Browse Prior Art Database

New Form of Liquid Crystal Display Spacer

IP.com Disclosure Number: IPCOM000123919D
Original Publication Date: 1999-Jul-01
Included in the Prior Art Database: 2005-Apr-05
Document File: 1 page(s) / 29K

Publishing Venue

IBM

Related People

Natsuyama, Y: AUTHOR

Abstract

Disclosed is an LCD (liquid crystal display) spacer with a cylindrical rather than spherical form that reduces variation of the cell gap and unnecessary movement of spacer. Figure 1 shows a spacer of the current type, which makes the first minimum space for the LCD cell gap, normally using a sphere five microns in diameter. Figure 2 shows an example of the disclosed new cylindrical spacer, which is created by cutting a fiber with a diameter of five microns into slices with a length of five microns. These are positioned as shown in Figure 3 or Figure 4, by scattering the new spacers in the same way as the current spacers. The case shown in Figure 3 is less likely to sink into an alignment layer or to move sideways than the current spacers, because the contact interface changes from a point to a line.

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New Form of Liquid Crystal Display Spacer

   Disclosed is an LCD (liquid crystal display) spacer with
a cylindrical rather than spherical form that reduces variation of
the cell gap and unnecessary movement of spacer.  Figure 1 shows a
spacer of the current type, which makes the first minimum space for
the LCD cell gap, normally using a sphere five microns in diameter.
Figure 2 shows an example of the disclosed new cylindrical spacer,
which is created by cutting a fiber with a diameter of five microns
into slices with a length of five microns.  These are positioned as
shown in Figure 3 or Figure 4, by scattering the new spacers in the
same way as the current spacers.  The case shown in Figure 3 is less
likely to sink into an alignment layer or to move sideways than the
current spacers, because the contact interface changes from a point
to a line.  The case shown in Figure 4 is much less likely to do so,
because the contact interface changes to a surface.  Therefore, an
LCD using the disclosed cylindrical spacers is expected to be more
reliable and more robust to pressure and vibration.