TOUCH-SENSITIVE DISPLAY WITH MOLDED COVER AND METHOD

• US 20130241863A1
• Filed: 03/14/2012
• Published: 09/19/2013
• Est. Priority Date: 03/14/2012
• Status: Abandoned Application

• Current Assignee: Blackberry Limited
• Original Assignee: Blackberry Limited
• Inventors: Walden, Norman, Thrien, Markus
• Application Number:
  US13/420,168
• Publication Number:
  US 20130241863A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• 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
• 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

A touch-sensitive display includes a display, capacitive touch sensors disposed on the display, and a cover molded on the touch sensors such that the touch sensors are disposed between the display and the cover. A method includes disposing capacitive touch sensors on a display and molding a cover over the touch sensors such that the touch sensors are disposed between the display and the cover.

Claims

1. A method comprising:

disposing touch sensors on a display;

molding a cover over the touch sensors such that the touch sensors are disposed between the display and the cover.

2. The method according to claim 1, wherein molding comprises overmolding.

3. The method according to claim 1, wherein the touch sensors are disposed on the display by depositing and patterning the touch sensors on the display.

4. The method according to claim 1, wherein disposing comprises disposing first touch sensors, a dielectric, and second touch sensors, wherein the dielectric is disposed between the first touch sensors and the second touch sensors.

5. The method according to claim 1, wherein the display comprises a liquid crystal display and the touch sensors are capacitive touch sensors.

6. The method according to claim 1, wherein the injection molding comprises placing the display including the touch sensors in a mold and overmolding the cover on the touch sensors.

7. The method according to claim 1, comprising coupling an electrical connector to the touch sensors prior to molding.

8. The method according to claim 7, wherein the electrical connector is partially covered by the cover.

9. The method according to claim 1, wherein the touch sensors are disposed on a polarizer of the display.

10. A touch-sensitive display comprising:

a display;

touch sensors disposed on the display;

a cover molded on the touch sensors such that the touch sensors are disposed between the display and the cover.

11. The touch-sensitive display according to claim 10, wherein the cover is overmolded on the touch sensors.

12. The touch-sensitive display according to claim 10, wherein the touch sensors are deposited on the display.

13. The touch-sensitive display according to claim 10, wherein the touch sensors are disposed on a polarizer of the display.

14. The touch-sensitive display according to claim 10, wherein the touch sensors include first touch sensors, second touch sensors, and a dielectric disposed between the first touch sensors and the second touch sensors.

15. The touch-sensitive display according to claim 10, wherein the display comprises a liquid crystal display, and the touch sensors are capacitive touch sensors.

20. The electronic device according to claim 15, wherein the touch sensors include first touch sensors, second touch sensors, and a dielectric disposed between the first touch sensors and the second touch sensors.

16. An electronic device comprising:

a processor;

a display coupled to the processor;

touch sensors disposed on the display and coupled to the processor via a controller;

a cover molded on the touch sensors such that the touch sensors are disposed between the display and the cover.

17. The electronic device according to claim 16, wherein the cover is overmolded on the touch sensors.

18. The electronic device according to claim 16, wherein the touch sensors are capacitive touch sensors deposited on the display.

19. The electronic device according to claim 16, wherein the touch sensors are disposed on a polarizer of the display.