JP2007102203A5

JP2007102203A5 -

Info

Publication number: JP2007102203A5
Application number: JP2006240440A
Authority: JP
Filing date: 2006-09-05
Publication date: 2009-08-27
Anticipated expiration: 2026-09-05

Claims

In the sheet-like authenticity display body which is made to be able to judge the authenticity by observing the reflected light,
A reflective layer having a cholesteric regular liquid crystal structure and including a reflective part that reflects specific light;
It consists of a volume hologram and has a diffraction layer that diffracts specific light ,
The intrinsic display body , wherein the wavelength region of the specific light reflected by the reflective layer and the wavelength region of the specific light diffracted by the diffraction layer overlap at least in part. .

In the sheet-like authenticity display body which is made to be able to judge the authenticity by observing the reflected light,
A reflective layer having a cholesteric regular liquid crystal structure and including a reflective part that reflects specific light;
It consists of a volume hologram and has a diffraction layer that diffracts specific light ,
A wavelength region that has a light quantity more than half of the maximum light quantity in the light quantity distribution with respect to the wavelength of the light reflected by the reflective layer; and a light quantity distribution of the light quantity distribution with respect to the wavelength of the light diffracted by the diffraction layer One of the wavelength regions that have a light amount and the other is included in the other .

In the sheet-like authenticity display body which is made to be able to judge the authenticity by observing the reflected light,
A reflective layer having a cholesteric regular liquid crystal structure and including a reflective part that reflects specific light;
It consists of a volume hologram and has a diffraction layer that diffracts specific light ,
One of the wavelength range of the specific light reflected by the reflection layer and the wavelength range of the specific light diffracted by the diffraction layer is included in the other Display body.

The wavelength region that has a light quantity more than half of the maximum light quantity in the light quantity distribution with respect to the wavelength of light reflected by the reflective layer is more than half of the maximum light quantity in the light quantity distribution with respect to the wavelength of light diffracted by the diffraction layer. The authenticity display body according to claim 1, wherein the authenticity display body is out of a wavelength region where the light amount is obtained.

In the sheet-like authenticity display body which is made to be able to judge the authenticity by observing the reflected light,
A reflective layer having a cholesteric regular liquid crystal structure and including a reflective part that reflects specific light;
It consists of a volume hologram and has a diffraction layer that diffracts specific light ,
The wavelength region that has a light quantity more than half of the maximum light quantity in the light quantity distribution with respect to the wavelength of light reflected by the reflective layer is more than half of the maximum light quantity in the light quantity distribution with respect to the wavelength of light diffracted by the diffraction layer. An authentic display body characterized by being deviated from a wavelength region in which a light amount is obtained .

In the sheet-like authenticity display body which is made to be able to judge the authenticity by observing the reflected light,
A reflective layer having a cholesteric regular liquid crystal structure and including a reflective part that reflects specific light;
It consists of a volume hologram and has a diffraction layer that diffracts specific light ,
The authenticity display body , wherein the wavelength region of the specific light reflected by the reflective layer deviates from the wavelength region of the specific light diffracted by the diffraction layer .

The wavelength having the maximum light amount in the light amount distribution with respect to the wavelength of the light reflected by the reflective layer is longer than the wavelength having the maximum light amount in the light amount distribution with respect to the wavelength of the light diffracted by the diffraction layer. The authenticity display body according to any one of claims 1 to 6 , wherein the authenticity display body is.

The wavelength having the maximum light amount in the light amount distribution with respect to the wavelength of the light reflected by the reflection layer is shorter than the wavelength having the maximum light amount in the light amount distribution with respect to the wavelength of the light diffracted by the diffraction layer. The authenticity display body according to any one of claims 1 to 6 , wherein the authenticity display body is.

The authenticity display body according to any one of claims 1 to 8, wherein the reflection portion of the reflection layer is formed so as to overlap only a part of the diffraction layer.

The authentic display body according to any one of claims 1 to 9, wherein the cholesteric regular structure of the reflective portion is in a planar alignment state.

The authenticity display body according to any one of claims 1 to 10, wherein the reflection layer further includes a transmission portion that transmits incident light.

The authenticity display body according to claim 11, wherein the reflection layer includes a plurality of reflection parts and a plurality of transmission parts arranged side by side.

The authenticity display body according to any one of claims 1 to 12, wherein only a part of the reflection portion is in a planar alignment state.

14. The apparatus according to claim 1, further comprising an adhesive layer that is disposed on the back surface side opposite to the observation surface side than the reflective layer and the diffraction layer and is capable of being applied to an object. The authenticity display body as described in any one of Claims.

The authenticity display body according to claim 14, further comprising a peelable peeling member laminated on the back surface side of the adhesive layer.

The authentic display body according to claim 1, wherein the diffraction layer is made of a reflection type volume hologram.