Bright spot repair method and color filter substrate

Abstract

The invention provides a bright pixel repair method and a color film substrate. The bright pixel repair method is applied to the color film substrate. The color film substrate comprises a substrate as well as black matrices and color resistance layers, which are arranged on the substrate in an array manner. The method comprises the following steps of performing laser emission on the color resistance layer to be repaired for many times to form a gap between the color resistance layer to be repaired and the substrate, wherein a time interval between continous two-time laser emission is larger than a preset duration; and performing granulation treatment on the black matrices adjacent to the color resistance layer to be repaired to obtain black matrix particles, and filling the gap with the black matrix particles to treat the color resistance layer to be repaired into dark spots. According to the method, as the time interval between continous two-time laser i emission s larger than the preset duration, heat of laser illuminated into the color resistance layer to be repaired and the black matrices can be effectively dissipated within the time interval, and because of gas volume cold contraction generated by organic matters of the color resistance layer to be repaired and the black matrices, the color resistance layer to be repaired is prevented from fracturing due to thermal expansion, and the maintenance quality of the color film substrate is ensured.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a bright spot repair method and a color filter substrate. Background technique [0002] With the development of liquid crystal display technology, various liquid crystal displays have been developed and used. The existing liquid crystal display mainly includes an array substrate, a color filter substrate, a liquid crystal layer and a polarizer. The liquid crystal layer is formed between the array substrate and the color filter substrate. The array substrate, the color filter substrate and the liquid crystal layer are assembled to form a liquid crystal cell, and then Subsequent processes such as polarizer coating are used to form a liquid crystal display device. [0003] In actual production, after the liquid crystal cell is formed, it is necessary to carry out display performance testing. After screening out the liquid crystal cells whose display performance does not meet the r...

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Problems solved by technology

[0004] However, when using the existing bright spot repair method to repair the liquid crystal cell, the color-resist layer and the black matrix often experience uneven heating, which leads to expansion and rupture, and the liquid crystal will penetrate into the gap between the color-resist layer and the black matrix along the crack, eventually causing the liquid crystal box repair failure

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