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Organic Light Emitting Diode Display

A technology of light-emitting diodes and displays, which is applied in the manufacture of semiconductor devices, electric solid-state devices, and semiconductor/solid-state devices, etc., can solve the problem of cathode voltage drop affecting the brightness of display panels.

Active Publication Date: 2020-10-27
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
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Problems solved by technology

[0004] The purpose of this application is to provide an organic light emitting diode display to solve the problem that the luminous brightness of the display panel is affected by the excessive cathode voltage drop when the top-emission display panel is manufactured as a large-size display panel

Method used

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  • Organic Light Emitting Diode Display
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Embodiment Construction

[0036] 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.

[0037] see figure 1 , which is a schematic diagram of the first structure of an organic light emitting diode display according to an embodiment of the present application. The OLED display includes a substrate 10 , an auxiliary electrode, a planarization layer 11 , an anode 121 , a pixel definition layer 13 , cathode isolation columns, an organic functional layer 15 and a cathode 16 .

[0038] The substrate is a thin film transistor array substrate. The thin film transistor arr...

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Abstract

The present application provides an organic light emitting diode display. By setting a contact hole on the cathode isolation column and forming a cathode on the auxiliary electrode in the contact hole, the cathode in the contact hole is electrically connected with the auxiliary electrode, and the cathode in the contact hole passes through The third opening on the side of the cathode spacer column is connected to the cathode outside the cathode spacer column to improve the resistance voltage drop problem of the cathode in the large-size display panel, so as to solve the problem of the large-size top-emitting display panel due to the large resistance voltage drop of the cathode. The problem of luminous brightness.

Description

technical field [0001] The present application relates to the field of display technology, in particular to an organic light emitting diode display. Background technique [0002] Currently, Organic Light Emitting Diode (OLED) displays include top emission (Top Emission), bottom emission (Bottom Emission) and transparent display (Transparent Display) and other light emitting methods. Among them, the top-emitting OLED display has the advantages of high resolution and large light-emitting area, and is widely used in small-sized OLED display panels. Since large-size display panels tend to increase resolution, top-emission display panels have become an important research direction for large-size display panels. When the top-emitting display panel is manufactured as a large-size display panel, the cathode material is required to be transparent and the thickness of the cathode should not be too large, so as to ensure the light output rate of the OLED display panel. Due to the thi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/52
CPCH10K59/1315H10K50/824
Inventor 聂诚磊
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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