Patents Examined by Maheen I Javed
  • Patent number: 10635208
    Abstract: A display panel is provided having a built-in touchscreen and a touch display device including the same. The display panel has a touch electrode structure allowing parasitic capacitance to be dispersed to a greater number of gate lines, which form parasitic capacitance together with touch electrodes, without concentrically relying on specific gate lines. Differences in load between gate lines are reduced to improve image quality.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: April 28, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: TaeKeun Lee, SooYoung Choi, In Kang
  • Patent number: 10599266
    Abstract: An inspection device for a touch panel inspects the touch panel which is provided in a display unit. The inspection device is equipped with an operation position display control unit configured to display on the display unit an operation position that is touched by a user, a detection unit configured to detect a detection position depending on a touch operation made by the user with respect to the touch panel, and a positional relationship display control unit configured to display on the display unit positional relationship information indicating a positional relationship between the operation position and the detection position.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: March 24, 2020
    Assignee: FANUC CORPORATION
    Inventors: Tatsuhiro Uchiyama, Junpei Maruyama, Akimasa Matsuo
  • Patent number: 10593278
    Abstract: A display device includes a data driver, a multiplexer, and a multiplexer controller. The data driver outputs a data voltage through output buffers. The multiplexer distributes each of the data voltages output by the output buffers to data lines in a time division manner in response to first to control signals. The multiplexer controller sequentially outputs control signals in a time division manner. Each control signal transitions to a gate ON voltage during a prior horizontal period and maintains the gate ON voltage for an intended horizontal period.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: March 17, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Jongbeom Lee, Beumsik Cho, Juyun Lee
  • Patent number: 10573240
    Abstract: A display device includes a switching circuit; a sub-pixel having a driving transistor and an organic light emitting diode (OLED) with an anode connected to the driving transistor; a driving voltage supply line to supply a driving voltage to the OLED through the driving transistor; a base voltage supply line connected to a cathode of the OLED through the switching circuit; a ground line to supply a ground voltage to the switching circuit; a first capacitor between the driving voltage supply line and the ground line; and a second capacitor between the base voltage supply line and the ground line. The switching circuit selectively supplies one of a first level voltage and a second level voltage as the base voltage, and the second level voltage is higher than the first level voltage at the ground voltage.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: February 25, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: EungKyu Kim, YongKyu Park, Seokyu Jang
  • Patent number: 10546552
    Abstract: The present disclosure provides a data driving circuit and a driving method thereof, a data driving system and a display device. In an embodiment of a data driving circuit, each digital to analog conversion unit is only used for driving sub-pixels of one color, and by controlling on-off of the switch unit, one data line interface unit is enabled to be connected to different digital to analog conversion units when driving sub-pixels of different colors. In this way, a reference voltage can be provided to the digital to analog conversion unit for driving different color display by a single physical Gamma circuit, without having to use a digital Gamma circuit. Therefore, gray scale loss caused by adjustment using the digital Gamma circuit can be avoided fundamentally.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: January 28, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Hongjun Xie
  • Patent number: 10540005
    Abstract: A mobile terminal and a control method thereof are disclosed. The mobile terminal comprises a frame for mounting a portable device thereon, and the portable device mounted on the frame, the portable device comprising: a display unit for playing content; a sensing unit for sensing a direction change of the mobile terminal; a camera for photographing an object of a user; and a control unit, wherein the display unit is disposed so as to be directed toward the eyes of the user wearing the mobile terminal, and the control unit controls the display unit such that the display unit displays, on a partial region, a notification for a sub-menu corresponding to the changed direction of the mobile terminal when the direction of the mobile terminal is changed by a first angle or more during the playing of the content.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: January 21, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Sunghye Yoon, Sooyon Chung, Sujin Kim
  • Patent number: 10514808
    Abstract: The described device is used for communicating with a sensor, especially in the form of a touch-sensitive input and/or output device, e.g. a touch screen, via a control unit that can be controlled using a remote controller. A functional block that performs signaling to communicate with the control unit is provided in a receiver component which is or can be connected to a transmitter component via a communication link.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: December 24, 2019
    Assignee: Inova Semiconductors GmbH
    Inventor: Michael Riedel
  • Patent number: 10504429
    Abstract: An electroluminescent display and a method of driving the same are disclosed. The electroluminescent display includes a driving transistor configured to generate a driving current depending on a gate-source voltage, a storage capacitor configured to store a data voltage and provide the stored data voltage to a gate electrode of the driving transistor, a first switching transistor configured to control a gate potential of the driving transistor, a second switching transistor configured to control a source potential of the driving transistor, a light emitting diode configured to emit light in response to the driving current generated from the driving transistor, and a third switching transistor configured to electrically float a source electrode of the driving transistor and an anode electrode of the light emitting diode when one of the first and second switching transistors is turned off.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: December 10, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Eunji Park, Bumsik Kim, Sungman Han, Kihyung Lee
  • Patent number: 10497298
    Abstract: A display control method includes splitting an image signal into a plurality of input signal sets, generating a first color reformed data, a second color reformed data, a third color reformed data and a fourth color reformed data according to each input signal set, outputting the first color reformed data, the second color reformed data and the third color reformed data when a plurality of pixels corresponding to one input signal set is located at an odd row, and outputting the second color reformed data, the third color reformed data and the fourth color reformed data when the plurality of pixels corresponding to one input signal set is located at an even row. Each input signal set includes a plurality of input signals that correspond to a plurality of adjacent pixels.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: December 3, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Ya-Ting Chen, Hui-Feng Lin, Sheng-Wen Cheng
  • Patent number: 10446076
    Abstract: A display device related to one embodiment of the present invention includes a plurality of pixel circuits each connected to a scanning signal line, initialization control signal line, light emitting control signal line and video signal line, wherein each of the plurality of pixel circuits includes a first transistor connected to the scanning signal line and the video signal line, a second transistor connected to a first node and the first transistor, a third transistor connected to the first node and a scanning signal line, a fourth transistor connected to the second transistor and the light emitting control signal line, and a fifth transistor connected to the second transistor, a power supply voltage line, and the light emitting control signal line.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: October 15, 2019
    Assignee: Japan Display Inc.
    Inventor: Ilin Wu
  • Patent number: 10438543
    Abstract: According to one embodiment, a liquid crystal display apparatus includes an image sensor configured to output an image signal when the image sensor is driven in a first mode and a second mode, and a display device configured to display an image on a display panel based on the image signal. The image sensor is configured to output an image signal every first exposure time when the image sensor is driven in the first mode, and to output an image signal every second exposure time when the image sensor is driven in the second mode. The display device is configured to display an image in accordance with progressive drive when the image sensor is driven in the first mode, and to display an image in accordance with interlace drive when the image sensor is driven in the second mode.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: October 8, 2019
    Assignee: Japan Display Inc.
    Inventor: Kazunari Tomizawa
  • Patent number: 10410581
    Abstract: A display device related to one embodiment of the present invention includes a plurality of pixel circuits each connected to a scanning signal line, initialization control signal line, light emitting control signal line and video signal line, wherein each of the plurality of pixel circuits includes a first transistor connected to the scanning signal line and the video signal line, a second transistor connected to a first node and the first transistor, a third transistor connected to the first node and a scanning signal line, a fourth transistor connected to the second transistor and the light emitting control signal line, and a fifth transistor connected to the second transistor, a power supply voltage line, and the light emitting control signal line.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: September 10, 2019
    Assignee: Japan Display Inc.
    Inventor: Ilin Wu
  • Patent number: 10403200
    Abstract: In accordance with various embodiments of the disclosed subject matter, a transparent display panel and a related display device are provided. In some embodiments, a transparent display panel is provided, the transparent display panel comprises: a first region and a second region, wherein the first region comprises a plurality of first display units, the second region comprises a plurality of second display units, a transmission rate of the one of the plurality of first display units is higher than a transmission rate of the one of the plurality of second display units, and a luminance rate of the one of the plurality of first display units is lower than a luminance rate of the one of the plurality of second display units.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: September 3, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaowei Xu, Libin Liu
  • Patent number: 10394366
    Abstract: A terminal device is provided that makes it possible to improve operability when a plurality of image data items are associated with a single character data item and displayed. This terminal device is provided with: a first display unit that displays main information on an upper layer, and displays attachment information that is associated with the main information on a lower layer underlying the main information; a first input unit that detects an operation that is input into a front surface side of the first display unit; a second input unit that is located on a rear surface side of the first display unit, and detects an input operation; and a control unit that, when the second input unit detects the operation, processes the attachment information that is displayed on the first display unit in accordance with the operation detected by the second input unit.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: August 27, 2019
    Assignee: NEC CORPORATION
    Inventor: Eiji Chiashi
  • Patent number: 10394392
    Abstract: In certain embodiments, a method includes determining a position of an input within a touch-sensitive area of a touch sensor. The touch sensor includes a first number of electrodes having a first orientation and a second number of electrodes having a second orientation. The second orientation is different from the first orientation. The method also includes selecting a first set of the first number of electrodes and a first set of the second number of electrodes such that the determined position of the input is within an overlap of the first set of the first number of electrodes with the first set of the second number of electrodes. An area of the overlap is smaller than the touch-sensitive area.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: August 27, 2019
    Assignee: Atmel Corporation
    Inventor: Thomas Bell
  • Patent number: 10388216
    Abstract: A display device includes an image controller that analyzes first image data to determine whether a same image is displayed for no less than a predetermined threshold time. The image controller sets a low grayscale region having grayscale values of no more than a predetermined threshold low grayscale value when the same image is displayed for no less than a threshold time. The image controller then receives second image data and transmits a control signal to allow a transistor hysteresis reset signal to be transmitted to pixels of the display in the low grayscale region. A data driver transmits the transistor hysteresis reset signal to the pixels in the low grayscale region based on the control signal.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: August 20, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Kook Park, Ju Gon Seok, Min Tak Lee, Sang Min Lim
  • Patent number: 10379677
    Abstract: An operation method of an optical touch device includes: emitting, by a light emitting unit, a light beam to illuminate an object; capturing, by an image sensing device, an image of the object reflecting the light beam; selecting all pixels in the image having a brightness greater than or equal to a brightness threshold; sorting the selected pixels along a first coordinate axis of the image, a second coordinate axis of the image or based a pixel brightness; selecting the top first predetermined ratio of pixels from the sorted pixels as an object image of the object; and calculating a gravity center of the object image according to positions of the top first predetermined ratio of pixels or according to the positions of the top first predetermined ratio of pixels with a weight of pixel brightness. An optical touch device is also provided.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: August 13, 2019
    Assignee: PixArt Imaging Inc.
    Inventors: Yu-Hao Huang, Ming-Tsan Kao, En-Feng Hsu, Yi-Yuan Chen, Meng-Huan Hsieh
  • Patent number: 10372248
    Abstract: The semiconductor device is intended for connection with an in-cell type display touch panel having a plurality of common electrodes, a reference voltage for display is applied to the common electrodes in a display drive period, and the common electrodes serve as sensor electrodes in a touch detection period. The semiconductor device includes a DC level shift circuit operable to shift the DC level of a toggle signal output by a toggle drive circuit to the reference voltage. The semiconductor device supplies the reference voltage to the common electrodes of the display touch panel in the display drive period, and performs a guarding action in which at least a part of the plurality of common electrodes is supplied with a toggle signal shifted in DC level in the touch detection period.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: August 6, 2019
    Assignee: SYNAPTICS INCORPORATED
    Inventors: Kazuya Endo, Shinobu Nohtomi, Nobukazu Tanaka, Tomohiro Hirakawa, Hiroshi Takeyama, Takayuki Noto, Petr Shepelev
  • Patent number: 10354608
    Abstract: The present invention relates to a driving circuit of a display panel. A plurality of driving units produce a reference driving voltage according to a gamma voltage of a gamma circuit, respectively. A plurality of digital-to-analog converting circuits receive the reference driving voltages output by the plurality of driving units, and select one of the plurality of reference driving voltage as a data driving voltage according to pixel data, respectively. The plurality of digital-to-analog converting circuits transmit the plurality of data driving voltages to the display panel for displaying images. A voltage boost circuit is used for producing a first supply voltage and providing the first supply voltage to the plurality of digital-to-analog converting circuits. At least a voltage boost unit is used for producing a second supply voltage and providing the second supply voltage to the plurality of driving units.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: July 16, 2019
    Assignee: Sitronix Technology Corp.
    Inventors: Min-Nan Liao, Chih-Ping Su
  • Patent number: 10331219
    Abstract: An aspect provides a method, including: operating one or more sensors to detect gesture input proximate to a surface of an input device of an information handling device, wherein the input device is configured to receive one or more input types in addition to gesture input; determining, using a processor, if the gesture input detected matches a predetermined gesture; and executing at least one response action associated with the predetermined gesture. Other aspects are described and claimed.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: June 25, 2019
    Assignee: Lenovo (Singaore) Pte. Ltd.
    Inventors: Michaela Rose Case, Aaron Michael Stewart, Wesley Abram Luttrell, Mamoru Okada, Xin Feng