公开(公告)号：US20220397750A1

公开(公告)日：2022-12-15

申请号：US17607778

申请日：2020-12-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhenxing ZHOU ,  Tao HONG ,  Haoran JING ,  Gaoming SUN

IPC: G02B17/08 ,  G02B27/28 ,  G02B30/25

Abstract: An optical system includes at least one first display module, at least one second display module, and a first optical element. The first optical element includes a first light incident surface, a second light incident surface, and a viewing surface. The first light incident surface is configured to transmit imaging light emitted from the at least one first display module into the first optical element and refract it onto the second light incident surface. The second light incident surface is configured to transmit imaging light emitted from the at least one second display module into the first optical element and refract it onto the viewing surface, and reflect the imaging light transmitted into the first optical element through the first light incident surface onto the viewing surface. The viewing surface is configured to transmit the imaging light emitted from all display modules to a human eye.

公开(公告)号：US20220342232A1

公开(公告)日：2022-10-27

申请号：US17422456

申请日：2020-02-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tao HONG

IPC: G02B30/56 ,  G02B1/00

Abstract: The present disclosure relates to an electronic device, a display device, and a driving method for the display device, and relates to the field of display technology. The display device includes a display panel, a polarization conversion layer, and a lens layer. The display panel is used to display multiple depth-of-field images in a time-division way during a frame. The polarization conversion layer is arranged on the light exit side of the display panel, and is used to convert light for different depth-of-field images into polarized light of different polarization states. The lens layer is arranged on the side of the polarization conversion layer away from the display panel, and includes a plurality of lens units, each lens unit including a metasurface lens.

公开(公告)号：US20220236585A1

公开(公告)日：2022-07-28

申请号：US17435312

申请日：2020-11-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jinye ZHU ,  Sen MA ,  Zhichong WANG ,  Tao HONG ,  Junxing YANG ,  Jing YU ,  Tianyang HAN

IPC: G02B30/31 ,  G02F1/1343 ,  G02F1/133

Abstract: The present disclosure provides a grating including: a first substrate including stacked first and second electrode layers each including strip-shaped electrodes with an identical width, strip-shaped electrodes in the first and second electrode layers arranged alternately; a second substrate opposite to the first substrate with a liquid crystal layer therebetween; driving modules for driving the strip-shaped electrodes to form light shading parts and light transmission parts, one light shading part and one adjacent light transmission part defining a grating unit, at least one grating unit defining a grating part, the driving modules arranged in one-to-one correspondence with the grating parts; and a control module for generating driving signals in one-to-one correspondence with the driving modules according to a distance between the human eyes and the grating, thereby changing a width of the grating unit corresponding to a crosstalk position. A 3D display device and a grating driving method are provided.

公开(公告)号：US20220146853A1

公开(公告)日：2022-05-12

申请号：US17435367

申请日：2021-02-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jian GAO ,  Tao HONG ,  Wenji ZHU

IPC: G02B30/10

Abstract: The present disclosure relates to a light field display system including: a plurality of light field display modules spliced at an angle, wherein each of the light field display modules includes a display screen and a micro-lens array located on a light-emitting side of the display screen; a lens group, including a plurality of spliced lenses corresponding to the plurality of light field display modules on a one-to-one basis, wherein the lens group is located on a side, away from the display screen, of the micro-lens array and configured to form a plurality of first imaging faces corresponding to the plurality of light field display modules on a one-to-one basis on one side, away from the micro-lens array, of the display screen, and the plurality of first imaging faces are seamlessly spliced to form a plurality of second imaging faces seamlessly spliced on a side, away from the light field display module, of the plurality of first imaging faces, wherein the first imaging face is configured to display an upright virtual image of the corresponding light field display module.

公开(公告)号：US20210215947A1

公开(公告)日：2021-07-15

申请号：US16753361

申请日：2019-03-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD

Inventor： Tao HONG

IPC: G02B30/10 ,  G02B27/28 ,  H04N13/398 ,  H04N13/307

Abstract: An integrated imaging display system is provided. The system includes: a display device, and a polarization converting element, an optical path folding element, and a micro-lens array provided on a light emitting side of the display device. The polarization converting element is configured to convert light emitted from the display device into first linearly polarized light in a first polarization state and second linearly polarized light in a second polarization state; and the micro-lens array is configured to form a first three-dimensional display image in a first depth-of-field range based on the first linearly polarized light and form a second three-dimensional display image in a second depth-of-field range based on the second linearly polarized light. Two depth-of-field ranges in the imaging space of the system may be formed, which enlarges the depth-of-field range of the imaging space.

公开(公告)号：US20200209960A1

公开(公告)日：2020-07-02

申请号：US16633599

申请日：2019-05-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tao HONG

IPC: G06F3/01 ,  B60K35/00

Abstract: A head-up display system and display method, a vehicle, and a computer product. The head-up display system includes: a display device configured to output first linearly polarized light for displaying a first image in a first time intervals and output second linearly polarized lit ht for displaying, a second image in a second time intervals; and a polarization beam splitting element in an optical path of light exiting from the display device, being configured to deflect a propagation direction of the first linearly polarized light by a first angle and deflect a propagation direction of the second linearly polarized light by a second angle, and the first angle and the second angle are different from each other.

公开(公告)号：US20190219819A1

公开(公告)日：2019-07-18

申请号：US16176388

申请日：2018-10-31

Applicant: BOE Technology Group Co., Ltd.

Inventor： Tao HONG

IPC: G02B27/01 ,  G02B27/28 ,  G02B27/30 ,  B60K35/00 ,  G09G3/00

CPC classification number: G02B27/0101 ,  B60K35/00 ,  B60K2370/334 ,  B60K2370/349 ,  B60K2370/52 ,  G02B27/283 ,  G02B27/286 ,  G02B27/30 ,  G02B2027/011 ,  G02B2027/014 ,  G09G3/001 ,  G09G2310/08 ,  G09G2380/10

Abstract: A display apparatus and a method for driving the same are provided. The display apparatus includes: a timing control circuit; a display source, configured to generate a light having first display information and a light having second display information, under control of the timing control circuit, during mutually alternate first and second timings, respectively; a polarizer, configured to, under control of the timing control circuit, convert the light having the first display information into a first linearly polarized light during the first timing, and convert the light having the second display information into a second linearly polarized light during the second timing; and an optical path controller, configured to receive the first linearly polarized light and the second linearly polarized light from the polarizer, and to project the first linearly polarized light and the second linearly polarized light, spatially separate from each other, into a user's eyes.

公开(公告)号：US20230204954A1

公开(公告)日：2023-06-29

申请号：US18116814

申请日：2023-03-02

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tao HONG

IPC: G02B27/01 ,  G02B5/30 ,  G02B27/00 ,  G02F1/29

CPC classification number: G02B27/0101 ,  G02B5/3083 ,  G02B27/0093 ,  G02F1/294 ,  G02B2027/0134

Abstract: A near-eye display device and a near-eye display method are provided. In the near-eye display device and method, displaying a first image and a second image in different time periods by using a display portion; converting light of the first image to first linearly polarized light and converting light of the second image to second linearly polarized light by using a polarization conversion portion, a polarization direction of the first linearly polarized light being different from that of the second linearly polarized light; receiving the first linearly polarized light and the second linearly polarized light, and causing them to be emitted towards different directions by using a polarization splitting portion; and transmitting the first linearly polarized light and transmitting the second linearly polarized light by using an image light transmission portion. It can solve the problem of fatigue and dizziness of user's eyes.

公开(公告)号：US20230188700A1

公开(公告)日：2023-06-15

申请号：US17765453

申请日：2021-05-12

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jinye ZHU ,  Jian GAO ,  Junxing YANG ,  Tao HONG ,  Jing LIU ,  Jing YU ,  Tianyang HAN

IPC: H04N13/302 ,  H04N13/354 ,  G06T7/62 ,  G06V10/60 ,  G06V10/74 ,  G06F3/14 ,  G09G3/32

CPC classification number: H04N13/302 ,  H04N13/354 ,  G06T7/62 ,  G06V10/60 ,  G06V10/761 ,  G06F3/14 ,  G09G3/32

Abstract: A method, a system, a processing device and a computer storage medium for evaluating a viewpoint density are provided. The method includes: acquiring a quantity of viewpoints of a display panel; comparing a size of an image spot radius of each viewpoint and image point spacing between the viewpoint and an adjacent viewpoint, and selecting one viewpoint as a reference viewpoint, calculating a crosstalk value between another viewpoint except the reference viewpoint and the reference viewpoint; and evaluating a viewpoint density for the auto-stereoscopic display according to the comparison of the size of the image spot radius of each viewpoint and the image point spacing between the viewpoint and the adjacent viewpoint and the calculated crosstalk value between the another viewpoint and the reference viewpoint.

公开(公告)号：US20220171206A1

公开(公告)日：2022-06-02

申请号：US17363217

申请日：2021-06-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jinye ZHU ,  Jian GAO ,  Fang CHENG ,  Tao HONG ,  Jing YU ,  Tianyang HAN

IPC: G02B27/09 ,  G02B27/01 ,  H01L51/52 ,  G02F1/1335

Abstract: A display apparatus including: a display screen including multiple light-emitting points and a first side, wherein light generated by the light-emitting points emits from the first side; and a microlens array provided on the first side of the display screen, the microlens array includes multiple microlenses arranged in an array, an orthographic projection of the microlens array on the display screen covers the display screen, and the display screen is provided on a focal surface of the microlens array. The focal lengths of the multiple microlenses increase sequentially from the center of the microlens array to the edge of the microlens array, so that a beam width of the light that is emitted from each light-emitting point of the display, transmits through the microlens array and is incident into a pupil of a human eye is less than a preset threshold.