CN101763202A - Capacitive touch display panel and capacitive touch display substrate - Google Patents

Abstract

The invention discloses a capacitive touch display panel, which comprises a display panel, a touch control panel and a touch control unit, wherein the display panel comprises a sensing area; a touch sensing unit disposed in the sensing region of the display panel, the touch sensing unit comprising: the sensor comprises a plurality of first sensing serials and a plurality of second sensing serials, wherein the first sensing serials are arranged along a first direction and comprise a plurality of first sensing pads which are mutually and electrically connected; a plurality of second sensing serials arranged along a second direction, wherein each second sensing serials comprises a plurality of second sensing pads which are mutually and electrically connected; and a plurality of floating gate ESD protection devices disposed in the sensing region of the display panel, wherein each floating gate ESD protection device is disposed between two adjacent but electrically unconnected first sensing pads and two adjacent but electrically unconnected second sensing pads. The capacitive touch device is provided with the floating grid electrostatic protection element in the sensing region, so that the electrostatic protection capability of the capacitive touch device can be effectively improved.

Description

Translated fromChinese

电容式触控显示面板及电容式触控显示基板Capacitive touch display panel and capacitive touch display substrate

技术领域technical field

本发明系关于一种电容式触控显示面板及一种电容式触控基板，尤指一种于感测区内设置浮动栅极静电防护元件的电容式触控显示面板及电容式触控基板。The present invention relates to a capacitive touch display panel and a capacitive touch substrate, in particular to a capacitive touch display panel and a capacitive touch substrate in which a floating gate electrostatic protection element is arranged in a sensing area .

背景技术Background technique

在现今各式消费性电子产品的市场中，行动电话(mobile phone)、卫星导航系统(GPS)与数位影音播放器等可携式电子产品已广泛的使用触控面板(touch panel)作为人机资料沟通介面。由于目前消费性电子产品的设计讲求轻薄短小，在产品设计上希望能节省占空间的按键与滑鼠等传统输入装置，故采用触控方式输入。此外，随着触控作业系统软体的推出，可望将带动触控面板的另一波需求。In today's market of various consumer electronic products, portable electronic products such as mobile phones, satellite navigation systems (GPS) and digital audio-visual players have widely used touch panels as man-machine Data communication interface. Since the current design of consumer electronic products emphasizes thinness and compactness, traditional input devices such as buttons and mice are expected to save space in product design, so touch input is adopted. In addition, with the introduction of touch operating system software, it is expected to drive another wave of demand for touch panels.

现今的触控面板主要以电容式触控面板(capacitive touch panel)为主流，然而在电容式触控面板的制造工艺中或使用过程中常会因为摩擦或其它因素而产生静电荷(electrostatic charge，ESD)，而过多的静电荷将可能导致触控感测单元的损坏，而降低电容式触控面板的良率与可靠度。Today's touch panels are mainly capacitive touch panels (capacitive touch panels) as the mainstream, however, electrostatic charge (ESD) is often generated due to friction or other factors during the manufacturing process or use of capacitive touch panels. ), and excessive electrostatic charges may cause damage to the touch sensing unit, thereby reducing the yield and reliability of the capacitive touch panel.

发明内容Contents of the invention

本发明的目的之一在于提供一种电容式触控显示面板及一种电容式触控基板，以提升静电防护能力。One of the objectives of the present invention is to provide a capacitive touch display panel and a capacitive touch substrate to improve the electrostatic protection capability.

本发明的一较佳实施例提供一种电容式触控显示面板，包括一显示面板、一触控感测单元与多个浮动栅极静电防护元件。显示面板包括一感测区。触控感测单元设置于显示面板的感测区内，且触控感测单元包括多条沿一第一方向设置的第一感测串列，以及多条沿一第二方向设置的第二感测串列。各第一感测串列包括彼此互相电连接的多个第一感测垫，且各第二感测串列包括彼此互相电连接的多个第二感测垫。浮动栅极静电防护元件设置于显示面板的感测区内，其中各浮动栅极静电防护元件设置于相邻但未电连接的两个第一感测垫与相邻但未电连接的两个第二感测垫之间。A preferred embodiment of the present invention provides a capacitive touch display panel, which includes a display panel, a touch sensing unit and a plurality of floating gate electrostatic protection elements. The display panel includes a sensing area. The touch sensing unit is arranged in the sensing area of the display panel, and the touch sensing unit includes a plurality of first sensing series arranged along a first direction, and a plurality of second sensing series arranged along a second direction. sensing series. Each first sensing series includes a plurality of first sensing pads electrically connected to each other, and each second sensing series includes a plurality of second sensing pads electrically connected to each other. The floating gate electrostatic protection elements are arranged in the sensing area of the display panel, wherein each floating gate electrostatic protection element is arranged on two adjacent but not electrically connected first sensing pads and two adjacent but not electrically connected first sensing pads. between the second sensing pads.

本发明的另一较佳实施例提供一种电容式触控基板，包括一基板、一触控感测单元与多个浮动栅极静电防护元件。基板具有一感测区。触控感测单元设置于基板的感测区内，且触控感测单元包括多条沿一第一方向设置的第一感测串列，以及多条沿一第二方向设置的第二感测串列。各第一感测串列包括彼此互相电连接的多个第一感测垫，且各第二感测串列包括彼此互相电连接的多个第二感测垫。浮动栅极静电防护元件设置于基板的感测区内，其中各浮动栅极静电防护元件设置位于相邻但未电连接的两个第一感测垫与相邻但未电连接的两个第二感测垫之间。Another preferred embodiment of the present invention provides a capacitive touch substrate, including a substrate, a touch sensing unit, and a plurality of floating gate electrostatic protection components. The substrate has a sensing area. The touch sensing unit is disposed in the sensing area of the substrate, and the touch sensing unit includes a plurality of first sensing series arranged along a first direction, and a plurality of second sensing series arranged along a second direction. Measure series. Each first sensing series includes a plurality of first sensing pads electrically connected to each other, and each second sensing series includes a plurality of second sensing pads electrically connected to each other. The floating gate electrostatic protection elements are arranged in the sensing area of the substrate, wherein each floating gate electrostatic protection element is arranged on two adjacent but not electrically connected first sensing pads and two adjacent but not electrically connected first sensing pads. between the two sensing pads.

由于本发明的电容式触控装置于感测区内设置浮动栅极静电防护元件，因此可有效增加电容式触控装置的静电防护能力。Since the capacitive touch device of the present invention is provided with a floating gate electrostatic protection element in the sensing region, the electrostatic protection capability of the capacitive touch device can be effectively increased.

附图说明Description of drawings

图1绘示了本发明一较佳实施例的电容式触控装置的示意图；FIG. 1 shows a schematic diagram of a capacitive touch device according to a preferred embodiment of the present invention;

图2绘示了本实施例的浮动栅极静电防护元件的上视示意图；FIG. 2 shows a schematic top view of the floating gate electrostatic protection element of this embodiment;

图3绘示了本实施例的浮动栅极静电防护元件沿图2的A-A’剖线的剖面示意图；Fig. 3 depicts a schematic cross-sectional view of the floating gate electrostatic protection element of the present embodiment along the line A-A' of Fig. 2;

图4绘示了本发明的另一实施例的浮动栅极静电防护元件的剖面示意图；FIG. 4 is a schematic cross-sectional view of a floating gate electrostatic protection device according to another embodiment of the present invention;

图5与图6绘示了本发明一较佳实施例的连线区静电防护元件的示意图；FIG. 5 and FIG. 6 illustrate a schematic diagram of an electrostatic protection component in a wiring area according to a preferred embodiment of the present invention;

图7绘示了本发明另一较佳实施例的连线区静电防护元件的示意图；Fig. 7 shows a schematic diagram of an electrostatic protection component in the connection area according to another preferred embodiment of the present invention;

图8绘示了本发明一较佳实施例的连线区静电防护元件的示意图；FIG. 8 shows a schematic diagram of an electrostatic protection component in a connection area according to a preferred embodiment of the present invention;

图9绘示了本发明另一较佳实施例的连线区静电防护元件的示意图；FIG. 9 shows a schematic diagram of an electrostatic protection component in the connection area according to another preferred embodiment of the present invention;

图10绘示了本发明一较佳实施例的电容式触控装置的示意图；FIG. 10 shows a schematic diagram of a capacitive touch device according to a preferred embodiment of the present invention;

图11绘示了本发明另一较佳实施例的电容式触控装置的示意图；FIG. 11 shows a schematic diagram of a capacitive touch device according to another preferred embodiment of the present invention;

图12绘示了本发明又一较佳实施例的电容式触控装置的示意图。FIG. 12 is a schematic diagram of a capacitive touch device according to another preferred embodiment of the present invention.

主要元件符号说明：Description of main component symbols:

10     电容式触控装置        12   显示面板10Capacitive touch device 12 Display panel

12S    感测区                12F  连线区12S sensing area 12F connection area

12C    连接垫区              121  阵列基板12CConnection pad area 121 Array substrate

122    彩色滤光片基板        123  液晶层122Color filter substrate 123 Liquid crystal layer

12A    第一表面              12B  第二表面12AFirst Surface 12B Second Surface

14     触控感测单元          16   第一感测串列14Touch sensing unit 16 The first sensing series

16S    第一感测垫            16B  桥接线16SFirst sensing pad 16B Bridge wire

18     第二感测串列          18S  第二感测垫18Second sensing series 18S Second sensing pad

18B    桥接线                20   浮动栅极静电防护元件18B Bridge wire 20 Floating gate electrostatic protection component

22     导电图案层            24   介电层22Conductive pattern layer 24 Dielectric layer

26     半导体图案层          28   绝缘层26Semiconductor pattern layer 28 Insulation layer

30     连接线                32   防护环30 Connectingwire 32 Protective ring

32T    放电尖端              34   连线区静电防护元件32T Discharge tip 34 ESD protection components in connection area

341    栅极                  342  源极/漏极341 Gate 342 Source/Drain

343    源极/漏极             36   连接垫343 Source/Drain 36 Connection Pads

38     连接垫区静电防护元    38T  放电尖端件38 Electrostatic protection element forconnection pad area 38T Discharge tip

15     彩色滤光层            S    辅助基板15 Color filter layer S Auxiliary substrate

具体实施方式Detailed ways

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较佳实施例，并配合所附图式，详细说明本发明的构成内容及所欲达成的功效。In order to enable those who are familiar with the technical field of the present invention to further understand the present invention, the preferred embodiments of the present invention are listed below, together with the attached drawings, to describe in detail the composition of the present invention and the desired effects .

请参考图1，图1绘示了本发明的一较佳实施例的电容式触控装置的示意图。图1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。在本实施例中，电容式触控装置可为一具有触控输入及显示双重功能的电容式触控显示面板，亦即电容式触控感测单元整合于一显示面板例如一液晶显示面板的制造工艺中，但并不以此为限。举例而言，电容式触控装置亦可单纯具有触控输入功能的电容式触控基板，并可利用贴附方式与一显示面板组合而形成一电容式触控显示面板。如图1所示，本实施例的电容式触控装置10包括一显示面板12、一触控感测单元14设置于显示面板12上，以及多个浮动栅极静电防护元件20设置于显示面板12上。显示面板12上定义出一感测区(sensing region)12S。值得说明的是若电容式触控装置10为单纯具有触控输入功能的电容式触控基板，则显示面板12可由一基板，例如一玻璃基板、一塑胶基板或一印刷电路板等加以替换，应用于其它需要触控输入的装置上。触控感测单元14设置于显示面板12的感测区12S内，且触控感测单元14包括多条沿一第一方向(如图1的垂直方向)设置的第一感测串列16，以及多条沿一第二方向(如图1所示的水平方向)设置的第二感测串列18。各第一感测串列16包括彼此互相电连接的多个第一感测垫16S，且各第二感测串列18包括彼此互相电连接的多个第二感测垫18S，藉此当进行触控输入时，使用者的手指或其它输入装置可与对应的部分第一感测垫16S与第二感测垫18S形成电容，而达到触控输入的效果。浮动栅极静电防护元件20设置于感测区12S内，且各浮动栅极静电防护元件20分别设置位于相邻但未电连接的两个第一感测垫16S与相邻但未电连接的两个第二感测垫18S之间。浮动栅极静电防护元件20具有静电防护功能，下文将详述浮动栅极静电防护元件20的结构及其静电防护原理。Please refer to FIG. 1 , which illustrates a schematic diagram of a capacitive touch device according to a preferred embodiment of the present invention. FIG. 1 is only a schematic diagram for easier understanding of the present invention, and its detailed proportions can be adjusted according to design requirements. In this embodiment, the capacitive touch device can be a capacitive touch display panel with dual functions of touch input and display, that is, the capacitive touch sensing unit is integrated in a display panel such as a liquid crystal display panel. In the manufacturing process, but not limited to this. For example, the capacitive touch device can also simply have a capacitive touch substrate with a touch input function, and can be combined with a display panel by an attachment method to form a capacitive touch display panel. As shown in FIG. 1 , the capacitive touch device 10 of this embodiment includes adisplay panel 12, atouch sensing unit 14 disposed on thedisplay panel 12, and a plurality of floating gateelectrostatic protection components 20 disposed on the display panel. 12 on. Asensing region 12S is defined on thedisplay panel 12 . It is worth noting that if the capacitive touch device 10 is a capacitive touch substrate with only a touch input function, thedisplay panel 12 can be replaced by a substrate, such as a glass substrate, a plastic substrate or a printed circuit board, etc. Applied to other devices that require touch input. Thetouch sensing unit 14 is disposed in thesensing region 12S of thedisplay panel 12, and thetouch sensing unit 14 includes a plurality offirst sensing series 16 disposed along a first direction (such as the vertical direction in FIG. 1 ). , and a plurality ofsecond sensing series 18 arranged along a second direction (horizontal direction as shown in FIG. 1 ). Eachfirst sensing series 16 includes a plurality offirst sensing pads 16S electrically connected to each other, and eachsecond sensing series 18 includes a plurality ofsecond sensing pads 18S electrically connected to each other, thereby when When performing touch input, the user's finger or other input device can form capacitance with the corresponding part of thefirst sensing pad 16S and thesecond sensing pad 18S, so as to achieve the effect of touch input. The floating gateelectrostatic protection element 20 is disposed in thesensing region 12S, and each floating gateelectrostatic protection element 20 is respectively provided with two adjacent but not electrically connectedfirst sensing pads 16S and an adjacent but not electrically connectedfirst sensing pad 16S. Between the twosecond sensing pads 18S. The floating gateelectrostatic protection element 20 has an electrostatic protection function, and the structure and electrostatic protection principle of the floating gateelectrostatic protection element 20 will be described in detail below.

请继续参考图2与图3，其为图1位于浮动栅极静电防护元件的区域放大示意图，并一并参考图1。图2绘示了本实施例的浮动栅极静电防护元件的上视示意图，图3绘示了本实施例的浮动栅极静电防护元件沿图2的A-A’剖线的剖面示意图。如图2与图3所示，各浮动栅极静电防护元件20包括一导电图案层(例如一金属图案层)22、一介电层24、一半导体图案层(例如一非晶硅层)26，连接相邻的第一感测垫16S或是第二感测垫18S。此外，一绝缘层28可覆盖于浮动栅极静电防护元件20与相邻的第一感测垫16S及第二感测垫18S上，达到保护的效果。各浮动栅极静电防护元件20的半导体图案层26分别与相邻但未电连接的两个第一感测垫16S以及与相邻但未电连接的两个第二感测垫18S接触并部分重迭。导电图案层22分别与第一感测垫16S以及第二感测垫18S部分重迭。在本实施例中，导电图案层22位于显示面板12上、介电层24位于导电图案层22上、半导体图案层26位于介电层24上、第一感测垫16S与第二感测垫18S位于半导体图案层26上，且绝缘层28覆盖于第一感测垫16S、第二感测垫18S与半导体图案层26上。介电层24的材料可为各式有机或无机的介电材料，且以low-k介电材料为较佳，藉此可降低静电可能造成的损害。此外，介电层24的厚度可视需要作调整，且介电层24亦可制作成图案层，达到覆盖导电图案层22即可。在本实施例的浮动栅极静电防护元件20中，导电图案层22发挥栅极的作用、介电层24发挥栅极介电层的作用、半导体图案层26作为通道之用，而相邻但未电连接的两个第一感测垫16S以及与相邻但未电连接的两个第二感测垫18S则作为源极/漏极。藉由浮动栅极静电防护元件20的设置，当电容式触控装置10因摩擦或其它不可预期因素而使得静电荷累积在触控感测单元14时，大量的静电荷会诱发(induce)浮动栅极静电防护元件20的开启，也就是说第一感测垫16S或第二感测垫18S上大量的静电荷会耦合导电图案层22形成电位，因而开启半导体图案层26，使浮动栅极静电防护元件20得以开启。此时累积在某特定第一感测垫16S或第二感测垫18S的静电荷可快速地传导至相邻的第一感测垫16S或第二感测垫18S，而若静电荷的量仍然过多时，相邻的浮动栅极静电防护元件20仍会被诱发而开启而使静电荷继续向相邻的第一感测垫16S或第二感测垫18S传导。如此一来，可避免过大的静电将用以连接相邻两个第一感测垫16S的桥接线16B，或是用以连接相邻两个第二感测垫18S的桥接线18B烧断，而达到静电防护的功效。Please continue to refer to FIG. 2 and FIG. 3 , which are enlarged schematic diagrams of the area of the floating gate ESD protection device in FIG. 1 , and refer to FIG. 1 together. FIG. 2 shows a schematic top view of the floating gate ESD protection device of this embodiment, and FIG. 3 shows a schematic cross-sectional view of the floating gate ESD protection device of this embodiment along line A-A' in FIG. 2 . As shown in FIG. 2 and FIG. 3 , each floating gateelectrostatic protection device 20 includes a conductive pattern layer (such as a metal pattern layer) 22, adielectric layer 24, and a semiconductor pattern layer (such as an amorphous silicon layer) 26. , to connect adjacentfirst sensing pads 16S orsecond sensing pads 18S. In addition, an insulatinglayer 28 can cover the floating gateESD protection element 20 and the adjacentfirst sensing pad 16S and thesecond sensing pad 18S to achieve a protective effect. Thesemiconductor pattern layer 26 of each floating gateelectrostatic protection element 20 is respectively in contact with two adjacent but not electrically connectedfirst sensing pads 16S and two adjacent but not electrically connectedsecond sensing pads 18S and partially overlap. Theconductive pattern layer 22 partially overlaps thefirst sensing pad 16S and thesecond sensing pad 18S respectively. In this embodiment, theconductive pattern layer 22 is located on thedisplay panel 12, thedielectric layer 24 is located on theconductive pattern layer 22, thesemiconductor pattern layer 26 is located on thedielectric layer 24, thefirst sensing pad 16S and thesecond sensing pad 18S is located on thesemiconductor pattern layer 26 , and the insulatinglayer 28 covers thefirst sensing pad 16S, thesecond sensing pad 18S and thesemiconductor pattern layer 26 . The material of thedielectric layer 24 can be various organic or inorganic dielectric materials, preferably low-k dielectric materials, so as to reduce possible damage caused by static electricity. In addition, the thickness of thedielectric layer 24 can be adjusted as required, and thedielectric layer 24 can also be made into a patterned layer to cover the conductive patternedlayer 22 . In the floating gateelectrostatic protection element 20 of this embodiment, theconductive pattern layer 22 plays the role of the gate, thedielectric layer 24 plays the role of the gate dielectric layer, and thesemiconductor pattern layer 26 is used as the channel, and the adjacent but The twofirst sensing pads 16S that are not electrically connected and the two adjacentsecond sensing pads 18S that are not electrically connected serve as source/drain. With the arrangement of the floating gateelectrostatic protection element 20, when the capacitive touch device 10 accumulates electrostatic charges in thetouch sensing unit 14 due to friction or other unpredictable factors, a large amount of electrostatic charges will induce floating. The opening of the gateelectrostatic protection element 20 means that a large amount of electrostatic charge on thefirst sensing pad 16S or thesecond sensing pad 18S will couple theconductive pattern layer 22 to form a potential, thus turning on thesemiconductor pattern layer 26 and making the floating gate Theelectrostatic protection element 20 is turned on. At this time, the electrostatic charge accumulated on a specificfirst sensing pad 16S orsecond sensing pad 18S can be quickly transferred to the adjacentfirst sensing pad 16S orsecond sensing pad 18S, and if the amount of static charge If there is still too much, the adjacent floating gateESD protection element 20 will still be induced to turn on, so that the static charge will continue to conduct to the adjacentfirst sensing pad 16S or thesecond sensing pad 18S. In this way, excessive static electricity can be prevented from blowing thebridge wire 16B connecting two adjacentfirst sensing pads 16S, or thebridge wire 18B connecting two adjacent second sensing pads 18S. , to achieve the effect of electrostatic protection.

在上述实施例中，浮动栅极静电防护元件20的导电图案层22位于显示面板12上、介电层24位于导电图案层22上、半导体图案层26位于介电层24上，且第一感测垫16S与第二感测垫18S位于半导体图案层26上。导电图案层22可选择性地跟第二感测垫之间的桥接线18B一起制作，介电层24可选择性地跟桥接线18B与桥接线16B之间的介电层(图未示)一起制作，如此可简化制造工艺，降低制作成本，但并不以此为限。本发明的浮动栅极静电防护元件的结构并不以此为限，而可具有其它实施样态。请参考图4，并一并参考图1。图4绘示了本发明的另一实施例的浮动栅极静电防护元件的剖面示意图。如图4所示，各浮动栅极静电防护元件20的半导体图案层26位于显示面板12上、介电层24位于半导体图案层26、第一感测垫16S与第二感测垫18S(图4未示)上、导电图案层22位于介电层24上。In the above embodiment, theconductive pattern layer 22 of the floating gateelectrostatic protection element 20 is located on thedisplay panel 12, thedielectric layer 24 is located on theconductive pattern layer 22, thesemiconductor pattern layer 26 is located on thedielectric layer 24, and the first sensor Thesensing pad 16S and thesecond sensing pad 18S are located on thesemiconductor pattern layer 26 . Theconductive pattern layer 22 can be selectively made together with thebridge line 18B between the second sensing pads, and thedielectric layer 24 can be selectively made with the dielectric layer (not shown) between thebridge line 18B and thebridge line 16B. Together, the manufacturing process can be simplified and the manufacturing cost can be reduced, but not limited thereto. The structure of the floating gate electrostatic protection device of the present invention is not limited thereto, but may have other implementations. Please refer to Figure 4, and also refer to Figure 1. FIG. 4 is a schematic cross-sectional view of a floating gate ESD protection device according to another embodiment of the present invention. As shown in FIG. 4 , thesemiconductor pattern layer 26 of each floating gateESD protection element 20 is located on thedisplay panel 12, thedielectric layer 24 is located on thesemiconductor pattern layer 26, thefirst sensing pad 16S and thesecond sensing pad 18S (FIG. 4 not shown), theconductive pattern layer 22 is located on thedielectric layer 24.

由上述可知，本发明利用设置于感测区12S内浮动栅极静电防护元件20提供电容式触控装置10所需的静电防护效果，但本发明的电容式触控装置10可于显示面板12的周边，例如连线区与连接垫区选择性地再额外设置静电防护元件，以进一步加强静电防护效果。请参考图5与图6，并一并参考图1。图5与图6绘示了本发明一较佳实施例的连线区静电防护元件的示意图，其中图5绘示了本实施例的连线区静电防护元件的上视示意图，图6绘示了本实施例的连线区静电防护元件沿图5的B-B’剖线的剖面示意图。如1图所示，电容式触控装置10的显示面板12另包括一连线区(fan out region or conductivewire region)12F、多条连接线30设置于连线区12F内、一防护环(guard ring)32设置于连线区12F内，以及多个连线区静电防护元件34。连接线30分别电连接第一感测串列16与第二感测串列18，用以传递触控感测单元14所接收到的讯号。各连线区静电防护元件34分别与一相对应的连接线30电连接以及与防护环32电连接。如图1、图5与图6所示，在本实施例中，连线区静电防护元件34为二极体静电防护元件，其包括一晶体管元件或多个晶体管元件，其中晶体管元件包括一栅极341、一介电层24、一半导体图案层26、两个源极/漏极342，343与一绝缘层28。源极/漏极342与一相对应的第一感测串列16或第二感测串列18电连接，而源极/漏极343则与栅极341以及防护环32电连接。藉由上述连接方式，晶体管元件可具有二极体元件的特性，藉此本实施例的连线区静电防护元件34可发挥静电防护作用。As can be seen from the above, the present invention uses the floating gateelectrostatic protection element 20 disposed in thesensing region 12S to provide the electrostatic protection effect required by the capacitive touch device 10, but the capacitive touch device 10 of the present invention can be used on thedisplay panel 12 The surrounding areas, such as the connection area and the connection pad area, are selectively provided with additional electrostatic protection components to further enhance the electrostatic protection effect. Please refer to FIG. 5 and FIG. 6 , and refer to FIG. 1 together. Figure 5 and Figure 6 depict a schematic view of the electrostatic protection component in the connection area of a preferred embodiment of the present invention, wherein Figure 5 depicts a schematic top view of the electrostatic protection component in the connection area of this embodiment, and Figure 6 illustrates A schematic cross-sectional view of the ESD protection component in the wiring area of this embodiment along the BB' line in FIG. 5 is shown. As shown in Figure 1, thedisplay panel 12 of the capacitive touch device 10 further includes a fan out region orconductive wire region 12F, a plurality of connectingwires 30 arranged in the fan outregion 12F, a guard ring (guard ring) 32 is disposed in thewiring area 12F, and a plurality ofelectrostatic protection components 34 in the wiring area. Theconnection wires 30 are respectively electrically connected to thefirst sensing series 16 and thesecond sensing series 18 for transmitting signals received by thetouch sensing unit 14 . EachESD protection element 34 in the connection area is electrically connected to acorresponding connection line 30 and to theprotection ring 32 . As shown in Fig. 1, Fig. 5 and Fig. 6, in this embodiment, theESD protection element 34 in the connection area is a diode ESD protection element, which includes a transistor element or a plurality of transistor elements, wherein the transistor element includes agate electrode 341 , adielectric layer 24 , asemiconductor pattern layer 26 , two source/drain electrodes 342 , 343 and an insulatinglayer 28 . The source/drain 342 is electrically connected to a correspondingfirst sensing series 16 or thesecond sensing series 18 , and the source/drain 343 is electrically connected to thegate 341 and theguard ring 32 . Through the above connection method, the transistor element can have the characteristics of a diode element, so that theelectrostatic protection element 34 in the connection area of this embodiment can play an electrostatic protection role.

请再参考图7，并一并参考图1。图7绘示了本发明另一较佳实施例的连线区静电防护元件的示意图。如图1与图7所示，本实施例的连线区静电防护元件34亦可为一浮动栅极静电防护元件，其包括一栅极341、一介电层24、一半导体图案层26、两个源极/漏极342，343与一绝缘层28，其中源极/漏极342与一相对应的第一感测串列16或第二感测串列18电连接，而源极/漏极343以及防护环32电连接。不同于前述实施例，本实施例的连线区静电防护元件34的源极/漏极343并未与栅极341电连接，但藉由上述连接方式形成的浮动栅极静电防护元件同样可有效发挥静电防护作用。Please refer to FIG. 7 again, and refer to FIG. 1 together. FIG. 7 is a schematic diagram of an electrostatic protection component in the wiring area according to another preferred embodiment of the present invention. As shown in Figures 1 and 7, theESD protection element 34 in the connection area of this embodiment can also be a floating gate ESD protection element, which includes agate 341, adielectric layer 24, asemiconductor pattern layer 26, Two source/drains 342, 343 are connected to an insulatinglayer 28, wherein the source/drain 342 is electrically connected to a correspondingfirst sensing series 16 or thesecond sensing series 18, and the source/drain Thedrain 343 is electrically connected to theguard ring 32 . Different from the previous embodiments, the source/drain 343 of theESD protection element 34 in the connection area of this embodiment is not electrically connected to thegate 341, but the floating gate ESD protection element formed by the above connection method can also be effective Play the role of electrostatic protection.

请参考图8，并一并参考图1。图8绘示了本发明一较佳实施例的连线区静电防护元件的示意图。如1图所示，电容式触控装置10的显示面板12另包括一连接垫区(contact pad region)12C、多个连接垫36设置于连接垫区12C内，以及多个连接垫区静电防护元件38设置于连接垫区12C内。各连接垫36分别与一相对应的连接线30电连接，且各连接垫区静电防护元件38分别与一相应的连接垫36电连接。如图1与图8所示，本实施例的连接垫区静电防护元件38包括一放电尖端(discharging tip)38T，且防护环32亦包括多个放电尖端32T，分别与各连接垫区静电防护元件38的放电尖端38T相对设置，且藉由放电尖端38T，32T的设计，累积在连接垫36的静电荷可有效被传导至防护环32，防护环32可再经由接地或是其他的静电防护电路将电荷导出，达到静电防护的效果。Please refer to FIG. 8 and also refer to FIG. 1 . FIG. 8 is a schematic diagram of an electrostatic protection component in a wiring area according to a preferred embodiment of the present invention. As shown in Figure 1, thedisplay panel 12 of the capacitive touch device 10 further includes a connection pad region (contact pad region) 12C, a plurality ofconnection pads 36 arranged in theconnection pad region 12C, and a plurality of connection pad regions for electrostatic protection Theelement 38 is disposed in theconnection pad area 12C. Eachconnection pad 36 is electrically connected to acorresponding connection line 30 , and each connection pad areaESD protection element 38 is electrically connected to acorresponding connection pad 36 . As shown in Fig. 1 and Fig. 8, theelectrostatic protection element 38 in the connection pad area of the present embodiment includes a discharge tip (discharging tip) 38T, and theprotective ring 32 also includes a plurality ofdischarge tips 32T, which are respectively connected with each connection pad area for electrostatic protection. Thedischarge tip 38T of theelement 38 is arranged oppositely, and through the design of thedischarge tip 38T, 32T, the electrostatic charge accumulated on theconnection pad 36 can be effectively conducted to theguard ring 32, and theguard ring 32 can be grounded or other electrostatic protection The circuit exports the charge to achieve the effect of electrostatic protection.

请参考图9。图9绘示了本发明另一较佳实施例的连线区静电防护元件的示意图。如图9所示，不同于前述实施例，在本实施例中，连接垫区静电防护元件38直接与防护环32电连接，因此同样具有静电防护效果。另外，连接垫区静电防护元件38与防护环32的电连接会于后续被切断，因此在电容式触控装置实际用作时并不会使得各连接垫36之间产生短路问题。Please refer to Figure 9. FIG. 9 is a schematic diagram of an electrostatic protection component in the wiring area according to another preferred embodiment of the present invention. As shown in FIG. 9 , different from the previous embodiments, in this embodiment, theESD protection element 38 in the connection pad area is directly electrically connected to theprotection ring 32 , so it also has the ESD protection effect. In addition, the electrical connection between theESD protection element 38 in the connection pad area and theprotection ring 32 will be cut off later, so the problem of short circuit between theconnection pads 36 will not occur when the capacitive touch device is actually used.

如前所述，本发明的电容式触控装置可为一具有触控输入及显示双重功能的电容式触控显示面板，或者电容式触控装置亦可单纯具有触控输入功能的电容式触控基板，并可以贴附方式与一显示面板组合而形成一电容式触控显示面板。因此依据触控显示单元设置的位置不同，本发明的电容式触控装置具有下述不同的实施样态。请参考图10。图10绘示了本发明一较佳实施例的电容式触控装置的示意图。如图10所示，显示面板12例如可为一液晶显示面板、一有机发光显示面板、一电浆显示面板、电泳显示面板等，但不限于此。本实施例以液晶显示面板为例，其包括一阵列基板121、一彩色滤光片基板122，以及一液晶层123设置于阵列基板121与彩色滤光片基板122之间。显示面板12的外侧具有一第一表面12A，例如彩色滤光片基板122的外侧表面，以及一第二表面12B，例如彩色滤光片基板122的内侧表面。显示面板12可另包括一彩色滤光层15设置于第二表面12B。在本实施例中，触控感测单元14设置于显示面板12的第一表面12A上。As mentioned above, the capacitive touch device of the present invention can be a capacitive touch display panel with dual functions of touch input and display, or the capacitive touch device can also be a capacitive touch panel with only touch input function. control substrate, and can be combined with a display panel to form a capacitive touch display panel. Therefore, according to the different positions of the touch display unit, the capacitive touch device of the present invention has the following different implementation modes. Please refer to Figure 10. FIG. 10 is a schematic diagram of a capacitive touch device according to a preferred embodiment of the present invention. As shown in FIG. 10 , thedisplay panel 12 can be, for example, a liquid crystal display panel, an organic light emitting display panel, a plasma display panel, an electrophoretic display panel, etc., but is not limited thereto. This embodiment takes a liquid crystal display panel as an example, which includes anarray substrate 121 , acolor filter substrate 122 , and aliquid crystal layer 123 disposed between thearray substrate 121 and thecolor filter substrate 122 . The outer side of thedisplay panel 12 has afirst surface 12A, such as the outer surface of thecolor filter substrate 122 , and asecond surface 12B, such as the inner surface of thecolor filter substrate 122 . Thedisplay panel 12 may further include acolor filter layer 15 disposed on thesecond surface 12B. In this embodiment, thetouch sensing unit 14 is disposed on thefirst surface 12A of thedisplay panel 12 .

请参考图11。图11绘示了本发明另一较佳实施例的电容式触控装置的示意图。如图11所示，在本实施例中，触控感测单元14则可设置于显示面板12的第二表面12B上。Please refer to Figure 11. FIG. 11 is a schematic diagram of a capacitive touch device according to another preferred embodiment of the present invention. As shown in FIG. 11 , in this embodiment, thetouch sensing unit 14 can be disposed on thesecond surface 12B of thedisplay panel 12 .

请参考图12。图12绘示了本发明又一较佳实施例的电容式触控装置的示意图。如图12所示，在本实施例中，电容式触控装置另包括一辅助基板S，其中触控感测单元14可设置于辅助基板S上，且辅助基板S可贴附于显示面板12上。Please refer to Figure 12. FIG. 12 is a schematic diagram of a capacitive touch device according to another preferred embodiment of the present invention. As shown in FIG. 12 , in this embodiment, the capacitive touch device further includes an auxiliary substrate S, wherein thetouch sensing unit 14 can be disposed on the auxiliary substrate S, and the auxiliary substrate S can be attached to thedisplay panel 12 superior.

综上所述，本发明的电容式触控装置利用设置于感测区内浮动栅极静电防护元件增加静电防护能力，且进了提升静电防护能力，可进一步于连线区与连接垫区增设各种型式的静电防护元件。藉此，不论电容式触控装置为一电容式触控显示面板或一电容式触控基板，均可具有较佳的静电防护能力。To sum up, the capacitive touch device of the present invention utilizes the floating gate electrostatic protection element installed in the sensing area to increase the electrostatic protection ability, and further enhances the electrostatic protection ability, and can further increase the electrostatic protection ability in the connection area and the connection pad area. Various types of electrostatic protection components. Thereby, no matter whether the capacitive touch device is a capacitive touch display panel or a capacitive touch substrate, it can have better electrostatic protection capability.

以上所述仅为本发明的较佳实施例，凡依本发明权利要求所做的均等变化与修饰，皆应属本发明的涵盖范围。The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims (20)

1. a capacitance type touch control display panel is characterized in that, described display panel comprises:

One display panel comprises a sensing area;

One touch-control sensing unit is arranged in the sensing area of described display panel, and described touch-control sensing unit comprises:

Many first sensing serials, along a first direction setting, wherein each described first sensing serials comprises a plurality of first sensor pads that are electrically connected each other;

Many second sensing serials, along a second direction setting, wherein each described second sensing serials comprises a plurality of second sensor pads that are electrically connected each other; And

A plurality of floating grid electrostatic protection, be arranged in the described sensing area of described display panel, wherein each described floating grid electrostatic protection is arranged between adjacent but two described first sensor pads not being electrically connected and adjacent but two described second sensor pads not being electrically connected.

2. capacitance type touch control display panel as claimed in claim 1, it is characterized in that, described floating grid electrostatic protection comprises a conductive pattern layer, a dielectric layer and semiconductor patterned layer, and the described semiconductor pattern layer of each described floating grid electrostatic protection contact and the part overlapping with adjacent but two described first sensor pads not being electrically connected and with two described second sensor pads adjacent but that be not electrically connected respectively.

3. capacitance type touch control display panel as claimed in claim 2, it is characterized in that, the described conductive pattern layer of described floating grid electrostatic protection is positioned on the described display panel, described dielectric layer is positioned on the described conductive pattern layer, described semiconductor pattern layer is positioned on the described dielectric layer, and described first sensor pad and described second sensor pad are positioned on the described semiconductor pattern layer.

4. capacitance type touch control display panel as claimed in claim 2, it is characterized in that, described first sensor pad and described second sensor pad are positioned on the described display panel, the described semiconductor pattern layer of each described floating grid electrostatic protection is positioned on the described display panel, described dielectric layer is positioned at described semiconductor pattern layer, described first sensor pad and second sensor pad, and described conductive pattern layer is positioned on the described dielectric layer.

5. capacitance type touch control display panel as claimed in claim 1 is characterized in that the outside of described display panel has a first surface, and described touch-control sensing unit is arranged on the described first surface.

6. capacitance type touch control display panel as claimed in claim 1 is characterized in that, the interior of described display panel then has a second surface, and described touch-control sensing unit is arranged on the described second surface.

7. capacitance type touch control display panel as claimed in claim 6 is characterized in that, described panel comprises that also a chromatic filter layer is arranged on the described touch-control sensing unit.

8. capacitance type touch control display panel as claimed in claim 1 is characterized in that described panel comprises an assisting base plate in addition, and described touch-control sensing unit is arranged on the described assisting base plate, and described assisting base plate is attached on the described display panel.

9. capacitance type touch control display panel as claimed in claim 1, it is characterized in that, described display panel comprises an intersection region in addition, and many connecting lines are arranged in the described intersection region, and described connecting line is electrically connected described first sensing serials and described second sensing serials respectively.

10. capacitance type touch control display panel as claimed in claim 9 is characterized in that described display panel comprises a protective ring in addition.

11. capacitance type touch control display panel as claimed in claim 10, it is characterized in that, described panel also comprises a plurality of intersection region electrostatic protection elements, wherein each described intersection region electrostatic protection element is electrically connected with corresponding described first sensing serials or corresponding described second sensing serials respectively, and each described intersection region electrostatic protection element is electrically connected with described protective ring.

12. capacitance type touch control display panel as claimed in claim 11 is characterized in that, described intersection region electrostatic protection element comprises a plurality of floating grid electrostatic protection.

13. capacitance type touch control display panel as claimed in claim 11 is characterized in that, described intersection region electrostatic protection element comprises a plurality of diode electrostatic protection elements.

14. capacitance type touch control display panel as claimed in claim 13 is characterized in that, described diode electrostatic protection element comprises at least one transistor unit, and a grid of described transistor unit is electrically connected with source.

15. capacitance type touch control display panel as claimed in claim 9, it is characterized in that, described display panel also comprises a connection gasket district, described capacitance type touch control display panel comprises that in addition a plurality of connection gaskets are arranged in the described connection gasket district, and each described connection gasket is electrically connected with a corresponding described connecting line respectively.

16. capacitance type touch control display panel as claimed in claim 15 is characterized in that, described display panel comprises a protective ring in addition.

17. capacitance type touch control display panel as claimed in claim 16, it is characterized in that, described panel also comprises a plurality of connection gaskets district electrostatic protection element, be arranged in the described connection gasket district, and each described connection gasket district electrostatic protection element is electrically connected with a corresponding described connection gasket respectively.

18. capacitance type touch control display panel as claimed in claim 17, it is characterized in that, described connection gasket district electrostatic protection element comprises a discharge tip, and described protective ring comprises a plurality of discharge tip, and the described discharge tip with each described connection gasket district electrostatic protection element is oppositely arranged respectively.

19. capacitance type touch control display panel as claimed in claim 17 is characterized in that, described connection gasket district electrostatic protection element is electrically connected with described protective ring.

20. a capacitance type touch control substrate is characterized in that, described capacitance type touch control substrate comprises:

One substrate has a sensing area;

One touch-control sensing unit is arranged in the described sensing area of described substrate, and described touch-control sensing unit comprises:

Many first sensing serials, along a first direction setting, wherein each described first sensing serials comprises a plurality of first sensor pads that are electrically connected each other;

Many second sensing serials, along a second direction setting, wherein each described second sensing serials comprises a plurality of second sensor pads that are electrically connected each other; And

A plurality of floating grid electrostatic protection, be arranged in the described sensing area of described substrate, wherein each described floating grid electrostatic protection setting at adjacent but two described first sensor pads not being electrically connected with adjacent but between two described second sensor pads not being electrically connected.

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