Liquid crystal display and a method for manufacturing the same
AssigneeSamsung Electronics Co., Ltd.
InventorsByung-Hoo Jung, Chang-Won Hwang, Byung-Seong Bae
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Abstract
A source electrode and a metal pattern for a storage capacitor are formed on an insulating substrate, a silicon layer having a doped source region and a doped drain region is formed on the substrate and the source and the drain regions directly contact to the source electrode and the metal pattern. A gate insulating film is formed thereon, and a storage electrode is formed on the gate insulating film opposite the metal pattern. A passivation film covering the storage electrode is formed and the pixel electrode is formed thereon. The pixel electrode is directly connected to the drain region or to the metal pattern.
Claims12
A liquid crystal display comprising:
- an insulating substrate;
- a semiconductor layer formed on the substrate and including a source region, a drain region and a channel region located between the source region and the drain region;
- a gate insulating film covering the semiconductor layer;
- a gate electrode and a storage electrode formed on the gate insulating film;
- an interlayer insulating film covering the gate electrode and the storage electrode and having a recess formed in an upper surface thereof and overlying the storage electrode;
- and
- a pixel electrode connected to the drain region and formed over the interlayer insulating film opposite the storage electrode.
A manufacturing method of a liquid crystal display comprising the steps of:
- forming a semiconductor layer on an insulating substrate;
- forming a gate insulating film covering the semiconductor layer;
- forming a gate electrode and a storage electrode on the gate insulating film;
- depositing an interlayer insulating film covering the gate electrode and the storage electrode;
- partially etching the interlayer insulating film to reduce the thickness of a first portion of the interlayer insulating film opposite the storage electrode;
- and
- forming a pixel electrode on the interlayer insulating film.
Dependencies are inferred from the claim text.