TWM467932U - Membrane circuit layer and light-emitting keyboard - Google Patents

Abstract

A membrane circuit layer is provided. The membrane circuit layer includes a first membrane layer, a second membrane layer and a light-emitting device. The first membrane layer has a first surface and a second surface opposed to the first surface. The second membrane layer has a third surface and a fourth surface opposed to the third surface. The light-emitting device is disposed on the second surface of the first membrane layer, wherein the second surface faces the third surface and the first surface is a surface receiving an external force.

Description

Thin film circuit layer and its illuminated keyboard

The present invention relates to an illuminated keyboard, and more particularly to a thin film circuit layer of an illuminated keyboard.

In terms of current personal computer usage habits, the keyboard is one of the indispensable input devices for entering text, symbols or numbers. With the gradual popularization of computers, the development of buttons and keyboards today focuses on the sensitivity of their buttons in addition to the general input functions.

Under the prior art, when the user presses the key cap, the key cap will press the upper layer of the intermediate layer via the elastic body, and the conductive contact of the upper layer passes through the through hole on the intermediate layer to contact the conductive connection of the lower layer. Point, which in turn generates a corresponding word key signal and transmits the keyboard via the circuit. However, in the case where some keyboards have light-emitting elements inside, when the user presses around the corners or corners of the keycaps, the elastic body may not be easily turned on due to the blocking of the light-emitting elements, thereby causing the conductive contacts to be turned on, thereby causing Touch sensitivity is poor.

The novel embodiment provides a thin film circuit layer including a first thin film layer, a second thin film layer, and a light emitting element. The first film layer has opposing first and second surfaces. The second film layer has opposing third and fourth surfaces. The light emitting element is disposed on the second surface of the first film layer, wherein the second surface is facing the third surface, and the first surface is a receiving external force surface.

In one embodiment of the present invention, the second film layer has The second hole is broken so that at least a portion of the light emitting element penetrates the second hole.

In one embodiment of the present invention, the first film layer and the second film layer are made of a transparent material.

In one embodiment of the present invention, the light-emitting element is a light-emitting diode.

In one embodiment of the present invention, the thin film circuit layer further includes a power supply circuit disposed on the second surface of the first film layer, and the power supply circuit is electrically connected to the light emitting element.

In one embodiment of the present invention, the light-emitting element described above is disposed on the power supply circuit in a surface-adhesive manner.

In one embodiment of the present invention, the thin film circuit layer further includes a barrier film layer having opposite fifth and sixth surfaces, the isolating film layer being disposed between the first film layer and the second film layer, and isolated The film layer has a third hole so that at least a portion of the light emitting element penetrates the third hole.

In one embodiment of the present invention, the first film layer has a first hole, and at least a portion of the light-emitting element does not penetrate the first hole.

The new embodiment further provides an illuminated keyboard, the illuminated keyboard comprising a bottom plate, a thin film circuit layer and a key cap. The thin film circuit layer and the key cap are disposed on the bottom plate.

In summary, the thin film circuit layer and the illuminating keyboard of the present invention are configured to dispose the illuminating element on the second surface of the first film layer, so that when the corner or the periphery of the key cap receives an external force, the film The circuit layer is still sensitive to the effect of this external force, so that subsequent signal processing can be sensitively performed.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings related to the present invention, but such descriptions and The drawings are only intended to illustrate the invention, and are not intended to limit the scope of the invention.

Various illustrative embodiments are described more fully hereinafter with reference to the accompanying drawings. The present inventive concept may be embodied in many different forms and should not be construed as being limited to the illustrative embodiments set forth herein. Rather, these exemplary embodiments are provided so that this description will be thorough and complete, and the scope of the inventive concept will be fully conveyed by those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Similar numbers always indicate similar components.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, such elements are not limited by the terms. These terms are used to distinguish one element from another. Thus, a first element discussed below could be termed a second element without departing from the teachings of the novel. As used herein, the term "and/or" includes any of the associated listed items and all combinations of one or more.

[Embodiment of illuminated keyboard]

Please refer to FIG. 1. FIG. 1 is an exploded perspective view of an illuminated keyboard according to an embodiment of the present invention. As shown in FIG. 1, the illuminated keyboard 10 includes a keycap 11, a support structure 12, an elastic thin layer 13, a thin film circuit layer 14 and a bottom plate 15, wherein the thin film circuit layer 14 is disposed on the bottom plate 15, and the key cap 11 is disposed on the thin film circuit. The layer 14 is on the bottom plate 15. It should be noted that, for convenience of description, the plurality of keycaps of FIG. 1 only show one keycap 11 as a representative, and the plurality of support structures of FIG. 1 only show one support structure 12 as a representative, and this is not intended to limit the present. real Embodiments, which are common in the art, should be analogized to embodiments of a plurality of keycaps and a plurality of support structures. The support structure 12 includes a first support frame 121 and a second support frame 122. The second support frame 122 is pivotally connected to the first support frame 121 to form a scissor support structure. The elastic thin layer 13 is made of a plastic material, and a plurality of elastic bodies 135 are disposed on the elastic thin layer 13.

The thin film circuit layer 14 of the present embodiment can be made of polyethylene terephthalate (PET) or a polyester film, so that the thin film circuit layer 14 has a transparent property, so that light is easily penetrated. In the present embodiment, the thin film circuit layer 14 has a three-layer structure, that is, the thin film circuit layer 14 includes the first thin film layer 110, the isolation thin film layer 120, and the second thin film circuit layer 130. Generally, the thin film isolation layer 120 serves as an insulating layer for isolating the circuits of the first thin film layer 110 and the second thin film layer 130. In another embodiment, the thin film circuit layer 14 in the illuminated keyboard 10 has a two-layer structure, that is, the thin film circuit layer 14 includes only the first thin film layer 110 and the second thin film layer 130, and the first thin film layer 110 and The circuit isolation on the second film layer 130 is coated with a transparent adhesive for isolation.

The illuminated keyboard 10 of the present disclosure can improve the sensitivity of the external force touch when the keycap 11 is subjected to an external force by the three-layer structure or the two-layer structure of the thin film circuit layer 14, that is, when the key is When the circumference or corner of the cap 11 is touched by an external force, it can also be sensitively transmitted through the elastic body 135 to transmit the external force to the thin film circuit layer so that the illuminated keyboard can react to the external force. It is worth mentioning that the flattening of the three-layer structure or the two-layer structure of the thin film circuit layer 14 means that there is no component or a part of the component between the thin film circuit layer 14 and the elastic thin layer 13, so that the keycap 11 can It is more sensitive to the touch of external force in its surrounding corners.

In order to explain in more detail the thin film circuit layer 14 of the present disclosure Structures, at least one of the various embodiments will be further described below.

In the following various embodiments, portions different from the above-described embodiment of Fig. 1 will be described, and the remaining omitted portions are the same as those of the above-described embodiment of Fig. 1. In addition, for the sake of convenience, like reference numerals or numerals indicate similar elements.

[An embodiment of a thin film circuit layer]

In order to clearly disclose the disclosure, please refer to FIG. 1 to FIG. 3 simultaneously. FIG. 2 is a partially enlarged perspective view of the thin film circuit layer of FIG. 3 is a schematic cross-sectional view of a three-layer thin film circuit layer in accordance with an embodiment of the present invention. The thin film circuit layer 14 includes a first thin film layer 110, a barrier film layer 120, and a second thin film layer 130. The first film layer 110 and the second film layer 130 are made of a transparent material. The first film layer 110 has opposite first and second surfaces 111, 112. That is, one side of the first film layer 110 is the first surface 111, and the other side of the first film layer 110 is the second surface 112. The isolating film layer 120 has opposite fifth and second surfaces 121a and 122a, that is, one side of the isolating film layer 120 is the fifth surface 121a, and the other side of the isolating film layer 120 is the sixth surface 122. The second film layer 130 has opposite third and second surfaces 131 and 132. That is, one side of the second film layer 130 is the third surface 131, and the other side of the first film layer 110 is the fourth surface 132. Further, the second surface 112 faces the third surface 131, that is, the second surface 112 and the third surface 131 are located inside the thin film circuit layer 14.

The thin film circuit layer 14 further includes at least one light emitting element 140 and a power supply circuit 16, wherein the light emitting element 140 is disposed on the second surface 112 of the first film layer 110 in a surface adhesive manner. The light emitting element 140 of the embodiment may be a light emitting diode. Light-Emitting Diode, but not limited to this embodiment. The power supply circuit 16 is disposed on the second surface 112 of the first film layer 110, and the power supply circuit 16 is electrically connected to the light-emitting element 140 to provide electrical energy required for the light-emitting element to emit light. It is worth mentioning that in the present embodiment, the first surface 111 is a receiving external force surface on the thin film circuit layer 14.

In this embodiment, the thin film circuit layer 14 has conductive contacts A and B corresponding to the respective key caps 11, wherein the conductive contacts A are disposed on the second surface 112 of the first film layer 110, and the conductive contacts B are disposed in The third surface 131 of the third film layer 130. The isolation film layer 120 and the second film layer 130 respectively have a third hole 124 and a second hole 134, so that at least a portion of the light-emitting element 140 (ie, the light-emitting diode) can penetrate the third hole 124 and the second hole The holes 134, in turn, enable the light-emitting element 140 to be housed in the thin film circuit layer 14.

Compared with the prior art, in the present embodiment, when the user presses the keycap 11, the keycap 11 will be pressed against the first film layer 110 of the thin film circuit layer 14 via the elastic body 135, so that the first film The conductive contact A of the layer 110 passes through the via 125 on the isolation film layer 120 to contact the conductive contact B of the second film layer 130, thereby generating a corresponding word key signal and transmitting the illuminated keyboard 10 via the circuit 17. Further, since the light-emitting element 140 is disposed on the second surface 112 of the first film layer 110, and the body of the light-emitting element 140 is received in the third hole 124 of the isolation film layer 120 and the second film layer 130 is broken. The hole 134 is inside, so the light-emitting element 140 does not protrude from the first film layer 110. In short, at least a portion of the light-emitting element 140 is not exposed between the elastic thin layer 13 and the thin film circuit layer 14. Accordingly, when the user presses to the corner of the keycap 11, the keycap 11 can still be pressed against the first film layer 110 of the thin film circuit layer 14 via the elastic body 135, and the conductive contact of the first film layer 110 is made. A contacts the conductive contact B of the second film layer 130, and is not blocked by any object, thereby reducing the conductive contact A and conducting Contact sensitivity between contacts B.

In addition, in another embodiment, please refer to FIG. 4. FIG. 4 is a cross-sectional view of a three-layer thin film circuit layer according to another embodiment of the present invention. As shown in FIG. 4, in the embodiment, in order to enhance the human eye to sense the light-emitting effect of the light-emitting element 140, the first film layer 110 in the thin film circuit layer 110 has the first hole 114, and the lens of the light-emitting element 140 is used. (lens) is aligned with the first hole 114 to concentrate the light emitted by the light-emitting element 140 on the first hole 114 to emit light externally. It should be noted that in this embodiment, at least a portion of the light-emitting element 140 does not penetrate the first hole 114 of the first film layer 110, so that at least a portion of the light-emitting element 140 is not exposed to elasticity. Between the thin layer 13 and the thin film circuit layer 14. Accordingly, the disclosure not only enhances the sensitivity of the corners around the keycap 11, but also enhances the human eye's illuminating effect of the light-emitting element 140.

[Further embodiment of thin film circuit layer]

Please refer to FIG. 1 to FIG. 5 simultaneously. FIG. 5 is a schematic cross-sectional view of a two-layer thin film circuit layer according to still another embodiment of the present invention. As shown in FIG. 5, the thin film circuit layer 14 in the illuminated keyboard 10 has a two-layer structure, that is, the thin film circuit layer 14 includes only the first thin film layer 110 and the second thin film layer 130, and those having ordinary knowledge in the art should It can be understood that the first film layer 110 is separated from the circuit on the second film layer 130 by applying a layer of transparent glue (or a transparent glue layer) for isolation.

Similar to the embodiment of FIG. 3 described above, the two-layer structure of the thin film circuit layer 14 can also be used as a structure for implementing the present disclosure. When the user presses the keycap 11, the keycap 11 will be pressed against the thin film circuit via the elastic body 135. The first film layer 110 of the layer 14 is such that the conductive contact A of the first film layer 110 passes through a through hole (not shown in FIG. 5) on the transparent adhesive layer to contact the second film layer 130. The electrical contact B, in turn, generates a corresponding word key signal and transmits the illuminated keyboard 10 via circuit 17. Further, since the light emitting element 140 is disposed on the second surface 112 of the first film layer 110, and the body of the light emitting element 140 is received in the second hole 134 of the second film layer 130, the light emitting element 140 is not convex. For the first film layer 110, that is, at least a portion of the light-emitting element 140 is not exposed between the elastic thin layer 13 and the thin film circuit layer 14. Accordingly, when the user presses to the corner of the keycap 11, the keycap 11 can still be pressed against the first film layer 110 of the thin film circuit layer 14 via the elastic body 135, and the conductive contact of the first film layer 110 is made. A contacts the conductive contact B of the second film layer 130 without being blocked by any object, and reduces the contact sensitivity between the conductive contact A and the conductive contact B. Moreover, the embodiment can further reduce the overall thickness of the thin film circuit layer 140, that is, reduce the overall thickness of the illuminated keyboard.

In addition, in another embodiment, please refer to FIG. 6. FIG. 6 is a schematic cross-sectional view of a two-layer thin film circuit layer according to a further embodiment of the present invention. Similarly, as shown in FIG. 6 , in the embodiment, in order to enhance the human eye to sense the light-emitting effect of the light-emitting element 140 , the first film layer 110 in the thin film circuit layer 110 has the first hole 114 and the light-emitting element. The lens of 140 is aligned with the first hole 114 to concentrate the light emitted by the light-emitting element 140 on the first hole 114 to be emitted to the outside. It should be noted that in this embodiment, at least a portion of the light-emitting element 140 does not penetrate the first hole 114 of the first film layer 110, so that at least a portion of the light-emitting element 140 is not exposed to elasticity. Between the thin layer 13 and the thin film circuit layer 14. Accordingly, the present embodiment can not only improve the sensitivity of the corners around the keycap 11, but also reduce the overall thickness of the illuminated keyboard, and can enhance the human eye to sense the light-emitting effect of the light-emitting element 140.

[Possible effects of the examples]

In summary, the thin film circuit layer and the illuminated keyboard provided by the novel embodiment use the light emitting element disposed on the second surface of the first film layer, and the body of the light emitting element is received in the thin film circuit layer. It is not blocked by any object, and reduces the contact sensitivity between the conductive contacts and the conductive contacts.

At least one of the plurality of embodiments of the present disclosure can enhance the illuminating effect of the illuminating element by the human eye through appropriate opening on the first film layer.

In at least one of the various embodiments of the present disclosure, the overall thickness of the illuminated keyboard can be reduced by utilizing the thin film circuit layer of the two-layer structure.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the patent.

10‧‧‧ keyboard

11‧‧‧Key Cap

12‧‧‧Support structure

13‧‧‧Flexible thin layer

14‧‧‧film circuit layer

15‧‧‧floor

16‧‧‧Power supply circuit

17‧‧‧ Circuitry

110‧‧‧First film layer

111‧‧‧ first surface

112‧‧‧ second surface

114‧‧‧First hole

120‧‧‧Isolated film layer

121‧‧‧First support frame

122‧‧‧second support frame

121a‧‧‧ fifth surface

122a‧‧‧ sixth surface

124‧‧‧ third hole

125‧‧‧through hole

130‧‧‧Second film layer

131‧‧‧ third surface

132‧‧‧ fourth surface

134‧‧‧Second hole

135‧‧‧ Elastomers

140‧‧‧Lighting elements

A, B‧‧‧ conductive contacts

The specific embodiments of the present invention have been described in detail with reference to the accompanying drawings, in which FIG. 1 FIG. 1 is a perspective exploded view of the illuminated keyboard according to the embodiment of the present invention. .

2 is a partially enlarged perspective view of the thin film circuit layer of FIG. 1.

3 is a schematic cross-sectional view of a three-layer thin film circuit layer in accordance with an embodiment of the present invention.

4 is a cross-sectional view of a three-layer thin film circuit layer in accordance with another embodiment of the present invention.

FIG. 5 is a schematic cross-sectional view showing a two-layer thin film circuit layer according to still another embodiment of the present invention.

6 is a cross-sectional view of a two-layer thin film circuit layer in accordance with a further embodiment of the present invention.

14‧‧‧film circuit layer

16‧‧‧Power supply circuit

17‧‧‧ Circuitry

110‧‧‧First film layer

111‧‧‧ first surface

112‧‧‧ second surface

120‧‧‧Isolated film layer

121a‧‧‧ fifth surface

122a‧‧‧ sixth surface

124‧‧‧Second hole

125‧‧‧through hole

130‧‧‧Second film layer

131‧‧‧ third surface

132‧‧‧ fourth surface

134‧‧‧ third hole

140‧‧‧Lighting elements

A, B‧‧‧ conductive contacts

Claims (16)

A thin film circuit layer comprising: a first film layer having an opposite first surface and a second surface; a second film layer having an opposite third surface and a fourth surface; and a light emitting element, The second surface is disposed on the second surface of the first film layer, wherein the second surface faces the third surface, and the first surface is a receiving external force surface. The thin film circuit layer of claim 1, wherein the second film layer has a second hole so that at least a portion of the light emitting element penetrates the second hole. The thin film circuit layer of claim 2, wherein the first film layer and the second film layer are made of a transparent material. The thin film circuit layer of claim 3, wherein the light emitting element is a light emitting diode. The thin film circuit layer of claim 4, further comprising: a power supply circuit disposed on the second surface of the first film layer, the power supply circuit electrically connecting the light emitting element. The thin film circuit layer of claim 5, wherein the light emitting element is disposed on the power supply circuit in a surface adhesion manner. The thin film circuit layer of claim 6, further comprising: a barrier film layer having an opposite fifth surface and a sixth surface disposed between the first film layer and the second film layer And the isolation film layer has a third hole so that at least a portion of the light-emitting element penetrates the third hole. The thin film circuit layer of claim 6 or 7, wherein the first film layer has a first hole and at least a portion of the light element is not worn. Through the first hole. An illuminated keyboard includes: a bottom plate; a thin film circuit layer disposed on the bottom plate; and a key cap disposed on the bottom plate, wherein the thin film circuit layer comprises: a first thin film layer having a first first layer a surface and a second surface, wherein the key cap is on the same side as the first surface; a second film layer having an opposite third surface and a fourth surface; and a light emitting element disposed on the first film The second surface of the layer, wherein the second surface faces the third surface, and the first surface is a receiving external force surface. The illuminating keyboard of claim 9, wherein the second film layer has a second hole so that at least a portion of the illuminating element penetrates the second hole. The illuminating keyboard of claim 10, wherein the first film layer and the second film layer are made of a transparent material. The illuminating keyboard of claim 11, wherein the illuminating element is a light emitting diode. The illuminating keyboard of claim 12, further comprising: a power supply circuit disposed on the second surface of the first film layer, the power supply circuit electrically connecting the light emitting element. The illuminating keyboard of claim 13, wherein the illuminating element is disposed on the power supply circuit in a surface-adhesive manner. The illuminated keyboard of claim 14, wherein the method further comprises: An isolating film layer having an opposite fifth surface and a sixth surface disposed between the first film layer and the second film layer, and the isolating film layer has a third hole to enable the emitting At least a portion of the component penetrates the third hole. The illuminating keyboard of claim 14 or 15, wherein the first film layer has a first hole, and at least a portion of the light-emitting element does not penetrate the first hole.