Patent ID: 6043858
Filing Date: 2000-03-28
Classification: G02F

Abstract:
In a method of forming a liquid crystal display having a first substrate with a surface with a first pattern of pixel electrodes joined to a second substrate having a surface facing the electrodes with a black mask pattern aligned with the first pattern with a space therebetween receiving a liquid crystal by using a thermosetting sealing material and applying heat and pressure so that the sealing material bonds the substrate together, the improvements comprising selecting a first substrate having a first coefficient of thermal expansion smaller than a second coefficient of thermal expansion of the second substrate, presetting the first pattern to have a dimension greater than a preset dimension of the black mask pattern by an amount equal to the difference of the thermal expansion of the first and second substrates during the step of applying heat and pressure, aligning the center of the first pattern with the center of the black mask pattern and then applying the heat and pressure to bond the substrates together with the space therebetween so that after cooling, the first pattern and mask pattern are aligned across the surfaces of the substrates .