Shutter and camera module having same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 17, 2012
Grant Date -
Mar 1, 2012
app pub date -
Nov 19, 2010
filing date -
Aug 27, 2010
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A shutter includes a first insulating substrate, a first electrode layer, a second insulating substrate, a second electrode layer, and a light-blocking layer. The first electrode layer is formed on the first insulating substrate. The first electrode layer includes layer portions insulated from one another. The second electrode layer is formed on the second insulating substrate. The light-blocking layer is disposed between the first and second electrode layers. The light-blocking layer includes a liquid and opaque and charged balls movably distributed in the liquid. At least one layer portion is selected. The at least one selected layer portion and the second electrode layer are connected to respective positive voltage and negative voltage to generate an electric field to the charged balls. The charged balls are attracted by the electric field to arrange in a configuration corresponding to the at least one selected layer portion to block light.
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