KR100754778B1 - Lamp assembly and liquid crystal display device using the same - Google Patents

Abstract

A lamp socket, a lamp assembly using the same, and a liquid crystal display using the same are disclosed. When replacing a lamp tube by assembling a lead wire made of nickel in a lamp socket gripped by elasticity, the lamp tube can be replaced by a simple operation of simply removing the lamp tube from the lamp socket.

Lamp tube, nickel lead wire, liquid crystal display

Description

Lamp assembly and liquid crystal display using the same {LAMP ASSEMBLY AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME}

1 is a partial cross-sectional view showing an example of a conventional lamp.

2 is a partial cross-sectional view showing another example of a conventional lamp.

3 is a cross-sectional view of a lamp applied to a lamp socket according to an embodiment of the present invention.

4 is an exploded perspective view of a lamp socket according to an embodiment of the present invention.

5 is a partially exploded perspective view showing the lamp socket and the lamp assembled according to an embodiment of the present invention.

6 is another embodiment of FIG. 5.

7 is a conceptual diagram of a lamp assembly according to an embodiment of the present invention.

8 is an exploded perspective view of a liquid crystal display according to an exemplary embodiment of the present invention.

The present invention relates to a lamp socket, a lamp assembly using the same, and a liquid crystal display device using the same. Particularly, a lamp socket for supplying power to an electrode located inside the lamp tube and a member for supplying power to the lead wire are separately manufactured, The present invention relates to a lamp socket, a lamp assembly using the same, and a liquid crystal display using the same.

In general, a liquid crystal display device (LCD) may be defined as a device that displays an image by precisely controlling a liquid crystal. In order to display a high quality image through the liquid crystal display device defined above, a liquid crystal manufacturing technique, a technique for controlling the liquid crystal, an optical technique for supplying light having uniform luminance to the liquid crystal, and the like are required.

Among these, the optical technology includes a light source technology for generating light and a technology for uniforming the luminance distribution of the light generated from the light source, which are necessary for performing high quality display.

In particular, a light source manufactured by a light source technology for generating light used in a liquid crystal display device must have all of white light characteristics, low heat generation characteristics, long lifetime characteristics, and easy manufacturing characteristics.

As a light source having most of these characteristics, a "cold cathode ray tube lamp" may be mentioned. The conventional cold cathode ray tube type lamp 10 includes, for example, a lamp tube 2, a lamp wire 4, and a lamp holder 6, as shown in FIG. 1 or 2.

The conventional lamp tube 2 is again composed of a tube body 2a, a fluorescent material 2b, a discharge gas 2c and an electrode 2d as shown in FIG.

More specifically, the tube body 2a is made of a tube shape in which light is transmitted and both ends thereof are sealed. A fluorescent material is coated on the inner wall of the tube body 2b to form a fluorescent material layer 2b, and a discharge gas 2c is injected into the fluorescent material layer 2b. A pair of electrodes (2d, the other one not shown) is located at both ends of the inner tube body (2b) having such a configuration, a portion of each of the electrodes (2d) facing each other outside the tube body (2a) The lead wire 2e is formed to be drawn out to receive external power. This lead wire 2e is made of copper material with excellent current characteristics.

The lamp wire 2 which has such a structure is connected to the lamp wire 4 which applies discharge power to the electrode 2d via the lead wire 2e by the soldering method.

In this case, the lamp wire 4 and the lead wire 2e may be connected in a direction perpendicular to each other as shown in FIG. 1, or may be connected in a direction parallel to each other as shown in FIG. 2.

At this time, the lamp holder shown by 6 serves to wrap the lamp wire 4 and the lead wire (2e).

The lamp wires 4 respectively connected to the pair of electrodes 2d are again connected to the connector, and the connector is connected to the inverter.

While the conventional lamp 10 has various advantages, it also has various problems.

The first problem is a problem in which poor soldering occurs frequently during the soldering of the lamp wire 6 and the lead wire 2e of the lamp 10. The second problem is that the lamp 10 has reached the end of its life. When replacing 10), there is a problem in that not only the lamp tube 2 but also the lamp wire 4 connected to the lamp tube 2 must be replaced.

Accordingly, the present invention has been made in view of such a conventional problem, and a first object of the present invention is to provide a lamp socket capable of replacing only a lamp tube by electrically connecting a lamp wire and a lead wire without a soldering process.

A second object of the present invention is to provide a lamp assembly that can replace only the lamp when the lamp lighting failure occurs by connecting the lamp and the part for supplying power to the lamp in a clamping manner.

It is a third object of the present invention to provide a liquid crystal display device including a lamp assembly to replace only a lamp when a lamp lighting failure of a lamp as a consumable occurs.

The lamp socket for realizing the first object of the present invention includes a base clamp to which a conductive clamp and a conductive clamp to which the lead wire is fitted are fixed to grip the lead wire connected to the electrode formed on the lamp by elasticity.

In addition, the lamp assembly for implementing the second object of the present invention is connected to the first and second electrodes and the first and second electrodes formed to be spaced apart from each other in the lamp tube and the lamp tube protrudes out of the lamp tube. And a lamp including first and second leads having a first hardness and at least one of which is arranged in a parallel manner, the first and second leads to elastically grip the first and second leads formed on the lamp. And a lamp socket including a conductive clamp disposed at a position coupled thereto and a base body fixing the conductive clamp to which the first and second lead wires are inserted.

In addition, the liquid crystal display device for implementing the third object of the present invention is connected to the first and second electrodes and the first and second electrodes formed to be spaced apart from each other in the lamp tube and the lamp tube to protrude out of the lamp tube. A first and second leads including first and second leads having a first hardness and at least one of the first and second leads formed in the lamp and the first and second leads formed in the lamp by elasticity. A lamp assembly comprising a lamp socket comprising a conductive clamp disposed at a position coupled with the lead wire and a base body for fixing the conductive clamp fitted with the first and second lead wires, and an optical distribution for changing a luminance distribution of light generated from a lamp of the lamp assembly. And a liquid crystal display panel assembly for converting light passing through the change plate and the optical distribution change plate into image light including information.

Hereinafter, with reference to the accompanying drawings, a unique operation and effects of a lamp socket, a lamp assembly using the same and a liquid crystal display using the same will be described with reference to the accompanying drawings.

3 is a view illustrating a lamp 100 applied to a lamp socket according to an embodiment of the present invention. Lamp 100 applied to the present invention is composed of a lamp tube 110, a pair of first electrode portion 120 and the second electrode portion 130 as shown in FIG.

More specifically, the lamp tube 110 is composed of the tube body 112, the fluorescent material layer 114 and the discharge gas 116 again.                     

The tube body 112 has a tube shape having both ends open, and a fluorescent material is applied to a thin thickness on the inner surface of the tube body 112 to form a fluorescent material layer 114. In addition, the discharge gas 116 is injected into the tube body 112 at a predetermined pressure.

In order for the invisible light generated by the discharge gas 116 to be plasma-formed in the lamp tube 110 having such a configuration to stimulate the fluorescent material layer 114 to generate visible light outside the lamp tube 110, the tube body ( 112) An internal discharge must occur.

To this end, as shown in FIG. 3, a pair of first electrode portions 120 and a second electrode portion 130 are required.

In this case, the first electrode part 120 is composed of the first electrode 122, the bead glass 124, and the first lead wire 125 again. More specifically, the first lead wire 125 has a rod shape made of nickel or a nickel alloy, and the bead glass 124 having through holes is fitted into the first lead wire 125. The bead glass 124 is fitted to the lamp tube 110 and then fused to the lamp tube 110 by heat. The first electrode 122 has a cup shape to maximize the electrode area and is coupled to an end of the first lead wire 125.

On the other hand, the second electrode unit 130 is composed of the second electrode 132, the bead glass 132, the second lead wire 135 again. More specifically, the second lead wire 135 has a rod shape made of nickel or a nickel alloy, and the bead glass 134 having through holes is inserted into the second lead wire 135. The bead glass 134 is fitted to the lamp tube 110 and then fused to the lamp tube 110 by heat. The second electrode 132 has a cup shape to maximize the electrode area and is coupled to an end of the second lead wire 135.

The first and second lead wires 125 and 135 are parts to which power is applied from the outside and have excellent electrical characteristics. In particular, in recent years, as the length of light generation from the lamp 100 becomes longer, there is a need for first and second lead wires 125 and 135 having better electrical characteristics. For this reason, a method of manufacturing the first and second lead wires 125 and 135 with nickel or a nickel alloy has been proposed. The first and second lead wires 125 and 135 shown in FIG. 3 of the present invention are made of nickel in a preferred embodiment.

As such, when the first and second lead wires 125 and 135 are used as nickel or nickel alloys, they are more stable than air or moisture than iron or copper, and oxidation does not occur, and they do not corrode well even in alkali and have higher hardness than copper. It has various characteristics such as deformation does not easily occur.

Since the first and second lead wires 125 and 135 having such excellent characteristics have excellent hardness, the first or second lead wires 125 and 135 may not bend or otherwise deform in the process of being coupled to the lamp socket 200 to be described later. Does not occur. In addition, after the first and second lead wires 125 and 135 made of nickel are inserted into the lamp socket 200 because they are not oxidized because they are resistant to external environment, for example, air and humidity, they may not be oxidized for a long time. Since the surface oxidation does not occur by air or moisture even after passing through, the electrical characteristics of the lamp socket 200 and the first and second lead wires 125 and 135 are not deteriorated.

4 is a lamp socket 200 according to an embodiment of the present invention described above is shown.

The lamp socket 200 is applied to the lamp 100 having the first and second leads 125 and 135 made of nickel as described above, thereby minimizing the replacement of the lamp 100 and the number of parts forming the lamp 100. can do.

Lamp socket 200 for implementing this is composed of a conductive clamp 250 and the base body 270 again. More specifically, the conductive clamp 250 serves to grip the first and second lead wires 125 and 135 connected to the first and second electrodes 122 and 132 formed on the lamp 100 by elasticity. do.

At this time, in order to grip the first and second lead wires 125 and 135 by the conductive clamp 250, the conductive clamp 250 is again connected to the first fixing part 251 and the second fixing part 255. And a first grip part 252, a second grip part 254, and a connection part 253.

The first fixing part 251 is composed of a first end portion 251a and a second end portion 251b in the shape of a rectangular parallelepiped plate. The second fixing part 255 is composed of a first end portion indicated by reference numeral 255a and a second end portion indicated by reference numeral 255b in a rectangular parallelepiped shape.

A first grip part 252 is formed on the first fixing part 251, and a second grip part 254 is formed on the second fixing part 255.

More specifically, the first grip part 252 extends in a direction perpendicular to the second end portion 251 b of the first fixing part 251 and is processed into a convex curved shape. The second grip portion 254 extends in a direction perpendicular to the second end portion 255b of the second fixing portion 255 and is processed into a convex curved surface facing the first grip portion 254.

The remaining ends of the first grip part 252 and the second grip part 254 are connected by the connection part 253.

As a result, the first clamp 251, the first grip 252, the connector 253, the second grip 254, and the second clamp 255 are integrally connected to the conductive clamp 250. Such a conductive clamp 250 can be produced by bending a long rectangular parallelepiped plate.

The distance G between the first grip part 252 and the second grip part 254 of the conductive clamp 250 having the above configuration is the first and second lead wires 125 and 135 of the lamp 100 described above in detail. It is smaller than the thickness (W) of.

Meanwhile, as illustrated in FIG. 4, power supply units 251c and 255c are electrically connected to the power line 260 to which external power is applied to the first fixing part 251 and the second fixing part 255. Is installed more.

Only the conductive clamp 250 having such a configuration may be connected to the first and second lead wires 125 and 125 of the lamp 100 described above. However, in the present invention, the base body 270 shown in FIG. 4 is used to prevent the conductive clamp 250 from shorting with other conductive parts. The base body 270 serves to fix the conductive clamp 250.

In order to accomplish this, the base body 270 is composed of a bottom plate 272 and support walls 274 and 276.                     

More specifically, the support walls 274 and 276 are installed to face each other at the surface of the bottom plate 272. At this time, the support wall 274 and the support wall 276 are spaced apart enough to allow the connection portion 253 of the conductive clamp 250 described above to be inserted. The first grip part 252 and the second grip part 254 of the conductive clamp 250 are mounted on the support wall 274 and the support wall 276.

Lamp lamp 200 having such a configuration is a plurality of lamps by soldering the power supply unit 252c formed in each lamp socket 200 in a state where a plurality is arranged in series as shown in the embodiment of FIG. Power can be supplied to 100.

Alternatively, as shown in the embodiment of FIG. 6, the support walls 274 and 276 are formed in series on the surface of the support plate 272 of the base body 270, and the conductive clamps 250 are provided for each support wall 274 and 276. ), It is also possible to connect both the power supply unit (251c, 255c) formed in the conductive clamp (250).

The lamp socket 200 having such a configuration is combined with the lamp 100 described above to configure the lamp assembly 300 as shown in FIG. 7.

The lamps 100 constituting the lamp assembly 300 are arranged in parallel in parallel with each other. In the present invention, nine lamps 100 are used in one embodiment.

The first and second lead wires 125 and 135 of the lamps 100 are coupled to the conductive clamp 250 of the lamp socket 200 described above, respectively. To this end, the lamp sockets 200 are arranged in a parallel manner in parallel with positions to be fitted to the first and second lead wires 125 and 135, as shown in FIG. 7.                     

The lamp sockets 200 arranged as described above are grouped into three units, and each group is electrically connected to the first inverter 410, the second inverter 420, and the third inverter 430 illustrated in FIG. 7. . In the present invention, in one preferred embodiment, three lamps are powered from one inverter, but it is also possible to allow a plurality of lamps to be powered from one inverter.

As shown in FIG. 8, the lamp assembly 300 having such a configuration is combined with the liquid crystal display panel assembly 570 and the optical distribution changing plate 530 to manufacture the liquid crystal display device 600.

The optical distribution change plate 530 serves to make the luminance distribution of the light generated by the lamp 100 of the lamp assembly 300 more uniform.

To this end, a diffusion plate 520 is disposed above the lamp assembly 300 to diffuse light generated from the lamp 100, and a prism that improves the straightness of the light diffused from the diffusion plate 520 is disposed on an upper surface of the diffusion plate 520. The seat 510 is located.

Meanwhile, light passing through the optical distribution changing plate 530 is incident to the liquid crystal display panel assembly 570, and the liquid crystal display panel assembly 570 includes light including information passing through the optical distribution changing plate 530. Change it to exit.

The liquid crystal display panel assembly 570 for realizing the liquid crystal panel is a liquid crystal display panel 562 composed of a TFT substrate 560, a liquid crystal (not shown), and a color filter substrate 550 so as to precisely control the liquid crystal to display an image. A driving module 565 for driving the liquid crystal display panel 562 is included.                     

In this case, reference numeral 590 denotes a storage container for accommodating the lamp assembly 300 and the optical distribution changing plate 530, and reference numeral 540 denotes a middle chassis to which the liquid crystal display panel assembly 570 is fixed. Reference numeral 580 denotes a top chassis that is coupled to the storage container 590.

As described in detail above, when the lamp is broken by replacing the lead wire of the lamp with the lamp socket without direct soldering or the like by external soldering, or when the lamp is replaced at the end of its service life, only the lamp tube is removed from the lamp socket. Assembling a new lamp not only shortens the lamp replacement time, but also minimizes the number of components required to generate light from the lamp.

In the detailed description of the present invention described above with reference to a preferred embodiment of the present invention, those skilled in the art or those skilled in the art having ordinary knowledge in the scope of the invention described in the claims to be described later It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

Claims (10)

delete delete delete delete delete delete First and second electrodes formed to be spaced apart from each other inside the lamp tube and the lamp tube, and connected to the first and second electrodes to protrude out of the lamp tube, and have first and second leads having a first hardness. Lamps comprising at least one lamp arranged in a parallel manner; Fixing the conductive clamp disposed in the position where the first and second lead wires are coupled to the first and second lead wires and the conductive clamp to which the first and second lead wires are inserted to grip the first and second lead wires formed in the lamp by elasticity. And a lamp socket comprising a base body. 8. The lamp assembly of claim 7, wherein said first hardness is at least greater than the hardness of copper (Cu). The lamp assembly of claim 8, wherein the first and second lead wires are made of nickel or nickel alloy. First and second electrodes formed to be spaced apart from each other inside the lamp tube and the lamp tube, and connected to the first and second electrodes to protrude out of the lamp tube, and have first and second leads having a first hardness. A conductive clamp disposed at a position coupled with the first and second leads to elastically grip the lamp arranged in a parallel manner and at least one of the lamps and the first and second leads formed on the lamp. A lamp assembly including a lamp socket including a base body to fix the conductive clamp to which the first and second leads are inserted; An optical distribution changing plate for changing a luminance distribution of light generated in the lamp of the lamp assembly; And And a liquid crystal display panel assembly for converting light passing through the optical distribution changing plate into image light including information.

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