Diverse-type Energizing Or Bias Supplies To Different Electrodes Patents (Class 315/169.1)
  • Patent number: 10249795
    Abstract: The invention provides an LED chip having an integrated electrostatic switch for electromechanical control of the LED. A suspended beam switch floats above a conductive control electrode, and by a charging of the electrode may be attracted downward to make connection between an LED structure and an external electrode. Components are mounted on a common substrate so that a fully integrated LED with MEMS switch is formed. Methods for producing the LED chip are further provided, in which production of the switching mechanism is fully integrated with the production of the LED structure.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: April 2, 2019
    Assignee: Koninklijke Philips N.V.
    Inventors: Peter Van Delft, Theodorus Johannes Petrus Van Den Biggelaar, Harald Josef Guenther Radermacher, Bob Bernardus Anthonius Theunissen
  • Patent number: 10241624
    Abstract: A display that includes energy sensors within the display itself is disclosed. An Organic Light Emitting Diode (OLED) can be made to operate both as a light emitter and as an energy detector. When forward biased with an appropriate driving signal, the OLED emits light via electroluminescence, which can be used to make a portion of an image on the display. In another mode, the OLED can detect energy by converting incoming photons or energy into an electrical signal by the photoelectric effect. By operating OLEDs in the display in both emissive and sensing modes, energy that shines on the display, such as from an outside source can be detected at the same time an image is shown. Additionally, a display including OLEDs can detect light energy generated by the display itself.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: March 26, 2019
    Assignee: INTEL CORPORATION
    Inventors: Lawrence A. Booth, Daniel Seligson
  • Patent number: 10234078
    Abstract: A LED light source comprises: a first rectifier with a first and a second input terminal for connection to an AC supply voltage source and a first and a second output terminal connected by a first LED-string, a second rectifier having a first and a second input terminal and output terminals, said first input terminal of said second rectifier being coupled to the first input terminal of the first rectifier and the second input terminal of the second rectifier being coupled to the second input terminal of the first rectifier, and the output terminals being connected by a second LED-string, and means for causing a phase shift between the voltages that are present during operation at the output terminals of the first rectifier and the output terminals of the second rectifier respectively. The LED strings are driven by very simple circuitry that can be supplied by mains supply voltage. Due to the phase shift stroboscopic effects are suppressed.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: March 19, 2019
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Antonius Adrianus Maria Marinus, Peter Deixler, Vincent Stefan David Gielen
  • Patent number: 10235939
    Abstract: A light emitting element display device with a narrow frame and high light emission efficiency is provided even when high definition is achieved. The light emitting element display device includes: a light emitting element which emits light at each of a plurality of subpixels forming one pixel; a drive transistor in which one of a source and a drain is connected to an anode of the light emitting element; and an output control circuit which selectively sets the other of the source and the drain of the drive transistor into one of a state of being connected to a power-supply voltage, a state of being connected to a reset voltage that is a lower voltage than the power-supply voltage, and a high-impedance state of not being connected to any of these voltages.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: March 19, 2019
    Assignee: Japan Display Inc.
    Inventors: Hiroyuki Kimura, Seiichiro Jinta
  • Patent number: 10217867
    Abstract: A method for forming fins includes patterning a fin cut mask over a fin etch mask to protect the fin etch mask in a fin region and etching a substrate in accordance with the fin cut mask to form fin cut regions. A first dielectric fill material is formed in the fin cut regions. The fin etch mask is exposed by removing the fin cut mask. Fins in the substrate are etched using the fin etch mask.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: February 26, 2019
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Peng Xu
  • Patent number: 10210796
    Abstract: In a lighting device provided with a light source module including a plurality of light sources, insufficiency of luminous intensity, illuminance unevenness, and the like due to a low-light light source are compensated for. The lighting device includes the light source module which is composed of the plurality of light sources in a matrix and mounted on a board. A drive circuit individually supplies power to the light sources. A processor controls a lighting status of each of the light sources via the drive circuit. The processor determines a low-light light source that is lower in luminous intensity than at least one light source among the plurality of light sources, and causes at least one light source adjacent to the low-light light source to emit light with a higher luminous intensity than the at least one other light source.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: February 19, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshihiko Kanayama, Yasuharu Ueno, Tomoyuki Ogata, Hiroya Tsuji
  • Patent number: 10210830
    Abstract: A display may have an array of pixels arranged in rows and columns. Each pixel may have a transistor for controlling the amount of output light associated with that pixel. The transistors may be thin-film transistors having active areas, first and second source-drain terminals, and gates. Gate lines may be used to distribute gate control signals to the gates of the transistors in each row. Data lines that run perpendicular to the gate lines may be used to distribute image data along columns of pixels. The gate lines may be connected to gate line extensions that run parallel to the data lines. The data lines may each overlap a respective one of the gate line extensions. Vias may be used to connect the gate line extensions to the gate lines. The gate line extensions may all have the same length.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: February 19, 2019
    Assignee: Apple Inc.
    Inventors: Byung Duk Yang, Szu-Hsien Lee, Kyung-Wook Kim, Shih Chang Chang, Chun-Yao Huang, Hao-Lin Chiu
  • Patent number: 10206261
    Abstract: An LED circuit with color temperature adjustment comprises a first LED string, a resistor, and a second LED string. The first LED string has a first color temperature. The resistor is connected in series with the first string. The second LED string has a second color temperature. The first LED string is connected in parallel with the second LED string. The second color temperature is higher than the first color temperature. The integrated color temperature of the first LED string and the second LED string increases when the total current of the first LED string and the second LED string increases. The present disclosure not only can provide an LED circuit with color temperature adjustment, but also can provide an LED circuit which can adjust the color temperature by the combinations of the LED strings connected in parallel or series.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: February 12, 2019
    Assignee: XIAMEN ECO LIGHTING CO. LTD.
    Inventors: Qiyuan Wang, Wenchang Huang, Guangai Chen, Huiwu Chen
  • Patent number: 10168820
    Abstract: An array substrate, a display panel, a touch display device and a driving method for the same are disclosed. The array substrate includes: at least one pixel group pixel group including sub-pixel units arranged in four rows and two columns; three scan lines arranged row-wise and at least three data lines intersecting the scan lines. The sub-pixel units are electrically connected in a manner that different sub-pixel units are electrically connected to different combinations of a scan line and a data line.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: January 1, 2019
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Gujun Li, Kang Yang, Yungang Sun
  • Patent number: 10147362
    Abstract: A pixel circuit and a display apparatus. The pixel circuit comprises three sub-pixel circuits and one power supply circuit, wherein the three sub-pixel circuits share a data line; the power supply circuit is connected to a first voltage level terminal, a first signal control line and the sub-pixel circuits, and the power supply circuit is configured to supply a first voltage level to the sub-pixel circuits through the first voltage level terminal under the control of a signal of the first signal control line; and the sub-pixel circuits are connected to the power supply circuit and the data line), and are configured to display a gray scale under the control of the first voltage level supplied by the power supply circuit and a data signal of the data line.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: December 4, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Shengji Yang
  • Patent number: 10140925
    Abstract: A system is provided for controlling an array of pixels in a display in which each pixel includes a light-emitting device and a reference voltage source that controllably supplies a reference voltage having a magnitude that turns off the light-emitting device. While the reference voltage is coupled to a drive transistor, a control voltage is supplied to the gate of the drive transistor to cause the drive transistor to transfer to a node common to the drive transistor and the light-emitting device, a voltage that is a function of the threshold voltage and mobility of the drive transistor. During an emission cycle, the current conveyed through the light emitting device via the drive transistor is controlled by a voltage stored in the storage capacitor, which is a function of the threshold voltage and mobility of the drive transistor so that the current supplied to the light-emitting device remains stable.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: November 27, 2018
    Assignee: Ignis Innovation Inc.
    Inventor: Gholamreza Chaji
  • Patent number: 10127860
    Abstract: A method and system for operating a pixel array having at least one pixel circuit is provided. The method includes repeating an operation cycle defining a frame period for a pixel circuit, including at each frame period, programming the pixel circuit, driving the pixel circuit, and relaxing a stress effect on the pixel circuit, prior to a next frame period. The system includes a pixel array including a plurality of pixel circuits and a plurality of lines for operation of the plurality of pixel circuits. Each of the pixel circuits includes a light emitting device, a storage capacitor, and a drive circuit connected to the light emitting device and the storage capacitor. The system includes a drive for operating the plurality of lines to repeat an operation cycle having a frame period so that each of the operation cycle comprises a programming cycle, a driving cycle and a relaxing cycle for relaxing a stress on a pixel circuit, prior to a next frame period.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: November 13, 2018
    Assignee: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Chaji
  • Patent number: 10089929
    Abstract: A pixel circuit for use in a display comprising a plurality of pixels is provided. The load-balanced current mirror pixel circuit can compensate for device degradation and/or mismatch, and changing environmental factors like temperature and mechanical strain. The pixel circuit comprises a pixel drive circuit comprising, switching circuitry, a current mirror having a reference transistor and a drive transistor, the reference transistor and the drive transistor each having a first and second node and a gate, the gate of the reference transistor being connected to the gate of the drive transistor; and a capacitor connected between the gate of the reference transistor and a ground potential, and a load connected between the current mirror and a ground potential, the load having a first load element and a second load element, the first load element being connected to the first node of the reference transistor and the second load element being connected to the first node of the drive transistor.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: October 2, 2018
    Assignee: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Kapil V. Sakariya, Peyman Servati, Shahin Jafarabadiashtiani
  • Patent number: 10090832
    Abstract: In a controller for applying a first drive voltage signal to one of parallel-connected first and second switching elements to perform a predetermined switching operation of one of the first switching element and the second switching element according to change of a first drive voltage in one of the first and second switching elements, a voltage detector detects the first drive voltage of one of the first and second switching elements. A delaying unit delays an application of a second drive voltage signal to the other of the first switching element and the second switching element to perform the predetermined operation of the other of the first switching element and the second switching element according to change of a second drive voltage in the other thereof while the first drive voltage in one of the first and second switching elements is substantially a predetermined Miller voltage.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: October 2, 2018
    Assignee: DENSO CORPORATION
    Inventors: Yoshinori Hayashi, Tomotaka Suzuki
  • Patent number: 10064259
    Abstract: A vehicle badge is provided herein. The badge includes one or more light sources configured to illuminate in a pseudorandom sequence. Each respective light source illuminates in a first illumination sequence defined by a first set of parameters and a subsequent second illumination sequence defined by a second set of parameters. A controller is operably coupled with the light sources and has a counter therein. The counter determines the subsequent illumination sequence while the first illumination sequence occurs.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: August 28, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Pietro Buttolo, Stuart C. Salter, Paul Kenneth Dellock, James J. Surman, James Stewart Rankin
  • Patent number: 10032834
    Abstract: Provided is a light receiving/emitting element and a light receiving/emitting apparatus that can be easily manufactured and allow high-sensitivity detection. The light receiving/emitting element is configured to include a first organic photoelectric conversion unit and a second organic photoelectric conversion unit that is disposed on the first organic photoelectric conversion unit and is different in spectral sensitivity from the first organic photoelectric conversion unit, wherein one of the first organic photoelectric conversion unit and the second organic photoelectric conversion unit acts as a light receiving unit and the other acts as a light emitting unit. The light receiving/emitting apparatus is configured to have the light receiving/emitting element mounted thereon.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: July 24, 2018
    Assignee: SONY CORPORATION
    Inventors: Toru Udaka, Masaki Murata, Rui Morimoto, Osamu Enoki
  • Patent number: 10025158
    Abstract: Embodiments of the present disclosure relate to a light emitting display device and a method for manufacturing the same. The light emitting display device comprises one or more pixel units, each of which is provided with a transparent light emitting device on a substrate, wherein at least a part of the pixel units are provided with a switchable mirror, which is located between the substrate and the light emitting device and is switchable between a transmission mode and a reflection mode.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: July 17, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Boris Kristal
  • Patent number: 10026348
    Abstract: Driving methods and display systems are described for operating a display panel in flash mode. In an embodiment, the driving method includes time multiplexing between at least two panel operation voltage (VOP) levels including a first VOP level and a second VOP level across all Vdd input lines to a display area, and emitting a first wavelength range from a first subpixel group during application of the first VOP level across all of the Vdd input lines and emitting a second wavelength range from a second subpixel group during application of the second VOP level across all of the Vdd input lines.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: July 17, 2018
    Assignee: APPLE INC.
    Inventors: Hung Sheng Lin, Chin-Wei Lin, Hyunwoo Nho
  • Patent number: 10018838
    Abstract: An electronic display is driven to compensate for aging of pixels in the electronic display. An aging factor is determined based on initial display data for a display portion of the electronic display during one or more monitored frames. The aging factor is indicative of aging of pixels in the display portion of the electronic display due to use corresponding to the initial display data. An aging counter for the display portion is increased based on the determined aging factor. A compensation value is determined for the display portion based on the aging counter for the display portion. Input display data for the display portion is modified during a subsequent frame according the determined compensation value. The display portion is driven with the modified input display data during the subsequent frame.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: July 10, 2018
    Assignee: Oculus VR, LLC
    Inventors: Evan Mark Richards, Nirav Rajendra Patel, Andrew T. Forsyth
  • Patent number: 9997101
    Abstract: A gate scan circuit is provided, which can include a first and a second control units, a first and second output units, and a first capacitor. The first control unit can control a voltage at a first node based on clock signals and an input signal. The second control unit can control a voltage at a second node based on a clock signal and a power source signal. The first and second output units can output a clock signals or power source signals based on the voltage at the first or second node. The first capacitor can include a first terminal receiving the second power source signal and a second terminal connected to the second node. The gate scan circuit may output two scan signals within one circuit, thereby narrowing the frame.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: June 12, 2018
    Assignees: Shanghai Tianma AM-OLED Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventors: Kuo Sun, Wenhui Zou
  • Patent number: 9983740
    Abstract: An apparatus and a method of manufacturing the apparatus is provided. The apparatus comprises: a first electromagnetic shielding layer; a second electromagnetic shielding layer; at least one sensing layer, positioned between the first electromagnetic shielding layer and the second electromagnetic shielding layer, comprising an array of touch sensors and multiple traces for connecting the touch sensors to touch sensing circuitry; and at least one electromagnetic shielding wall, extending from the first electromagnetic shielding layer to the second electromagnetic shielding layer, for shielding one or more of the multiple traces from conductive user input objects.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: May 29, 2018
    Assignee: Nokia Technologies Oy
    Inventors: Esa Juhani Mäkeläinen, Janne Edvin Lesonen
  • Patent number: 9984615
    Abstract: There is provided a pixel driving circuit, a driving method, an array substrate and a display device. The pixel driving circuit comprises: a first switching unit, being turned on or off according to a first scanning signal to control a transmission of a data signal; a first charging unit, having first terminal connected to a second terminal of the first switching unit; a first driving unit, having control terminal connected to a second terminal of the first charging unit, first terminal connected to a first power supply, and second terminal connected to a second power supply; a first driving compensation unit, for producing a predetermined voltage at the control terminal of the first driving unit, so that a current flowing through the light-emitting device is independent of threshold voltage of the first driving unit. Accordingly, the threshold voltage is prevented from affecting light-emitting luminance, luminance uniformity is ensured.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: May 29, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Zuquan Hu
  • Patent number: 9974130
    Abstract: A device for driving several light sources is suggested comprising a shift register comprising at least two cells, wherein an output of each cell controls one of the several light sources; wherein the at least two cells are connected in series and are driven by a clock signal; wherein each cell of the shift register comprises a flip-flop and a register; wherein the output of the flip-flop is connected with the input of the register; wherein the register is arranged to store the output of the register based on an update signal and wherein the output of the register controls one of the light sources; wherein the flip-flops of the at least two cells are filled with a data signal based on the clock signal; and wherein after a predetermined number of cycles of the clock signal the update signal is conveyed to the registers driving the light sources according to the values stored in the flip-flops of the cells.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: May 15, 2018
    Assignee: Infineon Technologies AG
    Inventors: Adolfo De Cicco, Andrea Scenini, Giovanni Capodivacca
  • Patent number: 9959829
    Abstract: The present invention relates to a liquid crystal drive display device, including a display area and a liquid crystal drive circuit, the liquid crystal drive circuit including a plurality of stage GOA circuits, each stage GOA circuit includes a signal line and an auxiliary pull-down circuit, wherein the signal lines are divided into odd-numbered signal lines and even-numbered signal lines, the auxiliary pull-down circuits are divided into first auxiliary pull-down circuits and second auxiliary pull-down circuits; wherein the odd-numbered signal lines and the even-numbered signal lines are separately located on two sides of the display area, and the first auxiliary pull-down circuits and the second auxiliary pull-down circuits are also separately located on two sides of the display area, any two adjacent stage GOA circuits of the plurality of stage GOA circuits share the first auxiliary pull-down circuits and the second auxiliary pull-down circuits.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: May 1, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Peng Du
  • Patent number: 9953563
    Abstract: A data line drive circuit provides a voltage according to a detection voltage and to a reference voltage, between the gate and source of a drive transistor in a pixel circuit, and detects a drive current having passed through the drive transistor and outputted external to the pixel circuit. A threshold voltage correction memory stores, for each pixel circuit, data representing a threshold voltage of the drive transistor. A display control circuit controls the reference voltage based on the data stored in the threshold voltage correction memory. By this, even if the threshold voltage of the drive transistor is changed, the drive current can be detected with a high accuracy. The threshold voltage correction memory may store, for each pixel circuit, data representing a difference between the threshold voltage of the drive transistor and the reference voltage.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: April 24, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Noritaka Kishi, Hiromitsu Katsui, Noboru Noguchi, Masanori Ohara, Shigetsugu Yamanaka, Yoshifumi Ohta
  • Patent number: 9934738
    Abstract: The present invention provides a panel signal control circuit, a display panel and a display device. The panel signal control circuit comprises: a PWM IC and a level shift IC, and the panel signal control circuit comprises further comprises: a Vin voltage divider circuit; one end of the Vin voltage divider circuit is coupled to an input port of an input working voltage Vin of the PWM IC, and the other end of the Vin voltage divider circuit is grounded; a voltage divider interface of the Vin voltage divider circuit is coupled to a pin a of the Level shift IC, and the pin a is a voltage monitor pin, and as the voltage of the pin a is lower than an activation voltage threshold, respective output clock CK pins of the Level shift IC output sync signals of an output working voltage VGH of the PWM IC.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: April 3, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Hua Zhang
  • Patent number: 9928781
    Abstract: A plurality of display pixels each include: an organic EL element; a capacitance element that holds a first voltage used to cause the organic EL element to emit light; a drive transistor that supplies a current corresponding to the first voltage to the organic EL element; and a capacitance element that holds a second voltage that is a next voltage to be held in the capacitance element. A power line is connected to a drain electrode of the drive transistor or a cathode of the organic EL element. An adjustment unit adjusts the voltage applied to the power line to be lower than the predetermined voltage, when a total current of the plurality of display pixels in the case where a current corresponding to the second voltage is supplied to the organic EL element in each of the plurality of display pixels is greater than or equal to a threshold.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: March 27, 2018
    Assignee: JOLED INC.
    Inventors: Jun Kamiyamaguchi, Hiroshi Takahara
  • Patent number: 9915838
    Abstract: The present invention is related to display technology. Embodiments of the present invention provide a display panel and a method for fabricating the same which can prevent light leakage of the display panel. The display panel comprises a central area and a peripheral area surrounding the central area, wherein the central area is applied with horizontal electric field or multi-dimensional electric field, the peripheral area is applied with vertical electric field.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: March 13, 2018
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.
    Inventors: Sha Liu, Feng Zhao
  • Patent number: 9917145
    Abstract: A light-emitting device includes a drive transistor for controlling the quantity of current supplied to a light-emitting element, a capacitor element electrically connected to a gate electrode of the drive transistor, and an electrical continuity portion for electrically connecting the drive transistor and the light-emitting element, these elements being disposed on a substrate. The electrical continuity portion is disposed on the side opposite to the capacitor element with the drive transistor disposed therebetween.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: March 13, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takehiko Kubota, Eiji Kanda, Ryoichi Nozawa
  • Patent number: 9911383
    Abstract: A pixel circuit able to prevent a spread of the terminal voltages of drive transistors inside a panel and in turn able to reliably prevent deterioration of uniformity, wherein a source of a TFT serving as a drive transistor is connected to an anode of a light emitting element, a drain is connected to a power source potential, a capacitor is connected between a gate and source of the TFT, and a source potential of the TFT is connected to a fixed potential through a TFT serving as a switch transistor and wherein pixel circuit lines are connected by an upper line and bottom line and are arranged in parallel with pixel circuit power source voltage lines so as not to have intersecting parts.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: March 6, 2018
    Assignee: SONY CORPORATION
    Inventors: Katsuhide Uchino, Junichi Yamashita, Tetsuro Yamamoto
  • Patent number: 9892676
    Abstract: A gate driving circuit (12, 13), a display circuit, a driving method thereof and a display apparatus are provided. The gate driving circuit (12, 13) comprises at least three GOA units, each of which comprises a signal input terminal (INPUT), an output terminal (OUT), a reset terminal (RESET) and an idle output terminal (COUNT). The gate driving circuit, the display circuit and the driving method and the display apparatus are capable of providing a matched gate driving signal in the process of threshold compensation outside pixels and applicable to manufacture a displayer.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: February 13, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kun Cao, Zhongyuan Wu
  • Patent number: 9893136
    Abstract: An organic light emitting display device includes a substrate on which is included pixel columns extending in a column direction and adjacent to each other in a row direction, data lines extending in the column direction and adjacent to each other and between the pixel columns in the row direction, a power source line extending in the column direction, a scan line extending in the row direction, a switching transistor connected to the scan line and one of the data lines, a driving transistor connected to the switching transistor, an OLED connected to the driving transistor, and a storage capacitor including a first storage capacitor plate and a second storage capacitor plate overlapping the first storage capacitor plate in a thickness direction, connected to the power source line, and having a portion extending in the column direction between and not overlapping the data lines in the thickness direction.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: February 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Woo Byun, Kyoung Jin Park
  • Patent number: 9881544
    Abstract: A pixel circuit for AC driving, a driving method and a display apparatus relate to display manufacturing field, and are capable of removing effect of internal resistance of a power supply line on a current for light-emitting and effect of a threshold voltage of a driving transistor on the display nonuniformity of a panel while effectively avoiding rapid aging of OLED. The pixel circuit includes: a first capacitor, a second capacitor, a first voltage input unit, a second voltage input unit, a data signal input unit, a first light emitting unit and a second light emitting unit.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: January 30, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Haigang Qing, Xiaojing Qi
  • Patent number: 9876034
    Abstract: A device comprising an array of transistors, wherein the device comprises: a first conductor layer at a first level defining a plurality of first conductors providing either source or gate electrodes for said array of transistors; a second conductor layer at a second level defining a plurality of second conductors providing the other of source or gate electrodes for said array of transistors; wherein said second conductor layer further defines routing conductors at one or more locations between said second conductors, each routing conductor connected by one or more interlayer conductive connections to a respective first conductor.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: January 23, 2018
    Assignee: FLEXENABLE LIMITED
    Inventor: Stephan Riedel
  • Patent number: 9870736
    Abstract: A display device is disclosed. The display device includes: a pixel array unit and a driving unit which drives the pixel array unit. The pixel array unit includes rows of first scanning lines and second scanning lines, columns of signals, pixels in a matrix state arranged at portions where the scanning lines and the signal lines cross each other and power supply lines and ground lines supplying power to respective pixels. The driving unit includes a first scanner performing line-sequential scanning to pixels by each row by supplying a first control signal to each first scanning line sequentially, a second scanner supplying a second control signal to each second scanning line sequentially so as to correspond to the line-sequential scanning and a signal selector supplying a video signal to rows of signal lines so as to correspond to the line-sequential scanning.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: January 16, 2018
    Assignee: Sony Corporation
    Inventors: Junichi Yamashita, Takao Tanikame, Katsuhide Uchino
  • Patent number: 9857903
    Abstract: An in-cell touch display structure includes: an upper substrate, a lower substrate, a liquid crystal layer configured between the upper and lower substrates; a black matrix layer, and a thin film transistor and sensing electrode layer. The thin film transistor and sensing electrode layer includes a gate line sub-layer having a plurality of gate lines and a plurality of connection segments separated by the gate lines, and a source line sub-layer having a plurality of source lines and a plurality of sensing conductor segments separated by the source lines, wherein part of the sensing conductor segments and part of the connection segments are electrically connected together to form a plurality of sensing conductor blocks.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: January 2, 2018
    Assignee: SUPERC-TOUCH CORPORATION
    Inventor: Hsiang-Yu Lee
  • Patent number: 9858891
    Abstract: There is a display control apparatus including a dummy pixel region provided in a region different from a display region in which various images are displayed, and a temperature detector detecting a temperature of the dummy pixel region.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: January 2, 2018
    Assignee: SONY CORPORATION
    Inventor: Takayuki Ohe
  • Patent number: 9847381
    Abstract: By controlling the luminance of light emitting element not by means of a voltage to be impressed to the TFT but by means of controlling a current that flows to the TFT in a signal line drive circuit, the current that flows to the light emitting element is held to a desired value without depending on the characteristics of the TFT. Further, a voltage of inverted bias is impressed to the light emitting element every predetermined period. Since a multiplier effect is given by the two configurations described above, it is possible to prevent the luminance from deteriorating due to a deterioration of the organic luminescent layer, and further, it is possible to maintain the current that flows to the light emitting element to a desired value without depending on the characteristics of the TFT.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: December 19, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Mai Akiba, Jun Koyama
  • Patent number: 9837443
    Abstract: Provided is a display device, including: a plurality of gate lines extending in a first direction; a plurality of source lines extending in a second direction; a gate driver configured to output a gate signal; and a plurality of gate lead-out lines extending in the second direction and being configured to transmit the gate signal to the plurality of gate lines, in which each of the plurality of gate lines is electrically connected to at least one of the plurality of gate lead-out lines, and at least one of the plurality of gate lines is electrically connected to at least two of the plurality of gate lead-out lines.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: December 5, 2017
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tetsuya Kawamura, Hironori Yasukawa
  • Patent number: 9837628
    Abstract: A display panel and a display device are provided. The display panel comprise a substrate having a display region, a plurality of pixel units arranged in an array and disposed in the display region of the substrate, a conductive member disposed in a peripheral region of the display region, a plurality of input pins electrically connected to the conductive member and transferring a voltage of an external power supply to the conductive member, and a plurality of power supply lines electrically connected to the conductive member and transferring the voltage from the conductive member to the pixel units.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: December 5, 2017
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Zhili Ma, Dong Qian, Dongsheng Xu
  • Patent number: 9812468
    Abstract: Provided is a display device, including: a plurality of gate lines extending in a first direction; a plurality of source lines extending in a second direction; a gate driver configured to output a gate signal; and a plurality of gate lead-out lines extending in the second direction and being configured to transmit the gate signal to the plurality of gate lines, in which each of the plurality of gate lines is electrically connected to at least one of the plurality of gate lead-out lines, and at least one of the plurality of gate lines is electrically connected to at least two of the plurality of gate lead-out lines.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: November 7, 2017
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tetsuya Kawamura, Hironori Yasukawa
  • Patent number: 9805655
    Abstract: The present invention provides a pixel circuit and a driving method thereof, as well as a display device. The pixel circuit comprises a drive transistor and a first energy storage element, a source of the drive transistor being connected with a first end of the first energy storage element. The pixel circuit further comprises a driving module, and has a reset voltage input terminal, a data voltage input terminal, a working voltage input terminal and a plurality of control signal input terminals. The pixel circuit provided by the present invention can prevent the driving current flowing through the electroluminescent unit from being influenced by the turn-on threshold value of the corresponding drive transistor, thereby solving the problem of non-uniform display brightness caused by drift of the turn-on threshold value of the drive transistor thoroughly.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: October 31, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY TECHNOLOGY CO., LTD
    Inventors: Xu Zhang, Zhihua Sun, Jianming Wang, Weichao Ma, Seungmin Lee, Honglin Zhang, Zhihao Zhang
  • Patent number: 9799258
    Abstract: The present invention discloses a driving circuit according to RGBW and a flat panel display. In the driving circuit: control terminals of a first and second voltage-level switches and a first non-voltage-level switch are connected to a first driving line, input terminals are connected to a driving signal source, output terminals are respectively connected to input terminals of a third non-voltage-level switch, a third and fourth voltage-level switches, control terminals of the third non-voltage-level switch and the third and fourth voltage-level switches are connected to a second driving line, output terminals of the third non-voltage-level switch and the third and fourth voltage-level switches are connected to a first to third sub-pixels. The circuit can implement that a size occupied by the driving lines is decreased and the aperture ratio of the display is increased.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: October 24, 2017
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd, Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Gonghua Zou, Chang Cao, Chunpeng Guo
  • Patent number: 9786725
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the display includes a scan line formed over a substrate and configured to provide a scan signal. A data line crossing the scan line is configured to respectively provide a data voltage, and a driving voltage line crossing the scan line is configured to respectively provide a driving voltage. The display includes a switching transistor electrically connected to the scan line and the data line and including a drain electrode configured to output the data voltage. A driving transistor includes a driving gate electrode electrically connected to the drain electrode of the switching transistor. A contact hole is formed between the driving gate electrode and the data line, and the driving voltage line passes through the contact hole to be connected to a conductive layer.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 10, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Soo Pyon, Seung Woo Sung
  • Patent number: 9786225
    Abstract: An organic light emitting diode display with improved aperture ratio includes: a substrate; first and second pixels disposed in a first row of the substrate and third and fourth pixels disposed in a second row adjacent to the first row and respectively disposed in the same columns as the first and second pixels; a scan line and a previous scan line applying a scan signal and a previous scan signal, respectively, to the pixel units; a data line and a driving voltage line applying a data signal and a driving voltage, respectively, to the pixel units; and a common initialization voltage line disposed between the first and second pixels and between the third and fourth pixels, commonly connected to the pixel units, and applying an initialization voltage. One common initialization contact hole connected to all pixels units and one initialization voltage line connected to the common initialization contact hole are surrounded by the pixel units.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: October 10, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ju-Hee Hyeon, Hyun-Chol Bang
  • Patent number: 9779686
    Abstract: An electronic display is driven to compensate for aging of pixels in the electronic display. An aging factor is determined based on initial display data for a display portion of the electronic display during one or more monitored frames. The aging factor is indicative of aging of pixels in the display portion of the electronic display due to use corresponding to the initial display data. An aging counter for the display portion is increased based on the determined aging factor. A compensation value is determined for the display portion based on the aging counter for the display portion. Input display data for the display portion is modified during a subsequent frame according the determined compensation value. The display portion is driven with the modified input display data during the subsequent frame.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: October 3, 2017
    Assignee: Oculus VR, LLC
    Inventors: Evan Mark Richards, Nirav Rajendra Patel, Andrew T. Forsyth
  • Patent number: 9775204
    Abstract: The light-emitting module according to one embodiment comprises first to Nth light-emitting element packages (wherein N is a positive integer greater than or equal to 1), which are connected in series to one another, and a current level regulator for regulating the level of current flowing through the Nth light-emitting element package. Each of the first to Nth light-emitting element packages comprises a light-emitting cell comprising a plurality of sub-cells, which comprise at least one light-emitting element and are connected in series or parallel to one another, and a flicker control unit, which is connected between the plurality of sub-cells and selectively forms the path of current flowing through the light-emitting cell according to the level of an external driving voltage. At least one of the first to Nth light-emitting element packages further comprises a first current control resistor connected to the output of the light-emitting cell.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: September 26, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Il Yeong Kang, Sang Hoon Lee, Jong Won Jeon, Keun Tak Joo, Tae Young Choi
  • Patent number: 9773449
    Abstract: A pixel circuit with an organic light emitting diode (OLED) compensates a threshold voltage of the driving switch therein by controlling the connection relationship between a first capacitor and a second capacitor therein. As such, the compensation time of the pixel circuit may be different from the data writing time of the same. Also, the capacitance to be written with the data may be less than that in the conventional technique so that the time needed for the data writing is then reduced and the pixel circuit in the present invention can be used in a display device with a high refresh rate.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: September 26, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Yung-Ming Lin, Chia-Yuan Yeh
  • Patent number: 9772756
    Abstract: A display driver configured to drive a display panel to display an image is provided. The display driver includes an interpolation operation unit and a gamma circuit. The interpolation operation unit is configured to receive two gamma reference curves, and perform an interpolation operation on the two gamma reference curves to generate a plurality of gamma curves. The gamma circuit is configured to select one of the generated gamma curves based on a user selection signal, and drive the display panel to display the image based on the selected gamma curve, so as to adjust a color temperature of the image based on the user selection signal. Color temperatures of the generated gamma curves are distinct, and the generated gamma curves have the same gamma value. Furthermore, a method for adjusting a color temperature of an image is also provided.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: September 26, 2017
    Assignee: Novatek Microelectronics Corp.
    Inventors: Kuei-Chung Chang, Wan-Yu Kuo, Tzu-Chu Yin, Chun-Ta Wu, I-Te Liu
  • Patent number: 9767724
    Abstract: A display panel includes a plurality of pixels and a plurality of power lines. The plurality of pixels are disposed in a matrix and include respective light-emitting devices and respective pixel circuits. The pixel circuits are disposed at unequal intervals in a column direction. The light-emitting devices are provided to allow light-emitting regions of the respective light-emitting devices to have an equal interval in the column direction. The plurality of power lines are extended in a row direction and each supply a current flowing into the light-emitting device. Each one of the plurality of power lines is disposed for a plurality of pixel rows. A spacing between the pixel circuits in the column direction is relatively large at a portion facing one of the power lines. A spacing between the pixel circuits in the column direction is relatively small at a portion facing wiring other than the power lines.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: September 19, 2017
    Assignee: JOLED Inc.
    Inventor: Tetsuro Yamamoto