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Alkali-soluble resin polymer and preparation method thereof, photosensitive resin composition and applications of alkali-soluble resin polymer and the photosensitive resin composition

A technology of alkali-soluble resin and photosensitive resin, which is applied in the field of alkali-soluble resin polymer and photosensitive resin composition, and can solve the problems such as the decrease of the flatness of the photoresist, the influence of the display effect and the disconnection.

Active Publication Date: 2018-05-08
GUAN ETERNAL MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At this time, insufficient rubbing of the horns will lead to a decrease in the image quality of the LCD (increase in black brightness and decrease in color contrast), and will also result in a decrease in the flatness of the photoresist, which will lead to a decrease in the flatness of the photoresist when making conductive glass (such as ITO) circuits. A disconnection problem occurred
In order to reduce the height of the horns, the current common method is to reduce the horns from the process. There are two typical ones. One is to coat a coating layer on the surface of the color photoresist, but this method will cause inability to Predict the problem of RGB color difference; another method is to use polishing slurry for polishing, but this method will easily lead to defects such as shadows, scratches, and residues of polishing fluid on the surface of the photoresist material after polishing, which will affect the display effect

Method used

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  • Alkali-soluble resin polymer and preparation method thereof, photosensitive resin composition and applications of alkali-soluble resin polymer and the photosensitive resin composition
  • Alkali-soluble resin polymer and preparation method thereof, photosensitive resin composition and applications of alkali-soluble resin polymer and the photosensitive resin composition
  • Alkali-soluble resin polymer and preparation method thereof, photosensitive resin composition and applications of alkali-soluble resin polymer and the photosensitive resin composition

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preparation example Construction

[0072] The preparation method of the above-mentioned color filter may include: coating the above-mentioned photosensitive resin composition on a substrate, and sequentially undergoing steps of pre-baking, exposure, development and post-baking to obtain the color filter.

[0073] The present disclosure is further illustrated by examples below, but the present disclosure is not limited thereby.

Embodiment 1

[0075] In a 500mL flask, add 18g methacrylic acid (Sinopharm Group, chemically pure), 27g benzyl methacrylate (Bailingwei, analytically pure), 30g N-phenylmaleimide (Bailingwei, analytically pure), 25g of the following formula ( 21) The compound shown in (Anaiji Chemical, analytically pure), 240g propylene glycol methyl ether acetate, 0.3ml molecular weight regulator, nitrogen protection, the system was heated to 80 ° C, under the condition of stirring, using a constant pressure dropping funnel 17g of propylene glycol methyl ether acetate solution and 15g of methacrylic acid dissolved in 1.0g of azobisisobutyronitrile were added dropwise to a three-necked flask within 30 minutes, followed by constant temperature stirring for 3 hours, the temperature was lowered to room temperature, and the solvent was removed. Alkali-soluble resin polymer B1 was obtained. The weight average molecular weight of the polymer measured by GPC is 21360, the molecular weight distribution is 1.98, and...

Embodiment 2

[0078] Adopt the method of embodiment 1, difference is, the compound of formula (21) is replaced by the following formula (22) of equivalent respectively, obtain alkali-soluble resin B2; GPC records alkali-soluble resin polymer B2 polymer weight average The molecular weight is 22050, the molecular weight distribution is 2.10, and the acid value is 114.89mgKOH / g

[0079]

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Abstract

The present invention discloses an alkali-soluble resin polymer and a preparation method thereof, a photosensitive resin composition and applications of the alkali-soluble resin polymer and the photosensitive resin composition, wherein the alkali-soluble resin polymer is a random copolymer containing a first structural unit and a second structural unit. According to the present invention, the second structural unit containing the flexible ether bond side chain is introduced into the alkali-soluble resin polymer so as to increase the flexibility of the whole resin system; and the shrinkage of the RGB three-color photoresist material prepared from the photosensitive resin composition containing the alkali-soluble resin polymer is reduced during the drying and the hard baking, such that the height of the horn-like projection substance on the overlapping position of the color photoresist material and the black matrix (BM) can be significantly reduced.

Description

technical field [0001] The present disclosure relates to the field of liquid crystal display materials, in particular to an alkali-soluble resin polymer, a preparation method thereof, a photosensitive resin composition and applications thereof. Background technique [0002] The photosensitive resin composition has various applications, including photosensitive materials for producing color filters, photosensitive materials for overcoats, column spacers, light-shielding insulating materials, and the like. [0003] With the recent increase in demand for liquid crystal displays (LCDs), there is a need for LCDs capable of realizing high-quality colors. To meet this requirement, the pigment concentration in the photosensitive material of the color filter is gradually increased with finer dispersion of the pigment particles. This increase tends to deteriorate the developing performance of the photosensitive material. In addition, in order to improve the production efficiency of ...

Claims

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Application Information

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IPC IPC(8): C08F222/40C08F220/06C08F220/18C08F212/14G03F7/027G02B5/20
CPCC08F212/14C08F220/18C08F222/40G02B5/20G03F7/027C08F220/06
Inventor 朱海龙刘永祥孙涛任雪艳
Owner GUAN ETERNAL MATERIAL TECH
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