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Pixel unit, driving method thereof, pixel driving circuit, and display device

A driving circuit and pixel unit technology, which is applied in the field of pixel unit and its driving, pixel driving circuit and display device, can solve the problems of reducing the service life of the driving tube, and achieve the effects of increasing the service life, reducing the decay speed, and reducing vth drift

Inactive Publication Date: 2016-11-09
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] A pixel unit in an organic light-emitting diode (OLED) display device is usually provided with only one drive unit, and the drive tube in the drive unit is in a positive bias state for a long time, so the drive tube is likely to cause vth bias. Positive drift, increasing the decay rate of vth, which reduces the life of the drive tube

Method used

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  • Pixel unit, driving method thereof, pixel driving circuit, and display device
  • Pixel unit, driving method thereof, pixel driving circuit, and display device
  • Pixel unit, driving method thereof, pixel driving circuit, and display device

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Embodiment Construction

[0058] In order for those skilled in the art to better understand the technical solution of the present invention, the pixel unit and its driving method, pixel driving circuit and display device provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0059] figure 1 A schematic structural diagram of a pixel unit provided in Embodiment 1 of the present invention, as shown in figure 1 As shown, the pixel unit includes a light emitting device 1 and at least two driving circuits connected to the light emitting device 1 . At least two driving circuits drive the light emitting device 1 alternately.

[0060] In this example, figure 1 Two driving circuits are taken as an example for description. The two driving circuits include a driving circuit 2 and a driving circuit 3 , and the driving circuit 2 and the driving circuit 3 drive the light emitting device 1 alternately. In practical applications, other numbers of driving ci...

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Abstract

The invention discloses a pixel unit, a driving method thereof, a pixel driving circuit, and a display device. A pixel unit comprises a light-emitting device and at least two driving circuits connected with the light-emitting device. The at least two driving circuits are used for driving the light-emitting device in an alternative way. According to the technical scheme provided by the invention, the pixel unit comprises the light-emitting device and the at least two driving circuits connected with the light-emitting device, and the at least two driving circuits are used for driving the light-emitting device in an alternative way. By adopting the at least two driving circuits to drive the light-emitting device in an alternative way, the vth drift of the driving circuits generated by being arranged under a positive bias for a long time is effectively reduced, and therefore the attenuation speed of the vth is reduced, and the service lifetimes of the driving circuits are prolonged.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel unit, a driving method thereof, a pixel driving circuit and a display device. Background technique [0002] A pixel unit in an organic light-emitting diode (OLED) display device is usually provided with only one drive unit, and the drive tube in the drive unit is in a positive bias state for a long time, so the drive tube is likely to cause vth bias. Positive drift increases the decay rate of vth, which reduces the service life of the drive tube. Contents of the invention [0003] The invention provides a pixel unit and its driving method, a pixel driving circuit and a display device, which are used to improve the service life of the driving circuit. [0004] To achieve the above object, the present invention provides a pixel unit, comprising a light emitting device and at least two driving circuits connected to the light emitting device; [0005] At least tw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208
Inventor 孟松李全虎宋丹娜杨飞
Owner BOE TECH GRP CO LTD
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