ILLUMINATION SYSTEM AND PROJECTION DEVICE
    41.
    发明公开

    公开(公告)号:EP4372464A1

    公开(公告)日:2024-05-22

    申请号:EP23209801.2

    申请日:2023-11-14

    IPC分类号: G03B21/20 G03B33/12

    摘要: An illumination system that provides an illumination beam is provided. The illumination system includes a first light source module, a second light source module, a third light source module, a first optical element, a second optical element, and a third optical element. The first light source module and the second light source module provide a first color light beam, a second color light beam, and a third color light beam. The third light source module provides a third color light beam. The first optical element, the second optical element and the third optical element are disposed on transmission paths of the first color light beam, the second color light beam and the third color light beam, and the first light source module and the second light source module are respectively located on opposite sides of the first optical element and the second optical element.

    INFRARED LIGHT SOURCE MODULE AND PROJECTION DEVICE

    公开(公告)号:EP4296776A1

    公开(公告)日:2023-12-27

    申请号:EP23180104.4

    申请日:2023-06-19

    IPC分类号: G03B21/20 H04N9/31 G03B21/26

    摘要: An infrared (IR) light source module for providing an IR light beam includes at least one circuit substrate, first IR light-emitting elements, and second IR light-emitting elements. The first IR light-emitting elements are disposed on the at least one circuit substrate. The first IR light-emitting elements are used to provide a first light beam. The second IR light-emitting elements are disposed on the at least one circuit substrate. The second IR light-emitting elements are used to provide a second light beam. The IR light beam includes at least one of a first light beam and a second light beam, wherein a wavelength of the first light beam is greater than or equal to 700 nm and less than or equal to 780 nm, and a wavelength of the second light beam is greater than 780 nm and less than or equal to 1000 nm.

    BACKLIGHT MODULE AND DISPLAY APPARATUS
    43.
    发明公开

    公开(公告)号:EP4242514A1

    公开(公告)日:2023-09-13

    申请号:EP23161200.3

    申请日:2023-03-10

    IPC分类号: F21V8/00

    摘要: A backlight module including a first light guide plate, a first light source, a diffusor, a second light guide plate, a second light source, a viewing angle control film, and a first prism sheet is provided. The diffusor is disposed on one side of a first light emitting surface of the first light guide plate. The second light guide plate is disposed on one side of a first bottom surface of the first light guide plate. A second light emitting surface of the second light guide plate faces the first bottom surface. The second light source is disposed on one side of a second light incident surface of the second light guide plate. The viewing angle control film is disposed between the first light guide plate and the second light guide plate. The first prism sheet is disposed between the viewing angle control film and the first light guide plate.

    OPTICAL LENS HAVING FIVE LENSES AND A REAR PUPIL AND DISPLAY DEVICE USING THE SAME

    公开(公告)号:EP4141504A1

    公开(公告)日:2023-03-01

    申请号:EP22175756.0

    申请日:2022-05-27

    IPC分类号: G02B13/00 G02B27/01

    摘要: The invention provides an optical lens including a first lens, a second lens, a third lens, a fourth lens, and a fifth lens with refracting power in order from a light incidence side to a light-emitting side along an optical axis, and at least one glass lens is included. The first lens has a positive refracting power, the second lens has a positive refracting power, and the third lens has a negative refracting power. The optical lens satisfies a condition of 0.5EFL G G is an effective focal length of the at least one glass lens. The optical lens is adapted for receiving an image beam from the light incidence side, and the image beam forms a stop on the light-emitting side after passing through the optical lens. A display device is also proposed.

    LIGHT FIELD NEAR-EYE DISPLAY AND METHOD THEREOF FOR GENERATING VIRTUAL REALITY IMAGES

    公开(公告)号:EP4105919A1

    公开(公告)日:2022-12-21

    申请号:EP21203598.4

    申请日:2021-10-20

    IPC分类号: G09G3/00

    摘要: A method for generating virtual reality images and used in a light field near-eye display includes steps of: calculating a compensation mask according to a simulated image and superimposing the compensation mask on a target image to generate a superimposed target image, wherein brightness distributions of the simulated image and the compensation mask are opposite to each other; and shifting a display image according to a change vector of a plurality of eye movement parameters, wherein the display image is converted from the superimposed target image. The light field near-eye display is also provided. In this way, the light field near-eye display for generating virtual reality images and the method thereof can achieve the purpose of improving the uniformity of the image and expanding the eye box size.

    HEAD-MOUNTED DISPLAY DEVICE
    46.
    发明公开

    公开(公告)号:EP4105710A1

    公开(公告)日:2022-12-21

    申请号:EP22176641.3

    申请日:2022-06-01

    IPC分类号: G02B26/10 G02B27/01 G02B26/08

    摘要: A head-mounted display device including a projection device and an optical waveguide is provided. The projection device has an optical pupil located on a second surface of the optical waveguide, and includes a light source, a first MEMS mirror element, a second MEMS mirror element, and a relay optical element group. The relay optical element group has a first axis equivalent focal length corresponding to a first parallel light beam and has a second axis equivalent focal length corresponding to a second parallel light beam. The first parallel light beam and the second parallel light beam travel along an optical axis of the relay optical element group, and a value of the first axis equivalent focal length is different from a value of the second axis equivalent focal length. The head-mounted display device may provide good image quality and a large field of view.

    HEAD-UP DISPLAY DEVICE
    47.
    发明公开

    公开(公告)号:EP4102290A2

    公开(公告)日:2022-12-14

    申请号:EP22170848.0

    申请日:2022-04-29

    IPC分类号: G02B27/01 G02B5/10

    摘要: A head-up display device adapted to project a first image beam and a second image beam onto a target element is provided. The head-up display device includes a display unit, a first optical module, and a second optical module. The first and the second image beams from the display unit are sequentially transmitted the first and the second optical modules. The first image beam and the second image beam are respectively reflected by the second optical module out of the head-up display, and then transmitted to the target element to form a first virtual image and a second virtual image. Through the first optical module, the optical path length of the first image beam from the display unit to the position of the first virtual image is greater than the optical path length of the second image beam from the display unit to the position of the second virtual image.

    LIGHT FIELD NEAR-EYE DISPLAY DEVICE AND METHOD OF LIGHT FIELD NEAR-EYE DISPLAY

    公开(公告)号:EP4089468A1

    公开(公告)日:2022-11-16

    申请号:EP22169794.9

    申请日:2022-04-25

    IPC分类号: G02B27/01 G02B30/27

    摘要: A light field near-eye display device and a method of light field near-eye display are provided. The light field near-eye display device includes a processor (110), a display panel (120), and a lens module (140).
    The processor (110) adjusts a preset eye box (202) according to a vision data to obtain an adjusted eye box (501,502,503), and adjusts a preset image data according to the adjusted eye box (501,502,503) to generate an adjusted image data. The display panel (120) is coupled to the processor (110) and emits an image beam according to the adjusted image data. The lens module (140) includes a micro lens array (141) and is disposed between the display panel (120) and a pupil. The image beam is incident on the pupil via the lens module (140) and displays a light field image.

    ILLUMINATION SYSTEM AND PROJECTION APPARATUS
    49.
    发明公开

    公开(公告)号:EP4006596A1

    公开(公告)日:2022-06-01

    申请号:EP21210471.5

    申请日:2021-11-25

    摘要: An illumination system and a projection apparatus are provided. The illumination system includes an excitation light source, a light guiding element, a filter module, an optical wavelength conversion module, and a homogenizing element. The light guiding element reflects an excitation beam coming from the excitation light source. The filter module includes a filtering region and receives the excitation beam reflected by the light guiding element. The optical wavelength conversion module includes a wavelength conversion region, receives the excitation beam reflected by the filtering region and reflects a conversion beam converted from the excitation beam. The conversion beam forms at least one color beam after passing through the filtering region of the filter module. The homogenizing element receives the excitation beam coming from the filter module and the at least one color beam. An incident angle of the excitation beam on the light guiding element is θ1, and θ1>0°.

    WAVELENGTH CONVERSION ELEMENT, PROJECTION DEVICE WITH THE SAME AND METHOD OF MANUFACTURING THE WAVELENGTH CONVERSION ELEMENT

    公开(公告)号:EP3989001A1

    公开(公告)日:2022-04-27

    申请号:EP21215223.5

    申请日:2020-10-26

    IPC分类号: G03B21/20 H01L33/50 H04N9/31

    摘要: A wavelength conversion element (100a) includes a substrate (110), a wavelength conversion layer (120) on the substrate, a first inorganic interstitial layer (130) disposed between the substrate and the wavelength conversion layer, and a second inorganic interstitial layer (160). The wavelength conversion layer (120) is disposed between the first inorganic interstitial layer (130) and the second inorganic interstitial layer (160). A thickness (T2) of the second inorganic interstitial layer (160) in a direction perpendicular to the substrate (110) increases from a center toward an edge, or decreases from a center toward an edge. A projection device (1) having the wavelength conversion element (100a) is further provided, and a manufacturing method of the wavelength conversion element (100a) is also provided. The wavelength conversion element (100a) of the invention may improve conversion efficiency and thermal conductivity. The projection device (1) of the invention may reduce the problem that the image brightness decreases.