Method for making color filter layer
A technology of color filter layer and manufacturing method, which is applied in the fields of optics, nonlinear optics, instruments, etc., can solve problems such as poor fluidity of liquid crystal molecules, influence on display effect, and color difference when pressed, so as to reduce thickness, save cost, and angle The effect of stage difference optimization
Active Publication Date: 2019-07-02
INESA DISPLAY MATERIALS
View PDF12 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the production process of traditional color filter substrates, in the overlapping (overlapping) areas of each color filter layer and black matrix layer, the height of the laminated part is higher than that of other areas, resulting in a large angular difference. Such a difference in angular segment will deteriorate the fluidity of the liquid crystal molecules that are in contact with the alignment layer, which will cause problems such as pressing color difference, which will affect the display effect.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] Please refer to figure 1 , if the existing common photomask is directly used for the formation process of the color filter layer, the corresponding steps can be referred to Figure 1 to Figure 3 shown.
[0023] A black matrix layer 110 is formed on the transparent substrate 100, the black matrix layer 110 has a plurality of openings, figure 1 Only one of the openings 111 is shown as a representative.
[0024] After that, refer to figure 1 and figure 2 ,exist figure 1 The first color filter material layer 120 is formed in the opening 111 in the center, and then the first color filter material layer 120 is exposed with a photomask 130 .
[0025] After that, refer to figure 2 and image 3 The exposed first color filter material layer 120 is further subjected to steps such as developing and baking, so as to become the first color filter layer 120z. Thereafter, the same process as above is repeated, thereby forming the second color filter layer 140z and the thir...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| Width | aaaaa | aaaaa |
| Maximum thickness | aaaaa | aaaaa |
Login to View More
Abstract
Provided in the invention is a method for making a color filter layer. The method comprises: forming a black matrix layer having a plurality of openings on a transparent substrate; forming first colorphotoresist material layers in a first number of openings and filling the openings by the first color photoresist material layers having overlapped parts covering the black matrix layer; carrying outexposure on the first color photoresist material layers by using a first photomask having a polygonal hole formed right above the opening and a transmittance gradation zone at the edge of at least one side of the hole as a mask; carrying out development on the first color photoresist material layers after exposure and enabling the overlapped parts to have shapes with undermining structures; baking the first color photoresist material layers after development and enabling the overlapped parts with the undermining structures to collapse, thereby reducing the final thickness of the overlapped parts to form a first color filter layer. With the making method, the quality of the formed color filter layer is improved.
Description
technical field [0001] The invention relates to the field of liquid crystal display, in particular to a manufacturing method of a color filter layer. Background technique [0002] A liquid crystal display (LCD) typically has a color filter substrate. Taking the color filter substrate in TFT (Thin Film Transistor)-LCD as an example, the current color filter substrate for liquid crystal display is mainly composed of transparent glass substrate, black matrix layer (BM layer) and color photoresist layer (RGB layer) and other structures. . The three primary colors of red (R), green (G) and blue (B) of the color filter substrate are arranged in a certain pattern, and are connected with the sub-pixels (one pixel consists of three sub-pixels) on the array substrate (usually used to make corresponding thin film transistors). Pixel composition) one-to-one correspondence. The white light emitted by the LCD backlight passes through the color filter substrate to form light of various ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G02F1/1335
CPCG02F1/133512G02F1/133514G02F1/133516
Inventor 纪荣昌许雅菁于海涛张莉王红光
Owner INESA DISPLAY MATERIALS