IP Library Granted Patent US 9,262,020
Granted Patent B2
US 9,262,020 · App. 13/360,223 · Granted Feb 16, 2016

Electronic device with capacitive touch-sensitive display

Inventor: Jackson Chi Sun Lai (Mississauga, CA)
Assignee: BlackBerry Limited
G06F3/044G06F3/0412G06F3/041
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Quick Facts
Patent No.
US 9,262,020
App. No.
13/360,223
Granted
Feb 16, 2016
Kind
B2
Abstract

A touch-sensitive display includes a substrate, pixel electrodes disposed on the substrate, scanning electrodes interspersed with the pixel electrodes, sense electrodes spaced from the scanning electrodes, and a display material disposed between the scanning electrodes and the sense electrodes.

Claims (29)

1. A touch-sensitive display comprising:

an insulator;

pixel electrodes deposited directly on the insulator;

drive electrodes deposited directly on the insulator and interspersed with the pixel electrodes such that the pixel electrodes and the drive electrodes are disposed in a same layer on the insulator;

sense electrodes spaced from the drive electrodes;

a display material and a color filter material disposed between the pixel electrodes and the sense electrodes;

a black matrix material and the display material disposed between the drive electrodes and the sense electrodes;

wherein the drive electrodes and the sense electrodes are utilized to detect touches on the touch-sensitive display.

2. The touch-sensitive display according to claim 1 , comprising common electrodes disposed between the pixel electrodes and a substrate, and, wherein the insulator is disposed between the pixel electrodes and the common electrodes.

3. The touch-sensitive display according to claim 1 , wherein the sense electrodes are utilized as a shield.

4. The touch-sensitive display according to claim 1 , wherein the color filter is disposed adjacent the sense electrodes.

5. The touch-sensitive display according to claim 1 , wherein the sense electrodes are disposed on a glass substrate and extend over the black matrix material.

6. The touch-sensitive display according to claim 5 , wherein the drive electrodes are aligned with the black matrix material.

7. The touch-sensitive display according to claim 1 , wherein the display material comprises liquid crystal.

8. The touch-sensitive display according to claim 1 , comprising at least one controller coupled to the pixel electrodes, the sense electrodes, and the drive electrodes.

9. The touch-sensitive display according to claim 1 , comprising a touch controller coupled to the drive electrodes and the sense electrodes, and a display controller in communication with the touch controller to control the pixel electrodes.

10. The touch-sensitive display according to claim 9 , wherein the touch controller is operable to carry out touch sensing when the pixel electrodes are not driven.

11. The touch-sensitive display according to claim 9 , wherein gate lines are utilized to drive the drive electrodes when the pixel electrodes are not driven.

12. An electronic device comprising:

a touch-sensitive display comprising:

an insulator;

pixel electrodes deposited directly on the insulator;

drive electrodes deposited directly on the insulator and interspersed with the pixel electrodes such that the pixel electrodes and the drive electrodes are disposed in a same layer on the insulator;

sense electrodes spaced from the drive electrodes;

a display material and a color filter disposed between the pixel electrodes and the sense electrodes;

a black matrix material and the display material disposed between the drive electrodes and the sense electrodes;

at least one controller coupled to the pixel electrodes, the drive electrodes and the sense electrodes, and configured to sense a touch on the touch-sensitive display during horizontal blanking time periods of the touch-sensitive display.

13. The electronic device according to claim 12 , wherein the at least one controller comprises a first controller coupled to the pixel electrodes to control the display of information, and a second controller coupled to the drive electrodes and the sense electrodes and coupled to the first controller to sense a touch on the touch-sensitive display.

14. The electronic device according to claim 12 , wherein the pixel electrodes are coupled to the at least one controller by gate lines and the gate lines are coupled to the drive electrodes.

Assignments (5)
NUNC PRO TUNC ASSIGNMENT Recorded Jun 19, 2023
From: BLACKBERRY LIMITED
To: MALIKIE INNOVATIONS LIMITED
Reel/Frame 064271/0199 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 16, 2023
From: BLACKBERRY LIMITED
To: MALIKIE INNOVATIONS LIMITED
Reel/Frame 064104/0103 →
CHANGE OF NAME Recorded Oct 16, 2015
From: RESEARCH IN MOTION LIMITED
To: BLACKBERRY LIMITED
Reel/Frame 036880/0120 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 10, 2012
From: LAI, JACKSON CHI SUN
To: RESEARCH IN MOTION LIMITED
Reel/Frame 028022/0687 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 29, 2012
From: LAI, JACKSON CHI SUN
To: RESEARCH IN MOTION LIMITED
Reel/Frame 027954/0760 →
Continuity (1)
Related Publication 20130194224A1 · Aug 1, 2013