公开(公告)号：US20250076560A1

公开(公告)日：2025-03-06

申请号：US18820173

申请日：2024-08-29

Applicant: CHAMP VISION DISPLAY INC.

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

IPC: F21V8/00

Abstract: A light source module includes a light guide plate, a first light source, multiple first optical microstructures, and multiple second optical microstructures. The first light source is disposed on a side of a first light incident surface of the light guide plate. The first and second optical microstructures are disposed on a bottom surface of the light guide plate, and respectively located in a first and a second zone. A first light receiving surface of each first optical microstructure facing the first light source has a first edge connecting the bottom surface, and a perpendicular bisector of the first edge passes through the first light source. The first zone does not overlap the second zone. A second light receiving surface of each second optical microstructure has a second edge connecting the bottom surface, and a perpendicular bisector of the second edge does not pass through the first light source.

公开(公告)号：US11719875B2

公开(公告)日：2023-08-08

申请号：US17386556

申请日：2021-07-28

Applicant: CHAMP VISION DISPLAY INC.

Inventor： Chin-Ku Liu ,  Chung-Hao Wu ,  Hsin-Hung Lee

IPC: F21V8/00

CPC classification number: G02B6/0043 ,  G02B6/0068

Abstract: A light source module including a light guide plate, a first light source and a plurality of first optical microstructures is provided. The light guide plate has a first incident surface and a bottom surface connected to the first incident surface. The first light source is disposed on a side of the first incident surface of the light guide plate. The first optical microstructures are disposed on the bottom surface. Each of the first optical microstructures has a first light receiving surface disposed toward the first light source. Each of the first light receiving surfaces of a first portion of the first optical microstructures has a first edge at a junction with the bottom surface, and a perpendicular bisector of the first edge passes through the first light source.

公开(公告)号：US11054553B2

公开(公告)日：2021-07-06

申请号：US16790748

申请日：2020-02-14

Applicant: CHAMP VISION DISPLAY INC.

Inventor： Chin-Ku Liu ,  Chung-Hao Wu

IPC: G02B5/04

Abstract: A display apparatus with multi screens includes a plurality of display screens and a prism structure optical element disposed between two adjacent display screens. The prism structure optical element includes a base and a plurality of prism pillars arranged on the base in a predetermined direction and facing two adjacent display screens. The base includes adjacent a first region and a second region. Lengths of the first region and the second region along the predetermined direction are La and Lb, respectively, wherein La≥Lb. The prism pillars include a plurality of first prism pillars arranged in the first region and a plurality of second prism pillars arranged in the second region. Each of the first prism pillars and the second prism pillars respectively has a total reflecting surface and a refracting surface. The total reflecting surface is located between the refracting surface and an adjacent area.

公开(公告)号：US20240392945A1

公开(公告)日：2024-11-28

申请号：US18620987

申请日：2024-03-28

Applicant: CHAMP VISION DISPLAY INC.

Inventor： Chun-Chien Liao ,  Hsin-Hung Lee ,  Chung-Hao Wu

IPC: F21V7/05

Abstract: A light source module includes a light source and a reflective element. The light source has a light emitting surface. The reflective element is disposed on a transmission path of an illumination light beam emitted from the light source. The illumination light beam reflected by the reflective element is irradiated on a target plane. The reflective element includes a first reflective surface and a second reflective surface. The first reflective surface is disposed towards the light emitting surface of the light source, and is a plane. The second reflective surface bendably extends from the first reflective surface.

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.

公开(公告)号：US11650456B2

公开(公告)日：2023-05-16

申请号：US17960787

申请日：2022-10-05

Applicant: CHAMP VISION DISPLAY INC.

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

IPC: G02F1/13357 ,  G02F1/1335

CPC classification number: G02F1/133603 ,  G02F1/133605 ,  G02F1/133626

Abstract: A display device, including a display module and a peep-proof light source module, is provided. The display module is used to provide a display beam. The peep-proof light source module is disposed on a transmission path of the display beam and includes at least one light emitting element, a light guide plate, and optical microstructures. The light emitting element is used to provide a privacy light. The light guide plate has at least one light incident surface. Each optical microstructure has an optical surface facing the light incident surface. At least part of the privacy light is reflected by the optical surface and then exits the light guide plate. The distribution density of the optical microstructures on the light guide plate close to the light incident surface is substantially the same as the distribution density away from the light incident surface and close to the center.

公开(公告)号：US10955874B2

公开(公告)日：2021-03-23

申请号：US16817640

申请日：2020-03-13

Applicant: CHAMP VISION DISPLAY INC.

Inventor： Chin-Ku Liu ,  Chung-Hao Wu

IPC: G06F1/16 ,  G02B5/30 ,  G02B5/04 ,  G09F9/302 ,  G02B27/10

Abstract: A multi-screen display device includes a plurality of display screens and a prism structure optical element disposed between two adjacent display screens. The prism structure optical element includes a substrate and a plurality of prism columns. The substrate includes a first region and a second region adjacent to each other, and the lengths of the first and second regions are respectively La and Lb, and La≥Lb. The prism columns include a plurality of first and second prism columns in the first and second regions respectively. Each first prism columns has two interior angles θa1, θa2, a first surface and a second surface. Each second prism columns has two interior angles θb1, θb2, a third surface and a fourth surface. The second and/or fourth surfaces are light absorbing surfaces, or a roughness of the second and fourth surfaces is greater than that of the first and third surfaces.

公开(公告)号：US20210080078A1

公开(公告)日：2021-03-18

申请号：US17016395

申请日：2020-09-10

Applicant: CHAMP VISION DISPLAY INC.

Inventor： Hsin-Hung Lee ,  Chin-Ku Liu ,  Chung-Hao Wu ,  Kun-Hsien Lee

IPC: F21V7/05 ,  F21V7/00

Abstract: The invention provides a light source module including a light guide plate and light emitting elements. The light guide plate includes a main plate body and a plurality of optical microstructures. The main plate body has a light emitting surface and a back surface opposite to each other, and a light incident surface connected therebetween. The optical microstructures are formed on the back surface. Each optical microstructure includes at least two sections connected to each other, each section having a reflective surface. The light emitting elements are disposed on the light incident surface, and light emitted by each of the light emitting elements is reflected by at least some of the reflective surfaces and transmitted to the light emitting surface. In any optical microstructure, the reflective surfaces are not parallel to each other.

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：US20240201432A1

公开(公告)日：2024-06-20

申请号：US18530223

申请日：2023-12-06

Applicant: CHAMP VISION DISPLAY INC.

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

IPC: F21V8/00

CPC classification number: G02B6/0055

Abstract: A lighting decoration module includes an LGP, at least one light source, and first and second optical microstructures. The LGP has at least one light incident surface and first and second light exit surfaces that are opposite to each other and connect the light incident surface. The light source corresponds to the light incident surface. The first optical microstructures are disposed on the first light exit surface and each has a first surface facing the light source. A first angle between the first surface and the first light exit surface is within a range from 40-60 degrees or 15-35 degrees. The second optical microstructures are disposed on the second light exit surface and each has a second surface facing the light source. A second angle between the second surface and the second light exit surface is within a range from 40-60 degrees.