Abstract: An image display is provided with a display area including pixels, each including illuminating means. A control circuit turns the illuminating means of the pixels on and off. A capacitance is provided having a first node connected to an input terminal of the control circuit. A display signal voltage generation circuit generates display signal voltages for the pixels, while a pixel drive voltage generation circuit generates pixel drive voltages for the pixels. In addition, a connecter is provided for connecting either one of the display signal voltages or the pixel drive voltages to a second node of the capacitance.

Abstract: An image display device includes pixel circuits, a power supply line, and a data line for supplying a data signal to the pixel circuits. The pixel circuits each include a light emitting element, a drive transistor for controlling light emission of the light emitting element, a storage capacitor provided between the data line and a gate electrode of the drive transistor, a both-end connection switch for connecting both ends of the storage capacitor to each other, and a current interruption switch for interrupting a path of a current flowing from the power supply line through the both-end connection switch. Before the data signal is supplied to each of the pixel circuits, the both-end connection switch connects the both ends of the storage capacitor to each other, and the current interruption switch is disconnected.

Abstract: The present invention provides an image display device that is capable of reducing the power consumption. The total power consumption of a level shifter is reduced by using a pulse of an oscillator circuit as an enable signal of a level shifter for amplifying the enable signal to be supplied to a group of level shifters. The image display device includes an oscillator circuit, a first level shifter, and a plurality of second level shifters, which are mounted on a substrate and formed with thin-film transistors. The plurality of second level shifters each has a shutdown function for reducing the power consumption of the level shifters. The shutdown function of the first level shifter is controlled by an output pulse of the oscillator circuit. The shutdown function of the group of second level shifters is controlled by an output pulse of the first level shifter.

Abstract: The present invention provides an image display device having about the same numbers of gate lines and data lines as before and capable of reducing the power consumption of a static memory during rewriting of a display image. In the configuration of the image display device, the drain electrode of a first transistor 15 included in a pixel circuit is connected to an input for setting a storing state of the static memory, the drain electrode of a second transistor 18 is connected to an input for resetting a storing state of the static memory, the source electrode of the first transistor is connected to a data line, the gate electrode of the first transistor included in a row of pixel circuits arranged parallel to gate lines is connected to one gate line of the plurality of gate lines, and the gate electrode of the second transistor included in another row of pixel circuits arranged adjacent to the row of pixel circuits is connected to the one gate line.

Abstract: A waveform generator can be constructed at a small area size using thin-film transistors and generates multiple triangular-wave voltage waveforms different from one another in phase, and an image display device that applies the waveform generator. A waveform generator that uses loop-form resistive wiring is provided on a substrate. The waveform generator supplies a triangular-wave voltage waveform or stepped voltage waveform of a voltage signal occurring in the loop-form resistive wiring to pixel circuits. The loop-form resistive wiring has multiple voltage supply switches that supply at least two kinds of voltages.

Abstract: An image display device includes signal lines; a video signal generating means which generates a video signal based on gray level information from the outside; a compensation signal generating means which generates a compensation signal based on the gray level information; a selecting means which alternately supplies the video signal and the compensation signal to the signal lines; and a plurality of pixel circuits which are connected to the signal lines. The compensation signal generating means generates the compensation signal based on the gray level information such that the larger the time integration of the potential of the video signal is, the smaller the time integration of the potential of the compensation signal is.

Abstract: An inexpensive organic electroluminescent display device is realized by using a data driver IC for liquid crystal that is used in a liquid crystal display device, as a driver of the organic electroluminescent display device. In an active-matrix organic electroluminescent display device that has a pixel circuit capable of controlling light emitting luminance per time in accordance with magnitude of a grey scale voltage, a control signal is supplied from a timing control IC to the data driver so that the polarity is reversed twice consecutively, or a control signal is supplied from the timing control IC to the data driver so that a mode of not reversing the polarity is selected. This control signal need not necessarily be provided in the timing control IC and may be formed in a circuit on a substrate that is not an IC.

Abstract: Provided is an image display device, which includes: a display area including a plurality of pixels each of which includes a self light-emitting element; and a plurality of signal lines for inputting an image voltage to each of the plurality of pixels, in which: each of the plurality of pixels includes a field-effect transistor for driving the self light-emitting element based on the image voltage which is input through each of the plurality of signal lines to each of the plurality of pixels; the display area is divided into at least two regions including a first region and a second region; and a (channel width-to-channel length) ratio of the field-effect transistor in the first region is smaller than the ratio of any field-effect transistor in the second region.

Abstract: An image display device includes a first drive mode and a second drive mode. When N indicates an integer equal to or larger than 2(N?2), a first to N-th frames are N successive frames, and j indicates an integer equal to or larger than 1. During a write period for a k-th (1?k?N) frame in the first drive mode, a scanning circuit sequentially selects a (k+N(j?1))-th display line, and a drive circuit supplies analog video voltages for the (k+N (j?1))-th display line to a plurality of signal lines. During a write period for all frames in the second drive mode, the scanning circuit sequentially selects all display lines, and the drive circuit supplies the analog video voltages for all the display lines to the plurality of signal lines.

Abstract: An image display device includes a plurality of pixels. Each of the plurality of pixels includes a self light-emitting element and a driving transistor configured to drive the self light-emitting element based on an inputted image voltage. The image display device also includes a current source configured to supply a constant current to the driving transistor and a detection section connected to a source electrode of a driving transistor of each of the plurality of pixels. The current source is connected to the source electrode of the driving transistor. The detection section detects a source voltage of the driving transistor to which the constant current is supplied during a detection period.

Abstract: In a light emitting display apparatus requiring power supply lines, excellent uniformity in display luminance is provided over a relatively large screen by disposing at least one of input terminals for the power supply lines between input terminals for signal lines.

Abstract: A display apparatus including: data lines; scanning lines arranged to cross the data lines; pixel circuits arranged along the data lines and the scanning lines, such that each of the pixel circuits corresponds to each of intersections between the data lines and the scanning lines; image signal lines for transmitting image signal; and switches, each arranged correspondingly to each of the data lines, for connecting each of the data lines to each one of the image signal lines, wherein the data lines are arranged such that adjacent two data lines are close to each other, and are connected simultaneously by the switches to different two of the image signal lines.

Abstract: A low price image display device which has a smaller number of mounted components and allows high-accuracy display, is provided by making proper use of both a high-accuracy, low-voltage DA converter IC and a DA converter circuit having high-voltage TFTs formed on an insulated substrate in accordance with a display signal value.

Abstract: Disclosed herewith an image display device capable of displaying high quality images and preferred for reducing the manufacturing cost. The image display device is provided with illuminating state controlling state for controlling the illuminating state or non-illuminating state and constant voltage supply for supplying a constant voltage to each pixel through a signal line when the illuminating state is selected for the pixel.

Abstract: Provided is an image display device including: a plurality of pixel scanning lines; a plurality of signal lines; and a plurality of pixel circuits corresponding to intersections between the pixel scanning lines and the signal lines. Each of the pixel circuits includes: a driver transistor; a light emitting element for emitting light based on the current supplied from the driver transistor; a pixel switch for generating a potential based on an image signal and a scanning signal; a capacitor element for controlling the driver transistor based on a potential difference caused by the potential supplied from the pixel switch; and a reset switch for setting a potential at an end of the capacitor element to a predetermined state based on a scanning signal supplied from one of the pixel scanning lines preceding the scanning signal which corresponds to the corresponding one of the plurality of pixel circuits.

Abstract: An image display device includes a display panel having plural pixels and a second board having a transmitting electrode, the display panel having a first substrate that is disposed so as to overlap the second board, each pixel having a pixel electrode and a counter electrode, and the counter electrode being formed in a planar shape and being commonly provided to the pixel electrodes of each pixel; the counter electrode being divided into a portion A corresponding to the transmitting electrode of the second board and a portion B other than it, and the portions A and B of the counter electrode being connected to a common voltage through resistors. The portion A of the counter electrode constitutes the receiving electrode, and the portion A of the counter electrode acting as the receiving electrode is connected to a receiving circuit in the display panel through a decoupling capacitor.

Abstract: Improvement is to be achieved against poor image quality attributable to voltage drops on wirings, and the image quality especially of large image display devices is to be ameliorated. The circuit configuration comprises a scanning circuit for controlling a plurality of pixel circuits; a plurality of scanning wirings for conveying the signals of the scanning circuit to the pixel circuits; a plurality of first and second wirings for supplying image signals and power to the pixel circuits, arranged in parallel to each other and crossing said scanning wirings; and a drive circuit for supplying image signals and power to the first and second wirings; all disposed over a glass substrate, wherein the drive circuit supplies power to both first and second wirings when the light-emitting devices emit light in response to image signals.

Abstract: A compressor (1) includes communication holes (83) penetrating through a valve plate (9) at positions opposite to regulation steps of a cylinder block (2) and communicating cylinder bores (3) and suction chamber (7), a rotary valve (71) configured to rotate with the drive shaft (10) and be in rotational slide contact with a suction chamber side of the valve plate (9) as covering the communication holes (83) of the valve plate (9). The rotary valve (71) is formed with a residual pressure release passage (71c). As the rotary valve (71) rotates, the residual pressure release passage (71c) connects by turns one of the communication holes (83) communicating with one of the cylinder bores (3) having finished discharge and another of the communication holes (83) communicating with another of cylinder bores (3) having lower pressure than the one of the cylinder bores (3).

Abstract: During a first period of a set period, a reset switch element of each pixel is turned on to converge a voltage at a control electrode of a TFT to a predetermined voltage, and a step signal having a first voltage level is supplied from a step signal generation circuit. During a second period of the set period, the reset switch element is turned off, and a step signal having a second voltage level is supplied from the step signal generation circuit, whereby a voltage exceeding a second power supply voltage or a voltage exceeding a voltage range supplied from a signal driver section is input as a characteristic value set voltage to the control electrode. Accordingly, even when a relationship between a gate voltage and a drain current of the thin film transistor exhibits a hysteresis characteristic, uniform display can be achieved.

Abstract: In order to restrain increase in frame area caused along with a larger number of channels to a minimum, there is provided an image display device that adopts a communication method in which a signal is transmitted/received with the use of electrostatic capacitance coupling. A first board includes: a tabular first power supply line, a tabular second power supply line, a semiconductor element, and a tabular first electrode group. A second board includes: a tabular second electrode group and a tabular common electrode. In a state where the first board and the second board are laid on each other, the first electrode group overlaps the second electrode group while one of the first power supply line and the second power supply line overlaps the common electrode.