TWM628461U - Key structure - Google Patents

Abstract

A key structure including a conductive bottom plate, a thin film circuit, a dome switch, a light-transmitting key cap, a light-emitting module, and a conductive reciprocating part. The thin film circuit is disposed on the conductive bottom plate. The dome switch is disposed on the thin film circuit and electrically contacts the thin film circuit. The light-transmitting keycap is disposed above the conductive bottom plate, and the thin film circuit and the dome switch are located between the light-transmitting keycap and the conductive bottom plate. The light-emitting module is disposed on a side of the light-transmitting key cap facing the conductive bottom plate and electrically contacts the dome switch. The conductive reciprocating member is disposed between the light-transmitting keycap and the conductive bottom plate, and electrically contacts the light emitting module and the conductive bottom plate.

Description

Key structure

The new creation is related to a key structure, and especially a key structure applied to light-emitting.

As a common physical input interface, keyboards are standard equipment for notebook computers. As users' requirements for operating experience continue to increase, a luminous keyboard has been proposed to satisfy the user's visual sensory experience. Generally speaking, an illuminated keyboard is composed of a keyboard module and a backlight module, and the keyboard module is disposed above the backlight module. Due to the gap between the casing and the keycap of the keyboard module, the light projected from the backlight module to the keycap is easily leaked to the outside world through the aforementioned gap, that is, light leakage or halo occurs around the keycap, which affects the user. operating experience.

The novel creation provides a key structure, which helps to improve the user's operating experience.

The novel creation proposes a key structure, which includes a conductive base plate, a thin-film circuit, a dome switch, a light-transmitting keycap, a light-emitting module and a conductive reciprocating member. The thin film circuit is arranged on the conductive base plate and includes a carrying part and a conductive circuit passing through the carrying part. The dome switch is disposed on the carrier portion, and has a bottom contacting the carrier portion, a top portion opposite to the bottom portion, and a conductive line extending from the bottom portion to the top portion. Conductive traces on the bottom of the dome switch electrically contact the conductive traces of the thin film circuit. The light-transmitting keycap is arranged above the conductive base plate, and the thin film circuit and the dome switch are located between the light-transmitting keycap and the conductive base plate. The light-emitting module is arranged on the side of the transparent keycap facing the conductive base plate, wherein the light-emitting module includes a circuit board and a light-emitting element electrically connected to the circuit board, and the conductive circuit on the top of the dome switch electrically contacts the circuit plate. The conductive reciprocating member is disposed between the light-transmitting keycap and the conductive base plate, and opposite ends of the conductive reciprocating member electrically contact the circuit board and the conductive base plate respectively.

This novel creation proposes another key structure, which includes a conductive base plate, a thin-film circuit, a conductive dome switch, a light-transmitting keycap, a light-emitting module, and a conductive reciprocating member. The thin film circuit is arranged on the conductive base plate. The conductive dome switch is disposed on the thin film circuit and electrically contacts the thin film circuit. The light-transmitting keycap is arranged above the conductive base plate, and the thin film circuit and the dome switch are located between the light-transmitting keycap and the conductive base plate. The light-emitting module is arranged on the side of the transparent keycap facing the conductive base plate, and the conductive dome switch electrically contacts the light-emitting module. The conductive reciprocating member is disposed between the light-transmitting keycap and the conductive base plate, and opposite ends of the conductive reciprocating member electrically contact the light-emitting module and the conductive base plate respectively.

This novel creation proposes another key structure, which includes a conductive base plate, a thin-film circuit, a conductive dome switch, a light-transmitting keycap, a patterned circuit, a light-emitting element and a conductive reciprocating member. The thin film circuit is arranged on the conductive base plate. The conductive dome switch is disposed on the thin film circuit and electrically contacts the thin film circuit. The light-transmitting keycap is arranged above the conductive base plate, wherein the thin film circuit and the conductive dome switch are located between the light-transmitting keycap and the conductive base plate, and the light-transmitting keycap has a pressing surface and a bottom surface opposite to the pressing surface. The patterned circuit is disposed on the bottom surface, and the conductive dome switch electrically contacts the patterned circuit. The light-emitting element is arranged on the bottom surface and is electrically connected to the patterned circuit. The conductive reciprocating member is disposed between the light-transmitting keycap and the conductive base plate, and opposite ends of the conductive reciprocating member electrically contact the patterned circuit and the conductive base plate respectively.

This novel creation proposes another key structure, which includes a conductive base plate, a thin-film circuit, a dome switch, a light-transmitting keycap, a patterned circuit, a light-emitting element and a conductive reciprocating member. The thin film circuit is arranged on the conductive base plate. The dome switch is disposed on the thin film circuit, and has a bottom contacting the thin film circuit, a top opposite to the bottom, and a conductive line extending from the bottom to the top. A conductive trace on the bottom of the dome switch electrically contacts the thin film circuit. The light-transmitting keycap is arranged above the conductive base plate, wherein the thin film circuit and the conductive dome switch are located between the light-transmitting keycap and the conductive base plate, and the light-transmitting keycap has a pressing surface and a bottom surface opposite to the pressing surface. The patterned circuit is disposed on the bottom surface, and the conductive circuit on the top of the dome switch is in electrical contact with the patterned circuit. The light-emitting element is arranged on the bottom surface and is electrically connected to the patterned circuit. The conductive reciprocating member is disposed between the light-transmitting keycap and the conductive base plate, and opposite ends of the conductive reciprocating member electrically contact the patterned circuit and the conductive base plate respectively.

Based on the above, in the key structure of the present invention, the light-emitting module is integrated on the light-transmitting keycap, so that the light emitted by the light-emitting module can directly pass through the light-transmitting keycap and be projected to the outside world, so as to avoid the light-transmitting keycap. Light leaks or halos are generated around the device to enhance the user's operating experience.

In order to make the above-mentioned features and advantages of the novel creation more obvious and easy to understand, the following embodiments are given and described in detail with the accompanying drawings as follows.

FIG. 1 is a schematic diagram of a button structure according to an embodiment of the present invention. FIG. 2 is a partial three-dimensional cross-sectional schematic diagram of the key structure of FIG. 1 along the section line I-I. FIG. 3 is a schematic diagram of the keycap and the light-emitting module of FIG. 1 from other viewing angles. Referring to FIG. 1 to FIG. 3 , in this embodiment, the key structure 100 can be a light-emitting key structure, and can be applied to a keyboard. Specifically, the key structure 100 includes a conductive base plate 110 , a thin film circuit 120 , a dome switch 130 , a light-transmitting keycap 140 , a light-emitting module 150 and a conductive reciprocating member 160 , wherein the light-transmitting keycap 140 is disposed above the conductive base plate 110 . , and the conductive reciprocating member 160 is disposed between the transparent keycap 140 and the conductive base plate 110 .

The conductive reciprocating member 160 may be a scissor foot structure made of conductive metal or conductive plastic to maintain the stability of the light-transmitting keycap 140 during lifting. The light emitting module 150 is integrated on the transparent keycap 140 , and the transparent keycap 140 may be transparent in its entirety or transparent in its entirety, or partially transparent or partially transparent. Further, the light-emitting module 150 is integrated directly under the light-transmitting keycap 140 , so the light emitted by the light-emitting module 150 can directly pass through the light-transmitting keycap 140 and be projected to the outside, avoiding the surrounding of the light-transmitting keycap 140 Generate light leaks or halos to enhance the user's operating experience.

The thin film circuit 120 , the dome switch 130 and the light emitting module 150 are disposed on the transparent keycap 140 and the conductive base plate 110 , wherein the thin film circuit 120 is disposed on the conductive base plate 110 , and the light emitting module 150 is disposed on the transparent keycap 140 . The dome switch 130 can support the transparent keycap 140 and the conductive reciprocating member 160 , or apply elastic force to the transparent keycap 140 to drive the transparent keycap 140 and the conductive reciprocating member 160 to lift and reset. In detail, the dome switch 130 may be a conductive dome switch. In one embodiment, the dome switch 130 may be made of conductive rubber. In another embodiment, the dome switch 130 may be formed with conductive lines. the rubber dome switch.

As shown in FIG. 1 to FIG. 3 , the transparent keycap 140 has a pressing surface 141 and a bottom surface 142 opposite to the pressing surface 141 , wherein the bottom surface 142 faces the conductive base 110 , and the light emitting module 150 is disposed on the bottom surface 142 . In detail, the dome switch 130 is disposed on the thin film circuit 120 and has a bottom 131 and a top 132 opposite to the bottom 131 . The bottom 131 of the dome switch 130 electrically contacts the thin film circuit 120 , and the top 132 of the dome switch 130 electrically contacts the light emitting module 150 . That is, the thin film circuit 120 is electrically connected to the light emitting module 150 through the dome switch 130 , and the thin film circuit 120 and the dome switch 130 serve as a power supply path for the light emitting module 150 . In addition, one end of the conductive reciprocating member 160 electrically contacts the conductive base plate 110 , and the other end of the conductive reciprocating member 160 electrically contacts the light emitting module 150 . That is to say, the light emitting module 150 is electrically connected to the conductive base plate 110 through the conductive reciprocating member 160 , and the conductive reciprocating member 160 and the conductive base plate 110 serve as the grounding path of the light emitting module 150 .

Further, the key structure 100 integrates the power supply path of the light emitting module 150 into the thin film circuit 120 and the dome switch 130 , and integrates the ground path of the light emitting module 150 into the conductive reciprocating member 160 and the conductive base plate 110 , so it has an extremely Excellent institutional integration. On the other hand, the current flows from the thin film circuit 120 to the dome switch 130, and then flows from the dome switch 130 to the light emitting module 150, so that the light emitting module 150 is energized to emit light. Subsequently, the current flows from the light emitting module 150 to the conductive reciprocating member 160 , and then flows from the conductive reciprocating member 160 to the conductive base plate 110 .

As shown in FIG. 2 and FIG. 3 , in this embodiment, the dome switch 130 is formed with a conductive line 133 extending from the bottom 131 to the top 132 , and the conductive line 133 located on the bottom 131 of the dome switch 130 is electrically Contact the thin film circuit 120 . Going further. The thin film circuit 120 includes a carrier portion 121 and a conductive line 122 passing through the carrier portion 121 , wherein the dome switch 130 is disposed on the carrier portion 121 , and the bottom portion 131 contacts the carrier portion 121 . On the other hand, the conductive traces 133 located on the bottom 131 of the dome switch 130 electrically contact the conductive traces 122 passing through the carrying portion 121 .

The light emitting module 150 may include a patterned circuit 151 and a light emitting element 152 , wherein the light emitting element 152 may be a light emitting diode, a micro light emitting diode or a sub-millimeter light emitting diode, and is electrically connected to the patterned circuit 151 . In detail, the conductive traces 133 located on the top 132 of the dome switch 130 are in electrical contact with the patterned traces 151 , so current can flow from the conductive traces 122 to the conductive traces 133 , and then from the conductive traces 133 to the patterned traces 151, and then flow from the patterned circuit 151 to the light-emitting element 152, so that the light-emitting element 152 is energized to emit light. Subsequently, the current flows from the light emitting element 152 to the patterned circuit 151 , then flows from the patterned circuit 151 to the conductive reciprocating member 160 , and then flows from the conductive reciprocating member 160 to the conductive base plate 110 .

That is to say, a part of the conductive line 122 , the conductive line 133 and the patterned line 151 can serve as the power supply path of the light-emitting element 152 , and another part of the patterned line 151 , the conductive shuttle 160 and the conductive base plate 110 can serve as the power supply path of the light-emitting element 152 . ground path.

As shown in FIGS. 2 and 3 , on the bottom surface 142 of the light-transmitting keycap 140 , the patterned circuit 151 extends from the dome switch 130 to the light-emitting element 152 , and extends from the light-emitting element 152 to the conductive shuttle 160 . That is, on the bottom surface 142 of the light-transmitting keycap 140 , the extending path of the patterned circuit 151 passes through the dome switch 130 , the light-emitting element 152 and the conductive reciprocating member 160 . For example, the portion of the patterned circuit 151 that contacts the dome switch 130 can be regarded as the starting point of the extension path, and the portion of the patterned circuit 151 that contacts the conductive reciprocating member 160 can be regarded as the end point of the extension path.

Further, the light emitting module 150 further includes a circuit board 153 , and the patterned circuit 151 is a part of the circuit board 153 . The circuit board 153 can be a flexible circuit board, and is attached to the bottom surface 142 of the transparent keycap 140 . Further, the circuit board 153 has a light-passing hole 153a, wherein the light-transmitting keycap 140 covers the light-passing hole 153a, and a part of the light-emitting element 152 (eg, the light-emitting surface) is located in the light-passing hole 153a, so that light can pass through the light-passing hole. 153a is injected into the light-transmitting keycap 140 .

In other embodiments, the light emitting module is composed of a patterned circuit and a light-emitting element, wherein the patterned circuit is directly formed on the bottom surface of the keycap, and the light-emitting element is disposed on the bottom surface of the keycap to be electrically connected to the patterned circuit. On the other hand, the patterned circuit may be a transparent conductive circuit or a circuit composed of other conductive materials.

As shown in FIG. 2 and FIG. 3 , in this embodiment, the patterned circuit 151 includes a first conductive contact 1511 , a second conductive contact 1512 and a third conductive contact 1513 , and the second conductive contact 1512 is located at the Between a conductive contact 1511 and a third conductive contact 1513 . Specifically, the second conductive contact 1512 and the first conductive contact 1511 are connected by a line, and similarly, the second conductive contact 1512 and the third conductive contact 1513 are connected by another line. More specifically, the conductive line 133 on the top 132 of the dome switch 130 electrically contacts the first conductive contact 1511 , and the light-emitting element 152 can be electrically connected to the second conductive contact 1512 by flip-chip bonding. In addition, the conductive shuttle 160 electrically contacts the third conductive contact 1513 .

To sum up, in the key structure of the present invention, the light-emitting module is integrated on the light-transmitting keycap, so that the light emitted by the light-emitting module can directly pass through the light-transmitting keycap and be projected to the outside, so as to avoid the light-transmitting keycap. Light leakage or halo is generated around the keycap to enhance the user's operating experience. On the other hand, the conductive path is composed of a thin-film circuit, a dome switch, a light-emitting module, a conductive reciprocating member and a conductive base plate, wherein the thin-film circuit is electrically connected to the light-emitting module through the dome switch, and the light-emitting module is reciprocated through the conductive The element is electrically connected to the conductive base plate. Further, the key structure of the present invention integrates the power supply path of the light emitting module into the thin film circuit and the dome switch, and integrates the ground path of the light emitting module into the conductive reciprocating member and the conductive base plate, so it has an excellent mechanism. degree of integration.

Although the present invention has been disclosed above with examples, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the new creation should be determined by the scope of the appended patent application.

100:Key structure 110: Conductive bottom plate 120: Thin Film Circuits 121: Bearing Department 122: Conductive Lines 130: Dome switch 131: Bottom 132: top 133: Conductive Lines 140: translucent keycap 141: Press the surface 142: Underside 150: Lighting module 151: Patterned Circuits 152: Light-emitting element 153: circuit board 153a: optical through hole 1511: The first conductive contact 1512: Second conductive contact 1513: Third conductive contact 160: Conductive reciprocating piece I-I: Section Line

FIG. 1 is a schematic diagram of a button structure according to an embodiment of the present invention. FIG. 2 is a partial three-dimensional cross-sectional schematic diagram of the key structure of FIG. 1 along the section line I-I. FIG. 3 is a schematic diagram of the keycap and the light-emitting module of FIG. 1 from other viewing angles.

100:Key structure

110: Conductive bottom plate

120: Thin Film Circuits

121: Bearing Department

122: Conductive Lines

130: Dome switch

131: Bottom

132: top

133: Conductive Lines

140: translucent keycap

141: Press the surface

142: Underside

150: Lighting module

151: Patterned Circuits

152: Light-emitting element

153: circuit board

153a: optical through hole

1511: The first conductive contact

1512: Second conductive contact

1513: Third conductive contact

160: Conductive reciprocating piece

Claims (7)

A key structure includes: a conductive base plate; a thin film circuit, which is arranged on the conductive base plate and includes a bearing part and a conductive circuit passing through the bearing part; a dome switch, which is arranged on the bearing part and has a a bottom, a top relative to the bottom and a conductive circuit extending from the bottom to the top, the conductive circuit located on the bottom of the dome switch electrically contacts the conductive circuit of the thin-film circuit; a light-transmitting keycap, The thin film circuit and the dome switch are located between the light-transmitting keycap and the conductive baseboard; the light-emitting module is arranged on the side of the light-transmitting keycap facing the conductive baseboard, The light-emitting module includes a circuit board and a light-emitting element electrically connected to the circuit board, and the conductive circuit on the top of the dome switch is in electrical contact with the circuit board; and a conductive reciprocating member is disposed on the transparent Between the optical key cap and the conductive base plate, the opposite ends of the conductive reciprocating member electrically contact the circuit board and the conductive base plate respectively. The key structure of claim 1, wherein the light-transmitting keycap has a pressing surface and a bottom surface opposite to the pressing surface, and the circuit board is attached to the bottom surface, the circuit board has a light-through hole, wherein the light-transmitting The key cap covers the light-passing hole, and a part of the light-emitting element is located in the light-passing hole. The key structure of claim 1, wherein the circuit board has a patterned circuit, and an extension path of the patterned circuit passes through the dome switch, the light-emitting element and the conductive reciprocating member. The button structure of claim 3, wherein the patterned circuit of the circuit board comprises a first conductive contact, a second conductive contact and a third conductive contact, and the second conductive contact is located at the first conductive contact Between the contact and the third conductive contact, the conductive circuit on the top of the dome switch electrically contacts the first conductive contact, the light-emitting element is electrically connected to the second conductive contact, and The conductive reciprocating member electrically contacts the third conductive contact. A key structure, comprising: a conductive base plate; a thin film circuit, disposed on the conductive base plate; a conductive dome switch, disposed on the thin film circuit, and electrically contacting the thin film circuit; above, and the thin film circuit and the conductive dome switch are located between the light-transmitting keycap and the conductive base plate; the light-emitting module is disposed on the side of the light-transmitting keycap facing the conductive base plate, and the conductive dome The switch electrically contacts the light-emitting module; and the conductive reciprocating member is disposed between the light-transmitting keycap and the conductive base plate, and opposite ends of the conductive reciprocating member electrically contact the light-emitting module and the conductive base plate respectively. A key structure, comprising: a conductive base plate; A thin-film circuit is disposed on the conductive base plate; a conductive dome switch is disposed on the thin-film circuit and electrically contacts the thin-film circuit: a light-transmitting keycap is disposed above the conductive base plate, wherein the thin-film circuit and the conductive The dome switch is located between the light-transmitting keycap and the conductive base plate, and the light-transmitting keycap has a pressing surface and a bottom surface opposite to the pressing surface; a patterned circuit is arranged on the bottom surface, and the conductive dome switch electrically contacting the patterned circuit; a light-emitting element, disposed on the bottom surface, and electrically connected to the patterned circuit; and a conductive reciprocating member, disposed between the light-transmitting keycap and the conductive base plate, and the conductive reciprocating The opposite ends of the component are respectively in electrical contact with the patterned circuit and the conductive base plate. A key structure, comprising: a conductive base plate; a thin film circuit disposed on the conductive base plate; a dome switch disposed on the thin film circuit and having a bottom contacting the thin film circuit, a top opposite to the bottom and extending from the bottom The conductive circuit to the top, the conductive circuit located on the bottom of the dome switch electrically contacts the thin film circuit; the light-transmitting keycap is arranged above the conductive base plate, wherein the thin film circuit and the dome switch is located between the light-transmitting keycap and the conductive base plate, and the light-transmitting keycap has a pressing surface and a bottom surface relative to the pressing surface; A patterned circuit is arranged on the bottom surface, and the conductive circuit located on the top of the dome switch is in electrical contact with the patterned circuit; a light-emitting element is arranged on the bottom surface and is electrically connected to the patterned circuit and a conductive reciprocating member, which is disposed between the light-transmitting keycap and the conductive base plate, and the opposite ends of the conductive reciprocating member respectively electrically contact the patterned circuit and the conductive base plate.

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