• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제48권10호
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• pp.704-709
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• 1999

The optical properties such as luminance and color coordinates for phosphor layer were studied with applied voltage and gas pressure, Xe mixing ratio, frequency using He and Xe mixing gas in chamber like AC PDP. The luminance of red phosphor layer at constant pressure(300Toor) is increased with increasing voltage, but color purity is not varied. The luminance of red phosphor layer at constant voltage(280V)is decreased with increasing pressure, but the color purity is not varied. But the luminance is increased with increasing Xe mixing ratio at constant pressure(200Toor). And also the color purity is improved by this process. The luminance is increased up to 40kHz, but the color purity with frequency is not varied.

• Current Optics and Photonics
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• 제7권2호
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• pp.191-199
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• 2023

We propose a dual Fabry-Perot interferometer (DFPI) structure that combines two Fabry-Perot interferometers. The structure is designed to have spectral peaks in the red, green, and blue regions simultaneously, to be applicable to R, G, and B subpixels without any patterning process. The optimized structure has been fabricated on a glass substrate using a thermal evaporation technique. When the DFPI structure was attached to the quantum-dot color-conversion layer, the full width at half maximum values of the green and red spectra decreased by 47.29% and 51.07% respectively. According to CIE 1931 color space, the DFPI showed a 37.66% wider color gamut than the standard RGB color coordinate. Thus it was experimentally proven that the proposed DFPI structure improved color purity. This DFPI structure will be useful in realizing a display with high color purity.

• International Journal of Internet, Broadcasting and Communication
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• 제7권2호
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• pp.9-15
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• 2015

Various studies with regard to increasing the optical efficiency of plasmonic color filters have previously been conducted, such as mixing materials or applying diverse pattern shapes. Fundamentally, it is important to maximize the photonic crystal effect by finding the optimum periods of lattice as well as calculating the most efficient transmission area. In this study, we propose a technical method for optimizing the plasmonic color filters that have a high color gamut and luminance by analyzing the light spectrums based on the 1931 color coordinate system. Moreover, we suggest a calculation method in order to define the individual color purity of red and green and blue filters. Consequently, efficiency values are obtained independently from each color filter by evaluating the color purity and the luminance. The final result obtained from simulation are 27.6% of relative luminance and 25.3% of color gamut. The proposed optimization method is applicable to all plasmonic color filters having photonic crystal arrays.

• 한국세라믹학회지
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• 제36권8호
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• pp.820-828
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• 1999

본 연구는 유리 제품 색조 분석시 일반적으로 사용되는 주파장과 순도의 계산에 있어서 정확한 결과를 얻을 수 있는 방법을 제시하고자 하였다. 기존에 계산에 사용해 왔던 자와 확대된 색도 좌표도에 의한 방법 대신, 측정한 색도 좌표값이 무채색 자극치와 만드는 직선의 기울기와 단색광 자극치와 무채색 자극치가 나타내는 직선의 기울기 간의 상관관계를 이용하여 주파장 및 순도의 계산방법을 찾았다. 이를 실제 제품에 적용하였을 때, 기존 방법 보다 정확한 결과를 얻었다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.744-747
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• 2009

Plasma Display Panels (PDPs) have illustrated impressive results in terms of light emission efficiency of the Ne-Xe mixture compared with the He-Xe mixture. However, He-Xe has shown to achieve superior color purity. This paper presents the optimization of excitation efficiency and color purity for He-Ne-Xe ternary gas mixtures. Furthermore, we investigate the effect that a protective dielectric layer has on UV photon efficiency in a matrix known as electrode type PDP.

• 한국인쇄학회지
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• 제1권1호
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• pp.7-41
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• 1983

Reproduced colors which are half-tone printed at the rate of 10,20,30, ...100% half-tone dot area by each process ink- cyan, magenta, yellow and at the rates of 0,30,60, 100% half-tone dot areas by the mean color mixing of black, cyan, magenta and yellow, are colorimetric analyzed by make use of the 1931 CIE XYZ system of color specification and matching the Munsell color system. Espacially, magenta and secondary colors which are contained magenta, do not have good uniformity and proportionalization in the dominant wavelength and the excitation purity. Half-tone colors without reflection of blue light, are reproduced ideal color with the excitation purity 100% in wavelengths from 555nm to 600nm.

• 한국전기전자재료학회논문지
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• 제27권12호
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• pp.837-840
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• 2014

Novel materials of $Zn(HPB)_2$ and Ir-complexes were respectively synthesized as blue or red emitting material. White Organic Light Emitting Diodes (OLED) were fabricated by using $Zn(HPB)_2$ for a blue emitting layer, Ir-complexes for a red emitting layer and $Alq_3$ for a green emitting layer. White OLED was fabricated by using double emitting layers of $Zn(HPB)_2$ and $Alq_3:Ir$-complexes, and hole blocking layer of BCP. We also varied the thickness of BCP. When the thickness of BCP layer was 5 nm, white emission was achieved. We obtained a maximum luminance of $3,500cd/m^2$. The CIE coordinates was (0.375, 0.331). From this study, we could propose that the hybrid structure is efficient in lighting application of white OLED by improvement of color purity.

• 디자인학연구
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• 제15권2호
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• pp.169-176
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• 2002

본 연구의 목적은 디자인경영 개념을 도입하여 플라스틱 소재를 중심으로 휴대용 전자기기 소재에 나타난 칼라 트렌드를 우리나라와 일본지역 실지조사를 통해서 칼라 트렌드의 현황및 예측하는데 있다. 경영의 개념을 디자인에 결합, 도입시킴으로서 우리나라 기업들이 보다 더 합리적이고 체계적인 디자인 프로세스 관리에 대한 사고의 전환을 시도하였고, 또한 디자인 지식공유시스템을 통한 중소기업, 가전업체, 전문기관 및 관련단체와의 지식 공유화 방안을 제시하고자 하였다. 플라스틱 소재에 나타난 칼라 트렌드 조사 결과, Cybertic, Purity 및 Colorful 경향 등 3가지 경향을 보여주고 있으며, 감성마케팅 전략으로서의 칼라 및 표면처리 추진방향은 고급화, 다양화, 그리고 차별화 등에 초점을 두고 있는 것으로 나타났다. 마지막으로, 칼라 트렌드 DB 구축방안을 제시하였다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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• pp.83-86
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• 2002

This paper presents a new self-erasing discharge mode for the improvement of luminous efficiency and color purity of an AC plasma display panel (AC PDP). A new self-erasing discharge mode is produced between successive sustain pulses. by simultaneously applying the auxiliary short pulses at the falling edge of the sustain pulses without cross-talk during a sustain period. As a result. the luminous efficiency and color gamut are improved by 16% and 5%, respectively.

• Journal of Information Display
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• 제6권3호
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• pp.26-29
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• 2005

Nanosize cobalt aluminate($CoAl_2O_4$) power was coated as filter layer for us to improve the color purity and contrast performances on the inner face of CRT panel. We simulated color properties by measuring the transmittance and thickness of the coated filter layer. Contrast performance could be improved and color gamut was also changed by the selective light absorption of filter layer at 580${\sim}$605 nm.