CN1324642C - Cold cathode plane lamp structure - Google Patents

Abstract

A cold cathode flat lamp structure is mainly composed of a first plate-like substrate, a second plate-like substrate, a phosphor, a discharge gas and a plurality of electrodes. The first plate-shaped base material is provided with a plurality of grooves, and the second plate-shaped base material is arranged on the first plate-shaped base material, so that each groove forms a closed cavity. The fluorophor is arranged on the inner wall of the closed cavity. The discharge gas is located in each sealed cavity, and the electrodes are respectively arranged at two ends of each sealed cavity. Because the first plate base material is provided with a plurality of grooves, the first plate base material can be directly jointed with the second plate base material, the manufacture of glass edge strips is omitted in the manufacturing process, and the strength of the cold cathode plane lamp can be strengthened without manufacturing a gap object on the structure.

Description

Cold cathode flat lamp structure

technical field

The present invention relates to a cold cathode flat lamp structure (Cold Cathode Fluorescent Flat Lamp, CCFFL), and in particular to a cold cathode flat lamp structure which can provide a uniform surface light source and has high structural strength.

Background technique

With the development of the industry, digital tools such as mobile phones, digital cameras, digital video cameras, notebook computers, and desktop computers are all developing in a more convenient, multi-functional and beautiful direction. However, the display screens of mobile phones, digital cameras, digital video cameras, notebook computers, and desktop computers are indispensable human-machine communication interfaces. Through the display screens of the above products, more operations can be brought to users. convenient. In recent years, most of the display screens on mobile phones, digital cameras, digital video cameras, notebook computers and desktop computers use LCD panels as the mainstream. However, since the LCD panel itself does not have the function of emitting light Therefore, a back light module must be provided under the liquid crystal display panel to provide a light source to achieve the display function.

The existing common backlight module is mainly composed of a light tube, a reflector (holder) and a light guide plate (LGP). The above-mentioned light guide plate can convert the linear light emitted by the lamp tube into a surface light source. Since the lamp tube is usually arranged on the side of the light guide plate, the uniformity of the surface light source projected by the light guide plate is poor. The light emitting surface of the light guide plate is equipped with several layers of optical films (eg, diffusion film, brightness enhancement film, etc. films). However, the price of the light guide plate and the optical films is high, which increases the cost of the backlight module. In addition, since the lamp tube, reflector and light guide plate are all separate components, an additional plastic frame must be used to carry and fix the above lamp tube, reflector and light guide plate. Therefore, it can be seen from the above that the assembly of this type of backlight module is relatively cumbersome, and the assembly cost cannot be further reduced.

Based on the above considerations, a cold-cathode flat lamp has been developed in the prior art. Because the cold-cathode flat lamp has good luminous efficiency and uniformity, and can provide a large-area surface light source, the cold-cathode flat lamp has been widely used in liquid crystal The backlight of the display panel and other application fields.

Based on the above, the cold cathode flat lamp is a kind of plasma light-emitting element, which mainly uses the electrons emitted from the cathode to collide with the passive gas between the cathode and the anode in the gas-tight cavity, and ionize the gas, Excited to form plasma. Afterwards, the excited atoms in the plasma will return to the ground state by emitting ultraviolet rays, and the emitted ultraviolet rays will further excite the phosphors in the cold cathode flat lamp to generate visible light.

FIG. 1 is a schematic top view of a conventional cold cathode flat lamp. FIG. 2 is a cross-sectional view seen from the section line A-A of FIG. 1 . Please refer to FIG. 1 and FIG. 2 together. The existing cold cathode flat lamp 100 is mainly composed of a plate base material 110, a plate base material 120, a plurality of side strips 130, a phosphor 140, a discharge gas 150 and multiple composed of electrodes 160. Wherein, the plate base material 110 and the plate base material 120 are, for example, made of glass or other transparent materials, and the edge bar 130 is arranged between the plate base material 110 and the plate base material 120, and is connected to the plate base material 110. and the edge of the plate-shaped base material 120 are connected, so that a closed cavity 170 is formed between the plate-shaped base material 110 and the plate-shaped base material 120 .

Please continue to refer to FIG. 1 and FIG. 2, the phosphor 140 is disposed on the inner walls of the plate base material 110 and the plate base material 120; the discharge gas 150 is injected into the cavity 180, and the discharge gas is, for example, xenon gas (Xe). , neon (Ne), argon (Ar) and other inert gases; and the electrode 160 is arranged in the cavity 170, and corresponds to the two ends of the plate-shaped substrate 110 and the plate-shaped substrate 120, and is connected to a power supply (Fig. (not shown) are electrically connected, and the electrodes are, for example, silver electrodes or copper electrodes.

As mentioned above, during the lighting process of the cold cathode flat lamp 100, it is mainly driven by the electrode 160, so that the electrode 160 emits electrons in the cavity 170 and collides with the discharge gas 150, ionizes the discharge gas 150, Excited to form plasma. Afterwards, the excited atoms in the plasma will return to the ground state by emitting ultraviolet rays, and the emitted ultraviolet rays will further excite the phosphors 140 on the inner walls of the plate-shaped substrate 110 and the plate-shaped substrate 120 to generate visible light.

However, although the existing cold-cathode flat lamp can provide a uniform surface light source, when it is necessary to provide a large-area surface light source, only the side strips are used to maintain the gap between the plate-shaped substrates. It is damaged by improper external force, so the thickness of the plate-shaped substrate is usually increased. Although this method can improve the overall structural strength, the increase in thickness will cause the light transmittance of the cold-cathode flat lamp to decrease, and reduce the cold-cathode flat lamp. brightness.

In addition to thickening the thickness of the plate-shaped base material, the existing cold-cathode flat lamp can also add a plurality of spacers between the two plate-shaped base materials to strengthen the structural strength of the central area, so that the cold cathode The planar lamp can withstand external atmospheric pressure and even other improper external forces, but this will make the production of the cold-cathode planar lamp more cumbersome and increase the production cost.

Contents of the invention

The object of the present invention is to provide a cold-cathode flat lamp structure, which can provide a uniform surface light source, and can effectively improve the overall structural strength of the cold-cathode flat lamp, so as to prevent the cold-cathode flat lamp from being damaged by improper external force.

The invention proposes a cold cathode planar lamp structure, which is mainly composed of a first plate base material, a second plate base material, a phosphor, a discharge gas and a plurality of electrodes. Wherein, the first plate-shaped base material has a plurality of grooves, and the second plate-shaped base material is arranged on the first plate-shaped base material, so that these grooves form a plurality of airtight cavities; phosphors are arranged in these airtight cavities Part or all of the inner walls; the discharge gas is arranged in these airtight cavities, and the electrodes are respectively arranged at both ends of these airtight cavities.

The present invention also proposes a cold-cathode planar lamp structure, which is mainly composed of a first plate base material, a second plate base material, a phosphor, a discharge gas and a plurality of electrodes. Wherein, the first plate-shaped base material has a plurality of first grooves; the second plate-shaped base material has a plurality of second grooves, the second plate-shaped base material is arranged on the first plate-shaped base material, and the second concave The grooves are respectively corresponding to the first grooves, so that these first grooves and these second grooves form a plurality of closed cavities; phosphors are arranged on part or all of the inner walls of these closed cavities; discharge gas is arranged on In these airtight cavities, electrodes are respectively arranged at two ends of these airtight cavities.

The present invention further proposes a cold-cathode planar lamp structure, which is mainly composed of a wave-shaped structure, a first plate-shaped base material, a second plate-shaped base material, a phosphor, a discharge gas, and a plurality of electrodes. . Wherein, the wavy structure has a plurality of crests and troughs; the first plate-shaped base material is arranged on these troughs, so that a plurality of first airtight cavities are formed between the wave-shaped structure and the first plate-shaped base material; Two plate-shaped substrates are arranged on these crests, so that a plurality of second closed cavities are formed between the wave-shaped structure and the second plate-shaped substrate; phosphors are arranged in the first closed cavities and the second cavities On part of or all of the inner walls; the discharge gas is arranged in the first sealed cavities and the second cavities; the electrodes are respectively arranged at both ends of the first sealed cavities and the second cavities.

In a preferred embodiment of the invention, the material of the above-mentioned first plate substrate, the second plate substrate and the corrugated structure is, for example, glass; the discharge gas is, for example, an inert gas (such as: xenon gas, neon gas or argon); and the electrode is, for example, a metal electrode (such as: nickel electrode, silver electrode, copper electrode, molybdenum electrode or niobium electrode). In addition, an impedance device can be arranged on the electrode, such as a resistor, a capacitor or an inductor.

In a preferred embodiment of the invention, the above-mentioned first groove and second groove are, for example, rectangular or arc-shaped grooves, and the extension direction of the first groove and the second groove can be parallel to the first plate-shaped One edge of the substrate, or the extending direction of the first groove and the second groove may form an angle with one edge of the first plate-shaped substrate.

In addition, one to several connecting grooves can be arranged between the first groove and the first groove, so that each first groove communicates with each other. Similarly, one to several connecting grooves can also be arranged between the second groove and the second groove. Several connecting grooves are used to make each second groove communicate with each other. In addition, if the cold-cathode planar lamp is in the form of a corrugated structure sandwiched between two plate-shaped substrates, one to several communicating grooves can also be arranged on the corrugated structure, so that the corrugated structure and the first and second Each airtight cavity between the two plate-shaped substrates communicates. The width of the communication groove is, for example, 0.1 mm˜10 mm, and the depth is, for example, 0.1 mm˜5 mm.

Through the configuration of the connecting groove, the air inside the cold cathode flat lamp can be exhausted at one time when the cold cathode flat lamp is evacuated, and the discharge gas can be injected into the cold cathode flat lamp at one time, making the process more efficient. simple.

In a preferred embodiment of the present invention, the bottom surface of the above-mentioned first plate-shaped substrate can be designed as a reflective surface, and the bottom surface of the second plate-shaped substrate can be designed as a diffusing surface. To improve the luminous efficiency of the cold cathode flat lamp.

The present invention mainly lies in that a plurality of grooves are arranged on the plate-shaped base material, so that the surface of the first plate-shaped base material can support the second plate-shaped base material, or sandwich the first plate-shaped base material and the second plate-shaped base material A wavy structure, and the wavy structure supports the first plate-shaped base material and the second plate-shaped base material, so that the cold-cathode flat lamp can be further thinned, and the structural strength of the cold-cathode flat lamp can be improved, and then Prevent the cold cathode flat lamp from being damaged by improper external force. In addition, due to the design of the above-mentioned groove or wave-like structure, the surface of the plate-shaped substrate can be used as a supporting surface, so the present invention does not need to configure components such as side strips and spacers, and its cost can be further reduced. Easier.

In order to make the above and other objects, features, and advantages of the present invention more comprehensible, a preferred embodiment will be described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a schematic top view of an existing cold-cathode planar lamp;

Fig. 2 is a sectional view of the section line A-A of Fig. 1;

Fig. 3 is a schematic top view of a cold-cathode planar lamp according to a first preferred embodiment of the present invention;

Fig. 4 is the sectional view of the section line B-B of Fig. 3;

Fig. 5 is a cross-sectional view of a cold-cathode planar lamp according to a second preferred embodiment of the present invention;

Fig. 6 is a schematic top view of a cold-cathode planar lamp according to a third preferred embodiment of the present invention;

Fig. 7 is a schematic top view of a cold-cathode planar lamp according to a fourth preferred embodiment of the present invention;

FIG. 8 is a cross-sectional view taken along line C-C in FIG. 7 .

Detailed ways

FIG. 3 is a schematic top view of a cold-cathode planar lamp according to a first preferred embodiment of the present invention, and FIG. 4 is a cross-sectional view seen from the section line B-B in FIG. 3 . Please refer to Fig. 3 and Fig. 4 together, the cold cathode planar lamp 200 of the present embodiment is mainly made of a first plate base material 210, a second plate base material 220, a phosphor 230, a discharge gas 240 and a plurality of composed of electrodes 250. Wherein, the first plate base material 210 has a plurality of rectangular first grooves 212, and the second plate base material 220 is disposed on the first plate base material 210, so that these first grooves 212 form a There are a plurality of sealed cavities 214 , and the above-mentioned first plate base material 210 and second plate base material 220 are made of glass or other transparent materials, for example.

Please continue to refer to FIG. 3 and FIG. 4, the phosphor 230 is arranged on the inner wall of the airtight cavity 214, and can be arranged on the entire inner wall of the airtight cavity 214 (as shown in this figure), or can be selectively arranged in the airtight cavity Part of the inner wall of the body 214 (not shown); the discharge gas 240 is injected into the airtight cavity 214, and the discharge gas 240 is, for example, inert gases such as xenon gas (Xe), neon gas (Ne), argon gas (Ar), and The electrodes 250 are respectively disposed at both ends of the airtight cavity 214 and are electrically connected to a power source (not shown). The electrodes 250 are metal electrodes such as nickel electrodes, silver electrodes, copper electrodes, molybdenum electrodes, or niobium electrodes.

As mentioned above, during the lighting process of the cold cathode flat lamp 200, it is mainly driven by the electrode 250, so that the electrode 250 emits electrons in the closed cavity 214 and collides with the discharge gas 240, and ionizes the discharge gas 240, Excited to form plasma. Afterwards, the excited atoms in the plasma will return to the ground state by emitting ultraviolet rays, and the emitted ultraviolet rays will further excite the phosphor 230 on the inner wall of the sealed cavity 214 to generate visible light.

In addition, since the first plate-shaped substrate 210 and the second plate-shaped substrate 220 are made of glass or other transparent materials, the visible light generated in each first groove 212 can be transmitted through the first plate-shaped substrate. The material 210 and the second plate-shaped base material 220 are conducted, and penetrate the first plate-shaped base material 210 and the second plate-shaped base material 220 to emit a surface light source with good uniformity. In addition, the extending direction of the first groove 212 can be parallel to one of the edges of the first plate-shaped substrate 210, or the extending direction of the first groove 212 can also be sandwiched between one of the edges of the first plate-shaped substrate 210. an angle.

Therefore, it can be seen from the above that the form of the first groove 212 of the present invention does not need to be limited, and it can be a straight groove, a horizontal groove or an oblique groove. The aforementioned electrode 250 may further be provided with an impedance device 260 , such as a resistor, capacitor or inductor, to adjust the impedance of the electrode 250 .

It is worth noting that, since a plurality of first grooves 212 are formed on the first plate-shaped base material 210, the second plate-shaped base material 220 can be configured on the second plate-shaped base material 220 by using the surface of the first plate-shaped base material 210 as a supporting surface. On a plate-shaped base material 210, the structural strength of the central area of the cold cathode flat lamp 200 can be enhanced in this way, so as to prevent the cold cathode flat lamp from being damaged due to improper external force, so that there is no need to increase the thickness of the plate-shaped base material or configure additional spacers , so the cost can be further reduced.

In addition, the formation of the first groove 212 only requires a little design on the mold, and it can be integrally formed with the plate-shaped substrate while making the plate-shaped substrate, and the space of the first groove 212 itself can be filled with discharge gas. 240, so there is no need to construct a discharge gas cavity between two plate-shaped substrates with side strips like the cold cathode flat lamps that have been used, so the manufacturing process can be simpler.

As shown in Figure 3, one or more communicating grooves 216 (only one of them is shown in the figure) can be arranged between the first groove 212 and the first groove 212, so that the first groove 212 and the first groove The grooves 212 may communicate with each other, and the width of the communication groove 216 is, for example, 0.1 mm˜10 mm, and the depth is, for example, 0.1 mm˜5 mm. In addition, the communication groove 216 is not limited to be disposed in the central area of the cold cathode flat lamp 200 as shown in FIG. 3 . In other words, the communication groove 216 can be disposed at any suitable position between the first groove 212 and the first groove 212 . Through the design of the connecting groove 216, the cold cathode 200 of the planar lamp can exhaust the air inside the cold cathode planar lamp 200 at one time, and inject the discharge gas 240 into the cold cathode planar lamp 200 at one time when the cold cathode 200 is vacuumized. , which will make the manufacturing process easier.

FIG. 5 is a cross-sectional view of a cold-cathode planar lamp according to a second preferred embodiment of the present invention. Please refer to Fig. 5, the structure of this embodiment is roughly the same as that of the cold cathode flat lamp described in the first preferred embodiment, and the similarities will not be repeated, but the difference lies in that the second plate-shaped substrate 220 is equipped with multiple The second grooves 222 are rectangular, and these second grooves 222 correspond to the first grooves 212 on the first plate substrate 210 to form a plurality of closed cavities 218 . Phosphor 230 is disposed on all inner walls of the sealed cavity 218 , of course, can also be disposed on a part of the inner walls, and the discharge gas 240 is injected into the aforementioned sealed cavity 218 .

It should be noted that, since the first plate-shaped base material 210 and the second plate-shaped base material 220 are provided with corresponding first grooves 212 and second grooves 222, under the condition of the same confined space, The thickness of the whole cold cathode flat lamp can be further reduced.

FIG. 6 is a schematic top view of a cold-cathode planar lamp according to a third preferred embodiment of the present invention. The structure of this embodiment is substantially the same as that of the cold cathode flat lamp described in the first preferred embodiment, and the similarities will not be repeated, but the difference lies in the first groove 212 provided on the first plate-shaped base material 210 Changing from a rectangular shape to an arc shape, and the contact surface on the first plate-shaped base material 210 is changed from a plane contact type to an arc surface contact type, so that the first plate-shaped base material 210 is roughly in the shape of A wavy shape, which is designed to be arc-shaped by designing the contact surface on the first plate-shaped base material 210, so that the first plate-shaped base material 210 has an effect equivalent to a lens (lens), and can The visible light generated by the fluorescent body 230 is concentrated and projected towards the direction of the second plate substrate 220 .

In addition, the bottom surface of the first plate-shaped substrate 210 can be further designed as a reflective surface 270, for example coated with a layer of reflective material, and the bottom surface of the second plate-shaped substrate 220 can be further designed as a diffusing surface 280, for example with The surface with multiple V-shaped notches or multiple concave points can further improve the luminous efficiency of the cold cathode flat lamp 200 through the design of the reflective surface 270 and the diffusion surface 280 .

Based on the above, since the contact surface on the first plate-shaped substrate 210 shortens its width into an arc shape, the volume of the sealed cavity 214 can be further increased, and the aforementioned steps of vacuuming and injecting discharge gas can be further improved. s efficiency.

FIG. 7 is a schematic top view of a cold-cathode planar lamp according to a fourth preferred embodiment of the present invention, and FIG. 8 is a cross-sectional view seen along line C-C of FIG. 7 . Please refer to FIG. 7 and FIG. 8 together. The cold cathode flat lamp 300 of this embodiment is mainly composed of a corrugated structure 310, a first plate-shaped base material 320, a second plate-shaped base material 330, and a phosphor 340. , a discharge gas 350 and a plurality of electrodes 360 . Wherein, the wavy structure 310 has a plurality of crests 312 and troughs 314 . The first plate-shaped base material 320 is disposed on the troughs 314 , so that a plurality of first closed cavities 316 are formed between the wave-shaped structure 310 and the first plate-shaped base material 320 . The second plate-shaped base material 330 is disposed on the crests 312 , so that a plurality of second closed cavities 318 are formed between the wave-shaped structure 310 and the second plate-shaped base material 320 .

The phosphor 340 is disposed on all or part of the inner walls of the first airtight cavity 316 and the second cavity 318 . The discharge gas 350 is, for example, an inert gas such as xenon gas (Xe), neon gas (Ne), argon gas (Ar), and is injected into the first sealed cavities 316 and the second sealed cavities 318 . The electrodes 360 are, for example, metal electrodes such as nickel electrodes, silver electrodes, copper electrodes, molybdenum electrodes or niobium electrodes, which are respectively arranged at both ends of the first airtight chambers 316 and the second airtight chambers 318, and connected to a power supply ( not shown) electrical connections. Of course, an impedance device 370 such as a resistor, capacitor or inductor can also be disposed on the electrode 360 to adjust the impedance of the electrode 360 .

As mentioned above, the lighting process of the cold cathode flat lamp 300 is the same as that of the previous embodiments, mainly driven by the electrode 360, so that the electrode 360 emits electrons inside the first airtight cavity 316 and the second airtight cavity 318 It collides with the discharge gas 350 and ionizes and excites the discharge gas 350 to form plasma. Afterwards, the excited atoms in the plasma will return to the ground state by emitting ultraviolet rays, and the emitted ultraviolet rays will further excite the phosphors 340 on the inner walls of the first closed cavity 316 and the second closed cavity 318, to produce visible light.

In addition, the corrugated structure 310 can also be configured with one to several communicating grooves 380 as in the foregoing embodiments, so that the corrugated structure 310 and the first plate-shaped base material 320 and the second plate-shaped base material 330 Each of the closed cavities communicates. In addition, the bottom surface of the first plate-shaped base material 320 can also be designed as a reflective surface 322 as in the aforementioned embodiments, and the bottom surface of the second plate-shaped base material 330 can also be designed as a diffuser surface as in the aforementioned embodiments. The surface 332 also achieves the effect of improving the luminous efficiency of the cold-cathode flat lamp through the above-mentioned design of the reflecting surface 322 and the diffusing surface 332 .

Based on the above, in this embodiment, a wave-shaped structure is sandwiched between the first plate-shaped base material and the second plate-shaped base material, and the wave-shaped structure supports the first plate-shaped base material and the second plate-shaped base material. The base material can also achieve the purpose of improving the structural strength of the cold cathode flat lamp.

In summary, the cold cathode flat lamp structure of the present invention has at least the following advantages:

1. With the groove designed on the plate-shaped substrate or the wave-shaped structure sandwiched between the two plate-shaped substrates, the surface of the plate-shaped substrate can be supported, so that the structure of the central area of the cold cathode flat lamp The strength can be enhanced to prevent the cold cathode flat lamp from being damaged due to improper external force.

2. The surface of the plate-shaped substrate can be supported by the groove designed on the plate-shaped substrate or the wave-shaped structure sandwiched between the two plate-shaped substrates, so there is no need to configure additional side strips and gaps Items and other components, the cost can be reduced.

3. Through the grooves on the plate base material or the connecting grooves arranged on the corrugated structure, the cold cathode flat lamp can be vacuumed at one time inside the cold cathode flat lamp. After the air is exhausted, the discharge gas can be injected into the cold cathode flat lamp at one time, which will make the manufacturing process easier and effectively shorten the manufacturing time.

4. By shortening the distance between the contact surfaces of the plate-shaped substrate, the volume of the sealed cavity is increased, thereby improving the efficiency of steps such as vacuuming and injecting discharge gas.

5. The luminous efficiency of the cold-cathode planar lamp is improved by making a reflective surface on the bottom surface of the upper plate-shaped substrate and making a diffusion surface on the bottom surface of the lower plate-shaped substrate.

Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention.

Claims (40)

1. a cold-cathode plane modulated structure is characterized in that, comprising:

One first plate-like substrate has plurality of grooves;

One second plate-like substrate is configured on this first plate-like substrate, so that those grooves become a plurality of airtight cavitys;

One fluorophor is configured in the part inwall of those airtight cavitys or whole inwalls;

One discharge gas is configured in those airtight cavitys; And

Plural number is configured in the two ends of those airtight cavitys respectively to electrode.

2. cold-cathode plane modulated structure as claimed in claim 1 is characterized in that, the material of described this first plate-like substrate and this second plate-like substrate comprises glass.

3. cold-cathode plane modulated structure as claimed in claim 1 is characterized in that, described this discharge gas comprises an inert gas.

4. cold-cathode plane modulated structure as claimed in claim 3 is characterized in that, described this inert gas comprise xenon, neon and argon gas one of them.

5. cold-cathode plane modulated structure as claimed in claim 1 is characterized in that, described those electrodes are metal electrode.

6. cold-cathode plane modulated structure as claimed in claim 5 is characterized in that, described this metal electrode comprise nickel electrode, silver electrode, copper electrode, molybdenum electrode and niobium electrode one of them.

7. cold-cathode plane modulated structure as claimed in claim 1 is characterized in that, the bearing of trend of described those grooves is the wherein edges that are parallel to this first plate-like substrate.

8. cold-cathode plane modulated structure as claimed in claim 1 is characterized in that, a wherein edge clamping one angle of the bearing of trend of described those grooves and this first plate-like substrate.

9. cold-cathode plane modulated structure as claimed in claim 1 is characterized in that, described those grooves be rectangle groove and arcuate furrow one of them.

10. cold-cathode plane modulated structure as claimed in claim 1 is characterized in that, more comprises at least one communication groove, and this communication groove is configured between those grooves, so that those grooves are interconnected.

11. cold-cathode plane modulated structure as claimed in claim 10 is characterized in that, the width of described this communication groove is that the 0.1mm～10mm and the degree of depth are 0.1mm～5mm.

12. cold-cathode plane modulated structure as claimed in claim 1 is characterized in that, the bottom surface of described this first plate-like substrate is a reflecting surface.

13. cold-cathode plane modulated structure as claimed in claim 1 is characterized in that, the bottom surface of this second plate-like substrate is a diffusing surface.

14. cold-cathode plane modulated structure as claimed in claim 1 is characterized in that, more comprises an impedance means, this impedance means is configured on those electrodes, and this impedance means be resistance, electric capacity and inductance one of them.

15. a cold-cathode plane modulated structure is characterized in that, comprising:

One first plate-like substrate has a plurality of first grooves;

One second plate-like substrate, have a plurality of second grooves, this second plate-like substrate is configured on this first plate-like substrate, and wherein those second grooves are to correspond respectively to those first grooves, so that those first grooves and those second grooves constitute a plurality of airtight cavitys;

One fluorophor is configured in the part inwall of those airtight cavitys or whole inwalls;

One discharge gas is configured in those airtight cavitys; And

Plural number is configured in the two ends of those airtight cavitys respectively to electrode.

16. cold-cathode plane modulated structure as claimed in claim 15 is characterized in that, the material of described this first plate-like substrate and this second plate-like substrate comprises glass.

17. cold-cathode plane modulated structure as claimed in claim 15 is characterized in that, described this discharge gas comprises an inert gas.

18. cold-cathode plane modulated structure as claimed in claim 17 is characterized in that, described this inert gas comprise xenon, neon and argon gas one of them.

19. cold-cathode plane modulated structure as claimed in claim 15 is characterized in that, described those electrodes are metal electrode.

20. cold-cathode plane modulated structure as claimed in claim 19 is characterized in that, described this metal electrode comprise nickel electrode, silver electrode, copper electrode, molybdenum electrode and niobium electrode one of them.

21. cold-cathode plane modulated structure as claimed in claim 15 is characterized in that, the bearing of trend of described those first grooves and those second grooves is the wherein edges that are parallel to this first plate-like substrate.

22. cold-cathode plane modulated structure as claimed in claim 15 is characterized in that, a wherein edge clamping one angle of the bearing of trend of described those grooves and those second grooves and this first plate-like substrate.

23. cold-cathode plane modulated structure as claimed in claim 15 is characterized in that, more comprises at least one communication groove, this communication groove is configured between those first grooves, so that those first grooves are interconnected.

24. cold-cathode plane modulated structure as claimed in claim 15 is characterized in that, described those first grooves and those second grooves be rectangle groove and arcuate furrow one of them.

25. cold-cathode plane modulated structure as claimed in claim 15 is characterized in that, more comprises at least one communication groove, this communication groove is configured between those second grooves, so that those second grooves are interconnected.

26. cold-cathode plane modulated structure as claimed in claim 25 is characterized in that, the width of described this communication groove is that the 0.1mm～10mm and the degree of depth are 0.1mm～5mm.

27. cold-cathode plane modulated structure as claimed in claim 15 is characterized in that, the bottom surface of described this first plate-like substrate is a reflecting surface.

28. cold-cathode plane modulated structure as claimed in claim 15 is characterized in that, the bottom surface of described this second plate-like substrate is a diffusing surface.

29. cold-cathode plane modulated structure as claimed in claim 15 is characterized in that, more comprises an impedance means, this impedance means is configured on those electrodes, and this impedance means be resistance, electric capacity and inductance one of them.

30. a cold-cathode plane modulated structure is characterized in that, comprising:

One wavy structure has a plurality of crests and trough;

One first plate-like substrate is configured on those troughs, so that become a plurality of first airtight cavity between this wavy structure and this first plate-like substrate;

One second plate-like substrate is configured on those crests, so that become a plurality of second airtight cavity between those wavy structures and this second plate-like substrate;

One fluorophor is configured in the part inwall of those first airtight cavitys and those second airtight cavitys or whole inwalls;

One discharge gas is configured in those first airtight cavitys and those the second airtight cavitys; And

First plural number is configured in the two ends of those first airtight cavitys respectively to electrode;

Second plural number is configured in the two ends of those second airtight cavitys respectively to electrode.

31. cold-cathode plane modulated structure as claimed in claim 30 is characterized in that, the material of described this wavy structure, this first plate-like substrate and this second plate-like substrate comprises glass.

32. cold-cathode plane modulated structure as claimed in claim 30 is characterized in that, described this discharge gas comprises an inert gas.

33. cold-cathode plane modulated structure as claimed in claim 32 is characterized in that, described this inert gas comprise xenon, neon and argon gas one of them.

34. cold-cathode plane modulated structure as claimed in claim 30 is characterized in that, described those electrodes are metal electrode.

35. cold-cathode plane modulated structure as claimed in claim 34 is characterized in that, described this metal electrode comprise nickel electrode, silver electrode, copper electrode, molybdenum electrode and niobium electrode one of them.

36. cold-cathode plane modulated structure as claimed in claim 30 is characterized in that, more comprises at least one communication groove, this communication groove is configured on this wavy structure, so that those first airtight cavitys and those second airtight cavitys are interconnected.

37. cold-cathode plane modulated structure as claimed in claim 36 is characterized in that, the width of described this communication groove is that the 0.1mm～10mm and the degree of depth are 0.1mm～5mm.

38. cold-cathode plane modulated structure as claimed in claim 30 is characterized in that, the bottom surface of described this first plate-like substrate is a reflecting surface.

39. cold-cathode plane modulated structure as claimed in claim 30 is characterized in that, the bottom surface of described this second plate-like substrate is a diffusing surface.

40. cold-cathode plane modulated structure as claimed in claim 30 is characterized in that, more comprises an impedance means, this impedance means is configured on those electrodes, and this impedance means be resistance, electric capacity and inductance one of them.

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