CN209216080U - A kind of recording display EDID device - Google Patents
A kind of recording display EDID device Download PDFInfo
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- CN209216080U CN209216080U CN201920144601.8U CN201920144601U CN209216080U CN 209216080 U CN209216080 U CN 209216080U CN 201920144601 U CN201920144601 U CN 201920144601U CN 209216080 U CN209216080 U CN 209216080U
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Abstract
The utility model discloses a kind of recording display EDID devices, are related to display burning technical field.It includes the parallel port module being successively electrically connected, I2C analog module and I2C distributor circuit module, further includes interface module；The interface module includes USB interface, DVI interface and HDMI interface, the I2C distributor circuit module is electrically connected with USB interface, DVI interface and HDMI interface respectively.The technical program passes through I2C distributor circuit module is by I2C analog circuit is distributed to distinct interface, it can be achieved that carry out the function of programming to display distinct interface, simple and convenient, programming is high-efficient.
Description
Technical field
The utility model relates to display burning technical field more particularly to a kind of recording display EDID devices.
Background technique
EDID:Extended Display Identification Data (extending display identification data) is a kind of VESA
Standard data format, wherein including the performance parameter in relation to display, including supplier, maximum image size, color setting, factory
Quotient pre-sets, the limitation of frequency range and the information such as display name and sequence number.Production sequence number etc. as involved in EDID
Specific information so that the EDID content of every display of same model is all not exactly the same, therefore in plant produced, needs
One EDID replication tool.
The signal input port of general display includes VGA, DVI and HDMI, and in the prior art, each port requires point
I is not passed through using EDID replication tool2C bus (SCL, SDA) carrys out the corresponding EDID information of programming, aobvious in the production of plant produced line
When showing device, burning low efficiency expends working hour.
Utility model content
Technical problem to be solved in the utility model is how continuously successively to be realized by using a replication tool
The EDID programming of one multiple input port of display.
To solve the above-mentioned problems, the utility model proposes following technical schemes:
A kind of recording display EDID device, including be successively electrically connected parallel port module, I2C analog module and I2C distribution
Circuit module further includes interface module；The interface module includes USB interface, DVI interface and HDMI interface, the distribution electricity
Road module is electrically connected with USB interface, DVI interface and HDMI interface respectively.
Further technical solution is for it, the I2C analog module is equipped with phase inverter, the input terminal of the phase inverter
It is electrically connected with parallel port module, the output end output SDA data signal line and SCL clock signal wire of the phase inverter.
Further technical solution is for it, the I2C distributor circuit module is equipped with first input end and the second input terminal, institute
It states first input end to be electrically connected with SCL clock signal wire, second input terminal is electrically connected with SDA data signal line.
Further technical solution is for it, the I2It is defeated that C distributor circuit module is additionally provided with VGA_SCL output end, VGA_SDA
Outlet, DVI_SCL output end, DVI_SDA output end, HDMI_SCL output end and HDMI_SDA output end；The VGA_SCL
The SCL signal end of output end and USB interface is electrically connected, and the SDA signal end of the VGA_SDA output end and USB interface is electrically connected；It is described
The SCL signal end of DVI_SCL output end and DVI interface is electrically connected, the SDA signal end electricity of the DVI_SDA output end and DVI interface
Even；The SCL signal end of the HDMI_SCL output end and HDMI interface is electrically connected, the HDMI_SDA output end and HDMI interface
SDA signal end is electrically connected.
Further technical solution is for it, and the parallel port module is equipped with the first control output end and the second control output end,
The I2C distributor circuit module is equipped with the first controlled input end and the second controlled input end；First control output end and
One controlled input end is electrically connected, and second control output end and the second controlled input end are electrically connected.
Further technical solution is for it, further includes ESD device, and the ESD device is electrically connected with parallel port module.
Further technical solution is for it, further includes power supply module.
Compared with prior art, the attainable technical effect of the utility model institute includes: that the technical program passes through distribution electricity
Road module is by I2C analog circuit is distributed to distinct interface, it can be achieved that carrying out the function of programming to display distinct interface, and operation is simple
List is convenient, programming is high-efficient.
Detailed description of the invention
In order to illustrate more clearly of the utility model embodiment technical solution, will make below to required in embodiment description
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the schematic diagram of recording display EDID device provided in this embodiment；
Fig. 2 is parallel port module and I2What the circuit diagram and parallel port module of C analog module connection were connect with ESD device
Circuit diagram；
Fig. 3 is I2C distributor circuit module respectively with I2C analog module and the circuit diagram of interface module connection；
Fig. 4 is burning process schematic.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, the technical solution in embodiment is carried out it is clear, complete
Ground describes, and similar reference numerals represent similar component in attached drawing.Obviously, will be described below embodiment is only that this is practical
Novel a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, belongs to the model of the utility model protection
It encloses.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, the presence or addition of element, component and/or its set.
It is also understood that specific merely for the sake of describing in this utility model embodiment term used in the description
The purpose of embodiment and be not intended to limit the utility model embodiment.Such as in the utility model embodiment specification and appended power
As used in sharp claim, other situations unless the context is clearly specified, otherwise " one " of singular, "one"
And "the" is intended to include plural form.
Referring to Fig. 1, the present embodiment provides a kind of recording display EDID devices, the EDID data for storing up calculator memory
Programming is to display.The recording display EDID device includes the parallel port module being successively electrically connected, I2C analog module and I2C
Distributor circuit module further includes interface module；The interface module includes USB interface, DVI interface and HDMI interface, and described point
It is electrically connected respectively with USB interface, DVI interface and HDMI interface with circuit module.
In specific implementation, the input terminal of parallel port module is electrically connected by the parallel port of parallel port connecting line and computer, parallel port module
Output end and I2C analog module is electrically connected.I2C analog module is used to the parallel port signal that parallel port exports being converted into I2C
Bus signals.I2The input terminal of C distributor circuit inputs I2C bus signals, by I2C bus signals are distributed into 3 groups of independent I2C is total
Line is transmitted to USB interface, DVI interface or HDMI interface.
Referring to fig. 4, recording display EDID device provided by the utility model is used for the EDID data for storing up calculator memory
Programming is to display.Wherein, computer is for storing EDID burn recording software and EDID data.The input of EDID cd-rom recorder is by simultaneously
Mouth connecting line is connect with computer, and output with the connecting line of display corresponding interface with display by connecting, thus will meter
The EDID data programming stored in calculation machine is to display.
Recording display EDID device provided in this embodiment can be by the EDID data programming being stored in computer in having
In the display of USB interface, DVI interface and/or HDMI interface, connection is simple, and burning is high-efficient.
Referring to fig. 2, in one embodiment, the I2C analog module is equipped with phase inverter, the input terminal of the phase inverter
It is electrically connected with parallel port module, the output end output SDA data signal line and SCL clock signal wire of the phase inverter.
As seen from the figure, in a certain embodiment, such as in the present embodiment, the input terminal electricity of parallel port CN3 and phase inverter 74LS05
Even, the output end output simulation I of phase inverter 74LS052The SDA data signal line and SCL clock signal wire of C bus.Specifically,
3 feet of parallel port CN3 are electrically connected with 11 feet of phase inverter 74LS05, and 9 feet of parallel port CN3 are electrically connected with 1 foot of phase inverter 74LS05, parallel port
11 feet of CN3 are electrically connected with 4 feet of phase inverter 74LS05, and 15 feet of parallel port CN3 are electrically connected with 8 feet of phase inverter 74LS05, parallel port CN3
5 feet of 17 feet and phase inverter 74LS05 be electrically connected；2 feet of phase inverter 74LS05 and 3 feet output SDA data signal line, the output of 6 feet
SCL clock signal wire.
Referring to Fig. 3, in one embodiment, I2C distributor circuit module is equipped with first input end and the second input terminal, phase inverter
The output end of 74LS05 exports I2The SDA data signal line of C bus and the second input terminal of distributor circuit module be electrically connected, SCL when
Clock signal wire and I2The first input end of C distributor circuit module is electrically connected.
From the figure 3, it may be seen that in a certain embodiment, such as in the present embodiment, I2C distributor circuit module is equipped with analog switching circuit
74HC4052, wherein 13 pins of 74HC4052 are first input end, and 3 pins are the second input terminal；By I2C analog circuit mould
The SCL clock signal wire of block output and 13 pins of 74HC4052 are electrically connected, 3 pins of SDA data signal line and 74HC4052 electricity
Even.
The distributor circuit module is additionally provided with VGA_SCL output end, VGA_SDA output end, DVI_SCL output end, DVI_
SDA output end, HDMI_SCL output end and HDMI_SDA output end；The VGA_SCL output end and the SCL of USB interface believe
Number end is electrically connected, and the SDA signal end of the VGA_SDA output end and USB interface is electrically connected；The DVI_SCL output end and DVI interface
SCL signal end be electrically connected, the SDA signal end of the DVI_SDA output end and DVI interface is electrically connected；The HDMI_SCL output end
It is electrically connected with the SCL signal end of HDMI interface, the SDA signal end of the HDMI_SDA output end and HDMI interface is electrically connected.
From the figure 3, it may be seen that in a certain embodiment, such as in the present embodiment, I2C distributor circuit module is equipped with analog switching circuit
74HC4052.Wherein, 15 pins of 74HC4052 are VGA_SCL output end, and 2 pins are VGA_SDA output end, and 14 pins are
DVI_SCL output end, 5 pins are DVI_SDA output end, and 12 pins are HDMI_SCL output end, and 1 pin is HDMI_SDA output
End.
I2C bus signals pass through I2C distributor circuit module assignment is at 3 groups of independent I2C bus signals, are connected respectively
To VGA, DVI, the SCL of HDMI interface, SDA signal end.In burning EDID, the VGA of burning plate, DVI, HDMI interface make respectively
It is connected to display corresponding interface with corresponding connecting line, thus makes I2When the SDA data signal line and SCL of the output of C analog circuit
The allocated circuit of clock signal wire independently exports I2C bus is connected on the interface of display, is respectively coupled on these interfaces
There is EEPROM, for specially storing EDID data, completes burning.
In a specific implementation, the parallel port module is equipped with the first control output end and the second control output end, the I2C
Distributor circuit module is equipped with the first controlled input end and the second controlled input end；First control output end and first controlled defeated
Enter end to be electrically connected, second control output end and the second controlled input end are electrically connected.
By Fig. 2 and Fig. 3 it is found that in a certain embodiment, such as in the present embodiment, 4 human hair combing wastes of parallel port CN3 go out the first control letter
Number SEL_A, 5 foot second control signal SEL_B；I210 feet of the 74HC4052 of C distributor circuit module receive first control signal
SEL_A, 9 feet receive second control signal SEL_B.Wherein 4 feet of parallel port CN3 are the first control output end, and 5 feet are the second control
Output end；I210 feet of the 74HC4052 of C distributor circuit module are the first controlled input end, and 9 feet are the second controlled input end.
In the present embodiment, gated in turn by two control signal SEL_A, SEL_B that parallel port issues to control timesharing
The independent I in tri- tunnel VGA, DVI or HDMI2C bus.For example, in one embodiment, need successively sequence burning VGA, DVI and
The EDID of tri- ports HDMI: the 4 feet output SEL_A of default parallel port is low level, and the 5 feet output SEL_B of parallel port is high level
Control the VGA port of burning display, level state is always maintained at VGA port burning completion, during this, SCL signal line with
The connection of VGA_SCL signal wire approximation, the connection approximate with VGA_SDA signal wire of SDA signal line.The 4th foot output of default parallel port
SEL_A is high level, and the 5th foot output SEL_B of parallel port is the port DVI of low level control burning display, level state one
Directly remain to the port DVI burning completion, during this, the connection approximate with DVI_SCL signal wire of SCL signal line, SDA signal line and
The connection of DVI_SDA signal wire approximation.The 4th foot output SEL_A of default parallel port is low level, and the 5th foot output SEL_B of parallel port is
The port HDMI of low level control burning display, level state are always maintained at the port HDMI burning completion, during this, SCL
Signal wire connection approximate with HDMI_SCL signal wire, the connection approximate with HDMI_SDA signal wire of SDA signal line.
The VGA_SDA and VGA_SCL of display VGA port be correspondingly connected with the USB interface of cd-rom recorder SDA signal end and
SCL signal end；The DVI_SDA and DVI_SCL of the port display DVI are correspondingly connected with the SDA signal end of the DVI interface of cd-rom recorder
With SCL signal end；The HDMI_SDA and HDMI_SCL of the port display HDMI are correspondingly connected with the SDA of the HDMI interface of cd-rom recorder
Signal end and SCL signal end.
VGA, the DVI and/or HDMI interface of the present embodiment according to wanted burning, the two control signals issued by parallel port
Select the interface of a control burning, so that the burning process of display distinct interface is completed one by one, without converting cd-rom recorder,
Improve programming efficiency.
In one embodiment, recording display EDID device provided by the utility model further includes ESD (electrostatic impedor) device
Part, the ESD device are electrically connected with parallel port module.Electrostatic breakdown internal circuit is generated when preventing parallel port CN3 from plugging cable.
Continuing with referring to fig. 2, in some embodiments, such as the present embodiment, the ESD device is GESDA6V8UL, and
3 feet of mouthful CN3 and 1 foot of ESD device are electrically connected, and 9 feet of parallel port CN3 and 3 feet of ESD device are electrically connected, 11 feet of parallel port CN3 with
6 feet of ESD device are electrically connected, and 15 feet of parallel port CN3 and 4 feet of ESD device are electrically connected, the 2 feet ground connection of ESD device.In other implementations
Also the ESD device of other models may be selected in example, the utility model is not specifically limited in this embodiment.
In one embodiment, recording display EDID device provided by the utility model further includes power supply module, the power supply
Module is USB5V power voltage supply, and the connection type of power supply module is known to those skilled in the art, the utility model does not do herein
It repeats.
In one embodiment, recording display EDID device provided by the utility model further includes power supply module, the power supply
Module is direct current 12V power voltage supply, and the connection type of power supply module is known to those skilled in the art, and the utility model is herein not
It repeats.
In one embodiment, recording display EDID device provided by the utility model further includes power supply module, the power supply
Module includes USB5V power voltage supply and direct current 12V power voltage supply, and the connection type of power supply module is that those skilled in the art are ripe
Know, this will not be repeated here for the utility model.Different usage scenarios and different use conditions are suitable for using two kinds of power voltage supplies, are mentioned
High applicability.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in some embodiment
Part, reference can be made to the related descriptions of other embodiments.
The above is specific embodiment of the present utility model, but the protection scope of the utility model is not limited to
This, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in various etc.
The modifications or substitutions of effect, these modifications or substitutions should be covered within the scope of the utility model.Therefore, this is practical new
The protection scope of type should be subject to the protection scope in claims.
Claims (7)
1. a kind of recording display EDID device, which is characterized in that including be successively electrically connected parallel port module, I2C analog module with
And I2C distributor circuit module, further includes interface module；The interface module includes USB interface, DVI interface and HDMI interface, institute
State I2C distributor circuit module is electrically connected with USB interface, DVI interface and HDMI interface respectively.
2. recording display EDID device as described in claim 1, which is characterized in that the I2C analog module is equipped with reverse phase
Device, input terminal and the parallel port module of the phase inverter are electrically connected, the output end output SDA data signal line and SCL of the phase inverter
Clock cable.
3. recording display EDID device as claimed in claim 2, which is characterized in that the I2C distributor circuit module is equipped with first
Input terminal and the second input terminal, the first input end are electrically connected with SCL clock signal wire, second input terminal and SDA data
Signal wire is electrically connected.
4. recording display EDID device as claimed in claim 3, which is characterized in that the I2C distributor circuit module is additionally provided with
VGA_SCL output end, VGA_SDA output end, DVI_SCL output end, DVI_SDA output end, HDMI_SCL output end and
HDMI_SDA output end；The SCL signal end of the VGA_SCL output end and USB interface is electrically connected, the VGA_SDA output end with
The SDA signal end of USB interface is electrically connected；The SCL signal end of the DVI_SCL output end and DVI interface is electrically connected, the DVI_SDA
The SDA signal end of output end and DVI interface is electrically connected；The SCL signal end of the HDMI_SCL output end and HDMI interface is electrically connected, institute
The SDA signal end for stating HDMI_SDA output end and HDMI interface is electrically connected.
5. recording display EDID device as claimed in claim 4, which is characterized in that it is defeated that the parallel port module is equipped with the first control
Outlet and the second control output end, the I2C distributor circuit module is equipped with the first controlled input end and the second controlled input end；Institute
It states the first control output end and the first controlled input end is electrically connected, second control output end and the second controlled input end are electrically connected.
6. recording display EDID device as described in any one in claim 1-5, which is characterized in that it further include ESD device, it is described
ESD device is electrically connected with parallel port module.
7. recording display EDID device as claimed in claim 6, which is characterized in that further include power supply module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920144601.8U CN209216080U (en) | 2019-01-28 | 2019-01-28 | A kind of recording display EDID device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920144601.8U CN209216080U (en) | 2019-01-28 | 2019-01-28 | A kind of recording display EDID device |
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| Publication Number | Publication Date |
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| CN209216080U true CN209216080U (en) | 2019-08-06 |
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| CN201920144601.8U Active CN209216080U (en) | 2019-01-28 | 2019-01-28 | A kind of recording display EDID device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111048050A (en) * | 2019-11-19 | 2020-04-21 | 南京众核电子科技有限公司 | Communication compatibility method, device and system |
-
2019
- 2019-01-28 CN CN201920144601.8U patent/CN209216080U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111048050A (en) * | 2019-11-19 | 2020-04-21 | 南京众核电子科技有限公司 | Communication compatibility method, device and system |
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