Patents Examined by B. Lee
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Patent number: 11749165Abstract: A brightness parameter correction method and device and a brightness compensation system.Type: GrantFiled: October 14, 2022Date of Patent: September 5, 2023Assignee: Kunshan New Flat Panel Display Technology Center Co., Ltd.Inventors: Feng Chen, Xiaoyu Gao
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Patent number: 11749782Abstract: A display device according to an embodiment of the present disclosure may include pixels including a first pixel and a second pixel sequentially arranged in a display area along a first direction, each of the first pixel and the second pixel including sub pixels arranged along a second direction corresponding to emission areas, and a first power line and a second power line connected to the pixels. Each of the sub pixels may include a light emitting element, a first electrode connected between the light emitting element and the first power line, and a second electrode connected between the light emitting element and the second power line. The second electrodes of the sub pixels of the first and second pixels may be integrally connected to each other to configure an integrated electrode, and may be commonly connected to the second power line through a first contact portion.Type: GrantFiled: December 20, 2021Date of Patent: September 5, 2023Assignee: Samsung Display Co., Ltd.Inventors: Ji Hye Lee, Jin Seon Kwak, Yong Hee Lee, Ki Hyun Pyo
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Patent number: 11749193Abstract: Provided a pixel circuit, a method for driving a pixel circuit, a display panel, and a display apparatus. The pixel circuit applied in a display panel includes a data writing module, a drive transistor, a leakage current alleviation module, a first power supply terminal, and a data signal terminal. The data writing module configured to write data signal of the data signal terminal to gate of the drive transistor in data writing stage; the leakage current alleviation module configured to transmit leakage current generated by the data writing module to first power supply terminal in leakage current alleviation stage; and the drive transistor configured to drive a light-emitting element to emit light in light emission stage. The leakage current alleviation stage located at least between the data writing stage and the light emission stage, enhancing the luminance accuracy of the light-emitting element and the display uniformity of the display panel.Type: GrantFiled: February 11, 2022Date of Patent: September 5, 2023Assignees: Wuhan Tianma Microelectronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai BranchInventors: Zhi Liu, Yana Gao, Fei Wu, Yue Li, Xingyao Zhou, Xueqi Tian
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Patent number: 11740722Abstract: The present invention relates to automotive interface systems and methods. In one embodiment, an automotive interface system includes a steering wheel and an integrated interpolated variable impedance array that comprises a grid of sensing elements. The sensing elements are configured to power on simultaneously and to simultaneously generate multiple currents along multiple current paths in response to sensing a touch wherein the amount of current generated by a sensing element of the grid is directly proportional to the force applied by the touch. The automotive interface system also includes an analog-to-digital converter (ADC) and a processor communicatively coupled to the interpolated variable impedance array that are configured to receive the multiple currents along multiple current paths and determine a location, a duration, an area, and a force of the touch from the multiple currents along multiple current paths.Type: GrantFiled: May 23, 2022Date of Patent: August 29, 2023Assignee: Sensel, Inc.Inventors: Alexander Meagher Grau, Bethany Noel Haniger, Mark Joshua Rosenberg, Reuben Eric Martinez, Scott Gregory Isaacson, Stephanie Jeanne Oberg, Timothy James Miller, Tomer Moscovich
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Patent number: 11735130Abstract: The disclosure provides a white balance adjusting method, device, and electronic equipment. The method includes obtaining a first image parameter of a panel under test; obtaining a white balance compensation factor of the panel under test; using a gamma value of the panel under test as a first threshold value to obtain a first target luminance of the panel under test; obtaining a second target luminance of the panel under test; and obtaining grayscale voltages corresponding to sub-pixels of the panel under test based on the second target luminance of the panel under test.Type: GrantFiled: August 4, 2020Date of Patent: August 22, 2023Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Bo Hai
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Patent number: 11735109Abstract: The present disclosure relates to a display panel and a display device using the same, and includes a first region where pixels are disposed, and a second region where pixels having a lower pixel density (pixels per inch: PPI) compared to the first region are disposed. Each of the pixels of the first region includes a first pixel circuit. Each of the pixels of the second region includes a second pixel circuit. The second pixel circuit includes fewer transistors compared to the first pixel circuit.Type: GrantFiled: September 14, 2021Date of Patent: August 22, 2023Assignee: LG Display Co., Ltd.Inventors: Bo Yun Jung, Bo Gun Seo
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Patent number: 11726590Abstract: Methods and apparatus to facilitate user interactions with foldable displays are disclosed. An electronic device includes a display, an array of transmitters to extend across the display in a first direction, and an array of receivers to extend across the display in a second direction different than the first direction. The transmitters and receivers to enable detection of at least one of a hover event or a touch event in an area of the display. The receivers to extend less than a full distance across the display.Type: GrantFiled: March 23, 2022Date of Patent: August 15, 2023Assignee: INTEL CORPORATIONInventors: Jun Jiang, Russell Beauregard, Saara Kamppari-Miller, Vivek Paranjape
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Patent number: 11710431Abstract: A method of manufacturing a display apparatus includes performing a first repair process of detecting a first defective light emitting diode (LED) from among a plurality of LEDs provided on a sapphire substrate and removing the first defective LED; attaching the plurality of LEDs to electrode patterns of an interposer substrate and separating the sapphire substrate from the plurality of LEDs; and performing a second repair process of detecting a second defective LED among the plurality of LEDs attached to the electrode patterns and replacing the second defective LED.Type: GrantFiled: October 14, 2020Date of Patent: July 25, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byungchul Kim, Doyoung Kwag, Sangmoo Park, Minsub Oh
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Patent number: 11710460Abstract: A display device includes at least a first luminance range and a second luminance range which includes a luminance different from the first luminance range. In a boundary area of a second dimming range corresponding to the second luminance range and which is adjacent to a first dimming range corresponding to the first luminance range, a reference luminance emitted from a pixel is maintained as a first constant luminance value, and an off-duty number, which is the number of periods in which the pixel is turned off during one frame, is gradually increased by an emission control signal.Type: GrantFiled: September 2, 2021Date of Patent: July 25, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jung Kook Park, Dong Wan Park, Do Hyun Kang
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Patent number: 11710440Abstract: A display driver that drives a display panel comprises storage circuitry, color addition processing circuitry, and drive circuitry. The storage circuitry stores F subpixel data acquired from color coordinate data indicating color coordinates of a displayed color in a predetermined color space displayed on the display panel when an R subpixel, a G subpixel, and a B subpixel in each of a plurality of pixels of the display panel are driven with drive signals corresponding to a minimum grayscale value and an F subpixel in each of the plurality of pixels which displays an additional color other than a primary color R, a primary color G, and a primary color B is driven with a drive signal corresponding to a maximum grayscale value. The color addition processing circuitry generates output FRGB data from input RGB data, in response to the F subpixel data stored in the storage circuitry.Type: GrantFiled: August 3, 2022Date of Patent: July 25, 2023Assignee: Synaptics IncorporatedInventors: Masao Orio, Hirobumi Furihata, Kazutoshi Aogaki, Takashi Nose
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Patent number: 11705078Abstract: Systems and methods are provided that may be implemented to identify viewable areas of a display panel (such as a liquid crystal display (LCD) panel) of a display panel assembly that are currently not utilized by a user, and then to selectively and dynamically turn off backlights or blocks of backlights (e.g., such as light emitting diode “LED” backlight elements) that illuminate viewable areas of the display panel that correspond to these non-utilized viewable areas. The systems and methods may be so implemented in one example to reduce power consumption of a display panel assembly.Type: GrantFiled: February 25, 2022Date of Patent: July 18, 2023Assignee: Dell Products L.P.Inventors: Tze Fung Chung, Dengzhai Xiong
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Patent number: 11705044Abstract: A display device includes: a pixel part to display an image and including pixels receiving a reference voltage; a controller to determine a value of the reference voltage based on a load of the entire pixel part, and to control a grayscale range of image data according to a location in the pixel part based on the reference voltage; a data driver to supply data voltages to the pixel part through data lines based on grayscale ranges adjusted for each location in the pixel part; and a scan driver to supply a scan signal to the pixels through scan lines.Type: GrantFiled: May 13, 2021Date of Patent: July 18, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jin Young Roh, Hyo Jin Lee, Jae Keun Lim, Hong Soo Kim, Se Hyuk Park
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Patent number: 11703712Abstract: A display module is provided. In the display module, a liquid crystal display panel has a plurality of display subareas. A color backlight module has a plurality of backlight subareas in a one-to-one correspondence to the plurality of display subareas. A driving apparatus may sequentially drive liquid crystal molecules in the display subareas to turn over, and after driving the liquid crystal molecules in each display subarea to turn over, drive a light-emitting element of one color included in each backlight source in one corresponding backlight subarea to emit light.Type: GrantFiled: January 5, 2022Date of Patent: July 18, 2023Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Qing Ma, Rui Han, Pengtao Li, Daekeun Yoon, Jie Yu, Weining Chi, Tianyang Han, Jing Yu
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Patent number: 11705040Abstract: A display device includes a data line, a pixel electrically connected to the data line, a data driver for outputting a data voltage, and a transmitter electrically connected between an output terminal of the data driver and the data line. The transmitter may transmit an instance of the data voltage to the data line in a first period. The transmitter may amplify a second instance of the data voltage to generate a reference voltage and then transmit the reference voltage to the data line in a second period different from the first period. The pixel includes a light emitting element for emitting light in response to the first instance of the data voltage. A voltage level of the reference voltage may be higher than a voltage level of the data voltage.Type: GrantFiled: April 1, 2022Date of Patent: July 18, 2023Assignee: Samsung Display Co., Ltd.Inventors: Seok Gyu Ban, Kyung Man Kim, Sang Jae Yeo
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Patent number: 11705043Abstract: A display panel includes an array substrate, a plurality of cascading GOA units, a plurality of DEMUX switching units, and a DEMUX control signal generating circuit. One DEMUX switching unit includes a scanning signal input port, at least two control signal input ports, and at least two scanning signal output ports. One GOA unit is connected to the scanning signal input port, the DEMUX control signal generating circuit is connected to the at least two control signal input ports, and the scanning signal output ports are connected to corresponding gate lines.Type: GrantFiled: March 24, 2020Date of Patent: July 18, 2023Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Ronglei Dai, Zuoyuan Xu
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Patent number: 11705074Abstract: A display device includes a display panel that includes a first display area and a second display area, a data driving circuit which drives a plurality of data lines, a scan driving circuit which drives a plurality of scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit such that the first display area is driven at a first driving frequency, and the second display area is driven at a second driving frequency lower than the first driving frequency during a multi-frequency mode, where the driving controller receives an image signal and provides to the data driving circuit an image data signal obtained by compensating for a gamma level of the image signal corresponding to the second display area during the multi-frequency mode.Type: GrantFiled: December 1, 2021Date of Patent: July 18, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Woomi Bae, Hae-Kwan Seo, Youngha Sohn, Hyojin Lee, Jaekeun Lim
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Patent number: 11699400Abstract: A scan driving circuit of a display device includes a first output terminal electrically connected to a first scan line, a second output terminal electrically connected to a second scan line, a first masking circuit electrically connecting the first output terminal and the second output terminal and outputting, as a first scan signal, a second scan signal to the first output terminal, a driving circuit outputting the second scan signal to the second output terminal in response to clock signals and a carry signal, and a second masking circuit masking the second scan signal to a predetermined level in response to the second masking signal, wherein the first masking circuit electrically disconnects the first output terminal from the second output terminal in response to a first masking signal.Type: GrantFiled: July 14, 2022Date of Patent: July 11, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hae-Kwan Seo, Seongheon Cho, Soon-Dong Kim, Taehoon Kim
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Patent number: 11694593Abstract: The present disclosure provides a display panel and a display device. The display panel includes source driver chips. The source driver chips include charging compensation modules, and each of the charging compensation modules includes: a plurality of shift registers cascadely connected and configured to time-divisionally output a plurality of pulse signals, and a plurality of level shift circuits time-divisionally conducted in response to the plurality of the pulse signals to prevent the plurality of the level shift circuits in the source driver chips from outputting and generating a plurality electron currents at a same time, which would result in a superposition of current peaks and cause electromagnetic interference problems.Type: GrantFiled: November 30, 2020Date of Patent: July 4, 2023Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTDInventor: Jinfeng Liu
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Patent number: 11693450Abstract: Reconfigurable touch screen computing devices with folding configurations that include flexible displays made up of segments reconfigured from a folded state to an expanded state are described. The form factor of the folded state is the size of a handheld phone (including an integrated speaker and microphone). The form factor of the expanded state is the size of a tablet computer. Both states provide a configuration including a touch screen display on a front side and a protective housing on a back side. The computing devices include sensors indicating the state and mechanisms for folding, alignment, and structural support, and magnets for the devices to be locked in the folded or unfolded state. A module attached to at least one segment may contain substantially all processing and memory, and a communications system, all which may be used in either state.Type: GrantFiled: April 12, 2022Date of Patent: July 4, 2023Assignee: LEPTON COMPUTING LLCInventor: Stephen E. Delaporte
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Patent number: 11688316Abstract: A pixel circuit includes a data line, a sensing line, a first pixel sub-circuit and a second pixel sub-circuit. The first pixel sub-circuit includes a first writing unit, a first sensing unit and a first driving unit. The first driving unit is configured to drive a first light-emitting unit to emit light. The second pixel sub-circuit includes a second writing unit, a second sensing unit and a second driving unit. The second driving unit is configured to drive a second light-emitting unit to emit light. The first writing unit and the second sensing unit are both configured to be connected to a gate driving unit. The second writing unit and the first sensing unit are both configured to be connected to another gate driving unit.Type: GrantFiled: September 14, 2022Date of Patent: June 27, 2023Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xuehuan Feng, Yongqian Li