Pixel driving circuit, driving method thereof and display device

A pixel driving circuit and driving sub-circuit technology, which is applied to static indicators, instruments, etc., can solve the problems of driving thin film transistors, such as differences in electrical parameters, drifting of electrical parameters, and affecting the display quality of display devices, so as to avoid leakage current signal drift, Ensure uniformity and avoid the effect of Kink effect

Active Publication Date: 2019-07-12
BOE TECH GRP CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide a pixel driving circuit, its driving method, and a display device, which are used to solve the problem that due to differences in the electrical parameters of the dri...

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

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Embodiment Construction

[0052] In order to further illustrate the pixel driving circuit, its driving method, and the display device provided by the embodiments of the present invention, a detailed description will be given below in conjunction with the accompanying drawings.

[0053] see figure 1 and Figure 4 As shown, the embodiment of the present invention provides a pixel driving circuit for driving the light-emitting element 7 to emit light. The pixel driving circuit includes: a driving sub-circuit 1, an energy storage sub-circuit 2, a data writing sub-circuit 3 and a compensation sub-circuit Circuit 4; wherein, the control end of the driving sub-circuit 1 is coupled to the first end of the energy storage sub-circuit 2, the first end of the driving sub-circuit 1 is coupled to the light-emitting element 7, and the second end of the driving sub-circuit 1 is coupled to the second end of the energy storage sub-circuit 2 A level signal input terminal V1 is coupled; the second terminal of the energy ...

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Abstract

The invention discloses a pixel driving circuit, a driving method thereof and a display device, relates to the technical field of display, and aims to solve the problem that the display quality of thedisplay device is affected due to the fact that electrical parameters for driving a thin film transistor are different and part of the electrical parameters drift to different degrees along with theprolonging of the display time of the display device. The pixel driving circuit comprises a driving sub-circuit, an energy storage sub-circuit, a data write-in sub-circuit and a compensation sub-circuit, the data write-in sub-circuit is used for controlling coupling between the conduction current data signal input end and the first end of the driving sub-circuit under the control of the first scanning signal input end in a write-in compensation period; and the compensation sub-circuit is used for controlling the coupling between the first end of the conduction driving sub-circuit and the control end of the driving sub-circuit under the control of the first scanning signal input end in the write-in compensation time period. The pixel driving circuit provided by the invention is used for driving the light-emitting element to emit light.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular, to a pixel driving circuit, a driving method thereof, and a display device. Background technique [0002] An OLED (Organic Light-Emitting Diode, organic light-emitting diode) display device has many advantages, such as self-luminescence, ultra-thinness, fast response speed, high contrast ratio, and wide viewing angle, and is currently a display device that has received widespread attention. As the size of OLED display devices gradually increases, when manufacturing large-sized OLED display devices, due to the limitations of the preparation process and materials, the electrical parameters such as threshold voltage and mobility of the driving thin film transistors in each area of ​​the display device are different. , this difference will be converted into current difference and brightness difference of the OLED display device, resulting in uneven display brightness of th...

Claims

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Application Information

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IPC IPC(8): G09G3/3233
CPCG09G3/3233
Inventor 陈芪飞鹿堃张晓哲周星柏玲徐迪徐东亮任亮亮卢姗卢景洲刘晓锋宋冠男马华平
Owner BOE TECH GRP CO LTD
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