CN107422501A - Liquid crystal motherboard shows image capturing method - Google Patents
Liquid crystal motherboard shows image capturing method Download PDFInfo
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- CN107422501A CN107422501A CN201710773059.8A CN201710773059A CN107422501A CN 107422501 A CN107422501 A CN 107422501A CN 201710773059 A CN201710773059 A CN 201710773059A CN 107422501 A CN107422501 A CN 107422501A
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- liquid crystal
- crystal motherboard
- ccd camera
- motherboard
- distance
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Abstract
The present invention provides a kind of liquid crystal motherboard and shows image capturing method.This method provides liquid crystal motherboard and shows video capturing device and liquid crystal motherboard, the display image of liquid crystal motherboard is obtained using CCD camera after liquid crystal motherboard is lighted, range unit measures the distance between CCD camera and liquid crystal motherboard and transmitted to processing control apparatus in real time simultaneously, distance of the processing control apparatus between CCD camera and liquid crystal motherboard is corresponding when being more than or less than gauged distance to control drive device driving CCD camera to be moved closer or far from liquid crystal motherboard, the distance between CCD camera and liquid crystal motherboard is set to remain gauged distance, focusing speed can effectively be lifted, the display image definition of acquisition is high.
Description
Technical field
The present invention relates to detection technique field, more particularly to a kind of liquid crystal motherboard to show image capturing method.
Background technology
With the development of Display Technique, the plane such as liquid crystal display (Liquid Crystal Display, LCD) display dress
Put because having the advantages that high image quality, power saving, fuselage is thin and has a wide range of application, and be widely used in mobile phone, TV, individual number
The various consumption electronic products such as word assistant, digital camera, notebook computer, desktop computer, turn into the master in display device
Stream.
It is multiple by being cut to obtain to the liquid crystal motherboard of a monoblock at present in the manufacturing process of liquid crystal display panel
Liquid crystal display panel.And liquid crystal motherboard for the monoblock is giving liquid crystal motherboard to apply voltage, it is necessary to carry out HVA light orientations
In the case of, promote the monomer reaction in the liquid crystal layer of liquid crystal motherboard by ultraviolet (UV) light irradiation, so as to reach LCD alignment
Purpose.
At present, in order to ensure working well for liquid crystal motherboard HVA light orientations, match somebody with somebody backward carrying out HVA light to liquid crystal motherboard,
Also need to detect its orientation effect using a LCD alignment check machine, detailed process is：By with liquid crystal motherboard backward
It is put into the housing of LCD alignment check machine, applying a setting voltage to the liquid crystal motherboard lights it, is matched somebody with somebody afterwards by liquid crystal
Charge coupling device (CCD) camera into check machine obtains the now display image of liquid crystal motherboard and transmitted to LCD alignment and examines
The main frame of machine is looked into, is contrasted the default image of display image setting voltage corresponding with one by main frame, so as to judge liquid
Whether brilliant motherboard orientation is good.
In the prior art, image is most clearly indicated preferably to detect the orientation effect of liquid crystal motherboard in order to obtain, need
Liquid crystal motherboard is focused using CCD camera, the mode of generally use software focusing, i.e., by CCD camera captured in real-time liquid
The display image of brilliant motherboard is simultaneously transferred to main frame, and host analysis show the definition of image, is not reached in the definition of display image
It is female to the motor driving CCD camera movement adjustment CCD camera and liquid crystal that control one is connected with CCD camera during a default definition
The distance between plate, until the definition of the display image for the liquid crystal motherboard that CCD camera photographs reaches default definition, it is complete
Into the operation of focusing.
At present, with the area of liquid crystal display panel, constantly to become big, thickness constantly thinning, liquid crystal motherboard also towards it is bigger,
Thinner direction is developed, and this can make to be put into liquid crystal motherboard after the housing of LCD alignment check machine during carry out orientation detection,
In the case that liquid crystal motherboard supported underneath position is constant, the bending of liquid crystal motherboard is increasingly severe, makes liquid crystal motherboard and CCD camera
The distance between can change because of the bending of liquid crystal motherboard, cause CCD camera out of focus and make its shoot display image it is clear
Degree declines, and now needs to repeat the operation of software focusing, the speed of focusing is slower.
The content of the invention
It is an object of the invention to provide a kind of liquid crystal motherboard to show image capturing method, and simple to operate, focusing speed is fast,
The display image definition of acquisition is high.
To achieve the above object, the present invention provides a kind of liquid crystal motherboard and shows image capturing method, including：
One liquid crystal motherboard is provided and shows video capturing device and a liquid crystal motherboard；
The motherboard of liquid crystal display shows the driving dress that video capturing device includes CCD camera, is connected with the CCD camera
The processing control apparatus put, being connected with drive device and the range unit being connected with processing control apparatus；Liquid crystal motherboard is located at
Below CCD camera；
Light liquid crystal motherboard；
The gauged distance between CCD camera and liquid crystal motherboard is obtained, and the gauged distance is stored in processing control apparatus；
The gauged distance is when the display image of a predeterminated position on CCD camera acquisition liquid crystal motherboard, in the display of the predeterminated position
When the definition of image is a default definition, the distance between CCD camera and liquid crystal motherboard；
CCD camera obtains the display image of liquid crystal motherboard, range unit measurement the distance between CCD camera and liquid crystal motherboard
And transmit to processing control apparatus, distance of the processing control apparatus between CCD camera and liquid crystal motherboard is more than or less than
Correspondingly control drive device driving CCD camera to be moved closer or far from liquid crystal motherboard during gauged distance, make CCD camera female with liquid crystal
The distance between plate remains gauged distance.
The gauged distance between CCD camera and liquid crystal motherboard is obtained, and the gauged distance is stored in processing control apparatus
Detailed process be：CCD camera obtains the display image of a predeterminated position on liquid crystal motherboard and transmitted to processing control apparatus, institute
Definition of the processing control apparatus according to the display image of the predeterminated position is stated, control drive device driving CCD camera movement is straight
Definition to the display image of the predeterminated position is more than or equal to a default definition, and range unit measures now CCD camera
The distance between liquid crystal motherboard is simultaneously transmitted to processing control apparatus, and now CCD camera and liquid crystal are female for processing control apparatus storage
The distance between plate is as the gauged distance between CCD camera and liquid crystal motherboard.
The drive device is motor.
The processing control apparatus is programmable logic controller (PLC).
The range unit is located at CCD camera close to one end of liquid crystal motherboard.
The range unit includes being respectively arranged on the CCD camera close to the lasing light emitter of liquid crystal motherboard one end both sides and swashed
Optical sensor, the laser sensor are connected with processing control apparatus.
The liquid crystal motherboard is HVA with liquid crystal motherboard backward.
The display image of the liquid crystal motherboard is used for the orientation effect for analyzing liquid crystal motherboard.
Beneficial effects of the present invention：A kind of liquid crystal motherboard provided by the invention shows image capturing method, there is provided liquid crystal is female
Plate shows video capturing device and liquid crystal motherboard, obtains the display shadow of liquid crystal motherboard using CCD camera after liquid crystal motherboard is lighted
Picture, while range unit measures the distance between CCD camera and liquid crystal motherboard and transmitted to processing control apparatus, the place in real time
Distance of the reason control device between CCD camera and liquid crystal motherboard is corresponding when being more than or less than gauged distance to control drive device to drive
Dynamic CCD camera moves closer or far from liquid crystal motherboard, the distance between CCD camera and liquid crystal motherboard is remained gauged distance,
Focusing speed can be effectively lifted, the display image definition of acquisition is high.
Brief description of the drawings
In order to be further understood that the feature of the present invention and technology contents, refer to below in connection with the detailed of the present invention
Illustrate and accompanying drawing, however accompanying drawing only provide with reference to and explanation use, be not used for being any limitation as the present invention.
In accompanying drawing,
Fig. 1 is that the liquid crystal motherboard of the present invention shows the flow chart of image capturing method；
Fig. 2 is the schematic diagram that the liquid crystal motherboard of the present invention shows the step S1 of image capturing method.
Embodiment
Further to illustrate the technological means and its effect of the invention taken, below in conjunction with being preferable to carry out for the present invention
Example and its accompanying drawing are described in detail.
Referring to Fig. 1, the present invention, which provides a kind of liquid crystal motherboard, shows image capturing method, comprise the following steps：
Step S1, referring to Fig. 2, providing a liquid crystal motherboard shows video capturing device and a liquid crystal motherboard 500；
The motherboard of liquid crystal display shows that video capturing device includes CCD camera 100, is connected with the CCD camera 100
Drive device 200, the processing control apparatus 300 being connected with drive device 200 and the ranging being connected with processing control apparatus 300
Device 400；Liquid crystal motherboard 500 is located at the lower section of CCD camera 100.
Specifically, liquid crystal motherboard shows that video capturing device is located at the enclosure interior of existing LCD alignment check machine, right
Answer, liquid crystal motherboard 500 is also located at the enclosure interior of existing LCD alignment check machine.
Specifically, the liquid crystal motherboard 500 is HVA with liquid crystal motherboard backward.
Specifically, the drive device 200 is motor.
Specifically, the processing control apparatus 300 is programmable logic controller (PLC) (Programmable Logic
Controller, PLC).The programmable logic controller (PLC) uses a kind of programmable memory, can be used in its storage inside journey
The user oriented instruction such as sequence, execution logic computing, sequential control, timing, counting and arithmetical operation, and can by numeral or
The various types of machineries of analog pattern input/output control or production process.
Specifically, the range unit 400 fills located at CCD camera 100 close to one end of liquid crystal motherboard 500, the driving
200 are put with the one end of CCD camera 100 away from liquid crystal motherboard 500 to be connected.
Preferably, the range unit 400 is laser (laser) range unit, and the range unit 400 includes setting respectively
Lasing light emitter 410 and laser sensor 420 in the CCD camera 100 close to one end both sides of liquid crystal motherboard 500, the laser
Sensor 420 is connected with processing control apparatus 300.
Step S2, liquid crystal motherboard 500 is lighted.
Specifically, when liquid crystal motherboard shows that video capturing device and liquid crystal motherboard 500 are located at existing LCD alignment inspection
During the enclosure interior of machine, step S2 applies a setting voltage by LCD alignment check machine to liquid crystal motherboard 500 to be carried out to it
Light.
Step S3, the gauged distance between CCD camera 100 and liquid crystal motherboard 500 is obtained, and the gauged distance is stored in
Processing control apparatus 300；The gauged distance is when CCD camera 100 obtains the display shadow of a predeterminated position on liquid crystal motherboard 500
Picture, when the definition of the display image of the predeterminated position presets definition for one, between CCD camera 100 and liquid crystal motherboard 500
Distance.
Specifically, the detailed process of the step S3 is：CCD camera 100 obtains a predeterminated position on liquid crystal motherboard 500
Display image is simultaneously transmitted to processing control apparatus 300, and the processing control apparatus 300 is according to the display image of the predeterminated position
Definition, control drive device 200 drives the movement of CCD camera 100 until the definition of the display image of the predeterminated position is more than
Or equal to a default definition, range unit 400 measures now the distance between CCD camera 100 and liquid crystal motherboard 500 and transmitted
To processing control apparatus 300, processing control apparatus 300 stores now the distance between CCD camera 100 and liquid crystal motherboard 500 work
For the gauged distance between CCD camera 100 and liquid crystal motherboard 500.
Step S4, CCD camera 100 obtains the display image of liquid crystal motherboard 500, while range unit 400 measures CCD in real time
The distance between camera 100 and liquid crystal motherboard 500 and transmitting to processing control apparatus 300, the processing control apparatus 300 exists
The distance between CCD camera 100 and liquid crystal motherboard 500 are corresponding when being more than or less than gauged distance to control drive device 200 to drive
CCD camera 100 moves closer or far from liquid crystal motherboard 500, remains the distance between CCD camera 100 and liquid crystal motherboard 500
Gauged distance.
Specifically, in the step S3 and step S4, the range unit 400 is by lasing light emitter 410 to liquid crystal motherboard 500
Launch laser, and the laser reflected through liquid crystal motherboard 500 is received so as to obtain lasing light emitter by laser sensor 420
410 transmitting laser receive elapsed time to laser by laser sensor 420, with reference to the spread speed of laser, you can obtain
The CCD camera 100 at lasing light emitter 410 and the place of laser sensor 420 is obtained close to one end of liquid crystal motherboard 500 and liquid crystal motherboard 500
The distance between, i.e. the distance between CCD camera 100 and liquid crystal motherboard 500.
Specifically, the display image of the liquid crystal motherboard 500 is used for the orientation effect for analyzing liquid crystal motherboard 500.Specifically,
By the way that liquid crystal motherboard 500 is shown into image compared with a corresponding default picture for setting voltage, to analyze liquid crystal motherboard
500 orientation effect.
It should be noted that the liquid crystal motherboard of the present invention shows image capturing method, it is female to obtain liquid crystal in CCD camera 100
While the display image of plate 500, measured in real time using range unit 400 between CCD camera 100 and liquid crystal motherboard 500 away from
From and by the Distance Transmission to processing control apparatus 300, when the distance between CCD camera 100 and liquid crystal motherboard 500 are more than standard
Apart from when, processing control apparatus 300 controls drive device 200 to drive CCD camera 100 to liquid crystal motherboard 500 close to until CCD phases
Distance between machine 100 and liquid crystal motherboard 500 is equal to gauged distance, when CCD camera 100 and the distance between liquid crystal motherboard 500 are small
When gauged distance, processing control apparatus 300 control drive device 200 to drive CCD camera 100 away from liquid crystal motherboard 500 until
Distance between CCD camera 100 and liquid crystal motherboard 500 is equal to gauged distance, so that between CCD camera 100 and liquid crystal motherboard 500
Distance remain gauged distance, and the gauged distance is a default position on liquid crystal motherboard 500 that CCD camera 100 obtains
The distance between CCD camera 100 and liquid crystal motherboard 500 when the definition for the display image put presets definition for one, when CCD phases
Gauged distance is remained between machine 100 and liquid crystal motherboard 500, the motherboard of liquid crystal display 500 that can obtain CCD camera 100
Display image definition, improve the problem of definition of the image out of focus for causing to obtain of CCD camera 100 declines, thus when should
, can be more accurately to liquid crystal motherboard when the display image of liquid crystal motherboard 500 is applied to the orientation effect of analysis liquid crystal motherboard 500
500 orientation effect is judged, while the method focused relative to prior art by the software repeated, focusing of the invention
Speed is faster.
In summary, liquid crystal motherboard of the invention shows image capturing method, there is provided liquid crystal motherboard shows image capturing dress
Put with liquid crystal motherboard, the display image of liquid crystal motherboard is obtained using CCD camera after liquid crystal motherboard is lighted, while range unit is real
When measure and the distance between CCD camera and liquid crystal motherboard and transmit to processing control apparatus, the processing control apparatus is in CCD phases
The distance between machine and liquid crystal motherboard are corresponding when being more than or less than gauged distance to control drive device driving CCD camera close or remote
Chaotropic crystalline substance motherboard moves, and the distance between CCD camera and liquid crystal motherboard is remained gauged distance, can effectively lift focusing
Speed, the display image definition of acquisition are high.
It is described above, for the person of ordinary skill of the art, can be with technique according to the invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the appended right of the present invention
It is required that protection domain.
Claims (8)
1. a kind of liquid crystal motherboard shows image capturing method, it is characterised in that including：
One liquid crystal motherboard is provided and shows video capturing device and a liquid crystal motherboard (500)；
The motherboard of liquid crystal display shows that video capturing device includes CCD camera (100), is connected with the CCD camera (100)
Drive device (200), the processing control apparatus (300) being connected with drive device (200) and with processing control apparatus (300) even
The range unit (400) connect；Liquid crystal motherboard (500) is below CCD camera (100)；
Light liquid crystal motherboard (500)；
The gauged distance between CCD camera (100) and liquid crystal motherboard (500) is obtained, and the gauged distance is stored in processing control
Device (300) processed；The gauged distance is when CCD camera (100) obtains the display shadow of a predeterminated position on liquid crystal motherboard (500)
Picture, when the definition of the display image of the predeterminated position presets definition for one, CCD camera (100) and liquid crystal motherboard (500)
Between distance；
CCD camera (100) obtains the display image of liquid crystal motherboard (500), range unit (400) measurement CCD camera (100) and liquid
The distance between brilliant motherboard (500) is simultaneously transmitted to processing control apparatus (300), and the processing control apparatus (300) is in CCD camera
(100) it is corresponding when being more than or less than gauged distance with the distance between liquid crystal motherboard (500) to control drive device (200) to drive
CCD camera (100) is mobile closer or far from liquid crystal motherboard (500), make between CCD camera (100) and liquid crystal motherboard (500) away from
From remaining gauged distance.
2. liquid crystal motherboard as claimed in claim 1 shows image capturing method, it is characterised in that obtain CCD camera (100) with
Gauged distance between liquid crystal motherboard (500), and the gauged distance is stored in the detailed process of processing control apparatus (300)
For：CCD camera (100) obtains the display image of a predeterminated position on liquid crystal motherboard (500) and transmitted to processing control apparatus
(300), the processing control apparatus (300) is according to the definition of the display image of the predeterminated position, control drive device (200)
Drive CCD camera (100) mobile until the definition of the display image of the predeterminated position is surveyed more than or equal to a default definition
Now the distance between CCD camera (100) and liquid crystal motherboard (500) are measured away from device (400) and are transmitted to processing control apparatus
(300), processing control apparatus (300) storage now the distance between CCD camera (100) and liquid crystal motherboard (500) conduct CCD phases
Gauged distance between machine (100) and liquid crystal motherboard (500).
3. liquid crystal motherboard as claimed in claim 1 shows image capturing method, it is characterised in that the drive device (200)
For motor.
4. liquid crystal motherboard as claimed in claim 1 shows image capturing method, it is characterised in that the processing control apparatus
(300) it is programmable logic controller (PLC).
5. liquid crystal motherboard as claimed in claim 1 shows image capturing method, it is characterised in that the range unit (400)
Located at CCD camera (100) close to one end of liquid crystal motherboard (500).
6. liquid crystal motherboard as claimed in claim 5 shows image capturing method, it is characterised in that the range unit (400)
Including being respectively arranged on lasing light emitter (410) and laser sensing of the CCD camera (100) close to liquid crystal motherboard (500) one end both sides
Device (420), the laser sensor (420) are connected with processing control apparatus (300).
7. liquid crystal motherboard as claimed in claim 1 shows image capturing method, it is characterised in that the liquid crystal motherboard (500)
It is HVA with liquid crystal motherboard backward.
8. liquid crystal motherboard as claimed in claim 7 shows image capturing method, it is characterised in that the liquid crystal motherboard (500)
Display image be used to analyze the orientation effect of liquid crystal motherboard (500).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710773059.8A CN107422501B (en) | 2017-08-31 | 2017-08-31 | Method for acquiring display image of liquid crystal mother board |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710773059.8A CN107422501B (en) | 2017-08-31 | 2017-08-31 | Method for acquiring display image of liquid crystal mother board |
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| CN107422501A true CN107422501A (en) | 2017-12-01 |
| CN107422501B CN107422501B (en) | 2020-11-24 |
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