General > General Technical Chat
The EU is banning 8K TV's!!!
NiHaoMike:
In theory, it could be possible to have a monochrome LCD and a RGB backlight to get color with about 1/3 the power. Some LCDs of that sort have been built, but it's hard to get the LCD fast enough for that to work well.
BrianHG:
--- Quote from: NiHaoMike on November 06, 2022, 10:44:31 pm ---In theory, it could be possible to have a monochrome LCD and a RGB backlight to get color with about 1/3 the power. Some LCDs of that sort have been built, but it's hard to get the LCD fast enough for that to work well.
--- End quote ---
Something I have not considered. There does exist a 14 ro 12 inch old studio Sony CRT (I think, it may have been Panasonic or Philips) which was a monochrome CRT with a large flat RGB cycling LCD shutter (one big fat pixel) in front to make a color display where the CRT ran at 3x refresh rate. It had something like 3-4x the display brightness and contrast of color CRTs with better convergence and true bleedless 4:4:4 color resolution used for on-site outdoor proofing in the film industry.
MK14:
This seems to be a REALLY old version (CBS), of a Monochrome to Colour TV method. Possibly before colour TVs were significantly available.
EDIT: Probably 1951, if the following link, is talking about the same system.
https://eyesofageneration.com/the-story-behind-the-cbs-rcanbc-color-feud-these-screen-shots-are-from-a-co/
nctnico:
--- Quote from: BrianHG on November 06, 2022, 11:37:16 pm ---
--- Quote from: NiHaoMike on November 06, 2022, 10:44:31 pm ---In theory, it could be possible to have a monochrome LCD and a RGB backlight to get color with about 1/3 the power. Some LCDs of that sort have been built, but it's hard to get the LCD fast enough for that to work well.
--- End quote ---
Something I have not considered. There does exist a 14 ro 12 inch old studio Sony CRT (I think, it may have been Panasonic or Philips) which was a monochrome CRT with a large flat RGB cycling LCD shutter (one big fat pixel) in front to make a color display where the CRT ran at 3x refresh rate. It had something like 3-4x the display brightness and contrast of color CRTs with better convergence and true bleedless 4:4:4 color resolution used for on-site outdoor proofing in the film industry.
--- End quote ---
The color versions of the Tektronix TDS500/600/700 series have exact that system. Unfortunately it doesn't work for me as the colors start to fade into eachother when I move my eye or head. Gives me a headache pretty quick.
PlainName:
Doesn't one of the smart meter displays use mono LCD and RGB LEDs? Pretty sure Big Clive took one apart but I can't find it now.
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