US 12,111,038 B2
Light source device and display unit
Koichi Yamamoto, Kanagawa (JP); Kenji Kobayashi, Kanagawa (JP); and Yasuhiro Nishida, Kanagawa (JP)
Assigned to SATURN LICENSING LLC, New York, NY (US)
Filed by SATURN LICENSING LLC, New York, NY (US)
Filed on Aug. 16, 2023, as Appl. No. 18/234,427.
Application 18/234,427 is a continuation of application No. 17/835,002, filed on Jun. 8, 2022, granted, now 11,774,068.
Application 17/835,002 is a continuation of application No. 16/881,498, filed on May 22, 2020, granted, now 11,396,996, issued on Jul. 26, 2022.
Application 16/881,498 is a continuation of application No. 16/449,705, filed on Jun. 24, 2019, granted, now 10,698,263, issued on Jun. 30, 2020.
Application 16/449,705 is a continuation of application No. 14/333,007, filed on Jul. 16, 2014, granted, now 10,423,031, issued on Sep. 24, 2019.
Claims priority of application No. 2013159328 (JP), filed on Jul. 31, 2013.
Prior Publication US 2024/0044476 A1, Feb. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/1335 (2006.01); F21V 9/08 (2018.01); F21V 9/30 (2018.01); F21V 13/02 (2006.01); F21V 13/08 (2006.01); F21V 13/14 (2006.01); G02F 1/13357 (2006.01)
CPC F21V 13/08 (2013.01) [F21V 9/08 (2013.01); F21V 9/30 (2018.02); F21V 13/02 (2013.01); F21V 13/14 (2013.01); G02F 1/133603 (2013.01); G02F 1/133605 (2013.01); G02F 1/133606 (2013.01); G02F 1/133609 (2013.01); G02F 1/133614 (2021.01); H01L 2224/48091 (2013.01); H01L 2224/49107 (2013.01); H01L 2224/73265 (2013.01); H01L 2924/181 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display unit comprising:
a light source device configured to emit illumination light;
a display section configured to display an image using the illumination light from the light source device,
wherein the light source device comprising:
a substrate;
a plurality of light sources disposed on the substrate;
a wavelength conversion member comprising wavelength conversion material and disposed to face the plurality of light sources, some light from the plurality of light sources passes through the wavelength conversion member in an oblique direction without colliding with the wavelength conversion material and is emitted from the wavelength conversion member, the wavelength conversion material including quantum dot particles; and
a reflective sheet disposed in a region on the substrate, the region being different from a region provided with the plurality of light sources, wherein the reflective sheet has filter characteristics allowing a reflectance to light that is wavelength-converted by the wavelength conversion member, to be different than a reflectance to light emitted from each of the light sources in which a majority of the wavelength-converted light incident on the reflective sheet is reflected and a majority of visible light incident on the reflective sheet from all other wavelengths from each of the light sources is reflected, a portion of light reflected off of the reflective sheet propagates to the wavelength conversion member and through the wavelength conversion member in an oblique direction.