Patent ID: 7612376
Filing Date: 2009-11-03
Classification: G02F,G09G,H01L

Abstract:
1. A semiconductor device comprising: an N-type thin film transistor having an active layer over a substrate; wherein the active layer comprises a channel region with a channel length of 0.01 to 2 μm; wherein the active layer comprises crystal grain boundaries substantially extending along a channel length direction and existing between top and bottom surfaces of the active layer; and wherein a threshold voltage of the N-type thin film transistor is −0.5 to 15V, the semiconductor device further comprising, over the substrate: a pixel matrix circuit including at least source lines and gate lines; a driver circuit including at least a source line driver circuit for driving the source lines and a gate line driver circuit for driving the gate lines over the substrate; and a logic circuit for processing a signal required for driving the driver circuit and a signal including image information transmitted to the pixel matrix circuit over the substrate.