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Touch display device and manufacturing method thereof

A technology of a touch display device and a manufacturing method, which is applied to static indicators, instruments, and electrical digital data processing, and can solve problems such as electrochemical corrosion and panel failure, and achieve enhanced lamination, improved reliability, and increased film layers height effect

Active Publication Date: 2020-09-25
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the second pad layer 2 is subsequently formed on the first pad layer 1, there is a gap between the second pad layer 2 and the first pad layer 1. After the panel has been working for a long time, it is very easy to cause electrochemical damage at this position. Corrosion, which causes the panel to fail

Method used

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  • Touch display device and manufacturing method thereof
  • Touch display device and manufacturing method thereof
  • Touch display device and manufacturing method thereof

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solution in the application with reference to the accompanying drawings in the implementation manner of the application. Apparently, the described implementations are only some of the implementations of this application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by those skilled in the art without creative efforts shall fall within the scope of protection of this application.

[0033] Please refer to figure 2 , the first embodiment of the present application provides a touch display device 100 . The touch display device 100 includes a display module 10 and a touch module 20 arranged in layers. The display module 10 includes an array substrate 11 , a plurality of organic light emitting units 12 disposed on the array substrate 11 , and a thin film encapsulation layer 13 for encapsulating the plurality of organic light emitting units...

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Abstract

The invention provides a touch display device. The touch display device comprises a display module and a touch module which are arranged in a stacked mode. The display module comprises a plurality oforganic light-emitting units. The touch display device comprises a plurality of welding pads located in a peripheral area. The welding pad comprises a first welding pad pattern, a second welding pad pattern and a third welding pad pattern which are stacked in sequence. The second welding pad pattern is arranged around the edge of the first welding pad pattern and covers the side wall of the firstwelding pad pattern; the first welding pad pattern and a source / drain electrode of the display module are located on the same layer, the second welding pad pattern and an anode of the organic light-emitting unit are located on the same layer, and the third welding pad pattern and a touch pattern of the touch module are located on the same layer.

Description

technical field [0001] The present application relates to the field of display touch control, in particular to a touch display device and a manufacturing method thereof. Background technique [0002] A known organic light-emitting diode On-cell touch display (OLED On-cell Touch) technology, also known as DOT technology (Direct On-Cell Touch), through thin-film encapsulation (Thin-FilmEncapsulation, TFE) of the OLED panel Directly use low temperature process (temperature less than or equal to 90 ℃) to make the touch structure, so as to realize the integration of display and touch. In the pad structure of the touch display device, such as figure 1 As shown, the first pad layer 1 is formed of the material of the source-drain metal layer. In order to achieve a better bonding effect, the surface and sides of the first pad layer 1 are exposed. When etching the anode layer of the OLED display panel, the source-drain metal layer will be over-etched, so that a cavity 1 a appears on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044G09G3/3208
CPCG06F3/0412G06F3/044G09G3/3208
Inventor 杨佳瑶张启沛
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD