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Oriented and flattened material composition, display device and display color adjusting method

一种材料组合物、取向材料的技术，应用在取向材料组合物领域，能够解决颜色范围窄、色域不满足客户需求、液晶显示装置厂家可操作性小等问题

Inactive Publication Date: 2014-12-17
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are two main ways of adjusting the color of the liquid crystal display device: first, to change the design of the liquid crystal display device, there are two main methods, (1) three kinds of photoresists of red, green and blue in the color film substrate manufacturing process Adjust the thickness of the photoresist, or further adjust the pigment components of the above three colors to change the display color, but changing the thickness of the red, green and blue photoresists will cause the color gamut to not meet customer needs, and adjust the pigment components of the three colors. It is relatively complicated, and the operability is small for liquid crystal display device manufacturers. (2) Change the cell thickness of the liquid crystal display device. Although changing the cell thickness of the liquid crystal display device may also achieve the purpose of adjusting the display color, but for a product that has been designed Changing the thickness of the box will cause optical properties such as transmittance, response time, and viewing angle to fail to meet customer needs
Second, changing the design of the LED backlight is mainly to adjust the color block of the LED lamp, or further adjust the ratio of the fluorescent substance in the LED to meet the color requirements, but the adjustable color range of this method is usually relatively narrow
However, this method requires an additional vapor deposition process after the liquid crystal display device is manufactured, and the center point of the film made by the vapor deposition method is thick, and the periphery is thin, and the adhesion of the film layer on the substrate is weak and easy to fall off, which eventually leads to the production of The color of the liquid crystal display device is uneven

Method used

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  • Oriented and flattened material composition, display device and display color adjusting method
  • Oriented and flattened material composition, display device and display color adjusting method
  • Oriented and flattened material composition, display device and display color adjusting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] 15% butyl cellosolve and 5% polyimide resin are dissolved in 60% N-methyl-2-pyrrolidone solvent, and 20% R is the spiropyran of general formula 1 wherein nitro The quasi-compound is used as an organic additive, and the components are fully stirred until the components are uniformly mixed, thereby preparing the alignment material composition I.

[0068] like figure 2 As shown, in order to improve the yellowish phenomenon of the display color described in Comparative Example 1, a liquid crystal display device was prepared in the same method as Comparative Example 1, except that the array substrate 2 and the color filter substrate 6 were coated with Alignment material composition 1 of organic additive 7 (R is a spiropyran compound of general formula 1 in which nitro) is sensitive to ultraviolet light forms alignment material layer 3 . Then, the alignment material layer 3 is irradiated with 365 nm ultraviolet light 8 for 60 seconds, and the alignment material layer 3 is t...

Embodiment 2

[0075] Dissolve 20% butyl cellosolve and 5% polyimide resin in 65% N-methyl-2-pyrrolidone solvent, add 10% salicylaldehyde anthranilic acid Schiff base and Cu + As an organic additive, the complex was fully stirred until the components were evenly mixed, thereby preparing the alignment material composition II.

[0076] like Figure 4 As shown, in order to improve the bluishness of the display color described in Comparative Example 2, a liquid crystal display device was prepared in the same manner as Comparative Example 2, except that the array substrate 2 and the color filter substrate 6 were coated with UV-sensitive organic additive 10 (salicylaldehyde anthranilic acid Schiff base and Cu + The alignment material composition II of the complex) to form the alignment material layer 3. The alignment material layer 3 is then irradiated with 365 nm ultraviolet light 8 for 45 seconds, and the alignment material layer 3 is transformed into a yellowish alignment layer 3 (x: 0.37, y:...

Embodiment 3

[0079] 18% butyl cellosolve and 5% polyimide resin are dissolved in 65% N-methyl-2-pyrrolidone solvent, 12% dithiophene perfluorocyclopentene is added thereto as organic additive, Thoroughly stir until all the components are uniformly mixed, thus preparing alignment material composition III.

[0080] like Figure 4 As shown, in order to improve the bluishness of the display color described in Comparative Example 2, a liquid crystal display device was prepared in the same manner as Comparative Example 2, except that the array substrate 2 and the color filter substrate 6 were coated with The alignment material composition III of the organic additive 12 (dithiophene perfluorocyclopentene) sensitive to ultraviolet light forms the alignment material layer 3 . The alignment material layer 3 is then irradiated with 365 nm ultraviolet light 8 for 90 seconds, and the alignment material layer 3 is converted into a yellowish alignment layer 3 (x: 0.36, y: 0.37). This is because the dit...

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PUM

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Abstract

Disclosed are an alignment material composition, a planarisation material composition, a liquid crystal display device, and a method for adjusting the display colour of the liquid crystal display device. The alignment material composition or planarisation material composition respectively comprises 0.5-20wt% of an organic additive, and the organic additive is selected from one or more of a spiropyran compound, a Schiff base compound, and a heterocyclic diarylethene compound. Adding the above-mentioned organic additive to the alignment layer or planarisation layer of a liquid crystal display device enables adjustment of the display colour in a relatively large colour range without influencing other display performances of the liquid crystal display device.

Description

technical field [0001] The invention relates to an alignment material composition, a planarization material composition, a liquid crystal display device and a method for adjusting the display color of the liquid crystal display device. Background technique [0002] A liquid crystal display (Liquid Crystal Display, LCD) has become a mainstream product among flat panel displays due to its small size, low power consumption, and no radiation. A liquid crystal display device is an important component of a liquid crystal display, including a color filter substrate, an array substrate, and a liquid crystal layer between the two substrates. At present, most liquid crystal displays use light-emitting diodes (Light Emitting Diode, LED) as the backlight source, but the white light provided by the LED is usually not perfect white light. The white light of the module (including the liquid crystal display device and the backlight module) tends to be yellowish. In order to meet the color...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/56G02F1/1337G02F1/1333
CPCC09K19/56C08K5/06C08K5/3417G02F1/133723G02F1/133784G02F1/133788
Inventor 向西林准焕石博
Owner BOE TECH GRP CO LTD
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