CN113270058B - Fault detection method, medium, product and system for spliced screen - Google Patents
Fault detection method, medium, product and system for spliced screen Download PDFInfo
- Publication number
- CN113270058B CN113270058B CN202110825665.6A CN202110825665A CN113270058B CN 113270058 B CN113270058 B CN 113270058B CN 202110825665 A CN202110825665 A CN 202110825665A CN 113270058 B CN113270058 B CN 113270058B
- Authority
- CN
- China
- Prior art keywords
- signal
- hdmi
- lvds
- hdmi signal
- initial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Controls And Circuits For Display Device (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to the field of spliced screen fault detection, and discloses a fault detection method for a spliced screen. According to the fault detection method of the spliced screen, the intelligent fault detection of the HDMI receiving port or the LVDS output port is realized, the fault detection efficiency is improved, the fault processing efficiency of the DMI receiving port or the LVDS output port is ensured, and the use satisfaction of a user is improved.
Description
Technical Field
The invention relates to the field of spliced screen fault detection, in particular to a spliced screen fault detection method, equipment, medium, product and system.
Background
The existing spliced screen occasionally has a fault condition that a single screen or a plurality of screens are not bright in the using process, and the condition is usually that the screen cannot correctly display the content transmitted by an external console due to the fault of an HDMI receiving port or an LVDS output port in a screen control system. The traditional detection mode for the failure of the screen to normally display the playing content caused by the failure of the HDMI receiving port or the LVDS output port mainly comprises the following steps: after the worker initiatively finds that the screen can not be displayed normally, the worker immediately judges whether the screen is in fault, if not, the worker confirms that the HDMI receiving port or the LVDS output port is in fault, and at the moment, the worker manually reports a fault message to an external console. In summary, most of the existing fault detection for the HDMI receiving port or the LVDS output port is performed through a manual active discovery mode, which reduces the processing efficiency and the detection efficiency of such faults, thereby affecting the normal use of the spliced screen.
Disclosure of Invention
In order to overcome the defects of the prior art, an object of the present invention is to provide a method for detecting a failure of a tiled display screen, which can solve the problem that the processing efficiency and the detection efficiency of such a failure are reduced, thereby affecting the normal use of the tiled display screen, in the conventional manner that most of the failures of an HDMI receiving port or an LVDS output port are detected manually and actively.
The invention also aims to provide a computer readable storage medium, which can solve the problem that the normal use of a spliced screen is influenced by the processing efficiency and the detection efficiency of the faults mostly through a manual active discovery mode for detecting the faults of the HDMI receiving port or the LVDS output port.
The invention also aims to provide a computer program product, which can solve the problem that the conventional fault detection for an HDMI receiving port or an LVDS output port mostly adopts a manual active discovery mode, so that the processing efficiency and the detection efficiency of the faults are reduced, and the normal use of a spliced screen is influenced.
The fourth purpose of the present invention is to provide a fault detection system for a tiled screen, which can solve the problem that the conventional fault detection for an HDMI receiving port or an LVDS output port mostly adopts a manual active discovery mode, and this mode reduces the processing efficiency and the detection efficiency of such faults, thereby affecting the normal use of the tiled screen.
One of the purposes of the invention is realized by adopting the following technical scheme:
a fault detection method of a spliced screen comprises a plurality of screens, each screen is controlled by a unique corresponding main control drive board, a first HDMI signal receiving port, a second HDMI signal receiving port, an LVDS signal output port and a signal converter are arranged on each main control drive board, the signal converters are respectively connected with the second HDMI signal receiving port and the LVDS signal output port, the method is executed by the main control drive board, and the method comprises the following steps:
receiving an initial HDMI signal, receiving the initial HDMI signal input by an external console through a first HDMI signal receiving port, and converting the initial HDMI signal into an LVDS signal;
the LVDS is output to a control board in the screen through an LVDS output port for image display, and is output to a signal converter through the LVDS output port;
receiving a current HDMI signal, wherein the current HDMI signal is input by a signal converter through a second HDMI signal receiving port and is obtained by converting an LVDS signal by the signal converter;
comparing the signals, namely comparing the current HDMI signal with the initial HDMI signal to obtain a comparison result containing similarity;
and sending fault information, determining that a fault occurs and generating fault information when the comparison result does not reach a preset condition, and sending the fault information to an external control console.
Further, before the initial HDMI signal is converted into the LVDS signal, the initial HDMI signal is stored as a picture in a BMP format to obtain an initial BMP picture, and before the signal comparison, the current HDMI signal is stored as a picture in a BMP format to obtain a current BMP picture.
Further, the signal comparison specifically comprises: and comparing the similarity of the current BMP picture corresponding to the current HDMI signal with the initial BMP picture corresponding to the initial HDMI signal to obtain a comparison result.
Further, unifying the data format of the initial HDMI signal into RGB format before the storing the initial HDMI signal into the BMP format picture, and unifying the data format of the current HDMI signal into RGB format before the storing the current HDMI signal into the BMP format picture.
Further, the preset condition is that the similarity is not less than 80%.
The second purpose of the invention is realized by adopting the following technical scheme:
a computer-readable storage medium having stored thereon a computer program for execution by a processor of a method of fault detection of a tiled screen as described herein.
The third purpose of the invention is realized by adopting the following technical scheme:
a computer program product comprising a computer program which, when executed by a processor, implements a method of fault detection for a tiled screen as described herein.
The fourth purpose of the invention is realized by adopting the following technical scheme:
a fault detection system of a spliced screen comprises a plurality of screens and a plurality of main control drive plates, wherein each main control drive plate is used for controlling the only corresponding screen in the spliced screen, a first HDMI signal receiving port, a second HDMI signal receiving port, an LVDS signal output port and a signal converter are arranged on each main control drive plate, the signal converters are respectively connected with the second HDMI signal receiving port and the LVDS signal output port, and the LVDS signal output ports are connected with TCON boards in the corresponding screens;
the master control drive board receives an initial HDMI signal sent by an external console through the first HDMI signal receiving port, converts the initial HDMI signal into an LVDS signal and outputs the LVDS signal to the TCON board and the signal converter through the LVDS signal output port, the LVDS signal of the signal converter is converted into a current HDMI signal, the signal converter sends the current HDMI signal to the master control drive board through the second HDMI signal receiving port, and the master control drive board compares the current HDMI signal with the initial HDMI signal to obtain a comparison result containing similarity; when the comparison result does not reach the preset condition, the master control drive board determines that a fault occurs and generates fault information, and the master control drive board sends the fault information to an external control console.
Further, the signal converter is an LVDS-HDMI converter of ITE 6263.
Further, the main control driving board is in wired connection with an external console through an RS232 serial port.
Compared with the prior art, the invention has the beneficial effects that: according to the fault detection method for the spliced screen, LVDS signals are output to the TCON board in the screen through the LVDS signal output port, meanwhile LVDS signals are output to the signal converter through the LVDS signal output port, the current HDMI signals obtained by converting the LVDS signals are received by the signal converter, and the current HDMI signals are compared with the initial HDMI signals, so that whether the HDMI receiving port or the LVDS output port is in fault or not is judged according to the comparison result, the whole process does not need manual participation, intelligent fault detection of the HDMI receiving port or the LVDS output port is achieved, the fault detection efficiency is improved, the fault processing efficiency of the DMI receiving port or the LVDS output port is guaranteed, and the use satisfaction degree of users is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic method flow diagram of a fault detection method of a tiled screen according to the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
The spliced screen comprises a plurality of screens, each screen is controlled by a unique corresponding main control drive board, a first HDMI signal receiving port, a second HDMI signal receiving port, an LVDS signal output port and a signal converter are arranged on the main control drive board, the signal converters are respectively connected with the second HDMI signal receiving port and the LVDS signal output port, a TCON board used for converting the LVDS signals into image signals and displaying the image signals on the screen is arranged in each screen on the spliced screen, and the LVDS signal output port is connected with the TCON board. In this embodiment, the main control drive board corresponding to each screen is disposed at the controlled portion of the screen, at least two HDMI signal receiving ports are disposed on each main control drive board, the command for receiving HDMI signals is a first HDMI signal receiving port, if there are two HDMI signal receiving ports in total, the other command for not receiving HDMI signals is a second HDMI signal receiving port, and if there are more than two HDMI signal receiving ports in total, any one of the remaining HDMI signal receiving ports for not receiving HDMI signals is taken as a second HDMI signal receiving port.
In this embodiment, the HDMI signal receiving port (High-Definition Multimedia Interface) is also called a High-Definition Multimedia Interface, and is the first digital Interface supporting transmission over a single cable without compression for full digital High-Definition, multi-channel audio, and intelligent format and control command data. LVDS (Low-Voltage Differential Signaling) Low-Voltage Differential Signaling is a Differential Signaling technology with Low power consumption, Low error rate, Low crosstalk and Low radiation, the transmission technology can reach over 155Mbps, the core of the LVDS technology is to adopt high-speed Differential data transmission with extremely Low Voltage swing, and point-to-point or point-to-multipoint connection can be realized, and a transmission medium of the LVDS technology can be a copper PCB (printed Circuit Board) connecting wire or a balanced cable. The TCON board is generally called a logic board and a screen driving board, and mainly functions to convert LVDS image data input signals (input signals comprise RGB data signals, clock signals and control signals) sent by a digital board into LVDS signals capable of driving a liquid crystal screen after being processed by the logic board, and then directly send the LVDS signals to an LVDS receiving chip of the liquid crystal screen. The signal converter is an LVDS-HDMI converter with the model number of ITE 6263.
As shown in fig. 1, the method for detecting a failure of a tiled screen according to the present invention includes the following steps:
and receiving an initial HDMI signal, and receiving the initial HDMI signal input by the external console through the first HDMI signal receiving port by the main control drive board, and converting the initial HDMI signal into an LVDS signal. Generally, the data format of the HDMI signal is YUV format or RGB format, so before the initial HDMI signal is converted into the LVDS signal, the main control driver board determines whether the data format of the initial HDMI signal is YUV format or RGB format, and if the data format is YUV format, the data format is converted into RGB format, and the conversion between the two formats is specifically shown in the following formula (1):
R=Y+1.4075(V-128)；
G=Y-0.3455(U-128)-0.7169(V-128)；（1）
B=Y+1.779(U-128)；
the method comprises the following steps of obtaining a signal, wherein R is a Red value of the HDMI signal in an RGB format, G is a Green value of the HDMI signal in the RGB format, B is a Blue value of the HDMI signal in the RGB format, Y is a brightness value of the HDMI signal in the YUV format, U is a chroma value of the HDMI signal in the YUV format, and V is a concentration value of the HDMI signal in the YUV format. If the format is RGB, conversion is not needed, and the purpose of the step is to unify the data formats of all HDMI signals into RGB format. After unifying the data format of the HDMI signals into the RGB format, storing the initial HDMI signals as the picture in the BMP format to obtain an initial BMP picture.
And the main control driving board outputs the LVDS signals to a TCON board in the screen through an LVDS signal output port for image display, and simultaneously outputs the LVDS signals to a signal converter through the LVDS signal output port.
And the signal converter receives the LVDS signals input by the LVDS signal output port and converts the LVDS signals into current HDMI signals, and the current HDMI signals are input to the main control driving board through an idle second HDMI signal receiving port.
And receiving a current HDMI signal, wherein the current HDMI signal input by the signal converter through the second HDMI signal receiving port is received by the main control drive board, and the LVDS signal is converted by the signal converter to obtain the current HDMI signal. In this example, after receiving the current HDMI signal, the main control driver board also needs to determine whether the current HDMI signal is in YUV format or RGB format, and if the current HDMI signal is in YUV format, the current HDMI signal is converted into RGB format, so as to ensure that the data format of the current HDMI signal is in RGB format. Unifying the data format of the current HDMI signal into RGB format and then performing signal comparison.
And comparing the signals, wherein the master control drive board compares the current HDMI signal with the initial HDMI signal to obtain a comparison result containing similarity. Before the step, the master control drive board stores the current HDMI signal as a picture in BMP format to obtain the current BMP picture. Therefore, the steps are specifically as follows: and comparing the similarity of the current BMP picture corresponding to the current HDMI signal with the initial BMP picture corresponding to the initial HDMI signal to obtain a comparison result containing the similarity.
And sending fault information, determining that a fault occurs and generating fault information when the comparison result does not reach a preset condition, and sending the fault information to an external control console.
The present invention also provides a computer-readable storage medium having a computer program stored thereon, where the computer program is executed by a processor to perform a method for detecting a failure of a tiled screen as described in the present application.
The invention also provides a computer program product comprising a computer program which, when executed by a processor, implements a method of fault detection for a tiled screen as described herein.
The invention also provides a fault detection system of the spliced screen, wherein the spliced screen comprises a plurality of screens and a plurality of main control drive plates, each main control drive plate is used for controlling the only corresponding screen in the spliced screen, a first HDMI signal receiving port, a second HDMI signal receiving port, an LVDS signal output port and a signal converter are arranged on each main control drive plate, the signal converters are respectively connected with the second HDMI signal receiving port and the LVDS signal output port, and the LVDS signal output port is connected with the TCON board in the corresponding screen;
the master control drive board receives an initial HDMI signal sent by an external console through the first HDMI signal receiving port, converts the initial HDMI signal into an LVDS signal and outputs the LVDS signal to the TCON board and the signal converter through the LVDS signal output port, the LVDS signal of the signal converter is converted into a current HDMI signal, the signal converter sends the current HDMI signal to the master control drive board through the second HDMI signal receiving port, and the master control drive board compares the current HDMI signal with the initial HDMI signal to obtain a comparison result containing similarity; when the comparison result does not reach the preset condition, the master control drive board determines that a fault occurs and generates fault information, and the master control drive board sends the fault information to an external control console.
Preferably, the signal converter is an LVDS-HDMI converter of the type ITE 6263. The main control driving board is in wired connection with an external console through an RS232 serial port.
According to the fault detection method for the spliced screen, LVDS signals are output to the TCON board in the screen through the LVDS signal output port, meanwhile LVDS signals are output to the signal converter through the LVDS signal output port, the current HDMI signals obtained by converting the LVDS signals are received by the signal converter, and the current HDMI signals are compared with the initial HDMI signals, so that whether the HDMI receiving port or the LVDS output port is in fault or not is judged according to the comparison result, the whole process does not need manual participation, intelligent fault detection of the HDMI receiving port or the LVDS output port is achieved, the fault detection efficiency is improved, the fault processing efficiency of the DMI receiving port or the LVDS output port is guaranteed, and the use satisfaction degree of users is improved.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can readily practice the invention as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (9)
1. A fault detection method of a spliced screen, wherein the spliced screen comprises a plurality of screens, each screen is controlled by a unique corresponding main control drive board, and the method is characterized in that: the master control driving board is provided with a first HDMI signal receiving port, a second HDMI signal receiving port, an LVDS signal output port and a signal converter, the signal converter is respectively connected with the second HDMI signal receiving port and the LVDS signal output port, the method is executed by the master control driving board, and the method comprises the following steps:
receiving an initial HDMI signal, receiving the initial HDMI signal input by an external console through a first HDMI signal receiving port, and converting the initial HDMI signal into an LVDS signal;
outputting LVDS signals, outputting the LVDS signals to a TCON board in a screen through an LVDS signal output port for image display, and outputting the LVDS signals to a signal converter through the LVDS signal output port;
receiving a current HDMI signal, wherein the current HDMI signal is input by a signal converter through a second HDMI signal receiving port and is obtained by converting an LVDS signal by the signal converter;
comparing the signals, namely comparing the current HDMI signal with the initial HDMI signal to obtain a comparison result containing similarity;
sending fault information, determining that a fault occurs and generating fault information when a comparison result does not reach a preset condition, and sending the fault information to an external console;
the method comprises the steps of storing an initial HDMI signal into a picture in a BMP format to obtain an initial BMP picture before converting the initial HDMI signal into an LVDS signal, and storing a current HDMI signal into a picture in a BMP format to obtain a current BMP picture before comparing the signals.
2. The method for detecting the fault of the spliced screen as claimed in claim 1, wherein: the signal comparison specifically comprises: and comparing the similarity of the current BMP picture corresponding to the current HDMI signal with the initial BMP picture corresponding to the initial HDMI signal to obtain a comparison result.
3. The method for detecting the fault of the spliced screen as claimed in claim 1, wherein: unifying the data format of the initial HDMI signals into an RGB format before the initial HDMI signals are stored as the picture in the BMP format, and unifying the data format of the current HDMI signals into an RGB format before the current HDMI signals are stored as the picture in the BMP format.
4. The method for detecting the fault of the spliced screen as claimed in claim 1, wherein: the preset condition is that the similarity is not less than 80%.
5. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program is executed by a processor to perform a method of fault detection of a tiled screen according to any of claims 1 to 4.
6. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements a method for failure detection of a tiled screen according to any of the claims 1-4.
7. A fault detection system of a spliced screen, the spliced screen comprises a plurality of screens, and is characterized in that: the device comprises a plurality of main control drive boards, wherein each main control drive board is used for controlling a unique corresponding screen in a spliced screen, a first HDMI signal receiving port, a second HDMI signal receiving port, an LVDS signal output port and a signal converter are arranged on each main control drive board, the signal converters are respectively connected with the second HDMI signal receiving port and the LVDS signal output port, and the LVDS signal output port is connected with a TCON board in the corresponding screen;
the master control drive board receives an initial HDMI signal sent by an external console through the first HDMI signal receiving port, converts the initial HDMI signal into an LVDS signal and outputs the LVDS signal to the TCON board and the signal converter through the LVDS signal output port, the LVDS signal of the signal converter is converted into a current HDMI signal, the signal converter sends the current HDMI signal to the master control drive board through the second HDMI signal receiving port, and the master control drive board compares the current HDMI signal with the initial HDMI signal to obtain a comparison result containing similarity; when the comparison result does not reach the preset condition, the master control drive board determines that a fault occurs and generates fault information, and the master control drive board sends the fault information to an external control console.
8. The system for detecting faults of a spliced screen as claimed in claim 7, wherein: the type of the signal converter is an ITE6263 LVDS-HDMI converter.
9. The system for detecting faults of a spliced screen as claimed in claim 7, wherein: the main control driving board is in wired connection with an external console through an RS232 serial port.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110825665.6A CN113270058B (en) | 2021-07-21 | 2021-07-21 | Fault detection method, medium, product and system for spliced screen |
| PCT/CN2022/101353 WO2023000928A1 (en) | 2021-07-21 | 2022-06-27 | Fault detection method for tiled screen, and medium, product and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110825665.6A CN113270058B (en) | 2021-07-21 | 2021-07-21 | Fault detection method, medium, product and system for spliced screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113270058A CN113270058A (en) | 2021-08-17 |
| CN113270058B true CN113270058B (en) | 2021-12-03 |
Family
ID=77236990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110825665.6A Active CN113270058B (en) | 2021-07-21 | 2021-07-21 | Fault detection method, medium, product and system for spliced screen |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113270058B (en) |
| WO (1) | WO2023000928A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113270058B (en) * | 2021-07-21 | 2021-12-03 | 广州朗国电子科技股份有限公司 | Fault detection method, medium, product and system for spliced screen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104063322A (en) * | 2014-06-30 | 2014-09-24 | 广州视源电子科技股份有限公司 | Test method and device based on channel switch |
| CN105336289A (en) * | 2015-10-30 | 2016-02-17 | 京东方科技集团股份有限公司 | Splicing control method, splicing control device and spliced screen system |
| CN106250281A (en) * | 2016-08-05 | 2016-12-21 | 联想(北京)有限公司 | A kind of fault detection method and equipment |
| CN110336998A (en) * | 2019-07-04 | 2019-10-15 | 深圳市康冠技术有限公司 | Show mainboard detection method, display mainboard detection device and readable storage medium storing program for executing |
| CN111901589A (en) * | 2020-07-29 | 2020-11-06 | 深圳市泰霖科技有限公司 | Automatic test system for television mainboard |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9124853B2 (en) * | 2010-11-30 | 2015-09-01 | Verizon Patent And Licensing Inc. | HDMI device and interoperability testing systems and methods |
| CN107205176B (en) * | 2017-07-17 | 2020-12-29 | 深圳创维－Rgb电子有限公司 | Signal conversion device and method |
| CN207752739U (en) * | 2018-01-31 | 2018-08-21 | 国春鹏 | display device with splicing function |
| CN207926779U (en) * | 2018-03-20 | 2018-09-28 | 广州视源电子科技股份有限公司 | A kind of display terminal |
| CN109525826B (en) * | 2018-11-30 | 2021-09-03 | 武汉精立电子技术有限公司 | Long-distance distributed pattern signal generator based on optical fibers |
| CN209299400U (en) * | 2019-01-22 | 2019-08-23 | 深圳市金嵘达科技有限公司 | A kind of resolution ratio is adaptive, splices driving plate with the multi-screen treasured that HDMI ring connects |
| CN210378427U (en) * | 2019-08-12 | 2020-04-21 | 北京美晶视界科技有限公司 | Liquid crystal splicing screen |
| CN113270058B (en) * | 2021-07-21 | 2021-12-03 | 广州朗国电子科技股份有限公司 | Fault detection method, medium, product and system for spliced screen |
-
2021
- 2021-07-21 CN CN202110825665.6A patent/CN113270058B/en active Active
-
2022
- 2022-06-27 WO PCT/CN2022/101353 patent/WO2023000928A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104063322A (en) * | 2014-06-30 | 2014-09-24 | 广州视源电子科技股份有限公司 | Test method and device based on channel switch |
| CN105336289A (en) * | 2015-10-30 | 2016-02-17 | 京东方科技集团股份有限公司 | Splicing control method, splicing control device and spliced screen system |
| CN106250281A (en) * | 2016-08-05 | 2016-12-21 | 联想(北京)有限公司 | A kind of fault detection method and equipment |
| CN110336998A (en) * | 2019-07-04 | 2019-10-15 | 深圳市康冠技术有限公司 | Show mainboard detection method, display mainboard detection device and readable storage medium storing program for executing |
| CN111901589A (en) * | 2020-07-29 | 2020-11-06 | 深圳市泰霖科技有限公司 | Automatic test system for television mainboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113270058A (en) | 2021-08-17 |
| WO2023000928A1 (en) | 2023-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8839334B2 (en) | Method for controlling interface | |
| JP5144802B1 (en) | Display device | |
| CN102097050B (en) | A kind of apparatus and method realizing display seamless switching | |
| EP2495988A1 (en) | Method and apparatus for image processing and power supply | |
| CN100435564C (en) | Digital interface decode receiver apparatus | |
| US20050275603A1 (en) | Display apparatus and display system using the same | |
| CN113270058B (en) | Fault detection method, medium, product and system for spliced screen | |
| US8401359B2 (en) | Video receiving apparatus and video receiving method | |
| US20160372059A1 (en) | Signal conversion device and method, signal generating system and display apparatus | |
| CN113315930A (en) | Image display method, device, medium and system of spliced screen | |
| US20110157372A1 (en) | Multimedia apparatus having function of detecting video signal connection | |
| JP2004282599A (en) | Image display device, image display method, program, and recording medium | |
| TW201318409A (en) | Timing controller with video format conversion, method therefor, and display system | |
| KR20040025370A (en) | Display device and method for checking input signal | |
| CN103713868A (en) | Method and apparatus for dynamic adjustment of data transmission with usage context | |
| US7573534B2 (en) | Digital display appliance and method for outputting video data | |
| EP2071829A1 (en) | Signal processing apparatus and control method thereof | |
| WO2010147316A2 (en) | Signal transmission method, signal transmission apparatus and signal transmission system | |
| CN112506458A (en) | Man-machine display control signal remote transmission method for 6U VPX computer module | |
| US11176907B2 (en) | Video data displaying device | |
| CN212784865U (en) | Redundant power supply circuit and medical display device | |
| US20240094973A1 (en) | Display Method and Electronic Device | |
| CN215581485U (en) | Display device | |
| CN220292070U (en) | DP version judging circuit and connection equipment with same | |
| TWI462006B (en) | Display system and associated control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |