CN107203058A - liquid crystal display performance test system - Google Patents
liquid crystal display performance test system Download PDFInfo
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- CN107203058A CN107203058A CN201710605691.1A CN201710605691A CN107203058A CN 107203058 A CN107203058 A CN 107203058A CN 201710605691 A CN201710605691 A CN 201710605691A CN 107203058 A CN107203058 A CN 107203058A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 88
- 238000011056 performance test Methods 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 7
- 208000012839 conversion disease Diseases 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The present invention provides a kind of liquid crystal display Performance Test System of terminal, and the system includes：Relay, dc source.By the way that relay is serially connected in the circuit of liquid crystal display, pass through the presetting electric current of the multiple different voltages of direct-current power supply, realize and open in preset time, realize and close in preset time, the default time started is more than the default shut-in time simultaneously, according to display situation of the liquid crystal display under different voltages, judge that liquid crystal display whether there is quality problems.The liquid crystal display Performance Test System that the present invention is provided, it can also be the presetting electric current that certain voltage is repeatedly supplied by dc source, realize and open in preset time, realize and close in preset time, the default time started is less than the default shut-in time simultaneously, according to display situation of the liquid crystal display under different voltages, judge that liquid crystal display whether there is quality problems.
Description
Technical field
The invention belongs to field of liquid crystal, more particularly to a kind of liquid crystal display Performance Test System.
Background technology
As the electronic product such as mobile phone, computer, TV constantly enriches the life ＆ amusement of people, liquid crystal display
(Liquid Crystal Display, abbreviation LCD) LCD use is also more and more extensive, requirement of the user for LCD performance
Also more and more higher.May there are problems that during LCD uses blank screen, colour band, blanking bar, to reduce these problems,
Performance test is carried out in design R＆D process to LCD to be particularly important.
Existing LCD performance tests typically control LCD switch by software system instructions, and carrying out test with software can
To reduce the quantity and operating pressure of staff.When being tested with software, test software access is installed to main frame first
In, main frame runs the operation for realizing software test, is attached by main frame with power management chip, the instruction control that software is sent
Power management chip processed, then power management chip controls the operation of LCD display circuit again, and then obtains test knot by software
Really.
But, in the test mode of prior art, the instruction that main frame is sent by software is during execution by master
LCD display circuit is controlled again after machine, instruction to send speed different from the response speed of hardware, so as to cause
The anomaly occurred in test process.
The content of the invention
In order to solve the anomaly that above-mentioned performance test is brought, the present invention provides a kind of liquid crystal display performance test system
System.
First aspect present invention provides a kind of liquid crystal display Performance Test System of terminal, and the system includes：Relay,
Dc source.
The relay includes：Positive pole input connecting line, negative pole input connecting line and output connecting line.
The dc source includes：Positive lead and negative lead.
The positive pole inputs connecting line, the positive lead for connecting the dc source；The negative pole input
Connecting line, the power supply circuit positive pole for connecting terminal.
The output connecting line, the on-off circuit for connecting the terminal.
The dc source, the presetting electric current for inputting repeatedly different voltages to the terminal.
Further, the relay, is additionally operable to input the presetting of different voltages to the terminal in the dc source
During electric current, the terminal is controlled to open in the default opening time, or, control the terminal to close in the default shut-in time.
Further, the system also includes：Processor, picture pick-up device, the picture pick-up device and processor connection.
The picture pick-up device, the liquid crystal display displayed content for shooting the terminal, and by the liquid crystal display
Device displayed content is sent to the processor.
The processor, for receiving the liquid crystal display displayed content, and shows that the liquid crystal display shows
Show content.
Further, the processor is additionally operable to connect the dc source.
The dc source, specifically for inputting repeatedly different voltages to the terminal under the control of the processor
Presetting electric current.
Further, the processor is additionally operable to connect the relay.
When the relay, presetting electric current specifically for inputting different voltages to the terminal in the dc source,
The terminal is controlled to open in the default opening time under the control of the processor, or, control institute in the default shut-in time
State terminal closing.
Further, the default opening time is more than the default shut-in time.
The liquid crystal display Performance Test System for the terminal that the present invention is provided, the system includes relay and direct current
Source, the positive pole input connecting line of relay is connected on the positive lead of dc source, the negative pole input connecting line of relay
The power supply circuit positive pole of terminal is connected to, while the output connecting line of relay is connected on the on-off circuit of terminal, direct current
Power supply inputs repeatedly the presetting electric current of different voltages to terminal, and relay, dc source and terminal connect into circuit, direct current
Source exports the supply current of predeterminated voltage, connection circuit.During dc source is switched on or switched off, relay connects on-off
Open, so as to realize that the on-off circuit of the liquid crystal display of terminal is switched on or switched off.Dc source is during power supply, and output is not
With the presetting electric current of voltage, different display shapes are presented in the liquid crystal display of terminal in the presence of the presetting electric current of different voltages
State, according to these different dispaly states judge the liquid crystal display of terminal unlatching during, if due to voltage
There is anomaly in fluctuation.By the way that relay is accessed in circuit, electricity is connected or closed by the closure of relay, closing function
Road, go round and begin again completion test, the demand to personnel is reduced, so as to reduce cost.
Second aspect of the present invention provides a kind of liquid crystal display Performance Test System, and the system includes：Relay, direct current
Source.
The relay includes：Positive pole input connecting line, negative pole input connecting line and output connecting line.
The dc source includes：Positive lead and negative lead.
The positive pole inputs connecting line, the power supply circuit positive pole for connecting terminal；The negative pole inputs connecting line, is used for
Connect the power supply circuit negative pole of terminal.
The dc source inputs the supply current of predeterminated voltage to the terminal.
The output connecting line, the on-off circuit for connecting the terminal.
Further, the relay, for controlling the terminal to open in the default opening time, or, in default pass
Terminal described in time control is closed to close.
Further, the default opening time is less than the default shut-in time.
In the liquid crystal display Performance Test System that the present invention is provided, relay, dc source are provided with the system, will
The positive pole input connecting line and negative pole input connecting line of relay are connected respectively to the positive pole and negative pole of the power supply circuit of terminal, and
The output connecting line of relay is connected on the on-off circuit of terminal, relay, dc source and terminal connect into circuit,
Dc source exports the supply current of predeterminated voltage, connection circuit.The input of relay is connected into terminal in the system to supply
In circuit, the output end of relay is connected in the on-off circuit of terminal, power supply exports the supply current of predeterminated voltage, eventually
Different dispaly states are presented in the liquid crystal display at end in the presence of the supply current of predeterminated voltage, different aobvious according to these
Show that the liquid crystal display of condition adjudgement terminal whether there is anomaly during lighting.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, being used required in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
The schematic diagram of the liquid crystal display Performance Test System for the terminal that Fig. 1 provides for one embodiment of the invention.
The schematic diagram for the liquid crystal display Performance Test System that Fig. 2 provides for one embodiment of the invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The schematic diagram for the terminal liquid crystal display Performance Test System that Fig. 1 provides for one embodiment of the invention.
As described in Figure 1, the system includes：Relay 1, dc source 2.
Optionally, the relay 1 includes：Positive pole input connecting line 3, negative pole input connecting line 4 and output connecting line 5.
Specifically, relay has at least two output contacts, it is however generally that, circuit structure is connected to the output of relay
Contact, according to the different conditions connection circuit or disconnecting circuit of output contact.According to output contact in relay no power
Output contact, can be divided into following citation form by different shape：Open type contact relay, closed type contact relay and
Conversion hysteria relay.
The relay of open type contact refers to, in the case of relay is cold, and two contacts of relay, which are in, to be disconnected
State；The relay of closed type contact refers to, in the case of relay is cold, and two contacts of relay are in closed form
State；The relay of conversion hysteria contact, including three contacts, there is a movable contact, two stationary contacts, in the cold feelings of relay
Under condition, movable contact is disconnected with one of stationary contact, is closed with another, and after coil electricity, movable contact is just moved, and is made original disconnected
Open into closure, closed originally into off-state, reach the purpose of conversion.Such contact sets are referred to as transfer contact.
Specifically, above-mentioned relay 1 can use open type contact relay, closed type contact relay and conversion hysteria
Relay is any.The contact portion of above-mentioned relay 1 has output connecting line 5.
Optionally, the dc source 2 includes：Positive lead 6 and negative lead 7.
The positive pole inputs connecting line 3, the positive lead 6 for connecting the dc source 2；The negative pole is defeated
Enter connecting line 4, the positive pole of power supply circuit 10 for connecting terminal 8.
The output connecting line 5, the on-off circuit 9 for connecting the terminal 8.
Specifically, above-mentioned output connecting line 5 can be connected with the switching on and shutting down interface of on-off circuit 9.
The dc source 2, the presetting electric current for inputting repeatedly different voltages to the terminal 8.
Specifically, by above-mentioned relay 1 using being illustrated exemplified by open type contact relay, the output of relay 1 connects
Wiring 5 is connected to the interface of the on-off circuit 9 of terminal 8, by the interface of the on-off circuit 9 of terminal 8 and the normally opened contact of relay 1
Connect.Positive pole input connecting line 3 on relay 1 is connected with the cathode output end of dc source 2, and the negative pole on relay 1 is defeated
Enter connecting line 4 to be connected with the power supply circuit 10 of terminal 8, and be connected by the power supply circuit 10 of terminal 8 with the negative pole of dc source,
So as to form the power-on circuit of connection.When dc source 2 is powered, relay 1, the coil electricity of relay 1, adhesive relay are connected
The armature of device 1, the normally opened contact of closing relay 1 connects circuit, after connecting circuit for a period of time, circuit is disconnected, relay
1 disconnects normally opened contact, and now, circuit is off, and circuit was disconnected after a period of time, is again switched on dc source 2, repeats
Above-mentioned steps.With the performance test of close access, the mode execution cycle property for disconnecting path.
In the present embodiment, above-mentioned terminal liquid crystal display Performance Test System includes relay and dc source, relay
The positive pole input connecting line of device is connected on the positive lead of dc source, and the negative pole input connecting line of relay is connected to end
The power supply circuit positive pole at end, while the output connecting line of relay is connected on the on-off circuit of terminal, dc source is to end
The presetting electric current of the multiple different voltages of end input, relay, dc source and terminal connect into circuit, and dc source output is pre-
If the supply current of voltage, connection circuit.During dc source is switched on or switched off, relay is switched on or switched off, so that
Realize that the on-off circuit of the liquid crystal display of terminal is switched on or switched off.Dc source exports different voltages during power supply
Presetting electric current, different dispaly states, root are presented in the presence of the presetting electric current of different voltages in the liquid crystal display of terminal
According to these different dispaly states judge the liquid crystal display of terminal unlatching during, if because the fluctuation of voltage is deposited
In anomaly.By the way that relay is accessed in circuit, circuit, week are connected or closed by the closure of relay, closing function
And completion test is renewed, the demand to personnel is reduced, so as to reduce cost.
Further, the relay 1, is additionally operable to input the pre- of different voltages to the terminal in the dc source 2
When adjusting electric current, the terminal is controlled to open in the default opening time, or, control the terminal to close in the default shut-in time.
Specifically, during being powered with dc source 2, dc source 2 can provide the presetting electricity of different voltages
Stream, for example, can be 4.2V, 3.8V, 3.6V, but be not limited.Dc source 2 exports the presetting electric current of different voltages to end
End is powered, and different dispaly states may be presented when receiving the presetting electric current of different voltages in the liquid crystal display of terminal 8,
By observing different dispaly states in this process, it can detect the liquid crystal display of terminal 8 under above-mentioned different voltages
Display situation, can also detect it is above-mentioned by a voltage change to another voltage when, the liquid crystal display of terminal 8 it is aobvious
Show situation, show that the liquid crystal display of terminal 8 is existing with the presence or absence of flower screen etc. under different power voltage supplies and in voltage change process
As so that draw the liquid crystal display of terminal 8 is influenceed situation by voltage change.If there are the phenomenons such as flower screen, illustrate the end
The liquid crystal display at end 8 is by voltage variations affect, if occurring without the phenomenons such as flower screen, illustrate the liquid crystal display of the terminal 8 not by
Voltage variations affect.
Specifically, during the open and close of terminal 8, being turned on and off for terminal 8, one section are realized by preset time
Terminal 8 is opened in the power supply of dc source 2 in time, and the power-off of dc source 2 closes a terminal 8 after a period of time, and a mistake closed is opened one
Cheng Zhong, the one of the liquid crystal display of terminal 8, which opens one, closes, by periodically open, close a terminal 8 liquid crystal display, draw
Display situation of the liquid crystal display of terminal 8 in this journey.
Further, above-mentioned preset time realizes being turned on and off for terminal, refers to that dc source 2 exports same voltage
In the case of predetermined current, realization is turned on and off, while during also including being turned on and off, dc source 2 is changed
Export the predetermined current of different voltages.
Further, said system also includes：Processor 11, picture pick-up device 12, the picture pick-up device 12 and the processing
Device 11 is connected.Processor 11 can be the processor of the equipment such as computer, tablet personal computer.
Optionally, above-mentioned picture pick-up device 12, the liquid crystal display displayed content for shooting the terminal 8, and by institute
State liquid crystal display displayed content and be sent to the processor 11.
The processor 11, for receiving the liquid crystal display displayed content of the terminal 8, and shows the terminal 8
Liquid crystal display displayed content.
Specifically, detect terminal 8 liquid crystal display be powered when display situation when, picture pick-up device 12 can be set,
Display situation of the liquid crystal display of terminal 8 when being powered is shot with picture pick-up device 12, then picture pick-up device 12 is remembered
The content of record sends processor 11 to, and content that picture pick-up device 12 that tester can be in processor 11 is transmitted judges
The liquid crystal display of terminal 8 whether there is problem during energization and during different voltage changes.Shooting is set
Equipment 12, can make tester without the display situation of the liquid crystal display of real-time monitored terminal 8, can be in detection terminal 8
Liquid crystal display handle other things while show situation, the liquid crystal display of terminal 8 is shown into feelings with picture pick-up device 12
Condition is recorded and sends processor 11 to, and 11 pairs of record contents of processor are shown.
Further, the processor 11 is additionally operable to connect the dc source 2.
Optionally, above-mentioned dc source 2 is more specifically for being inputted under the control of the processor 11 to the terminal 8
The presetting electric current of secondary different voltages.
Specifically, dc source 2 is connected with processor 11, is stored with processor 11 for controlling dc source 2 to export
The operation of the predetermined current of different voltages, within the default time, the control dc source 2 of processor 11 exports the pre- of different voltages
Electric current is adjusted, optional voltage is 4.2V, 3.8V or 3.6V, but is not limited.Converted with the control dc source 2 of processor 11 defeated
The voltage gone out, realizes the conversion of the on-off circuit voltage to the liquid crystal display of terminal 8.
Further, the processor 11 is additionally operable to connect the relay 1.
Optionally, above-mentioned relay 1, specifically for inputting the pre- of different voltages to the terminal 8 in the dc source 2
When adjusting electric current, the terminal 8 is controlled to open in the default opening time under the control of the processor 11, or, in default pass
Terminal 8 described in time control is closed to close.
Specifically, connection is realized between relay 1 and processor 11, processor 11 can be with control relay 1 when default
Interior realize is turned on and off, and the control being turned on and off to relay 1 is realized with processor 11, is seen in real time without testing staff
The survey time, so as to be turned on and off relay 1 according to the time, and realize what relay 1 was turned on and off with processor 11
Control improves the accuracy for the time that is turned on and off, so as to improve the accuracy of detection.
Further, the default opening time is more than the default shut-in time.
Specifically, it is 18 seconds that can set the default opening time, and it is 2 seconds to preset the shut-in time, but is not limited.Pre-
If in the opening time, relay 1 is connected with the on-off circuit of terminal 8, to the LCD device electric supply of terminal 8, and in default pass
Close in the time, disconnected between the on-off circuit of relay 1 and terminal 8, now, the liquid crystal display of terminal 8 is in power-off
State, the display situation of the liquid crystal display of the terminal 8 during by observing close access, disconnection path, it can be deduced that terminal 8
Display situation of the liquid crystal display in the case of quick power-on or power-off, so as to draw the liquid crystal display of terminal 8 in direct current
By being influenceed situation during the voltage change of power supply 2.
The schematic diagram for the liquid crystal display Performance Test System that Fig. 2 provides for one embodiment of the invention.
As shown in Fig. 2 the present invention also provides liquid crystal display Performance Test System, the system includes：Relay 1, direct current
Power supply 2.
The relay 2 includes：Positive pole input connecting line 3, negative pole input connecting line 4 and output connecting line 5.
Specifically, relay has at least two output contacts, it is however generally that, circuit structure is connected to the output of relay
Contact, according to the different conditions connection circuit or disconnecting circuit between output contact.According to output contact in relay no power
When different shape, output contact can be divided into following citation form：Open type contact relay, closed type contact relay
And conversion hysteria relay.
The relay of open type contact refers to, in the case of relay is cold, and two contacts of relay, which are in, to be disconnected
State；The relay of closed type contact refers to, in the case of relay is cold, and two contacts of relay are in closed form
State；The relay of conversion hysteria contact, including three contacts, there is a movable contact, two stationary contacts, in the cold feelings of relay
Under condition, movable contact is disconnected with one of stationary contact, is closed with another, and after coil electricity, movable contact is just moved, and is made original disconnected
Open into closure, closed originally into off-state, reach the purpose of conversion.Such contact sets are referred to as transfer contact.
Specifically, above-mentioned relay 1 can use open type contact relay, closed type contact relay and conversion hysteria
Relay is any.Contact portion has output connecting line 5.
The dc source 2 includes：Positive lead 6 and negative lead 7.
The positive pole inputs connecting line 3, the positive pole of power supply circuit 10 for connecting terminal 8；The negative pole inputs connecting line
4, the negative pole of power supply circuit 10 for connecting terminal 8.
The dc source 2 inputs the supply current of predeterminated voltage to the terminal 8.
The output connecting line 5, the on-off circuit 9 for connecting the terminal 8.
Specifically, above-mentioned output connecting line 5 can be connected with the interface of on-off circuit 9.
Specifically, in the system, interface of the dc source 2 directly with the power supply circuit 10 of terminal 8 is connected, dc source 2
Powered directly to the power supply circuit 10 of terminal 8.
Specifically, by above-mentioned relay 1 using being illustrated exemplified by open type contact relay, the output of relay 1 connects
Wiring 5 is connected to the interface of the on-off circuit 9 of terminal 8, by the interface of the on-off circuit 9 of terminal 8 and the normally opened contact of relay 1
Connect.When dc source 2 is powered, relay 1, the coil electricity of relay 1, the armature of attracting electric relay 1, closing relay are connected
The normally opened contact of device 1, connects circuit, after connecting circuit for a period of time, circuit is disconnected, relay 1 disconnects normally opened contact, this
When, circuit is off, and circuit was disconnected after a period of time, is again switched on dc source 2, is repeated the above steps.
In the liquid crystal display Performance Test System provided in the present embodiment, relay, dc source are provided with, by relay
The positive pole input connecting line and negative pole input connecting line of device are connected respectively to the positive pole and negative pole of the power supply circuit of terminal, and will be after
The output connecting line of electrical equipment is connected on the on-off circuit of terminal, and relay, dc source and terminal connect into circuit, direct current
Power supply exports the supply current of predeterminated voltage, connection circuit.The input of relay is connected into terminal in the system to power electricity
Lu Zhong, the output end of relay is connected in the on-off circuit of terminal, and power supply exports the supply current of predeterminated voltage, terminal
Different dispaly states are presented in liquid crystal display in the presence of the supply current of predeterminated voltage, according to these different display shapes
State judges that the liquid crystal display of terminal whether there is anomaly during lighting.
Further, similar to the above embodimentsly, said system can also include：Processor 11, picture pick-up device 12, institute
State picture pick-up device 12 and the processor 11 is connected.
Optionally, above-mentioned picture pick-up device 12 is for shooting display of the liquid crystal display of the terminal 8 in galvanization
Content, and the liquid crystal display displayed content is sent to the processor 11.
Optionally, above-mentioned processor 11 is used to receive the liquid crystal display displayed content, and shows the liquid crystal
Show device displayed content.
Specifically, detect terminal 8 liquid crystal display be powered when display situation when, picture pick-up device 12 can be set,
Display situation of the liquid crystal display of terminal 8 when being powered is shown with picture pick-up device 12, then picture pick-up device 12 is remembered
The content of record sends processor 11 to, and content that picture pick-up device 12 that tester can be in processor 11 is transmitted judges
The liquid crystal display of terminal 8 whether there is problem during lighting.Set picture pick-up device 12, can make tester without
The display situation of the liquid crystal display of real-time monitored terminal 8, can be while the liquid crystal display for detecting terminal 8 shows situation
Other things are handled, the liquid crystal display display situation of terminal 8 is recorded with picture pick-up device 12 and processor 11 is sent to, handled
11 pairs of record contents of device are shown.
Further, the processor 11 is additionally operable to connect the dc source 2.
Specifically, dc source 2 is connected with processor 11, is stored with processor 11 for controlling dc source 2 to switch
Operation, in certain period of time, the control dc source 2 of processor 11 is powered, after a period of time, the control dc source of processor 11
2 power-off.It is controlled with processor 11, tester can be made electric without the switch for oneself realizing dc source 2, while use
Managing device 11 significantly more efficient can control the opening/closing time of dc source 2.
Further, the processor 11 is additionally operable to connect the relay 1；The relay 1, in default unlatching
Terminal 8 is opened described in time control, or, control the terminal 8 to close in the default shut-in time.
Optionally, above-mentioned relay 1 controls the terminal 8 to open under the control of the processor 11 in the default opening time
Open, or, control the terminal 8 to close in the default shut-in time.Be controlled with processor 11, can make tester without
Being turned on and off for relay 1 oneself is realized, while being turned on and off with the significantly more efficient control relay 1 of energy of processor 11
Time.
Specifically, it is 2.5 seconds that can set the default opening time, and it is 17.5 seconds to preset the shut-in time, but is not limited.
Within the default opening time, relay 1 is connected with the on-off circuit 9 of terminal 8, to the LCD device electric supply of terminal 8, and pre-
If in the shut-in time, being disconnected between the on-off circuit 9 of relay 1 and terminal 8, now, the liquid crystal display of terminal 8 is in
Off-position, the display situation of the liquid crystal display of the terminal 8 during by observing close access, disconnection path, it can be deduced that eventually
The liquid crystal display of liquid crystal display terminal 8 during lighting at end 8 whether there is defect.In the present embodiment, due to pre-
If the time opened is shorter than the time of default closing, the liquid crystal display of terminal 8 is closed after quickly opening, when observation is closed and
After closing, the display situation of the liquid crystal display of terminal 8 repeatedly after test, is drawn, the liquid crystal display of terminal 8 is quickly being opened
Open, close during display situation, according to above-mentioned display situation may determine that terminal 8 liquid crystal display whether there is matter
Amount problem.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that；Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or substitutions, the essence of appropriate technical solution is departed from various embodiments of the present invention technical side
The scope of case.
Claims (9)
1. a kind of liquid crystal display Performance Test System of terminal, it is characterised in that including：Relay, dc source；
The relay includes：Positive pole input connecting line, negative pole input connecting line and output connecting line；
The dc source includes：Positive lead and negative lead；
The positive pole inputs connecting line, the positive lead for connecting the dc source；The negative pole input connection
Line, the power supply circuit positive pole for connecting terminal；
The output connecting line, the on-off circuit for connecting the terminal；
The dc source, the presetting electric current for inputting repeatedly different voltages to the terminal.
2. system according to claim 1, it is characterised in that the relay, it is additionally operable in the dc source to institute
When stating the presetting electric current of the different voltages of terminal input, the terminal is controlled to open in the default opening time, or, in default closing
Terminal described in time control is closed.
3. system according to claim 2, it is characterised in that also include：Processor, picture pick-up device, the picture pick-up device
With processor connection；
The picture pick-up device, the liquid crystal display displayed content for shooting the terminal, and by the liquid crystal display institute
Display content is sent to the processor；
The processor, for receiving the liquid crystal display displayed content, and shows in shown by the liquid crystal display
Hold.
4. system according to claim 3, it is characterised in that the processor is additionally operable to connect the dc source；
The dc source, specifically for inputting repeatedly the presetting of different voltages to the terminal under the control of the processor
Electric current.
5. system according to claim 3, it is characterised in that the processor is additionally operable to connect the relay；
The relay, specifically in presetting electric current of the dc source to the different voltages of terminal input, in institute
State and control the terminal unlatching under the control of processor in the default opening time, or, control the end in the default shut-in time
End is closed.
6. system according to claim 2, it is characterised in that when the default opening time is more than the default closing
Between.
7. a kind of liquid crystal display Performance Test System, it is characterised in that including：Relay, dc source；
The relay includes：Positive pole input connecting line, negative pole input connecting line and output connecting line；
The dc source includes：Positive lead and negative lead；
The positive pole inputs connecting line, the power supply circuit positive pole for connecting terminal；The negative pole inputs connecting line, for connecting
The power supply circuit negative pole of terminal；
The dc source inputs the supply current of predeterminated voltage to the terminal；
The output connecting line, the on-off circuit for connecting the terminal.
8. system according to claim 7, it is characterised in that the relay, for controlling institute in the default opening time
Terminal unlatching is stated, or, control the terminal to close in the default shut-in time.
9. system according to claim 8, it is characterised in that when the default opening time is less than the default closing
Between.
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| CN201710605691.1A CN107203058A (en) | 2017-07-24 | 2017-07-24 | liquid crystal display performance test system |
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| CN201710605691.1A CN107203058A (en) | 2017-07-24 | 2017-07-24 | liquid crystal display performance test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111579903A (en) * | 2020-05-18 | 2020-08-25 | 格力电器（合肥）有限公司 | Display module testing tool and testing method |
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Application publication date: 20170926 |