M368835 五、新型說明： 【新型所屬之技術領域】 本創作與發光鍵盤有關，特別是有關於一種用於發光 鍵盤之導光板。 【先前技術】 中華民國公告第M328614號專利案所提供之「結合有 發光裝置的鍵盤」主要係將一金屬板結合;^ —導光板的底 面’再將一按鍵組成設置於導光板的頂面，藉以達到強化 整體結構與簡化整體厚度的目的。但是此專利案之按鍵組 成包含有一電路板，使得此專利案之整體結構會因電路板 的存在而能被簡化的程度相當有限。 中華民國公告第M352718號專利案所提供之「發光鍵 盤裝置」則包含有一按鍵組單元與一發光單元。按鍵組單 疋具有多數按鍵、一電性連接該等按鍵之薄膜電路板，以 及多數設於薄膜電路板之反射導光點；發光單元具有多數 設於薄膜電路板下方之發光元件’使該等發光元件可經由 該等反射導光點的反射作用向上發散。然而，此專利案之 按鍵組單元包含有一薄膜電路板，使得此專利案同樣會具 有無法有效簡化整體結構的問題。 〃 【新型内容】 本創作之主要目的在於提供一種用於發光鍵盤之導光 板’其能有效簡化使用本創作之發光鍵盤的整體纟士構，以 3 M368835 降低製造成本。 為達成上述目的，本創作所提供之導光板包含有一透 明基板與一電路單元。該透明基板之底面形成出多數導光 點，將該底面區隔出多數導光區，使光線可經由該等導光 區向上投射，而該電路單元設於該透明基板之頂面。 在本創作之設計中，將該電路單元直接設於該透明基 板之頂面以取代習用結構中所使用之電路板，可有效簡化 使用本創作之發光鍵盤的整體結構而達到降低製造成本的 目的。 【實施方式】 為了詳細說明本創作之結構、特徵及功效所在，茲舉 以下較佳實施例並配合圖式說明如後。 請參閱第一圖，為本創作一較佳實施例所提供之導光 板0〇)，主要包含有一透明基板(2〇)與一電路單元(30)。 凊配合參閱第二圖’透明基板(2〇)具有一頂面(22)、一 底面(24)、多數貫穿頂面(22)與底面(24)之穿孔(26)，以及 多數導光點(28)。該等導光點(28)形成於透明基板(2〇)之底 面(24)而將底面(24)區隔出多數導光區(4〇)，各導光區(4〇) 之周圍環繞有至少三個穿孔(26)。 電路單元(30)佈設於透明基板(2〇)之頂面(22)，並具有 多數導接點(32)，每一個導接點(32)對應每一個導光區(4〇)。 請參閱第二圖與第三圖，係顯示本創作之導光板(1〇) 設置於一發光鍵盤(60)的狀態。發光鍵盤(6〇)包含有一彈性 M368835 單元(62)、多數剪刀式連桿(64)、一底板(66)、多數鍵帽 (68)，以及一光源(7〇)。 彈性單元(62)具有一薄膜(622)與多數設於薄膜(622)頂 面之彈性體(624)。薄膜(622)貼抵於透明基板(20)之頂面 (22) ’並具有多數個穿孔(626)，薄膜(622)之各穿孔(626)對 應透明基板(20)之各穿孔(26);各彈性體(624)則對應導光板 (10)之各導接點(32)。 各剪刀式連桿(64)套設於彈性單元(62)之各彈性體 (624)〇 底板(66)設於導光板(1〇)的下方而貼抵於透明基板(2〇) 之底面(24) ’並具有多數向上突出之定位部(662)，該等定 位部(662)分別穿經透明基板(2〇)之穿孔(26)與薄膜(622)之 穿孔(626)而分別將該等剪刀式連桿(64)加以固定。 各鍵帽(68)安裝於各剪刀式連桿(64)，並抵接於彈性體 (624)之頂面。當各鍵帽(68)受外力按壓時，可透過剪刀式 連桿(64)的樞轉與彈性體(624)的壓縮而與導光板(1〇)之導 接點(32)電性接觸。 光源(70)設置於導光板(1〇)之側邊，可由導光板(1〇)之 侧邊將光線投射進入導光板(10)，光線將可透過由多數導 光點(28)所形成之導光區(40)產生向上的折射，以達到讓各 鍵帽(68)產生發光的效果。 綜合上述可知’本創作之導光板(10)將電路單元(3〇) 直接設於頂面(22)，省略掉習用專利案之電路板，可有效 簡化發光鍵盤(60)的整體結構而降低製造成本。 M368835 效果。 值得一提的是，如第四圖所示，本創作之導光板(ίο) 更可提供一濾光片（50)，濾光片（50)設置於透明基板(20)之 頂面(22) ’並於對應各導光區（4〇)的位置開設有一開孔 (52)，使光線僅能經由各導光區(4〇)向上折射而無法穿透透 明基板(2〇)的其他位置，以增加本創作之導光板(1〇)的導光M368835 V. New description: [New technical field] This creation is related to the illuminated keyboard, especially for a light guide plate for a light-emitting keyboard. [Prior Art] The "Keyboard incorporating a light-emitting device" provided by the Patent Publication No. M328614 of the Republic of China is mainly a combination of a metal plate; the bottom surface of the light guide plate is further disposed on the top surface of the light guide plate. In order to achieve the purpose of strengthening the overall structure and simplifying the overall thickness. However, the button assembly of this patent contains a circuit board so that the overall structure of the patent can be simplified by the presence of the board. The "light-emitting keyboard device" provided by the Republic of China Publication No. M352718 includes a button unit and a light-emitting unit. The button set unit has a plurality of buttons, a thin film circuit board electrically connected to the buttons, and a plurality of reflective light guiding points disposed on the thin film circuit board; the light emitting unit has a plurality of light emitting elements disposed under the thin film circuit board to enable the The illuminating elements can diverge upwardly via the reflection of the reflected light guiding points. However, the button unit of this patent contains a thin film circuit board, so that the patent also has the problem that the overall structure cannot be effectively simplified. 〃 【New content】 The main purpose of this creation is to provide a light guide plate for an illuminated keyboard, which can simplify the overall gentleman structure of the illuminated keyboard using the present invention, and reduce the manufacturing cost by 3 M368835. In order to achieve the above object, the light guide plate provided by the present invention comprises a transparent substrate and a circuit unit. A plurality of light guiding points are formed on the bottom surface of the transparent substrate, and the bottom surface region is separated from the plurality of light guiding regions, so that light can be projected upward through the light guiding regions, and the circuit unit is disposed on the top surface of the transparent substrate. In the design of the present invention, the circuit unit is directly disposed on the top surface of the transparent substrate to replace the circuit board used in the conventional structure, which can effectively simplify the overall structure of the illuminated keyboard of the present invention and achieve the purpose of reducing manufacturing cost. . [Embodiment] In order to explain in detail the structure, features and functions of the present invention, the following preferred embodiments are described below with reference to the drawings. Referring to the first drawing, a light guide plate (0) provided for a preferred embodiment of the present invention mainly includes a transparent substrate (2〇) and a circuit unit (30). Referring to the second figure, the transparent substrate (2) has a top surface (22), a bottom surface (24), a plurality of perforations (26) penetrating the top surface (22) and the bottom surface (24), and a plurality of light guiding points. (28). The light guiding points (28) are formed on the bottom surface (24) of the transparent substrate (2), and the bottom surface (24) is partitioned from a plurality of light guiding regions (4〇), and the surrounding light guiding regions (4〇) are surrounded. There are at least three perforations (26). The circuit unit (30) is disposed on the top surface (22) of the transparent substrate (2) and has a plurality of guiding points (32), and each of the guiding points (32) corresponds to each of the light guiding regions (4〇). Please refer to the second and third figures, showing the state in which the light guide plate (1〇) of the present invention is disposed on an illuminated keyboard (60). The illuminated keyboard (6〇) includes an elastic M368835 unit (62), a plurality of scissor links (64), a bottom plate (66), a plurality of keycaps (68), and a light source (7〇). The elastic unit (62) has a film (622) and a plurality of elastomers (624) disposed on the top surface of the film (622). The film (622) is adhered to the top surface (22) of the transparent substrate (20) and has a plurality of perforations (626), and the perforations (626) of the film (622) correspond to the perforations (26) of the transparent substrate (20). Each of the elastic bodies (624) corresponds to each of the conductive contacts (32) of the light guide plate (10). Each scissor type connecting rod (64) is sleeved on each elastic body (624) of the elastic unit (62). The bottom plate (66) is disposed under the light guide plate (1〇) and abuts against the bottom surface of the transparent substrate (2〇). (24) 'and has a plurality of upwardly projecting positioning portions (662), respectively, which respectively pass through the perforations (26) of the transparent substrate (2) and the perforations (626) of the film (622) The scissor links (64) are fixed. Each of the keycaps (68) is attached to each of the scissor links (64) and abuts against the top surface of the elastomer (624). When the keycaps (68) are pressed by an external force, they can be electrically contacted with the conductive contacts (32) through the pivoting of the scissor-type connecting rod (64) and the compression of the elastic body (624). . The light source (70) is disposed on a side of the light guide plate (1〇), and the light is projected into the light guide plate (10) by the side of the light guide plate (1〇), and the light is transmitted through a plurality of light guide points (28). The light guiding region (40) produces an upward refraction to achieve the effect of causing the respective keycaps (68) to emit light. In summary, the light guide plate (10) of the present invention directly sets the circuit unit (3) directly on the top surface (22), omitting the circuit board of the conventional patent case, which can effectively simplify the overall structure of the illuminated keyboard (60) and reduce manufacturing cost. M368835 effect. It is worth mentioning that, as shown in the fourth figure, the light guide plate (ίο) of the present invention further provides a filter (50), and the filter (50) is disposed on the top surface of the transparent substrate (20) (22) And opening a hole (52) at a position corresponding to each light guiding area (4〇), so that light can only be refracted upward through each light guiding area (4〇) and cannot penetrate the transparent substrate (2〇). Position to increase the light guide of the light guide plate (1〇) of the creation
說明’並非用來限制本案之範圍，其他等 變化’亦應為本案之申請專利範圍所涵蓋 成元件，僅為舉例 其他等效元件的替代或 M368835 【圖式簡單說明】 第一圖為本創作一較佳實施例之正視圖。 第二圖為本創作一較佳實施例應用於鍵盤之立體分解 圖。 第三圖為本創作一較佳實施例應用於鍵盤之局部剖視 圖。 ' 第四圖類同於第三圖，主要顯示導光板設有濾光片之 狀態。 【主要元件符號說明】 導光板(10) 透明基板(20) 頂面(22) 底面(24) 穿孔(26) 導光點(28) 電路單元(30) 導接點(32) 導光區(40) 濾光片（50) 開孔(52) 發光鍵盤(60) 彈性單元(62) 薄膜(622) 彈性體(624) 穿孔(626) 剪刀式連桿(64) 底板(66) 定位部(662) 光源(70) 鍵帽(68) 7The description 'is not intended to limit the scope of the case, other changes, etc.' should also be covered by the scope of the patent application of this case, only for the substitution of other equivalent components or M368835 [Simple illustration] The first picture is the creation A front view of a preferred embodiment. The second figure is a perspective exploded view of a preferred embodiment of the present invention applied to a keyboard. The third figure is a partial cross-sectional view of a preferred embodiment of the present invention applied to a keyboard. The fourth picture is similar to the third picture, mainly showing the state in which the light guide plate is provided with a filter. [Main component symbol description] Light guide plate (10) Transparent substrate (20) Top surface (22) Bottom surface (24) Perforation (26) Light guiding point (28) Circuit unit (30) Conducting point (32) Light guiding area ( 40) Filter (50) Opening (52) Illuminated keyboard (60) Elastic unit (62) Film (622) Elastomer (624) Perforation (626) Scissor linkage (64) Base plate (66) Positioning ( 662) Light source (70) Keycap (68) 7