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Patent Searching and Data


Title:
ORGANIC LIGHT EMITTING DIODE DISPLAY PANEL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/042288
Kind Code:
A1
Abstract:
An OLED display panel and a manufacturing method therefor. The OLED display panel comprises a TFT array substrate, several organic light emitting units, a first dam wall, a second dam wall, a trench, and a thin film package structure. The organic light emitting units are provided in a display region, and the first dam wall and the second dam wall are provided in a non-display region. The trench is formed at a position corresponding to a gap between the first dam wall and the second dam wall, is provided in the laminated structure of the insulating layer of the TFT array substrate, and comprises an exposed opening. The thin film package structure covers the aforementioned elements. In particular, the trench is provided in a straight line region, and therefore, a height difference is formed between the straight line region and a corner region in the TFT array substrate. The present application can effectively reduce the risk that the organic layer of the thin film package structure overflows in the corner region.

Inventors:
CAO JUN (CN)
HSU HSIANGLUN (CN)
Application Number:
PCT/CN2018/109994
Publication Date:
March 05, 2020
Filing Date:
October 12, 2018
Export Citation:
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Assignee:
WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
H01L27/12
Foreign References:
CN106158881A2016-11-23
CN106158881A2016-11-23
US20160284770A12016-09-29
CN106409869A2017-02-15
CN207637803U2018-07-20
Attorney, Agent or Firm:
ESSEN PATENT & TRADEMARK AGENCY (CN)
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