Patents Examined by Gene W Lee
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Patent number: 12056321Abstract: Touch electrode architectures for reducing the occurrence of negative pixels in mutual capacitance touch sensor panels that are caused by poorly grounded objects are disclosed. A touch electrode architecture can utilize mutual capacitance unit cells, each of which include a drive electrode, a sense electrode, and one or more ground bars. The one or more ground bars can provide an increased capacitive path to ground for a poorly grounded finger, which can result in a larger reduction in mutual capacitance between the drive and sense electrodes, improving touch detection. In addition, the increased capacitive coupling between the object and ground reduces the amount of charge that couples back onto nearby sense electrodes, which can reduce the negative pixel that can occur at those electrodes and reduce the number of touch detection errors. The one or more ground bars can be formed in the same layer as the drive electrode.Type: GrantFiled: August 9, 2023Date of Patent: August 6, 2024Assignee: Apple Inc.Inventors: Karan S. Jain, Santosh Pokhrel
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Patent number: 12051346Abstract: A test method includes generating first image data by imaging a display panel including pixels, generating boundary data by detecting a spot area in the display panel based on the first image data, generating second image data by deblurring the first image data with respect to a boundary area disposed at a boundary of the spot area based on the boundary data and generating correction data by setting a correction area including the boundary area based on the second image data.Type: GrantFiled: August 8, 2022Date of Patent: July 30, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hyungwoo Yim, Seyun Kim, Huisu Kim, Hakmo Choi, Seungho Park, Kyung-Sik Joo
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Patent number: 12051382Abstract: A system for controlling backlight unit capable of reducing a time difference between an image displayed on a display panel and local dimming of the backlight unit, includes a plurality of dimming control devices configured to receive an input data packet including dimming data, and control local dimming of a light source, which is included in a region assigned in advance in a backlight unit, using the dimming data, a plurality of gate lines configured to electrically connect a predetermined number of dimming control devices and configured to be sequentially driven according to a row driving method, and a micro controller unit configured to generate a gate control signal for driving the plurality of gate lines and the input data packet.Type: GrantFiled: December 16, 2022Date of Patent: July 30, 2024Assignee: LX SEMICON CO., LTD.Inventors: Yun Sung Wang, Soon Hyeok Kwak, Jang Su Kim, Sang Suk Kim
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Patent number: 12046197Abstract: The present embodiment provides an image data processing apparatus, including a memory storing previous frame image data and an image data compensating circuit configured to generate overdriving image data for current frame image data by comparing the previous frame image data and the current frame image data, wherein the degree of an overdriving is adjusted based on a display brightness value (DBV), which is used for adjusting the brightness of a display panel.Type: GrantFiled: May 25, 2022Date of Patent: July 23, 2024Assignee: LX SEMICON CO., LTD.Inventors: Ji Won Lee, Ji Hong Yuk, Sa Ra Yoon
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Patent number: 12046188Abstract: The present disclosure discloses a display device and a driving method of the display device. The display device includes a display panel for displaying an image, a driver for driving the display panel, a controller for controlling the driver, and a duty cycle controller for defining an unknown area in which vertical resolution information is not known and a known area in which the vertical resolution information is known within one frame when a driving frequency of the display panel is changed, and varying a duty cycle for driving the known area.Type: GrantFiled: June 22, 2023Date of Patent: July 23, 2024Assignee: LG Display Co., Ltd.Inventors: Jae Yeong Go, Tae Gung Kim, Dae Sung Park
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Patent number: 12039917Abstract: A display includes pixels distributed in a pixel array of rows and columns that are grouped in mutually exclusive pixel clusters on a display substrate in a display area. Cluster controllers are disposed on the display substrate and are each connected to the pixels in a pixel cluster to control the pixels to emit light. A display controller external to the display area is connected to each row of pixels in each pixel cluster with a row wire. Each row of pixels in each pixel cluster can be connected with a cluster row wire and the corresponding cluster row wires of each pixel cluster can be connected together. The cluster controllers can be disposed between pixels in the pixel cluster or between adjacent pixel clusters on the display substrate.Type: GrantFiled: December 2, 2022Date of Patent: July 16, 2024Assignee: X Display Company Technology LimitedInventors: Christopher Andrew Bower, Matthew Alexander Meitl, Imre Knausz, Murat Ozbas, Ronald S. Cok, Mike C. Chiu
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Patent number: 12039948Abstract: The present disclosure provides a driving method for a liquid crystal display panel and a non-transitory computer storage medium. The driving method includes: for the plurality of sub-pixels, adopting a first gray-level table for displaying a picture in other frame pictures other than a first frame picture in each of the plurality of predetermined periods, the first gray-level table including a plurality of first gray-level values; and adopting a second gray-level table for displaying a picture in the first frame picture in each of the plurality of predetermined periods, the second gray-level table including a plurality of second gray-level values.Type: GrantFiled: March 22, 2021Date of Patent: July 16, 2024Assignees: Wuhan BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Hangyu Chen, Lijun Xiao, Junmin Zhang, Bing Li, Feng Jiang, Meng Feng, Mengchao Shuai, Jianmin Xiang, Yun Bai
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Patent number: 12033591Abstract: A display device includes a display panel, a backlight module and a circuit. The display panel includes multiple regions. The back light module includes multiple light emitting units, and each region corresponds to at least one of the light emitting units. The circuit includes a calibration lookup table corresponding to a first light emitting unit. The calibration lookup table records a parameter and multiple duty cycles. The circuit accesses the calibration lookup table and determines an output duty cycle according to the duty cycles. The circuit determines a current value of the first light emitting unit to drive the first light emitting unit according to the output duty cycle and the parameter.Type: GrantFiled: December 2, 2022Date of Patent: July 9, 2024Assignee: Radiant Opto-Electronics CorporationInventors: Peng-Hsiang Wu, Hung-Pao Wu, Chun-Yi Sun, Jon-Hong Lin, Lian-Young Lee, Bo-Ru Huang
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Patent number: 12026300Abstract: A display device including a display unit having a display panel and a camera; a posture adjustment driving unit configured to adjust a posture of the display unit; and a controller configured to control the camera to capture a first image of a viewer viewing the display unit, calculate a first viewer posture inferred by an artificial intelligence model from the first image captured by the camera, control the posture adjustment driving unit to adjust the posture of the display unit to correspond to a feature point of the viewer based on the calculated first viewer posture, and control the posture adjustment driving unit to adjust the posture of the display unit to have a height fluctuation of a sinusoidal curve trajectory continuous within a vertical top-bottom movement range of the display unit based on the calculated first viewer posture.Type: GrantFiled: May 3, 2023Date of Patent: July 2, 2024Assignee: LG ELECTRONICS INC.Inventors: Jinho Park, Hyunjae Jun, Minsoo Cho, Junho Roh, Taewoong Park
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Patent number: 12020656Abstract: According to an aspect, a display device includes: a display panel having a display area including pixels; a light source device configured to emit light from an emission area overlapping the display area toward the display panel; a dimming panel between the display panel and the light source device and configured to adjust brightness of emission light emitted from the emission area; and a drive circuit configured to drive the dimming panel. The emission area has a first emission area and a second emission area. The drive circuit is configured to, when gradation values of first pixels corresponding to the first emission area are equal to gradation values of second pixels corresponding to the second emission area, make transmittance of a second dimming area corresponding to the second pixels higher than that of a first dimming area corresponding to the first pixels in the dimming area.Type: GrantFiled: July 3, 2023Date of Patent: June 25, 2024Assignee: Japan Display Inc.Inventors: Takaya Hirose, Hirofumi Ohira, Makoto Ishikawa
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Patent number: 11996059Abstract: The present disclosure relates to an image display apparatus. An image display apparatus according to an embodiment of the present disclosure includes a panel, a plurality of light sources for outputting light to the panel, a plurality of data drivers for outputting data signals to the plurality of light sources, and a plurality of gate drivers for outputting gate signals to the plurality of light sources, and among the plurality of light sources, light sources disposed in a first vertical line and light sources disposed in a second vertical line are connected to a first data line. Accordingly, it is possible to display an image by efficiently using the data drivers.Type: GrantFiled: March 21, 2023Date of Patent: May 28, 2024Assignee: LG ELECTRONICS INC.Inventor: Moongu Jung
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Patent number: 11996040Abstract: A display device may include first pixels configured to emit light in a first color, second pixels configured to emit light in a second color different from the first color, a data driver configured to supply first reference voltages to data lines coupled to the first pixels, and a sensing circuit configured to receive first sensing voltages from sensing lines coupled to the first pixels, wherein the data driver supplies second reference voltages different from the first reference voltages to data lines coupled to the second pixels, and the sensing circuit receives second sensing voltages from sensing lines coupled to the second pixels.Type: GrantFiled: May 5, 2023Date of Patent: May 28, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ki Hyun Pyun, Jang Hoon Kwak
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Patent number: 11990077Abstract: A display device and a luminance and color compensation method thereof are provided. The luminance and color compensation method includes: calculating a plurality of compensation values of a plurality of display pixels of a plurality of setting grayscale values based on at least one selected color; recording the compensation values to obtain look-up information; receiving a plurality of image grayscale values of a display image, and obtaining a plurality of selected compensation values respectively corresponding to the display pixels according to the look-up information based on the image grayscale values; and respectively compensating display luminance of the display pixels according to the selected compensation values.Type: GrantFiled: December 20, 2022Date of Patent: May 21, 2024Assignee: AUO CorporationInventor: Chun-Han Tai
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Patent number: 11990103Abstract: An interface circuit comprises a timing signal generating unit that generates a timing signal indicating a timing to switch between a data input period and a non-input period, a plurality of driver error detection circuits that detects an error in source drivers, a selector circuit that selects one of the driver error detection circuits in the non-input period and that outputs a driver error detection signal indicating an error detection result, an input error detection circuit that detects an input error of a data signal and outputs an input error detection signal indicating the result, an OR circuit that outputs an OR of the driver error detection signal and the input error detection signal, and a signal output unit connected to an output part of the OR circuit.Type: GrantFiled: March 21, 2023Date of Patent: May 21, 2024Assignee: LAPIS TECHNOLOGY CO., LTD.Inventor: Yukinobu Watanabe
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Patent number: 11972739Abstract: An image display method includes generating luminance data, applying a special filter to the luminance data, generating luminance setting data, generating gradation setting data, and controlling a backlight based on the luminance setting data and a liquid crystal panel based on the gradation setting data. The luminance data indicates a luminance value for each of light-emitting regions of the backlight based on a maximum gradation value among gradation values of image pixels of an input image that correspond to the light-emitting region. The special filter is applied such that, with respect to each light-emitting region, a difference of the luminance value thereof from the luminance values of neighboring light-emitting regions decreases, and the luminance setting data is generated therefrom. The gradation setting data sets a gradation value of each pixel of the liquid crystal panel, and is generated based on the input image and the luminance setting data.Type: GrantFiled: February 22, 2022Date of Patent: April 30, 2024Assignee: Nichia CorporationInventor: Masahiko Monomoshi
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Patent number: 11967267Abstract: Provided is a display device including a display panel, an optical sensor, a timing controller, a scan driver, a data driver, and an image controller. The timing controller controls an image refresh rate of the display panel based on a refresh rate control signal. Thus, the display device provides improved visibility.Type: GrantFiled: May 2, 2023Date of Patent: April 23, 2024Assignees: Samsung Display Co., Ltd., UNIST (Ulsan National Institute Of Science and Technology)Inventors: Hyo Sun Kim, Oh Sang Kwon, Seong Gyu Choe, Chang Yeong Han, Min Kyung Kim, You Ra Kim, Eun Jung Lee, Hyung Suk Hwang
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Patent number: 11955051Abstract: A receiver of a display driver and an operating method of the receiver of the display driver are provided. The receiver of the display driver includes an input interface, an operational amplifier and a bias current control circuit. The input interface receives image data. The operational amplifier is coupled to the input interface and includes a bias current circuit. The bias current control circuit adjusts a bias current of the bias current circuit according to a data rate of the image data. The operating method is adapted to the receiver of the display driver.Type: GrantFiled: March 3, 2023Date of Patent: April 9, 2024Assignee: Novatek Microelectronics Corp.Inventor: Huan-Teng Cheng
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Patent number: 11951834Abstract: An information provision device, information provision method, and a non-transitory recording medium storing a program for causing a computer to execute the information provision method. Each of the information provision device and the information provision method includes projecting an image light to a light transmission member to display a for-driver information image indicating for-driver information to be provided to a driver of a mobile object in a prescribed display area, and displaying at a first point where a normal for-driver information image is displayed a priority for-driver information image in place of the normal for-driver information image, where the displaying includes displaying the normal for-driver information image at a second point different from the first point for at least some of a period during which the priority for-driver information image is displayed at the first point.Type: GrantFiled: June 2, 2021Date of Patent: April 9, 2024Assignee: Ricoh Company, Ltd.Inventors: Yoshiaki Nishizaki, Michinari Shinohara
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Patent number: 11948492Abstract: A display device includes a display panel and a display panel driver. The display panel includes pixels. The display panel driver determines an average image load of input image data, determines an operation mode based on a grayscale value of the input image data and the average image load as a first operation mode or a second operation mode, applies a first scale factor to the input image data in the first operation mode, applies a second scale factor different from the first scale factor to the input image data in the second operation mode, and drives the display panel.Type: GrantFiled: August 2, 2022Date of Patent: April 2, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jinho Lee, Sungjae Park, Seunghwan Park, Namjae Lim, Youngwoon Choi, Jong Wook Kim
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Patent number: 11942048Abstract: 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: GrantFiled: April 11, 2023Date of Patent: March 26, 2024Assignee: Japan Display Inc.Inventors: Tomoyuki Ishihara, Tomohide Oohira, Yasuhiko Yamagishi