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Display panel and manufacturing method thereof

A technology for a display panel and a manufacturing method, which is applied in the directions of electrical components, electrical solid-state devices, circuits, etc., can solve the problems such as the complex preparation process of the undercut structure, and achieve the effects of improving the IRDrop problem, reducing the cathode resistance and high resolution.

Active Publication Date: 2022-03-11
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
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Problems solved by technology

[0005] The embodiment of the present application provides a display panel and its manufacturing method, so as to solve the problem of complex preparation process of the undercut structure in the manufacturing process of the existing display panel

Method used

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  • Display panel and manufacturing method thereof
  • Display panel and manufacturing method thereof
  • Display panel and manufacturing method thereof

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Embodiment Construction

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0047] Embodiments of the present application provide a display panel and a manufacturing method thereof, so as to solve the problem of complex preparation process of the undercut structure in the existing display panel manufacturing method. It will be described below in conjunction with the accompanying drawings.

[0048] The manufacturing method of the display panel provided by the embodiment of the present application can be applied to the preparation of a display panel. For ...

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Abstract

The invention provides a display panel and a manufacturing method thereof. In the method, an anode composite layer comprises a first anode material layer and a second anode material layer; as the etching speed of the etching agent on the first anode material layer is smaller than the etching speed of the etching agent on the second anode material layer, the edge of the formed anode pattern, the first anode material layer protrudes outwards relative to the side of the second anode material layer, and a suspended part is formed on the first anode material layer corresponding to the outwards-protruding part of the hollow-out area. And an undercut structure required by cathode lap joint is arranged below the cathode lap joint structure. According to the method, the undercut structure can be formed while the anode pattern is formed, the photomask manufacturing process is not increased, and the process is simpler.

Description

technical field [0001] The present application belongs to the field of display technology, and in particular relates to a display panel and a manufacturing method thereof. Background technique [0002] Display technology is constantly changing, and display devices are developing towards multi-function and digitalization. Large size, high resolution, high color saturation, energy saving, high brightness, flexibility, transparency, etc. have gradually become the mainstream trend of technology development. OLED (including QLED) can finally achieve the above extreme performance; OLED current drive is different from LCD voltage drive, Therefore, in OLED driving, IR Drop (voltage drop phenomenon) seriously affects the display effect, especially in large-size displays. It is one of the problems that need to be overcome in large-size OLED displays. [0003] One of the currently commonly used improvement methods is to form an undercut structure on the TFT substrate, and use the cath...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32
CPCH10K59/123H10K59/1213H10K59/122
Inventor 胡泽虎
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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