New high performance plasma display driving circuit based on functional integration

Abstract

Although plasma display has many advantages such as self-emitting-based good color reproduction capability, wide dynamic contrast ratio, and fast visible conversion response by phosphor layer per sustaining pulse, it has been competing with other flat panel device desperately to capture TV consumer market share. To satisfy price expectations in the consumer electronic appliance market, it has become a key issue to develop a low-cost plasma display. As plasma display uses the plasma discharges for displaying information, it requires high power electronic circuitry covering the whole backside of the panel, which causes a large a large part of the plasma display cost. Thus, it becomes essentially necessary to reduce the cost of the driving circuit for surpassing other displays in cost competitiveness. To achieve low-cost plasma display, this dissertation suggests two new high performance plasma display driving circuits based on the functional integration. One is proposed for the full-bridge sustaining inverter of the three-electrode driving method and the other for newly developed the two-electrode driving technology. For the conventional full-bridge sustaining inverter, single energy recovery circuit with asymmetrical operation is proposed. Since the proposed circuit uses only one inductor and two switches without large auxiliary circuit, it shows a simpler structure, less mass, lower cost of production, and fewer devices. Moreover, it can fully change the panel voltage between-$\It{V_S}$ and $\It{V_S}$ with asymmetric energy recovery action without any excessive voltage stress of sustaining inverter and ensure the stable and uniform light emission from the PDP without voltage drop caused by the large discharge current during the transition time. Secondly, voltage source integrated driving waveform amplifier with energy recovery capability is proposed for the full-bridge sustaining inverter. Different from conventional driving circuit having multiple voltag...