CN106227395B - 多点触摸传感器面板及其形成方法 - Google Patents

多点触摸传感器面板及其形成方法 Download PDF

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CN106227395B
CN106227395B CN201610615835.7A CN201610615835A CN106227395B CN 106227395 B CN106227395 B CN 106227395B CN 201610615835 A CN201610615835 A CN 201610615835A CN 106227395 B CN106227395 B CN 106227395B
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sensor panel
substantially transparent
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glass
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CN106227395A (zh
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S·P·霍特林
B·R·兰德
M·A·汉布林
唐叶旦
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Abstract

本申请涉及触摸屏层叠。具体而言，公开了一种具有玻璃组件的多点触摸传感器面板，玻璃组件具有可在后侧形成的基本透明导电材料的多个列迹线，其中玻璃组件还可用作在前侧上能被触摸的覆盖。然后相同或不同的基本透明导电材料的行迹线可被定位在列迹线附近，并且可在列迹线与行迹线之间耦接电介质材料层。行和列迹线可取向为在被电介质材料分隔开的交叉位置处彼此交叉，并且交叉位置可形成用于检测玻璃组件的前侧上的一个或多个触摸的互电容传感器。

Description

多点触摸传感器面板及其形成方法
本申请是针对申请日为2007年12月21日、发明名称为“触摸屏层叠”的分案申请201310064633.4提出的，该分案申请是申请日为2007年12月21日、申请号为200780049214.6的中国专利申请“触摸屏层叠”的分案申请。
技术领域
本发明涉及触摸屏，尤其涉及包括触摸屏的材料的层叠。
背景技术
许多类型的输入设备目前可用于在计算系统中执行操作，诸如按钮或键、鼠标、跟踪球、触摸面板、操纵杆、触摸屏等等。具体地，由于触摸屏的易用性和操作的多功能性以及不断下降的价格，它们正变得越来越普及。触摸屏可以包括触摸面板，触摸面板可以是具有触敏表面的透明面板。触摸面板可以定位在显示屏的前面，从而触敏表面覆盖显示屏的可视区域。触摸屏可以允许用户简单地通过手指或输入笔触摸显示屏来作出选择和移动光标。一般而言，触摸屏可以识别触摸和触摸在显示屏上的位置，并且计算系统可以解释触摸并在之后基于触摸事件执行动作。
触摸面板可包括能够检测触摸事件(手指或其它物体在触敏表面上的触摸)的触摸传感器阵列。未来的面板能够检测多点触摸(在大致同一时刻手指或其它物体在触敏表面上的不同位置的触摸)和接近触摸(手指或其它物体在其触摸传感器的近场检测能力内)，并且能够识别和跟踪它们的位置。多点触摸面板在申请人的共同待批的标题为“Multipoint Touchscreen(多点触摸屏)”的美国专利申请No.10/842,862中有所描述，该申请于2004年5月6日提交并于2006年5月11日公布为美国公布专利No.2006/0097991，其内容通过引用包含在本文中。
需要各种材料、粘合剂和处理步骤来制作功能性的、有成本效益的且有空间效率的触摸屏层叠。
发明内容
本发明涉及可以包括玻璃组件的多点触摸传感器面板，玻璃组件具有在后侧上形成的基本透明导电材料的多个列迹线，玻璃组件在一些实施例中还用作在前侧上的可被触摸的覆盖。相同或不同的基本透明导电材料的行迹线随后可以定位在列迹线附近，一个电介质材料层可耦接在列迹线和行迹线之间。行和列迹线取向为在被电介质材料分隔开的交叉位置处彼此交叉，其中交叉位置可形成用于检测玻璃组件的前侧上的一个或多个触摸的互电容传感器。
替换的触摸屏传感器面板实施例可被制造具有下列各项：(1)在覆盖玻璃的后侧上的行和列，(2)在覆盖玻璃的后侧上的列和在独立的聚对苯二甲酸乙二酯(PET)膜的底侧上的行，(3)在单一基片的相对侧上形成的列和列，(4)在两个独立的PET膜上形成的行和列，以及(5)在覆盖玻璃的后侧上形成的列和在独立的PET膜的顶侧上形成的行。
附图说明
图1a-1d例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的行和列的各种示例性触摸屏传感器面板层叠。
图2a-2d例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的列和可在独立的PET膜的底侧上形成的行的各种示例性触摸屏传感器面板层叠。
图3a-3c例示按照本发明一个实施例的具有可在单一基片的相对侧上形成的列和行的各种示例性触摸屏传感器面板层叠。
图4a-4d例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的行和列的各种示例性触摸屏传感器面板层叠。
图5a和5b例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的列和可在独立的PET膜的底侧上形成的行的各种示例性触摸屏传感器面板层叠。
图6a和6b例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的列和可在独立的PET膜的底侧上形成的行的各种示例性触摸屏传感器面板层叠。
图7a-7d例示按照本发明一个实施例的具有可在单一基片的相对侧上形成的列和行的各种示例性触摸屏传感器面板层叠。
图8例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的列和可在独立的PET膜的底侧上形成的行的示例性触摸屏传感器面板层叠。
图9例示按照本发明一个实施例的可在单一基片的相对侧上形成的列和行的示例性触摸屏传感器面板层叠。
图10例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的列和可在独立的玻璃基片的顶侧上形成的行的示例性触摸屏传感器面板层叠。
图11a-11c例示按照本发明一个实施例的具有可在单一基片的相对侧上形成的列和行的各种示例性触摸屏传感器面板层叠。
图12例示按照本发明一个实施例的示例性柔性印制电路(FPC)的侧视图。
图13a和13b例示按照本发明一个实施例的示例性FPC设计的顶视图。
图14例示按照本发明一个实施例的可连接至传感器面板的行和列的示例性FPC设计的顶视图。
图15例示按照本发明一个实施例的示例性柔性印制电路(FPC)的侧视图。
图16a-16c例示按照本发明一个实施例的示例性FPC设计的顶视图。
图17a例示按照本发明一个实施例的用于触摸屏传感器面板的示例性的部分制造好的盖体。
图17b例示按照本发明一个实施例的示例性顶部PET膜。
图17c例示按照本发明一个实施例的具有可在两个独立的PET膜上形成的列和行的示例性触摸屏传感器面板层叠。
图18例示按照本发明一个实施例可用于触摸屏层叠操作的示例性计算系统。
图19a例示按照本发明实施例可包括触摸屏层叠和计算系统的示例性移动电话。
图19b例示按照本发明实施例可包括触摸屏层叠和计算系统的示例性数字音频/视频播放器。
具体实施方式
在下面较佳实施例的描述中，对形成本说明书一部分的附图做出参考，在附图中作为例示示出了可实践本发明的特定实施例。要理解的是，可以使用其它实施例并作出结构改变而不脱离本发明较佳实施例的范围。
应当理解，在下面所有的附图和描述中，所列的材料、性质和维度(除非另外指出，以毫米单位列出)在本质上仅仅是示例性的并且不旨在限制本发明的范围。
图1a-1d例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的行和列的各种示例性触摸屏传感器面板层叠。
图1a示出可在0.8至1.0的聚碳酸酯(PC)外壳118中形成的窗口116。在窗口116内的可以是在其中行和列迹线可在覆盖玻璃的后侧上形成的层叠。基本透明的玻璃组件100可具有能够在用户触摸在其之上的窗口时进行感测的前或顶侧以及与前侧相对的后侧。玻璃组件100可以具有多个层的层叠，这些层按照从上到下的顺序可包括基本透明防眩光(AG)涂层113(示为在组件顶部虚线)(或者这可以是防反射(AR)涂层，或者仅是普通的玻璃或窗口的塑料表面)、基本透明的0.7硼硅酸盐或铝硅酸盐玻璃、黑掩模(在限制区域中)、形成为列的基本透明导电材料诸如图案化的氧化铟锡(ITO)(最大15至200欧姆，具有0.3线宽和0.030间隔)、基本透明的带通孔的0.025电介质层(例如溶胶-凝胶(sol-gel)TIO2)以及形成为行的另一基本透明导电材料层诸如图案化的ITO(最大15至200欧姆，具有0.3线宽和0.030间隔)。这两个图案化的基本透明导电材料层可以是相同或不同的成分。黑掩模(或者任何颜色的掩模)可用于隐藏电互连，诸如定位在触摸屏的边界区域中的金属迹线。电介质层可用作平面化层，使得一层图案化的ITO能够在另一层上形成。注意，这些图案化的ITO层和之间的电介质层在图1a中象征性地例示为表示图案102的虚线。
基本透明的PET组件106可使用压敏粘合剂(PSA)108结合至玻璃组件100。PET组件106的一个用途可以是支持在PET膜底部形成的可用于将玻璃组件和LCD 110屏蔽开的一片连续的0.188ITO(最大500欧姆)，并且还在ITO的屏蔽层与行和列之间提供低容性间隔。从玻璃组件100至PET膜组件100以及任何插入层可一起形成触摸屏。
柔性印刷电路(FPC)104可以使用各向异性的导电膜(ACF)(结合后0.003)结合至玻璃组件100的后侧。导电带112可用于使在PET组件106的底部上形成的ITO接地。0.125厚度的基本透明PSA 114可用于将PET膜组件106结合至可包括0.2的偏振器层115和液晶117的LCD模块。随后可将完整装配安装到外壳118的窗口116中。注意，当完整装配被安装在外壳118中时，玻璃组件100可与窗口的顶部平齐或者微凹(0.3的Z形阶)。
图1b与图1a相似，不同之处在于PET膜组件106没有完全层压到LCD模块110。代之以可在它们之间形成气隙120，并且可围绕触摸屏的周边形成Poron(聚氨酯泡棉)环122。气隙允许在需要修理、更换或升级时更容易地将触摸屏与LCD模块分离。防反射(AR)涂层可涂敷在毗邻于气隙的一个或两个表面以最小化反射和相关联的对比率劣化。
图1c在包括气隙120方面与图1b相似，但它可安装到具有悬垂边框(overhangingbezel)124的机壳中。这较为便宜，因为边框124可以隐藏在触摸屏的边界区域中形成的电互连，这可以消除对黑掩模的需求。另外，这一配置可以比较便宜还因为外壳可以覆盖触摸玻璃的边缘，从而消除对磨光和抛光步骤的需求。玻璃组件132可以与图1的玻璃组件100相等同。
图1d是图1a和1c的混合，其中悬垂边框124可以允许消除黑掩模步骤，并可使用完全层压(见完整的PSA层108)。注意完全层压能够导致在机械性能上更刚性和更强壮的层叠，但具有气隙的好处是它可使部件能够分离和更换。
图2a-2d例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的列和可在独立的PET膜的底侧上形成的行的各种示例性触摸屏传感器面板层叠。
图2a示出可在0.8至1.0的PC外壳218中形成的窗口216。在窗口216内的可以是在其中列迹线可在覆盖玻璃的后侧上形成且行迹线可在独立的PET膜的底侧上形成的层叠。基本透明玻璃组件234具有多个层的层叠，这些层按从上到下的顺序可包括基本透明的AG涂层213(示为在组件顶部的虚线)、基本透明的0.7硼硅酸盐或铝硅酸盐玻璃、黑掩模(在限制区域中)以及形成为列的基本透明导电材料诸如图案化的ITO(最大15至200欧姆，具有0.3线宽和0.030间隔)。注意图案化的ITO层在图2a中象征性地例示为表示图案250的虚线。厚度为0.188的基本透明PET组件236可使用PSA 208结合至玻璃组件234。PET组件236的一个用途可以是支持形成为行的基本透明的导电材料层诸如图案化的ITO(最大75至500欧姆，具有5.0线宽和0.050的间隔)，并且还提供行与列之间的低容性层。这两个图案化的基本透明导电材料层可以是相同或不同的成分。从玻璃组件234至PET膜组件236以及任何插入层可一起形成触摸屏。
FPC 204可以使用ACF(结合后0.003)结合至玻璃组件234的后侧。FPC 226也可以使用ACF结合至可在PET组件236的底部形成上的行。0.125厚度的基本透明PSA 214可用于将PET膜组件236结合至可包括0.2偏振器层215和液晶217的LCD模块210。然后可将完整装配安装到外壳218的窗口216中。注意，当完整装配安装在外壳218中时，玻璃组件234可与窗口的顶部平齐，或者微凹(0.3的Z形阶)。
图2b与图2a相似，不同之处在于PET膜组件236没有完全层压到LCD模块210。代之以在它们之间形成气隙220，并且可围绕触摸屏的周边形成Poron环222。
图2c在包括气隙220方面与图2b相似，但它可安装到具有悬垂边框224的机壳中。
图2d是图2a和2c的混合，其中悬垂边框224可以允许消除黑掩模步骤，并且可使用完全层压(见完整的PSA层208)。
图3a和3b例示按照本发明一个实施例的具有可在单一基片的相对侧上形成的列和行的各种示例性触摸屏传感器面板层叠。
图3a示出近似0.9的基本透明PC(或玻璃)外壳318。使用0.100的基本透明PSA 308结合至外壳318的可以是其中列迹线和行迹线可在单一基片的相对侧上形成的层叠。基本透明玻璃组件338具有多个层的层叠，这些层按从上到下的顺序可包括例如形成为列的基本透明导电材料诸如图案化的ITO(最大15至200欧姆，具有0.3线宽和0.030间隔)、基本透明的0.7硼硅酸盐或铝硅酸盐或化学强化的钠钙玻璃、以及形成为行的基本透明导电材料诸如图案化的ITO(最大75至200欧姆，具有5.0线宽和0.050间隔)。这两个图案化的基本透明导电材料层可以是相同或不同的成分。注意，图案化的ITO层在图3a中象征性地例示为表示图案319和350的虚线。
FPC 330可以使用ACF(结合后0.003)结合至在玻璃组件338的后侧上的行，并且另一个FPC(未在图3a中示出)也可结合至在玻璃的前或顶侧上的列。0.100厚度的透明PSA314可用于将玻璃组件338结合至可包括偏振器层315和液晶317的LCD模块310。
图3b与图3a相似，不同之处在于玻璃组件338没有完全层压到LCD模块310。代之以在它们之间形成气隙320，并且围绕玻璃组件338的周边形成Poron环332。AR膜或涂层可涂敷到触摸玻璃的背面和偏振器的前面以最小化光损耗。
图3c与图3a相似，不同之处在于钝化层301是在图案319和PSA 309之间以及在图案350与PSA 314之间形成的。钝化层301可由二氧化硅形成，并且可用于防止PSA中的酸腐蚀图案化的ITO。钝化层301还可在物理上保护ITO和金属层不受其它腐蚀剂伤害，诸如在制造过程期间来自装配员的汗，并且可以在物理上保护ITO和金属层不会在装配期间受到抓划。应当理解，尽管在ITO图案与PSA之间使用钝化层仅在图3c中示出，但钝化层可以在本文描述和示出的任何实施例中在ITO或金属与PSA之间形成。
图4a-4d例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的行和列的各种示例性触摸屏传感器面板层叠。
图4a示出可在0.8至1.0的基本透明PC外壳418中形成的窗口416。在窗口416内的可以是其中列和行迹线可在覆盖玻璃的后侧上形成的层叠。基本透明玻璃组件442可具有多个层的层叠，这些层按照从上到下的顺序可包括例如基本透明的AG涂层413(示为在组件顶部的虚线)、基本透明的0.7硼硅酸盐或铝硅酸盐玻璃、黑掩模(在限制区域中)、形成为列的基本透明导电材料诸如图案化的ITO(最大15至200欧姆，具有0.3线宽和0.030间隔)、0.025mm带通孔的基本透明的电介质(溶胶-凝胶TIO2)、图案金属(最大0.025欧姆，0.030线宽和0.030的间隔)以及形成为行的0.188的基本透明导电材料层诸如图案化的ITO(最大75至200欧姆，具有0.3线宽和0.030间隔)。图案化的金属可在触摸屏的边界区域中形成以连接行和/或列并且将它们路由到触摸屏的边缘。这两个图案化的基本透明导电材料层可以是相同或不同的成分。注意图案化的ITO层、电介质和金属在图4a中象征性地例示为表示图案444的虚线。基本透明PET组件406可使用基本透明的PSA 408结合至玻璃组件442。PET组件406的一个用途可以是支持一片连续的0.188ITO(500欧姆)。从玻璃组件442至PET膜组件406以及任何插入层可一起形成触摸屏。
FPC 404可以使用ACF(结合后0.003)结合至玻璃组件442的后侧。导电带412也可使用ACF结合至PET组件406以使一片连续的ITO接地。0.125厚度的基本透明PSA 414可用于将PET膜组件406结合至可包括0.2偏振器层415和液晶417的LCD模块410。随后可将完整装配安装到外壳418的窗口416中。注意，当完整装配安装在外壳418中时，玻璃组件442可与窗口的顶部平齐，或者微凹(0.3的Z形阶)。
玻璃上芯片446可连接至玻璃组件442上的金属边界迹线、行和列迹线。玻璃上芯片446可在PET膜组件406上的孔或切口中受到支持，并且可包含传感器面板子系统的一个或多个组件，该传感器面板子系统包括一个或多个处理器、驱动器、模似信道等等。偏振器也可具有孔或切口以允许玻璃上芯片的存在。玻璃上芯片446可使非常小的柔性带连接器附连到触摸屏以与系统处理器通信，因为现在大部分电路可包含在触摸屏上。
图4b与图4a相似，不同之处在于PET膜组件406没有完全层压到LCD模块410。代之以在它们之间形成气隙420，并且可围绕触摸屏的周边形成Poron环422。AR涂层也可用于最小化损耗。
图4c在包括气隙420方面与图4b相似，但它安装到具有悬垂边框的透明PC外壳424中。Poron的密封环422可在边框与玻璃组件442之间形成。
图4d是图4a和4c的混合，其中悬垂边框可允许消除玻璃组件442上的黑掩模，并且可使用完全的层压(见完整的PSA层414)。
图5a和5b例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的列和可在独立的PET膜的底侧上形成的行的各种示例性触摸屏传感器面板层叠。
图5a示出可在0.8至1.0的PC外壳518中形成的窗口516。在窗口516内的可以是在其中列迹线可在覆盖玻璃的后侧上形成且行迹线可在独立的PET膜的底侧上形成的层叠。基本透明的玻璃组件534可具有多个层的层叠，这些层按从上到下的顺序可包括基本透明的AG涂层513(示为组件顶部的虚线)、基本透明的0.7硼硅酸盐或铝硅酸盐玻璃、黑掩模(在限制区域中)以及形成为列的基本透明导电材料诸如图案化的ITO(最大15欧姆，具有0.3线宽和0.030间隔)。注意图案化的ITO层在图5a中象征性地例示为表示图案550的虚线。基本透明PET组件536可使用基本透明的PSA 508结合至玻璃组件534。PET组件536的一个用途可以是支持形成为行的0.188的基本透明导电材料层诸如图案化的ITO(最大150欧姆，具有5.0线宽和0.050间隔)，并且还提供行与列之间的低容性层。这两个图案化的基本透明导电材料层可以是相同或不同的成分。玻璃上芯片546可连接至玻璃组件534上的列迹线和PET膜组件536上的行迹线。玻璃上芯片546可在PET膜组件536上的孔中受到支持，并且可包含传感器面板子系统的一个或多个组件，该传感器面板子系统包括一个或多个处理器、驱动器、模拟信道等等。从玻璃组件534至PET膜组件536、玻璃上芯片546和任何插入层可一起形成触摸屏。
FPC 504可使用0.125厚(最大)的ACF结合至玻璃组件534的后侧。FPC还可使用ACF结合至在PET组件536的底部上形成的行。0.125厚度的基本透明的PSA 514可用于将PET膜组件536结合至可包括0.2偏振器层515和液晶517的LCD模块510。随后可将完整装配安装到外壳518的窗口516中。注意，当完整装配安装在外壳518中时，玻璃组件534可与窗口的顶部平齐，或者微凹(0.3的Z形阶)。
图5b与图5a相似，不同之处在于PET膜组件536没有完全层压到LCD模块510。代之以在它们之间形成气隙520，并且可围绕触摸屏的周边形成Poron环522。
图6a和6b例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的列和可在独立的PET膜的底侧上形成的行的各种示例性触摸屏传感器面板层叠。
图6a示出具有悬垂边框的PC外壳624。Poron密封环622可在边框与基本透明玻璃组件652之间形成。玻璃组件652可以是在其中列迹线可在玻璃组件的后侧上形成且行迹线可在独立的PET膜的底侧上形成的层叠的一部分。玻璃组件652具有多个层的层叠，这些层按照从上到下的顺序可包括基本透明的AG涂层613(示为在组件顶部的虚线)、基本透明的0.7的硼硅酸盐或铝硅酸盐玻璃、黑掩模(在限制区域中)、形成为列的基本透明导电材料诸如图案化的ITO(最大15欧姆，具有0.3线宽和0.030间隔)和图案化的金属(最大0.025欧姆，具有0.030线宽和0.030间隔)。注意，图案化的ITO和金属层在图6a中象征性地例示为表示图案654的虚线。基本透明的PET组件636可使用基本透明的PSA 608结合至玻璃组件652。PET组件636的一个用途可以是支持形成为行的0.188的基本透明导电材料层诸如图案ITO(最大150欧姆，具有5.0线宽和0.050间隔)，并且还提供行与列之间的低容性层。这两个图案化的基本透明导电材料层可以是相同或不同的成分。玻璃上芯片646可连接至玻璃组件652上的列迹线和PET膜组件636上的行迹线。玻璃上芯片646在PET膜组件636上的孔中受到支持，并且可包含传感器面板子系统的一个或多个组件，该传感器面板子系统包括一个或多个处理器、驱动器、模拟信道等等。从玻璃组件652至PET膜组件636、玻璃上芯片646和任何插入层可一起形成触摸屏。
FPC 604可使用0.125厚(最大)的ACF结合至玻璃组件652的后侧。FPC 604也可使用ACF结合至在PET组件636的底部上形成的行。气隙620可在PET膜组件636与可包括0.2的偏振器层615和液晶617的LCD模块610之间形成，并且可围绕触摸屏的周边形成Poron环622。
图6b与图6a相似，不同之处在于PET膜组件636可使用PSA 614完全层压到LCD模块610。
图7a-7d例示按照本发明一个实施例的具有可在单一基片的相对侧上形成的列和行的各种示例性触摸屏传感器面板层叠。
图7a示出0.9的基本透明PC(或玻璃)外壳718。使用0.100的基本透明的PSA 708结合至外壳718的可以是在其中列迹线和行迹线可在单一基片的相对侧上形成的层叠。基本透明玻璃组件756具有多个层的层叠，这些层按照从上到下的顺序可包括形成为列的基本透明导电材料诸如图案化的ITO(最大15至200欧姆，具有0.3线宽和0.030间隔)、基本透明的0.5硼硅酸盐或铝硅酸盐玻璃以及形成为行的基本透明导电材料诸如图案化的ITO(最大75欧姆，具有0.5线宽和0.050间隔)。这两个图案的基本透明导电材料层可以是相同或不同的成分。注意，图案化的ITO层在图7a中象征性地例示为表示图案719和750的虚线。
FPC 730和704可使用0.125厚(最大)的ACF结合至玻璃组件756的任一侧上的列和行。0.100厚度的基本透明PSA 714可用于将玻璃组件756结合至可包括偏振器层715和液晶717的LCD模块710。
图7b与图7a相似，不同之处在于玻璃组件756没有完全层压到LCD模块710。代之以在它们之间形成气隙720，并且围绕玻璃组件756的周边形成Poron环722。
图7c与图7a相似，但额外地示出在FPC 760上的翼板758的实现(见左下角的缩略图)。每个FPC 760通常长而细以提供最大的面板利用率。在图7c的缩略图中，上面的FPC704可以折回，下面的FPC 730也一样可以折回，并且它们可以在面板后面连接在一起。
图7d与图7b相似，但额外地示出在FPC 760上的翼板758的实现(见左下角的缩略图)。每个FPC 760通常长而细以提供最大的面板利用率。在图7c的缩略图中，上面的FPC704可以折回，下面的FPC 730也一样可以折回，并且它们可以在面板后面连接在一起。
图8例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的列和可在独立的PET膜的底侧上形成的行的示例性触摸屏传感器面板层叠。
图8示出可在0.9的PC外壳818中形成的窗口816。在窗口816内的可以是在其中列迹线可在覆盖玻璃的后侧上形成且行迹线可在独立的PET膜的底侧上形成的层叠。基本透明玻璃组件862具有多个层的层叠，这些层按照从上到下的顺序可包括例如基本透明的AG涂层813(示为在组件顶部的虚线)、基本透明的0.7硼硅酸盐或铝硅酸盐玻璃、黑掩模(在限制区域中)、以及形成为列的基本透明导电材料诸如图案化的ITO(最大15欧姆，具有0.3线宽和0.030间隔)。注意，图案化的ITO层在图8中象征性地例示为表示图案864的虚线。厚度为0.188的基本透明的PET组件868可使用PSA 808结合至玻璃组件862。PET组件868的一个用途可以是支持可形成为行的基本透明导电材料层诸如图案化的ITO(最大75欧姆，具有5.0线宽和0.050的间隔)，并且还提供行与列之间的低容性层。这两个图案化的基本透明导电材料层可以是相同或不同的成分。从玻璃组件862至PET膜组件868以及任何插入层可一起形成触摸屏。
FPC 804可使用0.125厚(最大)的ACF结合至玻璃组件862的后侧。FPC 826也可使用ACF结合至可在PET组件868的底部上形成的行。0.125厚度的基本透明PSA 814可用于将PET膜组件868结合至可包括0.2的偏振器层815和液晶817的LCD模块810。随后可将完整装配安装到外壳818的窗口816中。注意，当完整装配安装在外壳818中时，玻璃组件862可与窗口的顶部平齐，或者微凹(0.3的Z形阶)。图8还在缩略图(在图8的左下)中示出有关FPC 860如何连接到传感器面板的额外细节。
图9例示按照本发明一个实施例的可在单一基片的相对侧上形成的列和行的示例性触摸屏传感器面板层叠。
图9示出可在0.9的PC外壳918中形成的窗口916。在窗口916内的可以是在其中列迹线和行迹线可在单一基片的相对侧上形成的层叠。基本透明玻璃组件972具有多个层的层叠，这些层按照从上到下的顺序可包括基本透明的AG涂层、基本透明的0.5硼硅酸盐或铝硅酸盐玻璃、以及黑掩模(在限制区域中)。基本透明玻璃组件976具有多个层的层叠，这些层按照从上到下的顺序可包括形成为列的基本透明导电材料诸如图案化的ITO(最大15欧姆，具有0.3线宽和0.030的间隔)、基本透明的0.5的硼硅酸盐或铝硅酸盐玻璃、以及形成为行的基本透明导电材料诸如图案化的ITO(最大75欧姆，具有0.5线宽和0.050的间隔)。这两个图案化的基本透明导电材料层可以是相同或不同的成分。PSA 908可用于将玻璃组件972和976结合在一起。注意，图案化的ITO在图9中象征性地例示为表示图案978和980的虚线。
FPC可使用0.125厚(最大)的AFC结合至在玻璃组件976的任一侧上的列和行。0.125厚度的基本透明PSA 914可用于将玻璃组件976结合至其中可包括偏振器层915和液晶917的LCD模块910。
图10例示按照本发明一个实施例的具有可在覆盖玻璃的后侧上形成的列和可在独立的玻璃基片的顶侧上形成的行的示例性触摸屏传感器面板层叠。
图10示出可在0.9的PC外壳1018中形成的窗口1016。在窗口1016内的可以是在其中列迹线可在覆盖玻璃的后侧上形成且行迹线可在独立的PET膜的顶侧上形成的层叠。基本透明玻璃组件1082可具有多个层的层叠，这些层按照从上到下的顺序可包括基本透明的AG涂层1013(示为在组件顶部的虚线)、基本透明的0.5的硼硅酸盐或铝硅酸盐玻璃、黑掩模(在限制区域中)、和可形成为列的基本透明导电材料诸如图案化的ITO(最大15欧姆，具有0.3线宽和0.030间隔)。基本透明玻璃组件1084具有多个层的层叠，这些层按照从上到下的顺序可包括形成为列的基本透明导电材料诸如图案化的ITO(最大15欧姆，具有0.3线宽和0.030的间隔)、基本透明的0.5硼硅酸盐或铝硅酸盐玻璃、以及一片连续的基本透明ITO(最大500欧姆)。这两个图案化的基本透明导电材料层可以是相同或不同的成分。玻璃组件1082和1084可用基本透明的PSA 1008结合在一起。注意，图案化的ITO在图10中象征性地例示为表示图案1064和1086的虚线。从玻璃组件1082至玻璃组件1084以及任何插入层可一起形成触摸屏。
FPC可使用0.125厚(最大)的ACF结合至玻璃组件1082的后侧和玻璃组件1084的顶侧。0.125厚度的基本透明的PSA 1014可用于将玻璃组件1084结合至可包括偏振器层1015和液晶1017的LCD模块1010。随后可将完整装配安装到外壳1018中的窗口1016中。注意，当完整装配安装在外壳1018中时，玻璃组件1082可与窗口的顶部平齐，或者微凹(0.3的Z形阶)。
图11a-11c例示按照本发明一个实施例的具有可在单一基片的相对侧上形成的列和行的各种示例性触摸屏传感器面板层叠。
图11a示出近似0.9的基本透明PC外壳1118。当正在注模外壳1118时，可将基本透明的硬膜或玻璃1188和黑掩模1190(在限制区域中)插入模中以提供硬表面和隐藏性质(其中放置黑掩模)。使用0.100的基本透明PSA 1108结合至外壳1118的可以是在其中列迹线和行迹线可在单一基片的相对侧上形成的层叠。基本透明玻璃组件1176具有多个层的层叠，这些层按照从上到下的顺序可包括形成为列的基本透明导电材料诸如图案化的ITO(最大15欧姆，具有0.3线宽和0.030间隔)、基本透明的0.5的硼硅酸盐或铝硅酸盐玻璃、和形成为行的基本透明导电材料诸如图案化的ITO(最大75欧姆，具有5.0线宽和0.050间隔)。这两个图案的基本透明导电材料层可以是相同或不同的成分。注意，图案ITO层在图11a中象征性地例示为表示图案1178和1180的虚线。
FPC可使用0.125厚(最大)的ACF结合至玻璃组件1176的任一侧的列和行。0.100厚度的基本透明的PSA 1114可用于将玻璃组件1176结合至可包括偏振器层1115和液晶1117的LCD模块1110。
图11b与图11a相似，不同之处在于没有在外壳1118中形成硬膜或玻璃和黑掩模。
图11c与图11b相似，不同之处在于玻璃组件1176没有完全层压到LCD模块1110。代之以在它们之间形成气隙1120，并且围绕玻璃组件1176的周边形成Poron环1122。
图12例示按照本发明一个实施例的示例性FPC层叠的侧视图。图12示出用于在FPC上的薄翼板或片的FPC层叠，它可包括释放衬板1210、0.025的ACF和PSA 1208、0.012的通孔镀层1206、0.018的铜1204、0.012的用于铜的粘合剂1202、0.025的聚酰胺基片1212、0.012的用于铜的粘合剂1202、0.018的铜1204、0.012的通孔镀层1206、0.025的ACF和PSA 1208、和释放衬板1210。
图13a和13b例示按照本发明一个实施例的示例性FPC设计的顶视图。图13a示出连接至驱动行的FPC的ACF侧的视图，其中包含ACF板1306，并且FPC可在ACF板1306处使用0.5宽和0.025厚的ACF 1302结合至玻璃基片。然而，具有0.100宽度和0.100间隔的迹线1304可使用1.3宽和0.025厚的绝缘PSA 1308结合至玻璃基片。图13b示出可连接到驱动行的FPC迹线的非ACF侧的顶视图，其中包括可由0.018厚的绝缘PSA 1308覆盖的迹线1304。
图14例示按照本发明一个实施例的用于连接至传感器面板的行和列的示例性FPC设计的顶视图。图14示出驱动FPC 1402和感测FPC 1400的细节，其中包括驱动柔性带尾1404和零插入力(ZIF)连接器1406。
图15例示按照本发明一个实施例的示例性FPC层叠的侧视图。图15示出用于FPC上的薄翼板或片的FPC驱动层层叠1500，它可包括0.012的覆盖层(coverlay)1514、0.012的粘合剂1502、0.025的ACP 1508、0.012的通孔镀层1506、0.018的铜1504、0.012的用于铜的粘合剂1502、0.025的聚酰胺基片1512、0.012的用于铜的粘合剂1502、0.018的铜1504、0.012的通孔镀层1506、0.012的粘合剂1502和0.012的覆盖层1514。
图16a-16c例示按照本发明一个实施例的示例性FPC设计的顶视图。图16a示出连接至驱动行的FPC的非ACF侧的视图1600，其中包括具有0.025厚度的ACP的ACF衬垫1606，其中FPC可在ACF衬垫处结合至玻璃基片。然而具有0.075宽度和0.075间隔的迹线可使用0.025厚的绝缘PSA 1612结合至玻璃基片。图16b示出连接到驱动行的FPC迹线的ACF侧的顶视图1618，所述FPC迹线包括由0.025厚的绝缘PSA 1608覆盖的具有0.075宽度和0.075间隔的迹线1604。图16c示出带有用于分离ITO行图案1616的可视对准标记1614的ITO图案配准1620。
图17a例示按照本发明一个实施例的用于触摸屏传感器面板的示例性的部分制造好的盖体。图17a示出用于带角的单独零件的塑料顶部外壳1700(例如注模制成的0.80厚度的聚碳酸酯或丙烯酸树脂)，其中外壳1700具有可在顶上形成的硬涂层/防眩光涂层1704和可有选择地涂敷到外壳1702内侧的黑掩模1706。
图17b例示按照本发明一个实施例的示例性顶部PET膜。首先，ITO 1712(例如具有每平方40至500欧姆的电阻系数)可使用标准光刻和蚀刻技术溅射到PET膜1710(例如电介质常数为3至4且厚度大约25至75微米的PET或聚合体)上并被图案化(例如图案化成100微米线宽和间隔)。接着，金属层(丝网印刷的银墨)1714(例如具有每平方最大1欧姆的电阻系数)可涂敷在ITO并被图案化(例如图案化成200微米线宽和间隔)。一片保护性的黑碳1716(例如具有0.25线宽和间隔)随后可印刷在银墨迹线之上以用作连接器接触的保护涂层。尾覆盖层1718(例如具有厚度25至75微米的PET)随后可在银墨迹线之上形成用于保护。一片PSA 1720(例如具有25微米的厚度)和牺牲衬板随后在PET膜和ITO之上形成。底部PET膜可使用相同的过程来形成。
图17c例示按照本发明一个实施例的具有可在两个独立的顶部PET膜1708和底部PET膜1724上形成的列和行的示例性触摸屏传感器面板层叠。光学透明粘合剂1726可用于结合在覆盖1700和可包括LCD偏振器1728、LCD顶部玻璃1730和LCD底部玻璃1732的LCD模块之间的顶部和底部PET膜。
图18例示按照本发明实施例的可用于上述触摸屏层叠的示例性计算系统1800。可包括传感器面板1842和显示设备1840的触摸屏1842可通过在传感器面板上集成地形成的连接器或者使用柔性电路连接至计算系统1800中的其它组件。计算系统1800可包括一个或多个面板处理器1802和外设1804以及面板子系统1806。一个或多个处理器1802可包括例如ARM968处理器或其它具有相似功能性和能力的处理器。然而在其它实施例中面板处理器功能性可以代替地由专用逻辑诸如状态机实现。外设1804可包括但不限于随机存取存储器(RAM)或其它类型的存储器或存储、监视计时器等等。
面板子系统1806可包括但不限于一个或多个模拟信道1808、信道扫描逻辑1810和驱动器逻辑1814。信道扫描逻辑1810可访问RAM 1812、自治地从模拟信道读取数据并为模拟信道提供控制。该控制可包括将多点触摸面板1824的列多路复用至模拟信道1808。另外，信道扫描逻辑1810控制驱动器逻辑和被有选择地应用于多点触摸面板1824的行的激励信号。在一些实施例中，面板子系统1806、面板处理器1802和外设1804可集成到单一专用集成电路(ASIC)中。
驱动器逻辑1814可提供多个面板子系统输出1816并且可提供驱动高电压驱动器1818的专用接口。高电压驱动器1818提供从低电压电平(例如互补金属氧化物半导体(CMOS)电平)移至更高电压电平的电平，为噪声减少提供较佳的信噪(S/N)比。面板子系统输出1816可被发送至解码器1820和电平移动器/驱动器1838，后者通过专用接口有选择地将一个或多个高电压驱动器输出连接至一个或多个面板行输入1822并且允许在高电压驱动器1818中使用较少的高电压驱动器电路。每个面板行输入1822可驱动多点触摸面板1824中的一个或多行。在一些实施例中，高电压驱动器1818和解码器1820可集成到单一ASIC中。然而，在其它实施例中，高电压驱动器1818和解码器1820可集成到驱动器逻辑1814中，而在又一些实施例中则可以完全消除高电压驱动器1818和解码器1820。
计算系统1800还可包括主机处理器1828，用于接收来自面板处理器1802的输出并基于该输出执行动作，这些动作包括但不限于移动诸如光标或指示器之类的对象、滚动或扫视、调整控制设置、打开文件或文档、察看菜单、作出选择、执行指令、操作连接到主机设备的外设、应答电话呼叫、发出电话呼叫、终止电话呼叫、改变音量或音频设置、存储诸如地址、常拨号码、接收呼叫、丢失呼叫之类的有关电话通信的信息、登录到计算机或计算机网络上、允许授权个人访问计算机或计算机网络的受限制区域、加载关联于用户的优选计算机桌面配置的用户简档、允许访问web内容、启动特定程序、加密或解码消息等等。主机处理器1828还可执行与面板处理无关的其它功能，并且可耦接至程序存储1832和显示设备1840诸如用于为设备用户提供用户界面(UI)的LCD。
如上所述，多点触摸面板1824在一些实施例中可包括具有由电介质分隔开的多个行迹线或驱动线和多个列迹线或感测线的容性感测介质。在一些实施例中，电介质材料是透明的，诸如PET或玻璃。行和列迹线可由透明的导电介质诸如ITO或氧化锑锡(ATO)形成，但也可使用其它不透明的材料诸如铜。在一些实施例中，行和列迹线相互垂直，但在其它实施例中不垂直取向是可能的。例如，在极坐标系统中，感测线是同心圆而驱动线是径向延伸线(或反之亦然)。因此应当理解，如本文使用的术语“行”和“列”、“第一维度”和“第二维度”或者“第一轴”和“第二轴”旨在不仅包含正交网格，还包括具有第一和第二维度的其它几何配置的交叉迹线(例如极坐标配置方案中的同心和径向线)。
在迹线的“交叉点”，迹线可在彼此上下(但没有使它们彼此直接电接触)通过，迹线实质上形成两个电极。行和列迹线的每个交叉点表示容性感测节点并且可视为图片元素(像素)1826，它在多点触摸面板1824视为捕捉触摸的“图像”时特别有用。(换言之，在面板子系统1806已经确定在多点触摸面板1824中的每个触摸传感器处是否已经检测到触摸事件之后，在其中发生了触摸事件的多点触摸面板中的触摸传感器的图案可视为触摸的“图像”(例如触摸面板的手指的图案))。当两个电极处于不同电位时，每个像素具有固有的自电容或在像素的行与列电极之间形成的互电容。如果AC信号应用于这些电极之一，诸如通过以特定频率的AC电压激励行电极，可在电极之间形成电场和AC或信号电容，称为Csig。通过测量Csig的变化，可检测到靠近或放在多点触摸面板1824上的手指或其它物体的存在。多点触摸面板1824的列可驱动面板子系统1806中的一个或多个模拟信道1808。在一些实施例中，每个列可耦合至一个专用的模拟信道1808。然而，在其它实施例中，列通过模拟开关能够耦接至较少数量的模拟信道1808。
上述触摸屏层叠可有利地在图18的系统中使用以提供具有空间效率的触摸传感器面板和UI。
图19a例示按照本发明实施例可包括触摸屏层叠和上述计算系统的示例性移动电话1936。PSA 1934可用于将传感器面板1924结合至显示设备(例如LCD模块)1930。图19b例示按照本发明实施例的可包括触摸屏层叠和上述计算系统的示例性数字音频/视频播放器1940。图19a和19b的移动电话和数字音频/视频播放器可有利地从上述触摸屏层叠得益，因为触摸屏层叠能让这些设备更小且更便宜，这些是对消费者愿望和商业成功有着显著影响的重要消费因素。
尽管已经结合本发明的实施例并参考附图完全描述了本发明，但要注意，各种改变或修改对于本领域技术人员将变得显而易见。这样的改变和修改要理解为包括在由所附权利要求书定义的本发明的范围。

Claims (17)

1.一种多点触摸传感器面板，包括：
透明覆盖，具有能够被触摸的前侧和与所述前侧相对的后侧；
在所述透明覆盖的后侧上形成的第一基本透明导电材料的多个第一迹线；
基片，具有粘附到所述透明覆盖的后侧的前表面和与所述前表面相对的后表面；
在所述基片的后表面上形成的第二基本透明材料的多个第二迹线；以及
耦接到所述基片的显示模块，在所述基片和所述显示模块之间布置有气隙；
其中，所述基片形成所述多个第一迹线与所述多个第二迹线之间的电介质材料；并且
其中，所述多个第一迹线和所述多个第二迹线取向为在被所述电介质材料分隔开的交叉位置处彼此交叉，所述交叉位置形成用于检测所述透明覆盖的前侧上的一个或多个触摸的互电容传感器。
2.根据权利要求1所述的多点触摸传感器面板，还包括与所述基片不同的粘合剂，并且所述粘合剂被配置为将所述基片粘附到所述透明覆盖，其中所述粘合剂包括压敏粘合剂。
3.根据权利要求1所述的多点触摸传感器面板，其中，所述第一基本透明导电材料和所述第二基本透明导电材料是相同的。
4.根据权利要求1所述的多点触摸传感器面板，还包括与所述基片的后侧上的多个第二迹线耦合的柔性印刷电路(FPC)。
5.根据权利要求4所述的多点触摸传感器面板，还包括与所述透明覆盖的后侧上的多个第一迹线耦合的另一柔性印刷电路(FPC)。
6.根据权利要求1所述的多点触摸传感器面板，还包括：
与所述多个第一迹线或所述多个第二迹线中的至少一个耦合的柔性印刷电路(FPC)，以及
与所述基片不同的粘合剂，其中所述粘合剂是压敏粘合剂并且被配置为将所述基片的一部分粘附到所述显示模块的偏振器。
7.根据权利要求6所述的多点触摸传感器面板，其中，所述柔性印刷电路板与所述多个第二迹线耦合，并且各向异性的导电膜被用于将所述柔性印刷电路至少结合到所述基片的后侧。
8.一种用于形成多点触摸传感器面板的方法，包括：
在透明覆盖的后侧上形成第一基本透明导电材料的多个第一迹线；
在基片的与前表面相对的后表面上形成第二基本透明材料的多个第二迹线；
将显示模块耦接到所述基片，在所述显示模块和所述基片之间形成有气隙；以及
使所述多个第一迹线和所述多个第二迹线取向为在被用作电介质材料的所述基片分隔开的交叉位置处彼此交叉，所述交叉位置形成用于检测所述透明覆盖的前侧上的一个或多个触摸的互电容传感器。
9.一种多点触摸传感器面板，包括：
具有能够被触摸的前侧和与所述前侧相对的后侧的第一组件；
在所述第一组件的后侧上形成的第一基本透明导电材料的多个第一迹线；
具有粘合到所述第一组件的背侧的前表面和与所述前表面相对的后表面的第二组件；
形成在所述第二组件的后表面上的第二基本透明导电材料的多个第二迹线；
至少布置在所述多个第一迹线之上的钝化层；以及
耦接到所述第二组件的显示模块，在所述显示模块和所述第二组件之间布置有气隙；
其中所述第二迹线和所述第一迹线取向为在被所述第二组件分隔开的交叉位置处彼此交叉，所述交叉位置形成用于检测所述第一组件的前侧上的一个或多个触摸的互电容传感器。
10.根据权利要求9所述的多点触摸传感器面板，其中，所述第一基本透明导电材料和第二基本透明导电材料是相同的。
11.根据权利要求9所述的多点触摸传感器面板，其中，粘合剂用于将所述第一组件耦合到所述第二组件，并且所述钝化层至少将所述多个第一迹线与所述粘合剂分隔开。
12.根据权利要求11所述的多点触摸传感器面板，其中所述粘合剂包括压敏粘合剂，并且所述钝化层至少防止所述压敏粘合剂中的酸破坏所述多个第一迹线。
13.根据权利要求9所述的多点触摸传感器面板，其中，所述第二组件包括聚对苯二甲酸乙二酯PET材料。
14.根据权利要求9所述的多点触摸传感器面板，其中，所述显示模块使用粘合剂耦合到第二组件，其中所述粘合剂布置在所述钝化层和第二组件之间，使得所述钝化层至少将所述多个第一迹线与所述粘合剂分隔开。
15.根据权利要求9所述的多点触摸传感器面板，所述多点触摸传感器面板结合在计算系统内。
16.根据权利要求15所述的多点触摸传感器面板，所述计算系统结合在移动电话内。
17.根据权利要求15所述的多点触摸传感器面板，所述计算系统结合在数字音频播放器内。
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