Patent Application
20080053334
The above and other aspects, features and advantages of certain exemplary embodiments of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:
Throughout the drawings, like reference numerals will be understood to refer to like parts, components and structures.
The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of exemplary embodiments of the present invention as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
Referring to
Then, the transparent ink 100 is coated on the surface of the case 1 for the portable terminal, on which color paint 10 is printed. The transparent ink may be coated on the case 1 by a pad printer or a silk screen printer (not shown).
After the transparent ink 100 is printed on the surface of the case 1, the transparent ink is dried at an elevated temperature.
As shown in
On the other hand, when incident light. A2 falls upon surfaces which have not been printed with transparent ink 100, the light. A2 is reflected normally. Accordingly, these surfaces do not appear to have a texture.
Until now, the size and therefore the surface area, of a case 1 of a portable terminal has tended to be large. Even with a large surface area, the above-described method allows various images and textures to be produced at a low cost.
The two-liquid type ink may comprise an acryl resin, and the color paint 10 may comprise semi-transparent ink.
A method of printing a transparent ink according to an exemplary embodiment of the present invention will now be described in greater detail with reference to
As shown in
Then, in step S2, the transparent ink 100 is manufactured by mixing a hardening agent and a thinner with the two-liquid type ink.
The two-liquid type ink (not shown) may comprise an acryl resin.
After the transparent ink 100 has been manufactured, the transparent ink 100 is printed on the surface of the case 1 of the portable terminal, on which the color paint 10 is printed, in step S3. The transparent ink 100 may be printed by using a pad printer or a silk screen printer.
The color paint 10 may be a transparent paint.
The surface of the case 1 for the portable terminal is dried at an elevated temperature in step S4. The drying process may be a continuous process.
In this state, the refractive angle θ of the light. A1 which is incident upon the transparent ink 100 is changed. Therefore, it is possible to form different images and textures of the color paint 10 which is printed on the case 1 of the portable terminal.
As described above, a transparent ink is printed on a surface of a case of the portable terminal. This produces the representation of different textures by using the refractive index of light and creates different external glosses for the case without changing the color of the case.
The present invention can be applied to all kinds of portable terminals.
While the invention has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2006-85123 | Sep 2006 | KR | national |
