| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photosensor that stably works, and a flat panel display using the photosensor. <P>SOLUTION: The photosensor includes: a first transistor M12 connected to nodes N12, N22, N32; a second transistor M22 connected to nodes N42, N12, and a first controlling signal line COMP; a third transistor M32 connected to nodes N22, N32, and COMP; a forth transistor M42 connected to an initialization voltage line VINIT, N32, and a reset signal line RESET; a fifth transistor M52 connected to a first voltage VDD, N12, and a second controlling signal line TX; a sixth transistor M62 connected to N22, an outputting line IOUT, and TX; a seventh transistor M72 connected to a second voltage VREF2, N42, and RESET; a photodiode PD2 connected to a third voltage VREF1, and N42; a first capacitor Ctx2 connected to N32 and VDD; and a second capacitor Cst2 connected to VREF1 and N42. <P>COPYRIGHT: (C)2009,JPO&INPIT |
