CN209215786U - A kind of automatic optical detection device in the step electrode region of liquid crystal display - Google Patents
A kind of automatic optical detection device in the step electrode region of liquid crystal display Download PDFInfo
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- CN209215786U CN209215786U CN201920066503.7U CN201920066503U CN209215786U CN 209215786 U CN209215786 U CN 209215786U CN 201920066503 U CN201920066503 U CN 201920066503U CN 209215786 U CN209215786 U CN 209215786U
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Abstract
The utility model discloses a kind of automatic optical detection devices in the step electrode region of liquid crystal display, it is related to automatic optics inspection field, including first camera, second camera and laser displacement sensor, first camera and second camera are moved synchronously along the acquisition path that horizontal linear is arranged, there is a detection zone between first camera and second camera, first camera is from top to bottom, second camera carries out Image Acquisition to the detection plane in detection zone from bottom to top, first camera is for acquiring path orientation, second camera is that line sweeps camera, sequential image acquisition is carried out to be spliced into detection picture to detection plane；Laser displacement sensor makes second camera for feedback control and detects the offset of the shooting distance of plane no more than given threshold.The utility model simplifies the product structure of the automatic optical detection device in the step electrode region of liquid crystal display and control requires, and substantially increases the detection efficiency in the step electrode region of liquid crystal display.
Description
Technical field
The utility model relates to the automatic of automatic optics inspection field more particularly to a kind of step electrode region of liquid crystal display
Optical detection apparatus.
Background technique
Nowadays the display resolution of liquid crystal display is higher and higher, the resolution ratio of the middle-size and small-size liquid crystal display such as mobile phone, plate also from
1080P, to 2K, 4K transition.Liquid crystal display include can display area and can not display area, can not display area include frame and drive
Moving-wire road etc., liquid crystal display can display area account for entire liquid crystal display area ratio be flat-profile view accounting.Liquid crystal display is in liquid crystal display point
While resolution is higher and higher, for bigger effective area accounting, the driver circuit of liquid crystal display is but more and more intensive, liquid crystal display
Structure feature as shown in Figure 1, liquid crystal display 500 include can display area 501 and periphery step electrode region, peripheral step
The route of electrode zone is intensive, and minimum feature reaches 10 microns, and minimum line spacing has reached 10 microns, accurately to detect route
Short circuit, open circuit the problems such as, need the focal length of camera being transferred to very little, to obtain high-resolution image under the narrow visual field
Automatic identification is carried out, but the electrical connection of the periphery of display screen is compared with display area, only accounts for the strip region of very little, when detecting
It needs to position step electrode region, with optimizing detection path, avoids invalid detection, in single camera, be just faced with
Micro- focal length when needing a relatively remote focal length wide-field positioning picture shooting when to the first positioning in step electrode region and detecting
Under high-precision shooting contradiction, by the length focus adjustment of camera itself, it is low that there are detection efficiencies, equipment focus control
Be easy be not achieved because of abrasion expected from focusing accuracy, influence the shooting and identification of high precision image.
As shown in Figure 1, the step electrode region of liquid crystal display 500 is strip, including lateral detection zone 502 and longitudinal detection
Area 503 can simplify camera picture if the visual field of camera can cover the width of lateral detection zone 502 or longitudinal detection zone 503
Otherwise the stroke of acquisition needs to carry out detection picture collection using conventional two-dimensional detection path.But it is clapped to meet high-precision
It takes the photograph, the visual field very little of camera, the length of usual single picture pickup area and wide only several millimeters are not able to satisfy covering step electrode
The width in region, there are contradictions for the two.
Utility model content
The purpose of this utility model is to provide a kind of automatic optical detection device in the step electrode region of liquid crystal display, energy
Liquid crystal display step electricity is improved in the characteristics of enough quickly being positioned, and being directed to the step electrode region of liquid crystal display, optimizing detection path
The detection efficiency in polar region domain.
To achieve the above object, the solution of the utility model is:
A kind of automatic optical detection device in the step electrode region of liquid crystal display, including first camera component, second camera
Component, laser ranging component and the first sliding equipment,
First sliding equipment is horizontally disposed,
Movement is mounted on first sliding equipment first camera component in the horizontal direction, the first camera group
Part includes first camera, and the camera lens of the first camera is down-set；
Movement is mounted on the first camera component second camera component along the vertical direction, the second camera group
Part includes second camera, and the camera lens of the second camera is set up, and the second camera is that line sweeps camera；
The camera lens of the first camera and the camera lens of the second camera are oppositely arranged, the camera lens of the first camera and institute
It states there are a detection plane between the camera lens of second camera, the detection plane is for placing object to be checked, the detection plane
The distance between camera lens of the first camera is greater than detection the distance between the plane and the camera lens of the second camera；
Movement is mounted on the second camera component laser ranging component along the vertical direction, the laser ranging group
Part includes laser displacement sensor, and the laser displacement sensor is for detecting the laser ranging component and the detection plane
Distance offset.
Further, first sliding equipment is linear motor；First sliding equipment includes first base and phase
To the first sliding block of first base sliding, the first camera component is fixedly connected with first sliding block.
It further, further include the second sliding equipment and third sliding equipment, second sliding equipment and the third
Sliding equipment is lead screw transmission mechanism.
Further, second sliding equipment is vertically arranged, including second base and the second sliding block, second bottom
Seat is fixed on the first camera component, and second sliding block is fixedly connected with the second camera component.
Further, the first camera component further includes first support；The first support include lower frame body, riser,
First sliding block level of crossbeam and bottom plate, the bottom plate and first sliding equipment is fixedly connected；The lower frame body is fixed on
On the bottom plate；The riser is fixed on the side of lower frame body；One end of the crossbeam is fixed on the top of the riser；It is described
First camera is fixed on the other end of the crossbeam；The other side of lower frame body vertical plane and second sliding equipment
Two pedestals are fixedly connected.
Further, the second camera component further includes second support, and the second support is a vertical plate, described
Second support is fixedly connected with second sliding block.
Further, the third sliding equipment is vertically arranged, including third pedestal and third sliding block, the third bottom
Seat is fixed on the second camera component, and the third sliding block is fixedly connected with the laser ranging component.
Further, the laser ranging component further includes the third bracket, and the third bracket includes setting in dog-ear
The third bracket riser and third bracket transverse slat set, the laser displacement sensor are fixed on the third bracket transverse slat；Institute
Third sliding block is stated to be fixedly connected with the third bracket riser.
Further, the laser displacement sensor includes photophore and light-receiving device, and the photophore and light-receiving device set up separately
In the two sides of the second camera camera lens.
Compared to the prior art the utility model, has the following characteristics that
(1) the quick positioning of the detection starting point in the step electrode region of liquid crystal display is realized by first camera；
(2) second camera is that line sweeps camera, and the step electrode region of liquid crystal display is realized by the scanning mode of a dimension
Quick detection, substantially increase the detection efficiency in the step electrode region of liquid crystal display；
(3) by the Displacement Feedback of laser displacement sensor, second camera and liquid crystal can be accurately kept during the scanning process
The distance of screen guarantees the detection picture collection of fine definition, small distortion, guarantees the realization of automatic optics inspection.
The automatic optical detection device of the utility model simplifies the optical detection apparatus in the step electrode region of liquid crystal display
Product structure and control require, and substantially increase detection efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of liquid crystal display；
Fig. 2 is the structural schematic diagram of the automatic optical detection device in the step electrode region of the liquid crystal display of the utility model；
Fig. 3 is the structural schematic diagram of first sliding equipment of the utility model；
Fig. 4 is the structural schematic diagram of the first camera component of the utility model；
Fig. 5 is the second camera component of the utility model and the structural schematic diagram of laser ranging component；
Fig. 6 is another view of the second camera component of the utility model and the structural schematic diagram of laser ranging component；
Fig. 7 is the structural schematic diagram of the laser ranging component of the utility model；
Fig. 8 is the top view of the automatic optical detection device in the step electrode region of the liquid crystal display of the utility model；
Fig. 9 is the front view of the automatic optical detection device in the step electrode region of the liquid crystal display of the utility model；
Figure 10 is the side view of the automatic optical detection device in the step electrode region of the liquid crystal display of the utility model.
Wherein:
The first sliding equipment of 100-；
101- first base；
The first sliding block of 102-；
141- the first limit sensors of the first sliding equipment；
142- the second limit sensors of the first sliding equipment；
143- the first sliding equipment third limit sensors；
The first sliding equipment of 144- limits barrier sheet；
200- first camera component；
210- first support；
211- lower frame body；
212- riser；
213- crossbeam；
214- bottom plate；
The second sliding equipment of 220-；
221- second base；
The second sliding block of 222-；
230- first camera；
231- first camera camera lens；
241- the first limit sensors of the second sliding equipment；
242- the second limit sensors of the second sliding equipment；
243- the second sliding equipment third limit sensors；
The second sliding equipment of 244- limits barrier sheet；
300- second camera component；
310- second support；
330- second camera；
331- second camera camera lens
400- laser ranging component；
410- third bracket；
411- side plate；
412- transverse slat；
420- third sliding equipment；
421- third pedestal；
422- third sliding block；
430- laser displacement sensor；
441- third the first limit sensors of sliding equipment；
442- third the second limit sensors of sliding equipment；
443- third sliding equipment third limit sensors；
444- third sliding equipment limits barrier sheet；
500- liquid crystal display；
501- can display area；
502- transverse direction detection zone；
The longitudinal direction 503- detection zone；
504- winding displacement area.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses
A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new
The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
The structural schematic diagram of liquid crystal display or liquid crystal module as shown in Figure 1, liquid crystal display 500 includes can 501 He of display area
Step electrode region, step electrode region include lateral detection zone 502, longitudinal detection zone 503 and winding displacement area 504.This reality
Typical case with novel automatic optical detection device is exactly for detecting the lateral detection zone 502 of liquid crystal display 500 and indulging
To detection zone 503.
As seen in figs. 2-10 be a kind of liquid crystal display disclosed by the utility model step electrode region automated optical
The specific embodiment of detection device.
As shown in Fig. 2 the structure of the automatic optical detection device in the step electrode region of the liquid crystal display of the utility model
Schematic diagram, including the first sliding equipment 100, first camera component 200, second camera component 300 and laser ranging component 400.
First sliding equipment 100 is horizontally disposed；First camera component 200 is slidably mounted on the first sliding equipment 100, and sliding along first
The direction of motion level of motivation structure 100 is slided；Second camera component 300 is slidably mounted on first camera component 200, and opposite
First camera component 200 is vertically moving, and laser ranging component 400 is slidably mounted on second camera component 300, and phase
It is vertically moving to second camera component 300.
Shown in Fig. 3 is the structural schematic diagram of first sliding equipment of the utility model, and the first sliding equipment includes first
Sliding equipment pedestal 101 and the first sliding block 102；It further include first sliding equipment the first limit sensors 141, the first sliding equipment
Second limit sensors 142, the first sliding equipment third limit sensors 143 and the first sliding equipment limit barrier sheet 144；Its
In first sliding equipment the first limit sensors 141, first sliding equipment the second limit sensors 142, the first sliding equipment
Three limit sensors 143 are fixed in first base 101, for detecting the mobile negative limit of the first sliding block 102, zero point and positive limit
Position, the first sliding equipment limit barrier sheet 144 are fixed on the first sliding block 102, are triggered each limit sensors for mobile, are issued
First sliding equipment 100 limit detection signal.
First sliding equipment 100 is linear motor, and linear motor is also referred to as linear electric machine, linear motor, line motor or pushes away
Bar motor.Linear motor mainly has following several features: first is that structure is simple, not due to linear motor compared with rotating electric machine
Need rotation motion to be in line the attachment device of movement, so that the structure of system itself is greatly simplified, weight and body
Product greatly declines；Second is that positioning accuracy is high, in the place that needs move along a straight line, direct-drive is may be implemented in linear motor, because
And various position errors brought by intermediate link can be eliminated, therefore positioning accuracy is high, is such as controlled using microcomputer, then it can also be big
The earth improves the positioning accuracy of whole system；Third is that reaction speed is fast, high sensitivity, trackability is good.Linear motor is easily able to
Its mover is supported with magnetic suspension, so that remaining certain air gap between mover and stator without contacting, this is just eliminated
Contact frictional resistance between fixed and moving son, thus greatly increase sensitivity, rapidity and the trackability of system；Fourth is that work
Work is safe and reliable, the service life is long.Non contact transmission power may be implemented in linear motor, and mechanical friction loss is almost nil, so failure
It is few, freedom from repairs, thus it is safe and reliable, the service life is long.
As shown in Fig. 4 the structural schematic diagram of the first camera component of the utility model.First camera component 200 includes
First support 210, the second sliding equipment 220 and first camera 230, wherein first support 210 includes lower frame body 211, riser
212, crossbeam 213 and bottom plate 214, first camera component 200 are fixedly connected by bottom plate 214 with the first sliding block 102, riser 212
It is fixed on bottom plate 214 with lower frame body 211, crossbeam is fixed on the top of riser 212, for fixing first camera 230, the first phase
The camera lens 231 of machine 230 is down-set, shoots downward.Lower frame body 211 provides a vertical side for installing the second sliding equipment
220 pedestal, the second sliding equipment 220 further include the second sliding block 222, and the second sliding block 222 is fixed for second camera component 300
Connection.Because of structure size reason, second the first limit sensors of sliding equipment are further fixed on the vertical side of lower frame body 211
241, second sliding equipment the second limit sensors 242 and the second sliding equipment third limit sensors 343, each limit sensors
It is arranged in parallel with the direction of motion of the second sliding equipment 220, for detecting the mobile negative limit of the second sliding block 222, zero point and just
Limit.
As shown in Figure 5 and Figure 6 is the second camera component of the utility model and the structural schematic diagram of laser ranging component,
The structural schematic diagram of the laser ranging component of the utility model as shown in Fig. 7.Second camera component 300 includes second support
310 and second camera 330.Second support 310 is a vertically arranged plate, second support 310 and the fixed company of the second sliding block 222
Connect, second camera 330 is fixed on vertically in second support 310, second camera camera lens 331 upward, while in second support 310
It is fixed with the second sliding equipment limit barrier sheet 244 and triggers each limit sensors for mobile, issue the second sliding equipment 220 limit
Position detection signal.
Second camera 330 is that line-scan digital camera or line sweep camera, and imaging sensor is by uniline or multirow sensitive chip group
At needing to form relative motion and obtain image by mechanical movement.The suitable second camera 330 of selection, makes its imaging sensor
The maximum value for capturing width and being greater than the width of lateral detection zone 502 and the width of longitudinal detection zone 503.Second camera
330 along the first sliding equipment 100 direction of motion uniform motion, obtain continuous picture and be spliced into detection picture.
Laser ranging component 400 includes third bracket 410, third sliding equipment 420 and laser displacement sensor 430.The
Three sliding equipments 420 are vertically arranged, including third pedestal 421 and third sliding block 422, third sliding equipment 420 pass through third
Pedestal 421 is fixed in second support 310, and third bracket 410 includes vertically arranged side plate 411 and transverse slat 412, side plate 411
It is connected with transverse slat 412 in dog-ear, side plate 411 is fixed on third sliding block 422, and laser displacement sensor 430 is fixed on transverse slat 412
On, laser displacement sensor 430 includes photophore and light-receiving device, when the top of laser displacement sensor 430 is equipped with reverberation,
The laser that photophore issues is reflected into light-receiving device by reverberation, and the deviant of light-receiving device is entered by detecting laser, can be surveyed
Measure offset when reverberation upper and lower displacement.For the camera lens 331 and reverberation (liquid crystal i.e. to be checked for accurately detecting second camera 330
The offset of the distance of screen 500), for example, laser displacement sensor 430 uses ZS-LD15AFT, the measurement essence of ZS-LD15AFT
Degree reaches 0.25um, and photophore and light-receiving device can be divided into the two sides of the camera lens 331 of second camera 330.
Laser displacement sensor 430 can accurately change in position, displacement of non-cpntact measurement testee etc., be mainly used in
The measurement of the geometric senses such as displacement, thickness, vibration, distance, the diameter of detection object.According to measuring principle, laser displacement sensor
Principle is divided into laser triangulation and return laser beam analytic approach, and laser triangulation applies in general to high-precision, short distance
Measurement.
Laser displacement sensor 430 uses triangulation, the principle of triangulation: laser emitter will by camera lens
Red color visible laser directive testee surface, the laser through object reflection is by receiver camera lens, by the internal linear phase of CCD
Machine receives, and according to different distances, CCD linear camera " can see " this luminous point under a different angle.According to this angle
Degree and the distance between known laser and camera, digital signal processor can calculate between sensor and testee
Distance.
Meanwhile light beam is handled in the position of receiving element by analogy and digital circuit, and passes through microprocessor analysis, meter
Corresponding output valve is calculated, and in analog quantity window set by user, in proportion outputting standard data-signal.If using opening
Pass amount output, then be connected in the window of setting, end except window.In addition, analog quantity can be independently arranged with output switch parameter
Detection window.
Take the laser displacement sensor highest linearity of triangulation up to 1um, resolution ratio is even more that can reach 0.1um
Level.
Be further fixed on the third pedestal 421 of third sliding equipment 420 the first limit sensors of third sliding equipment 441,
The second limit sensors of third sliding equipment 442 and third sliding equipment third limit sensors 443, for detecting the second sliding block
222 mobile negative limits, zero point and positive limit.Third sliding equipment limit barrier sheet is fixed on third sliding block 422 simultaneously
444, each limit sensors are triggered for mobile, issue the limit detection signal of third sliding equipment 420.
Second sliding equipment 220 and third sliding equipment moving assembly 420 are lead screw transmission mechanism.Lead screw transmission mechanism is
Linear motion is converted by rotary motion, or is the ideal product of rotary motion by transform linear motion.Lead screw transmission mechanism
It is actuated element most-often used on machine tool and precision machinery, major function is to convert rotational motion to linearly transport
It is dynamic, or torque is converted into axial repeated action power, while having both high-precision, invertibity and efficient feature.Due to having
The frictional resistance of very little, lead screw transmission mechanism are widely used in various industrial equipments and precision instrument, minimum movement precision
Up to 20 microns, the mobile adjustment requirement of second camera 330 and laser displacement sensor 430 can be matched.
As Fig. 8, Fig. 9 and it is shown in Fig. 10 be respectively the utility model liquid crystal display step electrode region automated optical
Top view, front view and the side view of detection device.It is detection zone between first camera camera lens 231 and second camera camera lens 331
Domain, is equipped with a detection plane, and determinand such as liquid crystal display 500 is disposed horizontally in detection by load carrier (such as pallet body)
In plane.The detection plan range first camera camera lens 231 is farther out, and relatively close apart from second camera camera lens 331.First camera
230 positioning for the lateral detection zone 502 of liquid crystal display 500 and the detection starting point of longitudinal detection zone 503 and detection terminal
Identification, first camera 230 use regular industrial camera, and focal length is longer, have the longer depth of field, after being set, do not have to adjust,
The some region of image of liquid crystal display 500 in detection plane can clearly be acquired.Second camera 330 sweeps camera using line,
The lateral detection zone 502 or longitudinal detection zone 503 of liquid crystal display 500 can be scanned, to obtain continuous image and be spliced into
Picture is detected, second camera 330 and first camera 230 keep relatively fixed in the horizontal direction, in the horizontal direction synchronizing moving,
Second camera 330 is microshot, and the depth of field is very short, meanwhile, detection picture is spliced by the sequential image acquisition of second camera
It forms, for the distortion for preventing detection picture, needs to realize spacing Image Acquisition, that is, need to make second camera 330 and detection plane
Between shooting distance keep approximately constant, the deviant of shooting distance is no more than given threshold Δ h, in the present embodiment, threshold
The setting range for being worth Δ h is 30 microns to 100 microns.For the shooting distance of precise measurement second camera 330 and detection plane, match
Laser ranging component 400 has been set, by adjusting the relativeness up and down of laser ranging component 400 and second camera 330, so that the
When focusing completion, the laser that the photophore of laser displacement sensor 430 issues can be detected two cameras 330 by light-receiving device, and locate
In the middle part of light-receiving device.It is at this time that laser displacement sensor 430 is synchronous with the holding of second camera 330, i.e. laser displacement sensor
Both 430 and second camera 330 are relatively fixed, so that the distance of opposite detection plane is synchronous variation, then laser displacement passes
The offset of shooting distance between the displacement that sensor 430 detects i.e. second camera 330 and detection plane.
Liquid crystal display transverse direction can be completed by the scanning mode of a dimension in the automatic optical detection device of the utility model
The acquisition of the detection picture of detection zone 502 or longitudinal detection zone 503, simplifies the optics in the step electrode region of liquid crystal display
The product structure of detection device and control require, and substantially increase detection efficiency, compared with the existing technology, have spy outstanding
Point and marked improvement.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (10)
1. a kind of automatic optical detection device in the step electrode region of liquid crystal display, it is characterised in that: including first camera component,
Second camera component, laser ranging component and the first sliding equipment,
First sliding equipment is horizontally disposed；
Movement is mounted on first sliding equipment first camera component in the horizontal direction, the first camera component packet
First camera is included, the camera lens of the first camera is down-set；
Movement is mounted on the first camera component second camera component along the vertical direction, the second camera component packet
Second camera is included, the camera lens of the second camera is set up, and the second camera is that line sweeps camera；
The camera lens of the first camera and the camera lens of the second camera are oppositely arranged, the camera lens of the first camera and described
There are a detection plane between the camera lens of two cameras, the detection plane is used to place object to be checked, the detection plane and described
The distance between camera lens of first camera is greater than detection the distance between the plane and the camera lens of the second camera；
The laser ranging component is mounted on the second camera component, and the laser ranging component includes laser displacement sensing
Device, the laser displacement sensor synchronize scanning for detecting the laser ranging component with second camera is relatively fixed
With the offset of the distance of the detection plane.
2. the automatic optical detection device in the step electrode region of liquid crystal display as described in claim 1, it is characterised in that: described
Laser ranging component is mobile along the vertical direction is mounted on the second camera component.
3. the automatic optical detection device in the step electrode region of liquid crystal display as described in claim 1, it is characterised in that: described
First sliding equipment is linear motor；First sliding equipment includes first base and slides with respect to the first of first base sliding
Block, the first camera component are fixedly connected with first sliding block.
4. the automatic optical detection device in the step electrode region of liquid crystal display as described in claim 1, it is characterised in that: also wrap
The second sliding equipment and third sliding equipment are included, second sliding equipment or the third sliding equipment are screw rod transmission machines
Structure.
5. the automatic optical detection device in the step electrode region of liquid crystal display as claimed in claim 4, it is characterised in that: described
Second sliding equipment is vertically arranged, including second base and the second sliding block, the second base be fixed on the first camera
On component, second sliding block is fixedly connected with the second camera component.
6. the automatic optical detection device in the step electrode region of liquid crystal display as claimed in claim 5, it is characterised in that: described
First camera component further includes first support；The first support includes lower frame body, riser, crossbeam and bottom plate, the bottom plate and
First sliding block level of first sliding equipment is fixedly connected；The lower frame body is fixed on the bottom plate；The riser is solid
It is scheduled on the side of lower frame body；One end of the crossbeam is fixed on the top of the riser；The first camera is fixed on the cross
The other end of beam；Vertical plane in the other side of lower frame body is fixedly connected with the second base of second sliding equipment.
7. the automatic optical detection device in the step electrode region of liquid crystal display as claimed in claim 5, it is characterised in that: described
Second camera component further includes second support, and the second support is a vertical plate, and the second support and described second are slided
Block is fixedly connected.
8. the automatic optical detection device in the step electrode region of liquid crystal display as claimed in claim 4, it is characterised in that: described
Third sliding equipment is vertically arranged, including third pedestal and third sliding block, the third pedestal be fixed on the second camera
On component, the third sliding block is fixedly connected with the laser ranging component.
9. the automatic optical detection device in the step electrode region of liquid crystal display as claimed in claim 8, it is characterised in that: described
Laser ranging component further includes third bracket, and the third bracket includes the third bracket riser and third bracket in dog-ear setting
Transverse slat, the laser displacement sensor are fixed on the third bracket transverse slat；The third sliding block and the third bracket are perpendicular
Plate is fixedly connected.
10. the automatic optical detection device in the step electrode region of liquid crystal display as described in claim 1, it is characterised in that: institute
Stating laser displacement sensor includes photophore and light-receiving device, and the photophore and light-receiving device set up separately in the second camera camera lens
Two sides.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557694A (en) * | 2019-01-16 | 2019-04-02 | 厦门福信光电集成有限公司 | A kind of automatic optical detection device and image-pickup method in the step electrode region of liquid crystal display |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557694A (en) * | 2019-01-16 | 2019-04-02 | 厦门福信光电集成有限公司 | A kind of automatic optical detection device and image-pickup method in the step electrode region of liquid crystal display |
| CN109557694B (en) * | 2019-01-16 | 2024-05-03 | 厦门福信光电集成有限公司 | Automatic optical detection device and image acquisition method for step electrode area of liquid crystal display |
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