TWI777468B - Keybaord composite electrode module and luminous touch keyboard therewith - Google Patents

Abstract

A luminous touch keyboard includes a baseplate, a plurality of keycaps, a plurality of supporting structures connected between the baseplate and the keycaps, and a keyboard composite electrode module disposed between the baseplate and the keycaps and configured to sense a non-pressing movement over the keycaps and to provide light emitting through the keycaps. The keycap can move up and down relative to the baseplate and the keyboard composite electrode module through the corresponding supporting structure. The keyboard composite electrode module includes a light source circuit and a plurality of electrode matrices arranged along a first direction and a second direction. Two of the electrode matrices which are adjacent in the second direction are mis-aligned. The light source circuit includes a plurality of light sources disposed one by one in the plurality of electrode matrices, and each light source is disposed on a same relative position in the corresponding electrode matrix.

Description

Keyboard composite electrode module and light-emitting touch keyboard

The present invention relates to a light-emitting touch keyboard, in particular to a light-emitting touch keyboard with a keyboard composite electrode module, which integrates a touch sensing circuit and a light source circuit into a composite electrode module.

The keyboard is mainly used for inputting text signals into the computer system. After years of evolution and integration, the key layout on the keyboard has gradually formed an international standard specification.

On the other hand, the touch panel provides users with different operation options, and inputs touch signals to the computer system in a single-point or multi-touch manner. At present, the touch function has been successfully integrated into the screen. However, the attempt to integrate the touch function on the physical keyboard without using the touchpad has always failed to achieve satisfactory results in operation, function and structure, especially when the touch function is intended to be integrated into the illuminated keyboard. more difficult.

One object of the present invention is to provide a keyboard composite electrode module, which is integrated into the keyboard structure to sense the non-pressing movement of objects on the keys and provide light to be emitted from the keycaps, so as to facilitate the operation of the keyboard in a dim environment.

In one embodiment, the present invention provides a keyboard composite electrode module, which includes an electrode carrying structure, a light source circuit and a touch sensing circuit. The light source circuit is arranged on the electrode carrying structure and includes a complex a number of light sources; the touch sensing circuit is disposed on the electrode carrying structure, and includes a plurality of first electrode series and a plurality of second electrode series, wherein the plurality of first electrode series extend along the first direction and are arranged at intervals in the second direction, The plurality of second electrode series extend along the second direction and are arranged at intervals in the first direction to be staggered with the plurality of first electrode series, wherein a plurality of key projection areas are defined on the keyboard composite electrode module, and each key projection area is The same key surface electrode pattern is covered, and the key surface electrode pattern includes one of a plurality of light sources.

In one embodiment, the plurality of first electrode series and the plurality of second electrode series are alternately arranged to form a plurality of electrode arrays arranged along the first direction and the second direction, and the two adjacent electrode arrays in the second direction are not aligned , each electrode matrix corresponds to a key projection area, and in each key projection area, the corresponding positions of the light sources in the electrode matrix are the same.

In one embodiment, a key space layout projection is defined corresponding to each key projection area on the complex electrode matrix, the key space layout projection surrounds the corresponding key projection area, and each key space layout projection covers the same key space electrode pattern.

In one embodiment, the light source circuit includes a plurality of light source lines for electrically connecting the plurality of light sources; the plurality of light source lines extend along the first direction and are arranged at intervals in the second direction, so that the plurality of light source lines and the plurality of first electrodes are arranged in series at intervals and Interleaved with a plurality of second electrodes in series.

In one embodiment, the electrode carrying structure includes a first substrate, wherein the light source circuit, the plurality of first electrode series and the plurality of second electrode series are arranged on the same surface of the first substrate, and the plurality of second electrode series and the light source are arranged on the same surface. Insulation layers are disposed between the second electrode series and the light source circuit, and between the second electrode series and the first electrode series, where the circuit and the plurality of first electrode series are alternately stacked.

In one embodiment, the light source circuit or the first electrode series are located between the second electrode series and the first substrate where the second electrode series overlap the light source circuit and the first electrode series.

In one embodiment, the key surface electrode pattern further includes a first trigger conductive portion and a second trigger conductive portion, wherein the first trigger conductive portion and the second trigger conductive portion are respectively formed from a first electrode series and a second electrode. The first triggering conducting portion and the second triggering conducting portion are formed extending in the series, and the second triggering conducting portion is connected through the conducting connection portion.

In one embodiment, the electrode carrying structure further includes a second substrate disposed relative to the first substrate and a spacer layer sandwiched between the first substrate and the second substrate, wherein the key surface electrode pattern includes a conductive connection portion, and the conductive connection portion It is formed on the second substrate, and the spacer layer has openings; the corresponding openings of the first triggering conductive part and the second triggering conductive part and the conducting connecting part are relatively spaced apart; the keyboard composite electrode module corresponds to the first triggering conductive part and the second triggering conductive part. A portion can be pressed, so that the conductive connection portion is electrically connected to the first trigger conductive portion and the second trigger conductive portion through the opening.

In one embodiment, the conductive connection portion includes a contact surface, the first trigger conductive portion and the second trigger conductive portion respectively include at least one contact line, and the first trigger conductive portion and the second trigger conductive portion are connected to the contact lines through the contact surface. contact and are electrically connected to each other.

In one embodiment, the electrode carrying structure includes a first substrate, a second substrate disposed relative to the first substrate, and a spacer layer sandwiched between the first substrate and the second substrate, and a plurality of first electrode series and light source circuits are formed. On the first upper surface of the first substrate, a plurality of second electrode series are formed on the second lower surface of the second substrate.

In one embodiment, the key surface electrode pattern further includes a first trigger conductive portion and a second trigger conductive portion, wherein the first trigger conductive portion and the second trigger conductive portion are respectively formed from a first electrode series and a The second electrode series is extended and formed, the spacer layer has an opening, the first triggering conductive part and the second triggering conductive part are arranged at a relative interval corresponding to the opening, and the keyboard composite electrode module corresponds to the first triggering conductive part and the second triggering conductive part The part of the can be pressed, so that the first trigger conductive part and the second trigger conductive part approach each other through the opening.

In one embodiment, the first trigger conductive portion and the second trigger conductive portion respectively include at least one contact line, and the first trigger conductive portion and the second trigger conductive portion are electrically connected to each other through the contact lines.

In one embodiment, the contact line is one of a straight line, an arc shape, a ring shape, a rectangle shape and a zigzag shape or any combination thereof.

In one embodiment, the electrode carrying structure includes a substrate, the light source circuit and the touch sensing circuit are respectively disposed on opposite surfaces of the substrate, and the light provided by the plurality of light sources is not provided with the plurality of first electrode series and the plurality of second electrodes on the substrate. Transmission at the tandem.

In one embodiment, the first electrode series includes a plurality of first main line segments and a plurality of second branch line segments, the plurality of first main line segments extend along the first direction and are linearly connected to each other, and the plurality of second branch line segments are arranged at intervals in the first direction and protrude along the second direction from the plurality of first main line segments.

In one embodiment, the second electrode series includes a plurality of second main line segments and a plurality of second branch line segments, the plurality of second main line segments extend along the second direction and are arranged at intervals and are alternately arranged in two rows in the first direction, and the plurality of second line segments are arranged alternately in the first direction. The branch line segments are spaced along the second direction and connect adjacent second main line segments in the two columns along the first direction.

In one embodiment, the key surface electrode patterns have the same perforation pattern.

In another embodiment, the present invention provides a keyboard composite electrode module, comprising a plurality of electrode arrays and a light source circuit, wherein the plurality of electrode arrays are continuously arranged along the first direction and the second direction. Two electrode matrices adjacent in the second direction are shifted away from each other in the first direction without being aligned in the second direction, and at least two electrode matrices that are not aligned in the second direction are the same as each other, and each electrode matrix includes a complex number of The first electrode series sections and the plurality of second electrode series sections, wherein the plurality of second electrode series sections and the first electrode series sections are alternately arranged with each other; the light source circuit includes a plurality of light source lines and a plurality of light source lines arranged on the plurality of light source lines The light sources and the plurality of light sources are arranged one-to-one in the complex electrode matrix.

In one embodiment, the relative positions of each light source in the corresponding electrode matrix are the same.

In yet another embodiment, the present invention provides a keyboard composite electrode module, which includes a complex electrode matrix and a light source circuit, the complex electrode matrix corresponds to the complex key projection area one-to-one, and the complex electrode matrix is arranged along the first direction and the second direction. , at least two electrode matrices that are not aligned in the second direction are the same as each other, the electrode matrix includes a plurality of electrodes arranged at the same electrode spacing interval, wherein the size of the electrodes in the second direction is the key center distance of these key projection areas, The electrode spacing and the function of the number of electrode rows and columns covered by the bond center distance, and the light source circuit includes a plurality of light sources, which are arranged one-to-one in the complex electrode matrix, and the relative positions of each light source in the electrode matrix are the same.

In one embodiment, the at least two electrode matrices that are not aligned in the second direction have the same perforation layout, and the perforation layout includes at least one perforation in the electrode matrix.

In yet another embodiment, the present invention provides a light-emitting touch keyboard, which includes a base plate, a plurality of keycaps disposed above the base plate, the keyboard composite electrode module and a plurality of supporting mechanisms as described above, wherein the keyboard composite electrode module is disposed on the Between the base plate and the plurality of key caps, it is used to sense the non-pressing movement of the object on the plurality of key caps and provide light to shoot out from the plurality of key caps; the plurality of supporting mechanisms are correspondingly connected between the base plate and the plurality of key caps, so that the key caps can be The composite electrode module moves up and down relative to the bottom plate and the keyboard composite electrode module through the corresponding support mechanism.

In one embodiment, the keyboard composite electrode module further includes a switch circuit, wherein the switch circuit includes a plurality of key switches corresponding to the plurality of key caps respectively, and each of the plurality of key switches is formed by a first electrode series and a second electrode series, The trigger signal is generated by conducting the conducting connection part.

In one embodiment, the light-emitting touch keyboard of the present invention further includes a plurality of elastic reset elements disposed between the bottom plate and the plurality of keycaps, wherein the conductive connection portions are disposed on the corresponding elastic reset elements.

In one embodiment, the keyboard composite electrode module includes a conductive connection portion, and the conductive connection portion is disposed opposite to the corresponding key switch. When the key cap is pressed, the key cap drives the keyboard composite electrode module to deform, so that the key switch is turned on by the key cap. Connection triggers.

Compared with the prior art, the light-emitting touch keyboard and the keyboard composite electrode module of the present invention integrate the touch sensing circuit and the light source circuit into the same electrode module, which can not only improve the operability and functionality of the keyboard, but also improve the performance of the keyboard. Conducive to the thinning of the keyboard. Furthermore, even when the light source circuit is integrated in the light-emitting touch keyboard and the keyboard composite electrode module of the present invention, each key projection area can cover the same electrode pattern including the light source, so the complexity of electrode layout design can be reduced. and improve the regularity of the electrode sensing performance, thereby improving the touch operation accuracy of the touch keyboard. In addition, the touch sensing electrodes are connected in series (used to sense the non-pressing movement on the keys to generate touch signals), trigger electrodes (conducted through mechanical displacement of the keys to generate text signals) and light source circuits (used to generate touch signals) The single-layer integrated design formed on the keyboard composite electrode module further effectively reduces the thickness of the circuit layer of the light-emitting touch keyboard, which is conducive to the thin design of the light-emitting touch keyboard.

10: Touch keyboard

12: Button structure

120: touch area

121: The first row of key combinations

122: Second row key combination

123: The third row of button combinations

124: Fourth row button combination

125: Key gap layout

13: Keycaps

14: Keyboard composite electrode module

140: touch area projection

141, 141’, 141”: perforated

141a, 141b, 141c: Perforation layout

142': first substrate

142a: first upper surface

143: Key Gap Layout Projection

144: Insulation layer

144': Spacer Layer

144a: Upper surface

144b: lower surface

144c: Opening

144d: Through hole

146': Second substrate

146a: Second upper surface

146b: Second lower surface

146c: Conductive connection part

146d: Through hole

15: Bottom plate

16: Elastic reset piece

17: Support Structure

18, 18a~c: key projection area

19: Conduction connection part

20: The first electrode string

20’: The first main line segment

20”: The first branch line section

20a~i: the first electrode string segment

202: The first trigger conductive part

22: The second electrode series

22’: Second main line segment

22": Second branch line section

22a~l: the second electrode series segment

222: the second trigger conductive part

24: The first electrode

24a: first electrode light-transmitting part

26: Second electrode

26a: second electrode light-transmitting part

30: Light source circuit

31: Light source

32: Light source circuit

40: Touch Sensing Circuit

50: switch circuit

52: key switch

AL, AW: Arrangement spacing

DL, DW: Clearance

L: first direction

M, Ma~c: electrode matrix

Mf1~3: Key surface electrode pattern

Mg1, Mg2: bond gap electrode pattern

O: object

PL, PW: key center distance

SL, SW, w: Dimensions

W: second direction

FIG. 1A is an exploded schematic view of some components of the light-emitting touch keyboard according to the first embodiment of the present invention.

1B is a partial cross-sectional view of the light-emitting touch keyboard according to the first embodiment of the present invention.

FIG. 2A is a schematic diagram of a partial electrode layout of the keyboard composite electrode module in FIGS. 1A and 1B .

FIG. 2B is an enlarged view of electrode patterns corresponding to three adjacent key projection areas in FIG. 2A .

FIG. 3A is an exploded schematic view of the electrode pattern in FIG. 2B being split into a plurality of first electrode series.

FIG. 3B is an exploded schematic view of the electrode pattern in FIG. 2B being split into a plurality of second electrode series.

FIG. 3C is an exploded schematic view of the electrode pattern in FIG. 2B being split into a light source circuit.

FIG. 3D is an exploded schematic view of the electrode pattern in FIG. 2B being split into a light source circuit and a plurality of first electrode strings.

FIG. 4 is a schematic diagram of the corresponding relationship between the electrode layout corresponding to the single button of FIG. 1B and the conductive connection portion.

5A is a partial schematic view of the keyboard composite electrode module stacked on the substrate according to the first embodiment of the present invention.

FIG. 5B is a partial cross-sectional schematic view of FIG. 5A , illustrating an exemplary stacked structure of a light source circuit, a first electrode series, and a second electrode series on a substrate.

6 is a schematic diagram of a partial electrode layout of the keyboard composite electrode module according to the second embodiment of the present invention.

7A to 7C are exploded schematic views of the keyboard composite electrode module of FIG. 6 , wherein FIG. 7A shows that the touch sensing circuit and the light source circuit are disposed on the first substrate of the electrode carrying structure, and FIG. 7B shows the spacer layer of the electrode carrying structure, And FIG. 7C shows that the conductive connection portion is disposed on the second substrate of the electrode carrying structure.

FIG. 7D is a schematic diagram of the corresponding relationship between the electrode layout corresponding to the single button of FIG. 6 and the conductive connection part.

8 is a schematic diagram of a partial electrode layout of a keyboard composite electrode module according to a third embodiment of the present invention.

9A to 9C are exploded schematic views of the keyboard composite electrode module of FIG. 8 , wherein FIG. 9A shows the first electrode series of the touch sensing circuit and the light source circuit disposed on the first substrate of the electrode carrying structure, and FIG. 9B shows the electrodes The spacer layer between the carrier structure, and FIG. 9C shows that the second electrode series of the touch sensing circuit is disposed on the second substrate of the electrode carrier structure.

FIG. 10 is a schematic diagram of the electrode layout corresponding to the single button of FIG. 8 .

FIG. 11A is a schematic diagram of the partial electrode layout of the keyboard composite electrode module according to the fourth embodiment of the present invention.

FIG. 11B is an enlarged view of electrode patterns corresponding to three adjacent key projection areas in FIG. 11A .

FIG. 12A is an exploded schematic view of the electrode pattern in FIG. 11B being split into a plurality of first electrode strings.

FIG. 12B is an exploded schematic view of the electrode pattern in FIG. 11B being split into a plurality of second electrode strings.

FIG. 12C is an exploded schematic view of the electrode pattern in FIG. 11B being split into a light source circuit.

FIG. 12D is an exploded schematic view of the electrode pattern in FIG. 11B being split into a light source circuit and a plurality of first electrode strings.

FIG. 13 is a schematic diagram of the corresponding relationship between the electrode layout corresponding to the single button of FIG. 11B and the conductive connection portion.

The present invention relates to how to reliably integrate a touch sensing circuit, a light source circuit and a keyboard to provide a luminous touch keyboard capable of sensing the non-pressing movement of objects on multiple keycaps and providing light emitted from the multiple keycaps. Ideally, for keyboards of equal size and neatly arranged in a matrix, a pair of trigger electrodes is usually disposed on the membrane circuit board corresponding to each key press trigger. If the touch sensing circuit layer (with the X-Y axis electrodes arranged in a neat matrix) is superimposed between the key members, then when the key is pressed, the key can press the pair of trigger electrodes through, for example, a rubber elastic body to contact and conduct, thereby generating Text Signal (Signal for inputting letters/numbers/symbols) to execute the corresponding key input function. When the user is not pressing When the button is pressed, the touch sensing circuit layer can sense the capacitive sensing value generated by the user's non-pressing movement (such as single-point or multi-point contact/click/continuous movement) on the button surface, thereby generating a touch. control signal to execute the corresponding touch function. When the touch keyboard needs to have a light-emitting function, a light source circuit can be used to provide a light source corresponding to each key to form a light-emitting touch keyboard. Therefore, it is beneficial to integrate the touch sensing circuit, the light source circuit and the thin film circuit board structure. The thin design of the light-emitting touch keyboard.

However, for keyboards and keys that are not arranged in a neat matrix of equal size, the international standard layout adopts a dislocation arrangement design; for example, more than 40 text keys account for the largest number, that is, double keys (square keys, also known as square keys) or alphanumeric keys. Alphanumeric keys are usually keys that can input English letters/numbers and some symbols. If the touch-sensing circuit layers arranged in a neat matrix are directly superimposed on the keyboard structure, the X-Y-axis electrode patterns corresponding to each character key projection range are different in principle. In other words, text buttons with the same size but staggered arrangement will correspond to different X-Y axis electrode matrix patterns. Since the text key distribution area is the area with the highest frequency of typing on the keyboard, it is also the area with the most opportunity to switch the touch function. Different X-Y axis electrode matrix patterns will make the touch event group of each text key area appear different. The capacitive sensing data population.

In addition to the limitations of different key sizes and key misalignment arrangements, there are other factors that lead to poor touch sensing performance of the keyboard, and the present invention finds out several problems. One is that the height of the touch object (such as a finger or a stylus in FIG. 1B ) is different when it moves within the touch area (covering multiple buttons and the gaps between them, such as the touch area 120 in FIG. 1A ), and the touch object It is different from the medium between the touch electrode layers; for example, in FIG. 1B , when the object O moves from the key surface to the key gap, the object O tends to slightly fall into the key gap (such as the key gap layout 125 ), so that the object O is on the key surface and the key gap respectively. There will be height differences and medium differences between the key gap and the touch electrodes (such as the key gap electrode patterns Mg1, Mg2 and the key surface electrode patterns Mf1, Mf2, Mf3 on the keyboard composite electrode module 14 in the following embodiments), resulting in The touch sensing data is highly variable, and it is difficult to adjust the touch key by key. Threshold value (such as a specific capacitance value) for sending touch signals. After all, the key gap mainly consists of an air medium (or an additional keyboard frame), and the key elements below the key surface include multiple key elements to allow the keys to move up and down. Another problem is the openings on the touch electrodes, because the touch electrodes may need to be penetrated by the keyboard frame or key elements; especially if the relative positions, shapes and sizes of multiple openings are inconsistent, the shape/size of some touch electrodes will be affected. Incompleteness and inconsistency, or inconsistent location/quantity, keep touch sensing data variability high. Because it is too complicated and difficult to customize the configuration for each local sensing area of each button, each text button is prone to false triggering or breakpoint not triggering at different positions, and the configuration of the light source circuit further affects the touch electrodes. Consistency of shape/position brings great challenges to the uniformity or regularization of touch sensing of the illuminated keyboard, and is also one of the technical problems that the present invention will overcome through the following embodiments.

Please refer to Figures 1A, 1B. The touch keyboard 10 according to the first embodiment of the present invention includes a plurality of key structures 12 and a keyboard composite electrode module 14 integrated with the plurality of key structures 12 (for the sake of simplicity, in FIGS. 1A and 1B , both are represented by a single component ). The key structure 12 includes a key cap 13 , a bottom plate 15 , an elastic restoring member 16 and a supporting structure 17 (not shown in FIG. 1A to simplify the drawing). The keycap 13 is disposed above the bottom plate 15 . An elastic restoring member 16 (eg, a rubber round protrusion) is disposed between the keycap 13 and the bottom plate 15 . The support structure 17 is connected between the keycap 13 and the bottom plate 15 . The plurality of key structures 12 share the same bottom plate 15 . The keyboard composite electrode module 14 is disposed between the bottom plate 15 and the plurality of keycaps 13 . The keycap 13 can move up and down relative to the bottom plate 15 and the keyboard composite electrode module 14 via the corresponding support mechanism 17 . The keycap 13 that moves downward can squeeze the elastic restoring member 16 , and the resilient force of the squeezed elastic restoring member 16 can drive the keycap 13 to move upward and return to its original position. A virtual touch area 120 (only shown in FIG. 1A ) can be defined on the light-emitting touch keyboard 10 for touch operations (including non-pressing movements) of objects O such as a user's finger or a stylus, which is roughly located in the touch area. The middle portion of the keypad 10 and covers a plurality of key structures 12 (or the topside area of the keycap 13) and a plurality of keyspace layouts 125 (with a hatched area) 1A ), each key space layout 125 surrounds one key structure 12 (or key cap 13 ). The projection of the touch area 120 on the keyboard composite electrode module 14 (ie, the touch area projection 140 is shown in FIG. 1A with a dotted line), and the projection of the keycap 13 on the keyboard composite electrode module 14 is the key projection area 18 ( 1A), the projection of the key gap layout 125 on the keyboard composite electrode module 14 is the key gap layout projection 143 (shown in FIG. 1A with a hatched area), and the key gap layout projection 143 surrounds the corresponding Key projection area 18. The touch area projection 140 covers a plurality of key projection areas 18 and corresponding key space layout projections 143 . The keyboard composite electrode module 14 can sense the non-pressing movement of the object O in the touch area 120 , and provide light to be emitted from the plurality of keycaps 13 .

In addition, in the first embodiment, some parts of the plural keycaps 13 are text keys of equal size, that is, single-siz keys/square keys or alphanumeric keys ( alphanumeric keys), which can generate text signals to input English letters/numbers and certain symbols. Other parts of the keycap 13 surround the square key, such as a small key with a smaller size or a multi-size key with a larger size. Usually, the ESC/F1~F12 function keys in the front row are small key sizes, while the space keys/Enter/Shift/CapsLock/Ctrl are multiple key sizes. In this embodiment, the key structures 12 (or key caps 13 ) corresponding to the touch area 120 are of the same geometric size (eg, square keys) and are arranged in four rows, including the first row of key combinations 121 and the second row of key combinations 122 , the third row of key combinations 123 and the fourth row of key combinations 124, the key structures 12 of the two adjacent rows are not aligned in the second direction W (eg, the width direction) (ie, dislocated). Therefore, the key projection areas 18 are also not aligned in the second direction W (that is, they are also misaligned), and the same is true for the key space layout projection 143 .

Please also refer to Figures 2A, 2B. In FIG. 2A , only the electrodes of the keyboard composite electrode module 14 are shown to simplify the drawing; in addition, the key projection area 18 is also shown in FIGS. 2A and 2B to facilitate the observation of the electrode layout of the keyboard composite electrode module 14 The relative position to the key projection area 18 . The keyboard composite electrode module 14 includes a light source circuit 30 and a touch sensing circuit 40 . The light source circuit 30 includes a plurality of light sources 31 . touch sensor The path 40 includes a plurality of first electrode strings 20 (shown in thin solid lines in the figure) and a plurality of second electrode strings 22 (shown in thick solid lines in the figure). The plurality of first electrode strings 20 extend along the first direction L (eg, the length direction) and are arranged at intervals in the second direction W (eg, the width direction). The plurality of second electrode series 22 extend along the second direction W and are arranged at intervals in the first direction L so as to be alternately arranged with the plurality of first electrode series 20 . In the range of the touch area projection 140 corresponding to the touch area 120, each key projection area 18 covers the same key surface electrode pattern (eg Mf1, Mf2, Mf3), and each key surface electrode pattern (eg Mf1, Mf2, Mf3) includes one of the plurality of light sources 31 . That is, in the keyboard composite electrode module 14 , the plurality of light sources 31 are arranged one-to-one at positions corresponding to the plurality of keycaps 13 .

Specifically, the plurality of first electrode strings 20 and the plurality of second electrode strings 22 are alternately arranged to form a plurality of electrode arrays M arranged along the first direction L and the second direction W. That is, the complex electrode matrix M formed by staggered arrangement of the plurality of first electrode series 20 and the plurality of second electrode series 22 is continuously arranged along the first direction L and the second direction W. Each electrode matrix M has the same electrode layout (for example, the number, shape, position, etc. of the first electrode series/second electrode series are correspondingly the same). Each electrode matrix M corresponds to one key projection area 18 , and two adjacent electrode matrices (eg, Ma, Mb) in the second direction W are not aligned. In other words, the complex electrode arrays M correspond to the complex key projection areas 18 one-to-one. Therefore, the electrode matrix M is also arranged in the same arrangement as the key projection area 18 in the touch area projection 140 , wherein the two adjacent electrode matrixes M in the second direction W are not aligned.

As shown in FIG. 2B , three key projection areas 18 are also shown, which are marked as 18a-c respectively. For example, the key projection area 18a corresponds to the key combination 122 in the second row, and the key projection areas 18b and 18c correspond to the key combination 121 in the first row. The key projection area 18a is located in the corresponding electrode matrix (marked as Ma), the key projection area 18b (adjacent to the key projection area 18a in the second direction W) is located in the corresponding electrode matrix (marked as Mb), and the key projection area 18c (adjacent to the key projection area 18b in the first direction L and adjacent to the key projection area 18b in the second direction W Shadow regions 18a) are located within the corresponding electrode matrix (labeled Mc). Please also refer to FIGS. 3A and 3B , which respectively show schematic diagrams of electrode layouts corresponding to the first electrode series 20 and the second electrode series 22 corresponding to the electrode matrix in FIG. 2B . For the electrode matrix Ma, it includes a plurality of first electrode string segments 20a-c and a plurality of second electrode string segments 22a-d, which are staggered with each other; for the electrode matrix Mb, it includes a plurality of first electrode strings The segments 20d˜f and the plurality of second electrode series segments 22e˜h are arranged staggered with each other; as far as the electrode matrix Mc is concerned, it includes a plurality of first electrode series segments 20g˜i and a plurality of second electrode series segments 22i˜1 , staggered with each other. The first electrode series segments 20d˜f are respectively connected in series with the first electrode series segments 20g˜i in the first direction L, and the second electrode series segments 22a and the second electrode series segments 22k are connected in the second direction. The second electrode series section 22b and the second electrode series section 22l are connected in series in the second direction W, the second electrode series section 22c and the second electrode series section 22e are connected in the second direction W in series In series connection, the second electrode series section 22d and the second electrode series section 22f are connected in series in the second direction W.

As shown in FIG. 2B , one key-gap layout projection (indicated by the hatched area) surrounds the corresponding key projection area 18a (or around the corresponding electrode matrix Ma), and another key-gap layout projection (indicated by the hatched area) Around the corresponding key projection area 18b (or around the corresponding electrode matrix Mb). The projections of the two key gap layouts overlap at the adjacent positions of the electrode matrices Ma and Mb (the key projection areas 18a and 18b). In the first embodiment, the arrangement of the plurality of first electrode strings 20 and the plurality of second electrode strings 22 is specially designed, so that each keycap 13 (or key structure 12 ) can correspond to the same electrode layout, improving the The regularity of the touch sensing data reduces the breakpoints of the touch track, improves the sensitivity of the touch sensing, and also simplifies the design complexity of the touch electrodes.

As shown in FIGS. 2A and 2B , the arrangement spacing of the key projection areas 18 along the first direction L (for example, the key projection area 18b and the key projection area 18c (or the adjacent two key caps 13 in the first direction L) is the same as the first The center-to-center distance in the direction L) is defined as the key-to-center distance PL. Corresponding to the first row of button combinations 121 and the second row of button combinations 122 The key projection area 18 of 1/2 is arranged in dislocation with the key center distance PL; The key projection area 18 corresponding to the second row of key combination 122 and the third row of key combination 123 is arranged in dislocation with 1/4 of the key center distance PL; The key projection areas 18 corresponding to the third row of key combinations 123 and the fourth row of key combinations 124 are staggered by 1/2 of the key center distance PL. Corresponding to each electrode matrix M (eg, the electrode matrix Ma), it includes three first electrode series sections 20a-c and four second electrode series sections 22a-d. Therefore, as shown in FIG. 2B , taking the electrode matrix Ma and the electrode matrix Mb as an example, the electrode matrix Ma is shifted to the right by 1/2 of the bond distance PL relative to the electrode matrix Mb in the first direction L, which is exactly the second electrode The arrangement pitch AL of the arrays 22 in the first direction L is a multiple (2 times in this example), so the second electrode array segments 22c-d of the electrode matrix Ma can be arrayed with the second electrode arrays of the electrode array Mb. Segments 22e~f are aligned. This alignment result also occurs between other electrode matrices M corresponding to different row key combinations, which will not be described in detail. In addition, the arrangement pitch between the electrode matrix Mb and the electrode matrix Mc in the first direction L (ie the bond center pitch PL) is a multiple of the arrangement pitch AL (4 times in this example), so the electrode matrix Mb and the electrode matrix Mc It can correspond to the same layout of the second electrode series 22 . The corresponding result of the electrode layout also occurs between other electrode matrices M corresponding to the key combination in the same row, which will not be described in detail. In addition, in the first embodiment, the arrangement pitch of the key projection areas 18 along the second direction W (for example, the center distance between the key projection area 18a and the key projection area 18b in the second direction W) is defined as the key pitch (key pitch). ) PW, which is three times the arrangement pitch AW of the first electrode series 20 in the second direction W, so the adjacent electrode arrays M (for example, the electrode matrix Ma and the electrode matrix Mb) in the second direction W can correspond to The same first electrode string 20 is laid out. Therefore, in the first embodiment, the key surface electrode patterns of the corresponding electrode matrix M covered by each key projection area 18 are the same, for example, the key surface electrode patterns Mf1, Mf2, Mf3 covered by the key projection areas 18a-c are all the same ( As shown in FIG. 2B ); each key gap layout projection 143 covers the same key gap electrode pattern, for example, the key gap electrode patterns Mg1 and Mg2 covered by the key gap layout projection are the same (as shown in FIG. 2B ).

Specifically, the plurality of first electrode series 20 and the plurality of second electrode series 22 of the touch sensing circuit 40 may have a Manhattan electrode configuration. As shown in FIG. 3A , each first electrode string 20 includes a plurality of first main line segments 20 ′ and a plurality of first branch line segments 20 ″ (represented by a first electrode string). The plurality of first main line segments 20 ′ are along the first The directions L extend and are linearly connected to each other. The plurality of first branch line segments 20 ″ are arranged at intervals in the first direction L, and protrude from the plurality of first main line segments 20 ′ along the second direction W. For example, a plurality of electrode arrays (such as Mb, Mc) arranged along the first direction L can be connected in series with each other by corresponding to the first main line segment 20', for example, the first electrode series segments 20d-f are respectively connected with the first electrode The serial sections 20g˜i are connected in series in the first direction L by their first main line sections 20'. The plurality of first branch line segments 20 ″ are arranged at intervals in the first direction L and protrude from the corresponding first main line segment 20 ′ along the second direction W. In this embodiment, the plurality of second branch line segments 20 ″ are corresponding to the first main line segment 20 ′. The main line segment 20 ′ is centered and protrudes equally to both sides along the second direction W, but it is not limited thereto. In other words, each of the first electrode strings 20 includes a string trunk extending along the first direction L from a plurality of first main line segments 20 ′ and linearly connected in series, and a plurality of first branch line segments 20 ″ being spaced apart from the string trunks. Dry, constituted in the form of dendritic electrodes.

As shown in FIG. 3B , each second electrode string 22 includes a plurality of second main line segments 22 ′ and a plurality of second branch line segments 22 ″ (represented by a second electrode string). The plurality of second main line segments 22 ′ are along the second The direction W extends and is arranged at intervals, and is staggered in the first direction L into two columns (eg left column, right column). A plurality of second branch line segments 22 ″ are arranged at intervals along the second direction W and extend along the first direction L to connect Adjacent second main line segments 22' in both columns. For example, the plurality of electrode arrays (eg Ma, Mb) staggered along the second direction W can be connected in series with each other by corresponding to the second main line segments 22 ′, such as the second electrode series segment 22c and the second electrode series The segments 22e are staggered and connected in series in the first direction W by corresponding second main line segments 22' and a plurality of second branch line segments 22" in the two columns. In other words, each second electrode string 22 includes a plurality of second main line segments 22' is in the form of a dendritic electrode with a zigzag trunk, which is staggered along the first direction L and is connected by a plurality of second branch line segments 22" at intervals.

Furthermore, referring to FIGS. 2B , 3A and 3B at the same time, the arrangement intervals of the plurality of first branch line segments 20 ″ of the first electrode series 20 in the first direction L are substantially the same, so that the plurality of first branch line segments 20 ″ are respectively arranged adjacent to each other. between the two second main line segments 22'. The second branch line segments 22" of the plurality of second electrode series 22 are arranged at substantially the same interval in the second direction W, so that the plurality of second branch line segments 22" are respectively disposed between two adjacent first main line segments 20'. In other words, the plurality of second electrode strings 22 are interleaved with the first main line segments 20' of the plurality of first electrode strings 20 only by a part of the second main line segments 22'.

In addition, in the first embodiment, the arrangement of the plurality of first electrode strings 20 and the plurality of second electrode strings 22 is specially designed so that each key cap 13 (or key structure 12 ) can correspond to the same electrode layout . See Figures 2A, 2B. The plurality of first electrode series 20 and the plurality of second electrode series 22 are alternately arranged to form a uniform electrode distribution. The arrangement pitch AL of the second electrode series 22 in the first direction L is also equivalent to the arrangement pitch of the adjacent second branch line segments 22 ″ in the first direction L (that is, the distance between the adjacent second branch line segments 22 ″ distance between the two midpoints). The arrangement pitch AW of the first electrode series 20 in the second direction W is also equivalent to the arrangement pitch of the adjacent first branch line segments 20 ″ in the second direction W (that is, the distance between the adjacent first branch line segments 22 ″. The distance between the two midpoints, in this embodiment, is equal to the distance between the adjacent first main line segments 20'). In practice, the length (or outline) of each first branch line segment 20 ″ is in principle the same, and the dimension SW of the first branch line segment 20 ″ in the second direction W is the key distance PW, in the second direction W A function of the gap DW of the adjacent first branch line segments 20" and the number of first branch line segments 20" covered by the bond center distance PW in the second direction W; the size of the second branch line segment 22" in the first direction L SL is a function of the bond-to-center distance PL, the gap DL of the adjacent second branch line segments 22" in the first direction L, and the number of second branch line segments 22" covered by the bond-to-center distance PL in the first direction L. For example : SW=(PW-DW*NW)/NW; SL=(PL-DL*NL)/NL; wherein, PW represents two adjacent key projection areas 18 (for example, the key projection areas 18a/18b or the electrode matrix in FIG. 2B ) Ma/Mb) in the second direction W, the key center distance PW, PL is the adjacent two key projection areas 18 (for example, the key projection areas 18b/18c or the electrode matrix Mb/Mc in FIG. 2B ) in the first direction L key distance. DW represents the key projection area 18 (for example, the key projection area 18a/18b/18c in FIG. 2B ) or the electrode matrix M (for example, Ma/Mb/Mc in FIG. 2B ) adjacent two first branch line segments 20 ″ in the second direction W The gaps DW and DL above represent the key projection area 18 (such as the key projection area 18a/18b/18c in FIG. 2B ) or the adjacent two second branch line segments 22″ in the electrode matrix M (such as Ma/Mb/Mc in FIG. 2B ). A gap DL in the first direction L. NW represents the number of electrode columns covered by the bond center distance PW in the second direction W (equivalent to the number of the first electrode series 20 covered in the second direction W), and NL represents the bond center distance PL in the first direction L The number of covered electrode columns (equivalent to the number of covered second electrode series 22 in the first direction L). SW represents the dimension of the first branch line segment 20" in the second direction W, and SL represents the dimension of the second branch line segment 22" in the first direction L.

The number of rows and columns (NW, NL) of the electrode matrix is the number of rows and columns of electrodes covered by the bond center distance (PW, PL) according to the aforementioned formula. Since the adjacent two electrode matrices M/Ma/Mb/Mc are continuously arranged with a certain electrode spacing/and usually The electrode spacing of the entire keyboard composite electrode module 14 is similar or the same, and the number of electrode rows (NW, NL) is also equivalent to the single key projection area 18/18a/18b/18c or the electrode matrix M/Ma/Mb/Mc. The corresponding line-row amount of electrodes covered in the second direction W or the first direction L (ie, a single side) (equivalent to a single key projection area 18/18a/18b/18c or an electrode matrix M/Ma/ The total number of electrode rows or columns on a single side in Mb/Mc). For the electrode matrix Ma/Mb/Mc of FIG. 2B , the number of electrode rows and columns covered by the electrode matrix /Ma/Mb/Mc in the first direction L is 4 (ie, 4 second electrode strings 22 ), and in the first direction L The number of electrode rows and columns covered in the two directions W is 3 (ie, 3 first electrode series 20), which is equivalent to the number of 4 electrode rows and columns covered by the bond center distance PL (NL=4), while the number of rows and columns of electrodes covered by PW (NW=3). In other words, the length SW of the first branch line segment 20 ″ in the second direction W is equal to the bond center distance PW minus the multiplier of the number of electrode columns NW and the electrode distance DW, and then divided by the number of electrode rows and columns NW. Similarly, the second The length SL of the branch line segment 22 ″ in the first direction L is equal to the bond center distance PL minus the multiplier of the electrode column number NL and the electrode distance DL, and then divided by the electrode column number NL.

For the above and the following embodiments of the present invention, it is premised on the fixed electrode gap (DL/DW) and the fixed electrode size (SW/SL). Regarding the application of the formula for the second direction W, the size of any electrode in the second direction W is the key-to-center distance PW/electrode spacing DW/ of the key projection area 18 and in each electrode matrix Ma/Mb (or the key-center distance PW) covered) as a function of the number NW of electrode rows and columns. Similarly, the aforementioned formula can also be used in the first direction L, that is, the size of any electrode in the first direction L, which is the key center distance PL/electrode distance DL/ of the key projection area 18 and each electrode matrix Ma/Mb A function of the number NL of electrode rows and columns in (or covered by the bond center distance PL). To sum up, the dimensions in the second direction W/the dimensions in the first direction L of electrodes of the same shape and dimension (eg, the length of a rectangle side or the length of a rhombus diagonal) can be deduced according to the above formulas.

As shown in FIGS. 2B and 3C , the light source circuit 30 includes a plurality of light source circuits 32 for electrically connecting the plurality of light sources 31 . The plurality of light source lines 32 extend along the first direction L and are spaced apart in the second direction W, so that the plurality of light source lines 32 are spaced apart from the plurality of first electrode strings 20 and interlaced with the plurality of second electrode strings 22 . In each key projection area 18 , the corresponding positions of the light sources 31 in the electrode matrix M are the same, and the corresponding configurations of the light source lines 32 in the electrode matrix M are also the same. For example, the plurality of second electrode strings 22 are interleaved with the plurality of light source lines 32 only by a part of the second main line segments 22'. The paired light source lines 32 extend along the first direction L through adjacently disposed electrode matrices (eg, Mb, Mc), and have electrical contacts extending opposite to each other. The light source 31 (eg, LED) can be electrically connected to the pair of light source lines 32 by electrically connecting electrical contacts with surface mount technology. In this way, each key projection area covers the same key surface electrode pattern (eg Mf1, Mf2, Mf3), which is composed of parts of the first electrode series 20, parts of the second electrode series 22, and pairs. light source line A portion of the path 32 and a light source 31 are formed.

It should be noted here that, due to the arrangement of the light source circuit 30 , the configurations of the plurality of first electrode series 20 and the plurality of second electrode strings 22 in the touch sensing circuit 40 may be slightly changed. For example, the plurality of light source lines 32 extend along the first direction L and are spaced apart in the second direction W (that is, the paired light source lines 32 are disposed in the second direction W in two adjacent first electrode strings) Therefore, the first branch line segment 20 ″ of the first electrode series 20 adjacent to the light source line 32 will slightly change corresponding to the wiring of the light source line 32 and the position of the light source 31 , such as shortening the length to form an escape Space for setting the light source circuit 30. Since the relative positions of the light sources 31 in the corresponding electrode matrix M/Ma/Mb/Mc are the same, the key surface electrode patterns (eg Mf1/Mf2/Mf3) covered by each key projection area 18 Even if the light source 31 is included, it will be the same, so each keycap 13 (or key structure 12 ) can correspond to the same electrode layout, which improves the regularity of touch sensing data, reduces the breakpoints of the touch track, and improves the The sensitivity of the touch sensing can also simplify the design complexity of the touch electrodes.

In addition, referring to FIG. 3D , the plurality of light source lines 32 and the plurality of first electrode series 20 in the light source circuit 30 both extend along the first direction L and are spaced apart in the second direction W, so the light source circuit 30 can be connected with the plurality of first electrodes The tandem 20 is integrated into an electrode design of the same layer, but not limited thereto. According to the design of the actual light source circuit, the plurality of light source lines 32 in the light source circuit 30 can extend along the second direction W and be arranged at intervals in the first direction L, and be integrated with the plurality of second electrode series 22 to form the same layer of electrode design, or The light source circuit, the plurality of first electrode series 20 and the plurality of second electrode series 22 can be designed as electrodes of different layers.

In addition, in the first embodiment, the keyboard composite electrode module 14 is located between the bottom plate 15 and the keycap 13 , so the keyboard composite electrode module 14 has a plurality of through holes 141 (refer to FIG. 2B ) to provide the support structure 17 and the bottom plate 15 space required for connecting structures. The perforation 141 is located just below the keycap 13 and affects the electrode pattern on the key surface. As shown in FIG. 3A/3B/3C, the key surface electrode pattern Mf1 of the key projection area 18a has a perforated cloth The frame 141a (or it is defined by the through holes 141 corresponding to the key projection area 18a), and the key surface electrode pattern Mf2 of the key projection area 18b has a perforation layout 141b (or it is defined by the through holes 141 corresponding to the key projection area 18b) , the key surface electrode pattern Mf3 of the key projection area 18c has a perforation layout 141c (or defined by the perforations 141 corresponding to the key projection area 18c), and the perforation layouts 141a, 141b and 141c are the same. That is, the number of perforations of the key surface electrode patterns corresponding to each key projection area 18 is the same and the relative positions thereof are also the same.

2B/3A/3C, the key surface electrode patterns (eg Mf1, Mf2, Mf3) further include a first trigger conductive portion 202 and a second trigger conductive portion 222, wherein the first trigger conductive portion 202 and the second trigger conductive portion 222 extends from a first electrode series 20 and a second electrode series 22 respectively. For example, in the electrode matrix M (Ma/Mb/Mc) corresponding to the key projection area 18, the first trigger conductive portion 202 is formed by the first electrode series 20 adjacent to the center of the key projection area 18, and the second trigger conductive portion The portion 222 is formed by the second electrode series 22 adjacent to the center of the key projection area 18 , so that the first trigger conducting portion 202 and the second trigger conducting portion 222 are opposite to each other without intersecting. In other words, in the light-emitting touch keyboard 10 , the switch circuit 50 may include a plurality of key switches 52 composed of a plurality of pairs of the first trigger conductive portion 202 and the second trigger conductive portion 222 , and the plurality of key switches 52 correspond to the plurality of keys one-to-one. Cap 13 set.

As shown in FIG. 4 , the first trigger conductive portion 202 and the second trigger conductive portion 222 can be conducted through the conductive connection portion 19 . In one embodiment, the conductive connection portion 19 may be a conductive portion disposed on any member of the button 12 , such as a conductive portion disposed on the downwardly protruding portion of the elastic reset member 16 . In other words, the first trigger conductive portion 202 and the second trigger conductive portion 222 constitute a key switch 52 , and the key cap 13 can be pressed down to trigger the corresponding key switch 52 , for example, through the elastic reset member 16 to be squeezed and deformed to act as a key switch 52 . The conductive portion of the conductive connection portion 19 contacts the first trigger conductive portion 202 and the second trigger conductive portion 222 downward simultaneously, so that the key switch 52 is triggered to generate a trigger signal (such as a text signal), and then execute the corresponding key input function. In this embodiment, the conductive connection portion 19 includes a contact surface (for example, the conductive material is substantially completely disposed on the elastic reset member). 16), and the first trigger conducting portion 202 and the second trigger conducting portion 222 respectively include at least one contact line, so that the first trigger conducting portion 202 and the second trigger conducting portion 222 communicate with these The contact lines are in contact and are electrically connected to each other, thereby generating a trigger signal. In one embodiment, the contact line can be, for example, one of straight lines, arcs, rings, rectangles, and zigzags, or any combination thereof.

As shown in FIG. 5A and FIG. 5B , in the first embodiment, the keyboard composite electrode module 14 carries the light source circuit 30 and the touch sensing circuit 40 in the electrode carrying structure of a single substrate. For example, the electrode carrying structure includes a first substrate 142'. The light source circuit 30 , the plurality of first electrode series 20 and the plurality of second electrode series 22 are disposed on the same surface of the first substrate 142 ′ (eg, the first upper surface 142 a facing the keycap 13 ), and are arranged on the second Where the electrode series 22 and the light source circuit 30 and the plurality of first electrode series 20 are alternately stacked, an insulating layer 144 is disposed between the plurality of second electrode series 22 and the light source circuit 30 and between the plurality of second electrode series 22 and the plurality of first electrode series 22 . between a series of electrodes 20 . For example, the light source circuits 30 (ie the plurality of light source circuits 32 ) and the plurality of first electrode strings 20 can be simultaneously formed on the first upper surface 142a of the first substrate 142 ′ by printing technology, such as the electrode layout shown in FIG. 3D , The projections of the light source circuit 30 and the plurality of first electrode series 20 on the first substrate 142 ′ do not overlap. Afterwards, a dot-shaped insulating layer can be formed on the intersections of the plurality of light source lines 32 and the plurality of first electrode series 20 (ie the plurality of first main circuit segments 20') and the plurality of second electrode series 22 by printing technology. Next, the plurality of second electrode series 22 can be formed on the first upper surface 142a of the first substrate 142' by printing technology, such as the electrode layout shown in FIG. 3B, so that the plurality of second electrode series 22 and the light source circuit 30 and Where the plurality of first electrode series 20 are alternately stacked, the light source circuit 30 (or the plurality of first electrode series 20 ) is located between the plurality of second electrode series 22 and the first substrate 142 ′. In other words, where the plurality of second electrode strings 22 and the light source circuits 30 (or the first electrode strings 20 ) are alternately stacked, the second main line segments 22 ′ are stacked on the light source circuits 32 (or the first main lines 22 ′ via the insulating layer 144 ). road section 20') instead of being directly formed on the first upper surface 142a, and the plurality of second electrode strings 22 do not overlap the light source circuit 30 (or the first electrode strings 20) alternately where the plurality of second electrode strings 22 may be directly formed on the first upper surface 142a. In this structure, in practice, the plurality of light source lines 32 (excluding the electrical contacts), the plurality of first electrode series 20 and the plurality of second electrode series 22 can be covered with a protective layer (not shown in the figure). ), providing protection and insulation effects at the same time, and the light source 31 can be electrically connected to the electrical contacts of the corresponding light source circuit 32 by surface mounting technology to form three circuits including the light source circuit 30, the touch sensing circuit 40, and the switch circuit 50. Three-in-one single-layer composite electrode module structure on one-layer substrate.

In the above-mentioned embodiment, although the keyboard composite electrode module 14 carries the light source circuit 30 and the touch sensing circuit 40 in the electrode carrying structure of a single substrate, it is not limited thereto. In other embodiments, the keyboard composite electrode module 14 can carry the light source circuit 30 , the touch sensing circuit 40 , the switch circuit 50 and the like through the electrode carrying structure of the multilayer substrate. Furthermore, the conductive connection portion for triggering the switch (eg, 52 ) can also be integrated into the keyboard composite electrode module instead of being provided on the key member (eg, the conductive portion provided on the elastic reset member 16 ). As shown in FIGS. 6 and 7A to 7D, the electrode carrying structure includes a first substrate 142', a second substrate 146' and a spacer layer 144'. The second substrate 146' is disposed relative to the first substrate 142', and the spacer layer 144' is sandwiched between the first substrate 142' and the second substrate 146'. As shown in FIG. 7A , the light source circuit 30 , the plurality of first electrode series 20 (including the first trigger conductive parts 202 ) and the plurality of second electrode series 22 (including the second trigger conductive parts 222 ) are disposed on the first substrate 142 ′ the same surface (such as the first upper surface 142a), and the configuration and structural details of the light source circuit 30, the plurality of first electrode series 20 and the plurality of second electrode series 22 can refer to the above-mentioned embodiments (such as FIGS. 2A-5B ). The related descriptions are not repeated here.

As shown in FIG. 7B , the spacer layer 144' has a plurality of openings 144c, which are disposed corresponding to the plurality of key switches 52 of the switch circuit 50 on a one-to-one basis. For example, each opening 144c is a through hole penetrating from the upper surface 144a to the lower surface 144b of the spacer layer 144 ′, so as to be formed on the first substrate 142 ′ and constitute the first triggering conductive portion 202 and the second triggering conductive portion 202 of the key switch 52 . The trigger conductive portion 222 can be exposed through the opening 144c. The spacer layer 144' is The positions corresponding to the plurality of light sources 31 further have a plurality of through holes 144 d for the corresponding light sources 31 to pass through. In addition, the spacer layer 144' may be provided with a plurality of through holes 141' corresponding to the connection structure between the support structure 17 and the bottom plate 15, that is, the positions of the plurality of through holes 141' of the spacer layer 144' correspond to the plurality of through holes 141 of the first substrate 142'.

As shown in FIG. 7C, a plurality of conductive connection portions 146c are formed on the second substrate 146'. Specifically, the second substrate 146' has a second upper surface 146a and a second lower surface 146b, wherein the second upper surface 146a is the surface facing away from the first substrate 142', and the second lower surface 146b is facing the first the surface of the substrate 142'. The plurality of conductive connection portions 146c are formed on the second lower surface 146b of the second substrate 146', and are disposed relatively spaced apart from the key switch 52 (ie, the first trigger conductive portion 202 and the second trigger conductive portion 222) through the corresponding openings 144c. The second substrate 146' further has a plurality of through holes 146d corresponding to the plurality of light sources 31 for the corresponding light sources 31 to pass through. In addition, a plurality of through holes 141 ″ may be formed on the second substrate 146 ′ corresponding to the connection structure between the support structure 17 and the bottom plate 15 , that is, the positions of the plurality of through holes 141 ″ of the second substrate 146 ′ correspond to the plurality of through holes 141 ′ of the spacer layer 144 ′ and the plurality of through holes 141 of the first substrate 142'. It should be noted here that the layout of the conductive connection portion 146c shown in FIG. 7C is a perspective view through the second upper surface 146a. As shown in FIG. 7D , when the first substrate 142 ′, the spacer layer 144 ′ and the second substrate 146 ′ are sequentially stacked from bottom to top, the drawings of FIGS. 7A , 7B and 7C can be stacked in sequence, so that each key The key surface electrode pattern covered by the projection area 18 may have a configuration similar to that shown in FIG. 4 , wherein the first trigger conductive portion 202 and the second trigger conductive portion 222 are disposed at relatively intervals corresponding to the opening 144c and the conductive connection portion 146c. The portion of the keyboard composite electrode module 14 corresponding to the first trigger conductive portion 202 and the second trigger conductive portion 222 can be pressed, so that the conductive connection portion 146c is electrically connected to the first trigger conductive portion 202 and the second trigger conductive portion 222 through the opening 144c . That is, when the button 13 is pressed, the button 13 is moved toward the bottom plate 15 by the support of the supporting structure 17, and is pressed against the second substrate 146' of the keyboard composite electrode module 14 through the elastic reset member 16, so that the second substrate 146' is partially The conductive connecting portion 146c is deformed downward, and the conductive connecting portion 146c contacts the first triggering conductive portion 202 and the second triggering conductive portion 222 through the opening 144c, thereby generating a triggering signal.

Furthermore, when the first substrate 142', the spacer layer 144' and the second substrate 146' are sequentially stacked from bottom to top, the plurality of through holes 141" of the second substrate 146', the plurality of through holes 141' of the spacer layer 144' and The plurality of through holes 141 of the first substrate 142' are aligned and communicated with each other to provide space required for the connection structure between the support structure 17 and the bottom plate 15. The plurality of through holes 144d of the spacer layer 144' and the plurality of through holes 146d of the second substrate 146' are mutually connected Aligned and communicated with each other to allow the plurality of light sources 31 disposed on the first substrate 142' to pass through the through holes 144d and 146d in sequence from the lower surface 144b of the spacer layer 144' to the second upper surface of the second substrate 146' 146a is exposed so that the light provided by the light source 31 can be emitted from the corresponding keycap 13 .

In the aforementioned embodiment, the light source circuit 30 , the touch sensing circuit 40 and the switch circuit 50 are all formed on the same surface of the same substrate, but not limited thereto. In other embodiments, the light source circuit 30 , the touch sensing circuit 40 and the switch circuit 50 included in the keyboard composite electrode module 14 may be formed on the same or different substrates. As shown in FIGS. 8 and 9A to 9C, the electrode carrying structure includes a first substrate 142', a second substrate 146' and a spacer layer 144'. The second substrate 146' is disposed relative to the first substrate 142', and the spacer layer 146' is sandwiched between the first substrate 142' and the second substrate 146'. As shown in FIGS. 9A-9C , the light source circuit 30 and the plurality of first electrode series 20 (including the first trigger conductive portion 202 ) are disposed on the same surface (eg, the first upper surface 142 a ) of the first substrate 142 ′, and the plurality of first The two electrode series 22 (including the second trigger conductive portion 222 ) are formed on the second lower surface 146 b of the second substrate 146 ′. In this embodiment, the configuration and structural details of the light source circuit 30 , the plurality of first electrode strings 20 and the plurality of second electrode strings 22 may refer to the relevant descriptions of the foregoing embodiments (eg, FIGS. 2A-5B ), and the difference is only in the first The shape of the first trigger conductive portion 202 and the second trigger conductive portion 222 are different (eg, in the form of straight contact lines). In this embodiment, the spacer layer 144 ′ has structural details similar to those in FIG. 7B , and the layout of the plurality of second electrode strings 22 (including the second trigger conductive portions 222 ) shown in FIG. 9C is seen through the second upper surface 146 a view.

As shown in FIG. 10 , when the first substrate 142 ′, the spacer layer 144 ′ and the second substrate 146 ′ are sequentially stacked from bottom to top, in the key surface electrode pattern corresponding to each key projection area 18 , the first trigger The conductive portion 202 and the second trigger conductive portion 222 are arranged at opposite intervals corresponding to the opening 144c, and the portion of the keyboard composite electrode module 14 corresponding to the first trigger conductive portion 202 and the second trigger conductive portion 222 can be pressed, so that the first trigger conductive portion 222 can be pressed. The portion 202 and the second trigger conductive portion 222 are close to each other through the opening 144c. That is, when the button 13 is pressed, the button 13 is moved toward the bottom plate 15 by the support of the supporting structure 17, and is pressed against the second substrate 146' of the keyboard composite electrode module 14 through the elastic reset member 16, so that the second substrate 146' is partially It deforms downward, so that the second trigger conductive portion 222 contacts the first trigger conductive portion 202 through the opening 144c to generate a trigger signal. In addition, for the configuration relationship between the light source 31 and the connection structure between the support structure 17 and the bottom plate 15 in the electrode carrying structure, reference may be made to the relevant descriptions of the foregoing embodiments.

In the foregoing embodiments, although the configuration of the touch sensing circuit is described in the form of dendritic electrodes, it is not limited thereto. In other embodiments, each electrode series of the touch sensing circuit may have different electrode forms, such as rectangle, diamond, and the like. Please refer to FIG. 11A and FIG. 11B , in this embodiment, the keyboard touch electrode module includes a plurality of first electrode strings 20 (shown with thin solid lines in the figure) and a plurality of second electrode strings 22 (shown with thick lines) The solid line is shown in the figure). Each of the first electrode series 20 includes a plurality of first electrodes 24 connected in series, and each of the second electrode series 22 includes a plurality of second electrodes 26 connected in series. The plurality of first electrode series 20 extend linearly parallel to the first direction L and are arranged in parallel and spaced apart in the second direction W; that is, the first electrodes 24 in each first electrode series 20 are connected in a straight line. The plurality of second electrode series 22 extend linearly parallel to the second direction W and are arranged in parallel and spaced apart in the first direction L; that is, the second electrodes 26 in each second electrode series 22 are connected in a straight line. The plurality of first electrode series 20 and the plurality of second electrode series 22 are alternately arranged to form a uniform distribution of electrodes. The plurality of first electrode strings 20 and the plurality of second electrode strings 22 form the same electrode matrix M, which are continuously arranged along the first direction L and the second direction W. Each electrode matrix M has the same Electrode layout (including the number and relative positions of the first electrodes 24 and the second electrodes 26 , etc.). The complex electrode matrix M corresponds to the complex key projection areas 18 one-to-one. Therefore, the electrode matrix M is also arranged in the same arrangement as the key projection area 18 in the touch area projection 140 , wherein the two adjacent electrode matrixes M in the second direction W are not aligned.

Similar to the configuration of FIG. 2B , FIG. 11B also shows three key projection areas, marked as 18a to c and their corresponding electrode matrices Ma to c respectively, and a plurality of first electrode strings 20 (including the first trigger conductive portion 202 ) ) and the configuration of the plurality of second electrode strings 22 (including the second trigger conductive portion 222 ) can be referred to FIG. 12A and FIG. 12B , respectively. In each electrode matrix, the arrangement of a plurality of first electrode string segments (eg, 20a-c, 20d-f, 20g-i) and a plurality of second electrode string segments (eg, 22a-d, 22e-h, 22i-l) For the relationship, refer to the relevant description of the first embodiment. That is, the key surface electrode patterns of the corresponding electrode matrix M covered by each key projection area 18 are the same, for example, the key surface electrode patterns Mf1, Mf2, Mf3 covered by the key projection areas 18a-c are all the same; The electrode patterns covering the same key gap are the same, for example, the key gap electrode patterns Mg1 and Mg2 covered by the key gap layout projection are the same; the perforation layout of each key surface electrode pattern is also the same, for example, the perforation layouts 141a, 141b, 141c are the same.

In this embodiment, the arrangement pitch AL of the second electrode series 22 in the first direction L is also equivalent to the arrangement pitch of the adjacent first electrodes 24 in the first direction L. The arrangement pitch AW of the first electrode series 20 in the second direction W is also equivalent to the arrangement pitch of the adjacent second electrodes 26 in the width direction W. As shown in FIG. In practice, the outline of each first electrode 24 is the same in principle, and the dimension SW of the first electrode 24 (or the second electrode 26 ) in the second direction W is the key distance PW, and adjacent in the second direction W A function of the gap DW of the first electrode 24 (or the second electrode 26 ), and the key distance PW covered by the number of the first electrode 24 (or the second electrode 26 ); the first electrode 24 (or the second electrode 26 ) The dimension SL in the first direction L is the bond distance PL, the gap DL between the adjacent first electrodes 24 (or second electrodes 26 ) in the longitudinal direction L, and the first electrode 24 (or the second electrode 26 ) covered by the bond distance PL function of the number of second electrodes 26). That is, in this embodiment, the first electrode 24 (or the second electrode 26) is The functional relationship of inch can also be expressed by the above formula, namely w=[P-(D*N)]/N, where P represents the adjacent two key projection areas 18 (or the two electrode matrix Ma/Mb in FIG. 11B ) in Key pitch in the first direction W (center to center/distance component PW or PL in the first direction W or the second direction L), D represents the key projection area 18/in the electrode matrix Ma/Mb The electrode gap DW or DL between the two adjacent electrodes (two first electrodes 24/two second electrodes 26, or the first electrode 24 and the second electrode 26) in the second direction W or the first direction L, and N represents in the The number of electrode rows and columns NW or NL covered by the bond center distance P in the second direction W or in the first direction L, w represents the side length of the first electrode 24 in the second direction W. In other words, the side length w of the first electrode 24 in the second direction W is equal to the bond center distance P minus the multiplier of the number of electrode columns N and the electrode distance D, and then divided by the number N of electrode rows and columns. As far as the electrode matrix Ma/Mb/Mc of FIG. 11B is concerned, the number of electrode rows and columns covered by the electrode matrix /Ma/Mb/Mc in the first direction L is 4, and the number of electrode rows and columns covered in the second direction W is 3 , which is equivalent to the number of 4 electrode rows and columns covered by the bond center distance PL (NL=4), and the number of 3 electrode rows and columns covered by PW (NW=3). To sum up, for the first electrode 24/second electrode 26 with the same shape (eg rectangle/rhombus) and size (eg rectangle side length or diamond diagonal length), the first electrode 24/second electrode 26 are in the second direction The size above W/the size in the first direction L can be deduced according to the above formula.

In this embodiment, the direct connection of electrodes refers to the relative positions of the two electrodes connected to each other in a longitudinal or transverse direction. The first direction L is parallel. In this embodiment, the first electrodes 24 and the second electrodes 26 are rhombus-shaped, which can increase the area utilization rate of the electrode distribution, and can also increase the degree of staggering between the first electrodes 24 and the second electrodes 26, which is helpful to improve the contact The sensing accuracy of the touch position.

Furthermore, corresponding to the setting of the light source circuit 30, the first electrode 24 and the second electrode 26 are preferably in the shape of a hollow diamond, that is, the first electrode 24 surrounds the first electrode light-transmitting portion 24a, and the second electrode 26 surrounds the second electrode 26 to form the first electrode light-transmitting portion 24a. Two electrode light-transmitting parts 26a. The plurality of light sources 31 of the light source circuit 30 are preferably arranged corresponding to the first electrodes In the light-transmitting portion 24a or the second electrode light-transmitting portion 26a, but not limited thereto. In other embodiments (not shown), the first electrode 24 and the second electrode 26 may be solid rhombus, and only the corresponding electrode (eg, the second electrode 26 ) at the location corresponding to the light source 31 is in the shape of a hollow rhombus or has a notch. The electrodes are designed to form an area for arranging the light source 31 (eg, the second electrode light-transmitting portion 26a). For example, as shown in FIGS. 12C and 12D , the plurality of light source lines 32 of the light source circuit 30 may extend along the first direction L and be spaced between the corresponding adjacent first electrode series 20 in the second direction W, and The position where the light source 31 is arranged may be in the second electrode light-transmitting portion 26 a surrounded by one of the second electrodes 26 . Thereby, the light emitted by the light source 31 can be emitted from the corresponding keycap 13 .

In one embodiment, the plurality of first electrode series 20 shown in FIG. 12A and the plurality of light source circuits 32 shown in FIG. 12C can be integrated into the same-layer circuit design shown in FIG. 12D , and the plurality of first electrode series shown in FIG. 12D A combination of an electrode string 20 and a light source circuit 32 can be integrated with the plurality of second electrode strings 22 shown in FIG. 12B on the same surface of the same substrate in a manner similar to that shown in FIG. The conductive part of the key member outside the module is triggered as a conductive connection; or (2) it can be integrated on the same surface of the same substrate (eg, the first substrate 142 ′) in a manner similar to that shown in FIGS. 7A to 7C , and by The conductive connection portion (eg, 146 c ) disposed on the second substrate 146 ′ is triggered through the opening 144 c of the spacer layer 144 ′. In other words, in the schematic diagram of the corresponding relationship between the electrode layout corresponding to a single button and the conductive connection portion shown in FIG. 13 , when the keyboard composite electrode module is formed in the manner of configuration (1), the conductive connection portion (eg 19 ) is When the conductive portion provided on the key member 16 is formed in the manner of arrangement (2) to form the keyboard composite electrode module, the conductive connection portion (eg 146c) is formed on another substrate (eg the second substrate 146'). In addition, by changing the design of the first trigger conductive portion 202 and the second trigger conductive portion 222, the combination of the plurality of first electrode series 20 and the light source lines 32 similar to that shown in FIG. 12D can be similar to that shown in FIG. 12B. The plurality of second electrode strings 22 are respectively disposed on different substrates of the electrode carrying structure in a manner similar to that shown in FIGS. 9A to 9C, and through the spacer layer The openings 144c of the 144' are in contact with each other to trigger the triggering. For the details of the above configurations (1), (2), and (3), reference may be made to the relevant descriptions of the foregoing embodiments, which will not be repeated here.

Furthermore, in the above-mentioned embodiment, although the plurality of first electrode series 20 and the plurality of light source circuits 30 can be integrated into a circuit design formed on the same surface of the same substrate or formed on different surfaces of different substrates, this is not the case. limit. In other embodiments (not shown), the touch sensing circuit 40 (ie the plurality of first electrode series 20 and the plurality of second electrode series 22 ) and the light source circuit 30 may be disposed on opposite surfaces of a substrate, respectively. For example, the touch sensing circuits 40 (such as the plurality of first electrode series 20 and the plurality of second electrode series 22 ) are located on the upper surface of the substrate, and the light source circuit 30 can be located on the lower surface of the substrate, and the hollow The electrodes are designed so that the light provided by the light source 31 can be transmitted through the light-transmitting parts of the electrodes (eg, 24a, 26a or the places where the electrodes are not provided on the substrate) and emitted toward the keycap 13 .

It can be known from the above-mentioned various embodiments that the keyboard composite electrode module of the present invention includes a complex electrode matrix M and a light source circuit 30 . The complex electrode arrays M are continuously arranged along the first direction L and the second direction W, and the two adjacent electrode arrays (for example, Ma, Mb) in the second direction W are shifted away from each other along the first direction L and not along the second direction. The two directions W are aligned, and at least two electrode matrices (eg, Ma, Mb) that are not aligned in the second direction W are identical to each other. Each electrode matrix M includes a plurality of first electrode series segments (eg, 20a˜c, 20d˜f, 20g˜i) and a plurality of second electrode series segments (eg, 22a ) that are alternately arranged with the first electrode series segments. ~d, 22e~h, 22i~l). The light source circuit 30 includes a plurality of light source lines 32 and a plurality of light sources 31 arranged in the plurality of light source lines 32 , wherein the plurality of light sources 31 are arranged in the plurality of electrode arrays M one-to-one, and each light source 31 is opposite to the corresponding electrode matrix M. Same location. Therefore, even when the light source circuit (and switch circuit) is integrated in the light-emitting touch keyboard and the keyboard composite electrode module of the present invention, each key projection area can cover the same electrode pattern including the light source, so that the reduction of The complexity of the electrode layout design improves the regularity of the electrode sensing performance, thereby improving the touch operation accuracy of the touch keyboard. In one embodiment, The touch keyboard 10 can combine the electrical state of the electrode module 14 with the keyboard through the control module. The control module may include a keyboard processing unit and a sensing processing unit. The keyboard processing unit is electrically connected to the switch circuit (eg, the first trigger conductive part and the second trigger conductive part) of the keyboard composite electrode module 14 to sense the state of the key switch. The sensing processing unit is electrically connected to the touch sensing circuit of the keyboard composite electrode module 14 to sense the capacitance value of the electrodes. The control module outputs the sensing result through the connection interface, such as outputting the alphanumeric input corresponding to the key structure, or the touch position in the touch area 120 .

The present invention has been described by the above-mentioned embodiments, however, the above-mentioned embodiments are for illustrative purposes only and not for limitation. Those skilled in the art will appreciate that the embodiments specifically described herein may incorporate other modifications of the illustrated embodiments without departing from the spirit of the invention. Accordingly, the scope of the present invention also encompasses such modifications and is limited only by the scope of the appended claims.

18: Key projection area

20: The first electrode string

22: The second electrode series

30: Light source circuit

40: Touch Sensing Circuit

50: switch circuit

M: electrode matrix

Claims (25)

A keyboard composite electrode module, comprising: an electrode carrying structure; a light source circuit disposed on the electrode carrying structure, the light source circuit comprising a plurality of light sources; and a touch sensing circuit disposed on the electrode carrying structure, the touch The sensing circuit includes: a plurality of first electrode series extending along a first direction and arranged at intervals in a second direction; a plurality of second electrode series extending along the second direction and arranged at intervals in the first direction, Alternately arranged in series with the plurality of first electrodes, wherein a plurality of key projection areas are defined on the keyboard composite electrode module, each of the key projection areas covers the same key surface electrode pattern, and the key surface electrode pattern includes the plurality of key projection areas One of the light sources. The keyboard composite electrode module according to claim 1, wherein the plurality of first electrode series and the plurality of second electrode series are alternately arranged to form a plurality of electrode arrays arranged along the first direction and the second direction, in Two adjacent electrode matrices in the second direction are not aligned, each of the electrode matrices corresponds to a key projection area, and in each of the key projection areas, the corresponding positions of the light sources in the electrode matrix are the same. The keyboard composite electrode module according to claim 2, wherein a key gap layout projection is defined on the complex electrode matrix corresponding to each key projection area, the key gap layout projection surrounds the corresponding key projection area, and each key gap The layout projections cover the same bond gap electrode pattern. The keyboard composite electrode module according to claim 1, wherein the light source circuit comprises a plurality of light source lines for electrically connecting the plurality of light sources, the plurality of light source lines extending along the first direction and spaced in the second direction, The plurality of light source lines and the plurality of first electrode series are arranged at intervals and interlaced with the plurality of second electrode series. The keyboard composite electrode module according to claim 4, wherein the electrode carrying structure comprises a first substrate, and the light source circuit, the plurality of first electrode series and the plurality of second electrode series are arranged on the first substrate. On the same surface, and where the plurality of second electrode series, the light source circuit and the plurality of first electrode series are staggered and overlapped, an insulating layer is disposed between the plurality of second electrode series and the light source circuit and the plurality of between the second electrode series and the plurality of first electrode series. The keyboard composite electrode module according to claim 5, wherein the light source circuit or the plurality of first electrode series are alternately overlapped with the plurality of second electrode series, the light source circuit and the plurality of first electrode series. located between the plurality of second electrode series and the first substrate. The keyboard composite electrode module according to claim 5, wherein the key surface electrode pattern further comprises a first trigger conductive portion and a second trigger conductive portion, wherein the first trigger conductive portion and the second trigger conductive portion are respectively Extending from a first electrode series and a second electrode series, the first triggering conductive portion and the second triggering conductive portion are connected through a conductive connection portion. The keyboard composite electrode module according to claim 7, wherein the electrode carrying structure further comprises a second substrate disposed relative to the first substrate and a spacer layer sandwiched between the first substrate and the second substrate , the key surface electrode pattern includes the conductive connection part, and the conductive connection part is formed on the second substrate, the spacer layer has an opening, the first trigger conductive part and the second trigger conductive part correspond to the opening and the conductive part The connecting parts are arranged at relative intervals, and the part of the keyboard composite electrode module corresponding to the first triggering conductive part and the second triggering conductive part can be pressed, so that the conductive connecting part is electrically connected to the first triggering conductive part and the second triggering conductive part through the opening. the second trigger conductive part. The keyboard composite electrode module according to claim 7, wherein the conductive connection portion includes a contact surface, the first trigger conductive portion and the second trigger conductive portion respectively include at least one contact line, The first trigger conductive portion and the second trigger conductive portion are electrically connected to each other through the contact surface and the contact lines. The keyboard composite electrode module according to claim 4, wherein the electrode carrying structure comprises a first substrate, a second substrate disposed relative to the first substrate, and sandwiched between the first substrate and the second substrate a spacer layer therebetween, the plurality of first electrode series and the light source circuit are formed on a first upper surface of the first substrate, and the plurality of second electrode series are formed on a second lower surface of the second substrate on the surface. The keyboard composite electrode module of claim 10, wherein the key surface electrode pattern further comprises a first trigger conductive portion and a second trigger conductive portion, wherein the first trigger conductive portion and the second trigger conductive portion are respectively Extending from a first electrode series and a second electrode series, the spacer layer has an opening, the first triggering conductive part and the second triggering conductive part are arranged at a relative interval corresponding to the opening, and the keyboard composite electrode mold Parts corresponding to the first triggering conductive portion and the second triggering conducting portion can be pressed, so that the first triggering conducting portion and the second triggering conducting portion approach each other through the opening. The keyboard composite electrode module according to claim 11, wherein the first trigger conductive portion and the second trigger conductive portion respectively comprise at least one contact line, and the first trigger conductive portion and the second trigger conductive portion are connected by the These contact lines are in contact and are electrically connected to each other. The keyboard composite electrode module as claimed in claim 12, wherein the contact line is one of a straight line, an arc shape, a ring shape, a rectangle shape and a zigzag shape or any combination thereof. The keyboard composite electrode module according to claim 4, wherein the electrode carrying structure comprises a substrate, the light source circuit and the touch sensing circuit are respectively disposed on opposite surfaces of the substrate, And the light provided by the plurality of light sources is transmitted from the substrate where the plurality of first electrode series and the plurality of second electrode series are not arranged. The keyboard composite electrode module as claimed in claim 1, wherein the first electrode series comprises a plurality of first main line segments and a plurality of first branch line segments, the plurality of first main line segments extending along the first direction and being linearly connected to each other in series , the plurality of first branch line segments are arranged at intervals in the first direction and protrude from the plurality of first main line segments along the second direction. The keyboard composite electrode module as claimed in claim 1, wherein the second electrode series comprises a plurality of second main line segments and a plurality of second branch line segments, the plurality of second main line segments extending along the second direction and arranged at intervals and at intervals The first direction is staggered into two columns, and the plurality of second branch line segments are arranged at intervals along the second direction and connect adjacent second main line segments in the two columns along the first direction. The keyboard composite electrode module according to claim 1, wherein the key surface electrode patterns have the same perforation layout. A keyboard composite electrode module, comprising: a plurality of electrode arrays, which are continuously arranged along a first direction and a second direction, and two adjacent electrode arrays in the second direction are offset from each other along the first direction. And at least two electrode matrices that are not aligned along the second direction and are not aligned in the second direction are identical to each other, and each electrode matrix includes: a plurality of first electrode string segments; and a plurality of second electrode string segments, and the first electrode series sections are alternately arranged with each other; and a light source circuit including a plurality of light source lines and a plurality of light sources arranged in the plurality of light source lines, the plurality of light sources are arranged in the plurality of electrode arrays one-to-one. The keyboard composite electrode module according to claim 18, wherein the relative positions of each of the light sources in the corresponding electrode matrix are the same. A keyboard composite electrode module, comprising a complex electrode matrix and a light source circuit, the complex electrode matrix corresponds to complex key projection areas one-to-one, the complex electrode matrix is arranged along a first direction and a second direction, in the second At least two electrode matrices that are not aligned in the direction are the same as each other, the electrode matrix includes a plurality of electrodes arranged at intervals with the same electrode spacing, wherein the size of the electrodes in the second direction is a key center distance of the key projection areas , the electrode spacing, and the function of the number of electrode rows and columns covered by the key center distance, and the light source circuit includes a plurality of light sources, which are arranged one-to-one in the complex electrode matrix, and each of the light sources in the electrode matrix. The relative positions are the same. The keyboard composite electrode module according to any one of claims 18 to 20, wherein at least two of the electrode arrays that are not aligned in the second direction have the same perforation layout, and the perforation layout includes at least one perforation located in within the electrode matrix. A light-emitting touch keyboard, comprising: a base plate; a plurality of key caps arranged above the base plate; the keyboard composite electrode module according to any one of claim 1, 18 and 20, arranged on the base plate and the plurality of key caps Between, the keyboard composite electrode module senses the non-pressing movement of an object on the plurality of keycaps and provides light to be emitted from the plurality of keycaps; and a plurality of supporting mechanisms correspondingly connected between the base plate and the plurality of keycaps , so that the keycap can move up and down relative to the bottom plate and the keyboard composite electrode module through the corresponding support mechanism. The light-emitting touch keyboard according to claim 22, wherein the keyboard composite electrode module further comprises a switch circuit, the switch circuit comprises a plurality of key switches corresponding to the plurality of key caps, and each of the plurality of key switches consists of a first electrode string A row and a second electrode series are formed, and are turned on by a conductive connection part to generate a trigger signal. The light-emitting touch keyboard as claimed in claim 23, further comprising a plurality of elastic reset elements disposed between the base plate and the plurality of keycaps, wherein the conductive connection portion is disposed on the corresponding elastic reset elements. The light-emitting touch keyboard according to claim 23, wherein the keyboard composite electrode module includes the conductive connection portion, and the conductive connection portion and the corresponding key switch are arranged at intervals opposite to each other, when the key cap is pressed, the key cap The keyboard composite electrode module is driven to deform, so that the key switch is triggered by the conductive connection part.

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