Appeal No. 95-3285
Application 07/984,427
Representative claim 1 is reproduced below:
1. A method of addressing a liquid crystal cell having a
co-ordinate array of pixels, wherein data for refreshing the cell
is compared with the data existing prior to refresh to determine
those pixels which require to have their states changed, and
wherein those pixels are accessed by developing a positive, or
negative, electric potential difference across those pixels,
according into which state they are to be changed, for a
predetermined period of time before re-establishing a zero
potential difference, whereby no pixel is consecutively accessed
twice by the same polarity of potential difference.
The following references are relied on by the examiner:
Kawakami et al. (Kawakami) 4,062,626 Dec. 13, 1977
Kaneko (Japanese Kokai)2 2-217,893 Aug. 30, 1990
Claims 1 to 5, 8 to 10 and 13 to 17 stand rejected under
35 U.S.C. § 103. As evidence of obviousness, the examiner relies
upon Kaneko in view of Kawakami.
We refer to the briefs and the answers for the respective
positions of the appellants and the examiner.
OPINION
We reverse the rejection of all claims on appeal.
According to Kaneko, the prior art arrangement in Figures
5 to 7 as discussed in this reference compares incoming data and
current data for each address of the display for each refresh or
Our understanding of this reference is based upon a translation2
provided the Scientific and Technical Information Center of the Patent and
Trademark Office. A copy of the translation is enclosed with this decision.
2
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