| 摘要 |
<p>PURPOSE: A flexible substrate is provided to easily block the impregnation of external moisture to a paper substrate and to improve lifetime and luminous efficiency. CONSTITUTION: A flexible substrate(100) comprises: a paper substrate(110); a lower protective film(120) formed on the lower part of the paper substrate; and an upper protective film(130) formed on the upper part of the paper substrate. The upper protective film includes a plurality of vertically spaced film layers(131a,131b) and a metal layer(132) formed between a plurality of film layers. The film layer is formed using a parlylene polymer, wax-based emulsion, synthetic rubber-based latex, acrylic emulsion, polyolefin and mixture thereof.</p> |
