CN102004337B - Liquid crystal display (LCD) test fixture and test method thereof - Google Patents

Liquid crystal display (LCD) test fixture and test method thereof Download PDF

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Publication number
CN102004337B
CN102004337B CN 201010501223 CN201010501223A CN102004337B CN 102004337 B CN102004337 B CN 102004337B CN 201010501223 CN201010501223 CN 201010501223 CN 201010501223 A CN201010501223 A CN 201010501223A CN 102004337 B CN102004337 B CN 102004337B
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CN
China
Prior art keywords
test
circuit board
board
clamping plate
testing circuit
Prior art date
Application number
CN 201010501223
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Chinese (zh)
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CN102004337A (en
Inventor
乔伟雄
郭斌
饶纯
Original Assignee
无锡博一光电科技有限公司
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Application filed by 无锡博一光电科技有限公司 filed Critical 无锡博一光电科技有限公司
Priority to CN 201010501223 priority Critical patent/CN102004337B/en
Publication of CN102004337A publication Critical patent/CN102004337A/en
Application granted granted Critical
Publication of CN102004337B publication Critical patent/CN102004337B/en

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Abstract

The invention relates to a liquid crystal display (LCD) test fixture and a test method thereof. The LCD test fixture comprises a test bench, a test circuit board arranged on the test bench and a clamping mechanism rotatably arranged on the test bench; and in the test process, an electric connection test is realized by overturning the clamping mechanism to clamp an LCD to be tested and the test circuit board. The test method of the LCD test fixture comprises the following steps: 1, overturning and opening the clamp plate of the clamping mechanism on the test bench; 2, placing the LCD to be tested on the test bench, and placing the circuit board of the LCD to be tested on the test circuit board correspondingly so that contacts on the circuit board of the LCD to be tested are in one-to-one correspondence with the test points on the test circuit board; 3, overturning the clamp plate, then covering the clamp plate on the test bench, pressing the clamp plate above the circuit board of the LCD to be tested and the test circuit board; and 4, utilizing the clamp plate to clamp the contacts on the circuit board of the LCD to be tested and the test points on the test circuit board so as to enable the contacts to be contacted and conducted with the test points, and carrying out test signal transmission, thus realizing test operations.

Description

LCD screen measurement jig and method of testing thereof
Technical field
The present invention relates to a kind of measurement jig, relate in particular to a kind of LCD screen measurement jig and method of testing thereof.
Background technology
Continuous development along with flat panel display; LCD with its low-voltage, little power consumption, panelized, miniature portable, be easy to advantages such as circuit is integrated and constantly satisfy diversified day by day functional requirement of people and individual demand; Be widely used in the various electronic products, like mobile phone, MP3, digital camera, notebook computer or the like.Usually the LCD screen all can be lighted it before encapsulation procedure and wait test, produced test signal through measurement jig, was sent in the LCD screen, to detect the quality that LCD shields.Existing LCD screen measurement jig mainly adopts the concora crush mode to contact conducting when testing and tests; Yet the bad control of snap-in force of existing this kind concora crush mode; It is inaccurate that test not exclusively appears in contact that snap-in force is too small when being prone to make test, excessive then be prone to produce damage risk; And existing measurement jig structure is comparatively complicated, and operability is bad.
Summary of the invention
The purpose of this invention is to provide a kind of LCD screen measurement jig, simple in structure, it adopts and rotates clamping mode realization electrical connection test.
Another object of the present invention is to provide a kind of method of testing of above-mentioned LCD screen measurement jig, simple to operate, convenient.
For realizing above-mentioned purpose; The present invention provides a kind of LCD screen measurement jig; Comprise: test board, place testing circuit board on the test board, rotate and be installed on the clamp system on the test board; During test, LCD screen to be measured is realized being electrically connected test with the clamping of testing circuit board through the upset clamp system.
Said test board table top is provided with storage tank with ccontaining testing circuit board, is provided with connector in the test board, and this connector electrically connects through winding displacement and testing circuit board.
Relative both sides respectively are provided with fluting on the table top of said test board; Testing circuit board places on the test board table top between the fluting of both sides; Clamp system comprises a fixed head and the end clamping plate on the fixed head that are rotationally connected; Fixed head is located on the fluting of test board one side, and the fluting of the relative opposite side of test board is provided with to clamp and buckles, and is used for fixing the clamping plate free end.
Said clamping plate are connected on the fixed head test board upset relatively through the one of which end and make opening and closing movement, thereby realize the upset folding of clamp system on test board; Across above the measuring point of testing circuit board, the point position of corresponding testing circuit board was provided with filler strip on the lower surface of clamping plate when clamping plate covered on the test board, and the contact that is used to compress LCD screen circuit board to be measured contacts the realization conducting with the measuring point of testing circuit board.
Said clamping button comprises and is installed in the base on the fluting and is located at the buckle on the base that clamping plate free end lower surface corresponding clip links closely and is provided with stopper slot, takes on the base through the stopper slot button, and buckle is fastened on the clamping plate free end and clamping plate are fixed on the test board.
Simultaneously, the present invention provides a kind of method of testing of above-mentioned LCD screen measurement jig, comprises that step is following:
Step 1, the clamping plate of clamp system are overturn on test board open;
Step 2, LCD to be measured screen is placed on the test board, the circuit board correspondence of LCD screen to be measured places on the testing circuit board, the measuring point on the corresponding one by one testing circuit board in contact on the circuit board of LCD screen to be measured;
Step 3, the upset of the clamping plate of clamp system is covered on the test board, is pressed on the circuit board of LCD screen to be measured and the top of testing circuit board;
Measuring point on the contact of the circuit board of step 4, LCD to be measured screen and the testing circuit board contacts conducting through the clamping of clamping plate, carries out the test signal transmission, the realization test job.
When step 3 middle clamp plate covered on the test board, the filler strip of clamping plate lower surface is corresponding to be pressed together on the top of measuring point contraposition place of contact and the testing circuit board of LCD screen circuit board; Being pressed on the circuit board of LCD screen to be measured and the free end of the clamping plate above the testing circuit board is fixed on the test board through clamping fastening.
Measuring point through testing circuit board in the step 4 contacts conducting with the contraposition of the contact of LCD screen circuit board to be measured, and the connector of being located in the test board transfers to the circuit board that LCD to be measured shields through winding displacement, testing circuit board successively with test signal, tests.
The invention has the beneficial effects as follows: LCD screen measurement jig of the present invention; Simple in structure; The rotation clamping mode of the clamp system through its clamping force of may command makes LCD screen circuit board be electrically connected with testing circuit board, realizes test, and can avoid causing LCD to shield the risk of damage; The method of testing of this LCD screen measurement jig, simple to operate, test convenient reliable.
In order further to understand characteristic of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet accompanying drawing only provide reference and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Below in conjunction with accompanying drawing, describe in detail through specific embodiments of the invention, will make technical scheme of the present invention and other beneficial effects obvious.
In the accompanying drawing,
Fig. 1 is the structural representation of LCD screen measurement jig of the present invention (clamping plate open mode);
Fig. 2 is the working state schematic representation of LCD screen measurement jig of the present invention;
Fig. 3 is the method for testing process flow diagram of LCD screen measurement jig of the present invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the present invention is described in detail.
Shown in Fig. 1-2; LCD screen measurement jig of the present invention; Comprise: test board 2, place testing circuit board 4 on the test board 2, rotatablely be installed on the clamp system 6 on the test board 2; During test, LCD screen 10 to be measured is realized being electrically connected test with the clamping of testing circuit board 4 through the upset clamp system.
Corresponding testing circuit board 4 also is provided with storage tank (not indicating) on said test board 2 table tops, and testing circuit board 4 location are placed in this storage tank.Be provided with connector (not shown) in the test board 2, it electrically connects through winding displacement 8 and testing circuit board 4, and connector and then the supply hub 20 through test board 2 one sides connect power supplys.On the table top of test board 2 relatively both sides also respectively be provided with fluting 21,22, testing circuit board 4 in both sides fluting 21, place between 22 on test board 2 table tops.Clamp system 6 comprises fixed head 61 and clamping plate 62, and fixed head 61 slidably is located on the fluting 21 of test board 2 one sides.In the present embodiment; These clamping plate 62 are the strip body; Be provided with two fixed heads 61 that are spaced apart, clamping plate 62 are rotatably connected between two fixed heads 61 through the one of which end, and these clamping plate 62 can be made the rotary movement of 180 degree along its link; Thereby opening and closing movement is made in test board 2 upsets relatively on test board 2, realizes the upset folding of clamp system 6 on test board 2.The fluting 22 of test board 2 relative opposite sides is provided with to clamp buckles 23, is used for fixing clamping plate 61 free ends.Wherein clamp button 23 and comprise and be installed in the base 231 on the fluting 22 and be located at the buckle 232 on the base 231, clamping plate 62 free end lower surface corresponding clips link closely and 23 are provided with stopper slot 621.When clamping plate 62 upset covers 2 last times of test board, clamping plate 62 are taken on the base 231 through 621 buttons of the stopper slot on its free end across above the measuring point 40 of testing circuit board 4, and buckle 232 is fastened on the clamping plate 62 and clamping plate 62 free ends are fixed on the test board 2.
Also be provided with filler strip 622 on the said clamping plate 62, this filler strip 622 adopts soft material to process.Filler strip 622 is fixed on measuring point 40 positions of the corresponding testing circuit board 4 of clamping plate 62 lower surfaces through viscose glue etc.When testing on the LCD screen 10 placement test boards 2 to be measured; LCD to be measured shields the corresponding contraposition in contact on 10 circuit boards 11 on the measuring point 40 of testing circuit board 4; Pressing through clamping plate 62 makes it, and both contact conducting, and at this moment, the pressing of clamping plate 62 is actual to be the contact pressing through filler strip 622; Can be beneficial to control pressing dynamics like this, when avoiding pressing LCD to be measured shielded 10 circuit boards 11 and cause damage.In addition; The difference of placement location was adjusted its relative position when clamp system 6 can be tested according to difference LCD screen 10 to be measured; It is to slide in 21 scopes of fluting through fixed head 61 to drive the change of whole clamp system 6 relative positions, and corresponding clamping button 23 also can change it through its slip in fluting 22 scopes the position is set.
As shown in Figure 3, be the method for testing process flow diagram of LCD screen measurement jig of the present invention, and combine Fig. 1-2 that this method of testing comprises the steps:
Step 1, the clamping plate 62 of clamp system 6 are overturn on test board 2 open.
Step 2, LCD to be measured screen 10 is placed on the test boards 2, circuit board 11 correspondences of LCD screen 10 to be measured place on the testing circuit board 4, and the measuring point 40 on the corresponding one by one testing circuit board 4 in contact on the circuit board 11 of LCD screen 10 to be measured carries out contraposition.
Step 3,62 upsets of the clamping plate of clamp system 6 are covered on the test board 2; Be across the top of circuit board 11 with the testing circuit board 4 of LCD screen 10 to be measured; And be pressed together on the top of measuring point 40 contrapositions place that LCD to be measured shields contact and the testing circuit board 4 of 10 circuit boards 11 through the filler strip on the clamping plate 62 622, again through clamping button 23 fastening clamping plate 62 free end straps 62 on test board 2.
Contraposition contacts conducting to measuring point 40 on the contact of the circuit board 11 of step 4, LCD to be measured screen 10 and the testing circuit board 4 through the clamping of clamping plate 62; Place test board 2 interior connectors test signal to be transferred to successively the circuit board 11 of LCD screen 10 to be measured through winding displacement 8, testing circuit board 4; Realize test job, convenient reliable.
In sum, LCD of the present invention screen measurement jig, simple in structure, the rotation clamping mode of the clamp system through its clamping force of may command makes LCD screen circuit board be electrically connected with testing circuit board, realizes test, and can avoid causing LCD to shield the risk of damage; The method of testing of this LCD screen measurement jig, simple to operate, test convenient reliable.
The above; For the person of ordinary skill of the art; Can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of accompanying Claim of the present invention.

Claims (2)

1. a LCD shields measurement jig; It is characterized in that, comprising: test board, place testing circuit board on the test board, rotate and be installed on the clamp system on the test board, during test; Clamp LCD screen to be measured through the upset clamp system and realize being electrically connected test with testing circuit board; Said test board table top is provided with storage tank with ccontaining testing circuit board, is provided with connector in the test board, and this connector electrically connects through winding displacement and testing circuit board;
Relative both sides respectively are provided with fluting on the table top of said test board; Testing circuit board places on the test board table top between the fluting of both sides; Clamp system comprises a fixed head and the end clamping plate on the fixed head that are rotationally connected; Fixed head is located on the fluting of test board one side, and the fluting of the relative opposite side of test board is provided with to clamp and buckles, and is used for fixing the clamping plate free end;
Said clamping plate are connected on the fixed head test board upset relatively through the one of which end and make opening and closing movement, thereby realize the upset folding of clamp system on test board; When clamping plate cover on the test board across above the measuring point of testing circuit board; The point position of corresponding testing circuit board is provided with filler strip on the lower surface of clamping plate; This filler strip adopts soft material to process, and is used to compress the contact of LCD screen circuit board to be measured and the measuring point of testing circuit board, realizes conducting;
Said clamping button comprises and is installed in the base on the fluting and is located at the buckle on the base that clamping plate free end lower surface corresponding clip links closely and is provided with stopper slot, takes on the base through the stopper slot button, and buckle is fastened on the clamping plate free end and clamping plate are fixed on the test board.
2. a method of testing of using LCD screen measurement jig as claimed in claim 1 is characterized in that, comprises that step is following:
Step 1, the clamping plate of clamp system are overturn on test board open;
Step 2, LCD to be measured screen is placed on the test board, the circuit board correspondence of LCD screen to be measured places on the testing circuit board, the measuring point on the corresponding one by one testing circuit board in contact on the circuit board of LCD screen to be measured;
Step 3, the upset of the clamping plate of clamp system is covered on the test board, is pressed on the circuit board of LCD screen to be measured and the top of testing circuit board; When clamping plate covered on the test board, the filler strip of clamping plate lower surface is corresponding to be pressed together on the top of measuring point contraposition place of contact and the testing circuit board of LCD screen circuit board to be measured; Being pressed on the circuit board of LCD screen to be measured and the free end of the clamping plate above the testing circuit board is fixed on the test board through clamping fastening;
Measuring point on the contact of the circuit board of step 4, LCD to be measured screen and the testing circuit board contacts conducting through the clamping of clamping plate, carries out the test signal transmission, the realization test job; Measuring point through testing circuit board contacts conducting with the contraposition of the contact of LCD screen circuit board to be measured, and the connector of being located in the test board transfers to the circuit board that LCD to be measured shields through winding displacement, testing circuit board successively with test signal, tests.
CN 201010501223 2010-09-30 2010-09-30 Liquid crystal display (LCD) test fixture and test method thereof CN102004337B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010501223 CN102004337B (en) 2010-09-30 2010-09-30 Liquid crystal display (LCD) test fixture and test method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010501223 CN102004337B (en) 2010-09-30 2010-09-30 Liquid crystal display (LCD) test fixture and test method thereof

Publications (2)

Publication Number Publication Date
CN102004337A CN102004337A (en) 2011-04-06
CN102004337B true CN102004337B (en) 2012-08-29

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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102253508B (en) * 2011-04-19 2015-03-18 上海储谱实业有限公司 Liquid crystal display tester and testing method thereof
CN102332237A (en) * 2011-08-05 2012-01-25 三一重机有限公司 Detecting system for display screen
CN102689491B (en) * 2012-05-10 2015-01-07 无锡博一光电科技有限公司 Bonding fixture for bonding backlight module with LED (liquid crystal display) panel
CN102689490B (en) * 2012-05-10 2015-04-22 无锡博一光电科技有限公司 Method for bonding backlight module with LED (liquid crystal display) panel
CN104345478A (en) * 2013-07-26 2015-02-11 比亚迪股份有限公司 Device for detecting LCD (liquid crystal display) and backlight module and detection method thereof
CN103499894B (en) * 2013-10-22 2015-12-02 合肥京东方光电科技有限公司 Signal wire connector, display panel testing and detection method
CN104502746A (en) * 2014-11-28 2015-04-08 欧朗科技(苏州)有限公司 Device for automatically detecting PCBA
CN106710492A (en) * 2015-07-28 2017-05-24 句容骏成电子有限公司 Small PITCH display screen detection fixture
CN105424988A (en) * 2015-12-10 2016-03-23 苏州世纪福智能装备股份有限公司 Detection apparatus

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CN100437228C (en) * 2004-02-14 2008-11-26 鸿富锦精密工业(深圳)有限公司 Liquid crystal display module assembling device
TWM283480U (en) * 2005-03-18 2005-12-11 Innolux Display Corp Display testing apparatus and its angle adjusting device
CN201548776U (en) * 2009-09-29 2010-08-11 深圳市国显科技有限公司 Testing jig for FOG liquid crystal display
CN201654372U (en) * 2009-12-31 2010-11-24 Tcl集团股份有限公司 LCD module test jig
CN101840082A (en) * 2010-03-24 2010-09-22 友达光电(厦门)有限公司 Panel test jig

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Effective date of registration: 20180918

Address after: 523000 7 Bai Ye Avenue, 100 industrial town, Liaobu Town, Dongguan, Guangdong.

Patentee after: Guangdong Jinlong electromechanical Co., Ltd.

Address before: 214000 Jinxi Road, Wuxi City, Jiangsu Province, No. 100

Patentee before: Wuxi Booyi Optoelectronics Science & Technology Co., Ltd.