Barco N.v.

Barco, Naamloze Vennootschap

Naamloze Vennootschap, Barco

Herbert Van Hille

Robbie Thielemans

Nele Dedene

Bruno Devos

Patrick Willem

Karim Meersman

Tom Declerck

Gino Tanghe

William E Bird

Kristof Vanluchene

Steven De Keukeleire

Steve Veldeman

A pixel structure is provided comprising a plurality of sub-pixels, each sub-pixel comprising at least two sub-sub-pixels, each sub-sub-pixel being for the emission of light of one of at least two colors, the sub-sub-pixels being uniformly arranged within the sub-pixel, each sub-pixel of one pixel comprising the same arrangement of sub-sub-pixels. Furthermore, a reflective display comprising pixels with the pixel structure of the invention is provided, having an high image quality.

Display element array with optimized pixel and sub-pixel layout for use in reflective displays

The present invention provides a multicolor OLED pixel structure having a plurality of light emitting color elements, each color element emitting light of a particular color. Optical centers of the color elements coincide substantially at an optical center for the pixel structure and any portion of a color element of the pixel structure has an equally luminous portion of the same color element located diametrically opposite thereto with respect to the optical center of the pixel structure. Light from all the color elements adds to be able to form emitted white light. A plurality of pixel structures may be formed into an array for an active or passive display.

Display element array for emissive, fixed format display

A method of designing a fixed format emissive display is described using a computing device having a processor and a memory, the display comprising an array of emissive pixel elements, each pixel element comprising at least two sub-pixel elements made of different materials. The method comprises selecting areas of the at least two sub-pixel elements so that each pixel element displays white at a predetermined white point within a certain tolerance over a lifetime of the pixel, and such that the lifetimes of the sub-pixel areas are within a predetermined tolerance of each other. A display having sub-pixel elements optimized so that each pixel element displays white at a predetermined white point within a certain tolerance over a lifetime of the pixel, and such that the lifetimes of the sub-pixel areas are within a predetermined tolerance of each other is also described.

Pixel structure with optimized subpixel sizes for emissive displays

The present invention provides arrangements for electroluminescent displayscomprising a packaged semiconductor light emitting elementthat has a light emitting display side. A heat sinkis disposed in the region of a rear side of the light-emitting elementopposite to the display side. Electrical connectionsfrom the light emitting elementpass through said heat sink. Drive circuitryfor the light emitting elementis connected thereto by the electrical connectionsand spaced apart from the heat sinkin such a manner that at least one cooling channelis defined between the heat sinkand the drive circuitryfor the passage in use of a cooling fluid.

Light emission display arrangements

A pixel module for use in a large-area display has a cluster of sequentially interconnected similar pixel modules that are driven by a central controller. The module includes pixel elements that have a serial video data bus input, and command input lines that are electrically connected to inputs of a latch. The latch has parallel inputs and outputs which are clocked with a data dock input. Also included are a current driver device for driving the pixels, a first inverter for driving the data clock input, an address input connected to a second inverter, an EEPROM connected to the input port, and a power supply.

Pixel module for use in a large-area display

A display pixel module for use in a configurable large-screen display application, with an array of pixels () mounted at the front () of the module () and provided with input and output connectors (), characterized in that at least some of the side walls () and of the upper and lower walls () are tapered inwardly, enclosing an angle (A) with the front () and in that it is provided with mounting means to fix the module on a mounting surface of a display.

Display pixel module for use in a configurable large-screen display application and display with such pixel modules

An organic light-emitting diode drive circuit for a display application includes a plurality of organic light-emitting diodes (OLEDs) having an anode and a cathode, the organic light-emitting diodes being connected to anode lines and cathode lines, and at least one drive circuit. The organic light-emitting diodes are arranged in a common anode configuration, whereas the drive circuit is configured as a common anode drive device, so that each concerned cathode line can be connected by a respective first switch to a current source and so that each concerned anode line can be connected by a respective second switch to a positive power supply. The respective first switches are configured such that, when a cathode line is in use, a connection is made between the cathode line in use and the respective current source and, when the cathode line is unused, the cathode line is connected to a positive power supply.

Growing community of inventors

Cambridge, MA, United States of America

Herbert Van Hille