LIGHT SOURCE CONTROL METHOD FOR DISPLAY DEVICE AND DISPLAY DEVICE

    公开(公告)号:US20230021207A1

    公开(公告)日:2023-01-19

    申请号:US17425708

    申请日:2020-01-20

    Abstract: Provided is an array light source. The array light source includes light-emitting modules, a wavelength conversion apparatus configured to convert excitation light into excited light, a control apparatus configured to transmit a light modulation signal, and a light modulation apparatus configured to modulate the excited light based on the light modulation signal, emit the modulated light, and form a modulated image. Each light-emitting module is configured to emit the excitation light. The light-emitting modules include edge light emitting modules distributed along an edge of the array light source and center light-emitting modules surrounded by the edge light-emitting modules. A maximum luminous intensity of the edge light-emitting modules is greater than that of the center light-emitting modules.

    TRANSPARENT PROJECTION SCREEN, AND MANUFACTURING METHOD FOR SAME

    公开(公告)号:US20220390823A1

    公开(公告)日:2022-12-08

    申请号:US17891489

    申请日:2022-08-19

    Abstract: A transparent projection screen and a manufacturing method. The transparent projection screen is for receiving projection light and transmitting ambient light and comprises a first substrate layer, a Fresnel structure layer, a surface diffusion layer, a nano metal plating layer, and a binding adhesive layer. The Fresnel structure layer is disposed on the first substrate layer and comprises a prism surface. The surface diffusion layer is disposed on a portion of the prism surface. The nano metal plating layer is disposed on the surface diffusion layer. The binding adhesive layer is disposed on the nano metal plating layer and fills and levels the prism surface. The projection light passes the first substrate layer and is incident on the prism surface and then reflected thereby. The ambient light passes the binding adhesive layer, the nano metal plating layer, the surface diffusion layer and the first substrate layer, and is emitted.

    HEAD-UP DISPLAY SCREEN, HEAD-UP DISPLAY ASSEMBLY, AND VEHICLE

    公开(公告)号:US20220326517A1

    公开(公告)日:2022-10-13

    申请号:US17641618

    申请日:2020-08-31

    Abstract: A head-up display screen, a head-up display assembly, and a vehicle are provided. The head-up display screen is attached to an inner side of an attachment surface of a windshield and configured to reflect image light emitted towards the windshield. The head-up display screen includes a functional layer, a reflective layer, and a protective layer that are sequentially arranged in a direction from the windshield to a driving position. The functional layer includes prism microstructures protruding from the inner side of the attachment surface of the windshield. The reflective layer is at least attached to lower inclined surfaces of the prism microstructures and is configured to reflect the image light towards the driving position. The protective layer covers the reflective layer and the functional layer.

    LIGHT SOURCE SYSTEM AND DISPLAY APPARATUS

    公开(公告)号:US20220303511A1

    公开(公告)日:2022-09-22

    申请号:US17626783

    申请日:2020-06-28

    Abstract: Provided is a light source system, including: an excitation light source emitting excitation light; a wavelength conversion device having conversion and reflective regions located in different planes and time-sequentially located in optical path of the excitation light, the conversion region configured for converting at least part of the excitation light into excited light, and the reflective region configured for reflecting the excitation light; collection lens assembly configured to guide light from the conversion region to propagate along first direction to obtain first light, and guide the excitation light from the reflective region to propagate along second direction to obtain second light; first guide device configured to guide the excited light in the first light to exit along first path; and second guide device configured to guide the second light to propagate along second path. The first guide device combines the excited light and the second light to obtain source light.

    PROJECTION SCREEN AND PROJECTION SYSTEM

    公开(公告)号:US20220269159A1

    公开(公告)日:2022-08-25

    申请号:US17735685

    申请日:2022-05-03

    Abstract: The present application provides a projection screen and a projection system. The projection screen includes an optical structure layer and a reflective layer, where the optical structure layer includes a plurality of microstructure units; each of the plurality of microstructure units include a first sidewall and second sidewalls; the reflective layer covers at least part of the first sidewall to form a first working surface, and the reflective layer covers at least part of the second sidewalls to form second working surfaces, respectively; the first working surface deflects an input image beam, and at least part of the input image beam is transmitted to viewer's field and the second working surfaces; and the second working surfaces deflect an input image beam came from the first working surface, and the input image beam came from the first working surface is transmitted to the viewer's field. The present application improves the brightness evenness of the projection screen.

    PROJECTION SCREEN
    26.
    发明申请

    公开(公告)号:US20220268975A1

    公开(公告)日:2022-08-25

    申请号:US17597394

    申请日:2020-06-28

    Abstract: A projection screen with a design in which the apexes of multiple triangular pyramidal units of the projection screen in an array arrangement change gradually according to a predetermined relation, an image light shone from a projector is reflected by a microstructure layer having the triangular pyramidal units and then converged in a range centered around the human eyes, so as to reduce the degree of difference in brightness at different viewing positions, thus ensuring that the projection screen is provided with excellent uniformity and high gain.

    OPTICAL ENGINE SYSTEM AND DISPLAY APPARATUS

    公开(公告)号:US20220214553A1

    公开(公告)日:2022-07-07

    申请号:US17594767

    申请日:2020-06-24

    Abstract: n optical engine system and a display apparatus. The optical engine system es: a first modulation device modulat first linearly polarized light a first optical path to obtain first modulated light; a second modulation device to modulate second linearly polarized light a second optical path to obtain second modulated light, the first linearly polarized light and the second linearly polarized light having same polarization state; and a light combining prism guide the first modulated light and the second modulated light to transmit along same optical path and obtain project light. paths of the first modulated light, the second modulated light, and the project light are located in same plane.

    OPTICAL COATING FOR PROJECTION SCREEN

    公开(公告)号:US20220100073A1

    公开(公告)日:2022-03-31

    申请号:US17427224

    申请日:2020-01-18

    Inventor: Kejian CUI Fei HU Yi LI

    Abstract: Provided is an optical coating for a projection screen, containing the following components in parts by weight: 2-15 parts of light-absorbing material, 5-20 parts of aluminum silver powder, 20-60 parts of acrylate oligomer, 10-45 parts of diluent, 0.5-15 parts of photoinitiator, and 0.1-6 parts of auxiliary agent; the light-absorbing material is one or more of carbon black, lamp black, iron black, and aniline black, and has an average particle size of 20-2000 nm; the aluminum silver powder is flake-shaped and has an average particle size of 3-10 μm.

    TOTAL INTERNAL REFLECTION SCREEN AND PROJECTION SYSTEM

    公开(公告)号:US20220075250A1

    公开(公告)日:2022-03-10

    申请号:US17455107

    申请日:2021-11-16

    Inventor: Lin WANG Fei HU Yi LI

    Abstract: A total reflection screen comprises a light diffusion layer, a total reflection layer and a light absorption layer arranged sequentially from an incidence side of the projected light. The light absorption layer can absorb an incident light. The light diffusion layer is used for increasing a divergence angle of emergent light. The total reflection layer comprises a plurality of microstructure units that is rotationally symmetrical and extends continuously in a plane of the total reflection screen. Each of the microstructure units comprises a first material layer disposed at the side of the light diffusion layer and a second material layer disposed at the side of the light absorption layer. The interface between the first material layer and the second material layer is comprised of two intersecting planes, which are disposed in such a way that the projected light is subjected to total reflection continuously at the two intersecting planes.

    PROJECTION SCREEN AND PROJECTION SYSTEM

    公开(公告)号:US20210389658A1

    公开(公告)日:2021-12-16

    申请号:US17291261

    申请日:2019-09-26

    Abstract: A projection screen and a projection system. The projection screen includes a reflection layer and a light absorption layer for absorbing light which are sequentially arranged from an incident side of projection light; the reflection layer comprises multiple microstructure units; each microstructure unit comprises a first plane and a second plane which are opposite to each other at an angle in a first direction as well as a third plane and a fourth plane which are opposite to each other at an angle in a second direction.

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