Computer graphics processing and selective visual display system – Display peripheral interface input device
Reexamination Certificate
2000-03-09
2003-05-06
Schuberg, Darren (Department: 2835)
Computer graphics processing and selective visual display system
Display peripheral interface input device
C345S905000, C248S918000
Reexamination Certificate
active
06559829
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a structure for installing a flat display device on an installation face.
BACKGROUND ART
First Background Art and Problem Thereof
FIG. 29
is a perspective view schematically showing a structure of flat display device according to a first background (prior art) art disclosed in Japanese Laid-Open Patent Publication No. Hei 1-273086. In
FIG. 29
, the reference numeral
101
denotes a display unit such as a plasma display device, and the reference numeral
102
denotes a fixing member for hanging and installing the display unit
101
on a wall. The fixing member
102
is constituted by a frame
121
, a frame
122
, a check plate
123
and a hook fixture
124
. As shown in
FIG. 29
, first of all, ends
1211
,
1221
,
1212
and
1222
of the frames
121
and
122
and two projected ends
1231
on the upper side of the check plate
123
are inserted and fixed into holes
1115
,
1116
,
1113
,
1114
,
1111
and
1112
provided on a rear face of the display unit
101
, respectively. Then, a hole
1241
of the hook fixture
124
is hung on a screw fixed to a wall surface or the like. Thus, the display unit
101
is installed on the wall surface. Alternatively, the fixing member
102
is previously fixed to the wall surface with a screw or the like through the hole
1241
of the hook fixture
124
, and the display unit
101
is then attached to the fixing member
102
as described above. Consequently, the display unit
101
is installed on the wall surface.
According to the structure in accordance with the first background art, however, the display unit
101
and the fixing member
102
are fixed by simply inserting the ends
1211
,
1221
,
1212
,
1222
and
1231
into the holes
1115
,
1116
,
1113
,
1114
,
1111
and
1112
respectively. Therefore, it can be supposed that both the display unit
101
and the fixing member
102
shift or slip down in some cases.
According to the structure in accordance with the first background art, furthermore, the display unit
101
should be fixed onto the wall surface through a work for inserting the four ends
1211
,
1221
,
1212
and
1222
of the frames
121
and
122
and the two projected ends
1231
on the upper side of the check plate
123
into the fitting holes
1115
,
1116
,
1113
,
1114
,
1111
and
1112
, respectively. Therefore, a high dimensional precision is required for the shape of each portion. For this reason, the flat display device according to the first background art has a problem in that a manufacturing cost is increased.
Second Background Art and Problem Thereof
FIGS. 30 and 31
are sectional views schematically showing a structure of a flat display device according to a second background (prior art) art disclosed in Japanese Laid-Open Patent Publication No. Hei 9-127882.
FIG. 30
is a longitudinal sectional view showing a state in which a display unit
201
such as a plasma display device is hung and installed on a wall hook
2401
provided on a wall surface
204
, and
FIG. 31
is an enlarged view showing a part AP enclosed by a broken line portion in FIG.
30
. In
FIG. 31
, the reference numeral
230
denotes an engaging portion. The engaging portion
230
has an opening
230
a
, a notch portion
230
b
and a shaft
230
c
. As shown in
FIG. 31
, the wall hook
2401
is engaged with the notch portion
230
b
of the engaging portion
230
.
The flat display device according to the second background art has a structure capable of changing a configuration of the engaging portion
230
, thereby coping with both the case where the display unit
201
is hung and installed on the wall and the case where the display unit
201
is installed as a stationary type. A structure of the engaging portion
230
will be described below with reference to perspective views of
FIGS. 32 and 33
.
As shown in
FIGS. 32 and 33
, the shaft
230
c
of the engaging portion
230
is inserted and fitted in a shaft hole
2303
formed on a side face of a concave portion
2301
provided on a rear face of the display unit
201
, and the engaging portion
230
has a link mechanism which is rotatable around the shaft
230
c
. In this case, as shown in
FIG. 32
, the engaging portion
230
is brought down in a direction perpendicular to the rear face of the display unit and a strut which is not shown is inserted and fitted in the opening
230
a
of the engaging portion
230
. Thus, the flat display device can be used as the stationary type. On the other hand, in the case where the flat display device is to be hung on a wall for use, the engaging portion
230
is housed in the concave portion
2301
and a stopper
2304
is slid to fix the engaging portion
230
as shown in FIG.
33
. As shown in
FIG. 31
, the notch portion
230
b
of the engaging portion
230
in the above-mentioned state is engaged with the wall hook
2401
. Thus, the display unit
201
is installed on the wall surface
204
.
According to the structure in accordance with the second background art, however, the above-mentioned link mechanism and a slide mechanism should be provided in the concave portion
2301
on the rear face of the display unit
201
. Therefore, a complicated structure having a high dimensional precision is required for the display unit
201
itself. Furthermore, there is also a problem in that a material cost and a manufacturing cost are increased due to such a complicated structure.
As shown in
FIG. 31
, moreover, the display unit
201
is simply hung on the wall hook. Therefore, there is a possibility that the display unit
201
might slip down.
Third Background Art and Problem Thereof
FIGS. 34 and 35
are side views typically showing a structure of a flat display device according to a third background art (prior art) disclosed in Japanese Laid-Open Patent Publication No. Hei 9-179504.
In the third background art, there has been proposed a structure in which a ceiling suspending fixture
3501
is fixed to a ceiling
306
in the vicinity of a side wall surface
304
, one of ends of a suspending wire
3502
having an optional length is connected to the ceiling suspending fixture
3501
and the other end of the suspending wire
3502
is connected to an attachment
350
fixed to a top face of a display unit
301
such as a plasma display device, thereby fixedly suspending the display unit
301
from the ceiling
306
as shown in FIG.
34
.
Moreover, the third background art has disclosed a structure in which an eyebolt
340
provided on the top face of the display unit
301
is hung on and engaged with a wall hook
3401
fixed to the side wall surface
304
, thereby causing the display unit
301
to face the side wall surface
304
each other with the display unit
301
suspended as shown in FIG.
35
.
According to the third background art, however, the display unit
301
is supported in only an upper portion thereof with all the above-mentioned structures. Therefore, the display unit
301
is not directly fixed to the side wall surface
304
and is therefore unstable. For this reason, a flat display device having such a structure has a problem in that the display unit
301
collides with the side wall surface
304
or the support of the suspending wire
3502
easily slips down when an oscillation is applied to the display unit
301
to generate a swing.
According to the structure in accordance with the third background art, moreover, the ceiling suspending fixture
3501
, the wire
3502
and the attachment
350
or the wall hook
3401
and the eyebolt
340
are not hidden behind the flat display device or the like but are exposed. Therefore, the shape and dimension of the whole flat display device is correspondingly increased. In addition, there is also a problem in that an installation space is increased.
Fourth Background Art and Problem Thereof
FIGS. 36
to
38
are perspective views schematically showing a structure of a flat display device according to a fourth background (prior art) art disclosed in Japanese Laid-Open Patent Publication No. Hei 9-288456.
First of all, the flat display device having
Ishibashi Kan'ichirou
Matsumura Seiji
Matsuo Youichi
Takehara Tadami
Lea-Edmonds Lisa
Mitsubishi Denki & Kabushiki Kaisha
Schuberg Darren
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