Color Patents (Class 345/88)
  • Patent number: 11922895
    Abstract: A liquid crystal display panel, a driving method, and a terminal thereof are disclosed. The display panel includes a pixel structure including data lines and scan lines, wherein each data line is connected to at least two pixel groups, and each pixel group includes three sub-pixels having different colors sequentially connected to the data lines; and a first driving unit electrically connected to the scan lines and inputting scan signals to the scan lines in a preset order to solve a problem of horizontal bright and dark lines.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: March 5, 2024
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yoonsung Um, Lixia Li, Bangyin Peng, Yingchun Zhao, Fen Long, Qiqi Zhang
  • Patent number: 11915642
    Abstract: A display device includes: a display unit, a first logic control unit and a light emitting driving unit. The first logic control unit is configured to receive image display data for instructing the display unit to display a static image in a local area, if it is determined that the local area maintains displaying the static image beyond a first threshold duration, then preset replacement display data and the image display data are alternately transmitted to the light-emitting driving unit, where a transmission frequency of the replacement display data is a preset maintenance frequency, and the replacement display data is used to enable the display unit to display a replacement color image in the local area; and the light-emitting driving unit is configured to respond to the data received from the first logic control unit and control the display unit to display the static image or the replacement color image.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: February 27, 2024
    Assignee: Yungu (Gu'an) Technology Co., Ltd.
    Inventor: Zheng Li
  • Patent number: 11887526
    Abstract: A circuit device includes: a color reduction circuit configured to execute color reduction processing from input image data in which pixel data is m bits to color-reduced image data in which pixel data is n bits, and configured to apply spatial error diffusion or temporal error diffusion in the color reduction processing; a storage circuit storing the color-reduced image data; and an image conversion circuit configured to execute image conversion processing, which is at least one of mapping processing and scaling processing, on the color-reduced image data stored in the storage circuit to output output image data, and configured to execute interpolation processing, which is in the image conversion processing, of generating pixel data of the output image data from a plurality of pieces of pixel data of the color-reduced image data.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: January 30, 2024
    Inventor: Yasutoshi Akiba
  • Patent number: 11862119
    Abstract: According to an aspect, a display device includes a display panel configured to display an image; and a light source configured to emit light to the display panel. The light source includes a first light source configured to emit light in a first primary color, a second light source configured to emit light in a second primary color, and a third light source configured to emit light in a third primary color. A frame period that is a display period of one frame image includes a predetermined number of subframe periods, the predetermined number is four or greater, and color reproduction of the one frame image is performed by a combination of colors that are output in the predetermined number of subframe periods. An output order of colors of the subframe periods is an order of colors in a clockwise direction or in a counterclockwise direction in a hue circle.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: January 2, 2024
    Assignee: Japan Display Inc.
    Inventor: Tomoyuki Ishihara
  • Patent number: 11837154
    Abstract: A driving device, an operation method thereof, and a display apparatus are disclosed. The driving device is configured to drive a display panel. The driving device divides an image frame period into a plurality of sub-frame periods. A target pixel circuit in the display panel corresponds to target pixel data comprising at least one bit. Each bit in the target pixel data corresponds to at least one corresponding sub-frame period among the sub-frame periods. Different bits in the target pixel data correspond to different sub-frame periods among the sub-frame periods. According to a current bit in the target pixel data, the driving device determines whether to light up the target pixel circuit during the at least one corresponding sub-frame period corresponding to the current bit.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: December 5, 2023
    Assignee: Novatek Microelectronics Corp.
    Inventor: Yu-Tsung Lu
  • Patent number: 11818917
    Abstract: A display device including a display panel including a plurality of transistors and displaying an image on a front surface thereof; and a sensing module on a rear surface of the display panel, wherein the display panel includes a first region that overlaps the sensing module and a second region that does not overlap the sensing module, a W/L ratio of one of the transistors in the first region is greater than a W/L ratio of another of the transistors in the second region, the W/L ratio being obtained by dividing a width of a channel of the transistor by a length of the channel.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: November 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Woo Park, Won Kyu Kwak, Dong Wook Kim, Hyun-Chol Bang
  • Patent number: 11810495
    Abstract: Disclosed is a display driver integrated circuit (IC) which includes a data line driver that drives a first data line connected with a first pixel of a display in response to output image data, and a dithering circuit that receives a brightness value of the display, calculates a first reference grayscale value corresponding to the brightness value using a first group of threshold grayscale values, receives input image data with a first grayscale value, which corresponds to the first pixel, compares the first grayscale value and the first reference grayscale value, and generates the output image data having not the first grayscale value but an output grayscale value when the first grayscale value is smaller than the first reference grayscale value.
    Type: Grant
    Filed: October 5, 2022
    Date of Patent: November 7, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byoungyoon Jang, Yong Hoon Yu, Se Whan Na, Jong-Hee Na, Hyeonsu Park
  • Patent number: 11804162
    Abstract: A display device includes: a timing controlling part generating a three color image data, a data control signal and a gate control signal using an image signal and a plurality of timing signals, generating a first four color data having a white gray level data greater than 0 and a second four color data having the white gray level data of 0 using the three color image data, and generating a four color image data using the first and second four color data; a data driving part generating a data signal using the four color data and the data control signal; a gate driving part generating a gate signal using the gate control signal; and a display panel including a pixel having red, green, blue and white subpixels and displaying an image using the data signal and the gate signal.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: October 31, 2023
    Assignee: LG Display Co., Ltd.
    Inventor: Min-Chul Byun
  • Patent number: 11804196
    Abstract: Provided is a display substrate. The display substrate includes a base substrate, a plurality of gate lines, a plurality of data lines, and a plurality of rows of pixels arranged in an array on the base substrate, and a plurality of shift circuits disposed on the base substrate, wherein in a plurality of pixels connected to each shift circuit, the respective pixels sharing the same data line have the same color, and each shift circuit is connected to one turn-on signal terminal.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: October 31, 2023
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Tengfei Ding, Yang Wang, Shijun Wang, Bo Feng, Jun Fan, Wenkai Mu, Yi Liu, Xinlan Yang, Li Tian
  • Patent number: 11774822
    Abstract: The purpose of the present invention is to realize a structure that the testing terminals are remained in the final product in the liquid crystal display device having a variant display area. The structure of the present invention is as follows. The display area is variant, the outer shapes of the counter substrate 200 and the TFT substrate are also variant similar to the display area. The terminal area formed on the TFT substrate has a straight first area, a second area and a third area; the second area and the third are bent from the first area and formed at sides of the first area. A plurality of terminals to drive the liquid crystal display device exist in the first area, and a plurality of terminals for testing the liquid crystal display device exist in the second area and the third area.
    Type: Grant
    Filed: June 20, 2022
    Date of Patent: October 3, 2023
    Assignee: Japan Display Inc.
    Inventor: Gen Koide
  • Patent number: 11778859
    Abstract: A display device including a display panel including a plurality of transistors and displaying an image on a front surface thereof; and a sensing module on a rear surface of the display panel, wherein the display panel includes a first region that overlaps the sensing module and a second region that does not overlap the sensing module, a W/L ratio of one of the transistors in the first region is greater than a W/L ratio of another of the transistors in the second region, the W/L ratio being obtained by dividing a width of a channel of the transistor by a length of the channel.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: October 3, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Woo Park, Won Kyu Kwak, Dong Wook Kim, Hyun-Chol Bang
  • Patent number: 11756473
    Abstract: Disclosed are a digital gamma circuit capable of reducing a chip area and adjusting white color coordinates, and a source driver including the same. The digital gamma circuit may include a digital gamma algorithm for setting a gamma curve for each R, G, or B. Through the digital gamma algorithm, values of X-axis points of the gamma curve may be set, values of Y-axis points of the gamma curve corresponding to the values of the X-axis points may be set, and a value of at least one Y-axis point indicative of white among the values of the Y-axis points may be adjusted by adding an offset value thereto.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: September 12, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventor: Young Jun Jun
  • Patent number: 11754868
    Abstract: A liquid crystal display panel is provided. A micro-lens array, a black matrix layer array, and a detector array are sequentially disposed between a cover plate and an array substrate, and a combination of the micro-lens array and the black matrix layer array filters out more interference light, so that most of light entering the detector array is fingerprint reflected light, which improves an accuracy of fingerprint recognition. A liquid crystal display device having the liquid crystal display panel is also provided.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: September 12, 2023
    Inventors: Huanli Yang, Guowei Zha
  • Patent number: 11721298
    Abstract: A display panel and a display device are provided. The display panel includes a data driving unit provided a specific sequence of polarities and complementary high/low level for color shift compensation from a 1st terminal to a 16th terminal in each cycle unit to solve an issue of liquid crystal panel flicker, crosstalk, etc.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: August 8, 2023
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Jhenwei He
  • Patent number: 11721297
    Abstract: Provided is a display method applicable to a display device, the display device including a liquid crystal light control panel and a liquid crystal display (LCD) panel stacked together, the method including: acquiring a first sub-image and a second sub-image of an image to be displayed on the LCD panel, a boundary of the first sub-image being in contact with a boundary of the second sub-image; and decreasing a grayscale value of a first region, which is in contact with a boundary of a second light control region, in a first light control region, in response to determining that a grayscale value of the second sub-image is greater than a grayscale threshold.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: August 8, 2023
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guangyun Tong, Zhuolong Li, Yu Zhang, Bochang Wang
  • Patent number: 11715430
    Abstract: A backlight driving method includes steps of: (A) generating an original synchronization control (SC) signal, and a serial input signal that contains multiple predetermined delay values; (B) generating multiple internal SC signals based on the original SC signal and the delay values, such that respective time delays of the internal SC signals with respect to the original SC signal are respectively dependent on the delay values; and (C) generating multiple backlight driving outputs based on the internal SC signals to respectively drive multiple backlight sources, such that the backlight sources emit light in an order dependent on the delay values.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: August 1, 2023
    Assignee: Macroblock, Inc.
    Inventors: Chang-Lin Chen, Chun-Yi Li, Wei-Chung Chen
  • Patent number: 11705056
    Abstract: An electroluminescence display apparatus includes a display panel, including a pixel including a driving element and a light emitting device, and a panel driving circuit supplying the pixel with a first data voltage for a display driving operation and a display scan signal synchronized with the first data voltage in a vertical active period succeeding a first vertical blank period and maintaining the first data voltage in the pixel during a second vertical blank period succeeding the vertical active period, wherein a length of the first vertical blank period is fixed regardless of a variation of a frame frequency, and a length of the second vertical blank period varies based on the variation of the frame frequency.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: July 18, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Dong In Noh, Young Ho Kim, Yang Seok Jeong
  • Patent number: 11694633
    Abstract: The display device includes a display panel where sub-pixels are disposed. The display device includes a data driver that supplies a data voltage to the sub-pixels via data lines. The sub-pixels includes first sub-pixels to third sub-pixels. The first sub-pixels and second sub-pixels are alternately disposed on odd-numbered columns and the third sub-pixels are disposed on even-numbered columns. Each of the data lines branches into sub-data lines through a MUX, and the sub-data lines are disposed on both sides of the sub-pixels disposed on a column. Any one third sub-pixel of the third sub-pixels disposed on a row is connected to a sub-data line disposed on one side of the any one of third sub-pixel. Further, another third sub-pixel adjacent to any one third sub-pixel disposed on the row is connected to a sub-data line disposed on another side of the adjacent third sub-pixel. Thus, line dim is reduced.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: July 4, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: MinJic Lee, Yeseul Han, JeongOk Jo, Kwanghyun Choi
  • Patent number: 11694639
    Abstract: The present invention provides a backlight module and a method for calculating viewing angle for an unknown backlight module. In the present invention, brightness-viewing angle values of the unknown backlight module can be calculated according to the color saturation-viewing angle data of the unknown backlight module at specific viewing angles, and thus are taken to deploy the brightness-viewing angle values of a produced backlight module to be as the same as the brightness-viewing angle values of the unknown backlight module.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: July 4, 2023
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Bo Hai
  • Patent number: 11663977
    Abstract: The present disclosure provides a display device that controls output of a scan signal, conversion of image data, and output of a data signal in response to partial scan driving. The display device includes a display panel driven in one of a first mode and a second mode, a scan driver sequentially supplying a scan signal for writing data in the first mode, a controller generating image data in which input image data is rearranged based on the first mode or the second mode, and a data driver converting the image data into data signals and supplying the data signals to output channels.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: May 30, 2023
    Assignee: Samsung Display Co., Lid.
    Inventors: Se Hyuk Park, Hong Soo Kim, Jin Young Roh, Hyo Jin Lee, Jae Keun Lim
  • Patent number: 11620956
    Abstract: Disclosed are a multi-region backlight control system, a multi-region backlight control method, a television and a readable storage medium. The multi-region backlight control system includes a color liquid crystal display screen, a non-color liquid crystal display screen, a first driver, a second driver, a constant backlight source, and a main controller; the color liquid crystal display screen and the non-color liquid crystal display screen are sequentially fixed on the constant backlight source, and the non-color liquid crystal display screen is disposed between the color liquid crystal display screen and the constant backlight source; the main controller is respectively connected with the first driver, the second driver and the constant backlight source, the first driver is electrically connected with the color liquid crystal display screen, and the second driver is electrically connected with the non-color liquid crystal display screen.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: April 4, 2023
    Assignee: SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTD.
    Inventors: Xin Li, Wensheng Hong, Tiejun Lu
  • Patent number: 11609465
    Abstract: Embodiments of the present disclosure provide a display panel comprising an array substrate, wherein the array substrate comprises a common electrode with a low-level voltage, pixel circuit units and photosensitive transistors. The pixel circuit units are electrically connected to gate lines, data lines and the common electrode. And the photosensitive transistors are electrically connected with the pixel circuit units and the common electrode.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: March 21, 2023
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Shujhih Chen
  • Patent number: 11600244
    Abstract: A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: March 7, 2023
    Assignee: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Jon Scott Miller, Scott Daly, Mahdi Nezamabadi, Robin Atkins
  • Patent number: 11589507
    Abstract: Operating conditions corresponding to a harvesting operation being performed by a mobile harvesting machine are detected along with a priority of a first performance pillar metric relative to a second performance pillar metric. An operating characteristic of the mobile harvesting machine is detected and a performance pillar metric value is identified for the first performance pillar metric based on the detected operating characteristic. A performance limitation corresponding to the first performance pillar metric is identified based on the detected operating conditions and an aggressiveness setting is detected that is indicative of an operating settings change threshold.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: February 28, 2023
    Assignee: Deere & Company
    Inventors: Sebastian Blank, Mario L. Donini
  • Patent number: 11594166
    Abstract: Provided are a mura compensation circuit and a driving apparatus for a display applying the same. The mura compensation circuit includes a data remapping unit configured to remap display data of a pixel having mura so that an original gray scale range of the display data has a changed gray scale range and to provide the display data having the gray scale range in which the highest gray scale of the original gray scale range is lowered to a first gray scale of the gray scale range and the lowest gray scale of the original gray scale range is raised to a second gray scale by the remapping, and a mura compensation unit configured to perform mura compensations on the display data having the changed gray scale range and to provide the display data on which the mura compensations have been performed.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: February 28, 2023
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jun Young Park, Ji Won Lee
  • Patent number: 11593923
    Abstract: The present disclosure may improve contrast and deep black by efficiently controlling local dimming in consideration of the ratio of a black image data and the non-uniformity in the area between blocks.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: February 28, 2023
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Pil Jae Min, Kwon Chung
  • Patent number: 11574961
    Abstract: A novel display panel that is highly convenient or reliable is provided. The display panel includes a first pixel; the first pixel includes a first display element, a first color conversion layer, and a first absorption layer; the first display element emits first light; the first absorption layer overlaps with the first display element; and the first absorption layer absorbs the first light. Furthermore, the first color conversion layer is sandwiched between the first display element and the first absorption layer; the first color conversion layer converts the first light into second light; and the second light has a spectrum including a high proportion of light with a long wavelength compared with the first light.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: February 7, 2023
    Inventors: Tsunenori Suzuki, Yasuhiro Niikura, Tomoya Hirose, Satoshi Seo
  • Patent number: 11561441
    Abstract: A display apparatus is disclosed. The display apparatus includes a backlight configured to emit light; a first polarizing plate, disposed in front of the backlight, configured to polarize light emitted from the backlight in a first direction; and a plurality of display panels sequentially disposed in front of the first polarizing plate, wherein each of the plurality of display panels is configured to include a liquid crystal panel and a color filter disposed in front of the liquid crystal panel, and wherein a display panel disposed at a farthest distance from the first polarizing plate from among the plurality of display panels is configured to include a second polarizing plate that polarizes the light of the first direction in a second direction.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: January 24, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kangwon Jeon, Younggeol Kim, Jaehee Kwak, Kwangdon Kim, Youngjin Yoon, Jaesung Lee
  • Patent number: 11545073
    Abstract: A display device includes a display unit including a plurality of pixels coupled to a plurality of data lines, a plurality of scan lines, and a plurality of emission control lines, a controller for determining a width of a gate-off section of an emission control signal, which corresponds to a non-emission section of each of a plurality of frames belonging to a dimming period, in response to a dimming signal, and an emission driver for supplying the emission control signal in units of a plurality of consecutive pixel rows through the plurality of emission control lines.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: January 3, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Si Beak Pyo, Seung Kyu Lee, Min Seong Son
  • Patent number: 11545060
    Abstract: A display device includes: a plurality of pixels; a first pixel unit comprising a first portion of the plurality of pixels; a second pixel unit comprising a second portion of the plurality of pixels; and a data driver configured to supply a data voltage to the first pixel unit and the second pixel unit, wherein the data driver is configured to generate a data voltage to be supplied to the first pixel unit based on different gamma voltages even when the same grayscale is expressed according to a driving method, and the second pixel unit is configured to be driven or not driven according to the driving method.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: January 3, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soon Dong Kim, Joon Chul Goh, Bong Hyun You, Byung Ki Chun, Seong Heon Cho
  • Patent number: 11531241
    Abstract: A substrate in an array substrate includes a light aperture region and a winding region arranged around the light aperture region. On the substrate, an orthographic projection of a first winding in each first signal line is overlapped with an orthographic projection of a second winding in a corresponding second signal line. In this way, the distance between two adjacent signal lines in the winding region is larger, and the parasitic capacitance generated between them is smaller.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: December 20, 2022
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongqiang Zhang, Jingyi Xu, Hong Liu, Peng Liu, Peirong Huo, Aiyu Ding, Zhenhong Xiao, Bo Li, Bo Huang
  • Patent number: 11527592
    Abstract: The present disclosure relates to terminals and display screens. In an embodiment, a terminal includes a display area, the display area includes at least two display regions, the at least two display regions include a first display region and a second display region, a pixel density of the first display region is less than a pixel density of the second display region, and the pixel density of the first display region is less than or equal to a maximum pixel density of the first display region in a transparent state when the first display region is unlit.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: December 13, 2022
    Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.
    Inventors: Qi Shan, Tong Xu, Xuejing Zhu
  • Patent number: 11508326
    Abstract: A display apparatus includes a display panel including a plurality of pixels, each pixel of the plurality of pixels having a plurality of light-emitting devices; a storage configured to store a plurality of calibration matrices for each pixel of the plurality of pixels; a processor configured to identify a calibration matrix according to input data of the plurality of pixels and to calibrate modulation data corresponding to the input data based on the identified calibration matrix; and a panel driver configured to drive the display panel by applying a driving signal generated from the calibrated modulation data to the light-emitting devices of the plurality of pixels, wherein the plurality of calibration matrices includes a white calibration matrix and a color calibration matrix.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: November 22, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinmo Kang, Seungjin Baek, Hosik Sohn, Hoyoung Lee
  • Patent number: 11508319
    Abstract: A source driver capable of improving sensing accuracy even when a black image signal is provided to reduce motion blur during a sensing period for sensing signals of pixels of a display panel, and a display device including the same. The source driver includes an output buffer configured to output a source signal; a voltage terminal applied with a black image signal of a preset voltage level; a source output terminal connected to a data line of a display panel; and a switch circuit configured to connect one of an output terminal of the output buffer and the voltage terminal to the source output terminal, wherein the switch circuit connects the voltage terminal to the source output terminal during a black image insertion period of a sensing period in which a pixel of the display panel is sensed.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: November 22, 2022
    Assignee: Silicon Works Co., Ltd
    Inventors: Won Kim, Young Bok Kim
  • Patent number: 11508281
    Abstract: Provided are a mura compensation circuit which prevents a change in color of a pixel upon mura compensations for the pixel and a driving apparatus for a display applying the same. The mura compensation circuit includes a mura memory configured to store mura information including location information of a pixel having mura and compensation values for colors thereof, a gain adjustment unit configured to provide adjustment compensation values generated by applying an adjustment gain having an identical ratio to the compensation values for the colors of the pixel, and a mura compensation unit configured to receive display data of the colors of the pixel and to perform mura compensations on the display data of the colors of the pixel using the adjustment compensation values corresponding to the location information.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: November 22, 2022
    Assignee: Silicon Works Co., Ltd.
    Inventors: Jun Young Park, Ki Taek Kim
  • Patent number: 11495159
    Abstract: A display device including a plurality of sub-pixel arrays is provided. Each of sub-pixel arrays includes a plurality of first sub-pixels, at least one second sub-pixel and at least one third sub-pixel. The first sub-pixels have a first color and form a plurality of vertexes of a virtual quadrilateral. There is not any other first sub-pixels having the first color located in the virtual quadrilateral. The second sub-pixel has a second color different from the first color and is located in the virtual quadrilateral. The third sub-pixel has a third color different from the first color and the second color and is located in the virtual quadrilateral.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: November 8, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Hsueh-Yen Yang, Kai-Min Yang, Feng-Ting Pai
  • Patent number: 11488551
    Abstract: To increase the spatial resolution of a liquid crystal display (LCD) device, instead of emitting colors of an image (e.g., the three primary colors) in a single frame, the colors of an image are emitted sequentially. For example, if the colors of the image are red, blue, and green, the colors are emitted sequentially at a rate three times the desired frame rate of the display. The colors are emitted from a backlight unit (BLU) that produces pulses of colored light successively. By emitting colors sequentially, the number of subpixels in a pixel can be decreased or eliminated. Thus, among other advantages, the size of each pixel can decrease and the spatial resolution of the display device (e.g., pixels per inch) can increase.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: November 1, 2022
    Assignee: Meta Platforms Technologies, LLC
    Inventor: Rui Zhang
  • Patent number: 11482145
    Abstract: A curved display panel and a method for manufacturing the same are provided. The curved display panel includes a plurality of clock buses, the clock buses extend along a first direction and are arranged along a second direction, the widths of the plurality of clock buses are different in the second direction, so that capacitance values between several clock buses and a clock signal line disconnected from the several clock buses are the same.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: October 25, 2022
    Assignee: HKC Corporation Limited
    Inventor: Beizhou Huang
  • Patent number: 11455962
    Abstract: The present application discloses a driving method and driving system of a driving module, and a display device. A driving process of the display panel includes: receiving a first color signal and converting it into a first HSV (hue, saturation, value) spatial signal; adjusting a first saturation signal to obtain a second saturation signal; using a second color signal converted from the second saturation signal to drive the display panel. A driving process of the backlight module includes: receiving the first color signal to obtain a light source adjustment coefficient; determining the minimum color light source and using the light source adjustment coefficient to adjust the minimum color light source to obtain a fourth brightness value; driving the minimum color light source using the fourth brightness value.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: September 27, 2022
    Assignees: CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventor: Jianfeng Shan
  • Patent number: 11450261
    Abstract: An image display system increases the data volume of a control signal in a frame of analog image so as to process an analog image in real time. A method for increasing the data volume of the control signal, which is used in the image display system, includes increasing the time for transmitting the control signal, changing an encoding method of the control signal to increase a data volume which is transmitted in unit time or outputting an analog image signal and the control signal at the same time. Therefore, the data volume of the control signal in a frame of image can be increased.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: September 20, 2022
    Assignee: AVISONIC TECHNOLOGY CORPORATION
    Inventors: Kuo-Ching Hung, Meng-Chun Lin, Han-Min Cho, Sheng-Fuu Lin
  • Patent number: 11386863
    Abstract: An output circuit of a driver includes a plurality of output nodes, a first output buffer group and a multiplexer. The first output buffer group is configured to output data to the plurality of output nodes, wherein each output buffer in the first output buffer group is configured to output data to at least two output nodes among the plurality of output nodes. The multiplexer, coupled between the plurality of output nodes and the first output buffer group, is configured to select to couple each output buffer in the first output buffer group to one of the plurality of output nodes.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: July 12, 2022
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Hsiu-Hui Yang, Yen-Cheng Cheng, Chin-Hung Hsu
  • Patent number: 11386829
    Abstract: A display panel and its drive method, and a display device are provided in the present disclosure. The method for driving the display panel includes refreshing a first-color picture N times in one frame. A time interval between every two adjacent refreshings of the N times of the refreshing is T1 for the first-color picture, T1=T2/N, T2 is a duration of the one frame, N>1, and N is a positive integer. The first-color picture may be refreshed multiple times in the one frame, and the multiple refreshing processes of the first-color picture may be evenly distributed, which may reduce each picture retention duration after the first-color picture is refreshed. Furthermore, before the human eyes are not able to recognize the brightness decrease of a previous first-color picture, a next first-color picture is refreshed, thereby effectively improving the picture flickering phenomenon of the display panel.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: July 12, 2022
    Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Nana Xiong, Jujian Fu
  • Patent number: 11386860
    Abstract: According to one embodiment, a display device includes a display panel including a display area where first drive areas and second drive areas are alternately disposed, and display function layers which include first display function layers and second display function layers and which are changed to a transparent state and a scattering state, and a control unit. The control unit applies a drive voltage to the first display function layers, in a first field period. The control unit applies the drive voltage to the second display function layers, in a second field period. A polarity of the drive voltage in the first field period is different from a polarity of the drive voltage in the second field period.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: July 12, 2022
    Assignee: Japan Display Inc.
    Inventor: Hirofumi Kato
  • Patent number: 11380714
    Abstract: An array substrate, a display panel and a display device are provided. The array substrate includes a plurality of gate lines and a plurality of data lines. The plurality of gate lines and the plurality of data lines define rows of sub-pixel regions, each of the sub-pixel regions includes two thin film transistors and a pixel electrode, and the two thin film transistors are both connected with the pixel electrode. Gate electrodes of two thin film transistors in an (n)th row of sub-pixel regions of the rows of sub-pixel regions are respectively connected with an (n)th gate line and an (N+1)th gate line of the plurality of gate lines, K?n?1, n and K are integers, and K is an amount of rows of the sub-pixel regions.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: July 5, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Bin Zhao, Hanqing Liu, Xuchen Yuan, Yong Peng, Huiying Li
  • Patent number: 11353631
    Abstract: A display device and a method of manufacturing the same are provided. The display device includes a display panel including a series of pixels, each pixel including N sub-pixels, where N is an integer of 2 or greater; and a lens array on a surface of the display panel, the lens array including a series of lenses, wherein each of the lenses overlaps with M sub-pixels, where M is an integer greater than N.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: June 7, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ju Hwa Ha, Jae Joong Kwon, Beom Shik Kim, Joo Woan Cho, Su Jung Huh
  • Patent number: 11335253
    Abstract: An optical compensation method for a display panel and an optical compensation device are provided. The optical compensation method for the display panel includes selecting a pixel block to be compensated in an edge region; and acquiring a pixel compensation parameter of at least one pixel block in a main body region as a pixel compensation parameter of the pixel block to be compensated.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: May 17, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lixia Shen, Chang Zhang, Zhiguang Zhang
  • Patent number: 11335257
    Abstract: A display unit includes sub-pixels that each have a light emitting element, a capacitor, a first transistor that writes a video signal potential to the capacitor, and a second transistor that provides a drive current to the light emitting element based on a voltage stored in the capacitor. Each first transistor has a channel width Wand channel length L, such that a width to length ratio is W/L. The width to length ratio W1/L1 of one of the first transistors is different than a width-to-length ratio W2/L2 of at least one other of the first transistors.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: May 17, 2022
    Assignee: Sony Group Corporation
    Inventor: Tetsuo Minami
  • Patent number: 11328648
    Abstract: A display panel is disclosed, including a plurality of data lines, a plurality of groups of gate lines and a plurality of pixel units. Each group of gate lines includes at least three gate lines. The pixel units are arranged in an array, each pixel unit includes a plurality of subpixels, and each subpixel includes at least two sub-subpixels. Each row of subpixels is configured to be controlled by a corresponding group of gate lines, and each column of subpixels is configured such that the at least two sub-subpixels receive a data signal from a corresponding data line under a control of each group of gate lines. A display device including the display panel is also disclosed.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: May 10, 2022
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Duo Zhang, Yinghao Zhang, Feng Jiang, Yongquan Lu, Weimeng Zhang, Xuru Zhang, Yanjie Zhang, Qian Wang
  • Patent number: 11323590
    Abstract: The image processing apparatus of the present invention includes: a generation unit configured to generate a sharpness recovery amount for recovering degradation of a spatial frequency response from a target image; and a line width correction unit configured to perform line width correction processing for the target image based on the sharpness recovery amount, and the line width correction unit corrects a line width in accordance with a sign of a pixel whose absolute value of the sharpness recovery amount is large in a case where signs of the sharpness recovery amounts reverse between adjacent pixels of the target image.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: May 3, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ryosuke Otani, Hisashi Ishikawa
  • Patent number: 11284193
    Abstract: An audio enhancement system that is incorporated into displays used for artwork and educational items. The system detects when an individual is in proximity of the displayed work, and outputs audio information related to the artwork or educational item if in question. Audio data can be stored locally or in a remote system.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: March 22, 2022
    Inventor: Laurie Cline