Patents Examined by Scott D Au
  • Patent number: 11810504
    Abstract: The present disclosure provides display substrate and display device, and belongs to the field of display technology. The display substrate of the disclosure has mounting region, first display region adjacent to mounting region, and second display region surrounding first display region and/or mounting region. The display substrate comprises: substrate; driving circuit layer on substrate and comprising pixel driving circuits in first display region and second display region, and arrangement density of pixel driving circuits in second display region is less than that of pixel driving circuits in second display region; and light emitting devices in mounting region, first display region, and second display region, first electrode of each light emitting device being electrically coupled to a corresponding pixel driving circuit, and pixel driving circuit electrically coupled to first electrode of light emitting device in the mounting region being located in first display region.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: November 7, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yudiao Cheng, Benlian Wang, Meng Li, Weiyun Huang, Yao Huang
  • Patent number: 11741899
    Abstract: A display panel, a display driving method and a display pixel driving circuit therefor are provided. In the display driving method, the light emitting signal includes multiple pulse signals, and the variation trend of the pulse-off durations of the pulse signals is consistent with the variation trend of the light emitting brightness of the light emitting element during the light emitting period, that is, the pulse-off durations decreases sequentially with the decrease of the light emitting brightness of the light emitting element, or sequentially increases with the increase of the light emitting brightness of the light emitting element. Therefore, the flicker problem in the display panel when emitting light can be solved, and improving the image display quality.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: August 29, 2023
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventor: Jieliang Li
  • Patent number: 11735084
    Abstract: A display device includes: a substrate including a display area and a non-display area; an external common voltage line disposed in the non-display area; a plurality of pixels and a common voltage line disposed in the display area; and a driving voltage line connected to each of the plurality of pixels, wherein a subset of the plurality of pixels overlaps the common voltage line in the display area in a plan view, and the external common voltage line and the common voltage line are connected to each other.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: August 22, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Hoon Kim, Won Kyu Kwak, Han-Sung Bae
  • Patent number: 11737323
    Abstract: A display device includes a substrate including a first area, a display area surrounding the first area, and a peripheral area surrounding the display area and including a bent area; a display unit including pixels; a driving circuit in the peripheral area; and a fan-out unit in the peripheral area and including a first wiring portion and a second wiring portion apart from each other in the bent area. The first wiring portion includes first wirings. Each of the first wirings includes a first portion extending in a first direction between the display unit and the bent area, and a second portion extending in a second direction. A width of the first portion is greater than a width of the second portion.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: August 22, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yuhyun Cho, Sora Kwon, Oukjae Lee, Ilryong Cho
  • Patent number: 11726573
    Abstract: A method for providing haptic feedback includes sensing a user's input through a display panel, determining haptic feedback corresponding to the input, and controlling a voltage applied to each of the plurality of actuators to provide the determined haptic feedback to a location where the input is sensed, wherein the controlling of the voltage applied to each of the plurality of actuators includes adjusting the voltage applied to each of the plurality of actuators to reduce the magnitude of radiation noise of the panel due to excitation of the plurality of actuators and to uniformize the magnitude of the noise for each location of the panel.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: August 15, 2023
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: No Cheol Park, Whee Jae Kim, Dong Joon Kim, Sang Won Park
  • Patent number: 11714550
    Abstract: An apparatus for delivering alternate user input between an alternate input device and an output device, the output device configured to receive input from a conventional input device, the output device not configured to receive input from the alternate input device, the apparatus including an input interconversion processor that receives the alternate user input from the alternate input device, a processing pipeline that converts the alternate user input to a conventional user input of a type normally received by the output device from the conventional input device, and an output port that transmits the conventional user input.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: August 1, 2023
    Assignee: Bansen Labs
    Inventors: John Dalton Banks, Noam Eisen
  • Patent number: 11714489
    Abstract: Electromechanical polymer (EMP) actuators are used to create haptic effects on a user interface deface, such as a keyboard. The keys of the keyboard may be embossed in a top layer to provide better key definition and to house the EMP actuator. Specifically, an EMP actuator is housed inside an embossed graphic layer that covers a key of the keyboard. Such a keyboard has a significant user interface value. For example, the embossed key provides the tactile effect of the presence of a key with edges, while allowing for the localized control of haptic vibrations. For such applications, an EMP transducer provides high strains, vibrations or both under control of an electric field. Furthermore, the EMP transducer can generate strong vibrations. When the frequency of the vibrations falls within the acoustic range, the EMP transducer can generate audible sound, thereby functioning as an audio speaker.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: August 1, 2023
    Assignee: Kemet Electronics Corporation
    Inventors: Brian C Zellers, Li Jiang, Christophe Ramstein, Stephen Davis
  • Patent number: 11705063
    Abstract: A display device includes a first transistor including a first channel region, a first gate electrode overlapping the first channel region, and a first electrode connected to a node receiving a driving voltage, a second transistor electrically connected to the first electrode of the first transistor, the second transistor including a second channel region and a second gate electrode overlapping the first channel region and receiving a scan signal, a light emitting element electrically connected to a second electrode of the first transistor, a first conductive line overlapping the first gate electrode with the first channel region in between and receiving a variable voltage different from the driving voltage, and a second conductive line overlapping the second gate electrode with the second channel region in between and receiving the scan signal.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: July 18, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myounggeun Cha, Sanggun Choi, Hyena Kwak, Jiyeong Shin, Yongsu Lee, Kiseok Choi
  • Patent number: 11684950
    Abstract: This application relates to methods and apparatus for driving a transducer with switching drivers. A driver circuit has first and second switching drivers for driving the transducer in a bridge-tied-load configuration, each of the switching drivers having a respective output stage for controllably switching the respective driver output node between high and low switching voltages with a controlled duty cycle. Each of switching drivers is operable in a plurality of different driver modes, wherein the switching voltages are different in said different driver modes. A controller controls the driver mode of operation and the duty cycle of the switching drivers based on the input signal. The controller is configured to control the duty cycles of the first and second switching drivers within defined minimum and maximum limits of duty cycles; and to transition between driver modes of operation when the duty cycle of one of the switching drivers reaches a duty cycle limit.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: June 27, 2023
    Assignee: Cirrus Logic, Inc.
    Inventors: Axel Thomsen, Eric J. King, Anthony S. Doy, Thomas H. Hoff, John L. Melanson
  • Patent number: 11682335
    Abstract: A display device includes a display panel, a memory, a dithering processor, and a panel driver. The display panel includes a display surface, and the memory stores dither patterns with respect to at least one spot area included in the display surface. The dithering processor selects a dither pattern among the dither patterns in a predetermined time unit and outputs a compensation image signal corresponding to the dither pattern. The panel driver outputs a data signal corresponding to the spot area based on the compensation image signal. Each of the dither patterns includes a first grayscale area having a first grayscale value higher than a first target grayscale value of the spot area and a second grayscale area having a second grayscale value lower than the first target grayscale value.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: June 20, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kuk-Hwan Ahn, Youngwook Yoo, Jungyu Lee, Hyunjun Lim, Byung Ki Chun
  • Patent number: 11676543
    Abstract: A display device includes a display panel, a controller, and a data driver. The display panel includes a plurality of pixels. The controller detects a logo region including a logo in image data, determines a correction gain based on a first average gray level of the logo region and a second average gray level of a peripheral region adjacent to the logo region, and generates corrected image data by correcting the image data based on the correction gain. The data driver provides data signals to the plurality of pixels based on the corrected image data.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: June 13, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wonwoo Jang, Seungho Park, Kyoungho Lim
  • Patent number: 11670242
    Abstract: An electronic device includes display driver and a sensor driver. The display driver drives a display layer and provide a grayscale voltage to a data lines. The sensor driver is synchronized with the display driver to drive a sensor layer, and operates in a first sensing mode and a second sensing mode. In the first sensing mode, the sensor driver senses an input through the sensor layer based on a first timing. In the second sensing mode, the sensor driver senses an input through the sensor layer based on a second timing different from the first timing.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: June 6, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun-Wook Cho, Min-Hong Kim, Taejoon Kim, Jungmok Park
  • Patent number: 11656683
    Abstract: To achieve simplification in configuration and reduction in cost of a tactile reproduction system that reproduces tactile information. The signal generation device according to the present technology includes a signal generation unit that generates a tactile signal on the basis of a detection value of a motion detection unit that is provided in an imaging device and detects motion of the imaging device. This eliminates the need to provide a separate motion detection unit other than the motion detection unit provided in the imaging device in order to realize a system that reproduces tactile information together with visual information.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: May 23, 2023
    Assignee: SONY CORPORATION
    Inventors: Shuichiro Nishigori, Shiro Suzuki, Hirofumi Takeda, Jun Matsumoto
  • Patent number: 11650666
    Abstract: A vibrator, a manufacturing method thereof, a haptical sensation reproduction apparatus and a vibration waveform detection method, and relates to the technical field of display. The vibrator comprises a substrate, and a piezoelectric component and a light-emitting component located on the substrate, wherein the piezoelectric component comprises an inverse piezoelectric unit, the light-emitting component comprises a direct piezoelectric unit and a light-emitting unit, and the inverse piezoelectric unit is in contact and connected with the direct piezoelectric unit. The vibrator of this solution may be disposed in a touch-control reproduction screen, the inverse piezoelectric unit in the vibrator is driven to deform to generate vibrations, and the direct piezoelectric unit in contact and connection therewith is driven to deform to generate a current to drive the light-emitting unit to emit light.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: May 16, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Yuju Chen
  • Patent number: 11645982
    Abstract: For a display device having a plurality of subpixels disposed in an active area of a display panel, a method for processing a compensation data of the display device may include reconfiguring an order of unit patches having the compensation data so that the unit patches having similar reference values are positioned adjacent to each other when the compensation data are compressed. The disclosed method can improve the compression process efficiency where a compression loss can be reduced, and an effect of an image quality improvement using the compensation data can be enhanced.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: May 9, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jihwan Kim, Sunwoo Kwun
  • Patent number: 11636813
    Abstract: A display device includes a display panel including a plurality of pixels, an image data corrector configured to generate a corrected image data by adjusting an image data and a data driver providing data signals to the plurality of pixels based on the corrected image data. The image data corrector divides the display panel into a plurality of unit areas, and adjust the image data for a unit area among the plurality of unit areas by using a full image load for the entire display panel, a first image load for the unit area, and a second image load for peripheral unit areas surrounding the unit area among the plurality of unit areas.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: April 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jaehoon Lee, Deokho Kang, Jong Wook Kim, Youngwoon Choi
  • Patent number: 11630524
    Abstract: A wireless input output apparatus is disclosed. The wireless input output apparatus includes a first housing mechanically coupled to the wireless input output apparatus panel. The first housing is configured to house a plurality of input keys. Each of the plurality of input keys corresponds to one of a character, a letter, a number, a function, and a command. The wireless input output apparatus also includes a second housing mechanically coupled adjacent to the first housing and over the wireless input output apparatus panel. The second housing is configured to house a capacitive touch screen display for rendering visual information. The wireless input output apparatus may be tethered to computer, phone, laptop, tablet, and the like without interrupting workflow when receiving calls, texts, “DMs”, emails and the like.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: April 18, 2023
    Assignee: Majestic Devices
    Inventor: Gregory A Comito, II
  • Patent number: 11609427
    Abstract: A dual-mode augmented/virtual reality near-eye wearable display for use with a curved lens element. The lenses are provided with one or more transparent waveguide elements that are disposed within the thickness of the lenses. The waveguide elements are configured to couple display images directly from image sources such as emissive display imagers to an exit aperture or plurality of exit aperture sub-regions within a viewer's field of view. In a preferred embodiment, a plurality of image sources are disposed on the peripheral surface of the lenses whereby each image source has a dedicated input image aperture and exit aperture sub-region that are each “piecewise flat” and have matched areas and angles of divergence whereby a viewer is presented with the output of the plurality of image source images within the viewer's field of view.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: March 21, 2023
    Assignee: Ostendo Technologies, Inc.
    Inventors: Hussein S. El-Ghoroury, Chih-Li Chuang, Biagio Agostinelli
  • Patent number: 11599191
    Abstract: According to a computer-implemented method for the automatic localization of a structure, an individual image which maps an object with the structure is displayed on a display surface. A gaze movement of a user is captured by a gaze capture system and, on the basis thereof, a gaze capture signal is generated. By a computer unit, dependent upon the gaze capture signal, at least one image point of the individual image is identified, which at least partially maps the structure.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: March 7, 2023
    Assignee: Siemens Healthcare GmbH
    Inventors: Martin Berger, Anton Nekovar
  • Patent number: 11594185
    Abstract: A display device includes a driving voltage line and a plurality of data lines extending in a first direction, a first driving transistor electrically connected to the driving voltage line, a first switching transistor electrically connected to the first driving transistor and including a first switching semiconductor layer extending in a second direction crossing the first direction and a first switching gate electrode overlapping a channel region of the first switching semiconductor layer, and a first storage capacitor electrically connected to the first driving transistor and the first switching transistor, where the first switching semiconductor layer is electrically connected to a first data line, the first switching semiconductor layer crosses a second data line between the channel region and the first data line, and a crossing region of an edge of the first switching semiconductor layer and an edge of the second data line overlaps a first protection layer.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: February 28, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaemin Lee, Sooin You, Youngsun Jang, Hyunggi Jung, Soonchang Yeon, Hyungtae Jung