Improvement in Address Discharge Response of HD PDPs with Stripe Rib and Discharge Deactivation Film

Abstract

Stripe ribs make address discharge more stable than box ribs due presumably to the priming particles provided from vertically neighboring cells. Discharge deactivation film (DDF) of low material, which selectively covers an MgO surface so as to fold the relative bus lines, improves the address discharge response dramatically because DDF pushes the address discharge area closer to the surface discharge gap. A TiO2 under-layer for phosphor also significantly improves the response. Presumably the electrification characteristic of the layer, which may depends on the surface treatment onto the TiO2 grains, contributes much to the formation of an electric field for generating face-to-face address discharge. Using these in our 46-in. HD-PDP, Xe15%(by volume) is acceptable with respect to practical driving for TV use if the dielectric layer is arranged thinly to prevent extremely high sustain voltage. Thus white peak luminance and luminous efficiency of 1220 cd/m2 and 2.16 lm/W, respectively, can be achieved.

Improvement in luminance, luminous efficiency, driving margin, and operational lifetime of HD PDPs by using discharge deactivation film

“…Accordingly, its surface address discharge is triggered more quickly and thus D is the best in terms of address discharges. 1,2,4 The UL2 curves show no significant difference between B, C, and D. Although DDF lifts up the stripe rib from the MgO surface due to its thickness (1 µm or less), we found no specific problem of horizontal crosstalk discharge in D. Perhaps such a small thickness or lift-up hardly affects the horizontal crosstalk discharge.…”

“…This slope suggests that the box-rib structure in C had some difficulty with the occurrence of address discharges due to there being no space charge provided from vertically adjacent cells. 4 This problem with address discharges is also suggested by comparing curve LL2(C) with LL2(D). 1,2,4 In fact, a similar slope is also found in the LL1(B) curve but it still looks better than that in LL1(C).…”

“…4 This problem with address discharges is also suggested by comparing curve LL2(C) with LL2(D). 1,2,4 In fact, a similar slope is also found in the LL1(B) curve but it still looks better than that in LL1(C). This probably means that the vertical open space in the stripe-rib structure is more advantageous regarding address discharges.…”

“…For that reason, we previously proposed a new cell structure that employs DDF (discharge deactivation film). [1][2][3][4] Here, DDF is selectively deposited on the MgO surface around the boundaries of the neighboring display lines in such a manner that it envelops the bus electrodes in the plan view [see Fig. 2(d)].…”

“…This probably means that the vertical open space in the stripe-rib structure is more advantageous regarding address discharges. 4 Also, the LL1(D) curve is better than the LL1(B) one although both of them use a stripe-rib structure. This difference between B and D presumably comes from the fact that D had a smaller surface discharge area due to the existence of DDF as Figs.…”