One-way transparent display systems

• US 7,854,513 B2
• Filed: 03/03/2006
• Issued: 12/21/2010
• Est. Priority Date: 03/03/2006
• Status: Expired due to Fees

• Current Assignee: Cang V. Quach
• Original Assignee: Cang V. Quach
• Inventors: Quach, Cang V.
• Primary Examiner(s): Epps; Georgia Y
• Assistant Examiner(s): Cruz; Magda
• Application Number:
  US11/367,687
• Publication Number:
  US 20070206156A1
• Time in Patent Office: 1,754 Days
• Field of Search: 353/20, 353/84, 359/443, 359/483, 359/453, 359/485, 359/459, 359/489, 359/460, 359/490, 349/80, 349/96, 349/194, 257/40, 313/504, 362/612
• US Class Current: 353/20
• CPC Class Codes: G03B 21/604 Polarised screens
• CPC Class Codes: G03B 21/62 Translucent screens
• CPC Class Codes: H04N 5/74 Projection arrangements for image reproduction, e.g. using eidophor
• CPC Class Codes: H10K 2102/3031 Two-side emission, e.g. transparent OLEDs [TOLED]
• CPC Class Codes: H10K 50/868 Arrangements for polarized light emission H10K50/86 takes precedence
• CPC Class Codes: H10K 59/8793 Arrangements for polarized light emission H10K59/8791 takes precedence

Abstract

A display system includes a projection screen and a projector. The projection screen includes a retarder plate between a polarizer and a transparent screen. The projector projects an image through the polarizer and the retarder plate onto the transparent screen. The image is visible from a first side of the transparent screen but invisible from a second side of the transparent screen because any light passing twice through the retarder plate is blocked by the polarizer.

Claims

1. A one-way transparent display system, comprising:

a transparent display that actively emits a polarized image from first and second sides of the transparent display; and

a polarizer on the first side of the transparent display that substantially blocks any light from the polarized image that reaches the polarizer so the polarized image is substantially visible from only the second side of the transparent display;

wherein any person on the side of the polarizer sees through the display system without seeing the polarized image and any other person on the side of the transparent display sees the polarized image.

2. The system of claim 1, wherein the polarizer is mounted on the first side of the transparent display.

3. The system of claim 1, wherein the polarizer comprises a polarizing film.

4. The system of claim 1, wherein the transparent display is a transparent organic light-emitting diode display and the polarizer comprises a polarizing film.

5. The system of claim 1, further comprising a one-way vision film between the transparent display and the polarizer, wherein the one-way vision film allows any person on the side of the polarizer to look through the display system but does not allow any other person on the side of the transparent display to look through the display system.

6. The system of claim 5, wherein the one-way vision film comprises a perforated film comprising a light side facing the transparent display and a dark side facing the polarizer.

7. A one-way transparent display system, comprising:

a transparent organic light-emitting diode display that actively emits a polarized image from first and second sides of the transparent organic light-emitting diode display; and

a polarizer on the first side of the transparent organic light-emitting diode display, the polarizer substantially blocks any light from the polarized image that reaches the polarizer so the polarized image is substantially visible only from the second side of the transparent organic light-emitting diode display;

wherein any person on the side of the polarizer sees through the display system without seeing the polarized image and any other person on the side of the transparent organic light-emitting diode display sees the polarized image.

8. A method for providing a one-way transparent display system, comprising:

actively emitting a polarized image from first and second sides of a transparent display; and

from the first side of the transparent display, blocking any light from the polarized image with a polarizer so the polarized image is substantially visible from only the second side of the transparent display;

wherein any person on the side of the polarizer sees through the display system without seeing the polarized image and any other person on the side of the transparent display sees the polarized image.

9. The method of claim 8, wherein the polarizer comprises a polarizing film.

10. The method of claim 8, wherein the transparent display is a transparent organic light-emitting diode display and the polarizer comprises a polarizing film.

11. The method of claim 8, further providing one-way vision by locating a one-way vision film between the transparent display and the polarizer, wherein the one-way vision film allows any person on the side of the polarizer to look through the display system but does not allow any other person on the side of the transparent display to look through the display system.

12. The method of claim 11, wherein the one-way vision film comprises a perforated film with a light side facing the transparent display and a dark side facing the polarizer.

13. A method for providing a one-way transparent display system, comprising:

actively emitting a polarized image from first and second sides of a transparent organic light emitting diode display; and

from the first side of the transparent organic light emitting diode display, blocking any light from the polarized image with a polarizer so the polarized image is substantially visible from only the second side of the transparent organic light emitting diode display;

wherein any person on the side of the polarizer sees through the display system without seeing the polarized image and any other person on the side of the transparent organic light-emitting diode display sees the polarized image.