Abstract: A pixel circuit including a light emitting element outputting a gray scale based on a current supplied thereto, a first transistor configured to control an amount of current supplied to the light emitting element based on a gray scale data voltage supplied to a gate electrode of the first transistor, a second transistor connected between the gate electrode of the first transistor and an initialization voltage, a third transistor connected between the gate electrode of the first transistor and a first terminal of the first transistor; a fourth transistor connected between the first terminal of the first transistor and the light emitting element, and a fifth transistor connected between a second terminal of the first transistor and a data line. The data line is selectively supplied with the gray scale data voltage and a power supply voltage for light emitting of the light emitting element to the fifth transistor.

Abstract: An optoelectronic device includes a driving transistor, a correction transistor, and a control circuit. The driving transistor adjusts a first current from a power supply based on a voltage stored in a first capacitor. The driving transistor supplies the adjusted first current to the light-emitting element. The correction transistor is electrically connected on a path of a second current flowing from the power supply to the first capacitor, and adjusts the second current based on a voltage stored in a second capacitor. The control circuit controls the second capacitor to store a gray scale voltage while the first current flows, and controls flow of the second current to update the voltage stored in the first capacitor while the first current is blocked.

Abstract: A light-emitting device includes a drive transistor for controlling the quantity of current supplied to a light-emitting element, a capacitor element electrically connected to a gate electrode of the drive transistor, and an electrical continuity portion for electrically connecting the drive transistor and the light-emitting element, these elements being disposed on a substrate. The electrical continuity portion is disposed on the side opposite to the capacitor element with the drive transistor disposed therebetween.

Abstract: A display device includes pixel circuits arranged in a matrix, each of the pixel circuits including: a light-emitting element; an optical sensor to detect luminance of light emitted from the light-emitting element; and a compensation control circuit including a first capacitor and a second capacitor, the first and second capacitors to maintain a second voltage applied to the compensation control circuit. The compensation control circuit controls the light-emitting element to constantly emit light having a luminance based on a first voltage during a first interval of a light emission interval. The compensation control circuit controls the amount of current supplied to the light-emitting element based on a detection result of the optical sensor and the second voltage maintained in the first and second capacitors during a second interval and a third interval of the light emission interval, respectively.

Abstract: A pixel circuit including a light emitting device configured to emit light in accordance with a current flowing thereto, a gradation control unit including a driving transistor configured to control light emission of the light emitting device, and a degradation compensating unit connected between the light emitting device and the gradation control unit and including a light receiving device, wherein a current flowing through the light receiving device varies according to the light emitted from the light emitting device, a compensating transistor configured to compensate for degradation of the light emitting device, wherein a gate electrode of the compensating transistor is connected to the light receiving device, and a compensating circuit configured to compensate for a threshold voltage of the compensating transistor.

Abstract: The pixel circuit includes a light-emitting element, an optical sensor for detecting a luminance of light emitted from the light-emitting element, and a compensation control circuit which controls the amount of the current supplied to the light-emitting element on the basis of a detection result of the optical sensor and a second voltage applied in a second interval different from a first interval with a predetermined length in which the light-emitting element is allowed to constantly emit light with a luminance based on a first voltage, and includes a first control circuit and a second control circuit where the first control circuit controls a first current amount for enabling the light-emitting element to emit light and the second control circuit controls a second current amount supplied to the light-emitting element.

Abstract: An electro-optical device includes a driving transistor, a first capacitor, a second capacitor, and a switching circuit. The driving transistor is connected between a power supply and an electrode of a light-emitting element. The first capacitor is connected between a gate and source of the driving transistor. The second capacitor stores a gray scale voltage. The switching circuit selectively connects the first capacitor and the second capacitor to the gate of the driving transistor. A control circuit applies the gray scale voltage to the second capacitor while the first capacitor is connected to the gate of the driving transistor by the switching circuit, and writes a source voltage of the driving transistor at the first capacitor while the second capacitor is connected to the gate of the driving transistor by the switching circuit.

Abstract: A display circuit includes a plurality of pixel circuits and a shared compensation transistor. Each pixel circuit includes a driving transistor to control light emission of a light emitter. The compensation transistor is to compensate the threshold voltages of the driving transistors of the pixel circuits.

Abstract: A voltage control circuit of a display device includes a first power line, a second power line, a third power line, and a filter circuit. The second power line is connected to the first power line at a central portion of a predetermined area. The third power line is in the predetermined area. The filter circuit is between the second and third power lines, and includes at least one element having a larger resistance value per unit length than a resistance value per unit length of at least one of the second or third power lines.

Abstract: A driving method of an electro-optic device includes initializing a gate voltage of a driving transistor; and performing a data write operation where a threshold voltage of the driving transistor is compensated by turning on a first transistor and a second transistor connected in series between a drain and a gate of the driving transistor and a voltage is provided to a capacity element connected to the gate of the driving transistor to hold a voltage of the compensated data signal as a gate voltage. The first transistor is at a drain side of the driving transistor and the second transistor is between the first transistor and a gate side of the driving transistor. When the data write operation ends, the second transistor is first turned off and, subsequently, the first transistor is turned off. The second transistor is again turned on after the first transistor is turned off.

Abstract: A display apparatus includes a scan line driver and a data line driver. The data line driver supplies data signals to turn on or off pixel circuits connected to selected scan lines. The pixel circuits are turned on or off in sub frames. For each scan line, the sub frames are assigned in the display period based on a reference point. During a preliminary period, the scan line driver selects a scan line and the data line driving circuit supplies a data signal to the pixel circuit based on the reference point. During the display period, the scan line driver selects scan line connected to the pixel circuit in synchronization with an initiation timing of each sub frame of the display period. The data line driver supplies the data signal to the pixel circuit based on the state of the sub frame corresponding to initiation timing.

Abstract: A display apparatus includes a display unit, a control unit, and a compensation unit. The compensation unit may compensate the display data when a sensing operation is performed on a target pixel circuit, the compensation unit compensating display data by setting a light emission amount of light emitting element of a target pixel circuit to be an amount obtained by subtracting a sensing light emission amount, which is a light emission amount of the light emitting element of the target pixel circuit during a sensing interval, from a display light emission amount, which is a light emission amount of the light emitting element of the target pixel circuit before the compensation.

Abstract: A light-emitting device includes a drive transistor for controlling the quantity of current supplied to a light-emitting element, a capacitor element electrically connected to a gate electrode of the drive transistor, and an electrical continuity portion for electrically connecting the drive transistor and the light-emitting element, these elements being disposed on a substrate. The electrical continuity portion is disposed on the side opposite to the capacitor element with the drive transistor disposed therebetween.

Abstract: A light-emitting device includes a drive transistor that controls a current to be supplied to a light-emitting element from a power supply line, an element continuity portion that electrically connects the drive transistor with the light-emitting element, an initializing transistor that is turned ON to diode-connect the drive transistor, and a connecting portion that electrically connects the drive transistor with the initializing transistor. The power supply line includes a first portion extending in a predetermined direction. The element continuity portion and the connecting portion are formed from the same layer as that of the power supply line and are located on one side along the width of the first portion across the drive transistor.

Abstract: A driving method of an electro-optic device includes initializing a gate voltage of a driving transistor; and performing a data write operation where a threshold voltage of the driving transistor is compensated by turning on a first transistor and a second transistor connected in series between a drain and a gate of the driving transistor and a voltage is provided to a capacity element connected to the gate of the driving transistor to hold a voltage of the compensated data signal as a gate voltage. The first transistor is at a drain side of the driving transistor and the second transistor is between the first transistor and a gate side of the driving transistor. When the data write operation ends, the second transistor is first turned off and, subsequently, the first transistor is turned off. The second transistor is again turned on after the first transistor is turned off.

Abstract: A display device includes an acquiring circuit, a calculator, and a delay controller. The acquiring circuit acquires a gray scale voltage of a gray scale value of a pixel. The calculator calculates a first delay correction value based on a voltage currently retained on a data signal line to which the gray scale voltage is output and a gray scale voltage to be subsequently output to the data signal line. The delay controller determines a timing when the gray scale voltage is to be output to the data signal line based on the first delay correction value.

Abstract: An optoelectronic device includes a driving transistor, a correction transistor, and a control circuit. The driving transistor adjusts a first current from a power supply based on a voltage stored in a first capacitor. The driving transistor supplies the adjusted first current to the light-emitting element. The correction transistor is electrically connected on a path of a second current flowing from the power supply to the first capacitor, and adjusts the second current based on a voltage stored in a second capacitor. The control circuit controls the second capacitor to store a gray scale voltage while the first current flows, and controls flow of the second current to update the voltage stored in the first capacitor while the first current is blocked.

Abstract: An electro-optical device includes a driving transistor, a first capacitor, a second capacitor, and a switching circuit. The driving transistor is connected between a power supply and an electrode of a light-emitting element. The first capacitor is connected between a gate and source of the driving transistor. The second capacitor stores a gray scale voltage. The switching circuit selectively connects the first capacitor and the second capacitor to the gate of the driving transistor. A control circuit applies the gray scale voltage to the second capacitor while the first capacitor is connected to the gate of the driving transistor by the switching circuit, and writes a source voltage of the driving transistor at the first capacitor while the second capacitor is connected to the gate of the driving transistor by the switching circuit.

Abstract: A light-emitting device includes a drive transistor for controlling the quantity of current supplied to a light-emitting element, a capacitor element electrically connected to a gate electrode of the drive transistor, and an electrical continuity portion for electrically connecting the drive transistor and the light-emitting element, these elements being disposed on a substrate. The electrical continuity portion is disposed on the side opposite to the capacitor element with the drive transistor disposed therebetween.

Abstract: An electroluminescence display device includes a controller which generates signals for controlling at least one pixel circuit during a first period and a second period. The controller controls current to a light-emitting element of the at least one pixel circuit based on a data voltage in the first period. The controller controls a supplying period of current to the light-emitting element based on a duty control voltage in the second period. The supplying period when the pixel circuit is driven at a first gray scale value is longer than that when the pixel circuit is driven at a second gray scale. The first gray scale value is greater than the second gray scale value.