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TWI288699B - Touch panel with high transmittance - Google Patents

Touch panel with high transmittance Download PDF

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Publication number
TWI288699B
TWI288699B TW95111348A TW95111348A TWI288699B TW I288699 B TWI288699 B TW I288699B TW 95111348 A TW95111348 A TW 95111348A TW 95111348 A TW95111348 A TW 95111348A TW I288699 B TWI288699 B TW I288699B
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TW
Taiwan
Prior art keywords
layer
touch screen
high transmittance
refractive index
transmittance touch
Prior art date
Application number
TW95111348A
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Chinese (zh)
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TW200736047A (en
Inventor
Tsung-Jr Huang
Shiau-Jiun Chen
Bin-Sheng He
Jia-Jr Jang
Sheng-Tzung Chen
Original Assignee
Danotech Co Ltd
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Application filed by Danotech Co Ltd filed Critical Danotech Co Ltd
Priority to TW95111348A priority Critical patent/TWI288699B/en
Publication of TW200736047A publication Critical patent/TW200736047A/en
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Publication of TWI288699B publication Critical patent/TWI288699B/en

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Abstract

A touch panel with high transmittance comprises a substrate and reflection structure with multiple layers is provided. The reflection structure comprises four layers coated on the front side of the substrate, of which refractive index are high, low, high, low sequentially from the nearby side of the substrate. The most outside layer is a protection layer with protection function having refractive index ranging from 1.3 to 1.5, thickness at least 0.1 micron, and hardness 9H by ASTM-D3363 international examination standard. By the design of the protection layer, the touch penal has a transmittance higher than 92% by ASTM-D1003 and the abrasion resistance can be enhanced.

Description

1288699 九、發明說明: 【發明所屬之技術領域】 本發明是有關於一種具有多層反射結構之觸控屏,且特別是有關於一 種以保護層(protective layer)作為該多層反射結構之表面層,以強化抗磨 效果的電容式觸控屏(capacitive touch panel)。 【先前技術】 抗反射光學塗佈層以往運用在建材玻璃、護目鏡等產品,而隨著科技 ^進步該技術已漸轉肚半賴、光剌取頭、液晶顯示器及觸控板等領 域上。在傳統的抗反射光學塗佈層的設計原理巾,塗佈在接觸基板之層面 具有較高的卿率(即H),接下來與該層磁接著另_具有低折曰 i)序的為塗之抗反縣學塗觸讀縣⑽近錄板的方向算起 而台灣專利公告第562736號(與美國專利第6,586,⑻號為 作為抗反射光學塗佈層之表面層的技術,該案之抗 =先4佈層,亦具和層結構,且各層膜之折射麵設計由 ,鼻起依序為L、Η、L、Η。由於透過上述 電 製作於最外層,如此在製作電極時 树叫电層 «表層以暴露出下層之透明導電声^古自知技*需利用超聲波焊接’ 層所面臨之瓶頸。電層而可克服大量生產抗反射光學塗佈 皆未巾’較她_麵魏及職餘上_ , 或編光率:穩=:=層 【發明内容】 有鑑於此,本發明之主要目的在於提供一種高透 塗佈-多層反射結構,其中該多層 =蔓、、土 具抗磨之特性。 厂、備间透辆外,更可透過該保護層而更 本發明之次一目的在提供一種 佈另-多層反射結構’《更進,少反射:=== 5 1288699 - 波干擾(EMI)的功能。 . 本發明之另一目的在提供一種高透光率觸控屏,係塗佈在基板的正面/ 反面的多層反射結構中,可增設一第五層(抗炫光層)(感細_),以 使整體的透光率在可見光波長範圍内的表現可更為穩定。 基於上述主要目的,本發明所提供之一種高透光率觸控屏,包括一基 板及-塗佈於職板正關第—抗反職佈層結構,該層結構的較佳實施 例疋將折射率㉝計^、低、高、低的四層結構(由鄰近於基板的一側算 起),且此四層結構並以第一〜第四層稱之。第-層係為一氧化物層,且有 高於1.5的折射率;第二層係為一氧化物層,具有介於13〜15的折射率; • 帛三層係為一透明傳導層,具有介於1.8〜2.5的折射率,且具有介於2〇〇 〜10000歐姆/單位面積的阻抗值;而第四層係為一保護層,具有介於^〜 1·5的折射率’其厚度至少為〇1微米(㈣,且硬度通過9 a 國際檢驗標準。 此外 '述次要目的,本發類提供之-種高透光率觸控屏,係 將面塗佈—第二抗反射塗佈層結構,其中該結構的較佳實施例是 計為高、低、高的三層結構(由鄰近於基板的一側算起),且 〜第十層稱之。第八層係鱗同於第—層的折射率; 率,^有第Γ層的折射率;而第十層係為等同於第—層的折射 /、有10〜10歐姆/單位面積的阻抗值。 声的發騎提供之—種高透鱗驗屏,在僅於級之正面具四 或可在㈣表* ’ 有:本發明之較佳實施例無術内容,兹配合圖式說明如下: L貫施方式】 具有Ιί板H閱-圖」’本發明之高透光率觸控屏,在第—實施例中, 及一相i於正面7 ^^反射塗佈層結構Α。其中,基板6具有一正面7 、 12 ’其^ 7在此定祕·鱗近於使用者的那一 1288699 —層丨、二第芦反射塗佈層結構A係為一種四層結構,包含一第1288699 IX. Description of the Invention: [Technical Field] The present invention relates to a touch screen having a multilayer reflective structure, and more particularly to a protective layer as a surface layer of the multilayer reflective structure. A capacitive touch panel that enhances the anti-wear effect. [Prior Art] Anti-reflective optical coating layer has been used in building materials glass, goggles and other products in the past, and with the advancement of technology, the technology has gradually turned to the top, the optical pickup, the liquid crystal display and the touch panel. . In the design principle of the conventional anti-reflective optical coating layer, the coating has a high cleavage rate (ie, H) at the level of the contact substrate, and then the magnetic layer with the layer has a lower 曰i) Tu Zhi Kang anti-county study painted in the county (10) near the direction of the board and Taiwan Patent Publication No. 562736 (with US Patent No. 6,586, (8) as the surface layer of the anti-reflective optical coating layer, the case The resistance is the first 4 layers, and also has a layer structure, and the refractive surface of each layer is designed, and the nose is sequentially L, Η, L, Η. Since it is made through the above electricity, it is made at the outermost layer, so when the electrode is fabricated The tree is called the electric layer «the surface layer to expose the transparent conductive sound of the lower layer. The ancient self-knowledge technology * needs the ultrasonic bottle to face the bottleneck faced by the layer. The electric layer can overcome the mass production of anti-reflective optical coating. In view of the above, the main object of the present invention is to provide a highly transparent coating-multilayer reflective structure in which the multilayer = vine, The anti-wear properties of the earthenware. The protective layer can be penetrated through the factory and the spare room. A second object of the present invention is to provide a fabric-multilayer reflective structure 'more advanced, less reflective: === 5 1288699 - wave interference (EMI). Another object of the present invention is to provide a high permeability. The light-rate touch screen is coated on the front/reverse multilayer reflective structure of the substrate, and a fifth layer (anti-glare layer) can be added to make the overall transmittance in the visible wavelength range. The performance of the present invention can be more stable. Based on the above main object, the present invention provides a high transmittance touch screen comprising a substrate and a coating on the front panel of the occupational board - the anti-reverse cloth layer structure, the layer A preferred embodiment of the structure 疋 a refractive index of 33, a low, high, and low four-layer structure (from the side adjacent to the substrate), and the four-layer structure is referred to as the first to fourth layers. The first layer is an oxide layer and has a refractive index higher than 1.5; the second layer is an oxide layer having a refractive index of 13 to 15; • the third layer is a transparent conductive layer , having a refractive index of between 1.8 and 2.5, and having an impedance value of between 2 Å and 10,000 ohms per unit area; The fourth layer is a protective layer having a refractive index of ^~1.5, which has a thickness of at least 微米1 μm ((4), and the hardness passes the 9 a international inspection standard. In addition, 'the secondary purpose, the present class Provided is a high transmittance touch screen which is coated with a second anti-reflective coating layer structure, wherein a preferred embodiment of the structure is a three-layer structure of high, low and high (by proximity) Calculated on the side of the substrate, and ~ the tenth layer is called. The eighth layer is the same as the refractive index of the first layer; the rate, ^ has the refractive index of the second layer; and the tenth layer is equivalent to The first layer of refraction / has an impedance value of 10 to 10 ohms / unit area. The sound of the ride provides a high-through-scale inspection screen, in the level of only the positive mask four or can be in the (four) table * 'has: The preferred embodiment of the present invention has no technical content, and is described as follows: L-through mode] has a high transmittance touch screen of the present invention, in the first embodiment, And a phase i on the front side 7 ^ ^ reflective coating layer structure Α. Wherein, the substrate 6 has a front surface 7 and 12', wherein the fixed layer and the scale are close to the user's 1288699 - the layered crucible and the second reed reflective coating layer structure A are a four-layer structure including one First

^ 3 4 ^ ^-#J 而兮此麻 —€ 2、弟二層3及第四層4配置於基板6之正面7上, =層配置㈣式可利用真空鑛膜(va_⑽ting)的技術,如賤錢 4 二ennf、洛鍛(eVaP〇rati〇n )、化學氣相沈積(Chemical vapor deP〇si_ ^ 或其他赋鍍膜技術^therwetc〇atingtechn〇i〇gies)而形成。 笛__ΐ層1係為氧化物層,具有高於i·1 2的折射率;而在本實施例中, 主二曰1的材5例如是五氧化二鈮(Nb2〇5)。當然,第一層1的材質亦可 二、' 、一 口錫(I丁〇)氧化錄錫(ΑΤΟ)、銳氧化物(niobium oxide )、 \化物(titanium oxide)、鈕氧化物(tantalum 〇xide)及其混合之氧化物 C mixtures of these oxide )的族群。 第二層2係為一氧化物層,具有介於1·3〜1.5的折射率;而在本實施 例第二層2材質例如是二氧化石夕(si〇2)。此外,第二層2的材質亦可 1 ^fi(porous)- fluorinated^(organically modified) 2 的低折射率材質。 第二層3係為一透明傳導層(transparent c〇nductive 一沉),具有介於 U〜2.5的折射率,且具有介於2〇〇〜1〇〇〇〇歐姆/單位面積⑽^叫·) 的阻抗值·,而在本實施例中,帛三層3是連接到觸控面板邊緣的電極圖案 (e—pattern)上;另外,第三層3的材質例如是氧化鋼錫(ιτ〇)添 加五氧化KNb2Q5)。當然,第三層3之材質亦可為氧化録錫(ΑΤ〇)、 氧化銦錫(ΙΤ0)在此係指純nx^purenx))、二氧化錫(Sn〇2)、二氧化鋅 (Ζη02)、二氧化二銦(in2〇3)及其組合。然而,上述的添加物(五氧化二 銳(Nb2〇2))可視需求決定添加與否,而添加的含量約佔整體之ο ι〜2⑽。 而第四層4係為一保護層,具有介於口〜]^的折射率(refractive index),該層之厚度至少為〇·ι微米(μιη),且該層之硬度通過9H的 ASTM-D3363國際檢驗標準,並可通過至少1〇〇〇次美國陸軍軍規抗刮傷標 準(militarystandardMIL-C-675C)的抗刮測試;而在本實施例中,第四層 4的材質可為二氧化石夕(Si〇2)或有機改造石夕土( organically modified silica )。 1288699 由上述可知,本發觸控屏之基板6正面7塗佈―種四層結構的抗 反射塗佈層,該些麟之折射畅鄰近基板6的―側算起,絲序設計為 南、低、焉、低(表示為Η、L、Η、L),如此可使本發明之觸控屏的透光 率:達八隱酬3 92%以上。另外,由於將該些膜層的最外層定義為_ 保護層,亚透過此保護層的設計,而可強化其表面的抗磨性。^ 3 4 ^ ^-#J and the hemp - € 2, the second layer 3 and the fourth layer 4 are arranged on the front side 7 of the substrate 6, and the layer configuration (4) can utilize the technique of vacuum ore film (va_(10)ting). Such as the money 4 two ennf, Luo forging (eVaP〇rati〇n), chemical vapor deposition (Chemical vapor deP〇si_ ^ or other coating technology ^therwetc〇atingtechn〇i〇gies) formed. The whistle layer 1 is an oxide layer having a refractive index higher than i·12; and in the present embodiment, the material 5 of the main bismuth 1 is, for example, tantalum pentoxide (Nb2〇5). Of course, the material of the first layer 1 can also be two, ', one tin (I butyl) oxide tin (ΑΤΟ), sharp oxide (niobium oxide), \ chemical (titanium oxide), button oxide (tantalum 〇xide And the group of its mixed oxides C mixtures of these oxides. The second layer 2 is an oxide layer having a refractive index of from 1. 3 to 1.5, and in the second layer 2 of the present embodiment, for example, is a silica dioxide (si〇2). In addition, the material of the second layer 2 can also be a low refractive index material of 1 ^fi(porous)-fluorinated^(organically modified) 2 . The second layer 3 is a transparent conductive layer (transparent c〇nductive sink) having a refractive index of U~2.5 and having a range of 2〇〇~1〇〇〇〇 ohms/unit area (10)^ In the present embodiment, the third layer 3 is connected to the electrode pattern (e-pattern) at the edge of the touch panel; in addition, the material of the third layer 3 is, for example, oxidized steel tin (ιτ〇) ) Add pentoxide KNb2Q5). Of course, the material of the third layer 3 may also be oxidized tin (ΑΤ〇), indium tin oxide (ΙΤ0) here refers to pure nx^purenx), tin dioxide (Sn〇2), zinc dioxide (Ζη02) ), indium dioxide (in2〇3) and combinations thereof. However, the above-mentioned additive (Nb2〇2) can be added or not depending on the demand, and the added content is about ο 〜 2 (10). The fourth layer 4 is a protective layer having a refractive index of at least 口·ι μιη (μιη), and the hardness of the layer passes the ASTM of 9H. D3363 international inspection standard, and can pass at least 1 US Army military standard anti-scratch standard (militarystandardMIL-C-675C) scratch resistance test; in this embodiment, the fourth layer 4 material can be dioxide Shi Xi (Si〇2) or organically modified silica. 1288699 It can be seen from the above that the front surface 7 of the substrate 6 of the touch screen is coated with a four-layer anti-reflective coating layer, and the refracting of the linings is adjacent to the side of the substrate 6, and the silk sequence is designed to be south. Low, 焉, low (indicated as Η, L, Η, L), so that the light transmittance of the touch screen of the present invention: up to 83% or more. In addition, since the outermost layer of the film layers is defined as a _ protective layer, the design of the protective layer is sub-transparent to enhance the abrasion resistance of the surface.

,著’請糊「第2]〜2-5圖」’麵本發明之第二較佳實施例,係有 五種祕,如第2-1圖所示’在上述四層的抗反射結構下,更可透過將基板 6之雙面以鑛或酸簡方式,使基板6之正、反面7、12的表雖經化, ^丄炫光(anti-glare)的效果。當然’並不偏限於±述雙面浸酸或酸姓的方 =仰第2-2圖,僅於接近使用者的基板6之正面7形成—粗_表面。 ★ 士第23®亦可在上述四層抗反射結構的最外層(即第四層4)添 加複數個微粒子(partide) 13,使該微粒子13的折射率變為Μ〜Μ,而 j炫光的效果,而上述微粒子13的直徑係介於⑼卜4微米—)之間。 ,亦可在上述四層的抗反射結構下’如第2_4圖,在抗反射結構的第四 曰]、上另噴塗-第五層(抗炫光層% ’該第五層(抗炫光層》採用喷塗的方式 =成,且平均粗糖度(roughness)介於〇 〇1〜〇 4微米(叫)之間,可使其 :面粗糖化’而具有抗炫光的效果。#然,上述所提及之第五層(抗炫光 ^ ’並不限定在四層的抗反射結構都製作絲後才形成,亦可如&圖, 在製作第三層3後’即噴塗該第五層(抗炫光層)5,最後再形成第四層4。 接著,請參閱「第3圖」,係為本發明之第三雛實施例的其中一種能 該實施例與上述實闕不同之處在於:增設—第二 ^ -第八層8、一第九層9及一第十層1〇,且由鄰近於基板6布= 又將第八層8、第九層9及第十層1〇配置於基板6之反面12上,而该些 测麟,着肩、嫩概蝴他= 第八層8的折射率係等同於第―層1;第九層的折射.率係等同於第二声 的阻弟Λ層10、的折射率係等同於第三層3,且具有10〜1〇5歐姆/單位面^ ,^並連接於面板邊緣的導體(conductor)上。在本實施例中' 十層10可為—氧化銦錫(IT0)層,且具有励〜歐姆/單位面積 8 1288699 (ohm/square )的阻抗值。 由上述可知,本發明於觸控屏之基板6的反面12塗佈一種三層結構的 抗反射塗佈層,該些膜層之折射率由鄰近基板6的一側算起,係依序設計 為高、低、高(表示為H、L、H),以使本發明之觸控屏可進一步減少反射 並增加透光率,而第十層1G的設計更可具有防電磁波干擾(emi)的功能。 「而在上述雙層IT0加—保護層的結構下,其透光率及反射率的表現可 閱「第4圖及第5圖」,波長在431〜692nm的區段,其透光率平均皆可增 至92%以上;波長在44〇〜7〇〇nm的區段,其反射率皆低於1⑽。9 然後,請參閱「第6圖」,係為本發明之第三較佳實施例的另一實施態 樣’相較於「第3圖」其差異在於在抗反射結構的第四層4上同樣可噴塗 了第五層(抗炫光層)5。當然,第五層(抗炫光層)5亦可如前述—般,配置ς 第三層3及第四層4之間(圖未示出、 …而在上述雙層ΙΤΟ加一保護層及一第五層(抗炫光層)5的結構下,其透 光率及反射率的表現可參閱「第7圖及第8圖」,特別可將透光率在9〇%、以 上及反射率在10%以下之區段調整為較為平滑的曲線。 〜接著i請參閱「第9圖」,係為本發明之第四較佳實施例,該實施例與 第二較佳實施例不同處在於,第二抗反射塗佈層結構B更可包括有第十一 層U,其折射率等同於第四層4,且此第十一層1H系為一配置於第十層ι〇 上的保護層。 由上述可知,本發明之觸控屏中的第二抗反射塗佈層結構B更可增為 四層結構,其折射率相對於第一抗反射塗佈層結構(hlhl)a恰為鏡射 (mnror)配置的設計,而可使整體的透光率在可見光的波長範圍内之 可更為穩定。 本發明所能達到之功效更可進一步從下文及對應之圖式獲得證明。首 先,明透光率的比較,以單純的玻璃基板而言,波長在调〜彻職的可見 光範圍間,其整體的透光率是介於8〇〜9〇%之間(如第1〇圖所示);玻璃基 板塗佈雙層ITO後’波長在442〜625nm的區段,其透光率可增至9〇%以 士,但波長小於407nm、大於747nm的區段,透光率則下降至8〇%以下(如 第11圖所示);基於上述再更進一步塗佈本發明之保護層後,波長在431〜 9 1288699 692nm的區段,其透光率平均皆可增至92%以上(如第4圖所示);換言之, 本發明在塗佈了保護層後,除了增加抗磨的效果外,透光率在92%以上的 區段範圍,相較於僅塗佈雙層IT〇之玻璃基板的範圍更廣;接著,請參閱 第7圖’本發明再加上第五層(抗炫光層)5時,特別可將透光率在90%以上 之區段調整為較為平滑的曲線;換言之,可進一步穩定該觸控屏在顯示上 的表現。而上述圖形其透光率在可見光區段間的整體比較,可參閱第12圖。In the second preferred embodiment of the present invention, there are five kinds of secrets, as shown in Figure 2-1, 'the anti-reflection structure in the above four layers. Further, the surface of the front and back surfaces 7 and 12 of the substrate 6 can be made to have an anti-glare effect by arranging the both sides of the substrate 6 in an ore or acid form. Of course, it is not limited to ± the side of the double-sided pickling or acid surrogate = the image of the second side, which is formed on the front side 7 of the substrate 6 close to the user. ★士第23® can also add a plurality of partides 13 to the outermost layer of the above four-layer anti-reflective structure (ie, the fourth layer 4), so that the refractive index of the fine particles 13 becomes Μ~Μ, and j glare The effect of the above-mentioned fine particles 13 is between (9) and 4 micrometers -). It can also be under the above four-layer anti-reflective structure 'as shown in Figure 2_4, in the fourth 曰 of the anti-reflective structure], and sprayed on the fifth layer (anti-glare layer % 'the fifth layer (anti-glare) "Layer" adopts the method of spraying = forming, and the average roughness is between 〇〇1~〇4 microns (called), which can make it: surface coarse saccharification' and has anti-glare effect. The fifth layer mentioned above (anti-glare ^ ' is not limited to the formation of the four-layer anti-reflective structure after the wire is formed, and may also be sprayed as in the & figure after the third layer 3 is produced. The fifth layer (anti-glare layer) 5, and finally the fourth layer 4. Next, please refer to "Fig. 3", which is one of the third embodiment of the present invention. The difference lies in: the addition - the second ^ - the eighth layer 8, the ninth layer 9 and the tenth layer 1 〇, and is adjacent to the substrate 6 cloth = the eighth layer 8, the ninth layer 9 and the Ten layers of 1 〇 are arranged on the reverse side 12 of the substrate 6, and the linings, shoulders, and tenders = the refractive index of the eighth layer 8 is equivalent to the ―layer 1; the refractory rate of the ninth layer Equivalent to the second sound The resistive layer 10 has a refractive index equivalent to that of the third layer 3 and has a thickness of 10 to 1 〇 5 ohms per unit surface and is connected to a conductor of the edge of the panel. In this embodiment The ten layers 10 may be an indium tin oxide (ITO) layer and have an impedance value of excitation ohms/unit area 8 1288699 (ohm/square). As can be seen from the above, the present invention is applied to the reverse side 12 of the substrate 6 of the touch screen. A three-layer anti-reflective coating layer having a refractive index which is calculated from the side adjacent to the substrate 6 and is designed to be high, low, and high (indicated as H, L, and H). The touch screen of the present invention can further reduce reflection and increase light transmittance, and the design of the tenth layer 1G can further have the function of preventing electromagnetic interference (emi). "And under the structure of the above double-layer IT0 plus-protection layer For the performance of light transmittance and reflectivity, please refer to "Fig. 4 and Fig. 5". The transmittance of the segment with a wavelength of 431 to 692 nm can be increased to 92% or more on average; the wavelength is 44〇~7. The reflectance of the segment of 〇〇nm is less than 1 (10). 9 Then, please refer to "FIG. 6", which is another embodiment of the third preferred embodiment of the present invention. The difference between the embodiment and the "Fig. 3" is that the fifth layer (anti-glare layer) 5 can also be sprayed on the fourth layer 4 of the anti-reflection structure. Of course, the fifth layer (anti-glare layer) ) 5 can also be disposed between the third layer 3 and the fourth layer 4 as shown above (not shown, ... and a protective layer and a fifth layer (anti-glare layer) in the double layer) Under the structure of 5, the performance of light transmittance and reflectivity can be referred to in "Fig. 7 and Fig. 8". In particular, the transmittance of 9〇% or more and the reflectance of 10% or less can be adjusted to A smoother curve. The following is a fourth preferred embodiment of the present invention, which is different from the second preferred embodiment in that the second anti-reflective coating layer structure B may further include a tenth layer U having a refractive index equivalent to that of the fourth layer 4, and the eleventh layer 1H is a protective layer disposed on the tenth layer. It can be seen from the above that the second anti-reflective coating layer structure B in the touch screen of the present invention can be further increased into a four-layer structure, and its refractive index is exactly mirrored with respect to the first anti-reflective coating layer structure (hlhl)a. The design of the (mnror) configuration allows the overall transmittance to be more stable over the wavelength range of visible light. The achievable effects of the present invention can be further demonstrated from the following and corresponding drawings. First of all, the comparison of the light transmittance, in the case of a simple glass substrate, the wavelength of the light in the range of the visible light to the full range, the overall light transmittance is between 8 〇 ~ 9 〇% (such as the first 〇 As shown in the figure); after the double-layer ITO is coated on the glass substrate, the transmittance of the section with a wavelength of 442 to 625 nm can be increased to 9〇%, but the wavelength is less than 407 nm, and the transmittance is greater than 747 nm. Then, it is reduced to 8〇% or less (as shown in FIG. 11); after further coating the protective layer of the present invention based on the above, the transmittance of the segment having a wavelength of 431 to 9 1288699 692 nm can be increased to an average of 92% or more (as shown in Fig. 4); in other words, after coating the protective layer, the present invention has a light transmittance of 92% or more in the range of 92% or more as compared with the coating only after the anti-wear effect is increased. The range of the double-layer IT glass substrate is wider; next, please refer to FIG. 7 'When the fifth layer (anti-glare layer) 5 is added to the invention, the light transmittance is particularly higher than 90%. Adjusted to a smoother curve; in other words, the performance of the touch screen on the display can be further stabilized. For the overall comparison of the transmittance of the above figures between the visible light sections, see Fig. 12.

接著,請參閱第5、13〜15圖,該些圖式的Υ軸另以反射率來表示, 單純採用玻璃基板,且波長在可見光範圍間,其整體的反射率皆在1〇%以 下(如第13圖所示);在玻璃基板塗佈雙層ΙΤ〇後,波長在48〇〜58〇nm的 區丰又’其反射率下降至5%以下,但波長小於440nm、大於660nm的區段, 反射率則上升10%以下(如第14圖所示);在更進一步塗佈本發明之保護層 後,反射率低於10%以下的區段相較於單純塗佈雙層][T〇之玻璃基板,其 可增至波長440〜700nm的範圍(如第5圖所示);本發明再加上第五層(抗炫 光層)5時,特別可將反射率在10%以下之區段調整為較為平滑的曲線,進 而提高觸控屏在顯示上的表現(如第8圖所示)。而上述圖形其反射率在可見 光區段的整體比較,可參閱第15圖。 此外’請參閱下表一及「第16圖」,係表示根據ASTM-D1003國際標 準以Haze-GardPlus霧度計(該霧度計係為tft-LCD穿透性測量如全透過 率、穿透性霧度、透視性清晰度的標準儀器)所量測出整體穿透率,由結 果可看出本發明在多了 一層保護層或第五層(抗炫光層)5的架構下相較於單 玻璃基板(素玻 璃)2.8m/m 雙層ITO 2.8m/m 雙層ITO +單層 保護層2.8m/m 雙層ITO +單層 保護層+第五層 (抗炫光層) 2.8m/m T 92.2 93 93.7 93.2 表一 1288699 雖然本發明已以較佳實施例揭露如上,秋 何熟習此技藝者,仍能以前述本發 ;限疋本㈣’任 面7或是反面】2,依翁述形細例絲礎,在基板6的正 ^層=抗反射層,仍應涵蓋於本 當視後附之申請專利範圍所界定者為準。 月之保4祀圍 1288699 f圖式簡單說明】 ^圖〜,本翻高透光率觸控屏之第—較佳實施例的剖視圖。 第3圖,係為本發明高透光率觸控屏之第二較佳實施例的剖視圖。 第6圖,係為本^日^透f率觸控屏之第三較佳實施例之―態樣的剖視圖。 圖。、,、,、^透光率馳狀第三健實酬之另-態樣的剖視 ,9圖,料本發明高透光率觸控屏之第四較佳實施例的剖視圖 第 4、7、1〇 間的關係圖 12圖,係為本發明與習知技術之透光率與在可見光波長區段 第5、8、13〜15圖, 間的關係圖。 係為本發_習知技術之反群與在可見光波長區段 •D1003國際標準以Haze-Gard 第16圖,係為本發明與習知技術根據astm Plus霧度計所細丨整體冑透率的關係圖。 【主要元件符號說明】 A · · · · ••第一抗反射塗佈層結構 B · ·-. 第一抗反射塗佈層結構 1 · · · · ••第一層 2 · ·-. ••苐二層 3 · ·. ••第三層 4 · ·-. ••第四層 5 ·· ·. ••第五層(抗炫光層) 6 · ·-. ••基板 7 · ·.. ••正面 8 · ·-. ••第八層 9···· ••第九層 10 · · · · ••第十層 11 · ·.. ••第十一層 12 · ·.. ••反面 13 · · · · ••微粒子 12Next, please refer to the figures 5 and 13 to 15. The axes of the figures are also expressed by the reflectivity. The glass substrate is simply used, and the wavelength of the visible light range is less than 1%. As shown in Fig. 13), after the double-layered tantalum is coated on the glass substrate, the region with a wavelength of 48 〇 to 58 〇 nm has a region whose reflectance falls below 5% but has a wavelength of less than 440 nm and greater than 660 nm. In the segment, the reflectance is increased by 10% or less (as shown in Fig. 14); after further coating the protective layer of the present invention, the segment having a reflectance of less than 10% is compared with the simple coating of the double layer][ a glass substrate of T〇, which can be increased to a wavelength range of 440 to 700 nm (as shown in FIG. 5); when the fifth layer (anti-glare layer) 5 is added to the present invention, the reflectance is particularly 10%. The following sections are adjusted to a smoother curve, which in turn improves the performance of the touch screen on the display (as shown in Figure 8). For the overall comparison of the reflectivity of the above figures in the visible light section, see Figure 15. In addition, please refer to Table 1 below and Figure 16 for the Haze-GardPlus haze meter according to ASTM-D1003 international standard (the haze meter is tft-LCD penetration measurement such as full transmittance, penetration). The overall penetration rate is measured by the standard instrument of the haze and the perspective clarity. It can be seen from the results that the present invention is compared with the structure of one more protective layer or the fifth layer (anti-glare layer) 5 Single glass substrate (primary glass) 2.8m/m Double layer ITO 2.8m/m Double layer ITO + single layer protective layer 2.8m/m Double layer ITO + single layer protective layer + fifth layer (anti-glare layer) 2.8 m/m T 92.2 93 93.7 93.2 Table 1 1288699 Although the present invention has been disclosed in the preferred embodiment as above, the person skilled in the art can still use the above-mentioned present invention; the limit is (4) 'face 7 or reverse side 2 In the case of the fine-grained wire foundation, the positive layer of the substrate 6 = the anti-reflective layer shall be subject to the definition of the patent application scope of the present invention. Monthly Protection 4祀 1288699 f Simple description of the figure] ^ Figure, the cross-sectional view of the preferred embodiment of the present invention. Figure 3 is a cross-sectional view showing a second preferred embodiment of the high transmittance touch screen of the present invention. Fig. 6 is a cross-sectional view showing the state of the third preferred embodiment of the touch panel. Figure. The cross-sectional view of the fourth preferred embodiment of the high transmittance touch screen of the present invention is the fourth embodiment of the present invention. Fig. 12 is a diagram showing the relationship between the light transmittance of the present invention and the prior art and the fifth, eighth, and 13th to 15th views in the visible light wavelength section. This is the inverse of the conventional technology and in the visible wavelength range • D1003 international standard by Haze-Gard Figure 16, which is the overall penetration rate of the invention according to the invention and the conventional technology according to the astm Plus haze meter. Diagram of the relationship. [Description of main component symbols] A · · · ·•• First anti-reflective coating layer structure B · ·-. First anti-reflective coating layer structure 1 · · · · •• First layer 2 · ·-. • 苐 2nd layer 3 · ·· •• 3rd layer 4 · ·-. ••4th layer 5 ·· ··••5th layer (anti-glare layer) 6 · ·-. •• Substrate 7 · · .. ••Front 8 · ·-. •• The eighth layer 9···· •• The ninth layer 10 · · · · •• The tenth layer 11 · ·.. •• The eleventh floor 12 · ·. ••反面13 · · · · ••Microparticles 12

Claims (1)

1288699 十、申請專利範圍: 1·一種高透光率觸控屏,包括: 一基板,具有一正面及一相對於該正面之反面;以及 一第一抗反射塗佈層結構,包含一第一層、一第二層、一第三層及一 第四層’且由鄰近於該基板的-侧向外以該第_層、該第二層、該第三層 及該第四層的順序配置於該基板之該正面上,其中: 該第一層係為一氧化物層,具有高於15的折射率; 該第二層係為一氧化物層,具有介於13〜15的折射率; 該第二層係為一透明傳導層,具有介於18〜2·5的折射率,且具有介 於200〜10000歐姆/單位面積的阻抗值; 該第四層係為一保護層,具有介於u〜15的折射率,該第四層之厚 度至少為0.1微米(μηι),且該第四層之硬度通過911的ASTM_D3363國際 檢驗標準。 2·如申明專利範ms 1項所述之高透光率觸控屏,其巾該第―層的材質 為五氧化二銳(Nb2〇5)。 3·如申請專利範圍第1項所述之高透光率觸控屏,其中該第一層的材質 係選自於包括氧化銦錫(ιτο)、氧化銻錫(ΑΤΟ)、鈮氧化物(ni〇bium 〇xide)、 鈦氧化物(titanium oxide)、组氧化物(tantalum oxide)及其混合之氧化物 (mixtures of these oxide )的族群。 4·如申請專利範圍第1項所述之高透光率觸控屏,其中該第二層的材質 為二氧化矽(Si02)。 、 、5·如申請專利範圍第1項所述之高透光率觸控屏,其中該第二層的材質 為多孔性(poiOus )、添加氯素(fluorinated )或有機改造(organicauy m〇dified ) 的低折射率材質。 、6·如申請專利範圍第1項所述之高透光率觸控屏,其中該第三層的材質 為氧化銦錫(IT0)添加五氧化二鈮(Nb2〇5)之添^^物。 7·如申請專利範圍第1項所述之高透光率觸控屏,,其中該第三層的材質 可為選自於包括氧化銻錫(AT0)、氧化銦錫(IT〇)、,二氧化錫(Sn〇2)、 一氧化辞(Zn〇2)、三氧化二銦(In2〇3)之群組及其、合。 13 1288699 8·如申請專利範圍第1項所述之高透光率觸控屏,其中該第四層的材質 為一氧化石夕(Si02)或有機改造石夕土(organicaiiy腦出^ Snica)。 9·如申請專利範圍第1項所述之高透光率觸控屏,其中該第一抗反射塗 佈層結構更包含一第五層,該第五層係為配置於該第四層上之一抗炫光層 (anti-glare layer ) 〇 10·如申請專利範圍第9項所述之高透光率觸控屏,其中該第五層(抗炫 光層)具有一粗糙表面(rough surface),且平均粗糙度(r〇ughness)介於〇 〇1 〜0.4微米(pm)。 11·如申請專利範圍第丨項所述之高透光率觸控屏,其中該基板之該正 , 面及该反面或僅該正面為一粗糙化表面。 12·如申請專利範圍第丨項所述之高透光率觸控屏,其中該第四層更進 一步添加多數個微粒子(particle),使該微粒子具15〜2·5的折射率。 13.如申請專利範圍第12項所述之高透光率觸控屏,該些微粒子的直徑 介於0.01〜4微米(pm)之間。 々14·如申請專利範圍第丨項所述之高透光率觸控屏,更包括一第五層,該 第五層係為一配置於該第三層及該第四層之間的抗炫光層。 一 15·如申請專利範圍第14項所述之高透光率觸控屏,其中該第五層(抗炫 光曰)/、有粗糙:表面(r〇Ugh surface ),且平均粗彳造度(r〇Ughness )介於〇 〇1 _ 〜〇·4 微米(μιη)。 、、16·如申請專利範圍第1項所述之高透光率觸控屏,更包括一第二抗反 射塗佈層、、、。構,包括一第八層、一第九層及一第十層,且由鄰近於該基板 的-側向外_第八層、該第九層及該第十層的順序配置於該基板之該反 面上,其中: 該第八層的折射率等同於該第一層; 該第九層的折射率等同於該第二層; 該第十層的折射率等同於該第三層,且具有10〜105歐姆/單位面積 (ohm/square)的阻抗值。 & 17.如申凊專利範圍帛16項所述之高透光率觸控屏,其中該第十層為一 虱化銦錫(no)層,且具有·〜7〇〇歐姆/單位面積(〇hm/啊〇的阻 14 1288699 抗值。1288699 X. Patent application scope: 1. A high transmittance touch screen comprising: a substrate having a front surface and a reverse side opposite to the front surface; and a first anti-reflective coating layer structure including a first a layer, a second layer, a third layer, and a fourth layer' and in the order of the first layer, the second layer, the third layer, and the fourth layer adjacent to the side of the substrate Arranging on the front surface of the substrate, wherein: the first layer is an oxide layer having a refractive index higher than 15; the second layer is an oxide layer having a refractive index of 13 to 15 The second layer is a transparent conductive layer having a refractive index of 18 to 2.5, and having an impedance value of 200 to 10000 ohms/unit area; the fourth layer is a protective layer having The refractive index of u~15, the thickness of the fourth layer is at least 0.1 micron (μηι), and the hardness of the fourth layer passes the ASTM_D3363 international inspection standard of 911. 2. According to the high transmittance touch screen of claim 1, the material of the first layer is Nb2〇5. 3. The high transmittance touch screen of claim 1, wherein the material of the first layer is selected from the group consisting of indium tin oxide (ITO), antimony tin oxide (yttrium), antimony oxide ( Ni〇bium 〇xide), a group of titanium oxides, tantalum oxides, and mixtures of these oxides. 4. The high transmittance touch screen of claim 1, wherein the second layer is made of cerium oxide (SiO 2 ). 5. The high transmittance touch screen of claim 1, wherein the second layer is made of poiOus, fluorinated or organically modified (organicauy m〇dified) ) Low refractive index material. 6. The high transmittance touch screen of claim 1, wherein the third layer is made of indium tin oxide (IT0) and added with niobium pentoxide (Nb2〇5). . The high transmittance touch screen of claim 1, wherein the material of the third layer is selected from the group consisting of antimony tin oxide (AT0), indium tin oxide (IT〇), Groups of tin dioxide (Sn〇2), nitric oxide (Zn〇2), indium trioxide (In2〇3), and combinations thereof. 13 1288699 8. The high transmittance touch screen of claim 1, wherein the fourth layer is made of oxidized stone (Si02) or organically modified shizu (organicaiiy brain out) . The high transmittance touch screen of claim 1, wherein the first anti-reflective coating layer structure further comprises a fifth layer, wherein the fifth layer is disposed on the fourth layer An anti-glare layer 〇10. The high transmittance touch screen of claim 9, wherein the fifth layer (anti-glare layer) has a rough surface (rough) Surface), and the average roughness (r〇ughness) is between 〇〇1 and 0.4 microns (pm). 11. The high transmittance touch screen of claim 2, wherein the front side and the back side of the substrate or only the front side is a roughened surface. 12. The high transmittance touch screen of claim 2, wherein the fourth layer further adds a plurality of particles such that the particles have a refractive index of 15 to 2.5. 13. The high transmittance touch screen of claim 12, wherein the microparticles have a diameter of between 0.01 and 4 micrometers (pm). The high-transmittance touch screen of claim 1, further comprising a fifth layer, wherein the fifth layer is an anti-reflection disposed between the third layer and the fourth layer Glare layer. A high transmittance touch screen as described in claim 14 wherein the fifth layer (anti-glare)/, rough: surface (r〇Ugh surface), and average roughness The degree (r〇Ughness) is between 〇〇1 _~〇·4 microns (μιη). The high transmittance touch screen of claim 1, further comprising a second anti-reflective coating layer, . The structure includes an eighth layer, a ninth layer and a tenth layer, and is disposed on the substrate in an order adjacent to the side of the substrate, the eighth layer, the ninth layer and the tenth layer. The reverse surface, wherein: the eighth layer has a refractive index equivalent to the first layer; the ninth layer has a refractive index equivalent to the second layer; the tenth layer has a refractive index equivalent to the third layer, and has Impedance value of 10 to 105 ohms per unit area (ohm/square). & 17. The high transmittance touch screen of claim 16, wherein the tenth layer is an indium tin oxide (no) layer and has a ~7 ohm/unit area (〇hm/啊〇的阻14 1288699 Resistance value. 該第’,……,^〜且綠罘卞層上的保護層。 塗佈/ ’更包含一第五層, 19.如申請專利範圍第16項所述之高透光率觸控屏 該第五層係為配置於該第四層上之一抗炫光層。 2〇.如申請專概圍第19項所狀高透光麵控屏,其中該第抗 炫光層)具有-祕表面(_gh smfaee),且平均粗赌 曰 0.01 〜0.4 微米(μιη)。 、 21·如申請專利範圍第16項所述之高透光率觸控屏,更包含一第五 層’該第五層係為配置於該第三層及該第四層之間。 22.如申凊專利範圍第21項所述之面透光率觸控屏,其中該第五層(抗 炫光層)具有一粗糙表面(rough surface),且平均粗糙度(r〇ughness)介於 〇·〇1 〜0·4 微米(μηι)。 15The first, ..., ^~ and the protective layer on the green layer. The coating/' further comprises a fifth layer, 19. The high transmittance touch screen of claim 16 is the anti-glare layer disposed on the fourth layer. 2〇. If you apply for the high-transparency surface control panel of the 19th item, the first anti-glare layer has a secret surface (_gh smfaee), and the average rough gambling is 0.01 to 0.4 micron (μιη). 21. The high transmittance touch screen of claim 16, further comprising a fifth layer, wherein the fifth layer is disposed between the third layer and the fourth layer. 22. The surface transmittance touch screen of claim 21, wherein the fifth layer (anti-glare layer) has a rough surface and an average roughness (r〇ughness) Between 〇·〇1 ~0·4 microns (μηι). 15
TW95111348A 2006-03-31 2006-03-31 Touch panel with high transmittance TWI288699B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8466884B2 (en) 2009-04-17 2013-06-18 E Ink Holdings Inc. Touch electrophoretic display apparatus
TWI420373B (en) * 2008-07-24 2013-12-21 Henghao Technology Co Ltd The touch screen and the manufacturing method thereof
TWI498069B (en) * 2010-03-19 2015-08-21 Fih Hong Kong Ltd Housing for electronic device and method for making the same
TWI514421B (en) * 2008-12-31 2015-12-21 Ind Tech Res Inst Transparent conducting composite film with anti-reflection

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI420373B (en) * 2008-07-24 2013-12-21 Henghao Technology Co Ltd The touch screen and the manufacturing method thereof
TWI514421B (en) * 2008-12-31 2015-12-21 Ind Tech Res Inst Transparent conducting composite film with anti-reflection
US8466884B2 (en) 2009-04-17 2013-06-18 E Ink Holdings Inc. Touch electrophoretic display apparatus
TWI498069B (en) * 2010-03-19 2015-08-21 Fih Hong Kong Ltd Housing for electronic device and method for making the same

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