KR101082223B1 - Window installing structure of mobile communication terminal - Google Patents

Abstract

According to an aspect of the present invention, there is provided a window coupling structure of a mobile communication terminal, comprising: a flat panel display panel; A case housing including an accommodating part accommodating the flat panel display panel and a stepped part at one side of the accommodating part; A window positioned on the stepped portion as an outer surface on which an image of the case housing is displayed; And a silicon gel filled in an area in the case housing between the flat panel display panel and the window to attach the flat panel panel to the window, wherein the flat panel panel is an organic light emitting display panel.

Description

Window installing structure of mobile communication terminal

The present invention relates to a window coupling structure of a mobile communication terminal, and more particularly, to a window coupling structure of a mobile communication terminal using a silicone gel as a filling material.

Recently, various flat panel displays have been developed to reduce weight and volume, which are disadvantages of cathode ray tubes. The flat panel display includes a liquid crystal display, a field emission display, a plasma display panel, and an organic light emitting display.

Here, the liquid crystal display and the organic light emitting display have the advantages of miniaturization, light weight, and low power, and thus have been gradually attracting attention as an alternative means of overcoming the disadvantages of the existing cathode ray tube, and now mobile phones and PDAs (Portable digital) Almost all of them are employed in a display unit of a mobile communication terminal such as an assistant.

However, when the liquid crystal display device or the organic light emitting display device is provided in the mobile communication terminal, that is, the flat panel display device is provided in the case housing, the window is attached to the surface on which the image is displayed.

In more detail, the window coupling structure of a conventional mobile communication terminal includes a case housing forming the overall appearance of the terminal, and a flat panel display device (eg, a liquid crystal display) installed inside the case housing to display contents by user manipulation. Device), a window provided on an outer surface of the case housing to prevent damage to the flat panel display device, and a double-sided tape interposed between the case housing and the window to allow the window to adhere to the case housing. Is done.

However, such a coupling structure according to the related art generates a space between the window and the display device, that is, an air gap by attaching the display device on the case housing, thereby reducing luminance and clarity of the screen due to light refraction. There is a problem.

 In addition, an unnecessary space is formed between the case housing and the window, making it difficult to achieve slimming of the mobile communication terminal.

The present invention is to overcome the disadvantage of falling sharpness by the refraction of light by filling the adhesive rubber type silicone gel between the flat panel display panel installed in the case housing and the window located on the outer surface on which the image of the case housing is displayed. An object of the present invention is to provide a window coupling structure of a mobile communication terminal that enables the slimming of a mobile communication terminal.

In order to achieve the above object, a window coupling structure of a mobile communication terminal according to an embodiment of the present invention includes a flat panel display panel; A case housing including an accommodating part accommodating the flat panel display panel and a stepped part at one side of the accommodating part; A window positioned on the stepped portion as an outer surface on which an image of the case housing is displayed; And a silicon gel filled in an area in the case housing between the flat panel display panel and the window to attach the flat panel panel to the window, wherein the flat panel panel is an organic light emitting display panel.

According to the present invention, by applying a window-bonded structure using a silicone gel as a filling material, there is an advantage to improve the mechanical strength (impact resistance), to remove the refractive phenomenon, to slim the terminal, to suppress the entry of foreign matter.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a window coupling structure of a mobile communication terminal according to an embodiment of the present invention.

As shown in FIG. 1, a window coupling structure of a mobile communication terminal according to an embodiment of the present invention includes a case housing 10, a flat panel display panel 20 accommodated in the case housing 10, and the case housing. A window 30 positioned on an outer surface on which the image of FIG. 10 is displayed, and a silicon gel 40 filled in an area between the flat panel display panel 20 and the window to attach the flat panel display panel to the window. .

The case housing 10 is formed to form an overall appearance of a mobile communication terminal folder as an example, and includes a display device accommodating part 11 therein and a stepped portion along an upper circumference of the display device accommodating part 11. 12) is formed.

The flat panel display panel 20 is a display element such as an LCD or an organic EL to display the contents according to the user's operation, a printed circuit board and various electronic components are mounted, in the case of an embodiment of the present invention is organic electroluminescence A display panel will be described. A detailed configuration of the organic light emitting display panel will be described with reference to FIG. 2.

The flat panel display panel 20 is installed inside the display device accommodating part 11 of the case housing 10.

The window 30 has a shape corresponding to the stepped portion 12 formed along the upper circumference of the accommodating portion 11 of the case housing 10, and is configured to prevent damage to the flat panel display panel 20 and input of foreign matter. . At this time, the window 30 can be configured as a glass plate, acrylic or thin film type.

In the exemplary embodiment of the present invention, the silicon gel 40 is filled in an area in the case housing 10 corresponding to the flat panel display panel 20 and the window 30. That is, the silicone gel 40 is preferably applied to the window coupling structure of the mobile communication terminal because of its high transmittance and good adhesion.

Unlike the UV curable filling material, there is no yellowing phenomenon, and there is no shrinkage / expansion, and thus, in implementing the window coupling structure of the terminal, the force between the flat panel display panel 20 and the window 30 can be maintained uniformly.

In addition, when failure occurs after bonding, the rework is possible using the characteristics of the silicone gel 40 itself, that is, adhesive force, and thus, the process cost may be greatly reduced.

Unlike the silicone oil, the silicone gel 40 is a structure in which molecular chains are connected to each other by a crosslinking point, and thus cannot move with each other. However, the silicone gel 40 has no fluidity, but has a large degree of freedom, resulting in elasticity, thus exhibiting rubber-like properties. This is also advantageous for external shocks.

Due to the characteristics of the silicone gel, even when the flat panel display device is implemented as a touch screen panel, it has sufficient durability against external shock relief as well as a pressing force through a hand or a pen, and does not cause yellowing. Since it is possible to maintain a uniform gap between them, there is an advantage that the touch sensitivity can be increased.

In addition, there is no space between the panel and the window, thereby preventing the panel's readability and failure due to the introduction of foreign matter.

On the other hand, the flat panel display panel 20 is attached to the inner wall of the window 30 and the receiving portion 11 on the upper and lower surfaces by filling the silicon gel 40 to be in close contact with each other to provide the window and the flat panel of the prior art. Compared with the intervals, it is possible to realize a superior slimming, and thus the distance between the flat panel display panel 20 and the window 30 is reduced, so that the display screen is displayed in close contact with the window 30, thereby improving image quality. The effect can also be obtained.

FIG. 2 is a block diagram illustrating a configuration of the organic electroluminescent display panel shown in FIG. 1.

However, this describes an embodiment of the organic electroluminescent display panel provided in the present invention, and the configuration of the organic electroluminescent display panel according to the present invention is not necessarily limited thereto.

Referring to FIG. 2, the active organic light emitting display panel 20 includes a substrate 400, an encapsulation substrate 500, a frit 450, and a reinforcing material 460 which are positioned above and encapsulated the substrate 400. It is configured to include).

The substrate 400 is a plate including an organic light emitting diode, and is formed at an outer edge of the display area 400a and the display region 400a on which at least one organic light emitting diode including the first electrode, the organic layer, and the second electrode is formed. Non-display area 400b.

In this case, the display area 400a is an area where a predetermined image is displayed due to the light emitted from the organic light emitting element, and the non-display area 400b means all areas other than the display area 400a on the substrate 400. However, in the exemplary embodiment of the present invention, the non-display area 400b in which the second panel adjacent to the first panel overlaps the first panel is preferably an area in which the drive IC 470 is mounted.

The display area 400a includes a plurality of scan lines S1 to Sm arranged in the row direction and a plurality of data lines D1 to Dm arranged in the column direction, and the scan lines S1 to Sm and the data lines D1 to Dm. Dm) is provided with a plurality of pixels to which a signal is applied from a drive circuit for driving the organic light emitting element.

In addition, the non-display area 400b includes a drive IC 170 for driving the organic light emitting diode and a metal wire electrically connected to the scan lines S1 to Sm and the data lines D1 to Dm of the display area, respectively. . In the present embodiment, the drive IC includes a data driver and a scan driver.

In addition, the encapsulation substrate 500 is a member that encapsulates at least the display area 100a of the substrate on which the organic light emitting diode is formed, and is formed of a transparent material in the case of front emission or double-side emission. do. In the present invention, the material of the encapsulation substrate 200 is not limited, but in the present embodiment, for example, in the case of front emission, glass may be preferably used.

The encapsulation substrate 500 has a plate shape in this embodiment, and encapsulates the display area in which the organic light emitting element on the substrate 100 is formed. For example, in this embodiment, the entire area except for the drive IC and the pad portion is sealed.

In addition, the frit 450 is formed between the encapsulation substrate 500 and the non-display area 400b of the substrate 400 to seal the display area 400a to prevent outside air from penetrating, and the reinforcing material 460 is the frit 450. And the substrate 400, the encapsulation substrate 500, and the frit 450 are made of glass to prevent the organic light emitting display from being easily broken, and the frit 450 is fused and bonded. If it does not, or the adhesive strength is weakened, it is formed of a reinforcing material to serve as a sealing material.

As mentioned above, although this invention was demonstrated in detail using the preferable embodiment, the scope of the present invention is not limited to a specific embodiment and should be interpreted by the attached claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

1 is a cross-sectional view showing a window coupling structure of a mobile communication terminal according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of an organic electroluminescent display panel illustrated in FIG. 1.

<Explanation of symbols for the main parts of the drawings>

10: case housing 20: flat panel display panel

30: Windows 40: Silicone Gel

Claims (2)

A flat panel display panel; A case housing including an accommodating part accommodating the flat panel display panel and a stepped part at one side of the accommodating part; A window positioned on the stepped portion as an outer surface on which an image of the case housing is displayed; And a silicon gel filled in an area in the case housing between the flat panel display panel and the window to attach the flat panel panel to the window. The method of claim 1, And the flat panel display panel is an organic light emitting display panel.

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