| Patent application number | Description | Published |
|---|
| 20080246703 | Display Driving Methods and Apparatus for Driving a Passive Matrix Multicolor Electroluminescent Display - A method of driving a passive matrix multicolor electroluminescent display, the display comprising a plurality of pixels arranged in rows and columns, each said pixel comprising at least first and second sub-pixels having different respective first and second colors, the method comprising: driving groups of said pixels in turn to display a multicolor image frame, said driving of a group of pixels comprising driving first and second sub-groups of sub-pixels of respective said first and second colors; and wherein said driving further comprises driving a said group of pixels for a duration dependent upon a maximum drive level of a sub-pixel of a said sub-group. | 10-09-2008 |
| 20090066229 | Top-Emitting Electroluminescent Devices Comprising Cathode Bus Bars - A top-emitting display apparatus is provided having a plurality of pixels, said apparatus comprising an anode formed on a substrate, a well-defining layer, the thickness of said well-defining layer being insufficient for it to serve as a spacer for an evaporation mask, an organic electroluminescent layer formed on the anode in each well of the well-defining layer to form said plurality of pixels, a layer of metal formed on the top surface of the well-defining layer, and a transparent cathode layer deposited such that it is formed both on the electroluminescent layer and the layer of metal on the top surface of the well-defining layer. A method for the manufacture of such an apparatus is also provided. | 03-12-2009 |
| 20090091559 | Display Driver Circuits for Organic Light Emitting Diode Displays with Skipping of Blank Lines, Method of Reducing Power Consumption of a Display, Processor Control Code to Implement the Method, and Carrier for the Control Code - Display driver circuits are described for driving organic light emitting diode displays, particularly passive matrix displays with greater efficiency. Display driver control circuitry ( | 04-09-2009 |
| 20090201230 | Active Matrix Organic Electro-Optic Devices - This invention generally relates to active matrix organic electro-optic devices and to related display driving methods. In embodiments the invention relates to top-emitting OLED (Organic Light Emitting Diode) displays including additional circuitry which may be employed for display driving or other functions. | 08-13-2009 |
| 20090201281 | Active Matrix Display Drive Control Systems - This invention relates to methods, apparatus, and computer program code for driving an active matrix display, in particular an organic light emitting diode (OLED) display, with reduced power consumption. | 08-13-2009 |
| 20100019231 | Organic Electronic Device - This invention generally relates to organic electronic devices and to methods for their fabrication. More particularly we will describe organic thin film transistor (TFT) structures and their fabrication. | 01-28-2010 |
| 20100220041 | Optoelectronic Device - A passive matrix display comprising an array of diodes disposed between a plurality of anode lines and a plurality of cathode lines, wherein at least some of the diodes are emissive diodes which are orientated in a forward direction relative to the cathode and anode lines and others of the diodes are sensing diodes orientated in a reverse direction relative to the cathode and anode lines. | 09-02-2010 |
| 20100245401 | Method of Driving an Electro-Optic Display - A method of driving an electro-optic display comprising providing a current source, digitally modulating the current source and generating a modulated digital signal, and converting the modulated digital signal into an effective analog drive signal so that the display pixels receive an effective analog drive current, wherein the internal capacitance of the electro-optic display smooths the digitally modulated signal and generates the effective analog drive signal. | 09-30-2010 |
| 20100259518 | Matching Current Source/Sink Apparatus - A current matching control apparatus for matching a plurality of current sources and a plurality of current sinks, the plurality of current sinks having a drive current value controlled by a drive processor in accordance with a reference control current and wherein each output of the plurality of current sinks are connected to a common output node; a feedback circuit having an input connected to the common output node and an output connected to the drive processor, wherein the feedback circuit is arranged to match a voltage at the common output node to a reference voltage by communicating a signal to the drive processor to adjust the reference control current. | 10-14-2010 |
| 20100259528 | Dynamic Adaptation of the Power Supply Voltage for Current-Driven EL Displays - A display driver control circuitry and method for controlling a display driver for an electroluminescent display, the display comprising at least one substantially constant current generator for driving the display element, the control circuitry comprising: a drive voltage sensor for sensing a drive voltage on a first line in which the current is regulated by the constant current generator; a reference voltage generator for providing a reference voltage offset from a supply voltage provided from a supply line to the constant current generator; means for determining a difference between the reference voltage and the drive voltage and for generating an adjustment signal, and wherein a voltage controller is configured to adjust the supply voltage responsive to the adjustment signal. | 10-14-2010 |
| 20110032232 | Pixel Circuit - A pixel driver circuit for active matrix driving of an organic light emitting diode (OLED) comprises a drive transistor having a current path connected to a first voltage supply line at one end and to an OLED at the other end and a gate terminal connected to a storage element connected between gate and source of the drive transistor to memorize a drive signal for the drive transistor under the control of a first switch transistor having a gate connection to a first selection line and a current path connected between gate and drain of the drive transistor, and a second switch transistor having a gate connection to a second selection line, wherein the second switch transistor has a current path connected to the data line at one end and a node at the other end located between the drive transistor and the OLED. | 02-10-2011 |
| 20110042696 | Organic Electroluminescent Device - An organic electroluminescent device cfomprising: a transparent substrate; a first electrode disposed over the substrate for injecting charge of a first polarity; a second electrode disposed over the first electrode for injecting charge of a second polarity opposite to said first polarity; an organic light-emitting layer disposed between the first and the second electrode, wherein the second electrode is reflective, the first electrode is transparent or semi-transparent, and one or more intermediate layers of dielectric material with a refractive index greater than 1.8 or a metal material is disposed between the substrate and the first electrode forming a semi-transparent mirror whereby a microcavity is provided between the reflective second electrode and the semi-transparent mirror, all the intermediate layers disposed between the substrate and the first electrode having a surface nearest the organic light-emitting layer not more than 150 nm from a surface of the first electrode nearest the organic light-emitting layer. | 02-24-2011 |
| 20110069732 | ENHANCED EMISSION OF LIGHT FROM ORGANIC LIGHT EMITTING DIODES - A device comprising an organic light emitting diode coupled to a cavity, said cavity containing an emitting species, said device being arranged such that light emitted from said organic light emitting diode is at least partially absorbed by the emitting species and re-emitted from the emitting species. The device may be arranged such that the emitting species acts as the gain media of a laser, and the organic light emitting diode may be arranged to pump the emitting species. | 03-24-2011 |
| 20110163340 | Organic Electroluminescent Device - An organic electroluminescent device comprising: a substrate; a first electrode disposed over the substrate for injecting charge of a first polarity; a second electrode disposed over the first electrode for injecting charge of a second polarity opposite to said first polarity; an organic light emitting layer disposed between the first and the second electrode, the second electrode being transparent to light emitted by the light emitting layer; a glass or transparent plastic encapsulant disposed over, and spaced apart from, the second electrode, defining a cavity therebetween; and a cavity filling material disposed within the cavity, the cavity filling material extending from a bottom side of the cavity to a top side of the cavity, the cavity filling material having an optical structure disposed therein. | 07-07-2011 |
