KR20070003295A - Cover for protecting a flat display device - Google Patents

Abstract

A cover for protecting a display device is provided to prevent the generation of scratches on a panel unit due to an external impact, by forming a cover layer for the cover of a soft material. A cover is attached to a display device(100) having a panel unit(50), thereby protecting the panel unit. The cover comprises a cover layer(10a) facing the panel unit and a coating layer(10b) formed on the cover layer. The cover layer is formed of a soft material. The cover layer is formed of a polyester resin. The coating layer has a larger strength than the cover layer.

Description

COVER FOR PROTECTING A FLAT DISPLAY DEVICE}

1 is a view showing a state in which a display device protective cover according to an embodiment of the present invention is attached to a display device.

2 is a rear perspective view of a display device protective cover according to an embodiment of the present invention.

3 is a diagram illustrating a state in which a display device protective cover according to an embodiment of the present invention is attached to a display device.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device protection cover, and more particularly, to a display device protection cover attached to a front surface of a display device in order to protect the display device.

With the recent rapid development of semiconductor technology, the demand for display devices that are smaller and lighter and have improved performance is exploding.

Examples of such a display device include a liquid crystal display panel (LCD), a plasma display panel (PDP), an organic light emitting display (OLED), and the like.

Such display devices are not bulky, light in weight, and provide relatively clear display screens. Therefore, all display devices such as TVs, monitors, and mobile phones gradually replace the existing cathode ray tube (CRT). It is used for.

However, in the case of such a display device, since it is not bulky and light in weight, it is likely to be broken, and therefore, great care must be taken in transport and storage. In particular, in the case of the panel unit, which is an essential part of the display device, the surface should not be scratched or foreign matter penetrated during storage and transportation.

Among the display devices, the liquid crystal display device attaches a polarizing plate to the liquid crystal display panel, collects the light passing through the liquid crystal on the liquid crystal display panel in one direction, and enters light into the pixel to display a screen. Therefore, in order to maintain proper display quality of the liquid crystal display device, special care must be taken so that the polarizing plate attached to the liquid crystal display panel is not damaged during storage and transportation of the liquid crystal display device.

Due to such a necessity, a protective film such as vinyl is coated on the liquid crystal display during storage or transportation of the liquid crystal display. However, the protective film covered on the liquid crystal display device is torn during storage and transport, and the polarizing plate on the liquid crystal display panel touches the polarizing plate, thereby causing damage to the polarizing plate, and the foreign matter penetrates, thereby damaging the polarizing plate by pressing or vibrating the protective film. The liquid crystal display device in which the polarizing plate is damaged as described above is deteriorated in display quality and cannot be sold. In particular, when the polarizing plate is made of a material that is easily damaged by foreign substances introduced from the outside, the importance of the display device protective cover increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problem, and an object of the present invention is to provide a display device protective cover having a structure capable of preventing damage to the panel unit during storage and transport of the display device.

A display device protective cover according to the present invention is attached on a display device provided with a panel unit to protect the panel unit. The display device protective cover includes a cover layer facing the panel unit and a coating layer formed on the cover layer. The cover layer is made of soft material.

The cover layer may be made of a polyester resin.

It is preferable that the strength of a cover layer is 10 kg * cm / cm-30 kg * cm / cm.

It is preferable that the strength of the cover layer is substantially 18 kgcm / cm.

The strength of the coating layer is preferably greater than the strength of the cover layer.

The area of the cover layer is preferably smaller than the area of the coating layer, and the overlapping area of the cover layer and the coating layer is surrounded by the non-overlapping area of the cover layer and the coating layer.

It is preferable that a polarizing plate opposing the cover layer is attached to the panel unit, and the polarizing plate is glossy.

The polarizing plate may be made of polyethylene terephthalate (PET) resin.

The panel unit may be a liquid crystal display panel.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 3. These embodiments of the present invention are merely for illustrating the present invention, but the present invention is not limited thereto.

1 illustrates a display device protective cover 10 (hereinafter referred to as a 'protective cover') and a display device 100 according to an exemplary embodiment of the present invention. The protective cover 10 may be attached to the display device 100 to protect it. Examples of the display device 100 include a liquid crystal display, a plasma display, an organic light emitting display, and the like.

As shown in FIG. 1, the display device 100 is formed by assembling the top chassis 60 at the edge of the panel unit 50. The display device 100 may be stored or transported by attaching a protective cover 10 on the top chassis 60 surrounding the panel unit 50 to protect the panel unit 50 of the display device 100. That is, the protective cover 10 is attached to the front surface of the display device 100 to cover the panel unit 50 of the display device 100.

The protective cover 10 includes a cover layer 10a (dotted line) and a coating layer 10b. The area of the cover layer 10a is smaller than the area of the coating layer 10b. Here, the area means a plane parallel to the XY plane. Accordingly, the cover layer 10a faces the panel unit 50 while fixedly attaching the coating layer 10b on the top chassis 60.

The protective cover 10 may be manufactured by forming a coating layer 10b on a cover layer 10a made of a polyester resin. The coating layer 10b may be formed by coating on the cover layer 10a by a lamination method. The coating layer 10b may be formed using a hard material. Therefore, the strength of the coating layer 10b is greater than the strength of the cover layer 10a described above. The materials of the cover layer 10a and the coating layer 10b described above are merely to illustrate the present invention, but the present invention is not limited thereto. Therefore, the cover layer 10a and the coating layer 10b may be formed of other materials.

The cover layer 10a facing the panel unit 50 can prevent scratches from occurring in the panel unit 50 by using a soft material. It prevents the occurrence of scratch by blocking foreign substances flowing from the outside by static electricity. For this purpose, the strength of the cover layer 10a is preferably 10kgcm / cm to 30kgcm / cm. In particular, the strength of the cover layer 10a is preferably 18 kg · cm / cm. Strength here means impact strength. The cover layer 10a is mainly formed of a polyester material, but it is difficult to produce a polyester having a strength of less than 10 kg · cm / cm. In addition, if the strength of the cover layer 10a exceeds 30 kg · cm / cm, there is a possibility that the surface of the panel unit is damaged when attached to the panel unit.

Since the strength of the panel unit 50 is greater than that of the cover layer 10a, the panel unit 50 is not damaged. In addition, it is possible to protect the panel unit 50 from external impact by using a hard material having a relatively high strength for the coating layer 10b exposed to the outside. Therefore, the panel unit 50 may be prevented from being damaged while the display device 100 is being transported or transported.

2 shows the protective cover 10 shown in FIG. 1 upside down.

The protective cover 10 shown in FIG. 2 includes an overlapping region A in which the cover layer 10a and the coating layer 10b overlap, and a non-overlapping region B in which the cover layer 10a and the coating layer 10b do not overlap. ) Here, the overlapping region A is surrounded by the non-overlapping region B, and the coating layer 10b forms the non-overlapping region B.

The enlarged circle of FIG. 2 shows the cross-sectional structure of the boundary surface of the overlap area | region A and the non-overlap area | region B. FIG. As shown in the enlarged circle of FIG. 2, the overlapping region A and the non-overlapping region B are formed based on the formation state of the cover layer 10a and the coating layer 10b.

Since the protective cover 10 has such a structure, the overlapping region A in which the cover layer 10a of the soft material is formed may be attached to the panel unit to protect the panel unit, and the coating layer 10b of the hard material may be The formed non-overlapping region B is attached to the outer periphery of the panel unit so as to protect the panel unit from external impact while preventing the inflow of foreign substances from the outside. Hereinafter, a state in which the protective cover 10 is attached to the display device will be described in detail with reference to FIG. 3.

 3 illustrates a state in which the protective cover 10 is attached to the display device 100. 3 shows an internal cross-sectional structure of the display device 100 with the protective cover 10 attached thereto.

An enlarged circle of FIG. 3 shows a liquid crystal display as an example of the display device 100. Such a liquid crystal display device is only for illustrating the present invention and the present invention is not limited thereto. Therefore, the present invention can be applied to display devices other than the liquid crystal display device.

The liquid crystal display shown in Fig. 3 displays an image on the liquid crystal display panel 50, which is a panel unit, using light supplied from the bottom.

The liquid crystal display panel 50 includes a TFT panel 51 composed of a plurality of TFTs (thin film transistors), a color filter panel 53 positioned on the TFT panel 51, and a liquid crystal (injected between these substrates). Not shown). Polarizing plates 53a and 51a are attached to the upper portion of the color filter panel 53 and the lower portion of the TFT panel 51 to polarize light passing through the liquid crystal display panel 50.

The TFT panel 51 is a transparent glass substrate on which a matrix thin film transistor is formed, a data line is connected to a source terminal, and a gate line is connected to a gate terminal. In the drain terminal, a pixel electrode made of transparent indium tin oxide (ITO) as a conductive material is formed.

When electrical signals are input to the gate line and the data line of the liquid crystal display panel 50 described above, electrical signals are input to the gate terminal and the source terminal of the TFT, and the TFT is turned on or turned in accordance with the input of these electrical signals. It is turned off so that an electrical signal necessary for pixel formation is output to the drain terminal.

On the other hand, the color filter panel 53 is disposed on the opposing TFT panel 51. The color filter panel 53 is a substrate in which RGB pixels, which are color pixels in which a predetermined color is expressed while light passes, are formed by a thin film process, and a common electrode made of ITO is coated on the entire surface thereof. When power is applied to the gate terminal and the source terminal of the TFT and the thin film transistor is turned on, an electric field is formed between the pixel electrode and the common electrode of the color filter substrate. By this electric field, the arrangement angle of the liquid crystal injected between the TFT panel 51 and the color filter panel 53 is changed, and the light transmittance is changed according to the changed arrangement angle to obtain a desired pixel.

Since the liquid crystal display panel 50 is a light-receiving element that does not emit light by itself, light is supplied from the bottom to display an image. In order to supply light to the liquid crystal display panel 50, the display device 100 includes a light source 76, a light source cover 75, a light guide plate 74, and an optical sheet 72. The light emitted from the light source 76 is incident to the light guide plate 74 and guided, and the luminance is improved while passing through the optical sheet 72 to be supplied to the liquid crystal display panel 50. The light source cover 74 protects the light source 76 from external impact. As the light source 76, a light emitting diode (LED) may be used in addition to the lamp. In addition, a light source of a linear light source or a surface light source may be used.

The top chassis 60, the upper mold frame 62, the lower mold frame 64, and the bottom chassis 79 are combined to fix the display device 100. .

When the polarizing plate 53a attached to the panel unit 50 of the display device 100 is glossy, it is important to prevent scratches from appearing in order to maintain gloss in appearance. Therefore, the cover layer 10a of the protective cover 10 faces the polarizing plate 53a. As such a glossy polarizing plate 53a, a PET material is mentioned as an example. Since the outside of the protective cover 10 is covered with the coating layer 10b fixed to the top chassis 60, it is not only resistant to external impact but also may block external foreign substances P from flowing.

Therefore, by using the protective cover 10, it is possible to prevent the liquid crystal display panel 50 from being damaged while the display device 100 is being transported or transported.

As described above, the display device protective cover according to the present invention includes a cover layer facing the panel unit and a coating layer formed on the cover layer, and since the cover layer is made of a soft material, scratches are applied to the panel unit during external impact. It can be prevented from occurring. In addition, since the cover layer is a soft material, it is possible to capture and absorb foreign substances flowing into the panel unit, thereby realizing a clear image on the display device.

The overlapping area of the cover layer and the coating layer may be surrounded by the non-overlapping area of the cover layer and the coating layer so that the cover layer may face the panel unit while fixing the coating layer to the top chassis, thereby effectively blocking the inflow of foreign substances.

When the polarizing plate attached to the panel unit is glossy, the panel unit can be efficiently protected by using a soft cover layer.

Although the present invention has been described above, it will be readily understood by those skilled in the art that various modifications and variations are possible without departing from the spirit and scope of the claims set out below.

Claims (9)

A display device protective cover attached to a display device having a panel unit to protect the panel unit, And a cover layer facing the panel unit and a coating layer formed on the cover layer, wherein the cover layer is made of a soft material. In claim 1, The cover layer is a display device protective cover made of polyester (polyester) resin. In claim 1, The cover layer may have a strength of 10 kg · cm / cm to 30 kg · cm / cm. In claim 3, A cover for protecting a display device, wherein the cover layer has a strength of substantially 18 kg · cm / cm. In claim 3, And a strength of the coating layer is greater than that of the cover layer. In claim 1, An area of the cover layer is smaller than an area of the coating layer, and an overlapping area of the cover layer and the coating layer is surrounded by a non-overlapping area of the cover layer and the coating layer. In claim 1, And a polarizing plate facing the cover layer is attached to the panel unit, and the polarizing plate is glossy. In claim 7, The polarizing plate is a protective cover for a display device made of polyethylene terephthalate (PET) resin. In claim 1, And the panel unit is a liquid crystal display panel.

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