五、新型說明： 【新型所屬之技術領域】 本創作係關於一種光穿透觸控面板，特別係關於一種 具有電容電路之觸控面板。 【先前技術】 觸控面板已被廣泛應用於家庭用品、通訊裝置及電子 資訊裝置等領域。通常觸控面板之應用係作為個人數位助 理（PDA)、電子產品及遊戲機等輸入介面。目前觸控面板 和顯示幕之整合趨勢可允許使用者以手指或接觸筆選取面 板上顯示之代表圖像（icon)，如此可使個人數位助理電 子產品及遊戲機執行喜好之功能。此種觸控面板亦應用於 公共資訊查詢系統，可以提供公眾有效率之操作系統。 傳統觸控面板包含一透明基板’該透明基板具有複數 個感測墊所構成之一表面，該等分佈之感測墊係用於感測 使用者以手指或接觸筆觸摸所造成之訊號，以進行輸入或 控制。該感測墊係由透明導電薄膜所構成，例如：氧化銦 錫（ITO)，使用者可以觸摸顯示於顯示幕上特定位置之對 應透明導電薄膜’即可有效操作該裝置。 為能有效偵測使用者以手指或接觸筆觸摸面板之正確 位置’有很多種觸控面板之技術被發展出來。如圖1A所示 ’ 一種光穿透觸控面板10包含一透明基板丨丨、複數個橋接 線12、一絕緣層13及一透明導電層14。該透明導電層μ覆 蓋該透明基板π之上表面’並包含複數個第一電極141、 複數個第一電極142及複數個連接線143。該複數個第一電 I41042.doc M378432 極141及該複數個第二電極142係交錯佈置，且各第一電極 141被四個第二電極142圍繞。各該複數個連接線143分別 連接相鄰第二電極142 ^該絕緣層13更包含複數個絕緣區 域131 ’該複數個絕緣區域13ι分別覆蓋該複數個連接線 143°該複數個橋接線12分別設於該複數個絕緣區域131上 ，及分別連接相鄰第一電極141。另有複數個金屬導線15 係設於透明導電層14之周側，藉由該複數個金屬導線15使 得第一電極141及第二電極142之各橫向及縱向連接得以將 感測之訊^^傳送至外部。 圖1B係沿圖1A中線^之剖面圖。如圖所示，橋接線 12係暴露於透明基板u之上方，因此容易刮傷或氧化受損 。如圖1C所不，為改善此一缺點，會將一透明保護層15覆 蓋於透明基板11之上方，藉此保護橋接線12不受外力或環 i兄之影響。然而，整層透明保護層15仍會吸收部分光線， 而造成觸控面板10下方之顯示幕看起來較黯淡。 因此，市％上需要一種觸控面板能克服上述習知觸控 面板所具有之缺點，並仍能維持顯示幕之亮度。 【新型内容】 本創作係提供-種高光穿透度之電容式觸控面板，其 係藉由局部之保護層覆蓋金屬導線，不但能保護金屬導線 :被到傷或*產生氧化’而且還能特下方之顯示幕之高 一透明基板、一 一保護層。該透 本創作揭示一種電容式觸控面板包含 透明導電層、—絕緣層、複數個金屬線及 141042.doc 明導電層覆蓋該透明基板之一表面，並包含複數個第一電 極、複數個第二電極及複數個連接線。該複數個第一電極 及該複數個第二電極係交錯佈置，及該複數個連接線分別 連接相鄰第二電極。該絕緣層更包含複數個絕緣區域，各 該絕緣區域覆蓋一該第一電極。該複數個金屬線分別設於 該複數個絕緣區域上，及分別連接相鄰該第一電極。該保 護層更包含複數個保護區域，各該保護區域覆蓋一該金屬 線。 【實施方式】 圖2A係本發明一實施例之觸控面板之上視圖。如圖 2A所不’ 一種光穿透觸控面板2〇包含一透明基板21、複數 個金屬線22、一絕緣層23、一透明導電層24及一保護層26 。該透明導電層24覆蓋該透明基板21之上表面，並包含複 數個第一電極241、複數個第二電極242及複數個連接線 243。該複數個第一電極241及該複數個第二電極242係交 錯佈置，且各第一電極241被四個第二電極242圍繞。各該 複數個連接線243分別連接相鄰第二電極242。該絕緣層23 更包含複數個絕緣區域23 1，該複數個絕緣區域23 1分別覆 蓋該複數個連接線243。該複數個金屬線22分別設於該複 數個絕緣區域23 1上，及分別連接相鄰第一電極24 i。另有 複數個金屬導線25係設於透明導電層24之周側，藉由該複 數個金屬導線25使得第一電極241及第二電極242之各橫向 及縱向連接得以將感測之訊號傳送至外部。該保護層26更 包含複數個保護區域261，各該保護區域261覆蓋一金屬線 141042.doc M378432 22。該保護層26不但能保護金屬線22不被刮傷或不產生氧 化，而且還能維持下方之顯示幕（圖未示）之高亮度，甚 至可避免金屬線22之反光而達到防眩效果。 該透明基板21之材料係玻璃或透明高分子板材，例如 :聚碳酸酯（PC)及聚氯乙烯（PVC)。該透明導電層24及金 屬線22之材料係氧化銦錫（IT〇)、氧化鋁鋅（AZ〇)或氧化銦 鋅（IZO)。該金屬線22之材料係鉻（Cr)或鉬/鋁/鉬 (Mo/Al/Mo)之複合金屬層。該絕緣層23及保護層26之材料 係一透明高分子材料，例如：一光阻材料。 圖2B係沿圖2A中線2-2之剖面圖。該保護區域261將不 透光之金屬線22覆蓋，但其他透光的部分則未覆蓋。因此 ’保護層26不會吸收透光的部分應該穿透過去之光線，也 就是能維持下方之顯示幕之高亮度。 此外’由於連接線243之截面積較窄，且其透明氧化 金屬材料之電阻值較大，因此可以於表面再疊設一金屬輔 助線（圖未示），例如：鉻（Cr)、金、銀或鉬/鋁/鉬 (Mo/Al/Mo)之複合金屬層，故此連接線243藉由金屬辅助 線傳輸一部份之電流訊號。 本創作之技術内容及技術特點已揭示如上，然而熟悉 本項技術之人士仍可能基於本創作之教示及揭示而作種種 不背離本創作精神之替換及修飾。因此，本創作之彳呆護範 圍應不限於實施例所揭示者’而應包括各種不背離本創作 之替換及修飾，並為以下之申請專利範園所涵蓋。 【圖式簡單說明】 141042.doc 圖1A係一習知觸控面板之示意圖； 圖1Β係沿圖1 a中線1 _ 1之剖面圖； 圖1C係另一習知觸控面板沿圖ία中線1_丨之剖面圖 圖2 A係本發明一實施例之觸控面板之上視圖；以及 圖2B係沿圖2A中線2-2之剖面圖。 【主要元件符號說明】 10 觸控面板 11 透明基板 12 橋接線 13 絕緣層 131 絕緣區域 14 透明導電層 141 第一電極 142 第二電極 143 連接線 15 金屬導線 20 觸控面板 21 透明基板 22 金屬線 23 絕緣層 24 透明導電層 241 第一電極 242 第二電極 243 連接線 25 金屬導線 26 保護層 261 保護區域 141042.docV. New Description: [New Technology Field] This creation is about a light-transmissive touch panel, especially for a touch panel with a capacitive circuit. [Prior Art] Touch panels have been widely used in household appliances, communication devices, and electronic information devices. Typically, touch panel applications are used as input interfaces for personal digital assistants (PDAs), electronics, and gaming consoles. At present, the integration trend of the touch panel and the display screen allows the user to select a representative icon (icon) displayed on the panel with a finger or a touch pen, so that the personal digital assistant electronic product and the game machine can perform the favorite function. Such touch panels are also used in public information inquiry systems to provide a publicly efficient operating system. The conventional touch panel includes a transparent substrate having a surface formed by a plurality of sensing pads for sensing a signal caused by a user touching with a finger or a touch pen. Make input or control. The sensing pad is composed of a transparent conductive film, such as indium tin oxide (ITO), and the user can operate the device by touching a corresponding transparent conductive film displayed at a specific position on the display screen. In order to effectively detect the correct position of the user touching the panel with a finger or a touch pen, a variety of touch panel technologies have been developed. As shown in FIG. 1A, a light transmissive touch panel 10 includes a transparent substrate, a plurality of bridge wires 12, an insulating layer 13, and a transparent conductive layer 14. The transparent conductive layer 51 covers the upper surface ′ of the transparent substrate π and includes a plurality of first electrodes 141, a plurality of first electrodes 142, and a plurality of connecting lines 143. The plurality of first electrodes I41042.doc M378432 poles 141 and the plurality of second electrodes 142 are staggered, and each of the first electrodes 141 is surrounded by four second electrodes 142. Each of the plurality of connecting lines 143 is respectively connected to the adjacent second electrode 142. The insulating layer 13 further includes a plurality of insulating regions 131'. The plurality of insulating regions 13ι respectively cover the plurality of connecting lines 143. The plurality of bridge wires 12 respectively The plurality of insulating regions 131 are disposed on the plurality of insulating regions 131, and the adjacent first electrodes 141 are respectively connected. A plurality of metal wires 15 are disposed on the peripheral side of the transparent conductive layer 14. The plurality of metal wires 15 allow the lateral and vertical connections of the first electrode 141 and the second electrode 142 to be sensed. Transfer to the outside. Figure 1B is a cross-sectional view taken along line line 1 of Figure 1A. As shown, the bridge wire 12 is exposed above the transparent substrate u, so that it is easily scratched or oxidized. As shown in Fig. 1C, in order to improve this disadvantage, a transparent protective layer 15 is overlaid on the transparent substrate 11, thereby protecting the bridge 12 from external forces or ringing. However, the entire transparent protective layer 15 still absorbs some of the light, and the display screen under the touch panel 10 looks bleak. Therefore, a touch panel is required in the market to overcome the disadvantages of the above conventional touch panel and still maintain the brightness of the display screen. [New Content] This creation provides a high-light-transparent capacitive touch panel that covers a metal wire with a partial protective layer that not only protects the metal wire: it is damaged or *oxidized' The lower display screen is a transparent substrate and a protective layer. The present invention discloses a capacitive touch panel comprising a transparent conductive layer, an insulating layer, a plurality of metal lines, and a 141042.doc conductive layer covering a surface of the transparent substrate, and comprising a plurality of first electrodes, a plurality of Two electrodes and a plurality of connecting lines. The plurality of first electrodes and the plurality of second electrodes are staggered, and the plurality of connecting lines are respectively connected to adjacent second electrodes. The insulating layer further includes a plurality of insulating regions, each of the insulating regions covering a first electrode. The plurality of metal lines are respectively disposed on the plurality of insulating regions, and are respectively connected adjacent to the first electrodes. The protective layer further includes a plurality of protection areas, each of which covers a metal line. Embodiment 2 FIG. 2A is a top view of a touch panel according to an embodiment of the present invention. As shown in FIG. 2A, a light transmissive touch panel 2 includes a transparent substrate 21, a plurality of metal lines 22, an insulating layer 23, a transparent conductive layer 24, and a protective layer 26. The transparent conductive layer 24 covers the upper surface of the transparent substrate 21 and includes a plurality of first electrodes 241, a plurality of second electrodes 242, and a plurality of connecting lines 243. The plurality of first electrodes 241 and the plurality of second electrodes 242 are arranged in an erroneous arrangement, and each of the first electrodes 241 is surrounded by the four second electrodes 242. Each of the plurality of connecting lines 243 is connected to the adjacent second electrode 242. The insulating layer 23 further includes a plurality of insulating regions 23 1 covering the plurality of connecting lines 243, respectively. The plurality of metal wires 22 are respectively disposed on the plurality of insulating regions 23 1 and are respectively connected to the adjacent first electrodes 24 i. A plurality of metal wires 25 are disposed on the peripheral side of the transparent conductive layer 24, and the plurality of metal wires 25 enable the lateral and vertical connections of the first electrode 241 and the second electrode 242 to transmit the sensed signals to external. The protective layer 26 further includes a plurality of protective regions 261, each of which covers a metal line 141042.doc M378432 22. The protective layer 26 not only protects the metal wire 22 from being scratched or oxidized, but also maintains the high brightness of the lower display screen (not shown), and even avoids the reflection of the metal wire 22 to achieve an anti-glare effect. The material of the transparent substrate 21 is glass or a transparent polymer sheet such as polycarbonate (PC) and polyvinyl chloride (PVC). The material of the transparent conductive layer 24 and the metal wire 22 is indium tin oxide (IT〇), aluminum zinc oxide (AZ〇) or indium zinc oxide (IZO). The material of the metal wire 22 is a composite metal layer of chromium (Cr) or molybdenum/aluminum/molybdenum (Mo/Al/Mo). The material of the insulating layer 23 and the protective layer 26 is a transparent polymer material such as a photoresist material. Figure 2B is a cross-sectional view taken along line 2-2 of Figure 2A. The protected area 261 covers the opaque metal line 22, but the other light transmissive portions are not covered. Therefore, the portion of the protective layer 26 that does not absorb light should penetrate the light of the past, that is, it can maintain the high brightness of the display screen below. In addition, since the cross-sectional area of the connecting line 243 is narrow and the resistance value of the transparent oxidized metal material is large, a metal auxiliary line (not shown) may be stacked on the surface, for example, chromium (Cr), gold, A composite metal layer of silver or molybdenum/aluminum/molybdenum (Mo/Al/Mo), so that the connecting line 243 transmits a part of the current signal through the metal auxiliary line. The technical content and technical features of the present invention have been disclosed above, but those skilled in the art may still make various substitutions and modifications without departing from the spirit of the present invention based on the teachings and disclosures of the present invention. Therefore, the scope of this creation should not be limited to those disclosed in the examples, and should include various substitutions and modifications that do not depart from the creation, and are covered by the following patent applications. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a schematic view of a conventional touch panel; FIG. 1 is a cross-sectional view taken along line 1 _ 1 of FIG. 1 a; FIG. 1C is another conventional touch panel along the figure ία 2A is a top view of a touch panel according to an embodiment of the present invention; and FIG. 2B is a cross-sectional view taken along line 2-2 of FIG. 2A. [Main component symbol description] 10 Touch panel 11 Transparent substrate 12 Bridge wiring 13 Insulation layer 131 Insulation region 14 Transparent conductive layer 141 First electrode 142 Second electrode 143 Connection line 15 Metal wire 20 Touch panel 21 Transparent substrate 22 Metal wire 23 Insulation layer 24 Transparent conductive layer 241 First electrode 242 Second electrode 243 Connection line 25 Metal wire 26 Protective layer 261 Protection area 141042.doc