One-Way Transparent Display Systems

• US 20110057212A1
• Filed: 11/12/2010
• Published: 03/10/2011
• Est. Priority Date: 03/03/2006
• Status: Active Grant

• Current Assignee: Cang V. Quach
• Original Assignee: Cang V. Quach
• Inventors: Quach, Cang V.
• Granted Patent: US 8,104,895 B2
• Time in Patent Office: Days
• US Class Current: 257/91
• 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 display system, comprising a pattern of nontransparent light-emitting pixels and transparent non-emitting pixels.

2. The system of claim 1, wherein the pattern comprises alternating lines of light-emitting pixels and transparent non-emitting pixels.

3. The system of claim 1, wherein the pattern comprises light-emitting pixels interspersed with transparent non-emitting pixels.

4. The system of claim 1, wherein the nontransparent light-emitting pixels comprises organic light-emitting diodes with opaque substrates and transparent cathodes and anodes.

5. The system of claim 1, wherein the transparent non-emitting pixels comprises dummy organic light-emitting diodes with transparent substrates and devoid of an emissive layer.