Spatial Processing (e.g., Patterns Or Subpixel Configuration) Patents (Class 345/694)
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Patent number: 11561443Abstract: This application provides a pixel structure and a display device thereof. The pixel structure includes: a plurality of pixel regions, each of the pixel regions including a plurality of sub-pixels, the plurality of sub-pixels of each pixel area including the first sub-pixel, and the first sub-pixel is configured at the center of each pixel area; sub-pixels of the remaining colors in the plurality of sub-pixels of each pixel area are centered on the first sub-pixel, configured on both sides of the first sub-pixel; and a color filter layer including a plurality of color resist layers, where the plurality of color resist layers are arranged corresponding to positions and colors of the plurality of pixel regions.Type: GrantFiled: March 7, 2019Date of Patent: January 24, 2023Assignee: HKC CORPORATION LIMITEDInventor: Shuixiu Hu
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Patent number: 11558587Abstract: A camera module according to various embodiments of the present invention comprises a lens module including at least one lens, and an image sensor module coupled to the lens module, wherein the image sensor module comprises a micro lens, at least one photodiode, and a filter array, the filter array includes a first filter capable of transmitting light of a first designated band and a second filter capable of transmitting light of a second designated band corresponding to a color having a complementary color relationship with another color corresponding to the first designated band, and the filter array may be disposed between the micro lens and the at least one photodiode. Various other embodiments are possible.Type: GrantFiled: July 26, 2018Date of Patent: January 17, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Soongeun Jang, Ildo Kim
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Patent number: 11549998Abstract: A driver device includes: a voltage terminal; a ground terminal; an output terminal; a first nMOS power transistor having a drain electrically connected to the voltage terminal, a source electrically connected to the output terminal, and a gate; an overvoltage protection circuit configured to limit a gate-to-source voltage of the first nMOS power transistor in a normal operating mode for the driver device; a pulldown circuit configured to force the first nMOS power transistor off in a stress test mode for the driver device; and a blocking circuit configured to block current flow from the output terminal to the ground terminal through the overvoltage protection circuit and the pulldown circuit in the stress test mode. A method of stress testing the driver device is also described.Type: GrantFiled: July 16, 2021Date of Patent: January 10, 2023Assignee: Infineon Technologies AGInventors: Carmelo Giunta, Marcus Nuebling, Steffen Thiele
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Patent number: 11551615Abstract: Disclosed are a display panel and a display device including the same according to an embodiment. A display panel according to the embodiment includes: a display area in which a plurality of first pixels are arranged at a first pixels per inch (PPI); and a sensing area in which a plurality of second pixels are arranged at a second PPI that is lower than the first PPI, wherein the first pixels of the display area and the second pixels of the sensing area are arranged adjacent to each other at a boundary between the display area and the sensing area, the second pixel includes red, green, and blue sub-pixels, and at least one of the red and green sub-pixels of the second pixel is arranged closest to the first pixel.Type: GrantFiled: July 23, 2021Date of Patent: January 10, 2023Assignee: LG Display Co., Ltd.Inventors: Min Sung Kang, Hee Jung Hong, Seong Ho Cho
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Patent number: 11545096Abstract: The present disclosure provides a driving method of a display module, a driving system thereof, and a display device. The driving method of the display module includes a display panel driving process, and a backlight module driving process driven synchronously with the display panel driving process. The display panel driving process includes steps: performing a color saturation adjustment; and obtaining second color signals to drive the display panel by converting. The backlight module driving process includes steps: using the light source adjustment coefficient to adjust a first brightness value to obtain a second brightness value; determining a dominant hue light source; and driving the dominant hue light source by the second brightness value.Type: GrantFiled: March 11, 2019Date of Patent: January 3, 2023Assignee: HKC CORPORATION LIMITEDInventor: Chih Tsung Kang
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Patent number: 11532266Abstract: A display device may include a substrate, a first sub-pixel circuit, a second sub-pixel circuit positioned in a first direction from the first sub-pixel circuit, a first driving voltage line extending in a second direction crossing the first direction and which transmits a driving voltage to the first sub-pixel circuit, a second driving voltage line extending in the second direction and which transmits the driving voltage to the second sub-pixel circuit, a first anode electrode including a first contact portion electrically connected to the first sub-pixel circuit, and a second anode electrode including a second contact portion electrically connected to the second sub-pixel circuit. The first contact portion is positioned in a third direction opposite to the first direction from the first driving voltage line. The second contact portion is positioned in the first direction from the second driving voltage line.Type: GrantFiled: January 24, 2022Date of Patent: December 20, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyunae Park, Wonkyu Kwak, Seunghan Jo
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Patent number: 11532283Abstract: The present disclosure relates to a display device and an image processing method thereof, and includes a pixel shift processing unit configured to shift an image displayed in an active pixel region within the size of a dummy pixel region. The pixel shift processing unit gradually changes a gray level of at least one dummy pixel in the dummy pixel region adjacent to the active pixel region up to a target gray level of pixel data, and gradually changes a gray level of at least one active pixel of an active pixel adjacent to the dummy pixel region up to a black gray level when the active pixel region is shifted.Type: GrantFiled: November 8, 2021Date of Patent: December 20, 2022Assignee: LG Display, Co., Ltd.Inventors: Hae Jong Jang, Ji Hye Koo
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Patent number: 11509884Abstract: A stereoscopic VR HMD has left and right display portions in which one of the display portions is arranged with a transformation to improve the perceived virtual image resolution and therefore the perceived virtual image quality. The transformation can include offsetting sub-pixels of one of the display portions in the horizontal and if desired vertical dimensions relative to the other display portion. By applying very small (sub-millimeter) offsets along with appropriately adjusted image data, two slightly different virtual images form a stereoscopic image with a perceived increased of resolution in the binocular overlap zone established by the display portions.Type: GrantFiled: November 30, 2021Date of Patent: November 22, 2022Assignee: Sony Interactive Entertainment Inc.Inventor: Jeffrey R. Stafford
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Patent number: 11500250Abstract: A display device is provided and includes first signal line between first and second pixel areas in first direction; first switching element in first pixel area, first switching element including first relay electrode in first pixel area; second switching element in second pixel area, second switching element including second relay electrode in second pixel area; first pixel electrode in the first pixel area; and second pixel electrode in second pixel area, wherein first pixel electrode includes first connector, second pixel electrode includes second connector, first and second connectors are arranged in first direction with first signal line interposed therebetween, gap width between first connector and first signal line is different from gap width between first signal line and second connector, and gap width between first relay electrode and first signal line is different from gap width between first signal line and second relay electrode.Type: GrantFiled: December 23, 2020Date of Patent: November 15, 2022Assignee: Japan Display Inc.Inventors: Mitsufumi Sogabe, Yoshitaka Ozeki, Nobutaka Ozaki
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Patent number: 11495177Abstract: The present invention provides an image processing circuit for compensating image data for a display panel used for displaying first and second image patterns respectively having first and second current loadings. The image processing circuit is used for: receiving a first original image data of the first image pattern and a second original image data of the second image pattern having the same brightness value for a pixel at the same location; converting the first original image data into a first final image data to compensate for an IR drop according to the first current loading; and converting the second original image data into a second final image data to compensate for the IR drop according to the second current loading. The first final image data and the second final image data have substantially the same brightness value for the pixel at the same location.Type: GrantFiled: July 7, 2021Date of Patent: November 8, 2022Assignee: NOVATEK Microelectronics Corp.Inventors: Hui-Feng Lin, Yen-Tao Liao
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Patent number: 11494377Abstract: Systems and methods for solving queries on image data are provided. The system includes a processor device coupled to a memory device. The system includes a detector manager with a detector application programming interface (API) to allow external detectors to be inserted into the system by exposing capabilities of the external detectors and providing a predetermined way to execute the external detectors. An ontology manager exposes knowledge bases regarding ontologies to a reasoning engine. A query parser transforms a natural query into query directed acyclic graph (DAG). The system includes a reasoning engine that uses the query DAG, the ontology manager and the detector API to plan an execution list of detectors. The reasoning engine uses the query DAG, a scene representation DAG produced by the external detectors and the ontology manager to answer the natural query.Type: GrantFiled: March 16, 2020Date of Patent: November 8, 2022Inventors: Eric Cosatto, Alexandru Niculescu-Mizil
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Patent number: 11482142Abstract: Systems are configured for facilitating light leak correction for a display device. The systems are configured to obtain a color value for a pixel and obtain a light leak value associated with the pixel. The light leak value is based on a measured light leakage associated with a color filter of a display device configured to display the pixel. Systems are also configured to generate an updated color value for the pixel by applying a light leak compensation operation to the color value for the pixel. The light leak compensation operation uses the light leak value as an input for modifying the color value to compensate for light leakage that may otherwise occur when displaying the pixel on the display device. Systems are also configured to trigger display of the pixel on the display device using the updated color value.Type: GrantFiled: October 28, 2020Date of Patent: October 25, 2022Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventor: Alexander C. Vlachos
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Patent number: 11468865Abstract: Disclosed is an image display apparatus including a display panel having a plurality of pixels, and a controller configured to control the display panel, wherein the plurality of pixels includes luminance pixels including subpixels of multiple colors and color pixels including subpixels of multiple colors, and wherein the luminance pixels output light with luminance higher than luminance of the color pixels and the color pixels output light with color purity higher than color purity of the luminance pixels. Accordingly, a high luminance and high color-saturation image may be displayed with the image display apparatus including the luminance pixels and the color pixels.Type: GrantFiled: July 15, 2019Date of Patent: October 11, 2022Assignee: LG ELECTRONICS INC.Inventor: Kyungjin Kang
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Patent number: 11444066Abstract: A display apparatus is provided. The display apparatus includes a plurality of anode pads disposed on a substrate and spaced apart from each other along a first direction; a cathode pad disposed on the substrate and spaced apart from the plurality of anode pads along a second direction that crosses the first direction; a plurality of repair anode pads disposed on the substrate, spaced apart from each other along the first direction, and spaced apart from the plurality of anode pads and the cathode pad along the second direction; and a plurality of light emitting diodes (LEDs) disposed on the substrate and spaced apart from each other along the first direction, each of the plurality of LEDs including an anode that is electrically connected to a corresponding anode pad from among the plurality of anode pads and a cathode that is electrically connected to the cathode pad.Type: GrantFiled: August 4, 2020Date of Patent: September 13, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Youngki Jung, Jihoon Kang, Jinho Kim, Sangmin Shin
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Patent number: 11444130Abstract: Disclosed are a display panel, a display method thereof, a display device, and a fine metal mask, and a display area of the display substrate includes a first display sub-area and a second display sub-area, where a plurality of uniformly distributed sub-pixels are arranged in the second display sub-area, and a distribution density of pixels in the first display sub-area is higher than a distribution density of pixels in the second display sub-area.Type: GrantFiled: March 20, 2019Date of Patent: September 13, 2022Assignee: BOE Technology Group Co., Ltd.Inventor: Wenjing Tan
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Patent number: 11393422Abstract: A method for controlling a frame rate of a display screen includes: determining a first area and a second area of a display screen; and scanning the first area at a first frame rate, and scanning the second area at a second frame rate, wherein the first frame rate is greater than the second frame rate.Type: GrantFiled: December 21, 2020Date of Patent: July 19, 2022Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.Inventor: Hao Liu
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Patent number: 11361688Abstract: In some embodiments, the disclosed subject matter involves a head worn device (HWD) for viewing augmented reality, or virtual images. A projector coupled to the HWD may use a microelectromechanical systems projector and project onto a holographic lens of the HWD. Images may be projected into an eyebox area that is deemed comfortable to the user, the eyebox area located in one of a plurality of vertically adjacent recording zones. The recording zone for projection may be selected by the user, or be automatically selected based on configuration parameters of the HWD. Horizontal correction of the eyebox may be included. In an embodiment, multiple horizontal images are displayed in the selected recording zone, in different wavelengths. Another embodiment adjusts horizontal shift of the projected image based on user inputs. Other embodiments are described and claimed.Type: GrantFiled: August 5, 2020Date of Patent: June 14, 2022Assignee: Google LLCInventor: Nicolas Abele
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Patent number: 11350065Abstract: Using different deformation maps that have elements corresponding to respective pixels deriving from an original image and have low-spatial frequency components, the elements indicating a moving direction and a moving amount of the corresponding pixels, the pixels deriving from the original image are moved in a moving direction by a moving amount, the moving direction and the moving amount being specified by the elements corresponding to the respective pixels, and modulated images are obtained. The modulated images are separated into brightness components and color components to obtain brightness component images and color component images, brightness of brightness component images and/or color of color component images is modulated to obtain brightness-modulated image and/or color-modulated image, and a video is obtained, the video being configured by arranging integrated images obtained by integrating the obtained brightness-modulated images and/or color-modulated images.Type: GrantFiled: April 4, 2019Date of Patent: May 31, 2022Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventor: Takahiro Kawabe
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Patent number: 11335236Abstract: The present disclosure provides an image processing method and a display device including rows of actual pixels each including actual sub-pixels, and starting positions of actual sub-pixels in odd-numbered and even-numbered rows are staggered by a distance of half of an actual sub-pixel. The method includes: determining rows of theoretical pixels corresponding to a to-be-displayed image, each theoretical pixel including theoretical sub-pixels, each actual pixel corresponding to at least two theoretical pixels; calculating grayscale data of each actual sub-pixel in a manner of: for a target actual pixel, determining a rendering mode for calculating grayscale data of each actual sub-pixel of the target actual pixel according to whether there is a specified detail feature in a pixel area where target theoretical pixels corresponding to the target actual pixel are located, different rendering modes are employed when there is or there is not a specified detail feature in the pixel area.Type: GrantFiled: June 30, 2020Date of Patent: May 17, 2022Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zhiheng Zhou, Tiankuo Shi, Yue Li, Xiaomang Zhang, Jingpeng Zhao, Yifan Hou, Zhihua Ji, Yilang Sun, Yifang Chu, Chuanjun Liu, Xin Duan, Lingyun Shi
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Patent number: 11322097Abstract: An organic light emitting display device includes: a display part comprising a plurality of pixel circuits, a pixel circuit from among the pixel circuits comprising: an organic light emitting diode; and a first transistor, the first transistor comprising a first electrode configured to receive a power source voltage and a second electrode connected to the organic light emitting diode; an initial voltage determiner configured to change a level of an initial voltage using image data of a frame; a sensor configured to apply the initial voltage to the second electrode of the first transistor; and a data driver configured to apply a data voltage to the control electrode of the first transistor.Type: GrantFiled: May 3, 2019Date of Patent: May 3, 2022Assignee: Samsung Display Co., Ltd.Inventor: Heesoon Jeong
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Patent number: 11315479Abstract: An array substrate including a plurality of pixel units arranged in a matrix is provided. Each pixel unit at least includes a first sub-pixel, a second sub-pixel and a third sub-pixel that emit light of different colors, the first sub-pixel has a lower luminous efficiency than the second and third sub-pixels. The array substrate further comprises a plurality of first gate lines and a plurality of second gate lines that correspond to respective rows of pixel units of the plurality of pixel units. The first sub-pixel in each row of pixel units of the plurality of pixel units is coupled to a first gate line of the plurality of first gate lines, and the second sub-pixel and the third sub-pixel in the row of pixel units of the plurality of pixel units are both coupled to a second gate line of the plurality of second gate lines.Type: GrantFiled: February 14, 2019Date of Patent: April 26, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Ning Cong, Minghua Xuan, Han Yue, Ming Yang, Xiaochuan Chen, Can Zhang, Can Wang, Liang Chen, Detao Zhao
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Patent number: 11308898Abstract: A pixel arrangement structure and a display panel are provided. The pixel arrangement structure includes a plurality of sub-pixels having different colors. Each of the sub-pixels is divided into a main pixel area and a sub-pixel area, an area of the main pixel area is not equal to an area of the sub-pixel area, and at most every four columns, a position of the main pixel area and a position of the sub-pixel area are alternately changed to improve brightness uniformity of a display panel.Type: GrantFiled: December 19, 2019Date of Patent: April 19, 2022Inventor: Yongfeng Liu
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Patent number: 11308897Abstract: A display device and a display control method, and the display device includes: a backlight module, a first display panel, and a second display panel, and a processor. The processor is configured to: acquire a pixel grayscale matrix of an image to be displayed; determine desired brightness of each pixel by using a grayscale-brightness curve of the second display panel based on the pixel grayscale matrix; determine set light-emitting brightness of backlight partition according to grayscale information in the pixel grayscale matrix corresponding to the backlight partition; obtain a first corrected brightness of each backlight partition based on light diffusion coefficients of the plurality of backlight partitions; determine a grayscale of pixel unit according to a brightness difference between the first corrected brightness and the desired brightness; obtain a second corrected brightness of the backlight partition.Type: GrantFiled: May 22, 2020Date of Patent: April 19, 2022Assignees: BOE MLED Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Tiankuo Shi, Lingyun Shi, Xiaomang Zhang, Xin Duan, Wei Sun, Guofeng Hu, Zhihua Ji, Yanhui Xi, Yan Sun, Bin Dai, Yue Li, Yifan Hou, Yilang Sun, Chuanjun Liu, Xue Dong
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Patent number: 11308920Abstract: In one embodiment, a computing system may access an image to be displayed by a display. The system may determine one or more characteristics associated with a content of the image. The one or more characteristics may include a spatial frequency of the content in a spatial frequency domain. The system may determine a display persistence time period for the display to display the image based on the one or more characteristics associated with the content of the image. The system may configure the display to display the image using the display persistence time period.Type: GrantFiled: May 7, 2021Date of Patent: April 19, 2022Assignee: Facebook Technologies, LLC.Inventors: Alexander Goettker, Thomas Scott Murdison, Kevin James MacKenzie, Larry Seiler
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Patent number: 11303873Abstract: A system and method for displaying image data comprise receiving 2D video data, generating, from the video data, a first plurality of intensity values of virtual primaries of a first virtual color gamut and a second plurality intensity values of a second virtual color gamut, the first plurality of intensity values being below a luminance threshold and approximating a predefined color gamut and the second plurality of intensity values being above the luminance threshold, converting the first plurality of intensity values into a third plurality of intensity values of predefined primaries of a first projection head of a display system and the second plurality of intensity values into a fourth plurality of intensity values of predefined primaries of a second projection head of the display system, and dynamically adjusting pixel levels of spatial modulators of the display system based on the third plurality and the fourth plurality of intensity values.Type: GrantFiled: December 10, 2019Date of Patent: April 12, 2022Assignee: Dolby Laboratories Licensing CorporationInventors: Ashley Nicole Penna, Trevor Davies, Martin J. Richards
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Patent number: 11302885Abstract: An electroluminescent display device includes: a substrate including: a first subpixel, a second subpixel, and a third subpixel, an insulating layer on the substrate, the insulating layer including a trench, a first electrode in each of the first to third subpixels on the insulating layer, an emission layer on the first electrode and the insulating layer, and a second electrode on the emission layer, wherein the trench is in a boundary between the first subpixel and the second subpixel, and wherein the trench is not in a boundary between the second subpixel and the third subpixel.Type: GrantFiled: July 23, 2019Date of Patent: April 12, 2022Assignee: LG Display Co., Ltd.Inventors: Hyeongjun Lim, Hansun Park
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Patent number: 11276349Abstract: An organic light emitting display device includes: a display unit including a plurality of pixels each coupled to a first scan line, a second scan line, and a data line; a scan driver configured to supply, to the display unit, a plurality of first scan pulses corresponding to a bias period and a second scan pulse corresponding to a data write period after the bias period through the respective first and second scan lines; an emission driver configured to supply an emission control signal to the display unit through emission control lines; a data driver configured to supply a data voltage to the display unit through the data lines; and a power supply configured to commonly supply, to the pixels, an initialization voltage, the initialization voltage having a voltage level switching between a first voltage level and a second voltage level in a preset period.Type: GrantFiled: May 16, 2019Date of Patent: March 15, 2022Assignee: Samsung Display Co., Ltd.Inventor: Jong Woong Park
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Patent number: 11270651Abstract: A display panel and a display terminal are provided. The display panel includes a base substrate and a plurality of sub-pixels. The sub-pixels include a sub-pixel driving circuit and a light emitting device. The sub-pixel driving circuit includes a detection unit, a first light emitting control unit, and a second light emitting control unit. By detecting a potential of a second node, the light emitting device does not emit light abnormally, there is no need to perform dark line processing on the sub-pixels in a current row, and influence of dark lines is eliminated.Type: GrantFiled: December 27, 2019Date of Patent: March 8, 2022Inventors: Liuqi Zhang, Baixiang Han
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Patent number: 11244608Abstract: An image processing method, comprising the following steps: obtaining a plurality of first luminance values, wherein the plurality of first luminance values corresponds to a first subpixel group comprising a target subpixel and a plurality of adjacent subpixels; and performing a subpixel rendering conversion on a target luminance value of the plurality of first luminance values corresponding to the target subpixel according to a weighting matrix and all of the plurality of first luminance values, so that the target luminance value is converted to a rendered luminance value, wherein the weighting matrix comprises a plurality of weighting parameters corresponding to the first subpixel group, and the weighting matrix is time-variant.Type: GrantFiled: October 20, 2020Date of Patent: February 8, 2022Assignee: NOVATEK Microelectronics Corp.Inventors: Shang-Yu Su, Feng-Ting Pai
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Patent number: 11238786Abstract: A display device includes the following elements: a light emitting diode; a first transistor including a drain electrode, a source electrode, and a gate electrode, the drain electrode being connected to the light emitting diode; a second transistor connected between a data line and the source electrode; a third transistor connected between the drain electrode and the gate electrode; and a fourth transistor connected between a first initialization voltage source and the gate electrode. The third transistor is off for a first period, on for a second period immediately following the first period, and off for a third period immediately following the second period. The fourth transistor is off for a fourth period, on for a fifth period immediately following the fourth period, and off for a sixth period immediately following the fifth period. The second period overlaps the fifth period.Type: GrantFiled: December 23, 2020Date of Patent: February 1, 2022Inventors: Min Woo Byun, Kyoung Jin Park, Jong Won Park, Myeong Hee Seo
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Patent number: 11232760Abstract: A driving method for a display device and a display device are disclosed. The driving method includes: obtaining a pre-display image; obtaining, according to an average of corresponding preset grayscale values of two blue sub-pixels in a pixel group, n sets of target grayscale value pairs of the pixel group by table lookup; and displaying a same pre-display image in m continuous frames of display cycles.Type: GrantFiled: December 13, 2017Date of Patent: January 25, 2022Assignee: HKC CORPORATION LIMITEDInventor: Beizhou Huang
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Patent number: 11217186Abstract: The present disclosure provides a dimming method for an LCD device. The LCD device includes a dimming screen and a display screen. The dimming screen is divided into N×M dimming areas, and the display screen is also divided into N×M display areas. N and M are respectively positive integers greater than or equal to 1. The dimming areas correspond to the display areas in a one-to-one relationship. The dimming method includes determining a regional eigenvalue of each of the dimming areas according to image data, determining a dimming brightness of each of the dimming areas according to each regional eigenvalue, and dimming each of the dimming areas according to each dimming brightness. The present disclosure also provides a dimming screen for use in the dimming method and an LCD device using the dimming method.Type: GrantFiled: April 4, 2019Date of Patent: January 4, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yanhui Xi, Yuxin Bi, Bin Dai, Xiaomang Zhang, Lingyun Shi
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Patent number: 11217188Abstract: The embodiments of the present disclosure provide a method for displaying an image on a dual-screen display panel. According to an embodiment, the dual-screen display panel comprises a dimming screen and a display screen. The method comprises: generating first image data for the dimming screen according to image data; determining dimming driving voltages for a plurality of dimming areas based on the first image data according to a grayscale-dimming driving voltage relationship; determining display driving voltages for a plurality of display areas based on the image data according to a grayscale-display driving voltage relationship; and driving the dimming screen and the display screen with the determined dimming driving voltages and display driving voltages, respectively, to display the image.Type: GrantFiled: November 16, 2018Date of Patent: January 4, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jun Guo, Cuilan Huang, Luqiang Guo, Jieqiong Wang, Hongming Zhan, Ruichen Zhang
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Patent number: 11211424Abstract: To improve color reproduction areas in a display device having light-emitting elements. A display region has a plurality of picture elements. Each picture element includes: first and second pixels each including a light-emitting element which has a chromaticity whose x-coordinate in a CIE-XY chromaticity diagram is 0.50 or more; third and fourth pixels each including a light-emitting element which has a chromaticity whose y-coordinate in the diagram is 0.55 or more; and fifth and sixth pixels each including a light-emitting element which has a chromaticity whose x-coordinate and y-coordinate in the diagram are 0.20 or less and 0.25 or less, respectively. The light-emitting elements in the first and second pixels have different emission spectrums from each other; the light-emitting elements in the third and fourth pixels have different emission spectrums from each other; and the light-emitting elements in the fifth and sixth pixels have different emission spectrums from each other.Type: GrantFiled: September 15, 2020Date of Patent: December 28, 2021Inventors: Hajime Kimura, Atsushi Miyaguchi
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Patent number: 11200857Abstract: A pixel signal conversion method, comprising: obtaining a corresponding first stimulus value signal, a corresponding second stimulus value signal, and a corresponding third stimulus value signal according to an initial first subpixel signal, an initial second subpixel signal and an initial third subpixel signal in a pixel signal. When the converted pixel signals are applied to a mixed color display consisting of W, R, G, and B four-color subpixels, the display effect is more approximate to actual presentation of original R, G, and B mixed colors, and the defect of large view color shift is overcome. Also provided is a pixel signal conversion device.Type: GrantFiled: November 20, 2018Date of Patent: December 14, 2021Assignee: HKC CORPORATION LIMITEDInventor: Chih Tsung Kang
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Patent number: 11194090Abstract: According to one embodiment, a display device displays a color gamut defined by connecting a first defined color in first chromaticity coordinates, a second defined color in second chromaticity coordinates, and a third defined color in third chromaticity coordinates. An illumination device of the display device includes green, blue and red lasers. The green and blue lasers emit light of the second and third defined colors, and red laser emits light of a color in fourth chromaticity coordinates. Each of the pixels displays a color including the first defined color by mixing light in the fourth chromaticity coordinates and the second defined color.Type: GrantFiled: September 2, 2020Date of Patent: December 7, 2021Assignee: Japan Display Inc.Inventors: Youichi Asakawa, Ken Onoda, Hiroaki Kijima, Shinichi Komura
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Patent number: 11195446Abstract: An active display can have an increased color gamut and include a group of LED packets that each form a sub-pixel and that together form a pixel for the display. Each LED packet includes at least a red primary color LED, a greed primary color LED, and a blue primary color LED. Each LED can be associated with an intensity value to control the intensity of primary light outputted by the LED. The group of LED packets can output light in a color gamut of a color space for the active display. Each LED packet of the group of LED packets, individually, is configured to output light in the color gamut of a subset of the color space. The active display can display a visual media presentation to an audience. An increased fraction of LEDs from a production batch can be used in the active display.Type: GrantFiled: November 6, 2018Date of Patent: December 7, 2021Assignee: IMAX Theatres International LimitedInventors: Steen Svendstorp Iversen, David Morrison Martindale
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Patent number: 11164500Abstract: A display driver comprises color gamut adjustment circuitry and drive circuitry. The color gamut adjustment circuitry is configured to generate an in-use parameter set based on a plurality of parameter sets corresponding to different color gamuts and a position of a target pixel and generate an output pixel data by performing color gamut adjustment processing on an input pixel data of the target pixel based on the in-use parameter set. The drive circuitry is configured to drive a display panel based on the output pixel data.Type: GrantFiled: November 27, 2019Date of Patent: November 2, 2021Assignee: Synaptics IncorporatedInventors: Masao Orio, Hirobumi Furihata, Akio Sugiyama, Takashi Nose
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Patent number: 11164910Abstract: Provided are a pixel structure, a mask, and a display device. The pixel structure includes a plurality of pixel groups arranged in an array. Each of the pixel groups includes a first pixel sub-group and a second pixel sub-group disposed adjacent to each other in a first direction. Each of the first pixel sub-group and the second pixel sub-group includes sub-pixels of three different colors, and each of the first pixel sub-group and the second pixel sub-group includes at least two sub-pixels having a same color and arranged consecutively.Type: GrantFiled: October 10, 2019Date of Patent: November 2, 2021Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD.Inventors: Mingxing Liu, Weixuan Hou, Junfeng Li, Feng Gao, Dongyun Lv, Xuliang Wang
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Patent number: 11158237Abstract: Disclosed are a driving method for a display panel, and a display device based on a viewing distance. The display panel includes a plurality of pixels arranged in an array, and each pixel includes sub-pixels of at least three colors. A viewing distance is acquired between a user and the display panel; the number of pixels to be lightened in the display panel is determined based on the viewing distance; the larger the viewing distance is, the smaller the number of pixels to be lightened in the display panel is; and displaying is performed based on the determined number of pixels to be lightened.Type: GrantFiled: December 6, 2019Date of Patent: October 26, 2021Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Desheng Xiang, Dawei Wang, Jingfei Mu, Jiaqiang Wang, Lidong Wang, Dong Wang
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Patent number: 11138942Abstract: The present disclosure provides a driving method of a display module, a driving system thereof, and a display device. The driving method of the display module includes a display panel driving process, and a backlight module driving process driven synchronously with the display panel driving process. The display panel driving process includes steps: performing a color saturation adjustment; and obtaining second color signals to drive the display panel. The backlight module driving process includes steps: obtaining a first light source adjustment coefficient and a second light source adjustment coefficient; obtaining a second brightness value and a third brightness value; and driving the primary hue light source and the secondary by the second brightness value and the third brightness value respectively.Type: GrantFiled: March 11, 2019Date of Patent: October 5, 2021Assignee: HKC CORPORATION LIMITEDInventor: Chih Tsung Kang
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Patent number: 11132948Abstract: A display device includes a display panel including a plurality of pixels, a data driver configured to generate a data voltage provided to the pixels, a light stress compensator configured to determine whether a pixel of the pixels satisfies a light stress condition based on an input image data, and to output a data voltage control signal that changes a voltage level of the data voltage provided to the pixel that satisfies the light stress condition, a scan driver configured to generate a scan signal provided to the pixels, and a timing controller configured to generate a control signal that controls the data driver and the scan driver.Type: GrantFiled: October 1, 2019Date of Patent: September 28, 2021Assignee: Samsung Display Co., Ltd.Inventor: Seung Ho Park
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Patent number: 11127361Abstract: According to one embodiment, a display device includes a display panel on which first pixels and second pixels are alternately arranged in the columnar direction, and a display controller configured to input a first image signal and to display an image. The first pixels and the second pixels are arranged such that first sub-pixels are adjacent to third sub-pixels in the columnar direction. The display controller is configured to execute conversion of converting the input first image signal into a second image signal, vary the luminance values of the third sub-pixels in the second image signal based on the luminance values of the third sub-pixels in the first image signal which become unable to be represented in the display panel.Type: GrantFiled: July 3, 2019Date of Patent: September 21, 2021Assignee: Japan Display Inc.Inventors: Yasuo Saruhashi, Kazunari Tomizawa
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Patent number: 11114507Abstract: A pixel arrangement including first groups of sub-pixels arranged in a first direction, each of the first groups including first sub-pixels and third sub-pixels arranged alternately, and second groups of sub-pixels arranged in the first direction, each of the second groups including third sub-pixels and second sub-pixels arranged alternately. The first groups and the second groups are alternately arranged in a second direction perpendicular to the first direction. The first groups and the second groups are arranged to form third groups of sub-pixels arranged in the second direction and fourth groups of sub-pixels arranged in the second direction. The third groups and the fourth groups are alternately arranged in the first direction. Each of the third groups includes first sub-pixels and third sub-pixels arranged alternately. Each of the fourth groups includes third sub-pixels and second sub-pixels arranged alternately.Type: GrantFiled: December 19, 2018Date of Patent: September 7, 2021Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Benlian Wang, Yangpeng Wang, Yang Wang, Haijun Yin, Haijun Qiu, Yao Hu, Weinan Dai
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Patent number: 11114015Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes multiple pixel units, multiple scan lines, and multiple data lines. Each pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel having different colors. Sub-pixels having a same color are in a same sub-pixel row. The data line includes a first sub-data line and a second sub-data line, the first sub-pixels on two sides of each first sub-data line are electrically connected to a same first sub-data line and are driven through a same first sub-data line, and the second sub-pixel and the third sub-pixel in a same column are electrically connected to a same second sub-data line and are driven through a same second sub-data line.Type: GrantFiled: April 20, 2020Date of Patent: September 7, 2021Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xiaoxiao Chen, Wenjun Xiao, Shijun Wang, Bo Feng, Yang Wang, Haoliang Ji
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Patent number: 11061234Abstract: A depth camera assembly for depth sensing of a local area includes an illumination source, an imaging device, and a controller. The illumination source illuminates a local area with light emitted in accordance with emission instructions generated by the controller. The illumination source includes an array of optical sources and an optical assembly. Operation of each optical source in the array is controllable based in part on the emission instructions. The optical assembly is configured to project the light into the local area. The imaging device captures one or more images of at least a portion of the light reflected from one or more objects in the local area. The controller determines depth information for the one or more objects based in part on the captured one or more images.Type: GrantFiled: February 1, 2018Date of Patent: July 13, 2021Assignee: Facebook Technologies, LLCInventors: Zhaoming Zhu, Nicholas Daniel Trail
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Patent number: 11043539Abstract: An organic light emitting display device includes subpixel groups including a plurality of subpixels, the subpixel groups being repeatedly arranged, wherein each of the subpixel groups includes a first subpixel unit and a second subpixel unit which each include a single blue subpixel, a single red subpixel, and two green subpixels, the two green subpixels of the first subpixel unit are arranged to be spaced apart in different directions with respect to a first extended line that runs through centers of the blue subpixel and the red subpixel of the first subpixel unit, and the two green subpixels of the second subpixel unit are arranged to be spaced apart in the same direction with respect to a second extended line that runs through centers of the blue subpixel and the red subpixel of the second subpixel unit.Type: GrantFiled: February 5, 2020Date of Patent: June 22, 2021Assignee: LG DISPLAY CO., LTD.Inventors: JungGeun Jo, JungHyun Ham, YoungSun Seo, SeonMee Lee, YuHoon Kim
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Patent number: 11043185Abstract: An electronic device includes a display driver integrated (DDI) circuit configured to output reference pixel values to be used to obtain target pixel values of a first line, and to output image pixel values associated with a target image; and a panel circuit configured to include the first line that includes pixels configured to display a reference image having the target pixel values, based on the reference pixel values, and a second line that includes pixels configured to display an image corresponding to the target image, based on the image pixel values. The DDI circuit may be further configured to compensate for the image pixel values based on differences between the image pixel values and the reference pixel values.Type: GrantFiled: April 20, 2020Date of Patent: June 22, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Yoonho Ko, Jiheon Ok, Taekon Yu, Hwa Hyun Cho
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Patent number: 11030933Abstract: A sub-pixel rendering method includes: obtaining a digital image, in which the number of grey levels in the digital image is greater than a number of sub-pixel structures of a display panel; determining if each grey level is in a dark-on-bright texture; transforming the grey levels into sub-pixel luminances; performing a filter operation on the sub-pixel luminances according to a rendering mask to calculate rendered sub-pixel luminances, in which a weight of the rendering mask is increased if the corresponding sub-pixel luminance is in the dark-on-bright texture; transforming the rendered sub-pixel luminances into rendered grey levels, and driving the display panel according to the rendered grey levels.Type: GrantFiled: December 8, 2019Date of Patent: June 8, 2021Assignee: HIMAX TECHNOLOGIES LIMITEDInventor: Chi-Feng Chuang
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Patent number: 10991318Abstract: A display driver comprises image processing circuitry, compensation circuitry, voltage data generator circuitry, and drive circuitry. The image processing circuitry is configured to generate a first voltage data based on an image data corresponding to an image to be displayed on a display panel. The compensation circuitry is configured to generate correction values for pixels of the display panel, based on a total current consumed in the pixels of the display panel and positions of the pixels in the display panel. The voltage data generator circuitry is configured to generate a second voltage data by correcting the first voltage data based on the correction values. The drive circuitry is configured to write drive voltages into the pixels based on the second voltage data.Type: GrantFiled: September 24, 2019Date of Patent: April 27, 2021Assignee: Synaptics IncorporatedInventors: Masao Orio, Hirobumi Furihata, Takashi Nose