200949636 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種觸控面板，尤指一種具抗靜電功能 的觸控面板。 【先前技術】 觸控面板係目則廣為大眾使用的輸入介面之一，其概 由一基板、一下導電層、-上導電層及一保護層所組成， 以四線式電阻式觸控面板為例，該下導電層的兩相對側形 °成有X導線’該上導電層係間隔設置於下導電層上並對應 該下導電層的另兩相對侧形成有γ導線，每一 x、γ導線 係分別經由一引導線而延伸匯集至同一側邊，其中χ、γ 導線所環繞之内部區域即為觸控面板之觸控感應區’該保 護層係設於上導電層上方以作為觸控端。 上述觸控面板對壓力具有高敏感度，當物體施壓於其 上時會有電流訊號產生以定出壓力源位置，然而一般使用 者在在會透過手指直接操作，觸控面板因而容易接收經人 體接觸摩擦產生的靜電，靜電放電將容易造成觸控面板感 應失效或疋誤判’因此觸控面板之抗靜電能力係為製造廠 商十分重視的項目之一。 Θ又，觸控面板之製程良率與其導電層上的透明導電材 料疋否塗佈均勻有關，而觸控面板包含觸控區外圍係為導 線没置的區域，由於該些條導線具有一定厚度而這些分 佈不平均的導線將會造成觸控面板的平坦度並非最佳 仍有待進一步解決之方案。 4 200949636 【發明内容】 有鑑於此，本發明之主要目的係提供一種具抗靜電功 能的觸控面板。 欲達上述目的所使用之主要技術手段，係令該觸控面 板包含： 一基板； 下導電層，係設於該基板上’其上表面設有—下導 電薄膜、複數下導線及填充材’該些下導線係與下導電薄 膜之兩相對側邊疊接’該填充材係設^該下導電薄膜未包 含導線之侧邊，並與下導線厚度相同； -上導電層’係間隔設置於該下導電層上，其下表面 «又有上導電薄膜、複數上導線、填充材以及一提供靜電 導除路徑的接地導線，該些上導線係相對於下導線而與上 導電薄膜之另兩相對邊緣疊接，該填充材係設於該上導電 薄膜未包含導線之側邊，並與上導線厚度相同；該接地導 線係圍繞於該上導線與該填充材；以及 一軟性電路板，係具有複數訊號線及一夾設於上、下 導電層之間的連接端，該些訊號線延伸至連接端而分別連 接前述上、下導線。 由於上導電層四周邊緣圍設有一接地導線，該接地導 線可直接連接-外部的接地線；或者於軟性電路板進 設一接地訊號線，使接地導線可與上導線一同連接至軟性 電路板，當靜電產生時可經由軟性電路板導出。 200949636 當本發明之觸控面板實際應用於具觸控功能的電子產 品時’為令該電子產品於其觸控面可達到單—整體平面的 效果’本發明觸控面板可進一步包含一保護層設於上導電 二上，並令該保護層面積超出下方下導電層及基板，以涵 盍該電子產品位於該觸控面板外圍之其他非觸控區 圍。 又為使位於保護層下方的觸控結構與其一旁的非觸控The invention relates to a touch panel, and more particularly to a touch panel with antistatic function. [Prior Art] The touch panel system is widely used as one of the input interfaces used by the public. It consists of a substrate, a lower conductive layer, an upper conductive layer and a protective layer, and a four-wire resistive touch panel. For example, the opposite side faces of the lower conductive layer are formed with X wires. The upper conductive layers are spaced apart from the lower conductive layer and the other opposite sides of the lower conductive layer are formed with γ wires, each x, The γ-wires are respectively extended to the same side via a guiding line, wherein the inner area surrounded by the χ and γ wires is the touch sensing area of the touch panel, and the protective layer is disposed above the upper conductive layer as a touch Control terminal. The touch panel has high sensitivity to pressure. When an object is pressed thereon, a current signal is generated to determine the position of the pressure source. However, the user usually operates directly through the finger, and the touch panel is easy to receive the light. The static electricity generated by the human body contact friction, electrostatic discharge will easily cause the touch panel to fail or delay the error. Therefore, the antistatic ability of the touch panel is one of the projects that manufacturers pay great attention to. Moreover, the process yield of the touch panel is related to whether the transparent conductive material on the conductive layer is uniformly coated, and the touch panel includes a region where the periphery of the touch region is not disposed, because the wires have a certain thickness. These unevenly distributed wires will cause the flatness of the touch panel to be not optimal and still need to be further solved. 4 200949636 SUMMARY OF THE INVENTION In view of the above, it is a primary object of the present invention to provide a touch panel having an antistatic function. The main technical means for achieving the above purpose is that the touch panel comprises: a substrate; a lower conductive layer is disposed on the substrate, and the upper surface is provided with a lower conductive film, a plurality of lower wires and a filler. The lower wires are overlapped with the opposite sides of the lower conductive film. The filler film is provided with the lower conductive film not including the side of the wire and having the same thickness as the lower wire; the upper conductive layer is spaced apart from The lower surface of the lower conductive layer has an upper conductive film, a plurality of upper wires, a filler, and a grounding wire for providing an electrostatic conduction path, and the upper wires are opposite to the lower wires and the other of the upper conductive films. The opposite edge is stacked, the filler is disposed on the side of the upper conductive film that does not include the wire, and has the same thickness as the upper wire; the ground wire surrounds the upper wire and the filler; and a flexible circuit board The utility model has a plurality of signal lines and a connection end sandwiched between the upper and lower conductive layers, wherein the signal lines extend to the connection ends to respectively connect the upper and lower wires. Since a grounding wire is disposed around the periphery of the upper conductive layer, the grounding wire can be directly connected to the external grounding wire; or a grounding signal wire is connected to the flexible circuit board, so that the grounding wire can be connected to the flexible circuit board together with the upper wire. When static electricity is generated, it can be exported via a flexible circuit board. 200949636 When the touch panel of the present invention is actually applied to an electronic product having a touch function, the touch panel of the present invention may further comprise a protective layer for the purpose of enabling the electronic product to achieve a single-to-one planar surface on the touch surface thereof. The upper conductive layer is disposed on the upper conductive layer and the lower conductive layer and the substrate are disposed to cover the other non-touch area of the electronic device. Also for making the touch structure under the protective layer and the non-touch side
區域並非處於同—等高的平面而具有斷差，將可能造成保 護層在貼附時於觸控結構的邊緣處形成摺痕，影響整體平 的卜觀疋以，可令上導電薄膜面積形狀對應保護層， 使得保護層在貼附於上導電料，不易受斷㈣響而產生 明顯的摺痕。 此外，將與導電線相同厚度的填充材填充於導電薄膜 未設有導線之侧邊，可使上、下導電層貼合之後因導電線 7厚度分佈不均而影響整體平坦度的情況獲得較佳改善， 〇疋以，本發明可更為精確地控制觸控面板之平坦度。 【實施方式】 ，參考第一圖及第二圖所示’係本發明一較佳實施例 之立體分解圖及組合圖，其包含： —基板（1 〇); 下導電層（20)，係設於該基板（1〇)上，進 步參考第三圖所示’其上表面形成有一下導電薄膜（2 〇 '兩下導線（22)及填充材（23)，該兩下導線 200949636 (2 2 )係與下導電薄膜（2丄）之兩相對側邊疊接，各 下導線（2 2 )係一端延伸有一下引導線（2 2 〇 )匯集 至下導㈣（2 〇 )之—側’各下引導線（2 2 ◦)具有 -連接端（2 2 Q a ) ’該填充材（2 3 )係設於該下導 電薄膜（2 1 )未包含下導線（2 2 )及下引導線（2 2 0 )之侧邊，並與下導線（2 2 )厚度相同，以使下導電 薄膜（2 1 )外圍的厚度較為平均’該填充材（2 3)可 為非導電油墨或銀線； 一上導電層（30),進一步參考第四圖，該上導電 層（3 0 )四周側邊藉由雙面膠（3 0 〇 )間隔設置於該 下導電層（20)上，且其與下導電層（2〇)之間係設 有複數間隙手（3 〇 1 )，再配合參考第五圖所示，該上 導電層（3 〇)下表面形成有一上導電薄膜（3 1 )、兩 上導線（3 2)、填充材（3 3)及一接地導線（34)， 該兩上導線（3 2 )係相對於下導線（2 2 )而與上導電 薄膜（3 1 )之另兩相對侧邊疊接，各上導線（3 2 )係 一端延伸有一上引導線（3 2 〇)匯集至與前述下引導線 (220)同側’各上引導線（320)具有一連接端（3 20a);該填充材（33)係設於該上導電薄膜（31) 未包含上導線（3 2 )及上引導線（3 2 0 )之側邊，並 與上導線（3 2 )厚度相同，以使上導電薄膜（3 i )外 圍的厚度較為平均，該填充材（3 3)可為非導電油墨或 銀線；該接地導線（3 4 )係設於該上導電層最外周圍處 而圍繞於上導線（32)、上引導線（3,20)與填充材 200949636 (3 3 )外側，該接地導線 4 0 )與上引導線（3 2 〇、 以及 C 3 4 )並具有一連接端（3 之連接端（3 2 0 a )同側； 一軟性電路板（4〇) 〆 } ’係具有一連接端（40〇) 及複數訊號線（4 1 )，兮造拉* U ) 該連接端（4 〇 〇 )係夾設於上、 下導電層（30) (2〇)之„ ^ <間’而該些訊號線（4 1 ) 係設於軟性電路板（4 〇 )沾u 的上、下表面並延伸至該連接 端（4 0 0 )而分別與相剩座.，，} ❹ 、相對應之該上、下引導線（3 2 〇 ) (220)的連接端（32 (22〇a)電性連接； 再者’本實施例中，軟性雷政 釈性電路板（4 〇 )進一步於上表面 設有一接地訊號線（4 2 )，呤拉u / 匕），該接地訊號線（4 2 )係對 應電連接上導電層,、 之接地導線（34)的連接端 ( 3 4 0 )。 當本發明之觸控面板因使用者手指按壓操作等因素而 產生有靜電時，靜電可經由上導電層（3〇)的接地導線 (34)傳至軟性電路板（40)的接地訊號線（42) 而導出觸控面板外，可避免觸控面板遭受到靜電的破壞而 影響其觸控效果。 請參閱第四圖及第六圖，由於填充材（3 3) (2 3、 與上、下導線（32) (22)厚度相同，是以，當上導 電層（30)與下導電層（20)相對貼合時，可以平整 地貼合在一起而使觸控面板保持良好的平坦度。 本實施例中係進一步包含一保護層（5 〇 )，如第四 圖所示，其藉由黏膠（500)貼附於上導電層（3〇)， 8 200949636 四周侧邊係設有色漆（5丄）， )(20)的導線（32) (2 2 2 0 )的佈線區域，以求美 且該保護層（5 Ο )下表面的 可遮蔽上、下導電層（3〇 2 )及引導線（3 2 〇 )( 觀0 明參考第七圖及第八圖所示，係本發明另一較佳實施 例，與前-實施例不同處在於：前述保護層（5 〇 )與上 導電層（30)面積係超出下導電層（2〇)及基板（1 0 )外圍，使觸控面板應用於一般電子產品時，可涵蓋其 他非觸控區域，達到觸控面板的觸控端一側呈現全平面的 外觀；而上導電層（3〇)面積形狀對應保護層（5〇)， 可使保護I (5 0)較不易受下方觸控結構與其他非觸控 區之間高低的斷差影響，而產生摺痕；再者，本實施例中： 該上導電;§ (3Q)設於周圍的接地導線（34)係因上 導電層（30)面積延伸超出下導電層（2〇)的關係， 可直接連接一外部的接地線，由於軟性電路板（4 〇 )於 連接端（4 0 0 )之外的部分係有絕緣保護，故不會與接 地導線（3 4 )電性接觸。 综上所述，本發明係主要於上導電層表面設有一接地 導線環繞於四周側邊，該接地導線可連接至該軟性電路板 或一外部的接地線，提供導電導除的路徑而將靜電導出， 將可使觸控面板達到良好的抗靜電干擾效果；再者，將與 導電線相同厚度的填充材填充於導電薄膜未設有導線之側 邊’可使導電層四周側邊的佈線區厚度較為均等，當上、 下導電層貼合之後，原本因導電線的分佈不均而影響整體 9 200949636 本發明還可更精確 平坦度的情況可獲得較佳改善，是以 地控制觸控面板之平坦度。 【圖式簡單說明】 第圖.係本發明一較佳實施例之立體分解圖。 第一圖.係弟—圖之組合圖。 第—圖.係第-圖之下導電層俯視圖。 第四圖：择外笛—m ^The area is not in the same plane of the same height and has a gap, which may cause the protective layer to form a crease at the edge of the touch structure when attached, which affects the overall flatness and the shape of the upper conductive film. Corresponding to the protective layer, the protective layer is attached to the upper conductive material, and is not easily broken (four) and has obvious creases. In addition, a filler having the same thickness as the conductive wire is filled on the side of the conductive film where the conductive wire is not provided, so that the upper and lower conductive layers can be bonded together, and the thickness of the conductive wire 7 is unevenly distributed to affect the overall flatness. Preferably, the present invention can more precisely control the flatness of the touch panel. [Embodiment] Referring to the first and second figures, a perspective exploded view and a combined view of a preferred embodiment of the present invention includes: a substrate (1 〇); a lower conductive layer (20), It is arranged on the substrate (1〇), and the improvement is as shown in the third figure. The upper surface is formed with a lower conductive film (2 〇 'two lower wires (22) and a filler material (23), and the two lower wires 200949636 (2) 2) is attached to the opposite sides of the lower conductive film (2丄), and each of the lower wires (2 2 ) is extended at one end with a lower guide line (2 2 〇) collected to the side of the lower guide (4) (2 〇) 'each lower guide wire (2 2 ◦) has a - connection end (2 2 Q a ) ' the filler material (2 3 ) is provided on the lower conductive film (2 1 ) without the lower wire (2 2 ) and the lower guide The side of the line (2 2 0 ) is the same thickness as the lower wire (2 2 ) so that the thickness of the periphery of the lower conductive film (2 1 ) is relatively average. The filler (23) may be a non-conductive ink or silver. a conductive layer (30), further referring to the fourth figure, the periphery of the upper conductive layer (30) is disposed on the lower conductive layer by a double-sided adhesive (30 〇) 20) above, and a plurality of gap hands (3 〇 1 ) are disposed between the lower conductive layer and the lower conductive layer (2 〇), and the upper surface of the upper conductive layer (3 〇) is formed with an upper surface as shown in the fifth figure. a conductive film (31), two upper wires (32), a filler (33), and a ground wire (34), the upper wires (32) are electrically conductive with respect to the lower wires (2 2 ) The other two opposite sides of the film (3 1 ) are overlapped, and each of the upper wires (3 2 ) is extended at one end with an upper guiding line (3 2 〇) collected on the same side as the aforementioned lower guiding line (220). (320) having a connecting end (3 20a); the filling material (33) is disposed on the side of the upper conductive film (31) not including the upper wire (3 2 ) and the upper guiding wire (3 2 0 ), and The thickness of the upper conductive film (3 i ) is the same as the thickness of the upper conductive film (3 2 ), and the filling material (3 3) may be a non-conductive ink or a silver wire; the grounding wire (3 4 ) is provided Surrounding the upper wire (32), the upper guiding wire (3, 20) and the outside of the filler 200949636 (3 3 ) at the outermost periphery of the upper conductive layer, the grounding wire 4 0 ) and the upper guiding wire (3 2 〇 To C 3 4 ) and has a connection end (3 connection end (3 2 0 a) on the same side; a flexible circuit board (4〇) 〆} ' has a connection end (40〇) and a complex signal line (4 1 )), the connection (4 〇〇) is sandwiched between the upper and lower conductive layers (30) (2〇), and the signal lines (4 1 ) are set. The upper and lower surfaces of the flexible circuit board (4 〇) are attached to the upper and lower surfaces of the u and extend to the connection end (400), respectively, and the upper and lower guide lines corresponding to the remaining seats, . 〇) (220) the connection end (32 (22〇a) is electrically connected; in addition, in this embodiment, the soft Leizheng circuit board (4 〇) further has a ground signal line on the upper surface (4 2 ), the pull-out u / 匕), the ground signal line (4 2 ) corresponds to the electrical connection of the conductive layer, the connection end of the grounding conductor (34) (3 4 0). When the touch panel of the present invention generates static electricity due to factors such as a user's finger pressing operation, static electricity can be transmitted to the ground signal line of the flexible circuit board (40) via the grounding conductor (34) of the upper conductive layer (3). 42) When the touch panel is exported, the touch panel can be prevented from being damaged by static electricity and affecting the touch effect. Please refer to the fourth and sixth figures, because the filler (3 3) (2 3, the same thickness as the upper and lower wires (32) (22) is, when the upper conductive layer (30) and the lower conductive layer ( 20) When the film is relatively bonded, it can be flatly bonded to maintain a good flatness of the touch panel. In this embodiment, a protective layer (5 〇) is further included, as shown in the fourth figure, Adhesive (500) is attached to the upper conductive layer (3〇), 8 200949636 is surrounded by colored paint (5丄), (20) wire (32) (2 2 2 0) wiring area, Seeking the upper and lower conductive layers (3〇2) and the guide lines (3 2 〇) on the lower surface of the protective layer (5 Ο) (see Figure 7 and Figure 8 for details). Another preferred embodiment of the invention differs from the previous embodiment in that the protective layer (5 〇) and the upper conductive layer (30) are outside the lower conductive layer (2 〇) and the periphery of the substrate (10), so that When the touch panel is applied to a general electronic product, it can cover other non-touch areas, and the touch panel side of the touch panel has a full-plane appearance; and the upper conductive layer (3〇) surface The shape corresponds to the protective layer (5〇), so that the protection I (50) is less susceptible to the difference between the lower touch structure and the other non-touch areas, and the crease is generated; further, in this embodiment : The upper conductive layer; § (3Q) The grounding conductor (34) disposed around the outer conductive layer (30) extends beyond the lower conductive layer (2〇), and can be directly connected to an external grounding wire due to softness. The part of the circuit board (4 〇) outside the connection end (400) is insulated and does not electrically contact the grounding conductor (34). In summary, the present invention is mainly for the upper conductive layer. The surface is provided with a grounding wire surrounding the surrounding side. The grounding wire can be connected to the flexible circuit board or an external grounding wire to provide a conductive guiding path for discharging static electricity, which will enable the touch panel to achieve good antistatic performance. The interference effect; further, filling the filler of the same thickness as the conductive line on the side of the conductive film not provided with the wire" can make the thickness of the wiring area around the side of the conductive layer relatively equal, when the upper and lower conductive layers are attached Originally due to uneven distribution of conductive lines Affecting the whole 9 200949636 The invention can also achieve better improvement in the case of more accurate flatness, and the flatness of the touch panel is controlled by the ground. [Schematic description] Fig. 3 is a perspective view of a preferred embodiment of the present invention Exploded view. The first picture. The combination of the younger brother and the figure. The first picture shows the top view of the conductive layer below the first picture. The fourth picture: the outer flute - m ^
^ '、σ弟一圖4 ~ 4割面線之部分剖視圖。 第五圖：係係第—圖之上導電層俯視圖。 圖·係沿第二圖6 — 6割面線之部分剖視圖。 圖係本發明另一較佳實施例之立體分解圖。 第乂圖.係本發明另一較佳實施例之部分剖視圖。 【主要元件符號說明】 (1 〇 )基板 (2 1 )下導電薄臈 (2 2 0)下引導線 (2 3 )填充材 (3 ο 〇)雙面膠 (3 1 )上導電薄膜 (3 2 〇 )上引導線 (3 3 )填充材 (3 4 〇 )連接端 (4 〇 0 )連接端 (2 〇 )下導電層 (2 2 )下導線 (2 2 0 a )連接端 (3 〇 )下導電層 (3 〇 1 )間隙子 (3 2 )上導線 (3 2 0 a )連接端 (3 4 )接地導線 (4 0 )軟性電路板 (4 1 )訊號線 10 200949636 (4 2 )接地訊號線 （5 0 )保護層 (5 0 0 )黏膠 （5 1 )色漆^ ', σ brother a figure 4 ~ 4 section of the cut line. Figure 5: Top view of the conductive layer on the top of the system. Figure is a partial cross-sectional view along the cut line of Figure 6-6. The drawings are perspective exploded views of another preferred embodiment of the present invention. Figure is a partial cross-sectional view of another preferred embodiment of the present invention. [Description of main component symbols] (1 〇) Substrate (2 1 ) under conductive thin 臈 (2 2 0) lower guide wire (2 3 ) filler (3 ο 〇) double-sided adhesive (3 1 ) on conductive film (3 2 〇) upper guide wire (3 3 ) filler (3 4 〇) connection end (4 〇 0 ) connection end (2 〇) lower conductive layer (2 2 ) lower wire (2 2 0 a ) connection end (3 〇 Lower conductive layer (3 〇1) spacer (3 2 ) upper conductor (3 2 0 a ) connection terminal (3 4 ) grounding conductor (40) flexible circuit board (4 1) signal line 10 200949636 (4 2 ) Ground signal line (5 0) protective layer (500) adhesive (5 1) paint
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