Display device

A display device, comprising:

• a data signal line;
• a plurality of pixel circuits, which are connected to the data signal line and arranged in order;
• a plurality of gate signal lines arranged in the arrangement order, each of which extends between adjacent ones of the plurality of pixel circuits and is connected to pixel circuits disposed on one side;
• a gate signal line driving circuit for selecting any one of a forward direction and a reverse direction to the arrangement order as time passes, and outputting a plurality of gate signals that are controlled to an ON voltage sequentially in the selected direction, to the plurality of gate signal lines arranged in the arrangement order;
• a data signal line driving circuit for selecting one of the plurality of pixel circuits and supplying a display control voltage corresponding to display data of the selected pixel circuit to the data signal line;
• and
• a reference voltage line driving circuit for supplying a reference voltage corresponding to each of the plurality of pixel circuits to the each of the plurality of pixel circuits, wherein:
• the gate signal output to each of the plurality of gate signal lines is controlled to the ON voltage in a period in which the data signal line driving circuit supplies, to the data signal line, a display control voltage corresponding to display data of a pixel circuit connected to the each of the plurality of gate signal lines, and in a predetermined period prior to the period;
• each of the plurality of pixel circuit comprises a pixel electrode, a reference electrode to which the reference voltage corresponding to the each of the plurality of pixel circuits is supplied, and a switching element which is provided between the data signal line and the pixel electrode and is controlled by the gate signal;
• and
• the reference voltage line driving circuit selects and supplies one of a reference voltage for forward direction and a reference voltage for reverse direction to the reference electrode of the each of the plurality of pixel circuits in accordance with whether the gate signal line driving circuit outputs the plurality of gate signals in the one of the forward direction and the reverse direction to the arrangement order,
• wherein the reference voltage line driving circuit comprises:
• a storage portion for storing voltage information for determining the reference voltage for forward direction and the reference voltage for reverse direction;
• and
• a generation circuit for generating the reference voltage corresponding to the each of the plurality of pixel circuits based on the voltage information,
• wherein:
• the reference voltage for forward direction and the reference voltage for reverse direction each comprise a direct voltage;
• and
• the voltage information comprises an average value between the reference voltage for forward direction and the reference voltage for reverse direction, and a half value of a difference value between the reference voltage for forward direction and the reference voltage for reverse direction.

A display device, comprising:

• a data signal line;
• a plurality of pixel circuits, which are connected to the data signal line and arranged in order;
• a plurality of gate signal lines arranged in the arrangement order, each of which extends between adjacent ones of the plurality of pixel circuits and is connected to pixel circuits disposed on one side;
• a gate signal line driving circuit for selecting any one of a forward direction and a reverse direction to the arrangement order as time passes, and outputting a plurality of gate signals that are controlled to an ON voltage sequentially in the selected direction, to the plurality of gate signal lines arranged in the arrangement order;
• a data signal line driving circuit for selecting one of the plurality of pixel circuits and supplying a display control voltage corresponding to display data of the selected pixel circuit to the data signal line;
• a reference voltage line driving circuit for supplying a reference voltage corresponding to each of the plurality of pixel circuits to the each of the plurality of pixel circuits, wherein:
• the gate signal output to each of the plurality of gate signal lines is controlled to the ON voltage in a period in which the data signal line driving circuit supplies, to the data signal line, a display control voltage corresponding to display data of a pixel circuit connected to the each of the plurality of gate signal lines, and in a predetermined period prior to the period;
• each of the plurality of pixel circuit comprises a pixel electrode, a reference electrode to which the reference voltage corresponding to the each of the plurality of pixel circuits is supplied, and a switching element which is provided between the data signal line and the pixel electrode and is controlled by the gate signal;
• and
• the reference voltage line driving circuit selects and supplies one of a reference voltage for forward direction and a reference voltage for reverse direction to the reference electrode of the each of the plurality of pixel circuits in accordance with whether the gate signal line driving circuit outputs the plurality of gate signals in the one of the forward direction and the reverse direction to the arrangement order,
• wherein the reference voltage line driving circuit comprises:
• a storage portion for storing voltage information for determining the reference voltage for forward direction and the reference voltage for reverse direction;
• and
• a generation circuit for generating the reference voltage corresponding to the each of the plurality of pixel circuits based on the voltage information,
• wherein:
• the reference voltage for forward direction and the reference voltage for reverse direction each comprise an alternating voltage that repeats Low voltage and High voltage alternately at a predetermined cycle, the High voltage being higher than the Low voltage by a predetermined amplitude value;
• and
• the voltage information comprises an average value between a center value of the reference voltage for forward direction and a center value of the reference voltage for reverse direction, a half value of a difference value between the center value of the reference voltage for forward direction and the center value of the reference voltage for reverse direction, and a half value of the predetermined amplitude value, the center value being an average value between the Low voltage and the High voltage of the alternating voltage.