!273623 九、發明說明·· 【發明所屬之技術領域】 本發明係有關於一種氣體放電燈，特別是一種在平板式氣體 放電燈之背光側設計有一光反射元件，用以將從背光侧射出之光 線反射回前方的出光側，以提高平板式氣體放電燈之發光亮 反射構造。 【先前技術】 曰近由於可攜式電子產品及通訊相關產業的蓬勃發展，液 晶顯不器呈現大幅的成長。而這類產品在應用面的要求除了輕薄 =小之外，還有一個重要考量，就是低耗電。而在液晶顯示器中 最耗電力的元件即是光源部分，—般而言，背光模組(Backli咖 BLU)泛指可提供產品一個背面光源的組件，其典型的應用 就是作為液晶顯示器這類平面顯示器的光源提供者。就使用的發 ，元件種類而言’目前主要有：電激發光（Electr:n uminescence ; EL)、冷陰極螢光燈（c〇ld Ca1±〇deBACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas discharge lamp, and more particularly to a light reflecting element on a backlight side of a flat gas discharge lamp for emitting from a backlight side. The light is reflected back to the front light exiting side to enhance the light-emitting bright reflection structure of the flat-plate gas discharge lamp. [Prior Art] Due to the booming development of portable electronic products and communication-related industries, liquid crystal display devices have shown significant growth. In addition to the thin and light requirements of this type of product, there is another important consideration, that is, low power consumption. The most power-consuming component in a liquid crystal display is the light source part. In general, a backlight module (Backli coffee BLU) refers to a component that can provide a back light source of a product, and its typical application is as a plane such as a liquid crystal display. The light source provider of the display. In terms of the type of hair used and the type of components, there are currently mainly: electroluminescence (Electr: uminescence; EL), cold cathode fluorescent lamp (c〇ld Ca1±〇de)
Lamps ’ CCFL)以及發光二極體〇lght emitting di〇de，_三種 f型’依統分佈位置不關分為侧f式和直下式。因此如何提 通過率（_率）減低損耗，將對顯示器亮度的提高或消費 二力^”有著極重要的影響。其解決方鼓致可分為兩個方 善液晶面板的透絲，其二則是提高光源的亮度， 二㈣製程及材料的運用等技術，而後者則可 以透過改善光源產生元件之發光效率加以實現。 「m 1已^被I用^光光源的—種平板絲體觀燈，其構造如 要的顧，是奴促使反舰體(一般 ί 段’絲發塗佈在蚊_螢光材料發光， ί % f光板電源供應器、⑼⑽仙加 3 Ο 0號雜和盖板之間具有支件之介電質阻障式放電用之放 1273623 電燈」。 , 而&類平板式氣體放紐依其中雜的料又可分糾 極式(見「第2圖」）與内部電極式（見「第3圖」）兩種，其中= ^出光側之上層玻㈣和位於背光側的下層玻璃Η之間形—’ =閉=腔體/2 ’在此腔體12中填充有反應氣體，其中上層破瑪 的斷面形^通常會形成一種具有支樓能力的支撐部1〇1，在腔 - 12 2内層罪近出光側的表面塗佈有螢光材料13，下層玻璃a ^内壁罪，背光側的表面則塗佈有反光材料14，可反射向下行進 (即朝向背光侧行進）的光線，外部電極式的下層玻璃11的外側表 面貼附著電極15a，15b，另外還以一絕緣層16包覆著電極❿， 15b，而内電極式的差異處則是將電極i5a，15b設於密閉的 _ 體12之内部（見「第3圖」），並利用一支撐件17用以支撐上^ ，璃10和下層玻璃11。電極⑸，1¾接受背光板電源供應器2曰0Lamps ’ CCFL) and LEDs 〇lghtemitting di〇de, _ three f-types are not divided into side f-type and direct-down type. Therefore, how to reduce the loss rate (_ rate) will have a very important impact on the improvement of the brightness of the display or the consumption of the second force. The solution can be divided into two smoothing liquid crystal panels, the second It is to improve the brightness of the light source, the second (four) process and the use of materials, and the latter can be achieved by improving the luminous efficiency of the light source generating components. "m 1 has been used by I ^ light source - a flat wire view The lamp, whose structure is as desired, is the slave to promote the anti-hull (generally ί segment 'silk hair coated in the mosquito _ fluorescent material illuminate, ί % f light board power supply, (9) (10) 仙加3 Ο 0号杂和盖The 1273623 electric lamp is used for the dielectric barrier discharge between the plates. The & flat type gas discharge can be divided into the correcting type according to the miscellaneous materials (see "Fig. 2"). And the internal electrode type (see "Fig. 3"), where = ^ on the light side of the upper layer of glass (four) and the lower layer of glass on the backlight side - ' = closed = cavity / 2 ' in this cavity 12 The reaction gas is filled therein, and the cross-section shape of the upper layer is usually formed with a branch The support portion 1〇1 of the force is coated with the fluorescent material 13 on the surface on the light-emitting side of the inner layer of the cavity-122, and the inner surface of the lower glass is coated with the light-reflecting material 14, which can be reflected toward the surface. The light traveling downward (that is, traveling toward the backlight side), the outer surface of the outer electrode type lower glass 11 is adhered to the electrodes 15a, 15b, and the electrode layer 15b is covered with an insulating layer 16, and the inner electrode type is different. The electrodes i5a, 15b are disposed inside the sealed _ body 12 (see "Fig. 3"), and a support member 17 is used to support the upper glass 10 and the lower glass 11. The electrodes (5), 13⁄4 accept Backlight power supply 2曰0
Backlight Inverter)轉換後的電流，促成腔體丨2内部的反應氣 體產生放電現像放出紫外線進而激發螢光材料13發光。 公以外部電極式的平板式氣體放電燈為例，反光材料14為了不 影，放電作用’其厚度必須很薄，所以螢光材料13發出的部份光 線容易朝向背光側透出，而包覆著電極15a，15b的絕緣層16又 Z具反射光線之作用，更會使得部分光線自平板式氣體放電燈的 月ί側洩，影響出光侧實際的發光效率。此外，在平板式氣體_ 放龟燈的月面由於沒有散熱與排熱的設計，無法協助平板式 放電燈排出其熱量。 〃 【發明内容】 ^發明的主要目的在提供一種可以提高光利用率，增加出光 侧之免度的平板式氣體放電燈之反射構造。 _這種平板式氣體放電燈的基本構造包括有：一位於出光側的 鈾玻璃板，一位於背光侧的後玻璃板，其中的前玻璃板及後玻璃 板j間f有一密閉且中空的腔體，在此腔體内填充有反應氣體， 在丽玻璃板内侧朝向腔體的表面具有螢光材料，以及至少一對電 1273623 極此，兒極並且與一電源供應器（inverter)連接，·藉由電極之 間的，壓差促使反應氣體產生放電現象，進而激發螢光層發光而 經由刖方出光側的前玻璃板射出；而依據本發明的較佳實施例， 係在背，侧設置有-光反射元件，用謂财細透射出的光線" 反射回鈾方的出光側，以提尚光利用率並增加出光側的亮度。 本發明的另一目的在提供一種可以提高光利用率，並且有益 於排熱的平板式氣體放電燈之反射構造。 為達上述之目的，本發明係在背光側貼附有一種包含導熱基 材及反光材料的複合式光反射元件，除了可以將從背光側透射出 2光線反射回前方的出細，以提高光_率，還兼具散熱的功 效。 馨 /有關本發明的較佳實施似詳細技_容，兹配合圖式說明 如後。 【實施方式】 谨、生H4 係為平板式氣體放電燈的第—種實施例 構&，j係為一種外部電極式的設計，包括有： 气體放’錄平板錢體放魏之&細，而平板式 孔體出之辆、就是透過這個前玻璃板3〇射出； 後玻肖板40 ’位於平板式氣體放電燈之背光側，德破璃杯 40 ^ 此)内填充有反應赠，可能是氖氣或其他氣體的混合物(如知、 供應i(^nveiTHHb ’此對電極5Ga，5Gb並且與一電源 ，、心)連接（圖中未示），藉由電極50a 50b之+ 壓差促使反應氣體產生放電現象； ^ a’ 5〇b之間的電 而’塗佈在前賴板3G軸侧朝向賴41的表 可被狀的放電财絲喊絲線，而大部份的光魂將诱 =玻璃板嫩謝向射細透 1273623 光反射材料42，塗佈於後玻璃板40之内側朝向腔體41的、 J面’用以將朝向背光侧透射出的光線（圖中箭頭B所示）反射回 河方的出光側（圖中箭頭C所示）。 、岫述的第—種實施例，係為一種外部電極式的設計，簡言之， 就是將電極50a，5〇b設置於腔體41之外，前玻璃板3〇的斷面形 狀形成一種具有支撐能力的支撐部301，而在任兩個支撐部301之 間的斷面形_為—種卿或是弧形的設計，用以提供光均勻化 的功效’其巾電極5Qa，5Gb雜佳位置即是位於任兩個支謝 之間。 而依據本發明所揭露的平板式氣體放電燈之反射構造，係在 後玻璃板40 #外側表面，即是在電極5〇&，5此的後側設置有一 光反射兀件，其第—種較佳的實施例如「第4圖」所示，係透過 -基板60卩及在此基板6〇之表面塗佈一種具有高反光能力的薄 膜61加以實現，而且薄膜61又以介於基板6〇及電極5此，娜 之間的位「置^為佳，以便利用基板6G保護這個薄膜6卜 在「第5圖」的另一種較佳實施例中，則是在前述電極5〇比 50b的月面（朝向背光側的一面）包覆有一絕緣層敁，然後再於這 個絕緣層62的背面塗佈—種具有高反光能力的薄膜63，進而形成 一種光反射元件。 f後’睛㈣1 6圖」，係為平板式氣體放電燈的另一種較 ‘貝加例構造’其係為-種内部電極式喊計，簡言之，就是將 電極50a，50b設置於腔體41之内；在這種設計中，前玻璃板咖 與後玻璃板4Ga可以是-種平朗板狀元件，在前玻璃板3〇a與 後玻璃板4Ga t間還設有_些支撐元件7()，至於填充有反應氣體 的益P才 1且中工的腔體41 ’則是由前玻璃板3〇a、後玻璃板4〇a以 及介於其間且位於緣位置的封裝元件71所定義，其中位於前玻璃 板30a之内侧朝向腔體41的表面塗佈有榮光材料31，而在後玻璃 板40a之，側朝向腔體41的表面則塗佈有光反射材料42，而用以 促使反應氣體產生放電現像的電極5〇a，5〇b則配置在光反射材料 11 1273623 光材料31之—側的表面。而在此—崎電極式之平板' !==的”構造，其較佳的實施例，係在後㈣板 m一種包含導熱基材幻及反光材料82的複合式光反身; 3古1’,以將從背光側透射出的光線反射回前方的出光側 I先1用率，還兼具有散熱的功效。 、舱别相制，本發明所揭露之平板式鐘放電燈的反射 I以將光線反射回出光側，增加平板式氣體放電燈在出光 fif度，亦可結合導熱材料以改善其散熱能力，由於光反射元 、"又置，即使是在背光模組的背板具有開口的情形下，也不會 有漏光的問題。 上所述僅為本發明的較佳實施例而已，並非用來限定本發明 之實施範圍。即凡依本發明申請專利範圍之内容所為的等效變化 與修飾’皆應為本發明之技術範脅。 12 1273623 【圖式簡單說明】 ί ，電燈的外觀構造圖。、 第3圖，為已知内a = u式之平板式氣體放電燈的斷面構造圖。 第4圖，A太於:卩兒極式之平板式氣體放電燈的斷面構造圖。 Zl 為本發明之第一插赫杜，翩责了一種 外部電極式夕巫…種較佳實施例斷面構造圖，顯示了 圖，為本發明2體一放電燈的反射構造。 ㈣了 + 4 /月之弟一種較佳實施例斷面構造圖’ 第 外部電 第 .種 極式之平柘守产从•工丁人,主貝侧父丨興® 圖，C氣體放電燈的反射構造 口 為本發明之第 内部電極弋之平4 二種較佳實施例斷面構造_符號： ▲體放電燈的反射構造 10····· 101 ·... •••上層玻璃 π ·.... •···支撐部 12· . . _ •••下層玻璃 13 * · ·-. •···腔體 14· · . · ·· •··•螢光材料 15a，15b· · •···反光材料 16 · ·.… ••電極 17· · · · ·· • · ·絕緣層 20 ... • · · ·支撐件 • · 本發明 …· ·背光板電源供應器（Backlig# 30 · · · · · 3〇a · ·.. •···前玻璃板 301 ... / •···前玻璃板 31 · · · · * •··支撐部 • · 4〇·.... •···螢光材料 40a·… •···後玻璃板 • · •···後玻璃板 難 .雉 jnve rte f) 13 1273623 41 .........腔體 42 .........光反射材料 50a，50b.......電極 60.........基板 61，63........高反光能力的薄膜 62 · · · ......絕緣層 70 .........支撐元件 71 .........封裝元件 80 .........複合式光反射元件 81 .........導熱基材 82 .........反光材料Backlight Inverter) The converted current causes the reaction gas inside the chamber 产生2 to generate a discharge, which emits ultraviolet light to excite the fluorescent material 13 to emit light. For example, in the case of an external electrode type flat-plate gas discharge lamp, the reflective material 14 must have a thin thickness for the discharge effect, so that part of the light emitted from the fluorescent material 13 is easily emitted toward the backlight side, and is coated. The insulating layer 16 of the electrodes 15a, 15b is also used to reflect light, and some of the light is vented from the side of the flat gas discharge lamp, which affects the actual luminous efficiency of the light-emitting side. In addition, in the moon surface of the flat gas _ turtle lamp, due to the lack of heat dissipation and heat removal design, it is impossible to assist the flat discharge lamp to discharge its heat. SUMMARY OF THE INVENTION The main object of the invention is to provide a reflection structure of a flat-plate gas discharge lamp which can improve light utilization efficiency and increase the degree of relief of the light-emitting side. The basic structure of the flat type gas discharge lamp comprises: a uranium glass plate on the light exiting side, a rear glass plate on the backlight side, wherein the front glass plate and the rear glass plate j have a closed and hollow cavity The body is filled with a reactive gas, and has a fluorescent material on the inner side of the glazing plate facing the cavity, and at least one pair of electric 1273623, which is connected to a power supply, The reaction gas is caused to generate a discharge phenomenon by the pressure difference between the electrodes, thereby exciting the phosphor layer to emit light and exiting through the front glass plate on the side of the light exiting side; and according to a preferred embodiment of the present invention, the light is disposed on the back side The light-reflecting element is reflected back to the light-emitting side of the uranium side to increase the light utilization efficiency and increase the brightness of the light-emitting side. Another object of the present invention is to provide a reflecting structure of a flat type gas discharge lamp which can improve light utilization efficiency and is advantageous for heat removal. In order to achieve the above object, the present invention attaches a composite light-reflecting element including a heat-conductive substrate and a light-reflecting material on the backlight side, except that the light transmitted from the backlight side can be reflected back to the front to improve the light. _ rate, also has the effect of heat dissipation. The preferred embodiment of the present invention is described in detail with reference to the accompanying drawings. [Embodiment] The first embodiment of the H4 system is a flat-type gas discharge lamp, and the j system is an external electrode type design, including: a gas discharge recording tablet money body Weizhi & Thin, and the plate-shaped hole body is emitted through the front glass plate 3; the rear glass plate 40' is located on the backlight side of the flat gas discharge lamp, and the German glass cup 40 ^ is filled with a reaction Gift, may be a mixture of helium or other gases (such as the supply, supply i (^nveiTHHb 'this electrode 5Ga, 5Gb and a power supply, heart) (not shown), by the electrode 50a 50b + The pressure difference causes the reaction gas to generate a discharge phenomenon; ^ a' 5 〇 b between the electricity and 'coated on the front plate 3G axis side toward the Lai 41 table can be shaped like a discharge wire shouting the wire, and most The light soul will induce the glass plate to be lightly irradiated through the 1273623 light reflecting material 42 and applied to the inner side of the rear glass plate 40 toward the cavity 41, and the J surface 'to transmit the light toward the backlight side (in the figure) Reflected by arrow B) is reflected back to the light side of the river (shown by arrow C in the figure). The embodiment is an external electrode type design. In short, the electrodes 50a, 5〇b are disposed outside the cavity 41, and the cross-sectional shape of the front glass plate 3〇 forms a supporting portion 301 having supporting ability. The cross-sectional shape between any two supporting portions 301 is a kind of design or a curved shape to provide the effect of light homogenization. The surface of the towel electrode 5Qa, 5Gb is located at any two positions. The reflective structure of the flat gas discharge lamp disclosed in the present invention is disposed on the outer surface of the rear glass plate 40, that is, a light reflection is disposed on the rear side of the electrode 5〇&, 5 The first preferred embodiment is shown in FIG. 4, which is realized by applying a substrate 61 and coating a surface of the substrate 6 with a film 61 having high light-reflecting ability, and the film 61 is further In the case of the substrate 6A and the electrode 5, the position between the two is preferably "to protect the film 6 by the substrate 6G. In another preferred embodiment of the "figure 5", The electrode 5〇 is covered with an insulation than the lunar surface of 50b (the side facing the backlight side) Then, a film 63 having a high light-reflecting ability is coated on the back surface of the insulating layer 62 to form a light-reflecting element. The rear-eye (four) 16-figure is another type of flat-plate gas discharge lamp. The 'Bega example structure' is an internal electrode type, in short, the electrodes 50a, 50b are placed inside the cavity 41; in this design, the front glass plate and the rear glass plate 4Ga It can be a kind of flat plate-like element, and some support elements 7() are provided between the front glass plate 3〇a and the rear glass plate 4Ga t, and the cavity P is filled with the reaction gas and the chamber is filled. The body 41' is defined by a front glass plate 3A, a rear glass plate 4A, and a package member 71 interposed therebetween and at a rim position, wherein the inner side of the front glass plate 30a is coated toward the surface of the cavity 41. There is a glare material 31, and on the rear glass plate 40a, the surface facing the cavity 41 is coated with a light-reflecting material 42, and the electrodes 5a, 5〇b for causing the reaction gas to generate a discharge image are disposed. Light reflecting material 11 1273623 The surface of the side of the light material 31. Herein, the preferred embodiment of the S-electrode type flat plate '!==" is a composite light reflex comprising a thermally conductive substrate illusion and reflective material 82 in the rear (four) plate m; The light emitted from the backlight side is reflected back to the front side of the light-emitting side I first, and also has the effect of dissipating heat. The cabin reflection system, the reflection I of the flat-plate type discharge lamp disclosed by the present invention is Reflecting the light back to the light-emitting side, increasing the flatness of the flat-type gas discharge lamp, or combining the heat-conducting material to improve the heat-dissipating ability, due to the light-reflecting element, and even if there is an opening in the back plate of the backlight module In the case of the present invention, there is no problem of light leakage. The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of implementation of the present invention. Variations and modifications should be the technical threat of the invention. 12 1273623 [Simple description of the diagram] ί, the appearance of the electric lamp. Fig. 3 is the break of the flat gas discharge lamp with the known a = u type. Fig. 4, A is too: 卩A cross-sectional structural diagram of a polar flat gas discharge lamp. Zl is the first plug-in of the present invention, and it is a cross-sectional structural diagram of a preferred embodiment of the external electrode type, showing a figure, The reflection structure of the 2-body-discharge lamp of the present invention. (4) The structure of the cross section of a preferred embodiment of the body of +4/month 'The external electric type. The type of pole-type 柘 柘 柘 • • 工 工 工 工 工 工The reflection structure of the C gas discharge lamp is the first internal electrode of the invention. The two preferred embodiments have a cross-sectional structure _ symbol: ▲ The reflection structure of the body discharge lamp 10···· · 101 ·... •••Upper glass π ·....•···Support part 12· . . _ ••• Lower glass 13 * · ·-. •······················· ·····•Fluorescent material 15a, 15b· ·····Reflective material 16 · ·..••Electrode 17 · · · · · · · · · Insulation 20 ... • · · · Support • · The invention...· Backlight power supply (Backlig# 30 · · · · · 3〇a · ·.. •····front glass plate 301 ... / •··· front glass plate 31 · · · · * •······························································································· Rte f) 13 1273623 41 .........cavity 42 .........light reflecting material 50a, 50b....electrode 60........ Substrate 61, 63........High reflective ability film 62 · · · Insulation layer 70 ......... support element 71 ....... .. package element 80 .... composite light reflecting element 81 ... ... heat conductive substrate 82 ... ... reflective material
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