Display apparatus and method for driving the same

摘要

A display apparatus includes: a display panel including first to third sub pixels which receive a first grayscale data, a second grayscale data and a third grayscale data, respectively; a light source part which provides light to the display panel and sequentially turns on first and second light sources, which emit a first light and a second light having a color different from the first light, respectively; and a color conversion layer including a first photoluminescence part which is excited by the first light to emit light having a first primary color, a second photoluminescence part which is excited by the first light to emit light having a second primary color, and a third photoluminescence part which is excited by the first light to emit light having a third primary color, where the first to third photoluminescence parts overlap the first to third sub pixels, respectively.

主权项

1. A display apparatus comprising:
a display panel comprising:
a first sub pixel configured to receive a first grayscale data;a second sub pixel configured to receive a second grayscale data; anda third sub pixel configured to receive a third grayscale data; a light source part configured to provide light to the display panel and to sequentially turn on a first light source and a second light source, wherein light source part comprises: the first light source configured to emit a first light; and the second light source configured to emit a second light having a color different from the first light; and a color conversion layer comprising:
a first photoluminescence part which overlaps the first sub pixel and is excited by the first light to emit a first excitation light having a first primary color;a second photoluminescence part which overlaps the second sub pixel and is excited by the first light to emit a second excitation light having a second primary color; anda third photoluminescence part which overlaps the third sub pixel and is excited by the first light to emit a third excitation light having a third primary color, wherein a first maximum value of a frame is defined as the greater of a maximum value of a first converted value corresponding to the first grayscale data during the frame and a maximum value of a second converted value corresponding to the second grayscale data during the frame, when the first maximum value of the frame is greater than an external quantum efficiency of the color conversion layer, the light source part is configured to turn on the first light source during a first sub frame of the frame and to turn on the second light source during a second sub frame of the frame, and when the first maximum value of the frame is less than or equal to the external quantum efficiency, the light source part is configured to turn on the first light source during the first sub frame of the frame and to turn off the second light source during the second sub frame of the frame.