| 摘要 |
PROBLEM TO BE SOLVED: To obtain a composite substrate which is usable as a plastic substrate useful in a liquid-crystal display device and has excellent surface smoothness and high productivity. SOLUTION: The method for producing a composite substrate having≤2μm surface roughness (Ry) comprises impregnating or coating a fiber cloth with a thermosetting resin composition, drying the fiber cloth to give prepreg, laminating releasable resin sheets to the two sides of the dried prepreg, curing the resin and then releasing the releasable resin sheets. The composite substrate has≥180°C glass transition temperature (Tg) or thermal decomposition temperature of the releasable resin sheets, comprises a plastic having <90 ppm coefficient of linear thermal expansion from 150°C to 180°C and has≤0.5μm surface roughness (Ry) at the transfer face side. COPYRIGHT: (C)2004,JPO&NCIPI |
