Display device
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United States of America Patent
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May 10, 2016
Grant Date -
Jul 31, 2014
app pub date -
Jan 10, 2014
filing date -
Jan 10, 2014
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
According to one embodiment, a display device includes a display pixel allocated at a matrix state in a display area, an image-reading device which detects strength of capacitive coupling by a dielectric material coming close to or making contact with the display area, and a control portion which controls each transistor of the image-reading device. The image-reading device includes a detection electrode which forms capacitance between the detection electrode and the dielectric material, a pre-charge gate line, a coupling pulse line, a readout gate line, a pre-charge line and a readout line. These lines supply a signal which drives the image-reading device. The image-reading device further includes a pre-charge transistor, an amplification transistor, a readout transistor, a compensation transistor, and a power-source switching transistor.
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