• Journal of The Korean Society of Agricultural Engineers
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• v.46 no.6
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• pp.37-45
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• 2004

In this study, twelve different glass fiber reinforced polymer concrete composite panel specimens with various rib heights and tensile side and reinforced side thickness were produced, and the flexural tests were conducted to figure out the effect of The height and thickness influencing on the flexural properties of composite panel. Test results of the study are presented. Especially, a prediction equation of the ultimate moment based on the strength design method agrees well with the test results, and it is thought to be useful for the corresponding design of cross-section according to various spans as the glass fiber reinforced polymer concrete composite panel is applied for a permanent mold.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.25 no.12
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• pp.1988-1994
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• 2001

The CRT(Cathode-ray Tube) of salvage is a process of separating the panel and funnel to recycle a cathode-ray tube. In this paper, the thermal properties of glass for CRT were studied to improve its recycling ratio. In the salvage process, several patterns of breakage, as called 'comer pull', were easily generated on the sealing surface of panel or funnel glass due to the residual tensile stress, which had correlations with some parameters of the manufacturing process of CRT and the initial material properties of glass. Finite element analyses and experimental approaches on the flit sealing process were carried out to obtain the major characteristic of glass related to the residual stress. From this study, it was identified that the thermal expansion coefficient of glass had much influence on the residual stress of panel glass after frit sealing process. Therefore, the optimal conditions of thermal properties for CRT glass were proposed to achieve an effective salvage process. By using these optimal conditions, the size of comer pull on the panel and funnel glass was reduced to 10% level compared with the original size, and the recycling ratio of CRT was increased in the salvage process.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2006.11a
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• pp.300-301
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• 2006

We studied about new module technology to solve warpage problems that produce bending of cell in the LCD (Liquid crystal display). Characteristics of cell gap and glass bending of applying heat Panel's PAD part and cell at various temperature was investigated. When applies heat and compresses PAD party only in case of compressing COG(Chip on Glass), uniformity of cell gap that happen by glass bending by temperature of these compressing COG In the PAD party is decreased. However, in case of compress COG. glass bending of applying heat Panel's PAD part and cell at various temperature produced 20um. But, uniformity of cell gap was not decreased. Therefore, it is considered that applying heat Panel's PAD part and cell could decrease uniformity of cell gap and bending of glass.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2002.11a
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• pp.369.2-369
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• 2002

For the evaluation of the plasma display panel (PDP)'s noise, vibration and sound characteristics of fanless PDP are measured and investigated. PDP is a type of two-electrode vacuum tube which operatres on the same principle as a household fluorescent light. An inert gas such as argon or neon is injected between two glass plates on which transparent electrodes have been formed, and the glass is illuminated by generating discharge. (omitted)

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.10a
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• pp.231-236
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• 2004

The area of flat glass panel displays such as LCD (Liquid crystal display) and PDP (Plasma display panel) has been increased more than 2 $\times$ 2 m$^2$ for productivity improvement. However, such a large panel area incurs large panel deflection during panel transfer using robots or AGV (Automated guided vehicle) systems. Therefore, electronic industries are making an effort to find an alternative transfer system for the large glass panels with small deflection. The air conveyor with porous pads is one plausible solution, but it becomes expensive because the large porous pads cost much and air consumption increases as the panel area increases. In this work, a simple air slit levitating conveyor was devised to lower the equipment cost and to reduce the air consumption of system. The air flow model between the LCD glass panel and conveyor was constructed and its validity was verified by experiments. To minimize the air consumption, the conveyor dimensions were optimized, and the air consumptions between the air conveyors with the air slit and that with the porous pad were compared.

• Journal of Information Display
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• v.3 no.1
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• pp.11-16
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• 2002

This paper presents a study on the tubeless Plasma Display Panel (PDP) packaging using glass-to-glass electrostatic bonding with intermediate amorphous silicon. The bonded sample sealing the mixed gas with three species showed high strength ranging from 2.5 MPa to 4 MPa. The glass-to-glass bonding for packaging was performed at a low temperature of $180^{\circ}C$ by applying bias of 250 $V_{dc}$ in ambient of mixed gases of He-Ne(27 %)-Xe(3 %). The tubeless packaging was accomplished by bonding the support glass plate of $30mm{\times}50mm$ on the rear glass panel and the capping glass of $20mm{\times}20mm$. The 4-inch color AC-PDP with thickness of 8 mm was successfully fabricated and fully emitted as white color at a firing voltage of 190V.

• Applied Chemistry for Engineering
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• v.28 no.5
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• pp.521-528
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• 2017

To find a recycling method for waste liquid crystal display (LCD) panel glasses, we investigated the synthesis process of zeolite with an ion exchange ability by hydrothermal reaction using waste LCD panel glass as a raw material. It was shown that the waste LCD panel glass can be used as a raw material for the production of zeolites having the ion exchange ability. Following conditions for the synthesis of the zeolite with an ion exchange ability were required : the molar ratio of Si to Al components of the waste LCD glass needs to be 2.0 to 2.8, and the temperature of $100^{\circ}C$ and reaction time of 12 hours are needed for the hydrothermal reaction. Based on the required conditions previously mentioned, the A type zeolite was synthesized when the molar ratio of the Si to Al component was 2.0, and the P type zeolite was produced when the molar ratio was 2.8. The type A zeolite synthesized by using the waste LCD panel glass showed a good ion exchange ability and heavy metal adsorption ability. Also, an excellent ion exchange capacity was observed as the crystal phase grows stably in a cubic phase.

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.823-826
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• 2008

Phosphate glass added the various alkali additives is one of the substitutive materials for the barrier-ribs in plasma display panel. The results of differential thermal analysis and coefficient of thermal expansion show that the alkali oxides affect the thermal properties of phosphate glass.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.33 no.11
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• pp.886-893
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• 2009

To develop glass panel vacuum lift system for the post process in module line of FPD(Flat panel display) such as LCD and PDP, new vacuum adsorption parts of this system are proposed. These parts are composed of variable geometry configurations utilizing ceramic porous medium for variable size of glass panels. In order to design this device, detail understanding of flow phenomena in the flow path of vacuum adsorption system is essential. Thus, CFD analysis and designs are performed for several configurations in terms of pressure drop and balancing force at the adsorption side. From the result, new configuration is recommended for optimum design and manufacturing purpose.

• 한국정보디스플레이학회:학술대회논문집
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• 2002.08a
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• pp.643-646
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• 2002

Sealing of two glass plates composing of PDP panel was done in a vacuum chamber by using an auxiliary heating line(AHL). In order to improve the uniformity of sealing temperature and reduce the panel temperature during sealing, the AHL was introduced by a screen printing method inside a frit glass and used as a part of heating source for the frit melting. By using the AHL technology and the specially prepared frit glass, we have successfully sealed a PDP test panel without bubbles and any leak through the frit glass.