201009667 六、發明說明： 【發明所屬之技術領域】 本發明係有關於一種觸控面板，且特別是有關於具有 虛置圖案之觸控面板。 【先前技術】 電容式觸控面板是常用的觸控面板之一，其透過以導 體觸碰面板時所產生之電容變化來完成指令的輸入，不需 施加壓力而具有較佳的靈敏度（touch sensitivity)與結構穩 定度。然而，電容式觸控面板因觸控電極間之高度差而造 成光的反射率不同，使光學顯示品質不佳，造成使用上的 不便。且感應電極間之間距寬度太大，亦會影響電容式觸 控面板之顯示品質。 因此，業界亟需具有良好光學顯示品質之觸控面板。 【發明内容】 根據本發明提供一種觸控面板，包括位於基底上之下 導電層，具有複數個第一導電圖案，其包括複數個第一電 極部，及具複數個第一虛置圖案，第一虛置圖案與第一導 電圖案絕緣；位於下導電層上之絕緣層；及位於絕緣層上 之上導電層，具有複數個第二導電圖案，其包括複數個第 二電極部，分別與第一虛置圖案重疊，及複數個第二虛置 圖案，第二虛置圖案與第二導電圖案絕緣，且分別與第一 電極部重疊。 根據本發明更提供一種影像顯示系統，包含一顯示裝 0773-A33835TWF P2008030 4 201009667 置，其中顯示裝置包括上述之觸控面板。 為讓本發明之上述和其他目的、特徵、和優點能更明 顯易懂，下文特舉出較佳實施例，並配合所附圖式，作詳 細說明如下： 【實施方式】 根據本發明，係於觸控面板中形成電性浮接的虛置圖 案（Floating Dummy Pattern)，透過調整虛置圖案之位置、 φ 大小、與型態來達到調節光線路徑之功效，進而增進觸控 面板的光學顯示品質。 根據本發明之觸控面板包括下導電層、上導電層、以 及夾於上、下導電層之間的絕緣層。第ΙΑ、1B圖分別顯 示根據本發明之觸控面板的下導電層204與上導電層208 之佈局。 如第1A圖所示，下導電層204包括複數個第一導電 圖案204a及複數個第一虛置圖案204b，其中第一虛置圖 ❹ 案204b與第一導電圖案204a彼此電性絕緣，且任二個第 一虛置圖案204b係彼此電性絕緣。每一第一導電圖案204a 皆包括複數個第一電極部204c(即菱形部分）及電性連接這 些第一電極部204c之複數個第一橋接部204d(即菱形部分 之間的矩形部分）。其中，複數個第一導電圖案204a之間 大抵相互平行且縱向延伸，用以定義觸控點之X軸座標。 第一導電圖案204a與第一虛置圖案204b較佳由同一導電 層圖案化而得，在此實施例中，第一導電圖案204a與第一 虛置圖案204b之材質相同。然在其他實施例中，可分次形 0773-A33835TWF P2008030 5 201009667 成第一導電圖案204a與第一虛置圖案2〇4b。在一實施 中，第一導電圖案204a與第一虛置圖案2〇4b之材質彼此 不同。 如第1B圖所示’上導電層2〇8包括複數個第 圖案208a及複數個第二虛置圖案2〇8b，其中第二虛 案208b與第二導電圖案2〇8a彼此電性絕緣，且任二 二虛置圖案208b係彼此電性絕緣。每一第二導電圖案 皆包括複數個第二電極部2〇8c及電性連接這些第二 部208c之複數個第二橋接部2_。纟中複數個第 電圖案2〇8a之間大抵相互平行且橫向延伸，用以定義觸控 點之Y軸座標。第二導電圖案208a及第二虛置圖案‘ 之形成方式可類似於第一導電圖案2〇4a與第一虛置 204b之形成方式。 系 應注意的是，雖然第1A及1B圖中之上、下導電圖案 之延伸方向大抵彼此垂直，然其延伸方向不限定彼此垂 直，端視所需應用情況而可作調整。再者，雖然圖式中之 第-電極部204c與第二電極部職皆為菱形，然亦可視 情況使用其他形狀，如圓形、橢圓形、三角形、矩形、正 方形、或多邊形等。此外，電性連接第一或第二電極部之 橋接部亦不限定為矩形，可視需求採用其他形狀。 在此實施例中，上、下導電層2〇8與204之間隔有絕 緣層，並彼此對應設置，即各層之電極部皆對應至另一層 之相應的虛置圖案。例如，第二電極部2〇8c大抵與其下相 •應的第一虛置圖案204b重疊，且第二虛置圖案208b大抵 與相應的第一電極部204c重疊。 0773-A33835TWF_P2008030 6 201009667 第1C圖顯示之上、下導電層208與204佈局的局部 上視圖。如第1C圖所示，第一電極部204c之形狀與面積 大抵與第二虛置圖案208b相同’而大抵完全被上方之第二 虛置圖案208b覆蓋。第二電極部2〇8c之形狀與面積大抵 與第一虛置圖案204b相同，而大抵完全覆蓋下方之第一虛 置圖案204b。第1D圖顯示第ic圖之觸控面板2〇〇中，沿 著切線cl-c2-c3之剖面圖。請同時參照第1A_1D圖，觸控 面板200包括基底202、下導電層204、絕緣層206、上導 ❹電層208、及保護層210。如第1D圖所示，下導電層2〇4 包括第一導電圖案204a(包含第一電極部2〇4c及第一橋接 部204d)、及第一虛置圖案204b，其中第一虛置圖案2〇扑 係與第一導電圖案204a電性絕緣。上導電層208位於下導 電層204上，且其間隔有絕緣層206。上導電層208包括 第二導電圖案208a(包含第二電極部2〇8c及第二橋接部 208d)、及第二虛置圖案208b，其申第二虛置圖案2〇8b係 與第二導電圖案208a電性絕緣。 參 如第1D圖所不，第一電極部2〇4c之上方設置有第二 虛置圖案208b ’第二虛置圖案208b大抵完全覆蓋第一電 極204c。相似地’第二電極部208c之下方設置有第一虛置 圖案204b ’第二電極部208c大抵完全覆蓋第一虛置圖案 204b。此時’來自觸控面板200外部之光線，例如自基底 202下方垂直入射之光線L1及L2，其光學路徑皆會經過 基底202、下導電層204(對光線L1而言，經過第一虛置圖 案204b ;對光線L2而言，經過第一電極部2〇4c)、絕緣層 206、上導電層208(對光線L1而言，經過第二電極部2〇8c ; "0773-A33835TWF_P2008030 η 201009667 對光線L2而言，經過第二虛置圖案2〇8b)、以及保護層 210。因此，不同光線間係經過相同的介質（皆為一基底、 二導電層、一絕緣層、及一保護層），因而使觸控面板2〇〇 之不同區域之間的光學顯示大抵相同，可改善光學顯示品 f ° 接著，配合第1A-1D圖說明一實施例之觸控面板的形 成方法。首先，提供基底2〇2，例如為透明基底，像是破 璃基底、石英基底、可撓式或不可撓式高分子透明基底等。 接著，於基底202上形成圖案化下導電層2〇4。下導電層 204可例如為透明導電層，如銦錫氧化層（IT〇)或銦鋅氧化 層（ΙΖΟ)。可利用微影及蝕刻製程將透明導電層圖案化（如 第1Α圖所示）。之後，於下導電層2〇4上形成絕緣層2〇6。 絕緣層206之材料可為氧化矽（SiOx)或透明絕緣的高分子 材料，其厚度約為〇.1_2μιη。接著，於絕緣層2〇6上形成圖 案化上導電層208(如第1Β圖所示）。最後，於上導電層2〇8 上形成保護層210便完成本發明實施例之觸控面板2〇〇的 製作。保護層之材料可為氧化矽（SiOx)或透明絕緣的高分 子材料，其厚度約為在其他實施例中，觸控面板 2〇〇可進—步設置於顯示面板上，或者直接整合設置於顯 示面板中亦即基底202係由顯示面板之陣列基板(array substrate)所構成。 凊參照第2A-2B圖，分別顯示根據本發明另一實施例 之觸控面板300上視圖及沿著第2A圖中切線el_e2_e3之 «J面圖。如第2A圖所示，觸控面板3〇〇亦包括.與第lc圖 之顯不面板200相似的元件。觸控面板3〇()與2〇〇之間的 0773-A33835TWF_P2〇〇8〇3〇 = 201009667 差異在於觸控面板300之絕緣層306僅將部分的下導電層 204與上導電層208隔開。如第2B圖所示，上導電層208 之第二虛置圖案208b與對應之下導電層2〇4之第一電極部 204c之間完全或部分不設置絕緣層306而彼此直接接觸。 絕緣層306僅用於將上、下導電層中與感測電容變化有關 之部分隔開，而與電容感測無關之虛置圖案則完全或部分 不隔開。如此’在不影響觸控面板300運作之情形下，第 一電極部204c進一步電性連接至第二虛置圖案2〇8b(可視 ❿ 為第二虛置圖案208b為第一電極部204c之延伸），而具有 較低的電阻’可增進觸控面板300之效能(perf0rmanee)。 相似地’部分或全部的第一虛置圖案204b亦與對應的上導 電層208之第二電極部208c直接接觸。此外，由於下導電 層204與上導電層208之間部分不設置絕緣層3〇6，可增 加觸控面板300的透光性。 如第2B圖所示，來自觸控面板300外之光線L3與 L4仍可通過大抵相似之介質，因而觸控面板3〇〇亦具較佳 • 之光學顯示品質。 雖然第1圖與第2圖所示實施例中，虛置圖案與電極 之間的形狀與面積相同，且位於彼此之正上方或正下方， 然虛置圖案亦可僅“大抵”與電極重疊。201009667 VI. Description of the Invention: [Technical Field] The present invention relates to a touch panel, and more particularly to a touch panel having a dummy pattern. [Previous Technology] A capacitive touch panel is one of the commonly used touch panels, which performs input of a command through a change in capacitance generated when a conductor touches the panel, and has better sensitivity without applying pressure (touch sensitivity) ) and structural stability. However, the capacitive touch panel has different reflectances of light due to the difference in height between the touch electrodes, resulting in poor optical display quality and inconvenience in use. Moreover, the width between the sensing electrodes is too large, which also affects the display quality of the capacitive touch panel. Therefore, there is a need in the industry for a touch panel having good optical display quality. According to the present invention, a touch panel includes a conductive layer on a lower surface of a substrate, and has a plurality of first conductive patterns including a plurality of first electrode portions and a plurality of first dummy patterns, a dummy pattern is insulated from the first conductive pattern; an insulating layer on the lower conductive layer; and a conductive layer on the insulating layer, having a plurality of second conductive patterns including a plurality of second electrode portions, respectively A dummy pattern overlaps and a plurality of second dummy patterns, the second dummy patterns are insulated from the second conductive patterns and overlap with the first electrode portions, respectively. According to the present invention, there is further provided an image display system comprising a display device 0773-A33835TWF P2008030 4 201009667, wherein the display device comprises the above touch panel. The above and other objects, features and advantages of the present invention will become more <RTIgt; Forming a floating Dummy Pattern in the touch panel, adjusting the position, φ size, and shape of the dummy pattern to adjust the light path, thereby enhancing the optical display of the touch panel quality. The touch panel according to the present invention includes a lower conductive layer, an upper conductive layer, and an insulating layer sandwiched between the upper and lower conductive layers. The first and second panels show the layout of the lower conductive layer 204 and the upper conductive layer 208 of the touch panel according to the present invention, respectively. As shown in FIG. 1A, the lower conductive layer 204 includes a plurality of first conductive patterns 204a and a plurality of first dummy patterns 204b, wherein the first dummy patterns 204b and the first conductive patterns 204a are electrically insulated from each other, and Any two first dummy patterns 204b are electrically insulated from each other. Each of the first conductive patterns 204a includes a plurality of first electrode portions 204c (ie, a diamond portion) and a plurality of first bridge portions 204d (ie, rectangular portions between the diamond portions) electrically connected to the first electrode portions 204c. The plurality of first conductive patterns 204a are substantially parallel to each other and extend longitudinally to define an X-axis coordinate of the touch point. The first conductive pattern 204a and the first dummy pattern 204b are preferably patterned by the same conductive layer. In this embodiment, the first conductive pattern 204a and the first dummy pattern 204b are made of the same material. In other embodiments, the first conductive pattern 204a and the first dummy pattern 2〇4b may be divided into 0773-A33835TWF P2008030 5 201009667. In one implementation, the materials of the first conductive pattern 204a and the first dummy pattern 2〇4b are different from each other. As shown in FIG. 1B, the upper conductive layer 2〇8 includes a plurality of first patterns 208a and a plurality of second dummy patterns 2〇8b, wherein the second dummy patterns 208b and the second conductive patterns 2〇8a are electrically insulated from each other. And any two or two dummy patterns 208b are electrically insulated from each other. Each of the second conductive patterns includes a plurality of second electrode portions 2〇8c and a plurality of second bridge portions 2_ electrically connected to the second portions 208c. The plurality of electric patterns 2〇8a in the middle of the crucible are substantially parallel to each other and extend laterally to define the Y-axis coordinates of the touch point. The manner in which the second conductive pattern 208a and the second dummy pattern ‘ are formed may be similar to the manner in which the first conductive patterns 2〇4a and the first dummy 204b are formed. It should be noted that although the directions of extension of the upper and lower conductive patterns in Figures 1A and 1B are substantially perpendicular to each other, the direction of extension is not limited to be perpendicular to each other, and can be adjusted depending on the desired application. Further, although the first electrode portion 204c and the second electrode portion in the drawing are all diamond-shaped, other shapes such as a circle, an ellipse, a triangle, a rectangle, a square, or a polygon may be used as appropriate. Further, the bridge portion electrically connected to the first or second electrode portion is not limited to a rectangular shape, and other shapes may be employed as needed. In this embodiment, the upper and lower conductive layers 2, 8 and 204 are spaced apart from each other by an insulating layer and are disposed corresponding to each other, i.e., the electrode portions of the respective layers correspond to corresponding dummy patterns of the other layer. For example, the second electrode portion 2〇8c overlaps the first dummy pattern 204b corresponding to the lower phase thereof, and the second dummy pattern 208b largely overlaps with the corresponding first electrode portion 204c. 0773-A33835TWF_P2008030 6 201009667 Figure 1C shows a partial top view of the layout of the upper and lower conductive layers 208 and 204. As shown in Fig. 1C, the shape and area of the first electrode portion 204c are substantially the same as those of the second dummy pattern 208b, and are substantially completely covered by the upper second dummy pattern 208b. The shape and area of the second electrode portion 2〇8c are substantially the same as those of the first dummy pattern 204b, and substantially completely cover the first dummy pattern 204b below. Fig. 1D is a cross-sectional view along the tangential line cl-c2-c3 in the touch panel 2A of the ic diagram. Referring to FIG. 1A_1D, the touch panel 200 includes a substrate 202, a lower conductive layer 204, an insulating layer 206, an upper conductive layer 208, and a protective layer 210. As shown in FIG. 1D, the lower conductive layer 2〇4 includes a first conductive pattern 204a (including the first electrode portion 2〇4c and the first bridge portion 204d), and a first dummy pattern 204b, wherein the first dummy pattern The 〇 系 is electrically insulated from the first conductive pattern 204a. The upper conductive layer 208 is on the lower conductive layer 204 and is separated by an insulating layer 206. The upper conductive layer 208 includes a second conductive pattern 208a (including the second electrode portion 2〇8c and the second bridge portion 208d), and a second dummy pattern 208b, wherein the second dummy pattern 2〇8b is connected to the second conductive layer Pattern 208a is electrically insulated. As shown in Fig. 1D, a second dummy pattern 208b' is disposed above the first electrode portion 2A4c. The second dummy pattern 208b substantially covers the first electrode 204c. Similarly, the first dummy pattern 204b' is disposed under the second electrode portion 208c. The second electrode portion 208c substantially completely covers the first dummy pattern 204b. At this time, the light from the outside of the touch panel 200, for example, the light rays L1 and L2 incident perpendicularly from under the substrate 202, the optical path passes through the substrate 202 and the lower conductive layer 204 (for the light L1, after the first dummy Pattern 204b; for the light beam L2, passing through the first electrode portion 2〇4c), the insulating layer 206, and the upper conductive layer 208 (for the light L1, passing through the second electrode portion 2〇8c; "0773-A33835TWF_P2008030 η 201009667 For the light ray L2, the second dummy pattern 2 〇 8b) and the protective layer 210 are passed. Therefore, the different light passes through the same medium (all of which is a substrate, two conductive layers, an insulating layer, and a protective layer), so that the optical display between different regions of the touch panel 2 is substantially the same. Improvement of Optical Display Product f ° Next, a method of forming a touch panel according to an embodiment will be described with reference to FIGS. 1A-1D. First, a substrate 2 2 is provided, such as a transparent substrate such as a glass substrate, a quartz substrate, a flexible or inflexible polymer transparent substrate, and the like. Next, a patterned lower conductive layer 2〇4 is formed on the substrate 202. The lower conductive layer 204 may be, for example, a transparent conductive layer such as an indium tin oxide layer (IT〇) or an indium zinc oxide layer (ΙΖΟ). The transparent conductive layer can be patterned using a lithography and etching process (as shown in Figure 1). Thereafter, an insulating layer 2〇6 is formed on the lower conductive layer 2〇4. The material of the insulating layer 206 may be yttrium oxide (SiOx) or a transparent insulating polymer material having a thickness of about 0.11 μm. Next, a patterned upper conductive layer 208 is formed on the insulating layer 2〇6 (as shown in Fig. 1). Finally, the protective layer 210 is formed on the upper conductive layer 2〇8 to complete the fabrication of the touch panel 2A of the embodiment of the present invention. The material of the protective layer may be yttrium oxide (SiOx) or a transparent insulating polymer material, and the thickness thereof is about the same. In other embodiments, the touch panel 2 can be further disposed on the display panel, or directly integrated on the display panel. The substrate 202 in the display panel is composed of an array substrate of the display panel. Referring to Figures 2A-2B, a top view of the touch panel 300 and a "J-side view along the tangent line el_e2_e3 in Fig. 2A are shown, respectively, according to another embodiment of the present invention. As shown in Fig. 2A, the touch panel 3A also includes elements similar to the display panel 200 of the lcth diagram. The difference between the touch panel 3〇() and 2〇〇 is 0773-A33835TWF_P2〇〇8〇3〇=201009667, in which the insulating layer 306 of the touch panel 300 separates only part of the lower conductive layer 204 from the upper conductive layer 208. . As shown in Fig. 2B, the second dummy pattern 208b of the upper conductive layer 208 and the first electrode portion 204c of the corresponding lower conductive layer 2?4 are completely or partially not provided with the insulating layer 306 to be in direct contact with each other. The insulating layer 306 is only used to separate portions of the upper and lower conductive layers that are associated with changes in sense capacitance, while dummy patterns that are independent of capacitive sensing are completely or partially unseparated. Thus, the first electrode portion 204c is further electrically connected to the second dummy pattern 2〇8b without affecting the operation of the touch panel 300 (it can be seen that the second dummy pattern 208b is an extension of the first electrode portion 204c). ), and having a lower resistance' can enhance the performance of the touch panel 300 (perf0rmanee). Similarly, some or all of the first dummy patterns 204b are also in direct contact with the second electrode portions 208c of the corresponding upper conductive layer 208. In addition, since the insulating layer 3〇6 is not provided between the lower conductive layer 204 and the upper conductive layer 208, the light transmittance of the touch panel 300 can be increased. As shown in FIG. 2B, the light beams L3 and L4 from the outside of the touch panel 300 can still pass through similar media, and thus the touch panel 3 also has better optical display quality. In the embodiment shown in FIG. 1 and FIG. 2, the shape and area between the dummy pattern and the electrode are the same, and are located directly above or below each other, and the dummy pattern may only overlap with the electrode. .
第3A圖顯示根據本發明另一實施例中，具有交錯堆 疊層之觸控面板400的上視圖，其虛置圖案與電極之間係 為交錯堆疊層（staggered stack layer)。交錯堆疊的虛置圖案 與電極可在不違反製程法則與影響觸控靈敏度的情形下， 在視覺上使電極之間的橫向距離縮小。為方便辨識，第3A 0773-A33835TWF P2008030 9 201009667 圖中未繪出橋接部。 第3B圖顯示第3A圖之觸控面板400中，沿切線gl-g2 之剖面圖。受限於製程法則，下導電層中第一電極部4〇4c 與第一虛置圖案404b之邊界間具有最短橫向距離dl。同 樣，上導電層中第二電極部408c與第二虛置圖案408b之 邊界間亦具有一大抵相等之最短橫向距離dl。為避免橫向 間距dl過大而影響觸控面板的顯示品質，於圖案化下導電 層與上導電層時’調整其圖案而使具有如第3B圖所示之交 錯堆疊結構。如第3A圖與第3B圖所示，其中第二虛置圖 案408b之邊界超出第一電極部4〇4c之邊界，且第一虛置 圖案404b之邊界超出第二電極部4〇8c之邊界。如此，第 一虛置圖案404b與第二虛置圖案408b間之橫向距離d2可 小於dl。在其他實施例中，利用第一電極部404c之邊界 超出第二虛置圖案408b之邊界，且第二電極部408c之邊 界超出第一虛置圖案404b之邊界的交錯堆疊結構，亦可於 大抵不影響觸控面板之運作下，在視覺上使觸控面板中未 被上導電層或者下導電層覆蓋之區域縮小。 第4A圖顯示另一實施例之觸控面板500之上視圖。 第4B圖顯示第4A圖中沿切線hl-h2之剖面圖。在第4圖 所示之觸控面板500中，至少一第一虛置圖案504b包括複 數個第一虛置次級圖案504b’，且至少一第二虛置圖案508b 包括複數個第二虛置次級圖案508b’。虛置次級圖案較佳為 週期性排列，且彼此間具有相同的橫向距離d3。透過將第 一虛置圖案504b·與第二虛置圖案508b分別分裂為數個較 小之第一虛置次級圖案504b，與第二虚置次級圖案5〇8b，， 0773-A33835TWF_P2008030 10 201009667 可使觸控面板50〇之顯示品質更均勻。如第4B圖所示，可 採用如第3 ®所迷之交錯堆疊方式，使第―、第二電極部 504c與508c間的最短橫向距離犯小於dl，其中dl之定 義同第3圖所述。在一實施例中，第一虚置次級圖案5〇4b， 及/或第二虛置次級圖案508b，之間的橫向距離d3大抵等於 第一電極504c與第二電極5〇8c間的最短橫向距離汜。 第5圖顯示根據本發明一實施例之影像顯示系統方塊 不意圖’其可實施於顯示裝置600或電子裝置800，例如 行動電話數位相機、個人數位助理（personal digital assistant, PDA) '筆記型電腦、桌上型電腦、電視、車用 顯示器、或攜帶型攜帶式數位影音光碟播放器。在此實施 例t ’ m 6〇〇包含上述實施例之觸控聽，例如觸 控面板200。此夕卜’在其他實施例中，顯示裝置働可為 電子裝置800之-部分，如第5圖所示，電子裝置刪包 括顯示裝置600及輪入單元700。其中，輸入單元係 耦接至顯不裝置6GQ，用以提供輸人信號（例如，影像信 號）至顯示裝置6〇〇以產生影像。 根據本U之觸控面板具有許多優點。例如可改善 Ϊ遙I:電層？之高度差所造成的色差問題、及提升電極 分裂為數個=、之ί過使用交錯堆疊結構及/或將虛置圖案 热 乂’、虛置次級圖案，可提升光學顯示品質。 雖然本發明已以數個較佳實施例揭露如上’缺其i 用以限定本發明’任何所屬技術領域中具有通常知識者， 在不脫離本發明之精神和範圍内，當可作>音 飾，因此本發明之保護範圍當視後附之申請專利範圍;斤= 0773-A33835TWF Ρ200Β030 11 201009667 定者為準。 【圖式簡單說明】 第1A〜1D圖顯示根據本發明實施例之觸控面板的下 導電層與上導電層之佈局、上視圖、及剖面圖。 第2A〜2B圖顯示根據本發明另一實施例之觸控面板 之上視圖以及剖面圖。 第3A〜3B圖顯示根據本發明實施例之具有交錯堆疊 層之觸控面板的上視圖及剖面圖。 第4A〜4B圖顯示根據本發明實施例之觸控面板之上 視圖及剖面圖。 第5圖顯示根據本發明實施例之影像顯示系統之示意 圖。 【主要元件符號說明】 200、300、400、500〜觸控面板； 202〜基底； 204〜下導電層； 204a〜第一導電圖案； 2〇4b、404b、504b~第一虛置圖案； 2〇4c、404c、504c~第一電極部； 204d〜第一橋接部； 206、306〜絕緣層； 208〜上導電層； 208a〜第二導電圖案； 0773-A33835TWF P2008030 12 201009667 208b、408b、508b〜第二虛置圖案； 208c、408c、508c~第二電極部； 208d〜第二橋接部； 210〜保護層； dl、d2、d3〜横向距離； 504b’〜第一虛置次級圖案； 508b’〜第二虛置次級圖案； 600〜顯示裝置； ❹ 700〜輸入裝置； 800〜電子裝置； LI、L2、L3、L4-光線。 0773-A33835TWF P2008030 13Figure 3A shows a top view of a touch panel 400 having an interleaved stack in accordance with another embodiment of the present invention with a staggered stack layer between the dummy pattern and the electrodes. The staggered stack of dummy patterns and electrodes can visually reduce the lateral distance between the electrodes without violating the process rules and affecting touch sensitivity. For the convenience of identification, the 3A 0773-A33835TWF P2008030 9 201009667 bridge is not shown. Fig. 3B is a cross-sectional view along the tangential line gl-g2 of the touch panel 400 of Fig. 3A. Limited by the process rule, the shortest lateral distance d1 between the boundary of the first electrode portion 4〇4c and the first dummy pattern 404b in the lower conductive layer. Similarly, the boundary between the second electrode portion 408c and the second dummy pattern 408b in the upper conductive layer also has a shortest lateral distance d1 which is equal to each other. In order to prevent the lateral spacing dl from being too large and affecting the display quality of the touch panel, the pattern is adjusted when the conductive layer and the upper conductive layer are patterned to have an interleaved stacked structure as shown in Fig. 3B. As shown in FIGS. 3A and 3B, wherein the boundary of the second dummy pattern 408b exceeds the boundary of the first electrode portion 4〇4c, and the boundary of the first dummy pattern 404b exceeds the boundary of the second electrode portion 4〇8c. . Thus, the lateral distance d2 between the first dummy pattern 404b and the second dummy pattern 408b can be less than dl. In other embodiments, the staggered stack structure in which the boundary of the first electrode portion 404c exceeds the boundary of the second dummy pattern 408b and the boundary of the second electrode portion 408c exceeds the boundary of the first dummy pattern 404b may be substantially Without affecting the operation of the touch panel, the area of the touch panel that is not covered by the upper conductive layer or the lower conductive layer is visually reduced. FIG. 4A shows a top view of the touch panel 500 of another embodiment. Fig. 4B is a cross-sectional view taken along line hl-h2 in Fig. 4A. In the touch panel 500 shown in FIG. 4, at least one first dummy pattern 504b includes a plurality of first dummy secondary patterns 504b', and at least one second dummy pattern 508b includes a plurality of second dummy patterns. Secondary pattern 508b'. The dummy secondary patterns are preferably periodically arranged and have the same lateral distance d3 from each other. By splitting the first dummy pattern 504b· and the second dummy pattern 508b into a plurality of smaller first dummy secondary patterns 504b, and the second dummy secondary patterns 5〇8b, 0773-A33835TWF_P2008030 10 201009667 The display quality of the touch panel 50 can be made more uniform. As shown in FIG. 4B, the staggered stacking method as disclosed in FIG. 3 can be employed, so that the shortest lateral distance between the first and second electrode portions 504c and 508c is less than dl, wherein the definition of dl is the same as that described in FIG. . In an embodiment, the lateral distance d3 between the first dummy secondary pattern 5〇4b, and/or the second dummy secondary pattern 508b is substantially equal to between the first electrode 504c and the second electrode 5〇8c. The shortest lateral distance 汜. FIG. 5 shows that the image display system block according to an embodiment of the present invention is not intended to be implemented on the display device 600 or the electronic device 800, such as a mobile phone digital camera, a personal digital assistant (PDA) notebook computer. , desktop computer, TV, car display, or portable portable digital audio and video disc player. In this embodiment, t'm 6〇〇 includes the touch control of the above embodiment, such as the touch panel 200. Further, in other embodiments, the display device 働 may be a portion of the electronic device 800. As shown in FIG. 5, the electronic device includes a display device 600 and a wheeling unit 700. The input unit is coupled to the display device 6GQ for providing an input signal (eg, an image signal) to the display device 6 to generate an image. The touch panel according to the present U has many advantages. For example, can I improve the Happy I: electrical layer? The chromatic aberration caused by the height difference and the splitting of the lift electrodes are several, and the optical display quality can be improved by using a staggered stacked structure and/or by arranging the dummy patterns to be hot and erected. The present invention has been described in terms of several preferred embodiments, and is not intended to limit the scope of the present invention. Therefore, the scope of protection of the present invention is subject to the scope of the patent application; kg = 0773-A33835TWF Ρ200Β030 11 201009667. BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1A to 1D are views showing a layout, a top view, and a cross-sectional view of a lower conductive layer and an upper conductive layer of a touch panel according to an embodiment of the present invention. 2A to 2B are a top view and a cross-sectional view showing a touch panel according to another embodiment of the present invention. 3A-3B are top and cross-sectional views showing a touch panel having staggered stacked layers in accordance with an embodiment of the present invention. 4A to 4B are a top view and a cross-sectional view of a touch panel according to an embodiment of the present invention. Fig. 5 is a view showing an image display system according to an embodiment of the present invention. [Description of main component symbols] 200, 300, 400, 500 to touch panel; 202 to substrate; 204 to lower conductive layer; 204a to first conductive pattern; 2 to 4b, 404b, 504b to first dummy pattern; 〇4c, 404c, 504c~first electrode portion; 204d~first bridge portion; 206, 306~insulation layer; 208~upper conductive layer; 208a~second conductive pattern; 0773-A33835TWF P2008030 12 201009667 208b, 408b, 508b ~ second dummy pattern; 208c, 408c, 508c~ second electrode portion; 208d~ second bridge portion; 210~ protective layer; dl, d2, d3~ lateral distance; 504b'~ first dummy secondary pattern; 508b'~second dummy secondary pattern; 600~ display device; ❹700~ input device; 800~ electronic device; LI, L2, L3, L4-ray. 0773-A33835TWF P2008030 13