TWM486089U - Light emitting keyboard and light emitting structure thereof - Google Patents

Description

Illuminated keyboard and its light emitting structure

The present invention relates to a keyboard, and more particularly to an illuminated keyboard and a light emitting structure thereof.

In terms of current personal computer usage habits, the keyboard is one of the indispensable input devices for entering text, symbols or numbers. When the user selects the keyboard, the keyboard should have the basic input function, and the visual effect of the keyboard is also valued by the user. For example, there are currently available illuminated keyboards on the market that can be used at night or in low-light areas, in addition to being visually appealing to the user. Therefore, the illuminated keyboard is more competitive in the market. However, in today's various manufacturers, in response to the trend of thin and light specifications of electronic devices, it is necessary to vigorously research and develop how to reduce the overall thickness of the illuminated keyboard.

In general, the conventional setting method of the illuminating keyboard is to set the illuminating module (for example, including a visor, a light guide plate, a light emitting diode, and a reflector) to the button module (for example, including a key cap and a scissor bracket) Under the elastic member, the membrane switch circuit board and the bottom plate, the common thickness specification of the light-emitting module is 0.4-0.5 mm, and the light-emitting diode with a height of 0.45 mm is used as the light source. However, in order to meet the thickness requirements of thin keyboards in the future (for example, 0.25-0.3mm), there are roughly two ways for each manufacturer, one is to use a relatively low-level light-emitting diode, and the other is to use a light-emitting module above. The bottom plate of the button module is opened such that a portion of the light emitting diode can protrude from the opening.

However, regardless of the above design methods, there are still many shortcomings and inconveniences. For example, a lower-level LED (for example, 0.3 mm) is used, which is not only expensive but also has a lower luminance than a conventional 0.45 mm LED; however, if the bottom plate above the light-emitting module is opened, In order to expose the light-emitting diodes in vitro, this will not only lower The mechanical strength of the low bottom plate makes the bottom plate unable to provide the original supporting force of the supporting structure for supporting the key cap above it, and the convex light emitting diode causes a problem of light leakage. In addition, if a light-emitting diode of 0.45 mm height is used, and the arrangement of the bottom plate is not provided, the thickness of the entire keyboard cannot be effectively reduced, and there is a possibility that the light-emitting two body may be glued between the bottom plate, the light-shielding plate and the light guide plate. The layers are stretched open, causing problems with light leakage. In view of the above-mentioned many technical problems and their inconvenience, the author has devoted himself to researching and cooperating with the use of academics, and has proposed a novel that is reasonable in design and effective in improving the above problems.

The main purpose of the present invention is to provide an illuminated keyboard and a light-emitting structure thereof, which are used to solve the problems in the prior art, in the process of thinning the illuminated keyboard, due to the inability of the height of the light-emitting unit to be effectively reduced and set. problem.

In order to achieve the above object, the present invention provides an illuminated keyboard comprising: a button module and a light emitting structure. The button module comprises a membrane switch circuit board, a plurality of support structures, a plurality of key caps and a bottom plate, the membrane switch circuit board, the support structures and the key caps are respectively arranged on the bottom plate, and the bottom plate corresponds to each The position of the keycap has a plurality of bottom plate perforations. The light emitting structure is disposed under the bottom plate, and the light emitting structure comprises a light guide plate and a light emitting module. The light guide plate is disposed under the button module, and the light guide plate has at least one first receiving hole, and each of the first receiving holes corresponds to a position between the two bottom plate perforations. The at least one light emitting module comprises a thin film circuit board and at least one light emitting unit. The thin film circuit board includes a control circuit, and at least one light emitting unit is disposed on the thin film circuit board and electrically connected to the control circuit. The thin film circuit board is disposed between the button module and the light guide plate, and the at least one light emitting unit is received in the first receiving hole of the light guide plate. The light beam generated by the at least one light-emitting unit is incident on the light guide plate, and is guided by the light guide plate to be perforated by the bottom plates to illuminate the key caps.

In order to achieve the above object, the present invention provides a light-emitting structure for being disposed under a button module of an illuminated keyboard, the light-emitting structure comprising: a light guide plate and at least one light-emitting module. The light guide plate has at least one first receiving hole, and the light guide plate has an upper surface and an upper surface The lower surface of the surface, and the upper surface is disposed below the button module. The at least one light emitting module comprises a thin film circuit board and at least one light emitting unit, wherein the thin film circuit board comprises a control circuit, at least one light emitting unit is disposed on the thin film circuit board, and is electrically connected to the control circuit, and the thin film circuit board is disposed on the button module And the at least one light emitting unit is disposed in the first receiving hole of the light guide plate. The light beam generated by the at least one light-emitting unit is incident on the light guide plate and guided by the light guide plate to illuminate the plurality of key caps of the button module.

The illuminated keyboard and its illumination structure of the present invention have the following advantages:

1. The illuminated keyboard and the light-emitting structure thereof are arranged between the light-guide plate and the bottom plate of the button module, so that the light-emitting unit disposed on the film circuit board can be placed in the guide In the first accommodating hole of the light plate, the surface adjacent to the light guide plate and the button module is a flat surface, so that the light guide plate having the convex shape of the light guide plate can be solved in the prior art, and the button needs to be pressed. The bottom plate of the module is provided with a perforation to accommodate various technical problems caused by the convex LED, for example, the problem that the bottom plate cannot effectively provide sufficient support force of the button module disposed thereon, or The convex light-emitting diode may open the problem of the glue layer between the light guide plate and the bottom plate of the button module.

2. The illuminated keyboard and the light-emitting structure of the present invention, since the light-emitting unit does not protrude from the light guide plate and the bottom of the button module, the light guide plate provided with the light-emitting module can be directly attached to any form. On the bottom plate of the button module, the bottom plate of the button module is not required to be separately opened to avoid the perforation of the light-emitting unit protruding from the light guide plate and the bottom plate. The ground improves the efficiency of the overall production assembly, and can directly solve the problems that the light-emitting unit and the bottom plate cannot directly adhere to each other due to the fact that some of the light-emitting units are convexly protruded upward and outward, and the glue layer is easily opened.

In order to further understand the features and technical contents of this creation, please refer to the following detailed description and drawings regarding this creation, however, the drawings only provide references and explanations. Used, not to limit the creation of this creation.

1‧‧‧ illuminated keyboard

2‧‧‧Lighting structure

10‧‧‧Key Module

11‧‧‧Support frame

111‧‧‧Perforation

12‧‧‧Key Cap

13‧‧‧Support structure

14‧‧‧Flexible parts

15‧‧‧ Membrane Switch Board

16‧‧‧floor

161‧‧‧Bottom plate perforation

162‧‧‧colloid

20‧‧‧Light guide

201‧‧‧First accommodating hole

202‧‧‧Upper surface

203‧‧‧ lower surface

21‧‧ ‧ shading film

211‧‧‧Second accommodating hole

212‧‧‧Light perforation

22‧‧‧reflector

221‧‧‧ escaping department

222‧‧‧ third accommodating hole

23‧‧‧ opaque bottom plate

231‧‧‧Outer convex

24‧‧‧ cover

25‧‧‧ opaque bottom plate

251‧‧‧protrusion

252‧‧‧reflective layer

30‧‧‧Lighting module

31‧‧‧Film board

311‧‧‧Control circuit

312‧‧‧Fitting Department

32‧‧‧Lighting unit

FIG. 1 is a schematic cross-sectional view of the illuminated keyboard of the present invention.

2 is a schematic exploded view of a first embodiment of the light-emitting structure of the present invention.

2A is a schematic view of a first embodiment of the light-emitting structure of the present invention.

Fig. 3 is a schematic view showing the assembly of the first embodiment of the light-emitting structure of the present invention.

4 is a cross-sectional view of the light-emitting module and the light guide plate cut along the line A-A of FIG. 3.

Fig. 5 is a schematic cross-sectional view showing a second embodiment of the light-emitting structure of the present invention.

Figure 6 is a cross-sectional view showing another aspect of the second embodiment of the light-emitting structure of the present invention.

Fig. 7 is a schematic cross-sectional view showing a third embodiment of the light-emitting structure of the present invention.

Please refer to FIG. 1 , which is a cross-sectional view of the illuminated keyboard of the present invention. As shown in the figure, the illuminated keyboard 1 comprises: a button module 10 and a light emitting structure 2. The button module 10 is disposed on the light guide plate 20. The button module 10 includes a support frame 11, a plurality of keycaps 12, a plurality of support structures 13, a plurality of elastic members 14, a membrane switch circuit board 15, and a bottom plate 16. The support frame 11 has a plurality of perforations 111, and a plurality of keycaps 12 are movably disposed in each of the perforations 111. Each support structure 13 is used to support the keycap 12, which may be a stiff plastic sheet structure or a scissor foot structure or the like. The elastic member 14 is disposed under the keycap 12 for providing a force for returning to the original position after the keycap 12 is pressed, and each of the elastic members 14 is correspondingly disposed on each of the conductive contacts on the membrane switch circuit board 15 (not shown) The position is such that when the keycap 12 is pressed to move the elastic member 14 downward, the conductive contacts are turned on to generate corresponding button signals. Each of the elastic members 14 may be a metal dome or a plastic dome (Rubber Dome) as shown. The above description and the button module 10 shown in FIG. 1 are merely exemplary examples, and may be changed according to requirements in practical applications, and are not limited thereto.

The bottom plate 16 has a plurality of bottom plate through holes 161 corresponding to the positions of the key caps 12 for providing a light beam generated by the light emitting module 30 to illuminate the key cap 12; wherein the key cap 12 can be designed as a whole according to requirements. It can transmit light, or part of the area (for example, the area of the font or symbol marked on the outside of the keycap 12) can transmit light. In practical applications, the position, size, and number of the bottom plate perforations 161 can be designed according to requirements. For example, as shown in FIG. 1 , one or more bottom plate perforations are disposed under the central portion of each of the key caps 12 . 161, or it may be that the bottom plate 16 is provided with at least one bottom plate through hole 161 corresponding to the periphery of the keycap 12.

The light emitting structure 2 is disposed under the bottom plate 16 , and the light emitting structure 2 includes a light guide plate 20 and a light emitting module 30 . The light guide plate 20 is disposed on one side of the bottom plate 16 with respect to the membrane switch circuit board 15, and the light guide plate 20 includes at least one first receiving hole 201, and the first receiving hole 201 is disposed at a position corresponding to the two bottom plate perforations. 161 rooms. The first receiving hole 201 can be designed as a perforation or a blind hole according to actual requirements, and the perforation is taken as an example, but not limited thereto.

In practical applications, the top surface of the light guide plate 20 (the surface adjacent to the bottom plate 16) may be provided with a light shielding film, a light shielding plate or a coating related light shielding layer on the bottom surface of the light guide plate 20 (relative to the abutment). The reflective sheet, the reflective plate or the associated reflective layer is disposed on the surface of the other side of the bottom plate 16; in addition, the light guide plate 20 may have an associated light guiding structure corresponding to the position of each of the bottom plate through holes 161, for example, a guide Light ink (not shown), a toothed microstructure (not shown), etc., guide light to be emitted toward the bottom plate perforation 161.

The light emitting module 30 includes a flexible printed circuit (FPC) 31 and at least one light emitting unit 32. The at least one light emitting unit 32 may be a light emitting diode disposed on the thin film circuit board 31 and electrically connected to a control circuit (not shown) on the thin film circuit board 31. The control circuit of the thin film circuit board 31 can electrically connect the external power supply unit and the control unit to provide power required by the light emitting unit 32, and accordingly control the related light emitting operation of the light emitting unit 32.

The light guide plate 20 is disposed on the bottom plate 16, the thin film circuit board 31 of the light emitting module 30 is disposed between the light guide plate 20 and the bottom plate 16, and the light emitting unit 32 is disposed on the thin film circuit board 31. And correspondingly received in the first receiving hole 201 of the light guide plate 20, whereby the light beam emitted by the light emitting unit 32 can be guided through the light guide plate 20, and is emitted by the bottom plate through hole 161 to illuminate the corresponding light. Key cap 12. In a preferred application, the light guide plate 20 is disposed under the bottom plate 16, and at least one first receiving hole 201 of the light guide plate 20 may be correspondingly located between the two bottom plate holes 161; the size of the thin film circuit board 31 may be It is less than the pitch of the two bottom plate perforations 161.

Specifically, the light guide plate 20 and the bottom plate 16 of the button module 10 have only a glue layer 162 and a thin film circuit board 31 of the light-emitting module 30, that is, the light-emitting module 30 can be nearly flatly attached to the bottom plate 16 The light-emitting diode (light-emitting unit) protrudes from the surface of the light guide plate 20 adjacent to the bottom plate 16 so that the light-emitting module 30 cannot be directly and smoothly bonded to the bottom plate 16 , and further The problem is that the light guide plate 20 can be smoothly attached to the bottom plate 16 , and the bottom plate 16 can be provided with a perforation of the light-emitting diode (light-emitting unit) that can accommodate the convex protrusion. Further, the problem that the overall mechanical support force of the bottom plate 16 is insufficient; or the light emitted from the light-emitting unit 32 protruding from the bottom plate 16 may cause problems such as uneven light of the key cap 12 or doubt of light leakage.

It should be noted that, in the embodiment of the present invention, the opaque colloid 162 disposed on both sides of the outer periphery of the bottom plate 16 is taken as an example, but the practical application is not limited thereto, and may be between the bottom plate 16 and the light guide plate 20. Coated with a full-surface light-transmitting colloid, or may be coated with a opaque colloid of the entire surface except for the position corresponding to the bottom plate perforation 161; and, in special applications, the entire surface is coated except for the bottom plate perforation 161. The opaque colloid can also serve as a light shielding layer for the light guide plate 20 to restrict the light guide plate 20 from being led out by the position corresponding to the bottom plate through hole 161. In particular, the thickness of the light guide plate, the membrane switch circuit board, and the light-emitting unit in the drawings is only exemplary, and the actual application can be selected according to requirements, and there is no limitation thereto.

[First Embodiment]

Please refer to FIG. 2 to FIG. 4 together, which is a first embodiment of the light-emitting structure of the present invention. In particular, the light-emitting structure described in this embodiment corresponds to the aforementioned The light guide plate of the illuminated keyboard is combined with the light emitting module; and the embodiment particularly emphasizes that the light emitting structure can be directly attached to the bottom plate of each type of key module, and can be applied to various types of keys of the illuminated keyboard. Module.

As shown in FIG. 2, a light shielding sheet 21 and a reflection sheet 22 are respectively disposed on both sides of the light guide plate 20. The opaque sheet 21 has at least one second accommodating hole 211 corresponding to the at least one first accommodating hole 201 of the light guide plate 20 . As shown in FIG. 2A, the light emitting module 30 includes a thin film circuit board 31 and at least one light emitting unit 32. The thin film circuit board 31 includes a control circuit 311 and a bonding portion 312. The at least one light emitting unit 32 is disposed on the thin film circuit board 31. And the electrical connection control circuit 311; the bonding portion 312 of the thin film circuit board 31 is disposed around the outer periphery thereof for bonding to the surface of the light shielding film 21, which can be glued through any form. In the actual implementation, the thin film circuit board 31 may include a circuit connecting portion (not shown), which may be provided with a plurality of connecting wires and connecting terminals for electrically connecting with the external power supply unit and the control unit.

In detail, the two corresponding surfaces of the light guide plate 20 may be defined as an upper surface 202 and a lower surface 203, respectively, wherein the upper surface 203 is adjacent to the button module (not shown, please refer to FIG. 1). s surface. The upper surface 202 of the light guide plate 20 may be provided with a light shielding sheet 21 (which may also be a light shielding layer formed by coating), and the lower surface 203 may be provided with a reflection sheet 22 (which may also be formed by coating). Reflective layer). The light shielding sheet 21 corresponding to the bottom plate perforation (not shown, please refer to FIG. 1 ) may include a plurality of transparent through holes 212 for the light beam led out by the light guide plate 20 to be correspondingly projected to the bottom plate perforation, and the light shielding film 21 . The portion of the non-transparent perforation 212 can reflect the light guided by the light guide plate 20 back into the light guide plate 20, and cooperate with the reflection sheet 22 disposed on the lower surface 203 of the light guide plate 20, so that the light can be reflected and transmitted. The light perforation 212 is emitted, thereby effectively improving the utilization rate of light.

As shown in FIG. 3 (which shows an enlarged cross-sectional view of the area A in FIG. 2), the thin film circuit board 31 of the light emitting module 30 is attached to the upper surface of the light shielding film 21, and the light emitting unit is disposed on the thin film circuit board 31. 32 corresponds to the second receiving hole of the light shielding sheet 21 (not shown, please refer to FIG. 2), and is accommodated in the first receiving hole of the light guide plate 20 (Fig. In addition, please refer to FIG. 2), so that the surface of the light guide plate 20 provided with the light-emitting module 30 adjacent to the button module can be a flat surface without any convex light-emitting unit, thereby achieving The utility model can be quickly and conveniently disposed on the bottom plate of each type of button module, and at the same time, in the prior art, the light-emitting diode (light-emitting unit) protrudes from the surface adjacent to the light guide plate and the button module. And many problems brought about.

In an actual application, the appearance of the thin film circuit board 31 and the arrangement position of the light emitting unit 32 can be determined according to the design of the transparent light perforation 212 of the actual light shielding film 21 and the position of the thin film circuit board 31 which is predetermined to be disposed on the light shielding film 21. For example, as shown in FIG. 3, the thin film circuit board 31 may be designed to be linear, and its width may be less than or equal to the pitch of the two transparent through holes 212 of the light shielding film 21; The illuminating module 30, the first accommodating hole 201 and the second accommodating hole 211 may be disposed at a central portion of the visor 21 (ie, a central portion of the keyboard structure), so that the illuminating unit 32 of the illuminating module 30 can be The emitted light is guided by the light guide plate 20 of approximately equal distance to uniformly illuminate the keycaps 12. Of course, in another application, at least two sets of the light-emitting modules 30 may be disposed on either side of the light-shielding sheet 21 instead of the central portion.

As shown in FIG. 4, it is a schematic cross-sectional view of the light guide plate 20 provided with the light-emitting module 30 (a cross-sectional view cut along the A-A cutting line in FIG. 3). In a practical application, when a light-emitting diode of 0.45 mm is used as the light-emitting unit 32, it may be convex on the thinned light guide plate 20, that is, a part of the package of the light-emitting unit 32 passes through the light guide plate 20. The first receiving hole 201 is exposed, and the reflective sheet 22 disposed on the lower surface 203 of the light guide plate 20 may be formed on the lower surface 203 of the light guide plate 20 by heat fusion, so that the exposed light emitting unit 32 can be directly coated. Or the reflective sheet 22 may be in a convex manner, and a relief portion 221 is formed corresponding to the convex position of the light emitting unit 32 to accommodate the convex light-emitting unit 32, thereby effectively avoiding the convex light-emitting unit. 32 problems with light leakage occurred.

In particular, in the description and drawings of the present embodiment, a set of the light-emitting modules 30 is taken as an example, and the actual application can be changed according to requirements; and the light-shielding film shown in the drawings, The thicknesses of the light guide plate, the reflective sheet, the thin film circuit board, and the light emitting unit are merely exemplary and are not limited to the drawings.

[Second embodiment]

Please refer to FIG. 5 to FIG. 6 , which are schematic cross-sectional views of two different embodiments of the light-emitting structure of the present invention, in particular, an embodiment of a light-emitting diode with a 0.45 mm size as a light-emitting unit. . As shown in the figure, the light guide plate 20 has a first receiving hole 201; the upper surface 202 of the light guide plate 20 is provided with a light shielding sheet 21 (or a light shielding layer is formed), and includes a second receiving hole 211 and a plurality A light transmissive perforation 212 for emitting light from the light guide plate 20. The light-emitting module 30 includes a thin film circuit board 31 and a light-emitting unit 32. The thin-film circuit board 31 is disposed on the upper surface of the light-shielding sheet 21, and the light-emitting unit 32 passes through the second receiving hole 211 of the light-shielding sheet 21 and the light-guide plate 20 A hole 201 is accommodated, and a package of the partial light emitting unit 32 is exposed to the lower surface 203 of the light guide plate 20.

As shown in FIG. 5, in one embodiment, the reflective sheet 22 disposed on the lower surface 203 of the light guide plate 20 may have a third receiving hole 222, and the lower surface of the reflective sheet 22 may be provided with an impervious surface. Light base plate 23. In other words, the upper and lower surfaces of the light guide plate 20 are respectively provided with the light shielding sheet 21 and the reflection sheet 22, and the reflection sheet 22 is provided with an opaque bottom plate 23 with respect to the other side surface of the light guide plate 20; the light guide plate 20, the light shielding sheet 21 and the reflection sheet The first receiving hole 201, the second receiving hole 211 and the third receiving hole 222 are sequentially arranged. The light-emitting unit 32 is correspondingly disposed through the second accommodating hole 211, the first accommodating hole 201, and the third accommodating hole 222, and the outer portion of the light-emitting unit 32 is exposed outside the reflective sheet 22, and the transparent substrate is not opaque. The light-emitting unit 32 corresponding to the convex portion may have an outer convex portion 231 to accommodate the convex light-emitting unit 32, thereby effectively avoiding the light leakage problem that may be caused by the convex light-emitting unit 32. The outer convex portion 231 of the opaque bottom plate 23 may be formed by embossing, or the opaque bottom plate 23 may be formed by heat fusion directly on the lower surface of the reflective sheet 22, and formed directly after curing. Outer convex portion 231.

In another implementation, as shown in FIG. 6, it may be directly outside the light emitting unit 32. An opaque cover 24 is disposed at a position convex to the reflective sheet 22 to avoid the problem of light leakage caused by the convex light-emitting unit 32. The cover body 24 may be a separate member, and is adhered to the reflective sheet 22 by gluing. Alternatively, it may be a opaque colloid, and is formed directly on the convex light-emitting unit 32 and the reflective sheet 22 by heat fusion. .

[Third embodiment]

Please refer to FIG. 7, which is a cross-sectional view of another embodiment of the light-emitting structure of the present invention. As shown in the figure, the embodiment is different from the above embodiment in that the lower surface 203 of the light guide plate 20 may be provided with a light shielding bottom plate 25, and the light emitting unit 32 corresponding to the light guiding plate 20 may have a convex portion. The portion 251 and the remaining non-protrusion portion 251 of the light-shielding bottom plate 25 are formed with a reflective layer 252, whereby the light of the light guide plate 20 can be effectively reflected. In a simple manner, compared with the embodiment in which the lower surface 203 of the light guide plate 20 is provided with a reflective sheet 22 and an opaque bottom plate 23, in this embodiment, a specific example is directly utilized. The light-shielding bottom plate 25 of the reflective layer 252 is in place of the reflection sheet 22 and the opaque bottom plate 23 .

However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of patent protection of the present creation. Therefore, the equivalent changes of the present specification and the contents of the schema are all included in the right of the creation. Within the scope of protection, it is given to Chen Ming.

1‧‧‧ illuminated keyboard

2‧‧‧Lighting structure

10‧‧‧Key Module

11‧‧‧Support frame

111‧‧‧Perforation

12‧‧‧Key Cap

13‧‧‧Support structure

14‧‧‧Flexible parts

15‧‧‧ Membrane Switch Board

16‧‧‧floor

161‧‧‧Bottom plate perforation

162‧‧‧colloid

20‧‧‧Light guide

201‧‧‧First accommodating hole

30‧‧‧Lighting module

31‧‧‧Film board

32‧‧‧Lighting unit

Claims (20)

An illuminated keyboard comprising: a button module comprising a membrane switch circuit board, a plurality of support structures, a plurality of key caps and a bottom plate, the membrane switch circuit board, the support structures and the key caps respectively And the light-emitting structure is disposed under the bottom plate of the button module, and the light-emitting structure comprises: a light guide plate, wherein the bottom plate is disposed at a position corresponding to each of the key caps; The light guide plate has at least one first receiving hole, and the at least one light emitting module comprises a thin film circuit board and at least one light emitting unit, wherein the thin film circuit board includes a control circuit, The at least one light emitting unit is disposed on the thin film circuit board and electrically connected to the control circuit, the thin film circuit board is disposed between the button module and the light guide plate, and the at least one light emitting unit is disposed on the light guide plate The light beam generated by the at least one light-emitting unit is incident on the light guide plate, and is guided by the light guide plate to be perforated by each of the bottom plates to illuminate each Keycaps. The illuminating keyboard of claim 1, further comprising a visor disposed on the surface of the light guide plate corresponding to the button module, the visor having at least one corresponding to the at least one first receiving hole The light-shielding plate includes a plurality of light-transmissive perforations corresponding to the holes of the bottom plate; wherein the film circuit board of the light-emitting module is disposed between the light-shielding sheet and the bottom plate, and the at least one light-emitting unit Correspondingly disposed in the at least one first receiving hole and the at least one second receiving hole. The illuminating keyboard of claim 2, wherein the light guide plate is disposed under the bottom plate, and the at least one first receiving hole is located between two of the bottom plate perforations, and the thin film circuit board is smaller than two of the bottom plate perforations. Pitch. The illuminating keyboard of claim 2 or 3, further comprising a reflective sheet disposed on the other side of the light guide plate opposite to the light shielding sheet, and the reflective sheet corresponds to The at least one first accommodating hole has at least one third accommodating hole, and the at least one illuminating unit is disposed on the at least one first accommodating hole, the at least one second accommodating hole, and the at least one third accommodating hole In the hole. The illuminating keyboard of claim 4, further comprising an opaque bottom plate disposed on the other side of the reflective sheet with respect to the light guide plate, and the opaque bottom plate includes at least one convex portion for receiving The at least one light emitting unit partially protruding from the at least one third receiving hole is disposed. The illuminating keyboard of claim 4, further comprising at least one cover disposed on the other side of the reflective sheet with respect to the light guide plate, wherein the cover portion is convexly protruded from the at least one third receiving hole The at least one light emitting unit. The illuminating keyboard of any one of claims 1 to 3, further comprising a reflective sheet disposed on the other side of the light guide plate in contact with the button module, the reflective sheet comprising a escaping portion The at least one light emitting unit protruded from the at least one first receiving hole by the receiving portion. The illuminating keyboard of any one of claims 1 to 3, further comprising a opaque bottom plate disposed on the other side of the light guide plate in contact with the button module, the opaque bottom plate comprising a protrusion And accommodating the at least one light emitting unit protruding from the at least one first receiving hole. The illuminating keyboard of claim 8, wherein the light shielding substrate is formed with a reflective layer adjacent to a surface of the light guide plate. The illuminated keyboard of claim 1, wherein the light emitting unit is a light emitting diode having a height of 0.45 mm. A light-emitting structure is disposed under a button module of an illuminated keyboard. The light-emitting structure includes: a light guide plate having at least one first receiving hole, and the light guide plate has an upper surface and a relative The lower surface of the upper surface is disposed under the button module; and the at least one light emitting module includes a thin film circuit board and at least one light emitting unit, and the thin film circuit board includes a control circuit. At least one light emitting unit is disposed on the thin The film circuit board is electrically connected to the control circuit, the thin film circuit board is disposed between the button module and the upper surface of the light guide plate, and the at least one light emitting unit is disposed on the at least one first of the light guide plate The light beam generated by the at least one light emitting unit is incident on the light guide plate and guided through the light guide plate to illuminate the plurality of key caps of the button module. The light-emitting structure of claim 11, further comprising a light-shielding sheet disposed on the upper surface of the light-guiding plate, the light-shielding sheet having at least one second receiving hole corresponding to the at least one first receiving hole, The light shielding sheet includes a plurality of light-transmissive perforations corresponding to the key caps. The thin film circuit board of the light-emitting module is disposed between the light-shielding film and the button module, and the at least one light-emitting unit is correspondingly disposed on The at least one first receiving hole and the at least one second receiving hole. The light-emitting structure of claim 12, wherein the light guide plate is disposed under the bottom plate, and the at least one first receiving hole is located between the two of the bottom plate perforations, and the thin film circuit board is smaller than two of the bottom plate perforations. Pitch. The illuminating structure of claim 12 or 13, further comprising a reflective sheet disposed on the lower surface of the light guide plate, wherein the reflective sheet has at least one third volume corresponding to the at least one first receiving hole The at least one illuminating unit is disposed in the at least one first accommodating hole, the at least one second accommodating hole and the at least one third accommodating hole. The illuminating structure of claim 14, further comprising an opaque bottom plate disposed on the lower surface of the light guide plate, wherein the opaque bottom plate comprises at least one convex portion for accommodating the portion to be convex The at least one third accommodating hole of the at least one light emitting unit. The light emitting structure of claim 14, further comprising at least one cover disposed on the lower surface of the light guide plate to cover the at least one light emitting unit partially protruding from the at least one third receiving hole . The light emitting structure according to any one of claims 11 to 13, further comprising a reflective sheet disposed on the lower surface of the light guide plate, the reflective sheet comprising a evasive And accommodating the at least one light emitting unit protruding from the at least one first receiving hole. The light-emitting structure according to any one of claims 11 to 13, further comprising a light-shielding bottom plate disposed on the lower surface of the light guide plate, the light-shielding bottom plate comprising a protruding portion for accommodating the portion to be convex The at least one light emitting unit of the at least one first receiving hole. The light-emitting structure of claim 18, wherein the light-shielding substrate is formed with a reflective layer adjacent to a surface of the light guide plate. The light emitting structure according to claim 11, wherein the light emitting unit is a light emitting diode having a height of 0.45 mm.