JP2002108236A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the influence of strength to be applied to a display device from the outside upon the panel of the display device. SOLUTION: In the display device in which a display panel 2 is arranged so as to be held between frames 4, 5 of upper and lower sides and a hole 9 for mounting is formed in the frame 5 of the lower side, a prescribed hollow 15 for forming a prescribed gap between the hole 9 and the display panel 2 is formed at the part positioned between the hole 9 for mounting of the frame 5 of the lower side and the display panel 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device such as a liquid crystal display device, and more particularly, to a display device having an outer peripheral portion provided with holes for attaching to peripheral components.

[0002]

2. Description of the Related Art A flat display device represented by a liquid crystal display device is modularized so that it can be handled in the same manner as one component, and is used by being fixed in a case such as a personal computer or a monitor with screws. As a typical structure for fixing the modularized display device to the case, there is known a structure in which the display device is screwed in a direction perpendicular to the display surface using ear-shaped mounting pieces provided on both sides of the display device. However, due to the presence of the mounting piece, the width of a portion called a frame around the device cannot be reduced. Therefore, in order to cope with narrowing of the frame, a structure has been proposed in which the mounting pieces for screwing which have been conventionally arranged on both sides are omitted, and screws are screwed in a direction parallel to the display surface using the side surface of the device. ing.

[0003]

SUMMARY OF THE INVENTION As described above, in a structure in which a side surface of a display device can be used for screwing in a direction parallel to a display surface, the display device is actually used with screws. Then, it has been found that external stresses such as vibration are easily transmitted to the panel, which adversely affects the display state (paddling, generation of ripples).

Accordingly, an object of the present invention is to reduce external stress transmitted to a panel via a fixed portion of a display device.
One. Another object is to provide a structure for maintaining a favorable display state.

[0005]

According to a first aspect of the present invention, a display panel is disposed so as to be sandwiched between upper and lower frames, and a mounting hole is formed in a lower frame. In the formed display device, a recess for forming a predetermined gap between the display panel and the display panel is formed in a portion of the lower frame located between the mounting hole and the display panel. I do.

According to a second aspect of the present invention, there is provided a display device in which a display panel is arranged so as to be sandwiched between upper and lower frames and a mounting hole is formed in a lower frame. A recess is formed in a portion of the lower frame located between the mounting hole and the upper frame to form a predetermined gap between the upper frame and the lower frame.

According to a third aspect of the present invention, there is provided a display device in which a display panel is disposed so as to be sandwiched between upper and lower frames, and a mounting hole is formed in a side surface of the upper and lower frames. Wherein a predetermined recess is formed in a lower surface portion of the upper or lower frame located below the mounting hole.

According to a fourth aspect of the present invention, the mounting hole is formed on a side surface or a lower surface of a lower frame.

According to a fifth aspect of the present invention, the mounting hole is arranged so as to overlap the display panel in a plane.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings, taking a liquid crystal display device as an example. FIG. 1 is a plan view of a modularized liquid crystal display device 1, and FIG.
FIG. 3 is an enlarged plan view of a portion A of FIG. 1 in a partially cutaway state, and FIG. 4 is a side view of the portion A of FIG.

As shown in FIG. 1, the liquid crystal display device 1 has a rectangular planar shape and a liquid crystal display panel 2 is exposed at the center. The periphery of the display device 1 is surrounded by a frame 3 to form a frame shape.

The frame 3 is constituted by upper and lower frames 4 and 5 arranged so as to sandwich the display panel 2 from above and below. The upper frame 4 is formed of a metal frame that is formed by sheet metal processing so as to integrally include an orthogonal upper surface 4a and side surfaces 4b. The lower frame 5 is formed of a resin frame processed into a shape capable of supporting the outer periphery of the display panel 2.

The display panel 2 has a configuration in which polarizing plates 7, 7 are arranged outside glass substrates 6, 6 sandwiching liquid crystal. Since the display panel 2 is of a transmissive type, the backlight device 8 is disposed below the display panel 2. Backlight device 8
Has a planar shape equivalent to that of the display panel 2, and includes a light guide plate 9, an optical sheet 10 disposed thereon, a reflection sheet 11 disposed below the light guide plate 9, and a side surface of the light guide plate 9. And a light source (not shown). In the case where the display panel 2 is of a reflection type or the like, the backlight device 8 may not be necessarily provided, and only one polarizing plate 7 may be used.

The lower frame 5 has a cross section of one side as shown in FIG. 2, and has a stepped shape having a plurality of steps gradually decreasing from the outside to the inside. I have. A screw hole 12 as a mounting hole is formed in the thick portion of the lower frame 5 as shown in FIG. This screw hole 12
Is formed on the metallic cylindrical receiving member 13 embedded in the lower frame 5, but may be formed directly on the resin portion. Further, a screw hole may be formed after burring or the like is performed on the side surface 4b of the frame 4.

The upper portion 5a of the step portion is in contact with or close to the back side of the upper surface 4a of the frame 4 and is located on the side of the panel 2. A region of the upper portion 5a located above the screw hole 12, that is, the screw hole 12 and the upper surface 4a of the frame 4.
In a region located between the upper portion 4a and the upper surface 4a, there is formed a recessed portion 14 which is recessed so as to keep a predetermined space sufficiently larger than the other upper step portion 5a. The depression 14 is formed over a range sufficiently longer than the diameter of the screw hole 12, as shown in FIGS. The middle portion 5b of the step portion is disposed in contact with or close to the lower side of the end of the panel 2 so as to support the end of the display panel 2. In the region located above the screw hole 12, that is, the region located between the screw hole 12 and the panel 2 in the middle portion 5 b, a predetermined gap between the middle portion 5 b and the panel 2 is sufficiently larger than the other middle portions 5 b. Is formed so as to maintain the height. The depression 15 is also formed in the same range as the depression 14. The lower portion 5c of the step portion is disposed in contact with or close to the lower side of the end of the backlight device 8 so as to support the end of the backlight device 8.

On the side surface 4b of the upper frame 4, the screw hole 1 is provided.
2, a hole 16 having a size equal to or larger than the screw hole 12 is formed. A predetermined recess 17 is formed in a portion of the display device located below the hole 12. The recess 17 is formed by cutting out a part of the side surface 4 b located below the hole 16 over a range wider than the width of the hole 16. The uppermost part of the recess 17 is located higher than the lowermost surface of the display device 1.
A fixing piece 18 that is bent to fix the frame 4 and the frame 5 is formed at an appropriate position on the side surface 4b.

The screw hole 12 formed in the vicinity of A in FIG. 1 and the step structure located in the periphery thereof are similarly formed in the regions shown in B, C, and D in FIG. That is, screw hole 1
2 and its related structure are two opposite sides of the display device 2,
In this example, the short sides are formed at predetermined intervals. This structure can be formed not only on the short side but also on the remaining two opposite sides, in this example, the long side. Also,
Instead of two places on one side, three or more places may be arranged.

The assembled display device 1 has a screw hole 12.
A screw (not shown) is inserted into the box to be used by being fixed to a mounting portion (metal stay) such as a personal computer or a monitor. Here, external stress such as external vibration and impact is easily transmitted to the display device 1 through the screw hole 12 serving as a screw receiving portion. In particular, as the thickness of the display device 1 becomes extremely thin, about several mm, the display device 1 becomes more susceptible to twisting and vibration. As a result, the resin frame 5 located around the screw hole 12 is easily deformed under the influence of external stress.
Due to this deformation or the like, an unnecessary force acts directly on the display panel 2 and adversely affects the display state (paddling, generation of ripples, etc.). Also, the upper part 5a of the frame 4 and the frame 5
Unnecessary force acts on the display panel 2 indirectly due to the contact, and adversely affects the display state. In particular, when a liquid crystal display panel is used as the display panel 2 and the panel 2 and the frame 4 are arranged close to each other, the gap of the panel changes due to the stress applied to the display panel 2 via the screw holes 12. And the display state is likely to be affected.

Therefore, the structure around the screw hole 12 is modified to avoid the influence of external stress. That is, since the recessed portion 14 is formed between the screw hole 12 and the frame 4 as described above, even if the upper portion 5a moves up and down due to the stress caused by the force applied to the screw hole 12 and the hole 16, the effect is reduced. The part 14 absorbs and disperses. Further, since the recessed portion 15 is formed between the screw hole 12 and the panel 2 as described above, even if the middle portion 5b moves up and down due to the stress caused by the force applied to the screw hole 12 and the hole 16, the effect is reduced. The part 15 absorbs and disperses. Furthermore, since the recess 17 is formed below the screw hole 12 as described above, the screw hole 12 and the hole 16 are formed.
Even if the side surface 4b moves up and down due to the stress caused by the force applied to the surface, the depression 17 absorbs and disperses the influence.

The depressions 14 and 15 are 0.2 to 0.5
It has a depth of about mm and is formed in a region shown by cross-hatched lines in FIG. The depression 17 is also 0.2-0.
It is formed to a depth of about 5 mm. Recesses 14, 15,
The depth of 17 is set to 0.2, which is sufficiently larger than the normally occurring gap.
By setting the size to not less than mm, the external force can be effectively absorbed or dispersed.

As described above, the recesses 1 are formed above and below the screw hole 12.
Since the display devices 4, 15, and 17 are arranged, when the display device 2 is screwed using the screw holes 12, the force concentrated in the vicinity of the screw holes 12 can be absorbed or effectively dispersed to the periphery. Thus, adverse effects on the display panel 2 can be reduced.

In the above embodiment, the screw hole 12 is provided in the display device 1.
Although the case where it arrange | positions in the position facing the side surface of the example was taken as an example, this invention can be applied to other structures, for example, as shown in FIG. The present invention can also be applied to a case in which it is formed. here,
In any case, since the screw holes 12 are arranged at positions overlapping the display panel 2 in a plane, a narrower frame can be achieved as compared with the case where the screw holes 12 are arranged at positions not overlapping the display panel 2 in a plane. Can be. In the above embodiment, the liquid crystal display device is taken as an example, but the present invention can be applied to other display devices such as a display device using an EL panel.

[0023]

As described above, according to the present invention, the external stress applied through the mounting hole can be absorbed or dispersed to the surroundings by the depressions arranged around the hole. As a result, it is possible to prevent the display state from deteriorating due to the concentration of stress on the display panel, and to maintain good display quality. Further, a display device having a thin structure or a narrow frame structure can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view of a display device according to an embodiment of the present invention.

FIG. 2 is a sectional view of a portion A in FIG.

FIG. 3 is an enlarged plan view of a part A of FIG. 1 in a partially cut-out state.

FIG. 4 is a side view of a portion A in FIG. 1;

FIG. 5 is a sectional view of a display device according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Display panel 4 Frame 5 Frame 12 Screw hole 14 Depression part 15 Depression part 17 Depression part

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazutoshi Katsukawa 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture F-term in Tottori Sanyo Electric Co., Ltd. 2H089 HA40 QA02 QA03 TA10 TA15 TA18 5G435 AA00 AA09 BB12 BB15 EE03 EE04 EE05 EE08 EE13 EE27 FF08 GG22

Claims (5)

[Claims] 1. A display device having a display panel disposed between upper and lower frames and having a mounting hole formed in a lower frame, wherein the mounting hole and the display of the lower frame are provided. A display device, wherein a recess is formed in a portion located between the panels to form a predetermined gap between the display panel and the display panel. 2. A display device wherein a display panel is disposed so as to be sandwiched between upper and lower frames, and wherein a mounting hole is formed in a lower frame, wherein the mounting hole and the upper side of the lower frame are provided. A display device, wherein a recess for forming a predetermined gap between the upper frame and a portion located between the frames is formed. 3. A display device in which a display panel is disposed so as to be sandwiched between upper and lower frames, and a mounting hole is formed in a side surface of the upper and lower frames. A display device, wherein a predetermined recess is formed in a lower surface portion located below the hole. 4. The display device according to claim 1, wherein the mounting hole is formed on a side surface or a lower surface of a lower frame. 5. The display device according to claim 1, wherein the mounting hole is arranged so as to overlap the display panel in a planar manner.
The display device according to claim 1 or 2.