LIQUID CRYSTAL DISPLAY DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
N/A
app pub date -
Oct 9, 2014
filing date -
May 21, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
To achieve improved detection accuracy and time and position resolutions in an in-cell type capacitive touch sensor embedded in a liquid crystal panel of a liquid crystal display device, a drive electrode of the touch sensor is formed in a boundary region for separating pixel electrodes formed on a surface of a TFT substrate on a liquid crystal side, and a detection electrode is formed in a region of an opposing substrate that opposes the boundary region. A drive signal is supplied to the drive electrode to cause a voltage change, and based on the voltage change in the detection electrode caused thereby, a capacitance change in an opposing part between the drive electrode and the detection electrode is detected, to thereby detect contact of an object to a display surface near the opposing part in a liquid crystal panel.
First Claim
Other Claims data not available