CN103941436B - Display module testing and displaying system and application method thereof - Google Patents
Display module testing and displaying system and application method thereof Download PDFInfo
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- CN103941436B CN103941436B CN201410126366.3A CN201410126366A CN103941436B CN 103941436 B CN103941436 B CN 103941436B CN 201410126366 A CN201410126366 A CN 201410126366A CN 103941436 B CN103941436 B CN 103941436B
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- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000003860 storage Methods 0.000 claims abstract description 13
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000011022 operating instruction Methods 0.000 abstract 2
- 230000008859 change Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- 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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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Abstract
The invention belongs to the technical field of display, and particularly relates to a display module testing and displaying system and an application method thereof. The system does not need to be restarted during display module replacement. The display module testing and displaying system comprises a storage unit, a control unit electrically connected with the storage unit, an interface unit electrically connected with the control unit and an operating unit electrically connected with the control unit. The storage unit is used for storing data information used for testing and displaying. The control unit is used for converting image information in the data information stored in the storage unit into image control signals. The interface unit is used for being connected with a display module to be tested or displayed and is further used for converting the image control signals provided by the control unit into display signals and providing the display signals to the display module so as to drive the display module to conduct displaying. The operating unit is used for receiving operating instructions of a user and transmitting the operating instructions to the control unit. The control unit is further used for receiving operating signals and controlling the interface unit to stop or recover output of the display signals according to the operating signals in the running state.
Description
Technical field
The invention belongs to display technology field is and in particular to a kind of display module is tested and display systems and its user
Method.
Background technology
In the production process of display floater, typically can be in display module（Including array base palte, color membrane substrates, liquid crystal layer
Deng）Connect after the completion of preparation but not yet corresponding drive circuit and first carry out display module performance with before forming display floater
Test；In addition, in order to occupy the favourable market share, display module also frequently appears in various exhibition halls, this just needs to be aobvious
Show module provide a kind of be provided that substantial amounts of picture for test or show system, also require simultaneously this system be easy to operation,
Easy to carry.
Existing display module test system can provide display signal for display module, thus driving display module to be shown
Show.
But, when to change be test for display module when it is necessary to first close display module test system, afterwards just can be by
Display module is pulled down from display module test system and is loaded onto new display module, finally reopens display module test again
System, this is because when display module continues output display signal, handling display module can cause to equipment to damage；And more than
Problem result in the troublesome poeration changing display module, and time-consuming.
Content of the invention
The technical problem to be solved is to change display mould for the test of existing display module and display systems
The problem needing during group to restart, provides a kind of display module test and display systems and its using method, it changes display module
When do not need to restart, simple to operate, take few.
Solve present invention problem and be employed technical scheme comprise that a kind of display module test and display systems, its bag
Include：
Memory element, it is used for storage test and the data message shown；
The control unit electrically connecting with described memory element, it is used in the data message of described memory element storage
Image information is converted to graphics control signals；
The interface unit electrically connecting with described control unit, it is used for connecting display module that is to be tested or showing, interface
The graphics control signals that unit is additionally operable to provide described control unit are converted to display signal, and provide for described display module
Display signal is to drive display module to show；
The manipulation unit electrically connecting with described control unit, it is used for the manipulation instruction of receive user and passes manipulation instruction
Give described control unit；
And,
Described control unit is additionally operable to receive described manipulation signal, and according to described manipulation letter in the state of remaining on
Number control described interface unit to interrupt or recover the output of display signal.
Preferably, described interface unit is additionally operable to provide display required backlight for display module.
Preferably, described interface unit includes：The MIPI bridging board electrically connecting with control unit, it is used for receiving and controls
Described image control signal is simultaneously converted to MIPI signal by the graphics control signals of unit offer；Electrically connect with MIPI bridging board
Connecting plate, it is used for connecting described display module, and the MIPI signal that described connecting plate is additionally operable to provide MIPI bridging board provides
To display module, and provide display required backlight for described display module.
Preferably, described MIPI bridging board includes：Bridging chip, it is used for for graphics control signals being converted to MIPI letter
Number；Signal input/output board, it is electrically connected with bridging chip and control unit, for the image control providing control unit
Signal is transmitted to described bridging chip, and by the MIPI signal output of described bridging chip offer to connecting plate.
Preferably, described MIPI bridging board also includes：The clock board electrically connecting with described bridging chip, it is used for making institute
State control unit synchronous with the clock of interface unit；The power panel electrically connecting with described bridging chip, it is used for as described bridge joint
Chip power supply.
Preferably, described connecting plate includes：The adapter electrically connecting with described MIPI bridging board, it is used for will be described
The MIPI signal that MIPI bridging board provides is transmitted to described display module；The backlight module being electrically connected with described adapter, is used for
There is provided display required backlight for described display module；Backlight module include the driving chip electrically connecting with described adapter and with
At least one light source of described driving chip electrical connection, described driving chip is used for controlling described light source luminescent.
Preferably, the bandwidth of described MIPI bridging board is at least 1Gbps, including at least 4 groups of passages.
Preferably, described memory element is electrically connected with described control unit by interface；Or described memory element and institute
State control unit to become one.
Preferably, described control unit is the processor of more than dominant frequency 1GHz.
Solve present invention problem and be employed technical scheme comprise that a kind of above-mentioned display module test and display systems
Using method, it includes：
S1, by described display module test be connected with display module with display systems, and display module is tested or
Show；
S2, by manipulate unit send manipulation instruction to control unit, described control unit in the state of remaining on,
Described interface unit is controlled to interrupt the output of display signal according to described manipulation instruction；
S3, by described display module from display module test with display systems unload, another display module is connected to
In described display module test and display systems；
S4, by manipulate unit send manipulation instruction to control unit, described control unit is according to described manipulation instruction control
Make the output that described interface unit recovers display signal.
In the display module test of the present invention and display systems, manipulation can be sent to control unit by manipulation unit and refer to
Order, so that interface unit interrupts the output of display signal（Control unit still remains on）, so, you can in the feelings do not restarted
Directly change display module under condition, simplify operation, time-consuming.
Brief description
Fig. 1 is the structured flowchart of display module test and display systems in the embodiment of the present invention 1；
In figure：10- control unit；11- terminal interface；12-RS232 serial ports；13-USB interface；At 14-ARM A8
Reason device；20- memory element；30- manipulates unit；40- interface unit；41-MIPI bridging board；411- signal input/output board；
412- bridging chip；413- clock board；414- power panel；42- connecting plate；421- backlight module；422- adapter；50-
Display module that is to be tested or showing.
Specific embodiment
For making those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and specific embodiment party
Formula is described in further detail with display systems to display module of the present invention test.
A kind of display module test and display systems, it includes：
Memory element, it is used for storage test and the data message shown；
The control unit electrically connecting with described memory element, it is used in the data message of described memory element storage
Image information is converted to graphics control signals；
The interface unit electrically connecting with described control unit, it is used for connecting display module that is to be tested or showing, interface
The graphics control signals that unit is additionally operable to provide described control unit are converted to display signal, and provide for described display module
Display signal is to drive display module to show；
The manipulation unit electrically connecting with described control unit, it is used for the manipulation instruction of receive user and passes manipulation instruction
Give described control unit；
And,
Described control unit is additionally operable to receive described manipulation signal, and according to described manipulation letter in the state of remaining on
Number described interface unit is controlled to interrupt the output of display signal.
Specifically, as shown in figure 1, the display module test of the present embodiment and display systems include control unit 10, storage
Unit 20, manipulation unit 30 and interface unit 40.Control unit 10 and memory element 20, manipulation unit 30 and interface unit
40 are electrically connected.Memory element 20 is used for storage test and (includes test program and image letter with the data message shown
Breath etc.)；Manipulation unit 30 is used for providing man-machine interface, so that user can send manipulation instruction to control unit；Control unit 10
Image information for storing memory element 20 is converted to graphics control signals（In the present embodiment, certainly taking rgb signal as a example
It is alternatively the signal of the other forms such as RGBW）, and rgb signal is sent to interface unit 40；Meanwhile, control unit 10 receives
To from manipulation unit 30 manipulation signal when, also can in the state of remaining on control interface unit 40 interrupt signal defeated
Go out.Interface unit 40 is used for connecting display module 50 that is to be tested or showing and by above-mentioned rgb signal（Graphics control signals）Turn
It is changed to the display signal being adapted with display module 50 that is to be tested or showing（As MIPI signal, in the present embodiment as
Example）, use MIPI afterwards（Mobile Industry Processor Interface, mobile Industry Processor Interface）Signal control
Display module processed is shown.Wherein, display module 50 that is to be tested or showing can be the height for testing, showing and promote
Resolution display module, such as resolution are that the small size of HD720 (720 × 1280) and FHD (1200 × 1920) shows mould
Group, is particularly suited for the liquid crystal display module of mobile phone etc..
In the display module test of the present embodiment and display systems, behaviour can be sent by manipulating unit 30 to control unit 10
Control instruction, so that interface unit 40 interrupts the output of MIPI signal（But control unit 10 still remains on）, so, you can
Directly change display module 50 in the case of not restarting, simplify operation, time-consuming.
In the present embodiment, in order to obtain faster processing speed and fluent image measurement or bandwagon effect, control single
Unit is preferably the processor of more than dominant frequency 1GHz, and such as reduced instruction set computer microprocessor, can be more preferably ARM A8 processor（For
ARM A8 platform chip, such as Cortext-A8 core board）, embedded linux system or android system（Preferably Linux system
System）, the dominant frequency of Cortext-A8 is 1GHz.Compared with display module test system of the prior art, using the place of ARM framework
Reason device, due to arm processor there is the exploitation of oneself and debugging system so that the function of display module test and display systems more
Powerful, exploitation is simpler, and cost is also lower.
Preferably, interface unit 40 can also provide display required backlight for display module.
Wherein, interface unit 40 includes MIPI bridging board 41 and the connecting plate 42 being electrically connected with.10 setting in control unit
There is rgb signal output interface（Not shown in Fig. 1）, MIPI bridging board 41 electrically connected with rgb signal output interface, for by RGB
Signal is converted to MIPI signal and exports to connecting plate 42；Connecting plate 42 is then used for display module 50 that is to be tested or showing even
Connect, and by MIPI signal output to display module 50, that is, rgb signal output interface is by MIPI bridging board 41 and to connect
Plate 42 and the outside RGB standard interface being connected for the high-resolution display module tested, show and promote.Meanwhile, connecting plate
42 are additionally operable to provide backlight for display module 50.
Preferably, MIPI bridging board includes at least 4 groups passages, and the maximum bandwidth of each passage is at least up to 1Gbps（I.e.
The peak of the data transmission bauds of every paths is at least 1Gbps）, support that 3D figure is smooth and run, can support HD720 and
The resolution of FHD, and support a large amount of pictures and 1080P video playback.In the present embodiment, rgb signal output interface exports
Signal includes black, white, the various modes such as red, green, blue, GTG, colour color signals.4 data in MIPI bridging board 41
As long as the public one group of clock line of passage is that is to say, that 4 passages also 10 lines.For the resolution of HD1080P, required
The band wanted is a width of：1920 × 1080 × 60 frames × 24bit=3Gbps, 4 passages of MIPI bridging board 41 can meet demand.This reality
Apply display module test and the display systems in example, using the place of inexpensive, the high configuration developed based on ARM (Cortext-A8)
Reason device, and combine 4 passage MIPI bridging boards, constitute a kind of high-resolution display module test and display systems, it is right to can achieve
Small size MIPI interface HD720 and the test of higher resolution FHD liquid crystal display module, and small volume, easy to carry, low cost
Honest and clean.
Specifically, as shown in figure 1, MIPI bridging board 41 includes four parts, it is respectively：Signal input/output board 411, bridge
Connect chip 412, clock board 413 and power panel 414.Wherein, bridging chip 412 respectively with signal input/output board 411, when
Clock plate 413 and power panel 414 electrically connect, and bridging chip 412 is used for for rgb signal being converted to MIPI signal, signal input/defeated
It is provided with rgb signal receiving port and MIPI signal sending end mouth, rgb signal receiving port is used for and controls list in ejecting plate 411
The rgb signal output interface of unit 10 connects, and after receiving rgb signal, rgb signal is passed to by signal input/output board 411
Bridging chip 412 simultaneously receives the MIPI signal changed out by bridging chip 412, and MIPI signal sending end mouth is used for and conversion
Plate 42 connects, to transmit rgb signal.Wherein, bridging chip 412 is preferably SSD2828 chip, as the control of interface unit 40
Core, for being converted to the MIPI4 channel signal of high speed by the rgb signal of the low speed of 24；Power panel 414 is bridging chip
412 offer voltages, and provide for display module and be converted to satisfactory analog voltage VCC (2.8V), digital voltage
IOVCC（1.8V）Voltage and no-voltage reference potential（Be generally called " "）；Clock board 413 is used for making control unit and interface list
The clock of unit is synchronous.
Connecting plate 42 is used for providing MIPI signal and backlight for display module 50 that is to be tested or showing.Specifically, connect
It is provided with adapter 422 and backlight module 421, backlight module 421 includes driving chip and light source in plate 42（As LED）, drive
Dynamic chip provides constant-current driving electric current for LED, and LED provides the back of the body of uniform luminance for display module 50 that is to be tested or showing
Light.Adapter 422 is used for and MIPI bridging board 41（The MIPI signal sending end mouth of specifically signal input/output board 411）Even
Connect, MIPI signal is sent to display module 50 that is to be tested or showing, meanwhile, adapter 422 is also with backlight module 421 even
Connect.Wherein, when there being multiple backlight module 421, multiple backlight modules provide backlight jointly.Driving core in backlight module 421
Piece can select RT9285B chip, and constant current output 20mA is to drive the LED as backlight；Adapter 422 can be selected
AXE53124 chip.
As shown in figure 1, manipulation unit 30 may include keyboard, keyboard is used for realizing keypress function, provides man-machine information exchange
Interface, certainly, is also used for producing manipulation instruction, to test in display module 50 or to interrupt during showing to display module 50
The output of display signal（The i.e. output of interrupt interface unit 40）.
In addition, it can be seen from figure 1 that being also provided with USB interface in control unit 10（Such as Mini USB interface, realizes
The communications protocol of USB2.0）, USB interface is used for connecting external control deviceses, and external control deviceses include mouse etc., and it is right to can be used for
System carries out other control operations.It is also provided with RS232 serial ports in control unit 10, realize RS232 serial port protocol, be used for
By compiled program（Kernel for example with the compiled linux system of PC or the kernel of android system, and not
With the test program testing content）It is written in memory element 20（Certainly, information stored above can also write control unit from
In the storage chip of band）, in order to according to product test or show need change test or presentation program, expand this test with
The versatility of display systems；RS232 serial ports also can connect monitoring software, for example：There is the hyper terminal of control function, supervise in real time
The ruuning situation of control Cortext-A8, the timely exception finding in system operation, to take corresponding treatment measures, is kept away
Exempt from because test is bad with the bad test causing of display systems itself or shows fault.It is also provided with end in control unit 10
End interface 11, for being connected with terminal units such as computers, thus carry out further control operation to system（Such as system
Upgrading, fault restoration）Deng.
Wherein, memory element 20 is preferably Large Copacity SD card, for storing outside jumbo colour picture, meets each
The display module of resolution MIPI interface shows demand, meets the popularization for display module of enterprise planning and market.
Testing, using this display module, the detailed process with display systems, display module tested or shown is：
S1, the test of described display module is connected with display module 50 with display systems, and display module 50 is surveyed
Examination or displaying.
In this step, will display module be attached with the connecting plate 42 of the test of this display module and display systems.
Afterwards, start the power supply of whole system, provide the power supply of direct current 5V, as the Linux system in the arm processor of control unit 10
System can call in boot loader file, automatic linux system；Meanwhile, MIPI bridging board 42 is also initialized goes forward side by side
Enter normal operation, rgb signal is converted to MIPI signal.After linux system starts, setup code can be passed through MIPI bridge
Fishplate bar 41 downloads to the driving chip of the display module being connected with connecting plate 42（DRIVER IC）Interior depositor, provides MIPI
Signal；Meanwhile, connecting plate 42 also provides corresponding backlight, and that is, MIPI bridging board 41 and connecting plate 42 provide for display module simultaneously
MIPI signal and backlight, MIPI signal provides display signal for display module, and backlight is used for lighting display module.
S2, by manipulate unit 30 send manipulation instruction to control unit 10, control unit 10 is in the state remaining on
Under, interrupt the output of display signal according to manipulation instruction control interface unit 40.
In this step, by keyboard（Manipulation unit 30）Button sends manipulation instruction to control unit 10, thus interrupting
The MIPI signal of interface unit 40（Display signal）Output.Wherein, the method interrupting MIPI signal output is various, for example may be used
To be that control unit 10 no longer sends rgb signal to interface unit 40 in the case of keeping linux system to run, therefore by RGB
The MIPI signal that signal is converted to naturally also just stops output；Or or control unit 10 is keeping linux system
In the case of operation, bridging chip 412 in control interface unit 40 so as to out of service, no longer carries out to rgb signal turning
Change, thus interrupting MIPI signal output.Certainly, in MIPI signal interruption, connecting plate 42 still continuable offer backlight, because
The presence of backlight will not produce impact to the replacing of display module 50.
Step S3, by display module 50 from display module test with display systems unload, by another display module 50 company
It is connected on display module test and display systems.
In this step, tested or shown that the connecting plate 42 of display module 50 and this system finishing separates, changed
The display module 50 of the new to be tested or displaying of next block, and be allowed to be connected with the connecting plate 42 of this system.
Step S4, by manipulate unit 30 send manipulation instruction to control unit 10, control unit 10 is according to manipulation instruction
Control interface unit 40 recovers the output of display signal.
In this step, by keyboard（Manipulation unit 30）Button sends manipulation instruction to control unit 10 again, now
The linux system of control unit 10 is still within normal operating condition, therefore can directly recover the output of rgb signal, or control bridge
Connect chip 412 to restart rgb signal is changed, thus recovering the output of the MIPI signal for driving display module,
Continue test or show new display module 50, complete the replacement operation of display module 50.
It is understood that the embodiment of above principle being intended to be merely illustrative of the present and the exemplary enforcement adopting
Mode, but the invention is not limited in this.For those skilled in the art, in the essence without departing from the present invention
In the case of god and essence, various modifications and improvement can be made, these modifications and improvement are also considered as protection scope of the present invention.
Claims (10)
1. a kind of display module test and display systems are it is characterised in that include：
Memory element, it is used for storage test and the data message shown；
The control unit electrically connecting with described memory element, it is used for the image in the data message of described memory element storage
Information is converted to graphics control signals, and described image control signal includes RGB or RGBW signal；
The interface unit electrically connecting with described control unit, its be used for connect to be tested with show display module, be additionally operable to by
The graphics control signals that described control unit provides are converted to display signal, and provide display signal to drive for described display module
Dynamic display module shows；
The manipulation unit electrically connecting with described control unit, it is used for the manipulation instruction of receive user and sends manipulation instruction to
Described control unit；
And,
Described control unit is additionally operable to receive described manipulation signal, and according to described manipulation signal control in the state of remaining on
Make the output that described interface unit interrupts or recovers display signal.
2. display module according to claim 1 test with display systems it is characterised in that
Described interface unit is additionally operable to provide display required backlight for display module.
3. display module according to claim 2 is tested with display systems it is characterised in that described interface unit includes：
The MIPI bridging board electrically connecting with control unit, its be used for reception control unit provide graphics control signals and will be described
Graphics control signals are converted to MIPI signal；
The connecting plate electrically connecting with MIPI bridging board, it is used for connecting described display module, and described connecting plate is additionally operable to MIPI
The MIPI signal that bridging board provides is supplied to display module, and provides display required backlight for described display module.
4. display module according to claim 3 test with display systems it is characterised in that described MIPI bridging board bag
Include：
Bridging chip, it is used for for graphics control signals being converted to MIPI signal；
Signal input/output board, it is electrically connected with bridging chip and control unit, for the image control providing control unit
Signal is transmitted to described bridging chip, and by the MIPI signal output of described bridging chip offer to connecting plate.
5. display module according to claim 4 is tested with display systems it is characterised in that described MIPI bridging board also wraps
Include：
The clock board electrically connecting with described bridging chip, it is used for making described control unit synchronous with the clock of interface unit；
The power panel electrically connecting with described bridging chip, it is used for powering for described bridging chip.
6. display module according to claim 3 is tested with display systems it is characterised in that described connecting plate includes：
The adapter electrically connecting with described MIPI bridging board, the MIPI signal that it is used for providing described MIPI bridging board is transmitted to
Described display module；
The backlight module electrically connecting with described adapter, for providing display required backlight for described display module；Backlight mould
Block includes the driving chip electrically connecting with described adapter and at least one light source electrically connecting with described driving chip, described drive
Dynamic chip is used for controlling described light source luminescent.
7. the display module test according to any one in claim 3 to 6 and display systems, described MIPI bridging board
Bandwidth is at least 1Gbps, including at least 4 groups of passages.
8. display module as claimed in any of claims 1 to 6 test with display systems it is characterised in that
Described memory element is electrically connected with described control unit by interface；
Or
Described memory element and described control unit become one.
9. display module as claimed in any of claims 1 to 6 test with display systems it is characterised in that
Described control unit is the processor of more than dominant frequency 1GHz.
10. in a kind of claim 1 to 9, the display module described in any one tests the using method with display systems, and it is special
Levy and be, including：
S1, the test of described display module is connected with display module with display systems, and display module is tested or shows；
S2, by manipulate unit send manipulation instruction to control unit, described control unit in the state of remaining on, according to
Described manipulation instruction controls described interface unit to interrupt the output of display signal；
S3, described display module is unloaded from display module test with display systems, another display module is connected to described in
In display module test and display systems；
S4, by manipulate unit send manipulation instruction to control unit, described control unit according to described manipulation instruction control institute
State the output that interface unit recovers display signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126366.3A CN103941436B (en) | 2014-03-31 | 2014-03-31 | Display module testing and displaying system and application method thereof |
| PCT/CN2014/091389 WO2015149526A1 (en) | 2014-03-31 | 2014-11-18 | Display module testing and displaying system and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126366.3A CN103941436B (en) | 2014-03-31 | 2014-03-31 | Display module testing and displaying system and application method thereof |
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| Publication Number | Publication Date |
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| CN103941436A CN103941436A (en) | 2014-07-23 |
| CN103941436B true CN103941436B (en) | 2017-02-08 |
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| WO2015149526A1 (en) | 2015-10-08 |
| CN103941436A (en) | 2014-07-23 |
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