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US 8,797,304 B2Granted
Display device and electronic device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsJun Koyama, Takayuki Ikeda
Life of this patent
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Abstract
To increase a reading speed in a display device having a touch-panel function. The display device includes a display panel 101 and a controller substrate 115. The display panel 101 includes a pixel portion 102, source drivers 103, 104, 105, 106, 107, 108, 109, and 110, display gate drivers 111 and 112, and reading gate drivers 113 and 114. The controller substrate 115 includes a controller IC 116. The controller substrate 115 is electrically connected to the display panel 101 through a connecting FPC 117.
Claims10
A display device comprising:
- a pixel portion including at least a first region and a second region;
- a first gate driver;
- a second gate driver;
- a first source driver;
- and
- a second source driver,
- wherein the first region comprises a plurality of first pixels, each of the plurality of first pixels comprising:
- a first display portion comprising a first transistor, a first capacitor element and a first display element;
- and
- a first reading portion comprising a second transistor and a first photoelectric conversion element,
- wherein the second region comprises a plurality of second pixels, each of the plurality of second pixels comprising:
- a second display portion comprising a third transistor, a second capacitor element and a second display element;
- and
- a second reading portion comprising a fourth transistor and a second photoelectric conversion element,
- wherein the first gate driver is electrically connected to a gate of the first transistor and a gate of the third transistor,
- wherein the second gate driver is electrically connected to the gate of the first transistor and the gate of the third transistor,
- wherein the first source driver is electrically connected to one of a source and a drain of the first transistor and one of a source and a drain of the second transistor,
- wherein the second source driver is electrically connected to one of a source and a drain of the third transistor and one of a source and a drain of the fourth transistor,
- wherein the other of the source and the drain of the first transistor is electrically connected to the first capacitor element and the first display element,
- wherein the other of the source and the drain of the third transistor is electrically connected to the second capacitor element and the second display element,
- wherein the other of the source and the drain of the second transistor is electrically connected to the gate of the first transistor,
- wherein the other of the source and the drain of the fourth transistor is electrically connected to the gate of the third transistor,
- wherein the gate of the second transistor is electrically connected to the first photoelectric conversion element, and
- wherein the gate of the fourth transistor is electrically connected to the second photoelectric conversion element.
21 more elements
A display device comprising:
- a pixel portion including at least a first region and a second region;
- a first gate driver;
- a second gate driver;
- a first source driver;
- a second source driver;
- and
- a controller configured to perform signal processing on output signals from the first source driver and the second source driver concurrently,
- wherein the first region comprises a plurality of first pixels, each of the plurality of first pixels comprising:
- a first display portion comprising a first transistor, a first capacitor element and a first display element;
- and
- a first reading portion comprising a second transistor and a first photoelectric conversion element,
- wherein the second region comprises a plurality of second pixels, each of the plurality of second pixels comprising:
- a second display portion comprising a third transistor, a second capacitor element and a second display element;
- and
- a second reading portion comprising a fourth transistor and a second photoelectric conversion element,
- wherein the first gate driver is electrically connected to a gate of the first transistor and a gate of the third transistor,
- wherein the second gate driver is electrically connected to the gate of the first transistor and the gate of the third transistor,
- wherein the first source driver is electrically connected to one of a source and a drain of the first transistor and one of a source and a drain of the second transistor,
- wherein the second source driver is electrically connected to one of a source and a drain of the third transistor and one of a source and a drain of the fourth transistor,
- wherein the other of the source and the drain of the first transistor is electrically connected to the first capacitor element and the first display element,
- wherein the other of the source and the drain of the third transistor is electrically connected to the second capacitor element and the second display element,
- wherein the other of the source and the drain of the second transistor is electrically connected to the gate of the first transistor,
- wherein the other of the source and the drain of the fourth transistor is electrically connected to the gate of the third transistor,
- wherein the gate of the second transistor is electrically connected to the first photoelectric conversion element, and
- wherein the gate of the fourth transistor is electrically connected to the second photoelectric conversion element.
22 more elements
Dependencies are inferred from the claim text.