OLED panel and its manufacturing method
A manufacturing method and panel technology, applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve problems such as increasing production costs and reducing process yields, and achieve increased viewing angles, increased exit angles, and improved light extraction rates Effect
Active Publication Date: 2021-08-03
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology
However, the above-mentioned technologies of adding external components will add new materials and processes to the glass cover, thereby increasing production costs and even reducing process yields.
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[0031] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. Furthermore, the directional terms mentioned in the present invention, such as up, down, top, bottom, front, rear, left, right, inner, outer, side, surrounding, center, horizontal, lateral, vertical, longitudinal, axial, Radial, uppermost or lowermost, etc., are only directions with reference to the attached drawings. Therefore, the directional terms used are for describing and understanding the present invention, not for limiting the present invention.
[0032] Please refer to figure 1 , figure 1 It is a flow chart of a manufacturing method of an OLED panel according to an embodiment of the present invention. The manufacturing method of the OLED panel includes:
[0033] In step S1, a thin film transistor substrate (TFT substrate) is provided. The thin film transistor substrate has a plurality of thin f...
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Abstract
The invention discloses a method for manufacturing an OLED panel, comprising: providing a thin film transistor substrate; forming an OLED device on the thin film transistor substrate; forming a first water blocking layer on the OLED device, and the first a water blocking layer covering the OLED device; forming a buffer layer on the first water blocking layer, the buffer layer corresponding to the OLED device; performing a surface treatment on the buffer layer by a plasma, forming a plurality of protrusions on the buffer layer; and forming a second water blocking layer on the buffer layer, the second water blocking layer covers the buffer layer, and is on the second water blocking layer A plurality of bulges are formed, and the bulges correspond to the plurality of protrusions to form a scattering area.
Description
technical field [0001] The present invention relates to the field of display technology, in particular to an OLED panel and a manufacturing method thereof. Background technique [0002] For top-emitting OLED panels, improving light output and increasing viewing angles have always been the main directions for R&D improvement. At present, the existing technology is mainly to increase the roughness of the glass cover plate, to coat the glass cover plate with microspheres, a scattering layer, to cover the microlenses, etc. to increase the technical improvement of external components. Increasing the roughness of the glass cover, coating microspheres on the glass cover, and the scattering layer are all based on the principle of scattering, so that the light enters the scattering layer and is scattered for multiple times to emit light, thereby improving the light output rate; The principle is to reduce the ray angle with the original incident angle greater than the critical angle ...
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IPC IPC(8): H01L51/52H01L27/32H01L21/77
CPCH10K59/12H10K50/846H10K50/854H10K59/1201H10K50/844
Inventor 杨中国李金川
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD