Intensity Or Color Driving Control (e.g., Gray Scale) Patents (Class 345/690)
  • Patent number: 10690986
    Abstract: An electronic device has an electrically adjustable shutter. The shutter may be placed in a transparent state or a nontransparent state. The shutter may overlap a portion of a display, may overlap a liquid contact indictor or a structure with text in a device, or may overlap an optical component such as an optical proximity sensor, ambient light sensor, visible light-emitting diode or laser, infrared light-emitting diode or laser, visible light image sensor, or infrared light image sensor. Control circuitry in the electronic device may place the shutter in an opaque state to hide an overlapped component from view or may place the shutter in a transparent state to allow the overlapped component to transmit or receive light. The adjustable shutter may exhibit changes in its transmission spectrum in different modes of operation and may be used as a camera filter or neutral density filter.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: June 23, 2020
    Assignee: Apple Inc.
    Inventors: Michael W. Firka, Ashley E. Fletcher, Benjamin J. Pope, Lee E. Hooton, Scott A. Myers, Benjamin Shane Bustle, Garam Young, Blake M. Coughenour
  • Patent number: 10692177
    Abstract: Embodiments relate to a first demosaicing circuit and a second demosaicing circuit that can perform demosaicing of image data. The first demosaicing circuit processes received image data to generate a first demosaiced image for obtaining statistic information on the received image data. The second demosaicing circuit performs demosaicing of the received image data to generate a second demosaiced image. A processing circuit pipeline performs at least one of resampling, noise processing, color processing and output rescaling performed on the second demosaiced image based on the statistics information obtained from the first demosaiced image.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: June 23, 2020
    Assignee: Apple Inc.
    Inventors: Muge Wang, David R. Pope
  • Patent number: 10692466
    Abstract: A display apparatus is provided. The display apparatus includes: a display; a storage configured to store output luminance information of a plurality of grayscale values according to brightness information; and a processor configured to: obtain a plurality of grayscale adjustment curves based on the output luminance information stored in the storage, obtain a plurality of calibration effects by applying each of the plurality of grayscale adjustment curves to an input image, obtain a grayscale adjustment curve corresponding to a maximum calibration effect from among the plurality of calibration effects, adjust a grayscale of each pixel of the input image based on the obtained grayscale adjustment curve to generate an output image, and output the output image through the display.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: June 23, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-moon Lim, Young-su Moon, Young-hoon Jeong, Chun Zhao
  • Patent number: 10692432
    Abstract: The present disclosure provides a pixel driving circuit, a driving method thereof, and a layout structure of a transistor. The pixel driving circuit includes a storage capacitor, a first to a seventh switching transistor, a first driving transistor, a second driving transistor, and an organic light emitting diode. The layout structure includes a circuit node and an active layer connected to the circuit node; the active layer includes: a first active layer, a second active layer, and a third active layer; a first source, a drain and a second source connected to the first, the second and the third active layer, respectively; a first gate, a second gate, and a third gate corresponding to the first, the second, and the third active layer respectively; and a gate pattern composed of the first gate, the second gate, and the third gate being located above the circuit node and the active layer.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: June 23, 2020
    Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.
    Inventors: Lu Zhang, Guozhe Wen, Zhenzhen Han, Xiujian Zhu
  • Patent number: 10692434
    Abstract: A pixel circuit, a display panel, a display device and a driving method. The pixel circuit includes a storage capacitor, an organic light emitting diode, a driving transistor, an emission control circuit, a reset circuit, a threshold compensation circuit, a first data write circuit, a reference voltage write circuit, and an initializing circuit.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: June 23, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Yi Zhang, Kai Zhang, Minghua Xuan, Young Yik Ko, Lujiang Huangfu
  • Patent number: 10685601
    Abstract: A pixel circuit includes a driving transistor, a write transistor, a first switching transistor, a second switching transistor, a first storage capacitor, and a second storage capacitor. The driving transistor controls a current flowing in a light-emitting device. The write transistor controls application of a signal voltage to a gate of the driving transistor. The first switching transistor controls a gate voltage of the driving transistor upon correction operation that allows a gate-source voltage of the driving transistor to come close to a threshold voltage of the driving transistor. The second switching transistor is provided at a path between first and second terminals. The first storage capacitor is provided at a path between the gate of the driving transistor and the first terminal. The second storage capacitor is provided at a path between the gate of the driving transistor and the second terminal.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: June 16, 2020
    Assignee: JOLED INC.
    Inventor: Tetsuro Yamamoto
  • Patent number: 10685604
    Abstract: A pixel driving circuit and a display device are provided. The pixel driving circuit includes: a reset module, a compensation module electrically connected to the reset module, and a light emission module electrically connected to the compensation module. The reset module is configured to receive a reset control signal, and, in response to the reset control signal, reset the compensation module. The compensation module is configured to receive a scan signal, and, in response to the scan signal, receive a data signal and a compensation voltage, to complete performing threshold voltage compensation. The light emission module is configured to receive a light emission control signal, and, in response to the light emission control signal, emit light. Therefore, a threshold voltage is effectively compensated, and contrast of a displayed image is increased.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: June 16, 2020
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Xue Li
  • Patent number: 10679582
    Abstract: A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: June 9, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Ajit Ninan
  • Patent number: 10681302
    Abstract: Methods, systems, and computer readable media operable for adjusting brightness of a display screen. A first interface is configured to provide information, including display brightness information, to the display device through a high-definition multimedia interface (HDMI). Brightness circuitry is configured to process brightness information from one or more sensors detecting ambient light level. A module is configured to generate control information to control the brightness of the display device and to provide the control information to the display device.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: June 9, 2020
    Assignee: ARRIS ENTERPRISES LLC
    Inventors: Qi Wang, Luyan Sun, Qili Gu, Wanting Yang, Hongbin Zhou
  • Patent number: 10679576
    Abstract: A display device includes: a display unit including sub-pixels; and a signal processor configured to output output signals based on pixel data. A set of the sub-pixels includes first to fourth sub-pixels. The fourth sub-pixel is assigned a first color component as a white component in one of the two pieces of the pixel data arranged in one direction. The first to third sub-pixels are assigned second color components other than the first color component. When a signal level for lighting one or more of the first to third sub-pixels in the set of the sub-pixels is at a first level, and a signal level for one or more of the first to third sub-pixels is at a second level lower than the first level, the signal processor increases the signal levels corresponding to the second color components as a signal level corresponding to the first color component increases.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: June 9, 2020
    Assignee: Japan Display Inc.
    Inventor: Kazunari Tomizawa
  • Patent number: 10677923
    Abstract: The present disclosure describes optoelectronic modules that, in some implementations, address the need to combine precise measurements of scenes over a range of near and far distances. For example, an optoelectronic module can include a light emitter operable to direct modulated structured light onto a scene. The module includes an imager to receive reflected light signals from the scene. The imager includes demodulation pixels operable to provide amplitude and phase information based on the reflected light signals. Various techniques can be used to derive distance or three-dimensional information about the scene based on the signals from the pixels.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: June 9, 2020
    Assignee: ams Sensors Singapore Pte. Ltd.
    Inventors: Bernhard Büttgen, Moshe Doron
  • Patent number: 10672801
    Abstract: The present invention provides a TFT substrate. The TFT substrate includes: a first display area and a second display area that are sequentially arranged in a vertical direction. Main pixel electrodes and sub pixel electrodes of the first display area are arranged in mirror symmetry with respect to main pixel electrodes and sub pixel electrodes of the second display area, respectively, about a horizontal division line of the first display area and the second display area. A scanning direction of the first display area is such that scanning is conducted from the side that the sub pixel electrode of one of the sub-pixels of the first display area is located toward the side that the main pixel electrode of the one of the sub-pixels is located. A scanning direction of the second display area is opposite to the scanning direction of the first display area.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: June 2, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Qiming Gan
  • Patent number: 10672857
    Abstract: First type of pixel lines include first type of end pixels each disposed at the end on the opposite side of the first direction and at the end on the opposite side of the second direction of a pixel line extending in the second direction. The second type of pixel lines include second type of end pixels each disposed at the end on the opposite side of the first direction and at the end on the opposite side of the second direction of a pixel line extending in the second direction. Luminance values of the plurality of first type of end pixels are smaller than luminance values of internal pixels surrounded by other pixels in four directions of the first direction, the opposite direction of the first direction, the second direction, and the opposite direction of the second direction in response to the same input picture signal.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: June 2, 2020
    Assignee: TIANMA JAPAN, LTD.
    Inventor: Yojiro Matsueda
  • Patent number: 10670914
    Abstract: A backlight control method is provided. The method includes: determining, based on a global backlight brightness value, a backlight brightness interval in which the global backlight brightness value is located; determining, according to a correspondence between the backlight brightness interval and a backlight gain coefficient table, a backlight gain coefficient table corresponding to the backlight brightness interval, where the backlight gain coefficient table is configured to indicate a gain coefficient corresponding to a partition backlight brightness value; determining, according to a partition backlight brightness value of each of backlight partitions and the backlight gain coefficient table, a gain coefficient of each of the backlight partitions; and driving each of the backlight partitions according to the gain coefficient of each of the backlight partition and the partition backlight brightness value of each of the backlight partitions.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: June 2, 2020
    Assignees: Qingdao Hisense Electronics Co., Ltd., Hisense International Co. Ltd., Hisense USA Corporation
    Inventor: Yuxin Zhang
  • Patent number: 10672340
    Abstract: The present disclosure discloses an OLED display panel, a method for driving the same and a display device. A high-potential voltage and a low-potential voltage are supplied to each shift register unit through a power supply, respectively. A voltage difference between a high-potential voltage and a low-potential voltage supplied to a first shift register unit by the power supply is a first voltage difference, and a voltage difference between a high-potential voltage and a low-potential voltage supplied to a second shift register unit by the power supply is a second voltage difference. The first voltage difference differs from the second voltage difference.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: June 2, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yue Li, Dongxu Xiang, Renyuan Zhu, Yana Gao, Xingyao Zhou
  • Patent number: 10663641
    Abstract: The disclosure provides a display panel and a display device. The display panel includes an upper substrate (001) and a lower substrate (002) arranged opposite to each other, a liquid crystal layer (003), a waveguide layer (004), a plurality of grating coupling structures (005), and a plurality of electrode structures (006).
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: May 26, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Wang, Yafeng Yang, Xiaochuan Chen, Xinli Ma
  • Patent number: 10665148
    Abstract: A display apparatus includes a display panel, a first driver and a second driver. The display panel includes a plurality of gate lines and a plurality of data lines. The display panel is configured to display an image based on input image data. The first driver is configured to output compensating gate signals having the same timing to the gate lines during a first period and scan gate signals having different timings to the gate lines during a second period. The second driver is configured to apply a compensating data voltage corresponding to a compensating grayscale value to the data lines during the first period and a target data voltage corresponding to a target grayscale value to the data lines during the second period.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: May 26, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun-Koo Kang, Jae-Han Lee, Ok-Kwon Shin
  • Patent number: 10656434
    Abstract: The display device includes a first display panel and a second display panel. The first display panel includes first pixel structures having a first pixel pitch. The second display panel includes second pixel structures having a second pixel pitch. The first display panel is overlapped with the second display panel. A user would not see a moiré pattern generated by the display device by adjusting the first pixel pitch, the second pixel pitch, and an effective distance between the first display panel and the second display panel.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: May 19, 2020
    Assignees: HannStar Display (Nanjing) Corporation, HannStar Display Corporation
    Inventors: Yu-Chen Liu, Wei-Chih Hsu, Yen-Chung Chen
  • Patent number: 10657868
    Abstract: A display apparatus may comprise a display section and circuitry. The display section may comprise a plurality of display units arranged in a two-dimensional array, wherein each of the display units comprises a plurality of pixels arranged in a matrix, and each of the plurality pixels comprises a plurality of light-emitting devices that are each configured to emit a different color of light. The circuitry may be configured to generate a corrected image signal based on an uncorrected image signal and correction factors that correct luminance and chromaticity of the light-emitting devices, including at least some correction factors determined by adjusting light emission intensity ratios of first light-emitting devices that are configured to emit light of a particular color and are disposed in different ones of the plurality of pixels.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: May 19, 2020
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Goshi Biwa, Norifumi Kikuchi, Ippei Nishinaka
  • Patent number: 10657905
    Abstract: The present disclosure proposes a method and apparatus for compensating for brightness of a display device. The method for compensating for the brightness comprises: acquiring ambient temperature information and display data information of the display device; determining compensation information corresponding to the acquired ambient temperature information and the acquired display data information; and compensating for backlight driving signals and/or the display data information of the display device according to the compensation information to adjust the brightness of the display device.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: May 19, 2020
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Pengtao Li
  • Patent number: 10657872
    Abstract: A display device includes a plurality of gate lines, configured to output corresponding scan signals to corresponding pixels; a plurality of data lines, configured to receive display data and output corresponding pixel voltages to corresponding pixels, where the plurality of data lines includes 12 successive data lines from left to right; a gate driver, electrically coupled to the gate lines, configured to drive the pixels; and a data driver, electrically coupled to the data lines, configured to provide data signals to the pixels, where the data driver respectively provides data with polarities of: positive, negative, positive, negative, positive, negative, negative, positive, negative, positive, negative, and positive to the 12 data lines, and each column of pixels includes pixels in two forms; when the display data has a same gray scale, the data driver respectively provides two different pixel voltages to the pixels in two forms.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: May 19, 2020
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Kun-Cheng Tien, Chien-Huang Liao, Jia-Long Wu
  • Patent number: 10656506
    Abstract: A high-speed display device inputs first video information having a first frame rate and a gradation of first number of bits, generates a set of M (integer of 2 or more) variation gradation values having a second number of bits smaller than the first number of bits and having a sum corresponding to the respective gradation values of the gradations of the first number of bits, and distributes the values from the set of the M variation gradation values corresponding to the respective gradation values of the first video information obtained from a variation gradation value output to the corresponding M frames for each frame of the first video information to generate second video information having a second frame rate that is M times the first frame rate and display video based on the second video information.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: May 19, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Ryuji Fuchikami
  • Patent number: 10657906
    Abstract: Techniques for driving a dual modulation display include generating backlight drive signals to drive individually-controllable illumination sources. The illumination sources emit first light onto a light conversion layer. The light conversion layer converts the first light into second light. The light conversion layer can include quantum dots or phosphor materials. Modulation drive signals are generated to determine transmission of the second light through individual subpixels of the display. These modulation drive signals can be adjusted based on one or more light field simulations. The light field simulations can include: (i) a color shift for a pixel based on a point spread function of the illumination sources; (ii) binning difference of individual illumination sources; (iii) temperature dependence of display components on performance; or (iv) combinations thereof.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: May 19, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Ajit Ninan, Chun Chi Wan
  • Patent number: 10650738
    Abstract: A pixel circuit includes three transistors, a capacitor, and an OLED. The first transistor includes a gate terminal for receiving a first control signal, a first terminal connected to a first node, and a second terminal connected to a second node. The second transistor includes a gate terminal for receiving a second control signal, a first terminal connected to the second node, and a second terminal connected to a third node. The third transistor includes a gate terminal connected to the first node, a first terminal for receiving a first power signal, and a second terminal connected to the third node. The capacitor may receive an initialization signal and is connected to the first node. The OLED is connected to the third node and may receive a second power signal. The control signals have same voltage levels in a data writing period and have different voltage levels in other periods.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junhyun Park, Cheol-Gon Lee, Yang-Hwa Choi
  • Patent number: 10650747
    Abstract: A display device includes: a timing controller to provide data including a pre-emphasis value and an image data value; a gamma reference voltage supplier to selectively supply one of a first gamma reference voltage and a second gamma reference voltage different from the first gamma reference voltage; and a data driver to supply a pre-emphasis voltage, that is generated based on the pre-emphasis value and the first gamma reference voltage, to data lines during a first period of a horizontal period, and to supply a data voltage, that is generated based on the image data value and the second gamma reference voltage, to the data lines during a second period of the horizontal period. The timing controller is to control the gamma reference voltage supplier to supply the first gamma reference voltage during the first period and to supply the second gamma reference voltage during the second period.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Beom Cho, Hee Bum Park, Song Yi Han
  • Patent number: 10650504
    Abstract: An apparatus includes a first brightness value acquisition unit configured to obtain a first absolute brightness value by converting a representative brightness value of an image obtained using an image pickup unit, into absolute brightness, a first determination unit configured to determine an output value based on an input-output characteristic of an output device, the output value corresponding to the first absolute brightness value obtained by the first brightness value acquisition unit, and a second determination unit configured to determine information about exposure corresponding to the output value.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: May 12, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Akihito Shin
  • Patent number: 10650761
    Abstract: The present disclosure relates to a method of displaying an image on a low refresh rate mode and a display implementing the same, and the display in accordance with an exemplary aspect of the present disclosure includes a timing controller to set D display frame and S skip frame in N frame configuring a group of an unit on the low refresh rate mode and control a polarity change of the pixels in the skip frame according to a ratio of D and S.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: May 12, 2020
    Assignee: LG Display Co., Ltd.
    Inventor: Hojun Lee
  • Patent number: 10650733
    Abstract: A light-emitting control signal generation circuit, a driving method thereof, and a display device are provided. The light-emitting control signal generation circuit includes a first control unit, a second control unit, and an output unit. The first control unit controls a potential-level on a first node under control of an effective pulse signal, a first clock signal, a second clock signal, and a first voltage signal. The second control unit controls a potential-level on a second node under control of the effective pulse signal, the first clock signal, the second clock signal, the first voltage signal, a second voltage signal, and the potential-level on the first node. The output unit transmits the first voltage signal to an signal output terminal under control of the potential-level on the first node, and transmits the second voltage signal to the signal output terminal under control of the potential-level on the second node, respectively.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: May 12, 2020
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Yingteng Zhai
  • Patent number: 10651422
    Abstract: The present disclosure provides a light-emitting apparatus including a plurality of types of light-emitting pixels, each of the light-emitting pixels including a reflective electrode, an electrode-protective layer, an organic compound layer containing a light-emitting layer, and a light-output electrode in this order and having a resonator structure, wherein at least one type of the plurality of types of light-emitting pixels is a light-emitting pixel having a greater interference order than other types of light-emitting pixels, and the electrode-protective layer of the light-emitting pixel having the greater interference order has a greater layer thickness than the electrode-protective layers of the other types of light-emitting pixels.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: May 12, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Norifumi Kajimoto
  • Patent number: 10642083
    Abstract: Electronic devices and methods for compensating for temperature-dependent fluctuations in a display include receiving a temperature index may be received from a sensor and/or calculations that indicates a temperature of the system, a pixel, a panel, a grid of a panel, or a combination thereof. The temperature is used to predict a voltage change across an emissive element (VHILO), such as an organic light emitting diode (OLED). This predicted voltage change is then compensated for before emission.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: May 5, 2020
    Assignee: Apple Inc.
    Inventors: Injae Hwang, Rui Zhang, Hung Sheng Lin, Hyunsoo Kim, Hyunwoo Nho, Jesse A. Richmond, Jie Won Ryu, Junhua Tan, Kingsuk Brahma, Shengkui Gao, Shiping Shen, Sun-Il Chang
  • Patent number: 10643549
    Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated by a backlight unit that includes an array of light-emitting diodes. A backlight brightness selection circuit may select brightness values for the light-emitting diodes. The backlight brightness selection circuit may select the brightness values based on image data, based on brightness values used in previous image frames, based on device information, and/or based on sensor information. The backlight brightness selection circuit may select the backlight brightness levels to mitigate visible artifacts such as flickering and halo. The backlight levels selected by the backlight brightness selection may be modified by a power consumption compensation circuit. The power consumption compensation circuit may estimate the amount of power consumption required to operate the backlight using the target brightness levels and may modify the target brightness levels to meet maximum power consumption requirements.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: May 5, 2020
    Assignee: Apple Inc.
    Inventors: Tobias Jung, Marc Albrecht, Duane M. Petrovich, Sean C. Chang, David S. Zalatimo, Pierre-Yves Emelie, Manev Luthra, Chengrui Le, Lingyu Hong, Wei H. Yao
  • Patent number: 10643551
    Abstract: A method for driving a display, a display device, and a source driver. The method includes receiving and storing data obtained by dividing and compressing an image frame, decompressing the data, scanning the decompressed data, storing a result of the scanning, and displaying an image corresponding to the scan result.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: May 5, 2020
    Assignee: Anapass Inc.
    Inventors: Joon Bae Park, Do Wan Kim
  • Patent number: 10643555
    Abstract: Devices and methods for useful in providing localized synchronized and/or dynamic in-band internal gamma code adjustment per frame period are provided. By way of example, a display panel includes a data driver, which includes a first DAC configured to provide an internal gamma voltage signal to cause a first adjustment to an image data signal. The first adjustment is configured to selectively adjust the image data signal based at least in part on a refresh rate or a frame rate of the display panel. The data driver includes a second DAC coupled to the first DAC and configured to provide an external gamma voltage signal configured to provide a second adjustment to the image data signal, and an output buffer configured to supply the image data signal to pixels of the display panel, wherein the image data signal comprises the first adjustment and the second adjustment.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: May 5, 2020
    Assignee: Apple Inc.
    Inventors: Fenghua Zheng, Christopher P. Tann, Sandro H. Pintz, David S. Zalatimo, Jun Qi, Zhibing Ge
  • Patent number: 10636381
    Abstract: A display device includes a display panel and at least one light modulation panel. The display panel includes a substrate and a plurality of micro light emitting semiconductors disposed on the substrate. The light modulation panel is disposed on a light emitting surface of the display panel and includes a light modulation unit. The light modulation panel is configured to change a transmittance of the light modulation unit according to a light modulation control signal.
    Type: Grant
    Filed: August 25, 2018
    Date of Patent: April 28, 2020
    Assignee: PLAYNITRIDE INC.
    Inventors: Yun-Li Li, Tzu-Yang Lin
  • Patent number: 10634947
    Abstract: An edge backlight module, a display apparatus and a backlight controlling method thereof are provided. Each light guide plate (LGP) is divided into longitudinal region(s) in the same direction. The LGPs are arranged in a stacked manner. Each two adjacent LGPs are arranged as upper LGP being completely overlapped with the longitudinal region(s) of lower LGP. The longitudinal region overlapped with adjacent upper LGP is defined as a reflecting region. The longitudinal region not overlapped with adjacent upper LGP is defined as an emitting region. Each LGP has one emitting region. Each reflecting film is sandwiched between two adjacent LGPs. Light from a light emitting device is emitted from the emitting region. Combing with lighting control at lateral region(s) separately, an array region is formed. The light emitting device further includes a high saturation light emitter to render an effect with a high dynamic range and high saturation.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: April 28, 2020
    Assignee: Acer Incorporated
    Inventors: Yi-Chang Lai, Chih-Chiang Chen, Hsu-Hsiang Tseng, Ruey-Ching Shyu
  • Patent number: 10637004
    Abstract: Provided is an organic light-emitting element for emitting white light in which an optical distance L1 between a first emission layer (52) and a reflective electrode (80) satisfies Expression (a), and an optical distance L2 between a second emission layer (72) and the reflective electrode (80) satisfies Expression (b): (?1/8)×(3?(2?1/?))<L1<(?1/8)×(5?(2?1/?))??(a); and (?2/8)×(?(2?2/?)?1)<L2<(?2/8)×(?(2?2/?)+1)??(b), and in which a refractive index of a first charge transport layer (51) formed between a light extraction electrode (4) and the first emission layer (52) at the wavelength ?1 is 1.70 or less.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: April 28, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Norifumi Kajimoto
  • Patent number: 10636358
    Abstract: A method for improving display panel display effect and a display panel are disclosed, the method includes: pre-acquiring an external compensation lookup table corresponding to each pixel grayscale 255 in the display panel; introducing the external compensation lookup table to the storage unit and replacing the data corresponding to an original grayscale 255 in the preset voltage table; driving the PWM driving circuit according to a replaced data. It combines the external compensation method to improve the display effect of the PWM digital drive and avoids the problem that the PWM circuit cannot eliminate the unevenness of the display panel in the grayscale 255 and enhance the actual display effect of the display panel.
    Type: Grant
    Filed: October 21, 2017
    Date of Patent: April 28, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jian He, Ming-jong Jou
  • Patent number: 10628011
    Abstract: Disclosed are a method and apparatus for adjusting resolution of medical image. When adjusting resolution, a touch screen is used for display and input. A the method may include: detecting a touch operation inputted by a user through the touch screen under an interface state for displaying a digital image and generating touch information; identifying motion of the user's touch operation in accordance with the touch information and generating motion information; judging whether the detected touch motion meets a predetermined condition for adjusting resolution; if yes, computing an adjusted resolution based on the motion information and a predetermined computing method and displaying data with the adjusted resolution on a region desired to be adjusted on the interface; and when the detected touch motion fails to meet the predetermined condition for adjusting resolution, maintaining the display on the interface with an original resolution on the interface.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: April 21, 2020
    Assignees: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD., SHENZHEN MINDRAY SCIENTIFIC CO., LTD.
    Inventors: Wenke Niu, Ying Yin, Hao Hu
  • Patent number: 10629141
    Abstract: A first and second plurality of lighting elements are each configured to produce a desired overall luminance output for a backlight when illuminated at full power. If a measured luminance output is greater than a threshold, a controller supplies a non-zero power level less than full power to the first and second plurality of lighting elements. If the measured luminance output is less than the threshold, the controller increases the power supplied to only one of the first and second plurality of lighting elements, up to full power, to return the measured luminance output to at least said threshold.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: April 21, 2020
    Assignee: American Panel Corporation
    Inventor: William Dunn
  • Patent number: 10629150
    Abstract: The present disclosure provides a GOA driving circuit and a liquid display panel. The GOA driving circuit comprises a plurality of cascaded GOA units. An N-th GOA unit comprises a pull-up module, a pull-down module, a pull-up control module, a pull-down holding module, and a bootstrap capacitor module. The pull-up module, the pull-down module, the pull-down holding module, and the bootstrap capacitor module couple to an N-th gate signal node Qn.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: April 21, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Shuai Chen
  • Patent number: 10629631
    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: April 10, 2019
    Date of Patent: April 21, 2020
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Ming-Tsung Wang, Chih-Chung Liu, Yi-Hsiu Cheng, Wen-Qiang Yu
  • Patent number: 10629120
    Abstract: A pixel circuit and a driving method thereof, a display device are provided. The pixel circuit includes a first through eighth thin film transistors, a first capacitor, a second capacitor, and a light emitting diode. In the pixel circuit provided by the embodiment of the application, a compensation voltage provided by a compensation voltage signal line can partially compensate a supply voltage during an emission stage of the pixel circuit.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: April 21, 2020
    Assignee: KunShan Go-Visionox Opto-Electronics Co., Ltd.
    Inventor: Zhiyi Zhou
  • Patent number: 10629143
    Abstract: A display driving method includes: acquiring the original light source intensity of each of hues of the content to be displayed and in the preset display area; setting up the driving light source intensity in the display area to be three times of the original light source intensity; acquiring the original gray scale data group of each of pixel units of the content to be displayed and in the preset display area; according to the original gray scale data group of each of pixel units, dividing the original gray scale data group into a first gray scale data group, a second gray scale data group and a third gray scale data group; the gray scale of each of hues in the first gray scale data group is the smallest gray scale, the gray scale of each of hues of the second gray scale data group is the gray scale difference or the common gray scale of the gray scale differences, the third gray scale data group is the difference between the original gray scale data group and a gray scale sum.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: April 21, 2020
    Assignee: HKC CORPORATION LIMITED
    Inventor: Jianfeng Shan
  • Patent number: 10621951
    Abstract: A head mount display device includes a display panel which displays image based on an image signal, a calculator which calculates an initial image luminance and a watching image luminance based on an equation “log(Lth)=c1 log(La)+c2 log(w)+c3, where Lth is a determination luminance, La is an adaptive environment luminance, w is an offset, c1 is a first constant, c2 is a second constant, and c3 is a third constant” that is a modelling for a relationship of an adaptive environment luminance in which eyes of a user are adapted and a determination luminance in which the eyes of the user do not recognize a discomfort, and a luminance controller which changes the initial image luminance of the image to the watching image luminance during an adaptive time.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: April 14, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Jun Seo, Hyosun Kim, Rangkyun Mok, Yongwoo Yi
  • Patent number: 10621914
    Abstract: A display unit of the disclosure includes a unit pixel and a driving section that drives the unit pixel. The unit pixel includes a light-emitting device, a capacitor section having a first capacitor and a second capacitor that are coupled in series through a first node, a drive transistor that supplies a drive current corresponding to a potential difference across both ends of the capacitor section to the light-emitting device, and a first transistor that delivers a first voltage to the first node by turning on.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: April 14, 2020
    Assignee: Sony Corporation
    Inventor: Seiichiro Jinta
  • Patent number: 10621950
    Abstract: A system and a method for adjusting luminance flashes in a video stream are disclosed. The method includes identifying a sequence of frames, having the luminance flashes, from the video stream. The sequence of frames is extended at both sides (start and end) based on a predefined threshold. The method further comprises dividing an extended sequence of frames into at least three segments. Further, the method includes determining a correction factor and a correction constant for each of the at least three segments. Thereafter, the method includes modifying luminance values of pixels of each of the at least three segments based on the correction factor and the correction constant, thereby adjusting the luminance flashes in the video stream.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: April 14, 2020
    Assignee: Interra Systems
    Inventors: Alok Kumar, Bhupender Kumar, Shekhar Madnani
  • Patent number: 10615152
    Abstract: A lighting component including a plurality of die transferred to the glass substrate. The transfer occurs by positioning the glass substrate to face a first surface of a die carrier carrying multiple die. A reciprocating transfer member thrusts against a second surface of the die carrier to actuate the transfer member thereby causing a localized deflection of the die carrier in a direction of the surface of the glass substrate to position an initial die proximate to the glass substrate. The initial die transfers directly to a circuit trace on the glass substrate. At least one of the die carrier or the transfer member is then shifted such that the transfer member aligns with a subsequent die on the first surface of the die carrier. The acts of actuating, transferring, and shifting are repeated to effectuate a transfer of the multiple die onto the glass substrate.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: April 7, 2020
    Assignee: Rohinni, LLC
    Inventors: Andrew Huska, Cody Peterson, Clinton Adams, Sean Kupcow
  • Patent number: 10615820
    Abstract: A continuous time delta sigma modulator is described in this application. In one example, the continuous time delta sigma modulator includes: a quantizer, a buffer module, a randomizer, and a reference module. The quantizer includes a comparator that generates a digital output based on a comparison of a reference potential with an input generated based on a sample of an analog signal. The buffer module stores the digital output for a predetermined delay period and outputs the digital output after the predetermined delay period as a delayed digital output. The randomizer randomizes the delayed digital output to generate a randomized digital output. The reference module modifies the reference potential based on the randomized digital output.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: April 7, 2020
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Bei-Shing Lien, Jaw-Juinn Horng, Tai-cheng Kee, Pang-yen Chin
  • Patent number: 10607527
    Abstract: Systems and methods for a six-primary color system for display. A six-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. The six-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: March 31, 2020
    Assignee: BAYLOR UNIVERSITY
    Inventor: Gary B. Mandle
  • Patent number: 10607551
    Abstract: A display system with temperature compensation includes (a) a backlight unit containing a light emitting diode (LED) array, (b) a liquid crystal display (LCD) containing a plurality of pixels for spatially modulating, according to respective LCD drive values of the pixels, transmission of light generated by the LED array, (c) a plurality of temperature probes mounted to the backlight unit for measuring a respective plurality of temperatures at the LED array, (d) a light-field simulator for simulating, at least in part based upon the temperatures, a light field at the LCD as generated by the LED array, and (e) an LCD drive solver for processing a target image and the light field simulated by the light-field simulator, to determine the LCD drive values required to display the target image as compensated for temperatures of the LED array.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: March 31, 2020
    Assignee: Dolby Laboratories Licesing Corporation
    Inventors: Qiqin Dai, Jon S. McElvain