IP Library Granted Patent US 8,895,990
Granted Patent B2
US 8,895,990 · App. 13/846,262 · Granted Nov 25, 2014

Light-emitting device and electronic apparatus having a power line with a notch portion

Inventors: Takehiko Kubota (Suwa, JP); Eiji Kanda (Suwa, JP); Ryoichi Nozawa (Tatsuno-machi, JP)
Assignee: Seiko Epson Corporation
H01L33/16H01L27/3279H01L27/326
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Quick Facts
Patent No.
US 8,895,990
App. No.
13/846,262
Granted
Nov 25, 2014
Kind
B2
Abstract

A light-emitting device includes a drive transistor for controlling the quantity of current supplied to a light-emitting element, a capacitor element electrically connected to a gate electrode of the drive transistor, and an electrical continuity portion for electrically connecting the drive transistor and the light-emitting element, these elements being disposed on a substrate. The electrical continuity portion is disposed on the side opposite to the capacitor element with the drive transistor disposed therebetween.

Claims (56)

1. A light-emitting device, comprising,

a scan line,

a data line,

a wiring that is provided in a same layer as the data line,

a drive transistor that has a gate electrode,

a light-emitting element, and

an electrical continuity portion that electrically connects the drive transistor and the light-emitting element, wherein:

the wiring extends in a direction in which the data line extends,

at least a part of the wiring and the gate electrode of the drive transistor overlap in a plan view, and

a notch portion is provided in the wiring so that the wiring and the electrical continuity portion do not overlap in the plan view.

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

the wiring is disposed in a same layer as the data line, and

the first direction is a direction in which the data line extends.

3. A light-emitting device comprising,

a substrate,

a scan line,

a data line,

a wiring that disposed in a same layer as the data line,

a drive transistor that has a gate electrode,

a light-emitting element that disposed above a principal plane of the substrate, and

an electrical continuity portion that electrically connects the drive transistor and the light-emitting element, wherein:

the wiring extends in a direction in which the data line extends,

at least a part of the wiring and the gate electrode of the drive transistor overlap in a plan view, and

a notch portion is provided in the wiring so that the wiring and the electrical continuity portion do not overlap in the plan view.

4. A light-emitting device comprising:

a light-emitting element,

a power source line,

a first transistor that is electrically connected between the light-emitting element and the power source line, and

an electrical continuity portion that electrically connects the first transistor and the light-emitting element, wherein:

the power source line extends in a first direction,

at least a part of the power source line and a gate electrode of the first transistor overlap in a plan view, and

a first notch portion is provided in the power source line so that the power source line and the electrical continuity portion do not overlap in the plan view.

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

a second transistor electrically connected between the gate electrode of the first transistor and a drain of the first transistor, and

a connecting portion that electrically connects the gate electrode of the first transistor and a source or a drain of the second transistor, wherein:

at least a part of the power source line and a gate electrode of the second transistor that overlap in the plan view, and

a second notch portion is provided in the power source line so that the power source line and the connecting portion do not overlap in the plan view.

6. The light-emitting device according to claim 4 , further comprising a capacitor element that is electrically connected to the gate electrode of the first transistor, wherein

in the first direction, the electrical continuity portion is positioned on one side of the first transistor, and

the capacitor element is positioned on the other side of the first transistor.

7. The light-emitting device according to claim 6 , wherein:

the power source line and the capacitor element have a portion that overlaps in the plan view.

8. The light-emitting device according to claim 6 , wherein:

the light-emitting element includes a first electrode electrically connected to the electrical continuity portion, a second electrode provided so as to be opposite the first electrode, and a light-emitting layer provided between the first electrode and the second electrode, and

at least a part of the first electrode overlaps with at least one of the gate electrode of the first transistor and the capacitor element in the plan view.

9. The light-emitting device according to any of claim 4 , wherein:

the first direction is a direction in which the data line extends.

10. A light-emitting device comprising:

a substrate,

a light-emitting element that disposed above a principal plane of the substrate,

a power source line,

a first transistor that is electrically connected between the light-emitting element and the power source line, and

an electrical continuity portion that electrically connects the first transistor and the light-emitting element, wherein:

the power source line extends in a first direction,

at least a part of the power source line and a gate electrode of the first transistor that overlap in a plan view when viewed from a direction perpendicular to the principal plane, and

a notch portion is provided in the power source line so that the power source line and the electrical continuity portion do not overlap in the plan view.

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 (1)
JP 2005-345298 · Nov 30, 2005 · national
Continuity (3)
Division 13347260 · Jan 10, 2012
Continuation 11552745 · Oct 25, 2006
Related Publication 20130214276A1 · Aug 22, 2013