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Pixel driving circuit, driving method, array substrate and display device

A pixel driving circuit and technology for driving transistors, applied in the fields of pixel driving circuits, driving methods, array substrates and display devices, to achieve the effects of eliminating non-uniformity, improving driving effects, and improving quality

Active Publication Date: 2018-06-22
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is: how to realize an AMOLED pixel drive circuit capable of compensating and eliminating the display unevenness caused by the difference in the threshold voltage of the drive transistor

Method used

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  • Pixel driving circuit, driving method, array substrate and display device
  • Pixel driving circuit, driving method, array substrate and display device
  • Pixel driving circuit, driving method, array substrate and display device

Examples

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Embodiment Construction

[0042] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0043]It should be noted that the gate of each transistor defined in the embodiment of the present invention is one end that controls the opening of the transistor, and the source and drain are the two ends of the transistor except the gate. Here, the source and drain are only for convenience of description The connection relationship of the transistors does not limit the direction of the current. Those skilled in the art can clearly know the working principle and state of the transistors according to the type of the transistors and the signal connection mode.

[0044] Such as figure 1 As shown, the pixel driving circuit of the embodiment of the present invention includes...

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Abstract

The present invention relates to the field of display technology, and discloses a pixel drive circuit, including: data lines, gate lines, first power lines, second power lines, reference signal lines, light emitting devices, drive transistors, storage capacitors, reset units, data Write unit, compensation unit and light emission control unit. The invention also discloses a driving method, an array substrate and a display device. The pixel driving circuit of the present invention can compensate and eliminate display unevenness caused by the threshold voltage difference of driving transistors.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel driving circuit, a driving method, an array substrate and a display device. Background technique [0002] Organic Light-Emitting Diode (OLED), as a current-mode light-emitting device, has been increasingly used in high-performance active-matrix light-emitting OLEDs. Traditional passive matrix organic electroluminescent display tubes (Passive Matrix OLED) require a shorter driving time of a single pixel as the display size increases, thus requiring an increase in transient current and power consumption. At the same time, the application of a large current will cause an excessive voltage drop on the ITO metal oxide line, and make the working voltage of the OLED too high, thereby reducing its efficiency. However, an active matrix organic electroluminescent display tube (Active Matrix OLED, AMOLED) scans input OLED current row by row through switching transistors, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3233G09G3/3291G09G3/3266G09G3/3258
CPCG09G2300/0819G09G2300/0842G09G2300/0861G09G2320/045G09G3/3233G09G3/3258G09G3/3266G09G3/3291G09G2310/0278G09G2330/028
Inventor 王颖殷新社李光孙亮
Owner BOE TECH GRP CO LTD
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