Image display device, image display controller, display...

Details Image display device, image display controller, display... Image display device, image display controller, display...

2005-02-08

2005-02-08

Mengistu, Amare (Department: 2673)

Computer graphics processing and selective visual display system

Display driving control circuitry

Waveform generator coupled to display elements

C345S094000

Reexamination Certificate

active

06853372

ABSTRACT:
To easily reduce the occurrence of uneven luminance or flicker in a screen without any manufacturing or cost problems. An output potential waveform outputted from a switching unit16of a gate driver IC7to a scanning line G is set to have a first waveform having a potential for turning on a switching elements set as its amplitude, and a second waveform connected to the first waveform and oscillated within a period shorter than the second waveform with amplitude smaller than that of the first waveform. Thus, a falling waveform of a scanning signal to be supplied to the switching elements through the scanning line G is inclined beforehand, nonuniformity of the inclination of the falling waveform of the scanning signal supplied to each of the switching elements is reduced, and the occurrence of uneven luminance or flicker in the screen is suppressed.

REFERENCES:
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patent: 5648794 (1997-07-01), Jelsma et al.
patent: 5963184 (1999-10-01), Tokunaga et al.
patent: 6295042 (2001-09-01), Aoki
patent: 20010045930 (2001-11-01), Miyajima et al.
patent: 06-110035 (1994-04-01), None
patent: 11-281957 (1999-10-01), None

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