Display device and electronic device including the same

A display device comprising:

• a substrate including a first area and a second area adjacent to the first area, the first area includes first pixels arranged at a first pixels per inch (PPI) and the second area includes second pixels arranged at a second PPI that is less than the first PPI;
• a data line connected to the first pixels of the first area and the second pixels of the second area;
• a gamma compensation voltage generator that divides a reference voltage and outputs a gamma compensation voltage based on the divided reference voltage;
• a data driver that converts pixel data into the gamma compensation voltage and outputs a data voltage to the data line;
• a power supplier that supplies the reference voltage;
• and
• a timing controller that generates a reference voltage control signal for controlling the reference voltage to change between a first voltage level and a second voltage level voltage that is different from the first voltage level in a boundary area between the first area and the second area that share a same data line and provides the reference voltage control signal to the power supplier,
• wherein at least one of the second pixels from the second area is applied a data voltage according to the reference voltage having the second voltage level and at least one of the first pixels from the first area that shares the same data line as the at least one of the second pixels is applied a data voltage according to the reference voltage having the first voltage level, a range of the data voltage applied to the second pixels is greater than a range of the data voltage applied to the first pixels.

A display device comprising:

• a substrate including a first area and a second area adjacent to the first area, the first area includes first pixels arranged at a first pixels per inch (PPI) and the second area includes second pixels arranged at a second PPI that is less than the first PPI;
• a data line connected to pixels of the first area and the second area;
• a gamma compensation voltage generator that divides a reference voltage and outputs a gamma compensation voltage based on the divided reference voltage;
• and
• a data driver that converts pixel data into the gamma compensation voltage and outputs a data voltage to the data line,
• wherein the reference voltage varies between a first voltage level and a second voltage level that is different from the first voltage level in a boundary area between the first area and the second area that share a same data line such that at least one of the second pixels from the second area emits light according to the reference voltage having the second voltage level and at least one of the first pixels from the first area that shares the same data line as the at least one of the second pixels emits light according to the reference voltage having the first voltage level, the light emitted by the at least one of the second pixels having a luminance that is greater than the light emitted by the at least one of the first pixels in the first area.