• 한국정보디스플레이학회:학술대회논문집
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• 2007.08a
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• pp.837-840
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• 2007

We propose a novel digital driving method for AM-OLED (Active Matrix-Organic Light Emitting Diode) display. Proposed method modulates $V_{DD}$ so that luminance may be weighted in accordance with the bit significance. We can increase the minimum emission time or slower scan circuits are applicable by using proposed method.

• Journal of Digital Contents Society
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• v.14 no.1
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• pp.73-80
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• 2013

The advertisement using DID(Digital Information Display) has been a huge increase in many public spaces. Many company has been advertise their products through DID in recent. In this paper, we suggest more effective advertisement system on DID for advertisers. This system can provide a floating population, operation information and other useful informations for advertisement. The advertisers can choose and buy the advertisement that they want.

• 한국정보디스플레이학회:학술대회논문집
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• 2007.08b
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• pp.1429-1432
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• 2007

We fabricated white organic light emitting diodes(WOLED) having two complementary and three primary colors with emission layers of DPVBi / MADN : DCM2-0.5% and DPVBi / $Alq_3$ / MADN : DCM2-1.5%, respectively. WOLED using three primary colors shows broad electroluminescence including green emission peak at 510nm while optical properties of the two complementary WOLED was higher current efficiency of 6.2 cd/A than 4.9 cd/A of three primary color WOLED. The maximum luminescence of WOLED with two complimentary color was $15200cd/m^2$ along with luminous efficiency 6.2cd/A, as achieving stable white color coordinates for both of WOLEDs at (0.33 , 0.33) almost.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.870-873
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• 2012

The advertisement using DID(Digital Information Display) has been a huge increase in many public spaces. Many company has been advertise their products through DID in recent. In this paper, we suggest more effective advertisement system on DID for advertisers. This system can provide a floating population, operation information and other useful I informations for advertisement. The advertisers can choose and buy the advertisement that they want.

• Journal of Information Display
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• v.6 no.3
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• pp.30-35
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• 2005

We have developed a paper-like display using polymer particles charged triboelectrically. By using a toner-type display with a simple structure, we continued that polymer particle movement is controlled by only a voltage difference between scan and data electrode. We fabricated a diagonal 2.4 inch panel on the glass substrate and successfully produced an image by the passive driving method with operating voltages of about ${\pm}$ 120 V. The contrast ratio was 4:1.

• Journal of the Korea Society of Computer and Information
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• v.14 no.1
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• pp.153-161
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• 2009

In this paper, we designed and implemented realtime DID(digital information display) system based on web server that displayed multimedia contents. The contents are weather, news information on the internet web sites and public relations or advertisements data on local systems. The DID system has client/server architecture that the server send to client that schedule informations and multimedia contents received form web server and the client displayed the contents though scheduled information. Therefore the systems overcome network fault for the mean time. Also, the system has realtime services of web page filtering function that extract the partial information of specific web pages.

• Journal of Information Display
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• v.8 no.1
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• pp.14-17
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• 2007

The toner type paper-like display (PLD) has been developed with two polymer particles having opposite polarity composed of polymer, colorant and external additives (nano-sized silica). Nano-sized silica with triboelectric charge was used for the charge control agent (CCA) and influenced on the electrostatic properties of the silica-coated polymer particles. The surface morphology and the cohesiveness of silica-coated polymer particles were changed with the silica coating time. From these results, it was verified that the PLD cell using silica-coated particles (200 seconds) shows a good white appearance and low driving voltage.

• KSCI Review
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• v.15 no.1
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• pp.165-169
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• 2007

이 논문에서는 인터넷상의 실시간 날씨 정보, 실시간 뉴스, 생활 정보 같은 컨텐츠나 특정 홈페이지 또는 자체에서 제작한 각종 홍보 및 광고용 플래시 및 동영상 컨텐츠를 자동 실연하는 DID(Digital Information Display)서비스를 제작한다. 제안된 DID서비스는 기존의 DID 서비스와 달리 일관된 포스터나 홍보물의 실연에서 벗어나 실생활에 유용한 날씨나 뉴스 정보를 인터넷과 마찬가지로 실시간으로 서비스 해줌으로써 DID서비스의 광고효과를 증대할 것이라 기대된다.

• Journal of Information Display
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• v.9 no.4
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• pp.45-49
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• 2008

The characteristics of the sustain-driving circuit were examined in this paper. The sustain-driving circuit is in charge of the most important part of PDP driving because it manages most of the power consumption in the PDP. A couple of gatedriving circuits for the sustain-driving circuit were introduced in this paper, and a new driving circuit was also proposed. This new circuit is more cost-effective and has a simpler PCB layout compared to the conventional one. Some additional driving advantages were noted as well.

• Journal of Information Display
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• v.7 no.4
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• pp.24-26
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• 2006

We have developed a new driving method named TROPHY(Talented Role-playing Technology with Dual Polarity sustainer in Hybrid Mono board). In this method, the sustain voltage is partially compared to the conventional method and the number of power sources is reduced by voltage level unification during the reset, address and sustain period. The hybrid mono board was especially developed to implement those technologies. Through this, we can lower the cost with the TROPHY compared to the conventional one. It is a suitable technology to improve the reliability of circuit and image sticking problem. We can also reduce the number of driving boards and the EMI problem compared with those of the conventional method.