| 摘要 |
An active matrix display device having a display region consisting of sub-pixels arrayed in a matrix fashion, the sub-pixels having switching elements, comprising a plurality of data and scan signal lines, and common voltage lines for sending signals and a reference voltage to the sub-pixels, test transistors, each of which is connected to one of the plurality of scan signal lines for sending test signals thereto, and a plurality of input terminals, each of which is connected to one of a plurality of the test transistors, wherein each gate of the test transistors and each of the common voltage lines are connected to one of the input terminals, the test transistors control inputs of the test signals to the sub-pixels.
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