470985 A7 B7 五、發明說明（） hi發明領域： 本發明係關於按鍵製造方法，特別是有關於具有勻稱 圖案層之按鍵製造方法。 U發明背景： 隨著資訊科技的蓬勃發展，各種資訊電腦周邊、電器 商品推陳出新，例如：電話機、計算機、電腦、個人數位 輔助器（PDA)等’加上資訊家電（Inf〇rmati〇n AppHance)觀 念的普遍推冑’使得產品的應用更加多元，其中這些產品 在執行功能運作時都必須接受操作者的指令，通常使用者 是透過按鍵操作進行指令的輸入程序，所以按鍵的可靠 度、整合性以及耐磨性顯得格外重要。第i圖至第3 ▲為 傳統的按鍵製造方法。 首先請參考第1圖，利用聚碳酸脂（p〇lycarb〇nate，PC) 材質之實體按鍵1 02與矽膠墊（SiHc〇ne Rubber Pad)i 〇〇貼 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 合^程。係利用塑膠射出成型法形.成實體按鍵1〇2，接著 在實體按键102底面進行字體1〇4之印刷，最後將實^ 鍵與石夕„ 100貼纟。其製程的缺點在於貼合的= 中，實體按键1〇2與矽膠墊100不具自動鑲嵌的功能，= 實體按鍵1〇2與矽膠墊100之間的對準定位不易控制，，、 即實體按鍵102與矽膠墊1〇〇的相對位置無法達到精確^ 準，除非是使用精度極高的央持治具作為辅助，換:之斟 爽持治具的加工精度必須大幅提高才足以減低二 差’但卻已經直接增加產品的成本。 口 _ 2 本紙張尺度適用中國國家標準（CNS)A4規格（21〇 x 297公釐） (請先閱讀背面之注意事項再填寫本頁) -線· 470985 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（ 其次’當實體按鍵102的厚度超過4mm時，由於光 線折射嚴重’在觀看並操作按鍵時，按鍵底面的字體丨〇4 會模糊不清，特別是在進行按鍵操作時’若操作員的視線 與按鍵之最佳可視區域的角度過大，則字體1 〇 4、圖形失 真的情形會更加嚴重，若應用於工業上量產型機具時，容 易造成生產線的癱瘓。另外，應用於具有高安全控管機台 之面板控制時，錯誤的指令輸入可能會產生安全上的問 題。 參考第2圖’利用聚碳酸脂（PC)材質之空心按鍵2〇0 與矽膠墊1 00貼合製程。預先進行塑膠射出成型形成空心 按鍵200 ’接著在空心按鍵2〇〇表面以噴塗的方式將所需 要的顏色塗佈在空心按鍵200表面，以形成塗層206，然 後在$心按鍵200表面以雷射光束雕刻出字體2〇2，隨後 再次以喷塗方式將耐磨耗材質2 0 4均勻塗佈於空心按鍵 2 00表面’最後將空心按鍵200與矽膠墊1〇〇作貼合。其 製程的缺點在於生產過程中需使用噴塗設備、雷射雕刻機 以及印刷設備等精密設備，故程序繁雜瑣碎^其次，組成 字體202的材質顆粒相當細緻，使得字體2〇2容易遭受微 塵的污染，所以生產環境潔淨度的要求相對較為嚴苛，故 製程良率不南’以致於產品成本無法降低。再者，空心按 鍵2 00表面雖以喷塗方式進行耐磨處理，但是在長久接觸 使用下仍然會造成按鍵字體202磨損甚至完全消失。 參考第3圖，利用軟性薄殼注入聚碳酸脂（pC)材質之 成型方法。係利用軟性薄殼3 0 0印刷字體3 0 2，再以壓伸 3 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 丨丨 |丨1 丨 — II 丨 — 丨 > ·丨 I I l· 1 I I »11 I — — — I* — ί (請先閱讀背面之注意事項再填寫本頁) 470985 A7 ________B7__—— —__ 五、發明說明（） 成型方式形成桉鍵外觀之軟性薄殼3 0 0 ’接著將軟性薄殼 3〇〇置入射出模上，並注入聚碳酸脂（PC)3 04於軟性薄殼 3 0 0内邵。其製程的缺點在於軟性薄殼3 0 0表面的緻密性 差’在印刷金屬油墨以及壓伸成型/射出之後，字體3 02 所在的表面光滑平整度不易控制，不良率高’同時易造成 按鍵的表面不具金屬光澤而缺乏高級質感。再者，於注入 聚碳酸脂（PC)304於軟性薄殼300之前’若軟性薄殼300 受到一點外力作用之後容易產生永久性的變形。此外，由 於軟性薄殼3 00為一體成型，使得下壓按鍵時容易牽動周 圍其他的按鍵，所以按鍵不具有段落分明的效果。 因此’傳統按键的製造方法中實體按鍵1 02與矽膠墊 1 00之對準不易，字體丨04的完整呈現受限於按鍵厚度， 字體202以及塗層206易受微塵污染，以及按鍵薄殼300 容易產生永久變形等諸多缺點。 述 概 及 的 目 明 發 在 存 法 方 造 製 鍵 按 的 統 傳 述 所 中 景 背 明 發 述 上 於 鑑 I I 1 I I I ----I I ί - — 111· —--訂-----I ---、 (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 製 的 建 按 •jgf 種 1 供 提 為 的。 目 面 要表 主鍵 的按 明近 發貼 本層 ， 案 此 圖 因得 〇 使 點 ， 缺法 多 方 許造 避 以 面 底 鍵 按 於 案 圖 之 稱 勾 〇 度題 厚問 成的 形損 為磨 的度 目 過 一 層 另案 【畜j 免 之下一 述含第 上包定 據少穩 根至以 法， 方理 驟 步 列 膜 材 該處薄 ， 縮 \ 法預第 方行中 造進程 製上過 的膜工 鍵薄加 按「得 種第使 一在， 出」性 提 ί 特 :首 案 質 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 470985 A7 -__B7___ 五、發明說明（） (請先閱讀背面之注意事項再填寫本頁) 膜的加工變形量降至最小，同時避免第一薄膜的面積在烘 烤處理時產生超量收縮，以提高按鍵整體設計的尺寸精 度。接著在第一薄膜底面印刷形成圖案層，以產生複合薄 膜’其中圖案層為圖示、文字以及數字功能標記，並且圖 案層包含各種顏色。隨後壓伸複合薄膜’以形成圖案層朝 下之凸型薄膜’其中圖案層位於凸型薄膜之底面，以避免 接觸使用時造成圖案層之永久性磨損。 然後在凸型薄膜上表面形成第二薄膜，例如較厚之塑 膠，以產生按鍵薄膜，並使第二薄膜與凸型薄膜緊密貼 合，其中第一薄膜' 圖案層以及第二薄膜三者緊密地貼 合。接著進行外形沖切，係以適當的按鍵薄膜外緣輪廓為 邊界，利用沖模方式裁除部份之按鍵薄膜，以形成按键雛 型。最後，進行按鍵組裝，使得按鍵離型與橡膠凸塊進行 對準配合’以形成符合設計規格之按鍵組合。 因此’根據本發明所述之勻稱按鍵的製造方法具有以 下優點，（1)按鍵與矽膠墊進行貼合時，對準定位簡單、容 易。圖案層接近按鍵表面並具有厚度均勻性，故操作者可 以清晰地觀看；（2)製程簡化，節省嘴塗耐磨材料的程序以 經濟部智慧財產局員工消費合作社印製 及雷射雕刻的製程，故良率可大幅提升；（3)避免按鍵表面 的圖案層被磨損；（4)按鍵的緻密性極佳，故操作時按鍵具 有較佳的質感；（5)當進行金屬塗料的附著時，所形成之按 鍵表面具有較佳光澤；（6)壓下按鍵時’產生段落明確的動 作及較佳的彈性。 5470985 A7 B7 V. Description of the Invention (HI) Field of the Invention: The present invention relates to a method for manufacturing keys, and more particularly to a method for manufacturing keys having a uniform pattern layer. Background of the Invention: With the vigorous development of information technology, various information computer peripherals and electrical products have been introduced, such as: telephones, computers, computers, personal digital assistants (PDAs), etc., plus information appliances (Infomatio AppHance) The popularization of the concept 'makes the application of products more diversified, in which these products must accept the operator's instructions when performing functional operations, usually the user enters the instruction input procedure through key operations, so the reliability and integration of the keys And wear resistance is especially important. Figures i to 3 ▲ show the traditional key manufacturing method. First, please refer to Figure 1. It is printed by the physical keypad 102 made of Polycarbonate (PC) and SiHcone Rubber Pad i 00. It is printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs. Hoping together. It is formed by plastic injection molding method. The physical key 102 is formed, and then the font 104 is printed on the bottom surface of the physical key 102. Finally, the real ^ key and Shi Xi 100 are attached. The disadvantage of the manufacturing process is that the = Medium, the physical button 102 and the silicone pad 100 do not have the function of automatic inlay, = the alignment and positioning between the physical button 102 and the silicone pad 100 is not easy to control, that is, the physical button 102 and the silicone pad 100 The relative position cannot reach the exact standard, unless it is using a highly accurate central holding fixture as an aid, in other words: the processing accuracy of Pingshuang holding fixture must be greatly improved to reduce the difference, but it has directly increased the cost of the product.口 _ 2 This paper size is applicable to China National Standard (CNS) A4 specification (21 × 297 mm) (Please read the precautions on the back before filling this page)-Line · 470985 A7 B7 Employees ’Consumption of Intellectual Property, Ministry of Economic Affairs Cooperative printed 5. Description of the invention (Secondly, when the thickness of the physical button 102 exceeds 4mm, the light is refracted seriously. When viewing and operating the button, the font on the bottom of the button will be blurred, especially When pressing the button, 'If the angle between the operator's line of sight and the optimal viewing area of the button is too large, the situation of font 104 and graphics distortion will be more serious. If it is applied to industrial mass-produced tools, it will easily cause Paralysis. In addition, when applied to panel control with high security control equipment, incorrect command input may cause safety problems. Refer to Figure 2 'Using Polycarbonate (PC) Hollow Keys 200 and Silicone pad 100 bonding process. Plastic injection molding is performed in advance to form a hollow key 200 ', and then the required color is spray-coated on the surface of the hollow key 200 to form a coating 206 on the surface of the hollow key 200. Then, On the surface of the $ 200 key button 200, a font is engraved with a laser beam, and then the wear-resistant material 2 0 4 is evenly coated on the surface of the hollow key 200 by spraying. Finally, the hollow key 200 and the silicone pad 1 〇〇 for lamination. The disadvantage of its manufacturing process is that it requires the use of spraying equipment, laser engraving machine, printing equipment and other precision equipment in the production process, so the procedure is complicated and cumbersome ^ Second, the group The material particles of the font 202 are very fine, making the font 202 vulnerable to dust pollution. Therefore, the cleanliness of the production environment is relatively strict, so the process yield is not high, so that the product cost cannot be reduced. Furthermore, the hollow keys Although the surface of 00 is wear-resistant by spray coating, it will still cause the key font 202 to wear out or even disappear completely under long-term contact. Refer to Figure 3, using a soft thin shell to inject polycarbonate material (pC). .It uses a soft thin shell 3 0 0 to print fonts 3 2 2 and then to emboss 3 sheets. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 丨 丨 | 丨 1 丨 — II 丨 — 丨> · II l · 1 II »11 I — — — I * — ί (Please read the precautions on the back before filling this page) 470985 A7 ________ B7 __—— —__ 5. Description of the invention () Eucalyptus is formed by the molding method Appearance of the soft shell 300 'Then the soft shell 300 was placed on the injection mold, and polycarbonate (PC) 3 04 was injected into the soft shell 300. The disadvantage of the process is that the denseness of the surface of the soft shell 3 0 0 is poor. 'After printing metal ink and extrusion molding / injection, the smoothness and flatness of the surface where the font 3 02 is located is not easy to control, and the defect rate is high. At the same time, it is easy to cause the surface of the keys. Does not have metallic luster and lacks high-quality texture. In addition, before the polycarbonate (PC) 304 is injected into the soft shell 300, if the soft shell 300 is subjected to a slight external force, permanent deformation is liable to occur. In addition, since the soft thin shell 3 00 is integrally formed, it is easy to move other keys around when pressing the keys, so the keys do not have a clear effect. Therefore, in the traditional manufacturing method of the key, the alignment of the physical key 102 and the silicon pad 100 is not easy. The complete presentation of the font 04 is limited by the thickness of the key, the font 202 and the coating 206 are easily polluted by dust, and the key shell 300 Prone to many disadvantages such as permanent deformation. The general purpose of the description is stated in the general narrative of the key press created by the depositing party. The description of the background is stated in Jian II 1 III ---- II ί-— 111 · ——— Order ----- I --- 、 (Please read the notes on the back before filling out this page) The construction press printed by the Intellectual Property Bureau of the Ministry of Economic Affairs's Consumer Cooperatives • jgf Type 1 Contributions. It is necessary to post the layer of the primary key in the near future. This picture has a point of zero. In the absence of methods, many parties can avoid making the bottom key according to the name of the picture. The degree of damage is as follows: The degree of grinding has been seen in another layer. [Animal j, exemption, the first package contains the first package of data, and the method is based on the method. The principle is to list the film material thinly. Passed membrane working keys are thinly pressed according to the characteristics of "getting the first seed and making it come out." Special: The first case quality paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 470985 A7 -__ B7___ 5 2. Description of the invention () (Please read the precautions on the back before filling this page) The processing deformation of the film is minimized, and the area of the first film is prevented from shrinking excessively during the baking process to improve the overall design of the button. Dimensional accuracy. Then, a pattern layer is printed on the bottom surface of the first film to produce a composite film, wherein the pattern layer is a graphic, text, and digital function mark, and the pattern layer includes various colors. The composite film is subsequently extruded to form a convex film with the pattern layer facing down, wherein the pattern layer is located on the bottom surface of the convex film to avoid permanent wear of the pattern layer when in contact with the film. A second film, such as a thicker plastic, is then formed on the top surface of the convex film to produce a keypad film, and the second film is closely adhered to the convex film, wherein the first film 'pattern layer and the second film are close together. To fit. Next, the shape of the button is cut by using the appropriate contour of the outer edge of the button film as a boundary, and a part of the button film is cut by a die to form a prototype of the button. Finally, the key assembly is performed so that the key release is aligned with the rubber bump 'to form a key combination that meets the design specifications. Therefore, the method for manufacturing the symmetrical keys according to the present invention has the following advantages. (1) When the keys are bonded to the silicon pad, the alignment and positioning are simple and easy. The pattern layer is close to the surface of the button and has a uniform thickness, so the operator can clearly see it; (2) The process is simplified, and the process of saving wear-resistant materials on the mouth is simplified. Therefore, the yield can be greatly improved; (3) Avoid the pattern layer on the key surface from being worn; (4) The compactness of the key is excellent, so the key has a better texture during operation; (5) When the metal paint is adhered The surface of the formed key has a better gloss; (6) When the key is pressed, a clear action and a better elasticity are generated. 5
470985470985
經濟部智慧財產局員工消費合作社印製 五N發明說明（） 圖式簡 jLjUi ： ：----- 弟1圖繪π習知技術之利用聚碳酸脂（pc)材質之實體按键 與碎膠墊貼合製程示意圖； 第2圖繪777習知技術之利用聚碳酸脂（PC)材質之空心按鍵 與矽膠墊貼合製程示意圖； 第3圖緣不名1 2知技術之利用軟性薄膜注入聚碳酸脂（PC)材 質之成型方法示意圖； 第4圖續7K依據本發明之第一薄膜預縮示意圖； 第5圖綠示依據本發明之圖案層形成示意圖； 第6圖繪示依據本發明之複合薄膜壓伸示意圖； 第7圖繪示依據本發明之形成第二薄膜示意圖； 第8圖繪示依據本發明之外形沖切示意圖；以及 弟9圖纟會示依據本發明之按鍵組裝示意圖。 圖號對照說明； 100 矽膠墊 102 實體按鍵 104 字體 200 空心按鍵 202 字體 204 耐磨耗材質 206 塗層 300 軟性薄殼 302 字體 304 聚碳酸脂 400 空心按鍵 402 字體 500 圖案層 502 複合薄膜 600 凸型薄膜 302 字體 ------------,,^-----Γ I--訂---------線 (請先閲讀背面之注意事項再填寫本頁) 1 2 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 按鍵薄膜 按鍵 470985 A7 __________B7____ 五、發明說明（） 70 0 第二薄膜 8 0 0 按鍵雛型 9〇2 橡膠凸塊 5-6發明詳細說日η £ 本4月針對g知技術之缺失提供有效的解決方法。茲 X Θ示輔助說明，並說明具句稱圖案層之按鍵製造方法。 首先叫參閱第4圖’其繪示第一薄膜4〇〇預縮流程。 k供第一薄膜400，其可為透光/半透光材料，例如聚碳酸 脂（PC)、聚對苯二甲酸二乙酯（pET)或聚對苯二甲酸二丁 埽酯（PBT)。對第一薄膜4〇〇進行預縮處理，以穩定第— 薄膜400的材料特性，使得加工過程中第一薄膜4〇〇的加 工變形量降至最小，同時避免第一薄膜400的面積在烘烤 處理時產生超量收縮’以提高按鍵整體設計的尺寸精度， 特別是當資訊應用產品朝向輕、薄、短、小趨勢之際，桉 鍵尺寸精度的控制更加重要。 參閱第5圖，其繪示圖案層5 0 0形成流程。在第一薄 膜400底面形成圖案層500，以產生複合薄膜502。本發 明較佳實施例中，係以印刷設備於第一薄膜400底面印製 圖示、文字以及數字功能標記，並且此圖案層500包含各 種顏色。 參閱第6圖，其繪示複合薄膜502壓伸流程。利用高 壓氣體、壓伸模具或真空抽製，以對複合薄膜502進行壓 伸成型’再利用沖壓機具以上下模之模具對複合薄膜5 0 2 7 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） < — — — — 111—— — — — β L·^ * I I I l· I I I * — — — — — — — — I V f讀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 470985 A7 B7 五、發明說明（） -------------Ί — (睛先閱讀背面之注意事項再填寫本頁) 進行沖壓成型，以形成圖案層500朝下之凸型薄膜600。 而且圖案層500位於凸型薄膜6〇〇底面，當使用者壓下按 键時，兩者之間的接觸並不會使圖案層5〇〇造成永久性的 磨損或脫落，因此本發明所述之按鍵可以耐久性使用。 參閱第7圖，其繪示形成第二薄膜7〇〇流程。在凸型 薄膜600上表面形成第二薄膜7〇〇，以使第二薄膜7〇〇緊 密地貼合於凸型薄膜6〇〇，以產生按鍵薄膜7〇2，換言之， 第一薄膜400、圖案層5〇〇以及第二薄7〇〇膜三者緊密地 貼合。本發明之較佳實施例中，第二層薄膜7 〇 〇為較厚之 透光硬質材料，例如聚碳酸脂（pc)、ABS樹脂 (Acryionitrile-butadiene-styrene Resin)或者是壓克力，其 形成的方法係使用射出成型法’亦即將凸型薄膜6 〇 〇放置 於射出成型模具上，例如是上模或下模，接著在凸型薄膜 600的上表面加注透光/半透光硬質材料，使得透光/半透 光硬質材料與凸型薄膜6〇〇緊密貼合。 ，線· 經濟部智慧財產局員工消費合作社印製 由於圖案層500以勾稱的厚度附著在凸型薄膜6〇〇的 底面’因此當操作者的視線藉由透光/半透光硬質材料平均 地投射在圖案層500時，由於圖案層500厚度很薄而且貼 近按鍵接觸表面’更重要的是圖案層5〇〇與凸型薄膜600 句稱地貼合在一起，而且圖案層5 〇〇的原始尺寸大小可以 完整地呈現’不會有圖案放大或縮小的問題，所以圖案層 5 〇 〇會相當清楚’特別是當按键的高度超出一定範圍以上 時’例如4mm，本發明所述之勻稱圖案層500的優越特性 更加明顯’進而適用於不同的應用領域。 8 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 470985 A7 - _ __ B7 五、發明說明（） 參閱第8圖’其繪示外形沖切流程。以適當的按鍵薄 膜702外緣輪廓為邊界，利用沖切方式裁除部份的按鍵薄 薄膜7 0 2 ’以形成按鍵離型8 〇 〇。本發明之較佳實施例中， 可以進行單一按鍵按键離型或組合按鍵離型之沖模下 料。由於第一薄膜400已經事先作預縮處理，因此運用沖 模之較大變形加工處理時，按鍵雛型8 〇 〇不會產生超量變 形’同時藉由預留的加工裕度，更可以使按鍵的尺寸大小 始終符合原先的設計規格。 最後’參閱第9圖，其繪示按鍵組裝流程。將按鍵離 型800與橡膠凸塊902進行對準貼合，以形成符合設計規 格之按鍵904。因為按鍵薄膜702與橡膠凸塊902之配合， 係利用内凹按鍵薄膜702與橡膠凸塊902進行組裝配合， 故此一結合方式可以節省額外的治具輔助而輕易地完成 按鍵自動定位對準的效果，特別適用於大量的生產.。 综上所述’本發明之製程中，按鍵薄膜7〇2與橡膠凸 塊9 0 2進行貼合時對準定位簡單、容易，故生產成本低廉。 圖案層.500接近按键904表面並具有厚度均勻性’故操作 者可以清晰地檢視使用，尤其是視角與按鍵9〇4正視圖之 法線夾角很大時，依然可以正確看到圖案層5 〇 〇内容。製 私簡化，節名喷塗耐磨材料的程序以及雷射雕刻的製程， 故良率可大幅提升。 此外’按键904表面的圖案層5〇〇可保持完整不被磨 損’故可增加按鍵904的使用壽命。按鍵9〇4的緻密性極 佳，故按鍵904具有較佳的質感。同時，當進行金屬塗料 9 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公楚） (睛先閱讀背面之注意事項再填寫本頁) -,k-----=----訂---------線 l· 經濟部智慧財產局員工消費合作社印製 五、發明說明（） 的丨付著裡序時，所形成之按鍵9 0 4表面具有較佳光澤’可 以増進市場競爭力。壓下按鍵9 0 4時’產生段落明確的動 作及較佳的彈性。 本發明以較佳實施例說明如上，僅用於幫助暸解本發 明之貫施’非用以限定本發明之精神，而熟悉此領域技藝 者於領悟本發明之精神後，在不脫離本發明之精神範圍 内’當可作些許更動潤飾及等同之變化替換，其專利保護 I巳圍當視後附之申請專利範圍及其等同領域而定。 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公爱）Five-N invention description printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs () Schematic jLjUi ： ———————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————— Schematic diagram of the pad bonding process; Figure 2 shows the 777 conventional technology using polycarbonate (PC) hollow keys and silicon pad bonding process diagram; Figure 3 is unknown 1 2 Known technology using soft film injection polymer Schematic diagram of the molding method of carbonate (PC) material; Figure 4 continued from 7K, the first film pre-shrinking schematic diagram according to the present invention; Figure 5 green shows the schematic diagram of the pattern layer formation according to the present invention; and Figure 6 shows the Schematic drawing of composite film extrusion; Fig. 7 shows a schematic drawing of forming a second film according to the present invention; Fig. 8 shows a schematic drawing of contour cutting according to the present invention; and Fig. 9 shows a schematic diagram of key assembly according to the present invention. Drawing number comparison description; 100 Silicone pad 102 Physical key 104 Font 200 Hollow key 202 Font 204 Wear-resistant material 206 Coating 300 Soft shell 302 Font 304 Polycarbonate 400 Hollow key 402 Font 500 Pattern layer 502 Composite film 600 Convex Thin film 302 font ------------ ,, ^ ----- Γ I--order --------- line (Please read the precautions on the back before filling this page ) 1 2 This paper size is in accordance with China National Standard (CNS) A4 (210 X 297 mm) Key film key 470985 A7 __________B7____ 5. Description of the invention () 70 0 Second film 8 0 0 Key model 902 rubber convex Block 5-6 invention details day η £ This April provides effective solutions to the lack of know-how. Herein, X Θ is an auxiliary explanation, and a method for manufacturing a key with a pattern layer is described. First, refer to FIG. 4 ', which shows the first film 400 shrinking process. k for the first film 400, which may be a light-transmitting / translucent material, such as polycarbonate (PC), polyethylene terephthalate (pET), or polybutylene terephthalate (PBT) . Pre-shrink the first film 400 to stabilize the material characteristics of the first film 400, to minimize the processing deformation of the first film 400 during processing, and to prevent the area of the first film 400 from drying Over-shrinkage occurs during baking to improve the dimensional accuracy of the overall key design, especially when the information application products are trending towards light, thin, short, and small trends, the control of the dimensional accuracy of eucalyptus keys is more important. Refer to FIG. 5, which illustrates a process of forming the pattern layer 500. A pattern layer 500 is formed on the bottom surface of the first film 400 to produce a composite film 502. In the preferred embodiment of the present invention, icons, characters, and digital function marks are printed on the bottom surface of the first film 400 by a printing device, and the pattern layer 500 includes various colors. Please refer to FIG. 6, which illustrates the process of extruding the composite film 502. Use high-pressure gas, extrusion die or vacuum drawing to stretch the composite film 502. Then use the mold above and below the punching machine to mold the composite film. 5 0 2 7 This paper size applies to China National Standard (CNS) A4 specifications. (210 X 297 public love) < — — — — 111—— — — — β L · ^ * III l · III * — — — — — — — IV f Read the notes on the back before filling in this page } Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 470985 A7 B7 V. Description of the invention () ------------- Ί — (Read the precautions on the back before filling in this page) Molded to form the convex film 600 with the pattern layer 500 facing downward. In addition, the pattern layer 500 is located on the bottom surface of the convex film 600. When the user presses the button, the contact between the two will not cause the pattern layer 500 to be permanently worn or peeled off. The keys are durable. Refer to FIG. 7, which illustrates a process of forming a second thin film 700. A second film 700 is formed on the upper surface of the convex film 600 so that the second film 700 closely adheres to the convex film 600 to produce a key film 700. In other words, the first film 400, The pattern layer 500 and the second thin 700 film are closely adhered. In a preferred embodiment of the present invention, the second layer of film 700 is a thicker light-transmitting hard material, such as polycarbonate (pc), ABS resin (Acryionitrile-butadiene-styrene Resin), or acrylic. The forming method is to use an injection molding method, that is, to place the convex film 600 on an injection molding mold, such as an upper mold or a lower mold, and then fill the upper surface of the convex film 600 with a transparent / translucent rigid Material, making the transparent / translucent hard material and the convex film 600 closely adhere. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Since the pattern layer 500 is attached to the bottom surface of the convex film 600 at a thickness of the nominal thickness, the operator ’s line of sight is averaged by the transparent / translucent hard material. When the ground is projected on the pattern layer 500, since the thickness of the pattern layer 500 is very thin and close to the key contact surface, it is more important that the pattern layer 500 and the convex film 600 are closely attached together, and the pattern layer 500 is The original size can be completely presented, “there is no problem of pattern enlargement or reduction, so the pattern layer 5000 will be quite clear” (especially when the height of the button exceeds a certain range), such as 4mm, a symmetrical pattern according to the present invention The superior characteristics of the layer 500 are more obvious, and thus suitable for different application fields. 8 This paper size is in accordance with China National Standard (CNS) A4 (210 X 297 mm) 470985 A7-_ __ B7 V. Description of the invention () Refer to Figure 8 'for the outline punching process. With the appropriate contour of the outer edge of the keypad film 702 as a boundary, a part of the keypad film 7 0 2 ′ is cut out by punching to form a key release 8000. In a preferred embodiment of the present invention, the blanking of a single-button release or a combination of button release can be performed. Because the first film 400 has been pre-shrinked in advance, when the large deformation processing of the die is used, the button prototype 800 will not cause excessive deformation. At the same time, the reserved processing margin can make the button more The size always meets the original design specifications. Finally, refer to FIG. 9, which illustrates a key assembly process. The key release 800 is aligned with the rubber bump 902 to form a key 904 that conforms to the design specifications. Because the keypad film 702 and the rubber bump 902 cooperate, the recessed keypad film 702 and the rubber bump 902 are used to assemble and cooperate. Therefore, this combination method can save the additional fixture assistance and easily complete the automatic key positioning and alignment effect. , Especially suitable for mass production ... In summary, in the process of the present invention, the alignment and positioning of the keypad film 702 and the rubber bump 902 are simple and easy, and therefore the production cost is low. The pattern layer .500 is close to the surface of the button 904 and has a thickness uniformity, so the operator can clearly view and use, especially when the angle between the viewing angle and the normal line of the button 904 front view is large, the pattern layer 5 can still be seen correctly. 〇 Content. The manufacturing process is simplified, and the process of spraying abrasion-resistant materials and the process of laser engraving are adopted, so the yield can be greatly improved. In addition, 'the pattern layer 500 on the surface of the button 904 can be kept intact and not abraded', so the service life of the button 904 can be increased. The compactness of the button 904 is excellent, so the button 904 has a better texture. At the same time, when carrying out metal coatings 9 paper sizes are applicable to Chinese National Standard (CNS) A4 specifications (210 X 297 Gongchu) (read the precautions on the back before filling this page)-, k ----- =- --Order --------- Line l · Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 'Gloss' can compete in the market. When the button 9 0 4 is depressed ', a clear-cut action and better flexibility are produced. The present invention is explained above with the preferred embodiments, and is only used to help understand the implementation of the present invention. It is not intended to limit the spirit of the present invention, and those skilled in the art will not depart from the spirit of the present invention after understanding the spirit of the present invention. Within the scope of the spirit, when it can be modified and replaced with equivalent changes, its patent protection will depend on the scope of the attached patent application and its equivalent fields. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is sized for China National Standard (CNS) A4 (210 X 297 public love)