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CRT LCD Plasma OLED; Static contrast ratio Finite or infinite [citation needed] 150 to 8,100:1 [citation needed] Typically 1,000:1 - 3,000:1, Some models measured up to 20,333:1 [citation needed] "Between 0.0001 and 0.00001 nits" "Sony claims an OLED contrast range of 1,000,000:1." [1] Peak luminosity
In 1926, Kenjiro Takayanagi demonstrated a CRT TV receiver with a mechanical video camera that received images with a 40-line resolution. [22] By 1927, he improved the resolution to 100 lines, which was unrivaled until 1931. [23] By 1928, he was the first to transmit human faces in half-tones on a CRT display. [24]
The diagonal screen size of a CRT television is limited to about 100 cm (40 in) because of size requirements of the cathode-ray tube, which fires three beams of electrons onto the screen to create a viewable image. A large-screen TV requires a longer tube, making a large-screen CRT TV of about 130 to 200 cm (50 to 80 in) unrealistic.
(Today's CRT technology allows the manufacture of much wider tubes, and the flat-screen technologies which are becoming steadily more popular have no technical aspect ratio limitations at all.) The BBC's television service used a more squarish 5:4 ratio from 1936 to 3 April 1950, when it too switched to a 4:3 ratio. This did not present ...
Another industry trend was the consolidation of plasma display manufacturers, with around 50 brands available but only five manufacturers. In the first quarter of 2008, a comparison of worldwide TV sales broke down to 22.1 million for direct-view CRT, 21.1 million for LCD, 2.8 million for plasma, and 0.1 million for rear projection. [33]
In 2001, the FD Trinitron WEGA series had become the top selling television model in the United States. [3] By 2003, over 40 million sets had been sold worldwide. [ 4 ] As the television market shifted towards LCD technology, Sony eventually ended production of the Trinitron in Japan in 2004, and in the US in 2006.
The 2.1-inch Epson ET-10 [18] Epson Elf was the first color LCD pocket TV, released in 1984. [19] In 1988, a Sharp research team led by engineer T. Nagayasu demonstrated a 14-inch full-color LCD, [12] [20] which convinced the electronics industry that LCD would eventually replace CRTs as the standard television display technology. [12]
Overscan is a behaviour in certain television sets in which part of the input picture is cut off by the visible bounds of the screen. It exists because cathode-ray tube (CRT) television sets from the 1930s to the early 2000s were highly variable in how the video image was positioned within the borders of the screen. It then became common ...
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