Patents Assigned to Global OLED Technologies LLC
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Patent number: 7973902Abstract: An electronic display containing a light source and a color filter set, the color filter set comprising: a green color filter having a green filter layer comprising a first pigment having its maximum absorption at a wavelength from 600 to 700 nm wherein at least 90 volume percent of the first pigment particles have a particle size less than 300 nm, and a second pigment having its maximum absorption at a wavelength from 400 to 500 nm wherein at least 90 volume percent of the second pigment particles have a particle size less than 300 nm, and wherein the green filter layer has a transmittance of 60% or more at a wavelength of 520 nm and of no more than 10% at a wavelength of 480 nm and of no more than 10% at a wavelength of 590 nm; a blue color filter having a blue filter layer; a red color filter having a red filter layer; and wherein the color gamut defined by the electronic display has a % NTSCx,y ratio greater than 88%.Type: GrantFiled: November 10, 2006Date of Patent: July 5, 2011Assignee: Global OLED Technology LLCInventors: Margaret J. Helber, Paula J. Alessi, Mitchell S. Burberry, Donald R. Diehl, Mary C. Brick, Steven Evans, Ronald S. Cok
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Patent number: 7973745Abstract: On a panel, a plurality of PVDD lines, each of which corresponds to a horizontal line of pixels and supplies power to the pixels of the horizontal line, are provided. A voltage drop correction unit that obtains a voltage drop before reaching the pixel, based on resistance in the plurality of power supply lines and currents flowing therein, and corrects display data so as to cancel the obtained voltage drop of the pixel. A display unevenness correction unit that corrects uneven brightness caused by a variation in a TFT characteristic of the pixel by performing a calculation using display data of the pixel and obtained correction data of the pixel.Type: GrantFiled: February 11, 2009Date of Patent: July 5, 2011Assignee: Global OLED Technology LLCInventors: Seiichi Mizukoshi, Nobuyuki Mori, Makoto Kohno, Kouichi Onomura
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Patent number: 7973470Abstract: A display device includes a substrate having at least one light-emitting element. The light-emitting element includes one electrically-continuous electrode formed over the substrate. A separator is located on the electrically-continuous electrode, dividing the electrically-continuous electrode into at least first and second separate electrode portions that remain electrically continuous. A transparent layer is located over the first electrode portion, while separated from the second electrode portion. A light-emitting layer is formed over the transparent layer and the second electrode portion. A second electrode is formed over the light-emitting layer. The first electrode portion, the transparent layer, the light-emitting layer, and the second electrode comprise a first optical cavity having a first optical path length.Type: GrantFiled: February 26, 2008Date of Patent: July 5, 2011Assignee: Global OLED Technology LLCInventor: Ronald S. Cok
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Patent number: 7973472Abstract: A display device includes a substrate having a display area; an adhesion layer formed on the substrate surface; a plurality of chiplets adhered to the substrate and distributed within the display area, each chiplet having one or more connection pads, wherein each chiplet has more than four sides; a plurality of pixels formed over the adhesion layer in the display area, each pixel having a bottom electrode electrically connected to a connection pad of one chiplet, one or more layers of light-emitting material formed over the bottom electrode, and a top electrode formed over the one or more layers of light-emitting material; and a cover located over the top electrode and adhered to the substrate.Type: GrantFiled: April 15, 2009Date of Patent: July 5, 2011Assignee: Global OLED Technology LLCInventor: Ronald S. Cok
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Patent number: 7973473Abstract: A flat panel OLED device including a transparent deformable substrate having first and second sides and defining a predetermined illumination region and a non-illumination region; a moisture-sensitive OLED disposed over the first side of the transparent substrate within the illumination region and means for applying electrical signals to the OLED which causes the OLED to produce light and heat; a protective layer disposed over the OLED; a flexible encapsulating foil disposed over the protective layer, but not attached thereto, and which dissipates the heat and sealingly connected to the substrate in the non-illumination region; and a rigid chassis structure operatively associated with the transparent deformable substrate for providing rigidity to the transparent deformable substrate.Type: GrantFiled: March 2, 2007Date of Patent: July 5, 2011Assignee: Global OLED Technology LLCInventors: Bradley C. DeCook, James Mazzarella, Roger G. Covington, Thomas W. Palone, Michael L. Boroson, Michele L. Ricks
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Patent number: 7969428Abstract: A full-color display system having improved apparent resolution comprising: a display formed from an array of full-color groups of light-emitting elements each comprising more than one luma-chroma sub-group of light-emitting elements; and a processor for receiving a full color input image signal that specifies full color image values at each of a two-dimensional number of sampled addressable spatial locations within an image to be displayed, for providing a full color image signal with image signal values corresponding to the spatial location of each luma-chroma sub-group, for computing a control signal representing the relative values, or difference between values, for the image signal values corresponding to each luma-chroma sub-group and at least one of each luma-chroma sub-group's neighbors, and for rendering a signal for driving each light-emitting element within each luma-chroma sub-group of light-emitting elements as a function of the values for the image signal corresponding to each luma-chroma sub-grType: GrantFiled: May 8, 2006Date of Patent: June 28, 2011Assignee: Global OLED Technology LLCInventors: Michael E. Miller, Ronald S. Cok, Paul J. Kane, Michael J. Murdoch
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Patent number: 7968215Abstract: An OLED device including a cathode, an anode, and having therebetween a light-emitting layer and further comprising a first layer between the light-emitting layer and the cathode containing a cyclobutene compound comprising a cyclobutene nucleus substituted in the 1-position with a five- or six-membered heteroaromatic ring group containing at least one trivalent nitrogen atom; substituted in the 2-position with an aromatic ring group; and substituted with a first methylene group in the 3-position and a second methylene group in the 4-position, provided said first and second methylene groups are further disubstituted in the 1?,1?-positions and the 1?,1?-positions with independently selected aromatic groups.Type: GrantFiled: December 9, 2008Date of Patent: June 28, 2011Assignee: Global OLED Technology LLCInventors: William J. Begley, Natasha Andrievsky
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Patent number: 7969085Abstract: A color-change material layer comprising: a color-change material that converts light of a second frequency range higher than a first frequency range to light of the first frequency range; and a transparent material having a refractive index of at least 1.6 intermixed with the color-change material, wherein the layer is substantially non-scattering to light of the first frequency range.Type: GrantFiled: August 18, 2006Date of Patent: June 28, 2011Assignee: Global OLED Technology LLCInventor: Ronald S. Cok
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Patent number: 7965305Abstract: A full color display system comprised of: a) a display which is formed from a two-dimensional array of three or more differently colored light-emitting elements arranged in a repeating pattern forming a first number of full-color two-dimensional groups of light-emitting elements, each full-color group of light-emitting elements being formed by more than one luma-chroma sub-group of light-emitting elements, wherein the display has a peak white luminance and each luma-chroma sub-group comprising at least one distinct high-luminance light-emitting element having a peak output luminance value that is 40 percent or greater of the peak white luminance of the display device; and b) a processor for providing a signal to drive the display by receiving a three-or-more color input image signal, which specifies three-or-more color image values at each of a two-dimensional number of sampled addressable spatial locations within an image to be displayed; wherein the processor dynamically forms re-sampling functions for imagType: GrantFiled: May 8, 2006Date of Patent: June 21, 2011Assignee: Global OLED Technology LLCInventors: Michael E. Miller, Ronald S. Cok
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Patent number: 7955719Abstract: A tandem OLED device including an anode; a cathode; at least two electroluminescent units disposed between the anode and the cathode, wherein each of the electroluminescent units includes at least one hole-transporting layer and one organic light-emitting layer; and an intermediate connector disposed between adjacent electroluminescent units, wherein the intermediate connector includes an n-doped organic layer and an electron-accepting layer, the electron-accepting layer being disposed closer to the cathode than the n-doped organic layer, and wherein the n-doped organic layer includes an alkali metal and an organic alkali metal complex.Type: GrantFiled: January 30, 2008Date of Patent: June 7, 2011Assignee: Global OLED Technology LLCInventors: Tukaram K. Hatwar, Jeffrey P. Spindler, William J. Begley
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Patent number: 7951450Abstract: A red color filter having a red filter layer comprising a pigment having a maximum absorption at a wavelength within the range of from 450 to 575 nm, wherein the red filter layer has chromaticity coordinates (x, y) in the 1931 CIE XYZ calorimetric system, calculated using CIE Standard illuminant D65, that satisfy the expressions 0.665?x?0.68 and 0.30?y?0.34.Type: GrantFiled: November 10, 2006Date of Patent: May 31, 2011Assignee: Global OLED Technology LLCInventors: Margaret J. Helber, Paula J. Alessi, Mitchell S. Burberry, Donald R. Diehl, Mary C. Brick, Steven Evans
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Patent number: 7952105Abstract: A light-emissive device includes a substrate having a first electrode formed on the substrate. A colloidal light-emitting layer comprising inorganic, light-emissive particles is formed over the first electrode. A second electrode is formed over the light-emitting layer. At least one of the first and second electrodes is transparent. The transparent electrode preferably has a refractive index substantially equal to or greater than the refractive index of the colloidal light-emitting layer. Finally, a light-scattering layer is formed on a side of the transparent electrode opposite the colloidal light-emitting layer.Type: GrantFiled: January 29, 2007Date of Patent: May 31, 2011Assignee: Global OLED Technology, LLC.Inventor: Ronald S. Cok
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Patent number: 7951421Abstract: A method of depositing a layer onto a substrate, comprising heating an evaporator to a temperature capable of completely evaporating the evaporant to be deposited, dispensing into the evaporator one or more quantized units of the evaporant where the evaporant is completely vaporized, providing an area vapor dispenser having a plurality of apertures, and directing the vaporized evaporant from the evaporator to the area vapor dispenser so that the evaporant is dispensed through the apertures to deposit the layer on the substrate.Type: GrantFiled: April 20, 2006Date of Patent: May 31, 2011Assignee: Global OLED Technology LLCInventors: Yuan-Sheng Tyan, Michael Long, Giana M. Phelan, Thomas R. Cushman
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Patent number: 7948506Abstract: A full-color display device, comprising: a) a display having a plurality of sub-pixels formed in rows or columns in a first dimension including at least three different color sub-pixels forming a color gamut, and grouped into pixels within each row or column, each pixel including at least two of the gamut-specifying color sub-pixels and at least one additional sub-pixel having a color within the gamut and an efficiency higher than at least one of the color sub-pixels, wherein at least one pixel is defective and comprises one defective additional in-gamut sub-pixel; and b) a controller for driving the display pixels and for transforming an input signal into a compensated signal for selectively modifying the output of at least one color sub-pixel in the defective pixel, at least one other, but not all, of the color sub-pixels in a neighboring pixel in the first dimension, and additional in-gamut sub-pixels in neighboring pixels in a second dimension, the at least one other color sub-pixel including the sub-pixeType: GrantFiled: November 15, 2005Date of Patent: May 24, 2011Assignee: Global OLED Technology LLCInventors: Ronald S. Cok, Paul J. Kane
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Patent number: 7948178Abstract: Hermetic seal for a device includes a substrate. A first strip on the substrate has a first surface wettability and a second strip on the substrate has a second surface wettability different from the first surface wettability. The seal further includes a first cover strip having the first surface wettability spaced from the first substrate strip and a second cover strip having the second surface wettability spaced from the second substrate strip in contact with the first cover strip. A sealing member wets and adheres to the first substrate and cover strips but not the second substrate and cover strips.Type: GrantFiled: March 4, 2009Date of Patent: May 24, 2011Assignee: Global OLED Technology LLCInventor: Ronald S. Cok
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Patent number: 7948165Abstract: A tandem OLED device having two spaced electrodes comprising: first and second light-emitting units that produce different emission spectra disposed between the electrodes, the first light-emitting unit produces light that has multiple peaks at wavelengths longer than 500 nm and substantially no emission at wavelengths shorter than 480 nm, and the second light-emitting unit produces light that has substantial emission at wavelengths shorter than 500 nm; and an intermediate connector disposed between the light-emitting units.Type: GrantFiled: May 9, 2007Date of Patent: May 24, 2011Assignee: Global OLED Technology LLCInventors: Jeffrey P. Spindler, Tukaram K. Hatwar
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Patent number: 7947974Abstract: An OLED device including an anode, a hole transporting layer (HTL), a light-emitting layer (LEL) comprising a host molecule and a light-emitting molecule, an electron transporting layer (ETL) and an cathode and wherein: (i) the HTL comprises a hole transporting material (HTM) having an oxidation potential that is at least 0.2 V less positive than the oxidation potential of the predominant material in the ETL and does not contain any bonds having an energy less than 105 kcal/mol; and (ii) the ETL comprises an electron transporting material (ETM) having a reduction potential (RPetm) relative to the reduction potential of the predominant material in the HTL (RPhtm) that meets the requirement of RPetm>(RPhtm?0.05). The OLED Device provides improvements in features including efficiency.Type: GrantFiled: March 25, 2008Date of Patent: May 24, 2011Assignee: Global OLED Technology LLCInventor: Denis Y. Kondakov
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Patent number: 7948172Abstract: A thin-film, white-light-emitting diode device includes a reflective, conductive thin-film structure and a semi-transparent, conductive thin-film structure. One or more thin-film layers are formed between the reflective and semi-transparent conductive thin-film structures to form two or more commonly-controlled microcavity structures. The thin-film layers emit white light in response to current provided by the conductive thin-film structure. Each of the two or more commonly-controlled microcavity structures has a different resonant frequency within one or more optical cavities and emits light with a smaller spectral range than the spectral range of the white-light-emitting thin-film layer(s). A combination of light emitted from the two or more commonly-controlled microcavity structures is white.Type: GrantFiled: September 28, 2007Date of Patent: May 24, 2011Assignee: Global OLED Technology LLCInventors: Ronald S. Cok, Michael E. Miller
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Patent number: 7940236Abstract: A passive matrix, electro-luminescent display system has a passive matrix, electro-luminescent display having an orthogonally oriented array of column and row electrodes and an electro-luminescent layer located between the electrodes at the intersection of each column and row electrode forming an individual light-emitting element. Drivers provide separate signals at different times to different groups of row electrodes within the array of row electrodes; wherein the row electrodes of each group simultaneously receive at least two different level signals. A display driver receives and processes the input image signal to provide a presharpened image control signal. Column drivers respond to the presharpened image control signal for simultaneously providing a signal to the multiple column electrodes within the array of column electrodes at the same time signals are provided to the groups of row electrodes so that the concurrence of row and column signals causes individual light-emitting element to produce light.Type: GrantFiled: April 20, 2007Date of Patent: May 10, 2011Assignee: Global OLED Technology LLCInventors: Michael E. Miller, John F. Hamilton, Jr., Andrew D. Arnold
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Patent number: 7931515Abstract: A method of manufacturing a micro-lens array and light-emitting device, comprising forming a first structured polymer film with close packed surface cavities having a mean diameter of less than 20 micrometers and a relatively lower surface energy surface, forming a transparent second structured film with an array of microlenses formed thereon corresponding to the cavities of the first structured film, wherein the second structured film comprises a relatively high surface energy material and has a refractive index greater than 1.45, and wherein the microlenses are randomly distributed, separating the second structured film with the micro-lens array from the first structured polymer film, and attaching the second structured film to a transparent substrate or cover of a light-emitting device through which light is emitted.Type: GrantFiled: May 21, 2010Date of Patent: April 26, 2011Assignee: Global OLED Technology LLCInventors: Krishnan Chari, Charles W. Lander, Liang-Sheng Liao, Paul D. Yacobucci