TWM527573U - A pressure-sensitive input device - Google Patents

A pressure-sensitive input device Download PDF

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Publication number
TWM527573U
TWM527573U TW105206649U TW105206649U TWM527573U TW M527573 U TWM527573 U TW M527573U TW 105206649 U TW105206649 U TW 105206649U TW 105206649 U TW105206649 U TW 105206649U TW M527573 U TWM527573 U TW M527573U
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Taiwan
Prior art keywords
pressure sensing
strain
pressure
sensing unit
unit
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TW105206649U
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Chinese (zh)
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李裕文
陳風
蔣承忠
牟方勝
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宸鴻科技（廈門）有限公司
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Publication of TWM527573U publication Critical patent/TWM527573U/en

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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
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • G06F3/04144—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position using an array of force sensing means

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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)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The invention provides a pressure-sensitive input device, which includes a cover plate, a support layer and a pressure-sensitive input module deposited between the cover plate and the support layer. The pressure-sensitive input module includes a substrate and a first pressure-sensitive layer and a second pressure-sensitive layer disposed on the top surface and the bottomsurface of the substrate. The first pressure-sensitive layer includes at least a first pressure-sensitive unit and the second pressure-sensitive layer includes at least a second pressure-sensitive unit. The first pressure-sensitive layer and the second pressure-sensitive layer are deposited correspondingly and comprise the same material. The cover plate and the pressure-sensitive input module are connected to a first adhesion layer, and the pressure-sensitive input module and the support layer are connected to a second adhesion layer. The average ratio of Young's module of the substrate compared to the first adhesive layer or the second adhesive layer is larger than 10.

Description

一種壓力感測輸入裝置 Pressure sensing input device

本新型是關於壓力感測領域，特別是關於一種壓力感測輸入裝置。 The present invention relates to the field of pressure sensing, and more particularly to a pressure sensing input device.

隨著近年來觸控輸入技術不斷進步，平面觸控面板已經成為輸入裝置的首選產品。近期來，一種帶來全新觸控體驗的壓力感測裝置在觸控輸入裝置領域引發了一股熱潮，這種壓力感測裝置可以通過偵測按壓後壓力感測單元的阻值變化大小，而判定按壓力度的大小，其可以單獨應用於僅需偵測壓力大小的觸控輸入裝置領域，還可以與傳統平面觸控面板結合而兼顧二維座標和三維觸壓力度的檢測。 With the continuous advancement of touch input technology, flat touch panels have become the first choice for input devices. Recently, a pressure sensing device that brings a new touch experience has caused a boom in the field of touch input devices. This pressure sensing device can detect the change in the resistance of the pressure sensing unit after pressing. The size of the pressing force is determined, which can be separately applied to the field of the touch input device that only needs to detect the pressure, and can also be combined with the traditional flat touch panel to take into consideration the detection of the two-dimensional coordinate and the three-dimensional contact pressure.

但是由於壓力感測電極材料的限制，現有的材料中不可避免地會受到受環境溫度影響，例如常用按壓物體--手指的溫度的影響，產生一定阻值的變化，而由溫度變化所帶來的阻值變化極大地影響了壓力感測電極對按壓力度大小的檢測，甚至還可能存在因溫度產生的阻值變化遠大於因按壓力度大小而產生的阻值變化量，而導致壓力阻值變化檢測不精准甚至無法檢測。 However, due to the limitation of the pressure sensing electrode material, the existing materials are inevitably affected by the ambient temperature, such as the temperature of the commonly used pressing object--the finger, which causes a certain resistance change, which is brought about by the temperature change. The change of the resistance value greatly affects the detection of the pressure of the pressure sensing electrode, and there may even be a change in the resistance value due to the temperature, which is much larger than the resistance change due to the magnitude of the pressing force, resulting in a change in the pressure resistance value. The detection is not accurate or even impossible to detect.

為解決上述技術問題，本新型中提供了一種具有溫度補 償功能的壓力感測輸入裝置，包含：一蓋板；一支撐層；一壓力感測輸入模組，設置於蓋板與支撐層之間，壓力感測輸入模組包含一基板及分別設置在基板上下表面的一第一壓感層、一第二壓感層，第一壓感層包含至少一個第一壓感單元，第二壓感層包含至少一個第二壓感單元，第一壓感單元與第二壓感單元一一對應設置且材料相同；蓋板與壓力感測輸入模組之間以第一貼合層相接合，壓力感測輸入模組與支撐層之間以第二貼合層相接合；其中基板的楊氏模數與第一貼合層、第二貼合層的楊氏模數的比值大於10。 In order to solve the above technical problems, the present invention provides a temperature compensation The pressure sensing input device comprises: a cover plate; a support layer; a pressure sensing input module disposed between the cover plate and the support layer, the pressure sensing input module comprises a substrate and is respectively disposed at a first pressure sensitive layer and a second pressure sensitive layer on the upper and lower surfaces of the substrate, the first pressure sensitive layer comprises at least one first pressure sensitive unit, and the second pressure sensitive layer comprises at least one second pressure sensitive unit, the first pressure sensitive layer The unit and the second pressure sensing unit are arranged one by one and have the same material; the cover and the pressure sensing input module are joined by the first bonding layer, and the pressure sensing input module and the supporting layer are secondly attached. The layer is joined; wherein the ratio of the Young's modulus of the substrate to the Young's modulus of the first bonding layer and the second bonding layer is greater than 10.

10‧‧‧壓力感測輸入模組 10‧‧‧ Pressure Sensing Input Module

212‧‧‧第二壓感單元 212‧‧‧Second pressure sensing unit

11‧‧‧基板 11‧‧‧Substrate

12‧‧‧第一壓感層 12‧‧‧First pressure sensitive layer

13‧‧‧第二壓感層 13‧‧‧Second pressure sensitive layer

20‧‧‧壓力感測輸入裝置 20‧‧‧ Pressure sensing input device

21‧‧‧壓力感測輸入模組 21‧‧‧ Pressure Sensing Input Module

22‧‧‧第一貼合層 22‧‧‧First bonding layer

23‧‧‧第二貼合層 23‧‧‧Second bonding layer

24‧‧‧蓋板 24‧‧‧ Cover

25‧‧‧支撐層 25‧‧‧Support layer

40‧‧‧壓力感測輸入裝置 40‧‧‧ Pressure sensing input device

42‧‧‧第一壓感層 42‧‧‧First pressure sensitive layer

50‧‧‧壓力感測輸入裝置 50‧‧‧ Pressure sensing input device

51‧‧‧基板 51‧‧‧Substrate

52‧‧‧第一壓感層 52‧‧‧First pressure sensitive layer

53‧‧‧第二壓感層 53‧‧‧Second pressure sensitive layer

60‧‧‧壓力感測輸入裝置 60‧‧‧ Pressure sensing input device

121‧‧‧第一壓感單元 121‧‧‧First pressure sensing unit

131‧‧‧第二壓感單元 131‧‧‧Second pressure sensing unit

201‧‧‧基板 201‧‧‧Substrate

202‧‧‧第一壓感單元 202‧‧‧First pressure sensing unit

203‧‧‧第二壓感單元 203‧‧‧Second pressure sensing unit

211‧‧‧第一壓感單元 211‧‧‧First pressure sensing unit

221‧‧‧第一貼合層 221‧‧‧ first bonding layer

222‧‧‧第二貼合層 222‧‧‧Second bonding layer

421‧‧‧第一壓感單元 421‧‧‧First pressure sensing unit

421c‧‧‧第一壓感單元 421c‧‧‧First pressure sensing unit

421d‧‧‧第一壓感單元 421d‧‧‧First pressure sensing unit

421e‧‧‧第一壓感單元 421e‧‧‧First pressure sensing unit

421f‧‧‧第一壓感單元 421f‧‧‧First pressure sensing unit

421g‧‧‧第一壓感單元 421g‧‧‧First pressure sensing unit

521‧‧‧第一壓感單元 521‧‧‧First pressure sensing unit

531‧‧‧第二壓感單元 531‧‧‧Second pressure sensing unit

621‧‧‧第一壓感單元 621‧‧‧First pressure sensing unit

631‧‧‧第二壓感單元 631‧‧‧Second pressure sensing unit

S中‧‧‧方向 S in the direction ‧‧‧

S角‧‧‧方向 S corner ‧ ‧ direction

S短‧‧‧方向 S short ‧ ‧ direction

S長‧‧‧方向 S long ‧ ‧ direction

La‧‧‧長度 La‧‧‧ Length

a‧‧‧方向 A‧‧‧direction

b‧‧‧方向 B‧‧‧direction

c‧‧‧方向 C‧‧‧direction

Ra‧‧‧第一參考電阻 Ra‧‧‧First reference resistor

Rb‧‧‧第二參考電阻 Rb‧‧‧second reference resistor

第1A圖是本新型第一實施例壓力感測輸入模組中的層狀結構示意圖。 FIG. 1A is a schematic view showing a layered structure in the pressure sensing input module of the first embodiment of the present invention.

第1B圖是第1A圖中壓力信號偵測原理圖。 Figure 1B is a schematic diagram of pressure signal detection in Figure 1A.

第1C圖是第1A圖中另一壓力信號偵測原理圖。 Figure 1C is a schematic diagram of another pressure signal detection in Figure 1A.

第2A圖是本新型第二實施例壓力感測輸入裝置的層狀結構示意圖。 2A is a schematic view showing the layered structure of the pressure sensing input device of the second embodiment of the present invention.

第2B圖是第2A圖中所示壓力感測輸入裝置受到按壓力後變形的結構示意圖。 Fig. 2B is a structural schematic view showing the deformation of the pressure sensing input device shown in Fig. 2A after being pressed.

第2C圖是第2B圖中所示壓力感測輸入裝置受到按壓力後的各層應變數的走勢圖。 Fig. 2C is a graph showing the number of strains of the respective layers after the pressure sensing input device shown in Fig. 2B is pressed.

第3A圖是本新型第二實施例中第一壓感單元與第二壓感單元的應變差與貼合層的楊氏模數的關係示意圖。 Fig. 3A is a view showing the relationship between the strain difference between the first pressure sensitive unit and the second pressure sensitive unit and the Young's modulus of the bonding layer in the second embodiment of the present invention.

第3B圖是本新型第二實施例中第一壓感單元與第二壓感單元的應變差與貼合層的楊氏模數的另一關係示意圖。 Fig. 3B is a schematic view showing another relationship between the strain difference of the first pressure sensitive unit and the second pressure sensitive unit and the Young's modulus of the bonding layer in the second embodiment of the present invention.

第3C圖是本新型第二實施例中第一壓感單元與第二壓感單元的應 變差與貼合層的厚度的關係示意圖。 3C is a view of the first pressure sensing unit and the second pressure sensing unit in the second embodiment of the present invention A schematic diagram of the relationship between the variation and the thickness of the conforming layer.

第3D圖是本新型第二實施例中第一壓感單元與第二壓感單元的應變差與基板的厚度的關係示意圖。 FIG. 3D is a schematic diagram showing the relationship between the strain difference between the first pressure sensitive unit and the second pressure sensitive unit and the thickness of the substrate in the second embodiment of the present invention.

第4圖是本新型第四實施例壓力感測輸入裝置的第一壓感層的平面結構示意圖。 4 is a plan view showing the planar structure of the first pressure sensitive layer of the pressure sensing input device of the fourth embodiment of the present invention.

第5A圖是本新型第四實施例壓力感測輸入裝置的第一壓感層及其按壓區域的平面示意圖。 FIG. 5A is a plan view showing a first pressure sensitive layer and a pressing area thereof of the pressure sensing input device of the fourth embodiment of the present invention.

第5B圖-第5E圖是第5A圖中A-D處按壓區域的應變示意圖。 Fig. 5B - Fig. 5E are schematic diagrams showing the strain of the pressing region at A-D in Fig. 5A.

第6A圖是第4圖中單個第一壓感單元的平面結構示意圖。 Fig. 6A is a plan view showing the structure of a single first pressure sensitive unit in Fig. 4.

第6B圖是第6A圖中的第一壓感單元的a方向與b方向的長度及長軸方向的示意圖。 Fig. 6B is a schematic view showing the length in the a direction and the b direction and the long axis direction of the first pressure sensitive unit in Fig. 6A.

第6C圖-第6G圖是第4圖中單個第一壓感單元的變形實施方式結構示意圖。 6C to 6G are structural schematic views of a modified embodiment of a single first pressure sensitive unit in Fig. 4.

第7A圖-第7B圖是本新型第五實施例所示無方向性的金屬網格材料的網格圖案示意圖。 7A to 7B are schematic diagrams showing a grid pattern of the non-directional metal mesh material shown in the fifth embodiment of the present invention.

第7C圖-第7F圖是本新型第五實施例所示有方向性的金屬網格材料的網格圖案示意圖。 7C-VIIF is a schematic view of a grid pattern of the directional metal mesh material shown in the fifth embodiment of the present invention.

第8A圖是本新型第五實施例壓力感測輸入裝置中第一壓感層、基板、第二壓感層的剖面結構示意圖。 FIG. 8A is a cross-sectional structural diagram of a first pressure sensitive layer, a substrate, and a second pressure sensitive layer in the pressure sensing input device of the fifth embodiment of the present invention.

第8B圖是第8A圖中所示結構的應變-厚度關係圖。 Fig. 8B is a graph showing the strain-thickness relationship of the structure shown in Fig. 8A.

第8C圖是第8A圖所示壓力感測輸入裝置的第一壓感層上第一壓感單元所在區域的最大應變方向。 Fig. 8C is the maximum strain direction of the region where the first pressure sensitive unit is located on the first pressure sensitive layer of the pressure sensing input device shown in Fig. 8A.

第8D圖是與第8A圖中所示第二壓感層上與第一壓感單元對應設置的第二壓感單元所在區域的最大應變方向。 8D is a maximum strain direction of a region where the second pressure sensitive unit is disposed corresponding to the first pressure sensitive unit on the second pressure sensitive layer shown in FIG. 8A.

為了使本新型的目的，技術方案及優點更加清楚明白，以下結合附圖及實施實例，對本新型進行進一步詳細說明。應當理解，此處所描述的具體實施例僅僅用以解釋本新型，並不用於限定本新型。 In order to make the present invention, the technical solutions and advantages are more clearly understood, 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.

請參閱第1A圖，本新型第一實施例中提供一壓力感測輸入模組10，其包含一基板11及分別位於基板11上下(本新型中，上下位置詞僅用於限定指定視圖上的相對位置)表面的第一壓感層12與第二壓感層13。第一壓感層12上設置有至少一個第一壓感單元121，第二壓感層13上設置有至少一個第二壓感單元131，至少一個第一壓感單元121與至少一個第二壓感單元131為一一對應設置，其中，本新型中的一一對應是指各第一壓感單元121及各第二壓感單元131在基板11上下表面的數量及分佈位置上的一一對應，而各第一壓感單元121及各第二壓感單元131的圖案形狀則不受限制。當基板11受到按壓時，此按壓點處對應的至少一個第一壓感單元121與至少一個第二壓感單元131將受到壓力。 Referring to FIG. 1A , a pressure sensing input module 10 is provided in the first embodiment of the present invention, and includes a substrate 11 and is respectively located above and below the substrate 11 (in the present invention, the upper and lower position words are only used to define a specified view). The first pressure sensitive layer 12 and the second pressure sensitive layer 13 of the surface are oppositely positioned. The first pressure sensitive layer 12 is provided with at least one first pressure sensing unit 121, and the second pressure sensitive layer 13 is provided with at least one second pressure sensing unit 131, at least one first pressure sensing unit 121 and at least one second pressure. The sensing units 131 are arranged in a one-to-one correspondence, wherein the one-to-one correspondence in the present invention refers to the one-to-one correspondence between the number and distribution positions of the upper and lower surfaces of the substrate 11 of each of the first pressure sensing units 121 and the second pressure sensing units 131. The pattern shape of each of the first pressure sensitive unit 121 and each of the second pressure sensitive units 131 is not limited. When the substrate 11 is pressed, the corresponding at least one first pressure sensing unit 121 and the at least one second pressure sensing unit 131 at the pressing point will be subjected to pressure.

第一壓感單元121和第二壓感單元131，因受按壓而引起變形、偏轉或剪切等應變性反應，從而導致至少一個電性能發生改變，特別的，當第一壓感單元121與第二壓感單元131均由一壓阻結構以一導線的形式彎折而成，當按壓後致使相應區域的第一壓感單元121和第二壓感單元131的導線長度發生變化，進而影響第一壓感單元121與第二壓感單元131的阻值。 The first pressure sensing unit 121 and the second pressure sensing unit 131 cause a strain reaction such as deformation, deflection or shear due to pressing, thereby causing at least one electrical property to change, in particular, when the first pressure sensing unit 121 and The second pressure sensing units 131 are each bent by a piezoresistive structure in the form of a wire. When pressed, the lengths of the wires of the first pressure sensing unit 121 and the second pressure sensing unit 131 of the corresponding regions are changed, thereby affecting The resistance values of the first pressure sensing unit 121 and the second pressure sensing unit 131.

在一個較佳的實施方式中，第一壓感單元121和第二壓感單元131的材料相同，第一壓感單元121與第二壓感單元131圖案形狀 的面積為25mm2至225mm2，較佳為25mm2至100mm2。由於常用施力物體(電容筆或手指)以及正常施力大小(0-10N)而言，可以被壓感電極(如第一壓感單元121與第二壓感單元131)有效偵測出的形變範圍，大概會25mm2至225mm2的範圍內，而手指等常見的具有溫度的施力物體在按壓後，其影響的範圍大至也在上述的範圍內，所述範圍更佳為小於100mm2。因而本實施方式中的至少一個放射狀感壓電極21的大小為25mm2至225mm2，更佳為25mm2至100mm2，以與一正常成人手指的力和溫度作用範圍相匹配。然而在另外的實施方式中，習知技藝者當可根據施力物體和作用力大小不同而訂定不同的感應範圍。 In a preferred embodiment, the materials of the first pressure sensing unit 121 and the second pressure sensing unit 131 are the same, and the area of the first pressure sensing unit 121 and the second pressure sensing unit 131 is 25 mm 2 to 225 mm 2 . It is preferably 25 mm 2 to 100 mm 2 . Due to the commonly applied force object (capacitive pen or finger) and the normal force application size (0-10N), the pressure sensitive electrode (such as the first pressure sensing unit 121 and the second pressure sensing unit 131) can be effectively detected. The deformation range is approximately in the range of 25 mm 2 to 225 mm 2 , and the common temperature-applying force-applying object such as a finger, after being pressed, has a range of influence that is also within the above range, and the range is more preferably less than 100 mm. 2 . Thus, at least one of the radial pressure sensitive electrodes 21 in the present embodiment has a size of 25 mm 2 to 225 mm 2 , more preferably 25 mm 2 to 100 mm 2 , to match the force and temperature range of action of a normal adult finger. However, in other embodiments, the skilled artisan can specify different sensing ranges depending on the force applied object and the magnitude of the force.

基板11可包含但不受限於：剛性基板，如玻璃，強化玻璃，藍寶石玻璃等；也可以是柔性基板，如聚醚醚酮PEEK(polyetheretherketone；PEEK)、聚醯亞胺(Polyimide；PI)、聚對苯二甲酸乙二醇酯(polyethylene terephthalate；PET)、聚碳酸酯聚碳酸酯(polycarbonate；PC)、聚丁二酸乙二醇酯(polyethylene glycol succinate；PES)、聚甲基丙烯酸甲(polymethylmethacrylate；PMMA)、聚氯乙烯(Polyvinyl chloride；PVC)、聚丙烯(Polypropylene；PP)及其任意兩者的複合物等材料。 The substrate 11 may include, but is not limited to, a rigid substrate such as glass, tempered glass, sapphire glass, etc., or a flexible substrate such as polyetheretherketone (PEEK) or polyimide (PI). , polyethylene terephthalate (PET), polycarbonate polycarbonate (PC), polyethylene glycol succinate (PES), polymethyl methacrylate (polymethylmethacrylate; PMMA), polyvinyl chloride (PVC), polypropylene (PP), and a composite of any two of them.

本新型第一實施例提供的壓力感測輸入模組10中各第一壓感單元121對應的內阻為RF0，RF1，RF2……RFn，當接受按壓力時，各第一壓感單元121所對應的內阻RF0，RF1，RF2……RFn阻值會發生變化；壓力感測輸入模組10中各第二壓感單元131對應的內阻為RC0，RC1，RC2……RCn，其分別與RF0，RF1，RF2……RFn一一對應設置在基板11兩側，當接受按壓力時，各第二壓感單元131所對應的內阻RC0，RC1，RC2……RCn阻值也會發生變化。在本新型中，第一壓感單元121 導線的兩端分別電性連接至一信號處理中心(圖未示)，第二壓感單元131導線的兩端分別電性連接至相同的信號處理中心(圖未示)，此信號處理中心進一步包含第一參考電阻Ra、第二參考電阻Rb及一多工器。通過多工器的控制，依序使各第一壓感單元121電阻RFn(其中，n=0，1，2…n)、與之對應設置的第二壓感單元電阻131RCn(其中，n=0，1，2…n)與電阻Ra、電阻Rb構成惠斯同電橋。 The internal resistance of each of the first pressure sensing units 121 in the pressure sensing input module 10 provided by the first embodiment of the present invention is R F0 , R F1 , R F2 , ... R Fn , when receiving the pressing force, each first The internal resistances R F0 , R F1 , R F2 . . . R Fn corresponding to the pressure sensing unit 121 may change; the internal resistance of each second pressure sensing unit 131 in the pressure sensing input module 10 is R C0 . R C1 , R C2 . . . R Cn are respectively disposed on the two sides of the substrate 11 in a one-to-one correspondence with R F0 , R F1 , R F2 , . . . R Fn , respectively. When the pressing force is received, each of the second pressure sensing units 131 corresponds to The internal resistances R C0 , R C1 , R C2 ... R Cn also change in resistance. In the present invention, the two ends of the first pressure sensing unit 121 are electrically connected to a signal processing center (not shown), and the two ends of the second pressure sensing unit 131 are electrically connected to the same signal processing center. (not shown), the signal processing center further includes a first reference resistor Ra, a second reference resistor Rb, and a multiplexer. Through the control of the multiplexer, each of the first pressure sensing units 121 has a resistance R Fn (where n=0, 1, 2...n), and a second pressure sensitive unit resistance 131R Cn corresponding thereto (where n=0, 1, 2...n) and the resistance Ra and the resistor Rb constitute a Wheatstone bridge.

如第1B圖與第1C圖所示，電阻RF0、電阻RC0、第一參考電阻Ra、第二參考電阻Rb的連接方式可以有兩種。如第1B圖所示，電阻RF0的一端電性連接於一電源正極端VEX+，另一端與第一參考電阻Ra串聯；電阻RC0的一端電性連接於同樣的電源正極端VEX+，另一端與第二參考電阻Rb串聯；第一參考電阻Ra、第二參考電阻Rb另一端電性連接於電源負極端VEX-(或接地)，一電壓計用於測量電阻RF0、電阻RC0的電勢差信號U0。或如第1C圖所示，電阻RF0的一端電性連接於一電源正極端VEX+，另一端與電阻RC0串聯；第一參考電阻Ra的一端電性連接於同樣的電源正極端VEX+，另一端與第二參考電阻Rb串聯；電阻RC0、第二參考電阻Rb的另一端電性連接於電源負極端VEX-(或接地)一電壓計用於測量電阻RF0、第一參考電阻Ra的電勢差信號U0。 As shown in FIG. 1B and FIG. 1C, there are two types of connection of the resistor R F0 , the resistor R C0 , the first reference resistor Ra, and the second reference resistor Rb. As shown in FIG. 1B, one end of the resistor R F0 is electrically connected to a positive terminal VEX+ of the power supply, and the other end is connected in series with the first reference resistor Ra; one end of the resistor R C0 is electrically connected to the same positive terminal VEX+ of the power supply, and the other end is The first reference resistor Ra and the second reference resistor Rb are electrically connected to the negative terminal VEX- (or ground) of the power supply, and a voltmeter is used to measure the potential difference between the resistor R F0 and the resistor R C0 . Signal U0. Or as shown in FIG. 1C, one end of the resistor R F0 is electrically connected to a positive terminal VEX+ of the power supply, and the other end is connected in series with the resistor R C0 ; one end of the first reference resistor Ra is electrically connected to the same positive terminal VEX+ of the power supply, and One end is connected in series with the second reference resistor Rb; the other end of the resistor R C0 and the second reference resistor Rb is electrically connected to the negative terminal VEX- (or ground) of the power supply. A voltmeter is used to measure the resistance R F0 and the first reference resistor Ra. Potential difference signal U0.

在無按壓力作用時，各惠斯同電橋處於平衡狀態。當受到按壓力作用時，對應位置處的一個或多個第一壓感單元121和對應設置的第二壓感單元131阻值改變，惠斯同電橋平衡被打破而導致輸出電勢差信號U0必定發生變化，不同的壓力對應不同阻值的改變，相應也會產生不同的電勢差信號，故，通過對惠斯同電橋的電勢差信號U0進行計算及處理即可以得出相應的壓力值。 When there is no pressing force, each Wheatstone is in equilibrium with the bridge. When subjected to the pressing force, the resistance values of the one or more first pressure sensing units 121 and the corresponding second pressure sensing units 131 at the corresponding positions are changed, and the balance of the Wheatstone and the bridge is broken to cause the output potential difference signal U0 to be determined. Changes occur, different pressures correspond to different resistance values, and different potential difference signals are generated accordingly. Therefore, the corresponding pressure value can be obtained by calculating and processing the potential difference signal U0 of the Wheatstone bridge.

如第1B圖中所示，電阻RF0、電阻RC0、電阻Ra與電阻Rb阻構成惠斯同電橋，其關係可表示為： 如第1C圖中所示，電阻RF0、電阻RC0、電阻Ra與電阻Rb阻構成惠斯同電橋，其關係可表示為： 本新型第一實施例中壓力感測輸入模組10中，電阻與溫度變化的關係可通過如下公式推導得到：物體的電阻R的計算公式為：R=ρ L/S (1)；其中，ρ表示為組成第一壓感單元121、第二壓感單元131的材料的電阻率，L為本新型中第一壓感單元121、第二壓感單元131的長度，S為第一壓感單元121、第二壓感單元131電流方向的橫截面積。 As shown in FIG. 1B, the resistor R F0 , the resistor R C0 , the resistor Ra and the resistor Rb form a Wheatstone bridge, and the relationship can be expressed as: As shown in FIG. 1C, the resistor R F0 , the resistor R C0 , the resistor Ra and the resistor Rb form a Wheatstone bridge, and the relationship can be expressed as: In the pressure sensing input module 10 of the first embodiment of the present invention, the relationship between the resistance and the temperature change can be derived by the following formula: the calculation formula of the resistance R of the object is: R = ρ L / S (1); ρ is the resistivity of the material constituting the first pressure sensitive unit 121 and the second pressure sensitive unit 131, L is the length of the first pressure sensitive unit 121 and the second pressure sensitive unit 131, and S is the first pressure sensitive feeling. The cross-sectional area of the unit 121 and the second pressure sensing unit 131 in the direction of current flow.

本新型中組成第一壓感單元121、第二壓感單元131的材料的電阻率ρ隨溫度變化的公式為：ρ T=ρ(1+α T) (2)；其中，ρ為組成第一壓感單元121、第二壓感單元131的材料的電阻率，α為電阻的溫度係數，T為溫度。 The formula of the resistivity ρ of the material constituting the first pressure sensing unit 121 and the second pressure sensing unit 131 as a function of temperature in the present invention is: ρ T = ρ (1+ α T) (2); wherein ρ is the composition The resistivity of the material of the pressure sensitive unit 121 and the second pressure sensitive unit 131, α is the temperature coefficient of the resistance, and T is the temperature.

結合上述式(1)與式(2)：當環境溫度為T0時(如T=0)時，物體的電阻值為：RT0=ρ L/S (3)； 當環境溫度為T1時，物體的電阻值為：RT1=ρL/S(1+α(T1-T0)) (4)；由上述的式(1)-式(4)可以推導出材料電阻值受溫度影響的△RT可表示為如下式(5)：△RT=RT1-RT0=ρL/S(1+α(T1-T0))-ρL/S=α △T(ρ L/S)=△Tα．R (5)；其中，△T表示溫度變化量。 Combining the above formulas (1) and (2): when the ambient temperature is T0 (such as T=0), the resistance value of the object is: R T0 = ρ L/S (3); When the ambient temperature is T1, The resistance value of the object is: R T1 = ρL / S (1 + α (T1 - T0)) (4); From the above formula (1) - formula (4), it can be deduced that the material resistance value is affected by temperature ΔR T can be expressed as the following equation (5): ΔR T = R T1 - R T0 = ρL / S (1 + α (T1 - T0)) - ρL / S = α ΔT ( ρ L / S) = ΔTα . R (5); wherein ΔT represents the amount of temperature change.

本新型第一實施例所提供的壓力感測輸入模組10中，惠斯同電橋中RF0、RC0、Ra與Rb的關係表示如上述式(Q)及式(P)所示。 In the pressure sensing input module 10 provided in the first embodiment of the present invention, the relationship between R F0 , R C0 , Ra and Rb in the Wheatstone bridge is expressed as shown in the above formulas (Q) and (P).

以式(Q)為例，當溫度變化(溫度變化量表示為△T)時，第一壓感單元121與其位置對應設置的第二壓感單元131的電阻變化量分別如式(6)及式(7)中所示：△R F0=△T α ×R F0 (6)；△R C0=△T α ×R C0 (7)；由上述式(1)-式(8)，可以得出第一壓感單元121與其位置對應設置的第二壓感單元131的電阻變化表示如式(8)所示： 由式(9)可以看出，第一壓感單元121與第二壓感單元131由同種材料構成，在相同的溫度變化量，式(8)還可進一步得出式(9)： 從上述式(9)可以看出，根據溫度傳導的特性來看，相同材料在相同的溫度變化量△T的影響下，其溫度係數α是相同的，當第一壓感單元121與第二壓感單元131採用相同的材料，在電阻值測量的過程中，溫度對第一壓感單元121及第二壓感單元131電阻值的變化量△RF0與△RC0可通過式(9)中所示的方式相互抵消，因此，溫度對壓力感測輸入模組10的影響為零。 Taking the formula (Q) as an example, when the temperature changes (the amount of temperature change is expressed as ΔT), the resistance change amount of the second pressure sensitive unit 131 corresponding to the position of the first pressure sensitive unit 121 and the position thereof is respectively expressed by the formula (6) and In the formula (7): Δ R F 0 = Δ T α × R F 0 (6); Δ R C 0 = Δ T α × R C 0 (7); from the above formula (1) - formula (8 It can be concluded that the resistance change of the second pressure sensitive unit 131 corresponding to the position of the first pressure sensing unit 121 and its position is expressed as shown in the formula (8): It can be seen from the formula (9) that the first pressure sensitive unit 121 and the second pressure sensitive unit 131 are composed of the same material, and the formula (9) can further yield the formula (9) at the same temperature change amount: It can be seen from the above formula (9) that, according to the characteristics of temperature conduction, the temperature coefficient α of the same material is the same under the influence of the same temperature change amount ΔT, when the first pressure sensing unit 121 and the second The pressure sensing unit 131 adopts the same material. During the measurement of the resistance value, the amount of change ΔR F0 and ΔR C0 of the resistance values of the first pressure sensing unit 121 and the second pressure sensing unit 131 can pass the formula (9). The manners shown are mutually offset, so the effect of temperature on the pressure sensing input module 10 is zero.

以式(P)為例，其與式(Q)在溫度變化量為△T時的區別在於： 其中，式(10)的具體推導過程與式(8)及式(9)相同，故，在此不再贅述。 Taking the formula (P) as an example, the difference between the formula (Q) and the temperature change amount is ΔT is: The specific derivation process of the formula (10) is the same as the formula (8) and the formula (9), and therefore, details are not described herein.

從上述式(9)與式(10)的結果可知，第1B圖與第1C圖中所示的惠斯同電橋結構均使溫度對第一壓感單元121及與其對應設置的第二壓感單元131的電阻值影響為零，從而實現完全溫度補償。 It can be seen from the results of the above formulas (9) and (10) that both the Wheatstone and the bridge structures shown in FIG. 1B and FIG. 1C have the temperature applied to the first pressure sensing unit 121 and the second pressure corresponding thereto. The resistance value of the sensing unit 131 has a zero effect, thereby achieving full temperature compensation.

此外，根據力傳導的特性來看，由於第一壓感單元121和第二壓感單元131分設在基板11的上下表面，由於基板11具有一定厚度，因此，基板11在受到按壓作用力後其上下層會有形變差異，進而使設置在其上下表面的第一壓感單元121與第二壓感單元131之間也會產生形變差異。進一步地，不同的按壓力道，其所引起基板11的上下層及第一壓感單元121與第二壓感單元131的形變差異也不相同。 In addition, according to the characteristics of the force transmission, since the first pressure sensing unit 121 and the second pressure sensing unit 131 are disposed on the upper and lower surfaces of the substrate 11, since the substrate 11 has a certain thickness, the substrate 11 is subjected to a pressing force. The upper and lower layers may have a difference in deformation, and a deformation difference may also occur between the first pressure sensitive unit 121 and the second pressure sensitive unit 131 disposed on the upper and lower surfaces thereof. Further, different pressurizing paths cause different deformations of the upper and lower layers of the substrate 11 and the first pressure sensitive unit 121 and the second pressure sensitive unit 131.

當在無按壓力作用時，第1B圖與第1C圖中所示的惠斯同電橋處於平衡狀態。當受到按壓力作用時，第一壓感單元121及/或第 二壓感單元131的一個或多個阻值改變，這樣，惠斯同電橋平衡被打破而導致輸出電信號U0必定發生變化：如觸壓的力道較大，則第一壓感單元121與第二壓感單元131阻值具有較大的變化量；相反地，如果觸壓的力道較小，則第一壓感單元121與第二壓感單元131的阻值具有較小的變化量。不同阻值的改變對應著不同的壓力值，故，通過對惠斯同電橋的輸出信號U0進行計算及處理，即可以得出相應的壓力值。 When there is no pressing force, the Wheatstone bridge shown in Figure 1B and Figure 1C is in equilibrium. When subjected to a pressing force, the first pressure sensing unit 121 and/or the first One or more resistance values of the second pressure sensing unit 131 are changed, so that the balance of the Wheatstone and the bridge is broken, so that the output electrical signal U0 must change: if the force of the touch pressure is large, the first pressure sensing unit 121 and The resistance value of the second pressure sensitive unit 131 has a large amount of change; conversely, if the force of the touch pressure is small, the resistance values of the first pressure sensitive unit 121 and the second pressure sensitive unit 131 have a small amount of change. The change of different resistance values corresponds to different pressure values. Therefore, by calculating and processing the output signal U0 of the Wheatstone bridge, the corresponding pressure value can be obtained.

在本新型中，當各第一壓感單元121和各第二壓感單元131是呈陣列設置於基板11上下表面時，壓力感測輸入模組10可並不僅限於檢測按壓力量的大小，還可以用於同步檢測按壓位置(平面二維)與按壓力量(第三維度)這三維度的信號。按壓後，第一壓感單元121及第二壓感單元131內部的形狀改變引起相應的阻值變化，可以根據計算阻值變化產生的位置和變化量的大小來判斷按壓點位置和按壓力量大小，利用上下對應設置的第一壓感單元121及第二壓感單元131既進行位置檢測(平面二維)又進行力量檢測(第三維度)的計算，從而實現三維度的同時檢測。 In the present invention, when the first pressure sensing unit 121 and each of the second pressure sensing units 131 are arranged in an array on the upper and lower surfaces of the substrate 11, the pressure sensing input module 10 can be not limited to detecting the magnitude of the pressing force. It can be used to synchronously detect the three-dimensional signal of the pressing position (two-dimensional plane) and the pressing force (third dimension). After the pressing, the shape change inside the first pressure sensing unit 121 and the second pressure sensing unit 131 causes a corresponding resistance change, and the position of the pressing point and the pressing force can be determined according to the position and the amount of change generated by calculating the resistance value change. The first pressure sensing unit 121 and the second pressure sensing unit 131 provided correspondingly on the upper and lower sides perform both position detection (planar two-dimensional) and force detection (third dimension), thereby realizing simultaneous detection of three-dimensionality.

為了構成可用於觸控輸入的壓力感測輸入裝置，需要在本新型第一實施例中所提供的壓力感測輸入模組10的基礎上加入其它模組。此外，由於按壓力及其所產生的形變特性，當壓力感測輸入模組10與其它模組進行疊加時，用於粘接各模組的貼合層與壓力感測輸入模組10的厚度、楊氏模數等參數將影響壓力感測輸入模組10對壓力值大小的感測靈敏度及準確度。 In order to form a pressure sensing input device that can be used for touch input, it is necessary to add other modules based on the pressure sensing input module 10 provided in the first embodiment of the present invention. In addition, due to the pressing force and the deformation characteristics thereof, when the pressure sensing input module 10 is superimposed with other modules, the thickness of the bonding layer and the pressure sensing input module 10 for bonding the modules is bonded. The parameters such as Young's modulus will affect the sensing sensitivity and accuracy of the pressure sensing input module 10 for the magnitude of the pressure value.

請參閱第2A圖-第2B圖，本新型第二實施例提供一種壓力感測輸入裝置20，其依次包含一蓋板24、一第一貼合層221，一壓力感測輸入模組21，一第二貼合層222及一支撐層25。壓力感測輸入模組 21與第一實施例提供的壓力感測輸入模組10相似，其包含一基板201及設置在基板201上下表面的第一壓感層202與第二壓感層203，第一壓感層202上包含至少一個第一壓感單元211，第二壓感層203上包含至少一個第二壓感單元212，有關第一壓感單元211與第二壓感單元212的具體結構與本新型第一實施例相同，在此省略不再贅述。 Referring to FIG. 2A - FIG. 2B , the second embodiment of the present invention provides a pressure sensing input device 20 , which in turn comprises a cover 24 , a first bonding layer 221 , and a pressure sensing input module 21 . A second bonding layer 222 and a supporting layer 25. Pressure sensing input module Similar to the pressure sensing input module 10 of the first embodiment, the first embodiment includes a substrate 201 and a first pressure sensitive layer 202 and a second pressure sensitive layer 203 disposed on the upper and lower surfaces of the substrate 201. The first pressure sensitive layer 202 is formed. The at least one first pressure sensing unit 211 is included, and the second pressure sensing layer 203 includes at least one second pressure sensing unit 212. The specific structure of the first pressure sensing unit 211 and the second pressure sensing unit 212 is the first The embodiments are the same and will not be described again here.

蓋板24的材質可以是硬質蓋板，如玻璃、強化玻璃、藍寶石玻璃等；還可以是軟質蓋板，如如聚醚醚酮PEEK(polyetheretherketone；PEEK)、聚醯亞胺(Polyimide；PI)、聚對苯二甲酸乙二醇酯(polyethylene terephthalate；PET)、聚碳酸酯聚碳酸酯(polycarbonate；PC)、聚丁二酸乙二醇酯(polyethylene glycol succinate；PES)、聚甲基丙烯酸甲(polymethylmethacrylate；PMMA)、聚氯乙烯(Polyvinyl chloride；PVC)、聚丙烯(Polypropylene；PP)及其任意兩者的複合物等材料。 The material of the cover plate 24 may be a hard cover plate, such as glass, tempered glass, sapphire glass, etc.; or a soft cover plate, such as polyetheretherketone (PEEK), polyimide (PI), polyimide (PI) , polyethylene terephthalate (PET), polycarbonate polycarbonate (PC), polyethylene glycol succinate (PES), polymethyl methacrylate (polymethylmethacrylate; PMMA), polyvinyl chloride (PVC), polypropylene (PP), and a composite of any two of them.

第一貼合層221及第二貼合層222可以選用光學透明膠(Optical Clear Adhesive；OCA)或液態光學透明膠(Liquid Optical Clear Adhesive；LOCA)。 The first bonding layer 221 and the second bonding layer 222 may be selected from Optical Clear Adhesive (OCA) or Liquid Optical Clear Adhesive (LOCA).

在另外的實施例中，支撐層25可進一步為顯示層，顯示層可包含液晶顯示器(LCD)元件、有機發光二極體(OLED)元件、電致發光顯示器(ELD)等。請參閱第2B圖，當手指按壓蓋板24時，手指按壓所產生的力由上至下逐層傳遞至支撐層25。在手指按壓過程中，應變與組成壓力感測輸入裝置20內各層的厚度、材料有關。在本新型的其中一個實施例中，壓力感測輸入裝置20的厚度為約950μm，手指按壓壓力感測輸入裝置20後，以壓力感測輸入裝置20的上表面表示為厚度的零點，並自上而下對壓力感測輸入裝置20的應變進行測 量，將壓力感測輸入裝置20的厚度及其對應的應變數進行了對比，並繪製獲得如第2C圖中所示的應變(Elastic Strain)-厚度關係圖。 In further embodiments, the support layer 25 may further be a display layer, and the display layer may include a liquid crystal display (LCD) element, an organic light emitting diode (OLED) element, an electroluminescent display (ELD), or the like. Referring to FIG. 2B, when the finger presses the cover 24, the force generated by the finger press is transmitted from the top to the bottom to the support layer 25. During the finger press, the strain is related to the thickness and material of the layers within the composition pressure sensing input device 20. In one embodiment of the present invention, the pressure sensing input device 20 has a thickness of about 950 μm. After the finger presses the pressure sensing input device 20, the upper surface of the pressure sensing input device 20 is represented as a zero point of the thickness, and Measuring the strain of the pressure sensing input device 20 from top to bottom The amount of pressure sensing input device 20 and its corresponding strain number are compared and plotted to obtain an Elastic Strain-thickness relationship as shown in FIG. 2C.

其中，應變數-厚度關係圖是與壓力感測輸入裝置20的整體層疊結構密切相關的，在本實施例中，壓力感測輸入裝置20包含蓋板24、第一貼合層221，壓力感測輸入模組21，第二貼合層222及支撐層25，上述任一層的厚度、楊氏模數等參數的變化，都會對應變數-厚度關係圖中曲線的形態造成影響，因此，如第2C圖中所示的應變數-厚度關係圖僅表示在特定條件下類似結構的大致走勢圖。 The strain-thickness relationship diagram is closely related to the overall laminated structure of the pressure sensing input device 20. In the embodiment, the pressure sensing input device 20 includes a cover plate 24 and a first bonding layer 221, and the pressure sense Measuring the input module 21, the second bonding layer 222 and the supporting layer 25, the thickness of the above layer, the Young's modulus and other parameters change, which will affect the shape of the curve in the variable-thickness relationship diagram, therefore, The strain number-thickness relationship diagram shown in Fig. 2C only shows a general trend diagram of a similar structure under specific conditions.

壓力感測輸入裝置20在受按壓形變後整體具有至少一個中性面(圖未示)，中性面為物體在受力作用下形變為零的平面，在中性面的應變為零，即應變值為零。如第2C圖中Z處所示，Z處所指向的壓力感測輸入裝置20對應層厚度的應變值均為零，Z處對應的壓力感測輸入裝置20的五個中性面分別位於蓋板24、第一貼合層221、壓力感測輸入模組21、第二貼合層222及支撐層25內。壓力感測輸入裝置20內以中性面為分介面，應變值可分為正應變及負應變(此處及以下的正應變、負應變分別表示其形變狀態為拉伸、壓縮)。 The pressure sensing input device 20 has at least one neutral surface (not shown) after being pressed and deformed, and the neutral surface is a plane in which the object becomes zero under the action of the force, and the strain on the neutral surface is zero, that is, The strain value is zero. As shown at Z in FIG. 2C, the pressure sensing input device 20 directed at Z has a strain value corresponding to the layer thickness of zero, and the five neutral faces of the corresponding pressure sensing input device 20 at Z are respectively located on the cover. 24. The first bonding layer 221, the pressure sensing input module 21, the second bonding layer 222, and the support layer 25. The pressure sensing input device 20 has a neutral surface as a component interface, and the strain value can be divided into a positive strain and a negative strain (the positive strain and the negative strain here and below respectively indicate that the deformation state is tensile and compressive).

結合第2B圖與第2C圖可知，當手指按壓時，所對應的壓力感測輸入裝置20上表面(蓋板24的上表面)的應變為1.7225e-5；在蓋板24內，應變逐漸增加，並由負應變-零應變-正應變變化；I處所對應的應變值為蓋板24與第一貼合層221接合面的應變值，接合面的應變達到最高值1.6478e-5；在第一貼合層221內，應變逐漸下降，其變化趨勢為正應變-零應變-負應變；Ⅱ處所對應的應變值為第一貼合層221與壓力感測輸入模組21的接 合面的應變值，接合面的應變為負方向應變且接近於零；在壓力感測輸入模組21內，應變逐步增大，並達到一定值(約5e-5)後，應變大小不隨著厚度的增大而增大；Ⅲ處所對應的應變值為壓力感測輸入模組21與第二貼合層23的接合面的應變值，接合面相應的應變為約5e-5；在第二貼合層222內，應變逐漸下降，其變化趨勢為正應變-零應變-負應變；Ⅳ處所對應的應變值為第二貼合層222與支撐層25的接合面的應變值，接合面相應的應變為約-9.7e-6；在支撐層25內，應變逐漸上升，其變化趨勢為負應變-零應變-正應變。 2B and 2C, when the finger is pressed, the strain on the upper surface of the corresponding pressure sensing input device 20 (the upper surface of the cover 24) is 1.7225e-5; in the cover 24, the strain gradually Increased and changed by negative strain-zero strain-positive strain; the strain value corresponding to I is the strain value of the joint surface of the cover plate 24 and the first bonding layer 221, and the strain of the joint surface reaches the highest value of 1.6478e-5; In the first bonding layer 221, the strain gradually decreases, and the change trend is positive strain-zero strain-negative strain; the corresponding strain value at II is the connection of the first bonding layer 221 and the pressure sensing input module 21. The strain value of the joint surface, the strain of the joint surface is the negative direction strain and close to zero; in the pressure sensing input module 21, the strain is gradually increased, and after reaching a certain value (about 5e-5), the strain does not follow The thickness of the joint is increased by the increase of the thickness; the strain value corresponding to the joint of the pressure sensing input module 21 and the second bonding layer 23 is a strain value of the joint surface of about 5e-5; In the second bonding layer 222, the strain gradually decreases, and the change trend is positive strain-zero strain-negative strain; the strain value corresponding to IV is the strain value of the joint surface of the second bonding layer 222 and the support layer 25, and the joint surface The corresponding strain is about -9.7e-6; in the support layer 25, the strain gradually rises, and the change trend is negative strain-zero strain-positive strain.

可見，壓力感測輸入裝置20中，在第一貼合層22與蓋板24及與壓力感測輸入模組21的接合處，第二貼合層23與壓力感測輸入模組21及與支撐層25的接合處，應變的變化趨勢均發生轉變，使應變由正向負變化或由負向正變化，可見，第一貼合層22與第二貼合層23的設置，使壓力感測輸入裝置20的應變下降，第一貼合層22、第二貼合層23與壓力感測輸入模組21接合，第一貼合層22與第二貼合層23對壓力感測輸入模組21應變減少的影響越小，可使壓力感測輸入模組21的應變值越大。 It can be seen that in the pressure sensing input device 20, at the junction of the first bonding layer 22 and the cover 24 and the pressure sensing input module 21, the second bonding layer 23 and the pressure sensing input module 21 and At the joint of the support layer 25, the change trend of the strain changes, and the strain changes from a positive negative change or a positive negative change. It can be seen that the first adhesive layer 22 and the second adhesive layer 23 are disposed to make a sense of pressure. The strain of the input device 20 is decreased, the first bonding layer 22 and the second bonding layer 23 are joined to the pressure sensing input module 21, and the first bonding layer 22 and the second bonding layer 23 are connected to the pressure sensing input module. The smaller the effect of the group 21 strain reduction, the greater the strain value of the pressure sensing input module 21.

一一對應設置在基板201上下表面的若干個第一壓感單元211與第二壓感單元212的受到按壓力前後的應變差異越大，則其相應的電阻值差異越大，從而獲得對按壓力度大小靈敏度較優的壓力感測輸入裝置20。 The greater the difference in strain between the first and second pressure sensing units 211 and the second pressure sensing unit 212, which are disposed on the upper and lower surfaces of the substrate 201, before and after the pressing force, the greater the difference in the corresponding resistance value, thereby obtaining the pressing force. The pressure sensing input device 20 is superior in magnitude and sensitivity.

在實際應用層面，壓力感測輸入裝置20的前述五層結構 中，因第一貼合層221、第二貼合層222與第一壓感單元211及第二壓感單元層212接合，第一壓感單元211及第二壓感單元層212設置在基板201的上下表面，且第一貼合層221、第二貼合層222及基板201的材料的可選擇性最多，因而在本新型中僅主要對這三者的材料選擇情況予以介紹。 At the practical application level, the aforementioned five-layer structure of the pressure sensing input device 20 The first pressure sensing unit 211 and the second pressure sensing unit layer 212 are bonded to the first pressure sensing unit 211 and the second pressure sensitive unit layer 212, and the first pressure sensing unit 211 and the second pressure sensitive unit layer 212 are disposed on the substrate. The upper and lower surfaces of 201, and the materials of the first bonding layer 221, the second bonding layer 222, and the substrate 201 are most selective. Therefore, in the present invention, only the material selection of the three is mainly described.

請參閱第3A圖，本新型第二實施例所提供的壓力感測輸入裝置20的第一變形中，基板201的楊氏模數E1為73.3GPa，基板201的厚度優選為100μm。貼合層22(其包含第一貼合層221及/或第二貼合層222)的厚度為50μm，貼合層22的楊氏模數E2的範圍為100-3000MPa，基板201的楊氏模數E1比貼合層的楊氏模數E2大至少一個數量級以上，即E1/E2>10；在本變形實施方式中：E1/E224.4；貼合層22的楊氏模數相較於基板201的楊氏模數非常小，可見，貼合層22與基板201的特性相差較大，設置在基板201上的第一壓感單元211與第二壓感單元212的應變大小更易於體現基板201的變化，其應變呈增大趨勢，因此，可以獲得更大的應變差△ε。第一壓感單元211與第二壓感單元212之間的應變差△ε隨著貼合層22的楊氏模數的下降而上升，其中，當貼合層22的楊氏模數為100-1000MPa時，應變差△ε隨著貼合層22的楊氏模數的降低而顯著增加。 Referring to FIG. 3A, in a first variation of the pressure sensing input device 20 according to the second embodiment of the present invention, the Young's modulus E1 of the substrate 201 is 73.3 GPa, and the thickness of the substrate 201 is preferably 100 μm. The thickness of the bonding layer 22 (which includes the first bonding layer 221 and/or the second bonding layer 222) is 50 μm, and the Young's modulus E2 of the bonding layer 22 ranges from 100 to 3000 MPa, and the Young's modulus of the substrate 201 The modulus E1 is at least one order of magnitude larger than the Young's modulus E2 of the bonding layer, that is, E1/E2>10; in the present modified embodiment: E1/E2 24.4; The Young's modulus of the bonding layer 22 is very small compared to the Young's modulus of the substrate 201. It can be seen that the characteristics of the bonding layer 22 and the substrate 201 are largely different, and the first pressure sensing unit disposed on the substrate 201 is different. The strain 211 and the strain magnitude of the second pressure sensing unit 212 are more likely to reflect the change of the substrate 201, and the strain thereof is increasing, and therefore, a larger strain difference Δε can be obtained. The strain difference Δ ε between the first pressure sensitive unit 211 and the second pressure sensitive unit 212 rises as the Young's modulus of the bonding layer 22 decreases, wherein the Young's modulus of the bonding layer 22 is 100. At -1000 MPa, the strain difference Δ ε significantly increases as the Young's modulus of the bonding layer 22 decreases.

經過多次研究，得出結論如下：基板22的楊氏模數為一固定值且至少大於貼合層22的楊氏模數至少一個數量級時，應變差△ε與貼合層22的楊氏模數呈負相關。 After several studies, it is concluded that the Young's modulus of the substrate 22 is a fixed value and at least one order of magnitude greater than the Young's modulus of the bonding layer 22, the strain difference Δε and the Young's layer of the bonding layer 22 The modulus is negatively correlated.

在另外的實施例中，E1/E2的值更優為大於或等於100。 In other embodiments, the value of E1/E2 is more preferably greater than or equal to 100.

請參閱第3B圖，本新型第二實施例所提供的壓力感測輸 入裝置20的第二變形實施方式，其與上述第一變形實施方式相比的區別在於基板201的楊氏模數僅為6000MPa，當貼合層22的楊氏模數為1000-3000MPa時，基板201的楊氏模數E1與貼合層22的楊氏模數E2的比值為2-6，E1/E2值小於10。設置在基板201上的第一壓感單元211與第二壓感單元212的應變大小與貼合層22及基板201均相關，由於貼合層22的楊氏模數與基板201的楊氏模數相差較小，當貼合層22與基板201的性能(如彈性性能)相仿，第一壓感單元211與第二壓感單元212之間應變差變化無規律，可見，當基板201的楊氏模數E1為較小值，且其與貼合層22的楊氏模數E2的比值小於10時，貼合層22的楊氏模數對增加應變差△ε的作用不顯著。 Please refer to FIG. 3B, the pressure sensing input provided by the second embodiment of the present invention A second modified embodiment of the device 20 is different from the first modified embodiment in that the Young's modulus of the substrate 201 is only 6000 MPa, and when the Young's modulus of the bonding layer 22 is 1000-3000 MPa, The ratio of the Young's modulus E1 of the substrate 201 to the Young's modulus E2 of the bonding layer 22 is 2-6, and the E1/E2 value is less than 10. The strain magnitudes of the first pressure sensing unit 211 and the second pressure sensing unit 212 disposed on the substrate 201 are related to both the bonding layer 22 and the substrate 201, due to the Young's modulus of the bonding layer 22 and the Young's mode of the substrate 201. The phase difference is small. When the bonding layer 22 is similar to the performance (such as the elastic property) of the substrate 201, the strain difference between the first pressure sensing unit 211 and the second pressure sensing unit 212 is irregular, and it can be seen that when the substrate 201 is Yang When the modulus E1 is a small value and the ratio of the Young's modulus E2 of the bonding layer 22 is less than 10, the Young's modulus of the bonding layer 22 is not significant for increasing the strain difference Δε.

請參閱第3C圖，本新型第二實施例所提供的壓力感測輸入裝置20的第三變形實施方式，其與上述第一變形實施方式相比的區別在於貼合層22的厚度範圍為25-125μm時，第一壓感單元211與第二壓感單元212的應變差△ε與貼合層22的厚度的變化大小成反比。由於貼合層22會使第一壓感單元211及與其對應設置的第二壓感單元層212的應變值變小，因此，貼合層22越薄，其對第一壓感單元211與第二壓感單元212的影響變小，從而可使應變差△ε越大，但是貼合層22的厚度變化對應變差△ε的影響遠小於貼合層22的楊氏模數對應變差△ε的影響。當貼合層22厚度範圍小於25μm時，由於貼合層22厚度過薄，將無法起到將貼合的作用，使壓力感測輸入裝置20內各層結構之間接合不緊密，而降低壓力感測輸入裝置20的產品品質；而當貼合層22的厚度範圍大於125μm時，由於貼合層22的厚度過大，使得壓力感測輸入裝置20在受到按壓作用力時，第一壓感單元211及與其對應設置的第二壓感單元層212的應變值均變小，由於兩者數值變小，兩者的差值(即 應變差△ε)也會相應變小。 Referring to FIG. 3C , a third modified embodiment of the pressure sensing input device 20 according to the second embodiment of the present invention is different from the first modified embodiment in that the thickness of the bonding layer 22 is 25 . When -125 μm, the strain difference Δ ε of the first pressure sensitive unit 211 and the second pressure sensitive unit 212 is inversely proportional to the magnitude of the change in the thickness of the bonding layer 22 . Since the bonding layer 22 reduces the strain value of the first pressure sensitive unit 211 and the second pressure sensitive unit layer 212 corresponding thereto, the thinner the bonding layer 22 is, the first pressure sensing unit 211 and the first The influence of the second pressure sensing unit 212 becomes small, so that the strain difference Δ ε can be made larger, but the influence of the variation of the thickness of the bonding layer 22 on the variation Δ ε is much smaller than the variation of the Young's modulus of the bonding layer 22 Δ The effect of ε. When the thickness of the bonding layer 22 is less than 25 μm, since the thickness of the bonding layer 22 is too thin, the bonding function cannot be performed, and the bonding between the layers of the pressure sensing input device 20 is not tight, and the pressure is reduced. The product quality of the input device 20 is measured; and when the thickness of the bonding layer 22 is greater than 125 μm, the first pressure sensing unit 211 is subjected to the pressing force when the pressure sensing input device 20 is subjected to the pressing force due to the excessive thickness of the bonding layer 22. And the strain value of the second pressure sensitive unit layer 212 corresponding thereto is smaller, and since the two values become smaller, the difference between the two (ie, The strain difference Δε) will also become smaller accordingly.

請參閱第3D圖，本新型第二實施例所提供的壓力感測輸入裝置20的第四變形實施方式，其與上述第一變形實施方式相比的區別在於基板201的厚度範圍為50-450μm時，第一壓感單元211與第二壓感單元212的應變差△ε與基板201的厚度的變化大小成正比。由於基板201的厚度越大，設置在基板201上下表面的第一壓感單元211與第二壓感單元212的應變差△ε與基板201的應變值正相關，其厚度越大，基板201的應變越大，則應變差△ε也越大。但是基板201太厚會影響基板201上下表面的第一壓感單元211與第二壓感單元212之間的溫度補償效果及設備的整體厚度，因此，當基板201的厚度範圍為50-450μm時，應變差△ε與基板201的厚度正相關。 Referring to FIG. 3D, a fourth modified embodiment of the pressure sensing input device 20 provided by the second embodiment of the present invention is different from the first modified embodiment in that the thickness of the substrate 201 ranges from 50 to 450 μm. The strain difference Δε of the first pressure sensitive unit 211 and the second pressure sensitive unit 212 is proportional to the magnitude of the change in the thickness of the substrate 201. The larger the thickness of the substrate 201, the strain difference Δε of the first pressure sensitive unit 211 and the second pressure sensitive unit 212 disposed on the upper and lower surfaces of the substrate 201 is positively correlated with the strain value of the substrate 201, and the thickness thereof is larger, and the thickness of the substrate 201 is larger. The larger the strain, the larger the strain difference Δε. However, if the substrate 201 is too thick, the temperature compensation effect between the first pressure sensitive unit 211 and the second pressure sensitive unit 212 on the upper and lower surfaces of the substrate 201 and the overall thickness of the device may be affected. Therefore, when the thickness of the substrate 201 ranges from 50 to 450 μm. The strain difference Δε is positively correlated with the thickness of the substrate 201.

當基板201的厚度小於50μm時，由於壓力感測輸入裝置20過薄，使得設置在基板201上下主表面的第一壓感單元211與第二壓感單元212之間的應變差△ε值較小，無法有效感測按壓力度的大小；而當基板的厚度大於450μm時，不僅會使壓力感測輸入裝置20的整體厚度尺寸過大，還會使得第一壓感單元211與第二壓感單元212之間的溫度變化量不同，從而影響溫度補償的效果。 When the thickness of the substrate 201 is less than 50 μm, since the pressure sensing input device 20 is too thin, the strain difference Δε between the first pressure sensitive unit 211 and the second pressure sensitive unit 212 disposed on the upper and lower main surfaces of the substrate 201 is compared. Small, the magnitude of the pressing force cannot be effectively sensed; and when the thickness of the substrate is greater than 450 μm, not only the overall thickness dimension of the pressure sensing input device 20 is excessively large, but also the first pressure sensing unit 211 and the second pressure sensing unit. The amount of temperature change between 212 is different, which affects the effect of temperature compensation.

本新型第三實施例提供了一種壓力感測輸入裝置(圖未示)，其與上述第二實施例的區別在於在本實施例中可通過調整壓力感測輸入裝置各層結構的厚度及其楊氏模數，從而使壓力感測輸入裝置的整體結構的至少一個中性面的其中之一，是位於基板的力學中性面，其中，中性面為壓力感測輸入模組內應變為零的平面，如此，設置在基板(圖未示)上主表面的第一壓感單元(圖未示)的應變為負應變，而設置在基板下主表面的第二壓感單元(圖未示)的應變為正 應變，因此，在相同按壓力作用下，第一壓感單元及第二壓感單元的應變差△ε將大於其應變同為正或同為負的情況，具有增大第一壓感單元及第二壓感單元的應變差△ε的優點。 The third embodiment of the present invention provides a pressure sensing input device (not shown) which differs from the second embodiment described above in that the thickness of each layer structure of the pressure sensing input device and its yang can be adjusted in this embodiment. The modulus, such that one of the at least one neutral plane of the overall structure of the pressure sensing input device is located on the mechanical neutral plane of the substrate, wherein the neutral plane is zero in the pressure sensing input module a plane, such that the strain of the first pressure sensing unit (not shown) disposed on the main surface of the substrate (not shown) is a negative strain, and the second pressure sensing unit disposed on the lower main surface of the substrate (not shown) The strain is positive Strain, therefore, under the same pressing force, the strain difference Δ ε of the first pressure sensing unit and the second pressure sensing unit will be greater than the case where the strain is positive or the same, and the first pressure sensing unit is increased. The advantage of the strain difference Δε of the second pressure sensitive unit.

更進一步的，最佳方案是通過調整壓力感測輸入裝置中各層厚度與楊氏模數，使位於基板內的中性面為壓力感測輸入裝置的唯一中性面，且位於基板的力學中性面。即壓力感測輸入裝置的整體結構的力學對稱中心位於基板的力學中性面，如此，可使在相同按壓力作用下，第一壓感單元及第二壓感單元的應變差△ε最大的優點。從而可以有效提高壓力感測輸入模組的壓力感測靈敏度。 Further, the best solution is to adjust the thickness of each layer and the Young's modulus in the pressure sensing input device, so that the neutral surface located in the substrate is the only neutral surface of the pressure sensing input device, and is located in the mechanics of the substrate. Sexuality. That is, the mechanical symmetry center of the overall structure of the pressure sensing input device is located on the mechanical neutral plane of the substrate, so that the strain difference Δε of the first pressure sensing unit and the second pressure sensing unit can be maximized under the same pressing force. advantage. Therefore, the pressure sensing sensitivity of the pressure sensing input module can be effectively improved.

壓力感測輸入模組中各個第一壓感單元及與其一一對應設置的第二壓感單元(圖未示)的應力差的大小除了與中性面的位置及基板、貼合層的厚度及楊氏模數有關之外，還有第一壓感單元及第二壓感單元圖案形狀及排布方式有關。 The magnitude of the stress difference between each of the first pressure sensing units and the second pressure sensing unit (not shown) disposed one-to-one in the pressure sensing input module is different from the position of the neutral surface and the thickness of the substrate and the bonding layer. In addition to the Young's modulus, there are also the first pressure sensing unit and the second pressure sensing unit pattern shape and arrangement.

請參閱第4圖，本新型第四實施例提供了一種壓力感測輸入裝置40，其與第二實施例的區別在於第一壓感層42上設置有陣列分佈的第一壓感單元421，第4圖中僅以5列×9行陣列的第一壓感單元421為例來進行說明，其實際數量不作限制。因壓力感測輸入裝置40為方形(非圓形)，受其形狀的影響，使得第一壓感層42的平面上不同的區域，在受到按壓作用力後，沿各個方向的形變程度並不相同，其沿某一個方向具有最大形變程度，而沿另一方向具有最小形變程度。其中，形變程度的大小與壓感單元的圖案形狀有關。此外，為了提升壓力感測的靈敏度，較佳的設計是使第一壓感單元421的圖案在沿最大形變程度的方向(最大應變方向)上具有最大長度。 Referring to FIG. 4, a fourth embodiment of the present invention provides a pressure sensing input device 40, which is different from the second embodiment in that a first pressure sensing unit 421 having an array distribution is disposed on the first pressure sensitive layer 42. In the fourth drawing, only the first pressure sensing unit 421 of the array of 5 columns x 9 rows is taken as an example, and the actual number thereof is not limited. Since the pressure sensing input device 40 is square (non-circular), affected by its shape, the different regions on the plane of the first pressure-sensitive layer 42 are deformed in various directions after being subjected to a pressing force. Similarly, it has the greatest degree of deformation in one direction and the smallest degree of deformation in the other direction. Among them, the degree of deformation is related to the pattern shape of the pressure sensitive unit. Further, in order to increase the sensitivity of the pressure sensing, it is preferable to design the pattern of the first pressure sensitive unit 421 to have the maximum length in the direction along the maximum degree of deformation (the maximum strain direction).

具體說來，請參閱第5A圖，當手指按壓壓力感測輸入裝 置40後，第一壓感層42受到力的作用，會產生一定的形變。由於常用的壓力感測輸入裝置40為方形，(非圓形，圓形具有旋轉不變性)，不具有旋轉不變性，受其形狀的影響，使得第一壓感層42平面上各點在受到按壓作用力後沿各個方向的應變程度並不完全相同，其可能沿某一方向具有最大應變，而與之垂直的另一方向具有最小應變，其他方向的應變程度介於二者之間。其中，定義在某一區域中形變程度最大的方向即為此區域的最大應變方向，而在此區域中形變程度最小的方向為此區域的最小應變方向，其中最大應變方向與最小應變方向相互垂直。 Specifically, please refer to Figure 5A, when the finger presses the pressure sensing input After the 40 is placed, the first pressure-sensitive layer 42 is subjected to a force and a certain deformation is generated. Since the commonly used pressure sensing input device 40 is square, (non-circular, the circle has rotation invariance), does not have rotation invariance, and is affected by its shape, so that the points on the plane of the first pressure-sensitive layer 42 are subjected to The degree of strain in all directions after pressing the force is not exactly the same, it may have the maximum strain in one direction, and the other direction perpendicular to it has the smallest strain, and the strain in the other direction is between the two. Wherein, the direction in which the degree of deformation is the largest in a certain region is the maximum strain direction of the region, and the direction in which the degree of deformation is the smallest in this region is the minimum strain direction of the region, wherein the maximum strain direction and the minimum strain direction are perpendicular to each other. .

在不具有旋轉不變性的壓力感測輸入裝置40中，第一壓感層42平面上不同區域的最大應變方向也不一定相同，具體舉例如下：分別選取按壓的受力區域分別位於第一壓感層42的中心處(如第5A圖中A處所示)、對角處(如第5A圖中B處所示)、長邊中點處(如第5A圖中C處所示)、短邊中點處(如第5A圖中D處所示)。 In the pressure sensing input device 40 that does not have the rotation invariance, the maximum strain directions of different regions on the plane of the first pressure sensitive layer 42 are not necessarily the same, and the specific examples are as follows: the force receiving regions respectively selected for pressing are respectively located at the first pressure. At the center of the sensation layer 42 (as shown at A in Figure 5A), at the diagonal (as shown at B in Figure 5A), at the midpoint of the long side (as shown at C in Figure 5A), The midpoint of the short side (as shown at D in Figure 5A).

當按壓的受力區域位於第一壓感層42的中心處，此中心處的最大應變方向為如第5B圖中方向S中所示，最大應變方向S中與第一壓感層42的長邊方向平行；當按壓的受力區域位於第一壓感層42的一對角處，此對角處的最大應變方向為如第5C圖中方向S角所示，最大應變方向S角與經此對角連接的對角線垂直；當按壓的受力區域位於第一壓感層42的長邊中點處時，此處的最大應變方向為如第5D圖中方向S長所示，最大應變方向S長與第一壓感層42的長邊方向垂直；當按壓的受力區域位於第一壓感層42的短邊中點處，此處的最大應 變方向為如第5E圖中方向S短所示，最大應變方向S短與第一壓感層42的長邊方向平行。 When the pressed force region is located at the center of the first pressure sensitive layer 42, the maximum strain direction at the center is as shown in the direction S in FIG. 5B, and the maximum strain direction S is longer than the first pressure sensitive layer 42. The side direction is parallel; when the pressed force region is located at a pair of corners of the first pressure sensitive layer 42, the maximum strain direction at the opposite corner is as indicated by the direction S angle in FIG. 5C, and the maximum strain direction S angle and The diagonal of the diagonal connection is perpendicular; when the pressed force region is located at the midpoint of the long side of the first pressure sensitive layer 42, the maximum strain direction here is as indicated by the direction S length in the 5D image, and the maximum strain S direction length of the long side of the first layer 42 of pressure sensitive vertically; when the pressing force region located at the midpoint of the short side of the first pressure sensitive layer 42, the direction of maximum strain is here as in the first direction in FIG. 5E S is short , and the maximum strain direction S is short in parallel with the longitudinal direction of the first pressure sensitive layer 42.

本新型第四實施例中按壓的受力區域僅以第5B圖-第5E圖中所示的中心處、對角處、長邊中點處及短邊中點處來進行最大應變方向的說明，其實際按壓的受力區域並不作限制，在另外的實施例中，還可實現多點同時按壓操作，其最大應變方向可結合本新型第四實施例中所示內容得出。 The force-receiving region pressed in the fourth embodiment of the present invention is described only at the center, the diagonal, the midpoint of the long side, and the midpoint of the short side as shown in FIGS. 5B to 5E. The force-receiving area of the actual pressing is not limited. In another embodiment, a multi-point simultaneous pressing operation can also be realized, and the maximum strain direction can be obtained by combining the contents shown in the fourth embodiment of the present invention.

上述關於第一壓感層42的最大應變方向的說明也同樣適用於第二壓感層(圖未示)，根據壓力感測輸入裝置40的具體層疊結構，受到相同按壓力時，第一壓感層42與第二壓感層的相對應區域的最大應變方向通常為相同。 The above description about the maximum strain direction of the first pressure sensitive layer 42 is also applicable to the second pressure sensitive layer (not shown). According to the specific laminated structure of the pressure sensing input device 40, when the same pressing force is applied, the first pressure is applied. The maximum strain direction of the corresponding regions of the sensing layer 42 and the second pressure sensitive layer is generally the same.

本新型中根據第一壓感單元421及第二壓感單元是否具有長短軸方向，將第一壓感單元421及第二壓感單元劃分為有方向性的壓感單元或無方向性的壓感單元，其中，有方向性的壓感單元即為具有長短軸方向的壓感單元，而無方向性的壓感單元即為無長短軸方向的壓感單元。 In the present invention, according to whether the first pressure sensing unit 421 and the second pressure sensing unit have a long and short axis direction, the first pressure sensing unit 421 and the second pressure sensing unit are divided into a directional pressure sensing unit or a non-directional pressure. The sensing unit, wherein the directional pressure sensitive unit is a pressure sensitive unit having a long and short axis direction, and the non-directional pressure sensitive unit is a pressure sensitive unit having no long and short axis directions.

請參閱第6A圖-第6B圖，本新型第四實施例中第一壓感單元421為橢圓繞線狀，其中，第一壓感單元421的長軸方向為a方向(即第一壓感單元421沿a方向的總投影長度La最大)，短軸方向為b方向(即第一壓感單元421沿b方向的總投影長度Lb最小)，在一實施例中，a方向與b方向垂直。 Referring to FIG. 6A to FIG. 6B , in the fourth embodiment of the present invention, the first pressure sensing unit 421 has an elliptical winding shape, wherein the long axis direction of the first pressure sensing unit 421 is the a direction (ie, the first pressure sense). The total projection length La of the unit 421 in the a direction is the largest, and the short axis direction is the b direction (ie, the total projection length Lb of the first pressure sensitive unit 421 in the b direction is the smallest). In one embodiment, the a direction is perpendicular to the b direction. .

具有上述橢圓繞線狀的第一壓感單元421朝a方向上的總投影長度最大，而朝b方向上的總投影長度最小，在按壓時，在朝a方向上的應變數大於朝b方向上的應變數，如此，有利於施加在第一壓感 單元421上的按壓作用力所產生的應變可以集中在一個方向上體現，從而使第一壓感單元421的形變更大。由於第一壓感單元421集中在單一方向上發生形變，因此可以使第一壓感單元421的阻值RFn相比於初始狀態發生的變化更大，從而更精准地體現按壓力度的大小。 The first pressure sensing unit 421 having the elliptical winding shape has the largest total projection length in the a direction, and the total projection length in the b direction is the smallest, and the number of strains in the a direction is greater than the direction b when pressed. The strain number on the upper side is such that the strain generated by the pressing force applied to the first pressure sensing unit 421 can be concentrated in one direction, so that the shape of the first pressure sensing unit 421 is changed greatly. Since the first pressure sensing unit 421 is concentrated in a single direction, the resistance value R Fn of the first pressure sensing unit 421 can be made larger than that of the initial state, thereby more accurately reflecting the magnitude of the pressing force.

此外，由於第一壓感單元421為橢圓繞線狀，在一單位面積內，第一壓感單元421的圖案密度相較於單一長條線狀的圖案密度更大，因此，在受到手指按壓時，第一壓感單元421的形變更大，因此第一壓感單元421對壓力偵測的靈敏度更高。 In addition, since the first pressure sensitive unit 421 has an elliptical winding shape, the pattern density of the first pressure sensitive unit 421 is larger than that of the single long linear pattern in a unit area, and therefore, is subjected to finger pressing. When the shape of the first pressure sensitive unit 421 is changed greatly, the first pressure sensing unit 421 is more sensitive to pressure detection.

請參閱第6C圖，第一壓感單元421具有另外的變形實施方式：其中一變形實施方式與上述第一變形實施方式的區別在於第一壓感單元421c為折線狀，第一壓感單元421c折線狀圖案朝一方向的總投影長度最大，此方向即為a方向，第一壓感單元421c折線狀圖案朝一方向的總投影長度最小，此方向即為b方向，其中，a方向與b方向垂直。第一壓感單元421c的a方向為第一壓感單元421c的長軸方向，第一壓感單元421c的b方向為第一壓感單元421c的短軸方向。 Referring to FIG. 6C, the first pressure sensing unit 421 has another modified embodiment: one modified embodiment is different from the first modified embodiment in that the first pressure sensing unit 421c is in a fold line shape, and the first pressure sensing unit 421c The total projection length of the polygonal line pattern in one direction is the largest, and the direction is the a direction. The total projection length of the first pressure sensing unit 421c in a direction is the smallest, and the direction is the b direction, wherein the a direction is perpendicular to the b direction. . The a direction of the first pressure sensitive unit 421c is the long axis direction of the first pressure sensitive unit 421c, and the b direction of the first pressure sensitive unit 421c is the short axis direction of the first pressure sensitive unit 421c.

第一壓感單元421c在受到按壓作用力之後，在朝a方向上的應變數大於朝b方向上的應變數，如此，有利於施加在第一壓感單元421c上的按壓力所產生的應變可以集中在一個方向上體現，從而使第一壓感單元421c的形變更大，從而更精准地體現按壓力度的大小。 After receiving the pressing force, the first pressure sensing unit 421c has a larger number of strains in the a direction than the number of strains in the b direction, thus facilitating the strain generated by the pressing force applied to the first pressure sensing unit 421c. It can be embodied in one direction, so that the shape of the first pressure sensing unit 421c is changed to be more precise, thereby more accurately reflecting the magnitude of the pressing force.

在上述壓感單元的變形實施方式中，橢圓繞線狀因導線大部分區段為圓弧，在制程中較易製作，且更不易損傷，具有更強的實用性。 In the modified embodiment of the pressure sensing unit, the elliptical winding shape is easy to be made in the manufacturing process because the majority of the wire is a circular arc, and is more resistant to damage, and has greater practicability.

第一壓感單元421的形狀還可以是其它線狀如：曲線狀(如第6D圖中第一壓感單元421d)、等長多段串聯線狀(如第6E圖中 的第一壓感單元421e)、不等長多段串聯線狀(如第6F圖中的第一壓感單元421f)或回字型線狀(如圖6G中的第一壓感單元421g)等形狀。上述第一壓感單元421的圖案形狀的變形同樣也適用於本新型中的其他實施例。上述針對第一壓感單元421圖案形狀的各種限定及其變形適用於第二壓感單元(圖未示)。 The shape of the first pressure sensing unit 421 may also be other linear shapes such as a curved shape (such as the first pressure sensing unit 421d in FIG. 6D), and a plurality of segments of equal length in series (as shown in FIG. 6E). The first pressure sensing unit 421e), the unequal length plurality of serial lines (such as the first pressure sensing unit 421f in FIG. 6F) or the retroline shape (such as the first pressure sensing unit 421g in FIG. 6G) shape. The deformation of the pattern shape of the first pressure sensitive unit 421 described above is also applicable to other embodiments of the present invention. The above various definitions for the shape of the first pressure sensitive unit 421 and their modifications are applicable to the second pressure sensitive unit (not shown).

在本新型上述的第二至第四實施例中，當一完整的壓力感測輸入裝置的層疊結構及各層的材料確定之後，壓力感測輸入裝置中各層結構的應變值與壓力感測輸入裝置整體結構的厚度關係也是確定的，即壓力感測輸入裝置整體結構的中性面的數量及其具體的位置同樣是確定的，如本新型第二、第三實施例中通過調整壓力感測輸入裝置的貼合層及基板的楊氏模數及厚度，從而可以使中性面位於或不位於基板內。 In the second to fourth embodiments of the present invention, after the laminated structure of a complete pressure sensing input device and the material of each layer are determined, the strain value and pressure sensing input device of each layer structure in the pressure sensing input device The thickness relationship of the overall structure is also determined, that is, the number of neutral faces of the overall structure of the pressure sensing input device and its specific position are also determined, as in the second and third embodiments of the present invention, by adjusting the pressure sensing input. The Young's modulus and thickness of the bonding layer of the device and the substrate allow the neutral surface to be located or not within the substrate.

在本新型中，組成第一壓感單元與第二壓感單元為壓阻結構，此壓阻結構為透明導電結構，其包含但不受限於：氧化銦錫(Indium Tin Oxide；ITO)結構、氧化錫銻(Antimony Doped Tin Oxide；ATO)結構、氧化銦鋅(IndiumZinc Oxide；IZO)結構、氧化鋅鋁(Aluminum Zinc Oxide；AZO)結構、氧化鎵鋅(Gallium Zinc Oxide；GZO)結構、氧化銦鎵鋅(Indium Gallium Zinc Oxide；IGZO)結構等類似透明金屬氧化物結構，或鎳納米線結構、鉑納米線結構、銀納米線結構等金屬納米線結構，或聚3，4-乙烯二氧噻吩(PEDOT)結構、石墨烯結構、金屬網路結構或碳納米管結構等透明導電材料結構中的一種或多種。 In the present invention, the first pressure sensing unit and the second pressure sensing unit are piezoresistive structures, and the piezoresistive structure is a transparent conductive structure including but not limited to: Indium Tin Oxide (ITO) structure. , Antimony Doped Tin Oxide (ATO) structure, Indium Zinc Oxide (IZO) structure, Aluminum Zinc Oxide (AZO) structure, Gallium Zinc Oxide (GZO) structure, oxidation Indium Gallium Zinc Oxide (IGZO) structure and the like transparent metal oxide structure, or nickel nanowire structure, platinum nanowire structure, silver nanowire structure and other metal nanowire structures, or poly 3,4-ethylene dioxide One or more of transparent conductive material structures such as a thiophene (PEDOT) structure, a graphene structure, a metal network structure, or a carbon nanotube structure.

其中，金屬網格是由細金屬線組成的網格圖案，金屬網格可根據網格圖案的形狀分為無方向性的金屬網格及有方向性的金屬 網格，無方向性的金屬網格是指金屬網格的網格圖案在任意兩個相互垂直方向上的細金屬線總投影長度相同；而有方向性的金屬網格則為沿某一方向具有最大細金屬線總投影長度(最優的方案是所述有方向的網格圖案即為沿某一方向具有最大細金屬線總投影長度，而沿與此方向垂直的方向具有最短的細金屬線總投影長度)。 The metal mesh is a mesh pattern composed of thin metal wires, and the metal mesh can be divided into a non-directional metal mesh and a directional metal according to the shape of the mesh pattern. Grid, non-directional metal mesh means that the mesh pattern of the metal mesh has the same total projection length of the thin metal wires in any two mutually perpendicular directions; and the directional metal mesh is in a certain direction. Having the maximum thin metal line total projection length (the optimal solution is that the directional grid pattern has the largest thin metal line total projection length in a certain direction, and has the shortest fine metal in a direction perpendicular to the direction Line total projection length).

無方向性的金屬網格可以包含由複數個至少一種網格單元組合形成的網格圖案，且網格圖案的任意兩個相互垂直方向上的細金屬線的總投影長度相同。 The non-directional metal mesh may comprise a mesh pattern formed by a combination of a plurality of at least one mesh cells, and the total projected length of the thin metal wires in any two mutually perpendicular directions of the mesh pattern is the same.

如第7A圖中所示的金屬網格的網格圖案包含複數個相同的正方形網格單元，由正方形網格單元組成的網格圖案的任意兩個相互垂直方向上的細金屬線總投影長度相同，因此，此網格圖案為無方向性的圖案。 The grid pattern of the metal grid as shown in FIG. 7A includes a plurality of identical square grid cells, and the total projection length of the thin metal lines in any two mutually perpendicular directions of the grid pattern composed of square grid cells The same, therefore, this grid pattern is a non-directional pattern.

又如第7B圖中所示的金屬網格的網格圖案包含兩種網格單元，其中一種網格單元為圓形，另一種網格單元為四角星形，在本實施例中，網格圖案由圓形網格單元與四角星形網格單元交替設置而成，由圓形網格單元和四角星形網格單元組合形成的網格圖案的任意兩個相互垂直方向上的細金屬線總投影長度相同，因此網格圖案也為無方向性的圖案。 Another example is that the grid pattern of the metal grid shown in FIG. 7B includes two types of grid cells, one of which is a circle and the other of which is a four-pointed star. In this embodiment, the grid The pattern is formed by alternately setting a circular grid unit and a square star grid unit, and any two thin metal lines in a mutually perpendicular direction of the grid pattern formed by the combination of the circular grid unit and the square star grid unit The total projection length is the same, so the grid pattern is also a non-directional pattern.

有方向性的金屬網格的網格圖案具有沿某一方向具有最大細金屬線總投影長度。 The grid pattern of the directional metal grid has a maximum projected length of the thin metal wire in a certain direction.

如第7C圖中所示的金屬網格的網格圖案由複數個相同的六邊形網格單元組成，網格圖案具有一長軸方向，網格圖案的長軸方向上具有最大的細金屬線總投影長度，則具有網格圖案的金屬網格為有方向性的金屬網格材料，而金屬網格的網格圖案的長軸方向即為第 7C圖中金屬網格的c方向。 The mesh pattern of the metal mesh as shown in FIG. 7C is composed of a plurality of identical hexagonal mesh cells having a long axis direction, and the mesh pattern has the largest fine metal in the long axis direction. The total projection length of the line, the metal grid with the grid pattern is the directional metal grid material, and the long axis direction of the grid pattern of the metal grid is the first The c direction of the metal grid in Figure 7C.

如第7D圖中所示的金屬網格由複數個相同的菱形網格單元規律排布形成，菱形最小頂角的角度小於90°，網路圖案具有一長軸方向，則由菱形網格單元形成的網格圖案的長軸方向上具有最大的細金屬線總投影長度，則具有網格圖案的金屬網格為由方向性的金屬網格材料，而金屬網格的網格圖案的長軸方向即為如第7D圖中所示的金屬網格的c方向。 The metal mesh as shown in FIG. 7D is regularly formed by a plurality of identical diamond-shaped mesh elements, the angle of the smallest apex angle of the diamond is less than 90°, and the network pattern has a long axis direction, and the diamond mesh unit is The formed grid pattern has the largest total projection length of the thin metal line in the long axis direction, and the metal grid having the grid pattern is the directional metal grid material, and the long axis of the grid pattern of the metal grid The direction is the c direction of the metal mesh as shown in Fig. 7D.

如第7E圖中所示的金屬網格的網格圖案由複數個四邊形網格單元與六邊形網格單元橫向交替排布形成，網路圖案具有一長軸方向，網格圖案的長軸方向上具有最大的細金屬線總投影長度，具有網格圖案的金屬網格為有方向性的金屬網格材料，而所述金屬網格的網格圖案的長軸方向即為第7E圖中所示的金屬網格的c方向。 The mesh pattern of the metal mesh as shown in FIG. 7E is formed by alternately arranging a plurality of quadrilateral mesh cells and hexagonal mesh cells in a lateral direction, and the network pattern has a long axis direction and a long axis of the mesh pattern. The direction has the largest total projection length of the thin metal wire, the metal mesh with the grid pattern is the directional metal mesh material, and the long axis direction of the mesh pattern of the metal mesh is the 7E The c-direction of the metal grid shown.

如第7F圖中所示，金屬網格的網格圖案由複數個無規律形狀的網格單元形成，網路圖案具有一長軸方向，網格圖案的長軸方向上具有最大的細金屬線總投影長度，因此，具有網格圖案的金屬網格為由方向性的金屬網格材料，且金屬網格的網格圖案的長軸方向即為第7F圖中所示的金屬網格的c方向。 As shown in FIG. 7F, the mesh pattern of the metal mesh is formed by a plurality of grid cells having irregular shapes, the network pattern has a long axis direction, and the mesh pattern has the largest thin metal line in the long axis direction. The total projection length, therefore, the metal mesh having the grid pattern is a directional metal mesh material, and the long axis direction of the mesh pattern of the metal mesh is the metal mesh shown in the 7Fth image. direction.

請參閱第8A圖，本新型第五實施例壓力感測輸入裝置50中至少包含一基板51，第一壓感層52設置在基板51的上表面，基板51的下表面設有與第一壓感層52相對應設置的第二壓感層53，其中，第一壓感層52、基板51及第二壓感層53的整體厚度為T。第一壓感層52及第二壓感層53分別包含至少一個第一壓感單元521及至少一個第二壓感單元531，第一壓感單元521及第二壓感單元531與上述第四實施例相同，在此不再贅述。 Referring to FIG. 8A, the pressure sensing input device 50 of the fifth embodiment of the present invention includes at least one substrate 51. The first pressure sensitive layer 52 is disposed on the upper surface of the substrate 51, and the lower surface of the substrate 51 is provided with the first pressure. The sensing layer 52 is correspondingly disposed with the second pressure sensitive layer 53 , wherein the first pressure sensitive layer 52 , the substrate 51 , and the second pressure sensitive layer 53 have an overall thickness T. The first pressure sensitive layer 52 and the second pressure sensitive layer 53 respectively include at least one first pressure sensing unit 521 and at least one second pressure sensing unit 531, the first pressure sensing unit 521 and the second pressure sensing unit 531 and the fourth The embodiments are the same and will not be described again here.

請參閱第8B圖，當壓力感測輸入裝置50所處的完整的壓力感測輸入裝置各層結構與材料確定之後，受到按壓作用力時，壓力感測輸入裝置各層結構及其相應的應變趨勢關係就是確定的，此處僅選取壓力感測輸入裝置50(厚度T的橫坐標為n-m)的應變-厚度關係線，其中，n處對應第一壓感層52位於壓力感測輸入裝置50內的厚度位置，m處則對應第二壓感層53位於壓力感測輸入裝置50內的厚度位置(因第一壓感層52與第二壓感層53相對於基板的厚度較小，此處僅以一個點表示)。 Referring to FIG. 8B, when the structure and material of each layer of the complete pressure sensing input device where the pressure sensing input device 50 is located are determined, the relationship between the layers of the pressure sensing input device and the corresponding strain trend relationship when the pressing force is applied. It is determined that only the strain-thickness relationship line of the pressure sensing input device 50 (the abscissa of the thickness T is nm) is selected here, wherein the n corresponding first pressure sensing layer 52 is located in the pressure sensing input device 50. The thickness position, where m corresponds to the thickness position of the second pressure sensitive layer 53 in the pressure sensing input device 50 (since the thickness of the first pressure sensitive layer 52 and the second pressure sensitive layer 53 relative to the substrate is small, only Expressed as a dot).

第8C圖-第8D圖表示壓力感測輸入裝置50基板51上各壓感單元所在位置大致的應變分佈方向，其中第8C圖中的箭頭方向大致為此處的最大應變方向，而第8D圖中的箭頭方向大致為此處的最小應變方向。 8C to 8D are diagrams showing a substantially strain distribution direction of the position of each pressure sensitive unit on the substrate 51 of the pressure sensing input device 50, wherein the direction of the arrow in the 8Cth is substantially the maximum strain direction here, and the 8D The direction of the arrow in the direction is roughly the minimum strain direction here.

如第8B圖中應變-厚度關係線的Ⅵ處所示，為本新型第五實施例壓力感測輸入裝置50的第一變形實施方式：當壓力感測輸入裝置50的一個中性面位於基板51內時，第一壓感單元521的應變為負應變(即為壓縮狀態)，第二壓感單元531的應變為正應變(即為拉伸狀態)。為了使第一壓感單元521與第二壓感單元531之間的應變差△ε更大，較佳是使第一壓感單元521的應變數絕對值與第二壓感單元531的應變數絕對值均為最大。 As shown in VI of the strain-thickness relationship line in FIG. 8B, a first modified embodiment of the pressure sensing input device 50 of the fifth embodiment of the present invention is: when a neutral surface of the pressure sensing input device 50 is located on the substrate In the case of 51, the strain of the first pressure sensitive unit 521 is a negative strain (that is, a compressed state), and the strain of the second pressure sensitive unit 531 is a positive strain (that is, a tensile state). In order to make the strain difference Δε between the first pressure sensitive unit 521 and the second pressure sensitive unit 531 larger, it is preferable to make the absolute value of the strain of the first pressure sensitive unit 521 and the strain of the second pressure sensitive unit 531. The absolute values are the largest.

第一壓感單元521與第二壓感單元531根據其圖案形狀具有一長軸方向，在長軸方向上具有所述第一壓感單元521與第二壓感單元531的圖案形狀的最長的總投影長度。 The first pressure sensitive unit 521 and the second pressure sensitive unit 531 have a long axis direction according to the pattern shape thereof, and have the longest pattern shape of the first pressure sensitive unit 521 and the second pressure sensitive unit 531 in the long axis direction. Total projection length.

為了提高第一壓感單元521的應變數與第二壓感單元531的應變數，可通過調整第一壓感單元521的長軸方向、第二壓感單元531 的長軸方向分別與其所在區域的最大應變方向平行或僅成一很小的角度，從而實現對第一壓感單元521與第二壓感單元531之間的應變差△ε值大小的調整。在一些較優的實施方式中，第一壓感單元521與其對應設置的第二壓感單元531的形狀不相同。 In order to increase the strain number of the first pressure sensitive unit 521 and the strain number of the second pressure sensitive unit 531, the long axis direction of the first pressure sensitive unit 521 and the second pressure sensitive unit 531 may be adjusted. The long axis directions are respectively parallel or only at a small angle to the maximum strain direction of the region in which they are located, thereby achieving adjustment of the magnitude of the strain difference Δε between the first pressure sensitive unit 521 and the second pressure sensitive unit 531. In some preferred embodiments, the first pressure sensing unit 521 is different in shape from the corresponding second pressure sensing unit 531.

定義第一壓感單元521的長軸方向與第一壓感單元521所在區域的最大應變方向的夾角呈角度a1。與第一壓感單元521對應設置的第二壓感單元531的長軸方向與其所在區域的最大應變方向的夾角呈角度a2，其中，角度a1與角度a2的角度不含方向性，即其範圍為0°-90°。在本實施例中，角度a1與角度a2優選為0°-45°，還可為0°-20°，還可進一步為0°-10°，最優為0°(即第一壓感單元521及第二壓感單元531的長軸方向分別與兩者所在區域的最大應變方向平行設置)。 The angle between the major axis direction of the first pressure sensitive unit 521 and the maximum strain direction of the region where the first pressure sensitive unit 521 is located is defined as an angle a1. The angle between the long axis direction of the second pressure sensitive unit 531 corresponding to the first pressure sensitive unit 521 and the maximum strain direction of the region in which it is located is at an angle a2, wherein the angle of the angle a1 and the angle a2 does not include directivity, that is, the range thereof. It is 0°-90°. In this embodiment, the angle a1 and the angle a2 are preferably 0°-45°, and may also be 0°-20°, and further may be 0°-10°, and optimally 0° (ie, the first pressure sensing unit) The major axis directions of the 521 and the second pressure sensing unit 531 are respectively arranged in parallel with the maximum strain direction of the region where the two are located.

當第一壓感單元521的長軸方向與第一壓感層52的最大應變方向相同時，可使第一壓感單元521的應變數絕對值最大；當第二壓感單元531的長軸方向與第二壓感層53的最大應變方向相同時，可使第二壓感單元531的應變數絕對值最大。在第一壓感單元521與第二壓感單元531的應變為一正一負的前提下，可使第一壓感單元521與第二壓感單元531的應變差△ε獲得較大值。 When the long axis direction of the first pressure sensitive unit 521 is the same as the maximum strain direction of the first pressure sensitive layer 52, the absolute value of the strain of the first pressure sensitive unit 521 can be maximized; when the long axis of the second pressure sensitive unit 531 When the direction is the same as the maximum strain direction of the second pressure sensitive layer 53, the absolute value of the strain amount of the second pressure sensitive unit 531 can be maximized. On the premise that the strain of the first pressure sensitive unit 521 and the second pressure sensitive unit 531 is positive and negative, the strain difference Δε of the first pressure sensitive unit 521 and the second pressure sensitive unit 531 can be obtained to a large value.

在本實施方式中，第一壓感層52及第二壓感層53的圖形排布方式均大致如第8C圖所示。即箭頭方向也同時表示為第一壓感單元521和第二壓感單元531的a方向。 In the present embodiment, the pattern arrangement of the first pressure sensitive layer 52 and the second pressure sensitive layer 53 is substantially as shown in FIG. 8C. That is, the direction of the arrow is also indicated as the a direction of the first pressure sensitive unit 521 and the second pressure sensitive unit 531 at the same time.

在另外的變形實施方式中，當壓力感測輸入裝置50整體結構具有唯一一個中性面，且位於基板51的力學中心面時，第一壓感單元的應變數與第二壓感單元的應變數絕對值達到最大值，則兩者的 應變差△ε最大。如第8B圖中應變-厚度關係曲線的V處及Ⅶ處所示：當壓力感測輸入裝置50中沒有任一個中性面位於基板51內時(即應變ε’=0及應變ε”=0的平面均不在基板51內)，而與基板51最靠近的中性面位於基板51之上或之下，將決定第一壓感單元521的應變與第二壓感單元531的應變同為負應變或同為正應變。 In another modified embodiment, when the overall structure of the pressure sensing input device 50 has a unique neutral plane and is located at the mechanical center plane of the substrate 51, the strain number of the first pressure sensing unit and the second pressure sensing unit should The absolute value of the variable reaches the maximum value, then both The strain difference Δε is the largest. As shown in Fig. 8B, the strain-thickness curve is shown at V and VII: when none of the neutral surfaces of the pressure sensing input device 50 are located in the substrate 51 (i.e., strain ε' = 0 and strain ε = The plane of 0 is not in the substrate 51, and the neutral plane closest to the substrate 51 is located above or below the substrate 51, which determines that the strain of the first pressure sensitive unit 521 is the same as the strain of the second pressure sensitive unit 531. Negative strain or the same positive strain.

如第8B圖中V處所示，為本新型第五實施例壓力感測輸入裝置50的第二變形實施方式：當第一壓感單元521的應變與第二壓感單元531的應變同為負應變，為了使第一壓感單元521與第二壓感單元531之間的應變差△ε更大，需要使第一壓感單元的應變數絕對值較大，而使第二壓感單元的應變數絕對值較小，如此，兩者的應變差△ε較大。 As shown in FIG. 8B, a second modified embodiment of the pressure sensing input device 50 of the fifth embodiment is the same as the strain of the first pressure sensing unit 521 and the strain of the second pressure sensing unit 531. Negative strain, in order to make the strain difference Δε between the first pressure sensitive unit 521 and the second pressure sensitive unit 531 larger, it is necessary to make the absolute value of the strain amount of the first pressure sensitive unit larger, and the second pressure sensitive unit The absolute value of the strain number is small, and thus, the strain difference Δε of both is large.

而為了提高第一壓感單元521的應變數絕對值，第一壓感單元521的長軸方向與其所在區域的最大應變方向的夾角的角度a1可選為0°-45°，還可為0°-20°，還可進一步為0°-10°，最優為0°(即第一壓感單元521的長軸方向分別與其所在區域的最大應變方向平行設置)；為了降低第二壓感單元531的應變數絕對值，第二壓感單元531的長軸方向與其所在區域的最大應變方向的夾角的角度a2則優選為45°-90°，還可為70°-90°，還可進一步為80°-90°，最優為90°(即第二壓感單元531的長軸方向與其所在區域的最大應變方向垂直設置)。 In order to increase the absolute value of the strain number of the first pressure sensing unit 521, the angle a1 of the angle between the long axis direction of the first pressure sensing unit 521 and the maximum strain direction of the region in which it is located may be 0°-45°, and may also be 0. °-20°, further preferably 0°-10°, optimally 0° (ie, the long axis direction of the first pressure sensing unit 521 is respectively arranged in parallel with the maximum strain direction of the region where it is located); in order to reduce the second pressure sense The absolute value of the strain number of the unit 531, the angle a2 of the angle between the long axis direction of the second pressure sensing unit 531 and the maximum strain direction of the region in which it is located is preferably 45°-90°, and may be 70°-90°, and may also be Further, it is 80°-90°, and most preferably 90° (that is, the long axis direction of the second pressure sensitive unit 531 is perpendicular to the maximum strain direction of the region where it is located).

如第8C圖-第8D圖中所示，在第五實施例的第二變形實施方式中，第一壓感層52的圖形排布方式大致如第8C圖所示，而第二壓感層53的圖形排布方式大致如第8D圖所示，即第8C圖、第8D圖的箭頭方向也同時表示為第一壓感單元521、第二壓感單元531的a方向。 As shown in FIG. 8C to FIG. 8D, in the second modified embodiment of the fifth embodiment, the pattern of the first pressure sensitive layer 52 is arranged substantially as shown in FIG. 8C, and the second pressure sensitive layer. The pattern arrangement pattern of 53 is substantially as shown in FIG. 8D, that is, the arrow directions of the 8Cth and 8Dth drawings are also indicated as the a direction of the first pressure sensitive unit 521 and the second pressure sensitive unit 531.

由於在相同按壓力作用下，壓感單元受到相同的應力作 用，而壓感單元的實際應變的大小與其圖案形狀、材料性質及所設定的圖案朝a、b方向的總投影長度大小有關。因此，除了通過調整壓感單元的長軸方向與最大應變方向的角度之外，還可以通過調整第一壓感單元521及與其對應設置的第二壓感單元531的圖案形狀，具體如下。 The pressure sensing unit is subjected to the same stress due to the same pressing force. The actual strain of the pressure sensitive unit is related to its pattern shape, material properties and the total projected length of the set pattern in the a and b directions. Therefore, in addition to adjusting the angle between the long axis direction and the maximum strain direction of the pressure sensitive unit, the pattern shape of the first pressure sensitive unit 521 and the second pressure sensitive unit 531 provided corresponding thereto can be adjusted as follows.

將第一壓感單元521及第二壓感單元531的圖案形狀設置為不相同，且圖案形狀應滿足以下關係：L上a/L上b>L下a/L下b The pattern shapes of the first pressure sensitive unit 521 and the second pressure sensitive unit 531 are set to be different, and the shape of the pattern should satisfy the following relationship: L on a / L , b > L , a / L , b

其中，L上a表示為第一壓感單元521的朝a方向的總投影長度，L上b表示為第一壓感單元521的朝b方向的總投影長度，L下a表示為第二壓感單元531的朝a方向的總投影長度，L下b表示為第二壓感單元531的朝b方向的總投影長度。 Wherein, L a represents a first pressure-sensing unit 521 toward a direction of the total projected length, L b represents the total projected toward the longitudinal direction b of the first pressure-sensing unit 521, L a represents a second lower pressure total projected toward a longitudinal direction of the sensing unit 531, L b represents the total projected length direction b toward the second pressure sensing unit 531.

通過調整第一壓感單元521與第二壓感單元531之間朝a方向的總投影長度與朝b方向的總投影長度的比值的關係，從而使第一壓感單元521的應變相較於第二壓感單元531更集中於一個方向上，從而獲得更大的應變數。則當第一壓感單元521的應變與第二壓感單元531的應變同為負應變時，可以獲得更大的應變差△ε。 By adjusting the relationship between the total projection length in the a direction between the first pressure sensitive unit 521 and the second pressure sensitive unit 531 and the total projection length in the b direction, the strain of the first pressure sensitive unit 521 is compared with The second pressure sensing unit 531 is more concentrated in one direction, thereby obtaining a larger strain number. Then, when the strain of the first pressure sensitive unit 521 is the same as the strain of the second pressure sensitive unit 531, a larger strain difference Δε can be obtained.

如Ⅶ處所示，為本新型第五實施例壓力感測輸入裝置50的第三變形實施方式：當第一壓感單元521的應變與第二壓感單元531的應變同為正應變，為了使第一壓感單元521與第二壓感單元531之間的應變差△ε更大，需要使第一壓感單元521的應變數絕對值較小，而使第二壓感單元531的應變數絕對值較大，如此，兩者的應變差△ε較大。 As shown in FIG. VII, a third modified embodiment of the pressure sensing input device 50 of the fifth embodiment of the present invention is: when the strain of the first pressure sensing unit 521 is the same as the strain of the second pressure sensing unit 531, The strain difference Δε between the first pressure sensitive unit 521 and the second pressure sensitive unit 531 is made larger, and the absolute value of the strain number of the first pressure sensitive unit 521 needs to be smaller, and the second pressure sensitive unit 531 should be made smaller. The absolute value of the variable is large, and thus the strain difference Δε of both is large.

本變形實施方式與上述第二變形實施方式的區別如下。 The difference between the present modified embodiment and the second modified embodiment described above is as follows.

(1)第一壓感單元521的長軸方向與其所在區域的最大 應變方向的夾角的角度a1優選為45°-90°，還可為70°-90°，還可進一步為80°-90°，最優為90°(即第一壓感單元521的長軸方向與其所在區域的最大應變方向垂直設置)；而第二壓感單元531的長軸方向與其所在區域的最大應變方向的夾角的角度a2則優選為0°-45°，還可為0°-20°，還可進一步為0°-10°，最優為0°(即第二壓感單元531的長軸方向分別與其所在區域的最大應變方向平行設置)。在本實施方式中，第一壓感層52的圖形排布方式如第8D圖所示，而第二壓感層53的圖形排布方式如第8C圖所示，即第8C圖、第8D圖箭頭方向也同時表示為第一壓感單元521和第二壓感單元531的a方向。 (1) The long axis direction of the first pressure sensitive unit 521 and the largest area thereof The angle a1 of the angle of the strain direction is preferably 45°-90°, and may be 70°-90°, further preferably 80°-90°, and most preferably 90° (ie, the long axis of the first pressure sensing unit 521) The direction is perpendicular to the maximum strain direction of the region in which it is located; and the angle a2 of the angle between the long axis direction of the second pressure sensing unit 531 and the maximum strain direction of the region in which it is located is preferably 0°-45°, and may also be 0°- 20° may further be 0°-10°, and optimally 0° (ie, the long axis directions of the second pressure sensing unit 531 are respectively arranged in parallel with the maximum strain direction of the region in which it is located). In the present embodiment, the pattern arrangement of the first pressure sensitive layer 52 is as shown in FIG. 8D, and the pattern arrangement pattern of the second pressure sensitive layer 53 is as shown in FIG. 8C, that is, FIG. 8C and FIG. 8D. The arrow direction of the figure is also indicated as the a direction of the first pressure sensitive unit 521 and the second pressure sensitive unit 531 at the same time.

(2)第一壓感單元521及第二壓感單元531的圖案形狀設置為不相同，且圖案形狀應滿足以下關係：L上a/L上b<L下a/L下b (2) The pattern shapes of the first pressure sensitive unit 521 and the second pressure sensitive unit 531 are set to be different, and the shape of the pattern should satisfy the following relationship: L on a / L on b < L lower a / L lower b

其中，L上a表示為第一壓感單元521的朝a方向的總投影長度，L上b表示為第一壓感單元521的朝b方向的總投影長度，L下a表示為第二壓感單元531的朝a方向的總投影長度，L下b表示為第二壓感單元531的朝b方向的總投影長度。 Wherein, L a represents a first pressure-sensing unit 521 toward a direction of the total projected length, L b represents the total projected toward the longitudinal direction b of the first pressure-sensing unit 521, L a represents a second lower pressure total projected toward a longitudinal direction of the sensing unit 531, L b represents the total projected length direction b toward the second pressure sensing unit 531.

其它內容與上述第二變形實施方式相同，在此不再贅述。結合上述兩種調整方式，當第一壓感單元521的應變與第二壓感單元531的應變同為正應變時，可以獲得更大的應變差△ε。 Other contents are the same as the second modified embodiment described above, and details are not described herein again. In combination with the above two adjustment modes, when the strain of the first pressure sensitive unit 521 and the strain of the second pressure sensitive unit 531 are both positive strain, a larger strain difference Δε can be obtained.

在第五實施例中，若採用金屬網格為第一壓感單元521和第二壓感單元531的材料，則可以採用無方向性的金屬網格的網格圖案，也可以採用有方向性的金屬網格圖案，而當採用有方向性的金屬網格圖案時，如第8E圖中所示，需使第一壓感單元521所使用金屬網格的網格圖案的c方向與第一壓感單元521的a方向一致，第二壓感單元 531所使用金屬網格的網格圖案的c方向與第二壓感單元的a方向一致。 In the fifth embodiment, if the metal mesh is used as the material of the first pressure sensing unit 521 and the second pressure sensing unit 531, a mesh pattern of the non-directional metal mesh may be used, or directionality may be adopted. Metal grid pattern, and when a directional metal grid pattern is used, as shown in FIG. 8E, the c direction of the grid pattern of the metal grid used by the first pressure sensing unit 521 is required to be the first The pressure sensing unit 521 has the same a direction, and the second pressure sensing unit The c direction of the mesh pattern of the metal mesh used by 531 coincides with the a direction of the second pressure sensitive unit.

在第五實施例中的又一變形實施方式中提供一壓力感測輸入裝置60，第8C圖及第8D圖還可進一步表示壓力感測輸入裝置60基板(未標號)上各壓感單元所在位置大致的應變分佈方向，其中第8C圖中的箭頭方向大致為第一壓感單元621或第二壓感單元631所在區域的最大應變方向，而第8D圖中的箭頭方向大致為所述區域的最小應變方向。 In a further variant embodiment of the fifth embodiment, a pressure sensing input device 60 is provided. The 8C and 8D drawings may further represent the pressure sensing units on the substrate (not labeled) of the pressure sensing input device 60. The approximate strain distribution direction, wherein the direction of the arrow in the 8Cth is substantially the maximum strain direction of the region where the first pressure sensitive unit 621 or the second pressure sensitive unit 631 is located, and the direction of the arrow in the 8D graph is substantially the area The minimum strain direction.

壓力感測輸入裝置60與本新型第五實施例的區別在於：第一壓感單元621與第二壓感單元631本身不具有方向性(如方塊狀或其它無方向性形狀)，而第一壓感單元621與第二壓感單元631所使用的材料為具有方向性的金屬網格。通過調整形成第一壓感單元621及/或第二壓感單元631的金屬網格的長軸方向，也可對第一壓感單元621與第二壓感單元631之間的應變差△ε值大小的調整。 The difference between the pressure sensing input device 60 and the fifth embodiment of the present invention is that the first pressure sensing unit 621 and the second pressure sensing unit 631 do not have directivity (such as a square shape or other non-directional shape). The material used by the pressure sensing unit 621 and the second pressure sensing unit 631 is a metal mesh having a directivity. The strain difference Δ ε between the first pressure sensitive unit 621 and the second pressure sensitive unit 631 can also be adjusted by adjusting the long axis direction of the metal mesh forming the first pressure sensitive unit 621 and/or the second pressure sensitive unit 631. The adjustment of the value size.

第一壓感單元621與第二壓感單元631均由一金屬網格形成，金屬網格由細金屬線以網格圖案的形式形成。具有方向性的金屬網格的網格圖案具有長軸方向及短軸方向。其具有方向性的金屬網格的網格圖案為沿某一方向具有最大的細金屬線的總投影長度，此方向即為網格圖案的長軸方向、並表示為c方向。具有方向性的金屬網格的網格圖案沿一方向具有最小的細金屬線的總投影長度，此方向即為網格圖案的短軸方向、並表示為e方向。其中，此c方向與e方向垂直設置。在按壓時，在朝c方向上的應變數大於朝e方向上的應變數。第一壓感單元621的c方向與其所在區域的最大應變方向的夾角呈角度d1，第一壓感單元631的c方向與其所在區域的最大應變方向的夾角呈角度d2。其中，第一壓感單元與第二壓感單元對應設置，角度d1與角度d2的角 度不具有方向性，即其範圍為0°-90°。 The first pressure sensing unit 621 and the second pressure sensing unit 631 are each formed of a metal mesh formed of a thin metal wire in a grid pattern. The mesh pattern of the directional metal mesh has a long axis direction and a short axis direction. The mesh pattern of the directional metal mesh is the total projected length of the largest thin metal wire in a certain direction, which is the long axis direction of the mesh pattern and is expressed as the c direction. The grid pattern of the directional metal mesh has a minimum total projection length of the thin metal line in one direction, which is the short-axis direction of the grid pattern and is expressed as the e-direction. Wherein, the c direction is perpendicular to the e direction. When pressed, the number of strains in the c direction is larger than the number of strains in the e direction. The angle between the c direction of the first pressure sensitive unit 621 and the maximum strain direction of the region in which it is located is at an angle d1, and the angle between the c direction of the first pressure sensitive unit 631 and the maximum strain direction of the region in which it is located is at an angle d2. Wherein, the first pressure sensing unit is disposed corresponding to the second pressure sensing unit, and the angle of the angle d1 and the angle d2 Degree does not have directionality, that is, its range is 0°-90°.

第一壓感單元621的金屬網格的網格圖案與第二壓感單元631的金屬網格的網格圖案及其長軸方向均不相同。 The mesh pattern of the metal mesh of the first pressure sensitive unit 621 is different from the mesh pattern of the metal mesh of the second pressure sensitive unit 631 and its long axis direction.

由於中性面位於壓力感測裝置60的不同位置，本實施方式還可進一步分為如下幾種情形。 Since the neutral plane is located at different positions of the pressure sensing device 60, the present embodiment can be further divided into the following situations.

(一)當中性面位於基板(圖未示)中時，第一壓感單元621的應變為負應變，第二壓感單元631的應變為正應變。為了使第一壓感單元621與第二壓感單元631之間的應變差△ε更大，較佳的實施方式是使第一壓感單元621的應變數絕對值與第二壓感單元631的應變數絕對值均為最大，則需要使角度d1與角度d2優選為0°-45°，還可為0°-20°，還可進一步為0°-10°，最優為0°。而當角度d1與角度d2均為0°時，可使第一壓感單元621與第二壓感單元631的應變數絕對值均最大，即第8C圖及第8D圖不同受力區域的箭頭方向也同時表示為在此受力區域內，形成第一壓感單元621的金屬網格的網格圖案及形成第二壓感單元631的金屬網格的網格圖案的c方向。當壓力感測輸入裝置60中沒有任一個中性面位於基板(圖未示)內時，與基板最靠近的中性面位於基板之上或之下，將決定第一壓感單元621的應變與第二壓感單元631的應變同為負應變或同為正應變，可進一步包含如下變形實施方式： (1) When the neutral plane is located in the substrate (not shown), the strain of the first pressure sensitive unit 621 is a negative strain, and the strain of the second pressure sensitive unit 631 is a positive strain. In order to make the strain difference Δε between the first pressure sensitive unit 621 and the second pressure sensitive unit 631 larger, a preferred embodiment is to make the absolute value of the strain of the first pressure sensitive unit 621 and the second pressure sensitive unit 631. The absolute value of the strain number is the largest, and the angle d1 and the angle d2 are preferably 0°-45°, 0°-20°, further 0°-10°, and most preferably 0°. When the angle d1 and the angle d2 are both 0°, the absolute values of the strain numbers of the first pressure sensing unit 621 and the second pressure sensing unit 631 can be maximized, that is, the arrows of the different force regions of the 8C and 8D images. The direction is also indicated as the c-direction of the mesh pattern of the metal mesh forming the first pressure sensitive unit 621 and the mesh pattern of the metal mesh forming the second pressure sensitive unit 631 in the force receiving region. When no neutral surface of the pressure sensing input device 60 is located in the substrate (not shown), the neutral surface closest to the substrate is located above or below the substrate, which will determine the strain of the first pressure sensing unit 621. And the strain of the second pressure sensing unit 631 is the same as the negative strain or the same as the positive strain, and may further include the following modified embodiments:

(二)當第一壓感單元621的應變與第二壓感單元631的應變同為負應變時，為了使第一壓感單元621與第二壓感單元631之間的應變差△ε更大，需要使第一壓感單元621的應變數絕對值較大，因此需要將形成第一壓感單元621的金屬網格的網格圖案的c1方向與其所在區域的最大應變方向的夾角d1可選為0°-45°，還可為0°-20°，還可 進一步為0°-10°，最優為0°(即平行設置)；而為了降低第二壓感單元631應變數的絕對值，形成第二壓感單元631的金屬網格的網格圖案的c1方向與其所在區域的最大應變方向的夾角d2優選為45°-90°，還可為70°-90°，還可進一步為80°-90°，最優為90°。即如第8C圖、第8D圖中所示不同受力區域的箭頭方向還可表示為形成第一壓感單元621的金屬網格的網格圖案和形成第二壓感單元631的金屬網格的網格圖案的c方向。 (2) When the strain of the first pressure sensitive unit 621 and the strain of the second pressure sensitive unit 631 are both negative strain, in order to make the strain difference Δε between the first pressure sensitive unit 621 and the second pressure sensitive unit 631 If the absolute value of the strain of the first pressure sensing unit 621 is large, the angle d1 between the c1 direction of the mesh pattern of the metal mesh forming the first pressure sensing unit 621 and the maximum strain direction of the region in which it is located may be required. Choose from 0°-45°, also 0°-20°, also Further, 0°-10°, optimally 0° (ie, parallel arrangement); and in order to reduce the absolute value of the strain number of the second pressure sensitive unit 631, a mesh pattern of the metal mesh of the second pressure sensitive unit 631 is formed. The angle d2 between the c1 direction and the maximum strain direction of the region in which it is located is preferably 45° to 90°, may be 70° to 90°, and further preferably 80° to 90°, and most preferably 90°. That is, the direction of the arrow of the different force receiving regions as shown in FIG. 8C and FIG. 8D may also be expressed as a mesh pattern of the metal mesh forming the first pressure sensitive unit 621 and a metal mesh forming the second pressure sensitive unit 631. The grid pattern of the c direction.

在另一個較優的變形實施方式中，形成第一壓感單元621、第二壓感單元631的金屬網格的網格圖案的形狀還可進一步滿足以下關係：Lc1/Le2>Lc2/Le2 In another preferred modified embodiment, the shape of the mesh pattern of the metal mesh forming the first pressure sensing unit 621 and the second pressure sensing unit 631 may further satisfy the following relationship: L c1 /L e2 >L c2 /L e2

其中，Lc1表示為形成第一壓感單元的金屬網格的網格圖案朝所述c方向的細金屬線的總投影長度，Ld1表示為形成第一壓感單元的金屬網格的網格圖案朝所述e方向的細金屬線的總投影長度，Lc2表示為形成第一壓感單元的金屬網格的網格圖案朝所述c方向的細金屬線的總投影長度，Ld2表示為形成第一壓感單元的金屬網格的網格圖案朝所述e方向的細金屬線的總投影長度。 Wherein, L c1 represents the total projected length of the mesh pattern of the metal mesh forming the first pressure sensitive unit toward the thin metal line in the c direction, and L d1 represents the mesh of the metal mesh forming the first pressure sensitive unit. The total projected length of the thin metal line of the lattice pattern toward the e direction, L c2 is the total projected length of the thin metal line of the metal mesh forming the first pressure sensitive unit toward the c direction, L d2 The total projected length of the thin metal line of the metal mesh forming the first pressure sensitive unit toward the e direction.

(三)當第一壓感單元的應變與第二壓感單元的應變同為正應變，為了使第一壓感單元與第二壓感單元之間的應變差△ε更大，需使第一壓感單元的應變數絕對值較小，而使第二壓感單元的應變數絕對值較大，如此，兩者的應變差△ε較大。 (3) when the strain of the first pressure sensitive unit is the same as the strain of the second pressure sensitive unit, in order to make the strain difference Δε between the first pressure sensitive unit and the second pressure sensitive unit larger, The absolute value of the strain number of one pressure sensitive unit is small, and the absolute value of the strain number of the second pressure sensitive unit is large, so that the strain difference Δε of both is large.

上述實施方式(二)與上述實施方式(三)的區別在於：形成第一壓感單元的金屬網格的網格圖案的c方向與其所在區域的最大應變方向的夾角的角度d1優選為45°-90°，還可為70°-90°，還可進一 步為80°-90°，最優為90°(即垂直設置)；而第二壓感單元的長軸方向與其所在區域的最大應變方向的夾角的角度d2則優選為0°-45°，還可為0°-20°，還可進一步為0°-10°，最優為0°(即平行設置)。即如第8C圖、第8D圖中所示不同受力區域的箭頭方向還可表示為形成第二壓感單元631的金屬網格的網格圖案和形成第一壓感單元621的金屬網格的網格圖案的c方向。 The above embodiment (2) is different from the above-described embodiment (3) in that the angle d1 of the angle between the c direction of the mesh pattern of the metal mesh forming the first pressure sensitive unit and the maximum strain direction of the region in which it is located is preferably 45°. -90°, can also be 70°-90°, can also enter one The step is 80°-90°, preferably 90° (ie, vertical setting); and the angle d2 of the angle between the long axis direction of the second pressure sensing unit and the maximum strain direction of the region in which it is located is preferably 0°-45°. It may also be 0°-20°, further further 0°-10°, optimally 0° (ie parallel setting). That is, the direction of the arrow of the different force receiving regions as shown in FIG. 8C and FIG. 8D may also be expressed as a mesh pattern of the metal mesh forming the second pressure sensitive unit 631 and a metal mesh forming the first pressure sensitive unit 621. The grid pattern of the c direction.

第一壓感單元及與其對應設置的第二壓感單元的圖案形狀不相同，且圖案形狀應滿足以下關係：Lc1/Le1<Lc2/Le2 The pattern shape of the first pressure sensing unit and the second pressure sensing unit disposed corresponding thereto are different, and the pattern shape should satisfy the following relationship: L c1 /L e1 <L c2 /L e2

其中，Lc1表示為形成第一壓感單元的金屬網格的網格圖案朝所述c方向的細金屬線的總投影長度，Ld1表示為形成第一壓感單元的金屬網格的網格圖案朝所述e方向的細金屬線的總投影長度，Lc2表示為形成第一壓感單元的金屬網格的網格圖案朝所述c方向的細金屬線的總投影長度，Ld2表示為形成第一壓感單元的金屬網格的網格圖案朝所述e方向的細金屬線的總投影長度。其它內容與上述實施方式(二)相同，在此不再贅述。 Wherein, L c1 represents the total projected length of the mesh pattern of the metal mesh forming the first pressure sensitive unit toward the thin metal line in the c direction, and L d1 represents the mesh of the metal mesh forming the first pressure sensitive unit. The total projected length of the thin metal line of the lattice pattern toward the e direction, L c2 is the total projected length of the thin metal line of the metal mesh forming the first pressure sensitive unit toward the c direction, L d2 The total projected length of the thin metal line of the metal mesh forming the first pressure sensitive unit toward the e direction. Other contents are the same as those in the above embodiment (2), and are not described herein again.

上述實施方式(二)和(三)中，除了調整行程第一壓感單元621與第二壓感單元631的金屬網格的長軸方向，還可進一步通過調整形成第一壓感單元621的金屬網格及形成第二壓感單元631的金屬網格的網格圖案之間朝c方向的總投影長度與朝e方向的細金屬線的總投影長度的比值關係，從而使無圖案方向的第一壓感單元621的應變相較於同樣無圖案方向的第二壓感單元631在其具有方向性的金屬網格材料的影響下，更集中於一個方向上，從而獲得更大的應變數。 In the above embodiments (2) and (3), in addition to adjusting the long-axis direction of the metal mesh of the stroke first pressure sensing unit 621 and the second pressure sensing unit 631, the first pressure sensing unit 621 may be further formed by adjustment. The ratio of the total projection length in the c direction between the metal mesh and the mesh pattern of the metal mesh forming the second pressure sensitive unit 631 to the total projected length of the thin metal wire in the e direction, thereby making the patternless direction The strain of the first pressure sensing unit 621 is more concentrated in one direction than the second pressure sensing unit 631 having the same pattern direction, thereby obtaining a larger strain number under the influence of the metal mesh material having the directivity. .

在一些更優的實施方式中，位於所述第一壓感層的不同 區域(如第5A圖中所示的中心處、對角處、長邊中點處、短邊中點處等，區域分佈在此不受限制)構成所述第一壓感單元及與其相對應設置的所述第二壓感單元的材料可為不相同，具體材料的選擇可由不同區域對壓力感測靈敏度等因素而決定。如在一個變形實施方式中，處於中心處(如第5A圖中A處所示)區域的第一壓感單元採用具有方向性的金屬網格材料，而處於長邊中點處(如第5A圖中C處所示)區域的第一壓感單元則採用非金屬網格材料(無方向性)，而處於對角處區域(如第5A圖中B處所示)的第一壓感單元則採用無方向性的金屬網格材料，以使在所述壓力感測輸入裝置60的基板(圖未示)的不同受力區域，可獲得不同種的壓力感測效果。 In some more preferred embodiments, the difference in the first pressure sensitive layer The area (such as the center, the diagonal, the midpoint of the long side, the midpoint of the short side, etc., the area distribution is not limited herein) as shown in FIG. 5A, constitutes the first pressure sensing unit and corresponds thereto The material of the second pressure sensing unit may be different, and the selection of a specific material may be determined by factors such as pressure sensing sensitivity of different regions. As in a variant embodiment, the first pressure sensing unit at the center (as shown at A in Figure 5A) uses a metallic mesh material with directionality at the midpoint of the long side (eg 5A) The first pressure sensing unit of the region shown in the figure C is a non-metallic mesh material (non-directional), and the first pressure sensing unit at the diagonal region (as shown at B in FIG. 5A). The non-directional metal mesh material is used to obtain different kinds of pressure sensing effects in different stress regions of the substrate (not shown) of the pressure sensing input device 60.

與現有技術相比，本新型所提供的壓力感測輸入裝置至少具有如下的優點。 Compared with the prior art, the pressure sensing input device provided by the present invention has at least the following advantages.

1、本新型提供了一種具有溫度補償功能的壓力感測輸入裝置20，其包含一壓力感測輸入模組21，壓力感測輸入模組21包含設置在基板201上下表面的第一壓感單元202及第二壓感單元203，第一壓感單元202與第二壓感單元203對應設置且材料相同，至少一第一壓感單元202及與其對應設置的第二壓感單元203，與外設的兩個參考電阻(電阻Ra與電阻Rb)構成惠斯同電橋。 1. The present invention provides a pressure sensing input device 20 having a temperature compensation function, which includes a pressure sensing input module 21, and the pressure sensing input module 21 includes a first pressure sensing unit disposed on the upper and lower surfaces of the substrate 201. 202 and the second pressure sensing unit 203, the first pressure sensing unit 202 and the second pressure sensing unit 203 are correspondingly disposed and have the same material, at least one first pressure sensing unit 202 and a second pressure sensing unit 203 corresponding thereto, and Two reference resistors (resistor Ra and resistor Rb) are provided to form a Wheatstone bridge.

本新型中採用惠斯同電橋對按壓力值進行檢測，其電路結構簡單，控制精度高。由於構成第一壓感單元202及第二壓感單元203的材料相同，因此，第一壓感單元202及第二壓感單元203的由於溫度變化所帶來的電阻值的變化滿足(RF0-+鎠RF0)/(RC0+鎠RC0)=RF0/RC0，可見，由於第一壓感單元202及第二壓感單元203為同種材料且共同構成惠斯同電橋，在電阻值的測量過程中，溫度對第一 壓感單元202及第二壓感單元203的電阻值影響可以忽略，因此本新型所提供的壓力感測輸入模組21可以完全補償由於溫度引起的電阻值變化。 In the new model, the pressure value is detected by the Wheatstone bridge, and the circuit structure is simple and the control precision is high. Since the materials constituting the first pressure sensing unit 202 and the second pressure sensing unit 203 are the same, the change in the resistance value due to the temperature change of the first pressure sensing unit 202 and the second pressure sensing unit 203 satisfies (R F0 ) - 鎠 R F0 ) / (R C0 + 鎠 R C0 ) = R F0 / R C0 , it can be seen that since the first pressure sensing unit 202 and the second pressure sensing unit 203 are of the same material and together constitute a Wheatstone bridge, During the measurement of the resistance value, the influence of the temperature on the resistance values of the first pressure sensing unit 202 and the second pressure sensing unit 203 is negligible, so the pressure sensing input module 21 provided by the present invention can completely compensate for the temperature due to the temperature. The resistance value changes.

2、本新型所提供的壓力感測輸入裝置20中，基板201及貼合層22的楊氏模數、厚度影響壓力感測輸入裝置20的中性面，當中性面位於基板201中時，設置在基板201上下主表面的第一壓感單元211與第二壓感單元212之間的應變差可以達到最大值。因此，將基板201的楊氏模數設置為大於貼合層22的楊氏模數至少一個數量級前提下：(1)將貼合層22的楊氏模數控制在100-3000MPa的範圍內有利於增大上述應變差△ε；(2)將貼合層22的厚度限定在25-125μm範圍內時，應變差△ε將隨著貼合層22厚度的減小而呈增大趨勢；(3)將基板201的厚度限定在50-450μm範圍內時，應變差△ε將隨著基板201厚度的增大而呈增大趨勢。因此，通過調整壓力感測輸入裝置20的基板201及貼合層22的楊氏模數及其厚度，即可增大基板201上下表面的壓感單元的應變差異，從而使壓力大小檢測更加精准，按壓力度檢測更加靈敏。 2. In the pressure sensing input device 20 provided by the present invention, the Young's modulus and thickness of the substrate 201 and the bonding layer 22 affect the neutral plane of the pressure sensing input device 20, and when the neutral plane is located in the substrate 201, The strain difference between the first pressure sensitive unit 211 and the second pressure sensitive unit 212 disposed on the upper and lower main surfaces of the substrate 201 may reach a maximum value. Therefore, the Young's modulus of the substrate 201 is set to be at least one order of magnitude larger than the Young's modulus of the bonding layer 22: (1) It is advantageous to control the Young's modulus of the bonding layer 22 in the range of 100-3000 MPa. When the above-mentioned strain difference Δ ε is increased; (2) when the thickness of the bonding layer 22 is limited to the range of 25-125 μm, the strain difference Δ ε will increase as the thickness of the bonding layer 22 decreases; 3) When the thickness of the substrate 201 is limited to the range of 50 to 450 μm, the strain difference Δ ε will increase as the thickness of the substrate 201 increases. Therefore, by adjusting the Young's modulus of the substrate 201 and the bonding layer 22 of the pressure sensing input device 20 and the thickness thereof, the strain difference of the pressure sensing unit on the upper and lower surfaces of the substrate 201 can be increased, thereby making the pressure detection more accurate. The pressing force detection is more sensitive.

3、本新型所提供的壓力感測輸入裝置40中，第一壓感單元421與第二壓感單元為具有長軸方向和短軸方向，且長軸方向的匯流排長大於短軸方向的匯流排長的圖案設計。在本新型中還進一步對第一壓感單元421與第二壓感單元的圖案形狀包含橢圓繞線狀、折線狀、曲線狀、等長多段串聯線狀、不等長多段串聯線狀、回字型線狀等形狀。當手指按壓(點按壓)引起第一壓感單元421或第二壓感單元產生形變時，第一壓感單元421或第二壓感單元由於長軸a方向的總投影長度與短軸b方向的總投影長度不同，其a方向與b方向的應變也不同，因 此可以有效增大電阻值變化效果，進一步使第一壓感層或第二壓感層對壓力的回應更精准更靈敏。 3. In the pressure sensing input device 40 provided by the present invention, the first pressure sensing unit 421 and the second pressure sensing unit have a long axis direction and a short axis direction, and the bus bar length in the long axis direction is greater than the short axis direction. The pattern design of the bus bar. In the present invention, the pattern shape of the first pressure sensitive unit 421 and the second pressure sensitive unit further includes an elliptical winding shape, a polygonal line shape, a curved shape, an equal length multi-segment series linear shape, a unequal length multi-segment serial line shape, and a back The shape of the font is linear. When the finger pressing (point pressing) causes the first pressure sensing unit 421 or the second pressure sensing unit to deform, the first pressure sensing unit 421 or the second pressure sensing unit has a total projection length and a short axis b direction due to the long axis a direction. The total projection length is different, and the strain in the a direction and the b direction is also different. This can effectively increase the resistance value change effect, and further make the first pressure sensitive layer or the second pressure sensitive layer respond more accurately and sensitively to the pressure.

4、本新型所提供的壓力感測輸入裝置60中，為了使壓力感測輸入裝置60的可視區域也能置入高靈敏度的第一壓感單元621與第二壓感單元631，在本新型中可將顯示層(支撐層)內的第一壓感單元621及與其對應設置的第二壓感單元631限定為由金屬網格形成，金屬網格具有多種的網格圖案，通過使金屬網格的網格圖案具有沿一方向最大的細金屬線的總投影長度，使網格圖案具有方向性，從而獲得有方向性的金屬網格材料。調整第一壓感單元621、第二壓感單元631的圖案形狀的a方向(圖案形狀的長軸方向，朝某一方向具有最大的總投影長度)與其對應的金屬網格材料的網格圖案的c方向(網格圖案的長軸方向，朝某一方向具有最大的細金屬線的總投影長度)相對於第一壓感單元621、第二壓感單元631所在區域的最大應變方向之間夾角角度，並結合第一壓感單元621與第二壓感單元631的圖案形狀及網格圖案的網格單元的比例、大小的調整，從而可使第一壓感單元621與第二壓感單元631的應變差更大、獲得更好的壓力感測的靈敏度。 4. In the pressure sensing input device 60 provided by the present invention, in order to enable the visible region of the pressure sensing input device 60 to be placed in the high sensitivity first pressure sensing unit 621 and the second pressure sensing unit 631, The first pressure sensing unit 621 in the display layer (support layer) and the second pressure sensing unit 631 disposed corresponding thereto are defined as being formed by a metal mesh having a plurality of mesh patterns through the metal mesh The grid pattern has a total projected length of the largest thin metal line in one direction, making the grid pattern directional, thereby obtaining a directional metal grid material. Adjusting the a direction of the pattern shape of the first pressure sensitive unit 621 and the second pressure sensitive unit 631 (the long axis direction of the pattern shape, having the largest total projection length in a certain direction) and the mesh pattern of the corresponding metal mesh material The c direction (the long axis direction of the mesh pattern, the total projected length of the largest thin metal line in a certain direction) is between the maximum strain direction of the region where the first pressure sensitive unit 621 and the second pressure sensitive unit 631 are located The angle of the angle is combined with the pattern shape of the first pressure sensing unit 621 and the second pressure sensing unit 631 and the ratio and size of the grid unit of the grid pattern, so that the first pressure sensing unit 621 and the second pressure sensing layer can be made. The difference in strain of unit 631 is greater, resulting in better sensitivity of pressure sensing.

5、本新型所提供的壓力感測輸入裝置50中，為了達到上述第一壓感單元521的應變與第二壓感單元531的應變之間的差值可以達到較大值，從而提高壓力感測輸入裝置50的壓力偵測靈敏度，除了通過調整第一壓感單元521及第二壓感單元531的圖案形狀，還可以通過調整第一壓感單元521及第二壓感單元531的排布方式，從而增大或減小第一壓感單元521及第二壓感單元531的應變數。其中，當第一壓感單元521及第二壓感單元531的應變為一正一負時，角度a1與角度a2的角度範圍為0°-45°，當應變同為負應變時，角度a1為0°-45°，而角度 a2為45°-90°，或當應變同為正應變時，角度a1為45°-90°，而角度a2為0°-45°。此外，為了使第一壓感單元521及第二壓感單元531之間的應變差△ε較大，還可通過對第一壓感單元521及第二壓感單元531的圖案形狀關係進行了限定。上述條件的限制都可使第一壓感單元521及第二壓感單元531的應變變化值最大。第一壓感單元521在受到按壓作用力之後，在朝a方向上的應變數大於朝b方向上的應變數，如此，有利於施加在第一壓感單元521及第二壓感單元531上的按壓力所產生的應變可以集中在一個方向上體現，當這個應變集中的方向與此區域由於按壓作用力而產生的最大應變方向一致時，可以使第一壓感單元521及第二壓感單元531的應變差△ε更加，從而更精准地體現按壓力度的大小、提高壓力偵測的靈敏度。 5. In the pressure sensing input device 50 provided by the present invention, in order to achieve the difference between the strain of the first pressure sensing unit 521 and the strain of the second pressure sensing unit 531, a larger value can be achieved, thereby improving the pressure feeling. The pressure detecting sensitivity of the input device 50 is measured, and the arrangement of the first pressure sensing unit 521 and the second pressure sensing unit 531 can be adjusted by adjusting the pattern shape of the first pressure sensing unit 521 and the second pressure sensing unit 531. In a manner, the number of strains of the first pressure sensing unit 521 and the second pressure sensing unit 531 is increased or decreased. Wherein, when the strains of the first pressure sensing unit 521 and the second pressure sensing unit 531 are positive and negative, the angle range of the angle a1 and the angle a2 is 0°-45°, and when the strain is the same as the negative strain, the angle a1 0°-45°, and angle A2 is 45°-90°, or when the strain is positive strain, the angle a1 is 45°-90°, and the angle a2 is 0°-45°. Further, in order to make the strain difference Δε between the first pressure sensitive unit 521 and the second pressure sensitive unit 531 large, the pattern shape relationship between the first pressure sensitive unit 521 and the second pressure sensitive unit 531 can also be performed. limited. The limitation of the above conditions can maximize the strain change values of the first pressure sensitive unit 521 and the second pressure sensitive unit 531. After receiving the pressing force, the first pressure sensing unit 521 has a larger number of strains in the a direction than the number of strains in the b direction, and thus is advantageously applied to the first pressure sensing unit 521 and the second pressure sensing unit 531. The strain generated by the pressing force can be concentrated in one direction, and when the direction of the strain concentration coincides with the maximum strain direction generated by the pressing force in the region, the first pressure sensing unit 521 and the second pressure sensing can be made. The strain difference Δε of the unit 531 is more, thereby more accurately reflecting the magnitude of the pressing force and improving the sensitivity of the pressure detection.

6、本新型中的壓力感測輸入模組10、40及50中及壓力感測輸入裝置20，採用電阻式壓力感測，其通過壓感單元內部的形狀改變引起相應的阻值變化，從而根據阻值變化產生的位置和變化量的大小來判斷按壓點位置和按壓力量大小，利用同一壓感單元既進行位置檢測(平面二維)又進行力量檢測(第三維度)的計算，實現三維度的同時檢測。 6. The pressure sensing input modules 10, 40 and 50 and the pressure sensing input device 20 of the present invention adopt resistive pressure sensing, which cause a corresponding resistance change through a shape change inside the pressure sensing unit, thereby According to the position and the amount of change caused by the change of resistance value, the position of the pressing point and the magnitude of the pressing force are determined, and the same pressure sensing unit is used to perform both position detection (two-dimensional plane) and force detection (third dimension) to realize three. Simultaneous detection of dimensions.

以上僅為本新型的較佳實施例而已，並不用以限制本新型，凡在本新型的原則之內所作的任何修改，等同替換和改進等均應包含在本新型的保護範圍之內。 The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention are intended to be included within the scope of the present invention.

10‧‧‧壓力感測輸入模組 10‧‧‧ Pressure Sensing Input Module

11‧‧‧基板 11‧‧‧Substrate

12‧‧‧第一壓感層 12‧‧‧First pressure sensitive layer

13‧‧‧第二壓感層 13‧‧‧Second pressure sensitive layer

121‧‧‧第一壓感單元 121‧‧‧First pressure sensing unit

131‧‧‧第二壓感單元 131‧‧‧Second pressure sensing unit

Claims (33)

一壓力感測輸入裝置，包含：一蓋板；一支撐層；一壓力感測輸入模組，設置於該蓋板與該支撐層之間，該壓力感測輸入模組包含一基板及分別設置在該基板上下表面的一第一壓感層、一第二壓感層，該第一壓感層包含至少一第一壓感單元，該第二壓感層包含至少一第二壓感單元，該第一壓感單元與該第二壓感單元一一對應設置且材料相同；該蓋板與該壓力感測輸入模組之間以一第一貼合層相接合，該壓力感測輸入模組與該支撐層之間以一第二貼合層相接合；其中該基板的楊氏模數與該第一貼合層、該第二貼合層的楊氏模數的比值大於10。 The pressure sensing input device comprises: a cover plate; a support layer; a pressure sensing input module disposed between the cover plate and the support layer, the pressure sensing input module comprises a substrate and respectively arranged a first pressure sensitive layer and a second pressure sensitive layer on the upper and lower surfaces of the substrate, the first pressure sensitive layer comprising at least one first pressure sensing unit, the second pressure sensitive layer comprising at least one second pressure sensing unit, The first pressure sensing unit is disposed in one-to-one correspondence with the second pressure sensing unit and has the same material; the cover plate and the pressure sensing input module are joined by a first bonding layer, the pressure sensing input mode A second bonding layer is bonded between the group and the supporting layer; wherein a ratio of a Young's modulus of the substrate to a Young's modulus of the first bonding layer and the second bonding layer is greater than 10. 如申請專利範圍第1項所述之壓力感測輸入裝置，其中該第一貼合層、該第二貼合層的楊氏模數為100-3000MPa。 The pressure sensing input device according to claim 1, wherein the first bonding layer and the second bonding layer have a Young's modulus of 100-3000 MPa. 如申請專利範圍第1項所述之壓力感測輸入裝置，其中該第一貼合層、該第二貼合層的厚度為25-125μm。 The pressure sensing input device of claim 1, wherein the first bonding layer and the second bonding layer have a thickness of 25-125 μm. 如申請專利範圍第1項所述之壓力感測輸入裝置，其中該基板的厚度為50-450μm。 The pressure sensing input device of claim 1, wherein the substrate has a thickness of 50-450 μm. 如申請專利範圍第1項所述之壓力感測輸入裝置，其中該第一壓感單元與該第二壓感單元圖案形狀的面積為25mm2至225mm2。 The pressure sensing input device of claim 1, wherein an area of the first pressure sensitive unit and the second pressure sensitive unit pattern shape is 25 mm 2 to 225 mm 2 . 如申請專利範圍第1項所述之壓力感測輸入裝置，其中該第一壓感單元與其對應設置之該第二壓感單元構成惠斯同電橋的其中兩個電阻，用於檢測一按壓力度大小，且同時補償該壓力感測輸入模組由於溫度引起的電阻值變化。 The pressure sensing input device of claim 1, wherein the first pressure sensing unit and the second pressure sensing unit corresponding thereto are configured to constitute two resistors of the Wheatstone bridge for detecting a pressing The magnitude of the force, and at the same time compensates for the change in the resistance value of the pressure sensing input module due to temperature. 如申請專利範圍第1項所述之壓力感測輸入裝置，其中該壓力感測輸入模組更包含一第一參考電阻和一第二參考電阻，與至少一該第一壓感單元及對應設置的該第二壓感單元構成惠斯同電橋。 The pressure sensing input device of claim 1, wherein the pressure sensing input module further comprises a first reference resistor and a second reference resistor, and at least one of the first pressure sensing unit and corresponding setting The second pressure sensing unit constitutes a Wheatstone bridge. 如申請專利範圍第7項所述之壓力感測輸入裝置，其中構成該惠斯同電橋的方式係該第一壓感單元與該第一參考電阻串聯，對應設置的該第二壓感單元與該第二參考電阻係串聯。 The pressure sensing input device of claim 7, wherein the method for constructing the Wheatstone bridge is that the first pressure sensing unit is connected in series with the first reference resistor, and the second pressure sensing unit is correspondingly disposed. Connected to the second reference resistor in series. 如申請專利範圍第7項所述之壓力感測輸入裝置，其中構成該惠斯同電橋的方式係該第一壓感單元與對應設置的該第二壓感單元串聯，該第一參考電阻與該第二參考電阻係串聯。 The pressure sensing input device of claim 7, wherein the method for constructing the Wheatstone bridge is the first pressure sensing unit and the corresponding second pressure sensing unit are connected in series, the first reference resistor Connected to the second reference resistor in series. 如申請專利範圍第1項所述之壓力感測輸入裝置，其中該第一壓感單元呈陣列係設置於該基板上表面，則該壓力感測輸入模組可同時檢測三維信號。 The pressure sensing input device of claim 1, wherein the first pressure sensing unit is disposed on the upper surface of the substrate, and the pressure sensing input module can simultaneously detect the three-dimensional signal. 如申請專利範圍第1項所述之壓力感測輸入裝置，其中該壓力感測輸入裝置在受按壓形變後整體具有至少一中性面，該中性面的應變為0。 The pressure sensing input device of claim 1, wherein the pressure sensing input device has at least one neutral surface as a whole after being subjected to compression deformation, and the strain of the neutral surface is zero. 如申請專利範圍第11項所述之壓力感測輸入裝置，其中至少一該中性面的其中一者係位於該基板內，即該第一壓感單元的應變為負應變，該第二壓感單元的應變為正應變。 The pressure sensing input device of claim 11, wherein at least one of the neutral faces is located in the substrate, that is, the strain of the first pressure sensing unit is a negative strain, and the second pressure The strain of the sensing unit is positive strain. 如申請專利範圍第12項所述之壓力感測輸入裝置，其中位於該基板內的該中性面為該壓力感測輸入裝置的唯一中性面，且位於該基板的力學中心面。 The pressure sensing input device of claim 12, wherein the neutral plane located in the substrate is the only neutral plane of the pressure sensing input device and is located at a mechanical center plane of the substrate. 如申請專利範圍第11項所述之壓力感測輸入裝置，其中至少一個該中性面的任意一者均不位於該基板內，該第一壓感單元的應變與該第二壓感單元的應變同為負應變或正應變。 The pressure sensing input device of claim 11, wherein at least one of the neutral faces is not located in the substrate, the strain of the first pressure sensing unit and the second pressure sensing unit The strain is the same as negative strain or positive strain. 如申請專利範圍第13或14項所述之壓力感測輸入裝置，其中該第一壓感單元與該第二壓感單元均由一壓阻結構以一導線的形式彎折而成。 The pressure sensing input device of claim 13 or 14, wherein the first pressure sensing unit and the second pressure sensing unit are each bent by a piezoresistive structure in the form of a wire. 如申請專利範圍第15項所述之壓力感測輸入裝置，其中該壓阻結構包含氧化銦錫結構、氧化錫銻結構、氧化銦鋅結構、氧化鋅鋁結構、氧化鎵鋅結構、氧化銦鎵鋅結構、鎳納米線結構、鉑納米線結構、銀納米線結構、聚3，4-乙烯 二氧噻吩結構、石墨烯結構或碳納米管結構中的一種或多種。 The pressure sensing input device according to claim 15, wherein the piezoresistive structure comprises an indium tin oxide structure, a tin oxide structure, an indium zinc oxide structure, a zinc aluminum oxide structure, a gallium zinc oxide structure, and an indium gallium oxide. Zinc structure, nickel nanowire structure, platinum nanowire structure, silver nanowire structure, poly 3,4-ethylene One or more of a dioxythiophene structure, a graphene structure, or a carbon nanotube structure. 如申請專利範圍第14項所述之壓力感測輸入裝置，其中該第一壓感單元及/或該第二壓感單元的圖案設計為朝一方向的總投影長度最大，該方向為該第一壓感單元及/或該第二壓感單元的a方向，該第一壓感單元與該第二壓感單元的圖案朝一方向的總投影長度最小，該方向為b方向，其中，該a方向與該b方向垂直。 The pressure sensing input device of claim 14, wherein the pattern of the first pressure sensing unit and/or the second pressure sensing unit is designed to have a total projection length in one direction, the direction being the first a direction of the pressure sensing unit and/or the second pressure sensing unit, wherein a total projection length of the pattern of the first pressure sensing unit and the second pressure sensing unit in one direction is the smallest, and the direction is a b direction, wherein the a direction It is perpendicular to the b direction. 如申請專利範圍第17項所述之壓力感測輸入裝置，其中該第一壓感單元與該第二壓感單元的圖案形狀包含橢圓繞線狀、折線狀、曲線狀、等長多段串聯線狀、不等長多段串聯線狀或回字型線狀的一種或以上組合。 The pressure sensing input device of claim 17, wherein the pattern shape of the first pressure sensing unit and the second pressure sensing unit comprises an elliptical winding shape, a polygonal line shape, a curved shape, an equal length multi-segment serial line. One or more combinations of a plurality of segments of a line shape or a line shape that are unequal lengths. 如申請專利範圍第18項所述之壓力感測輸入裝置，其中該第一壓感單元對應設置的該第二壓感單元的形狀不相同。 The pressure sensing input device of claim 18, wherein the shape of the second pressure sensing unit corresponding to the first pressure sensing unit is different. 如申請專利範圍第17項所述之壓力感測輸入裝置，其中該第一壓感單元的該a方向與該第一壓感單元所在區域的最大應變方向的夾角呈角度a1，該第二壓感單元的該a方向與第二壓感單元所在區域的最大應變方向的夾角呈角度a2；當應變為一正應變、一負應變時，角度a1與角度a2的角度範圍為0°-45°；當應變同為負應變時，角度a1為0°-45°，角度a2為45°-90°；或當應變同為正應變時，角度a1為45°-90°，角度a2為0°-45°。 The pressure sensing input device of claim 17, wherein the angle between the a direction of the first pressure sensing unit and the maximum strain direction of the region where the first pressure sensing unit is located is an angle a1, the second pressure The angle between the a direction of the sensing unit and the maximum strain direction of the region where the second pressure sensing unit is located is an angle a2; when the strain is a positive strain and a negative strain, the angle range of the angle a1 and the angle a2 is 0°-45°. When the strain is the same as the negative strain, the angle a1 is 0°-45°, the angle a2 is 45°-90°; or when the strain is positive strain, the angle a1 is 45°-90°, and the angle a2 is 0°. -45°. 如申請專利範圍第20項所述之壓力感測輸入裝置，其中，當應變為一正應變、一負應變時，角度a1與角度a2的角度範圍為0°-45°；當應變同為負應變時，角度a1為0°，角度a2為90°；或當應變同為正應變時，角度a1為90°，角度a2為0°。 The pressure sensing input device according to claim 20, wherein when the strain is a positive strain and a negative strain, the angle range of the angle a1 and the angle a2 is 0°-45°; when the strain is negative When straining, the angle a1 is 0° and the angle a2 is 90°; or when the strain is positive strain, the angle a1 is 90° and the angle a2 is 0°. 如申請專利範圍第19項所述之壓力感測輸入裝置，其中當應變同為負應變時，該第一壓感單元與該第二壓感單元的圖案形狀的關係表示為：L上a/L上b>L下a/L下b其中，L上a表示為該第一壓感單元的朝該a方向的總投影長度，L上b表示為該第一壓感單元的朝該b方向的總投影長度，L下a表示為該第二壓感單元的朝該a方向的總投影長度，L下b表示為該第二壓感單元的朝該b方向的總投影長度。 The pressure sensing input device of claim 19, wherein when the strain is the same as the negative strain, the relationship between the pattern shape of the first pressure sensing unit and the second pressure sensing unit is expressed as: L on a / L a b> a at L / L under b wherein L a represents that the first pressure-sensing unit toward a direction of the total projected length, L b represents that the first pressure-sensing unit in the direction of the b total projected length, L represents a lower second pressure sensing that a direction toward the total projected length of the unit, L b represents that the total projected length of the second pressure sensing unit b towards this direction. 如申請專利範圍第19項所述之壓力感測輸入裝置，其中當應變同為正應變時，該第一壓感單元與該第二壓感單元的圖案形狀的關係表示為：L上a/L上b<L下a/L下b其中，L上a表示為該第一壓感單元的朝該a方向的總投影長度，L上b表示為該第一壓感單元的朝該b方向的總投影長度，L下a表示為該第二壓感單元的朝該a方向的總投影長度，L下b表示為該第二壓感單元的朝b方向的總投影長度。 The pressure sensing input device according to claim 19, wherein when the strain is the same as the positive strain, the relationship between the pattern shape of the first pressure sensing unit and the second pressure sensing unit is expressed as: L on a / L upper b < L lower a / L lower b where L is the total projection length of the first pressure sensitive unit in the a direction, and b is the upper direction of the first pressure sensitive unit total projected length, L represents a lower second pressure sensing that a direction toward the total projected length of the unit, L represents the total projected length b for the second direction b toward the pressure sensing unit. 如申請專利範圍第11-14項所述之任一壓力感測輸入裝置，其中該第一壓感單元與該第二壓感單元均由一金屬網格形成，該金屬網格由細金屬線以網格圖案的形式形成。 The pressure sensing input device of any one of claims 11-14, wherein the first pressure sensing unit and the second pressure sensing unit are each formed by a metal mesh formed by a thin metal wire Formed in the form of a grid pattern. 如申請專利範圍第24項所述之壓力感測輸入裝置，其中該金屬網格為有方向性的金屬網格，該金屬網格的網格圖案為朝一方向的細金屬線的總投影長度最大，該方向為該網格圖案的c方向，該網格圖案朝一方向的細金屬線的總投影最小，該方向為e方向，其中，該c方向與該e方向垂直。 The pressure sensing input device according to claim 24, wherein the metal mesh is a directional metal mesh, and the mesh pattern of the metal mesh is the total projection length of the thin metal wire in one direction is the largest. The direction is the c direction of the grid pattern, the total projection of the thin metal line of the grid pattern toward one direction being the smallest, the direction being the e direction, wherein the c direction is perpendicular to the e direction. 如申請專利範圍第25項所述之壓力感測輸入裝置，其中該網格圖案具有一長軸方向，該長軸方向與該網格圖案的該c方向。 The pressure sensing input device of claim 25, wherein the mesh pattern has a long axis direction and the c direction of the mesh pattern. 如申請專利範圍第26項所述之壓力感測輸入裝置，其中該第一壓感單元的金屬網格的網格圖案與該第二壓感單元的金屬網格的網格圖案及其長軸方向均不相同。 The pressure sensing input device of claim 26, wherein the mesh pattern of the metal mesh of the first pressure sensing unit and the mesh pattern of the metal mesh of the second pressure sensing unit and the long axis thereof The directions are different. 如申請專利範圍第27項所述之壓力感測輸入裝置，其中該第一壓感單元的網格圖案的該c方向與其所在區域的最大應變方向的夾角呈角度d1，該第二壓感單元的網格圖案的該c方向與其所在區域的最大應變方向的夾角呈角度d2；當應變為一正應變、一負應變時，該角度d1與該角度d2的角度範圍為0°-45°；或當應變同為負應變時，角度d1為0°-45°，角度d2為45°-90°；或 當應變同為正應變時，角度d1為45°-90°，角度d2為0°-45°。 The pressure sensing input device of claim 27, wherein the c direction of the grid pattern of the first pressure sensing unit is at an angle d1 to an angle of a maximum strain direction of the region in which the region is located, the second pressure sensing unit The angle between the c direction of the grid pattern and the maximum strain direction of the region in which it is located is an angle d2; when the strain is a positive strain and a negative strain, the angle d1 and the angle d2 are in the range of 0°-45°; Or when the strain is the same as the negative strain, the angle d1 is 0°-45°, and the angle d2 is 45°-90°; or When the strain is the same as the normal strain, the angle d1 is 45°-90°, and the angle d2 is 0°-45°. 如申請專利範圍第28項所述之壓力感測輸入裝置，其中，當應變為一正應變、一負應變時，該角度d1與該角度d2的角度範圍為0°；當應變同為負應變時，角度d1為0°，角度d2為90°；或當應變同為正應變時，角度d1為90°，角度d2為0°。 The pressure sensing input device according to claim 28, wherein when the strain is a positive strain and a negative strain, the angle d1 and the angle d2 are in an angular range of 0°; when the strain is a negative strain When the angle d1 is 0° and the angle d2 is 90°; or when the strain is positive strain, the angle d1 is 90° and the angle d2 is 0°. 如申請專利範圍第29項所述之壓力感測輸入裝置，其中當應變同為負應變時，該第一壓感單元的金屬網格及形成該第二壓感單元的金屬網格的網格圖案，具體如下：Lc1/Le1<Lc2/Le2其中，Lc1表示為形成該第一壓感單元的金屬網格的網格圖案朝該c方向的細金屬線的總投影長度，Le1表示為形成該第一壓感單元的金屬網格的網格圖案朝該e方向的細金屬線的總投影長度，Lc2表示為形成該第一壓感單元的金屬網格的網格圖案朝該c方向的細金屬線的總投影長度，Le2表示為形成該第一壓感單元的金屬網格的網格圖案朝該e方向的細金屬線的總投影長度。 The pressure sensing input device of claim 29, wherein when the strain is the same as the negative strain, the metal mesh of the first pressure sensitive unit and the mesh of the metal mesh forming the second pressure sensitive unit a pattern, specifically as follows: L c1 /L e1 <L c2 /L e2 wherein L c1 represents the total projected length of the thin metal line of the metal mesh forming the first pressure sensitive unit toward the c direction, L e1 represents the total projected length of the thin metal line of the metal mesh forming the first pressure sensitive unit toward the e direction, and L c2 represents the mesh of the metal mesh forming the first pressure sensitive unit The total projected length of the thin metal line of the pattern toward the c direction, L e2 is the total projected length of the thin metal line of the metal mesh forming the first pressure sensitive unit toward the e direction. 如申請專利範圍第27項所述之壓力感測輸入裝置，其中當應變同為正應變時，該第一壓感單元的金屬網格及形成該第二壓感單元的金屬網格的網格圖案，具體如下：Lc1/Le1>Lc2/Le2其中，Lc1表示為形成該第一壓感單元的金屬網格的網格圖案朝該 c方向的細金屬線的總投影長度，Le1表示為形成該第一壓感單元的金屬網格的網格圖案朝該e方向的細金屬線的總投影長度，Lc2表示為形成該第一壓感單元的金屬網格的網格圖案朝該c方向的細金屬線的總投影長度，Le2表示為形成該第一壓感單元的金屬網格的網格圖案朝該e方向的細金屬線的總投影長度。 The pressure sensing input device of claim 27, wherein when the strain is the same as the positive strain, the metal mesh of the first pressure sensitive unit and the mesh of the metal mesh forming the second pressure sensitive unit a pattern, specifically as follows: L c1 /L e1 >L c2 /L e2 wherein L c1 represents the total projected length of the thin metal line of the metal mesh forming the first pressure sensitive unit toward the c direction, L e1 represents the total projected length of the thin metal line of the metal mesh forming the first pressure sensitive unit toward the e direction, and L c2 represents the mesh of the metal mesh forming the first pressure sensitive unit The total projected length of the thin metal line of the pattern toward the c direction, L e2 is the total projected length of the thin metal line of the metal mesh forming the first pressure sensitive unit toward the e direction. 如申請專利範圍第25-31項中任一項所述之壓力感測輸入裝置，其中該網格圖案包含至少一種網格單元，複數個該網格單元排布形成該網格圖案。 The pressure sensing input device of any one of claims 25-31, wherein the grid pattern comprises at least one grid unit, the plurality of grid units being arranged to form the grid pattern. 如申請專利範圍第1項所述之壓力感測輸入裝置，其中該支撐層為一顯示層。 The pressure sensing input device of claim 1, wherein the support layer is a display layer.
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