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OLED display panel and manufacturing method thereof

A technology for display panels and manufacturing methods, applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve problems such as stability, poor adhesion, and affecting the quality of display panels, so as to improve adhesion and Stability, quality-enhancing effects

Inactive Publication Date: 2019-11-29
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] This application relates to an OLED display panel and its preparation method, which is used to solve the problem of poor stability and adhesion between the inorganic layer and the organic layer of the thin film encapsulation structure in the prior art, which makes the internal film layer vulnerable to the outside world. The influence of water vapor and impurities, thus affecting the quality of the display panel

Method used

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  • OLED display panel and manufacturing method thereof
  • OLED display panel and manufacturing method thereof
  • OLED display panel and manufacturing method thereof

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Embodiment Construction

[0041] 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.

[0042] 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 an OLED display panel and a manufacturing method thereof. The OLED display panel comprises a substrate, a thin film transistor layer, an OLED device layer and a packaging structure layer which are stacked in sequence, wherein the packaging structure layer comprises a first inorganic packaging layer, a first organic packaging layer and a second inorganic packaging layer which are stacked in sequence; the first inorganic packaging layer is provided with; and the first organic packaging layer is provided with a second groove. The display panel has the beneficial effects that firstly, the thin film packaging layer is provided with the groove structure, so that the adhesion and the stability of the inorganic packaging layer and the organic packaging layer are improved, the display panel is not easy to break away when being bent or subjected to transverse pressure, an internal film layer is better protected from being damaged by external water, oxygen, impurities andthe like, and the quality of the display panel is improved; and secondly, the grooves are divided into the first groove and the second groove according to different thicknesses of the inorganic packaging layer and the organic packaging layer, and the depths of the first groove and the second groove are different to a certain extent, so that the stability of the thin film packaging is further improved.

Description

technical field [0001] The present application relates to the display field, in particular to an OLED display panel and a preparation method thereof. Background technique [0002] In recent years, OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) display technology has developed by leaps and bounds. OLED products have received more and more attention and applications due to their advantages of thinness, lightness, fast response, wide viewing angle, high contrast, and bendability. , mainly used in display fields such as mobile phones, tablets, and TVs. [0003] The OLED display panel includes a base layer, a TFT (Thin Film Transistor, Thin Film Field Effect Transistor) driving layer, an OLED light-emitting layer, and an encapsulation layer from bottom to top. The encapsulation layer includes an alternating structure of "inorganic layer-organic layer-inorganic layer" to block the transmission of water and oxygen and prevent OLED devices from failing and aging ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L27/32H01L51/56
CPCH10K59/1201H10K59/8731H10K50/844H10K59/12H10K71/00
Inventor 李朝
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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