CN104950492B - Liquid crystal display defect automatic checkout system - Google Patents
Liquid crystal display defect automatic checkout system Download PDFInfo
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- CN104950492B CN104950492B CN201510400870.2A CN201510400870A CN104950492B CN 104950492 B CN104950492 B CN 104950492B CN 201510400870 A CN201510400870 A CN 201510400870A CN 104950492 B CN104950492 B CN 104950492B
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- display screen
- camera
- liquid crystal
- crystal display
- station
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/94—Investigating contamination, e.g. dust
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The present invention provides a kind of liquid crystal display defect automatic checkout system, the system includes two display screen moving parts, one camera motion component, electric-control system, computer, alarm and display, described two display screen moving parts are arranged in parallel, each display screen moving parts include detection station and installation station, the camera motion component is horizontally installed on the top of two display screen moving parts, when a display screen moving parts are moved to detection station with liquid crystal display, electric control system controls camera motion component is moved to the detection station with camera, another display screen moving parts of electric control system controls are moved to installation station simultaneously, the image information of camera acquisition liquid crystal display is simultaneously sent to computer progress image procossing, display shows associated disadvantages and passes through alarm equipment alarm if display screen is defective.The alternative traditional human eye detection mode of the present invention, can save human cost, moreover it is possible to avoid erroneous judgement, missing inspection problem caused by human eye detection.
Description
Technical field
The present invention relates to the automatic detection fields of liquid crystal display defect, automatic more particularly, to a kind of liquid crystal display defect
Detection system.
Background technique
The liquid crystal display just produced can all carry out surface contamination and the detection of electric defect before packaging factory.Mesh
Before, the general detection mode of liquid crystal display surface contamination and electric defect is worker's human eye detection.Using existing for human eye detection
Main problem:
1, need to expend a large amount of human resources, human cost is high；
2, human eye detects for a long time, and eyes are easily tired, and subjective factor is affected, and be easy to cause more erroneous judgement
And missing inspection；
3, under dim light, worker is easy to obtain occupational disease for human eye long-term work, is unfavorable for occupational health.
Thus, finding a kind of technical solution that can solve foregoing problems is a urgent problem to be solved.
Summary of the invention
It is an object of the invention to: in view of the problems of the existing technology, a kind of liquid crystal display defect is provided and is examined automatically
Examining system solves the problems, such as that human eye detection is at high cost, solves the problems, such as that human eye detection erroneous judgement missing inspection is more.
Goal of the invention of the invention is achieved through the following technical solutions:
A kind of liquid crystal display defect automatic checkout system, which is characterized in that the system includes two display screen exercise groups
Part, a camera motion component, electric-control system, computer, alarm and display, described two display screen moving parts are parallel
Setting, each display screen moving parts include detection station and installation station, and the camera motion component is horizontally installed on two
The top of display screen moving parts, it is automatically controlled when a display screen moving parts are moved to detection station with liquid crystal display
System controls camera motion component and is moved to the detection station with camera, while another display screen of electric control system controls moves
Component is moved to installation station, and the image information of camera acquisition liquid crystal display is simultaneously sent to computer progress image procossing, if
Display screen is defective, and display shows associated disadvantages and passes through alarm equipment alarm.
As further technical solution, which includes the station constituted in frame surrounding installation steel plate,
The station is divided into two cavitys up and down by a mounting plate, and the electric-control system and computer installation are in lower chamber, and described two
A display screen moving parts, a camera motion component, alarm and display are arranged in upper cavity, two display screen exercise groups
Part is installed on a mounting board.
As further technical solution, the air cleaning for purifying air in upper cavity is equipped at the top of upper cavity
Device.
As further technical solution, set that there are four castor and four adjusting foot stands in station bottom.
As further technical solution, the display screen moving parts include servo motor, linear motion slide unit and show
Display screen mounting plate, one end of the linear motion slide unit is detection station, the other end is installation station, and the servo motor is fixed
At the detection station end of linear motion slide unit, and through screw rod driving display screen mounting plate between detection station and installation station
It moves back and forth.
As further technical solution, the positioning for blocking liquid crystal display is provided on the display screen mounting plate
Mark sliding block and positioning sliding block.
As further technical solution, the camera motion component includes servo motor, linear motion slide unit, camera peace
It shelves, main shooting camera and two side shooting cameras, the servo motor are arranged in the one end for the slide unit that moves along a straight line, and pass through screw rod band
Dynamic camera mounting bracket moves back and forth between two detection stations, and the underface of camera mounting bracket is arranged in the main shooting camera,
Described two side shooting cameras are located at the two sides of main shooting camera, and are fixed in camera mounting bracket.
As further technical solution, it is equipped between main shooting camera and camera mounting bracket for adjusting main shooting camera and liquid
The manual slide unit of distance between crystal display screen is equipped between side shooting camera and camera mounting bracket for adjusting side shooting camera and liquid crystal
The manual slide unit of distance between display screen.
As further technical solution, light source is equipped in the camera mounting bracket of main shooting camera beside.
Compared with prior art, the invention has the following advantages that
1, the alternative traditional human eye detection mode of the system, when can save human cost, while also be avoided that human eye is long
Between detect fatigue after, caused by erroneous judgement, missing inspection；
2, the system is moved back and forth above two display screen moving parts using a set of camera, it can be achieved that single screen is duplexing
Position detection, reduces hardware cost, improves detection efficiency；
3, system is equipped with air purifier, and energy purification system inner air provides advantage for display screen test；
4, the equipment carries out Image Acquisition using high resolution camera and professional image computer carries out image procossing
And analysis, detection accuracy is high, False Rate is low.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention；
Fig. 2 is the side structure schematic view of Fig. 1；
Fig. 3 is the backsight structural representation (rear door assembly open shape body) of Fig. 1；
Structural schematic diagram when Fig. 4 is display screen moving parts and the cooperation of camera motion component；
Fig. 5 is the schematic perspective view of camera motion component；
Fig. 6 is the schematic view of the front view of camera motion component；
Fig. 7 is the left view structural representation of Fig. 6；
Fig. 8 is the schematic perspective view of display screen moving parts.
Description of symbols:
1- station, 1.1- castor, 1.2- adjusting foot stand, 1.3- frame, 1.4- rear door assembly, 1.5- door sensor,
1.6- steel plate, 2- display, 3- touch screen, 4- mouse-keyboard drawer, 5- alarm, 6- air purifier, 7- camera motion group
Part, 7.1- linear motion slide unit, 7.2- servo motor, 7.3- camera mounting bracket, the manual slide unit of 7.4-, the side 7.5- shooting camera,
7.6- light source, 7.7- cable drag chain, the main shooting camera of 7.8-, 8- display screen moving parts, 8.1- linear motion slide unit, 8.2- servo
Motor, 8.3- are tested liquid crystal display, 8.4- cable drag chain, 8.5- mounting plate, 8.6- display screen mounting plate, 8.7- positioning cunning
Block, 8.8- telltale mark sliding block, 8.9- backlight pinboard, 9- electric-control system, 10- computer.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
The present invention provides a kind of liquid crystal display defect automatic checkout system, as shown in Figure 1, Figure 2, Figure 3 shows, mainly by two
8, camera motion components 7 of a display screen moving parts, electric-control system 9, computer 10, alarm 5 and display 2 form.
Two display screen moving parts 8 are arranged in parallel, and each display screen moving parts 8 include detection station and installation station, erector
Position is tested liquid crystal display for installing and dismounting, and detection station is for detecting tested liquid crystal display.Each display screen exercise group
Part can move back and forth back and forth between detection station and installation station with tested display screen.The laterally setting of camera motion component 7
In the top of two display screen moving parts 8, camera motion component 7 can with camera two display screen moving parts 7 inspection
It surveys between station and moves back and forth back and forth.When a display screen moving parts are moved to detection station with liquid crystal display (tested)
When, electric-control system 9 controls camera motion component 7 and is moved to the detection station with camera, and camera acquires the figure of liquid crystal display
As information and it is sent to the progress image procossing of computer 10, display 2 shows associated disadvantages simultaneously if liquid crystal display is defective
It is alarmed by alarm 5；Meanwhile electric-control system 9 controls another display screen moving parts and is moved to installation station, worker will be by
It surveys liquid crystal display to be placed on the display screen moving parts, then the display screen moving parts have taken liquid crystal display to inspection
It surveys station to be detected, so repeats the continuous detection that tested display screen then can be achieved.
For the ease of installation, dust-proof, mobile etc., which is additionally provided with a station 1, and the station is by frame 1.3
And be mounted on 1.3 surrounding of frame steel plate 1.6 form, 1 overall dimensions of station be 1000mm (length) × 1000mm (width) ×
2145mm (height), wherein frame uses aluminium alloy extrusions, and steel plate uses bending plastic-spraying steel plate.By a mounting plate inside station 1
It is divided into two cavitys up and down, external to be equipped with a table top in 1010mm height and position, 2 mounting height of display is designed as 1100mm,
Meet assembly line plant operation platform design specification and ergonomics.Integral keyboard mouse is installed below 1 table top of station
Drawer 4 is used for equipment debugging.19 cun of display 2 and 7 cun touch screens 3 are installed on 1 panel of station, it is aobvious to provide data
Show and parameter selection.Air purifier 6 is installed, purification inner air is that liquid crystal display test is provided at the top of station 1
Sharp condition.Alarm 5 uses acousto-optic warning lamp, and is mounted on the top of station 1, has operation instruction and warning function, when setting
When standby failure, operator is reminded to pay attention to by its sound-light alarm.There are four castor 1.1 and four for the design of 1 bottom of station
A adjusting foot stand 1.2, movement and fixed leveling for equipment.Rear door assembly 1.4 and door sensor are equipped at station rear portion
1.5: after opening rear door assembly 1.4, the operation such as can internal component be detected, be repaired；Door sensor 1.5 is mainly used for supervising
Survey the closing of rear door assembly 1.4 and open state.Electric-control system 9 and computer 10 are arranged in lower chamber.Two display screen exercise groups
8, settings of camera motion component 7 of part are in upper cavity, and two installations of display screen moving parts 8 are on a mounting board.
The present invention also provides a kind of camera motion component, for structure as shown in Fig. 4~Fig. 6, camera motion component includes watching
Take motor 7.2, linear motion slide unit 7.1, camera mounting bracket 7.3, main shooting camera 7.8 and two side shooting cameras 7.5.Servo motor
If 7.2 set in one end of linear motion slide unit 7.1, and drive camera mounting bracket 7.3 in display screen moving parts by screw rod
Move back and forth between two detection stations.The underface of camera mounting bracket 7.3, two side shooting cameras are arranged in main shooting camera 7.8
7.5 are located at the two sides of main shooting camera 7.8, and are fixed in camera mounting bracket 7.3.In addition, clapping phase in order to accurately adjust main, side
The distance between machine and tested liquid crystal display 8.3 are equipped between main shooting camera 7.8 and camera mounting bracket 7.3 for adjusting master
The manual slide unit 7.4 of distance between shooting camera 7.8 and tested liquid crystal display 8.3, side shooting camera 7.5 and camera mounting bracket 7.3
Between be equipped with manual slide unit 7.4 for adjusting distance between side shooting camera 7.5 and tested liquid crystal display 8.3.Moreover, in master
The camera mounting bracket 7.3 of 7.8 beside of shooting camera is equipped with light source 7.6, for improving the imaging effect of camera.Camera installation
Frame 7.3 is additionally provided with cable drag chain 7.7, it is ensured that cable is not wound when phase unit moves left and right.
The present invention also provides a kind of display screen moving parts, structure is as shown in Fig. 4, Fig. 7 and Fig. 8, display screen exercise group
Part includes servo motor 8.2, linear motion slide unit 8.1, cable drag chain 8.4, mounting plate 8.5, display screen mounting plate 8.6, positioning
Sliding block 8.7, telltale mark sliding block 8.8 and backlight pinboard 8.9.One end of linear motion slide unit 8.1 is detection station, the other end
To install station, servo motor 8.2 is fixed on the detection station end of linear motion slide unit 8.1, and passes through screw rod and mounting plate 8.5
Connection, the line that mounting plate 8.5 can be driven to move back and forth between detection station and installation station, while installing on mounting plate 8.5
Cable drag chain 8.4 can guarantee that cable is not wound when tested liquid crystal display 8.3 moves back and forth.Display screen mounting plate 8.6 is fixed on peace
8.5 top of loading board, is the installation foundation as tested liquid crystal display 8.3.Backlight pinboard 8.9 is mounted on display screen installation
The lower right corner of plate 8.6, and connect by connector with tested liquid crystal display 8.3.Tested 8.3 upper and lower of liquid crystal display is shown
Telltale mark sliding block 8.8 and positioning sliding block 8.7 are mounted on display screen mounting plate 8.6 respectively, realizes the constraint of its up and down direction.Together
When telltale mark sliding block 8.8 also provide image procossing benchmark for the tested imaging of liquid crystal display 8.3.
For present system after power initiation, system carries out self-test, camera motion component and display screen moving parts position
It returns to zero, system is ready to complete.
Tested display screen parameter is set on the touch screen 3 first, and system calls its corresponding test program automatically.Then it grasps
Make personnel tested liquid crystal display is mounted on the display screen mounting plate of left side, it is corresponding on pushing operation table top simultaneously after the completion
Two start buttons, left side display screen moving parts drive tested liquid crystal display movement.When tested liquid crystal display reaches in advance
Positioning postpones, and the camera on camera motion component is started to work, and completes Image Acquisition and pass back to computer to carry out image procossing.
While left side display screen moving parts work, another piece of tested liquid crystal display is mounted on right side display screen and pacified by operator
In loading board, after the completion of left side is tested liquid crystal display detection, camera is transported to right side display screen automatically by camera motion component
Above moving parts, operator presses its corresponding two start button simultaneously at this time, and right side display screen moving parts drive
Tested liquid crystal display movement.After tested liquid crystal display reaches predetermined position, the camera on camera motion component starts work
Make, completes Image Acquisition and pass back to computer to carry out image procossing.So circulation realizes the continuous detection of tested display screen.
When tested display screen is defective, the display 2 on station will show its corresponding defect and remind operator
Member.
Accumulative detection total quantity and defective display screen quantity can be consulted on touch screen 3 simultaneously.
When system errors, the alarm 5 above station will issue alarm, and operator is reminded to pay attention to.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is noted that all
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention should be included in guarantor of the invention
Within the scope of shield.
Claims (7)
1. a kind of liquid crystal display defect automatic checkout system, which is characterized in that the system include two display screen moving parts,
One camera motion component, electric-control system, computer, alarm and display, described two display screen moving parts are set in parallel
It sets, each display screen moving parts include detection station and installation station, and the camera motion component is horizontally installed on two and shows
The top of display screen moving parts, when a display screen moving parts are moved to detection station with liquid crystal display, automatically controlled system
System control camera motion component is moved to the detection station with camera, while electric control system controls another display screen exercise groups
Part is moved to installation station, and the image information of camera acquisition liquid crystal display is simultaneously sent to computer progress image procossing, if aobvious
Display screen is defective, and display shows associated disadvantages and passes through alarm equipment alarm；The system further includes station, after station
Portion is equipped with rear door assembly and door sensor, and door sensor is for monitoring rear door assembly closing and open state；
The display screen moving parts include servo motor, linear motion slide unit, cable drag chain, mounting plate, display screen mounting plate,
Positioning sliding block, telltale mark sliding block and backlight pinboard, one end of the linear motion slide unit is detection station, the other end is peace
Station is filled, the servo motor is fixed on the detection station end of linear motion slide unit, and connect by screw rod with mounting plate, drives
Mounting plate moves back and forth between detection station and installation station；Cable drag chain, the display screen are installed on the mounting plate
Mounting plate is fixed on above mounting plate；The backlight pinboard is mounted on display screen mounting plate, and by connector and is tested
Liquid crystal display connection；Telltale mark sliding block for blocking liquid crystal display and positioning are installed on the display screen mounting plate
Sliding block.
2. a kind of liquid crystal display defect automatic checkout system according to claim 1, which is characterized in that the system includes
One station constituted in frame surrounding installation steel plate, the station are divided into two cavitys up and down, institute by a mounting plate
Electric-control system and computer installation are stated in lower chamber, described two display screen moving parts, camera motion component, an alarm
With display setting in upper cavity, two display screen moving parts installations are on a mounting board.
3. a kind of liquid crystal display defect automatic checkout system according to claim 2, which is characterized in that on upper cavity top
Portion is equipped with the air purifier for purifying air in upper cavity.
4. a kind of liquid crystal display defect automatic checkout system according to claim 2, which is characterized in that at station bottom
Portion is set there are four castor and four adjusting foot stands.
5. a kind of liquid crystal display defect automatic checkout system according to claim 1, which is characterized in that the camera fortune
Dynamic component includes servo motor, linear motion slide unit, camera mounting bracket, main shooting camera and two side shooting cameras, the servo electricity
One end of linear motion slide unit is arranged in machine, and drives camera mounting bracket to move back between two detection stations by screw rod
Dynamic, the underface of camera mounting bracket is arranged in the main shooting camera, and described two side shooting cameras are located at the two sides of main shooting camera, and
It is fixed in camera mounting bracket.
6. a kind of liquid crystal display defect automatic checkout system according to claim 5, which is characterized in that main shooting camera with
The manual slide unit for adjusting distance between main shooting camera and liquid crystal display, side shooting camera and phase are equipped between camera mounting bracket
The manual slide unit for adjusting distance between side shooting camera and liquid crystal display is equipped between machine mounting rack.
7. a kind of liquid crystal display defect automatic checkout system according to claim 5, which is characterized in that in main shooting camera
The camera mounting bracket of beside is equipped with light source.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510400870.2A CN104950492B (en) | 2015-07-09 | 2015-07-09 | Liquid crystal display defect automatic checkout system |
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| CN201510400870.2A CN104950492B (en) | 2015-07-09 | 2015-07-09 | Liquid crystal display defect automatic checkout system |
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| CN104950492B true CN104950492B (en) | 2019-01-18 |
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