Cholesteric liquid crystal display device and display driver
First Claim
1. A display driver for driving a passive matrix liquid crystal display panel using cholesteric liquid crystal material comprising:
- a shift register for shifting a row data or column data inputted to the driver;
a data latch circuit for latching the row data or column data from the shift register; and
a drive voltage select/output circuit for selecting at least one of a plurality of voltage supplies and outputting a row drive voltage or column drive voltage to form an alternated drive voltage which activates picture elements of the liquid crystal panel.
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Accused Products
Abstract
A display driver is provided which is suitable for driving dynamically a cholesteric liquid crystal display panel of a passive matrix drive type. The driver comprises a shift register for shifting a row data or column data inputted to the driver, a data latch circuit for latching the row data or column data from the shift register, and a drive voltage select/output circuit for selecting at least one of a plurality of voltage supplies and outputting a row drive voltage or column drive voltage to form an alternated drive voltage which activates picture elements of the liquid crystal panel.
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Citations
12 Claims
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1. A display driver for driving a passive matrix liquid crystal display panel using cholesteric liquid crystal material comprising:
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a shift register for shifting a row data or column data inputted to the driver;
a data latch circuit for latching the row data or column data from the shift register; and
a drive voltage select/output circuit for selecting at least one of a plurality of voltage supplies and outputting a row drive voltage or column drive voltage to form an alternated drive voltage which activates picture elements of the liquid crystal panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification