Optical recording display medium and recording apparatus

• US 8,334,949 B2
• Filed: 08/13/2009
• Issued: 12/18/2012
• Est. Priority Date: 03/10/2009
• Status: Expired due to Fees

• Current Assignee: Fuji Xerox Company Limited (Xerox Holdings Corp.)
• Original Assignee: Fuji Xerox Company Limited (Xerox Holdings Corp.)
• Inventors: Morikawa, Takashi, Arisawa, Hiroshi, Harada, Haruo, Urano, Chisato, Okano, Yasunori, Hirano, Atsushi, Gan, Taijyu
• Primary Examiner(s): Qi, Mike
• Application Number:
  US12/540,675
• Publication Number:
  US 20100231829A1
• Time in Patent Office: 1,223 Days
• Field of Search: 349/78, 349/77, 349/80, 349/61
• US Class Current: 349/77
• 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 first display layer whose display changes according to an applied voltage;

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

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

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

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

wherein the selective transmission layer is provided on a light path to where light transmitted through the second display layer and the second photoconductive layer arrives at the first photoconductive layer.

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. The optical recording display medium according to claim 1, wherein the selective transmission layer is an insulant.

7. A recording apparatus comprising:

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

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

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

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

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

a second photoconductive layer that is provided opposing the second display layer and that changes a voltage applied to the second display layer according to irradiated light, wherein the selective transmission layer is provided on a light path to where light transmitted through the second display layer and the second photoconductive layer arrives at the first photoconductive layer;

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.

8. The recording apparatus according to claim 7,

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.

9. The recording apparatus according to claim 7,

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

10. The recording apparatus according to claim 7,

wherein the selective transmission layer includes a photochromic compound.

11. The recording apparatus according to claim 7,

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

12. The recording apparatus according to claim 7,

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.

13. The recording apparatus according to claim 7, wherein the selective transmission layer is an insulant.