TWI596636B - Lighting leather case keyboard and the cover film thereof - Google Patents

Description

Illuminated leather keyboard and its cover film

The invention relates to a luminous holster keyboard and a covering film thereof, in particular to a illuminating holster keyboard and a covering film thereof used in a holster keyboard used with a tablet computer or a mobile information device.

According to the prior art, the holster-covered keyboard is constructed by covering a frame of a keyboard with a covering film, and the covering film hides each button of the keyboard under the covering film. The cover film is printed with a button case corresponding to the position of each button, so that the operator can recognize the position of each button and the symbol or command represented by each button. The cover film abuts against the top surface of each button, and because the cover film has elasticity, when the operator presses each button pattern on the cover film, the cover film is pressed to decrease position, thereby The button corresponding to the button pattern is pressed.

The cover film used in the existing holster-type covered keyboard is manufactured by spraying the base color of the coating film and a plurality of button patterns on the surface of the film substrate by spraying on a soft film substrate, and then spraying A protective layer is applied to the surface of the sprayed substrate.

However, when the button pattern is printed by spraying, the button pattern must be sprayed on the surface of the film substrate by using a jig or a mold for printing the button pattern, thereby making the manufacturing process of the film complicated, and it is necessary to make a special jig or Molding while making the cost increase. At the same time, since the button pattern is formed by the pigment spraying method, although the surface has a protective layer, the pattern used for a long time is relatively easy to wear or fall off, and the button pattern is damaged.

Moreover, the button pattern of the cover film used in the existing holster-covered keyboard is sprayed on the underlying layer by using the pigment, so that the formed button pattern cannot be transmitted, so that the existing holster-covered keyboard is difficult to use. The backlight module is set, which affects the flexibility of the keyboard design.

Because of the above reasons, the shortcomings of the existing holster-covered keyboard, how to improve the coating film of the holster-covered keyboard by the improvement of the structure and the manufacturing method design, to overcome the above-mentioned defects, has become the item One of the important topics that the business is trying to solve.

The main object of the present invention is to solve the defects that the manufacturing process of the cover film used in the conventional illuminating holster keyboard is complicated, the key graphic is easy to wear, and the light-transmitting key graphic is not easily formed.

The embodiment of the invention provides a illuminating holster keyboard, comprising: a backlight keyboard module, the backlight keyboard module comprises a plurality of light transmissive buttons, and at least one backlight source, wherein the plurality of the buttons respectively have a top surface And a bottom surface opposite to the top surface, at least one of the backlights is adjacent to the plurality of buttons, and at least one light generated by the backlight is capable of penetrating a plurality of the buttons, and from the plurality of The top surface of the button is exposed to the light of the backlight; the frame is disposed on the backlight keyboard module, the frame has a button area, and the top surface of the plurality of buttons is exposed to the Above the button area; a coating film, the coating film is disposed above the top surface of the button area and the plurality of buttons; wherein the coating film comprises: a light transmissive film; a bottom color layer, the bottom color layer is disposed on one side of the light transmissive film; an opaque shielding layer, wherein the shielding layer is disposed on the bottom color layer relative to the light transmissive film The other side; a protective layer, the protective layer covering the shielding layer relative to the bottom Another layer side; the position of the top surface of the masking layer corresponding to the plurality of keys, respectively of the material of the shielding layer is partially removed to form a plurality of light-transmissive pattern.

In a preferred embodiment of the invention, the light transmissive film is a transparent soft film; the bottom color layer is formed by a white paint; the shielding layer is formed by an opaque paint; The protective layer is a transparent UV hardened layer; The light transmissive pattern is a material for removing a portion of the shielding layer on the shielding layer by laser engraving to form a plurality of the light transmissive patterns.

In a preferred embodiment of the present invention, the coating film further has a plurality of intermediate color layers between the under color layer and the shielding layer, and the plurality of the intermediate color layers respectively have different colors, and the transparent layer After the pattern penetrates through the shielding layer, it further penetrates to one of the plurality of intermediate color layers so that the light transmitting pattern can display different colors.

In a preferred embodiment of the present invention, a plurality of the light transmissive patterns are formed on the protective layer and the shielding layer by laser engraving after the protective layer is formed on the surface of the shielding layer. The light transmissive patterns simultaneously penetrate the protective layer and the shielding layer.

The embodiment of the invention also provides a coating film used in the illuminating holster keyboard.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.

1‧‧‧Light leather keyboard

10‧‧‧ frame

11‧‧‧Key area

12‧‧‧Border

13‧‧‧Key punch

14‧‧‧ bottom cover

20‧‧‧ Cover film

21‧‧‧Keypad block

22‧‧‧Light pattern

23‧‧‧Light transmissive film

24‧‧‧ground layer

25‧‧‧Shielding layer

26‧‧‧Protective layer

27‧‧‧Intermediate color layer

271‧‧‧First intermediate color layer

272‧‧‧Second intermediate layer

273‧‧‧ Third intermediate layer

28‧‧‧ accommodating department

30‧‧‧Backlit keyboard module

31‧‧‧floor

32‧‧‧ button

33‧‧‧Scissors foot mechanism

34‧‧‧ Backlight

40‧‧‧Ray head

41‧‧‧Laser beam

L‧‧‧Light

1 is a perspective assembled view of a specific embodiment of a illuminating holster keyboard of the present invention.

2 is an exploded perspective view of a specific embodiment of a illuminating holster keyboard of the present invention.

3 is a partial, cross-sectional, cross-sectional view of a particular embodiment of a illuminating holster keyboard of the present invention.

4 is a partially enlarged cross-sectional view of FIG. 3 taken as a specific embodiment of the illuminating holster keyboard of the present invention.

Figure 5 is a partial assembled cross-sectional view showing another embodiment of the illuminating holster keyboard of the present invention.

6 to 10 are schematic views showing the manufacturing process of a cover film used in the illuminating holster keyboard of the present invention.

Figure 11 is a cover film used for the illuminating holster keyboard of the present invention, which is used for shielding layers and After the completion of the formation of the sheath, a schematic diagram of the manufacturing process of the specific embodiment of etching the light-transmitting pattern is performed.

12 to FIG. 13 are schematic diagrams showing a manufacturing process of a specific embodiment in which a coating film used in a luminescent leather keyboard of the present invention is further provided with a plurality of intermediate color layers between a ground color layer and a shielding layer.

As shown in FIG. 1 and FIG. 2 , the present invention is a light-emitting holster keyboard 1 , which mainly includes a frame 10 , a cover film 20 , and a backlit keyboard module 30 . In this embodiment, the frame body 10 is a frame body formed by metal die casting or plastic injection molding. One side of the frame body 10 has a button area 11 , and the button area 11 is provided with a plurality of button holes 13 . The backlight keyboard module 30 is disposed in the button area 11 of the frame 10 , and the plurality of buttons 32 of the backlight keyboard module 30 can be seen from the plurality of button through holes 13 and exposed to the frame 10 . Above the top surface of the button area 11. The frame body 10 further includes a bottom cover 14 disposed on the bottom surface of the frame body 10 to close the bottom surface of the frame body 10, and the backlight keyboard module 30 is covered on the inner side of the frame body 10.

In this embodiment, the periphery of the button area 11 of the frame 10 has a frame 12, and the edge of the cover film 20 is attached to the frame 12 of the button area 11 and covers each button 32 of the backlight keyboard module 30. The top surface. The cover film 20 is a flexible film. As shown in FIG. 1 , the cover film 20 respectively forms a plurality of button blocks 21 corresponding to the positions of the buttons 32 , and each button block 21 has a transparent pattern. 22, each of the transparent patterns 22 represents a character or an instruction symbol input by the button 32 corresponding to each button block 21, thereby enabling the operator to recognize each button block 21 on the cover film 20 The text symbol or command entered by the button.

As shown in FIG. 2 and FIG. 3, the backlit keyboard module 30 includes a bottom plate 31. The plurality of buttons 32 are connected to the bottom plate 31 through a plurality of scissor-leg mechanisms 33, so that the respective buttons 32 can be along the ground. The bottom plate 31 moves up and down in a vertical direction. In this embodiment, the plurality of buttons 32 are respectively light-transmissive buttons, and the buttons 32 can be made of a transparent plastic material, so that the buttons 32 are transparent. Light, Alternatively, a permeable material may be embedded in a portion of the button 32 such that a partial area of the button 32 has a light transmitting property. The backlight keyboard module 30 further includes a plurality of backlights 34. In this embodiment, the backlights 34 are a plurality of light emitting diodes disposed on one side of the bottom surface 31 facing the bottom surface of the button 32. The light generated by the backlight 34 can penetrate from the bottom surface of each of the keys 32 to the top surface of each of the keys 32. However, the configuration of the backlight 34 is not limited to the light emitting diode. In other embodiments, the backlight 34 may also be a light guiding element, a cold cathode tube, or other forms of light emitting elements.

FIG. 3 is a partial cross-sectional view showing the structure of the illuminating holster keyboard 1 of the present invention after assembly. In this embodiment, the backlit keyboard module 30 is received in the accommodating space formed by the bottom cover 14 of the frame 10 and the frame 10, and the plurality of the buttons 32 are respectively from the plurality of the frames 10 The keyhole 13 is pierced so that the top surface of the button 32 is exposed above the button area 11 of the frame 10. The light L generated by the backlight 34 can penetrate the top surface of the button 32 from the bottom surface of each of the buttons 32. The cover film 20 abuts against the top surface of each of the buttons 32. As described above, since the cover film 20 has a light-transmissive pattern 22 corresponding to each of the button blocks 21 of each of the buttons 32, each button is pressed. The light transmitted through the top surface of the cover 32 can further penetrate the light-transmitting pattern 22 on the cover film 20, so that each of the light-transmitting patterns 22 on the cover film 20 forms a light-emitting state (please refer to Figure 4).

As shown in FIG. 4, the structure of the cover film 20 of the present invention comprises: a light transmissive film 23, a bottom color layer 24, a shielding layer 25, and a protective layer 26. The permeable film 23 is a transparent flexible film, and the permeable film 23 can be selected from, for example, PU (Polyurethane), TPU (Thermoplastic Polyurethane), PE (Polyethylene), and the like. Each type of transparent film material; the under color layer 24 may be a white color, or other light color (such as yellow, cyan, water blue, etc.) coating, the bottom color layer 24 is coated on the light transmissive film The shielding layer 25 is disposed on the other side of the ground color layer 24 relative to the light transmissive film 23, and the shielding layer 25 is a non-transparent and bottom Color layer 24 has obvious a coating layer of contrast color (eg, black, iron ash, dark blue, etc.), the light transmissive pattern 22 being formed on the shielding layer 25; the protective layer 26 being disposed on the shielding layer 25 relative to the ground color On the other side of the layer 24, the protective layer 26 may be a transparent UV hardening coating. The protective layer 26 has a transparent and wear-resistant property after molding to protect the shielding layer 25 and to form the shielding layer. The light transmissive pattern 22 on 25. However, in other embodiments of the present invention, the light transmissive film 23 and the ground layer 24 may also be designed as the same piece of material. For example, the light transmissive film 23 is made of a light transmissive material having the same color as the background color. When the light penetrates the light transmissive film 23, the same color as the underlying color can be displayed, so that both the light transmissive film 23 and the underlying layer 24 are combined into the same material layer.

As shown in FIG. 4, in the embodiment, the shielding layer 25 removes part of the material of the shielding layer 25 by laser engraving to form a hollow pattern, and the transparent pattern 22 is formed. At the same time, it should be noted that in the embodiment, when the light-transmitting pattern 22 is formed by laser engraving, it must be noted that the etching depth of the light-transmitting pattern 22 is limited to the thickness of the shielding layer 25, thus making the light-transmitting pattern 22 does not penetrate the bottom color layer 24, so the ground color layer 24 located within the range of the light transmissive pattern 22 can remain intact. Therefore, the light L that has penetrated from the top surface of the button 32 passes through the light-transmitting film 23 and the ground layer 24, and then passes through the shielding layer 25 from the light-transmitting pattern 22, so that the light-transmitting pattern 22 is displayed. The backlight color of the underlying layer 24.

In the embodiment shown in FIG. 5, a plurality of accommodating portions 28 are respectively disposed on the cover film 20 at positions corresponding to the top surfaces of the plurality of the buttons 32, and each of the accommodating portions corresponds to the plurality of the buttons. The top surface of the 32, so that the top surfaces of the plurality of the buttons 32 can be accommodated in the respective housing portions 28. In this embodiment, the cover film 20 is coupled to each other through the plurality of receiving portions 28 and the buttons 32, thereby eliminating lateral displacement between the cover film 20 and the button 32, and increasing the respective light-transmitting patterns 22 of the cover film 20. Positioning accuracy. At the same time, through the plurality of the accommodating portions 28, the appearance of the cover film 20 can also be made to have a convex shape similar to a physical button, so that the operator can easily recognize the position of each of the keys.

The manner in which the coating film 20 used in the present invention is formed will be further described below. As shown in FIG. 6, in the manufacturing step of the cover film 20 of the present invention, first, a light-transmittable film 23 is prepared. Then, as shown in FIG. 7, the underlying layer 24 is formed on one side of the light transmissive film 23. However, in other embodiments, the permeable film 23 and the underlying layer 24 may also be designed as the same sheet material. As shown in FIG. 8, after the undercoat layer 24 is formed, the masking layer 25 is formed on the surface of the underlying layer. As shown in FIG. 9, in the first embodiment of the present invention, after the shielding layer 25 is formed, the shielding layer 25 is etched by the laser beam 41 generated by the laser head 40 of the laser engraving device. Removing a portion of the material from the shielding layer 25 to form the light transmissive pattern 22. Since the shielding layer 25 is in a hollow state at the portion of the light transmissive pattern 22, the light can only be obtained from the portion of the light transmissive pattern 22. penetrate. Next, as shown in FIG. 10, a UV-curing coating is applied onto the shielding layer 25 on which the light-transmitting pattern 22 has been formed, and then the UV-curing coating is formed into the protective layer 26 via a UV curing process.

Through the above procedure, a coating film 20 having a plurality of light transmissive patterns 22 can be formed. The light transmissive pattern 22 of the coating film 20 used in the present invention is formed by laser engraving. Since the laser engraving molding technology controls the laser engraving molding machine to directly form the pattern on the shielding layer 25 by numerical control, It is necessary to use a jig that sprays the button graphic, thereby reducing the cost of the jig and simplifying the process. After the coating film 20 is formed, the light-transmitting pattern 22 is formed on the shielding layer 25 by engraving, and the shielding layer 25 is covered with the protective layer 26, so that the light-transmitting pattern 22 on the shielding layer 25 is not easily worn. When the cover film 20 of the present invention is used for a long time, the respective light-transmitting patterns can still be kept clear.

As shown in FIG. 11 , the light transmissive pattern 22 of the cover film 20 of the present invention may also be selected after the mask layer 25 and the protective layer 26 are formed, and then transparently engraved from one side of the protective layer 26 . The pattern is formed on the shielding layer 25 and the protective layer 26, so that the plurality of light transmitting patterns 22 on the covering film 20 of this embodiment penetrate the protective layer 26 and the shielding layer 25 at the same time. In this embodiment, the light transmissive pattern 22 is formed on the protective layer 26 and the shielding layer 25 after the protective layer 26 and the shielding layer 25 are formed. Therefore, the keyboard of the cover film 20 disclosed in this embodiment can be used to mount the cover film 20 of the unprinted transparent pattern 22 on the keyboard, and then when the keyboard is scheduled to be sold or shipped, and then purchased. A plurality of the light-transmitting patterns 22 are formed on the cover film 20 by laser engraving, so that the keyboard of the cover film of the embodiment can be used to convert different forms of the light-transmitting patterns 22 according to customer requirements. It is formed on the cover film 20 to achieve the purpose of customization.

As shown in FIG. 12 and FIG. 13, another embodiment of the cover film 20 used in the present invention is provided. In this embodiment, the cover film 20 is located between the under color layer 24 and the shielding layer 25. There are a plurality of intermediate color layers 27. In this embodiment, the intermediate color layer 27 includes a first intermediate color layer 271 of a first color, a second intermediate color layer 272 of a second color, and a third intermediate color layer 273 of a third color. As shown in FIG. 12, the manufacturing process of the cover film 20 of this embodiment is such that after the undercoat layer 24 is formed on the light-transmissive film 23, the intermediate color layers 27 are sequentially formed on the undercoat layer 24, and then The masking layer 25 is formed on each of the intermediate color layers 27, and then a procedure of molding the light-transmitting patterns by laser engraving is performed. Immediately after the formation of the light-transmitting pattern 22, the protective layer 26 is disposed on the surface of the shielding layer 25.

In this embodiment, when the light transmissive pattern 22 is formed, the light transmissive pattern 22 is further formed into the first intermediate color layer 271 and the second intermediate color layer in addition to the shielding layer 25. One of 272 or the third intermediate color layer 273, thus enabling the light transmissive pattern 22 to exhibit the color of the intermediate color layer 27 that is not penetrated by the light transmissive pattern 22. Of course, in this embodiment, the light transmissive pattern 22 can also pass through the respective intermediate color layers 27, and the light transmissive patterns 22 can display the color of the ground color layer 24.

The coating film 20 disclosed in the embodiment shown in FIG. 12 and FIG. 13 can select different etching depths when etching the light-transmitting pattern 22 by laser engraving when the light-transmitting pattern 22 is formed, so that each is different. The light transmissive patterns 22 respectively display different backlight colors.

[Possible effects of the examples]

The main features of the coating film used in the present invention compared to the existing holster-covered keyboard are as follows:

1. The light transmissive pattern 22 on the cover film 20 of the present invention is formed on the shielding layer 25 by laser engraving, so that it is not necessary to use a jig for printing a button pattern or a typeface, thereby saving the cost of the jig. Simplify the manufacturing process.

2. The light transmissive pattern 22 on the cover film 20 of the present invention is formed on the shielding layer 25 by laser engraving, and the outer side of the shielding layer 25 is covered with the protective layer 26, so that it is not easily worn for a long time.

3. The light transmissive pattern 22 of the cover film 20 of the present invention has a light transmissive property, and the light transmissive pattern 22 is displayed through the underlying layer 24 or the intermediate color layer 27 to display different backlight colors, and thus can be matched with the backlight source. An illuminated keyboard having a backlight effect is formed.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent technical changes made by using the present specification and the contents of the drawings are included in the protection scope of the present invention. .

10‧‧‧ frame

11‧‧‧Key area

13‧‧‧Key punch

14‧‧‧ bottom cover

20‧‧‧ Cover film

30‧‧‧Backlit keyboard module

31‧‧‧floor

32‧‧‧ button

33‧‧‧Scissors foot mechanism

34‧‧‧ Backlight

L‧‧‧Light

Claims (10)

A illuminating holster keyboard includes: a backlit keyboard module, the backlit keyboard module includes a plurality of light transmissive buttons, and at least one backlight, wherein the plurality of buttons respectively have a top surface, and a sum At least one of the backlights is adjacent to the plurality of the buttons, and at least one of the backlights generates light that can penetrate the plurality of buttons and is exposed from a top surface of the plurality of buttons Light of the backlight; a frame, the frame is disposed on the backlight keyboard module, the frame has a button area, and a top surface of the plurality of buttons is exposed on the button area a coating film, the coating film is disposed above the top surface of the button area and the plurality of buttons; wherein the coating film comprises: a light transmissive film; a bottom color layer, The underlying layer is disposed on one side of the permeable film; an opaque shielding layer, the shielding layer is disposed on the other side of the underlying layer relative to the permeable film; a protective layer covering the other side of the shielding layer relative to the underlying layer Masking material layer to a portion of the top surface of the masking layer corresponding to the plurality of keys is removed to form a plurality of light-transmissive pattern. The illuminating holster keyboard of claim 1, wherein the permeable film is a transparent soft film; the bottom layer is formed of a white paint; and the opaque layer is an opaque paint. Forming; the protective layer is a transparent UV hardening layer; a plurality of the light transmissive patterns on the shielding layer are materials for removing a portion of the shielding layer on the shielding layer by laser engraving A plurality of the light transmissive patterns are formed. The illuminating holster keyboard of claim 2, wherein an edge of the cover film is attached to an edge of the button area of the frame. The illuminating holster keyboard of claim 3, wherein the cover film is respectively provided with a plurality of positions corresponding to the plurality of buttons corresponding to positions of the plurality of top surfaces of the buttons The top surface of the housing, a top surface of the plurality of buttons is received in a plurality of the receiving portions of the cover film. The illuminating holster keyboard of claim 3, wherein the plurality of buttons are respectively connected to a bottom plate through a plurality of scissor legs; the bottom plate faces a bottom surface of the plurality of buttons, and at least one of the backlights And disposed on a side surface of the bottom plate facing the plurality of the buttons. The illuminating holster keyboard of claim 3, wherein the covering film further has a plurality of intermediate color layers between the under color layer and the shielding layer, and the plurality of intermediate color layers respectively have different colors, and After the light transmissive pattern penetrates the shielding layer, it further penetrates to one of the plurality of intermediate color layers, so that the light transmissive pattern can display different colors. The illuminating holster keyboard of claim 3, wherein the plurality of the light transmissive patterns are formed on the surface of the shielding layer after the protective layer is formed on the protective layer and the shielding layer by laser engraving. And a plurality of the light transmissive patterns simultaneously penetrate the protective layer and the shielding layer. A cover film of a illuminating holster keyboard, the illuminating holster keyboard having a plurality of light transmissive buttons, the cover film covering a top surface of the plurality of buttons, the cover film comprising: a light transmissive film, wherein the light transmissive film is a soft transparent film; a bottom color layer, the bottom color layer is disposed on one side of the light transmissive film; and an opaque shielding layer is The shielding layer is disposed on the other side of the bottom color layer relative to the light transmissive film, and the shielding layer corresponds to the position of the top surface of the plurality of buttons, respectively, through a laser engraving removal portion a material of the shielding layer to form a plurality of light transmissive patterns; a protective layer covering the other side of the shielding layer relative to the underlying layer, the protective layer being a transparent UV hardening Floor. The coated film of the illuminating holster keyboard of claim 8, wherein the covering film further has a plurality of intermediate color layers between the under color layer and the shielding layer, and a plurality of The intermediate color layers respectively have different colors, and after the light transmissive pattern penetrates the shielding layer, further penetrates to one of the plurality of the intermediate color layers, so that the transparent patterns can display different colors. colour. The coating film of the illuminating holster keyboard of claim 8, wherein the plurality of the light transmissive patterns are formed on the surface of the shielding layer after the protective layer is formed, and then formed by laser engraving. And a plurality of the light transmissive patterns simultaneously penetrate the protective layer and the shielding layer.