Ladas & Parry LLP
Liquid crystal display device having stairs type driving signal
Liquid crystal display devices having stairs type driving signal capable of preventing over-twist and improving response time properties by applying data signal of stairs type pulse signal when a gate signal is applied to drive the TFT, including upper and lower substrates with an interposed liquid crystal layer driving electrodes to drive the liquid crystals; first and second alignment layers rubbed in a first direction and in a direction parallel with the first alignment layer, respectively; first polarizing plate arranged outside of the lower substrate, forming 45&deg; angle with the first direction; and second polarizing plate outside of the upper substrate having a transmittance axis perpendicular to the first polarizing plate and forming 45&deg; angle with the first direction. A gate signal is applied to drive a thin film transistor in each pixel, and data signals having two or more stairs type pulse signals are successively applied.
Boe-Hydis Technology Co., Ltd.
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Seung Hee Seung Ho
Lee Hong