Patent ID: 7088050
Filing Date: 2006-08-08
Classification: G02F,G09G

Abstract:
1. A display device, comprising: a main substrate having a plurality of display pixels being arranged in matrix at intersection points of a plurality of scanning lines and a plurality of signal lines, a scanning line electrode array formed with a plurality of electrodes being connected to a plurality of the scanning lines, a signal line electrode array formed with a plurality of electrodes being connected to a plurality of the signal lines, and a frame part formed in an edge of the substrate along the scanning line electrode array and the signal line electrode array; a scanning line driving element having a driving circuit for electrically selecting the scanning lines by being mounted to the frame part along the scanning line electrode array; a signal line driving element having a driving circuit for electrically selecting the signal lines by being mounted to the frame part along the signal line electrode array; and a flexible flat cable for supplying a signal and a power to the driving circuits of the scanning line driving element and the signal line driving element, wherein the scanning line driving element and the signal line driving element have the driving circuits formed with polycrystalline silicon thin-film transistors on a sub-substrate whose thermal expansion coefficient is approximate to that of the main substrate; a width of the frame part to which the signal line driving element is mounted is approximate to a width of the signal line driving element, and a width of the frame part to which the scanning line driving element is mounted is approximate to a width of the scanning line driving element; and a length of at least the scanning line driving element or the signal line driving element is set shorter than the respective frame part so as to keep a space for mounting the flexible flat cable.