Appeal No. 1999-1559
Application No. 08/762,687
comprising twisted nematic liquid crystal material having a
positive dielectric anisotropy between two substrates. On
page 1 of the specification, Appellant discloses that liquid
crystal display devices using twisted nematic liquid crystal
material have problems due to threshold voltage and saturation
voaltage are dependent on ambient temperature. On page 2 of
the specification, Appellant disclose that the invention is
based on the recognition that this problem is solved by
controlling the frequency at which the pixels are driven based
upon the variation of the ambient temperature. On page 3 of
the specification, Appellant discloses that Figure 1 is a
diagrammatic cross-section of a part of a liquid crystal
display comprising a crystal 1 having a twisted nematic liquid
crystal material 2 which is present between two supporting
substrates 3 and 4. Appellant also discloses that the cell
includes a temperature sensor 9 which is connected to a drive
section 10. Figure 1 shows that drive section 10 includes
element 17. On page 5 of the specification, Appellant
discloses that Figure 6 shows diagrammatically the structure
of element 17 of the drive section 10. In particularly,
Appellant discloses that element 17 comprises a frequency
2
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Last modified: November 3, 2007