Appeal No. 96-2740
Application No. 08/242,602
The invention is directed to a liquid crystal display (LCD). More particularly, a
method for aligning a first substrate having a first pattern of pixel electrodes with a second
substrate having a black mask pattern is disclosed and claimed.
Claim 8 is reproduced as follows:
8. 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.
Claim 8 stands rejected under 35 U.S.C. § 103 as unpatentable over appellants’
admitted prior art [APA] Figure 1.
Reference is made to the brief and answer for the respective positions of
appellants and the examiner.
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