A method of forming a color filter substrate having pixels of at least two different colors by use of a negative photoresist material of the last color deposited. The negative photoresist is coated over the pixels and the exposed surface of the substrate. The back of the substrate is then exposed to...http://www.google.de/patents/US5093738?utm_source=gb-gplus-sharePatent US5093738 - Color filter manufacturing method using negative photoresist material for the filter