Method for manufacturing a flat panel display with improved white balance

In a flat panel display wherein the display comprises a plurality of pixels, each of the pixels including R, G, and B unit pixels, and each of the unit pixels includes at least one transistor, a method for manufacturing the flat panel display comprises:

• forming an amorphous silicon film on an insulating substrate;
• forming a first mask and a second mask for metal induced lateral crystallization (MILC) on the amorphous silicon film;
• depositing a metal film for MILC over the substrate;
• crystallizing the amorphous silicon film into a polycrystalline silicon film so a portion corresponding to the first mask and the second mask is crystallized by a MILC method and a remaining portion is crystallized by a metal induced crystallization (MIC) method;
• removing the first mask, the second mask, and the metal film;
• and
• patterning the polycrystalline silicon film so a semiconductor layer of a transistor of a unit pixel having the highest luminous efficiency among the R, G, and B unit pixels is made of the polycrystalline silicon film crystallized by the MIC method, and semiconductor layers of transistors of unit pixels having a relatively lower luminous efficiency are made of the polycrystalline silicon film crystallized by the MILC method.