Mending method and production method of colorful filtering substrate

Abstract

The invention relates to a repairing method and a method for manufacturing a color filter substrate. The repairing method is suitable for repairing bubble defect on the surface of a glass substrate; the repairing method comprises the following steps: firstly, the sunken depth caused by the bubble defect is reckoned; and secondly, a repairing material is filled in the bubble defect so as to reducethe influence of the bubble defect on the surface planeness. The method for manufacturing the color filter substrate comprises that: the glass substrate is provided; whether the bubble defect is on the surface of the glass substrate is judged; the sunken depth caused by the bubble defect is reckoned; the repairing material is filled in the bubble defect so as to reduce the influence of the bubbledefect on the surface planeness; a color filter layer is formed on the glass substrate; and a common electrode is formed on the color filter layer. The repairing method can be applied to a process ofthe color filter substrate so as to increase the manufacturing qualification rate of the color filter substrate.

Description

technical field [0001] The invention relates to a repairing method, and in particular to a repairing method for bubble defects of a glass substrate. Background technique [0002] Generally speaking, a liquid crystal display panel is composed of an active element array substrate, a color filter substrate, and a liquid crystal layer disposed between the two substrates. In addition, the aforesaid two substrates are usually adhered by frame glue, and the liquid crystal is sealed therebetween. Generally speaking, the active element array substrate and the color filter substrate are mostly made of glass substrates. Due to the limitations of the process technology itself, the generation of bubble defects is quite unavoidable in the production process of glass substrates. Bubble defects refer to that during the production of glass substrates, due to factors such as materials and process conditions, bubbles often occur on the glass surface and cause defects, and these defects will ...

AI Technical Summary

Problems solved by technology

Bubble defect means that during the production of glass substrates, due to factors such as materials and process conditions, bubbles often occur on the glass surface and cause defects, and these defects will affect the manufacturing pass rate of active element array substrates and color filter substrates

In addition, in the liquid crystal display panel stage, these glass substrates with bubble defects will directly affect the cell gap and the uniformity of the liquid crystal thickness, and then cause defects (such as bright or dark spots) in the liquid crystal display panel.

In addition, in the liquid crystal display panel, once the defect points caused by bubble defects are detected too much, the liquid crystal display panel will be downgraded (downgrade), and even cannot be shipped, so the bubble defects in the glass substrate will reduce the subsequent process. pass rate, resulting in an increase in production costs

[0003] In the glass substrate stage, if the number of bubble defects exceeds a critical value, the batch of glass substrates will be downgraded and sold as inferior products; if the number of bubble defects exceeds an acceptable range, the batch of glass substrates will be It will not be sold to customers, and the glass substrate manufacturers usually scrap these glass substrates. Invisibly, the cost burden caused by bubble defects will be passed on to customers

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