Display device having an improved video signal drive circuit

Selective cutting (e.g. – punching) – With specific means to select a plurality of tools – Coded interposer

Reexamination Certificate

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C345S206000

Reexamination Certificate

active

10147226

ABSTRACT:
A display device has a video circuit for pixels arranged in a matrix. The video circuit includes a digital data store section; a transfer-data processing section for generating a data signal at a time assigned to one of gray scale levels for the data in synchronism with a supplied clock; a gray-scale voltage generator for generating gray-scale voltages; a selection gate circuit for successively generating gate pulses associated with the gray-scale voltages, in synchronism with the clock; and a gray-scale voltage selector circuit for receiving the data signal via a selection-data transfer line provided for each of plural columns of the pixels, and for successively selecting the gray-scale voltages from the gray-scale voltage generator, in synchronism with the gate pulses. The gray-scale voltage selector circuit outputs as the video signal, one of the gray-scale voltages selected from the successively selected gray-scale voltages in synchronism with the data signal.

REFERENCES:
patent: 5414443 (1995-05-01), Kanatani et al.
patent: 5534885 (1996-07-01), Saitoh
patent: 5784041 (1998-07-01), Okada et al.
patent: 6281891 (2001-08-01), DaCosta et al.
patent: 6323836 (2001-11-01), Shin
patent: 6498596 (2002-12-01), Nakamura et al.
patent: 6621547 (2003-09-01), Kang

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