| US 7,541,097 B2 | ||
| Organic electroluminescent device and method for fabricating the same | ||
| Jeong Dae Seo, Gyeonggi-do (Korea, Republic of); Hee Jung Kim, Seoul (Korea, Republic of); Kyung Hoon Lee, Seoul (Korea, Republic of); Hyoung Yun Oh, Seoul (Korea, Republic of); Myung Seop Kim, Seoul (Korea, Republic of); and Chun Gun Park, Seoul (Korea, Republic of) | ||
| Assigned to LG Display Co., Ltd., Seoul (Korea, Republic of) | ||
| Filed on Feb. 18, 2004, as Appl. No. 10/779,874. | ||
| Claims priority of application No. 10-2003-10394 (KR), filed on Feb. 19, 2003. | ||
| Prior Publication US 2004/0161632 A1, Aug. 19, 2004 | ||
| Int. Cl. H01L 51/54 (2006.01); H05B 33/14 (2006.01); H01L 29/20 (2006.01) | ||
| U.S. Cl. 428—690 [428/917; 313/504; 313/506; 257/89] | 15 Claims |
| 1. An organic electroluminescent device, comprising:
a substrate;
a first electrode formed on the substrate;
an emission layer formed over the first electrode, the emission layer comprising a green emission layer formed in a first
emission area, a red emission layer formed in a second emission area, and a blue emission layer formed in a third emission
area;
a hole blocking layer formed over the green, red, and blue emission layers, the hole blocking layer being formed of substantially
a same substance as that of the blue emission layer; and
a second electrode formed over the hole blocking layer,
wherein the green, red, and blue emission layers are substantially coplanar layers, and
wherein the hole blocking layer is formed of any one of a plurality of substances listed below:
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