US 11,719,977 B2
Light reflecting structure, backlight module and display device
Hui-Yu Huang, Kaohsiung (TW); Hsiu-Yi Lai, Kaohsiung (TW); Shih-Cheng Hsiao, Kaohsiung (TW); Shu-An Tsai, Kaohsiung (TW); Pei-Ling Kao, Kaohsiung (TW); and I-Cheng Liu, Kaohsiung (TW)
Assigned to Radiant(Guangzhou) Opto-Electronics Co., Ltd, Guangdong (CN); and Radiant Opto-Electronics Corporation, Kaohsiung (TW)
Filed by Radiant(Guangzhou) Opto-Electronics Co., Ltd, Guangdong (CN); and Radiant Opto-Electronics Corporation, Kaohsiung (TW)
Filed on Jan. 11, 2022, as Appl. No. 17/573,621.
Application 17/573,621 is a continuation of application No. PCT/CN2020/120146, filed on Oct. 10, 2020.
Prior Publication US 2022/0137459 A1, May 5, 2022
Int. Cl. G02F 1/13357 (2006.01)
CPC G02F 1/133605 (2013.01) [G02F 1/133603 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A light reflecting structure, configured to reflect light emitted from a plurality of light-emitting units, wherein the light reflection structure comprises:
a bottom portion;
a plurality of sidewall portions standing on the bottom portion, wherein the sidewall portions respectively and correspondingly surround the light-emitting units, and the light emitted from each light-emitting unit can be directed to a reflecting surface corresponding to each of the sidewall portions to be reflected outward;
wherein there is a distance P between any two adjacent sidewall portions, and each of the sidewall portions has a height H1, and wherein the distance P and the height H1 satisfy a first inequality, and the first inequality is:

OG Complex Work Unit Math
wherein θ represents a complementary angle of a half light-intensity angle of each of the light-emitting units;
wherein the sidewall portions are connected to each other through a plurality of junction portions, and each of the junction portions is a non-steeple structure; and
wherein each of the light-emitting units emits a first portion of light, the first portion of light includes a light emitted at the half light-intensity angle, and the first portions of light emitted from any two adjacent light-emitting units pass through a location above the junction portion.