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Photosensitive resin composition and color filter comprising same

A technology of photosensitive resin and composition, applied in the field of photosensitive resin composition, can solve problems such as freedom degree limitation, and achieve the effect of improving brightness and reducing sensitivity

Active Publication Date: 2018-02-02
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Efforts have been made to improve the brightness and contrast ratio through ultrafine particle size and dispersion stabilization of pigments, but the degree of freedom in selecting colorants for the color coordinates of display devices to achieve high color purity is limited
In addition, improvements in color purity, brightness, and contrast ratio of color filters brought about by the pigment dispersion method using already developed color materials, especially pigments, have reached their limits.

Method used

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  • Photosensitive resin composition and color filter comprising same
  • Photosensitive resin composition and color filter comprising same
  • Photosensitive resin composition and color filter comprising same

Examples

Experimental program
Comparison scheme
Effect test

experiment example

[0193] Examples 1-4 and Comparative Examples 1-3 were produced by the ratio shown in following Table 1. The feeding unit of each composition is gram (g).

[0194] [Table 1]

[0195] [Table 1]

[0196]

[0197] Production of the substrate

[0198] The produced photosensitive resin composition was spin-coated (spincoated) on glass (5x5 cm), and it prebaked at 110 degreeC for 70 second, and formed a film. The distance between the substrate on which the film was formed and the photomask (photo mask) was set to 300 μm, and the entire surface of the substrate was irradiated with 30 mJ / cm using an exposure machine. 2 exposure.

[0199] Next, the exposed substrate was developed for 55 seconds with a developing solution (KOH, 0.04%), and post-baked at 230° C. for 20 minutes to prepare a substrate.

experiment example 1

[0200] Experimental example 1. Measurement of brightness

[0201] The color characteristics of the prepared substrates were confirmed using a spectrophotometer, and the luminance values ​​are shown in the following [Table 2].

experiment example 2

[0202] Experimental example 2. Measurement of heat resistance

[0203] For the above prepared substrate, the color characteristics were confirmed using a spectrophotometer, and after further heat treatment for 1 hour in a convection oven (convection oven) at 230°C, the color characteristics were confirmed again, and the ΔEab value was obtained and shown in the following [Table 2 ].

[0204] [Table 2]

[0205] [Table 2]

[0206]

[0207] As shown in the above Table 2, it can be seen that when the photosensitive resin composition of Examples 1 to 4 containing both the compound represented by the above Chemical Formula 1 and the antioxidant is used to manufacture a color filter, the brightness and heat resistance characteristics are improved. Effect.

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Abstract

The present specification relates to a photosensitive resin composition comprising a compound represented by a chemical formula 1 and an antioxidant, and a color filter containing the photosensitive resin composition, wherein the antioxidant contains a phosphate group selected from the group consisting of phosphate ester groups. And at least one of the phosphite groups as well as the hydroxyphenylgroup.

Description

technical field [0001] This specification relates to a photosensitive resin composition and a color filter containing the photosensitive resin composition. Background technique [0002] In recent years, performances characterized by high luminance and high contrast ratio have been required for color filters. In addition, one of the main purposes of developing display elements is differentiation of display element performance and improvement of productivity in the manufacturing process by improving color purity. [0003] Conventionally, pigments used as colorants for color filters exist in a color photoresist in a particle-dispersed state, so it is difficult to adjust the brightness and contrast ratio by adjusting the size and distribution of pigment particles. In the case of pigment particles, the solubility and dispersibility are poor due to aggregation in the color filter, and multiple scattering (multiple scattering) of light is caused by aggregated large particles. Sca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/004G03F7/027G03F7/033G02B5/22
CPCG02B5/223G03F7/004G03F7/027G03F7/033C07D311/82C09B1/16C09B11/04G02F1/133514G03F7/0007G03F7/028G03F7/032G03F7/105H05K3/287
Inventor 朴相均梁承秦柳璋铉李多美朴锺镐金载骏李在容李修莲
Owner LG CHEM LTD
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