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Electronic paper displaying device and manufacturing method thereof

A technology for display devices and electronic paper, which is applied to instruments, nonlinear optics, optics, etc., can solve the problems of unstable dyeing, reducing the brightness and contrast of electronic paper display devices, and uneven color rendering of electronic paper display devices.

Active Publication Date: 2015-01-28
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing electronic paper display devices with color display need to add color filters or the display layer includes colored dye particles with different charges, but after adding color filters, the transmittance will be reduced, thereby reducing the electronic paper display device. Brightness and contrast, when using colored dye particles with different charges, the dyeing of the particles is in an unstable state, which will cause uneven color rendering of the electronic paper display device

Method used

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  • Electronic paper displaying device and manufacturing method thereof
  • Electronic paper displaying device and manufacturing method thereof
  • Electronic paper displaying device and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0089] Example 1: If Image 6 As shown, the specific steps for making an electronic paper display device are as follows:

[0090] S201. Inject or print gel particles with a porous structure on the lower substrate; specifically, make a metal or black resin array layer on the lower substrate by photolithography, inject or print a layer of uniform dried The gel particles have not yet absorbed colored particles, and the thickness is between 1um and 10um;

[0091] S202. Place the lower substrate with the gel particles in a tank filled with an electrolyte that dissolves the colored particles; specifically, the electrolyte can be a neutral solution or an ionizable solution, such as deionized water, chlorinated Sodium solution can be selectively selected according to the different gel particles.

[0092] S203. Apply an electric field to the canning tank to cause the gel particles to swell and absorb the colored particles; specifically, place the lower substrate with the gel particle...

example 2

[0096] Example 2: If Figure 7 As shown, the specific steps for making an electronic paper display device are as follows:

[0097] S301. Place the gel particles with a pore-like structure in a canned tank containing an electrolyte that dissolves colored particles; specifically, the electrolyte can be a neutral solution or an ionizable solution, such as deionized water, chlorine Sodium chloride solution can be selectively selected according to the difference of gel particles.

[0098] S302. Apply an electric field to the canning tank to cause the gel particles to swell and absorb the colored particles; specifically, place the gel particles in an electric field environment and add a uniformly mixed colored particle system to allow the gel particles to swell and fully Earth absorbs colored particles;

[0099] S303. Inject or print the gel particles that absorb the colored particles on the lower substrate, and at this time, form the pattern of the display layer on the lower subs...

example 3

[0102] Example 3: If Figure 8 As shown, the specific steps for making an electronic paper display device are as follows:

[0103] Steps S401 and S404 are completely the same as steps S201 and S204 in the first example, and will not be repeated here.

[0104] S405. Form a covering layer with a microporous structure on the display layer; specifically, coat or print a white covering layer with micropores on the display layer, and the diameter of the micropores is slightly larger than the colored band absorbed by the gel particles. The diameter of the particle, a certain space is reserved between the covering layer and the upper substrate, and the thickness of the space is close to the diameter of the particle;

[0105] S406 , packaging the lower substrate and the upper substrate on which the display layer is formed to form an electronic paper display device.

[0106] So far, the above-mentioned electronic paper display device provided by the embodiment of the present invention...

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Abstract

The invention discloses an electronic paper displaying device and a manufacturing method thereof. The electronic paper displaying device comprises an upper substrate and a lower substrate arranged oppositely and displaying layers filled between the upper substrate and the lower substrate, the electronic displaying device is provided with a plurality of displaying units arranged in a shape of a plurality of arrays, in every displaying unit, the displaying layer comprises microgel particles of a hole-shaped structure and sensitive to an electric field, electrolyte and colored particles transferred between the hole-shaped structure of the microgel particles and the electrolyte, the upper substrate and / or the lower substrate are / is provided with an electrode structure, wherein the electronic structure provided in every displaying unit can generate an electronic field capable of controlling the swelling states of the microgel particles and enabling the colored particles to transfer between the hole-shaped structure of the microgel particles and the electrolyte, due to the fact that microgel particles can swell or deswell when the electronic field generated by the electrode structure changes to further absorb or release colored particles, and black and white, grey or color display can be achieved and display refresh rate can be adjusted due to the controlled release of the colored particles.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an electronic paper display device and a manufacturing method thereof. Background technique [0002] At present, electronic paper display devices have the same visual characteristics as paper media. With the advantages of ultra-wide viewing angle, ultra-low performance, pure reflection mode, bistable display and anti-glare, etc., they have become the new favorite of portable devices. [0003] The existing electronic paper display device includes an upper substrate and a lower substrate arranged oppositely, and a display layer filled between the upper substrate and the lower substrate. The electronic paper display device has a plurality of display units arranged in an array, and each In the display unit, the display layer includes black and white charged particles and electrolyte, the upper substrate and / or the lower substrate have an electrode structure, and the electrode struct...

Claims

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Application Information

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IPC IPC(8): G02F1/167G02F1/1343
CPCG02F1/167G02F1/1676G02F2001/1678
Inventor 隆清德
Owner BOE TECH GRP CO LTD
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