한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Local Dimming Technique for High Dynamic Range LCD by White LED Backlight with New Control Algorithm

  • Huang, K.T. (Product development div., HannStar Display Corporation) ;
  • Lee, Boris (Product development div., HannStar Display Corporation) ;
  • Tsai, C.W. (Product development div., HannStar Display Corporation) ;
  • Wu, C.C. (Product development div., HannStar Display Corporation) ;
  • Cheng, C.F. (Product development div., HannStar Display Corporation) ;
  • Chao, Andy (Product development div., HannStar Display Corporation) ;
  • Yu, C.H. (Product development div., HannStar Display Corporation)
  • Published : 2008.10.13
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Abstract

Dynamic range of LCD panel can be dramatically improved by adaptive dimming technique. Adaptive control of LED backlight by input signal can reduce the light leakage of LCD panel and achieve high contrast ratio. An algorithm is proposed to distinguish the input signal and get proper luminance level. For lower cost of LCD panel, white light LED is used to accomplish 2D dimming and get better image performance of LCD.

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