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

A technology of pixel circuit and liquid crystal capacitor, applied in static indicators, instruments, etc., can solve the problem of high overall efficiency and achieve the effect of reducing power consumption

Active Publication Date: 2016-04-20
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the prior art, the overall efficiency of the liquid crystal display device when displaying a static picture is relatively large.

Method used

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

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Embodiment Construction

[0064] In order to enable those skilled in the art to better understand the technical solution of the present invention, a pixel circuit, a driving method thereof, a display panel and a display device provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0065] figure 1 A schematic circuit structure diagram of a pixel circuit provided in Embodiment 1 of the present invention, as shown in figure 1 As shown, the pixel circuit includes: a data writing unit 1 , a liquid crystal capacitor Clc, a power supply unit 3 and a control signal output unit 2 .

[0066] Wherein, the data writing unit 1 is connected to the gate line GATE, the data line DATA and the first terminal Q of the liquid crystal capacitor Clc, and is used to write the data line The data voltage in DATA is written into the first terminal Q of the liquid crystal capacitor Clc.

[0067] The second terminal P of the liquid crystal capacitor Clc is connected to...

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Abstract

The invention discloses a pixel circuit, a driving method thereof, a display panel and a display device. The pixel circuit comprises a data write-in unit, a liquid crystal capacitor, a power supply unit and a control signal output unit; the data write-in unit is used for writing a data voltage in a data line into a first end of the liquid crystal capacitor at the normal display stage; the control signal output unit is used for collecting the data voltage which is supplied to the pixel circuit by the data line at the normal display stage, generating a corresponding charging control signal according to the collected data voltage and transmitting the charging control signal to the power supply unit at the static display stage; the power supply unit is used for charging the liquid crystal capacitor according to the charging control signal till the voltage difference of both ends is Vdata-Vcom. According to the technical scheme, the power supply unit and the control signal output unit are arranged in the pixel circuit, so that the liquid crystal capacitor can be charged at the static display stage, at the moment, it is not needed to load any scanning signal to a grid line, and thereby power consumption of the display panel can be lowered.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel circuit and its driving method [0002] method, display panel and display device. Background technique [0003] Thin Film Transistor Liquid Crystal Display (TFT-LCD for short), as a flat panel display device, is more and more used because of its small size, low power consumption, no radiation and relatively low production cost. In the field of high-performance display. [0004] The array substrate of the liquid crystal display device includes: a plurality of intersecting gate lines and data lines, and a plurality of pixel units arranged in a matrix form defined by the intersecting gate lines and data lines. In the process of displaying a frame, generally, a driving signal of a certain frequency can be used to scan the gate line from top to bottom row by row, so that the above pixel units are turned on row by row. In this case, the data lines can charge the tur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677G09G2330/021G09G3/3674G09G3/36G09G3/3648G09G2330/028
Inventor 王俊伟
Owner BOE TECH GRP CO LTD
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