Display control method and apparatus

Details Display control method and apparatus Display control method and apparatus

1997-08-27

2000-08-08

Lao, Lun-Yi

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345 89, 345 97, 358456, G09G 300

Patent

active

061008729

ABSTRACT:
A display control method and apparatus for quantizes input data to binary or multivalued data and delivers the quantized data to a display device such as a matrix panel display. When input data is quantized as by the error-diffusion method and displayed, an area in which there is no change in the display is scanned by multi-interlacing, whereas an area in which there is a change in the display is scanned preferentially and in interlaced fashion. As a result, a flicker-free image having a high picture quality can be displayed at high speed. Further, error produced by the error-diffusion method is reset at a prescribed line and, at the time of the error resetting operation, error-diffusion processing is executed from a line located several lines earlier, thereby preventing the occurrence of sparkling noise and making it possible to display an image of a high picture quality in which the continuity of error-diffusion processing is maintained.

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patent: 5483634 (1996-01-01), Hasegawa
patent: 5701135 (1997-12-01), Aratani et al.

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