US 10,890,802 B2
Optical lens, backlight module and display device using same
Chao-Hsiung Chang, Hsinchu (TW); Lung-Hsin Chen, Hsinchu (TW); Wen-Liang Tseng, Hsinchu (TW); Pin-Chuan Chen, Hsinchu (TW); Hsin-Chiang Lin, Hsinchu (TW); and Hou-Te Lin, Hsinchu (TW)
Assigned to ADVANCED OPTOELECTRONIC TECHNOLOGY, INC., Hsinchu Hsien (TW)
Filed by ADVANCED OPTOELECTRONIC TECHNOLOGY, INC., Hsinchu Hsien (TW)
Filed on Nov. 12, 2019, as Appl. No. 16/680,784.
Claims priority of application No. 2019 1 0284016 (CN), filed on Apr. 10, 2019.
Prior Publication US 2020/0326594 A1, Oct. 15, 2020
Int. Cl. G02F 1/13357 (2006.01)
CPC G02F 1/133606 (2013.01) [G02F 1/133605 (2013.01); G02F 1/133603 (2013.01); G02F 2001/133607 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A optical lens, comprising:
a bottom surface defining a receiving space for receiving a light emitting element;
a top surface opposite to the bottom surface;
at least one inclined surface extending from an outer periphery of the bottom surface toward the top surface; and
a light-emitting surface coupling to and located between the inclined surface and the top surface, wherein the inclined surface and the bottom surface intersect to form an obtuse angle;
wherein the optical lens comprises a body portion and a base connected to the body portion, the bottom surface being a surface of the base away from the body portion, and the top surface being a surface of the body portion away from the base;
the base comprises a plurality of protrusions protruding from the body portion and spaced apart from each other, and at least one of the plurality of protrusions is formed with the inclined surface.