Patents Examined by Gene W Lee
  • Patent number: 11942048
    Abstract: A display device includes: a display panel with pixels; a dimming panel with dimming pixels; and a light source. When a pixel is controlled to be lit in white and a predetermined condition is satisfied, a blurring region is formed, and light from the light source is transmitted through the blurring region and the pixel. When a pixel is controlled to be lit up in white and the predetermined condition is not satisfied, the blurring region is not formed, the dimming pixel overlapping the pixel on a straight line along a direction in which the display panel faces the dimming panel is controlled to transmit light, and light from the light source is transmitted through the dimming pixel and the pixel. The predetermined condition is satisfied when the pixel controlled to be lit in white is at a predetermined distance or farther from an outer edge of a display area.
    Type: Grant
    Filed: April 11, 2023
    Date of Patent: March 26, 2024
    Assignee: Japan Display Inc.
    Inventors: Tomoyuki Ishihara, Tomohide Oohira, Yasuhiko Yamagishi
  • Patent number: 11942022
    Abstract: A method of correcting input image data for a display device can include receiving input image data by a controller in the display device, a first portion of the input image data corresponding to a first region of a display panel in the display device and a second portion of the input image data corresponding to a second region of the display panel having a pixel density different than a pixel density of the first region; and correcting, by the controller, at least some of the input image data to generate corrected image data based on at least one white correction value or at least one monochromatic correction value.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: March 26, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: YeoMyeong Yoon, Li-Jin Kim
  • Patent number: 11934598
    Abstract: A displacement detection circuit (100) configured to implement a displacement detection method (500) for a pointing device (199) having at least one pixel array (190). The displacement detection circuit (100) includes at least one main calculator (110), at least one auxiliary calculator (111, 112, 113) at least one comparator (130) and at least one motion detector (150). The main calculator (110) is configured to calculate at least one main average (210) corresponding to the average of the at least one pixel array (190), which is compared to at least one auxiliary average (211, 212, 213) of the at least one auxiliary calculator (111, 112, 113). According to the result of the comparison, the at least one motion detector (150) indicates at least one direction (250) of displacement of the pointing device (199).
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: March 19, 2024
    Assignee: EM MICROELECTRONIC-MARIN SA
    Inventors: Jérôme Saby, Lorenzo Pierobon
  • Patent number: 11935451
    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: December 12, 2022
    Date of Patent: March 19, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Ho Hyun, Kyemoon Lee, Jachul Hwangse
  • Patent number: 11921300
    Abstract: An electronic device may be provided with optical markers. A marker may be formed from a coating. The coating may be patterned to form a two-dimensional optical code or may be patterned to form an outline or other recognizable marker structure that helps provide information about an electronic device. A device with a sensor such as a depth sensor or other sensor may gather information on the electronic device and its markers. This information may include information on images captured with an image sensor while the electronic device is illuminated by one or more light beams from the depth sensor or other light sources. Markers may be configured to serve as mixed reality optical markers in a mixed reality system. Analysis of the mixed reality marker images or other sensor data may reveal information on device type, device location, device size, device orientation, and other information on a marked device.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: March 5, 2024
    Assignee: Apple Inc.
    Inventors: Christopher D. Prest, Marta M. Giachino, Matthew S. Rogers, Que Anh S. Nguyen
  • Patent number: 11922846
    Abstract: Disclosed are a gate driving circuit and a display device. According to the gate driving circuit, in every five adjacent shift registers, the output control end of the first shift register is electrically connected to the input signal end of the fifth shift register; in every six adjacent shift registers, the output control end of the sixth shift register is electrically connected to the reset signal end of the first shift register.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: March 5, 2024
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Rui Ma, Xiaoye Ma, Xianjie Shao, Ruifang Du
  • Patent number: 11922849
    Abstract: A display apparatus including: a display panel including a plurality of display blocks; and a display panel driver configured to generate a power voltage based on a maximum grayscale value of input image data and a position of a maximum load block among the display blocks and configured to output the power voltage to the display panel, wherein the maximum load block has a largest load of the input image data among the display blocks.
    Type: Grant
    Filed: April 17, 2023
    Date of Patent: March 5, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kihyun Pyun, Heesook Park
  • Patent number: 11915652
    Abstract: A display includes a plurality of pixels in a non-quadrangular display area and a plurality of first driving circuits and a plurality of second driving circuits in a peripheral area of the display area. Each of the pixels is connected to a first signal line in a first direction and a second signal line in a second direction crossing the first direction. Each of the first driving circuits outputs a first signal to the first signal line of a corresponding one of the pixels. Each of the second driving circuits outputs a second signal to the second signal line of a corresponding one of the pixels. The number of second driving circuits between neighboring first driving circuits is different depending on a position in the peripheral area.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: February 27, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung-Kyu Lee, Kwang-Min Kim, Byoung Sun Kim
  • Patent number: 11907446
    Abstract: An electronic device with a touch-sensitive display displays an electronic calendar and detects a hand-drawn input on the touch-sensitive display. The hand-drawn input extends over a vertical portion, less than all, of an area corresponding to a first day in the calendar. In response to detecting the hand-drawn input, the device displays, over the vertical portion of the first day, one or more graphics that correspond to the hand-drawn input. While displaying the graphics, the device detects an input that corresponds to a request to create an event in the electronic calendar. In response, the device creates, in the first day in the electronic calendar, an event with a start time and an end time, wherein the start time and the end time of the event are in accordance with the first day that the hand drawn input extends over.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: February 20, 2024
    Assignee: APPLE INC.
    Inventors: Jeffrey Traer Bernstein, Linda L. Dong, Mark K. Hauenstein, Julian Missig
  • Patent number: 11900863
    Abstract: A display panel and a display device, including a substrate, a circuit layer located at a side of the substrate, and a top light-shielding layer configured to receive a voltage signal. The circuit layer includes a light-emitting shift circuit, including a first output module and a control module. The first output module is electrically connected to a first node, a first fixed potential signal line, and a light-emitting control signal line and is configured to, in response to a voltage of the first node, transmit a light-emitting enable voltage provided by the first fixed-potential signal line to the light-emitting control signal line. The control module is connected to the first node and includes a control transistor. The top light-shielding layer is located at a side of the control transistor. In a direction perpendicular to the substrate, the top light-shielding layer overlaps with a channel of the control transistor.
    Type: Grant
    Filed: September 6, 2022
    Date of Patent: February 13, 2024
    Assignee: Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Mengjia He, Yana Gao, Zhi Liu, Yuying Cai, Xingyao Zhou
  • Patent number: 11899833
    Abstract: To interact with and manipulate a virtual object associated with an AR experience displayed on the screen of a user device (e.g., a smartphone), the user must first learn or discover the particular gestures that correspond with a given function, but such gestures may not always be intuitive. The user may find it difficult or bothersome to learn/remember the specific gesture(s) needed to achieve a specific result. Moreover, there are only a limited number of gestures that can be performed using the screen of the device, often leading to gestural conflict. In some embodiments, a dual-interface AR system may be implemented to provide an AR experience for a user. The dual-interface AR system utilizes two user interfaces and distributes the input gestures between them, allowing the user to dynamically switch between the two and to use the interface that may be most intuitive to the user.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: February 13, 2024
    Inventor: Brennan Letkeman
  • Patent number: 11893169
    Abstract: A stylus includes an elongated housing, a tip extending from a first end of the elongated housing and a tri-axial force sensor mounted on a second end. A first wireless transmitter transmits a signal via the tip based on which the tip interacts with a digitizer sensor of a touch screen. The tri-axial force sensor senses contact force applied by a user pressing against the tri-axial sensor. A second wireless transmitter transmits output sensed by the tri-axial force sensor. The stylus further includes a controller that controls transmission of the first wireless transmitter and the second wireless transmitter.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: February 6, 2024
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ron Kaplan, Timothy A. Jakoboski
  • Patent number: 11893925
    Abstract: An electronic device may include a display panel. When content of an image frame is expected to consume relatively higher amounts of power, a controller of the electronic device may operate a switch to change a power supply of the display panel to be a power management integrated circuit of the electronic device. However, when content of an image frame is expected to consume relatively less amounts of power, the controller may operate the switch to change the power supply of the display panel to be a power supply of an electronic display, such as a power supply used to power driver circuitry of the electronic display.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: February 6, 2024
    Assignee: Apple Inc.
    Inventors: Peter F Holland, Christopher P Tann, Ramana V Rachakonda
  • Patent number: 11881144
    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: November 14, 2022
    Date of Patent: January 23, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jong Woong Park
  • Patent number: 11881146
    Abstract: A backlight module and display device, related to the display field. The backlight module includes a plurality of light-emitting elements and a controller, where the plurality of light-emitting elements serve as light sources for a plurality of sub-pixels respectively; and the controller is configured to control a brightness of each of the plurality of light-emitting elements. When the backlight module is in operation, if an i-th data line does not need to charge one of a plurality of sub-pixels connected to the i-th data line, the controller increases the brightness of the light-emitting element corresponding to a next sub-pixel when the next sub-pixel emits light. In this way, each sub-pixel can have an actual gray scale that reaches a target gray scale thereof, so that the uniformity of brightness of the display panel is improved.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: January 23, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Hongyan Chang, Wei Li
  • Patent number: 11881135
    Abstract: A method can be applied to a terminal provided with a light sensor to determine a screen light intensity value. The method can include: obtaining a screen light intensity detection value detected by the light sensor, and obtaining a current environment temperature when the light sensor detects the screen light intensity detection value; determining a light intensity calibration coefficient corresponding to a value of the current environment temperature based on a corresponding relationship between a temperature and the light intensity calibration coefficient; and determining the screen light intensity value of the terminal based on the determined light intensity calibration coefficient and the screen light intensity detection value.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: January 23, 2024
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Chaoxi Chen, Changyu Sun
  • Patent number: 11881160
    Abstract: A display device includes: a pixel component including pixels; a timing controller configured to calculate a load variation between previous input grayscale values corresponding to a previous frame and current input grayscale values corresponding to a current frame; a current sensor configured to sense a current flowing through the pixels during the current frame and generate a global current value for the sensed current, store time points at which the global current value becomes equal to preset threshold current values, respectively, and generate a global current variation rate corresponding to a section between the stored time points of the current frame; and a scale factor provider configured to control a scale factor in a period of the current frame in the case where the load variation is equal to or more than a reference load variation.
    Type: Grant
    Filed: February 8, 2023
    Date of Patent: January 23, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Sik Yoon, Jong Woon Kim, Won Jin Seo, Ki Hyun Sung, Ye Seul Lee, Dae Ho Hwang
  • Patent number: 11869418
    Abstract: A micro light emitting diode display panel including multiple pixel structures is provided. Each of the pixel structures includes at least one sub-pixel, which includes a first micro-light-emitting chip with a first light-emitting area and a second micro-light-emitting chip with a second light-emitting area smaller than the first light-emitting area. The first micro-light-emitting chip emits light corresponding to a first luminance interval according to a first operating current interval. The second micro light-emitting chip emits light corresponding to a second luminance interval according to a second operating current interval. A gray-scale value of the second luminance interval is lower than a gray-scale value of the first luminance interval. The first micro-light-emitting chip and the second micro light-emitting chip have the same light-emitting color. The second micro-light-emitting chip has a smaller slope of a tangent line to a luminance versus current curve than the first micro-light-emitting chip.
    Type: Grant
    Filed: October 30, 2022
    Date of Patent: January 9, 2024
    Assignee: PlayNitride Display Co., Ltd.
    Inventors: Shiang-Ning Yang, Yung-Chi Chu, Chang-Rong Lin, Yu-Ya Peng
  • Patent number: 11869401
    Abstract: A display device may include a display panel including a plurality of pixels, a data compensator configured to calculate compensation grayscale data for a measuring grayscale based on capturing luminance data including luminances of the pixels corresponding to one of capturing grayscales included in a plurality of grayscales, measuring luminance data including luminances of a plurality of areas of the display panel corresponding to the measuring grayscale other than the capturing grayscales among the grayscales, and input grayscale data for the measuring grayscale, a timing controller configured to generate output grayscale data based on the input grayscale data and the compensation grayscale data, and a data driver configured to generate a data voltage based on the output grayscale data, and provide the data voltage to the display panel.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: January 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventor: Seokha Hong
  • Patent number: 11862118
    Abstract: A display data processing device performs color adjustment on gradation values of pixels of a frame image of an input video signal and outputs the adjusted gradation values to a display device. The device includes a first gamma correction unit configured to set the gradation value as the first input gradation value and to convert the first input gradation value into the first corrected gradation value. The device includes a video gain correction unit configured to perform color adjustment on the first corrected gradation value according to video gain correction and to output the result as a video gain corrected gradation value. The device includes a second gamma correction unit configured to set the video gain corrected gradation value as the second input gradation value and to convert the second input gradation value into the second corrected gradation value.
    Type: Grant
    Filed: December 23, 2022
    Date of Patent: January 2, 2024
    Assignee: Sharp NEC Display Solutions, Ltd.
    Inventor: Katsuyuki Matsui