TWI224681B - Manual cam base for final testing of liquid crystal display module (LCM) - Google Patents

Abstract

There is provided a final test manual cam base for final testing of liquid crystal display module (LCM), which is a base for testing the yield rate of the flexible printed circuit (FPC) board on LCM. The base is composed of a seat, a stage, an alignment part, a guiding mechanism, a test device configured with a plurality of conductive terminals and a cam transmission mechanism. As such, the object to be tested is fixed in the alignment part, and the transmission part is driven to move the test device up and down periodically. When the test device moves down to press on the test terminal of the object to be tested, there is formed a one-to-one complete and precise contact between the conductive terminal and test terminal, thereby effectively testing the yield rate of the object to be tested, reducing the erroneous determination rate and avoiding mal-position of the pin.

Description

1224681

[Technical field to which the invention belongs] The present invention relates to a 7-wheel base for a liquid crystal display module (LCM) final test hand, and in particular to a manual operation to make the conductive end interface with "M's soft printed circuit board (FPC)" The test terminal on the top is precisely aligned and fully connected, and the test base is used to reduce the tolerance gap between the fixture and the FPC test terminal to ensure its test position to avoid wrong PIN. [Previous Technology] Flexible / flexible printed circuit boards (Flexible Printed Circuit, referred to as FPC) is the most complex and versatile of printed circuit board (PCB) products. Because of its flexibility, I use space size and shape for three-dimensional space three-dimensional wiring. The products meet the requirements of I, thin, short and small, so it is widely used in notebook computers, mobile phones, LCD monitors, hard disks, printers, cameras and other electronic products. Known 'traditional use There is no testing device for testing flexible printed circuit boards (FPC). The structure is as described in the following patent bulletin: 1. The Republic of China Patent Gazette Bulletin No. 3 7 9 3 6 5 "Test method and probe Pei Chi" (as shown in Annex I) discloses a device that raises the test object through the mounting table toward the probe terminal and contacts the test object with the probe terminal. "2, Zhonghua The Republic of China Patent Gazette Bulletin No. 3 5 7 2 6 5 and its forming method "(such as Annex II) revealed that a probe test card 'includes a substrate and an insulating film, which are flexible and extend on On the first surface of the substrate, the insulating film has a first surface and a first surface of the substrate.

Page 5 丄

V. Description of the invention (2) Surface contact to form a first sheet of the insulating film; and a probe pattern forming pattern, which is defined between the first surface and the surface of the substrate through a space region, so that Part of the insulating film can enter the space and extend on the second surface of the insulating film. The probe is formed by using the raised probe on the insulating film to form a test card. Including needle, through the transmission of the crossbar, let the wrong installation. 4. Chinese people's "Floating elastic probe test device, including a top parallel to the bottom of the probe board, the extension needle retention piece, for straight alignment. 5. Chinese People's Republic of China "The composite jig probe system includes a plug-in unit with probes and head ends of various specifications, and the inner part of the sleeve is equipped with a national patent gazette announcement testing device" (such as the first Whether the pin touched the connecting device and learned to determine the wireless test device of the country ’s patent gazette. ”(The base of the device has a fixed position and a probe passes the test of the probe board. Improve the structure of knitting needles "(such as the probe sleeve composition, the size of different straight 彳 this plug can be inserted with a spring, the spring tail number 4 9 3)-the probe, and the first Circuit board No. 3 6 The test probe of the probe board retaining sheet as shown in Annex 4 is also the test device of No. 7 7 1 No. 8 test bar. The connector of the probe is 8 6 0. The test disclosed by No. 2), a top plate is roughly placed on the probe board, and the circuit board is tested under this circuit board No. 37. Attachment 5) Its characteristic frame, the tail end is directly into the probe cover end is directly No. 8 7 5 6 The structure of this probe is ... The probes are single-set - the barrel; and the probe tip and the wire connected 1224681

V. Description of the invention (3), after conducting, the probe sleeve is clamped and fixed after the sleeve is placed on the outer circle of the spring, and the end of the wire is set as a copper rod, and these copper rods can be directly inserted Circuit tester line. Although the above test device can test the continuity yield of the test terminal on a flexible printed circuit board, FPC alignment is not easy during the final test, and it is prone to wrong PI N, which causes test problems and wastes man-hours and time. Into ^.爰 Yes, [Contents of the invention] The main purpose of the present invention is to solve the above-mentioned defects and avoid the existence of the defects. The present invention changes the conventional test method to a probe test, and reduces the tolerance gap between the fixture and the FPC test end to ensure Its test location. Another object of the present invention is to replace the manual pressure quick clamp with a cam transmission mechanism, and replace the Fpc used in the conventional test with a probe to avoid the Fpc misaligning the PIN. Yet another object of the present invention is that the base is simple and convenient for manual operation, can be quickly aligned, and can avoid repeated actions and increase productivity due to increased operating time. ^ 3 ~ Another object of the present invention is that it is designed as a common type, which can be applied to similar products.

In order to achieve the above purpose, the liquid crystal display module (LCM) of the present invention finally tests the manual cam base for testing the flexible printed circuit (FPC) yield on the LCM. It consists of a body, a platform, a positioning part, a guide mechanism / a test element with multiple conductive ends and a cam transmission mechanism.

V. Description of the invention (4)

The test object is fixed in the positioning part, and the driving mechanism is driven to drive the test element to move downward. When the test element is pressed down on the test day of the test object, a one-to-one complete and accurate one will be formed between the conductive end and the test end. The N phenomenon can effectively test the yield of the test object, reduce the rate of false positives and false PI. [Embodiment] The detailed description and technical content of the present invention with respect to the present invention will now be described in conjunction with the drawings: VIII & Figures 1 and 2 show the three-dimensional appearance and base of the present invention: a schematic diagram of the magnification and three-dimensional decomposition of the station, as shown in the figure: the final test of the invention, the LCM Manual cam base, used to test the yield of flexible printed circuit board (Flexible Printed Circuit, F γ), this base is mainly composed of a base 1, a recess on the aforementioned base 1, platform 2 One is located at one side of the aforementioned platform 2 for FPC positioning ^ 疋 ^ 部 3 'One guide mechanism 4 is provided at one side of the aforementioned positioning section 3 and the sleeve is also a test element in the above-mentioned guide mechanism 4 5 and a cam pass located under the aforementioned / 贝 '忒 tl 件 5 The structure 6 is composed of the above-mentioned seat body i, which includes an upper seat ii and a base 丄 0μ /, and the 'the upper seat 1 1 and the base 1 2 are fixed by a locking element 1 3 The platform 2 is provided with a plurality of positioning grooves 21, and a clamp and ^ ^ ^ z, 2 2 are provided at both ends of the platform 2 to fix the object to be tested in the platform 2, 2 2 and 8 2 2. 2 2 is provided with an adjustment groove 2 2 1 'and is inserted into the above-mentioned 1224681 through the locking member 22 2,222 V. Description of the invention (5) The adjustment groove 2 2 1. The adjustment groove 2 2 1. The end is suitable for The positioning part 3 3 2 and the two 3 locks are fastened for the soft printing of the guide 4 1, 4 4 2 and 4. The test part 5 1 can be the probe 1 and a set 2; There is a cam with multiple locks protruding from the support. The first and the second are fixed and brushed on the circuit guide mechanism on the factory. 2 > The test component is made of the compound 1 and is used for the test. 1. The transmission 6 3, the element 6 'is locked inside the liquid 221 > to the two ends of the platform 2 221 can be locked at different positions to the test object of the same shape and size; including A first positioning piece 3 1 and a second positioning piece 3 1, 3 2 are provided with a sleeve groove 3 4 using two locking pieces 31, 32; two guides 41, 41 > are provided with a spring 42, 42—, and a trimmer 4 3, 4 3-a test section 5 1 and a drive on the first board (FPC) 4 including all parties are equipped with 5 series including a number of locks are installed in the above section 5 1 of the end 5 4, the pivot 5 element 5 3 lock the fixed position, the two guide rails 4 of the guide mechanism 4 is provided with a plurality of and wires 5 on the side of the transmission part 5 2 is provided with a freely rotatable turning point in 21 Let the platform 2 be provided with two or two positioning piece fixing elements 3 between the guide rails and the spring parts 5 2, wherein the 1, 4 5 are connected and the pivot 5 2 is the moving part 5 2

The mechanism 6 includes a set of support members 6 i, 6 丄 /, f 1 does not have a pivot shaft 6 2, and is pivotally connected to a position directly below the pivot member 5 2 2 of the pivot shaft 6 2 P5 2 and is located on the locator shaft 6 2 The flexible printed circuit board (F 1224681 V. Description of the invention (6) PC) is fixed on the other side of the support member 6 1 through the 5 lock inherently a trigger member 6 4 to drive the cam 6 3 crystal display module (LCM). The triggering member 64 of the positioning part 3 sets 6 to make the cam 6 = two: = the wheel transmission mechanism rotating part 5 2 2 top stop, so that the transmission part f and the transmission part 52 are pushed down when the test part 51 is pressed down. Soft ^ f dynamic test 4 5 1 push down j 丄 r macro κ autumn 1 * raw printed circuit

ERFACE), there will be a -pair- Λ / Λ test end (between the 5 interface boards of the test department (= interface (not shown in INT))

Testing this flexible printed circuit board (FPC): Wang He's precise cymbal, can be effective phenomenon. ) To reduce the rate of false positives and incorrect PINs. Please refer to Section 3 — 1 ~ 闾 义 丄 々 咅 丄 々 咅 Θ, & IS1 $-1 η β, which is the LCD display module of the continuous operation of ΓΓ. ) Final test

Μ) The test object 7 is placed on the platform 2 and the machine is positioned as a fork, and ("LC positioning, and can be adjusted by adjusting the positioning grooves 2 1 ^ _ 十 σ 2 on both sides 2 2, 2 2 / Adjust the inscriptions of the grooves 2 2 1, 2 2 1 > in the inside, 隹 Zhi B, 8 7 ^ to $ h / shi, displacement to further fix the position of the test object 7 'and then the test object 7 on The test terminal 7 of the interface 4 (_RFACE) can be extended to the test terminal 7i of the # 1 (FPC) interface (IN), and the conductive terminal 5 4 of the test section 51 can be aligned. 、 丨 b 1 below 1 2 and then move the trigger 6 4 and drive _ 6 2 to rotate, although the cam 6 3 rotates to the farthest position from the pivot 6 2 ^ will rotate the rotating member 5 above the cam 6 3 2 2 Etch and investigate ^ s, ^ ^ cr 〇, and make the transmission part 52 up ", 2 when it is lifted up, it will immediately drive the test part 5 i up to make the conductive end 5 in the test part 5 i 4 Lifting up page 10 U24681 V. Description of the invention (7) ^ q ^ Test end 7 of the object 7 1 is completely fixed to the positioning part 3 Drive the pivot L f 6 4 Drive in the opposite direction to make the pivot 62 — i cam 63 reverses, when cam 63 rotates When the distance to the position of the cam 63 will turn the rotation of the upper member

Pp described, when the transmission part 5 2 is pushed down, when the transmission part 5 2 is pushed down, the following 5 1 is pressed down to make the conductive end in the test part 5 1 ^ 4接触 The test terminal 7 1 of the test object 7 contacts and makes a pair—a pair (two transmitted signals f 5 5 to distinguish the conduction yield of the test object 7 which can be a flexible printed circuit board (FPC)). I »Ming I = 4th, 4th, 4th, 2th, 2nd, showing the state of use of this creation, as shown in the figure: the upper seat 11 and the base 12 of the base 1 of the present invention are opened at the corresponding positions on both sides, respectively There are multiple positioning holes i 4 and i 4 together with a locking element 1 3. When operating, only adjust the appropriate operating angle, and then lock and fix the locking element i 3 to let the upper seat 丄 1 A tilt angle can be generated on the base 12 to facilitate the user to work through different angles, and the test can be effectively aligned with the position of the test object 7. Progress' The present invention replaces the conventional hand with a cam transmission mechanism The quick-release clamp and the pneumatic base enable the operator to perform tests under the most convenient, fast and easy-to-operate conditions. Further, the present invention provides The conductive end 5 4 of the probe can replace the flexible printed circuit board (FPC) generally used in testing, which can effectively reduce the gap tolerance of the flexible printed circuit board (Fpc) and the conductive end 5 4 of its liquid crystal display module (LCM). It makes it difficult to produce wrong piN phenomenon due to poor positioning, which can reach 1224681 V. Description of the invention (8) To improve the test yield and reduce man-hours. Further, the invention is integrated into the most sophisticated °, line and customers The requirements for the final test fixture reach the production base of the stomach, skin, and beauty. It can be used as a similar product Putian, and this design is a common type, but the above can be limited from 0 to 0. This note is only a preferred embodiment of the present invention. When it is not in the scope of equal application, that is, within the scope of the patent application for this invention, all modifications and modifications should still be covered by the invention patent.

Page 12 1224681 Brief description of the drawings [Simplified description of the drawings] FIG. 1 is a schematic diagram of the three-dimensional appearance and disassembly of the seat of the present invention. FIG. 2 is a partially enlarged and three-dimensional exploded view of the present invention. Figures 3_1 ~ 3-3 are schematic diagrams of continuous operation of the present invention. Figures 4-1, 4 and 2 are schematic diagrams of the use state of the present invention. [Illustration of Symbols of Drawings] Seat body .............. 1 Upper seat ········· 1 1 Base · ............ 12 Locking element ......... 13, 33, 53, 65 positioning holes ...... 1 4, 1 4 / platform ... 2 positioning grooves ... ........ 2 1 Clamp ......... 2 2, 2 2 > Adjustment slot ......... 221, 221 > Locking ... ........ 222, 222 < Positioning section ......... 3 First positioning piece ... 31 Second positioning piece ... 32 Set slot ......... 34 Guide mechanism ...... 4 Guide bar ......... 41, 41 > Spring ... ....... 42, 42 > trimmers ......... 5

Page 131224681 Schematic description of the test section ......... Transmission section ......... Pivot ......... Rotating part ... ... f, wire ......... Conductive end ......... Cam transmission mechanism ... Support ......... Cam · ............ Trigger ............... Test object ......... Test end ...

2 5 2 1, 6 2 5 2 2 6 4

• 64 • 7 • 71

1 ^ 1 p. 14

Claims (1)

1224681 Amendment Gu 921ΐΑπ | Shi Yueri Sixth, patent application scope [Patent application scope Lj 1, a liquid crystal display module (LC Μ) final test manual cam base, used to test the flexible printed circuit of the liquid crystal display module (LCM) F Pc yield base, this base mainly includes a body; a platform is recessed on the base; a positioning part is set on the side of the platform; a guide A mechanism is provided at one side of the positioning portion; a test element includes a test portion and a transmission portion, and the test portion is located in the above-mentioned guide mechanism and is provided with a plurality of connection with the lead wire :: wheel transmission mechanism It is located next to the above-mentioned measuring instrument, and the object to be tested is fixed in the gold office, and p 丨 4 L is held in the position, and the trigger is driven to make the cam drive the testing element to reciprocate up and down. — Break, 邋 Φ, set the linkage, and prepare the test piece to push down the test 夺 and grab the conductive braid and the test end will form a one-to-one complete and accurate phenomenon. w Good yield, reduce the false positive rate and wrong p IN 2. For example, the final test of the patent application scope (LCM) manual test to highlight its wide 丨 κ shape day and day, ”Bubuqi module ^ ^ 麻 广 ^. Wheel Base 'where' The base includes an upper base and a base, with a miscellaneous-^ ^ upper Q 1Γ locking ^ pieces to lock it. (LCM) Final test manual cam beauty 2, the LCD display described above Multiple positioning holes for the module. Wheel base 'where the two sides of the upper seat are provided with the liquid crystal display module described in item 2 of the patent application Fan Qiansheng J Qianwei Page 15 1224681 Year-end collar of repair, 9%? ^ ^ Heng cage flywheel based products, where 'the base corresponds to the upper seat-Case No. 9¾ 6. There is a plurality of numbers at the location of the final test hole of the patent application scope (LCM) Positioning hole v 5. The final test manual cam base of the liquid crystal display module (LCM) as described in item 1 of the scope of patent application, wherein the upper seat and the base of the seat body allow the operator to adjust the use angle . 6. According to the liquid crystal display module (LCM) described in item 1 of the scope of patent application, the manual cam base is finally tested, wherein the platform is provided with a plurality of positioning grooves. 7. According to the liquid crystal display module (LCM) described in item 1 of the scope of the patent application, the manual test cam base is finally tested. Among them, a clamp is provided at both ends of the platform to fix the position of the object to be tested in the platform. μ According to the final test of the liquid crystal display module (LC Μ) described in item 7 of the scope of the patent application, the final test is manually convex, ^ 9, the liquid crystal display module described in the seventh item of the claim range = lock is the most solid; ; ^ Hand two-moving end cam base, wherein the clamping device is used to lock a two Π; :: ;;: 1 :: Said first positioning piece of the LCD module and a second fixed piece: soil piece . "..." The positioning portion includes-group ⑽) The final soil display module is locked and fixed by a locking element. μFirst, first positioning 12, LCD display as described in item 10 of the scope of patent application, page 16 1224681 Case No. 9 < l · Mabai + month day correction δ aS VI, patent scope setting module (LCM) Finally! ^ Base, wherein, between the first and the bit, there is a sleeve for placing the test end of the object to be tested. 1 3. According to the liquid crystal display module (LCM) described in item 1 of the scope of patent application, the manual testing cam base is finally tested, wherein the guiding mechanism includes two guides. 14. According to the liquid crystal display module (LCM) described in item 13 of the scope of the patent application, the final test of the manual cam base is ‘where’ a spring and a trimmer are respectively set on the two guide rails. 15. According to the liquid crystal display module (LCM) described in item 1 of the scope of the patent application, the manual test cam base is finally tested, wherein the test part and the transmission part of the test element are fixed by a plurality of locking elements. Of it. 16. The liquid crystal display module (LCM) as described in item 1 of the scope of patent application for the final test of the manual cam base, wherein the transmission part of the test element is provided with a pivot shaft and a set of freely arranged in the pivot shaft Rotating parts. 17 7. The liquid crystal display module (LCM) as described in item 1 of the scope of patent application for the final test of the manual cam base, wherein the plurality of conductive ends of the test element test section may be probes. 18. The final test manual cam base of the liquid crystal display module (LCM) as described in item 1 of the scope of patent application, wherein the cam transmission mechanism includes a set of support members, a pivot shaft is provided in the support members, and A cam is pivotally connected to the position directly below the rotating part of the transmission part in the pivot, and a trigger is provided on the other side of the pivot through the supporting part to drive the rotation of the cam. Page 17