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Rework liquid medicine, preparation method thereof, and rework device

A technology of heavy industry and liquid medicine, which is applied in the direction of photomechanical equipment, photosensitive material processing, photoplate making process of pattern surface, etc., can solve the problems of poor heavy industry effect and incomplete peeling of color filter layer, etc., to achieve thorough peeling and improve The effect of heavy industry and the effect of simple process

Pending Publication Date: 2019-08-23
CHENGDU ZHONGDIAN PANDA DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the physical peeling of the color filter layer in the above-mentioned reworking steps, the problem of incomplete peeling of the color filter layer and poor rework effect is prone to occur.

Method used

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  • Rework liquid medicine, preparation method thereof, and rework device
  • Rework liquid medicine, preparation method thereof, and rework device
  • Rework liquid medicine, preparation method thereof, and rework device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 of the present invention provides a heavy-duty medicinal liquid, which includes the following components in parts by weight:

[0042] Deionized water: 20-30 parts;

[0043] Tetramethylammonium hydroxide: 3 to 10 parts;

[0044] Dimethyl sulfoxide: 30-45 parts;

[0045] N-methylpyrrolidone: 1 to 5 parts;

[0046] Diethylene glycol-methyl ether: 10-20 parts;

[0047] Hydroxylamine: 1 to 5 parts.

[0048] The rework chemical solution is used to remove the color resist material layer (color filter layer) in the color filter substrate or COA substrate. Specifically, the color-resisting material layer, PS (Photo Spacer, photosensitive spacer), BM (BlackMatrix, black matrix) on the substrate are dissolved and peeled off by using a heavy industrial chemical solution. Since the physical peeling in the prior art is changed to chemical Dissolution and peeling, so the peeling is more thorough, and the rework effect is good.

[0049] Among them, deionized water (D...

Embodiment 2

[0094] This embodiment provides a method for preparing a heavy chemical solution, which is used to prepare the heavy chemical solution described in Example 1. The method includes: adding components other than deionized water into deionized water to obtain a heavy chemical solution.

[0095] Specifically, tetramethylammonium hydroxide, dimethyl sulfoxide, N-methylpyrrolidone, diethylene glycol-methyl ether, and hydroxylamine can be added to deionized water and mixed uniformly to prepare a heavy-duty medicinal solution. Certainly, in the case that the heavy industrial chemical liquid also includes other components, other components besides the above-mentioned components can also be added into the deionized water and mixed uniformly.

[0096] Among them, adding tetramethylammonium hydroxide, dimethylsulfoxide, N-methylpyrrolidone, diethylene glycol-methyl ether, and hydroxylamine into deionized water specifically refers to adding tetramethylammonium hydroxide, dimethylsulfoxide, ...

Embodiment 3

[0114] figure 1 The structure schematic diagram of the heavy industry device provided for the present invention, as figure 1 As shown, this embodiment provides a heavy industrial device, and the heavy industrial liquid used in the heavy industrial device of this embodiment is the heavy industrial chemical liquid described in the first embodiment, which is prepared by the method described in the second embodiment. The specific components and specific preparation methods of the heavy industrial liquid have been described in detail in Example 1 and Example 2, and will not be repeated here.

[0115] The rework device provided in this embodiment includes: a reaction chamber 1, a substrate carrying assembly 2 and a shower head 3 arranged inside the reaction chamber 1, the substrate carrying assembly 2 is used to place the substrate to be reworked, so the substrate to be reworked 4 Placed on the substrate carrier assembly 2, the shower head 3 is arranged above the substrate carrier ...

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Abstract

The invention provides a rework liquid medicine, a preparation method thereof, and a rework device. The rework liquid medicine contains the following components in parts by weight: 20-30 parts of deionized water; 3-10 parts of tetramethylammonium hydroxide; 30-45 parts of dimethyl sulfoxide; 1-5 parts of N-methyl pyrrolidone; 10-20 parts of diethylene glycol-methyl ether; and 1-5 parts of hydroxylamine. The substrate reworking effect can be improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a heavy industrial liquid, a preparation method thereof, and a heavy industrial device. Background technique [0002] At present, liquid crystal display technology has become the mainstream of display technology. Liquid Crystal Display (LCD) has many advantages such as thin body, power saving, and no radiation, and has been widely used in people's daily life. [0003] However, in the manufacturing process of liquid crystal display panels, defects such as foreign matter adhered to each film layer or the pattern size of the exposed film layer does not meet the standard often occur between the processes, resulting in problems such as peeling of the film layer or abnormal display in the subsequent process. Therefore, in order to avoid the occurrence of the above-mentioned problems, it is necessary to perform a rework step on such a substrate with defects on the surface, and put the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/42G02F1/13
CPCG03F7/426G03F7/425G02F1/1303
Inventor 刘闽李广圣池田昌隆张勇史海洋钮磊李望李良王彬宇
Owner CHENGDU ZHONGDIAN PANDA DISPLAY TECH CO LTD
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