Patents Examined by Daniel Duong
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Patent number: 9824644Abstract: According to one embodiment, a display element includes a plurality of scanning lines and a plurality of signal lines orthogonal to the plurality of scanning lines. A pixel of the display element includes sub-pixels of a plurality of colors to be respectively formed in the regions surrounded by the scanning lines and the signal lines. The size of a sub-pixel of a predetermined color among the plurality of colors is larger than the sizes of the sub-pixels of the other colors. Switching elements of the display element are connected to the scanning lines and the signal lines and drive the sub-pixels, respectively, and are formed into different shapes corresponding to the sub-pixels with different sizes.Type: GrantFiled: November 13, 2014Date of Patent: November 21, 2017Assignee: Japan Display Inc.Inventor: Masato Nakamura
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Patent number: 9792863Abstract: According to one embodiment, a display element includes a plurality of scanning lines and a plurality of signal lines orthogonal to the plurality of scanning lines. A pixel of the display element includes sub-pixels of a plurality of colors to be respectively formed in the regions surrounded by the scanning lines and the signal lines. The size of a sub-pixel of a predetermined color among the plurality of colors is larger than the sizes of the sub-pixels of the other colors. Switching elements of the display element are connected to the scanning lines and the signal lines and drive the sub-pixels, respectively, and are formed into different shapes corresponding to the sub-pixels with different sizes.Type: GrantFiled: November 13, 2014Date of Patent: October 17, 2017Assignee: Japan Display Inc.Inventor: Masato Nakamura
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Patent number: 9778769Abstract: A driving method for a touch screen is disclosed. The touch screen includes a display panel, a touch panel, and a control circuit. Each of a plurality of display cycles includes at least two first time sequences and at least two second time sequences. The method includes, during each of the first time sequences, generating a plurality of scanning control signals for a display scanning line driving circuit, and, in response to the scanning control signals, delivering a plurality of scanning signals to different display scanning lines. The method also includes, during each of the second time sequences, generating a plurality of scanning control signals for the touch scanning line driving circuit, and, in response to the scanning control signals for the touch scanning line driving circuit, sequentially delivering scanning signals to all of the touch scanning lines of the touch panel.Type: GrantFiled: October 25, 2013Date of Patent: October 3, 2017Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Kang Yang, Jun Ma, Tianyi Wu
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Patent number: 9760156Abstract: A display apparatus, a display system having a plurality of display apparatuses, and a method for controlling the display system are disclosed in which a first voltage of a first transmission channel of a first display apparatus is changed according to transition from a power saving state to a wake-up state and a second display apparatus electrically connected to the first display apparatus detects variation of voltage of a first reception channel corresponding to voltage variation of the first transmission channel and transitions from a power saving state to a wake-up state according to the detection.Type: GrantFiled: July 7, 2015Date of Patent: September 12, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jung Keun Kim, Chang Won Lee
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Patent number: 9754548Abstract: A display device includes a display panel including pixels, gate lines electrically connected to the pixels, and data lines electrically connected to the pixels, a gate driver which sequentially outputs gate voltages to the gate lines, and a data driver which receives at least a portion of the gate voltages from the display panel as a feedback voltage, determines an output timing of data voltages based on the feedback voltage, and outputs the data voltages to the data lines based on the output timing.Type: GrantFiled: July 7, 2015Date of Patent: September 5, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Sang Wook Park
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Patent number: 9715861Abstract: A display device includes a display panel including gate lines which extends in a first direction, data lines which extends in a second direction, and sub-pixels connected to corresponding gate and data lines, a gate driver configured to drive the gate lines, a data driver configured to apply a gray-scale voltage to the data lines, and a timing controller configured to generate and apply control signals to the gate and data drivers, where a unit pixel of the display panel is defined by an even number of adjacent sub-pixels among the sub-pixels, each of the data lines is connected to corresponding sub-pixels of the sub-pixels, the data driver inverts a polarity of the gray-scale voltage every two data lines, and two adjacent sub-pixels in the unit pixel are applied with the gray-scale voltages having different polarities.Type: GrantFiled: July 3, 2013Date of Patent: July 25, 2017Assignee: SAMSUNG DISPLAY CO., LTDInventors: Jinpil Kim, Jai-Hyun Koh, Namjae Lim, Ik Soo Lee, Heendol Kim, Se Ah Kwon, Kisoo Park, Jonghak Hwang
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Patent number: 9699435Abstract: The invention discloses a liquid crystal driving method and apparatus for black frame insertion of an image, and a liquid crystal display device. The method includes, in a black frame insertion period after the frame period ends, sending, by a timing controller, a row of black image data to a register of a source driver; and in the black frame insertion period, maintaining, by the register, the row of black image data being output until the black frame insertion period ends, so as to enable the row of black image data to refresh each row of liquid crystal cells. Accordingly, the complexity of driving processes and the data calculations in the black frame insertion are greatly reduced.Type: GrantFiled: December 31, 2013Date of Patent: July 4, 2017Assignees: HISENSE HIVIEW TECH CO., LTD, HISENSE USA CORPORATIONInventors: Jie Yang, Shunming Huang
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Patent number: 9691337Abstract: A digital gamma correction part includes a memory and a selector. The memory is configured to store a basic gamma reference data, a first compensated gamma reference data and a second compensated gamma reference data, where respective data of the first compensated gamma reference data are greater than respective data of the basic gamma reference data, and respective data of the second compensated gamma reference data are less than respective data of the basic gamma reference data. The selector is configured to receive a luminance data determined based on a luminance of a display panel, and to output a gamma reference data by selecting one from the basic gamma reference data, the first compensated gamma reference data and the second compensated gamma reference data based on the luminance data and a gamma converted reference range.Type: GrantFiled: August 13, 2014Date of Patent: June 27, 2017Assignee: Samsung Display Co., Ltd.Inventors: Ho-In Kim, Young-Sun Kwak, Jun-Ho Hwang
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Patent number: 9639209Abstract: An optical touch system includes two optical sensing modules and a processing module. The optical sensing module includes a mounting base and a light sensing device. The mounting base has an alignment structure and is disposed at a corner of a touch area by aligning the alignment structure with the profile of the corner. The light sensing device is disposed on the mounting base toward the touch area. The processing module receives signals from the two optical sensing modules to generate coordinates relative to a touch performed on the touch area. A touch display system using the optical touch system further includes a displaying device. The processing module of the touch display system also controls the displaying device to display an image on a screen according to the coordinates; therein, the screen thereon defines the touch area.Type: GrantFiled: November 4, 2013Date of Patent: May 2, 2017Assignee: Wistron CorporationInventors: Kou-Hsien Lu, Yu-Yen Chen, Po-Liang Huang, Chia-Jui Liu
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Patent number: 9626910Abstract: A pixel driver circuit including a first transistor, second transistor, third transistor, fourth transistor, first capacitor, second capacitor, and organic light-emitting diode is provided. A drain of the second transistor is coupled to a cathode of the organic light-emitting diode, and an anode of the organic light-emitting diode is couple to a power line. A source of the second transistor is respectively coupled to drains of the third transistor and the fourth transistor. A source of the third transistor is coupled to a gate of the second transistor, and gates of the third transistor and the fourth transistor receives a compensation control voltage. A source of the fourth transistor is grounded. A shift of the threshold voltage of an AMOLED can be compensated in an embodiment of the present invention, whereby uniformity between a picture and grayscales of the organic light-emitting diodes can be improved.Type: GrantFiled: May 13, 2014Date of Patent: April 18, 2017Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Xiangyang Xu
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Patent number: 9607545Abstract: The present invention discloses a pixel compensation circuit and method for an organic light emitting display. The circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a driving transistor, a capacitor, and an organic light emitting element. The first transistor transmits a data signal to a first plate of the capacitor; the second transistor applies a reference voltage to the first plate of the capacitor; the driving transistor determines a magnitude of a driving current; the third transistor establishes a connection between the gate electrode and the drain electrode of the driving transistor; the fourth transistor passes the driving current from the driving transistor to the organic light emitting element; and the organic light emitting element emits light in response to the driving current.Type: GrantFiled: August 18, 2014Date of Patent: March 28, 2017Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Dong Qian, Hanyu Gu, Tong Zhang
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Patent number: 9575649Abstract: Left- and right-click buttons of a virtual touchpad each have two modes, a “click” mode and an “on/off” mode. In “click” mode, touching a finger to the left- or right-click button triggers a mouse button down event while releasing a finger from the button triggers a mouse button up event. In “on/off” mode, the left- and right-click buttons each have two states, “on” and “off.” If the current state of the left- or right-click button is “off,” then touching the button triggers the mouse button down event, while releasing the button changes the state of the button to “on” but does not trigger any mouse events. Conversely, if the current state of the left- or right-click button is “on,” then touching the button does not trigger any mouse events, but releasing the button thereafter changes the state of the button to “off” and triggers the mouse button up event.Type: GrantFiled: April 25, 2013Date of Patent: February 21, 2017Assignee: VMware, Inc.Inventors: Yuping Wei, Yueting Zhange, Wenlong Shao
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Patent number: 9568786Abstract: An array substrate, a liquid crystal display and a control method thereof are disclosed. The array substrate includes scanning lines, data lines, pixel units, and common lines. Each common line is disposed along a row of pixel units. The array substrate also includes a common voltage supply line, and dual-channel selection switches each having an output terminal connected to a set of common lines, two input terminals connected to a common voltage high level supply line and a common voltage low level supply line respectively to selectively apply a high level or a low level to the common lines, thereby avoiding delay of the common voltage Vcom and the Vcom drift during a display mode and improving the display effect for an image.Type: GrantFiled: December 20, 2013Date of Patent: February 14, 2017Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Chengfeng Zhang, Yuan Li, Jinjin Yang
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Patent number: 9558697Abstract: According to one embodiment, a display element includes a plurality of scanning lines and a plurality of signal lines. Into the plurality of signal lines, signals of different polarities are alternately input, respectively. In the respective regions surrounded by the scanning lines and the signal lines, a first pixel and a second pixel are arrayed. Along the scanning line, two each of the first pixels and the second pixels are provided, and the two first pixels or the two second pixels are arrayed so as to be juxtaposed to each other. Along the signal line, the first pixel and the second pixel are arrayed alternately.Type: GrantFiled: November 13, 2014Date of Patent: January 31, 2017Assignee: Japan Display Inc.Inventor: Masakatsu Kitani
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Patent number: 9548035Abstract: The present invention provides a liquid crystal display device, a pixel structure and a driving method. The first scanning line of the first scanning line transmits a scanning signal of the first switching unit, charging the pixel electrode, after the charge, when the pixel electrode is in the state of holding power, the second scanning line transmits the second scanning signal to turn on the second switching unit, the common electrode line provides the common voltage to the pixel electrode, in order to rise the pixel electrode voltage to the common voltage. Through the above ways, on one hand the present invention can ensure the charging time of the pixel electrode and the resolution of the liquid crystal display device, on the other hand inserting the black image, achieving the inserting black image technique, reducing the 3D cross talk.Type: GrantFiled: October 23, 2013Date of Patent: January 17, 2017Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Cheng-hung Chen, Jiali Jiang
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Patent number: 9536497Abstract: The present invention discloses a Gamma voltage driving circuit, which comprises a voltage dividing resistor string, which comprises 2n resistors connected in series sequentially, used to divide a reference voltage into 2n Gamma voltages; wherein, n is an integer not less than 1; a reference voltage module, which provides the reference voltage for the voltage dividing resistor string; a voltage selecting module, which is used to selectively output one of the 2n Gamma voltages.Type: GrantFiled: December 9, 2013Date of Patent: January 3, 2017Assignee: Shenzhen China Star Optoelectronics Technology, Co., LtdInventors: Hua Zhang, Xueliang Yang
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Patent number: 9524668Abstract: An AMOLED driving circuit, a driving method and a display device, wherein a control unit is connected to a data line and a control line, and is connected to a driving unit via first, second and third nodes; a charging unit is connected to the driving unit via the first node, and is connected to a first power source; the driving unit is connected to one end of a light emitting device, and is connected to the first power source; the other end of the light emitting device is connected to a second power source. The control unit controls a current so as to charge the charging unit through the driving unit, and controls the charging unit so as to supply a voltage to the driving unit through the first node, so that the driving unit is driven by the voltage and drives the light emitting device to emit light.Type: GrantFiled: October 11, 2013Date of Patent: December 20, 2016Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Wen Tan, Xiaojing Qi
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Patent number: 9495022Abstract: A method and apparatus for detecting by a digitizer an application of an electronic pen on or within a predetermined distance from a screen of an electronic device, and includes compensating coordinates of an electronic pen relative to screen. At least one magnetic field is detected that is produced by the electronic pen and that has a different central axis each other The digitizer determines whether the electronic pen is inclined based on a number of detected magnetic fields. A determination is made whether to apply a compensation value for compensating coordinates of the electronic pen based on determining inclination of the electronic pen. The present invention advantageously permits exact recognition of coordinates of the electronic pen whether then pen is inclined or not by performing the coordinate compensation taking into account the inclination of the electronic pen and the inclined direction.Type: GrantFiled: July 2, 2013Date of Patent: November 15, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Je-Hyun Son, Young-Jae Ko, Min-Seok Kim, Sang-Ryul Park, Ju-Gab Lee
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Patent number: 9460673Abstract: A liquid crystal display (LCD) panel includes a plurality of pixels, scan lines, data lines crisscrossing with the scan lines, a data driving unit that drives the data lines, an overvoltage driving unit coupled to the data driving unit, a data analysis unit coupled to the overvoltage driving unit and reading gray level of each of sub-pixels, an original overvoltage driving table, and a first overvoltage driving table. Each of the pixels belonging to a same column receives data of a same data line, and each of the pixels includes three sub-pixels controlled by three adjacent scan lines one by one. The original overvoltage driving table and the first overvoltage driving table are coupled to the data analysis unit.Type: GrantFiled: August 1, 2013Date of Patent: October 4, 2016Inventors: Jiang Zhu, Zuomin Liao, Bing Hab
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Patent number: 9449545Abstract: A method of reducing a time for switching a gate line driving signal of display device having plural gate lines from a level that is less than a full gate-on level to the gate-on level is disclosed. The method may include: during a gate line pre-charging period of a respective gate line, causing the gate line driving signal to be at the full gate-on level; during a corresponding gate line main-charging period that follows the pre-charging period, causing the gate line driving signal of to be at the full gate-on level; and during an interposed period that is interposed between the gate line pre-charging period and its corresponding gate line main-charging period, causing the gate line driving signal to be at an intermediate level that is between the full gate-on level and an opposed gate-off level.Type: GrantFiled: January 22, 2014Date of Patent: September 20, 2016Assignee: Samsung Display Co., Ltd.Inventors: Ki Hyun Pyun, Yun Mi Kim, Min Young Park, Sung-Jun Kim, Ju Hyun Kim, Yong Jae Lee, Kyung-Hwa Lim