Display device

Details Display device Display device

2008-06-13

2011-10-11

Dinh, Duc (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S690000, C345S211000

Reexamination Certificate

active

08035593

ABSTRACT:
A display device includes a display panel having a plurality of video lines, and a drain driver receiving n-bit display data, and connected to the plurality of video lines. The drain driver includes a gray-scale voltage generating circuit which generates M (M<2n) pieces of gray-scale voltages, a decoder circuit which selects two gray-scale voltages from the M pieces of gray-scale voltages based on upper-order bits of the n-bit display data, an operational amplifier which includes k (k≧3) pieces of non-inverting input terminals and one inverting input terminal connected to an output terminal of the operational amplifier, and a switching circuit which selects the two gray-scale voltages of the decoder circuit, and applies the two gray-scale voltages to the k pieces of non-inverting input terminals of the operational amplifier based on lower-order m (n>m≧2) bits of the n-bit display data.

REFERENCES:
patent: 6441763 (2002-08-01), Nakao
patent: 6535189 (2003-03-01), Akiyama et al.
patent: 2002-43944 (2002-02-01), None

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