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Display substrate and preparation method thereof, display panel and display device

A display substrate and display panel technology, which is applied in the direction of electrical components, electric solid devices, circuits, etc., can solve the problems of poor thickness uniformity of the organic light-emitting layer, affecting the life of the display panel and display effect, etc., to improve the uniformity of film formation, Improve the service life and display effect

Pending Publication Date: 2020-02-21
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Generally, a solution process is used to spray ink in the pixel opening to form an organic light-emitting layer, but the climbing amount of the ink at the side wall extending along the long axis direction of the pixel defining layer is different from that at the side wall extending along the short axis direction. Different, resulting in poor uniformity of the thickness of the organic light-emitting layer, affecting the life of the display panel and display effect

Method used

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  • Display substrate and preparation method thereof, display panel and display device
  • Display substrate and preparation method thereof, display panel and display device
  • Display substrate and preparation method thereof, display panel and display device

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Embodiment Construction

[0045] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0046] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term ...

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Abstract

The invention provides a display substrate and a preparation method thereof, a display panel and a display device. The display substrate comprises a substrate body, a pixel electrode layer formed on the substrate body and a pixel defining layer formed on the pixel electrode layer. The pixel electrode layer includes a plurality of pixel electrodes. The pixel defining layer is provided with a plurality of pixel openings in one-to-one correspondence with the plurality of pixel electrodes. Each pixel opening comprises a long axis and a short axis. The pixel defining layer comprises a first defining part extending in the extending direction of the long axis and a second defining part extending in the extending direction of the short axis. The first defining part and the second defining part areboth made of hydrophobic materials; and the contact angle of the first defining part is larger than that of the second defining part.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a display substrate and a preparation method thereof, a display panel and a display device. Background technique [0002] In recent years, display devices based on Organic Light Emitting Diode (OLED) have become popular display products at home and abroad because of their advantages such as self-illumination, wide viewing angle, high luminous efficiency, wide color gamut, low operating voltage, and thin panels. . [0003] The organic light emitting layer of the OLED display panel is formed in the pixel opening of the pixel defining layer, and the pixel opening includes a long axis and a short axis. Generally, a solution process is used to spray ink in the pixel opening to form an organic light-emitting layer, but the climbing amount of the ink at the side wall extending along the long axis direction of the pixel defining layer is different from that at the side wall e...

Claims

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Application Information

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IPC IPC(8): H01L27/32
CPCH10K59/173H10K59/122
Inventor 侯文军
Owner BOE TECH GRP CO LTD
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