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1. 发明授权

US11074872B2 Backlight driving circuit, backlight module, display device and backlight driving method 有权
公开(公告)号：US11074872B2
公开(公告)日：2021-07-27
申请号：US16887536
申请日：2020-05-29
申请人： BOE TECHNOLOGY GROUP CO., LTD.
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.

2. 发明授权

US10631038B2 Playing method and playing system 有权
公开(公告)号：US10631038B2
公开(公告)日：2020-04-21
申请号：US15933764
申请日：2018-03-23
申请人： BOE TECHNOLOGY GROUP CO., LTD.
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.

3. 发明授权

US10593298B2 Display control device, display control method, and display apparatus 有权
公开(公告)号：US10593298B2
公开(公告)日：2020-03-17
申请号：US15576423
申请日：2017-06-23
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Ran Duan
IPC分类号： G09G5/36 , G06T15/00 , G06T3/40
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.

4. 发明申请

US20180267758A1 Joining Control Method, Device and Joined Screen System 审中-公开
公开(公告)号：US20180267758A1
公开(公告)日：2018-09-20
申请号：US15542154
申请日：2016-08-16
申请人： BOE Technology Group Co., Ltd.
发明人： Tianyue Zhao , Ran Duan
IPC分类号： G06F3/147 , G06T3/00
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.

5. 发明申请

US20170140712A1 IMAGE PROCESSING METHOD AND IMAGE PROCESSING SYSTEM 审中-公开
公开(公告)号：US20170140712A1
公开(公告)日：2017-05-18
申请号：US15105555
申请日：2015-09-08
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Jing Yu , Ran Duan , Yanfu Li
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.

6. 发明申请

US20210166611A1 A PICTURE FRAME DISPLAY APPARATUS AND A DISPLAY METHOD 有权
公开(公告)号：US20210166611A1
公开(公告)日：2021-06-03
申请号：US16961211
申请日：2019-06-21
申请人： BOE Technology Group Co., Ltd.
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.

7. 发明授权

US10467737B2 Method and device for adjusting grayscale values of image 有权
公开(公告)号：US10467737B2
公开(公告)日：2019-11-05
申请号：US15750515
申请日：2017-06-20
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Pablo Navarrete Michelini , Han Yan , Ran Duan
IPC分类号： G06T5/40 , G06T5/00
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.

8. 发明授权

US10217199B2 System, method and storage medium for dynamic range expansion of digital image 有权
公开(公告)号：US10217199B2
公开(公告)日：2019-02-26
申请号：US15745032
申请日：2017-07-12
申请人： BOE Technology Group Co., Ltd.
发明人： Pablo Navarrete Michelini , Han Yan , Ran Duan
IPC分类号： G06T5/00 , G06T5/40 , G06F17/16
摘要： A system for dynamic range expansion of digital images includes: an optimizing device configured to calculate and store the output histogram of the previous frame of image data, calculate and obtain the mapping function according to the output histogram of the previous frame of image data and obtain the mapping table of the previous frame of image data according to the mapping function; and a mapping device configured to receive a next frame of image data and process the next frame of image data with the mapping table of the previous frame of image data to generate the enhanced image data. The present system enables processing ultrahigh definition images with very low requirements on hardware requirement. There is further provided a method and a non-volatile storage medium for dynamic range expansion of digital images.

9. 发明授权

US10097803B2 Display processing apparatus, device and method 有权
公开(公告)号：US10097803B2
公开(公告)日：2018-10-09
申请号：US15534432
申请日：2016-12-26
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Ran Duan
IPC分类号： H04N9/64 , H04N9/31 , H04N5/445 , G09G3/36 , H04N21/462 , H04N21/472 , H04N21/6547 , H04N21/435
摘要： A display processing apparatus includes a primary processing chip configured to receive a first ultra-high-definition video image and generate sub-branch primary image signals, and secondary processing chips coupled to the primary processing chip and to each other. Each of the secondary processing chips is configured to receive and process one of the sub-branch primary image signals to generate a first output image signal, receive and process an image section signal obtained from a second ultra-high-definition video image to generate a second output image signal.

10. 发明申请

US20160364839A1 IMAGE INTERPOLATION DEVICE AND METHOD THEREOF 审中-公开
标题翻译：图像插值装置及其方法
公开(公告)号：US20160364839A1
公开(公告)日：2016-12-15
申请号：US15030588
申请日：2015-12-10
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Ran Duan , Lijie Zhang
IPC分类号： G06T3/40 , G06K9/46 , G06K9/00
CPC分类号： G06T3/403 , G06K9/00536 , G06K9/4604 , G06T3/4007 , G06T7/13 , G06T2207/10004 , G06T2207/20012 , G06T2207/20192
摘要： The present application discloses an image interpolation method for interpolating a pixel and enhancing an edge in an image, comprising detecting an edge position in an image; obtaining edge characteristics associated with the edge position; determining whether an interpolation point is located within an edge region based on the edge characteristics of an array of p×q pixels surrounding the interpolation point, wherein p and q are integers larger than 1; determining edge direction of an interpolation point located within the edge region, wherein the edge direction is normal to gradient direction; classifying the edge direction accordingly to in angle subclasses and n angle classes; wherein each angle class comprises one or more subclasses, m and n are integers, and n≦m; selecting a one-dimensional horizontal interpolation kernel based on the angle class; performing a horizontal interpolation using the selected one-dimensional horizontal interpolation kernel; and performing a vertical interpolation using a one-dimensional vertical interpolation kernel.
摘要翻译：本申请公开了一种用于内插像素并增强图像中的边缘的图像插值方法，包括检测图像中的边缘位置; 获得与边缘位置相关联的边缘特征; 基于围绕所述插值点的p×q个像素的阵列的边缘特性来确定内插点是否位于边缘区域内，其中p和q是大于1的整数; 确定位于所述边缘区域内的内插点的边缘方向，其中所述边缘方向垂直于倾斜方向; 相应地将边缘方向分类为角度子类和n角类; 其中每个角度等级包括一个或多个子类，m和n是整数，n≤m; 基于角度类选择一维水平插值内核; 使用所选择的一维水平插值内核执行水平插值; 并使用一维垂直插值内核进行垂直插值。

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