JP2003316275A - Reinforcement structure for display panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that the reduction in the weight and the miniaturization of a portable apparatus is prevented due to the increment in the weight and the increment, in the volume of a reinforcement member which must be reinforced for protecting a display panel against every external force, in which the reinforcement structure is employed because the display panel provided to a portable apparatus is broken when the external force due to the droppage or the like is applied thereto. <P>SOLUTION: The longitudinal edge side of the rectangular display panel 1 is the part that is most likely to be broken due to the warpage deformation. Thus, a panel holder is fitted up with the reinforcement member 3 only along the longitudinal edge side of the display panel 1, which is the suitable part. Accordingly, the reduction in the weight and the volume of the reinforcement member is achieved, and the miniaturization and the reduction of the portable apparatus are realized. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure for a display panel that is provided in a mobile device such as a mobile phone and displays characters and images.

[0002]

2. Description of the Related Art Mobile phones as mobile devices have been rapidly spread, and along with this, small and lightweight mobile phones have been commercialized. In addition, since the mobile phone is carried and carried, there is a risk that it will be dropped due to an unexpected accident, and even if it is made smaller and lighter, a reinforcing structure is added to the housing in order to have strength to withstand the impact such as a drop. Has been adopted.

On the other hand, the mobile phone is provided with a display device such as an LCD for displaying characters and images. Since this display device is configured by using a member such as glass that is easily damaged by the impact of a drop, the display device itself has a reinforcing structure for preventing the damage.

FIG. 6 is a perspective view showing a mobile phone having a reinforced structure. Reference numeral 100 denotes a display unit housing housing in which a display device is incorporated, which is usually a receiver unit (not shown) for outputting a received audio signal. No) is provided. Reference numeral 200 denotes an operation unit storage housing, one end of which is connected to one end of the display storage housing by a hinge (not shown). The operation unit storage housing is provided with a ten-key pad and the like, and normally a microphone for inputting an audio signal to be transmitted. (Not shown) is provided.

FIG. 7 is an exploded perspective view showing a reinforcing structure of a display panel built in the display housing 100, which is disclosed, for example, in Japanese Patent Laid-Open No. 2001-175608.

In FIG. 7, 1 is a display panel for displaying information such as characters and images, 2 is a panel holder for holding this display panel and covering the display panel 1 from the surroundings, 3
Is a reinforcing member made of a material having rigidity that covers the periphery of the panel holder, and by covering the periphery of the panel holder 2,
Reinforces the entire circumference of one end of the display panel and suppresses deformation in all directions. Reference numeral 4 denotes a front case, 5 denotes a rear case, and a housing for housing the display panel 1, the panel holder 2, and the reinforcing member 3 by combining the front case 4 and the rear case 5, that is, a housing for housing the display unit. It becomes 100.

FIG. 8 is a top view showing the layout of the display panel 1, the panel holder 2 and the reinforcing member 3 housed in the display housing 100 from the front case 4 side. It is held inside and the reinforcing member 3 covers the outer periphery of the panel holder 2.

That is, in the conventional display panel reinforcing structure, the reinforcing member 3 covers and reinforces the entire outer periphery of the panel holder 2 to suppress external force applied to the display panel 1 due to a drop or the like, and prevent damage. It was

[0009]

The damaged portion of the display panel 1 due to an external force such as a drop is determined from the structure of the portable device other than the display device, the structure of the display device, the intensity distribution of the display panel, and the like. In recent years, FEM analysis technology and experience from conventional products have made it possible to estimate the location of damage.

In the conventional display panel reinforcing structure, since the entire outer periphery of the panel holder 2 is covered with the reinforcing member 3, the reinforcing structure is more than necessary to suppress deformation even in a place where there is no danger of damage. The increase in the weight and volume of the reinforcing member has been an obstacle to reducing the size and weight of portable devices.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to reduce the weight and volume of the reinforcing member by disposing the reinforcing member at an appropriate position. There is.

[0012]

A reinforcing structure for a display panel according to claim 1 of the present invention is a rectangular display panel for displaying information such as characters and images. A panel holder that covers the periphery and a rigid reinforcing member that is attached to the panel holder along only the longitudinal edges of the display panel.

A display panel reinforcing structure according to a second aspect of the present invention is the reinforcing structure according to the first aspect, wherein the reinforcing member is formed to have a length that covers a longitudinal region of the display panel. Is.

A reinforcing structure for a display panel according to claim 3 of the present invention is a liquid crystal display panel for displaying information such as characters and images, and a panel holder for holding the liquid crystal display panel and covering the periphery of the liquid crystal display panel. The rigid reinforcing member is attached to the panel holder so as to face the liquid crystal sealing portion of the liquid crystal display panel.

A reinforcing structure for a display panel according to a fourth aspect of the present invention is a rectangular display panel for displaying information such as characters and images, a panel holder for holding the display panel and covering the periphery of the display panel, The display panel includes a reinforcing member attached to the panel holder facing only the corners of the display panel.

A reinforcing structure for a display panel according to a fifth aspect of the present invention is a rectangular display panel for displaying information such as characters and images, a panel holder for holding the display panel and covering the periphery of the display panel, The reinforcing member is attached to the panel holder along a line connecting the diagonals of the display panel and has rigidity.

A reinforcing structure for a display panel according to claim 6 of the present invention is a rectangular display panel for displaying information such as characters and images, a panel holder for holding the display panel and covering the periphery of the display panel, The reinforcing member is attached to the panel holder only along the corners and the longitudinal edges of the display panel.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. 1 is a top view of a display panel reinforcing structure according to a first embodiment of the present invention,
1 is a rectangular display panel, 2 is a panel holder that covers and holds the outer periphery of the display panel, 3 is adhered to the panel holder 2 along the longitudinal edge of the display panel 1 with a double-sided tape or an adhesive, or It is a rigid reinforcing member attached by fitting, and is made of metal or a highly rigid resin material.

That is, in the rectangular display panel 1, the edges in the longitudinal direction are the places most damaged by the deformation of pure bending.
Therefore, in the first embodiment, since the pair of reinforcing members 3 are attached along the longitudinal edges of the display panel 1,
The pair of reinforcing members 3 can suppress the pure bending deformation stress applied to the edges of the display panel 1 in the longitudinal direction. Embodiment 2. 2 is a top view of a display panel reinforcing structure according to Embodiment 2 of the present invention, in which 1 is a liquid crystal display panel,
Reference numeral 2 is a panel holder, 3 is a rigid reinforcing member which is attached to the panel holder 2 by a double-sided tape or an adhesive or is fitted to the panel holder 2 so as to face the liquid crystal sealing portion of the liquid crystal display panel. Made of highly rigid resin material.

That is, in the liquid crystal display panel 1, the liquid crystal sealing portion is a weak portion of the display panel edge. Therefore, in the second embodiment, since the reinforcing member 3 is attached so as to face the liquid crystal sealing portion of the liquid crystal display panel 1, the stress applied to the liquid crystal sealing portion of the liquid crystal display panel 1 by the reinforcing member 3 is suppressed. can do. Embodiment 3. 3 is a top view of a display panel reinforcing structure according to Embodiment 3 of the present invention, in which 1 is a display panel, 2 is a panel holder, and 3 is a panel holder 2 facing a corner of the display panel 1. Adhesive with double-sided tape or adhesive,
Alternatively, it is a rigid reinforcing member attached by fitting, and is made of metal or a highly rigid resin material.

That is, the corner portion of the display panel 1 is the most damaged portion due to contact with the panel holder 2. Therefore,
In the third embodiment, since the reinforcing member 3 is attached so as to face the corner of the display panel 1, the stress applied to the corner of the display panel 1 can be suppressed by the reinforcing member 3. Fourth Embodiment FIG. 4 is a top view of a display panel reinforcing structure according to Embodiment 4 of the present invention, in which 1 is a display panel, 2 is a panel holder, and 3 is the panel holder along a line connecting diagonal corners of the display panel 1. It is a reinforcing member having a rigidity, which is attached to 2 by a double-sided tape or an adhesive or by fitting, and is made of a metal or a highly rigid resin material.

That is, when the display panel 1 is twisted, it is often damaged. Therefore, in the fourth embodiment, since the reinforcing member 3 is attached along the line connecting the diagonals of the display panel 1, it is possible to suppress the twisting stress applied to the display panel 1 by the reinforcing member 3. Embodiment 5. FIG. 5 is a top view of a display panel reinforcing structure according to Embodiment 5 of the present invention, in which 1 is a display panel, 2 is a panel holder, 3 is the above-mentioned panel along the corners and the longitudinal edges thereof. A rigid reinforcing member attached to the holder 2 with a double-sided tape or an adhesive, or attached by fitting, and is made of a metal or a highly rigid resin material.

That is, in the rectangular display panel 1, the edges in the longitudinal direction are the places most damaged by the deformation of pure bending.
Further, the corners of the display panel 1 are the most damaged areas due to contact with the panel holder 2. Therefore, in the fifth embodiment, since the reinforcing member 3 is attached along the corner portion and the longitudinal edge of the display panel 1, the pure bending applied to the longitudinal edge of the display panel 1 by the reinforcing member 3 is performed. The deformation stress can be suppressed, and the stress applied to the corners of the display panel 1 can be suppressed.

[0024]

As described above, according to the first aspect of the present invention, since the reinforcing member is provided only along the longitudinal side of the display panel, the weight of the reinforcing member can be reduced.
There is an effect that the volume can be reduced, and the deformation stress of pure bending applied to the longitudinal side edges of the display panel can be suppressed.

According to the second aspect of the present invention, since the length of the reinforcing member is set to cover the longitudinal region of the display panel, the weight and volume of the reinforcing member can be reduced. effective.

Further, according to the third aspect of the present invention, since the reinforcing member is attached so as to face the liquid crystal sealing portion of the liquid crystal display panel, the weight and volume of the reinforcing member can be reduced, and the liquid crystal can be reduced. This has the effect of suppressing the stress applied to the liquid crystal sealing portion of the display panel.

According to the fourth aspect of the present invention, since the reinforcing member is attached so as to face the corner portion of the display panel, the weight and volume of the reinforcing member can be reduced and the corner of the display panel can be reduced. There is an effect that the stress applied to the portion can be suppressed.

According to the fifth aspect of the present invention, since the reinforcing member is attached along the line connecting the diagonals of the display panel, the weight and volume of the reinforcing member can be reduced.
This has the effect of suppressing the twisting stress applied to the display panel.

Further, according to the invention of claim 6 of the present invention, since the reinforcing member is attached along the corners and the longitudinal edges of the display panel, the weight and volume of the reinforcing member can be reduced. This has the effect of suppressing the deformation stress of pure bending applied to the edges in the longitudinal direction of the display panel and suppressing the stress applied to the corners of the display panel.

[Brief description of drawings]

FIG. 1 is a top view showing a reinforcing structure of a display panel according to a first embodiment of the present invention.

FIG. 2 is a top view showing a reinforcing structure for a display panel according to Embodiment 2 of the present invention.

FIG. 3 is a top view showing a reinforcing structure for a display panel according to Embodiment 3 of the present invention.

FIG. 4 is a top view showing a reinforcing structure for a display panel according to Embodiment 4 of the present invention.

FIG. 5 is a top view showing a display panel reinforcing structure according to a fifth embodiment of the present invention.

FIG. 6 is a perspective view showing a mobile phone adopting a reinforcing structure.

FIG. 7 is an exploded perspective view showing a reinforcing structure of a display panel incorporated in a conventional display housing.

FIG. 8 is a top view showing a positional relationship among a display panel, a panel holder, and a reinforcing member housed in a conventional display unit housing.

[Explanation of symbols]

1 display panel, 2 panel holder, 3 reinforcing member.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Jiro Yoshizawa             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. (72) Inventor Masayuki Miyazaki             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. (72) Inventor Junko Ito             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. F-term (reference) 2H089 HA40 JA10                 5C094 AA15 BA43 FA01 HA08 HA10                 5G435 AA18 BB12 EE05 EE06 EE13                       GG43 LL07 LL08

Claims (6)

[Claims] 1. A rectangular display panel for displaying information such as characters and images, a panel holder for holding the display panel and covering the periphery of the display panel, and the display panel only along the longitudinal edge of the display panel. A reinforcing structure for a display panel, comprising a rigid reinforcing member attached to a panel holder. 2. The reinforcing structure for a display panel according to claim 1, wherein the reinforcing member is formed to have a length that covers a longitudinal region of the display panel. 3. A liquid crystal display panel for displaying information such as characters and images, a panel holder for holding the liquid crystal display panel, covering the periphery of the liquid crystal display panel, and facing a liquid crystal sealing portion of the liquid crystal display panel. A reinforcing structure for a display panel, comprising: a reinforcing member having rigidity attached to the panel holder. 4. A rectangular display panel for displaying information such as characters and images, a panel holder for holding the display panel and covering the periphery of the display panel, and the panel facing only the corners of the display panel. A reinforcing structure for a display panel, comprising a rigid reinforcing member attached to a holder. 5. A rectangular display panel that displays information such as characters and images, a panel holder that holds the display panel and covers the periphery of the display panel, and a panel holder that covers a diagonal line of the display panel. A reinforcing structure for a display panel, comprising a rigid reinforcing member attached to a panel holder. 6. A rectangular display panel for displaying information such as characters and images, a panel holder for holding the display panel and covering the periphery of the display panel, only at corners and edges in the longitudinal direction of the display panel. A reinforcing structure for a display panel, comprising a rigid reinforcing member attached to the panel holder.