Spatial Processing (e.g., Patterns Or Subpixel Configuration) Patents (Class 345/694)
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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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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
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Patent number: 10984697Abstract: This disclosure relates to techniques for a driving apparatus including a reordering circuit and a source driving circuit. The reordering circuit can be configured to reorder a plurality of sub-pixel data of an input data string to generate a reordered data string so as to reduce a color switching number associated with a target data line. The source driving circuit can be coupled to the reordering circuit to receive the reordered data string. The source driving circuit can be configured to drive the target data line of a display panel according to the reordered data string.Type: GrantFiled: January 21, 2020Date of Patent: April 20, 2021Assignee: Novatek Microelectronics Corp.Inventors: Tso-Hua Chien, Hung-Hsiang Chen, Huang-Chin Tang
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Patent number: 10983385Abstract: A display device includes a plurality of first pixels and a plurality of second pixels. The first and second pixels are configured to display different colors from each other, and a pitch between adjacent ones of the first pixels in a first direction is different from a pitch between adjacent ones of the second pixels in the first direction.Type: GrantFiled: December 14, 2018Date of Patent: April 20, 2021Assignee: Samsung Display Co., Ltd.Inventors: Hyunsup Lee, Hyesog Lee
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Patent number: 10971055Abstract: The present application discloses a display adjustment method and a display device. The method comprises steps of: obtaining a first pixel data of an image displayed by the display device; converting the first pixel data into a second pixel data after the first pixel data enters a timing controller; converting at least one of the second pixel data into sub-pixel data whose amount of stored data is reduced relative to the second pixel data to obtain a corresponding third pixel data; outputting the third pixel data.Type: GrantFiled: March 1, 2019Date of Patent: April 6, 2021Assignee: HKC Corporation LimitedInventor: Shuixiu Hu
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Patent number: 10971088Abstract: A sub-pixel rendering method, comprising the following steps: acquiring a second pixel array corresponding to an original image, each sub-pixel of the second pixel array corresponding to a greyscale value; mapping the second pixel array of the original image onto a first pixel array; respectively finding the central positions of the sub-pixels of the first pixel array and of the second pixel array, determining sub-pixels of the second pixel array positioned in every sub-pixel preset region in the first pixel array and of the same colour as said sub-pixels in the first pixel array, and measuring the distance of same from the central position of said sub-pixels of the first pixel array; on the basis of the distance, calculating the proportional coefficient occupied by the sub-pixels of the second pixel array in the sub-pixels of the first pixel array, and on the basis of the proportional coefficient and the greyscale value of the sub-pixels of the second pixel array, calculating the greyscale value correspondinType: GrantFiled: April 21, 2016Date of Patent: April 6, 2021Assignee: TRULY (HUIZHOU) SMART DISPLAY LIMITEDInventors: Guoliang Wu, Xiaojin Song, Wu Zheng, Yuewen Wang, Tianyou Chen, Junwen Hu, Junhai Su, Jianhua Li
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Patent number: 10964240Abstract: A method of calibrating a display panel includes making measurements of color components produced by the display panel, receiving an input image signal consisting of one or more pixel represented by input color component values, applying a first non-linear transform to the input color component values of the pixel to produce transformed color component values, wherein the first non-linear transform is either based upon the measurements and the panel design or a ratio of values of color components based upon the measurements, applying a crosstalk correction transform to the transformed color component values to produce crosstalk corrected color component values, applying a second non-linear transform to the crosstalk corrected color component values to produce final color component values, and sending the final color component values to the display panel.Type: GrantFiled: October 23, 2019Date of Patent: March 30, 2021Assignee: Pixelworks, Inc.Inventor: Neil Woodall
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Patent number: 10957282Abstract: A luminance compensation method for a display panel includes: dividing the display area into at least two sub-display areas including a first sub-display area and a second sub-display area, where a density of luminance abnormal textures in the first sub-display area is smaller than that in the second sub-display area, a number of types of the luminance abnormal textures in the first sub-display area is less than that in the second sub-display area; dividing the first sub-display area into a plurality of first compensation units, dividing the second sub-display area into at least one second compensation unit, where a total number of pixel units in each first compensation unit is greater than that in each second compensation unit; obtaining a compensation coefficient of each compensation unit and forming a compensation coefficient table; performing luminance compensation for the display panel according to the compensation coefficient table.Type: GrantFiled: June 28, 2019Date of Patent: March 23, 2021Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Yajun Hei, Jingxiong Zhou, Ruiyuan Zhou
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Patent number: 10950162Abstract: Systems and methods for a six-primary color system for display. A six-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. The six-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.Type: GrantFiled: May 29, 2020Date of Patent: March 16, 2021Assignee: BAYLOR UNIVERSITYInventors: Gary B. Mandle, James M. DeFilippis
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Patent number: 10943519Abstract: An image processing method and a display device are provided. The display device includes a computation circuit and a display panel. In the image processing method, at first, an original image including a straight line pattern and upper pixels is provided. The straight line pattern includes lower pixels opposite to the upper pixels. The display panel includes first lower sub-pixel structures corresponding to the first lower pixels and first upper sub-pixel structures corresponding to the first upper pixels. Thereafter, vertical sub-pixel rendering methods are performed on pixel luminances of the first lower pixels and the upper first upper pixels to obtain rendering sub-pixel luminances of the first lower pixels and the upper first upper pixels. Then, the first lower sub-pixel structures and the first upper sub-pixel structures are driven according to the rendering sub-pixel luminances.Type: GrantFiled: February 26, 2019Date of Patent: March 9, 2021Assignee: HIMAX TECHNOLOGIES LIMITEDInventor: Chi-Feng Chuang
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Patent number: 10923904Abstract: An overvoltage protection unit, an overvoltage protection method, a sampling module, a pixel circuit and a display apparatus are provided. The overvoltage protection unit includes a comparator and an output switch, where a first input terminal of the comparator is supplied with a predetermined maximum voltage, a second input terminal of the comparator is supplied with an actual sampled voltage, an output terminal of the comparator is connected with a control terminal of the output switch and the actual sampled voltage is supplied to an input terminal of the output switch; the output switch selectively outputs the actual sampled voltage in accordance with an output signal of the comparator.Type: GrantFiled: January 29, 2019Date of Patent: February 16, 2021Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chun Cao, Min He
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Patent number: 10916211Abstract: Provided are a method for correcting luminance nonuniformity of a liquid crystal display apparatus and a correction data generation device. Included are setting a voltage of a counter electrode to a specific counter voltage and capturing an image of a display screen; capturing each image of the display screen while increasing and decreasing the voltage of the counter electrode by a predetermined voltage; detecting a luminance value for each of a plurality of regions of the display screen each time an image is captured; determining a correction voltage for each of the region, for correcting a deviation of the counter voltage, based on a luminance value detected without varying a voltage of the counter electrode and luminance values each detected while increasing and decreasing a voltage of the counter electrode and superimposing a determined correction voltage on the data signal having an amplitude corresponding to a grayscale value.Type: GrantFiled: September 27, 2016Date of Patent: February 9, 2021Assignee: SAKAI DISPLAY PRODUCTS CORPORATIONInventor: Nobuyoshi Nagashima
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Patent number: 10916591Abstract: A pixel structure, the pixel structure comprising a plurality of pixels arranged in an array, each pixel comprising three sub-pixels of different colours arranged in two adjacent rows; the plurality of pixels also comprise a plurality of first pixels and a plurality of second pixels, the plurality of first pixels and the plurality of second pixels being arranged alternately along the row direction; along the row direction, one sub-pixel of each first pixel is positioned in the same row as two sub-pixels of the adjacent second pixel, and the other two sub-pixels of each first pixel are positioned in the same row as the other sub-pixel in the adjacent second sub-pixel; and two sub-pixels positioned in different rows in each first pixel are respectively adjacent to the sub-pixels of the same corresponding colour in an adjacent second pixel.Type: GrantFiled: April 19, 2019Date of Patent: February 9, 2021Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Panting He, Chang Luo, Ju Mei
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Patent number: 10916184Abstract: Embodiments of the present disclosure provide an array substrate and a driving method thereof, a display panel as well as a display device. The array substrate comprises: m rows and n columns of subpixels, wherein m and n are positive integers; a plurality of gate lines, wherein if m is an even number, when i<(m+1)/2, the ith gate line is connected to the subpixels in the (2i?1)th row and the 2ith row, and wherein if m is an odd number, when i<(m+1)/2, the ith gate line is connected to the subpixels in the (2i?1)th row and the 2ith row and when i=(m+1)/2, the ith gate line is connected to the subpixels in the mth row, wherein i is a positive integer less than or equal to (m+1)/2; and a plurality of data lines, wherein each column of subpixels corresponds to two data lines coupled to the subpixels.Type: GrantFiled: July 4, 2018Date of Patent: February 9, 2021Assignee: BOE Technology Group Co., Ltd.Inventors: Minghua Xuan, Lei Wang, Li Xiao, Shengji Yang, Pengcheng Lu, Xiaochuan Chen
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Patent number: 10909953Abstract: According to an aspect, a display device includes a display panel including sub-pixels of three primary colors, and pixels having a high-luminance color having higher luminance than that of the primary colors. The three primary colors include a first primary color, a second primary color, and a third primary color. The number of the sub-pixels is smaller than twice the number of the pixels, sub-pixels of the same color are arranged at even intervals in a row direction and at even intervals in a column direction, and the sub-pixels of the same color are arranged in a staggered manner.Type: GrantFiled: February 4, 2019Date of Patent: February 2, 2021Assignee: Japan Display Inc.Inventors: Shuji Hayashi, Takayuki Nakanishi
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Patent number: 10909901Abstract: A pixel arrangement includes a plurality of first groups of sub-pixels arranged in a first direction, each first group including first sub-pixels and third sub-pixels arranged alternately. A plurality of second groups of sub-pixels are arranged in the first direction, each second group including third sub-pixels and second sub-pixels alternately arranged. The first groups and the second groups are alternately arranged in a second direction intersecting the first direction. The first groups and the second groups are arranged to form a plurality of third groups of sub-pixels arranged in the second direction and a plurality of 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 third group including first sub-pixels and third sub-pixels alternately arranged, each fourth group including third sub-pixels and second sub-pixels alternately arranged.Type: GrantFiled: December 20, 2018Date of Patent: February 2, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Haidong Wu, Yansong Li, Weilong Zhou, Shanshan Bai, Yue Liu, Zhihui Xiao, Yangpeng Wang
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Patent number: 10903281Abstract: Discussed are embodiments of an organic light emitting display device, which includes a plurality of pixels, each including at least one red sub pixel, a plurality of green sub pixels, and at least one blue sub pixel, wherein red sub pixels and blue sub pixels of adjacent pixels are aligned in a first direction and a second direction, wherein green sub pixels of the adjacent pixels are aligned in the first direction and are also aligned in the second direction, wherein the plurality of green sub pixels is disposed between the at least one red sub pixel and the at least one blue sub pixel of each pixel, and wherein the plurality of green sub pixels is offset from the at least one red sub pixel and the at least one blue sub pixel in the first direction and the second direction in the each pixel.Type: GrantFiled: January 16, 2020Date of Patent: January 26, 2021Assignee: LG DISPLAY CO., LTD.Inventors: EuiHyun Chung, Yongmin Jeong
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Patent number: 10871678Abstract: A method for fabricating a color filter substrate is provided according to embodiments of the present disclosure. The method includes: forming a strip-like first black matrix pattern on a base substrate of the color filter substrate, where the first black matrix pattern defines a first pixel region and a second pixel region alternately arranged in a first direction, the first direction is perpendicular to an extending direction of the first black matrix pattern, and a first width of the first pixel region in the first direction is larger than a second width of the second pixel region in the first direction; fabricating a color resistance layer or a light-transmissive layer in the first pixel region through an inkjet printing process; and fabricating a color resistance layer or a light-transmissive layer in the second pixel region through an exposure and development process.Type: GrantFiled: March 22, 2018Date of Patent: December 22, 2020Assignees: BOE TECHNOLOGY GROUP CO., LTD., FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Dahai Li
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Patent number: 10872554Abstract: The present disclosure provides a display screen, a display device and a luminance compensation method. The display screen includes a window area and a bezel area; wherein the window area includes a first sub-area for actual display and a second sub-area provided around the first sub-area, the bezel area is provided in a periphery of the window area; the display screen further includes an auxiliary pixel area provided with multiple auxiliary pixels, the auxiliary pixel area covers at least the second sub-area, and the auxiliary pixels are controlled to present a same color as the bezel area when the display screen is switched on.Type: GrantFiled: June 27, 2019Date of Patent: December 22, 2020Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Hongliang Lv, Libao Cui, Boning Wang, Ruifeng Yang, Litao Fan, Yufei Liu, Huaxu Yang, Qingnan Al
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Patent number: 10867543Abstract: A display device may have multiple light emitter arrays. Each array may include multiple light emitters that emit light of a color. One or more of the arrays may have a reduced spatial resolution compared to other arrays as the size of the light emitters in the arrays with the reduced resolution may be larger than other light emitters. The display device may include one or more waveguides that converge light emitted from light emitters of different colors to form an image by overlapping the light at a spatial region. The display device may include an image processing unit that applies an anti-aliasing filter to reduce any visual effect perceived by users due to the reduced resolution in one or more color channels. The anti-aliasing filter may include convolution kernels that convolve input color values of different colors and may combine the convolution result for output color values of a color.Type: GrantFiled: April 9, 2019Date of Patent: December 15, 2020Assignee: Facebook Technologies, LLCInventor: Edward Buckley
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Patent number: 10854154Abstract: A method of driving an image display apparatus which includes an image display panel having a plurality of pixels arrayed in a two-dimensional matrix and each configured from a first subpixel for displaying a first primary color, a second subpixel for displaying a second primary color, a third subpixel for displaying a third primary color and a fourth subpixel for displaying a fourth color, and a signal processing section. The signal processing section is capable of calculating a first subpixel output signal, a second subpixel output signal, a third subpixel output signal, and a fourth subpixel output signal. The method includes a step of calculating a maximum value (Vmax(S)) of brightness, a saturation (S) and brightness (V(S)), and determining the expansion coefficient (?0).Type: GrantFiled: August 14, 2019Date of Patent: December 1, 2020Assignee: JAPAN DISPLAY INC.Inventors: Masaaki Kabe, Amane Higashi, Yasuo Takahashi, Akira Sakaigawa