Patent ID: 7122489

Claim:
A method of manufacture of a patterned, multi-layered thin film structure for use in producing organic light emitting diodes (OLEDs), organic thin film transistors (OTFTs), liquid crystal displays (LCDs), or e-paper, comprising: selecting thin film material of ablatable layers based on the comparative absorption strengths, thermal conductivities, and melting points of overlying and underlying layers; selecting material for layer to be added to the structure and ablated based on material of one or more underlying layers previously added, including deeming a factor of two in absorption strength as sufficient for differential ablation when the thermal and bonding properties are not dramatically detrimental, specifically when: (1) thermal conductivity of the layer to be added is within a factor of 100 compared to the underlying layer, if the conductivity of the uppermost layer is greater; and (2) melting point is within a differential of 500° C. if the melting point of the underlying layer is lesser; patterning layers by using an ultra-fast laser programmed with appropriate operational parameters in accordance with the thermal, strength and absorption spectra characteristics of the layer being patterned; and forming the multi-layered thin film structure by differentially patterning and layering thin film material, including adding layers of thin film material and patterning an uppermost layer before adding a next layer.