LIQUID CRYSTAL DISPLAY APPARATUS WITH PRIVATE MODE
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United States of America Patent
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Issued Date -
Jan 9, 2014
app pub date -
Jul 9, 2012
filing date -
Jul 9, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A liquid crystal (LC) display apparatus includes a LC display panel for displaying data; a collimated backlight system disposed under the LC display panel; a scattering-type LC cell disposed between the LC display panel and the collimated backlight system; and a controller coupled to the LC display panel, the collimated backlight system and the scattering-type LC cell. A luminance of the collimated backlight system is adjustable by the controller. When the LC display apparatus is switched to be operated in the normal mode by the controller, the scattering-type LC cell is in an off-state and scatters the collimated light to present a wide brightness distribution. When the LC display apparatus is switched to be operated in the private mode by the controller, the scattering-type LC cell is in an on-state and the collimated light passes through the scattering-type LC cell to present a narrow brightness distribution.
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