TWM526124U - Pressure sensing touch panel - Google Patents
Pressure sensing touch panel Download PDFInfo
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- TWM526124U TWM526124U TW105206261U TW105206261U TWM526124U TW M526124 U TWM526124 U TW M526124U TW 105206261 U TW105206261 U TW 105206261U TW 105206261 U TW105206261 U TW 105206261U TW M526124 U TWM526124 U TW M526124U
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Abstract
Description
本創作有關於一種觸控面板,尤其有關於一種帶有線狀鏤空設計的壓力感應觸控面板。 This creation relates to a touch panel, and more particularly to a pressure-sensitive touch panel with a linear hollow design.
目前市面上大多數觸控面板只具備觸控位置檢測,而隨著電子產品的功能多樣化,越來越多的使用場景需要檢測觸控點處的受力大小,以完成更多的產品功能,提高使用者的體驗度。由於現有的觸控面板大多並不具備壓力檢測功能,且在現有的觸控面板結構的基礎上增加壓力檢測功能需要另外增設至少一層壓力檢測層,這將使觸控面板的厚度明顯增大,且材料成本也會提高,因此,不利於具有壓力感測功能的觸控面板的推廣。為了解決上述問題,相關領域的技術人員進行了大量的嘗試,為了既滿足產品輕薄化的要求,又不增加電極佈線的難度,降低生產成本。本創作就是圍繞著上述問題,並提出了一種新的製作概念,製作出的觸控面板能夠較好的解決以上問題。 At present, most touch panels on the market only have touch position detection, and as the functions of electronic products are diversified, more and more use scenes need to detect the force at the touch points to complete more product functions. To improve the user experience. Since most of the existing touch panels do not have the pressure detecting function, and the pressure detecting function is added to the existing touch panel structure, it is necessary to additionally add at least one layer of the pressure detecting layer, which will significantly increase the thickness of the touch panel. And the material cost will also increase, so it is not conducive to the promotion of touch panels with pressure sensing function. In order to solve the above problems, a person skilled in the related art has made a large number of attempts to reduce the production cost by not only meeting the requirements of thinning and thinning of the product, but also increasing the difficulty of electrode wiring. This creation revolves around the above problems and proposes a new production concept. The touch panel produced can better solve the above problems.
為克服現有技術觸控面板在增加壓力感測功能層 時會增加觸控面板厚度且增加材料成本的難題,本創作提供一種能夠較好的解決這些難題的壓力感應觸控面板。 To overcome the prior art touch panel in increasing the pressure sensing function layer This will increase the thickness of the touch panel and increase the cost of materials. This creation provides a pressure-sensitive touch panel that can better solve these problems.
為了達到上述目的,依據本創作之一實施方式,一種壓力感應觸控面板包含基板。基板的一表面上設置電極層。電極層包含複數個第一方向觸控感測電極串以及複數個第二方向觸控感測電極串。第一方向觸控感測電極串以及第二方向觸控感測電極串彼此絕緣。每一第一方向觸控感測電極串包含複數個第一方向感應單元。每一第二方向觸控感測電極串包含複數個第二方向感應單元。於至少一第一方向觸控感測電極串的第一方向感應單元及/或至少一第二方向觸控感測電極串的第二方向感應單元中設置線狀鏤空結構。 In order to achieve the above object, according to one embodiment of the present invention, a pressure sensing touch panel includes a substrate. An electrode layer is disposed on one surface of the substrate. The electrode layer includes a plurality of first direction touch sensing electrode strings and a plurality of second direction touch sensing electrode strings. The first direction touch sensing electrode string and the second direction touch sensing electrode string are insulated from each other. Each of the first direction touch sensing electrode strings includes a plurality of first direction sensing units. Each of the second direction touch sensing electrode strings includes a plurality of second direction sensing units. A linear hollow structure is disposed in the first direction sensing unit of the at least one first direction touch sensing electrode string and/or the second direction sensing unit of the at least one second direction touch sensing electrode string.
依據本創作一實施方式,壓力感應觸控面板包含電路系統。電路系統包含複數個第一導線、複數個第二導線以及惠斯通電橋電路。每一此些第一方向觸控感測電極串及/或每一此些第二方向觸控感測電極串透過每一此些第一導線以及每一此些第二導線而電性連接至惠斯通電橋電路。此些第一方向觸控感測電極串及/或此些第二方向觸控感測電極串係構成惠斯通電橋電路的其中一元素。此些第一方向觸控感測電極串及/或此些第二方向觸控感測電極串係被觸壓後所產生的阻值變化量會透過惠斯通電橋電路而檢測出。 According to an embodiment of the present invention, the pressure sensing touch panel includes a circuit system. The circuitry includes a plurality of first conductors, a plurality of second conductors, and a Wheatstone bridge circuit. Each of the first direction touch sensing electrode strings and/or each of the second direction touch sensing electrode strings is electrically connected to each of the first wires and each of the second wires Wheatstone bridge circuit. The first direction touch sensing electrode strings and/or the second direction touch sensing electrode strings form one of the elements of the Wheatstone bridge circuit. The amount of change in resistance generated by the first-direction touch sensing electrode string and/or the second-direction touch sensing electrode string is detected by the Wheatstone bridge circuit.
依據本創作一實施方式,壓力感應觸控面板包含蓋板。蓋板包含第一表面以及第二表面。第一表面以及第二表面係相對設置。第一表面供使用者施加觸壓動作。 According to an embodiment of the present invention, the pressure sensing touch panel includes a cover. The cover plate includes a first surface and a second surface. The first surface and the second surface are oppositely disposed. The first surface is for the user to apply a pressing action.
依據本創作一實施方式,鏤空結構的形狀為正弦 波線狀、鋸齒線狀、螺旋線狀、方波線狀或十字交錯線狀。 According to an embodiment of the present creation, the shape of the hollow structure is sinusoidal Wave line shape, zigzag line shape, spiral line shape, square wave line shape or cross line shape.
依據本創作一實施方式,線狀鏤空結構的面積分別為其所對應之第一方向感應單元或第二方向感應單元面積的10%至50%。 According to an embodiment of the present invention, the area of the linear hollow structure is 10% to 50% of the area of the first direction sensing unit or the second direction sensing unit corresponding thereto.
依據本創作一實施方式,壓力感應觸控面板包含一光學層。光學層設置於電極層上。光學層包含低折射率層及/或高折射率層。低折射率層的折射率為約1.1至約1.6。高折射率層的折射率為約1.8至約2.7。 According to an embodiment of the present invention, the pressure sensing touch panel includes an optical layer. The optical layer is disposed on the electrode layer. The optical layer comprises a low refractive index layer and/or a high refractive index layer. The low refractive index layer has a refractive index of from about 1.1 to about 1.6. The high refractive index layer has a refractive index of from about 1.8 to about 2.7.
依據本創作一實施方式,其中每一此些第一方向觸控感測電極串與每一此些第二方向觸控感測電極串的相交處設置一絕緣塊。絕緣塊位於每一此些第一方向觸控感測電極串與每一此些第二方向觸控感測電極串之間。 According to an embodiment of the present invention, an insulating block is disposed at an intersection of each of the first-direction touch sensing electrode strings and each of the second-direction touch sensing electrode strings. The insulating block is located between each of the first direction touch sensing electrode strings and each of the second direction touch sensing electrode strings.
依據本創作另一實施方式,一種壓力感應觸控面板包含蓋板、第一電極層以及第二電極層與基板。蓋板包含第一表面以及第二表面。第一表面以及第二表面係相對設置。第一表面供使用者施加觸壓動作。基板位於第一電極層與第二電極層之間。第一電極層位於蓋板與基板之間。第一電極層包含複數個第一方向觸控感測電極串。第二電極層包含複數個第二方向觸控感測電極串。第一方向觸控感測電極串與第二方向觸控感測電極串係彼此絕緣,並用於觸控位置檢測。每一第一方向觸控感測電極串包含複數個第一方向感應單元。每一第二方向觸控感測電極串包含第二方向感應單元。於至少一第一方向觸控感測電極串的第一方向感應單元中設置線狀鏤空結構;或至少一第一方向觸控感測電極串的第一方向感應單元以及至 少一第二方向觸控感測電極串的第二方向感應單元中皆設置線狀鏤空結構。 According to another embodiment of the present invention, a pressure-sensitive touch panel includes a cover, a first electrode layer, and a second electrode layer and a substrate. The cover plate includes a first surface and a second surface. The first surface and the second surface are oppositely disposed. The first surface is for the user to apply a pressing action. The substrate is located between the first electrode layer and the second electrode layer. The first electrode layer is located between the cover plate and the substrate. The first electrode layer includes a plurality of first direction touch sensing electrode strings. The second electrode layer includes a plurality of second direction touch sensing electrode strings. The first direction touch sensing electrode string and the second direction touch sensing electrode string are insulated from each other and used for touch position detection. Each of the first direction touch sensing electrode strings includes a plurality of first direction sensing units. Each of the second direction touch sensing electrode strings includes a second direction sensing unit. Providing a linear hollow structure in the first direction sensing unit of the at least one first direction touch sensing electrode string; or a first direction sensing unit of the at least one first direction touch sensing electrode string and A linear hollow structure is disposed in the second direction sensing unit of the second touch sensing electrode string.
1‧‧‧壓力感應觸控面板 1‧‧‧ Pressure-sensitive touch panel
11‧‧‧蓋板 11‧‧‧ Cover
13‧‧‧電極層 13‧‧‧Electrode layer
131‧‧‧第一方向觸控感測電極串 131‧‧‧First direction touch sensing electrode string
1311‧‧‧第一方向感應單元 1311‧‧‧First direction sensing unit
1313‧‧‧第一方向連接部 1313‧‧‧First direction connection
133‧‧‧第二方向觸控感測電極串 133‧‧‧Second direction touch sensing electrode string
1331‧‧‧第二方向感應單元 1331‧‧‧Second direction sensing unit
13311‧‧‧第二方向感應單元上半部 13311‧‧‧The upper half of the second direction sensing unit
13313‧‧‧第二方向感應單元下半部 13313‧‧‧Second half of the second direction sensing unit
1333‧‧‧第二方向連接部 1333‧‧‧Second direction connection
1335‧‧‧第二方向電極鏤空 1335‧‧‧Second direction electrode hollowing out
1337‧‧‧第一端部 1337‧‧‧First end
1338‧‧‧第二端部 1338‧‧‧second end
14‧‧‧光學層 14‧‧‧Optical layer
15‧‧‧基板 15‧‧‧Substrate
19‧‧‧電路系統 19‧‧‧Circuit system
191‧‧‧電極連接線 191‧‧‧Electrode cable
1911‧‧‧第一導線 1911‧‧‧First wire
1913‧‧‧第二導線 1913‧‧‧second wire
193‧‧‧軟性印刷電路板 193‧‧‧Soft printed circuit board
195‧‧‧壓力感測晶片 195‧‧‧ Pressure Sensing Wafer
1951‧‧‧惠斯通電橋電路 1951‧‧‧ Wheatstone Bridge Circuit
19511‧‧‧輔助電阻 19511‧‧‧Auxiliary resistor
19513‧‧‧輔助電阻 19513‧‧‧Auxiliary resistor
19515‧‧‧輔助電阻 19515‧‧‧Auxiliary resistor
2‧‧‧壓力感應觸控面板 2‧‧‧ Pressure-sensitive touch panel
23‧‧‧電極層 23‧‧‧Electrical layer
231‧‧‧第一方向觸控感測電極串 231‧‧‧First direction touch sensing electrode string
2311‧‧‧第一方向感應單元 2311‧‧‧First direction sensing unit
2313‧‧‧第一方向連接部 2313‧‧‧First direction connection
2315‧‧‧第一方向電極鏤空 2315‧‧‧The first direction electrode is hollowed out
233‧‧‧第二方向觸控感測電極串 233‧‧‧Second direction touch sensing electrode string
2333‧‧‧第二方向連接部 2333‧‧‧Second direction connection
2335‧‧‧第二方向電極鏤空 2335‧‧‧Second direction electrode hollowing out
235‧‧‧絕緣塊 235‧‧‧insulation block
291‧‧‧電極連接線 291‧‧‧electrode cable
293‧‧‧軟性印刷電路板 293‧‧‧Soft printed circuit board
2951‧‧‧惠斯通電橋電路 2951‧‧‧ Wheatstone Bridge Circuit
3‧‧‧壓力感應觸控面板 3‧‧‧ Pressure-sensitive touch panel
33‧‧‧電極層 33‧‧‧Electrode layer
331‧‧‧第一方向觸控感測電極串 331‧‧‧First direction touch sensing electrode string
3311‧‧‧第一觸控感測電極 3311‧‧‧First touch sensing electrode
33111‧‧‧凸出部 33111‧‧‧protrusion
3313‧‧‧第二觸控感測電極 3313‧‧‧Second touch sensing electrode
33131‧‧‧凸出部 33131‧‧‧Protruding
33133‧‧‧第二電極鏤空 33133‧‧‧Second electrode hollow
4‧‧‧壓力感應觸控面板 4‧‧‧ Pressure-sensitive touch panel
41‧‧‧蓋板 41‧‧‧ Cover
42‧‧‧第一基板 42‧‧‧First substrate
421‧‧‧第一電極層 421‧‧‧First electrode layer
4211‧‧‧第一方向觸控感測電極串 4211‧‧‧First direction touch sensing electrode string
42111‧‧‧第一方向感應單元 42111‧‧‧First direction sensing unit
42113‧‧‧第一方向電極鏤空 42113‧‧‧First direction electrode hollow
42115‧‧‧第一方向連接部 42115‧‧‧First direction connection
43‧‧‧第二基板 43‧‧‧second substrate
431‧‧‧第二電極層 431‧‧‧Second electrode layer
4311‧‧‧第二方向觸控感測電極串 4311‧‧‧Second direction touch sensing electrode string
43111‧‧‧第二方向感應單元 43111‧‧‧Second direction sensing unit
43113‧‧‧第二方向電極鏤空 43113‧‧‧Second direction electrode hollowing out
43115‧‧‧第二方向連接部 43115‧‧‧Second direction connection
493‧‧‧軟性印刷電路板 493‧‧‧Soft printed circuit board
4951‧‧‧惠斯通電橋電路 4951‧‧‧ Wheatstone Bridge Circuit
495‧‧‧壓力感測晶片 495‧‧‧ Pressure Sensing Wafer
A‧‧‧區域 A‧‧‧ area
B‧‧‧區域 B‧‧‧Area
△R‧‧‧電阻變化量 △R‧‧‧resistance change
t1‧‧‧時間 Time t1‧‧‧
t2‧‧‧時間 Time t2‧‧‧
t3‧‧‧時間 Time t3‧‧‧
t4‧‧‧時間 Time t4‧‧‧
t5‧‧‧時間 Time t5‧‧‧
t6‧‧‧時間 Time t6‧‧‧
t7‧‧‧時間 Time t7‧‧‧
t8‧‧‧時間 Time t8‧‧‧
VEX‧‧‧驅動電壓 VEX‧‧‧ drive voltage
Vpressure‧‧‧壓力檢測電壓 V pressure ‧‧‧pressure detection voltage
Vtouch‧‧‧觸控檢測電壓 V touch ‧‧‧ touch detection voltage
第1圖繪示本創作壓力感應觸控面板實施方式一的爆炸結構示意圖。 FIG. 1 is a schematic diagram showing an explosion structure of the first embodiment of the pressure sensing touch panel of the present invention.
第2圖繪示本創作壓力感應觸控面板之實施方式一中電極層的正視結構示意圖。 FIG. 2 is a schematic front view showing the electrode layer in the first embodiment of the pressure sensing touch panel of the present invention.
第3圖繪示本創作壓力感應觸控面板之實施方式一中惠斯通電橋電路的結構示意圖。 FIG. 3 is a schematic structural view of a Wheatstone bridge circuit in the first embodiment of the pressure sensing touch panel of the present invention.
第4圖繪示本創作壓力感應觸控面板之實施方式一中檢測電路信號的分時時序圖。 FIG. 4 is a timing chart showing the timing of the detection circuit signal in the first embodiment of the pressure sensing touch panel of the present invention.
第5圖繪示本創作壓力感應觸控面板之實施方式一之第2圖所示區域A的截面結構放大圖。 FIG. 5 is an enlarged cross-sectional view showing a region A shown in FIG. 2 of the first embodiment of the pressure sensing touch panel of the present invention.
第6圖至第8圖繪示本創作壓力感應觸控面板之實施方式一中電極層的其他變形示意圖。 FIG. 6 to FIG. 8 are diagrams showing other variations of the electrode layer in the first embodiment of the pressure sensing touch panel of the present invention.
第9圖繪示本創作壓力感應觸控面板之實施方式二中電極層的正視結構示意圖。 FIG. 9 is a schematic front view showing the electrode layer in the second embodiment of the pressure sensing touch panel of the present invention.
第10圖繪示本創作第9圖中區域B的截面結構放大圖。 Fig. 10 is an enlarged view showing a cross-sectional structure of a region B in Fig. 9 of the present creation.
第11圖繪示本創作壓力感應觸控面板之實施方式三中電極層的正視結構示意圖。 FIG. 11 is a schematic front view showing the electrode layer of the third embodiment of the pressure sensing touch panel of the present invention.
第12圖繪示本創作壓力感應觸控面板之實施方式四的爆炸結構示意圖。 FIG. 12 is a schematic diagram showing an explosion structure of Embodiment 4 of the pressure sensing touch panel of the present invention.
第13圖繪示本創作壓力感應觸控面板之實施方式四中電極層的正視結構示意圖。 FIG. 13 is a schematic front view showing the electrode layer of the fourth embodiment of the pressure sensing touch panel of the present invention.
第14圖繪示本創作壓力感應觸控面板之實施方式四中另一電極層的正視結構示意圖。 FIG. 14 is a schematic front view showing another electrode layer in Embodiment 4 of the pressure sensing touch panel of the present invention.
為使本創作實施方式的目的、技術手段和優點更加清楚,下面將結合本創作實施方式中的附圖,對本創作實施方式中的技術手段進行清楚、完整地描述。為了方便說明,放大或者縮小了不同層和區域的尺寸,所以圖中所示大小和比例並不一定代表實際尺寸,也不反映尺寸的比例關係。 In order to make the objects, technical means and advantages of the present embodiment more clear, the technical means in the present creative embodiment will be clearly and completely described below in conjunction with the drawings in the present embodiment. For convenience of description, the sizes of different layers and regions are enlarged or reduced, so the sizes and proportions shown in the drawings do not necessarily represent actual dimensions, nor do they reflect the proportional relationship of dimensions.
請參照第1圖,本創作實施方式一壓力感應觸控面板1包含蓋板11、電極層13、光學層14以及基板15。蓋板11具有一第一表面和一第二表面,且第一表面與第二表面相對設置。第一表面供使用者給予按壓動作。電極層13形成在基板15上。光學層14位於蓋板11和電極層13之間。蓋板11的材質可為硬質塑膠、強化玻璃或藍寶石玻璃等硬質板。當使用者施加一觸壓動作給蓋板11,作用力傳遞到蓋板11之下的電極層13,則電極層13感測出觸壓動作的位置及觸壓的力量,不同的觸壓力量可定義不同的功能操作。這樣的設計可以極大的提高使用者使用產品的體驗度和滿意度。基板15之材質可以是剛性基材,如:玻璃、強化玻璃或藍寶石玻璃等。基板15之材質也可以是軟性基材,如:聚醚醚酮(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(polycarbonate,PC)、聚丁二酸乙二醇酯(polyethylene succinate,PES)、聚甲基丙烯酸甲酯(polymethylmethacrylate,PMMA)或前述任意兩者的複合物等材料。作為變形實施方式,本創作的壓力感應觸控面板(圖未示)的基板15包含第一表面和第二表面。第一表面供使用者給予按壓動作。第二表面設置一電極層13。電極層13具有檢測觸控位置和檢測壓力大小的功能。基板15的材質可為硬質塑膠、強化玻璃或藍寶石玻璃等,此變形實施方式中基板15具有蓋板11的功能,無需再增加一層蓋板11。此變形實施方式的壓力感應觸控面板(圖未示)還可包含一光學層14。光學層14設置於基板15第二表面與電極層13之間。 Referring to FIG. 1 , a pressure-sensitive touch panel 1 of the present invention includes a cover 11 , an electrode layer 13 , an optical layer 14 , and a substrate 15 . The cover plate 11 has a first surface and a second surface, and the first surface is disposed opposite to the second surface. The first surface is for the user to give a pressing action. The electrode layer 13 is formed on the substrate 15. The optical layer 14 is located between the cover 11 and the electrode layer 13. The cover 11 may be made of a hard plastic such as hard plastic, tempered glass or sapphire glass. When the user applies a touch action to the cover 11 and the force is transmitted to the electrode layer 13 under the cover 11, the electrode layer 13 senses the position of the touch action and the force of the touch, and the amount of contact pressure. Different functional operations can be defined. Such a design can greatly improve the user experience and satisfaction of using the product. The material of the substrate 15 may be a rigid substrate such as glass, tempered glass or sapphire glass. The material of the substrate 15 may also be a soft substrate such as polyetheretherketone (PEEK), polyimide (PI), polyethylene terephthalate. (polyethylene terephthalate, PET), polycarbonate (PC), polyethylene succinate (PES), polymethylmethacrylate (PMMA) or a combination of any of the foregoing And other materials. As a modified embodiment, the substrate 15 of the pressure sensing touch panel (not shown) of the present invention includes a first surface and a second surface. The first surface is for the user to give a pressing action. An electrode layer 13 is disposed on the second surface. The electrode layer 13 has a function of detecting a touch position and detecting a magnitude of pressure. The material of the substrate 15 may be hard plastic, tempered glass or sapphire glass. In the modified embodiment, the substrate 15 has the function of the cover 11 and no additional cover 11 is needed. The pressure-sensitive touch panel (not shown) of this modified embodiment may further include an optical layer 14. The optical layer 14 is disposed between the second surface of the substrate 15 and the electrode layer 13.
請參照第2圖,本創作壓力感應觸控面板1之實施方式一中的電極層13包含複數個第一方向觸控感測電極串131和複數個第二方向觸控感測電極串133。第一方向觸控感測電極串131中交替設置有多個第一方向感應單元1311和多個第一方向連接部1313。同樣地,第二方向觸控感測電極串133中也交替設置有多個第二方向感應單元1331和多個第二方向連接部1333。各第二方向觸控感測電極串133包含第一端部1337和與第一端部1337相對的第二端部1338。多條第一方向觸控感測電極串131之間間隔均勻、平行設置。多條第二方向觸控感測電極串133也間隔均勻、平行設置。各第二方向感應單元1331中有正弦波線狀第二方向電極鏤空1335,當然也可以僅在複數第二方向觸控感測電極串133的第二方向感應單 元1331內設置第二方向電極鏤空1335。舉例而言,選取4條等間距的第二方向觸控感測電極串133,在其第二方向感應單元1331內設置第二方向電極鏤空1335。 Referring to FIG. 2 , the electrode layer 13 in the first embodiment of the pressure sensing touch panel 1 includes a plurality of first direction touch sensing electrode strings 131 and a plurality of second direction touch sensing electrode strings 133 . A plurality of first direction sensing units 1311 and a plurality of first direction connecting portions 1313 are alternately disposed in the first direction touch sensing electrode string 131. Similarly, the second direction touch sensing electrode string 133 is also alternately provided with a plurality of second direction sensing units 1331 and a plurality of second direction connecting portions 1333. Each of the second direction touch sensing electrode strings 133 includes a first end 1337 and a second end 1338 opposite the first end 1337. The plurality of first-direction touch sensing electrode strings 131 are evenly spaced and arranged in parallel. The plurality of second-direction touch sensing electrode strings 133 are also spaced evenly and in parallel. Each of the second direction sensing units 1331 has a sinusoidal line-shaped second direction electrode hollow 1335. Of course, the second direction sensing unit of the plurality of second direction touch sensing electrode strings 133 may be used. A second direction electrode hollow 1335 is provided in the element 1331. For example, four equally spaced second-direction touch sensing electrode strings 133 are selected, and a second direction electrode hollow 1335 is disposed in the second direction sensing unit 1331.
壓力感應觸控面板1中還有一電路系統19。電路系統19包含電極連接線191,軟性印刷電路板(Flexible Printed Circuit board,FPC)193以及壓力感測晶片195。壓力感測晶片195包含惠斯通電橋電路1951及其他模組電路(圖未示)。電極連接線191分為第一導線1911和第二導線1913,各第一導線1911的一端連接軟性印刷電路板193,另一端連接第二方向觸控感測電極串133的第一端部1337。同理,各第二導線1913的一端連接軟性印刷電路板193,另一端連接第二方向觸控感測電極串133的第二端部1338。第一方向觸控感測電極串131僅用於檢測觸控位置,其採用第一導線1911和第二導線1913。若第一導線1911或第二導線1913其中一根斷線,也不影響觸控位置的檢測。 There is also a circuit system 19 in the pressure sensing touch panel 1. The circuit system 19 includes an electrode connection line 191, a Flexible Printed Circuit Board (FPC) 193, and a pressure sensing wafer 195. The pressure sensing die 195 includes a Wheatstone bridge circuit 1951 and other module circuits (not shown). The electrode connection line 191 is divided into a first wire 1911 and a second wire 1913. One end of each of the first wires 1911 is connected to the flexible printed circuit board 193, and the other end is connected to the first end 1337 of the second direction touch sensing electrode string 133. Similarly, one end of each of the second wires 1913 is connected to the flexible printed circuit board 193, and the other end is connected to the second end portion 1338 of the second direction touch sensing electrode string 133. The first direction touch sensing electrode string 131 is only used to detect the touch position, and the first wire 1911 and the second wire 1913 are used. If one of the first wire 1911 or the second wire 1913 is broken, the detection of the touch position is not affected.
本創作壓力感應觸控面板1實現壓力感測的功能主要是根據外部施壓後第二方向觸控感測電極串133發生形變產生電阻值的改變這一情形。由於具有第二方向電極鏤空1335,所以第二方向觸控感測電極串133能夠發生較大的形變,且能兼顧第二方向觸控感測電極串133的位置檢測功能。第二方向觸控感測電極串133透過電極連接線191連接軟性印刷電路板193。第二方向觸控感測電極串133的電阻值變化會直接透過軟性印刷電路板193經由惠斯通電橋電路1951檢測出,再經壓力感測晶片195的其他模組電路處理,從而實現對 壓力的感測功能。一般情況下,第二方向觸控感測電極串133的形變和阻值的改變有以下公式: GF=(△R/R)/(△L/L);其中GF為應變計因數、R為第二方向觸控感測電極串133的初始電阻值、L為第二方向觸控感測電極串133的總長度、△R為第二方向觸控感測電極串133的電阻變化量以及△L為第二方向觸控感測電極串133長度的變化量。電阻變化量△R、初始電阻值以及總長度的數值固定不變的情形下,第二方向觸控感測電極串133的長度變化量△L越大,第二方向觸控感測電極串133的電阻變化量△R能更好的被檢測出。為得到較佳的感測效果,應變計因數的值必須大於0.5。 The function of the pressure sensing touch panel 1 to realize the pressure sensing is mainly based on the change of the resistance value caused by the deformation of the second direction touch sensing electrode string 133 after the external pressure is applied. Since the second direction electrode hollow 1335 is provided, the second direction touch sensing electrode string 133 can be deformed greatly, and the position detecting function of the second direction touch sensing electrode string 133 can be balanced. The second direction touch sensing electrode string 133 is connected to the flexible printed circuit board 193 through the electrode connection line 191. The change in the resistance value of the touch sensing electrode string 133 in the second direction is directly detected by the Wheatstone bridge circuit 1951 through the flexible printed circuit board 193, and then processed by other module circuits of the pressure sensing chip 195, thereby achieving Pressure sensing function. In general, the deformation and resistance values of the second-direction touch sensing electrode string 133 have the following formula: GF=(ΔR/R)/(ΔL/L); wherein GF is a strain gauge factor, R is an initial resistance value of the second direction touch sensing electrode string 133, and L is a second direction touch sensing electrode The total length of the string 133, ΔR is the amount of change in resistance of the second-direction touch-sensing electrode string 133, and ΔL is the amount of change in the length of the second-direction touch-sensing electrode string 133. In the case where the values of the resistance change amount ΔR, the initial resistance value, and the total length are fixed, the second direction touch sensing electrode string 133 has a larger length change amount ΔL, and the second direction touch sensing electrode string 133 The resistance change amount ΔR can be better detected. For better sensing results, the value of the strain gauge factor must be greater than 0.5.
請參照第3圖,本創作壓力感應觸控面板1實施方式一中惠斯通電橋電路1951可以檢測第二方向觸控感測電極串133的阻值的改變,從而進行後續信號處理。惠斯通電橋電路1951由輔助電阻(Ra)19511、輔助電阻(Rb)19515、輔助電阻(Rco)19513以及第二方向觸控感測電極串133構成。當第二方向觸控感測電極串133產生阻值的變化之後,引發該惠斯通電橋電路1951相應的電信號改變,其中惠斯通電橋電路1951的驅動電壓表示為VEX。於第3圖中,電阻變化量△R即為第二方向觸控感測電極串133的電阻變化量。惠斯通電橋電路1951檢測出第二方向觸控感測電極串133阻值變化量後,由壓力感測晶片195的其他模組電路做信號放大等處理。 Referring to FIG. 3, in the first embodiment of the present invention, the Wheatstone bridge circuit 1951 can detect the change of the resistance value of the second-direction touch sensing electrode string 133, thereby performing subsequent signal processing. The Wheatstone bridge circuit 1951 is composed of an auxiliary resistor (Ra) 19511, an auxiliary resistor (Rb) 19515, an auxiliary resistor (Rco) 19513, and a second direction touch sensing electrode string 133. After the second direction touch sensing electrode string 133 generates a change in resistance, the corresponding electrical signal change of the Wheatstone bridge circuit 1951 is initiated, wherein the driving voltage of the Wheatstone bridge circuit 1951 is represented as VEX. In FIG. 3, the resistance change amount ΔR is the resistance change amount of the second direction touch sensing electrode string 133. After the Wheatstone bridge circuit 1951 detects the resistance change amount of the second-direction touch sensing electrode string 133, the other module circuits of the pressure sensing chip 195 perform signal amplification and the like.
第4圖為電路系統19進行電信號掃描的時序圖。在時間t1至時間t2進行觸控位置的檢測,對應有觸控檢測電壓 Vtouch。當掃描完觸控位置電信號後,時間t3至時間t4進行壓力大小的檢測,對應有壓力檢測電壓Vpressure,此時觸控位置的檢測是關閉的狀態。同理,時間t5至時間t6又進行觸控位置的檢測,而時間t7至時間t8進行壓力大小的檢測,依次迴圈下去。 Figure 4 is a timing diagram of electrical circuit scanning by circuitry 19. The detection of the touch position is performed from time t1 to time t2, and corresponds to the touch detection voltage V touch . After the touch position electrical signal is scanned, the pressure is detected from time t3 to time t4, corresponding to the pressure detection voltage Vpressure , and the detection of the touch position is the closed state. Similarly, the detection of the touch position is performed from time t5 to time t6, and the pressure level is detected from time t7 to time t8, and the loop is sequentially looped down.
壓力感應觸控面板1檢測觸控位置的功能是透過系統檢測第一方向觸控感測電極串131和第二方向觸控感測電極串133對應位置的互電容變化信號,從而確定觸控點的位置。當系統檢測完觸控點位置後,關閉觸控檢測功能,在不同的時間段同樣利用第二方向觸控感測電極串133進行壓力的檢測,此壓力的檢測主要是透過檢測第二方向觸控感測電極串133因受力而產生形變導致的阻值的變化。透過這種不同時間段檢測不同信號的設置,可以有效的達到觸控位置檢測和壓力檢測的雙重功能,避免了信號之間的干擾。 The function of detecting the touch position of the pressure sensing touch panel 1 is to detect the mutual capacitance change signal of the corresponding position of the first direction touch sensing electrode string 131 and the second direction touch sensing electrode string 133 through the system, thereby determining the touch point. s position. After the system detects the position of the touch point, the touch detection function is turned off, and the second direction touch sensing electrode string 133 is also used for detecting the pressure in different time periods. The detection of the pressure is mainly through detecting the second direction touch. The sense electrode string 133 is controlled to undergo a change in resistance due to deformation. Through the detection of different signal settings in different time periods, the dual functions of touch position detection and pressure detection can be effectively achieved, and interference between signals is avoided.
第5圖繪示本創作壓力感應觸控面板之實施方式一之第2圖所示區域A的截面結構放大圖。如第5圖所示,透過在第二方向感應單元1331中進行線狀鏤空設計,第二方向電極鏤空1335使得對應的第二方向感應單元1331被分割為兩個部分,第二方向感應單元上半部13311和第二方向感應單元下半部13313的端部相互連接且相互並聯在一起。在系統進行壓力的檢測且觸控面板受力時,所述第二方向觸控感測電極串133的對應部位更加容易產生形變,電阻的變化量也相應增大,有利於壓力大小的準確檢測。 FIG. 5 is an enlarged cross-sectional view showing a region A shown in FIG. 2 of the first embodiment of the pressure sensing touch panel of the present invention. As shown in FIG. 5, by performing a linear hollow design in the second direction sensing unit 1331, the second direction electrode hollowing 1335 causes the corresponding second direction sensing unit 1331 to be divided into two parts, and the second direction sensing unit is The ends of the half portion 13311 and the second direction sensing unit lower half 13313 are connected to each other and connected in parallel with each other. When the system detects the pressure and the touch panel is stressed, the corresponding portion of the second-direction touch sensing electrode string 133 is more susceptible to deformation, and the amount of change in the resistance is correspondingly increased, which is favorable for accurate detection of the pressure. .
第二方向電極鏤空1335的鏤空面積為對應的第 二方向感應單元1331面積的10%至50%。當鏤空面積過大時,則會使得第二方向觸控感測電極串133與第一方向觸控感測電極串131間互電容減小,不利於觸控面板對觸控位置的檢測,當鏤空面積過小時,鏤空後形成的第二方向觸控感測電極串133的形狀受壓後不容易發生形變。 The hollow area of the second direction electrode hollow 1335 is the corresponding number The area of the two-direction sensing unit 1331 is 10% to 50%. When the cutout area is too large, the mutual capacitance between the second-direction touch sensing electrode string 133 and the first-direction touch sensing electrode string 131 is reduced, which is disadvantageous for detecting the touch position by the touch panel. When the area is too small, the shape of the second-direction touch sensing electrode string 133 formed after the hollowing is not easily deformed after being pressed.
第一方向觸控感測電極串131和第二方向觸控感測電極串133的材質可以為銦錫氧化物(Indium Tin Oxide,ITO)、摻銀銦錫氧化物、奈米銀線、石墨烯、奈米金屬網格或碳奈米管。由於銦錫氧化物有負的電阻溫度係數(當溫度升高時,則電阻率隨之減小),因此在室溫下測得銦錫氧化物電阻溫度係數為-650ppm/℃。而銀(Ag)和大多數金屬,有著大的正電阻溫度係數,室溫下電阻溫度係數為3800ppm/℃。當銀摻雜量為25at%,即能獲得室溫下最優壓阻性能,其電阻溫度係數在300℃至600℃時為130ppm/℃,約為未摻雜的五分之一。故採用摻銀銦錫氧化物能有效的解決溫度對銦錫氧化物阻值變化的雜訊影響。 The materials of the first direction touch sensing electrode string 131 and the second direction touch sensing electrode string 133 may be Indium Tin Oxide (ITO), silver-doped indium tin oxide, nano silver wire, graphite. Ane, nano metal mesh or carbon nanotubes. Since indium tin oxide has a negative temperature coefficient of resistance (the resistivity decreases as the temperature increases), the indium tin oxide temperature coefficient of resistance measured at room temperature is -650 ppm/°C. Silver (Ag) and most metals have a large positive temperature coefficient of resistance, and the temperature coefficient of resistance at room temperature is 3800ppm/°C. When the amount of silver doping is 25 at%, the optimum piezoresistive property at room temperature can be obtained, and the temperature coefficient of resistance is 130 ppm/° C. at 300 ° C to 600 ° C, which is about one fifth of undoped. Therefore, the use of silver-doped indium tin oxide can effectively solve the noise influence of the temperature on the resistance change of indium tin oxide.
由於對第二方向觸控感測電極串133進行了線狀鏤空處理,蝕刻線較多且較雜,容易影響到視覺效果,壓力感應觸控面板1中的光學層14設置在蓋板11和電極層13之間可以有效的解決此問題。光學層14由單層低折射率材料製作而成,或一層高折射率材料和一層低折射率材料構成。 Since the second direction touch sensing electrode string 133 is linearly hollowed out, the etching line is more and more complicated, and the visual effect is easily affected. The optical layer 14 in the pressure sensing touch panel 1 is disposed on the cover 11 and This problem can be effectively solved between the electrode layers 13. The optical layer 14 is made of a single layer of low refractive index material, or a layer of high refractive index material and a layer of low refractive index material.
所述低折射率為折射率小於1.6,優選為1.1至1.6,優選的折射率為1.1、1.25、1.32、1.38、1.46、1.50或1.52。這時低折射率光學層14的材料可以為有機物或無機物、 或有機-無機混合塗層。例如:矽氧化物、氯氟化物、氟化鎂、二氧化矽、氟化鋰、氟化鈉、氧化鎂、矽酸鹽、聚氨酯、聚甲基丙烯酸甲酯(polymethylmethacrylate,PMMA)、聚乙烯醇(polyvinyl alcohol,PVA)、聚乙烯吡咯烷酮(polyvinylpyrrolidone,PVP)、有機矽、氟聚合物、丙烯酸樹脂、丙烯酸樹脂與矽石奈米顆粒的混合物或膠黏劑。 The low refractive index is a refractive index of less than 1.6, preferably from 1.1 to 1.6, and a preferred refractive index is 1.1, 1.25, 1.32, 1.38, 1.46, 1.50 or 1.52. At this time, the material of the low refractive index optical layer 14 may be organic or inorganic, Or an organic-inorganic hybrid coating. For example: cerium oxide, chlorofluoride, magnesium fluoride, cerium oxide, lithium fluoride, sodium fluoride, magnesium oxide, citrate, polyurethane, polymethylmethacrylate (PMMA), polyvinyl alcohol (polyvinyl alcohol, PVA), polyvinylpyrrolidone (PVP), organic hydrazine, fluoropolymer, acrylic resin, a mixture of acrylic resin and vermiculite nanoparticles or an adhesive.
高折射率為折射率大於1.8,優選為1.8至2.7,優選的折射率為1.8、1.85、2.0、2.2、2.4或2.7。這時高折射率光學層14材料可以為有機物或無機物、或有機-無機混合塗層,例如:鉭氧化物、鈦氧化物、鈮氧化物、鉛氧化物、鋅硫化物、鋯氧化物、聚醯亞胺、鋯氧化物(ZrO2)、鉛氧化物(Pb5O11)、鉭氧化物(Ta2O5)、五氧化二鈮、二氧化鈦、矽膠、丙烯酸樹脂與二氧化鈦奈米顆粒的混合物。 The high refractive index is a refractive index greater than 1.8, preferably 1.8 to 2.7, and a preferred refractive index is 1.8, 1.85, 2.0, 2.2, 2.4 or 2.7. At this time, the material of the high refractive index optical layer 14 may be organic or inorganic, or an organic-inorganic hybrid coating such as cerium oxide, titanium oxide, cerium oxide, lead oxide, zinc sulfide, zirconium oxide, polyfluorene. Imine, zirconium oxide (ZrO 2 ), lead oxide (Pb 5 O 11 ), tantalum oxide (Ta 2 O 5 ), tantalum pentoxide, titanium dioxide, tannin, a mixture of acrylic resin and titanium dioxide nanoparticles.
請參照第6至8圖,本創作實施方式一壓力感應觸控面板1中第二方向感應單元1331的鏤空形狀還可以為鋸齒線狀鏤空、螺旋線狀鏤空或十字交錯線狀鏤空,當然也可以為方波線狀鏤空(圖未示)。 Referring to FIGS. 6-8, the hollow shape of the second direction sensing unit 1331 in the pressure sensing touch panel 1 of the present invention may also be a sawtooth linear hollow, a spiral hollow or a cross-stitched hollow. It can be a square wave hollow (not shown).
請參照第9圖,本創作壓力感應觸控面板2實施方式二中,第一方向觸控感測電極串231的各第一方向感應單元2311中也進行線狀鏤空設計,形成多個第一方向電極鏤空2315。第一方向電極鏤空2315和第二方向電極鏤空2335的鏤空形狀相同且相對位置固定。透過在第一方向觸控感測電極串231和第二方向觸控感測電極串233進行鏤空設計,在系統進行壓力掃描檢測時,阻值的改變越大,越有利於系統的檢測。 當然,與實施方式一的壓力感應觸控面板1相比,也可以僅在複數條第一方向觸控感測電極串231的第一方向感應單元2311增加設置線狀鏤空結構,如在第一方向觸控感測電極串231中選取等間距分佈的4條,在其第一方向感應單元2311內設置線狀第一方向電極鏤空2315。第一方向觸控感測電極串231的電阻值變化會直接透過軟性印刷電路板293經由惠斯通電橋電路2951檢測出。 Referring to FIG. 9 , in the second embodiment of the pressure sensing touch panel 2 , the first direction sensing unit 2311 of the first direction touch sensing electrode string 231 also performs a linear hollow design to form a plurality of first The direction electrode is hollowed out at 2315. The hollow shape of the first direction electrode hollow 2315 and the second direction electrode hollow 2335 are the same and the relative positions are fixed. By performing the hollowing out design in the first direction of the touch sensing electrode string 231 and the second direction touch sensing electrode string 233, when the system performs pressure scanning detection, the greater the change of the resistance value, the more favorable the system detection. As a result, the first direction sensing unit 2311 of the plurality of first-direction touch sensing electrode strings 231 can be added with a linear hollow structure, as in the first, compared with the pressure-sensitive touch panel 1 of the first embodiment. Four pairs of equally spaced distributions are selected in the direction touch sensing electrode string 231, and a linear first direction electrode hollow 2315 is disposed in the first direction sensing unit 2311. The change in the resistance value of the first-direction touch sensing electrode string 231 is directly detected by the Wheatstone bridge circuit 2951 through the flexible printed circuit board 293.
第一方向觸控感測電極串231及第二方向觸控感測電極串233同時兼具觸控位置檢測和壓力檢測功能,只需在現有的第一方向觸控感測電極串231、第二方向觸控感測電極串233及電極連接線291做相應的改變,避免了額外的增加一層壓力感測電極層,節省了成本,而且更加符合產品輕薄化的理念。 The first direction touch sensing electrode string 231 and the second direction touch sensing electrode string 233 have both touch position detection and pressure detection functions, and only need to touch the sensing electrode string 231 in the first direction. The two-direction touch sensing electrode string 233 and the electrode connecting line 291 are correspondingly changed, thereby avoiding an additional layer of pressure sensing electrode layer, saving cost, and more conforming to the concept of thinning and thinning of the product.
第10圖繪示本創作第9圖中區域B的截面結構放大圖。如第10圖所示,由於第一方向觸控感測電極串231和第二方向觸控感測電極串233位於同一電極層23,所以相交的部位需要絕緣塊235來進行電性隔開,避免信號的干擾。於第9圖中,第二方向連接部2333和第一方向連接部2313被絕緣塊235隔開,此設置可以有效的避免兩個方向電極電連接而無法檢測觸控位置和壓力大小。 Fig. 10 is an enlarged view showing a cross-sectional structure of a region B in Fig. 9 of the present creation. As shown in FIG. 10, since the first direction touch sensing electrode string 231 and the second direction touch sensing electrode string 233 are located on the same electrode layer 23, the intersecting portions require the insulating block 235 to be electrically separated. Avoid signal interference. In FIG. 9, the second direction connecting portion 2333 and the first direction connecting portion 2313 are separated by the insulating block 235. This arrangement can effectively prevent the two direction electrodes from being electrically connected and cannot detect the touch position and the pressure.
請參照第11圖,本創作壓力感應觸控面板3之實施方式三中電極層33包含多條第一方向觸控感測電極串331。各第一方向觸控感測電極串331包含第一觸控感測電極3311和第二觸控感測電極3313。第一觸控感測電極3311包含 多個第一觸控感測電極凸出部33111。第二觸控感測電極3313同樣包含多個第二觸控感測電極凸出部33131且在第二觸控感測電極3313中進行鏤空處理形成第二電極鏤空33133。第二電極鏤空33133的面積為對應的第二觸控感測電極3313面積的10%至50%。第一觸控感測電極3311和第二觸控感測電極3313交錯互補,且彼此不接觸,此種設計可以減少第一觸控感測電極3311和第二觸控感測電極3313之間的橋接結構。 Referring to FIG. 11 , in the third embodiment of the pressure sensing touch panel 3 , the electrode layer 33 includes a plurality of first direction touch sensing electrode strings 331 . Each of the first direction touch sensing electrode strings 331 includes a first touch sensing electrode 3311 and a second touch sensing electrode 3313. The first touch sensing electrode 3311 includes A plurality of first touch sensing electrode protrusions 33111. The second touch sensing electrode 3313 also includes a plurality of second touch sensing electrode protrusions 33131 and is hollowed out in the second touch sensing electrode 3313 to form a second electrode hollow 33133. The area of the second electrode cutout 33133 is 10% to 50% of the area of the corresponding second touch sensing electrode 3313. The first touch sensing electrode 3311 and the second touch sensing electrode 3313 are alternately complementary and do not contact each other. This design can reduce the relationship between the first touch sensing electrode 3311 and the second touch sensing electrode 3313. Bridging structure.
請參照第12圖,本創作實施方式四壓力感應觸控面板4包含蓋板41、第一電極層421、第一基板42、第二電極層431以及第二基板43。第一電極層421形成在第一基板42之上。第二電極層431形成在第二基板43上。作為實施方式四的變形,第一電極層421與該第二電極層431分別形成在該第一基板42的上下表面,無需再設置第二基板43。 Referring to FIG. 12 , the pressure sensing touch panel 4 of the present invention includes a cover 41 , a first electrode layer 421 , a first substrate 42 , a second electrode layer 431 , and a second substrate 43 . The first electrode layer 421 is formed over the first substrate 42. The second electrode layer 431 is formed on the second substrate 43. As a modification of the fourth embodiment, the first electrode layer 421 and the second electrode layer 431 are respectively formed on the upper and lower surfaces of the first substrate 42, and the second substrate 43 is not required to be provided.
請參照第13圖,本創作實施方式四壓力感應觸控面板4中第一電極層421包含多條第一方向觸控感測電極串4211。第一方向觸控感測電極串4211包含多個第一方向感應單元42111、第一方向連接部42115以及第一方向電極鏤空42113。第一方向電極鏤空42113呈曲線形且形成在第一方向感應單元42111中。第一方向觸控感測電極串4211的電阻值變化會直接透過軟性印刷電路板493經由惠斯通電橋電路4951檢測出,再經壓力感測晶片495的其他模組電路處理,從而實現對壓力的感測功能。 Referring to FIG. 13 , the first electrode layer 421 of the pressure sensing touch panel 4 of the present invention includes a plurality of first direction touch sensing electrode strings 4211 . The first direction touch sensing electrode string 4211 includes a plurality of first direction sensing units 42111, a first direction connecting portion 42115, and a first direction electrode hollow 42113. The first direction electrode hollow 42113 is curved and formed in the first direction sensing unit 42111. The resistance value change of the first direction touch sensing electrode string 4211 is directly detected by the Wheatstone bridge circuit 4951 through the flexible printed circuit board 493, and then processed by other module circuits of the pressure sensing chip 495, thereby achieving pressure. Sensing function.
請參照第14圖,本創作實施方式四壓力感應觸控面板4中第二電極層431包含多條第二方向觸控感測電極串 4311。第二方向觸控感測電極串4311包含多個第二方向感應單元43111。第二方向連接部43115和第二方向電極鏤空43113,第二方向電極鏤空43113呈曲線形且形成在第二方向感應單元43111中。 Referring to FIG. 14 , the second electrode layer 431 of the pressure sensing touch panel 4 of the present invention includes a plurality of second direction touch sensing electrode strings. 4311. The second direction touch sensing electrode string 4311 includes a plurality of second direction sensing units 43111. The second direction connecting portion 43115 and the second direction electrode hollow 43113, and the second direction electrode hollow 43113 are curved and formed in the second direction sensing unit 43111.
相比於第一電極層421中的多條第一方向觸控感測電極串4211,第二電極層431中的多條第二方向觸控感測電極串4311同樣具有第二方向電極鏤空43113。在系統進行分時序掃描電信號的時候,關閉觸控位置檢測功能,進行壓力的檢測,此時可以同時對第一方向觸控感測電極串4211和第二方向觸控感測電極串4311的對應位置進行壓力信號的掃描,由於同時具有兩個面上的掃描檢測,所以信號會比只對第一電極層421中的第一方向觸控感測電極串4211進行掃描所得到的信號更強。由於第二電極層431位於遠離蓋板41的位置,當有使用者施力的時候,其能夠帶來的電阻值的改變量相對較小,且在第二電極層431上進行曲線鏤空會增加額外成本,所以在實際的生產加工過程中,可以選擇不在第二電極層431中的第二方向觸控感測電極串4311中進行線狀鏤空處理。當然,也可以僅在所述的第一方向觸控感測電極串4211中挑選等間距排列的複數條做線狀鏤空處理,具有壓力檢測功能,如選取四條或者十條等。當然,也可以僅在第一方向觸控感測電極串4211和第二方向觸控感測電極串4311中分別選取相同數量的等間距排列的電極串做線狀鏤空處理,具有壓力檢測功能,如分別選取四條或十條等。 Compared with the plurality of first-direction touch sensing electrode strings 4211 in the first electrode layer 421, the plurality of second-direction touch sensing electrode strings 4311 in the second electrode layer 431 also have the second direction electrode hollow 43113 . When the system performs the time-series scanning electrical signal, the touch position detecting function is turned off, and the pressure is detected. At this time, the first direction touch sensing electrode string 4211 and the second direction touch sensing electrode string 4311 can be simultaneously The scanning of the pressure signal is performed at the corresponding position. Since the scanning detection is performed on both sides at the same time, the signal is stronger than the signal obtained by scanning only the first-direction touch sensing electrode string 4211 in the first electrode layer 421. . Since the second electrode layer 431 is located away from the cover 41, when the user applies a force, the amount of change in the resistance value that can be brought about is relatively small, and the curve hollowing on the second electrode layer 431 increases. The additional cost, so in the actual production process, the linear short-cut processing in the second-direction touch sensing electrode string 4311 in the second electrode layer 431 may be selected. Of course, it is also possible to select a plurality of equally spaced strips in the first direction touch sensing electrode string 4211 for linear hollowing, and have a pressure detecting function, such as selecting four or ten strips. Of course, it is also possible to select the same number of equally spaced electrode strings in the first direction touch sensing electrode string 4211 and the second direction touch sensing electrode string 4311 for linear hollowing, which has a pressure detecting function. For example, four or ten are selected separately.
最後應說明的是,以上各實施方式僅用以說明本 創作的技術手段,而非對其限制。儘管參照前述各實施方式對本創作進行了詳細的說明,本領域的普通技術人員應當理解,其依然可以對前述各實施方式所記載的技術手段進行修改,或者對其中部分或者全部技術特徵進行等同替換,而這些修改或者替換,並不使相應技術手段的本質脫離本創作各實施方式技術手段的範圍。 Finally, it should be noted that the above embodiments are only used to illustrate this The technical means of creation, not the limitations. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical means described in the foregoing embodiments may be modified or equivalently replaced with some or all of the technical features. And such modifications or substitutions do not detract from the nature of the corresponding technical means.
13‧‧‧電極層 13‧‧‧Electrode layer
131‧‧‧第一方向觸控感測電極串 131‧‧‧First direction touch sensing electrode string
1311‧‧‧第一方向感應單元 1311‧‧‧First direction sensing unit
1313‧‧‧第一方向連接部 1313‧‧‧First direction connection
133‧‧‧第二方向觸控感測電極串 133‧‧‧Second direction touch sensing electrode string
1331‧‧‧第二方向感應單元 1331‧‧‧Second direction sensing unit
1333‧‧‧第二方向連接部 1333‧‧‧Second direction connection
1335‧‧‧第二方向電極鏤空 1335‧‧‧Second direction electrode hollowing out
1337‧‧‧第一端部 1337‧‧‧First end
1338‧‧‧第二端部 1338‧‧‧second end
19‧‧‧電路系統 19‧‧‧Circuit system
191‧‧‧電極連接線 191‧‧‧Electrode cable
1911‧‧‧第一導線 1911‧‧‧First wire
1913‧‧‧第二導線 1913‧‧‧second wire
193‧‧‧軟性印刷電路板 193‧‧‧Soft printed circuit board
195‧‧‧壓力感測晶片 195‧‧‧ Pressure Sensing Wafer
1951‧‧‧惠斯通電橋電路 1951‧‧‧ Wheatstone Bridge Circuit
A‧‧‧區域 A‧‧‧ area
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CN203930771U (en) * | 2014-06-12 | 2014-11-05 | 宸鸿科技(厦门)有限公司 | A kind of contact panel |
CN104281328A (en) * | 2014-10-31 | 2015-01-14 | 合肥鑫晟光电科技有限公司 | Touch screen and display panel |
CN106325578B (en) * | 2015-07-10 | 2023-07-25 | 宸鸿科技(厦门)有限公司 | Pressure sensing touch panel |
-
2015
- 2015-07-10 CN CN201510404475.1A patent/CN106325578B/en active Active
-
2016
- 2016-05-02 TW TW105206261U patent/TWM526124U/en not_active IP Right Cessation
- 2016-05-02 TW TW105113662A patent/TWI584176B/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI584176B (en) * | 2015-07-10 | 2017-05-21 | 宸鴻科技(廈門)有限公司 | Pressure sensing touch panel |
TWI686594B (en) * | 2016-09-14 | 2020-03-01 | 大陸商宸鴻科技(廈門)有限公司 | Pressure sensing module and pressure sensing touch control system |
TWI812297B (en) * | 2022-06-22 | 2023-08-11 | 大陸商宸美(廈門)光電有限公司 | Touchpad assembly |
Also Published As
Publication number | Publication date |
---|---|
CN106325578A (en) | 2017-01-11 |
TW201702835A (en) | 2017-01-16 |
CN106325578B (en) | 2023-07-25 |
TWI584176B (en) | 2017-05-21 |
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