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Display control method and apparatus

  • US 6,100,872 A
  • Filed: 08/27/1997
  • Issued: 08/08/2000
  • Est. Priority Date: 05/25/1993
  • Status: Expired due to Fees
First Claim
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1. An image display apparatus comprising:

  • input means for entering image data;

    quantizing means for quantizing the entered image data by quantizing input data while correcting an error between input data and output data; and

    display means for displaying an image based upon the quantized data from said quantizing means, with said display means displaying the image by scanning a specific area by non-interlacing and scanning other areas by interlacing, whereinsaid quantizing means performs quantization, starting while correcting the error from the entered image data for a preceding area located a plurality of lines before the specific area without storing error data of the preceding area in a memory, when said display means scans the specific area by the non-interlacing, and whereinsaid quantizing means outputs the quantized data in the specific area without outputting the quantized data in the preceding area.

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