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Driving method of display panel, driving circuit and display device

A technology for a display panel and a driving method is applied in the field of driving circuits, display devices, and driving methods for display panels, and can solve the problems of waste of power consumption, maintaining bias current, etc., and achieve reduced power consumption, low power consumption, Improve the effectiveness of use

Inactive Publication Date: 2016-06-15
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of existing display panels driven by any frequency, the bias current remains unchanged, which will result in a huge waste of power consumption

Method used

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  • Driving method of display panel, driving circuit and display device
  • Driving method of display panel, driving circuit and display device
  • Driving method of display panel, driving circuit and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment provides a method for driving a display panel, which is used to provide driving currents for multiple pixel structures in the display panel. The driving method can drive the display panel with a driving frequency less than or equal to the refresh frequency, and at the same time, use a small bias current as the driving current, thereby reducing the power consumption of the display panel.

[0042] figure 2 It is a schematic flow chart of the driving method of the display panel in this embodiment, as figure 2 As shown, the driving method of the display panel includes the following steps:

[0043] S1: Obtain the content and refresh rate of the image to be displayed.

[0044] According to the content of the image to be displayed, the driving timing and refresh frequency of each pixel structure in the display panel are determined. If the thin-film transistors used in the display panel to be driven are amorphous silicon thin-film transistors (a-SiTFT) or l...

Embodiment 2

[0072] This embodiment provides a driving circuit for a display panel. The driving circuit can implement the driving method for the display panel in Embodiment 1 and reduce power consumption of the display panel.

[0073] image 3 It is a schematic block diagram of the composition of the driving circuit of the display panel of this embodiment, as image 3 As shown, the driving circuit of the display panel includes a graphics unit 10, a timing controller 20, and a source driving unit 30. The timing controller 20 specifically includes a reset driving frequency module 21 and a mapping module 22. The source driving unit 30 also includes a bias Set the current matching module 31.

[0074] Wherein, the graphics unit 10 is used to obtain the content and refresh rate of the image to be displayed; the timing controller 20 is used to receive the refresh rate of the image to be displayed, and reset the drive frequency of the image to be displayed by resetting the drive frequency module ...

Embodiment 3

[0082] This embodiment provides a display device, which includes a display panel, and further includes the driving circuit for the display panel in Embodiment 2. Wherein, the display panel may be any one of IGZOTFT display panel, a-SiTFT display panel and LTPSTFT display panel.

[0083] It is easy to understand that the display device of this embodiment further includes other conventional components, such as a gate driving unit.

[0084] The display device in this embodiment may be any product or component with a display function, such as electronic paper, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, and navigator.

[0085] Because the display device of this embodiment includes the driving circuit of the display panel in Embodiment 2, the power consumption of the display panel can be significantly reduced; the overall power consumption of the display device will also be significantly reduced.

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Abstract

The invention provides a driving method of a display panel, a driving circuit and a display device, belongs to the technical field of display and at least partially solve the problem that the power consumption of an existing display panel is relatively large. The driving method of the display panel is used for providing driving currents for a plurality of pixel structure in the display panel and comprises the following steps of: obtaining content and a refreshing frequency of images to be displayed; resetting a driving frequency of the images to be displayed, wherein the driving frequency is smaller than or equal to the refreshing frequency; according to the driving frequency, searching for a corresponding control signal, and sending bias currents, serving as the driving currents, corresponding to the control signal to the corresponding pixel structures in the display panel, wherein the bias currents are respectively no more than a bias current corresponding to the refreshing frequency. According to the invention, when the display panel is driven by a low frequency (smaller than the refreshing frequency), the relatively small bias currents are used as the driving currents of the display panel, and the power consumption of the display panel is substantially lowered.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a driving method, a driving circuit and a display device of a display panel. Background technique [0002] With the development of technology, liquid crystal display devices are more and more widely used. At present, the composition of liquid crystal display devices, such as figure 1 As shown, it includes a display panel 1 and a driving circuit for driving the display panel 1 , and the driving circuit includes a source driver 2 , a gate driver 3 and a timing controller 4 . Specifically, the timing controller 4 is used to transmit the image signal (DATA), the line start signal (STH), the latch signal (TP) and the polarity inversion signal (POL) to the source driver 2; the timing controller 4 It is also used to transmit the column start signal (STV), the column clock signal (CPV) and the output enable signal (OE) to the gate driver 3, so that the display panel 1 disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3618G09G3/3648G09G2330/021
Inventor 王东辉张宏勋陈守年何远钦
Owner BOE TECH GRP CO LTD
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