Abstract: Embodiments of a display device include a plurality of light emitting portions including a plurality of light emitting elements; and a sensing portion including a photoelectric conversion device, wherein the photoelectric conversion device includes a first electrode, common electrode facing the first electrode, and a hole injection layer, hole transport layer, resonance layer, and an active layer stacked between the first electrode and the common electrode, and wherein the light emitting elements include, a pixel electrode, the common electrode facing the pixel electrode, and the hole injection layer, hole transport layer, resonance layer, and a light emitting layer stacked between the pixel electrode and the common electrode, wherein a thickness of each of the resonance layers of light emitting elements are different from each other, and a thickness of the resonance layer of a light emitting element is the same as a thickness of the resonance layer.

Abstract: A display device includes display pixels arranged in a display area of a display panel, near-infrared light emitting pixels alternately arranged with the display pixels, light sensing pixels alternately arranged with the display pixels, a display scan driver that supplies display scan signals to the display pixels and the near-infrared light emitting pixels, a component detection circuit that analyzes component information according to light sensing signals reflected from a front side by using the light sensing signals received from the light sensing pixels, and a main driving circuit that controls driving timings of the display pixels, the light emitting pixels, and the display scan driver.

Abstract: A zoom method of a small digital camera is provided that includes searching a center search line of a photographic screen according to a set photographic mode and searching upper and lower lines based on the center search line so as to extract a color average value and a deviation of a photographic object. A size of a photographic object may be calculated based on the average value and the deviation. A zoom ratio may be set according to a size of the photographic object. A portrait mode and a text mode may be implemented by software without influencing a size of a mobile communication terminal and so as to fast process the zoom function.

Abstract: A zoom method of a small digital camera is provided that includes searching a center search line of a photographic screen according to a set photographic mode and searching upper and lower lines based on the center search line so as to extract a color average value and a deviation of a photographic object. A size of a photographic object may be calculated based on the average value and the deviation. A zoom ratio may be set according to a size of the photographic object. A portrait mode and a text mode may be implemented by software without influencing a size of a mobile communication terminal and so as to fast process the zoom function.