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Display panel and display panel manufacturing method

A technology for a display panel and a manufacturing method, which is applied in the manufacturing of semiconductor/solid-state devices, semiconductor devices, electrical components, etc., can solve the problems of failure of auxiliary electrodes and the inability of the cathode to be electrically connected to the auxiliary electrodes, so as to solve the problem of connection failure and smooth connection channels. Effect

Active Publication Date: 2022-03-29
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology

The auxiliary electrode is usually arranged on the lower layer of the light-emitting functional layer and the cathode. In the display manufacturing process, after the surface-type light-emitting functional layer is formed by evaporation, the light-emitting functional layer will cover the overlapping channel between the cathode and the auxiliary electrode formed later, resulting in The cathode cannot be electrically connected to the auxiliary electrode, which makes the auxiliary electrode invalid

Method used

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  • Display panel and display panel manufacturing method
  • Display panel and display panel manufacturing method
  • Display panel and display panel manufacturing method

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Embodiment Construction

[0041] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments that the present application can be used to implement. The directional terms mentioned in this application, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the application, but not to limit the application. In the figures, structurally similar elements are denoted by the same reference numerals.

[0042] An embodiment of the present application provides a display panel, including an auxiliary electrode and a pad layer disposed on the auxiliary electrode. Under the action of the pad layer, the first opening formed on the passivation layer has a longitudinal extension and a lateral extension. an extension part, the cathode disposed in the pixel definition layer is el...

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Abstract

The present application provides a display panel and a method for manufacturing the display panel. The display panel includes a thin film transistor array layer, an auxiliary electrode, a pad layer, a passivation layer, and a pixel definition layer. The pad layer is arranged on the auxiliary electrode. The passivation layer is provided with a first opening, and the first opening has a longitudinal extension and a lateral extension; when manufacturing the display panel, the above-mentioned structural features of the first opening are convenient to make light-emitting The evaporation angle of the functional layer and the evaporation angle of making the cathode are such that the light-emitting functional layer is only formed in the longitudinal extension without completely covering the auxiliary electrode, and the cathode passes through the longitudinal extension and the lateral extension The part is electrically connected to the auxiliary electrode, which solves the problem in the prior art that the connection between the cathode and the auxiliary electrode fails due to the covering of the light-emitting functional layer.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a display panel and a method for manufacturing the display panel. Background technique [0002] OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) display has performance characteristics such as self-illumination, low driving voltage, high luminous efficiency, short response time, high contrast, wide viewing angle, etc., and can realize flexible display and large-area full-color display, etc. Advantages, it is considered by the industry to be the display with the most potential for development. [0003] An OLED display usually includes an array substrate and a pixel definition layer arranged on the array substrate; a thin film transistor device is arranged in the array substrate for controlling the light-emitting function of the pixel definition layer; a plurality of organic light emitting diode devices are arranged in the pixel definition layer, organic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L51/50H01L27/32H01L21/77H01L51/56
CPCH10K59/124H10K50/11H10K50/824H10K59/1201H10K71/00
Inventor 郑智琳唐甲
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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