• 전자공학회논문지D
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• 제34D권7호
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• pp.62-70
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• 1997

In this paper, the optical conditins of a reflective multi-color STN-LCD based on electrical control of birefringence is designed on the poincare sphere. First of all, the angles of polarizer and analyzer for the best color purity are decided in the configuration without a retardation film. A retardation film is introduced for a bright white in the range of the applied voltage. The sretardation and the angle of the retardation film are also decided on the poincare shpere. The test cell is farbricated and its measured spectral transmittance and the CIE chromaticity diagram agree well with simulations.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.I
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• pp.793-796
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• 2005

A structure and a design of device were developed to fabricate large-scale active matrix organic light-emitting diode (AMOLED) display with good color purity and high aperture ratio. With these technologies, we developed a full color 14.1 inch WXGA AMOLED display. For the integration of OLED on an active matrix a-Si TFT backplane, an efficient top emission OLED is essential since the TFT circuitry covers a large position of the pixel aperture. These technologies will enable up the OLED applications to larger size displays such as desktop monitors and TVs.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2008년도 춘계 종합학술대회 논문집
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• pp.187-190
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• 2008

예로부터 중국에서는 Red Color를 선호하여왔으며, 이는 원시적인 태양숭배에 대한 고귀함, 순결함, 정직함, 흥망성쇠, 성공, 행복, 길함(吉), 경사로움 등의 상징으로 대대로 전해 내려온 것이다. 본 논문에서는 중국역사로부터 현대에 이르기까지 중국 포스터디자인에 표현되어진 전달대상에게 중국이라는 이미지를 강하게 나타나고 중국문화라는 것을 인식하게 되는 Red Color에 대한 분석이다. 20세기 중반부터 중국포스터에 나타난 Red Color는 당시 객관적인 영향으로 정치적 의미를 지닌 컬러로 변모 하였지만 오늘날에 와서는 글로벌화의 영향으로 다시금 중국 5000년의 문화를 대표하는 컬러로 재 표현되고 있음을 알 수 있다. 날로 발전하는 중국포스터디자인에서 Red Color가 세계인의 의식에 반영됨으로써 전달대상에게 중국이라는 이미지를 전달하는 매개체로 자리 잡고 있다. 이러한 Red Color에 대한 분석을 통하여 새로운 포스터디자인의 의미를 새기고자 한다.

• The Korean Journal of Ceramics
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• 제7권2호
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• pp.58-62
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• 2001

The relationship between the addition of Sb$_2$O$_3$ and the color difference by solarization in photosensitive glasses was investigated. Glasses containing CeO$_2$ and Sb$_2$O$_3$ simultaneously and glasses with only CeO$_2$ were changed reddish and yellowish respectively after exposing to ultra violet ray. Color difference between compositions was represented by dominant wavelength and purity. Since, in glasses containing CeO$_2$ and Sb$_2$O$_3$ simultaneously, Sb$_2$O$_3$ as reduction agent affected Ce$^3+$ ions to increase in glass and more Ce$^4+$ ions were induced than in glasses with only CeO$_2$ during UV irradiation, more electrons released by photo-ionization, which were color centers, were trapped by Ce$^4+$. In conclusion, the introduction of Sb$_2$O$_3$ to photosensitive glasses with CeO$_2$ resulted in the change of color center concentration in glasses and prevented the solarization of photosensitive glasses with CeO$_2$.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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• pp.966-969
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• 2006

An optical model based on the optical thin-film theory is derived to calculate the output radiance of small molecules organic light-emitting diodes (OLEDs). We have designed the high efficiency OLEDs using the reflectance phase control of dielectric layers. It is found that OLED with a single $TiO_2$ dielectric layer is a good candidate to enhance the outcoupling efficiency and increase the color purity.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2001년도 추계학술대회논문집 I
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• pp.413-418
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• 2001

The moire phenomena, which are induced by mask vibration due to the excitation of speakers, degrades the color purity of CRT. So it is important to eliminate this phenomena to obtain a good CRT design. In this study we analyze the mask vibration by experiment as well as finite element method. To obtain the finite element solutions efficiently, an equivalent model was employed. The experimental and analysis results show reasonable agreements. An enhanced design configuration of mask welding points are suggested through this study.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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• pp.475-478
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• 2007

A solution for carbon nanotube based field emission displays has been designed and built. The solution makes use of structure layout to control electron beam trajectories, uniformity by use of ballasting, emission anomalies eliminated by selective carbon nanotube growth and invisible spacers to maintain the vacuum gap.

• 세라미스트
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• 제21권1호
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• pp.80-97
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• 2018

To realize a high luminous efficacy and a high emission color purity for the white-LEDs, the understanding for luminescence properties of the phosphors is significantly important because the performance of white-LEDs is directly affected by the luminescence properties of the phosphors. In this paper, therefore, we reviewed some commercially available $Eu^{2+}$- and $Ce^{3+}$- activated phosphors and discussed for the luminescence properties of these phosphors.

• 디지털융복합연구
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• 제18권12호
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• pp.577-583
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• 2020

취학 전 아동에게 시각은 중요한 역할을 하며 모든 것은 배우고 인지하는 것은 사물에 색채로부터 시작된다. 게임의 인터페이스(UI)는 아동들의 게임에 대한 첫인상으로 합리적인 색채 디자인이 필요하다. 본 논문에서는 취학 전 아동을 위한 모바일 교육용 게임을 선정하여 게임 인터페이스와 작동 아이콘에서 주요 색채를 포토샵(Photoshop)에 적용함으로 UI 색채의 세 가지 요소인 색상, 명도, 채도를 분석하고자 한다. 연구결과로 아동 교육용 게임 UI 색채 디자인에 대해 3가지 개선점을 제시한다. 첫째, 디자인할 때 현실과 비슷한 색채를 선택함이 우월하다. 둘째, 아동들의 취향에 따라 따뜻한 색을 선택함이 우월하다. 셋째, 아동의 시력 보호하기 위해 대비색 적용을 선택할 때 색채의 명도나 순도를 낮춘다. 연구결과가 취학 전 아동(3~6세)을 위해 개발된 교육용 게임 색채 디자인의 참고 자료로 활용되기를 바란다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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• pp.65-68
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• 2002

A new driving scheme is proposed to improve the color purity by reducing the neon (Ne) emission of 585 nm in an ac PDP. Applying the new driving scheme to the address electrodes during a sustain-period induces a new discharge mode that can reduce the Ne emission remarkably. For this new discharge mode, the change in the Ne emission intensity including the discharge characteristics is measured and the corresponding mechanism is also analyzed. As a result, it is found that a color gamut area is expanded by approximately 9.2 % in comparison with a conventional case.