Liquid Crystal Display Elements (lcd) Patents (Class 345/87)
  • Patent number: 10499476
    Abstract: A display device includes a display panel including a display area where a plurality of pixels are disposed and a non-display area where no pixel is disposed, the display panel having at least one through-hole disposed in the non-display area and penetrating the display panel, and an insertion member disposed in the through-hole and having a hollow space therein.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: December 3, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Oh June Kwon, Seung Yong Song
  • Patent number: 10488686
    Abstract: A system such as a vehicle may have window that exhibit adjustable transparency. The windows may include liquid crystal devices and polymer dispersed liquid crystal devices that exhibit adjustable amounts of light transmission and haze. An optical property of a window such as window transparency may be modulated using an alternating-current modulation waveform. Modulation of the transparency of the window may be synchronized with modulated light output from a light source. The light source may be located inside the vehicle or may be located outside of the vehicle. By synchronizing the modulation of the transparency of the window with the light source output, privacy may be enhanced or glare may be reduced.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: November 26, 2019
    Assignee: Apple Inc.
    Inventors: Martin Melcher, James R. Wilson, Clarisse Mazuir, David E. Kingman
  • Patent number: 10491812
    Abstract: Techniques are disclosed to control a camera device such that memory contention and power consumption is reduced during video processing routines, generally referred to herein as media tasks. In particular, a workload scheduler is implemented in a camera HAL and is configured to dispatch captured image frames in an alternating manner between competing media tasks such that the processing of those image frames is performed sequentially, and thus, eliminates or otherwise mitigates memory contention. To this end, techniques variously disclosed herein can be used to enable low-cost, low-memory configured devices to perform concurrent media tasks on captured high-definition video at high framerates, without an undesirable decrease in performance and an increase in power consumption.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: November 26, 2019
    Assignee: Intel Corporation
    Inventors: Yunbiao Lin, Jianhui Dai, Ning Luo, Chunbo Chen
  • Patent number: 10488896
    Abstract: A display housing for a digital display screen, in one embodiment comprising a display screen enclosure adapted to receive a display screen and a computer housing arranged to receive a computer associated with the display screen for providing display content thereto. The computer housing has at least one air intake arranged at a first surface thereof and at least one air outlet arranged at a second surface thereof to define an airflow path between the at least one air intake and the at least one air outlet. The computer housing is adapted to receive the computer at a location in the airflow path and the display screen enclosure is arranged relative to the computer housing such that a fan disposed in a rear portion of a display screen received in the display screen enclosure is located adjacent the at least one air outlet of the computer housing during use.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: November 26, 2019
    Assignee: Coates Technology Labs Pty Limited
    Inventor: Matthew William Simpson
  • Patent number: 10482831
    Abstract: A display apparatus includes a plurality of pixels arranged in rows and columns, each pixel column extends in a first direction and each pixel row extends in a second direction crossing the first direction, a first data line extending in the first direction and configured to transfer a data voltage to pixels included in at least two pixel columns, and for each pixel row, a first gate line extending in the second direction and disposed at a first side of the pixel row, and a second gate line extending in the second direction and disposed at a second side of the pixel row, the first and second sides of the pixel row are opposite to each other. In a pair of adjacent pixel columns, pixels, which are connected to the first gate line of their respective pixel row, are arranged in a zigzag arrangement in the first direction.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: November 19, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung-Won Kim, Dongwon Park, Jaesung Bae, Nam-Gon Choi
  • Patent number: 10482805
    Abstract: A display controller comprises a buffer configured to store first pixel data input to a source line during a first period, and second pixel data input to the source line during a second period, subsequent to the first period, and a data generating unit configured to generate control data by comparing each of the first pixel data and the second pixel data with desired reference data, and transfer the second pixel data and the control data to a source driver driving the source line.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: November 19, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chiahsin Lin, Jae Yoon Kim, Stanley Liao
  • Patent number: 10482807
    Abstract: The present disclosure relates to an interface device for high resolution liquid crystal device (LCD). The interface device includes a first connector configured to receive low voltage differential signals (LVDS) provided for a left-half active area of the LCD, a second connector configured to receive the LVDS provided for a right-half active area of the LCD, and a third connector configured to receive operational voltage signals and control signals provided for the LCD. The present disclosure also relates to a LCD with the above interface device. With such configuration, the data signals and the control signals are not mixed to enhance the signal quality, and the display performance of the LCD may not be affected.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: November 19, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Zhao Wang, Yu-yeh Chen, Yin-hung Chen, Yu Wu
  • Patent number: 10484672
    Abstract: A naked eye three-dimensional (3D) display device is provided and has a display panel and a liquid crystal lens located on a light-emitting side of the display panel. The display panel has a first glass substrate, organic light-emitting diode (OLED) device. The liquid crystal lens has a first thin film package layer, a first transparent electrode, a second glass substrate, a second transparent electrode and a liquid crystal layer located between the second transparent electrode and the first transparent electrode.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: November 19, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wei Yu
  • Patent number: 10482818
    Abstract: A display device includes pixels coupled to scan lines, emission control lines, and data lines, a scan driver configured to supply scan signals to the pixels through the scan lines, an emission driver configured to supply emission control signals to the pixels through the emission control lines, and a data driver configured to supply data signals to the pixels through the data lines, wherein the emission driver is configured to supply the emission control signals for each one of sub-periods in one frame period, and wherein a width of the emission control signals in any one sub-period from among the sub-periods is different from that of the emission control signals in another sub-period from among the sub-periods.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: November 19, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Hoon Kwon, Ji Hyun Ka, Min Ku Lee, Seung Ji Cha, Hyun Uk Oh, Jin Tae Jeong
  • Patent number: 10482833
    Abstract: An operation method of a display device with high visibility is to be provided. The display device is an electronic device including a first display element, a second display element, an optical sensor, and a gain calculation circuit. In the electronic device, the illuminance of external light is obtained with the optical sensor, and depending on the illuminance, images displayed using the first display element and the second display element are corrected. The gain calculation circuit obtains the illuminance and calculates a gain value depending on the illuminance. In particular, the gain value is calculated for each of the first display element and the second display element. Furthermore, the gain calculation circuit performs dimming and toning on image data displayed using the first display element and the second display element by multiplying the image data by the gain values or values corresponding to the gain values.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: November 19, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Yuki Okamoto
  • Patent number: 10475378
    Abstract: An organic light emitting display device includes a display panel including a pixel at an intersection of a data line, a feedback line, and a scan line; a data driver configured to provide a data signal to the pixel through the data line; and a sensing unit configured to generate a reference voltage based on the data signal, to generate first sensing data based on a sensing current that flows through the feedback line in response to the reference voltage, and to generate second sensing data by digital-converting the reference voltage.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: November 12, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Gil-Jae Lee
  • Patent number: 10477170
    Abstract: Undesirably high energy-consumption in illuminating devices can be caused at least in part by wasted (attenuated) light. Optically efficient illumination systems that may be used to project light, including images, use light redirection. Phase modulating devices may be applied to create desired light fields. Some embodiments provide dual or multiple modulation display or projection systems in which some or all of the modulators not only attenuate amplitude, but also amplify amplitude, or change the phase, frequency and polarization of the light provided by the light source.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: November 12, 2019
    Assignee: MTT Innovation Incorporated
    Inventors: Gerwin Damberg, Anders Ballestad
  • Patent number: 10475380
    Abstract: An organic light-emitting display apparatus includes: a plurality of emitting pixels coupled to a plurality of scan lines extending in a row direction and a plurality of data lines extending in a column direction; a plurality of dummy pixels arranged in the row direction; a plurality of first repair lines extending in the column direction, that are coupled to the plurality of dummy pixels, and that are adapted to be coupled to the plurality of emitting pixels; a plurality of second repair lines extending in the column direction, and that are coupled to the plurality of dummy pixels; and a plurality of repair switching devices arranged in a matrix array and adapted to be coupled to the plurality of scan lines and the plurality of second repair lines and adapted to be coupled to the plurality of data lines.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: November 12, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-In Hwang, Young-Jin Cho, Dong-Gyu Kim
  • Patent number: 10475404
    Abstract: A driving method of scan lines in a display panel and a driving device thereof are described. The driving method of scan lines includes the steps of dividing a plurality of frames into a first frame set and a second frame set, and turning on the scan lines of each frame in the first frame set by using a forward scan direction and turning on the scan lines in the second frame set by a backward scan direction.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: November 12, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Liyang An
  • Patent number: 10467974
    Abstract: A display driver for driving a display panel includes a test control unit that generates n test data each designating a brightness gradation for each pixel of the panel, and controls a connected-state test for testing the display panel in a connected-state where the display panel and the display driver are electrically connected and a disconnected-state test for testing the display driver in a disconnected-state where the display panel and the display driver are electrically disconnected, a voltage converter that generates n pixel drive voltages from the n test data, an output unit that supplies each of the n pixel drive voltages to a corresponding data line in the connected-state, and a fault evaluator that outputs a test result signal including a fault or a no-fault in the connected-state and the disconnected-state by checking if each of the n pixel drive voltages is within an acceptable gradation voltage range.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: November 5, 2019
    Assignee: LAPIS Semiconductor Co., Ltd.
    Inventor: Shinichi Satoh
  • Patent number: 10466518
    Abstract: The embodiments of the present disclosure provide a driving method and driving apparatus of a display panel. The driving method comprises: dividing a driving period into N sub-periods, each of which is further divided into a first time period and a second time period, where N is a positive integer greater than or equal to 1; and applying a first common voltage to a first common electrode in the first time period and applying a second common voltage to the first common electrode in the second time period, wherein the second time period is longer than the first time period in duration. In the present disclosure, a common voltage in a modulation mode is applied to the first common electrode, so that an average arrangement direction of liquid crystal molecules in a pixel unit changes in a driving period.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: November 5, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yoon Sung Um, Liwei Liu, Zheng Fang, Yue Jia
  • Patent number: 10461098
    Abstract: An aperture ratio of a semiconductor device is improved. A driver circuit and a pixel are provided over one substrate, and a first thin film transistor in the driver circuit and a second thin film transistor in the pixel each include a gate electrode layer, a gate insulating layer over the gate electrode layer, an oxide semiconductor layer over the gate insulating layer, source and drain electrode layers over the oxide semiconductor layer, and an oxide insulating layer in contact with part of the oxide semiconductor layer over the gate insulating layer, the oxide semiconductor layer, and the source and drain electrode layers. The gate electrode layer, the gate insulating layer, the oxide semiconductor layer, the source and drain electrode layers, and the oxide insulating layer of the second thin film transistor each have a light-transmitting property.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: October 29, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Junichiro Sakata, Hiroyuki Miyake, Hideaki Kuwabara, Tatsuya Takahashi
  • Patent number: 10460648
    Abstract: A method for controlling a display panel includes steps of: providing a display panel, where the display panel includes a plurality of pixels arranged into a plurality of columns and rows and a plurality of data lines, where one of the data lines is coupled to pixels arranged in odd number rows of one of two columns which are adjacent to the one of the data lines, and coupled to pixels arranged in even number rows of the other one of two columns which are adjacent to the one of the data lines; receiving the data signals in a driving manner of column inversion by the data lines during a display period; and receiving the data signals in a driving manner of N-dot inversion by the data lines during a blanking period.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 29, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Pei-Chun Liao, Cheng-Ta Yang
  • Patent number: 10459562
    Abstract: An array substrate, a display panel, and an electronic device are provided. The array assembly includes: a substrate defining a display region and a peripheral region; gate lines and data lines which are set in the display region; touch control electrodes which are set in the display region and electrically isolated; and a first metal layer set on the substrate, which includes: touch control lines set in the display region, wherein each of the touch control lines is electrically connected with corresponding touch control electrode, and adapted to provide a first signal for the corresponding touch control electrode; and a first BUS line set in the peripheral region, where the first BUS line is adapted to provide a second signal for at least one of the touch control lines, the gate lines, and the data lines Accordingly, BUS lines are arranged on different metal layers, thus narrow frame is achieved.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: October 29, 2019
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Chao Wang
  • Patent number: 10453379
    Abstract: A display apparatus includes: a plurality of pixels arranged in a row-column configuration and divided into a plurality of units each including a plurality of rows; a plurality of scanning signal lines configured to select one row from the pixels; a plurality of pixel signal lines configured to supply pixel signals to the one row; a control circuit configured to output an image signal in which the pixel signals are time-division multiplexed and a plurality of separation control signals for separating the pixel signals from the image signal; and a separation circuit including signal lines and configured to separate the pixel signals from the image signal and output the pixel signals to the pixel signal lines based on the separation control signals. The control circuit switches ends to be supplied with the separation control signals between first ends and second ends of the signal lines in each unit.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: October 22, 2019
    Assignee: Japan Display Inc.
    Inventor: Ryutaro Nitobe
  • Patent number: 10452218
    Abstract: A display device with less power consumption. The display device operates in a still image display period and a moving image display period, and includes a receiving circuit having a function of receiving an image signal, a driver circuit having a function of driving a display portion, and the display portion having a function of displaying an image. The display portion displays an image at a frame frequency of less than or equal to 1 Hz in the still image display period. The receiving circuit stops receiving an image signal in the still image display period. Switching from the still image display period to the moving image display period is accurately performed by an external signal.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: October 22, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Roh Yamamoto, Hideki Uochi
  • Patent number: 10446073
    Abstract: A driving method for a display panel is provided, including the following steps: providing a first control signal, and providing a second control signal, where a voltage change of the second control signal compensates for a voltage change of the first control signal.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: October 15, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chun-Kuei Wen, Chun-Yu Chen, Yi-Hao Wang, Jie-Chuan Huang, Hung-Min Shih
  • Patent number: 10438532
    Abstract: An object is to provide a display device of an organic light emitting type suppressing luminance unevenness. The display device includes: a pixel including an organic light emitting element and a pixel circuit that controls a current supplied to the organic light emitting element; a first wiring 41 and a second wiring 42 supplying a first signal used for controlling the pixel circuit to the pixel circuit; and a third wiring 43 suppling a second signal used for controlling the pixel circuit to the pixel circuit. The first wiring 41 to the third wiring 43 are arranged inside an area in which the pixel circuit is arranged in a first direction, and the third wiring 43 is arranged between the first wiring 41 and the second wiring 42.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: October 8, 2019
    Assignee: Tianma Japan, LTD.
    Inventors: Jiro Yanase, Yojiro Matsueda, Yoshihiro Nonaka
  • Patent number: 10431172
    Abstract: A display device and a method of driving the same are disclosed. The display device includes a display panel configured to display an image, a plurality of data lines arranged in a first diagonal direction of the display panel, a plurality of scan lines arranged in a second diagonal direction intersecting the first diagonal direction of the display panel, a plurality of data drivers connected to the plurality of data lines, and a plurality of scan drivers connected to the plurality of scan lines.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: October 1, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Joondong Kim, Kimin Son
  • Patent number: 10429701
    Abstract: This application provides a display panel and an LCD panel and an LCD apparatus using the same. The display panel comprises a first substrate; a plurality of pixel units, formed on the first substrate; a protective layer, formed on the first substrate, and a transparent electrode layer formed on the protective layer, wherein the protective layer has different thicknesses in each of the pixel units so that a plurality of transparent regions are formed in each of the pixel units.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: October 1, 2019
    Assignees: HKC Corporation Limited, Chongqing HKC Optoelectronics Technology Co., Ltd.
    Inventor: Yu-Jen Chen
  • Patent number: 10424232
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for changing a distributed mode loudspeaker's fundamental frequency. One of the systems may include a light emitting diode display that includes an array of pixels, each pixel including, for each color of multiple colors, a directional light emitter and a wide-angle light emitter, a first combination of all the directional light emitters configured to generate a first display image viewable within a first viewing angle, and a second combination of all the wide-angle light emitters configured to generate a second display image concurrently with the generation of the first display image that is viewable within a second viewing angle. The first display image is a different image than the second display image and the first viewing angle is a narrower viewing angle than, and included within, the second viewing angle.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: September 24, 2019
    Assignee: X Development LLC
    Inventors: Martin Friedrich Schubert, Michael Jason Grundmann, Raj B. Apte, Benoit Schillings
  • Patent number: 10424258
    Abstract: A liquid crystal display (LCD) may be described. The LCD can include a source driver; data lines electrically connected to the source driver; switches; connecting lines; a charge share line connecting each switch; a charge share connecting signal emitter that turns each switch on or off via the charge share line; and a thermal sensor that is secured to the LCD apparatus and detects a temperature. Each data line electrically connects to at least one of an LCD pixel, each connecting line electrically connects each pair of the data lines and each connecting line is switched on or off by each switch, the charge share connecting signal emitter turns each switch on and off in each horizontal period when the thermal sensor detects that the temperature is lower than a first predetermined temperature, and the source driver inputs a writing voltage to the plurality of data lines by column inversion.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: September 24, 2019
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventor: Kenta Endo
  • Patent number: 10417954
    Abstract: Provided is a display panel, including a plurality of gate lines extending in a row direction and arranged in a column direction; a plurality of data lines extending in a column direction and arranged in a row direction; a plurality of pixel units arranged in an array of M rows by N columns defined by the plurality of gate lines and the plurality of data lines intersecting each other; a first gate driver connected to pixel units from a first row to a mth row; and a second gate driver connected to pixel units from a (m+1)th row to a Mth row, where pixel units from the first row to the mth row of the nth column are connected to an integrated circuit through one of the plurality of data lines and pixel units from the (m+1)th row to the Mth row of the nth column are connected to the integrated circuit through another one of the plurality of data lines, where M, N, m and n are positive integers satisfying the following conditions: 1<m<M and 1<n<N. Split-screen display is made possible.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: September 17, 2019
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Kangpeng Yang, Yumin Xu, Chao Zheng, Shaofan Liu, Xiaomeng Chen
  • Patent number: 10410567
    Abstract: A display signal processing system according to the embodiment includes: a processing device configured to generate transmission data; an interface unit configured to transmit the transmission data; and a display unit configured to generate a display signal based on the transmission data. The processing device includes a SDR conversion unit configured to generate low-bit video data by decimating gradations of the video signal; an additional data calculation unit configured to generate additional data on the basis of information of the decimated gradations; and a mapping unit configured to generate the transmission signal including the low-bit video data and the additional data. The display unit includes a processor configured to restore at least a part of the decimated gradations in the low-bit video data on the basis of the transmission signal to thereby generate a display signal.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: September 10, 2019
    Assignee: JVCKENWOOD Corporation
    Inventor: Ryosuke Nakagoshi
  • Patent number: 10410572
    Abstract: A display device is provided. The display device may include pixels arranged in rows and columns, gate drivers connected to the rows of the pixels through gate lines, source drivers connected to the columns of the pixels through source lines, and a timing controller configured to control the gate drivers and the source drivers. The source driver associated with the specific pixel among the source drives may first supply an overdrive voltage corresponding to a final overdrive value to a source line connected to the specific pixel and then supply a source line voltage corresponding to a current value of the specific pixel to the source line. The overdrive controller may change weight values of at least two overdrive values based on a position of the specific pixel and interpolate the at least two overdrive values.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: September 10, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Hoon Yu, Taehyun Kim, Byoungyoon Jang, JaeYoul Lee
  • Patent number: 10395606
    Abstract: A liquid crystal display device performs displaying by field sequential driving. The liquid crystal display device includes a plurality of scanning lines; and a plurality of signal lines including a plurality of pairs of signal lines, each pair of signal line being connected to one pixel column. Under field sequential driving, within one field period of emitting any of a plurality of color rays, there is an overlap between: a first period in which a first scanning line group included among the plurality of scanning lines are scanned and one of the pair of signal lines is used to perform signal writes; and a second period in which a second scanning line group included among the plurality of scanning lines are scanned, and another one of the pair of signal lines is used to perform signal writes.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: August 27, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuichi Kita, Takahiro Sasaki, Iori Aoyama, Kazutaka Hanaoka
  • Patent number: 10395618
    Abstract: A display apparatus includes a controller which generates control signals and outputs image data, a compensating circuit which receives a portion of the control signals from the controller and generates a compensation signal, a voltage generating circuit which converts an input voltage to a driving voltage and increases or decreases a voltage level of the driving voltage in a frame period in response to the compensation signal, a driving part which receives the control signals and the image data from the controller and receives the driving voltage from the voltage generating circuit to generate a panel driving signal, and a display panel which receives the panel driving signal from the driving part to display an image.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: August 27, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jongjae Lee, Ikhyun Ahn, Bongim Park, Dongwon Park
  • Patent number: 10394070
    Abstract: Disclosed are a light blocking device, a method of manufacturing the same, and a transparent display device including the same, which transmit or block light by using a polymer dispersed liquid crystal (PDLC) layer. The light blocking device includes a first substrate and a second substrate facing each other, a first electrode on the first substrate, a second electrode on the second substrate, and a PDLC layer between the first electrode and the second electrode. The PDLC layer includes a droplet including liquid crystals and dichroic dyes, and the liquid crystals and the dichroic dyes are twisted with each other and aligned.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: August 27, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Sunyoung Park, Kihan Kim, Choonghyo Kim
  • Patent number: 10394099
    Abstract: A liquid crystal display panel and a display device are provided, and in the liquid crystal display panel, a common electrode is divided into a plurality of sub-common electrodes (01) arranged side by side in the extending direction of the gate lines; different common electrode signals are applied to the plurality sub-common electrodes (01), and their voltage magnitudes gradually increase in a transmitting direction of gate signals over the gate lines. Therefore, the inconsistency of the offsets ?Vp in the voltages of individual pixel electrodes in the entire liquid crystal display panel caused by the delay due to resistance and capacitance is compensated for by the voltages on the sub-common electrodes (01), so as to improve the picture quality of the liquid crystal display panel.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: August 27, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hao Zhang, Hyungkyu Kim, Wei Sun
  • Patent number: 10388208
    Abstract: Provided is a display device, more particularly, a display device including a gate driver. The display device includes: a plurality of pixels; a plurality of gate lines connected to the plurality of pixels; a gate driver including a plurality of stages outputting gate signals to the plurality of gate lines; a clock signal wiring transferring a clock signal to the gate driver; a voltage wiring transferring an off voltage to the gate driver; in which the clock signal wiring is positioned at a first side of the gate driver, and the voltage wiring is positioned at a second side facing the first side of the gate driver.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: August 20, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bon-Yong Koo, Dong Yeon Son
  • Patent number: 10380948
    Abstract: A semiconductor integrated circuit and corresponding display panel and electronic apparatus. A pixel element includes a self-luminous element and a drive transistor connected to a power supply line. In an emission period of the self-luminous element, an active voltage and an intermediate voltage are sequentially applied between the power supply line and a potential line with a pulse-shaped waveform such that a predetermined luminance duration is obtained in the emission period. In a non-emission period of the self-luminous element, an off-state voltage is applied between the power supply line and the potential line so as to maintain the self-luminous element in a non-emission state.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 13, 2019
    Assignee: Sony Corporation
    Inventors: Hiroshi Hasegawa, Teppei Isobe
  • Patent number: 10380937
    Abstract: The disclosure relates to systems and methods for reducing VCOM settling periods. A number of pixels is sub-divided into a plurality of regions. The pixels are configured to transmit light. A common voltage (VCOM) driving circuit is configured to drive a common electrode of the pixels. Moreover, each of a number of VCOM driving circuits includes a variable resistor configured to be driven to a resistance level based at least in part on which region of the plurality of regions includes an active pixel within the region. Furthermore, a resistance level is set and based at least in part on where the active pixel is located.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: August 13, 2019
    Assignee: Apple Inc.
    Inventors: Howard H. Tang, Paolo Sacchetto, Chaohao Wang, Szu-Hsien Lee, Patrick Bennett, Fenghua Zheng
  • Patent number: 10380960
    Abstract: According to one embodiment, a liquid crystal display device includes pixel electrodes arranged in matrix, gate lines, source lines, pixel switches, gate drivers allocated at both ends of a display region, a source driver, image signal transmit lines arranged along the columns in which the pixel electrodes are arranged, each image signal transmit line supplying an image signal to each source line, switches arranged along the row direction, each switch configured to switch a connection between the source line and the image signal transmit line, and control lines configured to output source control signals to switch the switches, each control line outputting a source control signal to switch a plurality of the switches at the same time, wherein each source control signal is input to each control line at a position substantially the center of the gate line in the row direction.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: August 13, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventor: Hideyuki Takahashi
  • Patent number: 10373541
    Abstract: A display control method and device for controlling a display device. The display device includes a red sub pixel, a green sub pixel, a first blue sub pixel, and a second blue sub pixel emitting light having a different central wavelength from that of the first blue sub pixel. The display control includes setting a display mode of the display device as one of a first mode in which the first blue sub pixel is used to emit blue light, a second mode in which the second blue sub pixel is used, and a third mode in which both the first blue sub pixel and the second blue sub pixel are used; and sub pixel rendering data according to an arrangement of the red sub pixel, the green sub pixel, the first blue sub pixel, and the second blue sub pixel and converting rendered data into output data.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: August 6, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Changhoon Lee, Ilnam Kim, Jongin Baek, Wonsang Park
  • Patent number: 10373577
    Abstract: According to an aspect, a display device includes: a plurality of pixels aligned in row and column directions, each of the pixels including a drive element; a plurality of scan lines each coupled with the drive elements included in the pixels aligned in the row direction to transmit thereto a scan signal for selecting the pixels row by row; a plurality of signal lines each coupled with the drive elements included in the pixels aligned in the column direction to write display data; and a display control unit. The display control unit alternately repeats a display period and a stop period. In a latter term of the stop period, display control unit provides the display data written in the respective pixels in a row that has been selected during the display period immediately before the stop period, to the signal lines corresponding to the respective pixels.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: August 6, 2019
    Assignee: Japan Display Inc.
    Inventors: Tadayoshi Katsuta, Hiroshi Mizuhashi
  • Patent number: 10373566
    Abstract: An organic light emitting diode (OLED) display device includes a display panel including a plurality of pixel rows; a driving circuit configured to: provide a first display data to the plurality of pixel rows in a normal mode; provide a second display data including black data to the plurality of pixel rows in a dimming mode, in response to a mode signal; and decrease a second luminance of the display panel in the dimming mode to a level lower than a first luminance of the display panel in the normal mode; and a power supply configured to apply a lower power supply voltage and a high power supply voltage to the display panel, the power supply providing the mode signal.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: August 6, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Sic Lee, Jin-Woo Park
  • Patent number: 10373548
    Abstract: A pixel structure includes data lines disposed along a first direction, scan lines disposed along a second direction and pixel units periodically disposed along the first and the second directions. In a first pixel unit, a first switch element is coupled to a first scan line and a first data line, the second switch element is coupled to the first scan line, and a third switch element is coupled to the first scan line. In a second pixel unit, a fourth switch element is coupled to a second scan line, the first data line and the second switch element, and a fifth switch element is electrically coupled to the second scan line and the third switch element. In a third pixel unit, a sixth switch element is coupled to a third scan line, the first data line and the fifth switch element.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: August 6, 2019
    Assignee: E Ink Holdings Inc.
    Inventors: Chia-Chun Yeh, Kuo-Hsing Cheng, Kuo-Yen Chang, Hsing-Yi Wu
  • Patent number: 10367278
    Abstract: A first wiring plate is a flexible wiring plate to be directly connected to a display panel, and includes a first connector. The first connector is directly connected to a second connector included in a second wiring plate to be directly connected to the display panel.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: July 30, 2019
    Assignee: JOLED INC.
    Inventor: Yutaka Nakano
  • Patent number: 10355068
    Abstract: Display irregularities in light emitting devices, which develop due to dispersions per pixel in the threshold value of TFTs for supplying electric current to light emitting elements, are obstacles to increasing the image quality of the light emitting devices. An electric potential in which the threshold voltage of a TFT (105) is either added to or subtracted from the electric potential of a reset signal line (110) is stored in capacitor means (108). A voltage, in which the corresponding threshold voltage is added to an image signal, is applied to a gate electrode of a TFT (106). TFTs within a pixel are disposed adjacently, and dispersion in the characteristics of the TFTs does not easily develop. The threshold value of the TFT (105) is thus cancelled, even if the threshold values of the TFTs (106) differ per pixel, and a predetermined drain current can be supplied to an EL element (109).
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: July 16, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hajime Kimura, Yoshifumi Tanada
  • Patent number: 10345654
    Abstract: According to one embodiment, a liquid crystal display apparatus includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a gate wiring, a source wiring, an insulating film, a shield electrode, a primary pixel electrode, a peripheral wiring and a peripheral connecting electrode. The shield electrode is opposite to at least a portion of the gate wiring and the source wiring. The peripheral connecting electrode electrically connects the shield electrode and the peripheral wiring. The second substrate includes a pair of primary common electrodes.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 9, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventor: Yuji Sato
  • Patent number: 10345942
    Abstract: A display panel includes a base layer, a circuit layer, and a pixel layer. The base layer includes a plurality of light emitting areas, and a plurality of transmitting areas to transmit light incident thereto. The circuit layer includes a plurality of switching devices disposed on the light emitting areas, and a plurality of photosensors disposed on the transmitting areas. The pixel layer includes a light emitting element to emit light based on reception of a current from at least one of the plurality of switching devices. The light emitting element overlaps with one of the plurality of light emitting areas. At least one of the plurality of phototosensors is configured to receive a portion of external light reflected from an external object after transmission of the external light through at least one of the plurality of transmitting areas.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: July 9, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Daeyoun Cho, Cheolkyu Kim, Hyojung Kim, Jongwoo Park, Youngsun Hwang
  • Patent number: 10347202
    Abstract: Disclosed are a driving method and a driving device for reducing electromagnetic interference. A method for driving a source-chip on film S-COF and a timing controller TCON is provided as: the timing controller TCON first outputs initial data A stored in the source-chip on film S-COF; it is determined whether data received is correct by comparing transmission data received by the source-chip on film S-COF with initial data A built in the source-chip on film S-COF, and if a determination result is no, a swing value of transmission data mini-LVDS is adjusted by the timing controller TCON.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: July 9, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xiaoyu Huang
  • Patent number: 10339854
    Abstract: Provided is a gate driving circuit, coupled to a pixel array having multiple gate lines. The gate driving circuit includes multiple shift registers and multiple pull-up transistor, coupled to the pixel array and separately located on two opposite sides of the pixel array. Shift registers located on a same side are sequentially coupled to each other. An nth (n is a positive integer) pull-up transistor includes: a control end, coupled to a control end of a driving transistor of an (n?1)th shift register located on a same side as the nth pull-up transistor; a first end, used to receive a clock signal, where the clock signal is further input to an nth shift register of the shift registers located on an opposite side of the nth pull-up transistor; and a second end, coupled to an nth gate line of the pixel array and used to drive the nth gate line.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: July 2, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chuang-Cheng Yang, Chun-Feng Lin, Ming-Hsien Lee, Kai-Wei Hong, Chun-Da Tu, Yi-Cheng Lin
  • Patent number: 10339865
    Abstract: The present disclosure provides a pixel driver circuit, a pixel circuit, a display panel and a display device. The pixel driver circuit includes two pixel driving units having an identical structure. Each pixel driving unit includes a driving transistor and a driving control module. A gate electrode of the driving transistor is connected to the driving control module, a first electrode thereof receives a first power voltage, and a second electrode thereof is connected to the driving control module and a light-emitting element. The driving control module is connected to a data line, a gate line, and the gate electrode and the second electrode of the driving transistor, and controls a potential at the gate electrode of the driving transistor in accordance with a data voltage applied to the data line under control of a gate driving signal from the gate line, so as to turn on/off the driving transistor.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: July 2, 2019
    Assignees: BOE TECHNOLOGY GROUP CO. LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Mo Chen, Jian Zhao, Miao Zhang, Jing Sun, Songmei Sun
  • Patent number: 10342124
    Abstract: Provided is a display device or an input/output device in which reflection of outside light is reduced. The display device includes a first substrate and a second substrate. The first substrate includes a first surface. A transistor is over the first surface. The second substrate includes a second surface. A first structure having a projection, a second structure having a projection, a black matrix covering the first structure and the second structure, and a color filter are over the second surface. The first surface faces the second surface. The black matrix has a plurality of projections reflecting the projection of the first structure and the projection of the second structure. A planar shape of the first structure is different from a planar shape of the second structure.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: July 2, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Mika Jikumaru, Daisuke Kubota, Noriko Miyairi, Takaaki Nagata