Backlight module for luminous keyboard

Abstract

The invention relates to a backlight module for a light-emitting keyboard, the light-emitting keyboard comprises a first key and a second key, and a key gap area is arranged between the first key and the second key. The backlight module for the luminous keyboard comprises a shading plate, a light guide plate and a lamp plate which are stacked from top to bottom. The lamp panel has a light-emitting unit. The light shielding plate is provided with a light reducing pattern corresponding to the first key so as to shield light. The backlight module is provided with a colored material covering layer, and the colored material covering layer is arranged on the shading plate or the light guide plate and overlapped in the key gap area in the longitudinal direction. Light of the light-emitting unit is guided by the light guide plate to pass through the side of the dimming pattern and emit first colored light upwards from the internal light-transmitting area of the first key. Light of the light-emitting unit is guided by the light guide plate to pass through the colored material coating and emit second colored light different from the first colored light upwards from the inner light-transmitting area and the boundary of the second heat dissipation key. The backlight modules corresponding to some keys on the luminous keyboard are provided with the colored material coatings, so that the luminous keyboard has the special effect of colored light emission.

Description

TECHNICAL FIELD

[0001] The present application relates to a backlight module, and more particularly to a backlight module for a light-emitting keyboard. BACKGROUND

[0002] With the development of technology, the design of keyboards is becoming more and more diversified. When choosing a keyboard, in addition to the basic input function, the visual effect of the keyboard is also valued by the user. At present, light-emitting keyboards have been introduced on the market, which not only attract users visually, but also can be used at night or in places with insufficient light. If the existing light-emitting keyboard is applied to a thin computing device, a large number of components are stacked in the narrow space of the computing device, making the heat dissipation problem more and more prominent. In addition, with the progress of technology, the computing device also has specific functions such as artificial intelligence assistance. Therefore, in order to improve the heat dissipation efficiency of the computing device and adapt to its specific functions, the configuration of the embedded keyboard module also needs to be adjusted accordingly. In addition, if the existing light-emitting keyboard wants to achieve the backlight effect of multiple colors, it currently needs to set multiple light-emitting units in the keyboard that can emit different colors of light. However, this method has the problems of more complex process and higher cost. SUMMARY

[0003] The purpose of the present application is to provide a backlight module for a light-emitting keyboard to solve the above problems.

[0004] According to one aspect of the present application, the present application provides a backlight module for a light-emitting keyboard, the light-emitting keyboard comprising a first key and a second key, the first key and the second key having a key gap area therebetween, the backlight module comprising: a light plate having a light-emitting unit; a light guide plate; and a light shielding plate, wherein the light shielding plate, the light guide plate and the light plate are stacked from top to bottom, the light shielding plate having a light reduction pattern corresponding to the first key to shield light; wherein the backlight module has a colored material coating, the colored material coating being provided on the light shielding plate and / or the light guide plate and overlapping the key gap area in the longitudinal direction, the light of the light-emitting unit being guided by the light guide plate to pass from the side of the light reduction pattern and emit first color light upward from the internal light transmission area of the first key, the light of the light-emitting unit being guided by the light guide plate to pass through the colored material coating and emit second color light different from the first color light upward from the internal light transmission area and the boundary of the second key.

[0005] According to one aspect of the present application, the present application provides another backlight module for a light-emitting keyboard, the light-emitting keyboard comprising a first key and a second key, the backlight module comprising: a light plate having a light-emitting unit; a light guide plate; and a light blocking plate, wherein the light plate, the light guide plate and the light blocking plate are stacked from top to bottom; wherein the backlight module has at least two through channels respectively symmetrically corresponding to the first button and the second button and penetrating the light plate, the light guide plate and the light blocking plate, peripheries of the at least two through channels are respectively provided with light reduction patterns to shield light, at least two diffusion patterns are provided at adjacent sides of the at least two light reduction patterns corresponding to the peripheries of the at least two through channels to guide light to illuminate the first button and the second button, the at least two heat reduction optical pattern groups respectively corresponding to the first button and the second button have the same pattern; wherein the backlight module has a colored material coating, the colored material coating is provided on the light blocking plate and / or the light guide plate and longitudinally overlaps the second button, light of the light emitting unit is guided by the light guide plate to pass by the side of the light reduction pattern corresponding to the first button and to emit first color light upward from the internal light transmission area of the first button, light of the light emitting unit is guided by the light guide plate to pass through the colored material coating and to emit second color light different from the first color light upward from the internal light transmission area and the boundary of the second button.

[0006] According to an aspect of the present application, the present application provides still another backlight module for a light emitting keyboard, the light emitting keyboard comprising a first button and a second button, the backlight module comprising: a light plate having a light emitting unit; a light guide plate; and a light blocking plate, wherein the light blocking plate, the light guide plate and the light plate are stacked from top to bottom, the light blocking plate has a light reduction pattern corresponding to the first button to shield light; wherein the backlight module has a colored material coating, the colored material coating longitudinally overlaps the second button, light of the light emitting unit is guided by the light guide plate to pass by the light reduction pattern and to emit first color light upward from the internal light transmission area of the first button, light of the light emitting unit is guided by the light guide plate to pass through the colored material coating and to emit second color light different from the first color light upward from the internal light transmission area of the second button.

[0007] As an optional technical solution, light of the light emitting unit is guided by the light guide plate to pass through the colored material coating and to emit the second color light upward from the boundary of the second button.

[0008] As an optional technical solution, the light blocking plate has a light blocking frame defining a light transmission area, the colored material coating longitudinally overlaps the light transmission area.

[0009] As an optional technical solution, the colored material coating longitudinally overlaps the internal light-transmitting region of the second key.

[0010] As an optional technical solution, the first key and the second key are arranged on a bottom plate of the light-emitting keyboard, the backlight module is arranged below the bottom plate, the bottom plate has a plurality of bottom plate holes, and the colored material coating longitudinally overlaps the bottom plate holes.

[0011] As an optional technical solution, the light-shielding plate has a light-transmitting portion and a shielding portion, the light-transmitting portion and the shielding portion are stacked, and the colored material coating longitudinally overlaps the light-transmitting portion and the shielding portion.

[0012] As an optional technical solution, the first key and the second key are arranged on a bottom plate of the light-emitting keyboard, the backlight module is arranged below the bottom plate, and the colored material coating longitudinally overlaps a support frame of the bottom plate.

[0013] As an optional technical solution, the colored material coating is formed on an upper surface and / or a lower surface of the light-shielding plate.

[0014] As an optional technical solution, the colored material coating is formed on an upper surface and / or a lower surface of the light-shielding plate.

[0015] In summary, the present application configures a colored material coating on the backlight module corresponding to some keys of the light-emitting keyboard. In this way, the light color of the light from the same light-emitting unit of the backlight module can be changed after passing through the colored material coating, thereby making the light-emitting keyboard have the special effect of colored light emission without the need to arrange multiple light-emitting units emitting different light colors in the keyboard.

[0016] The present application will be described in detail below in combination with the drawings and specific embodiments, but is not limited to the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] FIG. 1 A schematic view of a light-emitting keyboard according to an embodiment of the present application.

[0018] FIG. 2 A partial cross-sectional view of the light-emitting keyboard in FIG. 1

[0019] FIG. 3 A partial exploded view of the light-emitting keyboard in FIG. 1

[0020] FIG. 4 A partial top view of the light-emitting keyboard in FIG. 1

[0021] FIG. 5 FIG. 1 ​​​​partial top view of the lighted keyboard in one perspective.

[0022] FIG. 6 is a top view of the backlight module and the specific function key of the lighted keyboard according to another embodiment of the present application. FIG. 1 is a partial top view of the lighted keyboard in one perspective.

[0023] FIG. 7A is a top view of the backlight module and the specific function key of the lighted keyboard according to another embodiment of the present application.

[0024] FIG. 7B is a partial top view of the lighted keyboard in one perspective. FIG. 7A is a partial top view of the lighted keyboard in one perspective.

[0025] FIG. 8A is a top view of the backlight module and the specific function key of the lighted keyboard according to another embodiment of the present application.

[0026] FIG. 8B is a partial top view of the lighted keyboard in one perspective. FIG. 8A is a partial top view of the lighted keyboard in one perspective.

[0027] FIG. 9A is a top view of the backlight module and the specific function key of the lighted keyboard according to another embodiment of the present application.

[0028] FIG. 9B is a partial top view of the lighted keyboard in one perspective. FIG. 9A is a partial top view of the lighted keyboard in one perspective.

[0029] FIG. 10A is a top view of the backlight module and the specific function key of the lighted keyboard according to another embodiment of the present application.

[0030] FIG. 10B is a partial top view of the lighted keyboard in one perspective. FIG. 10A is a partial top view of the lighted keyboard in one perspective.

[0031] FIG. 11A-11C is a schematic diagram of the operation mechanism of the computing device in response to the embodiment of the specific function key.

[0032] FIG. 12 is a schematic diagram of the connection architecture of the lighted keyboard and the specific function key thereof and the computing device system.

[0033] FIG. 13A is a top view of the backlight module and the specific function key of the lighted keyboard according to another embodiment of the present application.

[0034] FIG. 13B is a partial top view of the lighted keyboard in one perspective. FIG. 13A is a partial top view of the lighted keyboard in one perspective.

[0035] FIG. 14A A top view of a lighted keyboard according to another embodiment of the present application.

[0036] FIG. 14B A lighted keyboard according to the embodiment of the present application. FIG. 14A A partial cross-sectional view of the lighted keyboard according to the embodiment of the present application.

[0037] FIG. 15A A top view of a lighted keyboard according to another embodiment of the present application.

[0038] FIG. 15B A lighted keyboard according to the embodiment of the present application. FIG. 15A A partial cross-sectional view of the lighted keyboard according to the embodiment of the present application.

[0039] FIG. 16A A top view of a lighted keyboard according to another embodiment of the present application.

[0040] FIG. 16B A lighted keyboard according to the embodiment of the present application. FIG. 16A A partial cross-sectional view of the lighted keyboard according to the embodiment of the present application. DETAILED DESCRIPTION

[0041] Referring to FIG. 1 , FIG. 1 A schematic view of a lighted keyboard LKB according to an embodiment of the present application.

[0042] As shown in FIG. 1 , there are heat generating elements HE (e.g., integrated circuits or electronic components), a fan F and a heat pipe HP below the lighted keyboard LKB, and heat dissipation arrangements are required at the heat generating region HR where the heat generating elements HE, the fan F and the heat pipe HP overlap with the lighted keyboard LKB. The lighted keyboard LKB comprises a backlight module BLM and a plurality of heat dissipation keys KS. The backlight module BLM is provided with a bottom plate SUP, and the plurality of heat dissipation keys KS are arranged on the bottom plate SUP. Generally, the plurality of heat dissipation keys KS can comprise square keys and multiple keys (e.g., space bar). It should be noted that the number, size and arrangement of the heat dissipation keys KS can be determined according to actual application, and are not limited to the embodiments shown in the drawings. The backlight module BLM comprises a light plate LCB, a light guide plate LGP and a light shielding plate SS. The light plate LCB, the light guide plate LGP and the light shielding plate SS are arranged in a stack, i.e., the light guide plate LGP is arranged on the light plate LCB, and the light shielding plate SS is arranged on the light guide plate LGP.

[0043] Referring to FIG. 2-3 , FIG. 2 A cross-sectional view of a partial region T1 of the lighted keyboard LKB in FIG. 1 , FIG. 3 A cross-sectional view of a partial region T1 of the lighted keyboard LKB in FIG. 1A layered exploded view of a single heat-dissipating key KS of a light keyboard LKB in the present embodiment, wherein FIG. 3 The support device SSR, the trigger TE and the return RE are omitted.

[0044] In the present embodiment, at least one light-emitting unit LED (e.g., a light-emitting diode) on the light panel LCB of the backlight module BLM corresponds to each heat-dissipating key KS on the light keyboard LKB. In other possible embodiments, a light bar on the light panel LCB of the backlight module BLM corresponds to multiple heat-dissipating keys KS on the light keyboard LKB. The backlight module BLM can have multiple through-passages PC to respectively and symmetrically correspond to the multiple heat-dissipating keys KS. The through-passages PC pass through the light panel LCB, the light guide plate LGP and the light shield plate SSR. As shown in FIG. 1, two through-passages PC correspond to a single heat-dissipating key KS, but this is not a limitation. The through-passages PC also pass through the key circuit board MEM, the bottom plate SUP and the reflection layer REF, i.e., the through-passages PC are formed by the perforations of the respective layers of the key circuit board MEM, the bottom plate SUP, the light shield plate SSR, the light guide plate LGP, the reflection layer REF and the light panel LCB stacked along the Z direction, wherein the perforations at least partially overlap, and the perforation of the light guide plate LGP can be larger than the perforations of the reflection layer REF and the light shield plate SSR. In this way, the through-passages PC can serve as heat-dissipating channels for the heat-generating region HR. FIG. 2

[0045] The heat-dissipating key KS includes a key cap KCC, a support device SSR, a key circuit board MEM and a bottom plate SUP. The key cap KCC is disposed relative to the bottom plate SUP. The key cap KCC has an internal light-transmitting region KC0 for light rays of the light-emitting unit LED to project out and illuminate characters on the key cap KCC. The key cap KCC also has multiple external light-shielding regions KC1 adjacent to the internal light-transmitting region KC0. As shown in FIG. 2, the positions of the external light-shielding regions KC1 can correspond to the positions of the through-passages PC, so that the through-passages PC are located below the light-shielding regions, thereby improving the upward light leakage. The support device SSR is disposed between the key cap KCC and the bottom plate SUP. When the key cap KCC is pressed, the key cap KCC moves vertically along with the support device SSR towards the bottom plate SUP. In addition, a return RE, e.g., a rubber dome, is provided between the key cap KCC and the bottom plate SUP, but this is not a limitation. The main bodies of the key cap KCC, the support device SSR, the return RE, the key circuit board MEM and the bottom plate SUP, etc. can be made of non-reflective / low-reflective or light-absorbing materials, thereby reducing the downward light reflection. FIG. 2

[0046] ​​The key circuit board MEM is disposed above the backlight module BLM, and the key circuit board MEM has switch pads SP corresponding to the trigger elements TE of the heat dissipation keys KS. The switch pads SP are, for example, membrane switches, but are not limited thereto. In the present embodiment, the key circuit board MEM includes a circuit portion EC, a plurality of circuit board holes MEMH, and the switch pads SP. The circuit board holes MEMH constitute a part of the through channel PC. The switch pads SP are connected to the circuit portion EC and are located between the circuit board holes MEMH. In addition, the key circuit board MEM can be coated with a light-absorbing material around the through channel PC, thereby improving the upward light leakage.

[0047] Each of the heat dissipation keys KS includes a part of a bottom plate SUP disposed between the key circuit board MEM and the backlight module BLM. In the present embodiment, the bottom plate SUP can include an annular rib Sr0, a plurality of bridge ribs Sr1 connecting the annular rib Sr0 and a support frame Sf, and the support frame Sf, and the bridge ribs Sr1, the annular rib Sr0, and the support frame Sf form a plurality of bottom plate holes SUPH therebetween. The bottom plate holes SUPH on both sides constitute a part of the through channel PC. The switch pads SP of the key circuit board MEM are disposed corresponding to the bottom plate hole SUPH at the center of the bottom plate SUP, so that the switch pads SP can partially enter the bottom plate hole SUPH at the center of the bottom plate SUP without interfering with the light shielding plate SS and the light emitting unit LED thereunder.

[0048] The light shielding plate SS is disposed below the bottom plate SUP. In the present embodiment, the light shielding plate SS has a plurality of light shielding plate through holes SSH, a plurality of light reduction patterns LRP, and a light shielding frame SSF. The light shielding plate through holes SSH are respectively located within the light reduction patterns LRP, and the light shielding frame SSF corresponds to the support frame Sf of the bottom plate SUP. The light shielding plate through holes SSH constitute a part of the through channel PC. The periphery of the through channel PC is respectively provided with the light reduction patterns LRP of the light shielding plate SS to shield light, wherein the light reduction patterns LRP can be a ring-shaped black paint coated on the upper surface or the lower surface of the light shielding plate SS.

[0049] The light guide plate LGP is disposed below the light shield plate SS. In the present embodiment, the light guide plate LGP has a light guide hole L0, a plurality of light guide plate through holes LGPH, and a plurality of diffusion patterns DP. The light emitting unit LED can be located in the light guide hole L0. The top surface and / or the bottom surface of the light guide plate LGP near the light guide hole L0 can have adhesive around the light guide hole L0 to adhere the light shield plate SS and / or the light plate LCB, respectively. The light guide plate through holes LGPH correspond to the positions of the light shield plate through holes SSH and also form part of the through channel PC. The diffusion patterns DP of the light guide plate LGP can be formed by microstructure regions and correspond to the positions of the bottom plate holes SUPH of the bottom plate SUP so as to guide the light passing in the light guide plate LGP to be emitted upward. In a top view along the Z direction, the light reduction patterns LRP of the light shield plate SS can be disposed adjacent to the diffusion patterns DP of the light guide plate LGP to guide the light of the light emitting unit LED to illuminate the corresponding heat dissipation key KS. In addition, the light reduction patterns LRP can be a ring-shaped black paint coated on the upper surface or the lower surface of the light guide plate LGP around the periphery of the through channel PC, or the hole walls of the light guide plate through holes LGPH can be coated with light-absorbing material, or adhesive can be disposed on the upper and lower surfaces of the light guide plate through holes LGPH adjacent to the periphery of the through channel PC to improve the upward or downward light leakage of the light guide plate LGP in the through channel PC.

[0050] The light plate LCB is disposed below the light guide plate LGP and can include a reflective layer REF. In the present embodiment, the light plate LCB has a light emitting unit LED, a plurality of light plate through holes LCBH, a plurality of light reduction patterns LRP and diffusion patterns DP, and a plurality of main wires HT and sub wires ST. The light emitting unit LED is connected between two sub wires ST, and the light emitting unit LED is connected between two main wires HT via the two sub wires ST. In the present embodiment, the main wires HT and the sub wires ST form a lighting circuit of the light emitting unit LED, the two main wires HT are main driving lines of the light emitting unit LED, and the two sub wires ST are sub driving lines of the light emitting unit LED. The light emitting unit LED can be a white light emitting diode or a combination of red, green, and blue light emitting diodes, depending on the actual application. Generally speaking, the main wires HT are wires with a larger cross-sectional area and can span multiple heat dissipation keys KS. The light plate through holes LCBH correspond to the positions of the light guide plate through holes LGPH and the light shield plate through holes SSH and also form part of the through channel PC. The light reduction patterns LRP can be a ring-shaped black paint formed on the reflective layer REF to be disposed around the periphery of the through channel PC. The diffusion patterns DP can also be formed by microstructure regions and can be formed on the reflective layer REF, and the diffusion patterns DP are disposed around the light reduction patterns LRP to guide the light of the light emitting unit LED to illuminate the corresponding heat dissipation key KS. FIG. 3In the illustrated embodiment, a diffusion pattern DP is formed on both the light guide plate LGP and the lamp plate LCB. In other embodiments, this is not a limitation, and the diffusion pattern DP can also be formed on either the light guide plate LGP or the lamp plate LCB. That is, the diffusion pattern DP can be formed on both the light guide plate LGP and / or the lamp plate LCB.

[0051] Please refer to the following: FIG. 4 , FIG. 4 for FIG. 1 A top view of a partial area T1 of the backlit keyboard LKB, omitting the keycaps KCC, support SSR, trigger TE, and reset RE.

[0052] This embodiment uses two adjacent heat dissipation buttons KS in a local area T1 as an example for illustration. FIG. 4 As shown, the two heat dissipation buttons KS in the local area T1 each have a keycap projection area KCCP of the keycap KCC, and the circuit sections EC of the button circuit board MEM extend across the range of each keycap projection area KCCP. Furthermore, according to... FIG. 3-4 As shown, the ribs of the base plate SUP (including the annular rib Sr0 and the bridging rib Sr1) extend across the projection area KCCP of each keycap. A single heat dissipation button KS corresponding to a through-channel PC can include a left through-channel PC-L and a right through-channel PC-R. The two left through-channels PC-L symmetrically correspond to two heat dissipation buttons KS and pass through the lamp panel LCB, light guide plate LGP, and light shield SS; similarly, the two right through-channels PC-R symmetrically correspond to two heat dissipation buttons KS and pass through the lamp panel LCB, light guide plate LGP, and light shield SS. Each pair of left and right through-channels PC-L is symmetrically arranged relative to its corresponding heat dissipation button KS. Each left through-channel PC-L has a left light-reducing pattern LRP-L around its perimeter, and two left diffusion patterns DP-L are positioned above and below each left light-reducing pattern LRP-L. Similarly, each right through-channel PC-R has a right light-reducing pattern LRP-R around its perimeter, and two right diffusion patterns DP-R are positioned above and below each right light-reducing pattern LRP-R. That is, a single cooling button KS corresponding to a light-reducing pattern LRP can include both a left light-reducing pattern LRP-L and a right light-reducing pattern LRP-R, and a single cooling button KS corresponding to a diffusion pattern DP can include both a left diffusion pattern DP-L and a right diffusion pattern DP-R. In other words, each light-reducing pattern LRP has two diffusion patterns DP adjacent to it, and when viewed from above along the Z-direction, each light-reducing pattern LRP is located between its two adjacent diffusion patterns DP.

[0053] The left light-reducing pattern LRP-L and the left diffusion pattern DP-L can form a left heat-dissipating optical pattern group OPG-L, and the right light-reducing pattern LRP-R and the right diffusion pattern DP-R can form a right heat-dissipating optical pattern group OPG-R. In the present embodiment, the backlight module BLM has two through passages PC (i.e., a left through passage PC-L and a right through passage PC-R) corresponding to each heat-dissipating key KS, and the left heat-dissipating optical pattern group OPG-L and the right heat-dissipating optical pattern group OPG-R corresponding to each heat-dissipating key KS are symmetrically located on opposite sides of the keycap projection area KCCP. In the present embodiment, the two left heat-dissipating optical pattern groups corresponding to the two heat-dissipating keys KS have the same pattern, and the two right heat-dissipating optical pattern groups OPG-R corresponding to the two heat-dissipating keys KS also have the same pattern. In actual operation, since the circuit portion EC of the key circuit MEM plate of the square key can not be transparent to light and is not suitable to pass above the diffusion pattern DP, the vertically extending portion of the circuit portion EC is preferably located between the left heat-dissipating optical pattern group OPG-L and the right heat-dissipating optical pattern group OPG-R corresponding to a single heat-dissipating key KS. In actual operation, since the rib portion (including the annular rib Sr0 and the bridging rib Sr1) of the bottom plate SUP of the square key can not be transparent to light and is not suitable to pass above the diffusion pattern DP, the annular rib Sr0 and the bridging rib Sr1 of the bottom plate SUP are preferably located between the left heat-dissipating optical pattern group OPG-L and the right heat-dissipating optical pattern group OPG-R corresponding to a single heat-dissipating key KS. That is, in the top view along the Z direction, the left light-reducing pattern LRP-L and the left diffusion pattern DP-L are located on the same side of the circuit portion EC and on the same side of the rib portion (including the annular rib Sr0 and the bridging rib Sr1) of the bottom plate SUP, and the right light-reducing pattern LRP-R and the right diffusion pattern DP-R are located on the same side of the circuit portion EC and on the same side of the rib portion (including the annular rib Sr0 and the bridging rib Sr1) of the bottom plate SUP. Moreover, in the top view along the Z direction, the left light-reducing pattern LRP-L and the right light-reducing pattern LRP-R are located on opposite sides of the circuit portion EC and on opposite sides of the rib portion (including the annular rib Sr0 and the bridging rib Sr1) of the bottom plate SUP, and the left diffusion pattern DP-L and the right diffusion pattern DP-R are located on opposite sides of the circuit portion EC and on opposite sides of the rib portion (including the annular rib Sr0 and the bridging rib Sr1) of the bottom plate SUP.

[0054] Please refer to FIG. 5 , FIG. 5 for FIG. 1 the top view of the partial region T2 of the light-emitting keyboard LKB in FIG. 5The description focuses on the technical features between the heat-dissipating keys KS of different rows in the light-emitting keyboard LKB.

[0055] As shown in FIG. 5 , the heat-dissipating key KS on the left side of the upper row ROW1 is adjacent to the heat-dissipating key KS on the left side of the middle row ROW2 in the Y direction but staggered in the X direction, and the heat-dissipating key KS on the right side of the upper row ROW1 is adjacent to the heat-dissipating key KS on the right side of the middle row ROW2 in the Y direction but staggered in the X direction. The right heat-dissipating optical pattern group OPG-R (formed by the right light-reducing pattern LRP-R and the right diffusion pattern DP-R) corresponding to the heat-dissipating key KS on the left side of the upper row ROW1 at least partially overlaps the left heat-dissipating optical pattern group OPG-L (formed by the left light-reducing pattern LRP-L and the left diffusion pattern DP-L) corresponding to the heat-dissipating key KS on the left side of the middle row ROW2 in the Y direction, i.e., the two partially overlapped heat-dissipating optical pattern groups form a connection line C1. In addition, the right heat-dissipating optical pattern group OPG-R (formed by the right light-reducing pattern LRP-L and the right diffusion pattern DP-L) corresponding to the heat-dissipating key KS on the right side of the upper row ROW1 at least partially overlaps the left heat-dissipating optical pattern group OPG-L (formed by the left light-reducing pattern LRP-L and the left diffusion pattern DP-L) corresponding to the heat-dissipating key KS on the right side of the middle row ROW2 in the Y direction, i.e., the two partially overlapped heat-dissipating optical pattern groups also form the connection line C1.

[0056] Furthermore, the left heat-dissipating optical pattern group OPG-L (formed by the left light-reducing pattern LRP-L and the left diffusion pattern DP-L) corresponding to the heat-dissipating key KS on the right side of the upper row ROW1 at least partially overlaps the right heat-dissipating optical pattern group OPG-R (formed by the right light-reducing pattern LRP-R and the right diffusion pattern DP-R) corresponding to the heat-dissipating key KS on the left side of the middle row ROW2 in the Y direction, i.e., the two partially overlapped heat-dissipating optical pattern groups form a connection line C2. In summary, the connection line C1 is formed by the right heat-dissipating optical pattern group OPG-R of the higher row and the left heat-dissipating optical pattern group OPG-L of the lower row corresponding to two heat-dissipating keys KS adjacent in the Y direction but staggered in the X direction, and the connection line C2 is formed by the left heat-dissipating optical pattern group OPG-L of the higher row and the right heat-dissipating optical pattern group OPG-R of the lower row corresponding to two heat-dissipating keys KS adjacent in the Y direction but staggered in the X direction. FIG. 5 As shown in

[0057] Please refer to FIG. 6 , FIG. 6 for FIG. 1This is a top view of a partial area T3 of the backlit keyboard LKB, omitting the keycaps KCC, support SSR, trigger TE, and reset element RE. This embodiment uses four adjacent heat-dissipating keys KS within partial area T3 as an example. The four heat-dissipating keys KS within partial area T3 can also employ the technical features described above, which will not be repeated here. Regarding... FIG. 6 The description mainly focuses on the technical features of the heat dissipation keys KS in different rows of the backlit keyboard LKB.

[0058] like FIG. 6 As shown, the heat dissipation button KS located to the left of ROW2 in the middle column is adjacent to the heat dissipation button KS located to the left of ROW3 below in the Y direction but offset in the X direction. Similarly, the heat dissipation button KS located to the right of ROW2 in the middle column is adjacent to the heat dissipation button KS located to the right of ROW3 below in the Y direction but offset in the X direction. The right heat-reducing optical pattern group OPG-R (formed by its right subtraction pattern LRP-R and right diffusion pattern DP-R) corresponding to the heat dissipation button KS located to the left of ROW2 in the middle column at least partially overlaps the switch pad SP corresponding to the heat dissipation button KS located to the left of ROW3 below in the Y direction. That is, these partially overlapping right heat-reducing optical pattern groups OPG-R and the switch pad SP form a connection line D1. Furthermore, the right heat-reducing optical pattern group OPG-R (formed by its right light-reducing pattern LRP-R and right light-diffusing pattern DP-R) of the heat dissipation button KS located on the right side of ROW2 in the middle column at least partially overlaps the switch pad SP corresponding to the heat dissipation button KS located on the right side of ROW3 in the following direction in the Y direction. That is, these partially overlapping right heat-reducing optical pattern groups OPG-R and switch pad SP also form a connection line D1.

[0059] Furthermore, the left heat-reducing optical pattern group OPG-L (formed by its left light-reducing pattern LRP-L and left light-diffusing pattern DP-L) of the heat dissipation button KS located on the right side of ROW2 in the middle column at least partially overlaps in the Y direction with the button gap area G outside the heat dissipation buttons KS located on the left / right sides of ROW3 below. That is, these partially overlapping left heat-reducing optical pattern groups OPG-L and button gap area G form a connection line D2. In summary, connection line D1 is formed by the right heat-reducing optical pattern group OPG-R of two heat dissipation buttons KS that are adjacent in the Y direction but staggered in the X direction and the corresponding switch pad SP in the lower column. Connection line D2 is formed by the left heat-reducing optical pattern group OPG-L of two heat dissipation buttons KS that are adjacent in the Y direction but staggered in the X direction and the corresponding button gap area G in the lower column. FIG. 6 The image shows a special layout where the heat dissipation buttons KS in two adjacent columns of the backlit keyboard LKB are offset by 1 / 4 of the button center.

[0060] In summary, the present application designs one or more through channels in the light-emitting keyboard and the backlight module used thereby. In this way, the through channels can be used to dissipate heat from the heat-generating area below the heat-dissipating key, thereby improving the heat dissipation efficiency of the light-emitting keyboard. In addition, the present application further designs a light-reducing pattern on the periphery of the through channel to shield light and a diffusion pattern on the adjacent side thereof to guide light to illuminate the heat-dissipating key, thereby improving the overall uniformity of light emission and solving the upward / downward light leakage problem that may exist in the through channel.

[0061] On the other hand, the light-emitting keyboard of the present application can further have at least one special function key to correspond to the special function of the computing device to which it is connected or disposed, such as artificial intelligence assistance function. When the user presses the special function key, the artificial intelligence assistance function is activated. The backlight module of the light-emitting keyboard can have a special design and configuration corresponding to the special function key.

[0062] Please refer to FIG. 7A-7B , FIG. 7A for the top view of the special function key KS-1 of the light-emitting keyboard LKB and the backlight module BLM according to another embodiment of the present application, and FIG. 7B for the layered exploded view of the special function key KS-1 and the backlight module BLM. In this embodiment, the light-emitting keyboard LKB can include the backlight module BLM and the special function key KS-1. The special function key KS-1 is located above the backlight module BLM. In addition to providing the overall general backlight function of the light-emitting keyboard LKB, the backlight module BLM can also provide the exclusive backlight function of the individual key of the special function key KS-1. It should be noted that in the light-emitting keyboard LKB of this embodiment, the special function key KS-1 can include the aforementioned bottom plate SUP and key circuit board MEM, which can be disposed above the backlight module BLM. However, in accordance with the present embodiment, there is no special design and configuration for the bottom plate SUP and the key circuit board MEM, so FIG. 7A-7B the bottom plate SUP and the key circuit board MEM are omitted to make the display of the drawing simple and clear.

[0063] As FIG. 7A-7BAs shown, the backlight module BLM can include a light plate LCB, a light guide plate LGP, and a light shield plate SS. The light shield plate SS, the light guide plate LGP, and the light plate LCB are stacked from top to bottom. The light plate LCB can have first light emitting units LED-1 and second light emitting units LED-2. The first light emitting units LED-1 and the second light emitting units LED-2 are, for example, light emitting diodes. In the present embodiment, the first light emitting units LED-1 are side view LEDs, while the second light emitting units LED-2 are top view LEDs. The first light emitting units LED-1 can be used to provide the general backlight function of the whole light keyboard LKB, and thus the number thereof can be multiple. The second light emitting units LED-2 are used to provide the exclusive backlight function of the individual key of the specific function key KS-1, and thus the number thereof depends on the number of the specific function key KS-1. Regarding the light emitting configuration of the light plate LCB, the first light emitting units LED-1 and the second light emitting units LED-2 can be configured to emit light simultaneously or at different times. The first light emitting units LED-1 and the second light emitting units LED-2 are respectively adjacent to two opposite side edges of the key cap projection area KCCP-1 of the specific function key KS-1, i.e., the first light emitting units LED-1 are adjacent to the side edge S2, and the second light emitting units LED-2 are adjacent to the side edge S1.

[0064] As FIG. 7A-7BAs shown, the light guide plate LGP has a first light guide hole L0-1 and a second light guide hole L0-2. The first light emitting unit LED-1 can be located in the first light guide hole L0-1, while the second light emitting unit LED-2 can be located in the second light guide hole L0-2. The light guide plate LGP can have adhesive around the first light guide hole L0-1 and the second light guide hole L0-2 on the top and / or bottom surface thereof, to adhere the light shielding plate SS and / or the light cover plate LCB, respectively. Since the first light guide hole L0-1 and the second light guide hole L0-2 are aligned with the first light emitting unit LED-1 and the second light emitting unit LED-2, respectively, the first light guide hole L0-1 and the second light guide hole L0-2 are adjacent to opposite side edges of the keycap casting projection KCCP-1 of the specific function key KS-1, i.e. the first light guide hole L0-1 is adjacent to the side edge S2, while the second light guide hole L0-2 is adjacent to the side edge S1. The light guide plate LGP further has a light guide plate slot LS. The light guide plate slot LS has a reverse U-shaped outer profile. The light guide plate slot LS is arranged around one of the first light emitting unit LED-1 and the second light emitting unit LED-2. In the stacking direction (longitudinal direction), the light guide plate slot LS overlaps with the boundary projection of the keycap casting projection KCCP-1 of the specific function key KS-1. Specifically, the light guide plate slot LS overlaps with one of the two aforementioned side edges and the other two opposite side edges of the keycap casting projection KCCP-1, which are connected to one of the two aforementioned opposite side edges. In this embodiment, the light guide plate slot LS overlaps with the side edge S1 and the side edges S3 and S4 of the keycap casting projection KCCP-1, which are adjacent to the side edge S1 and the side edge S2.

[0065] As FIG. 7A-7BAs shown, the light shield SS can have a shielding portion MP and a light transmitting portion TP. The shielding portion MP and the light transmitting portion TP can be stacked in various manners to form the light shield SS. The shielding portion MP is opaque, while the light transmitting portion TP can have both reflective and translucent properties, i.e., the light transmitting portion TP can reflect some light and allow some light to pass through. For example, the shielding portion MP can be black paint, and the light transmitting portion TP can be white paint, but not limited thereto. In the present embodiment, the shielding portion MP includes an outer frame portion MP-1 and an inner block portion MP-2, where the outer frame portion MP-1 surrounds the light transmitting portion TP, and the inner block portion MP-2 is located within the range of the light transmitting portion TP. The shielding portion MP is projectedly overlapped with the first light emitting unit LED-1 and the second light emitting unit LED-2. Specifically, in the stacking direction (the longitudinal direction), the first light emitting unit LED-1 is projectedly overlapped with the outer frame portion MP-1, and the second light emitting unit LED-2 is projectedly overlapped with the inner block portion MP-2. The shielding portion MP serves as a means for adjusting the light emitting amount of the first light emitting unit LED-1 and the second light emitting unit LED-2 toward the specific function key KS-1. The light guide plate groove LS is shielded by the shielding portion MP. That is, the light guide plate groove LS is projectedly overlapped with the shielding portion MP. Specifically, the light guide plate groove LS is projectedly overlapped with the outer frame portion MP-1, and is not projectedly overlapped with the inner block portion MP-2. The light guide plate groove LS is disposed around the light transmitting portion TP, i.e., is also not projectedly overlapped with the light transmitting portion TP.

[0066] Further, as FIG. 8A-8BAs shown, the backlight module BLM can further include a reflective layer REF. The reflective layer REF can be disposed between the light guide plate LGP and the lamp plate LCB. The reflective layer REF corresponds to the first light emitting unit LED-1 and the second light emitting unit LED-2 to have a first reflective layer hole RH-1 and a second reflective layer hole RH-2. The first light emitting unit LED-1 can be located in the first reflective layer hole RH-1, while the second light emitting unit LED-2 can be located in the second reflective layer hole RH-2. The first light guide hole L0-1 is vertically aligned with the first reflective layer hole RH-1, while the second light guide hole L0-2 is vertically aligned with the second reflective layer hole RH-2. Thus, the first light emitting unit LED-1 can simultaneously pass through the first light guide hole L0-1 and the first reflective layer hole RH-1, while the second light emitting unit LED-2 can simultaneously pass through the second light guide hole L0-2 and the second reflective layer hole RH-2. The reflective layer REF can further have a fitting portion RA. The fitting portion RA corresponds to the outer shape of the light guide plate groove LS to have an inverted U-shaped outer shape. The light guide plate groove LS is vertically aligned with the fitting portion RA. The fitting portion RA overlaps with the boundary projection of the shielding portion MP of the light shield plate SS and the key cap projection area KCCP-1. The reflective layer REF can pass through the light guide plate groove LS upward by its fitting portion RA and be bonded with the lower surface of the light shield plate SS to cover the edge of the light guide plate groove LS of the light guide plate LGP, thereby providing the effect of preventing light leakage. Specifically, the fitting portion RA can have adhesive to bond the light shield plate SS upward. However, this is not limited. Before the reflective layer REF is bonded with the light shield plate SS, the fitting portion RA or the light shield plate SS can be given a predetermined shape by embossing or bulging technology to improve the bonding efficiency. For example, the fitting portion RA can be black, while the portion of the reflective layer REF other than the fitting portion RA can be white.

[0067] Please refer to FIG. 8A , FIG. 8B is a top view of a specific function key KS-1 of a light-emitting keyboard LKB and a backlight module BLM according to another embodiment of the present application, and FIG. 8A-8B is a layered exploded view of the specific function key KS-1 and the backlight module BLM. In this embodiment, the light-emitting keyboard LKB can include the backlight module BLM and the specific function key KS-1. The specific function key KS-1 is located above the backlight module BLM. The backlight module BLM can provide not only the overall backlight function of the light-emitting keyboard LKB but also the exclusive backlight function of the single key of the specific function key KS-1. It should be noted that in the light-emitting keyboard LKB of this embodiment, the specific function key KS-1 can include the aforementioned bottom plate SUP and key circuit board MEM, which can be disposed above the backlight module BLM. However, in compliance with the present embodiment, the bottom plate SUP and the key circuit board MEM are not specially designed and configured, so in this embodiment, the bottom plate SUP and the key circuit board MEM can be the same as those in the first embodiment. FIG. 8A-8BThe base plate SUP and the button circuit board MEM are omitted to keep the drawing simple.

[0068] like FIG. 8A-8B As shown, the backlight module (BLM) may include a lamp board (LCB), a light guide plate (LGP), and a light shield (SS). The light shield (SS), the light guide plate (LGP), and the lamp board (LCB) are stacked from top to bottom. The lamp board (LCB) may have a first light-emitting unit (LED-1) and a second light-emitting unit (LED-2). The first light-emitting unit (LED-1) and the second light-emitting unit (LED-2) are, for example, light-emitting diodes (LEDs). In this embodiment, both the first light-emitting unit (LED-1) and the second light-emitting unit (LED-2) are side-emitting LEDs, emitting light towards the side S1 of the keycap projection area KCCP-1 of the specific function key KS-1. The first light-emitting unit (LED-1) can be used to provide the general backlight function of the entire backlit keyboard (LKB), so there can be multiple of them. The second light-emitting unit (LED-2) is used to provide the dedicated backlight function of a single key of the specific function key KS-1, and its number depends on the number of specific function keys KS-1. Regarding the light-emitting configuration of the lamp board (LCB), the first light-emitting unit (LED-1) and the second light-emitting unit (LED-2) can be configured to emit light simultaneously or at different times. Furthermore, in this embodiment, the light color of the first light-emitting unit LED-1 and the light color of the second light-emitting unit LED-2 can be configured to be different, so that the exclusive backlight of the specific function key KS-1 is different from the normal backlight of other general keys. Both the first light-emitting unit LED-1 and the second light-emitting unit LED-2 are adjacent to the side S2 of the keycap projection area KCCP-1 of the specific function key KS-1. The first light-emitting unit LED-1 and the second light-emitting unit LED-2 are arranged side by side and emit light in the same direction (i.e., towards the side S1).

[0069] like FIG. 8A-8BAs shown, the light guide plate LGP has a first light guide hole L0-1 and a second light guide hole L0-2. The first light emitting unit LED-1 can be located in the first light guide hole L0-1, and the second light emitting unit LED-2 can be located in the second light guide hole L0-2. The light guide plate LGP can have adhesive around the first light guide hole L0-1 and the second light guide hole L0-2 on the top surface and / or the bottom surface thereof, to adhere the light shielding plate SS and / or the light plate LCB, respectively. Since the first light guide hole L0-1 and the second light guide hole L0-2 are aligned with the first light emitting unit LED-1 and the second light emitting unit LED-2, respectively, the first light guide hole L0-1 and the second light guide hole L0-2 are also adjacent to the side edge S2 of the keycap projection area KCCP-1 of the specific function key KS-1, and are arranged side by side. The light guide plate LGP also has a light guide plate groove LS. The light guide plate groove LS has a reverse U-shaped outer shape. The light guide plate groove LS is arranged around one of the first light emitting unit LED-1 and the second light emitting unit LED-2. In the stacking direction (the longitudinal direction), the light guide plate groove LS overlaps the boundary projection of the keycap projection area KCCP-1 of the specific function key KS-1. Specifically, the light guide plate groove LS overlaps one of the aforementioned two side edges and the other two opposite side edges of the keycap projection area KCCP-1, which are connected to one of the aforementioned two opposite side edges. In this embodiment, the light guide plate groove LS overlaps the side edge S1 and the side edges S3 and S4 of the keycap projection area KCCP-1, and does not overlap the side edge S2 adjacent to the first light emitting unit LED-1 and the second light emitting unit LED-2, wherein the side edges S3 and S4 are adjacent edges connected to the side edge S1 and the side edge S2.

[0070] As FIG. 8A-8BAs shown, the light shield SS can have a shielding portion MP and a light transmitting portion TP. The shielding portion MP and the light transmitting portion TP can be stacked in various manners to form the light shield SS. The shielding portion MP is opaque, while the light transmitting portion TP can have both reflective and translucent properties, i.e., the light transmitting portion TP can reflect some light and allow some light to pass through. For example, the shielding portion MP can be black paint, and the light transmitting portion TP can be white paint, but not limited thereto. In the present embodiment, the shielding portion MP includes an outer frame portion MP-1, where the outer frame portion MP-1 surrounds the light transmitting portion TP. The shielding portion MP is projectedly overlapped with the first light emitting unit LED-1 and the second light emitting unit LED-2. Specifically, in the stacking direction (longitudinal direction), the outer frame portion MP-1 is projectedly overlapped with the first light emitting unit LED-1 and the second light emitting unit LED-2. The shielding portion MP serves as a means for adjusting the light emitting amount of the first light emitting unit LED-1 and the second light emitting unit LED-2 toward the specific function key KS-1. The light guide plate groove LS is shielded by the shielding portion MP. That is, the light guide plate groove LS is projectedly overlapped with the shielding portion MP. Specifically, the light guide plate groove LS is projectedly overlapped with the outer frame portion MP-1. The light guide plate groove LS is disposed around the light transmitting portion TP, i.e., no projected overlap with the light transmitting portion TP.

[0071] Further, as FIG. 9A-9BAs shown, the backlight module BLM can further include a reflective layer REF. The reflective layer REF can be disposed between the light guide plate LGP and the lamp plate LCB. The reflective layer REF corresponds to the first light emitting unit LED-1 and the second light emitting unit LED-2 to have a first reflective layer hole RH-1 and a second reflective layer hole RH-2. The first light emitting unit LED-1 can be located in the first reflective layer hole RH-1, while the second light emitting unit LED-2 can be located in the second reflective layer hole RH-2. The first light guide hole L0-1 is vertically aligned with the first reflective layer hole RH-1, while the second light guide hole L0-2 is vertically aligned with the second reflective layer hole RH-2. Thus, the first light emitting unit LED-1 can simultaneously pass through the first light guide hole L0-1 and the first reflective layer hole RH-1, while the second light emitting unit LED-2 can simultaneously pass through the second light guide hole L0-2 and the second reflective layer hole RH-2. The reflective layer REF can further have a fitting portion RA. The fitting portion RA corresponds to the outer shape of the light guide plate groove LS to have an inverted U-shaped outer shape. The reflective layer REF can pass through the light guide plate groove LS upward by its fitting portion RA and be engaged with the lower surface of the light shield plate SS to cover the edge of the light guide plate groove LS of the light guide plate LGP, thereby providing the effect of preventing light leakage. Specifically, the fitting portion RA can have an adhesive to upwardly adhere the light shield plate SS. Before the reflective layer REF is adhered to the light shield plate SS, the fitting portion RA or the light shield plate SS can be given a predetermined shape by embossing or bulging technology to improve the adhesion efficiency. For example, the fitting portion RA can be black, while the portion of the reflective layer REF other than the fitting portion RA can be white, but the disclosure is not limited thereto.

[0072] Please refer to FIG. 9A , FIG. 9B is a top view of a specific function key KS-1 of a light-emitting keyboard LKB and a backlight module BLM according to another embodiment of the present disclosure, and FIG. 9A-9B is a layered exploded view of the specific function key KS-1 and the backlight module BLM. In this embodiment, the light-emitting keyboard LKB can include the backlight module BLM and the specific function key KS-1. The specific function key KS-1 is located above the backlight module BLM. The backlight module BLM can provide not only the overall backlight function of the light-emitting keyboard LKB but also the exclusive backlight function of the individual key of the specific function key KS-1. It should be noted that in the light-emitting keyboard LKB of this embodiment, the specific function key KS-1 can include the aforementioned bottom plate SUP, which can be disposed above the backlight module BLM and below the key circuit board MEM. However, in compliance with the present embodiment, the bottom plate SUP is not specially designed and configured, so in FIG. 9A-9B the bottom plate SUP is omitted for the sake of simplicity of the display of the drawing.

[0073] As FIG. 7A-7BAs shown, the backlight module BLM can include a light plate LCB, a light guide plate LGP, and a light shield plate SS. The light shield plate SS, the light guide plate LGP, and the light plate LCB are stacked from top to bottom. The light plate LCB can have a first light emitting unit LED-1. The first light emitting unit LED-1 is, for example, a light emitting diode. In the present embodiment, the first light emitting unit LED-1 is a side light emitting type light emitting diode to emit light toward a side edge S1 of the keycap projection area KCCP-1 of the specific function key KS-1. The first light emitting unit LED-1 can be used to provide the general backlight function of the entire light emitting keyboard LKB, and thus the number thereof can be multiple. The specific function key KS-1 can include a key circuit board MEM. As shown in the foregoing embodiments, the key circuit board MEM can have a second light emitting unit LED-2, i.e., the second light emitting unit LED-2 is not disposed on the light plate LCB. The second light emitting unit LED-2 can be disposed on the upper surface of the key circuit board MEM, i.e., belongs to a different layer of the light emitting keyboard LKB from the first light emitting unit LED-1. The second light emitting unit LED-2 is, for example, a light emitting diode. In the present embodiment, the second light emitting unit LED-2 is an upward light emitting type light emitting diode. The second light emitting unit LED-2 is used to provide the exclusive backlight function of the individual key of the specific function key KS-1, and thus the number thereof depends on the number of the specific function key KS-1. Regarding the light emitting configuration of the light plate LCB, the first light emitting unit LED-1 and the second light emitting unit LED-2 can be configured to emit light simultaneously or at different times. The first light emitting unit LED-1 and the second light emitting unit LED-2 are respectively adjacent to two opposite side edges of the keycap projection area KCCP-1 of the specific function key KS-1, i.e., the first light emitting unit LED-1 is adjacent to the side edge S2, and the second light emitting unit LED-2 is adjacent to the side edge S1. FIG. 8A-8B and FIG. 9A-9B The difference between the present embodiment and the foregoing embodiments is that, in the present embodiment, the key circuit board MEM can have a second light emitting unit LED-2, i.e., the second light emitting unit LED-2 is not disposed on the light plate LCB. The second light emitting unit LED-2 can be disposed on the upper surface of the key circuit board MEM, i.e., belongs to a different layer of the light emitting keyboard LKB from the first light emitting unit LED-1. The second light emitting unit LED-2 is, for example, a light emitting diode. In the present embodiment, the second light emitting unit LED-2 is an upward light emitting type light emitting diode. The second light emitting unit LED-2 is used to provide the exclusive backlight function of the individual key of the specific function key KS-1, and thus the number thereof depends on the number of the specific function key KS-1. Regarding the light emitting configuration of the light plate LCB, the first light emitting unit LED-1 and the second light emitting unit LED-2 can be configured to emit light simultaneously or at different times. The first light emitting unit LED-1 and the second light emitting unit LED-2 are respectively adjacent to two opposite side edges of the keycap projection area KCCP-1 of the specific function key KS-1, i.e., the first light emitting unit LED-1 is adjacent to the side edge S2, and the second light emitting unit LED-2 is adjacent to the side edge S1.

[0074] As FIG. 9A-9BAs shown, the light guide plate LGP has a first light guide hole L0-1. The first light emitting unit LED-1 can be located in the first light guide hole L0-1. The top and / or bottom surface of the light guide plate LGP near the first light guide hole L0-1 can have adhesive around the first light guide hole L0-1 to adhere the light shielding plate SS and / or the light plate LCB, respectively. Since the first light guide hole L0-1 is positioned corresponding to the first light emitting unit LED-1, the first light guide hole L0-1 is also adjacent to the side edge S2 of the key cap projection area KCCP-1 of the specific function key KS-1. The light guide plate LGP also has a light guide plate groove LS. The light guide plate groove LS has a reverse U-shaped outer shape. The light guide plate groove LS is arranged around one of the first light emitting unit LED-1 and the second light emitting unit LED-2. In the stacking direction (longitudinal direction), the light guide plate groove LS overlaps the boundary projection of the key cap projection area KCCP-1 of the specific function key KS-1. Specifically, the light guide plate groove LS overlaps one of the aforementioned two side edges and the other two opposite side edges of the key cap projection area KCCP-1, which are connected to one of the aforementioned two opposite side edges. In this embodiment, the light guide plate groove LS overlaps the side edge S1 and the side edges S3 and S4 of the key cap projection area KCCP-1, and does not overlap the side edge S2 adjacent to the first light emitting unit LED-1, where the side edges S3 and S4 are adjacent edges connected to the side edges S1 and S2.

[0075] As shown, FIG. 9A-9B The light shielding plate SS can have a shielding portion MP and a light transmission portion TP. The shielding portion MP and the light transmission portion TP can be variously stacked to form the light shielding plate SS. The shielding portion MP is opaque, while the light transmission portion TP can have both reflective and translucent properties, i.e., the light transmission portion TP can reflect part of the light and allow part of the light to pass through. For example, the shielding portion MP can be black paint, and the light transmission portion TP can be white paint, but not limited thereto. In this embodiment, the shielding portion MP includes a frame portion MP-1, where the frame portion MP-1 surrounds the light transmission portion TP. The shielding portion MP overlaps the projection of the first light emitting unit LED-1. Specifically, in the stacking direction (longitudinal direction), the frame portion MP-1 overlaps the projection of the first light emitting unit LED-1. The shielding portion MP serves as a means for adjusting the light output of the first light emitting unit LED-1 towards the specific function key KS-1. The light guide plate groove LS is shielded by the shielding portion MP. That is, the light guide plate groove LS overlaps the projection of the shielding portion MP. Specifically, the light guide plate groove LS overlaps the projection of the frame portion MP-1. The light guide plate groove LS is arranged around the light transmission portion TP, i.e., does not overlap the projection of the light transmission portion TP. The second light emitting unit LED-2 overlaps the projection of the light transmission portion TP, i.e., under the plan view in the stacking direction (longitudinal direction), the second light emitting unit LED-2 is located within the range of the light transmission portion TP.

[0076] Further, asFIG. 10A-10B As shown, the backlight module BLM can further include a reflective layer REF. The reflective layer REF can be disposed between the light guide plate LGP and the lamp plate LCB. The reflective layer REF corresponds to the first light emitting unit LED-1 to have a first reflective layer hole RH-1. The first light emitting unit LED-1 can be located in the first reflective layer hole RH-1. The first light guide hole L0-1 and the first reflective layer hole RH-1 are vertically aligned. Thus, the first light emitting unit LED-1 can pass through the first light guide hole L0-1 and the first reflective layer hole RH-1 at the same time. The reflective layer REF can further have a fitting portion RA. The fitting portion RA corresponds to the outer shape of the light guide plate groove LS to have an inverted U-shaped outer shape. The reflective layer REF can pass through the light guide plate groove LS upwardly by its fitting portion RA and be engaged with the lower surface of the light shield plate SS to cover the edge of the light guide plate groove LS of the light guide plate LGP, thereby providing the effect of preventing light leakage. Specifically, the fitting portion RA can have an adhesive to upwardly adhere the light shield plate SS. Before the reflective layer REF and the light shield plate SS are adhered, the fitting portion RA or the light shield plate SS can be given a predetermined shape by embossing or bulging technology to improve the adhesion efficiency. For example, the fitting portion RA can be black, and the part of the reflective layer REF other than the fitting portion RA can be white, but the application is not limited thereto.

[0077] Please refer to FIG. 10A , FIG. 10B for the top view of the specific function key KS-1 of the light emitting keyboard LKB and the backlight module BLM according to another embodiment of the application, and FIG. 10A-10B for the layered exploded view of the specific function key KS-1 and the backlight module BLM. In this embodiment, the light emitting keyboard LKB can include the backlight module BLM and the specific function key KS-1. The specific function key KS-1 is located above the backlight module BLM. The backlight module BLM can provide the backlight function for the specific function key KS-1 in addition to providing the backlight function for the whole light emitting keyboard LKB. It should be noted that in the light emitting keyboard LKB of this embodiment, the specific function key KS-1 can include the aforementioned bottom plate SUP, which can be disposed above the backlight module BLM and below the key circuit board MEM. However, in this embodiment, the bottom plate SUP is not specially designed and configured, so in FIG. 10A-10B the bottom plate SUP is omitted to make the display of the drawing simple and clear.

[0078] As FIG. 7A-7BAs shown, the backlight module BLM may include a lamp board LCB, a light guide plate LGP, and a light shield SS. The light shield SS, the light guide plate LGP, and the lamp board LCB are stacked from top to bottom. The lamp board LCB may have a first light-emitting unit LED-1. The first light-emitting unit LED-1 is, for example, a light-emitting diode. In this embodiment, the first light-emitting unit LED-1 is a side-emitting type light-emitting diode, which emits light toward the side S1 of the keycap projection area KCCP-1 of the specific function key KS-1. The first light-emitting unit LED-1 can be used to provide the general backlight function of the entire backlit keyboard LKB, so there may be multiple of them. The specific function key KS-1 may include a key circuit board MEM. As described above... FIG. 8A-8B and FIG. 10A-10B The difference between the embodiments shown is that, in this embodiment, the keypad circuit board MEM may have a second light-emitting unit LED-2, that is, the second light-emitting unit LED-2 is not disposed on the light board LCB. The second light-emitting unit LED-2 may be disposed on the upper surface of the keypad circuit board MEM, that is, it belongs to a different layer of the backlit keyboard LKB from the first light-emitting unit LED-1. The second light-emitting unit LED-2 is, for example, a light-emitting diode. In this embodiment, the second light-emitting unit LED-2 is a side-emitting type light-emitting diode. The second light-emitting unit LED-2 is used to provide a dedicated backlight function for a single key of a specific function key KS-1, and its number depends on the number of specific function keys KS-1. Regarding the light-emitting configuration of the light board LCB, the first light-emitting unit LED-1 and the second light-emitting unit LED-2 may be configured to emit light simultaneously or at different times. In addition, in this embodiment, the light color of the first light-emitting unit LED-1 and the light color of the second light-emitting unit LED-2 may be configured to be different, so that the dedicated backlight of the specific function key KS-1 is different from the normal backlight of other general keys. Both the first light-emitting unit LED-1 and the second light-emitting unit LED-2 are located adjacent to the side S2 of the keycap projection area KCCP-1 of the specific function key KS-1. In a top view in the stacking direction (vertical), the first light-emitting unit LED-1 and the second light-emitting unit LED-2 are arranged side by side and emit light in the same direction (i.e., towards the side S1).

[0079] like FIG. 10A-10BAs shown, the light guide plate LGP has a first light guide hole L0-1. The first light emitting unit LED-1 can be located in the first light guide hole L0-1. The top and / or bottom surface of the light guide plate LGP near the first light guide hole L0-1 can have adhesive surrounding the first light guide hole L0-1 to adhere the light shield plate SS and / or the light plate LCB, respectively. Since the first light guide hole L0-1 is aligned with the first light emitting unit LED-1, the first light guide hole L0-1 is also adjacent to the same side edge S2 of the keycap casting projection area KCCP-1 of the specific function key KS-1. The light guide plate LGP also has a light guide plate slot LS. The light guide plate slot LS has a reverse U shape. The light guide plate slot LS surrounds one of the first light emitting unit LED-1 and the second light emitting unit LED-2. In the stacking direction (the longitudinal direction), the light guide plate slot LS overlaps with the boundary projection of the keycap casting projection area KCCP-1 of the specific function key KS-1. Specifically, the light guide plate slot LS overlaps with one of the two side edges and the other two opposite side edges of the keycap casting projection area KCCP-1, which are connected to one of the two opposite side edges. In this embodiment, the light guide plate slot LS overlaps with the side edge S1 and the side edges S3 and S4 of the keycap casting projection area KCCP-1, and does not overlap with the side edge S2 adjacent to the first light emitting unit LED-1 and the second light emitting unit LED-2, wherein the side edges S3 and S4 are adjacent edges connected to the side edges S1 and S2.

[0080] As FIG. 10A-10BAs shown, the light-shielding plate SS may have a shielding portion MP and a light-transmitting portion TP. The shielding portion MP and the light-transmitting portion TP can be stacked in various ways to form the light-shielding plate SS. The shielding portion MP is opaque, while the light-transmitting portion TP may simultaneously have reflective and semi-transparent properties; that is, the light-transmitting portion TP can reflect some light while allowing some light to pass through. For example, the shielding portion MP may be black paint, and the light-transmitting portion TP may be white paint, but this is not a limitation. In this embodiment, the shielding portion MP includes an outer frame portion MP-1, which surrounds the light-transmitting portion TP. The shielding portion MP overlaps with the projection of the first light-emitting unit LED-1. Specifically, in the stacking direction (longitudinal), the outer frame portion MP-1 overlaps with the projection of the first light-emitting unit LED-1. The shielding portion MP serves as a means of adjusting the amount of light emitted by the first light-emitting unit LED-1 toward the specific function button KS-1. The light guide plate groove LS is shielded by the shielding portion MP. That is, the light guide plate groove LS overlaps with the projection of the shielding portion MP. Specifically, the light guide plate groove LS overlaps with the projection of the outer frame portion MP-1. The light guide plate groove LS is arranged around the light-transmitting portion TP, meaning it does not overlap with the projection of the light-transmitting portion TP. The second light-emitting unit LED-2 overlaps with the projection of the light-transmitting portion TP, meaning that in a top view in the stacking direction (longitudinal), the second light-emitting unit LED-2 is located within the range of the light-transmitting portion TP. Furthermore, in a top view in the stacking direction (longitudinal), the second light-emitting unit LED-2 also partially overlaps with the projection of the shielding portion MP.

[0081] Furthermore, such as FIG. 7B As shown, the backlight module BLM may also include a reflective layer REF. The reflective layer REF may be disposed between the light guide plate LGP and the lamp plate LCB. The reflective layer REF corresponds to the first light-emitting unit LED-1 and has a first reflective layer hole RH-1. The first light-emitting unit LED-1 may be located in the first reflective layer hole RH-1. The first light guide hole L0-1 and the first reflective layer hole RH-1 are aligned vertically. Thus, the first light-emitting unit LED-1 can pass through both the first light guide hole L0-1 and the first reflective layer hole RH-1 simultaneously. The reflective layer REF may also have a bonding portion RA. The bonding portion RA corresponds to the shape of the light guide plate groove LS, forming an inverted U-shape. The reflective layer REF can pass upward through its bonding portion RA through the light guide plate groove LS and join with the lower surface of the light shield SS to cover the edge of the light guide plate groove LS of the light guide plate LGP, thereby providing an effect of preventing light leakage. Specifically, the bonding portion RA may have adhesive to adhere the light shield SS upward. Before bonding the reflective layer REF to the light-shielding plate SS, embossing or debossing techniques can be used to give the bonding portion RA or the light-shielding plate SS a preset shape to improve bonding efficiency. For example, the bonding portion RA can be painted black, while the portion of the reflective layer REF other than the bonding portion RA can be painted white, but this is not a limitation.

[0082] The above embodiments of the special function key KS-1 correspond to the layout in the light-emitting keyboard LKB. As shown in FIG. 8B , FIG. 9B , FIG. 10B and FIG. 5 , it can be seen that the special function key KS-1 and its two adjacent keys can be aligned (or said to correspond to) with three keys in the adjacent row. The two keys adjacent to the special function key KS-1 and the three keys in the adjacent row of the special function key KS-1 can adopt the design of the heat dissipation key KS described above, that is, the through channel PC (including the left through channel PC-L and the right through channel PC-R) formed by the stacking of the shade plate through hole SSH on the shade plate SS, the light guide plate through hole LGPH on the light guide plate LGP, the reflection layer through hole REFH on the reflection layer REF, and the lamp plate through hole LCBH on the lamp plate LCB. Further, the three keys in the adjacent row of the special function key KS-1 can be heat dissipation keys KS in the middle row ROW2 in the special layout as shown in FIG. 5 . That is, since the special function key KS-1 and its two adjacent keys are aligned with the three keys in the adjacent row, the three keys in the adjacent row of the special function key KS-1 can be heat dissipation keys KS in the middle row ROW2, so it can be understood that the special function key KS-1 can be misaligned by 1 / 2 key center with the heat dissipation key KS in the upper row ROW1 as shown in FIG. 7A-7B . Thus, in the embodiment shown in FIG. 9A-9B and the embodiment shown in FIG. 7A-7B , the first light-emitting unit LED-1 and the second light-emitting unit LED-2 can be arranged between the left through channel PC-L and the right through channel PC-R of the aligned heat dissipation key KS in the middle row ROW2; and in the embodiment shown in FIG. 9A-9B and the embodiment shown in FIG. 8A-8B , the first light-emitting unit LED-1 and the second light-emitting unit LED-2 can be arranged between the right through channel PC-R of a heat dissipation key KS in the upper row ROW1 and the left through channel PC-L of another heat dissipation key KS adjacent to the upper row ROW1. In addition, in the embodiment shown in FIG. 10A-10B and the embodiment shown in FIG. 5 , the first light-emitting unit LED-1 and the second light-emitting unit LED-2 can be arranged to at least partially overlap the left through channel PC-L and the right through channel PC-R of the aligned heat dissipation key KS in the middle row ROW2 in the X direction (shown in FIG. 8A-8B ); and in the embodiment shown in FIG. 10A-10B and the embodiment shown in FIG. 5 , the first light-emitting unit LED-1 and the second light-emitting unit LED-2 can be arranged to at least partially overlap the right through channel PC-R of a heat dissipation key KS in the upper row ROW1 and the left through channel PC-L of another heat dissipation key KS adjacent to the upper row ROW1 in the X direction (shown in FIG. 11A-11Ca right through channel PC-R of a heat dissipation key KS in the upper row ROW1 and a left through channel PC-L of another heat dissipation key KS adjacent to the upper row ROW1.

[0083] Next, the operation mechanism of the computing device in response to each embodiment of the specific function key KS-1 is described. Please refer to FIG. 11A , FIG. 11B a first state diagram of the light-emitting keyboard LKB in response to the operation mechanism of the computing device, FIG. 11C a second state diagram of the light-emitting keyboard LKB in response to the operation mechanism of the computing device, and FIG. 11A a third state diagram of the light-emitting keyboard LKB in response to the operation mechanism of the computing device.

[0084] As shown in FIG. 11B , in the first state, when the specific function (such as artificial intelligence auxiliary function) of the computing device is not started, the computing unit of the computing device can control the first light-emitting unit LED-1 in the light-emitting keyboard LKB to emit light, and control the second light-emitting unit LED-2 under the specific function key KS-1 not to emit light, wherein the dot effect shown in the figure represents light emission. At this time, the light-emitting keyboard LKB provides a general backlight function in the first state, the corresponding computing unit of the computing device in the first state is in a first performance, the memory of the computing device is also in a first usage, and the fan of the computing device is also in a first speed or even not running.

[0085] As shown in FIG. 11C , in the second state, when the specific function (such as artificial intelligence auxiliary function) of the computing device is started (i.e. the specific function key KS-1 is pressed), the computing unit of the computing device can control the second light-emitting unit LED-2 under the specific function key KS-1 to emit light, and control the first light-emitting unit LED-1 in the light-emitting keyboard LKB not to emit light, wherein the dot effect shown in the figure represents light emission. At this time, the light-emitting keyboard LKB provides a specific backlight function for the specific function key KS-1 in the second state, the corresponding computing unit of the computing device in the second state is in a second performance higher than the first performance, the memory of the computing device is also in a second usage higher than the first usage, and the fan of the computing device is also in a second speed higher than the first speed. Due to the arrangement of the heat dissipation keys KS adjacent to the specific function key KS-1, the heat dissipation of the computing unit, fan, etc. of the computing device is facilitated.

[0086] As shown in FIG. 12As shown, in the third state, also when the specific function of the computing device, such as the artificial intelligence auxiliary function, is activated (i.e. the specific function key KS-1 is pressed), the computing unit of the computing device can control the second light-emitting unit LED-2 under the specific function key KS-1 to emit light, and also control the first light-emitting unit LED-1 in the light-emitting keyboard LKB to emit light, wherein the dot effect shown in the figure represents the light emission. At this time, the light-emitting keyboard LKB provides the general backlight function in the third state and the exclusive backlight function of the specific function key KS-1, the computing unit of the computing device in the third state is in the third performance which is higher than the second performance, the memory of the computing device is in the third usage rate which is higher than the second usage rate, and the fan of the computing device is also in the third rotation speed which is higher than the second rotation speed.

[0087] Please refer to FIG. 12 , which is a connection architecture diagram of the light-emitting keyboard LKB and its specific function key KS-1 and the system of the computing device.

[0088] As shown in FIG. 13A-13B , the computing device 10 can include an interface processor 11, a storage medium 12, a fan 13, a memory 14, and a computing unit 15, wherein the interface processor 11, the storage medium 12, the fan 13, the memory 14, and the computing unit 15 can be connected by a bus BUS. The light-emitting keyboard LKB can be connected to the computing device 10 through the interface processor 11. When the specific function key KS-1 of the light-emitting keyboard LKB is pressed, the artificial intelligence auxiliary function of the computing device 10 can be activated accordingly, so that the computing performance is improved. When the computing performance of the computing device 10 is improved, the performance of the computing unit 15, the usage rate of the memory 14, and the rotation speed of the fan 13 are all improved. When the computing device 10 is externally connected with a graphics processing unit (GPU) or a network communication unit, or performs cloud computing, this can all be regarded as an additional computing unit that improves the computing performance of the computing device 10. The software suitable for the accelerated computing of artificial intelligence can be installed and operated in the computing device 10 or the cloud.

[0089] In summary of the above-mentioned embodiments, the present application designs a backlight module for a specific function key on a light-emitting keyboard. In this way, when the specific function of the computing device is activated, the color of the light under the specific function key can be displayed, so that the user can easily know that the specific function is in the activated state. In this way, the present application can conform to the specific function of the computing device and provide a corresponding configuration of the embedded keyboard module.

[0090] In yet another aspect, in some embodiments, the backlight module of the light-emitting keyboard of the present application can be configured to have a colored material coating, which can change the color of the light after the light passes through the colored material coating, thereby providing the light-emitting keyboard with a special effect of colored light emission. Please refer to the drawings of FIG. 14A-14B , FIG. 15A-15B , FIG. 16A-16B and FIG. 13A-13B , which show light-emitting keyboards LKB having designs with colored material coatings according to various embodiments of the present application.

[0091] Please refer to FIG. 13A , which shows an embodiment of a light-emitting keyboard LKB having a backlight module BLM configured with a colored material coating design, wherein FIG. 13B is a top view of the light-emitting keyboard LKB of this embodiment, FIG. 13A-13B is a partial cross-sectional view of the light-emitting keyboard LKB of this embodiment.

[0092] As shown in FIG. 2-6 , the light-emitting keyboard LKB can have a first key KS-A and a second key KS-B, with a key gap region G between the first key KS-A and the second key KS-B. The first key KS-A can be configured as the heat-dissipating key KS described in the previous embodiments, and thus can also be referred to as a first heat-dissipating key. In this embodiment, the first key KS-A can be but is not limited to a square key, and the second key KS-B can be but is not limited to a multiple key (please refer to FIG. 13A-13B , which shows that the first key KS-A is, for example, a Z key, and the second key KS-B is, for example, a shift key adjacent to the Z key). The first key KS-A and the second key KS-B can be disposed on the key circuit board MEM and the bottom plate SUP of the light-emitting keyboard LKB, with the backlight module BLM disposed below them. The backlight module BLM disposed below the key circuit board MEM and the bottom plate SUP can include, from top to bottom, a light-blocking plate SS, a light guide plate LGP, a reflective layer REF, and a lamp plate LCB. The reflective layer REF can be disposed between the light guide plate LGP and the lamp plate LCB. The lamp plate LCB can include one or more light-emitting units LED (e.g., light-emitting diodes). In this embodiment, the light-emitting units LED are disposed on one side (as viewed from the drawing of FIG. 13A , it is the right side) of the first key KS-A and the second key KS-B; the light of the light-emitting units LED can be guided through the light guide plate LGP and reflected by the reflective layer REF to be directed toward the first key KS-A and the second key KS-B (as viewed from the drawing of FIG. 13A , it is to the left).

[0093] As shown in FIG. 13B , the backlight module BLM can have a through channel PC disposed below the first key KS-A, so that the first key KS-A can become a heat-dissipating key, and can be configured to at least partially overlap with FIG. 13BThe heat-dissipating keys KS are shown with the same features. Through-passages PC are located on both sides of the first key KS-A, which can serve as heat-dissipating passages for the heat-generating region HR. The light shield SS can have a light-reducing pattern LRP; in this embodiment, the light-reducing pattern LRP corresponds to the first key KS-A and is located at the periphery of the through-passages PC to shield light. In this embodiment, the light-reducing pattern LRP is a ring of black paint applied to the upper surface of the light shield SS, but this is not limiting. In other possible embodiments, it can also be applied to the lower surface of the light shield SS.

[0094] As shown in FIG. 1 1, the backlight module BLM can also have a colored material coating CML. As shown in FIG. 12, the colored material coating CML (indicated by thick dashed lines) can correspond to the profile edges of the keys and the gaps between adjacent keys. Note that, FIG. 3 this is only one possible layout of the colored material coating CML for the light-emitting keyboard LKB, and is not meant to represent that the colored material coating CML can only be configured in this way. Further, as shown in FIG. 13, the colored material coating CML overlaps the key gap region G in the longitudinal direction (i.e., the stacking direction of the elements of the backlight module BLM). The colored material coating CML can be provided on the light shield SS and / or the light guide plate LGP. In this embodiment, the colored material coating CML is provided on the upper and lower surfaces of the light guide plate LGP. The colored material coating CML can be a layer of colored ink (e.g., a material selected from red, green, or blue ink) formed by printing. In other possible embodiments, the colored material coating CML can be provided on the upper and / or lower surfaces of the light shield SS and / or the light guide plate LGP, and can be configured as needed. FIG. 13B FIG. 14A-14B As shown in FIG. 14, the colored material coating CML also overlaps the light shield SS and the bottom plate SUP above it in the longitudinal direction. FIG. 14A FIG. 14B

[0095] In detail, the light shield SS can have the aforementioned opaque masking portion MP and also have a light-transmitting portion TP with reflective and semi-transparent properties. The masking portion MP and the light-transmitting portion TP are laminated. The masking portion MP is, for example, black paint, and the light-transmitting portion TP is, for example, white paint, but this is not limiting. In this embodiment, the colored material coating CML overlaps the light-transmitting portion TP and the masking portion MP of the light shield SS in the longitudinal direction. In detail, the bottom plate SUP can have a support frame Sf as shown in FIG. 15, which corresponds in position to the colored material coating CML. In this embodiment, the colored material coating CML overlaps the support frame Sf of the bottom plate SUP in the longitudinal direction, so that the colored material coating CML is masked by the support frame Sf of the bottom plate SUP from the perspective of the user. FIG. 14A-14B

[0096] In detail, the light shield SS can have the aforementioned opaque masking portion MP and also have a light-transmitting portion TP with reflective and semi-transparent properties. The masking portion MP and the light-transmitting portion TP are laminated. The masking portion MP is, for example, black paint, and the light-transmitting portion TP is, for example, white paint, but this is not limiting. In this embodiment, the colored material coating CML overlaps the light-transmitting portion TP and the masking portion MP of the light shield SS in the longitudinal direction. In detail, the bottom plate SUP can have a support frame Sf as shown in FIG. 15, which corresponds in position to the colored material coating CML. In this embodiment, the colored material coating CML overlaps the support frame Sf of the bottom plate SUP in the longitudinal direction, so that the colored material coating CML is masked by the support frame Sf of the bottom plate SUP from the perspective of the user. FIG. 14A ​​​​In the illustrated embodiment, the light from the LED light-emitting unit can be guided by the light guide plate LGP to pass beside the light-reducing pattern LRP corresponding to the first key KS-A, and emit a first color light WL upward from the light-transmitting area KC0 inside the keycap KCC of the first key KS-A. The first color light WL is, for example, white light. Furthermore, the light from the LED light-emitting unit can be guided by the light guide plate LGP to pass through the colored material coating CML, and emit a second color light CL, different from the first color light WL, upward from the light-transmitting area KC0 inside the keycap KCC of the second key KS-B and the boundary of the keycap KCC. That is, the first color light WL can be converted into the second color light CL after passing through the colored material coating CML. When the material of the colored material coating CML is red / green / blue ink, the second color light WL corresponds to red / green / blue light. Thus, through the design of the colored material coating CML, the backlit keyboard LKB can present a variety of light emission effects.

[0097] Reference to FIG. 14B Another embodiment of the backlight module BLM of the illustrated backlit keyboard LKB is configured with a colored material coating design, wherein FIG. 14B A top view of the illuminated keyboard LKB of this embodiment. FIG. 14A-14B A partial cross-sectional view of the backlit keyboard LKB of this embodiment.

[0098] like FIG. 2-6 As shown, the backlit keyboard LKB may have a first key KS-A and a second key KS-B, with a key gap G between the first key KS-A and the second key KS-B. The first key KS-A and the second key KS-B can be configured as the heat dissipation key KS described in the previous embodiment, and therefore can also be referred to as the first heat dissipation key and the second heat dissipation key. In this embodiment, the first key KS-A and the second key KS-B may, but are not limited to, be square keys (see reference). FIG. 3-5 As shown, the first key KS-A is, for example, the V key, and the second key KS-B is, for example, the C key adjacent to the V key. The first key KS-A and the second key KS-B can be located on the key circuit board MEM and the base plate SUP of the backlit keyboard LKB, with a backlight module BLM located below them. The backlight module BLM is located below the key circuit board MEM and the base plate SUP, and may include a light shield SS, a light guide plate LGP, a reflective layer REF, and a lamp board LCB stacked from top to bottom. The reflective layer REF can be located between the light guide plate LGP and the lamp board LCB. The lamp board LCB may contain one or more light-emitting units LED. The light-emitting units LED are located on one side of the first key KS-A and the second key KS-B (e.g., ). FIG. 3-5 (From the diagram, this is the right side); the light from the LED light-emitting unit can be guided by the light guide plate LGP and reflected by the reflective layer REF to be directed toward the first button KS-A and the second button KS-B (in the image). FIG. 14A-14B(From the perspective of the diagram, it is to the left).

[0099] like FIG. 14A As shown, the backlight module BLM can have a through-channel PC below the first button KS-A and the second button KS-B to serve as a heat dissipation channel for the heat-generating area HR, so that the first button KS-A and the second button KS-B can become heat dissipation buttons, and at least part of them can be connected to the heat dissipation channel. FIG. 14A The backlight module BLM has the same features as the heat dissipation button KS shown. That is, the backlight module BLM has a through-channel PC that symmetrically corresponds to the first button KS-A and the second button KS-B, and passes through the lamp plate LCB, light guide plate LGP, and light shield SS. The periphery of the through-channel PC is provided with light-reducing patterns LRP to block light, and a diffusion pattern DP (shown in...) is provided adjacent to the light-reducing patterns LRP. FIG. 14B The guide light illuminates the first button KS-A and the second button KS-B, with the dimming pattern LRP and the diffused pattern DP (shown in...). FIG. 3 A heat-reducing optical pattern group is formed, and the heat-reducing optical pattern groups corresponding to the first button KS-A and the second button KS-B have the same pattern.

[0100] like FIG. 14B As shown, the backlight module (BLM) may also have a colored material coating (CML). For example... FIG. 3 As shown, the colored material coating CML (represented by a background pattern) corresponds to the keycap projection area of ​​the key. It should be noted that... FIG. 14B The example of a colored material coating CML is shown using the C and V keys on the backlit keyboard LKB, but it does not represent that the colored material coating CML is only configured in this keyboard area. Furthermore, FIG. 3 As shown, the colored material coating CML generally overlaps the second button KS-B in the longitudinal direction. Further, the colored material coating CML overlaps the internal light-transmitting area KC0 of the second button KS-B in the longitudinal direction. Moreover, the colored material coating CML partially overlaps the button gap area G in the longitudinal direction (i.e., corresponding to the stacking direction of the components of the backlight module BLM), so that the light from the light-emitting unit LED can pass through the colored material coating CML earlier to change its color. The colored material coating CML can be disposed on the light-shielding plate SS and / or the light guide plate LGP. In this embodiment, the colored material coating CML is disposed on the upper and lower surfaces of the light guide plate LGP. The colored material coating CML can be a colored ink layer (e.g., a material using red, green, or blue ink), formed by printing and coating. In other feasible embodiments, the colored material coating CML can be disposed on the upper and / or lower surfaces of the light-shielding plate SS and / or the light guide plate LGP, as can be configured according to actual needs.

[0101] In detail, the light-shielding plate SS can be adopted as follows: FIG. 14B The pattern shown has a light-shielding frame (SSF). For example...FIG. 15A-15B The light shield plate SS is defined by its light shield frame SSF (shown in FIG. 15A ) to have a light transmission area TA, and the colored material coating CML is substantially overlapped with the light transmission area TA in the longitudinal direction. In addition, as shown in FIG. 15B , the colored material coating CML is partially overlapped with the light shield plate SS and the bottom plate SUP in the longitudinal direction. In detail, the light shield plate SS can have the aforementioned opaque masking portion MP and at the same time have a light transmission portion TP with reflective and semi-transparent characteristics. The masking portion MP is laminated with the light transmission portion TP. The masking portion MP is, for example, black paint, and the light transmission portion TP is, for example, white paint, but not limited thereto. The light transmission area TA is defined in the area surrounded by the light transmission portion TP and the masking portion MP. In this embodiment, the colored material coating CML is partially overlapped with the light transmission portion TP and the masking portion MP of the light shield plate SS in the longitudinal direction. In detail, the bottom plate SUP can have a support frame Sf as shown in FIG. 15A-15B . In this embodiment, the colored material coating CML is partially overlapped with the support frame Sf of the bottom plate SUP in the longitudinal direction, so that the periphery of the colored material coating CML is shielded by the support frame Sf of the bottom plate SUP in the user's overhead perspective. The support frame Sf of the bottom plate has a plurality of bottom plate holes SUPH. In this embodiment, the colored material coating CML is overlapped with these bottom plate holes SUPH in the longitudinal direction.

[0102] In the embodiment shown in FIG. 15A , the light rays of the light emitting unit LED can be guided by the light guide plate LGP to pass beside the light reduction pattern LRP corresponding to the first key KS-A and emit the first color light WL, for example, a white light, upward from the internal light transmission area KC0 of the key cap KCC of the first key KS-A. In addition, the light rays of the light emitting unit LED can be guided by the light guide plate LGP to pass through the colored material coating CML and pass beside the light reduction pattern LRP corresponding to the second key KS-B, and emit the second color light CL, which is different from the first color light WL, upward from the internal light transmission area KC0 of the key cap KCC of the second key KS-B and the boundary of the key cap KCC. That is, the first color light WL can be converted to the second color light CL after passing through the colored material coating CML. When the material of the colored material coating CML is selected as red / green / blue ink, the second color light WL corresponds to red / green / blue light. In this way, through the design of the colored material coating CML, the light emitting keyboard LKB can present the light emitting effect of multiple color lights.

[0103] Referring to FIG. 15B , which shows another embodiment of the backlight module BLM of the light emitting keyboard LKB configured with the colored material coating design, wherein FIG. 15B is a top view schematic diagram of the light emitting keyboard LKB of this embodiment, FIG. 15A-15BA partial cross-sectional view of the backlit keyboard LKB of this embodiment.

[0104] like FIG. 2-6 As shown, the backlit keyboard LKB may have a first key KS-A and a second key KS-B, with a key gap G between the first key KS-A and the second key KS-B. The first key KS-A may adopt the configuration of the heat dissipation key KS described in the previous embodiment, and therefore may also be called the first heat dissipation key. In this embodiment, the first key KS-A may be, but is not limited to, a square key, and the second key KS-B may be, but is not limited to, a multiplier key (see...). FIG. 15A-15B As shown, the first key KS-A is, for example, the Fn key, and the second key KS-B is, for example, the Ctrl key adjacent to the Fn key. The first key KS-A and the second key KS-B can be located on the key circuit board MEM and the base plate SUP of the backlit keyboard LKB, with a backlight module BLM located below them. The backlight module BLM is located below the key circuit board MEM and the base plate SUP, and may include a light shield SS, a light guide plate LGP, a reflective layer REF, and a lamp board LCB stacked from top to bottom. The reflective layer REF can be located between the light guide plate LGP and the lamp board LCB. The lamp board LCB may contain one or more light-emitting units LED. The light-emitting units LED are located on one side of the first key KS-A and the second key KS-B (e.g., ). FIG. 15A (From the diagram, this is the right side); the light from the LED light-emitting unit can be guided by the light guide plate LGP and reflected by the reflective layer REF to be directed toward the first button KS-A and the second button KS-B (in the image). FIG. 15A (From the perspective of the diagram, it is to the left).

[0105] like FIG. 15B As shown, a through-channel PC can be provided below the first button KS-A corresponding to the backlight module BLM, so that the first button KS-A can become a heat dissipation button, and at least part of it can be connected to the heat dissipation button. FIG. 3 The heat dissipation button KS shown has the same features. The through-channel PC is located on both sides of the first button KS-A, serving as a heat dissipation channel for the heat-generating area HR. The light-shielding plate SS may have a light-reducing pattern LRP; in this embodiment, the light-reducing pattern LRP corresponds to the first button KS-A and is located around the periphery of the through-channel PC to block light. In this embodiment, the light-reducing pattern LRP is a ring of black paint applied to the upper surface of the light-shielding plate SS, but this is not a limitation. In other feasible embodiments, it can also be applied to the lower surface of the light-shielding plate SS.

[0106] like FIG. 15B As shown, the backlight module (BLM) can have a colored material coating (CML). For example... FIG. 3 As shown, the colored material coating CML (represented by a background pattern) corresponds to the keycap projection area of ​​the key. It should be noted that... FIG. 15BThe colored material coating CML is illustrated by taking the keyboard block of the fn key and the ctrl key of the light-emitting keyboard LKB as an example, but it is not intended to mean that the colored material coating CML is only arranged in this keyboard block. Further, FIG. 3 As shown, the colored material coating CML is substantially overlapped with the second key KS-B in the longitudinal direction. Further, the colored material coating CML is overlapped with the internal light-transmitting region KC0 of the second key KS-B in the longitudinal direction. Moreover, the colored material coating CML is partially overlapped with the key gap region G in the longitudinal direction (i.e. the stacking direction of the elements of the backlight module BLM), so that the light of the light-emitting unit LED can be converted in color by the colored material coating CML as early as possible. The colored material coating CML can be arranged on the light-shielding plate SS and / or the light guide plate LGP. In the present embodiment, the colored material coating CML is arranged on the upper surface and the lower surface of the light guide plate LGP. The colored material coating CML can be a color ink layer (for example, a material selected from red, green or blue ink), which is formed by printing. In other possible embodiments, the colored material coating CML can be arranged on the upper surface and / or the lower surface of the light-shielding plate SS and / or the light guide plate LGP, which can be arranged as required.

[0107] In detail, the light-shielding plate SS can have a light-shielding frame SSF as shown in FIG. 15B . As shown in FIG. 16A-16B , the light-shielding plate SS defines a light-transmitting region TA by its light-shielding frame SSF (shown in FIG. 16A ), and the colored material coating CML is substantially overlapped with the light-transmitting region TA in the longitudinal direction. As shown in FIG. 16B , the colored material coating CML is partially overlapped with the light-shielding plate SS and the bottom plate SUP above it in the longitudinal direction. In detail, the light-shielding plate SS can have the aforementioned opaque shielding portion MP and the light-transmitting portion TP having the reflective and semi-transparent characteristics at the same time. The shielding portion MP and the light-transmitting portion TP are laminated. The shielding portion MP is, for example, black paint, and the light-transmitting portion TP is, for example, white paint, but is not limited thereto. The light-transmitting region TA is defined in the region surrounded by the light-transmitting portion TP and the shielding portion MP. In the present embodiment, the colored material coating CML is partially overlapped with the light-transmitting portion TP and the shielding portion MP of the light-shielding plate SS in the longitudinal direction. In detail, the bottom plate SUP can have a support frame Sf as shown in FIG. 16B . In the present embodiment, the colored material coating CML is partially overlapped with the support frame Sf of the bottom plate SUP in the longitudinal direction, so that the periphery of the colored material coating CML is shielded by the support frame Sf of the bottom plate SUP from the perspective of the user. The support frame Sf of the bottom plate has a plurality of bottom plate holes SUPH. In the present embodiment, the colored material coating CML is overlapped with these bottom plate holes SUPH in the longitudinal direction.

[0108] In FIG. 16AIn the shown embodiment, the light rays of the light emitting unit LED can be guided by the light guide plate LGP to pass by the light reduction pattern LRP corresponding to the first key KS-A and to emit a first color light WL, e.g. white light, upwardly from the internal light transmission region KC0 of the key cap KCC of the first key KS-A. In addition, the light rays of the light emitting unit LED can be guided by the light guide plate LGP to pass through the colored material coating CML and to emit a second color light CL, different from the first color light WL, upwardly from the internal light transmission region KC0 of the key cap KCC of the second key KS-B. That is, the first color light WL can be converted to the second color light CL after passing through the colored material coating CML. In addition, the light rays of the light emitting unit LED can also be guided by the light guide plate LGP to pass through the colored material coating CML and to emit the second color light CL upwardly from the boundary of the key cap KCC of the second key KS-B. When the material of the colored material coating CML is selected to be red / green / blue ink, the second color light WL corresponds to red / green / blue light. In this way, by the design of the colored material coating CML, the light emitting keyboard LKB can present the light emitting effect of multiple color lights.

[0109] Referring to FIG. 16B , another embodiment of the design of the backlight module BLM of the light emitting keyboard LKB is shown, in which FIG. 16B is a top view of the light emitting keyboard LKB of this embodiment, FIG. 16A-16B is a partial cross-sectional view of the light emitting keyboard LKB of this embodiment.

[0110] As FIG. 2-6 shown, the light emitting keyboard LKB can have a first key KS-A and a second key KS-B with a key gap region G between the first key KS-A and the second key KS-B. The first key KS-A can adopt the configuration of the heat dissipation key KS described in the foregoing embodiments, and can also be referred to as a first heat dissipation key. In this embodiment, the first key KS-A can but is not limited to be a square key, and the second key KS-B can but is not limited to be a multiple key (see FIG. 16A-16B shown, the first key KS-A is, for example, a Q key, and the second key KS-B is, for example, a tab key adjacent to the Q key). The first key KS-A and the second key KS-B can be arranged on the key circuit board MEM and the bottom plate SUP of the light emitting keyboard LKB, and a backlight module BLM is arranged below the key circuit board MEM and the bottom plate SUP. The backlight module BLM arranged below the key circuit board MEM and the bottom plate SUP can include, from top to bottom, a light shielding plate SS, a light guide plate LGP, a reflective layer REF, and a lamp plate LCB. The reflective layer REF can be arranged between the light guide plate LGP and the lamp plate LCB. The lamp plate LCB can include one or more light emitting units LED. The light emitting unit LED is arranged on one side of the first key KS-A and the second key KS-B (e.g., the left side of the first key KS-A and the second key KS-B in the shown embodiment). FIG. 16A(From the diagram, this is the right side); the light from the LED light-emitting unit can be guided by the light guide plate LGP and reflected by the reflective layer REF to be directed toward the first button KS-A and the second button KS-B (in the image). FIG. 16A (From the perspective of the diagram, it is to the left).

[0111] like FIG. 16B As shown, a through-channel PC can be provided below the first button KS-A corresponding to the backlight module BLM, so that the first button KS-A can become a heat dissipation button, and at least part of it can be connected to the heat dissipation button. FIG. 3 The heat dissipation button KS shown has the same features. The through-channel PC is located on both sides of the first button KS-A, serving as a heat dissipation channel for the heat-generating area HR. The light-shielding plate SS may have a light-reducing pattern LRP; in this embodiment, the light-reducing pattern LRP corresponds to the first button KS-A and is located around the periphery of the through-channel PC to block light. In this embodiment, the light-reducing pattern LRP is a ring of black paint applied to the upper surface of the light-shielding plate SS, but this is not a limitation. In other feasible embodiments, it can also be applied to the lower surface of the light-shielding plate SS.

[0112] like FIG. 3 As shown, the backlight module (BLM) can have a colored material coating (CML). For example... FIG. 3 As shown, the colored material coating CML (represented by a background pattern) corresponds to the keycap projection area of ​​the key. It should be noted that... FIG. 16B The example of a colored material coating CML is shown using the keyboard area containing the Q and Tab keys on the backlit keyboard LKB, but this does not mean that the colored material coating CML is only configured in this keyboard area. Furthermore, ​ As shown, the colored material coating CML roughly overlaps the second button KS-B in the longitudinal direction. Further, the colored material coating CML overlaps the internal light-transmitting area KC0 of the second button KS-B in the longitudinal direction. In this embodiment, the colored material coating CML is disposed on the upper surface of the button circuit board MEM, that is, the colored material coating CML is disposed above the backlight module BLM and located between the base plate SUP and the keycap KCC. The colored material coating CML can be a colored ink layer (e.g., using red, green, or blue ink), formed by printing and coating. In other feasible embodiments, the colored material coating CML can also be disposed on the lower surface of the button circuit board MEM, as can be configured according to actual needs.

[0113] In detail, the light-shielding plate SS may have the aforementioned opaque shielding portion MP and a light-transmitting portion TP that simultaneously possesses reflective and semi-transparent properties. The shielding portion MP may be, for example, black paint, while the light-transmitting portion TP may be, for example, white paint, but is not limited thereto. In detail, the light-shielding plate SS may adopt, as... ​The light shielding frame SS is defined by the light shielding frame SS (shown in ​ ) and the light transmission region TA. In the embodiment shown, the colored material coating CML overlaps the light transmission region TA in the longitudinal direction. In detail, the bottom plate SUP can have a support frame Sf as shown in ​ . The support frame Sf of the bottom plate SUP has a plurality of bottom plate holes SUPH. In the embodiment shown, the colored material coating CML overlaps the bottom plate holes SUPH in the longitudinal direction.

[0114] In the embodiment shown in ​ , the light rays of the light emitting unit LED can be guided by the light guide plate LGP to pass by the light reduction pattern LRP corresponding to the first key KS-A and to emit first color light WL, such as white light, upward from the internal light transmission region KC0 of the key cap KCC of the first key KS-A. In addition, the light rays of the light emitting unit LED can be guided by the light guide plate LGP to pass through the light transmission region TA and the bottom plate holes SUPH, and then pass through the colored material coating CML on the key circuit board MEM, and then emit second color light CL, which is different from the first color light WL, upward from the internal light transmission region KC0 of the key cap KCC of the second key KS-B. That is, the first color light WL can be converted to the second color light CL after passing through the colored material coating CML. In addition, the light rays of the light emitting unit LED are also guided by the light guide plate LGP to pass through the colored material coating CML and to emit the second color light CL upward from the boundary of the key cap KCC of the second key KS-B. When the material of the colored material coating CML is selected to be red / green / blue ink, the second color light WL corresponds to red / green / blue light. In this way, through the design of the colored material coating CML, the light emitting keyboard LKB can present a light emitting effect of multiple colors.

[0115] In summary, the embodiments described above, the present application is directed to the backlight module corresponding to some keys of the light emitting keyboard is configured with a colored material coating. In this way, when the light rays of the same light emitting unit of the backlight module pass through the colored material coating, the color of the light rays can be changed, thereby making the light emitting keyboard have the special effect of color light emission, without the need to set multiple light emitting units emitting different colors of light in the keyboard.

[0116] The above description is only the preferred embodiments of the present application, and any equivalent changes and modifications made within the scope of the present application are intended to be covered by the present application.

Claims

1. A backlight module for an illuminated keyboard, the illuminated keyboard comprising a first key and a second key, wherein a key gap area is provided between the first key and the second key, characterized in that, The backlight module includes: A light panel having light-emitting units; Light guide plate; and A light shield, wherein the light shield, the light guide plate and the lamp plate are stacked from top to bottom, and the light shield has a light-reducing pattern corresponding to the first button to block light; The backlight module has a colored material coating, which is disposed on the light shield and / or the light guide plate and overlaps the key gap area in the longitudinal direction. The light from the light-emitting unit is guided by the light guide plate to pass through the side of the light-reducing pattern and emits a first color light upward from the internal light-transmitting area of ​​the first key. The light from the light-emitting unit is guided by the light guide plate to pass through the colored material coating and emits a second color light different from the first color light upward from the internal light-transmitting area and boundary of the second key.

2. A backlight module for a backlit keyboard, the backlight keyboard comprising a first key and a second key, characterized in that, The backlight module includes: A light panel having light-emitting units; Light guide plate; and A light shield, wherein the light panel, the light guide plate, and the light shield are stacked from top to bottom; The backlight module has at least two through channels that symmetrically correspond to the first button and the second button and pass through the lamp plate, the light guide plate and the light shield. A light-reducing pattern is provided around the periphery of each of the at least two through channels to block light. At least two diffusion patterns are provided on the adjacent sides of the at least two light-reducing patterns corresponding to the periphery of the at least two through channels to guide light to illuminate the first button and the second button. The at least two light-reducing patterns and the at least two diffusion patterns form at least two heat-reducing optical pattern groups, and the at least two heat-reducing optical pattern groups corresponding to the first button and the second button have the same pattern. The backlight module has a colored material coating, which is disposed on the light shield and / or the light guide plate and overlaps the second button in the longitudinal direction. The light from the light-emitting unit is guided by the light guide plate to pass through the light-reducing pattern corresponding to the first button and emits a first color light upward from the internal light-transmitting area of ​​the first button. The light from the light-emitting unit is guided by the light guide plate to pass through the colored material coating and pass through the light-reducing pattern corresponding to the second button, and emits a second color light different from the first color light upward from the internal light-transmitting area and boundary of the second button.

3. A backlight module for an illuminated keyboard, the illuminated keyboard comprising a first key and a second key, characterized in that, The backlight module includes: A light panel having light-emitting units; Light guide plate; and A light shield, wherein the light shield, the light guide plate and the lamp plate are stacked from top to bottom, and the light shield has a light-reducing pattern corresponding to the first button to block light; The backlight module has a colored material coating that overlaps the second button in the vertical direction. The light from the light-emitting unit is guided by the light guide plate to pass through the side of the light-reducing pattern and emit a first color light upward from the internal light-transmitting area of ​​the first button. The light from the light-emitting unit is guided by the light guide plate to pass through the colored material coating and emit a second color light different from the first color light upward from the internal light-transmitting area of ​​the second button.

4. The backlight module for the illuminated keyboard according to claim 3, characterized in that, The light from the light-emitting unit is guided by the light guide plate to pass through the colored material coating and emit the second color light upward from the boundary of the second button.

5. The backlight module for the illuminated keyboard according to claim 2 or 3, characterized in that, The light-shielding panel has a light-shielding frame that defines a light-transmitting area, and the colored material coating overlaps longitudinally on the light-transmitting area.

6. The backlight module for the illuminated keyboard according to claim 2 or 3, characterized in that, The colored material coating overlaps longitudinally with the internal light-transmitting area of ​​the second button.

7. The backlight module for the illuminated keyboard according to claim 2 or 3, characterized in that, The first key and the second key are disposed on a base plate of the illuminated keyboard, the backlight module is disposed below the base plate, the base plate has multiple base plate holes, and the colored material coating overlaps the base plate holes in the longitudinal direction.

8. The backlight module for the illuminated keyboard according to any one of claims 1 to 3, characterized in that, The light-shielding plate has a light-transmitting portion and a shielding portion, which are stacked together, and the colored material coating overlaps the light-transmitting portion and the shielding portion in the longitudinal direction.

9. The backlight module for the illuminated keyboard according to any one of claims 1 to 3, characterized in that, The first button and the second button are disposed on a base plate of the backlit keyboard, the backlight module is disposed below the base plate, and the colored material coating overlaps longitudinally on a support frame of the base plate.

10. The backlight module for the illuminated keyboard according to any one of claims 1 to 3, characterized in that, The colored material coating is formed on the upper and / or lower surface of the light shield.

11. The backlight module for the illuminated keyboard according to any one of claims 1 to 3, characterized in that, The colored material coating is formed on the upper and / or lower surface of the light guide plate.

Images