ELECTRONIC TESTING METHOD OF IN-CELL TOUCH SCREEN

摘要

A method of electrically testing an in-cell touch screen is disclosed. The in-cell touch screen includes a display electrode, a driving line, and a detecting line. The detecting line intersects the driving line. The method includes floating the display electrode and performing at least one of: A) applying a first predetermined voltage to one column of adjacent columns of the driving line or one row of adjacent rows of the driving line, and grounding the other column of the adjacent columns or the other row of the adjacent rows, and B) applying a second predetermined voltage to one column of adjacent columns of the detecting line or one row of adjacent rows of the detecting line, and grounding the other column of the adjacent columns or the other row of the adjacent rows. The method also includes determining whether the driving line or the detecting line is shorted or opened.

主权项

1. A method of electrically testing an in-cell touch screen, the in-cell touch screen comprising: a display electrode, a driving line, and a detecting line, wherein the detecting line intersects the driving line, wherein the method comprises:
floating the display electrode; performing at least one of:
A) applying a first predetermined voltage to one column of adjacent columns of the driving line or one row of adjacent rows of the driving line, and grounding the other column of the adjacent columns of the driving line or the other row of the adjacent rows of the driving line; andB) applying a second predetermined voltage to one column of adjacent columns of the detecting line or one row of adjacent rows of the detecting line, and grounding the other column of the adjacent columns of the detecting line or the other row of the adjacent rows of the detecting line; observing a display picture of the in-cell touch screen; and determining whether the driving line or the detecting line is shorted or opened.