WO2021078121A1 - 一种电容触摸屏控制板及大尺寸电容触摸屏 - Google Patents

一种电容触摸屏控制板及大尺寸电容触摸屏 Download PDF

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Publication number
WO2021078121A1
WO2021078121A1 PCT/CN2020/122222 CN2020122222W WO2021078121A1 WO 2021078121 A1 WO2021078121 A1 WO 2021078121A1 CN 2020122222 W CN2020122222 W CN 2020122222W WO 2021078121 A1 WO2021078121 A1 WO 2021078121A1
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WIPO (PCT)
Prior art keywords
sensing layer
pin
pins
touch screen
capacitive touch
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PCT/CN2020/122222
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English (en)
French (fr)
Inventor
魏鹏
吴甲森
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深圳市鸿合创新信息技术有限责任公司
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Publication of WO2021078121A1 publication Critical patent/WO2021078121A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

Definitions

  • This application belongs to the field of display technology, and specifically relates to a capacitive touch screen control panel and a large-size capacitive touch screen.
  • the touch screen of the related technology is one of the important media for human-computer interaction.
  • people's demand for the size of the touch screen is also increasing, and the trend is toward the direction of intelligent, high-performance and low-cost.
  • etching processes such as dry etching, wet etching, and yellow light etching are usually used to form pattern channels of equal width and equal interval close to each other on the sensing layer, and each pattern channel occupies one pattern.
  • Touch IC channel resources Therefore, the larger the size of the touch screen and the more graphics channels, the more touch IC channel resources are required.
  • the number of channels of each touch IC has a maximum upper limit, which limits the use of large touch screens. Development.
  • the embodiments of the present application aim to solve the problem that large-size touch screens are limited by touch IC channel resources.
  • a capacitive touch screen control panel which is arranged inside a large-size capacitive touch screen.
  • the large-size capacitive touch screen includes a first sensing layer and a second sensing layer, and the first sensing layer includes a first sensing layer pattern. Channel and a first sensing layer electrode line, the second sensing layer includes N second sensing layer pattern channels and corresponding second sensing layer electrode lines, the first sensing layer serves as a driving stage, and the second sensing layer As a receiving stage, the second sensing layer is connected to the capacitive touch screen control board through electrode lines, wherein:
  • the capacitive touch screen control board includes a smart switch and a touch IC module, the touch IC module has m channels, and the first end of the smart switch includes N first pins, which are connected to the second The N second sensing layer electrode lines of the sensing layer are connected, and the second end of the smart switch includes m second pins, which are respectively connected to m channels of the touch IC module, where m ⁇ N;
  • the m second pins at the second end of the smart switch can sequentially connect to part of the first pins at the first end, so that the m channels of the touch IC module can traverse the second sensing layer N second sensing layer graphics channels.
  • the N first pins are the first pins 1,..., the first pins m,..., the first pins N arranged in sequence at the first end of the smart switch
  • the N second sensing layer electrode lines include electrode lines 1, ..., electrode lines m, ..., electrode lines N arranged in sequence, and the N second sensing layer electrode lines are in accordance with the following rules and the N first Pin connection:
  • the electrode wire 1 is connected to the first pin 1, ..., the electrode wire m is connected to the first pin m, ..., the electrode wire N is connected to the first pin N.
  • the N first pins are the first pins 1,..., the first pins m,..., the first pins N arranged in sequence at the first end of the smart switch
  • the N second sensing layer electrode lines include electrode lines 1, ..., electrode lines m, ..., electrode lines N arranged in sequence, and the N second sensing layer electrode lines are in accordance with the following rules and the N first Pin connection:
  • the electrode line 1 is connected to the first pin 1, the electrode line 2 is connected to the first pin N, the electrode line 3 is connected to the first pin 2, the electrode line 4 is connected to the first pin N-1,...
  • the N first pins are the first pins 1,..., the first pins m,..., the first pins N arranged in sequence at the first end of the smart switch
  • the N second sensing layer electrode lines include electrode lines 1, ..., electrode lines m, ..., electrode lines N arranged in sequence, and the N second sensing layer electrode lines are in accordance with the following rules and the N first Pin connection:
  • the electrode line 1 is connected to the first pin N
  • the electrode line 2 is connected to the first pin 1
  • the electrode line 3 is connected to the first pin N-1
  • the electrode line 4 is connected to the first pin 2,...
  • the N first pins are the first pins 1,..., the first pins m,..., the first pins N arranged in sequence at the first end of the smart switch
  • the N second sensing layer electrode lines include electrode lines 1, ..., electrode lines m, ..., electrode lines N arranged in sequence, and the N second sensing layer electrode lines are in accordance with the following rules and the N first Pin connection:
  • the electrode wires numbered odd are connected to the first pin correspondingly.
  • N is an even number
  • the electrode wire 2 is connected to the first pin N
  • the electrode 4 is connected to the first pin N-2, ..., the electrode N is connected to the first pin.
  • the pin 2 is connected.
  • N is an odd number
  • the electrode line 2 is connected to the first pin N-1
  • the electrode 4 is connected to the first pin N-3, ..., the electrode N-1 is connected to the first pin 2.
  • the N first pins are the first pins 1,..., the first pins m,..., the first pins N arranged in sequence at the first end of the smart switch
  • the N second sensing layer electrode lines include electrode lines 1, ..., electrode lines m, ..., electrode lines N arranged in sequence, and the N second sensing layer electrode lines are in accordance with the following rules and the N first Pin connection:
  • the even-numbered electrode wires are connected to the first pin correspondingly.
  • N is an even number
  • the electrode wire 1 is connected to the first pin N-1
  • the electrode 3 is connected to the first pin N-3
  • the electrode N- 1 is connected to the first pin 2.
  • N is an odd number
  • the electrode line 1 is connected to the first pin N
  • the electrode line 3 is connected to the first pin N-2
  • ... the electrode N is connected to the first pin 1 .
  • the smart switch includes a control module, and the control module is used to control the m second pins of the second end in sequence from the first pin 1 to the first pin N Connect part of the first pins of the first end.
  • the m second pins are the second pins 1, the second pins 2, ..., the second pins m arranged in sequence at the second end of the smart switch, and the The m channels are channel 1, channel 2, ..., channel m arranged in sequence, and the m second pins are connected to the m channels according to the following rules:
  • the second pin 1 is connected to channel 1, the second pin 2 is connected to channel 2, ..., the second pin m is connected to channel m.
  • a large-size capacitive touch screen including:
  • a first sensing layer and a second sensing layer includes a first sensing layer pattern channel and a first sensing layer electrode line, and the second sensing layer includes N second sensing layer pattern channels and a corresponding first sensing layer.
  • Two sensing layer electrode lines, the first sensing layer is used as a driving stage, and the second sensing layer is used as a receiving stage; and
  • the capacitive touch screen control board As for the capacitive touch screen control board described above, the capacitive touch screen control board is connected to the second sensing layer.
  • the N second sensing layer graphic channels are X-axis graphic channels or Y-axis graphic channels of the capacitive touch screen.
  • both the first sensing layer channel and the second sensing layer channel can be X-axis or Y-axis graphic channels;
  • the second sensing layer channel is the Y-axis graphics channel; when the first sensing layer channel is the Y-axis graphics channel, then the The second sensing layer channel is the X-axis graphics channel.
  • the large-size capacitive touch screen is a touch screen of 50 inches or more.
  • the large-size capacitive touch screen further includes a front protection panel, a liquid crystal display layer, a shielding layer, and a rear protection panel;
  • the front protection panel, the first sensing layer, the second sensing layer, the liquid crystal display layer, the shielding layer, and the rear protection panel are sequentially attached and connected.
  • the front protection panel, the first sensing layer, the second sensing layer, the liquid crystal display layer, the shielding layer and the rear protection panel are all adhered by an optical adhesive layer. ⁇ Joined.
  • the first sensing layer and the second sensing layer are made of indium tin oxide material.
  • the capacitive touch screen control board and the large-size capacitive touch screen provided by the embodiments of the present application, through the intelligent selection switch to select the sensing layer graphics channel and the touch IC channel in turn, in turn, to achieve a touch with a maximum number of m touch channels.
  • the control IC controls the capacitive touch screen with the number of graphic channels in the sensing layer of N, where N>m, which solves the problem of large-size touch screens being limited by touch IC channel resources.
  • N>m which solves the problem of large-size touch screens being limited by touch IC channel resources.
  • touch IC channel resources Under the premise of ensuring the high performance of large-size touch screens, use limited touch IC channel resources
  • the development of larger-size capacitive touch screens saves touch IC channel resources while reducing the production and development costs of large-size capacitive touch screens.
  • Fig. 1 is a schematic structural diagram of a large-size capacitive touch screen provided by a specific embodiment of the present invention
  • Fig. 2 is a schematic diagram of electrical connection of a large-size capacitive touch screen provided by a specific embodiment of the present invention.
  • the first sensing layer
  • the second sensing layer 301.
  • the second sensing layer pattern channel 302.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present application, "a plurality of” means two or more than two, unless otherwise specifically defined.
  • the present application provides a capacitive touch screen control panel and a large-size capacitive touch screen.
  • the structure of the large-size capacitive touch screen is shown in FIG. ,
  • the second sensing layer 300, the liquid crystal display layer 400, the shielding layer 500, and the rear protective panel 600 are all bonded and connected by an optical adhesive layer 700.
  • the front protection panel 100 and the rear protection panel 600 are generally made of glass or plastic.
  • the front protection panel 100 is used to prevent damage to the touch panel when the user writes, and the rear protection panel 600 is used to protect the liquid crystal display layer 400 and the shielding layer. 500 is used to shield interference signals from the power board on the whole machine and the external environment.
  • the optical adhesive layer 700 can be optical adhesive of any material, such as OCA (Optically Clear Adhesive, optical glue).
  • the first sensing layer 200 and the second sensing layer 300 can be any material that is convenient to form a pattern channel by etching, and an ITO (Indium tin oxide, indium tin oxide) material is generally used.
  • the first sensing layer 200 includes a first sensing layer pattern channel (not shown in the figure) and a first sensing layer electrode line (not shown in the figure), as shown in FIG. 2, the second sensing layer 300 includes a second sensing layer The pattern channel 301 and the electrode line 302 of the second sensing layer.
  • the first sensing layer pattern channel and the first sensing layer electrode line, and the second sensing layer pattern channel 301 and the second sensing layer electrode line 302 can all be connected by etching.
  • the first sensing layer 200 is used as a driving electrode
  • the second sensing layer 300 is used as a receiving electrode.
  • Both the first sensing layer channel and the second sensing layer channel can be X-axis or Y-axis graphic channels: specifically, the first sensing layer channel is When the X-axis graphics channel is used, the second sensing layer channel 301 is the Y-axis graphics channel; when the first sensing layer channel is the Y-axis graphics channel, the second sensing layer channel 301 is the X-axis graphics channel.
  • the X axis here is the horizontal extension axis
  • the Y axis is the vertical extension axis.
  • a node capacitance is formed at the intersection of the pattern channel of the first sensing layer and the pattern channel 301 of the second sensing layer.
  • the node capacitance will change, and the changed capacitance value will pass through the electrode of the second sensing layer.
  • the line 302 is transmitted to the touch IC module 802 of the capacitive touch screen control board 800, and the touch IC module 802 calculates the coordinates of the contact position corresponding to the changed capacitance value.
  • the capacitive touch screen control board 800 also includes a smart switch 801.
  • the smart switch 801 is used to connect the second sensing layer graphics channel 301 with The touch IC module 802 is connected.
  • the touch IC module 802 has m channels, and the first end of the smart switch 801 includes N first pins, which are connected to the N second sensors of the second sensing layer 300, respectively.
  • the layer electrode lines 302 are connected, and the second end of the smart switch 801 includes m second pins, which are respectively connected to m channels of the touch IC module 802, where m ⁇ N.
  • the m second pins at the second end of the smart switch 801 can sequentially connect to part of the first pins at the first end, so that the m channels of the touch IC module 802 can traverse the Nth pins of the second sensing layer 300 Two sensing layer graphics channel 301.
  • the second sensing layer graphics channel 301 and the channels of the touch IC module 802 are selected in turn by the intelligent selection switch 801 in time intervals, so that the touch IC module 802 with the maximum touch channel number of m controls the sensing layer graphics channel
  • the number of capacitive touch screens (N>m) solves the problem of large-size touch screens being limited by touch IC channel resources.
  • the limited touch IC channel resources are used to develop larger sizes
  • the capacitive touch screen which saves touch IC channel resources, reduces the production cost and development cost of large-size capacitive touch screens.
  • the specific strobe control process is that when N ⁇ 2m, the smart selection switch 801 selects the 1 ⁇ m first pins of the first terminal and the 1 ⁇ m second pins of the second terminal in the first time period. Turn on to enable the 1 ⁇ m channels of the touch IC module 802 and the 1 ⁇ m second sensing layer pattern channels 301 of the second sensing layer 300 to be gated to realize the 1st ⁇ m second sensing layer pattern channels.
  • the display area where 301 is located has touch control; the smart selection switch 801 selects the m+1 ⁇ Nth first pin of the first end to be connected to the 1st ⁇ Nmth second pin of the second end in the second time period.
  • the display area where the channel 301 is located has touch control; by cyclically scanning the second sensing layer pattern channel 301 connected in the first time period and the second time period, the first to m second sensing layers of the second sensing layer 300
  • the graphics channel 301 and the (m+1 ⁇ N)th second sensing layer graphics channel 301 are respectively connected to the channels of the touch IC module 800 in turn, thereby realizing full-screen touch control of the touch screen.
  • the smart selection switch 801 selects the 1st ⁇ mth first pin of the first end and the 1st ⁇ mth second pin of the second end during the first period of time to make the touch IC module
  • the first to m channels of 802 and the first to m second sensing layer graphics channels 301 of the second sensing layer 300 are gated to achieve touch control in the display area where the first to m second sensing layer graphics channels 301 are located ;
  • the smart selection switch 801 selects the m+1 ⁇ 2m-th first pin of the first end and the 1st ⁇ m-th second pin of the second end in the second period of time, so that the first pin of the touch IC module 802
  • the 1 ⁇ m channels are strobed with the m+1 ⁇ 2m second sensing layer graphics channel 301 of the second sensing layer 300, so that the display area where the m+1 ⁇ 2m second sensing layer graphics channel 301 is located is touched. Control; and so on, until all the second sensing layer graphics channels 301 are scanned, and then the
  • the N first pins and the N second sensing layer electrode lines 302 can be connected by any rule.
  • the N first pins are the first leads arranged in sequence at the first end of the smart switch 801.
  • Pin 1,..., first pin m,..., first pin N, N second sensing layer electrode lines 302 include electrode lines 1,..., electrode lines m,..., electrode lines N arranged in sequence, intelligent switching
  • the switch 801 includes a control module, and the control module controls the m second pins of the second end to turn on part of the first pins of the first end in sequence from the first pin 1 to the first pin N.
  • the electrode lines 302 of the second sensing layer are connected to the N first pins according to the following rules:
  • the electrode line 1 is connected to the first pin 1, ..., the electrode line m is connected to the first pin m, ..., the electrode line N is connected to the first pin N, that is, the first pin is connected to the second sensing layer electrode line 302 They are connected in a one-to-one correspondence according to the arrangement sequence. This method is convenient for wiring operation, and the wiring after wiring is very regular, which is convenient for later inspection and maintenance.
  • connection structure in this manner is specifically that an electrode line is connected to a first pin, and the electrode line 1 to the electrode line N are respectively connected to the first pin 1 to the first pin N in a one-to-one correspondence.
  • the scanning method is block scanning. For example, when N ⁇ 2m, the first to m Switch scanning between the area where the graphics channel 301 of the second sensing layer is located and the area where the graphics channel 301 of the m+1 ⁇ N second sensing layer is located. If the user touches the graphics channel 301 of the 1 ⁇ m second sensing layer When scanning the area, it is the area where the m+1 ⁇ N second sensing layer graphics channel 301 is located, which will cause the touch to fail. Therefore, this scanning method will affect the touch accuracy and the reliability of the touch.
  • the N second sensing layer electrode lines 301 are connected to the N first pins according to the following rules:
  • the electrode line 1 is connected to the first pin 1, the electrode line 2 is connected to the first pin N, the electrode line 3 is connected to the first pin 2, the electrode line 4 is connected to the first pin N-1,...
  • connection structure of the above-mentioned embodiment can be summarized as follows: the electrode wires with odd numbers are connected to the first pins with increasing serial numbers starting from the first pin 1 in the order of increasing serial numbers, for example, electrode wire 1.
  • the electrode wire 3 is connected to the first pin 2, and so on; the even-numbered electrode wires are connected in the order of increasing serial numbers, respectively, and the ones with decreasing serial numbers starting from the first pin N are connected in a one-to-one correspondence.
  • the first pin for example, the electrode line 2 is connected to the first pin N, and the electrode line 4 is connected to the first pin N-1.
  • the N second sensing layer electrode lines 301 are connected to the N first pins according to the following rules:
  • the electrode line 1 is connected to the first pin N
  • the electrode line 2 is connected to the first pin 1
  • the electrode line 3 is connected to the first pin N-1
  • the electrode line 4 is connected to the first pin 2,...
  • connection structure of the above-mentioned embodiment can be summarized as follows: the electrode wires with odd serial numbers are connected to the first pins with decreasing serial numbers starting from the first pin N in the order of increasing serial numbers, for example, electrode wires. 1 is connected to the first pin N, and the electrode line 3 is connected to the first pin N-1, and so on; the even numbered electrode lines are connected in a one-to-one correspondence starting from the first pin 1 in the order of increasing sequence numbers
  • the first pin with increasing serial number for example, the electrode line 2 is connected to the first pin 1, the electrode line 4 is connected to the first pin 2, and so on.
  • the N second sensing layer electrode wires 301 are connected to the N first pins according to the following rules:
  • the electrode lines numbered odd are connected to the first pin correspondingly.
  • N is an even number
  • the electrode line 2 is connected to the first pin N
  • the electrode line 4 is connected to the first pin N-2
  • ... the electrode line N is connected to the first pin N-2.
  • the first pin 2 is connected.
  • N is an odd number
  • the electrode line 2 is connected to the first pin N-1
  • the electrode line 4 is connected to the first pin N-3,..., the electrode line N-1 is connected to the first pin Pin 2 is connected.
  • odd-numbered electrode lines are connected to the first pin in a one-to-one correspondence.
  • N is an even number
  • the number of the electrode line and the number of the first pin are added to N+2
  • N is an odd number
  • the electrode The serial number of the line and the serial number of the first pin add up to N+1.
  • the odd-numbered electrode lines are correspondingly connected to the first pin, that is, the electrode line O is connected to the first pin O, for example, the electrode line 1 is connected to the first pin 1, and the electrode line 3 is connected to the first pin. 3 is connected, the electrode wire 5 is connected to the first pin 5,..., where O is an odd number, which can simplify the wiring operation process to a certain extent.
  • the N second sensing layer electrode wires 301 may also be connected to the N first pins according to the following rules:
  • the even-numbered electrode wires are connected to the first pin correspondingly.
  • N is an even number
  • the electrode wire 1 is connected to the first pin N-1
  • the electrode wire 3 is connected to the first pin N-3, ..., the electrode wire N-1 is connected to the first pin 2.
  • N is an odd number
  • the electrode line 1 is connected to the first pin N
  • the electrode line 3 is connected to the first pin N-2,..., the electrode line N is connected to the first pin Pin 1 is connected.
  • even-numbered electrode lines are connected to the first pin in a one-to-one correspondence.
  • N is an even number
  • the number of the electrode line and the number of the first pin are added to N
  • N is an odd number
  • the serial number and the serial number of the first pin are added to N+1.
  • the even-numbered electrode wires are correspondingly connected to the first pin, that is, the electrode wire E is connected to the first pin E, for example, the electrode wire 2 is connected to the first pin 2, and the electrode wire 4 is connected to the first pin. 4 is connected, the electrode wire 6 is connected to the first pin 6, ..., where E is an even number, which can also simplify the wiring operation process to a certain extent.
  • connection method of the N second sensing layer electrode wires 301 and the N first pins may not be changed, that is, the two are still connected according to the number one-to-one correspondence, by changing the built-in smart
  • the program in the control module of the switch 801 is switched to realize the interspersed scanning of the graphics channel 302 of the second sensing layer.
  • the m second pins are the second pins 1, the second pins 2, ..., the second pins m arranged in sequence at the second end of the smart switch 801, and the m channels are the channels arranged in sequence 1.
  • Channel 2,..., channel m, m second pins are connected to m channels according to the following rules:
  • the second pin 1 is connected to channel 1
  • the second pin 2 is connected to channel 2
  • the second pin m is connected to channel m, that is, a second pin is connected to a channel
  • the 1 to second pins m are respectively connected to the channel 1 to the channel m in a one-to-one correspondence. Adopting this one-to-one corresponding connection according to the arrangement order is convenient for wiring operation, and the wiring after wiring is very regular, which is convenient for later inspection and maintenance.
  • the large-size capacitive touch screen described in this application is a touch screen of 50 inches or more.

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Abstract

一种电容触摸屏控制板及大尺寸电容触摸屏，电容触摸屏控制板（800）与第二感应层（300）连接，电容触摸屏控制板（800）包括智能切换开关（801）和触控IC模块（802），触控IC模块（802）具有m个通道，智能切换开关（801）的第一端包括N个第一引脚，分别与第二感应层（300）的N个第二感应层电极线（302）相连，智能切换开关（801）的第二端包括m个第二引脚，分别与触控IC模块（802）的m个通道相连，m<N；智能切换开关（801）的第二端的m个第二引脚能够依序接通第一端的部分第一引脚，使得触控IC模块（802）的m个通道能够遍历第二感应层（300）的N个第二感应层图形通道（301），保证触摸屏高性能的前提下，利用有限触控IC通道资源开发更大尺寸的电容触摸屏。

Description

一种电容触摸屏控制板及大尺寸电容触摸屏
本申请要求于2019年10月23日在中国专利局提交的、申请号为201921784829.X、发明名称为“一种大尺寸电容触摸屏”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请属于显示技术领域，具体涉及一种电容触摸屏控制板及大尺寸电容触摸屏。
 背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然构成现有技术。相关技术的触摸屏是人机交互的重要媒介之一，随着触控产品的快速发展，人们对于触控屏尺寸的需求也越来越大，并且趋向智能化高性能低成本的方向发展。互容式触摸屏的生产制造过程中，通常采用干蚀刻法、湿蚀刻法、黄光蚀刻法等蚀刻工艺，在感应层上形成相互靠近的等宽等间距的图形通道，每个图形通道占用一个触控IC通道资源。因此，触控屏的尺寸越大、图形通道越多，需求的触控IC通道资源也就越多，然而每款触控IC的通道数均有最大上限，由此限制了对大尺寸触摸屏的开发。
若要开发更大尺寸的触摸屏，通常需要通过增大ITO图形通道的宽度及图形通道的间距，或者开发具有更多通道资源的触控IC，增大ITO图形通道的宽度及图形通道的间距则会降低触摸屏的性能，开发更多的触控IC通道则会增加研发成本。
 技术问题
本申请实施例旨在解决大尺寸触摸屏受触控IC通道资源限制的问题。
 技术解决方案
为解决上述技术问题，本申请实施例采用的技术方案是：
第一方面，提供了一种电容触摸屏控制板，设于大尺寸电容触摸屏内部，所述大尺寸电容触摸屏包括第一感应层和第二感应层，所述第一感应层包括第一感应层图形通道和第一感应层电极线，所述第二感应层包括N个第二感应层图形通道和对应的第二感应层电极线，所述第一感应层作为驱动级，所述第二感应层作为接收级，所述第二感应层通过电极线与所述电容触摸屏控制板连接，其中，
所述电容触摸屏控制板包括智能切换开关和触控IC模块，所述触控IC模块具有m个通道，所述智能切换开关的第一端包括N个第一引脚，分别与所述第二感应层的N个第二感应层电极线相连，所述智能切换开关的第二端包括m个第二引脚，分别与所述触控IC模块的m个通道相连，其中，m<N；
所述智能切换开关的第二端的m个第二引脚能够依序接通第一端的部分第一引脚，使得所述触控IC模块的m个通道能够遍历所述第二感应层的N个第二感应层图形通道。
在一个实施例中，所述N个第一引脚为在所述智能切换开关的第一端依次排列的第一引脚1、…、第一引脚m、…、第一引脚N，所述N个第二感应层电极线包括依次排列的电极线1、…、电极线m、…、电极线N，所述N个第二感应层电极线按如下规则与所述N个第一引脚相连：
电极线1与第一引脚1相连，…，电极线m与第一引脚m相连，…，电极线N与第一引脚N相连。
在一个实施例中，所述N个第一引脚为在所述智能切换开关的第一端依次排列的第一引脚1、…、第一引脚m、…、第一引脚N，所述N个第二感应层电极线包括依次排列的电极线1、…、电极线m、…、电极线N，所述N个第二感应层电极线按如下规则与所述N个第一引脚相连：
电极线1与第一引脚1相连，电极线2与第一引脚N相连，电极线3与第一引脚2相连，电极线4与第一引脚N-1相连，…。
在一个实施例中，所述N个第一引脚为在所述智能切换开关的第一端依次排列的第一引脚1、…、第一引脚m、…、第一引脚N，所述N个第二感应层电极线包括依次排列的电极线1、…、电极线m、…、电极线N，所述N个第二感应层电极线按如下规则与所述N个第一引脚相连：
电极线1与第一引脚N相连，电极线2与第一引脚1相连，电极线3与第一引脚N-1相连，电极线4与第一引脚2相连，…。
在一个实施例中，所述N个第一引脚为在所述智能切换开关的第一端依次排列的第一引脚1、…、第一引脚m、…、第一引脚N，所述N个第二感应层电极线包括依次排列的电极线1、…、电极线m、…、电极线N，所述N个第二感应层电极线按如下规则与所述N个第一引脚相连：
编号为奇数的电极线与第一引脚对应相连，当N为偶数时，电极线2与第一引脚N相连，电极4与第一引脚N-2相连，…，电极N与第一引脚2相连，当N为奇数时，电极线2与第一引脚N-1相连，电极4与第一引脚N-3相连，…，电极N-1与第一引脚2相连。
在一个实施例中，所述N个第一引脚为在所述智能切换开关的第一端依次排列的第一引脚1、…、第一引脚m、…、第一引脚N，所述N个第二感应层电极线包括依次排列的电极线1、…、电极线m、…、电极线N，所述N个第二感应层电极线按如下规则与所述N个第一引脚相连：
编号为偶数的电极线与第一引脚对应相连，当N为偶数时，电极线1与第一引脚N-1相连，电极3与第一引脚N-3相连，…，电极N-1与第一引脚2相连，当N为奇数时，电极线1与第一引脚N相连，电极线3与第一引脚N-2相连，…，电极N与第一引脚1相连。
在一个实施例中，所述智能切换开关包括控制模块，所述控制模块用于控制所述第二端的m个第二引脚按由第一引脚1至第一引脚N的顺序依序接通所述第一端的部分第一引脚。
在一个实施例中，所述m个第二引脚为在所述智能切换开关的第二端依次排列的第二引脚1、第二引脚2、…、第二引脚m，所述m个通道为依次排列的通道1、通道2、…、通道m，所述m个第二引脚按如下规则与所述m个通道相连：
第二引脚1与通道1相连，第二引脚2与通道2相连，…，第二引脚m与通道m相连。
第二方面，提供了一种大尺寸电容触摸屏，包括：
第一感应层和第二感应层，所述第一感应层包括第一感应层图形通道和第一感应层电极线，所述第二感应层包括N个第二感应层图形通道和对应的第二感应层电极线，所述第一感应层作为驱动级，所述第二感应层作为接收级；以及
如上述所述的电容触摸屏控制板，所述电容触摸屏控制板与所述第二感应层连接。
在一个实施例中，所述N个第二感应层图形通道为电容触摸屏X轴的图形通道或者Y轴的图形通道。
在一个实施例中，所述第一感应层通道和所述第二感应层通道均可为X轴或Y轴的图形通道；
并且，所述第一感应层通道为X轴的图形通道时，则所述第二感应层通道为Y轴的图形通道；所述第一感应层通道为Y轴的图形通道时，则所述第二感应层通道为X轴的图形通道。
在一个实施例中，所述大尺寸电容触摸屏为50英寸以上的触摸屏。
在一个实施例中，所述大尺寸电容触摸屏还包括前保护面板、液晶显示层、屏蔽层以及后保护面板；
所述前保护面板、所述第一感应层、所述第二感应层、所述液晶显示层、所述屏蔽层以及所述后保护面板依次贴合连接。
在一个实施例中，所述前保护面板、所述第一感应层、所述第二感应层、所述液晶显示层、所述屏蔽层以及所述后保护面板之间均通过光学胶层粘合连接。
在一个实施例中，所述第一感应层和所述第二感应层采用氧化铟锡材料。
 有益效果
本申请实施例提供的一种电容触摸屏控制板及大尺寸电容触摸屏，通过智能选择切换开关分时段选择感应层图形通道与触控IC通道依次轮流选通，实现最大触控通道数为m的触控IC控制感应层图形通道数为N的电容触摸屏，其中N>m，解决了大尺寸触摸屏受触控IC通道资源限制的问题，在保证大尺寸触摸屏高性能的前提下，利用有限的触控IC通道资源开发更大尺寸的电容触摸屏，在节约触控IC通道资源的同时，降低了大尺寸电容触摸屏的生产成本与开发费用。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或示范性技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为本实用新型具体实施方式提供的大尺寸电容触摸屏结构示意图；
图2为本实用新型具体实施方式提供的大尺寸电容触摸屏电气连接示意图。
图中，
100、前保护面板；
200、第一感应层；
300、第二感应层；301、第二感应层图形通道；302、第二感应层电极线；
400、液晶显示层；
500、屏蔽层；
600、后保护面板；
700、光学胶层；
800、电容触摸屏控制板；801、智能切换开关；802、触控IC模块。
 本发明的实施方式
为了使本申请所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
需要说明的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
本申请提供了一种电容触摸屏控制板及大尺寸电容触摸屏，该大尺寸电容触摸屏的结构如图1所示，其包括由前至后依次贴合连接的前保护面板100、第一感应层200、第二感应层300、液晶显示层400、屏蔽层500以及后保护面板600，这里的“前”指的是用户正常使用时面向触摸屏的一侧，前保护面板100、第一感应层200、第二感应层300、液晶显示层400、屏蔽层500以及后保护面板600之间均通过光学胶层700粘合连接。其中，前保护面板100和后保护面板600的材料一般采用玻璃或塑胶，前保护面板100用于在用户进行书写时防止损伤触控面板，后保护面板600用于保护液晶显示层400，屏蔽层500用于屏蔽来自整机上的电源板及外界环境中的干扰信号，光学胶层700可以为任意材料的光学胶，例如：OCA（Optically Clear Adhesive，光学胶水）。第一感应层200和第二感应层300可以为任意方便通过刻蚀形成图形通道的材料，通常采用ITO（Indium tin oxide，氧化铟锡）材料。
第一感应层200包括第一感应层图形通道（图中未示出）和第一感应层电极线（图中未示出），如图2所示，第二感应层300包括第二感应层图形通道301和第二感应层电极线302。并且，第一感应层图形通道和第一感应层电极线，以及第二感应层图形通道301和第二感应层电极线302均可通过蚀刻方式实现连接。
第一感应层200作为驱动极，第二感应层300作为接收极，第一感应层通道和第二感应层通道均可为X轴或Y轴的图形通道：具体地，第一感应层通道为X轴的图形通道时，则第二感应层通道301为Y轴的图形通道；第一感应层通道为Y轴的图形通道时，则第二感应层通道301为X轴的图形通道。可以理解的是，此处的X轴为水平延伸轴，Y轴为竖直延伸轴。第一感应层图形通道与第二感应层图形通道301的交点处形成节点电容，当电容笔或手指在电容屏上触摸时，将引起节点电容发生变化，变化的电容值经过第二感应层电极线302传输到电容触摸屏控制板800的触控IC模块802，经过触控IC模块802计算出变化电容值对应的触点位置坐标。
针对现有大尺寸电容触摸屏存在的性能与成本不能兼顾的问题，如图2所示，电容触摸屏控制板800还包括智能切换开关801，智能切换开关801用于将第二感应层图形通道301与触控IC模块802进行连接，具体地，触控IC模块802具有m个通道，智能切换开关801的第一端包括N个第一引脚，分别与第二感应层300的N个第二感应层电极线302相连，智能切换开关801的第二端包括m个第二引脚，分别与触控IC模块802的m个通道相连，其中，m<N。智能切换开关801的第二端的m个第二引脚能够依序接通第一端的部分第一引脚，使得触控IC模块802的m个通道能够遍历第二感应层300的N个第二感应层图形通道301。如此，通过智能选择切换开关801分时段选择第二感应层图形通道301与触控IC模块802的通道依次轮流选通，实现最大触控通道数为m的触控IC模块802控制感应层图形通道数为N的电容触摸屏（N>m），解决了大尺寸触摸屏受触控IC通道资源限制的问题，在保证大尺寸触摸屏高性能的前提下，利用有限的触控IC通道资源开发更大尺寸的电容触摸屏，在节约触控IC通道资源的同时，降低了大尺寸电容触摸屏的生产成本与开发费用。
具体的选通控制过程为，当N≤2m时，智能选择开关801在第一时间段选择第一端的第1~m个第一引脚与第二端的第1~m个第二引脚接通，使触控IC模块802的第1~m个通道与第二感应层300的第1~m个第二感应层图形通道301选通，实现第1~m个第二感应层图形通道301所在的显示区域有触控；智能选择开关801在第二时间段选择第一端的第m+1~N个第一引脚与第二端的第1~N-m个第二引脚接通，使触控IC模块802的第1~N-m个通道与第二感应层300的第m+1~N个第二感应层图形通道301选通，实现第m+1~N个第二感应层图形通道301所在的显示区域有触控；通过循环扫描在第一时间段与第二时间段接通的第二感应层图形通道301，使第二感应层300的第1~m个第二感应层图形通道301与第m+1~N个第二感应层图形通道301分别与触控IC模块800的通道轮流接通，进而实现触摸屏全屏有触控。
当N>2m时，智能选择开关801在第一时间段选择第一端的第1~m个第一引脚与第二端的第1~m个第二引脚接通，使触控IC模块802的第1~m个通道与第二感应层300的第1~m个第二感应层图形通道301选通，实现第1~m个第二感应层图形通道301所在的显示区域有触控；智能选择开关801在第二时间段选择第一端的第m+1~2m个第一引脚与第二端的第1~m个第二引脚接通，使触控IC模块802的第1~m个通道与第二感应层300的第m+1~2m个第二感应层图形通道301选通，实现第m+1~2m个第二感应层图形通道301所在的显示区域有触控；以此类推，直至扫描完所有的第二感应层图形通道301，进而实现触摸屏全屏有触控。
其中，N个第一引脚与N个第二感应层电极线302可以采用任意的规则进行连接，例如，N个第一引脚为在智能切换开关801的第一端依次排列的第一引脚1、…、第一引脚m、…、第一引脚N，N个第二感应层电极线302包括依次排列的电极线1、…、电极线m、…、电极线N，智能切换开关801包括控制模块，控制模块控制第二端的m个第二引脚按由第一引脚1至第一引脚N的顺序依序接通第一端的部分第一引脚，N个第二感应层电极线302按如下规则与N个第一引脚相连：
电极线1与第一引脚1相连，…，电极线m与第一引脚m相连，…，电极线N与第一引脚N相连，即将第一引脚与第二感应层电极线302分别按照排列顺序一一对应连接，这种方式便于接线操作，且接线后的线路十分规整，便于后期的检修和维护。
应理解，上述该方式的连接结构具体为一电极线连接一第一引脚，并且电极线1至电极线N分别与第一引脚1至第一引脚N一一对应连接。
由于智能选择开关801中的第二引脚是依序与第一引脚接通的，若按上述的规则接线，则扫描方式为分块扫描，例如当N≤2m时，在第1~m个第二感应层图形通道301所在区域和第m+1~N个第二感应层图形通道301所在区域之间切换扫描，若用户在触控第1~m个第二感应层图形通道301所在区域时扫描的是第m+1~N个第二感应层图形通道301所在区域，则会导致触控失效，因此这种扫描方式会影响触控精度和触控的可靠性。
针对上述问题，在一个可选的实施例中，N个第二感应层电极线301按如下规则与所述N个第一引脚相连：
电极线1与第一引脚1相连，电极线2与第一引脚N相连，电极线3与第一引脚2相连，电极线4与第一引脚N-1相连，…。
应理解，上述实施例的连接结构可总结为：奇数序号的电极线按照序号递增的顺序，分别一一对应地连接从第一引脚1开始序号递增的第一引脚，例如，电极线1与第一引脚1连接，电极线3与第一引脚2连接，依此类推；偶数序号的电极线按照序号递增的顺序，分别一一对应地连接从第一引脚N开始序号递减的第一引脚，例如，电极线2与第一引脚N相连，电极线4与第一引脚N-1相连。
按上述规则接线时能够实现穿插扫描，例如当N=2m时，在第一时间段扫描与标号为奇数的第二感应层电极线301相连的第二感应层图形通道302，在第二时间段扫描与标号为偶数的第二感应层电极线301相连的第二感应层图形通道302，如此使得在一个时间段尽可能的覆盖更大的扫描区域，可以有效避免触控失效的情况。
在一个替代的实施例中，N个第二感应层电极线301按如下规则与N个第一引脚相连：
电极线1与第一引脚N相连，电极线2与第一引脚1相连，电极线3与第一引脚N-1相连，电极线4与第一引脚2相连，…。
应理解，上述该实施例的连接结构可总结为：奇数序号的电极线按照序号递增的顺序，分别一一对应地连接从第一引脚N开始序号递减的第一引脚，例如，电极线1与第一引脚N连接，电极线3与第一引脚N-1连接，依此类推；偶数序号的电极线按照序号递增的顺序，分别一一对应地连接从第一引脚1开始序号递增的第一引脚，例如，电极线2与第一引脚1相连，电极线4与第一引脚2相连，依此类推。
按上述规则接线时也能够实现穿插扫描，例如当N=2m时，在第一时间段扫描与标号为偶数的第二感应层电极线301相连的第二感应层图形通道302，在第二时间段扫描与标号为奇数的第二感应层电极线301相连的第二感应层图形通道302。
上述的接线方式虽然能够达到避免触控失效的效果，但是上述两种接线方式所有的电极线都不是与编号对应的第一引脚相连，接线比较麻烦，针对这一问题，在进一步可选的实施例中，N个第二感应层电极线301按如下规则与N个第一引脚相连：
编号为奇数的电极线与第一引脚对应相连，当N为偶数时，电极线2与第一引脚N相连，电极线4与第一引脚N-2相连，…，电极线N与第一引脚2相连，当N为奇数时，电极线2与第一引脚N-1相连，电极线4与第一引脚N-3相连，…，电极线N-1与第一引脚2相连。
应理解，编号为奇数的电极线与第一引脚一一对应相连，当N为偶数时，电极线的序号与第一引脚的序号相加为N+2；当N为奇数时，电极线的序号与第一引脚的序号相加为N+1。
如此，编号为奇数的电极线与第一引脚是对应连接的，即电极线O与第一引脚O相连，如电极线1与第一引脚1相连，电极线3与第一引脚3相连，电极线5与第一引脚5相连，…，其中O为奇数，这样能够在一定程度上简化接线操作过程。
在替代的实施例中，N个第二感应层电极线301也可以按如下规则与N个第一引脚相连：
编号为偶数的电极线与第一引脚对应相连，当N为偶数时，电极线1与第一引脚N-1相连，电极线3与第一引脚N-3相连，…，电极线N-1与第一引脚2相连，当N为奇数时，电极线1与第一引脚N相连，电极线3与第一引脚N-2相连，…，电极线N与第一引脚1相连。
应理解，编号为偶数的电极线与第一引脚一一对应相连，当N为偶数时，电极线的序号与第一引脚的序号相加为N；当N为奇数时，电极线的序号与第一引脚的序号相加为N+1。
如此，编号为偶数的电极线与第一引脚是对应连接的，即电极线E与第一引脚E相连，如电极线2与第一引脚2相连，电极线4与第一引脚4相连，电极线6与第一引脚6相连，…，其中E为偶数，这样也能够在一定程度上简化接线操作过程。
当然，可以理解的是，也可以不改变N个第二感应层电极线301与N个第一引脚的接线方式，即两者还是按照编号一一对应的方式进行接线，通过改变内置于智能切换开关801的控制模块内的程序来实现对第二感应层图形通道302的穿插扫描。
进一步地，m个第二引脚为在智能切换开关801的第二端依次排列的第二引脚1、第二引脚2、…、第二引脚m，m个通道为依次排列的通道1、通道2、…、通道m，m个第二引脚按如下规则与m个通道相连：
第二引脚1与通道1相连，第二引脚2与通道2相连，…，第二引脚m与通道m相连，也即是一第二引脚与一通道连接，并且第二引脚1至第二引脚m分别与通道1至通道m一一对应连接。采用这种按照排列顺序一一对应连接的方式，便于接线操作，且接线后的线路十分规整，便于后期的检修和维护。
可以理解的是，本申请所述的大尺寸电容触摸屏为50英寸以上的触摸屏。
本领域的技术人员能够理解的是，在不冲突的前提下，上述各可选方案可以自由地组合、叠加。
以上仅为本申请的可选实施例而已，并不用于限制本申请。对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (15)

  1. 一种电容触摸屏控制板，设于大尺寸电容触摸屏内部，所述大尺寸电容触摸屏包括第一感应层和第二感应层，所述第一感应层包括第一感应层图形通道和第一感应层电极线，所述第二感应层包括N个第二感应层图形通道和对应的第二感应层电极线，所述第一感应层作为驱动级，所述第二感应层作为接收级，所述第二感应层通过第二感应电极线与所述电容触摸屏控制板连接，其中，
    所述电容触摸屏控制板包括智能切换开关和触控IC模块，所述触控IC模块具有m个通道，所述智能切换开关的第一端包括N个第一引脚，分别与所述第二感应层的N个第二感应层电极线相连，所述智能切换开关的第二端包括m个第二引脚，分别与所述触控IC模块的m个通道相连，其中，m<N；
    所述智能切换开关的第二端的m个第二引脚能够依序接通第一端的部分第一引脚，使得所述触控IC模块的m个通道能够遍历所述第二感应层的N个第二感应层图形通道。
  2. 根据权利要求1所述的电容触摸屏控制板，其中，所述N个第一引脚为在所述智能切换开关的第一端依次排列的第一引脚1、…、第一引脚m、…、第一引脚N，所述N个第二感应层电极线包括依次排列的电极线1、…、电极线m、…、电极线N，所述N个第二感应层电极线按如下规则与所述N个第一引脚相连：
    电极线1与第一引脚1相连，…，电极线m与第一引脚m相连，…，电极线N与第一引脚N相连。
  3. 根据权利要求1所述的电容触摸屏控制板，其中，所述N个第一引脚为在所述智能切换开关的第一端依次排列的第一引脚1、…、第一引脚m、…、第一引脚N，所述N个第二感应层电极线包括依次排列的电极线1、…、电极线m、…、电极线N，所述N个第二感应层电极线按如下规则与所述N个第一引脚相连：
    电极线1与第一引脚1相连，电极线2与第一引脚N相连，电极线3与第一引脚2相连，电极线4与第一引脚N-1相连，…。
  4. 根据权利要求1所述的电容触摸屏控制板，其中，所述N个第一引脚为在所述智能切换开关的第一端依次排列的第一引脚1、…、第一引脚m、…、第一引脚N，所述N个第二感应层电极线包括依次排列的电极线1、…、电极线m、…、电极线N，所述N个第二感应层电极线按如下规则与所述N个第一引脚相连：
    电极线1与第一引脚N相连，电极线2与第一引脚1相连，电极线3与第一引脚N-1相连，电极线4与第一引脚2相连，…。
  5. 根据权利要求1所述的电容触摸屏控制板，其中，所述N个第一引脚为在所述智能切换开关的第一端依次排列的第一引脚1、…、第一引脚m、…、第一引脚N，所述N个第二感应层电极线包括依次排列的电极线1、…、电极线m、…、电极线N，所述N个第二感应层电极线按如下规则与所述N个第一引脚相连：
    编号为奇数的电极线与第一引脚对应相连，当N为偶数时，电极线2与第一引脚N相连，电极线4与第一引脚N-2相连，…，电极线N与第一引脚2相连，当N为奇数时，电极线2与第一引脚N-1相连，电极线4与第一引脚N-3相连，…，电极线N-1与第一引脚2相连。
  6. 根据权利要求1所述的电容触摸屏控制板，其中，所述N个第一引脚为在所述智能切换开关的第一端依次排列的第一引脚1、…、第一引脚m、…、第一引脚N，所述N个第二感应层电极线包括依次排列的电极线1、…、电极线m、…、电极线N，所述N个第二感应层电极线按如下规则与所述N个第一引脚相连：
    编号为偶数的电极线与第一引脚对应相连，当N为偶数时，电极线1与第一引脚N-1相连，电极线3与第一引脚N-3相连，…，电极N-1与第一引脚2相连，当N为奇数时，电极线1与第一引脚N相连，电极线3与第一引脚N-2相连，…，电极线N与第一引脚1相连。
  7. 根据权利要求2所述的电容触摸屏控制板，其中，所述智能切换开关包括控制模块，所述控制模块用于控制所述第二端的m个第二引脚按由第一引脚1至第一引脚N的顺序依序接通所述第一端的部分第一引脚。
  8. 根据权利要求1所述的电容触摸屏控制板，其中，所述m个第二引脚为在所述智能切换开关的第二端依次排列的第二引脚1、第二引脚2、…、第二引脚m，所述m个通道为依次排列的通道1、通道2、…、通道m，所述m个第二引脚按如下规则与所述m个通道相连：
    第二引脚1与通道1相连，第二引脚2与通道2相连，…，第二引脚m与通道m相连。
  9. 一种大尺寸电容触摸屏，其中，包括：
    第一感应层和第二感应层，所述第一感应层包括第一感应层图形通道和第一感应层电极线，所述第二感应层包括N个第二感应层图形通道和对应的第二感应层电极线，所述第一感应层作为驱动级，所述第二感应层作为接收级；以及
    如权利要求1-8任一项所述的电容触摸屏控制板，所述电容触摸屏控制板与所述第二感应层连接。
  10. 根据权利要求9所述的大尺寸电容触摸屏，其中，所述N个第二感应层图形通道为电容触摸屏X轴的图形通道或者Y轴的图形通道。
  11. 根据权利要求9所述的大尺寸电容触摸屏，其中，所述第一感应层通道和所述第二感应层通道均可为X轴或Y轴的图形通道；
    并且，所述第一感应层通道为X轴的图形通道时，则所述第二感应层通道为Y轴的图形通道；所述第一感应层通道为Y轴的图形通道时，则所述第二感应层通道为X轴的图形通道。
  12. 根据权利要求9所述的大尺寸电容触摸屏，其中，所述大尺寸电容触摸屏为50英寸以上的触摸屏。
  13. 根据权利要求9所述的大尺寸电容触摸屏，其中，所述大尺寸电容触摸屏还包括前保护面板、液晶显示层、屏蔽层以及后保护面板；
    所述前保护面板、所述第一感应层、所述第二感应层、所述液晶显示层、所述屏蔽层以及所述后保护面板依次贴合连接。
  14. 根据权利要求13所述的大尺寸电容触摸屏，其中，所述前保护面板、所述第一感应层、所述第二感应层、所述液晶显示层、所述屏蔽层以及所述后保护面板之间均通过光学胶层粘合连接。
  15. 根据权利要求9所述的大尺寸电容触摸屏，其中，所述第一感应层和所述第二感应层采用氧化铟锡材料。
PCT/CN2020/122222 2019-10-23 2020-10-20 一种电容触摸屏控制板及大尺寸电容触摸屏 WO2021078121A1 (zh)

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