Display device and electronic device including the same
First Claim
1. A display device comprising:
- a first substrate having a pixel portion in which a pixel including a transistor is provided;
a second substrate which faces the first substrate; and
a liquid crystal layer between the first substrate and the second substrate,wherein the liquid crystal layer comprises a liquid crystal material which exhibits a blue phase,wherein a gate of the transistor is electrically connected to a scan line, one of a source and a drain of the transistor is electrically connected to a signal line, and the other of the source and the drain of the transistor is electrically connected to an electrode, andwherein the transistor includes an oxide semiconductor layer a hydrogen concentration of which is 5×
1019/cm3 or less.
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Accused Products
Abstract
A low-power-consuming display device including a liquid crystal material which exhibits a blue phase is provided. A display device includes a first substrate having a pixel portion in which a pixel including a transistor is provided; a second substrate which faces the first substrate; and a liquid crystal layer between the first substrate and the second substrate; in which the liquid crystal layer includes a liquid crystal material which exhibits a blue phase; a gate of the transistor is electrically connected to a scan line, one of a source and a drain of the transistor is electrically connected to a signal line, and the other of the source and the drain of the transistor is electrically connected to an electrode; and the transistor includes an oxide semiconductor layer a hydrogen concentration of which is 5×1019/cm3 or less.
125 Citations
10 Claims
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1. A display device comprising:
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a first substrate having a pixel portion in which a pixel including a transistor is provided; a second substrate which faces the first substrate; and a liquid crystal layer between the first substrate and the second substrate, wherein the liquid crystal layer comprises a liquid crystal material which exhibits a blue phase, wherein a gate of the transistor is electrically connected to a scan line, one of a source and a drain of the transistor is electrically connected to a signal line, and the other of the source and the drain of the transistor is electrically connected to an electrode, and wherein the transistor includes an oxide semiconductor layer a hydrogen concentration of which is 5×
1019/cm3 or less. - View Dependent Claims (2, 3, 4, 5)
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6. A display device comprising:
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a first substrate having a pixel portion in which a pixel including a transistor is provided; a second substrate which faces the first substrate; and a liquid crystal layer between the first substrate and the second substrate; wherein the liquid crystal layer comprises a liquid crystal material which exhibits a blue phase, and wherein the transistor comprises a gate electrode over the first substrate, a gate insulating film over the gate electrode, an oxide semiconductor layer over the gate insulating film, a source electrode and a drain electrode which are electrically connected to the oxide semiconductor layer, an insulating film formed to cover the transistor; a first structure body and a second structure body formed over the insulating film; a pixel electrode which is electrically connected to the source electrode or the drain electrode through an opening in the insulating film and which is formed to cover the first structure body; and a common electrode formed to cover the second structure body, wherein a hydrogen concentration of the oxide semiconductor layer is 5×
1019/cm3 or less. - View Dependent Claims (7, 8, 9, 10)
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Specification