CN207457645U - A kind of LCD probe detection devices and LCD AOI equipment - Google Patents
A kind of LCD probe detection devices and LCD AOI equipment Download PDFInfo
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- CN207457645U CN207457645U CN201721672522.1U CN201721672522U CN207457645U CN 207457645 U CN207457645 U CN 207457645U CN 201721672522 U CN201721672522 U CN 201721672522U CN 207457645 U CN207457645 U CN 207457645U
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Abstract
This application discloses a kind of LCD probe detection devices and LCD AOI equipment, which includes：Probe card and contact plate；The contact plate is equipped with the pad and metal-oxide-semiconductor being connected；The probe card is equipped with probe, and the probe is crimped onto on the pad；Described device further includes：The LED Unit for being provided with indicator light being electrically connected with the probe card；And the power supply being electrically connected with the LED Unit.If the probe pad connection corresponding on contact plate on probe card is good, circuit loop is formed, and metal-oxide-semiconductor conducting, indicator light all turns on over the ground, and indicator light shines；If the probe contact pads corresponding on contact plate on probe card are bad or probe card on tissue damage, after being powered, circuit loop can not be formed, metal-oxide-semiconductor is not turned on, and then indicator light does not shine.Thus it can directly judge whether the position of probe card and contact plate whether to dock good and each probe intact.
Description
Technical field
This application involves liquid crystal panel detection technique fields more particularly to a kind of LCD probe detection devices and LCD AOI to set
It is standby.
Background technology
LCD (English full name：Liquid Crystal Display；Chinese full name：Liquid crystal display) construction be two
The crystal of liquid is placed among the parallel glass of piece, two sheet glass centre is there are many tiny electric wire vertically and horizontally, through logical
Rod-shaped crystal molecular changes direction is controlled whether electricity, light is reflected into generation picture.The picture that LCD screen generates LCD
Face is shown.Since LCD screen complex process, defect kind are various, the defects of LCD screen detection become and produced
One of most important link in journey.Commonly used equipment is AOI in the detection of the defects of LCD screen.AOI (English full name：Automatic
Optic Inspection；Chinese full name：Automatic optics inspection), it is come normal to what is run into welding production based on optical principle
See the equipment that defect is detected.Can LCD screen be lit, it is necessary to be detected by AOI.
LCD AOI equipment is detection device the defects of being designed based on AOI and be directed to LCD screen.As shown in Figure 1, it is LCD
The basic structure schematic diagram of AOI fully-automatic equipments, including signal generator 6, jig plate 7, Signals Transfer Board 8, probe card 9
With contact plate 10.Signal generator 6 is arranged on fixed detection website with probe card 9, is connected by multicore signal wire.Contact plate
10th, Signals Transfer Board 8 and LCD screen 011 are mounted on jig plate 7.Contact plate 10 is equipped with and can be contacted with probe on probe card 9
Pad.Contact plate 10 is connected again by multicore signal wire with Signals Transfer Board 8, and Signals Transfer Board 8 is crimped with LCD screen 011
It is good.Jig plate 7 is moved with wire body, stops movement to detection website.Probe card 9 is adjusted to be pressed with contact plate 10, host computer
Order is sent to signal generator 6 to carry out lighting Inspection.After the completion of detection, probe card 9 and contact plate 10 separate, gauge
Plate 7 continues flowing and carries out subsequent job.Another jig plate in wire body reaches detection website simultaneously, repeats above-mentioned action.
In above-mentioned detection process, LCD screen 011 is being lit it is critical that ensuring each on probe card 9
Probe can be exactly crimped onto on the pad of contact plate 10.Probe on probe card 9 can not contact connection with contact plate 10
Situation it is usual there are two types of.First, probe card 9 and 10 misalignment of contact plate, pressing is insufficient, causes loose contact.Second, work as
During a certain tissue damage, loose contact is easy to cause.In the case of the first, since the probe on probe card 9 is compressed in spy
Between needle plate 9 and contact plate 10, tuner can not observe directly the pressing situation of probe and contact plate 10, can only finely tune probe
The position of plate 9 and contact plate 10 makes the two fully pressing.In the second situation, if a certain tissue damage, it is necessary to by debugging
Person tests the probe that can just find to break down one by one, and replaces the probe.Therefore, in common debugging process, tuner can not
Directly judge the position of probe card 9 and contact plate 10 whether to connecting and whether each probe be intact.
Utility model content
This application provides a kind of LCD probe detection devices and LCD AOI equipment, to solve existing LCD screen of lighting
In work, tuner can not directly judge whether the position of probe card and contact plate dock good and each probe
The problem of intact.
In order to achieve the above object, the utility model provides following technical solution：
This application provides a kind of LCD probe detection devices, described device includes：Probe card and contact plate；
The contact plate is equipped with the pad and metal-oxide-semiconductor being connected；
The probe card is equipped with probe, and the probe is crimped onto on the pad；
Described device further includes：
The LED Unit for being provided with indicator light being electrically connected with the probe card；And
The power supply being electrically connected with the LED Unit.
Preferably, in above-mentioned LCD probe detection devices, the probe includes power probe, grounded probe and signal probe；
The power probe and the grounded probe are respectively connected to the LED Unit.
Preferably, in above-mentioned LCD probe detection devices, power interface and ground interface are provided on the LED Unit,
The power interface connects the power supply and the power probe respectively；The ground interface is connected with the grounded probe.
Preferably, in above-mentioned LCD probe detection devices, the grid of the metal-oxide-semiconductor connects the power probe, the MOS
The source electrode of pipe connects the grounded probe, and the drain electrode of the metal-oxide-semiconductor connects the signal probe.
Preferably, in above-mentioned LCD probe detection devices, the probe card is equipped with first input end, the first input end
It is electrically connected with the LED Unit.
Preferably, in above-mentioned LCD probe detection devices, the indicator light accesses first input by multicore signal wire
End.
Preferably, in above-mentioned LCD probe detection devices, described device further includes：Pull-up resistor, the power supply pass through described
Pull-up resistor is linked into the LED Unit.
Preferably, in above-mentioned LCD probe detection devices, the indicator light is light emitting diode.
The application also provides a kind of LCD AOI equipment, and the equipment includes：Signal generator, jig plate, Signals Transfer Board
With the LCD probe detection devices, wherein：
The signal generator is connected with the probe card in the LCD probe detection devices；
The Signals Transfer Board is connected with the contact plate in the LCD probe detection devices；
The contact plate and the Signals Transfer Board are arranged on the jig plate.
Preferably, in above-mentioned LCD AOI equipment, the signal generator passes through in multicore signal wire and the probe card
Second input terminal connects；The drain electrode of metal-oxide-semiconductor in the contact plate connects the Signals Transfer Board.
Technical solution provided by the utility model includes following advantageous effect：
This application provides a kind of LCD probe detection devices and LCD AOI equipment, in the LCD probe detection devices, by electricity
Source is linked into LED Unit, and the metal-oxide-semiconductor on indicator light, probe card and contact plate on LED Unit is sequentially connected, and forms circuit
Circuit.If power supply is powered, electric current will pass sequentially through LED Unit, probe card and contact plate.If the probe on probe card is with connecing
Corresponding pad connection is good on touch panel, then circuit loop is formed, and metal-oxide-semiconductor conducting, indicator light all turns on over the ground, indicator light hair
Light；If the probe contact pads corresponding on contact plate on probe card are bad or probe card on tissue damage, be powered
Afterwards, circuit loop can not be formed, metal-oxide-semiconductor is not turned on, and then indicator light does not shine.Thus it can directly judge probe card and connect
Whether whether the position of touch panel docks good and each probe intact.
Description of the drawings
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the basic structure schematic diagram of LCD AOI equipment in the prior art；
Fig. 2 is the basic structure schematic diagram for the LCD probe detection devices that the utility model embodiment provides；
Fig. 3 is the enlarged diagram of LED Unit in Fig. 2；
Fig. 4 is the enlarged diagram of contact plate in Fig. 2；
Fig. 5 is the basic structure schematic diagram for the LCD AOI equipment that the utility model embodiment provides；
Fig. 6 is the work flow diagram for the LCD AOI equipment that the utility model embodiment provides.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The example of the consistent apparatus and method of some aspects be described in detail in the appended claims, the utility model.
Referring to the basic structure schematic diagram of Fig. 2, the utility model embodiment LCD probe detection devices provided.By Fig. 2 institutes
Show, LCD probe detection devices provided by the embodiments of the present application include：LED Unit 1, probe card 2, contact plate 3 and power supply 4.Tool
Body, indicator light 11 is provided on LED Unit, indicator light 11 is used to indicate whether probe card 2 is connected with contact plate 3.Indicator light
Plate 1 is electrically connected with probe card 2, and probe card 2 is equipped with multiple probes.Contact plate 3 is equipped with multiple pads and multiple MOS pipes 31,
Wherein, each pad connects a metal-oxide-semiconductor 31.Connection between probe card 2 and contact plate 3 then passes through the phase of probe and pad
Contact and the conducting of metal-oxide-semiconductor 31 are realized.Power supply 4 is linked into LED Unit 1, as a result, by power supply 4 for indicator light 11, probe,
Pad and metal-oxide-semiconductor 31 provide electric energy, and then realize the electrical connection of LED Unit 1, probe card 2 and contact plate 3, and form circuit and return
Road.
If power supply 4 is powered, electric current will pass sequentially through LED Unit 1, probe card 2 and contact plate 3.If on probe card 2
Probe pad crimping corresponding on contact plate 3 is good, then circuit loop is formed, and metal-oxide-semiconductor 31 turns on, and indicator light 11 is whole over the ground
Conducting, indicator light 11 shine.If the probe contact pads corresponding on contact plate 3 on probe card 2 are bad or probe card 2
On tissue damage, then be powered after, circuit loop can not be formed, metal-oxide-semiconductor 31 is not turned on, and then indicator light 11 does not shine.By
This can directly judge whether the position of probe card 2 and contact plate 3 docks good and each probe intact.
Further, above-mentioned probe includes power probe 23, grounded probe 24 and multiple signal probes 25.23 He of power probe
Grounded probe 24 is respectively connected to LED Unit 1 as power supply signal.Each signal probe 25 corresponds to an indicator light 11, uses
Whether contacted well in each signal probe 25 of detection and corresponding pad.Referring to Fig. 3, provided for the utility model embodiment
The enlarged diagram of LED Unit in LCD probe detection devices.As shown in Figure 3, multiple indicator lights are provided on LED Unit 1
11st, power interface 12 and ground interface 13, power interface 12 connect power supply 4 and power probe 23 respectively；Ground interface 13 is with connecing
Ground probe 24 connects.It is that the amplification of contact plate in the LCD probe detection devices that the utility model embodiment provides is shown referring to Fig. 4
It is intended to.As shown in Figure 4, contact plate 3 is equipped with multigroup pad being connected and metal-oxide-semiconductor 31, each pad is one corresponding
Metal-oxide-semiconductor 31.Wherein, the grid connection power probe 23 of metal-oxide-semiconductor 31, the source electrode connection grounded probe 24 of metal-oxide-semiconductor 31, MOS pipes 31
Drain electrode connection signal probe 25.
Power supply 4 is linked into the power interface 12 in LED Unit 1 first, accesses power supply for indicator light 11, while power supply connects
Mouth 12 is connected with power probe 23, and power probe 23 crimps again with being connected with the pad of grid in metal-oxide-semiconductor 31.LED Unit 1
In ground interface 13 be connected with grounded probe 24, the pad of the source electrode with being connected with metal-oxide-semiconductor 31 again of grounded probe 24 crimps.Refer to
Show that the indicator light 11 in lamp plate 1 is connected in probe card 2, by the signal probe 25 on probe card 2 and be connected with MOS pipes 31
The pad crimping of middle drain electrode.Thus circuit connect, when power supply 4 is powered, and the probe on probe card 2 with it is right on contact plate 3
The pad crimping answered is good, then circuit loop is formed, and metal-oxide-semiconductor 31 turns on, and indicator light 11 all turns on over the ground, and indicator light 11 is sent out
Light.
It, can be according to the quantity of the indicator light 11 on required setting LED Unit 1, and the quantity of signal probe 25 in the application
And the quantity of metal-oxide-semiconductor 31 is identical with the quantity of indicator light 11.It, can if there is non-luminous indicator light 11 after energization
According to non-luminous indicator light 11, the signal probe 25 damaged on corresponding probe card 2 or the signal of loose contact are found out
Probe 25.
The characteristics of above-mentioned metal-oxide-semiconductor 31 is voltage-controlled device, has reaction soon, low in energy consumption, high-impedance state.Work as LED Unit
1 with probe card 2 when not being connected, and the grid of metal-oxide-semiconductor 31 does not have voltage, drains the resistance between source level close to infinity, so
It can ensure that the signal in drain electrode will not be leaked to the source electrode of ground connection up by metal-oxide-semiconductor 31.And when LED Unit 1 and probe card
After 2 connections, since power supply 4 is powered, metal-oxide-semiconductor 31 turns on, and drain electrode is almost nil with source resistance, so as to ensure that the point of indicator light
It is bright.In addition, designing metal-oxide-semiconductor 31 on contact plate 3, there is no need to the position of metal-oxide-semiconductor 31 and contact plate 3 is changed when testing probe
It puts.What is done is connection and the posture of inspection probe and adjustment probe card 2 by LED Unit 1 and probe card 2.Root
Confirming probe mass and contact problems according to the display situation of indicator light, phenomenon is very clear, and entire debugging operations are easy to use,
Debug time can be greatlyd save.
The utility model embodiment provide LCD probe detection devices in, probe card 2 be equipped with first input end 21, first
Input terminal 21 is electrically connected with LED Unit 1.Wherein, the indicator light 11 in LED Unit 1 accesses described the by multicore signal wire
One input terminal 21.The service life of multicore signal wire is long and cost-effective, and the PVC material of outer surface makes its wear-resisting and stability
Height, suitable for interior.
In order to further optimize above-mentioned technical proposal, the LCD probe detection devices in the application further include pull-up resistor 5,
Power supply 4 is first by pull-up resistor 5, then is linked into LED Unit 1.11 1 termination power of indicator light in LED Unit 1, separately
One end is grounded, if voltage is slightly larger, it indicates that lamp 11 is easily burned in circuit, and current limliting can be played herein by adding in pull-up resistor
Effect, prevents indicator light 11 to be burned.
In the application, indicator light 11 is light emitting diode.The efficiency consumed energy of light emitting diode is relatively the same as the white heat of light efficiency
Lamp reduces 80% or so, and 40% or so is reduced compared with energy-saving lamp.By chemical modification method, the energy band knot of material can also be adjusted
Structure and energy gap realize that red, yellow, green and blue orange is multicolor luminous and at low cost.Therefore indicator light 11 is preferably luminous two in the application
Pole pipe.
Referring to the basic structure schematic diagram of Fig. 5, the utility model embodiment LCD AOI equipment provided.As shown in Figure 5,
The LCD AOI equipment that the utility model embodiment provides includes signal generator 6, jig plate 7, Signals Transfer Board 8 and above-mentioned LCD
Probe detection device, wherein：Signal generator 6 is connected with the probe card 2 in LCD probe detection devices, probe card 2 and contact plate
3 connections, contact plate 3 are connected with Signals Transfer Board 8.Contact plate 3 and Signals Transfer Board 8 are arranged on jig plate 7.On jig plate 7
It is additionally provided with the LCD screen 011 being connected with Signals Transfer Board.
Specifically, signal generator 6 is connected by multicore signal wire with the second input terminal 22 in probe card 2；Contact plate 3
In metal-oxide-semiconductor 31 drain electrode connection Signals Transfer Board 8 output interface.Signal generator 6, probe card 2 and LED Unit 1
Fixed detection website is may be contained within, contact plate 3, Signals Transfer Board 8 and LCD screen 011 are then moved up with jig plate 7 in wire body
It is dynamic.
The course of work of LCD AOI equipment can be found in Fig. 6, the work for the LCD AOI equipment that the utility model embodiment provides
Make flow chart.When detection process starts, the power supply of signal generator 6 is first shut off, LED Unit 1 is connected with probe card 2.So
After probe card 2 is allowed to be crimped with contact plate 3, for LED Unit 1 access power supply 4.Then on operator's viewing lamp plate 1
Whether indicator light 11 is lit.If there is not luminous indicator light 11, then the 11 corresponding signal of indicator light that emphasis investigation does not work
Probe 25 or the posture for adjusting probe card 2.Wherein, check signal probe 25, be to see it either with or without damage；Adjust probe
The posture of plate 2 is that the contact condition of probe card 2 and contact plate 3 is adjusted.When whole indicator lights 11 all shines, then prove
Probe card 2 presses well with contact plate 3.The connection of LED Unit 1 and probe card 2 can be disconnected at this time, and signal generator 6 passes through
Multicore signal wire is linked into the second input terminal 22.The power supply of opening signal generator 6 drives LCD screen 011, checks whether a little
Bright LCD screen 011, completes entire debugging process.
Detection process is lighted in LCD screen 011, above-mentioned jig plate 7 is moved with wire body, completes one piece of LCD screen
Light detection after, while another jig plate in wire body reaches detection website, repeats above-mentioned detection process.Due to jig plate
All closely, and installation site is in the unworkable place of human hand for structure on 7, so the utility model embodiment provides
LCD AOI equipment in, metal-oxide-semiconductor 31 is designed on contact plate 3, there is no need to when testing probe change metal-oxide-semiconductor 31 with connecing
The position of touch panel 3.Light debugging and the daily maintenance of probe before the application is run for LCD screen provide very well with malfunction elimination
Facility.
Since embodiment of above is to quote to combine on other modes to illustrate, have between different embodiments
There is an identical part, just to refer each other for part identical, similar between each embodiment in this specification.Herein no longer in detail
It illustrates.
It should be noted that in the present specification, the relational terms of such as " first " and " second " or the like are used merely to
It distinguishes one entity or operation from another entity or operation, and not necessarily requires or imply these entities or operation
Between there are any this actual relations or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Cover non-exclusive inclusion, so that circuit structure, article or equipment including a series of elements not only include those
Element, but also including other elements that are not explicitly listed or further include as this circuit structure, article or equipment
Intrinsic element.In the absence of more restrictions, there is the element that sentence "including a ..." limits, it is not excluded that
Also there are other identical elements in circuit structure, article or equipment including the element.
Those skilled in the art will readily occur to the application after considering specification and putting into practice the disclosure of utility model here
Other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these changes
Type, purposes or adaptive change follow the general principle of the application and undocumented in the art including the application
Common knowledge or conventional techniques.Description and embodiments are considered only as illustratively, the true scope and spirit of the application
It is pointed out by the content of claim.
Above-described the application embodiment does not form the restriction to the application protection domain.
Claims (10)
1. a kind of LCD probe detection devices, which is characterized in that described device includes：Probe card (2) and contact plate (3)；
The contact plate (3) is equipped with the pad being connected and metal-oxide-semiconductor (31)；
The probe card (2) is equipped with probe, and the probe is crimped onto on the pad；
Described device further includes：
The LED Unit (1) for being provided with indicator light (11) being electrically connected with the probe card (2)；And
The power supply (4) being electrically connected with the LED Unit (1).
2. the apparatus according to claim 1, which is characterized in that the probe includes power probe (23), grounded probe
(24) and signal probe (25)；The power probe (23) and the grounded probe (24) are respectively connected to the LED Unit
(1)。
3. the apparatus of claim 2, which is characterized in that be provided with power interface (12) on the LED Unit (1)
With ground interface (13), the power interface (12) connects the power supply (4) and the power probe (23) respectively；The ground connection
Interface (13) is connected with the grounded probe (24).
4. the apparatus of claim 2, which is characterized in that the grid of the metal-oxide-semiconductor (31) connects the power probe
(23), the source electrode of the metal-oxide-semiconductor (31) connects the grounded probe (24), and the drain electrode of the metal-oxide-semiconductor (31) connects the signal
Probe (25).
5. the apparatus according to claim 1, which is characterized in that the probe card (2) is equipped with first input end (21), described
First input end (21) is electrically connected with the LED Unit (1).
6. device according to claim 5, which is characterized in that the indicator light (11) passes through described in the access of multicore signal wire
First input end (21).
7. the apparatus according to claim 1, which is characterized in that described device further includes：Pull-up resistor (5), the power supply
(4) LED Unit (1) is linked by the pull-up resistor (5).
8. according to the device described in any one in claim 1-7, which is characterized in that the indicator light (11) is light-emitting diodes
Pipe.
9. a kind of LCD AOI equipment, which is characterized in that the equipment includes：Signal generator (6), jig plate (7), signal turn
LCD probe detection devices in fishplate bar (8) and claim 1-8 described in any one, wherein：
The signal generator (6) is connected with the probe card (2) in the LCD probe detection devices；
The Signals Transfer Board (8) is connected with the contact plate (3) in the LCD probe detection devices；
The contact plate (3) and the Signals Transfer Board (8) are arranged on the jig plate (7).
10. LCD AOI equipment according to claim 9, which is characterized in that the signal generator (6) passes through multicore signal
Line is connected with the second input terminal (22) in the probe card (2)；The drain electrode connection of metal-oxide-semiconductor (31) in the contact plate (3)
The Signals Transfer Board (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672522.1U CN207457645U (en) | 2017-12-05 | 2017-12-05 | A kind of LCD probe detection devices and LCD AOI equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672522.1U CN207457645U (en) | 2017-12-05 | 2017-12-05 | A kind of LCD probe detection devices and LCD AOI equipment |
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| Publication Number | Publication Date |
|---|---|
| CN207457645U true CN207457645U (en) | 2018-06-05 |
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ID=62276515
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| CN201721672522.1U Active CN207457645U (en) | 2017-12-05 | 2017-12-05 | A kind of LCD probe detection devices and LCD AOI equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111081179A (en) * | 2019-12-18 | 2020-04-28 | 深圳市华星光电半导体显示技术有限公司 | Probe detection device and panel lighting test device |
| CN111312134A (en) * | 2020-04-02 | 2020-06-19 | 深圳市华星光电半导体显示技术有限公司 | Detection equipment for display panel |
| CN112394208A (en) * | 2020-12-23 | 2021-02-23 | 嘉兴斯达半导体股份有限公司 | Pin-missing test jig for power module |
-
2017
- 2017-12-05 CN CN201721672522.1U patent/CN207457645U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111081179A (en) * | 2019-12-18 | 2020-04-28 | 深圳市华星光电半导体显示技术有限公司 | Probe detection device and panel lighting test device |
| CN111081179B (en) * | 2019-12-18 | 2021-05-07 | 深圳市华星光电半导体显示技术有限公司 | Probe detection device and panel lighting test device |
| CN111312134A (en) * | 2020-04-02 | 2020-06-19 | 深圳市华星光电半导体显示技术有限公司 | Detection equipment for display panel |
| CN111312134B (en) * | 2020-04-02 | 2024-03-08 | 深圳市华星光电半导体显示技术有限公司 | Display panel's check out test set |
| CN112394208A (en) * | 2020-12-23 | 2021-02-23 | 嘉兴斯达半导体股份有限公司 | Pin-missing test jig for power module |
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Address after: 100094 701, 7 floor, 7 building, 13 Cui Hunan Ring Road, Haidian District, Beijing. Patentee after: Lingyunguang Technology Co.,Ltd. Address before: 100094 701, 7 floor, 7 building, 13 Cui Hunan Ring Road, Haidian District, Beijing. Patentee before: Beijing lingyunguang Technology Group Co.,Ltd. Address after: 100094 701, 7 floor, 7 building, 13 Cui Hunan Ring Road, Haidian District, Beijing. Patentee after: Beijing lingyunguang Technology Group Co.,Ltd. Address before: 100094 701, 7 floor, 7 building, 13 Cui Hunan Ring Road, Haidian District, Beijing. Patentee before: LUSTER LIGHTTECH GROUP Co.,Ltd. |
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