Electronic paper display panel, preparation method of electronic paper display panel and electronic paper equipment

By setting up a plasma screening net and supporting microspheres in the plasma display cavity of the electronic paper display panel, limiting the movement of the first and second types of particles, the brightness and particle aggregation problems in the existing color electronic paper technology are solved, and higher brightness and more uniform display effects are achieved.

CN119596613APending Publication Date: 2025-03-11CHONGQING HKC OPTOELECTRONICS TECH CO LTD +1
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Patent Information

Application Number
CN202411999902.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-03-11

AI Technical Summary

Technical Problem

The existing color electronic paper technology limits the color brightness. The color film structure filters out 70% of the light. The cup walls and capsule walls of micro cups and microcapsules technology reduce the light reflectivity, resulting in lower brightness. In addition, there are more particle collisions and aggregation phenomena in plasma technology, affecting the display effect.

Method used

By setting up a plasma screening net, supporting microspheres and plasma in the plasma display cavity of the electronic paper display panel, the grid aperture of the plasma screening net is smaller than the size of the first type of particles and larger than the size of the second type of particles, limiting the first type of particles on one side of the plasma screening net, and the second type of particles can pass freely, thereby reducing particle collision and aggregation phenomena and improving light absorption efficiency.

Benefits of technology

The possibility of particle collision and aggregation is achieved, the light absorption efficiency is improved, the brightness and display effect of electronic paper are improved, and the mechanical strength of the display panel is improved by the combination of support microspheres and plasma screening network.

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Abstract

The embodiment of the invention relates to an electronic paper display panel, an electronic paper display panel preparation method and electronic paper equipment. The electronic paper display panel comprises an upper substrate, a lower substrate, an optical filter layer, a transparent electrode layer and a pixel electrode layer, an optical filter layer is arranged on the surface, opposite to the lower substrate, of the upper substrate, and a transparent electrode layer, a plasma display cavity and a pixel electrode layer are sequentially arranged between the optical filter layer and the lower substrate; a plasma screening net, supporting microspheres and plasma are arranged in the plasma display cavity, the supporting microspheres make contact with the upper surface and the lower surface of the plasma display cavity, and the supporting microspheres are connected with the plasma screening net; the plasma comprises a first type of particles and a second type of particles, and the mesh aperture of the plasma screening net is smaller than the size of the first type of particles and larger than the size of the second type of particles. According to the embodiment of the invention, the possibility that two kinds of particles are gathered is reduced, the light absorption efficiency is improved, the plasma screening net also plays a role in supporting the plasma display cavity, and the mechanical strength of the panel is improved.
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Citation Information

Cited By

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