Invention Grant
- Patent Title: Projection screen
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Application No.: US17595800Application Date: 2020-05-18
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Publication No.: US11892765B2Publication Date: 2024-02-06
- Inventor: Shijie Li , Lin Wang , Fei Hu , Wei Sun , Yi Li
- Applicant: APPOTRONICS CORPORATION LIMITED
- Applicant Address: CN Guangdong
- Assignee: APPOTRONICS CORPORATION LIMITED
- Current Assignee: APPOTRONICS CORPORATION LIMITED
- Current Assignee Address: CN Guangdong
- Agency: Burris Law, PLLC
- Priority: CN 1910463752.4 2019.05.30
- International Application: PCT/CN2020/090757 2020.05.18
- International Announcement: WO2020/238663A 2020.12.03
- Date entered country: 2021-11-24
- Main IPC: G03B21/60
- IPC: G03B21/60 ; G02B5/02 ; G03B21/625 ; G03B21/56 ; G03B21/58 ; G03B21/62

Abstract:
A projection screen includes a substrate with a first substrate surface. The first substrate surface includes a first region and a second region adjacent to the first region. Multiple first wire grid bodies extending in a first direction are provided in the first region. Multiple second wire grid bodies extending in the first direction are provided in the second region. Each first wire grid body includes a first contact surface connected to the substrate and a first surface, and a first angle is formed therebetween. The first angles gradually decrease in a direction from the first region to the second region. Each second wire grid body includes a second contact surface connected to the substrate and a third surface, and a third angle is formed therebetween. The third angles gradually increase in a direction from the first region to the second region.
Public/Granted literature
- US20220221780A1 PROJECTION SCREEN Public/Granted day:2022-07-14
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