US 2001/0022572 A1 · Electro-optical apparatus and electronic device

Abstract

In an active-matrix driving type electro-optical apparatus including an increased number of image signal lines corresponding to an increased number of phases obtained by means of serial-to-parallel conversion, a liquid crystal apparatus (200) includes a liquid crystal layer disposed between two substrates, pixel electrodes (11) formed in a matrix fashion on a substrate (1), and TFTs (30) serving for switching and controlling the pixel electrodes(11) for suppressing the intrusion of high-frequency clock noise into an image signal. The image signal lines (VID1-VID12) extend on the substrate at both sides of a data line driving circuit (101). The image signal lines (VID1-VID12) are electrically shielded from such as clock signal lines (CLX, CLX′) by shielding lines (80, 80′, 82, 86) formed on the substrate and maintained at a constant voltage.

Claims26

Dependent claims

An electro-optical apparatus comprising a substrate and elements formed on said substrate, said elements including:

a plurality of scanning lines;
a plurality of data lines intersecting said plurality of scanning lines;
a plurality of switching elements connected to said plurality of scanning lines and data lines;
a plurality of pixel electrodes connected to said plurality of switching elements;
data signal supply means for supplying, in response to a clock signal, a data signal corresponding to an image signal to said plurality of data lines;
an image signal line for supplying said image signal input via a first external input terminal to said data signal supply means;
a clock signal line for supplying said clock signal input via a second external input terminal to said data signal supply means;
and an electrically conductive line maintained at a constant electric potential for shielding said image signal line from said clock signal line.

5 more elements

An electro-optical apparatus comprising a substrate and elements formed on said substrate, said elements including:

a plurality of data lines;
a plurality of scanning lines crossing said plurality of data lines;
a plurality of switching elements connected to said plurality of data lines and said plurality of scanning lines;
a plurality of pixel electrodes connected to said plurality of switching elements;
a plurality of image signal lines supplied with image signals;
a plurality of control signal lines supplied with control signals including a clock signal;
and data signal supply means which receives said image signals and said control signals via said image signal lines and said control signal lines and which supplies data signals corresponding to said image signals to said plurality of data lines in accordance with said control signals;
wherein a first group of image signal lines of said plurality of image signal lines extend, on said substrate, at one side of said data signal supply means and a second group of image signal lines of said plurality of image signal lines extend, on said first substrate, at the opposite side of said data signal supply means, and said electro-optical apparatus further comprises at least one electrically conductive line which is formed on said substrate so as to electrically shield said first group of image signal lines and said second group of image signal lines from said plurality of control signal lines.

5 more elements

Dependencies are inferred from the claim text.

Electro-optical apparatus and electronic device

Life of this patent

Electro-optical apparatus and electronic device

Life of this patent

Abstract

Claims26