261:
1575:, which is the ability to discriminate depth by the use of both eyes. Vernier acuity and stereoacuity are cited as being detected with only a 2β4 arc second degree of separation. Ultimately all of the various types of acuity play a part in how we see things and more importantly, how we perceive what we are witnessing. The complexities of the human visual system and the relationship between different types of acuity are not yet fully understood. Thus, depending on which human visual system constraints are applied, viewing angles calculations will vary to some degree, especially when technological constraints are factored in.
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in order not to miss any detail a viewer would need to be situated at a position where their view angle to a 1080p HDTV is approximately 31.2 degrees or greater (32 degrees for spherical display), for 2160p HDTV approximately 58.37 degrees or greater (64 degrees for spherical display) and for 4320p HDTV approximately 96.33 degrees or greater (128 degrees for spherical display). However, there is not always agreement that the
Snellenian limit should be the constraining factor.
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angular relationships perceived by the viewer would be identical to those recorded by the camera. A mismatch in this regard is traditionally disregarded, but some rotating motions can make these distortions very noticeable as a pincushion effect. This is likely in 3D video games, so gamers are likely to adopt close viewing positions matched to a game's fixed field of view.
20:
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to be able to see pixel level detail. The maximum viewing distance will provide a viewing angle of approximately 16 degrees with Best Buy's recommendation and approximately 20 degrees with
Crutchfield's. The maximum viewing distance (minimum viewing angle) provided by Best Buy aligns with vision theory on the highest spatial frequencies perceivable by the
171:, resolution refers to the number of pixels (usually referred to as "dots") in a fixed linear measurement. With HDTV, resolution is measured in terms of the number of pixels in the physical display. When the resolution of a printed image is increased, the image is cleaner, crisper and more detailed. However, image quality does
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Furthermore, the study also found that the symptoms of motion sickness increased when subjects observed the visual stimuli without the aid of their glass or contact lenses. Consequently, optimum viewing distance recommendations based solely on human visual system and technological limitations may not
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Consideration should also be given to the height at which the screen is placed. A common suggestion is that the viewer's eyes are horizontally level with the bottom or middle of the display, so that the screen does not overpower the viewer. THX recommends that a viewer should not have to look up more
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One compromise assumes the lens is "standard" (a 50 mm focal length, for a standard 35 mm format). A "standard" lens preserves the same spatial relationships perceived by a spectator at the camera location. For a "standard" lens image, viewing distance should be equal to the diagonal length
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HDTV display when it is turned off, you can see the construction of the pixel grid. Turning the display on doesn't completely mask this. If you are too close to the display when it is on, it can look as though you're viewing it through a screen door. Even with different HDTV display technology, such
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threshold has been identified as a constraint factor in the recommendations on the optimum viewing distance for HDTV, and also in formal research that comment on the subject of television and angular resolution. Assuming display is flat, with 1 arcminute as the constraint for seeing critical detail,
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The recommendations currently posted on the websites of retailers Best Buy and
Crutchfield take more of a middle ground. Both retailers post a minimum viewing distance that accommodates a view angle of just a little over 32 degrees on average. This viewing distance approximates the view angle needed
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Research conducted on presence with HDTV and other higher resolution formats that use a wide field display, has revealed that sometimes the feeling of presence can be too real, producing physiological effect that some viewers may find undesirable. Subjects have reported experiencing an increase in
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that once stated their recommendation as a fixed distance, are starting to provide range recommendations. Manufacturers have also started to provide range recommendations, updating their websites with small applications that denote the optimum viewing distance as a range of distances. THX in March
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While THX still contends that the optimum viewing distance is a position where the display occupies a 40-degree view angle for the viewer, they too provide a range recommendation. The minimum viewing distance is set to approximate a 40-degree view angle, and the maximum viewing distance is set to
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Each recommendation serves the underlying goal of the organization that proposes it. Manufacturers will have an easier time selling their HDTVs if they support a position that does not require consumers to purchase as large a set as required by the THX recommendations. In the absence of economic
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recommends that the "best seat-to-screen distance" is one where the view angle approximates 40 degrees, (the actual angle is 40.04 degrees). Their recommendation was originally presented at the 2006 CES show, and was stated as being the theoretical maximum horizontal view angle, based on average
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To maximize the feeling of presence and thus provide a better viewing experience, the viewer would need to be situated at the theoretical spot where the HDTV occupies the widest view angle for that viewer. It is also important that the resolution of the display per degree of arc remain at a high
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If the camera's angle were always the same, an ideal viewing distance could be easily calculated. However, the camera's horizontal angle varies as the focal length of its lens changes. If the camera's sensor has fixed dimensions, a shorter focal length (wide angle) lens captures a wider angle of
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an increase in the feeling of presence did correlate with increased size. The researcher attributed these findings to the fact that the aforementioned content contained scenes that were shot with a point of view camera, scenes with sudden movements and shorter shots. Conversely, for programming
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The optimum viewing distance is affected by the horizontal angle of the camera capturing the image. One concept of an ideal viewing distance places the viewer where the horizontal angle subtended by the screen is the same as the horizontal angle captured by the camera. If this is the case, the
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Range recommendations from manufacturers are the most modest of the groupings. For the minimum (or nearest) viewing distance, they recommend a view angle of approximately 31 degrees; and for the maximum, a view angle as low as 10 degrees. A 10-degree view angle is approximately the angle that
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consisting of rows and columns of specific numbers of pixels. From far enough away, the human eye perceives the illuminated pixels as a smooth image. As one gets closer, a point occurs where the blocky appearance of individual pixels becomes apparent. The image then loses its smoothness, its
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data from formal testing. There is also the fact that the screen image is on a flat plane and not curved. Perhaps the biggest of these are uncertainties surrounding the limits of the human visual system, and how those limitations apply to what we see and perceive. A further, more practical
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Such opposing viewing distances would not only be impractical, but would negate the very purposes of telephoto shots (for example, to see a distant object in more detail, or minimize distortion in facial images) and wide-angle shots (causing the viewer to sit too close to the screen, where
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an arc minute (or 30 arc seconds), when estimating the saturation point for the human visual system. With 30 arc seconds as the constraint, the view angle necessary to see all the detail provided by an HDTV with a 1080p resolution drops to approximately 16.1 degrees. Furthermore, several
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490:(or SMPTE 30) recommendation (equivalent to about 1.6264 times the screen size in a 16:9 TV). This recommendation is very popular with the home theater enthusiast community, appears in books on home theater design, and is also supported by a white paper produced by
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Recommendations on HDTV viewing distances fall into two general classes; a fixed distance based on HDTV display size, or a range of distances based on the display size. The most common recommendations from reasonably authoritative sources are presented below.
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when viewing strong visual stimuli on large screens. A study conducted using virtual reality simulation as part of the experiment, found that subjects with lower visual acuity experienced significantly more of the symptoms associated with motion sickness.
586:, the technically adventurous and the sports enthusiast looking to have the ultimate viewing experience. Today, the typical HDTV consumer's aims may be a little more modest; total immersion takes a back seat to room integration. Major retail chains like
66:. Thus, the correct viewing distance is critical to the enjoyment of HDTV as it is intended. While helping to define the HDTV standard, RCA engineer and member of the US delegation to the International Telecommunication Union-Radiocommunication Sector (
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always produce the best viewing experience. Viewers with lower visual acuity, who prefer to watch HDTV without their corrective lenses may want to sit closer to see critical details and run the risk of undesirable side effects.
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The human visual system has a fixed capacity to detect detail from a distance. Our understanding of limitations with regard to visual detail recognition and identification from a distance is primarily based on the work of
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Fixed distance recommendations are the more common of the two types. For the most part, the majority of the fixed distance recommendations were issued before the end of 2007, when arguably HDTV displays were still in the
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Although studies show the feeling of presence and image size are directly correlated, calculating the size to viewing distance relationship may not be a necessary exercise for all consumers. A 1997 study, which
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Stating optimum viewing distance as a range rather than as fixed distance is on the rise; possibly because of changes in the profile of the typical HDTV purchaser. Early adopters of HDTV were typically
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Calculating the point where the human eye can detect pixels is not straightforward. Obviously, people's visual acuity varies greatly. But pixel geometry varies as well, in shape and spacing (known as
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is seen as the threshold beyond which critical detail cannot be identified by a person with normal vision. An arcminute is an angular measurement, which is equal to 1/60 of one degree of a circle.
97:
The concept of presence has been described as the sensation of "reality", of "being there", and as "an illusion of non mediation". The concept of presence originated and was studied with regard to
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articles have challenged the notion that 1 arcminute of resolution is the typical resolving power of the human eye, suggesting that on average, we can resolve detail smaller than that.
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view, requiring the viewer to sit closer to the screen. Conversely, a longer focal length (telephoto) lens captures a narrower angle of view, demanding a more distant viewer position.
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human vision. In the opinion of THX, the location where the display is viewed at a 40-degree view angle provides the most "immersive cinematic experience", all else being equal. For
1528:{\displaystyle {\textrm {VD}}={\frac {\textrm {32}}{{\sqrt {\left({\frac {\textrm {1920}}{\textrm {1080}}}\right)^{2}+1}}\cdot {\textrm {1080}}\cdot \tan {\frac {1}{60}}}}=49.94}
1411:{\displaystyle {\textrm {VD}}={\frac {\textrm {32}}{{\sqrt {\left({\frac {\textrm {1920}}{\textrm {1080}}}\right)^{2}+1}}\cdot {\textrm {480}}\cdot \tan {\frac {1}{60}}}}=112.36}
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Find the right video resolution. Example: a 53 cm high screen (43 inches diagonal), located at a distance of 300 cm, does not need to show video with a resolution higher than
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that increases in screen size would give rise to increased feelings of presence, found that the content was more important than the screen size. The findings were that for
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While viewing an HDTV display from a shorter distance can produce an increased sense of presence, the limitations of technology can have an adverse effect if the viewer is
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1255:{\displaystyle {\textrm {VD}}={\frac {\textrm {DS}}{{\sqrt {\left({\frac {\textrm {NHR}}{\textrm {NVR}}}\right)^{2}+1}}\cdot {\textrm {CVR}}\cdot \tan {\frac {1}{60}}}}}
153:) increases the feeling of presence. More importantly, the wider the visual angle (up to a plateau at approximately 80 degrees), the greater the feeling of presence.
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environments. It was later established that television viewers could also experience a feeling of presence. Presence is influenced by a number of factors, including
498:(or UHDTV), does support the premise that HDTV was optimized for a view angle of 30 degrees, there seems to be no direct recommendation from SMPTE on the issue.
474:, though the popular electronics review website CNET suggests that high-resolution content can be watched at a closer distance β 1.5 times the display screen's
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241:, it must be expressed in picture heights (H). If a screen is 50 cm high and it is at a distance of 250 cm, then in picture heights, its distance is 5 H (
1295:, you must multiply the angle by PI()/180. If DS is given in inches, VD will be in inches. If VD in meters is desired, multiply VD by 2.54 and divide by 100.
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2006:
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application of their recommendations, THX recommends dividing the diagonal screen measurement by .84 to calculate the optimum viewing distance, for a
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453:; It is the distance actually observed in households that should be used. It is much greater than the optimal viewing distance and highly variable.
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improve if the increase in resolution exceeds the observer's visual capabilities. For an HDTV's image to noticeably improve, its resolution per
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influences, calculating the best screen-size-to-distance ratio that will produce the utmost feeling of presence is not at all straightforward.
591:
2009 added range recommendations to their website. The minimum of the range tends to be the proponent's fixed optimum distance recommendation.
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format is wider). The optimal distance is therefore 1.6 times the height of the screen. The best compromise with the ideal listening zone, the
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Plasma
Display Panel (PDP) vs. Liquid Crystal Display (LCD) Technology : An overview of Consumer Benefits for Home Theater Applications
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measurement of the display screen by 2.5. This recommendation is cited by television manufacturers, retailers, respected publications and
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213:(Ultra High Definition) technology. This new technology allows for much shorter viewing distances, which requires greater precision.
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818:. Crutchfield's maximum viewing distance aligns with the lower boundaries where viewers typically begin to find HDTV immersive.
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1624:, the way HDTV images are rendered limits how close a viewer can be before the image's segmented nature becomes evident.
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There are a number of factors that can affect the calculation including the limitations of the human visual system, the
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Distance in picture heights. Here the distance is 3.2 picture heights (H). This is the optimal viewing distance for
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To calculate the viewing distance, based on display size and content resolution, the following formula may be used:
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1858:"Recommendation ITU-R BT.500-15, Methodologies for the subjective assessment of the quality of television images"
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paper on the limits of human vision and video display systems uses a different constraint value of approximately
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consideration, is one of room size, including the position of speakers, seating and other furniture in the room.
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59:
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Note: Make sure the angle mode is set to degrees when calculating the tangent. If using a spreadsheet such as
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Viewing an HDTV from a position where the display occupies a 30-degree field of view is widely quoted as the
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Example: for a 1080 HDTV used at a distance of 250 cm, you need to find a screen whose height is close to
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It has been demonstrated that viewing a display that occupies a greater visual angle (also referred to as
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system it is designed to replace. The "thrilling realism" HDTV attempts to offer arises from increased
31:
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1968:"Research On Human Factors in Ultrahigh-Definition Television (UHDTV) to Determine its Specifications"
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Tests of Visual acuity to determine the resolution required of a television transmission system β BBC
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Visual Acuity, Eye
Movements, the Illusion of Motion and Motion Sickness with Optokinetic stimuli
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Normal vision is referenced as 20/20 or 6/6 vision in North
America and Europe respectively. The
494:. Although an article on research into setting the specification for the next evolution of HDTV,
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techniques, audio fidelity, visual and aural dimensionality, and most relevantly to this topic,
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1914:"Psychophysical Analysis of the "Sensation of Reality" Induced by a Visual Wide-Field Display"
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One of the more popular recommendations on the proper HDTV viewing distance is multiply the
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Widening the Field-of-View
Increase the Sense of Presence in Immersive Virtual Environments
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quality level. Opinions regarding where the ideal position lies are numerous and varied.
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2192:. IHM '17. New York, NY, USA: Association for Computing Machinery. pp. 147β155.
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perceived quality drops, and the advantage of closer viewing becomes a disadvantage.
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screen 140 cm high (112 inches diagonal), the optimal distance is 140 Γ 1.6 = 224 cm.
209:, which is based on physics and physiology, has become essential with the advent of
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2586:"Technology; HDTV's Acceptance Picks Up Pace as Prices Drop and Networks Sign On"
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of colored 4-sided pixels. Like computer monitors, each HDTV display has a video
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Image with a portion greatly enlarged, showing how individual pixels are rendered
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179:(or angular resolution) must increase as well as the pixel count of the display.
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resolution. This equates to multiplying the diagonal measurement by about 1.2.
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54:(detail) and the typically large screen sizes. A larger display increases the
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1136:). From his findings and the work of others over the last hundred years, one
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Ferwerda, J.A.; Pattanaik, S.N.; Shirley, P.; Greenberg, D.P. (1995-06-20),
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Guides & Resources β Calculate the optimal viewing distance for your TV
2181:"Viewing distance requires large characters to ensure legibility on TV-set"
1966:
Sugawara, S.; Masaoka, K.; Emoto, M.; Matsuo, Y.; Nojiri, Y. (April 2008),
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considerations, the content that will be viewed, and the interpretation of
106:
78:. This approach, based on the limits of the human eye, can be used for all
55:
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viewing distance is the distance that provides the viewer with the optimum
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2180:
1857:
257:). Mathematically, this gives the distances shown in the following table:
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Lombard, M.; Reich, R.D.; Grabe, M.E.; Bracken, C.C.; Bitton, T. (2000),
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1132:. Dr. Snellen developed the eye examination chart that bears his name (
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Sugawara, M; Mitiani, K; Kanazawa, FM; Okano, F.; Nishida, Y (2005),
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Presence and video games: The impact of image quality and skill level
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1571:, which is the eye's ability to detect an offset between 2 lines and
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74:, made an early analysis of viewing distance, deriving the so-called
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229:. This is its ability to distinguish between two pixels. For normal
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changing the screen size had no effect on the feeling of presence.
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HDTV is designed to provide an experience more realistic than the
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Proceedings of the 29th
Conference on l'Interaction Homme-Machine
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CVR: Vertical resolution of the video being displayed (in pixels)
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19:
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Forrester, J.V.; Dick, A.D.; McMenamin, P.G.; Lee, W.R. (2002),
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Bertolus, CΓ©dric; Bailleul, Daniel; Mersiol, Marc (2017-08-29).
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Sitting beyond these distances will result in a loss of detail.
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is viewed, both of which contribute to an increased feeling of
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The Role of Screen size in Viewer
Responses to Television Fare
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Find the optimal distance for a given screen. Example: for a
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Lombard, M.; Ditton, T.B.; Grabe, M.E.; Reich, R.D. (1997),
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Webvision β The organization of the Retina and Visual System
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About.com Top 10 Home
Theater Mistakes and How to Avoid Then
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A Model of Visual Adaptation for Realistic Image Synthesis
2162:"Home Entertainment; In the Action With 'Star Wars' Sound"
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Waveform 05 Casual Viewer, Videophile or Critical Viewer?
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Super Hi-Vision β research on a future ultra-HDTV system
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measurement (corresponding to 32 degree viewing angle).
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3054:(2nd ed.), Elsevier Health Sciences, p. 229,
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NHR: Display's native horizontal resolution (in pixels)
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Displays: Angles, Distance Key to Home Theater Design
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Kuro Displays β Home Theater Design: Plasma Placement
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Future Prospects of HDTV βsamsung trends Toward 1080p
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NVR: Display's native vertical resolution (in pixels)
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Example for high-def video on a 32-inch 1080p HDTV:
225:" is based on the limits of the human eye, i.e. its
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Thick-film dielectric electroluminescent technology
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67" widescreen DLP HDTV HL67A510 β DLP TV β Samsung
1651:), depending on a display's technology and design.
1627:HDTV displays produce images the same way computer
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Fovea centralis Β§ Angular size of foveal cones
2562:"Essay; High Definition TV: All or Nothing at All"
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1912:Hatada, T.; Sakata, H.; Kusaka, H. (August 1980),
1911:
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440:Sound is 50 percent of the movie going experience"
3803:Comparison of CRT, LCD, plasma, and OLED displays
2141:Diffusion of Innovation, by Everett Rogers (1995)
2047:Fuller, Laurie Ulrich; Fuller, Robert C. (2004),
1890:Presence and Television β The Role of Screen Size
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594:
449:The optimal viewing distance is not suitable for
369:This table can be used in a number of ways :
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502:Γ 1.2 (corresponding to 40-degree viewing angle)
482:Γ 1.6 (corresponding to 30-degree viewing angle)
462:Γ 2.5 (corresponding to 20-degree viewing angle)
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2019:
1755:At the Heart of It All: The concept of Presence
145:Horizontal, vertical and diagonal field of view
134:undesirable image artifacts would be visible).
3135:Visual Perception in Realistic Image Synthesis
2997:Drewery, J.O.; Salmon, R.A. (September 2004),
2005:: CS1 maint: DOI inactive as of August 2024 (
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2115:Penetration of High Definition Television 23%
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82:(including future resolutions). This is the "
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3457:Surface-conduction electron-emitter display
3083:Journal of the Optical Society of America A
3076:"Physical limits of acuity and hyperacuity"
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2854:"Is This Living Room Big Enough for My TV?"
1803:Presence and Television: Form verus Content
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237:. To obtain a fixed distance for a given
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1603:close to the display. If you examine an
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2805:TV and HDTV: Frequently Asked Questions
2777:"Recommended TV Viewing Distance Chart"
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604:television was typically viewed from.
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2871:Kolb, H.; Fernandez, E.; Nelson, R.,
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2728:LG β HDTV Viewing Distance Calculator
2489:"HDTV Size and Distance Calculations"
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3504:Ferroelectric liquid crystal display
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2925:Visual Acuity: What is 20/20 Vision?
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2405:, Rockport Publishers, p. 60,
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2382:Howto: The Perfect TV for Your Room
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2055:, Wiley Publishing, Inc., pp.
1825:Bracken, C.C.; Skalski, P. (2006),
1800:Bracken, C.C.; Botta, R.A. (2002),
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3777:Large-screen television technology
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182:
14:
3844:
3451:Organic light-emitting transistor
2754:"Viewing Distance vs. Resolution"
2538:Fleischman, M. (September 2002),
2312:
1843:
521:
195:
113:size (visual angle) and quality (
3814:Comparison of display technology
2946:
2852:Grobart, Sam (8 February 2012).
2266:
1752:Lombard, M.; Ditton, T. (1997),
1088:
551:guide to writing better articles
530:
419:Find the best seat in the cinema
3445:Electroluminescent Quantum Dots
2845:
2769:
2752:Morrison, G. (September 2006),
2172:
2153:
1587:Magnification of the pixel grid
1022:8.75' β 14.75' (2.7 m β 4.5 m)
916:
827:
676:
611:
401:= 78 cm (63 inches diagonally).
120:
3516:Laser-powered phosphor display
2461:THX Home Theater Display Setup
1767:
1123:Human visual system limitation
1014:8.13' β 13.5' (2.5 m β 4.1 m)
1006:7.25' β 12.0' (2.2 m β 3.7 m)
982:6.25' β 10.5' (1.9 m β 3.2 m)
966:5.25' β 8.75' (1.6 m β 2.7 m)
950:4.63' β 7.71' (1.4 m β 2.4 m)
869:5.3' β 10.5' (1.6 m β 3.2 m)
595:Manufacturers' recommendations
233:(6/6 vision), this angle is 1
1:
3782:Optimum HDTV viewing distance
3772:History of display technology
3660:Computer-generated holography
2950:How Visual Acuity is Measured
1739:
1032:
998:6.9' β 11.5' (2.1 m β 3.5 m)
990:6.5' β 10.8' (2.0 m β 3.3 m)
974:5.75' β 9.5' (1.7 m β 2.9 m)
958:5.0' β 8.33' (1.5 m β 2.5 m)
942:4.0' β 6.66' (1.2 m β 2.0 m)
934:3.25' β 5.5' (1.0 m β 1.7 m)
909:8.1' β 16.3' (2.5 m β 5.0 m)
901:7.5' β 15.0' (2.3 m β 4.6 m)
893:6.8' β 12.8' (2.1 m β 3.9 m)
885:6.3' β 12.5' (1.9 m β 3.8 m)
877:5.8' β 11.5' (1.8 m β 3.5 m)
845:3.3' β 6.5' (1.0 m β 2.0 m)
41:
3362:Organic light-emitting diode
3356:Light-emitting diode display
2160:Fantel, Hans (May 3, 1992).
1975:SMPTE Motion Imaging Journal
1660:symptoms that are common to
1612:as front or rear projection
1567:Also, there is the issue of
861:4.3' β 8.5' (1.3 m β 2.6 m)
853:3.8' β 7.6' (1.2 m β 2.3 m)
661:5'5" β 15'10" (1.7 β 4.8 m)
7:
2975:Standards for Visual Acuity
2632:Cripps, Dale (2004-10-15),
2610:"TV Maze: A Survival Guide"
2608:Schiesel, S. (2003-11-27),
1702:
1275:DS: Display's diagonal size
669:6'0" β 17'0" (1.8 β 5.2 m)
653:5'4" β 15'1" (1.6 β 4.6 m)
645:4'4" β 12'1" (1.3 β 3.7 m)
637:3'5" β 9'10" (1.0 β 3.0 m)
629:3'0" β 8'4" (0.9 β 2.5 m)
92:
10:
3849:
3833:High-definition television
3572:Vacuum fluorescent display
3296:Electroluminescent display
2972:Evans, J.M. (2006-06-16),
2830:The Limits of Human Vision
2683:Toshiba Regza Room Planner
2357:Ranada, D. (Feb 3, 2006),
2289:Brady, M.P. (2009-01-19),
1673:End-user content selection
1155:
1082:6.0' β 9.0' (1.8 β 2.7 m)
1066:4.0' β 6.0' (1.2 β 1.8 m)
1058:3.5' β 5.0' (1.0 β 1.5 m)
451:designing a user interface
381:Find the right screen size
160:
3811:
3759:
3721:
3680:
3625:
3529:
3428:
3419:Liquid crystal on silicon
3323:
3270:
3261:
2802:Kindig, S. (2009-02-17),
2659:Choosing Your Screen Size
2584:Taub, E.A. (2003-03-31),
2560:Taub, E.A. (2001-02-15),
2379:Burger, D. (2008-04-08),
1305:on a 32-inch 1080p HDTV:
416:with no perceptible gain.
223:"optimal viewing distance
3610:Fourteen-segment display
3413:Digital Light Processing
3157:Pugue, D. (2004-12-16),
1635:) are produced, using a
1074:5' β 7.5' (1.5 β 2.2 m)
1038:approximate 28 degrees.
217:Optimal viewing distance
207:optimal viewing distance
85:optimal viewing distance
38:visual HDTV experience.
3616:Sixteen-segment display
3302:Rear-projection display
2781:Toshiba Research Center
2541:Having a Ball with HDTV
2198:10.1145/3132129.3132133
1686:, action-adventure and
3463:Field-emission display
3378:Liquid-crystal display
3103:10.1364/josaa.1.000775
3074:Geisler, W.S. (1984),
2514:, 2006, archived from
2291:"Picture-Perfect HDTV"
2138:Orr, G. (2003-03-18),
1734:Sweet spot (acoustics)
1596:
1588:
1579:Technology limitations
1529:
1412:
1256:
809:Retail recommendations
408:. Presenting a higher
269:
205:phase. The concept of
146:
27:
3600:Eight-segment display
3594:Seven-segment display
3132:McNamara, A. (2001),
3025:Sugawara, M. (2008),
2360:Maxing Out Resolution
2245:Tinblock, E. (2006),
2121:, Nielsen, 2008-12-11
1989:(inactive 2024-08-12)
1594:
1586:
1530:
1413:
1257:
263:
144:
22:
3722:Display capabilities
3605:Nine-segment display
3307:Plasma display panel
3159:"How Far From HDTV?"
2508:THX Home Theater 101
2495:on 28 February 2014.
2401:Rushing, K. (2004),
1709:Contrast sensitivity
1427:
1310:
1272:VD: Viewing distance
1160:
457:Diagonal measurement
414:ecological footprint
99:virtual reality (VR)
89:found in the ITU-R.
3751:See-through display
3655:Holographic display
3333:Quantum dot display
3181:Webb, N.A. (2004),
3095:1984JOSAA...1..775G
2403:Home Theater Design
2051:Photoshop CS3 Bible
1688:reality programming
1130:Dr. Hermann Snellen
1043:
919:
830:
816:human visual system
679:
614:
273:
227:angle of resolution
3793:Color Light Output
3787:High Dynamic Range
3589:Dot-matrix display
3584:Lightguide display
3255:Display technology
3163:The New York Times
2858:The New York Times
2707:RCA β Room Planner
2614:The New York Times
2590:The New York Times
2566:The New York Times
2335:Katzmeier, David,
2166:The New York Times
1597:
1589:
1525:
1408:
1252:
1050:Recommended Range
1041:
926:Recommended Range
917:
837:Recommended Range
828:
686:Recommended Range
677:
621:Recommended Range
612:
438:, must be found; "
272:
270:
157:Angular resolution
147:
115:angular resolution
72:Bernard J. Lechner
28:
3820:
3819:
3746:Always-on display
3537:Electromechanical
3525:
3524:
2207:978-1-4503-5109-6
1540:
1539:
1517:
1514:
1494:
1485:
1467:
1465:
1460:
1445:
1434:
1400:
1397:
1377:
1368:
1350:
1348:
1343:
1328:
1317:
1250:
1247:
1227:
1218:
1200:
1198:
1193:
1178:
1167:
1094:than 15 degrees.
1086:
1085:
1030:
1029:
1026:
1025:
913:
912:
806:
805:
802:
801:
673:
672:
579:
578:
571:
545:used on Knowledge
543:encyclopedic tone
366:
365:
3840:
3798:Flexible display
3760:Related articles
3640:Autostereoscopic
3339:Electronic paper
3285:Cathode-ray tube
3268:
3267:
3248:
3241:
3234:
3225:
3224:
3219:
3218:
3217:
3216:
3211:
3200:
3194:
3193:
3192:
3191:
3178:
3172:
3171:
3170:
3169:
3154:
3148:
3147:
3146:
3145:
3140:
3129:
3120:
3119:
3118:
3117:
3080:
3071:
3065:
3064:
3047:
3041:
3040:
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3038:
3033:
3022:
3013:
3012:
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3010:
3005:
2994:
2988:
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2986:
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2980:
2969:
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2957:
2944:
2935:
2934:
2933:
2932:
2920:
2914:
2913:
2912:
2911:
2906:
2895:
2889:
2888:
2887:
2886:
2877:, archived from
2868:
2862:
2861:
2849:
2843:
2842:
2841:
2840:
2835:
2824:
2815:
2814:
2813:
2812:
2799:
2793:
2792:
2790:
2788:
2773:
2767:
2766:
2765:
2764:
2758:Sound and Vision
2749:
2738:
2737:
2736:
2735:
2723:
2717:
2716:
2715:
2714:
2702:
2693:
2692:
2691:
2690:
2678:
2669:
2668:
2667:
2666:
2654:
2645:
2644:
2643:
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2629:
2623:
2622:
2621:
2620:
2605:
2599:
2598:
2597:
2596:
2581:
2575:
2574:
2573:
2572:
2557:
2551:
2550:
2549:
2548:
2535:
2529:
2528:
2527:
2526:
2520:
2513:
2503:
2497:
2496:
2491:. Archived from
2485:
2476:
2475:
2474:
2473:
2464:, archived from
2456:
2441:
2440:
2439:
2438:
2433:, September 2003
2432:
2422:
2416:
2415:
2398:
2392:
2391:
2390:
2389:
2376:
2370:
2369:
2368:
2367:
2354:
2348:
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2346:
2345:
2332:
2326:
2325:
2324:
2323:
2310:
2304:
2303:
2302:
2301:
2286:
2280:
2279:
2278:
2277:
2264:
2258:
2257:
2256:
2255:
2242:
2233:
2232:
2231:
2230:
2218:
2212:
2211:
2191:
2176:
2170:
2169:
2157:
2151:
2150:
2149:
2148:
2135:
2129:
2128:
2127:
2126:
2120:
2110:
2104:
2103:
2102:
2101:
2096:
2085:
2070:
2069:
2054:
2044:
2033:
2032:
2031:
2030:
2017:
2011:
2010:
2004:
1996:
1995:
1994:
1972:
1963:
1942:
1941:
1940:
1939:
1918:
1909:
1903:
1902:
1901:
1900:
1895:
1884:
1873:
1872:
1870:
1869:
1854:
1841:
1840:
1839:
1838:
1833:
1822:
1816:
1815:
1814:
1813:
1808:
1797:
1786:
1785:
1784:
1783:
1771:
1765:
1764:
1763:
1762:
1749:
1558:
1557:
1553:
1547:Sun Microsystems
1534:
1532:
1531:
1526:
1518:
1516:
1515:
1507:
1496:
1495:
1492:
1486:
1478:
1477:
1472:
1468:
1466:
1463:
1461:
1458:
1456:
1449:
1446:
1443:
1441:
1436:
1435:
1432:
1417:
1415:
1414:
1409:
1401:
1399:
1398:
1390:
1379:
1378:
1375:
1369:
1361:
1360:
1355:
1351:
1349:
1346:
1344:
1341:
1339:
1332:
1329:
1326:
1324:
1319:
1318:
1315:
1261:
1259:
1258:
1253:
1251:
1249:
1248:
1240:
1229:
1228:
1225:
1219:
1211:
1210:
1205:
1201:
1199:
1196:
1194:
1191:
1189:
1182:
1179:
1176:
1174:
1169:
1168:
1165:
1154:
1153:
1044:
1040:
920:
831:
824:
823:
798:(1.98 β 3.14 m)
797:
793:
782:(1.68 β 2.65 m)
781:
777:
766:(1.52 β 2.41 m)
765:
761:
750:(1.43 β 2.26 m)
749:
745:
733:
729:
718:(1.28 β 2.04 m)
717:
713:
702:(1.22 β 1.92 m)
701:
697:
680:
615:
608:
607:
574:
567:
563:
560:
554:
553:for suggestions.
549:See Knowledge's
534:
533:
526:
400:
398:
397:
394:
391:
274:
271:
256:
254:
253:
250:
247:
76:Lechner distance
3848:
3847:
3843:
3842:
3841:
3839:
3838:
3837:
3823:
3822:
3821:
3816:
3807:
3755:
3717:
3703:Slide projector
3693:Movie projector
3676:
3621:
3521:
3431:
3424:
3325:
3319:
3272:
3257:
3252:
3222:
3214:
3212:
3209:
3201:
3197:
3189:
3187:
3179:
3175:
3167:
3165:
3155:
3151:
3143:
3141:
3138:
3130:
3123:
3115:
3113:
3078:
3072:
3068:
3062:
3048:
3044:
3036:
3034:
3031:
3023:
3016:
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3003:
2995:
2991:
2983:
2981:
2978:
2970:
2963:
2955:
2953:
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2928:
2922:
2921:
2917:
2909:
2907:
2904:
2896:
2892:
2884:
2882:
2869:
2865:
2850:
2846:
2838:
2836:
2833:
2827:Deering, M.F.,
2825:
2818:
2810:
2808:
2800:
2796:
2786:
2784:
2775:
2774:
2770:
2762:
2760:
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2741:
2733:
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2712:
2710:
2704:
2703:
2696:
2688:
2686:
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2679:
2672:
2664:
2662:
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2655:
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2640:
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2606:
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2592:
2582:
2578:
2570:
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2558:
2554:
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2518:
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2504:
2500:
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2457:
2444:
2436:
2434:
2430:
2424:
2423:
2419:
2413:
2399:
2395:
2387:
2385:
2377:
2373:
2365:
2363:
2355:
2351:
2343:
2341:
2338:TV Buying Guide
2333:
2329:
2321:
2319:
2311:
2307:
2299:
2297:
2287:
2283:
2275:
2273:
2265:
2261:
2253:
2251:
2243:
2236:
2228:
2226:
2220:
2219:
2215:
2208:
2189:
2177:
2173:
2158:
2154:
2146:
2144:
2136:
2132:
2124:
2122:
2118:
2112:
2111:
2107:
2099:
2097:
2094:
2086:
2073:
2067:
2045:
2036:
2028:
2026:
2018:
2014:
1998:
1997:
1992:
1990:
1970:
1964:
1945:
1937:
1935:
1916:
1910:
1906:
1898:
1896:
1893:
1885:
1876:
1867:
1865:
1856:
1855:
1844:
1836:
1834:
1831:
1823:
1819:
1811:
1809:
1806:
1798:
1789:
1781:
1779:
1773:
1772:
1768:
1760:
1758:
1750:
1746:
1742:
1705:
1675:
1662:motion sickness
1657:
1633:raster graphics
1631:(also known as
1581:
1555:
1551:
1550:
1506:
1491:
1490:
1473:
1462:
1457:
1455:
1451:
1450:
1448:
1447:
1442:
1440:
1431:
1430:
1428:
1425:
1424:
1389:
1374:
1373:
1356:
1345:
1340:
1338:
1334:
1333:
1331:
1330:
1325:
1323:
1314:
1313:
1311:
1308:
1307:
1298:
1239:
1224:
1223:
1206:
1195:
1190:
1188:
1184:
1183:
1181:
1180:
1175:
1173:
1164:
1163:
1161:
1158:
1157:
1125:
1100:
1091:
1035:
821:
811:
795:
791:
779:
775:
763:
759:
747:
743:
734:(1.4 β 2.22 m)
731:
727:
715:
711:
699:
695:
605:
597:
575:
564:
558:
555:
548:
539:This article's
535:
531:
524:
504:
484:
464:
459:
442:- George Lucas.
412:means a larger
395:
392:
389:
388:
386:
251:
248:
245:
244:
242:
219:
198:
185:
183:Recommendations
165:
159:
138:of the screen.
123:
95:
44:
17:
12:
11:
5:
3846:
3836:
3835:
3818:
3817:
3812:
3809:
3808:
3806:
3805:
3800:
3795:
3790:
3784:
3779:
3774:
3769:
3763:
3761:
3757:
3756:
3754:
3753:
3748:
3743:
3738:
3737:
3736:
3725:
3723:
3719:
3718:
3716:
3715:
3710:
3705:
3700:
3695:
3690:
3684:
3682:
3678:
3677:
3675:
3674:
3669:
3664:
3663:
3662:
3657:
3647:
3642:
3637:
3631:
3629:
3623:
3622:
3620:
3619:
3613:
3607:
3602:
3597:
3591:
3586:
3581:
3575:
3569:
3564:
3559:
3554:
3553:
3552:
3549:
3544:
3533:
3531:
3527:
3526:
3523:
3522:
3520:
3519:
3513:
3507:
3501:
3500:
3499:
3494:
3483:
3482:
3481:
3479:Liquid crystal
3476:
3466:
3460:
3454:
3448:
3442:
3436:
3434:
3426:
3425:
3423:
3422:
3416:
3410:
3409:
3408:
3403:
3398:
3397:
3396:
3391:
3375:
3374:
3373:
3372:
3371:
3353:
3352:
3351:
3346:
3336:
3329:
3327:
3321:
3320:
3318:
3317:
3316:
3315:
3304:
3299:
3293:
3288:
3282:
3276:
3274:
3265:
3263:Video displays
3259:
3258:
3251:
3250:
3243:
3236:
3228:
3221:
3220:
3195:
3173:
3149:
3121:
3089:(7): 775β782,
3066:
3060:
3042:
3014:
2989:
2961:
2936:
2915:
2890:
2863:
2844:
2816:
2794:
2768:
2739:
2718:
2694:
2670:
2646:
2624:
2600:
2576:
2552:
2530:
2498:
2477:
2442:
2417:
2411:
2393:
2371:
2349:
2327:
2305:
2281:
2259:
2234:
2213:
2206:
2171:
2152:
2130:
2105:
2071:
2065:
2034:
2012:
1987:10.5594/J15117
1943:
1933:10.5594/J01582
1927:(8): 117β126,
1904:
1874:
1842:
1817:
1787:
1766:
1743:
1741:
1738:
1737:
1736:
1731:
1726:
1721:
1716:
1711:
1704:
1701:
1697:drama programs
1691:consisting of
1674:
1671:
1656:
1653:
1649:interpixel gap
1580:
1577:
1569:vernier acuity
1538:
1537:
1524:
1521:
1513:
1510:
1505:
1502:
1499:
1489:
1484:
1481:
1476:
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631:
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627:
623:
622:
619:
596:
593:
577:
576:
538:
536:
529:
523:
522:Optimum ranges
520:
503:
500:
483:
480:
463:
460:
458:
455:
444:
443:
417:
402:
379:
364:
363:
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318:
312:
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308:
305:
299:
298:
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286:
285:
282:
277:
218:
215:
203:early adoption
197:
196:Fixed distance
194:
184:
181:
158:
155:
122:
119:
94:
91:
43:
40:
26:-oriented room
15:
9:
6:
4:
3:
2:
3845:
3834:
3831:
3830:
3828:
3815:
3810:
3804:
3801:
3799:
3796:
3794:
3791:
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3780:
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3775:
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3768:
3765:
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3744:
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3735:
3732:
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3714:
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3648:
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3643:
3641:
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3624:
3617:
3614:
3611:
3608:
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3598:
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3477:
3475:
3472:
3471:
3470:
3467:
3464:
3461:
3458:
3455:
3452:
3449:
3447:(ELQD/QD-LED)
3446:
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3435:
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3427:
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3199:
3186:
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3112:
3108:
3104:
3100:
3096:
3092:
3088:
3084:
3077:
3070:
3063:
3061:0-7020-1790-6
3057:
3053:
3046:
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3021:
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3002:
3001:
2993:
2977:
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2968:
2966:
2952:
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2941:
2927:
2926:
2919:
2903:
2902:
2894:
2881:on 2009-03-01
2880:
2876:
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2615:
2611:
2604:
2591:
2587:
2580:
2567:
2563:
2556:
2543:
2542:
2534:
2521:on 2010-01-03
2517:
2510:
2509:
2502:
2494:
2490:
2484:
2482:
2468:on 2010-01-03
2467:
2463:
2462:
2455:
2453:
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2449:
2447:
2429:
2428:
2421:
2414:
2412:1-59253-017-6
2408:
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2250:
2249:
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2225:
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2217:
2209:
2203:
2199:
2195:
2188:
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2175:
2167:
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2134:
2117:
2116:
2109:
2093:
2092:
2084:
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2078:
2076:
2068:
2066:0-470-11541-6
2062:
2058:
2053:
2052:
2043:
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2039:
2025:
2024:
2016:
2008:
2002:
1988:
1984:
1980:
1976:
1969:
1962:
1960:
1958:
1956:
1954:
1952:
1950:
1948:
1934:
1930:
1926:
1922:
1921:SMPTE Journal
1915:
1908:
1892:
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1883:
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1879:
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1230:
1220:
1215:
1212:
1207:
1202:
1185:
1170:
1156:
1152:
1149:
1146:
1145:visual acuity
1141:
1139:
1135:
1134:Snellen chart
1131:
1120:
1117:
1113:
1112:physiological
1109:
1108:technological
1104:
1095:
1089:Screen height
1081:
1078:
1077:
1073:
1070:
1069:
1065:
1062:
1061:
1057:
1054:
1053:
1049:
1046:
1045:
1039:
1021:
1018:
1017:
1013:
1010:
1009:
1005:
1002:
1001:
997:
994:
993:
989:
986:
985:
981:
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977:
973:
970:
969:
965:
962:
961:
957:
954:
953:
949:
946:
945:
941:
938:
937:
933:
930:
929:
925:
922:
921:
915:
908:
905:
904:
900:
897:
896:
892:
889:
888:
884:
881:
880:
876:
873:
872:
868:
865:
864:
860:
857:
856:
852:
849:
848:
844:
841:
840:
836:
833:
832:
826:
825:
822:
819:
817:
789:
786:
785:
773:
770:
769:
757:
754:
753:
741:
738:
737:
725:
722:
721:
709:
706:
705:
693:
690:
689:
685:
682:
681:
675:
668:
665:
664:
660:
657:
656:
652:
649:
648:
644:
641:
640:
636:
633:
632:
628:
625:
624:
620:
617:
616:
610:
609:
606:
603:
592:
589:
585:
573:
570:
562:
552:
546:
544:
537:
528:
527:
519:
517:
513:
508:
499:
497:
493:
489:
479:
477:
473:
469:
454:
452:
448:
441:
437:
433:
429:
425:
422:
418:
415:
411:
407:
403:
384:
380:
377:
373:
372:
371:
370:
361:
358:
356:
353:
352:
348:
345:
343:
340:
339:
335:
332:
330:
327:
326:
322:
319:
317:
314:
313:
309:
306:
304:
301:
300:
296:
293:
291:
288:
287:
283:
281:
278:
276:
275:
267:
262:
258:
240:
236:
232:
231:visual acuity
228:
224:
214:
212:
208:
204:
193:
189:
180:
178:
177:degree of arc
174:
170:
167:With printed
164:
154:
152:
151:field of view
143:
139:
135:
131:
127:
118:
116:
112:
108:
104:
100:
90:
88:
86:
81:
77:
73:
69:
65:
61:
57:
53:
49:
39:
37:
33:
25:
21:
3781:
3708:Transparency
3681:Static media
3635:Stereoscopic
3213:, retrieved
3205:
3198:
3188:, retrieved
3183:
3176:
3166:, retrieved
3162:
3152:
3142:, retrieved
3134:
3114:, retrieved
3086:
3082:
3069:
3051:
3045:
3035:, retrieved
3027:
3007:, retrieved
2999:
2992:
2982:, retrieved
2974:
2954:, retrieved
2949:
2947:Watt, W.S.,
2929:, retrieved
2924:
2918:
2908:, retrieved
2900:
2893:
2883:, retrieved
2879:the original
2873:
2866:
2857:
2847:
2837:, retrieved
2829:
2809:, retrieved
2804:
2797:
2787:November 14,
2785:. Retrieved
2780:
2771:
2761:, retrieved
2757:
2732:, retrieved
2727:
2721:
2711:, retrieved
2706:
2687:, retrieved
2682:
2663:, retrieved
2658:
2639:, retrieved
2634:
2627:
2617:, retrieved
2613:
2603:
2593:, retrieved
2589:
2579:
2569:, retrieved
2565:
2555:
2545:, retrieved
2540:
2533:
2523:, retrieved
2516:the original
2507:
2501:
2493:the original
2470:, retrieved
2466:the original
2460:
2435:, retrieved
2426:
2420:
2402:
2396:
2386:, retrieved
2381:
2374:
2364:, retrieved
2359:
2352:
2342:, retrieved
2337:
2330:
2320:, retrieved
2315:
2308:
2298:, retrieved
2294:
2284:
2274:, retrieved
2269:
2262:
2252:, retrieved
2247:
2227:, retrieved
2222:
2216:
2185:
2174:
2165:
2155:
2145:, retrieved
2140:
2133:
2123:, retrieved
2114:
2108:
2098:, retrieved
2090:
2050:
2027:, retrieved
2022:
2015:
1991:, retrieved
1981:(3): 23β29,
1978:
1974:
1936:, retrieved
1924:
1920:
1907:
1897:, retrieved
1889:
1866:. Retrieved
1861:
1835:, retrieved
1827:
1820:
1810:, retrieved
1802:
1780:, retrieved
1775:
1769:
1759:, retrieved
1754:
1747:
1729:Home Theater
1680:hypothesized
1676:
1667:
1658:
1648:
1646:
1626:
1600:
1598:
1573:stereoacuity
1566:
1544:
1541:
1423:
1420:
1306:
1301:Example for
1150:
1142:
1126:
1105:
1101:
1092:
1036:
918:CRUTCHFIELD
820:
812:
598:
580:
565:
556:
540:
505:
485:
465:
447:Please note!
446:
445:
439:
420:
382:
368:
367:
359:7680 Γ 4320
346:3840 Γ 2160
333:1920 Γ 1080
307:(720) Γ 576
294:(640) Γ 480
284:Opti. Dist.
222:
220:
206:
199:
190:
186:
172:
166:
148:
136:
132:
128:
124:
121:Visual angle
107:video camera
96:
83:
56:visual angle
45:
29:
24:Home-theater
3672:Fog display
3645:Multiscopic
3562:Fiber-optic
3474:Quantum dot
2313:Silva, R.,
1862:www.itu.int
1684:commercials
1047:Screen Size
923:Screen Size
834:Screen Size
683:Screen Size
618:Screen Size
584:videophiles
362:0.8 H
349:1.6 H
336:3.2 H
323:4.8 H
320:1280 Γ 720
310:6.0 H
297:7.2 H
80:resolutions
3713:Laser beam
3667:Volumetric
3627:3D display
3567:Nixie tube
3547:Split-flap
3432:generation
3406:Blue Phase
3326:generation
3273:generation
3215:2009-04-12
3190:2009-04-15
3168:2009-04-16
3144:2009-04-06
3116:2009-04-20
3037:2009-04-18
3009:2009-04-10
2984:2009-04-17
2956:2009-04-20
2931:2009-04-15
2910:2009-04-20
2885:2009-04-18
2839:2009-04-20
2811:2009-04-17
2763:2009-04-12
2734:2009-04-20
2713:2009-04-17
2689:2009-04-20
2665:2009-04-10
2641:2009-04-20
2619:2009-04-19
2595:2009-04-18
2571:2009-04-19
2547:2009-04-17
2525:2009-04-20
2472:2009-04-01
2437:2009-04-20
2388:2009-04-20
2366:2023-09-01
2344:2010-11-06
2322:2009-04-20
2300:2009-04-02
2276:2009-04-01
2267:Roth, B.,
2254:2009-04-19
2229:2009-04-10
2147:2009-04-19
2125:2009-04-19
2100:2009-04-20
2029:2009-04-20
1993:2009-02-12
1938:2009-04-20
1899:2009-04-15
1868:2024-04-15
1837:2009-04-20
1812:2009-04-20
1782:2009-04-20
1761:2009-04-20
1740:References
1714:View Angle
1693:talk shows
1641:resolution
1033:THX ranges
496:Ultra HDTV
436:sweet spot
410:resolution
280:Resolution
239:resolution
161:See also:
101:and other
52:resolution
48:television
42:Background
3767:Scan line
3741:DisplayID
3698:Neon sign
3688:Monoscope
3530:Non-video
3291:Jumbotron
2783:. Toshiba
2057:5, 75, 79
1535:(inches)
1504:
1498:⋅
1488:⋅
1418:(inches)
1387:
1381:⋅
1371:⋅
1303:DVD video
1237:
1231:⋅
1221:⋅
1138:arcminute
1116:empirical
829:BEST BUY
559:June 2011
303:PAL SECAM
58:at which
36:immersive
3827:Category
3650:Hologram
3557:Eggcrate
3542:Flip-dot
3488:display
3469:Laser TV
3440:microLED
3370:(AMOLED)
3324:Current
3280:Eidophor
2001:citation
1703:See also
1622:laser TV
1562:academic
678:TOSHIBA
588:Best Buy
512:consumer
476:diagonal
472:websites
468:diagonal
169:graphics
93:Presence
64:presence
30:Optimum
3734:CEA-861
3364:(OLED)
3349:Gyricon
3111:6747742
3091:Bibcode
3052:The Eye
1629:bitmaps
1554:⁄
1545:A 1998
492:Fujitsu
399:
387:
329:HD 1080
266:HD 1080
255:
243:
60:content
3618:(SISD)
3512:(TDEL)
3506:(FLCD)
3453:(OLET)
3421:(LCoS)
3380:(LCD)
3358:(LED)
3335:(QLED)
3309:(PDP)
3109:
3058:
2409:
2295:Forbes
2204:
2063:
1864:. 2023
1637:mosaic
1609:plasma
1406:112.36
1265:Where:
794:- 10.3
432:DCI 4K
428:4K UHD
424:DCI 4K
406:HD 720
376:4K UHD
355:8K UHD
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316:HD 720
268:video.
235:arcmin
3789:(HDR)
3612:(FSD)
3596:(SSD)
3580:(LEC)
3574:(VFD)
3518:(LPD)
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3344:E Ink
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