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Method for driving a liquid crystal display device

  • US 4,908,710 A
  • Filed: 05/12/1988
  • Issued: 03/13/1990
  • Est. Priority Date: 05/12/1987
  • Status: Expired due to Term
First Claim
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1. A video display method for driving a liquid crystal display for an interlaced video signal system having a line memory for storing one horizontal period of video data of a complex video signal, a field memory for storing one field of video data, a signal driving circuit for generating signal driving signals in response to the video data transferred from either the line memory or the field memory and a scanning driving circuit for generating scanning driving signals for a display in which the video signal is divided into an odd and even field comprising the following steps:

  • sequentially writing the video data of one horizontal period of the video signal in the line memory;

    during the first half of the horizontal period of the video signal, transferring the video data of the previous field, which has been stored before and after the present horizontal period to the signal driving circuit; and

    during the second half of the horizontal period, transferring the video data stored in the line memory to the signal driving circuit.

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