Browse Prior Art Database

Thin Film Transistor/Liquid Crystal Display Pixel Design with Advanced CS Line Structure

IP.com Disclosure Number: IPCOM000117321D
Original Publication Date: 1996-Feb-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 97K

Publishing Venue

IBM

Related People

Fujii, Y: AUTHOR [+2]

Abstract

Disclosed is a pixel structure, for Thin Film Transistor/Liquid Crystal Display, which has an independent subsidiary capacity line designed so that the minimum distance from the subsidiary capacity line to the upper gate line is equal to it to the lower gate line.

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Thin Film Transistor/Liquid Crystal Display Pixel Design with Advanced
CS Line Structure

      Disclosed is a pixel structure, for Thin Film Transistor/Liquid
Crystal Display, which has an independent subsidiary capacity line
designed so that the minimum distance from the subsidiary capacity
line to the upper gate line is equal to it to the lower gate line.

      The Figure shows the example of this pixel structure.  Usually,
one pixel consist of one gate line for the transistor and one
subsidiary capacity line to hold the pixel voltage.  These two lines
are made by same metal layer, however each line has a completely
different function.  Therefore, if these two lines are shorted by
contamination etc., that display panel would have defects.  To
minimize this short defect, this pixel is designed so that the
minimum distance between the subsidiary capacity line and the upper
gate line for the upper pixel (A) is equal to the distance between
the subsidiary capacity line and the lower gate line for the own
pixel (B) as shown in the Figure.

      This structure can be also used for the system that there are
two kinds of line mutually and it is not expected to short each
other.