200935477 九、發明說明： 【發明所屬之技術領域】 本發明係為一種背光按鍵結構，尤其是有關於—種利 用導光板上之破孔配合電路板或背光板上之突出部進行組 合以薄化鍵盤之背光按鍵結構。 ^ 【先前技術】 電腦迅速地被廣泛使用後，其功能也日新月異，因電 ❹腦有可能在光線不足的環境下使用，遂有可自行發光的鍵 盤被提出。 x ' 隨著科技的進展，各式各樣的發光元件應用在顯示、 裝飾、照明等方面，除了如何增進發光元件的發光效率之 外。如何使其亮度均勻且使鍵盤更為輕薄是研發人 的目標。 刀 習知之鍵盤通常是將光源放置在各鍵帽下方之底板 ❹ 上’使光源直接從下往上照射鍵帽。或者有些鍵盤是利用 光源加上導光件’將光源設置在導光元件之鄰近處，利 用導光it件引導光線至各鍵帽，而*需要在各個鍵帽下方 設置光源。 圖一 A所不者為一種習知發光鍵盤，此類的發光鍵盤 10包括一鍵帽12、一剪刀式結構13、一彈性元件丨4、一 彈性薄膜14a、—薄膜電路板15、一間隔層16、一導光元 件17、以及複數個光源19，光源19係設置於導光元件 附近。其中在實際鍵盤中，彈性薄膜14a、薄膜電路板15、 問隔層16以及導光元件17應該是—整層，此圖僅顯示導 6 200935477 光元件17較大，其他元件只顯示鍵帽12下方的一部分以 便突顯習知之導光元件17。 圖一 B則顯示光線之光路，導光元件17下方有一反光 圖案18，當光源19發射光線進入導光元件17後’ 一部分 光線折射至鍵帽12，另一部分則經由反光圖案反射至鍵帽 12，使光線均勻照射於鍵帽12上。一般而言’現在的電子 產品如筆記型電腦之鍵盤。已有越來越往輕薄短小發展之 趨勢。因此當發光鍵盤10應用於此類電子產品中時。亟需 ® 達到此等輕薄之特性，亦即可將導光元件盡量薄型化以達 到上述要求。然而光源通常都具有一定厚度，當光源配置 在薄形導光元件之一端時，離光源越遠的部分之光線漸漸 損失，使得光源之光線無法完全利用’因此習知之導光元 件之厚度必須夠厚才能傳遞足夠之光線，但如此將增加鍵 盤的厚度。再者，習知鍵盤需要使用更多的光源於導光元 件之附近，才能使發光鍵盤具有足夠之亮度，然而，太多 的光源所需的能源更大，尤其筆記型電腦之能源消耗量要 ❿ 越小越好。另外，在不同區域之發光鍵盤之亮度會不均勻。 緣此，本案之發明人係研究出一種背光按鍵結構，其 不只使鍵盤厚度變薄，減少能源且更能使亮度更均勻，而 且只在需要發光的部位發光。 【發明内容】 本發明之主要目的係為提供一種背光按鍵結構，其係 利用裝置於按鍵總成下方之發光裝置來達成按鍵發光之目 的0 7 200935477 為達上述目的，本發明係提供一種背光按鍵結構，包 3 知7鍵總成及设置於該按鍵總成下方之一發光裝置，該 按鍵總成包括··一鍵帽；一底板，設置於該鍵帽之下方； 一支撐結構，設置於該鍵帽與該底板之間，且分別與該鍵 中a與該底板相連接，使得該鍵帽可相對該底板做上下運 動，及一電路板，設置於該底板上；該發光裝置包括：一 遮光層，設置於該按鍵總成之下；一導光板，設置於該遮 光層之下；及一反射層，設置於該導光板之下；其中，該 遮^層與該反射層中之一者係設有突出部，另一者則對應 該突出部設有黏著劑，該導光板於對應該突出部處設有破 孔；當遮光層、導光板與反光板依序推疊時，該突出部係 通過該破孔而與黏著劑接合。 又為達上述目的，本發明更提供一種背光按鍵結構， 包含一按鍵總成及設置於該按鍵總成下方之一發光裝置， 。玄按鍵總成包括.一鍵帽；一底板，設置於該鍵帽之下方； 一支撐結構，設置於該鍵帽與該底板之間，且分別與該鍵 巾自與该底板相連接，使得該鍵帽可相對該底板做上下運 動，及一電路板，設置於該底板上；該發光裝置包括：一 遮光層，設置於該按鍵總成之下；一導光板，設置於該遮 光層之下；及一反射層，設置於該導光板之下；其中，該 底板與該反射層中之一者係設有突出部，另一者則對應該 犬出部設有黏著劑’該遮光層與該導光板於對應該突出部 處攻有破孔；當該底板、遮光層、導光板與反射層依序推 疊時’該突出部係通過該等破孔而與黏著劑接合。 又為達上述目的，本發明更提供一種背光按鍵結構， 8 200935477 包含一按鍵總成及設置於該按鍵總成下方之一發光裝置， 該按鍵總成包括：一鍵帽；一底板，設置於該鍵帽之下方； 一支撐結構，設置於該鍵帽與該底板之間，且分別與該鍵 帽與該底板相連接，使得該鍵帽可相對該底板做上下運 動；及一電路板，設置於該底板上；該發光裝置包括：一 導光板，S交置於該底板之下；及一反射層，設置於該導光 板之下，其中，該底板與該反射層中之一者係設有突出部， 另一者則對應該突出部設有黏著劑，該導光板於對應該突 出部處設有破孔；當該底板、導光板與反射層依序推疊時， 該突出部係通過該等破孔而與黏著劑接合。 為使貴審查委員對於本發明之結構目的和功效有更 進一步之了解與認同，茲配合圖示詳細說明如後。 【實施方式】 以下將參照隨附之圖式來描述本發明為達成目的所使 用的技術手段與功效，而以下圖式所列舉之實施例僅為辅 ❹助說明，以利貴審查委員瞭解，但本案之技術手段並不限 於所列舉圖式。 請參見圖二A及圖二B，其係分別為本發明背光按鍵 結構之立體分解圖及側視圖，其中圖二B為了便於示意， 係省略部分元件；其中，背光按鍵結構2包含一按鍵總成 20及設置於該按鍵總成20下方之發光裝置22。 s亥按鍵總成20依序包括一鍵帽200、一剪刀腳型支樓 結構202、一電路板204以及一底板206;其中該剪刀腳型 支撐結構202係由一第一支架2020與一第二支架2022樞 200935477 接組成’且該剪刀腳型支撐結構202係分別與鍵帽200與 電路板204樞接，使得鍵帽2〇〇可相對於電路板204進行 特定行程之移動；又該剪刀腳型支撐結構202係開有一通 孔2024 ’ 一彈性體208係設置於該鍵帽200與電路板204 之間且穿過該通孔2024 ’如此當鍵帽200相對於電路板204 進行移動時’可藉由該彈性體208對該電路板204進行開 關之觸動’且藉由該彈性體208被擠壓後之回復力亦能使 得鍵帽200回到原本之位置。 ® 該發光裝置22依序包括一遮光層220、一導光板222 以及一反射層224 ;導光板222用於發光，遮光層220則 用於遮擋不需要之光，例如為印有不透光圖形之塑膠薄 片，且該遮光層220於面對導光板222之一面設有若干個 突出部2200，該導光板222相對於該等突出部2200處則 設有相對應之破孔2220，該反射層224相對於該等突出部 2200處則設有相對應之黏著劑2240;如此，當遮光層220、 導光板222與反光板224依序推疊時，該等突出部2200係 © 通過破孔2220與黏著劑2240接合。 此外，該遮光層220與底板206之間更以一黏著劑2202 進行貼合，於圖二A之實施例中，黏著劑2202係塗佈於 遮光層220面對底板206之一面上；當然，該黏著劑2202 亦可塗佈於底板206面對於遮光層220之一面上，而於圖 二B中，為便於示意’該彈性體208與黏著劑2202係省略。 再請參照圖三，該圖係為本發明背光按鍵結構之側視 圖，其係顯示一變化實施例。於圖三中，背光按鍵結構3 包含一按鍵總成30及設置於該按鍵總成30下方之發光裝 10 200935477 置32。 類似於圖二B，於圖三中，按鍵總成30依序包括一鍵 帽300、一剪刀腳型支撐結構3〇2、一電路板3〇4以及一底 板306，且該發光襞置32依序包括一遮光層32〇、一導光 板322以及一反射層324 ;不同於圖二B的是，圖三之底 板306係於面對遮光層320之一面設有若干個突出部 3060 ’該遮光層320與導光板322相對於該等突出部3060 處則分別設有相對應之破孔3200與破孔3220，該反射層 324相對於該等突出部3060處則設有相對應之黏著劑 3240 ;如此，當底板306、遮光層320、導光板322與反光 板324依序推疊時’該等突出部3〇6〇係依序通過破孔32〇〇 與破孔3220而與黏著劑3240接合。 再請參照圖四’該圖係為本發明背光按鍵結構之側視 圖，其係顯示另一變化實施例。於圖四中，背光按鍵結構 4包含一按鍵總成40及設置於該按鍵總成4〇下方之發光 裝置42。200935477 IX. Description of the Invention: [Technical Field] The present invention relates to a backlight button structure, and more particularly to a combination of a hole on a light guide plate and a protruding portion on a backlight board for thinning Backlit key structure of the keyboard. ^ [Prior Art] When the computer is widely used rapidly, its functions are also changing with each passing day. Because the electric brain can be used in a low-light environment, a keyboard that emits light by itself can be presented. x ' With the advancement of technology, a wide variety of light-emitting components are used in display, decoration, lighting, etc., in addition to how to improve the luminous efficiency of the light-emitting elements. How to make it even and make the keyboard thinner is the goal of the developer. The keyboard of the conventional tool is usually placed on the bottom plate 下方 under the keycaps to cause the light source to directly illuminate the keycap from bottom to top. Or some keyboards use a light source plus a light guide to place the light source in the vicinity of the light guiding element, and use the light guiding piece to guide the light to the key caps, and * need to set the light source under each key cap. FIG. 1A is a conventional illuminated keyboard. The illuminated keyboard 10 includes a keycap 12, a scissor structure 13, an elastic member 丨4, an elastic film 14a, a thin film circuit board 15, and a space. The layer 16, a light guiding element 17, and a plurality of light sources 19 are disposed in the vicinity of the light guiding element. In the actual keyboard, the elastic film 14a, the film circuit board 15, the spacer layer 16, and the light guiding element 17 should be a whole layer, and this figure only shows that the light element 17 is large, and the other elements only display the key cap 12 A portion below is used to highlight the conventional light guiding element 17. FIG. 1B shows the light path of the light. The light guiding element 17 has a reflective pattern 18 underneath. When the light source 19 emits light into the light guiding element 17, a part of the light is refracted to the keycap 12, and the other part is reflected to the keycap 12 via the reflective pattern. The light is evenly irradiated onto the keycap 12. In general, the current electronic products are keyboards for notebook computers. There has been a trend towards more light, thin and short development. Therefore, when the illuminated keyboard 10 is used in such an electronic product. In order to achieve these thin and light characteristics, the light guiding elements can be as thin as possible to meet the above requirements. However, the light source usually has a certain thickness. When the light source is disposed at one end of the thin light guiding element, the light of the portion farther from the light source is gradually lost, so that the light of the light source cannot be fully utilized. Therefore, the thickness of the conventional light guiding element must be sufficient. Thick enough to deliver enough light, but this will increase the thickness of the keyboard. Moreover, the conventional keyboard needs to use more light sources in the vicinity of the light guiding elements, so that the illuminated keyboard has sufficient brightness. However, too many light sources require more energy, especially the energy consumption of the notebook computer.越 The smaller the better. In addition, the brightness of the illuminated keyboard in different areas may be uneven. Accordingly, the inventors of the present invention have developed a backlight button structure that not only thins the thickness of the keyboard, but also reduces energy and more uniform brightness, and emits light only at a portion where illumination is required. SUMMARY OF THE INVENTION The main object of the present invention is to provide a backlight button structure, which utilizes a light-emitting device disposed under the button assembly to achieve the purpose of button illumination. 0 7 200935477 To achieve the above object, the present invention provides a backlight button. Structure, package 3 knows a 7-key assembly and a light-emitting device disposed under the button assembly, the button assembly includes a keycap; a bottom plate disposed under the keycap; a support structure disposed on Between the keycap and the bottom plate, and the key a is connected to the bottom plate, respectively, so that the key cap can move up and down relative to the bottom plate, and a circuit board is disposed on the bottom plate; the light emitting device comprises: a light shielding layer disposed under the button assembly; a light guide plate disposed under the light shielding layer; and a reflective layer disposed under the light guide plate; wherein the shielding layer and the reflective layer One is provided with a protruding portion, and the other is provided with an adhesive corresponding to the protruding portion, and the light guiding plate is provided with a broken hole at the corresponding protruding portion; when the light shielding layer, the light guiding plate and the reflecting plate are sequentially pushed, The highlight System is engaged with the through hole on the adhesive. In order to achieve the above object, the present invention further provides a backlight button structure, comprising a button assembly and a light-emitting device disposed under the button assembly. The key button assembly includes a key cap; a bottom plate disposed under the key cap; a support structure disposed between the key cap and the bottom plate, and respectively connected to the key towel from the bottom plate The keycap is movable up and down with respect to the bottom plate, and a circuit board is disposed on the bottom plate; the light emitting device comprises: a light shielding layer disposed under the button assembly; and a light guide plate disposed on the light shielding layer And a reflective layer disposed under the light guide plate; wherein one of the bottom plate and the reflective layer is provided with a protruding portion, and the other is provided with an adhesive agent corresponding to the canine portion And the light guide plate has a hole at the corresponding protruding portion; when the bottom plate, the light shielding layer, the light guide plate and the reflective layer are sequentially pushed, the protruding portion is engaged with the adhesive through the holes. In order to achieve the above object, the present invention further provides a backlight button structure, 8 200935477 includes a button assembly and a light-emitting device disposed under the button assembly, the button assembly includes: a key cap; a bottom plate disposed on a support structure is disposed between the keycap and the bottom plate, and is respectively connected to the bottom plate and the bottom plate, so that the key cap can move up and down relative to the bottom plate; and a circuit board, The light-emitting device comprises: a light guide plate, S is placed under the bottom plate; and a reflective layer is disposed under the light guide plate, wherein the bottom plate and one of the reflective layers are The protrusion is provided, and the other is provided with an adhesive corresponding to the protrusion, and the light guide plate is provided with a hole at the corresponding protrusion; when the bottom plate, the light guide plate and the reflective layer are sequentially pushed, the protrusion is The adhesive is bonded to the adhesive through the holes. In order to enable the reviewing committee to have a better understanding and approval of the structural purpose and efficacy of the present invention, the detailed description is as follows. [Embodiment] Hereinafter, the technical means and effects of the present invention for achieving the object will be described with reference to the accompanying drawings, and the embodiments listed in the following drawings are only supplementary explanations, so that the reviewers can understand, but The technical means of this case are not limited to the illustrated figures. Please refer to FIG. 2A and FIG. 2B, which are respectively an exploded perspective view and a side view of the backlight button structure of the present invention, wherein FIG. 2B omits some components for convenience of illustration; wherein the backlight button structure 2 includes a button total The light emitting device 22 is disposed at 20 and below the button assembly 20. The s-key button assembly 20 includes a keycap 200, a scissor-type branch structure 202, a circuit board 204, and a bottom plate 206. The scissor-type support structure 202 is composed of a first bracket 2020 and a first The two brackets 2022 pivot 200935477 are connected to form 'and the scissors foot support structure 202 is pivotally connected with the keycap 200 and the circuit board 204 respectively, so that the keycap 2 can be moved with respect to the circuit board 204 for a specific stroke; The foot support structure 202 is fastened with a through hole 2024 ′. An elastic body 208 is disposed between the key cap 200 and the circuit board 204 and passes through the through hole 2024 ′ such that when the key cap 200 moves relative to the circuit board 204 'The touch of the circuit board 204 can be switched by the elastic body 208' and the restoring force by the elastic body 208 can also return the keycap 200 to its original position. The light-emitting device 22 includes a light-shielding layer 220, a light guide plate 222 and a reflective layer 224 in sequence; the light guide plate 222 is used for light-emitting, and the light-shielding layer 220 is used to block unnecessary light, for example, an opaque pattern is printed. a plurality of protrusions 2200 are disposed on a surface of the light shielding layer 222 facing the light guide plate 222. The light guide plate 222 is provided with a corresponding hole 2220 opposite to the protrusions 2200. 224 is provided with a corresponding adhesive 2240 relative to the protrusions 2200; thus, when the light shielding layer 220, the light guide plate 222 and the light reflecting plate 224 are sequentially pushed, the protruding portions 2200 are passed through the broken holes 2220. Engaged with adhesive 2240. In addition, the light shielding layer 220 and the bottom plate 206 are further adhered by an adhesive 2202. In the embodiment of FIG. 2A, the adhesive 2202 is applied to one side of the light shielding layer 220 facing the bottom plate 206; The adhesive 2202 may also be applied to one side of the bottom plate 206 to one side of the light shielding layer 220, and in FIG. 2B, the elastic body 208 and the adhesive 2202 are omitted for convenience of illustration. Referring again to Figure 3, which is a side elevational view of the backlight button structure of the present invention, showing a variation of the embodiment. In FIG. 3, the backlight button structure 3 includes a button assembly 30 and a light-emitting device 10 200935477 disposed 32 below the button assembly 30. Similar to FIG. 2B, in FIG. 3, the button assembly 30 sequentially includes a keycap 300, a scissor-type support structure 3〇2, a circuit board 3〇4, and a bottom plate 306, and the light-emitting device 32 The light shielding layer 32 〇, a light guide plate 322 and a reflective layer 324 are sequentially included; unlike the second embodiment, the bottom plate 306 of FIG. 3 is provided with a plurality of protrusions 3060 ′ on one side of the light shielding layer 320. The light shielding layer 320 and the light guide plate 322 are respectively provided with corresponding holes 3200 and broken holes 3220 at the protruding portions 3060, and the reflective layer 324 is provided with corresponding adhesives at the protruding portions 3060. 3240. When the bottom plate 306, the light shielding layer 320, the light guide plate 322 and the light reflecting plate 324 are sequentially stacked, the protrusions 3〇6 are sequentially passed through the holes 32 and the holes 3220 and the adhesive. 3240 joint. Referring again to Figure 4, this figure is a side view of the backlight button structure of the present invention, which shows another variation. In FIG. 4, the backlight button structure 4 includes a button assembly 40 and a light-emitting device 42 disposed below the button assembly 4.
Q 類似於圖二，於圖四中，按鍵總成4〇依序包括一鍵帽 400、一剪刀腳型支撐結構4〇2、一電路板4〇4以及一底板 406;不同於圖三B的是’該發光裝置仏僅包括一導光板 422以及一反射層424(並無使用遮光層其中該底板4〇6 係於面對導光板422之一面設有若干個突出部4〇6〇，該導 光板422相對於該等突出部4〇6〇處則設有相對應之破孔 4220’遠反射層424相對於該等突出部4〇6〇處則設有相對 應之黏著劑4240 ;如此’當底板4〇6、導光板422與反光 板424依序推豎時’該等突出部4〇6〇係通過破孔422〇而 200935477 與黏著劑4240接合。 如此，由於本發明背光按鍵結構係利用突出部穿過破 孔與黏著劑進行貼（黏）合，故不會因為多層黏貼而增加 背膠之厚度，因此可減少整體按鍵結構之厚度，且可簡化 模組架構並降低模組成本，為此技術領域中極具競爭力之 '產品。 唯以上所述者，僅為本發明之最佳實施態樣爾，當不 能以之限定本發明所實施之範圍。即大凡依本發明申請專 ® 利範圍所作之均等變化與修飾，皆應仍屬於本發明專利涵 蓋之範圍内，謹請貴審查委員明鑑，並祈惠准，是所至 禱。 【圖式簡單說明】 圖一 A係為習知背光按鍵結構之立體分解圖； 圖一B係為習知背光按鍵結構之側視圖； 圖二A係為本發明背光按鍵結構之立體分解圖； ❹ 圖二B係為本發明背光按鍵結構之側視圖； 圖三係為本發明背光按鍵結構之侧視圖，其係顯示另一實 施例；以及 圖四係為本發明背光按鍵結構之侧視圖，其係顯示另一實 施例。 【主要元件符號說明】 10-發光鍵盤 12-鍵帽 12 200935477 13 -剪刀式結構 14- 彈性元件 14a-彈性薄膜 15- 薄膜電路板 16- 間隔層 17- 導光元件 18- 反光圖案 19- 光源 ® 2-背光按鍵結構 20- 按鍵總成 22-發光裝置 200-鍵帽 202-剪刀腳型支撐結構 204-電路板 2 06-底板 208-彈性體 ❹ 220-遮光層 2 2 2 -導光板 224-反射層 2020-第一支架 2022-第二支架 2024-通孔 2200-突出部 2202-黏著劑 2220-破孔 200935477 2240-黏著劑 3 -背光按鍵結構 30-按鍵總成 32-發光裝置 300-鍵帽 302-剪刀腳型支撐結構 304-電路板 306-底板 ❹320-遮光層 322-導光板 324-反射層 3060-突出部 3200-破孔 3220-破孔 3240-黏著劑 4-背光按鍵結構 © 40-按鍵總成 42-發光裝置 400-鍵帽 402-剪刀腳型支撐結構 404-電路板 406-底板 422-導光板 424-反射層 4060-突出部 200935477 4220-破孔 4240-黏著劑Q is similar to FIG. 2, in FIG. 4, the button assembly 4〇 includes a keycap 400, a scissor-type support structure 4〇2, a circuit board 4〇4, and a bottom plate 406 in sequence; different from FIG. 3B. The illuminating device 仏 includes only a light guide plate 422 and a reflective layer 424 (the light shielding layer is not used, wherein the bottom plate 4 〇 6 is attached to one surface of the light guide plate 422 and has a plurality of protrusions 4 〇 6 〇, The light guide plate 422 is provided with corresponding holes 4220' with respect to the protrusions 4〇6〇. The far reflection layer 424 is provided with a corresponding adhesive 4240 relative to the protrusions 4〇6〇; Thus, when the bottom plate 4〇6, the light guide plate 422 and the light reflecting plate 424 are sequentially pushed up, the protrusions 4〇6 are joined to the adhesive 4240 through the holes 422〇 and 200935477. Thus, due to the backlight button of the present invention The structure utilizes the protrusions to pass through the holes and adhere to the adhesive, so that the thickness of the backing is not increased by the multi-layer adhesion, thereby reducing the thickness of the overall button structure, and simplifying the module structure and reducing the mold. Group cost, a highly competitive 'product' in this technical field. The present invention is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent changes and modifications made by the application of the present invention should still belong to the present invention. Within the scope of the patent, I would like to ask your review committee to give a clear explanation and pray for it. It is the prayer. [Simplified illustration] Figure 1A is an exploded view of the conventional backlight button structure; Figure 1B is a study 2 is a perspective exploded view of the backlight button structure of the present invention; ❹ FIG. 2B is a side view of the backlight button structure of the present invention; FIG. 3 is a side view of the backlight button structure of the present invention Another embodiment is shown; and FIG. 4 is a side view of the backlight button structure of the present invention, which shows another embodiment. [Main component symbol description] 10-light keyboard 12-key cap 12 200935477 13 - scissors Structure 14 - Elastic Element 14a - Elastic Film 15 - Thin Film Board 16 - Spacer 17 - Light Guide Element 18 - Reflective Pattern 19 - Light Source ® 2- Backlight Button Structure 20 - Button Assembly 22 - Illumination Device 200 - Key 202-scissors foot support structure 204-circuit board 2 06- bottom plate 208-elastomer ❹ 220-light shielding layer 2 2 2 - light guide plate 224-reflection layer 2020-first bracket 2022-second bracket 2024-through hole 2200- Projection 2202-adhesive 2220-breaking hole 200935477 2240-adhesive 3 -backlight button structure 30-button assembly 32-lighting device 300-keycap 302-scissor foot support structure 304-circuit board 306-floor ❹320-shading Layer 322 - light guide plate 324 - reflective layer 3060 - protrusion 3200 - broken hole 3220 - broken hole 3240 - adhesive 4 - backlight button structure © 40 - button assembly 42 - lighting device 400 - key cap 402 - scissors foot support Structure 404 - circuit board 406 - bottom plate 422 - light guide plate 424 - reflective layer 4060 - protrusion 200935477 4220 - broken hole 4240 - adhesive