公开(公告)号：US07872409B2

公开(公告)日：2011-01-18

申请号：US12022559

申请日：2008-01-30

申请人： Chih-lin Wang ,  Wu-sheng Chi

发明人： Chih-lin Wang ,  Wu-sheng Chi

IPC分类号： H05B33/00

CPC分类号： H01L33/08 ,  H01L33/502

摘要： A white light LED is disclosed. The white light LED includes a dual-wavelength chip and an optical thin film. The dual-wavelength chip generates a first wavelength light and a second wavelength light. The optical thin film is disposed above the dual-wavelength chip. The optical thin film can partially be a quantum well thin film. Therefore, the quantum well thin film can be excited by the first wavelength light and/or second wavelength light to generate a third wavelength light. The optical thin film further comprises a plurality of windows to let the first and second wavelength lights pass through. By predetermining a ratio of the quantum well thin film area and the window area that belong to the optical thin film, a lumen ratio of the first, the second, and the third wavelength lights can be adjusted to realize white lights of different color temperatures.

摘要翻译： 公开了一种白光LED。 白光LED包括双波长芯片和光学薄膜。 双波长芯片产生第一波长光和第二波长光。 光学薄膜设置在双波长芯片上方。 光学薄膜可以部分地是量子阱薄膜。 因此，量子阱薄膜可以被第一波长光和/或第二波长光激发以产生第三波长的光。 光学薄膜还包括多个窗口，以使第一和第二波长光通过。 通过预先确定属于光学薄膜的量子阱薄膜面积和窗口面积的比率，可以调节第一，第二和第三波长光的管腔比，以实现不同色温的白光。

公开(公告)号：US20090033204A1

公开(公告)日：2009-02-05

申请号：US12022559

申请日：2008-01-30

申请人： Chih-lin Wang ,  Wu-sheng Chi

发明人： Chih-lin Wang ,  Wu-sheng Chi

IPC分类号： H01J1/62 ,  H01J9/02

CPC分类号： H01L33/08 ,  H01L33/502

摘要： A white light LED is disclosed. The white light LED includes a dual-wavelength chip and an optical thin film. The dual-wavelength chip generates a first wavelength light and a second wavelength light. The optical thin film is disposed above the dual-wavelength chip. The optical thin film can partially be a quantum well thin film. Therefore, the quantum well thin film can be excited by the first wavelength light and/or second wavelength light to generate a third wavelength light. The optical thin film further comprises a plurality of windows to let the first and second wavelength lights pass through. By predetermining a ratio of the quantum well thin film area and the window area that belong to the optical thin film, a lumen ratio of the first, the second, and the third wavelength lights can be adjusted to realize white lights of different color temperatures.

摘要翻译： 公开了一种白光LED。 白光LED包括双波长芯片和光学薄膜。 双波长芯片产生第一波长光和第二波长光。 光学薄膜设置在双波长芯片上方。 光学薄膜可以部分地是量子阱薄膜。 因此，量子阱薄膜可以被第一波长光和/或第二波长光激发以产生第三波长的光。 光学薄膜还包括多个窗口，以使第一和第二波长光通过。 通过预先确定属于光学薄膜的量子阱薄膜面积和窗口面积的比率，可以调节第一，第二和第三波长光的管腔比，以实现不同色温的白光。