POLISHING APPARATUS AND METHOD FOR FLAT DISPLAY PANEL

摘要

The present invention relates to a polishing apparatus and a polishing method for a display panel. The polishing apparatus for a display panel comprises: a table which transfers a panel in a Y-axis direction inside a polishing section; polishing stones which are placed both sides of the polishing section respectively in order to polish both corners of the panel; a first regulating unit which regulates the position of the polishing stone in a Z-axis direction; a measuring unit which measures the height of the bottom of the polishing stone in the lower area of the polishing stone and measures the height of the bottom of the panel in the lower area of the table; and a control unit which obtains the central height of the polishing stone and the central height of the panel from a previously stored thickness value of the polishing stone and a previously stored thickness value of the panel respectively through the measured height of the bottom of the polishing stone and the measured height of the bottom of the panel by the measuring unit, and regulates the position of the polishing stone in a Z-axis direction through the first regulating unit according to a compensation value by calculating the compensation value of the Z-axis direction position of the polishing stone in order to make the central height of the panel agree with the central height of the polishing stone.