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7612743 |
Electron emission display (EED) with decreased signal distortion and method of driving EED
An Electron Emission Display (EED) with decreased signal distortion has a data driver to convert data driving signals into display data signals having predetermined data voltage levels and to...
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7542016 |
Electron emission device (EED) with low background-brightness
An Electron Emission Device (EED) that can reduce background-brightness resulting from collisions between anodes and only a few electrons when data is not supplied to an electron emission display...
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7535439 |
Display device and method for driving a display device
A display device driver constructed of scanning selection switches corresponding to a plurality of scanning wiring lines, a non-selection switch which brings the scanning wiring line into a...
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7525518 |
Image display apparatus
An image display apparatus includes an image display devices driven in a matrix by a plurality of row wirings and column wirings, a scanning circuit for sequentially selecting and scanning the row...
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7522131 |
Electron emission display (EED) device with variable expression range of gray level
An Electron Emission Display (EED) device, adapted to of adjust a pulse width of data signal according to an active pulse width of a horizontal synchronization signal, includes: a scan driver, a...
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7492335 |
Discharge of a field emission display based on charge accumulation
A field emission device ( 100 ) is provided for reducing power and audible noise during discharging of dielectric surfaces ( 137, 138 ). The field emission device ( 100 ) comprises an anode ( 122 )...
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RE40490 |
Method and apparatus for programmable field emission display
A method and apparatus for programmable field emission display comprising an array of cathodoluminescent elements. Each cathodoluminescent element in the array is responsive to separate select...
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7405711 |
Fixed-pixel display device and cold cathode field electron emission display device
A fixed pixel display device has a construction such that the leading-edge and trailing-edge waveforms of a voltage to be applied to a data electrode can be made steep. The fixed pixel display...
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7403175 |
Methods and systems for compensating row-to-row brightness variations of a field emission display
Methods for compensating for brightness variations in a field emission device. In one embodiment, a method and system are described for measuring the relative brightness of rows of a field emission...
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7403178 |
Sources driver circuit for active matrix electroluminescent display and driving method thereof
Provided is a source driver circuit for an active matrix electroluminescent (EL) display including a digital-to-analog converter/ramp circuit for converting a digital signal into an analog signal,...
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7388561 |
Characteristics adjustment method of image forming apparatus, manufacturing method of image forming apparatus and characteristics adjustment apparatus of image forming apparatus
There is provided a characteristic adjustment method for an image forming apparatus that is provided with a multi-electron source in which a plurality of electron-emitting devices are electrically...
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7379079 |
Electron emission device and driving method thereof
An electro emission device (EED) operated by a driver for modulating the pulse width of a driving pulse according to a pulse width modulation (PWM) clock signal to control the brightness of images....
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7358933 |
Electron emission display and driving method thereof
An electron emission display includes a display panel having a first substrate on which at least one first electrode is formed, a second substrate on which a second electrode and a third electrode...
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7348531 |
Photoelectric conversion device and image pickup device using electron emission devices
Disclosed is an image pickup device capable of greatly reducing delay in drive signals supplied to field emission devices, and cross-talk and the like that originate in these drive signals. The...
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7336245 |
Display for using pulse width modulation to represent brightness and gray scales
An electron emission device (EED) includes a display panel, first and second electrode drivers, and a controller. The display panel includes first electrodes in the column direction, second...
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7312770 |
Substrate having a light emitter and image display device
An image display device which prevents damage to an electron-emitting device from discharge between a faceplate and a rear plate is provided. A conductive plate 12 including a transparent...
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7280088 |
Method and device for controlling a matrix electron source, with regulation by the emitted charge
Process and device for control of an electron source with matrix structure, regulated by the emitted charge. The invention is applicable to an electron source comprising addressing rows and...
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7268750 |
Method of controlling image display
This invention discloses an arrangement for suppressing an erroneous display and suppressing damage to an image display apparatus when a power source is turned on, the power source is turned off,...
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7268751 |
Image display apparatus
A scanning wiring driving unit for generating a signal of a frequency Fb applies a scanning signal to a plurality of scanning wirings which are a part of a plurality of scanning wirings. In a next...
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7268766 |
Inverter driving apparatus and liquid crystal display including inverter driving apparatus
An inverter driving apparatus for driving a plurality of lamp units is provided. The inverter driving apparatus includes a plurality of inverter boards for generating driving signals for driving...
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7250926 |
Method of driving flat display apparatus and driving system
In a method of driving a display apparatus, a first combination of a first anode voltage and a first element voltage is selected to apply the first anode voltage to the anode electrode and apply...
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7230589 |
Image-forming device
An image-forming device having, in an envelope, an electron-emitting element, an image-forming member for forming an image by irradiation of an electron beam emitted from the electron-emitting...
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7224331 |
Display device and drive control method therefor
A display device includes a display panel having cathodes, gates, and anodes in which the cathodes and the gates are connected in a matrix manner, and an electron emitter which emits electrons in a...
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7180514 |
Image display apparatus and control method thereof
An image display apparatus includes a display panel having an electron source, an acceleration electrode for accelerating electrons emitted from the electron source and phosphors for emitting light...
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7170475 |
Cathdoluminescent display device
A display device is provided with a display screen ( 30 ) for displaying image information, having a predetermined number of luminescent picture elements ( 35 ). In operation, an electron beam ( 45...
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7142177 |
Image display apparatus for forming an image with a plurality of luminescent points
The present invention relates to an image display apparatus for forming an image with a plurality of luminescent spots to be precisely aligned in a matrix. For example, a spacer disposed between an...
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7116057 |
Display device using electron source elements and method of driving same
In the case where the number of pixels is increased in a display device making use of electron source elements, a period, in which one pixel is caused to continue to emit light, shortened, and so...
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7095186 |
Control circuit for controlling an electron-emitting device
A control circuit for controlling an electron-emitting device is formed to draw, with a voltage applied, an excitation current being related to a number of electrons emitted. The inventive control...
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7071903 |
Multiplex anode matrix vacuum fluorescent display and the driving device therefor
A multiplex anode matrix fluorescent display capable of allowing a duty cycle thereof to be multiple times that of the prior art multiplex anode matrix fluorescent display is provided without...
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7012582 |
Spacer-less field emission display
Field emission displays (FEDs) having improved structure are provided. In one implementation, a field emission display comprises a faceplate, a backplate, a volume formed therebetween and...
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6989626 |
Piezoelectric transformer
A compact and high-power piezoelectric transformer is realized by using higher order longitudinal extensional mode vibrations and increasing an effective electromechanical coupling factor by a...
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6975288 |
Method of driving image-forming apparatus and apparatus thereof
Disclosed is an electron-emitting device, an electron source, and an image-forming apparatus that have uniform electron-emitting characteristics, emit electron beams whose diameters are small, have...
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6937214 |
Method for generating uniform luminosity for displaying contents of organic light emitting diode
A method for generating an uniform luminosity for displaying contents on an organic light emitting diode display device that include a plurality of pictures and a plurality of pixels has a driver...
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6903712 |
Display device and driving method thereof
In a display device arranging anode wires and cathode wires in a matrix shape, disposing light emitting elements at the intersections, scanning and driving the cathodes at specific time intervals,...
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6897855 |
Tiled electronic display structure
A tiled display device is formed from display tiles having picture element (pixel) positions defined up to the edge of the tiles. Each pixel position has an organic light-emitting diode (OLED)...
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6897620 |
Electron emitter, drive circuit of electron emitter and method of driving electron emitter
An electron emitter has an emitter section formed on a substrate, a cathode electrode formed on one surface of the emitter section, and an anode electrode formed on the same one surface of the...
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6867551 |
Light-emission drive circuit for organic electroluminescence element and display device
An active type of light emission drive circuit includes a switching element which turns on in response to a scan pulse to allow a data signal to pass therethrough, a capacitive element for holding...
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6862010 |
Method and device for controlling the voltage of a matrix structure electron source, with regulation of the emitted charge
A method controls voltage of a matrix structure electron source. The method includes setting the emission of electrons by applying potentials on the selected line and column(s) at a value allowing...
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6838835 |
Conductive spacer for field emission displays and method
Methods of operating field emission displays are disclosed. In one embodiment, a method for operating a field emission display includes applying a voltage to an extraction grid with respect to an...
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6831619 |
Image-forming apparatus
An image-forming apparatus includes an image-forming device in an envelope. The image-forming device includes a member (e.g., a thin film electrode) which is carried on the inner surface of the...
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6815901 |
Display device using electron source elements and method of driving same
In the case where the number of pixels is increased in a display device making use of electron source elements, a period, in which one pixel is caused to continue to emit light, shortened, and so...
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6806857 |
Display device
Grey scale linearity and power efficiency in active matrix (O) LEDs are enhanced by storing the grey value in a memory circuit, coupled to an adjusting circuit, preferably via a current mirror.
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6798143 |
Flat display screen cathode plate
A cathode plate of a flat display screen of the type including a set of electron emission cathode conductors, organized in columns, a set of electron extraction grid conductors, organized in rows,...
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6760002 |
Electron source, image-forming apparatus comprising the same and method of driving such an image-forming apparatus
An electron source comprises a plurality of electron-emitting devices and a drive means for driving the devices. The drive means applies a voltage above a threshold level to selected ones of the...
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6760001 |
Method of adjusting characteristics of electron source, method of manufacturing electron emission device
The present application discloses a characteristic adjusting method of executing a step of changing the characteristics of display devices in an image display apparatus. In particular, the present...
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6750854 |
Image displaying apparatus
An image displaying apparatus includes a transparent film adhered to an outer surface of a face plate, and a transparent conductive film formed on an outer surface of the transparent film. When a...
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6710763 |
Display control method and display controller
In a dimmer control technique of the invention, the outside light detection period is made variable and the intensity adjustment speed is changed and is made variable so as to deal with outside...
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6710756 |
Matrix addressable display having pulse number modulation
A current controlled field emission display includes a controller that provides a pair of pulsed clocking signals that allows current to flow from ground potential to an emitter in the field...
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6683415 |
Flat display screen with a protection grid
A flat display screen including a.cathode provided with field effect electron emission means, a cathodoluminescent anode placed opposite to the cathode, an extraction grid associated with the...
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6636190 |
Liquid crystal display having an improved lighting device
A liquid crystal display device includes a liquid crystal display panel and a lighting device. The lighting device is supplied with alternately a first current during a period t 1 and a second...
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