公开(公告)号：JPH1096928A

公开(公告)日：1998-04-14

申请号：JP11724297

申请日：1997-05-07

Applicant: IBM

Inventor： PRAVIN CHAADARI ,  JAMES ANDREW REESHI ,  SHUI-CHII ALAN RIEN

IPC: C08G73/10 ,  G02F1/1337

Abstract: PROBLEM TO BE SOLVED: To provide a method for forming patterned alignment directions on an alignment surface for a liquid crystal display cell. SOLUTION: This cell is formed by forming a first alignment direction on the alignment surface, such as its polyimide surface. A second alignment direction is formed on the alignment surface. The first and second alignment directions are formed by various kinds of processing sequence. An example of the first sequence is a first step for polishing the alignment surface, then a second step of selectively exposing (preferably by using a mask) the alignment surface with respect to the processing selected from the group of the exposure to electromagnetic radiations and exposure to the particle beams. Another example of the sequence is a first step for exposing the alignment surface with respect to the processing selected from a group of the electromagnetic radiation and the particle beams, then a second step for selectively exposing (preferably by passing through mask) the alignment surface to the other beams.

公开(公告)号：JPH1096927A

公开(公告)日：1998-04-14

申请号：JP11716297

申请日：1997-05-07

Applicant: IBM

Inventor： PRAVIN CHAADARI ,  JAMES ANDREW REESHI ,  SHUI-CHII ALAN RIEN

IPC: C08G73/10 ,  G02F1/1337

Abstract: PROBLEM TO BE SOLVED: To provide a method for aligning liquid crystals on a polyimide surface exposed to low-energy and neutral argon ion beams. SOLUTION: The energy of incident ions is changed between 75eV and 500eV and the integrated current density is changed from 100μA/cm to 500mA/cm . The incident angle at which alignment is measured is changed between 10 deg. and 80 deg.. The pretilt angle of the liquid crystals is changed between 0 deg. and 8 deg. by contolling treatment condition. The degradation of the polyimide to introduce charge transfer is averted by operation with a low acceleration voltage.

公开(公告)号：JP2002023169A

公开(公告)日：2002-01-23

申请号：JP2001192418

申请日：2001-06-26

Applicant: IBM

Inventor： BUCHWALTER STEPHEN ,  CHRISTOS DIMITRIOS DIMITRACOPO ,  KAN-UKKU LEE ,  SHUI-CHII ALAN RIEN ,  SANPASU PARASSHUOZAMAN

IPC: G02F1/1337 ,  G02F1/1343

Abstract: PROBLEM TO BE SOLVED: To impart vertical alignment and domain formation to a homeotropic pixel element of a liquid crystal display technique by using a technique to form a self-organizing monomolecular film. SOLUTION: A substituted silane compound such as octadecyl silane is applied to a transparent conductive layer surface of such as indium tin oxide as a hydrolysable alcoholic solution and a molecular layer with thickness of essentially one molecule (the monomolecular film) is formed via a baking temperature cycle. One terminal group of the monomolecular film is bonded to the indium tin oxide surface and the other terminal group functions so as to influence molecular alignment and domain formation of a liquid crystal material.