Recording medium
First Claim
1. A recording element which comprises a recording layer containing:
- a first charge-generating material adapted to generate a first electric charge by irradiation with light;
a first charge transporting material for transporting said first electric charge;
a charge-capturing material for capturing said first electric charge; and
material having an electro-optical effect;
wherein said recording element does not comprise means for applying an external electric field.
1 Assignment
0 Petitions
Accused Products
Abstract
A recording element which comprises a recording layer containing, a first charge-generating material adapted to generate a first electric charge by a supply of external energy, a first charge-transporting material for transporting the first electric charge, a charge-capturing material for capturing the first electric charge, and a material having an electro-optical effect, wherein a change in optical properties of the recording layer is caused only through an inner electric field to be generated by a delivery of electric charge between the first charge-generating material generating electric charge and the charge-capturing material capturing the electric charge.
-
Citations
22 Claims
-
1. A recording element which comprises a recording layer containing:
-
a first charge-generating material adapted to generate a first electric charge by irradiation with light;
a first charge transporting material for transporting said first electric charge;
a charge-capturing material for capturing said first electric charge; and
material having an electro-optical effect;wherein said recording element does not comprise means for applying an external electric field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A recording element which comprises a recording layer containing;
- a compound which can be ionized or has a capability of increasing dipole moment by the application of external energy;
a charge-generating material generating an electric charge;
a charge-transporting material transporting said electric charge; and
a charge-capturing material for capturing said electric charge;wherein said recording element does not comprise means for applying an external electric field. - View Dependent Claims (11, 12)
- a compound which can be ionized or has a capability of increasing dipole moment by the application of external energy;
-
13. A drift mobility modulating element which comprises a recording layer containing;
- a charge-generating material adapted to generate an electric charge by irradiation with light;
a charge-capturing material for capturing said electric charge; and
a charge transporting material for transporting said electric charge;wherein a change in conductivity of said recording layer is caused by changing a drift mobility of said charge-transporting material according to an inner electric field to be generated by delivery of electric charge between said charge-generating material generating electric charge and said charge-capturing material capturing said electric charge; and wherein said drift mobility modulating element does not comprise means for applying an external electric field. - View Dependent Claims (14)
- a charge-generating material adapted to generate an electric charge by irradiation with light;
-
15. A recording element which comprises a recording layer containing;
- a first charge-generating material adapted to generate a first electric charge by irradiation with light;
a first charge-transporting material for transporting said first electric charge;
a charge-capturing material for capturing said first electric charge; and
a material having an electro-optical effect;wherein said recording element does not comprise means for applying an external electric field, and a dipole moment of at least one of said materials is 3.5 debye or more.
- a first charge-generating material adapted to generate a first electric charge by irradiation with light;
-
16. A recording element which comprises a recording layer containing;
- a first charge-generating material adapted to generate a first electric charge by irradiation with light;
a second charge-generating material adapted to generate a second electric charge having an opposite polarity from that of said first electric charge;
a first charge transporting material for transporting said first electric charge;
a charge-capturing material for capturing said first electric charge; and
material having an electro-optical effect;wherein said recording element does not comprise means for applying an external electric field. - View Dependent Claims (17, 18, 19, 20)
- a first charge-generating material adapted to generate a first electric charge by irradiation with light;
-
21. A method of recording information, wherein the recording of information is carried out through a diffraction grating to be formed by irradiating a pair of coherent lights onto the recording element,
wherein said recording element comprises: -
a recording layer comprising;
a first charge-generating material adapted to generate a first electric charge by irradiation with light;
a second charge-generating material adapted to generate a second electric charge having an opposite polarity from that of said first electric charge;
a first charge transporting material for transporting said first electric charge;
a charge-capturing material for capturing said first electric charge; and
material having an electro-optical effect;wherein no external electric field is applied to said recording layer.
-
-
22. A method of erasing information, wherein the erasing of information is carried out through an elimination of a diffraction grating that can be effected by irradiating light onto the recording element,
wherein said recording element comprises: -
a recording layer comprising;
a first charge-generating material adapted to generate a first electric charge by irradiation with light;
a second charge-generating material adapted to generate a second electric charge having an opposite polarity from that of said first electric charge;
a first charge transporting material for transporting said first electric charge;
a charge-capturing material for capturing said first electric charge; and
material having an electro-optical effect;wherein no external electric field is applied to said recording layer.
-
Specification