Title:
LASER PROJECTION DEVICE AND PROMPT METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/126956
Kind Code:
A1
Abstract:
Provided are a laser projection device and a prompt method therefor. The method comprises: if it is detected that the position of a target object is within any threshold detection range, a laser projection device generating a prompt picture according to a target position, and displaying, on a main picture of a projection screen, a prompt picture that comprises text information for indicating the target position of the target object, and/or image information for indicating a relative position between the target object and the laser projection device, such that a user can keep away from the projection screen in a timely manner under the prompt of the prompt picture, so as to protect the eyes of the user.
Inventors:
TANG TIANTIAN (CN)
LIU XIANRONG (CN)
LIU XIANRONG (CN)
Application Number:
PCT/CN2021/089277
Publication Date:
June 23, 2022
Filing Date:
April 23, 2021
Export Citation:
Assignee:
HISENSE LASER DISPLAY CO LTD (CN)
International Classes:
H04N9/31
Foreign References:
CN112616046A | 2021-04-06 | |||
CN105491311A | 2016-04-13 | |||
CN201716417U | 2011-01-19 | |||
CN107864267A | 2018-03-30 | |||
CN108600715A | 2018-09-28 | |||
CN111818316A | 2020-10-23 | |||
CN103700229A | 2014-04-02 | |||
KR20200043108A | 2020-04-27 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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