KR20030042189A - Lamp and lamp assembly and liquid crystal display device using the same and method for assembling thereof - Google Patents

Abstract

PURPOSE: A lamp, a lamp assembly, a liquid crystal display device using the same and a method for fabricating the same are provided to increase the efficiency in the use of light with reduced low power consumption. If a plurality of lamps are used for the display of an LCD panel assembly, the luminance deviation among the lamps is reduced. CONSTITUTION: A lamp includes conductive sockets(320) for receiving both ends of the lamp. The tubular lamp is doped with a fluorescent substance on an inner wall for generating light by power supply from the outside and injected with charge gas. The tubular lamp is capped with electrodes(315) at both sides on an outer surface for supplying the external power supply. Each of the conductive socket is formed cylindrically with an opening(322a,324a) for maximizing valid luminescent areas for emitting light.

Description

LAMP AND LAMP ASSEMBLY AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME AND METHOD FOR ASSEMBLING THEREOF}

The present invention relates to a lamp, a lamp assembly, a liquid crystal display using the same, and a method for assembling the same, and more particularly, to generate display light with very low power consumption, to maximize the effective light emitting area of the generated display light, as well as processability and mass production. The present invention relates to a lamp, a lamp assembly, a liquid crystal display using the same, and an assembly method thereof.

In general, a liquid crystal display device (LCD) may be defined as one of flat panel displays that display data processed by an information processing device by text, video, video, etc. by precisely controlling liquid crystal.

In order to perform a display from a liquid crystal display device having such a role, a liquid crystal, an electric field forming device, and a light supply device are required.

At this time, the liquid crystal reacts sensitively to the intensity of the electric field, the field forming apparatus has a configuration suitable for precisely controlling the liquid crystal, and the light supply device provides light passing through the controlled liquid crystal.

These liquid crystals, electric field forming devices, and light supply devices are all important. This means that the information display itself is not possible if either of these is not working normally.

Of these, the light supply device is particularly important. This means that no matter how precisely the liquid crystal and the field forming apparatus operate, if the light supply apparatus is abnormally operated, normal display is impossible.

The light supply device which plays such an important role is composed of a lamp for generating light again and an optical sheet group for uniforming the brightness of light generated from the lamp. Alternatively the light supply is also called a lamp assembly.

Among them, a lamp that generates light is ideally a lamp that generates white light such as sunlight and has a surface light source optical distribution. However, since it is very difficult to manufacture a lamp that satisfies such a condition, a lamp having a line light source optical distribution is mainly used.

1 shows an example of a conventional lamp having a line light source optical distribution. The lamp 10 shown in FIG. 1 includes a transparent lamp tube 1, a fluorescent material (not shown) applied inside the lamp tube 1, a discharge gas 2 injected into the lamp tube 1, It consists of a pair of internal electrodes 3, 4 located at both ends of the lamp tube 1.

The discharge voltage is applied from the outside to the two internal electrodes 3 and 4 of the lamp 10 having such a configuration. Thereby, for example, the movement of the electrons 5 is generated from one of the electrodes 4 to the remaining electrodes 3 due to the potential difference. In this way, the electrons 5 moving from one electrode 4 to the other electrode 3 collide with the discharge gas 2. As a result, the discharge gas 2 dissociates into a discharge gas atom, another electron, and a neutron, and becomes a plasma state. The light 6 of a predetermined wavelength generated in this process stimulates the fluorescent material. In this process, visible light 6 is generated outside the lamp tube 1.

Of course, the discharge voltage across the lamp 10 which is constructed and operated in this manner is performed by an inverter (not shown) and a transformer.

Recently, technology development of a display device having a display area larger than the display area that one lamp 10 having such a configuration can afford is rapidly progressing. As such, when the display area becomes larger than the display area that one lamp 10 can afford, the length of the lamp 10 may also increase.

However, when the length of the lamp 10 is increased in this way, as the distance between the electrodes 3 and 4 is increased, the required discharge voltage rises together. At this time, the increase in the discharge voltage means that a larger boost in the transformer must be made. As a result, this causes a variety of problems, such as a significant increase in power consumption.

To solve this problem, as shown in FIG. 2, a "multi lamp" method of connecting two or more lamps 20, 30, and 40 to one inverter 50 has been devised.

Since the multi-ramp method can solve the pressure problem described above, the problem of increasing power consumption is naturally solved. On the other hand, the multi-lamp system generates a problem of "luminance unevenness" in the "effective display area 70" defined as the area where the actual screen is displayed as shown in FIG.

At this time, luminance unevenness in the effective display area 70 occurs for two reasons.

At this time, the first cause is caused by using the line light source lamps (20, 30, 40). The luminance unevenness caused by this first cause is overcome by a luminance compensation device called "light guide plate".

On the other hand, the second cause is due to the current characteristic deviation present in the plurality of line light source lamps 20, 30, 40 and the irrationality of the power supply system from the inverter 50.

This will be described in more detail as follows. As shown in FIG. 2, the lamps 20, 30, and 40 in which the light is generated while the plasma is formed therein have a characteristic that the plasma density increases as the current is applied.

As the plasma density increases, more current flows. That is, such lamps 20, 30, and 40 have electrical characteristics similar to that of the variable resistor, for example, the resistance decreases as the intensity of the current increases.

Lamps 20, 30, and 40 having such electrical characteristics are supplied with power of the same size to each lamp 20, 30, and 40 in a state in which one inverter 50 is connected in parallel. In this case, if the electrical characteristics of the plurality of lamps 20, 30, and 40 are all the same, they will all be lit with the same brightness.

However, it is almost impossible to make the current characteristics of the plurality of lamps 20, 30 and 40 all the same. For this reason, lamps that have relatively good current characteristics at the time of manufacture gradually become brighter with increasing current supply, and lamps with relatively poor current characteristics at the time of manufacture gradually decrease in current supply.

As a result, when power is supplied after connecting a plurality of lamps to one inverter, the luminance deviation between the lamps is gradually increased.

This problem is overcome by connecting the inverter to a plurality of lamps one-to-one. However, when the inverter is connected to the plurality of lamps in a one-to-one manner, there is another problem that the installation area and installation cost are greatly increased.

Accordingly, the present invention has been made in view of such a conventional problem, and the first object of the present invention is to minimize the luminance deviation when the lamp is turned on when at least one lamp is connected in a parallel manner to one inverter, and the minimum consumption is minimized. It is to provide a lamp having the maximum light utilization efficiency and excellent mass production with power.

A second object of the present invention is to provide a lamp assembly having a maximum light utilization efficiency with a minimum power consumption by combining a plurality of lamps having an extra-electrode electrode formed on the outside of the lamp tube to a separate lamp socket.

A third object of the present invention is to enable a high quality display having maximum light utilization efficiency with minimum power consumption while minimizing luminance deviation when at least one lamp is turned on in a parallel manner connected to one inverter. It is to provide a liquid crystal display device.

A fourth object of the present invention is to provide a method of assembling a liquid crystal display device capable of high-quality display with minimum luminance deviation and maximum light utilization efficiency with minimum power consumption.

1 is a conceptual diagram for explaining the configuration and operation method of a conventional lamp.

FIG. 2 is a conceptual view illustrating a state in which the lamp of FIG. 1 is connected to one inverter in a parallel manner.

FIG. 3 is a conceptual diagram illustrating a luminance defect occurring when the display is performed by the method of FIG. 2.

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

4B is a cross-sectional view of the lamp tube and the electrode of FIG. 4A coupled to each other.

4C is an enlarged view of a portion B of FIG. 4B.

5A is a perspective view illustrating a lamp according to another embodiment of the present invention.

FIG. 5B is a cross-sectional view of the lamp tube and the electrode of FIG. 5A coupled; FIG.

5C is an enlarged view of portion D of FIG. 5B.

Figure 6a is a perspective view of a lamp according to another embodiment of the present invention.

FIG. 6B is a cross-sectional view of the lamp tube and the electrode of FIG. 6A coupled;

6C is an enlarged view of a portion E of FIG. 6B.

7 is a conceptual diagram of a liquid crystal display including a lamp 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.

9A is an exploded perspective view of a TFT substrate of a liquid crystal display panel assembly according to an embodiment of the present invention.

9B is a cross-sectional view of a color filter substrate according to an embodiment of the present invention.

10 is a conceptual diagram illustrating a relationship between a plurality of lamps and an inverter according to an embodiment of the present invention.

The lamp for implementing the first object of the present invention is a fluorescent material is applied to the inner wall so as to generate light by receiving an external power source, and receives a lamp tube, a lamp tube injected with a discharge gas, the outer surface of the lamp tube It includes an electrode for supplying external power to.

In addition, the lamp assembly and lamp for implementing the second object of the present invention includes an electrode disposed on the outer wall of the lamp tube in which the discharge gas is injected and the fluorescent material is applied to the inner wall so that light is generated by receiving an external power source The electrode is accommodated, and includes a conductive socket to which external power is supplied.

Liquid crystal display device for implementing the third object of the present invention is installed on the inner base surface of the storage container, the storage container, the fluorescent material is applied to the inner wall to generate light by receiving external power, at least one discharge gas is injected Lamps comprising at least one lamp tube, a pair of electrodes surrounding the lamp tube and to supply the external power to the outer surface of the lamp tube, diffused through the storage container installed on the path through which the light generated from the lamp is supplied And a liquid crystal panel which modulates light passing through the plate and the diffusion plate into image light including information.

A method of assembling a liquid crystal display device for implementing the fourth object of the present invention includes (i) providing a pair of first conductive members for electrodes spaced apart from each other in a storage container, and (ii) a fluorescent material on the first conductive member. Coupling a part of the lamp tube applied to the inner wall and injected with the discharge gas; and (i) coupling the liquid crystal panel to receive the light from the lamp tube and display the image in the receiving container.

According to the present invention, when one lamp is used to generate light required to perform a display from a liquid crystal display, low power consumption and light utilization efficiency can be doubled. When a plurality of lamps are used to generate light required to perform a display from the liquid crystal display panel assembly, it is possible to minimize the luminance difference between the lamps as well as the low power consumption and the light utilization efficiency.

Hereinafter, a unique operation and effects of a lamp according to an embodiment of the present invention, a manufacturing method thereof, a lamp assembly, and a liquid crystal display using the same will be described with reference to the accompanying drawings.

First, the lamp 100 according to an embodiment of the present invention is shown in FIG. The lamp 100 includes a lamp tube 110 and electrodes 122, 124 and 120 for supplying power to both sides of the lamp tube 110 to generate light.

At this time, the lamp tube 110 has a tube shape with both ends sealed. The lamp tube 110 is made of a glass material in one embodiment. Meanwhile, as illustrated in FIG. 4B, the fluorescent material 112 is coated and discharge gas 114 is injected into the inner wall of the lamp tube 110 in one embodiment.

On the other hand, the electrode 120 for lighting the lamp tube 110 is separately manufactured to be separated from the lamp tube 110 in one embodiment. At this time, the shape of the electrode 120 is inserted into the lamp tube 110 has a structure suitable for accommodating the lamp tube 110.

As such, the electrode 120 only needs to have a structure suitable for contacting and receiving the lamp tube 110, thereby having a wide variety of embodiments.

In the present invention, two preferred embodiments of these embodiments will be described. Specifically, as shown in FIGS. 4A to 4C, the electrode 120 has a conductive cylindrical shape in which both ends thereof are opened or only one side thereof is blocked so that both ends of the lamp tube 110 may be accommodated most simply.

The inner diameter of the electrode 120 manufactured in such a shape is manufactured to fit snugly without being spaced apart from the surface of the lamp tube 110.

Another embodiment is shown in the accompanying Figure 4b or 4c. Referring to the accompanying drawings, a dielectric layer 130 is further formed between the inner surface of the electrode 120 and the surface of the lamp tube 110. In this case, the dielectric layer 130 may include an adhesive component to serve to fix the electrode 120 and the lamp tube 110 to each other.

In this state, when an AC discharge power sufficient to cause a discharge to the electrode 120 is applied from, for example, an inverter and a transformer, the inside of the lamp tube 110 is caused by an electric field difference between the electrodes 120. Discharge phenomenon occurs.

At this time, the electrons generated by the discharge start to move across the lamp tube 110 at high speed. As a result, the discharge gas 114 injected into the lamp tube 110 collides with the electrons. As a result, the discharge gas 114 is dissociated into discharge gas ions, electrons and neutrons. As a result, a conductive plasma environment is created inside the lamp tube 110. The plasma discharged gas is attracted toward the electrode 122 having the positive polarity, for example, and the electrons are, for example, the electrode 124 having the positive polarity. Will be dragged towards

On the other hand, light having a predetermined wavelength generated in the process of creating a plasma environment inside the lamp tube 110 stimulates the fluorescent material 112 as shown in FIG. 4C to generate visible light to be used in the display.

Meanwhile, referring to FIG. 4B, when the length of the total effective light emitting area of the lamp tube 110 is L, the actual effective light emitting area in which the light to be used for the actual display in the lamp tube 110 may occur is the total effective light emitting area. It is only the length L of the area minus the lengths E1 and E3 of the two electrodes. The actual effective light emitting area in FIG. 4B is indicated by L1.

As described above, as the length L1 of the actual effective light emitting area of the lamp tube 110 becomes shorter than the length L of the entire effective light emitting area, light generated by consuming electric energy is gradually reduced. As a result, the utilization efficiency of light generated by consuming electrical energy is inevitably lowered.

5A to 5C illustrate lamps 200 that further improve light utilization efficiency compared to the embodiments of FIGS. 4A to 4C.

Referring to FIG. 5A, a portion of the circumferential surface of the electrodes 222, 224 and 220 accommodating the lamp tube 210 sealed with the fluorescent material and the discharge gas are formed to form the openings 222b and 224b. In this case, the openings 222b and 224b may be formed particularly in the direction in which the light is to be supplied to maximize the effective display area.

Meanwhile, when a portion of the electrode 220 is cut out as shown in FIG. 5B to form openings 222b and 224b to maximize the use efficiency of light, the use efficiency of light is improved but the electrode area is reduced to have the shape of FIG. 4A. It is disadvantageous in terms of power consumption compared to the electrode 120.

The problem is that a part of the electrode 220 corresponding to the direction in which light does not need to be supplied in the electrode 220 as shown in FIG. 5A while a part of the electrode 220 is opened in order to maximize light utilization efficiency. It can be solved simply by forming the extensions 222a, 224a in the.

Of course, at this time, the extension parts 222a and 224a provided to prevent the increase in power consumption should not interfere with the path of the light to be displayed.

Hereinafter, a method of manufacturing a lamp according to an embodiment of the present invention will be described with reference to the accompanying drawings.

First, referring to FIGS. 5A to 5C, a fluorescent lamp 212 is coated on the inner wall with a uniform thickness through a first manufacturing process, and a lamp tube sealed with a discharge gas 214 injected at a predetermined pressure. 210).

Meanwhile, an electrode 220 coupled to the lamp tube 210 manufactured in the first manufacturing process is formed through the second manufacturing process. In this case, the electrode 220 manufactured through the second manufacturing process has a cap shape in which one end thereof is blocked. Alternatively, the electrode 220 may have a cylindrical shape having openings 224a and 224b in which a portion of the circumferential surface is cut.

As such, the lamp tube 210 and the electrode 220 separately manufactured through the first manufacturing process and the second manufacturing process are assembled with each other.

More specifically, the outer circumferential surface of the lamp tube 210 is inserted through the inner surface of the electrode 220 so that the electrode 220 and the lamp tube 210 are coupled to each other.

On the other hand, Figure 6a or 6b shows a lamp assembly according to an embodiment of the present invention.

On the other hand, the lamp assembly 300 according to another embodiment of the present invention is shown in Figure 6a to 6c attached.

Referring to FIG. 6A, the lamp assembly 300 includes a lamp 310 and a conductive socket 320.

At this time, the lamp 310 also has a tube shape in which both ends are blocked, and a pair of electrodes 315 are capped on both sides of the outer circumferential surface thereof. In this case, the electrode 315 may be implemented by various methods such as a plating method and a coating method.

The fluorescent material 312 is applied to the inner side surface of the lamp 310 as shown in FIG. 6C, and the discharge gas 314 is injected into the inner space of the lamp 310.

The lamp 310 sealed with the fluorescent material 312 and the discharge gas 314 formed therein is accommodated at both ends of the lamp 310 by a conductive socket 320 manufactured separately from the lamp 310.

In this case, the conductive socket 320 in which the lamp 310 is accommodated has a cylindrical shape in a preferred embodiment, and a portion of the circumferential surface is cut to form openings 322a and 324a. In this case, an opening is formed in a part of the conductive socket 320. As described above, a part of the conductive socket 320 is opened to maximize the effective light emitting area where the actual light is emitted.

In this case, as illustrated in FIG. 6B or 6C, the electrode 315 and the conductive socket 320 formed on the outer surface of the lamp 310 are directly contacted and electrically connected to each other.

Meanwhile, a plurality of lamps 200 assembled through the process of FIGS. 5A to 5C are applied to the liquid crystal display device as shown in FIG. 7 or less as one set, thereby performing a more improved function.

Hereinafter, a liquid crystal display including the lamp described above will be described with reference to FIG. 7. In the present invention, a liquid crystal display device equipped with a lamp illustrated in FIGS. 5A to 5C will be described.

Referring to FIG. 7, the liquid crystal display 900 generally includes at least one lamp 200, a power supply 270, a diffusion plate 280, a lamp assembly 290, a storage container 400, A liquid crystal display panel assembly 500, a middle chassis (not shown), and a case 600 which allow the liquid crystal display panel assembly 500 and the storage container 400 to be coupled to each other.

8, 9A, or 9B, the liquid crystal display panel assembly 500 is composed of a color filter substrate 510, a liquid crystal 520, a TFT substrate 530, and a driving module 540.

Among them, the color filter substrate 510 includes a transparent substrate 511, an RGB color pixel 513, and a common electrode 515 as shown in FIG. 9B.

In this case, the RGB color pixel 513 is formed on one side of the transparent substrate 511. This RGB color pixel 513 is formed in a matrix form on the transparent substrate 511 by a thin film formation technique. The RGB color pixels 513 arranged in the matrix form as described above allow white light to be filtered by any one of light having a red wavelength, light having a green wavelength, and light having a blue wavelength.

On the other hand, in the state in which the RGB color pixel 513 is formed on the transparent substrate 511 as described above, the common electrode 515, which is an indium tin oxide material, is formed by a thin film forming technology over an entire surface of the transparent substrate 511. do. In this case, the common electrode 515 may be any transparent and conductive material other than the indium tin oxide material.

The TFT substrate 530 is composed of a transparent substrate 531, a thin film transistor 533, a pixel electrode 535, and a signal applying line 537.

On one side of the transparent substrate 531, a plurality of thin film transistors 533 are formed in a matrix form by a semiconductor thin film process technology. In this case, the number of the thin film transistors 533 is the same as the number of the RGB color pixels 513 described above.

This thin film transistor 533 is composed of a gate electrode G, a source electrode S, a drain electrode D, and a channel layer C, as shown in FIG. 9A.

More specifically, the channel layer C is a layer in which electrical properties are changed from a conductor to a non-conductor and from a non-conductor to a conductor. This layer is formed on the upper surface of the transparent substrate 531 in one embodiment. Meanwhile, the gate electrode G is formed to be insulated from the channel layer C on the upper surface of the channel layer C first formed on the upper surface of the transparent substrate 531. In addition, the source electrode S is electrically connected to one side of the channel layer C based on the gate electrode G. On the other hand, the drain electrode D is electrically connected to the other side of the channel layer C based on the gate electrode G.

The gate line 537b is connected to the gate electrode G of all the thin film transistors in each row among the thin film transistors 533 arranged in the matrix form, and the source electrode S of all the thin film transistors in each column is connected to the gate electrode G. Data line 537a is connected.

The driving module 540 is connected to the gate line 537b and the data line 537a to apply a driving signal to the thin film transistors 533.

Meanwhile, in the drain electrode D of all the thin film transistors 533, the pixel electrode 535 made of a transparent and conductive indium tin oxide material is formed by a thin film process technology. In this case, the pixel electrode 535 faces the RGB color pixels 513 of the color filter substrate 510 described above.

Between the TFT substrate 530 and the color filter substrate 510 having such a configuration, a liquid crystal layer 520 in which light transmittance is changed by an electric field between the common electrode 515 and the pixel electrode 535 is injected into the liquid crystal layer. To form.

The liquid crystal display panel assembly 500 having such a configuration includes the lamp 100 illustrated in FIGS. 4A to 4C, the lamp 200 illustrated in FIGS. 5A to 5C, and the FIGS. 6A to 6C described above. Any one of the lamp 300 can be applied to have a positional relationship of FIG.

At this time, the lamps 100, 200, and 300 are all powered from the power supply 270 in a parallel manner as shown in FIG. 10 to receive the light required for the display.

Meanwhile, FIG. 8 illustrates a method of supplying power to the lamp tube by a common electrode somewhat different from the electrodes shown in FIGS. 4A, 5A, and 6A. Hereinafter, reference numeral 850 will be given to the lamp, and reference numeral 840 will be given to the lamp tube.

At this time, the lamp tube 840 shown in Figure 8 is arranged in a plurality in a parallel manner inside the storage container 400. Discharge gas is injected into the lamp tube 840, and a fluorescent material is applied to the inner wall.

At this time, the lamp tubes 840 are simultaneously supplied with power by two common electrodes 800. More specifically, in one embodiment of the common electrode 800, any one common electrode may be composed of at least two pieces again. This is to improve the assembly performance of the common electrode 800 and the lamp tube 840. In the present invention, the common electrode 800 divided into two embodiments will be used. The two common electrodes 800 are again an upper common electrode 810 and a lower common electrode 820.

At this time, the lower common electrode 820 is composed of lamp tube pedestals 822 provided in the number of the lamp tube 840 in one embodiment and the first connecting member 824 electrically connecting them. At this time, the lamp tube pedestal 822 supports the bottom surface of the lamp tube 840, and has a first length W1.

On the other hand, the upper common electrode 820 electrically coupled with the lower common electrode 820 is composed of a lamp tube cover 812 and a second connection member 814 electrically connecting them to each other. At this time, the lamp tube cover 812 is provided as the number of the lamp tube 840, the length of the lamp tube cover 812 has a second length W2 shorter than the first length of the lamp tube pedestal 822.

As such, the length W2 of the lamp tube cover 812 is shorter than the length W1 of the lamp tube pedestal 822 in order to minimize the amount of light generated in the lamp tube 840 is blocked by the lamp tube cover 812. .

The lamp 850 having such a configuration is fixed to the base surface of the storage container 400. As such, the light generated from the lamp 850 fixed to the bottom surface of the storage container 400 has a high luminance and a low luminance, and thus has a very uneven luminance distribution.

In order to overcome the uneven luminance distribution as described above, a diffusion plate 280 is further provided between the lamp 850 and the liquid crystal display panel assembly 500 in the present invention.

Hereinafter, a method of assembling a unique assembly of a liquid crystal display according to an embodiment of the present invention will be described in more detail with reference to FIG. 8.

First, both sides of the inner bottom surface of the storage container 400 are provided with lamp tube pedestals 820 spaced apart to be in contact with both ends of the lamp tube 840. Thereafter, a lamp tube 840 is seated on the lamp tube pedestal 820. At this time, before the lamp tube 840 is seated on the lamp tube pedestal 820, a dielectric layer (not shown) having a required dielectric capacity is further formed in the lamp tube pedestal 820.

As described above, the lamp tube cover 812 is coupled to the lamp tube 840 while the lamp tube 840 is coupled to the lamp tube pedestal 820. Here too, a dielectric layer (not shown) having the required dielectric capacity is further formed where the lamp tube cover 812 and the lamp tube 840 meet.

Thus, a middle chassis (not shown) is further assembled on the upper surface of the storage container 400 in a state in which the lamp tube pedestal 820, the lamp tube 840, and the lamp tube cover 812 are formed inside the storage container 400. Can be. The middle chassis serves to couple the storage container 400, the diffusion plate 280, and the liquid crystal display panel assembly 500 to each other.

As such, when the middle chassis is coupled to the storage container 400, the upper surface of the middle chassis may have an upper surface of the diffusion plate 280 in a state in which the diffusion plate 280 is fixed at a designated position as shown in FIG. 8. The liquid crystal display panel assembly 500 is fixed again to assemble the liquid crystal display device.

As described in detail above, when one lamp is used to generate the light required to perform the display from the liquid crystal display, the low power consumption and the light utilization efficiency can be doubled, and the liquid crystal display panel using the plurality of lamps. When generating the light required to perform the display from the assembly has a variety of effects, such as low power consumption, doubling the efficiency of use of light as well as minimizing the luminance deviation between the lamps.

In the detailed description of the invention described above with reference to the preferred embodiment of the present invention. For example, in the present invention, it is described as a preferred embodiment in which two electrodes coupled to both sides of the lamp tube are separated into two and then coupled to the lamp tube in one embodiment. The electrode of the may be coupled to the lamp tube in the state of separation and the remaining electrodes may be coupled to the lamp tube in the state of separation. Accordingly, those skilled in the art or those skilled in the art may variously modify and change the present invention without departing from the spirit and technical scope of the present invention as set forth in the claims below. It will be appreciated.

Claims (15)

A lamp tube in which a fluorescent material is coated on an inner wall of the lamp to receive light from an external power source, and into which discharge gas is injected; And And an electrode configured to receive the lamp tube and to supply the external power to an outer surface of the lamp tube. The lamp of claim 1, further comprising an adhesive layer between the lamp tube and the electrode, wherein the adhesive layer is formed of a dielectric material. The lamp of claim 1, wherein the electrode is inserted into both ends of the lamp tube, and an opening is formed at a side to which light is supplied. A lamp including an electrode disposed on an outer wall of a lamp tube in which discharge gas is injected and fluorescent material is coated on an inner wall to receive light from an external power source; And And a conductive socket to which the electrode of the lamp is received and to which external power is supplied. 5. The method of claim 4, wherein the conductive socket and the electrode are in direct contact, the conductive socket is longer than the length of the electrode, the opening is formed so that the electrode is not exposed to the light supply side of the conductive socket. The lamp assembly having a. Storage container; Is installed on the inner bottom surface of the storage container, the fluorescent material is applied to the inner wall so as to generate light by receiving external power, at least one lamp tube injecting discharge gas, wrapped around the lamp tube and accommodated A lamp including a pair of electrodes for supplying the external power to an outer surface; A diffusion plate installed on the path through which the light generated from the lamp is supplied through the storage container; And And a liquid crystal panel for modulating the light passing through the diffusion plate into image light including information. 7. The liquid crystal display device according to claim 6, wherein the electrode is divided into a first electrode facing the liquid crystal display panel and a second electrode facing the storage container. 8. The liquid crystal display device according to claim 7, wherein a length of the first electrode is shorter than a length of the second electrode. 8. The liquid crystal display device according to claim 7, wherein an adhesive dielectric layer is further formed between the lamp tube and the electrode. The liquid crystal display of claim 6, wherein the electrode and the electrode are connected by a conductive connection member. Storage container; Conductive sockets disposed in parallel to each other so as to face each other and are spaced apart from both inner bottom surfaces of the storage container, disposed on the outer wall of the lamp tube in which discharge gas is injected and fluorescent material is applied to the inner wall to generate light by receiving external power. A lamp assembly comprising an electrode; A diffusion plate installed on the path through which the light generated from the lamp assembly is supplied through the storage container; And And a liquid crystal panel for modulating the light passing through the diffusion plate into image light including information. The method of claim 11, wherein the conductive socket has a first length for covering the electrode at least on the side for emitting the light, the opposite side of the side for emitting the light has a second length longer than the first length It has a liquid crystal display device characterized by the above-mentioned. (Iii) installing a pair of first conductive members for the electrodes spaced apart from each other in the storage container; (Ii) bonding a portion of the lamp tube to which the fluorescent material is applied to the inner wall of the first conductive member and the discharge gas is injected; And And (iv) coupling a liquid crystal panel for receiving light from the lamp tube to display an image to the housing. 15. The method of claim 13, wherein the step of coupling the lamp tube further comprises the step of coupling the second conductive member for the electrode shorter than the first conductive member to the lamp tube to the first conductive member. Assembly method of a liquid crystal display device. 15. The method of claim 14, wherein coupling the first conductive member and the second conductive member for the electrode to the tube further comprises forming a dielectric layer between the tube, the first conductive member, and the second conductive member. Assembly method of a liquid crystal display device characterized in that.