Patent ID: 6191881
Filing Date: 2001-02-20
Classification: G02F,G11B

Abstract:
A variable focal length lens panel comprising:a transparent first substrate and a transparent second substrate;a circular transparent electrode provided on the first substrate at the center thereof;a plurality of annular transparent electrodes which are disposed outside the circular transparent electrode concentrically and narrowed in width and interval as they are directed outward;extension electrodes which extend crosswise outward from the circular transparent electrode across the plurality of annular transparent electrodes;an external terminal electrode disposed at a portion close to a periphery of the first substrate so as to connect respective outer ends of the extension electrodes with one another;a first alignment layer provided at least on an area where the circular transparent electrode and the annular transparent electrodes are formed;a transparent electrode provided on an entire surface of the second substrate, and a second alignment layer provided on the transparent electrode, wherein an alignment direction of the first alignment layer and that of the second alignment layer are parallel with each other;wherein the first substrate and the second substrate are kept at a given interval by gap members provided on an area outside an outermost electrode of the annular transparent electrodes with the transparent electrodes thereon facing each other, and the substrates are bonded to each other by a seal member provided on the external terminal electrode; anda nematic liquid crystal is sealed in a gap between the first substrate and the second substrate.