Patent ID: 7298448
Filing Date: 2007-11-20
Classification: G02F

Abstract:
1. A method for fabricating a liquid crystal display (LCD) with a uniform common voltage, the method comprising: providing a lower substrate having a display area and a non-display area; forming a plurality of scan lines, a plurality of common electrodes, and a plurality of common electrode pads on an upper surface of the lower substrate simultaneously, wherein the common electrodes are adapted to transmit a common voltage and are positioned at the same plane as a plane where the common electrode pads are positioned on the lower substrate, and the common electrode pads are electrically connected to the common electrodes; forming a plurality of data lines on the upper surface of the lower substrate, wherein the data lines are arranged substantially perpendicular to the scan lines to form a pixel matrix in the display area, the pixel matrix comprising a plurality of pixels; providing an upper substrate having a plurality of color filters, and black matrices disposed between adjacent color filters, the black matrices being covered by the color filters, and each color filter having a lower surface; forming a plurality of photo spacers on the upper substrate, each photo spacer being in direct contact with the lower surfaces of adjacent color filters, and corresponding to one of the black matrices and one of the common electrode pads on the lower substrate; forming a conductive material layer on the upper substrate and covering the surface of the photo spacers; combining the upper substrate and the lower substrate face to face by the photo spacers to support a space between the upper substrate and the lower substrate, and electrically connecting the conductive material layer covering the surface of each of the photo spacers to the common electrode pads corresponding to each of the photo spacers; and filling a plurality of liquid crystal molecules in the space between the upper substrate and the lower substrate, and sealing the space between the upper substrate and the lower substrate.