Physically Integral With Display Elements Patents (Class 345/205)
  • Publication number: 20140022222
    Abstract: A dynamically tunable diffuser having a dynamically tunable scattering angle is provided. The dynamically tunable diffuser has a first diffuser having a first series of microstructures and at least one second diffuser having a second series of microstructures that is rotated relative to the first series of microstructures to provide an angle offset between the first diffuser and the at least one second diffuser. The first diffuser and the at least one second diffuser are integrated together in a display screen to provide good quality, continuous 3D images to viewers regardless of their position and height.
    Type: Application
    Filed: January 31, 2011
    Publication date: January 23, 2014
    Inventors: Huei Pei Kuo, Jong-Souk Yeo
  • Publication number: 20140015817
    Abstract: An information display device includes: a display unit including a display panel and a drive circuit portion, arranged on a back side of the display panel, for displaying information on the display panel; and a front panel arranged on a display surface side of the display panel and larger than an outside dimension of the display panel. The front panel has a shape in which curves are formed in corner portions at four corners thereof. A long decoration member having flexibility is arranged in a winding manner so as to cover an entirety of outer peripheral surfaces of four sides of the display unit including an outer peripheral surface of the front panel. The decoration member includes an adhesive layer bonded to the outer peripheral surface of the display unit such that the decoration member is in close contact with the outer peripheral surface of the front panel.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 16, 2014
    Inventors: Suguru Nakao, Shuji Yamashita, Takehiko Yamashita
  • Patent number: 8629858
    Abstract: A liquid crystal device includes a first substrate, a second substrate, liquid crystal which is in between the first and the second substrate, and a detection electrode provided on a side of the first substrate, opposite to a side of the liquid crystal. The second substrate includes pixel electrodes connected through switching elements to signal lines, opposite electrodes formed between the pixel electrodes and the liquid crystal and are connected to control lines, a selection circuit that conducts the switching element during a selection period and interrupts conduction after the selection period has elapsed, a signal supplying circuit which supplies a data electric potential during the selection periods, a electric potential control circuit which sets the control lines to an predetermined electric potential when the scanning lines to the control line is selected and sets to a reference electric potential after the selection period has elapsed.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: January 14, 2014
    Assignee: Japan Display West Inc.
    Inventors: Takeshi Koshihara, Sumio Utsunomiya
  • Patent number: 8624248
    Abstract: By providing appropriate TFT structures arranged in various circuits of the semiconductor device in response to the functions required by the circuits, it is made possible to improve the operating performances and the reliability of a semiconductor device, reduce power consumption as well as realizing reduced manufacturing cost and increase in yield by lessening the number of processing steps. An LDD region of a TFT is formed to have a concentration gradient of an impurity element for controlling conductivity which becomes higher as the distance from a drain region decreases. In order to form such an LDD region having a concentration gradient of an impurity element, the present invention uses a method in which a gate electrode having a taper portion is provided to thereby dope an ionized impurity element for controlling conductivity accelerated in the electric field so that it penetrates through the gate electrode and a gate insulating film into a semiconductor layer.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: January 7, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideomi Suzawa, Koji Ono, Yasuyuki Arai
  • Patent number: 8624806
    Abstract: A pixel circuit and an organic light-emitting diode (OLED) display using the pixel circuit is provided. The pixel circuit includes: an OLED; a third N-channel metal-oxide semiconductor (NMOS) transistor coupled to a data line and a first scan line and configured to apply a data signal to a first node; a storage capacitor having one terminal coupled to the first node and the other terminal coupled to a second node; a fourth NMOS transistor coupled between a first power and the second node and configured to apply a voltage of the first power to the second node; a first NMOS transistor having a first electrode, a second electrode, and a gate electrode coupled to the second node; and a second NMOS transistor coupled between the second node and the first electrode of the first NMOS transistor and configured to diode-connect the first NMOS transistor.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: January 7, 2014
    Assignee: Samsung Display Co, Ltd.
    Inventors: Bo-Yong Chung, Keum-Nam Kim
  • Patent number: 8614699
    Abstract: A problem in that a light emitting element slightly emits light is solved by an off current of a thin film transistor connected in series to the light emitting element, thereby a display device which can perform a clear display by increasing contrast, and a driving method thereof are provided. When the thin film transistor connected in series to the light emitting element is turned off, a charge held in the capacitance of the light emitting element itself is discharged. Even when an off current is generated at the thin film transistor connected in series to the light emitting element, this off current charges this capacitance until the capacitance of the light emitting element itself holds a predetermined voltage again. Accordingly, the off current of the thin film transistor does not contribute to light emission. In this manner, a slight light emission of the light emitting element can be reduced.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: December 24, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroyuki Miyake, Tomoyuki Iwabuchi, Ryota Fukumoto
  • Patent number: 8610695
    Abstract: A drive circuit for a light emitting display apparatus including a pixel circuit having a light emitting device for emitting a light having brightness determined based on supplied current and a drive transistor for supplying the current to the light emitting device, comprises a threshold value correction circuit converting a second signal including a threshold voltage of the drive transistor and a data voltage, the second signal being output from the drive transistor when a first signal including the data voltage is input into the control electrode of the drive transistor, into a third signal including the threshold voltage of an inverted polarity and the data voltage or a voltage corresponding to the data voltage, to output the converted third signal to the pixel circuit. The pixel circuit includes a switch for supplying the third signal to the control electrode of the drive transistor.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: December 17, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hisae Shimizu, Katsumi Abe
  • Patent number: 8605077
    Abstract: TFTs 10 and 15 and the organic EL device 17 are provided between a power line Vp and a common cathode Vcom, and a capacitor 16 and a TFT 11 are provided between a gate of the TFT 10 and a data line Sj. A TFT 12 is provided between the gate and a drain of the TFT 10, a TFT 13 is provided between an anode terminal of the organic EL device 17 and the common cathode Vcom, and a TFT 14 is provided between one electrode of the capacitor 16 and the power line Vp. Gates of the TFTs 11 to 13 are connected to a scanning line Gi, and gates of the TFTs 14 and 15 are connected to a scanning line Ei. When writing, a high potential is supplied to the scanning line Gi, and a low potential is supplied to the scanning line Ei a little after this. While the high potentials are supplied to the two scanning lines, the data line Sj is controlled to be in a high impedance state. In this manner, a pixel circuit configured by N-type transistors is driven using two types of scanning lines.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: December 10, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takahiro Senda
  • Publication number: 20130321367
    Abstract: A display panel of a liquid crystal display device includes smoothing parts provided on an output end side of auxiliary capacitance lines. Through the smoothing parts, the auxiliary capacitance lines arranged along scanning signal lines and a common electrode are connected to each other. The smoothing parts each have a correction TFT and a capacitor. A source electrode of the correction TFT and each of the auxiliary capacitance lines are connected to each other, and a drain electrode and the common electrode are connected to each other through each of the capacitors. The correction TFT is controlled so as to enter a conductive state when the scanning signal line is in a selected state, and enter a shut state when the scanning signal line is in a non-selected state.
    Type: Application
    Filed: February 10, 2012
    Publication date: December 5, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Nobuhiro Kuwabara
  • Patent number: 8599180
    Abstract: A driving circuit for driving an LCD includes a common electrode, a number of pixel electrodes, a peripheral circuit, and a processing unit including a first input/output (I/O) port, a second I/O port; and a number of third I/O ports. The first I/O port and the second I/O ports are connected to the common electrode via the peripheral circuit, and each third I/O port is connected to a different pixel electrode. The processing unit controls the first I/O port, the second I/O port, and the third I/O ports to output a first or second voltage according to a display signal, thus the pixel electrodes are at the first or the second voltage accordingly, the common electrode is at a voltage in a range between the second voltage and the first voltage in receiving the voltage output by the peripheral circuit, thus driving the LCD to display an image.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: December 3, 2013
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Qi-Long Yu, Jun Zhang, Jun-Wei Zhang, Chia-Hung Chien, Tsung-Jen Chuang, Shih-Fang Wong
  • Patent number: 8593441
    Abstract: Disclosed herein is a display apparatus, including: a plurality of subpixels disposed adjacent each other and forming one pixel which forms a unit for formation of a color image; the plurality of subpixels including a first subpixel which emits light of the shortest wavelength and a second subpixel disposed adjacent the first subpixel; the second subpixel having a light blocking member disposed between the second subpixel and the first subpixel and having a width greater than a channel length or a channel width of a transistor which forms the second subpixel.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: November 26, 2013
    Assignee: Sony Corporation
    Inventors: Tetsuro Yamamoto, Katsuhide Uchino
  • Patent number: 8593440
    Abstract: A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal layer between an upper substrate and a lower substrate, m×n liquid crystal cells arranged in a matrix format according to a crossing structure of m/2 data lines and 2n gate lines, and thin film transistors respectively connected to the m×n liquid crystal cells; a data drive circuit supplying a data voltage to the data lines in response to a polarity control signal; a gate drive circuit sequentially supplying a gate pulse to the gate lines; and a POL logic circuit controlling the polarity control signal so that a phase of the polarity control signal varies every frame period.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: November 26, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Jinsung Bae, Woongki Min, Byungjin Choi, Donghak Lee
  • Patent number: 8593445
    Abstract: A display apparatus employs a pixel array section including pixel circuits forming a matrix, signal lines as columns, scan lines as rows and power-supply lines, and driving sections. The driving sections are a signal selector, a write scanner and a drive scanner. The signal selector provides an electric potential representing a gradation or a predetermined reference electric potential. The write scanner provides a control signal. The drive scanner provides a power-supply voltage changing the electric potential from high to low. The drive scanner drives adjacent power-supply lines as a group. The number of lines as a group is determined in advance. The drive scanner switches a power-supply voltage from high to low and vice versa, and applies the voltage to groups by shifting the phase from group to group. The voltage is supplied to a group at the same phase and switched the electric potential.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: November 26, 2013
    Assignee: Sony Corporation
    Inventors: Tetsuro Yamamoto, Katsuhide Uchino, Naobumi Toyomura
  • Patent number: 8587570
    Abstract: Crosstalk in the area of intersection between row leads and row electrodes as well as undesired optical effects are avoided in an LCD display element. An LCD display panel is made of the disclosed LCD display elements. By extending the row leads over the full width of the rectangular viewing area in which information is visually displayed, the portion of the viewing area that cannot be controlled by proper drive voltage pulses is minimized. Thus, undesired crosstalk and optical effects are reduced. By driving row electrodes using column voltage sequences of the prior art and by driving column electrodes using row voltage sequences of the prior art, row and column voltage sequences are generated such that an intermediate area of liquid crystal located between the row leads and corresponding row electrodes cannot be driven to a voltage that produces an intermediate condition between an ON condition and an OFF condition.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: November 19, 2013
    Assignee: BMG Gesellschaft fuer moderne Informationssysteme mbH
    Inventors: Reiner Bayrle, Thomas Bitter, Otto Bader, Arnold Simon
  • Patent number: 8587504
    Abstract: A liquid crystal display (“LCD”) includes an LCD panel, a data driving unit, and a selection unit. A configuration of the selection unit, which includes a plurality of switching devices driven by a selection control signal to connect a plurality of data lines to each channel of the data driving unit, is adjusted according to the selection control signal, so that charging voltages of the same color pixels of the LCD panel are made the same, whereby no stripe defect appears. In addition, the configuration of the selection unit is adjusted according to the selection control signal and the polarity change of the data signal supplied from the data driving unit, so that color aggregation caused by supplying the same polarity voltage to adjacent color pixels of the LCD panel can be minimized.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Soong Yong Joo
  • Patent number: 8587572
    Abstract: In a storage capacitor line drive circuit driving a storage capacitor line of an active-matrix display device and driven by outputs of a scanning signal line drive circuit, at least one (VSS) of a high-potential supply voltage (VDD) and a low-potential supply voltage (VSS) differs from a supply voltage (GVSS) of a corresponding logical level of the scanning signal line drive circuit, the high-potential supply voltage and the low-potential supply voltage being used for generating a signal voltage of a preceding stage to an output stage. This makes it possible to achieve a storage capacitor line drive circuit capable of avoiding malfunctioning even in a case where the storage capacitor line drive circuit receives noise from a scanning signal line, and a display device including the storage capacitor line drive circuit.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: November 19, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Sasaki, Yuhichiroh Murakami, Makoto Yokoyama, Shige Furuta
  • Patent number: 8581890
    Abstract: In a liquid crystal display, a flat display and a gate driving method thereof, the flat display comprises first and second pixel rows, first to third gate lines and a gate driving circuit. The first gate line is for determining whether to turn on a portion of pixels in the first pixel row, the second gate line is for determining whether to turn on another portion of pixels in the first pixel row, and the third gate line is for determining whether to turn on a portion of the pixels in the second pixel row. The gate driving circuit is for providing first to third gate driving pulses to the first to third gate lines. The first and second gate driving pulses do not overlap with each other, and the third gate driving pulse partially overlaps with one of the first and second gate driving pulses.
    Type: Grant
    Filed: January 9, 2010
    Date of Patent: November 12, 2013
    Assignee: Au Optronics Corp.
    Inventors: Yung-Chih Chen, Tsung-Ting Tsai, Kuo-Chang Su, Chun-Hsin Liu
  • Patent number: 8582026
    Abstract: The present invention provides a mobile terminal including a terminal body having a camera, and a liquid crystal panel partitioned into a screen display region disposed with liquid crystal to display a screen, and a control region disposed with a drive circuit for driving the liquid crystal, wherein the liquid crystal panel is formed such that at least part of the control region is removed, and the camera is disposed adjacent to a removal portion formed by the removal.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: November 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dongseuck Ko, Jeunguk Ha, Namsoo Kim, Jongin Im, Hyunsuk Yang, Mansoo Sin, Jeeyoung Cheon, Jinwoong Kim
  • Patent number: 8581889
    Abstract: A display unit with which diffraction reflection is able to be decreased is provided. The display unit includes a display section having an organic EL device and a pixel circuit for every pixel. The pixel circuit has a first transistor for writing a video signal and a second transistor for driving the organic EL device based on the video signal written by the first transistor. The second transistor has a gate, a source and a drain. The organic EL device has an anode, an organic layer, and a cathode. An upper face of the source or the drain is formed at least in a region opposed to the anode or the cathode.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: November 12, 2013
    Assignee: Sony Corporation
    Inventors: Takayuki Taneda, Tetsuro Yamamoto, Katsuhide Uchino, Yuki Seo
  • Patent number: 8581257
    Abstract: The circuit board (1) of the present invention includes a plurality of transistor elements provided on a single insulating substrate (2) for respective pixels that are two-dimensionally arranged or respective pixels in a group of a predetermined number of the pixels. At least one of the plurality of transistor elements is an oxide TFT (10) having a channel layer (11) formed by an oxide semiconductor, and at least another of the plurality of transistor elements is an a-Si TFT (20) having a channel layer (21) formed by, for example, an amorphous silicon semiconductor. Each of the oxide TFT (10) and the a-Si TFT (20) is a bottom-gate transistor.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: November 12, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Atsuhito Murai, Shinya Tanaka, Hideki Kitagawa, Hajime Imai, Mitsunori Imade, Tetsuo Kikuchi, Kazunori Morimoto, Junya Shimada, Jun Nishimura
  • Patent number: 8576210
    Abstract: A display apparatus is disclosed. The display includes a display panel, a signal transmitter, and a driving chip. The signal transmitter is electrically connected with the display panel at a first bonding region of the display panel and receives an input signal from the outside. Further, the driving chip is electrically connected with the display panel at a second bonding region of the display panel and outputs a driving signal in response to the input signal. Further, the signal transmitter includes a base layer, a first conductive layer that is electrically connected with the display panel, and a second conductive layer that covers the first bonding region and the second bonding region. The second conductive layer can block electro static discharge and electro magnetic interference, such that it is possible to prevent display quality of the display apparatus from being deteriorated.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: November 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyo-Sang Yang, Byung-Chang Shim, Dong-Wan Choi, Hee-Kwon Eun
  • Patent number: 8576207
    Abstract: A system for displaying images is provided. The system includes a self-emission type display device including a substrate, a first sub-pixel unit disposed on the substrate, and a second sub-pixel unit disposed on the substrate and adjacent to the first sub-pixel unit. Each of the first and second sub-pixel units comprises a light-emitting device, a power line electrically connected to the light-emitting device, and a storage capacitor having an electrode electrically connected to the power line. The electrodes of the storage capacitors of the first and second sub-pixel units are formed of a continuous conductive layer, such that the power lines of the first and second sub-pixel units are electrically connected to each other through the continuous conductive layer.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: November 5, 2013
    Assignee: Chimei Innolux Corporation
    Inventor: Chang-Ho Tseng
  • Patent number: 8570480
    Abstract: A display device having slim border-area architecture is disclosed. The display device includes a substrate, a plurality of data lines, a plurality of gate lines, a plurality of auxiliary gate lines and a driving module. The substrate includes a display area and a border area. The data lines, the gate lines and the auxiliary gate lines are disposed in the display area. The driving module is disposed in the border area. The gate lines are crossed with the data lines perpendicularly. The auxiliary gate lines are parallel with the data lines. Each auxiliary gate line is electrically connected to one corresponding gate line. The data and auxiliary gate lines are electrically connected to the driving module based on an interlace arrangement. Further disclosed is a driving method for delivering gate signals provided by the driving module to the gate lines via the auxiliary gate lines.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: October 29, 2013
    Assignee: AU Optronics Corp.
    Inventors: Yi-Chen Chiang, Chih-Hung Shih, Maw-Song Chen, Tzu-Wei Ho, Ching-Huan Lin, Yu-Hsuan Li, Yao-Jen Hsieh, Ya-Ting Hsu, Chi-Mao Hung, Ken-Ming Chen, Yu-Cheng Chen
  • Patent number: 8570314
    Abstract: An emissive type display device includes: a pixel array section having pixels ready for an active matrix driving system; a circuit for setting a peak luminance level of each display frame; and a driving circuit for variably controlling a total application period length of a driving voltage applied to a power supply line connected to each pixel and amplitude of the driving voltage so as to obtain a set peak luminance level, when the set peak luminance level is lower than a set value, the driving circuit dividing the driving voltage into a plurality of times of pulse waveform, and variably controlling the amplitude of the driving voltage at each output time according to the peak luminance level such that the amplitude of the driving voltage at least one output time is lower than a maximum driving voltage in a non-emission period.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: October 29, 2013
    Assignee: Sony Corporation
    Inventors: Hiroshi Hasegawa, Teppei Isobe
  • Patent number: 8564504
    Abstract: A pixel array including scan lines, data lines and pixels is provided. Scan lines extend along a row direction and include first and second scan lines. The first and second scan lines are arranged alternately along a column direction. Data lines extend along the column direction in a zigzag manner and include a first data line, a second data line connected to the first data line, a third data line disposed between the first and second data lines, and a fourth data line connected to the third data line. The pixels connect with corresponding scan lines and data lines. Pixels connected with the same data line are not aligned in the column direction; pixels connected with the same data line are only arranged at the same side of the data line. Pixels of any two adjacent rows are separated by a first scan line and a second scan line.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: October 22, 2013
    Assignee: Au Optronics Corporation
    Inventors: Li-Chih Hsu, Chia-Chiang Hsaio
  • Publication number: 20130271442
    Abstract: A flat-panel display system and method are disclosed. The system includes a display controller to generate image data. The system also includes a plurality of memristive pixel cells arranged in a plurality of rows and in a plurality of columns. Each of the plurality of memristive pixel cells includes a memristive device to control a respective pixel associated with the flat panel display based on the image data.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 17, 2013
    Inventors: Wendi Li, Wei Yi, Wei Wu, Jianhua Yang
  • Patent number: 8558822
    Abstract: A liquid crystal display includes an array substrate, a color filter substrate facing the array substrate, and a liquid crystal layer provided between the array substrate and the color filter substrate. The array substrate includes a driving device, at least one conductive wiring, and a transient voltage suppressor. The driving device includes a driver. The driver has at least one common voltage terminal. The conductive wiring has a connection point and is coupled to the common voltage terminal of the driver. The transient voltage suppressor is coupled to a ground terminal and the connection point, and the connection point is near the common voltage terminal.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: October 15, 2013
    Assignee: Wintek Corporation
    Inventors: Lin Lin, Wen-Hung Wang, Shyh-Jeng Chen
  • Patent number: 8553018
    Abstract: A technique for driving a column of pixels that include light emitting elements. The technique incorporates feedback data provided from feedback data sources connected to the data line and to feedback line of the array, pixel driving circuit with feedback path. The technique can also include block of the reference elements for input signal corrections.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: October 8, 2013
    Assignee: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Yuriy Vygranenko, Shahin Jafarabadiashtiani, Peyman Servati
  • Patent number: 8552945
    Abstract: A liquid crystal display device and method for driving the same is described for reducing a compensating deviation of a common voltage. The liquid crystal display device includes a liquid crystal display panel; a data driver for driving data lines of the liquid crystal display panel; a gate driver for driving gate lines of the liquid crystal display panel; and a common voltage compensating unit for generating a plurality of compensating signals for compensating respective distortions of common voltages at a plurality of common regions of a common electrode of the liquid crystal display panel by using common voltages fed back from the common regions, and supplying compensating signals corresponding to each of the plurality of common regions.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: October 8, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Chae Wook Lim
  • Publication number: 20130257831
    Abstract: An organic light emitting display device includes: a plurality of pixel regions. Each of the pixel regions includes: a first transistor configured to apply a data voltage on a first adjacent data line to a first node in response to a scan signal on the primary scan line; a second transistor configured to apply the data voltage on the first adjacent data line to the first node in response to a sensing signal on the secondary scan line; and a third transistor configured to detect a sensing voltage and apply the sensing voltage to a second adjacent data line, The data driver compares the sensing voltage and the data voltage and compensates for the data voltage of next frame, and the scan signal and the sensing signal are generated in different intervals of a single frame.
    Type: Application
    Filed: March 26, 2013
    Publication date: October 3, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Binn Kim, Juhn Suk Yoo, Bu Yeol Lee
  • Patent number: 8547306
    Abstract: The present invention enhances a display quality of a display device as a task. As means for solving such a task, the present invention provides a display device including a light emitting element and a switching element in a pixel, wherein the switching element is provided for supplying a power source to the light emitting element and is constituted of a first switching element and a second switching element.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: October 1, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masahiro Tanaka, Toshiyuki Matsuura, Hajime Murakami, Hajime Akimoto
  • Patent number: 8547368
    Abstract: A display driving circuit of the present invention includes: a source driver (20) which outputs a source signal; a gate driver (30) which outputs a gate signal for turning on a switching element on a row; and a CS driver (40) which outputs a CS signal (CSOUT) whose electric potential is switched in a predetermined direction (low to high or high to low) in accordance with a polarity of the source signal. A CS driver (CSn) on an n-th row outputs a CS signal (CSOUT) to the n-th row in accordance with a gate signal (GLn) for the n-th row outputted from a gate driver (Gn) provided on the n-th row. This makes it possible to provide a display driving circuit which enables CC driving with a simple configuration.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: October 1, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Makoto Yokoyama, Yasushi Sasaki, Yuhichiroh Murakami
  • Patent number: 8547307
    Abstract: A display device includes an organic EL element and a capacitor. A driving transistor is connected to an anode of the organic EL element and passes a current to the organic EL element. The current corresponds to a voltage held in the capacitor. A first switch is between the capacitor and a data line, and the data line supplies the voltage to the capacitor. A voltage detector is connected to the data line for detecting an anode voltage applied to the organic EL element. A second switch is between the anode and the data line. A controller turns on the first switch, causes the organic EL element to emit light, and causes the voltage detector to detect the anode voltage by turning off the first switch and turning on the second switch while the organic EL element is emitting light.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: October 1, 2013
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Shirouzu, Tetsurou Nakamura
  • Publication number: 20130249878
    Abstract: Disclosed herein is a display apparatus, including: a plurality of subpixels disposed adjacent each other and forming one pixel which forms a unit for formation of a color image; the plurality of subpixels including a first subpixel which emits light of the shortest wavelength and a second subpixel disposed adjacent the first subpixel; the second subpixel having a light blocking member disposed between the second subpixel and the first subpixel and having a width greater than a channel length or a channel width of a transistor which forms the second subpixel.
    Type: Application
    Filed: May 16, 2013
    Publication date: September 26, 2013
    Applicant: SONY CORPORATION
    Inventors: Tetsuro Yamamoto, Katsuhide Uchino
  • Publication number: 20130249877
    Abstract: Discussed is a flat panel display device in which a protective pattern is formed on a lower surface of an upper film so that when the upper film is cut, link lines of a display panel formed in a cutting region is not damaged.
    Type: Application
    Filed: March 21, 2013
    Publication date: September 26, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventors: BongKi CHOI, KwangSu LIM, HyoDae BAE, ChangNam KIM, SangKyu LEE
  • Publication number: 20130249875
    Abstract: An organic light emitting diode (OLED) based display device including a pixel circuit that includes: an OLED to be connected to a first power terminal, a transistor connected to the OLED, a first capacitor connected to the transistor, a second capacitor connected to the first capacitor and the transistor, a first switch receiving a data signal and a scanning signal and connected to the first capacitor, a second switch connected to the transistor and receiving an enable signal, a third switch connected to the transistor and receiving a compensation signal, and a switching unit configured to transmit one of the enable signal, voltage at a terminal of the first capacitor, a reference signal and the scanning signal to a terminal of the transistor when operated in a conductive state.
    Type: Application
    Filed: January 29, 2013
    Publication date: September 26, 2013
    Applicants: INNOLUX CORPORATION, INNOCOM TECHNOLOGY (SHENZHEN) CO., LTD.
    Inventors: Ming-Chun TSENG, Gong-Chen GUO, Lien-Hsiang CHEN
  • Publication number: 20130249876
    Abstract: A shift register apparatus including a first shift register cell is disclosed. The first shift register cell includes a first logic unit, a first control unit and a first output unit. The first logic unit generates a first control signal and a second control signal according to a start signal and a first setting signal. During a first period, the first control unit employs the first and second control signals to make a first clock signal update the first setting signal and the first output unit employs the first and second control signals to make a second clock signal update the first shifted signal. During a second period, the first output unit controls the first shifted signal according to the first and second control signals such that the first shifted signal does not follow the second clock signal.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 26, 2013
    Applicant: INNOLUX CORPORATION
    Inventors: Sheng-Feng HUANG, Cheng-Hsiao LIN
  • Patent number: 8542179
    Abstract: A gate signal line driving circuit and a display device includes first and second low voltage application switching elements that supply a low voltage to gate signal lines, a holding capacitor that is connected to a reset target node and supplies an ON signal towards the first and second low voltage application switching elements in a signal low period, first and third control switching elements the one ends of which are connected to the switch input of the first or second low voltage application switching element, and second and fourth control switching elements which each are provided between the switch input of the first or second low voltage application switching element and one end of the holding capacitor. In a startup period, a high voltage is supplied to the holding capacitor through the first to fourth control switching elements.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: September 24, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takeshi Shibata, Yoshihiro Kotani, Takahiro Ochiai, Mitsuru Goto
  • Patent number: 8537154
    Abstract: A theater (54) can be divided into a plurality of booths (64) by booth partition walls (68). By moving the booth partition walls (68), the plurality of booths (64) are combined to form a combined theater (66). When the theater (54) is divided in the plurality of booths (64), each booth (64) provides a booth picture in which images of visitors seated in the booth (64) are incorporated as characters. The combined theater (66) provides a combined-theater picture with the use of screens (70) of all the booths (64). Each booth (64) provides a default picture when a fault occurs in the function of generating a booth picture.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: September 17, 2013
    Assignees: Dentsu, Inc., Dentsu Tec, Inc., Na-Ru Corporation
    Inventors: Jun Naito, Akira Hoshino, Mitsunori Kikutake, Hisashi Maruoka, Hisashi Inaba, Masao Takebayashi, Keiji Yanagiya
  • Patent number: 8531443
    Abstract: Provided is a display driving circuit eliminating occurrence of lateral stripes in the first frame from which display corresponding to a video signal is started in CC driving premised on line inversion driving. A source bus line drive circuit outputs a source signal whose polarity is reversed in sync with horizontal scanning period for each row and whose polarity is opposite in an adjacent horizontal scanning period on the same row. A CS bus line drive circuit outputs, after the horizontal scanning period for each row, a CS signal with potential switched along a direction according to polarity of the source signal in the horizontal scanning period concerned. The CS bus line drive circuit outputs the CS signal in a first frame so that potential of the CS signal when the switching element on one row is switched is different from potential of a CS signal on an adjacent row.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: September 10, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takayuki Yanagawa, Atsushi Okada, Yasushi Sasaki
  • Publication number: 20130222352
    Abstract: In one aspect, an emission driving unit and an organic light emitting diode (OLED) display having the same are disclosed. The emission driving unit includes an input signal generating circuit that receives a FLM signal according to a first clock signal, receives a second clock signal according to the FLM signal, and outputs a sequential input signal. The emission driving unit also includes an inverter circuit that receives the FLM signal according to the first clock signal, and that inverts the FLM signal to generate an inverter output signal. The emission driving unit also includes an output switching circuit that outputs a first voltage having a logic high level or a second voltage having a logic low level as an emission signal in response to the inverter output signal. The input signal generating circuit, the inverter circuit, and the output switching circuit are implemented by transistors of the same kind.
    Type: Application
    Filed: November 19, 2012
    Publication date: August 29, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventor: Samsung Display Co., Ltd.
  • Publication number: 20130222351
    Abstract: This disclosure provides systems, methods and apparatus for EMS devices. In one aspect, an EMS device includes an array of display elements and a plurality of driver lines with at least a portion of the plurality of driver lines routed above or below the array between one or more driver circuits and the array. In some implementations, at least a portion of the plurality of driver lines is disposed above a non-active area of the array. In one aspect, an EMS device can form a portion of at least one of the plurality of driver lines. In some implementations, movable layers of the array can be disposed between at least a portion of the plurality of driver lines and stationary electrodes of the display.
    Type: Application
    Filed: February 23, 2012
    Publication date: August 29, 2013
    Applicant: QUALCOMM MEMS Technologies, Inc.
    Inventors: Tsongming Kao, Charles Leu, Kostadin Djordjev, Rihui He
  • Patent number: 8519934
    Abstract: The present invention relates to a gate driver circuit and application of the same in a liquid crystal display (LCD) for improving the display performance thereof. The gate driver circuit includes at least one PMOS transistor and two NMOS transistors configured to modify a falling edge of a corresponding scanning signal according to a linear function that defines a waveform shape for the scanning signal.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: August 27, 2013
    Assignee: Au Optronics Corporation
    Inventors: Wen-Chiang Huang, Sheng-Kai Hsu
  • Patent number: 8514272
    Abstract: A directionally controlled illumination unit is disclosed that deflects light from activated illumination elements into visibility regions by a transmissive image reproduction means. The visibility regions are tracked by the eyes of different viewers to other positions in front of the display via a tracking unit and image control. To avoid a strong correlation of one pixel of the image reproduction means to a deflection element (electro-wetting cell) of a deflection means, the directionally controlled illumination unit comprises a two-dimensional illumination means in front of the image reproduction means arranged in a serial manner in the optical path and a deflection means containing at least one field having an arrangement of electro-wetting cells that can be discretely addressed in groups and adjusted with regard to their refractive behavior by the tracking unit and image control.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: August 20, 2013
    Assignee: Seereal Technologies S.A.
    Inventor: Stephan Reichelt
  • Patent number: 8508518
    Abstract: A pixel array section includes a plurality of pixel circuits disposed in a matrix and each including a driving transistor, a storage capacitor, an electro-optical element, and a sampling transistor. Each pixel circuit includes a pixel divided into a plurality of divisional pixels for each of which an electro-optical element is provided, and a test transistor provided between the driving transistor and the electro-optical elements for carrying out on/off operations for specifying whether or not the electro-optical element is a dark spot element so that the electro-optical element of the dark spot can be specified. The number of the test transistors is smaller than the number of the divisional elements of the original one pixel.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: August 13, 2013
    Assignee: Sony Corporation
    Inventors: Katsuhide Uchino, Tetsuro Yamamoto
  • Patent number: 8508522
    Abstract: Methods for producing a remote current for driving a load, include one of sourcing and sinking a local current, Iref, through a distributed impedance line, at a first node thereof; the other of sourcing and sinking a remote current, Iref, through the distributed impedance line in response to the local current Iref; determining a rate change of voltage of the first node; and sourcing or sinking additional current, into or out of the first node, in response to the rate of change of voltage of the first node in order to settle the voltage on the distributed impedance line, and apparatus for providing such are disclosed.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: August 13, 2013
    Assignee: Rochester Institute of Technology
    Inventors: Robert J. Bowman, Chris J. Nassar
  • Patent number: 8508559
    Abstract: A method of driving a light source includes converting a reference luminance value of the light source to a first just noticeable difference (JND) value. The JND value represents a minimum noticeable difference between two stimuli. A target luminance value lower than the reference luminance value is determined using the first JND value. A first driving signal applied to the light source is generated using the target luminance value so that a user may not notice a luminance change when a luminance value of a light source is decreased in order to decrease power consumption of a display apparatus.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: August 13, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nam-Ok Kwon, Jong-Seo Lee, Gi-Chang Park, Hoe-Rim Choe, Tae-Ho Kim
  • 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: 8497855
    Abstract: A scan driving apparatus, includes scan driving blocks, each including a first and a second input terminal where a frame start or a scan signal of an adjacent scan driving block is input during forward and backward direction driving, respectively, wherein each of the scan driving blocks transmits a first scan direction signal instructing forward scan driving to a first transistor adjusting a clock signal in accordance with a signal input to the first input terminal, transmits a second scan direction signal instructing backward scan driving to the first transistor in accordance with a signal input to the second input terminal, and outputs the clock signal as a corresponding scan signal, the even numbered ones of the scan driving blocks receive a first clock signal as the clock signal, the odd numbered ones of the scan driving blocks receive a second clock signal as the clock signal.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: July 30, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Seong-Il Park
  • Patent number: 8497831
    Abstract: An electro-optical device includes pixel electrodes corresponding to intersections of a plurality of scanning lines and a plurality of data lines and specific to the pixels, a common electrode facing the pixel electrode, and a switching element that establishes conduction between the data line and the pixel electrode when a selection voltage is applied to the scanning line, a control circuit that supplies a high voltage having a predetermined value and a low voltage lower than the high voltage alternately at predetermined intervals to the common electrode; a scanning line driving circuit that selects the plurality of scanning lines in a predetermined order and that applies the selection voltage to each of the selected scanning lines; and a data line driving circuit that supplies a data signal defining the grayscale levels of the pixels to the data lines in a period during which one of the scanning lines is selected and during which the voltage applied to the common electrode is maintained at the high voltage
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: July 30, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Akihiko Ito