WO2019237672A1 - 电磁触控结构、侧入式背光显示模组及显示器 - Google Patents

电磁触控结构、侧入式背光显示模组及显示器 Download PDF

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Publication number
WO2019237672A1
WO2019237672A1 PCT/CN2018/118466 CN2018118466W WO2019237672A1 WO 2019237672 A1 WO2019237672 A1 WO 2019237672A1 CN 2018118466 W CN2018118466 W CN 2018118466W WO 2019237672 A1 WO2019237672 A1 WO 2019237672A1
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WIPO (PCT)
Prior art keywords
electromagnetic
back plate
permanent magnet
film
edge portion
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PCT/CN2018/118466
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English (en)
French (fr)
Inventor
邓芳光
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shirui Electronics Co Ltd
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shirui Electronics Co Ltd
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Publication of WO2019237672A1 publication Critical patent/WO2019237672A1/zh
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment

Definitions

  • the present invention relates to the technical field of display devices, and in particular, to an electromagnetic touch structure, a side-type backlight display module and a display.
  • electromagnetic touch technology is used in large-size touch all-in-one machines (above 40 inches), especially when the display module is designed with an edge-lit backlight module.
  • the board is relatively close to the electromagnetic antenna module, so that during electromagnetic writing, the electromagnetic signal will be partially shielded by the metal back plate, resulting in a decrease in the magnetic flux of the electromagnetic coil of the electromagnetic antenna module, which will cause difficulty in identifying the writing signal, which will make the whole machine
  • there will be problems such as disconnection and failure to draw the line, which will cause the whole machine to fail to operate normally.
  • the present invention provides an electromagnetic touch structure, an edge-lit backlight display module and a display, which can strengthen the electromagnetic signals shielded by the metal back plate and can normally recognize touch or writing signals.
  • An electromagnetic touch structure including a frame structure and an electromagnetic screen structure provided on the frame structure;
  • the frame structure includes a flat metal back plate, and a frame structure ring-shaped at a peripheral edge of the metal back plate;
  • the electromagnetic screen structure includes a light guide plate and an electromagnetic film stacked between the metal back plate and the frame structure, and a permanent magnet structure provided on the metal back plate.
  • the permanent magnet structure is located on the metal back plate.
  • the frame structure is inside, and the permanent magnet structure is located between the electromagnetic film and the metal back plate, and the electromagnetic film is disposed above or below the light guide plate.
  • the structure of the electromagnetic film and the electromagnetic screen is provided between the metal back plate and the frame structure, the distance between the electromagnetic antenna module corresponding to the electromagnetic film and the metal back plate is relatively short, so that the metal back plate and the frame The structure forms an electromagnetic shield to the electromagnetic screen structure located between the two, resulting in a decrease in the magnetic flux of the electromagnetic coil of the electromagnetic antenna module near the metal back plate.
  • the application can strengthen the magnetic flux of the coil of the electromagnetic antenna module near the metal back plate, thereby weakening or eliminating the metal back plate and the frame structure against the electromagnetic film and
  • the electromagnetic signal shielding of the electromagnetic screen structure so that when using the electromagnetic screen structure for electromagnetic writing, the electromagnetic signal structure can be normally identified at the position of the electromagnetic screen structure near the metal back plate and the frame structure to ensure the entire electromagnetic screen structure. Normal use.
  • the permanent magnet structure is configured as a silicon steel sheet or a silicon steel sheet.
  • the permanent magnet structure is disposed between the metal back plate and the light guide plate;
  • the permanent magnet structure is disposed between the metal back plate and the electromagnetic film.
  • the metal back plate includes a flat plate-shaped back plate body
  • the electromagnetic film includes a film body corresponding to the back plate body
  • the permanent magnet structure includes a portion provided on the back plate body and the film body. Between the permanent magnet bodies.
  • the metal back plate further includes a back plate edge portion located on a peripheral side of the back plate main body, and the frame structure is provided on the back plate edge portion;
  • the electromagnetic film further includes a film edge portion located on a peripheral side of the film main body and corresponding to the edge portion of the back plate, and the film edge portion is located between the frame structure and the edge portion of the back plate;
  • the permanent magnet structure further includes a first permanent magnet edge portion located on a peripheral side of the permanent magnet body, and the first permanent magnet edge portion is located between the film edge portion and the back plate edge portion.
  • the permanent magnet structure further includes a second permanent magnet edge portion located between the film edge portion and the frame structure, and the first permanent magnet edge portion and the second permanent magnet edge portion are respectively wrapped in Both sides of the edge portion of the film.
  • the permanent magnet main body and the permanent magnet auxiliary body are provided independently of each other;
  • the permanent magnet main body extends around the edge portion of the film and is connected to the permanent magnet auxiliary body.
  • the electromagnetic screen structure further includes a display screen body provided in the frame structure, and the display screen body corresponds to the electromagnetic film.
  • the present invention also provides a side-type backlight display module, which includes the electromagnetic touch structure as described above.
  • the present invention also provides a display, which includes the side-type backlight display module as described above.
  • the invention has the following beneficial effects: by adding a permanent magnet structure (such as a silicon (silicon) steel sheet) on the metal back plate of the electromagnetic touch structure, the magnetic flux of the coil of the electromagnetic antenna module near the metal back plate is strengthened, thereby obtaining Improve the signal response of electromagnetic writing of the entire electromagnetic screen structure in this application scenario, thereby improving the problem of abnormal writing of the whole machine.
  • a permanent magnet structure such as a silicon (silicon) steel sheet
  • FIG. 1 is a schematic block diagram of a sectional structure of an electromagnetic touch structure according to the present invention.
  • FIG. 2 is a schematic block diagram of a cross-sectional structure of an electromagnetic touch structure according to some embodiments of the present invention.
  • FIG. 3 is a partially enlarged schematic view of part A in FIG. 2.
  • an embodiment of the present invention provides an electromagnetic touch structure including a frame structure and an electromagnetic screen structure provided on the frame structure.
  • the frame structure can provide support and fixation for the electromagnetic screen structure, and the electromagnetic screen structure can achieve electromagnetic writing and control functions.
  • the above-mentioned frame structure includes a flat metal back plate 100 and a frame structure 200 ring-shaped around the peripheral edge of the metal back plate 100.
  • the above electromagnetic screen structure can be stacked on the metal back plate 100, and the frame structure 200 can be positioned and fixed from the periphery of the electromagnetic screen structure, thereby fixing the electromagnetic screen structure to the frame structure.
  • the metal back plate 100 may include a flat back plate body 110 and a back plate edge portion 120 provided on a peripheral side of the back plate body.
  • the frame structure 200 is provided on the edge of the back plate. ⁇ 120 ⁇ On the 120.
  • the peripheral edge of the electromagnetic screen structure is disposed on the edge portion 120 of the back plate, and the middle portion of the electromagnetic screen structure is attached to the back plate body 110.
  • the frame structure 200 may include a frame body 210 provided on the edge portion 120 of the back plate, and a positioning groove 220 provided on the frame body 210.
  • the positioning groove 220 is located on the frame body 210 and the edge portion of the back plate. 120, and the peripheral edges of the above-mentioned electromagnetic screen structure are located in the positioning slot 220, thereby positioning and fixing the electromagnetic screen structure.
  • the electromagnetic screen structure may include a light guide plate 300 and an electromagnetic film 400 stacked between the metal back plate 100 and the frame structure 200, and the electromagnetic film 400 may be provided above the light guide plate 300 (to guide the light plate away from the metal back plate 100). Side) or below (the side that guides the light plate facing the metal back plate 100). Moreover, the peripheral edges of the light guide plate 300 and the electromagnetic film 400 are both disposed in the positioning groove 220 between the metal back plate 100 and the frame structure 200 described above, so as to fix the light guide plate 300 and the electromagnetic film 400.
  • the above electromagnetic screen structure may further include a permanent magnet structure provided on the metal back plate 100.
  • the permanent magnet structure is located inside the frame structure 200 (refers to the side of the frame structure facing the metal back plate), and the permanent magnet structure is located on the electromagnetic Between the film 400 and the metal back plate 100.
  • the electromagnetic screen structure since the electromagnetic screen structure is disposed between the metal back plate 100 and the frame structure 200, the distance between the electromagnetic antenna module corresponding to the electromagnetic film 400 and the metal back plate 100 is short, so that the metal back plate 100
  • the bezel structure 200 forms an electromagnetic shield between the electromagnetic screen structure located therebetween, resulting in a decrease in the magnetic flux of the electromagnetic coil of the electromagnetic antenna module near the metal back plate 100.
  • the magnetic flux of the coil of the electromagnetic antenna module near the metal back plate 100 can be strengthened, thereby weakening or eliminating the metal back plate 100 (and the frame Structure 200) Shields the electromagnetic signals of the electromagnetic film 400 and the electromagnetic screen structure, so that when electromagnetic writing is performed using the electromagnetic screen structure, the electromagnetic signal can be normally identified at the position of the electromagnetic screen structure near the metal back plate and the frame structure. , Can ensure the normal use of the entire electromagnetic screen structure.
  • the permanent magnet structure 500 when the electromagnetic film 400 is disposed above the light guide plate 300 (the side where the light guide plate faces away from the metal back plate 100), the permanent magnet structure 500 is disposed between the metal back plate 100 and the light guide plate 300; When the film 400 is disposed below the light guide plate 300 (the side where the light guide plate faces the metal back plate 100), the permanent magnet structure 500 is disposed between the metal back plate 100 and the electromagnetic film 400. Therefore, the permanent magnet structure 500 can be set close to the metal back plate 100 without blocking the light guide plate 300 and other optical components, which can not only enhance the magnetic flux of the coil of the electromagnetic antenna module near the metal back plate 100 to ensure the normal structure of the electromagnetic screen. In use, it will not cause interference to the light guide plate 300 and the optical components, which can ensure that the optical function of the electromagnetic screen structure is normal.
  • the electromagnetic film 400 includes a film body 410 stacked on the back plate body 110
  • the permanent magnet structure 500 includes a permanent magnet body 510 provided between the back plate body 110 and the film body 410. That is, through the permanent magnet body 510 of the permanent magnet structure 500, the electromagnetic performance of the film body 410 of the electromagnetic film 400 located at the back plate main body 110 and the corresponding electromagnetic antenna module is strengthened to strengthen the electromagnetic force at the film body 410.
  • the magnetic flux of the coil of the antenna module can reduce or eliminate the electromagnetic signal shielding of the film main body 410 by the metal back plate 100 and the frame structure 200, so that the film main body 410 can normally identify the electromagnetic signals during use, so as to ensure the entire electromagnetic touch.
  • the structure operates normally at the 110 film body 410 located at the back plate body 110.
  • the electromagnetic film 400 further includes a film edge portion 420 located on the peripheral side of the film body 410 and corresponding to the back plate edge portion 120.
  • the film edge portion 420 is located between the frame body 210 and the back plate edge portion 120 of the frame structure 200. It is located in the positioning groove 220 between the edge 120 of the back plate and the frame body 210. That is, the peripheral edges of the electromagnetic film 400 are positioned and fixed by the film edge portion 420 located between the back plate edge portion 120 and the frame body 210.
  • the permanent magnet structure 500 further includes a first permanent magnet edge portion 520 connected to the peripheral side of the permanent magnet body 510. The first permanent magnet edge portion 520 is located between the film edge portion 420 and the back plate edge portion 120 described above.
  • the edge portion 520 of the first permanent magnet is further extended into the positioning groove 220. That is, the first permanent magnet edge portion 520 can enhance the electromagnetic performance of the film edge portion 420 of the electromagnetic film 400 located between the back plate edge portion 120 and the frame body and the corresponding electromagnetic antenna module, so as to strengthen the film edge edge.
  • the magnetic flux of some coils of the corresponding electromagnetic antenna module at the portion 420 can weaken or eliminate the shielding of the electromagnetic signal of the film edge portion 420 by the metal back plate 100 and the frame structure 200, so that the position of the film edge portion 420 of the electromagnetic film is also reduced.
  • the electromagnetic signal can be recognized normally, so that the entire electromagnetic film 400 can normally recognize the electromagnetic signal, so as to ensure the normal operation of the entire electromagnetic touch structure.
  • the above-mentioned first permanent magnet edge portion 520 will also partially extend to the film main body 410, ensuring electromagnetic performance at the connection transition between the film main body 410 and the film edge portion 420.
  • the electromagnetic film 400 may be disposed below the light guide plate 300, that is, the electromagnetic film 400 is disposed on a side facing the metal back plate 100.
  • the permanent magnet structure 500 may further include a second permanent magnet edge portion located between the film edge portion 420 and the frame body 210 of the frame structure 200, and the second permanent magnet edge portion is also located in the positioning slot 220 of the frame structure 200.
  • the first permanent magnet edge portion 520 and the second permanent magnet edge portion are respectively wrapped on both sides of the film edge portion 420.
  • both the first permanent magnet edge portion and the second permanent magnet edge portion will partially extend to the film body 410, thereby ensuring electromagnetic performance at the connection transition between the film body 410 and the film edge portion 420.
  • the above-mentioned electromagnetic film 400 may be disposed below or above the light guide plate 300.
  • the first permanent magnet edge portion 520 and the second permanent magnet edge portion may be provided independently of each other, that is, they are separately provided on both sides of the film edge portion 420; or, the first permanent magnet edge portion 520 may extend around The end of the film-passing edge portion 420 and the second permanent magnet edge portion are connected to each other. At the same time, the first permanent magnet edge portion and the second permanent magnet edge portion will not cut off the ends of the electromagnetic film and the light guide plate, ensuring good light transmission. .
  • the permanent magnet structure 500 may be provided as a silicon steel sheet or a silicon steel sheet. Such a silicon steel sheet or a silicon steel sheet has excellent electromagnetic performance and can effectively enhance the electromagnetic performance at the edge position of the electromagnetic film 400.
  • the permanent magnet structure 500 may be a monolithic structure, that is, an overall flat plate structure according to the peripheral edge shapes of the metal back plate 100 and the frame structure 300.
  • the permanent magnet junction 500 may be a split structure. That is, the permanent magnet structure 500 is set as a plurality of silicon steel sheets or silicon steel sheets, which are respectively disposed on the metal back plate 100 and on the peripheral edges of the metal back plate 100 and the frame structure 300.
  • the above-mentioned electromagnetic screen structure may further include a display screen 600 provided in the frame structure 200, and the display screen 600 corresponds to the electromagnetic film 400.
  • the electromagnetic screen structure can not only realize the electromagnetic touch function but also the display function.
  • the frame structure 200 may be made of a metal material or a plastic material, and may also be made of other materials as required.
  • the present invention also provides a side-type backlight display module, which includes the electromagnetic touch structure as described above.
  • the present invention also provides a display, which includes the side-type backlight display module as described above.
  • a permanent magnet structure such as a silicon (silicon) steel sheet
  • the magnetic flux of the coil of the electromagnetic antenna module near the metal back plate is strengthened, thereby improving this application scenario.
  • the signal response of electromagnetic writing of the entire electromagnetic screen structure improves the problem of abnormal writing of the whole machine.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

一种电磁触控结构、侧入式背光显示模组及显示器。该电磁触控结构，包括框体结构，以及设于所述框体结构上的电磁屏结构；所述框体结构包括平板状的金属背板（100），以及环设于所述金属背板（100）周侧边缘处的边框结构（200）；所述电磁屏结构包括叠设于所述金属背板（100）和所述边框结构（200）之间的导光板（300）和电磁膜（400），以及设于所述金属背板（100）上的永磁体结构（500），所述永磁体结构（500）位于所述边框结构（200）内侧，且所述永磁体结构（500）位于所述电磁膜（400）和所述金属背板（100）之间，所述电磁膜（400）设于所述导光板（300）上方或下方。上述技术方案，可加强被金属背板（100）屏蔽的电磁信号，可正常识别触控或书写信号。

Description

电磁触控结构、侧入式背光显示模组及显示器 技术领域
本发明涉及显示设备技术领域，特别是涉及一种电磁触控结构、侧入式背光显示模组及显示器。
背景技术
在传统技术中，电磁触控技术应用于大尺寸触控一体机中(40寸以上)，特别是应用于显示屏模组采用侧入式背光模组设计时，由于显示屏模组的金属背板距离电磁天线模组较近，使得在进行电磁书写时，电磁信号会被金属背板屏蔽一部分，导致电磁天线模组的电磁线圈的磁通量减少，会导致书写信号识别困难，从而会使得整机在进行电磁书写笔书写或控制时，会出现断线、画不出线等问题，导致整机无法正常使用。
发明内容
基于此，针对上述问题，本发明提供一种电磁触控结构、侧入式背光显示模组及显示器，可加强被金属背板屏蔽的电磁信号，可正常识别触控或书写信号。
其技术方案如下：
一种电磁触控结构，包括框体结构，以及设于所述框体结构上的电磁屏结构；
所述框体结构包括平板状的金属背板，以及环设于所述金属背板周侧边缘处的边框结构；
所述电磁屏结构包括叠设于所述金属背板和所述边框结构之间的导光板和电磁膜，以及设于所述金属背板上的永磁体结构，所述永磁体结构位于所述边框结构内侧，且所述永磁体结构位于所述电磁膜和所述金属背板之间，所述电磁膜设于所述导光板上方或下方。
传统技术中，由于电磁膜及电磁屏结构设于金属背板和边框结构之间，使得与电磁膜对应的电磁天线模组与金属背板之间的距离较近，从而使得金属背板和边框结构对位于二者之间的电磁屏结构形成了电磁屏蔽，导致电磁天线模组在靠近金属背板的位置处的电磁线圈的磁通量减少。而本申请通过在电磁屏结构与金属背板之间设置永磁体结构，就可以加强靠近金属背板的电磁天线模组的线圈的磁通量，从而减弱或消除金属背板和边框结构对电磁膜及电磁屏结构的电磁信号屏蔽，从而使得在利用电磁屏结构进行电磁书写时，在电磁屏结构靠近金属背板和边框结构的位置处也能对电磁信号进行正常识别，以保证整个电磁屏结构的正常使用。
下面对其进一步技术方案进行说明：
进一步地，所述永磁体结构设置为硅钢片或矽钢片。
进一步地，当所述电磁膜设于所述导光板上方时，所述永磁体结构设于所述金属背板与所述导光板之间；
当所述电磁膜设于所述导光板下方时，所述永磁体结构设于所述金属背板与所述电磁膜之间。
进一步地，所述金属背板包括平板状的背板主体，所述电磁膜包括与所述背板主体对应的膜主体，所述永磁体结构包括设于所述背板主体与所述膜主体之间的永磁体主体。
进一步地，所述金属背板还包括位于所述背板主体周侧的背板边缘部，所述边框结构设于所述背板边缘部上；
所述电磁膜还包括位于所述膜主体周侧、并与所述背板边缘部对应的膜边缘部，所述膜边缘部位于所述边框结构和所述背板边缘部之间；
所述永磁体结构还包括位于所述永磁体主体周侧的第一永磁体边缘部，所述第一永磁体边缘部位于所述膜边缘部和所述背板边缘部之间。
进一步地，所述永磁体结构还包括位于所述膜边缘部和所述边框结构之间的第二永磁体边缘部，所述第一永磁体边缘部和第二永磁体边缘部分别包设于所述膜边缘部两侧。
进一步地，所述永磁体主体与所述永磁体辅体相互独立设置；
或者，所述永磁体主体延伸绕过所述膜边缘部端部与所述永磁体辅体相互连接。
进一步地，所述电磁屏结构还包括设于所述边框结构中的显示屏体，所述显示屏体与所述电磁膜对应。
此外，本发明还提出一种侧入式背光显示模组，包括如上所述的电磁触控结构。
此外，本发明还提出一种显示器，包括如上所述的侧入式背光显示模组。
本发明具有如下有益效果：通过在电磁触控结构的金属背板上增设永磁体结构(如矽(硅)钢片)，加强靠近金属背板的电磁天线模组的线圈的磁通量，以此得到改善此应用场景中整个电磁屏结构的电磁书写的信号响应，从而改善整机书写异常的问题。
附图说明
图1为本发明所述电磁触控结构的剖视结构示意框图；
图2为本发明一些实施例中所述电磁触控结构的横截面结构示意框图；
图3是图2的局部A的局部放大示意图。
附图标记说明：
100-金属背板，110-背板主体，120-背板边缘部，200-边框结构，210-边框主体，220-定位槽，300-导光板，400-电磁膜，410-膜主体，420-膜边缘部，500-永磁体结构，510-永磁体主体，520-第一永磁体边缘部，600-显示屏体。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中各图中相同的标号表示相同的部分。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不理解为对本发明的限制。
如图1至图2所示，本发明实施例提出一种电磁触控结构，包括框体结构，以及设于该框体结构上的电磁屏结构。该框体结构可为电磁屏结构提供支撑和固定，而电磁屏结构可以实现电磁书写和控制功能。
具体地，上述框体结构包括平板状的金属背板100，以及环设于该金属背板100周侧边缘处的边框结构200。上述的电磁屏结构可叠设于该金属背板100上，并且该边框结构200可从该电磁屏结构的四周进行定位和固定，从而将该电磁屏结构固定在框体结构上。进一步地，如图3所示，上述金属背板100可包括平板状的背板主体110，以及设于该背板主体周侧的背板边缘部120，上述边框结构200设于该背板边缘部120上。而且，上述电磁屏结构的四周边缘设于该背板边缘部120上，而该电磁屏结构的中间部分贴设于该背板主体110上。此外，上述边框结构200可包括有设于该背板边缘部120上的边框主体210，以及开设于该边框主体210上的定位槽220，且该定位槽220位于边框主体210和背板边缘部120之间，而上述的电磁屏结构的四周边缘则位于该定位槽220中，从而实现了对该电磁屏结构的定位和固定。
而且，上述电磁屏结构可包括叠设于上述金属背板100和边框结构200之间的导光板300和电磁膜400，该电磁膜400可设于导光板300上方(指导光板背离金属背板100的一侧)或下方(指导光板面对金属背板100的一侧)。而且，该导光板300和电磁膜400的四周边缘均设置于上述的金属背板100和边框结构200之间的定位槽220中，以实现对导光板300和电磁膜400的固定。
此外，上述电磁屏结构还可包括设于金属背板100上的永磁体结构，该永磁体结构位于边框结构200内侧(指边框结构面向金属背板的一侧)，且该永磁体结构位于电磁膜400和金属背板100之间。传统技术中，由于电磁屏结构设于金属背板100和边框结构200之间，使得与电磁膜400对应的电磁天线模组与金属背板100之间的距离较近，从而使得金属背板100和边框结构200对位于二者之间的电磁屏结构形成了电磁屏蔽，导致电磁天线模组在靠近金属背板100的位置处的电磁线圈的磁通量减少。而本申请通过在电磁屏结构与金属背板100之间设置永磁体结构500，就可以加强靠近金属背板100的电磁天线模组的线圈的磁通量，从而减弱或消除金属背板100(和边框结构200)对电磁膜400及电磁屏结构的电磁信号屏蔽，从而使得在利用电磁屏结构进行电磁书写时，在电磁屏结构靠近金属背板和边框结构的位置处也能对电磁信号进行正常识别，可以保证整个电磁屏结构的正常使用。
而且，当上述电磁膜400设于导光板300上方(指导光板背离金属背板100的一侧)时，上述永磁体结构500就设于上述金属背板100与导光板300之间；当上述电磁膜400设于导光板300下方(指导光板面对金属背板100的一侧)时，上述永磁体结构500就设于上述金属背板100与电磁膜400之间。从而可使得该永磁体结构500靠近金属背板100设置，不对导光板300及其他光学组件形成阻挡，不仅可以增强靠近金属背板100的电磁天线模组的线圈的磁通量以保证电磁屏结构的正常使用，还不会对导光板300及光学组件造成干扰，可保证电磁屏结构的光学功能正常。
进一步地，上述电磁膜400包括叠设于上述背板主体110上的膜主体410，而上述永磁体结构500包括设于背板主体110与膜主体410之间的永磁体主体510。即可通过该永磁体结构500的永磁体主体510，对位于背板主体110处的电磁膜400的膜主体410及对应的电磁天线模组的电磁性能进行强化，以加强膜主体410处的电磁天线模组的线圈的磁通量，可减弱或消除金属背板100和边框结构200对膜主体410的电磁信号屏蔽，使得在使用过程中膜主体410能对电磁信号进行正常识别，以保证整个电磁触摸结构在位于背板主体110处的110膜主体410的正常工作。
而且，上述电磁膜400还包括位于膜主体410周侧、并与背板边缘部120对应的膜边缘部420，该膜边缘部420位于上述边框结构200的边框主体210和背板边缘部120之间，即位于上述背板边缘部120与边框主体210之间的定位槽220中。即通过位于背板边缘部120和边框主体210之间的膜边缘部420，对电磁膜400的四周边缘进行定位和固定。而且，上述永磁体结构500还包括连接于永磁体主体510周侧的第一永磁体边缘部520，该第一永磁体边缘部520位于上述的膜边缘部420和背板边缘部120之间，使得该第一永磁体边缘部520还伸入到定位槽220中。即可通过该第一永磁体边缘部520对位于背板边缘部120与边框主体之间的电磁膜400的膜边缘部420及对应的电磁天线模组的电磁性能进行强化，可以加强与膜边缘部420处对应的电磁天线模组的部分线圈的磁通量，可减弱或消除金属背板100和边框结构200对膜边缘部420的电磁信号屏蔽，从而使得在电磁膜的膜边缘部420位置处也能对电磁信号进行正常识 别，以使得整个电磁膜400都能够对电磁信号进行正常识别，以保证整个电磁触摸结构的正常工作。而且，上述第一永磁体边缘部520还会部分延伸到膜主体410处，保证了膜主体410和膜边缘部420连接过渡处的电磁性能。此外，这种情况下，上述电磁膜400可设于导光板300下方，即将电磁膜400设于面对金属背板100的一侧。
而且，上述永磁体结构500还可包括位于上述膜边缘部420和边框结构200的边框主体210之间的第二永磁体边缘部，该第二永磁体边缘部也位于边框结构200的定位槽220中，而且上述第一永磁体边缘部520和第二永磁体边缘部分别包设于膜边缘部420两侧。通过在上述膜边缘部420的两侧均设置永磁体结构，可以从两侧对膜边缘部420及对应的电磁天线模组进行电磁性能强化，可使得膜边缘部420能更好地对电磁信号进行识别。而且，上述第一永磁体边缘部和第二永磁体边缘部均会部分延伸到膜主体410处，保证了膜主体410和膜边缘部420连接过渡处的电磁性能。此外，在这种情况下，上述电磁膜400可设于导光板300下方或上方。而且，上述第一永磁体边缘部520与第二永磁体边缘部可相互独立设置，即二者分别单独设置在膜边缘部420的两侧；或者，上述第一永磁体边缘部520可延伸绕过膜边缘部420端部与第二永磁体边缘部相互连接，同时第一永磁体边缘部与第二永磁体边缘部不会隔断电磁膜、导光板的端部，保证具有良好的透光性。
此外，上述永磁体结构500可设置为硅钢片或矽钢片，这种硅钢片或矽钢片具有优良的电磁性能，能够很好的强化电磁膜400边缘位置处的电磁性能。而且，上述永磁体结构500可设为整体结构，即根据金属背板100和边框结构300的周侧边缘形状设为整体平板状结构；此外，也可将上述永磁体结500设为分体式结构，即将该永磁体结构500设为多个硅钢片或矽钢片，分别设于金属背板100上、以及设于金属背板100和边框结构300的周侧边缘。
此外，上述电磁屏结构还可包括设于边框结构200中的显示屏体600，该显示屏体600与电磁膜400对应。通过设置该显示屏体600可使得电磁屏结构不仅能够实现电磁触控功能，还能实现显示功能。此外，在本实施例中，上述边框结构200可采用金属材质或者塑料材质制作，也可以根据需要采用其他材质 制作。
此外，本发明还提出一种侧入式背光显示模组，包括如上所述的电磁触控结构。此外，本发明还提出一种显示器，包括如上所述的侧入式背光显示模组。这样，通过在电磁触控结构的金属背板上增设永磁体结构(如矽(硅)钢片)，加强靠近金属背板的电磁天线模组的线圈的磁通量，以此得到改善此应用场景中整个电磁屏结构的电磁书写的信号响应，从而改善整机书写异常的问题。
此外，还需要理解的是，在本实施例中，术语“下”、“上”、“前”、“后”、“左”、“右”、“内”、“外”、“顶”、“底”、“一侧”、“另一侧”、“一端”、“另一端”、等所指示的位置关系为基于附图所示的位置关系；“第一”、“第二”等术语，是为了区分不同的结构部件。这些术语仅为了便于描述本发明和简化描述，不能理解为对本发明的限制。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对所述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种电磁触控结构，其特征在于，包括框体结构，以及设于所述框体结构上的电磁屏结构；
    所述框体结构包括平板状的金属背板，以及环设于所述金属背板周侧边缘处的边框结构；
    所述电磁屏结构包括叠设于所述金属背板和所述边框结构之间的导光板和电磁膜，以及设于所述金属背板上的永磁体结构，所述永磁体结构位于所述边框结构内侧，且所述永磁体结构位于所述电磁膜和所述金属背板之间，所述电磁膜设于所述导光板上方或下方。
  2. 根据权利要求1所述的电磁触控结构，其特征在于，所述永磁体结构设置为硅钢片或矽钢片。
  3. 根据权利要求1所述的电磁触控结构，其特征在于，当所述电磁膜设于所述导光板上方时，所述永磁体结构设于所述金属背板与所述导光板之间；
    当所述电磁膜设于所述导光板下方时，所述永磁体结构设于所述金属背板与所述电磁膜之间。
  4. 根据权利要求1-3任意一项所述的电磁触控结构，其特征在于，所述金属背板包括平板状的背板主体，所述电磁膜包括与所述背板主体对应的膜主体，所述永磁体结构包括设于所述背板主体与所述膜主体之间的永磁体主体。
  5. 根据权利要求4所述的电磁触控结构，其特征在于，所述金属背板还包括位于所述背板主体周侧的背板边缘部，所述边框结构设于所述背板边缘部上；
    所述电磁膜还包括位于所述膜主体周侧、并与所述背板边缘部对应的膜边缘部，所述膜边缘部位于所述边框结构和所述背板边缘部之间；
    所述永磁体结构还包括位于所述永磁体主体周侧的第一永磁体边缘部，所述第一永磁体边缘部位于所述膜边缘部和所述背板边缘部之间。
  6. 根据权利要求5所述的电磁触控结构，其特征在于，所述永磁体结构还包括位于所述膜边缘部和所述边框结构之间的第二永磁体边缘部，所述第一永磁体边缘部和第二永磁体边缘部分别包设于所述膜边缘部两侧。
  7. 根据权利要求6所述的电磁触控结构，其特征在于，所述永磁体主体与所述永磁体辅体相互独立设置；
    或者，所述永磁体主体延伸绕过所述膜边缘部端部与所述永磁体辅体相互连接。
  8. 根据权利要求1-3任意一项所述的电磁触控结构，其特征在于，所述电磁屏结构还包括设于所述边框结构中的显示屏体，所述显示屏体与所述电磁膜对应。
  9. 一种侧入式背光显示模组，其特征在于，包括如权利要求1-8任意一项所述的电磁触控结构。
  10. 一种显示器，其特征在于，包括如权利要求9所述的侧入式背光显示模组。
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