Color Patents (Class 345/83)
  • Patent number: 10332484
    Abstract: A terminal provided in the present disclosure, acquires values of one or more monitoring parameters. The terminal sets, according to the monitoring parameter, a blue light output value of a to-be-adjusted pixel displayed on a screen of the terminal when a value of at least one of the monitoring parameters meets a preset rule corresponding to the monitoring parameter, where the blue light output value is less than an original blue light output value of the to-be-adjusted pixel. The screen of the terminal displays the to-be-adjusted pixel according to the blue light output value such that the terminal can set, according to the monitoring parameter, the blue light output value of the to-be-adjusted pixel displayed on the screen of the terminal, and therefore the blue light can be adjusted intelligently, and an objective of vision protection without affecting user experience is achieved.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: June 25, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ming-Yu Chen, Tao Zheng, Guo Le
  • Patent number: 10186569
    Abstract: A display device includes a base, an organic light-emitting element including a stacked structure that has a first electrode layer, an organic light-emitting layer, and a second electrode layer that are stacked in order on the base, a drive element that is provided on the base, and drives the organic light-emitting element, and an auxiliary electrode layer provided on the base, and including an end surface that is in contact with the second electrode layer.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: January 22, 2019
    Assignee: SONY CORPORATION
    Inventor: Tatsuya Matsumi
  • Patent number: 10171783
    Abstract: An RGB signal to RGBY signal image converting method is disclosed and includes steps of: receiving RGB input signals Ri, Gi, Bi; determining whether a color of the RGB input signals is yellow; and calculating and outputting RGBY output signals Ro, Go, Bo, Yo when the color of the RGB input signals is not yellow, wherein Yo=0, RoGoBo=RiGiBi. An image converting system using the RGB signal to RGBY signal image converting method. The image converting method and system relatively increase a signal fidelity in converting the RGB signal to the RGBY signal.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: January 1, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Jinjun Wu
  • Patent number: 10170886
    Abstract: An RGB light source for a luminaire projector system includes Red, Green and Blue lasers each outputting a randomly polarized (RP) single mode (SM) light with at least a 4 nm spectral linewidth. The Green laser has a MOPFA-structured pump which outputs a pulsed pump beam at a fundamental wavelength in a 1 ?m wavelength range and further includes a SHG. The SHG includes an LBO nonlinear crystal receiving the pulsed pump beam and outputting a train of pulses of BB Green light. The Red laser is configured with a QCW fiber laser pump and a frequency converter with an LBO nonlinear crystal outputting a train of pulses of red light in a 6xx nm wavelength range.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: January 1, 2019
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Manuel Leonardo, Igor Samartsev, Alexey Avdokhin, Gregory Keaton
  • Patent number: 10117311
    Abstract: Systems and methods for operating one or more light emitting devices in a lighting array are disclosed. In one example, two or more negative temperature coefficient devices are electrically coupled in parallel so that a plurality of independently controlled lighting arrays may be controlled via a single amplifier. The two or more negative temperature coefficient devices are positioned in a negative feedback loop of the single amplifier.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: October 30, 2018
    Assignee: Phoseon Technology, Inc.
    Inventor: Salvatore T. Battaglia
  • Patent number: 10026350
    Abstract: A display device according to an exemplary embodiment of the present invention includes: a display unit configured to display a specific image according to first data supplied from the outside; an image compensator configured to receive a photographed image in which the specific image is photographed and generate variation information corresponding to luminance variations of pixels using the photographed image; an image corrector configured to generate second data by correcting the first data according to the variation information; and a data driver configured to generate a data signal using the first data or the second data and supply the data signal to the display unit.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: July 17, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byung Geun Jun, Min Cheol Kim, In Hwan Kim, Ui Yeong Cha
  • Patent number: 9997505
    Abstract: Various examples of a lighting device, backlight module and illumination module are described. A lighting device includes a carrier component, an LED chip, a thermistor, and a plurality of metal wires. The carrier component includes a plurality of electrodes. The LED chip and the thermistor are disposed on the carrier component and electrically coupled to each other. The plurality of metal wires form a circuit with the plurality of electrodes, the LED chip, and the thermistor. The thermistor has dimensions in chip-level scale when viewed from the top of the lighting device. A backlight module includes the aforementioned lighting device. An illumination module includes the aforementioned lighting device and a driver which is electrically coupled to the lighting device.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: June 12, 2018
    Assignee: EVERLIGHT ELECTRONICS CO., LTD
    Inventors: Yi-Hsin Lu, Yi-Hsiang Lin, Po Yu Chen
  • Patent number: 9991423
    Abstract: The disclosed technology provides micro-assembled micro-LED displays and lighting elements using arrays of micro-LEDs that are too small (e.g., micro-LEDs with a width or diameter of 10 ?m to 50 ?m), numerous, or fragile to assemble by conventional means. The disclosed technology provides for micro-LED displays and lighting elements assembled using micro-transfer printing technology. The micro-LEDs can be prepared on a native substrate and printed to a display substrate (e.g., plastic, metal, glass, or other materials), thereby obviating the manufacture of the micro-LEDs on the display substrate. In certain embodiments, the display substrate is transparent and/or flexible.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: June 5, 2018
    Assignee: X-Celeprint Limited
    Inventors: Christopher Bower, Matthew Meitl, David Gomez, Salvatore Bonafede, David Kneeburg, Alin Fecioru, Carl Prevatte
  • Patent number: 9952433
    Abstract: The present disclosure discloses a wearable device and a method of outputting content thereof. According to one embodiment, the wearable device for outputting the content according to the present invention includes a sensor, a display, and a processor configured to: determine an output mode of the wearable device based on tracking information detected by the sensor, and cause the display to display content in a playback window of a screen, wherein: the playback window corresponds to an entire portion of the display when the output mode is an active mode, and the playback window corresponds to a portion of the display when the output mode is an inactive mode, wherein the portion of the display is less than the entire portion of the display.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: April 24, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Sangwon Um, Sunryang Kim, Jongpil Won, Jeongho Ahn, Hyungmin Park
  • Patent number: 9818365
    Abstract: The present invention discloses a method and a device for adjusting a display picture to solve a problem in the prior art that when Greenish phenomenon of a liquid crystal display screen is alleviated, aperture ratio of the display panel is decreased so that power consumption of the screen is increased. The method for adjusting the display picture includes the steps of: receiving a first clock signal for controlling a data line voltage signal for a pixel of the first color in the display picture and receiving a second clock signal for controlling data line voltage signals for pixels of the other colors; and making a pulse width at high level of the first clock signal smaller than a high level pulse width of the second clock signal, wherein the first color is closer to green than other colors.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: November 14, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Chao Xu, Chunfang Zhang, Yan Wei, Heecheol Kim
  • Patent number: 9761637
    Abstract: In one example embodiment, a display device for suppressing reflected light includes a driving circuit and a display region which includes a plurality of pixels. In one example embodiment, the plurality of pixels includes a first pixel having a first light emitting element which includes a first light emitting portion having a first layer surface. In one example embodiment, first pixel includes a second light emitting element which includes a second light emitting portion having a second, different layer surface. In one example embodiment, the first pixel includes a third light emitting element which includes a third light emitting portion having a third, different layer surface.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: September 12, 2017
    Assignee: Sony Corporation
    Inventor: Hiroshi Sagawa
  • Patent number: 9680571
    Abstract: Techniques are disclosed for selective use of light-sensing devices in light-based communication (LCom). In accordance with some embodiments, the disclosed techniques can be used, for example, in determining how and when to utilize a given light-sensitive device, such as a camera or an ambient light sensor, of a receiver device for purposes of detecting the pulsing light of LCom signals transmitted by an LCom-enabled luminaire. In accordance with some embodiments, determination of whether to utilize only a camera, only an ambient light sensor, or a combination thereof in gathering LCom data may be based, in part or in whole, on factors including time, location, and/or context. In some cases, improvements in system resource usage may be realized using the disclosed techniques.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: June 13, 2017
    Assignee: OSRAM SYLVANIA Inc.
    Inventors: Christian Breuer, Anant Aggarwal, Barry Stout
  • Patent number: 9653663
    Abstract: A package for multiple LED's and for attachment to a substrate includes a body, which includes a top body layer, a cavity disposed through the top body layer and having a floor for bonding to the multiple LED's, and a thermal conduction layer bonded to the top body layer and having a top surface forming the floor of the cavity and a bottom surface. The thermal conduction layer includes a thermally conducting ceramic material disposed between the floor and the bottom surface. The package also includes a plurality of LED bonding pads in direct contact with the floor and configured to bond to the multiple LED's and a plurality of electrical bonding pads in direct contact with the floor, proximate to the LED bonding pads, and in electrical communication with a plurality of electrical contacts disposed on a surface of the body.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: May 16, 2017
    Assignee: LedEngin, Inc.
    Inventor: Xiantao Yan
  • Patent number: 9607555
    Abstract: A display apparatus includes: a light-emitting unit that includes a plurality of light-emitting devices; a display unit; a first determination unit configured to determine, in a region, whether a ratio of a total number of first type pixels is a first ratio or more; a second determination unit configured to determine, in the region, whether a ratio of a total number of second type pixels is a second ratio or more, when the determination result of the first determination unit is affirmative; and a control unit configured to increase emission brightness of a target device based on the determination result of the second determination unit.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: March 28, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takushi Kimura
  • Patent number: 9590019
    Abstract: A display apparatus capable of controlling light transmittance includes: a transparent organic light emitting device comprising a first region including an emission region capable of emitting light and a second region adjacent to the first region in a horizontal direction and including a transmission region capable of transmitting external light therethrough; and a light transmission control device coupled to and facing the transparent organic light emitting device, the light transmission control device comprising a third region formed at a location corresponding to the first region and a fourth region adjacent to the third region in the horizontal direction and positioned to correspond to the second region, wherein the fourth region comprises a sealed cavity having a transmission control material layer therein, and the transmission control material layer is configured to be selectively driven by the light transmission control device.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: March 7, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Sangil Kim
  • Patent number: 9589526
    Abstract: A pixel for a display device includes a first pixel area, a second pixel area, and a switching transistor coupled between a data line and the first and second pixel areas. The first pixel area includes a first threshold compensation point and the second pixel area includes a second threshold compensation point. The first threshold compensation point has a turn-on period different from a turn-on period of the second threshold compensation point, and at least one of the first pixel area or the second pixel area includes an organic light emitting diode.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: March 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Kwang-Sub Shin
  • Patent number: 9583547
    Abstract: An organic light-emitting display apparatus includes a plurality of pixels provided on a substrate, wherein each of the plurality of pixels includes: a first sub-pixel area for emitting light of a first color; a second sub-pixel area for emitting light of a second color different from the first color; a third sub-pixel area for emitting light of a third color different from the first and second colors; and a transmission area through which external light transmits, wherein the first through third sub-pixel areas and the transmission area are sequentially arranged on the substrate in a first direction.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: February 28, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Eun-Ho Kim, Mu-Hyun Kim, Su-Hwan Lee
  • Patent number: 9576518
    Abstract: A display panel and a driving circuit thereof are provided. The driving circuit includes a data signal supplying module for generating a data signal; a first selection signal generating module for providing a first selecting signal; a second selection signal generating module for providing a second selecting signal; a selecting module including selecting switch sets, which are utilized to receive the first and second selecting signals and output the data signal to a pixel array. The present invention is capable of decreasing a level switching frequency of the selecting signals.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: February 21, 2017
    Assignee: SHENZHEN CHINA OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventors: Qingcheng Zuo, Gonghua Zou
  • Patent number: 9564084
    Abstract: In a method of operating an organic light emitting display device, the organic light emitting display device including a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel, the method includes: receiving input data; calculating an on-pixel ratio (OPR) representing a ratio of a driving amount of the input data to a maximum driving amount; adjusting at least one gamma voltage of a first gamma voltage for the red, green, and blue sub-pixels and a second gamma voltage for the white sub-pixel according to the calculated OPR; and displaying an image corresponding to the input data using the first and second gamma voltages.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: February 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jong-Woong Park
  • Patent number: 9565735
    Abstract: A color temperature adjusting method of solid state light emitting device, including steps: providing a main light source which emits main light of a first color temperature; providing an adjusting light source, wherein the adjusting light source comprises a red light source, a green light source and a blue light source; and adjusting currents applied to the adjusting light sources to obtain an adjusting light, wherein the adjusting light mixes with the main light of the main light source to obtain an outgoing light of a second color temperature. The second color temperature is different from the first color temperature. The outgoing light has a chromaticity coordinate at a Plank's curve on a CIE 1931 chromaticity coordinates chart.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: February 7, 2017
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Chih-Chen Lai
  • Patent number: 9508288
    Abstract: There is provided an organic light emitting display device and a method of driving the same. The organic light emitting display device includes pixels, a data driver, a scan driver to sequentially supply scan signals to scan lines, and a control line driver configured to supply emission control signals to emission control line. The data driver is to discharge the gate electrodes of the driving transistors of the pixels at a uniform discharge speed in a third period within a second period, wherein the second period is after the first period, the third period corresponds to a light emitting gray scale of each pixel, and after the second period, the pixels emit light.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: November 29, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min-Cheol Kim, In-Hwan Kim, Byung-Geun Jun
  • Patent number: 9502435
    Abstract: Hybrid high electron mobility field-effect transistors including inorganic channels and organic gate barrier layers are used in some applications for forming high resolution active matrix displays. Arrays of such high electron mobility field-effect transistors are electrically connected to thin film switching transistors and provide high drive currents for passive devices such as organic light emitting diodes. The organic gate barrier layers are operative to suppress both electron and hole transport between the inorganic channel layer and the gate electrodes of the high electron mobility field-effect transistors.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: November 22, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ali Afzali-Ardakani, Bahman Hekmatshoartabari, Devendra K. Sadana, Davood Shahrjerdi
  • Patent number: 9503797
    Abstract: An audio and display system comprising a housing having an interior region, at least one audio speaker positioned within the interior region, and a display coupled to the housing. The display includes a frame coupled to the housing, the frame having a plurality of mounting members, wherein at least two adjacent mounting members of the plurality of mounting members are spaced apart by a first distance, a plurality of support members coupled to the mounting members of the frame, wherein at least two adjacent support members of the plurality of support members are spaced apart by a second distance, and a plurality of light-emitting elements coupled to each of the plurality of support members, wherein the display module is substantially acoustically transparent.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 22, 2016
    Assignee: Daktronics, Inc.
    Inventors: Matt Buisker, David Sturzenbecher, Dean Dodge, Dustin Treml
  • Patent number: 9504123
    Abstract: Hybrid high electron mobility field-effect transistors including inorganic channels and organic gate barrier layers are used in some applications for forming high resolution active matrix displays. Arrays of such high electron mobility field-effect transistors are electrically connected to thin film switching transistors and provide high drive currents for passive devices such as organic light emitting diodes. The organic gate barrier layers are operative to suppress both electron and hole transport between the inorganic channel layer and the gate electrodes of the high electron mobility field-effect transistors.
    Type: Grant
    Filed: November 1, 2015
    Date of Patent: November 22, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ali Afzali-Ardakani, Bahman Hekmatshoartabari, Devendra K. Sadana, Davood Shahrjerdi
  • Patent number: 9483971
    Abstract: The present invention provides a display method of a display panel. The display panel in the present invention includes a plurality of repeat units each comprising a first, a second and a third color sub-pixels sequentially arranged in a row. The display method includes steps: determining a first, a second and a third color components of each repeat unit; obtaining a first and a second distribution ratios of one repeat unit respectively according to each ratio of the first color component to the second color component and of the second color component to the third color component in their respective common units; and determining respective display components of the first to the third color sub-pixels of the one repeat unit according to a total value of the first to the third color components of the one repeat unit as well as the first and the second distribution ratios.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: November 1, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Renwei Guo, Xue Dong
  • Patent number: 9439989
    Abstract: Disclosed herein is a light fixture. The light fixture includes at least one first light source that emits at a peak wavelength in a range of approximately 380 nm to approximately 420 nm and at least one second light source that emits at a different peak wavelength, wherein a combined light output of the at least one first light source and the at least one second light source emits a colored light that is perceived as white light. The white light is defined by having a color rendering index (CRI) value of more than approximately 50. The at least one second light source that emits at a different peak wavelength consists of an xy coordinate on a International Commission on Illumination (CIE) 1931 xy color space diagram above a black body curve within a bounded area defined by a first line of approximately y=2.23989x?0.382773 and a second line of approximately y=1.1551x?0.195082.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: September 13, 2016
    Assignee: Vital Vio, Inc.
    Inventors: Jorel Lalicki, James W. Peterson
  • Patent number: 9431790
    Abstract: An OPO system is provided. The OPO system includes a pump laser and an OPO. The OPO is internal to the pump laser.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: August 30, 2016
    Assignee: Quantel USA
    Inventors: Justin Torgerson, Charles Lokey, Laine McNeil, Patrick Maine, Mark Enright
  • Patent number: 9400390
    Abstract: Aspects of the present invention relate to head worn computing lighting systems and stray light control.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: July 26, 2016
    Assignee: Osterhout Group, Inc.
    Inventors: Ralph F. Osterhout, John N. Border, Edward H. Nortrup
  • Patent number: 9373276
    Abstract: According to one embodiment of the present invention, an LED block display apparatus for providing an educational function comprises: a plurality of LED blocks that include a plurality of color LEDs; and a controller for providing a text completion function using the LED blocks. The controller transmits a text display signal for displaying glow text to the LED blocks so that the text can be displayed as being glow by the LED blocks. When the LED block related to the text display signal is clicked, the controller transmits a first color change signal for changing color to the clicked LED block, and outputs a notification signal when colors of the LED blocks related to the text display signal are all changed.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: June 21, 2016
    Assignee: CONSTANTEC CO., LTD.
    Inventor: Woon-Yong Choi
  • Patent number: 9349316
    Abstract: An organic light-emitting display device having a signal line that is shared by a first column of pixels and a second column of pixels to transmit a data signal and a sensing signal. The organic light-emitting display device includes a plurality of columns of pixels, and a plurality of signal lines extending between the plurality of columns of pixels. Each of the plurality of signal lines is configured to transmit a data signal from a data driver to the first column of pixels at first times. The data signals control the operation of an organic light-emitting element in the first column of pixels. The same signal line transmits a sensing signal from the second column of pixels to the data driver at second times. The sensing signal represents a variable property of an electrical component in a pixel of the second column of pixels.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: May 24, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Seung Tae Kim, Bum Sik Kim
  • Patent number: 9345117
    Abstract: A luminaire produces lighting as a series of frames of constant spectral content. The luminaire includes an interpreter for executing scripts that describe the spectral contents of respective frames. The scripts may include spectral data and executable code for altering the spectral data. In particular, a frame descriptor may include data for a frame, a repeat count indicating a number of frames, and an identifier for a subroutine to be called for each frame described by the frame descriptor. One or more luminaires can be network connected to one or more computers running applications providing user interfaces for script generation. A standardized interface can control communications with the luminaires and convert scripts from applications to a format that luminaires can interpret.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 17, 2016
    Assignee: Telelumen, LLC
    Inventor: Ross D. Archer
  • Patent number: 9324297
    Abstract: An image display unit, includes: an image display section having pixels each including red, green, blue, and white pixels; and a signal generating section configured to generate red, green, blue, and white sub-pixel signals, the signal generating section being configured to determine values of the red, green, and blue sub-pixel signals Rcvt, Gcvt, and Bcvt, based on a first matrix and a second matrix, with use of a coefficient ‘Purity’, an additive-color-mixture matrix, and a purity coefficient ‘?’, and being configured to employ a value of the white sub-pixel signal Wcvt as a value of min (RnL, GnL, BnL), where the min (RnL, GnL, BnL) represents a minimum value of the red-, green-, and blue-display image signal RnL, GnL, and BnL that are linearized and normalized and are provided for each of the pixels.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: April 26, 2016
    Assignee: SONY CORPORATION
    Inventors: Ryo Kasegawa, Akihito Nishiike
  • Patent number: 9257069
    Abstract: A controller for a display panel may include a first supply circuit to output first and second driving voltages to a sub-pixel of a first color; and a second supply circuit to output third and fourth driving voltages to a sub-pixel of a second color. The first driving voltage may be greater than the second driving voltage, and the third driving voltage may be greater than the fourth driving voltage. Also, at least three of the first, second, third, and fourth driving voltages may be different from one another.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: February 9, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Leonid Kaplan, Heung-Yeol Na, Ho-Ryun Chung, Wang-Jo Lee, Jang-Doo Lee
  • Patent number: 9210767
    Abstract: A lighting emitting diode (LED) device includes a first adjust module and a second adjust module. The first adjust module includes at least one first LED and has a first internal impedance having a first characteristic curve. A range covered by the first characteristic curve includes a first incomplete conduction region and a first conduction region. As the current increases from zero value and up, the first internal impedance decreases exponentially in the first incomplete conduction region, is approximately linear in the first conduction region. The second adjust module includes an impedance-providing component and an electronic component coupled in series. The second adjust module is coupled in parallel with the first adjust module. The second adjust module has a second internal impedance having a second characteristic curve. The first characteristic curve and the second characteristic curve match one another.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: December 8, 2015
    Assignee: Everlight Electronics Co., Ltd.
    Inventors: Chung-kai Chang, Shun-Chang Li, Cheng Hsi Hung
  • Patent number: 9189996
    Abstract: A lighting system includes a group of light emitting diode (LED) illumination devices. A user interface allows a user to select a scene that corresponds to a requirement to direct light of a specified color temperature and illuminance level to a location. A controller may cause the processor to identify a set of the illumination devices that correspond to the scene, and to generate commands to cause the device drivers for each of the identified illumination devices to control its corresponding illumination device so that the specified color temperature and illuminance level of light will be received at the location. A system and method for calibrating such a system is also disclosed.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: November 17, 2015
    Assignee: Ephesus Lighting, Inc.
    Inventors: Joseph R. Casper, Christopher D. Nolan, Joseph J. Witkowski, Jeff R. Shuster, Brian M. Wilson
  • Patent number: 9190586
    Abstract: A semiconductor light-emitting device includes at least one light-emitting chip. The light-emitting chip includes plural light-emitting units, which are electrically coupled to each other in series, in parallel or in series-parallel combination; a first-type electrode electrically coupled to an external power source, the first-type electrode being disposed on one of the light-emitting units; a second-type electrode disposed on another of the light-emitting units; and a tapped point for electrically coupling at least one of the light-emitting units to an electronic component.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: November 17, 2015
    Assignee: PHOSTEK, INC.
    Inventors: Shih Tsun Yang, Yuan-Hsiao Chang, Jhih-Sin Hong
  • Patent number: 9170665
    Abstract: Light emitting devices including sub-pixels having different numbers of emissive layers are provided. At least one sub-pixel of a first color may include a single emissive layer, and at least one sub-pixel of a second color may include multiple emissive layers disposed in a vertical stack. Light emitting devices in which different voltages are applied to each sub-pixel or group of sub-pixels are also provided. In some configurations, the voltage to be applied to a sub-pixel may be selected based upon the number of emissive layers in the sub-pixel.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: October 27, 2015
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Michael Hack, Julia J. Brown, Michael Stuart Weaver, Mauro Premutico
  • Patent number: 9159257
    Abstract: The organic light emitting display includes a plurality of pixels positioned at intersections of scan lines, emission control lines, and data lines, a scan driver for sequentially supplying scan signals to the scan lines at a first driving frequency in order to select the pixels in units of horizontal lines, and an emission driver for sequentially supplying emission control signals to the emission control lines at a second driving frequency different from the first driving frequency in order to control emission of the pixels.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 13, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Keum-Nam Kim, Sang-Moo Choi, Bo-Yong Chung, Hui Nam
  • Patent number: 9137864
    Abstract: Aspects of the disclosure provide light emitting diode (LED) lighting devices, and methods to drive the LED lighting devices. An LED lighting device includes a transformer having a primary winding on a receiving path to receive electric energy from an energy source and a secondary winding on a driving path. A terminal of the receiving path and a terminal of the driving path have a same voltage level, such as ground. Further, the LED lighting device includes a primary switch configured to switch on the receiving path to receive and store the electric energy in the transformer, and to switch off the receiving path to allow the driving path to deliver the stored electric energy. The LED lighting device also includes an LED array coupled to the driving path to emit light in response to the delivered electric energy.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: September 15, 2015
    Assignee: Marvell World Trade Ltd.
    Inventor: Sehat Sutardja
  • Patent number: 9117782
    Abstract: An OLED display is disclosed, which includes a substrate and a first and a second light emitting unit arranged on the substrate. A first, a second, a third and a fourth region are defined on the substrate, wherein the sub-pixels in the first and fourth regions and the sub-pixels in the second and third regions are symmetrical with each other. Alternatively, the sub-pixels in the first region and the sub-pixels in the third region are point symmetric to a center of the first light emitting unit, so as to improve displaying resolution of the OLED display.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: August 25, 2015
    Assignee: INNOLUX CORPORATION
    Inventors: Hao-Jung Huang, Chia-Pin Kang, Che-Wei Lin, Hao-Yu Chou
  • Patent number: 9052576
    Abstract: There is provided a projection apparatus including a plurality of light-emitting devices for respectively emitting lights of a plurality of colors, a projecting unit for forming an optical image of a plurality of color components for each frame and sequentially projecting the optical image, and a power control unit for adjusting power to be supplied to the plurality of light-emitting devices to correct a decrease in luminance due to heat generation of the plurality of light-emitting devices.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: June 9, 2015
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Mamoru Shibasaki, Hideo Suzuki
  • Patent number: 9035979
    Abstract: Disclosed herein is a driving method for an image display apparatus which includes an image display panel having a plurality of pixels arrayed in a two-dimensional matrix and each configured from a first subpixel for displaying a first primary color, a second subpixel for displaying a second primary color, a third subpixel for displaying a third primary color and a fourth subpixel for displaying a fourth color, and a signal processing section. The signal processing section is capable of calculating a first subpixel output signal, a second subpixel output signal, a third subpixel output signal, and a fourth subpixel output signal. The driving method includes a step of calculating a maximum value (Vmax(S)) of brightness, a saturation (S) and brightness (V(S)), and determining the expansion coefficient (?0).
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: May 19, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Masaaki Kabe, Amane Higashi, Yasuo Takahashi, Akira Sakaigawa
  • Patent number: 9035568
    Abstract: A display circuit includes a first pulse width modulated (PWM) signal line coupled to a first switch, a second PWM signal line coupled to a second switch and the signal line, a transistor coupled to the second signal line between the first signal line and the second switch, a third switch coupled to a third PWM signal line, a fourth switch coupled to a fourth PWM signal line, a fifth switch coupled to a fifth PWM signal line, a light emitting diode (LED) including a red element coupled between the first and third switches, a green element coupled between the first and fourth switches, and a blue element coupled between the first and fifth switches, and an LED including a red element coupled between the second and third switches, a green element coupled between the second and fourth switches, and a blue element coupled between the second and fifth switches.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: May 19, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Robert B. Ganton, James V. Pieronek, Rajeev D. Rajan
  • Patent number: 9030384
    Abstract: An OLED panel includes a plurality of pixels. Each pixel includes a first sub-pixel, a second sub-pixel and a third sub-pixel spaced from each other by a plurality of baffle plates. The first sub-pixel of each pixel is located adjacent to that of a neighboring pixel. The first sub-pixel of each pixel is spaced from that of the neighboring pixel by a partition plate. The partition plate has a height less than a height of each baffle plate.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: May 12, 2015
    Assignee: Ye Xin Technology Consulting Co., Ltd.
    Inventors: Jung-An Cheng, Liang-Neng Chien, Wei-Li Wang
  • Patent number: 9018853
    Abstract: A system and appertaining method calibrate a color LED light unit comprising at least first-, second-, and third-color LEDs, comprising: a) defining a target color on a color map to calibrate; b) selecting initial calibration coefficients associated with the target color; c) storing the initial or updated calibration coefficients in a non-volatile memory of the light unit; d) controlling the light unit to drive the LEDs to attempt to emit the target color, producing an attempted color, utilizing the calibration coefficients; e) measuring the attempted color to determine if it matches the target color within a predefined tolerance; f) if the attempted color matches the target color, then terminating the method; g) if the attempted color does not match the target color, then performing the following; h) selecting a color component; i) adapting at least one calibration coefficient associated with the selected color component; and j) performing (c)-(i) again.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: April 28, 2015
    Assignee: B/E Aerospace, Inc.
    Inventors: Eric Johannessen, Andrew B. Walsh, Kevin Lawrence, Richard Waring, Jr.
  • Patent number: 9012945
    Abstract: LED dies, emitting blue light, are provided on a first support substrate to form a light emitting layer. A mixture of a transparent binder, yellow phosphor powder, magenta-colored glass beads, and cyan-colored glass beads is printed over the light emitting surface. The mixture forms a wavelength conversion layer when cured. The beads are sized so that the tops of the beads protrude completely through the conversion layer. When the LED dies are on, the combination of the yellow phosphor light and the blue LED light creates white light. When the LEDs are off, white ambient light, such as sunlight, causes the conversion layer to appear to be a mixture of yellow light, magenta light, and cyan light. The percentage of the magenta and cyan beads in the mixture is selected to create a desired off-state color, such as a neutral color, of the conversion layer for aesthetic purposes.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: April 21, 2015
    Assignee: Nthdegree Technologies Worldwide Inc.
    Inventor: William J. Ray
  • Patent number: 9013380
    Abstract: An organic light emitting display is provided. The organic light emitting display includes a display unit coupled to scan lines and data lines and including pixels configured to receive first and second power sources, and a DC-DC converter for generating the first and second power sources. The DC-DC converter includes first and second power source generating units for generating the first and second power sources from an input power source and for outputting the first and second power sources to first and second output ends, a controller for controlling driving of the first and second power source generating units, and first and second short sensing units for outputting first and second short sensing signals to the controller when voltages of the first and/or second output ends are greater than or equal to corresponding first and second reference voltages.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: April 21, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeong-Min Seo, Sung-Cheon Park
  • Patent number: 9013381
    Abstract: Disclosed is an organic light emitting device which includes a first pixel displaying red, a second pixel displaying green, a third pixel displaying blue, and a fourth pixel displaying blue and forming a dot along with the first pixel, the second pixel, and the third pixel. The first to fourth pixels include a switching element and an organic light emitting element connected to the switching element, and the sum of the areas of the first to fourth pixels is substantially the same as the area of the dot.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: April 21, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyo-Seok Kim, Kyong-Tae Park
  • Patent number: 9013372
    Abstract: Disclosed herein is a display apparatus, including: a pixel array section including a plurality of pixels, a writing transistor, a driving transistor, a first switching transistor, a holding capacitor, and a second switching transistor; a first scanning section configured to drive the writing transistor in a unit of a row of the pixels; a second scanning section configured to drive the switching transistors in synchronism with scanning by the first scanning section; and a third scanning section configured to control the second switching transistors to a non-conducting state within a period after the image signal is written by the writing transistor until the signal writing period of the same row of the pixels ends but to a conducting state within any other period.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: April 21, 2015
    Assignee: Sony Corporation
    Inventors: Yutaka Mitomi, Masatsugu Tomida, Katsuhide Uchino
  • Patent number: RE46561
    Abstract: A display system includes a driver for operating a panel having a plurality of pixels arranged by a plurality of first lines and at least one second line The driver includes a driver output unit for providing to the panel a single driver output for activating the plurality of first lines, the single driver output being demultiplexed on the panel to activate each first line.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: September 26, 2017
    Assignee: Ignis Innovation Inc.
    Inventors: Gholamreza Chaji, Kongning Li, Vasudha Gupta, Arokia Nathan