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Coa-type array substrate and manufacturing method thereof

A technology of an array substrate and a manufacturing method, which are applied in the field of COA-type array substrates and the manufacturing thereof, can solve the problems of complex topography and structure of the array substrate, aggravating the concave bowl shape of color resistance units, etc., and achieve the improvement of color performance and uniformity of chromaticity. , the effect of balancing the chroma

Active Publication Date: 2021-01-26
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex terrain structure of the array substrate under the color filter, the problem of the concave bowl shape of the color filter color resistance unit is exacerbated.

Method used

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  • Coa-type array substrate and manufacturing method thereof
  • Coa-type array substrate and manufacturing method thereof
  • Coa-type array substrate and manufacturing method thereof

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Embodiment Construction

[0029] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0030] see figure 1 , the manufacturing method of COA type array substrate of the present invention, comprises the following steps:

[0031] Step S1, please refer to figure 2 , a base substrate 10 is provided, a TFT layer 20 is formed on the base substrate 10; a color photoresist layer 30 is formed on the TFT layer 20; the color photoresist layer 30 includes a plurality of adjacent first color The resistance unit 31, the second color resistance unit 32 and the third color resistance unit 33, the top surface of the plurality of third color resistance units 33 is recessed on the bottom surface;

[0032] Step S2, please refer to image 3 , forming a flat layer 40 on the color photoresist layer 30; the flat layer 40 is provided with a circle o...

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Abstract

The invention provides a COA type array substrate and a manufacturing method thereof. The manufacturing method of the COA-type array substrate is to form a flat layer on a plurality of third color-resist units whose top faces are recessed on the bottom; the flat layer is provided with a ring of raised portions corresponding to the edge of the top surface of each third color-resist unit, The film thickness of the flat layer corresponding to the thicker film thickness of the third color resistance unit is also thicker, reducing the transmittance of the thicker film thickness of the third color resistance unit, so that the thicker film thickness of the third color resistance unit The transmittance of the area is consistent with that of other areas to balance the chromaticity, achieve uniform chromaticity, and improve the color performance of the COA array substrate.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a COA array substrate and a manufacturing method thereof. Background technique [0002] Thin Film Transistor (TFT) is the main driving element in current Liquid Crystal Display (LCD) and Active Matrix Organic Light-Emitting Diode (AMOLED). It is related to the display performance of the flat panel display device. [0003] Most of the liquid crystal displays currently on the market are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to pour liquid crystal molecules between the thin film transistor substrate (Thin FilmTransistor Array Substrate, TFT Array Substrate) and the color filter (Color Filter, CF) substrate, and apply pixel voltage on the two substrates respectively. and the common voltage, through the electric field formed between the pixel voltag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1362G02F1/1335
CPCG02F1/133516G02F1/1362G02F1/136222
Inventor 宋江江
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD