CN205121091U - Liquid crystal display module testing device - Google Patents
Liquid crystal display module testing device Download PDFInfo
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- CN205121091U CN205121091U CN201520858612.4U CN201520858612U CN205121091U CN 205121091 U CN205121091 U CN 205121091U CN 201520858612 U CN201520858612 U CN 201520858612U CN 205121091 U CN205121091 U CN 205121091U
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 79
- 238000012360 testing method Methods 0.000 title claims abstract description 55
- 238000009434 installation Methods 0.000 claims description 32
- 230000011664 signaling Effects 0.000 claims description 30
- 238000012544 monitoring process Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000005439 thermosphere Substances 0.000 description 1
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Abstract
The utility model provides a liquid crystal display module testing device, this liquid crystal display module testing device is including laying signal modules and power module's first circuit board, interface keysets, await measuring liquid crystal display module and connection the interface keysets with liquid crystal display module's first connector awaits measuring, signal modules produces test signal and passes through the interface keysets with first connector will test signal transmits for under high temperature environment liquid crystal display module awaits measuring, power module passes through the interface keysets with first connector does the liquid crystal display module that awaits measuring provides the power. This liquid crystal display module testing device can adopt the signal modules IC chip of multiple work under normal atmospheric temperature, and the choice of signal modules IC chip is wider, tests more steadily.
Description
Technical field
The utility model relates to technical field of measurement and test, particularly a kind of liquid crystal display module proving installation.
Background technology
Along with developing rapidly of vehicle-mounted, industrial control field industry, to liquid crystal display module (LiquidCrystalModel, LCM) application also constantly increases, and in order to ensure the high stability of liquid crystal display module, requires also more and more higher to the high temperature test of liquid crystal display module.Liquid crystal display module manufacturer, when carrying out Reliability Assurance test (ReliabilityAssuranceTest is called for short RA test), requires also more and more higher to the heat resistance of front end signal module.
But produce the restriction of IC chip by high-temperature severe environment of signaling module, a lot of IC chip cannot meet current this harsh demand.Therefore cause IC chip that is normal and reliably working under being used in this kind of environment little.Even if find the IC chip met under this poor working conditions, this type of IC chip price is also very expensive, and cost is higher, is unfavorable for that large-scale promotion uses.
Please refer to Fig. 1, Fig. 1 is the structural representation of prior art liquid crystal display module proving installation.As shown in Figure 1, this liquid crystal display module proving installation 10 comprises first circuit board 11, liquid crystal display module 12 and the first connector 13 for connecting this first circuit board 11 and this liquid crystal display module 12, this first circuit board 11 comprises signaling module 111, power module 112 and the second connector 113, test signal and power delivery are given this liquid crystal display module 12 by this second connector 113 on this first circuit board 11 by this first connector 13, thus test the reliability of this liquid crystal display module.Wherein: this signaling module 111 is IC chip, when carrying out Reliability Assurance test, this liquid crystal display module proving installation 10 needs all to drop in high temperature furnace to test, therefore, the high temperature resistant requirement of this liquid crystal display module proving installation 10 to this signaling module 111IC chip is higher, and most of IC chip cannot meet test request; On the other hand, even if use the IC chip meeting test environment, in high temperature test, IC chip very easily damages, and affects the test result of liquid crystal display module to be measured on the contrary; In addition, when after test crash, test macro problem cannot be confirmed to be, or the problem of liquid crystal display module to be measured, again need test, cause trouble.
Utility model content
The purpose of this utility model comprises provides a kind of liquid crystal display module proving installation, this proving installation can solve liquid crystal display module when hot environment carries out reliability testing, causes most of IC chip cannot meet the problem of high temperature test demand because signaling module is in hot environment.
Particularly, the utility model provides a kind of liquid crystal display module proving installation, comprise and be laid with signaling module and the first circuit board of power module, liquid crystal display module to be measured and the first connector being connected described first circuit board and described liquid crystal display module to be measured, described signaling module is produced test signal and also by described first connector, described test signal is transferred to the liquid crystal display module described to be measured be under hot environment, described power module by described first connector for described liquid crystal display module to be measured provides power supply;
Described proving installation also comprises interface conversion plate, coaxial cable and is laid in the first coaxial interface on described first circuit board, described interface conversion plate is laid with the second coaxial interface and the second connector, one end of described coaxial cable connects described first coaxial interface, the other end of described coaxial cable connects described second coaxial interface, described first coaxial interface is connected with described signaling module and described power module, described first connector one end is connected with described interface plate, and the other end of described first connector is connected with described liquid crystal display module to be measured.
Preferably, described proving installation also comprises monitoring module, and to monitor the curent change that described signaling module exports, described monitoring module is connected with described power module.
Preferably, described proving installation also comprises warning device, and abnormal with the sampling warning described monitoring module, described warning device is connected with monitoring module.
Preferably, described warning device is pilot lamp or hummer.
Preferably, described second coaxial interface and described second connector adopt high temperature resistant material.
Preferably, gauze screen is provided with outside described coaxial cable.
Preferably, described first connector is cable or flexible print wiring board.
Preferably, the signal that described signaling module sends is MIPI signal or LVDS signal.
Preferably, the voltage of described power module generation is adjustable.
Owing to producing the signaling module of test signal in the liquid crystal display module proving installation that the utility model embodiment provides and to provide the first circuit board of the power module of power supply to be in high temperature test stove outside for liquid crystal display module to be measured, interface plate and liquid crystal display module to be measured are in high temperature test furnace interior, liquid crystal display mode group to be measured is carried out Reliability Assurance test time, first circuit board by coaxial cable to liquid crystal display module transmitted test signal to be measured and power supply.This liquid crystal display module proving installation can adopt the multiple signaling module IC chip worked under normal temperature, and the range of choice of signaling module IC chip is wider, tests more stable.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of instructions, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art liquid crystal display module proving installation.
The structural representation of a kind of liquid crystal display module proving installation that Fig. 2 provides for the utility model embodiment.
Embodiment
For further setting forth the utility model for the technological means reaching predetermined object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to the embodiment of a kind of liquid crystal display module proving installation that the utility model proposes, method, step, structure, feature and effect, be described in detail as follows.
Relevant aforementioned and other technology contents, Characteristic of the present utility model, can clearly present in following cooperation describes in detail with reference to graphic preferred embodiment.By the explanation of embodiment, when can to the utility model for the technological means reaching predetermined object and take and effect be able to more deeply and concrete understanding, but institute's accompanying drawings is only to provide with reference to the use with explanation, is not used for being limited the utility model.
Please refer to Fig. 2, the structural representation of a kind of liquid crystal display module proving installation that Fig. 2 provides for the utility model embodiment.As shown in Figure 2, this liquid crystal display module proving installation 20 comprises and is laid with signaling module 301 and the first circuit board 30 of power module 302, liquid crystal display module 42 to be measured and the interface plate 40 being connected this first circuit board 30 and this liquid crystal display module 42 to be measured, this interface plate 40 one end is connected with this first circuit board 30 by coaxial cable 50, and this interface plate 40 other end is connected by the first connector 41 and this liquid crystal display module 42 to be measured.This first circuit board 30 is also laid with the first coaxial interface 303, this first coaxial interface 303 is connected with this signaling module 301 and this power module 302; This interface plate 40 is laid with the second coaxial interface 401 and the second connector 402, one end of this coaxial cable 50 connects this first coaxial interface 303, the other end of this coaxial cable 50 connects this second coaxial interface 401, this the first connector 41 one end is connected with this second connector 402, and the other end of this first connector 41 is connected with this liquid crystal display module 42 to be measured.In the present embodiment, this first connector 41 is preferably cable or flexible print wiring board.In the present embodiment, this first coaxial interface 303, due to when carrying out Reliability Assurance test to liquid crystal display mode group to be measured, is arranged on the outside of high temperature test stove, does not need to bear high temperature, and therefore, this first coaxial interface 303 can select conventional material interface.It should be noted that: this first coaxial interface 303 wants and the pin of this second coaxial interface 401 mates mutually.This first connector 41 and this second coaxial interface 401 are made by high temperature resistant material, and therefore this interface plate 40 can work in hot environment.
This signaling module 301 is produced test signal and by this first connector 41, this test signal is transferred to this liquid crystal display module 42 to be measured be under hot environment, this power module 302 by this first connector 41 for this liquid crystal display module 42 to be measured provides power supply.Wherein, this first connector 41 can design according to the input interface of different liquid crystal display module display screen.In the present embodiment, this signaling module 301 adopts the integrated IC chip that can produce the picture signal meeting VASA standard agreement, such as, this IC chip can produce MIPI signal or LVDS signal so that test man tests the picture signal reliability that liquid crystal display module manifests under this signaling protocol specification.Wherein, this signaling module 301 can adopt the IC chip be operated under arbitrary temp.This power module 302 provides power supply for liquid crystal display module 42, and wherein this power supply is adjustable.Therefore, this power module 302 can meet the voltage request of test needed for different liquid crystal display module 42.
Outside every root line of this coaxial cable 50, gauze screen is set, this gauze screen can prevent other signal disturbing and shielding thermosphere, and this coaxial cable 50 is applicable to long range propagation, therefore test man can according to the feature of test event, determine this first circuit board 30 and and be in the measuring distance of this interface plate 40 in high temperature test stove, to make test result accurately and reliable as far as possible.
During test, this first circuit board 30 is positioned over the outside of high temperature test stove, this interface plate 40 and this liquid crystal display module 42 to be measured are positioned over the inside of high temperature test stove, this signaling module 301 in this first circuit board 30 produces picture signal, this picture signal is transferred to this liquid crystal display module 42 to be measured by this coaxial cable 50, this power module 302 produces voltage drive, and this voltage drive is transferred to this liquid crystal display module 42 to be measured by this coaxial cable 50.Because this signaling module 301 is in test furnace outside, this signaling module 301 can adopt the multiple IC chip worked under normal temperature, therefore improves the range of choice of this signaling module 301IC chip; This signaling module 301 can produce reliable and stable test signal, improves reliability and the accuracy of test liquid crystal display module; Meanwhile, owing to adopting this coaxial cable 50 as signal transmission medium, this coaxial cable 50 has good thermoshield and assorted signal shielding effect, and therefore this signaling module 301 can provide reliable and stable test signal, thus improves reliability and the accuracy of test liquid crystal display module.
This liquid crystal display module proving installation 20 also comprises the monitoring module 304 and warning device 305 that connect successively, and this monitoring module 304 is connected with this power module 302.When there is exception in this liquid crystal display module 42 to be measured in high temperature test process, there are unusual fluctuations in the working current of this liquid crystal display module 42 to be measured, namely this power module 302 flows to the current anomaly fluctuation of this liquid crystal display module 42 to be measured, this monitoring module 304 analyzes the exception of this liquid crystal display module 42 to be measured by the output current of this power module 302 of collection, and then, this monitoring module 304 produces trigger pulse immediately, trigger this warning device 305 and produce alarm, thus make tester know the test result of this liquid crystal display module 42 to be measured.In the present embodiment, this warning device 305 is preferably pilot lamp or hummer.
The above, it is only the preferred embodiment of utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solutions of the utility model content, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. a liquid crystal display module proving installation, comprise and be laid with signaling module and the first circuit board of power module, liquid crystal display module to be measured and the first connector being connected described first circuit board and described liquid crystal display module to be measured, described signaling module is produced test signal and also by described first connector, described test signal is transferred to the liquid crystal display module described to be measured be under hot environment, described power module by described first connector for described liquid crystal display module to be measured provides power supply;
It is characterized in that: described proving installation also comprises interface conversion plate, coaxial cable and the first coaxial interface be laid on described first circuit board, described interface conversion plate is laid with the second coaxial interface, and second connector, one end of described coaxial cable connects described first coaxial interface, the other end of described coaxial cable connects described second coaxial interface, described first coaxial interface is connected with described signaling module and described power module, described first connector one end is connected with described interface plate, the other end of described first connector is connected with described liquid crystal display module to be measured.
2. liquid crystal display module proving installation according to claim 1, is characterized in that: described proving installation also comprises monitoring module, and to monitor the curent change that described signaling module exports, described monitoring module is connected with described power module.
3. liquid crystal display module proving installation according to claim 2, is characterized in that: described proving installation also comprises warning device, and abnormal with the sampling warning described monitoring module, described warning device is connected with monitoring module.
4. liquid crystal display module proving installation according to claim 3, is characterized in that: described warning device is pilot lamp or hummer.
5. liquid crystal display module proving installation according to claim 1, is characterized in that: described second coaxial interface and described second connector adopt high temperature resistant material.
6. liquid crystal display module proving installation according to claim 1, is characterized in that: be provided with gauze screen outside described coaxial cable.
7. liquid crystal display module proving installation according to claim 6, is characterized in that: described first connector is cable or flexible print wiring board.
8. liquid crystal display module proving installation according to claim 1, is characterized in that: the signal that described signaling module sends is MIPI signal or LVDS signal.
9. liquid crystal display module proving installation according to claim 1, is characterized in that: the voltage that described power module produces is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520858612.4U CN205121091U (en) | 2015-10-30 | 2015-10-30 | Liquid crystal display module testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520858612.4U CN205121091U (en) | 2015-10-30 | 2015-10-30 | Liquid crystal display module testing device |
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| CN205121091U true CN205121091U (en) | 2016-03-30 |
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| CN201520858612.4U Active CN205121091U (en) | 2015-10-30 | 2015-10-30 | Liquid crystal display module testing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407356A (en) * | 2017-08-17 | 2019-03-01 | 上海帆声图像科技有限公司 | Display screen powers on voltage-stabilizing power supply system and display screen powers on pressure stabilizing method of supplying power to |
| 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 |
-
2015
- 2015-10-30 CN CN201520858612.4U patent/CN205121091U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407356A (en) * | 2017-08-17 | 2019-03-01 | 上海帆声图像科技有限公司 | Display screen powers on voltage-stabilizing power supply system and display screen powers on pressure stabilizing method of supplying power to |
| CN109407356B (en) * | 2017-08-17 | 2021-12-03 | 上海帆声图像科技有限公司 | Power-on voltage-stabilizing power supply system and method for display screen |
| 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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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |