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An organic light emitting diode display panel and a manufacturing method thereof, and a display device

A technology for light emitting diodes and display panels, which is applied in the fields of organic semiconductor devices, semiconductor/solid-state device manufacturing, semiconductor devices, etc. Effect

Active Publication Date: 2018-12-28
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides an organic light-emitting diode display panel, a manufacturing method thereof, and a display device, which are used to avoid the problem of poor brightness uniformity of the OLED display panel due to a large cathode resistance

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  • An organic light emitting diode display panel and a manufacturing method thereof, and a display device
  • An organic light emitting diode display panel and a manufacturing method thereof, and a display device
  • An organic light emitting diode display panel and a manufacturing method thereof, and a display device

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Embodiment Construction

[0040] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted. The words expressing position and direction described in the present invention are all described by taking the accompanying drawings as an example, but changes can also be made according to needs, and all changes are included in the protection scope of the present invention. The accompanying drawings of th...

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Abstract

The invention discloses an organic light emitting diode display panel and a manufacturing method thereof and a display device, which are used for avoiding the problem of poor brightness uniformity ofthe OLED display panel due to large cathode resistance. The organic light emitting diode display panel comprises a substrate; an anode and an auxiliary electrode arranged on the substrate, the anode and the auxiliary electrode being insulated from each other; a pixel definition layer disposed over the anode and the auxiliary electrode, wherein the pixel defining layer has a pixel opening area exposing the anode and a via hole exposing the auxiliary electrode, the pixel opening area causing an obtuse angle between an edge of the pixel defining layer and the anode, and the via hole causing an acute angle between an edge of the pixel defining layer and the auxiliary electrode; a light emitting layer and a cathode arranged on the pixel definition layer sequentially, wherein the cathode is electrically connected to an auxiliary electrode arranged in the via hole.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic light emitting diode display panel, a manufacturing method thereof, and a display device. Background technique [0002] Among flat panel display panels, Organic Light Emitting Display (OLED) display panels have attracted widespread attention due to their advantages such as self-illumination, fast response, wide viewing angle, high brightness, bright colors, and thinness. [0003] Generally, for top-emission OLED light-emitting devices, in order to increase the light transmittance, the cathode needs to use a thinner transparent conductive material, but the thinner transparent cathode has a large square resistance, and when the current flows through the cathode, it will generate a relatively large amount of light. Large voltage drop, therefore, the cathode voltage obtained on the pixel farther away from the power supply point is smaller, resulting in a lower display bri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/52H01L51/56
CPCH10K59/122H10K59/1201H10K2102/3026H10K71/00H10K59/80523H10K59/80522H10K59/80524H10K59/1315H10K59/00H10K50/81H10K50/824H10K50/828
Inventor 王辉锋
Owner BOE TECH GRP CO LTD