The invention provides a display device, comprising a first and a second baseboard opposite to each other, wherein the first baseboard is provided with a counterpoint structure and a first conductive layer, the second baseboard is provided with an insulation layer, a second conductive layer and is provided with a counterpoint area exposing the insulation layer. After the counterpoint and assemblyof the first and the second baseboards, the first conductive layer is corresponding to the counterpoint area. The invention further provides a method for measuring the counterpoint assembly bias of the display device, which inputs a counterpoint signal into one of the first and the second conductive layers and measures if the another conductive layer has a counterpoint signal, to quickly and accurately judge the quality of the display device.