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：US20240385463A1

公开(公告)日：2024-11-21

申请号：US18665550

申请日：2024-05-15

Applicant: Coretronic Corporation

Inventor： Tzu-Hung Lin ,  Chung-Yang Fang ,  Wen-Chun Wang ,  Ching-Chuan Wei ,  Bo-Han Cheng ,  Wei-Ting Wu

IPC: G02B30/25 ,  G02F1/1335 ,  G02F1/1337

Abstract: An optical engine module including a display panel, a transflective layer, a polarizing reflective layer, a first bifocal lens, a first and second electrically controlled half waveplate is provided. The transflective layer is disposed between the display panel and the polarizing reflective layer. The polarizing reflective layer is configured to allow the light beam having a first polarization state to pass through, and reflect the light beam having a second polarization state. The first and second electrically controlled half waveplate are disposed between the transflective layer and the polarizing reflective layer. The first bifocal lens disposed between the first and second electrically controlled half waveplate has a first focal length for the light beam with the first polarization state, and has a second focal length for the light beam with the second polarization state.

公开(公告)号：US20240142794A1

公开(公告)日：2024-05-02

申请号：US18491807

申请日：2023-10-23

Applicant: Coretronic Corporation

Inventor： Chung-Yang Fang ,  Wen-Chun Wang ,  Bo-Han Cheng

IPC: G02B30/25 ,  G03B21/60

CPC classification number: G02B30/25 ,  G03B21/60

Abstract: A stereo projection screen including a scattering screen having a scattering structure layer, a phase retardation layer disposed between the scattering structure layer and the polarized projector, and a metal reflection layer covering at least a part of the scattering structure layer is provided. The scattering structure layer and the phase retardation layer are arranged in a first display area and a second display area of the stereo projection screen. The metal reflection layer is arranged in at least one of the first display area and the second display area. A first image light beam having a first polarization state has a second polarization state after being transmitted to the first display area and leaving the stereo projection screen. A second image light beam having the first polarization state still has the first polarization state after being transmitted to the second display area and leaving the stereo projection screen.

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：US12253747B2

公开(公告)日：2025-03-18

申请号：US18362971

申请日：2023-08-01

Applicant: Coretronic Corporation

Inventor： Chung-Yang Fang ,  Wen-Chun Wang ,  Bo-Han Cheng

IPC: G02F1/13 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1347

Abstract: The disclosure provides a viewing angle control module including a first liquid crystal panel, a first polarizer, a second polarizer, and a phase retarder. The first liquid crystal panel includes a first substrate, a second substrate, a first alignment layer, a second alignment layer, a first liquid crystal layer, a first electrode layer, and a second electrode layer. A second alignment direction of the second alignment layer is antiparallel to a first alignment direction of the first alignment layer. The first electrode layer has multiple electrode patterns arranged at intervals along a first direction and extending along a second direction. A first absorption axis of the first polarizer is perpendicular to a second absorption axis of the second polarizer. An included angle between the first absorption axis and the first alignment direction is 45 degrees. A display apparatus including the viewing angle control module is also provided.

公开(公告)号：US20240045243A1

公开(公告)日：2024-02-08

申请号：US18362971

申请日：2023-08-01

Applicant: Coretronic Corporation

Inventor： Chung-Yang Fang ,  Wen-Chun Wang ,  Bo-Han Cheng

IPC: G02F1/13 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1347 ,  G02F1/133 ,  G02F1/1337

CPC classification number: G02F1/1323 ,  G02F1/134309 ,  G02F1/133531 ,  G02F1/133638 ,  G02F1/1347 ,  G02F1/13306 ,  G02F1/133746

Abstract: The disclosure provides a viewing angle control module including a first liquid crystal panel, a first polarizer, a second polarizer, and a phase retarder. The first liquid crystal panel includes a first substrate, a second substrate, a first alignment layer, a second alignment layer, a first liquid crystal layer, a first electrode layer, and a second electrode layer. A second alignment direction of the second alignment layer is antiparallel to a first alignment direction of the first alignment layer. The first electrode layer has multiple electrode patterns arranged at intervals along a first direction and extending along a second direction. A first absorption axis of the first polarizer is perpendicular to a second absorption axis of the second polarizer. An included angle between the first absorption axis and the first alignment direction is 45 degrees. A display apparatus including the viewing angle control module is also provided.