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Four color data transformation method and apparatus therefor

A technology of white data and data, applied in the direction of cathode ray tube indicators, instruments, static indicators, etc., can solve problems such as excessive changes, and achieve the effect of increasing brightness, improving the changes in hue and color saturation

Inactive Publication Date: 2006-12-20
WINTEK CORP
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Problems solved by technology

[0042] Another object of the present invention is to overcome the problem of excessive fluctuations in real-time comparison (simultaneous contrast) of images after brightening, and to improve the comparison (contrast) quality and effect of image display after brightening. The method and device for four-color data conversion

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  • Four color data transformation method and apparatus therefor
  • Four color data transformation method and apparatus therefor
  • Four color data transformation method and apparatus therefor

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Embodiment Construction

[0063] About detailed content and technical description of the present invention, now in conjunction with accompanying drawing, description is as follows:

[0064] see Figure 11 Shown is the calculation schematic diagram of the present invention. Wherein the device of the present invention includes: a minimum value extractor 31, in order to receive the three primary colors R (i, j) G (i, j) B (i, j) data of this pixel, and get its minimum value min (r, g, b) as the white data value w of the pixel. A subtraction unit 33, used to calculate the color difference r_diff, g_diff, b_diff of the pixel, wherein the color difference r_diff, g_diff, b_diff are the three primary colors of the pixel R(i, j)G(i, j)B(i , j) Data value r, g, b respectively subtract the difference value of white data value w, and the color difference value (r_diff, g_diff, b_diff) is output and compensated to adjacent pixels through the subtraction unit (33). An addition unit 32 is used to add the color di...

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Abstract

The invention relates to a method for transforming four colors as red, green, blue and white, wherein the pixel uses minimum value extractor to extract the red, green, blue minimum value as the white light data value that transformed to the four-color system; then calculating the difference between the red, green, blue colors, to add into nearby pixel or sub pixel, to increase the image brightness, compensate the color tune, and color saturation, and approach the condition of former red-green-blue system.

Description

technical field [0001] The invention relates to converting the image color data values ​​of the red, green, and blue three-color system into the image color data values ​​of the red, green, blue, and white four-color system, using a simple and easy-to-implement algorithm to provide the color tone and color saturation of the panel display quality compensation effect. Background technique [0002] Since the recent panel pixels (pixel) are composed of 4-color sub-pixels (subpixels), there is also white light (W) in addition to red light (R), green light (G) and blue light (B). Under the recent demand for high resolution of display panels, the RGBW color system can provide a solution with higher brightness or lower power consumption for the display, where the sub-pixel red (R) green (G) blue (B) The arrangement of white (W) is as follows: figure 1 and figure 2 shown. [0003] U.S. Patent US 5,929,843 proposes a method for digital conversion of RGB-to-RGBW image data. The me...

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Application Information

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IPC IPC(8): G09G5/02
Inventor 罗新台翁瑞兴
Owner WINTEK CORP
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