Display device including thermistor

1 . A display device, comprising:

a plurality of driving transistors, disposed on a substrate, and configured to drive a plurality of light-emitting elements;

at least one sensing circuit, comprising a thermistor, disposed on the substrate, and configured to generate a sensing voltage based on an input voltage; and

a controlling circuit, coupled to the plurality of driving transistors and the at least one sensing circuit, and configured to generate an offset voltage according to the sensing voltage, based on a plurality of reference tables associated with a resistance, a temperature, and a threshold voltage of each of the driving transistors, and to drive the plurality of driving transistors based on the offset voltage, wherein the controlling circuit is configured to:

look up a first reference table among the plurality of reference tables to obtain a sensed temperature according to a sensing resistance value of the thermistor;

calculate the sensed temperature to obtain an offset voltage difference for the individual threshold voltage based on a second reference table among the plurality of reference tables, comprising:

perform interpolation calculations on the sensed temperature according to the second reference table to obtain the threshold voltage corresponding to the sensed temperature; and

calculate a difference between the obtained threshold voltage and a preset threshold voltage to obtain the offset voltage difference, wherein the preset threshold voltage comprises the threshold voltage indicated in a specification of the driving transistors and a current threshold voltage of the driving transistors prior to the temperature changed; and

generate the offset voltage according to the offset voltage difference,

wherein the controlling circuit is coupled to a first terminal of the thermistor through a first pin to provide the input voltage, and is coupled to a second terminal of the thermistor and a second resistor of the at least one sensing circuit at a voltage divider node to receive the sensing voltage, the controlling circuit is further configured to calculate the sensing voltage to obtain the sensing resistance value of the thermistor based on the input voltage and voltage division information at the voltage divider node.

2 . The display device according to claim 1 , wherein the first reference table comprises a corresponding relationship between a resistance value of the thermistor and a temperature, and the second reference table comprises a corresponding relationship between the temperature and the individual threshold voltage.

3 . The display device according to claim 1 , wherein the first terminal of the thermistor receives the input voltage, the second terminal of the thermistor is coupled with a first terminal of the second resistor to output the sensing voltage, and a second terminal of the second resistor receives a reference voltage.

4 . The display device according to claim 3 , wherein a material of the second resistor comprises a polysilicon material.

5 . The display device according to claim 1 , wherein the thermistor is disposed on the substrate by means of bonding.

6 . The display device according to claim 1 , wherein the at least one sensing circuit is plural, and the thermistors in the sensing circuits are respectively disposed at different positions of the substrate.

7 . The display device according to claim 6 , wherein the sensing circuits respectively generate a plurality of sensing voltages according to the input voltage, so that the controlling circuit generates a plurality of offset voltages corresponding to different positions according to the plurality of sensing voltages based on the plurality of reference tables, and to drive the plurality of corresponding driving transistors according to the plurality of offset voltages.