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Pixel circuit, driving method thereof, and display device

A technology of pixel circuits and driving nodes, applied in static indicators, instruments, etc., can solve the problem of high power consumption and achieve the effect of reducing power consumption

Active Publication Date: 2019-01-18
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem of high power consumption of the display device when displaying the same picture for a long time in the related art, the present invention provides a pixel circuit and its driving method, and a display device

Method used

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

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Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0053] The transistors used in all the embodiments of the present invention can be thin film transistors or field effect transistors or other devices with the same characteristics, and the transistors used in the embodiments of the present invention are mainly switching transistors according to their functions in circuits. Since the source and drain of the switching transistor used here are symmetrical, the source and drain are interchangeable. In the embodiment of the present invention, the source is referred to as the first stage, and the drain is referred to as the second stage. According to the form in the accompanying drawings, it is stipulated that the middle terminal of the transistor is the gate, the signal input terminal is th...

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Abstract

The invention discloses a pixel circuit, a driving method thereof, and a display device, belonging to the field of display technology. The driving module in the pixel circuit is respectively connected to the driving signal terminal, the data signal terminal and the driving node, and is used to output the data signal from the data signal terminal to the driving node under the control of the driving signal terminal; the holding module in the pixel circuit is respectively connected with the drive node, the first switch signal terminal, the first power signal terminal and the second power signal terminal, and used to control the first switch signal terminal, the first power signal terminal and the second power signal terminal, Keep the potential of the drive node constant. Therefore, when the display device displays the same picture for a long time, the potential of the driving node can be maintained by the holding module, and the data signal terminal does not need to continuously input data signals, so the power consumption of the display device can be effectively reduced.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel circuit, a driving method thereof, and a display device. Background technique [0002] With the development of display technology, Organic Light Emitting Diode (English: Organic Light Emitting Diode; abbreviation: OLED), as a current-type light-emitting device, has become more and more popular due to its characteristics of self-luminescence, fast response and wide viewing angle. It is widely used in the field of high-performance display. [0003] The OLED pixel circuit structure is a circuit structure that controls the current flowing through the OLED by driving a transistor, and is mainly used in display devices. The OLED pixel circuit structure generally includes a plurality of transistors and an OLED, and the plurality of transistors can convert the data voltage at the data signal end into a driving current for driving the OLED, thereby driving the OLED to em...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3233G09G3/3208
CPCG09G3/3208G09G3/3233G09G2330/021G09G3/3258G09G2300/0857G09G3/3275G09G3/3225G09G2300/0842
Inventor 玄明花杨盛际王磊肖丽付杰卢鹏程刘冬妮陈小川
Owner BOE TECH GRP CO LTD