Pixel circuit driving method, display panel and display device

A technology of a pixel circuit and a driving method, applied in the display field, can solve the problems of poor display effect and short-term afterimage of the display panel, etc.

Active Publication Date: 2020-03-31
YUNGU GUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, there is a problem of short-term afterimage in the existing display panel, which makes the display effect poor

Method used

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  • Pixel circuit driving method, display panel and display device
  • Pixel circuit driving method, display panel and display device
  • Pixel circuit driving method, display panel and display device

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Embodiment Construction

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0043] As mentioned in the background art, there is a problem of short-term afterimage in the existing display panel. For example, the light-emitting devices originally displaying different gray scales in the display panel switch to the same gray scale with different luminances, which makes the display effect poor. The inventors have found through research that the reason for the above problems is that the existing display panels usually include a plurality of pixel circuits, and the pixel circuits include drive tr...

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PUM

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Abstract

The embodiment of the invention discloses a driving method of a pixel circuit, a display panel and a display device. The pixel circuit comprises a driving transistor, a data writing transistor, a compensation transistor, a first initialization transistor, a second initialization transistor and a light emitting device, the compensation transistor is connected between a grid electrode and a second electrode of the driving transistor, and the second electrode of the driving transistor is connected to an initialization power supply end through the first initialization transistor; the second initialization transistor is connected between the first signal end and the first pole of the driving transistor; the driving method of the pixel circuit comprises the following steps: an initialization stage: providing a conduction control signal for a grid electrode of a first initialization transistor and a grid electrode of a compensation transistor, providing a conduction control signal for a gridelectrode of a second initialization transistor, and providing a fixed voltage for a first signal end; and a data writing stage: providing a conduction control signal for the grid electrode of the data writing transistor, so that complete reset of the driving transistor is realized in the initialization stage, and the ghost phenomenon is reduced.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, relate to a driving method of a pixel circuit, a pixel circuit, a display panel, and a display device. Background technique [0002] With the development of display technology, people have higher and higher requirements for display effects. [0003] Existing display panels usually include a plurality of pixel circuits and light emitting devices, and the pixel circuits drive the light emitting devices to emit light for display. [0004] However, there is a problem of short-term afterimage in the existing display panel, which makes the display effect poor. Contents of the invention [0005] The invention provides a driving method of a pixel circuit, a display panel and a display device, so as to improve short-term afterimage phenomenon and improve display effect. [0006] In the first aspect, an embodiment of the present invention provides a driving met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G2320/0257G09G3/3233G09G2300/0819G09G2300/0842G09G2300/0861G09G2310/0251G09G3/3266
Inventor 赵东方沈阳郭子栋张豪峰杜哲李俊峰葛泳
Owner YUNGU GUAN TECH CO LTD
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