Liquid crystal panel having touch sensor function

Liquid crystal panel having touch sensor function

A liquid crystal panel capable of sensing a touch includes a TFT substrate 1; a CF substrate 2 arranged so as to be opposed to the TFT substrate 1; a liquid crystal layer 3 interposed between the TFT substrate 1 and the CF substrate 2; touch drive electrodes Tx arranged on a liquid crystal layer 3 s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Kagawa, Haruhito, Ogata, Kohji, Yada, Naoki
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CALCULATING
COMPUTING
COUNTING
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
ELECTRIC DIGITAL DATA PROCESSING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
FREQUENCY-CHANGING
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
SEMICONDUCTOR DEVICES
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:A liquid crystal panel capable of sensing a touch includes a TFT substrate 1; a CF substrate 2 arranged so as to be opposed to the TFT substrate 1; a liquid crystal layer 3 interposed between the TFT substrate 1 and the CF substrate 2; touch drive electrodes Tx arranged on a liquid crystal layer 3 side of the CF substrate 2; touch detection electrodes Rx arranged on a side of the CF substrate 2 opposite to the liquid crystal layer 3; a pressing detection electrode Fx arranged on a liquid crystal layer 3 side of the TFT substrate 1; and a control unit that supplies a driving signal to the touch drive electrodes Tx and detects detection signals output from the touch detection electrodes Rx, thereby detecting a touch position, and that detects amounts of change in electrostatic capacitances generated between the touch drive electrodes Tx and the pressing detection electrode Fx, thereby detecting pressing when touched.