Patent ID: 10074711

Abstract:
The present invention provides an AMOLED display device, which includes a cathode connection layer formed on a backing plate and provides connection between the cathode and the cathode connection layer through a via formed in and through structural layers thereof so that in a normal displaying operation of the AMOLED display device, an electrical current signal is conducted through the cathode connection layer to a cathode, achieving transmission of the electrical current signal through an interior of each pixel to the cathode, and making a conduction path of the electrical current signal shortened as compared to a conventional AMOLED display device and reducing electrical resistance of the conduction path of the electrical current signal, thereby lowering IR drop of a display circuit and helping improve displaying performance and power loss of the AMOLED display device. Further, since the cathode connection layer is disposed on the backing plate and the connection between the cathode and the cathode connection layer requires only one via, no much space of pixel arrangement will be occupied and thus no significant influence will be imposed on the entire pixel arrangement of the AMOLED display device.