| 摘要 |
PROBLEM TO BE SOLVED: To obtain a colorless half-transmitting film having a high transmittance and a reflectance by forming a transparent layer having a high refractive index on a transparent film. SOLUTION: This half-transmitting reflection member for a liquid crystal display element has >=30% reflectance and >=40% transmittance for 550nm wavelength. This member is obtd. by alternately depositing transparent high refractive index layers 20 and transparent low refractive index layers 30 on one surface of a transparent polymer film 40. The transparent high refractive index layer 20 consists of a transparent material having a higher refractive index than that of the transparent polymer film 40 as the base body. The transparent low refractive index layer 30 consists of a transparent material having a lower refractive index than that of the transparent polymer film 40 as the base body. As for the transparent high refractive index layer 20, a transparent material having high refractive index such as titanium oxide, oxide of indium and tin and zinc oxide can be used. As for the transparent low refractive index layer 30, silicon oxide or magnesium fluoride is used. |
