Display panel and method of making the same

A display panel and substrate technology, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve the problems of high resistance of the second electrode layer, achieve the effects of improving uniformity, reducing production costs, and preventing fractures

Active Publication Date: 2022-07-12
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology

[0008] The purpose of the present invention is to solve the above problems, and to provide a display panel and a manufacturing method thereof. The display panel of the present invention provides an auxiliary electrode layer in the non-light-emitting area, and utilizes the parallel connection of the auxiliary electrode layer and the second electrode layer, which can Solve the problem of excessive resistance of the second electrode layer of the device, and also ensure the light extraction rate

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  • Display panel and method of making the same
  • Display panel and method of making the same

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Embodiment Construction

[0038] 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 the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0039] 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...

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Abstract

The invention discloses a display panel and a preparation method thereof. The display panel includes a substrate, a first electrode layer, a light-emitting layer, a pixel definition layer, a second electrode layer and an auxiliary electrode layer, wherein the pixel definition layer includes a retaining wall and an opening area, the second electrode layer covers the pixel definition layer and the light emitting layer, the auxiliary electrode layer is disposed on the second electrode layer and the orthographic projection of the auxiliary electrode layer on the substrate completely falls into the The retaining wall is in the orthographic projection on the substrate; the display panel of the present invention can solve the problem that the resistance of the second electrode layer is too large, and can also ensure the light output rate of the display panel; the preparation method of the display panel can adjust the pixel by adjusting the pixel By defining the thickness of the layer, the transfer can be directly achieved while the patterned transfer film layer is formed, which simplifies the process.

Description

technical field [0001] The present invention relates to the technical field of display panels, and in particular, to a display panel and a manufacturing method thereof. Background technique [0002] Organic electroluminescence (OLED) display devices mainly include bottom emission type (light is emitted downward relative to the substrate) and top emission type (light is emitted upward relative to the substrate). Compared with the bottom-emitting OLED, the light of the top-emitting OLED directly penetrates from the top of the device without passing through the substrate. The design of the pixel circuit on the substrate will not affect the light-emitting area of ​​the device, avoiding the competition between the area of ​​TFT and metal circuit and the light-emitting area, which can effectively improve the Panel aperture ratio to prepare high-brightness, high-resolution OLED display panels. At the same time, the top-emitting OLED has a lower operating voltage under the same bri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L51/56H01L27/32H01L21/77
CPCH10K59/122H10K50/822H10K50/824H10K59/1201H10K71/00
Inventor 万之君李金川
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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