Patents Examined by Joseph Fox
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Patent number: 9299277Abstract: A display device includes a display panel for displaying an image, a backlight unit positioned in the rear of the display panel, and a back cover positioned in the rear of the backlight unit. The backlight unit includes a substrate part including a plurality of substrates, and a plurality of light sources disposed on each of the plurality of substrates. A transverse width and a longitudinal width of at least one of the plurality of substrates are different from a transverse width and a longitudinal width of at least one of the remaining substrates, respectively.Type: GrantFiled: November 30, 2012Date of Patent: March 29, 2016Assignee: LG ELECTRONICS INC.Inventors: Bupsung Jung, Hoon Hur
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Patent number: 9256328Abstract: There are a touch input sensing device and a touch input sensing method. The touch input sensing device includes: a plurality of sensing electrodes; and a controller obtaining sensing signals generated from the plurality of sensing electrodes through a plurality of sensing channels electrically connected to the plurality of sensing electrodes, wherein the controller calculates a difference value between the sensing signals obtained from the plurality of sensing channels connected to the mutually adjacent sensing electrodes among the plurality of sensing electrodes to determine a touch input. A weighting value is assigned to a difference value between sensing signals obtained from mutually adjacent sensing electrodes, based on which the coordinates, or the like, of a touch input are determined, thus significantly reducing the influence of noise and accurately determining a touch input.Type: GrantFiled: December 21, 2011Date of Patent: February 9, 2016Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Yong Il Kwon, Sang Ho Lee, Gyung Hee Hong, Tah Joon Park
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Patent number: 9244604Abstract: A touch sensor on a device is configured to accept user input in the form of touches. Control areas on the touch sensor may be designated to correspond to keys on a keyboard or other commands. These control areas may be arranged on either side of the touch sensor to allow the user to activate control areas with their thumbs while holding the device. Size and spacing of the keys may vary dynamically in response to environmental conditions, user interactions, and so forth. Thus, the area of a control on the touch sensor may be larger when operated in a high vibration or motion environment, such as on a train, walking, and so forth. Additionally or alternatively, the position of control areas may dynamically change to adjust to the user.Type: GrantFiled: November 5, 2010Date of Patent: January 26, 2016Assignee: Amazon Technologies, Inc.Inventors: Hannah Rebecca Lewbel, Vijay Manyam, Eric Allan MacIntosh
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Patent number: 9230489Abstract: An object of the invention is to suppress degradation in image quality of a liquid crystal display device which performs display by field sequential method and to reduce power consumption of a backlight. The highest brightness of a first color light in a pixel region is detected. Gamma correction is performed so that transmittance of a pixel of the region displaying the highest brightness of the first color light is set to maximum and transmittance of other pixel of the region is decreased in accordance with lowering of the first color light intensity, and the region is irradiated with the highest brightness of the first color light. Similarly, a second color light is irradiated in another region concurrently with irradiation of the first color, whereby input of an image signal and lighting of the backlight are performed simultaneously in every region of the pixel portion.Type: GrantFiled: June 23, 2011Date of Patent: January 5, 2016Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yoshiharu Hirakata, Jun Koyama
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Patent number: 9196210Abstract: The present invention discloses a driving module for a liquid crystal display device. The driving module includes a data line signal processing unit, for generating a plurality of data driving signals, a scan line signal processing unit, for generating a plurality of gate driving signals, and a control unit, for controlling the data line signal processing unit and the gate line signal processing unit, such that a plurality of sub-pixels corresponding to a data line are with different charging orders in different frames, or are charged with different charging periods in a same frame.Type: GrantFiled: June 10, 2010Date of Patent: November 24, 2015Assignee: NOVATEK Microelectronics Corp.Inventors: Yu-Pin Chang, Chih-Peng Hsia, Tsung-Yin Yu
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Patent number: 9189829Abstract: Disclosed herein is A head mounted display including: (A) an eyeglasses frame-like frame to be mounted to an observer's head; (B) an image display device; (C) an image sensing device mounted to the frame; and (D) a correction section, wherein the image display device includes (B-1) an image generating device, and (B-2) see-through type light guide section which is mounted to the image generating device, on which beams emitted from the image generating device are incident, through which the beams are guided, and from which the beams are emitted toward an observer's pupil.Type: GrantFiled: January 20, 2014Date of Patent: November 17, 2015Assignee: SONY CORPORATIONInventors: Akihiro Komori, Hiroshi Mukawa
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Patent number: 9183795Abstract: The present invention relates to a liquid crystal display device which can reduce a chip size and improves an electrostatic discharge capability. The liquid crystal display device includes a liquid crystal panel for displaying a picture, and a driving circuit unit for driving the liquid crystal panel, wherein the driving circuit unit includes an input/output unit having a plurality of input units for receiving signals from an outside and a plurality of output units for forwarding signals to an outside, a logic unit having a plurality of logical cells each having a plurality of digital logical devices for receiving or forwarding a signal through the input/output unit, and an electrostatic shielding unit for protecting the digital logical devices from an external static electricity, wherein some of elements of the electrostatic shielding unit are formed in spaces among the logical cells.Type: GrantFiled: November 9, 2010Date of Patent: November 10, 2015Assignee: LG Display Co., Ltd.Inventor: Jae-hun Jun
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Patent number: 9165522Abstract: The present invention relates to a method of extending a pixel gray scale. The secondary gray scale levels with different charging times and the same gray scale voltage are formed by controlling a charging time of the gray scale voltage of every primary gray scale level and refining the level, wherein, the gray scale voltage of the every secondary gray scale level is the same as that of the corresponding primary gray scale level, and its charging time corresponds to the secondary gray scale level. The primary gray scale level of the display pixel of the liquid crystal panel is extended by using this method and the disadvantage of the imperfect display brought forward by the control method using frame rate in the prior art is overcome. The present invention further provides a drive method of controlling the pixel charging time and a drive apparatus thereof, which realizes the pixel gray scale extension by controlling the charging time of the pixel capacitance.Type: GrantFiled: May 30, 2008Date of Patent: October 20, 2015Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Yue Ding
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Patent number: 9117400Abstract: A system for maintaining a substantially constant display white point over an extended period of operation of a color display formed by an array of multiple pixels in which each of the pixels includes multiple subpixels having different colors, and each of the subpixels includes a light emissive device. The display is generated by energizing the subpixels of successively selected pixels, and the color of each selected pixel is controlled by the relatives levels of energization of the subpixels in the selected pixel. The degradation behavior of the subpixels in each pixel is determined, and the relative levels of energization of the subpixels in each pixel are adjusted to adjust the brightness shares of the subpixels to compensate for the degradation behavior of the subpixels. The brightness shares are preferably adjusted to maintain a substantially constant display white point.Type: GrantFiled: June 16, 2010Date of Patent: August 25, 2015Assignee: Ignis Innovation Inc.Inventors: G. Reza Chaji, Joseph Marcel Dionne, Abbas Hormati, Tong Liu, Stefan Alexander, Arokia Nathan
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Patent number: 9111485Abstract: A system for maintaining a substantially constant display white point over an extended period of operation of a color display formed by an array of multiple pixels in which each of the pixels includes multiple subpixels having different colors, and each of the subpixels includes a light emissive device. The display is generated by energizing the subpixels of successively selected pixels, and the color of each selected pixel is controlled by the relatives levels of energization of the subpixels in the selected pixel. The degradation behavior of the subpixels in each pixel is determined, and the relative levels of energization of the subpixels in each pixel are adjusted to adjust the brightness shares of the subpixels to compensate for the degradation behavior of the subpixels. The brightness shares are preferably adjusted to maintain a substantially constant display white point.Type: GrantFiled: March 16, 2013Date of Patent: August 18, 2015Assignee: Ignis Innovation Inc.Inventors: Gholamreza Chaji, Joseph Marcel Dionne, Abbas Hormati, Tong Liu, Stefan Alexander, Arokia Nathan
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Patent number: 9081489Abstract: A touch input method includes receiving a touch input signal corresponding to a finger from a touch-sensing device, detecting a contact area between the touch-sensing area and the finger corresponding to the touch input signal received, and if a curvature threshold value below which the contact area is recognizable as a circle, recognizing the finger corresponding to the touch input signal received as a thumb.Type: GrantFiled: November 5, 2010Date of Patent: July 14, 2015Assignee: Samsung Electronics Co., LtdInventor: Hyung-jin Seo
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Patent number: 9064472Abstract: A liquid crystal display (“LCD”) has first, second, and third pixels adjacent to one another in a column direction. The LCD includes a first gate line connected to each of the second and third pixels in common, a capacitance electrode line connected to each of the first and second pixels in common, a first data line connected to the second pixel, and a second data line connected to the first and third pixels.Type: GrantFiled: June 9, 2009Date of Patent: June 23, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yoon-Jang Kim, Seong-Young Lee, Yeong-Keun Kwon, Kee-Bum Park, Kyung-Ho Park
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Patent number: 9024914Abstract: In a method of detecting a touch position, light is emitted. A plurality of light beams derived from the emitted light is received. The light beams have different paths from each other. The light beams are partially reflected according to a touch. The touch position is detected based on an amount of light in the received light beams. According to the present invention, the touch positions of several touching elements may be individually detected.Type: GrantFiled: November 5, 2010Date of Patent: May 5, 2015Assignee: Samsung Display Co., Ltd.Inventor: Guk-Hyun Kim
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Patent number: 9013444Abstract: In one embodiment, a method includes dividing a first amount of charge between a capacitance of a touch sensor and a compensation capacitor. The division of the first amount of charge results in a first voltage at an input node. The method also includes isolating the capacitance of the touch sensor from the compensation capacitor; and applying a reference voltage at the input node and a supply voltage at the compensation capacitor. The application of the reference voltage at the input node induces a second amount of charge proportional to a difference between the first voltage and the reference voltage on an integration capacitor. The method also includes determining a first difference between the first voltage and the reference voltage based on a second amount of charge on the integration capacitor; and determining whether a touch input to the touch sensor has occurred based on the first difference.Type: GrantFiled: May 18, 2012Date of Patent: April 21, 2015Assignee: Atmel CorporationInventors: Ingar Hanssen, Rian Whelan
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Patent number: 9001099Abstract: An image display includes: a display panel in which a plurality of pixels including first display elements, respectively, are two-dimensionally arranged; a drive section deriving, from a plurality of pieces of still image data and display times of a plurality of still images based on the plurality of pieces of still image data, an accumulated display time of each first display element in each still image data when the plurality of still images are sequentially displayed from one to another, and deriving, from the accumulated display time of each first display element derived in each still image data and degradation characteristic data stored in a memory section, a correction amount of each still image data in each pixel, and further sequentially displaying a plurality of still images based on a plurality of pieces of still image data corrected with use of the obtained correction amount from one to another.Type: GrantFiled: November 10, 2010Date of Patent: April 7, 2015Assignee: Sony CorporationInventors: Munenori Ono, Katsuhide Uchino, Hiroshi Hasegawa, Kazuo Nakamura
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Patent number: 8988334Abstract: Present techniques involve methods and systems of inversion patterns for pixels in a display. Inversion techniques involve driving image signals having a first polarity to data lines of a pixel matrix during a first time period and driving image signals having an opposite polarity to the data lines during a second time period. In some embodiments, the pixels may be configured to have electrodes having only two finger electrodes, thus widening the distance between electrodes and decreasing the susceptibility for crosstalk between pixels. In some embodiments, horizontal cross-talk of electromagnetic fields between pixels may be further reduced by configuring the data line driving scheme such that voltage polarity is flipped for the pixels along every two, three, or more data line columns. Furthermore, a Z inversion pattern may be employed to reduce the occurrence of undesirable display artifacts.Type: GrantFiled: November 8, 2010Date of Patent: March 24, 2015Assignee: Apple Inc.Inventors: Zhibing Ge, Yongman Lee, Shih Chang Chang, Cheng Chen, Hopil Bae, Ming Xu, Shawn Robert Gettemy, Wei H. Yao
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Patent number: 8982099Abstract: It is an object to provide a touch panel which includes an A/D converter circuit and has a function of image shooting with high resolution and high-level gray scale and at high operation speed. A touch panel includes a plurality of pixels each provided with a display element and a photo sensor, an A/D converter to which a first potential is applied from a photo sensor, and a reading circuit. The A/D converter includes an oscillation circuit which changes the oscillating frequency of a first signal to be generated in accordance with the first potential and stops oscillating when a second potential is applied thereto from the reading circuit, and a counter circuit which generates a second signal having a discrete value determined in accordance with the oscillating frequency.Type: GrantFiled: June 15, 2010Date of Patent: March 17, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Yoshiyuki Kurokawa
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Patent number: 8970637Abstract: A frame rate control method capable of enhancing picture-quality is disclosed. The frame rate control method generates red, green, and blue frame rate control signals by frame-rate-modulating red, green, and blue frame rate control patterns on the basis of lower-bit red, green, and blue data. The lower-bit red, green, and blue data are extracted from red, green, and blue data. The red, green and blue frame rate control patterns are obtained through a process of shifting basic frame rate control patterns by different sub-pixel numbers in one direction. The basic frame rate control patterns are established for a plurality of frames.Type: GrantFiled: November 17, 2009Date of Patent: March 3, 2015Assignee: LG Display Co., Ltd.Inventors: Sung Joon Moon, Sang Hoon Lee, Kyu Ha Oh
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Patent number: 8952927Abstract: In one embodiment, a method includes dividing a first amount of charge between a capacitance of a touch sensor and a compensation capacitor. The division of the first amount of charge results in a first voltage at an input node. The method also includes applying a reference voltage at the input node. The application of the reference voltage at the input node induces a second amount of charge proportional to a difference between the first voltage and the reference voltage on an integration capacitor. The method also includes determining a first difference between the first voltage and the reference voltage based on a second amount of charge on the integration capacitor; and determining whether a touch input to the touch sensor has occurred based on the first difference.Type: GrantFiled: May 18, 2012Date of Patent: February 10, 2015Assignee: Atmel CorporationInventors: Ingar Hanssen, Rian Whelan
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Patent number: 8941621Abstract: In order to simultaneously carry out, at a smaller sensor density, (i) detection of color information (recognition of a color) of visible light which enters a detection target surface and (ii) detection of an input position of the visible light, a liquid-crystal panel (20) included in a liquid-crystal display device of the present invention has an area sensor function of detecting color information and an input position of visible light by sensing an input image of the visible light on a panel surface. The liquid-crystal panel (20) (position detecting section) includes (i) a yellow sensor (31Y) including a light sensor element (30) which senses an intensity of green light and red light from among three primary color lights and (ii) a cyan sensor (31C) including a light sensor element (30) which senses an intensity of blue light and green light from among the three primary color lights.Type: GrantFiled: June 1, 2010Date of Patent: January 27, 2015Assignee: Sharp Kabushiki KaishaInventors: Shinichi Miyazaki, Kengo Takahama