Patents Issued in July 29, 2014
  • Patent number: 8791895
    Abstract: In a memory liquid crystal display device, a potential of a storage capacitor line signal (CS) supplied to the CS lines (CSL(i)) are once decreased (?Vcs) while the gate lines (GL(i)) are made simultaneously active (period t4, period t10) in the data holding period (T2), and the potential of the storage capacitor line signal (CS) is made back to its original potential while the gate lines (GL(i)) are made simultaneously inactive and the refresh output control lines (RC(i)) are made active (period t5, period t11). This reduces flicker, thereby allowing for improvement in display quality of the memory liquid crystal display device.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: July 29, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Makoto Yokoyama, Shige Furuta, Yuhichiroh Murakami, Yasushi Sasaki, Seijirou Gyouten, Shuji Nishi
  • Patent number: 8791896
    Abstract: An electrophoretic display apparatus includes a first substrate including a plurality of pixels, a second substrate facing the first substrate, an electrophoretic material between the first and second substrates, and a first electrode on the first substrate or the second substrate. Each pixel includes a reflection part and a second electrode. The reflection part is on the first substrate and reflects light incident through the second substrate. The second electrode is on the first substrate and adjacent to the reflection part. The second electrode forms an electric field with the first electrode such that the electrophoretic material moves to the first electrode or the second electrode. An upper surface of the second electrode is positioned at a first height from the first substrate, and an upper surface of an uppermost layer of the reflection part is positioned at a second height higher than the first height.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: July 29, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seonggyu Kwon, Gilhwan Yeo, Myung-Eun Kim, Byungseok Choi, Jung-Moo Hong, SonUk Lee, Sang-Hee Jang
  • Patent number: 8791897
    Abstract: Charge balanced display data writing methods use write and hold cycles of opposite polarity during selected frame update periods. The transitions between voltages of opposite polarity are sufficiently brief that the display elements do not change state. A release cycle may be provided to reduce the chance that a given display element will become stuck in an actuated state.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: July 29, 2014
    Assignee: Qualcomm MEMS Technologies, Inc.
    Inventors: Clarence Chui, Manish Kothari
  • Patent number: 8791898
    Abstract: Methods and apparatus of interaction with and control of a portable media device through applied motion. In the embodiments described herein, the portable media device can include at least two displays arranged such that only one can be presented at a time. The portable media device can be configured to operate as a electronic book (e-book) having at least one electrophoretic type display having a refresh time less than an amount of time to rotate the e-book to view the refreshed display.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: July 29, 2014
    Assignee: Apple Inc.
    Inventors: Benjamin A. Rottler, Michael I. Ingrassia, Jr.
  • Patent number: 8791899
    Abstract: A method and apparatus of detecting user initiated movement by an input element handled by a user is disclosed. The method may include performing a calibration procedure that is initiated by the user via a physical movement performed by the user. The method may also include positioning at least one sensor to dynamically adjust a size of an effective workspace range capable of detecting the user's movement of the input element.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: July 29, 2014
    Assignee: Open Invention Network, LLC
    Inventor: Matthew Kevin Usey
  • Patent number: 8791900
    Abstract: Computing device note techniques are described. In implementations, an input is recognized as selecting at least one object displayed in a user interface by a display device of a computing device. Responsive to the recognition, an indication is displayed on the display device that is selectable. Responsive to selection of the indication, a portion is displayed by the computing device that is configured to accept one or more inputs as a note to be associated with the at least one object.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: July 29, 2014
    Assignee: Microsoft Corporation
    Inventors: Jonathan R. Harris, Andrew S. Allen
  • Patent number: 8791901
    Abstract: Systems and methods for tracking an object's position and orientation within a room using patterns projected onto an interior surface of the room, such as the ceiling. Systems include at least one optical position sensitive device embedded in the object to detect relative changes in the projected pattern as the object's position and/or orientation is changed. In particular systems, the pattern includes a plurality of beacons projected by one or more steerable lasers. Projected beacons may be steered automatically to accommodate a variety of room topologies. Additional optical position sensitive devices may be disposed in known physical positions relative to the projected pattern to view either or both the projected pattern and the object. A subset of object positional data may be derived from a video camera viewing the object while another subset of object positional data is derived from the projected pattern.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: July 29, 2014
    Assignee: Sony Computer Entertainment, Inc.
    Inventor: Dominic S Mallinson
  • Patent number: 8791902
    Abstract: A haptic device includes a substrate that is subjected to lateral motion such as lateral oscillation with one or more degrees of freedom together with modulation of a friction reducing oscillation in a manner that can create a shear force on the user's finger or on an object on the device.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: July 29, 2014
    Assignee: Northwestern University
    Inventors: James Edward Colgate, Michael A. Peshkin
  • Patent number: 8791903
    Abstract: A pointing device is provided. The pointing device is configured to output a movement instruction signal for moving a cursor on a display in an instructed direction and includes: a pointing stick; a cursor movement including a +X sensor, ?X sensor, +Y sensor and ?Y sensor configured to sense a cursor movement instruction signal for instructing the cursor to move in +X direction, ?X direction, +Y direction and ?Y direction, respectively, according to an operation to the pointing stick; and a stick Z direction operation detector configured to determine that an instruction signal according to an operation to the pointing stick is different from the cursor movement instruction signals when each of outputs from the +X sensor, ?X sensor, +Y and ?Y sensor is changed by a corresponding predetermined first threshold value or greater within a predetermined time period.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: July 29, 2014
    Assignee: Minebea Co., Ltd.
    Inventors: Naoyuki Miyazaki, Takashi Kashino, Naoki Yamaguchi
  • Patent number: 8791904
    Abstract: The invention provides a system (10) and method for moving a cursor (16) in response to pointing device movements according to a certain transfer function, wherein the transfer function is such that when the cursor (16) hits the edge of the screen (12) and the pointing device movement continues further beyond this point in a direction which cannot be followed by the cursor (16) due to reaching the edge of the screen (12), the pointing device movement is remembered and the cursor (16) starts moving away from the edge again, when the pointing device (20) is moved back by the same distance as it was moved beyond the point when the cursor (16) had hit the edge of the screen (12); or wherein the transfer function is variable according to previous pointing device movements, which were made within a previous time frame, such that small movements within the previous time frame lead to the ratio of pointing device movement to the cursor movement being greater than in the case of large movements within the previous tim
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: July 29, 2014
    Assignee: Koninklijke Philips N.V.
    Inventor: Hendrikus Bernardus Van Den Brink
  • Patent number: 8791905
    Abstract: A handheld electronic device includes a reduced QWERTY keyboard and is enabled with disambiguation software that is operable to disambiguate text input. In response to an ambiguous editing input at a location preceding at least a portion of an output word, the software performs one disambiguation operation with respect to the editing input and another disambiguation operation with respect to the editing input in combination with the at least portion of the output word. The results are output in order of decreasing frequency value, with the results of the one disambiguation operation having the portion of the output word appended thereto.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: July 29, 2014
    Assignee: BlackBerry Limited
    Inventors: Micahael Elizarov, Vadim Fux, Dan Rubanovich
  • Patent number: 8791906
    Abstract: A handheld electronic device includes a reduced QWERTY keyboard and is enabled with disambiguation software. The device provides output in the form of a default output and a number of variants. The output is based largely upon the frequency, i.e., the likelihood that a user intended a particular output, but various features of the device provide additional variants that are not based solely on frequency and rather are provided by various logic structures resident on the device. The device enables editing during text entry and also provides a learning function that allows the disambiguation function to adapt to provide a customized experience for the user. The disambiguation function can be selectively disabled and an alternate keystroke interpretation system provided. If a field into which text is being entered is determined to be a special input field, a disambiguated result can be sought first from a predetermined data source prior to seeking results from other data sources on the device.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: July 29, 2014
    Assignee: BlackBerry Limited
    Inventors: Vadim Fux, Michael Elizarov, Sergey V. Kolomiets
  • Patent number: 8791907
    Abstract: A touch sensing apparatus utilizes the characteristics of orthogonal vectors is disclosed. A random spread spectrum (RSS) signal or a periodic wave is used to modulate a driving signal so as to driving a row of a sensing array, and the RSS signal or periodic wave is also use to extract touch information of a node from a sensing signal measured from a column of the sensing array. The node is an intersection of the driven row and the measured column. When different RSS signals and/or periodic waves are used to drive multiple rows simultaneously, multipoint touching information can be obtained from the same sensing signal at the same time by respectively using the RSS signals and/or periodic waves to extract touching information of multiple points which are the intersections of the driven rows and the measured column.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: July 29, 2014
    Assignee: U-Pixel Technologies Inc.
    Inventor: Hung Wei Wu
  • Patent number: 8791908
    Abstract: A touch panel and an electronic device including the same are provided. The touch panel includes a first substrate, a second substrate, an electro-rheological fluid, a sensor, and a controller. The second substrate is spaced apart from the first substrate by a gap and includes a touch surface. The electro-rheological fluid is filled in a gap between the first substrate and the second substrate. The sensor senses an input on the touch surface and determines an input location at which the input occurs, and the controller varies a viscosity of the electro-rheological fluid in a location corresponding to a peripheral region of the input location.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: July 29, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sunghyuk Park, Seong-Taek Lim
  • Patent number: 8791909
    Abstract: A display panel is provided. The display panel comprises a first substrate, a second substrate, a display control circuit and a force sensing circuit. The display control circuit is disposed on the first substrate between the first substrate and the second substrate for controlling the display panel to display an image through the second substrate. The force sensing circuit is disposed side by side with the display control circuit on the first substrate between the first substrate and second substrate, wherein the force sensing circuit comprises a plurality of force sensing elements for sensing at least one external force and correspondingly generate a plurality of force signals respectively to transform at least one touch signal corresponding to the at least one external force.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: July 29, 2014
    Assignee: E Ink Holdings Inc.
    Inventors: Yao-Chou Tsai, Sung-Hui Huang, Po-Wen Hsiao, Ted-Hong Shinn
  • Patent number: 8791910
    Abstract: In one embodiment, a method includes receiving two or more output signals responsive to two or more capacitive couplings. Each of the capacitive couplings has occurred between a pointing object and one of two or more sensing areas within a sensing region, and each of the sensing areas has a position within the sensing region. The method includes, if two or more of the output signals each have an output-signal level that exceeds a predefined activation level, then selecting a particular one of the sensing areas with output-signal levels exceeding the predefined activation level as an intended one of the sensing areas based on a predefined ranking scheme that takes into account the positions of the sensing areas within the sensing region.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: July 29, 2014
    Assignee: Atmel Corporation
    Inventor: Harald Philipp
  • Patent number: 8791911
    Abstract: Multichannel device controllers are disclosed. In one embodiment, a multichannel device controller includes a plurality of user selectable control modes for controlling a multichannel device and a plurality of user configurable settings for adjusting parameters associated with the plurality of user selectable control modes. A touchscreen displays a user interface corresponding to a selected one of plurality of user selectable control modes and receives user input indicative of a command to send to the multichannel device. A processor generates the command to send to the multichannel device based at least in part on the user input and the plurality of user configurable settings.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: July 29, 2014
    Assignee: Robotzone, LLC
    Inventors: Brian T. Pettey, Christopher L. Holt
  • Patent number: 8791912
    Abstract: A display system is disclosed. The display system includes several electrical apparatuses and a display control unit. The display control unit builds connections with the electrical apparatuses. The display control unit includes an information generating module and a display driving module. When the display system is in a combination display mode, the information generating module detects and generates combination information about combination relations among the display units of the electrical apparatuses. The display driving module drives each of the display units to display a corresponding image block according to the combination information. Hence, the displayed corresponding image blocks can be combined to form an entire image. A display method is also disclosed.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: July 29, 2014
    Assignee: National Central University
    Inventors: Yen-Wen Chen, I-Hsuan Peng, Yen-Yin Chu
  • Patent number: 8791913
    Abstract: Methods and apparatus for correcting gesture-based input commands supplied by a user to a gesture-based touch screen display include using one or more sensors to detect that at least one of the touch screen display or the user is being subjected to an instability. Corrections to gesture-based input commands supplied to the touch screen display by the user are at least selectively supplied, in a processor, based upon the detected instability.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: July 29, 2014
    Assignee: Honeywell International Inc.
    Inventor: Amit Nishikant Kawalkar
  • Patent number: 8791914
    Abstract: An input method applicable for inputting into an electronic device, which includes the steps of capturing a lip motion of a person; receiving an image of the lip motion; encoding the lip motion image to obtain a lip motion code; comparing the lip motion code with a plurality of standard lip motion codes to obtain a first text result matching the lip motion code; and displaying the first text result on the electronic device if the first text result is obtained. If the first text result is not obtained, the method may further include activating an auxiliary analyzing mode for the electronic device for recognizing a facial expression, a hand gesture, or an audio signal to be inputted. The input method can diversify input methods for the electronic device.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: July 29, 2014
    Assignees: Inventec Appliances (Shanghai) Co., Inventec Appliances Corp., Inventec Appliances Corp., Shanghai
    Inventor: Rui Zhao
  • Patent number: 8791915
    Abstract: A portable electronic device is provided suitable for operation by a single user. The portable electronic device comprises a main body and at least a thin film pattern. The main body has a display region and a non-display region coupled to the display region. The thin film pattern is disposed on a local region of the display region, on a local region of the non-display region, or on both a local region of the display region and a local region of the non-display region. The thin film pattern is visible while a user does not operate the portable electronic device. The thin film pattern is invisible while a user operates the portable electronic device.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: July 29, 2014
    Assignee: HTC Corporation
    Inventors: Yao-Wen Yeh, I-Cheng Chuang
  • Patent number: 8791916
    Abstract: There are provide a display panel with a touch detection function, in which display operation is less affected by touch detection operation, a method of driving the display panel with a touch detection function, a driving circuit, and an electronic unit having the display panel with a touch detection function. The display panel with a touch detection function includes: one or more display elements; one or more drive electrodes; one or more touch detection electrodes; and a drive section selectively applying a DC drive signal or an AC drive signal to the drive electrodes.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: July 29, 2014
    Assignee: Japan Display West, Inc.
    Inventors: Hiroshi Mizuhashi, Yoshitoshi Kida, Koji Noguchi
  • Patent number: 8791917
    Abstract: A touch display device and a formation method thereof are provided. The touch display device includes a touch panel disposed on a first surface of a substrate of a display panel. A color filter layer is disposed on a second surface of the substrate. The touch panel includes a plurality of first and second conductive patterns arranged by two directions that are perpendicular to each other. A patterned isolation layer, having a first portion and a second portion, is formed over the first surface of the substrate, wherein the first portion is disposed at the intersection of the first and the second conductive patterns, and the second portion is disposed between the first and the second conductive patterns. The first portion has a height that is lower than a height of the second portion.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: July 29, 2014
    Assignee: Hannstar Display Corp.
    Inventors: Yi-Chung Juan, Kuo-Sheng Lee, Chang-Ching Yeh, Chien-Ting Chan, Sung-Chun Lin
  • Patent number: 8791918
    Abstract: According to an aspect, a character input device includes a touch panel, a vibrating unit, and a control unit. The touch panel displays a plurality of buttons each of which corresponds to a character, and detects a contact operation. The vibrating unit vibrates the touch panel. When the contact operation by a contact is detected by the touch panel while the contact on the touch panel is continued since a start of the contact at a first position on the touch panel on which the plurality of buttons are displayed, the control unit receives a character corresponding to a button, as an input, displayed at the position where the contact operation is detected. The control unit causes the vibrating unit to change a vibration behavior of the touch panel when the contact operation is detected.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: July 29, 2014
    Assignee: Kyocera Corporation
    Inventor: Tomohiro Sudo
  • Patent number: 8791919
    Abstract: An autostereoscopic display device having touch sensing mechanism includes a display panel for illustrating images, a touch sensing panel for detecting touch events, a 2D/3D switching panel disposed between the display panel and the touch sensing panel, and a control unit. The 2D/3D switching panel has a substrate, a first electrode disposed on the substrate, a counter substrate, and a second electrode disposed on the counter substrate. The control unit is employed to provide a first control signal and a second control signal furnished to the first electrode and the second electrode respectively. The first control signal is switched between a first high voltage and a first low voltage in a gradual-shift manner. The second control signal is switched between a second high voltage and a second low voltage in a gradual-shift or rapid-shift manner.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: July 29, 2014
    Assignee: AU Optronics Corp.
    Inventors: Hsiao-Chung Cheng, Jen-Chieh Chen, Tzu-Hsien Chuang, Ming-Sheng Lai, Shih-Hsiung Huang
  • Patent number: 8791920
    Abstract: Determining a compensated phase matrix for a multi-stimulus demodulation process is provided. A first drive line of a multi-stimulus sensing system is selected, and a stimulation signal is transmitted on the selected drive line. A channel gain resulting from the stimulation signal is measured from a received sense signal resulting from the stimulation signal. The measured channel gain is compared with a known channel gain to obtain an individual phase compensation for the selected drive line. A compensated phase matrix is formed of the individual phase compensation values for multiple drive lines.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: July 29, 2014
    Assignee: Apple Inc.
    Inventor: Christoph H. Krah
  • Patent number: 8791921
    Abstract: Techniques for identifying and discriminating between different types of contacts to a multi-touch touch-screen device are described. Illustrative contact types include fingertips, thumbs, palms and cheeks. By way of example, thumb contacts may be distinguished from fingertip contacts using a patch eccentricity parameter. In addition, by non-linearly deemphasizing pixels in a touch-surface image, a reliable means of distinguishing between large objects (e.g., palms) from smaller objects (e.g., fingertips, thumbs and a stylus) is described.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: July 29, 2014
    Assignee: Apple Inc.
    Inventor: Wayne Carl Westerman
  • Patent number: 8791922
    Abstract: A resistive touch panel is provided. The resistive touch panel includes a first conductive layer and a second conductive layer, and a plurality of electrodes is disposed on the first conductive layer and the second conductive layer. A detection area of the resistive touch panel is separated into at least two sub-detection areas through configuration of the electrodes. Thus, the resistive touch panel can calculate coordinates of a contact point corresponding to each sub-detection area at the same time, so as to achieve functions of detecting multiple touch points at the same time and detecting touch point sliding.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: July 29, 2014
    Assignees: Cal-Comp Electronics & Communications Company Limited, Kinpo Electronics, Inc.
    Inventor: Tsung-Hua Kuo
  • Patent number: 8791923
    Abstract: The disclosure describes a touch device including a touching area having a first edge and a second edge; two reflective lens arrays and two laser source modules which are all disposed at the first edge and the second edge respectively, wherein each laser source module includes a laser diode and a diffractive optical element assembled in front of the laser diode for separating a laser beam projected from the laser diode to a plurality of laser beams with equal magnitude, the laser beams are distributed in a parallel arrangement over the touching area by the reflective lens array; and two receiving devices disposed at the corresponding edges of the first edge and the second edge respectively. The receiving device includes a plurality of sensing units, wherein each sensing unit receives one of the laser beams respectively.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: July 29, 2014
    Assignee: TPK Touch Solutions Inc.
    Inventors: Heng-Yao Chang, Sheng-Pin Su
  • Patent number: 8791924
    Abstract: A distance-measuring device includes a light-emitting/sensing controlling circuit, a light-emitting component, a light-sensing group, a background-calculating circuit, a frequency-adjusting circuit, and a distance-calculating circuit. The light-emitting component emits a detecting light to a measured object. The light-emitting/sensing controlling circuit controls the light-sensing group receiving and accumulating the energy of a reflective light generated by the measured object reflecting the detecting light, so that the distance-calculating circuit can calculate a measured distance between the measured object and the distance-measuring device according the accumulated energy of the light-sensing group. In addition, the distance-measuring device calculates the energy accumulated by the light-sensing group sensing the background light per unit time, by means of the background-calculating circuit.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: July 29, 2014
    Assignee: PixArt Imaging Inc.
    Inventors: En-Feng Hsu, Han-Chi Liu, Chih-Hung Lu, Ming-Tsan Kao
  • Patent number: 8791925
    Abstract: A coordinate input apparatus includes retroreflecting units at two opposite sides of a rectangular-shaped coordinate input effective region, and a plurality of sensor units provided at the two sides. Each of the sensor units includes a light receiving unit for receiving light that reaches the light receiving unit, a light projecting unit for projecting light toward a retroreflecting unit provided at one of the two sides, which opposes the light projecting unit, and a surface light emitting unit for emitting even diffused light from a band-shaped surface. Each of the sensor units simultaneously detects, by the light receiving unit, light that has been projected by the light projecting unit and reflected back by the retroreflecting unit at the side opposing the light projecting unit, and light that has been emitted by surface light emitting units of a plurality of sensor units at the side opposing the light projecting unit.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: July 29, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuyuki Kobayashi, Yuichiro Yoshimura
  • Patent number: 8791926
    Abstract: A projection touch system configured for detecting a position of a touch object and a projection touch method thereof are provided. The projection touch system includes an invisible light source, a projection panel and a light detector. The projection panel includes a transparent plate and a fluorescent film. An invisible light beam emitted by the invisible light source scans back and forth on the projection panel. A first fluorescent light beam and a second fluorescent light beam are emitted from the fluorescent film excited by the invisible light beam. When the touch object is touched to the projection panel, a portion of the invisible light beam is reflected to the fluorescent film, and the second fluorescent light beam is emitted. The light detector detects the second fluorescent light beam relative to the first fluorescent light beam by an intensity level to determine the position of touch object.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: July 29, 2014
    Assignee: Lite-On Technology Corporation
    Inventor: Min-I Hung
  • Patent number: 8791927
    Abstract: A stylus for a portable electronic device includes a main body, a nib, and a lens. The main body defines a chamber in an end, the nib and the lens are connected to the other end of the main body. A space if formed between the nib and the lens. An extending direction of the nib intersects with an extending direction of the lens to form an angle, and the angle is in a range from 0°-90°.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: July 29, 2014
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Zheng Shi, Guo-Wu Jiang
  • Patent number: 8791928
    Abstract: The present invention provides a pixel driving method for a liquid crystal display. The pixel includes a storage capacitor and a liquid crystal capacitor. The pixel driving method includes steps of: providing a common voltage signal to a liquid crystal capacitor, and providing a bias signal to a storage capacitor wherein the bias signal is synchronized with the common voltage signal and the amplitude of the bias signal is larger than that of the common voltage signal.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: July 29, 2014
    Assignee: Hannstar Display Corp.
    Inventors: Po-Yang Chen, Po-Sheng Shih, Tsu-Chiang Chang
  • Patent number: 8791929
    Abstract: The semiconductor device includes a transistor and a capacitor element which is electrically connected to a gate of the transistor. Charge held in the capacitor element according to total voltage of voltage corresponding to the threshold voltage of the transistor and image signal voltage is once discharged through the transistor, so that variation in current flowing in the transistor or mobility of the transistor can be reduced.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: July 29, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 8791930
    Abstract: A contrast ratio improving device includes a controller and a photo detector. A contrast ratio improving method for use with a display panel includes the following steps. Firstly, multiple voltage values are applied to the display panel. Then, the brightness values corresponding to the voltage values applied to the display panel are detected. Afterwards, a voltage value corresponding to a specified value of the brightness values is selected as a peak voltage of the display panel. An image display system is also provided. The image display system includes a display panel and a memory. The memory stores a peak voltage obtained by the contrast ratio improving method.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: July 29, 2014
    Assignee: Innolux Corporation
    Inventors: Jian-xun Jiang, Square Wang
  • Patent number: 8791931
    Abstract: An image display apparatus includes: a display panel including an image display area and a dummy pixel area different from the image display area; an optical sensor detecting light emission luminance of the dummy pixel area on the display panel; and a control unit dividing the image display area on the display panel into a plurality of division areas, allowing pixels within the dummy pixel area to perform light emission to the same degree as the light emission of one or a plurality of pixels within each division area, and correcting luminance or chromaticity of the pixels within each division area based on the light emission luminance of the dummy pixel area detected by the optical sensor.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: July 29, 2014
    Assignee: Sony Corporation
    Inventor: Hirokazu Takuma
  • Patent number: 8791932
    Abstract: A display device includes: an LED control section (4) for carrying out control in which (i) an output luminance of an LED (10) whose measured luminance is deviated from a reference luminance or (ii) output luminances of peripheral LEDs (10) which are provided around the LED (10) is or are corrected, respectively, by using control information of the plurality of LEDs, which control information contains (a) information on measured luminances of the plurality of LEDs, the information being obtained by the plurality of photosensors (11) and (b) positional information of the plurality of LEDs, the positional information being obtained by the plurality of photosensors (11), and a liquid crystal display control section (3) for controlling, based on (i) video signals which have been subjected to the video signal process and are supplied from a video signal processing section (2) and (ii) the control information supplied from the LED control section (4), (a) levels of video signals to be supplied to pixels correspondi
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: July 29, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masafumi Ueno, Hiroyuki Furukawa, Kazuyoshi Yoshiyama, Yasuhiro Ohki, Kenji Takase, Takashi Ishizumi
  • Patent number: 8791933
    Abstract: A method is provided for driving a plasma display panel having parallel first and second electrodes, third electrodes crossing the first and second electrodes, and discharge cells with electrodes crossing mutually in the form of a matrix. The method includes a reset period during which distribution of wall charges in the discharge cells is uniformed, an addressing period during which wall charges are produced in the discharge cells according to display data, and a sustain discharge period during which sustain discharge is induced in discharge cells in which wall charges are produced during the addressing period. The driving method includes during the reset period, in lines defined by the first and second electrodes, applying a first pulse, in which an applied voltage varies with time to induce first discharge, and applying a second pulse in which an applied voltage varies with time to induce second discharge as an erase discharge.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: July 29, 2014
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Noriaki Setoguchi, Shigeharu Asao, Yoshikazu Kanazawa
  • Patent number: 8791934
    Abstract: The invention relates to a method of driving of an electro-optic display having image regions. Each image region has: a first driving state in which a zero voltage, substantially equal to zero, is applied across the image region; and a second driving state in which a non-zero voltage, substantially different from the zero voltage, is applied across the image region. The method of the invention comprises applying: a common voltage signal to a plurality of the image regions; and an actuating voltage signal to one or more selected ones of the plurality of image regions. The method comprises varying both the common voltage signal and the actuating voltage signal when switching the selected regions between the first driving state and the second driving state. The invention further relates to electro-optic display apparatus having image regions and comprising driving circuitry adapted to perform the method of the invention.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: July 29, 2014
    Assignee: Liquavista B.V.
    Inventors: Robert Gerardus Hendrik Boom, Roy Van Dijk, Henricus Petronella Maria Derckx
  • Patent number: 8791935
    Abstract: A direct current (DC)-DC converter for preventing ignition and destruction of an organic electroluminescent display device by not driving the current when a parameter of the organic electroluminescent display device is abnormal, an organic electroluminescent display device including the DC-DC converter, and a method of driving the organic electroluminescent display device.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: July 29, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sung Cheon Park
  • Patent number: 8791936
    Abstract: The present invention relates to a LCD module and a method thereof. The LCD module includes a gate driver, a liquid crystal display panel having a plurality of pixel units, a temperature sensor for generating a temperature sensing signal based on a temperature of the liquid crystal display panel, and a voltage regulator for adjusting scan voltage according to the temperature sensing signal. The gate driver outputs a scan signal with the adjusted scan voltage to the plurality of pixel units. The LCD module can adjust the scan voltage based on a variety of the temperature of the LCD panel to further change current charging the pixel units, shortening a response time period of the LCD module.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: July 29, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Dengxia Zhao, Yu Wu
  • Patent number: 8791937
    Abstract: Provided is an output buffer for a source driver circuit which receives an external buffer input signal and generates a buffer output signal having a predetermined target voltage, the output buffer including: an over-driving controller configured to generate a pair of first internal buffer input signals and a pair of second internal buffer input signals for an over-driving operation, based on a first over-driver enable signal and a second over-driver enable signal, the first and second over-driver signals being provided from an external source, and an output buffer unit configured to: perform the over-driving operation, based on the pair of first internal buffer input signals and the pair of second internal buffer input signals provided from the over-driving controller, and generate: a buffer output signal including a target voltage greater than the predetermined target voltage, or a buffer output signal including a target voltage less than the predetermined target voltage.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: July 29, 2014
    Assignee: Magnachip Semiconductor Ltd.
    Inventor: Kyu-young Chung
  • Patent number: 8791938
    Abstract: An electronic device of the present invention includes an input acceptance section that accepts an input of a command that causes any one of a plurality of operation states to be selected; a function section (342) that has a plurality of operation states that differ in power consumption and that operates in an operation state represented by the command that is input to the input acceptance section of the plurality of operation states; a storage section (16) that pre-stores power consumption values corresponding to the plurality of operation states and a conversion factor, based on which, power consumption is converted into an amount of emitted greenhouse gas; and a control section (15) that reads from the storage section a power consumption value corresponding to an operation state represented by the command that is input to the input acceptance section, multiplies the power consumption value that has been read by the conversion factor, obtains the multiplied result as the amount of the emitted greenhouse gas
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: July 29, 2014
    Assignee: NEC Display Solutions, Ltd.
    Inventors: Takayuki Okada, Takashi Mikuriya
  • Patent number: 8791939
    Abstract: A display device is described. The device includes an active-matrix luminescence panel that has data lines and pixels for determining luminescence of the pixels. Each pixel includes a driving transistor that converts a signal voltage from a data line into a signal current, and a first switch between the data line and the gate of the driving transistor. The device includes a test current generator to supply a test current to one of the data lines, a voltage detector to detect the voltage of one of the data lines, and a controller to control switches, the test current generator and the voltage detector.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: July 29, 2014
    Assignee: Panasonic Corporation
    Inventors: Rie Odawara, Shinya Ono
  • Patent number: 8791940
    Abstract: An apparatus and method for compensating for a black level in order to solve a screen flickering phenomenon and a problem of convergence speed of a black level value. The apparatus for compensating for a black level includes: a black pixel average value extraction unit averaging black pixel values of a current frame to determine a black pixel average value; a luminance value extraction unit extracting a luminance value from an analog gain and concentration time information of an image sensor; a black level extraction unit calculating a frame weight by using the luminance value and acquiring a black level value of a current frame by using the frame weight, the black pixel average value, and a black level value of a previous frame; and a black level compensation unit compensating for valid pixel values of the current frame by using the black level value of the current frame.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: July 29, 2014
    Assignee: SK Hynix Inc.
    Inventor: Dong Seob Song
  • Patent number: 8791941
    Abstract: The present invention is directed to systems and methods for controlling 2-D to 3-D image conversion. In one embodiment, a mask is generated from an object model of the image. The mask is then used to from a 2-D mesh which is then converted to a 3-D volume mesh. The 3-D volume mesh is then used to produce 3-D image conversion.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: July 29, 2014
    Assignee: Intellectual Discovery Co., Ltd.
    Inventors: Steven Birtwistle, Natascha Wallner, Gregory R. Keech, Christopher Levi Simmons, David A. Spooner, Danny D. Lowe
  • Patent number: 8791942
    Abstract: Disclosed herein are methods, apparatus, and computer program programs that use 2D drawings of a cartoon in different views to automatically construct rotated views of the subject cartoon. Embodiments involve a novel structure, the 2.5D cartoon model, which can generate plausible renderings of the cartoon in any view. Two or more input drawings can be leveraged to construct a 2.5D cartoon model that supports full 3D rotation. Unlike a 3D model, however, renderings produced by a 2.5D cartoon model retain the 2D nature and hand-drawn appearance of the input drawings, and support a wide range of 2D stylizations and shapes that would be impossible with a 3D model.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: July 29, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: Alec Rivers, Frederic Durand
  • Patent number: 8791943
    Abstract: An image processing device includes a display portion which displays an image stored in a recording medium; an information output portion which is connected to a display device displaying a plane image or a stereoscopic image to output image information for displaying the image, which is stored in the recording medium, on the display device; and a control portion which performs the control of displaying the image stored in the recording medium and operational support information for supporting the display operation of the image on the display portion and the display device, and performs the control so that, when the image which is the display target is the stereoscopic image, the operational support information is displayed on the display portion and the image which is the display target is not displayed on the display portion.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: July 29, 2014
    Assignee: Sony Corporation
    Inventor: Junichiro Goto
  • Patent number: 8791944
    Abstract: The present invention relates to a mobile terminal including a touchscreen configured to display content on a screen and a controller controlling operations related to the content. The touchscreen receives a touch input comprising a touch of at least one first part of the content according to a first touch scheme and receives a touch input comprising a touch of at least one second part of the content according to a second touch scheme. If the touch according to the second touch scheme is altered, the controller controls an operation of the content according to the altered touch of the second touch scheme.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: July 29, 2014
    Assignee: LG Electronics Inc.
    Inventor: Seonhwi Cho