公开(公告)号：US20240327269A1

公开(公告)日：2024-10-03

申请号：US18619936

申请日：2024-03-28

申请人： HOYA CORPORATION ,  HOYA OPTICAL TECHNOLOGY (WEIHAI) CO., LTD.

发明人： Hayato SASAKI

IPC分类号： C03C3/068 ,  G02B27/01

CPC分类号： C03C3/068 ,  G02B6/0065 ,  G02B27/0172 ,  G02B6/0031 ,  G02B6/0055

摘要： The optical glass includes SiO2, B2O3, TiO2, Nb2O5, Y2O3, La2O3, and Gd2O3 as essential components, in which, on a mass basis, a mass ratio of a B2O3 content to a SiO2 content (B2O3/SiO2) is less than 1.000, a mass ratio of Y2O3 content to a total content of Y2O3, La2O3, Gd2O3 and Yb2O3 (Y2O3/(Y2O3+La2O3+Gd2O3+Yb2O3)) is more than 0.020, and a refractive index nd is more than 2.00000.

公开(公告)号：US12050334B2

公开(公告)日：2024-07-30

申请号：US17599502

申请日：2021-06-15

申请人： SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.

发明人： Haotian Xu

IPC分类号： F21V8/00 ,  G02F1/1335

CPC分类号： G02B6/0031 ,  G02B6/0028 ,  G02B6/0068 ,  G02F1/133626

摘要： A backlight module and a display device are disclosed. The backlight module includes a light guide structure and a light source. The light source includes a first light-emitting assembly and a second light-emitting assembly. A light receiving structure is disposed behind and corresponding to a position of the first light-emitting assembly and is configured to concentrate light emitted by the first light-emitting assembly within a predetermined angle range so that the light is directed outward from the light receiving structure. The light guide structure is disposed behind and corresponding to a position of the light receiving structure and is configured to direct outward the light concentrated in the light receiving structure through specular reflection.

公开(公告)号：US12050322B2

公开(公告)日：2024-07-30

申请号：US18152012

申请日：2023-01-09

申请人： Apple Inc.

发明人： Vikrant Bhakta ,  Guolin Peng ,  Hyungryul Choi ,  Scott M. DeLapp

IPC分类号： G02B27/01 ,  F21V8/00 ,  G02B5/32 ,  G02B26/08 ,  G02B27/00 ,  G02B27/10 ,  G02B27/14 ,  G02F1/00

CPC分类号： G02B27/0172 ,  G02B5/32 ,  G02B6/0018 ,  G02B6/0025 ,  G02B6/0031 ,  G02B6/005 ,  G02B26/0858 ,  G02B27/0093 ,  G02B27/1006 ,  G02B27/148 ,  G02F1/0045 ,  G02B2027/0174

摘要： An electronic device may provide foveated images at an eye box. The device may have a first display module that produces a low resolution portion of the image and a second display module that produces a high resolution portion of the image. A reflective input coupling prism may be mounted to a waveguide. A steering mirror may overlap the prism. The mirror may receive the high resolution portion through the waveguide and the prism. The mirror may reflect the high resolution portion back into the waveguide and may be adjusted to shift a location of the high resolution portion within the image. For example, the steering mirror may adjust the position of the high resolution portion to align with the gaze direction at the eye box. A reflective surface of the prism may reflect the low resolution portion of the image into the waveguide.

公开(公告)号：US20240201499A1

公开(公告)日：2024-06-20

申请号：US18505570

申请日：2023-11-09

申请人： Apple Inc.

发明人： Nurul Islam ,  Malcolm J Northcott

IPC分类号： G02B27/01 ,  F21V8/00 ,  G03B21/20

CPC分类号： G02B27/0172 ,  G02B6/0016 ,  G02B6/0031 ,  G02B6/0033 ,  G03B21/2033 ,  G02B2027/0178

摘要： An electronic device may include a first and second projectors, first, second, and third waveguides, light sources, and optical sensors. The sources may emit calibration light into the third waveguide, which splits the calibration light between the first and second waveguides. Couplers on the third waveguide may couple the calibration light out of the third waveguide and partial reflectors on the first and second waveguides may reflect the calibration light back towards the optical couplers as reflected light. The couplers may provide the reflected light to the sensors, which generate electrical signals using the reflected light. Control circuitry may compare the electrical signals between different sensor locations to identify relative angles between the first waveguide, the second waveguide, the first projector, and/or the second projector. The control circuitry may use the identified relative angles to adjust projector images to compensate for optical misalignments over time.

公开(公告)号：US20240192433A1

公开(公告)日：2024-06-13

申请号：US18282522

申请日：2021-10-22

申请人： Chengdu BOE Optoelectronics Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

发明人： Xiaolong LIU ,  Xi LI ,  Jingang WANG ,  Yujie WANG ,  Wei ZHANG ,  Pengfei WANG

IPC分类号： F21V8/00

CPC分类号： G02B6/0053 ,  G02B6/0018 ,  G02B6/0031 ,  G02B6/009

摘要： A backlight module and a display device are disclosed. The backlight module includes: a light guide plate, a first bottom surface of the light guide plate being provided with a plurality of dot structures, and the dot structure including a first inclined surface forming a first included angle with the first bottom surface; a backlight source located on a side of a light incident surface, light emitted by the backlight source being incident to the first inclined surface, and an included angle between the emitted light and a horizontal line being a second included angle; and a first prism layer located on the side of a light exiting surface of the light guide plate, the first prism layer having a plurality of first prisms provided in parallel with the light incident surface.

公开(公告)号：US20240192426A1

公开(公告)日：2024-06-13

申请号：US18133528

申请日：2023-04-12

申请人： Wistron Corporation

发明人： Bin Luo ,  RuiHua Wang ,  Chih-Chou Chou

IPC分类号： F21V8/00 ,  G06F1/16

CPC分类号： G02B6/0031 ,  G02B6/0066 ,  G02B6/0088 ,  G06F1/1607

摘要： A backlight module is provided and includes a circuit board, a light emitting component disposed on the circuit board, a light guiding component, a first light reflecting component and a second light reflecting component. The first light reflecting component covers at least a portion of a first surface of the light guiding component adjacent to the circuit board. The second light reflecting component includes a first light reflecting portion and a second light reflecting portion. The first light reflecting portion extends along a first direction and covers at least a portion of a second surface of the light guiding component away from the circuit board. The second light reflecting portion is connected to the first light reflecting portion and extends along a second direction. The second reflecting portion is located corresponding to a third surface of the light guiding component. Besides, a related light emitting electronic device is provided.

公开(公告)号：US11966116B2

公开(公告)日：2024-04-23

申请号：US17305183

申请日：2021-07-01

申请人： AZUMO, INC.

发明人： Anthony Nichol ,  Zane Coleman

IPC分类号： G02F1/1335 ,  F21V8/00

CPC分类号： G02F1/133553 ,  G02B6/0031 ,  G02B6/0068 ,  G02B6/008 ,  G02F1/133524

摘要： In one embodiment, a display comprises a light source positioned to emit light into a 0.5 millimeter thick lightguide with light extraction features, a cladding layer optically coupled to a core layer of the lightguide on a first side, a light turning film optically coupled to the cladding layer on an opposite side, the light turning film comprising a light turning features that redirect frustrated totally internally reflected light from the core layer into a first portion of light with a first peak luminous intensity at a first angle and a second portion of light with a second peak luminous intensity at a second angle different from the first angle and on an opposite side of the thickness direction, and the light diffusely reflecting from a reflective spatial light modulator has a peak luminous intensity within degrees from a direction normal to a surface of the display.

公开(公告)号：US20240061248A1

公开(公告)日：2024-02-22

申请号：US18232048

申请日：2023-08-09

申请人： RealD Spark, LLC

发明人： Michael G. Robinson ,  Graham J. Woodgate ,  Jonathan Harrold ,  Austin Wilson

IPC分类号： G02B27/01 ,  G02B13/12 ,  F21V8/00 ,  G02B27/28 ,  G02B27/00 ,  G02B5/30 ,  G02B5/08

CPC分类号： G02B27/0172 ,  G02B13/12 ,  G02B6/0031 ,  G02B6/0055 ,  G02B27/288 ,  G02B27/0081 ,  G02B5/3083 ,  G02B5/0825 ,  F21S43/26

摘要： An anamorphic directional illumination device may provide a near-eye display apparatus or a vehicle external light device. The anamorphic near-eye display apparatus comprises a spatial light modulator with asymmetric pixels, an input transverse anamorphic lens; and an extraction waveguide that passes input light in a first direction between a polarisation-sensitive reflector and front guide surface to a lateral anamorphic reflector, and to reflect the light back through the extraction waveguide to guide between the rear guide surface and front guide surface. Reflective extraction features are arranged to extract the reflected light towards the pupil of a viewer, maintaining the directionality of the fan of light rays from the spatial light modulator and anamorphic imaging system. A thin, transparent and efficient anamorphic display apparatus for Augmented Reality and Virtual Reality displays and for scene illumination is provided.

公开(公告)号：US11906774B2

公开(公告)日：2024-02-20

申请号：US18326110

申请日：2023-05-31

申请人： TactoTek Oy

发明人： Antti Keränen ,  Tero Heikkinen ,  Pasi Korhonen ,  Pälvi Apilo ,  Mikko Heikkinen ,  Jarmo Sääski ,  Paavo Niskala ,  Ville Wallenius ,  Heikki Tuovinen ,  Janne Asikkala ,  Taneli Salmi ,  Suvi Kela ,  Outi Rusanen ,  Johanna Juvani ,  Mikko Sippari ,  Tomi Simula ,  Tapio Rautio ,  Samuli Yrjänä ,  Tero Rajaniemi ,  Simo Koivikko ,  Juha-Matti Hintikka ,  Hasse Sinivaara ,  Vinski Bräysy ,  Olimpia Migliore ,  Juha Sepponen

IPC分类号： F21V8/00 ,  G02B5/08

CPC分类号： G02B6/0031 ,  G02B6/004 ,  G02B6/0021 ,  G02B6/0036 ,  G02B6/0041 ,  G02B6/0043 ,  G02B6/0051 ,  G02B6/0055 ,  G02B6/0061 ,  G02B6/0065 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0083 ,  G02B5/0883

摘要： An integrated optically functional multilayer structure includes a flexible, substrate film arranged with a circuit design including at least a number of electrical conductors on the substrate film; and a plurality of top-emitting, bottom-installed light sources provided upon a first side of the substrate film to internally illuminate at least portion of the structure for external perception via associated outcoupling areas, wherein for each light source of the plurality of light sources there is optically transmissive plastic layer, produced upon the first side of the substrate film, said plastic layer at least laterally surrounding the light source, the substrate film at least having a similar or lower refractive index therewith; and reflector design including at least one material layer, provided at least upon the light source and configured to reflect the light emitted by the light source and incident upon the reflective layer towards the plastic layer.

公开(公告)号：US11880059B2

公开(公告)日：2024-01-23

申请号：US17632311

申请日：2020-08-26

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Yasuyuki Takeda

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

CPC分类号： G02B6/0055 ,  G02B6/0031 ,  G02B6/0051 ,  G02B6/0088 ,  G02F1/133504 ,  G02F1/133536 ,  G02F1/133553 ,  G02F1/133615 ,  G02B6/0068

摘要： A backlight for providing illumination to a liquid crystal panel includes a reflective polarizer and an extended light source. The extended light source includes a diffuse reflective film assembly and an emission surface disposed between the reflective polarizer and the diffuse reflective film assembly. The extended light source is configured to emit light through the emission surface toward the reflective polarizer. The diffuse reflective film assembly includes a specularly reflective film and an optically diffusive film disposed between the emission surface and the specularly reflective film. The optically diffusive film is bonded to the specularly reflective film at a plurality of discrete spaced apart bonded locations with a total bonding area of less than about 20%.