公开(公告)号：US12287505B1

公开(公告)日：2025-04-29

申请号：US18402771

申请日：2024-01-03

Applicant: CHAMP VISION DISPLAY INC.

Inventor： Wei-Jhe Chien ,  Chung-Hao Wu ,  Chun-Chien Liao ,  Chun-Chung Hsiao

IPC: F21V8/00 ,  G02F1/1335

Abstract: A display device includes a display element, a light guide plate, and a light-emitting element. The display element has a display side and a back side, and the display side is opposite to the back side. The light guide plate is disposed on the display side. The light guide plate has a light-emitting surface, a light-incident surface, and a surface. The light-emitting surface faces away from the display side. The surface faces toward the display side. The surface has a plurality of optical microstructures, and the light-incident surface is located between the light-emitting surface and the surface. The light-emitting element is disposed opposite to the light-incident surface.

公开(公告)号：US20250123438A1

公开(公告)日：2025-04-17

申请号：US18908707

申请日：2024-10-07

Applicant: CHAMP VISION DISPLAY INC.

Inventor： Chun-Chung Hsiao ,  Wei-Jhe Chien ,  Hsin-Hung Lee

IPC: F21V8/00

Abstract: A display apparatus includes a light guide plate, a first light source, a second light source, multiple first optical microstructures, multiple second optical microstructures, and a display panel. The first light source and the second light source are disposed beside a first light incident surface and a second light incident surface of the light guide plate respectively. Multiple second light beams emitted from the second light source irradiate a display surface of the display panel after being reflected by multiple second light receiving surfaces of the second optical microstructures disposed on a second light emitting surface of the light guide plate. Multiple first light beams emitted from the first light source exit the display apparatus after being reflected by multiple first light receiving surfaces of the first optical microstructures disposed on a first light emitting surface of the light guide plate.

公开(公告)号：US11966107B2

公开(公告)日：2024-04-23

申请号：US18209494

申请日：2023-06-14

Applicant: CHAMP VISION DISPLAY INC.

Inventor： Chung-Hao Wu ,  Hsin-Hung Lee ,  Chin-Ku Liu ,  Chun-Chien Liao ,  Wei-Jhe Chien

IPC: G02F1/13 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/29

CPC classification number: G02F1/1323 ,  G02B6/0023 ,  G02B6/0055 ,  G02F1/1313 ,  G02F1/133605 ,  G02F1/133627 ,  G02F1/29 ,  G02B6/0036 ,  G02F1/133603

Abstract: An anti-peep display device includes a display module and an anti-peep module disposed on the display module. The anti-peep module includes the following features. The first light incident surface faces the display surface, the second and third light incident surfaces are located on opposite sides of the first light incident surface, the first condensing portion is disposed corresponding to the second light incident surface and the first light source, the second condensing portion is disposed corresponding to the third light incident surface and the second light source, the first and second condensing portions convert beams of the first and second light sources into anti-peep beams with a beam angle less than 10 degrees, and the optical microstructures reflect the anti-peep beams and exit the anti-peep beams from the light guide plate. The present invention also provides an anti-peep method applicable to the anti-peep display device.