CN104458207A - Liquid crystal display panel optical detecting system - Google Patents
Liquid crystal display panel optical detecting system Download PDFInfo
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- CN104458207A CN104458207A CN201310432317.8A CN201310432317A CN104458207A CN 104458207 A CN104458207 A CN 104458207A CN 201310432317 A CN201310432317 A CN 201310432317A CN 104458207 A CN104458207 A CN 104458207A
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- liquid crystal
- crystal panel
- described image
- collecting device
- image collecting
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Abstract
The invention discloses a liquid crystal display panel optical detecting system. The liquid crystal display panel optical detecting system is designed to solve the problems that an existing image acquisition device is fixed and inflexible in adjustment, and a single camera cannot meet the size and precision demands of liquid crystal display panels. The liquid crystal display panel optical detecting system comprises an image collection device and a three-dimensional adjusting device for enabling the image collection device to move in a three-dimensional space, the shooting demands of the single camera for the liquid crystal display panels of different sizes and precisions are met easily, and the liquid crystal display panel optical detecting system has the advantages of being simple in structure and convenient to realize.
Description
Technical field
The present invention relates to display field, particularly relate to the Systems for optical inspection of liquid crystal display.
Background technology
Liquid crystal panel Systems for optical inspection carries out requisite visual plant in optical detection to liquid crystal panel during liquid crystal panel industry is produced.But existing liquid crystal panel Systems for optical inspection, camera object distance all immobilizes, the liquid crystal panel that single camera can only realize the finite size fixed detects, but along with the raising of the size to liquid crystal panel, precision and efficiency, the fixed camera of separate unit, obviously can not meet the requirement of detectability, accuracy of detection and detection efficiency.
Summary of the invention
(1) goal of the invention
For the problems referred to above, the invention provides a kind of image collecting device can move in space, to meet the liquid crystal panel Systems for optical inspection of different detection demands.
(2) technical scheme
For reaching above-mentioned purpose, liquid crystal panel Systems for optical inspection of the present invention, comprises image collecting device, also comprises the three-dimensional adjusting device making the movement in three dimensions of described image collecting device.
Preferably, three-dimensional adjusting device comprise arranging described image collecting device mounting structure, in order to make described image collecting device in the X-axis direction movement X to camera adjusting mechanism, in order to make described image collecting device in the Y-axis direction movement Y-direction camera adjusting mechanism, in order to make described image collecting device in the Z-axis direction movement Z-direction camera adjusting mechanism and make described image collecting device carry out the micromatic setting of the secondary adjustment in angle and orientation in its position;
Wherein X-axis, Y-axis and Z axis form three-dimensional cartesian coordinate system.
Preferably, described X is the linear motor driving described image collecting device and described mounting structure in correspondence direction movement to camera adjusting mechanism, Y-direction camera adjusting mechanism and Z-direction camera adjusting mechanism.
Preferably, operator's console and back lighting device is also comprised;
Described operator's console, in order to hold liquid crystal panel to be detected, is arranged with described image collecting device vertical separation;
Described back lighting device, is arranged on described operator's console inner with thinking that described liquid crystal panel to be detected provides light source.
Preferably, image acquisition control device is also comprised;
Described image acquisition control device comprises detected parameters setting unit, graphics processing unit, test and monitoring unit and signaling control unit;
Described detected parameters setting unit is in order to pre-set and to store detected parameters;
Described graphics processing unit is connected with described image collecting device, receives and processes the image that described image collecting device gathers, extracting the defect information in described image;
Described test and monitoring unit is in order to monitor and to export the operation conditions of each device in liquid crystal panel Systems for optical inspection;
Described signaling control unit is in order to control the switching of the beginning of the detection of described liquid crystal panel to be detected, closedown and detected image.
Preferably, described image acquisition control device also comprises network interface, and described network interface is wireless or wireline interface, carries out data interaction in order to described image acquisition control device and the external world.
Preferably, also comprise with thinking that liquid crystal panel Systems for optical inspection provides the uninterrupted power source of power supply.
Preferably, described image collector is set to planar array scanning CCD camera.
Preferably, described operator's console is provided with the fixture of fixing liquid crystal panel to be detected.
(3) beneficial effect of the present invention
Liquid crystal panel Systems for optical inspection of the present invention, by the setting of three-dimensional adjusting device, image acquisition units can be made to move in spatial dimension, thus can according to the precision detected, detect the size of panel and the sharpness of required shooting image, the position of adjustment image collecting device, thus obtain required detected image, compared to existing technology, image collecting device described in the present invention can in the scope allowing motion, move to three-dimensional any point, meet the size in testing process and accuracy requirement, decrease the demand to camera quantity, there is structure simultaneously simple, realize easy advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation of three-dimensional adjusting device described in the embodiment of the present invention;
Fig. 2 is the structural representation of the liquid crystal panel Systems for optical inspection described in the embodiment of the present invention.
Embodiment
Below in conjunction with Figure of description and embodiment, the present invention is described further.
The present embodiment liquid crystal panel Systems for optical inspection, comprises image collecting device, also comprises the three-dimensional adjusting device making the movement in three dimensions of described image collecting device.Described image collecting device can adopt in existing equipment the video camera or camera that meet accuracy requirement, concrete preferential employing panel array CCD camera.CCD---Charge-coupled Device can be called ccd image sensor.CCD is a kind of semiconductor devices, optical image can be converted into digital signal.
The structure of described three-dimensional adjusting device can have multiple, and concrete as the guide rail comprising a lifter and lifter as described in making moves horizontally, the end of lifter is provided with the installation position of image collecting device; By adjustment lifter can realize the oscilaltion of image collecting device in vertical plane, by making the movement of described lifter in level, realization be the movement of image collecting device in surface level.But in the present embodiment for further simplifying structure, reducing hardware cost, provide following structure:
As shown in Figure 1, three-dimensional adjusting device comprise arranging described image collecting device mounting structure, in order to make described image collecting device in the X-axis direction movement X to camera adjusting mechanism 10, in order to make described image collecting device in the Y-axis direction movement Y-direction camera adjusting mechanism 11, in order to make described image collecting device in the Z-axis direction movement Z-direction camera adjusting mechanism 12 and make described image collecting device carry out the micromatic setting of the secondary adjustment in angle and orientation in its position;
Wherein X-axis, Y-axis and Z axis form three-dimensional cartesian coordinate system.
In the present embodiment the adjusting mechanism in X-axis, Y-axis and Z axis three directions is carried out image acquisition units first adjustment, thus realize the location of image collecting device any point in movable space, secondary adjustment is carried out again by micromatic setting, first adjustment is compared in secondary adjustment, the precision of adjustment is higher, and can be used for the adjustment etc. of the image capturing angle realizing image collecting device.Adopt first adjusting mechanism and micromatic setting two adjust structure in the present embodiment, further easy realization adjustment, reduces field adjustable difficulty, improve efficiency and the security of execute-in-place, and the precision of adjustment is high.
Described X is the linear motor driving described image collecting device and described mounting structure in correspondence direction movement to camera adjusting mechanism 10, Y-direction camera adjusting mechanism 11 and Z-direction camera adjusting mechanism 12.Adopt the adjusting mechanism that linear motor this structure is simple, cost is low, stable structure forms X-axis, Y-axis and Z axis, structure is simple, cost is low and the advantage such as stable in same having.
Described liquid crystal panel Systems for optical inspection also comprises operator's console and back lighting device;
Described operator's console, in order to hold liquid crystal panel to be detected, is arranged with described image collecting device vertical separation, the replacing of convenient operation platform and adjustment; Usual described image collecting device is arranged in perpendicular, and described operator's console is arranged in surface level.It is a liquid crystal panel to be detected that described operator's console at least can hold, if as required can also the liquid crystal panel of accommodating 2, more than 3 or 3.
Described back lighting device, is arranged on described operator's console inner with thinking that described liquid crystal panel to be detected provides light source.Described back lighting device is with thinking that liquid crystal panel to be detected provides display light source.If liquid crystal panel to be detected and backlight combine, then provide back lighting device without the need to again other.Described back lighting device can be divided into CCFL(cold cathode fluorescent lamp according to the type of light-emitting component in the present embodiment) backlight, LED(light emitting diode) backlight and laser backlight.
Described in concrete implementation process, liquid crystal panel Systems for optical inspection also comprises image acquisition control device; Described in concrete implementation process, image acquisition control device preferentially adopts the industry control unit of industrial computer or one or more industrial computer composition;
Described image acquisition control device comprises detected parameters setting unit, graphics processing unit, test and monitoring unit and signaling control unit;
Described detected parameters setting unit is in order to pre-set and to store detected parameters;
Described graphics processing unit is connected with described image collecting device, receives and processes the image that described image collecting device gathers, extracting the defect information in described image;
Described test and monitoring unit is in order to monitor and to export the operation conditions of each device in liquid crystal panel Systems for optical inspection; The operation comprising the equipment such as operator's console, three-dimensional adjusting device of concrete monitoring;
Described signaling control unit is in order to control the switching of the beginning of the detection of described liquid crystal panel to be detected, closedown and detected image.
Above-mentioned detected parameters setting unit, graphics processing unit, test and monitoring unit and signaling control unit correspondence is all realized by the corresponding device in image acquisition control device, if described image collector is set to industrial computer group, a possibility hardware is for realizing several functions, thus a hardware module is shared by above-mentioned multiple functional unit.In concrete implementation procedure, above-mentioned detected parameters setting unit, graphics processing unit, test and monitoring unit and signaling control unit can the parts such as the corresponding single-chip microcomputer completing corresponding function, DSP digital signal controller or a PLC.
Signaling control unit described in concrete implementation procedure also can in order to according to the structure of monitoring of described test and monitoring unit to alarm unit output alarm signal.Described alarm unit can the device such as buzzing, pilot lamp.Signaling control unit described in concrete implementation procedure, send be pulse signal or TTL signal to carry out the transmission of signal, adopt above-mentioned signal to transmit steering order.
Described image acquisition control device also comprises network interface, and described network interface is wireless or wireline interface, carries out data interaction in order to described image acquisition control device and the external world.Concrete described network interface can be Ethernet interface, carries out Signal transmissions according to ICP/IP protocol and the external world.The content transmitted comprises testing result, the operation conditions of each equipment and the renewal of system operating software and upgrading etc.
Preferably, the liquid crystal panel Systems for optical inspection described in the present embodiment also comprises with thinking that liquid crystal panel Systems for optical inspection provides the uninterrupted power source of power supply.By the setting of uninterrupted power source, can prevent system power failure from cannot normally work, by the setting of uninterrupted power source, continuous firing when can ensure external power source fault, the time length of continuous firing can decide configuration according to factors such as the sizes of the power consumption of system and uninterrupted power source.
Described operator's console is provided with the fixture of fixing liquid crystal panel to be detected.By arranging fixture on described operator's console, can better fix liquid crystal panel to be detected, described fixture can be polytype, is preferably JIG fixture.
Below provide and provide an example in conjunction with diagram, specific as follows:
As shown in Figure 2, the present embodiment liquid crystal panel Systems for optical inspection comprises image collecting device 3, three-dimensional adjusting device 4, operator's console 2, back lighting device 1, image acquisition control device 5, display 6, UPS uninterrupted power source 7, printer 8, alarm lamp 9.
Image collecting device 3 is in order to the to be detected liquid crystal panel of shooting on operator's console 2, described three-dimensional adjusting device 4 is in order to realize the locus of the described image collecting device 3 of adjustment, described back lighting device is under the control of described image acquisition control device 5, open or close, for liquid crystal panel to be detected provides light source.Described image collecting device 3 gathers the transmission of image by the carrying out of Camera Link or Ethernet and described image acquisition control device.Described alarm lamp 9 is reported to the police in order to the external form with light; Described printer 8 can be used for printing the operation conditions of the defect information of the liquid crystal panel detected or the equipment of monitoring printing.In concrete implementation procedure, described image acquisition units is under the control of described three-dimensional adjusting device, in order to according to the size of liquid crystal panel and the demand of precision, adjustment locus, by single this or multi collect split, to complete the capture of liquid crystal panel picture, thus carry out the detection of image.In the middle of traditional equipment, due to the size of liquid crystal panel and the demand of precision, multiple stage image collecting device may be needed to carry out capture, equipment volume will be caused so huge, institute takes up space large, and equipment cost is relatively high, and the liquid crystal panel Systems for optical inspection described in the present embodiment is by the setting of three-dimensional adjusting device, meeting of the easy size realizing liquid crystal panel and the different demands of precision, thus have that structure is simple, equipment cost is low, equipment effective rate of utilization advantages of higher.This equipment quotes irrigation crystal section or the module set section of liquid crystal panel production, is suitable for being combined in existing production line, thus compatible strong.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (9)
1. a liquid crystal panel Systems for optical inspection, comprises image collecting device, it is characterized in that, also comprises the three-dimensional adjusting device making the movement in three dimensions of described image collecting device.
2. liquid crystal panel Systems for optical inspection according to claim 1, it is characterized in that, three-dimensional adjusting device comprise arranging described image collecting device mounting structure, in order to make described image collecting device in the X-axis direction movement X to camera adjusting mechanism, in order to make described image collecting device in the Y-axis direction movement Y-direction camera adjusting mechanism, in order to make described image collecting device in the Z-axis direction movement Z-direction camera adjusting mechanism and make described image collecting device carry out the micromatic setting of the secondary adjustment in angle and orientation in its position;
Wherein X-axis, Y-axis and Z axis form three-dimensional cartesian coordinate system.
3. liquid crystal panel Systems for optical inspection according to claim 2, it is characterized in that, described X is the linear motor driving described image collecting device and described mounting structure in correspondence direction movement to camera adjusting mechanism, Y-direction camera adjusting mechanism and Z-direction camera adjusting mechanism.
4. the liquid crystal panel Systems for optical inspection according to claim 1,2 or 3, is characterized in that, also comprises operator's console and back lighting device;
Described operator's console, in order to hold liquid crystal panel to be detected, is arranged with described image collecting device vertical separation;
Described back lighting device, is arranged on described operator's console inner with thinking that described liquid crystal panel to be detected provides light source.
5. liquid crystal panel Systems for optical inspection according to claim 4, is characterized in that, also comprises image acquisition control device;
Described image acquisition control device comprises detected parameters setting unit, graphics processing unit, test and monitoring unit and signaling control unit;
Described detected parameters setting unit is in order to pre-set and to store detected parameters;
Described graphics processing unit is connected with described image collecting device, receives and processes the image that described image collecting device gathers, extracting the defect information in described image;
Described test and monitoring unit is in order to monitor and to export the operation conditions of each device in liquid crystal panel Systems for optical inspection;
Described signaling control unit is in order to control the switching of the beginning of the detection of described liquid crystal panel to be detected, closedown and detected image.
6. liquid crystal panel Systems for optical inspection according to claim 5, it is characterized in that, described image acquisition control device also comprises network interface, and described network interface is wireless or wireline interface, carries out data interaction in order to described image acquisition control device and the external world.
7. liquid crystal panel Systems for optical inspection according to claim 4, is characterized in that, also comprises with thinking that liquid crystal panel Systems for optical inspection provides the uninterrupted power source of power supply.
8. liquid crystal panel Systems for optical inspection according to claim 4, is characterized in that, described image collector is set to planar array scanning CCD camera.
9. liquid crystal panel Systems for optical inspection according to claim 4, is characterized in that, described operator's console is provided with the fixture of fixing liquid crystal panel to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432317.8A CN104458207A (en) | 2013-09-22 | 2013-09-22 | Liquid crystal display panel optical detecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432317.8A CN104458207A (en) | 2013-09-22 | 2013-09-22 | Liquid crystal display panel optical detecting system |
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| CN104458207A true CN104458207A (en) | 2015-03-25 |
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| CN201310432317.8A Pending CN104458207A (en) | 2013-09-22 | 2013-09-22 | Liquid crystal display panel optical detecting system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104765172A (en) * | 2015-04-27 | 2015-07-08 | 京东方科技集团股份有限公司 | Liquid crystal screen detection device and method |
| CN110849587A (en) * | 2018-08-21 | 2020-02-28 | 深圳市汇顶科技股份有限公司 | Light source tester, method, device, equipment and storage medium |
| CN111366071A (en) * | 2018-12-26 | 2020-07-03 | 大族激光科技产业集团股份有限公司 | Visual positioning device for large-breadth product |
-
2013
- 2013-09-22 CN CN201310432317.8A patent/CN104458207A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104765172A (en) * | 2015-04-27 | 2015-07-08 | 京东方科技集团股份有限公司 | Liquid crystal screen detection device and method |
| CN110849587A (en) * | 2018-08-21 | 2020-02-28 | 深圳市汇顶科技股份有限公司 | Light source tester, method, device, equipment and storage medium |
| CN111366071A (en) * | 2018-12-26 | 2020-07-03 | 大族激光科技产业集团股份有限公司 | Visual positioning device for large-breadth product |
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Application publication date: 20150325 |