WO2014044181A1 - Infrared touch screen - Google Patents

Infrared touch screen Download PDF

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Publication number
WO2014044181A1
WO2014044181A1 PCT/CN2013/083727 CN2013083727W WO2014044181A1 WO 2014044181 A1 WO2014044181 A1 WO 2014044181A1 CN 2013083727 W CN2013083727 W CN 2013083727W WO 2014044181 A1 WO2014044181 A1 WO 2014044181A1
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WO
WIPO (PCT)
Prior art keywords
infrared
circuit board
touch panel
touch screen
frame
Prior art date
Application number
PCT/CN2013/083727
Other languages
French (fr)
Chinese (zh)
Inventor
尚晓东
吴羊群
刘新斌
Original Assignee
北京汇冠新技术股份有限公司
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Application filed by 北京汇冠新技术股份有限公司 filed Critical 北京汇冠新技术股份有限公司
Publication of WO2014044181A1 publication Critical patent/WO2014044181A1/en

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Classifications

    • 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
    • G06F3/0428—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual

Definitions

  • the invention relates to an infrared touch screen. Background technique
  • Infrared touch screens are widely used in various environments due to their stable operation and long service life.
  • an infrared touch screen includes a touch panel mounted on the front of the display and a bezel including a circuit board, such as a glass, and for covering the display, the bezel surrounding the outside of the touch panel, at the border
  • the infrared emitting elements and the infrared receiving tubes are arranged above the four sides of the circuit board.
  • the infrared emitting element and the infrared receiving tube are disposed on opposite sides of the frame to form a crossed infrared matrix on the touch panel surrounded by the frame.
  • the circuit board of the existing infrared touch screen, the infrared emitting element and the infrared receiving tube are disposed above the circuit board, and the infrared light emitted from the infrared emitting element causes a loss of light due to scattering.
  • the present invention provides an infrared touch screen capable of reducing the light intensity loss of infrared light emitted from an infrared emitting element.
  • An infrared touch screen includes a frame and a touch panel, the frame includes a casing and a circuit board, and the casing, the circuit board and the touch panel are sequentially stacked, and the circuit board is provided with an electronic component and an infrared transceiver component.
  • the infrared transceiver component is located between the circuit board and the touch panel.
  • the circuit board is disposed inside an edge of the touch panel.
  • the circuit board is disposed outside the touch panel.
  • the electronic component and the infrared transceiver component are both located between the circuit board and the touch panel.
  • the electronic component is located between the circuit board and the outer casing.
  • the frame further includes a light transmissive frame, and the light transmissive frame is located between the circuit board and the touch panel.
  • the light transmissive frame has a plurality of avoidance holes or avoidance slots matched with the infrared transceiver element.
  • the infrared transceiver component comprises an infrared receiving component and an infrared emitting component
  • the frame further comprises a convex lens, the convex lens being located inside the side of the frame on which the infrared receiving component is disposed.
  • the infrared touch screen since the infrared emitting element is sealed between the circuit board and the touch panel, on the one hand, the sealed space avoids the loss of infrared light emitted by the infrared emitting element, and on the other hand, the touch panel is usually made of transparent glass.
  • the infrared emitting component is disposed between the circuit board and the touch panel, so that the light irradiated to the glass surface by the infrared light emitted by the infrared emitting component can be reflected back to the infrared emitting component by the glass surface, thereby enhancing the emitted infrared light.
  • FIG. 1 is a perspective block diagram showing the structure of a touch screen according to the present invention. detailed description
  • the present invention provides an infrared touch screen including a bezel and a touch panel 13, the bezel including a casing 1 1 and a circuit board 12, and the casing 1 1 , the circuit board 12 and the touch panel 13 are sequentially stacked
  • the circuit board 12 is provided with an electronic component 14 and an infrared receiver
  • the emitting element 15 is located between the circuit board 12 and the touch panel 13.
  • the infrared transceiving element 15 is disposed between the circuit board 12 and the touch panel 13, that is, under the circuit board 12, rather than above the circuit board 12, on the one hand
  • the infrared emitting element is sealed under the circuit board, for example, between the circuit board and the touch panel 13, avoiding the loss of infrared light emitted by the infrared emitting element.
  • the touch panel 13 is usually made of transparent glass, infrared
  • the emitting element is disposed under the circuit board 12 such that the light illuminating the surface of the glass in the infrared light emitted by the infrared emitting element can be reflected back to the infrared emitting element by the surface of the glass, thereby enhancing the emitted infrared light.
  • the circuit board 12 may be disposed inside the edge of the touch panel 13.
  • the circuit board 12 and the casing 11 of the bezel are sequentially superimposed over the touch panel 13, instead of being disposed outside the touch panel 13 and overlapping the touch panel 13 as in the prior art.
  • the touch panel 13 may be made of a material such as transparent glass or plywood.
  • the circuit board 12 can also be disposed outside the touch panel 13, for example, by being overlapped with the touch panel 13.
  • the bezel with the circuit board 12 is disposed outside the touch panel 13, instead of being disposed above the touch panel 13, the height of the bezel can be lowered, so that the thickness of the touch panel becomes thin.
  • the electronic component 14 and the infrared transceiver component 15 may both be located between the circuit board 12 and the touch panel 13. Since the electronic component 14 and the infrared transceiver component 15 are on the same side, the thickness of the circuit board 12 can be reduced, thereby reducing the thickness of the touch screen frame.
  • the electronic component 14 may be located between the circuit board 12 and the outer casing 11. At this time, the electronic component 14 and the infrared transceiving element 15 are located on both sides of the circuit board 12.
  • the frame may further include a light transmissive frame 16 between the circuit board 12 and the touch panel.
  • the transparent frame 16 can have the infrared transceiver
  • the plurality of avoidance holes or avoidance slots 17 are matched in the member 15 for accommodating the infrared transceiver component 15 in the circuit board 12 in the avoidance hole or the avoidance slot 17.
  • the transparent frame 16 is used to filter ambient light other than infrared light, thereby avoiding the interference of the ambient light on the touch screen.
  • the infrared transceiver element 15 includes an infrared receiving element and an infrared emitting element
  • the frame further includes a convex lens located inside the side of the frame on which the infrared receiving element is disposed.
  • the incident infrared light can be concentrated, thereby enhancing the infrared light signal, thereby improving the performance of the infrared touch screen.
  • the infrared touch screen provided by the invention, since the infrared emitting element is sealed under the circuit board, on the one hand, the sealed space avoids the loss of infrared light emitted by the infrared emitting element.
  • the touch panel is usually made of transparent glass, infrared The emitting element is disposed under the circuit board such that the light illuminating the surface of the glass in the infrared light emitted by the infrared emitting element can be reflected back to the infrared emitting element by the surface of the glass, thereby enhancing the emitted infrared light.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

An infrared touch screen, comprising a frame and a touch panel (13); the frame comprises a casing (11) and a circuit board (12); the casing (11), the circuit board (12) and the touch panel (13) are sequentially superimposed; the circuit board (12) is provided with an electronic component (14) and an infrared emitting/receiving element (15) thereon; the infrared emitting/receiving element (15) is located between the circuit board (12) and the touch panel (13). The infrared touch screen is utilized to avoid the loss of the infrared light emitted by an infrared emitting element, thus intensifying the infrared light emitted by the infrared emitting element.

Description

红外触摸屏  Infrared touch screen
技术领域 Technical field
本发明涉及一种红外触摸屏。 背景技术  The invention relates to an infrared touch screen. Background technique
红外触摸屏因为工作稳定、 使用寿命长等优点， 大量应用在各种环境 中。  Infrared touch screens are widely used in various environments due to their stable operation and long service life.
目前， 红外触摸屏包括安装在显示器的前面的触摸面板和含有电路板 的边框， 所述触摸面板诸如可以由玻璃制成， 并用于覆盖在显示器上， 边 框围在所述触摸面板的外侧，在边框内的电路板上除了要设置电子元器件， 还在电路板的四条边的上方排布红外发射元件和红外接收管。 一般情况下 红外发射元件和红外接收管设置在边框的相对的两条边上， 从而在边框围 住的触摸面板上形成交叉的红外矩阵。 用户在触摸红外触摸屏的触摸面板 时， 手指就会挡住经过该位置的横竖红外线， 从而判断出触摸点在屏幕的 位置。  Currently, an infrared touch screen includes a touch panel mounted on the front of the display and a bezel including a circuit board, such as a glass, and for covering the display, the bezel surrounding the outside of the touch panel, at the border In addition to the electronic components to be disposed on the circuit board, the infrared emitting elements and the infrared receiving tubes are arranged above the four sides of the circuit board. In general, the infrared emitting element and the infrared receiving tube are disposed on opposite sides of the frame to form a crossed infrared matrix on the touch panel surrounded by the frame. When the user touches the touch panel of the infrared touch screen, the finger blocks the horizontal and vertical infrared rays passing through the position, thereby judging the position of the touch point on the screen.
然而， 现有的红外触摸屏的电路板， 红外发射元件和红外接收管都设 置在电路板的上方， 从红外发射元件发出的红外光线会由于散射而造成光 强损失。 发明内容  However, the circuit board of the existing infrared touch screen, the infrared emitting element and the infrared receiving tube are disposed above the circuit board, and the infrared light emitted from the infrared emitting element causes a loss of light due to scattering. Summary of the invention
针对现有技术中存在的上述问题， 本发明提供了一种红外触摸屏， 能 够减少红外发射元件发出的红外光线的光强损失。  In view of the above problems in the prior art, the present invention provides an infrared touch screen capable of reducing the light intensity loss of infrared light emitted from an infrared emitting element.
为达到上述目的， 本发明采用如下技术方案：  In order to achieve the above object, the present invention adopts the following technical solutions:
一种红外触摸屏， 该红外触摸屏包括边框和触摸面板， 所述边框包括 外壳和电路板， 所述外壳、 电路板和触摸面板依次叠加， 所述电路板上设 置有电子元器件和红外收发元件， 其中， 所述红外收发元件位于所述电路 板与所述触摸面板之间。  An infrared touch screen includes a frame and a touch panel, the frame includes a casing and a circuit board, and the casing, the circuit board and the touch panel are sequentially stacked, and the circuit board is provided with an electronic component and an infrared transceiver component. The infrared transceiver component is located between the circuit board and the touch panel.
优选地， 所述电路板设置在所述触摸面板的边缘的内侧。 优选地， 所述电路板设置在所述触摸面板的外侧。 Preferably, the circuit board is disposed inside an edge of the touch panel. Preferably, the circuit board is disposed outside the touch panel.
优选地， 所述电子元器件和所述红外收发元件都位于所述电路板与所 述触摸面板之间。  Preferably, the electronic component and the infrared transceiver component are both located between the circuit board and the touch panel.
优选地， 所述电子元器件位于所述电路板与所述外壳之间。  Preferably, the electronic component is located between the circuit board and the outer casing.
优选地， 所述边框还包括透光框， 所述透光框位于所述电路板与所述 触摸面板之间。  Preferably, the frame further includes a light transmissive frame, and the light transmissive frame is located between the circuit board and the touch panel.
优选地， 所述透光框具有和所述红外收发元件相匹配的多个避位孔或 避位槽。  Preferably, the light transmissive frame has a plurality of avoidance holes or avoidance slots matched with the infrared transceiver element.
优选地， 所述红外收发元件包括红外接收元件和红外发射元件， 所述 边框还包括凸透镜， 所述凸透镜位于所述边框的设置有所述红外接收元件 的边的内侧。  Preferably, the infrared transceiver component comprises an infrared receiving component and an infrared emitting component, and the frame further comprises a convex lens, the convex lens being located inside the side of the frame on which the infrared receiving component is disposed.
利用本发明提供的红外触摸屏， 由于将红外发射元件密封在电路板与 触摸面板之间， 一方面由于密封空间避免了红外发射元件发出的红外光线 的损失， 另一方面， 触摸面板通常由透明玻璃制成， 红外发射元件设置在 电路板与触摸面板之间， 使得红外发射元件发出的红外光线中照射到玻璃 表面的光线可以被玻璃表面反射回红外发射元件， 从而使得发出的红外光 线加强。 附图说明  With the infrared touch screen provided by the present invention, since the infrared emitting element is sealed between the circuit board and the touch panel, on the one hand, the sealed space avoids the loss of infrared light emitted by the infrared emitting element, and on the other hand, the touch panel is usually made of transparent glass. The infrared emitting component is disposed between the circuit board and the touch panel, so that the light irradiated to the glass surface by the infrared light emitted by the infrared emitting component can be reflected back to the infrared emitting component by the glass surface, thereby enhancing the emitted infrared light. DRAWINGS
图 1是根据本发明的触摸屏的结构的立体框图。 具体实施方式  1 is a perspective block diagram showing the structure of a touch screen according to the present invention. detailed description
下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进 行清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明的一部分实施 例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员 在没有做出创造性劳动的前提下所获得的所有其他实施例， 都属于本发明 保护的范围。  The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
参考图 1 , 本发明提供了一种红外触摸屏， 该红外触摸屏包括边框和 触摸面板 13 , 所述边框包括外壳 1 1和电路板 12 , 所述外壳 1 1、 电路板 12 和触摸面板 13依次叠加，所述电路板 12上设置有电子元器件 14和红外收 发元件 15 , 其中， 所述红外收发元件 15位于所述电路板 12与所述触摸面 板 13之间。 Referring to FIG. 1, the present invention provides an infrared touch screen including a bezel and a touch panel 13, the bezel including a casing 1 1 and a circuit board 12, and the casing 1 1 , the circuit board 12 and the touch panel 13 are sequentially stacked The circuit board 12 is provided with an electronic component 14 and an infrared receiver The emitting element 15 is located between the circuit board 12 and the touch panel 13.
根据本发明的触摸屏， 红外收发元件 15设置在电路板 12与所述触摸 面板 13之间，也就是设置在电路板 12的下面，而不是在电路板 12的上面， 一方面由于将红外收发元件中的红外发射元件密封在电路板下方， 例如密 封在电路板与触摸面板 13之间，避免了红外发射元件发出的红外光线的损 失， 另一方面， 触摸面板 13通常由透明玻璃制成， 红外发射元件设置在电 路板 12的下面，使得红外发射元件发出的红外光线中照射到玻璃表面的光 线可以被玻璃表面反射回红外发射元件， 从而使得发出的红外光线加强。  According to the touch screen of the present invention, the infrared transceiving element 15 is disposed between the circuit board 12 and the touch panel 13, that is, under the circuit board 12, rather than above the circuit board 12, on the one hand The infrared emitting element is sealed under the circuit board, for example, between the circuit board and the touch panel 13, avoiding the loss of infrared light emitted by the infrared emitting element. On the other hand, the touch panel 13 is usually made of transparent glass, infrared The emitting element is disposed under the circuit board 12 such that the light illuminating the surface of the glass in the infrared light emitted by the infrared emitting element can be reflected back to the infrared emitting element by the surface of the glass, thereby enhancing the emitted infrared light.
根据一种实施方式， 所述电路板 12可以设置在所述触摸面板 13的边 缘的内侧。 这样， 在触摸面板 13的上方依次叠加边框的电路板 12和外壳 11 , 而不是像现有技术一样将边框设置到触摸面板 13外并和触摸面板 13 搭接。 其中， 所述触摸面板 13诸如可以由透明玻璃或胶合板等材料制成。 利用该技术方案， 通过将带有电路板 12的边框设置在触摸面板 13的边缘 的内侧， 也就是设置在触摸面板 13的上方， 而不是设置在触摸面板 13的 外侧， 从而不再需要在边框上留出与触摸面板 13搭接的区域， 减少了边框 的宽度， 实现了超窄边框的触摸屏。  According to an embodiment, the circuit board 12 may be disposed inside the edge of the touch panel 13. Thus, the circuit board 12 and the casing 11 of the bezel are sequentially superimposed over the touch panel 13, instead of being disposed outside the touch panel 13 and overlapping the touch panel 13 as in the prior art. The touch panel 13 may be made of a material such as transparent glass or plywood. With this technical solution, by arranging the bezel with the circuit board 12 on the inner side of the edge of the touch panel 13, that is, above the touch panel 13, instead of being disposed outside the touch panel 13, the frame is no longer needed. An area overlapping the touch panel 13 is left, the width of the frame is reduced, and a touch screen with an ultra-narrow bezel is realized.
根据另一种实施方式， 所述电路板 12也可以设置在所述触摸面板 13 的外侧， 例如可以通过搭接和触摸面板 13 相连接。 这样由于带有电路板 12的边框设置在触摸面板 13的外侧， 而不是设置在触摸面板 13的上方， 可以降低边框的高度， 使得触摸屏的厚度变薄。  According to another embodiment, the circuit board 12 can also be disposed outside the touch panel 13, for example, by being overlapped with the touch panel 13. Thus, since the bezel with the circuit board 12 is disposed outside the touch panel 13, instead of being disposed above the touch panel 13, the height of the bezel can be lowered, so that the thickness of the touch panel becomes thin.
根据一种实施方式， 所述电子元器件 14和所述红外收发元件 15可以 都位于所述电路板 12与所述触摸面板 13之间。由于电子元器件 14和红外 收发元件 15位于同一侧， 可以减少电路板 12的厚度， 从而减少触摸屏边 框的厚度。  According to an embodiment, the electronic component 14 and the infrared transceiver component 15 may both be located between the circuit board 12 and the touch panel 13. Since the electronic component 14 and the infrared transceiver component 15 are on the same side, the thickness of the circuit board 12 can be reduced, thereby reducing the thickness of the touch screen frame.
根据另一种实施方式， 所述电子元器件 14可以位于所述电路板 12与 所述外壳 11之间。此时， 电子元器件 14和红外收发元件 15位于所述电路 板 12的两面。  According to another embodiment, the electronic component 14 may be located between the circuit board 12 and the outer casing 11. At this time, the electronic component 14 and the infrared transceiving element 15 are located on both sides of the circuit board 12.
优选地， 所述边框还可以包括透光框 16, 所述透光框 16位于所述电 路板 12与所述触摸面板之间。 所述透光框 16可以具有和所述红外收发元 件 15相匹配的多个避位孔或避位槽 17 , 以用于将电路板 12中的红外收发 元件 15容纳在该避位孔或避位槽 17中。所述透光框 16用于过滤除了红外 光线以外的环境光， 避免了环境光对触摸屏的千扰。 Preferably, the frame may further include a light transmissive frame 16 between the circuit board 12 and the touch panel. The transparent frame 16 can have the infrared transceiver The plurality of avoidance holes or avoidance slots 17 are matched in the member 15 for accommodating the infrared transceiver component 15 in the circuit board 12 in the avoidance hole or the avoidance slot 17. The transparent frame 16 is used to filter ambient light other than infrared light, thereby avoiding the interference of the ambient light on the touch screen.
优选地， 所述红外收发元件 15包括红外接收元件和红外发射元件， 所 述边框还包括凸透镜， 所述凸透镜位于所述边框的设置有所述红外接收元 件的边的内侧。 通过在红外接收元件的前方设置有凸透镜， 能够将射入的 红外光线进行汇聚， 从而使得红外光线信号增强， 进而可以提高红外触摸 屏的性能。  Preferably, the infrared transceiver element 15 includes an infrared receiving element and an infrared emitting element, and the frame further includes a convex lens located inside the side of the frame on which the infrared receiving element is disposed. By providing a convex lens in front of the infrared receiving element, the incident infrared light can be concentrated, thereby enhancing the infrared light signal, thereby improving the performance of the infrared touch screen.
利用本发明提供的红外触摸屏，由于将红外发射元件密封在电路板下， 一方面由于密封空间避免了红外发射元件发出的红外光线的损失， 另一方 面， 触摸面板通常由透明玻璃制成， 红外发射元件设置在电路板的下面， 使得红外发射元件发出的红外光线中照射到玻璃表面的光线可以被玻璃表 面反射回红外发射元件， 从而使得发出的红外光线加强。  By using the infrared touch screen provided by the invention, since the infrared emitting element is sealed under the circuit board, on the one hand, the sealed space avoids the loss of infrared light emitted by the infrared emitting element. On the other hand, the touch panel is usually made of transparent glass, infrared The emitting element is disposed under the circuit board such that the light illuminating the surface of the glass in the infrared light emitted by the infrared emitting element can be reflected back to the infrared emitting element by the surface of the glass, thereby enhancing the emitted infrared light.
以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围并不局 限于此， 任何熟悉本领域技术的技术人员在本发明公开的技术范围内， 可 轻易想到的变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发 明的保护范围应以所述权利要求的保护范围为准。  The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present disclosure. All should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

权利要求 Rights request
1、 一种红外触摸屏， 该红外触摸屏包括边框和触摸面板， 所述边框包 括外壳和电路板， 所述外壳、 电路板和触摸面板依次叠加， 所述电路板上 设置有电子元器件和红外收发元件， 其特征在于， 所述红外收发元件位于 所述电路板与所述触摸面板之间 1. An infrared touch screen. The infrared touch screen includes a frame and a touch panel. The frame includes a housing and a circuit board. The housing, circuit board and touch panel are stacked in sequence. Electronic components and infrared transceivers are provided on the circuit board. component, characterized in that the infrared transceiver component is located between the circuit board and the touch panel
2、 根据权利要求 1 所述的红外触摸屏， 其特征在于， 所述电路板设置 在所述触摸面板的边缘的内恻。 2. The infrared touch screen according to claim 1, characterized in that the circuit board is disposed inside the edge of the touch panel.
3、 根据权利要求 1 所述的红外触摸屏， 其特征在于， 所述电路板设置 在所述触摸面板的外恻。 3. The infrared touch screen according to claim 1, characterized in that the circuit board is arranged outside the touch panel.
4、 根据权利要求 1 所述的红外触摸屏， 其特征在于， 所述电子元器件 和所述红外收发元件都位于所述电路板与所述触摸面板之间。 4. The infrared touch screen according to claim 1, wherein the electronic components and the infrared transceiver element are located between the circuit board and the touch panel.
5、 根据权利要求 1 所述的红外触摸屏， 其特征在于， 所述电子元器件 位于所述电路板与所述外壳之间 ,:■ 5. The infrared touch screen according to claim 1, characterized in that the electronic components are located between the circuit board and the housing:■
6、 根据权利要求 5中任一项权利要求所述的红外触摸屏， 其特征在 于， 所述边框还包括透光框， 所述透光框位于所述电路板与所述触摸面板 之间 ,:， 6. The infrared touch screen according to any one of claims 5, wherein the frame further includes a light-transmitting frame, and the light-transmitting frame is located between the circuit board and the touch panel : ,
7、 根据权利要求 6所述的红外触摸屏， 其特征在于， 所述透光框具有 和所述红外收发元件相匹配的多个避位孔或避位槽。 7. The infrared touch screen according to claim 6, wherein the light-transmitting frame has a plurality of escape holes or escape grooves matching the infrared transceiver element.
8、 根据权利要求 1 所述的红外触摸屏， 其特征在于， 所述红外收发元 件包括红外接收元件和红外发射元件， 所述边框还包括凸透镜， 所述凸透 镜位于所述边框的设置有所述红外接收元件的边的内恻。 8. The infrared touch screen according to claim 1, characterized in that, the infrared transceiver element includes an infrared receiving element and an infrared emitting element, the frame further includes a convex lens, the convex lens is located on the side of the frame where the infrared Receives the content of the edge of the component.
PCT/CN2013/083727 2012-09-18 2013-09-18 Infrared touch screen WO2014044181A1 (en)

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