WO2018196282A1 - 一种触摸屏及显示器 - Google Patents

一种触摸屏及显示器 Download PDF

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Publication number
WO2018196282A1
WO2018196282A1 PCT/CN2017/104863 CN2017104863W WO2018196282A1 WO 2018196282 A1 WO2018196282 A1 WO 2018196282A1 CN 2017104863 W CN2017104863 W CN 2017104863W WO 2018196282 A1 WO2018196282 A1 WO 2018196282A1
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WO
WIPO (PCT)
Prior art keywords
touch screen
housing
writing panel
touch
receiving cavity
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Application number
PCT/CN2017/104863
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English (en)
French (fr)
Inventor
廖金海
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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Application filed by 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 filed Critical 广州视源电子科技股份有限公司
Publication of WO2018196282A1 publication Critical patent/WO2018196282A1/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
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means

Definitions

  • the present application relates to the field of touch screens, and in particular, to a touch screen and a display.
  • Infrared Touch Screen Technology consists of infrared emitting and receiving sensing elements and writing panels assembled in the outer frame of the touch screen.
  • the working principle is that by forming an infrared detecting net on the surface of the writing panel, any touch object can The infrared rays on the blocking contacts are detected by the infrared detecting net to further implement the touch screen operation.
  • the infrared detecting net needs to be in close contact with the writing panel, and the infrared ray is formed by the infrared rays of the screen in the X and Y directions, and the infrared light is blocked by the object to detect and locate the user's touch by continuously scanning.
  • an infrared touch screen is implemented by mounting a touch circuit board on an ordinary display, and a circuit board with an infrared emitting tube and an infrared receiving tube is designed in the touch circuit board, thereby forming a horizontal and vertical crossover on the four sides of the writing panel. Infrared matrix.
  • the infrared touch screen further includes a filter strip installed in front of the infrared receiving tube.
  • a filter strip installed in front of the infrared receiving tube.
  • the finger or other object will block the horizontal and vertical infrared rays passing through the position.
  • the infrared touch screen scans and finds that there is an infrared ray blocked, it immediately switches to another coordinate and scans again. If another axis is found, there is also an infrared ray. Blocked, the infrared touch screen reports the position of the two infrared detector tubes that are blocked to the host, and calculates the position of the touch point on the writing panel.
  • the present application provides an improved touch screen and display that facilitates writing.
  • a touch screen includes a housing, a filter strip, a writing panel, and a touch circuit board.
  • the touch circuit board includes a body and an IR module disposed on the body, and the housing is configured to receive the a receiving cavity of the touch circuit board, the IR module being in close proximity or abutting against an inner surface of the writing panel.
  • the proximity or abutment of the IR module on the writing panel can effectively reduce the distance from the central axis of the IR module to the writing panel, that is, reduce the distance from the infrared matrix formed by the IR module to the writing panel, and improve the accuracy of the touch screen recognition. And sensitivity to enhance the user experience.
  • the housing is provided with an assembly portion;
  • the filter strip includes a mounting end assembled in the assembly portion and a free end through which infrared rays pass, wherein the end of the free end abuts against the writing panel.
  • the filter strip In addition to the predetermined position of the assembly portion, the filter strip also achieves final fixation by forming interference with the writing panel. Therefore, it is ensured that the filter strip does not shift during the use of the touch screen, and at the same time, due to the support of the writing panel, the assembly on the housing only needs to meet the predetermined position requirement of the filter strip, that is, the filter strip is directly Fixing the positioning on the writing panel can improve the assembly stability of the filter strip while reducing the difficulty of manufacturing the housing.
  • the housing is provided with a mounting portion, and the receiving cavity is provided with an opening; the writing panel is disposed at the opening and abuts the mounting portion.
  • the receiving cavity is partitioned into an upper receiving cavity and a lower receiving cavity by the body, the opening is disposed on a side of the lower receiving cavity facing the writing panel; the IR module is located in the lower receiving cavity Inside.
  • the IR module includes an infrared lamp bead that is close to or abuts against an inner surface of the writing panel.
  • the housing structure is simplified and the distance between the IR module of the touch control circuit board housed in the housing and the writing panel is effectively reduced, thereby improving the writing experience.
  • the receiving cavity includes a first receiving portion and a second receiving portion respectively receiving the two sides of the body.
  • the first receiving portion and the second receiving portion are fixedly coupled to the main body from the two ends, so as to achieve lateral limitation after the touch circuit board and the housing are assembled, and the touch is prevented from being affected by the displacement of the touch circuit board. The touch accuracy of the board.
  • the second receiving portion is formed by an inner wall of the receiving cavity and a support portion extending from the filter strip into the receiving cavity.
  • the filter strip and the housing form a second receiving portion for facilitating assembly of the touch circuit board, ensuring stability of the touch circuit board after assembly, and improving product performance.
  • the assembly portion includes a first engaging portion and a second engaging portion that are connected to each other, and the first engaging portion and the The second latching portion extends in different directions to laterally and longitudinally limit the filter strip.
  • the assembling portion can pre-position the filter strip from the lateral direction and the longitudinal direction, thereby reducing the displacement of the filter strip caused by vibration or the like during use. .
  • the filter strip further includes an abutting surface that abuts the housing.
  • the abutment surface can effectively increase the contact area of the filter strip and the housing assembly, and at the same time, as the positioning of the carding portion, the stability of the IR module assembly is improved as a whole.
  • the touch screen further includes a fixture for positioning the writing panel to the housing.
  • the mounting portion and the fixing member together form an accommodation space for assembling the writing panel to the housing; and ensuring stability of the writing panel after being assembled to the housing while simplifying the housing structure.
  • the fixing member includes a first end supporting the writing panel and a second end extending from the first end and fixed to the housing.
  • a buffer layer is disposed between the IR module and the writing panel.
  • the buffer layer forms interference between the IR module and the writing panel to achieve final fixing of the touch circuit board, ensuring that the touch circuit board does not shift during transportation and use, and can effectively reduce Hard contact and friction between the IR module and the writing panel.
  • the present application also relates to a display comprising a housing and a touch screen according to any of the above, the touch screen being assembled within the housing.
  • the distance between the central axis of the IR module and the writing panel is effectively reduced, and the accuracy and sensitivity of the touch screen recognition are improved, and the accuracy is improved. user experience.
  • FIG. 1 is a cross-sectional view showing a touch screen assembly according to an exemplary embodiment of the present application
  • Figure 2 is a front elevational view of the filter strip of the present application
  • FIG. 3 is a cross-sectional view of the touch screen of FIG. 1 without a writing panel.
  • Assembly portion 101 first housing portion 102
  • FIG. 1 is a cross-sectional view showing a touch screen assembly according to an exemplary embodiment of the present application.
  • a touch screen (not labeled) includes a housing 10 , a filter strip 13 , a writing panel 14 , and a touch circuit board 12 .
  • the touch circuit board 12 includes a body 121 and an IR (Infrared Radiation) module 11 disposed on the body 121.
  • the housing 10 is provided with a receiving cavity 16 for receiving the touch circuit board 12 .
  • the receiving cavity 16 is provided with an opening 17 .
  • the writing panel 14 is disposed at the opening 17 and the IR module 11 abuts or abuts against an inner surface of the writing panel 14 at the opening 17.
  • the writing panel 14 when the writing panel 14 is mounted, it can be closer to the touch circuit board 12.
  • the IR module 11 of the touch panel 12 can be closer.
  • the IR module 11 includes an infrared bead that is placed close to or against an inner surface of the writing panel 14.
  • the present application separates the two ends of the filter strip 13 from the housing 10 by changing the manner in which the filter strip 13 is mounted, as compared with the prior art. Abutting the writing panel 14 not only simplifies the structure of the casing, but also enables the IR module 11 to be close to or abutted against the writing panel after the writing panel 14 is assembled with the filter strip 13 It reduces the writing distance between the two and improves the product performance. It is to be understood that this is only one specific embodiment of the present application, and that the IR module 11 is placed close to or against other structures of the writing panel 14 and is also included in the scope of protection of the present application.
  • FIG. 2 is a front view of a filter strip of the present application; and FIG. 3 is a cross-sectional view of the touch panel of FIG. 1 without a writing panel.
  • the housing 10 is provided with an assembly portion 101.
  • the filter strip 13 includes a mounting end 133 disposed in the assembly portion 101 and a free end 134 through which infrared rays pass, and the end of the free end 134 abuts against the writing panel 14.
  • the filter strip 13 realizes a predetermined position assembled with the housing 10 by the assembly portion 101, and is assembled with the writing panel 14 to form interference to achieve final fixation.
  • the interference between the writing panel 14 and the filter strip 13 to form an interference effectively prevents the filter strip 13 from being displaced during transportation and use of the touch screen.
  • the assembly portion 101 on the casing 10 since the assembly portion 101 on the casing 10 only needs to satisfy the predetermined position requirement of the filter strip 13 by the support of the writing panel 14, the production accuracy requirement of the assembly portion 101 is also lowered. Therefore, the mounting end 133 of the filter strip 13 is assembled with the housing 10 and the free end 134 is assembled with the writing panel 14 to improve the assembly stability of the filter strip 13 while reducing the production of the housing 10. Difficulty.
  • the assembly portion 101 includes a first latching portion 104 and a second latching portion 105 that are connected to each other.
  • the first latching portion 104 and the second latching portion 105 extend in different directions.
  • the first engaging portion 104 is formed to extend laterally on the assembly portion 101
  • the second engaging portion 105 is formed by extending the assembly portion 101 obliquely downward.
  • the first engaging portion 104 may also extend obliquely downward on the assembly portion 101, and the second engaging portion 105 correspondingly extends laterally on the assembly portion 101.
  • the purpose of extending the first engaging portion and the second engaging portion in different directions is to enable the housing 10 to be assembled after the filter strip 13 is assembled in the assembly portion 101 of the housing.
  • the filter strip is limited in the horizontal direction and the longitudinal direction to prevent the filter strip 13 from being displaced due to vibration or the like during use, thereby improving the stability of the touch screen.
  • the filter strip 13 further includes an abutment surface 135 that abuts the housing 10.
  • the abutting surface 135 can effectively increase the contact area of the filter strip 13 and the housing 10 to assemble, thereby improving the stability of the assembly of the IR module 11 as a whole.
  • the filter strip 13 is provided with a support portion 131 extending into the receiving cavity, and the support portion 131 is configured to prevent the body 121 from coming out of the receiving cavity 16 .
  • the receiving cavity 16 includes a first receiving portion 102 and a second receiving portion 132 that respectively receive the two sides of the body 121.
  • the first receiving portion 102 is disposed on the housing 10
  • the second receiving portion 132 is supported by the inner wall of the receiving cavity 16 and the filter strip 13 to the receiving portion 16 . form.
  • the second accommodating portion 132 associates the positional relationship between the housing 10, the filter strip 13 and the touch control circuit board 12, so that the touch circuit board 12 is assembled between the housing and the housing.
  • the reserved gap is significantly reduced, and the stability of the touch panel assembly is increased.
  • the first receiving portion and the second receiving portion are coupled to the fixed body 121 from both ends, thereby implementing the touch circuit board 12 and the shell.
  • the lateral limit of the body 10 after assembly avoids the touch precision of the touch screen due to the displacement of the touch circuit board.
  • the stable positional relationship can reduce the distance change of the central axis 111 of the IR module 11 to the writing panel 14 during use, improve the accuracy and sensitivity of the touch screen recognition, and improve the user experience.
  • the filter strip and the housing form a second receiving portion for facilitating assembly of the touch circuit board, ensuring stability of the touch circuit board after assembly, and improving product performance.
  • the receiving cavity 16 is partitioned into an upper receiving cavity 161 and a lower receiving cavity 162 .
  • the opening 17 is disposed on a side of the lower receiving cavity 162 toward the writing panel 14.
  • the lower receiving cavity 162 is formed by the body 121 , the free end 134 of the filter strip, the writing panel 14 and the housing 10 , and the IR module 11 is disposed in the lower receiving cavity 162 .
  • the IR module 11 mounted in the lower receiving cavity 162 is directly adjacent to or abuts against the writing panel 14, which improves the accuracy and sensitivity of the touch screen.
  • the lower edge of the first receiving portion 102 is flush with the upper edge of the support portion 131. Because the lower edges of the first receiving portion 102 and the second receiving portion 132 are flush, the IR module 11 can be provided with a stable working plane.
  • the housing 10 is provided with a mounting portion 103 and assembled to the housing.
  • the fixing member 15, the mounting portion 103 and the fixing member 15 are enclosed to form a writing panel receiving space 154, and the writing panel 14 is assembled in the receiving space 154.
  • the receiving cavity 16 is provided with an opening 17; the writing panel 14 is disposed at the opening 17 and abuts against the mounting portion 103.
  • the mounting portion 103 extends from the housing 10 toward the opening 17, and the mounting portion 103 may be provided in various forms.
  • the mounting portion 103 is a mounting groove recessed into the housing 10, or a fixed arm or the like that is inserted into the writing panel 14.
  • the mounting portion 103 is a limiting arm fixed to the housing 10 and above the writing panel 14, the limiting arm and the fixing member 15 will be the writing panel 14 is positioned on the housing 10.
  • the mounting portion 103 and the fixing member 15 together form an accommodation space for assembling the writing panel 14 to the housing 10, as compared with the prior art in which the writing panel 14 is directly fixed to the housing 10. 154, ensuring stability of the writing panel after assembly of the housing while simplifying the housing structure.
  • only the fixing member 15 located under the writing panel 14 can be selected.
  • the upper limiting arm can be eliminated and the fixing of the writing panel 14 is not affected.
  • the effect, and the canceled upper limit arm can make more space for the arrangement of the IR module 11 in the lower receiving cavity 162; thereby bringing the infrared lamp bead of the IR module 11 close to or against the writing panel.
  • the distance between the central axis 111 of the IR module 11 and the writing panel 14 is effectively reduced, that is, the distance between the infrared matrix formed by the IR module 11 and the writing panel 14 is reduced, the accuracy and sensitivity of the touch screen recognition are improved, and the user is improved.
  • the fixture 15 includes a first end 151 that supports the writing panel 14 and a second end 152 that extends from the first end 151 and is secured to the housing 10. And the second end 152 of the fixing member 15 is disposed along a side of the housing 10 and connected to at least one side of the housing 10.
  • An arrangement of the fixing member 15 is exemplarily shown in Fig. 1, and the first end 151 of the fixing member 15 supports the writing panel 14.
  • the second end 152 of the fixture 15 is "7" shaped and secured to both sides of the housing 10 to provide a secure mounting effect for the writing panel 14. It is a matter of course that in other embodiments of the present application, the fixing member 15 can also have a fixed structure of other shapes.
  • a buffer layer 112 is disposed between the IR module 11 and the writing panel 14.
  • the buffer layer forms interference between the IR module and the writing panel to achieve final fixing of the touch circuit board, ensuring that the touch circuit board does not shift during transportation and use, and can effectively reduce Hard contact and friction between the IR module and the writing panel.
  • the buffer layer 112 may be made of a material such as thin foam commonly used in the industry, or may be other buffer materials.
  • the buffer layer 112 should be kept as thin as possible while maintaining the buffering effect, and avoid increasing the central axis 111 of the IR module 11 to the writing surface. The distance of the board 14.
  • the present application also relates to a display comprising a housing and a display screen assembled in the housing, the display screen being the touch screen of any of the above embodiments.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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Abstract

一种触摸屏及显示器，所述显示器包括外壳及触摸屏，所述触摸屏组装于所述外壳内。所述触摸屏包括壳体（10）、滤光条（13）、书写面板（14）以及触控电路板（12），所述触控电路板（12）包括本体（121）和设置在本体（121）上的IR模组（11），所述壳体（10）上设有用于容置所述触控电路板（12）的收容腔（16），所述IR模组（11）贴近或抵靠在所述书写面板（14）的内表面，有效降低IR模组（11）的中轴线（111）到书写面板（14）的距离，即降低了IR模组（11）形成的红外矩阵到书写面板（14）的距离，提高了触摸屏识别的精度和灵敏度，提升了用户体验。

Description

一种触摸屏及显示器 技术领域
本申请涉及触摸屏领域，尤其涉及一种触摸屏及显示器。
背景技术
红外线技术触摸屏(Infrared Touch Screen Technology)由组装在触摸屏外框内的红外线发射与接收感测元件及书写面板构成，其工作原理是通过在所述书写面板表面上形成红外线探测网，任何触摸物体能够阻挡触点上的红外线从而被红外线探测网检测到，进一步实现触摸屏操作。
因此，红外线探测网需要紧贴书写面板上，通过幕布在X、Y方向上的红外线形成红外线矩阵，并且通过不停的扫描是否有红外线被物体阻挡检测并定位用户的触摸。相关技术中，红外线触摸屏是在普通显示器的上安装一个触控电路板实现，触控电路板里设计有密布红外发射管和红外接收管的电路板，从而在书写面板四边一一对应形成横竖交叉的红外线矩阵。为了减少可见光对红外接收管的干扰，红外线触摸屏还包括安装在红外接收管前的滤光条。当有触摸时，手指或其它物就会挡住经过该位置的横竖红外线，红外线触摸屏扫描时发现并确信有一条红外线受阻后，立刻换到另一坐标再扫描，如果再发现另外一轴也有一条红外线受阻，红外线触摸屏就将两个发现阻隔的红外对管位置报告给主机，经过计算判断出触摸点在书写面板的位置。
但是相关技术中滤光条大多直接通过与作为壳体的铝型材扣合进行固定，因此对铝型材的尺寸精度要求较高，如果尺寸偏差过大会存在滤光条组装不进去或者滤光条从铝型材掉落问题，也容易出现滤光条松动带来的机震。
发明内容
本申请提供一种改进的、利于书写的触摸屏及显示器。
具体地，本申请之目的是通过如下技术方案之一实现的：
一种触摸屏，包括壳体、滤光条、书写面板以及触控电路板，所述触控电路板包括本体和设置在本体上的IR模组，所述壳体上设有用于容置所述触控电路板的收容腔，所述IR模组贴近或抵靠在所述书写面板的内表面。
IR模组贴近或抵靠于所述书写面板上能够有效降低IR模组的中轴线到书写面板的距离，即降低了IR模组形成的红外矩阵到书写面板的距离，提高了触摸屏识别的精度和灵敏度，提升了用户体验。
进一步的，所述壳体设有组装部；所述滤光条包括组装于所述组装部内安装端及供红外线穿过的自由端，其中所述自由端的末端抵靠于所述书写面板。
滤光条除了组装部的预定位，还通过与所述书写面板抵靠形成干涉，实现最终固定。从而确保滤光条在触摸屏的使用过程中不会发生位移，同时由于所述书写面板的承托，壳体上的组装部只需满足滤光条的预定位需求即可，即滤光条直接抵靠于书写面板上进行组装定位能够在提高滤光条组装稳定性的同时还能降低壳体的生产难度。
进一步地，所述壳体设有安装部，所述收容腔设有开口；所述书写面板设置于所述开口处并与所述安装部抵接。
进一步地，所述收容腔被所述本体分隔成上收容腔和下收容腔，所述开口设置在所述下收容腔朝向所述书写面板一侧；所述IR模组位于所述下收容腔内。
进一步地，所述IR模组包括红外灯珠，所述红外灯珠贴近或抵靠在所述书写面板的内表面。
通过在壳体收容腔设置开口简化了壳体结构并使收容于所述壳体内的触控电路板的IR模组与所述书写面板的距离得到有效降低，提升了书写体验。
进一步地，所述收容腔包括分别收容所述本体两侧的第一收容部及第二收容部。通过第一收容部与第二收容部从两端配合固定本体，从而实现对所述触控电路板和所述壳体组装后的横向限位，避免因所述触控电路板位移影响触控电路板的触摸精度。
进一步地，所述第二收容部由所述收容腔的内壁及所述滤光条向所述收容腔内延伸的支撑部形成。
利用所述滤光条与壳体共同形成便于所述触控电路板组装的第二收容部，确保所述触控电路板组装后的稳定性，改善了产品性能。
进一步地，所述组装部包括相互连接的第一卡接部及第二卡接部，所述第一卡接部与所 述第二卡接部沿不同方向延伸，以对所述滤光条进行横向及纵向限位。
通过第一卡接部与所述第二卡接部的配合，组装部能够从横向及纵向上对所述滤光条进行预定位，减少了使用过程中因为震动等原因造成的滤光条位移。
进一步地，所述滤光条还包括与所述壳体相抵的抵靠面。抵靠面能够有效增加滤光条和壳体组装的接触面积，同时作为所述卡接部的定位补充，从整体上提高了IR模组组装的稳定性。
进一步地，所述触摸屏还包括用于将所述书写面板定位于所述壳体的固定件。
安装部和固定件共同形成使所述书写面板组装于所述壳体的容纳空间；在简化壳体结构的同时确保所述书写面板组装于所述壳体后的稳定性。
进一步地，所述固定件包括支撑所述书写面板的第一端及自所述第一端延伸并固定于所述壳体上的第二端。
进一步地，所述IR模组和所述书写面板之间设有缓冲层。
所述缓冲层使所述IR模组和所述书写面板形成干涉，实现对所述触控电路板的的最终固定，确保触控电路板在运输及使用过程中不发生位移；同时能够有效减少IR模组和书写面板之间的硬接触和摩擦。
具体地，本申请之目的是通过如下技术方案之二实现的：
本申请还涉及一种显示器，包括外壳及如上述任一项所述的的触摸屏，所述触摸屏组装于所述外壳内。
本申请可以包括以下有益效果：
通过将设置在壳体内触控电路板的IR模组贴近或抵靠于书写面板的内表面，有效降低IR模组的中轴线到书写面板的距离，提高了触摸屏识别的精度和灵敏度，提升了用户体验。
附图说明
图1是本申请一示例性实施例示出的一种触摸屏组装剖视图；
图2是本申请滤光条的主视图；
图3是图1中的触摸屏未安装书写面板的剖视图。
附图标记说明：
壳体 10
组装部 101      第一收容部 102
安装部 103      第一卡接部 104
第二卡接部 105
IR模组 11
中轴线 111      缓冲层 112
触控电路板 12
本体 121
滤光条 13
支撑部 131      第二收容部 132
安装端 133      自由端 134
抵靠面 135
书写面板 14
固定件 15
第一端 151      第二端 152
容纳空间 154
收容腔 16
上收容腔 161    下收容腔 162
开口 17
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是与如所附权利要求书 中所详述的、本申请的一些方面相一致的装置和方法的例子。
在本申请使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请。在本申请和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
图1是本申请一示例性实施例示出的一种触摸屏组装剖视图。如图1所示，一种触摸屏(未标号)，包括壳体10、滤光条13、书写面板14以及触控电路板12。所述触控电路板12包括本体121和设置在本体121上的IR(Infrared Radiation，红外线)模组11。所述壳体10上设有用于容置所述触控电路板12的收容腔16。其中所述收容腔16设有开口17。所述书写面板14设置于所述开口17处，且所述IR模组11贴近或抵靠在所述书写面板14位于开口17处的内表面。
通过这样设置，当所述书写面板14安装后，可以更加靠近所述触控电路板12。具体来讲，可以更靠近所述触控电路板12的IR模组11。所述IR模组11包括红外灯珠，所述红外灯珠贴近或抵靠在所述书写面板14的内表面。
进一步地，相较于相关技术中通过壳体固定滤光条两端的方案而言，本申请通过改变所述滤光条13的安装方式，将所述滤光条13两端分别与壳体10和书写面板14抵接，不仅使壳体结构得到简化，而且还使所述书写面板14与所述滤光条13组装后，所述IR模组11与所述书写面板贴近或抵靠，有效减少了二者之间的书写距离，提升了产品使用性能。诚然，这只是本申请的一个具体实施例，使得所述IR模组11贴近或抵靠在所述书写面板14的其他结构，也应包含在本申请的保护范围内。
图2是本申请滤光条的主视图；图3是图1中的触摸屏未安装书写面板的剖视图。
如图1～3所示，在一实施例中，所述壳体10设有组装部101。所述滤光条13包括设置于所述组装部101内的安装端133及供红外线穿过的自由端134，所述自由端134的末端抵靠于所述书写面板14。滤光条13通过组装部101实现与所述壳体10组装的预定位，与书写面板14抵靠组装形成干涉实现最终固定。所述书写面板14与所述滤光条13组装后形成干涉有效避免了所述滤光条13在触摸屏的运输及使用过程中发生位移。并且因为书写面板14的承托，壳体10上的组装部101只需满足滤光条13的预定位要求即可，因此组装部101的生产精度要求也随之降低。因此，所述滤光条13的安装端133与壳体10组装而自由端134与所述书写面板14组装的方式，在提高滤光条13组装稳定性的同时还能降低壳体10的生产难度。
在一实施例中，所述组装部101包括相互连接的第一卡接部104及第二卡接部105，所述第一卡接部104与所述第二卡接部105沿不同方向延伸，以对所述滤光条13进行横向及纵向限位。具体地，所述第一卡接部104为组装部101上横向延伸而成的，第二卡接部105为组装部101上斜向下延伸而成的。在另一实施例中，所述第一卡接部104也可以在组装部101上斜向下延伸而成，第二卡接部105相应为组装部101上横向延伸而成。所述第一卡接部与所述第二卡接部沿不同方向延伸的目的是为了实现所述滤光条13组装于所述壳体的组装部101内后，所述壳体10能在横向及纵向对所述滤光条进行限位，防止在使用过程中因为震动等原因造成的滤光条13位移，提升触摸屏的稳定性。
在一实施例中，所述滤光条13还包括与所述壳体10相抵的抵靠面135。所述抵靠面135能够有效增加滤光条13和壳体10组装的接触面积，从整体上提高IR模组11组装的稳定性。
在一实施例中，所述滤光条13设有向所述收容腔内延伸的支撑部131，所述支撑部131用于防止所述本体121脱出所述收容腔16。在本实施例给出的示例性方案中，所述收容腔16包括分别收容本体121两侧的第一收容部102及第二收容部132。所述第一收容部102设置于所述壳体10上，所述第二收容部132由所述收容腔16的内壁及所述滤光条13向所述收容腔16内延伸的支撑部131形成。所述第二收容部132将壳体10、滤光条13以及触控电路板12三者的位置关系联系在一起，使所述触控电路板12组装于壳体时与壳体之间的预留间隙明显减少，增加了触控电路板组装的稳定性；同时通过第一收容部与第二收容部从两端配合固定本体121，从而实现对所述触控电路板12和所述壳体10组装后的横向限位，避免因触控电路板位移影响触摸屏的触摸精度。稳定的位置关系能够减少在使用过程中IR模组11的中轴线111到书写面板14的距离变化，提高了触摸屏识别的精度和灵敏度，提升了用户体验。利用所述滤光条与壳体共同形成便于所述触控电路板组装的第二收容部，确保所述触控电路板组装后的稳定性，改善了产品性能。
在一实施例中，所述本体121安装于所述收容腔16后，将所述收容腔16分隔为上收容腔161和下收容腔162。所述开口17设置在所述下收容腔162朝向所述书写面板14一侧。
所述下收容腔162由本体121、滤光条的自由端134、书写面板14及壳体10合围形成，所述IR模组11设置于所述下收容腔162内。下收容腔162内安装的IR模组11直接贴近或抵靠于书写面板14上，提高了触摸屏的精度和灵敏度。为了提高本体的121的定位精度，在本实施例给出的示例性方案中所述第一收容部102的下沿与所述支撑部131的上沿齐平。因为第一收容部102和第二收容部132的下沿齐平能够为IR模组11提供稳定的工作平面。
在一实施例中，如图1和图3所示，所述壳体10上设置有安装部103及组装于所述壳体 的固定件15，所述安装部103和固定件15合围形成书写面板容纳空间154，所述书写面板14组装于所述容纳空间154内。所述收容腔16设有开口17；所述书写面板14设置于所述开口17处并与所述安装部103抵接。
具体地，所述安装部103为从壳体10向所述开口17延伸，诚然，所述安装部103可以设置为多种形式。例如，在本申请另一实施例中，所述安装部103为凹陷进入壳体10的安装槽，或者插接进入书写面板14的固定臂等。在本实施例给出的示例性方案中，安装部103为固定在壳体10上并且抵在书写面板14上方的限位臂，所述限位臂与所述固定件15将所述书写面板14定位于所述壳体10。
相较于相关技术中书写面板14直接固定于壳体10上的方案而言，所述安装部103和所述固定件15共同形成使所述书写面板14组装于所述壳体10的容纳空间154，在简化壳体结构的同时确保所述书写面板组装于所述壳体后的稳定性。
相应在其他实施例中，也可以只选用位于书写面板14下方的固定件15，通过增大固定件15和书写面板14的接触面积从而取消上方的限位臂也不会影响书写面板14的固定效果，并且取消的上方的限位臂能够在下收容腔162中让出更多供IR模组11布置的空间；从而使所述IR模组11的红外灯珠贴近或抵靠于所述书写面板14上，有效降低IR模组11的中轴线111到书写面板14的距离，即降低了IR模组11形成的红外矩阵到书写面板14的距离，提高了触摸屏识别的精度和灵敏度，提升了用户体验。
在一实施例中，所述固定件15包括支撑所述书写面板14的第一端151以及自所述第一端151延伸并固定于所述壳体10上的第二端152。并且所述固定件15的第二端152沿壳体10的侧面设置且与所述壳体10的至少一个侧面连接。如图1示例性的给出了一种固定件15的设置方式，固定件15的第一端151支撑书写面板14。固定件15的第二端152为“7”字形并且与壳体10的两个侧面固定，为书写面板14提供稳固的安装效果。诚然，在本申请其他实施例中，所述固定件15还可以其他形状的固定结构。
在一实施例中，为了减少IR模组11和书写面板14之间的硬接触和摩擦，所述IR模组11和所述书写面板14之间设有缓冲层112。所述缓冲层使所述IR模组和所述书写面板形成干涉，实现对所述触控电路板的的最终固定，确保触控电路板在运输及使用过程中不发生位移；同时能够有效减少IR模组和书写面板之间的硬接触和摩擦。
所述缓冲层112可以选用工业中常用的薄泡棉等材质，也可以是其他缓冲材料。缓冲层112在起到缓冲效果的同时应该保持尽可能薄，避免增加IR模组11的中轴线111到书写面 板14的距离。
本申请还涉及一种显示器，包括外壳及组装于所述外壳内的显示屏，所述显示屏为上述实施例任一项所述的触摸屏。
上述各实施例在不存在冲突的情况下，可以互为补充。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本申请保护的范围之内。

Claims (13)

  1. 一种触摸屏，包括壳体、滤光条、书写面板以及触控电路板，所述触控电路板包括本体和设置在本体上的IR模组，其特征在于，所述壳体上设有用于容置所述触控电路板的收容腔，所述IR模组贴近或抵靠在所述书写面板的内表面。
  2. 如权利要求1所述的触摸屏，其特征在于，所述壳体设有组装部；所述滤光条包括组装于所述组装部内安装端及供红外线穿过的自由端，其中所述自由端的末端抵靠于所述书写面板。
  3. 如权利要求1所述的触摸屏，其特征在于，所述壳体设有安装部，所述收容腔设有开口；所述书写面板设置于所述开口处并与所述安装部抵接。
  4. 如权利要求3所述的触摸屏，其特征在于，所述收容腔被所述本体分隔成上收容腔和下收容腔，所述开口设置在所述下收容腔朝向所述书写面板一侧；所述IR模组位于所述下收容腔内。
  5. 如权利要求4所述的触摸屏，其特征在于，所述IR模组包括红外灯珠，所述红外灯珠贴近或抵靠在所述书写面板的内表面。
  6. 如权利要求1所述的触摸屏，其特征在于，所述收容腔包括分别收容所述本体两侧的第一收容部及第二收容部。
  7. 如权利要求6所述的触摸屏，其特征在于，所述第二收容部由所述收容腔的内壁及所述滤光条向所述收容腔内延伸的支撑部形成。
  8. 如权利要求2所述的触摸屏，其特征在于，所述组装部包括相互连接的第一卡接部及第二卡接部，所述第一卡接部与所述第二卡接部沿不同方向延伸，以对所述滤光条进行横向及纵向限位。
  9. 如权利要求1所述的触摸屏，其特征在于，所述滤光条还包括与所述壳体相抵的抵靠面。
  10. 如权利要求1至9任一项所述的触摸屏，其特征在于，所述触摸屏还包括用于将所述书写面板固定于所述壳体的固定件。
  11. 如权利要求10所述的触摸屏，其特征在于，所述固定件包括支撑所述书写面板的第一端及自所述第一端延伸并固定于所述壳体上的第二端。
  12. 如权利要求1至9任一项所述的触摸屏，其特征在于，所述IR模组和所述书写面板之间设有缓冲层。
  13. 一种显示器，其特征在于，包括外壳及如权利要求1～12任一项所述的触摸屏，所述触摸屏组装于所述外壳内。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109375835A (zh) * 2018-12-03 2019-02-22 青岛海信电器股份有限公司 触控显示装置
EP3998525A4 (en) * 2019-07-26 2023-07-26 Shenzhen Hitevision Technology Co., Ltd. INFRARED TOUCH SCREEN

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101414225A (zh) * 2008-11-21 2009-04-22 广东威创视讯科技股份有限公司 电子书写笔以及交互式输入系统
CN203480476U (zh) * 2013-09-04 2014-03-12 北京汇冠新技术股份有限公司 一种红外触摸屏
CN203786708U (zh) * 2014-01-29 2014-08-20 广州视睿电子科技有限公司 拆装式红外触摸装置及红外触摸屏
US20150054789A1 (en) * 2013-08-22 2015-02-26 Asia Vital Components Co., Ltd. Filter structure of infrared touch module
CN205983434U (zh) * 2016-06-01 2017-02-22 广州市创惟云电子科技有限公司 防机震红外触摸屏

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101414225A (zh) * 2008-11-21 2009-04-22 广东威创视讯科技股份有限公司 电子书写笔以及交互式输入系统
US20150054789A1 (en) * 2013-08-22 2015-02-26 Asia Vital Components Co., Ltd. Filter structure of infrared touch module
CN203480476U (zh) * 2013-09-04 2014-03-12 北京汇冠新技术股份有限公司 一种红外触摸屏
CN203786708U (zh) * 2014-01-29 2014-08-20 广州视睿电子科技有限公司 拆装式红外触摸装置及红外触摸屏
CN205983434U (zh) * 2016-06-01 2017-02-22 广州市创惟云电子科技有限公司 防机震红外触摸屏

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109375835A (zh) * 2018-12-03 2019-02-22 青岛海信电器股份有限公司 触控显示装置
EP3998525A4 (en) * 2019-07-26 2023-07-26 Shenzhen Hitevision Technology Co., Ltd. INFRARED TOUCH SCREEN
US11755168B2 (en) 2019-07-26 2023-09-12 SHENZHEN Hitevision Technology Co., Ltd. Infrared touch display screen

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