公开(公告)号：US20130221368A1

公开(公告)日：2013-08-29

申请号：US13737672

申请日：2013-01-09

Applicant: NTHDEGREE TECHNOLOGIES WORLDWIDE IN

Inventor： Bradley S. Oraw

IPC: H01L33/00

CPC classification number: H05B33/0857 ,  H01L24/24 ,  H01L24/82 ,  H01L27/15 ,  H01L33/0041 ,  H01L2224/24137 ,  H01L2224/32225 ,  H01L2224/73267 ,  H01L2924/10272 ,  H01L2924/1033 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/1301 ,  H01L2924/13033 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/13062 ,  H01L2924/13063 ,  H01L2924/13064 ,  H01L2924/13091 ,  H05B33/083 ,  H01L2924/00

Abstract: LED modules are disclosed having a control MOSFET, or other transistor, in series with an LED. In one embodiment, a MOSFET wafer is bonded to an LED wafer and singulated to form thousands of active 3-terminal LED modules with the same footprint as a single LED. Despite the different forward voltages of red, green, and blue LEDs, RGB modules may be connected in parallel and their control voltages staggered at 60 Hz or greater to generate a single perceived color, such as white. The RGB modules may be connected in a panel for general illumination or for a color display. A single dielectric layer in a panel may encapsulate all the RGB modules to form a compact and inexpensive panel. Various addressing techniques are described for both a color display and a lighting panel. Various circuits are described for reducing the sensitivity of the LED to variations in input voltage.

Abstract translation: 公开了具有与LED串联的控制MOSFET或其它晶体管的LED模块。 在一个实施例中，MOSFET晶片被结合到LED晶片并且被单片化以形成具有与单个LED相同的占空比的数千个有源3端子LED模块。 尽管红色，绿色和蓝色LED的正向电压不同，但是RGB模块可能并联连接，并且其控制电压以60Hz或更大的方式交错，以产生单个感知颜色，例如白色。 RGB模块可以连接在用于一般照明或彩色显示的面板中。 面板中的单个电介质层可以封装所有的RGB模块以形成紧凑且廉价的面板。 对于彩色显示器和照明面板都描述了各种寻址技术。 描述了各种电路，用于降低LED对输入电压变化的灵敏度。