公开(公告)号：US20210035508A1

公开(公告)日：2021-02-04

申请号：US16887536

申请日：2020-05-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Enhui GUAN ,  Ran DUAN ,  Lihua GENG ,  Xianzhen LI ,  Qingguo YANG

IPC: G09G3/34

Abstract: 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.

公开(公告)号：US20190069020A1

公开(公告)日：2019-02-28

申请号：US15933764

申请日：2018-03-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ran DUAN

IPC: H04N21/436 ,  H04N21/43 ,  G06K9/00

Abstract: 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.

公开(公告)号：US20240244156A1

公开(公告)日：2024-07-18

申请号：US18273330

申请日：2021-10-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Congrui WU ,  Lihua GENG ,  Xitong MA ,  Ran DUAN ,  Xian WANG

IPC: H04N5/265 ,  G06F3/147 ,  G06T7/00 ,  H04N7/01

CPC classification number: H04N5/265 ,  G06F3/147 ,  G06T7/0002 ,  H04N7/01 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20221 ,  G06T2207/30204

Abstract: The present disclosure provides a display control method, including: performing a splitting processing on a source video stream of a display panel in response to a multi-path display control instruction, to obtain a plurality of same video sub-streams; acquiring a processing parameter corresponding to each video sub-stream, and processing the video sub-stream according to the processing parameter; and performing a tiling and merging operation on the processed video sub-streams to obtain an output video stream, and outputting the output video stream to the display panel for displaying. The present disclosure further provides a display control device, a display apparatus, and a computer readable medium.

公开(公告)号：US20190139204A1

公开(公告)日：2019-05-09

申请号：US15750515

申请日：2017-06-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pablo NAVARRETE MICHELINI ,  Han YAN ,  Ran DUAN

IPC: G06T5/40 ,  G06T5/00

CPC classification number: G06T5/40 ,  G06T5/002 ,  G06T5/007 ,  G06T5/009 ,  G06T2207/10024 ,  G06T2207/20208

Abstract: 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.

公开(公告)号：US20190005614A1

公开(公告)日：2019-01-03

申请号：US15908966

申请日：2018-03-01

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiaoyu LI ,  Pablo Navarrete MICHELINI ,  Ran DUAN ,  Lihua GENG ,  Xitong MA

IPC: G06T3/40

CPC classification number: G06T3/40 ,  G06T3/4061

Abstract: The present disclosure provides a method and an apparatus for stretching an image. The method for stretching an image includes: selecting a corresponding stretching mode according to a mode selection parameter; generating a corresponding stretching filter group according to a stretching parameter and the selected stretching mode, and segmenting input image data into blocks; and processing the input image data segmented into blocks by the stretching filter group, to obtain stretched image data.

公开(公告)号：US20250087128A1

公开(公告)日：2025-03-13

申请号：US18705537

申请日：2023-04-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yanhong WU ,  Xian WANG ,  Congrui WU ,  Ran DUAN ,  Guannan CHEN

IPC: G09G3/20 ,  G09G3/32

Abstract: The present disclosure provides a display method for a splicing display screen, which belongs to the technical field of image display, wherein the splicing display screen includes a plurality of display panels spliced with each other, and the display method includes: determining initial gray-scale compensation data according to first gray-scale data for each pixel in current frame of image data and a pre-generated gray-scale compensation data table; acquiring temperature influence data of current frame of image data, and filtering each temperature influence data according to preset filter parameter information to obtain a gray-scale compensation coefficient; determining target gray-scale compensation data according to the gray-scale compensation coefficient and the initial gray-scale compensation data; and compensating a gray scale of the current frame of image data according to the target gray-scale compensation data to obtain compensated frame of image data.

公开(公告)号：US20240411499A1

公开(公告)日：2024-12-12

申请号：US18695816

申请日：2023-07-31

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ran DUAN

IPC: G06F3/14

Abstract: Provided is a spliced display screen. The spliced display screen includes a plurality of display screen modules, a plurality of control modules, and a communication bus; an image processing algorithm is configured in each control module; the each of the plurality of control modules is configured to receive video information and send an edge signal supplement request to other control modules; determine whether the communication bus is occupied by the each of the plurality of control modules; determine the each of the plurality of control modules as a master control module and other control modules as slave control modules; read at least part of edge information via the communication bus; and perform imaging processing on the received video information and multiple pieces of the at least part of edge information to generate image sub-information; and the plurality of display screen modules are configured to display received image sub-information.

公开(公告)号：US20240248669A1

公开(公告)日：2024-07-25

申请号：US18016408

申请日：2022-01-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Ran DUAN ,  Xiaodong SHI ,  Youxiang XIA

IPC: G06F3/14 ,  G06F3/01 ,  G06F3/033 ,  G06F3/04842 ,  G06F3/04845

CPC classification number: G06F3/1454 ,  G06F3/013 ,  G06F3/033 ,  G06F3/04842 ,  G06F3/04845 ,  G06F2203/04806

Abstract: The present disclosure provides an information display method, a display device, an electronic device, and a computer-readable medium, the information display method including: in a case where a first display device displays content to be annotated, displaying annotation information corresponding to the content to be annotated, in response to an annotation operation for the content to be annotated; and sending the annotation information to a second display device, so that the second display device displays the annotation information in an area corresponding to the content to be annotated.

公开(公告)号：US20230144426A1

公开(公告)日：2023-05-11

申请号：US17915307

申请日：2021-02-02

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xitong MA ,  Yanfu LI ,  Ran DUAN ,  Haiyan WAN

IPC: H04N5/06

CPC classification number: H04N5/06

Abstract: The present invention provides a monitor system and a display control method thereof. The monitor system comprises: a control module, used for sending human-computer interaction interface information and background picture information to a processing module by means of a same channel; the processing module, used for receiving video image information, processing the video image information, the human-computer interaction interface information and the background picture information, and outputting target image information to a display; and the display, used for displaying the target image information. According to the system, background picture information is stored in the control module, and by means of information transmission and processing between the control module and the processing module, target image information can be displayed on the display, thus achieving display control over the monitor system, without the need to additionally arrange an external device to store background picture information. The problems in the prior art that costs are high, structural design is difficult, and control accuracy is low are solved.

公开(公告)号：US20220398696A1

公开(公告)日：2022-12-15

申请号：US17626162

申请日：2020-12-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guannan CHEN ,  Ran DUAN ,  Mengdi SUN ,  Lijie ZHANG

IPC: G06T5/00 ,  G06T3/40 ,  G06V40/16 ,  G06T5/20 ,  G06V10/77 ,  G06T5/50

Abstract: An image processing method and device, and a computer-readable storage medium are disclosed. The method includes: performing a channel expansion process on the input image to obtain a first intermediate image; performing a channel decomposition process for multiple times based on the first intermediate image, wherein each time of channel decomposition process includes: decomposing an image to be processed into a first decomposition image and a second decomposition image; concatenating first decomposition images generated in each time of channel decomposition process and second decomposition image generated in the last time of channel decomposition process to obtain a concatenated image; performing a post-processing process on the concatenated image to obtain a second intermediate image; and fusing the second intermediate image with the input image to obtain the first output image.