TW201702823A - Touch panel - Google Patents
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- TW201702823A TW201702823A TW104121995A TW104121995A TW201702823A TW 201702823 A TW201702823 A TW 201702823A TW 104121995 A TW104121995 A TW 104121995A TW 104121995 A TW104121995 A TW 104121995A TW 201702823 A TW201702823 A TW 201702823A
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Abstract
Description
本發明是關於一種觸控面板，特別是關於一種觸控面板之走線結構設計與佈局。 The present invention relates to a touch panel, and more particularly to a trace structure design and layout of a touch panel.
一般而言，觸控面板主要是由基板、含複數個感測電極及相應連接結構之感測層、多條金屬線路以及裝飾層所構成，其中金屬線路係電性連接於部分個感測電極，以進行資料或訊號的傳輸。裝飾層係覆蓋位於基板周邊的金屬線路而形成邊框區，以降低金屬線路對於人眼的外部可視性，並且透過裝飾層的顏色設計增加觸控面板的美感。 Generally, the touch panel is mainly composed of a substrate, a sensing layer including a plurality of sensing electrodes and corresponding connection structures, a plurality of metal lines, and a decorative layer, wherein the metal lines are electrically connected to the plurality of sensing electrodes. For the transmission of data or signals. The decorative layer covers the metal lines around the periphery of the substrate to form a frame area to reduce the external visibility of the metal line to the human eye, and the color of the decorative layer increases the aesthetics of the touch panel.
第一圖示意說明一種習知觸控面板10的上述主要結構。如圖所示，感測層120係形成於基板110上，其係由位於可視區12中的複數個感測電極及相應連接結構所構成。多條金屬線路130則佈設於觸控面板之邊框區14中，並與部分感測電極電性連接以傳輸資料或訊號 The first figure schematically illustrates the above-described main structure of a conventional touch panel 10. As shown, the sensing layer 120 is formed on the substrate 110, which is composed of a plurality of sensing electrodes and corresponding connection structures located in the visible region 12. A plurality of metal lines 130 are disposed in the frame area 14 of the touch panel, and are electrically connected to the portion of the sensing electrodes to transmit data or signals.
為能良好地將感測層之訊號傳遞至控制模組，金屬線路的佈設與電性在觸控面板的設計中至關重要。具體而言，在觸控面板中，IC輸出端打出的驅動訊號會藉由金屬線 路傳達到面板中的感測電極，並由金屬線路將耦合訊號回傳至IC的接收端。金屬線路的佈設與電性會影響在此過程中輸出與接收訊號的品質，因此現有大量心力係著重於在符合成本效益下尋求具有良好的電傳導特性的金屬材料作為觸控面板之金屬線路。 In order to transmit the signal of the sensing layer to the control module well, the layout and electrical properties of the metal circuit are crucial in the design of the touch panel. Specifically, in the touch panel, the driving signal from the output of the IC is driven by the metal wire. The path is communicated to the sensing electrodes in the panel, and the coupled signals are transmitted back to the receiving end of the IC by the metal lines. The layout and electrical properties of metal lines affect the quality of the output and receive signals during this process. Therefore, a large number of existing efforts focus on finding a metal material with good electrical conduction characteristics as a metal line of a touch panel in a cost-effective manner.
目前已知作為金屬線路之金屬材料必須滿足下列多種條件：具有良好的電傳導性、具有良好的材料穩定性、具有與底層有機材料之良好接著性、能適合量產及具可接受的成本價格。由於觸控面板設計中為了防止刮傷、水氣侵入造成電化學腐蝕或是髒污掉落於電極間造成短路問題，大多會覆蓋上一個保護層材料，並且此保護層材料通常具有較佳的黏著特性，以利於牢固覆蓋觸控面板可視區範圍內的透明電極以及金屬線路，達到保護目的。 Metal materials known as metal lines are currently known to meet a variety of conditions: good electrical conductivity, good material stability, good adhesion to the underlying organic materials, suitability for mass production, and acceptable cost. . In the touch panel design, in order to prevent scratches, water vapor intrusion, electrochemical corrosion or dirt falling between the electrodes, the short circuit problem is mostly covered by a protective layer material, and the protective layer material generally has better Adhesive properties to help cover the transparent electrodes and metal lines in the visible area of the touch panel for protection purposes.
第二A圖與第二B圖分別示意說明了前述結構的上視圖與截面圖。第二A圖所示係一習知觸控面板之邊框區14的一部分，其中為求表達清晰，係僅例示性繪示出形成於基板110上的一條金屬線路130的一部分，然發明所屬領域之技術人士應知，觸控面板於邊框區中係應包含多條金屬線路以分別連接於感測層中之感測電極(圖中未示)。第二B圖為沿第二A圖中線段CC’所示之截面圖，其中在金屬線路130上係覆蓋有一般具保護、絕緣功能之保護層200。 The second A and second B views respectively illustrate top and cross-sectional views of the foregoing structure. 2A is a portion of a conventional touch panel panel 14 in which a portion of a metal line 130 formed on the substrate 110 is exemplarily illustrated for clarity of presentation. The person skilled in the art should know that the touch panel should include a plurality of metal lines in the frame area to be respectively connected to the sensing electrodes (not shown) in the sensing layer. The second B is a cross-sectional view taken along line CC' in the second A diagram, wherein the metal line 130 is covered with a protective layer 200 generally having a protective and insulating function.
在前述架構下，由於有保護層材料的牢固覆蓋， 故於考量金屬線路的電性及與底層材料之接著性而進行取捨時，往往會以電性為主要選用條件，意即為能保有良好的電傳導性、成本效益及可量產性，吾人將接受使用與底層材料附著力較差的金屬材料做為觸控面板中之金屬線路。 Under the aforementioned structure, due to the strong coverage of the protective layer material, Therefore, when considering the electrical properties of the metal circuit and the adhesion to the underlying material, the electrical selection is often used, which means that it can maintain good electrical conductivity, cost effectiveness and mass production. A metal material having poor adhesion to the underlying material will be accepted as a metal line in the touch panel.
在不同應用需求下，覆蓋有前述保護層材料的觸控面板往往還需進行多道後加工製程，例如水洗、烘烤、覆膜、重工撕膜等工序。舉例而言，第二B圖中所示保護層200在這些後加工製程工序中將受到來自不同方向的拉扯而予以撕除，而在以例如第二A圖中箭頭A或B所示方向撕除保護層以進行後加工製程時，金屬線路130將因與底層材料(常見為有機材料，例如裝飾層)黏著性不佳而容易自底層材料大面積或是區塊性脫離，造成製程良率損失。 Under different application requirements, touch panels covered with the aforementioned protective layer materials often require multiple post-processing processes, such as water washing, baking, film lamination, and heavy film tearing. For example, the protective layer 200 shown in FIG. 2B will be torn off by pulling from different directions in these post-processing processes, and is torn in the direction indicated by, for example, the arrow A or B in the second A diagram. In addition to the protective layer for the post-processing process, the metal line 130 will be easily separated from the underlying material by a large area or a block due to poor adhesion to the underlying material (usually an organic material such as a decorative layer), resulting in process yield. loss.
因此，仍亟待發展出一種能與現有製程相容、符合成本效益考量、維持金屬線路電性，並且能提高金屬線路對底層材料附著性的金屬線路佈設技術方案。 Therefore, it is still urgent to develop a metal circuit layout technical solution that is compatible with the existing process, is cost-effective, maintains the electrical properties of the metal line, and can improve the adhesion of the metal line to the underlying material.
鑑於前述習知技術之相關問題，本發明之目的在於提出一種新穎的金屬線路佈設方式，以能在與現有製程相容、符合成本效益考量並維持金屬線路電性下，提高金屬線路對底層材料的附著性。 In view of the related problems of the prior art, the object of the present invention is to propose a novel metal circuit layout method, which can improve the metal line to the underlying material while being compatible with the existing process, cost-effectively considering and maintaining the electrical properties of the metal line. Adhesion.
基於前述目的，本發明提出一種具有新穎金屬線路設計之觸控面板，其包含：一基板；一裝飾層，係形成於 該基板的一表面上之周邊區域，以定義該基板之一邊框區及由該邊框區圍繞之一可視區；一感測層，係形成於該基板上且包含分佈於該可視區中之複數個感測電極；及一金屬線路層，係形成於該裝飾層上與該邊框區相應的位置，該金屬線路層係電性連接該感測層中的部分感測電極。 Based on the foregoing objects, the present invention provides a touch panel having a novel metal circuit design, comprising: a substrate; a decorative layer formed on a peripheral region on a surface of the substrate to define a frame region of the substrate and a visible region surrounded by the frame region; a sensing layer is formed on the substrate and includes a plurality of pixels distributed in the visible region And a metal circuit layer is formed on the decorative layer at a position corresponding to the frame region, and the metal circuit layer is electrically connected to a portion of the sensing electrodes in the sensing layer.
在本發明之一實施例中，該感測層係一透明導電層。 In an embodiment of the invention, the sensing layer is a transparent conductive layer.
在本發明之一實施例中，該金屬線路層係經圖案化為包含複數條金屬線路，且各該金屬線路包含一次線路集合，該次線路集合中相鄰的兩條次線路之一間隔係介於10μm至0.1mm之間。 In an embodiment of the invention, the metal circuit layer is patterned to include a plurality of metal lines, and each of the metal lines includes a primary line set, and one of the adjacent two secondary lines in the secondary line set is spaced apart Between 10μm and 0.1mm.
基於前述目的，本發明亦提出一種形成前述新穎金屬線路之方法，該方法包含：提供一基板；於該基板上形成一裝飾層，該裝飾層係覆蓋該基板之周邊區域，以定義該基板之一邊框區及由該邊框區圍繞之一可視區；於該可視區中形成一透明導電層，該透明導電層係經圖案化為包含複數個感測電極；於該裝飾層上形成一金屬線路層，該金屬線路層係電性連接該感測層中的部分感測電極，且係經圖案化為包含複數條金屬線路，且各該金屬線路包含一次線路集合，該次線路集合中相鄰的兩條次線路之一間隔係介於10μm至0.1mm之間。 Based on the foregoing objects, the present invention also provides a method for forming the novel metal circuit described above, the method comprising: providing a substrate; forming a decorative layer on the substrate, the decorative layer covering a peripheral region of the substrate to define the substrate a border region and a visible region surrounded by the frame region; forming a transparent conductive layer in the visible region, the transparent conductive layer being patterned to include a plurality of sensing electrodes; forming a metal line on the decorative layer a layer, the metal circuit layer is electrically connected to a portion of the sensing electrodes in the sensing layer, and is patterned to include a plurality of metal lines, and each of the metal lines includes a primary line set, and adjacent to the line set One of the two secondary lines has a spacing between 10 μm and 0.1 mm.
在本發明之一實施例中，各所述次線路集合中的 各次線路係連接於其端部處。 In an embodiment of the present invention, each of the secondary line sets Each line is connected at its end.
在本發明之一實施例中，該次線路之線寬係小於30μm。 In an embodiment of the invention, the line width of the secondary line is less than 30 μm.
在本發明之一實施例中，該次線路集合包含複數條第一次線路與複數條第二次線路，各該第一次線路與各該第二次線路係以不同方向延伸。 In an embodiment of the present invention, the secondary line set includes a plurality of first lines and a plurality of second lines, and each of the first lines and each of the second lines extends in different directions.
在本發明之一實施例中，各該第一次線路與各該第二次線路之延伸方向間係呈一預定角度。較佳為，該預定角度包含、但不限於15°、30°、45°等。 In an embodiment of the invention, each of the first line and the extending direction of each of the second lines are at a predetermined angle. Preferably, the predetermined angle includes, but is not limited to, 15°, 30°, 45°, and the like.
在本發明之一實施例中，該次線路集合係呈網狀。 In an embodiment of the invention, the secondary line set is in the form of a mesh.
在本發明之一實施例中，各該金屬線路之寬度係介於10μm至2mm之間。 In an embodiment of the invention, the width of each of the metal lines is between 10 μm and 2 mm.
基於上述，本發明將金屬線路層中的金屬線路進行圖案化設計，使其形成為具有多條次線路及/或短線路的結構，以能在與現有製程相容、符合成本效益考量並維持金屬線路電性下，提高金屬線路對底層材料的附著性。 Based on the above, the present invention designs a metal line in a metal circuit layer to form a structure having a plurality of secondary lines and/or short lines to be compatible with existing processes, cost-effectively considered and maintained. Under the electrical properties of the metal line, the adhesion of the metal line to the underlying material is improved.
依據下述之非限制性具體實施例詳細說明，並參照如附圖式，即可更進一步理解本發明之前述構想與其他構想之特徵、實施態樣和優勢。 The above-described and other features, aspects, and advantages of the present invention will become more apparent from the detailed description of the appended claims.
12‧‧‧可視區 12‧‧‧visible area
14‧‧‧邊框區 14‧‧‧Border area
110‧‧‧基板 110‧‧‧Substrate
120‧‧‧感測層 120‧‧‧Sensor layer
130‧‧‧金屬線路 130‧‧‧Metal lines
200‧‧‧保護層 200‧‧‧protection layer
305‧‧‧裝飾層 305‧‧‧Decorative layer
315‧‧‧隔絕層 315‧‧‧Insulation
320‧‧‧感測層 320‧‧‧Sensor layer
330‧‧‧金屬線路 330‧‧‧Metal lines
430‧‧‧金屬線路 430‧‧‧Metal lines
430X、430Y‧‧‧端部 430X, 430Y‧‧‧ end
432‧‧‧次線路 432‧‧‧ lines
530‧‧‧金屬線路 530‧‧‧Metal lines
530X、530Y‧‧‧端部 530X, 530Y‧‧‧ end
532‧‧‧次線路 532‧‧‧ lines
534‧‧‧短線路 534‧‧‧Short line
630‧‧‧金屬線路 630‧‧‧Metal lines
630X、630Y‧‧‧端部 630X, 630Y‧‧‧ end
632‧‧‧次線路 632‧‧‧ lines
634‧‧‧短線路 634‧‧‧Short line
730X、730Y‧‧‧端部 730X, 730Y‧‧‧ end
732‧‧‧次線路 732‧‧‧ lines
736‧‧‧網狀結構 736‧‧‧Mesh structure
736X、736Y‧‧‧短線路 736X, 736Y‧‧‧ short lines
830X、830Y‧‧‧端部 830X, 830Y‧‧‧ end
832‧‧‧次線路 832‧‧‧ lines
836‧‧‧網狀結構 836‧‧‧ mesh structure
836X、836Y‧‧‧短線路 836X, 836Y‧‧‧ short lines
第一圖係一習知觸控面板的結構示意圖，其說明觸控面板中感測層與金屬線路之配置；第二A圖與第二B圖分別示意說明了習知觸控面板邊框區中之金屬線路配置的上視圖與截面圖；第三圖係說明根據本發明例示具體實施例之觸控面板部分結構截面示意圖；第四A圖與第四B圖分別示意說明了根據本發明第一具體實施例之觸控面板邊框區中金屬線路配置的上視圖與截面圖；第五圖係根據本發明第二具體實施例之觸控面板邊框區中金屬線路配置的上視示意圖；第六圖係根據本發明第三具體實施例之觸控面板邊框區中金屬線路配置的上視示意圖；第七圖係根據本發明第四具體實施例之觸控面板邊框區中金屬線路配置的上視示意圖；及第八圖係根據本發明第五具體實施例之觸控面板邊框區中金屬線路配置的上視示意圖。 The first figure is a schematic structural view of a conventional touch panel, which illustrates the configuration of the sensing layer and the metal line in the touch panel; the second A picture and the second B picture respectively illustrate the frame area of the conventional touch panel. The top view and the cross-sectional view of the metal circuit arrangement; the third figure is a schematic cross-sectional view of the touch panel according to the specific embodiment of the present invention; the fourth A and the fourth B respectively illustrate the first according to the present invention. A top view and a cross-sectional view of a metal line arrangement in a touch panel frame area of a specific embodiment; a fifth view is a top view of a metal line arrangement in a frame area of a touch panel according to a second embodiment of the present invention; FIG. 7 is a top plan view showing a configuration of a metal line in a frame area of a touch panel according to a third embodiment of the present invention; and FIG. 7 is a top view of a metal line arrangement in a frame area of a touch panel according to a fourth embodiment of the present invention; And the eighth figure is a top view of the metal line configuration in the frame area of the touch panel according to the fifth embodiment of the present invention.
為利於了解本發明之技術特徵、內容與優點及其所能達成的技術功效，茲將參照如附圖式，以例示方式詳細說明本發明之具體實施例。然需注意的是，下述說明與如附圖式係僅為示意及輔助說明書之用，而未必為實施本發明時 之真實比例與精確配置；因此，不應就所附圖式的比例與配置關係而解讀、限制本發明於實際實施之權利範圍，本發明之範圍係由如附申請專利範圍所定義。 The specific embodiments of the present invention are described by way of illustration It is to be understood that the following description and drawings are for the purpose of illustration The true proportions and precise configurations of the present invention are not to be construed as limiting the scope of the present invention, and the scope of the present invention is defined by the scope of the appended claims.
下文將配合圖式進一步說明本發明之具體實施例。需了解這些圖式中所標示之元件係僅為說明清晰之用，而非代表實際尺寸與比例。另外，為求圖面簡潔以利理解，在部分圖式中係省略了習知元件的繪示與描述。 Specific embodiments of the invention are further described below in conjunction with the drawings. It is to be understood that the elements indicated in these figures are for clarity and not for actual size and proportion. In addition, in order to facilitate the understanding of the drawings, the depiction and description of the conventional elements are omitted in the partial drawings.
請參閱第三圖，其係一觸控面板部分結構示意圖，用以說明根據本發明例示具體實施例之觸控面板走線結構的形成。首先提供一基板110；於該基板上形成一裝飾層305，裝飾層305可為例如一黑色矩陣(BM)層，其覆蓋於基板110之周邊區域，以定義出位於觸控面板周邊之一邊框區14及供使用者觸碰觀看之一可視區12。此外，可視需要形成一隔絕層315，隔絕層315一般係由有機材料製成，其覆蓋裝飾層305與整個基板110的表面上。 Please refer to the third figure, which is a structural diagram of a touch panel portion for illustrating the formation of a touch panel trace structure according to an exemplary embodiment of the present invention. First, a substrate 110 is provided; a decorative layer 305 is formed on the substrate, and the decorative layer 305 can be, for example, a black matrix (BM) layer covering the peripheral region of the substrate 110 to define a border around the touch panel. Zone 14 and one of the viewing zones 12 for the user to touch. In addition, an insulating layer 315 may be formed as desired. The insulating layer 315 is typically made of an organic material that covers the decorative layer 305 and the entire surface of the substrate 110.
其次，於可視區12中形成感測層320。一般而言，感測層320係於高溫條件下形成之一透明導電層，例如銦錫氧化物(ITO)，其經圖案化而形成為包含複數個感測電極與相應的連接結構(圖中未示)。 Next, a sensing layer 320 is formed in the visible region 12. In general, the sensing layer 320 is formed under a high temperature condition to form a transparent conductive layer, such as indium tin oxide (ITO), which is patterned to include a plurality of sensing electrodes and corresponding connection structures (in the figure) Not shown).
然後，金屬線路層330係形成裝飾層305上，其係電性連接該感測層中的部分感測電極，以利進行資料與電氣訊號的傳輸。在本發明中，金屬線路層係經圖案化為包含複 數條金屬線路，且每一條金屬線路都進一步形成為包含複數條次線路，下文中將進一步詳細說明。 Then, the metal circuit layer 330 is formed on the decorative layer 305, which is electrically connected to a part of the sensing electrodes in the sensing layer to facilitate the transmission of data and electrical signals. In the present invention, the metal circuit layer is patterned to include complex A plurality of metal lines, each of which is further formed to include a plurality of lines, as will be described in further detail below.
最後，於整體結構上形成一保護層200。一般而言，保護層200係一有機材料層，其將依應用所需而於後加工製程中予以撕除。 Finally, a protective layer 200 is formed on the overall structure. In general, the protective layer 200 is an organic material layer that will be torn off in the post-processing process as needed for the application.
第四A圖示意說明了根據本發明第一具體實施例之觸控面板邊框區中金屬線路配置的上視圖，其中金屬線路的轉折區域(如方塊D中所示)係進一步放大呈現於同一圖面中，如圖中虛線圍設之區域所示；第四B圖係沿著第四A圖中線段CC’所示之截面，其示意說明了本發明之新穎金屬線路結構。 4A is a top view schematically showing a metal line arrangement in a frame area of a touch panel according to a first embodiment of the present invention, wherein a turning area of the metal line (as shown in block D) is further enlarged and presented in the same In the drawing, the area indicated by the broken line in the figure is shown; the fourth B is a section along the line CC' in the fourth A drawing, which schematically illustrates the novel metal wiring structure of the present invention.
如前述說明，在本發明中，金屬線路層係經圖案化為包含複數條金屬線路，且每一條金屬線路都進一步形成為包含複數條次線路。為求表達清晰，第四A圖中係僅例示性繪示出形成於基板110上的其中一條金屬線路430的一部分，然發明所屬領域之技術人士應知，觸控面板於邊框區14中應包含有多條此類金屬線路，以分別連接於感測層中之感測電極(圖中未示)。 As explained above, in the present invention, the metal wiring layer is patterned to include a plurality of metal lines, and each of the metal lines is further formed to include a plurality of lines. In order to clarify the expression, a part of one of the metal lines 430 formed on the substrate 110 is exemplarily illustrated in the fourth embodiment, but it should be known to those skilled in the art that the touch panel should be in the frame area 14. A plurality of such metal lines are included to be respectively connected to the sensing electrodes (not shown) in the sensing layer.
如第四A圖所示，在邊框區14中，金屬線路層中的其中一條金屬線路430係進一步圖案化為包含一次線路集合，該次線路集合係由個別延伸且於金屬線路端部430X、430Y處連接的複數條次線路432所構成。由複數條次線路432所構 成之金屬線路430在X方向與Y方向分別具有線寬WX、WY，其數值一般係介於10μm至2mm之間。在所述次線路432中，各次線路432的寬度係小於30μm，且相鄰的兩條次線路432之間係相隔有一預定間隔d。根據本發明，該預定間隔大於10μm。另如前述說明，所形成之觸控面板上係覆有一保護層200(示於第四B圖)供保護及絕緣之用。 As shown in FIG. 4A, in the bezel area 14, one of the metal circuit layers 430 is further patterned to include a primary line set that is individually extended and ends at the metal line end 430X, The plurality of lines 432 connected at 430Y are formed. The metal line 430 composed of the plurality of line lines 432 has line widths W X and W Y in the X direction and the Y direction, respectively, and the value thereof is generally between 10 μm and 2 mm. In the secondary line 432, the width of each of the secondary lines 432 is less than 30 μm, and the adjacent two secondary lines 432 are separated by a predetermined interval d. According to the invention, the predetermined interval is greater than 10 μm. As described above, the formed touch panel is covered with a protective layer 200 (shown in FIG. 4B) for protection and insulation.
在本發明中，金屬線路係可進一步設計為包含有以不同方向延伸且彼此交錯之次線路與短線路，藉以增加可傳輸資料與電氣訊號之面積，以降低線路電阻並提高線路導通良率。下述第五圖至第八圖即示意說明了各種不同的設計態樣。 In the present invention, the metal circuit system can be further designed to include secondary lines and short lines extending in different directions and interlaced with each other, thereby increasing the area of the transmittable data and the electrical signal to reduce the line resistance and improve the line conduction yield. The various fifth and eighth figures below illustrate various different design aspects.
第五圖示意說明了根據本發明第二具體實施例之觸控面板邊框區中金屬線路配置的上視圖，其中金屬線路的轉折區域(如方塊E中所示)係進一步放大呈現於同一圖面中，如圖中虛線圍設之區域所示。 5 is a top view schematically showing a metal line arrangement in a frame area of a touch panel according to a second embodiment of the present invention, wherein a turning area of the metal line (as shown in block E) is further enlarged and displayed in the same figure. In the face, it is shown in the area enclosed by the dotted line in the figure.
在此具體實施例中，金屬線路層中的其中一條金屬線路530係進一步圖案化為包含一次線路集合，該次線路集合係由個別延伸且於金屬線路端部530X、530Y處連接的複數條次線路532所構成。由複數條次線路532所構成之金屬線路430在X方向與Y方向分別具有線寬WX、WY，其數值一般係介於10μm至2mm之間。在此具體實施例中，次線路集合進一步包含了與各次線路532垂直交錯的短線路534；其中，各次線 路532與短線路534的寬度係小於30μm，且相鄰的兩條次線路432之間係相隔有一預定間隔d，相鄰的兩條短線路534之間係相隔有一預定間隔p。根據本發明，個別預定間隔d、p係大於10μm。 In this embodiment, one of the metal circuit layers 530 is further patterned to include a primary line set that is a plurality of lines that are individually extended and joined at the metal line ends 530X, 530Y. Line 532 is formed. The metal line 430 composed of the plurality of line lines 532 has line widths W X and W Y in the X direction and the Y direction, respectively, and the value is generally between 10 μm and 2 mm. In this embodiment, the secondary line set further includes a short line 534 that is vertically interleaved with each of the secondary lines 532; wherein the width of each of the secondary lines 532 and short lines 534 is less than 30 μm, and the adjacent two secondary lines 432 There is a predetermined interval d between the adjacent two short lines 534 separated by a predetermined interval p. According to the invention, the individual predetermined intervals d, p are greater than 10 μm.
第六圖示意說明了根據本發明第三具體實施例之觸控面板邊框區中金屬線路配置的上視圖，其中金屬線路的轉折區域(如方塊F中所示)係進一步放大呈現於同一圖面中，如圖中虛線圍設之區域所示。 6 is a top view schematically showing a metal line arrangement in a frame area of a touch panel according to a third embodiment of the present invention, wherein a turning area of the metal line (as shown in block F) is further enlarged and displayed in the same figure. In the face, it is shown in the area enclosed by the dotted line in the figure.
在此具體實施例中，金屬線路層中的其中一條金屬線路630係進一步圖案化為包含一次線路集合，該次線路集合係由個別延伸且於金屬線路端部630X、630Y處連接的複數條次線路632所構成。由複數條次線路632所構成之金屬線路630在X方向與Y方向分別具有線寬WX、WY，其數值一般係介於10μm至2mm之間。在此具體實施例中，次線路集合進一步包含了與各次線路632斜向交錯的斜向短線路634；意即，在此具體實施例中，各斜線短線路634係分別與各次線路632之間呈現一預定角度之傾斜。較佳為，該預定角度係包含、但不限於15°、30°、45°等。 In this embodiment, one of the metal line layers 630 is further patterned to include a primary line set that is a plurality of lines that are individually extended and joined at the metal line ends 630X, 630Y. Line 632 is formed. The metal line 630 composed of the plurality of line lines 632 has line widths W X and W Y in the X direction and the Y direction, respectively, and the value thereof is generally between 10 μm and 2 mm. In this particular embodiment, the secondary line set further includes an oblique short line 634 that is obliquely staggered with each of the secondary lines 632; that is, in this embodiment, each oblique short line 634 is associated with each of the secondary lines 632 A tilt of a predetermined angle is presented between them. Preferably, the predetermined angle includes, but is not limited to, 15°, 30°, 45°, and the like.
除利用在不同方向中延伸且彼此交錯之次線路與短線路來增加可傳輸資料與電氣訊號之面積之外，根據本發明，金屬線路層亦可經圖案化為在兩條次線路之間形成一網狀結構，如第七圖與第八圖所示。此網狀結構設計同樣有 助於降低金屬線路之線路電阻並提高線路導通良率。 In addition to the use of secondary and short lines extending in different directions and interleaved to increase the area of transmittable data and electrical signals, in accordance with the present invention, the metal circuit layer can also be patterned to form between two secondary lines. A mesh structure, as shown in the seventh and eighth figures. This mesh structure design also has Helps reduce the line resistance of metal lines and improve line conduction yield.
第七圖示意說明了根據本發明第四具體實施例之觸控面板邊框區中金屬線路配置的上視圖，其中金屬線路的轉折區域(如方塊G中所示)係進一步放大呈現於同一圖面中，如圖中虛線圍設之區域所示。 7 is a top view schematically showing a metal line arrangement in a frame area of a touch panel according to a fourth embodiment of the present invention, wherein a turning area of the metal line (as shown in block G) is further enlarged and displayed in the same figure. In the face, it is shown in the area enclosed by the dotted line in the figure.
在此具體實施例中，金屬線路層中的其中一條金屬線路係進一步圖案化為包含一次線路集合，該次線路集合係由個別延伸且於金屬線路端部730X、730Y處連接的兩條次線路732所構成。藉由圖案化鏤空方式，兩條次線路732之間可形成為一網狀線路結構736，該網狀線路結構係由複數條彼此垂直相交的短線路736X與736Y所構成。由次線路732與網狀線路結構736所構成之金屬線路730在X方向與Y方向分別具有線寬WX、WY，其數值一般係介於10μm至2mm之間。在此具體實施例中，各次線路732與短線路736X、736Y的寬度係小於30μm，且相鄰的兩條短線路間之間隔係大於10μm。 In this embodiment, one of the metal circuit layers is further patterned to include a primary line set, the secondary line set being two secondary lines that are individually extended and connected at the metal line ends 730X, 730Y. 732 is composed. By patterning the hollowing out, the two secondary lines 732 can be formed as a mesh line structure 736 which is composed of a plurality of short lines 736X and 736Y that perpendicularly intersect each other. The metal line 730 composed of the secondary line 732 and the mesh line structure 736 has line widths W X and W Y in the X direction and the Y direction, respectively, and the value thereof is generally between 10 μm and 2 mm. In this embodiment, the width of each of the secondary lines 732 and the short lines 736X, 736Y is less than 30 μm, and the spacing between adjacent two short lines is greater than 10 μm.
第八圖示意說明了根據本發明第五具體實施例之觸控面板邊框區中金屬線路配置的上視圖，其中金屬線路的轉折區域(如方塊H中所示)係進一步放大呈現於同一圖面中，如圖中虛線圍設之區域所示。 8 is a top view schematically showing a metal line arrangement in a frame area of a touch panel according to a fifth embodiment of the present invention, wherein a turning area of the metal line (as shown in block H) is further enlarged and displayed in the same figure. In the face, it is shown in the area enclosed by the dotted line in the figure.
在此具體實施例中，金屬線路層中的其中一條金屬線路係進一步圖案化為包含一次線路集合，該次線路集合係由個別延伸且於金屬線路端部830X、830Y處連接的兩條次 線路832所構成。藉由圖案化鏤空方式，兩條次線路832之間可形成為一網狀線路結構836，該網狀線路結構係由複數條彼此垂直相交的短線路836X與836Y所構成。由次線路832與網狀線路結構836所構成之金屬線路830在X方向與Y方向分別具有線寬WX、WY，其數值一般係介於10μm至2mm之間。在此具體實施例中，各次線路832與短線路836X、836Y的寬度係小於30μm，且相鄰的兩條短線路間之間隔係大於10μm。 In this embodiment, one of the metal circuit layers is further patterned to include a primary line set, the secondary line set being two secondary lines that are individually extended and connected at the metal line ends 830X, 830Y. 832 is composed. By patterning the hollowing out, the two secondary lines 832 can be formed as a mesh line structure 836 which is composed of a plurality of short lines 836X and 836Y which perpendicularly intersect each other. The metal line 830 composed of the secondary line 832 and the mesh line structure 836 has line widths W X and W Y in the X direction and the Y direction, respectively, and the value is generally between 10 μm and 2 mm. In this embodiment, the width of each of the secondary lines 832 and the short lines 836X, 836Y is less than 30 μm, and the spacing between adjacent two short lines is greater than 10 μm.
與第七圖所示具體實施例不同處在於，在第八圖所示結構中，並非每條短線路836X與836Y都在其端部處連接於次線路832。此佈局方式的優點在於容易藉由程式化而實現。 The difference from the embodiment shown in the seventh embodiment is that, in the configuration shown in the eighth embodiment, not every short line 836X and 836Y is connected to the secondary line 832 at its end. The advantage of this layout is that it is easy to implement by stylization.
在本發明中，為了分散保護層在後加工製程中被撕除而作用於金屬線路層的拉扯力，係將金屬線路層中的金屬線路進行圖案化設計，使其形成為具有多條次線路及/或短線路的結構；特別是，次線路(或短線路)的線寬、相鄰次線路(或短線路)之間的間隔係經設計，以分散保護層在被撕除時作用於金屬線路受力端點上的作用力。在本發明中，雖以線寬為小於30μm、間隔為大於10μm之次線路(或短線路)作為例示說明，然發明所屬領域之技術人士皆可理解，在合併考量電阻特性要求與良率損失的情況下，次線路(或短線路)之線寬與間隔係可依選用材質進行調整地調整。惟此調整仍不脫離本發明所欲保護之範疇。 In the present invention, in order to disperse the pulling force of the protective layer which is removed in the post-processing process and act on the metal wiring layer, the metal wiring in the metal wiring layer is patterned to form a plurality of secondary lines. And/or the structure of the short line; in particular, the line width of the secondary line (or short line) and the spacing between adjacent secondary lines (or short lines) are designed to act on the dispersed protective layer when it is torn off The force on the end of the metal line. In the present invention, although a line (or a short line) having a line width of less than 30 μm and an interval of more than 10 μm is exemplified, those skilled in the art can understand that the combination of resistance characteristics and yield loss is considered. In the case of the line (or short line), the line width and spacing can be adjusted according to the selected material. However, this adjustment does not depart from the scope of the invention to be protected.
綜上所述，本發明提出了一種新穎的金屬線路結構設計與佈設方式，以能在與現有製程相容、符合成本效益考量並維持金屬線路電性下，提高金屬線路對底層材料的附著性。因此，本發明實為一新穎、進步且具產業實用性與競爭性之創作，深具發展價值。 In summary, the present invention proposes a novel metal circuit structure design and layout method, which can improve the adhesion of the metal line to the underlying material while being compatible with the existing process, cost-effectively considering and maintaining the electrical properties of the metal line. . Therefore, the present invention is a novel, progressive and industrially practical and competitive creation, and has profound development value.
需特別注意的是，在本發明之說明書中所揭露的所有特徵都可能與其他方法或結構結合，本說明書中所揭露的每一個特徵都可能選擇性的以相同、相等或相似目的特徵所取代，因此，除了特別顯著的特徵之外，本發明之說明書中所揭露的所有特徵僅是相等或相似特徵中的一個例子。 It is important to note that all features disclosed in the description of the invention may be combined with other methods or structures, and each of the features disclosed in this specification may be selectively replaced with identical, equal or similar features of interest. Therefore, all of the features disclosed in the description of the present invention are merely one of the equivalent or similar features, except for the particularly characteristic features.
雖然本發明已以較佳實施例揭露如上，然其並非用以限定本發明，任何熟悉此技藝者，在不脫離本發明之精神和範圍內，當可作各種之更動與潤飾。 While the invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and various modifications and changes can be made without departing from the spirit and scope of the invention.
14‧‧‧邊框區 14‧‧‧Border area
110‧‧‧基板 110‧‧‧Substrate
430‧‧‧金屬線路 430‧‧‧Metal lines
430X、430Y‧‧‧端部 430X, 430Y‧‧‧ end
432‧‧‧次線路 432‧‧‧ lines
Claims (14)
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