IP Library Granted Patent US 8,355,193
Granted Patent B2
US 8,355,193 · App. 13/088,814 · Granted Jan 15, 2013

Electrophoretic display device and electronic apparatus

Inventor: Katsunori Yamazaki (Matsumoto, JP)
Assignee: Seiko Epson Corporation
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 8,355,193
App. No.
13/088,814
Granted
Jan 15, 2013
Kind
B2
Abstract

An electrophoretic display device, which includes a first substrate, a second substrate, and an electrophoretic element disposed between the first substrate and second substrate, includes a plurality of pixel electrodes provided on the first substrate and arranged in a row direction and in a column direction, and a counter electrode provided on the second substrate. In conjunction with the pixel electrodes, the counter electrode applies a voltage to the electrophoretic element. The counter electrode includes an opening portion extending in at least one of the row direction and the column direction at a location opposite an area between the pixel electrodes that are adjacent to each other.

Claims (26)

1. An electrophoretic display device including a first substrate, a second substrate, and an electrophoretic element disposed between the first substrate and the second substrate, comprising:

a plurality of pixel electrodes provided on the first substrate and arranged in a row direction and in a column direction; and

a counter electrode provided on the second substrate and configure to, in conjunction with the pixel electrodes, apply a voltage to the electrophoretic element, wherein

the counter electrode including an opening portion extending in at least one of the row direction and the column direction at a location opposite an area between the pixel electrodes adjacent to each other, and

the counter electrode includes a plurality of island-shaped portions provided at locations opposite respective ones of the plurality of pixel electrodes, a frame portion provided so as to surround a perimeter of the plurality of island-shaped portions, and coupling portions coupling the plurality of island-shaped portions to each other and coupling a predetermined one of the island-shaped portions and the frame portion.

2. An electrophoretic display device including a first substrate, a second substrate, and an electrophoretic element disposed between the first substrate and the second substrate, comprising:

a plurality of pixel electrodes provided on the first substrate and arranged in a row direction and in a column direction; and

a counter electrode provided on the second substrate and configure to in conjunction with the pixel electrodes, apply a voltage to the electrophoretic element, wherein

the counter electrode including an opening portion extending in at least one of the row direction and the column direction at a location opposite an area between the pixel electrodes adjacent to each other,

the counter electrode includes a first counter electrode having the opening portion, and a second counter electrode provided at least in an area corresponding to the opening portion and being capable of applying a voltage independently of the first counter electrode, and

the second counter electrode is provided on the second substrate, and the first counter electrode is provided on the second counter electrode with an insulating layer interposed therebetween.

3. The electrophoretic display device according to claim 2 , wherein the first counter electrode and the second counter electrode are formed in an identical layer.

4. The electrophoretic display device according to claim 1 , further comprising a color filter provided with color material layers of colors that differ in accordance with the plurality of pixel electrodes.

5. An electrophoretic display device including a first substrate, a second substrate, and an electrophoretic element disposed between the first substrate and second substrate, comprising:

a plurality of pixel electrodes provided on the first substrate and arranged in a row direction and in a column direction; and

a counter electrode provided on the second substrate and configured to, in conjunction with the pixel electrodes, apply a voltage to the electrophoretic element,

the counter electrode including a plurality of electrodes each at a location opposite one of the pixel electrodes, the plurality of electrodes being capable of individually applying a voltage.

6. The electrophoretic display device according to claim 5 , further comprising a color filter provided with color material layers of colors that differ in accordance with the plurality of electrodes.

7. An electronic apparatus comprising the electrophoretic display device according to claim 1 .

8. An electronic apparatus comprising the electrophoretic display device according to claim 2 .

9. An electronic apparatus comprising the electrophoretic display device according to claim 3 .

10. An electronic apparatus comprising the electrophoretic display device according to claim 4 .

11. An electronic apparatus comprising the electrophoretic display device according to claim 5 .

12. An electronic apparatus comprising the electrophoretic display device according to claim 6 .

13. The electrophoretic display device according to claim 2 , further comprising a color filter provided with color material layers of colors that differ in accordance with the plurality of pixel electrodes.

14. An electronic apparatus comprising the electrophoretic display device according to claim 13 .

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 Apr 18, 2011
From: YAMAZAKI, KATSUNORI
To: SEIKO EPSON CORPORATION
Reel/Frame 026152/0664 →
Priority Claims (1)
JP 2010-098853 · Apr 22, 2010 · national
Continuity (1)
Related Publication 20110261432A1 · Oct 27, 2011