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Full-Color Plasma Display Panel Disclosure Number: IPCOM000101372D
Original Publication Date: 1990-Aug-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 2 page(s) / 79K

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A simple low-cost color plasma panel is described for display applications.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Full-Color Plasma Display Panel

       A simple low-cost color plasma panel is described for
display applications.

      Fig. 1 shows in cross-section a color face plate for the color
plasma display to be described.  Color is achieved by depositing an
array of transparent color filter elements 1, 2, 3 (corresponding to
red, green, and blue transmitting filter elements, respectively) on
the inside surface of the front (viewing side) glass plate 6.  These
filter elements are surrounded by a non-transparent mask 4 (much like
the black matrix used in a color CRT shadow mask), which can be
deposited either prior to or after the filter element deposition.
These filter elements are then covered with a layer of white-emitting
phosphor 5.  The phosphor selection might be made to optimize the
color transmission of the filters.  For example, P40 (a line-emitting
white phosphor) could be matched with narrow band transmitting
filters, while P4 (a broadband emitting white phosphor) might be
matched with broadband transmitting filters.  The phosphor excitation
may be either from UV photons or from gas discharge electrons
depending upon the gas discharge cell design and gas selected.
Either an AC or a DC gas discharge cell may be used.

      Fig. 2 illustrates an AC gas discharge panel configuration
which may be used to excite the faceplate shown in Fig. 1.  Two
orthogonal sets of electrodes 10, 12 are insulated by a dielectric
layer 14.  Via holes 16 are formed in layer 14 so that electrodes 10
may be connected thereby to conductive pads 18 lying on the same
level as electrodes 12.  The conductive pads 18 may be formed at the
same time that the top set of electrodes 12 are formed.  A surface
insulation lay...