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US 7,403,177 B2Granted
Display device, driving method thereof, and electronic apparatus
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsYoshifumi Tanada, Aya Anzai
Life of this patent
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Abstract
It is characterized in that the image signal selecting the light-emission/no light-emission of the first to third light-emitting elements 112 to 114 formed by lamination is input through only the transistor for switching 107, and the specific light-emission is selectively emitted by controlling the potential of the first to third current supply lines 103 to 105.
Claims12
A display device comprising:
- a pixel comprising:
- first to (n+1)th pixel electrodes;
- first to n-th light-emitting layers that emit different emission colors;
- and
- first to n-th transistors for driving;
- first to n-th current supply lines;
- and
- a power line;
- wherein:
- the first to n-th light-emitting layers and the first to (n+1)th pixel electrodes are laminated,
- the m-th light emitting layer is interposed between the m-th pixel electrode and the (m+1) pixel electrode,
- the m-th pixel electrode is electrically connected to the m-th current supply line via the m-th transistor for driving,
- the (n+1)th pixel electrode is electrically connected to the power line,
- the potential difference between the pixel electrodes sandwiching the m-th light-emitting element is sequentially adjusted so that the m-th light-emitting element selectively emits light,
- n is a natural number, 2≦n, and
- m is a natural number, 1≦m≦n.
13 more elements
A display device comprising:
- a pixel comprising:
- first to (n+1)th pixel electrodes;
- first to n-th light-emitting layers that emit different emission colors;
- a transistor for switching;
- and
- first to n-th transistors for driving;
- a source signal line;
- a gate signal line;
- first to n-th current supply lines;
- and
- a power line;
- wherein:
- the first to n-th light-emitting layers and the first to (n+1)th pixel electrodes are laminated,
- the m-th light emitting layer is interposed between the m-th pixel electrode and the (m+1)th pixel electrode,
- a gate electrode of the transistor for switching is electrically connected to the gate signal line,
- a first electrode of the transistor for switching is electrically connected to the source signal line,
- a second electrode of the transistor for switching is electrically connected to gate electrodes of the first to n-th transistors for driving,
- the m-th pixel electrode is electrically connected to the m-th current supply line via the m-th transistor for driving,
- the (n+1)th pixel electrode is electrically connected to the power line,
- the potential difference between the pixel electrodes sandwiching the m-th light-emitting element is sequentially adjusted so that the m-th light-emitting element selectively emits light,
- n is a natural number, 2≦n, and
- m is a natural number, 1≦m≦n.
19 more elements
Dependencies are inferred from the claim text.