Patents Examined by Jennifer T. Nguyen
  • Display device
    Patent number: 11462186
    Abstract: To reduce power consumption of a display device with the use of a simple structure and a simple operation. The display device includes an input device. Input of an image signal to a driver circuit is controlled in accordance with an image operation signal output from the input device. Specifically, input of image signals at the time when the input device is not operated is less frequent than that at the time when the input device is operated. Accordingly, display degradation (deterioration of display quality) caused when the display device is used can be prevented and power consumed when the display device is not used can be reduced.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: October 4, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kenichi Wakimoto, Masahiko Hayakawa
  • Electronic control device
    Patent number: 11449091
    Abstract: There is provided a technology capable of synchronizing a plurality of timers with a simple circuit configuration in an electronic control unit that controls a vehicle. An electronic control unit according to the present invention concatenates a second timer value as the most significant bit of a first timer value reset by a synchronization signal, and counts up the second timer value by the synchronization signal.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: September 20, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Teppei Hirotsu, Hiroshi Iwasawa, Atsushi Arata
  • Touch controller and pen input system
    Patent number: 11449173
    Abstract: A touch controller includes a processor and a memory coupled to the processor. The memory stores instructions that, when executed by the processor, cause the touch controller to: operate in an uplink power saving mode in which an uplink signal is transmitted with reduced power in response to reception of a suspend order from a host computer, and operate in a normal mode in which the uplink signal is transmitted with normal power in response to detection of a predetermined trigger during operation in the uplink power saving mode.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: September 20, 2022
    Assignee: Wacom Co., Ltd.
    Inventor: Yoshio Nomura
  • Display device
    Patent number: 11450277
    Abstract: A display device includes: a display panel in which a non-display region and a display region surrounding the non-display region are defined, wherein the display panel includes: a base layer comprising a first region in which a hole is defined corresponding to the non-display region, a second region surrounding the first region, and a third region corresponding to the display region; and first signal line parts disposed on the second region and the third region, the first signal line parts arrayed spaced apart from each other in a first direction, and each of the first signal line parts includes: a first line; a second line spaced apart from the first line; and a first connection part configured to connect the first line and the second line.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: September 20, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-yong An, Jaewon Kim, Hyunae Park, Hyungjun Park, Seungwoo Sung, Young-soo Yoon, Ji-eun Lee, Yun-kyeong In, Donghyeon Jang, Junyoung Jo
  • Control method and control device
    Patent number: 11436988
    Abstract: A control method or the like is provided capable of suppressing a flicker phenomenon even if frame periods vary in length. The control method is for controlling an emission period and an extinction period of a frame period, which is a period in which one image continues to be displayed. When a signal indicating start of a frame period is detected, as the frame period, n subframe periods that configure the frame period, where n is an integer greater than or equal to 2, are sequentially started from the first subframe period, after a predetermined period of time has elapsed since the detection of the signal. All of the n subframe periods are controlled to have a substantially same length determined in advance and to have a substantially same ratio between the emission period and the extinction period, determined in advance, the ratio being referred to as a duty ratio.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: September 6, 2022
    Assignee: JOLED INC.
    Inventor: Hiroaki Ishii
  • Display device
    Patent number: 11437443
    Abstract: A display device includes a substrate having an active area and a non-active area where the non-active area includes a first and second routing areas; a transistor over the active area; a device insulating layer over the transistor; a pixel electrode over the device insulating layer and electrically connected to a source or drain electrode of the transistor via a contact hole in the device insulating layer; an emitting layer over the pixel electrode; a common electrode over the emitting layer; an encapsulation layer over the common electrode in the active area and the first routing area, and having an inclined surface in the first routing area; one or more dams at a boundary between the first and second routing areas and having a height higher than those of surroundings; and a side edge touch electrode in at least one of the first and second routing areas.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: September 6, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Yangsik Lee, Jungho Jo
  • Display device
    Patent number: 11437445
    Abstract: A display device includes: an electronic module; and an electronic panel including: a first area overlapping the electronic module; a second area surrounding at least a portion of the first area in a plan view; and an indicia disposed on the first area.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: September 6, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jongsoo Lee, Jong-Won Choo
  • System and method for compensating uniformity of brightness
    Patent number: 11430397
    Abstract: A system and a method for compensating uniformity of brightness are provided. The system includes an edge-type backlight assembly, a display panel, a brightness sensor, a compensating calculator, and a local dimming controller. The display panel is disposed above the edge-type backlight assembly. The display panel includes plural regions for local dimming. The brightness sensor is configured to measure whether the brightness distribution of the display panel is uniform. When the brightness distribution of the display panel is not uniform, the compensating calculator calculates a brightness compensation value corresponding to each of the regions of the display panel. The local dimming controller is configured to drive the edge-type backlight assembly according to the brightness compensation value corresponding to each of the regions of the display panel.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: August 30, 2022
    Assignee: TPK Universal Solutions Limited
    Inventors: Ming Chuan Lin, Hsuan Kuang Chen, Su Ming Lin, Chun Hui Tseng, Wen Hung Wang
  • Electro-optical device and electronic apparatus
    Patent number: 11423838
    Abstract: An electro-optical device includes one or more control lines that include a scanning line, a data line and a pixel circuit. The pixel circuit has a drive transistor, a write-in transistor with a gate which is electrically connected to the scanning line, a light-emitting element that emits light at a brightness that depends on the size of a current that is supplied through the drive transistor, and a control line which overlaps the gate of the drive transistor when viewed from a direction that is perpendicular to a surface of a substrate on which the pixel circuit is formed is included in the one or more control lines.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: August 23, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takashi Toya, Takehiko Kubota
  • Image sensor driving circuit including power switch and image sensor including the same
    Patent number: 11423851
    Abstract: A driver circuit of an image sensor is provided. The driver circuit includes a row decoder to decode an address of a target row of a pixel array and generate an operation directing signal corresponding to the target row; a digital logic circuit including: a target row logic circuit to generate a pixel control signal based on the operation directing signal; a power switch configured to connect a power supply voltage to the target row logic circuit during a first time and isolate the power supply voltage from the target row logic circuit during a second time, based on the operation directing signal; and an output circuit configured to output a default signal during the second time; and a row driver configured to drive the target row based on the pixel control signal during the first time and drive the target row based on the default signal during the second time.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: August 23, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyuik Cho, Jaejung Park
  • Display panel and display device
    Patent number: 11424298
    Abstract: A display panel and a display device are provided. The display panel includes an imaging layer, a pinhole light-shielding layer, a display array layer and a touch layer. The imaging layer, the display array layer and the touch layer are sequentially disposed; the pinhole light-shielding layer is between the imaging layer and the touch layer, and includes light-shielding regions and at least one hole-shaped light-transmitting region that is corresponding to the imaging layer; the display array layer is configured to emit light from a side away from the imaging layer; and the touch layer includes touch mesh patterns formed by conductive wires, and at least one of the touch mesh patterns includes a first mesh corresponding to the hole-shaped light-transmitting region and includes second meshes outside the first mesh, and a size of the first mesh is larger than sizes of the second meshes.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: August 23, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yuanyuan Li, Meizhu Zheng, Junjie Li
  • Infrared transparent backlight device
    Patent number: 11416071
    Abstract: A backlight device includes a first surface and a second surface that is opposite to the first surface. The backlight device is configured to emit light in a first optical band through the second surface toward a display panel of a head-mounted display (HMD). The display panel is configured to convert the light from the backlight device to image light. The backlight device is transparent to light in a second optical band that is different than the first optical band. An eye tracking system illuminates an eyebox with light in the second optical band. A camera assembly positioned adjacent to the first surface of the backlight device. The camera assembly is configured to capture images of the eye in the second optical band through the backlight device, the display panel. The eye tracking system determines eye tracking information based at least in part on the captured images.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: August 16, 2022
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Andrew John Ouderkirk, Jacques Gollier, Robin Sharma, Yusufu Njoni Bamaxam Sulai, Brian Wheelwright, Ying Geng, Alexander Sohn, Abbas Mehdi Kazmi
  • Method for measuring a colour space specific to an individual and method for correcting digital images depending on the colour space specific to the individual
    Patent number: 11408771
    Abstract: A method for constructing a colour space specific to an individual viewing a colour image on a display device, including at least the following steps: a first step of measuring an emitted spectral radiance; a second step of constructing a Euclidean colour space of the lights emitted by the display device; a third step of measuring, by computer, a luminance vector field perceived by the individual; a fourth step of constructing a model corresponding to the individual's perception of the colours.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: August 9, 2022
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE GRENOBLE ALPES
    Inventors: David Alleysson, David Meary
  • Display method and display device using the same
    Patent number: 11410592
    Abstract: A display method and a display device using the same is disclosed. In the display method, an image is received. The image has an indicative object and a display background that surrounds the indicative object. Then, the original color of the indicative object is changed into a first color and the image that has the indicative object with the first color is displayed based on the average hue of a part of the display background. The part of the display background surrounds the indicative object. The average hue corresponds to a second color. The first color and the second color are complementary colors.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: August 9, 2022
    Assignee: Novatek Microelectronics Corp
    Inventors: Hsin-Tso Chiang, Tsun-Hou Chou, Po-Hsiang Huang
  • Display apparatus and display action control method
    Patent number: 11402896
    Abstract: A display apparatus includes a display which performs digital display; a sensor which detects use of the display apparatus by a user; and at least one processor. The processor controls the display to set a digital display to be in a burn-in prevention state in a first time period. When the sensor detects use in a second time period including the first time period, the processor stops the burn-in prevention state and changes data regarding setting of the first time period.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: August 2, 2022
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Tadashi Kurihara
  • Display device
    Patent number: 11397550
    Abstract: A display device to be attached to a die, the display device including a display to rewrite and display die management information obtained in an information acquisition section to obtain the die management information for managing the die. The display uses electric power when display content is rewritten, and the display uses no electric power for keeping the display.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: July 26, 2022
    Assignee: MATSUI MFG. CO., LTD.
    Inventors: Satoru Tojyo, Hironobu Matsui
  • Display device
    Patent number: 11392230
    Abstract: A display device includes: a substrate including a plurality of pixel areas and a non-pixel area at least partially surrounding each of the pixel areas; an element layer disposed on the substrate; a pixel defining film disposed on the element layer, wherein the pixel defining film includes first openings and a second opening, wherein the first openings overlap the plurality of pixel areas, and the second opening overlaps the non-pixel area and extends along the plurality of pixel areas; a plurality of light emitting elements disposed in the first openings; a sealing layer disposed on the element layer to cover the light emitting elements and the pixel defining film; and an input sensing part overlapping the second opening and disposed on the sealing layer.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: July 19, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Minsu Lee, DeokHoi Kim, Sungin Ro, Yongsung Park, Soomin Lee, Chang Yong Lee, Soonmyung Hong
  • Display device and power management chip for the same
    Patent number: 11386824
    Abstract: A display device and a power management chip are provided. The power management chip includes a rising-edge trigger, detecting rising edges of a pulse signal; a first counter, configured to calculate the number of the rising edges; a falling-edge trigger, detecting falling edges of the pulse signal; a second counter, configured to calculate the number of the falling edges of the pulse signal; an adder, configured to sum up the number of the rising edges and the number of the falling edges of the pulse signal; and a digital-to-analog converter, electrically connected to the adder, configured to convert to a target voltage based on the sum obtained by the adder. In such a way, the poweron time of the power management chip is reduced.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: July 12, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Rui Ju
  • Storing baseline information in EEPROM
    Patent number: 11379078
    Abstract: Pre-stored no-touch or no-hover (no-event) sensor output values can initially be used when a sensor panel subsystem is first booted up to establish an initial baseline of sensor output values unaffected by fingers or other objects touching or hovering over the sensor panel during boot-up. This initial baseline can then be normalized so that each sensor generates the same output value for a given amount of touch or hover, providing a uniform response across the sensor panel and enabling subsequent touch or hover events to be more easily detected. After the initial normalization process is complete, the pre-stored baseline can be discarded in favor of a newly captured no-event baseline that may be more accurate than the pre-stored baseline due to temperature or other variations.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: July 5, 2022
    Assignee: Apple Inc.
    Inventors: Brian Richards Land, Wayne Carl Westerman, Steve Porter Hotelling
  • Flexible display panel and display apparatus
    Patent number: 11374065
    Abstract: A flexible display panel has a display area, a peripheral area surrounding the display area, and a bending area having at least one overlapping area with the peripheral area. The flexible display panel includes a plurality of conductive layers disposed in the display area, and at least one interdigital capacitor disposed in the at least one overlapping area. One of the at least one interdigital capacitor is disposed in a same layer with a same material as one of the plurality of conductive layers.
    Type: Grant
    Filed: December 25, 2019
    Date of Patent: June 28, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dong Li, Hongwei Tian, Chunyang Wang, Huijuan Zhang, Zheng Liu, Xiaolong Li, Meng Zhao, Mingche Hsieh