Display panel and method of making the same

A technology for display panels and manufacturing methods, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve the problems of low service life of OLED display panels, and achieve the effect of increasing service life

CN111584583BActive Publication Date: 2022-07-12WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-07-12

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Abstract

The present application proposes a display panel and a manufacturing method thereof. The display panel includes an array substrate, a light emitting device layer on the array substrate, and an encapsulation layer on the light emitting device layer. The light emitting device layer includes an array substrate on the light emitting device layer. A pixel definition layer on the array substrate; the pixel definition layer includes grooves arranged along the periphery of a sub-pixel area of ​​the display panel, and at least one groove corresponds to one of the sub-pixel areas. In the present application, by disposing at least one groove around the sub-pixel area on the pixel definition layer, the groove increases the escape path of the pixel definition layer, so that the water and oxygen in the pixel definition layer can form a channel from the groove. Escape, removes water and oxygen in the pixel definition layer, and increases the service life of the OLED display panel.
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Description

technical field

[0001] The present application relates to the field of display, and in particular, to a display panel and a manufacturing method thereof. Background technique

[0002] In display technology, Organic Light-Emitting Diode (OLED) displays have many advantages, such as thinness, active light emission, fast response speed, large viewing angle, wide color gamut, high brightness and low power consumption. The third generation of display technology after the display (LCD).

[0003] In the existing OLED display panel, since the pixel definition layer is generally composed of organic substances, the pixel definition layer has characteristics such as oxygen and hydrophilic properties, that is, there is a large amount of water and oxygen in the pixel definition layer of the existing OLED display panel. With the use of the OLED display panel, water and oxygen in the pixel definition layer may corrode the pixel definition layer, the anode layer or the luminescent material...

Examples

Embodiment Construction

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of this application.

[0043] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the ...