Patent ID: 6958792

Claim:
A method of utilizing dual-layer photoresist to simultaneously form black matrixes and spacers, comprising: forming a color filter layer on a control circuit substrate; forming pixel electrodes on the color filter layer to connect control devices on the control circuit substrate, respectively; forming a first photoresist on the control circuit substrate; performing a first soft baking step to soft-bake the first photoresist; forming a second photoresist on the first photoresist; performing a second soft baking step to soft-bake the second photoresist; simultaneously exposing the second photoresist and the first photoresist; simultaneously developing the second photoresist and the first photoresist to form spacers and black matrixes, wherein the spacers are located on supporting areas on metal lines of the control circuit substrate and the black matrix is on the control devices; and hard baking the second photoresist and the first photoresist.