ANISOTROPIC DYE LAYER, COORDINATION POLYMER FOR ANISOTROPIC DYE LAYER AND POLARIZATION ELEMENT, AND POLARIZATION CONTROL FILM, POLARIZATION CONTROL ELEMENT, MULTI-LAYER POLARIZATION CONTROL ELEMENT, ELLIPSE POLARIZATION PLATE, LIGHT EMISSION ELEMENT, AND METHOD FOR CONTROLLING POLARIZATION PROPERTIES EMPLOYING THE ANISOTROPIC DYE LAYER

• US 20130235552A1
• Filed: 04/26/2013
• Published: 09/12/2013
• Est. Priority Date: 12/08/2008
• Status: Active Grant

• Current Assignee: Konica Minolta OPTO Incorporated (Konica Minolta Inc.)
• Original Assignee: Konica Minolta OPTO Incorporated (Konica Minolta Inc.)
• Inventors: NAKAZAWA, Yukihito
• Granted Patent: US 8,824,048 B2
• Time in Patent Office: Days
• US Class Current: 362/19
• CPC Class Codes: F21V 9/14 for producing polarised light
• CPC Class Codes: G02B 5/30 Polarising elements light-modulating devices with active elements G02F1/00
• CPC Class Codes: G02F 1/0136 for the control of polarisation, e.g. state of polarisation [SOP] control, polarisation scrambling, TE-TM mode conversion or separation G02F1/0353 takes precedence
• CPC Class Codes: G02F 2202/04 dye

Abstract

An anisotropic dye layer containing a coordination polymer is disclosed. The a polarization control film containing an oriented dichroic dye in which light absorption spectrum of a molecule is reversibly changed by charge passing are disclosed.

Claims

1. A polarization control film containing an oriented dichroic dye in which light absorption spectrum of a molecule is reversibly changed by receiving and releasing charge.

2. The polarization control film of claim 1, wherein the polarization control film is a charge control polarization control film, in which the control of the polarization properties is carried out by receiving and releasing charge.

3. The polarization control film of claim 1, wherein the receiving and releasing charge is an oxidation-reduction reaction.

4. The polarization control film of claim 1, wherein the orientation is in-plane uniaxial orientation.

5. The polarization control element, wherein the polarization control film has the polarization control film of claim 1 and a charge supply means.

6. The polarization control element of claim 5, wherein the charge supply means has an electrolyte layer and an electrode.

7. The polarization control element of claim 5, wherein the charge supplying means has a constitution by which supplying of the charge from the charge supplying means can be locally controlled.

8. A method for controlling polarization properties, comprising step of:

controlling the polarization properties by using the polarization control element of claim 5.

9. A multi-layer polarization control element, comprising plural layers each composed of the polarization element of claim 5, wherein the orientation directions of a dichroic dye contained in each of the polarization control film of the polarization controlling elements are different from each other.

10. A method for controlling polarization properties comprising the steps of controlling the polarization properties by using the multi-layer polarization control element of claim 9.

11. An ellipse polarization plate comprising a retardation plate and the polarization control element of claim 5.

12. An ellipse polarization plate comprising a retardation plate and the multi-layer polarization control element of claim 9.

13. A light emission element comprising the polarization control element of claim 5.

14. A light emission element comprising the multi-layer polarization element of claim 9.

15. A light emission element comprising the ellipse polarization plate of claim 11.

16. The light emission element of claim 13, wherein the light emission element is a displaying element.

17. The light emission element of claim 13 wherein the light emission element is a lighting element.

18. The light emission element of claim 16, wherein the light emission element includes an organic electroluminescent element.

19. A method for controlling polarization properties, comprising the steps of:

changing the polarization properties reversibly by using a polarization control element which has a polarization control film incorporating an oriented dichroic dyes in which light absorption spectrum of the molecule is changed by receiving and releasing charge and a charge supply means,

wherein the step of changing the polarization properties includes the step of;

controlling charge supply from charge supply means to the dichroic dyes is controlled.

20. The method for controlling polarization properties of claim 19, wherein a method for controlling the charge supply to the dichroic dyes includes the steps of controlling a voltage so as to reversibly change states between a state in which the polarization control film has polarization properties in a colored state and a state in which the above polarization control film has no polarization property in a non-colored state.

21. A method for controlling polarization properties comprising the steps of:

changing the polarization properties reversibly by using a retardation plate, an ellipse polarization plate having a polarization control film containing the oriented dichroic dyes, light absorption spectrum of the molecule of which is changed by receiving and releasing charge, and a charge supplying device,

wherein the steps of polarization properties includes the step of;

controlling the charge supplied from the supplying device to the dichroic dye so as to change polarization properties of the polarization plate.