Four-color data processing system

Abstract

An organic electro-luminescent display (OELD) device for processing multicolor gray-scale data, comprises a four-color converting part for converting primary RGB gray-scale data into compensated RGBW gray-scale data by adding white gray-scale data to the primary RGB gray-scale data, a data driving part for processing the compensated RGBW gray-scale data provided from the four-color converting part to generate four-color signals in an analog type, a scan driving part for generating scan signals in sequence, and an OELD panel for emitting light with a color in response to the four-color signals from the data driving part and the scan signals from the scan driving part. The four-color converting part includes a gamma converting part for converting the primary RGB gray-scale data, a white extracting part for extracting a white color component from the gamma-converted RGB data, a data determining part for generating four-color RGBW data, and a reverse-gamma converting part for reverse-gamma converting the four-color RGBW data.

Description

technical field [0001] The present invention relates to a system for processing four-color data, in particular an organic electroluminescent display (OELD) device and a method for processing four-color gray-scale data, the method can be used to increase the brightness and color sensitivity of the emitted color. Background technique [0002] Generally, a liquid crystal display (LCD) device uses four-color pixels to increase brightness. The four-color pixels include white (W) in addition to red (R), green (G), and blue (B). The LCD device increases the brightness of monochromatic or white light formed by mixing colors, but for high-purity colors such as primary colors, when the colors are mixed, the brightness of the color decreases and the color sensitivity also deteriorates. [0003] figure 1 A graph illustrating a conventional four-color display. see figure 1 , the displayable colors in the RG system are limited to the square area included by O, R, RG, and G. In the RG...

AI Technical Summary

Problems solved by technology

And since the pixel size in the RGY system is smaller than in the RG system, the brightness of the RGY system is also reduced

[0008] Similarly, for the RG and RGY systems, the brightness in the RGB or RGBW system also decreases, especially in the case of displaying primary colors, there is no or only a small increase in brightness, and the brightness may also decrease due to the reduction in pixel size

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