Back to results
US 2023/0410755 A1Published application
Display device and temperature sensing method thereof
AssigneeSamsung Display Co., Ltd.
InventorsTae Hyeong AN, Jae Hoon LEE, Byung Ki CHUN
Life of this patent
Estimating the term…
Abstract
Provided is a display device comprising at least one sensing pixel including a sensing pixel circuit, a sensing unit including sensing circuit, and a temperature output unit to calculate a temperature of the display panel based on the sensing data. The sensing data is generated from a sensing pixel including a driving transistor in which a current generated according to temperature varies, and a temperature is measured from the sensing data.
Claims20
A display device comprising:
- at least one sensing pixel including a sensing pixel circuit having a driving transistor in which a current generated according to temperature varies and a non-light emitting diode connected to the sensing pixel circuit, the at least one sensing pixel being provided in a display panel;
- a sensing unit including a current sensing circuit having a sensing line which is connected to the sensing pixel circuit and has a current of the sensing pixel flowing therein, the sensing unit sensing a current generated in the driving transistor to flow in the sensing line by a predetermined repetition number of times, the sensing unit generating sensing data corresponding to the sensed current;
- and
- a temperature output unit to calculate a temperature of the display panel based on the sensing data,
- wherein, in a first sensing mode, a first sensing signal is applied to the sensing pixel, and
- wherein the first sensing signal includes a sensing data voltage, a first control signal, a second control signal, a third control signal, and a fourth control signal.
3 more elements
A temperature sensing method of a display device, the temperature sensing method comprising steps of:
- applying sensing signals to at least one sensing pixel including a sensing pixel circuit having a driving transistor in which a current generated according to temperature varies and a non-light emitting diode connected to the sensing pixel circuit, the at least one sensing pixel being provided in a display panel;
- initializing a sensing line connected to the sensing pixel;
- sensing a current generated in the driving transistor to flow in the sensing line by a predetermined repetition number of times;
- generating sensing data corresponding to the sensed current;
- and
- calculating a temperature of the display panel based on the sensing data.
3 more elements
Dependencies are inferred from the claim text.