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RGBW (Red, Green, Blue and White) signal conversion method and system

A signal conversion and output signal technology, applied in color signal processing circuits, cathode ray tube indicators, instruments, etc., can solve problems such as lowering display quality and display distortion

Active Publication Date: 2015-07-22
BOE TECH GRP CO LTD +1
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Problems solved by technology

[0004] In another method, some RGBW sub-pixels are selectively deleted. Although this architecture can avoid the above problems, it will cause distortion during display and reduce the display quality.

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  • RGBW (Red, Green, Blue and White) signal conversion method and system
  • RGBW (Red, Green, Blue and White) signal conversion method and system
  • RGBW (Red, Green, Blue and White) signal conversion method and system

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Embodiment Construction

[0043] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0044] Such as figure 1 As shown, wherein (a) is a schematic diagram of a traditional RGB sub-pixel structure pixel array, (b) is a schematic diagram of a pixel array including sub-pixels of three colors in RGBW, such as the first row of pixels includes pixels RGB, WRG, BWR and GBW. (b) This array structure not only includes W sub-pixels, but also does not reduce the total number of pixels, and the resolution will not be affected. The present invention provides a way to convert RGB signals into adaptive figure 1The signal of the display panel shown in (b). Therefore, the RGBW signal conversion method of the present invention is to convert the input RGB signal into sign...

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Abstract

The invention relates to the technical field of display and discloses an RGBW (Red, Green, Blue and White) signal conversion method. The RGBW signal conversion method comprises the following steps: judging a signal of an absent sub pixel X of a pixel on a display panel, wherein X represents one of R, G, B and W; calculating respective gray-scale values Rout, Gout, Bout and Wout in an output signal according to gray-scale values Rin, Gin and Bin in an input signal; resetting a gray-scale value Xout corresponding to the X and generating an output signal of which the gray-scale value Xout is zero, wherein the Xout represents one of the Rout, the Gout, the Bout and the Wout. The invention further discloses an RGBW signal conversion system. According to the RGBW signal conversion method and the RGBW signal conversion system disclosed by the invention, the number of sub pixels is not increased, and the conversion of RGBW signals for displaying the resolution ratio can also be kept.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a RGBW signal conversion method and system. Background technique [0002] As the resolution of the current display panel is getting higher and higher, the PPI (Pixels Per Inch) is getting higher and higher, so that the transmittance of the panel is getting lower and lower, which greatly increases the manufacturing cost of the panel. Therefore, the RGBW algorithm is more and more widely used. [0003] The traditional RGBW signal conversion method is to convert the input RGB signal into RGBW data output, and each pixel on the display panel has an additional W sub-pixel, resulting in 4 / 3 times the number of sub-pixels of the display panel. That is to say, the traditional RGBW method has four sub-pixels per pixel, namely R\G\B\W. Compared with the case where each pixel has three sub-pixels (R / G / B), to maintain the same resolution , the number of sub-pixels needs to be incr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/02H04N9/64
Inventor 刘磊宋嘉嘉董殿正
Owner BOE TECH GRP CO LTD
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