Device and method for adjusting backlight of red-green-blue-white (RGBW) light display system
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A backlight adjustment and display system technology, applied to static indicators, cathode ray tube indicators, instruments, etc., can solve problems such as pixel brightness reduction
Inactive Publication Date: 2011-07-13
CPT TECH GRP +1
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Red-green-blue-white (RGBW) pixel brightness is reduced because the area of the red sub-pixel is reduced by a quarter
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[0030] Please refer to figure 2 , figure 2 It is a schematic diagram illustrating a red-green-blue-white (RGBW) display system 200 according to an embodiment of the present invention. The red, green, blue and white light display system 200 includes a backlight light source 202 , a backlight adjustment device 204 , a gray scale value generation unit 206 and a red, green, blue and white light display screen 208 . The backlight adjustment device 204 is used to receive the red, green, and blue sub-pixels of a red, green, and blue pixel PRGB, and adjust the backlight source 202 according to the red, green, and blue sub-pixels of the red, green, and blue pixel PRGB, wherein the red, green, and blue The grayscale values of the sub-pixels are R, G, and B. The backlight adjustment device 204 includes a color saturation generation unit 2042 , a gain value generation unit 2044 and an adjustment unit 2048 . The color saturation generation unit 2042 is used to generate the color sat...
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Abstract
The invention relates to a backlight adjusting device. The device comprises a color saturation generating unit, a gain value generating unit and an adjusting unit, wherein, the color saturation generating unit is used for receiving a red-green-blue (RGB) light sub-pixel of an RGB light pixel and generating the color saturation of the RGB light pixel according to the RGB light sub-pixel of the RGBlight pixel; the gain value generating unit is used for generating gain value of the RGB light pixel according to the color saturation; and the adjusting unit is used for adjusting a backlight sourceaccording to the average gain value of a plurality of the RGB light pixels.
Description
technical field [0001] The present invention relates to a device and method for adjusting backlight, in particular to a device and method for adjusting backlight applied to red, green, blue and white light display systems. Background technique [0002] The red, green, blue and white (RGBW) display is based on the traditional red, blue and green (RGB), adding white light (W). Because white light does not require color filters, it can provide higher brightness than traditional red, blue and green displays, and can reduce the power consumed by the backlight. Compared with the red, green, blue and white light display, the red, green, blue and white light display has two advantages: 1. Under the same power, the red, green, blue and white light display can provide higher brightness; 2. In the Under the same brightness, the red, green, blue and white light display saves more power. [0003] Although the red, green, blue and white light display has the above advantages, when displ...
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