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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 approximate 28 degrees. [26]
In a technical context, the angular range is called viewing cone defined by a multitude of viewing directions. The viewing angle can be an angular range over which the display view is acceptable, [1] or it can be the angle of generally acceptable viewing, such as a twelve o'clock viewing angle for a display optimized or viewing from the top. [2]
The viewing cone refers to the effective viewing directions of an LCD display, as seen from the eye. This collection of angles resembles a cone. The concept has been introduced as an international standard ISO 13406-2, which defines it as the range of viewing directions that can safely be used for the intended task without "reduced visual performance".
These expert-recommended 4K TVs, from top brands including LG, Samsung, and Sony, deliver an immersive viewing experience for streaming, gaming, and more. The 10 Best 4K TVs That Guarantee a Great ...
TV, computer monitor, radar display, oscilloscope: Yes Direct view Charactron CRT: Spherical curve 24 61 Computer monitor, radar display: No CRT self-contained rear-projection Flat lenticular: 80 [4] 203 TV: Yes CRT front projection: Flat (limited only by brightness) TV or presentation No Plasma display: Flat 152 [5] 386 TV, computer monitor
On October 25, 2012, LG Electronics began selling the first flat panel Ultra HD display in the United States with a resolution of 3840 × 2160. [74] [75] [76] The LG 84LM9600 is an 84 in (210 cm) flat panel LED-backlit LCD display with a price of US$19,999 though the retail store was selling it for US$16,999. [74] [75] [76]
In October 2012, the Consumer Electronics Association (CEA) announced their definition of the term Ultra High-Definition (or Ultra HD) for use with marketing consumer display devices. [20] CEA defines an Ultra HD product as a TV, monitor, or projector with the following characteristics: [ 21 ]
Detail view of an LED display with a matrix of red, green and blue diodes The 1,500-foot (460 m) long LED display on the Fremont Street Experience in Downtown Las Vegas, Nevada, is currently the largest in the world. A LED display is a flat panel display that uses an array of light-emitting diodes (LEDs) as pixels for a video display.