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Display panel, manufacturing method thereof, maintenance method thereof and display device

A manufacturing method and panel technology, applied in static indicators, instruments, electrical components, etc., can solve problems such as short circuits, yields affecting manufacturing costs, dark spots, etc.

Inactive Publication Date: 2017-10-13
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the manufacturing process of OLED devices, the yield rate is one of the main issues affecting the manufacturing cost. When some bad pixels appear, it will directly lead to the failure of the entire display device.
The manufacturing process of general OLED devices is carried out in a vacuum environment, and the cleanliness of the environment is one of the main reasons affecting the yield rate. For example, residual impurities in the manufacturing process are likely to cause local short circuits between the anode and cathode, resulting in dark spots. Defects, resulting in a decrease in the reliability of OLED devices

Method used

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  • Display panel, manufacturing method thereof, maintenance method thereof and display device
  • Display panel, manufacturing method thereof, maintenance method thereof and display device
  • Display panel, manufacturing method thereof, maintenance method thereof and display device

Examples

Experimental program
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Effect test

Embodiment 1

[0037] This embodiment provides an organic light emitting display panel, Figure 2A A schematic diagram of an equivalent circuit of a sub-pixel unit of an organic light-emitting display panel provided as an example of this embodiment, Figure 2B to have Figure 2A A partial cross-sectional view of an organic light emitting display panel showing the equivalent circuit, Figure 2C to have Figure 2A A partial plan schematic diagram of an organic light emitting display panel showing an equivalent circuit. Such as Figures 2A-2C As shown, the organic light emitting display panel includes a base substrate 100 , a plurality of sub-pixel units 200 disposed on the base substrate 100 , a plurality of data lines 310 and a plurality of scan lines 320 . Each sub-pixel unit 200 includes a driving circuit 210 and at least two light-emitting regions 220. In each sub-pixel unit 200, the same output terminal of the driving circuit 210 is divided into at least two sub-output terminals. The o...

Embodiment 2

[0063] This embodiment provides a method for manufacturing an organic light emitting display panel, Figure 5 A schematic flow chart of the manufacturing method provided in this embodiment, such as Figure 5 As shown, the production method includes:

[0064] S201: Provide a base substrate.

[0065] For example, the material of the base substrate can be made of one or more materials in glass, polyimide, polycarbonate, polyacrylate, polyetherimide, and polyethersulfone. This embodiment includes but does not limited to this.

[0066] S202: Form a plurality of sub-pixel units on the base substrate, wherein forming each sub-pixel unit includes forming a driving circuit and at least two light-emitting regions, and in each sub-pixel unit, the same output terminal of the driving circuit is divided into at least two sub-pixel units. At the output end, at least two light-emitting areas are respectively connected to different sub-output ends.

[0067] For example, thin film transisto...

Embodiment 3

[0085] This embodiment provides a display device, which includes any organic light-emitting display panel provided in Embodiment 1. When a dead pixel occurs in any light-emitting area of ​​the sub-pixel unit included in the display device, The connection of the abnormal light-emitting region to the sub-output terminal can keep the brightness of the image light emitted by the abnormal sub-pixel unit including the abnormal light-emitting region basically unchanged.

[0086] For example, the display device can be a display device such as an organic light emitting diode, and any product or component with a display function such as a TV, a digital camera, a mobile phone, a watch, a tablet computer, a notebook computer, or a navigator including the display device. limited to this.

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PUM

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Abstract

The invention provides an organic light emitting display panel, a manufacturing method thereof, a maintenance method thereof and a display device. The organic light emitting display panel comprises a substrate and a plurality of pixel sub units arranged on the substrate, wherein each of the pixel sub units comprises a driving circuit and at least two light emitting regions, in each of the sub pixel units, a same output end of the drive circuit is divided into at least two sub output ends, at least two light emitting regions are connected to different sub output ends such that different light emitting regions emit same image light under the control of a same image display signal. When any light emitting region in the pixel sub units included by the organic light emitting display panel has a dead pixel, through disconnecting the connection between an abnormal light emitting region and the sub output ends, the brightness of the image light emitted by an abnormal sub pixel unit including the abnormal light emitting region is basically unchanged.

Description

technical field [0001] At least one embodiment of the present invention relates to an organic light emitting display panel, a manufacturing method thereof, a maintenance method and a display device. Background technique [0002] Organic light-emitting display (Organic Light-Emitting Display, OLED) device is a new type of flat panel display device. Devices, so organic light-emitting diode devices have become a very competitive and promising next-generation display technology. [0003] At present, in the manufacturing process of OLED devices, the yield rate is one of the main issues affecting the manufacturing cost, and when some bad pixels appear, it will directly lead to the failure of the entire display device. The manufacturing process of general OLED devices is carried out in a vacuum environment, and the cleanliness of the environment is one of the main reasons affecting the yield rate. For example, residual impurities in the manufacturing process are likely to cause lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208H10K59/351H10K59/131G09G2300/0426G09G2330/10G09G3/3233G09G2300/0452G09G2320/0233H10K59/352H10K59/353H10K59/84H10K50/81H10K50/82H10K59/122H10K71/00G09G2320/0626
Inventor 徐攀
Owner BOE TECH GRP CO LTD