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Touch substrate and its preparation method, touch panel

A substrate and touch technology, which is applied in the fields of instruments, calculations, electrical digital data processing, etc., can solve the problem of high incidence of dark line defects, reduce the incidence of dark line defects, facilitate implementation, and reduce production costs.

Active Publication Date: 2021-11-05
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a touch substrate and its preparation method, and a touch panel, so as to overcome the defect of high incidence of dark line defect in the existing touch panel

Method used

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  • Touch substrate and its preparation method, touch panel
  • Touch substrate and its preparation method, touch panel
  • Touch substrate and its preparation method, touch panel

Examples

Experimental program
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Effect test

no. 1 example

[0057] Figure 2A It is a schematic structural diagram of the display area of ​​the first embodiment of the touch substrate of the present invention, Figure 2B It is a schematic structural diagram of the fan-out area of ​​the first embodiment of the touch substrate of the present invention. Such as Figure 2A As shown, the display area of ​​the touch control substrate includes: a gate electrode 11 disposed on a substrate 10, a first insulating layer 12 covering the gate electrode 11, an active layer 13 and a signal line 14 disposed on the first insulating layer 12, The source and drain electrodes 15 arranged on the active layer 13, the second insulating layer 16 covering the active layer 13, the signal line 14 and the source and drain electrodes 15, the touch electrode 17 arranged on the second insulating layer 16, covering the touch The third insulating layer 18 of the control electrode 17 and the pixel electrode 19 disposed on the third insulating layer 18 . Wherein, the...

no. 2 example

[0076] Figure 13 It is a schematic structural diagram of the second embodiment of the touch substrate of the present invention, illustrating the structure of the fan-out area. Such as Figure 13 As shown, this embodiment is a modification of the scheme of the aforementioned first embodiment, the structure of the display area is the same as that of the first embodiment, the difference is that the protective layer 20 set in the fan-out area is set on the third insulating layer 18 . Specifically, the fan-out area of ​​the touch substrate includes: the gate lead-out line 21 arranged on the substrate 10, the first insulating layer 12 covering the gate lead-out line 21, the data lead-out line 22 arranged on the first insulating layer 12, covering The second insulating layer 16 of the data lead-out line 22 , the signal lead-out line 23 disposed on the second insulating layer 16 , the third insulating layer 18 covering the signal lead-out line 23 , and the protective layer 20 dispo...

no. 3 example

[0080] Figure 14A It is a schematic structural diagram of the display area of ​​the third embodiment of the touch substrate of the present invention, Figure 14B It is a schematic structural diagram of the fan-out area of ​​the third embodiment of the touch substrate of the present invention. Such as Figure 14A and Figure 14B As shown, this embodiment is a modification of the previous embodiment, the main structure is basically the same as the previous embodiment, the difference is that the protective layer 20 of this embodiment is arranged on the third insulating layer 18, and covers the entire substrate .

[0081] In this embodiment, the display area of ​​the touch control substrate includes: a gate electrode 11 disposed on the substrate 10, a first insulating layer 12 covering the gate electrode 11, an active layer 13 and signal lines disposed on the first insulating layer 12 14. The source-drain electrodes 15 disposed on the active layer 13, the second insulating la...

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Abstract

Embodiments of the present invention provide a touch substrate, a manufacturing method thereof, and a touch panel. The touch substrate includes a display structure layer formed in the display area and a fan-out structure layer formed in the fan-out area, the fan-out structure layer includes a plurality of signal lead-out lines, and the fan-out structure layer is provided with Protective layer for lead-out wires. In the present invention, by adding a protective layer covering the signal lead-out lines in the fan-out area, even if the cutting head scratches the fan-out area during the subsequent cutting process, it will not easily cause the signal lead-out lines to be disconnected, effectively reducing the defect of dark lines The incidence of defects. The sub-area protection scheme proposed by the present invention has little improvement on the existing process, is easy to implement, and has low production costs. At the same time, it does not need to change the design and structure of the original array substrate, and the process of preparing the protective layer has little impact on the performance of the array substrate. The performance of the product is guaranteed, and it has a good application prospect.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a touch substrate, a preparation method thereof, and a touch panel. Background technique [0002] With the rapid development of display technology, touch screen panels (Touch Screen Panels) have gradually spread in people's lives. At present, the touch panels can be classified into Add on Mode, OnCell, In Cell, etc. according to the structure. Among them, the plug-in touch panel is produced separately from the touch module and the display module, and then bonded together to form a touch panel with touch function, which has disadvantages such as high production cost, low light transmittance, and thick module. . The in-cell touch panel is to embed the touch electrodes of the touch module inside the display module, combining the display and touch control into one, which not only makes the product thinner and lighter, but also lowers the cost. [0003] At present, there are three...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0412G06F3/044G06F2203/04103
Inventor 潘宗玮卢凯王彦强王丽君
Owner BOE TECH GRP CO LTD
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