Retardation compensation element and manufacturing method of the same
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United States of America Patent
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Sep 20, 2011
Grant Date -
Oct 23, 2008
app pub date -
Apr 17, 2008
filing date -
Apr 19, 2007
priority date (Note) -
Expired
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Abstract
Two types of layers are simultaneously formed on a substrate and another substrate under the same layer forming condition, the heights of which are equal to a half height of an intended retardation compensation layer. Physical properties of the respective two types of layers formed on the substrates are identical to each other, and if deviations are produced in retardation distribution characteristics for azimuth angles of incident light, these deviations are commonly provided in the respective two types of layers. When one substrate is superposed with the other substrate and these superposed substrates are integrated with each other in order to make a single sheet of retardation compensation element, after one of these substrates is rotated by an angle of 90 degrees with respect to the other substrate, these substrates are stuck to each other by an adhesive agent.
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