Back to results
US 2012/0056550 A1Published application
Display device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsYasunori YOSHIDA, Hajime Kimura, Shinji Maekawa, Osamu Nakamura, Shunpei Yamazaki
Life of this patent
Estimating the term…
Abstract
The invention provides an active matrix EL display device which can perform a clear multi-gray scale color display. In particular, the invention provides a large active matrix EL display device at low cost by a manufacturing method which can selectively form a pattern. Power supply lines in a pixel portion are arranged in matrix by the manufacturing method which can selectively form a pattern. Further, capacitance between wirings is reduced by providing a longer distance between adjacent wirings by the manufacturing method which can selectively form a pattern.
Claims37
A semiconductor device comprising:
- a first pixel;
- a second pixel;
- a first power supply line electrically connected to the first pixel and the second pixel;
- a second power supply line that intersects with the first power supply line, wherein the second power supply line is electrically connected to the first power supply line;
- a first line electrically connected to the first pixel;
- a second line electrically connected to the second pixel;
- and
- a gate signal line driver circuit, wherein a first terminal of the gate signal line driver circuit is electrically connected to the first line and the second line.
5 more elements
A semiconductor device comprising:
- a first pixel;
- a second pixel;
- a third pixel;
- a fourth pixel;
- a first power supply line electrically connected to the first pixel and the second pixel;
- a second power supply line that intersects with the first power supply line, wherein the second power supply line is electrically connected to the first power supply line;
- a third power supply line electrically connected to the third pixel and the fourth pixel, wherein the third power supply line intersects with the second power supply line, and wherein the third power supply line is electrically connected to the second power supply line;
- a first line electrically connected to the first pixel and the third pixel;
- a second line electrically connected to the second pixel and the fourth pixel;
- and
- a gate signal line driver circuit, wherein a first terminal of the gate signal line driver circuit is electrically connected to the first line and the second line.
8 more elements
A semiconductor device comprising:
- a first pixel;
- a second pixel;
- a third pixel;
- a fourth pixel;
- a first power supply line electrically connected to the first pixel and the second pixel;
- a second power supply line that intersects with the first power supply line, wherein the second power supply line is electrically connected to the first power supply line;
- a third power supply line electrically connected to the third pixel and the fourth pixel, wherein the third power supply line intersects with the second power supply line, and wherein the third power supply line is electrically connected to the second power supply line;
- a first line electrically connected to the first pixel and the third pixel;
- a second line electrically connected to the second pixel and the fourth pixel;
- and
- a gate signal line driver circuit, wherein a first terminal of the gate signal line driver circuit is electrically connected to the first line and the second line,
- wherein the first pixel comprises:
- a first thin film transistor whose gate terminal is electrically connected to the first line, and whose first terminal is electrically connected to a third line, wherein the third line is electrically connected to a source signal line driver circuit;
- a second thin film transistor whose first terminal is electrically connected to the first power supply line;
- a capacitor whose first terminal is electrically connected to the first power supply line, and whose second terminal is electrically connected to a second terminal of the first thin film transistor;
- and
- a light emitting element electrically connected to a second terminal of the second thin film transistor.
14 more elements
A semiconductor device comprising:
- a plurality of pixels arranged in matrix, the plurality of pixels comprising a first pixel in n-th row and a second pixel in (n+1)-th row, wherein n is an integer larger of 1 or more;
- a first power supply line electrically connected to the first pixel and the second pixel;
- a second power supply line that intersects with the first power supply line, wherein the second power supply line is electrically connected to the first power supply line;
- a first line electrically connected to the first pixel;
- a second line electrically connected to the second pixel;
- and
- a gate signal line driver circuit, wherein a first terminal of the gate signal line driver circuit is electrically connected to the first line and the second line.
4 more elements
Dependencies are inferred from the claim text.