Patents Examined by Gene W Lee
  • Patent number: 11404004
    Abstract: A pixel circuit for an active matrix organic light emitting diode (AMOLED) and other active matrix displays is disclosed. The pixel circuit is programmed by the voltage supplied through a data line. An electrical current through a light emitting device for a known LED voltage and a pixel current for a pixel programed with a known data signal can be measured by a readout circuit through the data line. A 7T1C implementation enables to pre-charge the drive transistor to a reference voltage in each drive cycle, and to pre-set the light emitting device to a reference voltage prior to emission in each cycle.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: August 2, 2022
    Assignee: Ignis Innovation Inc.
    Inventors: Arash Moradi, Jafar Talebzadeh, Junhu He, Hongxin Liu, Shuenn-Jiun Tang
  • Patent number: 11398534
    Abstract: A flexible display apparatus includes a flexible substrate including a display area and a bending area outside the display area, the bending area to be bent around a bending axis; an inorganic insulating layer on the flexible substrate; a cut unit in the inorganic insulating layer in the bending area; a stress relaxation layer filling the cut unit and extending into the display area; a wiring part on the stress relaxation layer in the bending area; a planarization layer covering the wiring part and on the stress relaxation layer; and a display on the planarization layer in the display area and electrically connected to the wiring part.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: July 26, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dohyun Kwon, Minjung Lee, Jaeneung Kim, Mi Jang, Haseok Jeon, Changyong Jung
  • Patent number: 11393407
    Abstract: An electronic device includes a first source group and a second source group, each of which includes a plurality of source channels, and a gamma block that receives first to 2i-th initial voltages (i being an integer of 1 or more), outputs first to 2i-th intermediate voltages by amplifying the first to i-th initial voltages, and outputs first to i-th gamma voltages to the first source group by buffering the first to 2i-th intermediate voltages, and a first buffer block that receives the first to 2i-th intermediate voltages from the gamma block and buffers the first to 2i-th intermediate voltages so as to be output to the second source group, and the gamma block may include a first resistor string including a plurality of resistors connected between nodes from which the first to i-th gamma voltages are output.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: July 19, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-Suk Kim, Jungmoon Kim, Woo-Nyoung Lee
  • Patent number: 11386832
    Abstract: A tiled display device includes a plurality of display panels coupled to each other, where each of the plurality of display panels includes an edge region adjacent to a boundary line between the plurality of display panels, and a panel driver which multiplies input gray levels of input image data for the plurality of display panels by an adaptive gain, generates boundary compensated image data by adding boundary compensation gray levels to the input gray levels multiplied by the adaptive gain for the edge region, and drives the plurality of display panels based on the boundary compensated image data. The adaptive gain is gradually decreased over a plurality of frame periods in a case where a sum of each of the input gray levels for the edge region and a corresponding one of the boundary compensation gray levels exceeds a maximum gray level.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: July 12, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyunseuk Yoo, Bonghyun You, Kyung-Woo Kim, Seokha Hong
  • Patent number: 11372513
    Abstract: A display apparatus includes a display device capable of changing at least one of a plurality of parameters including a luminescence intensity, a color gamut, and an electro optical transfer function (EOTF); and at least one processor or circuit configured to function as a display control unit configured to control the display device to display a plurality of images and a background image displayed around each of the plurality of images such that an appearance of the background image is visually identical between the plurality of images when the display device is caused to display the plurality of images.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: June 28, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takahiro Abe
  • Patent number: 11373590
    Abstract: Provided are a display panel, a driving method thereof, and a display device. The display panel includes a pixel circuit and a light-emitting element; where the pixel circuit includes a drive module, a data writing module, a light emission control module, and a bias module; where the drive module is configured to provide the light-emitting element with a drive current and includes a drive transistor; the data writing module is connected to a source of the drive transistor and configured to selectively provide the drive module with a data signal; the light emission control module is configured to selectively allow the light-emitting element to enter a light-emitting stage; the bias module is connected between a drain of the drive transistor and the light emission control signal line.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: June 28, 2022
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Yong Yuan, Jieliang Li
  • Patent number: 11373572
    Abstract: A power management circuit includes a boost converter which generates a boosted voltage at a boosting node by boosting an input voltage by using a reference boosting voltage, a voltage regulator coupled to the boosting node and an output node, a bypass transistor coupled between the boosting node and the output node, and a regulator control block which compares the input voltage with a reference input voltage. When the input voltage is higher than or equal to the reference input voltage, the regulator control block increases the reference boosting voltage to increase the boosted voltage, enables the voltage regulator to generate a regulated voltage by regulating the increased boosted voltage, turns off the bypass transistor such that the regulated voltage is output as a pixel power supply voltage at the output node, and maintains an enable state of the voltage regulator for a minimum enable time.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: June 28, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Yoon Young Lee
  • Patent number: 11360317
    Abstract: A wearable display system includes a housing, a display module positioned within the housing and including a lens and a display panel, and a seal extending between the housing and the display module. The seal is configured to allow relative movement between the lens and the display panel to adjust focus of the display panel. In one aspect, the seal includes first and second segments with generally linear configurations and a third segment with an arcuate configuration that is positioned between the first and second segments. In another aspect, the seal includes a first portion with an arcuate configuration and a second portion with a linear configuration and a bellows portion. In another aspect, the seal includes corrugations to facilitate controlled deformation of the seal during relative movement of the display module.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: June 14, 2022
    Assignee: Apple Inc.
    Inventors: Ivan S. Maric, Onur I. Ilkorur, Jia Tao, Kuldeep P. Lonkar, Stephen E. Dey, Phil M. Hobson, Jeremy C. Franklin
  • Patent number: 11355055
    Abstract: A display apparatus is provided. The display apparatus includes: display modules arranged to form a screen; and an image processing device configured to output a signal to the display device to control display of an image on the screen. One of the display modules includes: a driver configured to output a driving signal to control LEDs to emit light, a storage configured to store an image-quality set value, and a processor configured to update the image-quality set value based on image-quality characteristic information of a different display module among the plurality of display modules, and control the driver to adjust the driving signal based on the image-quality set value.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: June 7, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Junggi Kim
  • Patent number: 11334148
    Abstract: Methods and systems for relative inertial measurement may include a user device configured to couple with a user's body and measure motion of the user's body or a part of the user's body while the user rides in a vehicle. A second inertial measurement device may be configured to move with the vehicle but to not move with movements of the user's body within the vehicle. One or more processors may receive inertial measurements from the first and second inertial measurement devices and determine movement of the user's body or the part of the user's body relative to the vehicle by comparing the received inertial measurements.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: May 17, 2022
    Assignee: Apple Inc.
    Inventor: Fletcher R. Rothkopf
  • Patent number: 11328650
    Abstract: A driver, a display device, and an optical compensation method thereof are provided. The display panel includes sub-pixels arranged in an array. The method includes: receiving an initial gray level of each sub-pixel of a picture to be displayed; determining whether each sub-pixel satisfies a preset determination condition based on the initial gray level of each sub-pixel; if an absolute value of a difference between the initial gray levels of two sub-pixels electrically connected to a same data line and located in two adjacent rows is greater than a preset threshold, it is determined that a sub-pixel in a next row satisfies the preset determination condition; and, in response to determining that a sub-pixel satisfies the preset determination condition, acquiring a first compensation parameter of the sub-pixel, and compensating the initial gray level of the sub-pixel based on the acquired first compensation parameter.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: May 10, 2022
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yan Yang, Chinghua Hung, Wenchieh Huang, Rui Liu, Wei Sun, Ming Chen
  • Patent number: 11315480
    Abstract: Provided are a pixel driving circuit, a driving method thereof, and display panel. The pixel driving circuit includes a current control circuit and a time control circuit, wherein the current control circuit is configured to receive a display data signal and control a magnitude of a driving current flowing through the current control circuit according to the display data signal; the time control circuit is configured to receive the driving current, and receive a time data signal, a first light-emitting control signal and a second light-emitting control signal, and control a flowing time period of the driving current according to the time data signal, the first light-emitting control signal and the second light-emitting control signal.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: April 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Dongni Liu
  • Patent number: 11308856
    Abstract: An electronic device is disclosed. The disclosed electronic device comprises a display including a first display module and a second display module, a processor, and a memory, wherein the memory may store instructions that cause the processor to store first data obtained from the first display module and second display data obtained from the second display module, accumulate the first data over a predetermined period to obtain an average value of the first data, accumulate the second data over a predetermined period to obtain an average value of the second data, and control the display to display guide information requesting the positions of the first display module and the second display module to change using the average value of the first data and the average value of the second data.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: April 19, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwansik Yang, Jaehong Kim, Sangkyung Lee, Byeongcheol Hyeon
  • Patent number: 11295691
    Abstract: A current limiting circuit, comprising a switching circuit and a voltage stabilizing circuit. The switching circuit is separately connected to a voltage input terminal VIN and a voltage output terminal VOUT, and used for transmitting an input voltage to the voltage output terminal VOUT from the voltage input terminal VIN; and the voltage stabilizing circuit is separately connected to the switching circuit, the voltage input terminal VIN, and the voltage output terminal VOUT, used for controlling an output current to reduce together with the switching circuit when the output current of the voltage output terminal VOUT is increased and the output current is less than a preset output current, and further used for controlling the output current to be zero together with the switching circuit when the output current of the voltage output terminal VOUT is greater than or equal to the preset output current.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 5, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Liang Zhang
  • Patent number: 11281370
    Abstract: Methods and apparatuses are provided for detecting a gesture at an electronic device. The gesture is received through an input module of the electronic device. A direction combination corresponding to the gesture is determined. The direction combination includes a plurality of directions. Information regarding the direction combination is compared with information regarding at least one direction combination, which is stored in a memory of the electronic device. A state of the electronic device is changed from a first state to a second state, using at least one processor of the electronic device, according to a result of comparing the information regarding the direction combination with the information regarding the at least one direction combination.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: March 22, 2022
    Inventors: Jae Wook Lee, An Ki Cho, Jun Hyung Cho
  • Patent number: 11263961
    Abstract: The present disclosure relates to a driver for a display device. A driver for a display device according to an embodiment is characterized in generating a voltage supplied as a bias voltage of a source buffer of a data driver in conjunction with a voltage supplied to a display panel. Therefore, the driver for the display device according to the present disclosure has an advantage that the headroom margin of the source buffer can be secured and power consumption of the driver is low at the same time, even when an image data pattern causing a variation in the voltage is input to the display device.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: March 1, 2022
    Assignee: LG Display Co., Ltd.
    Inventor: Jeongho Kang
  • Patent number: 11256342
    Abstract: An electronic device tracks, for a user performing a target acquisition movement within a 3D space, movement parameters of a plurality of input devices of the user. The electronic device predicts, for the user, a region of interest within the 3D space, using a regression model, based on the movement parameters. The region of interest includes a plurality of targets in close proximity. The electronic device predicts an endpoint of the target acquisition movement, within the region of interest, using a pointer facilitation technique. In some embodiments, the plurality of input devices includes an eye tracking input device, each input device corresponds to a predefined input device type, and the movement parameters include gaze data from the eye tracking input device. In some embodiments, input devices includes an eye tracking input device, a head-mounted display, and a hand-held controller, and the user's eye, hand, and head movements are coordinated.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: February 22, 2022
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Rorik Henrikson, Tovi Samuel Grossman, Sean Edwin Trowbridge, Hrvoje Benko, Daniel John Wigdor, Marcello Giordano, Michael Glueck, Tanya Renee Jonker, Aakar Gupta, Stephanie Santosa, Carolina Brum Medeiros, Daniel Clarke
  • Patent number: 11250764
    Abstract: The present disclosure provides a mura compensation device, display panel, display device, and mura compensation method, which belongs to the field of panel technology. The mura compensation device includes a first flexible circuit board and a de-mura circuit, including a storage unit for storing mura compensation data, wherein the de-mura circuit is provided in the first flexible circuit board.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: February 15, 2022
    Assignees: Hefei BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jianwei Sun, Liugang Zhou, Yizhan Han, Tao Li, Yulong Xiong
  • Patent number: 11250754
    Abstract: A driving circuit includes a S stage register, a first connect line, a (S+A) stage register and a second connect line. The S stage register receives a 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 a 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: July 29, 2020
    Date of Patent: February 15, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Wei-Li Lin, Che-Wei Tung
  • Patent number: 11244637
    Abstract: The present disclosure relates to a backlight control method and apparatus for a backlight module, a display device and a computer readable storage medium. The backlight module includes a plurality of backlight partitions. The backlight control method includes, for each backlight partition: determining a first brightness change threshold according to an output backlight brightness corresponding to a previous frame image; and determining, according to a difference between an initial backlight brightness of a current frame image and the output backlight brightness corresponding to the previous frame image and the first brightness change threshold, the output backlight brightness corresponding to the current frame image.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: February 8, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mingyang Yan, Zhifu Li, Jinghua Miao, Yukun Sun, Wenyu Li, Lili Chen, Hao Zhang, Chenxi Zhao