Display device and method of driving the display device

Patent metadata

Field	Value
Publication number	US-10514792-B2
Application number	US-201715793321-A
Country	US
Kind code	B2
Filing date	Oct 25, 2017
Priority date	Dec 5, 2016
Publication date	Dec 24, 2019
Grant date	Dec 24, 2019

Abstract

A display device includes a first display unit and a first sensor unit provided on one surface of the first display unit, a second display unit and a second sensor unit provided on one surface of the second display unit, a third sensor unit provided between the first sensor unit and the second sensor unit and a driver unit including a display driver which controls the first display unit and the second display unit, a sensor driver which controls the first, second and third sensor units, and a mapping controller which maps a position information of a touch input detected from a sensing signal of the second sensor unit into a corresponding position information on the first display unit.

First claim

What is claimed is:

1. A display device, comprising:
a first display unit and a first sensor unit provided on one surface of the first display unit;
a second display unit and a second sensor unit provided on one surface of the second display unit, the second display unit being different from the first display unit;
a third sensor unit provided between the first sensor unit and the second sensor unit; and
a driver unit including a display driver which controls the first display unit and the second display unit, a sensor driver which controls the first, second and third sensor units, and a mapping controller which maps a position information of a touch input detected from a sensing signal of the second sensor unit into a corresponding position information on the first display unit in a double-sided interlocking mode, and into a corresponding position information on the second display unit when the double-sided interlocking mode is not executed.

2. The display device of claim 1 , wherein the mapping controller is activated in response to a sensing signal of the third sensor unit.

3. The display device of claim 1 , wherein the sensor driver turns off the third sensor unit when the double-sided interlocking mode to activate the mapping controller is executed.

4. The display device of claim 1 , wherein the sensor driver activates a partial area of the second sensor unit and turns off remaining areas of the second sensor unit when the double-sided interlocking mode to activate the mapping controller is executed.

5. The display device of claim 1 , wherein the mapping controller is activated in response to a sensing signal input from at least one of the first and second sensor units or a control signal input from a predetermined option key.

6. The display device of claim 1 , wherein the driver unit controls an image or contents displayed on a screen of the first display unit based on the position information output from the mapping controller.

7. The display device of claim 1 , wherein the driver unit displays a point mapped on a screen of the first display unit based on the position information output from the mapping controller.

8. The display device of claim 1 , wherein the first and second sensor units are disposed opposite to each other with respect to the first and second display units which are interposed therebetween, and the third sensor unit is disposed on a same side surface of the first and second display units and connected between the first and second sensor units.

9. The display device of claim 1 , wherein the first and second display units are integrally connected to be included in one foldable display panel together, and the first, second, and third sensor units are integrally connected to be provided on one surface of the foldable display panel.

10. The display device of claim 9 , wherein the display device is folded along a predetermined folding axis arranged on an area of the third sensor unit.

11. The display device of claim 1 , wherein the first sensor unit includes a mutual capacitive touch sensor, and the second sensor unit includes a self-capacitive touch sensor.

12. The display device of claim 1 , further comprising a fingerprint sensor provided on at least one of the second display unit and the second sensor unit.

13. The display device of claim 12 , wherein the driver unit further comprises a fingerprint identification unit which identifies an effective touch input provided to the second sensor unit by using fingerprint information detected from the fingerprint sensor.

14. The display device of claim 1 , wherein a touch input provided to the third sensor unit is classified as a plurality of touch events, and a predetermined operation is performed based on each of the plurality of touch events.

15. The display device of claim 14 , wherein on/off states of at least one of the first and second display units, and the first, second, and third sensor units are controlled based on each of the plurality of touch events.

16. The display device of claim 14 , wherein touch inputs successively provided to the third sensor unit within a predetermined time are counted and the predetermined operation is performed based on the count.

17. The display device of claim 1 , wherein the driver unit activates the mapping controller in response to a predetermined control signal and controls the first display unit based on the corresponding position information.

18. A method of driving a display device including a first display unit and a second display unit overlapping each other, a first sensor unit and a second sensor unit provided on respective surfaces of the first and second display units, and a third sensor unit provided on side surfaces of the first and second display units, the method comprising:
receiving a control signal;
executing a double-sided interlocking mode in response to the control signal;
receiving a touch input provided to the second sensor unit and detecting a position of the touch input;
mapping and converting the position information of detected touch input into a corresponding area information on the first display unit;
controlling the first display unit based on the corresponding area information;
controlling the second display unit based on the corresponding area information when the control signal instructs termination of the double-sided interlocking mode.

19. The method of claim 18 , further comprising generating the control signal based on a touch input provided to the third sensor unit.

20. The method of claim 18 , wherein the third sensor unit is turned off when the double-sided interlocking mode is executed.

21. The method of claim 18 , further comprising generating fingerprint information by using a fingerprint sensor and identifying an effective touch input provided to the second sensor unit based on the fingerprint information.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Sun Hwa

Classifications

• B32B2457/208

  Touch screens · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F2203/04102

  Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F1/1641 Primary

  the display being formed by a plurality of foldable display components (G06F1/1647 takes precedence) · CPC title