Abstract: A semiconductor device including a plurality of circuits that includes a transistor, where a semiconductor layer forming the transistor includes a first contact pad, a first part that is connected to the first contact pad and that extends in a direction intersecting a short direction of a pitch with which the circuits are arranged, a second part that extends from the first part in the short direction, and a second contact pad including the first part and the second part that are provided between the first contact pad and the second contact pad, where the second part overlaps an electrode layer across an insulating layer.

Abstract: A light emitting apparatus wherein, after setting a voltage of a light emitting luminance into a gate of the driving transistor, until setting a light emission controlling transistor at an electrically conducting state, a control signal changing toward a voltage of an opposite electrode of the light emitting element is supplied to the other terminal of the capacitor constructed such that an electro-conductive layer supplied with the control signal and a semiconductor layer forming the terminal of the driving transistor at the side of the light emitting element, a semiconductor layer forming a terminal of a transistor different from the driving transistor and connected to the terminal of the driving transistor at the side of the light emitting element, or an electro-conductive layer connected to the terminal of the driving transistor at the side of the light emitting element are formed so as to face through an insulating layer.

Abstract: A liquid discharge device including a discharge unit including: an elastic discharge part including a storage chamber at least partially formed of an elastic component, a supply hole which leads to the storage chamber and through which liquid is supplied to the storage chamber, and a discharge hole through which the liquid is discharged; and an actuating unit configured to vary a volumetric capacity of the storage chamber. The liquid discharge device further includes: a pressurizing unit configured to pressurize the liquid to be supplied to the storage chamber to a pressure within a stable range; a supply control unit configured to control whether the pressurized liquid is supplied to the storage chamber; and an actuation control unit configured to control operation of the actuating unit.

Abstract: A display apparatus includes a plurality of pixels arranged in two-dimensions, each pixel including a pixel circuit and a light emitting element for emitting light at a luminance corresponding to a data signal, a data line, connected to each pixel circuit, for writing the data signal, and a light emitting period control signal line for supplying a light emitting period control signal. Each pixel circuit includes a light emitting element drive unit for supplying a current or voltage corresponding to the data signal to the light emitting element, and a light emitting period control unit for controlling a light emitting period of the light emitting element by the light emitting period control signal. The light emitting period control signals have two or more light emitting period control signals, and the respective pixels are divided into two or more groups by grouping the respective pixels disposed in a same row at least into a same group.

Abstract: A display apparatus includes a matrix of light emitting elements, a plurality of drive circuits provided for driving the light emitting elements, a plurality of scanning lines to which a scanning signal is applied to select the drive circuits on a row basis, a plurality of control lines to which a light-emission control signal is applied to determine an emission period of the light emitting elements, and a plurality of data lines to which image signals are applied to define brightness of the light emitting elements on a column basis. The scanning signal is sequentially applied to the scanning lines in a field so that the image signals of the data lines are programmed in the drive circuits, and the light-emission control signal is sequentially applied to the control lines to make the light emitting elements emit light with brightness corresponding to the image signal programmed to the drive circuit.

Abstract: A liquid discharge device including a discharge unit including: an elastic discharge part including a storage chamber at least partially formed of an elastic component, a supply hole which leads to the storage chamber and through which liquid is supplied to the storage chamber, and a discharge hole through which the liquid is discharged; and an actuating unit configured to vary a volumetric capacity of the storage chamber. The liquid discharge device further includes: a pressurizing unit configured to pressurize the liquid to be supplied to the storage chamber to a pressure greater than atmospheric pressure; a supply control unit configured to control whether the pressurized liquid is supplied to the storage chamber; and an actuation control unit configured to control operation of the actuating unit.

Abstract: In a light emitting apparatus including a plane-shape light emitting area, a power supply area extending along the light emitting area, and a power supply voltage feeding part configured to feed a power supply voltage to the power supply area. The power supply area supplies a current to the light emitting area across an edge of the power supply area facing the light emitting area. The power supply voltage feeding part is connected to a power supply port provided on another edge of the power supply area opposite to the light emitting area. The power supply area includes a first non-conductive area surrounded by a conductive area located on a shortest path from the power supply port to the edge of the power supply area facing the light emitting area.

Abstract: A display apparatus includes data lines, scanning lines arranged to cross the data lines, and pixel circuits aligning along the data lines and the scanning lines, such that one of the pixel circuits corresponds to each intersection between the data lines and the scanning lines. In addition, image signal lines transmit image signals, and switches connect the data lines to the image signal lines so that each of the data lines is connected to one of the image signal lines. The data lines are arranged such that adjacent data lines form a pair of data lines, and adjacent pairs of data lines are spaced apart from each other by two columns of pixel-circuits. Respective data lines of the pair of data lines are connected by the switches to two different image signal lines, and the switches connecting the pair of data lines to corresponding image signal lines are activated simultaneously.

Abstract: A display apparatus includes a pixel circuit, a scanning line for supplying a scanning signal to the pixel circuit, a data line for supplying a data signal to the pixel circuit, and a shift register circuit having a number of stages, with every stage outputting the scanning signal to the scanning line. In addition, a first power supply supplies a voltage to the shift register circuit, and a second power supply supplies a voltage to the pixel circuit. After the first power supply is turned on, a constant level signal of either “H” or “L” is input into a terminal of the shift register circuit by clocks of the number of stages of the shift register such that every stage of the shift register outputs a same level signal before the second power supply is turned on.

Abstract: A driving circuit for a light-emitting device outputs a drive current from an output terminal to the light-emitting device in accordance with a signal current input from an input terminal. The driving circuit includes a drive transistor, a capacitor connected between a gate and a source of the driving transistor, and a resistance device and a first switch arranged in series between a drain of the drive transistor and the input terminal. In addition, a second switch is configured to connect the gate and the drain of the drive transistor through the resistance device when the first switch is closed, and a third switch is disposed in a path through which a drain current of the drive transistor flows from the output terminal to the light-emitting device. The resistance device increases its resistance in accordance with a cumulative amount of a passing current.

Abstract: An organic EL display apparatus comprises a plurality of pixels, each having first and second sub pixels; an organic EL element provided for each sub pixel; a data line driver; a pixel circuit; and a gate line driver. Each pixel includes a first organic EL element arranged in a first sub pixel emitting light of the same color; and a second organic EL element arranged in a second sub pixel. The light-extraction efficiency of the second sub pixel is higher than that of the first sub pixel. At least one of a plurality of transistors applies a drive current. The reference voltage line driver supplies a reference voltage to a gate terminal of the drive transistor to perform gradation displaying on the first organic EL element at a light emitting level, and to perform gradation displaying on the second organic EL element by controlling the light emitting period.

Abstract: An organic EL display apparatus includes a plurality of pixels, organic EL devices, a data line driver, a pixel circuit, and a gate line driver. Each pixel has three or more organic EL device groups, each organic EL device group consisting of two organic EL devices emitting light of the same color; and emits light of three or more colors. The two organic EL devices are a first organic EL device having a light condensing element arranged on the light emitting surface side and a second organic EL device not having a light condensing element arranged on the light emitting surface side. Each pixel has a luminance difference forming unit for varying the luminance ratio of each color in the first organic EL device and the luminance ratio of each color in the second organic EL device.

Abstract: Provided is a display apparatus that can select either an “outdoor visibility mode” or a “wide viewing angle mode” or either a “power saving mode” or a “wide viewing angle mode” depending on a user scene; that can also select intermediate states between the two modes; and provide high displayed image quality. An organic electroluminescent display apparatus of the present invention includes a plurality of pixels, an organic electroluminescent element, a data line driver, a pixel circuit, and a gate line driver, in which each pixel includes two organic electroluminescent elements that emit light of the same color, an element with high light-collecting property is disposed over a light emission side of only one of the two organic electroluminescent elements, and units that make a difference in lighting times or drive currents between the two organic electroluminescent elements are included.

Abstract: An organic EL displaying apparatus which suppresses a defective display caused by a leak current at a time when an emission period controlling transistor is off is provided. The organic EL displaying apparatus comprises a plurality of pixels each of which includes an organic EL element, a power supply line, a driving transistor and the emission period controlling transistor, a data line, and a control line. In this apparatus, in a certain one of the pixels, a resistance Roff—ILM between source and drain electrodes of the emission period controlling transistor in an off state of the emission period controlling transistor, and a resistance Rbk—Dr between source and drain electrodes of the driving transistor in a state that a minimum gradation displaying data voltage has been applied to a gate electrode of the driving transistor satisfy Roff—ILM?Rbk—Dr.

Abstract: In a display apparatus, at least three light emitting elements included in each pixel are classified into a light emitting element(s) of which anode(s) is the common electrode and a light emitting element(s) of which cathode(s) is the common electrode. The combination of classification of at least three light emitting elements is a combination that minimizes a difference between the total value of current flowing, during an emission in the maximum luminance, in the light emitting element(s) of which anode(s) is the common electrode and the total value of current flowing, during an emission in the maximum luminance, in the light emitting element(s) of which cathode(s) is the common electrode.

Abstract: An image display device includes: a light-emitting element that emits light corresponding to an amount of current in an emission period; a storage capacitor to which a display potential is supplied to one end thereof before the emission period and which stores a voltage corresponding to the display potential; a driving transistor that adjusts an amount of current flowing in a drain electrode thereof in accordance with the voltage stored by the storage capacitor; a lighting control switch which is connected in series with the light-emitting element from the drain electrode of the driving transistor and which is turned on in the emission period; and a discharge switch that connects a node in a current path from the driving transistor to the light-emitting element, through which a current flows when the lighting control switch is turned on, to a wiring that supplies a discharge potential before the emission period.

Abstract: A gradation display apparatus includes: a plurality of pixels, each including a light emitting element, a driving transistor, and a storage capacitor; a data line; a reference voltage line; and a control circuit. During a one frame period, the control circuit supplies a data voltage to each of the pixels through the data line, to write the data voltage in the storage capacitor, and, thereafter, supplies to the reference voltage line respectively different first and second voltages successively in this order or reversed order, so that, in each of the pixels, a sum of a light emitting quantity of the light emitting element during a period of supplying the first voltage and a light emitting quantity of the light emitting element during a period of supplying the second voltage equals to a predetermined light emitting quantity of the light emitting element predetermined according to image data.

Abstract: A display device including self-luminous emitting elements configured to suppress a display unevenness due to a transistor variation and reduce a noise when transmitting a gradation data to a pixel circuit, wherein the pixel circuit includes a driving transistor and a first switch transistor electrically connecting a gate electrode of the driving transistor with a drain electrode thereof, in which the gate electrode of the first switch transistor can be electrically connected to a data line, and the gate electrode controls a time period for which the first switch transistor conducts according to the gradation data and writes the gradation data on the pixel circuit.

Abstract: In a light emitting apparatus including a plane-shape light emitting area, a power supply area extending along the light emitting area, and a power supply voltage feeding part configured to feed a power supply voltage to the power supply area. The power supply area supplies a current to the light emitting area across an edge of the power supply area facing the light emitting area. The power supply voltage feeding part is connected to a power supply port provided on another edge of the power supply area opposite to the light emitting area. The power supply area includes a first non-conductive area surrounded by a conductive area located on a shortest path from the power supply port to the edge of the power supply area facing the light emitting area.

Abstract: The display apparatus includes a light emitting element, a transistor that determines a current supplied from a power supply line to the light emitting element depending on a gate voltage of the transistor, a capacitor that holds the gate voltage of the transistor, a first circuit unit configured to allow the capacitor to hold a voltage of a data line, and a switch operable to cut off the current. The display apparatus further includes a second circuit unit that operates such that when a change occurs in voltage across the light emitting element as a result of turning off the current, a voltage proportional to the difference in the voltage across the light emitting element with respect to the voltage obtained before the current was cut off is added to the voltage held in the capacitor, and a resultant voltage is applied to the gate of the transistor.