IP Library Granted Patent US 10,964,773
Granted Patent B2
US 10,964,773 · App. 16/905,381 · Granted Mar 30, 2021

Organic electroluminescent device including arrangement of capacitive electrode between layer of other capacitive electrode and layer of gate electrode

Inventors: Hitoshi Ota (Shiojiri, JP); Ryoichi Nozawa (Shiojiri, JP)
Assignee: SEIKO EPSON CORPORATION
H01L27/3276G09G3/3225H01L27/3248H01L27/3262H01L27/3265H01L27/124H01L27/1255
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Quick Facts
Patent No.
US 10,964,773
App. No.
16/905,381
Granted
Mar 30, 2021
Kind
B2
Abstract

An organic electroluminescent device includes a first transistor, a power supply line layer connected to one current terminal of the first transistor, a capacitive element including a first capacitive electrode connected to a gate of the first transistor, and a second capacitive electrode, a signal line, and a pixel electrode connected to the other current terminal of the first transistor, the first capacitive electrode is provided on a layer over the gate of the first transistor, and the power supply line layer is provided on a layer between the first capacitive electrode and the signal line.

Claims (43)

1. An organic electroluminescent device, comprising:

a first transistor including:

a first gate electrode; and

a first source/drain region;

a second transistor including:

a second gate electrode; and

a second source/drain region;

a pixel electrode electrically connected to the first source/drain region;

a signal line electrically connected to the second source/drain region;

a scanning line electrically connected to the second gate electrode; and

a capacitive element including:

a first capacitive electrode that is electrically connected to the first gate electrode and that is disposed in a layer between the first gate electrode and the pixel electrode; and

a second capacitive electrode that is supplied with a power supply potential and that is disposed in a layer between the first capacitive electrode and the signal line, the second capacitive electrode overlapping with the first transistor in plan view.

2. The organic electroluminescent device according to claim 1 , wherein

the second capacitive electrode overlaps with the second transistor in plan view.

3. The organic electroluminescent device according to claim 1 , further comprising a conductive layer disposed in a layer between the pixel electrode and the first capacitive electrode, wherein

the conductive layer is electrically connected to the second capacitive electrode.

4. The organic electroluminescent device according to claim 2 , further comprising a conductive layer disposed in a layer between the pixel electrode and the first capacitive electrode, wherein

the conductive layer is electrically connected to the second capacitive electrode.

5. The organic electroluminescent device according to claim 3 , wherein

the conductive layer includes aluminum.

6. The organic electroluminescent device according to claim 4 , wherein

the conductive layer includes aluminum.

7. The organic electroluminescent device according to claim 3 , wherein

the conductive layer overlaps with the first transistor in plan view.

8. The organic electroluminescent device according to claim 4 , wherein

the conductive layer overlaps with the first transistor in plan view.

9. The organic electroluminescent device according to claim 5 , wherein

the conductive layer overlaps with the first transistor in plan view.

10. The organic electroluminescent device according to claim 6 , wherein

the conductive layer overlaps with the first transistor in plan view.

11. The organic electroluminescent device according to claim 5 , wherein

the conductive layer overlaps with the second transistor in plan view.

12. The organic electroluminescent device according to claim 6 , wherein

the conductive layer overlaps with the second transistor in plan view.

13. The organic electroluminescent device according to claim 7 , wherein

the conductive layer overlaps with the second transistor in plan view.

14. The organic electroluminescent device according to claim 8 , wherein

the conductive layer overlaps with the second transistor in plan view.

15. The organic electroluminescent device according to claim 9 , wherein

the conductive layer overlaps with the second transistor in plan view.

16. The organic electroluminescent device according to claim 10 , wherein

the conductive layer overlaps with the second transistor in 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 2014-179300 · Sep 3, 2014 · national
Continuity (6)
Continuation 16546908 · Aug 21, 2019
Division 16220449 · Dec 14, 2018
Continuation 15805863 · Nov 7, 2017
Continuation 15455943 · Mar 10, 2017
Continuation 14831522 · Aug 20, 2015
Related Publication 20200321422A1 · Oct 8, 2020