LG Display Co., Ltd.
Display panel including touch sensor, display panel comprising the same and method for detecting defect thereof

Abstract:

A display panel, a display device comprising the display panel, and a method for detecting a defect thereof are provided. The method can include preparing the display panel including a first sensing pattern connected to a touch sensor and a second sensing pattern extended from a light emitting device in an active area of the display panel to a non-active area of the display panel, wherein at least one of the first sensing pattern and the second sensing pattern protrudes farther than an end of an encapsulation stack, and the encapsulation stack covers a second electrode of the light emitting device in the active area; detecting a parasitic capacitance between the touch sensor and the second electrode in the active area; comparing the parasitic capacitance with a designated value; and determining that the display panel is defective based on a result of the comparing.