Backlight Control Patents (Class 345/102)
  • Patent number: 10319289
    Abstract: A dimming signal arranging method used for a light emitting diode display device is provided in the present disclosure. The dimming signal arranging method used for a light emitting diode display device includes the steps: determining whether a total number of dimming unit signals of a dimming signal is greater than a number of frames of a working interval; averagely arranging a first group of the dimming unit signals in at least one frame of the frame groups that is not a predetermined frame of each frame group; arranging a second group of the dimming unit group in at least one predetermined frame of the frame groups; and providing a dimming signal.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: June 11, 2019
    Assignee: ANPEC ELECTRONICS CORPORATION
    Inventor: Che-Chang Chang
  • Patent number: 10319341
    Abstract: According to one embodiment of the present disclosure, an electronic device may include a display and a processor electrically connected to the display. The processor may be configured to classify a frame of content that is being reproduced on the display into a plurality of blocks including at least one pixel, confirm average brightness values of each of the plurality of blocks, determine whether to satisfy at least one specified condition based on the average brightness values of at least some of the plurality of blocks, and adjust brightness of the at least one pixel included in the plurality of blocks if it is determined that the at least one specified condition is satisfied. Other various embodiments may be directed to an electronic device or a method of display content of an electronic device.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: June 11, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Daekeun Park, Keehyon Park, Hunhee Lee, Sungmin Chu
  • Patent number: 10321549
    Abstract: The exemplary embodiments herein provide a method for controlling the luminance of an electronic display, including the steps of determining the sunset and sunrise times for the day and determining whether the present time is between sunrise and sunset or between sunset and sunrise. The backlight may be driven at a daytime level if the present time is between sunrise and sunset, while the backlight may be driven at a nighttime level if the present time is between sunset and sunrise. In some embodiments, artificial ambient sensor (AAS) data is used to determine the desired backlight or display luminance. The AAS data may be adjusted for a sunset or sunrise transition time, as well as for an approximate percentage of cloud cover in the sky.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: June 11, 2019
    Assignee: Manufacturing Resources International, Inc.
    Inventors: John Schuch, William Dunn, Rick De Laet, Dan Safstrom
  • Patent number: 10310589
    Abstract: A power controller includes an inductor coupled to an input terminal to which an input voltage is input, a first switch coupled between the inductor and a first power source voltage output terminal, a second switch coupled between the inductor and a ground, a switch controller controlling a voltage output to the first power source voltage output terminal by controlling duties of the first and second switches according to a feedback voltage input to a feedback terminal corresponding to a voltage output to the first power source voltage output terminal, and a diode coupled between the first power source voltage output terminal and the feedback terminal, and preventing a voltage of the first power source voltage output terminal from increasing higher than a breakdown voltage of the first and second switches.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: June 4, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon-Gi Kwon, Sung-Cheon Park
  • Patent number: 10311769
    Abstract: A uniformity correction data generation unit generates uniformity correction data for an R signal, a G signal, and a B signal. A multiplier multiplies pixel signals of the R signal, the G signal, and the B signal by the uniformity correction data for the R signal, the G signal, and the B signal. The multiplier shifts, from one another, positions of pixels at a time of multiplying the pixel signals of the R signal, the G signal, and the B signal by the uniformity correction data for the R signal, the G signal, and the B signal.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: June 4, 2019
    Assignee: JVC KENWOOD CORPORATION
    Inventor: Daisuke Ogoshi
  • Patent number: 10304393
    Abstract: A brightness compensation method and a brightness compensation circuit for a display device are provided. The brightness compensation method includes the following steps. Receive original image data. Receive backlight timing parameters. Perform brightness compensation according to the image data and the backlight timing parameters. The step of performing brightness compensation includes adjusting at least one of pixel driving data, a driving gamma level, and a driver boost level.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: May 28, 2019
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Cheng-Wen Lin, Chin-Yuan Tu, Hui-Hung Chang, Chien-Yu Chen
  • Patent number: 10303260
    Abstract: A switch device includes a control portion that performs brightness adjustment control. Under the brightness adjustment control, a detection portion acquires capacitance of several electrode portions. The control portion allows a brightness adjustment portion to increase brightness of design portions corresponding to all the electrode portions whose capacitance exceeds an approach determination threshold value so that the increased brightness is higher than original brightness. The control portion maintains brightness control by the brightness adjustment portion when the capacitance exceeds the approach determination threshold value and is lower than a switch-on determination threshold value. When the capacitance exceeds a predetermined switch-on determination threshold value, the control portion turns on a switch portion corresponding to the electrode portion to operate an instrument, and subsequently returns the brightness by the brightness adjustment portion to the original brightness.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: May 28, 2019
    Assignee: DENSO CORPORATION
    Inventor: Tomohiko Sakamaki
  • Patent number: 10296045
    Abstract: An electronic reading device can include an adjustable RGBW front light and an ambient light sensor. Additionally, the electronic reading device can include circuitry configured to receive a signal from the ambient light sensor corresponding to a detected ambient light level, automatically display a default brightness level based on the detected ambient light level, determine if the brightness level is manually adjusted, automatically adjust the relative brightness based on the manually adjusted brightness level when the ambient light level changes, and update preferred relative settings to correspond to the manual adjustment.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: May 21, 2019
    Assignee: RAKUTEN KOBO INC.
    Inventors: Trevor Hunter, Matt Clements, George Talusan, Paul McDougall, William Chaban, Zheng Xu, Steve Li, Jeffrey Ng Thow Hing
  • Patent number: 10297212
    Abstract: A display device includes an image display panel on which pixels are arranged, a backlight which lights the image display panel from a rear of the image display panel, a first device which controls the backlight, and a second device which controls the image display panel. The first device generates an image signal, outputs the image signal to the second device, determines a light source lighting amount of the backlight on the basis of the image signal by blocks obtained by dividing a display surface of the image display panel and luminance distribution information on the backlight stored in advance, and controls the backlight by the light source lighting amount. The second device acquires the image signal, converts the image signal to a display signal for controlling display of the image display panel, and controls the image display panel.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: May 21, 2019
    Assignee: Japan Display Inc.
    Inventors: Kazuhiko Sako, Tsutomu Harada
  • Patent number: 10297229
    Abstract: A display device includes a display unit having a function of showing a space behind a display screen transparently and a control unit for controlling the display unit based on an input video signal. The control unit controls the display unit to display a transparent video having a transparent portion through which the space behind the display screen can be seen transparently, while displaying a main video based on the input video signal. The control unit may generate an instruction signal indicating a display period of the transparent video and may control the display unit in accordance with the generated instruction signal, or may control the display unit in accordance with an instruction signal provided externally. With this, there is provided a see-through type display device which does not hinder a vision when displaying a video for a long time.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: May 21, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Tomoyuki Ishihara
  • Patent number: 10297616
    Abstract: A display panel includes a gate integrated circuit, a number of scan lines extending from the gate integrated circuit for transmitting scan signals, a source integrated circuit, a number of data lines extending from the source integrated circuit for transmitting data signals, a number of pixel electrodes for receiving the scan signals and the data signals, and a number of transistors each electrically coupled to a corresponding scan line, a corresponding data line, and a corresponding pixel electrode. The transistors each include a gate electrode, a source electrode, and a drain electrode. The drain electrode includes an overlapping portion overlapping with the gate electrode. The gate integrated circuit transmits the scan signals along the scan lines. A size of the overlapping portion increases along a transmitting direction of the scan signal along the scan line.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: May 21, 2019
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Ming-Tsung Wang, Chih-Chung Liu, Yi-Hsiu Cheng, Wen-Qiang Yu
  • Patent number: 10296046
    Abstract: An electronic reading device includes an adjustable RGBW front light and an ambient light sensor. Additionally, the electronic reading device includes circuitry configured to receive a low ambient light preferred brightness level, receive a high ambient light preferred brightness level, and set a rate at which a brightness level transitions between the low ambient light preferred brightness level and the high ambient light preferred brightness level as the ambient light changes.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: May 21, 2019
    Assignee: RAKUTEN KOBO INC.
    Inventors: Trevor Hunter, Matt Clements, George Talusan, Paul McDougall, William Chaban, Zheng Xu, Steve Li, Jeffrey Ng Thow Hing
  • Patent number: 10290693
    Abstract: Provided is a novel display panel that is highly convenient or reliable or a display panel with a high pixel aperture ratio. The display panel includes the first display element, the first conductive film electrically connected to the first display element, the second conductive film having a region overlapping with the first conductive film, the second insulating film having a region sandwiched between the second conductive film and the first conductive film, a pixel circuit electrically connected to the second conductive film, and the second display element electrically connected to the pixel circuit. The second insulating film includes an opening, and the second conductive film is electrically connected to the first conductive film in the opening.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: May 14, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Koji Kusunoki
  • Patent number: 10288938
    Abstract: The present invention discloses a backlight adjustment method and system, a backlight module and a display device. The backlight adjustment method includes: calculating a first outgoing light brightness of an backlight block corresponding to each image block; dividing a backlight source into a number of closed areas according to the first outgoing light brightnesses of the backlight blocks; calculating the number of backlight blocks included in each of the light-emitting closed areas; looking up a corresponding drive current in a preset correspondence table, wherein predetermined correspondence between the number of backlight blocks and the drive current applied to light up the corresponding number of backlight blocks and make an actual brightness of the corresponding area equal to a preset brightness is recorded in the correspondence table; and outputting the drive current obtained by the lookup operation to the backlight blocks in the light-emitting closed area.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: May 14, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yifang Chu, Chulgyu Jung
  • Patent number: 10289187
    Abstract: According to one embodiment, an electronic device includes a keyboard, a backlight and a hardware processor. The backlight illuminates the keyboard. The hardware processor is electrically coupled to the backlight. The hardware processor is configured to gradually decrease brightness of the backlight during a period of time of which the backlight is continuously on.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: May 14, 2019
    Assignee: Toshiba Client Solutions Co., Ltd.
    Inventor: Makoto Midorikawa
  • Patent number: 10290285
    Abstract: An imaging and display apparatus for passive displays evaluates the illumination of an input scene and incorporates data representative of such input scene within a transfer media. The transfer media may be a broadcast or transmission of image data, illumination data and gamma information that can be received by a display system, which includes a passive display illuminated by incident light, to display images while adjusting the incident light and/or gamma based on the received data. The transfer media may be a storage medium storing image data, illumination data and gamma information for delivery to a passive display system. The data controls the optical characteristics of the illumination source for the passive display and the gamma and tends to minimize energy requirements, to maximize contrast or shades of gray in the displayed image, and to optimize light source operation for color fidelity.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: May 14, 2019
    Assignee: Fergason Licensing LLC
    Inventor: James L. Fergason
  • Patent number: 10291881
    Abstract: A conversion method for converting luminance of a video, including a luminance value in a first luminance range, to be displayed on a display apparatus includes: acquiring a first luminance signal indicating a code value obtained by quantization of the luminance value of the video; and converting the code value indicated by the acquired first luminance signal into a second luminance value determined based on a luminance range of the display apparatus, the second luminance value being compatible with a second luminance range with a maximum value smaller than a maximum value of the first luminance range and larger than 100 nit. This provides the conversion method capable of achieving further improvement.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: May 14, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tadamasa Toma, Kengo Terada, Masayuki Kozuka, Takahiro Nishi
  • Patent number: 10283046
    Abstract: An electro-optical device includes a driving transistor in which a source, a light emission control transistor in which the source is connected to a drain of the driving transistor, an OLED element in which one end is connected to the drain of the light emission control transistor, and a first holding capacitor in which one end is connected to a gate of the driving transistor, the other end is connected to the drain of the driving transistor, and holds a potential that corresponds to a potential of a data signal of a designated tone, in which a driving circuit is provided with a non-light emission period of the OLED element per predetermined period in one vertical scanning period, and monotonically decreases a proportion of the non-light emission period in the predetermined period by controlling the light emission control transistor.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: May 7, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Kuni Yamamura
  • Patent number: 10282891
    Abstract: An apparatus and method of processing three-dimensional (3D) images on a multi-layer display may generate virtual depth information based on original depth information, and display 3D images having various depth values using the generated virtual depth information. Also, the apparatus and method may appropriately provide color information to each of a plurality of display layers, thereby preventing an original image from being damaged.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: May 7, 2019
    Assignees: Samsung Electronics Co., Ltd., Puredepth Limited
    Inventors: Young Ran Han, Young Shin Kwak, Du Sik Park, Young Ju Jeong, Darryl Singh, Gareth Paul Bell
  • Patent number: 10276081
    Abstract: Improved display devices, information handling systems and related methods are provided for color and luminance characterization and compensation. According to one embodiment, a characterization method is provided for correlating the color/luminance measured from light emitted by a light source disposed within the display device to the color/luminance measured from light output from the display device at the time of manufacture. After the display device is characterized and a set of characterization values are stored, a compensation method is used during operation of the display device to perform color/luminance compensation for the light output from the display device by measuring the color/luminance of the light source illumination, and adjusting color gain values to maintain the color/luminance of the output light at a reference set point.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: April 30, 2019
    Assignee: Dell Products L.P.
    Inventors: Aik Keong Ong, Andrew Khor
  • Patent number: 10269308
    Abstract: The disclosure provides an apparatus and method for controlling liquid crystal display brightness, and a liquid crystal display device, where the method includes: determining grayscale values of pixels in a zone image data block under a predetermined rule according to a received image signal; pre-obtaining a zone backlight value corresponding to the zone image data block according to the grayscale values in the zone image data block; multiplying the pre-obtained a zone backlight value with a backlight value gain coefficient to obtain a backlight value to which a gain is applied of a backlight zone, wherein the backlight value gain coefficient is more than 1; and mapping the respective zone backlight values to driver circuits of backlight sources in the corresponding backlight zones.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: April 23, 2019
    Assignees: Hisense Electric Co., Ltd., Hisense USA Corporation, Hisense International Co., Ltd.
    Inventors: Jia Yang, Yuxin Zhang, Shunming Huang, Yujie Diao
  • Patent number: 10271393
    Abstract: A single chip multi-voltage or multi-brightness LED lighting device having at least two LED circuits. Each of the at least two LED circuits having at least two LEDs connected together in series. Each of the at least two LED circuits are electrically unconnected to each other in a parallel relationship, have a forward operating drive voltage of at least six volts and are monolithically integrated on a single substrate. A method of manufacturing a single chip with two or more LED circuits configurable by means of connecting the circuits so as to provide optional operating voltage level and/or desired brightness level wherein the electrical connection may be achieved and/or completed at the LED packaging level when the single chips are integrated into the LED package. Alternatively, the LED package may have external electrical contacts that match the integrated chips within.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: April 23, 2019
    Assignee: Lynk Labs, Inc.
    Inventors: Michael Miskin, Robert L. Kottritsch
  • Patent number: 10268365
    Abstract: An electronic apparatus that may be enabled by a user's simple operation to a touch panel, a control method of the electronic apparatus, and a control program of the electronic apparatus are provided. An electronic apparatus includes a contact detector for detecting a contact, an acceleration detector for detecting acceleration, a display for displaying an image, and controllers for controlling, when the acceleration detector detects predetermined acceleration caused by a first tap and, within a predetermined period therefrom, the contact detector detects a contact caused by a second touch, to carry out an operation based on the contact.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: April 23, 2019
    Assignee: KYOCERA CORPORATION
    Inventors: Yasuhiro Ueno, Shigeki Tanabe, Hideki Morita, Isao Masuike, Atsuo Chiba, Daisuke Ibuki, Daisuke Tsuiki, Sunao Hashimoto
  • Patent number: 10270897
    Abstract: In various embodiments, different mobile phone apparatuses are provided, comprising: a touchscreen including a backlight; a near field communication interface; at least one non-transitory memory storing instructions; and one or more processors in communication with the touchscreen, the near field communication interface, and the at least one non-transitory memory, wherein the one or more processors execute the instructions to initiate various capabilities and/or functionalities in connection with a lock screen displayed on the touchscreen.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: April 23, 2019
    Assignee: Majen Tech LLC
    Inventors: George Andrew Gordon, Joseph A Cerrato, Ronald A Johnston, Kevin J Zilka
  • Patent number: 10261352
    Abstract: There is provided a light dimmer module including a liquid crystal layer disposed between a pair of electrodes, and a transmittance sensor that detects light transmittance of the liquid crystal layer.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: April 16, 2019
    Assignee: SONY CORPORATION
    Inventors: Shintarou Morita, Noboru Katsui
  • Patent number: 10262600
    Abstract: A method and apparatus for grayscale adjustment are provided. The method includes steps of: obtaining pixel grayscale values or at least one region grayscale value of an original image; selecting a predetermined grayscale compensation interval, from multiple predetermined grayscale compensation intervals, which corresponds to the pixel grayscale values or the region grayscale value as a ready-to-use grayscale compensation interval; obtaining a grayscale compensation value which corresponds to the ready-to-use grayscale compensation interval; and performing compensation on pixel grayscale values of the original image according to the grayscale compensation value.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: April 16, 2019
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd., Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Zhenzhou Xing, Bin Xiong
  • Patent number: 10262610
    Abstract: There is provided a backlight unit including a backlight configured to generate light, and a backlight driving circuit configured to drive the backlight in a dimming mode on a basis of a dimming signal, the backlight driving circuit including a first comparator configured to detect a frequency of the dimming signal and to compare the frequency of the dimming signal with a reference frequency to determine a compared result, and a driver configured to selectively drive the backlight, based on the compared result, in an analog dimming mode in which a driving current of the backlight is controlled, or a mixed dimming mode by mixing the analog dimming mode and a digital dimming mode in which an on state and an off state of the backlight is controlled.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: April 16, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeongbong Lee, Yujin Kim
  • Patent number: 10262579
    Abstract: There provides a drive system for a liquid crystal display, which includes: a timing controller for generating a scanning start signal; a level shifter for boosting the generated scanning start signal and generating at least one clock signal according to the boosted scanning start signal; and a gate driver for scanning and driving gate lines according to the boosted scanning start signal and the generated clock signal. There also provides a drive method of a liquid crystal display. With the drive system and drive method of a liquid crystal display provided in the present invention, it can reduce the pins required by the timing controller and the level shifter, thus the packages of the timing controller and the level shifter get smaller, thereby reducing the package cost.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: April 16, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Dekang Zeng
  • Patent number: 10254577
    Abstract: An electronic panel has, in an embodiment, a front layer, a liquid crystal display device located behind the front layer, a lighting device located behind the liquid crystal display device, a back layer and a frame. The electronic panel also has at least one processor operable to control a plurality of viewing modes.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: April 9, 2019
    Assignee: Lim Industries LLC
    Inventor: Kevin J. Lim
  • Patent number: 10251232
    Abstract: A dynamic light display may include an array of lighting elements behind a translucent material. The array of lighting elements may be controlled by an electronic controller which controls activation and deactivation as well as intensity levels of the individual lighting elements of the array. The electronic controller may generate dynamically moving light shapes which move around on the array. The dynamically moving light shapes are diffused through the translucent material to produce dynamic light display sequences, which may serve a wide range of applications.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: April 2, 2019
    Assignee: COGNICOLOR, LLC
    Inventor: Bryan Kent Ressler
  • Patent number: 10242604
    Abstract: Embodiments of the invention disclose a display device, comprising a substrate, a plurality of pixels on the substrate and a backlight module located at a side of the substrate away from the pixels. Each pixel has a microcavity structure, in which the light emitted from the backlight module oscillates many times and exits as visible light of at least three colors, thereby enabling the display device to realize color display. Compared to the existing liquid crystal display device, this display device will not be limited by the manufacturing process when it is applied in the flexible display field. Compared to the existing organic electroluminescent display device, this display device will not have the problems of low yield, high cost and short life time, etc.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: March 26, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanzhao Li, Changcheng Ju, Yuedi He, Feng Jiang
  • Patent number: 10237539
    Abstract: A 3D display apparatus is provided. The 3D display apparatus includes a display panel and a viewing area separator disposed on a front side of the display panel and configured to provide a plurality of optical views having different viewpoints to a viewing zone, and a processor configured to render a plurality of image views having different viewpoints based on a depth of an input image and provide a multiview image by arranging the plurality of image views on the display panel in an arrangement pattern. The processor is further configured to determine, based on the arrangement pattern, an estimated crosstalk occurring between the plurality of image views having the different viewpoints, correct the plurality of image views by performing crosstalk inverse compensation according to the estimated crosstalk, and provide the multiview image based on the crosstalk inverse compensation.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-mo Kang, Sung-yeol Kim, Ho-young Lee
  • Patent number: 10235553
    Abstract: A display device for fingerprint detection is disclosed. The display device includes a plurality of gate lines and a plurality of data lines, a first switching transistor, a storage capacitor, a light-receiving element, and a second switching transistor. The plurality of data lines are used for reading a charged voltage across the storage capacitor.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: March 19, 2019
    Assignee: BEYONDEYES
    Inventors: Kwangsue Park, Dong Wook Nam, Byung II Min
  • Patent number: 10235953
    Abstract: The present invention discloses a display panel, a displayer and the drive method thereof, the display panel comprising a cell substrate and an array substrate. The array substrate comprises a plurality of gate lines and a plurality of data lines, wherein, a sub-pixel unit is defined by an i-th line gate line, an (i+1)-th line gate line, a j-th column data line and aj+1-th column data line, wherein, i and j are both natural number. The outermost side of the cell substrate is provided with an FPR film array comprising a first FPR film and a second FPR film, wherein, the first FPR film is corresponding to the first pixel electrode so as to convert emitting light of the first pixel electrode into polarized light in a first direction, and the second FPR film is corresponding to the second pixel electrode so as to convert emitting light of the second pixel electrode into polarized light in a second direction, wherein, the first direction is different from the second direction.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: March 19, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pan Li, Wenbo Li
  • Patent number: 10223995
    Abstract: A display driving circuit for driving pixel cells located on a liquid crystal display panel and sub-pixels located on an OLED panel which is an OLED backlight, one of the pixel cells corresponding to at least one of the sub-pixels, the display driving circuit comprising: a shift register unit having a source signal terminal, a pulse signal terminal, and at least one signal output terminal, and configured to output a signal inputted from the source signal terminal to the signal output terminal under control of the pulse signal terminal; wherein the one of the pixel cells and the at least one of the sub-pixels corresponding thereto are connected to the same signal output terminal.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: March 5, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Peng Han, Hao Zhang, Lingyun Shi, Xiurong Wang, Bo Gao, Yafei Li
  • Patent number: 10225513
    Abstract: A conversion method for converting luminance of a video, including a luminance value in a first luminance range, to be displayed on a display apparatus includes: acquiring a first luminance signal indicating a code value obtained by quantization of the luminance value of the video; and converting the code value indicated by the acquired first luminance signal into a second luminance value determined based on a luminance range of the display apparatus, the second luminance value being compatible with a second luminance range with a maximum value smaller than a maximum value of the first luminance range and larger than 100 nit. This provides the conversion method capable of achieving further improvement.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: March 5, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tadamasa Toma, Kengo Terada, Masayuki Kozuka, Takahiro Nishi
  • Patent number: 10222618
    Abstract: Disclosed here in is a method of adjusting a tunable illuminating light source with a reflective display for a head mounted display to reduce chromatic artifacts in an image provided to a user's eye. The method includes identifying a color associated with a chromatic-related artifact in a displayed image and adjusting the tunable illuminating light source to reduce the brightness of the color associated with the chromatic-related artifact.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: March 5, 2019
    Assignee: Osterhout Group, Inc.
    Inventors: John N. Border, Joseph Bietry
  • Patent number: 10223981
    Abstract: A display system includes a display device having a screen, a lamp, a first optical sensor, a second optical sensor, and a controller. The controller is configured to adjust the luminance parameter of the lamp according to the environmental light parameter detected by the first optical sensor and then adjust the display parameter of the screen according to the overall brightness of the display device detected by the second optical sensor.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: March 5, 2019
    Assignee: BenQ Corporation
    Inventors: Ho-Shih Wu, Hsin-Nan Lin
  • Patent number: 10216037
    Abstract: A photo-luminescent display device includes: a backlight to output a backlight; a first substrate and a second substrate facing each other; a pixel electrode disposed on the first substrate; a light amount control layer disposed in a space between the first substrate and the second substrate to control a transmittance of the backlight; a first light conversion portion disposed on the second substrate to convert a wavelength of the backlight; a light diffusion portion disposed adjacent to the first light conversion portion to diffuse the backlight; and a barrier surrounding the first light conversion portion. The light diffusion portion and the barrier include a unitary structure.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: February 26, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kanguk Kim, Donchan Cho, Taimei Kodaira, Sangji Park, Youngje Cho
  • Patent number: 10215795
    Abstract: A method of monitoring a gate of a transistor includes monitoring a gate voltage of the transistor; measuring a first time difference between when a gate control signal is asserted and when the gate voltage of the transistor crosses a first voltage threshold based on the monitoring; measuring a second time difference between when the gate voltage of the transistor crosses the first voltage threshold and when the gate voltage of the transistor crosses a second voltage threshold based on the monitoring; and determining whether the first time difference falls within a first time window, and whether the second time difference falls within a second time window.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: February 26, 2019
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Markus Zannoth, Jaafar Mejri
  • Patent number: 10210822
    Abstract: Disclosed are a method and apparatus for controlling backlight brightness, and a liquid crystal display device, and the method for controlling backlight brightness includes: determining a backlight duty ratio of each backlight zone according to a backlight value of each backlight zone; determining a gain backlight current value of a backlight area according to an average backlight value of the backlight area, and a preset gain curve, wherein each backlight area corresponds to at least one backlight driving chip, and the at least one backlight driving chip controls in parallel more than one backlight zones in the backlight area corresponding to the at least one driving chip; generating a pulse modulation signal of each backlight zone according to the backlight duty ratio of corresponding backlight zone and the gain backlight current value; and adjusting a backlight current of the corresponding backlight zone according to the pulse modulation signal.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: February 19, 2019
    Assignee: Hisense Electric Co., Ltd.
    Inventors: Yuxin Zhang, Zhicheng Song, Shaowei Wu
  • Patent number: 10210821
    Abstract: A light source apparatus includes: a light-emitting unit having a plurality of light-emitting diodes having mutually different light emission colors; a setting unit configured to seta drive mode; and a control unit configured to drive the light-emitting unit in such that each of the plurality of light-emitting diodes emits light periodically, by a drive method corresponding to the drive mode set by the setting unit, wherein in a case where the light-emitting unit is lit with a predetermined light emission brightness, in a light-emitting diode from among the plurality of light-emitting diodes, a drive current value during a lighting period is lower and a lighting period during one cycle is longer in a second drive mode than those in a first drive mode.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: February 19, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masanao Kurita
  • Patent number: 10210815
    Abstract: A dimming control method of a backlight unit of a liquid crystal display (LCD) device driven at a driving frequency (f) of 60 Hz or lower includes a first step of driving the backlight unit using a first dimming value, and a second step of driving the backlight unit using a second dimming value higher than the first dimming value. The first step and the second step are alternately repeated and a repetition number of the second step within one period T of a driving frequency (f) is set to satisfy a condition of “{(60/f)?1}”. Here, f is a natural number lower than 60.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: February 19, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: DaeSeok Oh, Moonsoo Chung
  • Patent number: 10210820
    Abstract: An image display apparatus according to the present invention includes: a light-emitting unit including a plurality of light sources and a conversion member; a display unit configured to display an image by modulating light from the light-emitting unit; a control unit configured to control respective light-emitting brightness of the plurality of light sources; an estimation unit configured to estimate, based on the respective light-emitting brightness, a first brightness distribution and a second brightness distribution; and an image processing unit configured to perform image processing, in which color unevenness due to a difference between the first brightness distribution and the second brightness distribution is reduced, to input image data.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: February 19, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kohei Inamura
  • Patent number: 10203863
    Abstract: A flexible display device is provided. The flexible display device includes a display unit including an expandable or reducible screen, a sensing unit to detect a size of the screen, and a control unit coupled with the display unit and the sensing unit, the control unit is further capable of: displaying a first execution window of a first application on the screen corresponding to a first distance; and executing a second application if the size of the screen is expanded by an area corresponding to a predetermined distance in a first direction after the size of the screen is reduced by the area corresponding to the predetermined distance in a second direction.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: February 12, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Yunmi Kwon, Kiseon Lee
  • Patent number: 10204572
    Abstract: A display apparatus including a plurality of pixels and a multi-color light source backlight module, and a driving method thereof are disclosed. Each pixel includes a first color sub-pixel, a second color sub-pixel, a third color sub-pixel, and a white sub-pixel. The backlight module includes a first color light source, a second color light source, and a third color light source. In a first sub-frame period, the first color light source and the second color light source are lightening; in a second sub-frame period, the second color light source and the third color light source are lightening; and in a third sub-frame period, the first color light source and the third color light source are lightening.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: February 12, 2019
    Assignee: AU OPTRONICS CORP.
    Inventors: Seok-Lyul Lee, Yu-Chang Wen
  • Patent number: 10198123
    Abstract: The disclosed embodiments relate to forming an area on a touchscreen which electrically isolates a portion of the viewable area of the touchscreen from a capacitive sensor associated with the touchscreen.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: February 5, 2019
    Assignee: Apple Inc.
    Inventors: Cheng Chen, Erik A. Uttermann, Kevin D. Gibbs, Manu Agarwal, Martin P. Grunthaner
  • Patent number: 10201101
    Abstract: Disclosed is a display apparatus which does not use some elements of cases and set cover members necessary for producing the display apparatus and thus can minimize a thickness and enhance a sense of beauty with an innovative design. The display apparatus includes a display panel, a panel supporting member, an adhesive member, a guide frame, and a cover member. The panel supporting member is disposed to have a side inserting space, and supports a rear edge of the display panel. The adhesive member is disposed at the panel supporting member, and couples the display panel and the panel supporting member. The guide frame supports the panel supporting member. The cover member is inserted into the side inserting space of the panel supporting member, and surrounds a side surface of the guide frame, thereby enabling movement of the panel supporting member.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: February 5, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: HyunSeok Lee, SangRyeon Park
  • Patent number: 10198114
    Abstract: A touch sensing circuit and its control method is disclosed herein. The touch sensing circuit includes a plurality of detecting units. The detecting units are arranged in an array, in which each detecting unit includes a sensing pad, a first switch and a second switch. The first switch is configured to selectively conduct the sensing pad and one of a plurality of signal lines. The second switch is configured to selectively conduct two adjacent sensing pads. When the first switches in a first row in the array are on, the sensing pads in the first row are configured to output detecting signals to the signal lines according to a driving signal, and the second switches in a second row adjacent to the first row are on to conduct the sensing pads in the second row to receive and transmit the driving signal together.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: February 5, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Wu-Wei Lin, Jui-Chi Lo
  • Patent number: 10192520
    Abstract: A backlight unit includes a light source having a plurality of light-emitting units that emit light in at least three different colors, a light guide plate having N preset regions, where N is a positive integer, and a backlight control unit controlling the light-emitting units to provide light to the N preset regions. The light guide plate has a light incidence side, and the light source is disposed opposite to the light incidence side. The light emitted by the light source spreads in the preset regions. The backlight control unit acquires image data information corresponding to the preset regions, and derives chrominance and luminance information of the image corresponding to the preset regions, by calculating the acquired image data information. The backlight control unit then, based on the chrominance and luminance information of the preset regions, controls the light-emitting units to provide light to the preset regions.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: January 29, 2019
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Yuan Ding, Yongxin He, Guancheng Xiao