201015169 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種背光模組，尤指一種具有固定機構以增強其結構可 靠性的背光模組》 【先前技術】 目前液晶顯示面板已廣泛應用於液晶電視、筆記型電腦、掌上電腦、 影像電話、數位相機顯示螢幕等衆多電子産品中。背光模組（BackLight Module)能夠爲液晶顯示面板提供一均勻、高亮度的光源，使得液晶顯示 面板能夠正常顯示影像。 通常背光模組主要是由光源、反射片、導光板、多種光學膜片（例如 擴散片、棱鏡片等）及膠框等構件組成，按照光源在背光模組中擺放位置 可分爲側光式的背光模組及直下式的背光模組，側光式的背光模組適用於 φ 小尺寸的液晶顯示面板（如手機、個人數位助理器），其光線從側邊入射進 入導光板，再經由反射板的反射將光線傳遞至光學膜片上。直下式的背光 模組適用於大尺寸的液晶顯示面板（如液晶電視），其不含導光板且光源放 置於液晶顯示面板正下方，當光源射出光線後部份會被反射板（Reflector) 反射，然後向上經過擴散板（Diffusionplate)均勻分散後從正面射出。 在習知技術中，背光模組中的導光板或擴散板甚至其他光學膜片與背 光模組均未形成良好的結構固定。例如，在侧光式的背光模組中，導光板 係直接放置膠框内的反射片上，再藉由外框加以固定，而實質上導光板與 5 201015169 * 膠框之間則並無任何固定結構，僅能依靠導光板與膠框之間的尺寸匹配， 若加工後的實際尺寸略有偏差就會産生異音問題，而由於整個背光模組的 結構穩定性比較差，將會嚴重影響産品質量及産品壽命《再例如，在直下 式的背光模組中，擴散板係藉由雙面膠帶固定于燈管固定座上，該固定方 式雖能達到一定的固定效果，但不易組裝及拆卸。 故有必要提供一種新的背光模組，以克服習知技術中無法固定或者不 0 便組裝光學構件之缺陷。 【發明内容】 本發明之主要目的在於提供一種背光模組，具有一固定機構，能夠固 定背光模組内之光學構件，而且固定效果良好、便於組裝及拆解，從而提 高整個背光模組之結構穩定性及其光學品質β 依據本發明之上述目的，本發明提供一種背光模組，包含一基座、一 Q 光學板及一固定機構。固定機構用以固定光學板於基座，固定機構包含有 至少一彈性鎖臂，彈性鎖臂設置於基座的一收容槽内。彈性鎖臂包含：一 連接端、一自由端及一固定凸塊。連接端固定於基座上；自由端係自連接 端延伸而成；以及固定凸塊形成於自由端。固定凸塊具有一固定端面及一 導引面，導引面用以導引光學板滑入基座的收容槽内。 依據本發明之-較佳實施例’彈性鎖臂還包含有—屢緊凸塊設置於 固定凸塊與連接端之間，壓緊凸塊壓靠於光學板。 依據本發明之—較佳實細，基座敝容槽具有—内觀…内底壁、 201015169 -内側壁以及-插人π 4底㈣與_翻平行，_壁係垂直連接内 頂壁及内底壁’插人σ係由内頂壁、嶋壁及内底姻設聽。光學板係 自插入口水平插入收容槽内。 依據本發明之-難實義I，光學板具註彡、—扣槽，絲彈性鎖臂 上的’凸塊’扣槽至少具有-槽底面及—槽側壁，固定凸塊的導引面壓 靠於槽底面，而固定凸塊的固定端面扣持於槽側壁β ❹ 依據本發明之一較佳實施例，彈性鎖臂係設置於收容槽之内頂壁之一 凹陷區内，且彈性鎖臂之固定凸塊凸出於凹陷區而伸入收容槽内。 依據本發明之一較佳實施例，彈性鎖臂係設置於收容槽之内頂壁與内 底壁之間，且彈性鎖臂之連接端係固定於收容槽的内側壁。 依據本發明之一較佳實施例，扣槽係設置於光學板之一侧壁或一光學 表面，用以與彈性鎖臂相配合。 依據本發明之一較佳實施例，彈性鎖臂之連接端係固定於收容槽的内 Ο 底壁，彈性鎖臂之自由端係自連接端垂直於内底壁向内頂壁方向延伸，固 定凸塊之固定端面係壓靠於光學板。 與本發明之先前技術相比較，本發明背光模組係藉由彈性鎖臂將光學 板固定於基座上，而且固定效果良好、組裝便捷，能夠提高整個背光模組 之結構穩定性及其光學品質《在本發明之一實施例中，彈性鎖臂還包含有 一壓緊凸塊，以抵壓於光學板之光學表面或固定邊上，從而能夠進一步提 高背光模組之結構穩定性。在本發明之一實施例中，彈性鎖臂係藉由其固 定端面抵壓於光學板之光學表面上，或者卡扣於光學板上的一扣槽内，從 7 201015169 而實現固定光學板之目的。 為讓本發明之上述内容能更明顯紐，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】 以下各實補的訓是參相加的圓式，職麻本侧可用以實施 之特定實施例。本發明所提到的方向用語，例如「上」、「下」、「前」、「後」、 ❹「左」、「右」、「頂」、「底」、「水平」、「豎直」等，僅是參考附加囷式的方 向。因此，使用的方向用語是用以說明及理解本發明，而非用嫌制本發 明。 在以下各實施辦，在不同關巾，相同部分係以_標號表示。 請參照第一 Α圖至第一 Ε圖所示的本發明背光模組之第一實施例，背 光模組包含二基座1及一光學板2，在每一基座丨上均設置有二固定機構， ❹每-固疋機構均包含有-設置於基座j上的彈性鎖臂3,用以將光學板2固 定於該二基座1上。在其他實施例中，本發明的基座1數量可以是一個或 二個，而設置於基座1上的彈性鎖臂3可以是—個、二個或多個。例如： 本發明可以僅設置一個基座1及一個設置於該基座丨上的彈性鎖臂3 ;或者 僅設置一個基座1，但於該基座丨上則設置多個彈性鎖臂3 ;或者設置二個 基座1，並在其中一個基座1上設置一個彈性鎖臂3，而在另一個基座J上 設置多個彈性鎖臂3。在其他實施例中，本發明還可以設置二個基座丨，並 在其中一個基座1上設置至少一個彈性鎖臂3,而在另一個基座丨上不設置 8 201015169 ‘彈性销臂3，之，本發明背光模組之基座丨及彈性鎖们並不能以第一實 施例所揭示的數量册定，只要具備至少—個基座i及至少—做置於該201015169 IX. Description of the Invention: [Technical Field] The present invention relates to a backlight module, and more particularly to a backlight module having a fixing mechanism to enhance the structural reliability thereof. [Prior Art] Currently, a liquid crystal display panel has been widely used. It is used in LCD TVs, notebook computers, PDAs, video phones, digital camera display screens and many other electronic products. The backlight module (BackLight Module) can provide a uniform, high-brightness light source for the liquid crystal display panel, so that the liquid crystal display panel can display images normally. Generally, the backlight module is mainly composed of a light source, a reflective sheet, a light guide plate, a plurality of optical films (such as a diffusion sheet, a prism sheet, etc.) and a plastic frame, and can be divided into side light according to the position of the light source in the backlight module. Backlight module and direct type backlight module, the edge light type backlight module is suitable for φ small size liquid crystal display panel (such as mobile phone, personal digital assistant), the light is incident from the side into the light guide plate, and then Light is transmitted to the optical film via reflection from the reflector. The direct-lit backlight module is suitable for a large-sized liquid crystal display panel (such as a liquid crystal television), which does not include a light guide plate and the light source is placed directly under the liquid crystal display panel. When the light source emits light, some of the light is reflected by the reflector. Then, it is evenly dispersed upward through a diffusion plate and then ejected from the front. In the prior art, the light guide plate or the diffusion plate in the backlight module and even the other optical film and the backlight module do not form a good structural fixation. For example, in the edge-lit backlight module, the light guide plate is directly placed on the reflective sheet in the plastic frame, and then fixed by the outer frame, and substantially no fixing between the light guide plate and the 5 201015169 * plastic frame The structure can only rely on the size matching between the light guide plate and the plastic frame. If the actual size after processing is slightly deviated, an abnormal sound problem will occur, and the structural stability of the entire backlight module is relatively poor, which will seriously affect the product. Quality and product life. For example, in a direct-lit backlight module, the diffusion plate is fixed to the lamp holder by double-sided tape. Although the fixing method can achieve a certain fixing effect, it is not easy to assemble and disassemble. Therefore, it is necessary to provide a new backlight module to overcome the drawbacks of the prior art that the optical member cannot be fixed or assembled. SUMMARY OF THE INVENTION The main object of the present invention is to provide a backlight module having a fixing mechanism capable of fixing an optical component in a backlight module, and having a good fixing effect, being easy to assemble and disassemble, thereby improving the structure of the entire backlight module. Stability and Optical Quality β According to the above object of the present invention, the present invention provides a backlight module including a base, a Q optical plate and a fixing mechanism. The fixing mechanism is configured to fix the optical plate to the base, and the fixing mechanism comprises at least one elastic locking arm, and the elastic locking arm is disposed in a receiving groove of the base. The elastic locking arm comprises: a connecting end, a free end and a fixing protrusion. The connecting end is fixed to the base; the free end is extended from the connecting end; and the fixing protrusion is formed at the free end. The fixing protrusion has a fixed end surface and a guiding surface for guiding the optical plate to slide into the receiving groove of the base. According to a preferred embodiment of the present invention, the elastic latch arm further includes a plurality of tensioning projections disposed between the fixing projections and the connecting end, the pressing projections being pressed against the optical plate. According to the present invention, preferably, the susceptor groove has a bottom view, an inner bottom wall, a 201015169 inner wall, and a π 4 bottom (four) and a _ turn parallel, the wall is vertically connected to the inner top wall and The inner bottom wall 'inserted σ system is heard by the inner top wall, the sill wall and the inner bottom. The optical plate is inserted horizontally into the receiving slot from the insertion opening. According to the invention, the optical plate has a shackle and a buckle groove, and the 'bump' buckle groove on the wire elastic lock arm has at least a groove bottom surface and a groove side wall, and the guide surface pressure of the fixing protrusion The fixed end surface of the fixing protrusion is fastened to the side wall β of the groove. According to a preferred embodiment of the present invention, the elastic locking arm is disposed in a recessed area of the top wall of the receiving groove, and the elastic lock is The fixing protrusion of the arm protrudes from the recessed area and protrudes into the receiving groove. According to a preferred embodiment of the present invention, the elastic locking arm is disposed between the top wall and the inner bottom wall of the receiving groove, and the connecting end of the elastic locking arm is fixed to the inner side wall of the receiving groove. According to a preferred embodiment of the present invention, the buckle groove is disposed on one side wall or an optical surface of the optical plate for mating with the elastic locking arm. According to a preferred embodiment of the present invention, the connecting end of the elastic locking arm is fixed to the inner bottom wall of the receiving groove, and the free end of the elastic locking arm extends from the connecting end perpendicularly to the inner bottom wall toward the inner top wall, and is fixed. The fixed end face of the bump is pressed against the optical plate. Compared with the prior art of the present invention, the backlight module of the present invention fixes the optical plate to the base by the elastic locking arm, and has good fixing effect and convenient assembly, and can improve structural stability and optical of the entire backlight module. Quality "In one embodiment of the present invention, the elastic locking arm further includes a pressing protrusion for pressing against the optical surface or the fixed side of the optical plate, thereby further improving the structural stability of the backlight module. In an embodiment of the present invention, the elastic locking arm is pressed against the optical surface of the optical plate by its fixed end surface, or is locked in a buckle groove of the optical plate, and the fixed optical plate is realized from 7 201015169. purpose. In order to make the above-mentioned contents of the present invention more obvious, the following description of the preferred embodiments, together with the drawings, will be described in detail as follows: [Embodiment] The following exercises are added in a circular form. The specific embodiment of the occupational hemp side can be implemented. Directional terms as used in the present invention, such as "upper", "lower", "before", "after", "left", "right", "top", "bottom", "horizontal", "vertical" ", etc., only refer to the direction of the additional style. Therefore, the directional terminology used is for the purpose of illustration and understanding of the invention. In the following implementations, the same parts are indicated by _ in different customs. Referring to the first embodiment of the backlight module of the present invention shown in the first to the first drawings, the backlight module comprises two bases 1 and an optical plate 2, and two pedestals are disposed on each of the bases The fixing mechanism, the ❹ every solid-solid mechanism includes a resilient locking arm 3 disposed on the base j for fixing the optical plate 2 to the two bases 1. In other embodiments, the number of the bases 1 of the present invention may be one or two, and the elastic lock arms 3 provided on the base 1 may be one, two or more. For example: the present invention may be provided with only one base 1 and one elastic locking arm 3 disposed on the base cymbal; or only one base 1 is provided, but a plurality of elastic locking arms 3 are disposed on the base cymbal; Alternatively, two bases 1 are provided, and one elastic lock arm 3 is disposed on one of the bases 1, and a plurality of elastic lock arms 3 are disposed on the other base J. In other embodiments, the present invention may also be provided with two base cymbals, and at least one elastic lock arm 3 is disposed on one of the bases 1, and no 8 is provided on the other base 2010 201015169 'elastic pin arms 3 Therefore, the base cymbal and the elastic lock of the backlight module of the present invention cannot be registered in the quantity disclosed in the first embodiment, as long as at least one pedestal i and at least
基座1上的彈性鎖臂3便能夠實現光學板2與基座丨的結合。其中第一 A 圖爲本發明第-實施例之背光模組之基座i的立趙結構示錢；第一 b圓 爲沿著第-A®中之分鱗α·Α的基座1剖面結構示意，以清楚看到本 發明第-實施例之背光模組之固定機構之結構示賴；第—c圖爲本發明 ^ 第一實施例之背光模組之光學板2的立體結構示意囷；第一 D囷爲沿著第 一c圖中之分割線B_B的光學板2剖面結構示意囷；第一E囷爲本發明第 一實施例之光學板2藉由第一實施例之固定機構結合於第一實施例之基座1 上的結構示意圖。 由第一人圖及第一 B圖所示的背光模組之基座1具有一收容槽10,收 容槽ίο大致呈u型結構，具有一内頂壁n、一内底壁12、一内側壁13以 及一插入口 14。内底壁12係與内頂壁n相平行，且於内頂壁u上形成有 〇二凹陷區15，對稱分佈於内頂壁u上。内側壁13係垂直連接内頂壁u及 内底壁12。插入口 14係由内頂壁u、内侧壁13及内底壁12圍設而成， 以便於光學板2自插入口 14水平插入收容槽1〇内。於收容槽10内設置有 一彈性鎮臂3 ’分別容納於枚容槽1〇之内頂壁丨丨上的二凹陷區15内，每 一彈性鎖臂3均能作爲該背光模組之一固定機構。 正如上段所述’在其他實施例中，基座1可以僅設置一個彈性鎖臂3， 故於基座1之收容槽10之内頂壁U上可以僅設置一個凹陷區15。倘若基 座1要設置複數個彈性鎖臂3，那麼凹陷區15之數量亦必須相應增加。當 201015169 • 然，在其它實施例中，凹陷區15及彈性鎖臂3亦可根據對應之光學板2結 構而設置於内底壁12上，或者同時設置於内底壁12與内頂壁u上。 在第一實施例中，如第一 B圖所示，每一彈性鎖臂3均包含：一連接 端30、一自由端32及一固定凸塊34。連接端30固定於基座丨之内側壁13 上。自由端32係自連接端30朝著插入口 14之方向水平延伸，自由端32 在外力之驅使下能夠在一定的撓度範圍内上下位移變形，而凹陷區15則提 Q 供給自由端32所需之變形空間。固定凸塊34係形成於自由端32上且凸出 於凹陷區15而伸入收容槽10内。固定凸塊34具有一固定端面340及一導 引面342,固定端面340係一豎直面，其垂直於彈性鎖臂3。導引面342用 以導引光學板2滑入基座1的收容槽1〇内，導引面342係一圓弧面或一斜 面。在第一實施例中，每一彈性鎖臂3更包含有一壓緊凸塊36，其位於固 定凸塊34與連接端30之間並垂直於彈性鎖臂3，壓緊凸塊36具有一壓緊 端面360，在本實施例中’壓緊端面360爲一水平面。 ® 由第一 C囷及第一 D囷所示的背光模組之光學板2具有一第一光學表 面20、一第二光學表面22、一第一固定邊24，以及一第二固定邊％，其 中第一光學表面20與第二光學表面22係相對設置；第一固定邊24與第二 固疋邊26亦係相對設置，並能夠插入對應之基座1的收容槽中。於第 一光學表面20上設置有四個對稱之扣槽28，用以與對應之彈性鎖臂3配 合’其中二個扣槽28係設置於靠近第一固定邊24之位置，另二個扣槽28 係設置於靠近第二固定邊26之位置，每一扣槽28均具有一槽底面28〇及 一槽側壁282，其中槽底面280之形狀係與固定凸塊34之導引面3似之形 201015169 狀相同，使得二者能夠吻合。槽側壁282係一豎直壁，能夠與固定凸塊34 之固定端面340相配合。可以理解的是，設置於光學板2上之扣槽28數量 係與固定機構（即彈性鎖臂3)之數量相同，而且扣槽28位置亦係與固定 機構之位置相對應。詳言之，在其他實施例中，若固定機構係位於基座i 之收容槽10之内底壁12上的凹陷區15内時，光學板2上的扣槽28則應 設置於第二光學表面22上；或者若在基座1之收容槽1〇之内頂壁u及内 底壁12上均設置有凹陷區15，且凹陷區15内均容納有固定機構時，則應 該在光學板2之第一、第二光學表面22上均設置對應之扣槽28。 請參照第一 E圖所示，在組裝時，光學板2之第一固定邊24及第二固 疋邊26分別自對應之該二基座丨之收容槽1〇之插入口 14水平插入在彈 性鎮臂3之導引面如2的引導下，光學板2最終進入收容槽1〇中，並藉由 彈性鎖臂3固定於基座1上，其中彈性鎖臂3之固定凸塊34之導引面342 係恰好壓靠於扣槽28之槽底面280，而彈性鎖臂3之固定凸塊34之固定端 〇 面340則緊貼並扣持於扣槽28之槽侧壁282上，藉此配合關係可以阻止光 學板2在所有方向上的位移及晃動。又由於彈性鎖臂3之壓緊凸塊％之壓 緊端面360係壓靠於光學板2之第一光學表面2〇上，故此壓緊結構能夠更 進一步提高對光學板2之固定效果。 請參照第二A ®及第二8圏所示之本發明背光模組之第二實施例，其 中第- A ®爲本發明第二實糊之背光·之固定麟設置於第—實施例 之基座1上的剖面結構示意gg ;第二B圖爲藉由本發明第二實施例之固定 機構將第-實施例之光學板2結合於第一實施例之基座1上的結構示意圖。 201015169 由第二A圖所示之本發明第二實施例之固定機構包含有至少一彈性鎖 臂3’。第二實施例之彈性鎖臂3’與第一實施例之彈性鎖臂3之結構大致相 同，第二實施例之彈性鎖臂3,同樣設置於基座丨之收容槽1〇内，並容納於 内頂壁11之凹陷區15内，而且第二實施例之彈性鎖臂3,亦包含有：一連 接端30’、一自由端32,及一固定凸塊34,。但第二實施例之彈性鎖臂3，與第 一實施例之彈性鎖臂3之不同之處係在於：第二實施例之彈性鎖臂3，未設 置有一壓緊凸塊36 (標號見於第一 B圖 > 當光學板2插入基座1之收容 槽10内時，如第二B囷所示，彈性鎖臂3’之固定凸塊34，係壓靠於光學板 2上的扣槽28内’藉此達成扣持固定之功效，從而將光學板2固定於基座 1上。 請參照第三A圖至第三D圖所示之本發明背光模組之第三實施例，其 中第三A圖爲本發明第三實施例之背光模組之基座4之立體結構示意圓； 第二B囷爲沿著第三a圖中之分割線C_C的基座4剖面結構示意囷，以清 Q 楚看到本發明第三實施例之背光模組之固定機構之結構示意圖；第三C囷 爲本發明第三實施例之背光模組之光學板6的立體結構示意圖；第三d圖 爲本發明第三實施例之光學板6藉由第三實施例之固定機構結合於第三實 施例之基座4上的結構示意圖。 請參照第三A圖及第三B圖所示，第三實施例之基座4與第一實施例 之基座1結構大致相同，第三實施例之基座4亦具有一收容槽4〇 ,該收容 槽40係呈U型結構’具有一内頂壁41、一内底壁42、一内側壁43以及一 插入口 44 ;而第三實施例之基座4與第一實施例之基座1的不同之處係在 12 201015169 於：於第三實施例之基座4之内頂壁41上未設置凹陷區Μ (標號見於第一 B囷）》 請參照第三B囷所示，在基座4上設置有兩細定機構，每一固定機 構均包含有-彈性鎖臂5，僅從單_彈性鎖臂5之結構來看，第三實施例之 彈性鎖臂5與第-實施例之彈性鎖臂3之結構相同，即第三實施例之彈性 鎖臂5亦包含有：一連接端5〇、一自由端52、一固定凸塊％及一麼緊凸 ❹塊56。但若從彈性鎖臂5與基座4之相對位置關係來看第三實施例之彈 性鎖臂5與第-實施例之彈性鎖臂3之位置並不相同，即第一實施例之彈 性鎖臂3係設置於收容槽1〇之内頂壁丨〗之凹陷區15内（如第一 b圖所示）， 而第二實施例之彈性鎖臂5係設置於收容槽4〇之内頂壁41與内底壁42之 間，且彈性鎖臂5之連接端50係固定於收容槽4〇的内側壁43上《又，位 於第三實施例之同一基座4上的第三實施例之該二彈性鎖臂5係相對而 設，該二彈性鎖臂5之固定凸塊54係相互面對，以夾持光學板6。 Θ 請參照第三c圖所示，第三實施例之光學板6上的扣槽68係位於光學 板6之侧壁上，而第一實施例之扣槽2S係設置於光學板2之光學表面上。 在第三實施例中’扣槽68亦具有一槽底面680及一槽側壁682。當光學板 6組裝於該二基座4上時，如第三D圖所示，每一彈性鎖臂5之固定凸塊 54係扣持於光學板6之對應之扣槽68内，藉此固定光學板6於基座4上； 而每一彈性鎖臂5之壓緊凸塊56則壓靠於光學板6之對應之侧壁上，以進 一步提高結構穩定性。在第三實施例中，光學板6上具有兩個對稱設置之 凸耳60 ’用以插入第三實施例之基座4的收容槽40内，而設置有扣槽68 13 201015169 " 之侧壁係指凸耳60之側壁601。 請參照第四_示之本發明f光漁之第四實補，其巾光學板6及 基座4均採用第三實施例甲的結構，而且第四實施例之彈性鎖臂5,與第三 實施例之彈性鎖臂5在基座4中的位置完全姻、結構略有不同。第四實 施例之彈性鎖臂5’與第三實施例之彈性鎖臂5之不同之處僅在於：第四實 施例之彈性鎖臂5’未設置有—壓緊凸塊56 (標號見於第三B圖）。 ® 請參㈣五A ®至第五E ®所示之本發明背光歡之第五實施例，其 中第五A囷爲本發明第五實施例之固定機構設置於第三實施例之基座4上 的立艘結構示意圖；第五B囷爲沿著第五A囷中之分割線D_D的基座4剖 面結構示意GB，以清楚看到本發㈣五實施例之背光模組之固定機構之結 構不意囷；第五C圖爲本發明第五實施例之背光模組之光學板8的立體結 構示意圊；第五D圖爲本發明第五實施例之光學板8藉由第五實施例之固 定機構結合於第三實施例之基座4上的立體剖面結構示意圖；第五E圓爲 ❹沿著第五D圖中之分割線E-E剖開後之光學板8與固定機構之配合結構示 意囷》 由第五A圖及第五B囷所示的基座4係與第三實施例之基座4結構相 同，在第五實施例中，基座4上設置有兩個固定機構，每一固定機構均包 含有一彈性鎖臂7，僅從單一彈性鎖臂7之結構來看，第五實施例之彈性鎖 臂7與第一實施例之彈性鎖臂3及第三實施例之彈性鎖臂5之結構均爲相 同，即第五實施例之每一彈性鎖臂7亦均包含有：一連接端7〇、一自由端 72、一固定凸塊74及一壓緊凸塊76。但若從彈性鎖臂7與基座4之相對位 201015169 置關係來看，第五實施例之彈性鎖臂7與第一實施例之彈性鎖臂3及第三 實施例之彈性鮮5之位置柄相同。詳·^之，帛五實施狀彈性销臂7 之連接端70均係固定於收容槽4〇的内底壁42上，彈性鎖臂7之自由端72 係自連接端70垂直於内底壁42向内頂壁41方向延伸，從而形成一站立姿 勢。 由第五C囷所示的本發明第五實施例之光學板8具有一第一固定邊 φ 84、一第二固定邊86、一第一光學表面80及一第二光學表面82 ^第五實 施例之光學板8與前述第一至四實施例中之光學板2、6之最大的區別結構 係：第五實施例之光學板8未設置扣槽28、68。在組裝時，如第五D圖及 第五E囷所示，光學板8之第一固定邊84及第二固定邊86分別插入對應 之基座4的收容槽40内，然後向下按壓光學板8，光學板8會在彈性鎖臂 7之固定凸塊74之導引面742的引導下，進入兩個彈性鎖臂7之間，藉由 該二彈性鎖臂7之夾持可固定光學板8於基座4上。此時，彈性鎖臂7之 〇 固定凸塊74之固定端面740係壓靠於光學板8之第一光學表面80上，而 彈性鎖臂7之壓緊凸塊76則抵壓於光學板8之側壁上，藉此確保光學板8 能夠良好的固定於基座4上。在第五實施例中，光學板8上還設置有兩個 對稱之凸耳88 ’而該二凸耳88就成爲光學板8之第一固定邊84與第二固 定邊86，用以插入基座4的收容槽40内。 除此之外，第五實施例之彈性鎖臂7亦可以設置於收容槽40之内頂壁 41上，其連接端70固定於收容槽40的内頂壁41上，自由端72係自連接 端70垂直於内頂壁41向内底壁42方向延伸。 15 201015169 " 需注意的是’本發明背光模組中光學板（2、6、8)、基座（1、4)及 固定機構（彈性鎖臂3、3’、5、5’、7)之結合方式並不能僅限定於第一實 施例至第五實施例，而是可以將該些實施例混合應用，以産生出更多種的 固定方式。此外，在第一實施例至第五實施例中之光學板（2、6、8)爲一 擴散板，而基座（1、4)爲一燈管固定座。但若第一實施例至第五實施例 中之光學板（2、6、8)爲一導光板時，基座（1、4)則爲一膠框之框壁。 0 綜上所述，本發明確已符合發明專利之要件，爰依法提出專利申請。 惟，本發明已以較佳實施例揭露如上，然其並非用以限定本發明，任何所 屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍内，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。另外，本發明的任一實施例或申請專利範圍不須達成本發明所 揭露之全部目的或優點或特點。此外，摘要部分和標題僅是用來輔助專利 文件搜尋之用，並非用來限制本發明之專利範圍。 〇 【囷式簡單說明】 第一 A囷爲本發明第一實施例之背光模組之基座的立體結構示意圊。 第- B囷爲沿著第一 a圖中之分割線A A的基座剖面結構示意圖以 能夠清楚看至|J本發明第一實施例之背光模組之固定機構之結構示意圖。 第c囷爲本發明第一實施例之背光模組之光學板的立體結構示意 圓。 第一 D囷爲沿著第—c @中之分割線B_B的光學板剖面結構示意圖。 第E圏爲本發明第一實施例之光學板藉由第一實施例之固定機構固 16 201015169 - 定於第一實施例之基座上的結構示意圓。 第二A囷爲本發明第二實施例之背光模組之固定機構設置於第—實施 例之基座上的剖面結構示意圖。 第二B圖爲藉由本發明第二實施例之固定機構將第一實施例之光學板 固定於第一實施例之基座上的結構示意囷。 第三A圊爲本發明第三實施例之背光模組之基座之立體結構示意囷。 參 第二B囷爲沿著第三A圖中之分割線C-C的基座剖面結構示意困，以 能夠清楚看到本發明第三實施例之背光模組之固定機構之結構示意囷。 第二C囷爲本發明第三實施例之背光模組之光學板的立體結構示意 圖。 第二D圖爲本發明第三實施例之光學板藉由第三實施例之固定機構結 合於第三實施例之基座上的結構示意圖。 第四圖爲藉由本發明背光模組之第四實施例之固定機構將光學板固定 於基座上的結構示意囷β 第五Α囷爲本發明第五實施例之固定機構設置於第三實施例之基座上 的立體結構示意囷。 第五B圖爲沿著第五a圖中之分割線D-D的基座剖面結構示意圖，以 能夠清楚看到本發明第五實施例之背光模組之固定機構之結構示意囷。 第五C囷爲本發明第五實施例之背光模組之光學板的立體結構示意 圖。 17 201015169 第五D圖爲本發明第五實施例之光學板藉由第五實施例之固定機構結 合於第三實施例之基座上的立體剖面結構示意囷。 第五E圖爲沿著第五D圖中之分割線E-E剖開後之光學板與固定機構 之配合結構示意圊。 【主要元件符號說明】The elastic locking arm 3 on the base 1 enables the combination of the optical plate 2 and the base cymbal. The first A figure shows the structure of the pedestal i of the backlight module of the first embodiment of the present invention; the first b circle is the pedestal 1 section along the scale α·Α of the first-A® The structure is shown in order to clearly show the structure of the fixing mechanism of the backlight module of the first embodiment of the present invention; FIG. 5 is a schematic perspective view of the optical plate 2 of the backlight module of the first embodiment of the present invention. The first D囷 is a cross-sectional structure of the optical plate 2 along the dividing line B_B in the first c-picture; the first E is the fixing mechanism of the optical plate 2 of the first embodiment of the present invention by the first embodiment A schematic structural view incorporated on the susceptor 1 of the first embodiment. The base 1 of the backlight module shown in the first figure and the first B has a receiving groove 10, and the receiving groove ί has a substantially u-shaped structure, and has an inner top wall n, an inner bottom wall 12 and an inner side. The wall 13 and an insertion port 14 are provided. The inner bottom wall 12 is parallel to the inner top wall n, and a second recessed area 15 is formed on the inner top wall u, symmetrically distributed on the inner top wall u. The inner side wall 13 is perpendicularly connected to the inner top wall u and the inner bottom wall 12. The insertion port 14 is surrounded by the inner top wall u, the inner side wall 13, and the inner bottom wall 12, so that the optical plate 2 is horizontally inserted into the receiving groove 1 from the insertion opening 14. An elastic arm 3' is disposed in the receiving groove 10 and is respectively received in the two recessed areas 15 on the inner wall of the inner cavity 1b. Each elastic locking arm 3 can be fixed as one of the backlight modules. mechanism. As shown in the above paragraph, in other embodiments, the base 1 can be provided with only one elastic locking arm 3, so that only one recessed area 15 can be provided on the top wall U of the receiving groove 10 of the base 1. If the base 1 is to be provided with a plurality of elastic locking arms 3, the number of recessed areas 15 must also be increased accordingly. When 201015169, in other embodiments, the recessed area 15 and the elastic locking arm 3 may be disposed on the inner bottom wall 12 according to the structure of the corresponding optical plate 2, or at the same time, the inner bottom wall 12 and the inner top wall u on. In the first embodiment, as shown in the first B, each of the elastic locking arms 3 includes a connecting end 30, a free end 32 and a fixing projection 34. The connecting end 30 is fixed to the inner side wall 13 of the base. The free end 32 extends horizontally from the connecting end 30 toward the insertion opening 14, and the free end 32 can be displaced up and down within a certain deflection range driven by an external force, and the recessed area 15 is required to supply the free end 32. The deformation space. The fixing projection 34 is formed on the free end 32 and protrudes into the recessed portion 15 to protrude into the receiving groove 10. The fixing projection 34 has a fixed end surface 340 and a guiding surface 342 which is a vertical surface which is perpendicular to the elastic locking arm 3. The guiding surface 342 is used to guide the optical plate 2 into the receiving groove 1 of the base 1. The guiding surface 342 is a circular arc surface or a sloped surface. In the first embodiment, each of the elastic locking arms 3 further includes a pressing protrusion 36 between the fixing protrusion 34 and the connecting end 30 and perpendicular to the elastic locking arm 3, and the pressing protrusion 36 has a pressure. The tight end face 360, in this embodiment, the 'pressing end face 360 is a horizontal plane. The optical plate 2 of the backlight module shown by the first C and the first D has a first optical surface 20, a second optical surface 22, a first fixed edge 24, and a second fixed edge%. The first optical surface 20 and the second optical surface 22 are oppositely disposed. The first fixed side 24 and the second fixed side 26 are also disposed opposite to each other and can be inserted into the receiving groove of the corresponding base 1. Four symmetrical buckle grooves 28 are provided on the first optical surface 20 for engaging with the corresponding elastic locking arms 3. Two of the fastening grooves 28 are disposed adjacent to the first fixed edge 24, and the other two buckles are disposed. The groove 28 is disposed adjacent to the second fixed edge 26, and each of the buckle grooves 28 has a groove bottom surface 28〇 and a groove side wall 282, wherein the groove bottom surface 280 is shaped like the guiding surface 3 of the fixing protrusion 34. The shape of 201015169 is the same, so that the two can match. The slot sidewall 282 is a vertical wall that is engageable with the fixed end face 340 of the fixed projection 34. It can be understood that the number of the buckle grooves 28 provided on the optical plate 2 is the same as the number of the fixing mechanisms (i.e., the elastic lock arms 3), and the position of the buckle groove 28 also corresponds to the position of the fixing mechanism. In other embodiments, if the fixing mechanism is located in the recessed area 15 on the inner bottom wall 12 of the receiving slot 10 of the base i, the latching groove 28 on the optical plate 2 should be disposed in the second optical On the surface 22; or if the recessed area 15 is provided on the top wall u and the inner bottom wall 12 of the receiving groove 1 of the base 1, and the fixing mechanism is accommodated in the recessed area 15, the optical plate should be A corresponding buckle groove 28 is disposed on each of the first and second optical surfaces 22. Referring to FIG. E, when assembled, the first fixed side 24 and the second fixed side 26 of the optical plate 2 are horizontally inserted from the insertion opening 14 of the corresponding receiving groove 1 of the two bases. The guiding surface of the elastic arm 3 is guided by 2, and the optical plate 2 finally enters the receiving groove 1 and is fixed to the base 1 by the elastic locking arm 3, wherein the fixing protrusion 34 of the elastic locking arm 3 The guiding surface 342 is pressed against the groove bottom surface 280 of the buckle groove 28, and the fixed end surface 340 of the fixing protrusion 34 of the elastic locking arm 3 is closely attached to and fastened to the groove side wall 282 of the buckle groove 28. By this cooperation, the displacement and sway of the optical plate 2 in all directions can be prevented. Further, since the pressing end face 360 of the pressing cam 3 of the elastic lock arm 3 is pressed against the first optical surface 2 of the optical plate 2, the pressing structure can further improve the fixing effect on the optical plate 2. Please refer to the second embodiment of the backlight module of the present invention shown in the second A ® and the second embodiment, wherein the -A ® is the backlight of the second solid paste of the present invention, and is disposed in the first embodiment. The cross-sectional structure on the susceptor 1 is shown as gg; the second B is a structural view in which the optical plate 2 of the first embodiment is bonded to the susceptor 1 of the first embodiment by the fixing mechanism of the second embodiment of the present invention. 201015169 The fixing mechanism of the second embodiment of the present invention shown in Fig. 2A includes at least one elastic locking arm 3'. The elastic locking arm 3' of the second embodiment is substantially the same as the elastic locking arm 3 of the first embodiment. The elastic locking arm 3 of the second embodiment is also disposed in the receiving slot 1 of the base, and accommodates The elastic locking arm 3 of the second embodiment also includes a connecting end 30', a free end 32, and a fixing protrusion 34. However, the elastic locking arm 3 of the second embodiment is different from the elastic locking arm 3 of the first embodiment in that the elastic locking arm 3 of the second embodiment is not provided with a pressing protrusion 36 (refer to the number When the optical plate 2 is inserted into the receiving groove 10 of the base 1, as shown in the second B, the fixing projection 34 of the elastic locking arm 3' is pressed against the locking groove of the optical plate 2. In the case of 28, the optical plate 2 is fixed to the susceptor 1 by the effect of the fastening, thereby referring to the third embodiment of the backlight module of the present invention shown in FIGS. 3A to 3D, wherein 3A is a schematic perspective circle of the pedestal 4 of the backlight module of the third embodiment of the present invention; the second B 囷 is a cross-sectional structure of the susceptor 4 along the dividing line C_C of the third a diagram, FIG. 3 is a schematic structural view of a fixing mechanism of a backlight module according to a third embodiment of the present invention; and a third perspective view showing a three-dimensional structure of the optical plate 6 of the backlight module according to the third embodiment of the present invention; The optical plate 6 of the third embodiment of the present invention is coupled to the base 4 of the third embodiment by the fixing mechanism of the third embodiment. Referring to FIGS. 3A and 3B, the base 4 of the third embodiment is substantially identical in structure to the base 1 of the first embodiment, and the base 4 of the third embodiment also has a receiving structure. The receiving groove 40 has a U-shaped structure 'having an inner top wall 41, an inner bottom wall 42, an inner side wall 43, and an insertion opening 44; and the base 4 of the third embodiment and the first embodiment The difference between the pedestal 1 of the example is 12 201015169. The recessed area 未 is not provided on the top wall 41 of the susceptor 4 of the third embodiment (refer to the first B 囷). Please refer to the third 囷As shown, the base 4 is provided with two fine locking mechanisms, each of which includes an elastic locking arm 5, and the elastic locking arm 5 of the third embodiment is seen only from the structure of the single elastic locking arm 5. The structure of the elastic lock arm 3 of the third embodiment is the same, that is, the elastic lock arm 5 of the third embodiment also includes: a connecting end 5〇, a free end 52, a fixing lug %, and a tight cam Block 56. However, the position of the elastic lock arm 5 of the third embodiment and the elastic lock arm 3 of the first embodiment is not seen from the relative positional relationship between the elastic lock arm 5 and the base 4. The same, that is, the elastic locking arm 3 of the first embodiment is disposed in the recessed area 15 of the top wall of the receiving groove 1 (as shown in the first b), and the elastic locking arm 5 of the second embodiment The connection between the top wall 41 and the inner bottom wall 42 of the receiving slot 4 is fixed to the inner side wall 43 of the receiving slot 4, and is also located in the third embodiment. The two elastic locking arms 5 of the third embodiment on the same base 4 are oppositely disposed, and the fixing projections 54 of the two elastic locking arms 5 face each other to clamp the optical plate 6. Θ Please refer to the third As shown in the figure, the retaining groove 68 of the optical plate 6 of the third embodiment is located on the side wall of the optical plate 6, and the retaining groove 2S of the first embodiment is disposed on the optical surface of the optical plate 2. In the third embodiment, the buckle groove 68 also has a groove bottom surface 680 and a groove side wall 682. When the optical plate 6 is assembled on the two bases 4, as shown in FIG. 3D, the fixing protrusions 54 of each of the elastic locking arms 5 are fastened in the corresponding buckle grooves 68 of the optical plate 6. The optical plate 6 is fixed on the base 4; and the pressing protrusions 56 of each of the elastic locking arms 5 are pressed against the corresponding side walls of the optical plate 6 to further improve the structural stability. In the third embodiment, the optical plate 6 has two symmetrically disposed lugs 60' for inserting into the receiving slots 40 of the base 4 of the third embodiment, and is provided with a side of the buckle groove 68 13 201015169 " The wall refers to the side wall 601 of the lug 60. Referring to the fourth embodiment of the present invention, the optical plate 6 and the base 4 of the invention adopt the structure of the third embodiment A, and the elastic locking arm 5 of the fourth embodiment, and the The position of the elastic lock arm 5 of the third embodiment is completely different in the base 4, and the structure is slightly different. The elastic locking arm 5' of the fourth embodiment is different from the elastic locking arm 5 of the third embodiment only in that the elastic locking arm 5' of the fourth embodiment is not provided with a pressing projection 56 (the label is found in the first Three B pictures). ® Refer to the fourth embodiment of the backlight of the present invention shown in (4) five A ® to fifth E ® , wherein the fifth A is the fixing mechanism of the fifth embodiment of the present invention, and is disposed on the base 4 of the third embodiment. The schematic diagram of the upper structure of the upper ship; the fifth B is the sectional structure of the base 4 along the dividing line D_D of the fifth A囷, to clearly see the fixing mechanism of the backlight module of the fifth embodiment of the present invention. The structure of the optical plate 8 of the backlight module of the fifth embodiment of the present invention is a schematic configuration of the optical plate 8 of the fifth embodiment of the present invention. The fifth D is a fifth embodiment of the optical plate 8 of the fifth embodiment of the present invention. The fixing mechanism is combined with the three-dimensional structure diagram of the base 4 of the third embodiment; the fifth E circle is the matching structure of the optical plate 8 and the fixing mechanism after the ❹ is cut along the dividing line EE in the fifth D diagram. The base 4 shown in FIGS. 5A and 5B is the same as the base 4 of the third embodiment. In the fifth embodiment, the base 4 is provided with two fixing mechanisms. Each fixing mechanism includes a resilient locking arm 7, only from the structure of the single elastic locking arm 7, the fifth implementation The elastic locking arm 7 is the same as the elastic locking arm 3 of the first embodiment and the elastic locking arm 5 of the third embodiment, that is, each of the elastic locking arms 7 of the fifth embodiment also includes: a connection The end 7〇, a free end 72, a fixed bump 74 and a pressing bump 76. However, the position of the elastic lock arm 7 of the fifth embodiment and the elastic lock arm 3 of the first embodiment and the elastic fresh 5 of the third embodiment are seen from the relationship between the elastic lock arm 7 and the opposite position 201015169 of the base 4. The handle is the same. Specifically, the connecting end 70 of the elastic pin arm 7 is fixed on the inner bottom wall 42 of the receiving slot 4, and the free end 72 of the elastic locking arm 7 is perpendicular to the inner bottom wall from the connecting end 70. 42 extends in the direction of the inner top wall 41 to form a standing posture. The optical plate 8 of the fifth embodiment of the present invention shown in the fifth embodiment has a first fixed side φ 84, a second fixed side 86, a first optical surface 80 and a second optical surface 82. The largest difference between the optical plate 8 of the embodiment and the optical plates 2, 6 of the first to fourth embodiments described above is that the optical plate 8 of the fifth embodiment is not provided with the buckle grooves 28, 68. During assembly, as shown in FIG. 5D and FIG. 5E, the first fixed side 84 and the second fixed side 86 of the optical plate 8 are respectively inserted into the receiving slots 40 of the corresponding base 4, and then the optical is pressed downward. The plate 8 and the optical plate 8 are guided between the two elastic locking arms 7 under the guidance of the guiding surface 742 of the fixing protrusion 74 of the elastic locking arm 7, and the optical locking arm 7 can fix the optical body by the clamping of the two elastic locking arms 7. The plate 8 is on the base 4. At this time, the fixed end surface 740 of the elastic fixing arm 74 of the elastic locking arm 7 is pressed against the first optical surface 80 of the optical plate 8, and the pressing protrusion 76 of the elastic locking arm 7 is pressed against the optical plate 8. On the side walls, this ensures that the optical plate 8 can be well fixed to the base 4. In the fifth embodiment, the optical plate 8 is further provided with two symmetrical lugs 88', and the two lugs 88 become the first fixed side 84 and the second fixed side 86 of the optical board 8 for inserting the base. The inside of the receiving groove 40 of the seat 4. In addition, the elastic locking arm 7 of the fifth embodiment can also be disposed on the inner top wall 41 of the receiving slot 40, and the connecting end 70 is fixed on the inner top wall 41 of the receiving slot 40, and the free end 72 is self-connected. The end 70 extends perpendicular to the inner top wall 41 in the direction of the inner bottom wall 42. 15 201015169 " Note that the optical plate (2, 6, 8), the base (1, 4) and the fixing mechanism (elastic locking arms 3, 3', 5, 5', 7 in the backlight module of the present invention are required. The combination of the methods is not limited to the first embodiment to the fifth embodiment, but the embodiments may be applied in combination to generate a more fixed manner. Further, the optical plates (2, 6, 8) in the first to fifth embodiments are a diffusion plate, and the base (1, 4) is a lamp holder. However, if the optical plates (2, 6, 8) in the first embodiment to the fifth embodiment are a light guide plate, the base (1, 4) is a frame wall of a plastic frame. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the present invention has been disclosed in the above preferred embodiments. However, it is not intended to limit the invention, and any one of ordinary skill in the art can make a few changes without departing from the spirit and scope of the invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims. In addition, any of the objects or advantages or features of the present invention are not to be construed as being limited by the scope of the invention. In addition, the abstract sections and headings are only used to assist in the search of patent documents and are not intended to limit the scope of the invention. 〇 [Simplified Explanation of the Type] The first A is a schematic perspective view of the base of the backlight module of the first embodiment of the present invention. The first-B is a schematic diagram of the pedestal cross-sectional structure along the dividing line A A in the first drawing, so that the structure of the fixing mechanism of the backlight module according to the first embodiment of the present invention can be clearly seen. The c-th is a three-dimensional schematic circle of the optical plate of the backlight module of the first embodiment of the present invention. The first D囷 is a schematic cross-sectional structure of the optical plate along the dividing line B_B in the first-c @. The first embodiment is an optical plate according to the first embodiment of the present invention. The structure is fixed by the fixing mechanism of the first embodiment. The second A is a schematic cross-sectional structural view of the fixing mechanism of the backlight module according to the second embodiment of the present invention, which is disposed on the base of the first embodiment. Fig. 2B is a view showing the structure of the optical plate of the first embodiment fixed to the base of the first embodiment by the fixing mechanism of the second embodiment of the present invention. The third A is a schematic diagram of the three-dimensional structure of the base of the backlight module of the third embodiment of the present invention. Referring to the second B, the base cross-sectional structure along the dividing line C-C in the third A is schematically illustrated, so that the structural schematic of the fixing mechanism of the backlight module of the third embodiment of the present invention can be clearly seen. The second C is a schematic perspective view of the optical plate of the backlight module of the third embodiment of the present invention. Fig. 2D is a structural schematic view showing the optical plate of the third embodiment of the present invention joined to the base of the third embodiment by the fixing mechanism of the third embodiment. The fourth figure shows a structure in which the optical plate is fixed to the base by the fixing mechanism of the fourth embodiment of the backlight module of the present invention. The fifth embodiment is the third embodiment of the present invention. The three-dimensional structure on the base of the example is shown. Fig. 5B is a schematic cross-sectional view of the susceptor along the dividing line D-D of the fifth embodiment, so that the structure of the fixing mechanism of the backlight module of the fifth embodiment of the present invention can be clearly seen. The fifth C is a schematic perspective view of the optical plate of the backlight module of the fifth embodiment of the present invention. 17 201015169 FIG. 5D is a schematic cross-sectional view showing the optical plate of the fifth embodiment of the present invention joined to the base of the third embodiment by the fixing mechanism of the fifth embodiment. The fifth E diagram is a schematic view of the mating structure of the optical plate and the fixing mechanism taken along the dividing line E-E in the fifth D diagram. [Main component symbol description]
❹ 基座 1、4 内頂壁 11 '41 内侧壁 13 '43 凹陷區 15 第一光學表面20、80 第一固定邊 24、84 扣槽 28、68 槽側壁 282'682 連接端 30、30’、50、70 固定凸塊 34、34’、54、74 導引面 342、742 壓緊端面 360 側壁 601 收容槽 10'40 内底壁 12、42 插入口 14、44 光學板 2'6 > 8 第二光學表面 22、82 第二固定邊 26、86 槽底面 280'680 彈性鎖臂 3、3’、5、5,、7 自由端 32、32,、52、72 固定端面 340、740 壓緊凸塊 36、56、76 凸耳 60、88基座 base 1, 4 inner top wall 11 '41 inner side wall 13 '43 recessed area 15 first optical surface 20, 80 first fixed side 24, 84 buckle groove 28, 68 slot side wall 282' 682 connection end 30, 30' 50, 70 fixing lugs 34, 34', 54, 74 guiding surfaces 342, 742 pressing end surface 360 side wall 601 receiving groove 10'40 inner bottom wall 12, 42 insertion opening 14, 44 optical plate 2'6 > 8 second optical surface 22, 82 second fixed side 26, 86 groove bottom surface 280'680 elastic locking arm 3, 3', 5, 5, 7, free end 32, 32, 52, 72 fixed end surface 340, 740 pressure Tightening lugs 36, 56, 76 lugs 60, 88