• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.408-410
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• 2009

First demonstrators of bi-directional OLED microdisplay devices have been developed and integrated into see-through HMD optics. The device combines 'display' and 'imaging' by nested OLED pixels and photodetectors in a single CMOS chip. Major aim of this integration is to provide capabilities for eyetracking to achieve gaze-based human-displayinteraction.

• 한국정보디스플레이학회:학술대회논문집
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• 2006.08a
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• pp.105-110
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• 2006

The highly integrated nature of polymer based organic light emitting diode (POLED) microdisplay technology, coupled with low voltage and low power electroluminescent light generation, combine to offer a very promising technology for use in portable and personal electronics products. We briefly describe the technology before discussing how to engineer the color gamut using whiteemitting polymer materials, microcavity device structure and color filter absorbance.

• The Optical Journal
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• v.13 no.4 s.74
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• pp.63-67
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• 2001

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2007.11a
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• pp.454-454
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• 2007

Eye Glass Display (EGD) with microdisplay to realize the virtual display can make the large screen, so virtual image has been developed by using microdisplay panel. This paper shows study of spherical prism lens design and manufacture of a small size and light weigh EGD with 0.59" OLED panel. Code V is used and it designed an aspherical prism lens about eye relief 25mm and 42 degree of filed of view (FOV). With the application this aspheric prism lens to OLED type's microdisplay, virtual image showed 60 inch at 2m. It had less than 2% of distortion value and modulation transfer function in axial had 30% of resolution with 32 lp/mm spatial frequency. We made an injection molding bases to lens designed.

• 한국정보디스플레이학회:학술대회논문집
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• 2002.08a
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• pp.972-986
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• 2002

• The Magazine of the IEIE
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• v.28 no.4
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• pp.67-78
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• 2001

• 한국정보디스플레이학회:학술대회논문집
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• 2006.08a
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• pp.112-116
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• 2006

In this presentation we will describe two core elements, which combination gives a new approach to layout verification; they are a computational algorithm for modeling of photolithographical processes and a method for physical layout verification that uses output contours of that algorithm. Utilization of this approach allows to improve the quality of LCOS/AM OLED backplanes physical verification, because it considers discrepancies between mask features and printed contours on a wafer.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.10a
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• pp.469-471
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• 2022

This paper presents an implementation of a calibration circuit to correct the gain error, DC offset and sampling clock phase error generated in the process of converting digital pixels to analog pixels to drive an analog-driven 4K UHD LCOS panel. The proposed calibration circuit consists of a gain and DC offset adjustment circuit and a sampling clock phase adjustment circuit. The calibration circuit is implemented with an FPGA device, and video amplifiers.

• Proceedings of the Optical Society of Korea Conference
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• 2001.08a
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• pp.212-213
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• 2001

본 논문에서는 마이크로디스플레이용 광학계의 렌즈 설계와 시뮬레이션으로 구면수차, 비점수차, 왜곡, 색수차를 보정하여 설계한 광학계의 성능 평가를 소개하고자 한다.

• 한국정보디스플레이학회:학술대회논문집
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• 2003.07a
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• pp.295-298
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• 2003

Reflective mode liquid crystal on silicon (LCoS) microdisplay is the major technology that can produce extremely high-resolution displays. A very large number of pixels can be packed onto the CMOS circuit with integrated drivers that can be projected to any size screen. Large size direct-view thin film transistor (TFT) LCDs becomes very difficult to make and to drive as the information content increases. However, the existing LC alignment technology for the LCoS cell fabrication is still the mechanical rubbing method, which is prone to have minor defects that are not visible normally but can be detrimental if projected to a large screen. In this paper, application of photo-alignment to LCoS fabrication is presented. The alignment is done by three-step exposure process. A MTN $90^{\circ}$ mode is chose as to evaluate the performance of this technique. The comparison with rubbing mode shows the performance of photo-alignment is comparable and even better in some aspect, such as sharper RVC curve and higher contrast ratio.