Patents Examined by Gene W Lee
  • Patent number: 11545101
    Abstract: According to an aspect, a display device includes: a first liquid crystal panel; a second liquid crystal panel; a light source configured to emit light; and a controller configured to control the first liquid crystal panel and the second liquid crystal panel based on an image signal corresponding to a resolution of the second liquid crystal panel. The first liquid crystal panel includes dimming pixels, and the second liquid crystal panel includes pixels. More than one of the pixels is arranged within a region of each of the dimming pixels. The controller performs blurring processing and determination of dimming gradation values as processing related to operation of the second liquid crystal panel. Each of the dimming gradation values corresponds to a highest gradation value set after the blurring processing among gradation values set for the more than one pixel arranged within the region of each of the dimming pixels.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: January 3, 2023
    Assignee: Japan Display Inc.
    Inventors: Kazunari Tomizawa, Kazuhiko Sako, Junji Kobashi, Tomoyuki Ishihara
  • Patent number: 11538429
    Abstract: The present disclosure provides a method, a device, a system, and a display device for adjusting a luminance viewing angle of a liquid crystal display panel. The method obtains an actual value of a luminance viewing angle corresponding to a current image, adjusts a positive and negative polarity driving voltage when the actual value is less than a threshold value to obtain a relational expression between the positive and negative polarity driving voltage and the luminance viewing angle, processes a difference value between the actual value and the threshold value to obtain a target driving voltage value, and adjusts the positive and negative polarity driving voltage according to the target driving voltage value, thereby realizing adjustment of the luminance viewing angle.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: December 27, 2022
    Assignee: Huizhou China Star Optoelectronics Technology Co., Ltd.
    Inventor: Bo Hai
  • Patent number: 11538382
    Abstract: The present disclosure discloses a driving integrated circuit for a display which is configured using MIM capacitors. The driving integrated circuit includes a first circuit formed in a substrate corresponding to a first region of a chip, a second circuit formed in the substrate corresponding to a second region of the chip, a first MIM capacitor formed in a first layer over the substrate and having a first capacity for the first circuit, and a second MIM capacitor formed in a second layer over the substrate and having a second capacity for the second circuit.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: December 27, 2022
    Assignee: Silicon Works Co., Ltd
    Inventor: Hee Joo Kim
  • Patent number: 11527187
    Abstract: Provided is a display device for providing a constant brightness for each area by including an area sensing part configured to determine a position value of an input image in the display device, and determine an area range according to the position value to output an area value, a gradation value determining part configured to output a first gradation value corresponding to a brightness of the input image according to the area value, a control part configured to output a corrected gradation value corresponding to the first gradation value, and a display part configured to display a corrected image having the corrected brightness corresponding to the corrected gradation value.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: December 13, 2022
    Inventors: Chang Ho Hyun, Kyemoon Lee, Jachul Hwangse
  • Patent number: 11521563
    Abstract: Certain embodiments are directed to techniques (e.g., a method, an apparatus, and non-transitory computer readable medium storing code or instructions executable by one or more processors) for mitigating the flicker on the displays at low driving frequencies due to drops of the voltage holding ratio of the materials for the display. The techniques to compensate for flicker in a liquid crystal display can include generating a dynamic waveform for the backlight of the display. The dynamic waveform can be synchronized with the driving rate of the liquid crystal display such that the luminosity of the backlight increases during periods when the voltage-holding ratio drops in the materials of the display. In this way, a liquid crystal material can be utilized in a display to generate reduced power consumption with liquid crystal rate minimizing the flicker in response to the drops of the voltage-holding ratio.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: December 6, 2022
    Assignee: APPLE INC.
    Inventors: Zhibing Ge, Chengrui Le, Yuechen Wu, Xiaokai Li, Lingyu Hong, Chaohao Wang, Shih-Chyuan Fan Jiang
  • Patent number: 11514852
    Abstract: A pixel array is provided. The pixel array includes a plurality of red pixels, a plurality of green pixels, and a plurality of blue pixels. Each green pixel includes a light emitting diode (LED), a first transistor, a second transistor, a third transistor, and a fourth transistor. The LED receives a system low voltage. The first transistor receives a first data signal and a first scan signal. The second transistor is coupled to a second end of the first transistor and the anode of the light emitting diode. The third transistor receives a system high voltage and a first control signal, and is coupled to a first end of the second transistor. The fourth transistor is coupled to the anode of the light-emitting diode of an adjacent green pixel, a control terminal of the third transistor, and the anode of the light-emitting diode.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: November 29, 2022
    Assignee: Au Optronics Corporation
    Inventors: Ya-Jung Wang, Jing-Wun Jhang, Rong-Fu Lin, Nien-Chen Li, Hsien-Chun Wang, Che-Chia Chang, June Woo Lee, Hsin-Ying Lin, Chia-Ting Hsieh, Chien-Fu Huang, Sung-Yu Su
  • Patent number: 11514833
    Abstract: A transparent display device includes a transparent display panel which displays an image, a scan driver which provides a scan signal to the transparent display panel, a data driver which converts image data into a data signal based on an application gamma curve, and which provides the data signal to the transparent display panel, a timing controller which controls the scan driver and the data driver, a luminance value compensator which calculates a perception luminance of the transparent display panel based on a luminance of incident light that is incident on the transparent display panel and a transmittance of the transparent display panel, and a gamma curve adjuster which adjusts the application gamma curve based on a reference gamma value of a reference gamma curve and the perception luminance of the transparent display panel.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: November 29, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Jun Seo, Hyosun Kim, Yongwoo Yi, Youra Kim
  • Patent number: 11501718
    Abstract: A digital-analog converter of the disclosure converts digital image data to generate analog data signals. The digital-analog converter includes a voltage divider which generates a plurality of gamma reference voltages based on a first reference voltage and a second reference voltage; a global ramp including a plurality of gamma decoders which generates a plurality of global gamma voltages based on the gamma reference voltages; a decoder which selects one of the global gamma voltages according to the digital image data to generate the analog data signals; and a ramp controller which turns off at least some of the gamma decoders based on the digital image data.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: November 15, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyung Gun Ma, Oh Jo Kwon, Ji Woong Kim, Jun Yong Song, Seong Joo Lee, Sang Hyun Heo
  • Patent number: 11501685
    Abstract: A display device includes: a pixel unit including first pixels disposed in a first pixel area and second pixels disposed in a second pixel area; an image data corrector adjusting a limit grayscale of first image data corresponding to the first pixel area based on a dimming level defining a maximum luminance at which the pixel unit is able to emit light, and correcting the first image data based on the limit grayscale; a data driver supplying data signals to the pixel unit based on the corrected first image data and second image data corresponding to the second pixel area; and a scan driver supplying scan signals to the pixel unit.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: November 15, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jong Woong Park
  • Patent number: 11501679
    Abstract: A driving circuit includes an S stage register, a first connect line, an (S+A) stage register and a second connect line. The S stage register receives an S stage control signal through a first switch unit and a second switch unit, so that the S stage register performs voltage regulation and outputs an S stage scan signal. The first connect line is electrically connected to the first switch unit of the S stage register. A third switch unit of the (S+A) stage register is electrically connected to the first connect line and a fourth switch unit of the (S+A) stage register for receiving the S stage scan signal, so that The (S+A) stage register performs voltage regulation. The second connect line is electrically connected to the second switch unit of the S stage register and the fourth switch unit of the (S+A) stage register.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: November 15, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Wei-Li Lin, Che-Wei Tung
  • Patent number: 11488545
    Abstract: Device comprising: a rear panel comprising a network of backlighting elements, a front panel comprising a network of optical valves which are each capable of modulating the brightness of a single primary colour. By the modulation of chrominance which is added to the modulation of luminance for the backlighting elements of the rear panel, the device according to the invention makes it possible to display the images with even more contrast and better quality. A specific control mode makes it possible to avoid the colour “interferences”.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: November 1, 2022
    Assignee: INTERDIGITAL MADISON PATENT HOLDINGS, SAS
    Inventors: Louis Chevallier, Jean-Ronan Vigouroux, Jonathan Kervec, Pascal Benoit
  • Patent number: 11488537
    Abstract: A display device includes first dots connected to first scan lines, second dots connected to second scan lines and alternately disposed with the first dots in a first direction and a second direction different from the first direction, a scan driver including first stages respectively connected to the first scan lines and second stages respectively connected to the second scan lines, and a data driver connected to the first dots and the second dots through data lines. The first stages are connected to first clock lines, the second stages are connected to second clock lines, first stages except a first start stage are respectively connected to corresponding first scan lines of corresponding previous first stages, and second stages except a second start stage are respectively connected to corresponding second scan lines of corresponding previous second stages.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: November 1, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Hyuk Park, Hong Soo Kim, Jin Young Roh, Bong Hyun You, Hyo Jin Lee, Jae Keun Lim
  • Patent number: 11480795
    Abstract: The disclosed waveguide display device may include a waveguide and one or more projector assemblies configured to project image light into the waveguide, where each of the one or more projector assemblies includes a first monochromatic emitter array having a plurality of emitters of a first color disposed in a two-dimensional configuration and a second monochromatic emitter array having a plurality of emitters of a second color disposed in a two-dimensional configuration. The display device may also include at least one application specific integrated circuit (ASIC) configured to drive the first and second monochromatic emitter arrays to emit images of the first and second color along a common axis, with the first color being different from the second color. Various other devices, systems, and methods are also disclosed.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: October 25, 2022
    Assignee: Meta Platforms Technologies, LLC
    Inventors: James Ronald Bonar, Gareth Valentine
  • Patent number: 11482157
    Abstract: Provided is a display device including a pixel unit in which each of pixel rows extends in a first direction, odd numbered pixel rows and even numbered pixel rows are alternately disposed in a second direction, and pixels included in the pixel rows are designated as dots having two or more units, a gray difference calculator that calculates difference between representative grays of dots adjacent in the second direction among dots of a p-th pair of the pixel rows, an edge detector that increases an edge dot number when a first condition in which the difference between the representative grays is larger than a first threshold value is satisfied, and a first pattern detector that increases an edge number when the edge dot number is larger than a second threshold value, and that generates a first pattern detection signal when the edge number is larger than a third threshold value.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: October 25, 2022
    Inventors: Jae Keun Lim, Hong Soo Kim, Jin Young Roh, Se Hyuk Park, Hyo Jin Lee
  • Patent number: 11475815
    Abstract: The present disclosure provides a driving method, a driving circuit, and a display device. The driving method includes steps of receiving a data signal of a first standard, generating a first data frame, and driving a display panel at a refresh frequency of the first data frame; and receiving the data signal of the second standard, calculating and generating at least one transition frame according to the data signal of the first standard and a data signal of a second standard, and driving the display panel at a refresh frequency corresponding to the at least one transition frame. A length of one frame time of the at least one transition frame is between a length of one frame time of the first data frame and a length of one frame time of the second data frame.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: October 18, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventors: Feilin Ji, Wei Chen
  • Patent number: 11468818
    Abstract: A computer-implemented method includes: computing, by a computing device, average pixel colors of a plurality of windows of a screen of a device; normalizing, by the computing device, the average pixel colors of the screen of the device; converting, by the computing device, the normalized average pixel colors of the screen of the device to average pixel gray scale colors; creating, by the computing device, at least one adaptive filter which corresponds to at least one of the average pixel gray scale colors; and overlaying, by the computing device, the at least one adaptive filter to at least one window of the windows of the screen of the device.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: October 11, 2022
    Assignee: KYNDRYL, INC.
    Inventors: Mauro Marzorati, Paul Llamas Virgen, Priyansh Jaiswal, Peeyush Jaiswal
  • Patent number: 11462143
    Abstract: An information processing method includes obtaining an area brightness adjustment instruction, and adjusting brightness of a first area of a display screen based on the area brightness adjustment instruction, so that the brightness of the first area is same as brightness of a second area of the display screen. The first area corresponds to a collection area of an image collection assembly. The image collection assembly senses light passing through the first area of the display screen to form an image. The first area is a partial area of the display screen. The second area is an area of the display screen excluding the first area.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: October 4, 2022
    Assignee: LENOVO (BEIJING) LIMITED
    Inventors: Hailong Wu, Lipeng Wu
  • Patent number: 11443685
    Abstract: A display device includes a processor circuit, a driver circuit, and a display panel. The driver circuit is coupled to the processor circuit to detect whether there is abnormal transmission between the processor circuit and the driver circuit. The display panel is coupled to the driver circuit. The display panel includes a display array and a shift register circuit. The display array is to display an image. The shift register circuit is coupled to the display array. When there is the abnormal transmission in a first display period of a first frame, the driver circuit outputs a control signal having a disable level in the first display period to the shift register circuit to control the shift register circuit not to operate in order to stop updating the image.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: September 13, 2022
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Tso-Hua Chien, Huang-Chin Tang
  • Patent number: 11443703
    Abstract: A device for driving a backlight assembly of a display device includes: a block division unit for dividing the input image into plural blocks and a duty cycle determination unit. The duty cycle determination unit is used for: generating a histogram of gray levels of pixels of each block; obtaining a high gray level and a median gray level of each block according to the histogram; obtaining a high gray quantity based on the high gray level and a median gray quantity of the median gray level of each block according to the histogram; obtaining a weight value of each block according to the high gray level, the high gray quantity, the median gray quantity, and a lookup table; and calculating a duty cycle of a driving signal of each block according to the weight value, the high gray level, and the median gray level.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: September 13, 2022
    Assignee: HIMAX TECHNOLOGIES LIMITED
    Inventor: Tung-Ying Wu
  • Patent number: 11435836
    Abstract: A device that is capable of performing tap detection and other gesture detection using data from an accelerometer. Motion data from the accelerometer is filtered and processed to detect motion. If motion is detected filtered motion data may be processed using a first neural network to detect a tap gesture, which may include one or multiple taps. Motion data may also be processed using a second neutral network to detect other gestures, which may be turned on or off based on a location of the device. Actions may be performed in response to a detected gesture, where the action may be performed by the device or by another device or system.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: September 6, 2022
    Assignee: Amazon Technologies, Inc.
    Inventor: Steven Sensarn