Display panel and manufacturing method thereof

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

CN111584583AActive Publication Date: 2020-08-25WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-08-25

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Abstract

The invention provides a display panel and a manufacturing method thereof. The display panel comprises an array substrate, a light-emitting device layer located on the array substrate and a packaginglayer located on the light-emitting device layer. The light-emitting device layer comprises a pixel definition layer located on the array substrate; and the pixel definition layer comprises grooves formed in the peripheries of sub-pixel areas of the display panel, and at least one groove corresponds to one sub-pixel area. According to the OLED display panel, at least one circle of grooves surrounding the sub-pixel region are formed in the pixel definition layer, and the grooves increase the escape path of the pixel definition layer, so that water and oxygen in the pixel definition layer can escape from a channel formed by the grooves, the water and the oxygen in the pixel definition layer are removed, and the service life of the OLED display panel is prolonged.
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Description

technical field

[0001] The present application relates to the display field, 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, etc. The third generation of display technology after 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 the characteristics of being oxophilic and hydrophilic, that is, there is still 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 laye...

Examples

Embodiment Construction

[0042] 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.

[0043] 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...