Back to results
US 2015/0144973 A1Published application
Display device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsAya Anzai, Mitsuaki Osame, Shunpei Yamazaki
Life of this patent
Estimating the term…
Abstract
A display device having a first pixel electrode and a second pixel electrode whose areas are different from each other is provided. In the display device, the first pixel electrode and the second pixel electrode are electrically connected to a first transistor and a second transistor, respectively. Gates of the first transistor and the second transistor are electrically connected to each other. A potential is supplied to the first pixel electrode and the second pixel electrode through a wiring electrically connected to the first transistor and the second transistor.
Claims19
(canceled)
A display device comprising:
- a first source signal line;
- a second source signal line;
- a gate signal line;
- a current supply line;
- a first transistor;
- a second transistor;
- a third transistor;
- a fourth transistor;
- a first light-emitting element;
- and
- a second light-emitting element,
- wherein a gate of the first transistor is electrically connected to the gate signal line,
- wherein a first terminal of the first transistor is electrically connected to the first source signal line,
- wherein a second terminal of the first transistor is electrically connected to a gate of the second transistor,
- wherein a first terminal of the second transistor is electrically connected to the current supply line,
- wherein a second terminal of the second transistor is electrically connected to the first light-emitting element,
- wherein a gate of the third transistor is electrically connected to the gate signal line,
- wherein a first terminal of the third transistor is electrically connected to the second source signal line,
- wherein a second terminal of the third transistor is electrically connected to a gate of the fourth transistor,
- wherein a first terminal of the fourth transistor is electrically connected to the current supply line,
- wherein a second terminal of the fourth transistor is electrically connected to the second light-emitting element,
- wherein the first light-emitting element comprises:
- a first pixel electrode;
- an electroluminescent layer over the first pixel electrode;
- and
- a counter electrode over the electroluminescent layer,
- wherein the second light-emitting element comprises:
- a second pixel electrode;
- the electroluminescent layer over the second pixel electrode;
- and
- the counter electrode over the electroluminescent layer,
- wherein a color filter and the first light-emitting element are overlapped with each other, and
- wherein a size of the first pixel electrode and a size of the second pixel electrode are different from each other.
30 more elements
A display device comprising:
- a first source signal line;
- a second source signal line;
- a gate signal line;
- a current supply line;
- a first transistor;
- a second transistor;
- a third transistor;
- a fourth transistor;
- a first light-emitting element;
- and
- a second light-emitting element,
- wherein a gate of the first transistor is electrically connected to the gate signal line,
- wherein a first terminal of the first transistor is electrically connected to the first source signal line,
- wherein a second terminal of the first transistor is electrically connected to a gate of the second transistor,
- wherein a first terminal of the second transistor is electrically connected to the current supply line,
- wherein a second terminal of the second transistor is electrically connected to the first light-emitting element,
- wherein a gate of the third transistor is electrically connected to the gate signal line,
- wherein a first terminal of the third transistor is electrically connected to the second source signal line,
- wherein a second terminal of the third transistor is electrically connected to a gate of the fourth transistor,
- wherein a first terminal of the fourth transistor is electrically connected to the current supply line,
- wherein a second terminal of the fourth transistor is electrically connected to the second light-emitting element,
- wherein the first light-emitting element comprises:
- a first pixel electrode;
- an electroluminescent layer over the first pixel electrode;
- and
- a counter electrode over the electroluminescent layer,
- wherein the second light-emitting element comprises:
- a second pixel electrode;
- the electroluminescent layer over the second pixel electrode;
- and
- the counter electrode over the electroluminescent layer,
- wherein a color filter and the first light-emitting element are overlapped with each other,
- wherein a size of the first pixel electrode and a size of the second pixel electrode are different from each other, and
- wherein the color filter overlaps with the second transistor.
31 more elements
Dependencies are inferred from the claim text.