Liquid crystal display and method of manufacturing the same

A method of forming a liquid crystal display device, comprising the steps of:

• forming a gate line and a counter electrode on a face of a substrate;
• forming an insulating film over said gate line and said counter electrode;
• forming a semiconductor layer and a metal layer over said insulating film;
• etching said semiconductor layer and said metal layer to produce the same pattern;
• forming a transparent conductive film over said semiconductor layer and said metal layer;
• etching said transparent conductive film to form a pixel electrode and to expose a portion of said metal layer;
• and
• etching said exposed portion of said metal layer to form a drain electrode and a source electrode;
• wherein said drain electrode is separated from said source electrode and said source electrode is connected to said pixel electrode.

A method of forming a display device, comprising the steps of:

• forming a gate line and a counter voltage signal line on a face of a substrate;
• forming an insulating film over said gate line and said counter voltage signal line;
• forming a multi-layered structure comprising a semiconductor layer disposed over said insulating film and a metal layer disposed over said semiconductor layer;
• forming a transparent conductive film over said multi-layered structure;
• removing some of said transparent conductive film to form a pixel electrode;
• removing some of said metal layer to form a drain electrode and a source electrode;
• forming a protective film to cover at least an area in which said pixel electrode is formed;
• forming a counter electrode connected to said counter voltage signal line on an upper surface of said protective film;
• wherein said drain electrode is separate from said source electrode and said source electrode is connected to said pixel electrode.

A method of manufacturing a liquid crystal display device which includes at least one pixel area provided on a liquid-crystal-side surface of one of a pair of substrates, a liquid crystal interposed between said pair of substrates, a thin film transistor to be driven by a scanning signal from a gate line, a pixel electrode for receiving a video signal from a drain line supplied via said thin film transistor;

• a counter electrode connected to a counter voltage signal line for generating an electric field having a component parallel to said substrates between said counter electrode and said pixel electrode, said thin film transistor being a stacked structure comprising a sequential stacking of a gate electrode, an insulating film, a semiconductor layer, a drain electrode and a source electrode, said gate electrode being connected to said gate line, said drain electrode being connected to said drain line, said source electrode being connected to said pixel electrode, said manufacturing method comprising the steps of:
• forming said gate line and said counter voltage signal line on a first surface of said substrate;
• depositing said insulating film, said semiconductor layer, and drain line;
• etching said semiconductor layer and said drain line a first pattern;
• forming said source electrode and said drain electrode connected to said drain line;
• forming said pixel electrode connected to said source electrode, said pixel electrode comprising a transparent conductive film;
• and
• forming a counter electrode which is disposed over said pixel electrode with a protective film interposed therebetween and is connected to said counter voltage signal line.