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Pixel circuit, display substrate

A pixel circuit and level technology, applied in the field of pixel circuits, can solve problems such as the influence of pixel circuit crosstalk, and achieve the effects of reducing changes, reducing the influence of crosstalk, and improving display quality.

Active Publication Date: 2021-08-24
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 existing pixel circuits are easily affected by crosstalk, and provides a pixel circuit and a display substrate that can reduce crosstalk effects

Method used

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  • Pixel circuit, display substrate
  • Pixel circuit, display substrate
  • Pixel circuit, display substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] like Figure 2 to Figure 4 As shown, this embodiment provides a pixel circuit, including:

[0052] a light emitting unit for emitting light during the light emitting phase;

[0053] The storage unit is configured such that it is electrically connected to the first level terminal VREF and the driving unit during the light-emitting phase, and provides a driving level to the driving unit according to the level of the first level terminal VREF;

[0054] The driving unit is configured such that it is electrically connected to the first power supply terminal VDD, the light emitting unit, and the storage unit during the light emitting stage, and controls the light emitting brightness of the light emitting unit according to the driving level;

[0055] The compensation unit is configured to be electrically connected to the storage unit and the driving unit during the light-emitting phase, and to reduce the change degree of the driving level when the level of the first level ter...

Embodiment 2

[0099] like Figure 5 , Image 6 As shown, this embodiment provides a display substrate (such as an array substrate), which includes:

[0100] A plurality of pixel units, each of which is provided with one of the above-mentioned pixel circuits;

[0101] A plurality of first leads, each of which is connected to the first level terminals of a plurality of pixel circuits;

[0102] A plurality of second leads overlapping the first leads.

[0103] That is to say, the above pixel circuit can be used in a display substrate as a light emitting structure in each pixel unit. Wherein, the first level end of the pixel circuit can be powered through the first lead wire; of course, the reset end, control end, gate line end, data line end, second level end, first power supply end, and second power supply end in the pixel circuit etc., and should also be powered through corresponding leads, which will not be described in detail here.

[0104] The display substrate also has a second lead ...

Embodiment 3

[0120] This embodiment provides a display device, which includes the above-mentioned display substrate.

[0121] 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.

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Abstract

The invention provides a pixel circuit and a display substrate, belonging to the technical field of pixel circuits, which can at least partly solve the problem that existing pixel circuits are easily affected by crosstalk. The pixel circuit of the present invention includes: a light-emitting unit, which is used to emit light during the light-emitting phase; a storage unit, which is configured to be electrically connected to the first level end and the driving unit during the light-emitting phase, and is driven according to the level direction of the first level end The unit provides a drive level; the drive unit is configured to be electrically connected to the first power supply terminal, the light-emitting unit, and the storage unit during the light-emitting phase, and controls the light-emitting brightness of the light-emitting unit according to the drive level; the compensation unit is configured It is configured to be electrically connected to the storage unit and the driving unit during the light-emitting phase, and to reduce the change degree of the driving level when the level of the first level terminal jumps.

Description

technical field [0001] The invention belongs to the technical field of pixel circuits, and in particular relates to a pixel circuit and a display substrate. Background technique [0002] In a display panel (such as an organic light-emitting diode display panel), due to the limitation of the layout design, there must be overlap between different leads, that is, there is a parasitic capacitance (coupling capacitance). Therefore, when the level of a lead wire jumps, the levels of other lead wires will also change due to induction, thereby affecting the display (crosstalk). [0003] For example, in a display panel, the reference level is supplied to all pixel units and is used to maintain the level at one end of the storage capacitor during the light-emitting phase, so that the other end of the storage capacitor can provide a stable driving level to the gate of the drive transistor. , so that the pixel unit can emit light stably according to the required brightness. The displa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0626G09G3/3233G09G3/3225G09G2300/0819G09G2300/0852G09G2300/0861G09G2310/0262G09G2310/0245G09G2300/0426G09G2300/0876G09G3/32G09G3/3266G09G3/3275G09G2300/043G09G2320/0209
Inventor 玄明花
Owner BOE TECH GRP CO LTD
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