Unlock instant, AI-driven research and patent intelligence for your innovation.

Pixel circuit, driving method thereof and display device

A technology of a pixel circuit and a driving method, applied in the field of a pixel circuit and a driving method thereof and a display device, can solve the problems of poor uniformity of Vth compensation and the like

Inactive Publication Date: 2021-02-12
HEFEI VISIONOX TECH CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in different gray scales, although Vth can be internally compensated, due to the different working voltages of different gray scales, the compensation uniformity of Vth in different gray scales is not good

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pixel circuit, driving method thereof and display device
  • Pixel circuit, driving method thereof and display device
  • Pixel circuit, driving method thereof and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, various implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that in each implementation manner of the present invention, many technical details are proposed in order to enable readers to better understand the present invention. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in the present invention can also be realized.

[0025] figure 1 A functional block diagram of a pixel circuit provided by an embodiment of the present invention. refer to figure 1 , the pixel circuit provided in this embodiment includes:

[0026] A control module, the control module is turned on or off in response to the scan signal fr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention relates to the technical field of display, and discloses a pixel circuit, a driving method thereof and a display device, the pixel circuit comprises a first control module, and when the first control module is conducted, the output end of the first control module outputs a first voltage from a first voltage source; when the second control module is conducted, the output end of the second control module outputs a second voltage from the second voltage source, wherein the first control module transmits a first voltage to a grid electrode of the driving module whenbeing conducted, the second control module transmits a second voltage to a source electrode of the driving module when being conducted, and when the first control module and the second control moduleare in a preset state, the gate voltage of the driving module is equal to the sum of the second voltage and the threshold voltage of the driving module, and the source voltage of the driving module is equal to the second voltage. According to the pixel driving circuit and the driving method thereof, the array substrate and the display device provided by the invention, the brightness uniformity ofthe display device can be improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular to a pixel circuit, a driving method thereof, and a display device. Background technique [0002] Organic light-emitting diodes (OLEDs) emit light through current driving, so the characteristics of TFT devices will directly affect the grayscale brightness difference of the display device. When the characteristics of TFT devices of different sub-pixels are too different, it is easy to cause uneven image quality. In view of the above problems, in the existing pixel circuits, the brightness uniformity of the entire display screen can be improved by internally compensating the threshold voltage Vth of the pixel circuits. However, although Vth can be internally compensated under different gray scales, due to different working voltages of different gray scales, the uniformity of compensation of Vth under different gray scales is not good. Contents of the inven...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G09G3/3208G09G3/3266G09G3/3258
CPCG09G3/3208G09G3/3258G09G3/3266G09G2320/0233
Inventor 冯宏庆米磊李洪瑞张兵盖翠丽丁立薇
Owner HEFEI VISIONOX TECH CO LTD