White light emitting diode and backlight unit

The utility model provides a white light emitting diode and backlight unit, be in including the blue optical chip of an at least LED or purple optical chip, glimmering light conversion layer and setting the optics diaphragm on glimmering light conversion layer's surface, glimmering light conversion layer include silica gel the dispersion is provided with green fluorescent powder, red phosphor in the silica gel. Through setting up the optics diaphragm, the blue light exciting light only sees through the optics diaphragm in specific angle, and other angles are reflected by the optics diaphragm,increase the route of blue light in the glimmering light conversion layer of LED, and green fluorescent powder and red phosphor are excited many times to improve the light -emitting of green glow andruddiness, make the color dot reach the requirement of backlight. 本实用新型提供种白光发光二极管及背光模组，包括至少LED蓝光芯片或紫光芯片、荧光转换层及设置在所述荧光转换层的表面的光学膜片；所述的荧光转换层包括硅胶，在所述硅胶内分散设置有绿色荧光粉、红色荧光粉。通过设置光学膜片，蓝光激发光仅在特定的角度透过光学膜片，其它角度被光学膜片反射，增加蓝光在LED荧光转换层中的路径，绿色荧