DISPLAY DEVICE

• US 20180275503A1
• Filed: 02/23/2018
• Published: 09/27/2018
• Est. Priority Date: 03/24/2017
• Status: Active Grant

• Current Assignee: Fujifilm Business Innovation Corp. (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Xerox Company Limited (Xerox Holdings Corp.)
• Inventors: ONO, Masafumi, MATSUYUKI, Tomotaka, HIROSE, Sayaka, TAKEUCHI, Yuri
• Granted Patent: US 10,642,144 B2
• Time in Patent Office: Days
• CPC Class Codes: G03B 17/54 with projector
• CPC Class Codes: G03B 21/10 Projectors with built-in or built-on screen
• CPC Class Codes: G03B 21/62 Translucent screens

Abstract

A display device includes a screen, first and second projectors, and a controller. The screen has first and second surfaces. The first projector projects a first horizontally non-inverted image as viewed from the first surface. The second projector projects a second horizontally non-inverted image as viewed from the second surface. The controller controls switching of an operation between the first and second projectors.

Claims

1. A display device comprising:

a screen having first and second surfaces;

a first projector that projects a first horizontally non-inverted image as viewed from the first surface;

a second projector that projects a second horizontally non-inverted image as viewed from the second surface; and

a controller that controls switching of an operation between the first and second projectors.

2. The display device according to claim 1, wherein the first and second projectors are rear projectors.

3. The display device according to claim 2, wherein, at one timing, the controller turns ON the first projector and turns OFF the second projector so as to project the first horizontally non-inverted image on the first surface, and at another timing, the controller turns OFF the first projector and turns ON the second projector so as to project the second horizontally non-inverted image on the second surface.

4. The display device according to claim 1, wherein:

the first and second projectors form a single projector including a front projecting function and a rear projecting function; and

the controller controls switching of an operation between the front projecting function and the rear projecting function.

5. The display device according to claim 4, wherein, at one timing, the controller turns ON the front projecting function and turns OFF the rear projecting function so as to project the first horizontally non-inverted image on the first surface, and at another timing, the controller turns OFF the front projecting function and turns ON the rear projecting function so as to project the second horizontally non-inverted image on the second surface.

6. The display device according to claim 1, wherein the first and second projectors project an identical image as the first and second horizontally non-inverted images.

7. The display device according to claim 1, wherein the first and second projectors project different images as the first and second horizontally non-inverted images.

8. The display device according to claim 1, wherein the screen is a transparent screen which is seen through.

9. The display device according to claim 1, wherein the screen is switchable between a state in which the screen is seen through and a state in which the screen is not seen through.