TWI222656B - Plasma panel - Google Patents

Abstract

A plasma panel includes a rear substrate, a front substrate disposed in parallel and spaced apart from the rear substrate, at least one electrode pair disposed in parallel including a positive electrode and a negative electrode, and at least one spacer disposed between the front substrate and the rear substrate. The height of each positive electrode and each negative electrode is greater than 100 mum, and the height of each spacer is greater than the height of each positive electrode and each negative electrode. Column discharge is formed between one of the lateral sides of the positive electrode and the lateral side of the negative electrode corresponding to the positive electrode.

Description

[222656

The technical field to which the invention belongs "The present invention relates to a plasma light-emitting panel, and more particularly to a plasma light-emitting panel of a column discharge. Previous technologies In recent years, various display technologies have continued to flourish and undergo continuous research and development. Later, new products such as liquid crystal displays (LCDs), plasma displays (PDPs), and organic light emitting diode displays (〇LED displays) have gradually been commercialized and applied to devices of various sizes and areas. Currently the entire display In the industry, it is necessary to develop towards high brightness and efficiency in order to produce more commercial value display products. Among the key components of the display, backlights, such as plasma, are used to supply light sources. The light-emitting panel has a significant influence on the overall light-emitting efficiency of the display. When the backlight panel itself has a good light-emitting efficiency, the brightness of the display can be improved, but & Limited, the limited light source that can be provided ^ often limits the brightness performance of display products, and affects plasma One of the main factors of the luminous efficiency of the light panel is the discharge efficiency. Elevation 1 is a cross-sectional schematic diagram of a conventional plasma light emitting panel of horizontal discharge. The conventional plasma light emitting panel i 0 includes a rear plate i. / And a front plate 1 4 arranged in parallel above the rear plate 丨 2 and a plurality of sustain electrodes

1222656 V. Description of the invention (2) A sustain electrode pair 16 is disposed on an upper surface of one of the rear plates 12 8 Each sustaining electrode pair 16 includes a positive electrode eleCtrode 22 and a negative electrode (negative electr 〇de) 24, there is an equal space between the positive and negative electrodes 2 2 and 24 of each sustaining electrode pair 16, and at the same time a positive and negative electrodes 22 and 24 of each sustaining electrode pair 16 form a Discharge gap. A dielectric layer 26 is usually provided on the upper surface 18 of the rear plate 12 and the surface of each electrode pair 6 to protect and isolate the electrodes. A fluorescent layer is coated on the lower surface 2 8 of one of the front plates 4 and the surface of the dielectric layer 26.

(f luo rescent layer) 32, and the fluorescent layer 32 is usually a phosphorous layer. A plurality of gap fillers (s p a c e r) 3 4 are further provided between the front plate 14 and the rear plate 12 to maintain a fixed distance between the front plate 14 and the rear plate 12. In addition, a discharge gas (di scharge gas) is filled between the front plate 丨 4 and the rear plate 丨 2 to generate a glow discharge (gr owdischarge) when a voltage is applied between the positive and negative electrodes 2 2 and 2 4. use. i When a voltage is applied between the positive electrode 22 and the negative electrode 24 in each electrode pair 16, an electric field will be formed between the positive electrode 22 and the negative electrode 24, triggering the imaginary The electric power lines (electric f ield 1 ines) start from the positive electrode 22 and terminate at the negative electrode 24, so that the electrons originating from the negative electrode 24 are accelerated and produce inelastic collisions with neutral atoms or molecules, causing a discharge gas Discharged by ionization, and generate ultraviolet rays through energy transfer, and then the ultraviolet rays irradiate the fluorescent light in the fluorescent layer 32.

Page 6 1222656 V. Description of the invention (3) Visible light is excited by the photocatalyst, and the material structure of the light-emitting electrode. . Due to the limitation, it is assumed that when the negative electricity stops at a negative field intensity of 10, the electricity will go ^ ^ ^ ^ ^ I. There are many factors in the ancient times that affected the rate of electric light-emitting panels 10, such as the type of electric filling, The luminescence of the phosphor is reduced by 4%, the area, and the length of each of the sustaining edges stored on the panel and the electrode. The length of each side of the electrode 22 is also affected by the so-called horizontal flat discharge on the side electrode 22. At the panel 10, the amplification rate can only be expressed to the degree. Under severe problem, the height of pole pair 16 is limited, and the discharge (1 eve) mode of starting and ending the surface is initiated and ended, the electric efficiency of the plasma light-emitting panel is not ideal to a certain level. It is known that the power lines on the positive and negative electrodes 22 and 24 in the plasma light-emitting panel 10 are not caused by the sides of the positive electrode 24, but by the upper surface of the positive electrode 24, causing a di scharge) behavior. Water is often not ideal, with associated geoelectrical efficiency. And when the plasma luminous efficiency of the plasma luminous plasma panel 10 affects the brightness of the display product, not only can fi 111 develop a new plasma luminous panel, 1 = electric mode to increase the electric field strength to improve the discharge efficiency. Feasibility becomes a very important subject. SUMMARY OF THE INVENTION In view of this, the object of the present invention is to provide a slant plasma light-emitting panel to improve the discharge of the plasma light-emitting panel:

Hi Page 7 1222656 V. Description of the invention (4) Luminous efficiency, and avoid the disadvantages of the conventional plasma light-emitting panel. In a preferred embodiment of the present invention, the plasma light emitting panel of the opposite discharge includes a rear plate, a front plate disposed parallel to the rear plate, at least one electrode pair parallel to each other, and at least one gap filler. Between the front plate and the rear plate. Each of the electrode pairs includes, toi slightly negative electrodes, the height of each of the positive electrode and each of the negative electrode, and the height of each of the gap fillers is greater than Iτ;

々 = the height. Where any-electrode pair is the same as the positive electrode electrode-to the electrode. The negative electrode corresponds to one of the positive electrodes—the sides form an H pair. It is the plasma light-emitting panel of the present invention that uses μ negative charge: the sustaining electrode pair to lengthen each: the length of the electrode electrode phase 2 side 'and cause All Weizheng use ^ ^ ^ ^ ^ m _ for one purpose; the discharge efficiency of I dual plasma light-emitting panel is also available X: can be obtained: = dimmer electro-polymer light-emitting panel in actual = = width: smart efficiency, high brightness When the display is green, it will be 〇〇π 0. Embodiments of the present invention provide a high-level lightning 4 not only the positive and negative sides of the two sides of the full opposite line, the positive, negative cover electrode and the negative electrode. In this way, the discharge efficiency of the light-emitting panel of the discharge plasma X can also be used to obtain a fairly bright electric light-emitting panel at d ?, which greatly improves the efficiency.

I electric rate of electricity

1222656 V. Description of the invention (5) FIG. 1 'This is a cross-sectional sound m Τ double q of a plasma light-emitting panel panel 100 in the first embodiment of the present invention. 1 nn total ^ person I picture. As shown in FIG. 2, the plasma light emitting device according to the present invention has two rear plates 102 and a parallel plate 102 arranged on the rear plate 102. 4 ° a plurality of sustaining electrode pairs 106 are disposed on the rear plate 102. ^ 'Each sustaining electrode pair 106 includes a positive electrode 11 2 a metal electrode γγλ positive electrode 112 and each negative electrode 114 are optional. θ々 The height of each electrode 112 is equal to the height of each negative electrode 114 ^ i μ The distance between the positive and negative electrodes 112 and 1 14 of the sustaining electrode 6 is r. A discharge gap is formed between the negative electrodes 11 2 and 1 4.

A lower surface 118 of one of the f plates 104, an upper surface 108 of the rear plate 102, and a surface of the holding electrode pair 106 are respectively coated with a fluorescent layer 22,

The fluorescent layer 1 2 2 is a phosphorous layer or other fluorescent material layer. A protective layer (not shown) is usually included between each sustaining electrode pair 106 and the fluorescent layer 122, and the protective layer covers each electrode pair 106 for protecting and protecting the electrodes. Between the front plate 104 and the rear plate 102, a plurality of gap fillers 1 24 are provided. Each gap filler 1 24 has the same height, and the height of each of the gap fillers 124 is equal to that of the rear plate 102 and The distance between the front plate 104 and the rear plate 10 is used to maintain a fixed distance between the front plate 104 and the rear plate 102. The present invention is characterized in that the height of each positive electrode 112 and each negative electrode 114 is greater than 100 micrometers (β m), and each positive electrode 112 and each negative electrode

1222656 V. Description of the invention (6) The degree of the pole 11 4 is less than the height of each gap filler 1 2 4 (in practice, each positive electrode 11 2 and each negative electrode 11 coated with a fluorescent layer 1 2 2 The structure formed by 4 is not in contact with the front plate 104 at all); therefore, the height of each electrode in the present invention is significantly increased compared to the height of each electrode in the conventional technology, but it will not affect the electro-luminescence panel 1. The light transmittance of Q. In addition, a discharge gas is filled between the front plate 104 and the rear plate 102. The discharge gas is usually inert, and the body is, for example, He (He), neon (Ar), argon (Ar), or these inert gases. This gas is used to generate a glow discharge when the voltage application port is between the positive electrode 112 and the negative electrode 114.

When a voltage is applied to each electrode pair! When the positive electrode [06] and the negative electrode 114 in 06, an electric field is formed between the positive electrode 112 and the negative electrode 114. Since each electrode in the present invention has a sufficient height, two of the positive and negative electrodes H2 and U4 The length of the side is also significantly increased compared to the conventional technology. Most of the imaginary power lines caused by 'start from the side of the positive electrode i 2 and terminate at the side of the negative electrode 114, rather than from the upper surface of the positive electrode 112. And terminating on the upper surface of the negative electrode 114 causes a so-called opposite discharge behavior. Under the opposite-type discharge chess pattern, the electric field strength between the positive electrode 112 and the negative electrode 114 can be considerably improved. %. Therefore, when a voltage is applied to the positive electrode of each electrode pair 1 06 and the negative electrode 1 to 10, the electrons originating from the negative electrode 11 4 are affected by the electric field: f plus 4, and #neutral produces inelastic collision, causing the discharge gas to be ionized to discharge, and the energy

1222656 Description of the invention (7) The ^ is transferred to generate ultraviolet rays, and then the ultraviolet rays are irradiated to the f-light precursor in the fluorescent layer 1 2 2 to excite visible light. Under the premise that the electric field strength has been significantly improved, the discharge efficiency of the plasma light-emitting panel 100 has also been improved, thereby affecting the brightness performance of display products. In this embodiment, the sustaining electrode pair 106 is disposed on the rear surface 102 of the person 1 0 8 ′, but the present invention can also be provided by placing the sustaining electrode pair 106 on the surface 118 of the lower surface of the plate 104, and then covering Protective layer (not shown), fluorescent two ^ 'to achieve the same purpose. In addition, the fluorescent layer 1 2 2 may be coated only; then, the lower surface 1 i 8 of the plate 104 or the upper surface i 0 8 of the rear plate i 02.

Referring to FIG. 2, it is a schematic cross-sectional view of a plasma light-emitting panel 200 in a second embodiment of the present invention. As shown in FIG. 3, the plasma light emitting device of the present invention, 2000 also includes a rear plate 202, and a front plate 204 disposed parallel to the rear plate 2002. A plurality of sustaining electrode pairs 206 are disposed on an upper surface 208 of one of the rear plates 202. Each of the sustaining electrode pairs 206 includes a positive electrode 212, a negative electrode 214, each positive electrode 212, and each negative electrode 214. Each is a stacked body of one layer 215 and one dielectric layer 216, and the metal layer 215 covers the upper surface and two sides of the two electrical layers 2 1 6. At the same time, each positive electrode m = height is equal to the height of each negative electrode 21 4, each sustaining electrode pair 206 = the positive and negative electrodes 21 2, 2 1 4 have an equal distance between them, and each value is 5 to 1 : A discharge gap is formed between the positive and negative electrodes 212 and 214. = K—k is that the two sides of the dielectric layer 216 shown in FIG. 3 are sloped, but in fact, the shape of the dielectric layer 21 6 is not limited to one type only.

Page 11 1222656 V. Description of the invention (8) In Figure 2, only a common situation is used to illustrate the lower surface 218 of one of the plates 204, the positive electrodes 212, and the surfaces of each ^ 4, respectively, with a fluorescent layer 222, and phosphor, phosphor, or a phosphor layer or other fluorescent material layer. Usually in ^ = 22 series

Between the 〇6 and the fluorescent layer 222, a protective layer is further included, and the electrode pairs 2 19 cover each electrode pair 20 6 ′ to protect and isolate the electrodes. 》 Between the mandrel layer 204 and the rear plate 202, a plurality of gap fillers J 224 are also provided, each = gap filler 224 has the same height, and each gap filler

The height of the object 224 is equal to the distance between the rear plate 202 and the front plate 204, so as to maintain a fixed distance between the front plate 204 and the rear plate 202.

The height of each positive electrode 2 1 2 and each negative electrode 2 1 4 is greater than 100 micrometers (// m), and the height of each positive electrode 21 2 and each negative electrode 21 4 is smaller than each gap filler 2 2 4 Height (the structure formed by the positive electrodes 21 2 and the negative electrodes 214 coated with the fluorescent layer 2 2 2 is not in contact with the front plate 2 0 4 at the time of implementation). The height of the electrode is significantly increased by two degrees compared with the electrodes in the conventional technology, but it will not affect the light transmittance of the plasma light emitting panel 200. In addition, between the front plate 2 0 4 and the rear plate 2 0 2, the filling, discharge, gas, and discharge gas are usually inert gases, such as helium, neon, argon, etc., or a mixture of these inert gases, depending on the voltage. Used to generate a glow discharge when applied between the positive electrode 2 1 2 and the negative electrode 2 1 4

Page 12122656 V. Description of the invention (9) When a voltage is applied between the positive electrode 212 and the negative charge ^ 21 4 in each electrode pair 206, a positive electrode 2 12 and a negative electrode 214 will be formed | An electric field. Although the electrode structure in this embodiment is not exactly the same as the electrode structure in the first embodiment, the length of the metal layer 215 on both sides of the positive and negative electrodes 212 and 214 can be significantly longer than that of the electrode. Knowing the characteristics of the lengths of both sides of the positive and negative electrodes 22 and 24 in the technology, the imaginary power line starting from the side of the positive electrode 21 2 and ending at the side of the negative electrode 214 is caused, causing the so-called opposite discharge behavior. In the opposite type of discharge: 2 I 2 5 ί pole 21 2 with & negative electrode 21 4 electric field strength? And improve the discharge efficiency of the electro-polymer light-emitting panel by 20 ° and the fan performance of the display products. The pole pair 2 0 6 series is arranged behind; by covering the sustaining electrode pair 2 0 6ι with a protective layer (not shown), in addition, the fluorescent layer 2 22 can also be \ the upper surface of the rear plate 2 0 2 2 0 8 . The purpose is to increase the sustaining electrode to cause the full-directional discharge behavior of each sustaining electrode pair. When using the present invention, it is possible to produce an upper surface 2 0 8 having a sustaining power 2 0 2 in this embodiment, but the present invention can also be placed on the lower surface 2 1 8 of the front plate 2 0, and then Overlay | fluorescent layer, etc. to achieve the same purpose. Coated on the lower surface 2 0 8 of the front plate 2 0 or the plasma light-emitting panel of the present invention | pair 'and the use of a raised sustaining electrode pair to improve the two sides of the positive and negative electrodes corresponding to each other Discharge effect of plasma light-emitting panel | Electro-polymer light-emitting panel is an efficient and high-brightness display product in the actual production line. 1222656 1222656 Brief description of the drawings Brief description of the drawings Figure 1 is a schematic cross-sectional view of a conventional plasma light-emitting panel of a horizontal discharge. FIG. 2 is a schematic cross-sectional view of a plasma light-emitting panel according to the first embodiment of the present invention. FIG. 3 is a schematic cross-sectional view of a plasma light-emitting panel according to a second embodiment of the present invention. Symbols of the drawings 10, 100 '200 Plasma light-emitting panels 12, 102, 202 Rear plate 14, 104, 204 Front plate 16' 106 '206 Maintenance electrode pair 18' 2 08, 208 Upper surface 22, " 2 212 positive electrode 24, 114, 214 negative electrode 215 metal layer 26 ^ 216 dielectric layer 28 ^ 118> 218 lower surface 219 protective layer 32, 122, 222 fluorescent layer 34, 124 '224 gap filler

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Claims (1)

1222656 6. Scope of patent application 1. A plasma light-emitting panel of opposite discharge, the plasma light-emitting panel includes: a rear plate; a front plate disposed in parallel on the rear plate; at least one pair of electrodes parallel to each other (Electrode pair), each electrode pair includes a positive electrode and a negative electrode, and the height of each positive electrode and each negative electrode is greater than 100 microns; and at least one gap filler is disposed on the front plate and The height of each gap filler between the rear plates is greater than the height of each of the positive electrodes and each of the negative electrodes; one side of the positive electrode of any one electrode pair corresponds to the negative electrode and corresponds to the positive electrode An opposite discharge is formed on one side of the electrode. 2. For example, the plasma light-emitting panel of the scope of patent application, wherein each of the electrode pairs is a sustain electrode pair (sus ta i n ec t rode pa i r). 3. For example, the plasma light-emitting panel of the scope of patent application, wherein each of the electrode pairs has an equal distance. 4. For the plasma light-emitting panel according to item 1 of the patent application, wherein the height of each positive electrode is equal to the height of each negative electrode. 5. The plasma light-emitting panel according to item 1 of the patent application, wherein each of the electrode pairs is disposed on a lower surface of one of the front plates. Page 16 1222656 6. Scope of patent application 6. The plasma light-emitting panel according to item 5 of the patent application scope further includes a fluorescent layer covering each electrode pair. 7. The plasma light-emitting panel according to item 6 of the patent application further includes a protective layer disposed between each of the electrode pairs and the fluorescent layer. 8. The plasma light-emitting panel according to item 1 of the application, wherein each of the electrode pairs is disposed on an upper surface of one of the rear plates. 9. The plasma light-emitting panel according to item 8 of the patent application further includes a fluorescent layer covering each of the electrode pairs. 10. The plasma light-emitting panel according to item 9 of the patent application further includes a protective layer disposed between each of the electrode pairs and the fluorescent layer. 11. The plasma light-emitting panel according to item 1 of the patent application, wherein each of the positive electrode and each of the negative electrode is a metal layer. 1 2. The plasma light-emitting panel according to item 1 of the patent application, wherein each of the positive electrode and each of the negative electrode comprises a dielectric layer and a metal layer covering a surface of the dielectric layer. 1 3. The plasma light-emitting panel according to item 12 of the patent application scope, wherein Page 17 1222656 Page 18