Liquid crystal display device
Patent 8013964 Issued on September 6, 2011. Estimated Expiration Date: 
June 29, 2029. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 29, 2029. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesAchromatic liquid crystal shutter for stereoscopic and other applications Circular polarization plate and liquid crystal display device Patent #: 6977700 InventorsAssigneeApplicationNo. 12494264 filed on 06/29/2009US Classes:349/119Multiple compensatorsExaminersPrimary: Chien, LucyAttorney, Agent or FirmForeign Patent References
International ClassG02F 1/1335AbstractA liquid crystal display device uses a first quarter-wave retardation film and a hybrid aligned nematic film to reduce light leakage in dark state for reaching high contrast ratio, and uses multiple-gamma IC to provide different gamma-curve signals for pixels of different colors to solve color shift problem. In addition, the liquid crystal display device may use a second quarter-wave retardation film to reduce light leakage when viewed in a wide angle so as to further provide higher contrast ratio. | |
