Abstract: A back light LCD module has an upper glass substrate and a lower glass substrate. A layer of color filter is deposited on both the upper glass substrate and the lower glass substrate. The color filter has a plurality of color layers and black matrixes. The color layer includes red layer, green layer, and blue layer. A protection layer and a conductive layer are sequentially deposited on both color filters. The liquid crystal material fills between the upper and lower conductive layers.