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Display substrate, repair method thereof, and display device

A technology for a display substrate and a repair method, which is applied in the directions of organic semiconductor devices, semiconductor devices, electrical components, etc., and can solve problems such as affecting multiple sub-pixels.

Active Publication Date: 2021-09-17
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention at least partly solves the problem that the failure of one pixel circuit will affect multiple sub-pixels in the existing display device with multiplexed pixel circuits, and provides a display substrate and its repair that can reduce the influence of the failure of the pixel circuit on the display effect method, display device

Method used

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  • Display substrate, repair method thereof, and display device
  • Display substrate, repair method thereof, and display device
  • Display substrate, repair method thereof, and display device

Examples

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Effect test

Embodiment 1

[0034] Such as Figure 1 to Figure 3 As shown, this embodiment provides a display substrate, which includes a plurality of driving units 1 for driving the display unit 2 to display, each driving unit 1 corresponds to a plurality of display units 2, and the output terminal 11 of each driving unit 1 The corresponding display units 2 are respectively connected via a branch circuit 31 having a switch unit 3 .

[0035] In the display substrate of this embodiment, the display unit 2 is the part that actually performs light-emitting display, which is equivalent to the light-emitting part in the sub-pixel, and the driving unit 1 is used to provide the display unit 2 with driving signals (such as current, voltage, etc.) To control its light emission, it is equivalent to the pixel circuit of each sub-pixel. Moreover, the output terminal 11 of each drive unit 1 is connected to a plurality of display units 2 through a plurality of branches 31, and each branch 31 is provided with a switch...

Embodiment 2

[0065] Such as Figure 1 to Figure 3 As shown, this embodiment provides a method for repairing the above-mentioned display substrate, which includes:

[0066] S01. Find the drive unit 1 that cannot drive the display unit 2 to display, take it as the problem drive unit 18, select a repair line 5 corresponding to the problem drive unit 18 as the target repair line 59, and use another driver corresponding to the target repair line 59 Unit 1 is the target drive unit 19 .

[0067] S02, cut off the connection between the output terminal 11 of the problem driving unit 18 and its corresponding display units 2, and connect the target repair line 59 with the output terminal 11 of the problem driving unit 18 and the target driving unit 19, so that the target driving unit 19 is connected to the problem Each display unit 2 corresponding to the drive unit 18 is connected.

[0068] That is to say, the drive unit 1 (problem drive unit 18 ) that cannot be driven due to a fault is determined ...

Embodiment 3

[0076] This embodiment provides a display device, which includes the above-mentioned display substrate.

[0077] That is to say, the above display substrates (including unrepaired and repaired ones) can be combined with other components to form a completed display device.

[0078] Specifically, the display device can be any product with a display function such as a liquid crystal display panel, an organic light-emitting diode (OLED) display panel, an electronic paper, a mobile phone, a tablet computer, a television set, a monitor, a notebook computer, a digital photo frame, a navigator, or the like. part.

[0079] Of course, it should be understood that after repairing, the driving method of the above display device (that is, the way of supplying signals to each line) has no substantial change, but under the same driving method, the signal transmission of the position where repairing occurs The way naturally changes.

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Abstract

The present invention provides a display substrate, a repair method thereof, and a display device, belonging to the technical field of pixel circuit multiplexing, which can at least partially solve the problem that a failure of one pixel circuit will affect multiple sub-pixels in an existing display device for multiplexing pixel circuits The problem. The display substrate of the present invention includes a plurality of driving units for driving the display unit to display, each of the driving units corresponds to a plurality of display units, and the output end of each driving unit drives the output end of the corresponding display unit. The units are respectively connected by a branch circuit with a switch unit; and the display substrate also includes: at least one repair line; wherein, each repair line corresponds to two drive units, and is set at the output of the corresponding two drive units terminals and insulated from at least one of the output terminals.

Description

technical field [0001] The invention belongs to the technical field of pixel circuit multiplexing, and in particular relates to a display substrate, a repair method thereof, and a display device. Background technique [0002] In an organic light emitting diode (OLED) array substrate, an organic light emitting diode driving circuit (pixel circuit) is provided in each sub-pixel to drive the organic light emitting diode to emit light. Since there are many devices in the pixel circuit, the area occupied by the sub-pixel increases and the resolution decreases. To this end, the pixel circuit multiplexing method can be adopted, that is, each pixel circuit is connected to a plurality of organic light-emitting diodes through multiple branches, and a switch unit is provided on each branch, and the switch units can be turned on in turn to use The pixel circuit drives each OLED in turn. In this way, the number of pixel circuits can be reduced and the resolution can be improved. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/12H01L27/32
CPCH01L27/1214H01L27/1244H01L27/1259H10K59/12H10K59/131H10K71/861
Inventor 赵德涛肖丽王磊张粲王灿岳晗玄明花陈小川
Owner BOE TECH GRP CO LTD
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