CN209070260U - A kind of batch progress liquid crystal module reliability detection system - Google Patents
A kind of batch progress liquid crystal module reliability detection system Download PDFInfo
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- CN209070260U CN209070260U CN201821809981.4U CN201821809981U CN209070260U CN 209070260 U CN209070260 U CN 209070260U CN 201821809981 U CN201821809981 U CN 201821809981U CN 209070260 U CN209070260 U CN 209070260U
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Abstract
The utility model proposes a kind of batches to carry out liquid crystal module reliability detection system, it is related to burn-in test field, including several grades of expansion board, it include internal shared power inlet, external power supply input port, power supply cascade port and at least one mould group line mouth in the expansion board, it shares power inlet positioned at the inside of the expansion board of the first order to connect with host, the inside of the expansion plate of the power supply cascade port and next stage of the expansion board shares power inlet connection；The external power supply input port is connect with external power supply；At least one described mould group connection jaws is connect with LCD module under test.When the utility model realizes burn-in test multiple and different liquid crystal modules are carried out with the test under the conditions of different voltages, electric current etc., improves the compatibility and practicability of burn-in test.
Description
Technical field
The utility model relates to burn-in test field, especially a kind of batch carries out liquid crystal module reliability detection system.
Background technique
Liquid crystal module is that the components such as liquid crystal display, backlight assembly, power circuit, signal processing circuit are assembled
Component is widely used in each electronic product.With the raising of production technology, the quality requirement of liquid crystal module also becomes
It obtains higher and higher.For this purpose, liquid crystal module, needs to carry out burn-in test to liquid crystal module in process of production comprising liquid crystal mould
Whether the color of group shows normal, and whether the parameters such as operating voltage, electric current are in tolerance interval etc..
Existing LCD module group aging test system, general using fixed interface quantity, occupied ground is unable to adjust greatly,
A kind of test board can only be directed to single paragraph mould group, and test object is single, be unable to satisfy and test multiple and different liquid crystal modules, real
It is poor with property.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of batch progress liquid crystal module reliability detection system.
The utility model specifically adopts the following technical scheme that realization:
A kind of batch carries out liquid crystal module reliability detection system, including several grades of expansion board, includes in the expansion board
Power supply and signal input, power supply and signal output, external power supply input port, backlight voltage selection module, the selection of LCD voltage
Module and the first signal isolation amplification module and second signal Isolation Amplifier Module,
The power supply and signal input positioned at expansion board described in the first order are connect with host, the expansion board it is described
The power supply and signal input of the expansion plate of power supply and signal output and next stage connect；
The external power supply input port is connect with external power supply；
The second signal Isolation Amplifier Module is connect with the power supply and signal output；
The backlight voltage selection module and LCD voltage selection module respectively with the power supply and signal input and described
The connection of external power supply input port, power supply or external power supply for selecting to provide using the host；
The backlight voltage selection module and LCD voltage selection module by the first signal isolation amplification module with to
Survey liquid crystal module connection.
Preferably, the host output display signal, control signal, system LCD power supply and system backlight electric power.
Preferably, the external power supply includes external backlight electric power and external LCD power supply, the external backlight electric power is used
In adjusting back facet current, the external LCD power supply is for adjusting LCD voltage.
Preferably, the first signal isolation amplification module is equipped at least one.
Preferably, at least one described first signal isolation amplification module passes through pinboard or winding displacement and the prepare liquid
Brilliant mould group connection.
Preferably, the pin number of one end of the pinboard or winding displacement and the first signal isolation amplification module
Interface quantity is consistent, the interface quantity one of the pin number of the other end of the pinboard or winding displacement and the LCD module under test
It causes.
Batch provided by the utility model carries out liquid crystal module reliability detection system, the beneficial effect is that: pass through electricity
Source cascade port and internal shared power inlet cascade, realize that muti-piece expands the cascade of plate；It is connected by external power supply input port
External power supply is realized on different expansion plates and is tested under different voltages electric current；When realizing burn-in test to it is multiple not
The test under the conditions of different voltages, electric current etc. is carried out with liquid crystal module, improves the compatibility and practicability of burn-in test.
Detailed description of the invention
Fig. 1 is the functional block diagram that the utility model batch carries out liquid crystal module reliability detection system；
Fig. 2 is the line schematic diagram of backlight voltage selection module or LCD voltage selection module.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses
A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new
The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Figure 1, a kind of batch provided in this embodiment carries out liquid crystal module reliability detection system, including several grades
Expansion board 1, each expansion board 1 by power supply and signal input 11, power supply and signal output 12, external power supply input port 13,
Backlight voltage selection module 14, LCD voltage selection module 15 and the first signal isolation amplification module 16 and second signal isolation are put
Big module 17 is constituted.Wherein, it is connect positioned at the expansion board of the first order 1, power supply and signal input 11 with host 2, the second letter
Number Isolation Amplifier Module 17 is connect with power supply and signal output 12, and power supply and signal output 12 and next stage expand plate 1
Power supply and signal input 11 connect, and are sequentially connected in series, and according to the quantity of LCD module under test 4, select cascade for expanding plate 1
Number.
Wherein, the output of host 2 display signal, control signal, system LCD power supply and system backlight electric power, by power supply and
Signal input provides signal and power supply to expand plate；External power supply input port 13 is connect with external power supply 3, and external power supply 3 wraps
Include external backlight electric power and external LCD power supply.
When LCD module under test 4 is more, power supply provided by host 2 is unable to satisfy test needs, then needs to select to make
It is therefore used by backlight voltage selection module 14 and LCD voltage selection module 15 selection expanded in plate 1 with external power supply 3
The power supply that host 2 provides still uses external power supply 3, selects logic chart as shown in Figure 2.
After backlight voltage selection module 14 and LCD voltage selection module 15 select corresponding power supply, with the first signal isolation
Amplification module 16 connects, and the first signal isolation amplification module 16 can be connect by pinboard 5 or winding displacement 6 with LCD module under test 4,
Transfer 5 plates or winding displacement 6 one end pin number it is consistent with the interface quantity of the first signal isolation amplification module 16, pinboard 5
Or the pin number of the other end of winding displacement 6 is consistent with the interface quantity of LCD module under test 4.
Batch provided by the utility model carries out liquid crystal module reliability detection system, total by power supply cascade port and inside
It is cascaded with power inlet, realizes that muti-piece expands the cascade of plate；External power supply is connected by external power supply input port, is opened up in difference
It realizes in panel and is tested under different voltages electric current；Multiple and different liquid crystal modules are surveyed when realizing burn-in test
Examination, improves the compatibility and practicability of burn-in test.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (6)
1. a kind of batch carries out liquid crystal module reliability detection system, which is characterized in that including several grades of expansion board, the extension
It include power supply and signal input, power supply and signal output, external power supply input port, backlight voltage selection module, LCD on plate
Voltage selection module and the first signal isolation amplification module and second signal Isolation Amplifier Module,
The power supply and signal input positioned at expansion board described in the first order are connect with host, the power supply of the expansion board
And the power supply and the signal input connection of the expansion board of signal output and next stage；
The external power supply input port is connect with external power supply；
The second signal Isolation Amplifier Module is connect with the power supply and signal output；
The backlight voltage selection module and LCD voltage selection module respectively with the power supply and signal input and the outside
Power inlet connection, power supply or external power supply for selecting to provide using the host；
The backlight voltage selection module and LCD voltage selection module pass through the first signal isolation amplification module and prepare liquid
Brilliant mould group connection.
2. a kind of batch according to claim 1 carries out liquid crystal module reliability detection system, it is characterised in that: the master
Machine output display signal, control signal, system LCD power supply and system backlight electric power.
3. a kind of batch according to claim 1 carries out liquid crystal module reliability detection system, it is characterised in that: described outer
Portion's power supply includes external backlight electric power and external LCD power supply, and the external backlight electric power is for adjusting back facet current, the outside
LCD power supply is for adjusting LCD voltage.
4. a kind of batch according to claim 1 carries out liquid crystal module reliability detection system, it is characterised in that: described the
One signal isolation amplification module is equipped at least one.
5. a kind of batch according to claim 4 carries out liquid crystal module reliability detection system, it is characterised in that: at least one
A first signal isolation amplification module is connect by pinboard or winding displacement with the LCD module under test.
6. a kind of batch according to claim 5 carries out liquid crystal module reliability detection system, it is characterised in that: described turn
The pin number of one end of fishplate bar or winding displacement is consistent with the interface quantity of the first signal isolation amplification module, the pinboard
Or the pin number of the other end of winding displacement is consistent with the interface quantity of the LCD module under test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821809981.4U CN209070260U (en) | 2018-11-05 | 2018-11-05 | A kind of batch progress liquid crystal module reliability detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821809981.4U CN209070260U (en) | 2018-11-05 | 2018-11-05 | A kind of batch progress liquid crystal module reliability detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879498A (en) * | 2020-08-17 | 2020-11-03 | 格力电器（郑州）有限公司 | Tool and method capable of testing quality of display screens of air conditioners of different models |
-
2018
- 2018-11-05 CN CN201821809981.4U patent/CN209070260U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879498A (en) * | 2020-08-17 | 2020-11-03 | 格力电器（郑州）有限公司 | Tool and method capable of testing quality of display screens of air conditioners of different models |
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