Flat panel display with integral touch screen
First Claim
1. A display device with an integral touch screen, comprising:
- a display panel comprising a plurality of pixels, a plurality of column electrodes, and a plurality of row electrodes, each pixel controlled by a corresponding one of the plurality of column electrodes and a corresponding one of the plurality of row electrodes,wherein all of the column electrodes are coupled to respective column driver circuits and at least some of the column electrodes are coupled to respective column sensing circuits, each column sensing circuit adapted to sense capacitive coupling between the respective column electrode and a probe adjacent to an external surface of the display panel, andwherein all of the row electrodes are coupled to respective row driver circuits and at least some of the row electrodes are coupled to respective row sensing circuits, each row sensing circuit adapted to sense capacitive coupling between the respective row electrode and a probe adjacent to an external surface of the display panel.
1 Assignment
0 Petitions
Accused Products
Abstract
There are disclosed display devices with integral touch screens and methods for operating display panels. A display panel may include a plurality of pixels, each pixel controlled by a corresponding one of a plurality of column electrodes and a corresponding one of a plurality of row electrodes. Each column electrode may be coupled to a respective column driver circuit and at least some of the column electrodes may be coupled to respective column sensing circuits adapted to sense capacitive coupling between the respective column electrodes and a probe adjacent to an external surface of the display panel. Each row electrode may be coupled to a respective row driver circuit and at least some of the row electrodes may be coupled to respective row sensing circuits adapted to sense capacitive coupling between the respective row electrodes and a probe adjacent to an external surface of the display panel.
-
Citations
18 Claims
-
1. A display device with an integral touch screen, comprising:
-
a display panel comprising a plurality of pixels, a plurality of column electrodes, and a plurality of row electrodes, each pixel controlled by a corresponding one of the plurality of column electrodes and a corresponding one of the plurality of row electrodes, wherein all of the column electrodes are coupled to respective column driver circuits and at least some of the column electrodes are coupled to respective column sensing circuits, each column sensing circuit adapted to sense capacitive coupling between the respective column electrode and a probe adjacent to an external surface of the display panel, and wherein all of the row electrodes are coupled to respective row driver circuits and at least some of the row electrodes are coupled to respective row sensing circuits, each row sensing circuit adapted to sense capacitive coupling between the respective row electrode and a probe adjacent to an external surface of the display panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of operating a display panel having a plurality of pixels, a plurality of column electrodes, and a plurality of row electrodes, each pixel controlled by a corresponding one of the plurality of column electrodes and a corresponding one of the plurality of row electrodes, the method comprising:
-
forming an image on the display panel by applying respective drive signals to the plurality of column electrodes and the plurality of row electrode; and determining a location of a probe adjacent to an external surface of the display panel by sensing capacitive coupling between the probe and one or more of the column electrodes and one or more of the row electrodes. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
Specification