| 摘要 |
PROBLEM TO BE SOLVED: To provide a white color LED light source back light device which simplifies a process by disusing the hue control process applied to each sets after combining with a liquid crystal display element because of many variation of colors. SOLUTION: For the back light device 1 having a white color LED lamp 3 as a light source, a reflection treatment 4, absorbing an excessive part of spectrum out of the light emitted from the white color LED lamp 3, is applied to at least either one of a light guide plate 2 or a reflection plate 5 of the back light device 1. By the above, a hue control process applied to each liquid crystal display device after combining the white color LED source back light device with the liquid crystal display device in the past, is disused. |
