BACKGROUND OF THE INVENTION
[0001] The present invention relates to a package structure for a thin display apparatus
and a method of packing a thin display apparatus.
[0002] There are known package structures for use in shipping thin display panels such as
liquid crystal panels and organic EL panels, and also thin display apparatuses equipped
with such a thin display panel. Examples of known package structures are a common
package structure with buffer members provided at four corners of an article to be
packed for supporting the article and an improved package structure for a thin display
apparatus disclosed in Japanese Un-Examined Patent Application Publication No.
2006 - 232360 (referred to as Document 1, hereinafter).
[0003] Document 1 discloses a package structure for use in packing a liquid crystal television
in a corrugated cardboard box with holding members to be in contact with both ends
of the television at the bottom and top sides thereof. The package structure features
a reinforced plate that is turned around the television in the vertical direction
to wrap the television, with a sponge plate attached to the reinforced plate to precompress
the center region of a display panel in the lateral direction.
[0004] According to the package structure in Document 1, the sponge plate minimizes jolts
of the center region of the display panel that are generated by shocks, vibration,
etc., applied to the television while being shipped. Thus, a thin display apparatus,
such as a liquid crystal television, can withstand shocks, vibration, etc., generated
during shipping even if a display panel is relatively large.
[0005] However, there is a strong demand for lighter-weight and thinner display panels and
apparatuses with a larger screen, for a variety of installation types such as hung
on wall and ceiling.
[0006] Light weight display panels and apparatuses are achieved with light metals such as
aluminum, in place of metals such as iron, for display panel frames that support a
thin display panel and cabinets in which a thin display panel is installed. Such a
light metal offers a light weight of around 6 kg which used to be 10 kg or so for
thin display panels and apparatuses.
[0007] Such light weight display panels and apparatuses, however, have a tendency of low
stiffness compared to heavy display panels and apparatuses of the same screen size.
[0008] Thin liquid crystal display panels are achieved with a thin cell panel, optical sheet,
diffusion plate, and other thin components with a small distance between these components.
The thinness of 10 mm or less has been achieved for the thinnest part of display panels,
which used to be 30 mm or more.
[0009] Such light-weight and thin display panels and apparatuses, however, suffer several
problems when packed in a corrugated cardboard box and shipped.
[0010] A first problem is that a cell panel is damaged at the rear side due to rubbing or
hitting each other between the cell panel and an optical sheet provided behind the
panel when vibration is externally applied.
[0011] This problem is caused by a thinner structure with a smaller distance between the
cell panel and the optical sheet, in addition to that a thinner cell panel is more
vibrated at the center region in back and forth when an external force is applied.
[0012] A second problem is that a package box is also made thinner. Thus, when the package
box falls down a packed cell panel or display apparatus could suffer flexure deformation
as protruding in the direction of falling down, at the center region of the top section
of the cell panel or display apparatus.
[0013] FIG. 1 illustrates the second problem. An article 101 to be packed is a thin display
panel, for example. Attached to the four corners of the article 101 are buffer members
102. The article, or the thin display panel 101 is packed in a package box 103 (indicated
by a dash-dot line for brevity) with the buffer members 102.
[0014] Shown in (a) of FIG. 1 is that the package box 103 is placed upright on a floor,
etc. Shown in (b) of FIG. 1 is that the package box 103 falls down in a direction
indicated by an arrow.
[0015] When the package box 103 falls down in the direction indicated by the arrow, a flexurally-deformed
portion K is created at the center region of the top side as protruding in the direction
of falling down due to the shock of falling down, as shown in (b) of FIG. 1.
[0016] This problem is caused by that, although the display panel 101 is supported by the
buffer members 102 at the four corners, the center region between the opposing corners
is not protected by the buffer members 102. The center region of the top side of the
display panel 101 thus cannot withstand the shock of falling down, in addition to
lower stiffness of the panel 101 that is made larger and thinner.
[0017] The first problem may be solved by the package structure disclosed in Document 1,
with the sponge plate that precompress the center region of a display panel in the
lateral direction to minimize vibration in back and forth.
[0018] Nevertheless, since the sponge plate is not provided at the center region of the
top side of the display panel in Document 1, the second problem may not be solved
by the package structure disclosed in Document 1.
[0019] Moreover, the package structure disclosed in Document 1 should be improved in the
following points concerning a packing operation.
[0020] One point to be improved lies in the reinforced plate when an article to be packed
is a thin display panel or apparatus of 10 mm or less in thickness. In detail, it
seems that, if the reinforced plate is weakly turned around such a thin article, it
cannot minimize vibration whereas, if it is strongly turned around, the sponge plate
precompresses the display panel too much, which results in adverse effects to the
thin display panel or apparatus with lowered stiffness.
[0021] Another point to be improved is that it takes time to turn the reinforced plate around
an article to be packed and connect both ends of the reinforced plate, with several
steps.
[0022] Still another point to be improved is that, when an article to be packed is mistakenly
packed in a package box without the reinforced plate, the article has to be picked
up from the package box for turning the reinforced plate around the article and then
again packed in the package box, which leads to lower efficiency in packing operations.
SUMMARY OF THE INVENTION
[0023] A purpose of the present invention is to provide a package structure for a thin display
apparatus and a method of packing a thin display apparatus, that offer easier packing
operations and protect the packed display apparatus from being deformed when a package
box falls down.
[0024] The present invention provides a package structure for packing a thin display apparatus
having a display screen comprising: a reinforced plate to be attached to the display
apparatus when the display apparatus is packed, the reinforced plate having an first
end portion, a second end portion and a middle portion, the first end portion being
positioned at a front side of the display apparatus, the second end portion being
positioned at a rear side of the display apparatus and the middle portion being positioned
at a top side of the display apparatus when the reinforced plate is attached to the
display apparatus; a cushion member to be attached to a top portion of the display
apparatus when the display apparatus is packed, the top portion being positioned at
the top side; and a buffer member fixed to the first end portion of the reinforced
plate, wherein, when the display apparatus is packed, the cushion member supports
the top portion of the display apparatus from a front direction at the front side
and from a rear direction at the rear side through the reinforced plate with the buffer
member being in contact with the display screen or being positioned in the vicinity
of the display screen at the front side.
[0025] Moreover, the present invention provides a method of packing a thin display apparatus
having a display screen comprising the steps of: a first step of attaching a reinforced
plate to the display apparatus, the reinforced plate having a first end portion, a
second end portion, a middle bent portion and a buffer member that is fixed to the
first end portion, the first and second end portions facing each other with the middle
bent portion located between and connected to the first and second end portions, the
reinforced plate being attached to the display apparatus so that the middle bent portion
is set on a top portion of the display apparatus at a top side thereof, the buffer
member is positioned at a front side of the display apparatus as facing the display
screen and the second end portion is positioned at a rear side of the display apparatus;
and a second step of attaching a cushion member to the reinforced plate so that the
cushion member is set on the middle bent portion set, in the first step, on the top
portion of the display apparatus.
BRIEF DESCRIPTION OF DRAWINGS
[0026]
FIG. 1 shows a view illustrating a problem of a known package structure;
FIG. 2 shows orthographic views of an exemplary article to be packed by a packing
method according to an embodiment of the present invention;
FIG. 3 shows a first view illustrating the packing method according to the embodiment
of the present invention;
FIG. 4 shows a second view illustrating the packing method according to the embodiment
of the present invention;
FIG. 5 shows a third view illustrating the packing method according to the embodiment
of the present invention;
FIG. 6 shows a development view of a main component of a package structure according
to an embodiment of the present invention;
FIG. 7 shows a view of a folded state of the main component of the package structure
according to the embodiment of the present invention, before used in the packing method
according to the embodiment of the present invention;
FIG. 8 shows a transverse sectional view illustrating the package structure according
to the embodiment of the present invention;
FIG. 9 shows a vertical sectional view illustrating the package structure according
to the embodiment of the present invention;
FIG. 10 shows a partially enlarged view of FIG. 9;
FIG. 11 shows an enlarged view of an area DT shown in FIG. 10;
FIG. 12 shows a schematic view illustrating the dimension of the components of the
package structure according to the embodiment of the present invention; and
FIG. 13 shows a perspective view of a modification to the package structure according
to the embodiment of the present invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0027] Preferred embodiments of the present invention will be described with respect to
FIGS. 2 to 13.
[0028] FIG. 2 shows orthographic views of an exemplary article to be packed by a packing
method of the present invention. The exemplary article shown in FIG. 2 is a thin display
apparatus 50, for example, a liquid crystal monitor. The signs "top", "bottom", "front",
"rear", "left" and "right" are given to the drawings when necessary to indicate the
direction with respect to the thin display apparatus 50.
[0029] The thin display apparatus 50 includes a thin liquid crystal display panel 1 and
a cabinet 2 for the display panel 1 to be installed, having an opening 2a through
which a display screen 1a provided on a cell panel 1s of the display panel 1 is exposed.
The cabinet 2 has a protruding portion 3 for installing a circuit board, etc., at
the rear side.
[0030] The thin display apparatus 50 is a 32-inch liquid crystal monitor having 773 mm in
width W, 496 mm in height H, 7 mm in thickness T1 (except for the protruding portion
3), and 23 mm in thickness T2 for the protruding portion 3.
[0031] The thin display apparatus 50 (the liquid crystal monitor) has a mass of 5. 7 Kg
with the cabinet 2 made of aluminum (including the protruding portion 3).
[0032] FIGS. 3 to 5 show perspective views illustrating how to pack the thin display apparatus
50 in a package box, according to a packing method of the present invention.
[0033] Firstly, the thin display apparatus 50 is wrapped with a polyethylene film package
(not shown).
[0034] Next, as shown in FIG. 3, corner cushions 4a, 4b, 4c and 4d are attached to the four
corners of the cabinet 2, as buffer members, so that the corner cushions 4a and 4b,
and 4c and 4d support the cabinet 2 at the bottom and top sides, respectively.
[0035] The polyethylene film package will not be referred to in the following description
because it is much thinner than the other components and does not contribute to the
advantages obtained by the present invention.
[0036] The corner cushions 4a, 4b, 4c and 4d are provided with slits 4a1, 4b1, 4c1 and 4d1,
respectively, having a specific shape and width so that the four corners of the cabinet
2 can be tightly inserted into the slits. Shown in FIG. 3 are the slits 4a1, 4b1,
and 4c1. The corner cushions 4a, 4b, 4c and 4d are made of styrene form.
[0037] Next, as shown in FIG. 4, a reinforced plate 5 bent into an almost J-shape is installed
between the corner cushions 4c and 4d from the top side in a direction D3 so that
cabinet 2 is fit between the opposing inner surfaces of the J-shaped reinforced plate
5.
[0038] The reinforced plate 5 is made of a corrugated cardboard, for example. When a corrugated
cardboard is used, as shown in FIG. 6, a corrugated cardboard material is cut into
a rectangular shape. Crease lines 5a, 5b and 5c are then made between one end portion
5t1 and another end portion 5t2 of the rectangular corrugated cardboard so that a
valley fold is formed in a direction of the front side of a drawing paper of FIG.
6. The crease lines 5a, 5b and 5c are preferably made in a direction orthogonal to
the direction of the flute.
[0039] Any flute type of corrugated cardboard can be used in the embodiment. Moreover, perforation
may be made instead of the crease lines 5a, 5b and 5c.
[0040] When the direction of the flute is set as indicated by an arrow in FIG. 6, a buffer
plate 6 is fixed at the end portion 5t1 (in the direction of the flute) of the reinforced
plate 5 (the upper side in FIG. 6).
[0041] The buffer plate 6 is made of EPS (Expanded Polystyene), a type of styrene foam,
sponge material, etc., and formed into a cuboid. The buffer plate 6 is fixed on the
reinforced plate 5 by a fixing means, such as glue or an adhesive tape. The reinforced
plate 5 has a width W2 for an inner surface 5e that is the inner side when used, equal
to or a little bit smaller than a width W3 shown in FIG. 3.
[0042] FIG. 7 shows the reinforced plate 5 folded along the crease lines 5a, 5b and 5c when
used in packing.
[0043] As shown in FIG. 7, the reinforced plate 5 is folded along the crease lines 5a and
5b at almost right angle whereas folded slightly along the crease line 5c. Accordingly,
the reinforced plate 5 is formed into an almost J-shape in cross section, having a
bent portion kk.
[0044] The term "an almost J-shape" in this description includes not only a letter "J"-shape
but also a Π-shape with the end portion 5t2 located lower than that shown in FIG.
7.
[0045] The positions of the crease lines 5a and 5b of the reinforced plate 5 when folded
are defined as follows:
A distance Dm1 shown in FIG. 7 is almost equal to H/2 shown in FIG. 2 in which the
reference sign H indicates the height of the thin display apparatus 50. The distance
Dm1 is, as shown in FIG. 7, a distance between the position of the inner surface 5e
between the crease lines 5a and 5b in a top-to-bottom direction and the center position
of the buffer member 6 in the top-to-bottom direction.
A width T3 of the inner surface 5e in a lateral direction (orthogonal to the top-to-bottom
direction) shown in FIG. 7 is equal to or little bit larger than thickness T1 of the
thin display apparatus 50 (except for the protruding portion 3) shown in FIG. 2.
[0046] The position of the crease line 5c will be discussed later.
[0047] In addition to the inner surface 5e, the reinforced plate 5 has an inner surface
5d between the crease line 5a and the end portion 5t2, an inner surface 5f between
the crease lines 5b and 5c, and an inner surface 5g between the crease line 5c and
the end portion 5t1, as shown in FIGS. 6 and 7. It is noted that the positions of
the end portions 5t1 and 5t2 are upside down in FIGS. 6 and 7.
[0048] Referring again to FIG. 4, concerning the packing method of the present invention,
the reinforced plate 5 formed into a specific shape shown in FIG. 7 is installed in
the direction D3 in such a manner that the buffer plate 6 is in contact with the display
screen 1a (FIG. 2) and the top side of the thin display apparatus 50 is inserted between
the inner surfaces 5d and 5f.
[0049] Next, as shown in FIG. 5, a cushion 7 (which will be described later in detail) is
installed between the corner cushions 4a and 4d in a direction D4 from the top side.
[0050] Then, the thin display apparatus 50 is packed in a package box 8, with the corner
cushions 4a to 4d, the reinforced plate 5 and the cushion 7 attached thereto. The
package box 8 is then closed by folding flaps 8f, thus completing a packing operation.
[0051] The cushion 7 is described in detail.
[0052] The cushion 7 is made of a buffer material such as styrene form. The cushion 7 supports
the center region of the thin display apparatus 50 at the top side with the reinforced
plate 5, which will be described with reference to FIGS. 8 to 12.
[0053] FIG. 8 is a sectional view taken on line S2A - S2A of FIG. 5. FIG. 9 is a sectional
view taken on line S2B - S2B of FIG. 5. FIG. 10 is a partially enlarged view of FIG.
9 at the top side. FIG. 11 is an enlarged view of an area DT shown in FIG. 10. FIG.
12 is a schematic view illustrating the dimension of the components.
[0054] As shown in FIG. 8, the cushion 7 has a width W4 in the lateral direction, equal
to or little bit smaller than a width W3 that is a gap between the corner cushions
4c and 4d. The width adjustment allows that the three cushions 4c, 7 and 4d are tightly
aligned in the lateral direction at the top side of the thin display apparatus 50.
[0055] The cushion 7 is provided with a slit 7a at the center region in cross section, as
shown in FIGS. 9 and 10. The slit 7a is formed by an inner surface 7a1 at the front
side and an opposing inner surface 7a2 at the rear side. The inner surfaces 7a1 and
7a2 are slopes to shape the slit 7a open wide gradually in the bottom direction in
FIG. 9. The inner surface 7a2 at the rear side is provided with several ribs 7a3 aligned
in the lateral direction, each having an end surface almost orthogonal to the top-to-bottom
direction, as shown in FIG. 8.
[0056] The slit 7a has a width T5 at the bottom thereof as shown in FIG. 10, which corresponds
to the width obtained by adding the width T1 (FIG. 2) of the thin display apparatus
50 and a width twice that of the reinforced plate 5. The cushion 7 thus can be attached
to the thin display apparatus 50 tightly in a front-to-rear direction of the apparatus
50 in a manner that the top side of the apparatus 50 is inserted into the slit 7a
with the reinforced plate 5 between the cushion 7 and the apparatus 50.
[0057] Moreover, the cushion 7 has a specific outer width in the front-to-rear direction
of the thin display apparatus 50, that is equal to or little bit smaller than an inner
width of the package box 8 in the front-to-rear direction. The width adjustment allows
that the cushion 7 is tightly installed in the package box 8 in the front-to-rear
direction. The same goes for the corner cushions 4a to 4d.
[0058] Accordingly, the thin display apparatus 50 is packed in the package box 8 tightly
in the front-to-rear and lateral directions, with the corner cushions 4a to 4d, the
reinforced plate 5 and the cushion 7.
[0059] As shown in FIG. 10, the slit 7a of the cushion 7 is formed with a tilt angle θ7
of, for example, about 4 degrees for the slope of the inner surface 7a1 with respect
to the vertical line that goes through the cushion 7 in a direction orthogonal to
the front-to-rear direction of the thin display apparatus 50.
[0060] The tilt angle θ7 is decided in accordance with the relationship between a distance
Dm2 in the top-to-bottom direction and a width T4 of the buffer plate 6 in the front-to-rear
direction, in FIG. 7. The distance Dm2 is defined as a distance between the crease
lines 5c and the inner surface 5e between the crease lines 5a and 5b.
[0061] The tilt angle θ7 is discussed in detail. In FIG. 11, an enlarged view of the area
DT in FIG. 10, the display screen 1a is positioned far back (in the right direction
in FIG. 11) by Δd from the front side 2b of the cabinet 2.
[0062] It is preferable that the buffer member 6 is in almost surface contact with the display
screen 1a or they face with each other with an extremely small gap when the thin display
apparatus 50 is packed in the package box 8.
[0063] In order to satisfy the positional relationship between the buffer member 6 and the
display screen 1a, the following expression (1) is given when the buffer member 6
has a thickness T4, according to FIG. 12: tanθ7 = (T4 - Δd) / Dm2 ... (1)
wherein T4 = 10 mm, Δd = 1. 5 mm, and Dm2 = 120 mm, in this embodiment.
[0064] Under the requirements discussed above, an outer surface 5fr (FIG. 7), the opposite
surface of the inner surface 5f of the reinforced plate 5, is in almost surface contact
with the front-side inner surface 7a1 (FIG. 10) of the slit 7 of the cushion 7 when
the thin display apparatus 50 is packed in the package box 8.
[0065] Referring to FIG. 8 again, the ribs 7a3 are provided in order for the inner surface
5d (FIG. 7) of the reinforced plate 5 to be in surface contact with the rear surface
of the cabinet 2. The ribs 7a3 are aligned at a specific interval in the lateral direction
in FIG. 8, with a specific width and height.
[0066] The ribs 7a3 provided as described above are deformed when an external force is applied
from the front to rear of the thin display apparatus 50 or the package box 8 falls
down in the rear direction, in FIG. 5, after the thin display apparatus 50 has been
packed in the package box 8. The deformed ribs 7a3 effectively absorb the kinetic
energy of the thin display apparatus 50 in accordance with the motion of the display
apparatus 50 in the rear direction, thus exhibiting preferable buffer effects.
[0067] According to the packing method and package structure of the embodiment described
above, the thin display apparatus 50, an article to be packed, is tightly supported
by the corner cushions 4a to 4d at the four corners at the top and bottom sides and
also the cushion 7 interposed between the corner cushions 4c and 4d at the top side,
in the package box 8.
[0068] The thin display apparatus 50, an article to be packed, is therefore protected from
being deformed at the top side even if the display apparatus 50 falls down in the
front or rear side because it is supported by the corner cushions 4c and 4d, and also
the cushion 7 at the top side.
[0069] Moreover, when the thin display apparatus 50 is packed in the package box 8, with
the reinforced plate 5, the corner cushions 4c and 4d, and the cushion 7, the buffer
plate 6 is put in almost surface contact with an specific area of the display screen
1a including the center region thereof or put in a position to face the specific area
with a very small gap. The reinforced plate 5 having the buffer plate 6 is restricted
from being deformed in the front direction by the cushion 7 at the inner surface 7a1
thereof at the front side. Therefore, when the cell panel 1s (FIGS.2 and 11) of the
thin liquid crystal display panel 1 is vibrated in the front-to-rear direction, the
vibration is diminished by the buffer plate 6 installed as described above.
[0070] Furthermore, the crease lines 5a, 5b and 5c made in the direction orthogonal to the
direction of the flute, as shown in FIG. 6, give higher stiffness to the reinforced
plate 5 having the buffer plate 6 against the deformation in the front-to-rear direction,
which further restricts the cell panel 1s from being vibrated.
[0071] When the reinforced plate 5 is made of a corrugated cardboard, the type of flute,
the material type of corrugated cardboard core, etc., and the direction of flute can
be appropriately selected so that the cell panel 1s can be effectively restricted
from vibration.
[0072] With the reinforced plate 5 described above, the cell panel 1s is protected from
being damaged, especially, at the back thereof because of no contact (rubbing, hitting,
etc.) with an optical panel (not shown) provided just behind the cell panel 1s.
[0073] Moreover, the reinforced plate 5 can be attached to an article to be packed, such
as the thin display apparatus 50, after the article is packed in the package box 8,
thus an easier and more efficient packing operation is achieved.
[0074] Furthermore, even if the reinforced plate 5 has to be replaced with a new one after
packed due to defectiveness after packed, it can be replaced with no need to pick
up a packed article, such as the thin display apparatus 50 from the package box 8,
thus higher packing operability is achieved.
[0075] It is further understood by those skilled in the art that the foregoing description
is a preferred embodiment of the described structure and method and that various changes
and modifications may be made in the invention without departing from the sprit and
scope thereof.
[0076] For example, the reinforced plate 5 may be made of other materials than a corrugated
cardboard, such as resin, like polypropylene (PP).
[0077] An article to be packed may be the thin liquid crystal display panel 1 without being
installed in the thin display apparatus 50, or other thin plate-like materials such
as glass and resin.
[0078] Regarding the buffer plate 6 to be put in contact with the display screen 1a on the
cell panel 1s of the display panel 1, its position of contact, area and shape are
not limited to those described above. Nevertheless, it is preferable that the buffer
plate 6 covers the center region of the display screen 1a, the center region being
to be vibrated most when the package box 8 falls down.
[0079] Shown in FIG. 13 is a modification to the package structure described above, with
a cushion 71 having an integral structure of the corner cushions 4c and 4d, and the
cushion 7.
[0080] Also in this modification, the thin display apparatus 50 (an article to be packed)
is tightly supported by the cushion 71 at the top side from left to right corners.
[0081] The cushion 71 has a larger exterior dimension than each of the separate corner cushions
4c and 4d, and cushion 7. However, the use of the cushion 71 reduces the cushion installation
steps of 1 /3 fewer than those separated cushions.
[0082] Also in this modification, a packed article is protected from being damaged at the
top side when a package box falls down in front or rear because it is supported or
protected at the top side.
[0083] As described in detail, the present invention achieves that a packed article, such
as a thin liquid crystal display panel and a thin display apparatus and so on, is
packed in a package box by an easier operation and is protected from being deformed
even if a package box falls down.
1. A package structure for packing a thin display apparatus having a display screen comprising:
a reinforced plate to be attached to the display apparatus when the display apparatus
is packed, the reinforced plate having an first end portion, a second end portion
and a middle portion, the first end portion being positioned at a front side of the
display apparatus, the second end portion being positioned at a rear side of the display
apparatus and the middle portion being positioned at a top side of the display apparatus
when the reinforced plate is attached to the display apparatus;
a cushion member to be attached to a top portion of the display apparatus when the
display apparatus is packed, the top portion being positioned at the top side; and
a buffer member fixed to the first end portion of the reinforced plate,
wherein, when the display apparatus is packed, the cushion member supports the top
portion of the display apparatus from a front direction at the front side and from
a rear direction at the rear side through the reinforced plate with the buffer member
being in contact with the display screen or being positioned in the vicinity of the
display screen at the front side.
2. The package structure according to claim 1 further comprising a package box, a left
corner cushion and a right corner cushion, the left corner cushion and the right corner
cushion being to be attached to a left end portion and a right end portion, respectively,
of the display apparatus at the top side, wherein, when the display apparatus is packed
in the package box, a position of the cushion member in a left direction and a right
direction is determined by the left and right corner cushions, the left and right
directions being orthogonal to the front and rear directions.
3. The package structure according to claim 1, wherein, when the display apparatus is
packed, the cushion member supports the display apparatus from a left end portion
to a right end portion of the display apparatus at the top side, the left and right
portions being included in the top portion of the display apparatus.
4. The package structure according to claim 1, wherein the buffer member is contact with
a specific area of the display screen or positioned in the vicinity of the specific
area at the front side, the specific area including a center of the display screen.
5. The package structure according to claim 1, wherein the middle portion of the reinforced
plate is a bent middle portion so that the first and second end portions face each
other with the bent middle portion located between and connected to the first and
second end portions, for the top portion of the display apparatus to be fit in the
bent middle portion when the display apparatus is packed.
6. The package structure according to claim 5, wherein the bent middle portion of the
reinforced plate has a first crease at which the bent middle portion is connected
to the first end portion and a second crease at which the bent middle portion is connected
to the second end portion, each crease having a specific angle so that the top portion
of the display apparatus is fit in the bent middle portion.
7. The package structure according to claim 6, wherein the reinforced plate has an inner
surface connected to the first end portion to which the buffer member is fixed, the
inner surface having a third crease at which the inner surface is bent at an angle
smaller than the specific angle in the rear direction and connected to the middle
portion, the buffer member being interposed between the first end portion and the
third crease.
8. The package structure according to claim 7, wherein the cushion member has a slit
into which the bent middle portion of the reinforced plate is inserted when the cushion
member supports the top portion of the display apparatus through the reinforced plate.
9. The package structure according to claim 8 further comprising a cabinet having the
display screen installed therein, wherein the slit of the cushion member has inner
surfaces facing each other and having slopes to form the slit, each slope having an
angle θ with respect to a vertical line that goes through the cushion member in a
direction orthogonal to the front and rear directions, the angle θ being defined as
tanθ = (T
- Δd) / Dm in which T is a thickness of the buffer member in the front and rear directions,
Δd is a distance between the display screen and a front side of the cabinet in the
front and rear directions and Dm is a distance between the third crease and an inner
surface of the bent middle portion between the first and second creases of the reinforced
plate.
10. A method of packing a thin display apparatus having a display screen comprising the
steps of:
a first step of attaching a reinforced plate to the display apparatus, the reinforced
plate having a first end portion, a second end portion, a middle bent portion and
a buffer member that is fixed to the first end portion, the first and second end portions
facing each other with the middle bent portion located between and connected to the
first and second end portions, the reinforced plate being attached to the display
apparatus so that the middle bent portion is set on a top portion of the display apparatus
at a top side thereof, the buffer member is positioned at a front side of the display
apparatus as facing the display screen and the second end portion is positioned at
a rear side of the display apparatus; and
a second step of attaching a cushion member to the reinforced plate so that the cushion
member is set on the middle bent portion set, in the first step, on the top portion
of the display apparatus.
11. The method according to claim 10 further comprising the steps of:
a third step of packing the display apparatus in a package box;
and
a fourth step of attaching a left corner cushion and a right corner cushion to a left
end portion and a right end portion, respectively, of the display apparatus at the
top side so that a position of the cushion member in a left direction and a right
direction on the display screen is determined by the left and right corner cushions
in the package box.
12. The method according to claim 10, wherein the second step includes the step of supporting
the display apparatus with the cushion member from a left end portion to a right end
portion of the display apparatus, the left and right portions being included in the
top portion of the display apparatus.
13. The method according to claim 10, wherein the first step includes the step of setting
the buffer member at the front side so that buffer member is contact with a specific
area of the display screen or positioned in the vicinity of the specific area at the
front side, the specific area including a center of the display screen.
14. A method according to claim 10 further comprising the steps of:
a third step of bending the reinforced plate at a first crease and a second crease
each at a specific angle to form the middle bent portion so that the first and second
end portions face each other with the middle bent portion located between and connected
to the first and second end portions; and
a fourth step of bending the reinforced plate at a third crease at an angle smaller
than the specific angle in the rear direction, the third crease being located at an
inner surface of the reinforced plate, the inner surface being connected to the first
end portion to which the buffer member is fixed, the buffer member being interposed
between the first end portion and the third crease.