200847224 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種螢光燈’特別關於一種平面榮光 燈。 【先前技術】 . 近年來，電視的顯示螢幕漸以液晶顯示面板（lcd panel)為主流。由於液晶顯示面板本身並不具有發光的 功能’故在液晶顯示面板下方必須設置一背光模組 • (backlightmodule)以提供光源，進而達到顯示的功能\ 市售電視之背光模組的光源係以多數的冷陰極管 (CCFL)所組成，亦有使用發光二極體（LED)作為光源 者。然而，由於CCFL或LED係為線形或點狀光源 因此都需要藉由背光模組中的擴散板，才能達到發光均 勻的效果。 由於液晶顯示面板尺寸曰漸增大，對於背光模組發 光的均句度要求亦愈來愈高。另有以電漿發光元件製成 的平面螢光燈，由於具有良好的發光效率以及均勻性， 可符合背光模組對於光均勻性的要求。 平面螢光燈是一種電漿發光元件，其主要是利用介 ，層放電原理，產生二次電子’與氣體放電腔中陰極與 陽極之間的惰性氣體產生碰#，並將氣體離子化激發以 形成電聚。之後’電㈣被激發的激態原子會以放射紫 外光的方式回到基態，而所放射之紫外光會進一步激發 平面螢光燈中的螢光體，以產生可見光。 " 200847224 第1圖表示習知平面螢光燈之結構的剖面圖。該平 面螢光燈主要包括一上基板u、一下基板12及二螢光 層13、14。上基板n與下基板12係相對而設，螢光層 13、14分別覆蓋於上基板u、下基板12上。且螢光^ 13、14之間係形成一氣體放電腔15，氣體放電腔内^ 填充一放電氣體151。 ' 平面螢光燈更包含至少一電極對。電極對係由一第 一電極16及一第二電極17所構成，第一電極16及第 一電極17係配置在下基板12上。一介電層18覆蓋第 一及第二電極，作為保護使得第一及第二電極ΐ6、ΐ7 不會因離子撞擊而損壞。螢光層14係覆蓋於介電層18 上。 在平面螢光燈的點亮過程中，主要是藉由第一電極 16及第二電極π在氣體中產生電子，並將放電氣體151 離子化、激發以形成電漿。之後’電漿中被激發的激態 原子會以放射紫外光的方式回到基態，且所放射之紫夕^ 光會進一步激發螢光層13、14，以產生可見光。 在平面螢光燈中，放電氣體151經離子化所形成之 電漿區域Α1如第1圖所示之類似拱形的形狀。電漿區 域Α1與螢光層14之間存在一高度jj，這使得螢光層 14受激發的程度不佳，也因此限制了平面螢光燈的發 光效率。 因此，如何提供一種平面螢光燈，能夠提高螢光層 受激發的程度，進而提升發光效率，實為當前重要課題。 200847224 【發明内容】 有鑑於上述課題，本發明之目的為提供一種能夠提 高螢光層受激發的程度，進而提升發光效率之平面螢光 燈。 _ 緣疋’為達上述目的，依據本發明之一種平面螢光 燈包括一第一基板、至少一電極對、一第一螢光層、一 第二基板、一第二螢光層及一氣體放電腔。該電極對由 • 一第一電極及一第二電極所組成且配置於該第一基板 上。5亥弟—基板與该弟一基板相對而設。該第一及第一 螢光層係分別覆盍於该弟一及第二基板上。該氣體放電 腔形成於該第一螢光層與該第二螢光層之間且填充有 一放電氣體。該第一基板具有至少一第一突出部，該第 螢光層具有至少一弟一突出部對應於該第一突出 部。該第一及第二突出部位係於該第一電極及該第二電 極之間。 ⑩ 承上所述，本發明之一種平面螢光燈之基板具有一 第一突出部，並且由於螢光層設置於基板之上方，故營 光層具有對應於第一突出部的第二突出部，且第二突出 ^ 部係位於二電極之間。因此本發明之第二突出部可接近 放電氣體離子化所形成之電漿區域，提高榮光層受激發 之程度，以提升平面螢光燈的發光效率。 【實施方式】 200847224 種平剩圖式’說明依據本發明實施例之- 種平面螢光燈。 第目為依知本發明第一實施例之平面榮光燈的 』面圖。該平面螢光燈包括—上基板21、—下基板22 螢光層23、24。上基板21與下基板22相對而設， ，光層23、24係分別覆蓋於上基板21、下基板22上。 螢光層23、24係相對而設，且其間係形成一氣體放電 I 25、’氣體放電腔内係填充一放電氣體夏。 平面螢光燈更包含一電極對。電極對係由一第一電 極26及第一電極27所構成，且第一電極％及第二 電極27係配置在下基板22上。在本實施例中，第一電 極26及第二電極27配置於下基板22遠離螢光層之 一表面0 在本實施例中，下基板22具有至少一第一突出部 221 ’即第一突出部221為下基板22之一凸塊。第一突 出+部221之形成方式可藉由蝕刻下基板22而成，或是 藉由對下基板22添加材料而成。 由於螢光層24覆蓋於下基板22，故螢光層24具 有對應於第一突出部221的一第二突出部241。即第二 大出部241覆蓋於第一突出部221。另外，第一突出部 221及第二突出部241係位於第一電極26及第二電極 27之間。 在第一電極26及第二電極27通電後，第一電極 200847224 26及第二電極27發射電子與氣體放電腔25内部的放 電氣體251 1生碰撞，並將放電氣體251離子化、激發 以形成電漿’如第2圖所示之電漿區域A2。接著電漿 中被激發的激態原子會以放射紫外光的方式回到基 態，且所放射之紫外光會進一步激發螢光層23、24, 以產生可見光。 由於螢光層24之第二突出部241可較為接近或直 接接觸電漿區域A2,而可增加營光層24的受激發面 積，進而增進發光效率。 第二實施例 第3圖為依照本發明第二實施例之平面螢光燈的 剖面圖。該平面螢光燈與第2圖所示之平面螢光燈類 似兩者差異在於本貫施例中的第一電極26及第二電 極37配置於下基板22之相對二表面，其中第二電極 37係位於下基板22靠近螢光層24之表面。一介電層 38係覆蓋第二電極37使得第二電極37不會因離子撞 擊而損壞。 此外，下基板22具有一第一突出部22〗且螢光層 !!具有一第二突出部241，與第一實施例之第一及第二 大出部相同，因此不再贅述。 名二實施例 第4圖為依照本發明第三實施例之平面螢光燈的 剖面圖。該實施例之平面螢光燈與上述實施例大致類 似，唯一差異在於本實施例之第一電極46及第二電極 200847224 37皆配置於下基板22靠近螢光層24之一表面。一介 電層48覆蓋第一電極46及第二電極37。 本實施例之下基板22具有一第一突出部221，螢 光層24具有一第二突出部241，與上述實施例之第一 及弟^一突出部相同，不再贅述。 第四實施例 第5圖為依照本發明第四實施例之平面螢光燈的 剖面圖。該平面螢光燈與第3圖所示之平面螢光燈大致 相同，而兩者之差異在於本實施例的下基板22下方更 配置有一承載基板710,該承載基板71〇可以一黏著劑 720與下基板22貼合，以支持該平面螢光燈。 第五實施例 第6圖為依照本發明第五實施例之平面螢光燈的 剖面圖。該平面螢光燈與第2圖所示之平面螢光燈大致 類似，而兩者之差異在於本實施例之平面螢光燈更包含 一反射層69,其係配置於榮光層24及下基板以之間， 即螢光層24位於氣體放電腔25及反射層69之間。 此外，下基板62具有至少一第一突出部621。在 本實施例中’第一突出部6 21並不限於第6圖所示之態 樣，亦可如第7圖所示’下基板62可為波浪狀，其中 波岭構成第一突出部621。在本實施例中，下基板62 與第-突出部621係一體成型製成。由於螢光層24、 反射層69及下基板62係層層覆蓋，故螢光層24具有 一對應弟一突出部621之第二突出部241。 10 200847224 第六實施例 第8圖為依照本發明第六實施例之平面螢光燈的 剖面圖。該平㈣紐與第3 K所*之平面螢光燈大致 類似，而兩者之差異在於本實施例之螢光燈上基板81 具有二個第三突出部811，即第三突出部811為上基板 以之-凸塊。第三突出部811之形成方式可藉由蝕刻上 基板81而成，或是藉由對上基板81添加材料而成。螢 光$ 83具有對應於第三突出部811的第四突出部831， 且第四突出部831與下基板之電極對相對而嗖。 由於螢光層83之第四突出部831及榮光層料之第 二突出部841可較為接近或直接接觸電聚區域，而可增 加榮光層83及螢光層84的受激發面積，因此勞光層受 激發之程度大幅提高，進而增進發光效率。 1七實施例 第9圖為依照本發明第七實施例之平面榮光燈的 剖面圖。該平面螢光燈與第8圖所示之平面 類:，而兩者之差異在於本實施例之上基板Μ二有一 與螢光層94相對而設之第三突出部911，即第三突出部 911為上基板91之一凸塊。在本實施例中，第三突出部 911亚不限於第9圖所示之態樣，亦可如第1〇圖所示， ^基板W可為波浪狀，其中波峰構成第三突出部州。 在本貫施财，上基板91與第三突_ 9 ，成。f光層93具有對應於第三突出部911的^ 穴出部叫，且第四突出部931相對於第二突出部州 11 200847224 目並不特^ 基板及下基板的突出部數 增進發光效率的目的即可。欠而义化― H f本發明的實施例中，下基板22、32、62可為例 :陶究的介電材料且厚度較佳為〇3_2_:上基 91可為例如玻璃的透明材料且厚度較佳為 〇·3-5mm ;電極 76、οι n ^ 二;=紫:光照射後可見光波長之 M 又孕又仏為2·400鋒；放電氣體251係為Xe、 。广、其他惰性氣體、無汞氣體或其組合；介電層 38係由Pb〇、叫、則办、陶究材料或其組合所構成 ^厚度較佳為3G·4⑼㈣承載基板710可由玻璃或陶 瓷材料所製成，黏著劑72〇可為玻璃膠、陶瓷膠、㈣ 膠或熱固化膠’·以及反射層69係、以陶錢料或推有 1〇2 ' Al2〇3、BaS〇4等高反射率材料或其組合 璃材料所構成。 文破 在本發明中，上下基板的邊緣可彼此黏合或以邊條 黏合以組成放電空間，且上下基板間的距離較佳= 1 1 Omm。上下基板間的距離可任意地以間隔物置於^ 下基板間來維持，或以成型上板代替間隙物。 綜上所述，本發明之一種平面螢光燈之基板具有一 第一突出部，並且由於螢光層設置於基板之上方，故螢 12 200847224 :層具有對應於第-突出部的一第二突出部，且第二突 $=位於二電極之間。因此，本發明之第二突出部可 =為接近放電氣體離子化所形成之電漿區域，使得榮光 =激發之程度大幅提高’進而増進平面螢光燈的發光 以上所述僅為舉例性’而非為限制性者q壬何未脫 ，本發明之精神與料，而對其進行之等效修改或變 更，均應包含於後附之申請專利範圍中。 【圖式簡單說明】 第1圖為一種習知之平面螢光燈之剖面圖； 剖面圖； 第\ 剖面圖； 第2圖為依據本發明第一實施例之平面榮光燈的 圖為依據本發明第二實施例之平面螢光燈的 第4圖為依據本發明第三實施例之平 剖面圖； 第ί 剖面圖； 第6圖為依據本發明第五實施例之平 剖面圖； 面螢光燈的 圖為依據本發明第四實施例之平面螢光 燈的 面螢光燈的 意圖； 第7圖為本發明之平面榮光燈之下基板的變化示 第 圖為依據本發明第六實施例之平面螢光燈的 13 200847224 剖面圖； 第9圖為依據本發明第七實施例之平面螢光燈的 剖面圖；以及 第10圖本發明之平面螢光燈之上基板的變化示意 元件符號說明： 11、 21、81、91 :上基板 12、 22、62 ··下基板 13、 14、23、24、83、93 :螢光層 15、 25 :氣體放電腔 151、251 :放電氣體 16、 26、46 :第一電極 17 ' 27、37 :第二電極 18、38 :介電層 221、621 :第一突出部 241 :第二突出部 69 :反射層 710 :承載基板 720 :黏著劑 811、911 ·•第三突出部 831、931 :第四突出部 Al、A2 :電漿區域 Η :高度200847224 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a fluorescent lamp', particularly to a planar glory lamp. [Prior Art] In recent years, television display screens have gradually adopted liquid crystal display panels (lcd panels) as the mainstream. Since the liquid crystal display panel itself does not have the function of emitting light, a backlight module must be disposed under the liquid crystal display panel to provide a light source to achieve the display function. The backlight of the commercially available television backlight system is mostly The cold cathode tube (CCFL) is also composed of a light-emitting diode (LED) as a light source. However, since the CCFL or the LED is a linear or point light source, it is necessary to use the diffusion plate in the backlight module to achieve uniform illumination. As the size of the liquid crystal display panel is gradually increasing, the requirements for the uniformity of the illumination of the backlight module are also increasing. In addition, the flat fluorescent lamp made of plasma light-emitting element can meet the requirements of light uniformity of the backlight module because of its good luminous efficiency and uniformity. The flat fluorescent lamp is a plasma light-emitting element, which mainly uses a dielectric discharge principle to generate a secondary electron' and an inert gas between the cathode and the anode in the gas discharge chamber to generate a collision #, and ionize the gas to excite it. Forming electropolymerization. The excited (atomic) excited atoms then return to the ground state in the form of radiated ultraviolet light, and the emitted ultraviolet light further excites the phosphor in the planar fluorescent lamp to produce visible light. " 200847224 Fig. 1 is a cross-sectional view showing the structure of a conventional flat fluorescent lamp. The flat fluorescent lamp mainly comprises an upper substrate u, a lower substrate 12 and two phosphor layers 13, 14. The upper substrate n is opposed to the lower substrate 12, and the phosphor layers 13 and 14 are covered on the upper substrate u and the lower substrate 12, respectively. A gas discharge chamber 15 is formed between the phosphors 13 and 14, and a discharge gas 151 is filled in the gas discharge chamber. The flat fluorescent lamp further contains at least one electrode pair. The electrode pair is composed of a first electrode 16 and a second electrode 17, and the first electrode 16 and the first electrode 17 are disposed on the lower substrate 12. A dielectric layer 18 covers the first and second electrodes as protection so that the first and second electrodes ΐ6, ΐ7 are not damaged by ion impact. The phosphor layer 14 is overlying the dielectric layer 18. In the lighting process of the flat fluorescent lamp, electrons are mainly generated in the gas by the first electrode 16 and the second electrode π, and the discharge gas 151 is ionized and excited to form a plasma. Thereafter, the excited excited atoms in the plasma return to the ground state by emitting ultraviolet light, and the emitted violet light further excites the phosphor layers 13, 14 to generate visible light. In the flat fluorescent lamp, the plasma region 形成1 formed by ionization of the discharge gas 151 has a shape resembling an arch as shown in Fig. 1. There is a height jj between the plasma region Α1 and the phosphor layer 14, which causes the phosphor layer 14 to be excited to a lesser extent, thus limiting the light-emitting efficiency of the planar fluorescent lamp. Therefore, how to provide a flat fluorescent lamp can improve the degree of excitation of the fluorescent layer and further improve the luminous efficiency, which is an important issue at present. SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a planar fluorescent lamp which can improve the degree of excitation of a phosphor layer and further improve luminous efficiency. In order to achieve the above object, a flat fluorescent lamp according to the present invention comprises a first substrate, at least one electrode pair, a first phosphor layer, a second substrate, a second phosphor layer and a gas. Discharge chamber. The electrode pair is composed of a first electrode and a second electrode and is disposed on the first substrate. 5 Haidi-substrate is arranged opposite to the substrate of the younger brother. The first and first phosphor layers are respectively applied to the first and second substrates. The gas discharge chamber is formed between the first phosphor layer and the second phosphor layer and is filled with a discharge gas. The first substrate has at least one first protrusion, and the first phosphor layer has at least one of the protrusions corresponding to the first protrusion. The first and second protruding portions are between the first electrode and the second electrode. According to the above description, a substrate of a flat fluorescent lamp of the present invention has a first protruding portion, and since the fluorescent layer is disposed above the substrate, the camping layer has a second protruding portion corresponding to the first protruding portion. And the second protruding portion is located between the two electrodes. Therefore, the second protruding portion of the present invention can approach the plasma region formed by ionization of the discharge gas, and the degree of excitation of the glory layer is increased to improve the luminous efficiency of the planar fluorescent lamp. [Embodiment] 200847224 kind of flat pattern 'Describes a flat fluorescent lamp according to an embodiment of the present invention. The first item is a plan view of a planar glare lamp according to the first embodiment of the present invention. The planar fluorescent lamp includes an upper substrate 21, a lower substrate 22, and fluorescent layers 23, 24. The upper substrate 21 and the lower substrate 22 are opposed to each other, and the optical layers 23 and 24 are respectively covered on the upper substrate 21 and the lower substrate 22. The phosphor layers 23 and 24 are opposed to each other, and a gas discharge I 25 is formed therebetween, and a gas discharge chamber is filled with a discharge gas in summer. The flat fluorescent lamp further includes an electrode pair. The electrode pair is composed of a first electrode 26 and a first electrode 27, and the first electrode % and the second electrode 27 are disposed on the lower substrate 22. In this embodiment, the first electrode 26 and the second electrode 27 are disposed on the lower substrate 22 away from the surface 0 of the phosphor layer. In this embodiment, the lower substrate 22 has at least one first protrusion 221 ′, that is, the first protrusion. The portion 221 is a bump of the lower substrate 22. The first protrusion + portion 221 can be formed by etching the lower substrate 22 or by adding a material to the lower substrate 22. Since the phosphor layer 24 covers the lower substrate 22, the phosphor layer 24 has a second protrusion 241 corresponding to the first protrusion 221 . That is, the second large portion 241 covers the first protruding portion 221. Further, the first protruding portion 221 and the second protruding portion 241 are located between the first electrode 26 and the second electrode 27. After the first electrode 26 and the second electrode 27 are energized, the first electrode 200847224 26 and the second electrode 27 emit electrons and collide with the discharge gas 251 1 inside the gas discharge chamber 25, and ionize and excite the discharge gas 251 to form. The plasma 'is the plasma area A2 as shown in Fig. 2. The excited atoms excited in the plasma then return to the ground state by emitting ultraviolet light, and the emitted ultraviolet light further excites the phosphor layers 23, 24 to generate visible light. Since the second protrusion 241 of the phosphor layer 24 can be in close proximity or directly contact with the plasma region A2, the excitation area of the camping layer 24 can be increased, thereby improving the luminous efficiency. SECOND EMBODIMENT Fig. 3 is a cross-sectional view showing a flat fluorescent lamp in accordance with a second embodiment of the present invention. The planar fluorescent lamp is similar to the planar fluorescent lamp shown in FIG. 2 in that the first electrode 26 and the second electrode 37 in the present embodiment are disposed on opposite surfaces of the lower substrate 22, wherein the second electrode The 37 series is located on the surface of the lower substrate 22 near the phosphor layer 24. A dielectric layer 38 covers the second electrode 37 so that the second electrode 37 is not damaged by ion strikes. In addition, the lower substrate 22 has a first protruding portion 22 and the fluorescent layer has a second protruding portion 241, which is the same as the first and second large portions of the first embodiment, and therefore will not be described again. Name 2 Embodiment Fig. 4 is a cross-sectional view showing a flat fluorescent lamp in accordance with a third embodiment of the present invention. The planar fluorescent lamp of this embodiment is substantially similar to the above embodiment, except that the first electrode 46 and the second electrode 200847224 37 of the present embodiment are disposed on the surface of the lower substrate 22 near the phosphor layer 24. A dielectric layer 48 covers the first electrode 46 and the second electrode 37. The substrate 22 has a first protruding portion 221, and the fluorescent layer 24 has a second protruding portion 241, which is the same as the first and second protruding portions of the above embodiment, and will not be described again. Fourth Embodiment Fig. 5 is a cross-sectional view showing a flat fluorescent lamp in accordance with a fourth embodiment of the present invention. The planar fluorescent lamp is substantially the same as the planar fluorescent lamp shown in FIG. 3, and the difference between the two is that a carrier substrate 710 is disposed under the lower substrate 22 of the embodiment. The carrier substrate 71 can be an adhesive 720. The lower substrate 22 is attached to support the planar fluorescent lamp. Fifth Embodiment Fig. 6 is a cross-sectional view showing a flat fluorescent lamp in accordance with a fifth embodiment of the present invention. The planar fluorescent lamp is substantially similar to the planar fluorescent lamp shown in FIG. 2, and the difference between the two is that the planar fluorescent lamp of the embodiment further includes a reflective layer 69 disposed on the glory layer 24 and the lower substrate. Between the two, the phosphor layer 24 is located between the gas discharge chamber 25 and the reflective layer 69. Further, the lower substrate 62 has at least one first protrusion 621. In the present embodiment, the first protruding portion 6 21 is not limited to the one shown in FIG. 6 , and the lower substrate 62 may be wavy as shown in FIG. 7 , wherein the waveguide constitutes the first protruding portion 621 . . In the present embodiment, the lower substrate 62 and the first protruding portion 621 are integrally formed. Since the phosphor layer 24, the reflective layer 69, and the lower substrate 62 are layered, the phosphor layer 24 has a second protrusion 241 corresponding to the protrusion 621. 10 200847224 Sixth Embodiment Fig. 8 is a cross-sectional view showing a flat fluorescent lamp in accordance with a sixth embodiment of the present invention. The flat (four) button is substantially similar to the flat fluorescent lamp of the third embodiment, and the difference between the two is that the upper substrate 81 of the fluorescent lamp of the embodiment has two third protruding portions 811, that is, the third protruding portion 811 is The upper substrate is a bump. The third protruding portion 811 can be formed by etching the upper substrate 81 or by adding a material to the upper substrate 81. The fluorescent light $83 has a fourth protruding portion 831 corresponding to the third protruding portion 811, and the fourth protruding portion 831 is opposed to the electrode pair of the lower substrate. Since the fourth protruding portion 831 of the fluorescent layer 83 and the second protruding portion 841 of the glazing layer can be relatively close to or directly contact the electro-converging region, the excited area of the glory layer 83 and the fluorescent layer 84 can be increased, so The degree of excitation of the layer is greatly increased, thereby improving luminous efficiency. 17. Seventh Embodiment Fig. 9 is a cross-sectional view showing a planar glare lamp in accordance with a seventh embodiment of the present invention. The planar fluorescent lamp and the planar type shown in FIG. 8 are different in that the substrate has a third protruding portion 911 opposite to the fluorescent layer 94, that is, the third protruding portion. The portion 911 is a bump of the upper substrate 91. In the present embodiment, the third protruding portion 911 is not limited to the one shown in Fig. 9, and as shown in Fig. 1, the substrate W may be wavy, wherein the peaks constitute the third protruding state. In the past, the upper substrate 91 and the third protrusion _9 are formed. The f-light layer 93 has a hole portion corresponding to the third protrusion portion 911, and the fourth protrusion portion 931 is opposite to the second protrusion portion state 11 200847224. The number of protrusions of the substrate and the lower substrate improves the luminous efficiency. The purpose can be. In the embodiment of the present invention, the lower substrate 22, 32, 62 may be exemplified by a ceramic material and the thickness is preferably 〇3_2_: the upper substrate 91 may be a transparent material such as glass. The thickness is preferably 〇·3-5 mm; the electrode 76, οι n ^ 2; = purple: the wavelength of visible light after light irradiation is also 2,400 front and the discharge gas 251 is Xe. Wide, other inert gas, mercury-free gas or a combination thereof; the dielectric layer 38 is composed of Pb 〇, 、, 、, 陶 陶 materials or a combination thereof. The thickness is preferably 3G·4(9). (4) The carrier substrate 710 may be glass or ceramic. Made of materials, adhesive 72〇 can be glass glue, ceramic glue, (4) glue or heat curing glue '· and reflective layer 69 series, pottery material or push 1〇2 'Al2〇3, BaS〇4, etc. A high reflectivity material or a combination of glass materials. In the present invention, the edges of the upper and lower substrates may be bonded to each other or bonded by side strips to constitute a discharge space, and the distance between the upper and lower substrates is preferably = 1 1 Omm. The distance between the upper and lower substrates can be arbitrarily maintained by placing the spacers between the lower substrates, or by forming the upper plates instead of the spacers. In summary, the substrate of the flat fluorescent lamp of the present invention has a first protruding portion, and since the fluorescent layer is disposed above the substrate, the firefly 12 200847224 : the layer has a second corresponding to the first protruding portion a protrusion, and the second protrusion $= is located between the two electrodes. Therefore, the second protrusion of the present invention can be close to the plasma region formed by ionization of the discharge gas, so that the degree of glory=excitation is greatly increased, and thus the luminescence of the planar fluorescent lamp is further described above. The spirit and material of the present invention, and equivalent modifications or alterations thereof, are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a conventional planar fluorescent lamp; a cross-sectional view; a cross-sectional view; FIG. 2 is a view of a planar glare lamp according to a first embodiment of the present invention in accordance with the present invention. 4 is a plan sectional view of a third embodiment of the present invention; a cross-sectional view of a third embodiment of the present invention; and a sixth sectional view of a fifth embodiment of the present invention; The figure of the lamp is the intention of the surface fluorescent lamp of the planar fluorescent lamp according to the fourth embodiment of the present invention; FIG. 7 is a diagram showing the variation of the substrate under the planar glare lamp of the present invention. The sixth embodiment is according to the sixth embodiment of the present invention. 13 200847224 cross-sectional view of a planar fluorescent lamp; FIG. 9 is a cross-sectional view of a planar fluorescent lamp according to a seventh embodiment of the present invention; and FIG. 10 is a schematic diagram showing the variation of the substrate of the planar fluorescent lamp of the present invention. Description: 11, 21, 81, 91: upper substrate 12, 22, 62 · · lower substrate 13, 14, 23, 24, 83, 93: fluorescent layer 15, 25: gas discharge chamber 151, 251: discharge gas 16 , 26, 46: first electrode 17 ' 27, 37: second electrode 18, 38: Dielectric layers 221, 621: first protrusions 241: second protrusions 69: reflective layer 710: carrier substrate 720: adhesives 811, 911 • third protrusions 831, 931: fourth protrusions A1, A2: Plasma area Η : height