538264 A7 B7 1 經濟部智慧財產局員工消費合作社印製 五、發明說明（1 ) [發明之背景]1 ·技·術領域 本發明係關於將使用於筆記型電腦、導航裝置與各種 螢幕上之液晶顯示面板的畫像顯示部予以面狀照明之面光 源裝置，以及具備該面光源裝置之畫像顯示裝置。 2.習知之技術 如眾所週知，在如：筆記型電腦、導航裝置等資訊機 器上，設置顯示畫像之畫像顯示裝置。畫像顯示裝置中， 一般最常使用者係以面光源裝置的輸出光照明由液晶顯示 面板所構成的畫像顯示部，使畫像顯示在畫像顯示部（液晶 顯示面板）的顯示面上。 第13圖至第15圖係表示在該類型的液晶顯示裝置所 使用的面光源裝置之概略構造。這些圖所示的面光源裝置 100中’具有用以收容諸構件的塑膠製框架1〇1。在該框架 101上，依次重疊收容反射板102、導光板1〇3、複數片光 控制構件105至107。而且，在導光板ι〇3的一邊側面所 提供的入射面108附近，收容配置有作為一次光源之螢光 燈110。此外，在螢光燈11 〇的背面側，以螺絲丨丨2固定 使住反射光導入入射面108之反射鏡iu。 以膠帶113將位於最上方的光控制構件1〇7固定在框 架101上。而且，藉由最上方的光控制構件1〇7，可阻止 反射板102、導光板103及其他光控制構件1〇5、1〇6由框 架101的底面114浮起。 液晶顯示面板（省略圖示）設置於該面光源裝置1〇〇的 本紙張尺度適用中國國家標準（CNS)A4規格（210x 297公爱） 312992 --------------裝.-- (請先閱讀背面之注意事項再填寫本頁) •線_ 經濟部智慧財產局員工消費合作社印製 538264 A7 --------- B7___ 五、發明說明（2 ) 上部’這些係故容•固定在筆記型電腦等外殼（省略圖示） 中。 — 近年來’為了提高裝設有畫像顯示裝置的筆記型電腦 等電器之搬動性，而不斷要求裝置的薄化、輕量化。因應 此種需求’設法減少面光源裝置丨〇〇中使用的框架1 〇丨之 厚度與重量。具代表性的方式係為使框架1〇1的厚度變 薄，以及在框架101上施行「薄化」。538264 A7 B7 1 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the Invention (1) [Background of the Invention] 1 Technical and Technical Field The present invention relates to the use of notebook computers, navigation devices and various screens. A surface light source device in which an image display portion of a liquid crystal display panel is planarly illuminated, and an image display device including the surface light source device. 2. Known technology As is well known, an information display device such as a notebook computer, a navigation device and the like is provided with an image display device for displaying an image. In an image display device, a user most often illuminates an image display portion composed of a liquid crystal display panel with output light from a surface light source device, and displays an image on a display surface of the image display portion (liquid crystal display panel). Figures 13 to 15 show the schematic structure of a surface light source device used in this type of liquid crystal display device. The surface light source device 100 shown in these figures has a plastic frame 101 for accommodating components. On the frame 101, a reflection plate 102, a light guide plate 103, and a plurality of light control members 105 to 107 are sequentially stacked and housed. A fluorescent lamp 110 as a primary light source is housed near the incident surface 108 provided on one side of the light guide plate ι03. In addition, on the rear side of the fluorescent lamp 110, a mirror iu that fixes the reflected light to the incident surface 108 is fixed with screws 丨 2. The uppermost light control member 107 is fixed to the frame 101 with an adhesive tape 113. In addition, the uppermost light control member 107 prevents the reflection plate 102, the light guide plate 103, and other light control members 105 and 106 from floating from the bottom surface 114 of the frame 101. The paper size of the liquid crystal display panel (not shown) set on the surface light source device 100 is applicable to the Chinese National Standard (CNS) A4 specification (210x 297 public love) 312992 ------------- -Install .-- (Please read the precautions on the back before filling out this page) • Line _ Printed by the Intellectual Property Bureau Employee Consumer Cooperative of the Ministry of Economic Affairs 538264 A7 --------- B7___ V. Description of Invention (2) The upper part of these cases are fixed in a case (not shown) such as a laptop. — In recent years, in order to improve the portability of appliances such as notebook computers equipped with an image display device, there has been a demand for thinner and lighter devices. In response to such a demand ', efforts have been made to reduce the thickness and weight of the frame 10 used in the surface light source device. Typical methods are to reduce the thickness of the frame 101, and to perform "thinning" on the frame 101.
在此，「薄化」係在框架1 〇丨的一部份設置開口、缺口 等’以減少構成框架101之材料的體積。尚且，施行此方 式時’會造成框架101強度的減低。在這方面來說，若將 面光源裝置100組裝於畫像顯示裝置的外殼中，則框架丨0 J 可藉由畫像顯示裝置的外殼來補強，故之後不會有框架 1〇1強度的問題。 實際上’第13圖至第15圖所示之面光源裝置1〇〇在 欲組裝於前述畫像顯示裝置之外殼内時或是在其他畫像顯 不裝置構件之组裝作業時，一般係以包裝狀態運送至其作 業場所。故，一旦框架1〇1的強度變低，會因面光源裝置 1〇〇在包裝或搬運時之外力的作用（因裝卸的力或震動所施 加的力量），而使框架101變形；如第圖至第17圖所示， 導光板103由框架ιοί的導光板收容部115滑移至畫像顯 示面板收容部116側。 如此的不妥情況，會使導光板103損傷，或變成產生 畫像顯示裝置之組裝不良等原因。特別是如：第15圖所 示，導光板103為楔形之剖面狀時，較易產生不良情況。 本紙張尺度適用中國國家標準（CNS)A4規格（210 x297公爱） 312992 --------訂--------- (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 538264 五、發明說明（ [發明之目的概要] 於是，本發明係提供面光源裝置以及具備同裝置之畫 像顯示裝置，其目的為：即使面光源裝置1〇〇在包裝或搬 運時，產生外力作用，導光板也不會由框架的導光板收容 部滑出。 本發明乃適應用於面光源裝置，其基本上具備··具有 入射面及位於前述入射面的相反侧之末端面之導光板、與 則述入射面相對配置之一次光源、與至少收容前述導光板 及前述一次光源之框架；至少通過前述導光板以輸出前述 一次光源之光。 根據本發明的一個改良，在前述框架上，在前述末端 面的兩端隅角部之對應位置上，設置與前述出射面扣合的 一對爪。藉此，可防止面光源裝置在包裝或搬運時，導光 板由導光板收容部滑出。 在此，面光源裝置也可具有以沿著前述出射面配置之 方式而收容於前述框架内之光控制構件。此時，以在前述 光控制構件上設置用以避免與前述一對爪互相干擾之缺口 部為佳。 再者，根據本發明的另一個改良，在前述框架上，至 少設置一對爪，使其與前述出射面扣合以抑制前述導光板 由前述框架浮起。 [發明之實施型態] 以下參照各圖詳細說明本發明之實施型態。各圖中， 相同的構件係以適當相同的符號來表示。 U氏張<度適用中翻家標準（CNS)A4規格(210 x297公餐「 3 312992 --------^---------線* (請先閱讀背面之注音？事項再填寫本頁) 538264 A7 B7 五、發明說明（4 ) (1)第1實施型態 (請先閱讀背面之注意事項再填寫本頁) 首先參照第1圖至第5圖，說明關於本發明第J實施 型態之面光源裝置。第1圖至第5圖中，第1圖係表示面 光源裝置1的概略構造之分解斜視圖。第2圖係用以說明 將反射版3及導光版4組裝至框架2之斜視圖。第3圖係 沿者第2圖的線A_A之剖視圖。第4圖係表示面光源裝置 1之俯視圖。第5圖係沿著第4圖的線B_B之剖視圖，表 示藉由組裝畫像顯示面板5於面光源裝置1的上部預定位 置，以構成畫像顯示裝置6。 如這些圖所示，面光源裝置1具有收容構成零件之框 架2’在框架2 依次收容反射板3、導光板4、與複數 片光控制構件7至9。而且，螢光燈11以配置在導光板4 一側面所提供之入射面10旁邊之方式，收容於框架2中。 螢光燈11為導光板4的光供給源（一次光源），在其背面側 具備反射鏡12，將反射光導入入射面1〇。 經濟部智慧財產局員工消費合作社印製 框架2由PC(聚破酸酯）、或PMMA(聚甲基丙稀酸甲 酯）等白色合成樹脂構成之射出成形體形成，係為矩形。框 架2上形成導光板收容部13與畫像顯示面板收容部14。 導光板收容部13上，收容支持反射板3、導光板4及控制 構件7至9，同時，設置裝備有螢光燈n之反射鏡12。畫 像顯示面板收容部14僅以對於最上部光控制構件9的表面 之微小空隙，支持液晶顯示面板等畫像顯示面板5。 在此，為達到面光源裝置1之小型化·輕量化，框架 2之厚度盡可能作成薄，再者，在導光板收容部13的底面 本纸張尺度適用中國國家標準（CNS)A4規格（210x 297公釐） 4 312992 538264 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（5 ) 1 5施以薄化，以減少厚度。尚且，該導光板收容部1 3的 底面15,係形成可支持反射板3或導光板4，或可安裝畫 像顯示面板5的控制用零件（無圖示）之形狀。 而且，根據本發明之特徵，在框架2上形成一對爪18、 1 8。該形成位置對應於與導光板4的入射面1 〇相反側的侧 面之末端面16的兩端隅角部。該爪18、18以在末端面16 旁邊扣合出射面17之方式形成。即，各爪18、18具有三 角形的板狀，係以跨越末端面16之相對的導光板收容部 13的面20，以及該面之垂直相交的面21或22之方式形 成。 而且，如第3圖所示，在爪18之相對的導光板收容部 13的底面15上，形成至少與爪18相同大小的孔23。因此， 在爪18的下方，形成可以收容反射板3及導光板4的兩個 隅角部24之空間25。（參照第2圖） 導光板4係由PC、PMMA、環稀烴類樹脂等透光性佳 之樹脂材料形成。具有隨著遠離螢光燈n而厚度變薄之楔 形。出射面（上面）17的形狀為矩形。此外，外型尺寸之設 計需考慮導光板4與框架2的溫度膨脹特性的差、吸濕膨 脹特性的差與製造誤差等。 亦即’在使用面光源裝置1之條件下，除了入射面1〇 之外在末端面（入射面1 〇之相反側的侧面）16及其他側面 26、27，與這些側面16、26、27之相對的導光板收容部 13的面20、21、22之間，產生微小的空隙。 此外’與如後述之以柔軟的板狀構件構成之反射板3 --------^ -----II-- (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 5 312992 538264 A7 五、發明說明（6 ) 或光控制構件7至9不同，導光板4之構成具有簡單而不 會變型之足-夠的剛性。導光板4的光學機能為眾所週。即， 點亮螢光燈11，使該光由入射面1〇導入導光板4的内部， 成為内部傳遞光。該内部傳遞的過程中，產生朝向出射面 17的内部入射》在此，内部入射時的入射角若為臨界角以 下，則一部份的光由出射面17出射。尚且，也可選適當並 採用用以促進由出射面17之光出射之各種大家熟知的手 段。 反射板3係以光反射性佳之樹脂材料（例如白色ρΕτ (聚對苯二甲酸乙二醇酯p〇lyethylene terephthalate》構成5 之板構件，具有與導光板4的出射面17及相反側的面（下 面）28相對應之矩形。眾所週知，反射板3之機能係將由 下面28漏出之光予以反射，以返回導光板4内。該反射板 3係以框架2的底面15及後述反射鏡12的下面部12a支 本實施型態中，配置於導光板4的出射面17側之光控 制構件，由内向外依序為：擴散板（第丨光控制構件）7、一 對稜鏡片（第2及第3光控制構件）8a、8b,及具備弱光擴 散性之保護板（第4光控制構件）9。 這些光控制構件7至9係以光透過性佳之樹脂材料（例 如白色PET)形成，形成與出射面17的形狀對應之矩形。 而且，各光控制構件7至9 ,在與一對爪丨8、丨8相對應之 部分，具有缺口部30。藉此，可避免與一對爪18、18的 干擾（互相碰彳里之困擾）’使各光控制構件7至9無障礙的 312992 (請先閱讀背面之注意事項再填寫本頁) --------訂---------線』 經濟部智慧財產局員工消費合作社印製 一 538264 A7 ^ ----〜-—— 五、發明說明（7 ) 配置於出射面17側的預定位置。 而且，將位&最上方之第3光控制構件今以勝帶I 3!固定於框架2 ’使各光控制構件7至9收容保持在框架 2的導光板收容部内13。尚且，若光控制構件7至9沒有 形成缺口部30、30’則各光控制構件7至9會對應爪18、 18厚度之程度而隆起變形’因而發生部分損壞出射光亮度 的均-化之危險。然而本實施型態中，不會產生此情況。 繼之，反射鏡12可使螢光燈u的光導入入射面1〇 側，而形成剖面呈現U字狀。材料方面，可使用如：聲曲 薄板狀金屬。反射鏡U的直立壁面部12b及上面部Uc 收容在框架2内’下面部12a以螺絲32、32固定於框架2 的的反射鏡固定部33、33。 而且’該反射鏡12的下面部i2a支持反射板3、導 光板4及光控制構件7至9的螢光燈n側的端部。此外， 以同下面部12a與上面部12c扶持反射板3及導光版4的 螢光燈11側的端部。 如上所構成的面光源裝置1中，反射板3及螢光燈U 側的端部（入射面1 〇側的端部）固定於框架2，以反射鏡i 2 的上面部12c與下面部12a扶持。而且，反射板3及導光 板4的末端面16側的兩隅角部24、24，扣合於框架2上 所形成的一對爪1 8、1 8。 藉此，可防止導光板4由框架2的底面15浮起。因此， 即使施加外力於面光源裝置1，也可確實的將導光板4保 持在框架2的導光板收容部13内，導光板4不會由導光板 本紙張尺度適用中國國家標準（CNS)A4規格⑵0^297公爱） 7 312992 ^---- (請先閱讀背面之注*事項再填寫本頁) · · •線 經濟部智慧財產局員工消費合作社印製 538264 A7 Β7 五、發明說明（8 ) 收容部1 3滑移至晝像顯示面板收容部1 4側。 因此’根據本實施型態，可防止因導光板4由導光板 收谷部13滑移而產生導光板4的損傷。此外同時，可防止 畫像顯示裝置6的組裝不良。尚且，在板厚隨著導光板4 遠離入射面10(螢光燈11)而變薄之剖面為楔形時，防止該 導光板4浮起之效果較大；特別是，隨著導光板4的末端 面16側的厚度愈薄愈明顯。 此外，本實施型態中，如上述即使在框架2上施以薄 化減少厚度，以減低其剛性，由於導光板4藉由反射鏡12 與一對爪18、18,扣合於框架，故框架2可藉由導光板4 補強。因此，本實施型態中，即使框架2本身的剛性變小， 也可確實的收容·支持螢光燈11或光控制構件7至9等構 成零件。再者，也可容易確實的組裝畫像顯示面板5及其 控制零件（無圖示），即使發生外力作用也不會產生過度的 應力於畫像顯示面板5及其控制構件^ 此外’本實施型態中需加以留意者：防止導光板4由 框架2浮起之加工係在框架2側，不需要特別在導光板* 加工。即，在框架2的一部份上形成一對爪18、18，並非 在導光板4形成扣合用的突起或凹部等。若在導光板4形 成突起或凹部，則會成為異常發光的原因β本實施型態中， 並不需要擔心此情況。 尚且，在此異常發光係導光板所形成的突起或凹部的 邊緣部分之光比其他部分還明亮，其由導光板的出射面上 方所看，為局部的過剩亮度部分之現象。該異常發光，不 312992 (請先閱讀背面之注意事項再填寫本頁) -------訂---------線一 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 53§264 A7 -------— Π7 _ 五、發明說明（9 ) 用說當然會降低照明品質。 (請先閱讀背面之注意事項再填寫本頁) 本實施型態中’另―需要留意之點為在導光板4的末 端面丨6側的隅角部24、24兩處，各自與爪^^相扣合。 藉此’與僅使隅角部24、24的一處扣合於爪18的情況相 比較，導光板4與框架2可更確 即右僅採用使末端面16側的隅角部24、24之_處 扣合於爪18之構成’在進行面光源裝置！的搬運或筆記型 丨電滕等外殼之組裝時’容易在沒有扣合於；K 18之隅角部 24側產生框架2之變形。於是，導光板4與框架2之間、 或導光板2與反射板3之間容易產生產生大空隙使垃圾 進入該空隙間而產生照明品質低下之危險性。然而本實施 型態中，不需擔心此情況。 (2)第2實施型態 本實施型態的特徵如第6、第7圖所示。其他部分的 構成與各種機能係與第1實施型態相同。在此，僅說明本 _實施型態之重要特徵，以省略重複之說明。 如第6圖、第7圖所描式之本實施型態面光源裝置1， 經濟部智慧財產局員工消費合作社印製 在導光板4的出射面17中，扣合於末端面16兩端之相對 應隅角部24附近之四角板狀的爪34、34，在同處突出形 成於末端面16之相對的框架2的面20。 該一對爪34、34的下方，形成有收容反射板3與導光 板4的空間25。此外，各光控制構件7至9,在一對爪34、 34之相對應部分形成缺口，以無障礙的配置於導光板4的 出射面17側之預定位置。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公ίΓ) 9 312992 538264 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 A7 B7 五、發明說明（10) 如此’本實施型態中，除了採用爪34、34以代替第1 實施型態、中之爪18、18之外，基本上維持帛！實施型態的 構成以及所伴隨的各種作用。因此，不用說，本實施型態 當然也可得到與第1實施型態相同的效果。 (3 )第3實施型態 本實施型態的特徵如第8、第9圖所示。其他部分的 構成與各種機能係與第i或第3實施型態相同。在此，僅 說明本實施型態之重要特徵，以省略重複之說明。 本實施型態面光源裝置！，如第8至第9圖所示，四 角板狀的爪35、35突出形成於框架2的面21、22。該形 成位置係在導光板4的出射面17，而直為接近末端面^ 兩端之相對應的隅角部24、24之部分，而爪35、35扣人 於該部分。 ° 而且，在-對爪35、35的下方，形成有收容反射板3 與導光板4的空間36«此外，各光控制構件7至9,在一 對爪35、35之相對應部分形成缺口。藉此，光控制構件7 至9無障礙的配置出射面I?側之預定位置。 如此，本實施型態中，除了採用爪35、35，以代替第 i實施型態中之爪18、18之外，基本上維持第！實施型態 的構成以及其所伴隨的各種作用。因此，不用說，本實施 型態當然也可知"到與第1實施型態相同的效果。 (4)第4實施型態 本實施型態的特徵如第10(a)圖至第1〇(c)圖所示。其 他部分的構成與各種機能與第！或第3實施型態相同。在 本紙張尺度適用中國國家標準（CNS)A4規格（21〇 X 297公爱 312992 (請先閱讀背面之注意事項再填寫本頁)Here, "thinning" is to provide openings, cutouts, etc. 'in a part of the frame 101 to reduce the volume of the material constituting the frame 101. Moreover, when this method is performed, the strength of the frame 101 is reduced. In this regard, if the surface light source device 100 is assembled in a casing of an image display device, the frame can be reinforced by the casing of the image display device, so there is no problem of the strength of the frame 101 afterwards. In fact, the surface light source device 100 shown in Figs. 13 to 15 is generally packaged when it is intended to be assembled in the casing of the aforementioned image display device or when other image display device components are assembled. The condition is transported to its workplace. Therefore, once the strength of the frame 101 becomes low, the frame 101 will be deformed due to the external force of the area light source device 100 during packaging or transportation (force due to loading or unloading force or vibration); As shown in FIGS. 17 to 17, the light guide plate 103 is slid from the light guide plate storage portion 115 of the frame to the image display panel storage portion 116 side. Such an inconvenience may cause damage to the light guide plate 103, or cause a defective assembly of the image display device. In particular, as shown in Fig. 15, when the light guide plate 103 has a wedge-shaped cross-sectional shape, a defect is more likely to occur. This paper size applies to China National Standard (CNS) A4 specification (210 x297 public love) 312992 -------- Order --------- (Please read the precautions on the back before filling this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 538264 V. Description of the invention ([Summary of the purpose of the invention] Therefore, the present invention provides a surface light source device and an image display device provided with the same device. 〇 During packaging or transportation, an external force is generated, and the light guide plate will not slide out of the light guide plate receiving portion of the frame. The present invention is suitable for use in a surface light source device, which basically has an incident surface and is located on the aforementioned incident surface The light guide plate on the opposite end surface, the primary light source disposed opposite to the incident surface, and a frame containing at least the light guide plate and the primary light source; at least the light guide plate is used to output the light of the primary light source. In an improvement, on the frame, a pair of claws that are engaged with the exit surface are provided at the corresponding positions of the corners on both ends of the end surface. This can prevent surface light. When the device is packaged or transported, the light guide plate slides out of the light guide plate receiving portion. Here, the surface light source device may have a light control member housed in the frame in a manner of being arranged along the exit surface. At this time, the It is preferable that a notch portion is provided on the light control member to avoid mutual interference with the pair of claws. Furthermore, according to another improvement of the present invention, at least one pair of claws is provided on the frame so as to emit light from the pair of claws. The surface is fastened to prevent the light guide plate from floating from the aforementioned frame. [Embodiments of the invention] The embodiments of the present invention will be described in detail below with reference to the drawings. In each of the drawings, the same components are represented by appropriate and identical symbols. U's Zhang < degree is suitable for CNS A4 size (210 x 297 meals "3 312992 -------- ^ --------- line * (Please read the Phonetic notation? Please fill out this page again) 538264 A7 B7 V. Description of the invention (4) (1) The first implementation type (please read the precautions on the back before filling out this page) First refer to Figures 1 to 5 to explain Regarding the surface light source device according to the Jth embodiment of the present invention, FIGS. 1 to 5 Fig. 1 is an exploded perspective view showing a schematic structure of the surface light source device 1. Fig. 2 is an oblique view illustrating the assembly of the reflection plate 3 and the light guide plate 4 to the frame 2. Fig. 3 is a second view along the second side. A sectional view taken along line A_A in the figure. FIG. 4 is a plan view showing the surface light source device 1. FIG. 5 is a sectional view taken along line B_B in FIG. Position to constitute the image display device 6. As shown in these figures, the surface light source device 1 has a frame 2 'that houses constituent parts. The frame 2 houses a reflection plate 3, a light guide plate 4, and a plurality of light control members 7 to 9 in this order. Further, the fluorescent lamp 11 is housed in the frame 2 so as to be disposed beside the incident surface 10 provided on one side of the light guide plate 4. The fluorescent lamp 11 is a light supply source (primary light source) of the light guide plate 4, and is provided with a reflecting mirror 12 on the back side thereof to guide the reflected light to the incident surface 10. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives. Frame 2 is formed by injection moldings made of white synthetic resin such as PC (polyester) or PMMA (polymethyl methacrylate), and is rectangular. A light guide plate storage portion 13 and an image display panel storage portion 14 are formed on the frame 2. The light guide plate accommodating portion 13 houses and supports the reflection plate 3, the light guide plate 4, and the control members 7 to 9, and at the same time, a reflector 12 equipped with a fluorescent lamp n is provided. The image display panel storage portion 14 supports an image display panel 5 such as a liquid crystal display panel with a small gap to the surface of the uppermost light control member 9. Here, in order to reduce the size and weight of the surface light source device 1, the thickness of the frame 2 should be made as thin as possible. Furthermore, the paper size of the bottom surface of the light guide plate receiving portion 13 applies the Chinese National Standard (CNS) A4 specification 210x 297 mm) 4 312992 538264 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (5) 1 5 Thinned to reduce thickness. In addition, the bottom surface 15 of the light guide plate accommodating portion 13 is formed in a shape that can support the reflection plate 3 or the light guide plate 4, or can be mounted with a control part (not shown) for the image display panel 5. Furthermore, according to a feature of the present invention, a pair of claws 18, 18 are formed on the frame 2. This formation position corresponds to both corner portions of the end surface 16 of the side surface opposite to the incident surface 10 of the light guide plate 4. The claws 18 and 18 are formed so as to engage the exit surface 17 beside the end surface 16. That is, each of the claws 18, 18 has a triangular plate shape, and is formed so as to straddle the surface 20 of the light guide plate receiving portion 13 opposite to the end surface 16 and the surface 21 or 22 perpendicularly intersecting the surface. Further, as shown in FIG. 3, a hole 23 having at least the same size as the claw 18 is formed in the bottom surface 15 of the light guide plate accommodating portion 13 facing the claw 18. Therefore, a space 25 is formed below the claw 18 to accommodate the two corner portions 24 of the reflection plate 3 and the light guide plate 4. (Refer to FIG. 2) The light guide plate 4 is formed of a resin material having excellent light transmittance, such as PC, PMMA, and cycloolefin resin. It has a wedge shape that becomes thinner as it moves away from the fluorescent lamp n. The shape of the exit surface (upper surface) 17 is rectangular. In addition, the design of the external dimensions must take into consideration the difference in temperature expansion characteristics of the light guide plate 4 and the frame 2, the difference in moisture absorption expansion characteristics, manufacturing errors, and the like. That is, 'in the condition that the surface light source device 1 is used, in addition to the incident surface 10, the end surface (side surface opposite to the incident surface 10) 16 and other side surfaces 26, 27, and these side surfaces 16, 26, 27 There is a slight gap between the faces 20, 21, and 22 of the opposite light guide plate housing portion 13. In addition, 'and reflecting plate 3 made of flexible plate-like members as described later -------- ^ ----- II-- (Please read the precautions on the back before filling this page) Applicable to China National Standard (CNS) A4 specification (210 X 297 mm) 5 312992 538264 A7 V. Description of invention (6) or light control members 7 to 9 are different, the structure of light guide plate 4 is simple and will not be modified- Sufficient rigidity. The optical function of the light guide plate 4 is well known. That is, the fluorescent lamp 11 is turned on, and the light is introduced into the light guide plate 4 from the incident surface 10 to become internally transmitted light. In the process of internal transmission, internal incidence toward the exit surface 17 occurs. Here, if the incident angle during the internal incidence is below the critical angle, a part of the light is emitted from the exit surface 17. In addition, various well-known means for promoting the emission of light from the exit surface 17 may be selected and used appropriately. The reflecting plate 3 is a plate member made of a resin material having high light reflectivity (for example, white ρΕτ (polyethylene terephthalate) 5), and has a light exit plate 17 and a surface opposite to the light guide plate 4 (Bottom) A rectangle corresponding to 28. As is known to all, the function of the reflection plate 3 is to reflect the light leaked from the bottom 28 to return to the light guide plate 4. The reflection plate 3 is based on the bottom surface 15 of the frame 2 and the mirror 12 described later. The lower portion 12a supports the light control member disposed on the exit surface 17 side of the light guide plate 4 in this embodiment, from the inside to the outside in order: a diffusion plate (the first light control member) 7, a pair of cymbals (the second And third light control member) 8a, 8b, and a protective plate (fourth light control member) 9 having weak light diffusivity. These light control members 7 to 9 are formed of a resin material (such as white PET) having excellent light transmittance. A rectangular shape corresponding to the shape of the exit surface 17 is formed. Further, each of the light control members 7 to 9 has a notch portion 30 at a portion corresponding to the pair of claws 丨 8, 丨 8. Thus, it is possible to avoid contact with a pair of Disturbance of claws 18, 18 ) '312992 to make each light control member 7 to 9 barrier-free (please read the precautions on the back before filling this page) -------- Order --------- line Printed by the Consumer Affairs Cooperative of the Property Bureau 538264 A7 ^ ---- ~ ----- V. Description of the invention (7) It is arranged at a predetermined position on the side of the exit surface 17. Moreover, the third light control member at the top & The YI belt I 3! Is fixed to the frame 2 'so that each of the light control members 7 to 9 is housed and held in the light guide plate receiving portion 13 of the frame 2. Moreover, if the light control members 7 to 9 do not form the notch portions 30 and 30', Each of the light control members 7 to 9 will bulge and deform according to the thickness of the claws 18 and 18, thereby causing a partial damage to the uniformity of the brightness of the emitted light. However, this situation does not occur in this embodiment. Next, The reflecting mirror 12 can guide the light of the fluorescent lamp u to the side of the incident surface 10 and form a U-shaped cross section. In terms of materials, for example, a sound-curving thin plate-shaped metal. The upright wall surface 12b and the upper surface of the reflecting mirror U Uc is housed in the frame 2 and the lower surface portion 12 a is fixed to the mirror fixing portion 33 of the frame 2 with screws 32 and 32. 33. Furthermore, 'the lower surface portion i2a of the reflecting mirror 12 supports the end portion of the fluorescent lamp n side of the reflection plate 3, the light guide plate 4, and the light control members 7 to 9. In addition, the reflection is supported by the lower surface portion 12a and the upper surface portion 12c. The end portions on the fluorescent lamp 11 side of the plate 3 and the light guide plate 4. In the surface light source device 1 configured as described above, the end portions on the reflection plate 3 and the U side of the fluorescent lamp (end portions on the incident surface 10 side) are fixed. On the frame 2, the upper surface portion 12c and the lower surface portion 12a of the mirror i 2 are supported. The two corner portions 24 and 24 on the side of the end surface 16 of the reflection plate 3 and the light guide plate 4 are formed by being fastened to the frame 2. Of a pair of claws 18, 18. Thereby, the light guide plate 4 can be prevented from floating from the bottom surface 15 of the frame 2. Therefore, even if an external force is applied to the surface light source device 1, the light guide plate 4 can be surely held in the light guide plate accommodating portion 13 of the frame 2. Specifications ⑵0 ^ 297 public love) 7 312992 ^ ---- (Please read the note on the back * Matters before filling out this page) · · • Printed by the Intellectual Property Bureau Employee Consumer Cooperative of the Ministry of Economic Affairs 538264 A7 Β7 V. Description of the invention ( 8) The storage portion 13 slides to the day image display panel storage portion 14 side. Therefore, according to this embodiment, the light guide plate 4 can be prevented from being damaged due to the light guide plate 4 sliding from the light guide plate trough portion 13. At the same time, the assembly of the image display device 6 can be prevented. Moreover, when the thickness of the light guide plate 4 becomes thinner as the light guide plate 4 moves away from the incident surface 10 (fluorescent lamp 11), the effect of preventing the light guide plate 4 from floating is greater; in particular, as the light guide plate 4 The thinner the thickness on the end surface 16 side, the more pronounced. In addition, in this embodiment, as described above, even if the frame 2 is thinned to reduce its thickness to reduce its rigidity, the light guide plate 4 is fastened to the frame by the reflecting mirror 12 and a pair of claws 18 and 18, so The frame 2 can be reinforced by the light guide plate 4. Therefore, in the present embodiment, even if the rigidity of the frame 2 itself is reduced, it is possible to reliably contain and support components such as the fluorescent lamp 11 or the light control members 7 to 9. Furthermore, the image display panel 5 and its control parts (not shown) can be easily and surely assembled, and even if an external force occurs, excessive stress is not generated on the image display panel 5 and its control members. Note that: The processing to prevent the light guide plate 4 from floating from the frame 2 is on the side of the frame 2 and does not need to be specially processed on the light guide plate *. In other words, a pair of claws 18 and 18 are formed on a part of the frame 2 instead of forming projections or recesses for fastening in the light guide plate 4. If protrusions or recesses are formed in the light guide plate 4, it may cause abnormal light emission. In this embodiment, there is no need to worry about this. In addition, the edge portions of the protrusions or recesses formed by the abnormal light-emitting light guide plate are brighter than other portions, and the phenomenon of local excess brightness is seen from above the light guide plate's emission surface. This abnormal light is not 312992 (please read the precautions on the back before filling out this page) ------- Order --------- Printed by the Consumer Consumption Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 53§ 264 A7 --------- Π7 _ V. Description of the invention (9) Of course, it will reduce the quality of lighting. (Please read the precautions on the back before filling in this page) In this implementation mode, 'Other- The point to pay attention to is the two corner portions 24, 24 on the end surface of the light guide plate 4 and 6 sides, each with the claw ^ ^ Piece together. In this way, as compared with the case where only one of the corner portions 24 and 24 is fastened to the claw 18, the light guide plate 4 and the frame 2 can be more accurately. That is, only the corner portions 24 and 24 on the end surface 16 side are used. The structure of “_” which is fastened to the claws 18 is' surface light source device in progress! When carrying or assembling a case such as an electric stenter, it is easy to be unfastened; the frame 2 is deformed on the side of the corner portion 24 of K18. Therefore, a large gap is easily generated between the light guide plate 4 and the frame 2 or between the light guide plate 2 and the reflection plate 3, and there is a danger that the garbage enters the space and the lighting quality is low. However, in this embodiment, there is no need to worry about this situation. (2) Second implementation mode The characteristics of this implementation mode are shown in Figs. 6 and 7. The structure and other functions of other parts are the same as those of the first embodiment. Here, only the important features of this embodiment will be described, and repeated descriptions will be omitted. As shown in FIG. 6 and FIG. 7, the surface light source device 1 of this embodiment is printed on the exit surface 17 of the light guide plate 4 by the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, and is fastened to the two ends of the end surface 16. Corresponding to the rectangular plate-shaped claws 34 and 34 near the corner portion 24, the surfaces 20 of the frame 2 opposite to the end surface 16 are protruded at the same place. Below the pair of claws 34, 34, a space 25 is formed to accommodate the reflection plate 3 and the light guide plate 4. In addition, each of the light control members 7 to 9 is formed with a notch at a corresponding portion of the pair of claws 34, 34, and is arranged at a predetermined position on the light-exiting surface 17 side of the light guide plate 4 without obstacles. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public Γ) 9 312992 538264 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (10) The claws 34 and 34 are used instead of the first embodiment, and the claws 18 and 18 are basically maintained. The structure of the implementation type and the accompanying roles. Therefore, it goes without saying that the same effects as those of the first embodiment can be obtained in this embodiment. (3) The third embodiment mode The characteristics of this embodiment mode are shown in Figs. 8 and 9. The structure and other functions of the other parts are the same as those of the i-th or third embodiment. Here, only the important features of this embodiment will be described, and redundant descriptions will be omitted. This embodiment type surface light source device! As shown in FIGS. 8 to 9, the rectangular plate-shaped claws 35 and 35 protrude from the surfaces 21 and 22 of the frame 2. This formation position is at the exit surface 17 of the light guide plate 4 and is straight to the part corresponding to the corner portions 24, 24 at both ends of the end surface ^, and the claws 35, 35 are buckled in this portion. ° Further, a space 36 accommodating the reflection plate 3 and the light guide plate 4 is formed below the pair of claws 35 and 35. In addition, in each of the light control members 7 to 9, a gap is formed in a corresponding portion of the pair of claws 35 and 35. . Thereby, the light control members 7 to 9 are arranged in a predetermined position on the exit surface I? Side without obstacles. In this way, in this embodiment, except that the claws 35 and 35 are used instead of the claws 18 and 18 in the i-th embodiment, the number is basically maintained! The composition of implementation types and the various roles they accompany. Therefore, needless to say, it is understood that the same effect as that of the first embodiment can be obtained in this embodiment. (4) Fourth embodiment The features of this embodiment are shown in Figures 10 (a) to 10 (c). The composition of other parts and various functions and features! Or the third embodiment is the same. At this paper size, the Chinese National Standard (CNS) A4 specification is applicable (21〇 X 297 Public Love 312992 (Please read the precautions on the back before filling this page)
538264 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（11 ) 此，僅說明本實施型態之重要特徵，以省略重複之說明。 本實施型態面光源裝置1中，一如第l〇(a)圖至第1〇(c) 圖所示，爪38、38加入第1實施型態中採用的爪ι8、18、 第2實施型態中採用的爪34、34、或第3實施型態中採用 的爪35、35’而突出形成於框架2的面21、22。 該形成位置對應於導光板4的出射面17的入射面旁邊 37、37部分，而爪38、38扣合於該部分。 而且，在各爪38、38的下方，形成用以收容反射板3 與導光板4的空間。此外，在各光控制構件7至9之各爪 18、34、35、38之相對應部分形成缺口，使各光控制構件 無障礙的配置於導光板4的出射面17側之預定位置。 如此，本實施型態中，除了採用加入有第1至第3實 施型態中的爪18、34、35之爪38、38之外，基本上維持 與第1至第3實施型態的構成以及所伴隨的各種作用。因 此，不用說，本實施型態當然也可得到與這些實施型態相 同的效果" 此外，本實施型態之面光源裝置1，以反射鏡12扶持 導光板4與反射板3，以固定於框架2之困難情況中，藉 由爪38、38以扣合於導光板4的入射面旁邊部分37，可 防止導光板4由框架2浮起。 以上為說明第1至第4實施型態，並不是限定本發明 之曰趣。然而關於以上實施型態’尚需留意以下幾點。 (i)前述各實施型態中，以第1光控制構件7將來自導 光板4的出射面17之光予以擴散，以達到亮度分布之均一 ---------------------^--------- (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 11 312992 538264 經濟部智慧財產局員工消費合作社印製 A7 五、發明說明（U) 化，繼之，以第2及第3光控斛播杜β 。 尤衩fi構件8a、8b改變朝向 板4的出射面17法線方向 Π之九的仃進方向，以增加有效 照明所得到之光的比例。光控制構件8a、8b，眾所週知， 使用形成多數稜鏡列構件之麟件，該棱鏡列的延伸方向， 與光控制構件8a、8b相差90度。 第4光控制構件9，主要使用作為防止光控制構件8b 的稜鏡面損傷之保護板’然而為更能達到照明光的均一 化，依據需要賦予擴散板的機能。 然而，如此的光控制構件與使用方法，僅為其中一個 例子。例如：在導光板4的下面28形成與第2光控制構件 8a的稜鏡面相同的稜鏡面時’也可省略第2光控制構件 8a ° 一般而言，可採用此種面光源裝置丨^^以往所知的 各種構成，以作為導光板4或光控制構件？至9之具體的 構成。 ^ 、 (11)本發明中，防止導光板4由框架2的底面15浮起 的爪18、34、35、38 ,並不限於前述各實施型態所示之構 件。只要可維持該機能，也可適宜將形狀、形成位置與數 量予以變更。 (iii)前述實施型態中，也會有由於光控制構件7至9 與各爪18發生干擾而使亮度產生變化的部位不用於照明 之情形。此外，即使各光控制構件7至9有因各爪18、34、 35、38的干擾而產生亮度變化的部分，有時也不會成為照 明上的問題。若有該情形，不在各光控制構件7至9上形 本紙張尺度適用中國國家標準（CNS)A4規格（210x 297公釐） 312992 --------1--------- (請先閱讀背面之注意事項再填寫本頁) 538264 A7 五、發明說明（I3) 成缺口部30也可以。 (iv)導光板的剖面形狀也可以 ^ 疋稷形。例如··也可- 採用全體為實質的均一厚度之導# 等先板。此外，也可採用其 他剖面形狀的導光板。 (5)其他變形的實施型態 第11圖係表示第1實施型雜的廐 I怎的應用例。如該圖所示， 在第1光控制構件7與第2光控制禮彼0 尤役制構件8a的兩個隅角部 上’以不會干擾框架2的爪18、18之方式形成缺口部％、 30。此外，在第3光控制構件朴的圖中右側之隅角部上， 形成缺口部3 0。 在第4光控制構件9的兩個隅角部上，不形成任何缺 口。另-方面’框架2的兩個隅角部的爪18]8中之圖中 左側的爪18之厚度T卜如第12⑷圖所示，形成與第以 第2光控制構件7、8a的兩片光控制構件相同尺寸之厚度。 經濟部智慧財產局員工消費合作社印製 藉由這樣的構成，使組裝作業中難以區別的第2光控 制構件8a與第3光控制構件扑可藉由缺口部川之標記予 以區別。即，第2光控制構件8a與第3光控制構件扑， 以棱鏡面的形成方向相差90度之方式形成;然而由於該稜 鏡面的形成間距極小’故以稜鏡面的形成方向來區別有困 難，組裝上恐有順序顛倒之虞。 然而，如上所述，若以缺口部3〇的有無來區別第2 光控制構件8a與第3光控制構件8b，則可防止第2光控 制構件8a與第3光控制構件扑之順序錯誤而導致組裝不 良之情況發生。538264 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of Invention (11) Here, only the important features of this implementation form will be described, and repeated descriptions will be omitted. In the surface light source device 1 of this embodiment, as shown in FIGS. 10 (a) to 10 (c), the claws 38 and 38 are added to the claws 8, 18, and 2 used in the first embodiment. The claws 34 and 34 used in the embodiment or the claws 35 and 35 ′ used in the third embodiment are formed to protrude from the surfaces 21 and 22 of the frame 2. This formation position corresponds to the portions 37 and 37 beside the incident surface of the exit surface 17 of the light guide plate 4, and the claws 38 and 38 are fastened to this portion. A space for accommodating the reflection plate 3 and the light guide plate 4 is formed below each of the claws 38 and 38. In addition, cutouts are formed in the corresponding portions of the claws 18, 34, 35, and 38 of each of the light control members 7 to 9, so that each light control member is arranged at a predetermined position on the light-exiting surface 17 side of the light guide plate 4 without any obstacle. As described above, in this embodiment mode, except that the claws 18, 34, and 35 claws 38, 38 added to the first to third embodiment modes are used, the configuration similar to the first to third embodiment modes is basically maintained. And the accompanying roles. Therefore, needless to say, this embodiment can of course obtain the same effects as these embodiments. In addition, in the surface light source device 1 of this embodiment, the light guide plate 4 and the reflection plate 3 are supported by the reflecting mirror 12 to fix the same. In the difficult case of the frame 2, the claws 38 and 38 are fastened to the portion 37 beside the incident surface of the light guide plate 4 to prevent the light guide plate 4 from floating from the frame 2. The foregoing descriptions of the first to fourth embodiments are not intended to limit the fun of the present invention. However, regarding the above implementation mode ', the following points need to be paid attention to. (i) In each of the foregoing embodiments, the light from the exit surface 17 of the light guide plate 4 is diffused by the first light control member 7 to achieve uniform brightness distribution ------------- -------- ^ --------- (Please read the precautions on the back before filling out this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 11 312992 538264 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 V. Description of the invention (U), followed by the 2nd and 3rd light-control system. In particular, the fi members 8a, 8b change the direction of the ninth direction of the normal direction of the exit surface 17 of the plate 4 to increase the proportion of light obtained by effective illumination. It is well known that the light control members 8a and 8b are formed of a plurality of ridge members, and the prism row extends in a direction different from the light control members 8a and 8b by 90 degrees. The fourth light control member 9 is mainly used as a protective plate for preventing damage to the diaphragm of the light control member 8b. However, in order to achieve uniformity of the illumination light, the function of the diffuser plate is provided as necessary. However, such light control members and methods of use are just one example. For example, when the lower surface 28 of the light guide plate 4 is the same as the second surface of the second light control member 8a, the second light control member 8a may be omitted. Generally, such a surface light source device may be used. ^^ Various structures known in the past as the light guide plate 4 or the light control member? To 9's specific composition. (11) In the present invention, the claws 18, 34, 35, 38 for preventing the light guide plate 4 from floating from the bottom surface 15 of the frame 2 are not limited to the components shown in the foregoing embodiments. As long as the function is maintained, the shape, formation position, and number may be appropriately changed. (iii) In the aforementioned embodiment, there may be a case where a part whose brightness is changed due to interference between the light control members 7 to 9 and each of the claws 18 is not used for lighting. In addition, even if each of the light control members 7 to 9 has a portion where a change in brightness is caused by the interference of each of the claws 18, 34, 35, 38, it may not cause a problem in lighting. If this is the case, the Chinese paper standard (CNS) A4 (210x 297 mm) is not applicable to the paper size of the light control members 7 to 9 312992 -------- 1 ------- -(Please read the notes on the back before filling out this page) 538264 A7 V. Description of the invention (I3) It is also possible to form a notch 30. (iv) The cross-sectional shape of the light guide plate may be ^^. For example, it is also possible to use a leading board such as a guide with a substantially uniform thickness throughout. Alternatively, a light guide plate having another cross-sectional shape may be used. (5) Other Modified Embodiments Fig. 11 is a diagram showing an application example of the first embodiment. As shown in the figure, a notch portion is formed on the two corner portions of the first light control member 7 and the second light control member 8a of the special service member 8a so as not to interfere with the claws 18 and 18 of the frame 2. %, 30. In addition, a notch portion 30 is formed on a right corner portion of the third light control member in the figure. No gaps are formed in the two corner portions of the fourth light control member 9. On the other hand, the thickness T of the left claw 18 in the two corner portions of the frame 2 of the frame 2] 8 is as shown in FIG. 12 and forms two portions of the second light control members 7, 8a. The thickness of the sheet light control member is the same. Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs With such a structure, the second light control member 8a and the third light control member which are difficult to distinguish during the assembly operation can be distinguished by the mark of the cutout portion. That is, the second light control member 8a and the third light control member are formed so that the direction of formation of the prism surface is 90 degrees different; however, since the formation pitch of the surface is extremely small, it is difficult to distinguish by the direction of formation of the surface. There may be a risk of reversing the assembly. However, as described above, if the second light control member 8a and the third light control member 8b are distinguished by the presence or absence of the notch portion 30, the order of the second light control member 8a and the third light control member can be prevented from being wrong. Causes poor assembly.
本紙張尺度適用中國國家標準（CNS〉A4現格⑵Q χ 297 _公餐了 312992 538264 B7 五、發明說明（U) 此外以缺口部30沾女&1 , _ _ 的有無，也可容易區別第 (請先閱讀背面之沒音》事項再填寫本頁) 件7與第4光控制構件卜尚且，第ι光控制構件^第2 光控制構件8a，如前述同樣形成缺口部3〇，然而兩者 狀有明顯的差異，從事面光源裝置i的組： 不可弄錯。 ”扑系員 依據如前述之應用例，不會弄錯第1至第4光控制構 件7至9’而可以正確的依序組裝。尚且，缺口部也可 以區別第i至第4光控制構件7至9之方式，適當有選擇 性的形成，而不限於前述型態β此外，爪18、18的厚度 ΤΙ、Τ2也可因應缺口部3〇的形成型態予以適當的變更 如上所述，本發明面光源裝置，其扣合於導光板出射 面側的爪形成於框架，由於可利用該爪抑制導光板由框架 浮起，故即使施加外力於面光源裝置，導光板也不會自框 架滑出，可防止因導光板自框架滑出所產生導光板的損 經濟部智慧財產局員工消費合作社印製 此外，關於在本發明面光源裝置上組裝畫像顯示面板 以構成畫像顯示裝置的中，如上所述，可利用形成於框架 的爪’來抑制導光板由框架浮起，使導光板不會自框架移 出，故不會產生畫像顯示裝置的組裝不良。 [圖面之簡單說明] 第1圖係表示本發明第1實施型態面光源裝置之分解 斜視圖。 第2圖係說明第1實施型態面光源裝置中，框架、反 射板及導光板的組裝情況之斜視圖。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） 14 312992 538264 • A7 _ B7 •五、發明說明（I5) 第3圖係沿著第2圖的線A-A之剖視圖。 第4圖係表示第1實施型態面光源裝置之俯視圖。 第5圖係沿著第4圖的線B-B之縱剖視圖。 第ό圖係表示本發明第2實施型態面光源裝置之俯視 圖。 第7圖係沿著第6圖的線C-C之剖視圖。 第8圖係表示本發明第3實施型態面光源裝置之俯視 第9圖係沿著第8圖的線D-D之剖視圖。 第10圖係表示作為本發明第4實施型態的3個變形例 之面光源裝置的俯視圖，（a)為第1實施型態的變形例，（b) 為第2實施型態的變形例，（c)為第3實施型態的變形例。 第11圖係說明本發明第1應用例之面光源裝置的第i 至第4光控制構件的組裝狀態之圖。 第12圖係在第11圖面光源裝置的框架的兩個隅角部 |►上所形成的爪之剖視圖，（a)係表示沿著第11圖的線A1-A1之剖面，（b)係表示沿著第11圖的線A2-A2之剖面。 第13圖係以往之面光源裝置的分解斜視圖。 第14圖係表示第13圖中以往之面光源裝置之俯視 圖。 第15圖係沿者第12圖的線E - E之縱剖視圖。 第16圖係說明在以往面光源裝置中，不良的發生狀態 之俯視圖。 第17圖係沿著第14圖的線F_F之剖視圖。 --------------裝—— (請先閱讀背面之注意事項再填寫本頁) · •線 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 x 297公釐） 15 312992 538264 A7 B7 五、發明說明（ι〇 [元件符號之說明] I、 100面光源裝置 3、102反射板 5 畫像顯示面板 7至9、105至107光控制構件 II、 110螢光燈（一次光源） 13、115導光板收容部 15、114底面 17 出射面 20 、 21 、 22 ' 28 Φ 24 隅角部 26、27側面 31、113膠帶 33 反射鏡固定部 2、101框架 4、103導光板 6 畫像顯示裝置 10、108入射面 12、111反射鏡 14、116畫像顯示面板收容部 16 末端面(入射面與相反側的侧面) 18、34、35、38 爪 23 孔 25 空間 30 缺口部 32、112螺絲 36、37入射面旁邊部分 (請先閱讀背面之注意事項再填寫本頁) 訂---------線« 經濟部智慧財產局員工消費合作杜印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 x 297公釐） 16 312992This paper size applies to Chinese national standards (CNS> A4 is now Q χ 297 _ public meal 312992 538264 B7 V. Description of the invention (U) In addition, the presence of notch 30 with female & 1, _ _ can also be easily distinguished No. (please read the "Nothing on the back" first and then fill out this page) Part 7 and the 4th light control member, and the 1st light control member ^ the 2nd light control member 8a, form the notch 30 as described above, however There is a clear difference between the two shapes, and the group engaged in the surface light source device i cannot be mistaken. According to the application example described above, the flutter system member can correct the first to fourth light control members 7 to 9 'without mistake. In addition, the notch portion can also be distinguished from the i-th to the fourth light control members 7 to 9 in a manner that is appropriately and selectively formed, and is not limited to the aforementioned form β. In addition, the thicknesses of the claws 18 and 18, T2 can also be appropriately modified in accordance with the formation of the notch portion 30. As described above, in the surface light source device of the present invention, the claws that are engaged with the light guide plate exit surface side are formed in the frame. The frame floats, so even if external force is applied to the area light source The light guide plate will not slide out of the frame, which can prevent damage to the light guide plate caused by the light guide plate sliding out of the frame. It is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. In addition, the assembly of the image display panel on the surface light source device of the present invention In the configuration of the image display device, as described above, the claws' formed on the frame can be used to suppress the light guide plate from floating from the frame, so that the light guide plate does not move out of the frame, and therefore the assembly of the image display device does not occur. Brief description of the drawings] Fig. 1 is an exploded perspective view showing a surface light source device according to a first embodiment of the present invention. Fig. 2 is a diagram illustrating the assembly of a frame, a reflection plate, and a light guide plate in the surface light source device according to the first embodiment. The oblique view of the situation. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) 14 312992 538264 • A7 _ B7 • V. Description of the invention (I5) Figure 3 is along the line of Figure 2 AA sectional view. Fig. 4 is a plan view showing the surface light source device of the first embodiment. Fig. 5 is a longitudinal sectional view taken along the line BB of Fig. 4. The view is a surface light of the second embodiment of the present invention. Top view of the device. Fig. 7 is a cross-sectional view taken along line CC of Fig. 6. Fig. 8 is a plan view showing a surface light source device according to a third embodiment of the present invention. Fig. 9 is a cross-sectional view taken along line DD of Fig. 8. Fig. 10 is a plan view showing a surface light source device as three modification examples of the fourth embodiment of the present invention. (A) is a modification of the first embodiment, and (b) is a modification of the second embodiment. For example, (c) is a modification of the third embodiment. Fig. 11 is a diagram illustrating the assembly state of the i-th to fourth light control members of the surface light source device according to the first application example of the present invention. Fig. 12 is FIG. 11 is a cross-sectional view of the claws formed on the two corners of the frame of the surface light source device. (A) is a cross-section taken along line A1-A1 in FIG. 11 and (b) is a cross-sectional view taken along 11 is a cross section taken along line A2-A2. Fig. 13 is an exploded perspective view of a conventional surface light source device. Fig. 14 is a plan view showing a conventional surface light source device in Fig. 13; Fig. 15 is a longitudinal sectional view taken along line E-E of Fig. 12; Fig. 16 is a plan view illustrating a state of occurrence of a defect in a conventional surface light source device. Fig. 17 is a sectional view taken along line F_F of Fig. 14. -------------- Installation—— (Please read the notes on the back before filling this page) (CNS) A4 specifications (210 x 297 mm) 15 312992 538264 A7 B7 V. Description of the invention (ι〇 [Explanation of component symbols] I, 100 surface light source device 3, 102 Reflector 5 Image display panels 7 to 9, 105 To 107 light control member II, 110 fluorescent light (primary light source) 13, 115 light guide plate receiving portion 15, 114 bottom surface 17 exit surface 20, 21, 22 '28 Φ 24 corner portion 26, 27 side 31, 113 tape 33 Mirror fixing portion 2, 101 frame 4, 103 light guide plate 6 Image display device 10, 108 incident surface 12, 111 mirror 14, 116 image display panel accommodation portion 16 distal surface (incident surface and opposite side surface) 18, 34 , 35, 38 Claw 23 Hole 25 Space 30 Notch 32, 112 Screw 36, 37 Next to the entrance surface (please read the precautions on the back before filling this page) Order --------- line «Ministry of Economy The Intellectual Property Bureau staff consumer cooperation Du printed paper size applicable to China National Standard (CNS) A4 regulations Grid (210 x 297 mm) 16 312992