JP2002190276A - Flat fluorescent lamp equipped with flat electrode and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat fluorescent lamp equipped with a flat electrode enabling to form a basically uniform discharge region. SOLUTION: The flat fluorescent lamp has a cavity formed by sealing a shade and a cover plate with a carbonate glass glue, and in which a vacuum will be created. At first, a pair of flat electrodes and a pair of gas absorbing thin layers are formed on the inner face of the cavity. Here, the pair of flat electrodes are arranged at the center of a cavity inside plate formed by shade inside plate and the bottom plate. With this arrangement, a uniform electric field is induced when an RF current is provided. Further, a wavy structure is introduced to the bottom face of the shade so as to improve the hardness of the bottom face and prevent the occurrence of curving phenomenon by keeping the cavity under vacuum pressure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat fluorescent lamp having a flat electrode and a method of manufacturing the same, and more particularly, to a flat fluorescent lamp having a flat electrode provided in a cavity formed by a shade and a cover plate. The present invention relates to a device capable of forming a basically uniform electric field in a cavity and a method for manufacturing the same.

[0002]

2. Description of the Related Art In the illumination design of flat fluorescent lamps, it is desirable to design the lamps to provide a sufficiently uniform light distribution. The flat fluorescent lamp is applied to various uses, for example, an advertisement display, a liquid crystal display, and other illumination light source equipment. Ideally, flat fluorescent lamps are capable of producing uniform and high intensity light, are compact in size, require only a low starting voltage, and operate with minimal accessories such as voltage stabilizers or transformers. be able to. Traditionally, flat displays of the past have used cathode fluorescent lamps for illumination, and such fluorescent lamps are typically arranged on opposite sides of a display plate in a paired fashion. Cathode fluorescent lamps provide high illumination efficiency and long service life. However, such an arrangement cannot provide a uniform light distribution on the entire display panel. These types of fluorescent lamps were early used in portable computers and could not produce satisfactory effects on the screen. In another improvement, a flat fluorescent backlight and a wedge-shaped light tube are included so that light rays generated by a single bulb are uniformly distributed over the entire display plane. While such a combination improves the uniformity of the light beam, it does not allow the flat display to generate the light intensity normally required.

[0003] Others have used flat fluorescent lamps on the top surface of the display panel illumination, which is described in US Patent Application No. 5,536,999, in which flat fluorescent lamp devices add a meandering channel to a flat plate. And four to seven chambers, and an electrode is added to the rearmost end of the sub-chamber. This is as shown in FIGS. In a typical design of a flat fluorescent lamp, a phosphor coat is applied to the bottom plate and the upper plate, a reflective coat is applied only to the bottom plate, and the flat fluorescent lamp is activated by a high voltage of approximately 1 kV to 3 kV. As well.

As shown in FIG. 1, a traditional flat fluorescent lamp 10 includes a lamp body 12 and two side walls 1.
Four and two end walls 16 define a rectangular chamber with side walls 14 and end walls 16 adjoining a base 18 to form a cavity 20. A transparent cover plate 22 covers the lamp body 20 and is formed at the side wall 14 and the upper edge of the end wall 16 to form a closed cavity 20, and a chamber wall 24 extends between the cover plate 22 and the base 18 and extends. 1 protrudes from the wall 16 toward the other end wall 16 and retains a gap and is not connected to the other end wall 16.
As shown in FIG. 2, the side wall 14, the end wall 16 and the channel wall 24 form a meandering channel 26 extending from the first electrode 28 to the second electrode 30.

[0005] Barrier walls 32, 34 are positioned close to the electrodes 28 and 30 of the serpentine channel 26 and extend upward from the base 18 toward the cover plate 22 to a small distance from the cover plate 22. Then, the opening is reserved in this portion. The barrier walls 32, 34 and the lamp body 12 are connected and extend laterally halfway between one of the side walls 14 and the adjacent channel wall 24 and parallel to the end wall 16. The barrier walls 32, 34 are on the underside of the serpentine channel 26 and form lateral insulating barriers.

One passage formed by a meandering channel 26 surrounding the middle of the insulated side wall 14 and end wall 16 is provided for the flow of electrons between the first electrode 28 and the second electrode 30. FIG. 2 is a sectional view taken along line 2-2 of FIG.
FIG. 3 is a sectional view taken along line 3-3 in FIG.

The flat fluorescent lamp design shown in FIG. 1 can provide a more uniform light beam than other traditional flat fluorescent lamps, and as electrons march through each single serpentine channel 26, 180 each time it hits end wall 16
Invert degrees. Such a 180 degree inversion indicates that the fluorescent lamp requires a relatively high starting voltage, and that a relatively high starting voltage indicates that a relatively large voltage stabilizer or transformer is required. Therefore, the weight and area of the fluorescent lamp accessories are increased.

A helical channel 26 between the first electrode 28 and the second electrode 30 is provided for electron transfer, such a helical channel increases the length of the electron transfer path, and such a structure is As shown in FIGS. 1 and 2, it is rather complex and requires a complicated manufacturing process, which requires relatively high manufacturing costs. An alternative scheme is shown in FIGS. 4 and 5, in which the flat fluorescent lamp 40 is manufactured at relatively low manufacturing costs, such that the flat fluorescent lamp 40 includes electrodes 36, 38 with end walls 42, 44, respectively. Cavity 4 of flat fluorescent lamp 40 placed near
6 to provide a uniform electric field. FIG. 5 is a sectional view taken along line 4-4 in FIG.

In this known flat fluorescent lamp 40, a reflecting layer 48 is formed by coating on the outer layer of the lamp body 50, and the light energy generated by the electrodes 36 and 38 is uniformly dispersed by the reflecting layer 48 over the entire inner surface of the cavity 46. I do. However, in such a flat fluorescent lamp, the electrodes 36 and 38 are arranged at the center of the lamp body 50, and the distribution of the electron discharge and the light beam becomes non-uniform.
Even when 2 was applied to the inner surfaces of the upper plate 54 and the lower plate 56, such an uneven phenomenon occurred.

[0010]

It is an object of the present invention to provide a kind of flat fluorescent lamp with a flat electrode, which does not have the drawbacks and deficiencies of known flat fluorescent lamps.

It is another object of the present invention to provide a flat fluorescent lamp having a kind of flat electrode, which has a cavity formed by connecting a shade and a glass cover plate with a glass glue. Shall be located on the inner surface.

Yet another object of the present invention is to provide a flat fluorescent lamp with a kind of flat electrode, wherein the flat electrode is located in a rectangular and sealed vacuum cavity, It is assumed that flat electrodes are provided on each of the corresponding side plates of the lamp body.

It is another object of the present invention to provide a kind of flat electrode-equipped flat fluorescent lamp, which further comprises a pair of mercury generators installed in a sealed vacuum cavity. It is assumed that one mercury generator is installed on the corresponding side plate of the lamp body in the vicinity of the flat electrode.

It is yet another object of the present invention to provide a kind of flat fluorescent lamp with a flat electrode, which is made of iron material and provides the required mercury vapor in the cavity with Hg _x Ti. _It is assumed that it has a pair of thin absorbent layers coated with _y .

Still another object of the present invention is to provide a kind of flat fluorescent lamp provided with a flat electrode.
It comprises a pair of absorbent thin layers made of a nichrome material, one surface coated with Al-Zn and the other surface coated with Hg _x Ti _y .

Another object of the present invention is to provide a method for manufacturing a flat fluorescent lamp having a kind of flat electrode, wherein the flat fluorescent lamp has a pair of flat electrodes and a pair of thin absorbing layers formed of a shade and a glass cover. Shall be installed in a sealed vacuum cavity.

It is another object of the present invention to provide a method for manufacturing a flat fluorescent lamp having a flat electrode, which method further provides a shade having a ripple-like structure on the upper surface of a bottom plate. Shall be included.

[0018]

According to a first aspect of the present invention, in a flat fluorescent lamp having a flat electrode, at least a flat bottom plate and a side plate extending upward along the edge of the bottom plate are provided. Combined, the height of the side plate is the same as the thickness of the flat fluorescent lamp, the above-mentioned shade, and a cover plate, with a flat top and bottom,
The area of each surface and the area of the bottom plate are the same, and a tight vacuum cavity is formed by the sealing combination of the bottom surface of the cover plate and the side plate. The cover plate, the top surface of the bottom plate and the bottom surface of the cover plate The applied fluorescent coat and a pair of flat electrodes, each flat electrode having a rectangular shape, is installed in a tight vacuum cavity, is located near both side plates, and is uniform in the cavity. A flat fluorescent lamp provided with flat electrodes, comprising the pair of flat electrodes forming a discharge field. According to a second aspect of the present invention, there is provided a flat fluorescent lamp provided with a flat electrode according to the first aspect, further comprising a pair of mercury generators installed near the respective flat electrodes. The invention according to claim 3 is characterized in that a pair of long and thin mercury generators are provided with an Hg _x Ti _y coat,
2. The flat fluorescent lamp according to claim 1, wherein the mercury generator is provided in the closed cavity and near the flat electrode. According to a fourth aspect of the present invention, there is provided a flat fluorescent lamp provided with a flat electrode according to the second aspect, wherein one heating device for heating the temperature of the mercury generator higher than an ambient temperature is provided. I have. The invention of claim 5 is
The flat fluorescent lamp according to claim 1, wherein the shade and the cover plate are made of a ceramic material. The invention according to claim 6 is the flat fluorescent lamp provided with flat electrodes according to claim 1, wherein the shade and the cover plate are made of a glass material. According to a seventh aspect of the present invention, there is provided the flat fluorescent lamp provided with a flat electrode according to the sixth aspect, wherein a side plate of the shade and a bottom surface of the cover plate are sealed with a glass glue. The invention according to claim 8 is the flat fluorescent lamp provided with flat electrodes according to claim 1, wherein the upper surface of the bottom plate of the shade has a ripple-like structure. According to a ninth aspect of the present invention, there is provided the flat fluorescent lamp provided with flat electrodes according to the first aspect, wherein the upper surface of the bottom plate of the shade has a ridge pattern structure. According to a tenth aspect of the present invention, the ripple-like structure includes many ripples and the distance between the ripples is 1 m.
10. The flat fluorescent lamp provided with flat electrodes according to claim 9, wherein the height of the flat fluorescent lamp is set to 0.7 mm or less. The invention according to claim 11 is characterized in that the fluorescent coat is applied to an upper surface of a bottom plate of a shade and a bottom surface of a cover plate, and the fluorescent coat includes a phosphor. It has a flat fluorescent lamp. The invention of claim 12 is
3. The flat fluorescent lamp according to claim 2, wherein the mercury generator is composed of a pair of thin metal material absorbing layers. The invention according to claim 13 is characterized in that the absorption thin layer is composed of a nickel material, and Al-Zn is formed on one surface of the absorption thin layer composed of the nickel material.
13. A flat fluorescent lamp provided with flat electrodes according to claim 12, wherein Hg _x Ti _y is applied to the other surface. According to a fourteenth aspect of the present invention, in the method for manufacturing a flat fluorescent lamp provided with a flat electrode, at least a shade, a flat bottom plate and a side plate extending upward along an edge of the bottom plate are combined. Altitude was the same as the thickness of the flat fluorescent lamp,
The step of providing the shade, the cover plate is provided, having a flat top and bottom surfaces, the area of each surface and the area of the bottom plate are the same, the step of providing the cover plate, the top surface of the bottom plate, A step of applying a fluorescent coat on the bottom surface of the cover plate and a step of installing a pair of flat electrodes, wherein each electrode is placed in a rectangular shade at both sides of the bottom plate, and the pair of flat electrodes is placed. A method for manufacturing a flat fluorescent lamp provided with flat electrodes, comprising the steps of: joining a side plate of the shade and a bottom surface of the cover plate to form a closed cavity. The invention according to claim 15 includes a step of installing a pair of mercury generators, and in this step, each of the mercury generators is installed in a closed cavity between the flat electrode and the side plate. According to another aspect of the present invention, there is provided a method of manufacturing a flat fluorescent lamp. The invention of claim 16 includes the step of providing a pair of absorbent thin layer, in this step, the absorption thin layer is made of a metallic material, Al-Zn alloy on a surface is, the Hg _x Ti _y on the other one side A method for manufacturing a flat fluorescent lamp according to claim 14, wherein the method is applied. The invention of claim 17 includes the step of providing a heating device, wherein the heating device is used to raise the temperature of the absorbent lamina above 300 ° C.
According to another aspect of the present invention, there is provided a method of manufacturing a flat fluorescent lamp. An eighteenth aspect of the present invention is the flat fluorescent lamp manufacturing method according to the fourteenth aspect, including a step of manufacturing the shade and the cover plate from glass. A nineteenth aspect of the present invention is the method of manufacturing a flat fluorescent lamp according to the fourteenth aspect, further comprising a step of joining a bottom surface of the cover plate and a side plate of the shade with a glass glue. According to a twentieth aspect of the present invention, there is provided the method of manufacturing a flat fluorescent lamp according to the fourteenth aspect, comprising a step of forming a ripple-like structure on the upper surface of the bottom plate of the shade. According to a twenty-first aspect of the present invention, there is provided the method of manufacturing a flat fluorescent lamp according to the fourteenth aspect, comprising a step of forming a ridge pattern structure on an upper surface of the bottom plate of the shade. Claim 2
According to a second aspect of the present invention, there is provided the method of manufacturing a flat fluorescent lamp according to claim 14, comprising a step of applying a coat containing a phosphor to the upper surface of the bottom plate of the shade and the bottom surface of the cover plate. According to a twenty-third aspect of the present invention, in the method of manufacturing a flat fluorescent lamp provided with a pair of flat electrodes for illuminating a liquid crystal display, at least a shade is provided, and the flat fluorescent lamp is extended upward along a flat bottom plate and an edge of the bottom plate. Combined side plates, height of side plate is 5mm
The following, provided with many ripple-like structures for maintaining the flatness of the bottom plate when the bottom plate is depressurized on the upper surface of the bottom plate, providing the shade, a cover plate, and Providing the cover plate having a flat top surface and a bottom surface, the area of each surface being equal to the area of the bottom plate, and forming a tight vacuum cavity by a sealing combination of the bottom surface and the side plate of the cover plate; And forming a fluorescent coating on the upper surface of the bottom plate and the bottom surface of the cover plate in the cavity, and a pair of flat electrodes,
A pair of flat electrodes, wherein each flat electrode has a rectangular shape and is installed in a tight vacuum cavity, is located near both side plates, and forms a uniform discharge field in the cavity. Providing a pair of absorbing thin layers, wherein the steps are a pair of absorbing thin layers, each absorbing thin layer is disposed between a flat electrode and a side plate, and generates mercury vapor in the cavity. This is a method for manufacturing a flat fluorescent lamp provided with a pair of flat electrodes for illuminating a liquid crystal display. The invention of claim 24 is
24. A pair of liquid crystal displays according to claim 23, wherein an Al-Zn alloy is applied to one surface of each of the thin absorption layers of the pair of absorption thin layers, and Hg _x Ti _y is applied to the other surface. Is a method for manufacturing a flat fluorescent lamp provided with flat electrodes. The invention according to claim 25 is characterized in that only one set of mercury generators is provided in the vicinity of a flat electrode to eliminate a pair of absorbing thin layers, and a pair for illuminating a liquid crystal display according to claim 23. Is a method for manufacturing a flat fluorescent lamp provided with flat electrodes.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a preferred embodiment, a flat fluorescent lamp having a pair of flat electrodes is provided, the lamp including a shade, a cover plate, and a pair of flat electrodes. The shade comprises a combination of a flat bottom plate and side plates extending upward along the edges of the bottom plate, the height of the side plates being basically the same as the thickness of the flat fluorescent lamp. The cover plate has a flat top surface and a bottom surface, the area of each surface and the area of the bottom plate are the same, and a tight vacuum cavity is formed by the sealing combination of the bottom surface of the cover plate and the side plate. A fluorescent coat is applied on the bottom plate upper surface and the cover plate bottom surface. Each flat electrode of the pair of flat electrodes has a rectangular shape, is installed in a tight vacuum cavity, is located near both side plates, and forms a basically uniform discharge field in the cavity. .

The flat fluorescent lamp further includes a pair of mercury generators, each located near a flat electrode. The flat fluorescent lamp further includes a pair of Hg _x Ti _y coated mercury generators located in the closed cavity, the mercury generator being located near the flat electrode. The flat fluorescent lamp further includes one heating device, whereby the temperature of the mercury generator is raised above the ambient temperature. The shade and the cover plate are made of ceramic or glass material, the bottom surface of the cover plate and the side plate of the shade are hermetically connected by a glass glue, and a ripple-like structure is provided on the top surface of the bottom plate.
It is composed of many ripples 10 mm apart from m, and the height is 0.7 mm or less.

On the inner surface of the flat fluorescent lamp, a fluorescent coat is applied and formed on the upper surface of the bottom plate and the bottom surface of the cover plate, the fluorescent coat includes a phosphor, and a pair of mercury generators is formed of a pair of metal or nickel material. Al-Zn is applied to one side of the absorbing thin layer composed of, and Hg _x Ti is applied to the other side.
It is formed by applying _y .

The present invention further provides a method for manufacturing a flat fluorescent lamp provided with a pair of flat electrodes. First, a shade is provided, and the shade is formed by combining a bottom plate and a side plate extending upward along an edge of the bottom plate,
The height of the side plate is basically the same as the thickness of the flat fluorescent lamp. Next, a cover plate is provided. One cover plate has flat top and bottom surfaces, the top and bottom surfaces and the bottom plate have the same area, and a fluorescent coat is applied to the bottom plate top surface and the bottom surface of the cover. Further, a pair of flat electrodes is provided. Each flat electrode is installed near both side plates,
The bottom surface of the cover plate and the four side plates are hermetically combined to form a tight vacuum cavity.

The present invention also relates to a method for manufacturing a flat fluorescent lamp having a pair of flat electrodes, and further comprising the step of providing a pair of mercury generators. The mercury generator is basically installed in a closed vacuum cavity, and one mercury generator is installed between the flat electrode and the side plate. The method further includes providing a pair of thin absorbent layers. Each one absorbing thin layer is made of a metal material, and one side is coated with an Al-Zn alloy, and the other side is coated with Hg _x Ti _y . The method further includes providing a heating device that is used to raise the temperature of the absorbent lamina above 300 ° C.

The present invention further provides a method of manufacturing a flat fluorescent lamp provided with a pair of flat electrodes, the method including the step of providing one shade and one cover plate made of glass. The bottom and side plates of the cover plate are sealed with a glass glue connecting material. The method further:
Forming a ripple-like structure on the upper surface of the bottom plate. The method may further include a step of applying and forming a fluorescent coat on the top surface of the bottom plate and the bottom surface of the cover plate.

In another embodiment, the flat fluorescent lamp with a flat electrode is a flat fluorescent lamp for illuminating a liquid crystal display, which includes a shade, a cover plate, a pair of flat electrodes, and a pair of absorbing thin layers. The shade is a combination of a bottom plate and side plates extending upward from four rounds of the bottom plate, and the height of the side plates is 5 mm or less,
Many ripple-like structures are provided on the upper surface of the bottom plate, and the function of this structure is to enable the bottom plate to be in a vacuum pressure state and to keep the surface of the bottom plate flat. The cover plate has a top surface and a bottom surface, the area of which is the same as the surface area of the bottom plate, the bottom surface of the cover plate and the side plate are combined in a sealed state to form a vacuum cavity, and the inside surface of the cavity is formed. In addition, a fluorescent coat is applied and formed on the top surface of the bottom plate and the bottom surface of the cover plate. The pair of flat electrodes,
Each flat electrode is elongated and placed in a tight vacuum cavity, located beside both side plates, as well as within the cavity to create an essentially uniform discharge field. The pair of absorbing thin layers are placed between the flat electrode and the side plate to provide the required mercury vapor in the cavity.

In the method of manufacturing a flat fluorescent lamp provided with a pair of flat electrodes, a pair of thin absorbing layers are further provided, the thin absorbing layers being made of nickel material and having one side of A.
Hg _x Ti _y is applied to the other side of the l-Zn alloy.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In accordance with the present invention, a flat fluorescent lamp having a pair of flat electrodes is arranged with the pair of flat electrodes on either side in a rectangular shade, thereby generating a uniform electric field in the cavity. . The flat fluorescent lamp further includes a pair of absorbing thin layers located beside the flat electrode, each one absorbing thin layer being located beside one flat electrode, and the absorbing thin layer is made of a metal material such as nickel. At the same time, an Al-Zn alloy thin film is applied and formed on one side,
The other side is coated with a mercury compound. The flat fluorescent lamp further comprises one heating device, which raises the temperature of the absorbing thin layer above the ambient temperature, so that mercury vapor can quickly reach the absorbing thin layer from the mercury container.

In another embodiment, the bottom plate of the shade is rippled, thereby improving the hardness of the shade. Thus, in the manufacturing process of the flat fluorescent lamp, the bottom plate of the shade is prevented from being curved in the process of depressurizing and evacuating the cavity, thereby preventing the volume and shape of the cavity between the bottom plate and the cover plate from being altered. Improving the hardness of the seed is very important in the manufacturing process. Generally, the distance between the ripples is 1 mm to 10 mm, and preferably 5 mm.

According to the present invention, in a method of manufacturing a flat fluorescent lamp provided with a pair of flat electrodes, a flat fluorescent lamp is manufactured by the following steps. One shade and one cover plate made of glass are produced. The bottom and side plates of the cover plate are sealed with sticky glass, and the whole closed area forms one cavity. A pair of electrodes and a pair of absorbing thin layers are provided in the cavity. One electrode and one absorbing thin layer form a pair of devices, each placed at the end of the cavity, forming a uniform electric field in the cavity, and the brightness and light uniformity of the flat fluorescent lamp To improve.

The manufacturing method of the flat fluorescent lamp of the present invention is shown in FIGS. The seed 60 is formed by combining a bottom plate 60 and a side plate 64 extending upward along the periphery of the bottom plate 60. The height of the side plate 64 basically corresponds to the thickness of the flat fluorescent lamp, and the shade 60 is made of a ceramic material such as glass. In place of this glass, lime soda glass, for example, 0080 or 7059 provided by Conning can be used. A suitable shade is approximately 50 mm x 40 mm x 3.5 mm. Glass glue 7 when using lime soda glass 0080
575, the shade 60 and the cover plate 70 are bonded together (FIG. 9).
), When using hard glass 7059 for shades,
They are connected by a glass glue 1301 (provided by Conning).

The next step in the manufacturing process is a step of applying a fluorescent coat 66 to the upper surface 68 of the bottom plate 62 as shown in FIG. Fluorescent coat 66 may be any suitable fluorescent material, and a relatively commonly used phosphor may be a phosphor or a three-wavelength phosphor.
6, a pair of electrodes 72 and a pair of absorbing thin layers 74
Is installed in the shade 60. As shown in FIG. 4, the pair of electrodes 72 are formed in a rectangular shape and are supported at hanging points 76. The length of the electrodes 72 basically corresponds to the width of the inside of the shade 60, and the electrodes 72 correspond to the lamp body. When the width of the lamp body 80 is 40 mm,
The length of the electrode approaches 40 mm. The electrodes are made of any suitable material, for example, nickel. Appropriate dimensions of the electrode 72 are about 0.1 mm thick, 2.5 mm wide, and 40 mm long. As shown in FIG. 9, the length of the flat electrode 72 spans the width of the entire shade 60 and forms a uniform electric field in the cavity 78 formed by the shade 60 and the cover plate 70. The glass glue 84 is used to connect the upper glass cover plate 70 and the side plate 64 around the shade 60, and this connection forms a sealed vacuum space on the inner surface of the cover plate and the side plate. In operation, this flat electrode 72 provides about 15 kHz of energy, can create a uniform discharge field in the cavity 78, and has a DC current magnitude of about 0.1 to 10 amps (depending on the size of the cavity). It is said.

A pair of thin absorbing layers 74 are provided between the flat electrode 72 and the side plate 64 in the cavity 78. When the total length of the cavity is 40 mm, the length of the absorbent thin layer 74 is approximately 20 mm (see FIG. 10). This absorbent thin layer 74 is formed by a pair of hanging points 88 so that the cavity 7
8 and is supported. Cover plate 70 and shade 6
After the glass glue 84 is connected and integrated, the cavity 78 is depressurized by the vacuum conduit 90 to make a vacuum,
After appropriately reducing the pressure in the cavity 78 and filling the mixed gas into the cavity, the vacuum conduit 90 is sealed using a welding method.

The absorption thin layer 74 is formed by forming a bottom material with a nickel material, applying an Al-Zn alloy on one surface thereof, and applying Hg _x Ti _y on the other surface. Once the absorbing thin layer is triggered by being heated to an appropriate temperature, for example, a temperature higher than 40 ° C. by an appropriate heating method (not shown), the Al—Zn alloy thin layer is mixed with the electrode and a mixed gas of many different elements. It absorbs gas impurities generated by the reaction, for example, oxygen and nitrogen.
The use of Al-Zn alloy strengthens the flat electrode and extends the life. On the other hand, Hg _x Ti _y applied to the other surface of the absorbing thin layer 70 generates mercury vapor and adheres to the inner surface of the cavity 78 to greatly improve the brightness of the flat fluorescent lamp.

According to another embodiment, as shown in FIG. 11, a ripple-like structure 96 is formed on the upper surface 98 of the bottom plate 92 of the shade 92. It should be noted that the wavy structure 96 is provided for the purpose of improving the hardness of the bottom plate 94.
Can be any suitable area, and the bottom plate 94 thus having improved hardness prevents the bottom plate from curving when the cavity 78 is depressurized, as shown in FIG.
The ripple structure 96 may be any other type of ripple structure as long as it can achieve the purpose of improving hardness. The overall height of the cavity 78 is approximately 1.5 mm, and the size of the ripple-like structure 96 is approximately 0.7 mm or less. The distance between the ripples is approximately 1 mm to 10 mm, or preferably 4 mm to 6 mm.

According to another embodiment of the shade 100, FIG.
As shown in FIG. 2, only one of the pair of mercury generators 74 or the pair of absorbing thin layers is provided together with the pair of electrodes 72. Therefore, the absorbing thin layer and the supporting device shown in FIG. In the embodiment, the device is not always necessary.

In the present invention, the spectrum obtained by the apparatus shown in FIG. 10 is as shown in FIG.
The blue, green and red light generated by the three-wavelength phosphor coating provided on the inner surface of the shade collectively forms white light.

In the present invention, a novel flat fluorescent lamp provided with a flat electrode and a method of manufacturing the same are described in FIGS. 6 to 13 already described above.

The above is a detailed description of the present invention, based on which a person having ordinary knowledge in the field to which the technology of the present invention belongs can carry out the present invention.

The above description of the embodiments does not limit the scope of the present invention, and any modification or alteration of details that can be made based on the present invention belongs to the scope of the present invention.

[0040]

The present invention relates to a flat fluorescent lamp, in which a shade and a cover plate are connected by a carbon dioxide glass glue to form a closed vacuum, and a pair of flat electrodes and a pair of gas-absorbing thin layers are first used in a daylight lamp. Hang on the inner surface of the cavity.
A pair of flat electrodes are placed in the center of the cavity inner plate formed by the shade inner plate and the bottom plate. When applying RF current to the electrodes, an essentially uniform electric field can be generated within the cavity. The bottom plate of the sail has a rippled structure to improve the hardness of the bottom plate and to prevent the cavity from bending under vacuum pressure. The present invention ameliorates the drawbacks of known techniques, has inventive step and industrial utility value, and its structure and manufacturing method are not described in any publications issued before the It has novelty because it has not been done. Therefore, it can be said that the present invention is an invention having the requirements of a patent.

[Brief description of the drawings]

FIG. 1 is a structural view of a flat fluorescent lamp with a flat electrode employing a traditional meandering channel.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a plan view of a technique in which a well-known pair of electrodes are respectively installed in the middle of a bottom plate.

FIG. 5 is a sectional view taken along line 4-4 in FIG. 4;

FIG. 6 is a sectional view of a shade of the flat fluorescent lamp of the present invention.

FIG. 7 is a cross-sectional view of a flat fluorescent lamp of the present invention after a fluorescent coat is applied to a shade.

FIG. 8 is a cross-sectional view of a flat fluorescent lamp of the present invention after a set of flat electrodes and a set of thin absorbing layers are installed in the shade.

9 is a cross-sectional view after the cover plate is coupled to the shade of FIG. 8 of the present invention.

FIG. 10 is a plan view showing the structure of a flat fluorescent lamp provided with a pair of flat electrodes and a pair of thin absorbing layers according to the present invention.

FIG. 11 is a cross-sectional view of a preferred embodiment of the flat fluorescent lamp of the present invention, in which a ripple-like structure is provided on the upper surface of the bottom plate of the shade to improve the hardness of the shade.

FIG. 12 is a plan view of another preferred embodiment of the flat fluorescent lamp of the present invention, wherein a set of mercury generators or absorbing thin layers are each located beside the flat electrode.

FIG. 13 is a spectrum graph of the flat fluorescent lamp of the present invention.

[Explanation of symbols]

 Reference Signs List 10 fluorescent lamp 12 lamp body 14 side wall 16 end wall 18 base 20 cavity 22 cover plate 24 chamber wall 26 meandering channel 28 first electrode 30 second electrode 32 barrier wall 34 barrier wall 36 electrode 38 electrode 40 flat fluorescent lamp 42 Side plate 44 Side plate 46 Cavity 48 Reflective layer 50 Lamp body 52 Fluorescent coat 54 Upper plate 56 Lower plate 58 Substance of inner layer of insulating case 60 Seed 62 Bottom plate 64 Side plate 66 Fluorescent coat 68 Top surface 70 Cover plate 72 Electrode 74 Electrode 76 Hanging point 78 Cab Tee 80 Lamp body 84 Glass glue 88 Hanging point 90 Vacuum conduit 92 Seed 94 Bottom plate 96 Ripple structure 98 Top surface 100 Seed

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 5C015 UU06 5C043 BB04 CC09 CD08 DD01 EA01 EB16

Claims (25)

[Claims] 1. A flat fluorescent lamp provided with a flat electrode, wherein at least a flat bottom plate and a side plate extending upward along an edge of the bottom plate are combined, and the height of the side plate is flat fluorescent lamp. The above-mentioned shade and the cover plate, which have the same thickness as the lamp, are provided with flat top and bottom surfaces, and the area of each surface is the same as that of the bottom plate. The bottom surface of the cover plate and the side plate are sealed. The above-mentioned cover plate, which forms a tight vacuum cavity by combination, a fluorescent coat applied to the top surface of the bottom plate and the bottom surface of the cover plate, and a pair of flat electrodes, each flat electrode having a rectangular shape and tight A pair of flat electrodes which are installed in a vacuum cavity and are located near both side plates, and which form a uniform discharge field in the cavity. Wherein, the flat electrode deployment of the flat fluorescent lamp. 2. The flat fluorescent lamp provided with flat electrodes according to claim 1, further comprising a pair of mercury generators respectively installed near the respective flat electrodes. 3. A pair of long and thin mercury generators having Hg _x Ti
The flat fluorescent lamp provided with a flat electrode according to claim 1, wherein a _y- coat is provided, and the mercury generator is located in the closed cavity and near the flat electrode. 4. The flat fluorescent lamp provided with a flat electrode according to claim 2, wherein one heating device for heating the temperature of the mercury generator higher than the ambient temperature is provided. 5. The flat fluorescent lamp with a flat electrode according to claim 1, wherein the shade and the cover plate are made of a ceramic material. 6. The flat fluorescent lamp according to claim 1, wherein the shade and the cover plate are made of a glass material. 7. The flat fluorescent lamp according to claim 6, wherein the side plate of the shade and the bottom surface of the cover plate are sealed with a glass glue. 8. The flat fluorescent lamp according to claim 1, wherein the upper surface of the bottom plate of the shade has a rippled structure. 9. The flat fluorescent lamp according to claim 1, wherein an upper surface of the bottom plate of the shade has a ridge pattern. 10. The flat according to claim 9, wherein the ripple-like structure includes many ripples, the distance between the ripples is 1 mm to 10 mm, and the height is 0.7 mm or less. Flat fluorescent lamp with electrodes. 11. The flat fluorescent lamp according to claim 1, wherein the fluorescent coat is applied to an upper surface of a bottom plate of a shade and a lower surface of a cover plate, and the fluorescent coat includes a phosphor. lamp. 12. The flat fluorescent lamp with a flat electrode according to claim 2, wherein the mercury generator is composed of a pair of thin metal material absorbing layers. 13. The absorption thin layer composed of a nickel material, wherein one surface of the absorption thin layer composed of a nickel material is
13. The flat fluorescent lamp according to claim 12, wherein 1-Zn is coated with Hg _x Ti _y on the other side. 14. A method for manufacturing a flat fluorescent lamp having a flat electrode, wherein at least a flat bottom plate, which is made of a seed, and a side plate extending upward along an edge of the bottom plate, is combined. Providing the shade with the same thickness as that of the flat fluorescent lamp; and forming a cover plate, having flat top and bottom surfaces, wherein the area of each surface and the area of the bottom plate are the same. Providing a cover plate; applying a fluorescent coat to the top surface of the bottom plate and the bottom surface of the cover plate; and installing a pair of flat electrodes. Each electrode is located in a rectangular shade and positioned on both sides of the bottom plate. Installing the pair of flat electrodes, and joining a side plate of the shade and a bottom surface of the cover plate to form a closed cavity. , Encompasses method of flat fluorescent lamps of the flat electrode deployment. 15. The method according to claim 15, further comprising the step of installing a pair of mercury generators, wherein each mercury generator is installed in a closed cavity between the flat electrode and the side plate. The method for manufacturing a flat fluorescent lamp according to claim 14, wherein 16. Providing a pair of thin absorber layers, wherein each thin absorber layer is made of a metallic material, one side of which has an Al-Zn alloy and the other side of which has Hg _x.
The method of claim 14, wherein _Tiy is applied. 17. The flat fluorescent lamp as claimed in claim 14, comprising the step of providing a heating device, said heating device being used to raise the temperature of the absorbing thin layer above 300 ° C. Production method. 18. The method of claim 14 including the step of manufacturing said shade and said cover plate from glass.
3. The method for manufacturing a flat fluorescent lamp according to item 1. 19. The method as claimed in claim 14, further comprising the step of connecting the bottom surface of the cover plate and the side plate of the shade with a glass glue. 20. The method of claim 1, further comprising the step of forming a ripple-like structure on an upper surface of the bottom plate of the shade.
5. The method for manufacturing a flat fluorescent lamp according to item 4. 21. The method according to claim 1, further comprising the step of forming a ridge pattern on an upper surface of the bottom plate of the shade.
5. The method for manufacturing a flat fluorescent lamp according to item 4. 22. The method according to claim 14, further comprising applying a phosphor-containing coat to an upper surface of the bottom plate of the shade and a bottom surface of the cover plate. 23. A method of manufacturing a flat fluorescent lamp provided with a pair of flat electrodes for illuminating a liquid crystal display, wherein at least a flat bottom plate and a side plate extending upward along an edge of the bottom plate are provided. The above-mentioned shade, in which the height of the side plate is set to 5 mm or less and many ripple-like structures for maintaining the flatness of the bottom plate when the bottom plate is depressurized is provided on the upper surface of the bottom plate. Providing a cover plate, having flat top and bottom surfaces, the area of each surface and the area of the bottom plate being the same, and forming a tight vacuum cavity by a sealed combination of the bottom surface of the cover plate and the side plate. Providing the cover plate; forming and applying a fluorescent coat in the cavity on the top surface of the bottom plate and the bottom surface of the cover plate; The pair of flat electrodes, wherein each flat electrode has a rectangular shape and is installed in a tight vacuum cavity and is located near both side plates, and forms a uniform discharge field in the cavity. Providing a pair of absorbing thin layers, wherein the pair of absorbing thin layers are disposed between the flat electrode and the side plate, and generate mercury vapor in the cavity. A comprehensive method for manufacturing a flat fluorescent lamp provided with a pair of flat electrodes for illumination of a liquid crystal display. 24. The liquid crystal display according to claim 23, wherein an Al—Zn alloy is applied to one surface of each of the thin absorption layers of the pair of absorption thin layers, and Hg _x Ti _y is applied to the other surface. Of manufacturing a flat fluorescent lamp provided with a pair of flat electrodes for illumination. 25. A pair of flats for illuminating a liquid crystal display according to claim 23, wherein only the pair of mercury generators is provided near a flat electrode to eliminate a pair of absorbing thin layers. A method for manufacturing a flat fluorescent lamp provided with electrodes.