201250562 之技術領域】 六、發明說明： 【發日月所屬 發明領域 t發明係有關於—種以互靜電容方式感應在觸控面柄The technical field of 201250562] Sixth, the invention description: [Day and the moon belong to the field of invention t invention is related to - kind of mutual capacitive sensing in the touch surface handle
中手才曰專細作物體所接觸夕而此L 控面板 所接觸之面板上之位置的互靜電容式觸 【先前軒】 發明背景 靜電容式觸控面板主要有表面式與投影式2種，藉剩定 於觸控面板之表面為手指等操作物體接觸之際產生之靜電 容的變化’界定偵測點。表面式僅可伯測m，相對於此， 由於投影式可利用排列成於X方向與γ方向交叉之電極測 定靜電容之變化，界定偵測點之座標，故在許多電子裝置 採用投影式。 又’投影式中有靜電容之變化之檢測方式不同的固有 靜電容（Self capacitance)式與互靜電容(Mutual capacitance) 式。藉測定X電極與Y電極之互靜電容，而於檢測出互靜電 容變化時，直接界定該偵測點之互靜電容式較固有靜電容 式，在多點偵測之應用上優異。因此，採用設想多點偵測 之使用者介面之電子裝置使用互靜電容式（例如參照專利 文獻1)。 在此，關於習知互靜電容式觸控面板之電極構造，顯 示於第11圖之示意圖。如第11圖所示，觸控面板501包含有 沿著X方向相互平行地配置之複數下部電極510、以與各下 201250562 部電極交又（垂直相交）之狀態沿著Y方向相互平行地配置 之複數上部電極520 〇上部電極520與下部電極510藉將透光 性電極材料(例如ΙΤΟ)蚀刻加工而形成，而形成作為相互分 離之大致帶狀的電極。 如第11圖所示，於相互相鄰之下部電極51〇間配置有可 確保諸下部電極510之電絕緣之程度的間隙。上部電極52〇 其帶狀之寬度形成小於下部電極51()。 如第12圖之示意圖所示，下部電極51〇具有作為發送側 之電極的功能，上部電極520具有作為接收側之電極的功 能。在手指等物體502未接觸或未靠近上部電極52〇側、即 觸控面側之狀態下，形成有諸如電力線L從發送側之下部電 極510朝向接收側之上部電極52〇之電場。當手指等物體5〇2 罪近上部電極520至對此電場影響之程度時，電力線]^之一 部份繞入上部電極52〇之周圍，而為手指等物體吸收。結 果，於互靜電容產生變化’可檢測此變化產生之座標作為 偵測點。 先行技術文獻 專利文獻 專利文獻1 .日本專利公開公報2〇1〇_79882號 C發明内容3 發明概要 發明欲解決之課題 然而’在此種互靜電容式觸控面板中，產生從觸控面 板側看見上部電極與下部電極之電極圖形的現象之所謂網 201250562 格狀圖案可見現象。此種網格狀圖案<見現象有在電子穿 置中對透過觸控面板目視辨認之影像造成視覺之影響的情 形，而要求使網格狀圖案可見現象減低。 因而，本發明之目的在於觸決上述問題，在於提供可 減低上部電極及下部電極之電極圖形之網格狀圖案可見現 象的互靜電容式觸控面板。 用以解決課題之手段 為達成上述目的，本發明如以下構成。 根據本發明之第1態樣，提供一種互靜電容觸控面板， 其包含有複數下部電極及複數上部電極，該等複數下部電 極係以透光性電極材料形成大致帶狀，並沿著第丨方向相互 平行地配置者；該等複數上部電極係以透光性電極材料形 成大致帶狀，並沿著與第丨方向交叉之第2方向相互平行地 配置，且配置於比下部電極靠觸控面側者；又，相鄰之諸 上部電極靠近配置至可確保相鄰之上部電極間之電絕緣之 程度，相鄰之諸下部電極靠近配置至可確保相鄰之下部電 極間之電絕緣之程度，在上部電極與下部電極之交又部 份，具有相同之尺寸及形狀之複數開口部於上部電極配置 形成於第1及第2方向，在上部電極全體，各開口部沿著第2 方向以一定間隔配置。 根據本發明之第2態樣，提供一種如第丨態樣所記載之 互靜電容式觸控面板，其中上部電極之寬度大於相鄰之上 部電極間之間隙。 根據本發明之第3態樣，提供一種如第丨態樣或第2態樣 201250562 所記載之互靜電容式觸控面板，其中相鄰之上部電極間之 間隙與相鄰之下部電極間之間隙實質上相同。 根據本發明之第4態樣，提供一種如第1態樣或第2態樣 所記載之互靜電容式觸控面板，其中以相鄰之下部電極間 之間隙為單位尺寸，在交叉部份相鄰之開口部間之電極部 份的寬度為單位尺寸之正整數倍。 根據本發明之第5態樣，提供一種如第1態樣或第2態樣 所記載之互靜電容式觸控面板，其中各開口部之内緣具有 與大致帶狀之上部電極或下部電極之端緣實質上平行之部 份。 根據本發明之第6態樣，提供一種如第1態樣或第2態樣 所記載之互靜電容式觸控面板，其中在上部電極之端緣， 相鄰之開口部間之電極部份沿著第1方向延伸而形成有複 數突起部份。 發明效果 根據本發明，相鄰之諸上部電極靠近配置至可確保相 鄰之上部電極間之電絕緣之程度，相鄰之諸下部電極靠近 配置至可確保相鄰之下部電極間之電絕緣之程度，藉此， 縮小上部電極間及下部電極間之間隙，可使間隙難以明 顯。再者，由於在形成大致帶狀之上部電極與下部電極之 交叉部份，於上部電極形成有複數開口，故相較於未形成 有開口部之交叉部份，可使交叉部份在視覺上不明顯。是 故，在互靜電容式觸控面板中，可減低上部電極及下部電 極之電極圖形之網格圖案可見現象。 6 201250562 圖式簡單說明 本發明之該等態樣與特徵可從與關於附加之圖式之較 佳實施形態相關的以下記述明瞭。 第1圖係相對於本發明實施形態之參考例之觸控面板 之電極圖形的示意圖。 第2圖係顯示第1圖之參考例之觸控面板之電極積層方 向之結構的示意圖。 第3圖係本發明實施形態之觸控面板之電極圖形的示 意圖。 第4圖係顯示第3圖之實施形態之觸控面板之電極積層 方向之結構的示意圖。 第5圖係本發明實施形態之變形例之觸控面板之電極 圖形的示意圖。 第6A圖係參考例之觸控面板之電極圖形的示意圖。 第6B圖係參考例之觸控面板之上部電極之圖形的示意 圖。 第6C圖係參考例之觸控面板之下部電極之圖形的示意 圖。 第7A圖係第1實施例之觸控面板之電極圖形的示意圖。 第7 B圖係第1實施例之觸控面板之上部電極之圖形的 示意圖。 第7C圖係第1實施例之觸控面板之下部電極之圖形的 示意圖。 第7D圖係第1實施例之上部電極之圖形的部份放大圖。 201250562 第7E圖係第1實施例之下部電極之圖形的部份放大圖。 第8A圖係第2實施例之觸控面板之電極圖形的示意圖。 第8 B圖係第2實施例之觸控面板之上部電極之圖形的 示意圖。 第8 C圖係第2實施例之觸控面板之下部電極之圖形的 示意圖。 第8D圖係第2實施例之上部電極之圖形的部份放大圖。 第8E圖係第2實施例之下部電極之圖形的部份放大圖。 第9A圖係第3實施例之觸控面板之電極圖形的示意圖。 第9 B圖係第3實施例之觸控面板之上部電極之圖形的 示意圖。 第9C圖係第3實施例之觸控面板之下部電極之圖形的 示意圖。 第9D圖係第3實施例之上部電極之圖形的部份放大圖。 第9 E圖係第3實施例之下部電極之圖形的部份放大圖。 第10A圖係第4實施例之觸控面板之電極圖形的示意 圖。 第10 B圖係第4實施例之觸控面板之上部電極之圖形的 示意圖。 第10 C圖係第4實施例之觸控面板之下部電極之圖形的 示意圖。 第10D圖係第4實施例之電極圖形之部份放大圖。 第10E圖係第4實施例之變形例之電極圖形的部份放大 201250562 第11圖係習知觸控面板之電極圖形之示意圖。 第12圖係第11圖之習知觸控面板之電極積層方向的示 意截面圖。The contact between the hand and the fine crop is the mutual capacitive contact of the position on the panel touched by the L control panel. [Inventive Background] The capacitive touch panel mainly has two types: surface type and projection type. The change of the electrostatic capacitance generated when the surface of the touch panel is contacted by an operating object such as a finger is defined as a detection point. The surface type can only be measured by m. In contrast, since the projection type can measure the change of the electrostatic capacitance by the electrodes arranged in the X direction and the γ direction, and define the coordinates of the detection point, the projection type is adopted in many electronic devices. Further, in the projection type, there are a self capacitance type and a mutual capacitance type which have different detection methods of changes in electrostatic capacitance. By measuring the mutual electrostatic capacitance between the X electrode and the Y electrode, when the mutual capacitance change is detected, the mutual electrostatic capacitance type of the detection point is directly defined, which is superior to the application of the multi-point detection. Therefore, an electronic device using a user interface that contemplates multi-point detection uses an electrostatic capacitance type (for example, refer to Patent Document 1). Here, the electrode structure of the conventional mutual capacitive touch panel is shown in Fig. 11 . As shown in FIG. 11, the touch panel 501 includes a plurality of lower electrodes 510 which are arranged in parallel with each other in the X direction, and are arranged in parallel with each other in the Y direction in a state of being intersected (vertically intersected) with each of the lower layers of the 201250562 electrodes. The plurality of upper electrodes 520, the upper electrode 520 and the lower electrode 510 are formed by etching a translucent electrode material (for example, germanium) to form electrodes which are substantially strip-shaped apart from each other. As shown in Fig. 11, a gap which can ensure the electrical insulation of the lower electrodes 510 is disposed between the adjacent lower electrodes 51. The width of the upper electrode 52 〇 is formed to be smaller than that of the lower electrode 51 (). As shown in the schematic view of Fig. 12, the lower electrode 51A has a function as an electrode on the transmitting side, and the upper electrode 520 has a function as an electrode on the receiving side. In a state where the object 502 such as a finger is not in contact with or not close to the side of the upper electrode 52, i.e., the touch surface side, an electric field such as the electric power line L from the lower side of the transmitting side to the upper side of the receiving side 52 is formed. When an object such as a finger 5 〇 2 is near the upper electrode 520 to the extent of the influence of the electric field, a part of the electric power line is wound around the upper electrode 52 , and absorbed by an object such as a finger. As a result, a change in mutual capacitance can be detected as a coordinate detected by this change as a detection point. PRIOR ART DOCUMENT PATENT DOCUMENT Patent Document 1 Japanese Patent Laid-Open Publication No. Hei. No. 798-82 C. SUMMARY OF THE INVENTION The object of the invention is to solve the problem. However, in such a mutual capacitive touch panel, a touch panel is produced. The side sees the phenomenon of the electrode pattern of the upper electrode and the lower electrode, which is a so-called mesh 201250562 lattice pattern visible phenomenon. Such a grid pattern < see phenomenon has a visual effect on the image visually recognized through the touch panel in the electron insertion, and it is required to reduce the visible phenomenon of the grid pattern. Accordingly, an object of the present invention is to solve the above problems by providing a mutual capacitive touch panel which can reduce the visible pattern of the grid pattern of the electrode patterns of the upper electrode and the lower electrode. Means for Solving the Problems In order to achieve the above object, the present invention has the following constitution. According to a first aspect of the present invention, a mutual electrostatic capacitance touch panel includes a plurality of lower electrodes and a plurality of upper electrodes, wherein the plurality of lower electrodes are formed in a substantially strip shape by a translucent electrode material, and along the The plurality of upper electrodes are arranged in a substantially strip shape with a translucent electrode material, and are arranged in parallel with each other in a second direction crossing the second direction, and are disposed in contact with the lower electrode. Side control side; further, adjacent upper electrodes are disposed close to each other to ensure electrical insulation between adjacent upper electrodes, and adjacent lower electrodes are disposed close to each other to ensure electrical insulation between adjacent lower electrodes To the extent that the upper electrode and the lower electrode are in contact with each other, the plurality of openings having the same size and shape are formed in the first and second directions in the upper electrode, and the openings are along the second in the entire upper electrode. The directions are configured at regular intervals. According to a second aspect of the present invention, there is provided a mutual capacitance type touch panel according to the first aspect, wherein a width of the upper electrode is larger than a gap between adjacent upper electrodes. According to a third aspect of the present invention, there is provided a mutual capacitive touch panel as described in the second aspect or the second aspect of 201250562, wherein a gap between adjacent upper electrodes and an adjacent lower electrode are provided. The gaps are substantially the same. According to a fourth aspect of the present invention, there is provided a mutual capacitive touch panel according to the first aspect or the second aspect, wherein a gap between adjacent lower electrodes is a unit size and a cross portion The width of the electrode portion between the adjacent openings is a positive integer multiple of the unit size. According to a fifth aspect of the present invention, there is provided a mutual capacitive touch panel according to the first aspect or the second aspect, wherein an inner edge of each opening has a substantially strip-shaped upper electrode or a lower electrode The end edge is substantially parallel. According to a sixth aspect of the present invention, there is provided a mutual capacitance type touch panel according to the first aspect or the second aspect, wherein an electrode portion between adjacent ones of the opening edges of the upper electrode A plurality of protruding portions are formed to extend along the first direction. EFFECTS OF THE INVENTION According to the present invention, adjacent upper electrodes are disposed close to each other to ensure electrical insulation between adjacent upper electrodes, and adjacent lower electrodes are disposed close to each other to ensure electrical insulation between adjacent lower electrodes. To this extent, the gap between the upper electrodes and the lower electrodes can be reduced, so that the gap can be made less noticeable. Furthermore, since a plurality of openings are formed in the upper electrode at the intersection of the substantially strip-shaped upper electrode and the lower electrode, the intersection can be visually compared to the intersection where the opening is not formed. Not obvious. Therefore, in the mutual capacitive touch panel, the mesh pattern of the electrode patterns of the upper electrode and the lower electrode can be reduced. 6 201250562 BRIEF DESCRIPTION OF THE DRAWINGS These aspects and features of the present invention can be derived from the following description of the preferred embodiments of the appended drawings. Fig. 1 is a schematic view showing an electrode pattern of a touch panel with reference to a reference example of the embodiment of the present invention. Fig. 2 is a view showing the structure of the electrode lamination direction of the touch panel of the reference example of Fig. 1. Fig. 3 is a view showing an electrode pattern of a touch panel according to an embodiment of the present invention. Fig. 4 is a view showing the structure of the electrode lamination direction of the touch panel of the embodiment of Fig. 3. Fig. 5 is a view showing an electrode pattern of a touch panel according to a modification of the embodiment of the present invention. Fig. 6A is a schematic view showing an electrode pattern of a touch panel of a reference example. Fig. 6B is a schematic view showing the pattern of the upper electrode of the touch panel of the reference example. Fig. 6C is a schematic view showing the pattern of the lower electrode of the touch panel of the reference example. Fig. 7A is a schematic view showing an electrode pattern of the touch panel of the first embodiment. Fig. 7B is a view showing the pattern of the upper electrode of the touch panel of the first embodiment. Fig. 7C is a view showing the pattern of the lower electrode of the touch panel of the first embodiment. Fig. 7D is a partially enlarged view showing the pattern of the upper electrode of the first embodiment. 201250562 Fig. 7E is a partially enlarged view showing the pattern of the lower electrode of the first embodiment. Fig. 8A is a schematic view showing an electrode pattern of the touch panel of the second embodiment. Fig. 8B is a schematic view showing the pattern of the upper electrode of the touch panel of the second embodiment. Fig. 8C is a schematic view showing the pattern of the lower electrode of the touch panel of the second embodiment. Fig. 8D is a partially enlarged view showing the pattern of the upper electrode of the second embodiment. Fig. 8E is a partially enlarged view showing the pattern of the lower electrode of the second embodiment. Fig. 9A is a schematic view showing an electrode pattern of the touch panel of the third embodiment. Fig. 9B is a schematic view showing the pattern of the upper electrode of the touch panel of the third embodiment. Fig. 9C is a schematic view showing the pattern of the lower electrode of the touch panel of the third embodiment. Fig. 9D is a partially enlarged view showing the pattern of the upper electrode of the third embodiment. Fig. 9E is a partially enlarged view showing the pattern of the lower electrode of the third embodiment. Fig. 10A is a schematic view showing an electrode pattern of the touch panel of the fourth embodiment. Fig. 10B is a view showing the pattern of the upper electrode of the touch panel of the fourth embodiment. Fig. 10C is a view showing the pattern of the lower electrode of the touch panel of the fourth embodiment. Fig. 10D is a partially enlarged view of the electrode pattern of the fourth embodiment. Fig. 10E is a partial enlarged view of an electrode pattern of a modification of the fourth embodiment. 201250562 Fig. 11 is a schematic view showing an electrode pattern of a conventional touch panel. Fig. 12 is a schematic cross-sectional view showing the electrode lamination direction of the conventional touch panel of Fig. 11.
C實施冷式J 用以實施發明之形態 以下，就本發明之實施形態，一面參照圖式，—面說 明。此外’本發明非以此實施形態限定者。 在就本發明之實施形態說明時，就互靜電容式觸控面 板（以下僅稱為「觸控面板」。）中，使以上部電極及下部電 極構成之電極圖形之網格狀圖案可見現象減低的本發明之 觀點作說明。 首先相對於第11圖及第12圖所示之習知觸控面板5〇1 之電極圖形，考慮具有第1圖之示意圖所示之電極圖形之觸 控面板1作為可使網格狀圖案可見現象減低之電極圖形（參 考例）。 具體言之，如第1圖所示，觸控面板1包含有沿著X方向 相互平行地配置之複數下部電極1G、以與各下部電極交叉 (垂直相交）之狀態沿著Y方向相互平行地配置之複數上部 電極20。上部電極2G與下部電極1G藉將透光性電極材料(例 如ITO)㈣加工而形成，而形成作為相互分離之大致帶狀 之電極。 再者，如第1圖所示，在觸控面板i之電極圖形中，在 上部電極20之寬度形成為與下部電極上㈣之程度 的寬度之點，與習知觸控面板5G1之電極圖形不同。具體言 201250562 之，相鄰之下部電極10間之間隙11形成狹小至可確保下部 電極_之電絕緣的程度’同樣地，相鄰之上部電極2〇間 =間隙21形成狹小至可確虹部電極2q間之電絕緣之程 又:即，上部電極2〇間之_21形成為遠小於 之寬度。 在具有此種電極圖形之觸控面板4，在難面板k 電極圖形，由於上部電極_之_21財部電極10間之 間隙u形成狹小至可確保相互之電絕緣之程度，故可使間 隙11、21難以明顯，而使上部電獅及下部電㈣之端緣 的輪廊難以明顯。因而’與第11圖之習知觸控面板501之電 極圖形相較’顧觸控面板丨可使電極圖形之網格狀圖案可 見現象減低。 然而’在此種馳面板丨中，雖然可減低網格狀圖案可 見現象’但產生觸控面板原本要求之偵測功能降低之問 題。具體έ之，如第2圖之示意圖所示，在觸控面板丨，形 成電力線L從發送側之下部電極1〇朝向接收側之上部電極 2〇的電場。然而，由於相鄰之上部電極2〇間之間隙幻形成 狹小至與下部電極ίο間之間隙η相同程度，故即使手指等 物體2#近上部電極2〇時，亦有電力線L無法通過上部電極 20間之間隙21，而朝向物體2之情形，此時，有互靜電容不 產生變化，而無法檢測物品2往觸控面板側靠近或接觸之問 題。因而’在第1圖所示之觸控面板1中，雖然可減低電極 圖形之網格狀圖案可見現象，但由於偵測功能降低，故無 法使用作為觸控面板。 201250562 是故，在本發明之實施形態之觸控面板31中，採用第3 圖所示之電極圖形。如第3圖所示，在觸控面板31，與第1 圖之觸控面板1同樣地，採用使沿著X方向（第1方向）相互平 行地配置之大致帶狀之複數下部電極4〇、及沿著γ方向（第2 方向）相互平行地配置之大致帶狀之上部電極5〇交叉的結 構，相互相鄰之上部電極5〇間之間隙51形成狹小至與相互 相鄰之下部電極40間之間隙41同程度、即可確保電絕緣之 程度。 在上部電極50與下部電極4〇之交叉部份33，於上部電 極50形成有複數開口部52。此開口部52之形狀可採用各種 形狀，在第3圖所示之例中，具有與上部電極5〇或下部電極 40之端緣平行之内緣之形狀係開口部52形成方形。此外， 開口部之形狀除了方形外，亦可採用圓形、菱形、三角形 等各種形狀。此外，上部電極50與下部電極4〇之交差部份 33係指從觸控面板側觀看觸控面板31時，上電電極5〇與下 部電極之相互之形成區域（以兩端緣所包夹之區域)看起來 重疊之區域。此外，在第3圖中，以點線包圍丨個交叉部份 33 ° 又，複數開口部52形成相互相同之形狀，在交叉部份 33，以一定之間隔間距排列。舉例言之，令為相互相鄰之 開口部52間之電極部份之寬度的線寬度53及為開口部52與 上部電極50之端緣間之電極部份的寬度之線寬度54係與上 部電極5 0間之間隙5丨及下部電極4 〇間之間隙4丨相同之寬度 或正整數倍的寬度。 201250562 如此，藉構成本實施形態之觸控面板31之電極圖形， 可減低電極圖形之網格狀圖案可見現象。再者，如第4圖之 示意圖所示’在觸控面板31中’形成如電力線[從發送側之 下部電極40朝向接收側之上部電極50的電場。再者，由於 在上部電極50與下部電極40之交叉部份33，於上部電極5〇 形成有複數開口部52,故手指等物體2靠近上部電極5〇時， 電力線L可通過形成於上部電極2 〇之開口部5 2而朝向物體 2。因而，可確實地檢測物體2對觸控面板側之接觸作為互 靜電容之變化，且可偵測所檢測出之座標作為檢測點。此 外，在本實施形態之觸控面板31中，包含有檢測此種互靜 電容之變化之檢測機構，此檢測機構可採用在互靜電容式 觸控面板中眾所皆知之各種結構之機構。 在本實施形態之觸控面板31中，於交又部份形成於上 部電極50之開口部52擔負下述至少2個作用。 首先，開口部52之第i個作用係使電極圖形之網格狀圖 案可見現象之作用。藉在上部電極50中，於與下部電極4〇 之交叉部份33形成複數開口部52，可不使交叉部份33本身 在視覺上明顯》特別是藉使複數開口部52具有規則性排 列，可提尚此種效果。舉例s之，藉使開口部52之内緣呈 形成為具有與上部電極50或下部電極4〇之端緣平行之部份 的形狀(例如方形），且將相同之尺寸之開口部52以一定之間 隔間距排列，可使交又部份33在視覺上不明顯。 再者’在上部電極50 ’採用以上部電極5〇間之間隙51 或下部電極40間之間隙41為單位尺寸，且使形成於開口部 12 201250562 52之周圍之線寬度53、54為與此單位 &尺寸相同之寬度或正 整數倍的寬度之規則性，藉此，不僅交又部仙，可斑上 部電極50間之間隙51及下部電極40間之間_配合，使電 極圖形全體在視覺上為均一之圖樣。 藉開口部52之此種作用，在觸控而 上面板31，可減低電極 圖形之網格狀圖案可見現象。此外，開口部52配置在交叉 部份33内，從觸控面側觀看時’於下部電極4_之_41 上重疊上部電極50之電極部份。藉如此進行，可使下部電 極40之間隙41不明顯’而可提高網格狀圖案可見現象之減 低效果。 其次，開口部52之第2個作用係確保原本對觸控面板31 要求之偵測功能。在觸控面板31 ’上部電極5〇之間隙51形 成狹小至與下部電極40之間隙41實質上相同之程度，在交 又部份33，開口部52擔負使電力線L通過之作用，藉此，可 確實地偵測物體2接觸觸控面側。 如上述，根據本實施形態之觸控面板31，在上部電極 50 ’於與下部電極40之交叉部份33形成有複數開口部52， 藉此’可確保作為觸控面板之偵測功能，並且可減低電極 圖形之網格狀圖案可見現象。再者，藉使形成於交叉部份 33之複數開口部52之形狀或排列具規則性，可更有效地減 低網格狀圖案可見現象。 又’上部電極50及下部電極40使用ITO作為透光性電極 材料，藉在交叉部份33，形成複數開口部52，可減低上部 電極50與下部電極4〇重疊之區域之面積。為電極材料之IT〇 13 201250562 在光學上具有透光性’而在電極重疊2層之區域，相較於僅 1層之區域’光之穿透率稍微降低。因而，藉於交又部份33 形成開口部52,電極層可接近[層之狀態，在光學上亦適合。 此外’在本實施形態中，以上部電極5〇及下部電極4〇 以ITO形成之情形為例’亦可使用奈米碳管或奈米銀纖維等 其他透光性電極材料 又’在父又部份33排列之開口部52不限於皆為相同之 形狀之情形’亦可使複數種形狀之開口部份混合排列。 又’以形成大致帶狀之上部電極5〇與下部電極4〇之兩 端緣形成為平行於X方向或γ方向之直線之情形為例，兩端 緣亦可不平行，又，不限於直線。舉例言之，亦可將兩端 緣形成突起部份連續形成之梳齒狀。 又’在本實施形態中’上部電極5〇之寬度形成大於相 鄰之上》卩電極5〇間之間隙。即，形成為（上部電極之宽度尺 寸/(上部電極5〇之宽度尺寸+上部電極5〇間之間隙尺寸))超 過至少50%。（上部電極之寬度尺寸/(上部電極％之寬度尺 寸+上部電極50間之間隙尺寸）以超過8〇%為佳，進而，（上 部電極之寬度尺寸/(上部電極5〇之寬度尺寸+上部電極5〇間 之間隙尺寸))以超過90%為更佳。 又，在本實施形態之觸控面板31，以在交叉部份33， 於上部電極50形成複數開口部52之情形為例，進一步亦 可在交叉部份33，亦於下部電極4〇形成開口部。此種電極 圖形之例係於第5圖顯示變形例之觸控面板61之電極圖形 之示意圖。此外’對與第3圖所示之觸控面板31相同之結構 201250562 附上相同之參照標號，而省略其說明。以下，僅就與第3圖 之觸控面板31之不同點作說明。 如第5圖所示，在變形例之觸控面板61之電極圖形中， 上部電極50及下部電極40之配置、以及在交叉部份33形成 於上部電極50之複數開口部52之配置為與第3圖之電極圖 形相同之配置結構。在下部電極40，於上部電極5〇之交叉 部份33形成有複數開口部42。在觸控面板61，從觸控面側 觀看時，於與上部電極50之開口部52對應之下部電極4〇之 電極部份之區域内形成有開口部42。下部電極4〇之開口部 42形成小於上部電極50之開口部52，從觸控面側觀看時， 下部電極40之開口部42可在不透過上部電極5丨下目視辨 認。又，下部電極40之開口部42宜形成類似於上部電極5〇 之開口部52之形狀，在第5圖所示之例中，皆形成為方形。 再者’在交叉部份33 ’下部電極41之開口部42具有規則性 而排列，舉例言之’以一定之間隔間距排列。 在第5圖所示之觸控面板61之電極圖形中，採用下述并 構，前述結構係在交叉部份33，Φ於下部電極_形成開 口部42，上部電極50側之複數開口部52及下部電極4〇側之 複數開口部42具有相互相關之規則性而排列者。因而可 使電極圖形全體呈較細微之圖樣，而謀求視覺上之一樣 化’而可有效地減低網格狀圖案可見現象。 此外’在第5圖所示之電極圖形中，以對應於上部電極 5〇之！個開口部52,丨個開口部42形成於下部電極4〇之情形 為例，作了說明，亦可對應於上部電極”之丨個開口部 15 201250562 複數個開口部形成於下部電極40。 一面將依據如上述之本發明實施形態之電極圖形的實 施例與為習知電極圖形之比較例對比，一面就網格狀圖案 可見現象之減低效果作說明。 比較例 比較例係於第6 A圖顯示從觸控面側觀看習知觸控面板 501之電極圖形之示意圖。又，於第6B圖顯示上部電極520 之圖形，於第6C圖顯示下部電極510之圖形。 如第6A圖〜第6C圖所示，在比較例之觸控面板501之電 極圖形中，上部電極520之寬度較下部電極510之寬度小， 上部電極520與下部電極510之未交叉之部份的面積大於交 叉部份之面積。此外，各上部電極520及下部電極510個別 電性連接於配置於電極圖形之周圍的框狀端子部份505。 在此種比較例之電極圖形中，如第6A圖所示，可知於 X方向延伸之下部電極510及於Y方向延伸之上部電極520 產生電極於各方向延伸之帶狀圖樣明顯之網格狀圖案可見 現象。 第1實施例 接著，本發明第1實施例係於第7 A圖顯示從觸控面側觀 看觸控面板101之電極圖形之示意圖（即，上部電極及下部 電極重疊之電極圖形之示意圖）。又，於第7B圖顯示上部電 極120之圖形，於第7C圖顯示下部電極110之圖形。又，於 第7D圖顯示第7B圖之上部電極120之部份放大圖，於第7E 圖顯示第7C圖之下部電極110之部份放大圖。 16 201250562 如第7人圖~第7E圖所示’上部電極120以於γ方向延伸 之大致帶狀電極形成，複數上部電極12〇相互平行地排列， 下部電極110以於X方向延伸之大致帶狀之電極形成，複數 下部電極110相互平行地排列。又’上部電極12〇及下部電 極110各在其長向之端部’個別電性連接於包圍電極圖形之 框狀端子部份105。又’於上部電極120，在與下部電極11 〇 之交又部份103，形成有複數開口部122 在此’使用第7D圖及第7Ε圖，就上部電極12〇及下部 電極110之形狀，使用尺寸例，詳細地說明。上部電極12〇 之寬度1„及下部電極110之寬度皆形成4.3mm，相鄰之 上部電極120間之間隙Dn及相鄰之下部電極11〇間之間隙 Di2皆為0.3mm。此外，在本第1實施例中，此〇 3mm之尺寸 為單位尺寸，此單位尺寸可從於蝕刻ITO而形成上部電極 120及下部電極11〇時在製造上要求之加工限制（即，最小加 工空間之限制等）或用以確保透光性電極材料之電絕緣之 電特性決定。 於上部電極120形成有同一形狀之複數開口部丨22，舉 例s之’以X方向之寬度W!3為1.7mm、Y方向之寬度w丨4為 2.0mm之長方形開口形成。又，相鄰之開口部122間之電極 部份之X方向的寬度W1S及Y方向之寬度^/16為〇.31^11，與上 部電極120之間隙Dn及下部電極11〇之間隙dI2—致。又，在 1處之交叉部份103 ’於上部電極120形成有4個開口部丨22， 以2行χ2列且以一定間隔間距排列開口部122。又，如第7A 圖所示，決定上部電極120之開口部122之形成位置為在重 17 201250562 且上。pm2〇與下部電極11()之狀態下，於下部電極ιι〇間 之間隙上重疊上部電極12G之電極部份。 在第1實施例之觸控面板101之電極圖形中，可知與比 較例之電極圖形相較下，明顯地減低了電極圖形之網格狀 圖案可見現象。 第2實施例 接著’本發明之第2實施例係於第8A圖顯示從觸控面側 觀看觸控面板2G1之電極圖形之示意圖（即，上部電極及下 郤電極重疊之電極圖形之示意圖）。又於第8B圖顯示上部 電極220之_形，於第8C圖顯示下部電極训之圖形。又， 於第8D圖顯示第8B圖之上部電極22〇之部份放大圖，於第 8E圖顯不第8C圖之下部電極21〇之部份放大圖。此外，關於 與第1贯施例共通之結構，附上相同之參照標號，而省略其 說明。 如第8A圖〜第8E圖所示，在第2實施例之電極圖形中， 於上部電極220，在與下部電極21〇之交叉部份203 ,形成有 複數開口部222之點與第1實施例相同，而在第2實施例中， 開口部222形成小於第1實施例之開口部122。 具體言之，如第8D圖及第8E圖所示，上部電極22〇之 寬度及下部電極210之寬度W!2皆形成4.3mm，相鄰之上 部電極220間之間隙D2,及相鄰之下部電極210間之間隙D22 皆為0.3mm。再者，上部電極120之開口部22以X方向之寬 度W23為1.0mm、Y方向之寬度W24為〇.8mm之長方开j開口形 成。又’相鄰之開口部222間之電極部份之X方向的寬度Μ。 18 201250562 及Y方向之寬度w26為〇·3聰’與上部電極2默間隙D21及 下部電極21〇之間隙D22-致。Λ，在1處之交叉部份2〇3， 於上部電極220形成有㈣開0部222，以4价3列且以一定 間隔間距排列開口部222。 在第2實施例之觸控面板2〇1之電極圖形中，可知與比 較例之電極圖形相較下，減低了電極圖形之網格狀圖案可 見現象。再者，由於使用較第1實施例微小之開口部222， 故可使電_形全體為較微小之圖樣，而謀求視覺上之一 樣化’而可提高網格狀圖案可見現象之減低效果。 第3實施例 接著本發月之第3實施例係於第从圖顯示從觸控面側 觀看觸控面板3(U之電極圖形之示意圖（即，上部電極及下 部電《疊之電姻狀示_。又，於第侧顯示上部 電極320之圖形，於第9C_示下部電極則之圖形。又， 於第9D圖顯示第9B圖之上部電極32〇之部份放大圖，於第 _顯示第9C圖之下部電極31〇之部份放大圖。此外，關於 與第1實施例共通之結構，附上相同之參照標號 ，而省略其 說明。 如第9A圖〜第9E圖所示，在第3實施例之電極圖形中， 於上部電極320 ’在與下部電極則之交又部份如，形成有 複數開口 #322之點與第1實施例相同，而在第3實施例中， 在交叉部份303，亦於下部電極31〇形成有開口部312。 具體言之，如第9D圖及第9E圖所示，上部電極32〇之 寬度W”及下部電極31〇之寬度να皆形成4 3mm，相鄰之上 19 201250562 部電極320間之間隙D31及相鄰之下部電極31 〇間之間隙d32 皆為0.3mm。再者，上部電極320之開口部322以X方向之寬 度W33為1.7mm、Y方向之寬度W34為2.〇mm之長方形開口形 成。又，相鄰之開口部322間之電極部份之X方向的寬度W35 及Y方向之寬度W36為0.3mm ’與上部電極32〇之間隙D3|及 下部電極310之間隙Du—致。又，在丨處之交叉部份3〇3， 於上部電極320形成有4個開口部322，以2行χ2列且以一定 間隔間距排列開口部322。 再者，如第9E圖所示’在交又部份3〇3，於對應於上部 電極320之開口部322之下部電極310上之區域形成有具有2 行χ2列總計4個之同一形狀及尺寸的開口部312。 下部電極310之開口部312以X方向寬度W37為〇_4mm、 Y方向之寬度W38為0.6mm之長方形開口形成。又，在2行父 2列之排列内於X方向相鄰之開口部312間之電極部份的X 方向及Y方向之寬度W39為0.3mm，與上部電極320之間隙 D”及下部電極31〇之間隙Du—致。又，於γ方向相鄰之2行 X2列之開口部312的群組間之電極部份之寬度w叫為 ，上部電極320之間隙及下部電極31〇之間隙 之正整數倍（即，3倍）。 在第3實施例之觸控面板3〇1之電極圖形中，可知與比 較例之電極圖形相較下，減低了電極圖形之網格狀圖案可 見現象。藉組合上部電極320之開口部322與下部電極31〇之 開口部3丨2’可使電極圖形全體為較細微之圖樣，而謀求視 覺上之—樣化，而可提高網格狀圖案可見現象之減低效果。 20 201250562 第4實施例 接著，本發明之第4實施例係於第圖顯示從觸控面 側觀看觸控面板401之電極圖形之示意圖（即，上部電極及 下部電極重叠之電極圖形之示意圖）。又，於第_圖顯示 上部電極420之圖形，於第咖圖顯示下部電極训之圖形。 又’於第1GD圖顯示第1()A圖之電極圖形之部份放大圖。此 卜關於與第1實施例共通之結構社相同之參照標號， 而省略其說明。 如第10A圖〜第10D圖所示，在第4實施例之電極圖形 古於上部電極42〇，在與下部電極之交又部份如，形 複數開口部422之點與树施例相同，而在第4實施例 上部電極420之兩端緣(終端)形成梳齒狀。 出之=_所示，於上部電極之端緣，於X方向突 突起部份425沿著Y方向以一定_形成，™ 之上;if5 ’上部電極42°之端緣呈梳齒狀。形成於相鄰 端緣，使在Y方向A X 在上部電極420之 向延伸而形成有各突起縣^422間之電極部份沿著X方 之具體===:面:第4實施例之上部電極· 例，與第1實施例相^ 關於下部電極彻之尺寸 突起部份仍之端部間間(即，對向之 ，，相同。形成於上部;極；=: 21 201250562 向之寬度W4i為0.96mm、Y方向之寬度W42為〇.96mm之正方 形開口形成。又，相鄰之開口部422間之電極部份之X方向 之寬度W43及Y方向之寬度W44為0.3mm，與上部電極420之 間隙D4I及下部電極410之間隙一致。又，在1處之交叉部份 403，於上部電極420形成有9個開口部422。此外，在第4實 施例之電極圖形中，為在相當於下部電極410間之間隙之上 部電極420的區域亦形成開口部422之例。 在第4實施例之觸控面板401之電極圖形中，可知相較 於比較例之圖形，減低了電極圖形之網格狀圖案可見現 象。特別是相較於第1及第2實施例，由於藉上部電極420之 端緣呈梳齒狀，可發揮如在上部電極420間之間隙好像亦存 在相當於開口部422之構造之視覺上的效果，故可使上部電 極420之端緣之輪廓難以明顯。是故，可使電極圖形全體在 視覺上一樣化’而可提高網格狀圖案可見現象之減低效果。 此外，亦可如第丨〇E圖所示，在上部電極470 ’僅使其 中一端緣為梳齒狀，另一者為直線狀取代如第10D圖所示， 使上部電極42〇之兩端緣呈梳齒狀之情形。又，突起部份425 之突起長度不限於相同，亦可使長度不同。又，在上部電 極之兩端緣，梳齒狀亦可為非對稱。 此外’藉適宜組合上述各實施形態中之任意實施形 態’可發揮各自具有之效果。 本發明可利用於以互靜電容式感應在觸控面板中手指 等操作物體所接觸之面板上之位置的互靜電容式觸控面 板’可利用於搭載有以智慧型手機、電子書閱讀機（電子書 22 201250562 終端）、個人電腦等為代表之觸控面板之電子裝置。 本發明一面參照附加圖式，一面與較佳之實施形態相 關而充分地記載，對熟悉此技術之人而言，可明白各種變 形及修正。應理解該種變形及修正只要不脫離附加之申請 專利範圍之本發明之範圍，便包含於其中。 於2011年4月28日提申之日本專利申請案 No.2011-101926號之說明書、圖式、及申請專利範圍之揭 示内容係參照全體而納入本說明書中者。 C圖式簡單說明3 第1圖係相對於本發明實施形態之參考例之觸控面板 之電極圖形的示意圖。 第2圖係顯示第1圖之參考例之觸控面板之電極積層方 向之結構的示意圖。 第3圖係本發明實施形態之觸控面板之電極圖形的示 意圖。 第4圖係顯示第3圖之實施形態之觸控面板之電極積層 方向之結構的不意圖。 第5圖係本發明實施形態之變形例之觸控面板之電極 圖形的示意圖。 第6A圖係參考例之觸控面板之電極圖形的示意圖。 第6B圖係參考例之觸控面板之上部電極之圖形的示意 圖。 第6C圖係參考例之觸控面板之下部電極之圖形的示意 圖。 23 201250562 第7A圖係第1實施例之觸控面板之電極圖形的示意圖。 第7B圖係第1實施例之觸控面板之上部電極之圖形的 示意圖。 第7 C圖係第1實施例之觸控面板之下部電極之圖形的 示意圖。 第7D圖係第1實施例之上部電極之圖形的部份放大圖。 第7E圖係第1實施例之下部電極之圖形的部份放大圖。 第8 A圖係第2實施例之觸控面板之電極圖形的示意圖。 第8B圖係第2實施例之觸控面板之上部電極之圖形的 示意圖。 第8 C圖係第2實施例之觸控面板之下部電極之圖形的 示意圖。 第8D圖係第2實施例之上部電極之圖形的部份放大圖。 第8E圖係第2實施例之下部電極之圖形的部份放大圖。 第9A圖係第3實施例之觸控面板之電極圖形的示意圖。 第9B圖係第3實施例之觸控面板之上部電極之圖形的 示意圖。 第9C圖係第3實施例之觸控面板之下部電極之圖形的 示意圖。 第9D圖係第3實施例之上部電極之圖形的部份放大圖。 第9E圖係第3實施例之下部電極之圖形的部份放大圖。 第10A圖係第4實施例之觸控面板之電極圖形的示意 圖。 第10B圖係第4實施例之觸控面板之上部電極之圖形的 24 201250562 示意圖。 第10C圖係第4實施例之觸控面板之下部電極之圖形的 示意圖。 第10D圖係第4實施例之電極圖形之部份放大圖。 第10 E圖係第4實施例之變形例之電極圖形的部份放大 圖。 第11圖係習知觸控面板之電極圖形之示意圖。 第12圖係第11圖之習知觸控面板之電極積層方向的示 意截面圖。 【主要元件符號說明】 卜3卜6卜101…觸控面板 2，502...物體 10，40，110，210·.·下部電極 11，21，41，51 …間隙 20，50，120，220…上部電極 33，103，203，303，403.··交叉部份 42，52，122，222.·.開口部 53，54...線寬度 105.. .框狀端子部份 201，301，401，501...觸控面板 310，410，510...觸控面板 312，322，422···開口部 320，420，470，520...上部電極 425.. .突起部份 25 201250562 505...端子部份 D" ’ D2I ’ D3I ’ 〇41上部電極間之間隙 D|2 ’ D22 ’ D32···下部電極間之間隙 L…電力線C. The embodiment of the present invention will be described with reference to the drawings. Furthermore, the invention is not limited by this embodiment. In the case of the embodiment of the present invention, in the mutual capacitive touch panel (hereinafter simply referred to as "touch panel"), the grid pattern of the electrode pattern formed by the upper electrode and the lower electrode is visible. The reduced viewpoint of the present invention is explained. First, with respect to the electrode patterns of the conventional touch panel 5〇1 shown in FIGS. 11 and 12, the touch panel 1 having the electrode pattern shown in the schematic view of FIG. 1 is considered as the grid pattern can be seen. Electrode pattern with reduced phenomenon (Reference example). Specifically, as shown in FIG. 1 , the touch panel 1 includes a plurality of lower electrodes 1G arranged in parallel with each other in the X direction, and intersecting with each lower electrode in a state of being perpendicular to each other in the Y direction. A plurality of upper electrodes 20 are disposed. The upper electrode 2G and the lower electrode 1G are formed by processing a translucent electrode material (e.g., ITO) (4) to form electrodes which are substantially strip-shaped apart from each other. Furthermore, as shown in FIG. 1 , in the electrode pattern of the touch panel i, the width of the upper electrode 20 is formed to a width corresponding to the width of the lower electrode (four), and the electrode pattern of the conventional touch panel 5G1. different. Specifically, in 201250562, the gap 11 between the adjacent lower electrodes 10 is formed to be narrow enough to ensure the electrical insulation of the lower electrode _. Similarly, the adjacent upper electrode 2 〇 = gap 21 is formed to be narrow to the exact part The process of electrical insulation between the electrodes 2q is again: that is, the _21 between the upper electrodes 2 is formed to be much smaller than the width. In the touch panel 4 having such an electrode pattern, in the hard-plate k-electrode pattern, since the gap u between the upper electrode _21 and the financial electrode 10 is narrowed to ensure mutual electrical insulation, the gap 11 can be made. 21 is difficult to be obvious, and the corridor of the upper electric lion and the lower edge of the lower electric (four) is difficult to be obvious. Therefore, the touch panel 丨 can reduce the visibility of the grid pattern of the electrode pattern as compared with the electrode pattern of the conventional touch panel 501 of FIG. However, in such a panel, although the grid pattern can be reduced, the problem that the detection function originally required by the touch panel is lowered is generated. Specifically, as shown in the schematic view of Fig. 2, in the touch panel 丨, an electric field of the power line L from the lower side of the transmitting side to the upper side of the receiving side is formed. However, since the gap between the adjacent upper electrodes 2 is narrowed to the same extent as the gap η between the lower electrodes ίο, even if the object 2# near the upper electrode 2 is closed, the power line L cannot pass through the upper electrode. There is a gap of 21 between the two, and in the case of the object 2, at this time, there is no change in the mutual capacitance, and it is impossible to detect the problem that the article 2 approaches or contacts the side of the touch panel. Therefore, in the touch panel 1 shown in Fig. 1, although the grid pattern of the electrode pattern can be reduced, the detection function is lowered, so that it cannot be used as the touch panel. In the touch panel 31 according to the embodiment of the present invention, the electrode pattern shown in Fig. 3 is used. As shown in FIG. 3, in the touch panel 31, similarly to the touch panel 1 of the first embodiment, a plurality of lower electrodes 4a having a substantially strip shape arranged in parallel with each other in the X direction (first direction) are used. And a structure in which the substantially strip-shaped upper electrodes 5〇 arranged in parallel with each other along the γ direction (second direction) intersect with each other, and the gap 51 between the adjacent upper electrodes 5 is narrowed to be adjacent to the lower electrode 40 gaps of 41 to the same extent, to ensure the degree of electrical insulation. A plurality of openings 52 are formed in the upper electrode 50 at the intersection portion 33 of the upper electrode 50 and the lower electrode 4''. The shape of the opening 52 can take various shapes. In the example shown in Fig. 3, the shape of the inner edge parallel to the edge of the upper electrode 5 or the lower electrode 40 is such that the opening 52 is square. Further, the shape of the opening may be any shape such as a circle, a rhombus or a triangle, in addition to a square shape. In addition, the intersection portion 33 of the upper electrode 50 and the lower electrode 4 系 refers to the mutual formation region of the upper electrode 5 〇 and the lower electrode when the touch panel 31 is viewed from the touch panel side (covered by both end edges) The area that appears to overlap. Further, in Fig. 3, the intersecting portions are surrounded by a dotted line by 33 °, and the plurality of openings 52 are formed in the same shape, and are arranged at a predetermined interval in the intersecting portion 33. For example, the line width 53 of the width of the electrode portion between the adjacent opening portions 52 and the line width 54 of the width of the electrode portion between the opening portion 52 and the end edge of the upper electrode 50 are the upper portion and the upper portion. The gap between the electrodes 50 and the gap between the lower electrodes 4 and 4 is the same width or a positive integer multiple. In the case of the electrode pattern of the touch panel 31 of the present embodiment, the visible pattern of the grid pattern of the electrode pattern can be reduced. Further, as shown in the diagram of Fig. 4, 'in the touch panel 31', an electric field such as a power line [from the lower electrode 40 on the transmitting side toward the upper electrode 50 on the receiving side is formed. Further, since the plurality of openings 52 are formed in the upper electrode 5A at the intersection portion 33 of the upper electrode 50 and the lower electrode 40, when the object 2 such as a finger approaches the upper electrode 5, the power line L can be formed on the upper electrode. 2 The opening portion 52 of the crucible faces the object 2. Therefore, the contact of the object 2 with the touch panel side can be reliably detected as a change in the mutual capacitance, and the detected coordinates can be detected as the detection point. In addition, the touch panel 31 of the present embodiment includes a detecting mechanism for detecting such a change in mutual capacitance, and the detecting mechanism can employ various structures known in the mutual capacitive touch panel. . In the touch panel 31 of the present embodiment, the opening portion 52 formed in the upper electrode 50 is at least two functions described below. First, the i-th effect of the opening portion 52 serves to make the grid pattern of the electrode pattern visible. In the upper electrode 50, a plurality of openings 52 are formed at the intersection 33 with the lower electrode 4, so that the intersection portion 33 itself is not visually conspicuous, in particular, by the regular arrangement of the plurality of openings 52. Give this effect. For example, the inner edge of the opening 52 is formed into a shape (for example, a square shape) having a portion parallel to the edge of the upper electrode 50 or the lower electrode 4, and the opening 52 of the same size is fixed. The spacing is arranged such that the intersection portion 33 is visually inconspicuous. Further, 'the upper electrode 50' employs a gap 51 between the upper electrodes 5 and a gap 41 between the lower electrodes 40, and the line widths 53, 54 formed around the opening 12 201250562 52 are The uniformity of the width of the unit & the width of the same dimension or the width of the positive integer multiple, whereby not only the intersection and the smear, but also the gap between the gap 51 between the upper electrode 50 and the lower electrode 40, so that the electrode pattern is all Visually a uniform pattern. By the action of the opening portion 52, the upper panel 31 can be touched to reduce the visible pattern of the grid pattern of the electrode pattern. Further, the opening portion 52 is disposed in the intersecting portion 33, and the electrode portion of the upper electrode 50 is overlapped on the lower electrode 4__41 when viewed from the touch surface side. By doing so, the gap 41 of the lower electrode 40 can be made inconspicuous, and the effect of reducing the visible phenomenon of the grid pattern can be improved. Secondly, the second function of the opening 52 ensures the detection function originally required for the touch panel 31. The gap 51 of the upper electrode 5' of the touch panel 31' is narrowed to the extent that it is substantially the same as the gap 41 of the lower electrode 40. In the portion 33, the opening portion 52 serves to pass the power line L. It is possible to reliably detect that the object 2 is in contact with the touch surface side. As described above, according to the touch panel 31 of the present embodiment, the plurality of openings 52 are formed in the intersection portion 33 of the upper electrode 50' and the lower electrode 40, thereby ensuring the detection function as the touch panel. It can reduce the visible phenomenon of the grid pattern of the electrode pattern. Further, by making the shape or arrangement of the plurality of openings 52 formed in the intersecting portion 33 regular, the phenomenon of the grid pattern can be more effectively reduced. Further, ITO is used as the translucent electrode material for the upper electrode 50 and the lower electrode 40, and the plurality of openings 52 are formed in the intersecting portion 33, so that the area of the region where the upper electrode 50 and the lower electrode 4'' are overlapped can be reduced. The IT 〇 13 201250562, which is an electrode material, is optically transmissive, and in the region where the electrodes overlap two layers, the transmittance of light is slightly lowered as compared with the region of only one layer. Therefore, the opening portion 52 is formed by the portion 33, and the electrode layer can be brought close to the [layer state, and is also optically suitable. Further, in the present embodiment, the case where the upper electrode 5〇 and the lower electrode 4〇 are formed of ITO is exemplified, and other translucent electrode materials such as a carbon nanotube or a nanosilver fiber may be used. The opening portions 52 in which the portions 33 are arranged are not limited to the case of being the same shape. The opening portions of the plurality of shapes may be mixed and arranged. Further, as an example in which the two end edges of the upper strip-shaped upper electrode 5'' and the lower electrode''''''''''''' For example, the both end edges may be formed into a comb-like shape in which the protruding portions are continuously formed. Further, in the present embodiment, the width of the upper electrode 5'' is formed to be larger than the gap between the adjacent electrodes 5'. That is, it is formed such that (the width dimension of the upper electrode / (the width dimension of the upper electrode 5 + + the gap size between the upper electrodes 5 ))) exceeds at least 50%. (The width dimension of the upper electrode / (the width dimension of the upper electrode % + the gap size between the upper electrodes 50) is preferably more than 8〇%, and further, (the width dimension of the upper electrode / (the width dimension of the upper electrode 5〇 + the upper portion) The gap size of the electrode 5 is preferably more than 90%. Further, in the touch panel 31 of the present embodiment, a case where the plurality of openings 52 are formed in the upper electrode 50 at the intersection portion 33 is taken as an example. Further, an opening portion may be formed in the intersection portion 33 and also in the lower electrode 4A. An example of such an electrode pattern is shown in Fig. 5 which is a schematic view showing an electrode pattern of the touch panel 61 of the modification. The same structure as the touch panel 31 shown in the figure is attached with the same reference numerals, and the description thereof is omitted. Hereinafter, only the difference from the touch panel 31 of FIG. 3 will be described. As shown in FIG. 5, In the electrode pattern of the touch panel 61 of the modification, the arrangement of the upper electrode 50 and the lower electrode 40 and the plurality of openings 52 formed in the intersection portion 33 on the upper electrode 50 are arranged in the same manner as the electrode pattern of FIG. Configuration structure. Under The electrode 40 has a plurality of openings 42 formed in the intersection portion 33 of the upper electrode 5A. When the touch panel 61 is viewed from the touch surface side, the lower electrode 4 corresponds to the opening portion 52 of the upper electrode 50. An opening portion 42 is formed in a region of the electrode portion. The opening portion 42 of the lower electrode 4A is formed to be smaller than the opening portion 52 of the upper electrode 50. When viewed from the side of the touch surface, the opening portion 42 of the lower electrode 40 may be opaque. The electrode 5 is visually recognized under the arm. Further, the opening portion 42 of the lower electrode 40 is preferably formed in a shape similar to the opening portion 52 of the upper electrode 5, and is formed into a square shape in the example shown in Fig. 5. The intersection portion 32 of the lower portion 41' of the lower electrode 41 is regularly arranged, for example, 'arranged at a certain interval. In the electrode pattern of the touch panel 61 shown in FIG. 5, the following structure is employed The above-described structure is formed in the intersection portion 33, Φ is formed in the lower electrode_opening portion 42, and the plurality of openings 52 on the upper electrode 50 side and the plurality of openings 42 on the lower electrode 4 side are arranged in a regular manner. Thus making the electrode pattern full The body is in a fine pattern, and seeks to be visually identical', and can effectively reduce the visible phenomenon of the grid pattern. Further, in the electrode pattern shown in Fig. 5, corresponding to the upper electrode 5 In the case where the opening portion 52 is formed in the lower electrode 4A as an example, it is described that the opening portion 15 201250562 corresponding to the upper electrode may be formed in the lower electrode 40. According to the embodiment of the electrode pattern of the embodiment of the present invention as described above, the effect of reducing the visible phenomenon of the grid pattern is described in comparison with the comparative example of the conventional electrode pattern. The comparative example is shown in Fig. 6A. A schematic diagram of an electrode pattern of a conventional touch panel 501 is viewed from the side of the touch surface. Further, a pattern of the upper electrode 520 is shown in Fig. 6B, and a pattern of the lower electrode 510 is shown in Fig. 6C. As shown in FIGS. 6A to 6C, in the electrode pattern of the touch panel 501 of the comparative example, the width of the upper electrode 520 is smaller than the width of the lower electrode 510, and the portion of the upper electrode 520 and the lower electrode 510 does not intersect. The area is larger than the area of the intersection. Further, each of the upper electrode 520 and the lower electrode 510 is electrically connected to a frame-shaped terminal portion 505 disposed around the electrode pattern. In the electrode pattern of this comparative example, as shown in FIG. 6A, it is understood that the lower electrode 510 extending in the X direction and the upper electrode 520 extending in the Y direction produce a grid pattern in which the strip pattern extending in each direction is apparent. The pattern is visible. First Embodiment Next, a first embodiment of the present invention is a view showing an electrode pattern of the touch panel 101 viewed from the side of the touch surface (i.e., a schematic view of an electrode pattern in which the upper electrode and the lower electrode are overlapped). Further, the pattern of the upper electrode 120 is shown in Fig. 7B, and the pattern of the lower electrode 110 is shown in Fig. 7C. Further, a partially enlarged view of the upper electrode 120 of Fig. 7B is shown in Fig. 7D, and a partial enlarged view of the lower electrode 110 of Fig. 7C is shown in Fig. 7E. 16 201250562 As shown in the seventh figure to the seventh figure, the upper electrode 120 is formed by a substantially strip electrode extending in the γ direction, the plurality of upper electrodes 12 〇 are arranged in parallel with each other, and the lower electrode 110 is extended in the X direction. The electrode of the shape is formed, and the plurality of lower electrodes 110 are arranged in parallel with each other. Further, the upper electrode 12A and the lower electrode 110 are individually electrically connected to the frame terminal portion 105 surrounding the electrode pattern at the end portion thereof. Further, in the upper electrode 120, a portion 103 is formed at a portion 103 intersecting the lower electrode 11, and a plurality of openings 122 are formed. Here, the shapes of the upper electrode 12 and the lower electrode 110 are used, using the 7D and 7th views. Use the size example to explain in detail. The width of the upper electrode 12A and the width of the lower electrode 110 are both 4.3 mm, and the gap Dn between the adjacent upper electrodes 120 and the gap Di2 between the adjacent lower electrodes 11 are 0.3 mm. In the first embodiment, the size of the 〇3 mm is a unit size, and the unit size can be determined from the manufacturing limitation of the upper electrode 120 and the lower electrode 11 when the ITO is etched (that is, the limitation of the minimum processing space, etc.) Or to determine the electrical properties of the electrically insulating material of the translucent electrode material. The upper electrode 120 is formed with a plurality of openings 22 of the same shape, for example, the width W in the X direction is 1.7 mm, Y A rectangular opening having a width w丨4 of 2.0 mm is formed. Further, the width W1S of the electrode portion between the adjacent opening portions 122 and the width of the Y direction are 〇.31^11, and the upper portion The gap Dn of the electrode 120 and the gap dI2 of the lower electrode 11A are formed. Further, the intersection portion 103' at one portion is formed with four opening portions 22 at the upper electrode 120, and is arranged at intervals of 2 rows and 2 columns. Arranging the opening portion 122. Again, as shown in Fig. 7A, the decision is made. The opening portion 122 of the electrode 120 is formed at a position on the weight 17 201250562 and above the pm2 〇 and the lower electrode 11 (), and the electrode portion of the upper electrode 12G is overlapped in the gap between the lower electrodes ιι. In the electrode pattern of the touch panel 101 of the embodiment, it is understood that the mesh pattern of the electrode pattern is significantly reduced as compared with the electrode pattern of the comparative example. Second Embodiment Next, the second embodiment of the present invention Figure 8A shows a schematic view of the electrode pattern of the touch panel 2G1 viewed from the side of the touch surface (i.e., a schematic view of the electrode pattern in which the upper electrode and the lower electrode overlap). The shape of the upper electrode 220 is also shown in Fig. 8B. Fig. 8C shows a graph of the lower electrode training. Further, in Fig. 8D, a partial enlarged view of the upper electrode 22A of Fig. 8B is shown, and in Fig. 8E, a portion of the lower electrode 21 of Fig. 8C is shown. In addition, the same reference numerals are attached to the same components as those in the first embodiment, and the description thereof is omitted. As shown in Figs. 8A to 8E, in the electrode pattern of the second embodiment, Upper electrode 220, in the lower part The intersection portion 203 of the pole 21 , has the same number of openings 222 as in the first embodiment, and in the second embodiment, the opening portion 222 is smaller than the opening portion 122 of the first embodiment. As shown in FIGS. 8D and 8E, the width of the upper electrode 22 and the width W! 2 of the lower electrode 210 are both formed to be 4.3 mm, the gap D2 between the adjacent upper electrodes 220, and between the adjacent lower electrodes 210. The gap D22 is 0.3 mm. Further, the opening portion 22 of the upper electrode 120 is formed by a rectangular opening j with a width W23 of 1.0 mm in the X direction and a width W24 of the Y direction of 〇8 mm. Further, the width of the electrode portion between the adjacent opening portions 222 in the X direction is Μ. 18 201250562 and the width w26 of the Y direction are the gap D22 between the upper electrode 2 and the lower electrode 21, and the gap D22 between the upper electrode 2 and the lower electrode 21〇. That is, at the intersection portion 2〇3 of one place, the (four) open 0 portion 222 is formed in the upper electrode 220, and the opening portion 222 is arranged at a constant interval in four rows and three columns. In the electrode pattern of the touch panel 2〇1 of the second embodiment, it is understood that the mesh pattern of the electrode pattern is reduced as compared with the electrode pattern of the comparative example. Further, since the opening portion 222 which is smaller than that of the first embodiment is used, the entire electric pattern can be made into a relatively small pattern, and the effect of reducing the visible phenomenon of the grid pattern can be improved. Third Embodiment Next, the third embodiment of the present month is shown in the figure from the side of the touch surface to view the touch panel 3 (the schematic diagram of the electrode pattern of the U (ie, the upper electrode and the lower electrode) In addition, the pattern of the upper electrode 320 is displayed on the first side, and the pattern of the lower electrode is shown in the 9th C. Further, a partial enlarged view of the upper electrode 32A of the 9th image is shown in FIG. A part of the enlarged view of the lower electrode 31A of Fig. 9C is shown. The same reference numerals are attached to the same components as those of the first embodiment, and the description thereof will be omitted. As shown in Figs. 9A to 9E, In the electrode pattern of the third embodiment, the point at which the upper electrode 320' is overlapped with the lower electrode, for example, the plural opening #322 is formed, which is the same as that of the first embodiment, and in the third embodiment, In the intersection portion 303, an opening portion 312 is also formed in the lower electrode 31. Specifically, as shown in FIGS. 9D and 9E, the width W" of the upper electrode 32" and the width να of the lower electrode 31" are both Forming 4 3mm, adjacent to the upper gap 19 201250562 between the electrodes 320 D31 and adjacent The gap d32 between the turns of the electrode 31 is 0.3 mm. Further, the opening 322 of the upper electrode 320 is formed by a rectangular opening having a width W33 in the X direction of 1.7 mm and a width W34 in the Y direction of 2. mm. The width W35 in the X direction and the width W36 in the Y direction of the electrode portion between the adjacent opening portions 322 are 0.3 mm', and the gap D3| between the upper electrode 32 and the gap D3 of the lower electrode 310 is uniform. In the intersection portion 3〇3, four openings 322 are formed in the upper electrode 320, and the openings 322 are arranged in two rows and two columns at a predetermined interval. Further, as shown in Fig. 9E, 3〇3, an opening portion 312 having the same shape and size of four rows of two rows and two columns is formed in a region corresponding to the lower electrode 310 of the opening portion 322 of the upper electrode 320. The opening portion 312 of the lower electrode 310 is X. The direction width W37 is formed by a rectangular opening having a width W4 mm and a width W38 of 0.6 mm in the Y direction. Further, in the arrangement of the two rows of the parent two columns, the X direction of the electrode portion between the adjacent opening portions 312 in the X direction and The width W39 in the Y direction is 0.3 mm, and the gap D between the upper electrode 320 and the gap D of the lower electrode 31 D Further, the width w of the electrode portion between the groups of the openings 312 of the two rows and the X2 columns adjacent in the γ direction is called the positive integer multiple of the gap between the upper electrode 320 and the lower electrode 31〇. (i.e., 3 times) In the electrode pattern of the touch panel 3〇1 of the third embodiment, it can be seen that the mesh pattern of the electrode pattern is reduced as compared with the electrode pattern of the comparative example. The opening portion 322 of the electrode 320 and the opening portion 3丨2' of the lower electrode 31〇 can make the electrode pattern as a fine pattern, thereby achieving a visual pattern, and improving the visible effect of the grid pattern. . 20 201250562 Fourth Embodiment Next, a fourth embodiment of the present invention is a schematic view showing an electrode pattern of the touch panel 401 viewed from the side of the touch surface (that is, a schematic diagram of an electrode pattern in which the upper electrode and the lower electrode overlap). . Further, the graph of the upper electrode 420 is shown in the figure, and the graph of the lower electrode is shown in the graph. Further, a partial enlarged view of the electrode pattern of the first (A) diagram is shown in Fig. 1GD. The same reference numerals are given to the same components as those of the first embodiment, and the description thereof is omitted. As shown in FIGS. 10A to 10D, in the fourth embodiment, the electrode pattern is the same as the upper electrode 42A, and the portion intersecting the lower electrode, for example, the complex opening portion 422 is the same as the tree embodiment. On the other hand, in the fourth embodiment, both end edges (terminals) of the upper electrode 420 are formed in a comb shape. As shown by =_, at the edge of the upper electrode, the protrusion portion 425 in the X direction is formed in a certain direction along the Y direction, TM is over; the edge of the upper electrode 42° of if5 ' is comb-like. Formed on the adjacent end edge, the electrode portion extending between the upper electrode 420 in the Y direction and the direction of the upper electrode 420 is formed along the X side of the electrode portion ===: surface: the upper portion of the fourth embodiment Electrode · Example, with respect to the first embodiment, about the end portion of the lower electrode, the portion of the protrusion is still the same (i.e., opposite, formed in the upper portion; pole; =: 21 201250562 to the width W4i A square opening having a width W42 of 0.96 mm and a Y direction of 〇.96 mm is formed. Further, the width W43 of the electrode portion between the adjacent opening portions 422 and the width W44 of the Y direction are 0.3 mm, and the upper electrode The gap between the gap D4I and the lower electrode 410 of 420 is the same. Further, at the intersection portion 403 of one portion, nine openings 422 are formed in the upper electrode 420. Further, in the electrode pattern of the fourth embodiment, An example of the opening portion 422 is also formed in the region of the upper electrode 420 between the lower electrodes 410. In the electrode pattern of the touch panel 401 of the fourth embodiment, it is understood that the electrode pattern is reduced as compared with the pattern of the comparative example. The grid pattern is visible, especially compared to the first and second implementations. For example, since the edge of the upper electrode 420 has a comb-like shape, the gap between the upper electrodes 420 seems to have a visual effect corresponding to the structure of the opening 422, so that the edge of the upper electrode 420 can be formed. The outline is difficult to be obvious. Therefore, the entire electrode pattern can be visually identical', and the effect of reducing the visible phenomenon of the grid pattern can be improved. Further, as shown in Fig. E, the upper electrode 470' can also be used. Only one of the edges is comb-shaped, and the other is linear instead of the case where the upper electrode 42 has a comb-like shape as shown in Fig. 10D. Further, the projection portion 425 has a projection length not Further, the length may be different, and the comb-tooth shape may be asymmetrical at both end edges of the upper electrode. Further, the effect of each of the above embodiments may be exhibited by appropriate combination. The present invention can be utilized in mutual electrostatic capacitance type sensing, in the touch panel, a mutual capacitive touch panel at a position on a panel touched by an object such as a finger, can be utilized for carrying a smart phone or an electronic book. The electronic device of the touch panel represented by the reading machine (e-book 22 201250562 terminal), a personal computer, etc. The present invention is fully described in relation to the preferred embodiment with reference to the additional drawings, and is familiar to those skilled in the art. It is to be understood that various modifications and changes can be made without departing from the scope of the invention as set forth in the appended claims. The Japanese Patent Application No. The disclosure of the specification, the drawings, and the claims of the present application is incorporated herein by reference in its entirety. Schematic diagram of the electrode pattern of the panel. Fig. 2 is a view showing the structure of the electrode lamination direction of the touch panel of the reference example of Fig. 1. Fig. 3 is a view showing an electrode pattern of a touch panel according to an embodiment of the present invention. Fig. 4 is a view showing the structure of the electrode stacking direction of the touch panel of the embodiment of Fig. 3. Fig. 5 is a view showing an electrode pattern of a touch panel according to a modification of the embodiment of the present invention. Fig. 6A is a schematic view showing an electrode pattern of a touch panel of a reference example. Fig. 6B is a schematic view showing the pattern of the upper electrode of the touch panel of the reference example. Fig. 6C is a schematic view showing the pattern of the lower electrode of the touch panel of the reference example. 23 201250562 FIG. 7A is a schematic diagram of an electrode pattern of the touch panel of the first embodiment. Fig. 7B is a view showing the pattern of the upper electrode of the touch panel of the first embodiment. Fig. 7C is a schematic view showing the pattern of the lower electrode of the touch panel of the first embodiment. Fig. 7D is a partially enlarged view showing the pattern of the upper electrode of the first embodiment. Fig. 7E is a partially enlarged view showing the pattern of the lower electrode of the first embodiment. Fig. 8A is a schematic view showing an electrode pattern of the touch panel of the second embodiment. Fig. 8B is a schematic view showing the pattern of the upper electrode of the touch panel of the second embodiment. Fig. 8C is a schematic view showing the pattern of the lower electrode of the touch panel of the second embodiment. Fig. 8D is a partially enlarged view showing the pattern of the upper electrode of the second embodiment. Fig. 8E is a partially enlarged view showing the pattern of the lower electrode of the second embodiment. Fig. 9A is a schematic view showing an electrode pattern of the touch panel of the third embodiment. Fig. 9B is a schematic view showing the pattern of the upper electrode of the touch panel of the third embodiment. Fig. 9C is a schematic view showing the pattern of the lower electrode of the touch panel of the third embodiment. Fig. 9D is a partially enlarged view showing the pattern of the upper electrode of the third embodiment. Fig. 9E is a partially enlarged view showing the pattern of the lower electrode of the third embodiment. Fig. 10A is a schematic view showing an electrode pattern of the touch panel of the fourth embodiment. Fig. 10B is a schematic view showing the pattern of the upper electrode of the touch panel of the fourth embodiment 24 201250562. Fig. 10C is a view showing the pattern of the lower electrode of the touch panel of the fourth embodiment. Fig. 10D is a partially enlarged view of the electrode pattern of the fourth embodiment. Fig. 10E is a partially enlarged view of the electrode pattern of the modification of the fourth embodiment. Figure 11 is a schematic diagram of an electrode pattern of a conventional touch panel. Fig. 12 is a schematic cross-sectional view showing the electrode lamination direction of the conventional touch panel of Fig. 11. [Description of main component symbols] Bu 3 Bu 6 Bu 101... Touch panel 2, 502... Objects 10, 40, 110, 210 ·. Lower electrodes 11, 21, 41, 51 ... gaps 20, 50, 120, 220... upper electrode 33, 103, 203, 303, 403. · intersection portion 42, 52, 122, 222. · opening portion 53, 54 ... line width 105.. frame-shaped terminal portion 201, 301, 401, 501... touch panel 310, 410, 510... touch panel 312, 322, 422 ... opening portion 320, 420, 470, 520... upper electrode 425.. Part 25 201250562 505... Terminal part D" 'D2I ' D3I ' 〇41 The gap between the upper electrodes D|2 ' D22 ' D32···The gap between the lower electrodes L...Power line
Wii ’ ’ Wi..上部電極之寬度 W|2 ’ W32···下部電極之寬度Wii ’ ’ Wi.. width of upper electrode W|2 ′ W32···width of lower electrode
Wn ’ W23 ’ ％ ％開口部之χ方向之寬度Wn ’ W23 ’ % % width of the opening
Wd ’ W34 ’ W38 ’ W42…開口部之γ方向之寬度Wd ’ W34 ’ W38 ’ W42... width of the opening in the γ direction
Wi5 W25 ’ λ^35 ’ W39 ’ W43" .開口部間之電極部份之χ方向的寬度 26 ~36 ’ W39，W44..·開口部間之電極部份之γ方向的寬度 W4〇···開口部之群組間之電極部份的寬度 X ’ γ· ·方向 26Wi5 W25 ' λ^35 ' W39 ' W43" . The width of the electrode portion between the openings is 26 ~ 36 ' W39, W44.. · The width of the electrode portion between the openings in the γ direction W4 〇 · · The width of the electrode portion between the groups of the openings X ' γ · · direction 26