Display panel, preparation method thereof and display device

A display panel and substrate substrate technology, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve the problem of low uniformity of film thickness in inkjet printing, and achieve the goal of improving uneven luminescence and uniform film thickness Effect

Pending Publication Date: 2020-09-01
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] An object of the present invention is to provide a display panel, which can solve the problem of low inkjet printing film thickness uniformity in display panels in the prior art

Method used

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

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Embodiment Construction

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the a...

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Abstract

The invention discloses a display panel and a preparation method thereof, and a display device. The display panel comprises a substrate; an anode layer which is arranged on the substrate; a pixel defining layer which is arranged on the anode layer and is provided with an opening, wherein the opening forms a pixel area used for containing pixel ink; an OLED device layer which is arranged on the anode layer of the pixel region, wherein the pixel defining layer is in an L-shaped step shape, and the middle thickness of the pixel defining layer is smaller than the edge thickness. According to the display panel, the preparation method thereof and the display device, the L-shaped stepped pixel defining layer is prepared, and the middle thickness of the L-shaped stepped pixel defining layer is smaller than the edge thickness, so that the film thickness at the edge and the middle of an OLED device layer formed by ink-jet printing is uniform, and the problems of non-uniform luminescence or shortservice life and the like are solved.

Description

technical field [0001] The present application relates to the technical field of display panels, in particular to a display panel, a manufacturing method thereof, and a display device. Background technique [0002] Compared with Liquid Crystal Display (LCD), Organic Light-Emitting Diode (OLED) has the advantages of self-illumination, fast response, wide viewing angle, high brightness, bright color, light and thin, etc. next generation display technology. [0003] OLED film-forming methods mainly include evaporation process or solution process. The evaporation process is relatively mature in small-scale applications, and this technology has been applied in mass production. The solution process OLED film-forming methods mainly include inkjet printing, nozzle coating, spin coating, screen printing, etc. Among them, inkjet printing technology is considered to be a large-scale OLED technology due to its high material utilization rate and large-scale realization. An important w...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L51/56H01L21/77
CPCH10K59/122H10K71/135H10K59/1201
Inventor 刘世奇
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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