KR100736669B1 - Power connection structure of direct backlight device - Google Patents

Abstract

The present invention relates to a power supply structure of a direct type backlight device that connects an electrode of a fluorescent lamp and an output terminal of an inverter located on a rear surface of a cover bottom, and is installed under the cover bottom to surround and electrically connect a conductor of the fluorescent lamp. A clip electr rod having a connection terminal bent downward in an inverter direction, and an inverter output terminal electrode coupled to the inverter and connected to a connection terminal of the clip electr rod; The fluorescent lamp is configured to be directly connected to the inverter without the need for a lead wire by contacting the connection terminal and the inverter output terminal electrode.

In other words, the power supply structure of the direct type backlight device according to the present invention is directly connected to the inverter output terminal electrode by the connection terminal of the clip-electrode projecting downward vertically, the inverter located on the back of the electrode of the fluorescent lamp and the cover bottom No separate leadwire is required to electrically connect the In addition, it is possible to prevent malfunction of the backlight device due to damage that may occur due to the flow of the lead wire.

Description

Power connection structure of direct backlight unit {Electrode structure of Direct type Backlight unit}

1 is a plan view showing a direct type backlight device using an external electrode fluorescent lamp according to the prior art,

Figure 2 is a side cross-sectional view showing a direct type backlight device using an external electrode fluorescent lamp according to the prior art,

3 is a partial perspective view showing a structure of a direct type backlight device using an external electrode fluorescent lamp according to an embodiment of the present invention;

4 is a partial perspective view showing a structure of a direct type backlight device using an internal electrode fluorescent lamp according to an embodiment of the present invention;

Figure 5a, b is a perspective view showing the structure of the internal electrode fluorescent lamp according to an embodiment of the present invention,

6 and 7 are views illustrating a direct backlight device and a power connection structure using an external electrode fluorescent lamp according to [Example 1] of the present invention;

8 and 9 are views illustrating a direct backlight device and a power connection structure using an internal electrode fluorescent lamp according to [Example 1] of the present invention;

10 and 11 are diagrams illustrating a direct type backlight device and a power connection structure according to [Example 2] of the present invention;

12 and 13 are diagrams illustrating a direct type backlight device and a power connection structure according to [Example 3] of the present invention;

14 and 15 are diagrams showing a direct type backlight device and a power connection structure according to Embodiment 4 of the present invention.

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

10: Cover Bottom 20: Side Bottom

30,30 ': Fluorescent lamp 40,40': Clip electric rod (electrode)

44,44 ': Connection terminal 51: Inverter output terminal electrode

50: inverter 60: lead wire

The present invention relates to a backlight device, and more particularly, to a power connection structure of a direct type backlight device connecting an electrode of a fluorescent lamp and an output terminal of an inverter located on a rear surface of a cover bottom.

Recently, as the information society develops, the demand for display devices is increasing in various forms. Accordingly, liquid crystal display (LCD), plasma display panel (PDP), electro luminescent display (ELD), and vacuum fluorescent display (VFD) Various flat panel display devices have been researched and developed.

Here, LCD is widely used as a mobile flat panel display device because of its excellent image quality, light weight, thinness, and low power consumption, and is particularly used as a laptop, computer monitor, and TV monitor.

However, LCDs do not emit light by themselves and require a separate external light source to realize high quality images. Therefore, the LCD structure further includes a backlight unit as a light source of the liquid crystal display panel in addition to the liquid crystal display panel, so that the backlight unit uniformly supplies a high brightness light source to the liquid crystal display panel, thereby realizing high quality images.

In general, a backlight of a liquid crystal display is classified into an edge-lighting and a direct-lighting backlight according to a method of disposing a light source, and as a light source, a CCFL (Cold Cathode Fluorescent Lamp), Cylindrical fluorescent lamps such as Hot Cathode Fluorescent Lamp (HCFL) and External Electrode Fluorescent Lamp (EEFL), Light Emitting Diode (LED) devices, Electro Luminescence (EL) devices and the like are used.

Due to its relatively thin thickness, the side backlight is mainly used in LCDs for thinning portable communication devices, and the direct backlight is mainly used in LCDs for large screens such as notebooks and TV monitors due to high light efficiency. In particular, recently, flat panel display devices such as TVs or computer monitors using LCDs are becoming larger and larger in size, and thus, direct-type backlight devices are increasing in use and being developed in various forms.

Fluorescent lamps are often used as light sources in large backlight devices, and fluorescent lamps include an external electrode fluorescent lamp in which an electrode for power connection is formed outside the lamp and an electrode inside the lamp. It can be classified into an internal electrode fluorescent lamp, and a cold cathode fluorescent lamp (CCFL) or a hot cathode fluorescent lamp (HCFL) corresponds to an internal electrode fluorescent lamp.

1 and 2 show the general structure of a direct type backlight device using a fluorescent lamp according to the prior art.

As illustrated, the direct type backlight device drives the fluorescent lamp 30 and the fluorescent lamp 30 for supporting the fluorescent lamp 30 and the fluorescent lamp 30 arranged in parallel in the cover bottom 10. Inverter 50, and the common electrode 40 is configured to include a power cable 60 for electrically connecting the inverter 50.

Here, the fluorescent lamp 30 is a light source in a backlight device, and the electrodes are provided on both sides of the outside or inside to receive power, and in the embodiments of FIGS. 1 and 2, the fluorescent lamp 30 is formed of an external electrode fluorescent lamp. The electrode 31 is provided and fixed to the common electrode 40 fixedly attached to the inner surface of the cover bottom 10 while being electrically contacted.

The common electrode 40 is a metal conductor for supplying power to the fluorescent lamp 30, and is provided with a holder portion 42 for supporting the lamp 30 to function as a lamp holder. It is fixedly attached by screwing to the cover bottom 10 through a hole formed in one side of the electrode 40.

In general, a direct backlight device having such a structure includes an inverter 50 disposed on a rear surface of a cover bottom 10. In order to electrically connect the inverter 50 and the common electrode 40, a lead wire, which is a separate power cable ( 60) should be provided. Here, one side of the lead wire 60 is provided with a connecting portion 61 for screwing together at the site where the common electrode 40 and the cover bottom 10 are coupled, and the other side is for coupling with the inverter 50. The connector 62 is provided.

That is, the conventional direct type backlight device has to be provided with a separate lead wire as shown in order to apply power to the lamp, the structure of the backlight device is complicated. In addition, in the process of attaching and detaching the lead wire, the connection part is easily damaged by disconnection, etc. In this case, there is a problem in that the lamp cannot be driven.

The present invention has been proposed to solve the above problems, in a direct type backlight device using a fluorescent lamp, a power supply connection for supporting a plurality of fluorescent lamps arranged in parallel and electrically connecting the electrodes of the fluorescent lamp Since the terminal is directly connected to the inverter located on the backside of the cover bottom, a separate lead wire is not required, thereby providing a power connection structure of a direct type backlight device that is simple in structure and prevents malfunction due to damage of the lead wire. For the purpose of

In order to achieve the above object, the present invention provides a power connection structure for electrically connecting a fluorescent lamp and an inverter in a direct backlight device, the fluorescent lamp being fixedly supported and installed under the cover bottom to electrically connect the fluorescent lamp. A clip electr rod having a connection terminal bent downward in an inverter direction, and an inverter output terminal electrode coupled to the inverter and connected to a connection terminal of the clip electr rod; The fluorescent lamp is configured to be directly connected to the inverter without the need for a lead wire by contacting the connection terminal and the inverter output terminal electrode.

In the above-described configuration, the clip electrorod is characterized by comprising a connection terminal for applying power to a plurality of external electrode fluorescent lamps in common and an inverter output terminal electrode corresponding thereto.

In the above-described configuration, the clip electrorod is characterized in that it comprises a connection terminal for applying power to a plurality of internal electrode fluorescent lamps individually, and the inverter output terminal electrode corresponding thereto.

In addition, the inner electrode fluorescent lamp has a cylindrical shape in which one side is coupled with the glass tube and the other side is fitted with the lead wire of the inner electrode, and a protective tube made of a buffer material for protecting the glass tube is fitted to both sides, and the lead wire is connected to the protective tube. And a weld-coupled conductor is fitted to prevent the glass tube from being damaged by the conductor and the clip electrod.

In addition, the protective tube wraps the lead wires of the glass tube and the inner electrode with different diameters, respectively, and the outside is formed in two stages so that the fluorescent lamp assembled in the backlight does not flow in the axial direction. It is characterized in that it is configured to prevent damage to the glass tube and the sealing portion of the internal electrode projecting portion by the external force applied to the lead wire during coupling.

In the above-described configuration, the connecting terminal of the clip electr rod is bent vertically downward, and the inverter output terminal electrode is composed of a receptacle having a recessed portion upward, and the connecting terminal of the clip electr rod is vertically connected to the terminal of the inverter output terminal electrode. It is characterized in that the resilient fitting is connected to the receptacle.

In addition, the connection terminal of the clip electric rod is vertically bent downward and the end is bent horizontally, and the inverter output terminal electrode is composed of a receptacle having a recessed portion formed in the side, the connection terminal of the clip electric rod horizontally the inverter output end It is characterized in that the elastic fitting is connected to the receptacle of the electrode.

In addition, a hole is formed at an end of the connecting terminal of the clip electric rod which is vertically bent downward and is horizontally bent again, and a hole corresponding to the hole of the connecting terminal is formed at the inverter output terminal electrode. Connection terminal and inverter output terminal electrode are fastened and connected by a screw bolt.

In addition, the connection terminal of the clip-electrode bent vertically downward, the first connection portion which is partially cut and bent horizontally, and the second connection portion extending downward and bent in parallel at a predetermined interval to the first connection portion; And a third connection part extending from the second connection part to be bent upward and the end part is bent downward again, wherein each connection part is provided with a contact part for contact with the inverter output end electrode, and the inverter output end electrode is connected to the third connection part. A double flat plate having a hole in the center of the connecting portion can be inserted and connected, and the clip electric rod connecting terminal and the inverter output terminal electrode are connected by clip fastening.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a view showing a structure of a backlight device using an external electrode fluorescent lamp according to an embodiment of the present invention.

Referring to FIG. 3, a backlight device using an external electrode fluorescent lamp according to an exemplary embodiment of the present invention fixes a plurality of external electrode fluorescent lamps 30 and fluorescent lamps disposed in parallel in the cover bottom 10 and the cover bottom. It consists of a clip electrod 40 that is supported and electrically connected to the external electrode, the side bottom 20 is fixed to the clip electrod, and comprises an inverter 50 is not shown but disposed on the back of the cover bottom do.

In more detail, the above-described cover bottom 10 is for accommodating components such as the fluorescent lamp 30 therein, and an inner surface is provided with a reflective sheet for reflecting light emitted from the fluorescent lamp 30 upward. It is.

The external electrode fluorescent lamp 30 is a light source of the backlight device and forms a structure in which a plurality of the external electrode fluorescent lamps 30 are connected in parallel in the cover bottom 10. In addition, the external electrode 31 is formed on both sides of the lamp 30 and generates an electric field inside the fluorescent lamp 30 through the electrode 31 to emit visible light.

The clip electrod 40 described above is for supporting the fluorescent lamps 30 arranged in parallel, and is connected to the pair of frames 41 integrally and lowered from one side of the holder 42 and bent upward. It consists of a connection terminal 44 bent to the support portion 43, bent upward from the other frame.

Here, the holder portion 42 is vertically bent upward in a clamp shape while connecting a pair of frames 41 to be configured to be coupled to the external electrode 31 of the fluorescent lamp 30 to be coupled to the clamp, the connection terminal ( 44 is vertically bent downward from one side (inner) frame to be connected to the inverter 50 located on the back of the cover bottom 10, in this case the connection terminal 44 is coupled to the inverter 50 Inverter output terminal electrode 51 is provided together. In addition, the support 43 is to support the end of the fluorescent lamp 30 so that the fluorescent lamp 30 is not vertically bent upward from the other (outer) frame to protrude out of the frame 41, the fluorescent lamp 30 To be fitted into the holder 42 of the clip electrod.

On the other hand, the clip electric rod 40 is made of a conductive metal material to electrically connect the inverter 50 and the fluorescent lamp 30, attached to the non-conductive and heat-resistant side bottom (20) and finally cover It is configured to be coupled with the bottom (10).

The above-described side bottom 20 is for attaching the clip electric rod 40, and the through-hole 21 is formed in the side bottom 20 so that the connection terminal 44 of the clip electric rod can protrude downward. do. The clip electric rod 40 is attached to the side bottom 20 while the connection terminal 44 of the clip electric rod penetrates the through hole 21, and the side bottom 20 is coupled to the cover bottom 10. do.

In the exemplary embodiment of the present invention, the clip electrod 40 is illustrated as being attached to a separate side bottom 20 and coupled to the cover bottom 10, but directly to the insulating cover bottom 10 according to the overall structure of the backlight. It may be attached and combined.

4 is a view showing a structure of a backlight device using an internal electrode fluorescent lamp according to an embodiment of the present invention, Figure 5a, b is a perspective view showing the structure of the internal electrode fluorescent lamp.

Referring to FIG. 4, a backlight device using an internal electrode fluorescent lamp according to an exemplary embodiment of the present invention includes a plurality of internal electrode fluorescent lamps 30 ′ disposed in parallel in the cover bottom 10 and the cover bottom, and each of the fluorescent lamps. An inverter which is fixedly supported by the lamp and electrically connected to the internal electrode of the fluorescent lamp 40 'and the side bottom 20 to which the clip electric rod is fixedly attached, and is not shown, but an inverter disposed on the rear surface of the cover bottom. It consists of 50.

The backlight device using the internal electrode fluorescent lamp has a similar structure to the backlight device using the external electrode, and there is a difference in the structure of the fluorescent lamp which is the light source and the clip electric rod coupled to apply power to the fluorescent lamp.

The above-described internal electrode fluorescent lamp is a light source of the backlight device, and has a structure in which a plurality is arranged in parallel in the cover bottom 10, and in the embodiment of the present invention, it is composed of a cold cathode fluorescent lamp (CCFL). .

Referring to FIGS. 5A and 5B, the cold cathode fluorescent lamp 30 ′ according to the exemplary embodiment of the present invention will be described in detail. On the both sides of the glass tube 31 ′, the lead wires 32 ′ may protrude to the outside. ) Is provided, the outer surface of the glass tube 31 'is coupled to the protective tube 34' of the buffer material for protecting the glass tube, the protective tube 34 'for coupling with the lead wire 33' of the internal electrode The conductor 35 'is configured to be coupled.

The protective tube 34 'is to prevent the glass tube 31' from being damaged by the friction with the metal conductor 35 ', and the glass tube 31' and the lead wire 33 'may be simultaneously wrapped and protected. It is formed in two stages with different diameters so as to fit the glass tube and lead wires.

That is, one side is combined with the glass tube 31 'and the other side has a cylindrical shape that is fitted with the lead wire 33' of the inner electrode, and is formed in two stages that respectively wrap the lead wires of the glass tube and the inner electrode with different diameters. In order to prevent the fluorescent lamp 30 'assembled in the backlight from flowing in the axial direction, the internal electrode is applied by an external force applied to the lead wire 33' when the fluorescent lamp 30 'and the clip electric rod 40' are coupled to each other. Prevent damage to the glass tube and sealing of the protrusions.

In addition, the conductor 35 'is provided with a semi-cylindrical terminal for coupling with the lead wire 33' of the internal electrode in a cylindrical body in which both sides are open and one side of the circumferential surface is cut, and the terminal and the lead wire are welded and coupled. Is configured to be electrically connected by.

Referring to FIG. 4 again, the aforementioned clip electric rod 40 'is for supporting the internal electrode fluorescent lamp 30', and a holder part 42 'for supporting the fluorescent lamp is provided on the upper side and the lower side. Is provided with a connection terminal 44 'for connection to the inverter.

A plurality of fluorescent lamps 30 'arranged in parallel with each clip electro rod 40' of this structure are fitted and coupled, and each clip electro rod 40 'is directly connected to each inverter located at the rear of the cover bottom. It is configured to be connected.

Hereinafter, various power connection structures according to embodiments of the present invention will be described in detail with reference to [Example 1] to [Example 4]. However, the present invention is not limited to these embodiments without departing from the scope of the claims, and various modifications may be made by those skilled in the art to which the present invention pertains without departing from the technical spirit of the present invention. Can be implemented.

Example 1

6 to 9 are diagrams illustrating a direct type backlight device and a power supply structure according to [Example 1] of the present invention. FIGS. 6 and 7 are external electrode fluorescent lamps, and FIGS. 8 and 9 are internal electrode fluorescent lamps. The back light device and the power supply connection structure are shown, respectively.

As shown in FIG. 6 and FIG. 7, the power connection structure for the external electrode fluorescent lamp according to the first embodiment of the present invention is connected to a pair of frames 41 disposed inside and outside, and the holder is bent upward. The clip electric rod having a portion 42, a connecting terminal 44 bent vertically downward in one side (inner) frame, and a support 43 for vertically bending upward in the other (outer side) frame to position the fluorescent lamp ( 40 is coupled to the inverter is composed of an inverter output terminal electrode 51 which can be connected to the connecting terminal 44 of the clip electrod from the upper side.

Here, a plurality of clip electrode rods 40 for external electrode fluorescent lamps are connected in parallel, and as shown in FIG. 7, the connection terminals 44 are plate-shaped and are bent vertically downward in one frame. The inverter output terminal electrode 51 is a receptacle electrode, and is configured such that the concave portion 52 into which the connection terminal 44 is fitted is directed upward, and is coupled to the inverter 50.

By this structure, the end of the connection terminal 44 vertically protruding to the rear surface of the side bottom 20 is fitted into the receptacle recess 52 of the inverter output terminal electrode 51 positioned on the rear surface of the cover bottom 10. It can be easily contacted, and as a result, the fluorescent lamp and the inverter can be directly connected without a lead wire.

On the other hand, the power connection structure for the internal electrode fluorescent lamp according to [Example 1] of the present invention of Figures 8 and 9, the holder portion 42 'bent upward to support the fluorescent lamp, the inverter as shown Inverter output terminal electrode which can be coupled to the clip electrod 40 'having a connection terminal 44' bent downward to be connected to the inverter and the connection terminal 44 'of the clip electric rod can be fitted from the upper side And 51 '.

By this configuration, the clip electrod 40 'is individually connected to the fluorescent lamp 30' while supporting the conductors of the respective fluorescent lamps, and the connection terminal 44 'is also provided at each inverter output terminal electrode located on the rear surface of the cover bottom. It is fitted to the recess 52 'of the 51'.

Example 2

10 and 11 are diagrams illustrating a direct type backlight device and a power connection structure according to [Example 2] of the present invention.

In the power supply connection structure for the external electrode fluorescent lamp according to the [Example 2] of the present invention, as shown in Figs. 10 and 11a, the holder is bent upward by connecting a pair of frames 41 disposed inside and outside A part 42, a vertically bent downward portion at one side (inner) frame, the end portion is horizontally bent 44, a support 43 for vertically bent at the other (outer side) frame to position the fluorescent lamp, inverter It is composed of an inverter output terminal electrode 51 coupled to the contact portion can be contacted from above.

Here, the inverter output terminal electrode 51 is composed of a receptacle electrode and is coupled to the inverter 50 so that the concave portion 52 of the receptacle faces outward in the horizontal direction, and protrudes downward through the side bottom 20. The connecting terminal 44 whose end is horizontally refracted toward the inverter output terminal electrode 51 is fitted.

Example 3

12 and 13 are views illustrating a direct backlight device and a power connection structure according to [Example 3] of the present invention.

Power supply connection structure for an external electrode fluorescent lamp according to [Embodiment 3] of the present invention has a configuration similar to that of the power supply connection structure according to [Example 2] of FIGS. 10 and 11, as shown. 3, the full speed terminal is bent vertically downward in one side (inner) frame, the end is horizontally bent, and the hole 44a is formed at the end as shown in FIG.

In addition, a hole having the same shape is formed in the inverter output terminal electrode 51 coupled to the rear surface of the inverter 50 so that the connection terminal 44 and the inverter output terminal electrode 51 can be screwed through the holes. do.

Example 4

14 and 15 are diagrams illustrating a direct type backlight device and a power connection structure according to [Example 4] of the present invention.

The power connection structure for the external electrode fluorescent lamp according to the [Example 4] of the present invention, as shown in the drawing, is connected to a pair of frames 41 disposed inside and outside the holder portion 42 is bent upwards, one side Connection terminal 44 which is bent vertically downward in the (inner) frame and is further bent horizontally and vertically upward to form a 'c' shape, and a support part 43 which is bent vertically upward in the other (outer) frame to position the fluorescent lamp in position. ) Is composed of an inverter output terminal electrode 51 which is coupled to the inverter and can be contacted from above.

Referring to the drawings in detail, the connection terminal 44 of the [Fourth Embodiment] bent downward is a first connection portion 45 which is partially cut and bent horizontally, and extends downward and the first connection portion 46 The second connecting portion 46 is bent in parallel at predetermined intervals, and the third connecting portion 47 extending from the second connecting portion 46 to be bent upwards and its end is bent downward again, each connection portion Contact portions 45a, 46a, 47a for contacting the inverter output terminal electrode 51 are formed at 45, 46, 47.

In addition, the inverter output terminal electrode 51 has a double flat shape in which a square hole 53 is formed so that the third connection portion 47 can be inserted into and coupled to the center, and is attached to upper and lower sides of the inverter 50. It is.

The power supply connection structure having the structure as in the fourth embodiment can improve the contact between the connection terminal and the inverter output terminal electrode due to the elasticity of the contact portion and the metal plate formed at each connection portion of the connection terminal 44.

On the other hand, although the power supply connection structure for the external electrode fluorescent lamp was described in [Example 2] to [Example 4], the same applies to the internal electrode fluorescent lamp as in [Example 1]. That is, the power supply connection structure of the internal electrode fluorescent lamp is composed of the same connection terminal and the inverter output terminal electrode as the external electrode fluorescent lamp.

As the connection terminal is brought into contact with the inverter output terminal electrode by the same structure as in [Example 1] to [Example 4], the fluorescent lamp fitted to the holder of the clip electric rod requires a separate lead wire for power connection. Without being able to be directly connected to the inverter located on the bottom cover cover, it is not required to connect the lead wire even during the manufacturing process of the backlight.

As described above, the power connection structure of the direct type backlight device according to the present invention is directly contacted to the inverter output terminal electrode by the connection terminal of the clip-electrode projecting downward vertically, the back of the electrode of the fluorescent lamp and the cover bottom A separate lead wire is not required to electrically connect the inverter located at. In addition, it is possible to prevent malfunction of the backlight device due to damage that may occur due to the flow of the lead wire.

Claims (9)

In the power connection structure for electrically connecting the fluorescent lamp and the inverter in the direct backlight device, A clip electric rod having a connection terminal bent downward in an inverter direction installed under the cover bottom to fix and support the fluorescent lamp and to be electrically connected thereto; and An inverter output terminal electrode coupled to the inverter and connected to a connection terminal of the clip electric rod; Consist of, The connection terminal and the inverter output terminal electrode is in contact with the power supply structure of the direct type backlight device, characterized in that the fluorescent lamp is directly connected to the inverter without the need for a lead wire. 2. The power supply structure of claim 1, wherein the clip electrorod comprises a connection terminal for applying power to a plurality of external electrode fluorescent lamps in common and an inverter output terminal electrode corresponding thereto. 2. The power supply structure of claim 1, wherein the clip electrification rod comprises a connection terminal for individually applying power to a plurality of internal electrode fluorescent lamps, and an inverter output terminal electrode corresponding thereto. . The protective tube of claim 3, wherein the inner electrode fluorescent lamp has a cylindrical shape in which one side is coupled with a glass tube and the other side is fitted with a lead wire of the inner electrode, and a protective tube made of a buffer material for protecting the glass tube is fitted and coupled to both sides. And a conductor welded to the lead wire to the tube so as to prevent the glass tube from being damaged by the conductor and the clip electr rod. The method according to claim 4, wherein the protective tube wraps the lead wires of the glass tube and the inner electrode with different diameters, respectively, and the outside is formed in two stages so that the fluorescent lamp assembled in the backlight does not flow in the axial direction. A power connection structure of a direct type backlight device, characterized in that the glass tube and the sealing portion of the inner electrode protrusion are prevented from being damaged by an external force applied to the lead wire when the clip electric rod is coupled. The connecting terminal of the clip electric rod according to any one of claims 1 to 5, wherein the connecting terminal of the clip electric rod is vertically bent downward, and the inverter output terminal electrode is composed of a receptacle having a recessed portion formed upward. Is vertically elastically coupled to and connected to the receptacle of the inverter output terminal electrode. The terminal of any one of claims 1 to 5, wherein the connection terminal of the clip electric rod is bent vertically downward, the end is horizontally bent, and the inverter output terminal electrode is composed of a receptacle having a recessed portion formed on the side thereof. And a connecting terminal of the clip electric rod is horizontally elastically coupled to the receptacle of the inverter output terminal electrode and connected to the power supply structure of the direct type backlight device. The terminal of any one of claims 1 to 5, wherein the connection terminal of the clip electric rod is vertically bent downwardly and ends are horizontally bent, and holes are formed at the ends of the inverter output terminal electrodes. And a hole formed therein, wherein the connecting terminal of the clip electric rod and the inverter output terminal electrode are fastened and connected by a screw bolt through the holes. The connection terminal of the clip electrified rod, which is vertically bent downward, has a first connection part which is partially cut and bent horizontally, and extends downward and is connected to the first connection part. And a second connection portion bent in parallel at a predetermined interval, and a third connection portion extending from the second connection portion and bent upward, and the end portion is bent downward again, and each contact portion has a contact for contact with the inverter output terminal electrode. The inverter output terminal electrode is formed of a double plate type having a hole formed in the center so that the third connection portion can be inserted and connected. And the clip direct rod connection terminal and the inverter output terminal electrode are connected by clip fastening.

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