M352718 八、新型說明： 【新型所屬之技術領域】 本新型是有關於一種鍵盤裝置，特別是指一種亮度均 勻之發光鍵盤裝置。 ϋ & 【先前技術】 目前筆記型電腦之鍵盤或手機之按鍵均採用薄型按鍵 結構，此種薄型按鍵結構雖然具有體積超薄、重量輕巧及 操作精確等優點，且為了方便使用者即使在光線昏暗的環 境下仍能操作鍵盤或按鍵’因此相關業者研發出提供辅助 照明之設計，例如：我國公告第516671號「具均勻背光之 輸入鍵盤」、公告第587800號「具有背光模組之鍵盤」、證 書號Μ306689「鍵盤之導光板及背光模組」、證書號 M330513「鍵盤發光結構」等新型專利案。 以我國證書號Μ330513「鍵盤發光結構」新型專利案為 例，參閱圖卜其主要是將發光元件u設置於按鍵組12 — 側’按鍵組12下方設有多數片導光板13,導光板13底面 並設有反射片（即鋁板）14,使得發光元件u之光線水平投 射後，可經反射片14之反射，由導光板13射出後，可^ 透按鍵組12之透光區域。然而因按鍵組12之各按鍵與發 光元件11間的距離不同，造成各按鍵的透光亮度不同 至有亮度不足之缺點。 【新型内容】 因此，本新型之目的，即在提供一種光線亮度均勻的 發光鍵盤裝置。 M352718 於是’本新型發光鍵盤裝置，包括有： 一按鍵組單元’包含有多數個按鍵，以及一與各該按 鍵電性連接的薄膜電路板，該薄膜電路板具有一薄膜底層 、一位於該薄膜底層上之薄膜中間層，及一位於該薄膜中 間層上之薄膜頂層，該薄膜底層的頂面上凸設有多數個反 射導光點；以及 一發光單元，包含有一個以上設於該薄膜電路板之該 薄膜底層下方的發光元件，該等發光元件並向上貫穿該薄 膜底層與該薄膜中間層，使得該等發光元件所發出的光線 可在該等反射導光點的反射作用下向上發散。 本新型所能達成之功效在於發光元件所發出的光線可 在反射導光點的反射作用下向上均勻發散。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一較佳實施例的詳細說明中，將可清 楚的呈現。 參閱圖2、3，是本新型發光鍵盤裝置2的一較佳實施 例，鍵盤裝置2包括有一按鍵組單元3，以及—發光單元4 。按鍵組單元3包含有一框板31、多數個設於框板31上之 按鍵32、多數個彈性元件33,以及一與各按鍵3ι電性連 接的薄膜電路板34。框板31為一金屬板體，框板31上對 應各按鍵32預設位置處沖設成型有多數個承接槽Μ〗，以 及多數個穿孔312。而各按鍵32則具有多數個佈設於框板 31上的架橋321，以及多數個組設於各架橋321上之鍵帽 M352718 322，由於該等架橋321、該等鍵帽322與框板31間的連接 關係屬習知結構，故於此不予贅述。至於彈性元件33底面 凸設有一凸柱（圖未示）。 仍請參閱圖2、3，所述薄膜電路板34具有一薄膜底層 (membrance bottom layer)341、一位於薄膜底層 341 上之 薄膜中間層（membrance middle layer)342，及一位於薄膜 中間層342上之薄膜頂層（membrance top layer)343。定 義薄膜底層341與薄膜中間層342接觸之該表面為反射面 344，反射面344上凸設有多數個反射導光點345，該等反 射導光點345是由導光漆所構成，且該等反射導光點345 是設置於鄰近各按鍵32之架橋321處。該薄膜底層341與 該薄膜中間層342上對應於各發光元件41預設處分別設有 一開孔346、347。另外，薄膜電路板34之薄膜底層341上 對應各該彈性元件33的凸柱處分別設有一導接點348。此 外，特別說明的是，薄膜底層341、薄膜中間層342，及薄 膜頂層343均是由導光性佳的材質如聚碳酸酯（pc)或壓克 力（PMMA)等所製成。而各該鍵帽322可以是由透光材質所 製成，以增加透光效果。 仍凊參閱圖2、3,本新型發光鍵盤裝置2還包括有一 設於薄膜電路板34與框板31間之彈性貼# 35。前述該等 彈性元件33是設置於架橋321與彈性貼片35之間，彈性 元件33的一端貫穿架橋321且頂掣於鍵帽322底面，另一 端則貼觸彈性貼片35，且其凸柱並穿出彈性貼片35外藉 此田鍵t目322受到按麗時’同時連動架橋321 $迫相對應 M352718 的彈性元件33之凸柱向下頂觸以導接相對應的導接點348 ，以構成電性導通迴路。 ♦ 參閱圖3、4，所述發光單元4包含有一設於框板31底 • 面之撓性電路板41，以及一個以上分散地佈設於該撓性電 路板41上之發光元件42。該等發光元件42均為發光二極 體，且較佳的佈設方式是將該等發光元件41定位於薄膜電 - 路板34的薄膜頂層343底面四個角落處，且該等發光元件 42並向上貫穿框板31上的相對應的穿孔312，及薄膜電路 ® 板34之薄膜底層341、薄膜中間層342上相對應的開孔 346、347。 參閱圖4、5，薄膜電路板34之薄膜底層341、薄膜中 間層342及薄膜頂層343組合一體後的厚度仍為一薄片體 ，因此，穿置於薄膜底層341、薄膜中間層342上相對應的 開孔346、347間的該等發光元件42所發出的水平投射光 線才又射到3亥專反射導光點345後，該等反射導光點345會 _ 進一步將光線反射而向上均勻發散。 如上述，本新型發光鍵盤裝置2藉由位於框板31下方 之撓性電路板43上分散設置一個以上的發光元件42，發光 ' 元件42並向上貫穿框板31、薄膜底層341、薄膜中間層 342，配合薄膜底層341上凸設有多數個反射導光點345， 使得發光元件42所發出的光線可在該等反射導光點345的 反射下均勻地向上發散，所以確實能達到上述本新型所欲 達到之目的及功效。 惟以上所述者，僅為本新型之較佳實施例而已，當不 M352718 能以此限定本新型實施之範圍，即大凡依本新型申請專利 範圍及新型說明内容所作之簡單的等效變化與修飾，皆應 仍屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 圖1是我國證書號M330513「鍵盤發光結構」新型專利 案之局部剖視圖； 圖2是本新型發光鍵盤裝置一較佳實施例之分解圖； 圖3是該較佳實施例之局部放大分解圖； 圖4是該較實施例之組合剖視圖；及 圖5是該較佳實施例之組合剖視局部放大圖，說明發 光元件所產生的光線受到反射導光點的反射作用。 M352718 【主要元件符號說明】 2鍵盤裝置 3按鍵組單元 4發光單元 31框板 32按鍵 33彈性元件 34薄膜電路板 35彈性貼片 41撓性電路板 42發光元件 311承接槽 312穿孔 321架橋 322鍵帽 341薄膜底層 342薄膜中間層 343薄膜頂層 344反射面 345反射導光點 346、347 開孔 348導接點M352718 VIII. New description: [New technical field] The present invention relates to a keyboard device, in particular to an illuminated keyboard device with uniform brightness. ϋ & [Prior Art] At present, the keys of the keyboard or mobile phone of the notebook computer adopt a thin button structure. The thin button structure has the advantages of ultra-thin volume, light weight and precise operation, and is convenient for the user even in the light. The keyboard or buttons can still be operated in a dim environment. Therefore, the relevant manufacturers have developed a design that provides auxiliary lighting. For example, China Bulletin No. 516671 "Input Keyboard with Uniform Backlight", Announcement No. 587800 "Keyboard with Backlight Module" New patent cases such as certificate number 306689 "Light guide plate and backlight module for keyboard" and certificate number M330513 "Keyboard illumination structure". Taking the new patent case of China's certificate number 513330513 "keyboard lighting structure" as an example, refer to the figure, which mainly sets the light-emitting element u to the button group 12 - the side of the button group 12 is provided with a plurality of light guide plates 13 and the bottom surface of the light guide plate 13 A reflection sheet (ie, an aluminum plate) 14 is disposed, so that the light of the light-emitting element u is horizontally projected, and can be reflected by the reflection sheet 14 and emitted from the light guide plate 13 to pass through the light-transmitting area of the button group 12. However, because the distance between each button of the button group 12 and the light-emitting element 11 is different, the light-transmitting brightness of each button is different to the disadvantage of insufficient brightness. [New content] Therefore, the object of the present invention is to provide an illuminated keyboard device with uniform brightness of light. M352718 Thus, the novel illuminated keyboard device comprises: a button group unit comprising a plurality of buttons, and a film circuit board electrically connected to each of the buttons, the film circuit board having a film bottom layer and a film on the film a thin film intermediate layer on the bottom layer, and a film top layer on the intermediate layer of the film, a plurality of reflective light guiding points are protruded from a top surface of the film bottom layer; and a light emitting unit includes one or more thin film circuits The light-emitting elements below the bottom layer of the film, the light-emitting elements extend upward through the film bottom layer and the film intermediate layer, so that the light emitted by the light-emitting elements can be diverged upward by the reflection of the reflective light-guiding points. The effect achieved by the novel is that the light emitted by the light-emitting element can be uniformly radiated upwards under the reflection of the reflected light guiding point. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. Referring to Figures 2 and 3, a preferred embodiment of the present illuminated keyboard apparatus 2 includes a button unit 3 and a lighting unit 4. The button unit 3 includes a frame plate 31, a plurality of buttons 32 disposed on the frame plate 31, a plurality of elastic members 33, and a film circuit board 34 electrically connected to the buttons 3ι. The frame plate 31 is a metal plate body, and a plurality of receiving grooves and a plurality of perforations 312 are formed on the frame plate 31 at predetermined positions corresponding to the respective buttons 32. Each of the buttons 32 has a plurality of bridges 321 disposed on the frame plate 31, and a plurality of key caps M352718 322 disposed on each of the bridges 321 , due to the bridges 321 , the key caps 322 and the frame plates 31 . The connection relationship is a conventional structure and therefore will not be described here. As for the bottom surface of the elastic member 33, a protrusion (not shown) is protruded from the bottom surface. Still referring to FIGS. 2 and 3, the thin film circuit board 34 has a membrance bottom layer 341, a membrance middle layer 342 on the film bottom layer 341, and a film intermediate layer 342. A membrance top layer 343. The surface of the film bottom layer 341 that is in contact with the film intermediate layer 342 is a reflecting surface 344. The reflecting surface 344 is convexly provided with a plurality of reflecting light guiding points 345, and the reflecting light guiding points 345 are formed by a light guiding varnish. The isolating light guiding spot 345 is disposed at the bridge 321 adjacent to each of the keys 32. The film bottom layer 341 and the film intermediate layer 342 are respectively provided with openings 346, 347 corresponding to the preset portions of the respective light-emitting elements 41. In addition, a guiding contact 348 is respectively disposed on the film bottom layer 341 of the film circuit board 34 corresponding to each of the protrusions of the elastic member 33. Further, it is specifically noted that the film underlayer 341, the film intermediate layer 342, and the film top layer 343 are all made of a material having good light guiding properties such as polycarbonate (PM) or acrylic (PMMA). Each of the keycaps 322 may be made of a light transmissive material to increase the light transmission effect. Still referring to Figs. 2 and 3, the illuminating keyboard device 2 of the present invention further includes a resilient sticker #35 disposed between the film circuit board 34 and the frame plate 31. The elastic member 33 is disposed between the bridge 321 and the elastic patch 35. One end of the elastic member 33 passes through the bridge 321 and is mounted on the bottom surface of the key cap 322, and the other end is in contact with the elastic patch 35, and the protruding post thereof And the elastic patch 35 is worn out, and the field button t 322 is subjected to the contact point 348 of the elastic member 33 of the M352718 corresponding to the sleek bridge 321 To form an electrical conduction loop. ♦ Referring to Figures 3 and 4, the light-emitting unit 4 includes a flexible circuit board 41 disposed on the bottom surface of the frame plate 31, and one or more light-emitting elements 42 dispersedly disposed on the flexible circuit board 41. The light-emitting elements 42 are all light-emitting diodes, and are preferably arranged such that the light-emitting elements 41 are positioned at four corners of the bottom surface of the film top layer 343 of the thin-film electrical circuit board 34, and the light-emitting elements 42 are The corresponding through holes 312 on the frame plate 31 and the film bottom layer 341 of the film circuit board 34 and the corresponding openings 346, 347 on the film intermediate layer 342 are formed upward. Referring to FIGS. 4 and 5, the thickness of the film bottom layer 341, the film intermediate layer 342 and the film top layer 343 of the film circuit board 34 is still a sheet. Therefore, the film is placed on the film bottom layer 341 and the film intermediate layer 342. After the horizontal projection light emitted by the light-emitting elements 42 between the openings 346 and 347 is again incident on the 3H-reflecting light-guiding point 345, the reflected light-guiding points 345 will further reflect the light and evenly diverge upward. . As described above, the illuminating keyboard device 2 of the present invention has one or more light-emitting elements 42 dispersedly disposed on the flexible circuit board 43 below the frame plate 31, and illuminates the element 42 upwardly through the frame plate 31, the film bottom layer 341, and the film intermediate layer. 342, a plurality of reflective light guiding points 345 are convexly disposed on the bottom layer 341 of the film, so that the light emitted by the light emitting element 42 can be uniformly radiated upward under the reflection of the reflective light guiding points 345, so that the present invention can be achieved. The purpose and effect that you want to achieve. However, the above is only a preferred embodiment of the present invention, and when M352718 can limit the scope of the present invention, it is a simple equivalent change made by the scope of the new patent application and the new description. Modifications shall remain within the scope of this new patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional view showing a novel patent of the "keyboard illumination structure" of the certificate No. M330513; FIG. 2 is an exploded view of a preferred embodiment of the illumination keyboard device of the present invention; 4 is a combined cross-sectional view of the comparative embodiment; and FIG. 5 is a partial enlarged cross-sectional view of the preferred embodiment of the preferred embodiment, illustrating that the light generated by the illuminating element is reflected by the reflected light guiding point. M352718 [Main component symbol description] 2 keyboard device 3 button group unit 4 light unit 31 frame plate 32 button 33 elastic member 34 film circuit board 35 elastic patch 41 flexible circuit board 42 light-emitting element 311 receiving groove 312 perforation 321 bridge 322 key Cap 341 film bottom layer 342 film intermediate layer 343 film top layer 344 reflecting surface 345 reflecting light guiding points 346, 347 opening 348 guiding point
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