TWI777714B - Illuminated touch keyboard and backlight module thereof - Google Patents

Illuminated touch keyboard and backlight module thereof Download PDF

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Publication number
TWI777714B
TWI777714B TW110128767A TW110128767A TWI777714B TW I777714 B TWI777714 B TW I777714B TW 110128767 A TW110128767 A TW 110128767A TW 110128767 A TW110128767 A TW 110128767A TW I777714 B TWI777714 B TW I777714B
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Taiwan
Prior art keywords
light
light guide
touch
guide structure
backlight module
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TW110128767A
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Chinese (zh)
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TW202217889A (en
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游偉彥
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達方電子股份有限公司
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • 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
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/0202—Constructional details or processes of manufacture of the input device
    • G06F3/0219—Special purpose keyboards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/84—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/86—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the casing, e.g. sealed casings or casings reducible in size

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)

Abstract

An illuminated touch keyboard includes a touch-sensing layer, a plurality of keycaps, and a backlight module. The plurality of keycaps are arranged above the touch-sensing layer and can move up and down relative to the touch-sensing layer. A touch area and a non-touch area are defined on the top surfaces of the plurality of keycaps. The projection of the touch area on the touch-sensing layer is the same as a sensing area of the touch sensing layer. The illuminated touch keyboard can selectively provide backlight to the touch area through the backlight module. In practice, the backlight module may include a light-guiding structure and at least one light source, and uses the light-guiding structure to provide backlight to the keycaps corresponding to the touch area. Or, the backlight module may include a plurality of light sources, located under the keycaps corresponding to the touch area. Each light source corresponds to one of the keycaps and provides backlight to the corresponding keycap.

Description

發光觸控鍵盤及其背光模組 Light-emitting touch keyboard and its backlight module

本發明關於一種觸控鍵盤，尤指一種發光觸控鍵盤之背光模組。 The present invention relates to a touch keyboard, in particular to a backlight module of a light-emitting touch keyboard.

一般廣泛使用的人機輸入裝置主要為鍵盤與滑鼠。一般筆記型電腦或平板電腦皆有觸控板或是螢幕可觸控，故可省去滑鼠。桌上型電腦或是智慧電視原則上仍需滑鼠。對此，市面上已有結合觸控功能的鍵盤，以減少外接裝置的數量。又，配備此類鍵盤的筆記型電腦可省去觸控板，增加下蓋配置彈性，例如加大鍵帽，配置朝上擴音的喇叭等。此類鍵盤(或稱觸控鍵盤)能感應使用者於鍵帽上的移動以作為觸控輸入，按鍵本身亦可為使用者按壓以作按鍵輸入。觸控鍵盤在功能切換時(例如在按鍵模式與觸控模式間之切換)，觸控鍵盤本身原則上不會有明顯的指示，.使得使用者需猜測觸控鍵盤目前的模式以能正確使用，造成操作上的不便。此外，觸控鍵盤可能非所有按鍵均會參與觸控感應，故若非觸控鍵盤本身有醒目標示或使用者特別記住，使用者原則上無從知悉觸控感應的範圍，此亦造成操作上的不便。 Generally, the widely used human-computer input devices are mainly keyboards and mice. Generally, notebook computers or tablet computers have touchpads or touchscreens, so the mouse can be omitted. Desktop computers or smart TVs still require a mouse in principle. In this regard, keyboards with touch functions are available on the market to reduce the number of external devices. In addition, a notebook computer equipped with such a keyboard can omit the touchpad, and increase the flexibility of the lower cover configuration, such as increasing the keycaps, and configuring upward-facing speakers. This type of keyboard (or called a touch keyboard) can sense the user's movement on the keycap for touch input, and the keys themselves can also be pressed by the user for key input. When the touch keyboard switches functions (such as switching between key mode and touch mode), the touch keyboard itself will not have obvious indications in principle, so that users need to guess the current mode of the touch keyboard to use it correctly. , causing inconvenience in operation. In addition, not all keys of the touch keyboard may participate in touch sensing. Therefore, unless the touch keyboard itself has a conspicuous indication or the user remembers it, the user cannot know the range of the touch sensing in principle, which also causes operational problems. inconvenient.

鑑於先前技術中的問題，本發明之一目的在於提供一種背光模組，用於一觸控鍵盤中。該背光模組能對該觸控鍵盤的觸控區提供光學指示，以提示使用者觸控區所及的範圍。 In view of the problems in the prior art, one objective of the present invention is to provide a backlight module for use in a touch keyboard. The backlight module can provide an optical indication to the touch area of the touch keyboard to remind the user of the range of the touch area.

根據本發明之一實施例之一背光模組用於一觸控鍵盤中。該觸控鍵盤具有複數個鍵帽並於該複數個鍵帽的頂面上定義一觸控區及一非觸控區。該 背光模組包含一導光結構及至少一光源。該導光結構具有一出光面，該出光面具有一輪廓，與該觸控區的輪廓匹配。該至少一光源鄰近該導光結構設置。其中，該至少一光源發射之光線進入該導光結構並經該導光結構導引以自該出光面射出該導光結構，照射對應該觸控區之複數個鍵帽。藉此，於實作上，當該觸控鍵盤於觸控模式運作時，可控制該至少一光源發光，經由該導光結構照射該觸控區，以提示使用者該觸控區所及的範圍，方便使用者操作。 According to an embodiment of the present invention, a backlight module is used in a touch keyboard. The touch keyboard has a plurality of key caps and defines a touch area and a non-touch area on the top surfaces of the key caps. Should The backlight module includes a light guide structure and at least one light source. The light guide structure has a light emitting surface, and the light emitting surface has an outline matching the outline of the touch area. The at least one light source is disposed adjacent to the light guide structure. The light emitted by the at least one light source enters the light guide structure and is guided by the light guide structure to exit the light guide structure from the light emitting surface to illuminate a plurality of keycaps corresponding to the touch area. Therefore, in practice, when the touch keyboard operates in the touch mode, the at least one light source can be controlled to emit light, and the touch area is illuminated through the light guide structure, so as to remind the user of the touch area. range, which is convenient for users to operate.

根據本發明之另一實施例之一背光模組用於一觸控鍵盤中。該觸控鍵盤具有複數個鍵帽並於該複數個鍵帽的頂面上定義一觸控區及一非觸控區。該背光模組包含複數個第一光源，位於對應該觸控區之複數個鍵帽下方，每一個第一光源對應一個鍵帽。藉此，於實作上，當該觸控鍵盤於觸控模式運作時，可控制該複數個第一光源，向上照射對應的鍵帽，以提示使用者該觸控區所及的範圍，方便使用者操作。此外，該背光模組可更包含一導光結構及至少一第二光源，其中該導光結構具有一出光面，該出光面具有一輪廓，與該非觸控區的輪廓匹配，該至少一第二光源鄰近該導光結構設置，該至少一第二光源發射之光線進入該導光結構並經該導光結構導引以自該第二出光面射出該導光結構，照射對應該非觸控區之複數個鍵帽。 According to another embodiment of the present invention, a backlight module is used in a touch keyboard. The touch keyboard has a plurality of key caps and defines a touch area and a non-touch area on the top surfaces of the key caps. The backlight module includes a plurality of first light sources located under the plurality of keycaps corresponding to the touch area, and each first light source corresponds to a keycap. Therefore, in practice, when the touch keyboard operates in the touch mode, the plurality of first light sources can be controlled to illuminate the corresponding keycaps upward, so as to remind the user of the range of the touch area, which is convenient for the user. User operation. In addition, the backlight module may further include a light guide structure and at least one second light source, wherein the light guide structure has a light emitting surface, the light emitting surface has a contour matching the contour of the non-touch area, and the at least one first light source Two light sources are disposed adjacent to the light guide structure, and the light emitted by the at least one second light source enters the light guide structure and is guided by the light guide structure to exit the light guide structure from the second light emitting surface, illuminating the corresponding non-touch A plurality of keycaps in the area.

本發明之另一目的在於提供一種發光觸控鍵盤，具有如前述之背光模組。因此，發光觸控鍵盤能透過其背光模組的導光結構能以對其觸控區提供光學指示，以提示使用者觸控區所及的範圍。 Another object of the present invention is to provide a light-emitting touch keyboard with the aforementioned backlight module. Therefore, the light-emitting touch keyboard can provide an optical indication to the touch area through the light guide structure of the backlight module, so as to remind the user of the range of the touch area.

根據本發明之一發光觸控鍵盤包含一觸控感應層、複數個鍵帽及如前述之背光模組。該觸控感應層具有一感應區。該複數個鍵帽水平排列於該觸控感應層上方，該鍵帽可相對於該觸控感應層上下移動，該複數個鍵帽的頂面上定義一觸控區，該觸控區於該觸控感應層上之投影與該感應區相同。該背光模組的導光結構設置於該複數個鍵帽下方。同樣的，於實作上，當該發光觸控 鍵盤於觸控模式運作時，可透過該背光模組照射該觸控區，以提示使用者該觸控區所及的範圍，方便使用者操作。 A light-emitting touch keyboard according to the present invention includes a touch sensing layer, a plurality of keycaps and the aforementioned backlight module. The touch sensing layer has a sensing area. The keycaps are horizontally arranged above the touch sensing layer, the keycaps can move up and down relative to the touch sensing layer, a touch area is defined on the top surface of the keycaps, and the touch area is located on the touch sensing layer. The projection on the touch sensing layer is the same as the sensing area. The light guide structure of the backlight module is arranged below the plurality of keycaps. Similarly, in practice, when the light-emitting touch When the keyboard operates in the touch mode, the touch area can be irradiated through the backlight module to remind the user of the range of the touch area, which is convenient for the user to operate.

關於本發明之優點與精神可以藉由以下的發明詳述及所附圖式得到進一步的瞭解。 The advantages and spirit of the present invention can be further understood from the following detailed description of the invention and the accompanying drawings.

1,4:發光觸控鍵盤 1,4: Illuminated touch keyboard

10:裝置殼體 10: Device housing

102:上殼 102: Upper shell

104:下殼 104: Lower shell

12:鍵帽 12: Keycaps

12a:頂面 12a: Top surface

12b,12b',12b":按鍵投影區 12b, 12b', 12b": key projection area

12c:鍵隙佈局投影 12c: Keygap Layout Projection

13a:觸控區 13a: Touch area

13b:非觸控區 13b: Non-touch area

14:底板 14: Bottom plate

16:升降機構 16: Lifting mechanism

17:彈性復位件 17: Elastic reset piece

18:薄膜電路板 18: Thin film circuit board

18a:開關 18a: switch

20:觸控感應層 20: Touch sensing layer

20a:感應區 20a: Sensing area

202:第一電極串列 202: The first electrode string

202a:第一電極 202a: first electrode

204:第二電極串列 204: Second electrode string

204a:第二電極 204a: second electrode

206:穿孔 206: Perforation

206a:穿孔佈局 206a: Perforation Layout

22,22',42:背光模組 22,22',42: Backlight module

222,422:導光結構 222,422: Light guide structure

422a:出光面 422a: light-emitting surface

2222:第一導光片 2222: The first light guide

2222a:第一出光面 2222a: The first light-emitting surface

2222b:輪廓 2222b: Contour

2222c:容置孔 2222c: accommodating hole

2224:第二導光片 2224: The second light guide

2224a:第二出光面 2224a: The second light-emitting surface

2224b:輪廓 2224b: Contour

223:軟性電路板 223: Flexible circuit board

224,424:第一光源 224,424: First light source

226:第二光源 226: Second light source

228:第三光源 228: Third Light Source

3:手指 3: Fingers

Dv:垂直方向 Dv: vertical direction

Dh:水平方向 Dh: horizontal direction

第1圖為根據一第一實施例之一發光觸控鍵盤之示意圖。 FIG. 1 is a schematic diagram of a light-emitting touch keyboard according to a first embodiment.

第2圖為第1圖中發光觸控鍵盤之功能方塊圖。 Figure 2 is a functional block diagram of the light-emitting touch keyboard in Figure 1.

第3圖為第1圖中發光觸控鍵盤部分構件之***圖。 FIG. 3 is an exploded view of some components of the light-emitting touch keyboard in FIG. 1 .

第4圖為第1圖中發光觸控鍵盤沿線X-X之剖面圖。 FIG. 4 is a cross-sectional view of the light-emitting touch keyboard taken along the line X-X in FIG. 1 .

第5圖為第3圖中觸控感應層電極佈局之示意圖。 FIG. 5 is a schematic diagram of the electrode layout of the touch sensing layer in FIG. 3 .

第6圖為第5圖中圓圈A之放大圖。 FIG. 6 is an enlarged view of the circle A in FIG. 5 .

第7圖為第3圖中背光模組之***圖。 Figure 7 is an exploded view of the backlight module in Figure 3.

第8圖為第3圖中背光模組之俯視圖。 FIG. 8 is a top view of the backlight module in FIG. 3 .

第9圖為第8圖中背光模組根據一變化例之俯視圖。 FIG. 9 is a top view of the backlight module of FIG. 8 according to a modification.

第10圖為根據一第二實施例之一發光觸控鍵盤部分構件之***圖。 FIG. 10 is an exploded view of some components of a light-emitting touch keyboard according to a second embodiment.

第11圖為第10圖中背光模組之俯視圖。 FIG. 11 is a top view of the backlight module in FIG. 10 .

請參閱第1至4圖。根據一第一實施例之一發光觸控鍵盤1包含一裝置殼體10、複數個鍵帽12(於第3圖中僅擇一標示)、一底板14、複數個升降機構16(僅繪示於第4圖中以簡化圖式)、一薄膜電路板18、一觸控感應層20、一背光模組22及一控制器24。裝置殼體10包含一上殼102及一下殼104，其他構件容置其間。該複數個鍵帽12設置於底板14之上且露出於上殼102。該複數個升降機構16(例如但不限於剪刀腳支架)連接至該複數個鍵帽12與底板14之間。薄膜電路板18 及觸控感應層20疊置於底板14上。鍵帽12能經由對應的升降機構16相對於底板14、薄膜電路板18及觸控感應層20上下移動(即沿垂直方向Dv(以雙頭箭頭表示於圖中)移動)；被按壓的鍵帽12可經由設置於其下方對應的彈性復位件17(僅繪示於第4圖中以簡化圖式；例如但不限於橡膠圓突)向上回到原位。薄膜電路板18(以單一結構板件繪示以簡化圖式)對應該複數個鍵帽12具有複數個按鍵開關18a(於第3圖中以帶影線圓圈表示)。控制器24(例如以電路板模組實作，其包含一印刷電路板及設置於印刷電路板上之處理/控制晶片、連接介面及所需電子元件等)與薄膜電路板18、觸控感應層20及背光模組22電連接。鍵帽12可被按壓以觸發對應的按鍵開關18a，以作為按鍵輸入。觸控感應層20能感應手指3(僅繪示於第4圖中)在鍵帽12頂面12a上的觸碰操作(例如移動)，以作為觸碰輸入。背光模組22具有一導光結構222，設置於該複數個鍵帽12下方。背光模組22利用導光結構222以提供該複數個鍵帽12背光。 See Figures 1 to 4. A light-emitting touch keyboard 1 according to a first embodiment includes a device casing 10 , a plurality of keycaps 12 (only one is selected in the third figure), a bottom plate 14 , and a plurality of lifting mechanisms 16 (only shown in the figure) 4 , a thin film circuit board 18 , a touch sensing layer 20 , a backlight module 22 and a controller 24 . The device casing 10 includes an upper casing 102 and a lower casing 104, and other components are accommodated therebetween. The plurality of keycaps 12 are disposed on the bottom plate 14 and exposed to the upper shell 102 . The plurality of lifting mechanisms 16 (such as but not limited to scissor foot brackets) are connected between the plurality of keycaps 12 and the bottom plate 14 . Thin Film Circuit Board 18 And the touch sensing layer 20 is stacked on the bottom plate 14 . The keycap 12 can move up and down relative to the bottom plate 14, the thin film circuit board 18 and the touch sensing layer 20 via the corresponding lifting mechanism 16 (ie, move along the vertical direction Dv (indicated by a double-headed arrow in the figure)); the pressed key The cap 12 can be returned to its original position upwardly through the corresponding elastic restoring member 17 (only shown in FIG. 4 to simplify the drawing; for example, but not limited to, a rubber round protrusion) disposed below the cap 12 . The thin-film circuit board 18 (shown as a single structural board to simplify the drawing) has a plurality of key switches 18 a (represented by hatched circles in FIG. 3 ) corresponding to the plurality of keycaps 12 . The controller 24 (for example, implemented as a circuit board module, which includes a printed circuit board and a processing/control chip disposed on the printed circuit board, a connection interface and required electronic components, etc.) and the thin film circuit board 18, touch sensing The layer 20 and the backlight module 22 are electrically connected. The keycap 12 can be pressed to trigger the corresponding key switch 18a as a key input. The touch sensing layer 20 can sense the touch operation (eg, movement) of the finger 3 (only shown in FIG. 4 ) on the top surface 12 a of the keycap 12 as a touch input. The backlight module 22 has a light guide structure 222 disposed under the plurality of keycaps 12 . The backlight module 22 utilizes the light guide structure 222 to provide backlight for the plurality of keycaps 12 .

請亦參閱第5圖，其為觸控感應層20電極佈局之示意圖，鍵帽12於觸控感應層20上之按鍵投影區12b以虛線繪示。於第一實施例中，觸控感應層20包含複數個第一電極串列202(每一串列包含複數個第一電極202a)及複數個第二電極串列204(每一串列包含複數個第二電極204a)，交錯排列以使電極202a、204a均勻分布。該複數個鍵帽12水平排列(沿水平方向Dh)於觸控感應層20上方，觸控感應層20透過該複數個第一電極串列202及該複數個第二電極串列204感應手指3在鍵帽12頂面12a上的觸碰操作。為簡化圖式，觸控感應層20以單一結構板件表示。於實作上，觸控感應層20可由三層結構實施；其中，第一電極串列202及第二電極串列204分別設置於上、下基板上，兩者之間以間隔層隔離第一電極串列202及第二電極串列204。但實作上不以此為限。例如，第一電極串列202及第二電極串列204可設置於同一基板之同一表面上，交錯處(即電極連接線)可絕緣結構，以避免第一電極202a間的連接線與第二電極204a間的連接線接觸。又例 如，第一電極串列202及第二電極串列204可設置於同一基板之不同表面上，此基板本身即可提供第一電極串列202與第二電極串列204間之絕緣。 Please also refer to FIG. 5 , which is a schematic diagram of the electrode layout of the touch sensing layer 20 , and the key projection area 12 b of the keycap 12 on the touch sensing layer 20 is shown with dotted lines. In the first embodiment, the touch sensing layer 20 includes a plurality of first electrode series 202 (each series includes a plurality of first electrodes 202a) and a plurality of second electrode series 204 (each series includes a plurality of first electrodes 202a) two second electrodes 204a), staggered to make the electrodes 202a, 204a evenly distributed. The plurality of keycaps 12 are arranged horizontally (along the horizontal direction Dh) above the touch sensing layer 20 , and the touch sensing layer 20 senses the finger 3 through the plurality of first electrode series 202 and the plurality of second electrode series 204 A touch operation on the top surface 12a of the keycap 12. To simplify the drawing, the touch sensing layer 20 is represented by a single structural plate. In practice, the touch sensing layer 20 can be implemented by a three-layer structure; wherein, the first electrode series 202 and the second electrode series 204 are respectively disposed on the upper and lower substrates, and the first electrode series 202 and the second electrode series 204 are respectively disposed on the upper and lower substrates, and the first The electrode string 202 and the second electrode string 204 . But in practice it is not limited to this. For example, the first electrode series 202 and the second electrode series 204 can be disposed on the same surface of the same substrate, and the staggered places (ie, the electrode connecting lines) can be insulated to avoid the connecting lines between the first electrodes 202a and the second electrode 202a. The connecting lines between the electrodes 204a are in contact. Another example For example, the first electrode series 202 and the second electrode series 204 can be disposed on different surfaces of the same substrate, and the substrate itself can provide insulation between the first electrode series 202 and the second electrode series 204 .

於第一實施例中，觸控感應層20的感應區20a(以粗鏈線表示其範圍於第3、5圖中；即該複數個第一電極串列202及該複數個第二電極串列204之分布區域)並未涵蓋所有鍵帽12的按鍵投影區12b；換言之，觸控感應層20不是對所有鍵帽12的頂面12a皆提供觸控感應。因此，發光觸控鍵盤1於該複數個鍵帽12的頂面12a上可定義出一觸控區13a(如第1圖中粗鏈線所包圍之區域)及一非觸控區13b(如第1圖中細鏈線所包圍並扣除觸控區13a之區域)。觸控區13a於觸控感應層20上之投影與感應區20a相同(亦即於第5圖中，粗鏈線所包圍之區域亦相當於觸控區13a之投影)。原則上，觸控感應層20僅感應手指3在觸控區13a內的觸碰操作。又，於第一實施例中，位於觸控區13a內之鍵帽12的頂面12a大致共平面，便於手指3滑動。 In the first embodiment, the sensing area 20a of the touch sensing layer 20 (indicated by a thick chain line in Figures 3 and 5; that is, the plurality of first electrode strings 202 and the plurality of second electrode strings The distribution area of the row 204 ) does not cover all the key projection areas 12 b of the key caps 12 ; in other words, the touch sensing layer 20 does not provide touch sensing to the top surfaces 12 a of all the key caps 12 . Therefore, the light-emitting touch keyboard 1 can define a touch area 13a (such as the area surrounded by the thick chain line in the first figure) and a non-touch area 13b (such as In Fig. 1, the area surrounded by the thin chain line and deducted from the touch area 13a). The projection of the touch area 13a on the touch sensing layer 20 is the same as that of the sensing area 20a (that is, in FIG. 5, the area surrounded by the thick chain line also corresponds to the projection of the touch area 13a). In principle, the touch sensing layer 20 only senses the touch operation of the finger 3 in the touch area 13a. In addition, in the first embodiment, the top surfaces 12a of the keycaps 12 located in the touch area 13a are substantially coplanar, which facilitates the sliding of the finger 3 .

請參閱第5、6圖。於第一實施例中，於觸控區13a內的每一個鍵帽12尺寸相同。於感應區20a內的每一個按鍵投影區12b涵蓋相同的鍵面電極圖案。於感應區20a內，對應每一個按鍵投影區12b定義一鍵隙佈局投影12c(以帶影線之環狀區域表示於第6圖中)，使得鍵隙佈局投影12c圍繞對應的按鍵投影區12b。每一個鍵隙佈局投影12c涵蓋相同的鍵隙電極圖案。此結構配置可提高觸控感應數據的規律性，減少觸控軌跡的斷點、提高觸控感應的靈敏度，也能簡化觸控電極的設計複雜度。此外，於第一實施例中，觸控感應層20對應每一個升降機構16具有複數個穿孔206(為簡化圖式，僅顯示於第6圖中)，以供升降機構16與底板14連接。穿孔206位於鍵帽12正下方，會影響鍵面電極圖案。按鍵投影區12b的鍵面電極圖案上具有一穿孔佈局206a(或謂其由對應按鍵投影區12b的穿孔206定義出)。每一個按鍵投影區12b的鍵面電極圖案的穿孔佈局206a相同，此亦有助於使每一個按鍵投影區12b保持涵蓋相同的鍵面電極圖案。另外，薄膜電路 板18位於觸控感應層20與底板14之間，可抑制薄膜電路板18電路對觸控感應層20感應的影響。薄膜電路板18亦對應每一個升降機構16具有複數個穿孔(未繪示於圖中，以簡化圖式)，以供升降機構16與底板14連接。 See Figures 5 and 6. In the first embodiment, each keycap 12 in the touch area 13a has the same size. Each key projection area 12b in the sensing area 20a covers the same key surface electrode pattern. In the sensing area 20a, a key gap layout projection 12c is defined corresponding to each key projection area 12b (represented by a hatched annular area in FIG. 6), so that the key gap layout projection 12c surrounds the corresponding key projection area 12b . Each keygap layout projection 12c covers the same keygap electrode pattern. This structural configuration can improve the regularity of the touch sensing data, reduce the breakpoints of the touch track, improve the sensitivity of the touch sensing, and also simplify the design complexity of the touch electrodes. In addition, in the first embodiment, the touch sensing layer 20 has a plurality of through holes 206 corresponding to each lifting mechanism 16 (only shown in FIG. 6 for simplification) for connecting the lifting mechanism 16 to the bottom plate 14 . The perforation 206 is located just below the keycap 12 and affects the pattern of the electrodes on the key surface. The key surface electrode pattern of the key projection area 12b has a perforation pattern 206a (or it is defined by the perforations 206 corresponding to the key projection area 12b). The perforation layout 206a of the key surface electrode pattern of each key projection area 12b is the same, which also helps to keep each key projection area 12b covering the same key surface electrode pattern. In addition, thin film circuits The board 18 is located between the touch sensing layer 20 and the bottom plate 14 , which can suppress the influence of the circuit of the thin film circuit board 18 on the sensing of the touch sensing layer 20 . The thin film circuit board 18 also has a plurality of through holes corresponding to each lifting mechanism 16 (not shown in the figure to simplify the drawing) for connecting the lifting mechanism 16 to the bottom plate 14 .

請參閱第1至3、7、8圖；其中，鍵帽12於導光結構222上之按鍵投影區12b'以虛線繪示於第8圖中。於第一實施例中，背光模組22還包含複數個第一光源224及複數個第二光源226，與控制器24電連接(例如經由軟性電路板223)。導光結構222疊置於觸控感應層20下方並包含一第一導光片2222及一第二導光片2224，該複數個第一光源224及複數個第二光源226分別第一導光片2222及第二導光片2224設置。第一導光片2222具有一第一出光面2222a，第一出光面2222a具有一輪廓2222b，與觸控區13a(如第1圖中粗鏈線所包圍之區域)的輪廓匹配。第二導光片2224具有一第二出光面2224a，第二出光面2224a具有一輪廓2224b，與非觸控區13b(如第1圖中細鏈線所包圍並扣除觸控區13a之區域)的輪廓匹配；從另一方而言，非觸控區13b圍繞觸控區13a而呈環狀，第二出光面2224a亦圍繞第一出光面2222a而呈環狀。藉此，控制器24能控制該複數個第一光源224發射光線，進入第一導光片2222並經第一導光片2222導引以自第一出光面2222a射出第一導光片2222，照射對應觸控區13a之複數個鍵帽12(即提供其背光)；同理，控制器24亦能控制該複數個第二光源226發射光線，進入第二導光片2224並經第二導光片2224導引以自第二出光面2224a射出第二導光片2224，照射對應非觸控區13b之複數個鍵帽12(即提供其背光)。另外，導光結構222亦對應每一個升降機構16具有複數個穿孔(未繪示於圖中，以簡化圖式)，以供升降機構16與底板14連接。 Please refer to FIGS. 1 to 3, 7, and 8; wherein, the key projection area 12b' of the keycap 12 on the light guide structure 222 is shown in FIG. 8 with dotted lines. In the first embodiment, the backlight module 22 further includes a plurality of first light sources 224 and a plurality of second light sources 226, which are electrically connected to the controller 24 (eg, via a flexible circuit board 223). The light guide structure 222 is stacked under the touch sensing layer 20 and includes a first light guide sheet 2222 and a second light guide sheet 2224. The plurality of first light sources 224 and the plurality of second light sources 226 are respectively first light guides The sheet 2222 and the second light guide sheet 2224 are provided. The first light guide sheet 2222 has a first light emitting surface 2222a, and the first light emitting surface 2222a has an outline 2222b, which matches the outline of the touch area 13a (such as the area surrounded by the thick chain line in the first figure). The second light guide sheet 2224 has a second light emitting surface 2224a, the second light emitting surface 2224a has an outline 2224b, and the non-touch area 13b (such as the area surrounded by the thin chain line in the first figure and deducting the touch area 13a) On the other hand, the non-touch area 13b is annular around the touch area 13a, and the second light emitting surface 2224a is also annular around the first light emitting surface 2222a. Thereby, the controller 24 can control the plurality of first light sources 224 to emit light, enter the first light guide sheet 2222 and be guided by the first light guide sheet 2222 to exit the first light guide sheet 2222 from the first light emitting surface 2222a, irradiates the plurality of keycaps 12 corresponding to the touch area 13a (ie, provides their backlight); similarly, the controller 24 can also control the plurality of second light sources 226 to emit light, enter the second light guide sheet 2224 and pass through the second light guide The light sheet 2224 is guided to emit the second light guide sheet 2224 from the second light emitting surface 2224a to illuminate the plurality of keycaps 12 corresponding to the non-touch area 13b (ie, provide the backlight thereof). In addition, the light guide structure 222 also has a plurality of through holes corresponding to each lifting mechanism 16 (not shown in the figure, to simplify the drawing) for connecting the lifting mechanism 16 to the bottom plate 14 .

因此，於實際應用上，控制器24可配合發光觸控鍵盤1的運作模式以選擇性地控制該複數個第一光源224及該複數個第二光源226發射光線，以提供該複數個鍵帽12不同的背光組合。例如，當發光觸控鍵盤1處於觸控模式時，控 制器24可控制第一光源224發射光線且關閉第二光源226，使得第一光源224對觸控區13a提供之背光較為明顯。又例如，當發光觸控鍵盤1處於按鍵模式時，控制器24可控制第一光源224及第二光源226均發射光線，使得觸控區13a及非觸控區13b均能獲得背光；其中，第一光源224及第二光源226可發射同色光線。 Therefore, in practical applications, the controller 24 can selectively control the plurality of first light sources 224 and the plurality of second light sources 226 to emit light according to the operation mode of the light-emitting touch keyboard 1 to provide the plurality of keycaps 12 different backlight combinations. For example, when the light-emitting touch keyboard 1 is in the touch mode, the control The controller 24 can control the first light source 224 to emit light and turn off the second light source 226, so that the backlight provided by the first light source 224 to the touch area 13a is more obvious. For another example, when the light-emitting touch keyboard 1 is in the key-press mode, the controller 24 can control both the first light source 224 and the second light source 226 to emit light, so that both the touch area 13a and the non-touch area 13b can obtain backlight; wherein, The first light source 224 and the second light source 226 can emit light of the same color.

此外，於第一實施例中，第一出光面2222a與觸控區13a的輪廓匹配是透過第一出光面2222a的輪廓2222b與觸控區13a的輪廓相同而實現，第二出光面2224a與非觸控區13b的輪廓匹配是透過第二出光面2224a的輪廓2224b與非觸控區13b的輪廓相同而實現；但實作上不以此為限。原則上，第一出光面2222a與觸控區13a的輪廓相似且大小相近，使得經由第一出光面2222a提供之背光能對觸控區13a的範圍提供光學指示，便可算是第一出光面2222a與觸控區13a於輪廓上匹配；第二出光面2224a與非觸控區13b的輪廓匹配亦同。另外，因非觸控區13b圍繞觸控區13a，故第二出光面2224a亦相對於垂直方向Dv圍繞第一出光面2222a，亦即第二導光片2224相對於垂直方向Dv圍繞第一導光片2222。 In addition, in the first embodiment, the contour matching of the first light emitting surface 2222a and the touch area 13a is achieved by the contour 2222b of the first light emitting surface 2222a being the same as the touch area 13a, and the second light emitting surface 2224a is the same as the non-contact area 13a. The contour matching of the touch area 13b is realized by the contour 2224b of the second light emitting surface 2224a being the same as the contour of the non-touch area 13b; however, it is not limited in practice. In principle, the first light emitting surface 2222a is similar to the touch area 13a in outline and size, so that the backlight provided by the first light emitting surface 2222a can provide an optical indication of the range of the touch area 13a, which can be regarded as the first light emitting surface 2222a. The contour matches the touch area 13a; the contour matching of the second light emitting surface 2224a and the non-touch area 13b is also the same. In addition, since the non-touch area 13b surrounds the touch area 13a, the second light emitting surface 2224a also surrounds the first light emitting surface 2222a with respect to the vertical direction Dv, that is, the second light guide sheet 2224 surrounds the first light guide with respect to the vertical direction Dv Light sheet 2222.

此外，於第一實施例中，第一導光片2222及第二導光片2224水平相鄰，使得第一導光片2222及第二導光片2224可大致上拼合在一起。但實作上均不以此為限。此外，於第一實施例中，第一導光片2222與第二導光片2224間實作上可存有一介質(未標示於圖中)；此介質即相當於位於第一出光面2222a的輪廓2222b處。此介質(例如但不限於空氣)的折射率大於第一導光片2222及第二導光片2224之折射率，可抑制第一導光片2222及第二導光片2224內之光線相互傳遞，進而使得於觸控模式時，第一光源224經由第一導光片2222對觸控區13a提供之背光更為明顯。又，於實作上，該介質亦可為不透光材質，以阻止第一導光片2222及第二導光片2224內之光線相互傳遞，更能使第一光源224經由第一導光片2222對觸控區13a提供之背光更為明顯。 In addition, in the first embodiment, the first light guide sheet 2222 and the second light guide sheet 2224 are horizontally adjacent to each other, so that the first light guide sheet 2222 and the second light guide sheet 2224 can be substantially assembled together. But in practice it is not limited to this. In addition, in the first embodiment, a medium (not shown in the figure) may exist between the first light guide sheet 2222 and the second light guide sheet 2224; this medium is equivalent to the first light emitting surface 2222a. at outline 2222b. The refractive index of the medium (such as but not limited to air) is greater than the refractive index of the first light guide sheet 2222 and the second light guide sheet 2224, which can inhibit the mutual transmission of light in the first light guide sheet 2222 and the second light guide sheet 2224 , so that in the touch mode, the backlight provided by the first light source 224 to the touch area 13a through the first light guide sheet 2222 is more obvious. In addition, in practice, the medium can also be an opaque material to prevent the light in the first light guide sheet 2222 and the second light guide sheet 2224 from being transmitted to each other, so that the first light source 224 can pass through the first light guide sheet. The backlight provided by the sheet 2222 to the touch area 13a is more obvious.

此外，於實作上，透過設計每一個第一光源224的設置位置及朝向， 可提高經由第一出光面2222a提供背光的均勻度。如第7、8圖所示，於第一實施例中，該複數個第一光源224位於第一出光面2222a之同一側且以不同方向發射光線(以細線箭頭表示於圖中)。其中，該複數個第一光源224的設置不以每一個第一光源224均以不同的方向設置為限。第一導光片2222對應該複數個第一光源224形成容置孔2222c，以容置對應的第一光源224，使得第一光源224位於第一導光片2222的內側。於實作上，第一光源224亦可設置於第一導光片2222的邊緣處(即位於第一導光片2222與第二導光片2224之間)。第7、8圖所呈現的第一光源224的設置位置及朝向僅為示例，第一光源224的具體設置可依實際產品設計而定，不另贅述。前述說明亦適用於第二光源226的設置位置及朝向，亦不另贅述。 In addition, in practice, by designing the location and orientation of each first light source 224, The uniformity of the backlight provided through the first light emitting surface 2222a can be improved. As shown in FIGS. 7 and 8, in the first embodiment, the plurality of first light sources 224 are located on the same side of the first light emitting surface 2222a and emit light in different directions (represented by thin arrows in the figure). The arrangement of the plurality of first light sources 224 is not limited to that each first light source 224 is arranged in a different direction. The first light guide sheet 2222 forms accommodating holes 2222 c corresponding to the plurality of first light sources 224 to accommodate the corresponding first light sources 224 , so that the first light sources 224 are located inside the first light guide sheet 2222 . In practice, the first light source 224 can also be disposed at the edge of the first light guide sheet 2222 (ie, between the first light guide sheet 2222 and the second light guide sheet 2224 ). The arrangement position and orientation of the first light source 224 shown in FIGS. 7 and 8 are only examples, and the specific arrangement of the first light source 224 can be determined according to the actual product design, and will not be described in detail. The foregoing description is also applicable to the disposition position and orientation of the second light source 226, and will not be repeated.

另外，於實作上，背光模組22可針對第一導光片2222更包含能發射其他色光之光源，進而增加背光模組22提供該複數個鍵帽12更多種的背光組合。如第9圖所示，於一變化例中，背光模組22'相對於第8圖之背光模組22更包含複數個第三光源228(以帶影線方框表示於圖中)。為便於說明，該複數個第三光源228與該複數個第一光源224一對一相鄰設置於對應的容置孔2222c中；亦即該複數個第三光源228亦鄰近第一導光片2222設置，第三光源228發射之光線進入第一導光片2222並經第一導光片2222導引以自第一出光面2222a射出第一導光片2222，照射對應觸控區13a之複數個鍵帽12。第一光源224及第三光源228發射不同色光線。例如，第一光源224及第二光源226為藍光發光二極體(light-emitting diode，LED)，第三光源228為紅光LED。藉此，當第一光源224及第三光源228同時開啟時，藍光和紅光於第一導光片2222內可混合成紫光並自第一出光面2222a射出第一導光片2222。於實作上，例如，當發光觸控鍵盤1處於觸控模式時，此紫光可作為觸控區13a(參考第4圖)之背光；當發光觸控鍵盤1處於觸控模式時，可控制第一光源224及第二光源226發光並關閉第三光源228，使得觸控區13a及非觸控區13b均能獲得藍色背光。 In addition, in practice, the backlight module 22 may further include a light source capable of emitting light of other colors for the first light guide sheet 2222 , so that the backlight module 22 is added to provide more backlight combinations of the plurality of keycaps 12 . As shown in FIG. 9 , in a modified example, the backlight module 22 ′ further includes a plurality of third light sources 228 (represented by hatched boxes in the figure) compared to the backlight module 22 in FIG. 8 . For convenience of description, the plurality of third light sources 228 and the plurality of first light sources 224 are disposed in the corresponding accommodating holes 2222c one-to-one adjacent to each other; that is, the plurality of third light sources 228 are also adjacent to the first light guide sheet 2222 is provided, the light emitted by the third light source 228 enters the first light guide sheet 2222 and is guided by the first light guide sheet 2222 to emit the first light guide sheet 2222 from the first light emitting surface 2222a, irradiating the plural numbers corresponding to the touch area 13a 12 keycaps. The first light source 224 and the third light source 228 emit light of different colors. For example, the first light source 224 and the second light source 226 are blue light-emitting diodes (LEDs), and the third light source 228 is a red LED. Therefore, when the first light source 224 and the third light source 228 are turned on at the same time, the blue light and the red light can be mixed into the violet light in the first light guide sheet 2222 and emitted from the first light emitting surface 2222a to the first light guide sheet 2222 . In practice, for example, when the light-emitting touch keyboard 1 is in the touch mode, the purple light can be used as the backlight of the touch area 13a (refer to FIG. 4 ); when the light-emitting touch keyboard 1 is in the touch mode, it can control the The first light source 224 and the second light source 226 emit light and the third light source 228 is turned off, so that both the touch area 13a and the non-touch area 13b can obtain blue backlight.

另外，請回到第4、7、8圖。於第一實施例中，導光結構222由兩個共平面設置的導光片(即第一導光片2222及第二導光片2224)形成，但實作上不以此為限。例如，導光結構222改由單一導光片實作，其中於此導光片上對應觸控區13a形成深壓痕(例如深度大於導光片厚度的三分之二)，此深壓痕將此單一導光片大致上分成兩個結構相連的導光部分。此深壓痕的位置即相當於導光結構222的第一導光片2222的輪廓(即相當於輪廓2222b)，使得此單一導光片於深壓痕內側的表面即相當於第一出光面2222a，且於深壓痕內側的表面即相當於第二出光面2224a。其中，雖然這兩個導光部分間結構上相連(即於該深壓痕下方)，使得在這兩導光部分內的光線會部分相互進入，但是外溢至另一導光部分的光線強度原則上遠小於在原導光部分的光線強度，使得經由第一出光面2222a提供之背光強度明顯大於由第二出光面2224a提供之背光強度，此仍能有效地對觸控區13a提供光學指示。 Also, please go back to Figures 4, 7, and 8. In the first embodiment, the light guide structure 222 is formed by two coplanar light guide sheets (ie, the first light guide sheet 2222 and the second light guide sheet 2224 ), but it is not limited in practice. For example, the light guide structure 222 is implemented by a single light guide sheet, wherein a deep indentation is formed on the light guide sheet corresponding to the touch area 13a (for example, the depth is greater than two-thirds of the thickness of the light guide sheet). The single light guide sheet is roughly divided into two structurally connected light guide portions. The position of the deep indentation corresponds to the contour of the first light guide sheet 2222 of the light guide structure 222 (ie, corresponds to the contour 2222b ), so that the surface of the single light guide sheet inside the deep indentation corresponds to the first light emitting surface 2222a, and the surface inside the deep indentation corresponds to the second light emitting surface 2224a. Wherein, although the two light-guiding parts are structurally connected (that is, under the deep indentation), so that the light in the two light-guiding parts will partially enter each other, but the principle of light intensity that spills out to the other light-guiding part The light intensity is much smaller than the light intensity in the original light guide portion, so that the intensity of the backlight provided by the first light emitting surface 2222a is significantly greater than that provided by the second light emitting surface 2224a, which can still effectively provide optical indications to the touch area 13a.

另外，於發光觸控鍵盤1之背光模組22中，第一光源224及第二光源226均以LED實作，邏輯上可視為點光源，故背光模組22使用了多個第一光源224及第二光源226以便於產生均勻的背光(搭配導光結構222)。於實作上，第一光源224及第二光源226的設置數量可依光源型式而定，且不以相同光源型式為限。此外，於發光觸控鍵盤1之背光模組22中，用於對觸控區13a提供光學指示之背光是由第一光源224搭配(導光結構222的)第一導光片2222而形成，但實作上不以此為限。 In addition, in the backlight module 22 of the light-emitting touch keyboard 1, the first light source 224 and the second light source 226 are both implemented with LEDs, which can be logically regarded as point light sources, so the backlight module 22 uses a plurality of first light sources 224 and the second light source 226 in order to generate a uniform backlight (with the light guide structure 222). In practice, the number of the first light source 224 and the second light source 226 can be determined according to the light source type, and is not limited to the same light source type. In addition, in the backlight module 22 of the light-emitting touch keyboard 1, the backlight for providing optical indication to the touch area 13a is formed by the first light source 224 and the first light guide sheet 2222 (of the light guide structure 222). But in practice it is not limited to this.

請參閱第10、11圖；其中，於第11圖中，鍵帽12之按鍵投影區12b"以虛線繪示。根據一第一實施例之一發光觸控鍵盤4與發光觸控鍵盤1結構相似，並沿用發光觸控鍵盤1之元件符號。於後文中，關於發光觸控鍵盤4之說明，請亦參閱前文發光觸控鍵盤1各構件及其變化例之相關說明及圖式，不另贅述。發光觸控鍵盤4與發光觸控鍵盤1主要差異在於發光觸控鍵盤4的背光模組42的 導光結構422係用於對位於非觸控區13b內之鍵帽12提供背光，背光模組42的複數個第一光源424則不經導光結構422而提供位於觸控區13a內之鍵帽12提供背光。於背光模組42中，導光結構422的出光面422a與非觸控區13b輪廓匹配。該複數個第二光源226發射之光線進入導光結構422並經導光結構422導引以自出光面422a射出導光結構422，照射對應非觸控區13b之複數個鍵帽12(即提供其背光)。該複數個第一光源424位於對應觸控區13a之複數個鍵帽12正下方，導光結構422圍繞該複數個第一光源424。每一個第一光源424對應一個鍵帽12，第一光源424向上發光以直接對對應的鍵帽12提供背光。此結構配置便於調整對應觸控區13a之背光，例如用以提高背光均勻度、產生特定背光效果、與對應非觸控區13b的背光一致等。藉此，與發光觸控鍵盤1相當，發光觸控鍵盤4亦能配合運作模式以選擇性地控制該複數個第一光源424及該複數個第二光源226發射光線，以提供該複數個鍵帽12不同的背光組合。 Please refer to Figures 10 and 11; among them, in Figure 11, the key projection area 12b" of the keycap 12 is shown with dotted lines. According to a first embodiment, a structure of a light-emitting touch keyboard 4 and a light-emitting touch keyboard 1 Similar, the component symbols of the light-emitting touch keyboard 1 are used. In the following, for the description of the light-emitting touch keyboard 4, please also refer to the relevant descriptions and drawings of the components of the light-emitting touch keyboard 1 and their modifications, unless otherwise stated. The main difference between the light-emitting touch keyboard 4 and the light-emitting touch keyboard 1 is that the backlight module 42 of the light-emitting touch keyboard 4 The light guide structure 422 is used to provide backlight for the keycaps 12 located in the non-touch area 13b, and the plurality of first light sources 424 of the backlight module 42 provide the keys located in the touch area 13a without the light guide structure 422 Cap 12 provides backlighting. In the backlight module 42, the light emitting surface 422a of the light guide structure 422 matches the contour of the non-touch area 13b. The light emitted by the plurality of second light sources 226 enters the light guide structure 422 and is guided by the light guide structure 422 to exit the light guide structure 422 from the light emitting surface 422a to illuminate the plurality of keycaps 12 corresponding to the non-touch area 13b (ie, providing its backlight). The plurality of first light sources 424 are located directly under the plurality of keycaps 12 corresponding to the touch area 13 a, and the light guide structure 422 surrounds the plurality of first light sources 424 . Each of the first light sources 424 corresponds to one keycap 12 , and the first light sources 424 emit light upward to directly provide backlight to the corresponding keycap 12 . This configuration is convenient to adjust the backlight corresponding to the touch area 13a, for example, to improve the uniformity of the backlight, generate a specific backlight effect, and be consistent with the backlight corresponding to the non-touch area 13b. Therefore, comparable to the light-emitting touch keyboard 1, the light-emitting touch keyboard 4 can also selectively control the plurality of first light sources 424 and the plurality of second light sources 226 to emit light according to the operation mode, so as to provide the plurality of keys Cap 12 different backlight combinations.

以上所述僅為本發明之較佳實施例，凡依本發明申請專利範圍所做之均等變化與修飾，皆應屬本發明之涵蓋範圍。 The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

1:發光觸控鍵盤 1: Illuminated touch keyboard

10:裝置殼體 10: Device housing

102:上殼 102: Upper shell

104:下殼 104: Lower shell

12:鍵帽 12: Keycaps

12a:頂面 12a: Top surface

13a:觸控區 13a: Touch area

13b:非觸控區 13b: Non-touch area

14:底板 14: Bottom plate

18:薄膜電路板 18: Thin film circuit board

18a:開關 18a: switch

20:觸控感應層 20: Touch sensing layer

20a:感應區 20a: Sensing area

22:背光模組 22: Backlight module

222:導光結構 222: Light guide structure

2222:第一導光片 2222: The first light guide

2222a:第一出光面 2222a: The first light-emitting surface

2224:第二導光片 2224: The second light guide

2224a:第二出光面 2224a: The second light-emitting surface

224:第一光源 224: First Light Source

226:第二光源 226: Second light source

Claims (13)

一種背光模組，用於一觸控鍵盤中，該觸控鍵盤具有複數個鍵帽並於該複數個鍵帽的頂面上定義一觸控區及一非觸控區，該背光模組包含：一導光結構，具有一第一出光面，該第一出光面具有一輪廓，與該觸控區的輪廓匹配；以及至少一第一光源，鄰近該導光結構設置；其中，該至少一第一光源發射之光線進入該導光結構並經該導光結構導引以自該第一出光面射出該導光結構，照射對應該觸控區之複數個鍵帽。 A backlight module is used in a touch keyboard, the touch keyboard has a plurality of key caps and defines a touch area and a non-touch area on the top surface of the plurality of key caps, the backlight module includes : a light guide structure having a first light emitting surface, the first light emitting surface has an outline matching the outline of the touch area; and at least one first light source disposed adjacent to the light guide structure; wherein the at least one The light emitted by the first light source enters the light guide structure and is guided by the light guide structure to exit the light guide structure from the first light emitting surface to illuminate a plurality of keycaps corresponding to the touch area. 如請求項1所述之背光模組，更包含至少一第二光源，鄰近該導光結構設置，其中該導光結構具有一第二出光面，與該非觸控區的輪廓匹配，該至少一第二光源發射之光線進入該導光結構並經該導光結構導引以自該第二出光面射出該導光結構，照射對應該非觸控區之複數個鍵帽。 The backlight module of claim 1, further comprising at least one second light source disposed adjacent to the light guide structure, wherein the light guide structure has a second light emitting surface matching the contour of the non-touch area, the at least one light source The light emitted by the second light source enters the light guide structure and is guided by the light guide structure to exit the light guide structure from the second light emitting surface to illuminate a plurality of keycaps corresponding to the non-touch area. 如請求項2所述之背光模組，其中該導光結構包含一第一導光片及與該第一導光片水平相鄰之一第二導光片，該第一導光片與該第二導光片間具有一介質，該介質之折射率大於該第一導光片及該第二導光片之折射率，該第一導光片形成該第一出光面，該第二導光片形成該第二出光面。 The backlight module of claim 2, wherein the light guide structure comprises a first light guide sheet and a second light guide sheet horizontally adjacent to the first light guide sheet, the first light guide sheet and the There is a medium between the second light guide sheets. The refractive index of the medium is greater than the refractive index of the first light guide sheet and the second light guide sheet. The first light guide sheet forms the first light emitting surface, and the second light guide sheet The light sheet forms the second light emitting surface. 如請求項3所述之背光模組，其中該第二導光片圍繞該第一導光片。 The backlight module of claim 3, wherein the second light guide sheet surrounds the first light guide sheet. 如請求項2所述之背光模組，更包含至少一第三光源，鄰近該導光結構設置，其中該至少一第三光源發射之光線進入該導光結構並經該導光結構導引以自該第一出光面射出該導光結構，照射對應該觸控區之複數個鍵帽，該第一光源及該第三光源發射不同色的光線。 The backlight module of claim 2, further comprising at least one third light source disposed adjacent to the light guide structure, wherein the light emitted by the at least one third light source enters the light guide structure and is guided by the light guide structure to The light guide structure is emitted from the first light emitting surface to illuminate a plurality of keycaps corresponding to the touch area, and the first light source and the third light source emit light of different colors. 如請求項2所述之背光模組，其中該第一光源與該第二光源發射相同色的光線。 The backlight module of claim 2, wherein the first light source and the second light source emit light of the same color. 如請求項1所述之背光模組，包含複數個第一光源，該複數個第一 光源位於該第一出光面之同一側且以不同方向發射光線。 The backlight module of claim 1, comprising a plurality of first light sources, the plurality of first light sources The light sources are located on the same side of the first light emitting surface and emit light in different directions. 一種背光模組，用於一觸控鍵盤中，該觸控鍵盤具有複數個鍵帽並於該複數個鍵帽的頂面上定義一觸控區及一非觸控區，該背光模組包含：複數個第一光源，位於對應該觸控區之複數個鍵帽正下方，每一個第一光源對應一個鍵帽。 A backlight module is used in a touch keyboard, the touch keyboard has a plurality of key caps and a touch area and a non-touch area are defined on the top surface of the plurality of key caps, the backlight module includes : a plurality of first light sources, located directly below the plurality of keycaps corresponding to the touch area, each first light source corresponds to a keycap. 如請求項8所述之背光模組，更包含一導光結構及至少一第二光源，其中該導光結構具有一出光面，與該非觸控區匹配，該至少一第二光源鄰近該導光結構設置，該至少一第二光源發射之光線進入該導光結構並經該導光結構導引以自該出光面射出該導光結構，照射對應該非觸控區之複數個鍵帽。 The backlight module of claim 8, further comprising a light guide structure and at least one second light source, wherein the light guide structure has a light emitting surface matching the non-touch area, and the at least one second light source is adjacent to the guide The light structure is arranged, and the light emitted by the at least one second light source enters the light guide structure and is guided by the light guide structure to exit the light guide structure from the light emitting surface to illuminate a plurality of keycaps corresponding to the non-touch area. 如請求項9所述之背光模組，其中該導光結構圍繞該複數個第一光源。 The backlight module of claim 9, wherein the light guide structure surrounds the plurality of first light sources. 一種發光觸控鍵盤，包含：一觸控感應層，具有一感應區；複數個鍵帽，水平排列於該觸控感應層上方，該鍵帽可相對於該觸控感應層上下移動，該複數個鍵帽的頂面上定義一觸控區，該觸控區於該觸控感應層上之投影與該感應區相同；以及如請求項1至7、9及10其中之任一請求項所述之背光模組，設置於該複數個鍵帽下方。 A light-emitting touch keyboard, comprising: a touch sensing layer with a sensing area; a plurality of key caps arranged horizontally above the touch sensing layer, the key caps can move up and down relative to the touch sensing layer, the plurality of key caps A touch area is defined on the top surface of each keycap, and the projection of the touch area on the touch sensing layer is the same as that of the sensing area; The above-mentioned backlight module is arranged below the plurality of keycaps. 如請求項11述之發光觸控鍵盤，其中該感應區係光可穿過，該導光結構疊置於該觸控感應層下方。 The light-emitting touch keyboard as claimed in claim 11, wherein the sensing area can pass light, and the light guide structure is stacked under the touch sensing layer. 如請求項11述之發光觸控鍵盤，更包含一控制器，與該第一光源電連接，其中當該發光觸控鍵盤處於觸控模式時，該控制器控制該第一光源發射光線。 The light-emitting touch keyboard of claim 11 further comprises a controller electrically connected to the first light source, wherein when the light-emitting touch keyboard is in the touch mode, the controller controls the first light source to emit light.
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