公开(公告)号：EP3518027A1

公开(公告)日：2019-07-31

申请号：EP17865463.8

申请日：2017-10-26

申请人： Panasonic Corporation ,  Panasonic Liquid Crystal Display Co., Ltd.

发明人： SUZUKI Jun ,  YOSHIZAWA Akihiro ,  NOZAKI Hideki ,  ENDOU Satoshi ,  FUKUTA Kenji ,  GOTO Hiroaki

IPC分类号： G02F1/1368 ,  G01R31/00 ,  G02F1/13 ,  G02F1/133 ,  G09G3/20 ,  G09G3/36

摘要： A liquid crystal display including a liquid crystal panel of an active matrix type is provided. The liquid crystal display includes source lines and gate lines, pixel electrodes, switching elements, a source driver, a gate driver, and a failure inspection circuit. The source lines and the gate lines are disposed in a lattice form. The pixel electrode is disposed in a pixel region defined by the source line and the gate line. The switching element is disposed corresponding to the pixel electrode. The source driver drives the source lines. The gate driver drives the gate lines. The failure inspection circuit is connected to the source lines or the gate lines, and performs inspection of the source lines or the gate lines. The failure inspection circuit includes monitor input signal lines, monitor output signal lines, a determination circuit that detects voltage levels of output signals from the monitor output signal lines, and an expected value comparison circuit that compares outputs from the determination circuit with expected values.