Patents Examined by Sejoon Ahn
  • Patent number: 9501179
    Abstract: In one embodiment, an apparatus includes a substantially flexible substrate configured to bend at an edge between a first surface and a second surface of a device. The edge has an angle of deviation between the first and second surfaces of at least approximately 45°. The apparatus includes a touch sensor disposed on the substantially flexible substrate and configured to bend with the substantially flexible substrate at the edge between the first and second surfaces. The touch sensor includes drive or sense electrodes made of flexible conductive material configured to bend with the substantially flexible substrate at the edge between the first and second surfaces. The touch sensor has at least one active area on each of the first and second surfaces.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: November 22, 2016
    Assignee: Atmel Corporation
    Inventors: Esat Yilmaz, Jalil Shaikh, David Brent Guard
  • Patent number: 9489895
    Abstract: An organic light-emitting display device having a signal line that is shared by a first column of pixels and a second column of pixels to transmit a data signal and a sensing signal. The organic light-emitting display device includes a plurality of columns of pixels, and a plurality of signal lines extending between the plurality of columns of pixels. Each of the plurality of signal lines is configured to transmit a data signal from a data driver to the first column of pixels at first times. The data signals control the operation of an organic light-emitting element in the first column of pixels. The same signal line transmits a sensing signal from the second column of pixels to the data driver at second times. The sensing signal represents a variable property of an electrical component in a pixel of the second column of pixels.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: November 8, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Seung Tae Kim, Bum Sik Kim
  • Patent number: 9454937
    Abstract: A timing controller capable of adjusting luminance of a maximum gradation according to an amount of white of image data to thus enhance picture quality and reduce power consumption of a liquid crystal display device, a liquid crystal display device having the same, and a driving method thereof are provided. The timing controller includes: a gamma adjusting unit for receiving image data and a plurality of driving signals input from the outside, generating a gate control signal and a data control signal according to the plurality of driving signals, adjusting luminance according to an amount of white in the image data, and generating a corresponding gamma control signal.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: September 27, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: KyungRok Kim, SaiChang Yun, YouSung Nam, MoonSoo Chung
  • Patent number: 9412801
    Abstract: An OLED display device includes a display area of a substrate to display images; a non-display area surrounding the display area and applying signals to pixels within the display area; a first thin film transistor formed in the non-display area of the substrate; a second thin film transistor formed in the display area of the substrate; a planarization film formed over the first and second thin film transistors; a first electrode formed on the planarization film in the non-display area and formed with at least one first opening; a second electrode formed on the planarization film and connected to a electrode of the second thin film transistor; a bank pattern formed on the second electrode and the first electrode and exposing a part of the second electrode. The bank pattern is adjacent to the first electrode.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: August 9, 2016
    Assignee: LG Display Co., Ltd.
    Inventor: Hee Dong Choi
  • Patent number: 9377906
    Abstract: Discussed are a display device with an integrated touch screen and a method of operating the same. The display device according to an embodiment includes a display panel including a plurality of pixel electrodes; a touch screen including m number of electrodes which are formed to overlap with the plurality of pixel electrodes, wherein m is a multiple of n, and n is an integer equal to or greater than two, and wherein the m electrodes are divided into n number of electrode groups; a touch driver configured to generate a touch scan signal and to supply the generated touch scan signal to a display driver; and the display driver configured to apply a common voltage or the touch scan signal to one or more of the m electrodes depending on a driving mode of the display device.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: June 28, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: JungHan Lee, HongChul Kim, SungChul Kim, JeongSeop Lee, SeungEun Pyo
  • Patent number: 9373297
    Abstract: Liquid crystal display (LCD) driver circuits, and corresponding driving methods, having selectable grayscale and bi-level modes, that also provide DC restore are presented, including an example embodiment driver circuit having selectable direct current (DC) restore voltage switches including a digital to analog converter, a high voltage video signal path including a high voltage video amplifier, a set of high voltage level switches, a high voltage capacitor and a low voltage video signal path including a low voltage video amplifier, a set of low voltage level switches, a low voltage capacitor. Advantages include, for some applications, a display operates in a bi-level mode saving power relative to operating in a grayscale mode, while also being able to offer full grayscale mode in other applications. Further, advantages of some example embodiments include an extended DC-restore mode providing a longer period of DC restore voltage.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: June 21, 2016
    Assignee: Kopin Corporation
    Inventor: Frederick P. Herrmann
  • Patent number: 9373413
    Abstract: A shift register unit, a shift register circuit, an array substrate and a display device can avoid a phenomenon that light lines and dark lines appear alternately in a horizontal direction in a gray scale state when the display device is lighted up normally, wherein the phenomenon is generated because a clock signal causes an abnormal output of a gate scanning voltage of the shift register unit when a frame start signal comes. The shift register unit comprises a capacitor (C1), a first transistor (T1), a second transistor (T2), a third transistor (T3), a fourth transistor (T4), a fifth transistor (T5), a sixth transistor (T6), and a voltage pulling-down control module. The shift register unit, the shift register circuit, the array substrate and the display device can be used for the manufacture of a display.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: June 21, 2016
    Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shijun Wang, Xue Dong, Xi Chen
  • Patent number: 9373285
    Abstract: Provided is a display device for a vehicle such that the life of display elements can be made long even when used in a high temperature environment and, further, unpleasant sensations due to changes in brightness of display images can be prevented. A control unit (90) provides a display period (Fa) in which an illumination control unit (91) turns on light sources (11), and a display control unit (92) generates a display image (M) in display elements (30) within a frame (F) that constitutes the display image (M) on the basis of a display image signal and a non-display period (Fb) in which the illumination control unit (91) turns off all light sources (11). When the display control unit (92) changes the display period proportions (A) for mirrors (E) for the display elements (30) according to prescribed conditions, drive currents (I) and drive periods (H) for the light sources (11) are changed simultaneously such that brightness is not changed.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: June 21, 2016
    Assignee: NIPPON SEIKI CO., LTD.
    Inventor: Makoto Hada
  • Patent number: 9354453
    Abstract: The display device includes a display panel including upper and lower array substrates, and a patterned retarder to separate an image displayed on the display panel into left-eye and right-eye images, wherein the lower array substrate includes gate and data lines to define pixel areas, a pixel electrode formed at each pixel area, and a black stripe formed at a boundary between the pixel areas to display the left-eye image and the pixel areas to display the right-eye image, wherein the black stripe includes a first black stripe formed on the same layer and formed of the same material as an opaque layer of a thin film transistor, and a second black stripe overlapped with the first black stripe and formed on the same layer and formed of the same material as the pixel electrode.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: May 31, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Woo-Yeal Jun, Sung-Kon Ko, Kyung-Soon Kim, Young-Hee Lee
  • Patent number: 9349316
    Abstract: An organic light-emitting display device having a signal line that is shared by a first column of pixels and a second column of pixels to transmit a data signal and a sensing signal. The organic light-emitting display device includes a plurality of columns of pixels, and a plurality of signal lines extending between the plurality of columns of pixels. Each of the plurality of signal lines is configured to transmit a data signal from a data driver to the first column of pixels at first times. The data signals control the operation of an organic light-emitting element in the first column of pixels. The same signal line transmits a sensing signal from the second column of pixels to the data driver at second times. The sensing signal represents a variable property of an electrical component in a pixel of the second column of pixels.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: May 24, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Seung Tae Kim, Bum Sik Kim
  • Patent number: 9349348
    Abstract: A laser beam display device includes: a dimming setting input unit into which any one of the dimming values of plural dimming steps are input; a first dimming processing unit having plural dimming LUTs that store dimming amounts regarding the respective dimming steps with the corresponding gradation levels as indexes; a second dimming processing unit having one gain LUT that holds gains regarding the respective dimming steps and a multiplier that creates the indexes for the respective dimming LUTs by multiplying a video signal by the gains; and a light source drive unit that drives a laser diode on the basis of reference results obtained by referring to the dimming LUTs of the first dimming processing unit. The luminance of the emission beam of the laser diode, which corresponds to the video signal, is dimmed in accordance with a dimming setting input from the dimming setting input unit.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: May 24, 2016
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventors: Fumio Haruna, Yuya Ogi, Tomoki Kobori, Yoshiho Seo, Masayuki Hatori, Toshio Ueda
  • Patent number: 9318071
    Abstract: A display device includes pixels and includes a gate driver for providing gate signals to the pixels. The display device further includes a level shifter element for providing a boosted clock signal to the gate driver. The display device further includes a controller. The level shifter element includes a first level shifter for providing one of a first gate-on voltage and a gate-off voltage as a first clock signal in response to a gate pulse signal received from the controller. The level shifter element further includes a second level shifter for providing one of a second gate-on voltage and the first clock signal as the boosted clock signal in response to a first control signal received from the controller. The second gate-on voltage is higher than the first gate-on voltage. The gate driver may provide the gate signals in response to the boosted clock signal.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myung-Ho Won, Ri-Na You
  • Patent number: 9318063
    Abstract: A method of driving a display apparatus including a plurality of pixels that respectively store a voltage level corresponding to a data signal and respectively include a storage capacitor connected between a pixel electrode and a second common voltage electrode, the method including operations of determining whether image data of a current frame is changed, compared to image data of a previous frame, when the image data of the current frame is changed, storing a voltage level corresponding to the image data of the current frame in the storage capacitor of each of the plurality of pixels, and when the image data of the current frame is not changed, changing a level of a second common voltage applied to the second common voltage electrode of each of the plurality of pixels.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Tae-Jin Kim
  • Patent number: 9311892
    Abstract: Embodiments of the present invention relate to an electronic paper display device and its driving method. The electronic paper display device comprises a plurality of pixels. Each of the pixels includes at least two thin film transistors, and each thin film transistor is electrically connected to a corresponding data line and a corresponding gate line respectively, and within one refresh cycle, is turned on once separately. Embodiments of the invention can make refresh rate quicker and requirement on storage capacitance lower so as to achieve faster grayscale refresh.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: April 12, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhuo Zhang, Cuili Gai
  • Patent number: 9285932
    Abstract: A device stores running baseline measurements and initial baseline measurements for a plurality of touch sensors. The device repeatedly takes measurements from the touch sensors during device operation, and counts a number of positive transitions of the measurements, and counts a number of negative transitions of the measurements, the transitions relative to the stored initial baseline measurements. The device re-initializes the stored initial baseline measurements if and only if the count of negative transitions differs from the count of positive transitions by a predetermined amount (a “negative touch state”).
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: March 15, 2016
    Assignee: PARADE TECHNOLOGIES, LTD.
    Inventor: Dennis Wavomba
  • Patent number: 9244572
    Abstract: A touch-sensitive display includes first electrodes and second electrodes arranged and constructed to detect touches by mutual-capacitance touch sensing, and third electrodes and the second electrodes arranged and constructed to detect touches by self-capacitance touch sensing, wherein the first electrodes are different from the third electrodes.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: January 26, 2016
    Assignee: BlackBerry Limited
    Inventors: Amit Pal Singh, John Edward Dolson
  • Patent number: 9240150
    Abstract: A display module of the present invention includes first through third source drivers (6-1 through 6-3) (i) which are provided for respective regions into which a display region is divided and (ii) each of which includes an analysis circuit and receives a video signal for a corresponding one of the regions but receives no video signal for the regions other than the corresponding one of the regions. The third source driver (6-3) supplies, to the first and second source drivers (6-1 and 6-2), gamma (?) setting information (19) for generating a source signal to be outputted from each of the first and second source drivers (6-1 and 6-2). The first and second source drivers (6-1 and 6-2) output respective analysis results (5a and 5b) from the respective analysis circuits. The third source driver (6-3) outputs a PWM signal (14) for controlling the light irradiation section.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: January 19, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kohji Saitoh, Masaki Uehata, Masami Ozaki
  • Patent number: 9235324
    Abstract: A machine-implemented method for processing touch elements of an application of a device is provided. The method includes receiving application data associated with the application, the application data providing for the touch elements, each of the touch elements comprising an activation area configured to receive a user input and to trigger at least one function of the application upon receiving the user input. The method further includes determining, from the application data, that plural ones of the touch elements are for display in a group in the application; and classifying, in response to the determining, each of the touch elements of the group into two or more categories based on the application function of the touch element. The method further includes defining a size of the activation area for at least one of the touch elements based on the classification.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: January 12, 2016
    Assignee: Google Inc.
    Inventors: Alex Ainslie, John Nicholas Jitkoff
  • Patent number: 9224327
    Abstract: A display apparatus includes an OLED panel receiving an input of a video signal and a plurality of driving power levels for RGB colors and displaying an image, a video signal providing unit providing the video signal to the OLED panel, and a power supply supplying the plurality of driving power levels to the OLED panel unit and performing individual feedback control for each of the plurality of driving power levels.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 29, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byeong-cheol Hyeon, Kang-hyun Yi
  • Patent number: 9208714
    Abstract: A display panel is provided, including an image data storage capacitor, a capacitive element, and four switches. The image data storage capacitor stores an image data. The sample unit has a control terminal for receiving a sample control signal. The capacitive element has a first terminal coupled to a pixel electrode of the image data storage capacitor via the sample unit. The first refresh unit has a control terminal coupled to the first terminal. The second refresh unit has a control terminal for receiving a refresh control signal. The third and first refresh units are serially coupled with each other between a corresponding source line and the image data storage capacitor for receiving a data signal. The shunt unit has a control terminal coupled to the pixel electrode, a data terminal coupled to the first terminal, and another data terminal for receiving a shunt control signal.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: December 8, 2015
    Assignee: INNOLUX CORPORATION
    Inventor: Keitaro Yamashita