LIQUID CRYSTAL DISPLAY DEVICE

摘要

PURPOSE: A liquid crystal display improving the accuracy of sensing by exact detection of the touch is provided to accurately sense the touch of the finger about the liquid crystal display by suing the variation of surface electric charge amount. CONSTITUTION: A transparent conductive film(12) is formed on a substrate of an upper part of an LCD(Liquid Crystal Display) panel(10). A part of the transparent conductive film is connected to a base voltage source. Polarizing plates are formed in the transparent conductive film. A driving voltage supply circuit generates the driving voltage based on the change of the electric charge amount on a surface of the transparent conductive film according to the touch about the polarizer. A signal transfer unit electrically connects the transparent conductive film and driving electric pressure supply circuit.