Organic electroluminescence display panel, preparation method and display device

An electroluminescence display and display panel technology, applied in circuits, electrical components, electrical solid devices, etc., can solve the problems of pixel crosstalk and large lateral conductivity of the charge generation layer, and achieve the effect of avoiding pixel crosstalk.

Pending Publication Date: 2021-01-19
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the tandem OLED display panel, since the charge generation layer covers the entire display area (that is, the charge generation layer of the same layer is continuous between each pixel unit and its adjacent pixel units), and the charge generation layer has a large lateral conductivity, This can easily lead to pixel crosstalk problems

Method used

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  • Organic electroluminescence display panel, preparation method and display device
  • Organic electroluminescence display panel, preparation method and display device
  • Organic electroluminescence display panel, preparation method and display device

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preparation example Construction

[0069] Based on the same inventive concept, see Figure 6 , the embodiment of the present invention also provides a method for preparing an organic electroluminescence display panel, comprising the following steps:

[0070] S101, forming an anode layer on the substrate;

[0071] S102. Form a pixel defining layer defining pixel units on the substrate formed with the anode layer; wherein, grooves are provided in the pixel defining layer between adjacent pixel units;

[0072] S103, forming at least two organic electroluminescent units in series covering the anode layer and the pixel defining layer on the substrate formed with the pixel defining layer, and each adjacent organic electroluminescent unit A charge generation layer is formed between them; wherein, each layer of the charge generation layer is disconnected at the groove;

[0073] S104, forming a cathode layer covering the anode layer and the pixel defining layer on the organic electroluminescence unit farthest from the...

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Abstract

The invention provides an organic electroluminescent display panel, a preparation method and a display device, which are used for avoiding the problem of pixel crosstalk caused by transverse conduction of a charge generation layer, and the organic electroluminescent display panel provided by the invention comprises a substrate, an anode layer arranged on the substrate, a pixel defining layer for defining a pixel unit, and a cathode layer which covers the anode layer and the pixel defining layer; at least two organic light-emitting units which are connected in series and cover the anode layer and the pixel defining layer are arranged between the anode layer and the cathode layer, and a charge generation layer is arranged between every two adjacent organic light-emitting units, wherein a groove is formed in the pixel defining layer between the adjacent pixel units, each charge generation layer is disconnected at the groove, and the cathode layer is continuous at the groove.

Description

[0001] This patent application document is a divisional application of the invention patent application document with an application date of July 12, 2017, an application number of 201710567312.4, and an invention title of "An Organic Electroluminescent Display Panel, Preparation Method, and Display Device". technical field [0002] The invention relates to the field of display technology, in particular to an organic electroluminescence display panel, a preparation method and a display device. Background technique [0003] Compared with Liquid Crystal Display (LCD), organic electroluminescent display panel (Organic Electroluminescent Display, OLED) has self-illumination, high luminous efficiency, low power consumption, fast response, wide viewing angle, high brightness, bright color, Light and thin and other advantages, it is considered to be the next generation of display technology. [0004] In order to improve the performance of the OLED display panel, a tandem OLED displ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/52H01L51/56H01L27/32
CPCH10K59/122H10K50/131H10K50/822H10K59/1201H10K71/00H10K71/60H10K50/19H10K71/164H10K71/166H10K71/233
Inventor 王辉锋张旺方金钢
Owner BOE TECH GRP CO LTD
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