• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.10a
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• pp.503-506
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• 2008

The integral imaging is a promising 3D display technology since it is able to deliver continuous viewing points, full parallax, and full color view to the observers in space. In this paper, we propose a novel interactive 3D integral imaging system using a single camera. The user interface is implemented by adding a camera in the conventional integral imaging system. To show the possibility of the proposed system, we implement the optical setup and present the preliminary results

• Journal of the Optical Society of Korea
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• v.5 no.2
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• pp.43-48
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• 2001

A three-dimensional (3D) display system based on computer-generated integral photography (CGIP) is proposed and its feasibility is discussed. Instead of the pickup process in conventional If, the elemental images of imaginary objects are computer-generated. Using these images, we observed autostereoscopic 3D images in full color and full parallax. The lateral and depth resolutions of the integrated images are limited by some factors such as the image position, object thickness, the lens width, and the pixel size of display panel.

• Journal of the Optical Society of Korea
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• v.5 no.3
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• pp.117-122
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• 2001

A three-dimensional (3D) display system based on computer-generated integral photography (CGIP) is proposed and its feasibility is discussed. Instead of the pickup process in conventional IP, the elemental images of imaginary objects are computer-generated. Using these images, we observed autostereoscopic 3D images in full color and full parallax. The lateral and depth resolutions of the integrated images are limited by some factors such as the image position, object thickness, the lens width, and the pixel size of display panel.

• Proceedings of the Korean Fiber Society Conference
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• 2003.04a
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• pp.44-47
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• 2003

21C 고도정보화 시대를 맞이하여 평판표시소자에 대한 요구가 급증하여 현재는 액정표시소자 (Liquid Crystal Display, LCD)가 가장 널리 사용되고 있는데, 특히 해상도가 우수한 TFT(Thin Film Transistor)-LCD에 대한 수요가 급증하고 있다. Full color TFT-LCD를 구성하는 재료 중 가장 높은 비중을 차지하고 있는 것이 color filter이며, 이것을 제조하는 데 있어 가장 중요한 기술은 화소 형성기술이다. 특히 가격은 고가이지만 해상성이 뛰어난 TFT-LCD에 주로 사용되는 안료분산법은 신뢰성, 특히 내열성 및 공정의 복잡성 등 문제점을 가지고 있다[1]. (중략)

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2009.10a
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• pp.11-14
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• 2009

색이란 빛의 스펙트럼 분포에 의하여 눈이 느끼는 지각이고, 삼자극치에 의하여 수치화된 색자극의 표시이다. 이때 삼자극치란 사람의 눈의 중심와 부분에 분포하는 3가지 추상체에 의하여 뇌로 전달되는 색의 정보를 수치화한 것이다. 삼자극치를 이용하면 색을 수치로 나타낼 수 있고, 색을 객관적으로 측정할 수 있다. 본 논문에서는 LED의 광량 제어에 디지털 방식을 이용한 full color LED 램프의 이론적인 색채연구를 위하여 분광분포를 이용한 삼자극치를 구하는 과정에 대하여 논하였다. 또한 구해진 삼자극치로부터 색도좌표를 구하는 과정을 모델링하였고, 실제로 측정된 색도좌표와의 오차를 계산하였다.

• Journal of Information Display
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• v.9 no.4
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• pp.39-44
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• 2008

This paper investigates the effects of the existing sealing methods, such as the conventional atmospheric-pressure sealing method and vacuum sealing, on temporal bright-image sticking. To produce a residual image caused by temporal brightimage sticking, the entire region of a 42-in panel with an Xe-(11%)-He(35%) gas mixture was abruptly changed to a full-white background image after displaying a square-type image at peak luminance for about 60s. From the monitoring of the difference in the display luminance, infrared emission, color temperature, and disappearing time between the cells with and without temporal bright-image sticking, it was observed that the vacuum sealing method contributes to the reduction of temporal bright-image sticking.

• Journal of the Korean Academy of Esthetic Dentistry
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• v.25 no.2
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• pp.109-126
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• 2016

According of the development and spread of CAD/CAM, a number of prostheses we have done had been replaced. Dental technicians have a difficulty reproducing natural color when producing these zirconia crowns. Difficulty reproducing natural color when producing these zirconia crowns. In my case, in the beginning of experimenting with zirconia, I had a hard time dealing with zirconia and I have tried solve these problems. Therefore, I would like to share Ko's coloring technique made of my effort with you.

• 한국정보디스플레이학회:학술대회논문집
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• 2003.07a
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• pp.928-931
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• 2003

In order to realize full color display, two approaches were used. The first method is the patterning of red, green, and blue emitters using a selective deposition. Another approach is based on a white-emitting diode, from which the three primary colors could be obtained by micro-patterned color filters. White-light-emitting organic light emitting devices (OLEDs) are attracting much attention recently due to potential applications such as backlights in liquid crystal displays (LCDs) or other illumination purposes. In order for the white OLEDs to be used as backlights in LCDs, the light emission should be bright and have Commission Internationale d'Eclairage (CIE) chromaticity coordinates of (0.33, 0.33). For obtaining white emission from OLEDs, different colours should be mixed with proper balances even though there are a few different methods for mixing colors. In this study, we will report a white organic electroluminescent device using exciton diffusion length concept.

• Journal of the Ergonomics Society of Korea
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• v.26 no.4
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• pp.33-39
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• 2007

In the full white pattern, white uniformity means the degree of uniform distribution of white color and luminance across the whole screen. Among the FPDs(Flat Panel Displays), the TFT-LCD has weak point of viewing angle. The viewing angle considering location and direction can cause different image quality of the TFT-LCD. Therefore, white uniformity of the TFT-LCD must consider viewing angle. Based on international standards, this study proposes an alternative that is realistic and ergonomic measurement of white uniformity of the TFT-LCD.

• Proceedings of the Korean Vacuum Society Conference
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• 1998.02a
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• pp.23-23
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• 1998

High resolution field emission dispplay(FED) devices of 5 inch diagonal in size are fully developped for the applications of near-future flat ppanel dispplays. Under the unique gate-switching drive scheme electron trajectory pprofiles are simulated and tested by considering leakage effects of each ppixel. Uniquely-pprinted sppacer with high asppect ratio are fabricated on real ITO glass for high vacuum ppackaging. In addition new gas aging scheme of stabilizing field emitting array are extensively investigated during the sealing and exhausting pprocess in order to pprevent oxidation effects on the micro tipp. Finally fulll color images of 64 gray scale will be demonstrated.