CN105892963A - Method for generating extended display identification data EDID and display device - Google Patents
Method for generating extended display identification data EDID and display device Download PDFInfo
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- CN105892963A CN105892963A CN201510848795.6A CN201510848795A CN105892963A CN 105892963 A CN105892963 A CN 105892963A CN 201510848795 A CN201510848795 A CN 201510848795A CN 105892963 A CN105892963 A CN 105892963A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
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Abstract
The present invention discloses a method for generating extended display identification data EDID and a display device. The method for generating extended display identification data EDID comprises: storing display parameter information of a display device, wherein the display parameter information comprises a public information part and a special information part, the public information part comprises public information in EDID information of multiple different types of display devices, and the special information part comprises special information that is different from the public information and that is in the EDID information of each type of display device among the multiple different types of display devices; when a request for EDID of a display device is received, extracting the public information part and the special information that corresponds to the display device and that is in the special information part; and based on the public information part and the special information corresponding to an interface, generating EDID of the display device. The method and the display device disclosed by the present invention are capable of increasing the efficiency of management and processing of EDID information.
Description
Technical field
The present invention relates to Display Technique, be used for generating extending display identification number more particularly, to one
Method and display device according to EDID.
Background technology
Now, intelligent TV set increasingly becomes Developing mainstream.In order to improve display quality, display point
Resolution is more and more higher.The current display device of such as television set typically have such as HDMI,
The video interface of USB interface etc..HDMI and VGA is display transmission means.Such as Xbox, machine
The electronic equipment of top box etc. can be as display source, and they also have described video interface.Television set can
Using the accepting device as described display source, for playing the content from described display source.
Display device, according to the size of display screen and display capabilities, supports that different displays is differentiated
Rate.Generally, each display device can support a range of resolution, and have one default
Resolution.In order to show content the most on the display device, as the electronic equipment in display source
It is to be appreciated that the resolution supported of display device or resolving range.This electronic equipment knows that display sets
The standby resolution that can be supported by, and export to display device with suitable resolution.
As display source electronic equipment by read interface extending display identification data (EDID:
Extended Display Identification Data) obtain the resolution that display device can be supported by.
Such as, HDMI includes HDMI EDID, and USB interface includes VGA EDID.EDID bag
Containing this display device supported resolution table, and comprise product identification, the logo of production product
Etc. information.Generally, the display device (such as, television set) of each company has many moneys size, example
Such as 40 cun, 50 cun, 60 cun etc..Therefore, different resolution supported by various sizes of display device.
The product identification of various sizes of display device is the most different, i.e. every kind of display device
EDID is the most different.At present, it is common practice that a corresponding EDID of product type.Existing
In technology, EDID is to fix in advance in the display device.But, when using a set of software code
The display device of different model is developed, when safeguarding, to the test of these EDID be one non-
Often scissors and paste.Additionally, generally EDID has the content of many repetitions.Such as, for same
The display device of the different model of one company, its EDID there may be many common portion.If
For the display device of each model, individually revising EDID, this can be the most troublesome thing.Additionally,
Owing to processing these EDID dispersedly, for close product, it is easy to mistake occurs.
Summary of the invention
It is an object of the present invention to provide a kind of for generating the new of extending display identification data EDID
Technical scheme.
According to the first aspect of the invention, it is provided that one is used for generating extending display identification data
The method of EDID, including: the display parameter information of storage display device, wherein, described display parameters
Information includes that public information part and specific information part, described public information part include multiple difference
Public information in the EDID information of the display device of kind, and described specific information part includes
The EDID information of every kind of display device in the plurality of different types of display device is different from institute
State the specific information of public information;And when receiving for the request of the EDID of display device from aobvious
Show parameter information extracts in public information part and specific information part corresponding with this display device
Specific information;And based on described public information part and the specific information corresponding with this interface, generate
The EDID of this display device.
Preferably, by using different field to distinguish the specific information of different types of display device.
Preferably, at least one during described field includes identification of the manufacturer and product identification.
Preferably, described interface is USB interface or HDMI, and described EDID information
It is VGA EDID information or HDMI EDID information.
Preferably, described method also includes: calculate the check code of the EDID generated.
According to the second aspect of the invention, it is provided that a kind of display device, including: memory element, use
In the display parameter information of this display device of storage, wherein, described display parameter information includes public letter
Breath part and specific information part, described public information part includes multiple different types of display device
EDID information in public information, and described specific information part includes the plurality of the most of the same race
The EDID information of every kind of display device in the display device of class is different from the spy of described public information
Different information;And extraction unit, it is used for when receiving for the request of the EDID of display device from aobvious
Show parameter information extracts in public information part and specific information part corresponding with this display device
Specific information;And signal generating unit, for based on described public information part and corresponding with this interface
Specific information, generates the EDID of this display device.
Preferably, in the memory unit, the specific information of different types of display device is by using not
It is distinguished with field.
Preferably, at least one during described field includes identification of the manufacturer and product identification.
Preferably, described interface is USB interface or HDMI, and described EDID information
It is VGA EDID information or HDMI EDID information.
Preferably, described signal generating unit is additionally operable to calculate the check code of the EDID generated.
In the present invention, owing to the common ground of the EDID information of different types of display device is made
Manage for public information, therefore, it can so that management and the process for EDID information is more effective
Rate.
By detailed description to the exemplary embodiment of the present invention referring to the drawings, its of the present invention
Its feature and advantage thereof will be made apparent from.
Accompanying drawing explanation
Combined in the description and the accompanying drawing of the part that constitutes description shows the reality of the present invention
Execute example, and together with its explanation for explaining the principle of the present invention.
Fig. 1 shows the flow chart of method according to an embodiment of the invention.
Fig. 2 shows the schematic diagram of display device according to an embodiment of the invention.
Detailed description of the invention
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should also be noted that
Unless specifically stated otherwise, the parts that illustrate the most in these embodiments and step positioned opposite,
Numerical expression and numerical value do not limit the scope of the invention.
Description only actually at least one exemplary embodiment is illustrative below, never makees
For to the present invention and application thereof or any restriction of use.
May not beg in detail for technology, method and apparatus known to person of ordinary skill in the relevant
Opinion, but in the appropriate case, described technology, method and apparatus should be considered a part for description.
Shown here with in all examples discussed, any occurrence should be construed as merely example
Property rather than as limit.Therefore, other example of exemplary embodiment can have different
Value.
It should also be noted that similar label and letter represent similar terms, therefore, one in following accompanying drawing
A certain Xiang Yi the accompanying drawing of denier is defined, then need not it is carried out further in accompanying drawing subsequently
Discuss.
As it is shown in figure 1, in step S210, store and show described in the display parameter information of display device
Parameter information includes public information part and specific information part, and described public information part includes multiple
Public information in the EDID information of different types of display device, and described specific information part
Including different in the EDID information of every kind of display device in the plurality of different types of display device
Specific information in described public information.
Due in the present invention, common by the EDID information of multiple different types of display devices
Part stores as public information, and therefore, when developing, safeguarding, technical staff can be more
Add efficiently to EDID process.Such as, compared with prior art, technical staff need not pin
The product of each kind is individually modified.Additionally, due to the processing mode of this concentration, also exist
Avoid technical staff to a certain extent and produce the probability of mistake.
For example, it is possible to by using different field to distinguish the special letter of different types of display device
Breath.As a rule, the display device of different vendor has different EDID.Additionally, different model
Display device is likely to have different EDID.Therefore, in one example, described field includes factory
Trade mark is known and at least one in product identification.
In the present invention, described display device can include USB interface or HDMI, and
Described EDID information is VGA EDID information or HDMI EDID information.
In step S220, when receiving for the request of the EDID of display device from display parameter information
Specific information corresponding with this display device in middle extraction public information part and specific information part.
In step S210, based on described public information part and the specific information corresponding with this interface,
Generate the EDID of this display device.
Then, the check code of generated EDID can be calculated.The check code calculated is added to
In EDID, verify for receiving the electronic equipment of EDID.
Fig. 2 shows the schematic diagram of display device according to an embodiment of the invention.In fig. 2,
Display device 200 is connected with electronic equipment 300 by data wire 400.
Electronic equipment 300 can be such as Set Top Box, Blu-ray player, DVD player, host computer,
Xbox etc..Such as, electronic equipment 300 is connected to display device 200 by HDMI or VGA.
Display device 200 e.g. display or television set etc..Display device 200 includes display screen.
Display device 200 includes various interface 240, such as USB interface or HDMI.
As in figure 2 it is shown, display device 200 includes: memory element 210, extraction unit 220, life
Become unit 230.
Memory element 210 is for storing the display parameter information of this display device.Described display parameters are believed
Breath includes that public information part and specific information part, described public information part include multiple the most of the same race
Public information in the EDID information of the display device of class, and described specific information part includes institute
State described in the EDID information of every kind of display device in multiple different types of display device is different from
The specific information of public information.
Memory element 210 can be such as the quasiconductor of the magnetic storage of such as hard disk, such as flash memory
Memorizer etc..
Such as, in memory element 210, the specific information of different types of display device is by using
Different field is distinguished.Described field such as can include at least in identification of the manufacturer and product identification
Individual.
Interface 240 e.g. USB interface or HDMI.Described EDID information is the most permissible
It is VGA EDID information or HDMI EDID information.
Extraction unit 220 is used for when receiving for the request of the EDID of display device from display parameters
Information is extracted special letter corresponding with this display device in public information part and specific information part
Breath.Memory element 210 can be conducted interviews by extraction unit 220, to extract data from it.
Signal generating unit 230 is for based on described public information part and the special letter corresponding with this interface
Breath, generates the EDID of this display device.
Such as, described signal generating unit 230 is additionally operable to calculate the check code of the EDID generated.Counted
The check code calculated is added in EDID, verifies for receiving the electronic equipment of EDID.
It will be appreciated by those skilled in the art that, extraction unit 220 He can be realized by various modes
Signal generating unit 230.For example, it is possible to realize extraction unit 220 and life by instruction configuration processor
Become unit 230.For example, it is possible to instruction is stored in ROM, and when starting the device, will refer to
Order reads from ROM and realizes extraction unit 220 and signal generating unit 230 programming device.Such as,
Extraction unit 220 and signal generating unit 230 can be cured in dedicated devices (such as ASIC).Can
So that extraction unit 220 and signal generating unit 230 are divided into separate unit, or can be by them
Combine realization.Extraction unit 220 and signal generating unit 230 can pass through above-mentioned various realization sides
One in formula realizes, or can be by two or more sides in above-mentioned various implementations
The combination of formula realizes.These implementations are the most all that by,
And extraction unit 220 and signal generating unit 230 that should be described by the present invention be contained.
The method of the present invention or equipment can also be embodied by computer program.Computer program
Product can include computer-readable recording medium, containing for making processor realize the present invention's
The computer-readable program instructions of various aspects.
Computer-readable recording medium can keep and store by instruction execution equipment use
The tangible device of instruction.Computer-readable recording medium such as may be-but not limited to-electricity and deposits
Storage equipment, magnetic storage apparatus, light storage device, electromagnetism storage device, semiconductor memory apparatus or
The combination of above-mentioned any appropriate.The more specifically example of computer-readable recording medium is (non exhaustive
List) including: portable computer diskette, hard disk, random access memory (RAM), read-only deposit
Reservoir (ROM), erasable type programmable read only memory (EPROM or flash memory), static random
Access memorizer (SRAM), Portable compressed dish read only memory (CD-ROM), numeral are many
Functional disc (DVD), memory stick, floppy disk, mechanical coding equipment, such as storage has instruction on it
Punch card or groove internal projection structure and the combination of above-mentioned any appropriate.Meter used herein above
Calculation machine readable storage medium storing program for executing is not construed as instantaneous signal itself, such as radio wave or other freedom
The electromagnetic wave propagated, the electromagnetic wave propagated by waveguide or other transmission mediums (such as, pass through optical fiber
The light pulse of cable) or by the signal of telecommunication of wire transfer.
Computer-readable program instructions as described herein can be downloaded from computer-readable recording medium
To each calculating/processing equipment, or by network, such as the Internet, LAN, wide area network and/
Or wireless network downloads to outer computer or External memory equipment.Network can include copper transmission cable,
Fiber-optic transfer, be wirelessly transferred, router, fire wall, switch, gateway computer and/or edge clothes
Business device.Adapter or network interface in each calculating/processing equipment receive computer from network
Readable program instructions, and forward this computer-readable program instructions, calculate for being stored in each/process
In computer-readable recording medium in equipment.
Can be assembly instruction, instruction set architecture for performing the computer program instructions of present invention operation
(ISA) instruction, machine instruction, machine-dependent instructions, microcode, firmware instructions, state arrange number
According to or the source code write with the combination in any of one or more programming languages or object code, institute
State programming language and include OO programming language such as Smalltalk, C++ etc., and conventional
Procedural programming languages such as " C " language or similar programming language.Computer-readable program instructions
Can perform the most on the user computer, perform the most on the user computer, as one
Independent software kit performs, part part the most on the user computer performs the most on the remote computer or
Perform on remote computer or server completely.In the situation relating to remote computer, remotely count
By the network of any kind, calculation machine can include that LAN (LAN) or wide area network (WAN) connect
To subscriber computer, or, it may be connected to outer computer (such as utilizes Internet service to provide
Business passes through Internet connection).In certain embodiments, by utilizing computer-readable program instructions
Status information come personalized customization electronic circuit, such as Programmable Logic Device, field programmable gate
Array (FPGA) or programmable logic array (PLA), this electronic circuit can perform computer can
Reader instructs, thus realizes various aspects of the invention.
This is described referring herein to method according to embodiments of the present invention, the flow chart of equipment and/or block diagram
The various aspects of invention.Should be appreciated that flow chart and/or each square frame of block diagram and flow chart and/
Or the combination of each square frame in block diagram, can be realized by computer-readable program instructions.
These computer-readable program instructions can be supplied to general purpose computer, special-purpose computer or other
The processor of programmable data processing means, thus produce a kind of machine so that these instructions are logical
When crossing the processor execution of computer or other programmable data processing means, create flowchart
And/or the device of the function/action of regulation in the one or more square frames in block diagram.These can also be counted
Calculation machine readable program instructions store in a computer-readable storage medium, these instruction make computer,
Programmable data processing means and/or other equipment work in a specific way, thus, storage has instruction
Computer-readable medium then includes a manufacture, and it includes one in flowchart and/or block diagram
Or the instruction of the various aspects of the function/action of regulation in multiple square frame.
Computer-readable program instructions can also be loaded into computer, other programmable data processes dress
Put or on miscellaneous equipment so that at computer, other programmable data processing means or miscellaneous equipment
Upper execution sequence of operations step, to produce computer implemented process so that computer,
The instruction flowchart performed in other programmable data processing means or miscellaneous equipment and/or block diagram
In one or more square frames in regulation function/action.
Flow chart and block diagram in accompanying drawing show the method for the multiple embodiments according to the present invention and set
Standby architectural framework in the cards, function and operation.In this, every in flow chart or block diagram
Individual square frame can represent a module, program segment or a part for instruction, described module, program segment or
A part for instruction comprises the executable instruction of one or more logic function for realizing regulation.?
Some is as in the realization replaced, and the function marked in square frame can also be marked to be different from accompanying drawing
The order of note occurs.Such as, two continuous print square frames can essentially perform substantially in parallel, they
Sometimes can also perform in the opposite order, this is depending on involved function.It is also noted that
The combination of the square frame in each square frame in block diagram and/or flow chart and block diagram and/or flow chart, can
Realize with the special hardware based system by the function or action performing regulation, or can use
Specialized hardware realizes with the combination of computer instruction.It is well known that to those skilled in the art,
By the way of hardware mode is realized, is realized by software mode and combined by software and hardware in fact
It is the most all of equal value.
Being described above various embodiments of the present invention, described above is exemplary, and exhaustive
Property, and it is also not necessarily limited to disclosed each embodiment.At the model without departing from illustrated each embodiment
Enclose with spirit in the case of, many modifications and changes for those skilled in the art
Will be apparent from.The selection of term used herein, it is intended to explain the former of each embodiment best
Reason, actual application or the improvement to the technology in market, or make other common skill of the art
Art personnel are understood that each embodiment disclosed herein.The scope of the present invention be defined by the appended claims.
Claims (10)
1. for the method generating extending display identification data EDID, including:
The display parameter information of storage display device, wherein, described display parameter information includes public letter
Breath part and specific information part, described public information part includes multiple different types of display device
EDID information in public information, and described specific information part includes the plurality of the most of the same race
The EDID information of every kind of display device in the display device of class is different from the spy of described public information
Different information;
From display parameter information, public letter is extracted when receiving for the request of the EDID of display device
Specific information corresponding with this display device in breath part and specific information part;And
Based on described public information part and the specific information corresponding with this interface, generate this display device
EDID.
Method the most according to claim 1, wherein, by using different field to distinguish not
The specific information of congener display device.
Method the most according to claim 2, wherein, described field includes identification of the manufacturer and product
At least one in product mark.
Method the most according to claim 1, wherein, described display device includes USB interface
Or HDMI, and described EDID information be VGA EDID information or HDMI EDID letter
Breath.
Method the most according to claim 1, also includes: calculate the school of the EDID generated
Test code.
6. a display device, including:
Memory element, for storing the display parameter information of this display device, wherein, described display ginseng
Number information include public information part and specific information part, described public information part include multiple not
Public information in the EDID information of congener display device, and described specific information part bag
Include in the EDID information of every kind of display device in the plurality of different types of display device and be different from
The specific information of described public information;And
Extraction unit, for believing from display parameters when receiving for the request of the EDID of display device
Breath extracts special letter corresponding with this display device in public information part and specific information part
Breath;And
Signal generating unit, is used for based on described public information part and the specific information corresponding with this interface,
Generate the EDID of this display device.
Display device the most according to claim 6, wherein, in the memory unit, the most of the same race
The specific information of the display device of class is distinguished by using different field.
Display device the most according to claim 7, wherein, described field includes identification of the manufacturer
With at least one in product identification.
Display device the most according to claim 6, wherein, described display device includes VGA
Interface or HDMI, and described EDID information is VGA EDID information or HDMI EDID
Information.
Display device the most according to claim 6, wherein, described signal generating unit is additionally operable to meter
Calculate the check code of the EDID generated.
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CN201510848795.6A CN105892963A (en) | 2015-11-26 | 2015-11-26 | Method for generating extended display identification data EDID and display device |
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CN107424548A (en) * | 2017-09-25 | 2017-12-01 | 郑州云海信息技术有限公司 | The test system and method for a kind of monitor resolution |
CN111309273A (en) * | 2020-02-05 | 2020-06-19 | 深圳创维-Rgb电子有限公司 | EDID data generation method, display device and computer readable storage medium |
CN114286138A (en) * | 2021-01-14 | 2022-04-05 | 海信视像科技股份有限公司 | Display device, external device and multi-view-angle proportion display method |
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CN102097079A (en) * | 2010-11-25 | 2011-06-15 | 倍奥锐(北京)科技有限公司 | Image displaying system and video switching equipment and method |
CN202374347U (en) * | 2011-12-02 | 2012-08-08 | 中国华录·松下电子信息有限公司 | High-definition multimedia interface (HDMI) decoding device capable of dynamically configuring extended display identification data (EDID) |
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CN111309273A (en) * | 2020-02-05 | 2020-06-19 | 深圳创维-Rgb电子有限公司 | EDID data generation method, display device and computer readable storage medium |
CN114286138A (en) * | 2021-01-14 | 2022-04-05 | 海信视像科技股份有限公司 | Display device, external device and multi-view-angle proportion display method |
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