Intensity Or Color Driving Control (e.g., Gray Scale) Patents (Class 345/690)
  • Patent number: 12016213
    Abstract: An electronic device is provided. The electronic device includes a housing including a front surface and a rear surface facing, a display exposed through a portion of the front surface, an illuminance sensor disposed between the display and the rear surface to overlap an area of the display when viewed from above the front surface, a processor positioned inside the housing and operatively connected with the display, and a memory positioned inside the housing and operatively connected with the processor, wherein the memory stores instructions configured to, when executed, enable the processor to receive first illuminance data measured using the illuminance sensor, identify display parameter information associated with the first illuminance data, obtain second illuminance data based on at least a part of the display parameter information and the first illuminance data, and adjust a brightness of the display based on at least a part of the second illuminance data.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: June 18, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeongho Cho, Jongah Kim, Heewoong Yoon, Donghan Lee, Kyusung Kim, Chanhyoung Park, Eunsook Seo, Taewoong Lee, Euntaek Jang
  • Patent number: 12014677
    Abstract: Light-emitting diode (LED) packages and, more particularly, LED packages with transformation and shifting of pulse width modulation (PWM) signals and related methods are disclosed. Discrete LED packages are arranged for cascade communication. Each LED package includes one or more LED chips, and each LED package is separately capable of receiving communication from a data stream, controlling operation of the one or more LED chips, and performing transformation and shifting of received PWM signals. Transformation may include compression and/or decompression of received PWM signals by each LED package to provide increased accessible dynamic range. After transformation, LED packages are capable of shifting transformed values to compensate for turn-on delay of LED chips, thereby reducing light drop-off problems at low intensity levels.
    Type: Grant
    Filed: April 10, 2023
    Date of Patent: June 18, 2024
    Assignee: CreeLED, Inc.
    Inventor: Christopher P. Hussell
  • Patent number: 12008931
    Abstract: A compensation method of a display panel is provided and comprises: acquiring position information of a first sub-pixel; acquiring position information of a second sub-pixel located in the same pixel unit as the first sub-pixel when the position information of the first sub-pixel matches position information of an abnormal sub-pixel; acquiring position information of a third sub-pixel that is adjacent to the second sub-pixel and emits light of the same color; finally, setting a compensation parameter of the third sub-pixel as a compensation parameter of the second sub-pixel.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: June 11, 2024
    Assignees: HUIZHOU CHINA STAR OPTOELECTRONICS DISPLAY CO., LTD., SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wei He
  • Patent number: 12008954
    Abstract: A method for compressing Demura compensation value including: acquiring original compensation values of a target panel; inputting the original compensation values into a spatial domain sampling model, performing a down-sampling to obtain spatial domain sampling values, inputting the original compensation values into a prediction mode overall model, and performing a numerical processing to obtain a plurality of mode characteristic values; performing a data reconstruction on the spatial sampling values and the plurality of mode characteristic values to obtain a reconstructed value set; performing a syntactic encoding on the spatial sampling values and the plurality of mode characteristic values to obtain a syntactic element code set; performing a mode selection according to the reconstructed value set and the syntactic element code set to obtain an optimal prediction mode; and acquiring and outputting a syntactic element code corresponding to the optimal prediction mode to obtain a Demura compensation value com
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: June 11, 2024
    Assignee: GLENFLY TECH CO., LTD.
    Inventors: Ao Mei, Chuanchuan Zhu, Wei Wang
  • Patent number: 12008952
    Abstract: A pixel includes: a light-emitting element including an anode and a cathode, a first transistor including a first and a second electrode and a gate electrode connected with a first node, a third transistor connected between the second electrode of the first transistor and the first node and including a gate electrode connected with a first scan line, a sixth transistor connected between the second electrode of the first transistor and the anode and including a gate electrode connected with a first emission line, and a seventh transistor connected between the anode and an initialization voltage line and including a gate electrode connected with a second scan line. During an initialization period, the third, sixth, and seventh transistors are turned on such that an initialization voltage from the initialization voltage line is transferred to the gate electrode of the first transistor.
    Type: Grant
    Filed: July 20, 2023
    Date of Patent: June 11, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin-Wook Yang, Yu-Chol Kim, Donggyu Lee, Jae-Hyeon Jeon
  • Patent number: 12001634
    Abstract: A display apparatus capable of performing authentication in a short time is provided. The display apparatus includes a first display portion where first pixels are arranged in a matrix, a second display portion where second pixels are arranged in a matrix, first and second row driver circuits, and a control circuit. Each of the first and the second pixels includes a light-receiving element. The first and the second pixels each have a function of acquiring imaging data by using the light-receiving element. The first and the second row driver circuits each have a function of selecting the first and the second pixels which read out the imaging data. The control circuit has a function of sequentially driving the first and the second row driver circuits in a first mode, and has a function of driving one of the first and the second row driver circuits on the basis of the imaging data in the second mode.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: June 4, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Yoshimoto, Kazunori Watanabe, Susumu Kawashima, Ryo Yamauchi, Motoharu Saito, Koji Kusunoki, Shunpei Yamazaki
  • Patent number: 12003859
    Abstract: A method of adjusting brightness of a foreground video displayed over a background in a user device is provided. The method includes determining enhancement factors for background sections in a background frame of the background, determining an enhancement mask for each foreground sub-frame of the foreground video based on enhancement factor of corresponding background section and determining enhanced brightness values for each foreground pixel in the foreground video based on the enhancement mask. The method of the disclosure provides real-time, clear and distinct viewing of an enhanced foreground video in varying brightness conditions of the background sections.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: June 4, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sawan Dineshbhai Kaulic, Sai Teja Kancharlapalli
  • Patent number: 11990069
    Abstract: A display driver includes an amplifier circuit that outputs an output current based on a differential signal indicating a difference between a gradation voltage corresponding to a video signal and an output voltage to a source line of a display panel, thereby supplying the output voltage to the source line. An output current detection circuit generates a mirror current by copying the output current, and outputs an output current detection signal representing the mirror current. A failure determination circuit determines whether a failure is occurring or has occurred in the source line or not by comparing the level of the output current detection signal with a prescribed threshold value. The output current detection circuit includes a transistor that generates a mirror current by receiving the differential signal at a gate thereof, and a variable resistance that generates an output current detection signal upon receiving the generated mirror current.
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: May 21, 2024
    Assignee: LAPIS TECHNOLOGY CO., LTD.
    Inventor: Hiroyoshi Ichikura
  • Patent number: 11990076
    Abstract: This application relates to the field of communications technologies, and provides ambient light and optical proximity detection methods, a photographing method, and a terminal, so that an entire display screen of the terminal is used to display a user interface, and this improves user experience. The method specifically includes: controlling, by a terminal, some areas of a display screen to display a black picture for a plurality of times; and when the areas display the black picture, obtaining an intensity of ambient light detected by an ambient light sensor to adjust luminance of the display screen.
    Type: Grant
    Filed: May 24, 2023
    Date of Patent: May 21, 2024
    Assignee: Honor Device Co., Ltd.
    Inventors: Chenlong Li, Hongxia Gui, Xin Zhao
  • Patent number: 11990077
    Abstract: 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: Grant
    Filed: December 20, 2022
    Date of Patent: May 21, 2024
    Assignee: AUO Corporation
    Inventor: Chun-Han Tai
  • Patent number: 11978395
    Abstract: A display panel and a display device are disclosed. The display panel includes a display substrate, a plurality rows of first pixel driving circuits, a plurality rows of second pixel driving circuits, and a plurality of first reset signal lines; the plurality of reset signal lines comprises a plurality of first reset signal lines and a plurality of second reset signal lines, each of the first reset signal lines is only electrically connected to one row of the first pixel driving circuits; each of the second reset signal lines is electrically connected to one row of the first pixel driving circuits and at least one row of the second pixel driving circuits.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: May 7, 2024
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Jun Zhang, Tao Chen
  • Patent number: 11978135
    Abstract: A method for recommending a color of a home appliance is provided. The method includes providing a plurality of panel graphic objects corresponding to each of a plurality of panels of the home appliance, providing a plurality of color graphic objects each representing a plurality of colors, receiving a selection for one of the plurality of color graphic objects, applying a color represented by the selected color graphic object to one of the plurality of panel graphic objects, and providing information on a color scheme corresponding to the color represented by the selected color graphic object.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: May 7, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jidam Hong, Seongjun Kim, Sohee Kim, Jieun Kim, Hyejin Kim, Jaeyoung Ro, Soyoung Yun, Sunhye Lee, Yejin Jeon, Kibeom Hwang
  • Patent number: 11978385
    Abstract: This disclosure provides various techniques for providing fine-grain digital and analog pixel compensation to account for voltage error across an electronic display. By employing a two-dimensional digital compensation and a local analog compensation, a fine-grain and robust pixel compensation scheme may be provided to the electronic display.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: May 7, 2024
    Assignee: Apple Inc.
    Inventors: Yao Shi, Wei H Yao, Hyunwoo Nho, Jie Won Ryu, Kingsuk Brahma, Li-Xuan Chuo, Hyunsoo Kim, Myungjoon Choi, Ce Zhang, Alex H Pai, Shengkui Gao, Rungrot Kitsomboonloha, Shatam Agarwal, Vehbi Calayir, Chaohao Wang, Steven N Hanna, Pei-En Chang
  • Patent number: 11972725
    Abstract: A method for image display in a display apparatus is provided. The method includes displaying an image in a respective subpixel in an image display phase. In a sensing phase subsequent to the image display phase, the method further includes providing an initial voltage signal to an anode of a respective light emitting element in the respective subpixel for a first period of time; allowing the anode of a respective light emitting element to discharge for a second period of time, upon discontinuation of the initial voltage signal; obtaining a residual voltage signal at the anode of the respective light emitting element at an end of the second period of time by a sensing sub-circuit of a respective pixel driving circuit; and transmitting the residual voltage signal to an integrated circuit.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: April 30, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Hongjun Zhou, Feng Wei, Cong Liu
  • Patent number: 11967280
    Abstract: A display device includes a display panel including a plurality of pixels connected to a data line and a gate line; a data driver configured to apply a data voltage to the data line for an active period and to apply a parking voltage to the data line for a blank period for which the data voltage is not applied; a gate driver for applying a scan signal to the gate line; a light-emission signal generator for applying a light-emission signal to the plurality of pixels; and a controller configured to operate the display device based on a plurality of bands, wherein the plurality of bands have different highest target luminance levels based on operating environments of the display device, wherein in at least one of the plurality of bands, a duty ratio of the light-emission signal is smaller than a duty ratio of the parking voltage. Thus, parking voltage mura is reduced and uniformity of the display panel is improved to improve image quality.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: April 23, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Hyunkyo Lim, Dongsup Sim
  • Patent number: 11967274
    Abstract: A display substrate includes a first display region, a second display region, and a frame region. Light-emitting devices include first light-emitting devices in the first display region and second light-emitting devices in the second display region. Pixel drive circuits include first pixel drive circuits in the frame region and second pixel drive circuits in the second display region. The first pixel drive circuits are electrically connected to the first light-emitting devices. The second pixel drive circuits are electrically connected to the second light-emitting devices. Each of shift registers cascaded in the frame region is connected to the first pixel drive circuits and the second pixel drive circuits which are electrically connected to one row of first light-emitting devices and the same one row of second light-emitting devices respectively.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: April 23, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qiwei Wang, Kaipeng Sun, Jianchang Cai, Chao Wu, Yuanjie Xu, Yao Huang
  • Patent number: 11961437
    Abstract: The embodiment of the present disclosure provides a display panel and a display apparatus. The display panel includes a long side, a short side, a display pixel, a scan driving circuit, a drive circuit board, and chips on film. one end of each chip on film is coupled to the short side, and another end is coupled to the drive circuit board. The drive circuit board and the scan driving circuit of the embodiment of the present disclosure are respectively located on the short side and the long side of the display panel to improve the problem that the font is easily deformed during display.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: April 16, 2024
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Deyan Li, Jianhong Chen, Peng Du, Xiaoming Chen
  • Patent number: 11963407
    Abstract: Provided is an organic light-emitting diode display substrate, including: a source/drain layer, a planarization layer and an anode layer which are laminated in sequence, wherein the source/drain layer includes at least one pair of first signal lines; the anode layer includes a common power line, wherein the common power line is provided with vent holes; overlapping areas between two first signal lines in each pair of the first signal lines and a projection pattern of the vent hole are equal, the overlapping area being greater than 0, wherein the projection pattern of the vent hole is a pattern of an orthographic projection of the vent hole in the common power line on the source/drain layer. A display panel and a display device are also provided.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: April 16, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Jiangnan Lu, Guangliang Shang, Can Zheng, Yu Feng, Libin Liu, Jie Zhang, Mei Li
  • Patent number: 11956573
    Abstract: An image processing device for a projection system includes an image generation unit and a brightness acquisition unit, and the image generation unit generates data for projecting the specific image, as a first portion in the first data for display, which corresponds to the first superimposed region, generates a second portion in the first data for display, which corresponds to the first non-superimposed region based on first input image data in the data of the projection target image, which corresponds to the first non-superimposed region, and the second brightness, and generates a third portion in the second data for display, which corresponds to the second superimposed region based on second input image data in the data of the projection target image, which corresponds to the second superimposed region, and the first brightness.
    Type: Grant
    Filed: May 19, 2023
    Date of Patent: April 9, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Kazuki Ishida, Akihiro Ishizuka, Tomonori Masuda, Kazuki Inoue
  • Patent number: 11948487
    Abstract: The present disclosure provides a current mirror circuit including a first transistor configured to be supplied with a data current from a data driving circuit; a second transistor configured to drive a light emitting diode by mirroring the data current transferred to the first transistor; a capacitor disposed between the first transistor and the second transistor and configured to store a voltage of a gate terminal of the second transistor therein; and a first switch disposed between the first transistor and the second transistor and configured to adjust an input current of the gate terminal of the second transistor.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: April 2, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Ji Hwan Kim, Sang Suk Kim, Jang Su Kim
  • Patent number: 11942025
    Abstract: A display device includes a substrate, a plurality of pixel electrodes on the substrate and spaced apart from each other, a plurality of light-emitting elements on the plurality of pixel electrodes, respectively, and a common electrode layer on the plurality of light-emitting elements and to which a common voltage is applied. The plurality of light-emitting elements include a first light-emitting element that is configured to emit first light according to a first driving current and a second light-emitting element that is configured to emit second light according to a second driving current. An active layer of the first light-emitting element is the same as an active layer of the second light-emitting element.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: March 26, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Wan Kim, Seung Geun Lee, Sang Jo Kim, Su Jeong Kim, Young Jin Song, Byung Ju Lee
  • Patent number: 11942016
    Abstract: A display device includes: a gain provider configured to set a time point elapsed by a set period from a time point at which a first region of an input image is detected as a still region, as a set time, and to gradually decrease a gain value from the set time; and a grayscale converter configured to generate an output image by applying the gain value to the first region and a second region including a peripheral region of the first region among the input image, wherein the gain provider is configured to set the set period differently according to size of grayscale values in the first region.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: March 26, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee Sook Park, Ki Hyun Pyun
  • Patent number: 11935454
    Abstract: A brightness compensation method and device of a display panel, a readable storage medium, and a display device are provided. A display panel is divided into at least one region. The region includes a to-be-corrected region. Wherein, the brightness compensation method includes: using a photographing component to photograph the display panel displaying a preset grayscale image; obtaining an image of the to-be-corrected region under a preset grayscale; obtaining brightness data of the to-be-corrected region, wherein the regional viewing angle is an included angle between a connection line of an optical center of a lens of the photographing component connecting to a center of the at least one region, and a normal of the display panel; correcting brightness of the to-be-corrected region to obtain corrected brightness data of the to-be-corrected region; and performing brightness compensation on the display panel according to the corrected brightness data of the to-be-corrected region.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: March 19, 2024
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Ling Xu, Xinhong Chen
  • Patent number: 11929014
    Abstract: A display device includes a display panel which displays an image based on input image data, a driving controller which generates a voltage control signal for adjusting a first power voltage applied to the display panel in an (N+M)-th frame based on a maximum grayscale value of the input image data of an N-th frame, where N is a positive integer, and M is a positive integer, and a power voltage generator which senses a power current applied to the display panel in the (N+M)-th frame, generates a second power voltage based on the voltage control signal, and controls a voltage level of the first power voltage based on the second power voltage and a current level of the power current.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: March 12, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kihyun Pyun, Sung-Mo Yang, Seungho Park, Dae-Sik Lee
  • Patent number: 11929020
    Abstract: A display device includes a display panel, a power supply unit, a voltage adjustment signal provider, and a data adjustment signal provider. The display panel includes a first display area and a second display area. The power supply unit is configured to provide a first initialization voltage and a second initialization voltage to the display panel. The voltage adjustment signal provider is configured to provide an adjustment signal to the power supply unit for applying an adjustment voltage to the second initialization voltage when the second display area is driven at a frequency lower than at least one of a predetermined frequency and a driving frequency of the first area. The data adjustment signal provider is configured to provide a data adjustment signal for adjusting gray levels of some pixels included in the first display area when the adjustment voltage is applied to the second initialization voltage.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: March 12, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Changnoh Yoon, Sangan Kwon, Soon-Dong Kim, Taehoon Kim
  • Patent number: 11929043
    Abstract: A detection circuit is used for a display controller configured to generate a plurality of backlight data according to a plurality of image data. The detection circuit includes a resize circuit and a comparison circuit. The resize circuit is configured to receive the plurality of image data and convert the plurality of image data into a plurality of region data. The comparison circuit, coupled to the resize circuit, is configured to: receive at least one first region data from the resize circuit; receive at least one first backlight data corresponding to the at least one first region data from the display controller; compare the at least one first region data with the at least one first backlight data to generate a comparison result; and output a control signal to control an output setting of the display controller according to the comparison result.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: March 12, 2024
    Assignee: NOVATEK Microelectronics Corp.
    Inventor: Chun-Hsiang Wang
  • Patent number: 11922864
    Abstract: A display device includes a controller, a power management circuit and N display modules. Each of the N display modules includes M driving circuits, and M display arrays respectively connected to the M driving circuits. Each of the M driving circuits is configured to drive a display array connected to the driving circuit, and each of the display arrays includes at least one indicator light. The power management circuit is configured to output a voltage determined by the voltage control signal to the display arrays to supply power to the display array. M driving circuits in each of the display modules are cascaded through serial control lines. The controller is configured to address M driving circuits and read data of M driving circuits through the serial control lines, and send information to the driving circuits through the sharing data line to control the driving circuits and the indicator light.
    Type: Grant
    Filed: March 6, 2023
    Date of Patent: March 5, 2024
    Assignee: XIAMEN XM-PLUS TECHNOLOGY CO., LTD
    Inventor: Che-Wei Wu
  • Patent number: 11922902
    Abstract: An image processor of a display device includes: an image sticking object detector which classifies a class of an input image data and outputs inference data including image sticking object information based on the classified class; a memory which stores previous inference data; a post-processor which calculates accumulative inference data, based on the inference data and the previous inference data received from the memory and generates corrected inference data, based on the accumulative inference data; and an image sticking prevention part which outputs an image data subjected to an image sticking prevention process, based on the corrected inference data.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: March 5, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Satoshi Uchino, Kazuhiro Matsumoto, Masahiko Takiguchi, Yasuhiko Shinkaji
  • Patent number: 11915633
    Abstract: Embodiments of the present disclosure is directed to a method of controlling screen color temperature. The method includes: acquiring ambient light parameters according to a preset time interval, obtaining an ambient relative color temperature value corresponding to the ambient light parameter acquired at each acquisition time point, performing a weighted average process on the ambient relative color temperature value corresponding to the ambient light parameter acquired at each acquisition time point to obtain a target ambient color temperature value, determining a target screen color temperature value corresponding to the target ambient color temperature value and further a current screen color temperature value, and changing a color temperature value of the screen from the current screen color temperature value to the target screen color temperature value according to the screen color temperature value change time.
    Type: Grant
    Filed: June 20, 2022
    Date of Patent: February 27, 2024
    Assignee: HUIZHOU TCL MOBILE COMMUNICATION CO., LTD
    Inventors: Bin Liang, Sheng Zhang
  • Patent number: 11915669
    Abstract: The disclosed technology provides solutions for enhancing a user's experience of content playback, such as that of a user that is viewing multimedia content, such as a music video, on a mobile device. In some aspects, a process of the disclosed technology can include steps for receiving a mean energy curve associated with a sound file and dynamically modulating a brightness level of a displayed content on a display based on audio properties of the mean energy curve whereby an average brightness experienced over playback of the displayed content is equal to a default brightness of the display.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: February 27, 2024
    Assignee: SoClip!
    Inventor: Christophe Vaucher
  • Patent number: 11906731
    Abstract: The invention relates to a waveguide display element comprising a waveguide body and an in-coupling grating (21) arranged to the waveguide body. The in-coupling grating (21) is configured to couple incoming light into the waveguide body into two separate directions (26A, 26B) using opposite diffraction orders (IC:+1, IC:?1) for splitting the field of view of the incoming light. Further the in-coupling grating (21) is configured, typically by setting its period suitably short, such that said coupling takes place only at wavelengths below a threshold wavelength residing in the visible wavelength range. The invention also relates to a waveguide stack (51 A, 51 B, 51 C).
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: February 20, 2024
    Assignee: DISPELIX OY
    Inventors: Kasimir Blomstedt, Juuso Olkkonen
  • Patent number: 11908433
    Abstract: A display device includes: a pixel part partitioned into blocks; a scale factor provider which calculates a first load value of input image data for the pixel part, calculates a second load value of the input image data for each block, and generates a scale factor based on the first and second load values; and a timing controller which generates image data by scaling gray values of the input image data based on the scale factor. The scale factor provider generates a first scale factor for commonly controlling the gray values for the blocks based on the first load value, when the first load value is greater than or equal to a reference load value, and generates a second scale factor for controlling gray value for each block based on the first and second load values, when the first load value is less than the reference load value.
    Type: Grant
    Filed: April 13, 2023
    Date of Patent: February 20, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Hyun Pyun, Jang Mi Lee, Eun Jin Choi
  • Patent number: 11908387
    Abstract: A display with multiple light sources sharing a device driver is disclosed. In one embodiment of the present invention a display includes a first device driver, a first light source, a second light source and a first light-source selection circuit which is coupled to the first device driver, the first light source and the second light source. The first light-source selection circuit is configured to pair the first device driver with the first light source during a first time interval and to pair the first device driver with the second light source in a second time interval.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: February 20, 2024
    Assignees: Syndiant, Inc., XDMicro (Zhongshan) Optoelectronics Semiconductor Co., LTD
    Inventors: Chun Chiu Daniel Wong, Craig Michael Waller
  • Patent number: 11899870
    Abstract: In a liquid crystal display device, a second substrate includes a detection electrode of a touch panel, pixels include pixel electrodes and counter electrodes, the counter electrodes are divided into a plurality of blocks, the counter electrodes of the divided blocks are provided in common to the pixels on a plurality of display lines being side by side, the counter electrodes of the divided blocks are used as scanning electrodes of the touch panel as well, the liquid crystal display device includes a semiconductor chip configured to supply a counter voltage and a touch panel scanning voltage to the counter electrodes of the divided blocks, the semiconductor chip includes a first terminal group formed on a side of a display area side configured by the plurality of pixels.
    Type: Grant
    Filed: February 21, 2023
    Date of Patent: February 13, 2024
    Assignee: Japan Display Inc.
    Inventor: Shuuichirou Matsumoto
  • Patent number: 11900573
    Abstract: The invention relates to a method and device for generating an overview contrast image of a sample carrier in a microscope, which images a sample arranged on the sample carrier. The sample carrier on which the sample is located is illuminated in transmitted light from a two-dimensional illumination array, which has individually switchable single light sources and illuminates the sample volume in transmitted light, and a processing unit, which activates and reads out the camera in order to record multiple different raw overview images of the sample carrier.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: February 13, 2024
    Assignee: Carl Zeiss Microscopy GmbH
    Inventors: Manuel Amthor, Daniel Haase
  • Patent number: 11893947
    Abstract: A display device includes a display panel including a plurality of pixels, an image data corrector configured to generate a corrected image data by adjusting an image data and a data driver providing data signals to the plurality of pixels based on the corrected image data. The image data corrector divides the display panel into a plurality of unit areas, and adjust the image data for a unit area among the plurality of unit areas by using a full image load for the entire display panel, a first image load for the unit area, and a second image load for peripheral unit areas surrounding the unit area among the plurality of unit areas.
    Type: Grant
    Filed: March 9, 2023
    Date of Patent: February 6, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jaehoon Lee, Deokho Kang, Jong Wook Kim, Youngwoon Choi
  • Patent number: 11893959
    Abstract: An electronic device may include: a display having at least one hole disposed in at least a part thereof such that light from the outside can be transmitted therethrough; a light-emitting element disposed under the display and configured to output a first infrared ray to the outside; a first light-receiving element disposed under the display at a position corresponding to the at least one hole, and configured to receive a second infrared ray transmitted from the outside; a second light-receiving element disposed under the display at a position where light from the outside is shielded; and at least one processor configured to, based on that a first sensing value according to the second infrared ray, output from the first light-receiving element, satisfies a first specified condition, while the first infrared ray is output: based on that a second sensing value output from the second light-receiving element does not satisfy a second specified condition, identify that a proximate object exists, and based on that
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: February 6, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeonsoo Kim, Youngjae Kim, Minho Lee, Jaekwang Lee
  • Patent number: 11893958
    Abstract: An information processing device includes a processor configured to receive a brightness setting for each region of a deformable continuous display surface through a user instruction.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: February 6, 2024
    Assignee: FUJIFILM Business Innovation Corp.
    Inventor: Kengo Tokuchi
  • Patent number: 11887525
    Abstract: A display device includes PAM data lines receiving PAM and PWM data voltages, and sub-pixels connected to the PAM and PWM data lines. A sub-pixel includes a light emitting element, a first pixel driver to supply a control current according to one of the PAM data voltages to a node, a second pixel driver to generate a driving current according to one of the PWM data voltages, and a third pixel driver to adjust a period during which the driving current is supplied to the light emitting element according to a voltage of the node. A peak current value of the driving current when the sub-pixel emits a light corresponding to a low gray level region is smaller than a peak current value of the driving current when the sub-pixel emits a light corresponding to a high gray level region higher than the low gray level region.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: January 30, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Hwan Hwang, Hyun Joon Kim, Kye Uk Lee, Jun Ki Jeong
  • Patent number: 11889236
    Abstract: A digital PSF for use in a dual modulation display. The invention allows the use of less than optimal point spread (PSF) functions in the optics between the pre-modulator and primary modulator of a dual modulation projection system. This technique uses multiple halftones per frame in the pre-modulator synchronized with a modified bit sequence in the primary modulator to produce a compensation image that reduces the errors produced by the sub-optimal PSF. The invention includes the application to dual modulation and dual modulated 3D viewing systems.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: January 30, 2024
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Martin J. Richards
  • Patent number: 11889726
    Abstract: A display device, includes: a display area including an upper side, a lower side, a left side, a right side, and inclined corner portions where the upper, lower, left, and right sides meet; a demultiplexing circuit unit adjacent to the lower side of the display area and the corner portion connected thereto; and a scan transmission line which extends toward the display area from an outer side of the left side and overlaps with the demultiplexing circuit unit outside the corner portion, wherein the demultiplexing circuit unit includes a demultiplexer transistor, and the scan transmission line is formed of a different conductive layer from an electrode of a demultiplexer transistor.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: January 30, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Han Sung Bae, Se Ho Kim, Sun Ja Kwon, Dong Wook Kim, Jun Yong An, Sang Moo Choi, Jun Won Choi
  • Patent number: 11875717
    Abstract: Display panel, integrated chip and display apparatus are provided. Display panel includes pixel circuit including drive module, bias adjustment module and initialization module, and light emitting element. Drive module configured to provide drive current to light emitting element, and includes drive transistor; bias adjustment module configured to provide bias adjustment signal to first pole or second pole of drive transistor; initialization module configured to provide initialization signal to light emitting element. Operation modes of display panel include first mode and second mode, and brightness level of display panel in first mode greater than that in second mode. Bias adjustment signal Vs1 in first mode and bias adjustment signal Vs2 in second mode satisfies Vs1?Vs2; and/or, initialization signal Vi1 in first mode and initialization signal Vi2 in second mode satisfies Vi1?Vi2. With embodiments of present disclosure, display uniformity of display panel can be improved.
    Type: Grant
    Filed: July 4, 2022
    Date of Patent: January 16, 2024
    Assignee: Hubei Yangtze Industrial Innovation Center Of Advanced Display Co., Ltd.
    Inventors: Yuheng Zhang, Jiemiao Pan
  • Patent number: 11869409
    Abstract: An image enhancement system in a vehicle includes a forward looking light sensor, an ambient light sensor, and an electronic control unit. The forward looking light sensor is configured to sense a forward looking light seen by a driver to generate a forward luminance value. The ambient light sensor is configured to sense an ambient light seen by the driver to generate an ambient luminance value. The electronic control unit is configured to calculate a display luminance control value based on the forward luminance value and the ambient luminance value, analyze a video image in a video input signal to determine multiple shades of gray within the video image, adjust the shades of gray in the video image based on the forward luminance value, the ambient luminance value, and the display luminance control value to generate the enhanced video image, and present the enhanced video image to the display.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: January 9, 2024
    Assignee: Visteon Global Technologies, Inc.
    Inventor: Paul Fredrick Luther Weindorf
  • Patent number: 11854469
    Abstract: A display device includes a display panel including a plurality of pixels, and a panel driver configured to drive the display panel. The panel driver receives input image data at a variable input frame frequency, stores the variable input frame frequency as a previous frame frequency by monitoring the variable input frame frequency, determines a reference frequency based on the previous frame frequency, determines a reference luminance as a luminance of the display panel at the reference frequency, and adjusts data voltages applied to the plurality of pixels such that a luminance of the display panel at the variable input frame frequency becomes the reference luminance.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: December 26, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Kyung-Hun Lee
  • Patent number: 11836850
    Abstract: Certain embodiments involve visually augmenting images of three-dimensional containers with virtual elements that fill one or more empty regions of the three-dimensional containers. For instance, a computing system receives a first image that depicts a storage container and identify sub-containers within the storage container. The computing system selects, from a virtual object library, a plurality of virtual objects that are semantically related to the sub-container. The computing system determines an arrangement of the virtual objects within the sub-container based on semantics associated with the sub-container and the plurality of virtual objects. The computing system generates a second image that depicts the arrangement of the plurality of virtual objects within the storage container and sub-containers. The computing system generates, for display, the second image depicting the storage container and the arrangement of the virtual objects.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: December 5, 2023
    Assignee: Adobe Inc.
    Inventors: Sanjeev Tagra, Sachin Soni, Ajay Jain, Ryan Rozich, Jonathan Roeder, Prasenjit Mondal
  • Patent number: 11837139
    Abstract: Disclosed is a method for collection and correction of a display unit. The method includes: placing a camera in front of a display unit to be corrected; collecting RGB brightness data of the display unit to be corrected to obtain an original brightness matrix; placing a standard brightness plane in front of a lens of the camera; obtaining a final brightness correction matrix of the camera according to the collected RGB brightness data of the standard brightness plane; multiplying the original brightness matrix by the final brightness correction matrix to obtain a restored real brightness matrix; and performing brightness correction on the real brightness matrix to obtain a corrected brightness matrix. A plurality of the display units corrected by the present disclosure are completely the same in terms of absolute brightness value, and positions of the display units can be arbitrarily changed with each other on the screen.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: December 5, 2023
    Assignee: CHANGCHUN CEDAR ELECTRONICS TECHNOLOGY CO., LTD
    Inventors: Xifeng Zheng, Xinyue Mao, Tiefu Ding, Guixin Guo, Yang Wang
  • Patent number: 11836343
    Abstract: A method includes: displaying a first display region in a full-screen view that includes a first type of component displayed with a first set of display properties; detecting a first user input to display a second display region; and, in response to detecting the first user input: in accordance with a determination that the first user input corresponds to a request to display the second display region in the full-screen view, displaying the second display region in the full-screen view that includes the first type of component displayed with the first set of display properties; and in accordance with a determination that the first user input corresponds to a request to display the second display region in a partial-screen view, displaying the second display region in the partial-screen view that includes the first type of component displayed with a second set of display properties.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: December 5, 2023
    Assignee: APPLE INC.
    Inventors: Mani Amini, Wan Si Wan, Eric Lance Wilson
  • Patent number: 11837174
    Abstract: A display device includes dots and a grayscale correction unit. Each dot among the dots includes a first pixel of a first color, a second pixel of a second color, and a third pixel of a third color. The grayscale correction unit is configured to generate corrected grayscale values for a target dot via application of weights to grayscale values of the target dot and grayscale values of neighboring dots of the target dot among the dots. The grayscale correction unit is configured to determine the weights based on the grayscale values of the target dot.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: December 5, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Woong Park, Takeshi Kato
  • Patent number: 11837176
    Abstract: A display device can include a display panel including a plurality of subpixels configured to display an image; a data driving circuit configured to supply a data signal to the plurality of subpixels; a gate driving circuit configured to supply a gate signal to the plurality of subpixels; and a timing controller configured to receive image data of a subsequent frame of an image of a current frame being displayed on the display panel, and differently control the data driving circuit during a blank period between the current frame and the subsequent frame based on a gray value of at least one edge subpixel among a plurality of edge subpixels in the image data of the subsequent frame. the plurality of edge subpixels are subpixels among the plurality of subpixels that are located adjacent to the gate driving circuit or at an edge of the display panel.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: December 5, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: SangHyun Park, MookYoung Hong
  • Patent number: 11837159
    Abstract: A display device including a display panel, and a method of driving the display device are provided. The display panel can operate in a first mode for displaying an image including a plurality of frames based on a first driving frequency, or in a second mode for displaying the image including the plurality of frames based on a second driving frequency different from the first driving frequency. The image displayed on the display panel operating in the first mode is changed from a first image in which the number of pixels representing a low gray level among the plurality of pixels is equal to or greater than a first threshold value, to a second image in which the number of pixels representing a high gray level among the plurality of pixels is equal to or greater than a second threshold value.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: December 5, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: HyunKyo Lim, DongSup Sim