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US 10,896,633 B2Granted
Method for driving display device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsHajime Kimura, Atsushi Umezaki
Life of this patent
Estimating the term…
Abstract
To suppress degradation of a transistor. A method for driving a liquid crystal display device has a first period and a second period. In the first period, a first transistor and a second transistor are alternately turned on and off repeatedly, and a third transistor and a fourth transistor are turned off. In the second period, the first transistor and the second transistor are turned off, and the third transistor and the fourth transistor are alternately turned on and off repeatedly. Accordingly, the time during which the transistor is on can be reduced, so that degradation of characteristics of the transistor can be suppressed.
Claims14
A display device comprising:
- a circuit including a transistor;
- a first conductive layer including a first opening;
- a second conductive layer including a second opening;
- a third conductive layer including a third opening;
- a fourth conductive layer including a fourth opening;
- a fifth conductive layer including a fifth opening;
- a sixth conductive layer including a sixth opening;
- and
- a seventh conductive layer,
- wherein each of the first conductive layer, the second conductive layer, the third conductive layer, the fourth conductive layer, the fifth conductive layer, and the sixth conductive layer includes a region extending in a first direction,
- wherein the seventh conductive layer includes a region extending in a second direction crossing the first direction,
- wherein the seventh conductive layer is electrically connected to the first conductive layer,
- wherein the seventh conductive layer includes regions overlapping with the second opening, the third opening, the fourth opening, the fifth opening, and the sixth opening, and
- wherein the seventh conductive layer is electrically connected to a scan line through the transistor.
11 more elements
A display device comprising:
- a circuit including a transistor;
- a first conductive layer including a first opening;
- a second conductive layer including a second opening;
- a third conductive layer including a third opening;
- a fourth conductive layer including a fourth opening;
- a fifth conductive layer including a fifth opening;
- a sixth conductive layer including a sixth opening;
- and
- a seventh conductive layer,
- wherein each of the first conductive layer, the second conductive layer, the third conductive layer, the fourth conductive layer, the fifth conductive layer, and the sixth conductive layer includes a region extending in a first direction,
- wherein the seventh conductive layer includes a region extending in a second direction crossing the first direction,
- wherein the seventh conductive layer is electrically connected to the first conductive layer,
- wherein the seventh conductive layer includes regions overlapping with the second opening, the third opening, the fourth opening, the fifth opening, and the sixth opening,
- wherein each width of the first opening, the second opening, the third opening, the fourth opening, the fifth opening, and the sixth opening is larger than a width of the seventh conductive layer, and
- wherein the seventh conductive layer is electrically connected to a scan line through the transistor.
12 more elements
A display device comprising:
- a circuit including a transistor;
- a first conductive layer including a first opening;
- a second conductive layer including a second opening;
- a third conductive layer including a third opening;
- a fourth conductive layer including a fourth opening;
- a fifth conductive layer including a fifth opening;
- a sixth conductive layer including a sixth opening;
- and
- a seventh conductive layer,
- wherein each of the first conductive layer, the second conductive layer, the third conductive layer, the fourth conductive layer, the fifth conductive layer, and the sixth conductive layer includes a region extending in a first direction,
- wherein the seventh conductive layer includes a region extending in a second direction crossing the first direction,
- wherein the seventh conductive layer is electrically connected to the first conductive layer through a contact,
- wherein the seventh conductive layer includes regions overlapping with the second opening, the third opening, the fourth opening, the fifth opening, and the sixth opening, and
- wherein the seventh conductive layer is electrically connected to a scan line through the transistor.
11 more elements
Dependencies are inferred from the claim text.