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Electrophoresis display liquid, electrophoresis color display device and manufacturing method of device

An electrophoretic display and color display technology, which is applied in nonlinear optics, instruments, optics, etc., can solve the problems of long screen refresh time, poor color saturation, and poor display effect, so as to achieve better display effect and improve color quality. Saturation, the effect of reducing light penetration loss

Pending Publication Date: 2020-12-15
广州融捷显示科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electrophoretic display liquid, an electrophoretic color display device and a manufacturing method, which solve the problem that although the traditional color electronic paper with a filter layer can realize color display, the light transmittance is not high and the color saturation is not high. Good, there is a certain color shift phenomenon, which leads to the problem of poor display effect; the color electronic paper containing more than three charged particles in the capsule or microcup structure has good display effect, but the problem of long screen refresh time

Method used

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  • Electrophoresis display liquid, electrophoresis color display device and manufacturing method of device
  • Electrophoresis display liquid, electrophoresis color display device and manufacturing method of device
  • Electrophoresis display liquid, electrophoresis color display device and manufacturing method of device

Examples

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Embodiment 1

[0030] like figure 1 As shown, an electrophoretic display liquid provided by the present invention includes colored particles 1 and black particles 2 with opposite polarities, and neutral white particles 3 uniformly distributed in a solvent or a solvent mixture.

[0031] Wherein, the colored particles 1 are prepared by including but not limited to acetate, or organic resin, or siderite, or pigment dyed polymer. It should be noted that various pigments can be used for the colored particles 1 .

[0032] Wherein, the black particles 2 are made of manganese ferrite black spinel, or copper chromite black spinel, or carbon black, or zinc sulfide, or dyed black polymer materials. It should be noted that suitable materials for the black particles 2 include inorganic, organic or polymer particles.

[0033] Wherein, the white particles 3 are made of materials including but not limited to TiO2, or BaSO4, or ZnO, or Al2O3, or PbSO4. It should be noted that the neutral white particles 3...

Embodiment 2

[0036] like figure 1 , figure 2 As shown, an electrophoretic color display device provided by the present invention also includes a plurality of arrays of microcup structures 6, and the electrophoretic liquid filled in the corresponding microcup structures 6 or the capsule suspension formed by the capsules filled with the electrophoretic liquid , the three microcup structures 6 form a pixel, and the three microcup structures 6 are respectively filled with corresponding electrophoretic fluid or capsule suspensions formed by capsules filled with electrophoretic fluid to form basic red display unit 7 and green display unit 9 and blue display unit 8. Specifically, the red display unit 7 includes charged red particles 11, charged black particles 2 and neutral white particles 3; the green display unit 9 includes charged green particles 12, charged black particles 2 and neutral white particles. The blue display unit 8 includes charged blue particles 13 , charged black particles 2 ...

Embodiment 3

[0039] like figure 1 , figure 2 and image 3 As shown, a method for manufacturing an electrophoretic color display device, comprising the following steps:

[0040] Coating a negative photoresist material on the common electrode layer 4 and fabricating a microcup structure 6 by mask photolithography or fabricating a microcup structure 6 on the pixel electrode layer 5;

[0041] Inject the electrophoretic liquid containing charged colored particles 1, charged black particles 2, and neutral white particles 3 or a capsule suspension formed by capsules filled with electrophoretic liquid into the microcup structure 6 of the corresponding color to form a red display Unit 7, green display unit 9 and blue display unit 8 form an RGB display unit;

[0042] The common electrode layer 4 and the pixel electrode layer 5 are pressed against each other and cured.

[0043] Specifically, the red display unit 7 includes charged red particles 11, charged black particles 2 and neutral white par...

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Abstract

The invention discloses an electrophoretic display liquid, an electrophoretic color display device and a manufacturing method of the device. The electrophoretic display liquid comprises color particles and black particles with opposite polarities, and neutral white particles; and the device comprises a plurality of arrayed micro-cup structures and an electrophoresis liquid filled in the corresponding micro-cup structures or a capsule suspension formed by capsules filled with the electrophoresis liquid, and the three micro-cup structures form a pixel. The three microcup structures are respectively filled with the corresponding electrophoresis liquid or the capsule suspension formed by the capsules filled with the electrophoresis liquid to form a basic red display unit, a green display unitand a blue display unit. The driving time is shorter, the color saturation of each color is improved, and the display effect is better.

Description

technical field [0001] The invention belongs to the technical field of color display, and relates to an electrophoretic display liquid, an electrophoretic color display device and a manufacturing method. Background technique [0002] There are two schemes for existing color electronic paper: the first one is composed of black and white electronic paper with a color filter structure. Due to the adhesion of multiple layers in this structure, the light transmittance is not high, the color saturation is not good, and there is a certain color shift phenomenon, resulting in a poor display effect. The second is that the capsule or microcup structure of the electrophoretic display layer contains a variety of colored particles, and the position of different charged particles is controlled by voltage to achieve the purpose of color mixing and realize the display of multiple colors. This kind of electronic paper has a good display effect, but because the capsule contains three or more...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/167G02F1/16757G02F1/1681G02F1/1676
CPCG02F1/167G02F1/16757G02F1/1681G02F1/1676
Inventor 何志陈伟岸高启仁胡堂祥
Owner 广州融捷显示科技有限公司
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