Electroluminescent Device Patents (Class 315/169.3)
  • Patent number: 10811435
    Abstract: To provide a semiconductor device including a planar transistor having an oxide semiconductor and a capacitor. In a semiconductor device, a transistor includes an oxide semiconductor film, a gate insulating film over the oxide semiconductor film, a gate electrode over the gate insulating film, a second insulating film over the gate electrode, a third insulating film over the second insulating film, and a source and a drain electrodes over the third insulating film; the source and the drain electrodes are electrically connected to the oxide semiconductor film; a capacitor includes a first and a second conductive films and the second insulating film; the first conductive film and the gate electrode are provided over the same surface; the second conductive film and the source and the drain electrodes are provided over the same surface; and the second insulating film is provided between the first and the second conductive films.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: October 20, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kenichi Okazaki, Masahiro Katayama, Masataka Nakada
  • Patent number: 10803788
    Abstract: A driving circuit includes a first driving switch, a second driving switch and a current regulating unit. The first driving switch is electrically connected to a first power source and a first light emitting element. When the first driving switch is turned on, the first driving switch is configured to receive a first current. The second driving switch is electrically connected to a second power source and a second light emitting element. When the second driving switch is turned on, the second driving switch is configured to receive a second current. The current regulating unit is electrically connected to a negative terminal of the second light emitting element and a positive terminal of the first light emitting element. When the current regulating unit is disabled, the second current sequentially flows through the second light emitting element and the first light emitting element.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: October 13, 2020
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Ming-Hsien Lee, Yi-Cheng Lin, Chuang-Cheng Yang, Kai-Wei Hong, Chun-Feng Lin
  • Patent number: 10803813
    Abstract: An apparatus for driving an electro-optic display may comprise a first switch designed to supply a voltage to the electro-optic display during a first driving phase, a second switch designed to control the voltage during a second driving phase and a resistor coupled to the first and second switches for controlling the rate of decay of the voltage during the second driving phase.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: October 13, 2020
    Assignee: E Ink Corporation
    Inventors: Kenneth R. Crounse, Teck Ping Sim, Karl Raymond Amundson, Zdzislaw Jan Szymborski
  • Patent number: 10796637
    Abstract: A display device includes: a pixel array unit with pixel circuits disposed in matrix form, the pixel circuit including a driving transistor, an electro-optic element, a storage capacitor, and a sampling transistor, with the electro-optic element emitting light by generating a driving current based on information stored in the storage capacitor at the driving transistor to be applied to the electro-optic element; and a control unit, of which the output stage includes a buffer transistor, to output a pulse signal for driving the pixel array unit from the buffer transistor; wherein the pixel array unit and the control unit are formed with long laser beam irradiation to be scanned in the vertical direction or horizontal direction; and wherein with the control unit, the size of the buffer transistor is equal to or greater than the pixel pitch in the scanning direction of the laser beam.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: October 6, 2020
    Assignee: Sony Corporation
    Inventors: Junichi Yamashita, Katsuhide Uchino
  • Patent number: 10797058
    Abstract: The present disclosure provides example embodiments relating to conductive features, and methods of forming the conductive features, that have differing dimensions. In an embodiment, a structure includes a substrate, a dielectric layer over the substrate, and first and second conductive features through the dielectric layer to first and second source/drain regions, respectively, on the substrate. The first conductive feature has a first length along a longitudinal axis of the first conductive feature and a first width perpendicular to the first length. The second conductive feature has a second length along a longitudinal axis of the second conductive feature and a second width perpendicular to the second length. The longitudinal axis of the first conductive feature is aligned with the longitudinal axis of the second conductive feature. The first width is greater than the second width, and the first length is less than the second length.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: October 6, 2020
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventor: Yu-Lien Huang
  • Patent number: 10790312
    Abstract: A display panel and a display device are provided. The display panel includes a base substrate, the base substrate includes a display region and a non-display region, the display region includes a main display region and a peripheral display region, and the peripheral display region includes an irregular display region; the non-display region includes a first region and a second region, the first region is adjacent to the irregular display region, and the second region is adjacent to other regions of the peripheral display region than the irregular display region; the display region includes at least one signal line, the non-display region includes at least one functional circuit and at least one wire, and the at least one functional circuit is coupled to the at least one signal line via the at least one wire.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: September 29, 2020
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yun Qiao, Zhen Wang, Lele Cong, Zhengkui Wang, Jianjun Zhang, Han Zhang, Wenwen Qin, Fei Huang, Xiaozhou Zhan, Peng Liu, Jian Sun
  • Patent number: 10789880
    Abstract: A pixel arrangement structure of an organic light emitting diode (OLED) display is provided. The pixel arrangement structure includes: a first pixel having a center coinciding with a center of a virtual square; a second pixel separated from the first pixel and having a center at a first vertex of the virtual square; and a third pixel separated from the first pixel and the second pixel, and having a center at a second vertex neighboring the first vertex of the virtual square. The first pixel, the second pixel, and the third pixel have polygonal shapes.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: September 29, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sang-Shin Lee
  • Patent number: 10777140
    Abstract: The organic light emitting display device according to the present disclosure comprises an input unit configured to receive image data input at a variable frame frequency, a sensing control unit configured to generate a sensing control signal for sensing pixels to which the image data is to be applied, in a vertical blank period varying according to the variable frame frequency and a TFT compensating unit configured to sense driving characteristics of a driving element included in the pixels according to the sensing control signal to output a first sensing result. Among one variable frame period, a vertical active period for applying the image data to the pixels is fixed and the vertical blank period in which no image data is applied to the pixels is varied according to the variable frame frequency.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: September 15, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Hyunwook Kim, Hyuckjun Kim, Kyungrok Kim, Sanghoon Lee
  • Patent number: 10777766
    Abstract: An organic light-emitting diode (OLED) display device and a method of fabricating the same can reduce resistance of a cathode by forming an auxiliary electrode. Also, such OLED display device and method can prevent damage on a pad electrode due to an etchant during patterning of an anode by applying a protective structure to the pad electrode of a pad area and by including the pad electrode exposed from a plurality of pad electrode layers.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: September 15, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: JongHyeok Im, SeJune Kim, JoonSuk Lee, SoJung Lee, JaeSung Lee
  • Patent number: 10769999
    Abstract: A display device includes first and second initialization voltage sources and first and second pixel circuits. The first initialization voltage source provides a first initialization voltage. The second initialization voltage source provides a second initialization voltage less than the first initialization voltage. The first pixel circuit includes a first organic light emitting diode. The second pixel circuit includes a second organic light emitting diode with an organic material having a band gap different from a band gap of an organic material in the first organic light emitting diode. The first pixel circuit is coupled to the first initialization voltage source and the second initialization voltage source. The second pixel circuit is coupled to a single initialization voltage source.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: September 8, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyung Jun Park, Yang Wan Kim, Byung Sun Kim, Su Jin Lee, Jae Yong Lee
  • Patent number: 10762831
    Abstract: An electroluminescent display includes a flexible display material shaped to cover a designated portion of an electronic gaming system. In various embodiments, the flexible display material includes an appliable backing configured to be removably applied to the designated portion of the electronic gaming system, a graphics layer including a plurality of graphics regions, each graphics region of the plurality of graphics regions having an associated shape, and a plurality of electroluminescent (EL) display elements disposed between the appliable backing and the graphics layer, each EL display element of the plurality of EL display elements shaped to correspond to a shape of one of the plurality of graphics regions, the plurality of EL display elements configured to back-illuminate the plurality of graphics regions.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: September 1, 2020
    Assignee: ARISTOCRAT TECHNOLOGIES AUSTRALIA PTY LIMITED
    Inventors: Eric P. Winston, Cash John Imutan, Lingjiang Cheng
  • Patent number: 10763309
    Abstract: A display device can include a first subpixel and a second subpixel disposed on a substrate; a first electrode disposed in each of the first subpixel and the second subpixel; a first light emitting layer disposed on the first electrode, the first light emitting layer being configured to emit light of a first color; a second electrode disposed on the first light emitting layer; a second light emitting layer disposed on the second electrode, the second light emitting layer being configured to emit light of a second color; and a third electrode disposed on the second light emitting layer, in which the first light emitting layer and the second electrode are both included in the first subpixel, and the first light emitting layer and the second electrode are both absent from the second subpixel.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: September 1, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Seogshin Kang
  • Patent number: 10748482
    Abstract: A display device includes: an organic light emitting diode (OLED); a pixel circuit configured to control an amount of a current flowing from a first power voltage to the OLED; and a gate line and a data line that are connected to the pixel circuit, the pixel circuit including: an auxiliary transistor including a gate electrode electrically connected to the data line and a first electrode and a second electrodes connected to the gate line, the first electrode and the second electrode of the auxiliary transistor being electrically connected to each other.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: August 18, 2020
    Assignee: Samsung Display Co., Ltd
    Inventors: Jong Won Park, Seung-Kyu Lee, Hyun Woong Kim
  • Patent number: 10748487
    Abstract: An electro-optical device includes a scan line, a data line, a pixel circuit provided at an intersection of the scan line and the data line, a first high potential line, a first low potential line, a second high potential line, and a second low potential line. The pixel circuit includes a light emitting device, a memory circuit disposed between the first high potential line and the first low potential line, a first transistor of N-type including a gate electrically connected to the memory circuit, and a second transistor disposed between the memory circuit and the data line. The light emitting device and the first transistor are disposed in series between the second high potential line and the second low potential line.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: August 18, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Mitsutoshi Miyasaka, Yoichi Momose
  • Patent number: 10748485
    Abstract: A pixel circuit, a display panel, a display device and a driving method. The pixel circuit includes: a storage capacitor, including a first terminal connected with a first node, and a second terminal connected with a reference voltage line to receive a reference voltage; an organic light-emitting diode; a driving transistor, configured to control light emission of the organic light-emitting diode according to a voltage of the first node; a first reset circuit, configured to supply an initial voltage to the first node in response to a reset signal; a scanning circuit, configured to supply a data signal to a third node in response to a scanning signal; a compensating circuit, configured to supply a compensating voltage to the first node responsive to the scanning signal; and a light emission control circuit, configured to control the organic light-emitting diode to emit light responsive to a light emission control signal.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: August 18, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Kai Zhang, Yi Zhang
  • Patent number: 10748486
    Abstract: A display apparatus according to the present disclosure includes: a pixel array unit, pixels being arranged in the pixel unit, the pixels each including a driving transistor that includes a plurality of gate electrodes and drives a light emitting unit in response to a video signal applied to one gate electrode of the plurality of gate electrodes; and a control unit that controls gate voltage of a different gate electrode of the driving transistor. Further, an electronic apparatus according to the present disclosure includes the display apparatus having the above-mentioned configuration.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 18, 2020
    Assignee: Sony Corporation
    Inventor: Shinichi Teraguchi
  • Patent number: 10734583
    Abstract: The present disclosure discloses an electroluminescent substrate plate, a method of manufacturing the same, and a display device. The method includes printing an ink comprising a light-emitting layer material and a solvent capable of dissolving the light-emitting layer material in a display region of a substrate; and printing a solvent in a region other than the display region. Thus, the method can easily obtain an electroluminescent substrate plate, and the manufactured electroluminescent substrate plate can satisfy the dry atmosphere consistency of the display region and the peripheral region during the film formation by inkjet printing, can significantly improve the film thickness uniformity of the display region, and at the same time is beneficial to the design requirements of a large size and a narrow frame.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: August 4, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Ying Cui
  • Patent number: 10734471
    Abstract: The present disclosure discloses an organic light emitting display device having a substrate including an active area configured to display an image and an inactive area configured to surround the active area; a power supply line in the inactive area; a first planarization layer on a layer where the power supply line is disposed on; a first metal layer on the first planarization layer and in contact with the power supply line; a second planarization layer configured to planarize an upper portion of the first metal layer; and a second metal layer, on the second planarization layer, and in contact with the first metal layer and a cathode of an organic light emitting diode, so that an improved arrangement of signals lines in the inactive area where conductive lines are efficiently arranged in a limited space at an edge portion of the substrate in order to realize a narrow bezel configuration and have a signal line structure capable of supplying stable power to various components.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: August 4, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: JongChan Park, JinHwan Kim
  • Patent number: 10734588
    Abstract: The present invention provides a compound, and an organic electronic element and an electronic device using the same, the compound capable of improving light-emitting efficiency, lowering drive voltage, and increasing lifespan of an element.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: August 4, 2020
    Assignee: Duk San Neolux Co., Ltd
    Inventors: Jonggwang Park, Ka Young Eom, Hyoung Keun Park, Hyemin Cho, Dae Won Lee, Jung Hwan Park, Yeon Hee Choi, Seung Won Yeo
  • Patent number: 10726771
    Abstract: A pixel circuit, a driving method and a display device having the pixel circuit are disclosed, wherein the pixel circuit comprises a compensation unit, a driving unit, a light emitting unit, a capacitor, an initialization unit and an external power supply and the driving method comprises a first initialization stage, a second initialization stage, a data writing stage and a light emitting stage.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 28, 2020
    Assignee: EverDisplay Optronics (Shanghai) Limited
    Inventor: Xingyu Zhou
  • Patent number: 10720101
    Abstract: A display device includes pixels, an auxiliary pixel, a controller, and an emission driver. The pixels are coupled to data lines and emission control lines. The auxiliary pixel is coupled to an auxiliary data line and auxiliary emission control lines. The controller is configured to measure an auxiliary current supplied from the auxiliary pixel through an auxiliary line, and to control a width of an emission start signal based on an accumulation amount of the auxiliary current. The emission driver is configured to, based on the emission start signal, supply emission control signals to the pixels and the auxiliary pixel through the emission control lines and the auxiliary emission control lines.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: July 21, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Moo Choi, Jin Woo Park, Dong Sun Lee
  • Patent number: 10714031
    Abstract: A display device comprising: a display portion that is provided on a thin-film transistor (TFT) substrate and that comprises pixel capacitors and pixel transistors included in a plurality of pixels arranged in a matrix in a first direction and a second direction intersecting the first direction, a plurality of scan lines each coupled to some of the pixels arranged in the first direction, and a plurality of video signal lines each coupled to some of the pixels arranged in the second direction; and a driver that is provided on the TFT substrate and that is configured to supply video signals to the video signal lines and to control the pixel transistors to be on and off through the scan lines.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: July 14, 2020
    Assignee: Japan Display Inc.
    Inventor: Hirotaka Hayashi
  • Patent number: 10714002
    Abstract: A pixel circuit and a driving method thereof, a display panel and a display device are disclosed. The pixel circuit includes an input control sub-circuit, a switch control sub-circuit, a latch sub-circuit and a light-emitting sub-circuit. The input control sub-circuit writes a data signal into a first node under control of the gate signal terminal. The switch control sub-circuit conducts a first terminal or a second terminal of the latch sub-circuit with the first node under control of a switch signal control terminal. The latch sub-circuit outputs a high-level signal to the first node, when the first node is conductive with the first terminal and outputs a low-level signal to the first node, when the first node is conductive with the second terminal. The light-emitting sub-circuit emits light when the first node is supplied with the high-level signal.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: July 14, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengcheng Lu, Xiaochuan Chen, Minghua Xuan, Shengji Yang, Lei Wang, Li Xiao, Dongni Liu, Jie Fu, Han Yue, Jian Gao, Changfeng Li
  • Patent number: 10708999
    Abstract: A computer implemented method (500) of generating a virtual representation (110) of a linear lighting device (120) is disclosed.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: July 7, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Tatiana Aleksandrovna Lashina, Bartel Marinus Van De Sluis, Dzmitry Viktorovich Aliakseyeu, Philips Steven Newton, Tim Dekker
  • Patent number: 10707287
    Abstract: An organic light emitting display (OLED) device includes an organic light emitting diode having an anode and a cathode. The organic light emitting diode is configured to receive a reference voltage. A control transistor includes a first control electrode and a first semiconductor active layer. The control transistor is configured to receive a control signal. A driving transistor includes a second control electrode that is electrically connected to the control transistor, an input electrode that is configured to receive a power voltage, an output electrode that is electrically connected to the anode of the organic light emitting diode, and a second semiconductor active layer that includes a different material from that of the first semiconductor active layer. A shielding electrode is disposed on the second semiconductor active layer, overlapping the driving transistor, and configured to receive the power voltage.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: July 7, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dongsoo Kim, Ji-Hyun Ka
  • Patent number: 10685627
    Abstract: A technique for improving the spatial and/or temporal uniformity of a light-emitting display by providing a faster calibration of reference current sources and reducing the noise effect by improving the dynamic range, despite instability and non-uniformity of the transistor devices. A calibration circuit for a display panel having an active area having a plurality of light emitting devices arranged on a substrate, and a peripheral area of the display panel separate from the active area is provided. The calibration circuit includes a first row of calibration current source or sink circuits and a second row of calibration current source or sink circuits. A first calibration control line is configured to cause the first row of calibration current source or sink circuits to calibrate the display panel with a bias current while the second row of calibration current source or sink circuits is being calibrated by a reference current.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: June 16, 2020
    Assignee: Ignis Innovation Inc.
    Inventors: Gholamreza Chaji, Arokia Nathan
  • Patent number: 10686061
    Abstract: A semiconductor device includes a substrate having an insulating surface; a light-transmitting first electrode provided over the substrate; a light-transmitting second electrode provided over the substrate; a light-transmitting semiconductor layer provided so as to be electrically connected to the first electrode and the second electrode; a first wiring electrically connected to the first electrode; an insulating layer provided so as to cover at least the semiconductor layer; a light-transmitting third electrode provided over the insulating layer in a region overlapping with the semiconductor layer; and a second wiring electrically connected to the third electrode.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: June 16, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 10657890
    Abstract: A pixel driving circuit is provided, comprising: a current control circuit configured to provide a constant current signal and an activation signal, a current switching circuit configured to control the transmission of the constant current signal to a light-emitting device under the control of the activation signal, and a grounding control circuit configured to control the current control circuit to provide the constant current signal and the activation signal. An input terminal of the current control circuit is connected to a data line and a power line, respectively. A control terminal of the current switching circuit is connected to an output terminal of the current control circuit, an input terminal of the current switching circuit is connected to the input terminal of the current control circuit, and an output terminal of the current switching circuit s connected to an input terminal of the light-emitting device.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: May 19, 2020
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Song Liu, Hengyu Yan, Boxiao Lan, Jinhui Cheng, Zhiming Meng, Chunbing Zhang, Rui Guo, Hanzhang Niu, Jianzi He
  • Patent number: 10657900
    Abstract: A pixel driving circuit, a driving method thereof and an OLED display panel are provided. A plurality of scanning lines and a plurality of data lines of the pixel driving circuit intersect to define a plurality of pixel units, the plurality of pixel units in each row are connected to a corresponding scanning line and a corresponding power line, the plurality of pixel units in each column are connected to a corresponding data line, in a scanning period, scanning signal is input to an end of the scanning line to drive the plurality of pixel units along a first direction, power driving signal is input to an end of the power line opposite to the end of the scanning line to which the scanning signal is input to drive the plurality of pixel units along a second direction, the first direction and the second direction are opposite.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: May 19, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yufeng Jin, Shen-sian Syu, Ming-jong Jou
  • Patent number: 10650753
    Abstract: A pixel circuit, a method for driving the same, a display panel, and a display device are provided. The pixel circuit includes: a drive controlling sub-circuit, a data writing sub-circuit, a light-emission controlling sub-circuit, a first resetting sub-circuit, a second resetting sub-circuit, a charging sub-circuit, a capacitor sub-circuit, and a light-emitting element; and the respective sub-circuits cooperate in operation so that charges in the drive controlling sub-circuit in the pixel circuit can be reset, and driving current of the drive controlling sub-circuit to drive the light-emitting element to emit light can be made dependent upon the voltage of a data signal, and independent of threshold voltage of the drive controlling sub-circuit.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: May 12, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chengchung Yang, Kuanjun Peng, Xueling Gao
  • Patent number: 10643539
    Abstract: A compensation pixel circuit, a display panel, a display apparatus, a regional compensation method and a driving method are provided. The compensation pixel circuit includes a compensation driving circuit and a signal acquiring circuit connected with the compensation driving circuit. The compensation driving circuit includes a driving transistor and an organic light-emitting diode. The compensation driving circuit is configured to receive a light-emitting data signal, compensate a threshold voltage of the driving transistor, and drive the organic light-emitting diode to illuminate in accordance with the light-emitting data signal. The signal acquiring circuit is configured to acquire a gate voltage of the driving transistor.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: May 5, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shengji Yang, Xue Dong, Jing Lv, Xiaochuan Chen, Dongni Liu, Lei Wang, Li Xiao, Han Yue, Pengcheng Lu, Jie Fu, Yingming Liu, Can Zhang
  • Patent number: 10636846
    Abstract: A display device includes a display panel that includes a display area and a non-display area which is adjacent to the display area. The display panel includes: a plurality of data lines in the display area; a data connection line provided in plurality through which data signals are transmitted to the display area from outside the display panel, the data connection lines electrically connected to the data lines in the display area; dummy semiconductor patterns respectively disposed between the substrate and the data connection lines; and a first insulating layer disposed between the dummy semiconductor patterns and the data connection lines. Each of the dummy semiconductor patterns include semiconductor pattern segments arranged between the substrate and a same data connection line among the data connection lines, and the semiconductor pattern segments are arranged separated from each other along the same data connection line in a top plan view.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: April 28, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyong Tae Park, Jung Tae Kim, Sung Ho Cho
  • Patent number: 10636356
    Abstract: Electronic devices may include displays having organic light-emitting diode pixels, display driver circuitry, and gate driver circuitry. To reduce the amount of space occupied in the inactive area of a display by the gate driver circuitry, one or more of the shift registers in the gate driver circuitry may include register circuits that are shared by multiple rows of pixels. Different drivers may use different clock frequencies to ensure synchronous operation of the display even when some register circuits share pixel rows. For increased flexibility in the arrangement of the register circuits in the shift registers, one or more of the shift registers may be split across the active area of the display. In some cases, one of the emission drivers may be omitted from the gate driver circuitry and a single emission driver may provide multiple emission control signals for the pixels.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: April 28, 2020
    Assignee: Apple Inc.
    Inventors: Chuang Qian, Tsung-Ting Tsai, Shyuan Yang, Cheng-Chih Hsieh, Abbas Jamshidi Roudbari, Ting-Kuo Chang, Shih-Chang Chang
  • Patent number: 10629846
    Abstract: A display apparatus includes a flexible substrate and a first insulation layer disposed on the flexible substrate. The flexible substrate includes a bending area. The first insulation layer includes a first unevenness disposed over the bending area. The first unevenness includes two or more steps in at least a portion of the first unevenness.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: April 21, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Hyekyung Park
  • Patent number: 10629118
    Abstract: An organic light emitting display device includes a display panel and a deterioration compensation unit. The display panel comprises a plurality of unit pixels each comprising at least three sub-pixels corresponding to different colors and an organic light emitting diode. The deterioration compensation unit generates deterioration estimation data of each of the sub-pixels based on cumulative data of each of the sub-pixels, generates first and second temperature deterioration data based on display temperature data corresponding to temperature of the organic light emitting display device, calculates an individual compensation gain corresponding to each of the sub-pixels based on the deterioration estimation data and the first and second temperature deterioration data, and corrects input data of each of the sub-pixels based on the individual compensation gain of each of the sub-pixels.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: April 21, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Namseok Choi, Jintaek Choi, Jeisung Lee
  • Patent number: 10614765
    Abstract: A display device includes: first and second pixel regions, wherein the display device displays an effective image in the first and second pixel regions, corresponding to a first mode, and displays an effective image in the second pixel region, corresponding to a second mode; first pixels and first scan lines in the first pixel region; second pixels and second scan lines in the second pixel region; a first scan driver comprising first scan stages configured to drive at least some of the first scan lines; a second scan driver comprising second scan stages configured to drive the second scan lines; and a timing controller configured to supply first and second start signals to the first and second scan drivers, wherein, when the display device is driven in the second mode, a width of the second start signal is set wider than a width of the first start signal.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: April 7, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Hye Kim, Dong Hwi Kim, Jin Jeon
  • Patent number: 10613397
    Abstract: The invention provides an alternative liquid crystal and light emitting display which include at least one Transparent Conductive Oxide layers which comprises a zinc oxide doped with a group III, IV, V, or transition metal dopant, and sputtered from a sputtering target. In a further embodiment, this Transparent Conductive Oxide layer can optionally include a layer of a patternable TCO, such as ITO.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: April 7, 2020
    Assignee: SCI ENGINEERED MATERIALS, INC.
    Inventors: Robert McGinnis, Jing Yang, Tzu-Chieh Lin
  • Patent number: 10607542
    Abstract: A pixel circuit, a pixel, and an AMOLED (Active Matrix Organic Light-Emitting Diode) display device comprising the pixel and a driving method thereof. The pixel circuit comprises a power supply circuit, a basic circuit and a compensation circuit, which are sequentially connected. The power supply circuit is connected to a first power supply to supply power to the basis circuit. The compensation circuit is connected to second and third power supplies, respectively, for providing difference values compensating for a voltage and current of an OLED (Organic Light-Emitting Diode). The pixel comprises an OLED and the pixel circuit. The AMOLED display device comprises the pixel circuit. By compensating for a difference between threshold and power supply voltages of a transistor, the response characteristics of the AMOLED may be improved to generate light of a same brightness, thereby meeting requirements on image uniformity and consistency of an AMOLED.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: March 31, 2020
    Assignees: KUNSHAN NEW FLAT PANEL DISPLAY TECHNOLOGY CENTER CO., LTD., KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.
    Inventors: Hui Zhu, Siming Hu, Xiuqi Huang, Ji Zhou
  • Patent number: 10607543
    Abstract: Methods and systems to dynamically adjust a voltage supply of a display are provided. Systems are provided to receive a digital data input indicative of an amount of luminance to be emitted from the display, to determine a desired supply voltage to supply to the display based on the received digital data, and to adjust an adjustable voltage supply according to the determined desired supply voltage. Furthermore, the methods and systems disclosed herein provide for dynamically separately controlling supply voltages supplied to distinct subsections of the display. Systems and methods are also provided for operating a display device in an idle mode by turning off subsections of the display that would otherwise be shown dark and thereby save energy required to program the subsections with display information.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: March 31, 2020
    Assignee: Ignis Innovation Inc.
    Inventor: Gholamreza Chaji
  • Patent number: 10607545
    Abstract: An OLED driving circuit, an array substrate and a display device are provided. The OLED driving circuit includes a plurality of driving TFTs and a plurality of sense TFTs. Each sense TFT is configured to compensate for a threshold voltage of the respective driving TFT. Each sense TFT corresponds to a respective one of the driving TFTs, a source electrode of each sense TFT is connected to a sense line, and a drain electrode thereof is connected to a drain electrode of the respective driving TFT. The plurality of sense TFTs is divided into a plurality of groups, each group includes at least two sense TFTs which share a same gate electrode and a same source electrode and are connected to a same sense line.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: March 31, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yicheng Lin, Quanhu Li, Cuili Gai, Baoxia Zhang, Longyan Wang, Ling Wang
  • Patent number: 10600353
    Abstract: Disclosed are a method for driving a pixel circuit, a display panel and a display device. The pixel circuit includes: a data write module, a drive transistor, a hold module and a light-emitting element. The method comprises, in a time period for a frame of display: a data writing stage in which a data signal is written by the data write module into a gate electrode of the drive transistor; a light-emitting stage in which a voltage on the gate electrode of the drive transistor is held by the hold module, the drive transistor supplies a drive current to the light-emitting element, and the light-emitting element emits light in response to the drive current; and a cut-off stage in which the drive transistor operates in a full cut-off region.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: March 24, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Kerui Xi, Tingting Cui, Baiquan Lin, Junting Ouyang, Zhonglan Cai
  • Patent number: 10593027
    Abstract: A method for processing at least one peripheral image that when displayed extends beyond the borders of a displayed central image is disclosed. The method includes adapting luminance of the peripheral image to human vision characteristics when the luminance of peripheral images is processed so that the rendered light from the peripheral image in the viewer field of view remains low and close to the light rendered by the central view only. According to a first embodiment, the method includes adapting luminance of the peripheral image to a reference reflectance level by applying a light correction function to the input luminance when such light correction function is obtained by measuring a rendered luminance level of the displayed peripheral image adapted to the reference reflectance level of the surface where is displayed the peripheral image. According to a second embodiment, the luminance is further adapted to real reflectance with respect to reference reflectance.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: March 17, 2020
    Assignee: INTERDIGITAL CE PATENT HOLDINGS
    Inventors: Philippe Guillotel, Laura Turban, Fabrice Urban
  • Patent number: 10593264
    Abstract: The present disclosure relates to a power supply device for a display panel, a manufacturing method, a power supplying method, and a display device. The power supply device may include: a first line surrounding the display panel and electrically connected to sub-pixels of the display panel; at least one first power supply terminal disposed at a first side of the display panel and connected to a first line segment of the first line located at the first side of the display panel; at least one second power supply terminal connected to a second line segment of the first line located at a second side of the display panel to compensate for a voltage drop of the first power supply terminal on the first line. The first side and the second side of the display panel are opposite sides of the display panel.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: March 17, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Xiaowei Wang, Guoqing Zhang, Hongxia Yang, Longfei Yang, Feiwen Tian, Lei Wang, Xuepeng Ji, Yu Fu, Haotian Chen, Meili Guo
  • Patent number: 10586834
    Abstract: A display panel, a method for driving the same and a display device are provided. Each pixel element includes an infrared detector, a light-emitting element and a first control unit, the infrared detector includes a first electrode, an infrared-sensitive layer and a second electrode, and the light-emitting element includes a pixel circuit, a third electrode, a light-emitting function layer and a fourth electrode. The second electrode is electrically connected with the third electrode, the first electrode is connected with the fourth electrode through the first control unit, and the first control unit is configured to connect the first electrode with the fourth electrode in an infrared detection mode, and to disconnect the first electrode from the fourth electrode in a display mode.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: March 10, 2020
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Qianqian Bu, Weipin Hu
  • Patent number: 10573237
    Abstract: The present disclosure provides a pixel including a first transistor, a second transistor, a third transistor, a fourth transistor, a capacitor, and an OLED; the second transistor and the third transistor are turned on in the first period to charge the capacitor with a data current, until the current flowing through the second transistor is 0 and the current flowing through the first transistor is the data current, the capacitor stores a voltage corresponding to the data current; the fourth transistor is turned on in the second period to cause the OLED to emit light, and the voltage stored by the capacitor corresponding to the data current causes the current flowing through the OLED to coincide with the current flowing through the first transistor in the first period. The present disclosure can make the current flowing through the OLED not change with the threshold voltage of the driving transistor.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: February 25, 2020
    Assignee: SHENZHEN CHINA STAR OPROELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Xiaolong Chen
  • Patent number: 10572093
    Abstract: OLED elements and a seal portion covering the OLED elements are provided on an upper side of a base substrate. The seal portion includes a light-transmitting conductive film.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: February 25, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tohru Sonoda, Takashi Ochi, Hisao Ochi, Tohru Senoo, Takeshi Hirase, Akihiro Matsui, Jumpei Takahashi
  • Patent number: 10557947
    Abstract: A detector, includes a plurality of photomultiplier tubes each having an anode configured to generate an anode output signal and a frequency domain detector interface including a plurality of frequency domain coupling circuits. Each of the plurality of frequency domain coupling circuits is configured to receive the anode output signal from one of the plurality of photomultiplier tubes and pickoff one of a high-frequency component or a low-frequency component. Each of the plurality of frequency domain coupling circuits is further configured to generate a pass-through signal comprising a first of the high-frequency component or the low-frequency component.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: February 11, 2020
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Nan Zhang, Matthias J. Schmand
  • Patent number: 10541292
    Abstract: An electroluminescence display device according to an embodiment includes a plurality of sub-pixels. Each of the plurality of sub-pixels includes a Node-A electrically connected to an electrode of a storage capacitor and a gate electrode of a P-type driving transistor, an N-type switching transistor configured to switch an electrical connection between a Node-B electrically connected to a data line and the Node-A, a Node-C configured to supply ELVDD voltage and electrically connected to another electrode of the storage capacitor and a first electrode of the P-type driving transistor, a Node-D configured to supply current to an electroluminescence diode and electrically connected to a second electrode of the P-type driving transistor, and a first transistor configured to switch an electrical connection between the Node-A and the Node-D.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: January 21, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: ByungJun Lim, YoungSun Jang
  • Patent number: 10534213
    Abstract: According to one embodiment, a display device includes a liquid crystal panel including a pair of substrates opposed to each other, a liquid crystal layer between the substrates, and a first electrode portion on at least one of the substrates, a backlight device including an optical member and a second electrode portion opposed to the first electrode portion, and an adhesive member between the liquid crystal panel and the backlight device to fix the backlight device to the liquid crystal panel. The adhesive member includes a first base, adhesive layers on both surfaces of the first base, a second base on the first base via one of the adhesive layers, and an adhesive layer on the second base.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: January 14, 2020
    Assignee: Japan Display Inc.
    Inventors: Yosuke Nakamori, Ken Hirabayashi, Koji Noguchi
  • Patent number: 10534227
    Abstract: An integrated display module and an ultra-slim display device are disclosed. The display device includes a display panel, a light guide plate located below the display panel, and a back cover located below the light guide plate. The light guide plate is directly connected to the display panel using a first bonding material in a top direction and is directly connected to the back cover using a second bonding material in a bottom direction. The display device has a small bezel width and a small thickness.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: January 14, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: YoungMin Kweon, Jaejun Kim, HyunCheol Cho