Signal line driving circuit, light emitting device, and method for driving the same

A signal line driver circuit comprising:

• a plurality of current source circuits corresponding to a plurality of wirings;
• and a shift register, characterized in that:
• two current source circuits each comprising capacitor means and supply means are arranged for each wiring;
• and
• the capacitor means of one of the two current source circuits converts a supplied current to a voltage in accordance with a sampling pulse supplied from the shift register, and the supply means of the other current source circuit supplies a current corresponding to the converted voltage.

A method of driving a light emitting device which is provided with:

• a pixel portion comprising a plurality of wirings and a plurality of pixels which are arranged in matrix;
• and a signal line driver circuit comprising a plurality of current source circuits respectively corresponding to the plurality of wirings and a shift register, characterized in that:
• one frame period comprises a plurality of subframe periods;
• the plurality of subframe periods each have an address period and a lightening period;
• in the address period, capacitor means of the plurality of current source circuits converts a supplied current into a voltage in accordance with a sampling pulse supplied from the shift register;
• and
• in the lightning period, supply means of the plurality of current source circuits supplies a current corresponding to the converted voltage to the pixels.

A method of driving a light emitting device which is provided with:

• a pixel portion comprising a plurality of wirings, a plurality of scanning lines, and a plurality of pixels which are arranged in matrix;
• and a signal line driver circuit comprising a plurality of current source circuits respectively corresponding to the plurality of wirings and a shift register, characterized in that:
• one frame period comprises a plurality of subframe periods;
• the plurality of subframe periods each have an address period and a lightening period;
• the lightning period has a setting operation period provided in a period during which any of the plurality of scanning lines is not selected;
• and
• in the setting operation period, capacitor means of the plurality of current source circuits converts a supplied current into a voltage in accordance with a sampling pulse supplied from the shift register.

A method of driving a light emitting device which is provided with:

• a pixel portion comprising a plurality of wirings, a plurality of scanning lines, and a plurality of pixels which are arranged in matrix;
• and
• a signal line driver circuit comprising a plurality of first current source circuits respectively corresponding to the plurality of wirings and a shift register, in which:
• the plurality of pixels each comprise a light emitting element, a second current source circuit, and a switch for controlling conductivity of the light emitting element and the second current source circuit;
• the first and the current source circuit each have capacitor means and supply means, characterized in that:
• one frame period comprises a plurality of subframe periods;
• the plurality of subframe periods each have an address period and a lightening period;
• the lightening period of the subframe period selected from the plurality of subframe period has a first or second setting operation period;
• in the first setting operation period, the capacitor means of the first current source circuit converts a supplied current into a voltage in accordance with a sampling pulse supplied from the shift register;
• and
• in the second setting operation period, the capacitor means of the second current source circuit converts a supplied current into a voltage.

A method of driving a light emitting device which is provided with:

• a pixel portion comprising a plurality of wirings, a plurality of scanning lines, and a plurality of pixels which are arranged in matrix;
• and
• a signal line driver circuit comprising a plurality of current source circuits respectively corresponding to the plurality of wirings and a shift register, in which:
• the plurality of pixels each comprise a light emitting element, a second current source circuit, and a switch for controlling conductivity of the light emitting element and the second current source circuit;
• the first and the current source circuit each have capacitor means and supply means, characterized in that:
• one frame period comprises a plurality of subframe periods;
• the plurality of subframe periods each have an address period and a lightening period;
• in the address period, the capacitor means of the first current source circuit converts a supplied current into a voltage in accordance with a sampling pulse supplied from the shift register;
• and
• in the subframe period selected from the plurality of subframe periods, the capacitor means of the second current source circuit converts a supplied current into a voltage.

A method of driving a light emitting device which is provided with:

• a pixel portion comprising a plurality of wirings, a plurality of scanning lines, and a plurality of pixels which are arranged in matrix;
• and
• a signal line driver circuit comprising a plurality of current source circuits respectively corresponding to the plurality of wirings and a shift register, in which:
• the plurality of pixels each comprise a light emitting element, a second current source circuit, and a switch for controlling conductivity of the light emitting element and the second current source circuit;
• the first and the current source circuit each have capacitor means and supply means, characterized in that:
• one frame period comprises a plurality of subframe periods;
• the plurality of subframe periods each have an address period and a lightening period;
• a first subframe period selected from the plurality of subframe periods has a first setting operation period provided in the period during which any of the plurality of scanning lines is selected;
• a second subframe period selected from the plurality of subframe periods has a second setting operation period;
• in the first setting operation period, the capacitor means of the first current source circuit converts a supplied current into a voltage in accordance with a sampling pulse supplied from the shift register;
• and
• in the second setting operation period, the capacitor means of the second current source circuit converts a supplied current into a voltage.

A method of driving a light emitting device which is provided with:

• a pixel portion comprising a plurality of wirings, a plurality of scanning lines, and a plurality of pixels which are arranged in matrix;
• and
• a signal line driver circuit comprising a plurality of current source circuits respectively corresponding to the plurality of wirings and a shift register, in which:
• the plurality of pixels each comprise a light emitting element, a second current source circuit, and a switch for controlling conductivity of the light emitting element and the second current source circuit;
• the first and the current source circuit each have capacitor means and supply means, characterized in that:
• one frame period comprises a plurality of subframe periods;
• the plurality of subframe periods each have an address period and a lightening period;
• in the lightening period, the capacitor means of the first current source circuit converts a supplied current into a voltage in accordance with a sampling pulse supplied from the shift register;
• the subframe period selected from the plurality of subframe periods has a setting operation period;
• and
• in the setting operation period, the capacitor means of the second current source circuit converts a supplied current into a voltage.

A method of driving a light emitting device which is provided with:

• a pixel portion comprising a plurality of wirings, a plurality of scanning lines, and a plurality of pixels which are arranged in matrix;
• and
• a signal line driver circuit comprising a plurality of current source circuits respectively corresponding to the plurality of wirings and a shift register, in which:
• the plurality of pixels each comprise a light emitting element, a second current source circuit, and a switch for controlling conductivity of the light emitting element and the second current source circuit;
• the first and the current source circuit each have capacitor means and supply means, characterized in that:
• one frame period comprises a plurality of subframe periods;
• the plurality of subframe periods each have an address period and a lightening period;
• the lightening period has a setting operation period provided in the period during which any of the plurality of scanning lines is not selected;
• in the setting operation period, the capacitor means of the first current source circuit converts a supplied current into a voltage in accordance with a sampling pulse supplied from the shift register;
• and
• in the address period, the capacitor means of the second current source circuit converts a supplied current into a voltage.

A method of driving a light emitting device which is provided with:

• a pixel portion comprising a plurality of wirings and a plurality of pixels which are arranged in matrix;
• and a signal line driver circuit comprising a plurality of current source circuits respectively corresponding to the plurality of wirings and a shift register, characterized in that:
• one frame period comprises a plurality of horizontal scanning periods;
• the plurality of horizontal scanning periods each have a setting operation period;
• in the setting operation period, capacitor means of the plurality of current source circuits converts a supplied current into a voltage in accordance with a sampling pulse supplied from the shift register.

A method of driving a light emitting device which is provided with:

• a pixel portion comprising a plurality of wirings and a plurality of pixels which are arranged in matrix;
• and a signal line driver circuit comprising a plurality of current source circuits respectively corresponding to the plurality of wirings and a shift register, characterized in that:
• one frame period comprises a plurality of horizontal scanning periods;
• the plurality of horizontal scanning periods each have a setting operation period;
• in the setting operation period, capacitor means of the plurality of current source circuits converts a supplied current into a voltage in accordance with a sampling pulse supplied from the shift register.

A method of driving a light emitting device which is provided with:

• a pixel portion comprising a plurality of wirings and a plurality of pixels which are arranged in matrix;
• and a signal line driver circuit comprising a plurality of current source circuits respectively corresponding to the plurality of wirings and a shift register, characterized in that:
• one frame period comprises a plurality of horizontal scanning periods and setting operation periods;
• in the setting operation period, the capacitor means converts a supplied current into a voltage in accordance with a sampling pulse supplied from the shift register.