Electro-wetting displayer color display method and apparatus

An electrowetting display, color display technology, applied in static indicators, instruments, etc., can solve problems such as conversion errors and color distortion, and achieve the effect of ensuring image quality and improving color reproduction capabilities.

Active Publication Date: 2018-03-16
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the color gamut of the RGB color space is larger than the color gamut of the CMY color space, when the RGB image data is converted to CMY image data, due to the different color gamut ranges, conversion errors, etc. are prone to color distortion

Method used

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  • Electro-wetting displayer color display method and apparatus
  • Electro-wetting displayer color display method and apparatus
  • Electro-wetting displayer color display method and apparatus

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Embodiment Construction

[0038] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0039] A color display method of an electrowetting display of the present invention comprises the following steps,

[0040] Step S1, establishing the plane equation of CIELAB and CMY;

[0041] Step S11, extract the standard chromaticity values ​​of all K=0 of the printing standard IT8.7 / 3 three-color color block of the printer, and statistically select N sample data with fixed values ​​of C, M, and Y to establish equations respectively;

[0042] Step S12, establishing a plane equation, the calculation formula is:

[0043] L * =A*a * +B*b * +D

[0044] Among them, the coefficients A, B, and D are solved by the following formulas:

[0045]

[0046]

[0047]

[0048] are the mean values ​​of the sample data;

[0049] Step S13, calculating the relationship between the coefficients A, B, D and C, M, Y; the calculation formula...

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Abstract

The invention relates to an electro-wetting displayer color display method and apparatus. Since a structure of a color electro-wetting CMY laminated device is similar to the structure of a printing device, a conversion relationship between CIELAB and CMY is established on the basis of a planar equation theory, RGB input image data is firstly converted to CIELAB image data, then the corresponding CMY data is obtained by virtue of a planar equation, according to a relationship curve of the CMY and brightness as well as a relationship curve of the electro-wetting relative brightness and driving voltage, the original CMY data is converted to non-linearly-varied voltage of different increments and the voltage outputted by a line scanner unit to collectively act on an electro-wetting displayer pixel unit, so that nonpolarity fluid of the electro-wetting device pixel unit is shrunk, the precise display of the color electro-wetting image data color is realized, and the image display quality isimproved.

Description

technical field [0001] The invention relates to an electrowetting color display image processing technology, in particular to an electrowetting display color display method and a device thereof. Background technique [0002] In recent years, electrowetting has attracted much attention because of its fast refresh rate, no backlight, no polarization, high brightness, high contrast, and low energy consumption. Electrowetting display technology uses ink as raw material, and can realize electrowetting color display through the dynamic change of color ink. [0003] In 2015, South China Normal University published an article on a full-color dynamic three-layer electronic paper, which proposed a three-layer electrowetting display layer stacked device structure. The three-layer electrowetting display device structure is as follows: figure 1 As shown, the first electrowetting display layer, the second electrowetting display layer and the third electrowetting display layer are respect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCG09G3/348
Inventor 林志贤林珊玲郭太良曾素云单升起钱明勇
Owner FUZHOU UNIV
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