Patent ID: 6154264
Filing Date: 2000-11-28
Classification: G02F

Abstract:
A reflective liquid crystal display substrate structure having a thin film transistor and a pixel electrode comprising:an insulating substrate;source/drain electrodes formed on said insulating substrate, said source/drain electrodes being separated from each other by a gap;a pixel electrode formed as a single layer with one of said source/drain electrodes, said pixel electrode extending over said insulating substrate;a semiconductor layer extending over said insulating substrate in contact directly with the gap between said source/drain electrodes and also extending over at least respective parts of said source/drain electrodes for connecting said source/drain electrodes;a gate insulation film disposed on and substantially extending over said semiconductor layer;a gate electrode disposed on said gate insulation film and extending over at least part of said gate insulation film, said gate electrode being positioned to cover said semiconductor layer and separated by said gate insulation from said semiconductor layer for shielding said semiconductor layer from incident light; anda reflective layer formed over said pixel electrode so as to be electrically separated from said pixel electrode, from said gate electrode and from said semiconductor layer;wherein said reflective layer comprises a single metal film which extends over said pixel electrode and being separated from said semiconductor layer.