US 12,435,863 B2
Reflective element and backlight module
Wen-Tai Shen, Hsinchu County (TW); and Ming Chin Tsai, Hsinchu County (TW)
Assigned to DARWIN PRECISIONS CORPORATION, Hsinchu County (TW)
Filed by DARWIN PRECISIONS CORPORATION, Hsinchu County (TW)
Filed on Dec. 28, 2023, as Appl. No. 18/398,199.
Claims priority of application No. 112119870 (TW), filed on May 29, 2023.
Prior Publication US 2024/0401774 A1, Dec. 5, 2024
Int. Cl. F21V 7/00 (2006.01); F21V 7/04 (2006.01); G02F 1/1333 (2006.01); G02F 1/13357 (2006.01); H10H 20/856 (2025.01); F21Y 101/00 (2016.01); F21Y 113/00 (2016.01)
CPC F21V 7/0066 (2013.01) [F21V 7/041 (2013.01); G02F 1/133314 (2021.01); G02F 1/133603 (2013.01); G02F 1/133605 (2013.01); H10H 20/856 (2025.01); F21Y 2101/00 (2013.01); F21Y 2113/00 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A reflective element, comprising:
a plurality of reflective cavities, wherein each of the reflective cavities comprises an upper opening, a lower opening, and a peripheral surface, wherein a peripheral-surface bottom edge of the peripheral surface is connected to the substrate, and the peripheral surface of each of the reflective cavities comprises a plurality of side surfaces; and
a plurality of spacers, wherein each of the spacers comprises a bottom surface, a first inclined surface, and a second inclined surface, wherein the bottom surface is connected to the first inclined surface and the second inclined surface, the spacers are disposed on the substrate, the bottom surface of each of the spacers is flush with the peripheral-surface bottom edge, the first inclined surface and the second inclined surface respectively serve as the side surfaces of adjacent two of the reflective cavities;
wherein distribution regions of the reflective cavities are at least classified into a central region and at least one peripheral region, wherein the peripheral surface of each of the reflective cavities has a peripheral-surface top edge, and the heights of the peripheral-surface top edges of the reflective cavities decrease from the central region to the at least one peripheral region;
wherein the spacers are at least classified into a plurality of high spacers and a plurality of middle spacers, and the top edge of the first inclined surface of the high spacers is higher than the top edge of the second inclined surface of the high spacers by a first height difference.