201038330 . 六、發明說明： 【發明所屬之技術領域】 種能夠形成多種顏色 本發明涉及表面塗裝領域，尤其涉及一 之彩色塗層及具有其之電子產品。 【先前技術】 手機、電腦及遊戲機等電子產品之表面通常塗裝成不同顏 色’以滿足消費者之對產品之外觀之要求。201038330. VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to the field of surface coating, and more particularly to a color coating and an electronic product therewith. [Prior Art] The surface of electronic products such as mobile phones, computers, and game machines are usually painted in different colors to satisfy the consumer's requirements for the appearance of the product.
❹ 先前技術中，不同顏色藉由噴塗不同顏色之油漆形成。請參 閱文獻 Electrostatic painting of insulating surfaces，B〇uguila 二先前 In the prior art, different colors were formed by spraying paint of different colors. Please refer to the literature Electrostatic painting of insulating surfaces, B〇uguila II
Coelho, R.; Navarre, D.; Industry Applications, IEEE Transactions on Volume 29, Issue 4, July-Aug. 1993 Page(s):798 - 801 〇 然而，這些油漆通常含有具有毒性之有機物質，造成環境污 ‘並損害人之身體健康。此外，由於噴塗之油漆與電子產品基體 附著力不強，電子產品於曰常使用過程中，難免對其表面產生刮 擦’被刮擦部分喷塗油漆脫落，從而使得電子產品外觀變得醜陋。 【發明内容】 有鑑於此，提供一種不對環境造成污染且對人體無害，並不 易於脫落且能夠呈現顏色更純彩色塗層實為必要。 〇 以下將以實施例說明一種彩色塗層及具有該彩色塗層之電子 產品。 一種彩色塗層，用於設置於基體表面，所述彩色塗層包括依 次堆疊之第一金屬層、第一顏色控制層、第二金屬層、第二顏色 控制層、第三金屬層及吸收層。所述第一金屬層用於透射部分入 射光線並反射部分入射光線形成第一反射光線，所述第二金屬層 用於透射部分入射光線並反射部分入射光線形成第二反射光線， 所述第三金屬層用於透射部分入射光線並反射部分入射光線形成 4 201038330 第射光v線戶斤述吸收層形成於基體表面，戶斤述吸收層用於吸 =第三金屬層透射之人射光線避免所述人射光線發生反射，所述 * ?、顏色控制於控㈣-反射光線與第三反射光線之間之光 - 程差，所述第二顏色控制層用於控制第二反射光線與第三反射光 間之絲差，以使第—反射规、第三人射光線及第三反射 光線相互之間發生干涉，從而使得彩色塗層呈現顏色。 、，一種電子產品，其包括產品本體、殼體以及上述之彩色塗層， 所述產π 口本體用於實現電子產品之功能，所述殼體包圍所述產品 本體’用於保護所述產品本體，所述彩色塗層形成於殼體表面， 0 用於使得電子產品呈現顏色。 仇與先前技術相較，本技術方案中之彩色塗層不對環境造成污 柒且對人體無告，並不易於脫落。且本技術方案中之彩色塗層具 有多層金屬層及顏色控制層，光線入射至彩色塗層結構之過程 中，產生了複數具有相互干涉條件之反射光線，所述多種反射光 線發生干涉後，使得從彩色塗層出射反射光線波長範圍較窄，從 而使得彩色塗層呈現之顏色更純。具有該彩色塗層之電子產品亦 可以呈現彩色。 【實施方式】 D 下面結合附圖及複數實施例對本技術方案提供之彩色塗層及 具有該彩色塗層之電子產品作進一步說明。 々請參閱圖1，本技術方案第一施例提供之彩色塗層100，其包 括第一金屬層120、第一顏色控制層130、第二金屬層14〇、第二 顏色控制層150、第三金屬層Μ0及吸收層17〇。 彩色塗層100形成於基體1〇之表面11上。基體1〇可以為各 種待外表面形成色彩之產品，如各種電子產品之外殼，基體1〇可 =為各種材料製成，如玻璃、金屬、陶瓷、合金、玻璃陶瓷及塑 膠等。所述塑膠可為聚碳酸酯或聚甲基丙烯酸甲酯等。 201038330 -箱層120、>第—顏色控制層130、第二金屬層140、第 於笛-」ί 150與第二金屬層160依次堆疊，吸收層170形成 1 Γί 與基體1G之間。第—金屬層120、第二金屬層 它們之屬層160之材質可為鋁、銅、鎳、鉻或鎳鉻合金等， ία3至奈米’可以藉由液相沈積法或物理氣相沈 金屬層12G、第二金屬層⑽及第三金屬層⑽ 賴其表面之光線部分被反射部分被透射。這係 二金屬原子中之外層電子（自由電子）並沒有被原子核， ❹ Ο 波，ΪΓ自由電子吸收了光波之能量，而產生相同 '率之震盛’此錢又放出朗來光線相_率之光，即，產生 =射光，這種電子之震魏著金驗度之增加而減,卜使電子 ίίίΐ幅ΐ小到原來之1/e (e為自_數）時金屬之厚度，稱 之牙棘度、。金屬層之厚度小於穿透深度，金屬層可以 ㈣部》人縣線’當金朗之厚度大於穿透深度，金屬只反射 心ΐ一顏色控制層13G及第二顏色㈣層⑼分顧於藉由控 13們厚度’從而控辦色塗層1Θ°之顏色。帛—顏色控制層⑽ .Γ顏色控繼15G可藉由丨崎法、錢化學氣相沈積法或化 予液相沈積法形成，其厚度為5G至麵奈米，第―顏色控制層 一3^及第二顏色控制層15〇之材質可以為二氧化碎、五氧化二銘、 二氧化鈦、五氧化二鈮、氟化鎂或氧化鋁等。 吸收層170用於吸收透過第三金屬| 16〇照射至其表面之光 線，使得照射到其表面之光線被吸收層⑽吸收不發生反射，並 使得所述光線不能人射至基體1Q。吸收層Μ可以*厚度大於穿 透深度之金屬膜域’亦可為具有多層結構之具有魏光功能之 膜系組成。 入射光線照射到彩色塗層1〇〇時，入射光線首先照射第一金 屬層120，入射光線部分光線被反射，形成第一反射光線L1。第 -金屬層120透射之入射光、線射入第一顏色控制層13〇，並透過第 6 201038330 ，. • 一顏色控制層130入射至第二金屬層140。所述入射光線入射至第 二金屬層140時，又有部分入射光線被反射，形成第二反射光線 " L2。所述從第二金屬層140透射之入射光線射入第二顏色控制層 , 150，並透過第二顏色控制層150入射至第三金屬層ι6〇。入射至 第三金屬層160之入射光線部分被反射，形成第三反射光線L3， 部分入射光線被第三金屬層160透射，透射之光線入射至吸收層 170，被吸收層170吸收。 當發生干涉光線之間之光程差滿足某種顏色光波波長之一半 之倍數之條件時’就會產生某種顏色之光波震動之增強或減弱。 ❹所述第一反射光線L1、第二反射光線L2及第三反射光線L3具有 相同之頻率’且它們之間存於光程差，當它們從彩色塗層1〇〇出 射時’第一反射光線L1與第二反射光線L2、第一反射光線L1與 第三反射光線L3及第二反射光線L2與第三反射光線L3均會發生 干涉’發生干涉後顯現之顏色與它們之間之光程差有關。第一反 射光線L1與第二反射光線L2之間之光程差與第一金屬層12〇與 第一顏色控制層130之厚度之與決定，第二反射光線L2與第三反 射光線L3之間之光程差由第二金屬層14〇與第二顏色控制層15〇 之厚度之和決定。當第二金屬層140與第一金屬層12〇之厚度已 經設定後，可以根據需要彩色塗層1〇〇呈現之顏色，設置第一顏 〇 色控制層U0與第二顏色控制層150之厚度，從而使得彩色塗層 100呈現需要之顏色。 θ 一第一反射光線L1與第二反射光線L2、第一反射光線與第 三反射光線L3及第二反射光線L2與第三反射光線13干涉產^之 干涉光線，於從彩色塗層100出射過程中，上述干涉光線又會再 次發生干涉，上述干涉光線之間之光程差滿足某種顏色光波波長 之半之L數之條件時，就會產生某種顏色之光波震動之增強或 減弱，從而觀察彩色塗層100時就呈現彩色。本實施例中，由於 產生了三種反射光線，三種反射光線出射過程中發生多次干涉，' 多次干涉後從彩色塗層100出射之光線波長範圍較窄，從而使得 7 201038330 . 彩色塗層_呈現之顏色較純。 本實施例中之彩色塗層100,由於設置了第一金屬層120、第 • 一顏色控制層130、第二金屬層140、第二顏色控制層150及第三 - 金屬層I60,因此，光線入射至彩色塗層100内時，產生具有干涉 條件之反射光線，反射光線之間經過多次干涉之後，使^寻彩色塗 層100出射之光線之波長範圍較窄，從而使得彩色塗層腦呈現 之顏色更純。 請參見圖2 ’本技；|标方案第二實施例提供之彩色塗層2〇〇，彩 色塗層200之結構與本技術方案第一實施例提供之彩色塗層 Ο 之結構相近’不同之處於於’彩色塗層200之第三金屬層250與 吸收層260之間還形成有第三顏色控制層270與第四金屬層28〇。 第二顏色控制層270與第三金屬層250接觸，第四金屬層280與 吸收層260接觸。第三顏色控制層270之材質可以為二氧化石夕、 五氧化一銘、二氧化鈦、五氧化二銳、氟化鎮或氧化铭等，其厚 度為50至1000奈米。第四金屬層280之材質可為鋁、銅、鎳、 鉻或鎳鉻合金等’第四金屬層280之厚度為0.3至200奈米。 本實施例中，入射光線照射到彩色塗層2〇〇時，入射光線首 先照射第一金屬層210 ’入射光線部分被反射，形成第一反射光線 ❹ L21。其他入射光線透過第一金屬層21〇射入第一顏色控制層 220 ’並透過第一顏色控制層220入射至第二金屬層230。所述入 射光線入射至第二金屬層220時，又有部分入射光線被反射，形 成第二反射光線L22。其他入射光線透過第二金屬層230射入第 二顏色控制層240’並透過第二顏色控制層240入射至第三金屬層 250。入射至第三金屬層250之光線中之部分被反射，形成第三反 射光線L23。其他入射光線透過第三金屬層250射入第三顏色控 制層270 ’並透過第三顏色控制層270入射至第四金屬層280。入 射至第一金屬層280之光線被反射，形成第四反射光線L24，透 過第四金屬層280之光線被吸收層160吸收。第一反射光線L21、 第二反射光線L22、第三反射光線L23及第四反射光線L24具有 8 201038330 '相同之頻率，且它們之間存於光程差，當它們從彩色塗層200出 射時，第一反射光線L21、第二反射光線L22、第三反射光線L23 * 及第四反射光線L24相互之間會發生干涉，發生干涉後顯現之顏 - 色與它們之間之光程差有關。當發生干涉光線之間之光程差滿足 某種顏色光波波長之一半之倍數之條件時，就會產生某種顏色之 ，波震動之增強或減弱。第一反射光線L21、第二反射光線1^22、 第三反射光線L23及第四反射光線L24干涉產生之干涉光線，於 從彩色塗層200出射過程中，上述干涉光線又會再次發生干涉， 上述干涉光線之間之光程差滿足某種顏色光波波長之一半之倍數 之條件時’就會產生某種顏色之光波震動之增強或減弱，從而觀 U 察彩色塗層200時就呈現彩色。 本技術方案中彩色塗層200於光線入射過程中產生更多之反 射光線’所述反射光線發生干涉，從而使得從彩色塗層反射 出之光線發生更多次之干涉，從而使得出射之光線之波長範圍更 窄’從而使得彩色塗層200之顏色更純。 為了使得得到顏色更純之彩色塗層2〇〇，還可以於第四金屬層 280與吸收層260之間繼續形成顏色控制層與金屬層。藉由控制^ 色塗層200中各顏色控制層之厚度，從而得到需要之彩色塗戶结 構。 曰、 Ο 請參閱圖3，本技術方案第三實施例提供一種電子產品3〇〇， 其包括產品本體310、殼體320及形成殼體320表面321之彩色塗 層 330。 產品本體310由晶片、導線線路、螢幕及按鍵等元件組成。 產品本體310用於實現手機、電腦、遊戲機等電子產品功能。 、•忒體320用於保護產品本體31〇。所述殼體320可以由各種材 料製成，如玻璃、金屬、陶瓷、合金、玻璃陶瓷及塑膠等。所述 塑膠可以為聚碳酸酯或聚甲基丙烯酸甲醋等。 彩色塗層330形成於殼體320之表面321’其與本技術方案第 9 201038330 • 一實施例提供之彩色塗層結構100之結構相同，其包括依次堆疊 之第一金屬層331、第一顏色控制層332、第二金屬層333、第二 - 顏色控制層334、第三金屬層335及吸收層336。吸收層336與表 面321接觸。第一金屬層331、第二金屬層333及第三金屬層335 之材質可為鋁、銅、鎳、鉻或鎳鉻合金等，第一金屬層331、第二 金屬層333及第三金屬層335之厚度均為〇.3奈米至2〇〇奈米。第 一顏色控制層332與第二顏色控制層334之材質可以為二氧化 石夕、五氧化一銳、一氧化鈦、五氧化二銳、氟化鎂或氧化紹等， 弟一顏色控制層332與弟一顏色控制層334之厚度為50奈米至 1000奈米。第一金屬層331、第二金屬層333及第三金屬層335 © 分別用於透射部分入射光線並反射部分入射光線，以分別形成第 一反射光線、第二反射光線及第三反射光線。吸收層336用於吸 收第三金屬層335透射之入射光線以避免所述入射光線發生反 射。第一顏色控制層332用於控制上述第一反射光線與第二反射 光線之間之光程差，第二顏色控制層334之厚度用於控制第二反 射光線及第三反射光線之間之光程差，所述第一反射光線、第二 反射光線及第二反射光線之間發生多次干涉，從而使得彩色塗層 220呈現不同之顏色，並且由於第一反射光線、第二反射光線及第 二反射光線之間發生多次干涉，使得從彩色塗層330反射出之干 Q 涉光線之波長範圍較窄，從而使得彩色塗層330之顏色更純。 本實施例中，可以根據實際要求控制第一顏色控制層332與 第一顏色控制層334之厚度，從而使得電子產品3〇〇呈現不同之 顏色。 〜本技術方案中，無需採用噴塗油漆即可實現於基體表面形成 彩色圖案，而且’於實際使用中，上述之彩色塗層不易到落。因 而，本技術方案之彩色塗層結構具有環保及耐用之優點。另外， ^技術方針之彩色塗層具有多層金顧及顏色控制層，光線入 射至衫色塗層結構之過程中’產生了複數具有相互干涉條件之反 射光線’所料種反射光線發生干涉後，使得從彩色塗層出射之 201038330 反射絲讀長_財，從*使得親麵呈現之顏色更純。 利申ί上，已符合發明專利之要件’遂依法提出專 丄ti】本宰之僅為本發明之較佳實施方式，自不能以 明圍。舉凡熟悉本案技藝之人士援依本發 内。a 4杜飾或變化’皆應涵蓋於以下巾請專利範圍 【圖式簡單說明】 〇 圖1係本技術方案第一實施例提供之彩色塗層之示意圖。 圖2係本技術方案第二實施例提供之彩色塗層之示意圖。 圖3係本技術方案第三實施例提供之電子產品之示意圖。 【主要元件符號說明】 〇 基體 表面 彩色涂層 第一金屬層 第一顏色控制層 第二金屬層 第二顏色控制層 第三金屬層 吸收層 第三顏色控制層 第四金屬層 電子產品 10 11、321 100'200'330 120、210、331 130、220、332 140、230、333 150 > 240 > 334 160、250、335 170'260 > 336 270 280 11 300 201038330 產品本體 310 殼體 320 ΟCoelho, R.; Navarre, D.; Industry Applications, IEEE Transactions on Volume 29, Issue 4, July-Aug. 1993 Page(s): 798 - 801 However, these paints usually contain toxic organic substances that cause the environment. Stain 'and damage the health of people. In addition, since the paint and the substrate of the electronic product are not strongly adhered to each other, the electronic product is inevitably scratched on the surface during the use of the 'scratched part of the sprayed paint, which makes the appearance of the electronic product ugly. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a color-free color coating that does not pollute the environment and is harmless to the human body, is not easily peeled off, and can exhibit a color. 〇 A color coating and an electronic product having the color coating will be described below by way of examples. A color coating for being disposed on a surface of a substrate, the color coating comprising a first metal layer, a first color control layer, a second metal layer, a second color control layer, a third metal layer, and an absorption layer stacked in sequence . The first metal layer is configured to transmit a portion of the incident light and reflect a portion of the incident light to form a first reflected light, and the second metal layer is configured to transmit a portion of the incident light and reflect a portion of the incident light to form a second reflected light, the third The metal layer is used for transmitting part of the incident light and reflecting part of the incident light to form 4 201038330. The first light is formed on the surface of the substrate, and the absorption layer is used for the absorption of the third metal layer. The human light ray is reflected, the color is controlled by a light-difference between the controlled (four)-reflected light and the third reflected light, and the second color control layer is used to control the second reflected light and the third The difference between the reflected light is such that the first reflection gauge, the third human radiation, and the third reflected light interfere with each other, thereby causing the color coating to exhibit color. An electronic product comprising a product body, a housing and a color coating as described above, wherein the π port body is used to implement a function of an electronic product, the housing surrounding the product body 'for protecting the product The body is formed on the surface of the casing, and 0 is used to make the electronic product appear color. Compared with the prior art, the color coating in the technical solution does not cause pollution to the environment and is not audible to the human body, and is not easy to fall off. The color coating in the technical solution has a plurality of metal layers and a color control layer, and the light is incident on the color coating structure, and a plurality of reflected rays having mutual interference conditions are generated, and the plurality of reflected rays interfere with each other. The wavelength range of the reflected light from the colored coating is narrower, so that the colored coating exhibits a purer color. Electronic products with this color coating can also be rendered in color. [Embodiment] D The color coating provided by the present technical solution and the electronic product having the color coating are further described below with reference to the accompanying drawings and the plural embodiments. Referring to FIG. 1 , a color coating 100 according to a first embodiment of the present technical solution includes a first metal layer 120 , a first color control layer 130 , a second metal layer 14 , and a second color control layer 150 . The three metal layers Μ0 and the absorbing layer 17〇. A color coating 100 is formed on the surface 11 of the substrate 1 . The substrate 1 can be a product for forming various colors on the outer surface, such as the outer casing of various electronic products, and the substrate can be made of various materials such as glass, metal, ceramic, alloy, glass ceramic and plastic. The plastic may be polycarbonate or polymethyl methacrylate or the like. 201038330 - the tank layer 120, the -th color control layer 130, the second metal layer 140, the first flute - 150 and the second metal layer 160 are sequentially stacked, and the absorption layer 170 is formed between 1 Γί and the substrate 1G. The first metal layer 120 and the second metal layer may be made of aluminum, copper, nickel, chromium or nickel-chromium alloy, and ία3 to nano- may be deposited by liquid deposition or physical vapor deposition. The portion of the layer 12G, the second metal layer (10), and the third metal layer (10) on which the light is applied is partially transmitted by the reflective portion. This is the outer layer of electrons (free electrons) in the two metal atoms that are not nucleated by the nucleus, ❹ ΪΓ, ΪΓ free electrons absorb the energy of the light wave, and produce the same 'rate of the earthquake'. The light, that is, the generation of = light, the vibration of this electron is reduced by the increase of the gold test, and the thickness of the metal is reduced when the electron ίίί ΐ is as small as 1/e (e is the _ number). The tooth spines, The thickness of the metal layer is less than the penetration depth, and the metal layer can be (four) part of the human county line. When the thickness of the gold lang is greater than the penetration depth, the metal only reflects the heart ΐ a color control layer 13G and the second color (four) layer (9) By controlling the thickness of the 13's, the color of the color coating is controlled by 1Θ°.帛—Color control layer (10). Γ Color control followed by 15G can be formed by the method of 丨崎法, Qian chemical vapor deposition or liquid deposition, the thickness of which is 5G to the surface nano, the first color control layer 1-3 And the material of the second color control layer 15〇 may be sulphur dioxide, bismuth pentoxide, titanium dioxide, tantalum pentoxide, magnesium fluoride or aluminum oxide. The absorbing layer 170 serves to absorb the light which is transmitted through the third metal layer 16 to the surface thereof so that the light irradiated to the surface thereof is absorbed by the absorbing layer (10) without being reflected, and the light is not incident on the substrate 1Q. The absorbing layer Μ can be a metal film domain having a thickness greater than the penetration depth, and can also be a film system having a multi-layer structure having a Wei light function. When the incident light is irradiated onto the color coating 1 入射, the incident light first illuminates the first metal layer 120, and part of the incident light is reflected to form the first reflected light L1. The incident light and the line transmitted by the first metal layer 120 are incident on the first color control layer 13A, and are transmitted through the sixth 201038330. • A color control layer 130 is incident on the second metal layer 140. When the incident light is incident on the second metal layer 140, part of the incident light is reflected to form a second reflected light " L2. The incident light transmitted from the second metal layer 140 is incident on the second color control layer 150, and is incident on the third metal layer ι6 through the second color control layer 150. The incident light incident on the third metal layer 160 is partially reflected to form a third reflected light L3, and part of the incident light is transmitted through the third metal layer 160, and the transmitted light is incident on the absorption layer 170 and absorbed by the absorption layer 170. When the optical path difference between the interfering rays satisfies the condition of a multiple of one-half of the wavelength of the light of a certain color, an increase or decrease in the vibration of the light of a certain color occurs. The first reflected light L1, the second reflected light L2, and the third reflected light L3 have the same frequency 'and there is an optical path difference between them, and when they are emitted from the color coating 1 'first reflection The light L1 and the second reflected light L2, the first reflected light L1 and the third reflected light L3, and the second reflected light L2 and the third reflected light L3 both interfere with each other: the color appearing after interference and the optical path between them Poor. The optical path difference between the first reflected light L1 and the second reflected light L2 is determined by the sum of the thicknesses of the first metal layer 12 and the first color control layer 130, and between the second reflected light L2 and the third reflected light L3. The optical path difference is determined by the sum of the thicknesses of the second metal layer 14A and the second color control layer 15A. After the thickness of the second metal layer 140 and the first metal layer 12 is set, the thickness of the first color control layer U0 and the second color control layer 150 may be set according to the color of the color coating 1 需要 required. Thus, the color coating 100 is rendered in the desired color. θ a first reflected light L1 and a second reflected light L2, the first reflected light and the third reflected light L3, and the second reflected light L2 and the third reflected light 13 interfere with the interference light, and are emitted from the color coating 100 In the process, the interference light again interferes again, and when the optical path difference between the interference rays satisfies the L number of half of the wavelength of a certain color light wave, the light wave vibration of a certain color is enhanced or weakened. Thus, when the color coating 100 is observed, color is exhibited. In this embodiment, since three kinds of reflected light are generated, multiple interferences occur in the three reflected light exiting processes, and the wavelength range of light emitted from the color coating layer 100 after multiple interferences is narrow, thereby making 7 201038330. Color coating_ The color presented is purer. In the color coating layer 100 of this embodiment, since the first metal layer 120, the first color control layer 130, the second metal layer 140, the second color control layer 150, and the third metal layer I60 are disposed, the light is When incident into the color coating 100, the reflected light having the interference condition is generated, and after multiple interferences between the reflected light, the wavelength range of the light emitted by the color coating 100 is narrowed, so that the color coated brain is presented. The color is more pure. Referring to FIG. 2 'the present technology;|the color scheme 2〇〇 provided by the second embodiment of the standard scheme, the structure of the color coating layer 200 is similar to the structure of the color coating layer provided by the first embodiment of the technical solution. A third color control layer 270 and a fourth metal layer 28 are also formed between the third metal layer 250 of the color coating 200 and the absorption layer 260. The second color control layer 270 is in contact with the third metal layer 250, and the fourth metal layer 280 is in contact with the absorption layer 260. The material of the third color control layer 270 may be sulphur dioxide, pentoxide, titanium dioxide, pentoxide, fluorinated or oxidized, and has a thickness of 50 to 1000 nm. The material of the fourth metal layer 280 may be aluminum, copper, nickel, chromium or nichrome. The fourth metal layer 280 has a thickness of 0.3 to 200 nm. In this embodiment, when the incident light is irradiated onto the color coating 2, the incident light is first irradiated to the first metal layer 210. The incident light portion is reflected to form the first reflected light ❹ L21. Other incident light rays are incident on the first color control layer 220' through the first metal layer 21 and are incident on the second metal layer 230 through the first color control layer 220. When the incident light is incident on the second metal layer 220, part of the incident light is reflected to form the second reflected light L22. Other incident light rays are incident on the second color control layer 240' through the second metal layer 230 and are incident on the third metal layer 250 through the second color control layer 240. A portion of the light incident to the third metal layer 250 is reflected to form a third reflected light L23. Other incident light rays are incident on the third color control layer 270' through the third metal layer 250 and are incident on the fourth metal layer 280 through the third color control layer 270. The light incident on the first metal layer 280 is reflected to form a fourth reflected light L24, and the light passing through the fourth metal layer 280 is absorbed by the absorption layer 160. The first reflected light L21, the second reflected light L22, the third reflected light L23, and the fourth reflected light L24 have the same frequency of 8 201038330, and there is an optical path difference between them when they are emitted from the color coating 200. The first reflected light L21, the second reflected light L22, the third reflected light L23*, and the fourth reflected light L24 interfere with each other, and the color-color which appears after the interference occurs is related to the optical path difference therebetween. When the optical path difference between the interfering rays satisfies a condition that is one-half of the wavelength of a certain color light wave, a certain color is generated, and the wave vibration is increased or decreased. The interference light generated by the interference of the first reflected light L21, the second reflected light L22, the third reflected light L23 and the fourth reflected light L24, the interference light again interferes during the exit from the color coating 200. When the optical path difference between the interference rays satisfies the condition that one-half of the wavelength of the light wave of a certain color is satisfied, the light wave vibration of a certain color is enhanced or weakened, so that the color coating 200 is colored. In the technical solution, the color coating 200 generates more reflected light during the incident of light, and the reflected light interferes, so that the light reflected from the colored coating interferes more and more, so that the emitted light is The wavelength range is narrower' to make the color of the color coating 200 more pure. In order to obtain a more pure color coating, it is also possible to continue to form a color control layer and a metal layer between the fourth metal layer 280 and the absorption layer 260. By controlling the thickness of each color control layer in the color coating 200, the desired color coating structure is obtained.第三, Ο Referring to FIG. 3, a third embodiment of the present invention provides an electronic product 3A including a product body 310, a housing 320, and a color coating layer 330 forming a surface 321 of the housing 320. The product body 310 is composed of components such as a wafer, a wire line, a screen, and a button. The product body 310 is used to implement functions of electronic products such as mobile phones, computers, and game machines. The body 320 is used to protect the product body 31〇. The housing 320 can be made of various materials such as glass, metal, ceramic, alloy, glass ceramic, plastic, and the like. The plastic may be polycarbonate or polymethyl methacrylate or the like. The color coating layer 330 is formed on the surface 321 ′ of the housing 320. The structure is the same as that of the color coating structure 100 provided in an embodiment of the present invention. The first color layer 331 includes a first metal layer 331 and a first color. The control layer 332, the second metal layer 333, the second-color control layer 334, the third metal layer 335, and the absorption layer 336. The absorbing layer 336 is in contact with the surface 321 . The material of the first metal layer 331, the second metal layer 333 and the third metal layer 335 may be aluminum, copper, nickel, chromium or nickel-chromium alloy, etc., the first metal layer 331, the second metal layer 333 and the third metal layer. The thickness of 335 is 〇.3 nm to 2 〇〇 nanometer. The material of the first color control layer 332 and the second color control layer 334 may be sulphur dioxide, pentoxide, titanium oxide, pentoxide, magnesium fluoride or oxidized, etc. The color control layer 334 has a thickness of 50 nm to 1000 nm. The first metal layer 331, the second metal layer 333, and the third metal layer 335 are respectively used to transmit part of the incident light and reflect part of the incident light to form the first reflected light, the second reflected light, and the third reflected light, respectively. The absorbing layer 336 is for absorbing the incident light transmitted by the third metal layer 335 to prevent the incident light from being reflected. The first color control layer 332 is configured to control the optical path difference between the first reflected light and the second reflected light, and the thickness of the second color control layer 334 is used to control the light between the second reflected light and the third reflected light. a plurality of interferences between the first reflected light, the second reflected light, and the second reflected light, so that the color coating 220 exhibits different colors, and due to the first reflected light, the second reflected light, and the first Multiple interferences occur between the two reflected rays such that the wavelength of the dry Q light reflected from the color coating 330 is narrower, thereby making the color of the color coating 330 more pure. In this embodiment, the thickness of the first color control layer 332 and the first color control layer 334 can be controlled according to actual requirements, so that the electronic product 3 〇〇 exhibits different colors. ~ In the technical solution, a color pattern can be formed on the surface of the substrate without using spray paint, and the color coating described above is not easy to fall in practical use. Therefore, the color coating structure of the technical solution has the advantages of environmental protection and durability. In addition, the color coating of the technical policy has a multi-layered gold color control layer, and the light rays are incident on the structure of the shirt color coating, and the reflected light rays having a plurality of mutually interacting conditions are interfered with each other. The 201038330 reflective silk that emerges from the colored coating reads long, and makes the color of the intimate surface more pure. Lishen ί, has met the requirements of the invention patent 遂 提出 提出 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 Anyone who is familiar with the skills of this case will be assisted by this issue. A 4 Duss or Change 'should be covered by the following patents. [Simplified Schematic] 〇 Figure 1 is a schematic view of a color coating provided by the first embodiment of the present technical solution. 2 is a schematic view of a color coating provided by a second embodiment of the present technical solution. FIG. 3 is a schematic diagram of an electronic product provided by a third embodiment of the present technical solution. [Description of main component symbols] 〇 base surface color coating first metal layer first color control layer second metal layer second color control layer third metal layer absorption layer third color control layer fourth metal layer electronic product 10 321 100'200'330 120, 210, 331 130, 220, 332 140, 230, 333 150 > 240 > 334 160, 250, 335 170 '260 > 336 270 280 11 300 201038330 Product body 310 Housing 320 Ο
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