公开(公告)号：US20240137479A1

公开(公告)日：2024-04-25

申请号：US18400859

申请日：2023-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bing Zou ,  Xiao Li ,  Lei Mao

IPC: H04N13/31 ,  G02B30/30 ,  G02B30/35 ,  H04N13/32

CPC classification number: H04N13/31 ,  G02B30/30 ,  G02B30/35 ,  H04N13/32

Abstract: In an imaging method, an image source transmits N image source light beams to a light beam deflector in K periodicities, where N is a positive integer greater than or equal to 2, and K is a positive integer greater than or equal to 1. The light beam deflector deflects transmission directions of the N image source light beams to a plurality of viewing areas, where the N image source light beams transmitted to the plurality of viewing areas are respectively imaged in a plurality of display areas.

公开(公告)号：US11953803B2

公开(公告)日：2024-04-09

申请号：US17681097

申请日：2022-02-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zeshan Chang ,  Lei Mao ,  Liangjia Zong ,  Tong Li ,  Hong Yang

IPC: G02F1/31 ,  G09G3/36

CPC classification number: G02F1/31 ,  G09G3/3611 ,  G09G3/3659 ,  G02F2202/10

Abstract: Embodiments of the present application provide a method for controlling voltages of a liquid crystal on silicon (LCoS) two-dimensional array which includes a plurality of pixel sets, and the plurality of pixel sets include a first pixel set and a second pixel set. The method includes: determining a plurality of bit sequences, where the plurality of bit sequences include a first bit sequence and a second bit sequence; controlling a voltage of the first pixel set by using the first bit sequence; and controlling a voltage of the second pixel set by using the second bit sequence, where the first pixel set and the second pixel set are in different phase cycles in a port direction of the LCoS two-dimensional array, the first pixel set and the second pixel set have a same phase, and duty ratios of the first bit sequence and the second bit sequence are the same.

公开(公告)号：US10901294B2

公开(公告)日：2021-01-26

申请号：US16826548

申请日：2020-03-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liangjia Zong ,  Lei Mao ,  Mi Wang ,  Han Zhao

IPC: G02F1/31 ,  G02B6/35 ,  G02F1/1337

Abstract: A liquid crystal on silicon, a wavelength selective switch, an alignment direction obtaining method, and a method for manufacturing a liquid crystal on silicon. The liquid crystal on silicon has a first pixel area, and a first liquid crystal located in the first pixel area. The first liquid crystal is deflected in a plane perpendicular to a first panel, and is deflected towards a first direction in a plane parallel to the first panel. An alignment direction of the first partial alignment film located in the first pixel area is deflected towards a second direction relative to a polarization direction of an incident beam, and the second direction is opposite to the first direction to reduce a loss of a deflected beam.

公开(公告)号：US12055712B2

公开(公告)日：2024-08-06

申请号：US17986381

申请日：2022-11-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Mao ,  Tianhai Chang ,  Shimao Li ,  Zhiyong Huang

IPC: G02B27/01 ,  B60K35/00 ,  G02B27/28 ,  G09G3/00 ,  B60K35/23

CPC classification number: G02B27/0101 ,  B60K35/00 ,  G02B27/286 ,  G09G3/002 ,  B60K35/23 ,  B60K2360/23 ,  G02B2027/0123 ,  G09G2380/10

Abstract: This application provides example multi-focal-plane image generation apparatuses, example head-up display apparatuses, example methods, and example devices. One example apparatus includes a pattern generation device and a focal length adjuster. The pattern generation device is configured to generate a light beam that carries image information, and irradiate the light beam to a surface of the focal length adjuster. The focal length adjuster is configured to perform focal length adjustment on the light beam that is irradiated to the surface of the focal length adjuster to generate a plurality of focal planes of the multi-focal-plane image generation apparatus.

公开(公告)号：US20240201844A1

公开(公告)日：2024-06-20

申请号：US18588925

申请日：2024-02-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhentao Qin ,  Lei Mao ,  Zhiyong Huang

IPC: G06F3/04886 ,  B60K35/23 ,  G03B21/28 ,  G06T11/00

CPC classification number: G06F3/04886 ,  G03B21/28 ,  G06T11/00 ,  B60K35/23 ,  B60K2360/25

Abstract: A apparatus includes a picture generation unit, an enlarging and display unit, and a touch control unit. The picture generation unit is configured to generate a source image. The enlarging and display unit is configured to enlarge the source image generated by the picture generation unit. In addition, the picture generation unit is further configured to generate and project a touchscreen. The touch control unit is configured to detect and respond to a touch operation performed by a user on the touchscreen.

公开(公告)号：US11343010B2

公开(公告)日：2022-05-24

申请号：US17357468

申请日：2021-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Jia ,  Liangjia Zong ,  Bing Zou ,  Lei Mao ,  Chao Pan

IPC: H04B10/00 ,  H04J14/02 ,  H04B10/079 ,  H04B10/2569 ,  H04B10/61

Abstract: A polarization-dependent loss (PDL) determining method includes obtaining two groups of optical powers within first duration, selecting at least one group of target optical powers that satisfy a same power constraint from the two groups of optical powers, where each group of target optical powers includes a first target power and a second target power from the two groups of optical powers, and determining a PDL of the optical device based on the at least one group of target optical powers.

公开(公告)号：US20240255757A1

公开(公告)日：2024-08-01

申请号：US18633008

申请日：2024-04-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Han Zhao ,  Lei Mao ,  Zhiyong Huang ,  Xiao Li

IPC: G02B27/01 ,  G02B5/10 ,  G02B5/30

CPC classification number: G02B27/0101 ,  G02B5/10 ,  G02B5/3083 ,  G02B2027/013

Abstract: A display apparatus includes a picture generation unit, a transflective member, and a curved mirror. The picture generation unit is configured to generate imaging light including image information and project the imaging light to the transflective member, the transflective member is configured to reflect the imaging light to the curved mirror, the curved mirror is configured to reflect received imaging light to the transflective member, and the transflective member is further configured to transmit the imaging light reflected by the curved mirror.

公开(公告)号：US20240236286A9

公开(公告)日：2024-07-11

申请号：US18400859

申请日：2023-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bing Zou ,  Xiao Li ,  Lei Mao

IPC: H04N13/31 ,  G02B30/30 ,  G02B30/35 ,  H04N13/32

CPC classification number: H04N13/31 ,  G02B30/30 ,  G02B30/35 ,  H04N13/32

Abstract: In an imaging method, an image source transmits N image source light beams to a light beam deflector in K periodicities, where N is a positive integer greater than or equal to 2, and K is a positive integer greater than or equal to 1. The light beam deflector deflects transmission directions of the N image source light beams to a plurality of viewing areas, where the N image source light beams transmitted to the plurality of viewing areas are respectively imaged in a plurality of display areas.

公开(公告)号：US20230341758A1

公开(公告)日：2023-10-26

申请号：US18344386

申请日：2023-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Mao ,  Xiao Li ,  Zhiyong Huang ,  Shimao Li ,  Zhentao Qin

IPC: G03B21/20 ,  G03B21/62 ,  G02B27/12 ,  G02B27/09 ,  G03B21/28

CPC classification number: G03B21/208 ,  G03B21/62 ,  G02B27/126 ,  G02B27/0944 ,  G03B21/28 ,  G02B27/0961 ,  G02B27/0966

Abstract: A display system is provided. The display system includes a picture generation unit, a diffuser screen, and a curved mirror. The picture generation unit is configured to generate a real image and perform imaging on the diffuser screen. The diffuser screen is configured to perform diffuse reflection on the real image. The curved mirror is configured to perform imaging based on the real image obtained through diffuse reflection, to generate a magnified virtual image.

公开(公告)号：US11307354B2

公开(公告)日：2022-04-19

申请号：US17329426

申请日：2021-05-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Mao ,  Liangjia Zong

IPC: G02B6/26 ,  G02B6/293 ,  G02B6/35

Abstract: The technology described herein relates to a wavelength selective switch (WSS). An output port arrangement solution of an optical fiber array of the WSS includes: centers of output ports are arranged along a curve or along a combination line that includes a line segment, and a straight line connecting centers of any two output ports on the curve or the combination line does not pass through an input port. A light beam received from the input port is diffracted to the output ports through an LCoS panel, and a straight line that all diffraction orders that are generated after the diffraction pass through intersects with the curve or the line segment, and there is only one intersection point.