Organic light-emitting display device and manufacturing method thereof
A technology of light-emitting display and organic light-emitting layer, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc. It can solve problems such as poor display and abnormal light emission, and achieve better display effects by avoiding abnormal light emission and concentrated reflection Effect
Active Publication Date: 2020-11-06
TRULY HUIZHOU SMART DISPLAY
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Problems solved by technology
The anode layer of a traditional AMOLED is connected to the lower metal layer through a via hole, and the anode at the via hole position is concave, and the reflection generated at the concave position of the anode is relatively concentrated, resulting in abnormal light emission at the concave position of the anode, resulting in poor display
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[0039] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0041] For example...
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Abstract
The invention relates to an organic light-emitting display device and a preparation method thereof. The device comprises: a substrate; a thin film transistor formed on the substrate; a first organic insulating layer formed on the thin film transistor; an anode formed on the first organic insulating layer, The anode includes a first anode metal layer, a second anode metal layer and a third anode metal layer sequentially formed on the first organic insulating layer, the first anode metal layer is formed in the light-emitting region and in the via hole, the first anode metal layer The reflectivity is lower than the reflectivity of the second anode metal layer and the reflectivity of the third anode metal layer; the second organic insulating layer formed on the anode. By removing the second anode metal layer and the third anode metal layer with higher reflectivity on the upper layer of the anode, only the first anode metal layer with lower reflectivity remains in the via hole, reducing the reflected light of the anode at the via hole position , to avoid concentrated reflection of light at the position of the via hole, effectively avoid local abnormal light emission, and make the display effect better.
Description
technical field [0001] The invention relates to the technical field of organic light-emitting display manufacturing, in particular to an organic light-emitting display device and a preparation method thereof. Background technique [0002] OLED (Organic Light-Emitting Diode, organic light-emitting diode) display has the advantages of self-illumination, ultra-thin, fast response, wide viewing angle, low power consumption, etc., and is considered to be the most potential display device. [0003] AMOLED (Active-matrix organic light emitting diode, active matrix organic electroluminescent device) can give full play to OLED (Organic Light-Emitting Diode, organic light-emitting diode) process is simple, high luminous efficiency, light and thin, rich colors and wide viewing angle, etc. Advantages, it can be used in large-size displays, and it can also play its potential in micro-displays. [0004] In AMOLED display devices, since the organic light-emitting layer emits light in all ...
Claims
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IPC IPC(8): H01L51/52H01L27/32
CPCH10K59/12H10K50/81H10K59/1201
Inventor 陈小龙铃木浩司谢雄伟任思雨苏君海李建华
Owner TRULY HUIZHOU SMART DISPLAY