KR100870831B1 - Zig for fabrication of back-light unit - Google Patents

Abstract

A jig for assembling backlight unit is provided to bond a reflection sheet and assemble various sized backlight unit by enabling a work table to be rotatable vertically and horizontally. A jig for assembling backlight unit(10) comprises a base plate(150), an upper support plate(110), a rotation support bar(140), a pair of the clamps(120), and the reflective sheet bonding mean(180). The upper support plate located in the base plate is installed to carry the magnetism in a portion at least in order to be rotatable of the surface the bottom chassis of the backlight unit. The rotation support bar supports are installed between the upper base plate and the upper support plate and supports the upper support plate to be rotatable.

Description

Jig for assembling backlight unit {ZIG FOR FABRICATION OF BACK-LIGHT UNIT}

1 is a perspective view showing a backlight unit according to the prior art

2 is a perspective view of a jig for assembling a backlight unit according to the present invention;

3 is a front view of a jig for assembling a backlight unit according to the present invention.

4 is a side view showing an example of the operation of the jig for assembling the backlight unit according to an embodiment of the present invention.

5 is a side cross-sectional view of a backlight unit assembly having a separate bottom chassis structure;

6 is an enlarged view of a reflective sheet bonding means of the backlight unit according to the present invention;

7 is a perspective view showing an operation example of a jig for assembling a backlight unit according to an embodiment of the present invention;

* Explanation of symbols for the main parts of the drawings *

10: backlight unit 100: jig for assembling backlight unit

110: upper support plate 120: clamp

130: rotation axis 140: rotation support

150: base support plate 170: jig for alignment

180: reflective sheet bonding means 181: moving means

182: contact means 191: flat support

192: slope support 193: slope support clamp

210: conventional jig plate 220: fixing member

The present invention relates to a jig for assembling a backlight unit of a liquid crystal display device, and more particularly, to allow rotation in the horizontal and vertical directions to smoothly work the front and rear parts of the backlight unit having a separate bottom chassis structure. It is possible to perform, and relates to a jig for assembling a backlight unit that can form a smoothly bonded portion of the reflective sheet and the bottom chassis.

The most widely commercialized and practical liquid crystal display device in the flat panel display field requires a light emitting device called a back light unit because it does not emit light. The performance of the liquid crystal display device is not only its own characteristics, but also the backlight. It depends a lot on the performance of the unit.

The backlight unit is largely composed of a light guide plate, an optical film, a lamp assembly, and a mold frame. The liquid crystal display device is classified into a direct method and an edge method according to the lamp position of the backlight unit.

In the edge-type backlight unit, a lamp assembly is installed on the side of the light guide plate, and includes a lamp that emits light and a lamp reflection sheet that is formed in a shape surrounding the lamp to reflect light emitted from the lamp to the light guide plate.

Conventionally, as shown in FIG. 1, a jig for assembling the edge type backlight unit may include a backlight unit configured to mount a backlight unit having a predetermined size on a plate 210 supporting the backlight unit 10. 10) is configured to include a fixing member 220 for fixing each corner of.

However, when the assembly jig of the backlight unit is used, only the backlight unit of a specific size can be worked by the fixed position of the fixing member 220, and there is a problem in that it cannot cope with backlight units of various sizes.

On the other hand, Republic of Korea Utility Model Registration No. 351392 forms a plurality of variable fixing holes in the plate 210 to change the position of the fixing member 220 by using a tool such as a driver to fit the size of the backlight unit By moving the fixing member 220 as well, the jig for assembling a backlight unit having a structure in which the lower surface of the plate 210 can rotate has been proposed.

However, the jig also needs to change the position of the fixing member 220 in accordance with the size of the backlight unit 10 by using a tool such as a driver.

In addition, even if the plate 210 can be rotated, if only the horizontal rotation, the back work such as wiring of the backlight unit is difficult, and when working in a state in which the backlight unit is in a horizontal plane, the worker is working in an uncomfortable posture. This reduces work efficiency.

In addition, when the process of adhering the reflective sheet to the bent portion of the bottom chassis by hand, the reflective sheet is not properly adhered to the inner surface of the bottom chassis, so that the reflection efficiency of the lamp light is lowered.

In addition, the conventional jigro is performed after the assembly operation is completed, the lighting inspection and the viewing angle inspection in a separate process, there is a problem that a work loss occurs.

The present invention is to solve the above problems, an object of the present invention is to be able to rotate vertically and horizontally to facilitate the back and side work of the backlight unit, it is possible to assemble a backlight unit of various sizes on the work table, and effectively reflects It is to provide a jig for assembling the backlight unit that can adhere the sheet.

In addition, it is an object of the present invention to provide a jig for assembling a backlight unit capable of performing a lighting test and a viewing angle test on the spot without the need for a separate process after completion of the assembly process.

According to the jig for assembling the backlight unit according to the present invention, a back light unit assembly jig for assembling a backlight unit having an internal structure in a state where a metal bottom chassis is coupled, the jig for assembling the base plate; An upper support plate having a magnet on at least a portion of the surface to fix the bottom chassis of the backlight unit and being rotatably spaced from the base plate; A rotation support installed between the base plate and the upper support plate to support the upper support plate to be rotatable; It is provided on the left and right sides of the surface portion of the upper support plate comprises a pair of clamps for clamping the backlight unit.

In addition, the upper support plate is disposed on the lower end of the upper support plate to move the contact member and the close contact member in close contact with the side wall of the bottom chassis so as to adhere the reflective sheet to the inner surface of the bottom chassis of the backlight unit. It is preferable to further include a reflecting sheet adhesive means provided with the contact sheet to efficiently adhere the reflecting sheet to the batam chassis.

Here, the movement means is composed of a movement guide, a movement means body and a connection member for connecting the movement means body and the contact member, the contact member is provided with a roller rotatably coupled to one end of the connection member. It is preferable for convenient reflection sheet contact.

In addition, the upper support plate further comprises a power supply for supplying power to the backlight unit to enable the lighting test after the internal configuration of the backlight unit is assembled in the state where the battam chassis is supported on the upper support plate It is preferable for shortening the working time.

In addition, the upper support plate is preferably provided with a through hole to perform the back operation of the backlight unit.

In addition, the bottom chassis of the backlight unit has a separate bottom chassis structure, the jig for assembling the backlight unit is magnetic and is spaced apart by the width of the backlight unit on the left and right sides of the upper end of the upper support plate, the separation It is preferable for the rear assembly operation of the separate bottom chassis further comprising a pair of alignment jig for coupling and supporting the main bottom chassis and the auxiliary bottom chassis of the back light unit.

In addition, at least one of each pair of alignment jig or clamp is preferably configured to be movable in the left and right directions so that the backlight unit of various widths can be mounted.

Here, the base plate is preferably provided with a horizontal rotating shaft at the lower end to be rotatable in the horizontal direction.

In addition, the base plate is disposed on one side on the base plate, it is preferable to further include a flat support for limiting the rotation of the upper support plate for the stable operation by the fixing of the upper support plate.

The base plate may further include a slope support disposed between the pivot support and the planar support to limit rotation of the upper support plate to maintain the upper support plate in a sloped state by the fixing of the upper support plate. It is desirable for stable operation.

In addition, the base plate is installed on the opposite side of the planar support centered around the rotational support, the upper support further comprises a slope support clamp for clamping the lower end of the upper support plate to support the slope state for the front assembly work It is preferable for stable operation by fixing of the plate.

Hereinafter, a jig for assembling a backlight unit according to the present invention will be described in detail with reference to the accompanying drawings.

First, a configuration of a jig for assembling a backlight unit according to the present invention will be described with reference to FIGS. 2 and 3.

2 and 3, the jig 100 for assembling the backlight unit according to the present invention includes a base plate 150; An upper support plate (110) having magnetic properties on a surface to seat the backlight unit (10) and installed to be rotatable and spaced apart from the base plate (150); A pair of clamps 120 disposed at left and right sides of the upper support plate 110 to fix the backlight unit 10 as an object; A rotation support 140 installed in a vertical direction on the surface of the base plate 150 to support the upper support plate 110 to rotate in the Z direction shown in FIG. 2; In order to evenly adhere the reflective sheet to the bottom chassis of the backlight unit 10, the reflective sheet bonding means 180 is disposed at the bottom of the upper support plate 110 so as to be in close contact with the side wall of the bottom chassis.

The base plate 150 is installed to be perpendicular to the base plate 150, and a flat support 191 for supporting in a flat state by limiting the rotation of the upper support plate 110; A slope support clamp 193 installed on an opposite side of the planar support 191 around the pivot support 140 and clamping the upper support plate 110 for a front assembly operation and supporting the slope in a state of slope; A slope support 192 installed between the planar support 191 and the rotation support 140 to support the upper support plate 110 for a rear assembly operation; It is provided with a horizontal rotating shaft (150a) to be rotated in the Y direction as shown in Figure 3 so that the operator can perform the work without moving in a certain working position.

The upper support plate 110 has a through hole 112 formed for assembling the rear part of the backlight unit 10 and a power supply 113 for supplying power to the backlight unit 10 on its surface, and the rear surface thereof. 2 includes a vertical rotation shaft 130 inserted and supported by the rotation support 140 to allow rotation in the Z direction of FIG. 2.

In addition, the upper support plate 110 in the process of combining the bottom chassis separated from each other in order to apply to the structure of the backlight unit 10 of the split bottom chassis structure to be described later, to perform the operation by supporting the bottom chassis separated from each other. A pair of alignment jig 170 may be provided on the upper end to retain the magnetic force.

In addition, the clamp 120 or the alignment jig 170 is X, at least one of the pair of clamp 120 or alignment jig 170 is X as shown in Figure 3 so that it can be applied to objects of various sizes It is configured to move horizontally in the direction.

The rotation support 140 has a hole formed at a predetermined position so that the vertical rotation shaft 130 is inserted and supported to rotate.

The fastening portion of the vertical rotation shaft 130 and the rotation support 140 may be configured to stay in that state when the upper support plate 110 stops at a predetermined working position during the rotation while having a constant frictional force. In order to perform the operation with the upper support plate 110 in the position (S1) of Figure 4 a for each, the flat support 191 for supporting in a flat state by limiting the rotation of the upper support plate 110, When the work is performed in the position (S2) of Figure 4b, the slope support clamp 193 for supporting it, and when performing the work in the position (S4) of Figure 4d, the slope support for supporting this ( 192 may be provided. The method of using the backlight unit assembly jig 100 according to the present invention will be described on the assumption that the flat support 191, the slope support 192, and the slope support clamp 193 are provided.

FIG. 6A is a side view of the reflective sheet bonding means 180, and FIG. 6B is a sectional view of the reflective sheet bonding means 180 showing a cross section taken along the line AA 'of FIG. 6A.

As shown in Figure 6a and 6b, the reflective sheet bonding means 180 is composed of a moving means 181 and the contact means 182, disposed on the lower end of the upper support plate 110 is shown in FIG. It is configured to enable horizontal movement in the X direction.

In addition, the movement means 181 of the reflective sheet bonding means 180 is installed at the lower end of the upper support plate 110, the movement guide 181a for guiding the movement of the reflective sheet bonding means 180, the movement means Body 181b and the connecting member 182 and the connecting member 181c for connecting the moving means body 181b.

Next, a method of using the jig 100 for assembling the backlight unit according to the present invention will be described.

5 is a side cross-sectional view of a backlight unit assembly 10 of a separate bottom chassis structure applied as an object of a jig 100 for assembling a backlight unit according to the present invention.

As shown in FIG. 5, the backlight unit assembly 10 of the split bottom chassis structure, which is applied as an object of the present invention, forms a bottom chassis by combining the main bottom chassis 1 and the auxiliary bottom chassis 2. Attaching the reflective sheet 3, and coupling the lamp assembly 4 into the U-shaped opening (side wall) formed at the bottom of the auxiliary bottom chassis 2 and the main bottom chassis 1 which is symmetrical thereto, and then the light guide plate After installing (5), it is formed by assembling the diffusion sheet 7 and the upper frame (not shown) thereon.

A detailed assembly process will be described based on the contents shown in FIGS. 4A to 4D.

First, as shown in FIG. 4A, in a state where the upper support plate 110 is fixed to the horizontal state S1 using the flat support 191, the main bottom chassis 1 is seated thereon, and the main The reflective sheet 3 is attached to the inner surface of the bottom chassis 1.

The problem in the above operation is that the U-shaped opening of the main bottom chassis 1 is too small, and when the reflective sheet 3 is manually attached, the reflective sheet 3 is lifted up and is poorly bonded. Is a lot of points. In the present invention, in order to solve this problem, the reflective sheet bonding means 180 is introduced according to the working example shown in FIGS. 6A and 6B.

As shown in FIG. 6A, in performing the process of attaching the reflective sheet 3 to the inner surface of the main bottom chassis 1, the contact member 182 may attach the reflective sheet 3 to the main bottom chassis. 1) is located at the corner of the U-shaped opening of the main bottom chassis (1) in close contact with.

Next, as shown in Figure 6b showing a cross-sectional portion of the reflective sheet bonding means 180 cut the AA 'surface of Figure 6a, the moving means body 181b is moved horizontally in the X direction along the movement guide (181a) In this case, as the connecting member 181c rotates the contact member 182 in the form of a roller connected to the moving means body 181b, the reflective sheet 3 is brought into close contact with the bottom chassis 1. By performing this operation, the reflective sheet 3 can be neatly adhered to the bottom chassis 1 without lifting.

After the attachment of the reflective sheet 3 is finished, the lamp assembly 4 is combined.

This operation is, as shown in Figure 4b, after rotating the upper support plate 110 in the Z direction to form a slope of a predetermined angle from the horizontal plane, the lower surface of the upper support plate 110 of the support clamp 193 It is fixed to maintain the slope state by clamping on a protrusion (not shown) protruding in the (S2 state).

Then, the base plate 150 is rotated in the Y direction by using the horizontal rotating shaft 150a so that the front end portion of the main bottom chassis 1 can be positioned in front of the operator, and the reflective sheet 3 and the lamp in advance. The auxiliary bottom chassis 2 on which the assembly 4 is installed is coupled in the direction of the arrow shown in the tip portion of the main bottom chassis 1. In this process, a pair of alignment jig 170 magnetic materials installed on the upper end of the upper support plate 110 are attached to both sides of the main bottom chassis 1 and the auxiliary bottom chassis 2 to maintain and fix the coupling between them. Let it be.

After the work is finished, as shown in FIG. 4D, when the slope support clamp 193 and the upper support plate 110 are released, the upper support plate 110 is rotated in the Z direction. The rotation of the support plate 110 is limited by the slope zone 192, whereby the rear portion of the upper support plate 110 is exposed at a predetermined angle from the vertical direction toward the worker (S4 state).

In this state, the operator attaches a joining aluminum (Al) tape to the separation line of the main bottom chassis 1 and the auxiliary bottom chassis 2 to couple them. The back operation may be performed through the through hole 112 formed in the upper support plate 110 without the alignment jig 170.

Thereafter, the upper support plate 110 is fixed to the planar state S1 of FIG. 4A and then the light guide plate 5 and the diffusion sheet 7 are installed.

The subsequent process is a screen lighting test, the screen lighting test is a plug (P) provided at the end of the lamp wire 6 shown in Figure 3 to the power supply 113 installed on the side of the upper support plate 110 By connecting the internal configuration of the backlight unit 10, the screen lighting test and viewing angle inspection is performed.

It is also a feature of the present invention that the power supply 113 is integrated on the assembly jig 100 to perform the screen lighting test.

Next, a process of aligning the wires attached to the upper and lower ends of each of the main bottom chassis 1 and the auxiliary bottom chassis 2 is performed.

First, as shown in FIG. 7, the backlight unit 10 is separated from the upper support plate 110 and rotated 90 degrees, and then the lower surface of the backlight unit 10 is fixed using the clamp 120.

By rotating the upper support plate 110 and the base plate 150 in the form (S4) of FIG. 4 d so that the wire 6 of the backlight unit 10 exposed through the operation can come to the front of the operator, the wire (6) Perform the sorting work.

It has been described in detail above with reference to a preferred embodiment of the present invention. However, the scope of the present invention is not limited to the above embodiments, but may be embodied in various forms of embodiments within the appended claims. Without departing from the gist of the invention as claimed in the claims, any person skilled in the art to which the invention pertains is considered to be within the scope of the claims of the invention to the various possible modifications possible.

As described above, according to the jig for assembling the backlight unit according to the present invention, the assembly of the backlight unit having various sizes may be performed by the upper support plate having magnetic properties.

In addition, the upper support plate that can be rotated in the vertical direction and the base plate that can be rotated in the horizontal direction can perform a convenient assembly work without changing the position of the operator, and further has the advantage of reducing the work time.

In addition, it is possible to apply a reflective sheet adhesive means for efficient and clean bonding of the reflective sheet.

In addition, the power supply unit is installed in the assembly jig has the advantage that can perform the lighting test and viewing angle inspection.

Claims (11)

In the backlight unit assembly jig for assembling the backlight unit is installed in the state that the metal bottom chassis is coupled, A base plate; An upper support plate having a magnet on at least a portion of the surface to fix the bottom chassis of the backlight unit and being rotatably spaced from the base plate; A rotation support installed between the base plate and the upper support plate to support the upper support plate to be rotatable; A pair of clamps installed at left and right sides of the surface portion of the upper support plate to clamp the backlight unit; Reflecting sheet adhesive means disposed on the lower end of the upper support plate and provided with a contact member that is in close contact with the side wall of the bottom chassis and the sliding means for sliding the contact member so as to adhere the reflective sheet to the inner surface of the bottom chassis of the backlight unit Jig for assembling a backlight unit comprising a. delete The method of claim 1, The moving means comprises a moving guide, a moving means body and a connecting member connecting the moving means body and the contact member, wherein the contact member is provided with a roller rotatably coupled to one end of the connection member. Jig for assembling backlight unit. The method of claim 3, The upper support plate further comprises a power supply for supplying power to the backlight unit to enable the lighting test after the internal configuration of the backlight unit is assembled in the state that the battam chassis is supported on the upper support plate Zig for assembling the backlight unit. The method of claim 4, wherein The upper support plate is a jig for assembling a backlight unit, characterized in that it has a through hole to perform the back operation of the backlight unit. The method of claim 5, The bottom chassis of the backlight unit has a separate bottom chassis structure, the jig for assembling the backlight unit is magnetic and is spaced apart by the width of the backlight unit on both left and right sides of an upper end of the upper support plate, and the separated backlight A jig for assembling a backlight unit further comprising a pair of alignment jigs for coupling and supporting the main bottom chassis and the sub bottom chassis of the unit. The method of claim 6, At least one of the pair of alignment jig or clamp each jig for assembly of the backlight unit, characterized in that the movable in the horizontal direction so that the backlight unit of various widths can be mounted. The method according to any one of claims 1 and 3 to 7, The base plate is jig for assembling the backlight unit, characterized in that it has a horizontal axis of rotation at the lower end to be rotatable in the horizontal direction. The method of claim 8, The base plate is disposed on one side on the base plate, jig for assembling the backlight unit further comprises a flat support for limiting the rotation of the upper support plate. The method of claim 9, The base plate may further include a slope support disposed between the pivot support and the planar support to limit the rotation of the upper support plate to maintain the upper support plate in a sloped state. . The method of claim 10, The base plate is installed on the opposite side of the flat support center around the pivot support, and further includes a slope support clamp for clamping the lower end of the upper support plate to support the slope state for the front assembly work Jig for unit assembly.

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