Display device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsAya Anzai, Mitsuaki Osame, Shunpei Yamazaki
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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.
Claims20
A display device comprising:
- a pixel comprising:
- a first transistor;
- a second transistor, wherein a gate of the second transistor is electrically connected to a gate of the first transistor so as to have a same potential as the gate of the first transistor;
- a first pixel electrode electrically connected to one of a source and a drain of the first transistor;
- and
- a second pixel electrode electrically connected to one of a source and a drain of the second transistor;
- and
- a first wiring electrically connected to the other of the source and the drain of the first transistor and the other of the source and the drain of the second transistor,
- wherein a size of the first pixel electrode is different from a size of the second pixel electrode and;
- wherein the first pixel electrode is in direct contact with the one of the source and the drain of the first transistor.
A display device comprising:
- a pixel comprising:
- a first transistor;
- a second transistor, wherein a gate of the second transistor is electrically connected to a gate of the first transistor;
- a first light-emitting element comprising a first pixel electrode electrically connected to one of a source and a drain of the first transistor;
- and
- a second light-emitting element comprising a second pixel electrode electrically connected to one of a source and a drain of the second transistor;
- and
- a first wiring electrically connected to the other of the source and the drain of the first transistor and the other of the source and the drain of the second transistor,
- wherein a size of the first pixel electrode is different from a size of the second pixel electrode and;
- wherein the first pixel electrode is in direct contact with the one of the source and the drain of the first transistor.
A display device comprising:
- a first transistor;
- a second transistor, wherein a gate of the second transistor is electrically connected to a gate of the first transistor;
- a first light-emitting element comprising:
- a first pixel electrode electrically connected to one of a source and a drain of the first transistor;
- an electroluminescent layer over the first pixel electrode;
- and
- an opposed electrode over the first pixel electrode with the electroluminescent layer interposed therebetween;
- a second light-emitting element comprising:
- a second pixel electrode electrically connected to one of a source and a drain of the second transistor;
- the electroluminescent layer over the second pixel electrode;
- and
- the opposed electrode over the second pixel electrode with the electroluminescent layer interposed therebetween;
- a first wiring electrically connected to the other of the source and the drain of the first transistor and the other of the source and the drain of the second transistor;
- a third transistor, wherein one of a source and a drain of the third transistor is electrically connected to the gate of the first transistor and the gate of the second transistor;
- a second wiring electrically connected to the other of the source and the drain of the third transistor;
- and
- a third wiring electrically connected to a gate of the third transistor,
- wherein a size of the first pixel electrode is different from a size of the second pixel electrode.
Dependencies are inferred from the claim text.