WO2020010777A1 - 电容屏控制板及交互智能平板 - Google Patents

电容屏控制板及交互智能平板 Download PDF

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Publication number
WO2020010777A1
WO2020010777A1 PCT/CN2018/117053 CN2018117053W WO2020010777A1 WO 2020010777 A1 WO2020010777 A1 WO 2020010777A1 CN 2018117053 W CN2018117053 W CN 2018117053W WO 2020010777 A1 WO2020010777 A1 WO 2020010777A1
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Prior art keywords
interface
capacitive screen
control board
screen control
terminal
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PCT/CN2018/117053
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English (en)
French (fr)
Inventor
刘天保
邬营杰
Original Assignee
广州视源电子科技股份有限公司
广州视睿电子科技有限公司
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Publication of WO2020010777A1 publication Critical patent/WO2020010777A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • 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

  • the utility model relates to the technical field of touch display, in particular to a capacitive screen control board and an interactive intelligent tablet.
  • the touch screen includes a touch panel and a control panel.
  • the touch panel includes a capacitive screen, a resistive screen, an infrared screen, and the like.
  • the control board needs to communicate with both the touch panel and the main board. Taking a capacitive touch screen as an example, the control board needs to send driving signals and receive feedback signals to the capacitive screen, and it also needs to send touch position information to the motherboard.
  • the utility model provides a capacitive screen control board and an interactive intelligent tablet with good compatibility.
  • an embodiment of the present invention provides a capacitive screen control board, including:
  • At least one first interface is provided on the board, and each of the first interfaces includes a plurality of first signal terminals for sending a driving signal to the capacitive screen;
  • At least one second interface is provided on the board body, and each of the second interfaces includes a plurality of second signal terminals for receiving a feedback signal from the capacitive screen;
  • the first interface is provided on a first side of the plate body
  • the second interface is provided on a second side of the plate body
  • the first side is adjacent to the second side.
  • the first interface further includes at least one first ground terminal.
  • the first interface further includes at least one first shield terminal.
  • the terminal arrangement of the first interface is as follows: at least one of the first ground terminal, at least one of the first shield terminal, a plurality of the first signal terminals, and at least one of the first A shield terminal and at least one of the first ground terminals.
  • the second interface further includes at least one second ground terminal.
  • the method further includes at least one third interface provided on the board, and each of the third interfaces includes a plurality of third signal terminals for sending a driving signal to the capacitive screen.
  • the structure of the third interface is the same as the structure of the first interface.
  • the third interface is provided on a third side of the plate body, the third side is opposite to the first side, and is adjacent to the second side.
  • the first interface and the second interface are both FFC connectors.
  • USB interface and a 10-pin FFC connector for outputting touch position signals.
  • the USB interface and the 10-pin FFC connector are provided on the fourth side of the board. Four sides are opposite to the second side and adjacent to the first side.
  • an embodiment of the present invention provides an interactive smart tablet, including: a capacitive screen, a control board, and a backplane, the control board is fixed to the backplane, and the control board is any one of the foregoing embodiments.
  • the capacitive screen control board is any one of the foregoing embodiments.
  • the second side is located at the lower left of the first side.
  • the communication interface controlled by the capacitive screen provided by the utility model is standardized, has good compatibility, and is assembled.
  • FIG. 1 is a schematic structural diagram of a first embodiment of a capacitive screen control board according to the present invention
  • FIG. 2 is a schematic structural diagram of a second embodiment of a capacitive screen control board according to the present invention.
  • FIG. 3 is a schematic structural diagram of a preferred embodiment of a capacitive screen control board according to the present invention.
  • FIG. 1 is a schematic structural diagram of a first embodiment of a capacitive screen control board of the present invention
  • FIG. 2 is a schematic structural diagram of a second embodiment of a capacitive screen control board of the present invention
  • Schematic diagram of the preferred embodiment As shown in FIGS.
  • the capacitive screen control board provided by the embodiment of the present invention includes: a board body 5; at least one first interface 1 provided on the board body 5, each first interface 1 includes a plurality of A first signal terminal for sending a driving signal to the capacitive screen; at least one second interface 2 provided on the board body 5, each second interface 2 includes a plurality of first interfaces for receiving a feedback signal from the capacitive screen Two signal terminals; a first interface 1 is provided on the first side of the board body 5, a second interface 2 is provided on the second side of the board body 5, and the first side is adjacent to the second side.
  • the terminals are preferably pins, jacks, line cards, or pins.
  • the capacitive screen control board provided by the embodiment of the present utility model sends a driving signal to the capacitive screen for progressive scanning through the first signal terminal of the first interface 1, and receives a feedback signal from the capacitive screen through the second signal terminal of the second interface 2.
  • the capacitance value changes, and the position of the touch point is obtained at the intersection of the TX channel and the RX channel that changes according to the capacitance value.
  • the interfaces 2 are located on two adjacent sides of the board 5 respectively, and can correspond to the TX channel and the RX channel of the capacitive screen, which achieves standardization, good compatibility and easy assembly.
  • the capacitive screen control board implementeds control of the capacitive screen through the first interface 1 and the second interface 2.
  • the TX to the capacitive screen is transmitted through the first interface 1
  • the channel sequentially sends a driving signal (progressive scanning), and receives the RX channel feedback signal of the capacitive screen through the second interface 2.
  • the feedback signal reflects the change in the amount of charge caused by the touch, so that the touch position can be determined.
  • the first interface 1 generally refers to a type of interface, which realizes the transmission of driving signals to the capacitive screen
  • the second interface 2 refers to a type of interface, which realizes the feedback of the capacitive screen.
  • Other components required by the capacitive screen control board according to the embodiment of the present invention in order to realize its basic functions can adopt the existing technology, which can be obtained by those skilled in the art, and therefore will not be described again.
  • the capacitive screen control board provided by the embodiment of the present utility model standardizes the first interface 1 and the second interface 2.
  • the driving signal is sent to the capacitive screen through the first signal terminal of the first interface 1, and the second interface 2
  • the signal terminal receives the feedback signal from the capacitive screen, which improves the compatibility of the device and facilitates the design and selection.
  • the number of channels can be expanded, which can meet different communication needs and facilitate assembly. .
  • the first interface 1 further includes at least one first ground terminal.
  • a stable level reference is provided for the first interface 1, and at the same time, the electrostatic protection of the first interface 1 is realized, and the service life of this embodiment is extended.
  • the first ground terminal is generally located on both sides of the terminal, that is, the first ground terminal is on one side or both sides of the first signal terminal.
  • the first interface 1 further includes at least one first shield terminal.
  • the first shield terminal is generally located on both sides of the first signal terminal, that is, the first shield terminal is on one side or both sides of the first signal terminal.
  • the first interface 1 has both a first ground terminal, a first shield terminal, and a first signal terminal.
  • the terminals of the first interface 1 are arranged in order, and the first shield terminal is located at the first Between the ground terminal and the first signal terminal.
  • the terminals of the first interface 1 are sequentially arranged as follows: at least one first ground terminal, at least one first shield terminal, multiple first signal terminals, at least one first shield terminal, and at least one first ground terminal.
  • the standardized definition of the first interface 1 improves equipment compatibility and facilitates design selection.
  • the terminals of the first interface 1 are arranged in sequence as: two first ground terminals, one first shield terminal, multiple first signal terminals, one first shield terminal, two first terminals Ground terminal.
  • the second interface 2 further includes at least one second ground terminal.
  • the second ground terminal By providing the second ground terminal, a stable level reference is provided for the second interface 2, and at the same time, the electrostatic protection of the second interface 2 is realized, and the service life of this embodiment is extended.
  • the second ground terminal is generally located on both sides of the terminal, that is, one side or both sides of the second signal terminal are the second ground terminal.
  • the first interface 1 of the capacitive screen control board of the present invention is disposed on the first side of the board body 5, the first interface 1 is disposed along the first side and is sequentially arranged, and the second interface 2
  • the second interface 2 is arranged along the second side and arranged in sequence, wherein the first side is adjacent to the second side, that is, the first side and the second side are on the plate 5 Adjacent sides.
  • the above structural arrangement ensures that on the board 5, the first interface 1 and the second interface 2 are physically separated, and can correspond to the input and feedback of the capacitive screen, which facilitates the wiring of the communication connection line and the first Interface 1 and second interface 2 are connected to the capacitive screen.
  • the first side may be the right side of the plate body 5, and the second side may be the lower side of the plate body 5, that is, the lower left side of the first side.
  • the capacitive screen control board further includes at least one third interface 3, and each third interface 3 includes a driver for sending a drive to the capacitive screen.
  • a plurality of third signal terminals of the signal, and the third interface 3 is provided on the board body 5.
  • the third interface 3 is an extension of the first interface 1, and the combination of the first interface 1 and the third interface 3 can realize progressive scanning of the capacitive screen.
  • the third interface 3 is used as a supplement to the first interface 1, that is, the first interface 1 and the third interface 3 respectively send driving signals to two opposite sides of the capacitive screen, thereby avoiding using the first interface 1 alone.
  • the third interface 3 has the same structure as the first interface 1.
  • the structure of the third interface 3 is the same as that of the first interface 1. While expanding the types of channels, the types of interfaces have not been increased to ensure the compatibility of the capacitive screen control board.
  • the third edge is disposed opposite to the first edge, and the third interface 3 is disposed on the third side of the board 5, that is, the board 5
  • the third side is the opposite side of the first side.
  • the third interface 3 is used to input a driving signal from the side opposite to the input side of the first interface 1 to the capacitive screen to avoid problems such as signal attenuation.
  • the third interface 3 can also be provided on the third side. It further facilitates the wiring of the communication connection lines and ensures the connection between each interface and the capacitive screen.
  • At least one first interface 1 corresponds to at least one third interface 3 in a one-to-one correspondence.
  • the above structural settings ensure the good working characteristics of the capacitive screen control board.
  • the previous second interface and / or the next second interface are also It includes at least one second shielding terminal, and the second shielding terminal is located between the second signal terminal of the previous second interface and the second signal terminal of the subsequent second interface.
  • Each second interface 2 is provided with a plurality of second signal terminals, and a second shield terminal is provided between two adjacent second interfaces 2 to ensure that the signals transmitted by the adjacent two second interfaces 2 Occasionally this interference occurred.
  • the first interface 1, the second interface 2 and the third interface 3 are all flexible flat cable connectors (FFC connectors).
  • FFC connectors Use FFC connector, the signal transmission effect is better, and the scalability is strong.
  • first interface 1 and the second interface 2 have the same structure, and the first interface 1 and the second interface 2 have the same structure, which further reduces the interface model and facilitates design and selection.
  • a preferred embodiment provided by the capacitive screen control board of the present invention includes: three second interfaces 2, two first interfaces 1, and two third interfaces 3. Among them, two first interfaces 1 and two first interfaces 1
  • the three interfaces 3 are aligned one by one to form two pairs of transmitting interfaces, namely TX1 and TX2, and each third interface 3 is a receiving interface, respectively RX1, RX2, and RX3.
  • the first interface 1 is provided on the first side (right side) of the board body 5
  • the second interface 2 is provided on the second side (lower side, that is, the lower left side of the first side) of the board body 5.
  • the third interface is provided on the left side of the board 5.
  • Table 1 is an interface definition of the transmitting interface of the capacitive screen control board provided by the preferred embodiment of the present invention
  • Table 2 is an interface definition of the receiving interface of the capacitive screen control board provided by the preferred embodiment of the present invention.
  • CN1 and CN4 in Table 1 correspond to the first interface 1 and the third interface 3 on the upper part of the capacitive screen control board in FIG. 3, and CN2 and CN3 in Table 1 correspond to the lower part of the capacitive screen control board in FIG. 3, respectively.
  • RX1, RX2, and RX2 in Table 2 correspond to the three second interfaces 2 shown from right to left in FIG. 3, respectively.
  • the capacitive screen control board further includes a fourth interface 4 for outputting a touch position signal.
  • the fourth interface 4 is provided on the fourth side of the board body 5, the fourth side is opposite to the second side, and is adjacent to the first side.
  • the fourth interface 4 may be one interface or multiple interfaces, and the multiple interfaces may be interfaces of the same type or interfaces of different types.
  • the fourth interface 4 may be a universal serial bus interface (USB interface 41) and / or a 10-pin FFC connector. The fourth interface 4 selects the USB interface 41 for stable signal transmission and low manufacturing cost.
  • the 10-pin FFC connector used for the fourth interface 4 includes a first serial communication terminal, a second serial communication terminal, at least one third ground terminal, two serial bus terminals, and at least one power supply. Terminal, and at least one free terminal.
  • the fourth interface 4 adopts the above-mentioned terminal settings, and realizes asynchronous transmission and reception of signals, and transfers between serial communication and parallel communication.
  • Table 3 is an interface definition of the fourth interface 4 of the touch device provided by the preferred embodiment of the present invention.
  • an embodiment of the present invention provides an interactive smart tablet, which includes: a capacitive screen, a control board, and a backplane.
  • the control board is fixed on the backplane, and the control board is described in any one of the foregoing embodiments.
  • Capacitive screen control board is described in any one of the foregoing embodiments.
  • the second side is located at the lower left of the first side.
  • the terms “first”, “second”, and “third” are used for descriptive purposes only, and cannot be understood to indicate or imply relative importance; the term “plurality” refers to two or two More than one, unless explicitly defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like should be understood in a broad sense. For example, “connected” can be a fixed connection, a detachable connection, or an integral connection; “connected” can It is directly connected or indirectly connected through an intermediate medium.
  • the specific meanings of the above terms in the present utility model can be understood according to specific situations.

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Abstract

一种电容屏控制板及交互智能平板,其中电容屏控制板包括：板体；至少一个第一接口(1)，设于所述板体(5)上，每个所述第一接口(1)均包括多个用于向所述电容屏发送驱动信号的第一信号端子；至少一个第二接口(2)，设于所述板体(5)上，每个所述第二接口(2)均包括多个用于从所述电容屏接收反馈信号的第二信号端子；所述第一接口(1)设于所述板体(5)的第一侧，所述第二接口(2)设于所述板体(5)的第二侧，所述第一侧与所述第二侧相邻。该电容屏控制板兼容性好。

Description

电容屏控制板及交互智能平板 技术领域
本实用新型涉及触控显示技术领域，具体而言，涉及一种电容屏控制板及交互智能平板。
背景技术
本实用新型对于背景技术的描述属于与本实用新型相关的相关技术，仅仅是用于说明和便于理解本实用新型的实用新型内容，不应理解为申请人明确认为或推定申请人认为是本实用新型在首次提出申请的申请日的现有技术。
触控屏包括触控面板和控制板，从原理上分，触控面板包括电容屏、电阻屏、红外屏等。触控屏在使用过程中，控制板既需要与触控面板通信，又需要与主板通信。以电容类的触控屏为例，控制板需要向电容屏发送驱动信号和接收反馈信号，还需要将触控位置信息发送给主板。
然而，现有的电容屏控制板未能标准化，不利于装配。
实用新型内容
本实用新型提供了兼容性较好的电容屏控制板及交互智能平板。
一方面，本实用新型实施例提供一种电容屏控制板，包括：
板体；
至少一个第一接口，设于所述板体上，每个所述第一接口均包括多个用于向所述电容屏发送驱动信号的第一信号端子；
至少一个第二接口，设于所述板体上，每个所述第二接口均包括多个用于从所述电容屏接收反馈信号的第二信号端子；
所述第一接口设于所述板体的第一侧，所述第二接口设于所述板体的第二侧，所述第一侧与所述第二侧相邻。
作为上述实施例的优选，所述第一接口还包括至少一个第一接地端子。
作为上述实施例的优选，所述第一接口还包括至少一个第一屏蔽端子。
作为上述实施例的优选，所述第一接口的端子排布如下：至少一个所述第一接地端子、至少一个所述第一屏蔽端子、多个所述第一信号端子、至少一个所述第一屏蔽端子、至少一个所述第一接地端子。
作为上述实施例的优选，所述第二接口还包括至少一个第二接地端子。
作为上述实施例的优选，还包括设于板体上的至少一个第三接口，每个所述第三接口均包括多个用于向所述电容屏发送驱动信号的第三信号端子。
作为上述实施例的优选，所述第三接口的结构与所述第一接口结构相同。
作为上述实施例的优选，所述第三接口设于所述板体的第三侧，所述第三侧与所述第一侧相对，与所述第二侧相邻。
作为上述实施例的优选，所述第一接口以及所述第二接口均为FFC连接器。
作为上述实施例的优选，还包括用于输出触控位置信号的USB接口和10针FFC连接器，所述USB接口和10针FFC连接器设于所述板体的第四侧，所述第四侧与所述第二侧相对，与所述第一侧相邻。
第二方面，本实用新型实施例提供了一种交互智能平板，包括：电容屏、控制板和背板，所述控制板固定于所述背板上，所述控制板为上述任一实施例所述的电容屏控制板。
作为上述实施例的优选，所述第二侧位于所述第一侧的左下方。
本实用新型所提供的电容屏控制的通信接口进行标准化，兼容性好，利用装配。
本实用新型的附加方面和优点将在下面的描述部分中变得明显，或通过本实用新型的实践了解到。
附图说明
本实用新型的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是本实用新型所述电容屏控制板的第一种实施例的结构示意图；
图2是本实用新型所述电容屏控制板的第二种实施例的结构示意图；
图3是本实用新型所述电容屏控制板的优选实施例的结构示意图。
其中，图1至图3中附图标记与部件名称之间的对应关系为：
1第一接口；2第二接口；3第三接口；4第四接口；41USB接口；5板体。
具体实施方式
为了能够更清楚地理解本实用新型的上述目的、特征和优点，下面结合附图和具体实施方式对本实用新型进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本实用新型，但是，本实用新型还可以采用其他不同于在此描述的其他方式来实施，因此，本实用新型的保护范围并不受下面公开的具体实施例的限制。
下述讨论提供了本实用新型的多个实施例。虽然每个实施例代表了实用新型的单一组合，但是本实用新型不同实施例可以替换，或者合并组合，因此本实用新型也可认为包含所记载的相同和/或不同实施例的所有可能组合。因而，如果一个实施例包含A、B、C，另一个实施例包含B和D 的组合，那么本实用新型也应视为包括含有A、B、C、D的一个或多个所有其他可能的组合的实施例，尽管该实施例可能并未在以下内容中有明确的文字记载。
图1是本实用新型电容屏控制板的第一种实施例的结构示意图；图2是本实用新型电容屏控制板的第二种实施例的结构示意图；图3是本实用新型电容屏控制板的优选实施例的结构示意图。如图1-3所示，本实用新型实施例所提供的电容屏控制板包括：板体5；设于板体5上的至少一个第一接口1，每个第一接口1均包括多个用于向电容屏发送驱动信号的第一信号端子；设于板体5上的至少一个第二接口2，每个第二接口2均包括多个用于从所述电容屏接收反馈信号的第二信号端子；第一接口1设于板体5的第一侧，第二接口2设于板体5的第二侧，第一侧与第二侧相邻。本实用新型中，端子(包括第一信号端子和第二信号端子)优选为插针、插孔、线卡、或引脚。
本实用新型实施例提供的电容屏控制板通过第一接口1的第一信号端子向电容屏发送驱动信号进行逐行扫描，通过第二接口2的第二信号端子从电容屏接收反馈信号，当有触控操作时，电容值产生变化，根据电容值产生变化的TX通道和RX通道的交汇处得到触摸点的位置，本实用新型实施例的电容屏控制板上的第一接口1和第二接口2分别位于板体5的相邻的两侧，可以与电容屏的TX通道和RX通道相应，实现了标准化，兼容性好，便于装配。
如图1-3所示，本实用新型实施例所提供的电容屏控制板通过第一接口1以及第二接口2实现对电容屏的控制，具体地，通过第一接口1向电容屏的TX通道依次发出驱动信号(逐行扫描)，通过第二接口2接收电容屏的RX通道反馈信号，该反馈信号反应因触摸而引起的电荷量变化，从而可以确定触摸位置。事实上，第一接口1泛指一类接口，实现了驱动信号传递至电容屏；第二接口2泛指一类接口，实现了电容屏传递反馈信号。本实用新型实施例的电容屏控制板为实现其基本功能而需要的其他元 件均可采用现有技术，本领域技术人员可以获得，因此不再赘述。
本实用新型实施例提供的电容屏控制板对第一接口1以及第二接口2进行了标准化，通过第一接口1的第一信号端子向电容屏发送驱动信号，通过第二接口2的第二信号端子接收电容屏的反馈信号，提升了设备的兼容性，方便了设计选型；通过对两类接口的个数拓展，即可实现信道个数的拓展，可满足不同的通信需求，便于装配。
在一个优选实施例中，第一接口1还包括至少一个第一接地端子。通过设置第一接地端子，为第一接口1的提供了稳定的电平参考，同时实现了对第一接口1的静电保护，延长了本实施例的使用寿命。在端子的排布上，第一接地端子一般位于端子的两侧，即第一信号端子一侧或两侧为第一接地端子。
在一个优选实施例中，第一接口1还包括至少一个第一屏蔽端子。通过设置第一屏蔽端子，防止了电子元件以及外界对第一接口1上的端子产生电磁干扰。在端子的排布上，第一屏蔽端子一般位于第一信号端子的两侧，即第一信号端子一侧或两侧为第一屏蔽端子。
在一个优选实施例中，第一接口1同时具有第一接地端子、第一屏蔽端子和第一信号端子，此时，第一接口1的端子按序排布为，第一屏蔽端子位于第一接地端子和第一信号端子之间。例如，第一接口1的端子按序排布如下：至少一个第一接地端子、至少一个第一屏蔽端子、多个第一信号端子、至少一个第一屏蔽端子、至少一个第一接地端子。通过对第一接口1进行标准化定义，提升了设备兼容性，方便了设计选型。在一个优选实施例中，第一接口1的端子按序排布为，两个第一接地端子、一个第一屏蔽端子、多个第一信号端子、一个第一屏蔽端子、两个个第一接地端子。
在一个实施例中，第二接口2还包括至少一个第二接地端子。通过设置第二接地端子，为第二接口2的提供了稳定的电平参考，同时实现了对第二接口2的静电保护，延长了本实施例的使用寿命。在端子的排布上， 第二接地端子一般位于端子的两侧，即第二信号端子一侧或两侧为第二接地端子。
如图1至图3所示，本实用新型电容屏控制板的第一接口1设于板体5的第一侧，第一接口1沿第一侧设置并顺次排布，第二接口2设于板体5的第二侧，第二接口2沿第二侧设置并顺次排布，其中，第一侧与第二侧相邻，即第一侧与第二侧为板体5上相邻的两侧。上述结构设置保证了，在板体5上，第一接口1与第二接口2实现了物理位置区分，并可与电容屏的输入与反馈相对应，方便了通信连接线的布线、以及第一接口1、第二接口2与电容屏的连接。作为上述实施例的优选，如图3所示，第一侧可以是板体5的右侧，第二侧可以是板体5的下侧，即第一侧的左下方一侧。
如图2和图3所示，本实用新型电容屏控制板的优选实施例中，电容屏控制板还包括至少一个第三接口3，每个第三接口3均包括用于向电容屏发送驱动信号的多个第三信号端子，第三接口3设在板体5上。通过设置第三接口3，可以增加不同种类的信道，扩展了电容屏控制板的通信功能。在一个优选实施例中，第三接口3作为第一接口1的扩展，第一接口1和第三接口3组合起来才能实现电容屏的逐行扫描。在另外一个实施例中，第三接口3作为第一接口1的补强，即第一接口1和第三接口3分别向电容屏的两相对侧发送驱动信号，避免了单独使用第一接口1发送驱动信号可能造成的信号衰减的问题。
如图2和图3所示，本实用新型电容屏控制板的优选实施例中，第三接口3与第一接口1结构相同。第三接口3的结构与第一接口1结构相同，扩展了信道种类的同时，并没有增加接口的种类，保证了电容屏控制板的兼容性。
如图2和图3所示，本实用新型电容屏控制板的优选实施例中，第三边沿与第一边沿相对设置，第三接口3设于板体5的第三侧，即板体5的第三侧为第一侧的相对侧。对于阻抗较大的线路连接，由于第一接口1位 于板体5的第一边沿位置处，输入信号传递至靠近第三边沿位置处的电子元件会产生较大的信号衰弱，甚至畸变，通过设置第三接口3，由第三接口3从与第一接口1的输入侧相对的一侧向电容屏输入驱动信号，可以避免信号衰减等问题，此时第三接口3设于第三侧还可进一步方便了通信连接线的布线、保证各接口与电容屏的连接。
如图2和图3所示，本实用新型电容屏控制板的优选实施例中，至少一个第一接口1与至少一个第三接口3位置一一对应。上述结构设置，保证了电容屏控制板的良好工作特性。
在一个优选实施例中，当第二接口2的个数为两个或两个以上时，对于任意相邻的两个第二接口2，前一个第二接口和/或后一个第二接口还包括至少一个第二屏蔽端子，第二屏蔽端子位于前一个第二接口的第二信号端子与后一个第二接口的第二信号端子之间。每个第二接口2均设置有多个第二信号端子，在相邻的两个第二接口2之间设置第二屏蔽端子，保证了相邻的两个第二接口2所传递的信号之间发生点此干扰。
在一个优选实施例中，第一接口1、第二接口2以及第三接口3均为柔性扁平电缆连接器(FFC连接器)。选用FFC连接器，信号传输的效果较好，可拓展性强。
在一个优选实施例中，第一接口1与第二接口2结构相同，第一接口1与第二接口2结构相同，进一步减少了接口的型号，方便了设计选型。
本实用新型电容屏控制板所提供的一优选实施例包括：三个第二接口2，两个第一接口1，以及两个第三接口3，其中，两个第一接口1与两个第三接口3位置一一对齐，组成两对发送接口，分别为TX1、TX2，每个第三接口3为接收接口，分别为RX1、RX2、RX3。参见图3，第一接口1设于板体5的第一侧(右侧)，第二接口2设于板体5的第二侧(下侧，即第一侧的左下方的一侧)，第三接口设于板体5的左侧。表1是本实用新型优选实施例所提供的电容屏控制板的发送接口的接口定义，表2是本实用新型优选实施例所提供的电容屏控制板的接收接口的接口定义。
表1发送接口的接口定义
Figure PCTCN2018117053-appb-000001
表1中的CN1与CN4分别对应于图3中位于电容屏控制板上部的第一接口1以及第三接口3，表1中的CN2与CN3分别对应于图3中位于电容屏控制板下部的第一接口1以及第三接口3。
表2接收接口的接口定义
Figure PCTCN2018117053-appb-000002
表2中的RX1、RX2、RX2分别对应图3中由右至左示出的三个第二 接口2。
在一个优选实施例中，触控设备的阵列基板如图3所示，电容屏控制板还包括第四接口4，第四接口4用于输出触控位置信号。第四接口4设于板体5的第四侧，第四侧与第二侧相对，与第一侧相邻。
在一个优选实施例中，第四接口4可以是一个接口，也可以是多个接口，多个接口可以是相同类型接口，也可以是不同类型接口。如第四接口4可以是通用串行总线接口(USB接口41)和/或10针FFC连接器。第四接口4选用USB接口41，信号传输稳定，制造成本较低。
在一个优选实施例中，第四接口4选用的10针FFC连接器包括第一串行通讯端子、第二串行通讯端子、至少一个第三接地端子、两个串行总线端子、至少一个电源端子、以及至少一个空接端子。第四接口4采用上述端子设置，实现了信号的异步收发，由串行通信与并行通信间的传输转换。表3是本实用新型优选实施例所提供的触控设备的第四接口4的接口定义。
表3第四接口的接口定义
Figure PCTCN2018117053-appb-000003
第二方面，本实用新型实施例提供了一种交互智能平板，该交互智能平板包括：电容屏、控制板和背板，控制板固定于背板上，控制板为上述任一实施例所述的电容屏控制板。
本实用新型的交互智能平板的一个优选实施例中，第二侧位于第一侧 的左下方。
本实用新型的交互智能平板未述及之处均可采用现有技术，在此不再赘述。
在本实用新型中，术语“第一”、“第二”、“第三”仅用于描述的目的，而不能理解为指示或暗示相对重要性；术语“多个”则指两个或两个以上，除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。
本实用新型的描述中，需要理解的是，术语“上”、“下”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作，因此，不能理解为对本实用新型的限制。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本实用新型的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上仅为本实用新型的优选实施例而已，并不用于限制本实用新型，对于本领域的技术人员来说，本实用新型可以有各种更改和变化。凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。

Claims (12)

  1. 电容屏控制板，其特征在于，包括：
    板体；
    至少一个第一接口，设于所述板体上，每个所述第一接口均包括多个用于向所述电容屏发送驱动信号的第一信号端子；
    至少一个第二接口，设于所述板体上，每个所述第二接口均包括多个用于从所述电容屏接收反馈信号的第二信号端子；
    所述第一接口设于所述板体的第一侧，所述第二接口设于所述板体的第二侧，所述第一侧与所述第二侧相邻。
  2. 根据权利要求1所述的电容屏控制板，其特征在于，所述第一接口还包括至少一个第一接地端子。
  3. 根据权利要求2所述的电容屏控制板，其特征在于，所述第一接口还包括至少一个第一屏蔽端子。
  4. 根据权利要求3所述的电容屏控制板，其特征在于，所述第一接口的端子排布如下：至少一个所述第一接地端子、至少一个所述第一屏蔽端子、多个所述第一信号端子、至少一个所述第一屏蔽端子、至少一个所述第一接地端子。
  5. 根据权利要求1所述的电容屏控制板，其特征在于，所述第二接口还包括至少一个第二接地端子。
  6. 根据权利要求1所述的电容屏控制板，其特征在于，还包括设于板体上的至少一个第三接口，每个所述第三接口均包括多个用于向所述电容屏发送驱动信号的第三信号端子。
  7. 根据权利要求6所述的电容屏控制板，其特征在于，所述第三接口的结构与所述第一接口结构相同。
  8. 根据权利要求6所述的电容屏控制板，其特征在于，所述第三接口设于所述板体的第三侧，所述第三侧与所述第一侧相对，与所述第二侧相邻。
  9. 根据权利要求1所述的电容屏控制板，其特征在于，所述第一接口以及所述第二接口均为FFC连接器。
  10. 根据权利要求1所述的电容屏控制板，其特征在于，还包括用于输出触控位置信号的USB接口和10针FFC连接器，所述USB接口和10针FFC连接器设于所述板体的第四侧，所述第四侧与所述第二侧相对，与所述第一侧相邻。
  11. 一种交互智能平板，其特征在于，包括：电容屏、控制板和背板，所述控制板固定于所述背板上，所述控制板为权利要求1-10任一项所述的电容屏控制板。
  12. 根据权利要求11所述的交互智能平板，其特征在于，所述第二侧位于所述第一侧的左下方。
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