Seiko Epson Corporation

Seiko Espon Corporation

Intellectual Keystone Technology LLC

Takashi Miyazawa

Tokuro Ozawa

Masaya Ishida

Hayato Nakanishi

At a writing time, a first transistoris turned on so that a data signal Xj is supplied to one end of a capacitor. At this time, since a second transistoris turned off, driving current does not flow to an organic light emitting diode (OLED) device. A power supply voltage Vdd is supplied to the other end of a capacitor through a power supply line L. However, since the driving current does not flow at the writing time, the power supply voltage Vdd is not reduced by the wiring line resistance of the power supply line L. On the other hand, at an emission time, the first transistoris turned off and the second transistoris turned on. Therefore, the driving current is supplied to the OLED device

Electronic circuit, method of driving the same, electro-optical device, and electronic apparatus

A gate of a driving transistor is set to a offset level corresponding to the threshold of the driving transistor by an initializing current flowing between a source and a drain of the driving transistor or a compensating transistor for the driving transistor. A conduction state of the driving transistor is set according to a gate voltage of the gate of the driving transistor that corresponds to a data signal and the threshold of the driving transistor. A current of which a level corresponds to the conduction state and of which the direction is opposite to the direction of the initializing current flows through driving transistor.

Electronic circuit, method of driving the same, electronic device, electro-optical device, electronic apparatus, and method of driving the electronic device

An electro-optical device includes a light-emitting layer provided with a white light-emitting element; and a reflective filter layer that is located at one side of the light-emitting layer and is provided with a reflective color filter.

Electro-optical device, method of manufacturing the same, and electronic apparatus

A photoelectric conversion element includes a first electrode, a second electrode, and a photoelectric conversion element provided between the first electrode and the second electrode. The photoelectric conversion element includes a polymer. The polymer includes at least one light absorber which absorbs light and generates at least one kind of carrier. An end part of the polymer combines with a surface, which faces the second electrode, of the first electrode.

Photoelectric conversion element, method for manufacturing photoelectric conversion element, and electronic apparatus

The invention provides a method of driving an electro-optical device and an electronic apparatus which are capable of reducing the time for writing data without providing special circuits. In the electro-optical device pixel circuits having reset transistors for controlling an electric connection between drains and gates of driving transistors between the drains and the gates of the driving transistors are arranged on a display panel in a matrix. The pixel circuits arranged in a matrix are electrically connected to a scanning line driving circuit via scanning lines. The scanning line driving circuit sequentially switches on the reset transistors from the pixel circuit connected to first scanning lines in accordance with scanning line control signals supplied from a control circuit and then lets organic EL elements emit light.

Method of driving electro-optical device and electronic apparatus

A unit circuit includes a capacitive element having a first electrode, a second electrode, and a dielectric layer; a transistor having a gate electrode connected to the first electrode, a first terminal, and a second terminal connected to a driven element; a first switching element controlling electrical connection between the gate electrode of the transistor and the second terminal; and a second switching element connected to the second electrode. A potential of the first electrode is set to a predetermined potential higher by a threshold voltage of the transistor than a first potential by turning on the first switching element, and the potential of the first electrode is set to the first potential by supplying a first operation signal to the second electrode through the turned-on second switching element in a state that the first electrode is electrically isolated from the predetermined potential by turning off the first switching element.

Unit circuit, control method thereof, electronic device, electro-optical device, and electronic apparatus

An aspect of the present invention provides an electro-optical device including a plurality of scanning lines, a plurality of data lines, a plurality of power lines extending in a direction intersecting with the plurality of data lines, and a plurality of pixel circuits provided corresponding to intersections of the plurality of scanning lines and the plurality of data lines, wherein pixel circuits of the plurality of pixel circuits provided adjacent to each other along one of the plurality of data lines is coupled to one of the plurality of power lines.

Electro-optical device, method of driving the same, and electronic apparatus

Aspects of the invention can provide an electronic circuit that can include a first transistor having a first and second terminal between which a first channel region can be formed, and a second transistor having a third and fourth terminal between which a second channel region can be formed. In the electronic circuit, a gate voltage of the first transistor can be based on a programming current flowing from the first terminal to the second terminal during a first step, a reproducing current flowing from the second terminal to the first terminal during a second step, and a current level of the reproducing current corresponding to the gate voltage determined during the first step.

Electronic circuit, electro-optical device, electronic device and electronic apparatus

An electronic circuit drives a driven element. The electronic circuit includes a signal line, a unit circuit connected to the signal line, and a voltage supply line. The unit circuit includes a transistor, a switch, and a capacitive element. The transistor includes a gate terminal, a first terminal, a second terminal connected to the voltage supply line, and a channel between the first and second terminals. The switch controls electrical connection between the gate terminal and one of the first and second terminals. A conductive state between the first and second terminals is controlled by a gate voltage applied to the gate terminal. During a first period, the switch is changed from an off state to an on state. During a second period, the switch is changed to an off state.

Electronic circuit for driving a driven element of an imaging apparatus, electronic device, method of driving electronic device, electro-optical device and electronic apparatus

An electronic device includes a plurality of first wiring lines, a plurality of second wiring lines that intersect the plurality of first wiring lines, a plurality of unit circuits that are disposed so as to correspond to intersections between the plurality of first wiring lines and the plurality of second wiring lines, and a plurality of reference signal lines that supply reference signals to the plurality of unit circuits. Each of the plurality of unit circuits has a driven element that is driven by a driving voltage or a driving current, a driving unit that supplies the driving voltage or the driving current to the driven element, a switching element that controls electrical connection between an input terminal provided in the driving unit and one of the plurality of second wiring lines, and a capacitor element that has a first electrode connected to the input terminal and a second electrode connected to one of the plurality of reference signal lines, and accumulates a charge between the first electrode and the second electrode.

Electronic circuit, electronic device, method of driving electronic device, electro-optical device, and electronic apparatus

An electronic circuit, an electronic device, and an electronic apparatus are provided that are capable of display with good quality and reducing operation delay, and a method to drive the electronic circuit. First and second switching transistors are turned on and an operation voltage Vdx and a data-current Idata are transmitted to a holding capacitor. The conduction state of a driving transistor is set according to an electrical-charge amount corresponding to the data-current Idata held in the holding capacitor and a current that passes the driving transistor is transmitted to an organic EL element. Then, a first switch is turned off, a second switch and the second switching transistor are turned on, and a reset voltage Vr is transmitted to the holding capacitor, whereby the driving transistor is turned off and the organic EL element stops emitting light.

Electronic circuit, optoelectronic device, method for driving optoelectronic device, and electronic apparatus

A method of manufacturing a charged particle, comprising:

Method of manufacturing charged particle, charged particle, electrophoretic dispersion liquid, electrophoretic sheet, electrophoretic device and electronic equipment

Pixel circuitincludes a current programming circuitand voltage programming transistorsand. In order to set the tone of the light emission from the organic EL element, the first and second voltage programming transistorsandare set to the OFF and ON state, respectively, and voltage programming is carried out using a voltage signal Vout. Next, the states of the first and second voltage programming transistorsandare switched, and current programming is carried out using a current signal Iout.

Pixel circuit for a current-driven light emitting element

To provide an electronic circuit, a method of driving the electronic circuit, an electro-optical device, a method of driving the electro-optical device and an electronic apparatus, capable of reducing deviations in threshold voltages of transistors. A pixel circuitis constructed with three transistors of a driving transistor Trd, an adjusting transistor Trc and a switching transistor Trs, and two capacitors of a first capacitor Cand a second capacitor C. Further, a source of the adjusting transistor Trc is connected to a voltage supply line VL for supplying a driving voltage Vdd through a control transistor Q in common with the sources of the adjusting transistors Trc of other pixel circuits, the voltage supply line VL being provided at the right end side of an active matrix part.

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Suwa, Japan

Takashi Miyazawa