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Electrochromic display panel and electronic paper

An electrochromic and display panel technology, applied in nonlinear optics, instruments, optics, etc., can solve problems such as low dielectric strength, corrosion reaction, and influence on dielectric strength, and achieve the effect of enhancing conductivity and uniform distribution of electric field , display rich color effects

Pending Publication Date: 2020-05-08
SVG TECH GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1 Theoretically speaking, only the three basic colors of cyan (Cyan), magenta or magenta (Magenta) and yellow (Yellow) are mixed together in equal proportions to obtain black, but due to the limitation of the current manufacturing process level, the manufactured The purity is not high enough, the result of CMY addition is actually just a kind of dark red;
[0004] 2) Its response speed is slow and its production cost is high;
[0005] 3) The inhomogeneity of the applied electric field is large, which affects the dielectric strength of the dielectric;
[0006] 4) Under the same other conditions, the more uneven the electric field, the lower the dielectric strength of the dielectric, and it is easy to make other materials contact with the dielectric layer to cause corrosion reaction

Method used

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  • Electrochromic display panel and electronic paper
  • Electrochromic display panel and electronic paper
  • Electrochromic display panel and electronic paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] See Figure 8 and Figure 9 The electrochromic display panel shown in this embodiment includes a first substrate 1-1, a white reflective layer 1-2, an adhesive layer 1-21, an electrochromic pixel array 1-3, and a first substrate 1-1 arranged sequentially from bottom to top. Two substrates 1-4, the electrochromic pixel array 1-3 includes several array arrangements, independently controlled electrochromic units 1-30, and the electrochromic units 1-30 include a black structural layer 1-31 and a color structural layer 1-32. The black structural layer 1-31 includes a first transparent electrode 1-311, a first ion storage layer 1-312, a first conductive layer 1-313, a black electrochromic pixel layer 1-314 and a first transparent electrode 1-314 arranged sequentially from bottom to top. Two transparent electrodes 1-315, the first transparent electrode 1-311 are adhered on the white reflective layer 1-2 through the adhesive layer 1-21. Wherein, the black structural layer 1-...

Embodiment 2

[0048] See Figure 10 The electrochromic display panel shown in this embodiment includes a first substrate 2-1, a white reflective layer 2-2, an adhesive layer 2-21, an electrochromic pixel array 2-3, and a second substrate arranged sequentially from bottom to top. Two substrates 2-4, and the electrochromic pixel array 2-3 include several electrochromic units arranged in an array and independently controlled, and the electrochromic units include a black structural layer 2-31 and a color structural layer 2-32. The color structural layer 2-32 is adhered to the white reflective layer 2-2 through the adhesive layer 2-21, and it includes a number of vertically stacked cyan structural units 2-321, magenta structural units 2-322 and yellow structural units 2-323, the electrochromic display panel of this embodiment displays various colors except black through the color structure layer 2-31. The black structural layer 2-31 includes a first transparent electrode (not shown), a first io...

Embodiment 3

[0051] The structure of the electrochromic display panel of this embodiment is basically the same as that of Embodiment 1, the difference is that this embodiment does not set an adhesive layer, but uses a viscous white reflective layer to adhere the electrochromic pixels Arrays are simpler in structure and easier to prepare. In this embodiment, the thickness of the white reflective layer is 45 μm.

[0052] In summary: the electrochromic display panel and the electronic paper of the present invention are provided with an electrochromic pixel array between the first substrate and the second substrate, and a black structural layer and a color structural layer are arranged in the electrochromic pixel array . When the power is turned on, the black electrochromic layer becomes black, and when the power is turned off, the black electrochromic layer becomes transparent; the electrochromic display panel displays various colors except black through the color structure layer. Therefore...

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Abstract

The invention relates to an electrochromic display panel and electronic paper. The electrochromic display panel comprises a first substrate, an electrochromic pixel array and a second substrate whichare arranged in sequence. The electrochromic pixel array comprises a plurality of electrochromic units that are in array arrangement and are independently controlled; each electrochromic unit comprises a black structure layer and a color structure layer, the black structure layer comprises a first electrode, a black electrochromic pixel layer and a second electrode which are arranged on the firstsubstrate, the color structure layer comprises a plurality of cyan structure units, yellow structure units and magenta structure units which are longitudinally arranged in an overlapped mode, and thecolor structure layer is arranged on one side of the black structure layer. The electrochromic display panel and the electronic paper not only can display black, but also can display other colors, thedisplay colors are rich, and uneven surfaces are arranged on the electrodes, so that the electric field distribution between the two electrodes is more uniform, so that the conductivity effect is enhanced, the color changing effect of the color changing layer is accelerated, and the electrochromic display panel is simple in structure and easy to prepare.

Description

technical field [0001] The invention relates to an electrochromic display panel and electronic paper, belonging to the field of display technology. Background technique [0002] The current display technology can be divided into two categories: one is paper display, its main features are: display content by reflecting ambient light, easy to display in color, large viewing angle (close to 180°), and soft medium. The other type is CRT, LCD, LED and other electronic displays. Its main features are: information can be refreshed quickly, relying on the internal light of the display itself to display the content, it needs to consume more power when working, it is easy to make people tired when reading, and the medium is not soft . Electrochromism (EC) refers to the phenomenon that the optical properties of materials (reflectivity, transmittance, absorptivity, etc.) undergo stable and reversible color changes under the action of an external electric field, and the appearance is ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/155G02F1/157G02F1/153
CPCG02F1/155G02F1/157G02F1/153
Inventor 浦东林刘艳花黄文彬陈林森
Owner SVG TECH GRP CO LTD