US 12,455,474 B2
Backlight display assembly and electronic device
Youming Zhang, Shenzhen (CN); Hui Ren, Shenzhen (CN); Chuangchuang Liu, Shenzhen (CN); and Zheng Zhang, Wuhan (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Jun. 28, 2024, as Appl. No. 18/758,156.
Application 18/758,156 is a continuation of application No. PCT/CN2021/142863, filed on Dec. 30, 2021.
Prior Publication US 2024/0353710 A1, Oct. 24, 2024
Int. Cl. G02F 1/13357 (2006.01)
CPC G02F 1/133606 (2013.01) [G02F 1/13362 (2013.01); G02F 1/133621 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A backlight display assembly, comprising:
a light filter layer comprising a plurality of light filter units, wherein each of the plurality of light filter units comprises a plurality of different light filters;
a spectrum splitting layer disposed on one side of the light filter layer and spaced from the light filter layer, wherein the spectrum splitting layer comprises a micro-nano structure comprising a plurality of strip structures, and wherein an arrangement direction of the plurality of strip structures corresponds to an arrangement direction of the plurality of different light filters;
a backlight layer disposed on one side of the spectrum splitting layer and away from the light filter layer;
a liquid crystal layer; and
a first polarization layer disposed between the spectrum splitting layer and the liquid crystal layer, wherein
the micro-nano structure is configured to:
separate an optical signal of a first frequency from an optical signal sent by the backlight layer; and
converge the optical signal of the first frequency onto a first light filter in the plurality of different light filters; and
the first light filter is configured to select the optical signal of the first frequency.