CN106325586A - Touch panel - Google Patents

The touch panel comprises a substrate and a patterned transparent conductive layer. The substrate is provided with a visible area and a peripheral area, and the visible area comprises a touch electrode area and a wiring area. The patterned transparent conductive layer is disposed on the substrate and includes a plurality of touch electrodes and a plurality of wires. The touch electrode is at least partially arranged in the touch electrode area, and the routing is at least partially arranged in the routing area. Each of the traces is connected to at least one of the touch electrodes, an area of the patterned transparent conductive layer in the touch electrode region has a first percentage compared to an area of the touch electrode region, an area of the patterned transparent conductive layer in the routing region has a second percentage compared to the area of the routing region, and a difference between the first percentage and the second percentage is less than 10%.

触控面板touch panel

技术领域technical field

本发明是关于一种触控面板，尤指一种单层式(one layer sensor，OLS)触控面板。The present invention relates to a touch panel, in particular to a one layer sensor (OLS) touch panel.

背景技术Background technique

触控面板由于具有人机互动的特性，已被广泛应用于仪器的外埠输入界面上。近年来，随着消费性电子产品的应用面发展越来越广，将触控功能与显示器结合而形成触控显示面板的应用产品也越来越多，包括行动电话(mobile phone)、卫星导航系统(GPS navigator system)、平板电脑(tablet PC)、个人数位助理(PDA)以及笔记型电脑(laptop PC)等。Due to the characteristics of human-computer interaction, the touch panel has been widely used in the external input interface of the instrument. In recent years, with the development of more and more applications of consumer electronics products, there are more and more application products that combine touch functions with displays to form touch display panels, including mobile phones, satellite navigation system (GPS navigator system), tablet PC (tablet PC), personal digital assistant (PDA) and notebook computer (laptop PC), etc.

目前触控面板的技术发展非常多样化，较常见的技术包括电阻式、电容式以及光学式等。另一方面，在结构上较常见的则有所谓架桥式(例如SITO设计)、双层式(例如DITO设计)以及单层式(one layer sensor，OLS)等。如图1所示，传统单层式触控面板100具有一触控信号传递电极120T以及与其对应设置的多个触控信号接收电极120R。由于触控信号传递电极120T与触控信号接收电极120R是由同一导电材料层进行图案化而一并形成于透明基板110的可视触控区AA中，故触控信号传递电极120T与触控信号接收电极120R是彼此分离而未互相重叠。触控信号接收电极120R是沿触控信号传递电极120T的延伸方向排列设置且彼此电性绝缘，各触控信号接收电极120R需通过信号走线130与其连接用以将接收到的触控信号传递至信号处理器件(未图式)用以进行触控点的计算。由于部分的信号走线130必须延伸至可视触控区AA中藉以与触控信号接收电极120R连接，故部分的信号走线130亦须设置于可视触控区AA中。在传统单层式触控面板100的可视触控区AA中，信号走线130所在区域的开口率(未设置信号走线130的区域的比率)会与设置触控信号接收电极120R以及触控信号传递电极120T的区域的开口率(未设置触控信号接收电极120R以及触控信号传递电极120T的区域的比率)有很明显的差异(一般相差约30％以上)，而此开口率不一致的状况会造成在整体视觉上产生可视余影，对于触控面板的视觉品质产生负面影响。Currently, the development of touch panel technology is very diverse, and the more common technologies include resistive, capacitive, and optical. On the other hand, the more common structures are so-called bridging type (such as SITO design), double-layer type (such as DITO design), and single-layer type (one layer sensor, OLS). As shown in FIG. 1 , the conventional single-layer touch panel 100 has a touch signal transmitting electrode 120T and a plurality of touch signal receiving electrodes 120R disposed corresponding thereto. Since the touch signal transmission electrode 120T and the touch signal reception electrode 120R are patterned by the same conductive material layer and formed together in the visible touch area AA of the transparent substrate 110, the touch signal transmission electrode 120T and the touch The signal receiving electrodes 120R are separated from each other without overlapping each other. The touch signal receiving electrodes 120R are arranged along the extending direction of the touch signal transmitting electrodes 120T and are electrically insulated from each other. Each touch signal receiving electrode 120R needs to be connected to it through the signal wire 130 to transmit the received touch signal. to a signal processing device (not shown) for calculation of touch points. Since part of the signal wires 130 must extend into the visible touch area AA to connect with the touch signal receiving electrodes 120R, part of the signal wires 130 must also be disposed in the visible touch area AA. In the visible touch area AA of the traditional single-layer touch panel 100, the aperture ratio of the area where the signal wiring 130 is located (the ratio of the area where the signal wiring 130 is not provided) will be compared with that where the touch signal receiving electrode 120R and the touch signal receiving electrode 120R are arranged. The aperture ratio of the area of the control signal transmission electrode 120T (the ratio of the area without the touch signal reception electrode 120R and the touch signal transmission electrode 120T) has a significant difference (generally, the difference is more than about 30%), and the aperture ratio is inconsistent. The situation will cause visual afterimages on the overall vision, which will have a negative impact on the visual quality of the touch panel.

发明内容Contents of the invention

本发明的主要目的之一在于提供一种触控面板，用同一个图案化透明导电层来形成触控电极与走线，并通过调整触控电极的设计使得可视区中触控电极所在的区域与走线所在的区域之间的开口率差异缩小，进而达到改善触控面板视觉品质的效果。One of the main purposes of the present invention is to provide a touch panel, which uses the same patterned transparent conductive layer to form the touch electrodes and traces, and adjusts the design of the touch electrodes so that the area where the touch electrodes are located in the visible area The difference in aperture ratio between the area and the area where the wiring is located is reduced, thereby achieving the effect of improving the visual quality of the touch panel.

为达上述目的，本发明之一实施例提供一种触控面板，包括一基板以及一图案化透明导电层。基板具有一可视区以及一周围区，周围区是位于可视区的至少一侧。可视区包括至少一触控电极区以及至少一走线区。图案化透明导电层设置于基板上并至少位于可视区中。图案化透明导电层包括多个触控电极以及多条走线。触控电极至少部分设置于可视区的触控电极区中。走线至少部分设置于可视区的走线区中。各走线是与至少一个触控电极相连。于触控电极区中的图案化透明导电层的面积与触控电极区的面积相比具有一第一百分比，于走线区中的图案化透明导电层的面积与走线区的面积相比具有一第二百分比，第一百分比与第二百分比之间的差是小于10％。To achieve the above purpose, an embodiment of the present invention provides a touch panel, including a substrate and a patterned transparent conductive layer. The substrate has a viewing area and a surrounding area, and the surrounding area is located at least one side of the viewing area. The visible area includes at least one touch electrode area and at least one wiring area. The patterned transparent conductive layer is disposed on the substrate and at least located in the visible area. The patterned transparent conductive layer includes a plurality of touch electrodes and a plurality of wires. The touch electrodes are at least partially disposed in the touch electrode area of the visible area. The routing is at least partially disposed in the routing area of the visible area. Each trace is connected to at least one touch electrode. The area of the patterned transparent conductive layer in the touch electrode area has a first percentage compared with the area of the touch electrode area, and the area of the patterned transparent conductive layer in the wiring area is compared with the area of the wiring area The difference between the first percentage and the second percentage is less than 10% compared to having a second percentage.

在本发明其中一实施例的触控面板中，第一百分比与第二百分比之间的差是小于5％。In the touch panel according to one embodiment of the present invention, the difference between the first percentage and the second percentage is less than 5%.

在本发明其中一实施例的触控面板中，于触控电极区中未设置图案化透明导电层的区域面积与触控电极区的面积相比具有一第三百分比，于走线区中未设置图案化透明导电层的区域面积与走线区的面积相比具有一第四百分比，第三百分比与第四百分比之间的差是小于10％。In the touch panel according to one embodiment of the present invention, the area of the area where the patterned transparent conductive layer is not provided in the touch electrode area has a third percentage compared with the area of the touch electrode area, and in the wiring area The area where the patterned transparent conductive layer is not provided has a fourth percentage compared with the area of the wiring area, and the difference between the third percentage and the fourth percentage is less than 10%.

在本发明其中一实施例的触控面板中，各触控电极具有多个开口，于各触控电极中的开口的区域面积与触控电极外围轮廓所形成的区域面积相比具有一第五百分比，且第五百分比与第四百分比之间的差是小于10％。In the touch panel according to one embodiment of the present invention, each touch electrode has a plurality of openings, and the area area of the openings in each touch electrode has a fifth ratio compared with the area formed by the outer contour of the touch electrode. percentage, and the difference between the fifth percentage and the fourth percentage is less than 10%.

在本发明其中一实施例的触控面板中，触控电极与走线是设置于同一平面上。In the touch panel according to one embodiment of the present invention, the touch electrodes and the traces are arranged on the same plane.

在本发明其中一实施例的触控面板中，触控电极包括触控信号传递电极与触控信号接收电极。In the touch panel according to one embodiment of the present invention, the touch electrodes include touch signal transmitting electrodes and touch signal receiving electrodes.

在本发明其中一实施例的触控面板中，图案化透明导电层更包括至少一辅助电极，设置于触控电极区中，辅助电极系设置于触控电极之间，且辅助电极是与触控电极电性分离。In the touch panel according to one embodiment of the present invention, the patterned transparent conductive layer further includes at least one auxiliary electrode disposed in the touch electrode area, the auxiliary electrode is disposed between the touch electrodes, and the auxiliary electrode is in contact with the touch electrodes. The control electrodes are electrically separated.

在本发明其中一实施例的触控面板中，辅助电极为电性浮置(floating)电极。In the touch panel according to one embodiment of the present invention, the auxiliary electrodes are electrically floating electrodes.

在本发明其中一实施例的触控面板中，可视区包括多个触控电极区，且走线区是位于相邻的两触控电极区之间。In the touch panel according to one embodiment of the present invention, the visible area includes a plurality of touch electrode areas, and the wiring area is located between two adjacent touch electrode areas.

在本发明其中一实施例的触控面板中，图案化透明导电层是由一透明导电材料所构成，透明导电材料的透光度是大于或等于80％。In the touch panel according to one embodiment of the present invention, the patterned transparent conductive layer is made of a transparent conductive material, and the light transmittance of the transparent conductive material is greater than or equal to 80%.

在本发明其中一实施例的触控面板中，透明导电材料包括金属氧化物透明导电材料、金属氧化物透明导电材料与薄金属层堆叠的多层材料或纳米导电材料。In the touch panel according to one embodiment of the present invention, the transparent conductive material includes a metal oxide transparent conductive material, a multi-layer material stacked with a metal oxide transparent conductive material and a thin metal layer, or a nano conductive material.

在本发明其中一实施例的触控面板中，第二百分比是藉于50％～75％之间。In the touch panel according to one embodiment of the present invention, the second percentage is between 50% and 75%.

在本发明其中一实施例的触控面板中，触控电极包括多个第一电极以及多个第二电极。第一电极是沿一第一方向延伸，且第一电极是沿一第二方向上重复排列设置，各第一电极具有多个中空区沿第一方向排列。第二电极设置于各第一电极于第二方向上的两侧，且各第二电极是延伸以部分设置于对应的第一电极的一个中空区中。In the touch panel according to one embodiment of the present invention, the touch electrodes include a plurality of first electrodes and a plurality of second electrodes. The first electrodes extend along a first direction, and the first electrodes are repeatedly arranged along a second direction, and each first electrode has a plurality of hollow areas arranged along the first direction. The second electrodes are disposed on both sides of each first electrode in the second direction, and each second electrode is extended to be partially disposed in a hollow area of the corresponding first electrode.

附图说明Description of drawings

图1绘示了传统单层式触控面板的示意图。FIG. 1 illustrates a schematic diagram of a conventional single-layer touch panel.

图2绘示了本发明第一实施例的触控面板的示意图。FIG. 2 is a schematic diagram of a touch panel according to a first embodiment of the present invention.

图3绘示了本发明第一实施例的触控面板省略触控电极的开口的示意图。FIG. 3 is a schematic diagram of the touch panel omitting the openings of the touch electrodes according to the first embodiment of the present invention.

图4绘示了图2的部分区域放大示意图。FIG. 4 shows an enlarged schematic diagram of a part of the area in FIG. 2 .

图5绘示了本发明第一实施例的触控面板中触控电极的排列状况示意图。FIG. 5 is a schematic diagram illustrating the arrangement of the touch electrodes in the touch panel according to the first embodiment of the present invention.

图6绘示了本发明第一实施例的触控面板的部分区域剖面示意图。FIG. 6 is a schematic cross-sectional view of a partial area of the touch panel according to the first embodiment of the present invention.

图7绘示了本发明第二实施例的触控面板的示意图。FIG. 7 is a schematic diagram of a touch panel according to a second embodiment of the present invention.

图8绘示了本发明第三实施例的触控面板的示意图。FIG. 8 is a schematic diagram of a touch panel according to a third embodiment of the present invention.

附图标号Reference number

10 基板10 Substrate

20 图案化透明导电层20 patterned transparent conductive layer

20A 第一氧化物透明导电层20A first oxide transparent conductive layer

20B 薄金属层20B thin metal layer

20C 第二氧化物透明导电层20C second oxide transparent conductive layer

21 触控电极21 Touch electrodes

21A 第一电极21A First electrode

21B 第二电极21B Second electrode

21H 中空区21H hollow area

22 走线22 traces

23 辅助电极23 auxiliary electrodes

24 辅助走线24 Auxiliary wiring

100 触控面板100 touch panel

110 透明基板110 transparent substrate

120R 触控信号接收电极120R touch signal receiving electrode

120T 触控信号传递电极120T touch signal transmission electrode

130 信号走线130 signal traces

201-203 触控面板201-203 touch panel

AA 可视触控区AA Visual Touch Area

H 开口H opening

R1 可视区R1 viewport

R2 周围区Area around R2

R3 触控电极区R3 Touch electrode area

R4 走线区R4 trace area

X 第二方向X second direction

Y 第一方向Y first direction

Z 垂直方向Z vertical direction

具体实施方式detailed description

为使熟习本发明所属技术领域的一般技艺者能更进一步了解本发明，下文特列举本发明的数个较佳实施例，并配合所附图式，详细说明本发明的构成内容。In order to enable those skilled in the technical field of the present invention to further understand the present invention, several preferred embodiments of the present invention are enumerated below, together with the attached drawings, the composition of the present invention is described in detail.

请参考图2至图6。图2绘示了本发明第一实施例的触控面板的示意图，图3绘示了本实施例的触控面板省略触控电极的开口的示意图，图4绘示了图2的部分区域放大示意图，图5绘示了本实施例的触控面板中触控电极的排列状况示意图，图6绘示了本实施例的触控面板的部分区域剖面示意图。为了方便说明，本发明的各图式仅为示意以更容易了解本发明，其详细的比例可依照设计的需求进行调整。如图1与图3所示，本实施例提供一种触控面板201，包括一基板10以及一图案化透明导电层20。基板10具有一可视区R1以及一周围区R2，周围区R2是位于可视区R1的至少一侧。可视区R1包括至少一触控电极区R3以及至少一走线区R4。在本实施例中，基板10可包括玻璃基板、塑胶基板、蓝宝石基板、透明陶瓷基板、玻璃膜片、塑胶膜片、透光覆盖板、显示器的基板、偏光片或其他适合材料或应用的基板。图案化透明导电层20设置于基板10上并位于可视区R1以及周围区R2中，但本发明并不以此为限。在本发明的其他实施例中，当触控面板大型化或是做减少信号导接垫数目设计时，可以仅在可视区R1设置图案化透明导电层20，另外在周围区R2设置多个金属导线与图案化透明导电层20中各触控电极分别电连接，降低整体导电层的电阻值，或是利用特定金属导线将多个特定位置的触控电极电连接以减少信号导接垫的数目。在本实施例中，图案化透明导电层20是由一透明导电材料所构成，换句话说，图案化透明导电层20可由上述的透明导电材料经由图案化制程例如微影制程、转印制程等方式形成于基板10上。上述的透明导电材料的透光度是大于或等于80％，且较佳是大于或等于85％，但并不以此为限。上述的透光度是在可见光的波长范围下进行量测，例如在波长为550纳米的状况下，但并不以此为限。此外，上述的透明导电材料可为单层或多层导电层所堆叠而成的结构。举例来说，上述的透明导电材料可包括金属氧化物透明导电材料、金属氧化物透明导电材料与薄金属层堆叠的多层材料、纳米导电材料例如纳米银丝或纳米碳管或其他适合的透明导电材料。上述的金属氧化物透明导电材料可包括氧化铟锡(indium tin oxide,ITO)、氧化铟锌(indium zinc oxide,IZO)或氧化铝锌(aluminum zinc oxide,AZO)，但并不以此为限。上述的金属氧化物透明导电材料与薄金属层堆叠的多层材料可包括金属氧化物透明导电材料/薄金属层的双层结构、金属氧化物透明导电材料/薄金属层/金属氧化物透明导电材料的三层结构(例如ITO/Al/ITO结构)或其他多层结构。Please refer to Figure 2 to Figure 6. FIG. 2 is a schematic diagram of the touch panel according to the first embodiment of the present invention, FIG. 3 is a schematic diagram of the touch panel according to this embodiment omitting the opening of the touch electrodes, and FIG. 4 is an enlarged partial area of FIG. 2 Schematic diagrams, FIG. 5 shows a schematic diagram of the arrangement of the touch electrodes in the touch panel of this embodiment, and FIG. 6 shows a schematic cross-sectional view of some areas of the touch panel of this embodiment. For the convenience of description, the drawings of the present invention are only schematic diagrams for easier understanding of the present invention, and the detailed proportions thereof can be adjusted according to design requirements. As shown in FIG. 1 and FIG. 3 , the present embodiment provides a touch panel 201 including a substrate 10 and a patterned transparent conductive layer 20 . The substrate 10 has a visible area R1 and a surrounding area R2, and the surrounding area R2 is located on at least one side of the visible area R1. The visible area R1 includes at least one touch electrode area R3 and at least one wiring area R4. In this embodiment, the substrate 10 may include a glass substrate, a plastic substrate, a sapphire substrate, a transparent ceramic substrate, a glass film, a plastic film, a light-transmitting cover plate, a display substrate, a polarizer, or other substrates suitable for materials or applications. . The patterned transparent conductive layer 20 is disposed on the substrate 10 and located in the visible region R1 and the surrounding region R2, but the invention is not limited thereto. In other embodiments of the present invention, when the size of the touch panel is increased or the number of signal pads is reduced, the patterned transparent conductive layer 20 can be provided only in the visible area R1, and more than one can be provided in the surrounding area R2 The metal wires are respectively electrically connected to the touch electrodes in the patterned transparent conductive layer 20 to reduce the resistance value of the overall conductive layer, or use specific metal wires to electrically connect multiple touch electrodes at specific positions to reduce the number of signal pads. number. In this embodiment, the patterned transparent conductive layer 20 is made of a transparent conductive material. In other words, the patterned transparent conductive layer 20 can be made of the above-mentioned transparent conductive material through a patterning process such as a lithography process and a transfer process. etc. are formed on the substrate 10 . The light transmittance of the above-mentioned transparent conductive material is greater than or equal to 80%, and preferably greater than or equal to 85%, but not limited thereto. The above-mentioned light transmittance is measured in the wavelength range of visible light, for example, at a wavelength of 550 nm, but it is not limited thereto. In addition, the above-mentioned transparent conductive material may be a structure formed by stacking a single layer or multiple conductive layers. For example, the above-mentioned transparent conductive materials may include metal oxide transparent conductive materials, multi-layer materials stacked with metal oxide transparent conductive materials and thin metal layers, nano conductive materials such as nano silver wires or carbon nano tubes, or other suitable transparent conductive materials. conductive material. The above-mentioned metal oxide transparent conductive material may include indium tin oxide (ITO), indium zinc oxide (IZO) or aluminum zinc oxide (AZO), but not limited thereto . The above-mentioned multilayer material stacked with metal oxide transparent conductive material and thin metal layer may include a double-layer structure of metal oxide transparent conductive material/thin metal layer, metal oxide transparent conductive material/thin metal layer/metal oxide transparent conductive Three-layer structure of materials (such as ITO/Al/ITO structure) or other multi-layer structures.

图案化透明导电层20包括多个触控电极21以及多条走线22。触控电极21至少部分设置于可视区R1的触控电极区R3中，走线22至少部分设置于可视区R1的走线区R4中。各走线22是与至少一个触控电极21相连，用以传递或接受信号。在本实施例中，触控电极21未设置于走线区R4中，而走线22亦未设置于触控电极区R3中，但并不以此为限。于触控电极区R3中的图案化透明导电层20的面积与触控电极区R3的面积相比具有一第一百分比，于走线区R4中的图案化透明导电层20的面积与走线区R4的面积相比具有一第二百分比，第一百分比与第二百分比之间的差(两者相减的绝对值)是小于10％，且较佳是小于5％。换句话说，图案化透明导电层20在触控电极区R3与走线区R4中的图案密度是相当接近，藉此可避免因触控电极区R3与走线区R4之间开口率不一致而导致在整体视觉上产生可视余影的问题，进而达到提升触控面板201的视觉品质的目的。值得说明的是，在本发明中所指图案化透明导电层20的面积可指图案化透明导电层20的图案轮廓面积，例如当以纳米导电材料形成图案化透明导电层20时，图案化透明导电层20的面积即是代表在图案化透明导电层20中位于边缘的纳米导电材料所形成的图案轮廓所包围的区域面积。The patterned transparent conductive layer 20 includes a plurality of touch electrodes 21 and a plurality of wires 22 . The touch electrodes 21 are at least partially disposed in the touch electrode region R3 of the visible region R1 , and the traces 22 are at least partially disposed in the trace region R4 of the visible region R1 . Each wire 22 is connected to at least one touch electrode 21 for transmitting or receiving signals. In this embodiment, the touch electrodes 21 are not disposed in the wiring area R4, and the wirings 22 are not disposed in the touch electrode area R3, but the present invention is not limited thereto. The area of the patterned transparent conductive layer 20 in the touch electrode region R3 has a first percentage compared with the area of the touch electrode region R3, and the area of the patterned transparent conductive layer 20 in the wiring region R4 is equal to the area of the touch electrode region R3. The area of the routing region R4 has a second percentage, and the difference between the first percentage and the second percentage (the absolute value of the subtraction of the two) is less than 10%, and is preferably less than 5%. In other words, the pattern density of the patterned transparent conductive layer 20 in the touch electrode region R3 and the wiring region R4 is quite close, thereby avoiding the inconsistency of the aperture ratio between the touch electrode region R3 and the wiring region R4. This leads to the problem of visible afterimages in the overall vision, thereby achieving the purpose of improving the visual quality of the touch panel 201 . It is worth noting that the area of the patterned transparent conductive layer 20 referred to in the present invention may refer to the pattern outline area of the patterned transparent conductive layer 20, for example, when the patterned transparent conductive layer 20 is formed with a nano-conductive material, the patterned transparent conductive layer The area of the conductive layer 20 represents the area surrounded by the outline of the pattern formed by the nano conductive material at the edge of the patterned transparent conductive layer 20 .

举例来说，本实施例的第一百分比与第二百分比可分别介于50％至75％之间，且第一百分比较佳是大体上与第二百分比相等，但考量制程变异的状况下，第一百分比与第二百分比两者的差异值是小于10％，且较佳是小于5％，例如第一百分比可约为62％，而第二百分比可约为60％，两者相差值为2％，但并不以此为限。另一方面，于触控电极区R3中未设置图案化透明导电层20的区域面积与触控电极区R3的面积相比具有一第三百分比(亦可视为触控电极区R3的开口率)，于走线区R4中未设置图案化透明导电层20的区域面积与走线区R4的面积相比具有一第四百分比(亦可视为走线区R4的开口率)，第三百分比与第四百分比之间的差是小于10％，且较佳是小于5％。在本实施例中，上述的第一百分比与第三百分比的和大体上为1，而上述的第二百分比与第四百分比的和大体上为1，但并不以此为限。换句话说，触控电极区R3与走线区R4的开口率(指未设置图案化透明导电层20的区域面积比率)可分别介于25％至50％之间，但并不以此为限。For example, the first percentage and the second percentage in this embodiment can be between 50% and 75% respectively, and the first percentage is preferably substantially equal to the second percentage, However, considering process variation, the difference between the first percentage and the second percentage is less than 10%, and preferably less than 5%. For example, the first percentage can be about 62%, and The second percentage may be about 60%, with a difference of 2%, but not limited thereto. On the other hand, the area of the area where the patterned transparent conductive layer 20 is not provided in the touch electrode region R3 has a third percentage compared with the area of the touch electrode region R3 (which can also be regarded as the area of the touch electrode region R3 Aperture ratio), the area of the area where the patterned transparent conductive layer 20 is not provided in the routing region R4 has a fourth percentage compared with the area of the routing region R4 (also can be regarded as the opening ratio of the routing region R4) , the difference between the third percentage and the fourth percentage is less than 10%, and preferably less than 5%. In this embodiment, the sum of the above-mentioned first percentage and the third percentage is substantially 1, and the sum of the above-mentioned second percentage and the fourth percentage is substantially 1, but not This is the limit. In other words, the aperture ratios of the touch electrode region R3 and the routing region R4 (referring to the area ratio of the area without the patterned transparent conductive layer 20 ) can be between 25% and 50%, but this is not a limitation. limit.

进一步说明，在本实施例中，各触控电极21具有多个开口H，于各触控电极21中的开口H的区域面积与触控电极21外围轮廓所形成的区域面积相比具有一第五百分比，且第五百分比与上述的第四百分比之间的差是小于10％，且较佳是小于5％。换句话说，通过于各触控电极21中设置开口H并控制开口H的大小与形状，可使得各触控电极21本身的开口率与走线区R4的开口率之间的差异缩小，进而达到视觉品质的目的。如图2与图3所示，当各触控电极21未设置开口H时(如图3的状况)，于触控电极区R3以及走线区R4之间在图案化透明导电层20以外区域的开口率上有很明显的差异(一般未设置开口H时，触控电极区R3与走线区R4的开口率相差值是大于30％)，而于各触控电极21中设置开口H并控制开口H的形状与大小，可使得触控电极区R3中开口H的形状与大小与走线区R4中各走线22之间的间隙相似，降低因图案化透明导电层20在可视区R1中不同区域的形状不同所导致的视觉不均匀状况，进而提升触控面板201的视觉品质。To further illustrate, in this embodiment, each touch electrode 21 has a plurality of openings H, and the area area of the opening H in each touch electrode 21 has a 1st second compared with the area formed by the outer contour of the touch electrode 21. five percent, and the difference between the fifth percent and the above-mentioned fourth percent is less than 10 percent, and preferably less than 5 percent. In other words, by setting the opening H in each touch electrode 21 and controlling the size and shape of the opening H, the difference between the aperture ratio of each touch electrode 21 itself and the aperture ratio of the wiring region R4 can be reduced, and further achieve the purpose of visual quality. As shown in FIG. 2 and FIG. 3 , when each touch electrode 21 is not provided with an opening H (as in FIG. 3 ), the area outside the patterned transparent conductive layer 20 is between the touch electrode area R3 and the wiring area R4. There is a significant difference in the aperture ratio (generally, when the opening H is not provided, the difference between the aperture ratios of the touch electrode region R3 and the wiring region R4 is greater than 30%), and the opening H is set in each touch electrode 21 and Controlling the shape and size of the opening H can make the shape and size of the opening H in the touch electrode region R3 similar to the gap between the traces 22 in the trace region R4, reducing the gap between the patterned transparent conductive layer 20 in the visible area. The visual unevenness caused by the different shapes of different regions in R1 further improves the visual quality of the touch panel 201 .

此外，如图2与图5所示，本实施例的触控电极21可包括多个第一电极21A以及多个第二电极21B。第一电极21A是沿一第一方向Y延伸，且第一电极21是沿一第二方向X上重复排列设置，各第一电极21A具有多个中空区21H沿第一方向Y排列。第二电极21B设置于各第一电极21A于第二方向X上的两侧，且各第二电极21B是延伸以部分设置于对应的第一电极21A的一个中空区21H中，但本发明的触控电极21并不以上述的排列方式为限。在本实施例中，第一电极21A与第二电极21B可分别为一触控信号接收电极以及一触控信号传递电极，或者第一电极21A与第二电极21B亦可分别为一触控信号传递电极以及一触控信号接收电极，但并不以此为限。换句话说，触控电极21可包括触控信号传递电极与触控信号接收电极，用以互相搭配进行一互电容式触控检测，但并不以此为限。在本发明的其他实施例中，亦可利用触控电极21进行自电容式触控检测。In addition, as shown in FIGS. 2 and 5 , the touch electrodes 21 of this embodiment may include a plurality of first electrodes 21A and a plurality of second electrodes 21B. The first electrodes 21A extend along a first direction Y, and the first electrodes 21 are arranged repeatedly along a second direction X, and each first electrode 21A has a plurality of hollow areas 21H arranged along the first direction Y. The second electrodes 21B are disposed on both sides of each first electrode 21A in the second direction X, and each second electrode 21B is extended to be partially disposed in a hollow area 21H of the corresponding first electrode 21A, but the present invention The arrangement of the touch electrodes 21 is not limited to the above arrangement. In this embodiment, the first electrode 21A and the second electrode 21B can be respectively a touch signal receiving electrode and a touch signal transmitting electrode, or the first electrode 21A and the second electrode 21B can also be respectively a touch signal A transmitting electrode and a touch signal receiving electrode, but not limited thereto. In other words, the touch electrode 21 may include a touch signal transmitting electrode and a touch signal receiving electrode to cooperate with each other to perform mutual capacitive touch detection, but it is not limited thereto. In other embodiments of the present invention, the touch electrodes 21 can also be used for self-capacitive touch detection.

此外，如图2与图4所示，在本实施例的触控面板201中，图案化透明导电层20可更包括至少一辅助电极(或可称为dummy electrode)23设置于触控电极区R3中，辅助电极23是设置于触控电极21之间，且辅助电极23是与触控电极21电性分离。在本实施例中，辅助电极23较佳可为电性浮置(floating)电极设置于第一电极21A与第二电极21B之间，也就是说辅助电极23较佳可未与任何器件电连接，但并不以此为限。辅助电极23可用以填补各触控电极21之间的空隙且提升触控电极区R3中有无设置触控电极21的区域间的视觉一致性，藉此降低触控电极21的轮廓明显度，达到更进一步提升视觉品质的效果。此外，本实施例的辅助电极23的形状与大小较佳是与位于走线区R4的走线22相似，藉此提升图案化透明导电层20在触控电极区R3与走线区R4之间的图形一致性。换句话说，位于触控电极区R3中的图案化透明导电层20包括了第一电极21A、第二电极21B以及辅助电极23，而上述的第一百分比(于触控电极区R3中的图案化透明导电层20的面积与触控电极区R3的面积相比的比值)即可由辅助电极23、第一电极21A以及第二电极21B的形状大小以及开口H的形状大小来进行调整与控制。In addition, as shown in FIG. 2 and FIG. 4 , in the touch panel 201 of this embodiment, the patterned transparent conductive layer 20 may further include at least one auxiliary electrode (or may be called a dummy electrode) 23 disposed in the touch electrode area In R3 , the auxiliary electrode 23 is disposed between the touch electrodes 21 , and the auxiliary electrode 23 is electrically separated from the touch electrode 21 . In this embodiment, the auxiliary electrode 23 is preferably an electrically floating electrode disposed between the first electrode 21A and the second electrode 21B, that is to say, the auxiliary electrode 23 is preferably not electrically connected to any device. , but not limited to this. The auxiliary electrode 23 can be used to fill in the gaps between the touch electrodes 21 and improve the visual consistency between the touch electrode 21 in the touch electrode region R3, thereby reducing the outline of the touch electrode 21, To achieve the effect of further improving the visual quality. In addition, the shape and size of the auxiliary electrode 23 in this embodiment are preferably similar to the wiring 22 located in the wiring area R4, so as to enhance the patterned transparent conductive layer 20 between the touch electrode area R3 and the wiring area R4 graphics consistency. In other words, the patterned transparent conductive layer 20 located in the touch electrode region R3 includes the first electrode 21A, the second electrode 21B and the auxiliary electrode 23, and the above-mentioned first percentage (in the touch electrode region R3 The ratio of the area of the patterned transparent conductive layer 20 to the area of the touch electrode region R3) can be adjusted by the shape and size of the auxiliary electrode 23, the first electrode 21A and the second electrode 21B and the shape of the opening H. control.

此外，如图2与图5所示，在本实施例中，可视区R1可包括多个触控电极区R3，而走线区R4可于第二方向X上位于相邻的两个触控电极区R3之间，但并不以此为限。由于本实施例的第一电极21A是于第一方向Y上由可视区R1的一边缘延伸至相对的另一边缘，故对应第一电极21A的走线可不需设置于可视区R1中。也就是说，设置于可视区R1的走线区R4中的走线22是对应连接至第二电极21B。值得说明的是，如图6所示，由于触控电极21、走线22以及辅助电极23均是设置于基板10上的图案化透明导电层20的一部分，故位于触控电极区R3的触控电极21与辅助电极23以及位于走线区R4的走线22均是设置于同一平面上，且触控电极21、走线22以及辅助电极23于垂直方向Z上均未互相重叠，而本实施例的触控面板201可被视为一单层式(one layer sensor，OLS)触控面板。也就是说，本实施例的触控电极21、走线22以及辅助电极23可通过图案化透明导电层20一并形成，藉此达到简化制程的效果。此外，本实施例的触控面板201可选择性地更包括一绝缘保护层(未绘示)形成于基板10上并覆盖触控电极21、走线22以及辅助电极23，但并不以此为限。In addition, as shown in FIG. 2 and FIG. 5 , in this embodiment, the visible area R1 may include a plurality of touch electrode areas R3, and the wiring area R4 may be located in two adjacent touch electrode areas in the second direction X. Between the control electrode region R3, but not limited thereto. Since the first electrode 21A of this embodiment extends from one edge of the viewing area R1 to the opposite edge in the first direction Y, the wiring corresponding to the first electrode 21A does not need to be arranged in the viewing area R1 . That is to say, the traces 22 disposed in the trace region R4 of the visible region R1 are correspondingly connected to the second electrode 21B. It should be noted that, as shown in FIG. 6 , since the touch electrodes 21 , the traces 22 and the auxiliary electrodes 23 are all part of the patterned transparent conductive layer 20 disposed on the substrate 10 , the touch electrodes located in the touch electrode region R3 The control electrode 21, the auxiliary electrode 23 and the wiring 22 located in the wiring area R4 are all arranged on the same plane, and the touch electrode 21, the wiring 22 and the auxiliary electrode 23 do not overlap each other in the vertical direction Z, and this The touch panel 201 of the embodiment can be regarded as a one layer sensor (OLS) touch panel. That is to say, the touch electrodes 21 , the wires 22 and the auxiliary electrodes 23 of this embodiment can be formed together by patterning the transparent conductive layer 20 , so as to achieve the effect of simplifying the manufacturing process. In addition, the touch panel 201 of this embodiment may optionally further include an insulating protection layer (not shown) formed on the substrate 10 and covering the touch electrodes 21, the traces 22 and the auxiliary electrodes 23, but it does not limit.

下文将针对本发明的不同实施例进行说明，且为简化说明，以下说明主要针对各实施例不同之处进行详述，而不再对相同之处作重复赘述。此外，本发明的各实施例中相同的器件是以相同的标号进行标示，以利于各实施例间互相对照。Different embodiments of the present invention will be described below, and to simplify the description, the following description mainly focuses on the differences of the embodiments, and the similarities will not be repeated. In addition, the same components in the various embodiments of the present invention are marked with the same symbols, so as to facilitate mutual comparison between the various embodiments.

请参考图7，图7绘示了本发明第二实施例的触控面板的示意图。如图7所示，本实施例的触控面板202与上述第一实施例不同的地方在于，本实施例的图案化透明导电层20可由堆叠的第一氧化物透明导电层20A、薄金属层20B以及第二氧化物透明导电层20C所构成。第一氧化物透明导电层20A与第二氧化物透明导电层20C可包括氧化铟锡、氧化铟锌、氧化铝锌或其他适合的金属氧化物透明导电材料。薄金属层20B可包括铝、铜、银、铬、钛、钼等导电性较佳的金属材料、上述材料的复合层或上述材料的合金，且通过控制薄金属层20B的厚度(约10纳米)可使图案化透明导电层20具有高透光度(在波长约为550纳米的状况下，其透光度约大于或等于86％)。因此，相较于单纯的金属氧化物透明导电材料具有约88％以上的透光度，本实施例的金属氧化物透明导电材料/薄金属层/金属氧化物透明导电材料的三层结构虽然在透光度上表现些微较差，但却可通过薄金属层20B来达到降低图案化透明导电层20的电阻率的效果，对于以图案化透明导电层20形成的走线22的阻值降低有显著的效果。Please refer to FIG. 7 , which is a schematic diagram of a touch panel according to a second embodiment of the present invention. As shown in FIG. 7 , the difference between the touch panel 202 of this embodiment and the above-mentioned first embodiment is that the patterned transparent conductive layer 20 of this embodiment can be composed of a stacked first oxide transparent conductive layer 20A, a thin metal layer 20B and the second oxide transparent conductive layer 20C. The first oxide transparent conductive layer 20A and the second oxide transparent conductive layer 20C may include indium tin oxide, indium zinc oxide, aluminum zinc oxide or other suitable metal oxide transparent conductive materials. The thin metal layer 20B may include aluminum, copper, silver, chromium, titanium, molybdenum and other metal materials with better conductivity, a composite layer of the above materials or an alloy of the above materials, and by controlling the thickness of the thin metal layer 20B (about 10 nanometers ) can make the patterned transparent conductive layer 20 have high light transmittance (at a wavelength of about 550 nm, the light transmittance is greater than or equal to about 86%). Therefore, compared with a pure metal oxide transparent conductive material having a transmittance of about 88% or more, although the three-layer structure of the metal oxide transparent conductive material/thin metal layer/metal oxide transparent conductive material in this embodiment is The light transmittance is slightly poor, but the effect of reducing the resistivity of the patterned transparent conductive layer 20 can be achieved through the thin metal layer 20B, which has a significant effect on reducing the resistance of the traces 22 formed by the patterned transparent conductive layer 20. significant effect.

请参考图8，图8绘示了本发明第三实施例的触控面板的示意图。如图8所示，本实施例的触控面板203与上述第一实施例不同的地方在于，本实施例的触控电极21可为形状相同的电极分布于触控电极区R3中，藉此可进行一自电容式触控检测，但并不以此为限。此外，在触控面板203中，图案化透明导电层20可更包括一辅助走线24设置于走线区R4中，辅助走线24是与走线22电性分离，且辅助走线24较佳为电性浮置状态而未与任何器件电连接或者可电性接地，但并不以此为限。辅助走线24的形状较佳是与同样位于走线区R4的走线22相似，而辅助走线24可用以填补走线区R4中未设置走线22的区域，藉此提升走线区R4中的视觉一致性。Please refer to FIG. 8 , which is a schematic diagram of a touch panel according to a third embodiment of the present invention. As shown in FIG. 8 , the difference between the touch panel 203 of this embodiment and the above-mentioned first embodiment is that the touch electrodes 21 of this embodiment can be electrodes with the same shape and distributed in the touch electrode region R3, thereby A self-capacitive touch detection can be performed, but not limited thereto. In addition, in the touch panel 203, the patterned transparent conductive layer 20 may further include an auxiliary wiring 24 disposed in the wiring region R4, the auxiliary wiring 24 is electrically separated from the wiring 22, and the auxiliary wiring 24 is relatively small. Preferably, it is in an electrically floating state without being electrically connected to any device or may be electrically grounded, but not limited thereto. The shape of the auxiliary trace 24 is preferably similar to the trace 22 also located in the trace area R4, and the auxiliary trace 24 can be used to fill the area where the trace 22 is not provided in the trace area R4, thereby improving the trace area R4 Visual consistency in .

综上所述，在本发明的触控面板中，位于可视区中的触控电极与走线是由同一个图案化透明导电层所形成，且于触控电极区中设置有图案化透明导电层以外的区域面积的比率(开口率)与走线区中设置有图案化透明导电层以外的区域面积的比率相近(相差值小于10％)，可避免因触控电极区与走线区之间开口率不一致而导致在整体视觉上产生可视余影的问题，进而达到提升触控面板的视觉品质的目的。To sum up, in the touch panel of the present invention, the touch electrodes and traces located in the visible area are formed by the same patterned transparent conductive layer, and a patterned transparent conductive layer is provided in the touch electrode area. The ratio of the area of the area other than the conductive layer (opening ratio) is similar to the ratio of the area of the area other than the patterned transparent conductive layer in the wiring area (the difference is less than 10%), which can avoid the difference between the touch electrode area and the wiring area. The inconsistency of the aperture ratios between them leads to the problem of visible afterimages in the overall vision, thereby achieving the purpose of improving the visual quality of the touch panel.