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How to make a display panel

A manufacturing method and a display panel technology, which are applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve problems such as image quality degradation, degradation of user visual experience, and degradation of organic light-emitting diode brightness. Reflectivity, reducing the chance of light and color mixing, and improving the display quality

Active Publication Date: 2022-01-11
AU OPTRONICS CORP
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Problems solved by technology

However, under the condition of a large viewing angle in the oblique direction, the light of the organic light-emitting diode is easily blocked by the light-shielding layer, resulting in a significant decrease in brightness.
Therefore, the image observed by the user when looking obliquely will be darker than the image observed when looking straight on, which reduces the image quality and reduces the user's visual experience.

Method used

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  • How to make a display panel
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  • How to make a display panel

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Embodiment Construction

[0056] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

[0057] In the drawings, the thickness of each element and the like is exaggerated for clarity. Throughout the specification, the same reference numerals denote the same elements. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on," "connected to," or "overlapping" another element, it can be directly on the other element. on or connected to another element, or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are...

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Abstract

The invention provides a manufacturing method of a display panel. The method includes the following steps: providing an array substrate. The active device layer is formed on the array substrate. A pixel definition layer is formed on the active device layer, and the pixel definition layer has an opening. A first electrode is formed on the active device layer and overlaps the opening. A light emitting layer is formed on the first electrode and located in the opening. The second electrode is formed on the pixel definition layer and overlaps the light emitting layer. A cover layer is formed on the second electrode, and the cover layer has a first portion overlapping the pixel definition layer and a second portion overlapping the opening. Exposing the first part of the covering layer to modify the first part into a light-shielding layer. The colored light substrate is arranged opposite to the array substrate. The shading layer overlaps the pixel definition layer.

Description

technical field [0001] The invention relates to a manufacturing method of a display panel, in particular to a display panel with a light-shielding layer formed on a pixel definition layer. Background technique [0002] In recent years, compared with the current mainstream liquid crystal display panels, organic light-emitting diode (OLED) display panels have gradually attracted various technologies due to their high color saturation, fast response speed and high contrast performance. The investment vision of big factories. [0003] Generally speaking, in order to prevent the wires in the display panel from reflecting light from the outside, a light-shielding layer (Black Matrix, BM) is arranged on the color substrate opposite to the array substrate to shield the wires and reduce the reflectivity. However, under the condition of a large viewing angle in an oblique direction, the light of the organic light-emitting diode is easily blocked by the light-shielding layer, resultin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/52
CPCH10K59/126H10K59/12H10K50/86H10K50/865H10K50/844H10K59/1201
Inventor 陈奕宏林俊佑
Owner AU OPTRONICS CORP
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