WO2017157101A1 - Touch panel - Google Patents

Touch panel Download PDF

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Publication number
WO2017157101A1
WO2017157101A1 PCT/CN2017/071465 CN2017071465W WO2017157101A1 WO 2017157101 A1 WO2017157101 A1 WO 2017157101A1 CN 2017071465 W CN2017071465 W CN 2017071465W WO 2017157101 A1 WO2017157101 A1 WO 2017157101A1
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WO
WIPO (PCT)
Prior art keywords
layer
touch
touch panel
pcb
light
Prior art date
Application number
PCT/CN2017/071465
Other languages
French (fr)
Chinese (zh)
Inventor
郑少华
黎剑辉
张圳
朱一伟
罗海彬
湛浩
Original Assignee
丰唐物联技术（深圳）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 丰唐物联技术（深圳）有限公司 filed Critical 丰唐物联技术（深圳）有限公司
Publication of WO2017157101A1 publication Critical patent/WO2017157101A1/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

Definitions

  • the present invention relates to the field of touch control, and in particular, to a touch panel.
  • a touch layer is printed on a PCB and assembled on a PCB.
  • the top to bottom of the touchpad is: a glass layer,
  • the light guiding layer and the PCB board are also provided with LED lights on the PCB board. Due to the large interval between the touch layer and the glass layer, the sensitivity of the touch is poor, and the function of sliding continuous touch can not be realized, and only a single touch function can be realized. .
  • the present invention provides a touch panel, which aims to solve the problem that the existing touchpad has low sensitivity and cannot realize the function of sliding connection touch.
  • a touch panel includes a glass layer, a touch layer, a light guiding layer, and a PCB layer, and the glass layer, the touch layer, the light guiding layer, and the PCB layer are sequentially stacked from top to bottom.
  • the PCB layer includes a PCB board and a light emitting unit disposed on an end surface of the PCB board.
  • the touch layer is a flexible member.
  • the touch layer is attached to a lower end surface of the glass layer.
  • the glass layer is provided with a first light transmissive area
  • the touch layer is provided with a second light transmissive area
  • the first light transmissive area and the second light transmissive area correspond to each other.
  • the first light transmissive area has a cross shape.
  • the touch panel further includes a casing, and the glass layer, the touch layer, the light guiding layer and the PCB layer are installed in the casing.
  • the inner side wall of the casing is provided with a flange, and the inner edge of the flange is enclosed by an inner hollow structure, and the light guiding layer is embedded in the inner hollow structure, a PCB layer is disposed on a lower end surface of the flange, The touch layer and the glass layer are disposed on an upper end surface of the flange.
  • the upper end of the casing is opened, the glass layer is embedded in the mouth, and the upper end surface of the glass layer is flat with the upper end surface of the mouth.
  • the shape of the inner hollow structure is the same as the shape of the light guiding layer.
  • the utility model has the beneficial effects that the touch layer is no longer printed on the PCB board, but a touch layer is separately formed, and the touch layer is placed on the lower end surface of the glass layer to reduce the glass layer.
  • the interval between the touch layer and the touch layer increases the sensitivity of the touch panel, thereby enabling the touch panel to perform a function of slidingly connecting the touch.
  • FIG. 1 is an exploded view of a touch panel provided by an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a housing and a light guiding layer in a touch panel according to an embodiment of the present invention
  • FIG. 3 is a schematic view of the touch panel provided by the embodiment of the present invention after assembly.
  • an embodiment of the present invention provides a touch panel including a glass layer 11 , a touch layer 12 , a light guiding layer 13 , and a PCB layer 14 , a glass layer 11 , a touch layer 12 , and a conductive layer
  • the light layer 13 and the PCB layer 14 are sequentially stacked from top to bottom.
  • the touch layer 12 is no longer printed on the PCB board, but is an independently separable component, and the touch layer 12 is placed on the lower end surface of the glass layer 11, reducing the interval between the glass layer 11 and the touch layer 12. Improve the sensitivity of the touchpad, so that the touchpad can realize the function of sliding connection touch.
  • the PCB layer 14 includes a PCB board (not labeled in the drawing) and a light emitting unit (not shown in the figure), a light emitting sheet The element is disposed on the upper end surface of the PCB.
  • the light emitting unit is an LED light.
  • the touch layer 12 is a flexible member, and the touch layer 12 is attached to the lower end surface of the glass layer 11.
  • the touch layer 12 is a flexible member that can be well adhered to the lower end surface of the glass layer 11.
  • the touch layer 12 is adhered to the lower end surface of the glass layer 11 to reduce the interval between the glass layer 11 and the touch layer 12, and the touch panel is improved. Sensitivity.
  • the plug layer 121 is provided on the left and right sides of the touch layer 12, the plug 121 is connected to the PCB board, the touch layer 12 is operated, and the touch layer 12 and the PCB board are capable of communicating.
  • the glass layer 11 is provided with a first light-transmissive region 111. Since the glass layer 11 is permeable to light, it covers the region that does not require light transmission, thereby forming the first light-transmitting region 111. In the present embodiment, it is possible to cover the unnecessary light-transmitting region by applying a pigment on the glass layer 11.
  • the touch layer 12 is provided with a second light transmitting region (not shown in the drawing), and the first light transmitting region 111 Corresponding to the second light transmission area.
  • the light emitted by the light emitting unit of the PCB layer 14 passes through the light guiding layer 13, passes through the second light transmitting region of the touch layer 12, and then passes through the first light transmitting region 111 of the glass layer 11 to the outside, for the glass layer 11 In other words, the light is formed to be emitted to the outside only in the first light-transmitting region 111.
  • the region of the second light-transmitting region can include at least the region of the first light-transmitting region 111 according to the relationship of the upper and lower sides.
  • the first light transmitting region 111 has a cross shape.
  • the touch panel further includes a housing 15, a glass layer 11, a touch layer 12, a light guiding layer 13, and a PCB layer 14 mounted in the housing 15.
  • the inner side wall of the casing 15 is provided with a flange 151, and the inner periphery of the flange 151 encloses the inner hollow structure 152, the shape of the inner hollow structure 152 and the shape of the light guiding layer 13.
  • the light guiding layer 13 is embedded in the inner hollow structure 152
  • the PCB layer 14 is disposed on the lower end surface of the flange 151
  • the touch layer 12 and the glass layer 11 are disposed on the upper end surface of the flange 151.
  • the upper end of the casing 15 is opened, the glass layer 11 is embedded in the cornice, and the upper end surface of the glass layer 11 is flush with the upper end surface of the cornice.

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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)
  • Optical Integrated Circuits (AREA)
  • Position Input By Displaying (AREA)

Abstract

The present invention relates to the touch control field, and specially relates to a touch panel. The touch panel includes a glass layer, a touch layer, a light guide layer and a PCB layer. The glass layer, the touch layer, the light guide layer and the PCB layer are sequentially arranged from top to bottom. Instead of printing the touch layer on the PCB, a touch layer is manufactured separately and placed on the lower end surface of the glass layer to reduce the spacing between the glass layer and the touch layer, thereby improving the sensitivity of the touch panel, and achieving a sliding connection touch function of the touch panel.

Description

说明书 发明名称：一种触摸板  Manual Title: A touchpad
技术领域  Technical field
[0001] 本实用新型涉及触摸控制领域， 特别涉及一种触摸板。  [0001] The present invention relates to the field of touch control, and in particular, to a touch panel.
背景技术  Background technique
[0002] 在现有的技术中， 为了生产的方便， 在制造触摸板吋， 将触摸层印刷在 PCB板 上， 集合在 PCB板上， 触摸板从上到下的布层为： 玻璃层、 导光层及 PCB板， 在 PCB板上还设有 LED灯， 由于触摸层与玻璃层的间隔较大， 导致触摸的灵敏度较 差， 实现不了滑动连续触摸的功能， 只能实现单点触摸功能。  [0002] In the prior art, for the convenience of production, in manufacturing a touchpad, a touch layer is printed on a PCB and assembled on a PCB. The top to bottom of the touchpad is: a glass layer, The light guiding layer and the PCB board are also provided with LED lights on the PCB board. Due to the large interval between the touch layer and the glass layer, the sensitivity of the touch is poor, and the function of sliding continuous touch can not be realized, and only a single touch function can be realized. .
技术问题  technical problem
[0003] 针对现有技术不足， 本实用新型提出一种触摸板， 旨在解决现有的触摸板灵敏 度低， 实现不了滑动连接触摸的功能的问题。  [0003] In view of the deficiencies of the prior art, the present invention provides a touch panel, which aims to solve the problem that the existing touchpad has low sensitivity and cannot realize the function of sliding connection touch.
问题的解决方案  Problem solution
技术解决方案  Technical solution
[0004] 本实用新型提出的技术方案是： [0004] The technical solution proposed by the utility model is:
[0005] 一种触摸板， 包括玻璃层、 触摸层、 导光层和 PCB层， 所述玻璃层、 所述触摸 层、 所述导光层及所述 PCB层依次从上到下层叠布置。  [0005] A touch panel includes a glass layer, a touch layer, a light guiding layer, and a PCB layer, and the glass layer, the touch layer, the light guiding layer, and the PCB layer are sequentially stacked from top to bottom.
[0006] 进一步地， 所述 PCB层包括 PCB板以及设于所述 PCB板上端面的发光单元。 [0006] Further, the PCB layer includes a PCB board and a light emitting unit disposed on an end surface of the PCB board.
[0007] 进一步地， 所述触摸层为柔性件。 [0007] Further, the touch layer is a flexible member.
[0008] 进一步地， 所述触摸层贴于所述玻璃层的下端面。 [0008] Further, the touch layer is attached to a lower end surface of the glass layer.
[0009] 进一步地， 所述玻璃层设有第一透光区域， 所述触摸层设有第二透光区域， 所 述第一透光区域与所述第二透光区域上下对应。  [0009] Further, the glass layer is provided with a first light transmissive area, and the touch layer is provided with a second light transmissive area, and the first light transmissive area and the second light transmissive area correspond to each other.
[0010] 进一步地， 所述第一透光区域呈十字状。 [0010] Further, the first light transmissive area has a cross shape.
[0011] 进一步地， 所述触摸板还包括壳体， 所述玻璃层、 所述触摸层、 所述导光层及 所述 PCB层安装于所述壳体中。  [0011] Further, the touch panel further includes a casing, and the glass layer, the touch layer, the light guiding layer and the PCB layer are installed in the casing.
[0012] 进一步地， 所述壳体的内侧壁设有凸缘， 所述凸缘朝内的外边沿围成内中空结 构， 所述导光层内嵌于所述内中空结构中， 所述 PCB层设于所述凸缘的下端面， 所述触摸层及所述玻璃层设于所述凸缘的上端面。 [0012] Further, the inner side wall of the casing is provided with a flange, and the inner edge of the flange is enclosed by an inner hollow structure, and the light guiding layer is embedded in the inner hollow structure, a PCB layer is disposed on a lower end surface of the flange, The touch layer and the glass layer are disposed on an upper end surface of the flange.
[0013] 进一步地， 所述壳体的上端幵口， 所述玻璃层内嵌于所述幵口中， 所述玻璃层 的上端面与所述幵口的上端面持平。  [0013] Further, the upper end of the casing is opened, the glass layer is embedded in the mouth, and the upper end surface of the glass layer is flat with the upper end surface of the mouth.
[0014] 进一步地， 所述内中空结构的形状与导光层的形状相同。  [0014] Further, the shape of the inner hollow structure is the same as the shape of the light guiding layer.
发明的有益效果  Advantageous effects of the invention
有益效果  Beneficial effect
[0015] 根据上述的技术方案， 本实用新型有益效果： 不再将触摸层印刷在 PCB板上， 而是单独制作一个触摸层， 并将该触摸层置于玻璃层的下端面， 减少玻璃层与 触摸层之间的间隔， 提高触摸板的灵敏度， 从而使该触摸板实现滑动连接触摸 的功能。  [0015] According to the above technical solution, the utility model has the beneficial effects that the touch layer is no longer printed on the PCB board, but a touch layer is separately formed, and the touch layer is placed on the lower end surface of the glass layer to reduce the glass layer. The interval between the touch layer and the touch layer increases the sensitivity of the touch panel, thereby enabling the touch panel to perform a function of slidingly connecting the touch.
对附图的简要说明  Brief description of the drawing
附图说明  DRAWINGS
[0016] 图 1是应用本实用新型实施例提供的触摸板的分解图；  1 is an exploded view of a touch panel provided by an embodiment of the present invention;
[0017] 图 2是应用本实用新型实施例提供的触摸板中的壳体和导光层的示意图；  2 is a schematic diagram of a housing and a light guiding layer in a touch panel according to an embodiment of the present invention;
[0018] 图 3是应用本实用新型实施例提供的触摸板装配后的示意图。  3 is a schematic view of the touch panel provided by the embodiment of the present invention after assembly.
本发明的实施方式 Embodiments of the invention
[0019] 为了使本实用新型的目的、 技术方案及优点更加清楚明白， 以下结合附图及实 施例， 对本实用新型进行进一步详细说明。 应当理解， 此处所描述的具体实施 例仅仅用以解释本实用新型， 并不用于限定本实用新型。  [0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
[0020] 如图 1所示， 本实用新型实施例提出一种触摸板， 该触摸板包括玻璃层 11、 触 摸层 12、 导光层 13和 PCB层 14， 玻璃层 11、 触摸层 12、 导光层 13和 PCB层 14依次 从上到下层叠布置。 As shown in FIG. 1 , an embodiment of the present invention provides a touch panel including a glass layer 11 , a touch layer 12 , a light guiding layer 13 , and a PCB layer 14 , a glass layer 11 , a touch layer 12 , and a conductive layer The light layer 13 and the PCB layer 14 are sequentially stacked from top to bottom.
[0021] 触摸层 12不再印刷在 PCB板上， 而是独立可分离的部件， 并将该触摸层 12置于 玻璃层 11的下端面， 减少玻璃层 11与触摸层 12之间的间隔， 提高触摸板的灵敏 度， 从而使该触摸板实现滑动连接触摸的功能。  [0021] The touch layer 12 is no longer printed on the PCB board, but is an independently separable component, and the touch layer 12 is placed on the lower end surface of the glass layer 11, reducing the interval between the glass layer 11 and the touch layer 12. Improve the sensitivity of the touchpad, so that the touchpad can realize the function of sliding connection touch.
[0022] PCB层 14包括 PCB板 （在图中未标注） 和发光单元 （在图中未标注） ， 发光单 元设于 PCB板的上端面。 [0022] The PCB layer 14 includes a PCB board (not labeled in the drawing) and a light emitting unit (not shown in the figure), a light emitting sheet The element is disposed on the upper end surface of the PCB.
[0023] 在本实施例中， 发光单元为 LED灯。 [0023] In this embodiment, the light emitting unit is an LED light.
[0024] 在本实施例中， 触摸层 12为柔性件， 并且触摸层 12贴于玻璃层 11的下端面。 触 摸层 12为柔性件能够很好地贴合在玻璃层 11的下端面， 触摸层 12粘固在玻璃层 1 1的下端面， 减少玻璃层 11与触摸层 12之间的间隔， 提高触摸板的灵敏度。  [0024] In the present embodiment, the touch layer 12 is a flexible member, and the touch layer 12 is attached to the lower end surface of the glass layer 11. The touch layer 12 is a flexible member that can be well adhered to the lower end surface of the glass layer 11. The touch layer 12 is adhered to the lower end surface of the glass layer 11 to reduce the interval between the glass layer 11 and the touch layer 12, and the touch panel is improved. Sensitivity.
[0025] 触摸层 12的左右两侧设有插头 121， 插头 121与 PCB板连接， 使触摸层 12工作， 以及触摸层 12与 PCB板能够进行通信。  [0025] The plug layer 121 is provided on the left and right sides of the touch layer 12, the plug 121 is connected to the PCB board, the touch layer 12 is operated, and the touch layer 12 and the PCB board are capable of communicating.
[0026] 玻璃层 11设有第一透光区域 111， 由于玻璃层 11是可以透光的， 其将不需要透 光的区域进行遮盖， 进而形成第一透光区域 111。 在本实施例中， 可以采用在玻 璃层 11上涂颜料的方式对不需要透光区域进行遮盖。  The glass layer 11 is provided with a first light-transmissive region 111. Since the glass layer 11 is permeable to light, it covers the region that does not require light transmission, thereby forming the first light-transmitting region 111. In the present embodiment, it is possible to cover the unnecessary light-transmitting region by applying a pigment on the glass layer 11.
[0027] 为了使 PCB层 14的发光单元透过导光层 13到达第一透光区域 111， 在触摸层 12 设有第二透光区域 （在图中未标注） ， 第一透光区域 111与第二透光区域上下对 应。 PCB层 14的发光单元发出的光， 经过导光层 13， 穿过触摸层 12的第二透光区 域， 再穿过玻璃层 11的第一透光区域 111射向外界， 对于玻璃层 11而言， 形成光 线仅在第一透光区域 111射向外界。  [0027] In order to make the light emitting unit of the PCB layer 14 pass through the light guiding layer 13 to reach the first light transmitting region 111, the touch layer 12 is provided with a second light transmitting region (not shown in the drawing), and the first light transmitting region 111 Corresponding to the second light transmission area. The light emitted by the light emitting unit of the PCB layer 14 passes through the light guiding layer 13, passes through the second light transmitting region of the touch layer 12, and then passes through the first light transmitting region 111 of the glass layer 11 to the outside, for the glass layer 11 In other words, the light is formed to be emitted to the outside only in the first light-transmitting region 111.
[0028] 在本实施例中， 根据上下对应的关系， 第二透光区域的区域范围至少能够包含 第一透光区域 111的区域范围。  In this embodiment, the region of the second light-transmitting region can include at least the region of the first light-transmitting region 111 according to the relationship of the upper and lower sides.
[0029] 在本实施例中， 第一透光区域 111呈十字状。  [0029] In the embodiment, the first light transmitting region 111 has a cross shape.
[0030] 触摸板还包括壳体 15， 玻璃层 11、 触摸层 12、 导光层 13及 PCB层 14安装在壳体 15中。  [0030] The touch panel further includes a housing 15, a glass layer 11, a touch layer 12, a light guiding layer 13, and a PCB layer 14 mounted in the housing 15.
[0031] 在本实施例中， 壳体 15的内侧壁四周设有凸缘 151， 凸缘 151朝内的外周边沿围 成内中空结构 152， 内中空结构 152的形状与导光层 13的形状相同， 导光层 13内 嵌在内中空结构 152中， PCB层 14设于凸缘 151的下端面， 触摸层 12及玻璃层 11设 于凸缘 151的上端面。  [0031] In the embodiment, the inner side wall of the casing 15 is provided with a flange 151, and the inner periphery of the flange 151 encloses the inner hollow structure 152, the shape of the inner hollow structure 152 and the shape of the light guiding layer 13. Similarly, the light guiding layer 13 is embedded in the inner hollow structure 152, the PCB layer 14 is disposed on the lower end surface of the flange 151, and the touch layer 12 and the glass layer 11 are disposed on the upper end surface of the flange 151.
[0032] 在本实施例中， 壳体 15的上端幵口， 玻璃层 11内嵌于幵口中， 玻璃层 11的上端 面与幵口的上端面持平。  In the present embodiment, the upper end of the casing 15 is opened, the glass layer 11 is embedded in the cornice, and the upper end surface of the glass layer 11 is flush with the upper end surface of the cornice.
[0033] 以上所述仅为本实用新型的较佳实施例而已， 并不用以限制本实用新型， 凡在 本实用新型的精神和原则之内所作的任何修改、 等同替换和改进等， 均应包含 在本实用新型的保护范围之内。 The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should be Contains Within the scope of protection of the present invention.

Claims

权利要求书 Claim
一种触摸板， 其特征在于， 所述触摸板包括玻璃层、 触摸层、 导光层 和 PCB层， 所述玻璃层、 所述触摸层、 所述导光层及所述 PCB层依次 从上到下层叠布置。 A touch panel, comprising: a glass layer, a touch layer, a light guiding layer and a PCB layer, wherein the glass layer, the touch layer, the light guiding layer and the PCB layer are sequentially from above To the next stacking arrangement.
据权利要求 1所述的一种触摸板， 其特征在于， 所述 PCB层包括 PCB 板以及设于所述 PCB板上端面的发光单元。 A touch panel according to claim 1, wherein said PCB layer comprises a PCB board and a light emitting unit provided on an end surface of said PCB board.
根据权利要求 1所述的一种触摸板， 其特征在于， 所述触摸层为柔性 件。 A touch panel according to claim 1, wherein the touch layer is a flexible member.
根据权利要求 3所述的一种触摸板， 其特征在于， 所述触摸层贴于所 述玻璃层的下端面。 A touch panel according to claim 3, wherein the touch layer is attached to a lower end surface of the glass layer.
根据权利要求 1所述的一种触摸板， 其特征在于， 所述玻璃层设有第 一透光区域， 所述触摸层设有第二透光区域， 所述第一透光区域与所 述第二透光区域上下对应。 The touch panel according to claim 1, wherein the glass layer is provided with a first light transmissive area, the touch layer is provided with a second light transmissive area, the first light transmissive area and the The second light transmitting area corresponds to the top and bottom.
根据权利要求 5所述的一种触摸板， 其特征在于， 所述第一透光区域 呈十字状。 A touch panel according to claim 5, wherein the first light transmitting region has a cross shape.
根据权利要求 1-6任一所述的一种触摸板， 其特征在于， 所述触摸板 还包括壳体， 所述玻璃层、 所述触摸层、 所述导光层及所述 PCB层安 装于所述壳体中。 The touch panel according to any one of claims 1 to 6, wherein the touch panel further comprises a housing, the glass layer, the touch layer, the light guiding layer and the PCB layer are mounted. In the housing.
根据权利要求 7所述的一种触摸板， 其特征在于， 所述壳体的内侧壁 设有凸缘， 所述凸缘朝内的外边沿围成内中空结构， 所述导光层内嵌 于所述内中空结构中， 所述 PCB层设于所述凸缘的下端面， 所述触摸 层及所述玻璃层设于所述凸缘的上端面。 The touch panel according to claim 7, wherein the inner side wall of the casing is provided with a flange, and the inner edge of the flange is enclosed by an inner hollow structure, and the light guiding layer is embedded In the inner hollow structure, the PCB layer is disposed on a lower end surface of the flange, and the touch layer and the glass layer are disposed on an upper end surface of the flange.
根据权利要求 8所述的一种触摸板， 其特征在于， 所述壳体的上端幵 口， 所述玻璃层内嵌于所述幵口中， 所述玻璃层的上端面与所述幵口 的上端面持平。 The touch panel according to claim 8, wherein the upper end of the casing is open, the glass layer is embedded in the mouth, and the upper end surface of the glass layer and the mouth of the glass are The upper end face is flat.
根据权利要求 8所述的一种触摸板， 其特征在于， 所述内中空结构的 形状与导光层的形状相同。 A touch panel according to claim 8, wherein the shape of the inner hollow structure is the same as the shape of the light guiding layer.
PCT/CN2017/071465 2016-03-17 2017-01-18 Touch panel WO2017157101A1 (en)

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CN205721687U (en) * 2016-03-17 2016-11-23 丰唐物联技术（深圳）有限公司 A kind of touch pad

Citations (3)

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Publication number Priority date Publication date Assignee Title
CN202041931U (en) * 2011-03-25 2011-11-16 佛山市顺德区美的电热电器制造有限公司 Backlight display device for touch keystrokes of electromagnetic oven
CN203788263U (en) * 2014-01-10 2014-08-20 惠州天阳精密科技有限公司 Light guide structure of touch switch panel
CN205721687U (en) * 2016-03-17 2016-11-23 丰唐物联技术（深圳）有限公司 A kind of touch pad

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202041931U (en) * 2011-03-25 2011-11-16 佛山市顺德区美的电热电器制造有限公司 Backlight display device for touch keystrokes of electromagnetic oven
CN203788263U (en) * 2014-01-10 2014-08-20 惠州天阳精密科技有限公司 Light guide structure of touch switch panel
CN205721687U (en) * 2016-03-17 2016-11-23 丰唐物联技术（深圳）有限公司 A kind of touch pad

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