New delta arranged cell configuration of AC plasma display “DIA‐PDP” for high luminous efficiency and high resolution

Abstract

SUMMARYA new delta arranged cell-configured AC plasma display (DIA-PDP) was proposed, and a prototype 46-inch diagonal panel was fabricated. The DIA-PDP has two features. The first feature is an improved luminous efficiency. This is possible because nondischarge cells are formed in the panel and a black layer is formed on these cells. Since the light from the discharge cells does not reach the nondischarge cells, even if a black layer is provided on the nondischarge cells, the panel reflectance can be reduced without lowering the luminance. When compared under the condition of a constant set reflectivity, the luminous efficiency improves. A 33% improvement over the conventional ratio was verified for the 46-inch panel. The second feature is improved vertical resolution. In the delta configuration, the subpixels are arranged at half the pitch of the scanning lines. By combining this configuration with an interlaced drive, the vertical resolution can be improved. To increase the size of a PDP using a lattice rib, we introduced a new rib forming technology and improved the exhaust conductance. Previously, the manufacturing steps increased to form the exhaust path in the lattice rib. In the new rib forming method, the exhaust conductance was successfully improved without increasing the number of manufacturing steps only for forming the crossing ribs in the nondischarge cells and by producing height differences caused by thermal shrinkage.

Enhancement of Optical Emission by Floating Electrodes in a Planar Microdischarge Cell

“…In this study, a new planar cell structure was developed, which had floating electrodes on a dielectric layer in the Position (µm) 2e 10 1.08 2.16 3.24 4.32 5.4 6.48 7.56e 13 [interval; 5.4x10 12 2e 11 2.82 5.62 8.42 1.12 1.4 1.68 1.96e 14 [interval; 1.4x10 13 inside of a microdischarge cell to improve the optical emission intensity. The effect of the floating electrodes was investigated with experiments and by a two-dimensional fluid simulation.…”

“…5) One of the most critical issues in current photonic devices is the improvement of the luminous efficiency and/or discharge efficiency. There have been several approaches so far for the optimization of cell structures in the field of plasma display panels (PDPs), such as a structure with a grooved dielectric layer between the electrodes, [6][7][8][9] a structure with vertically raised bus electrodes, 10) a structure with a long electrode gap, 11) a structure with a delta array of discharge cells, 12) and a structure with horizontal counter electrodes. 13) In the photonic device field, new structures fabricated on semiconductor, ceramic, and multilayer metal/ polymer substrates have been developed, 14,15) which have cross-sectional dimensions much smaller than those of current PDP cells.…”

DIA-PDP with high luminous efficacy and increased vertical resolution

“…A new ACPDP cell configuration referred to as DIA-PDP was developed to increase the vertical resolution of a panel without increasing the production cost. 5,6 The trio subpixel arrangement is popular in ACPDPs. This arrangement places the R, G, B subpixels horizontally in the same line.…”