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OLED display device

一种显示装置、显示区域的技术，应用在有机半导体器件、电气元件、电固体器件等方向，能够解决OLED显示装置侧向侵蚀、机台误差、溢出等问题，达到实现窄边框显示、阻挡侧向侵蚀的效果

Inactive Publication Date: 2018-12-21
WUHAN 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

[0004] The invention provides an OLED display device, which can effectively prevent the overflow of organic encapsulation layer materials during the spray printing process, and avoid the lateral erosion of the OLED display device by external water and oxygen, so as to solve the problem of the existing OLED display device. Problems such as machine errors and differences between substrates during the laying process may lead to the overflow of organic encapsulation layer materials, further leading to the technical problem of lateral erosion of OLED display devices by external water and oxygen

Method used

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Embodiment Construction

[0025] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are only for reference The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar elements are denoted by the same reference numerals.

[0026] The present invention is aimed at the existing OLED display device. Due to problems such as machine errors and differences between substrates during the organic coating process, the organic packaging layer material may overflow, further causing the lateral erosion of the OLED display device by external water and oxygen. technical problem, this embodiment can sol...

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Abstract

The invention provides an OLED display device, comprising: an OLED display panel, wherein the OLED display panel comprises a display area and a non-display area located at both end edges of the display area; A dam member located at a non-display area at both end edges of the display area; An encapsulating film layer, wherein a portion of the encapsulating film layer corresponding to the display area is positioned on the surface of the OLED display panel, and a portion of the encapsulating film layer corresponding to the non-display area is positioned on the surface of the dam member; Wherein the dam member includes a planarization layer, a pixel isolation layer, and a pixel support layer provided in a stack. The OLED display device comprises a dam member formed by a planarization layer, apixel isolation layer and a pixel support layer, wherein the dam member further blocks the lateral erosion of the OLED display device by the external water and oxygen, and is further conducive to realizing the narrow frame display of the OLED display device.

Description

technical field [0001] The invention relates to the technical field of display driving, in particular to an OLED display device. Background technique [0002] At present, unlike LCD / LED, OLED does not use inorganic materials. The core light-emitting element of OLED is an electroluminescent device composed of multi-layer organic small molecules / polymers. We know that organic materials are easily eroded by external water and oxygen, resulting in cracking effects. OLED lifetime. Therefore, the OLED packaging process is very important, and the flexible OLED packaging process and requirements are more complicated. At present, the flexible packaging structure is composed of an inorganic / organic alternating structure. The inorganic layer is mainly used to block water and oxygen, and the organic layer is used to buffer stress and fill the inorganic layer. Some tiny pinholes in the skin increase the passage of water and oxygen intrusion, wrapping particle pollutants and so on. In t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52
CPCH10K50/844H10K59/8731H10K59/873H10K59/122H10K2102/311H10K50/84H10K50/8426
Inventor 金江江徐湘伦
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD