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Display panel and manufacturing method thereof

A display panel and substrate technology, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve the problems of cathode failure, display abnormality, auxiliary electrode connection, etc., and achieve the effect of improving voltage drop and display uniformity

Active Publication Date: 2020-12-25
SHENZHEN 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

[0003] The inventors of the present application have found in long-term research and development that under the condition of poor control of the evaporation process of the luminescent layer, the auxiliary electrodes are completely covered by the luminescent layer, and the cathode cannot be connected to the auxiliary electrode, resulting in abnormal display

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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

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0014] refer to figure 1 , figure 1 It is a schematic structural view of an embodiment of a display panel provided in this application, and the display panel includes: a substrate 111 , an auxiliary electrode 112 , an anode 113 , a pixel definition layer 114 , cathode isolation columns 115 , a light emitting layer 116 and a cathode 117 .

[0015] The substrate 111 can be a glass substrate or a resin substrate; the auxiliary electrode 112 and the anode 113 are...

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Abstract

The present application discloses a display panel and a manufacturing method thereof. In the display panel, the auxiliary electrode and the anode are arranged on the substrate, the pixel definition layer covers the auxiliary electrode and the anode, and makes the anode and the auxiliary electrode partially exposed, and the cathode isolation column is arranged on the On the exposed part of the auxiliary electrode, the isolation table in the cathode isolation column has conductivity and is in contact with the auxiliary electrode, the main body of the isolation column in the cathode isolation column is arranged on the isolation table, and the light-emitting layer covers the pixel definition layer, the anode and the exposed area of ​​the auxiliary electrode. Partially, and separated by the cathode spacer; the cathode covers the luminescent layer and is separated by the cathode spacer, and the cathode is at least in contact with the spacer. Through the above method, the present application can realize effective electrical connection between the cathode and the auxiliary electrode, realize independent control of the cathode, and make the display panel display uniform.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a display panel and a manufacturing method thereof. Background technique [0002] Because Organic Light-Emitting Diode (OLED) has display characteristics and quality beyond Liquid Crystal Display (LCD), such as thinner and lighter, short response time, low driving voltage, better display color and Display viewing angle and other advantages, it has received widespread attention. In recent years, the development of OLED has been changing with each passing day. Not only can it produce curved displays, but it is also gradually developing to large sizes. However, there is a problem of voltage drop in the large size, especially for the top emission display panel, the problem of voltage drop caused by the thin cathode needs to be solved urgently, so the auxiliary electrode and cathode isolation column are made in the process to separate the cathode to achieve separate contro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L51/56
CPCH10K50/824H10K71/00
Inventor 张良芬
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD