公开(公告)号：US20180314110A1

公开(公告)日：2018-11-01

申请号：US15956717

申请日：2018-04-18

Applicant: Young Lighting Technology Inc.

Inventor： Hua Chen ,  Ching-Hung Chen ,  Chung-Hung Fang ,  Wei-Ching Wu

IPC: G02F1/1335 ,  F21V8/00 ,  G02B6/24

Abstract: A surface light source assembly includes at least one light emitting element and a light guide plate. Each light emitting element has an annular light emitting side surface. The light guide plate has a bottom surface and a light emission surface opposite to each other. The bottom surface has at least one accommodation groove to accommodate the at least one light emitting element. The accommodation groove has a light incident surface. The light incident surface surrounds the annular light emitting side surface of the light emitting element located in the accommodation groove. The light emission surface of the light guide plate is a convex surface. A backlight module having a plurality of above light source assemblies is also provided. The surface light source assembly and the backlight module of the invention can enhance the luminance uniformity and suppress the light leakage at the edge of the light guide plate.

公开(公告)号：US10107954B2

公开(公告)日：2018-10-23

申请号：US14997572

申请日：2016-01-18

Applicant: Young Lighting Technology Inc.

Inventor： Chih-Jen Tsang ,  Tzeng-Ke Shiau

IPC: F21V8/00

Abstract: An electro-optical apparatus including an electronic apparatus and at least one light-emitting module is provided. The electronic apparatus has a containing area. The light-emitting module is disposed in the containing area and includes at least one light-emitting element, a taper light guide element, and a strip light guide element. The light-emitting element emits at least one beam. The taper light guide element is disposed on the transmission path of the beam and has a first end and a second end opposite to each other. The taper light guide element tapers off from the first end toward the second end. The first end is adjacent to the light-emitting element. The strip light guide element is disposed on the transmission path of the beam from the taper light guide element. The second end is adjacent to the strip light guide element. A scene apparatus is also provided.

公开(公告)号：US20180292598A1

公开(公告)日：2018-10-11

申请号：US15874403

申请日：2018-01-18

Applicant: Young Lighting Technology Inc.

Inventor： Ming-Ta Ke ,  Chao-Hung Weng ,  Hao-Jan Kuo

IPC: F21V8/00

CPC classification number: G02B6/0053 ,  G02B6/0036 ,  G02B6/0055

Abstract: A light source module includes a light guide plate, a light source, a first prism sheet, a second prism sheet and a third prism sheet. The light guide plate includes a light emitting surface, a bottom surface and a light incident surface. The light source is disposed on the light incident surface and emits a beam into the light guide plate through the light incident surface. The first prism sheet is disposed on the light emitting surface and includes a plurality of first prism units located between the light emitting surface and the second prism sheet. The second prism sheet includes a plurality of second prism units extending in a first direction and located between the first prism sheet and the third prism sheet. The third prism sheet includes a plurality of third prism units extending in a second direction. The first direction is perpendicular to the second direction.

公开(公告)号：US20180239080A1

公开(公告)日：2018-08-23

申请号：US15860561

申请日：2018-01-02

Applicant: Young Lighting Technology Inc.

Inventor： Cheng-Hsi Hsieh

IPC: F21V8/00

CPC classification number: G02B6/0078 ,  G02B6/0021 ,  G02B6/0043 ,  G02B6/0055 ,  G02B6/0068 ,  G02B6/0076 ,  G02B6/0091

Abstract: A backlight module includes first and second light emitting layers. The first light emitting layer is disposed above the second light emitting layer and each includes at least one light guide plate and light source disposed next to the respective light guide plate. Each light guide plate has at least one light transmissive region and light exit region. Each light transmissive region of the first light emitting layer corresponds to each light exit region of the second light emitting layer. Each light exit region of the first light emitting layer corresponds to each light transmissive region of the second light emitting layer. Each light source is next to each light transmissive region. Each light transmissive region is between each light source and light exit region. Each light exit region of the first light emitting layer corresponds to each light transmissive region and light source of the second light emitting layer.

公开(公告)号：US10036846B2

公开(公告)日：2018-07-31

申请号：US15222104

申请日：2016-07-28

Applicant: Young Lighting Technology Inc.

Inventor： Chien-Hui Lee ,  Ching-Hsiang Li ,  Chin-Ku Liu ,  Jhong-Hao Wu

IPC: F21V8/00

CPC classification number: G02B6/0076 ,  G02B6/0026 ,  G02B6/0053 ,  G02B6/0055 ,  G02B6/0068 ,  G02B6/0073 ,  G02F1/1323 ,  G02F2001/133626

Abstract: A backlight module includes a first surface light source assembly, a second surface light source assembly disposed above the first surface light source assembly, a first optical film disposed above the second surface light source assembly and including a plurality of prisms arranged along a first direction, and a light filter element disposed between the first and second surface light source assemblies. Both of the first surface light source assembly and the second surface light source assembly include a light emitting unit and a light guide plate. Each prism has a tip end facing the second surface light source assembly. The light filter element is configured to allow an incident light ray within a predetermined range of incident angle to pass therethrough. The backlight module can be switched between a narrow viewing angle mode and a wide viewing angle mode. Related driving method and display apparatus are also provided.

公开(公告)号：US20180210243A1

公开(公告)日：2018-07-26

申请号：US15826706

申请日：2017-11-30

Applicant: Young Lighting Technology Inc.

Inventor： Chong-Yang Fang ,  Wen-Chun Wang ,  Ping-Yeng Chen ,  Hsiung-Chun Hsu ,  Chien-Hui Lee

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/137 ,  F21V8/00

CPC classification number: G02F1/1323 ,  G02B6/0038 ,  G02B6/0053 ,  G02B6/0055 ,  G02B6/0056 ,  G02F1/13338 ,  G02F1/1334 ,  G02F1/133504 ,  G02F1/133528 ,  G02F1/133606 ,  G02F1/13476 ,  G02F1/137 ,  G02F2001/133302 ,  G02F2001/13345

Abstract: A viewing angle switchable display apparatus including a display panel, an electrically controlled viewing angle switching device, an electrically controlled light scattering switching device, and a backlight module is provided. The electrically controlled viewing angle switching device includes two first transparent substrates, two first transparent conductive layers, a liquid crystal layer, and a first polarizer located on a side of the electrically controlled viewing angle switching device which is far away from the display panel. The liquid crystal layer includes liquid crystal molecules, and optical axes of the liquid crystal molecules are parallel or perpendicular to a transmission axis of the first polarizer. The electrically controlled light scattering switching device is located between the display panel and the backlight module and includes two second transparent substrates, two second transparent conductive layers, and an electronically controlled polymer material layer.

公开(公告)号：US20180188603A1

公开(公告)日：2018-07-05

申请号：US15850963

申请日：2017-12-21

Applicant: Young Lighting Technology Inc.

Inventor： CHONG-YANG FANG ,  WEN-CHUN WANG ,  HSIUNG-CHUN HSU

IPC: G02F1/1335

CPC classification number: G02F1/133602 ,  G02F1/1323 ,  G02F1/1334 ,  G02F1/133504 ,  G02F1/133509 ,  G02F1/133528 ,  G02F2001/133626

Abstract: A display device includes a backlight module generating an emitting light having a first light distribution pattern, a switchable single-axis diffuser and a display panel. The first light distribution pattern has a light intensity exceeding a predetermined value within a first view angle range in a first direction. When the switchable single-axis diffuser is switched to a transparent mode, the emitting light passes through the switchable single-axis diffuser and maintains the first light distribution pattern. When the switchable single-axis diffuser is switched to a diffusion mode, the emitting light passes through the switchable single-axis diffuser and converts to a second light distribution pattern having the luminous intensity exceeding the predetermined value within a range of a second view angle in a first direction. The second view angle range is larger than the first view angle range.

公开(公告)号：US09964785B2

公开(公告)日：2018-05-08

申请号：US14819415

申请日：2015-08-05

Applicant: Young Lighting Technology Inc.

Inventor： Chun-Chung Hsiao ,  Chun-Chi Hsu ,  Ming-Yu Wu

IPC: G02F1/1333

CPC classification number: G02F1/133308 ,  G02F2001/133314 ,  G02F2001/133317 ,  G02F2202/28

Abstract: A display device including a frame, a glass light guide plate, an optical film set, a display panel, a reflector, a back plate and an electronic element is provided. The frame has a first connecting surface and a second connecting surface. The glass light guide plate has a first glass surface and a second glass surface opposite to the first glass surface. The first glass surface is connected to the first connecting surface. The optical film set is disposed on the first glass surface. The display panel is disposed on the optical film set. The reflector is disposed under the second glass surface. The back plate is connected to the second connecting surface. The back plate constructs an accommodating space with the frame and the glass light guide plate. The electronic element is connected to the back plate and located in the accommodating space.

公开(公告)号：US20180113334A1

公开(公告)日：2018-04-26

申请号：US15730740

申请日：2017-10-12

Applicant: Young Lighting Technology Inc.

Inventor： Chong-Yang Fang ,  Wen-Chun Wang

IPC: G02F1/13 ,  G02F1/13363 ,  G02F1/1335

CPC classification number: G02F1/1323 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0055 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/133632 ,  G02F1/133634 ,  G02F1/13471 ,  G02F2001/133531 ,  G02F2001/133633 ,  G02F2001/133638 ,  G02F2413/02 ,  G02F2413/05 ,  G02F2413/10 ,  G02F2413/11

Abstract: A viewing angle control device including at least one liquid crystal panel, at least one compensation film and polarizers is provided. Each of the at least one liquid crystal panel includes two transparent conductive layers and liquid crystal molecules. The polarizers include at least one first polarizer and a second polarizer. The at least one first polarizer is located between the at least one compensation film and the at least one liquid crystal panel. The second polarizer is located at a side of the at least one liquid crystal panel, the at least one compensation film and the at least one first polarizer. When there is no potential difference between the transparent conductive layers, an optical axis of each of the liquid crystal molecules is parallel or vertical to a transmission axis of the at least one first polarizer. A viewing angle controllable display apparatus is also provided.

公开(公告)号：US20180067362A1

公开(公告)日：2018-03-08

申请号：US15621203

申请日：2017-06-13

Applicant: Young Lighting Technology Inc.

Inventor： CHUN-WEI LEE ,  YU- SUNG LAI ,  SHENG CHOU ,  HAN-YUAN LIU

IPC: G02F1/1335 ,  G09G3/34

CPC classification number: G02F1/133605 ,  G02F1/133603 ,  G02F1/133606 ,  G09G3/342 ,  G09G2320/0626 ,  G09G2360/16

Abstract: A backlight module includes a light guide plate, a plurality of light transmission elements and a light source. The light guide plate has at least one light incident surface, and the light transmission elements are disposed near the light incident surface and aligned to from at least one light transmission element row. The light source is disposed near one end of the light transmission element row and capable of emitting a light beam to the light transmission element row. Each of the light transmission elements reflects a part of the light beam to the light guide plate to form multiple independent light reflection paths, and the light transmission elements successively transmits a part of the light beam to form a light transmission path in the light transmission element row.