In this paper, we propose the new reset waveform which shows high dark‐room contrast‐ratio and robustness for cross talk. We apply a ramp pulse to the address electrode after the erase X ramp pulse. And a constant bias voltage is applied to X electrode during the Y rising‐falling ramp and the address period. Using this method, we achieved a great dark‐room contrastratio 2750:1. However, the address minimum voltage was increased about 17∼37V compared with the conventional ramp reset method. We could reduce the minimum address voltage through the waveform optimizing. As a result, when VSB is −30V, we could reduce the address minimum voltage about 14∼28V and improve the dark‐room contrast‐ratio3000:1.

Articles you may be interested inThe effect of electrode tilt angle on the characteristics of coplanar dielectric barrier discharges with Xe-Ne mixtures New combination of a three-component gas, Ne-Xe-Ar, for a high efficiency plasma display panelThe improvement of luminous efficiency is one of the most important issues in making a plasma display into a large flat panel device. Accordingly, a new combination of a four-component gas, He-Ne-Xe-Ar, is proposed in order to achieve a high luminous efficiency in color plasma display panels ͑PDP͒. The densities of 32 species and electron temperature were calculated using a zero-dimensional simulation. The results were then compared with measurements of brightness and luminous efficiency to identify the optimum mixing condition of He͑7͒: Ne͑3͒-Xe͑4%͒-Ar gas for a color PDP. The reaction mechanism was computationally analyzed to comprehend the discharge mechanism in He-Ne-Xe-Ar as well as in He-Ne-Xe. By simulation, the maximum peak point of the Xe*( 1 S 4 ) state was obtained between a 0.1% and 0.5% Ar mixing ratio and the maximum luminous efficiency was measured with a 0.3% Ar mixing ratio in the PDP. As a result, the luminous efficiency was considerably improved ͑about 20%͒ with a 0.3% Ar addition, compared with the conventional He-Ne-4% Xe mixing gas.

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We measured 3-dimensional images of the light emitted from plasma display panel(PDP) by using newly proposed scanned point detecting method (SPD M). The SPDM has the point detector with pinhole. The light emitted from PDP cell at the in-focus position can pass through the pinhole and be collected by detector. But, the light emitted from PDP cell at the out-of-focus positions is focused on the front of or the behind of the pinhole. That is, it is intercepted by the pinhole.We could analyze the characteristic of 3-dimensional discharge in PDP cell from the measured 3-dimensional light emission distributionbySPDM. From 3-dimensional measurement, we know that as the sustain voltage increases, the intensity of detected light increases and the position of the maximum intensity moves to the outside from the electrode gap. The emitted light distributions on the ITO electrode show the stronger light intensity at the near to the electrode gap than at the outside.Also, we know that 2-dimensional simulations under the assumption that neglects the variation of parallel direction with electrode do not agree with 3-dimensional experiment results that consider the variation of parallel direction with electrode.

Articles you may be interested inInfluence of gas pressure and applied voltage on Xe excimer radiation from a micro dielectric barrier discharge for plasma display panel New combination of a three-component gas, Ne-Xe-Ar, for a high efficiency plasma display panel