US 9,812,071 B2
Display device, display system, video output device, and control method of display device
Katsuyuki Matsui, Tokyo (JP)
Assigned to NEC Display Solutions, Ltd., Tokyo (JP)
Appl. No. 14/889,172
Filed by NEC Display Solutions, Ltd., Tokyo (JP)
PCT Filed May 22, 2013, PCT No. PCT/JP2013/064192
§ 371(c)(1), (2) Date Nov. 5, 2015,
PCT Pub. No. WO2014/188533, PCT Pub. Date Nov. 27, 2014.
Prior Publication US 2016/0086551 A1, Mar. 24, 2016
Int. Cl. G09G 3/34 (2006.01)
CPC G09G 3/3413 (2013.01) [G09G 2320/0242 (2013.01); G09G 2320/045 (2013.01); G09G 2320/0626 (2013.01); G09G 2320/0633 (2013.01); G09G 2320/0666 (2013.01); G09G 2330/021 (2013.01); G09G 2360/145 (2013.01); G09G 2360/16 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A display device comprising:
an emission part including a first light source emitting a first light, a second light source emitting a second light having a longer wavelength than the first light, and a fluorescent substance which is excited by the first light and the second light so as to emit a third light; and
a controller configured to generate a drive value of the first light source and a drive value of the second light source based on a luminance of the first light, a luminance of the second light, a luminance of the third light, a first target luminance for the first light source, a second target luminance for the second light source, and a third target luminance for the fluorescent substance, thus controlling two light sources based on the drive values of the first and second light sources,
wherein the controller determines the drive value of the second light source such that the luminance of the second light matches the second target luminance, and
wherein the controller further increases the drive value of the first light source such that the luminance of the first light matches the first target luminance when the luminance of the first light is smaller than the first target luminance at a time at which the controller determines the drive value of the first light source such that the luminance of the third light matches the third target luminance.