TWM461091U - Light-emitting keyboard - Google Patents
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- TWM461091U TWM461091U TW102202097U TW102202097U TWM461091U TW M461091 U TWM461091 U TW M461091U TW 102202097 U TW102202097 U TW 102202097U TW 102202097 U TW102202097 U TW 102202097U TW M461091 U TWM461091 U TW M461091U
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Description
本創作係關於一種發光鍵盤，具體言之，特別是有關於一種壓力感應元件直接設於鍵帽下方，且壓力感應元件具有槽孔之發光鍵盤。The present invention relates to an illuminated keyboard, in particular to an illuminated keyboard in which a pressure sensing element is directly disposed under the keycap and the pressure sensing element has a slot.
按鍵在過去被廣泛的使用在輸入裝置，舉凡日常生活所接觸的消費級電子產品或是工業界使用的大型加工設備，皆需設有按鍵結構作為輸入裝置，以操作上述之電子產品與加工設備。為因應電子產品薄型化的趨勢，按鍵在設計上更有薄型化的需求。Buttons have been widely used in input devices in the past, and consumer-grade electronic products that are in contact with everyday life or large-scale processing equipment used in industry require a button structure as an input device to operate the above-mentioned electronic products and processing equipment. . In response to the trend of thinning electronic products, buttons are increasingly thinner in design.
為了滿足攜帶式電腦的需求，輕薄型發光鍵盤的研發是勢在必行。為追求輕薄的極致與訊號輸出的正確性，部分鍵盤使用壓力感應元件作為觸發開關，但因壓力感應元件係不透光片狀材質且佈滿按鍵下方，為使按鍵表面能夠發光，導光板必然要設置於壓力感應元件的上方。請參閱第一A圖、第一B圖與第一C圖，係分別顯示習知發光鍵盤之俯視分解圖、仰視分解圖與側視組合圖。習知發光鍵盤10由上而下分別為鍵帽1、導光板2、壓力感應元件3、薄膜電路板4與底板5。鍵帽1在字體的部分係可透光的，其餘部分為不透光；導光板2提供光源以使鍵帽1發光；壓力感應元件3包含一第一基材31與一壓阻材料32，該壓阻材料32係印刷於該第一基材31的下表面，該壓阻材料32可對應使用者的施力大小以改變阻值；薄膜電路板4包含一高導電材料41與一第二基材42， 該高導電材料41係印刷於該第二基材42的上表面，此高導電材料可為銀漿；薄膜電路板4依與壓力感應元件3連結的狀態產生不同數值的訊息；底板5為支撐結構。In order to meet the needs of portable computers, the development of thin and light illuminated keyboards is imperative. In order to pursue the correctness of the light and extreme and the output of the signal, some keyboards use the pressure sensing element as the trigger switch, but because the pressure sensing element is opaque to the sheet material and under the button, in order to enable the surface of the button to emit light, the light guide plate must It is to be placed above the pressure sensing element. Referring to FIG. 1A, FIG. 1B and FIG. 1C, a top view exploded view, a bottom view exploded view and a side view combined view of the conventional illuminated keyboard are respectively displayed. The conventional illuminated keyboard 10 is a keycap 1, a light guide plate 2, a pressure sensing element 3, a thin film circuit board 4 and a bottom plate 5 from top to bottom. The key cap 1 is permeable to light in the portion of the font, and the remaining portion is opaque; the light guide plate 2 provides a light source to illuminate the keycap 1; the pressure sensing element 3 includes a first substrate 31 and a piezoresistive material 32. The piezoresistive material 32 is printed on the lower surface of the first substrate 31, and the piezoresistive material 32 can change the resistance according to the magnitude of the user's force; the thin film circuit board 4 includes a high conductive material 41 and a second Substrate 42, The highly conductive material 41 is printed on the upper surface of the second substrate 42. The highly conductive material may be silver paste; the thin film circuit board 4 generates different values according to the state of being connected with the pressure sensing element 3; the bottom plate 5 is supported structure.
在另一種習知的發光鍵盤20中，鍵帽11的外型可能採用全平面，如第二A圖、第二B圖與第二C圖所示，其分別顯示另一種習知發光鍵盤之俯視分解圖、仰視分解圖與側視組合圖。習知發光鍵盤20與習知發光鍵盤10唯一的不同處在於：鍵帽11係一平整片狀，而鍵帽1並非為平整片狀，至於其它的元件則係相同，此結構優點為降低整體厚度，上述兩種鍵帽1、11係分別應用於不同的鍵盤上。當使用者施力於鍵帽1或11時，手指往下按壓的力量便會被導光板2或12分散，而導致按鍵的靈敏度下降；且在超薄鍵盤的設計上，使用者只能靠鍵帽11上表面的印刷字體判斷按鍵位置，當使用者在打字時，手指有可能因偏移而沒有打在字母的正上方，此時導致鍵盤產生誤動作。例如：當使用者按下鍵帽11上A字母時，若手指偏向右方一些，因鍵帽11下方的導光板12將手指下壓的力量分散，此時電腦螢幕有可能同時顯示「AB」二個字母，故習知發光鍵盤20仍存有缺失而有待改進。In another conventional illuminated keyboard 20, the shape of the keycap 11 may be a full plane, as shown in the second A, second B, and second C, which respectively show another conventional illuminated keyboard. Looking down at the exploded view, the bottom view exploded view and the side view combined view. The only difference between the conventional illuminated keyboard 20 and the conventional illuminated keyboard 10 is that the keycap 11 is a flat sheet, and the keycap 1 is not a flat sheet, and the other components are the same. Thickness, the above two types of keycaps 1, 11 are applied to different keyboards respectively. When the user applies force to the keycap 1 or 11, the force of the finger pressing down is dispersed by the light guide plate 2 or 12, which causes the sensitivity of the button to decrease; and in the design of the ultra-thin keyboard, the user can only rely on The printed font on the upper surface of the keycap 11 determines the position of the button. When the user is typing, the finger may not be directly above the letter due to the offset, which may cause the keyboard to malfunction. For example, when the user presses the A letter on the keycap 11, if the finger is biased to the right, the power of the finger pressing the light guide plate 12 under the keycap 11 is dispersed, and the computer screen may display "AB" at the same time. Two letters, so the conventional illuminated keyboard 20 still has a missing and needs to be improved.
因此，需要發展一種能夠克服上述問題之發光鍵盤，本創作相較於習知發光鍵盤具有較佳的靈敏度，即使手指按壓區域有部分偏移，也會因力量可直接傳達到壓力感應元件，所以誤判機率大幅下降。再者，由於壓力感應元件從習知技術中的一整片材料改為其係具有槽孔或孔洞，而這種結構可以節省壓力感應元件的材料，並且 使其下方的導光板所發射出來的光可穿透到按鍵表面，以達到鍵盤發光的效果。Therefore, there is a need to develop an illuminated keyboard capable of overcoming the above problems. Compared with the conventional illuminated keyboard, the present invention has better sensitivity, and even if the finger pressing area is partially offset, the force can be directly transmitted to the pressure sensing element, so The probability of misjudgment has dropped dramatically. Moreover, since the pressure sensing element is changed from a whole piece of material in the prior art to having a slot or a hole, the structure can save the material of the pressure sensing element, and The light emitted by the light guide plate below it can penetrate the surface of the button to achieve the effect of the keyboard illumination.
本創作提供一種發光鍵盤，包含一底板；一導光板，設於該底板之上，具有一側面、一底面及一出光面，該側面與該底面相交，該底面與該出光面相對；一薄膜電路板，設於該導光板之上，該薄膜電路板係一高導電材料印刷於一第一基材表面；一壓力感應元件，設於該薄膜電路板之上，該壓力感應元件係一壓阻材料印刷於一第二基材表面，該壓阻材料具有至少一槽孔；一鍵帽，設於該壓力感應元件之上；其中，該壓力感應元件之槽孔係至少對應部分該第一基材表面未塗佈有該高導電材料之區域，俾使該導光板發射之光線可穿透該壓力感應元件之槽孔而到達該鍵帽表面，以使該鍵帽發光。The present invention provides an illuminated keyboard, comprising a bottom plate; a light guide plate disposed on the bottom plate, having a side surface, a bottom surface and a light exiting surface, the side surface intersecting the bottom surface, the bottom surface being opposite to the light emitting surface; a film a circuit board disposed on the light guide plate, wherein the film circuit board is printed on a surface of a first substrate; a pressure sensing element is disposed on the film circuit board, and the pressure sensing element is pressed The resistive material is printed on a surface of the second substrate, the piezoresistive material has at least one slot; a key cap is disposed on the pressure sensing element; wherein the slot of the pressure sensing element is at least a corresponding portion of the first The surface of the substrate is not coated with the region of the highly conductive material, so that the light emitted by the light guide plate can penetrate the slot of the pressure sensing element to reach the surface of the keycap, so that the key cap emits light.
較佳地，在該導光板之一側設有一光源，該光源投射光線至該導光板之側面後，該光線再由該導光板之出光面射出。Preferably, a light source is disposed on one side of the light guide plate, and after the light source projects light to the side of the light guide plate, the light is emitted from the light exit surface of the light guide plate.
較佳地，在該底板與該導光板之間設有一反光板，用以反射該導光板之底面所發射出來的光線。Preferably, a reflector is disposed between the bottom plate and the light guide plate for reflecting light emitted from a bottom surface of the light guide plate.
較佳地，該薄膜電路板之高導電材料係為銀漿。Preferably, the highly conductive material of the thin film circuit board is a silver paste.
較佳地，該第一基材表面上之高導電材料係包括指狀結構之一第一電極及一第二電極，該第一電極及一第二電極具有間隙地相互分離且交錯設置於該第一基材表面。Preferably, the highly conductive material on the surface of the first substrate comprises a first electrode and a second electrode of the finger structure, and the first electrode and the second electrode are separated from each other with a gap and are staggered thereon. The surface of the first substrate.
較佳地，該壓阻材料之槽孔係方形槽孔，其具有長邊與短邊，當該壓力感應元件配置於該薄膜電路板上時，該壓阻材料之槽孔的長邊係與該第一電極及第二電極指狀結構之延伸方向平行。Preferably, the slot of the piezoresistive material is a square slot having a long side and a short side. When the pressure sensing element is disposed on the thin film circuit board, the long side of the slot of the piezoresistive material is The extending directions of the first electrode and the second electrode finger structure are parallel.
較佳地，該壓阻材料之槽孔係方形槽孔，其具有長邊與短 邊，當該壓力感應元件配置於該薄膜電路板上時，該壓阻材料之槽孔的長邊係與該第一電極及第二電極指狀結構之延伸方向垂直。Preferably, the slot of the piezoresistive material is a square slot having a long side and a short length When the pressure sensing element is disposed on the thin film circuit board, the long side of the slot of the piezoresistive material is perpendicular to the extending direction of the first electrode and the second electrode finger structure.
1、11‧‧‧鍵帽1, 11‧‧‧ keycaps
2、12‧‧‧導光板2, 12‧‧‧ light guide plate
3、13‧‧‧壓力感應元件3, 13‧‧‧ pressure sensing components
4、14‧‧‧薄膜電路板4, 14‧‧‧ film board
5、15‧‧‧底板5, 15‧‧‧ bottom plate
10、20‧‧‧發光鍵盤10, 20‧‧‧ illuminated keyboard
31、131‧‧‧第一基材31, 131‧‧‧ first substrate
32、132‧‧‧壓阻材料32, 132‧‧‧ Piezoresistive materials
41、141‧‧‧高導電材料41, 141‧‧‧Highly conductive materials
42、142‧‧‧第二基材42, 142‧‧‧ second substrate
21‧‧‧底板21‧‧‧floor
22‧‧‧導光板22‧‧‧Light guide plate
23‧‧‧薄膜電路板23‧‧‧Film board
24‧‧‧壓力感應元件24‧‧‧ Pressure sensing element
25‧‧‧鍵帽25‧‧‧Key Cap
30‧‧‧發光鍵盤30‧‧‧ illuminated keyboard
40‧‧‧微控制器40‧‧‧Microcontroller
50‧‧‧第一電極50‧‧‧First electrode
60‧‧‧第二電極60‧‧‧second electrode
70‧‧‧等效可變電阻70‧‧‧ equivalent variable resistance
221‧‧‧側面221‧‧‧ side
222‧‧‧底面222‧‧‧ bottom
223‧‧‧出光面223‧‧‧Glossy
231‧‧‧高導電材料231‧‧‧Highly conductive materials
232‧‧‧第一基材232‧‧‧First substrate
233‧‧‧區域233‧‧‧Area
241‧‧‧壓阻材料241‧‧‧ Piezoresistive materials
242‧‧‧第二基材242‧‧‧Second substrate
243‧‧‧槽孔243‧‧‧Slots
第一A圖係顯示習知發光鍵盤之俯視分解圖。The first A diagram shows a top exploded view of a conventional illuminated keyboard.
第一B圖係顯示習知發光鍵盤之仰視分解圖。The first B diagram shows a bottom view exploded view of a conventional illuminated keyboard.
第一C圖係顯示習知發光鍵盤之側視組合圖。The first C diagram shows a side view combination of a conventional illuminated keyboard.
第二A圖係顯示另一習知發光鍵盤之俯視分解圖。The second A diagram shows a top exploded view of another conventional illuminated keyboard.
第二B圖係顯示另一習知發光鍵盤之仰視分解圖。The second B diagram shows a bottom view exploded view of another conventional illuminated keyboard.
第二C圖係顯示另一習知發光鍵盤之側視組合圖。The second C diagram shows a side view combination of another conventional illuminated keyboard.
第三A圖係顯示本創作發光鍵盤之俯視分解圖。The third A figure shows a top view exploded view of the present illuminated keyboard.
第三B圖係顯示本創作發光鍵盤之仰視分解圖。The third B-picture shows a bottom view exploded view of the present illuminated keyboard.
第三C圖係顯示本創作發光鍵盤之側視組合圖。The third C picture shows a side view combination view of the present illuminated keyboard.
第三D圖係顯示壓阻材料與薄膜電路板之分解圖。The third D diagram shows an exploded view of the piezoresistive material and the thin film circuit board.
第三E圖係顯示壓阻材料與薄膜電路板之組合圖。The third E diagram shows a combination of a piezoresistive material and a thin film circuit board.
第三F圖係顯示壓阻材料與薄膜電路板之另一實施例之分解圖。The third F diagram shows an exploded view of another embodiment of a piezoresistive material and a thin film circuit board.
第三G圖係顯示壓阻材料與薄膜電路板之另一實施例之組合圖。The third G diagram shows a combination of another embodiment of a piezoresistive material and a thin film circuit board.
第四A圖為按鍵判斷之電路示意圖。The fourth A picture is a circuit diagram of the key judgment.
第四B圖為對按鍵不同施力時的阻抗變化圖。The fourth B diagram is a graph of impedance changes when the buttons are biased differently.
雖然本創作將參閱含有本創作較佳實施例之所附圖式予以充分描述，但在此描述之前應瞭解熟悉本行之人士可修改本文中所描 述之創作，同時獲致本創作之功效。因此，須瞭解以上之描述對熟悉本行技藝之人士而言為一廣泛之揭示，且其內容不在於限制本創作。Although the present invention will be fully described with reference to the drawings containing the preferred embodiments of the present invention, it should be understood that those skilled in the art may modify the description herein. The creation of the description, at the same time, the effect of the creation. Therefore, it is to be understood that the above description is a broad disclosure of those skilled in the art and is not intended to limit the present invention.
請參閱第三A圖、第三B圖與第三C圖，係分別顯示本創作發光鍵盤之俯視分解圖、仰視分解圖與側視組合圖。本創作發光鍵盤30包含：一底板21，為一支撐結構；一導光板22，設於該底板21之上，該導光板22具有一側面221、一底面222及一出光面223，該側面221即為該導光板22之一側面，該出光面223即為該導光板22之頂面，該側面221與該底面222相交，該底面222與該出光面223相對；一薄膜電路板23，設於該導光板22之上，該薄膜電路板23係一高導電材料231印刷於一第一基材(如：塑膠薄膜)232表面上；一壓力感應元件24，設於該薄膜電路板23之上，該壓力感應元件24係一壓阻材料241印刷於一第二基材(如：塑膠薄膜)242表面下，該壓阻材料241具有複數個方形槽孔243；一鍵帽25，設於該壓力感應元件24之上。Please refer to the third A diagram, the third B diagram and the third C diagram, which respectively show the top view exploded view, the bottom view exploded view and the side view combined view of the creation illuminated keyboard. The illuminating keyboard 30 includes a bottom plate 21 as a supporting structure, and a light guiding plate 22 disposed on the bottom plate 21. The light guiding plate 22 has a side surface 221, a bottom surface 222 and a light emitting surface 223. That is, one side of the light guide plate 22, the light exit surface 223 is the top surface of the light guide plate 22, the side surface 221 intersects the bottom surface 222, the bottom surface 222 is opposite to the light exit surface 223; a thin film circuit board 23 is provided On the light guide plate 22, the thin film circuit board 23 is printed on a surface of a first substrate (such as a plastic film) 232; a pressure sensing element 24 is disposed on the film circuit board 23. The pressure sensing element 24 is printed on a surface of a second substrate (eg, plastic film) 242 having a plurality of square slots 243; a key cap 25 is disposed on the surface of the second substrate (eg, plastic film) 242. Above the pressure sensing element 24.
請參閱第三D圖與第三E圖，係分別顯示壓阻材料與薄膜電路板之分解圖與組合圖。為求圖式清晰以方便說明，所以在第三D圖與第三E圖中省略了該第二基材242。該高導電材料231印刷於該第一基材232表面上，該高導電材料231之印刷圖形係形成二個不接觸(或連通)之電極：第一電極50與第二電極60，且該第一電極50及該第二電極60係為指狀結構，並以具有間隙地相互分離且交錯設置於該第一基材232表面，該壓阻材料241至少連結部分該第一電極50及該第二電極60。在此一實施例中，該壓阻材料241的方形槽孔243的長邊係與該第一電極50及第二電極60指狀結構 之延伸方向平行，且該槽孔243係至少對應部分該第一基材232表面未塗佈有該高導電材料231之區域233。於本實施例當中，該槽孔243完全對應該第一電極50及第二電極60指狀結構之間未塗佈有該高導電材料231之區域233，因此得以表現出較佳的透光效率。Please refer to the third D figure and the third E picture, which respectively show the exploded view and the combined view of the piezoresistive material and the thin film circuit board. In order to clarify the drawings for convenience of explanation, the second substrate 242 is omitted in the third D diagram and the third E diagram. The high conductive material 231 is printed on the surface of the first substrate 232, and the printed pattern of the high conductive material 231 forms two non-contact (or connected) electrodes: a first electrode 50 and a second electrode 60, and the first An electrode 50 and the second electrode 60 are finger-like structures, and are spaced apart from each other and staggered on the surface of the first substrate 232. The piezoresistive material 241 at least partially connects the first electrode 50 and the first electrode Two electrodes 60. In this embodiment, the long side of the square slot 243 of the piezoresistive material 241 and the first electrode 50 and the second electrode 60 have a finger structure. The extending direction is parallel, and the slot 243 is at least corresponding to a portion 233 of the surface of the first substrate 232 not coated with the high conductive material 231. In the embodiment, the slot 243 completely corresponds to the region 233 of the first electrode 50 and the second electrode 60 that is not coated with the high conductive material 231, thereby exhibiting better light transmission efficiency. .
請參閱第三F圖與第三G圖，係分別顯示壓阻材料與薄膜電路板之另一實施例之分解圖與組合圖。為求圖式清晰以方便說明，所以在第三F圖與第三G圖中省略了該第二基材242。在此一實施例中，該壓阻材料241仍然是配置於該薄膜電路板23上，該壓阻材料241的方形槽孔243的長邊係與該第一電極50及第二電極60指狀結構之延伸方向垂直，且該槽孔243係至少對應部分該第一基材232表面未塗佈有該高導電材料231之區域233。於本實施例當中，由於該方形槽孔243的設置方式，讓該壓阻材料241得以垂直疊置於該一第一電極50及一第二電極60指狀結構之間，因此使得該第一電極50及第二電極60得以透過該壓阻材料241而獲得較大面積的連結，此配置方式在組裝方面較無對位問題。Please refer to the third F diagram and the third G diagram, which respectively show an exploded view and a combination diagram of another embodiment of the piezoresistive material and the thin film circuit board. The second substrate 242 is omitted in the third F and third G drawings for clarity of illustration. In this embodiment, the piezoresistive material 241 is still disposed on the thin film circuit board 23, and the long side of the square slot 243 of the piezoresistive material 241 and the first electrode 50 and the second electrode 60 are finger-shaped. The extending direction of the structure is vertical, and the slot 243 is at least corresponding to a portion 233 of the surface of the first substrate 232 not coated with the high conductive material 231. In this embodiment, the piezoresistive material 241 is vertically stacked between the first electrode 50 and the second electrode 60, so that the first slot is formed. The electrode 50 and the second electrode 60 are allowed to pass through the piezoresistive material 241 to obtain a large-area connection. This arrangement has no alignment problem in terms of assembly.
本創作發光鍵盤30在該導光板22之一側設有一光源(圖未示)，該光源投射光線至該導光板22之側面221後，該光線再由該導光板22之出光面223向上射出，並且依序經過該薄膜電路板23與該壓力感應元件24，其中由於該壓力感應元件24具有槽孔243，而且該槽孔243係對應該第一基材232表面未塗佈有該高導電材料231之區域233的關係，所以光線會先後穿透過該第一基材232表面未塗佈有該高導電材料231之區域233以及該槽孔243，而到達該鍵帽25表面，以使得該鍵盤可發光，如此一來，使用者便可清楚地看到該鍵帽25上的字體。較佳地，本創作在該底板21與該導 光板22之間增設有一反光板(圖未示)，該反光板可以用來反射該導光板22之底面222所逸散出來的光線，使光線再度向上投射，以增強該發光鍵盤30的發光亮度。光源的配置可照實際需求進行調整，可設置於該導光板22之底面222或該導光板22內部，本創作配置之範圍不在此限。The light-emitting keyboard 30 is provided with a light source (not shown) on one side of the light guide plate 22, and the light source is projected onto the side surface 221 of the light guide plate 22, and the light is emitted upward from the light-emitting surface 223 of the light guide plate 22. And sequentially passing through the thin film circuit board 23 and the pressure sensing element 24, wherein the pressure sensing element 24 has a slot 243, and the slot 243 corresponds to the surface of the first substrate 232 not coated with the high conductivity. The relationship of the region 233 of the material 231, so that the light passes through the region 233 of the first substrate 232 that is not coated with the high conductive material 231 and the slot 243, and reaches the surface of the keycap 25, so that the light The keyboard can be illuminated so that the user can clearly see the font on the keycap 25. Preferably, the creation is on the bottom plate 21 and the guide A light reflecting plate (not shown) is disposed between the light plates 22, and the reflecting plate can be used to reflect the light escaping from the bottom surface 222 of the light guiding plate 22, so that the light is projected upward again to enhance the brightness of the light emitting keyboard 30. . The configuration of the light source can be adjusted according to actual needs, and can be disposed on the bottom surface 222 of the light guide plate 22 or inside the light guide plate 22. The scope of the present configuration is not limited thereto.
請參閱第四A圖與第四B圖，並配合參閱第三A圖，第四A圖為按鍵判斷之電路示意圖，第四B圖為不同施力時的壓力感應元件之阻抗變化圖。鍵盤上的每一個按鍵皆會與一微控制器上個別的I/O做連接，即薄膜電路板23之第一電極50與第二電極60與一微控制器40上個別的I/O做連結。當按鍵被按壓時，壓力感應元件24在不同的施力狀態下，其等效可變電阻70將對應按鍵被按壓的力道而呈現不同的電阻值，由於該等效可變電阻70連結第一電極50及第二電極60，藉由偵測第一電極50及第二電極60間的電壓變化即可推知該等效可變電阻70的電阻值，亦可得知按鍵是否被按壓。當該微控制器40對按鍵作偵測時，該微控制器40會將與該第二電極60連結的I/O降至0V，並且讀取與該第一電極50連結的I/O電壓值V1 ，其中若V1 低於設定值V2 時，該微控制器40便會判定按鍵被壓下；若V2 設定值為1.5V時，當該壓力感應元件24受力超過50公克，根據分壓定理，此時V1 數值將低於1.5V，即代表按鍵被壓下。Please refer to the fourth A picture and the fourth B picture, and refer to the third A picture. The fourth A picture is a circuit diagram of the button judgment, and the fourth B picture is the impedance change diagram of the pressure sensing element when different force is applied. Each button on the keyboard is connected to an individual I/O on a microcontroller, that is, the first electrode 50 and the second electrode 60 of the thin film circuit board 23 and the individual I/O on a microcontroller 40 are made. link. When the button is pressed, the pressure sensing element 24 has different resistance values corresponding to the pressed force of the button under different force applying states, since the equivalent variable resistor 70 is connected to the first The electrode 50 and the second electrode 60 can detect the resistance value of the equivalent variable resistor 70 by detecting a voltage change between the first electrode 50 and the second electrode 60, and can also know whether the button is pressed. When the microcontroller 40 detects the button, the microcontroller 40 reduces the I/O connected to the second electrode 60 to 0V, and reads the I/O voltage connected to the first electrode 50. The value V 1 , wherein if V 1 is lower than the set value V 2 , the microcontroller 40 determines that the button is depressed; if the V 2 setting is 1.5V, when the pressure sensing element 24 is forced to exceed 50 grams According to the partial pressure theorem, the value of V 1 will be lower than 1.5V, which means that the button is pressed.
值得一提的是，本創作的壓阻材料241之槽孔243並不侷限於第三B圖所畫之方形槽孔，亦可以是其他幾何圖形的孔洞，此圖案可根據應用需求或者為了配合該薄膜電路板23上的印刷圖案而作改變，以利該導光板22所發射出來的光線穿透過。It is worth mentioning that the slot 243 of the piezoresistive material 241 of the present invention is not limited to the square slot drawn in the third figure B, and may also be a hole of other geometric figures. The pattern may be adapted according to the application requirements or The printed pattern on the thin film circuit board 23 is changed so that the light emitted from the light guide plate 22 passes through.
本創作發光鍵盤之優點在於：The advantages of this creative illuminated keyboard are:
1.具有較佳的靈敏度。即使手指按壓在鍵帽上的位置有部分偏移，也會因無導光板分散力量，所以誤判機率大幅下降。1. Has better sensitivity. Even if the position where the finger is pressed against the keycap is partially offset, the probability of misjudging is greatly reduced because the light guide plate does not disperse the force.
2.壓力感應元件具有至少一槽孔或孔洞，且其圖案可根據應用需求而作改變，此種具有槽孔或孔洞的結構可以節省材料以降低成本，並且使其下方的導光板所發射出來的光可穿過該槽孔或孔洞而到達按鍵表面，俾使鍵盤發光。2. The pressure sensing element has at least one slot or hole, and the pattern can be changed according to the application requirements. The structure with the slot or the hole can save material to reduce the cost and emit the light guide plate below it. The light can pass through the slot or hole to reach the surface of the button, causing the keyboard to illuminate.
在詳細說明本創作的較佳實施例之後，熟悉該項技術人士可清楚的瞭解，在不脫離下述申請專利範圍與精神下可進行各種變化與改變，且本創作亦不受限於說明書中所舉實施例的實施方式。After a detailed description of the preferred embodiments of the present invention, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the scope and spirit of Embodiments of the illustrated embodiments.
21‧‧‧底板21‧‧‧floor
22‧‧‧導光板22‧‧‧Light guide plate
23‧‧‧薄膜電路板23‧‧‧Film board
24‧‧‧壓力感應元件24‧‧‧ Pressure sensing element
25‧‧‧鍵帽25‧‧‧Key Cap
30‧‧‧發光鍵盤30‧‧‧ illuminated keyboard
221‧‧‧側面221‧‧‧ side
222‧‧‧底面222‧‧‧ bottom
223‧‧‧出光面223‧‧‧Glossy
241‧‧‧壓阻材料241‧‧‧ Piezoresistive materials
242‧‧‧第二基材242‧‧‧Second substrate
243‧‧‧槽孔243‧‧‧Slots
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102202097U TWM461091U (en) | 2013-01-31 | 2013-01-31 | Light-emitting keyboard |
| CN 201320143861 CN203192658U (en) | 2013-01-31 | 2013-03-27 | Luminous keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102202097U TWM461091U (en) | 2013-01-31 | 2013-01-31 | Light-emitting keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM461091U true TWM461091U (en) | 2013-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW102202097U TWM461091U (en) | 2013-01-31 | 2013-01-31 | Light-emitting keyboard |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203192658U (en) |
| TW (1) | TWM461091U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074769A (en) * | 2016-11-18 | 2018-05-25 | 致伸科技股份有限公司 | Keyboard |
| CN110660599B (en) * | 2019-09-27 | 2022-03-11 | 维沃移动通信有限公司 | Key module and electronic equipment |
-
2013
- 2013-01-31 TW TW102202097U patent/TWM461091U/en not_active IP Right Cessation
- 2013-03-27 CN CN 201320143861 patent/CN203192658U/en not_active Expired - Lifetime
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| CN203192658U (en) | 2013-09-11 |
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