| US 7,579,775 B2 | ||
| Electroluminescence display device with improved external light coupling efficiency and method of manufacturing the same | ||
| Young-Woo Song, Suwon-si (Korea, Republic of); Yoon-Chang Kim, Suwon-si (Korea, Republic of); Jong-Seok Oh, Suwon-si (Korea, Republic of); Sang-Hwan Cho, Suwon-si (Korea, Republic of); Ji-Hoon Ahn, Suwon-si (Korea, Republic of); Joon-Gu Lee, Suwon-si (Korea, Republic of); So-Young Lee, Suwon-si (Korea, Republic of); and Jae-Heung Ha, Suwon-si (Korea, Republic of) | ||
| Assigned to Samsung Mobile Display Co., Ltd., Yongin (Korea, Republic of) | ||
| Filed on Dec. 08, 2005, as Appl. No. 11/297,702. | ||
| Claims priority of application No. 10-2004-0104651 (KR), filed on Dec. 11, 2004; and application No. 10-2005-0013889 (KR), filed on Feb. 19, 2005. | ||
| Prior Publication US 2006/0125388 A1, Jun. 15, 2006 | ||
| Int. Cl. H01J 1/62 (2006.01); H05B 33/00 (2006.01) | ||
| U.S. Cl. 313—506 [313/112] | 34 Claims |
| 1. An electroluminescence (EL) display device, comprising:
a substrate;
a first electrode formed above the substrate;
a second electrode formed above the first electrode and facing the first electrode;
a first intermediate layer including a luminescence layer and disposed between the first and second electrodes, the luminescence
layer emitting light of a single color throughout sub-pixel regions;
a color converting layer disposed on top of the second electrode; and
a diffraction grating disposed between the second electrode and the color converting layer,
wherein the color converting layer converts light of the single color emitted from the luminescence layer and passing through
the diffraction grating into various colors.
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