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Class 315/169.3 - Electroluminescent device


Subclass of Class 315 - Electric lamp and discharge devices: systems
Definition: Subject matter in which the discharge device includes electroluminescent
No. of patents: 2655
Last issue date: 05/29/2012


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NumberTitleIssue Date
7336251Image display device and luminance correcting method thereof
The purpose of the invention is providing a current-input display device which can emit light at a constant luminance and provide a high definition display. According to the invention, a current which is almost the same as a current source can be inputted by adding ...
02/26/2008
7336269Electronic discharging control circuit and method thereof for LCD
A control circuit and a method discharging capacitor/transistor, for a liquid crystal display (LCD), are provided. The control circuit includes a signal-off detector and an all-gate-on delay cell. When an LCD power-off signal is detected, a first control signal is t...
02/26/2008
7336026High efficiency dielectric electron emitter
An electron emitter has an emitter made of a dielectric material and an upper electrode and a lower electrode for being supplied with a drive voltage for emitting electrons. The upper electrode is disposed on an upper surface of the emitter, and the lower electrode ...
02/26/2008
7336036Organic electroluminescent display device
The present invention narrows a picture frame size by deciding line widths of respective power source bus lines which supply electricity to organic EL elements of respective colors corresponding to current quantities of the respective power source bus lines. Red pix...
02/26/2008
7333077Display device and electronic device
A display device capable of displaying on both screens and switching between vertical and horizontal display, and a driving method thereof. Each pixel comprises a first region including a first light emitting element, and a second region including a second light emi...
02/19/2008
7333079Organic EL display and active matrix substrate
In an active matrix organic EL display including a drive control element which has a first terminal connected to a first power supply terminal, a control terminal, and a second terminal which outputs a driving current having a magnitude corresponding to the voltage ...
02/19/2008
7333151Dot clock synchronization generator circuit
A circuit which generates a dot clock synchronized to an external video signal which can ensure a pulse width allowed by a device which is supplied with the dot clock. A high frequency clock is divided to generate a first dot clock, and the phase is initialized in a...
02/19/2008
7332861Light-emitting structures
Light-emitting structures of reduced size are realized with combinations of light-emitting diodes, resistive and conductive films, and interconnect members. Other embodiments are provided which simplify fabrication and assembly. ...
02/19/2008
7332877Light controller
A light controller capable of varying the brightness of a light emitting diode in a linear manner. The light controller may control a number of lights in a predetermined pattern or in a pattern designed by the user. A remote control may be used to control and intera...
02/19/2008
7332736Article comprising gated field emission structures with centralized nanowires and method for making the same
This invention provides novel methods of fabricating novel gated field emission structures that include aligned nanowire electron emitters (individually or in small groups) localized in central regions within gate apertures. It also provides novel devices using nano...
02/19/2008
7333080Color OLED display with improved power efficiency
An OLED display device includes: an array of light emitting pixels, each pixel having red, green, and blue OLEDs and at least one additional colored OLED that expands the gamut of the display device relative to the gamut defined by the red, green and blue OLEDs, whe...
02/19/2008
7330169Display device and method for driving the same
In a display device using a time gradation method, power consumption at a time when multigradation display is unnecessary is reduced. In a second display mode in which the number of gradations is set to two as compared with a first display mode of multigradation, wr...
02/12/2008
7329978Cold cathode field emission display
A cold cathode field emission display comprising a cathode panel CP having a plurality of cold cathode field emission devices and an anode panel AP which panels are bonded to each other in their circumferential portions, the anode panel AP comprising a substrate ...
02/12/2008
7330162Method of driving a light emitting device and electronic equipment
A driving method is provided which improves the duty ratio, which presents high image quality by securing a sufficient length of sustain (lighting) period when gray scales are increased in number, and which prolongs the lifetime of a light emitting element. One fram...
02/12/2008
7330204Self-scanning light-emitting element array and driving method of the same
A self-scanning light-emitting element array is driven such that, if a current supply line for a light-emitting element is broken, a light-emitting element neighboring failed light-emitting element continues to operate. In first time period turned-on states of the n...
02/12/2008
7329990Plasma display panel having different sized electrodes and/or gaps between electrodes
A plasma display for causing a stable discharge at all lines and eliminating a side abnormal discharge is disclosed. In the plasma display, a width of at least one of electrodes at a first scan line selected firstly of scan lines is different from a width of electro...
02/12/2008
7330179Display device and driving method thereof
Regarding the time gradation method as the digital gradation expression method, it is an object of the invention to provide a display device which prevents a reduction of frame frequency and implements a low-power-consumption SRAM. The invention overcomes the aforem...
02/12/2008
7329998Lighting system including photonic emission and detection using light-emitting elements
The present invention provides a system and method for generating light using light-emitting elements and detecting the intensity and spectral power distribution of light using the same light-emitting elements as spectrally sensitive photodetectors. The light-emitti...
02/12/2008
7330168Display device
A source of a driving transistor for driving an organic EL element functions as a first capacitance electrode layer. A second capacitance electrode layer is formed on the source through a gate insulating film of the driving transistor. The second capacitance electro...
02/12/2008
7330165Method of driving plasma display panel
A method drives a plasma display panel including priming electrodes. In the writing period of a sub-field, prior to the scanning of respective scan electrodes, priming discharge is caused between the scan electrodes and the priming electrodes. The time interval betw...
02/12/2008
7330003Backlight control circuit with two transistors
An exemplary backlight control circuit (200) includes two load circuits (210), a pulse width modulation integrated circuit (PWM IC) (250) having a current sampling pin (251), a switching circuit (270), a first input circuit (230...
02/12/2008
7326328Gated nanorod field emitter structures and associated methods of fabrication
The present invention relates to gated nanorod field emission devices, wherein such devices have relatively small emitter tip-to-gate distances, thereby providing a relatively high emitter tip density and low turn on voltage. Such methods employ a combination of tra...
02/05/2008
7327090Electronic module, methods of manufacturing and driving the same, and electronic instrument
An electronic module includes an EL section; a first substrate on which the EL section is formed; a second substrate attached to the first substrate; an integrated circuit chip mounted on the second substrate; a plurality of first power supply interconnects formed o...
02/05/2008
7327618Semiconductor memory with wordline timing
A semiconductor memory with wordline timing, which links activating a wordline to an isolation signal. The isolation signal is applied to a memory section adjacent the memory section containing the wordline to be activated. Upon such an isolation signal shifting low...
02/05/2008
7327091Light-emitting element driving apparatus
A light-emitting element driving apparatus includes a constant-current circuit and a control circuit. The constant-current circuit includes a plurality of constant-current sources that are connected in parallel with each other and are respectively connected in serie...
02/05/2008
7327357Pixel circuit and light emitting display comprising the same
A pixel circuit including a light emitting device; a driving transistor to receive first power and supply current corresponding to voltage applied to a gate electrode thereof to the light emitting device; a first switching device to supply a data signal in response ...
02/05/2008
7327334Plasma display panel driver circuit having two-direction energy recovery through one switch
A charging/discharging circuit of a plasma display panel (PDP) driver has a first inductance having a first end connected to the first side of the panel capacitor, a first diode having an anode coupled to a second end of the first inductance, a second diode having a...
02/05/2008
7327097Light module with control of luminance and method for managing the luminance
The invention is directed to a light module, which allows the individual lamp unit to be replaced with a new one and the luminance of the newly-replaced lamp unit can be automatically or manually adjusted to get a uniform luminance. Wherein, information of a first r...
02/05/2008
7327093External electrode fluorescent lamp, backlight unit using the external electrode fluorescent lamp, LCD backlight equipment using the backlight unit and driving device thereof
An external electrode surface emission fluorescent lamp for LCD backlighting includes (a) a serpentine-shaped upper sheet having a section for maximizing brightness uniformity within a predetermined distance from its surface; (b) a plate-shaped lower sheet combined ...
02/05/2008
7327283System and apparatus for flight deck module integration
An integrated communication system in an aircraft is provided. The system includes a plurality of solid state flight deck modules in an integrated flight deck panel, wherein the solid state flight deck modules include a microcontroller for interfacing with at least ...
02/05/2008
7322717Illuminator and display device using the same
An illuminator for a display device is provided on a back side of a display panel, and includes a plurality of rod-shaped light sources each having a length extending in a first direction and having substantially the same length. The plurality of rod-shaped light so...
01/29/2008
7324075Pixel circuit and display device
When a switching TFT is switched on, a data voltage on a data line is stored in a storage capacitor as a gate voltage of a driver TFT. In this state, a voltage on a pulse drive line is caused to fall. AMOS type capacity element having a second electrode connected to...
01/29/2008
7324076Methods and apparatus for setting the color point of an LED light source
In one embodiment, a user-selected color point is received. RGB tristimulus values are then derived for the color point. It is also determined whether the user-selected color point is outside a color selection range of the LED light source and, if so, an error flag ...
01/29/2008
7324100Plasma display panel with energy recovery circuit and driving method thereof
A plasma display panel with a driving apparatus including an inductor of which one end is electrically connected to one end of a panel capacitor. The driving apparatus of the plasma display panel alters a terminal voltage of the panel capacitors into a second voltag...
01/29/2008
7324123Display device and electronic apparatus
Outside light is received using a light sensor, and in accordance with the outside light intensity, each of a first display mode which expresses multiple gray scales and a second display-y mode which expresses a gray scale smaller in number than that in the first di...
01/29/2008
7323830Lighting arrangement having a fluorescent lamp, particularly a cold cathode lamp
A lighting arrangement having at least one fluorescent lamp comprising a tube that has at least one light emitting region, a high-voltage terminal at a first end of the tube and a low-voltage terminal at a second end of the tube, an electrically conductive surface b...
01/29/2008
7322718Multichip LED lighting device
In a module socket, a connecter and a connector are connected by wiring, and three LED modules are connected in parallel with respect to a constant voltage circuit unit via the wiring. Each module has a constant current circuit unit and an LED mounting unit. The con...
01/29/2008
7324074Electroluminescent display panel and method for operating the same
Electroluminescent display panel and method for operating the same. The electroluminescent display panel having a plurality of unit pixels defined by a plurality of gatelines, and a plurality of sourcelines running perpendicular to each other, the unit pixel includi...
01/29/2008
7321350Image display
An image display having a display panel including pixels in a matrix pattern, anodes formed corresponding to the pixels, a cathode in common with the anodes, EL elements provided between the anode and the cathode and including a light emitting layer, and TFTs for co...
01/22/2008
7321347Organic EL element drive circuit and organic EL display device using the same drive circuit
An organic EL drive circuit comprises a timing signal generator circuit for generating a plurality of second timing control signals sequentially delayed from a first timing control signal, a reset pulse generator circuit for selecting one of the plurality of the sec...
01/22/2008
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