TWI275209B - Fixture structure of grounding elastic sheet in the printed-circuit board of LCD module - Google Patents

Abstract

The present invention provides a fixture structure of grounding elastic sheet for grounding the printed-circuit board (PCB) of LCD module on the front frame of an LCD. The fixture structure of the grounding elastic sheet is formed with a grounding metal sheet and a bonding member. The grounding metal sheet has a first metal grounding sheet, a second metal grounding sheet, and an elastic sheet. The first metal grounding sheet and the second metal grounding sheet are formed in a whole and form a perpendicular bending-angle mutually. The first metal grounding sheet has at least a hole, and the elastic sheet is disposed on the second metal grounding sheet. The bonding member has an upper surface, a lateral surface, a concave guiding-groove, a pair of fixed clip sheets, and at least a convex pillar. The concave guiding-groove is disposed on the upper surface, and at least one convex pillar is disposed on the concave guiding-groove. The pair of fixed clip sheets are disposed at both sides of the inlet of the concave guiding-groove, so as to guide the first metal grounding sheet from beneath the pair of fixed clip sheets into the guiding groove until the second metal grounding sheet contacts with the lateral surface of the bonding member. Also, the hole of the first metal grounding sheet is sleeved into the convex pillar for fixing the grounding metal sheet.

Description

1275209 V. INSTRUCTION DESCRIPTION (1), FIELD OF THE INVENTION The present invention relates to a grounding shrapnel fixing structure, and more particularly to a grounding shrapnel fixing structure for a liquid crystal display module printed circuit board. [Prior Art] Since the liquid crystal display has the advantages of low power consumption, small size, light weight, and non-light-emitting display, it has been widely used in various electronic products, and more particularly, the slim shape of the notebook computer. With the characteristics of portability, the demand for liquid crystal displays is increasing, and even the conventional cathode ray tube display has been gradually replaced. Therefore, the efficient production and low cost manufacturing of liquid crystal displays are of concern and need of manufacturers. Furthermore, the manufacturing process of a liquid crystal display is complicated, and the most typical TFT-LCD panel manufacturing process is exemplified by a TFT array substrate (Aray), a panel assembly (Ce Π), and a module assembly. (Μ odu 1 e ) three stages. In the stage of the array substrate, the thin film transistor and the transparent electrode layer are fabricated through photoresist coating, exposure, development, lithography and photoresist stripping, and the required lines and components are stacked one by one. Forming an array substrate of a thin film transistor (TFT), and then entering a panel assembly stage, where the color filter substrate and the TFT array substrate are coated with an alignment film coating liquid and rubbed and oriented. After dispersing the spacer (S pacer), injecting the liquid crystal, and attaching the phase difference plate and the polarizing plate to complete the assembly of the TFT-LCD panel; finally, entering the module assembly stage, the TFT-LCD panel and the driving 1C, Printed circuit board (PCB) connection,

00571.ptd Page 5 1275209 V. Invention description (2), and install the backlight module and the fixed frame (F r a m e ) to complete the assembly of the liquid crystal display module (L C D m 〇 d u 1 e ). In the above process, the assembly stage of the module is the most demanding part of the LCD factory. Although the process is not difficult, it cannot be automated, and must be completed by manual processing. Therefore, the labor cost is high and the time is wasted. Therefore, it is necessary to provide a structure or method for saving labor and time in the assembly stage of the module. Referring now to Fig. 1, there is shown a combination of a frame 80 for fixing an LCD module and a conventional grounding metal piece 60 in the assembly stage of the module. A metal sheet 60 having a vertical folded edge is attached or applied to the bottom surface of one of the first metal tabs 6 of the grounded metal sheet 60 by double-sided tape or adhesive, and then directly pasted. On the surface of the recess 8 2 of the frame 80, a ground portion of the printed circuit board (not shouted) of the liquid crystal panel is then contacted with the first metal tab 62, and The screw 66 fixes the frame 80 of the bonded metal sheet 60 to the front frame 66 of a liquid crystal display, wherein when the % screw 66 is locked in the front frame 68 of the liquid crystal display and the frame 80, the The two metal tabs 6 4 contact the front frame 6 8 of the liquid crystal display by the screws 66 to complete the grounding structure of the printed circuit board of the liquid crystal display module and the front frame of the liquid crystal display. Referring now to FIG. 2, it is a carrier diagram along the la-la line direction after the completion of the grounding structure in FIG. 1, and the grounding portion of a printed circuit board 70 is also in contact with the first metal. The front piece 6 8 is contacted with the second metal tab 64 by the locking of the screw 66, thereby achieving the grounding of the printed circuit board 70 to the front frame 68. . Furthermore, when the screw 6 6 is

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00571.ptd Page 6 1275209 V. INSTRUCTIONS (3) When the front frame 6 8 is locked, it must be properly locked so that the front frame 68 can smoothly contact the second metal tab 64. And completing the purpose that the printed circuit board 70 is grounded to the front frame 68. Therefore, it should be understood that the screw must be properly locked to achieve the purpose of grounding the printed circuit board 70 to the front frame 68 of the liquid crystal display, which not only reduces the production efficiency, but also adds unnecessary human burden. When the ground metal piece is fixed to the groove of the frame by adhesive or double-sided tape, there is a disadvantage that it is easy to fall off. In view of the above, the present invention provides a grounding shrapnel fixing structure of a printed circuit board of a liquid crystal display module, which overcomes the prior art disadvantages described above, and at the same time enables the grounding metal piece to be mounted on the liquid crystal display module more quickly and easily. On the fixed frame of the group, the purpose of grounding the printed circuit board and the front frame of the liquid crystal display is achieved. SUMMARY OF THE INVENTION The object of the present invention is to provide a grounding dome fixing structure for a printed circuit board of a liquid crystal display module, so that the printed circuit on a liquid crystal display module and the front frame of a liquid crystal display can be easily grounded by a shrapnel. The purpose is to reduce the assembly cost of the liquid crystal display and effectively increase the production cost. In order to achieve the above object, the present invention provides a grounding shrapnel structure, which is formed by combining a grounding metal piece and a bonding member, wherein the grounding metal piece has a first metal piece and a second metal piece. And a piece of the elastic piece, the first metal piece and the second metal piece are integrally formed and form a vertical folding angle therebetween, and the first metal piece is provided with at least

00571.ptd Page 7 1275209 5. Invention Description (4) '*, a hole, the elastic piece is disposed on the second metal piece and folded outward by the second metal piece; and the joint member has an upper surface, a side surface, a concave guide groove, a pair of fixing clips and at least one protruding post, the concave guiding groove is disposed on the upper surface, the at least one protruding post is disposed on the concave guiding groove, and the pair is fixed a clip is disposed above the concave guide groove, so that the first metal tab can be easily introduced into the guide groove along the pair of fixing clips until the second metal joint contacts the joint member The first metal tab hole is sleeved on the protruding post at the same time, thereby completing the grounding elastic fixing structure, and the printed circuit board on the liquid crystal display module can be easily adopted by the grounding elastic fixing structure The ground is grounded on the front of a liquid crystal display. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 3 is a partially exploded perspective view showing a grounded structure of a printed circuit board (not shown) of a liquid crystal display module and a front frame of a liquid crystal display according to an embodiment of the present invention. The structure includes a grounding metal piece 10 and/or a bonding member 30, wherein the grounding metal piece 10 includes a first metal piece 12 and a second metal piece 14, the first metal piece 12 and the second metal The tabs 14 are integrally formed and form a vertical folding angle A therebetween. The first metal tab 12 has at least one hole 16 6 and the second metal tab 14 is provided with a spring piece 18 . One edge 20 of the elastic piece 18 is integrally formed with the second metal piece 14 , and the elastic piece 18 is bent outward by the second metal piece 14; the joint member 30 is formed on a fixed frame of a liquid crystal display. 40, which comprises a side surface 3 2 and an upper surface 34, the side surface 32 and the upper surface 34 respectively having a recess 3 3 and a concave guide 3 8 and forming a substantially vertical The joint edge 3 6 and the concave guide groove 3 8 have substantially the same width

() () 571.ptd page 8 1275209 5. Invention description (5), at or greater than the width of the grounding metal tab 10, the grounding metal tab 10 is placed on the joint member 30, The concave guide groove 38 has at least one protrusion 44 disposed thereon, and has an inlet 42 in the area of the joint edge 36, wherein the distance from the protrusion 44 to the joint edge 36 is substantially equal to the first a relative distance of the metal tab hole 16 to the folded corner position, and a pair of fixing clips 46, 48 projecting respectively above the two sides of the concave guide inlet 42; thereby the first metal The tab 12 is slid into the concave guide groove 38 by the guide groove inlet 42 along the lower side of the pair of fixing clips 4 6 , 4 8 until the second metal tab 14 enters the joint member The groove 3 3 of the side surface 3 2 of the 30, and the first metal tab hole 16 reaches the protrusion 44 and fits in the protrusion 44, so that the grounding metal piece 10 can be fixed to the liquid crystal. On the fixed frame 40 of the display. According to the grounding shrapnel fixing structure of the present invention, the shape of the first metal tab hole 16 is substantially the same as the shape of the wearing surface of the stud 44, so that the first metal tab hole 16 can be firmly sleeved. Into the stud 44, the third metal tab 12 is fixed in the guide groove 3' by the pair of fixing clips 46, 48, thereby completing the grounding shrapnel fixing structure of the present invention. In Fig. 4, it is a cross-sectional view along the line 3 a - 3 a after the completion of the grounding structure in Fig. 3, which also shows the grounding of the printed circuit of the liquid crystal display module. The portion of the liquid crystal display is in contact with the first metal interface 112, and the front panel of the liquid crystal display contacts the spring 18 of the second metal interface 14 to enable the printed circuit board 50 of the liquid crystal display module to be grounded. The liquid crystal display front frame 52. The grounding elastic piece fixing structure of the present invention is provided by the pair of fixing clips 46,

00571.ptd Page 9 1275209 V. Description of the Invention (6) 4 8, the grounding metal piece 10 can be easily introduced and fixed in the concave guiding groove 38, and 16 sets of holes are formed by the metal piece Into the studs 4 4 , the grounding metal piece 10 can be firmly fixed to the frame 40 . 5 is a further embodiment of the present invention, wherein the stud 45 has a chamfered surface facing the concave guide inlet 42 for guiding the first metal tab 1 2 into the concave guide 38. And when the front end edge of the first metal piece 12 reaches the chamfered surface, the metal tab hole 16 can be automatically or more easily inserted into the stud 45 along the chamfered surface to achieve the present invention. The purpose. The present invention has been disclosed in the foregoing embodiments, and is not intended to limit the scope of the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope is subject to the definition of the scope of the patent application attached. ~

。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Fig. 1 is a partially exploded perspective view showing the grounding structure of a printed circuit board of a liquid crystal display module of the prior art and a front frame of a liquid crystal display. Fig. 2 is a cross-sectional view taken along the line 1 a - 1 a after completion of the ground structure in Fig. 1, which also shows the configuration of a printed circuit board of a liquid crystal display module. Fig. 3 is a partially exploded perspective view showing the ground structure of a printed circuit board of a liquid crystal display module and a front panel of a liquid crystal display according to an embodiment of the present invention. Fig. 4 is a cross-sectional view taken along the line 3 a - 3 a after completion of the grounding structure in Fig. 3, which also shows the configuration of a printed circuit board of a liquid crystal display module.

Figure 5 is an exploded perspective view of a ground structure in accordance with another embodiment of the present invention. [Description of the figure] 10 Grounding metal piece 12 First metal piece 14 Second metal piece 16 18 Spring 20 Edge 32 Side surface 33 Side groove 34 Upper surface 36 Bonding edge 38 Concave guide groove 40 Fixed frame

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Claims (1)

1275209 6. Patent application scope i 1. A grounding shrapnel fixing structure for grounding a liquid crystal display module printed circuit board on a front panel of a liquid crystal display, comprising a grounding metal piece and a bonding member, wherein the grounding The metal sheet comprises: a first metal tab having at least one hole therein; a second metal tab integrally formed with the first metal tab and forming a vertical corner between them; and a spring piece One of the edges of the elastic piece is integrally formed with the second metal piece, wherein the elastic piece is bent by the second metal piece, wherein the bonding member is formed on a fixing frame of the liquid crystal display, and includes: a side surface; an upper surface forming a substantially perpendicular joint edge with the side surface; a concave guide groove on an upper surface of the joint member, the concave guide groove having a width substantially equal to or greater than a width of the first metal tab, and the concave guide groove has an inlet on the joint edge The at least one stud is disposed on the concave guide groove, wherein the distance from the protruding post to the edge is substantially equal to a relative distance from the first metal tab hole to the folded corner position; and a pair of fixed clips, The first metal tabs are respectively protruded into the guide groove from the lower side of the pair of fixed clips until the second portion protrudes from the upper side of the entrance of the concave guide groove; The metal tab contacts the side surface of the joint member, and the first metal tab hole is nested in the protruding column 00571.ptd Page 13 of 1275209 VI. The scope of application for patent ‘in order to form the fixed structure of the grounded metal sheet. 2. The grounding shrapnel fixing structure according to the first aspect of the patent application, wherein the first metal tab is connected to a grounding portion of a printed circuit board of the liquid crystal display module, and the elastic piece of the second metal tab is in contact with the liquid crystal A front frame of the display causes the printed circuit board to be grounded to the front frame. 3. The grounding shrapnel fixing structure according to the first aspect of the patent application, wherein the shape of the first metal tab hole is substantially the same as the cross-sectional shape of the stud in the concave guiding groove. 4. The grounding shrapnel fixing structure according to item 3 of the patent application scope, wherein the stud has a chamfered surface facing the entrance of the concave guiding groove. 5. The grounding shrapnel fixing structure according to the first aspect of the patent application, wherein the side surface of the joining member has a side groove having an area greater than or equal to the second metal joint 2, the side groove being disposed in the concave guiding groove The position j of the inlet is to receive the second metal tab. 00571.ptd第14页