CURVED TOUCH DISPLAY APPARATUS FOR PROVIDING TACTILE FEEDBACK AND METHOD THEREOF

• US 20150084929A1
• Filed: 12/09/2013
• Published: 03/26/2015
• Est. Priority Date: 09/25/2013
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: LEE, Jong Bok
• Granted Patent: US 9,239,650 B2
• Time in Patent Office: Days
• US Class Current: 345/175
• CPC Class Codes: G06F 2203/014 Force feedback applied to GUI
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: G06F 3/0425 using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected tracking a projected light spot to determine a position on a display surface G06F3/0386

Abstract

A curved touch display apparatus for providing tactile feedback is provided. The curved touch display comprises a curved screen, in which an image is displayed; and a projector including an infrared irradiator for irradiating infrared rays to the curved screen. An infrared camera photographs an infrared image reflected from the curved screen. An ultrasonic wave array module includes a plurality of ultrasonic wave generators which generate airborne ultrasonic waves. A controller determines a touched point on the curved screen based on the infrared image, and controls an operation of the ultrasonic wave array module to generate airborne ultrasonic waves directed to the touched point.

Claims

1. A curved touch display apparatus for providing tactile feedback, the curved touch display apparatus comprising:

a curved screen in which an image is displayed;

a projector including an infrared irradiator which irradiates infrared rays to the curved screen;

an infrared camera photographing an infrared image reflected from the curved screen;

an ultrasonic wave array module including a plurality of ultrasonic wave generators which generate airborne ultrasonic waves; and

a controller determining a touched point on the curved screen based on the infrared image, and controlling an operation of the ultrasonic wave array module to generate the airborne ultrasonic waves directed to the touched point.

2. The apparatus of claim 1, wherein the controller controls the operation of the ultrasonic wave array module to generate the ultrasonic waves according to a moving path, if the touched point moves on the curved screen.

3. The apparatus of claim 1, wherein the curved touch display apparatus further comprises an application driver executing an application function according to a control instruction of the controller.

4. The apparatus of claim 3, wherein the image displayed on the curved screen comprises a user interface configured with a plurality of selectable objects, and if the touched point is in a region excluding the plurality of objects, the controller controls the operation of the ultrasonic wave array module to generate a first number of airborne ultrasonic waves.

5. The apparatus of claim 4, wherein if the touched point corresponds to any one of the plurality of objects, the controller controls the operation of the ultrasonic wave array module to generate a second number of airborne ultrasonic waves, and generate a control instruction for driving an application function mapped to the selected object.

6. The apparatus of claim 1, wherein the curved screen is installed in a dashboard of a vehicle.

7. A method for providing tactile feedback to a user by a curved touch display apparatus installed in a vehicle, the method comprising:

irradiating infrared rays to a curved screen;

photographing an infrared image reflected from the curved screen;

determining a touched point based on the infrared image; and

generating airborne ultrasonic waves directed to the touched point.

8. The method of claim 7, further comprising:

determining whether the touched point moves on the curved screen; and

generating the airborne ultrasonic waves according to a moving path if the touched point moves on the curved screen.

9. The method of claim 7, wherein the irradiating infrared rays to the curved screen comprises projecting an image, and

wherein the method further comprises:

determining whether the touched point corresponds to any one of a plurality of objects if the image comprises a user interface configured with the plurality of selectable objects;

generating a first number of airborne ultrasonic waves if the touched point is in a region excluding the plurality of objects; and

generating a second number of airborne ultrasonic waves if the touched point corresponds to any one of the plurality of objects.

10. The method of claim 9, further comprising generating a control instruction for driving an application function mapped to the selected object if the touched point corresponds to any one of the plurality of objects.