DISPLAY APPARATUS, ELECTRONIC APPARATUS AND DRIVING METHOD

• US 20160370913A1
• Filed: 10/11/2014
• Published: 12/22/2016
• Est. Priority Date: 08/29/2014
• Status: Abandoned Application

• Current Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Original Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Inventors: LIU, Jinshan, XIE, Xiaobo, XIONG, Jun, SHI, Lingyun
• Application Number:
  US14/770,995
• Publication Number:
  US 20160370913A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/13439 characterised by their electrical, optical, physical properties; materials therefor; method of making
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 2201/121 common or background
• CPC Class Codes: G02F 2201/123 pixel
• CPC Class Codes: G06F 2203/04107 Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G09G 2310/08 Details of timing specific for flat panels, other than clock recovery
• CPC Class Codes: G09G 3/20 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

Abstract

The present disclosure provides a display apparatus including: a touch display region; a display driving module, configured to load a display driving signal to a first subregion of the touch display region, so as to enable the first subregion to be in a displaying state; a trigger signal generation module, configured to generate a trigger signal when the display driving module loads the display driving signal to the first subregion of the touch display region; and a touch driving signal generation module, configured to load a touch driving signal to touch driving electrodes in each of the other one or more subregions except the first subregion of the touch display region based on the received trigger signal, so that each of the other one or more regions is in a touch detection state while the first subregion is in the displaying state.

Claims

1. A display apparatus, comprising:

a touch display region;

a display driving module, configured to load a display driving signal to a first subregion of the touch display region, so as to enable the first subregion to be in a displaying state, wherein the first subregion is one of at least two subregions obtained by dividing the touch display region;

a trigger signal generation module, configured to generate a trigger signal when the display driving module loads the display driving signal to the first subregion of the touch display region, wherein the trigger signal comprises information on the first subregion; and

a touch driving signal generation module, configured to load a touch driving signal to touch driving electrodes in each of the other one or more subregions except the first subregion of the touch display region based on the received trigger signal, so that each of the other one or more regions is in a touch detection state while the first subregion is in the displaying state.

2. The display apparatus according to claim 1, wherein

the display driving module loads the display driving signal to the first subregion of the touch display region during a time period for scanning one frame of image, so as to enable the first subregion to be in the displaying state;

and

the touch driving signal generation module loads the touch driving signal to the touch driving electrodes in each of the other one or more subregions except the first subregion of the touch display region based on the received trigger signal during the time period for scanning one frame of image, so that each of the other one or more regions is in the touch detection state while the first subregion is in the displaying state.

3. The display apparatus according to claim 1, wherein

the touch display region comprises a first subregion and a second subregion;

during a first stage of the time period for scanning one frame of image, the display driving module loads a first display driving signal to the first subregion, the trigger signal generation module generates a first touch signal when the display driving module loads the first display driving signal to the first subregion, the first trigger signal comprises information on the first subregion, and the touch driving signal generation module loads the first touch driving signal to the touch driving electrodes in the second subregion based on the received first trigger signal; and

during a second stage of the time period for scanning one frame of image, the display driving module loads a second display driving signal to the second subregion, the trigger signal generation module generates a second touch signal when the display driving module loads the second display driving signal to the second subregion, the second trigger signal comprises information on the second subregion, and the touch driving signal generation module loads the second touch driving signal to the touch driving electrodes in the first subregion based on the received second trigger signal,

wherein the first stage of the time period and the second stage of the time period adjoin each other and together form the time period for scanning one frame of image.

4. The display apparatus according to claim 1, wherein when the other one or more subregions are a plurality of subregions, the touch driving signal generation module loads the touch driving signal to the touch driving electrodes in the plurality of subregions synchronously.

5. The display apparatus according to claim 1, wherein the display apparatus further comprises a plurality of gate lines, pixel electrodes and a common electrode within the touch display region;

and

the display driving module comprises a gate driving signal generation unit, a pixel electrode driving signal generation unit and a common electrode driving signal generation unit, wherein

the gate driving signal generation unit generates a gate driving signal, loads the generated gate driving signal to a corresponding gate line, and is connected to the corresponding gate line;

the pixel electrode driving signal generation unit generates a pixel electrode driving signal, loads the generated pixel electrode driving signal to a corresponding pixel electrode, and is connected to the corresponding pixel electrode; and

the common electrode signal generation unit generates a common electrode signal, loads the generated common electrode signal to the common electrode, and is connected to the common electrode.

6. The display apparatus according to claim 1, comprising:

a first substrate;

a second substrate; and

touch sensing electrodes, arranged on the first substrate, and configured to interact with the touch driving electrodes to implement the touch detection,

wherein, the touch driving electrodes are arranged on the second substrate, and intersected with and insulated from the touch sensing electrodes.

7. The display apparatus according to claim 6, wherein the touch sensing electrodes comprise a plurality of strip-shaped electrodes arranged in a horizontal direction and in parallel;

and

the touch driving electrodes comprise a plurality of electrodes arranged in a longitudinal direction and in parallel, each of which consists of a plurality of block-shaped electrodes connected electrically.

8. The display apparatus according to claim 6, wherein all of the gate lines, the pixel electrodes and the common electrode are arranged on the second substrate.

9. The pixel circuit according to claim 6, wherein the second substrate further comprises:

data lines; and

a shielding layer, arranged between the touch driving electrodes and the data lines.

10. The display apparatus according to claim 1, wherein the touch driving electrodes in different subregions are connected to a same touch driving signal generation module.

11. The display apparatus according to claim 1, wherein the touch driving electrodes in different subregions are connected to different touch driving signal generation modules.

12. The display apparatus according to claim 1, wherein the display apparatus is an in-cell touch display apparatus.

13. An electrical apparatus, comprising the display apparatus according to claim 1.

20. The display apparatus according to claim 2, wherein

the touch display region comprises a first subregion and a second subregion;

during a first stage of the time period for scanning one frame of image, the display driving module loads a first display driving signal to the first subregion, the trigger signal generation module generates a first touch signal when the display driving module loads the first display driving signal to the first subregion, the first trigger signal comprises information on the first subregion, and the touch driving signal generation module loads the first touch driving signal to the touch driving electrodes in the second subregion based on the received first trigger signal; and

during a second stage of the time period for scanning one frame of image, the display driving module loads a second display driving signal to the second subregion, the trigger signal generation module generates a second touch signal when the display driving module loads the second display driving signal to the second subregion, the second trigger signal comprises information on the second subregion, and the touch driving signal generation module loads the second touch driving signal to the touch driving electrodes in the first subregion based on the received second trigger signal, wherein the first stage of the time period and the second stage of the time period adjoin each other and together form the time period for scanning one frame of image.

14. A method for driving a display apparatus comprising a touch display region, comprising:

loading a display driving signal to a first subregion of the touch display region, so as to enable the first subregion to be in a displaying state, wherein the first subregion is one of at least two subregions obtained by dividing the touch display region;

generating a trigger signal when the display driving signal is loaded to the first subregion of the touch display region, wherein the trigger signal comprises information on the first subregion; and

loading a touch driving signal to touch driving electrodes in each of the other one or more subregions except the first subregion of the touch display region based on the trigger signal, so that each of the other one or more regions is in a touch detection state while the first subregion is in the displaying state.

15. The method according to claim 14, wherein the step of loading a touch driving signal to touch driving electrodes in each of the other one or more subregions except the first subregion of the touch display region based on the trigger signal comprises:

when the other one or more subregions are a plurality of subregions, loading the touch driving signal to the touch driving electrodes in the plurality of subregions synchronously.

16. The method according to claim 14, the step of loading a display driving signal to a first subregion of the touch display region so as to enable the first subregion to be in a displaying state comprises:

loading the display driving signal to the first subregion of the touch display region during a time period for scanning one frame of image, so as to enable the first subregion to be in the displaying state.

17. The method according to claim 14, wherein the step of loading a touch driving signal to touch driving electrodes in each of the other one or more subregions except the first subregion of the touch display region based on the trigger signal so that each of the other one or more regions is in a touch detection state while the first subregion is in the displaying state comprises:

loading the touch driving signal to the touch driving electrodes in each of the other one or more subregions except the first subregion of the touch display region based on the received trigger signal during the time period for scanning one frame of image, so that each of the other one or more regions is in the touch detection state while the first subregion is in the displaying state.

18. The method according to claim 14, wherein

during a first stage of the time period for scanning one frame of image, the method comprises:

loading a first display driving signal to the first subregion, so that the first subregion is in the displaying state during the first stage;

generating a first trigger signal when the first display driving signal is loaded to the first subregion, wherein the first trigger signal comprises information on the first subregion; and

loading the first touch driving signal to the touch driving electrodes in the second subregion based on the first trigger signal, so that the second subregion is in the touch detection state while the first subregion is in the displaying state;

during a second stage of the time period for scanning one frame of image, the method comprises;

loading a second display driving signal to the second subregion, so that the second subregion is in the displaying state during the second stage;

generating a second trigger signal when the second display driving signal is loaded to the second subregion, wherein the second trigger signal comprises information on the second subregion; and

loading the second touch driving signal to the touch driving electrodes in the first subregion based on the second trigger signal, so that the first subregion is in the touch detection state while the second subregion is in the displaying state,

wherein the first stage of the time period and the second stage of the time period adjoin each other and together form the time period for scanning one frame of image.

19. The method according to claim 14, wherein the display apparatus is an in-cell touch display apparatus.