TW200412439A - 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

200412439 V. Description of the invention (1) [Technical field to which the invention belongs] The invention relates to a manual cam base for a liquid crystal display module (LCM) final test, especially a flexible printed circuit that manually connects the conductive end and the LCM through manual operation The test base on which the test ends on the board (FPC) interface are precisely aligned and fully contacted to reduce the tolerance gap between the fixture and the Fpc test end, and ensure its test position to avoid the wrong p 丨 N phenomenon. [Previous technology] Flexible printed circuit board (Flexible Printed Circuit, FPC for short) is the most complex and versatile product among printed circuit boards (printed circuit boards). Because of its flexibility, The combination of light, three-dimensional space and three-dimensional wiring makes the product meet the needs of big brother Dafeng & short, small, so it is widely used in notebook computers, 工 雷 工 * 4, LCD monitors, hard disks, Printers, cameras, and automotive devices, stems, and M are used first, then the test assembly of flexible printed circuit board (FPC), and the structure described in the Chinese search journal: "Tilting, m 民 Republic of China Patent Gazette Announcement No. 3 7 9 3 6 No. 6h% ^ Device ”(as shown in Annex I)

In order to test the test object, the test object is brought into contact with the probe terminal 2. Zhonghua: A device with good yield. "Exploration system 4" The Republic of China Patent Gazette Announcement No. 3 5 7 2 6 5 Needle Elimination Test Card, Package, Forming Method "(such as Attachment 2) reveals that the first ~ surface of a probe ^ two substrates, one The insulating film is stretched to the substrate /, the edge film has a first surface and a first surface of the substrate.

V. Description of the invention (2) Surface contact to form the first of the insulating film; and a probe pattern forming pattern, 彳 | II "crossbar type, the device needle, through the transmission, whether the installation is wrong. 4, "Floating bomb test device, the top parallel to the bottom, the needle retaining piece is in a straight line5," The composite system includes the inner part of the Chinese sleeve probe measured by the end sleeve system specifications, including the crossbar for the treatment error. The Chinese People's Force Probe includes a probe board to allow for extension. Zhongmin fixtures are probes and are a variety of joints. They are provided with a table = interval area, defined between the first surface of the substrate and the mold 'so that part of the insulating film can enter the space. On the second surface, the probe is formed with a raised probe on the insulating film to form a test card. The test is disclosed in the test report No. 4 9 7 7 1 8 No. 2 (as shown in Annex III). Device = a probe, a second probe, a cross bar, and two probes that touch the connector, and the second probe's wires and attendants determine that the connector set on the circuit board to be tested is <:公报 Li Bulletin Announcement No. 3 6 8 6 0 2 ^ $ Device ”(as shown in Annex IV) ^ ... The base has a fixed probe plate, a top plate is roughly placed, and a probe retaining sheet is set at The wall of the probe board: a 丨, the test probe of the smart pin board also extends through this probe =, the pin and the circuit under test on the printed circuit board = = = Bulletin Announcement No. 3 7 8 7 5 6 PRODUCT # = MODIFY "(as in Appendix V), the probe construction instrument probe cover 锊 ^ ^ τ η + is composed of the same, which is characterized in that: the probe Ϊ specifications insertion portion, the trailing end are mono- to set a bomb Pu Jie-based probes can be inserted into the sleeve in; the probe 'of the trailing end of the spring wire lines connected directly to the head end

Page 6 200412439

Connected, the probe sleeve is set in place, and the end of the wire is set as the cable of the circuit tester. Although the above-mentioned test device has a continuity yield at the test end, it is most likely to have a wrong PIN, which will cause the test.爰 Yes, [Contents of the invention] After the outer circle of the spring, the end of the spring is clamped with a solid copper rod, and these copper rods can be directly inserted into the flexible printed circuit board to test the FPC alignment. The main purpose of the present invention is to solve the above-mentioned deficiencies and avoid the existence of the deficiencies. In the present invention, the conventional test method is changed to the probe test, and the tolerance gap between the test point and the FPC test glycoside end is reduced. To ensure its test location. Another object of the present invention is to replace the manual pressure and fast refreshment with a cam transmission mechanism, and replace the Fpc used in the conventional test with a probe to avoid the phenomenon that the Fpc misaligns the PIN. Another object of the present invention is that the base can be aligned quickly and easily through manual operation, and can avoid repeated actions and increase productivity due to increased operation time. Another object of the present invention is that it is designed to be a common type, and can be applied to products similar to the latter. In order to achieve the above-mentioned purpose, the liquid crystal display module (LCM) of the present invention finally tests the manual cam base for testing the base of the yield of the Flexible Printed Circuit (FPC) on the flexible printed circuit board (LC). The seat is mainly composed of a body, a platform, a positioning part, a guide mechanism, a test element provided with a plurality of conductive ends, and a cam transmission mechanism.

Page 7 200412439 V. Description of the invention (4) h Fix the object to be tested in the positioning part, drive the transmission mechanism to drive the test element. The component is reciprocated up and down, when the test element is pressed down on the test end of the object to be tested , A one-to-one complete and precise contact will be formed between the conductive end and the test end, which can effectively test the yield of the test object and reduce the rate of misjudgment and wrong PIN. [Embodiment] The detailed description and technical contents of the present invention are described below with reference to the drawings: Please refer to Figures 1 and 2, which are schematic diagrams of the three-dimensional appearance, seat decomposition, partial enlargement and three-dimensional decomposition of the present invention. As shown in the figure: The φ liquid crystal display module (LCM) of the present invention finally tests a manual cam base to test the yield of the flexible printed circuit board (Flexible Printed Circuit, F PC) on the LCM. This base Mainly composed of a body 1, a platform 2 recessed on the aforementioned base 1, a positioning portion 3 provided on the side of the aforementioned platform 2 for FPC positioning, and a guiding mechanism provided on the side of the aforementioned positioning portion 3 4, a set of test elements 5 provided in the aforementioned guide mechanism 4 and a cam transmission mechanism 6 provided below the aforementioned test element 5; the above-mentioned seat 1 includes an upper seat 11 and a base 1 2, wherein the upper seat 11 and the base 12 are locked by a locking element 13; the platform 2 is provided with a plurality of positioning grooves 2 1, and a clip is provided at both ends of the platform 2 Holder 2 2, 2 2 > to fix the object to be tested on platform 2 Inside the position, the holder 2 2, 2 2 / is provided with an adjustment groove 2 2 1, 221 > and is placed on the above through the lock members 222, 222 / sleeve

200412439 V. Description of the invention (5) The adjusting grooves 22 1 and 22 1 are locked to the two ends of the platform 2 so that the adjusting grooves 221 and 221 can be locked to the platform 2 at different positions for different applications. The size and size of the object to be tested; the positioning portion 3 includes a first positioning piece 3 1 and a second positioning piece 3 2, and the two first and first positioning pieces 3 1 and 3 2 are locked by a locking element 3 3 It is fixed, and a sleeve groove 3 4 for placing a flexible printed circuit board (FPC) is provided between the first and second positioning pieces 3 i and 32; the guide mechanism 4 includes two guides 4i, 41 > A spring 42, 42 > is mounted on each of the guides 41, 41 >, and a trimmer 4 3, 4 3 > is provided above each of the springs 4 2, 4 2; The test element 5 includes a test The part 5 丄 and a transmission part 5 2 are locked by a plurality of locking elements 5 3. Among them, the test 4 5 i is set on the rain guide 4 i, 4 of the guide bow 丨 mechanism 4 It can be provided with a plurality of lead wires 5 5 connected to one side of the Π51 and 1 lead end 5 4 'The transmission part 5 2 is provided with a pivot 5 2 2; it can be freely fitted in the aforementioned pivot 521 turn The rotatable member 52 to the support 2 cam mechanism 6 includes a set of support members 6, 6, the swash meat! Pieces 61 and 61 —A pivot 62 is provided therein, and a plurality of miscellaneous wheels 6 3 ′ are pivotally connected at a position directly below the pivoting part 5 2 2 of the transmission part 5 2 above the pivot 62 and passing through the pivot 6 2 The other side of the support member 6 1 passes through your wire & mouth member 6 5 and a lock inherently a trigger member 6 4 to drive the cam 6 3 to move the actuator;

俾 取 ’the flexible printed circuit board (F of the liquid crystal display module (LCM)

Page 9 200412439 V. Description of the invention (6)

PRC i: In the sleeve groove 3 4 of the positioning part 3, the cam transmission mechanism 6 4 is pulled, so that the cam 6 3 is turned toward the test element 5 transmission part 5 2 and the transmission part 5 2 drives the test part 5压 Press down on the ERF field ACuW \ Press down on the interface of the flexible printed circuit board (FPC) (the NTT diagram does not show the conductive end 5 2 on the test part 51 and the FPC test end (one to one between the two) Full and precise contact can effectively improve the yield of the printed circuit board (FPC), reduce the rate of false positives and wrong PIN. Please refer to Section 3 — 1 ~ 3 ~ ^ fi +, the intention is as shown in the figure. Taigong Ba ， 3 The figure shows the continuous operation of the present invention. The test of the liquid crystal display module (LCM) of λ ^ Maoyue, which is manually protruding, is to be tested; set = :: J: may: LCD display module "C positioning, It can be adjusted by adjusting the level; the multiple positioning grooves 21; the adjustment grooves 2 2 1 and 2 2 have the two side clamps 2 and 2 f at the position of 7, and then the test object is fixed to the test object step by step. Interface (test) on the poor 77; 7 is a weighted printed circuit board (fpc) placed in the sleeve groove 3 4 and the test terminal when the sleeve is placed in the positioning section 3 (TERFACE) ^ ^ j Printed circuit (FPC) interface (IN, let test part = test element 5 below test part 51 1, then drive the trigger 6 jf to test the test end 7 of the test object 7, when the cam 6 3 rotates to the if pivot 6 2 When the upper cam 6 3 turns, it will rotate at the farthest position of the Hertzian shaft 6 2 above the cam 6 3, and the transmission part 52 will be lifted upward 522 and the transmission part 52 will be raised upward, so that the test part 5 1 direction The thrash will immediately drive the test section 5 1 to raise the conductive end 54 in the top of the top. Envy, when

IEHH Page 10 200412439 V. Description of the invention (7) After the slot 3 4 of the test object 7 is driven, the pivot 6 2 is pivoted 6 2 —appropriate 5 2 2 That is, the test circuit board is pushed down. In this case, the divided work can be tested at the bottom angle, and the test section can be passed and treated (FPC). See the figure on the two sides for an angle. The seat 1 2 works, and the test end 71 has Completely fixed, the above-mentioned trigger 6 4 is reversed to the cam 6 3 of the opposite side j. When the cam 6 is in position, the cam 6 3 will be turned down, and the driving part 5 2 will be pushed down to 5 1 Press down so that the test terminal 7 1 of the test object 7 in the test part 5 contacts and passes the conductive signal 5 5 to distinguish the conduction yield of the test object 7. The position sleeve 3 is driven in the direction of the sleeve, and when it is pushed down by the rotating member above the distance, the conductive end 5 4 will be made a one-to-one pair. It can be printed softly 4-1 4 ~ 2 The use status of the creation is open and the base 1 2 orders 1 4 and 1 4 1 only adjusted for sale, so that the user of the upper seat 1 1 can pass the position without a sentence: the upper seat 1 1 of the present invention is all open There are a plurality of positioning holes for the locking element 1 3, and the locking element 1 3 is locked during operation to generate an inclined angle, so that it can be effectively aligned with the test object 7

Further, the present invention replaces the conventional hand pressure quick-release calipers and pneumatic-type base with a cam transmission mechanism, so that the operator can test under the most simple, fast and easy-to-operate conditions. Further, the present invention replaces the flexible printed circuit board (FPC) commonly used in testing with the conductive end 54 which can be a probe, which can effectively reduce the flexible printed circuit board (Fpc) and the conductive end of its liquid crystal display module (LCM). The clearance tolerance of 5 4 makes it difficult to produce wrong p 丨 N phenomenon due to poor positioning, which can reach

Page 11 200412439 V. Description of the invention (8) To the purpose of improving the test expression Yan, Xuan, β ^ ^ yield and reducing working hours. In V, the present invention is integrated into the most refined food line, and the customer's requirements for the final test fixture, and the second is to meet the production base, which can be applied to similar products in the future. ", And this design is a common type, but the above is only the preferred implementation of the present invention to limit the scope of the implementation of the present invention, that is, the equal changes and modifications made in accordance with the present invention to Z range, Both should still fall within the scope of the present invention. Gai Zhi

Page 12 200412439 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 to 3-3 are schematic diagrams of continuous operation of the present invention. Figures 4-1 and 4-2 are schematic diagrams of the use state of the present invention. [Illustration of Symbols of Drawings] Seat body .............. 1 Upper seat ........--- 11 Base ........... 12 Locking element. ....... 13, 33, 53, 65 positioning holes ... 1, 4, 4 > platform ... 2 positioning grooves .. ......... 2 1 Clamp ......... 22, 22 > Adjustment groove ......... 221, 221 < Locking device ... ..... 2 2 2, 2 2 2, Positioning section ......... 3 First positioning piece ......... 31 Second positioning piece ... .32

Set slot ......... 34 W guide mechanism ......... 4 guide ......... 4 1 、 4 1 > spring. ........... 42, 42 < trimmers ......... 5

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Page 14

Claims (1)

200412439 6. Scope of patent application [Scope of patent application] 1. A liquid crystal display module (LC Μ) final test manual cam base for testing the yield of the flexible printed circuit board (F pc) of the liquid crystal display module (LCM) A base, which mainly includes: a base body; a platform, which is recessed on the base body; a positioning portion, which is provided on one side of the platform; a guide mechanism, which is provided on the side of the positioning portion The test element includes a test part and a transmission part, the test part is sleeved in the above-mentioned guide mechanism and is provided with a plurality of ends connected to the lead wire; a cam transmission mechanism is provided adjacent to the test The transmission part of the element; borrow, fix the object to be tested in the positioning part, drive the trigger to make the cam ▼ move, the test element reciprocates up and down, when the test element is pressed on the test and test ends, the conductive end and the test One-to-one complete and precise contact will be formed between the ends, which can effectively test the yield of the test object, reduce the false positive rate and the wrong P 丨 N phenomenon. 2. According to the liquid crystal display module (LCM) described in item 1 of the scope of the patent application, a manual cam base is finally tested, wherein the base includes an upper base and a base, and a locking element is used to lock the two. . 3. The liquid crystal display module j (LCM) as described in item 2 of the scope of patent application for the final test of the manual cam base, wherein a plurality of positioning holes are provided on both sides of the upper base. 4. The final testing of the manual cam base of the liquid crystal display module (LCM) as described in item 2 of the scope of patent application, wherein the base corresponds to the positioning of the upper seat Page 15 200412439 6. Scope of patent application There are multiple positioning holes at the hole position. 5. According to the liquid crystal display module (LCM) described in item 1 of the scope of the patent application, the manual cam base is finally tested. Among them, the upper seat and the base can allow the operator to adjust the use angle. 6. The liquid crystal display module (LCM) as described in item 1 of the scope of the patent application for the final test of the manual cam base, wherein the platform is provided with a plurality of positioning grooves. 7. The final test manual cam base of the liquid crystal display module (LCM) as described in item 1 of the scope of the patent application, wherein both ends of the platform are provided with a clamp to fix the position of the object to be tested in the platform. . η For example, the liquid crystal display module (LCM) described in item 7 of the application fΛli range finally tests the manual cam base, wherein the adjustment groove can be adjusted for proper displacement. I /, 円 Kaicheng has 9, as in the 7th patent application scope, μ, > (LCM) final test manual cam base, which is fixed on both ends of the platform with the crystal display module. Furthermore, the holder is a liquid crystal display module as described in the locking element, wherein the positioning part includes a positioning pad of the 10th, the final testing manual cam base such as the patent application scope (LC Μ). And a second positioning piece. 1 1. According to the final application of Patent Application Scope Group 20 (LCM), the manual cam base is finally tested, and the liquid crystal display module described in the item is locked and fixed with a locking element. Among them, the first and second positioning pieces 12 2. According to the patent application scope of Group 10 (LCM), the manual cam base is finally tested and the liquid crystal display mold described above, wherein the first and second positioning pieces are 200412439 Sixth, the scope of patent application There is a set sleeve between the test end of the object to be tested. 1 3. The liquid crystal display module (LCM) as described in item i of the patent application is used for final testing of the manual cam base, wherein the guiding mechanism includes a guide rail. A 1 4. According to the liquid crystal display module (LCM) described in item 3 of the scope of patent application, the manual test cam base is finally tested, wherein a spring and a trimmer are provided on the two guide rails. 15. The liquid crystal as described in item i of the patent application scope (! ^ We finally test the manual cam base, wherein the test element and the transmission part are locked in place by a plurality of locking elements. The liquid crystal display module described in item 1 of the scope of interest is provided with a pivot cam base, in which the transmission part 17 of the test element, the * shaft, and a set of freely rotatable fittings in the pivot. Rotating parts. (LCM) Final :: f; The conductive terminals of the liquid crystal display module described in item 1 of the scope of interest may be "convex." Wheel base, of which the test unit test section 1 D ° (LCM) Final ^ The liquid crystal display module described in item 1 of the patent scope has a set of support, piece X, a manual cam base, wherein the cam transmission mechanism includes the transmission part, and a support is provided inside the support. A pivot, and a cam is pivotally connected to the position directly below the moving part in the front of the pivot, and a pivot is provided on the other side of the pivot, a trigger part to drive the rotation of the cam.