Display Driving Method, Display Driving Device and Display Device

Patent metadata

Field	Value
Publication number	US-2017229057-A1
Application number	US-201615326123-A
Country	US
Kind code	A1
Filing date	Feb 16, 2016
Priority date	Sep 10, 2015
Publication date	Aug 10, 2017
Grant date	—

Abstract

A display driving method, a display driving device and a display device are provided. The display driving method includes: detecting corresponding voltage change degrees of a display panel when the display panel adopts different wiring approaches to display an image to be displayed; comparing the detected voltage change degrees to obtain a minimum voltage change degree; and controlling the display panel to adopt a wiring approach corresponding to the obtained minimum voltage change degree, and displaying the image to be displayed using source voltages corresponding to the wiring approach. A display panel in the disclosure can display images of different types with low power consumption, and hence the power consumption of the display panel can be greatly reduced.

First claim

1 . A display driving method, comprising:
detecting corresponding voltage change degrees of a display panel when the display panel adopts different wiring approaches to display an image to be displayed; comparing the detected voltage change degrees to obtain a minimum voltage change degree; and controlling the display panel to adopt a wiring approach corresponding to the obtained minimum voltage change degree, and displaying the image to be displayed using source voltages corresponding to the wiring approach.

2 . The display driving method according to claim 1 , wherein the display panel includes a plurality of wiring layers, the wiring layers are insulated from each other, each of the wiring layers corresponds to a different wiring approach, and the display panel is capable of making selection from the plurality of wiring layers.

3 . The display driving method according to claim 1 , wherein the different wiring approaches include a first wiring approach and a second wiring approach;
the step of detecting corresponding voltage change degrees of the display panel when the display panel adopts different wiring approaches to display the image to be displayed includes: detecting a corresponding first voltage change degree when the display panel adopts the first wiring approach to display the image to be displayed, and detecting a corresponding second voltage change degree when the display panel adopts the second wiring approach to display the image to be displayed; the step of comparing the detected voltage change degrees includes: comparing the first voltage change degree with the second voltage change degree, and obtaining a smaller voltage change degree from the first voltage change degree and the second voltage change degree; and the step of controlling the display panel to adopt the wiring approach corresponding to the obtained minimum voltage change degree and displaying the image to be displayed using the source voltages corresponding to the wiring approach includes:
if the second voltage change degree is the smaller voltage change degree of the first voltage change degree and the second voltage change degree after comparison, controlling the display panel to adopt the second wiring approach and displaying the image to be displayed using source voltages corresponding to the second wiring approach; or
if the first voltage change degree is the smaller voltage change degree of the first voltage change degree and the second voltage change degree after comparison, controlling the display panel to adopt the first wiring approach and displaying the image to be displayed using source voltages corresponding to the first wiring approach.

4 . The display driving method according to claim 3 , wherein in the first wiring approach, each source line in the display panel is connected with subpixels of different colors; and in the second wiring approach, each source line in the display panel is connected with subpixels of a same color.

5 . The display driving method according to claim 1 , wherein each of the voltage change degrees includes: a source-voltage inversion frequency and a source-voltage inversion amplitude.

6 . The display driving method according to claim 5 , wherein the step of comparing the detected voltage change degrees to obtain the minimum voltage change degree includes:
comparing corresponding source-voltage inversion frequencies when the display panel adopts the different wiring approaches to display the image to be displayed, and taking a minimum of the source-voltage inversion frequencies as the minimum voltage change degree; or if the minimum of the source-voltage inversion frequencies cannot be obtained by comparing the corresponding source-voltage inversion frequencies when the display panel adopts the different wiring approaches to display the image to be displayed, further comparing corresponding source-voltage inversion amplitudes when the display panel adopts the different wiring approaches to display the image to be displayed, and taking a minimum of the source-voltage inversion amplitudes as the minimum voltage change degree.

7 . A display driving device, comprising:
a detection module configured to detect corresponding voltage change degrees of a display panel when the display panel adopts different wiring approaches to display an image to be displayed; a comparison module configured to compare the detected voltage change degrees to obtain a minimum voltage change degree; an output module configured to output a signal that indicates a wiring approach corresponding to the obtained minimum voltage change degree and to output source voltages corresponding to the wiring approach; and a driver module configured to control the display panel to adopt the wiring approach corresponding to the minimum voltage change degree according to the signal outputted by the output module, and to display the image to be displayed using the source voltages that correspond to the wiring approach and are outputted by the output module.

8 . The display driving device according to claim 7 , wherein the display panel includes a plurality of wiring layers, the wiring layers are insulated from each other; each of the wiring layers corresponds to a different wiring approach; and the display panel is capable of making selection from the plurality of wiring layers.

9 . The display driving device according to claim 7 , wherein the different wiring approaches includes a first wiring approach and a second wiring approach;
the detection module is configured to detect a corresponding first voltage change degree when the display panel adopts the first wiring approach to display the image to be displayed, and detect a corresponding second voltage change degree when the display panel adopts the second wiring approach to display the image to be displayed; the comparison module is configured to compare the first voltage change degree with the second voltage change degree, and obtain a smaller voltage change degree from the first voltage change degree and the second voltage change degree; the output module is configured to output a signal that indicates a wiring approach corresponding to the smaller voltage change degree of the first voltage change degree and the second voltage change degree and to output source voltages corresponding to the wiring approach; and the driver module is configured to: control the display panel to adopt the second wiring approach when the signal outputted by the output module indicates that the second wiring approach corresponds to the smaller voltage change degree of the first voltage change degree and the second voltage change degree, and display the image to be displayed using source voltages corresponding to the second wiring approach; or control the display panel to adopt the first wiring approach when the signal outputted by the output module indicates that the first wiring approach corresponds to the smaller voltage change degree of the first voltage change degree and the second voltage change degree, and display the image to be displayed using source voltages corresponding to the first wiring approach.

10 . The display driving device according to claim 9 , wherein in the first wiring approach, each source line in the display panel is connected with subpixels of different colors; and in the second wiring approach, each source line in the display panel is connected with subpixels of a same color.

11 . The display driving device according to claim 7 , wherein each of the voltage change degrees includes: a source-voltage inversion frequency and a source-voltage inversion amplitude.

12 . The display driving device according to claim 7 , wherein the d

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Optoelectronics Tech Co Ltd

Inventors

• Wang Di
• Zhang Hao
• Shi Lingyun
• Dong Xue
• He Quanhua

Classifications

• G09G3/20 Primary

  for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} · CPC title

• G09G3/2074

  using sub-pixels · CPC title

• G09G3/2092 Primary

  Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto (suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165) · CPC title

• G09G2330/021

  Power management, e.g. power saving · CPC title

• G09G3/2003

  Display of colours (specific for liquid crystal displays G09G3/3607) · CPC title