Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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Electro-optical Characteristics of Full-HD LCOS Depending on the Trench Structure between Adjacent Pixels

Full-HD LCOS의 이웃한 픽셀 사이의 Trench구조 변화에 따른 전기광학적 특성 분석

  • SonHong, Hong-Bae (Department of Electronics and Electrical Engineering, Dankook University) ;
  • Kim, Min-Seok (Department of Electronics and Electrical Engineering, Dankook University) ;
  • Kang, Jung-Wwon (Department of Electronics and Electrical Engineering, Dankook University)
  • 손홍배 (단국대학교 전자전기공학과) ;
  • 김민석 (단국대학교 전자전기공학과) ;
  • 강정원 (단국대학교 전자전기공학과)
  • Published : 2009.06.30
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Abstract

In order to check the validation of LC simulation, 0.7 inch LCOS panel in full-HD resolution was fabricated and used for the electro-optical measurement. Compared the measured data with the calculated data, the averaged difference was 1.72% under 0 ~ +6 V bias on pixel electrode. To improve the optical characteristics of full-HD LCOS panel, the planar structure and trench structures (0.1 um, 0.2 um and 0.3 um-in-depth) between adjacent pixels were investigated with LC simulation. The planar structure showed the higher reflectance and faster reflectance-voltage response time than the trench structure. The optical fill factor and contrast ratio of planar structure were also higher than those of trench structures. As compared 1 um-in-depth trench structure resembled to the real structure with the planar structure, the optical fill factor was improved by 1.15% and the contrast ratio was improved by 5.26%. In order to minimize the loss of luminance and contrast ratio, the planar structure need to be applied between adjacent pixels.

Keywords

References

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