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Organic light emitting diode display panel and manufacturing method thereof

專利號
US10868277B2
公開日期
2020-12-15
申請人
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.（CN Wuhan）
發(fā)明人
Tianfu Guo
IPC分類
H01L51/52; H01L51/00; H01L51/56
技術(shù)領(lǐng)域
layer,oled,inducing,tft,array,emitting,micro,film,lens,organic
地域： Wuhan

摘要

An organic light emitting diode (OLED) display panel includes a thin film transistor (TFT) array substrate; an OLED light-emitting layer; an encapsulation layer; an inducing layer disposed on a light-emitting side of the OLED light-emitting layer; a micro lens array film disposed over the inducing layer; and an organic hydrophobic layer disposed between the inducing layer and the micro lens array film. By providing the organic hydrophobic layer with strong hydrophobic performance, a surface with a large water contact angle is provided for a subsequent formation of the micro lens array film, thereby improving an optical coupling ratio of the micro lens, and improving luminous efficiency of the OLED light emitting layer.

說明書

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RELATED APPLICATIONS

This application is a National Phase of PCT Patent Application No. PCT/CN2018/121792 having International filing date of Dec. 18, 2018, which claims the benefit of priority of Chinese Patent Application No. 201811091055.2 filed on Sep. 19, 2018. The contents of the above applications are all incorporated by reference as if fully set forth herein in their entirety.

FIELD AND BACKGROUND OF THE INVENTION

The present disclosure relates to the field of display technologies, and more particularly to an organic light emitting diode (OLED) display device and a manufacturing method thereof.

OLED devices have advantages of being light weight, wide viewing angles, fast response times, low temperature resistance, high luminous efficiency, etc., and have received extensive attention in the display field. Especially, OLEDs can be made into flexible displays on flexible substrates, making OLEDs having a broader application prospect. However, light-emitting efficiency of OLED devices is still low, so how to effectively improve the light-emitting efficiency of OLED devices is still a difficult challenge.

權(quán)利要求

1
What is claimed is:1. An organic light emitting diode (OLED) display panel, comprising:a thin film transistor (TFT) array substrate;an OLED light-emitting layer disposed on the TFT array substrate;an encapsulation layer disposed over the OLED light-emitting layer;an inducing layer disposed on a light-emitting side of the OLED light-emitting layer;a micro lens array film disposed over the inducing layer; andan organic hydrophobic layer disposed between the inducing layer and the micro lens array film, wherein the organic hydrophobic layer is disposed on a surface of the inducing layer, and molecular structure of the organic hydrophobic layer is arranged in a direction perpendicular to the TFT array substrate, and an outer molecule of the organic hydrophobic layer is a hydrophobic group.2. The OLED display panel as claimed in claim 1, wherein the OLED light-emitting layer comprises sub-pixels disposed on the TFT array substrate arranged in an array.3. The OLED display panel as claimed in claim 2, wherein the inducing layer is disposed between the TFT array substrate and the sub-pixels.4. The OLED display panel as claimed in claim 2, wherein the inducing layer is disposed between the sub-pixels and the encapsulation layer.5. A manufacturing method of an organic light emitting diode (OLED) display panel, comprising:S10, providing a thin film transistor (TFT) array substrate, and forming an OLED light-emitting layer on the TFT array substrate;S20, forming an inducing layer on the OLED light-emitting layer;S30, forming an organic hydrophobic layer on a surface of the inducing layer by atomic layer deposition, wherein the S30 comprises:depositing at least two precursor compounds alternately on the surface of the inducing layer to obtain a polymer grown perpendicular to the TFT array substrate; andcontrolling an outer molecule of the polymer to be a hydrophobic group to form the organic hydrophobic layer;S40, forming a micro lens array film on a surface of the organic hydrophobic layer; andS50, forming an encapsulation layer on the micro lens array film.6. The manufacturing method as claimed in claim 5, wherein the S40 comprises:forming an array of pre-polymer droplets on the surface of the organic hydrophobic layer by ink jet printing; andcuring the pre-polymer droplets to obtain the micro lens array film.7. The manufacturing method as claimed in claim 5, wherein the inducing layer is made from amino thiol compounds.
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