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A new structure, combined with the use of a high partial pressure of Xe gas, is proposed to achieve a high luminous ecacy and to improve the addressability. The difference in the discharge characteristics between the conventional and the proposed in-bus structures were studied with a twodimensional uid code. The proposed structure showed higher values for the electron, Xe (3P1), and wall charge near the center of discharge cell than the conventional structure. We manufactured 7.500-diagonal panels to measure the luminance, the ecacy and the discharge ignition delay. With a Xe8 %-Ne mixture of gas, both structures showed very similar ecacies and luminances. However, with a Xe14 %-Ne mixture of gas, the in-bus structure showed a 5 % higher ecacy and luminance than the conventional structure. To evaluate the driving characteristics,we measured the lags in the discharge ignition during the address period. The total delay of the in-bus structure was 30  40 % less than total lag of the conventional structure.