Active matrix substrate
AssigneeSharp Kabushiki Kaisha
InventorHidehiko Yamashita
Life of this patent
Estimating the term…
Abstract
Each of a plurality of source lines is connected to a video signal line via an analog switch and a read-out switch, which are turned ON/OFF by a source line driving circuit. When the analog switch of the source line is turned ON and the read-out switch thereof is turned OFF, the selected source line is connected to the video signal line, thereby writing a video signal to a storage capacitor of a picture element via a picture element transistor. When the analog switch of the source line is turned OFF and the read-out switch thereof is turned ON, a signal stored in a storage capacitor is read out from the source line to the read-out line via the picture element transistor. The read-out line is a single line shared by the plurality of source lines.
Claims16
An active matrix substrate, comprising:
- a plurality of transistors arranged in a lattice pattern on a substrate;
- a plurality of gate lines extending in parallel to one another and connected to respective gates of the plurality of transistors;
- a plurality of source lines extending in parallel to one another so as to cross the plurality of gate lines and connected to respective sources of the plurality of transistors;
- a gate line driving circuit for sending a scanning signal successively to the plurality of gate lines;
- a plurality of storage capacitors connected respectively to the plurality of transistors and to a common power supply;
- a source line driving circuit for successively selecting the plurality of source lines so as to send a video signal to the storage capacitors via the source lines being successively selected;
- and
- a read-out line for reading out charges stored in the plurality of storage capacitors via respective ones of the plurality of source lines, wherein:
- the read-out line is a single line shared by the plurality of source lines;
- and
- a plurality of switches are interposed between respective ones of the plurality of source lines and the source line driving circuit, each of the plurality of switches turning ON/OFF a connection between the source line and the source line driving circuit and turning ON/OFF a connection between the source line and the read-out line.
An active matrix substrate, comprising:
- a plurality of transistors arranged in a lattice pattern on a substrate;
- a plurality of gate lines extending in parallel to one another and connected to respective gates of the plurality of transistors;
- a plurality of source lines extending in parallel to one another so as to cross the plurality of gate lines and connected to respective sources of the plurality of transistors;
- a gate line driving circuit for sending a scanning signal successively to the plurality of gate lines;
- a plurality of storage capacitors connected respectively to the plurality of transistors and to a common power supply;
- a source line driving circuit for successively selecting the plurality of source lines so as to send a video signal to the storage capacitors via the source lines being successively selected;
- and
- a read-out line for reading out charges stored in the plurality of storage capacitors via respective ones of the plurality of source lines, wherein:
- the read-out line is a plurality of lines corresponding to the plurality of source lines, respectively;
- and
- a plurality of switches are interposed between respective ones of the plurality of source lines and the source line driving circuit, each of the plurality of switches turning ON/OFF a connection between the source line and the source line driving circuit and turning ON/OFF a connection between the source line and the read-out line.
Dependencies are inferred from the claim text.