IP Library Granted Patent US 9,389,482
Granted Patent B2
US 9,389,482 · App. 14/597,725 · Granted Jul 12, 2016

Electrophoresis display device, driving method of electrophoresis display device, and electronic apparatus

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,389,482
App. No.
14/597,725
Granted
Jul 12, 2016
Kind
B2
Abstract

An electrophoresis display device includes: a pair of substrates; an electrophoresis layer which is pinched between the pair of substrates, and includes a partition and electrophoresis particles that are disposed in plural regions which are divided by the partition; a display portion which includes a plurality of pixels; a pixel electrode which is formed on the plurality of pixels; a facing electrode which faces the plurality of pixel electrodes via the electrophoresis layer; a first control line and a second control line which are electrically connected to the pixel electrodes; and a shielding layer which is disposed between the first control line and the electrophoresis layer and between the second control line and the electrophoresis layer, and can perform a potential input.

Claims (46)

1. An electrophoresis display device, comprising:

a pair of substrates;

an electrophoresis layer which is pinched between the pair of substrates, and includes a partition and electrophoresis particles that are disposed in plural regions which are divided by the partition;

a display portion which includes a plurality of pixels;

a pixel electrode which is formed on each of the plurality of pixels;

a facing electrode which faces the plurality of pixel electrodes via the electrophoresis layer;

a first control line and a second control line which are electrically connected to the pixel electrodes and have a part that is not overlapped with the partition when viewed in a plan view; and

a shielding layer which is disposed between the first control line and the electrophoresis layer and between the second control line and the electrophoresis layer, is overlapped with the first control line and the second control line when viewed in a plan view, and performs a potential input.

2. The electrophoresis display device according to claim 1 ,

wherein a potential which is different from that of the pixel electrode is input into the shielding layer.

3. An electronic apparatus, comprising:

the electrophoresis display device according to claim 2 .

4. The electrophoresis display device according to claim 1 ,

wherein the same potential as the potential which is input into the facing electrode is input into the shielding layer during an image writing period.

5. An electronic apparatus, comprising:

the electrophoresis display device according to claim 4 .

6. The electrophoresis display device according to claim 1 ,

wherein a potential is input into the shielding layer so that a potential difference between the shielding layer and the facing electrode is small compared to a potential difference between the facing electrode and the pixel electrode during an image writing period.

7. An electronic apparatus, comprising:

the electrophoresis display device according to claim 6 .

8. The electrophoresis display device according to claim 1 ,

wherein a potential which is reversed with respect to a potential of the facing electrode is input into the shielding layer, for a certain period in which an image is written into the display portion.

9. An electronic apparatus, comprising:

the electrophoresis display device according to claim 8 .

10. The electrophoresis display device according to claim 1 ,

wherein a potential during an image writing operation into the display portion is input into the shielding layer.

11. The electrophoresis display device according to claim 1 ,

wherein the shielding layer is formed on the same layer as the pixel electrode.

12. The electrophoresis display device according to claim 1 ,

wherein the shielding layer is formed on a layer between the pixel electrode and the first control line and between the pixel electrode and the second control line.

13. The electrophoresis display device according to claim 12 ,

wherein the shielding layer is formed to be overlapped with an end portion of the pixel electrode when viewed in a plan view.

14. The electrophoresis display device according to claim 1 ,

wherein the shielding layer is formed to be integrated with the pixel electrode.

15. A driving method of an electrophoresis display device including a pair of substrates, an electrophoresis layer which is pinched between the pair of substrates, and includes a partition and electrophoresis particles that are disposed in plural regions which are divided by the partition, a display portion which includes a plurality of pixels, a pixel electrode which is formed on each of the plurality of pixels, a facing electrode which faces the plurality of pixel electrodes via the electrophoresis layer, a first control line and a second control line which are electrically connected to the pixel electrodes and have a part that is not overlapped with the partition when viewed in a plan view, and a shielding layer which is disposed between the first control line and the electrophoresis layer and between the second control line and the electrophoresis layer, and is overlapped with the first control line and the second control line when viewed in a plan view, comprising:

inputting a potential which is different from that of the pixel electrode into the shielding layer.

16. The driving method of an electrophoresis display according to claim 15 ,

wherein, in inputting the potential, the same potential as the potential which is input into the facing electrode is input into the shielding layer.

17. The driving method of an electrophoresis display according to claim 15 ,

wherein, in inputting the potential, the potential is input into the shielding layer so that a potential difference between the shielding layer and the facing electrode is small compared to a potential difference between the facing electrode and the pixel electrode.

18. The driving method of an electrophoresis display according to claim 15 ,

wherein inputting the potential is performed for every one frame period in which an image is written into the display portion, and polarity of the potential which is input into the shielding layer for every frame period is reversed.

19. The driving method of an electrophoresis display according to claim 15 ,

wherein inputting the potential is performed during an image writing operation into the display portion.

20. An electronic apparatus, comprising:

the electrophoresis display device according to claim 1 .

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 13, 2018
From: SEIKO EPSON CORPORATION
To: E INK CORPORATION
Reel/Frame 047072/0325 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 15, 2015
From: YAMAZAKI, KATSUNORI
To: SEIKO EPSON CORPORATION
Reel/Frame 034727/0516 →