公开(公告)号：US11933999B2

公开(公告)日：2024-03-19

申请号：US18072707

申请日：2022-12-01

Applicant: Coretronic Corporation

Inventor： Wen-Chun Wang ,  Chih-Jen Tsang ,  Chung-Wei Huang

IPC: F21V8/00

CPC classification number: G02B6/0051

Abstract: An optical structure film and a light source module are provided. The optical structure film includes multiple optical unit microstructures. Each of the optical unit microstructures has four side surfaces and an inwardly concave beam splitting surface. The beam splitting surface is respectively connected to the side surfaces, and the beam splitting surface has four endpoints when viewed from a front viewing angle. Connection lines of the four endpoints form a rectangle. The beam splitting surface includes at least one beam splitting curved surface. A junction of the at least one beam splitting curved surface and one of the four side surfaces is a first line segment. A projection of a midpoint of an edge of the rectangle on the beam splitting surface overlaps with a relative extreme point of the first line segment.

公开(公告)号：US11681087B2

公开(公告)日：2023-06-20

申请号：US17727821

申请日：2022-04-25

Applicant: Coretronic Corporation

Inventor： Wen-Chun Wang ,  Chih-Jen Tsang ,  Chung-Wei Huang

IPC: G02F1/13357 ,  F21V9/40 ,  F21V8/00 ,  F21V9/32

CPC classification number: F21V9/40 ,  F21V9/32 ,  G02B6/0055

Abstract: A light source module includes at least one light-emitting element, a first optical layer, a penetrating light selection layer, a second optical layer, a light splitting layer, and a wavelength conversion layer. The light-emitting element is configured to provide a beam with a wavelength falling within a first wavelength band. An exit angle at which the beam exits the first optical layer is greater than an incident angle at which the beam is incident to the first optical layer. The penetrating light selection layer may allow light with a wavelength falls within a second wavelength band to pass through and has corresponding transmittance for light with a wavelength falling within the first wavelength band and is incident at different incident angles. An exit angle at which the beam exits the second optical layer is less than an incident angle at which the beam is incident to the second optical layer.

公开(公告)号：US11693273B2

公开(公告)日：2023-07-04

申请号：US17226092

申请日：2021-04-09

Applicant: Coretronic Corporation

Inventor： Chih-Jen Tsang ,  Ying-Hsiang Chen ,  Chung-Wei Huang ,  Chun-Chi Hsu

IPC: G02F1/13357

CPC classification number: G02F1/133605 ,  G02F1/133606 ,  G02F1/133603

Abstract: A light source module includes a substrate, a light-emitting element, an optical adhesive layer and a reflective structure. The light-emitting element is disposed on the substrate. The optical adhesive layer is disposed on the substrate and covers the light-emitting element. The reflective structure is disposed in the optical adhesive layer and located above the light-emitting element. A display device using the aforementioned light source module is also provided. The light source module provided by the invention has the function of protecting the light-emitting element and improves the problem of the large thickness of the direct-type backlight module in prior art.

公开(公告)号：US20230141295A1

公开(公告)日：2023-05-11

申请号：US17978964

申请日：2022-11-01

Applicant: Coretronic Corporation

Inventor： Chung-Yang Fang ,  Ping-Yen Chen ,  Chih-Jen Tsang ,  Chung-Wei Huang ,  Bo-Han Cheng ,  Wen-Chun Wang

IPC: G02F1/13357 ,  G02F1/137 ,  G02F1/13363 ,  G02F1/1335

CPC classification number: G02F1/133603 ,  G02F1/13718 ,  G02F1/133638 ,  G02F1/133607 ,  G02F1/133611

Abstract: A backlight module including a circuit substrate, a plurality of light-emitting devices, a first cholesteric liquid-crystal layer, and a second cholesteric liquid-crystal layer is provided. The light-emitting devices are disposed on the circuit substrate and electrically connected to the circuit substrate. The first cholesteric liquid-crystal layer is disposed on the light-emitting devices and overlapped with a light-emitting surface of each of the light-emitting devices. The second cholesteric liquid-crystal layer is disposed on the first cholesteric liquid-crystal layer and overlapped with the first cholesteric liquid-crystal layer. The first cholesteric liquid-crystal layer and the second cholesteric liquid-crystal layer respectively have a first chiral direction and a second chiral direction. A display apparatus adopting the backlight module is also provided.

公开(公告)号：US20240126002A1

公开(公告)日：2024-04-18

申请号：US18479823

申请日：2023-10-02

Applicant: Coretronic Corporation

Inventor： Chih-Jen Tsang ,  Chung-Wei Huang ,  Shih-Yen Cheng ,  Jung-Wei Chang ,  Han-Yuan Liu ,  Chun-Wei Lee

IPC: F21V8/00

CPC classification number: G02B6/0053 ,  G02B6/0051 ,  G02B6/0088 ,  G02F1/133615

Abstract: A backlight module includes a light source, a first prism sheet disposed on the light source, and a light type adjustment sheet disposed on a side of the first prism sheet away from the light source and including a base and multiple light type adjustment structures. The multiple light type adjustment structures are disposed on the first surface of the base. Each light type adjustment structure has a first structure surface and a second structure surface connected to each other. The first structure surface of each light type adjustment structure and the first surface of the base form a first base angle therebetween, and the second structure surface of each light type adjustment structure and the first surface of the base form a second base angle therebetween. The angle of the first base angle is different from the angle of the second base angle.

公开(公告)号：US11698553B2

公开(公告)日：2023-07-11

申请号：US17978964

申请日：2022-11-01

Applicant: Coretronic Corporation

Inventor： Chung-Yang Fang ,  Ping-Yen Chen ,  Chih-Jen Tsang ,  Chung-Wei Huang ,  Bo-Han Cheng ,  Wen-Chun Wang

IPC: G02F1/133 ,  G02F1/13357 ,  G02F1/137 ,  G02F1/1335 ,  G02F1/13363

CPC classification number: G02F1/133603 ,  G02F1/13718 ,  G02F1/133607 ,  G02F1/133611 ,  G02F1/133638

Abstract: A backlight module including a circuit substrate, a plurality of light-emitting devices, a first cholesteric liquid-crystal layer, and a second cholesteric liquid-crystal layer is provided. The light-emitting devices are disposed on the circuit substrate and electrically connected to the circuit substrate. The first cholesteric liquid-crystal layer is disposed on the light-emitting devices and overlapped with a light-emitting surface of each of the light-emitting devices. The second cholesteric liquid-crystal layer is disposed on the first cholesteric liquid-crystal layer and overlapped with the first cholesteric liquid-crystal layer. The first cholesteric liquid-crystal layer and the second cholesteric liquid-crystal layer respectively have a first chiral direction and a second chiral direction. A display apparatus adopting the backlight module is also provided.

公开(公告)号：US20220373162A1

公开(公告)日：2022-11-24

申请号：US17727821

申请日：2022-04-25

Applicant: Coretronic Corporation

Inventor： Wen-Chun Wang ,  Chih-Jen Tsang ,  Chung-Wei Huang

IPC: F21V9/40 ,  F21V9/32 ,  F21V8/00

Abstract: A light source module includes at least one light-emitting element, a first optical layer, a penetrating light selection layer, a second optical layer, a light splitting layer, and a wavelength conversion layer. The light-emitting element is configured to provide a beam with a wavelength falling within a first wavelength band. An exit angle at which the beam exits the first optical layer is greater than an incident angle at which the beam is incident to the first optical layer. The penetrating light selection layer may allow light with a wavelength falls within a second wavelength band to pass through and has corresponding transmittance for light with a wavelength falling within the first wavelength band and is incident at different incident angles. An exit angle at which the beam exits the second optical layer is less than an incident angle at which the beam is incident to the second optical layer.

公开(公告)号：US12271019B2

公开(公告)日：2025-04-08

申请号：US18479823

申请日：2023-10-02

Applicant: Coretronic Corporation

Inventor： Chih-Jen Tsang ,  Chung-Wei Huang ,  Shih-Yen Cheng ,  Jung-Wei Chang ,  Han-Yuan Liu ,  Chun-Wei Lee

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

Abstract: A backlight module includes a light source, a first prism sheet disposed on the light source, and a light type adjustment sheet disposed on a side of the first prism sheet away from the light source and including a base and multiple light type adjustment structures. The multiple light type adjustment structures are disposed on the first surface of the base. Each light type adjustment structure has a first structure surface and a second structure surface connected to each other. The first structure surface of each light type adjustment structure and the first surface of the base form a first base angle therebetween, and the second structure surface of each light type adjustment structure and the first surface of the base form a second base angle therebetween. The angle of the first base angle is different from the angle of the second base angle.

公开(公告)号：US20230204846A1

公开(公告)日：2023-06-29

申请号：US18072707

申请日：2022-12-01

Applicant: Coretronic Corporation

Inventor： Wen-Chun Wang ,  Chih-Jen Tsang ,  Chung-Wei Huang

IPC: F21V8/00

CPC classification number: G02B6/0051

Abstract: An optical structure film and a light source module are provided. The optical structure film includes multiple optical unit microstructures. Each of the optical unit microstructures has four side surfaces and an inwardly concave beam splitting surface. The beam splitting surface is respectively connected to the side surfaces, and the beam splitting surface has four endpoints when viewed from a front viewing angle. Connection lines of the four endpoints form a rectangle. The beam splitting surface includes at least one beam splitting curved surface. A junction of the at least one beam splitting curved surface and one of the four side surfaces is a first line segment. A projection of a midpoint of an edge of the rectangle on the beam splitting surface overlaps with a relative extreme point of the first line segment.