CN208459716U - A kind of liquid crystal display detection device - Google Patents
A kind of liquid crystal display detection device Download PDFInfo
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- CN208459716U CN208459716U CN201821201223.4U CN201821201223U CN208459716U CN 208459716 U CN208459716 U CN 208459716U CN 201821201223 U CN201821201223 U CN 201821201223U CN 208459716 U CN208459716 U CN 208459716U
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- liquid crystal
- crystal display
- detection device
- industrial camera
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Abstract
The utility model relates to a kind of liquid crystal display detection devices, described device includes display screen image-forming block and the image acquisition component above the display screen image-forming block, display screen image-forming block includes the transparent platform for placing liquid crystal display, down polaroid and backlight, down polaroid and backlight are successively set on the lower section of transparent platform, image acquisition component includes industrial camera and upper polaroid, upper polaroid is arranged in below the camera lens of industrial camera, the center of the camera lens of industrial camera is aligned with the center of transparent platform in vertical direction, backlight and industrial camera respectively with industry control mechatronics, industrial personal computer is also electrically connected with liquid crystal display.The liquid crystal display detection device of the utility model improves the degree of automation of liquid crystal display detection, and can greatly improve detection efficiency and detection accuracy, reduces cost of labor instead of manually detecting to liquid crystal display.
Description
Technical field
The utility model relates to liquid crystal display detection technique field more particularly to a kind of liquid crystal display detection devices.
Background technique
The features such as liquid crystal display is thin with its fuselage, low-power consumption is widely used in electronic product, wherein liquid crystal
Display screen is the core component of liquid crystal display, for the display effect for guaranteeing liquid crystal display, needs to carry out liquid crystal display scarce
Fall into detection.Currently, to the defects detection of liquid crystal display mainly by the way of artificial detection, and manual detection efficiency is low, holds
Easily there is the case where false retrieval and missing inspection, and expend a large amount of human resources, improves corresponding cost.
Utility model content
In order to improve the detection efficiency and detection accuracy of liquid crystal display, corresponding cost is reduced, the utility model provides one
Kind liquid crystal display detection device.
A kind of liquid crystal display detection device provided by the utility model, described device include display screen image-forming block and position
Image acquisition component above the display screen image-forming block, the display screen image-forming block includes for placing liquid crystal display
Transparent platform, down polaroid and the backlight of screen, the down polaroid and the backlight are successively set on the transparent platform
Lower section, described image acquisition component include industrial camera and upper polaroid, and the industrial camera is arranged in the upper polaroid
Below camera lens, the center of the camera lens of the industrial camera is aligned with the center of the transparent platform in vertical direction, the backlight
Respectively with industry control mechatronics, the industrial personal computer is also electrically connected with liquid crystal display for source and the industrial camera.
The beneficial effects of the utility model are: inputting picture signal, and point to liquid crystal display when detection liquid crystal display
Bright backlight, the light for issuing backlight pass sequentially through down polaroid, liquid crystal display and upper polaroid, and down polaroid is used for
The light beam that backlight generates is converted into polarised light, upper polaroid generates bright for parsing the polarised light after liquid crystal electrical modulation
Dark comparison passes through picture of the industrial camera acquisition on the liquid crystal display after upper polaroid parses to generate display picture
Face, and compared with pre-stored standard picture, whether detection liquid crystal display is qualified.It is artificial right to be replaced using the present apparatus
Liquid crystal display is detected, and the degree of automation of liquid crystal display detection is improved, and can greatly improve detection efficiency
And detection accuracy, reduce cost of labor.
Based on the above technical solution, the utility model can also do following improvement:
Further, described image acquisition component includes electric sliding rail, the industrial camera is mounted on the electric sliding rail
On sliding block, the electric sliding rail and the industry control mechatronics.
The beneficial effect of above-mentioned further scheme is: moving left and right industrial camera by electric sliding rail, respectively to liquid crystal
The left area of display screen and right half area are detected, and detection accuracy can be greatly improved.
Further, position sensor is arranged on the sliding slot of the electric sliding rail, the position sensor and industry control are electromechanical
Connection.
The beneficial effect of above-mentioned further scheme is: controlling stopping when industrial camera moves left and right by position sensor
Position, camera lens is right against the left area of liquid crystal display or the center of right half area when industrial camera being made to acquire picture,
Convenient for collecting high-precision liquid crystal display picture.
Further, the display screen image-forming block includes at least one side light source, the side light source is arranged described transparent
The upper surface of platform, and with the industry control mechatronics.
The beneficial effect of above-mentioned further scheme is: using side light source screen illuminating surface, and closes backlight, passes through work
Industry camera acquires screen-picture, and compares with pre-stored picture, can carry out defects detection to screen surface.
Further, the side light source is strip source.
The beneficial effect of above-mentioned further scheme is: can make light uniform illumination screen surface using strip source, facilitate
Screen surface picture high-definition is acquired, while the installation of strip source stability height is simple, adjustable-angle.
Further, being provided with the positioning sliding block for determining the liquid crystal display placement location on the transparent platform.
The beneficial effect of above-mentioned further scheme is: determining the placement location of liquid crystal display by positioning sliding block, makes liquid
The center of crystal display screen is aligned with the center of transparent platform, acquires screen-picture convenient for industrial camera.
Further, described device includes the display for showing testing result, the display and the industry control are electromechanical
Connection.
The beneficial effect of above-mentioned further scheme is: the testing result of liquid crystal display is shown using display, it is accurate fixed
Position fault point helps to carry out subsequent processing to liquid crystal display.
Further, described device includes alarm, the alarm and the industry control mechatronics.
The beneficial effect of above-mentioned further scheme is: when a defect is detected, can notify work people rapidly by alarm
Member, facilitates staff and quickly handles bad products.
Detailed description of the invention
Fig. 1 is a kind of front view of liquid crystal display detection device of the utility model embodiment；
Fig. 2 is a kind of side view of liquid crystal display detection device of the utility model embodiment；
Fig. 3 is a kind of circuit connection diagram of liquid crystal display detection device of the utility model embodiment；
Fig. 4 is the circuit connection diagram of another liquid crystal display detection device of the utility model embodiment.
In attached drawing, parts list represented by the reference numerals are as follows:
1, transparent platform, 2, backlight, 3, down polaroid, 4, industrial camera, 5, upper polaroid, 6, electric sliding rail, 7, position
Set sensor, 8, side light source.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1, 2, 3, a kind of liquid crystal display detection device provided by the utility model, described device include display
Shield image-forming block and the image acquisition component above the display screen image-forming block, the display screen image-forming block includes using
In transparent platform 1, down polaroid 3 and the backlight 2 of placing liquid crystal display, the down polaroid 3 and the backlight 2 are successively
It is arranged below the transparent platform 1, described image acquisition component includes industrial camera 4 and upper polaroid 5, the upper polaroid
5 are arranged in below the camera lens of the industrial camera 4, the center at the center of the camera lens of the industrial camera 4 and the transparent platform 1
Be aligned in vertical direction, the backlight 2 and the industrial camera 4 respectively with industry control mechatronics, the industrial personal computer also with liquid
Crystal display screen electrical connection.
In the present embodiment, when detecting liquid crystal display, picture signal is inputted to liquid crystal display, backlight 2 is lighted, makes to carry on the back
The light that light source 2 issues passes sequentially through down polaroid 3, liquid crystal display and upper polaroid 5, and down polaroid 3 is used for backlight 2
The light beam of generation is converted to polarised light, and upper polaroid 5 is used to parse the polarised light after liquid crystal electrical modulation, generates comparison of light and shade,
To generate display picture, by picture of the acquisition of industrial camera 4 on the liquid crystal display after upper polaroid parses, and with
Pre-stored standard picture compares, and whether detection liquid crystal display is qualified.It is replaced using the present apparatus manually to liquid crystal
Display screen is detected, and the degree of automation of liquid crystal display detection is improved, and can greatly improve detection efficiency and detection
Precision reduces cost of labor.
Specifically, the industrial personal computer includes pattern generagor (P/G, patter generator), and P/G passes through
Pressing, signal cable are electrically connected with liquid crystal display terminal.
Preferably, upper polaroid 5 is pasted on the camera lens of industrial camera 4, and down polaroid 3 is pasted under transparent platform 1
The polarization direction on surface, upper polaroid 5 is vertical with the polarization direction of down polaroid 3.
Specifically, 72M area array CCD (Charge Coupled Device) industrial camera 4 can be used, CCD is machine vision
Common imaging sensor, can directly convert optical signals into analog current signal, and current signal turns by amplification and modulus
It changes, realizes acquisition, storage, transmission, processing and the reproduction of image.
Preferably, as shown in figure 4, described image acquisition component includes electric sliding rail 6, the industrial camera 4 is mounted on institute
On the sliding block for stating electric sliding rail 6, the electric sliding rail 6 and the industry control mechatronics.
Move left and right industrial camera 4 by electric sliding rail 6, respectively to the left area of liquid crystal display and right half area
It is detected, convenient for collecting high-precision liquid crystal display picture.
Specifically, electric sliding rail 6 includes sliding block and sliding slot, and sliding block does straight reciprocating motion on the chute, using motor control
The mode of system, and can be connect by wireless transmission methods such as WIFI with mobile phone, sliding rail movement and triggering are directly controlled by mobile phone
Shutter, electric sliding rail 6 are horizontally installed on the top of transparent platform 1 by metallic support.
Preferably, position sensor 7 is set on the sliding slot of electric sliding rail 6, and position sensor 7 is electrically connected with the industrial personal computer
It connects.
Stop position when industrial camera 4 moves left and right is controlled by position sensor 7, industrial camera 4 is made to acquire picture
Shi Jingtou is right against the left area of liquid crystal display or the center of right half area, convenient for collecting high-precision liquid crystal
Display screen picture.
Preferably, it is additionally provided with image pick-up card on industrial camera 4, collected picture can be promptly transferred to work
Control machine.
In the present embodiment, industrial camera 4 first passes through electric sliding rail 6 and is moved to above liquid crystal display left area, camera lens
Center is right against the center of liquid crystal display left area, lights backlight 2, sequentially inputs picture letter to liquid crystal display
Number, industrial camera 4 successively acquires each width picture presented in liquid crystal display left area, and rapid by image pick-up card
It is transmitted to industrial personal computer, is compared with pre-stored standard picture, detection liquid crystal display left area whether there is defect；
Then industrial camera 4 is moved to liquid crystal display right half area by electric sliding rail 6, by the same method to liquid crystal display
It is detected right half area.
Specifically, the picture includes red R255, green G255, indigo plant B255, white L255, black L0, DPO, PXL, ash L63 and ash
L127.The displaying principle of display screen is that different colours, each pixel on display screen are shown by RGB (red, green, blue) three primary colors
It is a pixel of RGB synthesis.Therefore each pixel in each picture and picture of acquisition is detected, judges liquid
Whether crystal display screen is qualified.
Preferably, the display screen image-forming block includes at least one side light source 8, and the setting of side light source 8 is described transparent flat
The upper surface of platform 1, and with the industry control mechatronics.
The screen surface of liquid crystal display is illuminated using side light source 8, and closes backlight, is acquired and is shielded by industrial camera 4
The picture in scene plot face, and compared with pre-stored picture, defects detection can be carried out to screen surface.
Specifically, side light source 8 is set on the outside of the liquid crystal display of 1 upper surface of transparent platform, convenient for placing liquid crystal display
Shield, and facilitates the picture of acquisition high contrast by side light source.
Preferably, side light source 8 is strip source.
Light uniform illumination screen surface can be made using strip source, help to collect screen surface picture high-definition
Face, while the installation of strip source stability height is simple, adjustable-angle.
In the present embodiment, before inputting picture signal to liquid crystal display, backlight 2 is closed, side light source 8, work are lighted
Industry camera 4 acquires the picture of liquid crystal display left area and right half area screen surface respectively, and by industrial personal computer and in advance
The standard picture of storage is faced than judging liquid crystal display screen surfaces with the presence or absence of defect and spot.
Specifically, the defect of liquid crystal display mainly includes Mura class defect (PS Mura), spot class defect (cap), line class
Defect (dim spot band line), point defect (PT, spot, stain).
Preferably, the positioning sliding block for determining liquid crystal display placement location is provided on the transparent platform.
The placement location that liquid crystal display is determined by positioning sliding block, makes in the center and transparent platform of liquid crystal display
Heart alignment acquires screen-picture convenient for industrial camera.
Preferably, described device includes the display for showing testing result, and the display and the industry control are electromechanical
Connection.
The testing result of liquid crystal display is shown using display, is accurately positioned fault point, is facilitated to liquid crystal display
Carry out subsequent processing.
Preferably, described device includes alarm, the alarm and the industry control mechatronics.
When a defect is detected, staff can be notified rapidly by alarm, facilitates staff and quickly handles not
Good product.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (8)
1. a kind of liquid crystal display detection device, which is characterized in that described device includes display screen image-forming block and is located at described
Image acquisition component above display screen image-forming block, the display screen image-forming block include for placing the saturating of liquid crystal display
Bright platform (1), down polaroid (3) and backlight (2), the down polaroid (3) and the backlight (2) are successively set on described
Below transparent platform (1), described image acquisition component includes industrial camera (4) and upper polaroid (5), the upper polaroid (5)
It is arranged below the camera lens of the industrial camera (4), the center and the transparent platform (1) of the camera lens of the industrial camera (4)
Center be aligned in vertical direction, the backlight (2) and the industrial camera (4) respectively with industry control mechatronics, the work
Control machine is also electrically connected with liquid crystal display.
2. liquid crystal display detection device according to claim 1, which is characterized in that described image acquisition component includes electricity
Dynamic sliding rail (6), the industrial camera (4) are mounted on the sliding block of the electric sliding rail (6), the electric sliding rail (6) with it is described
Industry control mechatronics.
3. liquid crystal display detection device according to claim 2, which is characterized in that the sliding slot of the electric sliding rail (6)
Upper setting position sensor (7), the position sensor (7) and the industry control mechatronics.
4. liquid crystal display detection device according to claim 1, which is characterized in that the display screen image-forming block includes
At least one side light source (8), the side light source (8) are arranged in the upper surface of the transparent platform (1), and electromechanical with the industry control
Connection.
5. liquid crystal display detection device according to claim 4, which is characterized in that the side light source (8) is strip light
Source.
6. liquid crystal display detection device according to claim 5, which is characterized in that be arranged on the transparent platform (1)
There is the positioning sliding block for determining the liquid crystal display placement location.
7. liquid crystal display detection device according to claim 1-6, which is characterized in that described device includes using
In the display of display testing result, the display and the industry control mechatronics.
8. liquid crystal display detection device according to claim 1-6, which is characterized in that described device includes report
Alert device, the alarm and the industry control mechatronics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201223.4U CN208459716U (en) | 2018-07-27 | 2018-07-27 | A kind of liquid crystal display detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201223.4U CN208459716U (en) | 2018-07-27 | 2018-07-27 | A kind of liquid crystal display detection device |
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| Publication Number | Publication Date |
|---|---|
| CN208459716U true CN208459716U (en) | 2019-02-01 |
Family
ID=65180366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201821201223.4U Active CN208459716U (en) | 2018-07-27 | 2018-07-27 | A kind of liquid crystal display detection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208285A (en) * | 2019-06-14 | 2019-09-06 | 苏州精濑光电有限公司 | A kind of detection device |
| CN111766724A (en) * | 2020-07-17 | 2020-10-13 | Tcl华星光电技术有限公司 | Alignment inspection device |
| CN115598136A (en) * | 2022-10-28 | 2023-01-13 | 深圳市元硕自动化科技有限公司（Cn） | Detection apparatus for screen rubber coating quality |
-
2018
- 2018-07-27 CN CN201821201223.4U patent/CN208459716U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208285A (en) * | 2019-06-14 | 2019-09-06 | 苏州精濑光电有限公司 | A kind of detection device |
| CN111766724A (en) * | 2020-07-17 | 2020-10-13 | Tcl华星光电技术有限公司 | Alignment inspection device |
| CN115598136A (en) * | 2022-10-28 | 2023-01-13 | 深圳市元硕自动化科技有限公司（Cn） | Detection apparatus for screen rubber coating quality |
| CN115598136B (en) * | 2022-10-28 | 2023-08-08 | 深圳市元硕自动化科技有限公司 | Screen gluing quality detection device |
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