Patent ID: 11961478
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 1:
2. A display device, comprising:
a display area in which a plurality of first pixels is arranged at a first pixels per inch;
a sensing area in which a plurality of second pixels is arranged at a second pixels per inch that is lower than the first pixels per inch; and
controller that sets a boundary compensation area adjacent to a boundary between the display area and the sensing area and changes a compensation gain for pixel data that is to be written in at least one of the first pixels and the second pixels in the boundary compensation area, wherein the controller includes:
a luminance determination circuit that determines a luminance of the boundary portion compensation area based on a luminance of the pixel data that is to be written in the pixels in the boundary portion compensation area;
a gain change circuit that compares the luminance of the boundary portion compensation area with a luminance of the display area and a luminance of the sensing area, and when a difference between the luminances exceeds a selected allowable range, changes the compensation gain applied to the pixel data that is to be written in the first and second pixels from the first value to the second value; and
a boundary portion data modulation circuit that modulates the pixel data that is to be written in each of the sub-pixels of the first pixel and the second pixel using the compensation gain from the gain change circuit.