| 摘要 |
PROBLEM TO BE SOLVED: To stereoscopically view a pattern on a display device which displays a commercial sign, etc. SOLUTION: The display device has a transparent layer 21, a half-mirror part (1st vapor-deposited part) 23 arranged on the front side of the transparent layer, and a 2nd vapor-deposited part 22 which is arranged on the back side of the transparent layer. At the 2nd vapor-deposited part, an etching pattern layer 22c having a specified pattern is formed and an illuminaire 30 irradiates the etching pattern layer with light from the back side of the 2nd vapor- deposited part. When the irradiation light transmitted through the etching pattern layer passes through the transparent layer and reaches the half-mirror part, a portion of the light is transmitted through the half-mirror part and exit from the front. The portion is reflected by the half-mirror part to pass through the transparent layer again and reach the 2nd vapor-deposited part and is reflected by the 2nd vapor-deposited part to travel forward. This is repeated and then the pattern is viewed while multiplied along the depth. COPYRIGHT: (C)2003,JPO
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