CN103941436A - Display module testing and displaying system and application method thereof - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000011022 operating instruction Methods 0.000 abstract 2
- 230000004304 visual acuity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 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
- 239000012528 membrane Substances 0.000 description 1
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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
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 technique field, be specifically related to the test of a kind of demonstration module and display systems and using method thereof.
Background technology
In the production run of display panel, generally can prepare rear but not yet connect corresponding driving circuit first to show the test of module performance before forming display panel at demonstration module (comprising array base palte, color membrane substrates, liquid crystal layer etc.); In addition, in order to occupy the favourable market share, show that module also often appears at various exhibition halls, this is just required to be and shows that module provides a kind of and can provide a large amount of picture for test or the system of showing, also requires this system convenient operation, easy to carry simultaneously.
Existing demonstration module group test system can be and shows that module provides display, thereby drive, shows that module shows.
But, in the time will changing tested demonstration module, must first close demonstration module group test system, just new demonstration module can be pulled down and loaded onto to demonstration module from showing module group test system afterwards, finally reopen again demonstration module group test system, this is because when showing that module continues output display signal, and handling show that module can cause damage to equipment; And above problem has caused changing the troublesome poeration that shows module, length consuming time.
Summary of the invention
Technical matters to be solved by this invention is the problem that need to restart while changing demonstration module for existing demonstration module test with display systems, the test of a kind of demonstration module and display systems and using method thereof are provided, it is changed while showing module does not need to restart, simple to operate, consuming time few.
The technical scheme that solution the technology of the present invention problem adopts is a kind of demonstration module test and display systems, and it comprises:
Storage unit, it is for storing test and the data message of showing use;
With the control module that described storage unit is electrically connected to, it is for being converted to image control signal by the image information of the data message of described cell stores;
The interface unit being electrically connected to described control module, it is for connecting demonstration module to be tested or that show, interface unit is also converted to display for the image control signal that described control module is provided, and to drive, shows module displays for described demonstration module provides display;
What be electrically connected to described control module controls unit, and it is for receiving controlling instruction and will control instruction and sending described control module to of user;
And,
Described control module is also controlled signal described in receiving, and under the state that keeps operation according to described in control the output that interface unit interrupts or recover display described in signal controlling.
Preferably, described interface unit be also used to show module provide show required backlight.
Preferably, described interface unit comprises: the MIPI bridging board being electrically connected to control module, and the image control signal that it provides for reception control unit is also converted to MIPI signal by described image control signal; With the web joint that MIPI bridging board is electrically connected to, it is for connecting described demonstration module, and described web joint also offers demonstration module for the MIPI signal that MIPI bridging board is provided, and for described demonstration module provide show required backlight.
Preferably, described MIPI bridging board comprises: bridging chip, and it is for being converted to MIPI signal by image control signal; Signal input/output board, it is electrically connected to bridging chip and control module, for the image control signal that control module is provided, is transmitted to described bridging chip, and the MIPI signal that described bridging chip is provided outputs to web joint.
Preferably, described MIPI bridging board also comprises: with the clock board that described bridging chip is electrically connected to, it is for making the clock synchronous of described control module and interface unit; With the power panel that described bridging chip is electrically connected to, it is used to described bridging chip power supply.
Preferably, described web joint comprises: with the connector that described MIPI bridging board is electrically connected to, it is transmitted to described demonstration module for the MIPI signal that described MIPI bridging board is provided; With the backlight module that described connector is electrically connected to, be used to described demonstration module to provide to show required backlight; Backlight module comprises the driving chip being electrically connected to described connector and at least one light source being electrically connected to described driving chip, and described driving chip is used for controlling described light source luminescent.
Preferably, the bandwidth of described MIPI bridging board is at least 1Gbps, comprises at least 4 group passages.
Preferably, described storage unit is electrically connected to described control module by interface; Or described storage unit and described control module become one.
Preferably, described control module is processor more than dominant frequency 1GHz.
The technical scheme that solution the technology of the present invention problem adopts is the using method of a kind of above-mentioned demonstration module test and display systems, and it comprises:
S1, by the test of described demonstration module and display systems with show that module is connected, and demonstration module is tested or is shown;
S2, by controlling unit, to control module, send and control instruction, described control module is keeping under the state of operation, according to described, control instruction and controls the output that described interface unit interrupts display;
S3, described demonstration module is unloaded with display systems from showing module test, another is shown to module is connected on described demonstration module test and display systems;
S4, by controlling unit, to control module, send and control instruction, described control module according to described in control instruction and control the output that described interface unit recovers display.
In demonstration module test of the present invention and display systems, can to control module, send and control instruction by controlling unit, thereby make interface unit interrupt the output (control module still keeps operation) of display, like this, can in the situation that not restarting, directly change and show module, simplify the operation, save time.
Accompanying drawing explanation
Fig. 1 is the structured flowchart that shows module test and display systems in the embodiment of the present invention 1;
In figure: 10-control module; 11-terminal interface; 12-RS232 serial ports; 13-USB interface; 14-ARM A8 processor; 20-storage unit; 30-controls unit; 40-interface unit; 41-MIPI bridging board; 411-signal input/output board; 412-bridging chip; 413-clock board; 414-power panel; 42-web joint; 421-backlight module; 422-connector; To be tested or the demonstration module shown of 50-.
Embodiment
For making those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is shown to module test is described in further detail with display systems.
The test of demonstration module and a display systems, it comprises:
Storage unit, it is for storing test and the data message of showing use;
With the control module that described storage unit is electrically connected to, it is for being converted to image control signal by the image information of the data message of described cell stores;
The interface unit being electrically connected to described control module, it is for connecting demonstration module to be tested or that show, interface unit is also converted to display for the image control signal that described control module is provided, and to drive, shows module displays for described demonstration module provides display;
What be electrically connected to described control module controls unit, and it is for receiving controlling instruction and will control instruction and sending described control module to of user;
And,
Described control module is also controlled signal described in receiving, and under the state that keeps operation according to described in control interface unit described in signal controlling and interrupt the output of display.
Concrete, as shown in Figure 1, the test of the demonstration module of the present embodiment comprises control module 10, storage unit 20, controls unit 30 and interface unit 40 with display systems.Control module 10 and storage unit 20, control unit 30 and interface unit 40 is electrically connected to respectively.Storage unit 20 is for storing test and the data message (comprising test procedure and image information etc.) of showing use; User controls unit 30 for man-machine interface is provided, so that can send and control instruction to control module; Control module 10 is converted to image control signal (the present embodiment be take rgb signal as example, and it also can be the other forms of signals such as RGBW certainly) for the image information that storage unit 20 is stored, and rgb signal is sent to interface unit 40; Meanwhile, control module 10 receive from control unit 30 control signal time, also can be under the state that keeps operation the output of control interface unit 40 look-at-mes.Interface unit 40 is for connecting demonstration module 50 to be tested or that show and above-mentioned rgb signal (image control signal) being converted to the display suitable with demonstration module 50 to be tested or that show (as MIPI signal, in the present embodiment as example), use afterwards MIPI(Mobile Industry Processor Interface, mobile industry processor interface) signal controlling shows that module shows.Wherein, demonstration module 50 to be tested or that show can show module for the high resolving power for testing, show and promoting, for example resolution is that the small size of HD720 (720 * 1280) and FHD (1200 * 1920) shows module, is particularly useful for the liquid crystal display module of mobile phone etc.
In the test of demonstration module and display systems of the present embodiment, can to control module 10, send and control instruction by controlling unit 30, thereby make interface unit 40 interrupt the output (but control module 10 still keeps operation) of MIPI signal, like this, can in the situation that not restarting, directly change and show module 50, simplify the operation, save time.
In the present embodiment, in order to obtain processing speed and fluent image measurement or bandwagon effect faster, control module is preferably processor more than dominant frequency 1GHz, reduced instruction set computer microprocessor for example, more preferably can be ARM A8 processor (is ARM A8 platform chip, Cortext-A8 core board for example), embedded linux system or Android system (preferably linux system), the dominant frequency of Cortext-A8 is 1GHz.Compare with demonstration module group test system of the prior art, adopt the processor of ARM framework, because arm processor has own exploitation and debugging system, make to show module test and display systems with better function, develop simplyr, cost is also lower.
Preferably, interface unit 40 can also for show module provide show required backlight.
Wherein, interface unit 40 comprises MIPI bridging board 41 and the web joint 42 of electric connection.In control module, 10 are provided with rgb signal output interface (not shown in figure 1), and MIPI bridging board 41 is electrically connected to rgb signal output interface, for rgb signal being converted to MIPI signal and exporting to web joint 42; 42 of web joints are for being connected with demonstration module 50 to be tested or that show, and MIPI signal is exported to and shown module 50, also, rgb signal output interface is for showing for the high resolving power of testing, showing and promoting the RGB standard interface that module is connected with outside with web joint 42 by MIPI bridging board 41.Meanwhile, web joint 42 is also used to and shows that module 50 provides backlight.
Preferably, MIPI bridging board comprises at least 4 group passages, the maximum bandwidth of each passage is at least, and can to reach 1Gbps(be that the mxm. of the data rate of every paths is at least 1Gbps), support the smooth operation of 3D figure, the resolution of HD720 and FHD be can support, and a large amount of pictures and 1080P video playback supported.In the present embodiment, the signal of rgb signal output interface output comprises the color signal of the various modes such as black, white, red, green, blue, GTG, colour.The public one group of clock line of 4 data channel in MIPI bridging board 41, that is to say, as long as 4 passages are also 10 lines.With the resolution of HD1080P, needed bandwidth is: 1920 * 1080 * 60 frames * 24bit=3Gbps, 4 passages of MIPI bridging board 41 can satisfy the demands.The test of demonstration module and display systems in the present embodiment, the low cost of employing based on ARM (Cortext-A8) exploitation, the processor of high configuration, and in conjunction with 4 passage MIPI bridging boards, form a kind of high resolving power and shown module test and display systems, can realize small size MIPI interface HD720 and the more test of high resolving power FHD liquid crystal display module, and volume is little, easy to carry, with low cost.
Concrete, as shown in Figure 1, MIPI bridging board 41 comprises four parts, respectively: signal input/output board 411, bridging chip 412, clock board 413 and power panel 414.Wherein, bridging chip 412 respectively with signal input/output board 411, clock board 413 and power panel 414 are electrically connected to, bridging chip 412 is for being converted to rgb signal MIPI signal, in signal input/output board 411, be provided with rgb signal receiving port and MIPI signal sending end mouth, rgb signal receiving port is for being connected with the rgb signal output interface of control module 10, after receiving rgb signal, signal input/output board 411 passes to bridging chip 412 by rgb signal, and receive the MIPI signal changed out by bridging chip 412, and MIPI signal sending end mouth is for being connected with change-over panel 42, to transmit rgb signal.Wherein, bridging chip 412 is preferably SSD2828 chip, as the control core of interface unit 40, for the rgb signal of the low speed of 24 being converted to MIPI4 channel signal at a high speed; Power panel 414 provides voltage for bridging chip 412, and for showing that module provides and be converted to satisfactory analog voltage VCC (2.8V), digital voltage IOVCC(1.8V) voltage and no-voltage reference potential (i.e. common name " "); Clock board 413 is for making the clock synchronous of control module and interface unit.
Web joint 42 is used to demonstration module 50 to be tested or that show that MIPI signal and backlight is provided.Concrete, in web joint 42, be provided with connector 422 and backlight module 421, backlight module 421 comprises and drives chip and light source (as LED lamp), drives chip to provide constant current drive current for LED lamp, and LED lamp provides the backlight of uniform luminance for demonstration module 50 to be tested or that show.Connector 422 for the MIPI bridging board 41(MIPI signal sending end mouth of signal input/output board 411 specifically) be connected, MIPI signal is sent to demonstration module 50 to be tested or that show, meanwhile, connector 422 is also connected with backlight module 421.Wherein, when having a plurality of backlight module 421, it is backlight that a plurality of backlight modules provide jointly.Driving chip in backlight module 421 can be selected RT9285B chip, and constant current output 20mA is usingd driving as LED lamp backlight; Connector 422 can be selected AXE53124 chip.
As shown in Figure 1, control unit 30 and can comprise keyboard, keyboard is used for realizing keypress function, man-machine information exchange interface is provided, certainly, also for generation of controlling instruction, to interrupt showing the output (being the output of interrupt interface unit 40) of the display of module 50 in showing module 50 tests or displaying process.
In addition, as can be seen from Fig. 1, in control module 10, also can be provided with USB interface (Mini USB interface for example, realize the communications protocol of USB2.0), USB interface is used for connecting external control devices, and external control devices comprises mouse etc., can be used for system to carry out other control operation.In control module 10, also can be provided with RS232 serial ports, realize RS232 serial port protocol, for example, for compiled program (is adopted to the kernel of the compiled linux system of PC or the kernel of Android system, and the test procedure of different content measurements) be written in storage unit 20 (certainly, in the storage chip that the information of more than storing also can write control unit carries), so that need to change test or presentation program according to product test or displaying, expanded the versatility of this test and display systems; RS232 serial ports also can connect monitoring software, for example: the hyper terminal with monitoring function, monitor in real time the ruuning situation of Cortext-A8, timely abnormal to take corresponding treatment measures in discovery system operational process, avoids the bad or displaying fault of the bad test causing because of test and display systems itself.In control module 10, also can be provided with terminal interface 11, for being connected with terminal devices such as computing machines, thereby system be carried out to further control operation (such as system upgrade, fault restoration) etc.
Wherein, storage unit 20 is preferably large capacity SD card, is used for storing outside jumbo colour picture, and the demonstration module that meets each resolution MIPI interface is shown demand, meets enterprise planning and market for the popularization that shows module.
Adopt the test of this demonstration module and display systems to the detailed process that shows module and test or show to be:
S1, by the test of described demonstration module and display systems with show that module 50 is connected, and demonstration module 50 is tested or is shown.
In this step, be about to show that module is connected with the web joint 42 of display systems with this demonstration module test.Afterwards, start the power supply of whole system, the power supply of direct current 5V is provided, as the linux system in the arm processor of control module 10, can call in boot loader file, automatically start linux system; Meanwhile, MIPI bridging board 42 is also through initialization and enter normal operation, and rgb signal is converted to MIPI signal.After linux system starts, setup code can be downloaded to the interior register of driving chip (DRIVER IC) of the demonstration module being connected with web joint 42 by MIPI bridging board 41, MIPI signal is provided; Meanwhile, it is backlight accordingly that web joint 42 also provides, and MIPI bridging board 41 and web joint 42 are for show that module provides MIPI signal and backlight simultaneously, and MIPI signal is for showing that module provides display, backlight for lighting demonstration module.
S2, by controlling unit 30, to control module 10, send and control instruction, control module 10 is keeping under the state of operation, according to controlling instruction control interface unit 40, interrupts the output of displays.
In this step, by keyboard (controlling unit 30) button, to control module 10, send and control instruction, thus the output of the MIPI signal (display) of interrupt interface unit 40.Wherein, the method for interrupting the output of MIPI signal is various, for example, can be that control module 10 no longer sends rgb signal to interface unit 40 in the situation that keeping linux system operation, therefore the MIPI signal being converted to by rgb signal also just stops output naturally; Or, can be also control module 10 in the situation that keeping linux system operation, the bridging chip 412 in control interface unit 40, makes it out of service, no longer rgb signal is changed, thereby is interrupted the output of MIPI signal.Certainly, when MIPI signal interruption, web joint 42 is still continuable provides backlight, because existence backlight can be to not showing that the replacing of module 50 exerts an influence.
Step S3, demonstration module 50 is unloaded with display systems from showing module test, another is shown to module 50 is connected to and show on module test and display systems.
In this step, will test or show that complete demonstration module 50 is separated with the web joint 42 of this system, change the demonstration module 50 of the to be tested or displaying that next piece is new, and make it to be connected with the web joint 42 of this system.
Step S4, by controlling unit 30, to control module 10, send and control instruction, control module 10 is according to the output of controlling instruction control interface unit 40 and recovering displays.
In this step, by keyboard (controlling unit 30) button, again to control module 10, send and control instruction, now the linux system of control module 10 is still in normal operating condition, therefore can directly recover the output of rgb signal, or control bridging chip 412 and restart rgb signal to change, thereby recover, for driving the output of the MIPI signal that shows module, continue test or show new demonstration module 50, complete the replacing operation that shows module 50.
Be understandable that, above embodiment is only used to principle of the present invention is described and the illustrative embodiments that adopts, yet the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (10)
1. show module test and a display systems, it is characterized in that, comprising:
Storage unit, it is for storing test and the data message of showing use;
With the control module that described storage unit is electrically connected to, it is for being converted to image control signal by the image information of the data message of described cell stores;
The interface unit being electrically connected to described control module, it is for connecting demonstration module to be tested or that show, also for the image control signal that described control module is provided, be converted to display, and to drive, show module displays for described demonstration module provides display;
What be electrically connected to described control module controls unit, and it is for receiving controlling instruction and will control instruction and sending described control module to of user;
And,
Described control module is also controlled signal described in receiving, and under the state that keeps operation according to described in control the output that interface unit interrupts or recover display described in signal controlling.
2. demonstration module test according to claim 1 and display systems, is characterized in that,
Described interface unit be also used to show module provide show required backlight.
3. demonstration module test according to claim 2 and display systems, is characterized in that, described interface unit comprises:
The MIPI bridging board being electrically connected to control module, the image control signal that it provides for reception control unit is also converted to MIPI signal by described image control signal;
With the web joint that MIPI bridging board is electrically connected to, it is for connecting described demonstration module, and described web joint also offers demonstration module for the MIPI signal that MIPI bridging board is provided, and for described demonstration module provide show required backlight.
4. demonstration module test according to claim 3 and display systems, is characterized in that, described MIPI bridging board comprises:
Bridging chip, it is for being converted to MIPI signal by image control signal;
Signal input/output board, it is electrically connected to bridging chip and control module, for the image control signal that control module is provided, is transmitted to described bridging chip, and the MIPI signal that described bridging chip is provided outputs to web joint.
5. demonstration module test according to claim 4 and display systems, is characterized in that, described MIPI bridging board also comprises:
With the clock board that described bridging chip is electrically connected to, it is for making the clock synchronous of described control module and interface unit;
With the power panel that described bridging chip is electrically connected to, it is used to described bridging chip power supply.
6. demonstration module test according to claim 3 and display systems, is characterized in that, described web joint comprises:
With the connector that described MIPI bridging board is electrically connected to, it is transmitted to described demonstration module for the MIPI signal that described MIPI bridging board is provided;
With the backlight module that described connector is electrically connected to, be used to described demonstration module to provide to show required backlight; Backlight module comprises the driving chip being electrically connected to described connector and at least one light source being electrically connected to described driving chip, and described driving chip is used for controlling described light source luminescent.
7. according to the test of demonstration module and display systems described in any one in claim 3 to 6, the bandwidth of described MIPI bridging board is at least 1Gbps, comprises at least 4 group passages.
8. according to the test of demonstration module and display systems described in any one in claim 1 to 6, it is characterized in that,
Described storage unit is electrically connected to described control module by interface;
Or
Described storage unit and described control module become one.
9. according to the test of demonstration module and display systems described in any one in claim 1 to 6, it is characterized in that,
Described control module is processor more than dominant frequency 1GHz.
10. a using method for the test of the demonstration module described in any one and display systems in claim 1 to 9, is characterized in that, comprising:
S1, by the test of described demonstration module and display systems with show that module is connected, and demonstration module is tested or is shown;
S2, by controlling unit, to control module, send and control instruction, described control module is keeping under the state of operation, according to described, control instruction and controls the output that described interface unit interrupts display;
S3, described demonstration module is unloaded with display systems from showing module test, another is shown to module is connected on described demonstration module test and display systems;
S4, by controlling unit, to control module, send and control instruction, described control module according to described in control instruction and control the output that described interface unit recovers display.
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| 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 |
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| CN104793371B (en) * | 2015-05-06 | 2017-11-28 | 武汉精测电子技术股份有限公司 | Error condition detection means and method during a kind of MIPI modules point screen |
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| CN106771974A (en) * | 2016-12-29 | 2017-05-31 | 武汉华星光电技术有限公司 | Display module lighting test device and method |
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| WO2020087579A1 (en) * | 2018-10-30 | 2020-05-07 | 重庆先进光电显示技术研究院 | Detection apparatus for display panel and detection method therefor |
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| CN111625081A (en) * | 2019-02-28 | 2020-09-04 | 上海和辉光电有限公司 | Image data processing method and device |
| CN110262990A (en) * | 2019-07-03 | 2019-09-20 | 延锋伟世通汽车电子有限公司 | LVDS video source module and its application method |
| CN110988738A (en) * | 2019-12-13 | 2020-04-10 | 华显光电技术（惠州）有限公司 | Multi-interface open-short circuit test circuit and device |
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| Publication number | Publication date |
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| CN103941436B (en) | 2017-02-08 |
| WO2015149526A1 (en) | 2015-10-08 |
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