公开(公告)号：US20240213294A1

公开(公告)日：2024-06-27

申请号：US18088356

申请日：2022-12-23

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： Xuzhou LI ,  Ruipeng SUN

IPC: H01L27/15

CPC classification number: H01L27/156

Abstract: Technologies are described for micro-LED devices that employ a resonant micro-cavity structure to promote direction emission. The described techniques facilitate a narrowed emission spectra, with improved optical efficiency and reduced energy consumption. The light emission profiles are collimated by the cavity effect in the LED, yielding improving brightness and significantly reducing the required optical power to achieve the desired brightness. The described resonant micro-cavity structures emit light for certain desired optical modes, while suppressing certain other modes that are not desired. Concave surfaces in the resonance micro-cavity structures may be used to further confine light propagation in the horizontal direction, achieve better collimation, and reduce pixel level crosstalk. Micro-lenses can be used to further enhance the desirable light collimation effects of the described devices.

公开(公告)号：US20230384582A1

公开(公告)日：2023-11-30

申请号：US17827413

申请日：2022-05-27

Applicant: Microsoft Technology Licensing, LLC

Inventor： Wenjun LIAO ,  Algird Michael GUDAITIS ,  Ruipeng SUN

IPC: G02B26/08 ,  H03H21/00 ,  B81B7/00

CPC classification number: G02B26/0833 ,  H03H21/0021 ,  B81B7/008 ,  B81B2201/042

Abstract: The configuring of a micromirror to suppress a resonance of the micromirror. As part of the configuring process, the micromirror is subjected to multiple actuation frequencies, and the micromirror response is measured in response to at least some of these actuation frequencies. A resonant frequency of the micromirror is then determined using at least some of the measured mechanical responses. Then, depending on this determined resonant frequency of the micromirror, notch filter parameters are selected. There is more than one possibility for notch filter parameters, where the selected possibility depends on the determined resonant frequency. The notch filter is then configured with the selected notch filter parameters.

公开(公告)号：US20230296887A1

公开(公告)日：2023-09-21

申请号：US17698863

申请日：2022-03-18

Applicant: Microsoft Technology Licensing, LLC

Inventor： Xuzhou LI ,  FEI CHEN ,  Ruipeng SUN

IPC: G02B27/01 ,  G06T19/00 ,  G02B3/00

CPC classification number: G02B27/0101 ,  G06T19/006 ,  G02B3/0037

Abstract: An emissive panel display comprising an array of microLEDs for producing pixels for images in a projection display system is configured with an array of microlenses in which each microlens in the array corresponds to a respective pixel on the panel display. The configuration of the microlenses varies based on their distance in the plane of the panel display from a central projected axis. Microlenses may be configured with surfaces that are optimized to improve optical efficiency. To improve display illumination uniformity, a microlens may be configured to manipulate the emission angular profile for a given pixel over a wide range to match its chief ray angle (CRA), in which the chief ray for the pixel passes through a center of an entrance pupil of projection optics in the display system.

公开(公告)号：US20190227315A1

公开(公告)日：2019-07-25

申请号：US15877218

申请日：2018-01-22

Applicant: Microsoft Technology Licensing, LLC

Inventor： Ruipeng SUN ,  Yarn Chee POON ,  Chuan PU ,  Richard Allen JAMES ,  Joshua Owen MILLER

IPC: G02B27/01 ,  G02B27/14 ,  G02B27/10 ,  G02B26/08

Abstract: A display system includes a first light source, a second light source, at least one movable mirror, and an attenuator. The first light source is configured to provide a first light in a first optical path. The second light source is configured to provide a second light in a second optical path. A portion of the second optical path overlaps the first optical path in an overlapping portion. The attenuator is positioned in at least the first optical path and configured to attenuate at least the first light. The movable mirror is movable to deflect the overlapping portion.

公开(公告)号：US20200159007A1

公开(公告)日：2020-05-21

申请号：US16198248

申请日：2018-11-21

Applicant: Microsoft Technology Licensing, LLC

Inventor： Ruipeng SUN ,  Chuan PU

IPC: G02B26/10 ,  G02B26/08 ,  G09G3/02 ,  G09G3/20

Abstract: Examples are disclosed that relate to display systems, devices, and methods for producing a viewable image using a plurality of individually-addressable vertical cavity surface emitting lasers (VCSELs) arranged into an array. In one example, a display system comprises a light source comprising a plurality of VCSELs arranged into an array comprising one or more first color rows of VCSELs configured to produce a first color, one or more second color rows of VCSELs configured to produce a second color, and one or more third color rows of VCSELs configured to produce a third color. Each VCSEL in a given row has a coordinate that is staggered relative to a coordinate each of the VCSELs in one or more rows adjacent to the given row. The display system also comprises a scanning system to direct light from at least a portion of the plurality of VCSELs to produce a viewable image.