Patent attributes
In a field sequential display device, a desired chromaticity of the white level can be easily achieved and fluctuations in the white level caused by fluctuation factors such as temperature characteristics can be suppressed. A light source comprises red, green, and blue LEDs and a white LED. The white LED includes a blue LED covered with a yellow fluorescent material. One field is divided into display subfields of red, green, blue and white. Only the red LED turns on in the red display subfield, only the green LED turns on in the green display subfield, only the blue LED turns on in the blue display subfield, and only the white LED turns on in the white display subfield. A shutter is controlled in each subfield based on sub-image data of each color.
