Display Elements Arranged In Matrix (e.g., Rows And Columns) Patents (Class 345/55)
  • Patent number: 8547300
    Abstract: The present invention relates to a light emitting display, and display panel and driving method thereof. The display panel includes a plurality of data lines for transmitting a data signal, a plurality of scan lines for transmitting a selection signal, and a plurality of pixels coupled to the data lines and the scan lines. The pixel includes at least two emitters for emitting different colors from each other in response to an applied current, and a driver for receiving the data signal while the selection signal is applied and outputting a first current corresponding to the data signal. The driver outputs the first current to at least the first and second emitters for emitting substantially the same color among the emitters formed in the pixels.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: October 1, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won-Kyu Kwak, Jin-Tae Jeong, Choon-Yul Oh
  • Patent number: 8547316
    Abstract: A display apparatus includes a display panel, a panel substrate including a data line driver, a controller connected to the panel substrate, and a connection unit provided in the panel substrate. The controller selects M signal lines from N signal lines (M is a natural number satisfying M?N) in accordance with a frame rate of a video data, and transmits M-phase video data to the panel substrate via the selected M signal lines. The data line driver controls the switching circuits of the connection unit in accordance with the frame rate of the video data to connect the M signal lines via which the video data is transmitted, to the data lines, and sequentially selects the M data lines to supply each piece of the video data transmitted via the M signal lines to each pixel connected to the selected M data lines.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: October 1, 2013
    Assignee: Sony Corporation
    Inventors: Yusuke Doi, Tomoro Yoshinaga, Naoki Ando, Seisan Hoshimoto, Kouji Tada, Tomoaki Kichimi, Koichi Katagawa
  • Patent number: 8547297
    Abstract: In an exemplary embodiment, the color resolution of a first image display screen is increased by assembling the first display screen with a second image display screen in an overlaid manner. Transmissive color filter elements are provided associated with addressable sub-pixels of the display screens. A first set of sub-pixels of the first screen and a second set of sub-pixels of the second screen are cooperatively addressed to display an image pixel of the display assembly, where the first set of sub-pixels addressed is spatially offset from the second set of sub-pixels addressed along the planar surfaces of the display screens. The exemplary display assembly formed by the display screens thereby enables the use of more than three colors to define a broadened color space relative to that defined by the display screens separately.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: October 1, 2013
    Assignee: 3-D Virtual Lens Technologies, LLC
    Inventors: Reuben Hoppenstein, Eric Rosenthal
  • Patent number: 8542337
    Abstract: An embodiment of the invention provides a pixel structure of an active matrix organic light emitting display comprising a gate line, a common electrode line, a signal line, a power line, a first thin film transistor which is used as an addressing element, and a second thin film transistor which controls the organic light emitting display. A short-circuit-ring structure is connected between the common electrode line and the signal line and the short-circuit-ring structure communicates the signal line and the common electrode line in the case where a large current flows.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: September 24, 2013
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventor: Mi Zhang
  • Patent number: 8542168
    Abstract: The present invention provides a display method realizing reduction in a moving picture blurring by forming one frame by two fields of different luminance, in which increase in an unapplied voltage due to shortening of data voltage write time is suppressed. A gate voltage is applied in a light field for a period of time which is twice as long as scan line selection time, thereby decreasing an unapplied voltage. On the other hand, a gate voltage is applied normally in a dark field for the scan line selection time, so that the case where the unapplied voltage increases is eliminated. As a result, an image with high reproducibility can be obtained.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: September 24, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Ikuko Mori, Kikuo Ono
  • Patent number: 8542161
    Abstract: A display device includes a substrate, gate lines, data lines, gate tracking lines, and dummy gate tracking lines. The gate lines and the data lines are arranged perpendicularly. Each gate tracking line is disposed between one parts of two adjacent data lines, and substantially parallel to the data lines. Each dummy gate tracking line is electrically disconnected to the gate lines, disposed between other parts of two adjacent data lines, and substantially parallel to the data lines.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: September 24, 2013
    Assignee: AU Optronics Corp.
    Inventors: Yi-Chen Chiang, Yu-Cheng Chen
  • Patent number: 8542162
    Abstract: Provided are a shift register unit, a gate drive circuit, and a display apparatus. The shift register unit comprises: input module for inputting first clock signal, second clock signal, frame start signal, high voltage signal, and low voltage signal, first clock signal is identical with phase-inverted signal of second clock signal within one frame; a processing module comprising multiple TFTs, for generating gate drive signal according to the first clock signal, the second clock signal, and the frame start signal, and configuring positive feedback of voltage changes between first node and second node formed by the TFTs to cut off transient DC path formed by high voltage signal input terminal, low voltage signal input terminal, and at least one TFT in time; output module for sending the gate drive signal. The present disclosure decreases the transient current, and reduces the power consumption of the shift register unit.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: September 24, 2013
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Zhongyuan Wu, Liye Duan
  • Publication number: 20130241905
    Abstract: A stereoscopic display device is disclosed. The stereoscopy display device includes pixels arranged in rows and columns. The pixels are divided into pixel groups, each including a plurality of adjacent rows. Interference prevention patterns may be located between the pixel groups. Phase delay layers are disposed on the interference prevention patterns and have different phases. At least one storage electrode line may extend between the pixels in a direction of the rows. The stereoscopic display device prevents interference between left and right-eye images and has high luminance.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 19, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Duk-Sung KIM, Young-Jae TAK
  • Publication number: 20130241922
    Abstract: A method of displaying a three-dimensional (ā€œ3Dā€) image includes displaying a left-eye image and a right-eye image on a display panel, the display panel including a first sub pixel, a second sub pixel, a third sub pixel and a fourth sub pixel sequentially arranged in a row direction and driving an active barrier panel to form an opening part configured to transmit light and a barrier configured to block light, the active barrier panel including a first barrier electrode, a second barrier electrode, a third barrier electrode and a fourth barrier electrode respectively corresponding to the first, second, third and fourth sub pixels.
    Type: Application
    Filed: August 10, 2012
    Publication date: September 19, 2013
    Inventors: Kwan-Ho KIM, Seon-Ki KIM, Tae-Ho KIM, Seong-Nam LEE, Jung-Hun LEE, Jae-Woo JUNG
  • Patent number: 8537149
    Abstract: A pixel array having a plurality of pixel structures is provided. At least one of the pixel structures includes a scan line, a data line, an active device, a pixel electrode, a capacitor electrode line, a readout line and a sensing device. The scan line and the data line are disposed on a substrate. The active device is electrically connected to the scan line and the data line. The pixel electrode is electrically connected to the active device. The capacitor electrode line electrically couples with the pixel electrode. The readout line is disposed parallel to the data line. The sensing device is electrically connected to the scan line and the readout line, and the sensing device is connected to an adjacent capacitor electrode line.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: September 17, 2013
    Assignee: Integrated Digital Technologies, Inc.
    Inventors: Sen-Shyong Fann, Yang-Hui Chang, Shen-Tai Liaw, Nae-Jye Hwang
  • Patent number: 8537089
    Abstract: A display device includes a first substrate, a first electrode comprising first electrode extensions formed on the first substrate, a second electrode comprising second electrode extensions formed on the first substrate and arranged alternately with the first electrode extensions, a second substrate facing the first substrate, liquid crystal molecules interposed between the first substrate and the second substrate, wherein electrode gaps formed between the first electrode extensions and the second electrode extensions comprise first electrode gaps and second electrode gaps, and the first electrode gaps are different from the second electrode gaps, and wherein the liquid crystal molecules are aligned vertically to the first and the second substrate, when the electric field is not formed between the first and the second substrate.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: September 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-hwan Shin, Sung-woon Kim, Hwa-sung Woo, Hee-seop Kim
  • Publication number: 20130235006
    Abstract: There is provided a method of driving a display panel. In the method, it is determined whether a driving mode is a two-dimensional image mode or a three-dimensional image mode. A first gate driving control signal and a second gate driving control signal are generated by converting an input control signal inputted in accordance with the driving mode. A first gate signal is outputted to an odd-numbered gate line connected to a first sub-pixel within a unit pixel of the display panel based on the first gate driving control signal. A second gate signal is outputted to an even-numbered gate line connected to a second sub-pixel within the unit pixel of the display panel based on the second gate driving control signal.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 12, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong-Hwan SHIN, Baek-Kyun JEON
  • Patent number: 8531361
    Abstract: An OLED display includes a data line, a gate line crossing the data line receiving a scan pulse, a high potential (HP) driving voltage (DV) source, a low potential (LP) DV source, a light emitting element (LEE) emitting light from current flowing between the HP DV source and the LP DV source, a drive element (DE) connected between the HP DV source and the LEE controlling a current flowing in the LEE from voltage between a gate electrode (GE) and a source electrode (SE) of the DE, and a driving current stabilization circuit applying a voltage to the GE of the DE turning on the DE and sinking a reference current through the DE, setting a source voltage of the DE at a sensing voltage and modifying voltage between the GE and SE of the DE to scale a current to be applied to the LEE from the reference current.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: September 10, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Woo Jin Nam
  • Patent number: 8531376
    Abstract: There is disclosed a shift register comprising a bootstrap circuit that outputs a voltage of the supply voltage to the output when the voltage of a first node becomes higher or lower than the supply voltage. The shift register comprises: two or more transistors connected in series to the first node; a device for supplying the voltage to a second node between the transistors such that the voltage between the drains and sources of the transistors becomes below the supply voltage; a first input transistor connected to the first node, and the gate electrode thereof is connected to a first input terminal as well; and an output transistor connected to the output terminal and the clock signal while having the gate electrode connected to the first node, wherein the gate electrode of the output transistor is not opened except for the bootstrap period.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: September 10, 2013
    Assignee: NLT Technologies, Ltd.
    Inventor: Masamichi Shimoda
  • Patent number: 8531416
    Abstract: A liquid crystal display (LCD) panel includes an array substrate, an opposite substrate and a liquid crystal layer. The array substrate includes a plurality of data lines, a plurality of gate lines, a pixel electrode, a plurality of sensing lines and a touch sensing circuit. The gate lines cross the data lines. The number of the gate lines is double the number of data lines. The pixel electrode is connected to the data line and the gate line to define a pixel area. The sensing lines are formed substantially parallel to the data lines. The touch sensing circuit is electrically connected to adjacent gate lines in a forming direction of the data line and the sensing line, a sensing line for touch position detection being formed in one line direction. such that an aperture ratio of an LCD panel is increased.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: September 10, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dae-Yang Bak, Seok-Hyun Jung
  • Patent number: 8525817
    Abstract: A pixel array module includes a substrate, a pixel electrode array, a patterned conductive layer and a semiconductor circuit unit. The substrate has a first surface and a second surface opposite to the first surface. The pixel electrode array is disposed on the first surface of the substrate. The patterned conductive layer is disposed on the second surface of the substrate, and the patterned conductive layer is electrically connected to the pixel electrode array. The semiconductor circuit unit has at least one input terminal and at least one output terminal, which is electrically connected to the patterned conductive layer. A flat display apparatus is also disclosed.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: September 3, 2013
    Assignee: Pervasive Display Co., Ltd.
    Inventor: Wen-Jyh Sah
  • Publication number: 20130222216
    Abstract: A display apparatus includes a first pixel, a second pixel, a first selector, and a second selector. The first pixel includes first sub-pixels connected to a first gate line and respectively connected to corresponding data lines included in a first data line group and the second pixel includes second sub-pixels connected to a second gate line adjacent to the first gate line and respectively connected to corresponding data lines, one of which is included in a second data line group different from the first data line group. The first selector applies first data signals to one of odd-numbered data lines, and the second selector applies second data signals having a different polarity from the second data signals to one of even-numbered data lines.
    Type: Application
    Filed: June 6, 2012
    Publication date: August 29, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Won PARK, Jae Sung BAE, Bonghyun YOU, Kyung-Hoon KIM
  • Patent number: 8520034
    Abstract: A method for generating chopper-stabilized signals includes the following steps. First, a voltage polarity control signal is received. Next, the voltage polarity control signal is sampled to obtain a sampling signal, and a voltage transformation manner of the voltage polarity inversion of the voltage polarity control signal is judged according to the sampling signal. Then, a frame transformation signal template is obtained according to the voltage transformation manner of the voltage polarity inversion of the voltage polarity control signal and the sampling signal. Next, the frame transformation signal template is compared with the sampling signal and a frame transformation signal is generated. Then, a first chopper-stabilized signal is outputted according to the frame transformation signal and the voltage polarity control signal.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: August 27, 2013
    Assignee: Raydium Semiconductor Corporation
    Inventor: Yong-Nien Rao
  • Patent number: 8519923
    Abstract: The invention relates to methods and apparatus for forming images on a display utilizing a control matrix to control the movement of MEMs-based light modulators.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: August 27, 2013
    Assignee: Pixtronix, Inc.
    Inventors: Nesbitt W. Hagood, IV, Abraham McAllister, Stephen R. Lewis, Roger W. Barton
  • Patent number: 8519910
    Abstract: An image processing method comprises: (A) separating R and B data and G data from input data; (B) loading data corresponding to respective odd rows of gamma-converted R and B data, and storing data corresponding to respective even rows of the R and B data adjacent to the loaded odd rows; (C) loading two R data of the even row, along with two R data of the odd row corresponding to a first display position, so as to form a 2Ɨ2 R pixel area, and loading two B data of the even row, along with two B data of the odd row corresponding to a second display position, so as to form a 2Ɨ2 B pixel area; (D) computing the sharpness of the corresponding display data by comparing the data in each of the R and B pixel areas column by column and row by row; (E) computing the luminance of the display data by taking the average value of the data corresponding to the odd row of each of the R and B pixel areas; (F) determining the gray scale value of output R data by adding the sharpness to the luminance of the R data, and determi
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: August 27, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Byunghwee Park, Namyang Lee, Thomas Lloyd Credelle
  • Patent number: 8519916
    Abstract: Circuits and systems comprising one or more switches are provided. A circuit includes a first switch formed on a substrate; and a second switch formed on the substrate, the second switch including a first terminal coupled to a third terminal of the first switch. A system includes a supply; a first switch formed on a substrate, the first switch coupled to the supply; a second switch formed on the substrate, the second switch coupled to the first switch; a third switch formed on the substrate, the third switch coupled to the supply; a fourth switch formed on the substrate, the fourth switch coupled to the third switch; and a driver coupled to respective second terminals of the first, second, third, and fourth switches.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: August 27, 2013
    Assignee: Sarda Technologies, Inc.
    Inventor: James L. Vorhaus
  • Patent number: 8519628
    Abstract: The amplitude of a potential of a signal line is decreased and a scan line driver circuit is prevented from being excessively loaded. A light-emitting device includes a light-emitting element; a first power supply line having a first potential; a second power supply line having a second potential; a first transistor for controlling a connection between the first power supply line and the light-emitting element; a second transistor, which is controlled in accordance with a video signal, whether outputting the second potential applied from the second power supply line or not; a switching element for selecting either the first potential applied from the first power supply line or the output of the second transistor; and a third transistor for selecting whether the first potential or the output of the second transistor which is selected by the switch is applied to a gate of the first transistor.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: August 27, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Ryota Fukumoto, Hiroyuki Miyake, Yoshifumi Tanada, Kei Takahashi
  • Publication number: 20130215140
    Abstract: Photo frames are provided for displaying pictures that are related to time zone management. In one embodiment, a photo frame is provided for switching on the photo frame based on time zone information, displaying the pictures based on the time zone information, displaying the pictures together with time zone information, and searching the pictures based on the time zone information.
    Type: Application
    Filed: February 16, 2012
    Publication date: August 22, 2013
    Inventor: YAT WAI EDWIN KWONG
  • Patent number: 8514157
    Abstract: A differential amplifier has first and second input terminals (T1, T2), an output terminal, a differential stage connected to the first and second input terminals, and an amplification stage having an input terminal thereof connected to an output terminal of the differential stage and an output terminal thereof connected to the output terminal. The differential stage includes a first differential pair with one of an input pair thereof connected to the first input terminal (T1) and the other connected to the output terminal, a second differential pair with one of an input pair thereof connected to the first input terminal (T1) and the other connected to the second input terminal (T2), a first current source for supplying current to the first differential pair, a second current source for supplying current to the second differential pair, and a load circuit connected to the output pairs of the first and second differential pairs.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: August 20, 2013
    Assignees: NEC Corporation, NEC Electronics Corporation
    Inventor: Hiroshi Tsuchi
  • Patent number: 8514160
    Abstract: A display panel including a plurality of scan lines, a plurality of data lines, and a plurality of pixels is provided. The data lines are disposed substantially perpendicular to the scan lines Each of the pixels is electrically connected with the corresponding data line and the corresponding scan line and the pixels are arranged as an array. The data lines are grouped into a plurality of groups and each of the groups is disposed between two adjacent pixel columns and has N data lines, where N is a positive integer greater than or equal to 3. A portion of the data lines of at least a first group among the groups cross over a portion of the scan lines. The rest data lines of the first group cross over all the scan lines.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: August 20, 2013
    Assignee: Au Optronics Corporation
    Inventors: Yu-Sheng Huang, Ya-Ling Hsu, Hung-Lung Hou
  • Patent number: 8514156
    Abstract: The image display apparatus of the invention has: a liquid crystal panel that is used to display an image represented by input image data; and a lighting device that emits illumination light controlled according to a light control level suitable for the input image data and irradiates the liquid crystal panel with the controlled illumination light. The image display apparatus further includes a counter electrode voltage control module that generates a counter electrode voltage to be input into the liquid crystal panel and supplies the generated counter electrode voltage to the liquid crystal panel. The counter electrode voltage control module has: a counter electrode voltage setting module that sets a counter electrode voltage control level corresponding to the light control level; and a counter electrode voltage generation module that generates the counter electrode voltage in response to the set counter electrode voltage control level.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: August 20, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Fumio Koyama
  • Publication number: 20130207960
    Abstract: An imaging device comprising comprises a matrix of pixels, at least one data conductor connected to several pixels of the matrix, organized row-wise and successively transporting signals delivered by respectively the pixels of the row and an electronic current generator supplying several pixels, each of the pixels comprising: a transistor delivering at the node of the pixel, the signal delivered by the pixel considered and wherein can flow a bias current from the current generator, and a first electronic switch connecting the node of the pixel to the data conductor associated with this pixel as a function of a selection signal of the pixel. Each of the pixels comprises a second electronic switch, distinct from the first electronic switch, joined to the node of the pixel, the current arising from the generator to be made to flow in the transistor as a function of the selection signal for the pixel.
    Type: Application
    Filed: September 28, 2011
    Publication date: August 15, 2013
    Applicant: TRIXELL S.A.S.
    Inventors: Marc Arques, Jean-Luc Martin, Arnaud Peizerat
  • Patent number: 8508704
    Abstract: A pixel array including a plurality of scan lines, a plurality of data lines, and a plurality of sub-pixels is provided. Each sub-pixel is electrically connected to one of the scan lines and one of the data lines correspondingly. Each sub-pixel arranged in the nth row includes a first switch, a second switch, a first pixel electrode, a second pixel electrode and a third switch. The first switch and the second switch are electrically connected to the nth scan line and the mth data line. The first pixel electrode is electrically connected to the first switch. The second pixel electrode is electrically connected to the second switch and has an opening for accommodating the first pixel electrode. In each sub-pixel, the first pixel electrode is surrounded by the second pixel electrode. In addition, the third switch is electrically connected to the (n+1)th scan line and the second pixel electrode.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: August 13, 2013
    Assignee: Au Optronics Corporation
    Inventor: Te-Wei Chan
  • Patent number: 8508456
    Abstract: A liquid crystal display (LCD) controller includes a plurality of segment/key source control circuits connected with an LCD panel and a key matrix through a plurality of segment/key source terminals, to periodically output a signal for one frame which contains a display output period and a key source output period. The plurality of segment/key source control circuits output segment signals having display drive voltages indicating a maximum value, a minimum value, and intermediate values between the maximum value and the minimum value. The plurality of segment/key source control circuits output first key scan pulse signals varying between maximum and minimum values to the plurality of segment/key source terminals during the key source output period in a key scan state when the key matrix has been operated, and then, second key scan pulse signals obtained by inverting the first key scan pulse signals to the corresponding segment/key source terminal.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: August 13, 2013
    Assignee: Renesas Electronics Corporation
    Inventor: Naoyuki Shiraishi
  • Patent number: 8508123
    Abstract: Disclosed herein is a display panel based on active matrix driving having a display area made up of N pixel control lines, M video signal lines orthogonally intersecting the N pixel control lines, and pixel circuits arranged at intersections between the N pixel control lines and M video signal lines, wherein positional identification patterns are arranged on every k (k being a natural number) pixel control lines inside each of the pixel circuits.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: August 13, 2013
    Assignee: Sony Corporation
    Inventor: Kazuo Nakamura
  • Patent number: 8508466
    Abstract: A driving method for an electrophoretic display having a plurality of first electrodes, a second electrode, and electrophoretic particles positioned in a plurality of pixel areas between the first electrodes and the second electrode, comprises applying an initial driving voltage to the electrophoretic particles in the pixel areas for a predetermined time, applying a first image-displaying voltage having a opposite polarity to that of the initial driving voltage to the electrophoretic particles in a portion of the pixel areas for a predetermined time after applying the initial driving voltage, and applying a first constant gray-displaying voltage having the opposite polarity to that of the initial driving voltage to the electrophoretic particles positioned in a portion of the pixel areas for a predetermined time after applying the first image-displaying voltage.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: August 13, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo-Young Kim, Cheol-Woo Park
  • Patent number: 8508515
    Abstract: A buffering circuit with reduced power consumption is provided. The output buffering circuit includes first and second amplifier circuits. The first amplifier circuit includes a first input stage and a first output stage both coupled between a first power voltage and a second power voltage lower than the first power voltage, and an assistant discharging unit configured to provide a discharging current flowing from a first output node to a first intermediate power voltage during a discharging operation of the first amplifier circuit. The second amplifier circuit includes a second input stage and a second output stage both coupled between the first power voltage and the second power voltage, and an assistant charging unit configured to provide a charging current flowing from a second intermediate power voltage to a second output node during a charging operation of the second amplifier circuit.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: August 13, 2013
    Assignees: Himax Technologies Limited, NCKU Research and Development Foundation
    Inventors: Jia-Hui Wang, Chien-Hung Tsai, Ying-Lieh Chen, Chin-Tien Chang
  • Patent number: 8508446
    Abstract: The invention concerns an electronic circuit for dynamic command of light sources in variable message information panels. It includes a number of elementary circuits consecutively connected between them, each having at least one LED connected through respective switchable branches, to a feed voltage, to a LED short-circuiting line, to a contiguous elementary circuit and to a component or a control circuit output. Thus, by commanding the switching elements through the control circuit several elementary circuits can be selectively configured as closed circuits, each of which having a chain of LEDs activated in dynamically variable numbers wherein the feed voltage is applied to the feed branch of the first active LED of the chain and the control circuit output is closed on the last active LED of the activated LEDs chain.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: August 13, 2013
    Assignee: AESYS S.p.A.
    Inventors: Giuseppe Biava, Stefano Ivaldi
  • Patent number: 8502764
    Abstract: A gate driving method for a liquid crystal display (LCD) and a gate driver thereof are provided. The LCD has a plurality of scan lines. The method starts by generating a gate driving signal. A correction signal is superposed to the gate driving signal to generate a corrected gate driving signal and to reduce a high voltage level of the gate driving signal, wherein a polarity of the correction signal is opposite to a polarity of the gate driving signal. The corrected gate driving signal is then outputted to drive one of the corresponding scan lines.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: August 6, 2013
    Assignee: AU Optronics Corporation
    Inventors: Wen-Fa Hsu, Chien-Yu Yi
  • Patent number: 8502758
    Abstract: Methods and displays are disclosed for presenting media content on display systems. A display is configured as an array of LEDs. The array of LEDs includes a first set of rows including first LEDs in a repeating pattern of a first color LED, a second color LED, and a third color LED. A second set of rows includes second LEDs in a repeating pattern of the first color LED, the second color LED, and the third color LED, wherein the second set of rows are interleaved between the first set of rows and the second LEDs are offset relative to the first LEDs. Visual content to be presented on the display includes a repeating sequence of four frames of an array of virtual pixels such that each virtual pixel of the array comprises at least one of the first LEDs and at least one of the second LEDs.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: August 6, 2013
    Assignee: Young Electric Sign Company
    Inventors: Graham N. Beland, James Blake Gover, Clifford B. Brown, Brent W. Brown
  • Patent number: 8502767
    Abstract: A display apparatus comprising a display unit and a plurality of light emitting diodes (LEDs) provided in a backlight that illuminates the display unit, the display apparatus includes: a power supplier; a current detector which detects a value of a current flowing in each of the LEDs; a current adjusting unit which compares a target current value which is supplied to the LED with a current value detected by the current detector and controls the value of the current flowing in the LED; and a controller which determines the target current value based on grayscale information of a video signal which is displayed on the display unit, provides the target current value to the current adjusting unit, and provides a virtual target current value that is higher than the target current value to the current adjusting unit for a predetermined time period if the target current value is determined.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: August 6, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-hoon Lee, Jeong-il Kang
  • Publication number: 20130187837
    Abstract: A matrix substrate includes a plurality of pixels arranged in a matrix of rows and columns. In the matrix substrate a conducting voltage and a non-conducting voltage of a transistor included in a unit circuit including a demultiplexer that connects a plurality of connection terminals which are disposed to be smaller in number than the number of a plurality of driving lines which are connected in common to a plurality of pixels in a row direction and are arranged in parallel to each other in a column direction are supplied to a control line connected to a control electrode of a transistor at a frequency which is half a frequency at which a pixel is driven. Thus, a matrix substrate capable of suppressing the number of connection terminals and reducing power consumption is provided.
    Type: Application
    Filed: January 17, 2013
    Publication date: July 25, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: CANON KABUSHIKI KAISHA
  • Patent number: 8487965
    Abstract: The display device includes a display panel which includes a plurality of pixels, a gate driver which sequentially applies gate-on voltages to the plurality of pixels for a first period and a data driver which generates data voltages for at least two pixels of the plurality of pixels for the first period, and supplies the data voltages to the two pixels of the plurality of pixels, respectively, wherein an application order of the data voltages applied to the at least two pixels of the plurality of pixels is reversed in two adjacent frames.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: July 16, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seock-Cheon Song, Jun-Young Lee, Myung-Koo Kang, Sung-Wook Kang, Jong-Hwa Park, Young-Kwang Kim
  • Patent number: 8482489
    Abstract: A system for displaying images is provided and includes a plurality of first signal lines, a plurality of second signal lines, a display area, and a first dummy line. The second signal lines are interlaced with the first signal lines. The display area comprises a plurality of display pixels. Each of the display pixels corresponds to the interlaced first signal line and second signal line. The first dummy line is disposed on a first side of the display area and interlaced with the second signal lines. A section of the first dummy line between every two adjacent second signal lines among the second signal lines has an opening.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: July 9, 2013
    Assignee: Chimei Innolux Corporation
    Inventors: Pao-Ju Lin, Hung-Yi Luo, Hsin-Hsu Shen, Chien-Feng Lee, Yen-Liang Shen
  • Patent number: 8482503
    Abstract: A liquid crystal display and a method of driving the same are disclosed. The liquid crystal display includes a liquid crystal display panel including data lines and gate lines crossing each other and liquid crystal cells, a timing control signal generating unit, a data drive circuit supplying a data voltage to the data lines, and a gate drive circuit. The timing control signal generating unit generates a first gate timing control signal for controlling a scan direction of the liquid crystal display panel in a sequential direction and a second gate timing control signal for controlling the scan direction in a reverse sequential direction. The gate drive circuit supplies a gate pulse to the gate lines while a shift direction of the gate pulse changes in response to the first and second gate timing control signals.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: July 9, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hongsung Song, Woongki Min, Yonggi Son, Suhyuk Jang
  • Patent number: 8482498
    Abstract: A liquid crystal display panel includes a display region, a periphery circuit region, a joint obligate region, a plurality of first test thin-film transistors (TFTs), a plurality of second TFTs, a plurality of first lines, a plurality of second lines, a blank region, and at least one first adjustment TFT. The first and second test TFTs are disposed on the joint obligate region according to a regular distance. Each of the first and second test TFTs has a transistor width. The first adjustment TFT is disposed on the blank region. The width of the blank region is not smaller than the sum of the twice regular distance and the transistor width. Thereby, the present invention can prevent the band mura of the liquid crystal display panel effectively when the liquid crystal display panel is in testing.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: July 9, 2013
    Assignee: Au Optronics Corp.
    Inventors: Shu-Hao Lin, Ying-Ying Chen, Chun-Kai Lai, Chao-Cheng Lin, Yen-Hua Hsu
  • Publication number: 20130169515
    Abstract: A flexible display apparatus including: a first film including a first surface and a second surface that are opposite each other, and a first groove formed in the first surface, the first film having a first rigidity; a third film on the second surface of the first film; a fourth film facing the third film; an emission display unit between and encapsulated by the third film and the fourth film; and a second film on the fourth film and facing the first film, the second film having a second rigidity that is less than the first rigidity.
    Type: Application
    Filed: May 15, 2012
    Publication date: July 4, 2013
    Inventors: Valeriy PRUSHINSKIY, Won-Sik Hyun, Hyong-Yeol Na, Min-Soo Kim, Mu-Gyeom Kim
  • Patent number: 8477081
    Abstract: A display has a louver shade having at least two louver segments, a display segment mounted on each louver segment, each display segment being a part of a larger display, drive electronics electrically coupled to each display segment to provide image data to display elements in the display segment, and a control circuit to provide the image data to the drive electronics, the control circuit arranged to provide display data when the louver segments are in a closed position.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: July 2, 2013
    Assignee: Palo Alto Research Center Incorporated
    Inventor: Jurgen H. Daniel
  • Patent number: 8477250
    Abstract: A rollable circular display device (10) is disclosed, comprising, in one embodiment, a ring-shaped display (6) expandable in two dimensions between a stored configuration and an expanded configuration and a body for winding the ring-shaped display in the stored configuration. In another embodiment, the rollable circular display device (10) comprises a housing (20), a circular display (6) expandable in two dimensions between a stored configuration in which the circular display (6) is stored within the housing (20) and an expanded configuration in which the circular display is fully viewable, and an inner cone, being arranged co-axially within the housing (20) and rotatable within the housing, wherein the circular display (6) is wound around the inner cone in the stored configuration.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: July 2, 2013
    Assignee: Creator Technology B.V.
    Inventors: Nicolaas Willem Schellingerhout, Kenny Darmadji, Raymond Wilhelmus Louis Lafarre, Hjalmar Edzer Ayco Huitema
  • Patent number: 8477084
    Abstract: An organic electroluminescence display has data, gate, and signal lines arranged on a substrate. Pixel regions are defined by the gate and signal lines. Switching elements provided in the pixel regions are electrically connected to the signal lines and the gate lines. Switching blocks open and close an electrical connection between the signal lines and the pixels. A driving unit drives the switching elements by supplying scanning signals to the gate lines. The driving unit also supplies a first control signal before the scanning signals are supplied and a second control signal when the scanning signals are supplied. The second control signal makes the switching blocks sequentially conductive, during which time image signals are supplied to the data lines. The first control signal permits the signal lines to be set at a predetermined voltage.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: July 2, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Hoon Ju Chung, Chang Hoon Jeon
  • Patent number: 8471784
    Abstract: This invention relates to a driving apparatus of a plasma display panel that is capable of being operated stable, regardless of temperature. A driving apparatus of a plasma display panel according to the present invention includes a panel having a scanning electrode for receiving a scanning pulse in an address period and an address electrode for receiving a date pulse synchronized with the scanning pulse in the address period; and a pulse width controller for changing the width of the scanning pulse when the panel is driven at a low temperature.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: June 25, 2013
    Assignee: LG Electronics Inc.
    Inventors: Soo Seok Sim, Won Tae Kim, Bon Cheol Koo, Seong Ho Kang
  • Patent number: 8471801
    Abstract: An exemplary driving method of a display panel with half-source-driving structure is provided. The display panel includes at least one pixel each using a capacitor to store a voltage. A terminal of the capacitor is adapted to receive a display data inputted from a data line, and another terminal of the capacitor is electrically coupled to a common electrode. The driving method includes: obtaining a direct current power signal; coupling an alternating current signal with the direct current power signal to generate a common electrode driving signal; and applying the common electrode driving signal to the common electrode. A rising time of a rising edge and a falling time of a falling edge of the common electrode driving signal are modified to improve a V-line mura phenomenon of the display panel.
    Type: Grant
    Filed: July 26, 2009
    Date of Patent: June 25, 2013
    Assignee: AU Optronics Corp.
    Inventors: Tung-Huang Chen, Yun-Chung Lin, Yu-Chieh Cho, I-Fang Chen, Chien-Li Chen
  • Patent number: 8472191
    Abstract: An image displaying apparatus, which is excellent in heat radiation efficiency and has an excellent back design, includes a display panel for displaying an image; a heat generating member provided on a back side of the display panel; and a cabinet for covering the display panel and the heat generating member at least from the back side of the display panel. In the cabinet, an aperture is provided at a position facing the heat generating member, and an opening/closing unit enables switching between closing and opening of the aperture. In a state that the aperture is opened by the opening/closing unit and one part of a heat-transfer member is positioned on a side of the cabinet opposite to the display panel, the other part of the heat-transfer member extends through the aperture so that the heat-transfer member can thermally be connected to the heat generating member.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: June 25, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Yamamoto, Kinya Kamiguchi
  • Patent number: 8466852
    Abstract: A full color, reflective display having superior saturation and brightness is achieved with a novel display element comprising multichromatic elements. In one embodiment a capsule includes more than three species of particles which differ visually. One embodiment of the display employs three sub-pixels, each sub-pixel comprising a capsule including three species of particles which differ visually. Another embodiment of the display employs color filters to provide different visual states to the user. The display element presents a visual display in response to the application of an electrical signal to at least one of the capsules.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: June 18, 2013
    Assignee: E Ink Corporation
    Inventors: Paul Drzaic, Russell J. Wilcox
  • Patent number: RE44484
    Abstract: An active matrix electrophoretic display is driven. In a reset period Tr a reset voltage is applied to each pixel electrode. Next, in a writing period an applied voltage is applied to each of said pixel electrode during a time period corresponding to a gradation value designated by an image data. Next, a common voltage is applied to each of said pixel electrode, so that electric charge accumulated in each capacitor is taken away and no electric field is applied to each dispersal system, thereby a displayed image is held.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: September 10, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Katase