201218914 六、發明說明： ' 【發明所屬之技術領域】 [0001] 本發明係關於一種電子裝置外殼及其製作方法。 [0002] 【先前技術】 於電子裝置外殼表面的顯著位置，一般都設有設備標誌 ，比如商標、型號或特別的圖形或字元，以便用戶識別 或作為廣告宣傳用途。比如手機顯示幕上方的商家標誌 ，會被盡可能設計得醒目與美觀，以彰顯商家品質與實 〇 [0003] 力，吸引消費者注意力，贏取消費者認同。 然，相對於電子裝置本身，外殼表面的標誌一般較小， 且一般係藉由印刷油墨或喷塗油漆的方式來形成。油墨 與油漆形成的標誌耐磨性較差，容易被磨損破壞。又， 油墨和油漆形成的標誌往往因亮度不夠、缺乏金屬質感 而難以吸引消費者注意，使得所述標誌的重要功能不能 得到有效發揮。 〇 _] 【發明内容】 有鑒於此，有必要提供一種具有耐磨，而且視覺效果顯 著的標誌的電子裝置外殼。 [0005] 另，還有必要提供一種由上述電子裝置外殼的製作方法 0 [0006] 一種電子裝置外殼，包括塑膠基體，該電子裝置外殼還 包括底漆層、金屬色真空鍍膜層及透明面漆層，該底漆 層形成於該基體的外表面，該真空鍍膜層形成於該底漆 層上，該真空鍍膜層於該電子裝置外殼上形成圖案，該 099136255 表單编號A0101 第3頁/共9頁 0992063397-0 201218914 面漆層形成於該真空鍍膜層及未被該真空鍍膜層覆蓋的 底漆層上。 [0007] —種電子裝置外殼的製作方法，包括如下步驟： [0008] 提供塑膠基體； [0009] 於該基體的外表面上形成底漆層； [0010] 於該底漆層上形成金屬色真空鍍膜層； [0011] 於該真空鍍膜層上需要形成圖案的位置印刷退鍍保護層 ，該退鍍保護層具有所需圖案的形狀； [0012] 藉由化學腐蝕去除所述退鍍保護層覆蓋區域以外的真空 鍍膜層，以於該基體表面得到所需的圖案； [0013] 於該剩餘的真空鍍膜層和未被真空鍍膜層覆蓋的底漆層 上形成面漆層。 [0014] 上述方法製得的電子裝置外殼表面的標誌、圖案或字元 等圖案由金屬色真空鍍膜層形成，既具有較高的光亮度 ，又具有金屬質感，顯著的視覺效果，而且耐磨性能較 好。 【實施方式】 [0015] 請參閱圖1，本發明較佳實施例的電子裝置外殼10包括基 體11、底漆層13、金屬色真空鍍膜層15和透明面漆層17 。真空鍍膜層15於該電子裝置外殼10上形成圖案，比如 標誌、圖形及字元等。 [0016] 基體11由塑膠製成。底漆層13形成於基體11的外表面 110上。底漆層13用於增加所述真空鍍膜層15的附著力。 099136255 表單編號A0101 第4頁/共9頁 0992063397-0 201218914 底漆層13的厚度大約為6〜12 β m ❹ 真空鍍膜層15形成於底漆層13上。為了不影響使用該電 子裝置外威10的電子裝置的射頻發射和接收功能，真空 鍍膜層15可為不導電的不連續鍍膜層，其具有金屬的外 觀效果。較佳地，真空鍍膜層15的顏色為亮白色，以使 真空鍍膜層15形成的標誌、圖形、字元等突顯於電子裝 置外殼10表面。 面漆層17形成於該真空鍍膜層i5以及未被真空鍍膜層15 覆蓋的底漆層13上，面漆層if的厚度大約為， 其用於保護真空鍍膜層15不被磨損。 所述底漆層13和面漆層17可為紫外光（UV)固化漆，亦 可為熱固化漆，本實施例的底漆層13和面漆層1 7均為紫 外光（UV)固化漆。 [0020] 上述電子裝置外殼10的製作方法主要包括如下步驟： [0021] 提供塑膠基體11。 [0022] 對該基體11進行清洗。 [0023] 於該基體U的外表面110上藉由喷塗或浸塗的方式形成所 述底漆層13。 [0017] [0018] [0019] 099136255 [0024] 藉由真空蒸鍍或濺鍍方式於該底漆層13上形成金屬色真 空鍍膜層15。真空鍍臈層15可以覆蓋整個底漆層13，亦 可只形成於底漆層13待形成圖案的局部區域。 [0025] 於該真空鍵膜層15上需要形成圖案的位置印刷退鍍保護 層，該退鍍保護層具有所需圖案的形狀。該退鍍保護層 表單編號A0101 第5頁/共9頁 〇992〇( 201218914 由耐化學腐#性材料組成，比如可採用对酸鹼塗料或油 墨，如聚醯胺油墨。 [0026] 退鍍處理，即藉由化學腐蝕去除所述退鍍保護層覆蓋區 域以外的真空鍍膜層15，然後去除退鍍保護層，即可於 基體11表面得到所需的具有金屬質感的標誌、圖形或字 元。該化學腐蝕可採用酸性或鹼性腐蚀液，如氫氧化鈉 或鹽酸等。 [0027] 於該剩餘的真空鍍膜層15和未被真空鍍膜層覆蓋的底漆 層13上形成一面漆層17。 [0028] 上述方法製得的電子裝置外殼10表面的標誌、圖案或字 元等圖案既具有較高的光亮度，又具有金屬質感，具有 顯著的視覺效果；而且具有較好的耐磨性能。 【圖式簡單說明】 [0029] 圖1為本發明較佳實施例電子裝置外殼的剖視示意圖。 【主要元件符號說明】 [0030] 電子裝置外殼：10 [0031] 基體：11 [0032] 外表面：110 [0033] 底漆層：13 [0034] 真空鍍膜層：15 [0035] 面漆層：17 099136255 表單編號A0101 第6頁/共9頁 0992063397-0201218914 VI. Description of the invention: 'Technical field to which the invention pertains. [0001] The present invention relates to an electronic device housing and a method of fabricating the same. [Prior Art] In a prominent position on the surface of the casing of an electronic device, a device mark such as a trademark, a model number or a special graphic or character is generally provided for the user to recognize or use for advertising purposes. For example, the merchant logo on the top of the mobile phone display screen will be designed to be as eye-catching and beautiful as possible, in order to highlight the quality and reality of the business [0003], attract consumers' attention and win the consumer's approval. However, the marking of the surface of the outer casing is generally small relative to the electronic device itself, and is generally formed by printing ink or spraying paint. The mark formed by the ink and the paint is poor in abrasion resistance and is easily damaged by abrasion. Moreover, the marks formed by inks and paints tend to attract consumers' attention due to insufficient brightness and lack of metallic texture, so that the important functions of the logo cannot be effectively utilized. _ _] [Summary of the Invention] In view of the above, it is necessary to provide an electronic device casing having a wear-resistant and visually significant mark. [0005] In addition, it is also necessary to provide a method for manufacturing the electronic device casing. [0006] An electronic device casing includes a plastic substrate, and the electronic device casing further includes a primer layer, a metallic color vacuum coating layer and a transparent topcoat. a layer, the primer layer is formed on an outer surface of the substrate, the vacuum coating layer is formed on the primer layer, and the vacuum coating layer forms a pattern on the electronic device casing, the 099136255 Form No. A0101 Page 3 / Total Page 9 0992063397-0 201218914 A topcoat layer is formed on the vacuum coating layer and the primer layer not covered by the vacuum coating layer. [0007] A method of fabricating an electronic device housing, comprising the steps of: [0008] providing a plastic substrate; [0009] forming a primer layer on an outer surface of the substrate; [0010] forming a metallic color on the primer layer a vacuum coating layer; [0011] printing a deplating protective layer on the vacuum coating layer at a position where a pattern is to be formed, the deplating protective layer having a shape of a desired pattern; [0012] removing the deplating protective layer by chemical etching A vacuum coating layer outside the coverage area to obtain a desired pattern on the surface of the substrate; [0013] A topcoat layer is formed on the remaining vacuum coating layer and the primer layer not covered by the vacuum coating layer. [0014] The pattern, the pattern or the character of the surface of the electronic device casing obtained by the above method is formed by a metal color vacuum coating layer, which has high brightness, metal texture, remarkable visual effect, and wear resistance. Good performance. [Embodiment] Referring to Figure 1, an electronic device housing 10 of a preferred embodiment of the present invention includes a substrate 11, a primer layer 13, a metallic color vacuum coating layer 15, and a transparent topcoat layer 17. The vacuum coating layer 15 is patterned on the electronic device housing 10, such as logos, graphics, and characters. [0016] The base 11 is made of plastic. A primer layer 13 is formed on the outer surface 110 of the substrate 11. The primer layer 13 serves to increase the adhesion of the vacuum coating layer 15. 099136255 Form No. A0101 Page 4 of 9 0992063397-0 201218914 The thickness of the primer layer 13 is approximately 6 to 12 β m 真空 The vacuum coating layer 15 is formed on the primer layer 13. In order not to affect the radio frequency transmitting and receiving functions of the electronic device using the electronic device, the vacuum coating layer 15 may be a non-conductive discontinuous coating layer having a metallic appearance. Preferably, the color of the vacuum coating layer 15 is bright white so that marks, figures, characters, and the like formed by the vacuum coating layer 15 are prominent on the surface of the electronic device casing 10. A topcoat layer 17 is formed on the vacuum coating layer i5 and the primer layer 13 which is not covered by the vacuum coating layer 15. The thickness of the topcoat layer is approximately that it is used to protect the vacuum coating layer 15 from abrasion. The primer layer 13 and the topcoat layer 17 may be an ultraviolet (UV) curing lacquer or a heat curing lacquer. The primer layer 13 and the topcoat layer 17 of the embodiment are both ultraviolet (UV) curing. paint. [0020] The manufacturing method of the electronic device casing 10 mainly includes the following steps: [0021] A plastic substrate 11 is provided. [0022] The substrate 11 is cleaned. [0023] The primer layer 13 is formed on the outer surface 110 of the substrate U by spraying or dip coating. [0019] [0024] [0024] A metallic color vacuum coating layer 15 is formed on the primer layer 13 by vacuum evaporation or sputtering. The vacuum rhodium layer 15 may cover the entire primer layer 13 or may be formed only in a partial region of the primer layer 13 to be patterned. [0025] A deplating protective layer is printed on the vacuum key film layer 15 at a position where a pattern is to be formed, and the deplating protective layer has a shape of a desired pattern. The deplating protective layer form No. A0101 Page 5 of 9 〇992〇 (201218914) It is composed of chemical resistant material, such as acid-base coating or ink, such as polyamide ink. [0026] Processing, that is, removing the vacuum coating layer 15 outside the coverage area of the deplating protective layer by chemical etching, and then removing the deplating protective layer, thereby obtaining a desired metal-like mark, pattern or character on the surface of the substrate 11. The chemical etching may be an acidic or alkaline etching solution such as sodium hydroxide or hydrochloric acid, etc. [0027] A lacquer layer is formed on the remaining vacuum coating layer 15 and the primer layer 13 not covered by the vacuum coating layer. [0028] The pattern, the pattern, the character or the like on the surface of the electronic device casing 10 obtained by the above method has high brightness, metal texture, and remarkable visual effect; and has good wear resistance. BRIEF DESCRIPTION OF THE DRAWINGS [0029] Fig. 1 is a cross-sectional view showing the outer casing of an electronic device according to a preferred embodiment of the present invention. [Description of main components] [0030] Electronic device housing: 10 [0031] Base: 11 [0032 ] Outer surface: 110 [0033] Primer layer: 13 [0034] Vacuum coating layer: 15 [0035] Topcoat layer: 17 099136255 Form number A0101 Page 6 of 9 0992063397-0