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公开(公告)号：US11915667B2
公开(公告)日：2024-02-27
申请号：US17361399
申请日：2021-06-29
发明人： Xian Wang , Ran Duan , Masakazu Okamura
CPC分类号： G09G5/06 , G09G3/2003 , G09G2320/0666 , G09G2360/16
摘要： Provided is a method for displaying an image including: acquiring a to-be-displayed image; correcting the to-be-displayed image based on a target look-up table, wherein in the target look-up table, at least one of the original pixel values and a corresponding corrected pixel value satisfy: an absolute value of a difference between a first chroma and a second chroma is less than or equal to a chroma difference threshold, wherein the first chroma is a chroma of a first pixel, a pixel value of the first pixel being acquired by converting the original pixel value, and the second chroma is a chroma of a second pixel displayed by the display device, a pixel value of the second pixel being acquired by converting the corrected pixel value; and displaying a corrected to-be-displayed image.
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公开(公告)号：US11074872B2
公开(公告)日：2021-07-27
申请号：US16887536
申请日：2020-05-29
发明人： Enhui Guan , Ran Duan , Lihua Geng , Xianzhen Li , Qingguo Yang
IPC分类号： G09G3/34
摘要： A backlight driving circuit includes a pulse width modulator, at least one time-delay sub-circuit and a driving sub-circuit. The pulse width modulator is configured to transmit a control signal including a plurality of pulses. The at least one time-delay sub-circuit is configured to delay at least one pulse of the control signal from the pulse width modulator that is transmitted to the at least one time-delay sub-circuit by a set time. The driving sub-circuit is coupled to the at least one time-delay sub-circuit, and the driving sub-circuit is configured to drive at least one of a plurality of light-emitting devices in a backlight module to be turned on or off according to a control signal from the at least one time-delay sub-circuit obtained after the at least one pulse is delayed.
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公开(公告)号：US10631038B2
公开(公告)日：2020-04-21
申请号：US15933764
申请日：2018-03-23
发明人： Ran Duan
IPC分类号： H04N21/436 , G06K9/00 , H04N21/43 , H04N21/41 , H04N21/4363
摘要： The present application provides a playing method and a playing system. The playing method includes: playing display contents by a first display device; upon receipt of a storage instruction, recording playing position information and sending matching information to a second display device by the first display device; searching, by the second display device, for the first display device that sends the matching information upon receipt of a resuming instruction; pairing the first display device with the second display device; transmitting, by the first display device, the playing position information to the second display device; and resuming, by the second display device, playing the display contents according to the playing position information.
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公开(公告)号：US10593298B2
公开(公告)日：2020-03-17
申请号：US15576423
申请日：2017-06-23
发明人： Ran Duan
摘要： A display control device is disclosed herein, which includes a plurality of data generating chips and a plurality of data processing chips, corresponding to one another in a one-to-one relationship. The plurality of data generating chips are configured to receive an image signal. The image signal includes a plurality of image region signals, each corresponding to a different region of an image frame. Each data generating chip is configured to receive, and to conduct data processing to, at least one image region signal to generate image region data, and to send the image region data to a corresponding data processing chip. Each data processing chip is configured to conduct image processing to the image region data from a corresponding data generating chip to generate an image output signal, and to output the image output signal. On this basis, a display method and a display apparatus are also disclosed.
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公开(公告)号：US20180267758A1
公开(公告)日：2018-09-20
申请号：US15542154
申请日：2016-08-16
发明人： Tianyue Zhao , Ran Duan
CPC分类号： G06F3/147 , G06F3/1446 , G06T3/0068 , G06T2200/32 , G09G3/006 , G09G3/20 , G09G2300/026 , G09G2356/00 , G09G2360/145
摘要： A joining control method, a joining control device and a joined screen system, the joining control method including: outputting a first test image data to a joined screen according to the correspondence between images and ports; acquiring feedback image data, the feedback image being an image which is displayed on the joined screen and corresponds to the first test image data; if a feedback sub-image in the feedback image is identical to a test sub-image in the first test image but in a different position, establishing correspondence between the output port of the test sub-image data and the position of the feedback sub-image so as to update the correspondence between the images and the ports. The method can automatically adjust the output signal of the output ports, such that the joined screen can display the correct picture without the need to repeatedly plug and unplug cables.
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公开(公告)号：US20170140712A1
公开(公告)日：2017-05-18
申请号：US15105555
申请日：2015-09-08
IPC分类号： G09G3/36
CPC分类号： G09G3/36 , G09G3/20 , G09G2330/021 , G09G2330/022 , G09G2330/023 , G09G2340/0407 , G09G2340/0414 , G09G2354/00
摘要： The present disclosure provides an image processing method and system. The method may include: acquiring an image to be displayed; determining a distance between a display device and a user; comparing the determined distance with a plurality of optimum watching distances respectively, wherein the optimum watching distances are acceptable shortest distances corresponding to different resolutions for the display device when the user watches images displayed on the display device in a full vision under a vision limit; and processing the acquired image for displaying, according to a result of the comparing.
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公开(公告)号：US12008285B2
公开(公告)日：2024-06-11
申请号：US18016430
申请日：2021-11-10
发明人： Lihua Geng , Xitong Ma , Ran Duan , Xiaodong Shi
摘要： An image processing method includes: using image data of a first image as image data of a base region, wherein the first image has a first resolution; and generating, based on the image data of the first image, image data of an extended region according to extension policies, so as to obtain image data of a second image including the image data of the base region and the image data of the extended region, wherein the second image has a second resolution, and the first resolution is less than the second resolution.
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8.发明公开公开(公告)号：US20230401679A1
公开(公告)日：2023-12-14
申请号：US17434729
申请日：2020-11-27
发明人： Dan Zhu , Guannan Chen , Ran Duan
IPC分类号： G06T5/00 , G06N3/045 , G06N3/0464 , G06N3/08
CPC分类号： G06T5/003 , G06N3/045 , G06N3/0464 , G06N3/08 , G06T2207/20192 , G06T2207/20081 , G06T2207/20084
摘要： A computer-implemented image-processing method is provided. The computer-implemented image-processing method includes obtaining a pair of training samples including a training image having a first degree of sharpness and a reference image having a second degree of sharpness, the second degree greater than the first degree, at least portions of the training image and the reference image in a same pair having same contents; inputting the training image to the image-enhancing convolutional neural network to generate a training enhanced image; inputting the training enhanced image into an edge detector; generating, by the edge detector, a plurality of first edge maps; inputting the reference image into the edge detector; generating, by the edge detector, a plurality of second edge maps; and tuning parameters in the image-enhancing convolutional neural network to minimize at least the one or more first losses and a second loss.
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公开(公告)号：US20210166611A1
公开(公告)日：2021-06-03
申请号：US16961211
申请日：2019-06-21
发明人： Ran Duan
IPC分类号： G09G3/20
摘要： The present application discloses a display apparatus including a solution-on-chip (SOC) comprising a first input port receiving video data, a second input port configured to receive image data in a first resolution, and a central-processing unit comprising a frame-cut block integrated with an image processor to divide a frame of image data in the first resolution to 4 parts of the frame in a second resolution in a serial order. The display apparatus further includes a FPGA configured to write, read, and process respective one of the 4 parts of the frame in the serial order sent from the SOC to reconstruct a frame of image data in the first resolution. Furthermore, the display apparatus includes a TCON configured to receive the frame of the image data in the first resolution reconstructed by the FPGA and a display panel driven by the TCON to display the frame of image data.
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公开(公告)号：US10467737B2
公开(公告)日：2019-11-05
申请号：US15750515
申请日：2017-06-20
发明人： Pablo Navarrete Michelini , Han Yan , Ran Duan
摘要： A method for adjusting grayscale values of an image includes: for each pixel in the image, calculating a first mapping value for a grayscale value of the pixel in the image through a histogram equalization mapping function; calculating a second mapping value by subtracting a first preset value from the grayscale value of the pixel through the histogram equalization mapping function, and when the result exceeds a preset grayscale range, selecting a minimum value of the preset grayscale range for calculating the second mapping value; calculating a third mapping value by adding a second preset value to the grayscale value of the pixel through the histogram equalization mapping function and when the result exceeds the preset grayscale range, selecting a maximum value of the preset grayscale range; and calculating an output grayscale value of the pixel based on the first, second, and third mapping value and respective weights.
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