Patent ID: 9165532
Filing Date: 2015-10-20
Classification: G09G

Abstract:
1. A display device comprising: a display panel in which a plurality of image signal lines and a plurality of scanning lines are formed in a matrix; a plurality of image-signal-line drive circuits disposed on a periphery of said display panel, the plurality of image-signal-line drive circuits driving said plurality of image signal lines; and a scanning line drive circuit disposed on a periphery of said display panel, the scanning line drive circuit driving said plurality of scanning lines, each of said plurality of image-signal-line drive circuits including: a timing controller that generates a control signal controlling itself and other image-signal-line drive circuit; and a master/slave selection circuit that sets itself as either a master mode image-signal-line drive circuit or a slave mode image-signal-line drive circuit based on a selection signal given from outside, wherein, from among said plurality of image-signal-line drive circuits, said master mode image-signal-line drive circuit gives said control signal to said slave mode image-signal-line drive circuit; and wherein each of said plurality of image-signal-line drive circuits further comprises an abnormality detecting circuit that detects an operation abnormality thereof, and when an abnormality is detected, said abnormality detecting circuit outputs a master/slave switching signal to said outside to change said selection signal, to switch said slave mode image-signal-line drive circuit to master mode, and to switch said master mode image-signal-line drive circuit to slave mode.