Patents Examined by Chanh D. Nguyen
  • Patent number: 11869397
    Abstract: An abnormality detection circuit includes: a plurality of voltage dividing circuits; a first selector configured to select and output one of a plurality of outputs of the plurality of voltage dividing circuits; a first comparator configured to compare an output of the first selector with a reference voltage; and a first detector configured to detect an abnormality based on an output of the first comparator, wherein the selection of the first selector is switched in synchronization with a vertical synchronization signal or a horizontal synchronization signal of a liquid crystal display device.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: January 9, 2024
    Assignee: Rohm Co., Ltd.
    Inventors: Akira Hashimoto, Takateru Yamamoto, Sukenori Ito, Yasunobu Inoue
  • Patent number: 11862083
    Abstract: An electronic device may have a display mounted in a housing. The display may have a pixel array that produces images. A display cover layer may overlap the pixel array. The display cover layer may have a planar central area surrounded by a peripheral edge area with a curved cross-sectional profile. From an on-axis viewing angle, an image on the pixel array is fully viewable through the planar central area and the peripheral edge area. From an off-axis viewing angle, the image is partly viewable through the peripheral edge area and not through the central area. To avoid an undesired color cast in the partly viewable image seen through the peripheral edge area of the display cover layer, the display may be provided with color cast compensation structures such as a guest-host liquid crystal layer that exhibits an anisotropic colored light absorption characteristic, a diffuser layer, and/or other optical structures.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: January 2, 2024
    Assignee: Apple Inc.
    Inventors: Sameer Pandya, Daniel J. Barrett, Erik G. de Jong, James P. Landry, David A. Doyle, Jean-Pierre S. Guillou, Jung Yun Seuh, Yi Qiao
  • Patent number: 11853506
    Abstract: A touch driving apparatus, a touch control apparatus and a touch driving method are provided. The touch driving apparatus includes at least one output module. Each output module comprises at least two output stage circuits, each having an output terminal configured to output a driving signal to a connected driving electrode. The method includes: for each output module, determining a first and a second output stage circuit groups in the current driving time period according to a CDM code matrix. A first driving signal group corresponding to the first output stage circuit group is expected to discharge a first driving electrode group, and a second driving signal group corresponding to the second output stage circuit group is expected to charge a second driving electrode group; and controlling utilizing power from the first driving electrode group to charge the second driving electrode group, in response to the determination.
    Type: Grant
    Filed: February 8, 2023
    Date of Patent: December 26, 2023
    Assignee: Beijing ESWIN Computing Technology Co., Ltd.
    Inventors: Keith Rowland Charles Brady, Konstantinos Theodoropoulos
  • Patent number: 11854504
    Abstract: A display device includes: a display panel having a display region in which pixels are arranged; scan lines each coupled to the pixels arranged in a row direction; signal lines each coupled to the pixels arranged in a column direction; a signal line drive circuit; a scan line drive circuit selecting the scan lines; and a signal processing circuit. A second half period of a selection period of a first scan line overlaps a first half period of a selection period of a second scan line. The signal processing circuit adjusts a pixel gradation value of the pixel in an m-th column coupled to the second scan line when a difference value between the pixel gradation value of the pixel in the m-th column coupled to the first scan line and an average gradation value of the pixels arranged in the m-th column is larger than a predetermined value.
    Type: Grant
    Filed: May 15, 2023
    Date of Patent: December 26, 2023
    Assignee: Japan Display Inc.
    Inventors: Daijiro Takano, Takayuki Imai
  • Patent number: 11837192
    Abstract: A device information display system includes a device information display chassis with a display device, a device information display connector that is configured to connect to a computing device connector on any of a plurality of computing devices, and a device information retrieval subsystem coupled to each of the display device and the device information display connector. The device information retrieval subsystem automatically receives first device information associated with a first computing device from the first computing device in response to the device information display connector being connected to the first computing device and, while the device information display connector is connected to the first computing device, provides the first device information for display on the display device.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: December 5, 2023
    Assignee: Dell Products L.P.
    Inventors: Colin Montgomery, Neal Beard, Shree Rathinasamy
  • Patent number: 11829535
    Abstract: An information handling system keyboard includes an array of microphones having a defined layout that supports location of human voice sounds captured by the array of microphones to isolate voices originating from a defined distance and orientation while filtering other voices and non-voice sounds. A display included in the keyboard depicts a visual indication of voice quality that can include instructions to a speaker regarding adjustments to help obtain a desired voice capture quality to support a video or audio conference of an information handling system interfaced with the keyboard. The keyboard display also supports an interface to control a keyboard, video, mouse (KVM) switch interfaced with the keyboard.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: November 28, 2023
    Assignee: Dell Products L.P.
    Inventors: Peng Lip Goh, Suet Chan Law, Deeder M. Aurongzeb
  • Patent number: 11829597
    Abstract: Disclosed is an electronic device for processing a handwriting input and including a touch screen, a processor operatively connected with the touch screen, and a memory operatively connected with the processor, wherein the memory stores instructions, which when executed, cause the processor to control the electronic device to perform handwriting recognition for a first handwriting input of a user displayed on the touch screen, to convert the first handwriting input into a text, identify at least one of an attribute or characteristic of the first handwriting input, apply at least one of the identified attribute or characteristic to the converted text, and in response to a request for conversion of the first handwriting input, replace the first handwriting input into a text (herein after, a first rich text) to which the identified at least one of the attribute or characteristic has been applied.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: November 28, 2023
    Inventors: Donghyuk Lee, Taewon Kwak, Kyungmin Kim, Dohyeon Kim, Jungrim Kim, Jihoon Kim, Gibeyong Park, Jeongwan Park, Jinsu Shin, Konsang Lee, Seungcheol Lee, Bongje Cho, Munwon Choi, Seowon Choi, Eunji Choi, Yeunwook Lim
  • Patent number: 11817051
    Abstract: A display device and driving method may include a display panel, a voltage curve controller generating compensated voltage curves including a first compensated voltage curve having a second point with respect to a maximum grayscale and a fourth point with respect to an intermediate grayscale generated by normalizing a first point and a third point of a first reference voltage curve with respect to a peak white grayscale and a full white grayscale based on an entire grayscale, and a driving voltage controller generating a driving voltage from the compensated voltage curves based on a load of the input image data and a maximum grayscale value of the input image data.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: November 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kihyun Pyun, Jang-Hoon Kwak
  • Patent number: 11810530
    Abstract: A method for display-brightness adjustment and related products is for an electronic device. The electronic device includes a screen and a distributed processing unit (DPU), the DPU includes hardware of N layers and a layer mix, and the hardware of N layers includes hardware of a first layer and hardware of M second layer, N being an integer greater than 1, M<N, and each of the hardware of N layers being coupled with the layer mix. The method includes the following. Backlight brightness of the screen is set to a first threshold in response to detecting an adjustment instruction for the backlight brightness of the screen. The first layer is modified to decrease brightness of the first layer. A third layer is obtained by superimposing a modified first layer and multiple second layer. Display the third layer on the screen.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: November 7, 2023
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Jie Hu, Zhiqing Yao
  • Patent number: 11804192
    Abstract: A display module is provided. The display module includes a main display panel, an auxiliary display panel and a backlight module which are laminated sequentially, at least one temperature sensing circuit in the auxiliary display panel, and a control circuit coupled to the at least one temperature sensing circuit. The temperature sensing circuit is configured to generate, based on temperature of the auxiliary display panel, a temperature signal related to the temperature, and the control circuit is configured to adjust a display parameter of the main display panel based on the temperature signal.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: October 31, 2023
    Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Hui Yu, Xin Fang, Kai Diao, Jie Liu, Chengkun Liu, Xin Chen
  • Patent number: 11798491
    Abstract: A high-definition display device is provided. A small display device is provided. In the display device, a first layer and a second layer are stacked and provided. The first layer includes a gate driver circuit and a source driver circuit, and the second layer includes a display portion. The gate driver circuit and the source driver circuit are provided to include a region overlapping with the display portion. The gate driver circuit and the source driver circuit have an overlap region where they are not strictly separated from each other. Five or more gate driver circuits and five or more source driver circuits can be provided.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: October 24, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takayuki Ikeda, Hidetomo Kobayashi, Hideaki Shishido, Kiyotaka Kimura, Takashi Nakagawa, Kosei Nei
  • Patent number: 11797260
    Abstract: A display apparatus includes a display module including a display panel configured to display an image, a supporting member on a rear surface of the display module, and a first vibration generating module including two or more vibration generating devices on the rear surface of the display module to output sounds of different sound bands.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: October 24, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: MinJin Lee, Taehyung Kim, YoungYoon You
  • Patent number: 11798500
    Abstract: A display device may include: a display panel configured to be driven in an active time and a blank time within one frame and including pixels each having a driving transistor; a data driver configured to provide a first data voltage based on an image data to the pixels in the active time; and a timing controller configured to compensate for the image data based on a first compensation data for a threshold voltage of the driving transistor and a second compensation data for a mobility of the driving transistor, the timing controller including a data compensator, a non-volatile memory, and volatile memories. The timing controller may be further configured to read a reference first compensation data from the non-volatile memory in the active time and update the first compensation data and the second compensation data to be stored in one of the volatile memories in the blank time.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: October 24, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jeonghyo Park, Minho Cho
  • Patent number: 11776508
    Abstract: A system includes a display monitor compatible with a video specification having a reference EOTF while exhibiting an actual EOTF that deviates from the reference EOFT. The system further includes a video source subsystem operable to determine an approximated EOTF representative of the actual EOTF based on user input received from a display of at least one test pattern to the user via the display monitor. The at least one test pattern is intended to elicit input from the user based on a visual inspection of the at least one test pattern by the user. The video source subsystem further is to convert color values of each video image of a stream of images to corresponding non-linear codewords based on the approximated EOTF, and transmit the codewords to the display monitor for display as display images representative of the video images.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: October 3, 2023
    Assignee: ATI TECHNOLOGIES ULC
    Inventors: Shu Key Keith Lee, David I. J. Glen
  • Patent number: 11776519
    Abstract: A display apparatus includes a display panel displaying an image and a vibration generating device disposed on a rear surface of the display panel to vibrate the display panel. The vibration generating device includes a piezoelectric structure including a first region and a second region, the first region has a vibration characteristic of a first frequency, and the second region has a vibration characteristic of a second frequency which differs from the first frequency.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: October 3, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: YuSeon Kho, Yong-Su Ham, YongWoo Lee
  • Patent number: 11768654
    Abstract: A display apparatus includes a display panel configured to display an image, and a vibration device on a rear surface of the display panel to vibrate the display panel to generate a sound, the vibration device including a vibration array including a plurality of vibration modules.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: September 26, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Sungsu Ham, Sungtae Lee, Joongsup Han, Uihyeon Jeong
  • Patent number: 11756494
    Abstract: Methods for efficiently clearing previous state information when driving a multi-particle color electrophoretic medium, for example, wherein at least two of the particles are colored and subtractive and at least one of the particles is scattering. Typically, such a system includes a white particle and cyan, yellow, and magenta subtractive primary colored particles. The clearing pulse may include two different portions of alternating impulses and the overall waveform may be DC balanced.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: September 12, 2023
    Assignee: E Ink Corporation
    Inventors: Irina Paykin, Stephen J. Telfer, Kenneth R. Crounse
  • Patent number: 11741865
    Abstract: A test apparatus includes a mura detection filter for detecting a mura area based on a detected image signal and outputting position information of the mura area and a filtered image signal, an image enhancement processor for performing deblurring on the filtered image signal based on the position information and outputting a deblurred image signal, a mura corrector for generating first compensation data for the mura area based on the deblurred image signal, a sampling corrector for generating second compensation data for a non-mura area based on the detected image signal, and a compensator for outputting compensation data based on the first compensation data and the second compensation data.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: August 29, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sihun Jang, Seyun Kim, Sangcheol Park, Mingyu Kim
  • Patent number: 11735093
    Abstract: A slew rate controller includes an amplifier configured to operate with a first driving voltage and a second driving voltage, and generate an output voltage by using an image data voltage inputted at a first time point; an output switch configured to apply the output voltage to an external panel load according to a first control signal at the first time point; a first switch connected between one end of the output switch and the amplifier; and a second switch connected between the other end of the output switch and the amplifier.
    Type: Grant
    Filed: October 12, 2022
    Date of Patent: August 22, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventors: Young Tae Kim, Won Kim, Taiming Piao, Dong Hun Lee
  • Patent number: 11727856
    Abstract: A light emitting display apparatus can include a first pixel and a second pixel. The first pixel can include a first light emitting device and a first pixel driving circuit configured to drive the first light emitting device. The second pixel can include a second light emitting device and a second pixel driving circuit configured to drive the second light emitting device. The light emitting display apparatus can further include a repair transistor connected between the first light emitting device and the second light emitting device, and a repair control transistor connected to a gate of the repair transistor.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: August 15, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Bongchoon Kwak