Acid dropping device, acid dropping machine table and making method of touch display screen

A technology of dripping acid and acid solution, which is applied in the input/output process of data processing, optics, instruments, etc., can solve the problems of dripping acid diffusion, reduce production costs, improve product yield, and solve the problem of dripping acid diffusion Effect
CN107797316AInactive Publication Date: 2018-03-13KUSN INFOVISION OPTOELECTRONICS
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
KUSN INFOVISION OPTOELECTRONICS
Publication Date
2018-03-13
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses an acid dropping device. The acid dropping device is used for carrying out acid-dropping etching on a metal conducting layer, and alignment marks covered with the metal conducting layer are displayed; the acid dropping device comprises an acid dropping head, a sponge is embedded into one end of the acid dropping head, one end of the sponge is exposed out of the acid dropping head, and the exposed end of the sponge is used for being in contact with the metal conducting layer, and the metal conducting layer is etched through acid liquid in the sponge during contact. According to the acid dropping device, a needle head is changed into the sponge, the current acid dropping mode is changed into a 'seal-type' mode, the acid amount is controlled in the acid dropping process, the acid-dropping diffusion problem is effectively solved, and the good yield is increased; on the premise that a mask cannot be required to be used, etching holes are formed to enable the alignment marks to be displayed, and the making cost is greatly reduced. The invention also provides an acid dropping machine table and a making method of a touch display screen.
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Description

technical field

[0001] The invention relates to the field of display technology, in particular to an acid dripping device, an acid dripping machine and a manufacturing method of a touch screen. Background technique

[0002] When the liquid crystal panel industry manufactures touch screens with on-cell technology, after the liquid crystal panel (LCD) is assembled on the thin film transistor array substrate and the color film substrate, it is necessary to make a touch panel (Touch Panel, TP) on the color film substrate. ). In order to avoid abnormal touch function due to excessive overlap and offset between the touch panel and the liquid crystal panel, it is necessary to use alignment marks for alignment when manufacturing the first film of the touch panel. like figure 1 , is a schematic diagram of alignment marks in the liquid crystal panel in the prior art. At present, when making the first film of the touch panel, it is necessary to make alignment marks 11 in the liquid c...

Claims

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