Invention Grant
- Patent Title: Transparent screen sheet, transparent screen, and image display system
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Application No.: US15989897Application Date: 2018-05-25
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Publication No.: US10852632B2Publication Date: 2020-12-01
- Inventor: Yukihiro Tao , Kenta Sekikawa , Yuriko Kaida
- Applicant: AGC Inc.
- Applicant Address: JP Chiyoda-ku
- Assignee: AGC Inc.
- Current Assignee: AGC Inc.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2015-235236 20151201
- Main IPC: G03B21/62
- IPC: G03B21/62 ; G02B5/02 ; H04N5/74 ; G02B5/08

Abstract:
A transparent screen sheet that displays images projected from a front side of the transparent screen sheet and/or a rear side of the transparent screen sheet to a user on the front side, and causes the user on the front side to view a rear background behind the rear side. The transparent screen sheet includes an image display layer configured to display the images; and a resin film that holds the image display layer. A difference between a maximum value and a minimum value of retardations of the resin film measured by irradiating a main surface of the resin film with a light with a wavelength of 460 nm in a direction orthogonal to the main surface, within a region on the main surface that overlaps with the image display layer, is one fourth of the wavelength of the light or less.
Public/Granted literature
- US20180275505A1 TRANSPARENT SCREEN SHEET, TRANSPARENT SCREEN, AND IMAGE DISPLAY SYSTEM Public/Granted day:2018-09-27
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