Display panel and preparation method thereof

A display panel and longitudinal cross-section technology, applied in semiconductor/solid-state device manufacturing, electrical components, electrical solid-state devices, etc., can solve the problems of color shift and impure luminescence, and achieve the effect of preventing color shift and improving luminous purity.

Inactive Publication Date: 2021-08-31
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a display panel, which can solve the problems of impure light emission and color shift in existing display panels.

Method used

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  • Display panel and preparation method thereof
  • Display panel and preparation method thereof
  • Display panel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 , figure 2As shown, this embodiment provides a display panel 100 . The display panel 100 includes a plurality of pixel units 101 arranged in an array. Each pixel unit 101 includes a plurality of sub-pixels. In this embodiment, each pixel unit 101 includes: a first sub-pixel 1011 , a second sub-pixel 1012 and two third sub-pixels 1013 . More preferably, in this embodiment, the first sub-pixel 1011 is a red sub-pixel, the second sub-pixel 1012 is a blue sub-pixel, and the third sub-pixel 1013 is a green sub-pixel. Wherein, the first sub-pixel 1011 is located at the lower right corner of the pixel unit 101, the second sub-pixel 1012 is located at the upper left corner of the pixel unit 101, and the two third sub-pixels 1013 are respectively located at the pixel unit 101 the lower left and upper right corners of the . In other embodiments, the colors of the first sub-pixel 1011, the second sub-pixel 1012, and the third sub-pixel 1013 can be replaced a...

Embodiment 2

[0062] Such as Figure 8 As shown, this embodiment includes most of the technical features of Embodiment 1, and its difference from Embodiment 1 is that the third sub-pixel 1013 of Embodiment 2 is close to the pixel blocking unit of the first sub-pixel 1011 A first notch 31 is formed in the middle of the side wall. In this embodiment, the longitudinal cross-sectional shape of the first notch 31 is triangular, and the first notch 31 has an included angle α, and the included angle α is less than or equal to 20°. The depth of the first notch 31 thus formed is relatively deep, which can ensure the gap between the functional layer 4 on the surface of the anode unit 2 and the functional layer 4 on the surface of the pixel barrier unit 3 provided with the first notch 31 when the functional layer 4 is prepared. There is a gap, which prevents the lateral conduction between the third sub-pixel 1013 and the first sub-pixel 1011, thereby preventing the first sub-pixel 1011 from being lit...

Embodiment 3

[0065] Such as Figure 13 As shown, this embodiment includes most of the technical features of Embodiment 1. The difference between this embodiment and Embodiment 1 is that the third sub-pixel 1013 is close to the side of the pixel blocking unit 3 of the second sub-pixel 1012 The wall is provided with a second notch 34 . At this time, the length of the first gap 31 is smaller than the length of the third sub-pixel 1013 ; the length of the second gap 34 is smaller than the width of the third sub-pixel 1013 . Specifically, the length of the first gap 31 is shorter than the opening length L1 of the third sub-pixel 1013 ; the length of the second gap 34 is smaller than the opening width L2 of the third sub-pixel 1013 . In this way, the four corners of the third sub-pixel 1013 can be retained, ensuring that the cathode prepared later is continuous.

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Abstract

The invention relates to a display panel and a preparation method thereof. A gap is formed in the side wall of at least one pixel blocking unit of at least one sub-pixel, so that a gap is formed between a functional layer on the surface of an anode unit and a functional layer on the surface of the pixel blocking unit, so the adjacent sub-pixels cannot conduct electricity in the transverse direction, when any sub-pixel emits light, the sub-pixel adjacent to the sub-pixel is prevented from being lightened, the light emitting purity of the sub-pixel is improved, and the color cast phenomenon is prevented.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a display panel and a manufacturing method thereof. Background technique [0002] An organic light-emitting display device (full name in English: Organic Light-Emitting Diode, OLED for short) is also called an organic electro-laser display device or an organic light-emitting semiconductor. OLED has the advantages of low voltage demand, high power saving efficiency, fast response, light weight, thin thickness, simple structure, low cost, wide viewing angle, almost infinitely high contrast, low power consumption, and extremely high response speed. One of the most important display technologies. [0003] In the production process of OLED, multi-layer metal materials, inorganic materials or organic materials need to be deposited layer by layer on the glass substrate by evaporation. In the evaporation process, the metal mask is used to cover the glass substrate to be evap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L27/32H01L51/56
CPCH10K59/12H10K59/121H10K50/8428H10K59/1201H10K71/00
Inventor 吴铭
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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