OPTICAL RECORDING DISPLAY MEDIUM AND RECORDING APPARATUS

• US 20100231829A1
• Filed: 08/13/2009
• Published: 09/16/2010
• Est. Priority Date: 03/10/2009
• Status: Active Grant

• Current Assignee: Fuji Xerox Company Limited (Xerox Holdings Corp.)
• Original Assignee: Fuji Xerox Company Limited (Xerox Holdings Corp.)
• Inventors: OKANO, Yasunori, HIRANO, Atsushi, HARADA, Haruo, URANO, Chisato, ARISAWA, Hiroshi, MORIKAWA, Takashi, GAN, Taijyu
• Granted Patent: US 8,334,949 B2
• Time in Patent Office: Days
• US Class Current: 349/78
• CPC Class Codes: G02F 1/135 Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied G02F1/133348 takes precedence

Abstract

An optical recording display medium comprises: a display layer whose display changes according to an applied voltage; a photoconductive layer that is provided opposing the display layer and changes a voltage applied to the display layer according to irradiated light; and a selective transmission layer that is provided on a light path to where light irradiated toward the photoconductive layer arrives at the photoconductive layer, and whose transmissivity with respect to the irradiated light increases as an intensity of the irradiated light increases.

Claims

1. An optical recording display medium comprising:

a display layer whose display changes according to an applied voltage;

a photoconductive layer that is provided opposing the display layer and changes a voltage applied to the display layer according to irradiated light; and

a selective transmission layer that is provided on a light path to where light irradiated toward the photoconductive layer arrives at the photoconductive layer, and whose transmissivity with respect to the irradiated light increases as an intensity of the irradiated light increases.

2. The optical recording display medium according to claim 1,

wherein the selective transmission layer includes a compound that exhibits multiphoton absorption properties.

3. The optical recording display medium according to claim 1,

wherein the selective transmission layer includes a photochromic compound.

4. The optical recording display medium according to claim 1,

wherein the selective transmission layer includes any of diarylethene, spiropryan, and spiroxazine.

5. The optical recording display medium according to claim 1,

wherein the selective transmission layer includes a compound whose transmissivity with respect to the irradiated light increases as the intensity of the irradiated light increases, and a medium that causes the compound to develop a color by applying a dipole field.

6. A recording apparatus comprising:

an irradiation unit that irradiates light toward the optical recording display medium, the optical recording display medium having;

a display layer whose display changes according to an applied voltage;

a photoconductive layer that is provided opposing the display layer and changes a voltage applied to the display layer according to irradiated light; and

a selective transmission layer that is provided on a light path to where light irradiated toward the photoconductive layer arrives at the photoconductive layer, and whose transmissivity with respect to the irradiated light increases as an intensity of the irradiated light increases;

a voltage application unit that applies a voltage to the optical recording display medium;

a controller that controls the irradiation unit and the voltage application unit according to image data received as input; and

a color developing unit that causes the selective transmission layer of the optical recording display medium to develop a color.

7. The recording apparatus according to claim 6,

wherein the color developing unit causes the selective transmission layer to develop a color by irradiating an electromagnetic wave whose wavelength is different from the light toward the selective transmission layer.

8. The recording apparatus according to claim 6,

wherein the selective transmission layer includes a compound that exhibits multiphoton absorption properties.

9. The recording apparatus according to claim 6,

wherein the selective transmission layer includes a photochromic compound.

10. The recording apparatus according to claim 6,

wherein the selective transmission layer includes any of diarylethene, spiropryan, and spiroxazine.

11. The recording apparatus according to claim 6,

wherein the selective transmission layer includes a compound whose transmissivity with respect to the irradiated light increases as the intensity of the irradiated light increases, and a medium that causes the compound to develop a color by applying a dipole field.