CN106921761A - Display module and electronic equipment - Google Patents
Display module and electronic equipment Download PDFInfo
- Publication number
- CN106921761A CN106921761A CN201510995965.3A CN201510995965A CN106921761A CN 106921761 A CN106921761 A CN 106921761A CN 201510995965 A CN201510995965 A CN 201510995965A CN 106921761 A CN106921761 A CN 106921761A
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- China
- Prior art keywords
- crystal oscillator
- display
- driver element
- spread
- display driver
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The disclosure is directed to a kind of display module and electronic equipment, belong to technical field of mobile terminals.The display module includes:Crystal oscillator, spreading unit, display driver element and display drive IC;Crystal oscillator is electrical connected with spreading unit;Crystal oscillator is electrical connected with display driver element;Display driver element is connected between driving IC with display by transmission line.The disclosure solves the extra EMI protective layers of addition, it is necessary to take larger space in electronic equipment body, and relatively costly problem;Reach and spread-spectrum processing has been done to crystal oscillator using spreading unit; so that data have passed through spread-spectrum processing before transmission; the radiation interference caused when data are transmitted on the transmission line is reduced, EMI protective layers are used in the electronic device so as to eliminate, reduce electronic equipment cost of manufacture.
Description
Technical field
This disclosure relates to field of mobile terminals, more particularly to a kind of display module and electronic equipment.
Background technology
With continuing to develop for mobile terminal, the configuration of each component also more and more higher in mobile terminal, but
The component of height configuration can be interfered to the radiofrequency signal of mobile terminal in the course of the work.
Such as, when the high-resolution display screen of mobile terminal configuration, the GPU (Graphics in mobile terminal
Processing Unit, graphic process unit) dominant frequency it is higher, and GPU pass through MIPI (Mobile Industry
Processor Interface, mobile Industry Processor Interface) transmission line drives IC (Integrated to display
Circuit, integrated circuit) data volume that sends is also larger, and mass data is on MIPI transmission lines when transmitting,
Can produce radiation, and radiofrequency signal to mobile terminal is interfered.Correlation technique is in order to solve mass data
When being transmitted on MIPI transmission lines, the problem interfered to radiofrequency signal, by MIPI transmission lines
Increase extra EMI (Electro Magnetic Interference, electromagnetic pulse interference) protective layer, make MIPI
The radiation rapid decay produced on transmission line, so that the radiation reduced on MIPI transmission lines is done to radiofrequency signal
Disturb.
The content of the invention
The embodiment of the present disclosure provides a kind of display module and electronic equipment.The technical scheme is as follows:
According to the first aspect of the embodiment of the present disclosure, there is provided a kind of display module, the display module includes:
Crystal oscillator, spreading unit, display driver element and display drive IC;
Crystal oscillator is electrical connected with spreading unit;
Crystal oscillator is electrical connected with display driver element;
Display driver element is connected between driving IC with display by transmission line.
Alternatively, the spreading unit is used to carry out crystal oscillator spread-spectrum processing, and spread-spectrum processing is in dominant frequency by crystal oscillator
The spike interference of section is converted into the wide-band interference in predetermined spread spectrum width, and the peak strength of spike interference is big
In the peak strength of wide-band interference.
Alternatively, the crystal oscillator is used for by producing frequency of oscillation after spread-spectrum processing, and the display driver element is used
IC is driven to transmit data to display in transmission line is passed through according to frequency of oscillation.
Alternatively, the spreading unit is electrical connected with display driver element.
Alternatively, the spreading unit is used for the spread spectrum width set according to display driver element, and crystal oscillator is carried out
Spread-spectrum processing.
Alternatively, the crystal oscillator is the inside crystal oscillator or external crystal-controlled oscillation of display driver element.
According to the second aspect of the embodiment of the present disclosure, there is provided a kind of electronic equipment, the electronic equipment is included such as
Display module described in first aspect.
Alternatively display driver element be electronic equipment GPU, CPU (Central Processing Unit, in
Central processor) or MCU (MicroController Unit, micro-control unit).
The technical scheme that the embodiment of the present disclosure is provided can include the following benefits:
By increasing spreading unit in the electronic device, and by the spreading unit to display driver element correspondence
Crystal oscillator do spread-spectrum processing;During the extra EMI protective layers of addition are solved, it is necessary to take electronic equipment body
Larger space, and relatively costly problem;Reach and spread-spectrum processing done to crystal oscillator using spreading unit so that
Data have passed through spread-spectrum processing before transmission, reduce the radiation interference caused when data are transmitted on the transmission line,
EMI protective layers are used in the electronic device so as to eliminate, and reduce electronic equipment cost of manufacture.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory,
The disclosure can not be limited.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows and meets the disclosure
Embodiment, and be used to explain the principle of the disclosure together with specification.
Figure 1A is the structural representation of the display module shown in one exemplary embodiment of the disclosure;
Figure 1B is comparison diagram of the radiation interference intensity before and after spread-spectrum processing on transmission line;
Fig. 2 is the structural representation of the display module shown in the disclosure another exemplary embodiment;
Fig. 3 is the schematic diagram of the electronic equipment that disclosure one embodiment is provided.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following retouches
State when being related to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.
Implementation method described in following exemplary embodiment does not represent all embodiment party consistent with the disclosure
Formula.Conversely, they be only with described in detail in such as appended claims, disclosure some in terms of phase one
The example of cause.
Figure 1A is refer to, it illustrates the knot of the display module 100 shown in one exemplary embodiment of the disclosure
Structure schematic diagram.The display module 100 includes:Crystal oscillator 110, spreading unit 120, display driver element 130
IC140 is driven with display.
Wherein, crystal oscillator 110 is the corresponding crystal oscillator of display driver element 130, and the crystal oscillator 110 can be display
The inside crystal oscillator of driver element 130, or the outer external crystal-controlled oscillation hung over outside display driver element 130.
Display driver element 130 is used to drive IC140 transmitting display datas to display, and accordingly, display is driven
Dynamic IC140 carries out the display of image, the display driver element 130 according to the display data control display screen for receiving
Can be GPU, CPU or MCU etc., the disclosure is not to crystal oscillator 110 and display driver element 130
Type be defined.
The operations such as the execute instruction of display driver element 130, transmission data, are built upon the generation of crystal oscillator 110
On the basis of frequency of oscillation, the frequency of oscillation that crystal oscillator 110 is produced is higher, and display driver element 130 is performed and referred to
Make, transmit the speed of data faster;The frequency of oscillation that crystal oscillator 110 is produced is lower, display driver element 130
Execute instruction, the speed of transmission data are slower.
And crystal oscillator 110 can produce radiation interference while frequency of oscillation is produced, and radiation interference intensity
Peak value can be reached near dominant frequency.Produced because the transmission of display driver element 130 data are built upon crystal oscillator 110
On the basis of raw frequency of oscillation, so when crystal oscillator 110 is operated near dominant frequency, display driver element 130
IC140 is driven to transmit data to display by transmission line, the radiation interference on transmission line can also reach peak value.
The radiation interference can produce influence to other components in electronic equipment, especially to electronic equipment radiofrequency signal
Interference is larger, such as, for the smart mobile phone of some high-resolution display screens of configuration, if not to passing
Radiation interference on defeated line is suppressed, and the signal of smart mobile phone will be affected.
In order to be solved from root when near dominant frequency, the interference of radiation on transmission line to radiofrequency signal is led to
Cross and crystal oscillator 110 is electrical connected with spreading unit 120, crystal oscillator 110 is opened up using spreading unit 120
Frequency is processed.
Wherein, spread-spectrum processing is to disturb crystal oscillator 110 in the spike of primary band to be converted into predetermined spread spectrum width
Interior wide-band interference, wherein, the peak strength of spread-spectrum processing previous peaks interference is more than wideband after spread-spectrum processing
The peak strength of section interference.By after spread-spectrum processing, the radiation interference that crystal oscillator 110 is produced near dominant frequency not
Spike aggregation again, but keep gentle in certain frequency width near dominant frequency, and in relatively low radiation interference
Strength level.
Due to being electrical connected between crystal oscillator 110 and display driver element 130, and display driver element 130 with
Display drive it is connected by transmission line 150 between IC140, crystal oscillator 110 by spreading unit 120 spread spectrum
After treatment, frequency of oscillation is produced so that display driver element 130 can be according to the frequency of oscillation, by passing
Defeated line 150 drives IC140 transmission data to display, wherein, the transmission line 150 can be MIPI transmission lines.
Display driver element 130 drives IC140 to send data according to the frequency of oscillation after treatment to display, i.e.,
The data transmitted on transmission line 150 have passed through spread-spectrum processing, the radiation interference that data are produced in transmitting procedure,
Also become in order to the wide-band in predetermined spread spectrum width is done by the spike interference before non-spread-spectrum processing in primary band
Disturb, the peak strength of radiation interference is greatly reduced, and stabilization is in reduced levels.
Schematically, before spread-spectrum processing and after spread-spectrum processing, radiation interference intensity and frequency on transmission line 150
As shown in Figure 1B, wherein X-axis represents frequency to relation between rate, and Y-axis represents the radiation interference on transmission line
Intensity.It will be apparent that before spread-spectrum processing, on transmission line near dominant frequency (i.e. 1000MHz in figure)
Radiation interference into needle pattern, and by after spread-spectrum processing, (i.e. spread spectrum is wide for certain frequency width near dominant frequency
Degree) in, the radiation interference intensity decreases on transmission line, and it is more steady.
By after spread-spectrum processing, 150 radiation interference intensity is reduced on transmission line, when the radiation is dry
It is cost-effective when disturbing intensity decreases to predetermined strength, you can save EMI protective layers on transmission line 150;And
And, due to by after spread-spectrum processing, the constant interval of radiation interference intensity reduces and certain near dominant frequency
Stabilization is kept in frequency range, the radio frequency unit in electronic equipment can enter to the radiation interference intensity of the stabilization
Row filtering, so as to further reduce the radiation interference on transmission line, improves the quality of radiofrequency signal, the disclosure
The follow-up optimization processing that radio frequency unit is carried out is not defined.
In sum, the display module that the present embodiment is provided, by increasing spreading unit in the electronic device,
And spread-spectrum processing is done to the corresponding crystal oscillator of display driver element by the spreading unit;Solve addition extra
EMI protective layers are, it is necessary to take larger space in electronic equipment body, and relatively costly problem;Reach
Spread-spectrum processing is done to crystal oscillator using spreading unit so that data have passed through spread-spectrum processing before transmission, reduce
The radiation interference caused when data are transmitted on the transmission line, is protected using EMI in the electronic device so as to eliminate
Sheath, reduces electronic equipment cost of manufacture.
Fig. 2 is refer to, it illustrates the knot of the display module 200 shown in the disclosure another exemplary embodiment
Structure schematic diagram.The display module 200 includes:Crystal oscillator 210, spreading unit 220, display driver element 230
IC240 is driven with display.
Similar to the display module shown in above-mentioned Figure 1A, crystal oscillator 210 is electrical connected with spreading unit 220,
Crystal oscillator 210 is electrical connected with display driver element 230, and display driver element 230 drives IC240 with the display
Between by transmission line 250 be connected.
In order that the radiofrequency signal of electronic equipment is further optimized, in a kind of possible implementation method,
As shown in Fig. 2 spreading unit 220 is also electrical connected with display driver element 230, driven for receiving display
The spread spectrum width that moving cell 230 is set, and spread-spectrum processing is carried out to crystal oscillator 210 according to the spread spectrum width.
Wherein, the spread spectrum width refer to positioned at primary band spike interference be converted into wideband interference after, wideband interference
Corresponding frequency separation size.Such as, when spreading unit receives the spread spectrum width of display driver element setting
During for 200MHz, by after spread-spectrum processing, the spike interference in 1000MHz originally be converted into 900 to
The wideband interference of 1100Mhz.Because the emittance total amount on transmission line keeps constant, so by widening
The spread spectrum width of wideband interference, the peak value of radiation interference intensity can be reduced further, so as to reduce spoke
Blackberry lily is disturbed, and improves the radiofrequency signal quality of electronic equipment.
In sum, the display module that the present embodiment is provided, by increasing spreading unit in the electronic device,
And spread-spectrum processing is done to the corresponding crystal oscillator of display driver element by the spreading unit;Solve addition extra
EMI protective layers are, it is necessary to take larger space in electronic equipment body, and relatively costly problem;Reach
Spread-spectrum processing is done to crystal oscillator using spreading unit so that data have passed through spread-spectrum processing before transmission, reduce
The radiation interference caused when data are transmitted on the transmission line, is protected using EMI in the electronic device so as to eliminate
Sheath, reduces electronic equipment cost of manufacture.
In the present embodiment, it is electrical connected with display driver element by by spreading unit, and is driven according to display
The spread spectrum width that unit is set, carries out spread-spectrum processing so that spread-spectrum processing can be adjusted in real time to crystal oscillator,
The radiation interference on transmission line is further reduced, radiofrequency signal quality is improved.
Easy full of beard and, above-mentioned spread-spectrum processing can be also used for transmitting number between touch-control driver element and touch-control IC
According to or, transmitting data etc. between processor and various kinds of sensors, above-described embodiment is only used with spread-spectrum processing
Drive IC transmission data instances to illustrate to display in display driver element, the disclosure is not constituted and is limited.
Fig. 3 is refer to, it illustrates the schematic diagram of the electronic equipment shown in one exemplary embodiment of the disclosure.
The present embodiment is schematically illustrated so that the electronic equipment is as smart mobile phone as an example, the disclosure is not constituted and is limited
It is fixed.
The electronic equipment includes the display module shown in Figure 1A or Fig. 2, and the display module includes:Crystal oscillator
310th, spreading unit 320, display driver element 330 and display drives IC340.
Wherein, as shown in figure 3, crystal oscillator 310, spreading unit 320, display driver element 330 can be set
Put inside smart mobile phone on PCB350 (Printed Circuit Board, printed circuit board (PCB)), display drives
IC340 is then electrical connected with the display screen 360 of smart mobile phone, and is fixed on the lower section of display screen 360, for controlling
Display screen processed 360 is shown.Display driver element 330 and display are driven between IC340, then by MIPI
Transmission line 370 is connected.It should be noted that also include other necessary parts in the electronic equipment, such as
For electronic equipment provides battery 380 of electric energy etc., the present embodiment will not be repeated here.
Those skilled in the art will readily occur to this public affairs after considering specification and putting into practice invention disclosed herein
Other embodiments opened.The application is intended to any modification, purposes or the adaptations of the disclosure,
These modifications, purposes or adaptations follow the general principle of the disclosure and are not disclosed including the disclosure
Common knowledge or conventional techniques in the art.Description and embodiments are considered only as exemplary
, the true scope and spirit of the disclosure are pointed out by following claim.
It should be appreciated that the disclosure is not limited to the accurate knot for being described above and being shown in the drawings
Structure, and can without departing from the scope carry out various modifications and changes.The scope of the present disclosure is only by appended
Claim is limited.
Claims (8)
1. a kind of display module, it is characterised in that the display module includes:
Crystal oscillator, spreading unit, display driver element and display driving integrated circuit IC;
The crystal oscillator is electrical connected with the spreading unit;
The crystal oscillator is electrical connected with the display driver element;
The display driver element is connected between driving IC with the display by transmission line.
2. display module according to claim 1, it is characterised in that the spreading unit is used for institute
Stating crystal oscillator carries out spread-spectrum processing, and the spread-spectrum processing is that the spike interference by the crystal oscillator in primary band is converted into
Wide-band interference in predetermined spread spectrum width, the peak strength of the spike interference is dry more than the wide-band
The peak strength disturbed.
3. display module according to claim 2, it is characterised in that
The crystal oscillator is used for by producing frequency of oscillation, the display driver element to use after the spread-spectrum processing
According to the frequency of oscillation by the transmission line to it is described display drive IC transmit data.
4. according to any described display module of claims 1 to 3, it is characterised in that the spreading unit
It is electrical connected with the display driver element.
5. display module according to claim 4, it is characterised in that the spreading unit is used for basis
The spread spectrum width that the display driver element is set, spread-spectrum processing is carried out to the crystal oscillator.
6. according to any described display module of claim 1 to 5, it is characterised in that the crystal oscillator is institute
State the inside crystal oscillator or external crystal-controlled oscillation of display driver element.
7. a kind of electronic equipment, it is characterised in that the electronic equipment is included as claim 1 to 6 is any
Described display module.
8. electronic equipment according to claim 7, the display driver element is the electronic equipment
Graphic process unit GPU, central processor CPU or micro-control unit MCU.
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CN201510995965.3A CN106921761B (en) | 2015-12-25 | 2015-12-25 | Display module and electronic device |
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CN201510995965.3A CN106921761B (en) | 2015-12-25 | 2015-12-25 | Display module and electronic device |
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CN106921761A true CN106921761A (en) | 2017-07-04 |
CN106921761B CN106921761B (en) | 2020-03-03 |
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Cited By (1)
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CN111431632A (en) * | 2020-03-26 | 2020-07-17 | 维沃移动通信有限公司 | Signal transmission method and electronic equipment |
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CN101123443A (en) * | 2006-08-07 | 2008-02-13 | 宏碁股份有限公司 | Electronic device, interference preventive system and its method with antenna |
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