A mother glass including a plurality of organic electro luminescence arrays having a scan pad and a data pad, wherein the plurality of organic electro luminescence arrays are arranged in a matrix type, comprising a non-array area, arranged between the organic electro luminescence arrays arranged in the matrix type, and an edge area located at an exterior of the arrangement of the matrix; at least more than one positive shorting bar formed at the edge area to supply with a positive voltage; at least more than one negative shorting bar formed at the edge area to supply with a negative voltage; a first line formed at the non-array area to electrically connect the data pad, formed in each of organic electro luminescence arrays, to the positive shorting bar; and a second line formed at the non-array area to electrically connect the scan pad, formed in each of organic electro luminescence arrays, to the negative shorting bar.