Lg Display Co., Ltd.

Ka-Kyung Kim

Young-Sik Kim

Eui-Hyun Chung

Jung-Il Lee

Seong-Soo Hwang

Bung-Goo Kim

A COG type LCD device includes a first substrate including a display area and first, second, third and fourth non-display areas, gate and data lines in the display area on the first substrate and defining pixel regions, switching thin film transistor at each crossing portion of the gate and data lines and connected to the gate and data lines, a pixel electrode in each pixel region and connected to the thin film transistor, first testing thin film transistors in the second non-display area connected to the data lines and spaced apart from each other with a constant interval therebetween, first, second and third data testing lines connected to one ends of the data lines through the first testing thin film transistors, first, second and third data testing pads connected to the first, second and third data testing lines, respectively, data link lines in the first non-display area and connected to another ends of the data lines, second testing thin film transistors in the first non-display area and connected to the data link lines, gate link lines connected to the gate lines, third testing thin film transistors connected to the gate link lines, gate testing lines connected to the gate lines through the third testing thin film transistors, gate testing pads connected to the gate testing lines, a common testing line and a common pad in the non-display area, a second substrate spaced apart from the first substrate, a color filter layer and a common electrode sequentially formed on the second substrate, wherein the common electrode is connected to the common testing line, and a liquid crystal layer between the first and second substrates, wherein a driving IC is attached in the first non-display area.

Chip on glass type LCD device including testing thin film transistors, testing lines and testing pads and inspecting method of the same

An array substrate for a liquid crystal display device, comprises: a substrate having a display region and a non-display region; a gate line and first and second data lines on the substrate; first and second thin film transistors in the first and second pixel regions, respectively, the first thin film transistor connected to the gate line and the first data line, the second thin film transistor connected to the gate line and the second data line; a planarization layer on the first and second thin film transistors, the planarization layer having a drain contact hole exposing both of drain electrodes of the first and second thin film transistors; and a pixel electrode and a common electrode over the planarization layer.

Array substrate for liquid crystal display device

A liquid crystal display device includes: first and second substrates facing and spaced apart from each other, the first and second substrates having; first to fourth driving lines in the non-display area over the first substrate, the first and second driving lines horizontally separated by a first distance, and the third and fourth driving lines horizontally separated by a second distance greater than the first distance; a seal pattern of an ultraviolet curable material in the non-display area, the seal pattern overlapping the third and fourth driving lines; and a liquid crystal layer inside the seal pattern between the first and second substrates.

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Seoul, South Korea

Ka-Kyung Kim