Liquid crystal display unit having an enclosed space between the liquid crystal cell and at least one polarizer
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United States of America Patent
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Apr 16, 1996
Grant Date -
N/A
app pub date -
Feb 25, 1994
filing date -
Jun 30, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a liquid crystal display unit for use in a liquid crystal projector used in a high-temperature environment, this invention is directed to provide a liquid crystal display unit which prevents deterioration of the display unit and deformation of a polarizer plate due to temperature, and has a dust-proofing effect for a liquid crystal cell. The liquid crystal display unit 1 comprises at least one liquid crystal cell 2 and at least one polarizer member 3, and further includes a frame member 5 disposed for forming a space 4 between the polarizer member 3 and the liquid crystal cell 2, a vent hole 6 formed at at least a part of the frame member 5 and a filter 7 disposed in at least a part of the vent hole 6.
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