PIXEL-ALIGNED ELECTRODE DEVICE

• US 20140085251A1
• Filed: 09/26/2012
• Published: 03/27/2014
• Est. Priority Date: 08/16/2012
• Status: Active Grant

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Cok, Ronald Steven
• Granted Patent: US 9,244,558 B2
• Time in Patent Office: Days
• US Class Current: 345/174
• 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 display device includes a display having an array of pixels formed on a display layer, the pixels arranged into rows and columns. Two or more electrodes are located over the display layer on an electrode layer different from the display layer and extend across at least a portion of the array of pixels. Each electrode extends exclusively over all of the pixels in a row or column.

Claims

1. A display device, comprising:

a display having an array of pixels formed on a display layer, the pixels arranged into rows and columns;

two or more electrodes located over the display layer in an electrode layer different from the display layer and extending across at least a portion of the array of pixels; and

wherein each electrode extends exclusively over all of the pixels in a row or column.

2. The display device of claim 1, wherein each electrode extends exclusively over all of the pixels in multiple adjacent rows or columns.

3. The display device of claim 1, wherein the electrodes include micro-wires.

4. The display device of claim 1, wherein the electrodes are partially transparent.

5. The display device of claim 1, wherein the electrode layer is in a common substrate stack with the display layer.

6. The display device of claim 1, wherein the electrode layer is an electrode substrate having a first electrode substrate side and a second electrode substrate side opposed to the first electrode substrate side and the electrodes are formed on or over the first electrode substrate side.

7. The display device of claim 6, wherein the electrodes are located between the electrode substrate and the pixels.

8. The display device of claim 6, wherein the electrode substrate is located between the electrodes and the pixels.

9. The display device of claim 1, wherein the display layer is a substrate having a first display substrate side and a second display substrate side opposed to the first display substrate side and the pixels are formed on or over the first display substrate side.

10. The display device of claim 9, wherein the electrodes are formed on or over the second display substrate side.

11. The display device of claim 9, wherein the electrodes are formed on or over the first display substrate side.

12. The display device of claim 9, further including a display cover located over the pixels and wherein the electrodes are formed on or over the display cover.

13. The display device of claim 1, wherein the display layer is a substrate, the electrode layer is a substrate, and the display substrate is laminated to the electrode substrate.

14. The display device of claim 1, wherein adjacent rows or columns of pixels are offset.

15. The display device of claim 14, wherein one or more electrodes are not rectangular.