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Electrophoretic display device for realizing multi-gray-scale color and display method thereof

An electrophoretic display and color technology, used in static indicators, nonlinear optics, instruments, etc., can solve the problems of increasing the screen refresh time, mixing colors, and affecting the user experience effect, so as to shorten the screen refresh time and achieve the effect of colorization.

Inactive Publication Date: 2019-10-11
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If you want to display color, the more colors you display, the longer it takes to separate particles of the same electrical property and different colors, which will greatly increase the screen refresh time and affect the user experience, and the more types of ink colors of the same electrical property , the more prone to color mixing problems
Furthermore, electrophoretic display will take longer to achieve grayscale

Method used

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  • Electrophoretic display device for realizing multi-gray-scale color and display method thereof
  • Electrophoretic display device for realizing multi-gray-scale color and display method thereof
  • Electrophoretic display device for realizing multi-gray-scale color and display method thereof

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Embodiment 1

[0021] Such as figure 1 As shown, the embodiment of the present invention provides an electrophoretic display device for realizing multi-grayscale color, including: a color electrophoretic display EPD pixel layer 10 and a liquid crystal layer 20;

[0022] The color EPD pixel layer includes EPD pixel units arranged in an array, each EPD pixel unit includes three sub-pixel units, and the EPD pixel unit displays colors through the color mixing of the three sub-pixel units;

[0023] The liquid crystal layer is arranged on the color EPD pixel layer, and the luminous flux of the outgoing light of the color EPD pixel layer is changed by controlling the liquid crystal deflection angle;

[0024] In one embodiment, the EPD pixel unit includes: a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit;

[0025] In one embodiment, the first sub-pixel unit displays white W or cyan C, the second sub-pixel unit displays white W or yellow Y, and the third sub-pixel unit disp...

Embodiment 2

[0060] Such as Figure 7 As shown, an embodiment of the present invention provides a display method for an electrophoretic display device, including:

[0061] Step S110, determining the electric field control signal of the liquid crystal layer and the electric field control signal of the EPD pixel layer of the color electrophoretic display according to the display pattern;

[0062] Step S120, controlling the liquid crystal deflection angle of the liquid crystal layer to change the luminous flux of the outgoing light of the color EPD pixel layer, and controlling the three sub-pixel units of each EPD pixel unit of the color EPD pixel layer to display colors through color mixing;

[0063] In one embodiment, the liquid crystal layer includes liquid crystal units arranged in an array, one liquid crystal unit corresponds to one EPD pixel unit; the liquid crystal unit includes three sub-liquid crystal units, and each sub-liquid crystal unit is correspondingly arranged in a sub-pixel ...

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PUM

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Abstract

The invention discloses an electrophoretic display device for realizing multi-gray-scale color and a display method thereof. The electrophoretic display device for realizing multi-gray-scale color comprises a color electrophoretic display EPD pixel layer and a liquid crystal layer, wherein the color EPD pixel layer comprises EPD pixel units arranged in an array, each EPD pixel unit comprises threesub-pixel units, and the EPD pixel units display colors through color mixing of the three sub-pixel units; the liquid crystal layer is arranged on the color EPD pixel layer, and the luminous flux ofemergent light of the color EPD pixel layer is changed by controlling the liquid crystal deflection angle. According to the technical scheme, colorization of the electronic paper can be achieved, andthe picture refreshing time of the colored electronic paper is shortened.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an electrophoretic display device and a display method for realizing multi-grayscale color. Background technique [0002] In the era of the Internet of Everything, the development direction of various electronic equipment carriers carrying the Internet of Things is low power consumption and renewable. Technologies such as electrophoretic display or cholesteric liquid crystal display strive to achieve a stable state of the material to ensure that the display does not need to be driven all the time. At present, the bistable products that can be mass-produced are mainly electrophoretic inks, that is, black and white inks represented by Eink. color is most common. The advantage of this kind of ink is that after the power is removed, the ink particles remain stable for a long time, thereby ensuring the normal display of the screen. Therefore, devices based on electrophoreti...

Claims

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Application Information

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IPC IPC(8): G09G3/34
CPCG09G3/344G09G2320/0271G09G2320/0666G02F1/167G09G3/2003G09G3/3611G09G2300/023G02F1/1676G02F1/137G02F2201/44G02F1/1685
Inventor 许睿田超王敏王哲李硕袁祥马青青高一男秦国杰
Owner BOE TECH GRP CO LTD
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