Invention Grant
- Patent Title: Display and method of producing display
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Application No.: US16890314Application Date: 2020-06-02
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Publication No.: US11555952B2Publication Date: 2023-01-17
- Inventor: Keitaro Sugihara , Hanako Yamamoto , Tomoko Tashiro , Kazuhiro Yashiki
- Applicant: TOPPAN PRINTING CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: TOPPAN PRINTING CO., LTD.
- Current Assignee: TOPPAN PRINTING CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JPJP2017-241723 20171218,JPJP2017-251632 20171227
- Main IPC: G09F19/14
- IPC: G09F19/14 ; G02B5/28 ; G02B5/04 ; G02B5/22

Abstract:
A display having high resistance to counterfeiting including a micro concavo-convex structure layer on a predetermined reference surface, the micro concavo-convex structure layer having a plurality of microstructures arranged on the reference surface. Each of the microstructures is formed of a prism structure made of a material that transmits light with a triangular cross-section having a first surface inclined relative to the reference surface in side view, and a second surface having an inclination angle relative to the reference surface such that the inclination angle is larger than an inclination angle of the first surface relative to the reference surface. A color layer as an example of a functional layer is provided on the second surface of all or some of the plurality of microstructures.
Public/Granted literature
- US20200301052A1 DISPLAY AND METHOD OF PRODUCING DISPLAY Public/Granted day:2020-09-24
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