Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8164549 | Electronic circuit for driving a driven element of an imaging apparatus, electronic device, method of driving electronic device, electro-optical device and electronic apparatus An electronic circuit drives a driven element. The electronic circuit includes a signal line, a unit circuit connected to the signal line, and a voltage supply line. The unit circuit includes a transistor, a switch, and a capacitive element. The transistor includes ... | 04/24/2012 |
| 8159425 | Method and apparatus for driving an electro-luminescence display panel with an aging voltage The present invention relates to a method and apparatus for driving an electro-luminescence display panel capable of doing an aging operation upon driving. A method of driving an electro-luminescence display panel according to the present invention includes: ... | 04/17/2012 |
| 8154483 | Image display apparatus and driving method thereof Disclosed is an image display wherein luminance change due to change of the light-emitting device over time is compensated while suppressing affects of characteristics change in the drive transistor. Specifically disclosed is an image display comprising a plurality ... | 04/10/2012 |
| 8130182 | Digital-drive electroluminescent display with aging compensation An electroluminescent (EL) subpixel driven by a digital-drive scheme has a readout transistor driven by a current source when the drive transistor is non-conducting. This produces an emitter-voltage signal from which an aging signal representing the efficiency of th... | 03/06/2012 |
| 8130181 | Luminescence display and driving method thereof A OLED display and a driving method thereof are disclosed. The OLED display includes: an OLED display panel including: data lines to which data voltages are supplied; gate lines to which a gate voltage is sequentially supplied; luminescence control lines to which a ... | 03/06/2012 |
| 8130180 | Apparatus and method for driving an LED display utilizing a pre-programming period A pixel circuit is disclosed in the present invention, which includes an OLED, a current-driving unit receiving a signal current on a data line during a programming period to provide a corresponding driving current to the OLED, a first switch coupled between the dat... | 03/06/2012 |
| 8115707 | Voltage-programming scheme for current-driven AMOLED displays A system and method for driving an AMOLED display is provided. The AMOLED display includes a plurality of pixel circuits. A voltage-programming scheme, a current-programming scheme or a combination thereof is applied to drive the display. Threshold shift information... | 02/14/2012 |
| 8031142 | DC offset correction for an electroluminescent panel A circuit for EL panel DC offset correction is provided. The circuit includes components such as an EL panel driver, an error circuit, a pulse width modulation circuit, and a low-pass filter. The low-pass filter performs low-pass filtering on the voltage across the ... | 10/04/2011 |
| 8026876 | OLED luminance degradation compensation A system and method are disclosed for determining a pixel capacitance. The pixel capacitance is correlated to a pixel age to determine a current correction factor used for compensating the pixel drive current to account for luminance degradation of the pixel that re... | 09/27/2011 |
| 8009129 | Electroluminescence display apparatus During a blanking period of a video signal, an element driving transistor for controlling a drive current supplied to an EL element is operated in its saturation region to thereby set the EL element to an emission level, and a current flowing through the EL element ... | 08/30/2011 |
| 7973746 | Pixel and organic light emitting display using the same A pixel includes a light emitting diode, and a switching circuit that is coupled to a data line and a compensation power source line, and includes a transistor including a control terminal, a first main terminal coupled to a power source line, and a second main term... | 07/05/2011 |
| 7932881 | Image display device and driver circuit therefor 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 ... | 04/26/2011 |
| 7924249 | Method and system for light emitting device displays A method and system for light emitting device displays is provided. The system includes one or more pixels, each having a light emitting device, a drive transistor for driving the light emitting device, and a switch transistor for selecting the pixel; and a circuit ... | 04/12/2011 |
| 7893895 | Pixel circuit, display device, driving method of pixel circuit, and driving method of display device A pixel circuit, disposed at a part where a scanning line and a signal line intersect each other, includes at least an electrooptic element, a drive transistor, a sampling transistor, and a retaining capacitance. The drive transistor has a gate connected to an input... | 02/22/2011 |
| 7868856 | Data signal driver for light emitting display A display has light emitting elements (2) arranged in rows and columns, with pixels in a column being supplied with current from a respective column power supply line (26). Target pixel drive currents are determined corresponding to desired pixel brigh... | 01/11/2011 |
| 7852298 | Method and system for driving a light emitting device display A method and system for driving a light emitting device display is provided. The system provides a timing schedule which increases accuracy in the display. The system may provide the timing schedule by which an operation cycle is implemented consecutively in a group... | 12/14/2010 |
| 7804469 | Display apparatus and driving method for display apparatus A display apparatus includes: a pixel array section and dependence cancellation means. The pixel array section wherein a plurality of pixel circuits each including an electro-optical element, a driving transistor configured to drive said electro-optical element, a s... | 09/28/2010 |
| 7800563 | Display apparatus, driving method for display apparatus and electronic apparatus Disclosed herein is a display apparatus, including: a pixel array section wherein a plurality of pixel circuits each including an electro-optical element, a driving transistor, a sampling transistor and a capacitor are disposed in a matrix; a dependence cancellation... | 09/21/2010 |
| 7755579 | Image display apparatus The invention provides an image display apparatus and an image display method of excellent image quality, by correcting the voltage drop resulting from the electrical resistance of the wirings with a simple configuration. There are provided adjustment data ca... | 07/13/2010 |
| 7714814 | Method and apparatus for driving electro-luminescence display panel with an aging pulse The present invention relates to a method and apparatus for driving an electro-luminescence display panel capable of doing an aging operation upon driving. A method of driving an electro-luminescence display panel according to the present invention includes: ... | 05/11/2010 |
| 7649514 | Data driving circuit, organic light emitting diode (OLED) display using the data driving circuit, and method of driving the OLED display A data driving circuit including: a voltage digital-analog converter adapted to generate a first gradation voltage corresponding to external data; a current digital-analog converter adapted to generate a gradation current corresponding to the external data; a voltag... | 01/19/2010 |
| 7598935 | Light emitting device with cross-talk preventing circuit and method of driving the same A light emitting device and a method of driving the same are provided where a cross-talk problem can be overcome. The light emitting device includes a display panel including a plurality of scan lines disposed in a first direction, a plurality of data lines disposed... | 10/06/2009 |
| 7576718 | Display apparatus and method of driving the same To provide a technology for preventing effect of precharging from becoming nonuniform when the threshold voltage of a driving transistor included in a current drive type pixel circuit is nonuniform. In the technology, before setting the internal state of each of cur... | 08/18/2009 |
| 7567227 | Electronic device and method of driving the same To provide a novel driving method for driving an electronic device by using digital gray scale and time gray scale in combination, which secures high duty ratio, which can display an image normally even when a sustain period is shorter than an address period, and wh... | 07/28/2009 |
| 7528812 | EL display apparatus, driving circuit of EL display apparatus, and image display apparatus The EL display apparatus according to this invention is provided with an EL light emitting element, a current driving device for driving the EL light emitting element by a current responsive to a source signal represented by a current, and a signal current source ( | 05/05/2009 |
| 7453427 | Semiconductor device and driving method thereof A semiconductor device in which a signal current can be written quickly in a current source circuit of a current input type. A signal current is written after performing a pre-charge operation, thus the writing is performed quickly. In the pre-charge operation, a cu... | 11/18/2008 |
| 7450094 | Light emitting device and method of driving the same The present invention relates to a light emitting device where currents passing through scan lines have the same values. The light emitting device includes data lines, scan lines, pixels, one or more dummy data line and a cross-talk preventing circuit. The data line... | 11/11/2008 |
| 7432886 | Organic electroluminescent (EL) display device and method for driving the same An organic EL display device for compensating for a reduction of the voltage between the gate and source of a driving transistor occurring due to a voltage drop of the source voltage caused by the resistance component of a power source line, and a method for driving... | 10/07/2008 |
| 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 signals to cause light to be emitted from said display at a location in t... | 09/09/2008 |
| 7420530 | Pixel circuit, display device method for controlling pixel circuit A pixel electrode and a display device capable of lowering power consumption with a uniformity of luminance retained, and realizing a display image having a high contrast and a high image quality, wherein a correction period for correcting a variation in properties ... | 09/02/2008 |
| 7420554 | Display and semiconductor device A display capable of correctly displaying images with brightness in response to a video signal is provided. This display comprises a pixel including a p-type first field-effect transistor subjected to application of a first bias voltage in the period of an operation... | 09/02/2008 |
| 7382340 | Light emission display, display panel, and driving method thereof A light emission display includes data lines, scan lines, and pixel circuits. A pixel circuit of the pixel circuits includes: a light emission element; a first transistor including a control electrode and first and second electrodes, the first transistor outputting ... | 06/03/2008 |
| 7372438 | Electroluminescent display An electroluminescent display includes: a pixel region including devices arranged therein and adapted to emit light in response to a data signal; a scan driver adapted to supply a switching signal to a gate electrode of a first switching device; a data driver adapte... | 05/13/2008 |
| 7362288 | Organic electroluminescence panel, a display with the same, and an apparatus and a method for driving thereof The present invention provides an organic electroluminescence panel, an organic electroluminescence display provided therewith, and driving apparatus and method thereof. The organic electroluminescence display according to the present invention includes a plurality ... | 04/22/2008 |
| 7358935 | Display device of digital drive type The invention provides an organic LED display device of the digital drive type which has a display panel comprising a plurality of pixels 51. Each of the pixels 51 comprises an organic EL element 50, a drive transistor TR2 for effecting o... | 04/15/2008 |
| 7324075 | Pixel 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 |
| 7321350 | Image 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 |
| 7315131 | Color electroluminescence display device A part of a capacitor is disposed in the horizontal direction of a luminescent region so as to secure a gap in the horizontal direction of the luminescent region. As the distance between adjoining pixels in the horizontal direction is thus secured, color mixing is u... | 01/01/2008 |
| 7310105 | Image signal processing device and image signal processing method A first adding circuit sums an input image signal of a target pixel and a value that is derived by multiplying respective display errors of three pixels, which are before the target pixel by one line, by weighting factors. A gradation candidate converter converts th... | 12/18/2007 |
| 7295192 | Compensating color shift of electro-luminescent displays An electro-luminescent display comprises a plurality of scanning lines, a plurality of data lines which are arranged to cross the plurality of scanning lines and forming a plurality of pixel regions, at least one indicating driving circuit, and at least one indicati... | 11/13/2007 |
