CN100568058C - Be applicable to the optical measurement equipment and the method for measurement of display screen off-line total check - Google Patents
Be applicable to the optical measurement equipment and the method for measurement of display screen off-line total check Download PDFInfo
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- CN100568058C CN100568058C CNB2008101098393A CN200810109839A CN100568058C CN 100568058 C CN100568058 C CN 100568058C CN B2008101098393 A CNB2008101098393 A CN B2008101098393A CN 200810109839 A CN200810109839 A CN 200810109839A CN 100568058 C CN100568058 C CN 100568058C
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Abstract
A kind of optical measurement equipment that is applicable to display screen off-line total check, comprise the measuring head, the test control/data processing module that connect successively, and PC, described test control/data processing module and PC unification are loaded on the movable trolleys, described measuring head comprises as the Handheld Division of test probe and auxiliary positioning piece, wherein the plane of the outermost end of auxiliary positioning piece formation is fitted on the surface of display screen when test fully, on the described measuring head trigger is installed.The present invention also provides a kind of optical measurement method that is applicable to display screen off-line total check, and comprising: module is lit a lamp; Start the test pictures of the display screen of module to be measured; The test pictures location; Touch the trigger on the Handheld Division; Finishing monolithic measures; Finish test result and judge record; The mobile test head, beginning is measured next time.The invention has the advantages that: simple in structure, be applicable to the batch testing of the display screen off-line mode of production, easy to operate, and the testing efficiency height.
Description
[technical field]
The invention relates to a kind of display screen optical characteristics measurement equipment and method for measurement of being used for, be meant a kind of optical measurement equipment and method for measurement that is applicable to display screen off-line total check especially.
[background technology]
The optical characteristics of LCD (Liquid crystal display, LCDs) measures according to its test occasion, measuring accuracy demand, and common has:
1) at the detection occasion of a spot of high-precision requirement, this needs to use one to overlap the optical measurement system of building in breadboard complex and expensive often, model such as WESTAR company is the optical measurement system of FPM-520, this system is except having specific optical measurement equipment, also has the very complicated accurate robotization positioning system of a cover, can realize the complicated positioning relation between measurement equipment and the module to be measured, this cover system carries signal generating system usually, come the picture of control die set to show, the characteristics of this type systematic are the automaticity height, test function is perfect, test result precision height, shortcoming then be system huge/costliness, testing efficiency is low, is not suitable for batch testing.
2) the detection occasion that requires at the batch medium accuracy, scheme such as the full inspection of traditional LCD is that a certain optical measurement equipment integration is other to the specific station on the streamline, this station does not provide a module locating device usually, optical measurement equipment also has another locating device that is associated in addition, when arriving this station device that can be positioned after not, module snaps into ad-hoc location, at this moment again optical measurement equipment is moved to certain ad-hoc location of relative module by its locating device, center such as the test axis perpendicular alignmnet module of measurement equipment, then by the operator by some switches adjust display frame and control finish every test, promptly this mode is applicable to the operating type of streamline.
3) optical test equipment that also has a kind of suitable small test chamber to use in addition, the CA-210 of similar Minolta, this type systematic has similar structure shown in Figure 1 usually, comprise main control system with display screen, and the measuring head that is connected with main control system, this kind equipment only provides the measuring head that can simply locate usually, and test result then is presented on the display screen of corresponding main control system continuously.During practical application, need the user that the localization method of module to be measured is provided and, and need seize and do respective handling voluntarily test result for it provides signal system.This equipment characteristic is portable, relative low price, is fit to small test chamber usefulness, but is not suitable for on-the-spot batch testing.
Still have a large amount of LCM (LCD module, LCD module) factory to use the mode of Off-line (off-line) to produce at present, if need batch detection product optical characteristics, and mode 1,3 obviously is not suitable for batch testing.In view of the optical quality of display screen is required to improve day by day, cooperate the Off-Line operating type to provide the full procuratorial organ of a kind of executable optical characteristics case to become the active demand of present LCD module factory.
[summary of the invention]
One of technical matters to be solved by this invention is to provide a kind of optical measurement equipment that is applicable to display screen off-line total check of the Off-Line of cooperation operating type.
Two of technical matters to be solved by this invention is to provide a kind of optical measurement method that is applicable to display screen off-line total check of the Off-Line of cooperation operating type.
The present invention is what one of to solve the problems of the technologies described above by the following technical programs: a kind of optical measurement equipment that is applicable to display screen off-line total check, comprise measuring head, test control/data processing module, and PC, wherein measuring head is connected in test control/data processing module, test control/data processing module is connected in PC, also comprise movable trolleys, described test control/data processing module and PC unification are loaded on the movable trolleys, described measuring head comprises as the Handheld Division of test probe and auxiliary positioning piece, wherein the auxiliary positioning piece comprises that the sleeve and the one that are enclosed within the measuring head head connect the outer end of extending sleeve and outwards be the conical contact site that amplifies, the plane that the outermost end of described contact site forms and the axis of Handheld Division are angled, when measuring head places on the display screen, the outermost end of contact site is fitted on the surface of display screen fully, on the described measuring head trigger is installed.
The plane that the outermost end of described contact site forms and the axis normal of Handheld Division.
The position that the sleeve of described auxiliary positioning piece and contact site have a common boundary is provided with at least one block, Handheld Division backstop in addition, offers at least one screw in this block on the sleeve of auxiliary positioning piece, the bolt of locking in this screw withstands the Handheld Division, makes the auxiliary positioning piece be positioned at the front end of Handheld Division.
The present invention be solve the problems of the technologies described above by the following technical programs two: a kind of optical measurement method that is applicable to display screen off-line total check comprises the following step of carrying out successively:
Step 100: module is lit a lamp, and uses the board monolithic of lighting a lamp to light a lamp, and perhaps uses the high temperature furnace multi-disc to light a lamp simultaneously;
Step 200: the test pictures that starts the display screen of module to be measured;
Step 300: the Handheld Division of operating personnel's handheld test head, utilize the auxiliary positioning piece to finish test pictures location to the display screen of module to be measured;
Step 400: touch the trigger on the Handheld Division, give trigger pip of PC, PC is utilized the control program of operation on it to finish once and is measured;
Step 500: finish monolithic and measure;
Step 600: finish test result and judge record;
Step 700: the mobile test head begins to locate down the test pictures of the display screen of a slice module to be measured, and returns step 400.
Control program in the described step 400 comprises the following step of carrying out successively:
Step 410: wait for trigger pip;
Step 420: receive trigger pip;
Step 430: control hardware is finished once and is measured;
Step 440: judge whether test result is reasonable,,, then return step 430 if unreasonable if rationally, then enter step 450;
Step 450: extract picture eigenwert and picture feature database and compare, judge corresponding picture;
Step 460: record test pictures and test result;
Step 470: judge whether to finish required picture and measure,, then enter step 480,, then return step 430 if do not finish if finish;
Step 480: judgement, logging test results, the test of prompting single is finished, and returns step 410, and circulation is carried out.
The present invention is applicable to that the optical measurement equipment of display screen off-line total check and the advantage of method for measurement are: simple in structure, be applicable to the batch testing of the display screen off-line mode of production, and easy to operate, and the testing efficiency height.
[description of drawings]
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the optical test equipment synoptic diagram that use existing a kind of suitable small test chamber.
Fig. 2 is the optical measurement equipment composition synoptic diagram that the present invention is applicable to display screen off-line total check.
Fig. 3 is the first example structure synoptic diagram of the measuring head of the present invention's optical measurement equipment of being applicable to display screen off-line total check.
Fig. 4 is the second example structure synoptic diagram of the measuring head of the present invention's optical measurement equipment of being applicable to display screen off-line total check.
Fig. 5 is the flowchart that the present invention is applicable to the optical measurement method of display screen off-line total check.
Fig. 6 is a handheld test head vertical direction location synoptic diagram among the present invention.
Fig. 7 to Fig. 9 is for satisfying different test requests, display screen picture displayed figure.
Figure 10 is the software flow pattern that cooperates the execution flow process of the optical measurement method that is applicable to display screen off-line total check.
[embodiment]
Please consult Fig. 1 simultaneously, the present invention is applicable to that the optical measurement equipment of display screen off-line total check mainly is made up of three parts: measuring head 10, test control/data processing module 20, PC (PC) 30 and movable trolleys 40.Wherein measuring head 10 is connected in test control/data processing module 20, test control/data processing module 20 is connected in PC30, and for adapting to the batch testing demand of the Off-line mode of production, test control/data processing module 20 is loaded on the movable trolleys 40 with PC30 is unified.
As shown in Figure 3, be the structural representation of an embodiment of measuring head 10, this measuring head 10 comprises Handheld Division 12, trigger (figure does not show) and the auxiliary positioning piece 16 as test probe.Wherein auxiliary positioning piece 16 comprises the sleeve 162 that is enclosed within measuring head Handheld Division 12 front ends, and one connects the outer end of extending sleeve 162 and outwards is the conical contact site 164 that amplifies, the plane that the outermost end of this contact site 164 forms and the axis normal of Handheld Division 12, thereby when this measuring head 10 places on the display screen, the outermost end of contact site 164 is fitted on the surface of display screen fully, thereby Handheld Division 12 is perpendicular to display screen.
Wherein the sleeve 162 of auxiliary positioning piece 16 is provided with at least one block 166 with the position that contact site 164 has a common boundary, Handheld Division 12 backstops are in this block 166, be unlikely to skid off by contact site 164, in addition, offer at least one screw on the sleeve 162 of auxiliary positioning piece 16, withstand Handheld Division 12 by the bolt 168 of locking in this screw, thereby make auxiliary positioning piece 16 be positioned at the front end of Handheld Division 12.
See also Fig. 4, it is the structural representation of another embodiment of measuring head 10, the difference of itself and above-mentioned measuring head 10 only is, the plane that the outermost end of contact site 164 forms and the axis out of plumb of Handheld Division 12, other structures are identical, be used for and need Handheld Division 12 to become the occasion of other angle orientation with display screen, as realize the similar test that shows the angle up and down.
Circuit board is realized handling to the control of measuring head 10 with to the electric signal that measuring head 10 sends.In addition, for native system, also realize and PC 30 between communication function.This test control/data processing module 20 can adopt existing various processing module.
30 of PC are mainly used in the driving of test control/data processing module 20 and control software at the optic test of this optical measurement device design, test process is carried out meticulous control, and test result processed, finish specific optical characteristic test, judgement and storage requirements.
See also Fig. 5, when carrying out optical measurement, comprise the steps: successively
Step 100: module is lit a lamp, and can use the board monolithic of lighting a lamp to light a lamp, and perhaps uses the high temperature furnace multi-disc to light a lamp simultaneously;
Step 200: the test pictures that starts the display screen of module to be measured;
Step 300: the Handheld Division 12 of hand-held this measuring head 10 of operating personnel, utilize auxiliary positioning piece 16 to finish test pictures location to the display screen of module to be measured;
Step 400: touch the trigger on the Handheld Division 12, give 30 1 trigger pips of PC, PC 30 utilizes the control program of operation on it to finish once and measures, measuring head 10 inside comprise an optical module, the light that enters is converted to the electric signal that comprises particular optical information, the implementation of this part is very ripe, therefore, can adopt existing optical module, on this measuring head 10 trigger is installed, then after operating personnel's handheld test head 10 is finished the location, can use the same hand to finish trigger action, start one time optic test.Can vacate the another hand like this and finish other operations, such as the hand-held tag scan device of another, the relevent information of coming the screen to be measured of typing simultaneously;
Step 500: finish monolithic and measure;
Step 600: finish test result and judge record;
Step 700: mobile test 10 begins to locate down the test pictures of the display screen of a slice module to be measured, and returns step 400.
The present invention is by the orientation problem of handheld test head 10 in the step 300 in the following proposal solution test process.
One, vertical direction location:
As shown in Figure 6, be to use the measuring head 10 of first embodiment among the present invention to finish the location of Handheld Division 12 and the vertical direction of display screen 50, wherein the outermost end of the contact site 164 of auxiliary positioning piece 16 is fitted on the surface of display screen 50 fully, thereby Handheld Division 12 is perpendicular to display screen 50.
Two: horizontal direction location (realizing display surface specified point position is measured):
By allowing display screen show specific picture, as shown in Figures 7 and 8, be that the central point of display screen shows anchor point 60, and cooperate auxiliary positioning piece 16 be adjacent to display screen surperficial the time the profile horizontal location that realizes testing the display surface central point;
The profile of location picture cooperates auxiliary positioning piece 16 that the location limit is provided, and its picture shape is not limited to diagram, also can be other pictures that need test;
In addition, for realizing different test purposes,, then can realize by the color that picture is located in conversion such as the chromaticity coordinates of red picture central point;
In addition, need locate the demand of a plurality of points when realizing the test of similar homogeneity, can promptly separately show a plurality of anchor points 60 on the display screen by display frame is shown by scheme shown in Figure 9.
The present invention solves the problem that many pictures measure simultaneously by following proposal.
Need to measure complete white complete black two pictures and RGB (red when test comparison degree and color saturation respectively, green, and blue, RGB) three look pictures, promptly at this moment not only picture needs to solve the corresponding relation problem of how determining between test result and test pictures.
Traditional optical measurement equipment to the settling mode of this problem is, the integrated signal generation apparatus of testing apparatus, the demonstration and the switching of this device control picture, realize the synchronized relation that testing apparatus action and picture switch thus, therefore traditional optical measurement system exists between display screen and testing apparatus and is fixedly coupled, and this also is to have limited the ambulant major reason of testing apparatus.
The present invention provides following solution for realize the movability of testing apparatus perfectly.
Optical measurement equipment with signal equipment takes place to be separated fully.During test, signal generation apparatus just mechanically allows the display frame of display screen automatically switch by certain speed on the one hand; Optical measurement equipment of the present invention on the other hand then measures continuously to display screen to be measured, and each test result is all sent to the control software of PC 30.The control software is analyzed each test result, following certain logic in conjunction with the feature of each test pictures self (such as luminance difference of black and white screen etc.) judges, after test pictures is through circulation for several times, control program can obtain the test value of required a plurality of pictures, and finishes the calculating of final required test value.Only needing to make to comprise respectively the display frame that circulation is switched into R/G/B centralized positioning piece three pictures can use same scheme to solve the color saturation test problem.
The test macro that provides at optical test equipment of the present invention, for simplifying test jobs and improving testing efficiency, realize the mode of operation that a key measures, in the aforesaid operations step judgement of test result and the equal robotization of record of test result are finished, realize by establishment control software, see also Figure 10, the control program in the above-mentioned steps 400 comprises the following step of carrying out successively:
Step 410: wait for trigger pip;
Step 420: receive trigger pip;
Step 430: control hardware is finished once and is measured;
Step 440: judge whether test result is reasonable,,, then return step 430 if unreasonable if rationally, then enter step 450;
Step 450: extract picture eigenwert and picture feature database and compare, judge corresponding picture;
Step 460: record test pictures and test result;
Step 470: judge whether to finish required picture and measure,, then enter step 480,, then return step 430 if do not finish if finish;
Step 480: judgement, logging test results, the test of prompting single is finished, and returns step 410, and circulation is carried out.
Though more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than be used for qualification to scope of the present invention; those of ordinary skill in the art are in the modification and the variation of the equivalence of doing according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.
Claims (5)
1. optical measurement equipment that is applicable to display screen off-line total check, comprise measuring head, test control/data processing module, and PC, wherein measuring head is connected in test control/data processing module, test control/data processing module is connected in PC, it is characterized in that: also comprise movable trolleys, described test control/data processing module and PC unification are loaded on the movable trolleys, described measuring head comprises as the Handheld Division of test probe and auxiliary positioning piece, wherein the auxiliary positioning piece comprises that the sleeve and the one that are enclosed within measuring head Handheld Division front end connect the outer end of extending sleeve and outwards be the conical contact site that amplifies, the plane that the outermost end of described contact site forms and the axis of Handheld Division are angled, when measuring head places on the display screen, the outermost end of contact site is fitted on the surface of display screen fully, on the described measuring head trigger is installed.
2. the optical measurement equipment that is applicable to display screen off-line total check as claimed in claim 1 is characterized in that: the plane that the outermost end of described contact site forms and the axis normal of Handheld Division.
3. the optical measurement equipment that is applicable to display screen off-line total check as claimed in claim 1, it is characterized in that: the position that the sleeve of described auxiliary positioning piece and contact site have a common boundary is provided with at least one block, Handheld Division backstop is in this block, in addition, offer at least one screw on the sleeve of auxiliary positioning piece, the bolt of locking in this screw withstands the Handheld Division, makes the auxiliary positioning piece be positioned at the front end of Handheld Division.
4. the optical measurement method that is applicable to display screen off-line total check that uses the optical measurement equipment that is applicable to display screen off-line total check as claimed in claim 1 to carry out is characterized in that: comprise the following step of carrying out successively:
Step 100: module is lit a lamp, and uses the board monolithic of lighting a lamp to light a lamp, and perhaps uses the high temperature furnace multi-disc to light a lamp simultaneously;
Step 200: the test pictures that starts the display screen of module to be measured;
Step 300: the Handheld Division of operating personnel's handheld test head, utilize the auxiliary positioning piece to finish test pictures location to the display screen of module to be measured;
Step 400: touch the trigger on the Handheld Division, give trigger pip of PC, PC is utilized the control program of operation on it to finish once and is measured;
Step 500: finish monolithic and measure;
Step 600: finish test result and judge record;
Step 700: the mobile test head begins to locate down the test pictures of the display screen of a slice module to be measured, and returns step 400.
5. the optical measurement method that is applicable to display screen off-line total check as claimed in claim 4 is characterized in that: the control program in the described step 400 comprises the following step of carrying out successively:
Step 410: wait for trigger pip;
Step 420: receive trigger pip;
Step 430: control hardware is finished once and is measured;
Step 440: judge whether test result is reasonable,,, then return step 430 if unreasonable if rationally, then enter step 450;
Step 450: extract picture eigenwert and picture feature database and compare, judge corresponding picture;
Step 460: record test pictures and test result;
Step 470: judge whether to finish required picture and measure,, then enter step 480,, then return step 430 if do not finish if finish;
Step 480: judgement, logging test results, the test of prompting single is finished, and returns step 410, and circulation is carried out.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014048040A1 (en) * | 2012-09-26 | 2014-04-03 | 同方威视技术股份有限公司 | Trigger device of optical detector and optical detector with the trigger device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101887672A (en) * | 2009-12-25 | 2010-11-17 | 四川虹欧显示器件有限公司 | Method, device and system for testing plasma display panel (PDP) |
| CN103257469B (en) * | 2013-05-22 | 2015-09-30 | 深圳市华星光电技术有限公司 | Display base plate quality detection device and detection method |
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Effective date of registration: 20180830 Address after: 350000 1, third, fourth floor, No. 6, Ru Jiang Xi Road, Mawei District, Fuzhou, Fujian Patentee after: CPT DISPLAY TECHNOLOGY (SHENZHEN)CO., LTD. Address before: 350015 77, science and Technology Park, Mawei District, Fuzhou, Fujian Patentee before: Fujian Huaying Display Technology Co., Ltd. |
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