Transparent screen, transparent screen assembly, manufacturing method of transparent screen, and manufacturing method of transparent screen assembly

Patent metadata

Field	Value
Publication number	US-11022873-B2
Application number	US-201815905880-A
Country	US
Kind code	B2
Filing date	Feb 27, 2018
Priority date	Sep 3, 2015
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

Abstract

A transparent screen includes a plurality of transparent plates arranged in a front-rear direction; and a screen main body, interposed between the transparent plates, configured to display video images projected from a front side or a rear side of the transparent screen to a user on the front side, and enable a rear background to be visually recognized by the user. In a cross section orthogonal to a part of an outer edge of the transparent screen, the transparent screen has a curved shape, and a length of a center line in a plate thickness direction of the transparent plate on an external side of the screen main body in a curvature radius direction of the curved shape is greater than a length of a center line of the transparent plate on an internal side of the screen main body.

First claim

What is claimed is:

1. A transparent screen, comprising:
a front transparent plate comprising a glass plate;
a rear transparent plate comprising a glass plate and positioned with respect to the front transparent plate such that the front and rear transparent plates are laminated in a front-rear direction; and
a screen main body interposed between the front and rear transparent plates and comprising a plurality of adhesion layers and a screen sheet interposed between the adhesion layers such that the adhesion layers are adhering the screen main body to the front and rear transparent plates respectively and that the screen main body is configured to display a video image projected from a front side of the screen main body to a user on the front side of the screen main body and enable a rear background to be visually recognized through the screen main body by the user,
wherein the screen sheet of the screen main body includes an irregular layer having an irregular surface pattern, a reflection film formed along the irregular surface pattern of the irregular layer such that the reflection film is configured to reflect a part of light incident on the front side of the screen main body and transmit a part of light incident from a rear side of the screen main body to the front side of the front transparent plate, and a covering layer covering the irregular surface pattern of the reflection film, the front and rear transparent plates and the screen main body have a curved shape in a cross section orthogonal to outer edge portions of the front and rear transparent plates, and the front and rear transparent plates are formed such that a length of a center line in a plate thickness direction of one of the front and rear transparent plates on an external side of the screen main body in a curvature radius direction of the curved shape is greater than a length of a center line in a plate thickness direction of the other one of the front and rear transparent plates on an internal side of the screen main body in the curvature radius direction.

2. The transparent screen according to claim 1 , wherein the front and rear transparent plates are formed such that a difference between end surfaces of the front and rear transparent plates is 5 mm or less in the cross section.

3. The transparent screen according to claim 2 , wherein each of the front and rear transparent plates is the glass plate comprising a strengthened glass.

4. The transparent screen according to claim 2 , wherein at least one of the front and rear transparent plates is the glass plate comprising a strengthened glass.

5. The transparent screen according to claim 2 , wherein one of the front and rear transparent plates is the glass plate comprising a strengthened glass.

6. The transparent screen according to claim 2 , wherein the front and rear transparent plates are formed such that the front and rear transparent plates have a flat shape in a cross section orthogonal to other edge portions of the front and rear transparent plates.

7. The transparent screen according to claim 1 , wherein the front and rear transparent plates are formed such that a difference between end surfaces of the front and rear transparent plates is 2 mm or less in the cross section.

8. The transparent screen according to claim 7 , wherein each of the front and rear transparent plates is the glass plate comprising a strengthened glass.

9. The transparent screen according to claim 7 , wherein at least one of the front and rear transparent plates is the glass plate comprising a strengthened glass.

10. The transparent screen according to claim 1 , wherein the front and rear transparent plates are formed such that the front and rear transparent plates have a flat shape in a cross section orthogonal to other edge portions of the front and rear transparent plates.

11. The transparent screen according to claim 10 , wherein each of the front and rear transparent plates is the glass plate comprising a strengthened glass.

12. The transparent screen according to claim 10 , wherein at least one of the front and rear transparent plates is the glass plate comprising a strengthened glass.

13. The transparent screen according to claim 10 , wherein one of the front and rear transparent plates is the glass plate comprising a strengthened glass.

14. The transparent screen according to claim 1 , wherein each of the front and rear transparent plates is the glass plate comprising a strengthened glass.

15. The transparent screen according to claim 1 , wherein at least one of the front and rear transparent plates is the glass plate comprising a strengthened glass.

16. A transparent screen assembly, comprising:
the transparent screen of claim 1 in a plurality; and
a holding member configured to hold the plurality of transparent screens successively.

17. A method of a transparent screen assembly, comprising:
manufacturing the transparent screen of claim 1 in a plurality; and
holding the plurality of transparent screen using a holding member configured to hold the plurality of transparent screens successively such that the plurality of transparent screens is connected successively.

18. The transparent screen according to claim 1 , wherein one of the front and rear transparent plates is the glass plate comprising a strengthened glass.

19. The transparent screen according to claim 1 , wherein the screen sheet of the screen main body includes a base material layer such that the irregular layer is formed on the base material layer.

20. A method of manufacturing a transparent screen, comprising:
heating and bending a flat front transparent plate comprising a glass plate such that a front transparent plate comprising the glass plate and having a curved shape in a cross section orthogonal to an outer edge portion of the front transparent plate is formed;
heating and bending a flat rear transparent plate comprising a glass plate such that a rear transparent plate comprising the glass plate and having a curved shape in a cross section orthogonal to an outer edge portion of the rear transparent plate is formed; and
laminating the front and rear transparent plates and a screen main body comprising a plurality of adhesion layers and a screen sheet interposed between the adhesion layers such that the adhesion layers are adhering the screen main body to the front and rear transparent plates respectively, that the screen main body is interposed between the front and rear transparent plates and that the front and rear transparent plates and the screen main body have a curved shape in a cross section orthogonal to the outer edge portions of the front and rear transparent plates,
wherein the screen main body is configured to display a video image projected from a front side of the screen main body to a user on the front side of the screen main body and enable a rear background to be visually recognized through the screen main body by the user, the screen sheet of the screen main body includes an irregular layer having an irregular surface pattern, a reflection film formed along the irregular surface pattern of the irregular layer such that the reflection film is configured to reflect a part of light incident on the front side of the screen main body and transmit a part of light incident from a rear side of the screen main body to the front side of the front transparent plate, and a covering layer covering the irregular surface pattern of the reflection film, and the flat front and rear plates are formed such that a length of a center line in a

Assignees

• Agc Inc

Inventors

• Shiraishi Ryuichi
• Kaida Yuriko
• Iguchi Yoshinori
• Tao Yukihiro

Classifications

• G02B2207/123

  Optical louvre elements, e.g. for directional light blocking · CPC title

• G02B5/09

  Multifaceted or polygonal mirrors {, e.g. polygonal scanning mirrors; Fresnel mirrors} · CPC title

• G02B5/0221

  the surface having an irregular structure (G02B5/0226 takes precedence) · CPC title

• G03B21/625

  Lenticular translucent screens · CPC title

• G03B21/62 Primary

  Translucent screens · CPC title