| 摘要 |
PROBLEM TO BE SOLVED: To obtain a light emission structure in which the efficiency of light emission of a fluorescence emission display unit is improved, further to facilitate changing display contents by combination of a light emission stack and a light source. SOLUTION: This structure includes an ultraviolet rays source, and light emission stacks (Q1, Q2) in which a fluorescence emitting layer (A) indicating fluorescence emission from an ultraviolet projection side, and an ultraviolet rays reflection layer (B) in which an ultraviolet reflection ratio in the whole wavelength range of 300 nm to 400 nm is ≥10% are laminated. COPYRIGHT: (C)2011,JPO&INPIT |
