ELECTRONIC DEVICE AND METHOD OF CONTROLLING THE SAME

• US 20140292686A1
• Filed: 02/26/2014
• Published: 10/02/2014
• Est. Priority Date: 03/29/2013
• Status: Abandoned Application

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: YAMAMOTO, Michio, YAMADA, Jouji, NAKAGAWA, Hirofumi, AZUMI, Kohei, HAYASHI, Makoto, MIZUHASHI, Hiroshi, IKENO, Kozo, KIDA, Yoshitoshi
• Application Number:
  US14/190,857
• Publication Number:
  US 20140292686A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• 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
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

According to one embodiment, an electronic device includes a sensor-equipped display device including a pixel electrode, a common electrode opposed to the pixel electrode, and a detection electrode which is opposed to the common electrode, includes a plurality of segments, a display driver configured to supply a display signal to the pixel electrode and to supply a sensor driving signal or a common driving signal to the common electrode, a detection circuit configured to output to the display driver a data set including a sensor detection value from each of the segments of the detection electrode, based on the supplying of the sensor driving signal to the common electrode, and an application processor configured to receive the data set which has been output via the display driver from the detection circuit.

Claims

1. An electronic device comprising:

a sensor-equipped display device including a pixel electrode, a common electrode opposed to the pixel electrode, and a detection electrode which is opposed to the common electrode, includes a plurality of segments;

a display driver configured to supply a display signal to the pixel electrode and to supply a sensor driving signal or a common driving signal to the common electrode;

a detection circuit configured to output to the display driver a data set including a sensor detection value from each of the segments of the detection electrode, based on the supplying of the sensor driving signal to the common electrode; and

an application processor configured to receive the data set which has been output via the display driver from the detection circuit.

2. The electronic device of claim 1, further comprising an interface for exchanging data between the display driver and the application processor,

wherein the interface includes a physical lane for executing output of graphic data from the application processor to the display driver, and output of the data set from the display driver to the application processor.

3. The electronic device of claim 2, wherein the output of the graphic data and the output of the data set are executed by using an identical said physical lane at different timings.

4. The electronic device of claim 1, wherein a DSI (Display Serial Interface) is applied as an interface for communicating the data set between the display driver and the application processor.

5. The electronic device of claim 1, wherein the display driver and the detection circuit are incorporated in one driving IC chip mounted on the sensor-equipped display device.

6. The electronic device of claim 5, wherein the sensor-equipped display device includes an array substrate on which the driving IC chip is mounted and which includes the pixel electrode, and a counter-substrate including the detection electrode, and

the electronic device further comprises a first flexible printed circuit board having a first end portion connected to the array substrate, and a second flexible printed circuit board having a second end portion connected to the detection electrode and a third end portion connected to the first flexible printed circuit board or the array substrate.

7. The electronic device of claim 6, wherein the array substrate includes the common electrode.

8. An electronic device comprising:

a sensor-equipped display device including a pixel electrode, a common electrode which is opposed to the pixel electrode, includes a first segment extending in a first direction and is configured such that a plurality of the first segments are arranged in a second direction crossing the first direction, and a detection electrode which is opposed to the common electrode, includes a second segment extending in the second direction and is configured such that a plurality of the second segments are arranged in the first direction;

a display driver configured to supply a display signal to the pixel electrode and to supply a sensor driving signal or a common driving signal to the common electrode;

a detection circuit configured to output to the display driver a data set including a sensor detection value from each of the second segments of the detection electrode, based on the supplying of the sensor driving signal to the common electrode; and

an application processor configured to receive the data set which has been output via the display driver from the detection circuit.

9. The electronic device of claim 8, further comprising an interface for exchanging data between the display driver and the application processor,

wherein the interface includes a physical lane for executing output of graphic data from the application processor to the display driver, and output of the data set from the display driver to the application processor.

10. The electronic device of claim 9, wherein the output of the graphic data and the output of the data set are executed by using an identical said physical lane at different timings.

11. The electronic device of claim 8, wherein a DSI (Display Serial Interface) is applied as an interface for communicating the data set between the display driver and the application processor.

12. The electronic device of claim 8, wherein the display driver and the detection circuit are incorporated in one driving IC chip mounted on the sensor-equipped display device.

13. The electronic device of claim 12, wherein the sensor-equipped display device includes an array substrate on which the driving IC chip is mounted and which includes the pixel electrode, and a counter-substrate including the detection electrode, and

the electronic device further comprises a first flexible printed circuit board having one end portion connected to the array substrate, and a second flexible printed circuit board having one end portion connected to the detection electrode and the other end portion connected to the first flexible printed circuit board or the array substrate.

14. The electronic device of claim 13, wherein the array substrate includes the common electrode.

15. A method of controlling an electronic device including a sensor-equipped display device including a pixel electrode, a common electrode opposed to the pixel electrode, and a detection electrode which is opposed to the common electrode, includes a plurality of segments, the method comprising:

supplying a sensor driving signal to the common electrode from a display driver;

receiving, by a detection circuit, a sensor detection value from each of the segments of the detection electrode, based on the supplying of the sensor driving signal to the common electrode;

outputting to the display driver a data set including the sensor detection value received by the detection circuit; and

receiving, by an application processor, the data set which has been output via the display driver from the detection circuit.

16. The method of claim 15, wherein output of graphic data from the application processor to the display driver and output of the data set from the display driver to the application processor are executed by using an identical physical lane.

17. The method of claim 16, wherein the output of the graphic data and the output of the data set are executed at different timings.