Abstract
In case of applying 2×2 inversion driving method for H-IPS mode LCM, We can easily perceive the vertical line pattern phenomenon looking like a furrow. This phenomenon is caused directly by symmetrical coupling interference between both data bus lines of one pixel and pixel electrode and indirectly by three or four times of capacitance between data bus line and pixel electrode as compared to conventional IPS structure. To remove this phenomenon, we designed a optimum pixel layout to remove the vertical line pattern phenomenon. This H-IPS pixel layout design concept is having a asymmetry coupling interference between both data bus lines of one pixel and pixel electrode. With the optimum pixel layout, the vertical line pattern phenomenon which was happened in 20.1 inch 2×2 inversion driving UXGA TFT LCD of H-IPS structure was removed.
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