Shift register, method of controlling the same, electro-optical device, and electronic apparatus

A shifter register comprising:

• a transfer unit in which a plurality of transfer unit circuits, each having a storage unit and a writing unit, are connected in series, the storage unit having a hold gate and storing a logical level of a pulse when the hold gate is in an active state and the writing unit having a writing gate and writing a pulse in the storage unit when the writing gate is in an active state;
• and
• a control unit having a plurality of control unit circuits which are provided to correspond to the plurality of transfer unit circuits and control whether the hold gate and the writing gate are in an active state or a non-active state,
• wherein when the writing gate is shifted from an active state to a non-active state and the hold gate is shifted from a non-active state to an active state, the control unit circuit performs control such that the hold gate is shifted from the non-active state to the active state after performing control such that the writing gate is shifted from the active state to the non-active state, and
• when the writing gate is shifted from the non-active state to the active state and the hold gate is shifted from the active state to the non-active state, the control unit circuit performs control such that the writing gate is shifted from the non-active state to the active state after performing control such that the hold gate is shifted from the active state to the non-active state.