Samsung Display Co., Ltd.

Seung-Jin Kim

Seul-Ki Kim

Jeong-Hyun Lee

Jae-Ho Lee

Ji-Young Jeong

Yun Seok Han

Da-Hye Cho

Dong Hun Lee

Yun-Seok Han

A display panel includes a plurality of display signal lines positioned in a display area. A plurality of test pads are positioned in a peripheral area around the display area and are respectively connected to the plurality of display signal lines. The plurality of test pads include a first test pad positioned at an edge of the peripheral area and a second test pad positioned at the middle of the peripheral area. A shorting bar is connected to the plurality of test pads through a contact assistant. The first test pad is connected to the second test pad through a connection line.

Display panel and display device including the same

An array substrate includes a plurality of data lines, a plurality of gamma lines, a repair pad, a repair line, an inspection pad and an inspection line. The data lines transmit a data voltage to an active region. The gamma lines apply a gamma reference voltage to generate the data voltage. The repair pad repairs the data line. The repair line extends from the repair pad. The repair line is disposed adjacent to the gamma line. The inspection pad applies an inspection signal. The inspection line extends from the inspection pad. The inspection line is connected to the data lines. The gamma lines are connected to the inspection line.

Array substrate and display apparatus having the same

In a test method of a display panel, a test signal and a test voltage are generated according to a test control signal. A display area of the display panel is tested based on the test signal and the test voltage. A driving voltage line and an on/off voltage line formed on the display panel are tested based on the test signal and the test voltage.

Method of testing a display panel and apparatus for performing the method

Growing community of inventors

Asan-si, South Korea

Seung-Jin Kim