• 한국정보디스플레이학회:학술대회논문집
• /
• 2003.07a
• /
• pp.126-129
• /
• 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
• /
• 2003.07a
• /
• pp.142-145
• /
• 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
• /
• 2008.06a
• /
• pp.13-14
• /
• 2008

• Journal of Photoscience
• /
• v.5 no.3
• /
• pp.137-141
• /
• 1998

The current status of flat panel display (FPD) technologies is outlined, with emphasis on liquid crystal displays(LCDs). The principles of a number of LCDs are explained and compared with alternative technologies on the flat panel market. Recently annuounced LCDs, their structures, and their underlying technologies are summarized and compared.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2007.08a
• /
• pp.373-375
• /
• 2007

Through Flow Technology offers unparalleled advantages for the manufacturing of flat panel displays using inkjet technology, including: outstanding reliability, self-maintenance, selfpriming and simple set up. The Xaar 1001 GS6 is the first product incorporating this technology. The concept and test results will be presented.

• Journal of Electrical Engineering and Technology
• /
• v.11 no.5
• /
• pp.1357-1361
• /
• 2016

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2011.06a
• /
• pp.1501-1502
• /
• 2011

• Journal of Powder Materials
• /
• v.22 no.1
• /
• pp.27-31
• /
• 2015

Flat panel display devices are mainly used as information display devices in the 21st century. The worldwide waste flat panel displays are expected at 2-3 million units but most of them are land-filled for want of a proper recycling technology More specifically, rare earth metals of La and Eu are used as fluorescent materials of Cold Cathode Flourscent Lamp(CCFL)s in the waste flat panel displays and they are critically vulnerable and irreplaceable strategic mineral resources. At present, most of the waste CCFLs are disposed of by land-filling and incineration and proper recovery of 80-plus tons per annum of the rare earth fluorescent materials will significantly contribute to steady supply of them. A dearth of Korean domestic research results on recovery and recycling of rare earth elements in the CCFLs prompts to initiate this status report on overseas research trends and noteworthy research results in related fields.

• Journal of the Korean Society of Manufacturing Technology Engineers
• /
• v.25 no.3
• /
• pp.237-243
• /
• 2016

Recently, technologies that produce biofuels from microalgae are being studied worldwide. It is necessary to significantly reduce the production costs of biofuels from microalgae for economic reasons. In this study, the growth curve of the microalgae was obtained using the batch-culture method, and the specific growth rate was predicted using the regression method. Based on the culture conditions of the estimated specific growth rate, the turbidity of the microalgae in the flat panel photobioreactor (PBR) was measured. Furthermore, an on-off control scheme was applied to the flat panel PBR in order to culture the microalgae continuously on the basis of turbidity. The parameters of the on-off control system were displayed by LabView. The on-off scheme of peristaltic pump was controlled based on the turbidity in the PBR. In addition, the turbidity values of growth curves were compared and analyzed in the continuous culture process using the on-off controller.

• Journal of the Semiconductor & Display Technology
• /
• v.12 no.4
• /
• pp.45-48
• /
• 2013

The electronic device, such as flat panel display (FPD), is very important in our life as a means of communication between humans. Liquid crystal display (LCD), which is categorized as a flat panel display, has been used in many display products, especially in TV industry. An LED TV is composed of several electrical components, such as liquid critical module (LCM), analog to digital convertor (AD), power supplier, and inverter board. These modules are very vulnerable to particulate contamination, and causing malfunction or visibility degradation. In this study, we developed a test method for prediction of LCM's lifetime. The test system consists of carbon particle generation flame, dilution system, test chamber, and particle concentration monitoring instrument. Since the carbon particles are the most abundant in the atmosphere and easily absorb light, soot particles are used as a challenging material for this test. The concentration of generated soot particles is set around 4,000,000 #/cc, which is 400 times higher than that of usual atmospheric particles. Through this experiment, we deduced the relationship between the dust concentration and life time of the test specimen.