US 11,808,964 B1
Front light module and multi-layer structure applied to full lamination
Yu-Shan Shen, Hsinchu County (TW); Yu-Hsiang Hsieh, Hsinchu County (TW); Chien-Ming Chu, Hsinchu County (TW); and Hui-Ying Chiang, Hsinchu County (TW)
Assigned to DARWIN PRECISIONS CORPORATION, Hsinchu County (TW)
Filed by Darwin Precisions Corporation, Hsinchu County (TW)
Filed on Sep. 22, 2022, as Appl. No. 17/950,516.
Claims priority of application No. 111130265 (TW), filed on Aug. 11, 2022.
Int. Cl. F21V 8/00 (2006.01)
CPC G02B 6/0038 (2013.01) 15 Claims
OG exemplary drawing
 
1. A front light module applied to full lamination, comprising:
a reflective display device;
a front light guide plate located over the reflective display device and comprising a micro-structure, wherein the micro-structure is recessed from an upper surface of the front light guide plate;
a light-emitting unit adjacent to the front light guide plate;
a transparent medium located over the front light guide plate, and a space is located between the front light guide plate and the transparent medium, wherein a refractive index of the transparent medium is in a range between 1.1 and 1.9, wherein the transparent medium further has a convex structure below the transparent medium, the convex structure is offset-aligned with the micro-structure, and both the convex structure and the micro-structure are curve and
a cover layer located over the transparent medium.