• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.1311-1312
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• 2008

차세대 대형 FPD(Flat Panel Display)로 각광받는 PDP(Plasma Display Panel)는 cost, 소비전력, 효율 등의 문제점이 있다. 본 연구에서는 저가격화를 실현하기 위하여 종래 사용되었던 투명전극인 ITO(Indium-Tin Oxide)전극 대신 금속(Ag) 전극만을 사용하여 공정을 간소화한 Fence 전극구조를 제안하였다. 그리고 소비전력의 감소와 효율의 향상을 위해 격벽쪽의 전극을 제거하여 방전경로상의 저항을 증가시켜 방전전류를 감소시키는 동시에 하전입자의 격벽손실을 줄이는 4-inch Test Panel을 제작하여 전기광학적 특성 실험을 하였다. 제안한 구조의 돌기길이를 변화시켜 방전개시전압, 휘도, 소비전력, 효율 등을 측정, 비교하여 power가 14%감소하여 효율을 11% 향상 시킬 수 있었다.

• Proceedings of the Korean Vacuum Society Conference
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• 1999.07a
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• pp.227-227
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• 1999

Plasma display panel(PDP) is a leading technology for large-area flat panel displays. A current issue in operating the PDP cell is that the efficiency of the PDP cell is very low. To increase the efficiency of the PDP cell, the visible light needs to be maximized and the power consumption minimized. Since the excited xenons are related to the production of the visible light, it is important to optimize the cell geometry and the gas composition that produce the excited xenons more efficiently. A 2D-fluid code (FL2P) is developed and used to simulate the plasma dynamics and the radiation transport in the PDP cell. The cell is optimized with the code for various operating conditions and cell dimensions such as the voltage pulse, electrode length, electrode spacing, gap size, dielectric constant, gas mixture ratio, pressure, and pulse duration.

• 한국정보디스플레이학회:학술대회논문집
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• 2004.08a
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• pp.59-62
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• 2004

We investigated the effect of Xe content variation on the luminous efficiency of two different sub-pixel types, i.e., segmented electrode in delta color arrayed enclosed sub-pixel (SDE) and conventional stripe barrier type, in an ac plasma display panel through three-dimensional numerical simulations. The conventional cell type was found to have higher VUV generation efficiency as compared with that of SDE structure, but as the Xe content increased, the SDE type showed higher improvements in efficiency due to the lower plasma loss to the barrier walls.

• The Transactions of the Korean Institute of Power Electronics
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• v.11 no.6
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• pp.494-501
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• 2006

In this paper, a novel energy recovery circuit for AC PDPs(Plasma Display Panels) with reduced sustain voltage is proposed to improve the performance of conventional circuits such as TERES(TEchnology of REciprocal Sustainer). In the TERES circuit, the sustain voltage is the half of general sustaining driver for AC PDPs, however, there is no energy recovery circuit. In the proposed circuit, the efficiency is heightened by installing in energy recovery circuit and the loss of switching device is reduced by performing the zero voltage switching or zero current switching. Although the energy recovery circuit is added, the number of active switching elements of the proposed circuit is the same as that of the TERES circuit. The operations of the proposed circuit are analyzed for each mode and its validity is verified by the simulations and experimentation.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.24 no.2
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• pp.106-112
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• 2010

In order to compete with other flat display devices such as Liquid Crystal Displays (LCDs) and organic light emitting diodes (OLEDs), Plasma Display Panels (PDPs) require to have high performances like high image quality, low power consumption and high speed driving. In this paper, Fe doped MgO protective layer was introduced for higher performance. Both the surface characteristics of the deposited thin films and the electro-optical properties of 4 inch test panels were investigated. It has been demonstrated experimentally that ac PDP with Fe doped MgO protective layer has lower discharge voltage than that of undoped MgO film, which corresponds to measured secondary electron emission coefficients. The crystallinity and surface roughness of thin films were determined by XRD patterns and AFM images. In addition, ac PDP with Fe doped MgO protective layer has improved address discharge time lag for high speed driving.

• Proceedings of the Korean Vacuum Society Conference
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• 1997.07a
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• pp.173-176
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• 1997

A numerical analysis of the micro-discharge in an AC pplasma dispplay cell has been made using time-deppendent, 2-dimensional multi-fluid equations to understand the discharge pphysics of He-Xe discharge. The time deppendent distribution of the electron tempperature, densities of electrons, various ions and excited sppecies, and the effects fo the wall charge accumulated on the dielectric surface are obtained and comppared with the results of direct observation of time deppendent behavior of VUV and visible sppectra from single discharge cell observed using a gated, image intensified CCD to elucidate the discharge physics.

• Proceedings of the Materials Research Society of Korea Conference
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• 2002.11a
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• pp.40-40
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• 2002

• Proceedings of the KIEE Conference
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• 2003.10a
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• pp.170-173
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• 2003

The driving method is one of the most important factors of PDP, so various driving methods have been developed to improve the duality of PDP Nowadays, most of PDPs apply to ADS (Address and Display period Separated) driving method. In this paper, a new driving method that divides scan lines into multi-Blocks is suggested. The proposed driving method in this paper can drive 14 sub-fields per 1 TV field in SD panel, 16 sub-fields per 1 TV field in HD panel. And sufficient Address margin can be obtained.

• Proceedings of the Korean Society Of Semiconductor Equipment Technology
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• 2005.05a
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• pp.192-200
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• 2005

A high speed address recovery technique for AC plasma display panel(PDP) is proposed. By removing the GND switching operation, the recovery speed can be increased and switching loss due to GND switch also becomes to be reduced. The proposed method is able to perform load-adaptive operation by controlling the voltage level of energy recovery capacitor, which prevents increasing inefficient power consumption caused by circuit loss during recovery operation. Thus, th e technique shows the minimum address power consumption according to various displayed images, different from prior methods operating in fixed mode regardless of images. Test results with 50' HD single- scan PDP(resolution : $1366{\times}768$) show that less than 350ns of recovery time is successfully accomplished and about $54\%$ of the maximum power consumption can be reduced, tracing minimum power consumption curves.

• Proceedings of the KIPE Conference
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• 2006.06a
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• pp.88-90
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• 2006

Conventional sustaining driver (SD) of plasma display panel (PDP) employing auxiliary circuits on both side of a H-bridge inverter increases volume of PDP with cost. To solve this problem, a new single sustaining driver (SSD), which utilize only one side of auxiliary circuit is proposed. Moreover, using the voltage stress reduction technique (VSRT), the proposed SSD effectively reduces switch voltage stress with a simple structure.