Display apparatus, display control apparatus, and display control method as well as program
View Patent ↗A display apparatus includes: a plurality of pixel circuits arrayed in a matrix fashion; a light emitting circuit provided to each pixel circuit and emitting light correspondingly to a drive current; and a detection circuit provided to a predetermined pixel circuit and outputting a signal according to a temperature that varies with luminance of the light emitting circuit.
1. A display apparatus comprising:
a plurality of pixel circuits arrayed in a matrix fashion;
a light emitting circuit provided for each pixel circuit and configured to emit light according to a drive current; and
a detection circuit provided for a predetermined pixel circuit and configured to output a signal according to a temperature that varies with luminance of the light emitting circuit, wherein,
the detection circuit includes a PIN (p-intrinsic-n) diode and at least two switches, and
one terminal of each switch is directly connected to an anode of the PIN diode, and
wherein the detection circuit, when a constant current is flown between the anode and a cathode of the PIN diode by driving the PIN diode by forward bias, outputs potential at the anode as the signal.
2. The display apparatus according to claim 1 , wherein the detection circuit, when a constant current is flown between the anode and a cathode of the PIN diode by driving the PIN diode by forward bias, outputs a potential difference between potential at the anode and potential at the cathode as the signal.
3. The display apparatus according to claim 1 or 2 , wherein the at least two switches are used to control a current supplied to the PIN diode.
4. The display apparatus according to claim 1 or 2 , wherein the PIN diode of the detection circuit is at a position adjacent to the light emitting circuit.
5. A display control apparatus comprising:
display means including (a) a plurality of pixel circuits arrayed in a matrix, (b) a light emitting circuit provided for each pixel circuit and configured to emit light according to a drive current, and (c) a detection circuit provided for a predetermined pixel circuit and configured to output a signal according to a temperature that varies with luminance of the light emitting circuit;
temperature calculation means for calculating the temperature on the basis of the signal outputted from the detection circuit; and
correction means for correcting the drive current supplied to the light emitting circuit on the basis of the temperature calculated by the temperature calculation means,
wherein,
the detection circuit includes a PIN (p-intrinsic-n) diode and at least two switches, and
one terminal of each switch is directly connected to an anode of the PIN diode, and
wherein the detection circuit, when a constant current is flown between the anode and a cathode of the PIN diode by driving the PIN diode by forward bias, outputs potential at the anode as the signal.
6. A display control method of a display control apparatus that controls a display of a video and includes display means including (a) a plurality of pixel circuits arrayed in a matrix, (b) a light emitting circuit provided for each pixel circuit and configured to emit light according to a drive current, and (c) a detection circuit provided for a predetermined pixel circuit and configured to output a signal according to a temperature that varies with luminance of the light emitting circuit, comprising the steps of:
calculating the temperature on the basis of the signal outputted from the detection circuit; and
correcting the drive current supplied to the light emitting circuit on the basis of the calculated temperature,
wherein,
the detection circuit includes a PIN (p-intrinsic-n) diode and at least two switches, and
one terminal of each switch is directly connected to an anode of the PIN diode, and
wherein the detection circuit, when a constant current is flown between the anode and a cathode of the PIN diode by driving the PIN diode by forward bias, outputs potential at the anode as the signal.
7. A non-transitory computer-readable medium having instructions recorded thereon, wherein the instructions, when read by a computer, cause the computer to function as a display control apparatus that controls a display of a video and includes (a) a plurality of pixel circuits arrayed in a matrix, (b) a light emitting circuit provided for each pixel circuit and configured to emit light according to a drive current, and (c) a detection circuit provided for a predetermined pixel circuit and configured to output a signal according to a temperature that varies with luminance of the light emitting circuit, wherein the instructions cause the computer to function as follows:
calculating the temperature on the basis of the signal outputted from the detection circuit; and
correction means for correcting the drive current supplied to the light emitting circuit on the basis of the temperature calculated by the temperature calculation means,
wherein,
the detection circuit includes a PIN (p-intrinsic-n) diode and at least two switches, and
one terminal of each switch is directly connected to an anode of the PIN diode, and
wherein the detection circuit, when a constant current is flown between the anode and a cathode of the PIN diode by driving the PIN diode by forward bias, outputs potential at the anode as the signal.
8. A display control apparatus comprising:
a display unit including (a) a plurality of pixel circuits arrayed in a matrix, (b) a light emitting circuit provided for each pixel circuit and configured to emit light according to a drive current, and (c) a detection circuit provided for a predetermined pixel circuit and configured to output a signal according to a temperature that varies with luminance of the light emitting circuit;
a temperature calculation unit configured to calculate the temperature on the basis of the signal outputted from the detection circuit; and
a correction unit configured to correct the drive current supplied to the light emitting circuit on the basis of the temperature calculated by the temperature calculation unit,
wherein,
the detection circuit includes a PIN (p-intrinsic-n) diode and at least two switches, and
one terminal of each switch is directly connected to an anode of the PIN diode, and
wherein the detection circuit, when a constant current is flown between the anode and a cathode of the PIN diode by driving the PIN diode by forward bias, outputs potential at the anode as the signal.