TWM534889U - Backlight module with membrane switch function - Google Patents
Backlight module with membrane switch function Download PDFInfo
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- TWM534889U TWM534889U TW105210534U TW105210534U TWM534889U TW M534889 U TWM534889 U TW M534889U TW 105210534 U TW105210534 U TW 105210534U TW 105210534 U TW105210534 U TW 105210534U TW M534889 U TWM534889 U TW M534889U
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Description
本創作係提供一種具薄膜開關功能之背光模組,尤指反射膜之反射層為佈設有薄膜開關下層之第一線路層,並於第一線路層上設置有導光板作為中隔層及遮光膜上層之第二線路層,且可搭配整合有光源連接之線路,以簡化結構使整體之總厚度減少。 The present invention provides a backlight module with a membrane switch function, in particular, the reflective layer of the reflective film is a first circuit layer provided with a lower layer of the membrane switch, and a light guide plate is disposed on the first circuit layer as a middle layer and a light shielding layer. The second circuit layer of the upper layer of the film can be combined with a line integrated with the light source to simplify the structure to reduce the overall thickness of the whole.
按,現今電子科技與資訊產業的快速發展,使各種電子產品皆朝向輕、薄、短、小且功能強大的趨勢發展,如電腦、筆記型電腦、行動上網裝置(MID)、智慧型手機、平板電腦等,已成為現代人在日常生活或工作上所不可或缺的電子產品,而使用者與電子產品之間大多是使用滑鼠、鍵盤等輸入裝置來溝通,其中又以鍵盤最為方便作文字、數字或指令的輸入操作,並提昇實用的功能。 According to the rapid development of today's electronic technology and information industry, various electronic products are moving toward light, thin, short, small and powerful trends, such as computers, notebook computers, mobile Internet devices (MIDs), smart phones, Tablet PCs, etc., have become indispensable electronic products for modern people in daily life or work, and most of the users and electronic products use mouse, keyboard and other input devices to communicate, and the keyboard is most convenient. Input operations for text, numbers, or commands, and enhance useful functions.
再者,為了在光線不足的環境下能使人眼清楚的看到每個按鍵上的符號,便有業者在鍵盤中導入導光板及光源技術,並發展出具背光模組之背光鍵盤,使背光模組所產生之光線可投射到每個鍵帽的背面處形成背光效果,讓使用者可以清楚看到鍵帽上的符號,以方便操作使用,而目前市面上之背光鍵盤包括有按鍵模組及背光模組,其中該背光模組為具有一導光板,並於導光板一側表面處設有具軟性電路板及發光二極體之 發光單元,且發光單元為朝導光板投射光線使導光板均勻發光,又導光板下表面為設有可將導光板下表面所射出的光線反射回導光板上之反光片,且導光板上表面設有對應於按鍵模組處之遮光片,便可將導光板所射出的光線穿過遮光片之透光部入射至按鍵模組上形成背光。 Furthermore, in order to enable the human eye to clearly see the symbols on each button in a low-light environment, a manufacturer introduces a light guide plate and a light source technology into the keyboard, and develops a backlit keyboard with a backlight module to make the backlight The light generated by the module can be projected onto the back of each keycap to form a backlight effect, so that the user can clearly see the symbol on the keycap for convenient operation, and the backlight keyboard currently on the market includes a button module. And a backlight module, wherein the backlight module has a light guide plate, and is provided with a flexible circuit board and a light emitting diode on one side surface of the light guide plate. a light-emitting unit, wherein the light-emitting unit projects light to the light guide plate to uniformly illuminate the light guide plate, and the lower surface of the light guide plate is provided with a reflective sheet that can reflect the light emitted from the lower surface of the light guide plate back to the light guide plate, and the surface of the light guide plate The light-shielding sheet corresponding to the button module is arranged to pass the light emitted by the light guide plate through the light-transmitting portion of the light-shielding sheet to the button module to form a backlight.
然而,背光模組上方處之按鍵模組包括有底板、複數按鍵單元、薄膜電路板及至少一個彈性元件,其中按鍵單元為設置於底板上,並包括有鍵帽及位於鍵帽與底板間作上下運動之連結機構,且彈性元件為設置於薄膜電路板與複數按鍵單元之間,當使用者按壓於按鍵單元之鍵帽表面上時,其鍵帽便會下壓彈性元件觸碰於薄膜電路板上,並利用二薄膜層相對內側表面上分別佈設有薄膜開關之上層與下層電路,且二薄膜層之間設有形成電性隔離所需之中隔層,使上薄膜層受到抵壓時可穿過中隔層之透孔與下薄膜層之薄膜開關彼此接觸形成電性導通,以產生對應於該被按壓的按鍵單元字元符號之觸發訊號輸出至背光鍵盤之控制器,便可進行文字、數字或指令的輸入操作。 However, the button module at the top of the backlight module includes a bottom plate, a plurality of button units, a film circuit board and at least one elastic component, wherein the button unit is disposed on the bottom plate and includes a key cap and is located between the key cap and the bottom plate a connecting mechanism for moving up and down, and the elastic element is disposed between the thin film circuit board and the plurality of button units. When the user presses on the surface of the key cap of the button unit, the key cap thereof presses the elastic member to touch the thin film circuit. On the board, the upper layer and the lower layer circuit of the membrane switch are respectively disposed on the opposite inner side surfaces of the two film layers, and the intermediate layer required to form electrical isolation is disposed between the two film layers, so that the upper film layer is pressed The through-hole of the intermediate layer and the membrane switch of the lower film layer are in contact with each other to form electrical conduction, so as to generate a trigger signal corresponding to the pressed symbol of the button unit to be output to the controller of the backlit keyboard, Input operation of text, numbers or instructions.
由於背光鍵盤使用至今已經好幾十年,使背光鍵盤的技術已經十分成熟,而在背光鍵盤內部結構非常簡化的情況下,除非是研發出一全新的結構,並隨著製程技術的提升而生產出具有超細線路、更為薄型化及材質輕量化的電路板,否則要對背光鍵盤結構作出十分巨大的改變是很困難的,所以在大致結構無法改變時,一般都是在背光鍵盤細部結構作改變以確實減少整體之總厚度,更能滿足背光鍵盤相關產品輕、薄、短、小之設計需求,且組裝工序及元件製造成本亦需加入考慮,始可符合背光鍵盤實際上之運用,惟該背光鍵盤目前所使用之背光模組為具有反光片, 並於導光板一側表面處裝設有具發光二極體之軟性電路板,且導光板上下二側處由下往上分別設置有反光片及遮光片合而為一層狀結構,再搭配按鍵模組之薄膜電路板利用二薄膜層所佈設有薄膜開關之上層與下層電路,且二薄膜層之間設有電性隔離所需之中隔層,此種多層結構設計無法簡化整體結構,使總厚度相對增加,並於組裝時亦會因為構件較多而難以有效縮短組裝工序,且反光片上也需配合軟性電路板開設許多可供發光二極體伸入朝導光板投射光線之通孔,導致大量製造之成本高昂,即為從事於此行業之相關廠商所亟欲研究改善之方向所在。 Since the backlit keyboard has been used for decades, the technology of the backlit keyboard has been very mature, and the internal structure of the backlit keyboard is very simplified, unless a new structure is developed and produced with the improvement of the process technology. A circuit board with ultra-fine lines, thinner and lighter materials, otherwise it is very difficult to make a huge change to the backlit keyboard structure, so when the general structure cannot be changed, it is generally in the backlight keyboard detailed structure. The change is to reduce the overall thickness of the whole, and it can better meet the design requirements of light, thin, short and small backlighting related products, and the assembly process and component manufacturing cost also need to be considered, which can meet the practical application of the backlit keyboard. However, the backlight module currently used in the backlit keyboard has a reflective sheet. A flexible circuit board with a light-emitting diode is mounted on one surface of the light guide plate, and a reflective layer and a light shielding film are respectively arranged from the bottom to the top on the light guide plate to form a layered structure. The thin film circuit board of the button module is provided with the upper layer and the lower layer circuit of the membrane switch by using the two film layers, and the intermediate layer required for electrical isolation is disposed between the two film layers, and the multi-layer structure design cannot simplify the overall structure. The total thickness is relatively increased, and it is difficult to effectively shorten the assembly process due to the large number of components during assembly. The reflective sheet also needs to be provided with a flexible circuit board to provide a plurality of through holes for the light-emitting diode to protrude into the light guide plate. The high cost of manufacturing is caused by the desire of relevant manufacturers in this industry to research and improve.
故,新型創作人有鑑於上述習用之問題與缺失,乃搜集相關資料經由多方的評估及考量,並利用從事於此行業之多年研發經驗不斷的試作與修改,始設計出此種具薄膜開關功能之背光模組新型誕生。 Therefore, in view of the above-mentioned problems and shortcomings, the new creators have collected the relevant materials through various evaluations and considerations, and have used the trial and modification of many years of R&D experience in this industry to design such a membrane switch function. The new backlight module was born.
本創作之主要目的乃在於背光模組位於反射膜上表面之反射層上為佈設有薄膜開關下層之第一線路層,並於第一線路層上表面依序設置有導光板及遮光膜,且遮光膜下表面佈設有薄膜開關上層位於第一線路層對稱位置之第二線路層,又背光模組相鄰於導光板處設置有光源可朝光線入射區域投射光線之發光元件,此種反射膜之結構設計不但可省略習知反光片,並將原本薄膜開關之下層電路直接製作在反射膜上,且可搭配整合有發光元件電性連接之線路及電源線路,便不需額外裝設有具發光二極體之軟性電路板及減少反光片開設之通孔數量,以簡化結構使整體佔用的體積與總厚度減少而更為薄型化,並於組裝時構件減少可以縮短組裝工序及降低製造成本,且因通孔減少可增加反射膜之第一線路層空間運用之 佈設面積,使發光元件可依選擇設置在不同位置,也可增加發光元件配合導光板設置的數量,以提升背光模組之發光效果。 The main purpose of the present invention is that the backlight module is located on the reflective layer on the upper surface of the reflective film, and the first circuit layer is provided with a lower layer of the membrane switch, and a light guide plate and a light shielding film are sequentially disposed on the upper surface of the first circuit layer, and The lower surface of the light-shielding film is provided with a second circuit layer in which the upper layer of the membrane switch is located at a symmetrical position of the first circuit layer, and the backlight module is adjacent to the light-guiding plate, and a light-emitting element that emits light toward the light incident region is disposed at the light guide plate. The structural design not only omits the conventional reflective sheet, but also directly fabricates the lower layer circuit of the original membrane switch on the reflective film, and can be combined with the circuit and the power supply line in which the light-emitting elements are electrically connected, so that no additional equipment is required. The flexible circuit board of the light-emitting diode and the number of through holes for reducing the light-reflecting sheet are simplified, so that the overall occupied volume and the total thickness are reduced and thinner, and the component reduction during assembly can shorten the assembly process and reduce the manufacturing cost. And because the reduction of the through hole can increase the space of the first circuit layer of the reflective film The layout area is such that the light-emitting elements can be set at different positions according to the selection, and the number of the light-emitting elements matched with the light guide plate can be increased to improve the light-emitting effect of the backlight module.
本創作之次要目的乃在於背光模組之反射膜係利用反射層上製作薄膜開關下層第一電極接點線路之第一線路層,並搭配將光源可供發光元件電性連接之導電接點線路一併製作在第一線路層,且部分線路亦可分別搭配跳線來製作,也可將薄膜開關下層線路與發光元件(發光二極體)線路製作在第一線路層同一層位置,或者是各別分開製作在反射膜上層/下層,而反射膜與遮光膜之間設置有導光板,除了具有光線傳導及導光發亮外,並利用透孔預定間距作為薄膜開關下層之第一線路層與上層之第二線路層形成電性隔離所需的中隔層。 The secondary purpose of the present invention is that the reflective film of the backlight module uses the reflective layer to form the first circuit layer of the first electrode contact line of the lower layer of the membrane switch, and is matched with the conductive contact that electrically connects the light source to the light-emitting element. The circuit is also formed on the first circuit layer, and some of the lines can also be made with jumpers, or the lower layer of the membrane switch and the light-emitting element (light-emitting diode) line can be made in the same layer of the first circuit layer, or They are separately formed on the upper/lower layer of the reflective film, and a light guide plate is disposed between the reflective film and the light shielding film, except for light conduction and light guiding, and the predetermined pitch of the through holes is used as the first line of the lower layer of the membrane switch. The layer forms a mesoporous layer required for electrical isolation from the second circuit layer of the upper layer.
本創作之另一目的乃在於背光模組位於遮光膜上方處為設置有按鍵組件,並包括有底板、複數按鍵單元及彈性元件,其中按鍵單元包括有鍵帽及位於鍵帽與底板間之連結機構,且彈性元件設置於按鍵單元與遮光膜之間,當使用者按壓於按鍵單元時,其鍵帽便會帶動連結機構,並下壓彈性元件抵持於遮光膜第二線路層伸入導光板之透孔內,即可透過透孔提供彈性變形所需之位移行程,使薄膜開關上層之第二線路層接觸於反射膜下層之第一線路層形成電性導通,以產生對應於該被按壓的按鍵單元字元符號之觸發訊號輸出至背光鍵盤之控制器;當光源之發光元件朝導光板之光線入射區域投射出光線時,可使光線在導光板內部進行傳導及均勻的導光發亮,並利用反射膜之反射層將導光板下表面射出的光線反射回導光板上,使導光板之光線向上通過遮光膜之透光區域後,再入射至按鍵組件上具有可透光性之按鍵單元處形成背光。 Another purpose of the present invention is that the backlight module is disposed above the light shielding film to be provided with a button assembly, and includes a bottom plate, a plurality of button units and elastic members, wherein the button unit includes a key cap and a connection between the key cap and the bottom plate a mechanism, and the elastic member is disposed between the button unit and the light shielding film. When the user presses the button unit, the key cap drives the connecting mechanism, and the pressing elastic member abuts against the second circuit layer of the light shielding film. In the through hole of the light plate, the displacement stroke required for elastic deformation can be provided through the through hole, so that the second circuit layer of the upper layer of the membrane switch contacts the first circuit layer of the lower layer of the reflective film to form electrical conduction, so as to generate corresponding to the The trigger signal of the pressed button unit character symbol is output to the controller of the backlight keyboard; when the light-emitting element of the light source projects light toward the light incident region of the light guide plate, the light can be conducted inside the light guide plate and the uniform light guide is emitted. Bright, and use the reflective layer of the reflective film to reflect the light emitted from the lower surface of the light guide plate back to the light guide plate, so that the light of the light guide plate passes upward through the light shielding film. After light region, and then is incident onto the keypad assembly having a light transmitting unit formed at the back of the key.
1‧‧‧反射膜 1‧‧‧Reflective film
11‧‧‧反射層 11‧‧‧reflective layer
12‧‧‧第一線路層 12‧‧‧First line layer
121‧‧‧第一電極接點 121‧‧‧First electrode contact
122‧‧‧導電接點 122‧‧‧Electrical contacts
13‧‧‧穿孔 13‧‧‧Perforation
2‧‧‧導光板 2‧‧‧Light guide plate
21‧‧‧透孔 21‧‧‧through hole
22‧‧‧光線入射區域 22‧‧‧Light incident area
221‧‧‧孔洞 221‧‧‧ hole
23‧‧‧穿孔 23‧‧‧Perforation
3‧‧‧遮光膜 3‧‧‧Shade film
31‧‧‧第二線路層 31‧‧‧Second circuit layer
311‧‧‧第二電極接點 311‧‧‧Second electrode contact
312‧‧‧導電接點 312‧‧‧Electrical contacts
32‧‧‧穿孔 32‧‧‧Perforation
4‧‧‧光源 4‧‧‧Light source
41‧‧‧發光元件 41‧‧‧Lighting elements
5‧‧‧按鍵組件 5‧‧‧Key components
51‧‧‧底板 51‧‧‧floor
511‧‧‧對接部 511‧‧‧Docking Department
5111‧‧‧扣接腳 5111‧‧‧ buckle feet
52‧‧‧按鍵單元 52‧‧‧Key unit
521‧‧‧鍵帽 521‧‧‧Key Cap
522‧‧‧連結機構 522‧‧‧Linked institutions
53‧‧‧彈性元件 53‧‧‧Flexible components
第一圖 係為本創作第一較佳實施例之立體外觀圖。 The first figure is a perspective view of the first preferred embodiment of the creation.
第二圖 係為本創作第一較佳實施例之立體分解圖。 The second drawing is an exploded perspective view of the first preferred embodiment of the creation.
第三圖 係為本創作第一圖A-A剖面之前視剖面圖。 The third figure is a front cross-sectional view of the section A-A of the first drawing of the creation.
第四圖 係為本創作第一圖B-B剖面之側視剖面圖。 The fourth figure is a side cross-sectional view of the section B-B of the first drawing of the creation.
第五圖 係為本創作第四圖X部分之局部放大圖。 The fifth figure is a partial enlarged view of the X part of the fourth drawing of the creation.
第六圖 係為本創作第二較佳實施例之立體分解圖。 Figure 6 is a perspective exploded view of the second preferred embodiment of the present invention.
第七圖 係為本創作第二較佳實施例之側視剖面圖。 Figure 7 is a side cross-sectional view of the second preferred embodiment of the present invention.
第八圖 係為本創作第七圖Y部分之局部放大圖。 The eighth figure is a partial enlarged view of the Y part of the seventh drawing of the creation.
為達成上述目的及功效,本創作所採用之技術手段及其構造,茲繪圖就本創作之較佳實施例詳加說明其構造與功能如下,俾利完全瞭解。 In order to achieve the above objectives and effects, the technical means and its construction adopted in the present invention are described in detail in the preferred embodiment of the present invention, and the structure and function are as follows.
請參閱第一、二、三、四、五圖所示,係分別為本創作第一較佳實施例之立體外觀圖、立體分解圖、第一圖A-A剖面之前視剖面圖、第一圖B-B剖面之側視剖面圖及第四圖X部分之局部放大圖,由圖中可清楚看出,本創作之具薄膜開關功能之背光模組為包括有反射膜1、導光板2、遮光膜3及朝導光板2投射光線使其均勻導引發光之光源4,故就本案之主要構件及特徵詳述如后,其中: Please refer to the first, second, third, fourth and fifth figures, which are respectively a perspective view, an exploded view, a front view of the first AA section, and a first view of the first preferred embodiment. A side view of the cross section and a partial enlarged view of the X portion of the fourth figure. It can be clearly seen from the figure that the backlight module with the membrane switch function includes the reflective film 1, the light guide plate 2, and the light shielding film 3. And projecting light toward the light guide plate 2 to uniformly guide the light source 4, so the main components and features of the present case are as follows:
該反射膜1為一單層絕緣材質之薄膜,其薄膜係可為聚碳酸酯(PC)、聚苯二甲酸乙二醇酯(PET)、聚酯薄膜(MYLAR ,麥拉片)或其他具有可撓性之材質所製成,並於反射膜1一側表面上(如上表面)利用白色高反射的油墨或其他材料以塗佈、印刷等加工方式形成有具低透光而高反射率之反射層11,且反射層11表面上利用印刷、蝕刻及電鍍等製程方式佈設有具線路(圖中未示出)之第一線路層12,再於線路上分別包括有複數第一電極接點121、至少一組正極與負極之導電接點122及電源接點(圖中未示出)。 The reflective film 1 is a single-layer insulating film, and the film can be polycarbonate (PC), polyethylene terephthalate (PET), polyester film (MYLAR). , Mylar sheet) or other flexible material, and formed on the surface of the reflective film 1 (such as the surface) by white high-reflection ink or other materials by coating, printing, etc. a reflective layer 11 having a low light transmission and a high reflectivity, and a first circuit layer 12 having a line (not shown) is disposed on the surface of the reflective layer 11 by means of printing, etching, and electroplating, and then separately on the line. The method includes a plurality of first electrode contacts 121, at least one set of positive and negative conductive contacts 122, and a power contact (not shown).
該導光板2為一單層具導光功能之薄片狀材質,其軟板係可為聚碳酸酯(PC)、聚甲基丙烯酸甲酯(PMMA)或其他具有高折射率之材質所製成,並利用印刷、膠合、熱壓合等加工方式設置於反射膜1一側表面上(如第一線路層12上表面),且導光板2上利用機械鑽孔、沖壓或雷射加工等方式分別製作出對應於第一電極接點121處之複數透孔21,再於導光板2表面上形成有光線入射區域22,並於光線入射區域22內亦可利用上述之加工方式製作出至少一個對應於導電接點122處之孔洞221。 The light guide plate 2 is a single-layer material with a light guiding function, and the soft plate can be made of polycarbonate (PC), polymethyl methacrylate (PMMA) or other materials with high refractive index. And is disposed on one surface of the reflective film 1 (such as the upper surface of the first circuit layer 12) by means of printing, gluing, thermocompression, etc., and the light guide plate 2 is mechanically drilled, stamped or laser processed. A plurality of through holes 21 corresponding to the first electrode contacts 121 are respectively formed, and a light incident region 22 is formed on the surface of the light guide plate 2, and at least one of the above-mentioned processing methods can be used in the light incident region 22. Corresponding to the hole 221 at the conductive contact 122.
該遮光膜3為一單層絕緣材質之薄膜,其薄膜係可為聚碳酸酯(PC)、聚苯二甲酸乙二醇酯(PET)、聚酯薄膜(MYLAR,麥拉片)或其他具有可撓性之材質所製成,並設置於導光板2相對於反射膜1之另側表面上(如上表面),且反射膜1一側表面上(如下表面)利用白色高反射或黑色高吸光的油墨或其他材料以塗佈、印刷等加工方式形成有遮光層(圖中未示出),但於實際應用時,反射膜1本身亦可為具半透光或不透光顏色(如深色或淺色)、材質之薄膜或前述之薄膜表面上進一步貼附有遮光膠帶(圖中未示出),再於遮光膜3或其遮光層上形成 有對應於透孔21處之透光區域(圖中未示出),而遮光膜3相對於導光板2之內側表面上(如下表面)為利用印刷、蝕刻及電鍍等製程方式佈設有具線路(圖中未示出)之第二線路層31,該第二線路層31係與第一線路層12位於對稱位置,並於線路上包括有複數第二電極接點311,且第二電極接點311係分別與導光板2之透孔21及第一線路層12之第一電極接點121相互對應。 The light shielding film 3 is a single-layer insulating material film, and the film may be polycarbonate (PC), polyethylene terephthalate (PET), polyester film (MYLAR, Mylar) or the like. Made of a flexible material, and disposed on the other side surface of the light guide plate 2 with respect to the reflective film 1 (such as the surface), and the surface of the reflective film 1 (such as the surface) is made of white high reflection or black high light absorption. The ink or other material is formed with a light shielding layer (not shown) by coating, printing, etc., but in practical application, the reflective film 1 itself may also have a semi-transparent or opaque color (such as deep). a color or light color, a film of the material or a surface of the film is further attached with a light-shielding tape (not shown), and then formed on the light-shielding film 3 or the light-shielding layer thereof. There is a light-transmissive region (not shown) corresponding to the through-hole 21, and the light-shielding film 3 is disposed on the inner surface of the light-guiding plate 2 (the surface as follows) by a process such as printing, etching, and electroplating. a second circuit layer 31 (not shown), the second circuit layer 31 is located at a symmetrical position with the first circuit layer 12, and includes a plurality of second electrode contacts 311 on the line, and the second electrode is connected The point 311 corresponds to the through hole 21 of the light guide plate 2 and the first electrode contact 121 of the first circuit layer 12, respectively.
該光源4為設置在相鄰於導光板2處,並包括有至少一個朝導光板2一側入光面(圖中未示出)投射出光線之側發光式或頂發光式發光元件41(如發光二極體),且各發光元件41係利用表面黏著技術(SMT)方式焊接於反射膜1第一線路層12至少一組正極與負極之導電接點122上形成電性連接,並使發光元件41分別伸入導光板2上對應之光線入射區域22且位於孔洞221內,使導光板2可接收發光元件41投射出之光線在其內部進行傳導及導光,再利用微結構或擴散點(圖中未示出)以疏密、大小不同的圖案設計來破壞光線的全反射,使光線可導引至導光板2適當處的出光面(圖中未示出)投射出去而具有增加出光面積整體的均勻性與提升發亮的輝度之功能。 The light source 4 is disposed adjacent to the light guide plate 2 and includes at least one side-emitting or top-emitting light-emitting element 41 that projects light toward a light-incident surface (not shown) on the side of the light guide plate 2 ( For example, a light-emitting diode, and each of the light-emitting elements 41 is electrically connected to the first circuit layer 12 of the reflective film 1 by at least one set of positive and negative conductive contacts 122 of the reflective film 1 by surface adhesion technology (SMT), and The light-emitting elements 41 respectively extend into the corresponding light incident regions 22 of the light guide plate 2 and are located in the holes 221, so that the light guide plate 2 can receive the light projected by the light-emitting elements 41 to conduct and guide light therein, and then utilize the microstructure or diffusion. Points (not shown) are designed to reduce the total reflection of the light in a pattern of different density and different sizes, so that the light can be guided to the light-emitting surface (not shown) where the light guide plate 2 is appropriate to be projected and increased. The uniformity of the overall light-emitting area and the function of enhancing the brightness of the light.
然而,上述之反射膜1在本實施例中係利用反射層11上製作薄膜開關下層第一電極接點121線路之第一線路層12,並搭配將光源4可供發光元件41電性連接之導電接點122線路一併製作在第一線路層12上,且部分線路亦可分別搭配跳線來製作,但於實際應用時,也可依廠商自訂規格或客製化需求將薄膜開關之下層線路與發光元件41連接用之LED(發光二極體)線路製作在第一線路層12同一層位置, 或者是可將上述之線路各別分開製作在反射膜1上層(如上表面)/下層(如下表面),而反射膜1與遮光膜3之間則設置有導光板2,除了具有光線傳導及導光發亮功能之外,並可利用透孔21分隔預定間距作為薄膜開關下層第一線路層12之第一電極接點121與上層第二線路層31之第二電極接點311形成電性隔離所需的中隔層,且該第一線路層12上也可搭配整合有電源線路之電源接點並電性連接於外部供電源,舉凡運用本創作說明書及圖式內容所為之簡易修飾及等效結構變化,均應同理包含於本創作之專利範圍內,合予陳明。 However, in the embodiment, the reflective film 1 is formed on the reflective layer 11 to form the first circuit layer 12 of the first electrode contact 121 of the lower layer of the thin film switch, and is used to electrically connect the light source 4 to the light-emitting element 41. The conductive contacts 122 are formed on the first circuit layer 12, and some of the lines can also be made with jumpers, but in practical applications, the membrane switch can also be customized according to the manufacturer's custom specifications or customized requirements. An LED (Light Emitting Diode) line for connecting the lower layer wiring and the light emitting element 41 is formed at the same layer position of the first wiring layer 12, Alternatively, the above-mentioned lines may be separately formed on the upper layer (upper surface)/lower layer (the following surface) of the reflective film 1, and the light guide plate 2 is disposed between the reflective film 1 and the light shielding film 3, except for light conduction and conduction. In addition to the light-emitting function, the predetermined spacing may be separated by the through-hole 21 as the first electrode contact 121 of the first circuit layer 12 of the lower layer of the membrane switch and the second electrode contact 311 of the upper second layer 31 is electrically isolated. The required intermediate layer, and the first circuit layer 12 can also be connected with a power contact integrated with a power line and electrically connected to an external power supply, and the simple modification and the like of the present specification and the drawings are used. The structural changes shall be included in the scope of the patent of this creation and shall be combined with Chen Ming.
本創作之具薄膜開關功能之背光模組為可進一步配合應用於按鍵組件5以構成發光鍵盤,其中該按鍵組件5包括有底板51、複數按鍵單元52及至少一個彈性元件53,而底板51為設置於反射膜1相對於導光板2另側處之下表面,並於底板51表面上設有具扣接腳5111之複數對接部511,且各扣接腳5111為向上依序穿過反射膜1、導光板2與遮光膜3上對應之穿孔13、23、32,又按鍵單元52為設置於遮光膜3上方處,並包括有鍵帽521及位於鍵帽521與底板51間而可供鍵帽521作上下移動之連結機構522,且連結機構522可為剪刀腳或蝴蝶結構,便可將連結機構522周邊處之軸部(圖中未標號)分別連接於底板51對接部511之扣接腳5111與鍵帽521之對接部上形成活動樞接,並於按鍵單元52與遮光膜3之間亦可進一步設置於橡膠材質所製成之拱頂狀彈性元件53,用以彈性撐抵於鍵帽521上使其按壓時具有良好的彈性回饋,也可依發光鍵盤所應用按鍵組件5的數量多寡適度調整配合設置在背光模組上的數量。 The backlight module with the membrane switch function can be further applied to the button assembly 5 to form an illuminated keyboard. The button assembly 5 includes a bottom plate 51, a plurality of button units 52 and at least one elastic member 53, and the bottom plate 51 is The plurality of abutting portions 511 having the fastening legs 5111 are disposed on the surface of the bottom plate 51, and the fastening legs 5111 are sequentially passed through the reflective film. 1. The light guide plate 2 and the corresponding perforations 13, 23, 32 on the light shielding film 3, and the button unit 52 is disposed above the light shielding film 3, and includes a key cap 521 and is located between the key cap 521 and the bottom plate 51. The key cap 521 is a connecting mechanism 522 for moving up and down, and the connecting mechanism 522 can be a scissor foot or a butterfly structure, and the shaft portion (not labeled) at the periphery of the connecting mechanism 522 can be connected to the butting portion 511 of the bottom plate 51 respectively. The connecting portion of the pin 5111 and the key cap 521 is pivotally connected, and the dome-shaped elastic member 53 made of rubber material is further disposed between the button unit 52 and the light shielding film 3 for elastic support. Good when pressed on the key cap 521 The good elastic feedback can also be adjusted according to the number of the button components 5 applied to the illuminated keyboard to match the number of the backlight modules.
當使用者按壓於按鍵組件5之按鍵單元52時,其鍵帽521便會帶動連結機構522,並下壓彈性元件53抵持於遮光膜3之第二線路層31伸入至導光板2之透孔21內,即可透過透孔21提供遮光膜3彈性變形所需之位移行程,使薄膜開關上層第二線路層31之第二電極接點311接觸於反射膜1下層第一線路層12之第一電極接點121形成電性導通,便可產生對應於該被按壓的按鍵單元52字元符號之觸發訊號輸出至背光鍵盤之控制器;若是使用者停止按壓於按鍵單元52時,該彈性元件53便會彈性復位並推動於鍵帽521連帶將連結機構522向上位移,並使遮光膜3隨之向上彈性復位退出於透孔21處,且第二線路層31與反射膜1之第一線路層12形成電性分離,便完成按鍵之單一按壓行程;另,當光源4之發光元件41進行發光時,可朝光線入射區域22之透孔21入光面投射出光線,並使光線在導光板2內部進行傳導及均勻的導光與發亮,且可透過反射膜1之反射層11將導光板2下表面所射出的光線反射回導光板2上,使導光板2之光線經由出光面向上通過遮光膜3之透光區域,再入射至按鍵組件5上具有可透光性之按鍵單元52處穿出後形成背光,進而達到良好的背光鍵盤發光之效果。 When the user presses the button unit 52 of the button assembly 5, the key cap 521 drives the coupling mechanism 522, and the second circuit layer 31 that presses the elastic member 53 against the light shielding film 3 extends into the light guide plate 2. In the through hole 21, the displacement stroke required for the elastic deformation of the light shielding film 3 is provided through the through hole 21, so that the second electrode contact 311 of the second circuit layer 31 of the upper layer of the membrane switch contacts the first circuit layer 12 of the lower layer of the reflective film 1. The first electrode contact 121 is electrically connected to generate a trigger signal corresponding to the pressed symbol of the depressed button unit 52 to the backlight keyboard; if the user stops pressing the button unit 52, the user The elastic member 53 is elastically reset and pushed by the key cap 521 to displace the coupling mechanism 522 upward, and the light shielding film 3 is elastically reset upwardly and exits through the through hole 21, and the second circuit layer 31 and the reflective film 1 are A circuit layer 12 is electrically separated to complete a single pressing stroke of the button; and when the light-emitting element 41 of the light source 4 emits light, light can be projected toward the light-emitting surface of the through-hole 21 of the light incident region 22, and the light is made Inside the light guide 2 Conducting and uniform light guiding and illuminating, and reflecting the light emitted from the lower surface of the light guide plate 2 through the reflective layer 11 of the reflective film 1 back to the light guide plate 2, so that the light of the light guide plate 2 passes through the light-emitting surface The light-transmitting region of the film 3 is incident on the button unit 52 having the light-transmissive property on the button assembly 5 to form a backlight, thereby achieving a good backlight keyboard illumination effect.
本創作之反射膜1係於反射層11上佈設有薄膜開關下層之第一線路層12,並搭配將光源4可供發光元件41連接之線路一併製作在其上,且反射膜1上表面依序設置有導光板2及遮光膜3,再於遮光膜3相對於導光板2之內側表面上(如下表面)佈設有薄膜開關上層之第二線路層31,而導光板2除了具有光線傳導及導光發亮之外,並可利用透孔21作為薄膜開關之第一線路層12與第二線路層31形成電性隔離 所需的中隔層,以及遮光膜3受到抵壓時彈性變形之位移行程,此種反射膜1之結構設計不但可以省略習知背光模組之反光片,並將原本薄膜開關之下層電路直接製作在反射膜1上,且第一線路層12上搭配整合有光源4可供發光元件41電性連接之線路及電源線路,便不需額外裝設有軟性電路板及其耦接之發光二極體,以減少反光片上開設可供發光二極體伸入於其內之通孔數量,而背光模組在層數減少的情況下,便可簡化整體結構與佔用的體積,使總厚度相對減少且更為薄型化,並於組裝時構件減少,所以可有效縮短組裝工序及降低製造之成本,更因反射膜1上開設之通孔減少可相對增加第一線路層12空間運用之佈設面積,且該光源4之發光元件41可依需求或選擇設置在不同位置而不會受到空間限制,也可適度調整發光元件41配合導光板2設置的數量,進而提升背光模組出光面積均勻度之發光效果。 The reflective film 1 of the present invention is formed on the reflective layer 11 with the first circuit layer 12 of the lower layer of the membrane switch, and is formed on the line connecting the light source 4 to the light-emitting element 41, and the upper surface of the reflective film 1 is formed thereon. The light guide plate 2 and the light shielding film 3 are sequentially disposed, and the second circuit layer 31 of the upper layer of the membrane switch is disposed on the inner surface of the light shielding film 3 opposite to the light guide plate 2 (the surface is as follows), and the light guide plate 2 has light conduction. And the light guide is brightened, and the first circuit layer 12 of the membrane switch can be electrically isolated from the second circuit layer 31 by using the through hole 21 as a membrane switch. The required intermediate layer and the displacement of the light-shielding film 3 by elastic deformation when pressed, the structural design of the reflective film 1 can not only omit the reflective sheet of the conventional backlight module, but also directly under the original membrane switch It is formed on the reflective film 1 and the first circuit layer 12 is provided with a circuit and a power line integrated with the light source 4 for electrically connecting the light-emitting element 41, so that no additional flexible circuit board and its coupled light-emitting diode are required. The polar body is configured to reduce the number of through holes on the reflective sheet for the light emitting diode to protrude therein, and the backlight module can simplify the overall structure and the occupied volume when the number of layers is reduced, so that the total thickness is relatively The invention is reduced in size and thinner, and the number of components is reduced during assembly, so that the assembly process can be shortened and the manufacturing cost can be reduced. Further, the reduction of the through holes formed in the reflective film 1 can relatively increase the layout area of the first circuit layer 12. The light-emitting element 41 of the light source 4 can be disposed at different positions according to requirements or options without being limited by space, and the number of the light-emitting elements 41 matched with the light guide plate 2 can be appropriately adjusted, thereby improving A light emitting area of the light module effect of uniformity.
請搭配參閱第六、七、八圖所示,係分別為本創作第二較佳實施例之立體分解圖、側視剖面圖及第七圖Y部分之局部放大圖,由圖中可清楚看出,其中該反射膜1之第一線路層12為包括有複數第一電極接點121及至少一組導電接點122(如第五圖所示),並於導電接點122上電性連接有光源4之發光元件41,但於實際應用時,遮光膜3之第二線路層31亦可包括有複數第二電極接點311及至少一組導電接點312(如第八圖所示),並於導電接點122上電性連接有光源4之發光元件41,且各發光元件41分別朝導光板2上對應之光線入射區域22投射光線,也可進一步在第二線路層31上搭配整合有電源線路之電源接點(圖中未示出)並連接於外部供電源。 Please refer to the sixth, seventh, and eighth figures, which are respectively a perspective exploded view, a side cross-sectional view, and a partial enlarged view of the Y portion of the seventh embodiment of the second preferred embodiment, which can be clearly seen from the figure. The first circuit layer 12 of the reflective film 1 includes a plurality of first electrode contacts 121 and at least one set of conductive contacts 122 (as shown in FIG. 5), and is electrically connected to the conductive contacts 122. The light-emitting element 41 of the light source 4, but in practical applications, the second circuit layer 31 of the light-shielding film 3 may further include a plurality of second electrode contacts 311 and at least one set of conductive contacts 312 (as shown in the eighth figure) The light-emitting elements 41 of the light source 4 are electrically connected to the conductive contacts 122, and the light-emitting elements 41 respectively project light toward the corresponding light incident regions 22 of the light guide plate 2, and may further be matched on the second circuit layer 31. A power contact (not shown) integrated with a power line is connected to an external power supply.
復請參閱如第二、三、五、六、八圖所示,本創作主要針對背光模組之反射膜1為利用反射層11上佈設有薄膜開關下層之第一線路層12,並於第一線路層12上表面依序設置有導光板2及遮光膜3,且遮光膜3下表面佈設有薄膜開關上層位於第一線路層12對稱位置之第二線路層31,又背光模組相鄰於導光板2處設置有光源4可朝光線入射區域22投射光線之發光元件41,而導光板2除了具有光線傳導及導光發亮之外,並作為薄膜開關之第一線路層12與第二線路層31形成電性隔離所需的中隔層,此種反射膜1結構設計可省略習知反光片,並將原本薄膜開關之下層電路直接製作在反射膜1上,且可搭配整合發光元件41電性連接之線路及電源線路,以簡化結構使整體之總厚度減少,並縮短組裝工序及降低製造成本,且因反光片開設之通孔減少可相對增加反射膜1之第一線路層12空間運用之佈設面積,使發光元件41可依選擇設置在不同位置及增加設置的數量,以提升背光模組之發光效果。 As shown in the second, third, fifth, sixth, and eighth diagrams, the present invention is mainly directed to the reflective film 1 of the backlight module, which is a first circuit layer 12 on which the lower layer of the membrane switch is disposed on the reflective layer 11. A light guide plate 2 and a light shielding film 3 are disposed on the upper surface of the circuit layer 12, and a second circuit layer 31 is disposed on the lower surface of the light shielding film 3 at a symmetric position of the first circuit layer 12, and the backlight module is adjacent to each other. The light guide plate 2 is provided with a light source 41 for projecting light toward the light incident region 22, and the light guide plate 2 has the light transmission and the light guide, and serves as the first circuit layer 12 of the membrane switch. The two circuit layers 31 form a middle spacer layer required for electrical isolation. The structure of the reflective film 1 can omit the conventional reflective sheet, and the underlying circuit of the original thin film switch can be directly fabricated on the reflective film 1 and can be combined with integrated illumination. The circuit and the power supply line electrically connected to the component 41 reduce the overall thickness of the whole structure, shorten the assembly process and reduce the manufacturing cost, and the first circuit layer of the reflective film 1 can be relatively increased due to the reduction of the through hole formed by the retroreflective sheeting. 12 empty Using the layout area of the light emitting element 41 disposed at different positions selected to follow and to increase the number of settings to enhance the luminous effect of the backlight module.
上述詳細說明為針對本創作一種較佳之可行實施例說明而已,惟該實施例並非用以限定本創作之申請專利範圍,凡其它未脫離本創作所揭示之技藝精神下所完成之均等變化與修飾變更,均應包含於本創作所涵蓋之專利範圍中。 The above detailed description is intended to illustrate a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are to be included in the scope of patents covered by this creation.
綜上所述,本創作上述之具薄膜開關功能之背光模組使用時為確實能達到其功效及目的,故本創作誠為一實用性優異之創作,實符合新型專利之申請要件,爰依法提出申請,盼 審委早日賜准本案,以保障新型創作人之辛苦創作,倘若 鈞局有任何稽疑,請不吝來函指示,新型創作人定當竭力配合,實感德便。 In summary, the above-mentioned backlight module with the membrane switch function can achieve its efficacy and purpose when used. Therefore, this creation is a practical and excellent creation, which is in line with the application requirements of the new patent. To file an application, I hope that the trial committee will grant the case as soon as possible to protect the hard work of the new creators. If there is any doubt in the bureau, please do not hesitate to give a letter, and the new creators will try their best to cooperate with them.
1‧‧‧反射膜 1‧‧‧Reflective film
13‧‧‧穿孔 13‧‧‧Perforation
2‧‧‧導光板 2‧‧‧Light guide plate
21‧‧‧透孔 21‧‧‧through hole
22‧‧‧光線入射區域 22‧‧‧Light incident area
221‧‧‧孔洞 221‧‧‧ hole
23‧‧‧穿孔 23‧‧‧Perforation
3‧‧‧遮光膜 3‧‧‧Shade film
32‧‧‧穿孔 32‧‧‧Perforation
4‧‧‧光源 4‧‧‧Light source
41‧‧‧發光元件 41‧‧‧Lighting elements
5‧‧‧按鍵組件 5‧‧‧Key components
51‧‧‧底板 51‧‧‧floor
511‧‧‧對接部 511‧‧‧Docking Department
5111‧‧‧扣接腳 5111‧‧‧ buckle feet
52‧‧‧按鍵單元 52‧‧‧Key unit
521‧‧‧鍵帽 521‧‧‧Key Cap
522‧‧‧連結機構 522‧‧‧Linked institutions
53‧‧‧彈性元件 53‧‧‧Flexible components
Claims (16)
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TW105210534U TWM534889U (en) | 2016-07-13 | 2016-07-13 | Backlight module with membrane switch function |
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TW105210534U TWM534889U (en) | 2016-07-13 | 2016-07-13 | Backlight module with membrane switch function |
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TWM534889U true TWM534889U (en) | 2017-01-01 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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TWI604489B (en) * | 2017-01-06 | 2017-11-01 | 致伸科技股份有限公司 | Keyboard device |
TWI637290B (en) * | 2017-12-06 | 2018-10-01 | 達方電子股份有限公司 | Keyswitch and keyboard thereof |
TWI681431B (en) * | 2018-08-13 | 2020-01-01 | 群光電子股份有限公司 | Illuminated keyboard |
CN110858526A (en) * | 2018-08-22 | 2020-03-03 | 群光电子(苏州)有限公司 | Luminous keyboard |
TWI697926B (en) * | 2018-08-23 | 2020-07-01 | 群光電子股份有限公司 | Keyboard |
CN113936545A (en) * | 2021-10-15 | 2022-01-14 | 业成科技(成都)有限公司 | Backlight module and manufacturing method thereof |
CN115050285A (en) * | 2021-03-09 | 2022-09-13 | 群光电能科技股份有限公司 | Touch control module |
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2016
- 2016-07-13 TW TW105210534U patent/TWM534889U/en unknown
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI604489B (en) * | 2017-01-06 | 2017-11-01 | 致伸科技股份有限公司 | Keyboard device |
TWI637290B (en) * | 2017-12-06 | 2018-10-01 | 達方電子股份有限公司 | Keyswitch and keyboard thereof |
TWI681431B (en) * | 2018-08-13 | 2020-01-01 | 群光電子股份有限公司 | Illuminated keyboard |
CN110858526A (en) * | 2018-08-22 | 2020-03-03 | 群光电子(苏州)有限公司 | Luminous keyboard |
CN110858526B (en) * | 2018-08-22 | 2022-02-25 | 群光电子(苏州)有限公司 | Luminous keyboard |
TWI697926B (en) * | 2018-08-23 | 2020-07-01 | 群光電子股份有限公司 | Keyboard |
CN115050285A (en) * | 2021-03-09 | 2022-09-13 | 群光电能科技股份有限公司 | Touch control module |
CN113936545A (en) * | 2021-10-15 | 2022-01-14 | 业成科技(成都)有限公司 | Backlight module and manufacturing method thereof |
CN113936545B (en) * | 2021-10-15 | 2024-01-16 | 业成科技(成都)有限公司 | Backlight module and manufacturing method thereof |
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