Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7710365 | Determining leakage in matrix-structured electronic devices One embodiment of this invention pertains to a high throughput screening technique to identify current leakage in matrix-structured electronic devices. Because elements that are likely to develop a short have relatively high leakage current at zero operation hours, ... | 05/04/2010 |
| 7710364 | Display apparatus A display apparatus, that includes current driving type luminescent elements, has a driving system that takes the conduction types of TFTs to control the emission of the luminescent elements into consideration. In order to reduce driving voltage and improve display ... | 05/04/2010 |
| 7701420 | Display device and driving method thereof The present invention enhances a display quality of a display device as a task. As means for solving such a task, the present invention provides a display device including a light emitting element and a switching element in a pixel, wherein the switching element is ... | 04/20/2010 |
| 7696960 | Display device The level of a storage capacitor line is changed between two types, an H level and an L level. As a result of this change, the voltage applied to a liquid crystal is shifted so that a sufficient voltage is applied to the liquid crystal to perform a display operation... | 04/13/2010 |
| 7696961 | Spontaneous light emitting device and driving method thereof A counter 102 counts the accumulated lighting time or the accumulated lighting time and the intensity of lighting of each pixel by a first image signal 101A and stores them in a volatile memory 103 or a nonvolatile memory 104. A correctio... | 04/13/2010 |
| 7692609 | Active matrix type display 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... | 04/06/2010 |
| 7692610 | Display device To provide a high-performance and highly reliable display device with a high aperture ratio, including light-emitting elements, and a manufacturing method thereof, and a technique for manufacturing such a display device at a low cost with high productivity. A compen... | 04/06/2010 |
| 7688289 | Organic EL driver circuit and organic EL display device To provide an organic EL drive circuit including D/A converter circuits capable of reducing the number of elements, which are proof against relatively high voltage, restricting an increase of circuit size and restricting variation of luminance of a display screen an... | 03/30/2010 |
| 7683860 | Display device, driving method thereof, and element substrate The invention provides a display device with high image quality and high definition, a driving method thereof and an element substrate. Further, the invention provides a display device with improved degradation of a light emitting element, a driving method thereof a... | 03/23/2010 |
| 7683861 | Arrangement for driving LED lighting sources A driving arrangement for a plurality of light emitting diodes (LEDs), comprising a first power supply line (Vcc), a second power supply line (GND) and a set of signal lines (1a, 1b, 1c) for carrying brightness intensity and... | 03/23/2010 |
| 7679585 | Semiconductor device, display device, and electronic appliance In case the size of the transistor is enlarged, power consumption of the transistor is increased. Thus, the present invention provides a display device capable of preventing a current from flowing to a display element in signal writing operation without varying pote... | 03/16/2010 |
| 7679586 | Pixel circuits and methods for driving pixels A circuit according to one embodiment includes a data line; a select line; a storage node coupled to the select line; a first transistor with a gate coupled to the select line, a first electrode thereof coupled to the storage node, and a second electrode thereof cou... | 03/16/2010 |
| 7675491 | Display device and method for driving the same A display device includes a pixel array in which a plurality of display pixels are arranged in a two-dimensional manner which is divided into a plurality of column groups composed of the display pixels of a predetermined number of columns, a signal drive circuit whi... | 03/09/2010 |
| 7675488 | Shift register circuit The present invention discloses a shift register circuit comprising a plurality of shift register units and a bus, wherein the bus couples to each shift register unit. Each shift register unit comprises a shift register, a first selector circuit, and a second select... | 03/09/2010 |
| 7675489 | Energy efficient column driver for electroluminescent displays A driving circuit for driving a display panel having pixels arranged in rows and columns, wherein the driving circuit incorporates a resonant circuit that is able to efficiently recover capacitive energy stored on the row of pixels and transfer it to another row of ... | 03/09/2010 |
| 7675485 | Electroluminescent display devices An active matrix electroluminescent display device comprises an array of display pixels. In each pixel, a first switch connects power from a power supply line to the display element and a second switch routes current from a current-measurement supply line to the dis... | 03/09/2010 |
| 7675490 | Method and apparatus for uniformity compensation in an OLED display A method of compensating the uniformity of an OLED device that includes measuring the performance of light-emitting elements at three or more different input intensity values. Calculation of parameters a and b, for each light-emitting element, is performed to minimi... | 03/09/2010 |
| 7675486 | Drive system of display device This invention provides a drive system of a display device preventing an uneven display caused by output current values of current conversion circuits. A drive system of a display device of the invention has a plurality of pixels disposed in a matrix of m rows and n... | 03/09/2010 |
| 7675487 | Simplified light-emitting diode (LED) hysteretic current controller An LED current control device (100) includes an array of one or more LEDs (10) electrically connected to a current-sensing element (20). A sense signal produced by the current-sensing element may be amplified by a single-ended amplifier (30 | 03/09/2010 |
| 7671825 | Method of driving organic EL device and display device According to one aspect of the present invention, it is possible to sufficiently perform the discharging of charge without lowering the light emitting efficiency of an organic EL device and hence, the device can exhibit the light emitting efficiency higher than a co... | 03/02/2010 |
| 7671826 | Semiconductor device, display device, and electronic device A display device includes a load, a transistor for controlling a current value supplied to the load, a capacitor, a first wiring, a second wiring, and first to fourth switches. Variations in the current value caused by variations in the threshold voltage of the tran... | 03/02/2010 |
| 7667673 | Organic electroluminescent display panel An organic EL display panel having display pixels with an improved aperture ratio. A display pixel includes a control electrode line coupled to control electrodes of first and second transistors and a main electrode of a fourth transistor, and a power electrode line... | 02/23/2010 |
| 7667674 | Organic electroluminescent light emitting display device In an organic electroluminescent light emitting display device comprising a plurality of pixels each of which includes an organic electroluminescent element emitting light by a current supplied thereto, a plurality of active elements including a first active element... | 02/23/2010 |
| 7663579 | Organic electroluminescence display device An electroluminescence display device includes a first switching device for transferring a data current, which represents a data signal, using a first scan signal, a second switching device for transferring the data current from the first switching device using a se... | 02/16/2010 |
| 7663578 | Semiconductor device, display device and electronic device A potential which is applied to a gate electrode of a driving transistor in accordance with an emission state or a non-emission state of a light-emitting element fluctuates due to noise or leakage from a selection transistor, or the like, which causes a problem in t... | 02/16/2010 |
| 7663575 | Driving circuit for driving organic electroluminescent element, display panel and display apparatus having the same A driving circuit for an organic light emitting display apparatus includes first and second switching elements and a driving element. The first switching element is controlled by a scan signal supplied from a scan line. The second switching element is controlled by ... | 02/16/2010 |
| 7663576 | Video data correction circuit, control circuit of display device, and display device and electronic apparatus incorporating the same Accumulated usage data of each pixel of the correction circuit is divided into a plurality of data portions, each of which is stored in a different storing means. For example, the accumulated usage data is divided into the upper bit and the lower bit to be stored se... | 02/16/2010 |
| 7663577 | Organic light emitting display device An organic light emitting display (OLED) device including a plurality of electroluminescent (EL) panels that are coupled with one another. In order to facilitate the coupling of the EL panels, respective data drivers are disposed at one side of pixels, and a scan dr... | 02/16/2010 |
| 7656368 | Display device and driving method A display device includes a data line; first and second gate lines; a first pixel including a first switching element, the first switching element connected to the data line and the first gate line; and a second pixel including a second switching element, the second... | 02/02/2010 |
| 7652645 | Light emitting display A light emitting display including a pixel area having a plurality of pixels, a scan driver for outputting a scan signal for selecting a predetermined pixel among the plurality of pixels of the pixel area, and an emission control signal for allowing a current to flo... | 01/26/2010 |
| 7652646 | Systems for displaying images involving reduced mura Systems for displaying images are provided. A representative system incorporates a display device that includes a data line operative to provide display signals and sweep signals; a scan line operative to provide scan reset signals; a first capacitor having a first ... | 01/26/2010 |
| 7649512 | Organic EL display device, and method for driving the organic EL display device Scanning switch means 21 to 2m can connect scanning lines S1 to Sm freely to a first potential or a second potential. Drive switch means 71 to 7n can connect drive lines D1 to Dn freely to a drive current source 70 or... | 01/19/2010 |
| 7649513 | Organic light emitting diode display An Organic light emitting diode display device includes: a pixel array having a plurality of scan lines and a plurality of data lines that cross each other, a plurality of power voltage supply lines to which a high level power supply voltage is supplied and that are... | 01/19/2010 |
| 7646362 | Controlling current in display device A display device, for carrying out image display on a display panel by controlling current flowing in display elements for each pixel based on image data, including display setting circuitry for setting a relationship between image data and current values for curren... | 01/12/2010 |
| 7646363 | Display device and electronic equipment A display device is disclosed. The display device includes: a pixel array part; and a drive part that drives the pixel array part. The pixel array part includes row-wise first scan lines and second scan lines, column-wise signal lines, pixels arranged in a matrix fo... | 01/12/2010 |
| 7642996 | Method of driving an organic electroluminescent device comprising a phosphorescent light emitter A method of driving an organic electroluminescent device comprising a phosphorescent light emitter having an excited state emission decay time τ, which method comprises applying to the organic electroluminescent device a series of electrical pulses of duration t | 01/05/2010 |
| 7642997 | Active matrix display compensation An apparatus for selecting a stressing voltage for compensating for changes in the threshold voltages (Vth) for drive transistors in pixel drive circuits in an active matrix OLED display having a plurality of OLED light-emitting pixels arranged in an arra... | 01/05/2010 |
| 7639217 | Scan driving circuit and organic light emitting display device using the same Scan driving circuit having a number of stages coupled together in series and coupled with first and second lock signal input lines. Each of the stages receives a start signal or an output signal of a previous stage and includes a transfer unit, an inversion unit, a... | 12/29/2009 |
| 7639215 | El display having a blanking period, scanning period including precharge operation, and display period A display executes a first reset operation during a blanking period, and second and third reset operations and a write operation during each selection period. The first reset operation includes connecting a current source to a precharge circuit and writing a first r... | 12/29/2009 |
| 7639216 | Electroluminescent display device and method of driving same An electroluminescent display device is composed of a plurality of rows of pixels, each at least including a light emitting element, a switching transistor, and a driving transistor electrically coupled to the switching transistor and the light emitting element. A f... | 12/29/2009 |
