Au Optronics Corporation

Quanta Display Inc.

Wen-Yi Shyu

Chun-Chang Chiu

Liang-Neng Chien

A panel of a liquid crystal display panel with a plurality of pixels is disclosed, wherein each pixel comprises one switch, one pixel electrode and one floating line. The switch comprises a gate, a source, and two drains. The pixel electrode can be electrically connected to the switch through the drain. Besides, each floating conductive line and two drains of the same switch are crossed but electrically disconnected. Hence, the design of the dual drain (or dual source) illustrated above and the combined the technique of laser welding can be used to repair the source-drain leakage of the substrate of the liquid crystal display device.

Panel for liquid crystal display device

A method for manufacturing a pixel electrode contact structure of a thin-film transistors liquid crystal display is disclosed. First, a transparent substrate having a first insulating layer thereon is provided. Afterward, a first metal layer and a second metal layer are sequentially formed on the substrate and then be patterned by a halftone technology and an etching process, wherein the second metal layer is removed within the pixel electrode contact area. In the meantime, the drain lines of the thin-film transistor comprising the first metal layer and the second metal layer are formed. Next, a patterned passivation layer is formed on the substrate. Finally, a pixel electrode layer directly connecting the first metal layers within the pixel electrode contact structure is formed on the substrate. This invention provides the pixel electrode contact structure with low contact resistance and prevents the current leakage from the drain line to the storage capacitor.

Pixel electrode of LCD device having first, second and third metal layers and pixel electrode contact hole in which the first metal layer is exposed to, and the second metal layer although contacting the first metal layer, is not exposed to the pixel electrode

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Tao Yuan Shien, Taiwan

Wen-Yi Shyu