Display Power Source Patents (Class 345/211)
  • Patent number: 9883225
    Abstract: A portable terminal includes a receiving unit which receives content information, an external device communication unit which conducts communication with an external information device, a display unit which displays the content information received by the receiving unit, an acquiring unit which acquires identification information identifying the content information displayed by the display unit, an operation unit which receives an operation indication from a user, and a control unit which conducts control such that if a transmission indication of the identification information is received by the operation unit while the content information is being displayed, the identification information acquired by the acquiring unit is transmitted to the external information device and the display of the content information by the display unit is terminated.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: January 30, 2018
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Takashi Matsubara, Mayumi Nakade, Masahiro Yamazaki, Hiroyuki Higaki
  • Patent number: 9882072
    Abstract: Provided is a solar cell including a pair of electrodes, and a photoelectric conversion layer of chalcopyrite structure sandwiched between the pair of electrodes. At least one of the pair of electrodes, adapted to serve as a transparent electrode, has a nitrogen-containing layer composed with the use of an organic compound containing a nitrogen atom, and an electrode layer containing a metal of the Group 11 of the periodic table, which is provided to be laminated on the nitrogen-containing layer, thereby improving the photoelectric conversion efficiency.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: January 30, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yasushi Okubo, Hiroaki Itoh, Ayako Wachi, Hidekane Ozeki, Kazuhiro Yoshida, Takeshi Hakii
  • Patent number: 9883124
    Abstract: A solid-state imaging device includes a photodetecting unit, a row control unit, a column control unit, and a signal readout unit. The photodetecting unit includes M×N pixel units P(1,1) to P(M,N) two-dimensionally arrayed in M rows and N columns. Each pixel unit P(m,n) includes a photodiode PD, an amplifying transistor Tr1, a transfer transistor Tr2, a readout transistor Tr3, a first initialization transistor Tr4, and a second initialization transistor Tr5. One of the transfer transistor Tr2 and the first initialization transistor Tr4 performs an on/off operation based on a control signal output from the row control unit, and the other performs an on/off operation based on a control signal output from the column control unit.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: January 30, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Yukinobu Sugiyama, Kenta Endo
  • Patent number: 9876188
    Abstract: A second electrode (130) is superimposed on a first electrode (110). An organic layer (120) is positioned between the first electrode (110) and the second electrode (130). Furthermore, the organic layer (120) includes a light emitting layer (123). Furthermore, the organic layer (120) includes an alkali-containing layer (which is an electron transporting layer (125) in an example in the present drawing, and is hereinafter described as the electron transporting layer (125)) between the light emitting layer (123) and the second electrode (130). The electron transporting layer (125) includes an alkali metal. In the electron transporting layer (125), a content of the alkali metal as an elemental substance is greater than the content of a compound of the alkali metal.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: January 23, 2018
    Assignee: PIONEER CORPORATION
    Inventor: Yuhki Terao
  • Patent number: 9875685
    Abstract: A display device includes: a display including a plurality of pixels; and a controller configured to: receive an external input image signal, adjust the external input image signal to compensate for brightness deviations of the pixels, and transmit corresponding image data signals to the pixels, wherein the controller includes: a data input section configured to receive the external input image signal and transmit a test image data signal to the pixels through a data driver, a luminance information extracting section configured to: extract brightness information for the pixels after displaying a test image in accordance with the test image data signal, and calculate first, second, and third parameters, using the brightness information, and a data compensating section configured to generate the image data signals by adjusting the external input image signal based on the first, second, and third parameters.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: January 23, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Oh-Jo Kwon, Won-Tae Choi, Choong-Sun Shin, Jeong-Kyoo Kim
  • Patent number: 9875688
    Abstract: The present invention provides an AMOLED pixel driving circuit and a pixel driving method. The AMOLED pixel driving circuit utilizes a 6T2C structure, comprising a first, a second, a third, a fourth, a fifth and a sixth thin film transistors (T1, T2, T3, T4, T5, T6), a first, a second capacitors (C1, C2) and an organic light emitting diode (OLED), and the first thin film transistor (T1) is a drive thin film transistor, and the fifth thin film transistor (T5) is a switch thin film transistor; and a first control signal (G1), a second control signal (G2) and a third control signal (G3) are involved, and the three are combined with one another and correspond to a data signal writing stage (1), a whole compensation stage (2), a charging stage (3) and a light emitting stage (4) one after another. The threshold voltage changes of the drive thin film transistor and the organic light emitting diode can be effectively compensated to make the display brightness of the AMOLED more even and to raise the display quality.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: January 23, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Baixiang Han
  • Patent number: 9870737
    Abstract: A sensing circuit capable of simplifying a configuration of a data driver by reducing a size of a sensing circuit provided at each data driver, and an organic light emitting diode (OLED) display device having the same are provided. The sensing circuit includes N sampling and holding circuits, a scaler and an analog-digital converter.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: January 16, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: ChulWon Lee, SeungTae Kim
  • Patent number: 9866753
    Abstract: Disclosed herein is a method of operating an electronic device having a camera. The electronic device includes a camera, a display unit, a sensor unit configured to detect an external event value, an image processor configured to process data received through the camera into a preview image, and a main processor. The main processor is configured to switch from a preview mode to a ready mode when the external event value is detected by the sensor unit, wherein the preview mode comprises activation of the camera, the image processor to display the preview image on the display unit, and the ready mode comprises deactivation of the camera and the image processor and display of a ready mode image on the display unit.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: January 9, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeonghwan Min, Yoonnyung Kim, Sunghwan Moon, Kyungmin Park, Kwangman Ok, Junhyuk Lee, Sukjin Jung
  • Patent number: 9852684
    Abstract: Provided is a drive circuit that includes a scanning circuit configured to perform a first vertical scanning and a second vertical scanning on each of first and second display regions, adjacent to each other in a vertical direction in a display region including pixels, individually in one frame. The first vertical scanning causes light emission of each pixel to be performed, and the second vertical scanning causes light extinction of each pixel to be performed. The scanning circuit is configured to perform the first vertical scanning and the second vertical scanning to cause timing of starting the light emission of an n+1th frame for a first scanned row, adjacent to the first display region, in the second display region to be later than timing of ending the light emission of an n-th frame for a final scanned row, adjacent to the second display region, in the first display region.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: December 26, 2017
    Assignee: JOLED Inc.
    Inventors: Naobumi Toyomura, Tetsuro Yamamoto
  • Patent number: 9847061
    Abstract: An object of the present invention is to, in an organic EL display device in which an initialization voltage is applied, extend the time period usable to write a video voltage as compared with the conventional art. In order to achieve this object, the organic EL display device includes a plurality of pixels each including an organic EL element; a plurality of video lines that supply a video voltage to each of the plurality of pixels; a plurality of scanning lines that supply a scanning voltage to each of the plurality of pixels; a unit that supplies a selection scanning voltage concurrently to an N number of scanning lines among the plurality of scanning lines, and supplies an initialization voltage to each of the plurality of video lines, in a k'th scanning period; and a unit that supplies a selection scanning voltage sequentially to the N number of scanning lines, and supplies video voltages to each of the plurality of video lines, in (k+1)th through (k+N)th scanning periods respectively.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: December 19, 2017
    Assignee: Japan Display Inc.
    Inventor: Nobuhiro Takeda
  • Patent number: 9842553
    Abstract: A method of driving a display panel includes: generating a data signal having a difference between a number of positive frames and a number of negative frames; and displaying an image according to the data signal.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: December 12, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gi-Chang Lee, In-Soo Wang
  • Patent number: 9842686
    Abstract: A circuit for transferring wireless electrical energy through a lossy material is described. The circuit comprises a first inductive winding portion connected electrically in series to a second inductive winding portion and at least one capacitor. Interaction of the first or second inductive winding portions with an electromagnetic field emanating from an electrical power source causes electrical energy to be induced within the circuit. The first inductive winding portion is preferably positionable adjacent a first sidewall of a lossy material and the second inductive winding portion is preferably positionable adjacent the second and opposite sidewall of the lossy material. At least one intermediate substrate composed of a ferrite material is preferably positioned between the first and second inductive winding portions as a shield that minimizes electromagnetic field interference.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: December 12, 2017
    Assignee: Electrochem Solutions, Inc.
    Inventors: Brian R. Peterson, Eric Jankins
  • Patent number: 9840093
    Abstract: A light emitting elements drive control device includes: a supplying unit that supplies a common power source voltage to a plurality of light emitting elements whose light emission quantities are controlled individually by current controls; a determining unit that determines voltage ranges capable of assuring proper current control operations on the individual light emitting elements based on drive voltages for the respective light emitting elements that vary as the current controls are performed; and a setting unit that sets the power source voltage to be supplied from the supplying unit from a common voltage range of the voltage ranges determined by the determining unit.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: December 12, 2017
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Eigo Nakagawa, Akira Sakamoto, Chikaho Ikeda, Jun Isozaki
  • Patent number: 9837009
    Abstract: An apparatus for driving a display panel including a plurality of cells coupled to a plurality of gate lines and a plurality of data lines, a gate driver configured to output a gate selection signal to a shared gate line, and a data driver configured to output data signals to the cell array. The shared gate line includes a first gate line and a second gate line, the first and second gate lines sharing the gate selection signal.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: December 5, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hojung Kim, Hongseok Lee
  • Patent number: 9837034
    Abstract: A display device may include the following elements: a plurality of gate lines extending in a first direction; a plurality of data lines extending in a second direction; a gate driver configured for applying gate signals to the gate lines; a data driver configured for applying data voltages to the data lines; a plurality of pixels electrically connected to the plurality of gate lines and the plurality of data lines; and a control wire set that traverses overlaps an area of a first pixel of the plurality of pixels, electrically interconnects the gate driver and the data driver, and is configured to transmit a control signal from the data driver to the gate driver.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: December 5, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang-Chul Jung, Sun Hwa Lee, Il Gon Kim, Sang-Uk Lim, Jun Ki Jeong
  • Patent number: 9831826
    Abstract: The present invention provides a display substrate and a display device, belonging to the field of display technology. In view of the problem that the energy-saving techniques of an existing liquid crystal display have yet to be further developed and improved, the present invention provides the display substrate comprising photoelectric conversion element for converting light energy into electric energy and the display device including the above display substrate. According to the display substrate and the display device of the present invention, renewable light energy is converted into electric energy by using the photoelectric conversion elements to supply power to the display device, so that the energy consumption of an external power supply by the display device may be reduced, and further, non-renewable resources may be favorably saved.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: November 28, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chen Zhang, Fei Yang
  • Patent number: 9830008
    Abstract: An array substrate and a display panel are provided. The array substrate includes: a plurality of common electrodes, a first and a second signal line, wherein a common electrode insulated from the first signal line has a first slit in a part facing to the first signal line, a common electrode insulated from the second signal line has a second slit in a part facing to the second signal line, a resistance of the first signal line is greater than that of the second signal line, there are a first deviation distance between a projection of the first signal line and a middle position of the first slit and a second deviation distance between a projection of the second signal line and a middle position of the second slit, and the first deviation distance is smaller than the second deviation distance. Display performance and touch performance can be improved.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: November 28, 2017
    Assignees: Shanghai AVIC OPTO Electronics Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventor: Huijun Jin
  • Patent number: 9830856
    Abstract: A stage circuit includes a first driver, a second driver, a first output unit, a second output unit and a controller. The first driver controls voltages of first and second nodes, according to a first power source, a third power source, a start signal or a carry signal of a previous stage input to a first input terminal, and a clock signal supplied to a second input terminal. The second driver controls voltages of third and fourth nodes, according to voltages of the first power source, the third power source, the first input terminal and the first and second nodes. The first output unit outputs a carry signal to a first output terminal, according to voltages of the first power source, the second input terminal and the third and fourth nodes. The second output unit outputs a scan signal to a second output terminal, according to voltages of the second power source, the second input terminal and the third and fourth nodes. The controller is electrically coupled to the first output terminal and the second driver.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: November 28, 2017
    Assignees: Samsung Display Co., Ltd., Industry-University Cooperation Foundation Hanyang-University
    Inventors: Oh-Kyong Kwon, Yeong-Keun Kwon, Jong-Hee Kim, Ji-Sun Kim, Jae-Keun Lim, Chong-Chul Chai
  • Patent number: 9824657
    Abstract: A gate driving circuit and a liquid crystal display are provided, wherein the gate driving circuit comprises a gate pulse modulator and a controlling circuit, the controlling circuit comprises at least one sub controlling circuit; an input terminal of each sub controlling circuit of the at least one sub controlling circuit is connected to an output terminal of the gate pulse modulator; an output terminal of each sub controlling circuit is connected to a power source; the power source outputs a level signal to each sub controlling circuit; each sub controlling circuit controls a conduction between each sub controlling circuit and the gate pulse modulator according to the level signal, so as to control the gate driving circuit to output at least one gate driving voltage. The present disclosure may generate a plurality of gate driving voltages, thereby increasing the display effect of the liquid crystal display.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: November 21, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Xianming Zhang, Dan Cao
  • Patent number: 9818368
    Abstract: Embodiments of the present invention provide a pixel structure and a control method thereof and a display panel. The pixel structure comprises a plurality of sub-pixels, and a plurality of gate lines and a plurality of data lines that are crossed with each other, wherein the gate lines comprise a plurality of first gate lines and a plurality of second gate lines, each sub-pixel comprises a first part and a second part, and each sub-pixel comprises a first thin film transistor and a second thin film transistor, the first part is connected to a corresponding data line through the first thin film transistor, a gate of the first film transistor is connected to a corresponding first gate line, the first part and the second part of each sub-pixel are connected with each other through the second thin film transistor, and a gate of the second film transistor is connected to a corresponding second gate line.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: November 14, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yanbing Wu
  • Patent number: 9818371
    Abstract: The present invention discloses a method of correcting complexion color shift of LCD including obtaining accounting ratio of a complexion region of an image which will be shown in the LCD; comparing the accounting ratio of a complexion region to a predetermined value; and applying a first gamma value to conduct gamma correction of the data of red color, green color, and blue color if the accounting ratio is larger than the predetermined value; wherein the first gamma value is larger than 2.2. The present invention also discloses a system of correcting complexion color shift of LCD. The gamma value of front viewing angle of the LCD is increased. Accordingly, the gamma value of the image of big viewing angle approaches the curve of gamma value 2.2 more in the LCD and wash out of the complexion of the image of big viewing angle is eliminated.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: November 14, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Lixuan Chen, Chih-tsung Kang
  • Patent number: 9818373
    Abstract: A unit equivalent value acquiring unit acquires a normal-temperature unit equivalent use time ?tn by using a temperature sensor, first to third LUTs, and a first multiplying unit. An integration unit acquires an equivalent cumulative use time to by integrating the normal-temperature unit equivalent use time ?tn. A maximum value detecting unit detects a maximum equivalent cumulative use time tnmax. A dividing unit acquires a correction coefficient Kcmp by dividing total degradation E(tnmax,Tn) acquired by a fourth LUT by total degradation E(tn,Tn) acquired by a fifth LUT. Accordingly, there is provided a data processing device for a display device capable of preventing burn-in while suppressing time degradation of an electro-optical element and increase in the number of wires.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: November 14, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshifumi Ohta, Kengo Takahama
  • Patent number: 9818375
    Abstract: Provided are a liquid crystal display device and a drive method thereof, capable of promptly making an afterimage, which is visually recognized during pause drive, visually unrecognizable while suppressing power consumption. When updated image data is transmitted, a first refresh is performed by used of this image data, and a refresh pauses based on Ref_int just in the next two-frame period. Then, the second and third refreshes are consecutively performed, and a refresh pause is repeated until the next updated image data is transmitted. In this case, since a refresh can be performed three times in a short period after reception of the updated image data, it is possible to make liquid crystal molecules oriented in a direction corresponding to an applied voltage in a short time and make an afterimage visually unrecognizable.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: November 14, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takuya Sone, Noriyuki Tanaka
  • Patent number: 9812062
    Abstract: A display apparatus includes pixels connected to scan lines, data lines, and emission control lines. Each include includes an organic light-emitting diode (OLED), a first transistor to transfer driving current to the OLED based on a data signal, a second transistor to transfer the data signal to the first transistor based on a first scan signal having a gate-on voltage level during a data writing period, a first capacitor connected between a gate electrode of the first transistor and a first power source, and a second capacitor connected between a drain electrode of the first transistor and the first power source.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: November 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyungryul Kang, Cheolmin Kim
  • Patent number: 9812080
    Abstract: A driving mode switching method, a driving mode switching module and a display device are provided. The method comprises: acquiring a pre-processed reference image; identifying an image characteristic of the reference image; generating a color block set included in the reference image by dividing the reference image into color blocks in accordance with the identification of the image characteristic of the reference image; calculating a coupling voltage of each of the color blocks and a brightness difference corresponding to the coupling voltage in accordance with an order of the color blocks included in the color block set; determining a crosstalk in accordance with the brightness difference corresponding to the coupling voltage; and switching a driving mode in accordance with the crosstalk.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: November 7, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xinghua Li, Fucheng Yang, Seung Yik Park, Quanmin Zhong, Xue Jiang
  • Patent number: 9805668
    Abstract: We describe a method of reducing artefacts in an image displayed by an active matrix electro-optic display and display driver, the electro-optic display driver comprising a plurality of active matrix pixel drivers each driving a respective pixel of the electro-optic display, each active matrix pixel driver having an associated storage capacitor coupled to a common backplane connection of the display driver, pixels of the electro-optic display having a common pixel electrode, the method comprising: driving the electro-optic display with a null frame during a power-down procedure of the display.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: October 31, 2017
    Assignee: FLEXENABLE LIMITED
    Inventors: Tiziano Agostinelli, Jeremy Hills, David Gammie, Stephan Riedel, Boon Hean Pui
  • Patent number: 9799300
    Abstract: A voltage compensating circuit and a method thereof are disclosed. The circuit includes a first TFT circuit, a controlling circuit and a scan driving chip. An output terminal of the power management chip of the controlling circuit connects to a first terminal of the third resistor, a second terminal of the third resistor connects to a first terminal of the first resistor, the second terminal of the third resistor connects to a feedback terminal of the chip, the feedback terminal of the chip connects to a first terminal of the second resistor, a second terminal of the second resistor connects to a ground, a second terminal of the first resistor connects to an input terminal of the scan driving chip. A source of the first TFT connects to a first input terminal of the chip, a second input terminal of the chip connects to the first gate driving signal.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: October 24, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Zhi Xiong
  • Patent number: 9799298
    Abstract: A display device in which power consumed in an image holding period is suppressed. The display device includes a liquid crystal display panel which is driven by power supplied from a converter or a backup circuit. A fixed potential may be supplied and a capacitor may be charged with the use of the converter in a writing operation where a load is large, and the fixed potential may be preferentially supplied from the capacitor without using the converter in an image holding period when the load is small.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: October 24, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masahiko Hayakawa, Shinya Okano
  • Patent number: 9800750
    Abstract: An apparatus and method for saving power in an office machine having a display panel are provided. The method comprises setting the apparatus in an operation standby mode, detecting whether an error exists in the apparatus and turning on the display panel to display the error thereon when the error is detected. Furthermore, the apparatus keeps the display panel in an off state when the error is not detected. Thus, the exemplary embodiments of the present invention provide a power saving method of an office machine which prevents unnecessary power consumption during an operation of an office machine having a display panel.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: October 24, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jae-sung Lee
  • Patent number: 9798147
    Abstract: A near-eye display includes a light source, an optical system, and a phase map. The light source emits illumination light. The optical system is configured to receive the illumination light from the light source and output the illumination light as an in-phase wavefront. The phase map is configured to adjust a phase of the in-phase wavefront to form an image in response to being illuminated by the in-phase wavefront. The phase map is pre-recorded with a phase pattern that generates the image.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: October 24, 2017
    Assignee: Verily Life Sciences LLC
    Inventors: Sohyun Park, Igor Landau
  • Patent number: 9799297
    Abstract: A driving method for a display panel is disclosed. The method comprises: when the display panel is under a power-on initialization stage, controlling the pixel unit and the data driver to be disconnected, and after the display panel finishes the power-on initialization stage, controlling the pixel unit and the data driver to be connected such that the data driver provides the data signal to drive the display panel. A display panel is also disclosed. Through above way, the preset invention can avoid a flicker phenomenon generated at a power-on moment of the display panel.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: October 24, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Jingjing Wu, Dongsheng Guo
  • Patent number: 9794629
    Abstract: A portable terminal includes a receiving unit which receives content information, an external device communication unit which conducts communication with an external information device, a display unit which displays the content information received by the receiving unit, an acquiring unit which acquires identification information identifying the content information displayed by the display unit, an operation unit which receives an operation indication from a user, and a control unit which conducts control such that if a transmission indication of the identification information is received by the operation unit while the content information is being displayed, the identification information acquired by the acquiring unit is transmitted to the external information device and the display of the content information by the display unit is terminated.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: October 17, 2017
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Takashi Matsubara, Mayumi Nakade, Masahiro Yamazaki, Hiroyuki Higaki
  • Patent number: 9786255
    Abstract: A method, computer program product, and system for adjusting a dynamic refresh frequency of a display device are disclosed. The method includes the steps of obtaining a current frame duration associated with a first image, computing, based on the current frame duration, a repetition value for a second image, and repeating presentation of the second image on a display device based on the repetition value. The logic for implementing the method may be included in a graphics processing unit or within the display device itself.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: October 10, 2017
    Assignee: NVIDIA Corporation
    Inventors: Tom Verbeure, Robert Jan Schutten, Gerrit A. Slavenburg, Thomas F. Fox
  • Patent number: 9786730
    Abstract: An organic light emitting device includes: a first transistor including a source electrode connected to a data line and a gate electrode connected to a scan line; a second transistor including a source electrode connected to a driving voltage and a gate electrode connected to a drain electrode of the first transistor; a capacitor connected between the gate electrode of the second transistor and the source electrode of the second transistor; an organic light emitting diode connected to a drain electrode of the second transistor; and a third transistor connected to the organic light emitting diode and a common voltage.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 10, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Jin Cho, Deok-Young Choi, Young-In Hwang, Chul Kyu Kang, Yong Jae Kim
  • Patent number: 9779656
    Abstract: A pixel driving method of a display panel is disclosed. The display panel includes a plurality of scan lines, data lines and pixels. Each of the pixel includes a first transistor with a first end coupled to the data line, and a gate end coupled to the scan line, a second transistor with a first end selectively coupled to a voltage source or current source, and a gate end coupled to a second end of the first transistor, and a light-emitting unit with a first end coupled to a second end of the second transistor. The method includes turning on the first transistors of the pixels; coupling the data lines and first ends of the second transistors to the current source; reading voltage levels of gate ends of the second transistors; and providing corresponding data voltages to the pixels according to voltage levels of gate ends of the second transistors.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: October 3, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Chun-Chieh Lin, Chih-Cheng Chen
  • Patent number: 9779660
    Abstract: A pixel cell driving circuit driving an organic electric lighting component comprises a first, a second and a third thin film transistors and a storage capacitor. The first thin film transistor is turned on or turned off under a control of a first scanning signal. When the first thin film transistor is turned on, the storage capacitor is charged by a data signal. The second thin film transistor is turned on under an action of the storage capacitor and drives an OLED. The third thin film transistor is turned on under a control of the second scanning signal when the first thin film transistor is turned off, and the storage capacitor is charged by a charging signal. The pixel cell driving circuit may effectively avoid the flicker due to the electrical charge leakage of the storage capacitor. The disclosure further provides a pixel cell and a pixel cell driving method.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: October 3, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Jiangbo Yao
  • Patent number: 9779667
    Abstract: Provided is an organic light emitting display device including: a display panel including data lines, scan lines, and pixels coupled to the data lines and the scan lines; a digital data converter configured to calculate a panel load utilizing digital video data, and to convert the digital video data such that peak luminance of the pixels have a maximum value when the panel load is equal to or less than a limit value; a data driver configured to convert digital conversion data, which has been converted by the digital data converter, into data voltages, and to supply the data voltages to the data lines; and a scan driver configured to provide scan signals to the scan lines.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: October 3, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chai-Hoon Lim, Sang-Myeon Han, Baek-Woon Lee
  • Patent number: 9779661
    Abstract: A pixel circuit comprising two sub pixel circuits, each of which includes: five switching units, a driving unit, an energy storage unit and an electroluminescent unit. A first switching unit, a second switching unit and a fifth switching unit of a first sub pixel circuit and a first switching unit, a second switching unit and a fifth switching unit of a second sub pixel circuit share a scanning signal line. In the pixel circuit, the operating current flowing through the electroluminescent unit is not affected by the threshold voltage of the corresponding driving transistor, which solves the problem of non-uniformity of display luminance because of the threshold voltage drift of the driving transistor.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: October 3, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Shengji Yang
  • Patent number: 9774325
    Abstract: A gate driver and a display device including the gate driver are provided which can prevent an abnormal output of a gate-high voltage from a stage by stably maintaining a discharge potential of a pull-up node. The gate driver includes a plurality of stages, and each stage includes a pull-up transistor that outputs a clock signal input to a first clock terminal to an output terminal depending on a voltage of a pull-up node; a pull-down transistor that outputs a first source voltage input to a first source voltage terminal to the output terminal depending on a voltage of a pull-down node; and a first noise removing unit that supplies a gate-off voltage to the pull-up node to remove noise of the pull-up node in response to the clock signal input to the first clock terminal.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: September 26, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: DongSoo Kim, Hun Jeoung, SangHee Yu, SungHyun Cho, BoSun Lee, Sungwook Chang
  • Patent number: 9772672
    Abstract: Apparatuses, methods, and program products are disclosed for projecting battery usage. By use of a processor, an expected battery usage rate of an application is determined. An estimated length of time a battery will power an apparatus if the application is executed is determined. The estimated length of time the battery will power the apparatus may be based on the expected battery usage rate of the application and a current remaining battery power. The estimated length of time together with a visual representation of the application is displayed.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: September 26, 2017
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Scott Wentao Li, Zhenglong Bai, Marco Alberto Gonzalez, Robert James Kapinos
  • Patent number: 9767731
    Abstract: A display device includes a pixel array section, the pixel array section having pixels arranged in a matrix form, at least one of the pixels including an electro-optical element, a write transistor, a capacitor, a drive transistor, and a switching transistor. A write scan line is disposed for each pixel row of the pixel array section and adapted to convey a write signal to be applied to a gate electrode of the write transistor. The wiring structure of the write scan line does not cross a wiring pattern connected to a gate electrode of the drive transistor.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: September 19, 2017
    Assignee: Sony Corporation
    Inventor: Takao Tanikame
  • Patent number: 9753527
    Abstract: One disclosed method includes registering a graphics buffer with a kernel running on a first processor, storing the registered graphics buffer in memory initially without drawing the graphics buffer to a display, and passing the registered graphics buffer to a kernel display driver directly to draw the graphics buffer to the display, in response to a trigger. The method may further include informing a second processor of the registered graphics buffer and receiving the trigger by the kernel as a message from the second processor. The first processor may receive the trigger as a wake command from the second processor while the first processor is in sleep mode. A partial resume of the kernel is then performed while preventing activation of user space on the primary processor, and the graphics buffer is drawn on the display without using an operating system graphics pipeline of the user space.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: September 5, 2017
    Assignee: Google Technology Holdings LLC
    Inventors: Nathan M Connell, Parikshit Dharawat, Christian L Flowers, Jared S Suttles, Joseph Swantek, Haitang Wang
  • Patent number: 9754525
    Abstract: A display panel and a driving method thereof and a display device are disclosed, and the display panel includes two sets of pixel driving circuits; and, for every two adjacent pixel columns for each primary color, an operating voltage line for one pixel column is connected to a first set of pixel driving circuits via a connection point located at a side of a pixel array where the pixels in the first row of a pixel array are located, and an operating voltage line for the other pixel column which is connected to the second set of pixel driving circuits via a connection point located at a side of the pixel array where the pixels in the last row of the pixel array are located. The display panel can ensure the uniformity of the display luminance of the whole display panel.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: September 5, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventor: Haidong Wu
  • Patent number: 9747841
    Abstract: An electro-optical device selects a detection target pixel independently and obtains correction data to perform a correction operation. Under a control of the electro-optical device, remaining pixels other than the detection target pixel emit light to display an image.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: August 29, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Masayuki Kumeta, Takeshi Okuno, Eiji Kanda
  • Patent number: 9741288
    Abstract: A pixel circuit, an organic electroluminescent display panel and a display apparatus are provided. The pixel circuit comprises: a light-emitting device (D1), a drive control module (1), a reset control module (2), a charge control module (3) and a light-emitting control module (4). The reset control module (2) is used for resetting the light-emitting device (D1) in an internal compensation mode, and exporting a current signal of the drive control module (1) for driving the light-emitting device (D1) and comparing the same with a preset standard current value to determine a compensation factor in an external compensation mode. The charge control module (3) is used for charging and writing a data signal (Data) into the drive control module (1) in the internal compensation mode and writing the data signal (Data) into the drive control module (1) in the external compensation mode.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: August 22, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yuting Zhang
  • Patent number: 9742356
    Abstract: Power consumption of a signal processing circuit is reduced. Further, power consumption of a semiconductor device including the signal processing circuit is reduced. The signal processing circuit includes a reference voltage generation circuit, a voltage divider circuit, an operational amplifier, a bias circuit for supplying bias current to the operational amplifier, and first and second holding circuits. The first holding circuit is connected between the reference voltage generation circuit and the bias circuit. The second holding circuit is connected between the voltage divider circuit and a non-inverting input terminal of the operational amplifier. Reference voltage from the reference voltage generation circuit and reference voltage from the voltage divider circuit can be held in the first and second holding circuits, respectively, so that the reference voltage generation circuit can stop operating. Thus, power consumption of the reference voltage generation circuit can be reduced.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: August 22, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kei Takahashi, Yoshifumi Tanada
  • Patent number: 9740333
    Abstract: A detecting method and a manufacturing method of an embedded type touch panel are provided. The detecting method includes steps of: supplying first touch electrodes and second touch electrodes alternately arranged at least on a first direction with different voltages via corresponding touch-control wires to make display areas where the first touch electrodes are located and display areas where the second touch electrodes are located have different luminances, and at least determining neighboring first touch electrode and second touch electrode on the first direction whether are short-circuited or not according to the luminances of the display areas where the first touch electrodes are located and the luminances of the display areas where the second touch electrodes are located. By the above solution, the invention can simply and effectively realize a detection of touch panel.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: August 22, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Chun-hung Huang, Xiaoping Tan, Yujie Bai
  • Patent number: 9733683
    Abstract: A motherboard includes a power module, a display module, a control module, and a protection module. The protection module is coupled to the power module, the display module, and the control module. The control module is capable of outputting a first control signal to control the protection module to connect the power module to the display module to be powered by the power module or disconnect the power module from the display module.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: August 15, 2017
    Assignees: HONG FU JIN PRECISION INDUSTRY (WuHan) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Gui Chang, Chun-Sheng Chen
  • Patent number: 9734755
    Abstract: A transparent display panel includes first through (N)-th vertical constant voltage lines (N is a natural number), first through (M)-th horizontal constant voltage line groups (M is a natural number), and a plurality of transparent pixels. The transparent pixels are disposed within a grid defined by the first through (N)-th vertical constant voltage lines and the first through (M)-th horizontal constant voltage line groups. The transparent pixels operate based on constant voltages transferred through the first through (N)-th vertical constant voltage lines and the first through (M)-th horizontal constant voltage line groups. The first through (N)-th vertical constant voltage lines include first vertical constant voltage lines and second vertical constant voltage lines. Each of the first through (M)-th horizontal constant voltage line groups includes a first horizontal constant voltage line and a second horizontal constant voltage line.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: August 15, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-Ho Lee, Gyung-Soon Park
  • Patent number: 9728136
    Abstract: An organic light emitting diode (OLED) display device includes: a display panel including a first through (2M)-th row pixel blocks; a data driver including a first data driving unit to provide N odd row data signals to (2K?1)-th row pixel blocks and a second data driving unit to provide N even row data signals to (2K)-th row pixel blocks; a scan driver including a first scan driving unit configured to provide (2K?1)-th scan signals to (2K?1)-th row pixel blocks and a second scan driving unit configured to provide (2K)-th scan signals to (2K)-th row pixel blocks. The first frame period includes an activation period and a vertical blank period. The first scan driving unit is configured to activate the (2K?1)-th scan signals sequentially in pulse form in an activation period.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: August 8, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Hak Pyo, Jae-Hoon Lee