| 摘要 |
PROBLEM TO BE SOLVED: To provide a viewing angle selection sheet allowing the light entering from the specific direction to transmit but allowing not the light entering from the other direction to transmit, to explain in details, having characteristics (selectiveness of viewing angle) for enabling a user to visually confirm an object or the like behind the sheet from the fixed direction but preventing the user from visually confirming it from another direction through the sheet and a function for preventing its performance from being reduced due to reduction of contrast when external light is applied on a display device and to provide the method for manufacturing the same. SOLUTION: The viewing angle selection sheet includes a viewing angle control part including a light shielding part and a light non-shielding part, and the viewing angle control part is formed by a heat sensitive image forming layer. COPYRIGHT: (C)2011,JPO&INPIT
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