Plug-In Touch Display Device And An Electronic Device

• US 20180113542A1
• Filed: 05/26/2016
• Published: 04/26/2018
• Est. Priority Date: 05/04/2016
• Status: Active Grant

• Current Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Original Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Inventors: CAO, Chang, TSAI, Yu-cheng, MA, Changwen, ZHANG, Zhou
• Granted Patent: US 10,185,423 B2
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/133302 Rigid substrates, e.g. inorganic substrates
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133317 Intermediate frames, e.g. between backlight housing and front frame
• 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 2201/121 common or background
• CPC Class Codes: G02F 2201/123 pixel
• CPC Class Codes: G06F 2203/04105 Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer

Abstract

The present invention publishes a plug-in touch display device published, which comprises a capacitive touch screen and a display module which are stacked together. The display module comprises a display panel and a backlight module arranged relatively and a middle frame used for supporting the display panel and the backlight module. The display panel comprises an array substrate. The array substrate comprises a plurality of pixel electrode layer which is arranged, wherein the pixel electrode layer is used for a first capacitive sensing electrode. The middle frame is toward one side of the backlight module, and further arranging the second capacitive sensing electrode. There is a gap between in the second capacitive sensing electrode and backlight module. The first capacitive sensing electrode and the second capacitive sensing electrode configure an electrode-induction device jointly, which are used for sensing the pressure signal applied on the capacitive touch screen. Wherein, in the display time in one frame, the pixel electrode layer is used for transmitting voltage signals of pixel and pressure sensing signals alternatively. The present invention further publishes an electronic device which comprises the plug-in touch display device as described above.

Claims

1. A plug-in touch display device comprising a capacitive touch screen and a display module which are stacked together;

the capacitive touch screen being used for sensing touch signal;

the display module comprising a display panel and a backlight module arranged relatively and a middle frame used for supporting the display panel and the backlight module;

the display panel comprising an array substrate;

the array substrate comprising a plurality of pixel electrode layer which is arranged;

wherein the pixel electrode layer is used for a first capacitive sensing electrode;

the middle frame being toward one side of the backlight module, and further arranging the second capacitive sensing electrode;

there being a gap between in the second capacitive sensing electrode and backlight module;

the first capacitive sensing electrode and the second capacitive sensing electrode configuring an electrode-induction device jointly, which being used for sensing the pressure signal applied on the capacitive touch screen;

wherein, in the display time in one frame, the pixel electrode layer is used for transmitting voltage signals of pixel and pressure sensing signals alternatively.

2. The plug-in touch display device as recited in claim 1, wherein material of the second capacitive sensing electrode is ITO (indium tin oxide).

3. The plug-in touch display device as recited in claim 1, wherein the capacitive touch screen comprises a touch sensing electrode driving and a touch induction electrode arranged on different layers;

the touch sensing driving electrode and the touch induction electrode being used for inducting touch signals applied on the capacitive touch screen.

4. The plug-in touch display device as recited in claim 1, wherein the capacitive touch screen is connected a touch driver chip and the electrode-induction device is connected a pressure sensor driver chip.

5. The plug-in touch display device as recited in claim 4, wherein the touch driver chip and the pressure sensor driver chip are integrated in the same control chip.

6. The plug-in touch display device as recited in claim 1, wherein the display panel further comprises a filter substrate;

the filter substrate and the array substrate being arranged corresponding to each other;

a liquid crystal layer being arranged between in the array substrate and the filter substrate.

7. The plug-in touch display device as recited in claim 6, wherein the array substrate comprises a first glass substrate;

a pixel electrode layer and a common electrode layer being arranged sequentially on the side of the liquid crystal layer near the first glass substrate;

the pixel electrode layer and the common electrode layer being insulated from each other.

8. An electronic device comprises a housing and a touch display device installed in the housing;

wherein the feature is that the plug-in touch display device comprising a capacitive touch screen and a display module which are stacked together;

the capacitive touch screen being used for sensing touch signal;

the display module comprising a display panel and a backlight module arranged relatively and a middle frame used for supporting the display panel and the backlight module;

the display panel comprising an array substrate;

the array substrate comprising a plurality of pixel electrode layer which is arranged;

wherein the pixel electrode layer is used for a first capacitive sensing electrode;

the middle frame being toward one side of the backlight module, and further arranging the second capacitive sensing electrode;

there being a gap between in the second capacitive sensing electrode and backlight module;

the first capacitive sensing electrode and the second capacitive sensing electrode configuring an electrode-induction device jointly, which being used for sensing the pressure signal applied on the capacitive touch screen;

wherein, in the display time in one frame, the pixel electrode layer is used for transmitting voltage signals of pixel and pressure sensing signals alternatively.

9. The electronic device as recited in claim 8, wherein material of the second capacitive sensing electrode is ITO (indium tin oxide).

10. The electronic device as recited in claim 8, wherein the capacitive touch screen comprises a touch sensing electrode driving and a touch induction electrode arranged on different layers;

the touch sensing driving electrode and the touch induction electrode being used for inducting touch signals applied on the capacitive touch screen.

11. The electronic device as recited in claim 8, wherein the capacitive touch screen is connected a touch driver chip and the electrode-induction device is connected a pressure sensor driver chip.

12. The electronic device as recited in claim 11, wherein the touch driver chip and the pressure sensor driver chip are integrated in the same control chip.

13. The electronic device as recited in claim 8, wherein the display panel further comprises a filter substrate;

the filter substrate and the array substrate being arranged corresponding to each other;

a liquid crystal layer being arranged between in the array substrate and the filter substrate.

14. The electronic device as recited in claim 13, wherein the array substrate comprises a first glass substrate;

a pixel electrode layer and a common electrode layer being arranged sequentially on the side of the liquid crystal layer near the first glass substrate;

the pixel electrode layer and the common electrode layer being insulated from each other.