US 9,810,831 B2
Backlight unit of high light coupling efficiency
Yong Fan, Guangdong (CN)
Assigned to SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Shenzhen, Guangdong (CN)
Appl. No. 14/768,371
Filed by Shenzhen China Star Optoelectronics Technology Co., Ltd., Guangdong (CN)
PCT Filed Jun. 29, 2015, PCT No. PCT/CN2015/082692
§ 371(c)(1), (2) Date Aug. 17, 2015,
PCT Pub. No. WO2016/206127, PCT Pub. Date Dec. 29, 2016.
Claims priority of application No. 2015 1 0355437 (CN), filed on Jun. 24, 2015.
Prior Publication US 2017/0139117 A1, May 18, 2017
Int. Cl. F21V 8/00 (2006.01)
CPC G02B 6/0085 (2013.01) [G02B 6/0068 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A backlight unit of high light coupling efficiency, comprising:
a light guide plate;
a first light source component and a second light source component, each component disposed along one of a pair of neighboring side walls of the light guide plate, wherein the side walls extend perpendicular to one another and join about a plurality of points to define a corner; and
a heat dissipation element including a first portion contacting a first substrate of the first light source component, a second portion contacting a second substrate of the second light source component, and a third portion joining together the first and second portions substantially about the corner and contacting the first and second substrates, wherein a width of the third portion is greater than respective widths of the first and second portions, and wherein the heat dissipation element is disposed to contact a bottom of the light guide plate.