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Mending method and production method of colorful filtering substrate

A technology of color filter substrate and manufacturing method, which is applied in the field of repair, can solve problems such as increased production costs, failure to ship, scrapped glass substrates, etc., and achieve the effect of improving the production pass rate

Active Publication Date: 2009-07-08
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Mending method and production method of colorful filtering substrate
  • Mending method and production method of colorful filtering substrate
  • Mending method and production method of colorful filtering substrate

Examples

Experimental program
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no. 1 example

[0033] 1A to 1E are schematic flow charts of the repair method of the first embodiment of the present invention, and Figure 2A ~ Figure 2B It is a schematic side view of an ellipsoid in this embodiment. First, please refer to FIG. 1A , the repairing method of this embodiment is suitable for repairing the bubble defect B on the surface 100 a of the glass substrate 100 . Before repairing, firstly, it is necessary to estimate the depth H of the depression caused by the bubble defect B on the surface 100 a of the glass substrate 100 . In the present invention, there are many ways to calculate the depth H of the depression. In this embodiment, since the bubble defect B can be approximately a semi-ellipsoid depression, as shown in FIG. 1A, the present embodiment The sag depth H caused by the bubble defect B can be calculated by using the ellipsoid equation. The following will match Figure 2A and Figure 2B The method of estimating the depth H of the dent will be described.

[...

no. 2 example

[0040] Figure 3A ~ Figure 3E It is a schematic diagram of the manufacturing method of the color filter substrate according to the second embodiment of the present invention. Please refer to Figure 3A Firstly, a glass substrate 300 is provided, and it is determined whether there is a bubble defect B on a surface 300 a of the glass substrate 300 .

[0041] Next, before repairing, it is necessary to estimate the depth H of the depression caused by the bubble defect B. In the present invention, there are many ways to calculate the depth H of the depression. In this embodiment, since the bubble defect B can be roughly a semi-ellipsoid depression, the present embodiment can use the ellipsoid equation to calculate the result of the bubble defect B. The depth H of the depression. The following will match Figure 2A and Figure 2B The method of estimating the depth H of the dent will be described.

[0042] Please refer to Figure 3A and Figure 2A ~ Figure 2B , similar to the ...

no. 3 example

[0049] Figure 4A ~ Figure 4D It is a schematic diagram of the manufacturing method of the color filter substrate according to the third embodiment of the present invention. Please refer to Figure 4A Firstly, a glass substrate 400 is provided, and a color filter layer 420 is formed on the glass substrate 400 . In detail, the color filter layer 420 may include a red filter film 420a, a green filter film 420b, and a blue filter film 420c. In this embodiment, the color filter layer 420 may further include a black matrix 420d.

[0050] After that, it is determined whether there is a depression C caused by a bubble defect B on a surface 400 a of the glass substrate 400 in the color filter layer 420 . In detail, in this embodiment, the depression C caused by the bubble defect B is located on the glass substrate 400 corresponding to the red filter film 420a, as shown in Figure 4A shown.

[0051] Next, please refer to Figure 4B , removing part of the color filter layer 420 co...

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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 reduce the 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 bubble defect 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 of the 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 ...

Claims

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Application Information

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IPC IPC(8): G02F1/13G02F1/1335
Inventor 吴佳恩连文献吴家缚
Owner AU OPTRONICS CORP
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