SENSOR AND SENSOR-EQUIPPED DISPLAY DEVICE
First Claim
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1. A sensor comprising:
- a first control line;
a first signal line;
a first detection switch connected to the first control line and the first signal line;
a common electrode located above the first control line, the first signal line and the first detection switch, opposed to the first control line, the first signal line and the first detection switch, and including a first opening opposed to the first detection switch;
a first detection electrode located above the common electrode, opposed to the first opening, and connected to the first detection switch through the first opening;
a first circuit located under the common electrode, opposed to the common electrode, connected to the first control line, and supplying a drive signal to the first control line to change a state of the first detection switch to either of a first connection state of electrical connecting the first signal line and the first detection electrode to each other and a second connection state of electrical disconnecting the first signal line and the first detection electrode from each other; and
a second circuit located under the common electrode, opposed to the common electrode and connected to the first signal line.
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Abstract
According to one embodiment, a sensor includes a first control line, a first signal line, a first detection switch, a common electrode, a first detection electrode, a first circuit and a second circuit. The common electrode is located above the first control line, the first signal line and the first detection switch, opposed to the first control line, the first signal line and the first detection switch. The first detection electrode is located above the common electrode. The first circuit and the second circuit are located under the common electrode, and are opposed to the common electrode.
30 Citations
15 Claims
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1. A sensor comprising:
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a first control line; a first signal line; a first detection switch connected to the first control line and the first signal line; a common electrode located above the first control line, the first signal line and the first detection switch, opposed to the first control line, the first signal line and the first detection switch, and including a first opening opposed to the first detection switch; a first detection electrode located above the common electrode, opposed to the first opening, and connected to the first detection switch through the first opening; a first circuit located under the common electrode, opposed to the common electrode, connected to the first control line, and supplying a drive signal to the first control line to change a state of the first detection switch to either of a first connection state of electrical connecting the first signal line and the first detection electrode to each other and a second connection state of electrical disconnecting the first signal line and the first detection electrode from each other; and a second circuit located under the common electrode, opposed to the common electrode and connected to the first signal line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A sensor comprising:
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control lines extending in a row direction; signal lines extending in a columnar direction; detection switches each connected to one of the control lines and one of the signal lines; a common electrode located above the control lines, the signal lines and the detection switches, opposed to the control lines, the signal lines and the detection switches, and including openings, each of the openings being opposed to one of the detection switches; detection electrodes located above the common electrode, each opposed to the corresponding opening and connected to the corresponding detection switch through the opening; a first circuit located under the common electrode, opposed to the common electrode, connected to the control lines, supplying the drive signal to each of the control lines, and changing a state of each of the detection switches to either of a first connection state of electrical connecting the signal line and the detection electrode to each other and a second connection state of electrical disconnecting the signal line and the detection electrode from each other; a second circuit located under the common electrode, opposed to the common electrode, and connected to the signal lines; and a first detection unit supplying a potential adjustment signal to the common electrode and controlling the drive of the first circuit and the second circuit, the first detection unit simultaneously writing write signals to four detection electrodes located in an n-th row and an n+1-th row, of an m-th column and an m+1-th column, via the second circuit, two corresponding signal lines and four corresponding detection switches, reading read signals indicating variation of the write signals from the detection electrodes, respectively, and bundling the read signals into one signal, in a first sensing period in a sensing drive for performing sensing, the first detection unit simultaneously writing write signals to four detection electrodes located in an n-th row and an n+1-th row, of an m+1-th column and an m+2-th column, via the second circuit, two corresponding signal lines and four corresponding detection switches, reading read signals indicating variation of the write signals from the detection electrodes, respectively, and bundling the read signals into one signal, in a second sensing period in the sensing drive following the first sensing period, the potential adjustment signal being synchronized with the write signals and being equivalent in phase and amplitude to the write signals, in the sensing drive. - View Dependent Claims (10)
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11. A sensor-equipped display device comprising a display panel,
the display panel comprising: -
control lines; signal lines; pixel switches each connected to one of the control lines and one of the signal lines; a common electrode disposed in a display area and an outside of the display area, located above the control lines, the signal lines and the pixel switches, opposed to the control lines, the signal lines and the pixel switches, and including openings, each of the openings being opposed to one of the pixel switches; pixel electrodes disposed in the display area and located above the common electrode, each of the pixel electrodes being opposed to the corresponding opening and connected to the corresponding pixel switch through the opening; a first circuit disposed outside the display area, located under the common electrode, opposed to the common electrode, connected to the control lines, supplying the drive signal to each of the control lines, and changing a state of each of the pixel switches to either of a first connection state of electrical connecting the signal line and the pixel electrode to each other and a second connection state of electrical disconnecting the signal line and the pixel electrode from each other; and a second circuit disposed outside the display area, located under the common electrode, opposed to the common electrode, and connected to the signal lines. - View Dependent Claims (12, 13, 14)
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15. A sensor-equipped display device comprising a display panel,
the display panel comprising: -
control lines; signal lines; pixel switches each connected to one of the control lines and one of the signal lines; pixel electrodes located in a display area and disposed above the control lines, the signal lines and the pixel switches; a detection electrode disposed above the control lines, the signal lines and the pixel switches; a first circuit disposed outside the display area, connected to the control lines, supplying a drive signal to each of the control lines, and changing a state of each of the pixel switches to either of a first connection state of electrical connecting the signal line and the pixel electrode to each other and a second connection state of electrical disconnecting the signal line and the pixel electrode from each other; and a second circuit disposed outside the display area and connected to the signal lines, the pixel electrodes and the detection electrode being disposed in a same layer.
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Specification