技术领域technical field
本发明有关于一种感测电极结构及其应用的触控面板，且特别是一种具有能够增加电容值的感测电极结构及使用该感测电极结构的触控面板。The present invention relates to a sensing electrode structure and a touch panel for its application, and in particular to a sensing electrode structure capable of increasing capacitance and a touch panel using the sensing electrode structure.
背景技术Background technique
随着半导体与电路设计技术的进步，目前触控装置大量地被应用于手持装置或其它电子装置中，其中触控装置包括触控面板与控制器。举例来说，一般的智能型手机都具有触控面板，而触控面板中具有感测电极数组，其中感测电极数组具有多条扫描线与驱动线。控制器可以将驱动信号传送给感测电极数组的驱动线，并且接收扫描在线的感测信号，以判读使用者于触控面板上的触碰区域。With the advancement of semiconductor and circuit design technologies, currently touch devices are widely used in handheld devices or other electronic devices, wherein the touch devices include touch panels and controllers. For example, a general smart phone has a touch panel, and the touch panel has a sensing electrode array, wherein the sensing electrode array has a plurality of scanning lines and driving lines. The controller can transmit the driving signal to the driving line of the sensing electrode array, and receive the sensing signal on the scanning line, so as to judge the user's touch area on the touch panel.
请参照图1，图1是传统触控面板的感测电极结构的俯视图。触控面板包含基板以及形成于基板同一表面上的感测电极结构。其中，感测电极结构具有多个第一轴向电极11与多个第二轴向电极12，其中多个第一轴向电极11与多个第二轴向电极12可以形成感测电极数组，以用来感测触碰区域。Please refer to FIG. 1 , which is a top view of a sensing electrode structure of a conventional touch panel. The touch panel includes a substrate and a sensing electrode structure formed on the same surface of the substrate. Wherein, the sensing electrode structure has a plurality of first axial electrodes 11 and a plurality of second axial electrodes 12, wherein the plurality of first axial electrodes 11 and the plurality of second axial electrodes 12 can form a sensing electrode array, to sense the touch area.
于图1中，第一轴向电极11为X轴向电极，且第二轴向电极12为Y轴向电极。每一第一轴向电极11具有多个菱形导电图形111，其中每一个菱形导电图形111与相邻的菱形导电图形111通过第一导电组件112电性连接。每一第二轴向电极12具有多个菱形导电图形121，其中每一个菱形导电图形121与相邻的菱形导电图形121通过第二导电组件122而电性连接。此外，感测电极结构进一步包含多个绝缘隔点(未绘于图1)，分别设置在第二导电组件122与对应的第一导电组件112之间，以使第一轴向电极11与第二轴向电极12彼此电性绝缘。In FIG. 1 , the first axis electrodes 11 are X-axis electrodes, and the second axis electrodes 12 are Y-axis electrodes. Each first axial electrode 11 has a plurality of rhombic conductive patterns 111 , wherein each rhombic conductive pattern 111 is electrically connected to an adjacent rhombic conductive pattern 111 through a first conductive component 112 . Each second axial electrode 12 has a plurality of rhombic conductive patterns 121 , wherein each rhombic conductive pattern 121 is electrically connected to an adjacent rhombic conductive pattern 121 through a second conductive component 122 . In addition, the sensing electrode structure further includes a plurality of insulating spacers (not shown in FIG. 1 ), respectively disposed between the second conductive elements 122 and the corresponding first conductive elements 112, so that the first axial electrodes 11 and the first axial electrodes 112 The two axial electrodes 12 are electrically insulated from each other.
菱形导电图形111与121之间相邻边的长度会影响耦合电容的电容值大小，长度越长，电容值越大。如果第一轴向电极11与第二轴向电极12之间生成的耦合电容的电容值不够大时，感测电极数组的感测均匀度将会较不理想，进而影响到触控面板的划线线性度。The length of adjacent sides between the rhombic conductive patterns 111 and 121 will affect the capacitance value of the coupling capacitor, the longer the length, the larger the capacitance value. If the capacitance value of the coupling capacitance generated between the first axial electrodes 11 and the second axial electrodes 12 is not large enough, the sensing uniformity of the sensing electrode array will be unsatisfactory, which will affect the scratching of the touch panel. Linearity.
请参照图2A与图2B，分别是使用5与6厘米的铜柱体于传统触控面板上的划线线性度的示意图。于图2A与图2B中，使用者是以10米每秒的速度由左上往右下划线与由右上往左下划线，感测电路判读触控面板上的划线轨迹为21～24。由图2A与图2B可以得知，使用菱形导电图形111与121的触控面板的划线线性度并不理想。Please refer to FIG. 2A and FIG. 2B , which are schematic diagrams of linearity of scribing lines on traditional touch panels using 5 cm and 6 cm copper cylinders, respectively. In FIG. 2A and FIG. 2B , the user draws a line from upper left to right and from upper right to left at a speed of 10 meters per second. It can be seen from FIG. 2A and FIG. 2B that the scribing linearity of the touch panel using the diamond-shaped conductive patterns 111 and 121 is not ideal.
为了提高触控面板的划线线性度与提升信号变化量，有必要在触控面板的感测电极结构中导入一种新的导电图形。In order to improve the scribing linearity of the touch panel and increase the signal variation, it is necessary to introduce a new conductive pattern into the sensing electrode structure of the touch panel.
发明内容Contents of the invention
本发明的目的在于提供一种感测电极结构以及使用该感测电极结构的触控面板，其通过触控面板的感测电极结构中的导电图形的改良，以增加导电图形彼此之间耦合产生的电容容值，使得触控面板的划线线性度提高。The object of the present invention is to provide a sensing electrode structure and a touch panel using the sensing electrode structure, which improves the conductive pattern in the sensing electrode structure of the touch panel to increase the coupling between the conductive patterns The capacitance value of the capacitor improves the line linearity of the touch panel.
本发明提供一种感测电极结构，所述感测电极结构包括多个第一轴向电极与多个第二轴向电极。所述多个第二轴向电极与所述多个第一轴向电极形成于基板的同一侧，并且与所述多个第一轴向电极彼此电性绝缘。每一所述第一轴向电极具有栅状结构的多个第一导电图形，并且所述栅状结构的多个第一导电图形彼此电性连接。每一所述第二轴向电极包含栅状结构的多个第二导电图形，所述栅状结构的多个第二导电图形彼此电性连接。The present invention provides a sensing electrode structure, which includes a plurality of first axial electrodes and a plurality of second axial electrodes. The plurality of second axial electrodes and the plurality of first axial electrodes are formed on the same side of the substrate, and are electrically insulated from the plurality of first axial electrodes. Each of the first axial electrodes has a plurality of first conductive patterns in a grid structure, and the plurality of first conductive patterns in the grid structure are electrically connected to each other. Each of the second axial electrodes includes a plurality of second conductive patterns in a grid structure, and the plurality of second conductive patterns in the grid structure are electrically connected to each other.
本发明还提供一种触控面板，所述触控面板包括基板与上述感测电极结构。The present invention also provides a touch panel, which includes a substrate and the above-mentioned sensing electrode structure.
综上所述，本发明提供一种触控面板的感测电极结构，此感测电极结构中的导电图形可以通过增加耦合电容的电容值来提升感测均匀度，使得触控面板的划线线性度提高，并且当触控面板于多点触碰的情况下，其触碰区域上的感测信号的变化量并不会因为多点触碰的原因而大幅下降。In summary, the present invention provides a sensing electrode structure of a touch panel. The conductive pattern in the sensing electrode structure can improve the sensing uniformity by increasing the capacitance value of the coupling capacitor, so that the scribing of the touch panel The linearity is improved, and when the touch panel is multi-touched, the change amount of the sensing signal on the touch area will not drop significantly due to the multi-touch.
为使能更进一步了解本发明的特征及技术内容，请参阅以下有关本发明的详细说明与附图，但是此等说明与所附图式仅用来说明本发明，而非对本发明的权利范围作任何的限制。In order to enable a further understanding of the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings of the present invention, but these descriptions and accompanying drawings are only used to illustrate the present invention, rather than to the scope of rights of the present invention make any restrictions.
附图说明Description of drawings
图1是用于传统触控面板的感测电极结构的俯视图。FIG. 1 is a top view of a sensing electrode structure used in a conventional touch panel.
图2A与图2B分别是使用5与6厘米的铜柱体于传统触控面板上的划线线性度的示意图。FIG. 2A and FIG. 2B are diagrams showing linearity of scribing lines on a traditional touch panel using 5 cm and 6 cm copper cylinders, respectively.
图3是本发明的触控面板的剖面示意图。FIG. 3 is a schematic cross-sectional view of the touch panel of the present invention.
图4是本发明的触控面板的感测电极结构的俯视图。FIG. 4 is a top view of the sensing electrode structure of the touch panel of the present invention.
图5是本发明另一实施例的触控面板的感测电极结构的俯视图。FIG. 5 is a top view of a sensing electrode structure of a touch panel according to another embodiment of the present invention.
图6是本发明另一实施例的触控面板的感测电极结构的俯视图。FIG. 6 is a top view of a sensing electrode structure of a touch panel according to another embodiment of the present invention.
图7是本发明的不同轴向的导电组件的相交部份的放大俯视图。FIG. 7 is an enlarged top view of the intersecting portion of the conductive elements in different axes according to the present invention.
图8是本发明的触控面板中的各感测点的示意图。FIG. 8 is a schematic diagram of each sensing point in the touch panel of the present invention.
图9A与图9B分别是使用5与6厘米的铜柱体于使用图4的感测电极结构的触控面板上的划线线性度的示意图。FIG. 9A and FIG. 9B are schematic diagrams showing the linearity of the scribe line on the touch panel using the sensing electrode structure of FIG. 4 using 5 cm and 6 cm copper cylinders, respectively.
图10A与图10B分别是使用5与6厘米的铜柱体于使用图5的感测电极结构的触控面板上的划线线性度的示意图。FIG. 10A and FIG. 10B are schematic diagrams showing the linearity of the scribe line on the touch panel using the sensing electrode structure of FIG. 5 using 5 cm and 6 cm copper cylinders, respectively.
图11A与图11B分别是使用5与6厘米的铜柱体于使用图6的感测电极结构的触控面板上的划线线性度的示意图FIG. 11A and FIG. 11B are schematic diagrams of the linearity of the scribe lines on the touch panel using the sensing electrode structure of FIG. 6 using 5 and 6 cm copper cylinders, respectively.
其中，附图标记说明如下：Wherein, the reference signs are explained as follows:
11、41、51、61：第一轴向电极11, 41, 51, 61: first axial electrode
12、42、52、62：第二轴向电极12, 42, 52, 62: Second axial electrode
111、121：菱形导电图形111, 121: Diamond-shaped conductive graphics
112：第一导电组件112: first conductive component
122：第二导电组件122: second conductive component
21～24、81～84、91～94、101～104：划线轨迹21～24, 81～84, 91～94, 101～104: dash track
3：触控面板3: Touch panel
31：保护层31: protective layer
32：导电层32: Conductive layer
33：基板33: Substrate
411、511、611、741、742：栅状结构的第一导电图形411, 511, 611, 741, 742: the first conductive pattern of the grid structure
421、521、621、731、732：栅状结构的第二导电图形421, 521, 621, 731, 732: the second conductive pattern of the grid structure
412、512、612、71：第一导电组件412, 512, 612, 71: first conductive component
422、522、622、72第二导电组件422, 522, 622, 72 second conductive component
4111、4211、5111、5211、6111、6211：主干结构4111, 4211, 5111, 5211, 6111, 6211: backbone structure
4112、4212、5112、5113、5212、6112、6212：分枝结构4112, 4212, 5112, 5113, 5212, 6112, 6212: branched structure
4113、5114、6113：子分枝结构4113, 5114, 6113: sub-branch structure
73：绝缘隔点73: insulation spacer
P1～P4：触碰区域P1～P4: touch area
具体实施方式detailed description
请参照图3，图3是本发明的触控面板的剖面示意图。本实施例所提供的触控面板3包括保护层31、导电层32与基板33。其中，导电层32可例如是采用铟锡氧化物(ITO)材料，用以形成于基板33之上，并且导电层32更进一步通过图案化工艺而形成感测电极结构，以用来感测触碰区域。藉此，本实施例可架构出单层ITO的感测电极结构。此外，保护层31进一步形成于导电层32之上，用以全面覆盖感测电极结构，提供保护感测电极结构的作用。要说明的是，上述的触控面板3的剖面结构、导电层32的材料以及接下来所进一步具体说明的各种感测电极结构的形状架构具体态样，皆并非用来限制本发明。Please refer to FIG. 3 . FIG. 3 is a schematic cross-sectional view of the touch panel of the present invention. The touch panel 3 provided in this embodiment includes a protective layer 31 , a conductive layer 32 and a substrate 33 . Wherein, the conductive layer 32 can be formed on the substrate 33 using, for example, indium tin oxide (ITO), and the conductive layer 32 is further patterned to form a sensing electrode structure for sensing touch touch area. In this way, the present embodiment can construct a single-layer ITO sensing electrode structure. In addition, the protection layer 31 is further formed on the conductive layer 32 to completely cover the sensing electrode structure and protect the sensing electrode structure. It should be noted that the above-mentioned cross-sectional structure of the touch panel 3 , the material of the conductive layer 32 and the specific shapes and structures of various sensing electrode structures described in detail below are not intended to limit the present invention.
请基于图3的触控面板的架构来参照图4，图4是本发明的触控面板的感测电极结构的俯视图。本实施例的感测电极结构包括多个第一轴向电极41与多个第二轴向电极42。第一轴向电极41例如为X轴向电极，而第二轴向电极42则对应第一轴向电极41而例如为Y轴向电极。其中，本实施例的第一轴向电极41及第二轴向电极42是形成在基板32的同一侧，并且彼此电性绝缘。此外，第一轴向电极41与第二轴向电极42之间是采用碎形切割来形成电性绝缘，故其切割线是呈网格状，以增加光学补偿效果。然而，第一轴向电极41与第二轴向电极42的切割方式并非本实施例所限制。Please refer to FIG. 4 based on the structure of the touch panel in FIG. 3 . FIG. 4 is a top view of the sensing electrode structure of the touch panel of the present invention. The sensing electrode structure of this embodiment includes a plurality of first axial electrodes 41 and a plurality of second axial electrodes 42 . The first axis electrode 41 is, for example, an X-axis electrode, and the second axis electrode 42 corresponds to the first axis electrode 41 and is, for example, a Y-axis electrode. Wherein, the first axial electrodes 41 and the second axial electrodes 42 in this embodiment are formed on the same side of the substrate 32 and are electrically insulated from each other. In addition, fractal cutting is used to form electrical insulation between the first axial electrode 41 and the second axial electrode 42 , so the cutting lines are grid-shaped to increase the optical compensation effect. However, the cutting method of the first axial electrodes 41 and the second axial electrodes 42 is not limited by this embodiment.
每一第一轴向电极41包含多个栅状结构的第一导电图形411，并且所述多个栅状结构的第一导电图形411彼此电性连接。每一第二轴向电极42包含多个栅状结构的第二导电图形421，并且所述多个栅状结构的第二导电图形421彼此电性连接。Each first axial electrode 41 includes a plurality of first conductive patterns 411 of a grid structure, and the plurality of first conductive patterns 411 of a grid structure are electrically connected to each other. Each of the second axial electrodes 42 includes a plurality of second conductive patterns 421 of a grid structure, and the plurality of second conductive patterns 421 of a grid structure are electrically connected to each other.
更具体来讲，每一第一轴向电极41更包含多个第一导电组件412，分别用来电性连接所述第一轴向电极41中相邻的栅状结构的第一导电图形411，而每一第二轴向电极42则包含多个第二导电组件422，分别用来电性连接所述第二轴向电极42中且相邻的栅状结构的第二导电图形421。此外，感测电极结构更包括多个绝缘隔点(未绘于图4)，分别设置于第一导电组件412与对应的第二导电组件422之间，让第一导电组件412实际是以一架桥形式来电性连接相邻的两个栅状结构的第一导电图形411，藉此让第一轴向电极41与第二轴向电极42得以彼此电性绝缘。附带说明的是，本实施例的第一导电组件412可以采用金属导线、铟锡氧化物等导电材料的设计。More specifically, each first axial electrode 41 further includes a plurality of first conductive components 412, respectively used to electrically connect the first conductive patterns 411 of adjacent grid-like structures in the first axial electrode 41, Each of the second axial electrodes 42 includes a plurality of second conductive elements 422 for electrically connecting the second conductive patterns 421 of adjacent grid structures in the second axial electrodes 42 . In addition, the sensing electrode structure further includes a plurality of insulating spacers (not shown in FIG. 4 ), respectively disposed between the first conductive component 412 and the corresponding second conductive component 422, so that the first conductive component 412 is actually a The bridging form is used to electrically connect the first conductive patterns 411 of two adjacent grid structures, so that the first axial electrodes 41 and the second axial electrodes 42 are electrically insulated from each other. It should be noted that the first conductive component 412 in this embodiment may be designed with conductive materials such as metal wires and indium tin oxide.
每一栅状结构的第一导电图形411包含主干结构4111、多个分枝结构4112与多个子分枝结构4113。其中，第一轴向上相邻的两个栅状结构的第一导电图形411的主干结构4111通过第一导电组件412来电性连接。再者，本实施例的两个分支结构4112分别自主干结构4111的两侧方向延伸，每两个子分支结构4113又分别自一个分枝结构4112的两侧方向延伸。The first conductive pattern 411 of each grid structure includes a backbone structure 4111 , a plurality of branch structures 4112 and a plurality of sub-branch structures 4113 . Wherein, the backbone structures 4111 of the first conductive patterns 411 of the two adjacent grid structures in the first axial direction are electrically connected through the first conductive component 412 . Furthermore, the two branch structures 4112 in this embodiment extend from both sides of the main trunk structure 4111 , and each of the two sub-branch structures 4113 extends from both sides of a branch structure 4112 .
更进一步地说，于图4中，栅状结构的第一导电图形411可以为对称的导电图形。另外，栅状结构的第一导电图形411的子分支结构4113自分枝结构4112的中间部位的两侧方向延伸，子分支结构4113可以平行于主干结构4111，而分枝结构4112可以垂直于主干结构4111。除此之外，每一栅状结构的第一导电图形411的长度与宽度分别可例如与以往菱形导电图形的面积上下长度与左右宽度相同，其分别为5.63与5.51厘米。Furthermore, in FIG. 4 , the first conductive pattern 411 of the grid structure may be a symmetrical conductive pattern. In addition, the sub-branch structures 4113 of the first conductive pattern 411 of the grid structure extend from both sides of the middle part of the branch structure 4112, the sub-branch structures 4113 can be parallel to the trunk structure 4111, and the branch structures 4112 can be perpendicular to the trunk structure 4111. In addition, the length and width of the first conductive pattern 411 of each grid-like structure may be the same as the area of the conventional diamond-shaped conductive pattern, which are 5.63 cm and 5.51 cm, respectively.
每一栅状结构的第二导电图形421包含主干结构4211与多个分枝结构4212。其中，第二轴向上相邻的两个栅状结构的第二导电图形421的主干结构4211通过第二导电组件422来电性连接。再者，本实施例中，每两个分支结构4212分别自主干结构4211的两侧方向延伸。The second conductive pattern 421 of each grid structure includes a backbone structure 4211 and a plurality of branch structures 4212 . Wherein, the backbone structures 4211 of the second conductive patterns 421 of the two adjacent grid structures in the second axial direction are electrically connected through the second conductive components 422 . Furthermore, in this embodiment, every two branch structures 4212 extend in the direction of both sides of the main trunk structure 4211 respectively.
更进一步地说，于图4中，栅状结构的第二导电图形421可以为对称的导电图形。另外，栅状结构的第二导电图形421的多个分支结构4212自主干结构4211的上端、中间、下端部位的两侧方向延伸，而分枝结构4212可以垂直于主干结构4211。除此之外，每一栅状结构的第二导电图形421的长度与宽度分别可例如与以往菱形导电图形的面积上下长度与左右宽度相同，其分别为5.63与5.51厘米。Furthermore, in FIG. 4 , the second conductive pattern 421 of the grid structure may be a symmetrical conductive pattern. In addition, the plurality of branch structures 4212 of the second conductive pattern 421 of the grid-like structure extend along two sides of the upper end, the middle and the lower end of the main structure 4211 , and the branch structures 4212 may be perpendicular to the main structure 4211 . In addition, the length and width of the second conductive pattern 421 of each grid-like structure can be the same as the area of the conventional diamond-shaped conductive pattern, for example, the length, width, and width are 5.63 cm and 5.51 cm, respectively.
在此请注意，上述栅状结构的第一导电图形411及第二导电图形421的设计方式，并非用以限制本发明。本发明实施例通过栅状结构设计来增加每一第一导电图形411及每一第二导电图形421之间相邻边的边长，以提升电容值。因此，将可以提高触控面板的划线线性度与多点触碰下的感测信号的变化量。举凡其它可以有效增加导电图形边长的栅状结构皆可以应用于本发明的感测电极数组。Please note here that the design of the first conductive pattern 411 and the second conductive pattern 421 of the grid-like structure is not intended to limit the present invention. In the embodiment of the present invention, the length of the adjacent side between each first conductive pattern 411 and each second conductive pattern 421 is increased through the grid structure design, so as to increase the capacitance value. Therefore, the scribing linearity of the touch panel and the variation of sensing signals under multi-touch can be improved. Any other grid structure that can effectively increase the side length of the conductive pattern can be applied to the sensing electrode array of the present invention.
请参照图5，图5是本发明另一实施例所提供的触控面板的感测电极结构的俯视图。图5与图4的感测电极结构的差异主要在于栅状结构的导电图形的不同。据此，以下仅针对第一轴向电极51的第一导电图形511与第二轴向电极52的第二导电图形521来进行说明。Please refer to FIG. 5 , which is a top view of a sensing electrode structure of a touch panel according to another embodiment of the present invention. The difference between the sensing electrode structures in FIG. 5 and FIG. 4 mainly lies in the difference in the conductive pattern of the grid structure. Accordingly, only the first conductive pattern 511 of the first axial electrode 51 and the second conductive pattern 521 of the second axial electrode 52 will be described below.
每一栅状结构的第一导电图形511包含主干结构5111、多个分枝结构5112、5113与多个子分枝结构5114。其中，第一轴向上相邻的两个栅状结构的第一导电图形511的主干结构5111通过第一导电组件512来电性连接。再者，本实施例中，每两个分支结构5113分别自主干结构5111的两端部位的其中之一的两侧方向延伸，而另有两个分支结构5112分别自主干结构5111中间部位的两侧方向延伸，且每两个子分支结构5114又分别自主干结构5111中间部位所延伸出的任一分枝结构5112的两侧方向延伸。The first conductive pattern 511 of each grid structure includes a backbone structure 5111 , a plurality of branch structures 5112 , 5113 and a plurality of sub-branch structures 5114 . Wherein, the backbone structures 5111 of the first conductive patterns 511 of the two adjacent grid structures in the first axial direction are electrically connected through the first conductive component 512 . Furthermore, in this embodiment, each two branch structures 5113 respectively extend in the direction of both sides of one of the two ends of the main body structure 5111, and another two branch structures 5112 respectively extend to two sides of the middle part of the main body structure 5111. The two sub-branch structures 5114 extend in the lateral direction, and each of the two sub-branch structures 5114 extends in the direction of both sides of any branch structure 5112 extending from the middle part of the main trunk structure 5111 .
更进一步地说，于图5中，栅状结构的第一导电图形511可以为对称的导电图形。另外，栅状结构的第一导电图形511的子分支结构5114自分枝结构5112的中间部位的两侧方向延伸，且任一子分支结构5114由两个一大一小的矩形结构构成，其中分支结构5112与子分支结构5114连接的部份为较小的矩形结构，而子分支结构5114的尾端的部份则为较大的矩形结构。分枝结构5112的宽度小于分枝结构5113的宽度。子分支结构5114可以平行于主干结构5111，而分枝结构5112与5113可以垂直于主干结构5111。除此之外，每一栅状结构的第一导电图形511的长度与宽度分别可例如与以往菱形导电图形的面积上下长度与左右宽度相同，其分别为5.63与5.51厘米。Furthermore, in FIG. 5 , the first conductive pattern 511 of the grid structure may be a symmetrical conductive pattern. In addition, the sub-branch structures 5114 of the first conductive pattern 511 of the grid-like structure extend from both sides of the middle part of the branch structure 5112, and any sub-branch structure 5114 is composed of two rectangular structures, one large and one small, wherein the branches The part where the structure 5112 connects with the sub-branch structure 5114 is a smaller rectangular structure, and the part at the end of the sub-branch structure 5114 is a larger rectangular structure. The width of the branch structure 5112 is smaller than the width of the branch structure 5113 . The sub-branch structure 5114 can be parallel to the trunk structure 5111 , and the branch structures 5112 and 5113 can be perpendicular to the trunk structure 5111 . In addition, the length and width of the first conductive pattern 511 of each grid-like structure can be the same as the area of the conventional diamond-shaped conductive pattern, which are 5.63 cm and 5.51 cm, respectively.
每一栅状结构的第二导电图形521包含主干结构5211与多个分枝结构5212。其中，第二轴向上相邻的两个栅状结构的第二导电图形521的主干结构5211通过第二导电组件522来电性连接。再者，本实施例中，每两个分支结构5212分别自主干结构5211的两侧方向延伸。任一分支结构5212由两个一大一小的矩形结构构成，其中分支结构5212与主干结构5211连接的部份为较小的矩形结构，而分支结构5212的尾端的部份则为较大的矩形结构。The second conductive pattern 521 of each grid structure includes a backbone structure 5211 and a plurality of branch structures 5212 . Wherein, the backbone structures 5211 of the second conductive patterns 521 of the two adjacent grid structures in the second axial direction are electrically connected through the second conductive components 522 . Furthermore, in this embodiment, every two branch structures 5212 extend in two directions of the main structure 5211 respectively. Any branch structure 5212 is composed of two rectangular structures, one large and one small. The part where the branch structure 5212 is connected to the main structure 5211 is a smaller rectangular structure, while the part at the end of the branch structure 5212 is a larger one. Rectangular structure.
更进一步地说，于图5中，栅状结构的第二导电图形521可以为对称的导电图形。另外，栅状结构的导电图形521的多个分支结构5212自主干结构5211的上端、中间、下端部位的两侧方向延伸，而分枝结构5212可以垂直于主干结构5211。除此之外，每一栅状结构的第二导电图形521的长度与宽度分别可例如与以往菱形导电图形的面积上下长度与左右宽度相同，其分别为5.63与5.51厘米。Furthermore, in FIG. 5 , the second conductive pattern 521 of the grid structure may be a symmetrical conductive pattern. In addition, the multiple branch structures 5212 of the conductive pattern 521 of the grid structure extend in two directions of the upper end, the middle and the lower end of the main structure 5211 , and the branch structures 5212 may be perpendicular to the main structure 5211 . In addition, the length and width of the second conductive pattern 521 of each grid-like structure can be the same as the area of the conventional diamond-shaped conductive pattern, which are 5.63 cm and 5.51 cm, respectively.
请参照图6，图6是本发明另一实施例所提供的触控面板的感测电极结构的俯视图。图6与图4的感测电极结构的差异主要在于栅状结构的导电图形的不同。据此，以下仅针对栅状结构的第一导电图形611与第二导电图形621来进行说明。Please refer to FIG. 6 , which is a top view of a sensing electrode structure of a touch panel according to another embodiment of the present invention. The difference between the sensing electrode structures in FIG. 6 and FIG. 4 mainly lies in the difference in the conductive pattern of the grid structure. Accordingly, only the first conductive pattern 611 and the second conductive pattern 621 of the grid structure will be described below.
每一栅状结构的第一导电图形611包含主干结构6111、多个分枝结构6112与多个子分枝结构6113。其中，第一轴向上相邻的两个栅状结构的第一导电图形611的主干结构6111通过第一导电组件612来电性连接。再者，本实施例的两个分支结构6112分别自主干结构6111的两侧方向延伸，每两个子分支结构6113又分别自一个分枝结构6112的两侧方向延伸。The first conductive pattern 611 of each grid structure includes a backbone structure 6111 , a plurality of branch structures 6112 and a plurality of sub-branch structures 6113 . Wherein, the backbone structures 6111 of the first conductive patterns 611 of the two adjacent grid structures in the first axial direction are electrically connected through the first conductive component 612 . Furthermore, the two branch structures 6112 in this embodiment respectively extend from both sides of the main trunk structure 6111 , and each of the two sub-branch structures 6113 extends from both sides of a branch structure 6112 .
更进一步地说，于图6中，栅状结构的第一导电图形611可以为对称的导电图形。另外，栅状结构的第一导电图形611的子分支结构6113自分枝结构612的尾端部位的两侧方向延伸，子分支结构6113可以平行于主干结构6111，而分枝结构6112可以垂直于主干结构6111。除此之外，每一栅状结构的第一导电图形611的长度与宽度分别可例如与以往菱形导电图形的面积上下长度与左右宽度相同，其分别为5.63与5.51厘米。Furthermore, in FIG. 6 , the first conductive pattern 611 of the grid structure may be a symmetrical conductive pattern. In addition, the sub-branch structures 6113 of the first conductive pattern 611 of the grid structure extend from both sides of the tail end of the branch structure 612, the sub-branch structures 6113 can be parallel to the trunk structure 6111, and the branch structures 6112 can be perpendicular to the trunk Structure 6111. In addition, the length and width of the first conductive pattern 611 of each grid-like structure can be the same as the area of the conventional diamond-shaped conductive pattern, which are 5.63 cm and 5.51 cm, respectively.
每一栅状结构的第二导电图形621包含主干结构6211与多个分枝结构6212。其中，第二轴向上相邻的两个栅状结构的第二导电图形621的主干结构6211通过第二导电组件622来电性连接。再者，本实施例中，每两个分支结构6212分别自主干结构6211的两侧方向延伸。The second conductive pattern 621 of each grid structure includes a backbone structure 6211 and a plurality of branch structures 6212 . Wherein, the backbone structures 6211 of the second conductive patterns 621 of the two adjacent grid structures in the second axial direction are electrically connected through the second conductive components 622 . Furthermore, in this embodiment, every two branch structures 6212 extend in two directions of the main structure 6211 respectively.
更进一步地说，于图6中，栅状结构的第二导电图形621可以为对称的导电图形。另外，栅状结构的第二导电图形621的多个分支结构6212自主干结构6211的上端、中间、下端部位的两侧方向延伸，而分枝结构6212可以垂直于主干结构6211。除此之外，每一栅状结构的第二导电图形621的长度与宽度分别可例如与以往菱形导电图形的面积上下长度与左右宽度相同，其分别为5.63与5.51厘米。Furthermore, in FIG. 6 , the second conductive pattern 621 of the grid structure may be a symmetrical conductive pattern. In addition, the plurality of branch structures 6212 of the second conductive pattern 621 of the grid-like structure extend along two sides of the upper end, the middle and the lower end of the main structure 6211 , and the branch structures 6212 may be perpendicular to the main structure 6211 . In addition, the length and width of the second conductive pattern 621 of each grid-like structure can be the same as the area of the conventional diamond-shaped conductive pattern, which are 5.63 cm and 5.51 cm, respectively.
请紧接着参照图7，图7是本发明的不同轴向电极的相交部份的放大俯视图。如图7所示，第一轴向电极的栅状结构的第一导电图形741与742之间通过第一导电组件71而彼此电性连接，而第二轴向电极的栅状结构的第二导电图形731与732之间则通过第二导电组件72彼此电性连接。另外，如同前面所述，绝缘隔点73进一步设置在第一导电组件71与对应的第二导电组件72之间，以使第一轴向电极与第二轴向电极能够电性绝缘。Please refer to FIG. 7 in succession. FIG. 7 is an enlarged top view of the intersecting portion of electrodes in different axial directions according to the present invention. As shown in FIG. 7, the first conductive patterns 741 and 742 of the grid-like structure of the first axial electrode are electrically connected to each other through the first conductive component 71, while the second conductive patterns of the grid-like structure of the second axial electrode The conductive patterns 731 and 732 are electrically connected to each other through the second conductive component 72 . In addition, as mentioned above, the insulating spacer 73 is further disposed between the first conductive component 71 and the corresponding second conductive component 72 , so that the first axial electrode and the second axial electrode can be electrically insulated.
请参照图8，图8是本发明的触控面板中的各感测点的示意图。假设使用者是依序通过触碰图8的触控面板上的触碰区域P1至P4来累积增加触碰点，以形成多点触碰。对此，若触控面板的感测电极结构是分别采用图4、图5、图6的栅状结构的导电图形以及以往菱形导电图形来实验的话，由实验数据可得知，在触碰区域P1～P4全部被触碰时，不同导电图形所测得的感测信号的衰减量分别为40.5％、30.28％、38.11％及56.70％，而所测得的感测信号的变化量分别为496、663、583及300。由此看来，栅状结构的导电图形的信号衰减量是低于菱形导电图形的信号衰减量，并且栅状结构的导电图形的信号变化量是高于菱形导电图形的信号变化量。Please refer to FIG. 8 , which is a schematic diagram of each sensing point in the touch panel of the present invention. Assume that the user sequentially touches the touch areas P1 to P4 on the touch panel of FIG. 8 to accumulate touch points to form a multi-touch. In this regard, if the sensing electrode structure of the touch panel is tested by using the conductive pattern of the grid structure in Figure 4, Figure 5, and Figure 6 and the conventional diamond-shaped conductive pattern, it can be known from the experimental data that in the touch area When P1～P4 are all touched, the attenuation of the sensing signal measured by different conductive patterns is 40.5%, 30.28%, 38.11% and 56.70%, respectively, and the variation of the measured sensing signal is 496%, respectively. , 663, 583 and 300. From this point of view, the signal attenuation of the grid-like conductive pattern is lower than that of the rhombic conductive pattern, and the signal variation of the grid-like conductive pattern is higher than that of the diamond-shaped conductive pattern.
请接着参照图9A～11B，图9A与图9B分别是使用5与6厘米的铜柱体于使用图4的感测电极结构的触控面板上的划线线性度的示意图，图10A与图10B分别是使用5与6厘米的铜柱体于使用图5的感测电极结构的触控面板上的划线线性度的示意图，而图11A与图11B分别是使用5与6厘米的铜柱体于使用图6的感测电极结构的触控面板上的划线线性度的示意图。Please refer to FIGS. 9A to 11B. FIG. 9A and FIG. 9B are schematic diagrams showing the linearity of scribe lines on a touch panel using the sensing electrode structure of FIG. 4 using 5 and 6 cm copper cylinders respectively. FIG. 10A and FIG. 10B is a schematic diagram of the linearity of the scribing line on the touch panel using the sensing electrode structure of FIG. 5 using 5 and 6 cm copper pillars, respectively, and FIG. 11A and FIG. 11B are respectively using 5 and 6 cm copper pillars A schematic diagram of linearity of scribe lines on a touch panel using the sensing electrode structure of FIG. 6 .
于图9A～图11B中，使用者是以10米每秒的速度由左上往右下划线与由右上往左下画面，感测电路判读使用图4的感测电极结构的触控面板的划线轨迹为81～84，判读使用图5的感测电极结构的触控面板的划线轨迹为91～94，而判读使用图6的感测电极结构的触控面板的划线轨迹为101～104。由图9A～图11B可知，相较于使用传统菱形导电图形的感测电极结构，使用图4～图6的感测电极结构的触控面板将可以具有较佳的划线线性度。In FIG. 9A to FIG. 11B , the user draws a line from upper left to lower right and from upper right to lower left at a speed of 10 meters per second, and the sensing circuit interprets the marking trajectory of the touch panel using the sensing electrode structure in FIG. 4 are 81-84, the scribe traces of the touch panel using the sensing electrode structure in FIG. 5 are interpreted as 91-94, and the scribe traces of the touch panel using the sensing electrode structure in FIG. It can be seen from FIGS. 9A-11B that, compared with the sensing electrode structure using the traditional diamond-shaped conductive pattern, the touch panel using the sensing electrode structure in FIGS. 4-6 can have better scribe linearity.
综上所述，本发明提供一种感测电极结构及其应用的触控面板，感测电极结构中的栅状结构的导电图形可以使得触控面板的划线线性度提高，且同时可以使得触控面板于多点触碰的情况下，其触碰区域上的感测信号的变化量并不会因为多点触碰的原因而有大幅的下降，有效增加感测精确度。In summary, the present invention provides a sensing electrode structure and a touch panel for its application. The conductive pattern of the grid-like structure in the sensing electrode structure can improve the linearity of the scribing lines of the touch panel, and at the same time can make In the case of multi-touch on the touch panel, the change amount of the sensing signal on the touch area will not be greatly reduced due to the multi-touch, which effectively increases the sensing accuracy.
以上所述仅为本发明的实施例，其并非用以局限本发明的专利范围。The above descriptions are only examples of the present invention, and are not intended to limit the patent scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
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| CN201110456745.5ACN103186270B (en) | 2011-12-27 | 2011-12-27 | Sensing electrode structure and touch panel using the sensing electrode structure |
| TW101224030UTWM460335U (en) | 2011-12-27 | 2012-12-12 | Sensing electrode structure and touch panel employing the same |
| TW101146800ATWI483167B (en) | 2011-12-27 | 2012-12-12 | Sensing electrode structure and touch panel employing the same |
| KR1020120150764AKR101471255B1 (en) | 2011-12-27 | 2012-12-21 | Sensing electrode structure and touch panel employing the same |
| Application Number | Priority Date | Filing Date | Title |
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| CN201110456745.5ACN103186270B (en) | 2011-12-27 | 2011-12-27 | Sensing electrode structure and touch panel using the sensing electrode structure |
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| CN103186270A CN103186270A (en) | 2013-07-03 |
| CN103186270Btrue CN103186270B (en) | 2016-08-10 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201110456745.5AActiveCN103186270B (en) | 2011-12-27 | 2011-12-27 | Sensing electrode structure and touch panel using the sensing electrode structure |
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| TW (2) | TWI483167B (en) |
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