TW201719347A - Touch panel - Google Patents
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本發明係關於一種觸控面板，尤指一種具有較佳表面視覺效果的觸控面板。The present invention relates to a touch panel, and more particularly to a touch panel having a better surface visual effect.
由於觸控面板具有人機互動的特性，已被廣泛應用於智慧型手機(smart phone)、衛星導航系統（GPS navigator system）、平板電腦（tablet PC）、個人數位助理（PDA）以及筆記型電腦（laptop PC）等電子產品上。習知觸控面板的電極層已開發出以金屬作為觸控電極的主要材料，然而以金屬製作的觸控電極會造成光學可視性問題，使用者可從觸控面板表面看到觸控電極的圖案，並且，以金屬材料為主的觸控電極的光線穿透度也較低，因此業界仍須提出能改善光學可視性問題與提高光線穿透度之觸控電極設計。Due to the human-computer interaction characteristics of the touch panel, it has been widely used in smart phones, GPS navigator systems, tablet PCs, personal digital assistants (PDAs), and notebook computers. (laptop PC) and other electronic products. The electrode layer of the conventional touch panel has been developed with metal as the main material of the touch electrode. However, the touch electrode made of metal causes optical visibility problems, and the user can see the touch electrode from the surface of the touch panel. The pattern and the metal-based touch electrode have low light transmittance. Therefore, the industry still needs to propose a touch electrode design that can improve optical visibility and improve light penetration.
本發明的目的之一在於提供一種觸控面板，其利用一透明氧化物層設於電極結構之一側，以改善觸控面板的表面視覺效果。One of the objectives of the present invention is to provide a touch panel that is disposed on one side of an electrode structure with a transparent oxide layer to improve the surface visual effect of the touch panel.
根據本發明之實施例，本發明提供一種觸控面板，其包括一透明基板、一圖案化電極層以及一透明氧化物層。其中，圖案化電極層設於該透明基板之一表面上，且該圖案化電極層包括一金屬薄膜與設於該金屬薄膜一側的一透明導電薄膜，而該透明氧化物層至少全面覆蓋該透明基板之該表面的觸控區，且該透明氧化物層位於該金屬薄膜相反於該透明導電薄膜之一側。According to an embodiment of the invention, the invention provides a touch panel comprising a transparent substrate, a patterned electrode layer and a transparent oxide layer. The patterned electrode layer is disposed on a surface of the transparent substrate, and the patterned electrode layer comprises a metal film and a transparent conductive film disposed on a side of the metal film, and the transparent oxide layer at least covers the entire surface. a touch area of the surface of the transparent substrate, and the transparent oxide layer is located on a side of the metal film opposite to the transparent conductive film.
由於本發明觸控面板的圖案化電極層同時包括金屬薄膜與設於金屬薄膜一側之透明導電薄膜，且另包括設於金屬薄膜另一側之透明氧化物層，因此可以藉由透明導電薄膜與透明氧化物層同時提供光學匹配功能。此外，因為本發明的圖案化電極層僅具有兩層薄膜，因此在具有圖案化電極結構和不具有電極結構的兩區域之間的膜層高低段差較小，可以有效降低電極結構的可視性。Since the patterned electrode layer of the touch panel of the present invention includes a metal film and a transparent conductive film disposed on one side of the metal film, and further includes a transparent oxide layer disposed on the other side of the metal film, the transparent conductive film can be used. Provides optical matching with the transparent oxide layer. In addition, since the patterned electrode layer of the present invention has only two layers of thin films, the difference in height between the two layers having the patterned electrode structure and the non-electrode structure is small, and the visibility of the electrode structure can be effectively reduced.
為使熟習本發明所屬技術領域之一般技藝者能更進一步了解本發明，下文特列舉本發明之數個較佳實施例，並配合所附圖式，詳細說明本發明的構成內容。並且，為了方便說明，本發明之各圖式僅為示意以更容易了解本發明，其詳細的比例可依照設計的需求進行調整。The present invention will be described in detail with reference to the preferred embodiments of the invention, Moreover, for convenience of description, the various figures of the present invention are merely illustrative to make the present invention easier to understand, and the detailed ratios thereof can be adjusted according to the needs of the design.
請參考第1圖，第1圖為本發明觸控面板之第一實施例的局部剖面示意圖。如第1圖所示，本發明觸控面板100包括一透明基板102、一圖案化電極層104以及一透明氧化物層106。透明基板102舉例為玻璃基板、塑膠基板或其他具有高機械強度材質之基板，可用來作為觸控面板100或觸控顯示裝置之覆蓋板，但不以此為限。透明基板102具有一觸控區1021與一周邊區（圖未示），其中觸控區1021為使用者進行觸控操作之區域，周邊區設於觸控區1021之一側，例如可環繞觸控區1021設置，以用來配置周邊線路。圖案化電極層104設於透明基板102之一表面上，在第1圖中，圖案化電極層104係設置於透明基板102的下表面102a，而透明基板102的上表面102b即作為觸控面板100的觸控面。圖案化電極層104包括一層金屬薄膜1041與一層透明導電薄膜1042，其中透明導電薄膜1042設於金屬薄膜1041之一側。圖案化電極層104之整體厚度較佳小於或等於50奈米，例如為約30至約50奈米，但不以此為限。再者，圖案化電極層104具有複數個電極結構104a設於觸控區1021內，本實施例之每一電極結構104a都分別僅由金屬薄膜1041與透明導電薄膜1042所構成，圖案化電極層104之電極結構104a在透明基板102表面形成了不連續的圖案，且相鄰的電極結構104a之間分別具有至少一間隙108。舉例而言，金屬薄膜1041之材料可以為銀、銀合金、銅或銅合金，但不以此為限，也可以為其他合適的材料，且金屬薄膜1041可以為具有平坦表面的單層金屬層，也可包含金屬網格結構。透明導電薄膜1042之材料包括結晶型或非晶型之金屬氧化物透明導電材料，例如為氧化銦錫(ITO)、氧化銦鋅(IZO)、氧化鋁鋅(AZO)或是上述材料的組合，但不以此為限，也可以為其他合適的材料。在本實施例中，透明導電薄膜1042係用來作為金屬薄膜1041的光學匹配層，能改善金屬薄膜1041的光學視覺效果，且由於透明導電薄膜1042具有導電性，其能和金屬薄膜1041一起作為電極結構104a而提供訊號傳導之功能。Please refer to FIG. 1 , which is a partial cross-sectional view of a touch panel according to a first embodiment of the present invention. As shown in FIG. 1 , the touch panel 100 of the present invention includes a transparent substrate 102 , a patterned electrode layer 104 , and a transparent oxide layer 106 . The transparent substrate 102 is exemplified by a glass substrate, a plastic substrate, or other substrate having a high mechanical strength, and can be used as a cover plate of the touch panel 100 or the touch display device, but is not limited thereto. The transparent substrate 102 has a touch area 1021 and a peripheral area (not shown). The touch area 1021 is a touch operation area of the user, and the peripheral area is disposed on one side of the touch area 1021. The area 1021 is set to configure the peripheral lines. The patterned electrode layer 104 is disposed on one surface of the transparent substrate 102. In FIG. 1, the patterned electrode layer 104 is disposed on the lower surface 102a of the transparent substrate 102, and the upper surface 102b of the transparent substrate 102 serves as a touch panel. 100 touch surface. The patterned electrode layer 104 includes a metal film 1041 and a transparent conductive film 1042. The transparent conductive film 1042 is disposed on one side of the metal film 1041. The overall thickness of the patterned electrode layer 104 is preferably less than or equal to 50 nanometers, for example, from about 30 to about 50 nanometers, but not limited thereto. In addition, the patterned electrode layer 104 has a plurality of electrode structures 104a disposed in the touch area 1021. Each of the electrode structures 104a of the embodiment is composed of only the metal film 1041 and the transparent conductive film 1042, and the patterned electrode layer is formed. The electrode structure 104a of 104 forms a discontinuous pattern on the surface of the transparent substrate 102, and each of the adjacent electrode structures 104a has at least one gap 108 therebetween. For example, the material of the metal film 1041 may be silver, silver alloy, copper or copper alloy, but not limited thereto, and other suitable materials, and the metal film 1041 may be a single metal layer having a flat surface. It can also contain a metal grid structure. The material of the transparent conductive film 1042 includes a crystalline or amorphous metal oxide transparent conductive material, such as indium tin oxide (ITO), indium zinc oxide (IZO), aluminum zinc oxide (AZO), or a combination thereof. However, it is not limited to this, but it can also be other suitable materials. In the present embodiment, the transparent conductive film 1042 is used as an optical matching layer of the metal thin film 1041, which can improve the optical visual effect of the metal thin film 1041, and since the transparent conductive film 1042 has electrical conductivity, it can be used together with the metal thin film 1041. The electrode structure 104a provides a function of signal conduction.
透明氧化物層106係至少全面覆蓋透明基板102之下表面102a的觸控區1021，且透明氧化物層106位於金屬薄膜1041相反於透明導電薄膜1042之一側，亦即，金屬薄膜1041係位於透明導電薄膜1042與透明氧化物層106之間。在本實施例中，透明氧化物層106為一平坦之膜層，全面覆蓋透明基板102之下表面102a的觸控區1021，設於圖案化電極層104與透明基板102之間，並且觸控區1021內的整個透明氧化物層106直接與透明基板102將接觸。再者，本實施例之透明氧化物層106係直接設置在透明基板102之下表面102a而與透明基板102相接觸。根據本發明，透明氧化物層106之厚度舉例為小於或等於約50奈米，但不以此為限。此外，透明氧化物層106可為單層之高折射率材料薄膜、單層之低折射率材料薄膜、或多層之高折射率材料薄膜與低折射率材料薄膜之堆疊，亦即可以為多層不同材料之堆疊複合膜層。上述高折射率材料薄膜包括（但不限於）五氧化二鈮（Nb2 O5 ）、二氧化鈦（TiO2 ）、五氧化二鉭（Ta2 O5 ）或二氧化鋯（ZrO2 ），而上述低折射率材料薄膜包括（但不限於）二氧化矽（SiO2 ）或氟化鎂（MgF2 ）。較佳地，透明氧化物層106包括非導電材料，但不以此為限。再者，透明氧化物層106可作為電極結構104a的另一光學匹配層，進一步改善電極結構104a的可視性與觸控面板100的整體表面視效。The transparent oxide layer 106 is at least completely covering the touch area 1021 of the lower surface 102a of the transparent substrate 102, and the transparent oxide layer 106 is located on the side of the metal film 1041 opposite to the transparent conductive film 1042, that is, the metal film 1041 is located. The transparent conductive film 1042 is interposed between the transparent oxide layer 106. In this embodiment, the transparent oxide layer 106 is a flat film layer, and the touch region 1021 covering the lower surface 102a of the transparent substrate 102 is disposed between the patterned electrode layer 104 and the transparent substrate 102, and is touched. The entire transparent oxide layer 106 within the region 1021 will be in direct contact with the transparent substrate 102. Furthermore, the transparent oxide layer 106 of the present embodiment is directly disposed on the lower surface 102a of the transparent substrate 102 to be in contact with the transparent substrate 102. In accordance with the present invention, the thickness of the transparent oxide layer 106 is exemplified by less than or equal to about 50 nm, but is not limited thereto. In addition, the transparent oxide layer 106 may be a single layer of a high refractive index material film, a single layer of a low refractive index material film, or a stack of a plurality of high refractive index material films and a low refractive index material film, that is, may be different layers. A stacked composite film of material. The above high refractive index material film includes, but is not limited to, niobium pentoxide (Nb 2 O 5 ), titanium dioxide (TiO 2 ), tantalum pentoxide (Ta 2 O 5 ) or zirconium dioxide (ZrO 2 ), and the above Low refractive index material films include, but are not limited to, cerium oxide (SiO 2 ) or magnesium fluoride (MgF 2 ). Preferably, the transparent oxide layer 106 comprises a non-conductive material, but is not limited thereto. Moreover, the transparent oxide layer 106 can serve as another optical matching layer of the electrode structure 104a, further improving the visibility of the electrode structure 104a and the overall surface visual effect of the touch panel 100.
相對的，當習知觸控面板為了改善以金屬材料為主材料之觸控電極的視覺效果時，會在金屬材料之上、下兩側分別各設置一至數層的圖案化導電膜層，使得圖案化的電極結構為三層複合結構、甚至更多層之複合結構，造成具有電極結構之區域與不具有電極結構之區域的入射可見光或反射可見光比例不同，產生顏色對比，亦即有明顯的色差或色偏問題，使得電極圖案可視。再者，因為三層或更多層的電極結構具有較高的厚度，例如有100奈米以上之厚度，因此習知觸控面板上具有電極結構之區域以及不具有電極結構之區域會有較大的高低段差，造成電極圖案陰影痕跡可視，特別是非正向入射之反射光與入射光會使電極圖案更加清晰明顯，且段差越大則電極圖案越明顯。In contrast, when the conventional touch panel is used to improve the visual effect of the touch electrode based on the metal material, one or several layers of the patterned conductive film layer are respectively disposed on the upper and lower sides of the metal material, so that The patterned electrode structure is a three-layer composite structure or even a composite structure of more layers, which causes the ratio of incident visible light or reflected visible light to a region having an electrode structure and a region having no electrode structure, resulting in a color contrast, that is, an obvious A color difference or color shift problem makes the electrode pattern visible. Furthermore, since the electrode structure of three or more layers has a relatively high thickness, for example, a thickness of 100 nm or more, a region having an electrode structure on a conventional touch panel and an area having no electrode structure may be more conventional. The large difference between the high and low sections causes the shadow traces of the electrode pattern to be visible. In particular, the reflected light and the incident light that are not positively incident will make the electrode pattern more clear and obvious, and the larger the step, the more obvious the electrode pattern.
請繼續參考本發明第一實施例之第1圖結構，第1圖中箭頭AT1、AT2表示由觸控面板100下側穿透至觸控面板100上側之穿透光線，其中穿透光線AT1穿過電極結構104a之間的間隙108，穿透光線AT2之行徑路線經過電極結構104a，而穿透光線AT1與穿透光線AT2在國際照明委員會（Commission Internationale d'Eclairage，CIE）三維色度座標CIELAB上的差值以DT (L*, a*, b*)表示。再者，箭頭AR1、AR2表示由觸控面板100之觸控面入射至觸控面板100而被反射回上側之反射光線，其中反射光線AR1入射至電極結構104a之間的間隙108區域，被透明氧化物層106反射，而反射光線AR2入射至電極結構104a區域而被圖案化電極層104反射，且反射光線AR1與AR2的CIELAB差值以DR (L*, a*, b*)表示。由上述可之知，DT (L*, a*, b*)與DR (L*, a*, b*)表示了電極結構104a區域與間隙108區域的入射光與反射光的色差或色偏，若DT (L*, a*, b*)與DR (L*, a*, b*)若越小，則表示電極結構104a的可視性越小。根據本實施例，可以藉由選擇適當的透明氧化物層106而使可見光範圍內的DT (L*, a*, b*)與DR (L*, a*, b*)達到較小值，使其不大於以及更可以小於習知具有三層電極結構或更多層電極結構的觸控面板之DT (L*, a*, b*)與DR (L*, a*, b*)，因此能有效改善電極結構104a區域與間隙108區域的色偏問題，降低電極結構104a的可視性。此外，經由適當的選擇透明氧化物層106並搭配圖案化電極層104的材料，也可以使本發明觸控面板100具有較佳的穿透度與色度，例如，將單一層透明基板102之光學色度視為絕對中性，則本發明觸控面板100的圖案化電極層104的光學色度可以達到(|a*|, |b*|)＜(1.0, 1.0)，有較佳的穿透度與色度表現。Please refer to the structure of the first embodiment of the first embodiment of the present invention. The arrows AT1 and AT2 in FIG. 1 indicate the penetrating light that penetrates from the lower side of the touch panel 100 to the upper side of the touch panel 100, and the penetrating light AT1 is worn. The gap 108 between the electrode structures 104a passes through the electrode structure 104a, and penetrates the light AT1 and penetrates the light AT2 at the Commission Internationale d'Eclairage (CIE) three-dimensional chromaticity coordinate CIELAB. The difference is represented by D T (L*, a*, b*). Furthermore, the arrows AR1 and AR2 represent the reflected light reflected from the touch surface of the touch panel 100 to the touch panel 100 and reflected back to the upper side, wherein the reflected light AR1 is incident on the gap 108 region between the electrode structures 104a, and is transparent. The oxide layer 106 is reflected, and the reflected ray AR2 is incident on the region of the electrode structure 104a to be reflected by the patterned electrode layer 104, and the CIELAB difference of the reflected ray AR1 and AR2 is represented by D R (L*, a*, b*). As can be seen from the above, D T (L*, a*, b*) and D R (L*, a*, b*) represent the chromatic aberration of incident light and reflected light in the region of the electrode structure 104a and the region of the gap 108 or The color shift, if D T (L*, a*, b*) and D R (L*, a*, b*) are smaller, indicates that the visibility of the electrode structure 104a is smaller. According to this embodiment, D T (L*, a*, b*) and D R (L*, a*, b*) in the visible light range can be made smaller by selecting an appropriate transparent oxide layer 106. The value is such that it is not larger than and more than D T (L*, a*, b*) and D R (L*, a*, of a touch panel having a conventional three-layer electrode structure or more electrode structures. b*), therefore, the color shift problem of the region of the electrode structure 104a and the region of the gap 108 can be effectively improved, and the visibility of the electrode structure 104a can be reduced. In addition, the touch panel 100 of the present invention can also have better transmittance and chromaticity by appropriately selecting the transparent oxide layer 106 and matching the material of the patterned electrode layer 104, for example, a single layer transparent substrate 102 The optical chromaticity of the patterned electrode layer 104 of the touch panel 100 of the present invention can reach (|a*|, |b*|)<(1.0, 1.0), which is preferable. Penetration and chromaticity performance.
請參考第3圖，第3圖為本發明觸控面板與習知觸控面板的可見光對穿透度的曲線圖，其中本發明觸控面板100（包含基板、透明氧化物層、圖案化電極層）的光線穿透度以實線曲線表示，而習知具有三層電極結構之觸控面板以虛線曲線表示。如圖所示，相較於習知技術，本發明觸控面板100的整體光學穿透度可以提升約2％至約3％。再者，由於本發明之電極結構104a只包含金屬層1041與透明導電層1042，因此電極結構104a區域與間隙區域108區域的高低段差小於上述習知觸控面板之三層或更多層之電極結構設計，能有效改善來自非正向之入射光與反射光所造成的陰影可視問題。Please refer to FIG. 3 , which is a graph of visible light transmittance of the touch panel of the present invention and a conventional touch panel, wherein the touch panel 100 of the present invention (including a substrate, a transparent oxide layer, and a patterned electrode) The light transmittance of the layer is represented by a solid line curve, and a conventional touch panel having a three-layer electrode structure is indicated by a broken line curve. As shown, the overall optical transparency of the touch panel 100 of the present invention can be increased by about 2% to about 3% compared to conventional techniques. Furthermore, since the electrode structure 104a of the present invention includes only the metal layer 1041 and the transparent conductive layer 1042, the height difference between the region of the electrode structure 104a and the region of the gap region 108 is smaller than that of the three or more layers of the conventional touch panel. The structural design can effectively improve the visual problem of shadows caused by non-positive incident light and reflected light.
下文將針對本發明的不同實施樣態進行說明，且為簡化說明，以下說明主要針對各實施例不同之處進行詳述，而不再對相同之處作重覆贅述。此外，本發明之各實施例中相同之元件係以相同之標號進行標示，以利於各實施例間互相對照。The different embodiments of the present invention are described below, and the following description is mainly for the sake of simplification of the description of the embodiments, and the details are not repeated. In addition, the same elements in the embodiments of the present invention are denoted by the same reference numerals to facilitate the comparison between the embodiments.
請參考第2圖，第2圖為本發明觸控面板之第二實施例的局部剖面示意圖。本實施例與前一實施例的差異處在於透明氧化物層106’係覆蓋圖案化電極層104的表面，如第2圖所示，透明氧化物層106’階梯覆蓋圖案化電極層104，使得至少一部份的透明氧化物層106’設於間隙108內且直接設置於透明基板102之下表面102a上而與透明基板102相接觸，被透明氧化物層106’覆蓋的圖案化電極層104則位於部分透明氧化物層106’與透明基板102之間。在本實施例中，穿透光線AT1與AT2的色偏DT (L*, a*, b*)與反射光線AR1與AR2的色偏DR (L*, a*, b*)仍然不大於習知三層電極結構的設計，甚至可藉由選擇適當的透明氧化物層106’的材料及調整厚度，可以使穿透光線AT1與AT2與反射光線AR1與AR2之色偏小於習知技術，因此本實施例不只可以改善電極結構104a區域與間隙108區域的色偏問題，也能減小兩區域之間的膜層高低段差，進而改善非正向光線所造成的陰影問題。Please refer to FIG. 2, which is a partial cross-sectional view showing a second embodiment of the touch panel of the present invention. The difference between this embodiment and the previous embodiment is that the transparent oxide layer 106' covers the surface of the patterned electrode layer 104. As shown in FIG. 2, the transparent oxide layer 106' step covers the patterned electrode layer 104, so that At least a portion of the transparent oxide layer 106 ′ is disposed in the gap 108 and directly disposed on the lower surface 102 a of the transparent substrate 102 to be in contact with the transparent substrate 102 , and the patterned electrode layer 104 covered by the transparent oxide layer 106 ′ It is then located between the partially transparent oxide layer 106' and the transparent substrate 102. In the present embodiment, the transmitted light color shift of AT1 and AT2 D T (L *, a * , b *) and color shift of reflected light D R AR1 and AR2 is (L *, a *, b *) is still not Compared with the design of the conventional three-layer electrode structure, even by selecting the appropriate transparent oxide layer 106' material and adjusting the thickness, the color of the transmitted rays AT1 and AT2 and the reflected rays AR1 and AR2 can be made smaller than the conventional ones. Therefore, in this embodiment, not only the color shift problem of the region of the electrode structure 104a and the region of the gap 108 can be improved, but also the height difference between the two regions can be reduced, thereby improving the shadow problem caused by the non-forward light.
請參考第4圖，第4圖為本發明觸控面板與習知觸控面板的反射光平均色偏值之圖表，其中縱座標與橫座標分別表示D b*與Da*。比較本實施例與習知技術之平均色偏值，以反射光為例，若定義平均色偏值，那麼前述習知觸控面板（包含三層電極結構）之平均色偏值DE(a,b) ＞ 10，在圖中以圓點標記標示，而本實施例可經由適當的調整透明氧化物層106’的膜厚，使平均色偏值DE(a,b) ＜1，在圖中以菱形標記表示，大幅改善了色偏問題。此外，本實施例之其他優點相同於本發明之第一實施例，不再贅述。Please refer to FIG. 4 , which is a graph of the average color shift value of the reflected light of the touch panel of the present invention and the conventional touch panel, wherein the ordinate and the abscissa indicate D b* and Da*, respectively. Comparing the average color shift values of the present embodiment and the prior art, taking reflected light as an example, if the average color shift value is defined The average color shift value DE (a, b) > 10 of the conventional touch panel (including the three-layer electrode structure) is indicated by a dot mark in the figure, and the embodiment can adjust the transparent oxide through appropriate adjustment. The film thickness of the layer 106' is such that the average color shift value DE (a, b) < 1, which is indicated by a diamond mark in the figure, greatly improves the color shift problem. In addition, other advantages of the embodiment are the same as those of the first embodiment of the present invention, and are not described again.
綜上所述，本發明之觸控面板在圖案化電極層的一側設置全面覆蓋觸控區的透明氧化物層，能夠在不影響電極結構之導電薄膜導電特性之情況下，提供光學匹配之功能，以同時改善色偏與透光度，更能避免習知技術中因電極結構膜層較厚而造成高低段差所產生的圖案陰影問題，因此能有效改善觸控面板表面的視覺效果。 以上所述僅為本發明之較佳實施例，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。In summary, the touch panel of the present invention is provided with a transparent oxide layer covering the touch area on one side of the patterned electrode layer, which can provide optical matching without affecting the conductive properties of the conductive film of the electrode structure. The function can improve the color shift and the transmittance at the same time, and can avoid the pattern shadow problem caused by the high and low step difference caused by the thick film structure of the electrode structure in the prior art, thereby effectively improving the visual effect of the surface of the touch panel. 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.
100‧‧‧觸控面板
102‧‧‧透明基板
1021‧‧‧觸控區
102a‧‧‧下表面
102b‧‧‧上表面
104‧‧‧圖案化電極層
1041‧‧‧金屬薄膜
1042‧‧‧透明導電薄膜
104a‧‧‧電極結構
106、106’‧‧‧透明氧化物層
108‧‧‧間隙
AT1、AT2‧‧‧穿透光線
AR1、AR2‧‧‧反射光線100‧‧‧ touch panel
102‧‧‧Transparent substrate
1021‧‧‧ touch area
102a‧‧‧lower surface
102b‧‧‧ upper surface
104‧‧‧ patterned electrode layer
1041‧‧‧Metal film
1042‧‧‧Transparent conductive film
104a‧‧‧Electrode structure
106, 106'‧‧‧ Transparent oxide layer
108‧‧‧ gap
AT1, AT2‧‧‧ penetrating light
AR1, AR2‧‧‧ reflected light
第1圖為本發明觸控面板之第一實施例的局部剖面示意圖。 第2圖為本發明觸控面板之第二實施例的局部剖面示意圖。 第3圖為本發明觸控面板與習知觸控面板的可見光對穿透度的曲線圖。 第4圖為本發明觸控面板與習知觸控面板的反射光平均色偏值圖表。1 is a partial cross-sectional view showing a first embodiment of a touch panel of the present invention. 2 is a partial cross-sectional view showing a second embodiment of the touch panel of the present invention. FIG. 3 is a graph showing the visible light transmittance of the touch panel of the present invention and the conventional touch panel. FIG. 4 is a graph showing the average color shift value of the reflected light of the touch panel of the present invention and the conventional touch panel.
1021‧‧‧觸控區 1021‧‧‧ touch area
102a‧‧‧下表面 102a‧‧‧lower surface
102b‧‧‧上表面 102b‧‧‧ upper surface
104‧‧‧圖案化電極層 104‧‧‧ patterned electrode layer
1041‧‧‧金屬薄膜 1041‧‧‧Metal film
1042‧‧‧透明導電薄膜 1042‧‧‧Transparent conductive film
104a‧‧‧電極結構 104a‧‧‧Electrode structure
106‧‧‧透明氧化物層 106‧‧‧Transparent oxide layer
108‧‧‧間隙 108‧‧‧ gap
AT1、AT2‧‧‧穿透光線 AT1, AT2‧‧‧ penetrating light
AR1、AR2‧‧‧反射光線 AR1, AR2‧‧‧ reflected light
Claims (11)
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| TW104139081A TWI563434B (en) | 2015-11-25 | 2015-11-25 | Touch panel |
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