LIQUID CRYSTAL DISPLAY DEVICE

摘要

PURPOSE:To easily measure the packaging resistance of a flexible PCB and to simplify the control of a production process by providing a bus line which electrically short-circuits at least two packaging terminals at the end of a signal supply wiring. CONSTITUTION:The packaging terminal 8 on a TFT array substrate 1 is constituted of the flexible PCB 4 in order to supply a signal to a driver IC 3 for driving. The signal is supplied from the outside by packaging and connecting one terminal per one kind of signal line through the packaging terminal. The signal supplied from the outside is transmitted to the respective drivers IC 3 for driving through the bus line 6 on the TFT array substrate 1. Furthermore, the bus line 10 for electrically short-circuiting between the packaging terminals at the end of the bus line 6 is provided on the TFT substrate 1. Therefore, the packaging and connecting resistance of the flexible PCB 4 is measured just by connecting an ohmmeter to the connector of the flexible PCB 4 immediately after the flexible PCB 4 is packaged. Thus, the accurate control of the process is easily accomplished.