发明申请
US20190027646A1 Solid State Light Sheet Having Wide Support Substrate and Narrow Strips Enclosing LED Dies in Series
审中-公开
![Solid State Light Sheet Having Wide Support Substrate and Narrow Strips Enclosing LED Dies in Series](/abs-image/US/2019/01/24/US20190027646A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: Solid State Light Sheet Having Wide Support Substrate and Narrow Strips Enclosing LED Dies in Series
- 申请号:US15894796 申请日:2018-02-12
- 公开(公告)号:US20190027646A1 公开(公告)日:2019-01-24
- 发明人: Louis Lerman , Allan Brent York , Michael David Henry , Robert V. Steele , Brian D. Ogonowsky
- 申请人: Quarkstar LLC
- 主分类号: H01L33/08
- IPC分类号: H01L33/08 ; F21K9/64
摘要:
A solid state light sheet and method of fabricating the sheet are disclosed. In one embodiment, bare LED chips have top and bottom electrodes, where the bottom electrode is a large reflective electrode. The bottom electrodes of an array of LEDs (e.g., 500 LEDs) are bonded to an array of electrodes formed on a flexible bottom substrate. Conductive traces are formed on the bottom substrate connected to the electrodes. A transparent top substrate is then formed over the bottom substrate. Various ways to connect the LEDs in series are described along with many embodiments. In one method, the top substrate contains a conductor pattern that connects to LED electrodes and conductors on the bottom substrate.