Cover plate, display panel and manufacturing method of cover plate

A display panel and cover technology, which is applied in the direction of identification devices, instruments, coatings, etc., can solve the problems of inconsistent brightness, inconsistent reflectivity, and affecting the user's visual perception, so as to improve visual perception, improve visual effects, and improve visual perception. The effect of perception

Active Publication Date: 2021-05-11
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the inconsistent reflectance of the same light beam on the curved display panel, the user receives inconsistent light brightness reflected from the curved display panel, thereby affecting the user's visual perception.

Method used

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  • Cover plate, display panel and manufacturing method of cover plate
  • Cover plate, display panel and manufacturing method of cover plate
  • Cover plate, display panel and manufacturing method of cover plate

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0076]Experimental example 1 includes a curved cover plate, and the curved cover plate is used for a concave curved display panel. The curved cover plate includes a base 12 and two layers of anti-reflection films 13 arranged on the light-emitting surface 122 of the base 12. The first refractive index film layer 131 in each anti-reflection film 13 is made of Nb 2 o 5 (Niobium pentoxide) material, and the refractive index is the same everywhere in the curved surface parallel to the light-emitting surface 122 of the substrate 12 . The second refractive index film layer 132 is made of SiOxNy material. The second refractive index film layer 132 adjusts the ratio of nitrogen and oxygen in the SiOxNy material, so that the refractive index of the second refractive index film layer 132 in the first direction X is in a decreasing distribution from the central area to the edge area of ​​the cover plate. In some examples, the higher the oxygen content and the lower the nitrogen content ...

experiment example 2

[0086] Experimental Example 2 includes a straight cover plate, and the straight cover plate is used for a flat display panel. The flat cover plate includes a base and two layers of anti-reflection films arranged on the light-emitting surface of the base, and the first refractive index film layer in each anti-reflection film is made of Nb 2 o 5 (Niobium pentoxide) material, and the refractive index is the same everywhere in the plane parallel to the light-emitting surface of the base. The second refractive index film layer is made of SiOxNy material. The second refractive index film layer adjusts the nitrogen-oxygen ratio in the SiOxNy material, so that the refractive index of the second refractive index film layer presents a decreasing distribution from the central area to the edge area of ​​the cover plate in the length direction of the flat display panel. In some examples, the higher the oxygen content and the lower the nitrogen content in the SiOxNy material, the SiOxNy m...

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Abstract

The embodiment of the invention discloses a cover plate, a display panel and a manufacturing method of the cover plate. The cover plate provided by the embodiment of the invention is used for the display panel, and comprises a substrate which is provided with a light incident surface and a light emergent surface which are opposite to each other in the thickness direction of the substrate; and at least one antireflection film which is arranged on at least one of the light incident surface and the light emergent surface, wherein the antireflection film is provided with a first refractive index film layer and a second refractive index film layer, the refractive index of the first refractive index film layer is greater than that of the second refractive index film layer, and the first refractive index film layer and the second refractive index film layer are alternately laminated on the light incident surface and / or the light emergent surface; in the at least one antireflection film, in the thickness direction of the antireflection film, the difference value between the refractive index of the first refractive index film layer and the refractive index of the second refractive index film layer is distributed progressively or progressively from the center area to the edge area of the cover plate in at least one direction parallel to the light emergent surface. The visual impression of a user is improved, and the display effect of the display panel is improved.

Description

technical field [0001] The invention relates to the display field, in particular to a cover plate, a display panel and a method for manufacturing the cover plate. Background technique [0002] With the continuous development of display technology, people's visual requirements for display products are gradually increasing. However, due to the inconsistent reflectance of the same light beam at various places on the curved display panel, the user receives inconsistent brightness of light reflected from various places on the curved display panel, thereby affecting the user's visual perception. In other cases, since the larger the incident angle of ambient light incident on the flat display panel is, the higher the reflectivity is, so the user's visual perception at the oblique viewing angle of the flat display panel is worse than that at the normal viewing angle of the flat display panel. perception. [0003] Therefore, there is an urgent need for a cover plate, a display pane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/30G02B1/11G02B1/115
CPCG09F9/30G02B1/11G02B1/115
Inventor 顾跃凤宁春丽
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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