公开(公告)号：US11614657B2

公开(公告)日：2023-03-28

申请号：US17126722

申请日：2020-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Minchang Wang ,  Wenxiong Wei ,  Yi Hu ,  Yonghao Zhu

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/13357 ,  G02F1/133 ,  F21V8/00 ,  G02B5/20 ,  G02B5/04

Abstract: A full-screen optical component, applied to an electronic device comprising a display screen, comprising a backlight module, an active light sensor including a sensor and a light emitter, and a dimmer. The display screen and the active light sensor are located on two opposite sides of the backlight module. The backlight module includes a first prism film and a second prism film stacked on the first prism film. The first prism film includes several first prisms. The second prism film includes several second prisms. The first prism includes a first in-light surface, and the second prism includes a second in-light surface. A display surface of the display screen, the first in-light surface, and the second in-light surface are disposed in parallel. The dimmer is configured to direct light emitted by the light emitter to the first in-light surface at an incident angle that is inclined relative to a vertical direction.

公开(公告)号：US20210103188A1

公开(公告)日：2021-04-08

申请号：US17126722

申请日：2020-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Minchang Wang ,  Wenxiong Wei ,  Yi Hu ,  Yonghao Zhu

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/13357

Abstract: A full-screen optical component, applied to an electronic device comprising a display screen, comprising a backlight module, an active light sensor including a sensor and a light emitter, and a dimmer. The display screen and the active light sensor are located on two opposite sides of the backlight module. The backlight module includes a first prism film and a second prism film stacked on the first prism film. The first prism film includes several first prisms. The second prism film includes several second prisms. The first prism includes a first in-light surface, and the second prism includes a second in-light surface. A display surface of the display screen, the first in-light surface, and the second in-light surface are disposed in parallel. The dimmer is configured to direct light emitted by the light emitter to the first in-light surface at an incident angle that is inclined relative to a vertical direction.

公开(公告)号：US11688346B2

公开(公告)日：2023-06-27

申请号：US17481797

申请日：2021-09-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Minchang Wang ,  Hui Meng ,  Xinyu Zhao ,  Jun Tao

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G2310/061 ,  G09G2370/18

Abstract: An electronic device includes a display screen, a display control circuit, an active optical component, and an optical control circuit. The active optical component is located below the display screen. The display control circuit is configured to control refreshing of the display screen, and output a synchronization signal to the optical control circuit. The optical control circuit is configured to receive the synchronization signal, and control the active optical component to start light emission after a predetermined first delay that is after a moment corresponding to the synchronization signal to enable the display control circuit to refresh to one row of at least one row on the display screen corresponding to the active optical component after a predetermined second delay that is after the active optical component completes light emission.

公开(公告)号：US20220005416A1

公开(公告)日：2022-01-06

申请号：US17481797

申请日：2021-09-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Minchang Wang ,  Hui Meng ,  Xinyu Zhao ,  Jun Tao

IPC: G09G3/3258

Abstract: Embodiments of this application disclose an electronic device, including a display screen, a display control circuit, an active optical component, and an optical control circuit. The active optical component is located below the display screen. The display control circuit is configured to control refreshing of the display screen, and output a synchronization signal to the optical control circuit. The optical control circuit is configured to receive the synchronization signal, and control the active optical component to start light emission after a predetermined first delay after a moment corresponding to the synchronization signal, so that after a predetermined second delay after the active optical component completes light emission, the display control circuit refreshes to one row of at least one row on the display screen corresponding to the active optical component.