Abstract: An image display device is provided in which the screen is partitioned into upper and lower areas both being driven simultaneously. Image data read out of a frame memory #1 is displayed in the upper area of the present screen and at the same time, image data of the preceding screen read out of a frame memory #3 is displayed in the lower area of the present screen. In the next screen, image data read out of a frame memory #2 is displayed in the upper area of the next screen and image data read out of the frame memory #1 is displayed in the lower area of the next screen. In this manner, the image data read out of the frame memory #1 is displayed consecutively over the present screen and the next screen.

Abstract: An organic EL display module includes a plurality of current supply lines extending to a first side of a substrate from a display region, a currently supply bus line connecting with a plurality of current supply lines on a peripheral region of the first side of the substrate, and a terminal pad formed on a peripheral region of a second side of the substrate which is opposite to the first side of the substrate. A current supply wiring connects the current supply bus line and the terminal pad, and the current supply wiring is provided on a peripheral region of a third side which is adjacent to the first and second side.

Abstract: A display module includes a pixel disposed in respective intersections between a plurality of scanning lines and a plurality of data lines, which lines are aligned in a matrix, and a current supply line that supplies electric current to the pixel, the pixel includes a data storage device for storing a data signal supplied from the data lines, and an emitting device that emits light by the electric current supplied by the current supply line according to the data signal stored in the data storage device. One terminal of the data signal storage device is connected to one of the scanning lines placed anteriorly of to the pixel that is being selected.

Abstract: It is an object to provide an organic light-emitting element having two or more light-emitting layers, wherein degradation of each constituent material for the light-emitting layer is reduced to improve reliability of the element. The present invention provides an organic light-emitting element having a laminated structure with a first mixed light-emitting layer 4 composed of a hole transport material, an electron transport material and a dopant which determines a color of an emitted light, and a second mixed light-emitting layer 5 composed of a hole transport material, an electron transport material and a dopant which determines a color of an emitted light, and also provides an image display device which uses the organic light-emitting element.

Abstract: This display module performs a high quality display by preventing the effect resulting from a residual charge of a data signal in the previous scanning remaining in a capacitor of a pixel circuit.

Abstract: An active matrix type display includes a light emission device having a transparent pixel electrode and a metal pixel electrode on both surfaces of a light emitting layer and a driving circuit controlling the driving current of the light emission device. The driving circuit is formed on a substrate, and the light emission device is formed as a layer above the driving circuit with an intermediate layer of insulation material interposed therebetween. The metal pixel electrode device is connected with the driving circuit through a conduction portion which extends through the intermediate layer. Thus, light emitted from the light emission device can be prevented from reaching transistors by locating the transistors below the metal pixel electrode, and leakage current produced by the light of a transistor in the off state can be suppressed to prevent degradation of the image quality.

Abstract: An organic LED (OLED) display device and an operating method of driving the same. In an OLED image display device, one switch transistor is provided in one pixel. For at least a part of an OFF period of time of the switch transistor, the OLED is in the non-light emission state, and also the bias of the polarity reverse to that in the light emission is applied to the OLED.

Abstract: An organic light emitting diode (OLED) display module is provided wherein the aperture ratio of the respective pixels thereof improves and such display faults as line defect is prevented so as to allow image to be displayed with high quality. The display module is provided with a capacitor, a first terminal of which is connected to an output terminal of the first transistor as selected by the scanning line and a second terminal of which is connected to the gate placed anterior thereto, wherein the electric current is supplied to an organic emitting device in response to the data signal as supplied from the data line through the second transistor, which turns into on-state condition when the first transistor is put into an off-state condition, and as stored in the capacitor.

Abstract: A scanning line, a signal line, a first current supply line, and a second current supply line are formed on a glass substrate, a first electrode is formed on the wiring layer comprising the above members, an organic layer comprising a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer is formed on the first electrode, a second electrode is formed as cathode on the electron injection layer, the first electrode as anode is connected to a plus terminal of a power source through the driving devices and the first current supply line, whereas the second electrode as cathode is connected to a minus terminal of the power source, and is connected to the second current supply line in the display region of each pixel, with a contact hole serving as a feeding point, whereby wiring resistance due to the second electrode is reduced, and variations in the brightness of a panel is reduced.

Abstract: The pixels of a top emission display include a light emission device having a transparent pixel electrode and a metal pixel electrode on both surfaces of a light emitting layer and a driving circuit controlling the driving current of the light emission device. The driving circuit is formed on a substrate, and the light emission device is formed as a layer above the driving circuit with an intermediate layer of insulation material interposed therebetween. The transparent pixel electrode is situated opposite to the substrate. The metal pixel electrode device is connected with the driving circuit through a conduction portion which extends through the intermediate layer. Thus, light emitted from the light emission device can be prevented from reaching transistors by locating the transistors below the metal pixel electrode, and leakage current produced by the light of a transistor in the off state can be suppressed to prevent degradation of the image quality.

Abstract: An image display apparatus includes a display having data holding function, a vertical drive circuit sequentially and selectively scanning matrix form display elements, and a horizontal drive circuit writing a voltage among binary voltage preliminarily assigned depending upon the digital data of the image signal. The horizontal drive circuit and the vertical drive circuit are operated for performing selective scan of respective display element for at least m times in one frame period. The vertical drive circuit is constituted of n number of sequence circuits and logic operation circuits for outputs of the sequence circuits, where n is smaller than m, a period from inputting to the sequence circuit to outputting from the final stage being less than or equal to half of one frame period, and at least one of the sequence circuits being used with selectively inputting a plurality of inputs.

Abstract: An organic LED (OLED) display device and an operating method of driving the same. In an OLED image display device, one switch transistor is provided in one pixel. For at least a part of an OFF period of time of the switch transistor, the OLED is in the non-light emission state, and also the bias of the polarity reverse to that in the light emission is applied to the OLED.

Abstract: A scanning line, signal line, first current supply line, and second current supply line are formed on a glass substrate. A first electrode is formed thereon; and, an organic layer, including a hole transport layer, light-emitting layer, electron transport layer, and electron injection layer is formed on the first electrode. A second electrode is formed as a cathode on the electron injection layer. The first electrode, serving as an anode, is connected to a plus terminal of a power source through driving devices and first current supply line, whereas the second electrode is connected to a minus terminal of the power source and is connected to the second current supply line in the display region of each pixel, with a contact hole serving as a feeding point, whereby the wiring resistance of the second electrode is reduced, and variations in the brightness of the panel is reduced.

Abstract: An emissive display having pixels delimited by a plurality of scan lines and a plurality of signal lines intersecting with each other. Each pixel includes a memory circuit having at least a first inverter circuit including an electroluminescent device and including a display control circuit connecting in series a main circuit of at least one first transistor. The memory circuit stores display information of the pixel according to a conduction state or a non-conduction state of the main circuit of the first inverter, and controls an on state and an off state of the electroluminescent device.

Abstract: An image display device comprising a current-driven electro optic display element in which a plurality of picture elements has a light-emitting layer that has a transparent picture element electrode and a metal picture element electrode therebetween, wherein each picture element has a driving circuit which is connected to a vertical scanning circuit that includes a sequential circuit through a scanning wire and to a horizontal driver through a data wire and either one of above two electrodes is connected to a wire placed in parallel to said scanning wire and a terminal of said wire is, through a switching device, selectively connected to an electric power source that gives an electric potential for the purpose of applying a voltage necessary to drive the above optic display element or to another electric power source that gives an electric potential of which polarity is reverse to a voltage applied in emitting operation.

Abstract: A practical-purpose structure of an active-matrix display device digitally driven with vertical scanning being multiplexed includes a vertical driver having sequential circuits and logic circuits provided on a bit-by-bit basis and arranged for adding sequentially products of outputs of the sequential circuit/logic circuit and a control signal for dividing a horizontal scanning period, and a horizontal driver having line latches provided on a bit-by-bit basis and arranged for adding sequentially products of outputs of the line latches and the control signal for dividing the horizontal scanning period. Enhanced luminance of display, manufacturing at low cost and high image quality can be realized with a reasonable wiring density.

Abstract: An image display apparatus includes a plurality of scanning wires in an image display region for transmitting a scanning signal, a plurality of signal wires intersecting the plurality of scanning wires in the image display region for transmitting a signal voltage, a plurality of current driven electro-optical display elements each arranged in a pixel region surrounded by the wires connected to a common power supply, a plurality of driving elements in the pixel region connected with the electro-optical display elements and a plurality of memory control circuits for holding the signal voltage in response to the scanning signal to control driving of the driving elements based on the held signal voltage. The memory control circuit samples and holds the signal voltage while blocking a bias voltage from being applied to the driving elements, and subsequently applies the driving elements with the held signal voltage as the bias voltage.

Abstract: An emissive display using an organic electroluminescent device is provided, in which the pixel circuit is simplified, the aperture ratio is increased, high resolution is achieved, and the power consumption is reduced. In the configuration, among the two sets of inverter circuits, one set of inverter circuit is formed by a circuit connecting an organic electoluminescent device and a transistor in series, and a transistor of a memory circuit is omitted. Also, in the mutual connection of the two sets of inverters, display data is inputted to a line connected to the gate of the transistor connected in series with the organic electoluminescent device, and owing to this connection, the write load is reduced, and the high resolution is achieved by enabling to write at high speed.

Abstract: An organic LED (OLED) display device and an operating method of driving the same. In an OLED image display device, one switch transistor is provided in one pixel. For at least a part of an OFF period of time of the switch transistor, the OLED is in the non-light emission state, and also the bias of the polarity reverse to that in the light emission is applied to the OLED.

Abstract: As each of sampling switch elements turns on in response to a scanning signal, a signal voltage from a signal wire is held on and written into a sampling capacitor. At this time, the signal voltage is held on the sampling capacitor on the basis of a common electrode. As the scanning signal transitions from high level to low level, each of the sampling switch elements turns off and changes into a floating state in which the sampling capacitor is electrically insulated from the signal wire and a driving TFT. As the scanning signal changes from high level to low level, each of the driving switches becomes conductive so that the signal voltage held on the sampling capacitor is applied as it is between the source and gate of the driving TFT as a bias voltage to make the driving TFT conductive, causing an organic LED to emit light.