Appeal No. 2001-1116
Application No. 09/070,222
and a projection lens system for projecting said image information, a color-separating prism being
arranged between the modulation system and the illumination system, and a polarizing beam splitter
being arranged between the illumination system and the color-separating system, characterized in
that the reflective display panel is a liquid crystalline display panel having pixels which can be
switched between a transparent state and a diffusing state, and a 8/4 plate is arranged between the
reflective portions of the pixels of the display panel and the polarizing beam splitter.
The references relied on by the examiner are:
Kobayashi et al. (Kobayashi) 5,305,126 Apr. 19, 1994
Hong 5,706,063 Jan. 6, 1998
Chiu et al. (Chiu) 5,786,934 July 28, 1998
(effective filing date Mar. 23, 1995)
Claims 1 and 3 through 5 stand rejected under 35 U.S.C. § 103(a) as being unpatentable over
Chiu in view of Kobayashi.
Claim 2 stands rejected under 35 U.S.C. § 103(a) as being unpatentable over Chiu in view of
Kobayashi and Hong.
Reference is made to the final rejection (paper number 17), the brief (paper number 21) and
the answer (paper number 22) for the respective positions of the appellants and the examiner.
OPINION
We have carefully considered the entire record before us, and we will reverse the
obviousness rejection of claims 1 through 5.
According to the examiner (final rejection, page 3):
2
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