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US 2009/0267871 A1Published application
Switching circuit, pixel drive circuit, and sample-and-hold circuit
AssigneePioneer Corporation
InventorTakahisa Tanabe
Life of this patent
Estimating the term…
Abstract
At least two FETs are provided having controlled terminals serially connected to each other between an input terminal and an output terminal. The FET are alternatingly driven to “off” via the controlled terminals when an “off” command is present, and the FETs are simultaneously driven to “on” via the controlled terminals when an “on” command is present.
Claims12
A video signal display panel, comprising:
- a plurality of scan lines and a plurality of data lines;
- a switching circuit provided to individual display cells formed at intersections of the scan lines and the data lines, the switching circuit relaying from an input terminal to an output terminal a video data signal supplied from the data lines in response to an “on” command supplied from the scan lines, and halting the relaying from the input terminal to the output terminal in response to an “off” command supplied from the scan lines;
- and
- a display element for producing a display in response to a video data signal from the switching circuit, the display element being provided to each of the display cells;
- wherein
- the switching circuit has at least two field effect transistors (FETs) serially connected between the input terminal and the output terminal;
- and
- the FETs are driven “off” at least once within two frame periods of the video signal when the “off” command is present, and the FETs are simultaneously driven “on” when the “on” command is present.
5 more elements
(canceled)
A sample-and-hold circuit, comprising:
- a signal holding portion for holding an input signal input from an input terminal;
- an outputting portion for outputting from an output terminal an input signal held in the signal holding portion;
- and
- a switching circuit for relaying the input signal from the input terminal to the signal holding portion in response to an “on” command, and for halting the relaying of the input signal from the input terminal to the signal holding portion in response to an “off” command;
- wherein the switching circuit includes at least two FETs having controlled terminals serially connected to each other between the input terminal and the signal holding portion, and a drive portion for alternatingly driving the FETs to “off” via the controlled terminals of the FETs when the “off” command is present, and for simultaneously driving the FETs to “on” via the controlled terminals when the “on” command is present.
2 more elements
Dependencies are inferred from the claim text.