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    METHOD FOR ASSEMBLING STRESSLESS LIQUID CRYSTAL CELL AND ITS DEVICE
    2.
    发明专利
    METHOD FOR ASSEMBLING STRESSLESS LIQUID CRYSTAL CELL AND ITS DEVICE 失效

    公开(公告)号：JP2000019534A

    公开(公告)日：2000-01-21

    申请号：JP12546099

    申请日：1999-05-06

    Applicant: IBM

    Inventor： ISTBAN ROBAS ,  MINFA RUU ,  YANG KEI-HSIUNG

    IPC: G02F1/1339

    Abstract: PROBLEM TO BE SOLVED: To provide a device and a method for assembling a LCD device having no spacer within its display region and being stressless throughout its cell. SOLUTION: A method for assembling a liquid crystal display device equipped with a pair of substrates combined with each other via a sealing member and liquid crystal inserted between the substrates comprises a step for arranging plural spacers 320 within a region of the sealing member between the substrates, a step for positioning a frame 350 with the sealing member and arranging the frame 350 on the outer surface of the respective substrates and a step for pressurizing each of the frame 350 so that an area corresponding to the display region obtain a uniform cell gap practically without being pressurized.

    REFLECTION-TYPE LIGHT BULB AND PROJECTING DEVICE
    3.
    发明专利
    REFLECTION-TYPE LIGHT BULB AND PROJECTING DEVICE 失效

    公开(公告)号：JP2000258764A

    公开(公告)日：2000-09-22

    申请号：JP2000052801

    申请日：2000-02-29

    Applicant: IBM

    Inventor： HO KENNETH C ,  LU MINHUA ,  ROSENBLUTH ALAN E ,  YANG KEI-HSIUNG

    IPC: G09G3/36 ,  G02B27/28 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/139 ,  G03B21/28 ,  G09G3/20 ,  H04N9/31

    Abstract: PROBLEM TO BE SOLVED: To obtain a light bulb containing a twisted nematic liquid crystal(LC) layer in which the contrast and efficiency are improved and visibility of spacer posts in a black state is decreased by forming a reflection electrode with its edges parallel or perpendicular to the director axis of liquid crystal molecules when the director axis is projected on the surface of a back face. SOLUTION: A reflection pixel electrode 10 is formed on the lower side of a LC layer 4. The general alignment of the LC molecules is shown as a series of arrows from an arrow 2 on the upper face of the LC layer 4 to the arrow 3 on the lower face. The twisting orientation of the arrows from the upper part to the lower part represents the twist of the LC. The axis of the LC molecule and the rubbing direction on the lower substrate 6 are aligned along the edge of the pixel electrode 10 except for a small pretilt angle of the molecules on the back face. The polarization direction of the input polarized light is parallel or perpendicular to the LC director projected on the upper substrate. The LC director having specified depth in the LC is slightly tilted from the back face, which means that the LC director is oriented in the direction in which the refractive index for abnormal rays is minimum or maximum.

    REFLECTIVE LIQUID CRYSTAL CELL FREE FROM FLICKER
    4.
    发明专利
    REFLECTIVE LIQUID CRYSTAL CELL FREE FROM FLICKER 失效

    公开(公告)号：JPH10206845A

    公开(公告)日：1998-08-07

    申请号：JP740198

    申请日：1998-01-19

    Applicant: IBM

    Inventor： LU MINHUA ,  YANG KEI-HSIUNG

    IPC: G02F1/1335 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/135 ,  G02F1/136 ,  G02F1/1362 ,  G09F9/30

    Abstract: PROBLEM TO BE SOLVED: To obtain higher reflectivity and the exactness of a gray scale display to eliminate the sensitive flickering over the entire part of a display panel by providing the liquid crystal display cell with a passive layer which is disposed on reflective electrode layer and is disposed between a liquid crystal material and the reflective electrode layer. SOLUTION: The pass layer 50 is formed on a reflective metallic layer 32 functioning as a display electrode as well and is disposed between the reflective metallic layer 32 and an LC medium 36. The passive layer 50 consists preferably of silicon oxide. The reflective metallic layer 32 preferably contains aluminum (or aluminum alloy) or silver (or silver alloy). The silicon oxide passive layer 50 may be adhered by using a plasma enhanced chemical vapor deposition method, atm. chemical vapor deposition method, low-pressure chemical vapor deposition method, etc. The silicon oxide passive layer 50 may be prepd. by immersion into a soln. contg. chemicals, such as ethyl orthosilicate. The silicon oxide passive layer 50 is formed by pulling up the substrate from the soln. and baking the substrate.

    IMPROVING THE STABILITY OF ION BEAM GENERATED ALIGNMENT LAYERS BY SURFACE MODIFICATION
    5.
    发明申请
    IMPROVING THE STABILITY OF ION BEAM GENERATED ALIGNMENT LAYERS BY SURFACE MODIFICATION 审中-公开
    通过表面改性改善离子束生成对准层的稳定性

    公开(公告)号：WO02057839A3

    公开(公告)日：2003-03-13

    申请号：PCT/US0144989

    申请日：2001-11-30

    Applicant: IBM

    Inventor： CALLEGARI ALESSANDRO C ,  CHAUDHARI PRAVEEN ,  DOANY FUAD E ,  DOYLE JAMES P ,  GALLIGAN EILEEN A ,  HOUGHAM GARETH G ,  GLOWNIA JAMES H ,  LACEY JAMES A ,  LIEN SHUI-CHIH ,  LU MINHAU ,  ROSENBLUTH ALAN E ,  YANG KEI-HSIUNG

    IPC: B01J19/12 ,  C01B31/02 ,  C23C14/48 ,  C23C14/58 ,  G02F1/1337

    CPC classification number: G02F1/13378

    Abstract: A method for preparing a alignment layer surface provides a surface on the alignment layer. A chemically modified surfae [117] is formed as a result of quenching and/or ion beam treatment in accordance with the present invention, and reactive gas is introduced to the ion beam to saturate dangling bonds on the surface. Layer [117] is now substantially free from dangling bonds and free radicals which could degrade properties of a liquid crystal display. Now, a substrate [101] is formed for use in a liquid crystal displax device. Another method for preparing an alignment layer. The surface is bombarded with ions and quenched with a reactive component to saturate dangling bonds on the surface.

    Abstract translation: 制备取向层表面的方法提供了取向层上的表面。 作为根据本发明的淬火和/或离子束处理的结果形成化学改性的表面[117]，并且将反应性气体引入到离子束中以饱和表面上的悬挂键。 层[117]现在基本上没有可能劣化液晶显示器性质的悬挂键和自由基。 现在，形成用于液晶置换装置的基板[101]。 制备取向层的另一种方法。 表面用离子轰击并用反应性组分淬火以使表面上的悬挂键饱和。

    SELF COMPENSATION TYPE TWIST NEMATIC MODE FOR REFLECTION LIGHT VALVE
    6.
    发明专利
    SELF COMPENSATION TYPE TWIST NEMATIC MODE FOR REFLECTION LIGHT VALVE 失效

    公开(公告)号：JPH1090731A

    公开(公告)日：1998-04-10

    申请号：JP14369197

    申请日：1997-06-02

    Applicant: IBM

    Inventor： YANG KEI-HSIUNG

    IPC: G02F1/137 ,  C09K19/02 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/1337 ,  G02F1/136 ,  G02F1/139 ,  G09F9/35

    Abstract: PROBLEM TO BE SOLVED: To provide a self compensation type twist nematic mode having a low operational voltage, high optical efficiency and a relatively large allowable error related to non-uniformity of a cell gap by containing a twist nematic liquid crystal with respectively specified whole twist angle and dΔn/λ and a means outputting an incident beam having a specified polarization direction. SOLUTION: This mode contains a twist nematic liquid crystal cell 100 with the whole twist angle of 50-75 deg. and the dΔn/λof 0.4-0.8 and the means outputting the incident beam 8 having the polarization direction substantially bisecting the whole twist angle or having the polarization direction substantially vertical to the bisector of the whole twist angle. In such a constitution, the twist nematic liquid crystal cell 100 with the twist angle of e.g. 60-65 deg. is used, and the polarization direction of the incident beam 8 bisects the twist angle of the cell 100. This saturated voltage is nearly 3V or below, and the low level of this saturated voltage is particularly useful for heightening resolution and reducing a cost.

    8.
    发明专利
    未知

    公开(公告)号：DE3586552T2

    公开(公告)日：1993-04-08

    申请号：DE3586552

    申请日：1985-06-11

    Applicant: IBM

    Inventor： YANG KEI-HSIUNG

    IPC: G02F1/133 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/139 ,  G09G3/36 ,  G11B7/0055 ,  G02F3/00

    Abstract: A liquid crystal storage device includes a smetic phase liquid crystalline medium (24) in spaced relationship with at least three separated electrodes, the first (12) of which provides a ground plane and is in contact with the liquid crystal medium, the second electrode (14), spaced from the first electrode, is arranged in a mesh-like or finger electrode configuration (14A, 14A), being likewise in contact with the liquid crystal medium and the third electrode (18) is spaced by a dielectric medium (16) from the second electrode (14), such third electrode being in either orthogonal or parallel relationship with the second electrode. Voltages are selectively applied to each of the second and third electrodes such that the stable stage of the liquid crystalline layer is changed from the ordered (homeotropic) or clear state, to the disordered (focal conic) or dark state.

    9.
    发明专利
    未知

    公开(公告)号：DE3586552D1

    公开(公告)日：1992-10-01

    申请号：DE3586552

    申请日：1985-06-11

    Applicant: IBM

    Inventor： YANG KEI-HSIUNG

    IPC: G02F1/133 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/139 ,  G09G3/36 ,  G11B7/0055 ,  G02F3/00

    Abstract: A liquid crystal storage device includes a smetic phase liquid crystalline medium (24) in spaced relationship with at least three separated electrodes, the first (12) of which provides a ground plane and is in contact with the liquid crystal medium, the second electrode (14), spaced from the first electrode, is arranged in a mesh-like or finger electrode configuration (14A, 14A), being likewise in contact with the liquid crystal medium and the third electrode (18) is spaced by a dielectric medium (16) from the second electrode (14), such third electrode being in either orthogonal or parallel relationship with the second electrode. Voltages are selectively applied to each of the second and third electrodes such that the stable stage of the liquid crystalline layer is changed from the ordered (homeotropic) or clear state, to the disordered (focal conic) or dark state.

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