KR100629082B1 - Ultra slim keypad for portable appliance and thereof manufacturing method - Google Patents

Abstract

According to the present invention, when light is incident on the font A by the light source of the lamp L, that is, back lighting, on the film pad 60 to which the font A and the projection B are applied, the light can be identified by the naked eye. Conversely, if the light source of the lamp L is not provided, the half mirror layer HM reflects like a mirror to complete the keypad 100 and at the same time enables the ultra-slim structure while the half mirror layer is provided. The present invention relates to an ultra-slim keypad for a portable terminal and to a method of manufacturing the same, capable of enjoying the combined functions (reflection function and transmission function) of HM.

Description

Ultra-slim keypad for portable terminal and its manufacturing method {ULTRA SLIM KEYPAD FOR PORTABLE APPLIANCE AND THEREOF MANUFACTURING METHOD}             

1 is a cross-sectional view of a dome switch and a circuit board showing a keypad for a portable terminal according to the prior art.

Figure 2 is a perspective view showing a keypad for a mobile terminal according to the prior art.

Figure 3a is an exploded perspective view showing a super slim keypad for a mobile terminal according to a first embodiment of the present invention.

Figure 3b is a process diagram showing the manufacturing method of the ultra-slim keypad for a mobile terminal according to a first embodiment of the present invention.

Figure 4a is an exploded perspective view showing a super slim keypad for a portable terminal according to a second embodiment of the present invention.

Figure 4b is a process diagram showing the manufacturing method of the ultra-slim keypad for a portable terminal according to a second embodiment of the present invention.

       Explanation of symbols on the main parts of the drawings

60: film pad 70: resin film

100: keypad A: font

B: Projection EL: EL Lamp Sheet

G: Protective layer HM: Half mirror layer

P: Pattern

The present invention relates to an ultra-slim keypad for a portable terminal and a method of manufacturing the same. More particularly, when light enters a font by backlighting, it can be visually identified and conversely, a light source of a lamp is not provided. In this case, the present invention relates to an ultra-slim keypad for a portable terminal and a method of manufacturing the same, which can be made extremely thin by using a half mirror layer to perform a complex function of reflecting like a mirror.

In general, a keypad for a portable terminal is applied to a portable terminal including a home telephone, a PDA, a cellular phone, and the like, and is used as a switching member for generating a signal in association with a circuit board.

The keypad for the portable terminal introduced below will be described as an example for the convenience of the keypad for a cellular phone, and the present invention is not limited thereto.

1 is a cross-sectional view of a dome switch D and a circuit board H showing a keypad 50 for a portable terminal according to the prior art.

As shown in FIG. 1, a keypad 50 for a mobile terminal according to the related art is basically provided in a front housing F in which a lamp L for providing a light source is provided and placed on a dome switch D. 20) and a key 10 having a font 11a engraved with symbols, letters, numbers, etc. on the keytop 11 so as to be identified by respective functions such as a dial key or a function key.

The pad 20 is provided with a protrusion 21 protruded to touch the contact point H1 of the circuit board H while being interlocked with the elasticity of the dome switch D, and the key 10 is the key top 11. The font 11a is provided and completed by printing, spraying, or laser processing on it.

2 is a perspective view showing a keypad for a mobile terminal according to the prior art.

As shown in FIG. 2, the keypad 50 for a portable terminal according to the related art has a beautiful structure since the key 10 exposed to the outside of the front housing F has only a functional structure for recognizing only the font 11a. There is a disadvantage that is not very satisfactory for consumers who prefer a terminal.

That is, the key 10 applied to the keypad 50 for the portable terminal according to the prior art is only a font 11a so that the user can utilize only as a functional (communication function, content access function, or mode switching function, which is a unique function of the mobile terminal). ), The aesthetic design was not greatly reduced, and there was a problem in that it did not create various values as luxurious portable products due to the uniform structure.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to use an ultra-thin keypad for a portable terminal and to make it extremely thin while using a reflection function of a half mirror layer and a light source transmission function in combination. To provide a manufacturing method.

Ultra-slim keypad for a mobile terminal according to the present invention for achieving the above object,

It comprises a film pad having a font and a projection at the bottom, and a half mirror layer provided on the film pad, the basic feature of the technical configuration.

Ultra-slim keypad for a mobile terminal according to the present invention for achieving the above object,

Resin film with a font,

A half mirror layer provided on the resin film,

It is characterized in that the technical configuration consisting of an EL lamp sheet attached to the bottom of the resin film and having a projection.

Method of manufacturing a ultra-slim keypad for a portable terminal according to the present invention for achieving the above object,

(S1) providing a font to the resin film,

(S2) providing a projection to the lower portion of the resin film to complete the film pad,

(S3) It is a basic feature of the technical method that comprises the step of providing a half mirror layer on the film pad.

Method of manufacturing a ultra-slim keypad for a portable terminal according to the present invention for achieving the above object,

(S10) giving a font to the resin film,

(S20) providing a half mirror layer over the resin film;

(S30) A step of attaching the EL lamp sheet having the projections to the lower portion of the resin film is a basic feature of the technical method.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings, and through these embodiments, the objects, features, and advantages of the present invention can be better understood.

3A is an exploded perspective view illustrating a super slim keypad 100 for a portable terminal according to a first embodiment of the present invention.

The ultra-slim keypad 100 for a mobile terminal according to the first embodiment of the present invention is provided with a film pad 60 having a font A and a protrusion B at the bottom thereof, as shown in FIG. On the film pad 60, when light enters the font A by the light source of the lamp L (see FIG. 2), that is, the backlight A, the light source of the lamp L is transmitted. If not provided, a half mirror layer (HM) is provided to reflect like a mirror.

At this time, the font (A) is mainly given to the lower surface of the film pad 60 by printing, spraying or laser processing, and in some cases may be given to the upper surface of the film pad 60, the projection (B) also the applicant Applicants 2004.06 .28. As the patent application No. 2004-48966 filed under the name of the keypad for magnetic electronic devices and its manufacturing method, it can be applied to the film pad 60 by manufacturing a mold by printing on the lower surface of the film pad 60. The film pad 60 can be made even thinner by being extremely free from the heat effects, and can be manufactured by silicon molding. A half mirror layer (HM) is provided on the film pad 60 so as not to use a mobile terminal. If not, it can be used as a mirror and at the same time to enjoy a clean aesthetic of the mirror itself, and when the light source of the lamp (L) is provided, the light of the font (A) And to be transmitted as shown in hejipgo while scattering commanded the glass makes it possible to provide a more luxurious and beautiful aesthetics.

Then, when the light source of the lamp L is not provided on the half mirror layer HM, the function of the auxiliary pattern may be performed so as to potentially store the position of the font A, or the font A may be illuminated by backlighting. Can be given a pattern (P) to perform the function of the reinforcement pattern in cooperation with the light of the), and the half mirror layer (HM) including the pattern (P) is, for example, UV coating It may further include a protective layer (G) to be protected.

3B is a process diagram illustrating a method of manufacturing a super slim keypad for a portable terminal according to a first embodiment of the present invention.

In the manufacturing method of the ultra-slim keypad for a portable terminal according to the first embodiment of the present invention, as shown in FIG. 3B, first, the font A is printed or printed on the bottom surface (in some cases, the top surface) of the resin film 70. It is given by laser processing (S1), the bottom of the resin film 70 is given a projection (B) by a printing method or a silicone molding to complete the film pad 60 (S2), half on the film pad 60, After applying the mirror layer HM (S3), the pattern P may be provided (S4) and the step (S5) covering the protective layer (G) as necessary.

The half mirror layer HM may be a half mirror deposition film made of aluminum, silver, nickel, chromium, zinc, stainless alloy or zinc alloy (a film in which aluminum, silver, etc. are pre-deposited), and is disposed on the film pad 60. Of course, aluminum, silver, nickel, chromium, zinc, stainless alloys or zinc alloys can be produced by direct deposition.

More specifically, the half-mirror layer (HM) is a fine vaporized metal material by melting a surface of the metal material with an electron beam after injecting pure metal materials such as aluminum, silver, nickel, chromium and zinc in a closed space in a vacuum state. The film is deposited on top of the film, and metal, such as aluminum, silver, nickel, chromium, zinc, stainless alloy or zinc alloy, is put into a closed space and then sputtered to make a fine powder. It may be a half-mirror deposition film is applied to a method that can be deposited directly on, in the present invention is not limited to this.

4A is an exploded perspective view illustrating a super slim keypad 100 for a portable terminal according to a second embodiment of the present invention.

As illustrated in FIG. 4A, the ultra-slim keypad 100 for a portable terminal according to the second embodiment of the present invention is provided with a resin film 70 to which a font A is assigned, and a bag is placed on the resin film 70. When light enters the font A by lighting, the light is transmitted to the naked eye so that it can be visually identified. If no back light is provided, a half mirror layer HM that reflects like a mirror is provided, and the half mirror layer HM is provided. Is completed by attaching the EL lamp sheet EL having the projection B to the lower portion of the resin film 70 to which?

The EL lamp sheet EL is a sheet covered with an EL Lmap (Electro Luminescence Lamp), which is a surface light source, and has a much smaller occupied space than the light emitting diode (LED), which is a point light source. In addition, the pattern P may be further provided on the half mirror layer HM, and the protective layer G may be covered on the half mirror layer HM including the pattern P.

Figure 4b is a process chart showing a manufacturing method of the ultra-slim keypad for a mobile terminal according to a second embodiment of the present invention.

In the manufacturing method of the ultra-slim keypad for a portable terminal according to the second embodiment of the present invention, as shown in FIG. 4B, the font A is first applied to the resin film 70 by printing, spraying, or laser processing (S10). ), After applying the half mirror layer (HM) on the resin film 70 (S20), and after attaching the EL lamp sheet (EL) having a projection (B) to the resin film 70 (S30), necessary In accordance with this, the pattern P is provided on the half mirror layer HM (S40) and the protective layer G is covered with the step S50.

At this time, the half mirror layer (HM) may be a half mirror deposition film made of any one selected from aluminum, silver, nickel, chromium, zinc, stainless alloy and zinc alloy, as described above, and the aluminum directly on top of the resin film 70 , Silver, nickel, chromium, zinc, stainless alloys and zinc alloys can be deposited, as well as the projections (B) is also filed under the name of the applicant's keypad for electronic devices and its manufacturing method of June 28, 2004 As in Korean Patent Application No. 2004-48966, the EL lamp sheet EL can be manufactured by printing or silicon molding.

As a result, it can be seen that the ultra-slim keypad for a portable terminal according to the present invention and a manufacturing method thereof are remarkably different from the existing model in that they are manufactured in an ultra-slim type using the usefulness of the half mirror layer (HM).

As described above, the ultra-slim keypad for a portable terminal and a method of manufacturing the same according to the present invention allow light to be transmitted when the light is incident on the font A by the backlighting so that it can be visually identified, and conversely, the light source of the lamp L. If it is not provided, a half mirror layer HM reflecting like a mirror is applied on the film pad 60 provided with the font A and the projection B so that the keypad 100 is completed and at the same time ultra-slim. While making it possible to produce, it has an excellent effect of enjoying the combined function (reflective function and transmission function) of the half mirror layer (HM) together.

In addition, the space occupied by attaching the resin film 70 to which the font A is assigned and the EL lamp sheet EL having the projection B under the half mirror layer HM is completed in order to complete the keypad 100. In addition to minimizing this, there is usefulness that can fully demonstrate the usefulness of the half mirror layer (HM).

In addition, even when the light source of the lamp L is not provided by the pattern P provided on the half mirror layer HM, the font by the irradiation of the backlighting may be stored in the position of the font A potentially. There is an advantage that can cooperate with the lights of A) to produce a beautiful light harmonization together, the protective layer (G) has the advantage that can greatly enhance the protection of the half mirror layer (HM) including the pattern (P). .

As can be seen from the object, configuration and effect of the present invention, the present invention is characterized in that the manufacturing method of the keypad for the ultra-slim portable terminal using the half mirror layer (HM), and the other variable processes and configurations are various cases It can be understood as the number of, and in the present invention includes all of the number of possible changes, and the interpretation of the claims is also equivalent thereto.

Claims (12)

Ultra-thin for a mobile terminal, comprising a film pad (60) having a font (A) and having a projection (B) at the bottom, and a half mirror layer (HM) applied to the film pad (60). Slim keypad (100). The method of claim 1, Ultra-thin keypad 100 for a portable terminal, characterized in that it further comprises a pattern (P) provided on the half mirror layer (HM). The method of claim 2, The ultra-thin keypad (100) for the portable terminal, characterized in that it further comprises a protective layer (G) which is overlaid on the half mirror layer (HM) including the pattern (P). Resin film 70 having a font (A), Half mirror layer (HM) provided on the resin film 70, and The ultra-thin keypad 100 for a portable terminal, comprising an EL lamp sheet (EL) attached to the bottom of the resin film 70 and having a projection (B). The method of claim 4, wherein Ultra-thin keypad 100 for a portable terminal, characterized in that it further comprises a pattern (P) provided on the half mirror layer (HM). The method of claim 5, The ultra-thin keypad (100) for the portable terminal, characterized in that it further comprises a protective layer (G) which is overlaid on the half mirror layer (HM) including the pattern (P). (S1) providing a font (A) to the resin film 70, (S2) providing a protrusion B to the lower portion of the resin film 70 to complete the film pad 60; (S3) The manufacturing method of the ultra-slim keypad for a mobile terminal, comprising the step of providing a half mirror layer (HM) on the film pad (60). The method of claim 7, wherein In the step (S2), the projection (B) applied to the lower portion of the resin film (70) is a manufacturing method of an ultra-slim keypad for a portable terminal, characterized in that it is produced by a printing method or silicon molding. The method according to claim 7 or 8, The half mirror layer (HM) is a manufacturing method of a ultra-thin keypad for a mobile terminal, characterized in that the half-mirror deposition film made of any one selected from aluminum, silver, nickel, chromium, zinc, stainless alloy and zinc alloy. (S10) giving a font (A) to the resin film 70, (S20) providing a half mirror layer (HM) on the resin film (70), (S30) The manufacturing method of the ultra-slim keypad for a portable terminal, comprising the step of attaching the EL lamp sheet (EL) having a projection (B) to the lower portion of the resin film (70). The method of claim 10, The projection (B) applied to the lower portion of the EL lamp sheet (EL) in the step (S30) is a manufacturing method of the ultra-slim keypad for a mobile terminal, characterized in that produced by printing or silicon molding. The method of claim 10 or 11, The half mirror layer (HM) is a manufacturing method of a ultra-thin keypad for a mobile terminal, characterized in that the half-mirror deposition film made of any one selected from aluminum, silver, nickel, chromium, zinc, stainless alloy and zinc alloy.

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