Light-diffusing film having pores
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United States of America Patent
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Sep 2, 2008
Grant Date -
Sep 21, 2006
app pub date -
Mar 17, 2006
filing date -
Mar 18, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed herein is a light-diffusing film having pores for use in a backlight unit of a TFT-LCD. The light-diffusing film having pores of this invention comprises a base sheet composed of a synthetic resin; a light-diffusing layer laminated on one surface of the base sheet and having pores formed by applying a composition including a light-diffusing resin and light-diffusing particles contained in the light-diffusing resin under controlled composition supply pressure of 1.about.5 kgf/cm.sup.2 and travel speed of the base sheet of 10.about.200 m/min; and an antiblocking layer laminated on the other surface of the base sheet. According to this invention, the light-diffusing film has improved total light transmittance and light diffusibility owing to the pores formed in the light-diffusing layer, and is thus usefully applicable to a backlight unit of a TFT-LCD.
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