Low-voltage operated AC plasma-display panels

Discharge Characteristics of Plasma Display Panels with SrCaO Protective Layer Manufactured Using “All-in-Vacuum” Process

“…3) A high-£ protective layer such as SrO,46) SrCaO, 4,5,7) or CaO 8) is then used to reduce the firing voltage. The problem is that these materials are highly reactive with H 2 O and CO 2 , and in the conventional manufacturing process, the protective layer, deposited in a vacuum chamber, is exposed to an air atmosphere.…”

“…A long dischargeaging process is then required to stabilize the firing voltage. 4) In order to keep the protective layer as clean as possible, we developed manufacturing equipment in which the panel is handled under vacuum after the deposition of the protective layer ("all-in-vacuum" process). We have reported the performance of the "all-in-vacuum" MgO-PDP, which requires a short aging time and has a low firing voltage, stable discharge (short statistical time lag), the same luminance, and the same luminous efficacy, compared with conventional MgO-PDP.…”

Lowering of the firing voltage and reducing of the discharge delay time in alternating current plasma display panels by a discontinuous spin-coated LaB6 film on the MgO protective layer

“…Materials used as a protecting layer in AC PDPs are required to have high ion-induced secondary electron emission which is beneficial for maintaining high plasma density and decreasing the discharge voltages (the firing and sustaining voltages) in the AC PDP cells. 3,4 Until now, MgO is most widely used as a surface protective layer owing to its low sputtering yield and large secondary a E-mail: dj78291@163.com electron emission yield, which can prolong the lifetime and lower the discharge voltages of AC PDPs. However, the discharge voltages of AC PDPs with a conventional MgO protective layer are still too high to permit the realization of standard integrated circuits.…”

Discharge analysis of SrO- and SrCaO-cathode PDP operated at lower voltage

“…One of our interests has been concerned with PDP operated by the cold cathode with a high secondary electron emission yield (high g i ). It has been widely known that high g i material is advantageous for lower breakdown voltage, and various chemically-active materials such as SrCaO have been applied to PDP [2][3][4]. The high g i material is also interesting in a plasma-physical point of view, since it drastically changes the plasma parameters such as electron temperature and plasma density due to the abundant secondary electron from cathode, and has a possibility to improve PDP performance.…”