Patents Examined by Richard Hong
  • Patent number: 10074308
    Abstract: Provided is a method for driving a display device including: a display unit having a sub-pixel having a first light emitting element (organic EL element) and a first driving transistor for supplying a first electric current corresponding to a first gray level signal, and a sub-pixel having a second light emitting element (organic EL element) and a second driving transistor for supplying a second electric current corresponding to a second gray level signal; and a power supply unit configured to apply a power supply voltage to each sub-pixel via an electric current path that is common to the sub-pixel and the sub-pixel. The driving method includes correcting the first gray level signal based on the first gray level signal and the second gray level signal so as to compensate for a reduction in the first electric current caused by a voltage drop that occurs in the electric current path.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: September 11, 2018
    Assignee: JOLED INC.
    Inventors: Shinya Ono, Shigeo Homura
  • Patent number: 10061426
    Abstract: A self-capacitive touch display panel includes a resistor, a first capacitor, a second capacitor, a third capacitor, a common electrode, a display driving source, and a touch sensing circuit. The first capacitor is coupled between a first terminal of the resistor and a ground terminal. The second capacitor and the third capacitor are coupled in series between the first terminal of the resistor and the ground terminal. The common electrode is coupled to a second terminal of the resistor. The display driving source is coupled between the second capacitor and the third capacitor. The touch sensing circuit is coupled to the common electrode and used to sense a touch capacitance via the common electrode when touch sensing. A first driving voltage of the display driving source is larger than a second driving voltage of the common electrode, so that the touch capacitance sensed by the touch sensing circuit is smaller than the capacitance of the first capacitor.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: August 28, 2018
    Assignee: Raydium Semiconductor Corporation
    Inventors: Kun-Tsung Lin, Chih-Hsiung Chen, Chih Yuan
  • Patent number: 10061356
    Abstract: A flexible display panel including: a flexible panel including a first region including a display region and oriented on a first plane and a second region including a non-display region and oriented on a second plane different from the first plane; and a flexible encapsulation member disposed on the flexible panel so as to encapsulate at least the display region.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: August 28, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Un Jin, Woo-Jong Lee, Yang-Wan Kim, Young-Sik Kim, Jun-Sang Lyu, Sang-Min Kim
  • Patent number: 10042492
    Abstract: An apparatus including a notched shield electrode portion including a notch at an edge; and an overlapping shield electrode portion, wherein the overlapping shield electrode portion overlaps the notch in the notched shield electrode portion.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: August 7, 2018
    Assignee: Nokia Technologies Oy
    Inventors: Janne Lesonen, Esa Makelainen
  • Patent number: 10043459
    Abstract: A display device includes a display timing controller to effect interlaced writing of images to a display panel. The display timing controller includes a single-frame buffer memory and is configured to, during a first frame write time, write odd row image data from odd row memory locations to odd rows of pixels of the display device while simultaneously storing even row image data into even row memory locations while abstaining from overwriting the odd row data. At a second frame write time, the display timing controller writes even row image data from the even row memory locations to the even rows of pixels of the display device while simultaneously storing odd row image data into odd row memory locations while abstaining from overwriting odd row image data.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: August 7, 2018
    Inventor: Petrus Maria de Greef
  • Patent number: 10031590
    Abstract: A method of one embodiment includes generating, by a stylus, a composite signal. The composite signal includes a first signal having a first frequency, the first signal being used by a touch-sensing device to determine a position of the stylus relative to the touch-sensing device, and a second signal having a second frequency. The second signal may include status information such as an amount of force exerted on the stylus, battery information, orientation information, information indicating whether the stylus is within a threshold distance of the touch-sensing device, information indicating a status of a button of the stylus, and/or information indicating input from a user of the stylus. Furthermore, the second frequency is higher than the first frequency. The stylus sends the composite signal to the touch-sensing device, and an electrode array of the touch-sensing device may receive the composite signal.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: July 24, 2018
    Assignee: Atmel Corporation
    Inventors: Vemund Kval Bakken, Izhar Bentov, Vivek Pant
  • Patent number: 10021759
    Abstract: The present disclosure discloses a pixel unit driving circuit, a driving method, and a display apparatus, wherein the pixel unit driving circuit includes a light-emitting device, a driving transistor, a first switching transistor, a second switching transistor, a third switching transistor, a fourth switching transistor, a first capacitor, and a second capacitor. The pixel unit driving circuit is driven in a stepwise manner by the turn-on/off of the switching transistors in cooperation with the charging of the capacitors, so that a driving current of the driving transistor has no relation to the turn-on voltage Vth of the driving transistor, and in turn the evenness of a current flowing through the light-emitting device is guaranteed so as to achieve the evenness of the luminance of the light-emitting device.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: July 10, 2018
    Inventors: Xiaojing Qi, Bo Wu
  • Patent number: 10019939
    Abstract: An organic light emitting display device includes a display panel having pixels and a display panel driver driving the display panel. Each of the pixels includes an organic light emitting diode, and the display panel driver selects one of the pixels, determines a reference grayscale value, compares a grayscale value, and determines the selected pixel as a low grayscale pixel when the grayscale value is lower than the reference grayscale value and higher than a black grayscale value. Some of the low grayscale pixels display the black grayscale value when there are more than one neighboring low grayscale pixels. The reference grayscale value is determined based on a reference grayscale variable, and the reference grayscale variable includes at least one of a temperature of the display panel, a time period when the selected pixel emits light, and a wavelength of light emitted by the selected pixel.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: July 10, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hoon Lee, Seung Ho Park, Do Hyung Ryu, Jae Woo Song, Hae Goo Jung
  • Patent number: 10013096
    Abstract: In one embodiment, a method comprises generating, by a controller, a plurality of drive signals. The method further includes simultaneously transmitting, by the controller, the plurality of drive signals to a plurality of drive electrodes disposed on a touch sensor. The method further includes sensing a sense electrode of a plurality of sense electrodes disposed on the touch sensor. The sensing comprises measuring, for each drive electrode of the plurality of drive electrodes, at least one value indicative of a capacitance between the sense electrode and the drive electrode.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: July 3, 2018
    Assignee: Atmel Corporation
    Inventors: Vemund Kval Bakken, Izhar Bentov, Vivek Pant, Shahrooz Shahparnia
  • Patent number: 10001878
    Abstract: An electronic device includes a fascia manufactured from a shape memory polymer. One or more thermal elements can be disposed adjacent to the fascia or integrated into the fascia. One or more processors can be operable with the one or more thermal elements to detect deformation along at least a portion of the fascia and cause the one or more thermal elements to selectively apply heat to the shape memory polymer along at least a portion of the fascia to reverse at least some of the deformation.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: June 19, 2018
    Assignee: Motorola Mobility LLC
    Inventors: Charles David Wood, Phillip A Green
  • Patent number: 9984636
    Abstract: Provided if a display device including a liquid crystal panel, a common voltage generator configured to generate a common voltage, and a common voltage compensator. The liquid crystal panel includes gate lines, data lines, pixels, and a common electrode. The pixels include first pixels and second pixels. The first pixels and the second pixels are respectively disposed in pixel rows adjacent to each other, respectively constitute different columns, are connected to the same gate line, display the same color, and receive data voltages having different polarities. When a boundary of a pattern included in image data, extending in a first direction, lies between the first pixels and the second pixels, the common voltage compensator is configured to compensate the common voltage.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: May 29, 2018
    Inventors: Donghwa Shin, Taejin Kim
  • Patent number: 9978318
    Abstract: An electronic paper display device includes a display region, a signal-sending region, data lines, scan lines, selection-line regions, and a repair line. The signal-sending region is located at a side of the display region. The scan lines intersect the data lines to divide the display region into pixel regions. Each of the selection-line regions is located at a side of one of the scan lines. Disposed on two sides of each of the scan lines are respectively one of the pixel regions and one of the selection-line regions. Each of the selection-line regions has selection lines. The selection lines intersect the data lines. The repair line is between the signal-sending region and the display region. The repair line intersects the selection lines. The repair line and the data lines are selectively electrically connected to one of the selection lines.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: May 22, 2018
    Assignee: E Ink Holdings Inc.
    Inventors: Yao-Te Tseng, Wen-Jung Lee, Jia-Hung Chen, Shu-Fen Tsai
  • Patent number: 9972258
    Abstract: A driving method of polarity inversion of liquid crystal panels includes driving sub-pixels within a predetermined area of the liquid crystal panel by a period having m number of consecutive frames, and m is an integer larger than four. Wherein polarity of sub-pixel driving voltage of a first predetermined number of consecutive frames among the m number of frames are the same, and the polarity of the sub-pixel driving voltage of the frames other than the first predetermined number of consecutive frames is opposite to the polarity of the sub-pixel driving voltage of the adjacent frames. With such configuration, the IS issue when displaying images by the liquid crystal panel may be eliminated.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: May 15, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Lixuan Chen
  • Patent number: 9974142
    Abstract: An electronic display assembly which allocates power to a plurality of displays without exceeding a maximum current level for the circuit is disclosed. An exemplary system preferably includes an AC current sensor, a power load sharing controller, ambient light sensors for each display, and a brightness controller for each display. A maximum total current draw may be selected. The ambient light contacting each display may be measured and a corresponding desired brightness calculated. Depending on the present amount of current draw, the system determines if the displays can be driven at the desired brightness without exceeding the maximum total current draw. If yes, the displays are driven at their desired brightness. If no, the desired brightness for each display may be slightly reduced to prevent exceeding the maximum total current draw. Thus, as the ambient light varies between the displays, the available power may be shared.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: May 15, 2018
    Inventors: William Dunn, Jerry Wasinger, Dave Williams, John Schuch
  • Patent number: 9971182
    Abstract: A touch panel and a preparation method therefor, which relate to the technical field of electronic device preparation. The method for preparing a touch panel comprises: firstly, preparing a BM frame layer (1), and then sequentially preparing an ITO1 layer (2), an OC1 layer (3) and an ITO2 layer (4a, 4b) in the BM frame layer (1); then, preparing a window frame layer (5) outside the BM frame layer (1) by means of a printing process; and finally, preparing a designated metal wiring layer (6a, 6b) and an OC2 layer (7). The touch panel and the preparation method therefor solve the problem that a white window frame in the current industry is yellowed easily. Compared with a yellow light lithography for preparing the window frame, the printing process for preparing the window frame is simpler in production process, higher in defect-free rate and lower in corresponding cost, and can reduce pollution from discharge of wastewater and waste gas generated by the chemical solution to the environment.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: May 15, 2018
    Assignee: Lens Technology (Changsha) Co., Ltd
    Inventors: Qunfei Zhou, Qiaobing Rao, Jiahui Chen
  • Patent number: 9964830
    Abstract: An electrophoretic display apparatus includes a first substrate, a plurality of sub-pixel structures, a color filter array, and an electrophoretic layer. The sub-pixel structures are disposed on the first substrate, and each of the sub-pixel structures includes a plurality of sub-pixel sub-structures. The color filter array is disposed above the sub-pixel structures, and includes a plurality of filter units. The filter units are divided into a plurality of groups having different colors, and the filter units belonging to the groups having different colors are alternately disposed above the sub-pixel structures. Each of the filter units corresponds to the sub-pixel sub-structures of at least one sub-pixel structure, and at least two of the sub-pixel sub-structures of the same sub-pixel structure are adapted to be applied different voltages. The electrophoretic layer is disposed on the sub-pixel structures.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: May 8, 2018
    Assignee: E Ink Holdings Inc.
    Inventors: Po-Yuan Lo, Tai-Yuan Lee
  • Patent number: 9965120
    Abstract: An electronic device and method for processing an input are provided. The electronic device includes a digitizer pad formed by a single channel and a digitizer pad controller configured to supply a current to the digitizer pad, sense a change in at least one of a frequency and a phase of an electromagnetic field corresponding to a pressure intensity applied by a tip of an external input device, and determine data related to the pressure intensity applied by the external input device based on the change in the at least one of the frequency and the phase of the sensed electromagnetic field.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: May 8, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Sungchul Park
  • Patent number: 9959825
    Abstract: A liquid crystal display device that performs intermittent driving involving a driving period and an idle period includes a gray scale level control unit that generates, from an input image signal, an image signal for display and an image signal for correction. A signal line control unit writes the image signal for correction to the plurality of signal lines before writing the image signal for display during a driving period. An LUT stores a correction gray scale value associated with a gray scale value of at least a current frame. An adding circuit corrects the input image signal based on the correction gray scale value read from the LUT. The subtracting circuit specifies, in a pixel region, a regular image pattern including at least a first pixel and a second pixel and changes an output from the adding circuit for the first image by a predetermined gray scale width.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: May 1, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Fumiyuki Kobayashi, Asahi Yamato, Akizumi Fujioka, Ken Inada
  • Patent number: 9952106
    Abstract: Input device configurations are described. In implementations, an input device includes a sensor substrate having a capacitive sensor to detect proximity of an object that contacts the input device. The input device also includes a flexible contact layer spaced apart from the sensor substrate, where the flexible contact layer is implemented to flex and contact the sensor substrate responsive to pressure applied by the object to initiate an input to a computing device. The flexible contact layer can include a force concentrator pad that is designed to cause pressure to be channeled through the force concentrator pad to cause the flexible contact layer to contact the sensor substrate to initiate the input.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: April 24, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Timothy C. Shaw, Flavio P. Ribeiro, Glennis E. Covington, Christian C. Gadke, Xuezhong Wu, Bradley R. Martin, Francie Judith Zant, Scott M. Mail, James C. Marshall
  • Patent number: 9946415
    Abstract: A control method for a touch sensor panel may be provided that includes: obtaining touch information on the touch sensor panel from which an electrical signal outputted is changed according to a touch; detecting at least one valid touch from the touch information; determining the valid touch which is included in a palm touch group among the at least one valid touch; and displaying an input corresponding to the valid touch other than the valid touch which is included in the palm touch group among the at least one valid touch, on a display unit.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: April 17, 2018
    Assignee: HIDEEP INC.
    Inventor: Moonki Hong