TWI574291B - Key structure and method of manufacturing keycap of button - Google Patents
Key structure and method of manufacturing keycap of button Download PDFInfo
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- TWI574291B TWI574291B TW104130590A TW104130590A TWI574291B TW I574291 B TWI574291 B TW I574291B TW 104130590 A TW104130590 A TW 104130590A TW 104130590 A TW104130590 A TW 104130590A TW I574291 B TWI574291 B TW I574291B
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- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000010410 layer Substances 0.000 claims description 109
- 239000011241 protective layer Substances 0.000 claims description 71
- 238000010147 laser engraving Methods 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 10
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- -1 polyethylene Polymers 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 6
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 5
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- 239000004203 carnauba wax Substances 0.000 claims description 5
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 5
- 229920001903 high density polyethylene Polymers 0.000 claims description 5
- 239000004700 high-density polyethylene Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 235000013869 carnauba wax Nutrition 0.000 claims description 4
- 239000010954 inorganic particle Substances 0.000 claims description 4
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000004595 color masterbatch Substances 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000012748 slip agent Substances 0.000 claims description 3
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 claims description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
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- 238000005260 corrosion Methods 0.000 claims description 2
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- 229920005992 thermoplastic resin Polymers 0.000 claims description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims 2
- 239000000499 gel Substances 0.000 claims 2
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- 229940063655 aluminum stearate Drugs 0.000 claims 1
- 238000010329 laser etching Methods 0.000 claims 1
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- 229910052623 talc Inorganic materials 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000004224 protection Effects 0.000 description 4
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- 239000003086 colorant Substances 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 239000003223 protective agent Substances 0.000 description 1
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- 238000002834 transmittance Methods 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Push-Button Switches (AREA)
Description
本發明乃是關於一種按鍵結構及製造按鍵之鍵帽的方法，特別是指一種具有以雷射雕刻方式形成的鍵帽之按鍵結構。 The present invention relates to a button structure and a method of manufacturing a keycap of a button, and more particularly to a button structure having a keycap formed by laser engraving.
用於輸入文字或符號的按鍵廣泛地使用於各樣的電子裝置，例如電腦的鍵盤、可攜式電子裝置的按鍵結構…等。大部分的按鍵的文字及符號是以印刷的方式形成於鍵帽的頂面。此種方式需要事先在印刷機器印好各種的文字及符號，容易造成庫存的負荷。 The keys for inputting characters or symbols are widely used in various electronic devices such as a keyboard of a computer, a key structure of a portable electronic device, and the like. Most of the keys and symbols are formed on the top surface of the keycap in a printed manner. In this way, various characters and symbols need to be printed on the printing machine in advance, which is likely to cause an inventory load.
為著改善庫存的負荷，有的按鍵在確定出貨前，再依需要的文字及符號，例如不同國家的語言，以雷射的方式雕刻於按鍵上。藉此可以減少庫存的壓力。 In order to improve the load of the inventory, some buttons are laser-engraved on the buttons before the shipment is confirmed, according to the required words and symbols, such as the language of different countries. This can reduce the pressure on inventory.
然而，雷射雕刻的方式容易損傷按鍵，特別是無法精準控制雕刻的深度，容易傷及按鍵本體或字面層(或底塗層)。因此習知技術為著保護字面層，通常另外再形成一位於字面層表面的保護層，以避免雷射的傷害，此種方式不僅費時費工，又增加按鍵的厚度。 However, the way of laser engraving is easy to damage the keys, especially the depth of the engraving cannot be precisely controlled, and it is easy to damage the button body or the letter layer (or the undercoat layer). Therefore, the conventional technology protects the letter layer, and usually forms a protective layer on the surface of the surface layer to avoid the damage of the laser. This method not only takes time and labor, but also increases the thickness of the button.
本發明所要解決的技術問題，在於提供一種按鍵結構，字色層不需要另外形成一保護層，以減少鍵帽的厚度。 The technical problem to be solved by the present invention is to provide a button structure, and the word color layer does not need to additionally form a protective layer to reduce the thickness of the key cap.
為解決上述技術問題，根據本發明之其中一種方案，提供一種按鍵結構係包括數個鍵帽，每一該鍵帽包括一字鍵本體及一面 色層，字鍵本體的外觀顯示一第一顏色；面色層的外觀顯示一不同於該第一顏色的第二顏色，該面色層設於該字鍵本體上方；其中該面色層具有一鏤空部，其中該第一顏色外露於該鏤空部內。 In order to solve the above technical problem, according to one aspect of the present invention, a key structure is provided that includes a plurality of key caps, each of which includes a key body and a side a color layer, the appearance of the word key body displays a first color; the appearance of the color layer displays a second color different from the first color, the color layer is disposed above the word key body; wherein the color layer has a hollow portion , wherein the first color is exposed in the hollow portion.
此外，本發明要解決的技術問題，更在於提供一種製造按鍵之鍵帽的方法，字色層不需要另外形成一保護層；此外，較佳地，鍵帽經過雷射雕刻後，表面沒有凹陷的部份。 In addition, the technical problem to be solved by the present invention is to provide a method for manufacturing a key cap of a button, wherein the color layer does not need to additionally form a protective layer; moreover, preferably, after the key cap is laser-engraved, the surface has no depression. Part of it.
為解決上述技術問題，根據本發明之其中一種方案，提供一種製造按鍵之鍵帽的方法，包括下列步驟： 形成一字鍵本體，其外觀顯示一第一顏色； 形成一面色層，其外觀顯示一不同於該第一顏色的第二顏色，該面色層設於該字鍵本體上方； 形成一透明的保護層，覆蓋於該面色層；及 以雷射通過該保護層以蝕刻出一位於該面色層的鏤空部，該鏤空部位於該保護層底面之下。 In order to solve the above technical problem, according to one aspect of the present invention, a method of manufacturing a key cap of a button is provided, comprising the following steps: Forming a word key body, the appearance of which displays a first color; Forming a color layer, the appearance of which displays a second color different from the first color, the color layer is disposed above the body of the word key; Forming a transparent protective layer covering the color layer; and A laser is passed through the protective layer to etch a hollow portion of the face layer, the hollow portion being located below the bottom surface of the protective layer.
本發明至少具有以下有益效果：本發明的字色層可以不需要另外形成一保護層，可以減少鍵帽的厚度。 The present invention has at least the following advantageous effects: the color layer of the present invention may not need to additionally form a protective layer, and the thickness of the key cap may be reduced.
為了能更進一步瞭解本發明為達成既定目的所採取之技術、方法及功效，請參閱以下有關本發明之詳細說明、圖式，相信本發明之目的、特徵與特點，當可由此得以深入且具體之瞭解，然而所附圖式與附件僅提供參考與說明用，並非用來對本發明加以限制者。 In order to further understand the technology, method and effect of the present invention in order to achieve the intended purpose, reference should be made to the detailed description and drawings of the present invention. The drawings and the annexed drawings are intended to be illustrative and not to limit the invention.
10‧‧‧字鍵本體 10‧‧‧word key ontology
20‧‧‧字色層 20‧‧‧ color layer
30‧‧‧面色層 30‧‧‧Face layer
40‧‧‧保護層 40‧‧‧Protective layer
50‧‧‧鏤空部 50‧‧‧镂空部
L1、L2‧‧‧雷射 L1, L2‧‧‧ laser
圖1為本發明之按鍵結構第一實施例的剖視圖。 BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing a first embodiment of a key structure of the present invention.
圖2為本發明之按鍵結構第二實施例的剖視圖。 Figure 2 is a cross-sectional view showing a second embodiment of the key structure of the present invention.
圖3為本發明之按鍵結構第三實施例的剖視圖。 Figure 3 is a cross-sectional view showing a third embodiment of the key structure of the present invention.
圖4為本發明之按鍵結構第四實施例的剖視圖。 Figure 4 is a cross-sectional view showing a fourth embodiment of the key structure of the present invention.
圖5為本發明之按鍵結構第五實施例的剖視圖。 Figure 5 is a cross-sectional view showing a fifth embodiment of the key structure of the present invention.
請參考圖1，為本發明之按鍵結構第一實施例的剖視圖。本實施例提供一種按鍵結構，其至少包括數個鍵帽。在圖1中以一個鍵帽代表，每一該鍵帽包括一字鍵本體10，字鍵本體10的外觀顯示一第一顏色，第一顏色可以是較淡的顏色，例如白色、灰色或淡黃色。鍵帽還具有一面色層30，面色層30的外觀顯示一不同於該第一顏色的第二顏色，該面色層30設於該字鍵本體10上方。第二顏色可以是較深的顏色，例如黑色或深藍色。 1 is a cross-sectional view showing a first embodiment of a key structure of the present invention. This embodiment provides a button structure including at least a plurality of key caps. 1 is represented by a key cap, each of the key caps includes a key body 10, the appearance of the key body 10 displaying a first color, and the first color may be a lighter color such as white, gray or light. yellow. The keycap also has a color layer 30. The appearance of the color layer 30 displays a second color different from the first color. The color layer 30 is disposed above the word key body 10. The second color can be a darker color, such as black or dark blue.
本實施例是在字鍵本體10的上表面塗佈一具有上述第一顏色的字色層20，第一顏色是字色層20提供。在此種情況下，該面色層30設於該字色層20的上表面。然而，本發明的第一顏色可以是由字鍵本體10提供，將於後面的實施例舉例描述。本實施例的鍵帽進一步具有一設於該面色層30外表面的保護層40。保護層40較佳為透明供露出第二顏色，功用在於保護鍵帽。 In this embodiment, a word color layer 20 having the above-mentioned first color is applied on the upper surface of the word key body 10, and the first color is provided by the word color layer 20. In this case, the color layer 30 is provided on the upper surface of the color layer 20. However, the first color of the present invention may be provided by the word key body 10, as will be exemplified in the following embodiments. The keycap of this embodiment further has a protective layer 40 disposed on the outer surface of the face color layer 30. The protective layer 40 is preferably transparent to expose the second color for the purpose of protecting the keycap.
本發明之按鍵結構製造過程的最後步驟，利用雷射雕刻鍵帽以形成一鏤空部50，穿透該面色層30以露出該第一顏色。鏤空部50的外形是配合按鍵所需要的語言。本實施例的該鏤空部50由保護層40的外表面穿過該面色層30且延伸至該字色層20的頂面。當需要某種語言的按鍵時，再將按鍵進行最後雕刻的流程以形成文字及圖樣，此種方式的優點之一在於不需要事先印刷按鍵需要的語言，不會有庫存某種語言的按鍵的情形。 In the final step of the key structure manufacturing process of the present invention, a laser engraved keycap is used to form a hollow portion 50 that penetrates the color layer 30 to expose the first color. The shape of the hollow portion 50 is the language required for the button. The hollow portion 50 of the present embodiment passes through the face color layer 30 from the outer surface of the protective layer 40 and extends to the top surface of the word color layer 20. When a button of a certain language is needed, the final engraving process of the button is performed to form a text and a pattern. One of the advantages of this method is that it does not require the language required for printing the button in advance, and there is no button for stocking a language. situation.
本實施例的字色層20較佳地添加1%至10%重量百分比的保護耐磨劑，藉此在雷射雕刻過程中，保護鍵帽不易被雕刻受損，並通過環境測試。上述保護耐磨劑可以至少包含下列其中一種無機材料：二氧化矽(Silicon Dioxide)、陶瓷粉(ceramic powder)、耐蝕劑(corrosion inhibitor)、環氧樹脂(epoxy resin)、聚丙烯醯胺(Polyacrylamide,PAM)、奈米二氧化矽(nano-silicon dioxide，或稱 白炭黑，粒子尺寸範圍在1~100奈米)、滑石粉(talcum powder)、硬脂酸鋁(Aluminum tristearate)、硬脂酸鈣(calcium stearate)、或低分子熱塑性樹脂(low-molecular thermoplastic resin)。奈米二氧化矽或稱超細二氧化矽，因粒子尺寸超細，具有對抗紫外線的光學性能，能提高材料的抗老化、強度和耐化學性能。 The color layer 20 of the present embodiment is preferably added with 1% to 10% by weight of a protective anti-wear agent, whereby the protective cap is less susceptible to engraving damage during laser engraving and passes environmental testing. The above protective anti-wear agent may comprise at least one of the following inorganic materials: Silicon Dioxide, ceramic powder, corrosion inhibitor, epoxy resin, polyacrylamide. , PAM), nano-silicon dioxide (nano-silicon dioxide, or Silica, particle size range from 1 to 100 nm), talcum powder, aluminum tristearate, calcium stearate, or low molecular weight thermoplastic (low-molecular thermoplastic) Resin). Nano-cerium oxide, or ultra-fine cerium oxide, has ultra-fine particle size and has optical properties against ultraviolet rays, which can improve the anti-aging, strength and chemical resistance of materials.
另外，上述保護層40可以添加1%至10%重量百分比的雷雕輔助物，藉此容易進行雷射雕刻。雷雕輔助物可以為雷雕粉，該雷雕粉為黑色或銀色的色母(color mater batch)。色母為高分子材料著色劑，通常包括顏料(染料)、載體和添加劑…等。此外，該保護層40也可以添加1%至10%重量百分比的耐化學物，該耐化學物至少包含下列其中一種：無機顆粒(inorganic particles)、溶膠凝膠(sol-gel)、聚甲基丙烯酸甲酯(polymethylmethacrylate,PMMA)、聚氨基甲酸酯(polyurethane)、分散劑(dispersant)、抗氧化劑(antioxidant)、紫外線吸收劑(ultraviolet absorber)、聚醚改性有機矽(polyether-modified organic-silicones)、氧化高密度聚乙烯蠟(oxidized high-density polyethylene wax)、巴西棕櫚蠟(carnauba wax)、或聚乙烯蠟(polyethylene wax)。藉此以提高透光率。 In addition, the protective layer 40 may be added with 1% to 10% by weight of a relief engraving aid, thereby facilitating laser engraving. The eagle engraving aid may be a ray carving powder, which is a black or silver color mater batch. The color masterbatch is a polymer material colorant, and generally includes a pigment (dye), a carrier, an additive, and the like. In addition, the protective layer 40 may also add 1% to 10% by weight of chemical resistance, the chemical resistant material comprising at least one of the following: inorganic particles, sol-gel, polymethyl Polymethylmethacrylate (PMMA), polyurethane, dispersant, antioxidant, ultraviolet absorber, polyether-modified organic- Silicones), oxidized high-density polyethylene wax, carnauba wax, or polyethylene wax. Thereby to increase the light transmittance.
請參閱圖2，為本發明之按鍵結構第二實施例的剖視圖。本實施例與上述實施例的差異點在於，本實施例省略面色層。該鍵帽包括字鍵本體10、一具有上述第一顏色的字色層20、及一設於該字色層20外表面的保護層40。字色層20塗佈於字鍵本體10的上表面。保護層40可以染有第二顏色。雷射雕刻移除部分的保護層40，以露出上述具有第一顏色的字色層20。 2 is a cross-sectional view showing a second embodiment of the key structure of the present invention. The difference between this embodiment and the above embodiment is that the present embodiment omits the color layer. The keycap includes a word key body 10, a color layer 20 having the first color, and a protective layer 40 disposed on an outer surface of the color layer 20. The color layer 20 is applied to the upper surface of the word key body 10. The protective layer 40 can be dyed with a second color. The portion of the protective layer 40 is removed by laser engraving to expose the above-described color layer 20 having the first color.
類似於上述第一實施例，字色層20較佳地添加1%至10%重量百分比的保護耐磨劑，藉此在雷射雕刻過程中，保護鍵帽不易被雕刻受損，並通過環境測試。保護耐磨劑的成份可以相同於第 一實施例。 Similar to the first embodiment described above, the color layer 20 is preferably added with 1% to 10% by weight of a protective anti-wear agent, whereby during the laser engraving process, the protective cap is not easily damaged by engraving and passes through the environment. test. The protective agent can be the same as the first An embodiment.
保護層40可以添加1%至10%重量百分比的雷雕輔助物，藉此容易進行雷射雕刻，雷雕輔助物的成份可以相同於第一實施例。保護層40也可以添加提升耐化學性，如1%至10%重量百分比的耐化學物，耐化學物的成份可以相同於第一實施例。 The protective layer 40 may be added with 1% to 10% by weight of a diamond engraving aid, whereby laser engraving is easily performed, and the composition of the laser engraving aid may be the same as in the first embodiment. The protective layer 40 may also be added to enhance chemical resistance, such as 1% to 10% by weight of chemical resistance, and the chemical resistant component may be the same as in the first embodiment.
請參閱圖3，為本發明之按鍵結構第三實施例的剖視圖。本實施例與第二實施例的差異點在於，不僅省略面色層，還省略字色層。第一顏色可以由字鍵本體10提供，藉由將字鍵本體10在射出成型時，依據需求直接染成具有第一顏色，也就是文字或圖樣的顏色，藉此可以省略第一實施例的字色層。保護層40直接塗佈於字鍵本體10的上表面，保護層40染有第二顏色，也就是鍵帽的外在表面顏色，保護層40可以是抗紫外線保護層或抗熱保護層。然後，再利用雷射雕刻移除部分的保護層40以形成一鏤空部50，以使具有第一顏色的字鍵本體10外露於該鏤空部50內。保護層40的材料特性在於高遮光率、耐磨性、容易被雷射雕刻。保護層40可以添加1%至10%重量百分比的雷雕輔助物，藉此容易進行雷射雕刻。雷雕輔助物的成份可以相同於第一實施例。 Please refer to FIG. 3, which is a cross-sectional view showing a third embodiment of the button structure of the present invention. The difference between this embodiment and the second embodiment is that not only the face color layer but also the word color layer is omitted. The first color can be provided by the word key body 10, and the first key color, that is, the color of the text or the pattern, can be directly dyed according to requirements when the word key body 10 is injection molded, thereby omitting the first embodiment. Word color layer. The protective layer 40 is directly applied to the upper surface of the key body 10, and the protective layer 40 is dyed with a second color, that is, an external surface color of the key cap. The protective layer 40 may be an ultraviolet protection layer or a heat protection layer. Then, a portion of the protective layer 40 is removed by laser engraving to form a hollow portion 50 to expose the word key body 10 having the first color within the hollow portion 50. The material properties of the protective layer 40 are high light blocking ratio, abrasion resistance, and easy laser engraving. The protective layer 40 may be added with 1% to 10% by weight of a laser engraving aid, thereby facilitating laser engraving. The composition of the eagle aid can be the same as in the first embodiment.
請參閱圖4，為本發明之按鍵結構第四實施例的剖視圖。本實施例的各層狀結構類似於第一實施例，具有字鍵本體10、具有上述第一顏色的字色層20、面色層30、保護層40。保護層40可以是透明的。本實施例與第一實施例的差異點在於，鏤空部50位於該保護層40的內表面與該字色層20的頂面之間，且向下穿過該面色層30。 Please refer to FIG. 4, which is a cross-sectional view showing a fourth embodiment of the button structure of the present invention. Each layered structure of this embodiment is similar to the first embodiment, and has a word key body 10, a word color layer 20 having the above-described first color, a color layer 30, and a protective layer 40. The protective layer 40 can be transparent. The difference between this embodiment and the first embodiment is that the hollow portion 50 is located between the inner surface of the protective layer 40 and the top surface of the color layer 20 and passes downward through the surface layer 30.
本實施例較佳是配合耐雷雕的保護層40，並配合較薄的面色 層30。其中該面色層30的厚度可以是小於5微米(μm)。另外，為著使保護層40可以讓雷射通過而不被蝕刻，其中該保護層40可以添加1%至10%重量百分比的耐化學物，該耐化學物包括下列至少一種：無機顆粒(如二氧化矽、陶瓷粉…等)、聚甲基丙烯酸甲酯、聚氨基甲酸酯、分散劑、抗氧化劑、紫外線吸收劑滑劑、聚醚改性有機矽、氧化高密度聚乙烯蠟、巴西棕櫚蠟、或聚乙烯蠟。 This embodiment is preferably provided with a protective layer 40 resistant to lightning and is provided with a thinner face layer 30. Wherein the color layer 30 may have a thickness of less than 5 micrometers ( μm ). In addition, in order to allow the protective layer 40 to pass the laser without being etched, the protective layer 40 may be added with 1% to 10% by weight of chemical resistance, the chemical resistant material comprising at least one of the following: inorganic particles (eg Cerium oxide, ceramic powder, etc.), polymethyl methacrylate, polyurethane, dispersant, antioxidant, ultraviolet absorber slip agent, polyether modified organic germanium, oxidized high density polyethylene wax, Brazil Palm wax, or polyethylene wax.
此外，本實施例的一種變化方式，具有第一顏色的字色層20可以使用變色油墨，例如感光、或感溫等油墨，當雷射的高溫照射時，使油墨變色而顯示顏色。 Further, in a variation of the embodiment, the color layer 20 having the first color may use a color changing ink such as a photosensitive or temperature sensitive ink, and when the laser is irradiated at a high temperature, the ink is discolored to display a color.
本實施例還提供一種製造按鍵之鍵帽的方法，包括下列步驟：形成一字鍵本體10，其外觀顯示一第一顏色；形成一具有第一顏色的字色層20於該字鍵本體10的上表面；形成一面色層30，其外觀顯示一不同於該第一顏色的第二顏色，該面色層30覆蓋於該字色層20；形成一透明的保護層40，覆蓋於該面色層30；及以雷射通過該保護層40以蝕刻出一位於該面色層30的鏤空部50，該鏤空部50位於該保護層40底面與該字色層30頂面之間。 The embodiment further provides a method for manufacturing a key cap of a button, comprising the steps of: forming a word key body 10, the appearance of which displays a first color; forming a color layer 20 having a first color on the word key body 10 Forming a top layer; forming a color layer 30 having a second color different from the first color, the surface layer 30 covering the color layer 20; forming a transparent protective layer 40 overlying the color layer 30; and laser passing through the protective layer 40 to etch a hollow portion 50 of the color layer 30, the hollow portion 50 is located between the bottom surface of the protective layer 40 and the top surface of the color layer 30.
其中上述雷射為波長355奈米(nm)的紫外光雷射，或波長532奈米(nm)的綠光雷射，或波長奈米(1064)nm的雷射。 The above laser is a laser light having a wavelength of 355 nanometers (nm), or a green laser having a wavelength of 532 nanometers (nm), or a laser having a wavelength of nanometer (1064) nm.
本實施例的製造方法，為著使雷射透過保護層40並減少對保護層40的破壞，一種較佳的方式，可以利用至少二道的雷射L1、L2一同聚焦於該面色層30上，欲形成鏤空部50的位置。每一道雷射的能量密度小於破壞保護層40的臨界值(或稱閾值)，以使每一道雷射的能量密度在到達面色層30之前低於破壞保護層40的臨界值，因此不會破壞保護層40或者減少破壞保護層40。藉由二道雷射的聚焦，使聚焦處的強度能破壞面色層30而形成鏤空部50。二道雷射L1、L2可以是由不同角度進入保護層40。 In a manufacturing method of the present embodiment, in order to transmit the laser through the protective layer 40 and reduce the damage to the protective layer 40, a preferred method can focus on the color layer 30 by using at least two lasers L1 and L2. The position of the hollow portion 50 is to be formed. The energy density of each laser is less than the critical value (or threshold) of the damage protection layer 40, so that the energy density of each laser is lower than the critical value of the damage protection layer 40 before reaching the color layer 30, and thus will not be destroyed. The protective layer 40 either reduces the damage protection layer 40. By the focus of the two lasers, the intensity of the focus can destroy the surface layer 30 to form the hollow portion 50. The two lasers L1, L2 may enter the protective layer 40 from different angles.
另一種可行的方式，在保護層40具有較大厚度的情形下，本實施例還可以使用單一束雷射通過保護層40時具有較大點光斑，能量密度不足以破壞保護層40，並使雷射適當地聚焦於面色層30，形成較小的點光斑，藉由同一束雷射，光斑越小的地方產生的能量密度越大，以在面色層30形成鏤空部50。 In another feasible manner, in the case that the protective layer 40 has a large thickness, the embodiment can also use a single beam of laser light to pass through the protective layer 40 when there is a large spot, the energy density is insufficient to damage the protective layer 40, and The laser is appropriately focused on the face color layer 30 to form a smaller spot spot. With the same beam of laser light, the energy density generated at a place where the spot size is smaller is larger to form the hollow portion 50 in the face color layer 30.
當雷射雕刻面色層30形成鏤空部50，燒焦的物質可能形成煙霧，一種可行的方式，可以形成一透氣孔由鍵帽的外界通到該鏤空部50，並藉由類似真空的方式，使些煙霧移到鍵帽外面。 When the laser engraving color layer 30 forms the hollow portion 50, the charred material may form smoke. In a feasible manner, a vent hole may be formed to pass from the outside of the key cap to the hollow portion 50, and by a vacuum-like manner, The smoke moves outside the keycap.
請參閱圖5，為本發明之按鍵結構第五實施例的剖視圖。本實施例與第四實施例的差異在於省略字色層。鍵帽具有字鍵本體10、面色層30、及保護層40。保護層40可以是透明的。鏤空部50位於該保護層40的內表面之下，且穿過該面色層30，以露出上述第一顏色。 Please refer to FIG. 5, which is a cross-sectional view showing a fifth embodiment of the button structure of the present invention. The difference between this embodiment and the fourth embodiment is that the character layer is omitted. The keycap has a word key body 10, a color layer 30, and a protective layer 40. The protective layer 40 can be transparent. The hollow portion 50 is located below the inner surface of the protective layer 40 and passes through the face color layer 30 to expose the first color.
本實施例製造按鍵之鍵帽的方法，包括下列步驟：形成一字鍵本體10，其外觀顯示一第一顏色；形成一面色層30，其外觀顯示一不同於該第一顏色的第二顏色，該面色層30設於該字鍵本體上方；形成一透明的保護層40，覆蓋於該面色層30；及以雷射通過該保護層40以蝕刻出一位於該面色層30的鏤空部50，該鏤空部50位於該保護層40底面之下。 The method for manufacturing a key cap of a button according to the embodiment includes the following steps: forming a word key body 10, the appearance of which displays a first color; forming a color layer 30 whose appearance displays a second color different from the first color The color layer 30 is disposed above the word key body; a transparent protective layer 40 is formed to cover the color layer 30; and the protective layer 40 is laserly irradiated to etch a hollow portion 50 of the color layer 30. The hollow portion 50 is located below the bottom surface of the protective layer 40.
本發明之特點及功能在於，字色層20較佳地添加1%至10%重量百分比的保護耐磨劑，藉此在雷射雕刻過程中，保護鍵帽不易被雕刻受損，並通過環境測試。藉此，字色層20可以不需要另外形成一保護層，可以減少鍵帽的厚度。本發明的另外實施例，還可以，省略字色層，甚至可以省略最外面的保護層，可以減少鍵帽的厚度。還有，本發明可以使鏤空部位於最外面的保護層40 的底面下方，因此鍵帽的表面不會有凹陷的鏤空部。外表更為美觀。 The feature and function of the present invention is that the color layer 20 is preferably added with 1% to 10% by weight of a protective anti-wear agent, thereby protecting the key cap from being impaired by engraving during laser engraving and passing through the environment. test. Thereby, the word layer 20 does not need to additionally form a protective layer, and the thickness of the key cap can be reduced. In another embodiment of the present invention, it is also possible to omit the color layer and even omit the outermost protective layer, which can reduce the thickness of the key cap. Also, the present invention allows the hollow portion to be located at the outermost protective layer 40. Below the bottom surface, the surface of the keycap does not have a recessed hollow. The appearance is more beautiful.
以上所述僅為本發明之較佳可行實施例，凡依本發明申請專利範圍所做之均等變化與修飾，皆應屬本發明之涵蓋範圍。 The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.
10‧‧‧字鍵本體 10‧‧‧word key ontology
20‧‧‧字色層 20‧‧‧ color layer
30‧‧‧面色層 30‧‧‧Face layer
40‧‧‧保護層 40‧‧‧Protective layer
50‧‧‧鏤空部 50‧‧‧镂空部
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| TWI765602B (en) * | 2021-03-12 | 2022-05-21 | 致伸科技股份有限公司 | Key switch |
| CN115083818A (en) * | 2021-03-15 | 2022-09-20 | 致伸科技股份有限公司 | Push-button |
| TWI795882B (en) * | 2021-08-23 | 2023-03-11 | 致伸科技股份有限公司 | Keycap structure |
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| TW201712714A (en) | 2017-04-01 |
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