| US 7,562,994 B2 | ||
| Lighting apparatus and a display apparatus therewith | ||
| Yoshiaki Sakamoto, Kawasaki (Japan); Toshiro Takahashi, Kawasaki (Japan); and Masaya Nakayama, Kawasaki (Japan) | ||
| Assigned to Fuji Photo Film Co., Ltd., Kanagawa (Japan) | ||
| Filed on Jun. 21, 2005, as Appl. No. 11/156,572. | ||
| Claims priority of application No. 2005-073981 (JP), filed on Mar. 15, 2005. | ||
| Prior Publication US 2006/0209225 A1, Sep. 21, 2006 | ||
| Int. Cl. F21V 9/16 (2006.01) | ||
| U.S. Cl. 362—84 [349/69; 313/498; 313/504; 313/506; 313/503; 313/502] | 15 Claims |
| 1. A lighting apparatus for irradiating a first display and a second display having a first formation range and a second formation
range, respectively, wherein the first formation range is larger than the second formation range, comprising:
a first light-transmitting electrode layer, a second light-transmitting electrode layer, and a luminous layer provided between
the first and the second light-transmitting electrode layers, all substantially the size of the first formation range;
the luminous layer having a single electroluminescent material and extending over the first formation range;
at least a first conductive member and a second conductive member; and
a switching unit that provides a potential between the first and second conductive member and the second light-transmitting
electrode layer so as to irradiate the first display and provides a potential between the second conductive member and the
second light-transmitting electrode layer so as to irradiate the second display.
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