Temperature sensor, method for manufacturing temperature sensor, and display device to which temperature sensor is applied

A method for manufacturing a temperature sensor, the method comprising:

• forming a sensor unit including an organic light emitting layer having a delayed fluorescent material on a first electrode;
• forming a temperature transfer unit for transferring an external temperature to the sensor unit in a partial area on the sensor unit;
• forming a temperature intercept unit on the sensor unit to be adjacent to a side of the temperature transfer unit;
• forming a second electrode on the sensor unit to be adjacent to a side of the temperature intercept unit, the second electrode being spaced apart from the temperature transfer unit;
• and
• forming a light intensity measuring unit on the second electrode to measure intensity of light emitted from the organic light emitting layer,
• wherein the temperature intercept unit intercepts a temperature transfer to the second electrode from the temperature transfer unit.