| 摘要 |
<p>The present invention relates to a complex optical sheet in which a first optical sheet and a second optical sheet, where a prism pattern is formed, are unified by an adhesive layer formed between the first optical sheet and the second optical sheet. The prism pattern includes a first prism and a second prism lower than the first prism. The first prism and the second prism penetrate into the adhesive layer. A ratio (G1/G2) of a first penetration length (G1), by which the first prism penetrates into the adhesive layer, to a second penetration length (G2), by which the second prism penetrates into the adhesive layer is 1.5-7. Because the second prism and the first prism having a prism step penetrate into the adhesive layer and are unified together, the complex optical sheet has excellent luminance and adhesive force, and can prevent moire phenomenon.</p> |
