1320124 l7817twf.doc/g 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種平面螢光燈及一種液晶顯示裝 置，且特別是有關於一種可提供高均勻度之面光源的平面 螢光燈及一種包含前述平面螢光燈之液晶顯示裝置。 【先前技術】 隨著現代視訊技術的進步，液晶顯示裝置已被大量地 使用於手機、筆記型電腦、個人電腦及個人數位助理(pda) 荨消費性電子產品的顯示榮幕上。然而，由於液晶顯示裝 置之液晶顯示面板本身並不具有發光的功能，因此需要於 液晶顯示面板下方配置一背光模組以提供液晶顯示面板所 需要之光源，進而使液晶顯示面板達到顯示的功能。目前 市％上的为光模組主要以平面螢光燈（Fiat Fluorescent1320124 l7817twf.doc/g IX. Description of the Invention: [Technical Field] The present invention relates to a flat fluorescent lamp and a liquid crystal display device, and more particularly to a flat surface light source capable of providing high uniformity A fluorescent lamp and a liquid crystal display device comprising the above planar fluorescent lamp. [Prior Art] With the advancement of modern video technology, liquid crystal display devices have been widely used in display screens of mobile phones, notebook computers, personal computers, and personal digital assistants (PDAs) and consumer electronic products. However, since the liquid crystal display panel of the liquid crystal display device itself does not have the function of emitting light, it is necessary to arrange a backlight module under the liquid crystal display panel to provide a light source required for the liquid crystal display panel, thereby enabling the liquid crystal display panel to achieve the display function. At present, the optical module in the city is mainly a flat fluorescent lamp (Fiat Fluorescent).
Lamp, FFL)、冷陰極螢光燈(c〇ld Cathode Fluorescent Lamp， CCFL)及發光二極體(Light Emitting Diode)為主，其中平面 螢光燈又以售價低廉、佔用空間小等優點而被廣泛使用於 液晶顯示裝置中。 圖1是習知之一種平面螢光燈的局部側面剖視圖。請 參考圖1，習知之平面螢光燈100是由一上基板n〇及一 下基板120對組而成，其中上基板11〇與下基板12〇之間 形成一放電空間，且放電空間中會充入放電氣體丨3〇。下 基板120上形成有一電極組140，並電極組14〇上覆蓋有 一介電層150以保護電極組140。此外，一螢光材料16〇 塗佈於上基板1與下基板120的内側壁上及介電層15〇 1320124 l7817twf.doc/g 的外壁上。 平面螢光燈100的驅動方式是先施加驅動電壓給電極 組140以產生放電電場E，而放電電場E會將放電氣體13〇 游離成電漿。之後，電漿中各離子内處於激態的電子在回 到基態的同時會發出紫外線，而當電漿所發出的紫外線照 射到螢光材料160時，會激發螢光材料160發光。 目前平面螢光燈的驅動方式大部分是採用可控制的 局部放電方式’例如在電極上設計多數凸點，以使電極在 這些凸點處產生尖端放電。然而，此種局部放電的方式卻 容易造成平面螢光燈在局部產生較強的光線強度，因而出 現規則性的壳暗父錯紋路，進而影響平面螢光燈整體的發 光均勻度。 【發明内容】 本發明之目的是提供—種平面螢光燈，其具有較佳的 發光均勻度。 .本發明之另一目的是提供一種液晶顯示裝置，其使用 鲁 #光均勻度較麵平面榮光燈，因此可提高顯示品質。 本發明之又一目的是提供一種平面螢光燈的驅動方 • 丨，以使平面料燈具有較㈣發光均勻度。 這述或是其他目的，本發明提出-種平面營光 燈、、包含-腔體、一放電氣體、多數第一電極、多數第 一電介電層以及—鸯練料。其中，放電氣體配置 蓋這些第-Μ -極配置於腔體底部。介電層覆 一 /、弟—電極，而螢光材料配置於腔體内。此外， 7 !7817twf.doc/g 1320124 第—側上設置有多數第-凸點，而各 ΐ-電置有多料二凸點。在同- 置’且第-凸點與其相對之第一電極:第4=:設 電極之間會形成—第二發光與第二 區為擇其-之互不重疊及部分重/ Q㉔弟二發光 -電極與第上兩亡述之平面螢光燈的同-第 鄰兩第二凸點之間:距::：版 -電施::’ί述:平面螢光燈的同-第 _目鄰兩第-凸點=離r:第， 第之—實施例中，上述之平面榮光燈更包含-mv吻)與—第二反向器。第—反向器具有電 接第二接點，其中第-接點是』 &一 。。而弟一接點是電性連接至第二電極。此 點：ί t ?向器具有電性相反的—第三接點與—第四接 電性連二接電性連接至第二電極，而第四接點是 黛一 ΐί發明之—實_巾，上述之平面螢統更包含-點甘！其具有電性相反的一第一接點與一第二接 ;電::接連接至第一電極，而第二接點 1320124 17817twf.doc/g 在本發明之一實施例中，上述之腔體包含一第一基 板、一第二基板以及一邊框。其中，第二基板與第一基板 相對，而第一與第二電極是配置於第一基板上。邊框則是 配置於第一基板與第二基板之間。 在本發明之一實施例中，上述之腔體更包含多數間隔 物，其配置於部分第一及第二電極與第二基板之間。 在本發明之一實施例中，上述之平面螢光燈更包含一 擴散板’配置於第二基板上。 本發明另提出-種液晶顯示裝置，其包含一液晶顯示 面板以及上述之平面螢光燈。平面螢光燈丨配置於液晶顯 示面板旁，以提供液晶顯示面板顯示用之背光源。 本發明又提出-種平面螢光燈之驅動方法，其適於驅 動上述之平面營光燈。此平面螢絲的_紐是使平面 榮光燈的第-發光區與第二發光區交替發光，且第一發光 區與第二發統發光賴率介於10千赫(kHz)至·千赫。 在本發明之-實施例中，上述之第一發光區與第二發 光區發光的頻率介於40千赫至8〇千赫。 一在本發明之一實施例中，上述之第一發光區與第二發 光區發光的時間差介於〇 〇〇丨秒至〇 秒。 ^在本發明之平面螢光燈中，由於上述之第一發光區與 第二發光區至少部分不重疊。@此，藉由驅使平面螢光燈 之第％光區與第二發光區輪流發光可提高平面榮光燈 發光均勻度。 為讓本發明之上述和其他目的、特徵和優點能更明顯 1320124 l7817twf.doc/g 易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說 明如下。 【實施方式】 圖2是本發明一實施例之平面螢光燈的剖面圖，圖3A 是圖2之平面螢光燈的第一發光區之示意圖，而圖3B是 圖2之平面螢光燈的第二發光區之示意圖。請參照圖2、 圖3A與圖3B，本實施例之平面螢光燈200包含一腔體 210、一放電氣體220、多數第一電極230a、多數第二電極 230b、一介電層240以及一螢光材料250。其中，放電氣 體220配置於腔體210内，而第一與第二電極230a、230b 配置於腔體210底部。介電層240覆蓋第一與第二電極 230a、230b，而螢光材料250配置於腔體210内。此外， 各第一與第二電極230a、230b之第一側上設置有多數第一 凸點232 ’而各第一與第二電極230a、230b之第二側上設 置有多數第二凸點234。在同一第一電極230a與第二電極 230b中，第一凸點232與第二凸點234是交替設置，且第 一凸點232與其相對之第一電極230a與第二電極230b之 間形成一第一發光區A1，而第二凸點234與其相對之第一 電極230a與第二電極230b之間形成一第二發光區A2,且 第一發光區A1與第二發光區A2為擇其一之部分重疊及互 不重疊。 上述平面螢光燈200中，放電氣體220例如是擇其一 之氙氣(Xe)、氖氣(Ne)及氬氣(Ar)等惰性氣體，而介電層 260例如是陶瓷材料。此外，腔體210包含一第一基板212、 1320124 17817twf.doc/g 一第二基板214以及一邊框216，其中第二基板214與第 一基板212相對。第一與第二電極23〇a、23〇b是配置於第 一基板212上，而邊框210則是配置於第一基板212與第 二基板214之間。另外，腔體21〇還可包含多數間隔物 260,其配置於第一基板212與第二基板214之間，以於第 一基板212與第二基板214之間的邊框216内形成多數放 電空間。 承上述，腔體210底部（即第一基板212上)例如配置 有一反射層270，且位於第一基板212上的螢光材料25〇 覆蓋此反射層270。此反射層27〇的材質例如是二氧化鈦 (Τι〇2)或二氧化矽(Si〇2)等白色陶瓷，其是用以將螢光材料 250所發出的光反射，使得光線皆從第二基板2丨4出射。 在本實施例中，第一及第二電極23〇a、23〇b例如為 條狀電極，但不以此為限。此外，為了使第一發光區A1 與第二發光區A2互不重疊，相鄰之第一電極23〇&與第二 電極230b之間需取適當的距離，並使同一第一電極撤 與第二電極230b中相鄰兩第一凸點232之間的距離以及相 鄰兩第二凸點234之間的距離皆相同(例如皆為D)，而相 鄰之第-凸點232與第二凸點234之間的距離為相鄰兩第 =凸點232之間的距離的一半（例如皆為D/2)。如此，可使 第-發光區A1與第二發光區A2不重疊，以提高平面營光 燈200的發光均勻度。 以卜將；丨紿本貫鈀例之平面螢光燈的驅動方法， 參照圖4A與圖4B ’其中圖4A &具有一個反向器之# 1320124 17S17twf.doc/g 螢光燈的的示意圖’而圖4B是圖4A之平面螢光燈的驅動 波形圖。在本實施例中可透過電性連接至第一電極23〇a 與第二電極230b的一第一反向器280a來驅動第一電極 230a與第二電極230b，以使第一發光區A1與第二發光區 A2交替發光。更詳細地說，第一反向器280a具有電性相 ，的一第一接點281與一第二接點282，其中第一接點281 疋電性連接至第一電極230a’而第二接點282是電性連接 至第二電極230b。第一反向器280a的驅動波形如圖4B所 示，當脈衝電壓為正時，各第一凸點232與其相對的第一 電極230a與第二電極230b之間所形成的第一發光區幻 會發光’而當脈衝電壓為負時，則各第二凸點234缝相 對的第-電極230a與第二電極雇之間所形成的第4 光區A2會發光。由於正脈衝與貞脈衝是交替產生 發光區A1與第二發統A2會輪流發光。此外，正脈 ，的頻率與負__糊如是介於料魅· 較佳的是介於40千赫至80千姑 -C , pa . τ ... θ ^ 干赫，而正脈衝與負脈衝的時 間差Τ例如疋介於請丨秒至G G2秒1外， 脈衝的寬度W例如是於丨微秒 負 脈衝的振幅例如是介於⑽伏特至讎伏特。 員 由於正脈衝與負脈衝產生的頻率高於人眼 頻率，所以人眼會因為視覺”的現象， ^ 區A1與第二發光區A2是同時 X先 螢光燈200的發光均勻度較佳。二’本實施例之平面 的發光均句度較佳，可搭配透另^由!"平面螢光燈20〇 逯先率較向的擴散板（未繪 12 1320124 l7817twf.doc/g 示），配置於第二基板214上’以提高光利用率。 承上述，相較於習知平面螢光燈1〇〇，在產生相同亮 度的前提下’由於平面螢光燈200的第一發光區A1與第 一發光區A2會輪流發光，因此所需的驅動電流較低。如 此一來，可使螢光材料250受到較弱的電場撞擊，以防止 螢光材料250因電場過強而較快劣化，進而提高平面螢 燈2〇〇的使用壽命。 圖5A是具有兩個反向器之平面螢光燈的示意圖，而 圖5B是圖5A之平面螢光燈的驅動波形圖。請參照圖5a 與圖5B’本實施例之平面螢光燈的驅動方法亦可透過電性 連接至各第一電極230a與第二電極230b的一第一反向器 280a與一第二反向器280b來驅動第一電極23〇a與第二電 極230b，以使第一發光區A1與第二發光區A2交替發光^ 更詳細地說’第一反向器280a具有電性相反的一第一接點 281與一第二接點282’其中第一接點281是電性連接至第 一電極230a，而第二接點282是電性連接至第二電極 230b。此外，第二反向器280b具有電性相反的一第三接點 283與一第四接點284’其中第三接點283是電性連接至第 二電極230b，而第四接點284是電性連接至第一電極 230a。另外，第一接點281與第三接點283的電性例如是 相同，而第二接點282與第四接點284的電性例如是相同。 承上述，第一反向器280a與第二反向器28〇b的驅動 波形如圖5B所示，第一反向器28〇a輸出的脈衝電壓為 正，其可驅動各第一凸點232與其相對的第一電極23〇& 1320124 17817tvvf.doc/g 與第二電極23%之間所形成的第_發光區A1發光而第 二反向器280b輸出的脈衝電壓為負，其可驅動各第二凸點 234 ^其相對的第一電極2術與第二電極2勤之間所形 成的第二發光區A2發光。此外，由於第-反向器280a輸 出的正脈衝與第二反向器280b輸出的負脈衝是交替產 生，因此可使第一發光區A1與第二發光區A2輪流發光。 1外’，正脈衝的頻率與負脈衝的頻率、正脈衝與負脈衝的 日守間差Τ'正脈衝與負脈衝的寬度w以及正脈衝與負脈衝 的振幅皆與前述相似，在此不再重述。 圖6是本發明一實施例之液晶顯示裝置的結構示意 圖。請參照圖6，本實施例之液晶顯示裝置3〇〇包含一液 晶顯不面板310上述之平面螢光燈2〇〇(如圖2所示）。其 中’平面螢光燈200是配置於液晶顯示面板31〇旁，以提 供液晶顯示面板310顯示用之背光源。此外，液晶面板31〇 例如係由一上基板312、一下基板314以及一液晶層316 所組成》 由於本實施例之液晶顯示裝置300是採用發光均勻度 較佳的平面螢光燈2〇〇作為背光模組 ，所以在顯示時不會 出現明顯的亮區與暗區。因此，本實施例之液晶顯示裝置 300具有較佳的顯示品質。 綜上所述’本發明之平面螢光燈及液晶顯示裝置至少 具有下列優點： 1.在本發明之平面螢光燈中，由於第一發光區與第二 發光區至少部分不重疊。因此，藉由驅使平面螢光燈之第 1320124 17817twf.doc/g -發光區與第二發光區輪流發光可提高平面螢光燈的發光 均勻度。 2. 由於平面螢光燈的發光均自度較佳，因此可搭配透 光率較局的擴散板’以提高光利用率。 3. 本發明之平面螢光燈的驅動電流較低可防止螢光 --材料因電場過強而快速劣化，進而提高平面營光燈的使用 壽命。 4. 在本發明之液晶顯示裝置中，由於平面營光燈的發 鬱 光均勻度較佳，因此可提高液㈣示裝置的顯示品質。 雖然本發明已以較佳實施例揭露如上，然其並非用以 限f本發明’任何熟習此技藝者，在不脫離本發明之精神 =犯圍内，當可作些許之更動與潤飾，因此本發明之保護 範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖1是習知之一種平面螢光燈的局部側面剖視圖。 圖2是本發明一實施例之平面螢光燈的剖面圖。 • 圖3A是圖2之平面螢光燈的第一發光區之示意圖。 圖3B是圖2之平面螢光燈的第二發光區之示意圖。 . 圖4A是具有一個反向器之平面螢光燈的的示意圖。 - 圖是圖4A之平面螢光燈的驅動波形圖。 圖5A是具有一個反向器之平面螢光燈的示意圖。 圖5B是圖5 A之平面螢光燈的驅動波形圖。 圖6是本發明一實施例之液晶顯示裝置的結構示意 圖0 15 1320124 17817twf.doc/g 【主要元件符號說明】Lamp, FFL), c〇ld Cathode Fluorescent Lamp (CCFL) and Light Emitting Diode. The flat fluorescent lamp has the advantages of low price and small space. It is widely used in liquid crystal display devices. 1 is a partial side cross-sectional view of a conventional flat fluorescent lamp. Referring to FIG. 1 , a conventional planar fluorescent lamp 100 is formed by a pair of upper substrate n〇 and a lower substrate 120. A discharge space is formed between the upper substrate 11〇 and the lower substrate 12〇, and the discharge space is Charge the discharge gas 丨3〇. An electrode group 140 is formed on the lower substrate 120, and the electrode group 14 is covered with a dielectric layer 150 to protect the electrode group 140. In addition, a phosphor material 16 is coated on the inner sidewalls of the upper substrate 1 and the lower substrate 120 and on the outer walls of the dielectric layer 15 〇 1320124 l7817 twf.doc/g. The planar fluorescent lamp 100 is driven by applying a driving voltage to the electrode group 140 to generate a discharge electric field E, and the discharge electric field E is to discharge the discharge gas 13 成 into a plasma. Thereafter, the electrons in the excited state of each ion in the plasma emit ultraviolet rays while returning to the ground state, and when the ultraviolet rays emitted from the plasma are irradiated to the fluorescent material 160, the fluorescent material 160 is excited to emit light. At present, most of the driving methods of planar fluorescent lamps use a controlled partial discharge method, for example, designing a plurality of bumps on the electrodes so that the electrodes generate tip discharges at the bumps. However, such a partial discharge method is liable to cause a local light source to generate a strong light intensity locally, thereby causing a regular shell dark father's wrong grain path, thereby affecting the overall uniformity of light emission of the planar fluorescent lamp. SUMMARY OF THE INVENTION An object of the present invention is to provide a flat fluorescent lamp which has better uniformity of illumination. Another object of the present invention is to provide a liquid crystal display device which uses a Lu-light uniformity flat surface glory lamp, thereby improving display quality. It is still another object of the present invention to provide a driving method for a flat fluorescent lamp such that the flat lamp has a more uniform illumination uniformity. For other or other purposes, the present invention provides a planar camping light, a cavity containing a discharge, a plurality of first electrodes, a plurality of first dielectric layers, and a plurality of first dielectric layers. Wherein, the discharge gas arrangement cover is disposed at the bottom of the cavity. The dielectric layer covers a /, the electrode - the electrode, and the fluorescent material is disposed in the cavity. In addition, 7 !7817twf.doc/g 1320124 is provided with a plurality of first-bumps on the first side, and a plurality of bumps are arranged on each side. In the same - and the first electrode opposite to the first bump: the fourth =: set between the electrodes will be formed - the second light and the second region are selected - they do not overlap each other and part of the weight / Q24 brother two The illuminating-electrode is the same as the second and second adjacent bumps of the first two flat fluorescent lamps: Distance:::版-Electricity::' 述: The same fluorescent illuminator - _ The adjacent two first-bumps = from r: first, the first - in the embodiment, the above-mentioned planar glory lamp further includes -mv kiss) and - the second inverter. The first-reverse has an electrical second contact, wherein the first-contact is 』 & . The younger one is electrically connected to the second electrode. This point: ί t directional device has the opposite polarity - the third contact and the fourth electrical connection are electrically connected to the second electrode, and the fourth contact is the invention - the actual _ Towels, the above-mentioned flat phoenix contains more - sweet! The first contact and the second connection are opposite in electrical polarity; the electrical connection is connected to the first electrode, and the second contact 1320124 17817twf.doc/g is an embodiment of the present invention. The body comprises a first substrate, a second substrate and a frame. The second substrate is opposite to the first substrate, and the first and second electrodes are disposed on the first substrate. The frame is disposed between the first substrate and the second substrate. In an embodiment of the invention, the cavity further includes a plurality of spacers disposed between the portions of the first and second electrodes and the second substrate. In an embodiment of the invention, the planar fluorescent lamp further includes a diffusion plate disposed on the second substrate. The present invention further provides a liquid crystal display device comprising a liquid crystal display panel and the above-described planar fluorescent lamp. The flat fluorescent lamp is placed next to the liquid crystal display panel to provide a backlight for the display of the liquid crystal display panel. The present invention further provides a method of driving a planar fluorescent lamp that is adapted to drive the above-described planar camplight. The light-emitting layer of the planar illuminating light alternately emits the first illuminating region and the second illuminating region of the planar glory lamp, and the first illuminating region and the second illuminating region have a light-emitting ratio of 10 kHz to kHz. . In an embodiment of the invention, the first light-emitting region and the second light-emitting region emit light at a frequency between 40 kHz and 8 kHz. In an embodiment of the invention, the time difference between the first light-emitting area and the second light-emitting area is between 〇 〇〇丨 sec and 〇 sec. In the planar fluorescent lamp of the present invention, since the first light-emitting region and the second light-emitting region described above do not at least partially overlap. @This, the uniformity of the planar glory illumination can be improved by driving the first and second illuminating regions of the planar fluorescent lamp to emit light in turn. The above and other objects, features, and advantages of the present invention will become more apparent from the appended claims. 2 is a cross-sectional view of a flat fluorescent lamp according to an embodiment of the present invention, FIG. 3A is a schematic view of a first light-emitting area of the planar fluorescent lamp of FIG. 2, and FIG. 3B is a planar fluorescent lamp of FIG. Schematic diagram of the second illuminating zone. Referring to FIG. 2, FIG. 3A and FIG. 3B, the planar fluorescent lamp 200 of the embodiment includes a cavity 210, a discharge gas 220, a plurality of first electrodes 230a, a plurality of second electrodes 230b, a dielectric layer 240, and a Fluorescent material 250. The discharge gas 220 is disposed in the cavity 210, and the first and second electrodes 230a, 230b are disposed at the bottom of the cavity 210. The dielectric layer 240 covers the first and second electrodes 230a, 230b, and the phosphor material 250 is disposed within the cavity 210. In addition, a plurality of first bumps 232 ′ are disposed on the first sides of the first and second electrodes 230 a and 230 b , and a plurality of second bumps 234 are disposed on the second sides of the first and second electrodes 230 a and 230 b . . In the same first electrode 230a and second electrode 230b, the first bump 232 and the second bump 234 are alternately disposed, and the first bump 232 forms a gap between the first electrode 230a and the second electrode 230b opposite thereto. a first light-emitting area A1 is formed, and a second light-emitting area A2 is formed between the first electrode 230a and the second electrode 230b opposite to the second bump 234, and the first light-emitting area A1 and the second light-emitting area A2 are selected one by one. The parts overlap and do not overlap each other. In the above-described planar fluorescent lamp 200, the discharge gas 220 is, for example, an inert gas such as helium (Xe), neon (Ne) or argon (Ar), and the dielectric layer 260 is, for example, a ceramic material. In addition, the cavity 210 includes a first substrate 212, 1320124 17817 twf.doc/g a second substrate 214 and a frame 216, wherein the second substrate 214 is opposite to the first substrate 212. The first and second electrodes 23a, 23b are disposed on the first substrate 212, and the bezel 210 is disposed between the first substrate 212 and the second substrate 214. In addition, the cavity 21A may further include a plurality of spacers 260 disposed between the first substrate 212 and the second substrate 214 to form a plurality of discharge spaces in the frame 216 between the first substrate 212 and the second substrate 214. . In the above, the bottom of the cavity 210 (i.e., on the first substrate 212) is disposed, for example, with a reflective layer 270, and the phosphor material 25 on the first substrate 212 covers the reflective layer 270. The material of the reflective layer 27〇 is, for example, a white ceramic such as titanium dioxide (〇ι〇2) or cerium oxide (Si〇2), which is used to reflect the light emitted by the fluorescent material 250 so that the light is from the second substrate. 2丨4 exit. In the present embodiment, the first and second electrodes 23a, 23b are, for example, strip electrodes, but are not limited thereto. In addition, in order to prevent the first light-emitting area A1 and the second light-emitting area A2 from overlapping each other, an appropriate distance between the adjacent first electrode 23〇& and the second electrode 230b is required, and the same first electrode is removed. The distance between two adjacent first bumps 232 in the second electrode 230b and the distance between two adjacent second bumps 234 are the same (for example, all are D), and the adjacent first-bumps 232 and The distance between the two bumps 234 is half the distance between adjacent two = bumps 232 (for example, all D/2). Thus, the first light-emitting area A1 and the second light-emitting area A2 can be prevented from overlapping to improve the uniformity of light emission of the planar camper lamp 200.以 将 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; FIG. 4B is a driving waveform diagram of the planar fluorescent lamp of FIG. 4A. In the embodiment, the first electrode 230a and the second electrode 230b are driven through a first inverter 280a electrically connected to the first electrode 23A and the second electrode 230b, so that the first light-emitting area A1 and The second light-emitting area A2 alternately emits light. In more detail, the first inverter 280a has an electrical phase, a first contact 281 and a second contact 282, wherein the first contact 281 is electrically connected to the first electrode 230a' and the second The contact 282 is electrically connected to the second electrode 230b. The driving waveform of the first inverter 280a is as shown in FIG. 4B. When the pulse voltage is positive, the first light-emitting region formed between each of the first bumps 232 and the second electrode 230a and the second electrode 230b opposite thereto When the pulse voltage is negative, the fourth light region A2 formed between the first electrode 230a and the second electrode of the second bump 234 is illuminated. Since the positive pulse and the chirp pulse are alternately generated, the light-emitting area A1 and the second light-emitting area A2 will alternately emit light. In addition, the frequency of the positive pulse, and the negative __ paste is between the material charms. It is preferably between 40 kHz and 80 kPa-C, pa. τ ... θ ^ dry, and positive and negative The time difference of the pulse, for example, 疋 is from 丨 second to G G2 sec, and the width W of the pulse is, for example, the amplitude of the 丨 microsecond negative pulse, for example, between (10) volts and volts. Since the frequency generated by the positive pulse and the negative pulse is higher than the frequency of the human eye, the human eye will be better because of the visual phenomenon. ^ The area A1 and the second light-emitting area A2 are the same as the uniformity of the illumination of the X-first fluorescent lamp 200. The illumination of the plane of the second embodiment is better, and can be matched with the diffusion plate of the flat fluorescent lamp 20 〇逯 precedence (not shown 12 1320124 l7817twf.doc/g) , disposed on the second substrate 214 to improve the light utilization rate. According to the conventional planar fluorescent lamp, the first light-emitting area of the planar fluorescent lamp 200 is generated on the premise of generating the same brightness. A1 and the first light-emitting area A2 will alternately emit light, so the required driving current is low. Thus, the fluorescent material 250 can be struck by a weak electric field to prevent the fluorescent material 250 from being fast due to excessive electric field. Deterioration, thereby increasing the service life of the flat fluorescent lamp 2. Fig. 5A is a schematic view of a planar fluorescent lamp having two inverters, and Fig. 5B is a driving waveform diagram of the planar fluorescent lamp of Fig. 5A. 5a and FIG. 5B' The driving method of the planar fluorescent lamp of this embodiment may also be The first electrode 23a and the second electrode 230b are driven by a first inverter 280a and a second inverter 280b electrically connected to the first electrode 230a and the second electrode 230b to make the first light The area A1 alternates with the second light-emitting area A2. In more detail, the first inverter 280a has a first contact 281 and a second contact 282, wherein the first contact 281 is electrically Connected to the first electrode 230a, and the second contact 282 is electrically connected to the second electrode 230b. In addition, the second inverter 280b has a third contact 283 and a fourth contact 284' that are electrically opposite. The third contact 283 is electrically connected to the second electrode 230b, and the fourth contact 284 is electrically connected to the first electrode 230a. In addition, the electrical properties of the first contact 281 and the third contact 283 are, for example, The same is true, and the electrical properties of the second contact 282 and the fourth contact 284 are the same. For example, the driving waveforms of the first inverter 280a and the second inverter 28B are as shown in FIG. 5B, first. The pulse voltage outputted by the inverter 28〇a is positive, which can drive the first bumps 232 opposite to the first electrodes 23〇& 1320124 17817tvvf The first light-emitting area A1 formed between .doc/g and the second electrode 23% emits light and the pulse voltage outputted by the second inverter 280b is negative, which can drive each of the second bumps 234 ^the first of them The second light-emitting area A2 formed between the electrode 2 and the second electrode 2 is illuminated. Further, since the positive pulse outputted by the first inverter 280a and the negative pulse output by the second inverter 280b are alternately generated, The first light-emitting area A1 and the second light-emitting area A2 can be made to emit light in turn. 1 outer', the frequency of the positive pulse and the frequency of the negative pulse, the difference between the positive and negative pulses, the width of the positive pulse and the negative pulse. And the amplitudes of the positive pulse and the negative pulse are similar to the foregoing, and will not be repeated here. Fig. 6 is a view showing the configuration of a liquid crystal display device according to an embodiment of the present invention. Referring to FIG. 6, the liquid crystal display device 3 of the present embodiment includes a liquid crystal display panel 310 (shown in FIG. 2). The 'flat fluorescent lamp 200' is disposed next to the liquid crystal display panel 31 to provide a backlight for display of the liquid crystal display panel 310. In addition, the liquid crystal panel 31 is composed of, for example, an upper substrate 312, a lower substrate 314, and a liquid crystal layer 316. The liquid crystal display device 300 of the present embodiment is a planar fluorescent lamp having a uniform light emission uniformity. The backlight module, so there will be no obvious bright and dark areas when displayed. Therefore, the liquid crystal display device 300 of the present embodiment has better display quality. In summary, the flat fluorescent lamp and liquid crystal display device of the present invention have at least the following advantages: 1. In the planar fluorescent lamp of the present invention, since the first light-emitting region and the second light-emitting region do not at least partially overlap. Therefore, the illumination uniformity of the planar fluorescent lamp can be improved by driving the illumination light of the flat fluorescent lamp to be illuminated by the illumination zone and the second illumination zone. 2. Since the illuminating light of the flat fluorescent lamp is better, it can be matched with the diffusing plate with a relatively high transmittance to improve the light utilization efficiency. 3. The low-level driving current of the flat fluorescent lamp of the present invention prevents the fluorescent material from rapidly deteriorating due to an excessive electric field, thereby increasing the service life of the planar camping lamp. 4. In the liquid crystal display device of the present invention, since the flattening of the flat camping lamp is better, the display quality of the liquid (four) display device can be improved. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention to those skilled in the art, and may be modified and modified without departing from the spirit of the invention. The scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial side cross-sectional view of a conventional flat fluorescent lamp. Figure 2 is a cross-sectional view of a flat fluorescent lamp in accordance with an embodiment of the present invention. • Figure 3A is a schematic illustration of the first illumination region of the planar fluorescent lamp of Figure 2. 3B is a schematic view of a second light emitting region of the planar fluorescent lamp of FIG. 2. Figure 4A is a schematic illustration of a planar fluorescent lamp having an inverter. - The figure is a driving waveform diagram of the planar fluorescent lamp of Fig. 4A. Figure 5A is a schematic illustration of a planar fluorescent lamp having an inverter. Fig. 5B is a driving waveform diagram of the planar fluorescent lamp of Fig. 5A. Figure 6 is a schematic view showing the structure of a liquid crystal display device according to an embodiment of the present invention. Figure 0 15 1320124 17817twf.doc/g [Description of main component symbols]
100、 200 ··平面螢光燈 110 ： 上基板 120 ： 下基板 130、 220 :放電氣體 140 ： 電極組 150、 240 :介電層 160、 250 :螢光材料 210 ： 腔體 212 · 第一基板 214 ： 弟二基板 216 ： 邊框 230a :第一電極 230b :第二電極 232 ： 第一凸點 234 ： 第二凸點 260 ： 間隔物 270 ： 反射層 280a :第一反向器 280b :第二反向器 281 ： 第一接點 282 ： 第二接點 283 ： 第三接點 284 ： 第四接點 16 1320124 17817t\vf.doc/g 300 :液晶顯示裝置 310 .液晶顯不面板 312 :上基板 314 :下基板 316 :液晶層 D :距離 A1 :第一發光區 A2 :第二發光區 E ·放電電场100, 200 · planar fluorescent lamp 110 : upper substrate 120 : lower substrate 130 , 220 : discharge gas 140 : electrode group 150 , 240 : dielectric layer 160 , 250 : fluorescent material 210 : cavity 212 · first substrate 214: second substrate 216: frame 230a: first electrode 230b: second electrode 232: first bump 234: second bump 260: spacer 270: reflective layer 280a: first reverser 280b: second reverse Transmitter 281: first contact 282: second contact 283: third contact 284: fourth contact 16 1320124 17817t\vf.doc/g 300: liquid crystal display device 310. liquid crystal display panel 312: upper substrate 314: lower substrate 316: liquid crystal layer D: distance A1: first light-emitting area A2: second light-emitting area E · discharge electric field