IP Library Granted Patent US 8,198,636
Granted Patent B2
US 8,198,636 · App. 12/959,916 · Granted Jun 12, 2012

Light-emitting device and electronic apparatus

Assignee: Seiko Epson Corporation
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Quick Facts
Patent No.
US 8,198,636
App. No.
12/959,916
Granted
Jun 12, 2012
Kind
B2
Abstract

A light-emitting device includes a power feeding line to which a predetermined voltage is supplied; a light-emitting element formed of a first electrode, a second electrode, and a light-emitting layer interposed between the first electrode and the second electrode; and a driving transistor that controls the amount of current supplied to the light-emitting element from the power feeding line. The power feeding line includes a portion interposed between the first electrode and the driving transistor.

Claims (21)

1. A light-emitting device comprising:

a data line through which a data signal is supplied;

a light-emitting element in which a light-emitting layer is interposed between a first electrode and a second electrode;

a power feeding line through which a predetermined potential is supplied; and

a driving transistor that controls a level of a current which flows through the light-emitting element according to the data signal, the driving transistor being electrically connected between the light-emitting element and the power feeding line when the current flows through the light-emitting element,

the power feeding line including a portion interposed between the first electrode and the data line, and the portion of the power feeding line overlapping the data line.

2. The light-emitting device according to claim 1 , further comprising:

a selecting transistor configured to be in an on state or an off state according to a selection signal, and

a gate electrode of the driving transistor configured to be set at a potential corresponding to the data signal supplied through the data line and the selecting transistor that has been in the on state, wherein

the first electrode is formed so as not to overlap the selecting transistor.

3. An electronic apparatus comprising the light-emitting device according to claim 2 .

4. The light-emitting device according to claim 1 , further comprising

an initializing transistor configured to be placed in an on state or an off state according to an initialization signal, wherein

the driving transistor is diode-connected through the initializing transistor that is placed in the on state, and

the first electrode is formed so as not to overlap the initializing transistor.

5. An electronic apparatus comprising the light-emitting device according to claim 4 .

6. An electronic apparatus comprising the light-emitting device according to claim 1 .

7. The light-emitting device according to claim 1 , further comprising:

a selection line extending in a first direction; and

a selecting transistor, a gate of the selecting transistor being electrically connected to selection line, the power feeding line extending in the first direction.

8. An electronic apparatus comprising the light-emitting device according to claim 7 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 12, 2023
From: SEIKO EPSON CORPORATION
To: LUMITEK DISPLAY TECHNOLOGY LIMITED
Reel/Frame 065221/0372 →
Priority Claims (2)
JP 2006-015370 · Jan 24, 2006 · national
JP 2006-289587 · Oct 25, 2006 · national
Continuity (2)
Continuation 11624844 · Jan 19, 2007
Related Publication 20110068707A1 · Mar 24, 2011