发明名称 |
Thin film electroluminescent device |
摘要 |
A light emitting phosphor material for an alternating current thin-film electroluminescent device that includes the phosphor material sandwiched between a pair of dielectric layers. The phosphor material comprises a first layer having a thickness greater than 600 nanometers wherein the first phosphor material has a luminance output at 25 degrees C. and a decreased luminance output at 50 degrees C. greater than 20 percent of the luminance output at 25 degrees C. The phosphor material comprises a second phosphor layer overlaying the first phosphor layer having a thickness less than 400 nanometers wherein the decreased luminance output at 50 degrees C. is less than 20 percent with the second phosphor layer.
|
申请公布号 |
US6451460(B1) |
申请公布日期 |
2002.09.17 |
申请号 |
US20000658820 |
申请日期 |
2000.09.08 |
申请人 |
PLANNER SYSTEMS, INC. |
发明人 |
SUN SEY-SHING;BOWEN MICHAEL S. |
分类号 |
H05B33/14;(IPC1-7):H05B33/00 |
主分类号 |
H05B33/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|