CN209198807U - A kind of liquid crystal display panel finger mark Mura detection device - Google Patents
A kind of liquid crystal display panel finger mark Mura detection device Download PDFInfo
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- CN209198807U CN209198807U CN201821772955.9U CN201821772955U CN209198807U CN 209198807 U CN209198807 U CN 209198807U CN 201821772955 U CN201821772955 U CN 201821772955U CN 209198807 U CN209198807 U CN 209198807U
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- pressing
- mura
- portal frame
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- finger mark
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Abstract
The utility model relates to a kind of liquid crystal display panel finger mark Mura detection devices, comprising: mobile mechanism, driving mechanism, pressing mechanism, finger mark Mura mechanism, photographic unit, backlight lamp box and controlling terminal；Wherein, mobile mechanism connects driving mechanism, and mobile mechanism includes: mobile platform, portal frame and sliding rail；Driving mechanism is arranged in mobile platform side；Pressing mechanism is installed on the gantry；Finger mark Mura mechanism includes: multiple intermediate bars and multiple pressing rollers, and each intermediate bar connects pressing mechanism by torsionspring；The top of portal frame is arranged in photographic unit, and backlight lamp box is arranged on a mobile platform；Controlling terminal is separately connected mobile mechanism, driving mechanism, pressing mechanism, finger mark Mura mechanism, photographic unit and backlight lamp box.The present apparatus utilizes finger mark Mura mechanism, and simulation personnel brush away manually, it can be achieved that finger mark Mura is abnormal detects in advance, avoids the wasting of resources, improves Detection accuracy and efficiency.
Description
Technical field
The utility model belongs to liquid crystal display panel detection technique field, and in particular to a kind of liquid crystal display panel finger mark Mura inspection
Survey device.
Background technique
Many advantages, such as liquid crystal display panel is frivolous, energy saving, radiationless because of its, has been widely used in high-resolution number
In the electronic equipments such as word TV, desktop computer, laptop, mobile phone.
Under normal conditions, liquid crystal display panel in the fabrication process, complete alignment film coating after, if there is foreign particles
Fall between glass substrate or the control of process be bad, and or handling process in generate collision etc. factors influence, will cause orientation
The film surface of film collides, and generates orientation unevenness, i.e. finger mark Mura (unevenness) phenomenon.Finger mark Mura must be transmitted to until panel
Detection station is likely to be detected, and abnormal risk is larger and notes abnormalities later.
In addition, existing detection method, mostly uses lighting machine, the personnel inspection before being replaced by CDD automatic shooting inspection.
The deficiency of this detection method is can there is the risk of missing inspection for finger mark Mura, and Detection accuracy is low, detection efficiency not
It is high.
Utility model content
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of liquid crystal display panel finger mark Mura
Detection device.The technical problems to be solved in the utility model is achieved through the following technical solutions:
A kind of liquid crystal display panel finger mark Mura detection device, comprising:
Mobile mechanism, driving mechanism, pressing mechanism, finger mark Mura mechanism, photographic unit, backlight lamp box and controlling terminal；
Wherein, the mobile mechanism connects the driving mechanism, and the mobile mechanism includes:
Mobile platform, portal frame and sliding rail；The sliding rail is symmetricly set on the two sides of the mobile platform and perpendicular to institute
State portal frame；The portal frame is across the mobile platform and both ends are movably disposed at respectively on the sliding rail；
The driving mechanism is arranged in the mobile platform side；
The pressing mechanism is mounted on the portal frame；
Finger mark Mura mechanism includes: multiple intermediate bars and multiple pressing rollers, and each intermediate bar passes through torsion
Spring connects the pressing mechanism；
The top of the portal frame is arranged in the photographic unit；
The backlight lamp box is arranged on the mobile platform；
The controlling terminal is separately connected the mobile mechanism, the driving mechanism, the pressing mechanism, the finger mark
Mura mechanism, the photographic unit and the backlight lamp box.
In one embodiment of the utility model, described device further include: mechanical arm, the mechanical arm connect the drive
Motivation structure and the controlling terminal.
In one embodiment of the utility model, the mobile mechanism further include:
Two lifting cylinders, the lifting cylinder are separately mounted to the both ends of the portal frame, and can be along described
Sliding rail is mobile.
In one embodiment of the utility model, the driving mechanism is air motor.
In one embodiment of the utility model, the pressing mechanism includes:
Along the equally distributed multiple press units of the crossbeam of the portal frame, each press unit includes by air cylinder, presses
Pressure head and the connection pressing lever for pressing air cylinder and the press head；
The pressing lever connects the intermediate bar by torsionspring；
The pressing roller is fixed on the top of the intermediate bar.
In one embodiment of the utility model, the number of the press unit is 4-48, is symmetricly set on two-by-two
The two sides of the crossbeam.
In one embodiment of the utility model, the material of the press head and the pressing roller is polyurethane PU
Elastic material.
In one embodiment of the utility model, the photographic unit include along the portal frame length direction it is parallel
The multiple CCD cameras being arranged.
In one embodiment of the utility model, the controlling terminal is PC.
The utility model has the beneficial effects that
1, the utility model proposes device acted on simultaneously using finger mark Mura mechanism with the press head in pressing mechanism,
When carrying out pressing detection, pressing roller is worked at the same time, the effect that analog is brushed away manually at personnel, and it is abnormal to realize finger mark Mura
It detects in advance, it is early to find, it is early to handle, the wasting of resources is avoided, Detection accuracy and detection efficiency are improved.
2, the utility model proposes device in pressing mechanism compared to Manual press, can guarantee the uniform of pressing force,
It prevents from damaging product since pressing force is uneven.
3, the utility model proposes device utilize multiple press heads, pressing detection can be carried out to entire simultaneously, and shoot
Mechanism takes pictures simultaneously to all pressing areas, improves detection efficiency.
The utility model is described in further details below with reference to accompanying drawings and embodiments.
Detailed description of the invention
Fig. 1 is a kind of perspective view of liquid crystal display panel finger mark Mura detection device provided by the embodiment of the utility model；
Fig. 2 is a kind of course of work signal of liquid crystal display panel finger mark Mura detection device provided by the embodiment of the utility model
Figure；
Fig. 3 is a kind of solid for liquid crystal display panel finger mark Mura detection device that another embodiment of the utility model provides
Figure；
Fig. 4 is a kind of the worked of liquid crystal display panel finger mark Mura detection device that another embodiment of the utility model provides
Journey schematic diagram.
Description of symbols:
1- mobile mechanism；11- mobile platform；12- portal frame；13- sliding rail；14- lifting cylinder；2- driving mechanism；3- is pressed
Press mechanism；31- presses air cylinder；32- press head；33- pressing lever；4- finger mark Mura mechanism；41- intermediate bar；42- pressing roller；
5- photographic unit；6- backlight lamp box；7- controlling terminal；8- rack；9- liquid crystal display panel；10- power supply mechanism.
Specific embodiment
Reach the technical means and efficacy that predetermined purpose is taken for the utility model is further described, below in conjunction with attached drawing
And embodiment, to specific embodiment of the present utility model, structure feature and its effect, detailed description are as follows.
Embodiment one
Referring to Figures 1 and 2, Fig. 1 is a kind of liquid crystal display panel finger mark Mura detection device provided by the embodiment of the utility model
Structural schematic diagram, Fig. 2 is a kind of the worked of liquid crystal display panel finger mark Mura detection device provided by the embodiment of the utility model
Journey schematic diagram.
The utility model embodiment provides a kind of liquid crystal display panel finger mark Mura detection device, comprising:
Mobile mechanism 1, driving mechanism 2, pressing mechanism 3, finger mark Mura mechanism 4, photographic unit 5, backlight lamp box 6 and control
Terminal 7；
Wherein, mobile mechanism 1 connects driving mechanism 2, and mobile mechanism 1 includes:
Mobile platform 11, portal frame 12 and sliding rail 13, sliding rail 13 be symmetricly set on the two sides of mobile platform 11 and perpendicular to
Portal frame 12, portal frame 12 is across mobile platform 11 and both ends are movably disposed at respectively on sliding rail 13；
Driving mechanism 2 is arranged in 11 side of mobile platform；
Pressing mechanism 3 is mounted on portal frame 12；
Finger mark Mura mechanism 4 includes: multiple intermediate bars 41 and multiple pressing rollers 42, and each intermediate bar 41 passes through torsion bullet
Spring connects pressing mechanism 3；
The top of portal frame 12 is arranged in photographic unit 5；
Backlight lamp box 6 is arranged on mobile platform 11；
Controlling terminal 7 is separately connected mobile mechanism 1, driving mechanism 2, pressing mechanism 3, finger mark Mura mechanism 4, photographic unit
5 and backlight lamp box 6.
Mobile mechanism 1, driving mechanism 2, pressing mechanism 3, finger mark Mura mechanism 4, photographic unit 5, backlight lamp box 6 and control
Terminal 7 processed is arranged in rack 8, and mobile platform 11 can translate out rack 8 under the action of driving mechanism 2, is put with facilitating
Set liquid crystal display panel 9 to be detected.Pressing mechanism 3 is mounted on portal frame 12, and portal frame 12 can be under the action of driving mechanism 2
Sliding rail 13 along both ends moves, to adjust the position of pressing mechanism 3 when detecting.Finger mark Mura mechanism 4 is connected by torsionspring
Pressing mechanism 3 is connect, for detecting finger mark Mura.The top of portal frame 12, also, the water of photographic unit 5 is arranged in photographic unit 5
Gentle upright position is adjustable, can obtain the bat of any pressing position on liquid crystal display panel 9 during pressing detection
Take the photograph image.Backlight lamp box 5 is arranged on mobile platform 11, and liquid crystal display panel to be measured is disposed horizontally on backlight lamp box 5.Backlight
Case 5 is used to provide backlight illumination to liquid crystal display panel in pressing detection.
Particularly, in the utility model specific embodiment further include: mechanical arm (not shown), mechanical arm connection driving
Mechanism 2 and controlling terminal 7, the control instruction for being issued according to controlling terminal 7 adjust the position of liquid crystal display panel 9.
Particularly, in the utility model specific embodiment, mobile mechanism 1 further include:
Two lifting cylinders 14 are separately mounted to the both ends of portal frame 12, and can move along sliding rail 13.Promote gas
Cylinder 14 is used to before portal frame 12 is mobile be promoted the height of portal frame 12, to prevent portal frame 12 from encountering in moving process
Place the liquid crystal display panel 9 on backlight case 5 thereunder.
Particularly, driving mechanism 2 is air motor in the utility model specific embodiment, its main feature is that small in size and can produce
Raw higher-wattage, high-adaptability, temperature rise is smaller, and revolving speed can change with load, and it is convenient to commutate；It is easy to operate flexible, not by the external world
Environment influences, and safety coefficient is high.
Particularly, in the utility model specific embodiment, pressing mechanism 3 includes:
Along the equally distributed multiple press units of the length direction of portal frame 12, each press unit includes pressing air cylinder
31, the pressing lever 33 of air cylinder 31 and press head 32 is pressed in press head 32 and connection；
Pressing lever 33 connects intermediate bar 41 by torsionspring；
Pressing roller 42 is fixed on the top of intermediate bar 41.
Be fixed on by air cylinder 31 on the side of portal frame 12, in use, driving mechanism 2 control it is multiple same by air cylinder 31
When it is flexible so that all press heads 32 press on the surface of liquid crystal display panel 9 simultaneously, realize that multiple spot detects simultaneously；Meanwhile
When driving pressing lever 33 to move by air cylinder 31, moves, press together with the intermediate bar 41 that pressing lever 33 is connect by torsionspring
Pressing roller 42 is brushed away under the drive of intermediate bar 41 on the surface of liquid crystal display panel 9, simulate the pressing operation of personnel, it can be achieved that
The detection in advance of finger mark Mura.
Particularly, in the utility model specific embodiment, the number of press unit is 24, is symmetricly set on crossbeam two-by-two
Two sides, corresponding intermediate bar 41 and pressing roller 42 are identical as press unit number.In other embodiments, according to practical feelings
Condition, the number of press unit can be other quantity.
Particularly, in the utility model specific embodiment, the material of press head 32 and pressing roller 42 may each be poly- ammonia
Ester PU elastic material, the material is with performance adjustable extent is wide, adaptable, wear-resisting property is good, mechanical strength is big, adhesive property
Good, the advantages that elasticity is good, excellent restoration, using the material can be avoided pressed, draw the operation such as draw when to liquid crystal
Panel 9 causes to damage.
Alternatively, the material of press head 32 and pressing roller 42 is also possible to its that will not cause to scratch to liquid crystal display panel
His material.
Particularly, in the utility model specific embodiment, photographic unit 5 includes setting in parallel along the length direction of portal frame 12
The multiple CCD cameras set.
Particularly, in the utility model specific embodiment, photographic unit 5 includes setting in parallel along the length direction of portal frame 12
3 CCD cameras set, CCD camera can adjust shooting direction when in use, to obtain the detection image of entire panel.
Particularly, in the utility model specific embodiment, controlling terminal 7 be separately connected mobile mechanism 1, driving mechanism 2, by
Press mechanism 3, finger mark Mura mechanism 4, photographic unit 5 and backlight lamp box 6.Controlling terminal 7 is used to control the fortune of each operating mechanism
Capable and picture analyzing and processing to the shooting of photographic unit 5.
Particularly, controlling terminal 7 is PC in the utility model specific embodiment.
Particularly, in the utility model specific embodiment, further includes: power supply mechanism 10, it is right for lighting display panel 9
Display panel 9 is powered, it is made display picture occur for detection.
The present embodiment propose liquid crystal display panel finger mark Mura detection device use process is as follows:
The liquid crystal display panel finger mark Mura detection device is first turned on, mobile platform 11 is moved to conveniently together with backlight lamp box 6
At the position for placing liquid crystal display panel 9, liquid crystal display panel 9 is placed on the appropriate position on backlight lamp box 6 by mechanical arm, then, is moved
Moving platform 11 returns to home position, and backlight lamp box 6 is opened, and power supply mechanism 10 lights liquid crystal display panel 9, goes out on liquid crystal display panel 9
Existing picture.Then, it after CCD camera detects the specific picture on liquid crystal display panel 9, generates output signal and feeds back to PC, PC
Lifting cylinder 14 is controlled according to the data-signal to extend, and by the elevated height of portal frame 12, then controls driving mechanism 2 for gantry
Frame 12 is moved to designated position and stops.After reaching designated position, PC control driving mechanism 2 makes to be arranged on portal frame 12
All press unit work, i.e., the pressing lever 33 of all press units are extended from by air cylinder 31, and pressing lever 33 drives finger mark
Mura mechanism 4 works at the same time, i.e., pressing lever 33 drives intermediate bar 41 to move, so that press head 32 and pressing roller 42 are and liquid crystal
Panel 9 contacts, meanwhile, CCD camera alignment pressing area is taken pictures, and by the picture real-time Transmission taken to PC, then, dragon
Door frame 12 is moved to another region of liquid crystal display panel, carries out pressing detection again according to identical process；It is detected to liquid crystal display panel 9
After, PC is handled and is analyzed to all photos for the liquid crystal display panel 9 being collected into, to whether obtain the liquid crystal display panel 9
It is defective；Then, mobile platform 11 removes, and liquid crystal display panel 9 is produced the detection device by mechanical arm, and new liquid crystal display panel is put
It sets on backlight lamp box 6, pressing detection is then carried out to next liquid crystal display panel with same process, is circuited sequentially.
Embodiment two
As shown in Figure 3 and Figure 4, on the basis of the above embodiments, another embodiment provides for one kind for the utility model
Liquid crystal display panel finger mark Mura detection device, comprising:
Mobile mechanism 1, driving mechanism 2, pressing mechanism 3, photographic unit 5, backlight lamp box 6 and controlling terminal 7；
Wherein, mobile mechanism 1 connects driving mechanism 2, and mobile mechanism 1 includes:
Mobile platform 11, portal frame 12 and sliding rail 13, sliding rail 13 be symmetricly set on the two sides of mobile platform 11 and perpendicular to
Portal frame 12, portal frame 12 is across mobile platform 11 and both ends are movably disposed at respectively on sliding rail 13；
Driving mechanism 2 is arranged in 11 side of mobile platform；
Pressing mechanism 3 is mounted on portal frame 12, comprising: along the equally distributed multiple pressings of the length direction of portal frame 12
Unit, each press unit include by air cylinder 31, pressing roller 32 and connection by air cylinder 31 and pressing roller 32 by
Compression bar 33；
The top of portal frame 12 is arranged in photographic unit 5；
Backlight lamp box 6 is arranged on mobile platform 11；
Controlling terminal 7 is separately connected mobile mechanism 1, driving mechanism 2, pressing mechanism 3, photographic unit 5 and backlight lamp box
6。
Mobile mechanism 1, driving mechanism 2, pressing mechanism 3, photographic unit 5, backlight lamp box 6 and controlling terminal 7 are respectively provided with
In rack 8, mobile platform 11 can translate out rack 8 under the action of driving mechanism 2, place liquid crystal to be detected to facilitate
Panel 9.Pressing mechanism 3 is mounted on portal frame 12, and portal frame 12 can be under the action of driving mechanism 2 along the sliding rail 13 at both ends
It is mobile, to adjust the position of pressing mechanism 3 when detecting.The top of portal frame 12, also, camera is arranged in photographic unit 5
The horizontal and vertical position of structure 5 is adjustable, can obtain any pressing position on liquid crystal display panel 9 during pressing detection
The shooting image set.Backlight lamp box 6 is arranged on mobile platform 11, and liquid crystal display panel 9 is disposed horizontally on backlight lamp box 6.Back
Light lamp box 6 is used to provide backlight illumination to liquid crystal display panel 9 in pressing detection.
Particularly, in the utility model specific embodiment further include: mechanical arm (not shown), mechanical arm connection driving
Mechanism 2 and controlling terminal 7, the control instruction for being issued according to controlling terminal 7 adjust the position of liquid crystal display panel 8.
Be fixed on by air cylinder 31 on the side of portal frame 12, in use, driving mechanism 2 control it is multiple same by air cylinder 31
When it is flexible so that all pressing rollers 32 press on the surface of liquid crystal display panel 8 simultaneously, realize that multiple spot detects simultaneously；Together
When, driving mechanism 2 controls portal frame 12 and moves along sliding rail 13, and drive pressing roller 32 to be brushed away on the surface of liquid crystal display panel 9,
The pressing operation of simulation personnel, it can be achieved that finger mark Mura detection in advance.
Particularly, in the utility model specific embodiment, further includes: power supply mechanism 10, it is right for lighting display panel 9
Display panel 9 is powered, it is made display picture occur for detection.
The present embodiment propose liquid crystal display panel finger mark Mura detection device use process is as follows:
The liquid crystal display panel finger mark Mura detection device is first turned on, mobile platform 11 is moved to conveniently together with backlight lamp box 6
At the position for placing liquid crystal display panel 9, liquid crystal display panel 8 is placed on the appropriate position on backlight lamp box 6 by mechanical arm, then, is moved
Moving platform 11 returns to home position, and backlight lamp box 6 is opened, and power supply mechanism 10 lights liquid crystal display panel 9, goes out on liquid crystal display panel 9
Existing picture.Then, it after CCD camera detects the specific picture on liquid crystal display panel 9, generates output signal and feeds back to PC, PC
Lifting cylinder 14 is controlled according to the data-signal to extend, and by the elevated height of portal frame 12, then controls driving mechanism 2 for gantry
Frame 12 is moved to designated position and stops.After reaching designated position, PC control driving mechanism 2 makes to be arranged on portal frame 12
All press units work at the same time, i.e., the pressing lever 33 of all press units is extended from by air cylinder 31, so that pressing roller
32 contact with liquid crystal display panel 9；Meanwhile driving mechanism 2 controls portal frame 12 and moves along sliding rail 13, drives pressing roller 32 in liquid crystal
The surface of panel 9 is brushed away, simulate the pressing operation of personnel, it can be achieved that finger mark Mura detection in advance；Meanwhile CCD is imaged
Machine alignment pressing area is taken pictures, and by the picture real-time Transmission taken to PC, then, portal frame 12 is moved to liquid crystal display panel 9
Another region, carry out pressing detection again according to identical process；After detecting to liquid crystal display panel 9, PC is to being collected into
All photos of liquid crystal display panel 9 are handled and are analyzed, to show whether the liquid crystal display panel 9 is defective；Then, mobile platform
11 remove, and liquid crystal display panel 9 is produced the detection device by mechanical arm, and new liquid crystal display panel is placed on backlight lamp box 6, then
Pressing detection is carried out to next liquid crystal display panel with same process, is circuited sequentially.
The utility model proposes device the uniform of pressing force can be guaranteed using pressing mechanism 3, prevent due to pressing force
It is uneven and product is damaged, while when carrying out pressing detection, portal frame drive pressing roller moves on liquid crystal display panel,
The effect that simulation personnel brush away manually is, it can be achieved that finger mark Mura is detected in advance extremely, and early to find, early processing avoids resource wave
Take, improves Detection accuracy and detection efficiency.In addition, the automatic pressing detection device of the liquid crystal display panel of the utility model is provided with
Multiple press heads, and multiple press heads can carry out pressing detection simultaneously, meanwhile, photographic unit claps all pressing areas simultaneously
According to improving detection efficiency.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (9)
1. a kind of liquid crystal display panel finger mark Mura detection device characterized by comprising
Mobile mechanism (1), driving mechanism (2), pressing mechanism (3), finger mark Mura mechanism (4), photographic unit (5), backlight lamp box
(6) and controlling terminal (7)；
Wherein, the mobile mechanism (1) connects the driving mechanism (2), and the mobile mechanism (1) includes:
Mobile platform (11), portal frame (12) and sliding rail (13), the sliding rail (13) are symmetricly set on the mobile platform (11)
Two sides and perpendicular to the portal frame (12), the portal frame (12) across the mobile platform (11) and both ends difference it is removable
It is arranged on the sliding rail (13) dynamicly；
The driving mechanism (2) is arranged in the mobile platform (11) side；
The pressing mechanism (3) is mounted on the portal frame (12)；
Finger mark Mura mechanism (4) connects the pressing mechanism (3) by torsionspring, comprising: multiple intermediate bars (41) and
Multiple pressing rollers (42), each intermediate bar (41) connect the pressing mechanism (3) by torsionspring；
Top of photographic unit (5) setting in the portal frame (12)；
The backlight lamp box (6) is arranged on the mobile platform (11)；
The controlling terminal (7) is separately connected the mobile mechanism (1), the driving mechanism (2), the pressing mechanism (3), institute
State finger mark Mura mechanism (4), the photographic unit (5) and the backlight lamp box (6).
2. the apparatus according to claim 1, which is characterized in that further include: mechanical arm, the mechanical arm connect the driving
Mechanism (2) and the controlling terminal (7).
3. the apparatus according to claim 1, which is characterized in that the mobile mechanism (1) further include:
Two lifting cylinders (14), the lifting cylinder (14) are separately mounted to the both ends of the portal frame (12), and can
It is mobile along the sliding rail (13).
4. the apparatus according to claim 1, which is characterized in that the driving mechanism (2) is air motor.
5. the apparatus according to claim 1, which is characterized in that the pressing mechanism (3) includes:
Along the equally distributed multiple press units of the crossbeam of the portal frame (12), each press unit includes pressing air cylinder
(31), press head (32) and the connection pressing lever (33) for pressing air cylinder (31) and the press head (32)；
The pressing lever (33) connects the intermediate bar (41) by torsionspring；
The pressing roller (42) is fixed on the top of the intermediate bar (41).
6. device according to claim 5, which is characterized in that the number of the press unit is 4-48, two-by-two symmetrically
The two sides of the crossbeam are set.
7. device according to claim 5, which is characterized in that the material of the press head (32) and the pressing roller (42)
Material is polyurethane PU elastic material.
8. the apparatus according to claim 1, which is characterized in that the photographic unit (5) includes along the portal frame (12)
Length direction multiple CCD cameras disposed in parallel.
9. the apparatus according to claim 1, which is characterized in that the controlling terminal (7) is PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821772955.9U CN209198807U (en) | 2018-10-30 | 2018-10-30 | A kind of liquid crystal display panel finger mark Mura detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821772955.9U CN209198807U (en) | 2018-10-30 | 2018-10-30 | A kind of liquid crystal display panel finger mark Mura detection device |
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| Publication Number | Publication Date |
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| CN209198807U true CN209198807U (en) | 2019-08-02 |
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ID=67409725
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| CN201821772955.9U Active CN209198807U (en) | 2018-10-30 | 2018-10-30 | A kind of liquid crystal display panel finger mark Mura detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112764266A (en) * | 2020-12-31 | 2021-05-07 | 惠州视维新技术有限公司 | Backlight module, display device and detection method of display device |
-
2018
- 2018-10-30 CN CN201821772955.9U patent/CN209198807U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112764266A (en) * | 2020-12-31 | 2021-05-07 | 惠州视维新技术有限公司 | Backlight module, display device and detection method of display device |
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