Illumination device

Patent metadata

Field	Value
Publication number	US-9772096-B2
Application number	US-201314418375-A
Country	US
Kind code	B2
Filing date	Sep 4, 2013
Priority date	Sep 5, 2012
Publication date	Sep 26, 2017
Grant date	Sep 26, 2017

Abstract

This illumination device includes an organic EL illumination panel installed in a baggage rack or the like in a fuselage of an aircraft, and a panel driving circuit that drives the organic EL illumination panel and is installed in a different place apart from the organic EL illumination panel in the fuselage to drive the organic EL illumination panel. The organic EL illumination panel includes a plurality of light emitting units including at least a light emitting layer, and a charge generation layer arranged between the plurality of light emitting units to thereby form a multi-photoemission structure, and has a thickness of 5 mm or less in a stacking direction.

First claim

The invention claimed is:

1. An illumination device for an inside of a fuselage of an aircraft, the illumination device comprising:
an organic EL illumination panel adapted to be installed in an aircraft member in the fuselage; and
a panel driving circuit that drives the organic EL illumination panel and is installed in a different place apart from the organic EL illumination panel in the fuselage to drive the organic EL illumination panel,
wherein the organic EL illumination panel includes
a plurality of light emitting units including at least a light emitting layer including an organic material;
a charge generation layer arranged between the plurality of light emitting units;
a pair of electrodes that include a positive electrode and a negative electrode, and that supply power from the panel driving circuit to a stacked body including the plurality of light emitting units and the charge generation layer;
a transparent substrate arranged on a side of the positive electrode, the side of the positive electrode being opposite to the negative electrode;
a sealing substrate arranged on a side of the negative electrode, the side of the negative electrode being opposite to the positive electrode; and
a sealing member arranged on the outer periphery of the stacked body and the pair of electrodes, arranged between the transparent substrate and the sealing substrate, and bonding the transparent substrate and the sealing substrate, wherein
a gap is secured between the sealing substrate and the negative electrode,
the gap is filled with a filler selected from the group consisting of a moisture absorbent, an inert gas, and silicone oil, and
the organic EL illumination panel has a thickness of 5 mm or less in a stacking direction.

2. A fuselage for an aircraft comprising:
an aircraft member arranged inside the fuselage; and
the illumination device according to claim 1 ,
wherein the illumination device is installed in the aircraft member.

3. The fuselage according to claim 2 , wherein:
the aircraft member includes a seat and a baggage rack arranged above the seat, and,
the baggage rack has a curved surface; and

the organic EL illumination panel of the illumination device is installed on a floor side of the baggage rack along the curved surface so that the transparent substrate is directed to the floor side, and has a luminance of 1000 cd/m 2 or more.

4. The fuselage according to claim 2 , wherein:
the aircraft member is a baggage rack that includes a rack body having an opening formed therein, and a cover closing the opening of the rack body;
an inner side in the cover of the baggage rack has a curved surface; and
the organic EL illumination panel of the illumination device is installed on the inner side in the cover of the baggage rack along the curved surface so that the transparent substrate is directed to the internal side, and has a luminance of 300 cd/m 2 or more.

5. The fuselage according to claim 2 , wherein:
the aircraft member is a plurality of seats that is formed and arranged in a cascade in the fuselage, the plurality of seats having a backrest portion;
the illumination device further includes:
a panel connector that attaches the organic EL illumination panel to the backrest portion to be capable of being opened and closed between a closed state in which the transparent substrate of the organic EL illumination panel faces a back surface of the backrest portion and an opened state in which the transparent substrate of the organic EL illumination panel forms an angle with respect to the back surface; and
a light shielding plate attached at both ends of the organic EL illumination panel in a direction in which a virtual axis parallel to a floor surface extends to be opened and closed between a closed state in which the light shielding plate faces the transparent substrate and an opened state in which the light shielding plate forms an angle with respect to the transparent substrate;
the panel connector swingably attaches the organic EL illumination panel to the backrest portion with respect to the virtual axis; and

the organic EL illumination panel has a luminance of 2000 cd/m 2 or more.

6. The fuselage according to claim 5 , wherein the illumination device further includes:
a switch that drives the organic EL illumination panel when the organic EL illumination panel is changed from the closed state to the opened state, and stops driving of the organic EL illumination panel when the organic EL illumination panel is changed from the opened state to the closed state.

7. The fuselage according to claim 5 , wherein
the backrest portion has a curved surface, and
the organic EL illumination panel is provided along the curved surface of the backrest portion on the curved surface.

8. The fuselage according to claim 2 , wherein:
the aircraft member is a shade that shades light from a window to an inside of the aircraft and that is arranged on an inner side of the window in the fuselage; and
at least one organic EL illumination panel of the illumination device is installed in the shade, and the organic EL illumination panel is installed on an inner side of the shade so that the transparent substrate is directed to the inside of the aircraft, and has a luminance of 300 cd/m 2 or more.

9. The fuselage according to claim 8 , wherein
the shade or the inner window frame member has a curved surface, and
the organic EL illumination panel is provided along the curved surface of the shade or the inner window frame member on the curved surface.

10. The fuselage according to claim 2 , wherein:
the aircraft member is an inner window frame member that covers a vicinity of a window in an inner side of the fuselage, and
the organic EL illumination panel of the illumination device is installed on an upper portion of the inner window frame member in the inner side of the fuselage so that the transparent substrate is directed to the inner side, and has a luminance of 300 cd/m 2 or more.

11. The fuselage according to claim 10 , wherein
the shade or the inner window frame member has a curved surface, and
the organic EL illumination panel is provided along the curved surface of the shade or the inner window frame member on the curved surface.

12. The illumination device according to claim 1 ,
wherein the organic EL illumination panel includes a light storing layer including a light storing material.

13. The illumination device according to claim 12 ,
wherein the organic EL illumination panel includes a heat radiation plate arranged on the side of the negative electrode, the side of the negative electrode being opposite to the positive electrode,
the pair of electrodes are both transparent electrodes, and
the light storing layer is arranged between the negative electrode and the heat radiation plate.

14. An illumination device arranged in a fuselage of an aircraft, the illumination device comprising:
an organic EL illumination panel installed in an aircraft member in the fuselage; and
a panel driving circuit that drives the organic EL illumination panel and is installed in a different place apart from the organic EL illumination panel in the fuselage to drive the organic EL illumination panel,
wherein the organic EL illumination panel includes
a plurality of light emitting units including at least a light emitting layer including an organic material;
a charge generation layer arranged between the plurality of light emitting units;
a pair of electrodes that supply power from the panel driving circuit to a stacked body including the plurality of light emitting units and the charge generation

Assignees

• Mitsubishi Heavy Ind Ltd
• Lumiotec Inc

Inventors

• Aruga Hiroyasu
• KATSUME Tadashi

Classifications

• B60Q3/43 Primary

  General lighting · CPC title

• B60Q3/745

  using lighting panels or mats, e.g. electro-luminescent panels, LED mats · CPC title

• B64D11/00 Primary

  Passenger or crew accommodation; Flight-deck installations not otherwise provided for · CPC title

• B64D2011/0038

  Illumination systems for cabins as a whole · CPC title

• F21V23/06 Primary

  the elements being coupling devices {, e.g. connectors} · CPC title