US 9,810,830 B2 | ||
Backlight module | ||
Yong Fan, Guangdong (CN) | ||
Assigned to SHENZHEN CHINA STAR OPTOELECTRON ICS TECHNOLOGY CO., LTD., Guangdong (CN) | ||
Appl. No. 14/895,965 |
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Filed by Shenzhen China Star Optoelectronics Technology Co., Ltd., Guangdong (CN) | ||
PCT Filed Aug. 14, 2015, PCT No. PCT/CN2015/086935 § 371(c)(1), (2) Date Dec. 4, 2015, PCT Pub. No. WO2017/015994, PCT Pub. Date Feb. 2, 2017. |
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Claims priority of application No. 2015 1 0460477 (CN), filed on Jul. 30, 2015. | ||
Prior Publication US 2017/0168225 A1, Jun. 15, 2017 | ||
Int. Cl. F21V 7/04 (2006.01); F21V 8/00 (2006.01) |
CPC G02B 6/0078 (2013.01) [G02B 6/002 (2013.01); G02B 6/0051 (2013.01); G02B 6/0055 (2013.01); G02B 6/0088 (2013.01); G02B 6/008 (2013.01); G02B 6/009 (2013.01)] | 9 Claims |
1. A backlight module comprising:
a back plate which includes a flat plate, first and second wedges respectively formed at both ends of the flat plate, and
a plurality of third wedges formed between the first and second wedges on the flat plate, wherein an angle between a long
inclined plane of the first wedge and the flat plate is an obtuse angle, an angle between a long inclined plane of the second
wedge and the flat plate is an acute angle, and an angle between the inclined plane of the third wedge and the flat plate
is an acute angle, wherein a side end of the first wedge that is adjacent to the third wedge and a thick side end of the third
wedge are all concave to form grooves, and wherein a side end of the second wedge that is far away from the third wedge extends
upward to form a second U-shaped cavity of which an opening faces towards the first wedge;
a first light source assembly disposed on the first wedge;
a second light source assembly disposed on the second wedge and comprising two second light source units and two second light
guide plates, wherein one of the two second light source units is disposed in the second U-shaped cavity, the other one of
the two second light source units is disposed in a groove formed by a thick side end of the adjacent third wedge, and two
light guide plates are disposed on the second wedge in a butt joint way and one of the second light guide plates is provided
with a support pillar thereon; and
a plurality of third light source assemblies, wherein each of the third light source assemblies is disposed on the corresponding
third wedge and comprises a third light source unit disposed in the corresponding groove and a third light guide plate disposed
on the third wedge adjacent to the third light source unit.
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