IP Library Granted Patent US 8,194,217
Granted Patent B2
US 8,194,217 · App. 12/539,648 · Granted Jun 5, 2012

Electro-optical apparatus and electronic device having particular pixel configuration

Assignee: Seiko Epson Corporation
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Quick Facts
Patent No.
US 8,194,217
App. No.
12/539,648
Granted
Jun 5, 2012
Kind
B2
Abstract

An electro-optical apparatus includes a pixel section, a dummy pixel section and a peripheral electrode. The peripheral electrode configured to be formed in an area surrounding the dummy pixel section. A voltage supplying section configured to supply the peripheral electrode and an opposing electrode with voltages of substantially the same level, respectively.

Claims (22)

1. An electro-optical apparatus comprising:

a substrate;

an opposing substrate opposed to the substrate;

a pixel section configured to be formed in a pixel area on the substrate, the pixel section including a pixel electrode and a transistor corresponding to the pixel electrode;

a dummy pixel section configured to be formed in an area surrounding the pixel area, the dummy pixel section including a dummy pixel electrode and a dummy transistor corresponding to the dummy pixel electrode;

a peripheral electrode configured to be formed in an area surrounding the dummy pixel section, the peripheral electrode being at least partially connected electrically to the dummy pixel electrode;

an opposing electrode configured to be opposite the pixel electrode; and

a voltage supplying section configured to supply the opposing electrode and the peripheral electrode with voltages of substantially the same level, respectively.

2. The electro-optical apparatus according to claim 1 , wherein the dummy pixel electrode is electrically connected to another dummy pixel electrode arranged adjacent thereto.

3. The electro-optical apparatus according to claim 1 , wherein the dummy pixel electrode is formed so as not to be electrically connected to the dummy transistor.

4. The electro-optical apparatus according to claim 1 , wherein patterning of the peripheral electrode is performed in a shape the same as that of at least one of the pixel electrode and the dummy pixel electrode.

5. The electro-optical apparatus according to claim 4 , wherein the peripheral electrode is electrically connected to another peripheral electrode arranged adjacent thereto.

6. The electro-optical apparatus according to claim 1 , further comprising:

a relay layer having an island shape configured to form an electric connection between the pixel electrode and the transistor; and

a capacitance line configured to be formed at a layer the same as that at which the relay layer is formed, and be formed so as to at least partially enclose the relay layer via an aperture occupying an area surrounding the relay layer.

7. The electro-optical apparatus according to claim 6 , further comprising:

a light-shielding layer configured to be formed at a layer located lower than that at which the relay layer and the capacitance line are formed, and be formed so as to at least partially cover the aperture in plan view from above the substrate.

8. The electro-optical apparatus according to claim 7 , wherein the light-shielding layer is electrically connected to the capacitance line.

9. The electro-optical apparatus according to claim 6 , further comprising:

a voltage relay layer configured to be formed at a layer the same as that at which the relay layer and the capacitance line are formed,

wherein the voltage supplying section supplies the peripheral electrode with a voltage via the voltage relay layer.

10. An electronic device comprising the electro-optical apparatus set forth in claim 1 .

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 28, 2019
From: SEIKO EPSON CORPORATION
To: 138 EAST LCD ADVANCEMENTS LIMITED
Reel/Frame 050197/0212 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 12, 2009
From: YOSHII, MASAHITO
To: SEIKO EPSON CORPORATION
Reel/Frame 023088/0578 →
Priority Claims (1)
JP 2008-247496 · Sep 26, 2008 · national
Continuity (1)
Related Publication 20100079691A1 · Apr 1, 2010