Patent ID: 7760274

Claim:
A programmable mask for fabricating a biomolecule array or polymer array, the mask comprising: a first substrate including a black matrix having openings for incident UV and first pixel electrodes; a second substrate including thin film transistors for switching pixel regions which correspond to the openings according to applied electric signals and second pixel electrodes connected to drain electrodes of the thin film transistors; a liquid crystal layer interposed between the first substrate and the second substrate, the liquid crystal layer including liquid crystal whose arrangement can be changed according to electric signals of the thin film transistors so as to selectively transmit light; a first polarizing plate laminated on one side of the first substrate to polarize UV light; a second polarizing plate laminated on one side of the second substrate to polarize UV light; and a lens array layer laminated on one side of the second polarizing plate including gradient index lenses which correspond to the pixel regions, wherein each gradient index lens has a flat optical surface and an index of refraction that gradually increases towards the center of each gradient index lens such that each gradient index lens has a focal point at a corresponding lower part of a sample plate of an array forming chamber in which the biomolecule array or polymer array is formed.