• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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• pp.339-342
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• 2003

Main PDP panel efficacy improvement factors are discussed. A large panel efficacy improvement can be obtained through a combination of discharge efficiency improvement and phosphor improvement. Important design elements are a high Xe-content gas mixture, the application of a $TiO_2-layer$, and a new green phosphor with little saturation at high VUV-load. In a 4-inch color test panel with a conventional stripe-type cell configuration a white efficacy of 4.4 lm/W and a luminance of 5000 $cd/m^2$ is obtained for sustaining at 250V in addressed condition.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 추계종합학술대회 논문집(2)
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• pp.237-240
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• 2000

It is expected that there will be the regulation for limiting the amount of Hg content in cold cathode fluorescent lamp (CCFL) for LCD backlight system. Now it is necessary to develop mercury-free backlight system. The mercury-free CCFL coated with PDP phosphors was fabricated and evaluated. The CCFL filled with Xe and Ne showed 4500 ㏅/$m^2$ with efficiency of 13 lm/W.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2002년도 학술대회논문집
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• pp.191-196
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• 2002

In this paper we introduce novel electrode structure for high efficiency discharge. We operate discharge tube under the 0.16 torr pure Xe and apply the sinusoidal wave power to the lamp with 60kHz. We measure the electric power dissipation, plasma parameters, and 828 nm IR intensity. From these data we determine the discharge efficiency, IR intensity/watt, EEDF(Electron energy distribution function). As a result we obtain that the novel electrode structure has better performance in efficiency than that of conventional external electrode system. Also we determine the EEDF for each type of electrode structure by Boltzmann stover, EELNDIF code. The result of Boltzmann equation solving show that the noble electrode system has many high energy electrons compared with the conventional system.

• 한국콘텐츠학회논문지
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• 제6권12호
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• pp.163-168
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• 2006

LCD의 배면광원으로 활용될 무수은 형광램프를 제작한 다음, 전기 광학적 특성을 평가하였다. PDP 형광체, nitro-cellulose 및 n-butyl acetate를 혼합하여 유리관 내부에 얼룩 없이 균일하게 코팅하였다. 또 $550^{\circ}C$에서 20 분 동안 소성하였고, 가스혼합장치를 이용하여 $10^{-6}$ torr까지 배기시킨 다음 방전가스를 주입하여 형광램프를 완성시켰다. 형광체 두께 및 유리관 직경 등을 변화시켜 제작, 평가한 결과 이들 변수들에 대하여 최적의 값을 찾아 낼 수 있었다. 또한 Ne+Xe 방전가스를 주입하여 제작된 형광램프에 75 kHz의 정현파 전압을 공급시킨 결과 휘도 $6,270cd/m^2$, 발광효율 13 lm/W를 얻었다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2006년도 영호남 합동 학술대회 및 춘계학술대회 논문집 센서 박막 기술교육
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• pp.86-90
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• 2006

Discharge of the flat lamp lighting source research are requested very much. For improving brightness, life time, efficiency of flat lamp, plasma diagnosis of the f1at lamp lighting source to understand property of lighting source is very important. Distance of discharge electrode is 5.5mm and width is 16.5mm, we have measured electron temperature and electron density measured with single Langmuir probe in flat lamp. We have tested the discharge from 100 Torr to 300 Torr pressure. The pulse is rectangular pulse with frequency 20kHz and duty ratio 20%. In result, electron temperature decreases and electron density increase as increase the gas pressure and electron temperature decreases and electron density increase as increase the voltage.

• 대한전자공학회논문지TE
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• 제37권1호
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• pp.12-17
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• 2000

본 논문은 가스의 방전 현상으로부터 발생되는 자외선을 이용하는 평판 형광 램프의 주파수 특성에 대하여 연구하였다. 램프는 절연층, 형광층, 가스층으로 구성된다. 램프의 특성에서 불꽃 전압과 휘도 균일 전압은 주파수의 증가에 따라 감소하였다. 이것은 가스 갭내에서의 공간 전하 효과로 설명이 가능하였다. FFL의 휘도는 700Vrms, 80 kHz의 구동 조건에서 2700cd/$m^2$ 을 얻었으며, 최대 휘도 효율은 5 lm/W를 보였다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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• pp.605-608
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• 2007

The discharge characteristics of the face-to-face sustain electrode structure employing auxiliary address pulse are investigated under a sustain driving frequency of 20 kHz and various auxiliary address pulse widths (500 ns, $1{\mu}s$, $2\;{\mu}s$) in the 6-in. test panel (42-in. Full HD grade) with a pressure of 450 Torr and a 4 % Xe-content. The luminance and the luminous efficiency at the auxiliary address pulse width of 500 ns are improved more than these of $1\;{\mu}s$ and $2\;{\mu}s$. At the auxiliary address pulse width of 500 ns, the luminous efficiency shows about 0.96 lm/W at the auxiliary pulse of 90 V and the sustain voltage of 260 V.

• Journal of Information Display
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• 제12권1호
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• pp.29-35
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• 2011

In this study, plasma display panels with three different cell volumes were prepared by changing the spaces between the vertical barrier ribs into two and three times the reference structure. The discharge gap and area of the segmented ITO electrode were the same for the three cases, and Ne.20%Xe gas was used. The luminance and luminance efficiency were measured using applied voltage variations. The time evolution and intensity distribution of the infrared, which are related to the vacuum ultraviolet, were observed via intensified, charged, coupled device, and the visible-light intensity profiles were observed using PR-900 to analyze the discharge phenomena in the discharge cell.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.II
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• pp.1195-1198
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• 2005

The improvement of efficiency is the one of the most important part in AC PDPs . To achieve high efficiency, high VUV emission efficiency and High ion induces secondary electron emission coefficient are needed. We have measured the emission spectra of vacuum ultraviolet rays and ion induced secondary electron emission coefficient of MgO protective layer in surface discharge AC-PDP with binary and ternary gas mixtures. We have investigated electro-optical characteristics of AC-PDPs to optimum gas mixture for high efficient.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2000년도 제1회 학술대회 논문집
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• pp.169-170
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• 2000

The conventional AC PDP has a relatively low efficiency which is close to 1.5 lm/W. If the AC sustain period is replaced by the RF sustain period, due to oscillating and low electric field, almost 60% of the supplied energy is spent by Xe excitation [1]. The efficiency of RF PDP can be $4{\sim}5$ times higher than that of AC PDP. In this paper, we will present the RF PDP that is a new type of PDP. A new display method in PDP using RF pulses is suggested and applied on a 4-inch-diagonal Panel (hereinafter 4" panel). Even though there were many researches in RF discharge, there was not enough research for display application. Now we propose the RF PDP that is a new display field and we will expect to do more research in this field.