| 摘要 |
This application discloses a shift register. In particular, it discloses such a structure that each shift pulse generation unit which has pulse generation portions has a status signal generation circuit for outputting a status signal which shows a status that at least one pulse generation portion which belongs to this unit generated a pulse signal, to common wiring to which both of an earlier shift pulse generation unit and a later shift pulse generation unit than the corresponding shift pulse generation unit are connected, and a clock supply circuit for supplying a clock signal to the pulse generation portion which belong to this unit, and there is a period in which the clock supply circuit supplies the clock signal to the pulse generation portion and a period in which the clock signal is not supplied, and during the period in which the clock signal is supplied, the status signal which shows a status that at least one pulse generation portion which belongs to this shift pulse generation unit generated pulse signals is inputted from the earlier shift pulse generation unit than the shift pulse generation unit to which itself belongs, and the status signal which shows a status that the pulse generation portion which belongs to this shift pulse generation unit generated pulse signals is not inputted from the later shift pulse generation unit, and the status signal for showing such a status that the pulse generation portion generated pulse signals is a signal which is more difficult to be deteriorated on the common wiring than the pulse signal.
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