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Pixel defining structure and manufacturing method thereof, display panel

A pixel definition and manufacturing method technology, applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., to achieve the effect of improving film uniformity and good spreadability

Active Publication Date: 2021-03-30
GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a pixel defining structure, a manufacturing method thereof, and a display panel for the problem of how to improve the uniformity of the light emitting film of a pixel.

Method used

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  • Pixel defining structure and manufacturing method thereof, display panel
  • Pixel defining structure and manufacturing method thereof, display panel
  • Pixel defining structure and manufacturing method thereof, display panel

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0029] like figure 1 As shown, the pixel defining structure 100 of an embodiment includes a substrate 110 , a pixel electrode 120 , a lyophilic covering layer 130 and a pixel defining layer 140 . The pixel defining structure 100 is suitable for displays prepared by printing process. It should be noted that the substrate 110 may be a rigid substrate or a flexible substrate, the rigid substrate may be glass, and the flexible substrate may be a polyimide substrate.

[0030] The pixel defining layer 140 is disposed on the substrate 110, the pixel defining layer 140 has a plurality of opening regions 141 corresponding to the light emitting regions of each sub-pixel, the pixel electrode 120 is disposed on the substrate 110, and the pixel electrode is located in the opening region 141 . It should be noted that the pixel electrode 120 can be an anode or a cathode, which is determined according to the type of the display. The pixel electrode 120 may be a transparent conductive metal...

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Abstract

The invention relates to a pixel defining structure, a manufacturing method thereof, and a display panel. The pixel defining structure includes a substrate, a pixel electrode, a lyophilic covering layer, and a pixel defining layer; the pixel defining layer is disposed on the substrate, and the pixel defining layer has a plurality of light emitting regions corresponding to each sub-pixel one by one The corresponding opening area; the pixel electrode is located on the substrate, and the pixel electrode is located in the opening area; the lyophilic covering layer is located on the substrate, and the lyophilic covering layer covers the The edge of the pixel electrode; the pixel defining layer is made of lyophobic material. The above-mentioned pixel defining structure and display panel can make the ink spread well on the lyophilic covering layer. After drying, the thickness of the film on the lyophilic covering layer is equivalent to the thickness of the film on the pixel electrode, so that the ink is in contact with the pixel electrode. There is no obvious material accumulation on the slope, thereby effectively improving the uniformity of the film in the light emitting area of ​​the pixel electrode.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pixel defining structure, a manufacturing method thereof, and a display panel. Background technique [0002] OLED (Organic Light-Emitting Diode, organic light-emitting diode) and QLED (Quantum Dot Light Emitting Diodes, quantum dot light-emitting diode) displays are produced by solution processing. important direction of technological development. Among them, printing technology is considered to be the most effective way to realize OLED and QLED low-cost and large-area full-color display. [0003] OLEDs or QLEDs prepared by solution printing technology and printing process have the problem of poor display effect. Although researchers have improved it from materials and printing equipment, printing problems such as uneven morphology of the printed film have not been able to achieve the expected results. [0004] In conventional printed AM-QDLED (active matrix quantum dot lig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/56
CPCH10K59/122H10K71/00
Inventor 陈亚文
Owner GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD