Display device

Details Display device Display device

1993-04-20

1996-07-16

Hjerpe, Richard

Television

Basic receiver with additional function

Multimode

348445, 348913, 345132, H04N 5265, H04N 701

Patent

active

055371493

ABSTRACT:
A display device having a display screen of 16:9 aspect ratio for displaying fully a video image of 4:3 aspect ratio without leaving a blank space and a display device having a display screen of 4:3 aspect ratio for displaying fully a video image of 16:9 aspect ratio without leaving a blank space are disclosed. The former device includes at least one of the first circuitry for non-linearly expanding a horizontal display scale of the 4:3 image being fully displayed to fill up the 16:9 screen, in right and left portions of the image relative to the horizontal center of the image as such that a rate of non-linear expansion is increased as a horizontal position within the image becomes distant from a horizontal center of the image, and second circuitry for non-linearly compressing a vertical display scale of the 4:3 image being fully displayed to fill up the 16:9 screen, in upper and lower portions of the image relative to the vertical center of the image as such that a rate of non-linear compression is increased as a vertical position within the image becomes distant from a vertical center of the image. In the latter device, the horizontal scale is non-linearly compressed, and the vertical scale is non-linearly expanded.

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Operating manual for the "Model AV-36W1 Television Receiver" designed and manufactured by Victor Company of Japan, Ltd.
Patent Abstracts of Japan, vol. 13, No. 46 (E-711), 2 Feb. 1989 & JP-A-63 240 279 (Matsushita), 5 Oct. 1988.

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