Patent ID: 6207971
Filing Date: 2001-03-27
Classification: G02F,G09G,H01L

Abstract:
An active matrix type display apparatus comprising:a plurality of pixels; anda plurality of drive elements for respectively driving the plurality of pixels, each drive element including a thin film transistor of a bottom gate structure, the thin film transistor having:an insulator substrate;a gate electrode located on the insulator substrate;an insulator film provided on the insulator substrate and the gate electrode; anda polycrystalline silicon film located on the insulator film, a channel defined in a first portion of the polycrystalline silicon film over the gate electrode, a drain and a source defined in second and third portions of the polycrystalline silicon film over the insulator substrate, grain sizes of all of the drain and all of the source being greater than a grain size of the channel by laser annealing.