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A kind of color filter and its preparation method and display motherboard

A color filter and color filter film technology, applied in the direction of the filter, can solve the problems of large pixel thickness and poor display, and achieve the effect of reducing the accumulation of film layers

Inactive Publication Date: 2017-06-09
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims at the problem that the pixel thickness of the small-sized products in the existing display motherboard is too large, which may easily cause poor display, and provides a color filter and its preparation method and a display motherboard

Method used

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  • A kind of color filter and its preparation method and display motherboard
  • A kind of color filter and its preparation method and display motherboard
  • A kind of color filter and its preparation method and display motherboard

Examples

Experimental program
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Effect test

Embodiment 1

[0028] This embodiment provides a color filter, including a substrate, a black matrix arranged on the substrate, the area on the substrate not covered by the black matrix forms a sub-pixel opening area, and the sub-pixel opening area is provided with A color filter film, the color filter includes at least two sizes of sub-pixel opening areas, wherein the color filter film of a partial color in the small-size pixel opening area is provided with at least one groove on the surface away from the substrate.

[0029] In the color filter of this embodiment, at least one groove is provided on the surface of the color filter film of part of the color in the small-sized pixel opening area away from the substrate, so as to reduce the accumulation of film layers caused by surface tension and realize the display motherboard. Large and small products of different sizes have the same final film thickness of each layer, thus effectively solving the problem that the final actual pixel thickness...

Embodiment 2

[0031] This embodiment provides a color filter, such as image 3 , Figure 4 As shown, it includes a substrate, a black matrix 4 arranged on the substrate, the area not covered by the black matrix 4 on the substrate forms a sub-pixel opening area, and the sub-pixel opening area is provided with a color filter film, so The color filter includes at least two sizes of sub-pixel opening areas, wherein, at least one groove is provided on the surface of the color filter film of a partial color in the small-size pixel opening area away from the substrate.

[0032] That is to say, at least one groove is provided on the surface of the color filter film of part of the color in the small-sized pixel opening area away from the substrate, so as to reduce the accumulation of film layers caused by surface tension and realize the display of products with different sizes of large and small motherboards. Finally, the film thickness of each layer is consistent, thereby effectively solving the p...

Embodiment 6

[0051] This embodiment provides a method for preparing the color filter of Embodiment 2, the method includes the step of forming grooves on the surface of the color filter film of a partial color in the small-sized pixel opening area away from the substrate.

[0052] Preferably, the color filter film is formed by a photolithography process.

[0053] That is to say, the color filter film is coated on the whole layer first, and then the pattern is completed using a mask plate. Take the formation of the third color filter film B as an example for illustration (at this time, the first color filter film R and the second color filter film G have been completed), as image 3 As shown, after R and G are completed, the entire layer of B is coated, and then the B pixels other than the opening area of ​​the B pixel are etched away to form a B pixel.

[0054] Preferably, the method specifically includes the following steps:

[0055] forming a first color filter film;

[0056] forming a...

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Abstract

The invention provides a color filter, a manufacturing method thereof and a display mother board, which belongs to the technical field of display. In the color filter, on the surface, far away from a substrate, of a color filter film with a different color in a small-size pixel opening area is provided with at least one groove, film layer accumulation caused by surface tension is reduced, effects that a product can finally get a consistent film layer thickness when the display mother board size is different, and the problem of poor display caused as the final actual pixel thickness of a product with a small size is over large can be effectively solved. The color filter of the invention can be applied to various display panels, and particularly display panels with different sizes cut by the display motherboard in a production line.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a color filter, a preparation method thereof and a display motherboard. Background technique [0002] With the development of display technology, people's demand for terminal products is getting higher and higher, and the requirements for types and models are also diverse. At present, when the display panel is produced by the assembly line, such as figure 1 As shown, generally, the display motherboard 1 with a complete layer structure is formed first, and then the display motherboard is cut to obtain individual display panels. In order to improve the utilization rate of raw materials, the large-size product 2 is usually equipped with the small-size product 3. During the production process of the display motherboard 1, two products of different sizes are often formed in the same process, which saves process steps and reduces costs. [0003] The inventor finds that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/20
CPCG02B5/20
Inventor 杨同华
Owner BOE TECH GRP CO LTD
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