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Display panel, preparation method thereof and display device

A display panel and substrate substrate technology, which is applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of high failure rate, achieve the effect of ensuring product quality and solving the extremely high failure rate

Pending Publication Date: 2022-05-06
CHANGSHA HKC OPTOELECTRONICS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to propose a display panel and its preparation method and display device, by setting the first filter layer covering at least the source and drain, to solve the bright spots and dark spots of the green sub-pixels in the existing COA products The problem of extremely high failure rate during laser repair

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  • Display panel, preparation method thereof and display device
  • Display panel, preparation method thereof and display device
  • Display panel, preparation method thereof and display device

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Embodiment Construction

[0047]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Those who do not indicate the specific conditions in the examples are carried out according to the conventional conditions or the conditions suggested by the manufacturer. The reagents or instruments used were not indicated by the manufacturer, and they were all conventional products that could be purchased from the market. In addition, the meaning of "and / or" appearing in the whole text includes three parallel schemes, taking "A and / or B" as an example, including scheme A, scheme B, or schemes that both A and B satisfy. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory o...

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Abstract

The invention discloses a display panel and a preparation method thereof and a display device.The display panel is provided with a plurality of sub-pixel areas, each sub-pixel area comprises a switch element and a light filtering layer arranged on one side of the switch element, each switch element comprises a source electrode and a drain electrode, the sub-pixel areas comprise green sub-pixels, and the green sub-pixels are arranged in the corresponding sub-pixel areas. In the green sub-pixel, the light filtering layer comprises a first light filtering layer, the first light filtering layer at least covers the source electrode and the drain electrode, and the material of the first light filtering layer comprises at least one of red photoresist and blue photoresist. By arranging the first filter layer at least covering the source electrode and the drain electrode, the problem that the failure rate is extremely high when dark spot laser repair is carried out on bright spots of green sub-pixels in an existing COA product is solved.

Description

technical field [0001] The invention relates to the technical field of manufacturing liquid crystal display panels, in particular to a display panel, a preparation method thereof, and a display device. Background technique [0002] A thin film transistor liquid crystal display (TFT-LCD) is composed of an array glass substrate (Array), a color filter glass substrate (CF) and a cell of the two. The traditional vertical alignment (VA) display array substrate includes: gate signal line (GE), insulating layer (GI), amorphous silicon semiconductor layer (a-si), source and drain (SD), passivation layer formed on the substrate (PV) and pixel electrode (ITO), the color filter substrate includes: light shielding layer (BM), red, green and blue color filters (R / G / B), common electrode (C-ITO), spacer layer (PS). In order to increase the aperture ratio, a new process technology of forming a color filter layer on the array substrate (CF onArray-COA) has been developed on the basis of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362G02F1/1335
CPCG02F1/136222G02F1/133514
Inventor 李旺李荣荣
Owner CHANGSHA HKC OPTOELECTRONICS CO LTD