DISPLAY DEVICE HAVING POSITION INPUT FUNCTION
First Claim
1. A display device having a position input function comprising:
- a pixel electrode;
a common electrode arranged to at least partially overlap with the pixel electrode via an insulating film;
a plurality of position detection electrodes obtained by dividing the common electrode, the plurality of position detection electrodes forming an electrostatic capacitance between a positon input body performing position input and the position detection electrodes and detecting a position of the position input performed by the position input body;
a position detection line connected to the position detection electrode and supplying a position detection signal and a common signal for bringing the position detection electrode into a reference potential in a time-divisional manner;
a first line through which a drive signal is transmitted;
a second line extending to cross the first line; and
a switching element connected to the first line, the second line and the position detection electrode, the switching element connecting the second line to the position detection electrode when driven by the drive signal transmitted to the first line.
1 Assignment
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Accused Products
Abstract
A display device having position input function includes: a pixel electrode; a common electrode at least partially overlapping with the pixel electrode via an insulating film; position detection electrodes obtained by dividing the common electrode, forming capacitance between a positon input body performing position input and the position detection electrodes, and detecting an input position by the position input body; a position detection line supplying a position detection signal and a common signal for bringing the position detection electrode into a reference potential in a time-divisional manner; a first line through which a drive signal is transmitted; a second line crossing the first line; and a switching element connected to the first line, the second line and the position detection electrode, the switching element connecting the second line to the position detection electrode when driven by the drive signal transmitted to the first line.
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Citations
15 Claims
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1. A display device having a position input function comprising:
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a pixel electrode; a common electrode arranged to at least partially overlap with the pixel electrode via an insulating film; a plurality of position detection electrodes obtained by dividing the common electrode, the plurality of position detection electrodes forming an electrostatic capacitance between a positon input body performing position input and the position detection electrodes and detecting a position of the position input performed by the position input body; a position detection line connected to the position detection electrode and supplying a position detection signal and a common signal for bringing the position detection electrode into a reference potential in a time-divisional manner; a first line through which a drive signal is transmitted; a second line extending to cross the first line; and a switching element connected to the first line, the second line and the position detection electrode, the switching element connecting the second line to the position detection electrode when driven by the drive signal transmitted to the first line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification