Patent ID: 11922869
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A display device, comprising:
a display panel including a plurality of pixels;
a display panel driver configured to drive the display panel;
a memory device configured to store a reference current-temperature model that is set for the display panel, a global offset of the display panel, which is calculated based on the reference current-temperature model, and a local offset of the display panel, which is calculated based on a characteristic difference between the pixels; and
a panel temperature determiner configured to measure sensing currents flowing through the pixels when a temperature sensing voltage is applied to the pixels, calculate correction sensing currents by applying the global offset and the local offset to the sensing currents, and determine temperatures of the pixels by adjusting the reference current-temperature model with the correction sensing currents,

wherein the global offset corresponds to a difference between a current mapped to an average temperature in the reference current-temperature model and an average of initial sensing currents flowing through the pixels when the temperature sensing voltage is applied to the pixels.