公开(公告)号：US20220036855A1

公开(公告)日：2022-02-03

申请号：US17504356

申请日：2021-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Atanas BOEV ,  Panji SETIAWAN ,  Bogdan Cihodariu IONITA

IPC: G09G5/04 ,  G09G5/39 ,  G09G5/10

Abstract: The present disclosure provides a device, in particular a multifocal display device. The device includes: a display element configured to generate an image; and a controller configured to control the display element according to at least a first bit sequence provided over a first determined time period and a second bit sequence provided over a second determined time period, in order to generate the image with one or more colors, the bit sequences including for each color a number of bits of different significance. Moreover, the device is configured to generate the first bit sequence from an original bit sequence based on discarding at least one bit of a color and to generate the second bit sequence from the original bit sequence based on discarding at least one other bit of the color.

公开(公告)号：US20210227186A1

公开(公告)日：2021-07-22

申请号：US17140808

申请日：2021-01-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hector NAVARRO FRUCTUOSO ,  Bogdan Cihodariu IONITA ,  Atanas BOEV ,  Panji SETIAWAN

IPC: H04N9/31 ,  G06F3/01 ,  G02B27/01

Abstract: The disclosure relates to a retinal display apparatus for generating an image on the retina of an eye of a user, wherein the retinal display apparatus is configured to generate multiple light beams, each light beam conveying an instance of the image, wherein the multiple light beams correspond one-to-one to multiple potential orientations of the eye of the user. Moreover, the disclosure relates to a corresponding method.

公开(公告)号：US20220035168A1

公开(公告)日：2022-02-03

申请号：US17504340

申请日：2021-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Atanas BOEV ,  Hector NAVARRO FRUCTUOSO ,  Bogdan Cihodariu IONITA ,  Panji SETIAWAN

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

Abstract: An optical system for a display device for head mounting is described. In particular a Maxwellian display device, with an enlarged eye-box is described. The optical system includes a beam forming element configured to converge multiple sets of light beams into at least two points of convergence (e.g., on an exit pupil of the optical system or of the display device using the optical system), and at least one optical arrangement comprising an input for input light beams, at least one beam splitter and at least three reflectors. The at least one beam splitter and at least three reflectors are positioned to form the multiple sets of the light beams from the input light beams such that the multiple sets of the light beams have equally long beam paths from the input to the beam forming element. Each point of convergence is a convergent viewing point for a user, thus enlarging the eye-box.

公开(公告)号：US20200186785A1

公开(公告)日：2020-06-11

申请号：US16791885

申请日：2020-02-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Atanas BOEV ,  Hector NAVARRO FRUCTUOSO ,  Panji SETIAWAN

IPC: H04N13/322 ,  G02B3/14

Abstract: A multifocal display device has a focus tunable lens (FTL) and a controller configured to shift a focus of the FTL from a first focal plane to a second focal plane by applying a compensated control signal to the FTL. The controller is configured to generate a current compensated control signal value, which is a value of the compensated control signal for a current point in time, based on one or more previous compensated control signal values, which are values of the compensated control signal at one or more previous points in time.

公开(公告)号：US20220020132A1

公开(公告)日：2022-01-20

申请号：US17491007

申请日：2021-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lukasz KONDRAD ,  Atanas BOEV ,  Panji SETIAWAN ,  Bogdan Cihodariu IONITA

IPC: G06T5/50 ,  G06T5/00 ,  G06T5/20 ,  G02B30/52

Abstract: The present disclosure provides a an image processing device for providing a plurality of enhanced partial images which together represent an enhanced three-dimensional, 3D, image, wherein each enhanced partial image is a two-dimensional, 2D, image associated with one of a plurality of focal planes. The image processing device includes processing circuitry configured to receive or generate a plurality of initial partial images, which together form an initial 3D image, wherein each initial partial image is a 2D image associated with one of the plurality of focal planes; and to generate, from each of the initial partial images, an enhanced partial image by generating a blurred version of the initial partial image; and blending the initial partial image with the blurred version of the initial partial image.

公开(公告)号：US20210144360A1

公开(公告)日：2021-05-13

申请号：US17156105

申请日：2021-01-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Atanas BOEV ,  Panji SETIAWAN ,  Bogdan Cihodariu IONITA

IPC: H04N13/322 ,  G02B3/14 ,  H04N13/398 ,  H04N13/194

Abstract: An image transmission device of a multifocal display system is described, for transmitting a set of N composite images based on a set of N primary images to an image reception device. N is greater or equal 2, and each of the N primary images has a focus distance associated therewith. The image transmission device includes processing circuitry configured to partition each of the N primary images into image portions and generate the N composite images by placing each image portion of each of the N primary images into one of the N composite images such that each of the N composite images comprises image portions from two or more of the N primary images. A communication interface transmits the N composite images to the image reception device (103).

公开(公告)号：US20200150379A1

公开(公告)日：2020-05-14

申请号：US16741849

申请日：2020-01-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Atanas BOEV ,  Panji SETIAWAN

IPC: G02B7/09 ,  G02B30/52

Abstract: A multifocal display device has a focus tunable lens, a controller, and a storage. The controller selectively tunes the focus of the lens to a plurality of focal planes of different index during a frame per A focal plane of lower index has a shorter focal distance. The storage stores a plurality of focal plane groups, each group including the plurality of focal planes in a different sequence. The controller selects a first group and tunes, during a first frame period, the focus of the lens to each one of the focal planes in the first group according to their sequence, and selects a second group from groups allowed by a selection rule, and tunes, during a second frame period, the focus of the lens to each one of the focal planes in the second group according to their sequence.

公开(公告)号：US20220124297A1

公开(公告)日：2022-04-21

申请号：US17561429

申请日：2021-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bogdan Cihodariu IONITA ,  Atanas BOEV ,  Panji SETIAWAN

IPC: H04N13/144 ,  H04N13/344

Abstract: The present invention provides a device comprising circuitry configured to obtain a plurality of initial two-dimensional, 2D, images which together represent an initial three-dimensional, 3D, image, wherein each initial 2D image is associated with one of a plurality of focal planes. The device is further configured to generate one or more blurred versions of each of the initial 2D images on one or more of the focal planes other than its associated focal plane; generate a high passed version of each of the initial 2D images on its associated focal plane; and generate a plurality of final 2D images by generating for each focal plane a final 2D image based on the high passed version of the initial 2D image associated with that focal plane and one or more blurred versions generated on that focal plane from one or more of the other initial 2D images.

公开(公告)号：US20210389603A1

公开(公告)日：2021-12-16

申请号：US17461501

申请日：2021-08-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hector NAVARRO FRUCTUOSO ,  Atanas BOEV ,  Panji SETIAWAN ,  Onay URFALIOGLU

IPC: G02B30/40 ,  H04N13/167 ,  H04N13/144 ,  H04N13/351 ,  H04N13/398 ,  G02B7/06

Abstract: A focus tunable optical system includes a compound lens, which includes a plurality of focus tunable lenses. Further, the focus tunable optical system comprises a controller, which is configured to shift a focus of the compound lens from a first focal plane to a second focal plane. To this end, the controller is configured to apply, individually to each focus tunable lens of the plurality of the focus tunable lenses, a control signal having a first value for the first focal plane and a second value for the second focal plane.

公开(公告)号：US20200257134A1

公开(公告)日：2020-08-13

申请号：US16844841

申请日：2020-04-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hector NAVARRO FRUCTUOSO ,  Atanas BOEV ,  Panji SETIAWAN ,  Onay URFALIOGLU

IPC: G02B30/40 ,  H04N13/144 ,  H04N13/167 ,  H04N13/398 ,  H04N13/351 ,  G02B7/06

Abstract: A focus tunable optical system includes a compound lens, which includes a plurality of focus tunable lenses. Further, the focus tunable optical system includes a controller, which is configured to shift a focus of the compound lens from a first focal plane to a second focal plane. To this end, the controller is configured to apply, individually to each focus tunable lens of the plurality of the focus tunable lenses, a control signal having a first value for the first focal plane and a second value for the second focal plane.