Display device

Details Display device Display device

1997-04-23

2000-07-18

Luu, Matthew

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

G09G 322

Patent

active

060913819

ABSTRACT:
A display device capable of realizing stepless gradation expression depending on a video signal inputted, to thereby highly improve quality of an image displayed. An FET element is arranged for each of cathode electrodes to permit a drain current obtained depending on a voltage of a video signal applied to a gate of each FET element to be fed to each cathode electrode. Also, a video signal correction circuit is arranged for providing the video signal applied to each FET element with characteristics reverse to gate/source voltage-drain current characteristics of the FET element. Such construction permits a cathode current to be controlled in a stepless manner depending on a level of the video signal, to thereby realize stepless gradation expression depending on the video signal, resulting in quality of an image displayed being extensively increased.

REFERENCES:
patent: 5663742 (1997-09-01), Hush
patent: 5847515 (1998-12-01), Lee et al.

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