摘要:
A lighting device which is arranged on motor vehicles and/or in interiors of motor vehicles is proposed. It includes an electroluminescent layer assembly comprising at least one first electrode layer, a dielectric layer, an electroluminescent luminous layer and a transparent second electrode layer, wherein the electroluminescent layer assembly is arranged on a support and/or in a frame and the electrode layers are connected to an a.c. voltage control device. Preferably the electroluminescent layer assembly with the support and/or frame as well as the a.c. voltage control device with components and wiring arranged on a printed circuit board which is connected to the support and/or simultaneously constructed as a support for the electroluminescent layer assembly, and if necessary a transparent cover covering the electroluminescent layer assembly, form a compact structural unit.
摘要:
A novel organic light-emitting pixel structure provides improved contrast pixels suitable for use in high-contrast passive- and active-matrix displays. A dark, low-reflectance film is placed on a reflective or transparent substrate, which acts to absorb and/or trap ambient light impinging on the pixel and improving its contrast between on and off states. Optical scattering is reduced by fabricating a vertical wall around each pixel which effectively blocks out light emitted from adjacent pixels, and prevents the scattering of the pixel's own emitted light. Light is emitted through a transparent upper electrode, which allows the substrate to be non-transparent. An active-matrix display is thus built on a single silicon substrate, with the crystalline silicon transistors needed to drive the active-matrix fabricated alongside their respective pixels, and with the walls surrounding the pixels formed from the drive circuitry itself.
摘要:
A light emitting flat-panel display includes a plurality of light emitting diodes; a sensor for sensing the light output of at least one of the light emitting diodes to produce a light output signal; and a display controller responsive to the light output signal for producing a signal representing the remaining useful life of the display.
摘要:
A data side driving IC incorporates pull-up elements and pull-down elements to be applied with modulating voltages of +½VM and −½VM, respectively. A scanning side driving IC incorporates pull-up elements to be applied with a positive write voltage of +VW from a positive voltage supply circuit, and pull-down elements to be applied with a negative write voltage of −VW from a negative voltage supply circuit. Each data electrode is driven by a positive voltage of +½VM or a negative voltage of −½VM. Each scanning electrode is controlled so that it is applied with a positive write voltage of +VW or a negative write voltage of −VW or it assumes a ground potential or a floating potential. Since the data electrodes and the scanning electrodes can be driven with high symmetry of positive and negative polarities, the long-term reliability can be enhanced, while at the same time the peripheral circuitry can be simplified.
摘要:
Control circuitry for an array of light emitting devices includes a first column line connected to each light emitting device in a column of light emitting devices. First column circuitry includes a first current source and a second current source. The first current source is connected to the first column line. The second current source is connected to the first column line. When a first light emitting device from the column of light emitting devices is to be turned on, the first current source is turned on until a voltage on the first column line is equal to a predetermined voltage. Then the first current source is turned off and the second current source supplies current sufficient to cause the first light emitting device to emit light to a first brightness level.
摘要:
A container for a beverage or other foods or household goods includes a wall with a display generating digital images). A controller is also provided associated with a memory, said memory storing digital imaging data. The controller selectively retrieves the data from the memory and generates electrical signals to the display. Data may also be transmitted from or received by the container through an external interface controlled by the controller. Switches, sensors and other selector elements may be provided to activate the display and to select the images to be shown. Additionally, miniature speakers may also be provided which cooperate with the display to show multimedia presentations.
摘要:
Display device designed to prevent surroundings from being adversely affected by noise includes an inner circuit board on which a support frame is mounted in a specific position. A liquid crystal panel is mounted on the support frame and held stationary by a frame. An EL panel for illuminating the liquid crystal panel is mounted behind the liquid crystal panel. An EL circuit board holding an EL driver circuit thereon is bonded to the bottom surface of the EL panel. A shielding plate is mounted on a top surface of the inner circuit board surrounded by the support frame, and is located opposite the EL panel. The shielding plate cuts off noise generated by the EL driver circuit. The EL panel is connected with electrodes on the EL circuit board via lead wires. An electrode on the EL circuit board and an electrode on the circuit board are connected via a contact member. Electric power and control signals are supplied via this contact member.
摘要:
An external mirror assembly for an automotive vehicle has a shell having an aperture. A mirror is carried by the shell, substantially occluding the aperture. The mirror assembly has a lighting element having an electroluminescent film electrically connected to a triggering device for energizing the film and illuminating the mirror assembly. The triggering device includes first and second switches for generating a series of high and low frequency pulses and a control device connected to each of the switch for triggering each of the switches to illuminate the lighting element in either a flashing or continuous pattern.
摘要:
An organic electroluminescence element is disclosed which comprises a cathode, a light emission layer containing a host compound and a dopant compound, and at least one first layer provided between the cathode and the light emission layer, wherein the dopant compound is a phosphorescent compound, and the first layer is comprised of a first material having a molecular weight of from 500 to 2000, a maximum fluorescence wavelength of not longer than 415 nm, and an F to (H+F) ratio F/(H+F) of from 0 to 0.9 in which F and H represent the fluorine atom number and the hydrogen atom number in the molecule of the material, respectively.
摘要:
Disclosed is a display device using a COF operating with a low driving voltage. The present invention includes a display panel, a COF having a connection part on which the display channel is placed and a chip part on which a chip is placed, data lines connected to the COF in a direction toward the chip, the data lines forming curves starting from the display panel, scan lines straightly connected to the COF, the scan lines starting from the panel in the direction toward the chip, scan line connection lines on the connection part, the scan line connection lines connecting the scan lines electrically to the COF, and data line connection lines on the connection part, the data line connection lines connecting the data lines electrically to the COF.