US 12,306,430 B2
Light emitting unit, display, and lighting apparatus
Shingo Ohkawa, Saitama (JP); Tomoharu Nakamura, Tokyo (JP); and Gen Yonezawa, Kanagawa (JP)
Assigned to SATURN LICENSING LLC, New York, NY (US)
Filed by SATURN LICENSING LLC, New York, NY (US)
Filed on Feb. 2, 2024, as Appl. No. 18/430,765.
Application 18/430,765 is a continuation of application No. 17/369,087, filed on Jul. 7, 2021, granted, now 11,921,312.
Application 17/369,087 is a continuation of application No. 16/662,693, filed on Oct. 24, 2019, granted, now 11,086,064, issued on Aug. 10, 2021.
Application 16/662,693 is a continuation of application No. 15/880,083, filed on Jan. 25, 2018, granted, now 10,488,572, issued on Nov. 26, 2019.
Application 15/880,083 is a continuation of application No. 15/212,848, filed on Jul. 18, 2016, granted, now 9,915,769, issued on Mar. 13, 2018.
Application 15/212,848 is a continuation of application No. 13/856,033, filed on Apr. 3, 2013, granted, now 9,423,554, issued on Aug. 23, 2016.
Claims priority of application No. 2012-090214 (JP), filed on Apr. 11, 2012.
Prior Publication US 2024/0248249 A1, Jul. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/13357 (2006.01); F21V 8/00 (2006.01); H10H 20/851 (2025.01); F21K 9/64 (2016.01); G02F 1/1335 (2006.01)
CPC G02B 6/0031 (2013.01) [G02B 6/0023 (2013.01); G02B 6/0026 (2013.01); G02B 6/0055 (2013.01); G02F 1/133615 (2013.01); H10H 20/8514 (2025.01); F21K 9/64 (2016.08); G02F 1/133614 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A light emitting unit comprising:
light sources and a wavelength conversion member, the wavelength conversion member converting a wavelength of light emitted from the light sources, the wavelength conversion member including a wavelength conversion material region that includes quantum dots which are encapsulated in a material that prevents deterioration from moisture or oxygen;
a curved optical component having a light incident surface in opposition to the light sources, in which the optical component includes a light emission surface that faces a front side of the light emitting unit, the optical component is positioned such that the wavelength conversion member is between the optical component and the light sources, the optical component is spaced from the wavelength conversion member to have a void therebetween;
at least one light source substrate that supports the light sources and supplies electrical power to the light sources; and
a prevention structure having one or more concave sections, the prevention structure being arranged relative to a first light source and associated first wavelength conversion member that has an associated wavelength conversion material region such that light from the first light source is prevented from being absorbed by neighboring wavelength conversion member regions.