KR100465213B1 - Method for fabricating liquid crystal display monitor with esthetic back - Google Patents

Abstract

The present invention relates to a liquid crystal monitor having a beautiful rear surface having an LCD panel having a first surface having a display portion and a second surface opposite the first surface. The front housing covers the first surface of the LCD panel and exposes the display portion. The back housing covers the second surface of the liquid crystal panel, the base portion is engaged with the back housing in a butt hinge manner, and the angle of the LCD panel can be adjusted with respect to the base portion. The back cap has a substantially planar outer surface. The rear cover is also disposed on the bag housing and comprises a metallic material.

Description

Method for manufacturing a liquid crystal monitor having a beautiful rear surface {METHOD FOR FABRICATING LIQUID CRYSTAL DISPLAY MONITOR WITH ESTHETIC BACK}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display (LCD) panel, and more particularly, to an LCD display panel having an esthetic design by printing a pattern on a rear surface thereof and a manufacturing method thereof.

LCD monitors are useful devices for personal computers because they are small, light, low power consumption, and do not reflect light. Like a variety of commercial products, personal computers require more convenient and human-centered functionality, as well as demanding occupied spaces that are smaller, lighter and even more beautiful and luxurious in various patterns. Because plastic materials can easily produce the desired shape, are large in plastic and light in weight, these plastic materials are mainly used to make housings of products. The housing for the LCD panel is also made of plastic material.

1 and 2, FIG. 1 is a front perspective view illustrating a conventional LCD monitor, and FIG. 2 is a rear perspective view illustrating the conventional LCD monitor shown in FIG. The conventional LCD monitor 100 basically includes an LCD panel 102 such as a thin film transistor (TFT) LCD panel which is currently mainstream. The front housing 104 and the back housing 106 are provided to surround the LCD panel 102. The front portion of the LCD panel 102 is a display portion, and the rear portion of the LCD panel 102 includes a reflecting portion or a backlight. The front housing 104 includes a plurality of buttons 108 to expose the display and adjust parameters such as brightness or contrast. Furthermore, it may include a voice hole (not shown) for outputting the voice. The bag housing 106 includes a plurality of heat dissipation holes 112 that may have a slit structure or a circular hole. In general, front housing 104 and bag housing 106 comprise a plastic material. In view of heat dissipation, the bag housing 106 needs to have a discharge hole 112 and also have a pair of wires. Thus, the shape of this bag housing 106 is not regular, so it is not easy to print and make a pattern. As a result, the appearance is not beautiful. The front housing 104, the back housing 106 and the LCD panel 102 are mounted on a base 110. However, although plastic products are easy to manufacture, it is very difficult and complicated to form a beautiful pattern on the surface of the housing to make the housing beautiful because its appearance is not common. The plastic housing also provides no protection against electromagnetic interference and affects the quality of the LCD monitor.

In order to print a pattern on a curved surface or a concave surface of a plastic product, the conventional method has to go through a shifting printing process, a thermal transferring printing process, or a process of attaching a protective film. These methods have common drawbacks such as low yield, complex manufacturing processes, easy creases, difficult positioning of printing nets, and difficult overdying. . It is quite difficult to apply this approach to products that require complex color effects or patterns. For LCD monitor products that are generally adopted, consumers always want to have a special pattern with a colorful design. However, products that meet this kind of demand have not been announced on the market today. In short, the conventional manufacturing process could not solve these problems. In other words, this manufacturing process faces problems such as high manufacturing costs, low productivity, and limitations in color or style.

It is an object of the present invention to provide a beautiful LCD monitor having a back cap on the back of the LCD monitor and to allow a desired pattern to be printed on the surface of the cover. As a result, the appearance of the LCD monitor has a great variety of designs, and can satisfy future design trends with their own styles.

Another object of the present invention is to provide a beautiful LCD monitor having a metal rear cover, so as to block electromagnetic interference and to efficiently maintain the heat dissipation effect.

Another object of the present invention is to provide a printing method on a sheeting element that can be used when manufacturing a rear cover of an LCD monitor or a housing of a personal computer. This sheet portion can be printed in a variety of colorful patterns.

1 is a front view illustrating a conventional LCD monitor.

2 is a rear view illustrating the conventional LCD monitor shown in FIG.

3 is an exploded perspective view schematically illustrating an LCD monitor having a beautiful rear design according to a preferred embodiment of the present invention.

4 is an exploded perspective view of the LCD monitor of FIG. 3 according to a preferred embodiment of the present invention.

5 is a process flow diagram schematically illustrating a manufacturing process for forming a back cap for an LCD monitor according to an embodiment of the present invention.

In order to achieve the above technical problem, the present invention provides a liquid crystal display monitor having a beautiful rear surface having a first surface having a display portion and a liquid crystal panel having a second surface facing the first surface. To provide. The front housing covers the first surface of the liquid crystal panel and exposes the display portion. The back housing covers the second surface of the liquid crystal panel. A base portion is fastened to the bag housing by the butt hinge so that the angle of the liquid crystal panel can be adjusted with respect to the base portion. The back cap has a substantially planar outer surface and is disposed in the back housing and comprises a metallic material.

The rear cover includes a plate body and a side wall. The plate body has an outer surface that is substantially planar to the liquid crystal panel and a substantially planar outer surface. This plate body comprises a metallic material. The side wall is adjacent to the edge of the plate body and is perpendicular to the plate body. In addition, the side wall is appropriately used when connecting with the outer edge of the liquid crystal monitor.

According to a preferred embodiment of the present invention, the plate body and the side wall are integrated into one body. The side walls and the corresponding outer edges of the liquid crystal monitor each form a buckle connection structure. The plate body and / or side wall also includes at least one screw hole suitable for fastening the rear cover to the liquid crystal monitor with screws. This rear cover comprises aluminum, an aluminum alloy or a magnesium alloy.

The outer surface of the rear cover has a pattern. This pattern is formed by the surface printing method. In addition, this pattern is formed by an etching process or a sand jet process in order to form a pattern on the surface. The rear cover of the liquid crystal monitor of the present invention also includes a plastic transparent cover, which surrounds the outer surface of the rear cover.

In order to achieve the above technical problem of the present invention, the present invention provides a printing method on a sheet portion that can be applied to the screen rear cover, the electrical appliance housing, the metal packaging housing and the heat dissipation preventing housing of the electrical appliance. The printing method on the sheet plate includes supplying a metal plate. The surface printing process is performed to form a pattern on the surface of the metal plate. A protective film is then deposited on the pattern surface of the metal plate. The drawing process is performed for drawing the metal plate into the desired housing shape as the sheet portion.

According to a preferred embodiment of the invention, prior to the surface printing process step, the invention further comprises a surface film treatment. This surface film treatment includes a step of performing a sand jet treatment or an etching treatment. The metal plate also includes aluminum, aluminum alloy, or aluminum-magnesium alloy. The protective film contains polyurethane (PU). Patterns with various colors can be achieved by performing several plate print processing steps for different colors.

The accompanying drawings are provided to provide a better understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.

3 and 4, FIG. 3 is an exploded perspective view schematically illustrating an LCD monitor having a beautiful rear design according to a preferred embodiment of the present invention. 4 is an exploded perspective view of the LCD monitor of FIG. 3 viewed from the rear; The LCD monitor 200 includes a screen body 210 and a base 208. The screen body 210 includes a front housing 202, an LCD panel 204, and a back housing 206. The base 208 is engaged with the base 208 by a butt hinge to form a holding portion. The LCD panel 204 includes, for example, a thin film transistor LCD panel. The front side 212, which is the first surface, is the display portion 214. The drive device 218 is located in the peripheral area of the display portion 214. The back side 216, which is the second surface, has a portion for installing the backlight and the reflecting portion. The front housing 202 surrounds the front surface 212 of the LCD panel 204 but exposes the display portion 214. The front housing 202 also has a number of adjustment buttons 220 which are used to adjust screen setting parameters such as brightness or contrast and also have holes for audio output (not shown) used to export the voice. have. The back housing 206 surrounds the back side 216 of the LCD panel 204 and is formed with a plurality of heat dissipation holes 222, such as circular holes or slit-shaped holes as shown in FIG. For example, the bag housing 206 is fastened to the base 208 using a hinge or a multi-direction connector. In this manner, the angle between the base 208 and the screen body 210 can be adjusted. The front housing 202, bag housing 206 and base 208 described above are generally made of a plastic material.

The beautiful LCD monitor of the present invention includes a plate body 232 and a side wall 234 and has a rear cover 230 covering the bag housing 206. The shape of the plate body 232 is designed according to the contour of the screen body 210 having the same conformal shape. The outer surface of the plate body 232 is substantially planar and forms a beautiful backside such that the color pattern 238 is printed. The plate body 232 and the side wall 234 may be formed as one integrated body made of metal. It is also possible to prevent electromagnetic interference well. The bag housing 230 is fastened to the screen body 210 by an affixing device. For example, screw holes may be formed in the plate body 232 and / or the sidewalls 234. The bag housing 230 is then fastened to the screen body 210 by screws. Alternatively, the inner surface of the sidewall 234 may be formed with a protruding part and the edge of the bag housing 206 may be formed with a recess, thereby realizing a buckle mechanism. In addition, the edge of the bag housing 206 is formed into a protruding structure and the inner surface of the side wall 234 is formed into a recess, thereby achieving a buckle mechanism. In addition to the fastening means, it is known to those skilled in the art that many other ways of fastening still exist, such as using rivets or bonding. The fastening method is not limited to the above-described method.

In addition, the rear cover 230 may be covered with a transparent protective cover 250 to prevent scratches and the like on the pattern 238 of the rear cover 230. Other schemes with translucent or partially transparent covers can be applied to enhance the beautiful appearance of the back pattern of the LCD monitor. Transparent protective cover 250 comprises a plastic material that can be formed, for example, in a drawing process.

However, in order to achieve the above-described design for the beautiful rear surface, the present invention adopts a manufacturing method for forming the rear cover of the LCD monitor. 5 is a process flow diagram schematically illustrating a manufacturing process for forming a rear cover for an LCD monitor. In Fig. 5, the rear cover of the LCD monitor is formed of a metal plate with work. In step 300, a metal plate is provided for use as a substrate. The metal plate may comprise aluminum, aluminum alloy, or other metal material, for example. In step 302, surface film treatment is optionally performed. In other words, necessary surface work such as etching treatment or sand jet treatment is performed on the surface of the metal plate to which the printed pattern is to be formed in the subsequent process, in which three or more dimensions and various patterns can be obtained. Alternatively, the surface film treatment may be selectively performed according to actual design or needs. Even surface film treatment can be omitted. Instead, in a subsequent process, a printing process is performed on the clean surface of the metal plate.

Then, in step 304, a surface printing process is performed on the metal plate. Since the surface of the metal plate is substantially planar at the present stage, it is very suitable for surface printing which directly prints the pattern on the surface of the metal plate. Once the color pattern is selected, it can be achieved by running several surface printing processes. For example, a surface printed with red, blue and yellow colors can be obtained. After coloring, various color patterns can be obtained. In general, the desired pattern is de-coupled into several base colors, such as three, five or more, depending on the actual color variation. Then, surface printing corresponding to each color is performed and coloring printing is performed. As a result, a colorful pattern is formed. Since the coloring of the surface printing technique can be precisely controlled, the productivity is considerably high. In addition, the speed of forming and printing plates is fast and the manufacturing cost is low. It is very suitable for mass production. Moreover, color separation, plate formation, and coloring can all be performed in a short time, which is very suitable for producing small quantities of various varieties.

Also in step 306, a protective film may be selectively attached onto the metal surface on which the colorful pattern is formed. The protective film includes, for example, polyurethane (PU) or another organic film. The purpose of the protective film is to protect the already printed pattern from being damaged in subsequent processes. Of course, step 306 may associate the surface printed result with the mold design to determine whether a protective film is required. Therefore, the protective film attaching step can be omitted. Then in step 308, a drawing process for forming is performed. The metal plate is drawn when the rear cover of the LCD monitor is formed into a desired shape. In step 310, the final product is obtained. The drawing molding process may include one or more molds to perform the drawing process, depending on the complexity of the LCD monitor. It is also possible to form several assembling holes as required, such as screw holes. Moreover, at the stage of the surface printing process, the alignment mark used for the coloring operation can also be used as the alignment point in the drawing molding process. This can increase the productivity of the product.

Although the foregoing example uses a rear cover of an LCD monitor as an example, it will be understood by those skilled in the art that the present technology can be applied to any plate element, which may include aluminum, aluminum alloy, aluminum magnesium alloy, and the like. . The scope of the present invention is generally applicable to the rear cover of the LCD monitor, the housing of the electrical appliance, the housing of the personal computer, the electrical packaging box or the housing shielding electromagnetic interference. The method of the present invention can be applied to related products having more diverse appearance designs.

In summary, the present invention has at least the following advantages.

1. The LCD monitor having a beautiful backside additionally includes a rear cover which can be formed to have various patterns on the surface by using a surface printing method related to drawing molding. As a result, the LCD monitor can be equipped with various designs, satisfying future design trends according to individual tastes in the future.

2. The LCD monitor with a beautiful backside additionally includes a metal back cover which better protects against electromagnetic interference and enhances the practical and aesthetic effect. Due to the good thermal conductivity of the metal material and the small heat dissipation of the LCD monitor, heat dissipation can be maintained at an appropriate condition.

3. According to the manufacturing method of the present invention, the surface printing process can be performed before forming the sheeting plate, so that the work ability to print the pattern on the sheet plate is improved. At the same time, the present invention also performs surface printing which can improve yield, lower manufacturing costs and can be produced in mass production.

4. According to the manufacturing method of the present invention, after the pattern is printed on the metal plate, the protective film is attached before performing the drawing process. This method reliably prevents damage to the pattern and can be applied to sheet plates having various shapes.

5. The present invention regarding various housings for different products provides the manufacturing technology with the choice of various designs. This can meet the needs of the design for personal taste in the future.

Various modifications or variations to the structure of the present invention will be apparent to those skilled in the art without departing from the scope or spirit of the present invention. It is intended that the present invention cover the various modifications and variations that come within the scope of the appended claims and their equivalents.

Claims (35)

As a liquid crystal display monitor, A liquid crystal panel having a first surface having a display portion and a second surface opposite the first surface, A front housing covering the first surface of the liquid crystal panel and exposing the display unit; A bag housing covering the second surface of the liquid crystal panel, A base secured to the bag housing by a butt hinge, and A back cap having a substantially planar outer surface, covering the bag housing and comprising a metallic material Including, The angle of the liquid crystal panel can be adjusted with respect to the base LCD monitor. In claim 1, And an affixing device for fastening the rear cover to the bag housing. In claim 2, And said fastening means comprises a buckle structure respectively formed on an edge of said rear cover and a corresponding surface of said back housing. delete In claim 1, And said rear cover comprises one material selected from the group consisting of aluminum, aluminum alloys and aluminum / magnesium alloys. In claim 1, And the outer surface of the rear cover comprises a pattern printed on the surface. In claim 1, And said outer surface of said rear cover is a surface printed by an etching process. In claim 1, And the outer surface of the rear cover is a surface printed by sand jet treatment. In claim 1, And a protective film, the liquid crystal monitor covering the outer surface of the rear cover. In claim 9, The protective film is a liquid crystal monitor comprising a plastic material. A rear cover of a liquid crystal screen suitable for use in a liquid crystal monitor having a screen body and a holding portion connected to the screen body, A plate body having the same shape as that of the screen body, having a substantially planar outer surface and comprising a metallic material, partly covering the fixing part of the stand fixed on the back of the monitor, and An edge is connected to the plate body and is perpendicular to the plate body and can be connected to an outer circumference of the screen body Rear cover comprising a. In claim 11, Said plate body and said side wall being an integral body. In claim 11, And a buckle structure each formed at said side wall and a corresponding outer edge of said screen body. delete In claim 11, And the plate body comprises a material selected from the group consisting of aluminum, aluminum alloys and aluminum / magnesium alloys. In claim 11, And the outer surface of the rear cover comprises a pattern printed on the surface. In claim 11, Said outer surface of said rear cover is a surface printed by an etching process. In claim 11, Said outer surface of said rear cover being a surface printed by sand jet processing. In claim 11, And a protective film, the rear cover covering the outer surface of the rear cover. The method of claim 19, Said protective film comprising a plastic material. As a method of manufacturing the rear cover of the liquid crystal monitor, Feeding the metal plate, Performing a surface printing process of printing a pattern on the surface of the metal plate, and Performing a drawing process for drawing said metal plate with said rear cover of said liquid crystal monitor Rear cover manufacturing method of the liquid crystal monitor comprising a The method of claim 21, The method of manufacturing a rear cover of the liquid crystal monitor further comprising performing a surface film treatment before performing the surface printing process. The method of claim 22, And said surface film treatment comprises a sand jet treatment. The method of claim 22, And said surface film treatment comprises an etching treatment. The method of claim 21, And said metal plate comprises one material selected from the group consisting of aluminum, aluminum alloys and aluminum / magnesium alloys. The method of claim 21, After performing the surface printing process, further comprising forming a protective film on the surface of the metal plate having the pattern. The method of claim 26, The protective film is a manufacturing method of the rear cover of the liquid crystal monitor comprising a polyuriten (PU). The method of claim 21, Wherein said pattern comprises color and said surface printing step comprises a printing step. A printing method on a sheet plate comprising one selected from the group consisting of a rear cover of a screen, an electrical appliance, a computer housing, a metal packaging box, and a housing preventing electromagnetic interference, Feeding the metal plate, Performing a surface printing process of printing a pattern on the surface of the metal plate, and Performing a drawing process of drawing the metal plate in a desired shape to form the sheet plate The printing method on a sheet plate comprising a. The method of claim 29, A method of printing on a sheet plate, further comprising the step of performing a surface film treatment before the performing of the surface printing process. The method of claim 30, And said surface film treatment comprises a sand jet treatment. The method of claim 22, And said surface film treatment comprises an etching treatment. The method of claim 29, After performing the surface printing process, further comprising forming a protective film on the surface of the metal plate having the pattern. The method of claim 33, The protective film is a printing method on a sheet plate containing a polyuriten (PU). The method of claim 29, Wherein said pattern comprises color and said surface printing step comprises a printing step.