| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of parts for electromagnetic wave shielding light- transmission window material and laminated PDP integrated panel material for simplified manufacturing process and thinner wall, by forming a reflection-preventive layer on a front surface side while forming an electromagnetic wave shielding heat-ray cutting layer on a rear surface side. SOLUTION: Related to an electromagnetic wave shielding light-transmission window material 1 and a laminated panel material 10, on a transparent substrate 2A and a transparent substrate 2 on a front surface side, a reflection-preventive film 5 is formed on the front surface side while an electromagnetic wave shielding heat-ray cutting film 3 is formed on the rear surface side. As the reflection-preventive film 5, a single-layer film and a laminated film comprising a high-refractive-index transparent film and low-refractive-index transparent film may be comprised. As the high- refractive-index transparent film, a thin film of a refractive index 1.8 or above such as a stannic indium oxide film is formed, and as the low-refractive-index film, a thin film comprising such low-refractive-index material as SiO2 of refractive index 1.6 or less is formed. As the electromagnetic wave shielding heat-ray cutting film 3, a multi-layer film where an oxide transparent conductive film and a metal thin film are alternately laminated is preferred.
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