IP Library › Granted Patent US 7,729,040
Granted Patent B2
US 7,729,040 · App. 12/389,591 · Granted Jun 1, 2010

Electrophoretic display device and electronic apparatus

Assignee: Seiko Epson Corporation
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Quick Facts
Patent No.
US 7,729,040
App. No.
12/389,591
Granted
Jun 1, 2010
Kind
B2
Abstract

An electrophoretic display device includes; a first substrate having a plurality of pixel electrodes in a display region thereof; and an electrophoretic sheet that includes a second substrate on which a common electrode, an electrophoretic layer, and an adhesive layer are laminated. The electrophoretic sheet is bonded to the display region of the first substrate via the adhesive layer. The distance between neighboring pixel electrodes among the plurality of pixel electrodes is 5 μm or more.

Claims (8)

1. An electrophoretic display device comprising:

a first substrate having a plurality of pixel electrodes in a display region thereof, a distance between neighboring pixel electrodes among the plurality of pixel electrodes being 5 μm or more, the plurality of pixel electrodes being a plurality of segment electrodes arranged in a specified pattern;

a through hole provided for each of the plurality of segment electrodes in such a manner as to extend through the first substrate and one of the segment electrodes, at a position that overlaps the segment electrode in plan view;

a connecting part, formed along and covering an inner surface of the through hole, one end of which is connected to the segment electrode and the other end of which is connected to a surface of the first substrate opposite a surface having the pixel electrodes, the connecting part having a continuous hole that continues from the one end to the other end of the connecting part, located at a central portion of the connecting part in plan view, the continuous hole having a diameter of 100 μm or less; and

an electrophoretic sheet that includes a second substrate on which a common electrode, an electrophoretic layer, and an adhesive layer are laminated, the electrophoretic sheet being bonded to the display region of the first substrate via the adhesive layer.

2. The electrophoretic display device according to claim 1 , wherein the distance between neighboring pixel electrodes among the plurality of pixel electrodes is 100 μm or less.

3. The electrophoretic display device according to claim 1 , wherein the first substrate has a switching element corresponding to each of the plurality of pixel electrodes.

4. An electronic apparatus including the electrophoretic display device according to claim 1 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 20, 2009
From: UCHIDA, MASAMI
To: SEIKO EPSON CORPORATION
Reel/Frame 022289/0163 →
Priority Claims (1)
JP 2008-066227 · Mar 14, 2008 · national
Continuity (1)
Related Publication 20090231676A1 · Sep 17, 2009