Method for preparing array substrate, array substrate, and display panel
A technology of array substrate and colloid layer, which is applied in semiconductor devices, electrical components, circuits, etc., can solve the problems of small pixel size and difficult imprinting implementation.
Active Publication Date: 2021-08-06
BOE TECH GRP CO LTD
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Problems solved by technology
Adopting a quasi-periodic wrinkled structure can effectively improve the light extraction of the substrate and waveguide mode. Therefore, in the prior art, template imprinting is often used to prepare wrinkled or periodic concave-convex structures, and most of the existing OLED display devices are AMOLED top-emitting devices. There is a fine TFT backplane structure at the bottom, and the pixel size is small, which is difficult to realize by embossing
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] Please refer to figure 1 , figure 2 , image 3 and Figure 4 , the present invention provides a method for preparing an array substrate, comprising:
[0032] Prepare a thin film transistor device layer 2 on the substrate 1;
[0033] Prepare a pixel planar layer 3 on the side of the thin film transistor device layer 2 away from the substrate 1;
[0034] On the side of the pixel flat layer 3 away from the substrate 1, a layer of colloidal layer 4 m...
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Abstract
The invention relates to the technical field of display devices, and discloses a method for preparing an array substrate, an array substrate, and a display panel. The method for preparing the array substrate includes: sequentially preparing a thin film transistor device layer, a pixel flat layer, and a flat layer with undulations on the substrate. The colloidal layer of the structure and the organic electroluminescent device layer having the same undulating structure as the colloidal layer, wherein the organic electroluminescent device layer includes an anode, an organic light-emitting layer and a cathode sequentially formed on the side of the colloidal layer away from the substrate. In the preparation method of the array substrate, a colloid layer having a relief structure and an organic electroluminescent device layer having the same relief structure as the colloid layer are prepared, and the preparation method is simple and can better improve light extraction efficiency.
Description
technical field [0001] The present invention relates to the technical field of display devices, in particular to a method for preparing an array substrate, an array substrate, and a display panel. Background technique [0002] The principle of light emission of organic electroluminescent (OLED) devices is as follows: electrons and holes are respectively injected into the organic functional layer from the cathode and anode of the device, recombine in the "light-emitting layer" and convert electrical energy into light energy in the form of luminous radiation and emit it to the device outside. As a self-luminous device, OLED is very attractive in the field of outdoor display devices such as smart phones and vehicles due to its excellent electroluminescence characteristics. [0003] Generally speaking, OLED devices are limited by high refractive index components, and the light extraction efficiency is only about 20%, and about 80% of the light is confined inside the device and ...
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IPC IPC(8): H01L27/32
CPCH10K59/124H10K59/1213H10K59/1201
Inventor 李鑫樊星温向敏
Owner BOE TECH GRP CO LTD