| 摘要 |
Ultraviolet light, which has propagated through an optical waveguide, propagates in a direction changed by prisms and is emitted from a light-emitting surface to a liquid crystal display panel. The UV incident on the LCD panel is converted into visible light by color filter layers, that is, the visible light conversion layers. A fluorescent material contained in the color filter layers emits visible fluorescent light when UV is irradiated. The visible light is reflected by a reflective layer, is emitted from the LCD display panel, passes through the optical waveguide of a front light and a cover member, and is then viewed by a viewer. A part of the UV is reflected by the light-emitting surface of the optical waveguide or a surface of the LCD.
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