TW201824318A - Illuminated keyswitch and illuminated keyboard including such illuminated keyswitch - Google Patents

Abstract

The invention discloses an illuminated keyswitch and an illuminated keyboard including such illuminated keyswitch. The illuminated keyswitch according to the invention includes a keycap having a translucent region, a flexible circuit layer and at least one light-emitting diode die. The flexible circuit layer includes a flexible insulating film and at least one pair of leads formed on an upper surface of the insulating film. Each light-emitting diode die corresponds one pair of leads and includes a pair of bonding pads. Each light-emitting diode die is mounted on the insulating film and is via pair of bonding pads electrically connected to the corresponding pair of leads. Each light-emitting diode die emits a light to illuminate the translucent region of the key cap.

Description

 Illuminated button and illuminated keyboard including the same  

The invention relates to an illuminating button and an illuminating keyboard comprising the illuminating button, and in particular to a illuminating button using a light-emitting diode die instead of using the packaged illuminating diode element and An illuminated keyboard comprising the illuminated button.

The illuminated keyboard has been a common input peripheral device on the market. In the current backlight device for an illuminated keyboard, some prior art techniques involve arranging a large number of light sources (generally light emitting diodes) along one of the long sides or a short side of the light guide plate. In other prior art, the light guide plate has a through opening and the light source is placed in the opening of the light guide plate. However, in order to prevent the backlight from being away from the light source, there may be dark areas. This prior art not only employs a large number of light sources, but also requires a high-power light-emitting diode.

The light-emitting diodes used in the prior art described above are all packaged components having a certain height. Therefore, the above prior art backlight device for an illuminated keyboard is not conducive to the further thinning of the illuminated keyboard.

In addition, the backlight device of the prior art described above for an illuminated keyboard is currently only seen to emit a single color light emitting diode. Therefore, it is not possible to perform stylization for the color of a single illuminated button or an area of the illuminated keyboard, that is, the color of a single illuminated button can be varied, or different regions of the illuminated keyboard emit different colored lights.

Therefore, one technical problem to be solved by the present invention is to provide a light-emitting button using a light-emitting diode bare crystal and an illuminated keyboard including the same. Thereby, the illuminating button and the illuminating keyboard of the present invention can be further thinned and the power consumption required for illuminating is small. Even the color light of the illuminated button of the present invention can be varied, or different regions of the illuminated keyboard of the present invention emit different colored lights.

The illuminating button of a preferred embodiment of the present invention comprises a bottom plate, a key cap, a switch film layer, a flexible circuit layer and at least one light emitting diode bare crystal. The keycap has a light transmitting area and is movably coupled to the upper side of the bottom plate so as to move the keycap between the unpressed position and the pressed position with respect to the bottom plate. The switching film layer is placed on the bottom plate. The switching film layer contains a switch. When the keycap moves to the pressed position, the switch is actuated to trigger. The flexible circuit layer is disposed above or below the bottom plate. The flexible circuit layer includes a flexible insulating film and at least one pair of pins formed on the first upper surface of the flexible insulating film. Each of the light emitting diodes corresponds to one of the pair of pins and includes a pair of pads. Each of the light emitting diodes is fixed on the flexible circuit layer, and the pair of pads are electrically connected to the corresponding pair of pins. The first light emitted by each of the bare LEDs illuminates the light transmissive region.

Further, the illuminated button of the preferred embodiment of the present invention further comprises at least one protective cover. Each protective cover corresponds to one LED diode. Each protective cover is formed on the flexible circuit layer and covers its corresponding light-emitting diode die.

Further, the illuminating button of the preferred embodiment of the present invention further comprises a dimming film. The dimming film is disposed on the flexible circuit layer.

In one embodiment, the dimming film is a brightness enhancing film or a diffusing film.

Further, the illuminating button of the preferred embodiment of the present invention further comprises a first phosphor layer. A first phosphor layer is formed on the first bottom surface of the keycap. The first light illuminates the first phosphor layer and is down-converted into a second light by the first phosphor layer.

Further, the illuminating button of the preferred embodiment of the present invention further comprises a plurality of reflectors. Each of the reflectors corresponds to one LED dipole. Each of the reflective systems is formed on the flexible circuit layer and surrounds its corresponding light-emitting diode die to reflect the first light emitted by its corresponding light-emitting diode die.

In one embodiment, the location of the flexible circuit layer is located on the switching film layer. The switching film layer has a plurality of first holes. The flexible circuit layer has a plurality of second holes. Further, the illuminating button of the preferred embodiment of the present invention further includes a plurality of connecting members, a lifting mechanism, and a returning member. Each of the connecting members corresponds to a first hole and a second hole, and includes a fixing portion and a connecting portion. The connecting portion extends from the fixing portion. Each of the connecting members has its fixing portion passing through its corresponding second hole and its corresponding first hole, and is fixed to the bottom plate. The top end of the lifting mechanism is movably coupled to the keycap. The bottom end of the lifting mechanism is movably coupled to the connecting portions of the plurality of connecting members. The recovery element is disposed on the switching film layer. The return element provides the restoring force required for the keycap to return to the undepressed position.

In another embodiment, the position of the flexible circuit layer is located between the switching film layer and the bottom plate. The switching film layer has at least one first hollow portion. Each of the first hollow portions corresponds to one light emitting diode bare crystal. Each of the light-emitting diode bare crystals is below its corresponding first hollow portion. The switching film layer has a plurality of first holes. The flexible circuit layer has a plurality of second holes. Further, the illuminating button of the preferred embodiment of the present invention further includes a plurality of connecting members, a lifting mechanism, and a returning member. Each of the connecting members corresponds to a first hole and a second hole, and includes a fixing portion and a connecting portion. The connecting portion extends from the fixing portion. Each of the connecting members has its fixing portion passing through its corresponding second hole and its corresponding first hole, and is fixed to the bottom plate. The top end of the lifting mechanism is movably coupled to the keycap. The bottom end of the lifting mechanism is movably coupled to the connecting portions of the plurality of connecting members. The recovery element is disposed on the switching film layer. The return element provides the restoring force required for the keycap to return to the undepressed position.

In another embodiment, the position of the flexible circuit layer is located below the bottom plate. The switching film layer has at least one first hollow portion. The bottom plate has at least one second hollow. Each of the first hollow portions corresponds to one second hollow portion and one light emitting diode bare crystal. Each of the light emitting diodes is positioned below its corresponding first hollow portion and its corresponding second hollow portion. The switching film layer has a plurality of first holes. The bottom plate has a plurality of third holes. Further, the illuminating button of the preferred embodiment of the present invention further includes a plurality of connecting members, a lifting mechanism, and a returning member. Each of the connecting members corresponds to a first hole and a third hole, and includes a fixing portion and a connecting portion. The connecting portion extends from the fixing portion. Each of the connecting members has its fixing portion passing through its corresponding third hole and its corresponding first hole, and is fixed on the flexible circuit layer. The top end of the lifting mechanism is movably coupled to the keycap. The bottom end of the lifting mechanism is movably coupled to the connecting portions of the plurality of connecting members. The recovery element is disposed on the switching film layer. The return element provides the restoring force required for the keycap to return to the undepressed position.

An illuminated keyboard in accordance with a preferred embodiment of the present invention comprises a plurality of illuminated buttons in accordance with the present invention.

Different from the prior art, the light-transmitting keycap of the present invention does not use an encapsulated light-emitting diode element and instead uses a light-emitting diode bare crystal. Therefore, the illuminated keyboard of the present invention can be further thinned and consumes less power consumption than the prior art illuminated keyboard. Even the color light of the illuminated button of the present invention can be varied, or different regions of the illuminated keyboard of the present invention emit different colored lights.

The advantages and spirit of the present invention will be further understood from the following detailed description of the invention.

1‧‧‧Lighting button

10‧‧‧floor

102‧‧‧ Second Shortage Department

104‧‧‧ third hole

11‧‧‧Key Cap

112‧‧‧Light transmission area

114‧‧‧First top surface

116‧‧‧First bottom surface

118‧‧‧Connection structure

12‧‧‧Switch film layer

122‧‧‧ switch

1222‧‧‧Upper electrode block

1224‧‧‧lower electrode block

1226‧‧‧Wire

124‧‧‧Upper film circuit

1244‧‧‧ lower surface

1246‧‧ Third Third Department

125‧‧‧ first hole

126‧‧‧ under the thin film circuit

1262‧‧‧Second upper surface

127‧‧‧ First Shortage Department

128‧‧‧Isolation components

1282‧‧‧Fourth Department

129‧‧‧Interval space

13‧‧‧Soft circuit layer

132‧‧‧Flexible insulating film

1322‧‧‧ first upper surface

134a, 134b‧‧‧ pins

136‧‧‧Second hole

14‧‧‧Lighting diode bare crystal

142a, 142b‧‧‧ pads

15‧‧‧ protective cover

16‧‧‧ dimming diaphragm

162‧‧‧ lens department

17‧‧‧First phosphor layer

18‧‧‧Reflecting body

19‧‧‧Light absorber

20‧‧‧ Lifting mechanism

202‧‧‧ top

204‧‧‧ bottom

22‧‧‧Response components

24‧‧‧Second phosphor layer

26‧‧‧Connecting components

262‧‧‧ Fixed Department

264‧‧‧Connecting Department

3‧‧‧Lighting keyboard

L1‧‧‧First light

L2‧‧‧second light

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a light-emitting button in accordance with a preferred embodiment of the present invention.

2 is a development view of elements of a light-emitting button in accordance with a preferred embodiment of the present invention.

3 and 4 are cross-sectional views of the illuminating button of Fig. 1 taken along line A-A, respectively.

5 and 6 are top views of portions of the illuminated button of the present invention, respectively.

7 to 17 are cross-sectional views showing parts of the light-emitting button 1 of the present invention, respectively.

Figure 18 is a perspective view of an illuminated keyboard in accordance with a preferred embodiment of the present invention.

Referring to Figures 1 through 17, these figures schematically depict a light-emitting button 1 in accordance with a preferred embodiment of the present invention. 1 is a perspective view schematically showing a light-emitting button 1 of a preferred embodiment of the present invention. 2 is a schematic exploded view of a preferred embodiment of the illuminated button 1 of the present invention. 3 and 4 are cross-sectional views of the illuminated button 1 of Fig. 1 taken along line A-A, respectively. 5 and 6 are top views of some of the elements of the illuminated button 1 of the present invention, respectively. 7 to 17 are cross-sectional views showing parts of the light-emitting button 1 of the present invention, respectively.

As shown in FIG. 1, FIG. 2 and FIG. 3, a light-emitting button 1 according to a preferred embodiment of the present invention comprises a bottom plate 10, a key cap 11, a switch film layer 12, a flexible circuit layer 13, and at least one light-emitting diode bare. Crystal 14.

As shown in FIG. 3, the keycap 11 has a light transmitting region 112 and is movably coupled above and below the bottom plate 10 such that the keycap 11 moves relative to the bottom plate 10 between an unpressed position and a pressed position. In practical applications, as shown in FIG. 1 , the light transmissive region 112 presents a pattern on the first top surface 114 of the keycap 11 , the pattern representing one of a character, a number, a symbol, and a function key.

As also shown in FIG. 3, the switching film layer 12 is disposed on the bottom plate 10. The switching film layer 12 includes a switch 122. When the keycap 11 is moved to the depressed position, the switch 122 is actuated to trigger.

As also shown in FIG. 3, in one embodiment, the switching film layer 12 can be formed by the upper film circuit 124 and the lower film circuit 126, and the upper film circuit 124 and the lower film circuit 126 are separated by the isolation member 128. The switch 122 includes an upper electrode block 1222 and at least one lower electrode block 1224. In FIG. 3, only one lower electrode block 1224 is shown as a representative. The upper electrode block 1222 is formed on the lower surface 1244 of the upper film circuit 124, and the lower electrode block 1224 is formed on the second upper surface 1262 of the lower film circuit 126. Two isolation members 128 are disposed on both sides of the lower electrode block 1224, respectively. The isolation member 128 is disposed between the upper film circuit 124 and the lower film circuit 126 to form a space 129 such that the upper electrode block 1222 and the lower electrode block 1224 are not accidentally contacted before the user has pressed the key cap 11. . The upper electrode block 1222 and the lower electrode block 1224 of the switch 122 are disposed within the space 129. When the user's finger presses the keycap 11 to the pressing position, the upper electrode block 1222 is brought into contact with the lower electrode block 1224, and the switch 122 is actuated to be triggered.

The flexible circuit layer 13 is disposed above or below the bottom plate 10. For example, as shown in FIG. 3, the switching film layer 12 is provided on the substrate 10, and the flexible circuit layer 13 is provided on the switching film layer 12. The flexible circuit layer 13 includes a flexible insulating film 132 and at least one pair of pins (134a, 134b) formed on the first upper surface 1322 of the flexible insulating film 132. Each of the light emitting diodes 14 corresponds to one of the pair of pins (134a, 134b) (134a, 134b) and includes a pair of pads (142a, 142b).

Each of the light emitting diodes 14 is fixed on the flexible circuit layer 13, and the pair of pads (142a, 142b) are electrically connected to the corresponding pair of pins (134a, 134b). For example, as shown in FIG. 3, the pair of pads (142a, 142b) of each of the LEDs 14 are electrically connected to the pair of pins (134a, 134b) by a surface mount (surfacc mount). . Furthermore, as shown in FIG. 4, the pair of pads (142a, 142b) of each of the LEDs 14 are electrically connected to the pair of pins (134a, 134b) by wire bonding. connection. The components in FIG. 4 having the same reference numerals as those in FIG. 3 have the same or similar structures and functions, and will not be further described herein.

In one embodiment, the flexible insulating film 132 may be formed of polyethylene terephthalate or polyimide.

In one embodiment, at least one pair of pins (134a, 134b) may be formed of copper or a copper alloy.

As shown in FIGS. 3 and 4, further, the illuminated button 1 of the preferred embodiment of the present invention further includes at least one protective cover 15. Each of the protective covers 15 corresponds to one of the LEDs 14. Each of the protective covers 15 is formed on the flexible circuit layer 13 and covers its corresponding light-emitting diode die 14. The first light L1 emitted by each of the LEDs 14 is irradiated to the light-transmitting region 112.

In one embodiment, as shown in FIGS. 3 and 4, the position of the flexible circuit layer 13 is located on the switching film layer 12. The switching film layer 12 has a plurality of first holes 125. The flexible circuit layer 13 has a plurality of second holes 136. Further, the illuminated button 1 of the preferred embodiment of the present invention further includes a plurality of connecting members 26, a lifting mechanism 20, and a returning member 22. Each of the connecting members 26 corresponds to a first through hole 125 and a second through hole 136 , and includes a fixing portion 262 and a connecting portion 264 . The connecting portion 264 extends from the fixing portion 262. Each of the connecting members 26 has its fixing portion 262 passing through its corresponding second breaking hole 136 and its corresponding first breaking hole 125, and is fixed to the bottom plate 10. The top end 202 of the lifting mechanism 20 is movably coupled to the keycap 11. As shown in Figures 2, 3 and 4, the keycap 11 has a plurality of attachment structures 118 formed on the first bottom surface 116 for movably coupling with the top end 202 of the lift mechanism 20. The bottom end 204 of the lifting mechanism 20 is movably coupled to the connecting portion 264 of the plurality of connecting members 26. The return element 22 is disposed on the switch film layer 12. The return element 20 provides the restoring force required for the keycap 11 to return to the undepressed position. In the example shown in Figs. 3 and 4, the elevating mechanism 20 is a scissor lift mechanism, and the return element 22 is an elastic dome. In another preferred embodiment, the lifting mechanism 20 is a butterfly lifting mechanism and the return element 22 is a spring. In another preferred embodiment, the return element 22 is a magnetic element, and the structure of the illuminated button 1 of the present invention may also be a magnetic button.

In one embodiment, the plurality of connecting members 26 may be formed of a polymer material. The bottom plate 10 may be formed of a metal or polymer material. A plurality of connecting members 26 may be thermally fixed to the base plate 10.

In another embodiment, the plurality of connecting members 26 may be formed of a polymer material. The bottom plate 10 is also formed of a polymer material. The plurality of connecting members 26 and the bottom plate 10 may be integrally formed.

Further, as shown in FIG. 3 and FIG. 4, the luminous button 1 of the preferred embodiment of the present invention further includes a first phosphor layer 17. The first phosphor layer 17 may be formed on the first bottom surface 116 of the keycap 11. The first light L1 illuminates the first phosphor layer 17 and is down-converted into a second light L2 via the first phosphor layer 17.

In a specific embodiment, the first light L1 may be invisible light, and the second light L2 may be visible light. Thereby, if the first light L1 emitted by the LED diode 14 emitting the first light L1 is leaked from the gap between the key cap 11 and the bottom plate 10, since the first light is invisible, it is not As seen by the user, the aesthetics of the illuminated button 1 of the present invention is maintained.

In another preferred embodiment, each of the protective covers 15 may be doped with a plurality of uniformly distributed phosphor particles. The first light L1 illuminates the plurality of phosphor particles, and is reduced by the plurality of phosphor particles into the second light L2.

Please refer to FIG. 5. FIG. 5 is a top view showing only the flexible circuit layer 13 and the LED diode 14. As shown in FIG. 5, further, the illuminated button 1 of the preferred embodiment of the present invention further includes a plurality of reflectors 18. Each of the reflectors 18 corresponds to one of the LEDs 14. Each of the reflectors 18 is formed on the flexible circuit layer 13 and surrounds its corresponding LED diode 14 for reflecting the first light L1 emitted by its corresponding LED diode 14. The components in FIG. 5 having the same reference numerals as those in FIG. 3 have the same or similar structures and functions, and will not be further described herein. In one embodiment, each of the reflectors 18 can be formed by coating or printing a white ink.

Please refer to FIG. 6. FIG. 6 is a top view showing only the flexible circuit layer 13 and the LED diode 14. As shown in FIG. 6, further, the illuminating button 1 of the preferred embodiment of the present invention further includes a plurality of light absorbing bodies 19. Each of the light absorbing bodies 19 corresponds to one light emitting diode die 14. Each light absorbing body 19 is formed on the flexible circuit layer 13 and surrounds its corresponding light emitting diode die 14 for absorbing the first light ray L1 emitted by its corresponding light emitting diode die 14. The components in FIG. 6 having the same reference numerals as those in FIG. 3 have the same or similar structures and functions, and will not be further described herein. In one embodiment, each of the light absorbing bodies 19 can be formed by coating or printing a black or dark ink.

In FIGS. 5 and 6, three light emitting diode bare crystals 14 are shown in the drawing. The three light-emitting diodes 14 can emit the first light L1 of the same color, whereby the light-emitting button 1 of the present invention can uniformly illuminate the first light L1 with the light-transmitting region 112, or can adjust the light-transmitting region 112. brightness. The three LED dimers 14 can also emit the first light L1 of different colors, whereby the light-emitting button 1 of the present invention can change the color of the mixed light that illuminates the light-transmitting region 112.

Please refer to FIG. 7, which is a cross-sectional view of only a part of the components of the illuminated button 1 of the present invention. The flexible insulating film 132 of the flexible circuit layer 13 and the upper thin film circuit 124 of the switching film layer 12 are the same element. Thereby, the light-emitting button 1 of the present invention can be further thinned. In FIG. 7, elements having the same reference numerals as those in FIG. 3 have the same or similar structures and functions, and will not be described herein.

Also shown in FIG. 7, further, the illuminated button 1 of the present invention further includes at least one second phosphor layer 24. Each of the second phosphor layers 24 corresponds to one of the LED die 14 and a protective cover 15. Each of the second phosphor layers 24 is formed to cover the corresponding light emitting diode die 14 , and the corresponding protective cover 15 of each of the second phosphor layers 24 is further formed to cover the second phosphor layers 24 .

Please refer to FIG. 8. FIG. 8 is a cross-sectional view showing only a part of the components of the illuminated button 1 of the present invention. As shown in FIG. 8, in another embodiment, the position of the flexible circuit layer 13 may be located between the switching film layer 12 and the bottom plate 10. The switching film layer 12 has at least one first hollow portion 127. Each of the first hollow portions 127 corresponds to one of the light emitting diode bare crystals 14. Each of the light emitting diodes 14 is positioned below its corresponding first hollow portion 127. The components in FIG. 8 having the same reference numerals as those in FIG. 7 have the same or similar structures and functions, and will not be further described herein. The switching film layer 12 has a plurality of first holes 125. The flexible circuit layer 13 has a plurality of second holes 136. Further, the illuminated button 1 of the preferred embodiment of the present invention further includes a plurality of connecting members 26, a lifting mechanism 20, and a returning member 22. In FIG. 8, the lifting mechanism 20 and the returning element 22 are not shown. Please refer to the lifting mechanism 20 and the returning element 22 in FIGS. 3 and 4. Each of the connecting members 26 corresponds to a first through hole 125 and a second through hole 136 , and includes a fixing portion 262 and a connecting portion 264 . The connecting portion 264 extends from the fixing portion 262. Each of the connecting members 26 has its fixing portion 262 passing through its corresponding second breaking hole 136 and its corresponding first breaking hole 125, and is fixed to the bottom plate 10. The top end 202 of the lifting mechanism 20 is movably coupled to the keycap 11. As shown in FIG. 2, the keycap 11 has a plurality of attachment structures 118 formed on the first bottom surface 116 for movably coupling with the top end 202 of the lift mechanism 20. The bottom end 204 of the lifting mechanism 20 is movably coupled to the connecting portion 264 of the plurality of connecting members 26. The return element 22 is disposed on the switch film layer 12. The return element 22 provides the restoring force required for the keycap 11 to return to the undepressed position.

In one embodiment, the plurality of connecting members 26 may be formed of a polymer material. The bottom plate 10 may be formed of a metal or polymer material. A plurality of connecting members 26 may be thermally fixed to the base plate 10.

In another embodiment, the plurality of connecting members 26 may be formed of a polymer material. The bottom plate 10 is also formed of a polymer material. The plurality of connecting members 26 and the bottom plate 10 may be integrally formed.

Please refer to FIG. 9. FIG. 9 is a cross-sectional view showing only a part of the components of the illuminated button 1 of the present invention. As shown in FIG. 9, in another embodiment, the position of the flexible circuit layer 13 is located below the bottom plate 10. The switching film layer 12 has at least one first hollow portion 127. The bottom plate 10 has at least one second hollow portion 102. Each of the first hollow portions 127 corresponds to one second hollow portion 102 and one light emitting diode bare crystal 14. Each of the light emitting diodes 14 is positioned below its corresponding first hollow portion 127 and its corresponding second hollow portion 102. The components in FIG. 9 having the same reference numerals as those in FIG. 7 have the same or similar structures and functions, and will not be further described herein. The switching film layer 12 has a plurality of first holes 125. The bottom plate 10 has a plurality of third holes 104. Further, the illuminated button 1 of the preferred embodiment of the present invention further includes a plurality of connecting members 26, a lifting mechanism 20, and a returning member 22. In FIG. 9, the lifting mechanism 20 and the returning element 22 are not shown. Please refer to the lifting mechanism 20 and the returning element 22 in FIGS. 3 and 4. Each of the connecting members 26 corresponds to a first through hole 125 and a third through hole 104, and includes a fixing portion 262 and a connecting portion 264. The connecting portion 264 extends from the fixing portion 262. Each of the connecting members 26 has its fixing portion 262 passing through its corresponding third hole 104 and its corresponding first hole 125, and is fixed to the flexible circuit layer 13. The top end 202 of the lifting mechanism 20 is movably coupled to the keycap 11. As shown in FIG. 2, the keycap 11 has a plurality of attachment structures 118 formed on the first bottom surface 116 for movably coupling with the top end 202 of the lift mechanism 20. The bottom end 204 of the lifting mechanism 20 is movably coupled to the connecting portion 264 of the plurality of connecting members 26. The return element 22 is disposed on the switch film layer 12. The return element 22 provides the restoring force required for the keycap 11 to return to the undepressed position.

In one embodiment, the plurality of connecting members 26 may be formed of a polymer material. The plurality of connecting members 26 may be thermally fixed to the flexible circuit layer 13.

Please refer to FIG. 10, which is a cross-sectional view showing only a part of the components of the illuminated button 1 of the present invention. As shown in FIG. 10, in another embodiment, the position of the flexible circuit layer 13 is located on the base plate 10. The flexible insulating film 132 of the flexible circuit layer 13 and the lower film circuit 126 of the switching film layer 12 are the same element. Thereby, the light-emitting button 1 of the present invention can be further thinned. The upper film circuit 124 has at least one third hollow portion 1246. The isolation member 128 has at least one fourth hollow portion 1282. Each of the LEDs 14 corresponds to a third hollow portion 1246 and a fourth hollow portion 1282, and each of the LED diodes 14 is located at its corresponding third hollow portion 1246 and its corresponding fourth portion. Inside the hollow portion 1282. The components in FIG. 10 having the same reference numerals as those in FIG. 7 have the same or similar structures and functions, and will not be further described herein.

Please refer to FIG. 11, which is a cross-sectional view showing only a part of the components of the illuminated button 1 of the present invention. The embodiment shown in Fig. 11 is substantially the same as the embodiment shown in Fig. 10, that is, the flexible insulating film 132 of the flexible circuit layer 13 and the lower film circuit 126 of the switching film layer 12 are the same element. In Figure 11, two lower electrode blocks 1224 are shown. The switch 122 also includes at least one wire 1226, and at least one wire 1226 is formed on the second upper surface 1262 of the lower film circuit 126 in FIG. 11, only one wire 1226 is shown. Each of the wires 1226 corresponds to a lower electrode block 1224 and is electrically connected to its corresponding lower electrode block 1224. Corresponding third hollow portion 1246 and its corresponding fourth hollow portion 1282. The elements in FIG. 11 having the same reference numerals as those in FIG. 10 have the same or similar structures and functions, and will not be further described herein.

Referring to Figure 12, Figure 12 is a cross-sectional view of only a portion of the components of the illuminated button 1 of the present invention. As shown in FIG. 12, in another embodiment, the position of the flexible circuit layer 13 is located on the base plate 10. The flexible circuit layer 13 and the isolation member 128 are the same component. That is, the position where the flexible circuit layer 13 is disposed is between the upper film circuit 124 and the lower film circuit 126. Thereby, the light-emitting button 1 of the present invention can be further thinned. The upper film circuit 124 has at least one third hollow portion 1246. Each of the LED die 14 corresponds to a third hollow portion 1246, and each of the LED diodes 14 is positioned within its corresponding third hollow portion 1246. The components in Fig. 120 having the same reference numerals as those in Fig. 7 have the same or similar structures and functions, and will not be further described herein.

As shown in FIG. 3, FIG. 4, FIG. 7, FIG. 8, and FIG. 9, the light-emitting button 1 of the preferred embodiment of the present invention further includes a light-adjusting film 16. The dimming diaphragm 16 may be disposed on the flexible circuit layer 13.

In one embodiment, the dimming diaphragm 16 can be a brightness enhancing diaphragm.

In another embodiment, the dimming diaphragm 16 can be a diffuser diaphragm. The dimming film 16 as a diffusion film includes at least one lens portion 162. Each of the lens portions 162 corresponds to one of the LED diodes 14 and is positioned above its corresponding LED diode 14, as shown in FIGS. 3, 4, 7, 8, and 9.

Referring to Figures 13 through 17, Figures 13 through 17 are cross-sectional views, respectively, of only some of the elements of the illuminated button 1 of the present invention. In practical applications, the pattern of the light-transmitting region 112 is complex and different, and the position of the LED diode 14 can be limited. In order to effectively apply the luminous efficiency of the LED diode 14, the dimming film 16 is used. The lens portion 162 corresponding to each of the light-emitting diode bare crystals 14 is appropriately shaped. For example, as shown in FIG. 13 , three light-emitting diode bare crystals 14 are adjacent to each other, and the light-adjusting film 16 corresponds to a portion of the left-emitting diode diode 14 having no lens portion 162 , and the light-adjusting film 16 corresponds to the intermediate light-emitting portion 2 . The portion of the polar body die 14 has an inverted V-shape and faces the lens portion 162 of the light-emitting diode die 14 , and the portion of the light-adjusting film 16 corresponding to the light-emitting diode die 14 has a high and low undulation and faces the light-emitting diode The lens portion 162 of the polar body die 14. As shown in FIG. 14 , the three LEDs 14 are adjacent to each other, and the portion of the dimming film 16 corresponding to the adjacent three LEDs 14 has continuous high and low undulations and faces the LEDs. The lens portion 162 of 14. Thereby, the dimming film 16 can guide the first light L1 emitted by the LED die 14 to the corresponding portion of the light transmitting region 112.

As shown in FIG. 15, FIG. 16, and FIG. 17, the illuminating button 1 of the present invention is a illuminating button that can be programmed to change the illuminating color, and a plurality of illuminating diodes 14 are grouped into a cluster. In FIG. 15, three LED dipoles 14 are clustered, three LED dipoles 14 are adjacent to each other, and the dimming diaphragm 16 corresponds to the left cluster LED dilute 14 portion. The convex portion of the light-emitting diode bare crystal 14 is away from the lens portion 162 of the bare diode 14 of the light-emitting diode, and the portion of the light-adjusting film 16 corresponding to the intermediate cluster light-emitting diode bare 14 has three light-emitting diodes The convex portion of the crystal 14 faces the lens portion 162 of the LED diode 14 , and the portion of the dimming diaphragm 16 corresponding to the right cluster of the LED diode 14 has a convex surface covering the three LED dimers 14 and is away from The lens portion 162 of the LED die 14 is illuminated. Thereby, the dimming film 16 can guide the mixed light emitted by the LED diode 14 to the corresponding portion of the light transmitting region 112.

In FIG. 16, three LED dipoles 14 are clustered, three LED dipoles 14 are adjacent to each other, and the dimming diaphragm 16 has three portions corresponding to the left cluster LED diode 14. The lens portion 162 of the light-emitting diode bare crystal 14 and the lens portion 162 of the light-emitting diode bare crystal 14 are respectively covered, and the portion of the light-adjusting film 16 corresponding to the intermediate cluster light-emitting diode bare crystal 14 has three light-emitting portions respectively. The convex portion of the diode bare crystal 14 faces the lens portion 162 of the LED diode 14 , and the portion of the dimming diaphragm 16 corresponding to the right cluster of the LED diode 14 has three LEDs respectively covering a bare LED The convex surface of the crystal 14 is away from the lens portion 162 of the LED die 14. Similarly, the dimming film 16 can guide the mixed light emitted by the LEDs 14 to the corresponding portions of the light-transmitting region 112.

In FIG. 17, three light-emitting diode bare crystals 14 are clustered, three light-emitting diode bare crystals 14 are adjacent to each other, and the light-adjusting film 16 corresponds to the left cluster light-emitting diode bare crystal 14 portion having three covers. The illuminating diodes 14 have continuous undulations and are away from the lens portion 162 of the LEDs 14 , and the portion of the dimming film 16 corresponding to the intermediate cluster illuminating diodes 14 has three LEDs The continuous high and low undulations of the bulk bare crystal 14 face the lens portion 162 of the LED diode 14 , and the portion of the dimming diaphragm 16 corresponding to the right cluster of the LED diode 14 has three LED dice 14 The continuous high and low undulations are away from the lens portion 162 of the LED die 14. Thereby, the dimming film 16 can guide the mixed light emitted by the LED diode 14 to the corresponding portion of the light transmitting region 112.

Referring to FIG. 18, FIG. 18 is a perspective view schematically showing an illuminated keyboard 3 of a preferred embodiment of the present invention. As shown in Fig. 17, a luminous keyboard 3 according to a preferred embodiment of the present invention comprises a plurality of the above-described luminous buttons 1 of the present invention.

From the above detailed description of the present invention, it can be clearly understood that the illuminating button 1 of the present invention uses the illuminating diode die 14 instead of the packaged illuminating diode element used in the prior art. Since the heights of the packaged light-emitting diode element and the light-emitting diode die 14 are greatly different, the light-emitting button 1 and the illuminated keyboard 3 of the present invention can be further thinned. Moreover, the illuminated keyboard 3 of the present invention does not have the backlight device using the light guide plate of the prior art, so the power of the LED diode 14 used is relatively small, and therefore, the illuminated keyboard 3 of the present invention is illuminated. Less power consumption is required.

The features and spirit of the present invention are intended to be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents that are within the scope of the invention as claimed. Therefore, the scope of the patent application of the present invention should be construed broadly in the light of the above description, so that it covers all possible changes and arrangements.

Claims (27)

 An illuminated button comprises: a bottom plate; a key cap having a light transmissive area and movably connected above and below the bottom plate, such that the key cap is pressed against the bottom plate at an unpressed position Moving between positions; a switch film layer is disposed on the bottom plate, the switch film layer includes a switch, wherein when the key cap moves to the pressed position, the switch is actuated to trigger; a soft circuit layer Provided above or below the bottom plate, the flexible circuit layer includes a flexible insulating film and at least one pair of pins formed on a first upper surface of the flexible insulating film; and at least one light emitting diode a bare crystal, each of the light emitting diodes is corresponding to at least one of the pair of pins and includes a pair of pads, each of which is fixed on the flexible circuit layer and The solder pad is electrically connected to the corresponding pair of pins; wherein each of the light emitting diodes emits a first light that illuminates the light transmitting region.    The illuminating button of claim 1, further comprising: at least one protective cover, each protective cover corresponding to one light emitting diode bare crystal, each protective cover being formed on the flexible circuit layer and covering the corresponding light emitting Polar body bare crystal.    The illuminating button of claim 1, further comprising a dimming film disposed on the flexible circuit layer.    The illuminating button of claim 3, wherein the dimming film is a brightness enhancing film or a diffusion film.    The illuminating button of claim 3, wherein the dimming film comprises at least one lens portion, each lens portion corresponding to one of the illuminating diodes and positioned above the corresponding illuminating diode dies.    The illuminating button of claim 1, further comprising a first phosphor layer formed on a first bottom surface of the keycap, the first light illuminating the first phosphor layer, A phosphor layer is down-converted into a second light.    The illuminating button of claim 6, wherein the first ray is an invisible light and the second ray is a visible light.    The illuminating button of claim 2, wherein each of the protective covers is doped with a plurality of uniformly distributed phosphor particles, the first light illuminating the plurality of phosphor particles, and the plurality of phosphor particles are lowered The frequency is converted into a second light.    The illuminating button of claim 2, further comprising at least one second phosphor layer, each of the second phosphor layers corresponding to one of the LED diodes and a protective cover, each of the second phosphor layers being formed Covering the corresponding LED dipoles, and a corresponding protective cover of each of the second phosphor layers is formed to cover the second phosphor layer.    The illuminating button of claim 1, further comprising a plurality of reflectors, each of the reflectors corresponding to one of the illuminating diodes, each of the reflective systems being formed on the flexible circuit layer and surrounding the corresponding illuminating diode The bare crystal is used to reflect the first light emitted by the corresponding light emitting diode die.    The illuminating button of claim 1, further comprising a plurality of light absorbing bodies, each of the light absorbing bodies corresponding to one light emitting diode bare crystal, each light absorbing system being formed on the flexible circuit layer and surrounding the corresponding light emitting diode The bare crystal is configured to absorb the first light emitted by the corresponding light emitting diode die.    The illuminating button of claim 1, wherein the flexible insulating film is formed of polyethylene terephthalate or polyimine.    The illuminating button of claim 11, wherein the at least one pair of pins are selected from the group consisting of copper or a copper alloy.    The illuminating button of claim 1, wherein the position of the flexible circuit layer is located on the switch film layer, the switch film layer has a plurality of first holes, and the flexible circuit layer has a plurality of second breaks. The light-emitting button further includes: a plurality of connecting members, each of the connecting members corresponding to a first hole and a second hole and comprising a fixing portion and a connecting portion, the connecting portion extending from the fixing portion a connecting member is fixed to the bottom plate by its fixing portion through its corresponding second hole and its corresponding first hole; and a lifting mechanism, a top end of the lifting mechanism is movably connected to the key cap, a bottom end of the lifting mechanism is movably connected to the connecting portion of the plurality of connecting members; and a returning element is disposed on the switch film layer, the returning element providing the key cap required to return to the unpressed position Resilience.    The illuminating button of claim 13, wherein the plurality of connecting members are formed of a polymer material, and the plurality of connecting members are thermally fixed to the bottom plate.    The illuminating button of claim 13, wherein the plurality of connecting members are integrally formed with the bottom plate.    The illuminating button of claim 13, wherein the switch film layer further comprises an upper film circuit, a lower film circuit and an isolating member, the isolating member isolating the upper film circuit from the lower film circuit, the switch comprises An upper electrode block and at least one lower electrode block formed on a lower surface of the upper film circuit, the at least one lower electrode block being formed on a second upper surface of the lower film circuit The flexible insulating film is the same component as the upper thin film circuit.    The illuminating button of claim 1, wherein the position of the flexible circuit layer is located below the bottom plate, the switch film layer having at least one first hollow portion, the bottom plate having at least one second hollow portion, each A first hollow portion corresponds to a second hollow portion and a light emitting diode die, and each of the light emitting diodes is positioned below its corresponding first hollow portion and its corresponding second hollow portion.    The illuminating button of claim 18, wherein the switch film layer has a plurality of first holes, the bottom plate has a plurality of third holes, the illuminating button further comprises: a plurality of connecting members, each connecting member corresponding to one a first hole and a third hole and comprising a fixing portion and a connecting portion extending from the fixing portion, each connecting member passing through the fixing portion thereof through the corresponding third hole and Corresponding first hole and fixed on the flexible circuit layer; a lifting mechanism, one end of the lifting mechanism is movably connected to the key cap, and one bottom end of the lifting mechanism is movably connected to the plurality of connecting members a connecting portion; and a returning member disposed on the switching film layer, the returning member providing a restoring force required for the keycap to return to the undepressed position.    The illuminating button of claim 19, wherein the plurality of connecting members are formed of a polymer material, and the plurality of connecting members are thermally fixed to the flexible circuit layer.    The illuminating button of claim 1, wherein the position of the flexible circuit layer is located between the switch film layer and the bottom plate, the switch film layer having at least one first hollow portion, each of which is first hollowed out The portion corresponds to one LED dipole, and each of the LED dipoles is below the corresponding first hollow portion.    The illuminating button of claim 21, wherein the switch film layer has a plurality of first holes, the flexible circuit layer has a plurality of second holes, the illuminating button further comprising: a plurality of connecting members, each connecting member Corresponding to a first hole and a second hole and comprising a fixing portion and a connecting portion, the connecting portion extends from the fixing portion, and each connecting member passes through the corresponding second hole with its fixing portion And a corresponding first hole and fixed to the bottom plate; a lifting mechanism, a top end of the lifting mechanism is movably connected to the key cap, and a bottom end of the lifting mechanism is movably connected to the plurality of connecting members a connecting portion; and a returning member disposed on the switching film layer, the returning member providing a restoring force required for the keycap to return to the undepressed position.    The illuminating button of claim 22, wherein the plurality of connecting members are formed of a polymer material, and the plurality of connecting members are thermally fixed to the bottom plate.    The illuminating button of claim 22, wherein the plurality of connecting members are integrally formed with the bottom plate.    The illuminating button of claim 1, wherein the switching film layer comprises an upper film circuit, a lower film circuit and an isolating member, the isolating member isolating the upper film circuit from the lower film circuit, the switch comprises An upper electrode block and at least one lower electrode block formed on a lower surface of the upper film circuit, the at least one lower electrode block being formed on a second upper surface of the lower film circuit The flexible insulating film and the lower film circuit are the same component, and the position of the flexible circuit layer is located on the bottom plate, the upper film circuit has at least one third hollow portion, and the isolating member has At least one fourth hollow portion, each of the light emitting diodes corresponding to a third hollow portion and a fourth hollow portion, each of the light emitting diodes being in the corresponding third hollow portion and corresponding thereto Within the fourth hollow.    The illuminating button of claim 1, wherein the switching film layer comprises an upper film circuit, a lower film circuit and an isolating member, the isolating member isolating the upper film circuit from the lower film circuit, the switch comprises An upper electrode block and at least one lower electrode block formed on a lower surface of the upper film circuit, the at least one lower electrode block being formed on a second upper surface of the lower film circuit The position of the flexible circuit layer is located between the upper film circuit and the lower film circuit, the flexible circuit layer and the isolation member are the same component, and the upper film circuit has at least one third hollow portion Each of the light emitting diodes corresponds to a third hollow portion, and each of the light emitting diodes is positioned in its corresponding third hollow portion.    An illuminated keyboard comprising a plurality of illuminated keys as claimed in any one of claims 1 to 26.