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TRANSFLECTIVE TYPE LCD DEVICE HAVING EXCELLENT IMAGE QUALITY

  • US 20090009447A1
  • Filed: 01/09/2008
  • Published: 01/08/2009
  • Est. Priority Date: 01/10/2007
  • Status: Active Grant
First Claim
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1. A transflective liquid crystal display (LCD) device comprising an LCD panel including an array of pixels each having a reflective area and a transmissive area in a liquid crystal (LC) layer, and a drive circuit for driving said reflective area and said transmissive area of said LC layer by using an inverting drive scheme, wherein, characteristics of reflectance of said reflective area with respect to a value of [Vr (K)-Vr] and characteristics of transmittance of said transmissive area with respect to a value of [Vt-Vt (K)] substantially match each other, where Vr and Vt are drive voltages of said LC layer in said reflective area and transmissive area, respectively, Vr (K) is a dark-state setup voltage in said reflective area, and Vt (K) is a dark-state setup voltage in said transmissive area.

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