公开(公告)号：US20250028201A1

公开(公告)日：2025-01-23

申请号：US18583771

申请日：2024-02-21

Applicant: DARWIN PRECISIONS CORPORATION

Inventor： Wen-Tai Shen ,  Yu-Cheng Chang

IPC: G02F1/13357

Abstract: A reflective element is adapted to a backlight module including a plurality of light-emitting elements. The reflective element includes a body provided with a top surface, a bottom surface, and a plurality of light source grooves. Each light source groove is provided with a light outlet, a bottom, and a reflective portion. The light outlet is formed on the top surface. The bottom is adapted to arrange the light-emitting element. The reflective portion is located between the light outlet and the bottom and is adapted to surround the light-emitting element. The reflective portion includes a first reflective surface and a second reflective surface. The first reflective surface is located between the second reflective surface and the bottom, and the second reflective surface is located between the first reflective surface and the light outlet. The first reflective surface and the second reflective surface have different slopes or curvatures.

公开(公告)号：US11031533B2

公开(公告)日：2021-06-08

申请号：US16733611

申请日：2020-01-03

Applicant: Darwin Precisions Corporation

Inventor： Yu-Cheng Chang ,  Yu-Ming Huang ,  Ya-Han Ko

IPC: H01L33/58 ,  H01L33/60 ,  H01L25/075 ,  H01L33/54

Abstract: A light-emitting device including a light-emitting unit and a second lens is provided. The second lens includes light-emitting surface, bottom surface, side surfaces and accommodation hole. The bottom surface is disposed opposite to the light-emitting surface, and the side surfaces are respectively connected to the light-emitting surface and the bottom surface. The accommodation hole passes through the second lens and accommodates light-emitting unit. A light-emitting module and a backlight module are also provided.

公开(公告)号：US20250075880A1

公开(公告)日：2025-03-06

申请号：US18654026

申请日：2024-05-03

Applicant: DARWIN PRECISIONS CORPORATION

Inventor： Yu-Cheng Chang

IPC: F21V7/00 ,  F21Y105/16 ,  F21Y113/00

Abstract: A backlight module, including a reflective plate and a plurality of light-emitting units. The reflective plate is provided with a reflective side. The light-emitting units are provided on the reflective side. The reflective plate includes a substrate and a reflective layer. The reflective layer covers the substrate. The reflective side is divided by the reflective layer into a first region and a second region surrounding the first region, and the reflectivity of the second region is greater than that of the first region.

公开(公告)号：US11953940B2

公开(公告)日：2024-04-09

申请号：US17064624

申请日：2020-10-07

Applicant: Darwin Precisions Corporation

Inventor： Yu-Cheng Chang ,  Shu-Ching Peng ,  Yu-Ming Huang

IPC: G02B5/02 ,  G06F1/16

CPC classification number: G06F1/1609 ,  G02B5/0215

Abstract: A display apparatus includes a light-transmitting structural plate, some optical microscopic structures, an optical film, a base plate and some light emitting elements. The light-transmitting structural plate has a first side and a second side opposite to each other. The optical microscopic structures are regularly arrayed and formed on the first side or the second side. The optical microscopic structure has an inclined surface connecting at a connecting line and forming an angle ranging between 30 degrees and 150 degrees with a corresponding inclined surface of an adjacent one of the optical microscopic structures. The optical film is located on the first side. The base plate is separated from the second side by a space. The light emitting elements are located inside the space and disposed on the base plate. The light emitting elements respectively emit a light ray to the light-transmitting structural plate.