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LIQUID CRYSTAL LAMINAR FILLING BAFFLES

IP.com Disclosure Number: IPCOM000023305D
Original Publication Date: 1977-Jun-30
Included in the Prior Art Database: 2004-Mar-29
Document File: 2 page(s) / 202K

Publishing Venue

Xerox Disclosure Journal

Abstract

The filling of liquid crystalline electro-optic cells is typically accompanied by turbulent flow which renders the liquid crystalline material filled into the cell less than visually pleasing. To overcome these visual deficiencies in filled liquid cry-stalline electro-optic cells, it is proposed that baffles be evaporated onto a substrate prior to the use of the substrate in fabrication of the cell. The evaporated baffles are con-structed to a thickness equal to that desired for the liquid crystalline layer in the completed cell. The spacing and con-figuration of the baffles is selected to return turbulently flowing liquid crystalline material to laminar flow for the entire region between entrance and exit baffles so that turbulent flow originating between the baffles is propagated only in parallel lines. Consequently, the liquid crystalline material is rendered more visually acceptable. Undesirable striation alignment is minimized.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

LIQUID CRYSTAL LAMINAR FILLING Proposed Classification
BAFFLES
U.S. Cl, 350/16OLC
Ivo P. Gates Int. Cl. G02b 5/23
Joel N. Pollack

The filling of liquid crystalline electro~optic cells is
typically accompanied by turbulent flow which renders the
liquid crystalline material filled into the cell less than
visually pleasing.

To overcome these visual deficiencies in filled liquid cry~
stalline electro-optic cells, it is proposed that baffles be
evaporated onto a substrate prior to the use of the substrate
in fabrication of the cell. The evaporated baffles are con~
structed to a thickness equal to that desired for the liquid
crystalline layer in the completed cell. The spacing and con~
figuration of the baffles is selected to return turbulently
flowing liquid crystalline material to laminar flow for the
entire region between entrance and exit baffles so that
turbulent flow originating between the baffles is propagated
only in parallel lines. Consequently, the liquid crystalline
material is rendered more visually acceptable. Undesirable
striation alignment is minimized.

Volume 2 Number 3 May/June 1977 61

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Page 2 of 2

                   XEROX DISCLOSURE JOURNAL
62 Volume 2 Number 3 May/June 1977

[This page contains 1 picture or other non-text object]