TW201903575A - Transparent ultrasonic transducer input device - Google Patents
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- TW201903575A TW201903575A TW106119635A TW106119635A TW201903575A TW 201903575 A TW201903575 A TW 201903575A TW 106119635 A TW106119635 A TW 106119635A TW 106119635 A TW106119635 A TW 106119635A TW 201903575 A TW201903575 A TW 201903575A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/043—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
- G06F3/0433—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves in which the acoustic waves are either generated by a movable member and propagated within a surface layer or propagated within a surface layer and captured by a movable member
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04108—Touchless 2D- digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface without distance measurement in the Z direction
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Abstract
Description
本創作是有關一種輸入裝置,特別是指透明超音波換能器輸入裝置。This creation is about an input device, especially a transparent ultrasonic transducer input device.
消費性電子產品種類多元,其中觸控型電子產品已相當普及,可攜式電子產品(例如:智慧型手機、平板電腦)或穿戴式電子產品(例如:智慧型手錶)…等,都是常見的消費性電子產品。一般來說,觸控型電子產品包含一觸控面板作為一輸入裝置,使用者的手指需實際接觸該電子產品的表面,才能對電子產品進行觸控操作。There are many types of consumer electronic products. Among them, touch-type electronic products have become quite popular. Portable electronic products (such as smart phones and tablets) or wearable electronic products (such as smart watches) are common. Consumer electronics. Generally, a touch-type electronic product includes a touch panel as an input device, and a user's finger must actually touch the surface of the electronic product in order to perform touch operations on the electronic product.
然而,對於較小尺寸的電子產品來說,例如智慧型手錶,其尺寸比一般智慧型手機或平板電腦更小,故智慧型手錶的觸控操作範圍受到限制。當智慧型手錶的觸控介面呈現數個輸入鍵時,例如該等輸入鍵分別作為數字輸入鍵,各輸入鍵所分配到的面積甚小,且相鄰輸入鍵的位置彼此靠近,如此一來,使用者不容易在智慧型手錶上觸碰想要的輸入鍵,容易發生誤觸,造成使用上的困擾。However, for smaller-sized electronic products, such as smart watches, their size is smaller than that of general smart phones or tablet computers, so the touch operation range of smart watches is limited. When the touch interface of a smart watch presents several input keys, for example, these input keys are used as numeric input keys, the area allocated to each input key is very small, and the positions of adjacent input keys are close to each other. , The user is not easy to touch the desired input key on the smart watch, it is easy to accidentally touch, causing trouble in use.
有鑒於此,本創作的主要目的是提供一種透明超音波換能器輸入裝置,其可供結合在電子產品以作為非接觸式的輸入裝置,本創作輸入裝置的操作範圍不受限於電子產品的尺寸,對於使用者來說,使用的便利性可以提升。In view of this, the main purpose of this creation is to provide a transparent ultrasonic transducer input device, which can be combined with electronic products as a non-contact input device. The operating range of this creative input device is not limited to electronic products For the user, the convenience of use can be improved.
本創作透明超音波換能器輸入裝置包含: 一透明基板,具有一表面; 複數輸入元件,相鄰地設置於該透明基板的該表面,各該輸入元件包含陣列排列的複數超音波換能器,各該超音波換能器包含一透明可振盪膜; 於該等輸入元件之兩相鄰輸入元件中,其中之一輸入元件之超音波換能器的振盪頻率相異於另一輸入元件之超音波換能器的振盪頻率。The input device for the transparent ultrasonic transducer of the present invention comprises: a transparent substrate having a surface; a plurality of input elements disposed adjacent to the surface of the transparent substrate, each input element including an array of a plurality of ultrasonic transducers Each of the ultrasonic transducers includes a transparent oscillating film; among two adjacent input elements of the input elements, the oscillation frequency of the ultrasonic transducer of one of the input elements is different from that of the other input element. Oscillation frequency of an ultrasonic transducer.
根據本創作的結構,本創作可結合於電子產品,例如疊合於電子產品的顯示螢幕,因為本創作整體為透明,故不致影響電子產品的視覺觀感;再者,當外界物體(例如:使用者的手)置於任一輸入元件的外側但不接觸輸入元件或電子產品,該輸入元件可產生振盪頻率,其中,本創作之不同輸入元件在感應到外界物體時反映出的振盪頻率彼此不同。所以,本創作根據各輸入元件之振盪頻率的量測結果,可以判斷出是哪一個輸入元件被使用者所操作,達到非接觸式輸入的功效。According to the structure of this creation, this creation can be combined with electronic products, such as superimposed on the display screen of electronic products. Because this creation is transparent as a whole, it will not affect the visual perception of electronic products. Furthermore, when external objects (such as: using (Hand of the person) placed on the outside of any input element without touching the input element or electronic product, the input element can generate an oscillation frequency, wherein the different input elements of this creation reflect different oscillation frequencies when they sense external objects . Therefore, based on the measurement results of the oscillation frequency of each input element, this creation can determine which input element is operated by the user to achieve the effect of non-contact input.
本創作可供使用者觀看電子產品的顯示螢幕時,同時進行非接觸操作,因為使用者不需實際接觸電子產品即可進行輸入的動作,本創作的操作範圍自然不受限於電子產品的尺寸,和先前技術相比,本創作可提供較廣的操作範圍,使用的便利性大幅提升。This creation allows users to simultaneously perform non-contact operations while viewing the display screen of an electronic product, because the user can perform input actions without actually touching the electronic product, so the scope of operation of this creation is naturally not limited to the size of the electronic product Compared with the previous technology, this creation can provide a wider range of operation and greatly improve the convenience of use.
本創作係透明超音波換能器輸入裝置,請參考圖1與圖2所示的實施例,本創作透明超音波換能器輸入裝置包含一透明基板10與複數輸入元件20。該透明基板10具有一表面,該透明基板10的該表面可為一平面或一曲面,該透明基板10可為具有厚度的平板而具有支撐性或可撓性,以供設置在一電子產品中。該等輸入元件20係相鄰地設置於該透明基板10的該表面,使該等輸入元件20可位於同一平面或同一曲面,且該等輸入元件20彼此分離設置,使相鄰的輸入元件20之間維持一間隔30而彼此錯開而不重疊,藉此避免相鄰的輸入元件20之信號彼此干擾。This creation is a transparent ultrasonic transducer input device. Please refer to the embodiments shown in FIG. 1 and FIG. 2. The creation of a transparent ultrasonic transducer input device includes a transparent substrate 10 and a plurality of input elements 20. The transparent substrate 10 has a surface. The surface of the transparent substrate 10 can be a flat surface or a curved surface. The transparent substrate 10 can be a flat plate with a thickness and can be supported or flexible for installation in an electronic product. . The input elements 20 are disposed adjacent to the surface of the transparent substrate 10 so that the input elements 20 can be located on the same plane or the same curved surface, and the input elements 20 are separated from each other so that the adjacent input elements 20 An interval 30 is maintained between each other without being overlapped, thereby avoiding that signals of adjacent input elements 20 interfere with each other.
各該輸入元件20包含陣列排列的複數超音波換能器21,各該超音波換能器21包含一透明可振盪膜210,於該等輸入元件20之任兩相鄰輸入元件20當中,其中之一輸入元件20之超音波換能器21的振盪頻率相異於另一輸入元件20之超音波換能器21的振盪頻率。請參考圖2,所述超音波換能器21的實施例包含一透明下電極層211、一透明邊牆212、一透明上電極層213與該透明可振盪膜210,該透明下電極層211設置於該透明基板10的表面,該透明邊牆212設置於該透明基板10上,如圖2所示,該透明邊牆212設置在該透明下電極層211的表面,該透明可振盪膜210設置於該透明邊牆212上,使該透明下電極層211、該透明邊牆212與該透明可振盪膜210之間形成一空間214,該空間214可供該透明可振盪膜210產生振盪,該透明上電極層213設置於該透明可振盪膜210之頂面(即:相對於該空間214的另一表面)。Each of the input elements 20 includes a plurality of ultrasonic transducers 21 arranged in an array, and each of the ultrasonic transducers 21 includes a transparent oscillating film 210 among any two adjacent input elements 20 of the input elements 20, wherein The oscillation frequency of the ultrasonic transducer 21 of one input element 20 is different from the oscillation frequency of the ultrasonic transducer 21 of the other input element 20. Please refer to FIG. 2. The embodiment of the ultrasonic transducer 21 includes a transparent lower electrode layer 211, a transparent side wall 212, a transparent upper electrode layer 213 and the transparent oscillating film 210. The transparent lower electrode layer 211 The transparent side wall 212 is disposed on the surface of the transparent substrate 10. As shown in FIG. 2, the transparent side wall 212 is disposed on the surface of the transparent lower electrode layer 211 and the transparent oscillating film 210. Is arranged on the transparent side wall 212, so that a space 214 is formed between the transparent lower electrode layer 211, the transparent side wall 212 and the transparent oscillating film 210, and the space 214 can be used for the transparent oscillating film 210 to oscillate, The transparent upper electrode layer 213 is disposed on a top surface of the transparent oscillating film 210 (ie, another surface opposite to the space 214).
該等輸入元件20的超音波換能器21可採相同的微機電製程加工製作成型,其中,該透明基板10可為選自玻璃、矽膠、樹脂、塑膠、聚酯類、聚醯亞氨、光阻劑、高分子材料所構成之群組中至少一種材料所製成的構件。該透明下電極層211可為選自透明導電氧化物薄膜、氧化銦錫薄膜、氧化鋅薄膜、奈米碳管、奈米銀、銀絲墨等所構成之群組中之一種材料所製成的構件。該透明可振盪膜210可為選自玻璃、矽膠、樹脂、塑膠、聚酯類、聚醯亞氨、光阻劑、高分子材料所構成之群組中至少一種材料所製成的構件。該透明上電極層213可為選自透明導電氧化物薄膜、氧化銦錫薄膜、氧化鋅薄膜、奈米碳管、奈米銀、銀絲墨等所構成之群組中之一種材料所製成的構件。本創作實施例中,該透明基板20為PET(Polyethylene Terephthalate)板,該透明下電極層211為氧化銦錫薄膜,該透明邊牆212及該透明可振盪膜210皆為SU-8光阻劑製成的構件,該透明上電極層213為奈米銀薄膜。The ultrasonic transducers 21 of the input elements 20 can be processed and fabricated by the same MEMS process. The transparent substrate 10 can be selected from glass, silicone, resin, plastic, polyester, polyimide, A member made of at least one material from the group consisting of a photoresist and a polymer material. The transparent lower electrode layer 211 may be made of a material selected from the group consisting of a transparent conductive oxide film, an indium tin oxide film, a zinc oxide film, a nano carbon tube, nano silver, and silver silk ink. Building blocks. The transparent oscillating film 210 may be a member made of at least one material selected from the group consisting of glass, silicone, resin, plastic, polyester, polyimide, photoresist, and polymer material. The transparent upper electrode layer 213 may be made of a material selected from the group consisting of a transparent conductive oxide film, an indium tin oxide film, a zinc oxide film, a nano carbon tube, nano silver, and silver silk ink. Building blocks. In this creative embodiment, the transparent substrate 20 is a PET (Polyethylene Terephthalate) board, the transparent lower electrode layer 211 is an indium tin oxide film, the transparent side wall 212 and the transparent oscillating film 210 are both SU-8 photoresist The fabricated member, the transparent upper electrode layer 213 is a nano-silver film.
該透明下電極層211與該透明上電極層213電連接一驅動裝置(圖中未示),由該驅動裝置對該透明下電極層211與該透明上電極層213施以交流驅動電壓時,可驅動該透明可振盪膜210進行高頻振盪,進而產生一超音波,請配合參考圖3,當該超音波被一外界物體40(例如使用者的手指)干擾而反射,導致該透明可振盪膜210變形而發生電容改變,藉由電容改變得到一反射訊號,利用該超音波的一發出時間與該反射訊號的一接收時間的時間差計算出各輸入元件20與外界物體40之距離。When the transparent lower electrode layer 211 and the transparent upper electrode layer 213 are electrically connected to a driving device (not shown), when the driving device applies an AC driving voltage to the transparent lower electrode layer 211 and the transparent upper electrode layer 213, The transparent oscillating film 210 can be driven to oscillate at a high frequency, thereby generating an ultrasonic wave. Please refer to FIG. 3. When the ultrasonic wave is reflected by interference from an external object 40 (such as a user's finger), the transparent oscillating film is caused. The capacitance of the film 210 is changed to change the capacitance. A reflected signal is obtained through the capacitance change. The distance between each input element 20 and the external object 40 is calculated by using the time difference between the time when the ultrasonic wave is transmitted and the time when the reflected signal is received.
以下說明該等輸入元件20的細部結構特徵,於同一個輸入元件20所包含之複數超音波換能器21的透明可振盪膜的尺寸彼此相同,而於任兩相鄰的輸入元件20中,其中之一輸入元件20之超音波換能器21的透明可振盪膜尺寸相異於另一輸入元件20之超音波換能器21的透明可振盪膜尺寸。進一步而言,不同輸入元件20之超音波換能器21的透明可振盪膜210尺寸皆彼此不同,導致不同輸入元件20之超音波換能器21的振盪頻率彼此不同。請參考圖1,於本創作實施例中,各超音波換能器21的俯視為圓形,故其透明可振盪膜210可為圓形薄膜,其具有一直徑,透明可振盪膜210的直徑與振盪頻率形成反比關係,所以,不同輸入元件20之超音波換能器21的透明可振盪膜210的直徑皆彼此不同,導致不同輸入元件20之超音波換能器21的振盪頻率彼此不同。The detailed structural features of the input elements 20 will be described below. The transparent oscillating films of the multiple ultrasonic transducers 21 included in the same input element 20 have the same size as each other, and in any two adjacent input elements 20, The size of the transparent oscillating film of the ultrasonic transducer 21 of one of the input elements 20 is different from the size of the transparent oscillating film of the ultrasonic transducer 21 of the other input element 20. Furthermore, the sizes of the transparent oscillating films 210 of the ultrasonic transducers 21 of different input elements 20 are different from each other, which results in that the oscillation frequencies of the ultrasonic transducers 21 of different input elements 20 are different from each other. Please refer to FIG. 1. In this creative embodiment, each of the ultrasonic transducers 21 is circular in plan view, so the transparent oscillating film 210 may be a circular film having a diameter, and the diameter of the transparent oscillating film 210. It has an inverse relationship with the oscillation frequency. Therefore, the diameters of the transparent oscillating films 210 of the ultrasonic transducers 21 of different input elements 20 are different from each other, which results in the oscillation frequencies of the ultrasonic transducers 21 of different input elements 20 being different from each other.
本創作實施例以十二個輸入元件20為例,對前述各輸入元件20的超音波換能器21施以100V直流準位的300V交流電的測試電壓,以供各輸入元件20的超音波換能器21振盪產生超音波,並在振盪狀態之各輸入元件20外側一公分處設置一外界物體,以量測各輸入元件20之超音波換能器21的振盪頻率。請配合參考下表、圖4A~圖4L所示的頻率響應圖以及圖5A~圖5L所示的時間響應圖,本創作實施例中,該十二個輸入元件20之超音波換能器21的透明可振盪膜210的直徑由小而大可分別為92、94、97、100、103、106、110、114、119、124、130與137微米(μm),根據量測結果,其振盪頻率分別為1.63、1.59、1.51、1.48、1.41、1.35、1.18、1.13、1.10、1.00、0.92與0.85MHz(分別取自圖4A~圖4L的峰值)。由此可見,不同輸入元件20之超音波換能器21的透明可振盪膜210的直徑皆彼此不同,其振盪頻率也彼此不同,直徑越大的超音波換能器21具有越低的振盪頻率。圖6顯示不同超音波換能器21在不同直徑下的頻寬分佈,且從圖5A~圖5L所示的時間響應圖來看,直徑越大的超音波換能器21具有越大的振盪幅度。所以,根據各輸入元件20之振盪頻率的量測結果,即可判斷出是哪一個輸入元件20被使用者所操作。This creative embodiment takes twelve input elements 20 as an example, and applies a test voltage of 300V AC at a 100V DC level to the ultrasonic transducer 21 of each of the aforementioned input elements 20 for the ultrasonic conversion of each input element 20 The energy generator 21 oscillates to generate an ultrasonic wave, and an external object is set at a centimeter outside of each input element 20 in an oscillating state to measure the oscillation frequency of the ultrasonic transducer 21 of each input element 20. Please refer to the following table, the frequency response diagrams shown in FIGS. 4A to 4L, and the time response diagrams shown in FIGS. 5A to 5L. In this creative embodiment, the ultrasonic transducer 21 of the twelve input elements 20 The diameter of the transparent oscillating film 210 can be 92, 94, 97, 100, 103, 106, 110, 114, 119, 124, 130, and 137 micrometers (μm) from small to large, according to the measurement results. The frequencies are 1.63, 1.59, 1.51, 1.48, 1.41, 1.35, 1.18, 1.13, 1.10, 1.00, 0.92, and 0.85MHz (taken from the peaks in Figures 4A to 4L, respectively). It can be seen that the diameters of the transparent oscillating films 210 of the ultrasonic transducers 21 of different input elements 20 are different from each other, and their oscillation frequencies are also different from each other. The larger the diameter of the ultrasonic transducer 21, the lower the oscillation frequency . FIG. 6 shows the frequency bandwidth distribution of different ultrasonic transducers 21 at different diameters. From the time response diagrams shown in FIGS. 5A to 5L, the larger the ultrasonic transducer 21 has the larger the oscillation Amplitude. Therefore, according to the measurement result of the oscillation frequency of each input element 20, it can be determined which input element 20 is operated by the user.
需說明的是,不同輸入元件20之超音波換能器21除了其透明可振盪膜210、透明下電極層211與透明上電極層213的尺寸不同外,其餘結構可為相同,請配合參考圖2,透明上電極層213的直徑b與透明可振盪膜210的直徑a呈正比,舉例來說,當該透明可振盪膜210的直徑a可為92微米,則該透明上電極層213的直徑b可為61微米,在所有的輸入元件20中,透明邊牆212的寬度c可為10微米,透明上電極層213的厚度e可為5微米,透明邊牆212的厚度f可為2微米,透明上電極層213的厚度d與透明下電極層211的厚度g可為0.2微米;前述尺寸僅供參考。It should be noted that, except for the sizes of the transparent oscillating film 210, the transparent lower electrode layer 211, and the transparent upper electrode layer 213, the ultrasonic transducers 21 of different input elements 20 may have the same structure. Please refer to the drawings 2. The diameter b of the transparent upper electrode layer 213 is proportional to the diameter a of the transparent oscillating film 210. For example, when the diameter a of the transparent oscillating film 210 can be 92 microns, the diameter of the transparent upper electrode layer 213 b may be 61 micrometers. In all input elements 20, the width c of the transparent side wall 212 may be 10 micrometers, the thickness e of the transparent upper electrode layer 213 may be 5 micrometers, and the thickness f of the transparent side wall 212 may be 2 micrometers. The thickness d of the transparent upper electrode layer 213 and the thickness g of the transparent lower electrode layer 211 may be 0.2 micrometers; the foregoing dimensions are for reference only.
請參考圖1所示的實施例,前述十二個輸入元件20可排列成4x3的矩陣結構,本創作所結合的電子產品可為可攜式電子產品或穿戴式電子產品,例如圖7是以智慧型手錶50為例,但不以此為限。為方便說明,本創作以矩陣元素(matrix element)的列值與行值表示各輸入元件20的所在位置(row, column),下表列出各輸入元件20所包含之超音波換能器21的透明可振盪膜210的直徑大小與振盪頻率。Please refer to the embodiment shown in FIG. 1. The twelve input elements 20 can be arranged in a 4x3 matrix structure. The electronic products combined in this creation can be portable electronic products or wearable electronic products. For example, FIG. 7 is based on The smart watch 50 is taken as an example, but not limited thereto. For the convenience of explanation, the column and row values of the matrix element represent the position (row, column) of each input element 20. The following table lists the ultrasonic transducers 21 included in each input element 20. The diameter of the transparent oscillating film 210 and the oscillating frequency.
需說明的是,因為該等個輸入元件20的外觀呈矩形且面積彼此相同,且每一個輸入元件20所包含的複數超音波換能器21為陣列排列的構造,所以當一個輸入元件20之複數透明可振盪膜210的直徑越大,其超音波換能器21的數量自然越少。It should be noted that because the appearance of the input elements 20 is rectangular and the areas are the same, and the complex ultrasonic transducers 21 included in each input element 20 are arranged in an array, so when one input element 20 The larger the diameter of the complex transparent oscillating film 210 is, the smaller the number of the ultrasonic transducers 21 is.
綜上所述,本創作可結合於電子產品,例如疊合於電子產品的顯示螢幕上,因為本創作整體為透明而不會遮蔽顯示螢幕,使用者仍可清楚觀看電子產品的顯示螢幕;本創作係根據各輸入元件20之振盪頻率的量測結果判斷出是哪一個輸入元件20被使用者所操作,故可供使用者觀看顯示螢幕時,同時進行非接觸操作,舉例來說,圖7所示的該等輸入元件20可分別為數字鍵或符號鍵,使用者不需實際接觸該智慧型手錶50,而只要將手指放在各輸入元件20的上方,就可進行非接觸撥號或輸入文字。另一方面,本創作也可達成多點非接觸輸入,舉例來說,請配合參考上表,若有兩個外界物體同時位在(4,1)與(4,3)之輸入元件20的上方,請配合參考圖8與圖9,可量測出振盪頻率分別在0.85MHz與0.92MHz,故可據此判斷出位在(4,1)與(4,3)之輸入元件20同時受到使用者的操作,進而達到多點非接觸輸入的功效。In summary, this creation can be combined with electronic products, such as superimposed on the display screen of electronic products, because this creation is transparent as a whole without obscuring the display screen, users can still clearly see the display screen of electronic products; The creation is based on the measurement results of the oscillation frequency of each input element 20 to determine which input element 20 is operated by the user, so that the user can perform non-contact operations at the same time when viewing the display screen. For example, FIG. 7 The input elements 20 shown may be numeric keys or symbol keys, respectively. The user does not need to actually touch the smart watch 50, but only needs to place his finger on each input element 20 to perform non-contact dialing or input. Text. On the other hand, this creation can also achieve multi-point non-contact input. For example, please refer to the table above. If two external objects are located on the input element 20 of (4,1) and (4,3) at the same time, Above, please refer to Fig. 8 and Fig. 9. The oscillation frequency can be measured at 0.85MHz and 0.92MHz, respectively. Therefore, it can be judged that the input components 20 located at (4,1) and (4,3) are simultaneously subjected to The user's operation can achieve the effect of multi-point non-contact input.
10‧‧‧透明基板10‧‧‧ transparent substrate
20‧‧‧輸入元件20‧‧‧Input components
21‧‧‧超音波換能器21‧‧‧ Ultrasonic Transducer
210‧‧‧透明可振盪膜210‧‧‧ transparent oscillating film
211‧‧‧透明下電極層211‧‧‧Transparent lower electrode layer
212‧‧‧透明邊牆212‧‧‧Transparent side wall
213‧‧‧透明上電極層213‧‧‧Transparent upper electrode layer
214‧‧‧空間214‧‧‧space
30‧‧‧間隔30‧‧‧ interval
40‧‧‧外界物體40‧‧‧ Foreign objects
50‧‧‧智慧型手錶50‧‧‧ Smart Watch
圖1:本創作透明超音波換能器輸入裝置之實施例的平面示意圖。 圖2:本創作輸入裝置中各超音波換能器的平面示意圖。 圖3:本創作輸入裝置中各輸入元件的使用狀態示意圖。 圖4A~圖4L:本創作實施例中各輸入元件的頻率響應圖。 圖5A~圖5L:本創作實施例中各輸入元件的時間響應圖。 圖6:本創作實施例中超音波換能器的直徑與振盪頻率的對照圖。 圖7:本創作輸入裝置結合於電子產品的示意圖。 圖8:本創作實施例執行多點輸入的頻率響應圖。 圖9:本創作實施例執行多點輸入的時間響應圖。FIG. 1 is a schematic plan view of an embodiment of an input device for a transparent ultrasonic transducer according to the present invention. Figure 2: A schematic plan view of each ultrasonic transducer in the authoring input device. Fig. 3: Schematic diagram of the use state of each input element in the authoring input device. FIG. 4A to FIG. 4L: Frequency response diagrams of input elements in this creative embodiment. FIG. 5A to FIG. 5L are time response diagrams of input elements in this creative embodiment. Figure 6: A comparison diagram of the diameter and the oscillating frequency of the ultrasonic transducer in this creative embodiment. Figure 7: Schematic diagram of combining the authoring input device with an electronic product. FIG. 8 is a frequency response diagram of a multi-point input performed by the present embodiment. FIG. 9 is a time response diagram of a multi-point input performed by this creative embodiment.
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TWI740658B (en) * | 2020-09-22 | 2021-09-21 | 國立高雄科技大學 | Multi-frequency ultrasonic transducer input device and its manufacturing method |
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US7612483B2 (en) * | 2004-02-27 | 2009-11-03 | Georgia Tech Research Corporation | Harmonic cMUT devices and fabrication methods |
US8767512B2 (en) * | 2012-05-01 | 2014-07-01 | Fujifilm Dimatix, Inc. | Multi-frequency ultra wide bandwidth transducer |
US9707593B2 (en) * | 2013-03-15 | 2017-07-18 | uBeam Inc. | Ultrasonic transducer |
US9604255B2 (en) * | 2014-01-10 | 2017-03-28 | Fujifilm Dimatix, Inc. | Method, apparatus and system for a transferable micromachined piezoelectric transducer array |
US10001552B2 (en) * | 2014-10-15 | 2018-06-19 | Qualcomm Incorporated | Three-port piezoelectric ultrasonic transducer |
CN105892767A (en) * | 2014-12-24 | 2016-08-24 | 南京优触电子科技有限公司 | Ultrasonic wave based interactive facility realization method |
CN106354329A (en) * | 2016-09-19 | 2017-01-25 | 麦克思商务咨询(深圳)有限公司 | Touch display device and touch sensing method |
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