TWM537260U - Force-touch sensing device with metal traces - Google Patents
Force-touch sensing device with metal traces Download PDFInfo
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- TWM537260U TWM537260U TW105207380U TW105207380U TWM537260U TW M537260 U TWM537260 U TW M537260U TW 105207380 U TW105207380 U TW 105207380U TW 105207380 U TW105207380 U TW 105207380U TW M537260 U TWM537260 U TW M537260U
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Description
本創作係有關於一種壓力觸控裝置，特別是一種具金屬走線的壓力觸控裝置。 The present invention relates to a pressure touch device, and more particularly to a pressure touch device with a metal trace.
輕薄短小的行動裝置帶動觸控顯示面板的潮流，且由於觸控的人機界面技術成熟與使用者對3D觸控的操作需求不斷提昇，壓力觸控的技術也隨之推陳出新；習知之壓力觸控顯示面板往往將微機電之壓力感測器置於顯示面板之邊緣或角落，藉以感測面板表面之觸碰壓力，不僅感測器成本高昂且貼合不易。也有以複雜製程製作細微可變形之彈性微結構，增加壓力與變形量之相關性，藉此產生較多的物理量變動以利偵測；故壓力感測觸控面板仍有改善之空間。 The thin and short mobile device drives the trend of the touch display panel, and due to the mature human touch interface technology and the increasing user demand for 3D touch operation, the pressure touch technology is also updated; the pressure of the conventional touch The control display panel often places the MEMS pressure sensor on the edge or corner of the display panel, thereby sensing the touch pressure of the panel surface, which is not only costly but also difficult to fit. There are also complex microstructures that produce finely deformable elastic microstructures, which increase the correlation between pressure and deformation, thereby generating more physical quantity changes for detection; therefore, the pressure sensing touch panel still has room for improvement.
為改善上述習知技術之缺點，本創作之目的在於提供一種具金屬走線的壓力觸控裝置。 In order to improve the shortcomings of the above prior art, the purpose of the present invention is to provide a pressure touch device with a metal trace.
為達成本創作之上述目的，本創作提供一種具金屬走線的壓力觸控裝置，包含：一上基板；一金屬走線層，設置於該上基板之一表面，包含複 數條金屬走線；一透明觸控電極層，設置於該金屬走線層之一側，包含複數個透明觸控電極；一絕緣層，位於該金屬走線層與該透明觸控電極層之間；一透明壓力電極層，設置於該透明觸控電極層背對該絕緣層之一側，包含至少一個透明壓力電極；一彈性介電材料層，位於該透明觸控電極層與該透明壓力電極層之間；及一電容偵測電路，依序或隨機將一觸控電容激勵訊號施加於選定之該透明觸控電極，並自選定之該透明觸控電極輸入一感應訊號作觸控偵測操作；該電容偵測電路更將一壓力電容激勵訊號施加於該至少一個透明壓力電極，且依序或隨機將一對應激勵訊號施加於選定之該透明觸控電極，並自該透明壓力電極輸入一感應訊號作壓力偵測操作。 In order to achieve the above object of the present invention, the present invention provides a pressure touch device with a metal trace, comprising: an upper substrate; a metal trace layer disposed on a surface of the upper substrate, including a plurality of metal traces; a transparent touch electrode layer disposed on one side of the metal trace layer, comprising a plurality of transparent touch electrodes; an insulating layer disposed on the metal trace layer and the transparent touch electrode layer a transparent pressure electrode layer disposed on one side of the transparent touch electrode layer facing the insulating layer, comprising at least one transparent pressure electrode; an elastic dielectric material layer located at the transparent touch electrode layer and the transparent pressure Between the electrode layers; and a capacitance detecting circuit, sequentially or randomly applying a touch capacitor excitation signal to the selected transparent touch electrode, and inputting an inductive signal from the selected transparent touch electrode for touch detection The capacitance detecting circuit further applies a pressure capacitive excitation signal to the at least one transparent pressure electrode, and sequentially or randomly applies a corresponding excitation signal to the selected transparent touch electrode, and from the transparent pressure electrode Input a sensing signal for pressure detection operation.
為達成本創作之上述一目的，本創作提供一種具金屬走線的壓力觸控裝置，包含：一上基板；一金屬走線暨觸控電極層，設置於該上基板之一表面，包含複數條共平面金屬走線與複數個透明觸控電極；一透明壓力電極層，設置於該金屬走線暨觸控電極層之一側，包含至少一個透明壓力電極；一彈性介電材料層，位於該金屬走線暨觸控電極層與該透明壓力電極層之間，包含一彈性膠質材料，該彈性膠質材料遇壓力時體積壓縮變形，並於除去壓力時回復原有的體積與形狀；及一電容偵測電路，依序或隨機將一觸控電容激勵訊號施加於選定之該透明觸控電極，並自選定之該透明觸控電極輸入一感應訊號作觸控偵測操作；該電容偵測電路更將一壓力電容激勵訊號施加於該至少一個透明壓力電極，且依序或隨機將一對應激勵訊號施加於選定之該透明觸控電極，並自該透明壓力電極輸入一感應訊號作壓力偵測操作；其中，該些複數個透明觸控電極面積對該至少一個透明壓力電極面積之投影重疊覆蓋率不小於百分之九十。 In order to achieve the above object of the present invention, the present invention provides a pressure touch device with a metal trace, comprising: an upper substrate; a metal trace and a touch electrode layer disposed on a surface of the upper substrate, including plural a coplanar metal trace and a plurality of transparent touch electrodes; a transparent pressure electrode layer disposed on one side of the metal trace and the touch electrode layer, comprising at least one transparent pressure electrode; an elastic dielectric material layer located at The metal trace and the touch electrode layer and the transparent pressure electrode layer comprise an elastic colloidal material, and the elastic colloidal material is compressed and deformed under pressure, and returns to the original volume and shape when the pressure is removed; The capacitance detecting circuit sequentially or randomly applies a touch capacitor excitation signal to the selected transparent touch electrode, and inputs a sensing signal from the selected transparent touch electrode for touch detection operation; the capacitance detection The circuit further applies a pressure capacitive excitation signal to the at least one transparent pressure electrode, and sequentially or randomly applies a corresponding excitation signal to the selected transparent touch electrode. And pressure from the transparent electrode for inputting a sensing signal pressure detection operation; projection overlapping coverage wherein the plurality of plurality of transparent touch electrode area of the electrode area of the at least one transparent pressure of not less than ninety percent.
本創作之功效在於使用壓力觸控裝置時，因為金屬走線與透明觸控電極層共平面或是彼此相疊，因此可增加顯示的均勻度。 The effect of this creation is that when the pressure touch device is used, since the metal traces and the transparent touch electrode layers are coplanar or overlap each other, the uniformity of display can be increased.
10‧‧‧具金屬走線的壓力觸控裝置 10‧‧‧pressure touch devices with metal traces
100‧‧‧上基板 100‧‧‧Upper substrate
100a‧‧‧第一表面 100a‧‧‧ first surface
100b‧‧‧第二表面 100b‧‧‧ second surface
200‧‧‧透明觸控電極層 200‧‧‧Transparent touch electrode layer
200'‧‧‧金屬走線暨觸控電極層 200'‧‧‧Metal trace and touch electrode layer
210,TE11~TE18,TE21~TE28,TE31~TE38‧‧‧透明觸控電極 210, TE11~TE18, TE21~TE28, TE31~TE38‧‧‧ transparent touch electrode
250‧‧‧金屬走線層 250‧‧‧metal trace layer
252,254,255‧‧‧金屬走線 252,254,255‧‧‧Metal trace
260‧‧‧絕緣層 260‧‧‧Insulation
300,300'‧‧‧透明壓力電極層 300,300'‧‧‧ Transparent pressure electrode layer
310,310a,310b‧‧‧透明壓力電極 310,310a, 310b‧‧‧ Transparent pressure electrode
320‧‧‧偏光層 320‧‧‧ polarizing layer
400‧‧‧彈性介電材料層 400‧‧‧Elastic dielectric material layer
500‧‧‧下基板 500‧‧‧lower substrate
50‧‧‧電容偵測電路 50‧‧‧Capacitance detection circuit
52‧‧‧電容激勵驅動電路 52‧‧‧Capacitor excitation drive circuit
520‧‧‧訊號源 520‧‧‧Signal source
522‧‧‧驅動器 522‧‧‧ drive
53‧‧‧直流參考電壓 53‧‧‧DC reference voltage
54‧‧‧電容讀取電路 54‧‧‧Capacitor reading circuit
56‧‧‧同相放大器 56‧‧‧In-phase amplifier
59‧‧‧反相放大器 59‧‧‧Inverting amplifier
Vc1‧‧‧觸控感應訊號 Vc1‧‧‧ touch sensing signal
Vc2‧‧‧壓力感應訊號 Vc2‧‧‧pressure sensing signal
Va‧‧‧輔助訊號 Va‧‧Auxiliary signal
Vs‧‧‧觸控電容激勵訊號 Vs‧‧‧Touch Capacitor Excitation Signal
Vp‧‧‧壓力電容激勵訊號 Vp‧‧‧pressure capacitor excitation signal
Vp1‧‧‧遮蔽訊號 Vp1‧‧‧ shadow signal
Vo‧‧‧對應激勵訊號 Vo‧‧‧ corresponding incentive signal
60‧‧‧感應電極 60‧‧‧Induction electrode
542‧‧‧第一阻抗 542‧‧‧First impedance
522a‧‧‧第二阻抗 522a‧‧‧second impedance
522b‧‧‧第三阻抗 522b‧‧‧ third impedance
540‧‧‧差動放大器 540‧‧‧Differential Amplifier
544‧‧‧第一電容 544‧‧‧first capacitor
62‧‧‧第一雜散電容 62‧‧‧First stray capacitance
64‧‧‧第二雜散電容 64‧‧‧Second stray capacitance
540a,540b‧‧‧輸入端 540a, 540b‧‧‧ input
540c‧‧‧輸出端 540c‧‧‧output
圖1A為依據本創作一實施例之具金屬走線的壓力觸控裝置之疊層示意圖。 FIG. 1A is a schematic diagram of a stack of pressure touch devices with metal traces according to an embodiment of the present invention. FIG.
圖1B為依據本創作另一實施例之具金屬走線的壓力觸控裝置之疊層示意圖。 FIG. 1B is a schematic diagram of a stack of pressure touch devices with metal traces according to another embodiment of the present invention.
圖1C為依據本創作另一實施例之具金屬走線的壓力觸控裝置之疊層示意圖。 FIG. 1C is a schematic diagram of a stack of pressure touch devices with metal traces according to another embodiment of the present invention.
圖2A為依據本創作另一實施例之具金屬走線的壓力觸控裝置之疊層示意圖。 2A is a schematic diagram of a stack of pressure touch devices with metal traces according to another embodiment of the present invention.
圖2B為依據本創作另一實施例之具金屬走線的壓力觸控裝置之疊層示意圖。 FIG. 2B is a schematic diagram of a stack of pressure touch devices with metal traces according to another embodiment of the present invention. FIG.
圖2C為依據本創作另一實施例之具金屬走線的壓力觸控裝置之疊層示意圖。 2C is a schematic diagram of a stack of pressure touch devices with metal traces according to another embodiment of the present invention.
圖3A為依據本創作一實施例之具金屬走線的壓力觸控裝置之上視圖。 3A is a top view of a pressure touch device with metal traces in accordance with an embodiment of the present invention.
圖3B為依據本創作一實施例之具金屬走線的壓力觸控裝置之示意圖。 FIG. 3B is a schematic diagram of a pressure touch device with a metal trace according to an embodiment of the present invention.
圖4A為依據本創作另一實施例之具金屬走線的壓力觸控裝置之上視圖。 4A is a top view of a pressure touch device with metal traces in accordance with another embodiment of the present invention.
圖4B為依據本創作另一實施例之具金屬走線的壓力觸控裝置之示意圖。 4B is a schematic diagram of a pressure touch device with a metal trace according to another embodiment of the present invention.
圖5A為依據本創作另一實施例之具金屬走線的壓力觸控裝置之示意圖。 FIG. 5A is a schematic diagram of a pressure touch device with a metal trace according to another embodiment of the present invention.
圖5B為依據本創作另一實施例之具金屬走線的壓力觸控裝置之示意圖。 FIG. 5B is a schematic diagram of a pressure touch device with a metal trace according to another embodiment of the present invention.
圖6為依據本創作一實施例之具金屬走線的壓力觸控裝置之部份上視圖。 6 is a partial top view of a pressure touch device with metal traces in accordance with an embodiment of the present invention.
圖7A為依據本創作另一實施例之具金屬走線的壓力觸控裝置之上視圖。 7A is a top view of a pressure touch device with metal traces in accordance with another embodiment of the present invention.
圖7B為依據本創作另一實施例之具金屬走線的壓力觸控裝置之示意圖。 FIG. 7B is a schematic diagram of a pressure touch device with a metal trace according to another embodiment of the present invention.
圖8A及8B為依據本創作一實施例之具金屬走線的壓力觸控裝置之金屬走線細部結構。 8A and 8B illustrate a metal trace detail structure of a pressure touch device with a metal trace according to an embodiment of the present invention.
圖9為依據本創作之一具體實例之自電容偵測電路之示意圖。 FIG. 9 is a schematic diagram of a self-capacitance detecting circuit according to one embodiment of the present invention.
有關本創作的詳細說明及技術內容，請參閱以下的詳細說明和附圖說明如下，須知附圖與詳細說明僅作為說明之用，並非用於限制本創作之權利範圍。 The detailed description and technical contents of the present invention are to be understood as the following detailed description and the accompanying drawings.
請參考圖1A，為依據本創作一具體實施例之具金屬走線的壓力觸控裝置10之疊層示意圖，該具金屬走線的壓力觸控裝置10包含由上而下之一上基板100、一金屬走線層250、一絕緣層260、一透明觸控電極層200、一彈性介電材料層400、一偏光層320、一透明壓力電極層300及一下基板500，其中該上基板具有一第一表面100a、一第二表面100b；該金屬走線層250係設置於該上基板100之 該第二表面100b，該金屬走線層250包含複數條金屬走線；該透明觸控電極層200係設置於該金屬走線層250背對該上基板100之一側，該透明觸控電極層200包含複數個透明觸控電極210，但是須知此圖所示僅為一側視圖，因此透明觸控電極210之數量及分布方式不限於此；該絕緣層260位於該金屬走線層250與該透明觸控電極層200之間；該透明壓力電極層300係設置於該透明觸控電極層200背對該上基板100之一側，該透明壓力電極層300包含至少一個透明壓力電極；該彈性介電材料層400係位於該透明觸控電極層200與該透明壓力電極層300之間；該偏光層320係設置於該彈性介電材料層400背對該透明觸控電極層200之一側；該下基板500係設置於該透明壓力電極層300背對該偏光層320之一側。 Please refer to FIG. 1A , which is a schematic diagram of a stacked layer of a pressure touch device 10 with a metal trace according to an embodiment of the present invention. The pressure touch device 10 with a metal trace includes an upper substrate 100 from top to bottom. a metal wiring layer 250, an insulating layer 260, a transparent touch electrode layer 200, an elastic dielectric material layer 400, a polarizing layer 320, a transparent pressure electrode layer 300, and a lower substrate 500, wherein the upper substrate has a first surface 100a and a second surface 100b; the metal trace layer 250 is disposed on the upper substrate 100 The second surface 100b includes a plurality of metal traces. The transparent touch electrode layer 200 is disposed on a side of the metal trace layer 250 opposite to the upper substrate 100. The transparent touch electrode The layer 200 includes a plurality of transparent touch electrodes 210. However, the figure is only a side view. Therefore, the number and distribution of the transparent touch electrodes 210 are not limited thereto. The insulating layer 260 is located on the metal trace layer 250. The transparent pressure electrode layer 300 is disposed on one side of the transparent touch electrode layer 200 facing the upper substrate 100, and the transparent pressure electrode layer 300 includes at least one transparent pressure electrode; The elastic dielectric material layer 400 is disposed between the transparent touch electrode layer 200 and the transparent pressure electrode layer 300. The polarizing layer 320 is disposed on the elastic dielectric material layer 400 opposite to the transparent touch electrode layer 200. The lower substrate 500 is disposed on one side of the transparent pressure electrode layer 300 facing away from the polarizing layer 320.
請參考圖1B~1C，為說明本創作之具金屬走線的壓力觸控裝置10其餘實現方式之示意圖。圖1B實施例大致與圖1A所示者類似，然在此實施例中，該透明壓力電極層300係為可具有偏光作用之透明壓力電極層300'，該透明壓力電極300'係設置於彈性介電材料層400及該下基板500之間。參見圖1C，此實施例大致與圖1A所示者類似，然在此實施例中，該偏光層320與該透明壓力電極層300之位置交換，即該具金屬走線的壓力觸控裝置10由上而下之一上基板100、一金屬走線層250、一絕緣層260、一透明觸控電極層200、一彈性介電材料層400、一透明壓力電極層300、一偏光層320及一下基板500。 Please refer to FIG. 1B to FIG. 1C for a schematic diagram of the remaining implementations of the pressure touch device 10 with metal traces. The embodiment of FIG. 1B is substantially similar to that shown in FIG. 1A. However, in this embodiment, the transparent pressure electrode layer 300 is a transparent pressure electrode layer 300 ′ having a polarizing effect, and the transparent pressure electrode 300 ′ is disposed on the elastic layer. Between the dielectric material layer 400 and the lower substrate 500. Referring to FIG. 1C, this embodiment is substantially similar to that shown in FIG. 1A. However, in this embodiment, the position of the polarizing layer 320 and the transparent pressure electrode layer 300 is exchanged, that is, the metal touch screen pressure touch device 10 An upper substrate 100, a metal wiring layer 250, an insulating layer 260, a transparent touch electrode layer 200, an elastic dielectric material layer 400, a transparent pressure electrode layer 300, a polarizing layer 320, and The substrate 500 is next.
參見圖5A，為說明本創作一具體實例之具金屬走線的壓力觸控裝置10於觸控操作之之示意圖。該具金屬走線的壓力觸控裝置10例如可參見圖1C所示範例，但是在此省略偏光層320及下基板500，以簡化說明。如此圖所示，該透明觸控電極層200包含複數個透明觸控電極210，例如透明觸控電極TE21~TE28，但是須知此圖所示僅為一側視圖，因此透明觸控電極及分布方式不限於此。該具金屬走線的壓力觸控裝置10更包含一電容偵測電路50，該電容偵測電路50包含一電容激勵驅動電路52及一電容讀取電路54。 Referring to FIG. 5A, a schematic diagram of a touch control device with a metal trace in a touch operation is illustrated. For example, the pressure touch device 10 with a metal trace can be seen in the example shown in FIG. 1C, but the polarizing layer 320 and the lower substrate 500 are omitted here to simplify the description. As shown in the figure, the transparent touch electrode layer 200 includes a plurality of transparent touch electrodes 210, such as transparent touch electrodes TE21~TE28, but it should be understood that the figure is only a side view, so the transparent touch electrodes and the distribution manner Not limited to this. The metal touch control device 10 further includes a capacitance detecting circuit 50. The capacitance detecting circuit 50 includes a capacitive excitation driving circuit 52 and a capacitance reading circuit 54.
此電容激勵驅動電路52包含一訊號源520及一驅動器522，並依序或隨機將一觸控電容激勵訊號(stimulus signal)Vs施加於選定之透明觸控電極(例如透明觸控電極TE24)。此外電容激勵驅動電路52將該觸控電容激勵訊號Vs送至一同相放大器56，該同相放大器56之增益值較佳為一，以產生與該觸控電容激勵訊號Vs同相位之輔助訊號(auxiliary signal)Va，此輔助訊號Va施加於至少一個透明壓力電極。由於在至少一個透明壓力電極施加與該觸控電容激勵訊號Vs同相位之訊號，等效上即可在對應選定透明觸控電極TE24與至少一個透明壓力電極之間產生沒有電壓差或是幾乎沒有電壓差的狀態，亦即不會有電容產生或是僅有微量電容產生(不至於影響觸控感測結果之微量電容)，即可避免在偵測對應選定透明觸控電極TE24之觸控操作時，因為彈性介電材料層400受壓翹曲而產生電容的干擾，同時亦阻絕了經由透明壓力電極與接地點間電容並聯效應引發之干擾。 The capacitive excitation driving circuit 52 includes a signal source 520 and a driver 522, and sequentially or randomly applies a touch capacitor excitation signal Vs to the selected transparent touch electrode (for example, the transparent touch electrode TE24). In addition, the capacitor excitation driving circuit 52 sends the touch capacitor excitation signal Vs to a non-inverting amplifier 56. The gain value of the non-inverting amplifier 56 is preferably one to generate an auxiliary signal in phase with the touch capacitor excitation signal Vs (auxiliary). Signal) Va, the auxiliary signal Va is applied to at least one transparent pressure electrode. Since at least one transparent pressure electrode applies a signal having the same phase as the touch capacitance excitation signal Vs, equivalently, no voltage difference or almost no difference can be generated between the corresponding selected transparent touch electrode TE24 and the at least one transparent pressure electrode. The state of the voltage difference, that is, no capacitance is generated or only a small amount of capacitance is generated (the micro-capacitance that does not affect the touch sensing result) can be avoided, and the touch operation corresponding to the selected transparent touch electrode TE24 can be avoided. At the same time, the interference of the capacitor due to the warpage of the elastic dielectric material layer 400 also hinders the interference caused by the parallel effect of the capacitance between the transparent pressure electrode and the grounding point.
參見圖5B，為說明依據本創作另一實施例之具金屬走線的壓力觸控裝置10用於觸控感測之操作狀況之示意圖。然在此實施例中，電容偵測電路50中用於產生輔助訊號Va之同相放大器56輸入係不連接到電容讀取電路54之檢測點P，例如可直接連接到訊號源520，以避免來自電容讀取電路54檢測點P之觸控感應訊號Vc1之影響。此外，該電容偵測電路50於觸控偵測操作時更將一與該觸控電容激勵訊號Vs同相位之反射訊號(圖中未示)施加於選定的該透明觸控電極TE24周遭之透明觸控電極，例如透明觸控電極TE21~TE23,TE25~TE28，以使感應電力線更集中在該選定的透明觸控電極TE24，增加感應之靈敏度。 FIG. 5B is a schematic diagram showing the operation state of the touch control device 10 with metal traces according to another embodiment of the present invention for touch sensing. In this embodiment, the input of the non-inverting amplifier 56 for generating the auxiliary signal Va in the capacitance detecting circuit 50 is not connected to the detecting point P of the capacitance reading circuit 54, for example, it can be directly connected to the signal source 520 to avoid coming from The capacitance reading circuit 54 detects the influence of the touch sensing signal Vc1 of the point P. In addition, the capacitance detecting circuit 50 applies a reflection signal (not shown) that is in phase with the touch capacitor excitation signal Vs to the selected transparent touch electrode TE24 during the touch detection operation. Touch electrodes, such as transparent touch electrodes TE21~TE23, TE25~TE28, are used to concentrate the inductive power line on the selected transparent touch electrode TE24 to increase the sensitivity of the sensing.
參見圖6，為依據本創作一實施例之具金屬走線的壓力觸控裝置10之部份上視圖，主要繪示透明觸控電極TE11~TE18,TE21~TE28,TE31~TE38、該些金屬走線254及該透明壓力電極310之由上至下分布狀況。如此圖所示，該些金屬走線254以平行排列的方式穿過整列透明觸控電極層200，使得該些金屬走線254 與該些透明觸控電極TE11~TE18,TE21~TE28,TE31~TE38一一互相電性連接，即每一條金屬走線254電性連接至其中一個透明觸控電極，且該些金屬走線254大致具有相同長度。換句話說，該些金屬走線254即使已經電性連接至其中一個透明觸控電極後，仍然穿過整列透明觸控電極層200以維持大致相同的長度。透明壓力電極層300例如包含兩個透明壓力電極310a,310b，且每一透明觸控電極TE11~TE18,TE21~TE28,TE31~TE38都相對於至少一個透明壓力電極310a或是310b，此處所謂之相對，為由投影角度觀之，每一透明觸控電極TE11~TE18,TE21~TE28,TE31~TE38都與至少一個透明壓力電極310部份重疊，或是鄰近至少一個透明壓力電極310，以達成前述的防止彈性介電材料層400受壓翹曲而產生電容的干擾之影響。例如對於上述之該選定透明觸控電極TE24而言，其相對的透明壓力電極即為透明壓力電極310a。上述之範例僅為說明本創作之一具體實施方式，而非對於本創作之限制。 6 is a top view of a pressure touch device 10 with a metal trace according to an embodiment of the present invention. The transparent touch electrodes TE11~TE18, TE21~TE28, TE31~TE38, and the metal are mainly shown. The distribution of the trace 254 and the transparent pressure electrode 310 from top to bottom. As shown in the figure, the metal traces 254 pass through the entire array of transparent touch electrode layers 200 in a parallel arrangement such that the metal traces 254 The transparent touch electrodes TE11~TE18, TE21~TE28, TE31~TE38 are electrically connected to each other, that is, each metal trace 254 is electrically connected to one of the transparent touch electrodes, and the metal traces 254 They have roughly the same length. In other words, the metal traces 254 pass through the entire array of transparent touch electrode layers 200 to maintain substantially the same length even after they have been electrically connected to one of the transparent touch electrodes. The transparent pressure electrode layer 300 includes, for example, two transparent pressure electrodes 310a, 310b, and each of the transparent touch electrodes TE11~TE18, TE21~TE28, TE31~TE38 is opposite to at least one transparent pressure electrode 310a or 310b. In contrast, each transparent touch electrode TE11~TE18, TE21~TE28, TE31~TE38 partially overlaps at least one transparent pressure electrode 310 or is adjacent to at least one transparent pressure electrode 310. The effect of preventing the interference of the capacitance caused by the warpage of the elastic dielectric material layer 400 is achieved. For example, for the selected transparent touch electrode TE24, the opposite transparent pressure electrode is the transparent pressure electrode 310a. The above examples are merely illustrative of one embodiment of the present invention and are not intended to limit the present invention.
參見圖3A及圖3B，為說明本創作之具金屬走線的壓力觸控裝置10用於壓力感測之操作狀況。本創作之具金屬走線的壓力觸控裝置10的壓力感測階段，例如可以延續如圖5A所示之觸控感測操作階段之後立即進行；更具體而言，此壓力感測係在對於該選定的透明觸控電極TE24進行完觸控感測後，對於和該選定的透明觸控電極TE24相對的透明壓力電極進行。如圖3A所示，與選定透明觸控電極TE24相對的透明壓力電極為透明壓力電極310(若為圖6所示實例，則為透明壓力電極310a)，因此如圖3B所示，對於該透明壓力電極310施加一用於壓力感測之壓力電容感應激勵訊號Vp。該具金屬走線的壓力觸控裝置10之電容偵測電路50具有一同相放大器56，該同相放大器56之增益值較佳為一，可對於該壓力電容感應激勵訊號Vp做同相放大以產生遮蔽訊號Vp1，該遮蔽訊號Vp1係施加到非選定的透明觸控電極TE11~TE18,TE21~TE23,TE25~TE28,TE31~TE38(參見圖3A)，亦即除了該選定透明觸控電極TE24外之至少部份其他透明觸控電極。 再者，該具金屬走線的壓力觸控裝置10之電容偵測電路50具有一直流參考訊號源53，可產生一直流參考訊號以作為對應激勵訊號Vo施加於該選定的透明觸控電極TE24，該對應激勵訊號Vo施加方式可為依序或是隨機。 Referring to FIG. 3A and FIG. 3B, the pressure sensing device 10 with the metal trace of the present invention is used for the operation state of the pressure sensing. The pressure sensing phase of the metal-lined pressure touch device 10 of the present invention can be performed, for example, immediately after the touch sensing operation phase shown in FIG. 5A; more specifically, the pressure sensing system is After the touch sensing is performed, the selected transparent touch electrode TE24 is performed on the transparent pressure electrode opposite to the selected transparent touch electrode TE24. As shown in FIG. 3A, the transparent pressure electrode opposite to the selected transparent touch electrode TE24 is a transparent pressure electrode 310 (for the example shown in FIG. 6, the transparent pressure electrode 310a), so as shown in FIG. 3B, for the transparent The pressure electrode 310 applies a pressure-capacitance induction excitation signal Vp for pressure sensing. The capacitance detecting circuit 50 of the metal-lined pressure touch device 10 has a non-inverting amplifier 56. The gain value of the non-inverting amplifier 56 is preferably one, and the inductive excitation signal Vp can be in-phase amplified for shielding. The signal Vp1 is applied to the unselected transparent touch electrodes TE11~TE18, TE21~TE23, TE25~TE28, TE31~TE38 (see FIG. 3A), that is, in addition to the selected transparent touch electrode TE24. At least some other transparent touch electrodes. Furthermore, the capacitance detecting circuit 50 of the metal touch-line pressure sensing device 10 has a DC current reference signal source 53 for generating a DC current reference signal for applying a corresponding excitation signal Vo to the selected transparent touch electrode TE24. The corresponding excitation signal Vo can be applied in a sequential or random manner.
復參見圖3A，為說明本創作之具金屬走線的壓力觸控裝置10之部份上視圖，主要繪示該透明觸控電極TE11~TE18,TE21~TE28,TE31~TE38、該些金屬走線252及該透明壓力電極310之分布狀況及對應用於壓力感測之壓力電容感應激勵訊號Vp、遮蔽訊號Vp1、及對應激勵訊號Vo訊號施加狀況，從此圖可見，此實施例大致與圖6所示者類似，但是在本實施例中，儘管該些金屬走線252電性連接至每一個該透明觸控電極，但是該些金屬走線252的長度皆不相同，即該些金屬走線252平行延伸以電性連接至其中一個透明觸控電極後，不會穿過整列透明觸控電極層200以維持相同的長度，此外該透明壓力電極層300僅包含一個透明壓力電極310。 Referring to FIG. 3A, in order to illustrate a partial top view of the pressure touch device 10 with the metal trace of the present invention, the transparent touch electrodes TE11~TE18, TE21~TE28, TE31~TE38, and the metal are mainly shown. The distribution of the line 252 and the transparent pressure electrode 310 and the pressure-capacitance induction excitation signal Vp for the pressure sensing, the masking signal Vp1, and the corresponding excitation signal Vo signal application state, as can be seen from this figure, this embodiment is substantially similar to FIG. The same is shown, but in the embodiment, although the metal traces 252 are electrically connected to each of the transparent touch electrodes, the lengths of the metal traces 252 are different, that is, the metal traces. The 252 parallel extensions are electrically connected to one of the transparent touch electrodes, and do not pass through the entire array of transparent touch electrode layers 200 to maintain the same length. Further, the transparent pressure electrode layer 300 includes only one transparent pressure electrode 310.
復參見圖3B，在進行壓力感測時，係將與該壓力電容感應激勵訊號Vp做同相之遮蔽訊號Vp1施加到非選定的透明觸控電極(亦即非選定透明觸控電極TE24之至少部份透明觸控電極)，以遮蔽來自手指操作之電容變化，提高壓力感測精確度。再者，係將一具有預定位準之對應激勵訊號Vo施加到選定的透明觸控電極TE24，以增強相對之透明壓力電極的壓力感測靈敏度。電容偵測電路50中用於產生遮蔽訊號Vp1之同相放大器56輸入係不連接到電容讀取電路54之檢測點P，例如可直接連接到訊號源520，以避免來自電容讀取電路54檢測點P之壓力感應訊號Vc2之影響，即可精確地判斷是否有按壓動作與壓力之大小。 Referring to FIG. 3B, when the pressure sensing is performed, the masking signal Vp1 in phase with the pressure-capacitance sensing excitation signal Vp is applied to the non-selected transparent touch electrode (ie, at least the non-selected transparent touch electrode TE24). Transparent touch electrodes) to mask capacitance changes from finger operation and improve pressure sensing accuracy. Furthermore, a corresponding excitation signal Vo having a predetermined level is applied to the selected transparent touch electrode TE24 to enhance the pressure sensing sensitivity of the opposite transparent pressure electrode. The input of the non-inverting amplifier 56 for generating the masking signal Vp1 in the capacitance detecting circuit 50 is not connected to the detecting point P of the capacitance reading circuit 54, and may be directly connected to the signal source 520, for example, to avoid detecting points from the capacitance reading circuit 54. The influence of the pressure sensing signal Vc2 of P can accurately determine whether there is a pressing action and a pressure.
參見圖4A及圖4B，為說明依據另一實施例的本創作之具金屬走線的壓力觸控裝置10，且該具金屬走線的壓力觸控裝置10係用於壓力感測之操作狀況。其中圖4A實施例大致與圖6所示者類似，然在此實施例中，該透明壓力電極層300僅包含一個透明壓力電極310。圖4B實施例大致與圖3B所示者類似，但在 此實施例中，電容偵測電路50係具有一反相放大器59以取代直流參考訊號源53，換言之，該具金屬走線的壓力觸控裝置10係由反相放大器59產生與壓力電容感應激勵訊號Vp反相之訊號，以作為對應激勵訊號Vo；同樣地，也可增強相對之透明壓力電極的壓力感測靈敏度。此外，該實施例之電容偵測電路50中用於產生遮蔽訊號Vp1之同相放大器56輸入係不連接到電容讀取電路54之輸入點，例如可直接連接到訊號源520，以避免來自電容讀取電路54輸入點之壓力感應訊號Vc2之影響。 Referring to FIG. 4A and FIG. 4B , the present invention provides a metal-lined pressure touch device 10 according to another embodiment, and the metal-lined pressure touch device 10 is used for pressure sensing operation. . The embodiment of FIG. 4A is substantially similar to that shown in FIG. 6, but in this embodiment, the transparent pressure electrode layer 300 includes only one transparent pressure electrode 310. The embodiment of Figure 4B is substantially similar to that shown in Figure 3B, but in In this embodiment, the capacitance detecting circuit 50 has an inverting amplifier 59 instead of the DC reference signal source 53. In other words, the metal-traffic pressure touch device 10 is generated by the inverting amplifier 59 and is induced by the pressure and capacitance. The signal of the signal Vp is inverted as the corresponding excitation signal Vo; similarly, the pressure sensing sensitivity of the transparent pressure electrode can be enhanced. In addition, the input of the non-inverting amplifier 56 for generating the masking signal Vp1 in the capacitance detecting circuit 50 of the embodiment is not connected to the input point of the capacitor reading circuit 54, for example, can be directly connected to the signal source 520 to avoid reading from the capacitor. Take the influence of the voltage sensing signal Vc2 at the input point of the circuit 54.
請參考圖2A~2C，為說明本創作之具金屬走線的壓力觸控裝置10其餘實現方式之示意圖。參見圖2A，此具金屬走線的壓力觸控裝置10與圖1A所示者類似，然而在此實施例中，係以金屬走線暨觸控電極層200'取代圖1A之透明觸控電極層200及金屬走線層250，因此可以省去絕緣層。再者，透明觸控電極210及共平面金屬走線255係設置於同一平面。參見圖2B，實施例大致與圖2A所示者類似，然在此實施例中，該透明壓力電極層300係為可具有偏光作用之透明壓力電極層300'，該透明壓力電極300'係設置於彈性介電材料層400及該下基板500之間。參見圖2C，此實施例大致與圖2A所示者類似，然在此實施例中，該偏光層320與該透明壓力電極層300之位置交換，即該具金屬走線的壓力觸控裝置10由上而下之一上基板100、一金屬走線暨觸控電極層200'、一彈性介電材料層400、一透明壓力電極層300、一偏光層320及一下基板500。 Please refer to FIG. 2A to FIG. 2C , which are schematic diagrams for explaining the remaining implementation manners of the metal touch line pressure touch device 10 . Referring to FIG. 2A, the pressure touch device 10 with a metal trace is similar to that shown in FIG. 1A. However, in this embodiment, the transparent touch electrode of FIG. 1A is replaced by a metal trace and a touch electrode layer 200'. The layer 200 and the metal wiring layer 250 can thus eliminate the insulating layer. Furthermore, the transparent touch electrodes 210 and the coplanar metal traces 255 are disposed on the same plane. Referring to FIG. 2B, the embodiment is substantially similar to that shown in FIG. 2A. However, in this embodiment, the transparent pressure electrode layer 300 is a transparent pressure electrode layer 300' that can have a polarizing effect, and the transparent pressure electrode 300' is disposed. Between the elastic dielectric material layer 400 and the lower substrate 500. Referring to FIG. 2C, this embodiment is substantially similar to that shown in FIG. 2A. However, in this embodiment, the position of the polarizing layer 320 and the transparent pressure electrode layer 300 is exchanged, that is, the metal touch screen pressure touch device 10 An upper substrate 100, a metal trace and touch electrode layer 200', an elastic dielectric material layer 400, a transparent pressure electrode layer 300, a polarizing layer 320, and a lower substrate 500.
配合參見圖7A及圖7B，為說明本創作之具金屬走線的壓力觸控裝置10用於壓力感測之操作狀況，其中假設此具金屬走線的壓力觸控裝置10業已進行如圖5A,5B所示之觸控感測階段，且已經選定透明觸控電極(例如透明觸控電極TE24)。如圖7A所示，與選定透明觸控電極TE24相對的透明壓力電極為透明壓力電極310，因此如圖7B所示，對於該透明壓力電極310施加一用於壓力感測之壓力電容感應激勵訊號Vp。該具金屬走線的壓力觸控裝置10之電容偵測電路50 具有一同相放大器56，該同相放大器56之增益值較佳為一，可對於該壓力電容感應激勵訊號Vp做同相放大以產生遮蔽訊號Vp1，該遮蔽訊號Vp1係施加到非選定的透明觸控電極TE11~TE18,TE21~TE23,TE25~TE28,TE31~TE38(參見圖7A)，亦即除了該選定透明觸控電極TE24外之至少部份其他透明觸控電極。再者，該具金屬走線的壓力觸控裝置10之電容偵測電路50具有一直流參考訊號源53，可產生一對應激勵訊號Vo施加於該選定的透明觸控電極TE24，該對應激勵訊號Vo施加方式可為依序或是隨機。 Referring to FIG. 7A and FIG. 7B, in order to explain the operation state of the pressure-sensitive touch device 10 with the metal wire for the pressure sensing, it is assumed that the pressure touch device 10 with the metal wire has been carried out as shown in FIG. 5A. The touch sensing phase shown in FIG. 5B, and the transparent touch electrode (for example, the transparent touch electrode TE24) has been selected. As shown in FIG. 7A, the transparent pressure electrode opposite to the selected transparent touch electrode TE24 is a transparent pressure electrode 310. Therefore, as shown in FIG. 7B, a pressure-capacitance induction excitation signal for pressure sensing is applied to the transparent pressure electrode 310. Vp. The capacitance detecting circuit 50 of the metal touch line pressure touch device 10 The in-phase amplifier 56 has a gain value of one, and the inductive excitation signal Vp can be in-phase amplified to generate the masking signal Vp1, and the masking signal Vp1 is applied to the unselected transparent touch electrode. TE11~TE18, TE21~TE23, TE25~TE28, TE31~TE38 (see FIG. 7A), that is, at least some other transparent touch electrodes except the selected transparent touch electrode TE24. Furthermore, the capacitance detecting circuit 50 of the metal touch-line pressure sensing device 10 has a current-sending reference signal source 53 for generating a corresponding excitation signal Vo applied to the selected transparent touch electrode TE24, the corresponding excitation signal. Vo can be applied sequentially or randomly.
復參見圖7A，為說明本創作之具金屬走線的壓力觸控裝置10之部份上視圖，主要繪示該透明觸控電極TE11~TE18,TE21~TE28,TE31~TE38、該些金屬走線255及該透明壓力電極310之分布狀況及對應用於壓力感測之壓力電容感應激勵訊號Vp、遮蔽訊號Vp1、及對應激勵訊號Vo訊號施加狀況，此實施例中，該些共平面金屬走線255及該些透明觸控電極TE11~TE38係設置於同一平面，該些共平面金屬走線255電性連接至對應之透明觸控電極，此外該透明壓力電極層300包含一個透明壓力電極310。 Referring to FIG. 7A, in order to illustrate a partial top view of the pressure-sensitive touch device 10 with the metal trace of the present invention, the transparent touch electrodes TE11~TE18, TE21~TE28, TE31~TE38, and the metal are mainly shown. The distribution of the line 255 and the transparent pressure electrode 310 and the pressure-capacitance induction excitation signal Vp for the pressure sensing, the masking signal Vp1, and the corresponding excitation signal Vo signal application state, in this embodiment, the coplanar metal walking The line 255 and the transparent touch electrodes TE11~TE38 are disposed on the same plane. The coplanar metal traces 255 are electrically connected to the corresponding transparent touch electrodes, and the transparent pressure electrode layer 300 includes a transparent pressure electrode 310. .
復參見圖7B，在進行壓力感測時，係將與該壓力電容感應激勵訊號Vp同相之遮蔽訊號Vp1施加到非選定的透明觸控電極(亦即非選定透明觸控電極TE24之至少部份透明觸控電極)，以遮蔽來自手指操作之電容變化，提高壓力感測精確度。再者，係將一具有預定位準之對應激勵訊號Vo施加到選定的透明觸控電極TE24，以增強相對之透明壓力電極的壓力感測靈敏度。電容偵測電路50中用於產生遮蔽訊號Vp1之同相放大器57輸入係不連接到電容讀取電路54之檢測點P，例如可直接連接到訊號源520，以避免來自電容讀取電路54檢測點P之壓力感應訊號Vc2之影響，即可精確地判斷是否有按壓動作與壓力之大小。 Referring to FIG. 7B, when the pressure sensing is performed, the masking signal Vp1 in phase with the pressure-capacitance sensing excitation signal Vp is applied to the unselected transparent touch electrode (ie, at least a portion of the unselected transparent touch electrode TE24). Transparent touch electrode) to mask capacitance changes from finger operation and improve pressure sensing accuracy. Furthermore, a corresponding excitation signal Vo having a predetermined level is applied to the selected transparent touch electrode TE24 to enhance the pressure sensing sensitivity of the opposite transparent pressure electrode. The input of the non-inverting amplifier 57 for generating the masking signal Vp1 in the capacitance detecting circuit 50 is not connected to the detecting point P of the capacitance reading circuit 54, and may be directly connected to the signal source 520, for example, to avoid detecting points from the capacitance reading circuit 54. The influence of the pressure sensing signal Vc2 of P can accurately determine whether there is a pressing action and a pressure.
請參考圖8A及8B，為說明本創作之具金屬走線的壓力觸控裝置10之金屬走線細部結構，如圖3A所示之金屬走線252之局部放大圖。雖然在圖3A所 示之金屬走線252為單一直線，但是若局部放大來看，該些金屬走線分別係由至少一條金屬線組成，例如可為兩條垂直及很多條平行的金屬線所組成之梯形金屬走線(圖8A)或是多條平行及垂直的金屬線所組成之網形金屬走線(圖8B)，以避免當其中一條金屬線斷開時之斷路問題，該些金屬走線也可以是由複數條金屬線組成之不規則金屬網格走線，以減少對視覺之衝擊。前述組成該些金屬走線的金屬線之線寬以不大於50微米為較佳；但是須知圖8A及8B所示僅為一示意圖，故該些金屬走線之細部結構不限於此。 Please refer to FIG. 8A and FIG. 8B , which are partial enlarged views of the metal trace 252 shown in FIG. 3A for explaining the metal trace fine structure of the metal traced pressure touch device 10 of the present invention. Although in Figure 3A The metal traces 252 are shown as a single straight line, but if partially enlarged, the metal traces are respectively composed of at least one metal line, for example, a trapezoidal metal consisting of two vertical and a plurality of parallel metal lines. a wire (Fig. 8A) or a plurality of parallel metal wires (Fig. 8B) formed by parallel and vertical metal wires to avoid the problem of disconnection when one of the wires is broken. The metal wires may also be An irregular metal grid consisting of a plurality of metal wires to reduce the impact on the visual. Preferably, the line width of the metal lines constituting the metal traces is not more than 50 μm; however, it should be noted that the details of the metal traces are not limited thereto as shown in FIGS. 8A and 8B.
再者，於上述各實施例中，該上基板100係一玻璃基板、一高分子材料之薄膜基板、或是一硬質的塗佈層，用以保護透明觸控電極層免於刮擦、觸碰與水氣的損壞；該觸控電容激勵訊號或該壓力電容激勵訊號係一交變訊號，如一弦波，方波，三角波或梯形波，亦可為一電流源；該對應激勵訊號係一直流參考訊號(例如零電位訊號)或一與該電容激勵訊號反相位之交變訊號；該彈性介電材料層400包含一彈性膠質材料，該彈性膠質材料400遇壓力時體積壓縮變形，並於除去壓力時回復原有的體積與形狀，該彈性介電材料層400例如可為(但是不限於)聚二甲基矽氧烷(Polydimethylsiloxane，PDMS)材料或一光學膠；該些金屬走線為黑色金屬材料或一黑色樹脂覆蓋之金屬材料所製作，以減少金屬材料的反光；該下基板500可為一玻璃基板或一高分子材料基板，或是一顯示螢幕的彩色濾光基板；該電容偵測電路係一自電容偵測電路；該透明壓力電極層例如可為一顯示螢幕的靜電遮蔽保護層或一顯示螢幕之中由導電材料所製作之的偏光層；每一該透明觸控電極與相鄰的透明觸控電極之間的間隙不大於500微米，每一該透明觸控電極與相鄰的共平面金屬走線之間的間隙不大於500微米，以對該至少一個壓力電極形成良好之遮罩，增加壓力偵測之正確性；該些複數個透明觸控電極面積與該些共平面金屬走線之面積合對該至少一個透明壓力電極面積之投影重疊覆蓋率不小於百分之九十。 Furthermore, in the above embodiments, the upper substrate 100 is a glass substrate, a film substrate of a polymer material, or a hard coating layer for protecting the transparent touch electrode layer from scratching and touching. Contact with the moisture; the touch capacitor excitation signal or the pressure capacitor excitation signal is an alternating signal, such as a sine wave, square wave, triangle wave or trapezoidal wave, or a current source; the corresponding excitation signal is always a flow reference signal (such as a zero potential signal) or an alternating signal opposite to the capacitive excitation signal; the elastic dielectric material layer 400 comprises an elastic colloidal material, and the elastic colloidal material 400 is compressively deformed under pressure, and Recovering the original volume and shape when the pressure is removed, the elastic dielectric material layer 400 can be, for example, but not limited to, a polydimethylsiloxane (PDMS) material or an optical glue; the metal traces The ferrous metal material or a black resin-covered metal material is used to reduce the reflection of the metal material; the lower substrate 500 can be a glass substrate or a polymer material substrate, or a display screen. a color filter substrate; the capacitance detecting circuit is a self-capacitance detecting circuit; the transparent pressure electrode layer can be, for example, a static shielding protective layer for displaying a screen or a polarizing layer made of a conductive material in a display screen; The gap between each of the transparent touch electrodes and the adjacent transparent touch electrodes is not more than 500 micrometers, and the gap between each of the transparent touch electrodes and the adjacent coplanar metal traces is not more than 500 micrometers. Forming a good mask on the at least one pressure electrode to increase the correctness of the pressure detection; the area of the plurality of transparent touch electrode areas and the area of the coplanar metal traces and the projection of the area of the at least one transparent pressure electrode The overlap coverage is not less than 90%.
請參考圖9，其係為依據本創作之一具體實例之電容偵測電路50之示意圖。該電容偵測電路50例如為一自電容偵測電路，且包含一電容激勵驅動電路52及一電容讀取電路54，以偵測電容讀取點P之電容變化值。該電容激勵驅動電路52包含一訊號源520、一驅動器522(包含第二阻抗522a及第三阻抗522b)。該電容讀取電路54包含一差動放大器540、一第一阻抗542及一第一電容544，以偵測一感應電極60上之電容變化，此感應電極60有附帶之第一雜散電容62及一第二雜散電容64。該訊號源520電性連接至該第一阻抗542及該第二阻抗522a；該第一阻抗542電性連接至該第一電容544；該第一電容544電性連接至該差動放大器540之該第一輸入端540a；該第二阻抗522a電性連接至該差動放大器500之該第二輸入端540b；該感應電極60經由該電容偵測電路50之一接點而連接至該第二阻抗522a及該差動放大器540之該第二輸入端540b；該第一雜散電容62電性連接至該接腳；該第二雜散電容64電性連接至該感應電極60。 Please refer to FIG. 9, which is a schematic diagram of a capacitance detecting circuit 50 according to one embodiment of the present invention. The capacitance detecting circuit 50 is, for example, a self-capacitance detecting circuit, and includes a capacitive excitation driving circuit 52 and a capacitance reading circuit 54 for detecting a capacitance change value of the capacitance reading point P. The capacitor excitation driving circuit 52 includes a signal source 520 and a driver 522 (including a second impedance 522a and a third impedance 522b). The capacitor reading circuit 54 includes a differential amplifier 540, a first impedance 542 and a first capacitor 544 for detecting a change in capacitance on a sensing electrode 60. The sensing electrode 60 has a first stray capacitance 62 attached thereto. And a second stray capacitance 64. The signal source 520 is electrically connected to the first impedance 542 and the second impedance 522a; the first impedance 542 is electrically connected to the first capacitor 544; the first capacitor 544 is electrically connected to the differential amplifier 540 The first input end 540a is electrically connected to the second input end 540b of the differential amplifier 500. The sensing electrode 60 is connected to the second via a contact of the capacitance detecting circuit 50. An impedance 522a and the second input end 540b of the differential amplifier 540; the first stray capacitance 62 is electrically connected to the pin; the second stray capacitance 64 is electrically connected to the sensing electrode 60.
在圖9所示之電容偵測電路50中，該感應電極60係感應手指或各類導體或物件之近接或觸碰而接收一觸控訊號；該訊號源520係一週期性之輸入訊號至該第三阻抗522b，且該第一阻抗542之阻抗值等於該第二阻抗522a之阻抗值；該差動放大器540係依據該輸入訊號及該觸控訊號使得該輸出端540c輸出差動放大後之一觸控訊號，該第一電容544之電容值等於該第一雜散電容62及該第二雜散電容64並聯之電容值，當手指或各類導體或物件接近該感應電極60時，該第二雜散電容64之電容值會改變以使得該第一輸入端540a及該第二輸入端540b之電壓值不同，經由該差動放大器540差動放大之後，該輸出端540c輸出放大後之該觸控訊號，透過量測該差動放大器540之輸出變化，以分辨該感應電極60所產生之微量電容值改變，可以有效排除電路、電源等雜訊所造成的干擾，並量測到微量電容值改變。此外，此電容偵測電路50之更完整細節可參見同一申請人之發明I473001微量阻抗變化檢測裝置所揭露之自電容偵測電路技術。 In the capacitance detecting circuit 50 shown in FIG. 9, the sensing electrode 60 senses a proximity or touch of a finger or various types of conductors or objects to receive a touch signal; the signal source 520 is a periodic input signal to The third impedance 522b, and the impedance value of the first impedance 542 is equal to the impedance value of the second impedance 522a; the differential amplifier 540 causes the output terminal 540c to output differential amplification according to the input signal and the touch signal. a touch signal, the capacitance of the first capacitor 544 is equal to the capacitance of the first stray capacitance 62 and the second stray capacitance 64 in parallel, when a finger or various types of conductors or objects approach the sensing electrode 60, The capacitance value of the second stray capacitance 64 is changed such that the voltage values of the first input end 540a and the second input end 540b are different. After the differential amplifier 540 is differentially amplified, the output end 540c is outputted after being amplified. The touch signal can measure the change of the output of the differential amplifier 540 to distinguish the change of the trace capacitance generated by the sensing electrode 60, thereby effectively eliminating interference caused by noises such as circuits and power supplies, and measuring the interference. Trace electricity Value changes. In addition, for more complete details of the capacitance detecting circuit 50, refer to the self-capacitance detecting circuit technology disclosed in the same applicant's invention I473001 trace impedance change detecting device.
然以上所述者，僅為本創作之較佳實施例，當不能限定本創作實施之範圍，即凡依本創作申請專利範圍所作之均等變化與修飾等，皆應仍屬本創作之專利涵蓋範圍意圖保護之範疇。本創作還可有其它多種實施例，在不背離本創作精神及其實質的情況下，熟悉本領域的技術人員當可根據本創作作出各種相應的改變和變形，但這些相應的改變和變形都應屬於本創作所附的權利要求的保護範圍。綜上所述，當知本創作已具有產業利用性、新穎性與進步性，又本創作之構造亦未曾見於同類產品及公開使用，完全符合新型專利申請要件，爰依專利法提出申請。 However, the above is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited, that is, the equal changes and modifications made by the scope of the patent application of the present invention should still be covered by the patent of the present invention. The scope of the scope is intended to protect. There may be other various embodiments of the present invention, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit of the present invention, but the corresponding changes and modifications are It is intended to fall within the scope of the appended claims. In summary, when Zhiben's creation has industrial applicability, novelty and progressiveness, and the structure of this creation has not been seen in similar products and public use, it fully complies with the requirements of new patent applications and applies for patent law.
10‧‧‧具金屬走線的壓力觸控裝置 10‧‧‧pressure touch devices with metal traces
100‧‧‧上基板 100‧‧‧Upper substrate
100a‧‧‧第一表面 100a‧‧‧ first surface
100b‧‧‧第二表面 100b‧‧‧ second surface
200‧‧‧透明觸控電極層 200‧‧‧Transparent touch electrode layer
210‧‧‧透明觸控電極 210‧‧‧ Transparent touch electrode
250‧‧‧金屬走線層 250‧‧‧metal trace layer
260‧‧‧絕緣層 260‧‧‧Insulation
300‧‧‧透明壓力電極層 300‧‧‧Transparent pressure electrode layer
320‧‧‧偏光層 320‧‧‧ polarizing layer
400‧‧‧彈性介電材料層 400‧‧‧Elastic dielectric material layer
500‧‧‧下基板 500‧‧‧lower substrate
Claims (28)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105207380U TWM537260U (en) | 2016-05-19 | 2016-05-19 | Force-touch sensing device with metal traces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105207380U TWM537260U (en) | 2016-05-19 | 2016-05-19 | Force-touch sensing device with metal traces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM537260U true TWM537260U (en) | 2017-02-21 |
Family
ID=58608072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW105207380U TWM537260U (en) | 2016-05-19 | 2016-05-19 | Force-touch sensing device with metal traces |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWM537260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI656469B (en) * | 2017-03-03 | 2019-04-11 | 美商愛特梅爾公司 | Touch sensor with force sensor response normalization, and related method and device |
| CN110750167A (en) * | 2018-07-23 | 2020-02-04 | 速博思股份有限公司 | Suspension touch device |
-
2016
- 2016-05-19 TW TW105207380U patent/TWM537260U/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI656469B (en) * | 2017-03-03 | 2019-04-11 | 美商愛特梅爾公司 | Touch sensor with force sensor response normalization, and related method and device |
| US10649595B2 (en) | 2017-03-03 | 2020-05-12 | Atmel Corporation | Touch sensor with force sensor response normalization, and related method and apparatus |
| CN110750167A (en) * | 2018-07-23 | 2020-02-04 | 速博思股份有限公司 | Suspension touch device |
| CN110750167B (en) * | 2018-07-23 | 2023-07-28 | 速博思股份有限公司 | Suspension touch device |
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