TOUCH PANEL COMBINED TO LCD PANEL AS ONE BODY FOR PREVENTING TOUCHING POINT FROM SHAKING

摘要

PURPOSE: A touch panel combined to an LCD panel as one body is provided to prevent a touching point from shaking by preventing a DC voltage signal supplied to the LCD panel from being induced to the touch panel. CONSTITUTION: The LCD panel(40) includes liquid crystal cells prepared on each crossing of gate lines and data lines. The touch panel(64) generates a coordinate signal for a touched position by touching a screen projected from the LCD panel with a pen or a finger. A blocking layer(62) formed between the touch panel and the LCD panel includes a metal electrode bar connected to a ground electric potential in order to prevent the AC common voltage supplied to the LCD panel from being induced to the touch panel.