| US 7,482,747 B2 | ||
| Flexible EL device | ||
| Dong Hyuk Shin, Seoul (Korea, Republic of); and Kwang Hyuk Bae, Daejeon (Korea, Republic of) | ||
| Assigned to ELK Corporation, Yuseong-Gu (Korea, Republic of) | ||
| Appl. No. 11/628,642 PCT Filed Mar. 14, 2005, PCT No. PCT/KR2005/000721 § 371(c)(1), (2), (4) Date Dec. 06, 2006, PCT Pub. No. WO2005/122643, PCT Pub. Date Dec. 22, 2005. |
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| Claims priority of application No. 10-2004-0043546 (KR), filed on Jun. 14, 2004. | ||
| Prior Publication US 2008/0012483 A1, Jan. 17, 2008 | ||
| Int. Cl. H05B 33/00 (2006.01) | ||
| U.S. Cl. 313—506 [313/504; 428/917] | 10 Claims |
| 1. A flexible EL device comprising:
a substrate made of highly polymerized synthetic rubber, polyurethane, or silicon rubber;
a conductive layer formed on the substrate;
a dielectric layer formed on the conductive layer;
a phosphor layer formed on the dielectric layer, the phosphor layer being composed of ZnS powder and a binder having a dielectric
constant higher than that of the ZnS powder:
a transparent conductive layer formed on the phosphor layer; and
a polymer protection layer formed on the transparent conductive layer.
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