Photoelectric conversion device and method for operating the same
First Claim
Patent Images
1. A photoelectric conversion device comprising:
- a photodiode;
a first transistor;
a plurality of second transistors; and
a third transistor,wherein an anode of the photodiode is electrically connected to a drain electrode and a gate electrode of the first transistor, and gate electrodes of the plurality of second transistors,wherein a cathode of the photodiode and drain electrodes of the plurality of second transistors are electrically connected to a first terminal,wherein a source electrode of the first transistor and source electrodes of the plurality of second transistors are electrically connected to a second terminal,wherein the third transistor is a diode-connected transistor, andwherein the third transistor is electrically connected in parallel with the photodiode.
1 Assignment
0 Petitions
Accused Products
Abstract
In a photoelectric conversion device including a photodiode and a current mirror circuit, a diode-connected transistor is provided in parallel with the photodiode. The transistor serves as a leakage path for rapidly discharging charge stored in the gate capacitance in the current mirror circuit. Thus, the response speed of the photoelectric conversion device is increased, and output of an abnormal value is reduced.
-
Citations
23 Claims
-
1. A photoelectric conversion device comprising:
-
a photodiode; a first transistor; a plurality of second transistors; and a third transistor, wherein an anode of the photodiode is electrically connected to a drain electrode and a gate electrode of the first transistor, and gate electrodes of the plurality of second transistors, wherein a cathode of the photodiode and drain electrodes of the plurality of second transistors are electrically connected to a first terminal, wherein a source electrode of the first transistor and source electrodes of the plurality of second transistors are electrically connected to a second terminal, wherein the third transistor is a diode-connected transistor, and wherein the third transistor is electrically connected in parallel with the photodiode. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A photoelectric conversion device comprising:
-
a photodiode; a first transistor; a plurality of second transistors; and a third transistor, wherein an anode of the photodiode is electrically connected to a drain electrode and a gate electrode of the first transistor, gate electrodes of the plurality of second transistors, and a drain electrode and a gate electrode of the third transistor, wherein a cathode of the photodiode, drain electrodes of the plurality of second transistors, and a source electrode of the third transistor are electrically connected to a first terminal, wherein a source electrode of the first transistor and source electrodes of the plurality of second transistors are electrically connected to a second terminal, wherein the third transistor is a diode-connected transistor, and wherein the third transistor is electrically connected in parallel with the photodiode. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A photoelectric conversion device comprising:
-
a photodiode; a first transistor; a plurality of second transistors; and a third transistor, wherein a cathode of the photodiode is electrically connected to a drain electrode and a gate electrode of the first transistor, and gate electrodes of the plurality of second transistors, wherein a source electrode of the first transistor and source electrodes of the plurality of second transistors are electrically connected to a first terminal, wherein an anode of the photodiode and drain electrodes of the plurality of second transistors are electrically connected to a second terminal, wherein the third transistor is a diode-connected transistor, and wherein the third transistor is electrically connected in parallel with the photodiode. - View Dependent Claims (14, 15, 16, 17, 18)
-
-
19. A photoelectric conversion device comprising:
-
a photodiode; a first transistor; a plurality of second transistors; and a third transistor, wherein a cathode of the photodiode is electrically connected to a drain electrode and a gate electrode of the first transistor, gate electrodes of the plurality of second transistors, and a source electrode of the third transistor, wherein a source electrode of the first transistor, source electrodes of the plurality of second transistors, and a drain electrode and a gate electrode of the third transistor are electrically connected to a first terminal, wherein an anode of the photodiode and drain electrodes of the plurality of second transistors are electrically connected to a second terminal, wherein the third transistor is a diode-connected transistor, and wherein the third transistor is electrically connected in parallel with the photodiode. - View Dependent Claims (20, 21, 22, 23)
-
Specification