LIQUID CRYSTAL DISPLAY DEVICE
    2.
    发明专利

    公开(公告)号:JP2001228478A

    公开(公告)日:2001-08-24

    申请号:JP2001002426

    申请日:2001-01-10

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a full color liquid crystal display using a photoluminescence(PL) fiber. SOLUTION: New architecture simplifies an LCD manufacture process by substituting a photolithography step for color filter manufacture to a fiber spinning technique at low cost and with high throughput. The new LCD architecture has the power efficiency higher than a conventional LCD. Following structures are included in the three structures of the LCD device using a photoluminescence(PL) fiber array. The first structure having the PL fiber array located behind an LC shutter (to a user), the second structure having the PL fiber array located on the LC shutter, and the third structure where the PL fiber array in located in an LC cell outside. In one of the structures of these, the fiber not only emits light, but performs the polarization of incident light.

    8.
    发明专利
    未知

    公开(公告)号:DE2338281A1

    公开(公告)日:1974-02-21

    申请号:DE2338281

    申请日:1973-07-27

    Applicant: IBM

    Abstract: 1395678 Liquid crystal compositions INTERNATIONAL BUSINESS MACHINES CORP 4 July 1973 [3 Aug 1972] 31854/73 Heading C4X [Also in Division C2] To a nematic liquid crystal material is added an organic dopant which provides ions in which the charge is effectively distributed over several atoms and is shielded from the charge of the counterions by a non-poar shell, whereby the resistivity of the nematic material is reduced, and as described in relation to dynamic scattering materials, the threshold voltage is reduced and the cut-off frequency raised. In some cases the undoped material does not exhibit dynamic scattering. The dopant, preferably forming 0À01 to 5% by weight of the composition, may contain large organic ions, or be a precursor thereof, or may be a compound containing chelated alkali metal ions. In the latter class the chelating agent may be dicyclohexyl-18-crown- 6 ether such being reacted with any one of a number of alkali metal salts of organic anions, or the dibenzo-18-crown-6 ether analogues. The former class appears to consist of generally unrelated materials, e.g. hexaphenylethane; tetrabutylammonium tetraphenylforide; and quinhydrone. The dopant may also be tributylphosphine oxide lithium bromide or triphenylphosphine oxide lithium bromide.

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