• 한국정보디스플레이학회:학술대회논문집
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• 2007.08a
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• pp.33-36
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• 2007

We performed a discharge analysis on ac plasma display panel through the numerical simulation of the EF (Energy Fluid) model using the electron's energy equation. When it is compared to the results of commonly used LFA (Local Field Approximation) model, there is a clear difference in the spatiotemporal distribution of Xe excited species. In particular, the experimentally observed striation phenomena in the anode region could be observed in EF model and the occurrence of the striation was attributed to the ionization and excitation instability due to the streaming electrons in the anode region plasma.

• Korean Journal of Metals and Materials
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• v.46 no.2
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• pp.97-104
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• 2008

Black interlayer was introduced into between ITO and Bus electrodes to enhance a bright room contrast ratio of a plasma display panel. To measure the electrical resistance of the black interlayer, we designed two test patterns, type I and type II, of which type II pattern was successful. Using type II test pattern, the electrical resistance of the black interlayer was measured to be $300{\Omega}$ for $2{\mu}m$ thickness case and infinitely high for 4, $6{\mu}m$ thickness. This result shows that electrical resistance of the black interlayer in the ITO/black interlayer/Bus electrodes structure is a critical parameter which determines the electrical characteristics of the PDP.

• 한국정보디스플레이학회:학술대회논문집
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• 2006.08a
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• pp.733-738
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• 2006

As the film transistor-liquid crystal display (TFTLCD) panels become larger and provide higher resolution, the propagation delay of row and column lines, the voltage modulation of Vcom, and the response time of liquid crystal affect the display images now more than in the past. It is more important to understand the electrical characteristic of TFT-LCD panels these days. This paper describes the electrical model of a 15-inch XGA ($1024{\times}768$) TFT-LCD panel. The parasitic resistance and capacitance of its panel are obtained by 3D simulation of a sub pixel. The accuracy of these data is verified by the measured values in an actual panel [1]. The developed panel simulation platform, the equivalent circuit of a 15-inch XGA panel, is simulated by HSPICE. The results of simulation are compared with those of experiment, according to changing the width of signal. Especially, the proposed simulation platform for modeling TFTLCD panels can be applied to large size LCD TVs. It can help panel and circuit designers to verify their ideas without making actual panels and circuits.

• Journal of Information Display
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• v.4 no.3
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• pp.6-11
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• 2003

We have fabricated a carbon nanotube field emission display (CNT-FED) panel with a 2-inch diagonal size by using a screen printing method and vacuum in-line sealing technology. The sealing temperature of the panel was around 390$^{\circ}C$ and the vacuum level was obtained with 1.4x$10^{-5}$torr at the sealing. When the field emission properties of a fabricated and sealed CNT-FED panel were characterized and compared with those of the unsealed panel which was located in a test chamber of vacuum level similar with the sealed panel. As a result, the sealed panel showed similar I-V characteristics with unsealed one and uniform light emission with very high brightness at a current density of 243 ${\mu}A/cm^2$, obtained at the electric field of 10 V/${\mu}m$.

• 한국정보디스플레이학회:학술대회논문집
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• 2003.07a
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• pp.126-129
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• 2003

Electron beam guides hold the promise of a flat-panel display based on CRT technology. We propose to integrate the periodic focusing electrodes of such beam guides on a glass channel plate for a robust and simple design. The feasibility of this idea is tested numerically and experimentally.

• 한국정보디스플레이학회:학술대회논문집
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• 2003.07a
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• pp.142-145
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• 2003

CRTs have been in the mainstream of displays for over 100 years since K. F. Brown invented the first tube in 1897. The position of CRTs, however, has come to be threatened by flat panel displays, whose performances are notably improved these days. The keys to survival of CRTs as leading displays are examined in this report.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2009.06a
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• pp.29-30
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• 2009

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.06a
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• pp.13-14
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• 2008

• 한국정보디스플레이학회:학술대회논문집
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• 2005.07a
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• pp.57-60
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• 2005

We have recently developed new organic TFT technologies such as self-aligned self-assembly (SALSA) process and a high-resolution color active-matrix LCD panel. A new method to realize high-resolution printable organic TFT array to drive active-matrix flat-panel display will be discussed.

• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.629-632
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• 2009

We have proposed a novel viewing angle controllable display of in-plane switching (IPS) mode with single panel. One pixel of this device is divided to two regions, in which main pixel shows image and sub pixel for viewing angle control. In initial state, the liquid crystal of sub pixel is homogeneous aligned on substrate for wide viewing angle mode. On the other hand, after applying voltage, the liquid crystal of sub pixel tilts up for narrow viewing angle mode. The proposed device has advantage for the function for simple manufacturing process and good viewing angle control with single panel.