Controlling The Condition Of Display Elements Patents (Class 345/214)
  • Patent number: 10732775
    Abstract: A touch sensor may include a substrate and may include electrode units, first demultiplexers, second demultiplexers, and driving pads all located on the substrate. The electrode units each may include a plurality of electrode groups, the electrode groups each including a plurality of touch electrodes. The first demultiplexers each may include a plurality of sub-demultiplexers and each may be electrically connected to a corresponding one of the electrode units. Each of the sub-demultiplexers of a first demultiplexer may be electrically connected to a corresponding one of the electrode groups of a corresponding electrode unit. The second demultiplexers may be connected between the first demultiplexers and the driving pads.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: August 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwa Jeong Kim, Jae Sic Lee, Na Yun Kwak, Dong Hwan Kim, Seung Woo Sung, Min Kyu Woo, Min Ku Lee, Seong Jun Lee, Sang Jin Pak, Sang Hyun Jun
  • Patent number: 10714011
    Abstract: A mobile electronic device includes a display having an active array and a reference array. The active array includes a pixel and the reference array includes a reference pixel. The mobile electronic device also includes processing circuitry communicatively coupled to the display. The processing circuitry is configured to instruct the active array to drive the pixel based at least in part on a current-voltage relationship of the pixel and a reference current-voltage relationship of the reference pixel.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: July 14, 2020
    Assignee: Apple Inc.
    Inventors: Sheng Zhang, Chih-Wei Yeh, Yunhui Hou, Chaohao Wang, Wei H. Yao, Paolo Sacchetto, Derek K. Shaeffer, Henry C. Jen, Shingo Hatanaka, Hasan Akyol, Mahdi Farrokh Baroughi, Hopil Bae
  • Patent number: 10706762
    Abstract: A display device is disclosed. The present display device comprises: a display unit of which the color gamut range varies according to the size of a driving current; and a processor for analyzing, per frame unit, the color distribution of an image signal, and adjusting, per frame unit, the size of the driving current on the basis of the analyzed color distribution such that the display unit operates within the color gamut range.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: July 7, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho-young Jung, Jee-young Yeom, Min-woo Lee, Won-hee Choe
  • Patent number: 10700730
    Abstract: A semiconductor device, includes: a data input pin; a data output pin; an internal circuit; a register accessible by the internal circuit; and a transceiver circuit including a transfer buffer and configured to: write data input through the data input pin to the transfer buffer, and output the data through the data output pin; and transfer data stored in the transfer buffer to the register when a transfer command is input through the data input pin.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: June 30, 2020
    Assignee: ROHM CO., LTD.
    Inventor: Norikazu Murakami
  • Patent number: 10679578
    Abstract: The display device includes drive circuits 301 provided in correspondence to the gate lines, respectively, and alternately switches a scanning period for scanning the gate lines and a non-scanning period during one vertical scanning period. The drive circuit 301 includes netA(n), an output switching element M5 connected to netA(n), and a reset circuit R. The output switching element M5 applies a selection voltage to the gate line GLn. The potential of netA(n) changes between a first potential that is equal to or higher than a threshold voltage of the output switching element M5, and a second potential that is lower than the first potential. In the drive circuit 301 wherein a period while netA(n) thereof has the second potential overlaps with the non-scanning period, the reset circuit R resets the potential of netA(n) to the second potential, before the resumption of the scanning period after the non-scanning period.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 9, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kohhei Tanaka, Kaoru Yamamoto, Tokihiro Yokono
  • Patent number: 10661432
    Abstract: A method of inductively coupling a first body and a second body is provided, wherein the first body rotates relative to the second body. During rotation, alignment is maintained between a first and second coil. Signals are sent and received between the coils.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: May 26, 2020
    Assignee: Sphero, Inc.
    Inventor: Richard Rhodes
  • Patent number: 10665169
    Abstract: Provided is an electroluminescent display device. The electroluminescent display device includes a display panel including a display area in which an image is displayed and a non-display area in which an image is not displayed. The electroluminescent display device further includes a subpixel including a subpixel circuit disposed in the display area and an electroluminescent element, wherein the subpixel circuit includes a driving transistor. The electroluminescent display device also includes a gate driver disposed in the non-display area, and a variable voltage output unit disposed in the non-display area and configured to supply a variable voltage to the subpixel. The variable voltage output unit selectively outputs an initialization voltage or a reference voltage to an anode of the electroluminescent element. Therefore, the anode of the electroluminescent element can be initialized using the initialization voltage during an initialization period.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: May 26, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventor: SungWook Chang
  • Patent number: 10665194
    Abstract: Provided are a liquid crystal display device and a driving method thereof. A first GOA circuit and a second GOA circuit are provided, and channel widths of thin film transistors in the first GOA circuit are greater than channel widths of thin film transistors in the second GOA circuit. When the ambient temperature is too high, the start signal and the clock signal are only outputted to the second GOA circuit to provide the scan signals. When the ambient temperature is too low, the start signal and the clock signal are only outputted to the first GOA circuit to provide the scan signals to the plurality of scan lines. When the ambient temperature is normal, the start signal and the clock signal are outputted to the first GOA circuit and the second GOA circuit to provide the scan signals to the plurality of scan lines at the same time.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: May 26, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xiangyang Xu
  • Patent number: 10664096
    Abstract: A detection apparatus includes a substrate, a plurality of first electrodes provided on the substrate, a first selection circuit provided on the substrate, the first selection circuit including a plurality of first input terminals that receive a first control signal supplied from an outside and a plurality of first output terminals that output a first selection signal based on the first control signal, and a second selection circuit provided on the substrate, the second selection circuit including a plurality of second input terminals that receive a second control signal supplied from the outside and a plurality of second output terminals that output a second selection signal based on the second control signal.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: May 26, 2020
    Assignee: Japan Display Inc.
    Inventors: Toshinori Uehara, Hayato Kurasawa
  • Patent number: 10657895
    Abstract: What is disclosed are systems and methods of compensation of images produced by active matrix light emitting diode device (AMOLED) and other emissive displays. Anomalies in luminance produced by pixel circuits and bias currents produced by current biasing circuits for driving current biased voltage programmed pixels are corrected through calibration and compensation while re-using existing data or other lines that can be controlled individually to perform said calibration and compensation.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: May 19, 2020
    Assignee: Ignis Innovation Inc.
    Inventors: Gholamreza Chaji, Yaser Azizi, Arash Moradi, Hongxin Liu
  • Patent number: 10629108
    Abstract: Embodiments of the present disclosure provide a shift register unit, which includes an input circuit configured to control a voltage of a first node based on an input signal and a first clock signal; an first control circuit configured to control a voltage of a second node based on a first voltage, the first clock signal, and the voltage of the first node; an second control circuit configured to control a voltage of a third node based on the voltage of the second node and a second clock signal; a first hold circuit configured to hold the voltage of the first node based on a second voltage and the voltage of the third node; a second hold circuit configured to hold the voltage of the second node and of the third node; and an output circuit configured to output the first voltage or the second voltage from an output terminal.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: April 21, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Minghua Xuan
  • Patent number: 10621904
    Abstract: A display circuit includes a switch component configured to output a data voltage signal to the latch component under control of a scanning signal; a latch component configured to output a first control signal under control of a reset signal in a case where the switch component is turned off, and output the first control signal or a second control signal to the charging component according to the data voltage signal in a case where the switch component is turned on; and a charging component configured to write a first signal to a display component in the case where the switch component is turned off, and in the case where the switch component is turned on, write the first signal to the display component under control of the first control signal and write a second signal to the display component under control of the second control signal.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: April 14, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhangmeng Wang, Xianjie Shao
  • Patent number: 10593257
    Abstract: A system and method for operating a display. In some embodiments, the method includes: retrieving from a memory a first encoded stress profile and a first set of symbol statistics; processing, by a first decoder, the first encoded stress profile with the first set of symbol statistics, to form: a first decoded stress profile, and a second set of symbol statistics; augmenting the first decoded stress profile to form a second stress profile; processing, by an encoder, the second stress profile with the second set of symbol statistics to form a second encoded stress profile; and saving, in the memory, the second encoded stress profile.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: March 17, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gregory W. Cook, Amin Mobasher
  • Patent number: 10586480
    Abstract: An apparatus and a method for sensing a display panel are provided. The apparatus includes a source driving circuit and a sensing circuit. The source driving circuit is coupled to data lines to drive the pixel circuits according to a display period comprising frame periods. The sensing circuit is coupled to a plurality of pixel circuits. The sensing circuit senses characteristics of the pixel circuits in the test data periods of the display period. The test data periods are periodically arranged in the display period. In each of the test data periods, a corresponding pixel circuit receives test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the scan-line periods of each of the frame periods, the corresponding pixel circuit receives display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: March 10, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chun-Chieh Lin, Shang-I Liu, Hua-Gang Chang
  • Patent number: 10585512
    Abstract: A touch display device includes: a timing controlling unit generating a touch synchronizing signal, an image data, a data controlling signal and a gate controlling signal; a micro controlling unit generating first to third selecting signals; a touch power unit including a MUX input part and a MUX part, the MUX input part deactivated during a display period and activated during a touch period, the MUX part generating a modified common voltage and first and second gate low voltages; a data driving unit generating a data voltage; a gate driving unit generating a modified gate voltage; and a touch display panel displaying an image during the display period and sensing a touch during the touch period.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: March 10, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ki-Jeong Lee, Yun-Jong Choi
  • Patent number: 10580380
    Abstract: The present disclosure provides a level conversion circuit, a display apparatus, and a driving method. The level conversion circuit includes a level conversion sub-circuit, a power supply switch sub-circuit, and a controller. The level conversion sub-circuit is connected to a first input terminal, the power supply switch sub-circuit, and an output terminal, respectively, and is configured to receive a first signal, receive a first driving level from the power supply switch sub-circuit, convert the received first signal into the first driving level, and output the first driving level to the output terminal.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: March 3, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liangliang Zheng, Tingting Jin
  • Patent number: 10580338
    Abstract: An organic light emitting display device includes a display panel including a plurality of active pixels in a display region, and a plurality of test pixels in a non-display region, a panel driver configured to provide the test pixels with data signals corresponding to a plurality of gray levels, and to drive the display panel, a readout circuit configured to measure sensing currents flowing through the test pixels, and a controller configured to obtain hysteresis characteristic values of the test pixels based on the sensing currents, to generate output image data by compensating input image data for the active pixels based on the hysteresis characteristic values of the test pixels to which the active pixels are mapped, and to control the panel driver to display an image based on the output image data.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: March 3, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jinwoo Park
  • Patent number: 10573241
    Abstract: Disclosed are a driving circuit and a display device, comprising a first scan driving circuit, a second scan driving circuit, a selector and at least one pixel unit; wherein the first scan driving circuit and the second scan driving circuit are respectively coupled to the selector and the selector is coupled to the at least one pixel unit; the selector outputs a first scanning signal of the first scan driving circuit to the at least one pixel unit in a first duration to make the at least one pixel unit in a display state; the selector outputs a second scanning signal of the second scan driving circuit to the at least one pixel unit in a second duration to make the at least one pixel unit in a compensation state; wherein the first duration and the second duration are different.
    Type: Grant
    Filed: November 25, 2017
    Date of Patent: February 25, 2020
    Assignee: Shenzhen China Star Optoelectronics Semiconductors Display Technology Co., Ltd
    Inventor: Longqiang Shi
  • Patent number: 10564752
    Abstract: A gate driver and a touch display apparatus thereof are provided. The gate driver includes a plurality of shift registers and at least one loop circuit. The shift registers provide multiple gate signals to a touch display module. The loop circuit is coupled in series with the shift registers and receives at least one touch switching signal to set a loop time of the loop circuit. The touch display module performs at least one touch scan during the loop time.
    Type: Grant
    Filed: April 1, 2018
    Date of Patent: February 18, 2020
    Assignee: Au Optronics Corporation
    Inventors: Chi-Cheng Chen, Gui-Wen Liu
  • Patent number: 10553659
    Abstract: An array test apparatus includes a signal transmission unit which transmits a data signal to each of a plurality of data lines of a low-temperature polysilicon (“LTPS”) substrate, a signal measurement unit which measures the data signal of each of the data lines of the LTPS substrate, a timer which generates a horizontal period for setting a section in which the data signal is transmitted from the signal transmission unit to each of the data lines and a section in which the data signal output from each of the data lines is measured by the signal measurement unit, and a determination unit which determines whether each of the data lines of the LTPS substrate is normal based on the data signal measured by the signal measurement unit.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Geol Kim, Si Joon Kim, Hee Seon Kim
  • Patent number: 10552111
    Abstract: A control device for controlling a display device including a plurality of light source assemblies arranged in rows and columns. The control device includes a camera configured to obtain at least one image of the display device including at least two activated light source assemblies in a first row and at least two activated light source assemblies in a first column; a controller configured to obtain a first intersecting point of a first straight line connecting the at least two light source assemblies of the first row and a second straight line connecting the at least two light source assemblies of the first column; and a display unit configured to display the first intersecting point. Further, the at least one image of the display device is an image in which at least one light source assembly positioned in the first row and the first column is deactivated.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: February 4, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Byungchang Cha, Sangjoon Park, Heeyoung Lim
  • Patent number: 10553140
    Abstract: Embodiments of the present disclosure invention disclose an inversion control circuit, a method for driving the same, a display panel, and a display device, and the inversion control circuit includes: an input circuit, a switching control circuit, a first output circuit, and a second output circuit. In the inversion control circuit according to the embodiment of the present disclosure, the four circuits cooperate with each other to thereby enable the potential of an input signal end to be opposite to the potential of an inverted signal output end, so that when the inversion control circuit is applicable to the display panel, a clock signal is used as an input signal, and an output signal is a clock signal opposite in phase.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: February 4, 2020
    Assignees: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.
    Inventors: Ruifang Du, Xiping Wang, Rui Ma, Xiaoye Ma
  • Patent number: 10553667
    Abstract: A display device, includes: a display area including an upper side, a lower side, a left side, a right side, and inclined corner portions where the upper, lower, left, and right sides meet; a demultiplexing circuit unit adjacent to the lower side of the display area and the corner portion connected thereto; and a scan transmission line which extends toward the display area from an outer side of the left side and overlaps with the demultiplexing circuit unit outside the corner portion, wherein the demultiplexing circuit unit includes a demultiplexer transistor, and the scan transmission line is formed of a different conductive layer from an electrode of a demultiplexer transistor.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: February 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Han Sung Bae, Se Ho Kim, Sun Ja Kwon, Dong Wook Kim, Jun Yong An, Sang Moo Choi, Jun Won Choi
  • Patent number: 10546548
    Abstract: The present disclosure provides a self-refresh display driving device, a driving method and a display device. The self-refresh display driving device includes a timing control module and a driving module, wherein the driving module includes a frame buffer. The timing control module enters a sleep mode when the self refresh display driving device enters the self-refresh mode.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: January 28, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Lv Cheng, Tao Ma
  • Patent number: 10546530
    Abstract: This disclosure relates to a pixel driving circuit for driving a pixel group with two adjacent pixel units. The pixel group includes a first pixel unit and a second pixel unit. Each pixel driving circuit is capable of driving the first pixel unit and the second pixel unit in one same pixel group. The pixel driving circuit includes a driving module, a first switching module, and a second switching module. The driving module includes a control terminal, a first connecting terminal, a second connecting terminal and a driving transistor, and the control terminal is capable of storing voltage, the driving module is configured to adjust and control the magnitude of an electrical signal passing through the driving transistor due to the voltage stored at the control terminal. A display device having the pixel driving circuit is also provided.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: January 28, 2020
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Kuo-Sheng Lee
  • Patent number: 10545242
    Abstract: A method for operating an electronic display includes receiving, using a controller, sensor data related to operational parameters of the electronic display based at least in part on illuminating a sense pixel of at least one row of pixels of the electronic display, wherein a first set of pixels below the at least one row of pixels renders a portion of a first image frame and a second set of pixels above the at least one row of pixels renders a portion of a second image frame. The method also includes adjusting, using the controller, image display on the electronic display based at least in part on the sensor data.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: January 28, 2020
    Assignee: Apple Inc.
    Inventors: Hung Sheng Lin, Hyunwoo Nho, Jie Won Ryu, Junhua Tan, Sun-Il Chang
  • Patent number: 10536621
    Abstract: To perform high-accurate correction while securing high-speed process, an image capturing apparatus comprises: an image capturing element having plural unit pixels; a first obtainer obtaining a pixel value of a first image generated by a first method, based on an output signal of the image capturing element; a second obtainer obtaining a pixel value of a second image for autofocus generated by a second method different from the first method, based on the output signal of the image capturing element; a first detector detecting a defective pixel based on the pixel value of the first image; a second detector detecting a defective pixel based on information of the defective pixel detected by the first detector and the pixel value of the second image; and a corrector correcting the second image, by correcting the pixel value of the second image corresponding to the defective pixel detected by the second detector.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: January 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshiyuki Okubo
  • Patent number: 10510292
    Abstract: Disclosed are an organic light emitting display device and a driving method thereof, which prevent an OLED of each pixel from being burned in even when still images are continuously displayed on a display panel. When a certain time elapses after a display panel enters a PSR mode of displaying a still image, a timing controller may progressively decrease the control duty ratio for controlling the luminance of the display panel. Also, the timing controller prevents the OLED from being burned in when a still image is displayed.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: December 17, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Haejong Jang
  • Patent number: 10510312
    Abstract: A gate driver includes a gate signal generating part, a switching part and a switching controlling part. The gate signal generating part is configured to generate a gate signal including a precharge time and a normal charge time using a compensated gate on voltage and a gate off voltage. The switching part is disposed between the gate signal generating part and a gate line. The switching part is configured to apply a compensated gate signal to the gate line. The switching controlling part is configured to generate a switching control signal for controlling an operation of the switching part.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: December 17, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Hyun Sim, Neung-Beom Lee, Dong-Joon Kwag, Soo-Yeon Kim, Jeong-Hyun Kim, Hyeon-Uk Won, Ji-Ye Lee, Hyeon-Woo Hwang
  • Patent number: 10504411
    Abstract: A display device according to an embodiment of the inventive concept includes a data driving unit, a gate driving unit, a signal control unit for controlling driving of the data driving unit and the gate driving unit, and a display panel. The data driving unit generates an internal clock signal for outputting data voltages corresponding to image data, and the display panel displays an image corresponding to the data voltages in response to a gate driving signal outputted from the gate driving unit. The data driving unit includes a filtering unit for converting a first frequency control signal received from the signal control unit so as to generate a second frequency control signal, and a clock training unit for training a clock signal received from the signal control unit so as to generate the internal clock signal in response to the second frequency control signal.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: December 10, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Wontae Kim, Taegon Im
  • Patent number: 10504447
    Abstract: The present disclosure provides a GOA unit of a light emitting control signal and its driving method, a GOA circuit and display device, relating to the field of display technology. And they can overcome the problems of a screen flickering or an abnormal display that the display device may have. The GOA unit of the light emitting control signal includes a potential control module, a pull-down module, a pull-up module and a writing module. The writing module is connected to a second voltage terminal, a signal control terminal, a signal output terminal, and outputs the voltage of the second voltage terminal to the signal output terminal.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: December 10, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Chuanyan Lan, Taehyun Kim
  • Patent number: 10504936
    Abstract: A stretchable display device includes: a first pixel substrate includes a first body part and a first hinge part connected to the first body part; a second pixel substrate includes a second body part and a second hinge part connected to the second body part. A second direction neighboring cutout pattern is disposed between the first hinge part connected to the first body part and the second hinge part connected to the second body part; a first power line disposed at the first hinge part connected to the first body part and a second power line disposed at a second hinge part is connected to the second body part. The first power line and second power line are disposed at substantially equal distances in the first direction based on a reference line extending in correspondence to the second direction neighboring cutout pattern.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: December 10, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gyung Soon Park, Il-Joo Kim, Jun Ki Jeong
  • Patent number: 10497454
    Abstract: A shift register and an operation method thereof as well as a gate driving circuit and a display device. The shift register includes The shift register includes an input module, a pull-up module, a pull-up control module, an output module, and a noise reducing module. It can reduce noises at the output terminal effectively.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: December 3, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma
  • Patent number: 10490151
    Abstract: A gate driving circuit provided in the disclosure comprises a pull-up control module configured to generate a first control signal when power is turned off, a pull-up output module configured to output a high potential under control of the first control signal, a pull-down control module configured to generate a second control signal when power is turned off, and a pull-down output module configured to output a low potential under control of the second control signal. Wherein, the output terminals of the pull-up output module and the pull-down output module are connected to the output terminal of a Nth-stage gate driving unit, and, when power is turned off, the pull-up output module and the pull-down output module together make the output terminal of the Nth-stage gate driving unit output the high potential. The image remained on the liquid crystal screen when power is turned off suddenly is cleaned quickly thereby.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: November 26, 2019
    Assignee: WUHAN CHINA STAR OPTOTELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Juncheng Xiao, Ronglei Dai
  • Patent number: 10483482
    Abstract: Provided is a display apparatus that compensates a drive transistor threshold to attain a highly precise structure. The display apparatus comprises a light emitting element including a first electrode, a second electrode and an organic light emitting layer disposed between the first electrode and the second electrode, and a pixel circuit including a capacitor and a drive transistor letting current according to voltage of the capacitor flow in the light emitting element. The pixel circuit stops supply of current to the light emitting element while connecting the capacitor to the first electrode.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: November 19, 2019
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventors: Yoshihiro Nonaka, Jiro Yanase, Kenichi Takatori
  • Patent number: 10477652
    Abstract: An operating device includes a display, a detector and a determiner. When the detector detects a designated position, the determiner determines whether or not a position corresponding to the designated position in a first layer is within a display region by first image data. When the position is within the display region, the determiner determines that the display region by the first image data is chosen. When the position is not in the display region, the determiner determines whether or not a position corresponding to the designated position in a second layer is within a display region by second image data. When the position in the second layer is within the display region by the second image data, the determiner determines that the display region by the second image data is chosen.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: November 12, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroshi Sugawara, Yuto Hidaka
  • Patent number: 10467963
    Abstract: A system for controlling a display in which each pixel circuit comprises a light-emitting device, a drive transistor, a storage capacitor, a reference voltage source, and a programming voltage source. The storage capacitor stores a voltage equal to the difference between the reference voltage and the programming voltage, and a controller supplies a programming voltage that is a calibrated voltage for a known target current, reads the actual current passing through the drive transistor to a monitor line, turns off the light emitting device while modifying the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, modifies the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, and determines a current corresponding to the modified calibrated voltage based on predetermined current-voltage characteristics of the drive transistor.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: November 5, 2019
    Assignee: Ignis Innovation Inc.
    Inventor: Gholamreza Chaji
  • Patent number: 10460686
    Abstract: Embodiments relate to a gate driving device including a reference voltage generator for generating a kickback compensating reference voltage, the kickback compensating reference voltage decreasing during one frame section based on a horizontal synchronization signal, and a gate output voltage generator for decreasing a kickback compensating voltage of a gate output voltage during one frame section based on the kickback compensating reference voltage.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: October 29, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tong Ill Kwak, Kl Hyun Pyun
  • Patent number: 10453368
    Abstract: An apparatus and a method for sensing a display panel are provided. The apparatus includes a source driving circuit and a sensing circuit. The source driving circuit is coupled to data lines to drive the pixel circuits according to a display period comprising frame periods. The sensing circuit is coupled to a plurality of pixel circuits. The sensing circuit senses characteristics of the pixel circuits in the test data periods of the display period. The test data periods are periodically arranged in the display period. In each of the test data periods, a corresponding pixel circuit receives test data, and the sensing circuit senses the electrical characteristic of the corresponding pixel circuit. In the scan-line periods of each of the frame periods, the corresponding pixel circuit receives display data from a corresponding data line, and the sensing circuit does not sense the corresponding pixel circuit.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: October 22, 2019
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chun-Chieh Lin, Shang-I Liu, Hua-Gang Chang
  • Patent number: 10431143
    Abstract: A shift register includes a first input circuit, a second input circuit, and a pull-up transistor. The first input circuit is coupled to a first input terminal and a first pull-up node, and configured to electrically connect the first input terminal to the first pull-up node when the first input terminal receives an active signal. The second input circuit is coupled to a second input terminal and a second pull-up node, and configured to electrically connect the second input terminal to the second pull-up node when the second input terminal receives an active signal. The pull-up transistor includes a first gate electrode coupled to the first pull-up node and a second gate electrode coupled to the second pull-up node.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: October 1, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONCIS TECHNOLOGY CO., LTD.
    Inventors: Miao Zhang, Mo Chen, Jing Sun, Wuxia Fu
  • Patent number: 10431142
    Abstract: A circuit includes an electroluminescent (EL) device, a transistor, a first capacitor and a second capacitor. The transistor, coupled between a supply voltage and the EL device, includes a gate coupled to a first node and a first terminal coupled to a second node. The first capacitor, coupled between the first node and the second node, is configured to reset the gate of the transistor to the supply voltage in response to a first control signal. The second capacitor, including a first end coupled to the second node and a second end to receive a second control signal, is configured to establish at the first terminal of the transistor a compensation voltage associated with a threshold voltage of the transistor in response to the second control signal. The transistor is configured to pass a current through the EL device. The current has a magnitude independent of the threshold voltage of the transistor.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: October 1, 2019
    Assignee: INT TECH CO., LTD.
    Inventor: Shih-Song Cheng
  • Patent number: 10431148
    Abstract: A module type display apparatus includes a communication interface configured to communicate with at least one external module type display apparatus; a display panel including a plurality of light emitting diodes (LEDs); a storage configured to store information regarding at least one of brightness and a color coordinate that is previously measured according to a characteristic of an LED among the plurality of light emitting diodes; at least one sensor configured to sense a characteristic of at least one LED; and a processor configured to set a target value based on at least one of second brightness and a second color coordinate received from the at least one external module type display apparatus, and control to adjust at least one of first brightness and first color coordinate of the at least one LED to have the target value, based on the information acquired from the storage.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: October 1, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-chul Kim, Kil-soo Jung, Woo-sung Shim
  • Patent number: 10410600
    Abstract: A display panel includes a signal generating circuit, a pixel array disposed adjacent to the signal generating circuit, and a plurality of gate driver circuits disposed adjacent to the signal generating circuit and the pixel array. The signal generating circuit is configured to provide a plurality of clock signals and a plurality of data signals. The gate driver circuits are configured to convert the clock signals to a plurality of gate signals and transfer the gate signals to the pixel array. The pixel array is configured to receive the gate signals and the data signals for display. Delays of the gate signals increase along a first direction, delays of the data signals increase along a second direction, and the second direction is opposite to the first direction. The signal generating circuit is further configured to calibrate the gate signals and the data signals.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: September 10, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Shiang-Lin Lian, Mei-Yi Li, Yu-Chieh Kuo
  • Patent number: 10403201
    Abstract: The present disclosure provides a pixel driving circuit, a pixel driving method, a, display panel and a display device. The pixel driving circuit includes a driving transistor, a storage capacitor, a switching control module, a writing control module and a light-emission control module. A gate electrode of the driving transistor is electrically connected to a first electrode of the driving transistor at a threshold compensation stage and a writing stage under the control of the switching control module, so as to write a threshold voltage of the driving transistor into the storage capacitor. A data voltage is written into a second electrode of the driving transistor at the writing stage under the control of the writing control module.
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: September 3, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaoxiang He, Bo Wu, Xiaojing Qi
  • Patent number: 10403211
    Abstract: An organic light emitting display device includes pixels, a sensor configured to extract at least one of deviation information of first transistors of the pixels and deterioration information of OLEDs of the pixels in a sensing period, and a converter configured to change a bit of first data input from the outside by using at least one of the deviation information and the deterioration information, and to generate second data, wherein a pixel at an ith horizontal line includes an OLED, a first transistor configured to control an amount of a current that flows from a first power source via the OLED in response to a voltage of a first node, second and third transistors configured to turn on when a scan signal is supplied to an ith scan line, and a fourth transistor configured to turn on when a control signal is supplied to an ith control line.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: September 3, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hai Jung In, Dong Gyu Kim, Bo Yong Chung
  • Patent number: 10394367
    Abstract: In a liquid crystal display device with a touch panel function, a second substrate has detection electrodes of a touch panel, each pixel has a pixel electrode and a counter electrode, the counter electrode is divided into a plurality of blocks, and the counter electrodes of the respective divided blocks are shared to the respective pixels of a plurality of display lines side by side, the counter electrodes of the respective divided blocks is also used as scanning electrodes of the touch panel, and a driver circuit is provided to apply a counter voltage and a touch panel scanning voltage to the counter electrodes of the respective divided blocks, and the driver circuit can adjust a supply start timing of the touch panel scanning voltage to be applied to the counter electrodes of the respective divided blocks.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: August 27, 2019
    Assignee: Japan Display Inc.
    Inventors: Shuuichirou Matsumoto, Yoshinori Aoki
  • Patent number: 10397149
    Abstract: A method, system and terminal for deleting a sent instant message in messaging communication have been disclosed. The method including: receiving from a first communication terminal, a delete request to delete a sent instant message which has been transmitted from the first communication terminal to a second communication terminal, wherein the delete request comprises an identification which identifies the sent instant message which is to be deleted; determining whether the sent instant message which is to be deleted has already been successfully forwarded to the second communication terminal; and if it is determined that the sent instant message which is to be deleted has already been successfully forwarded to the second communication terminal, forwarding the delete request to the second communication terminal to facilitate deletion of the sent instant message by the second communication terminal.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: August 27, 2019
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Yi Shan, Zhuo Tang, Jun Wang, Zhiyuan Lin, Zhenan Guan, Yuxuan Zhang
  • Patent number: 10361262
    Abstract: A pixel driving circuit using 4T1C pixel structure applied in an OLED display device is provided. The OLED display device senses a threshold voltage imposed on the TFT when the OLED display device is powered off or powered on and compensates the threshold voltage which is sensed in normal operating display for the driving current of the OLED, thereby reducing the influence of the threshold voltage imposed on the TFT on the driving current of the OLED and improving the display quality of the OLED display device.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 23, 2019
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd
    Inventor: Yuying Cai
  • Patent number: 10347207
    Abstract: A scan driver includes a plurality of stages to receive one or more clock signals, each of the plurality of stages to supply a carry signal to a corresponding first output terminal and to supply a scan signal to a corresponding second output terminal, corresponding to a voltage of a corresponding first node, and each of the plurality of stages including a reset unit, the reset unit to initialize the first node, the first output terminal, and the second output terminal, corresponding to a gate start pulse supplied to a corresponding reset input terminal.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: July 9, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Hee Kim, Ji Hye Lee, Chong Chul Chai
  • Patent number: 10339874
    Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a timing controller. The display panel displays an image. The gate driver outputs a gate signal to the display panel. The data driver includes a plurality of data driving chips which outputs data voltages to the display panel based on data signals. The timing controller adjusts a waveform of the data signals based on a temperature of the data driving chips.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: July 2, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyeonuk Won, Jang-Mi Lee, Wonjin Seo, Hyun-Sik Yoon