Display apparatus capable of image scanning and driving method thereof

According to an embodiment of the present invention, a display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel. The contact sensor includes a pixel electrode forming a contact capacitance by contact with a contact means; a reset transistor where...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Kim Jong Uk, Lee Jun Suk, Yoon Ju An, Bae Byung Seong, Jeon Ho Sik, Choi Woo Young, Oh Sang A, Jeong So Hyun
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:According to an embodiment of the present invention, a display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel. The contact sensor includes a pixel electrode forming a contact capacitance by contact with a contact means; a reset transistor where a drain electrode is connected to a node where the contact capacitance is formed, and each of a gate electrode and a source electrode is connected to a first scan line to which a selective signal is applied; an amplifying transistor where a gate electrode is connected to the drain electrode of the reset transistor, and a source electrode is connected to a power input terminal; and a detecting transistor where a drain electrode is connected to the drain electrode of the amplifying transistor, a gate electrode is connected to a second scan line to which a selective signal is applied, and a source electrode is connected to a readout line detecting a current corresponding to the contact capacitance.