A cover sheet for a display device and packaging for a display device using the cover sheet.
The cover sheet for display devices features a re-peelable adhesive surface for easy attachment and detachment, addressing the challenges of residue and cumbersome removal in existing technologies, ensuring a residue-free and secure fit.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- ALPS ALPINE CO LTD
- Filing Date
- 2024-12-19
- Publication Date
- 2026-07-01
Smart Images

Figure 2026109044000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a cover sheet for a display device that can be easily attached to and removed from the display device, and a package of a display device using the cover sheet.
Background Art
[0002] Patent Document 1 describes a protective cover material used for a display. The protective cover material shown in FIG. 1 is attached so as to cover the entire surface of the display portion of the display module, and a bent portion bent from a part of the protective cover material is installed so as to cover the upper and lower surfaces of the bezel. The protective cover material shown in FIG. 3 is attached so as to cover the entire surface of the display portion of the display module, and a part of the protective cover material is bent so as to cover the lower surface of the bezel and further wrap around the back side of the display module to form a bent portion. In any of the embodiments, the protective cover material is fixed to the surface of the display module using an adhesive tape.
[0003] Patent Document 2 describes a cover film for covering a display device. This cover film has a front attachment portion and protruding portions that protrude outward from the upper, lower, left, and right edges of the front attachment portion. The cover film is attached such that the front attachment portion is attached to the outer peripheral portion of the display, and each protruding portion is bent so as to wrap around to the backside chassis side, and the protruding portion is attached to the outer surface of the protective member and the rear surface of the base surface portion.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Patent Document 2
Summary of the Invention
Problems to be Solved by the Invention
[0005] The protective cover material described in Patent Document 1 is attached to the surface of the display module with adhesive tape, making the installation and removal of the protective cover material cumbersome. Furthermore, in order to securely attach the protective cover material to the display module, the adhesive strength of the adhesive tape needs to be set to be strong. However, if the adhesive strength is too strong, the process of removing the adhesive tape becomes troublesome, and problems often arise where some of the adhesive cannot be completely removed, leaving residue on the surface of the display module.
[0006] In the cover film described in Patent Document 2, the front adhesive portion is attached to the outer periphery of the display, and the protruding portion is attached to the sides and back of the display. For the cover film to not detach, the front adhesive portion and the protruding portion must exhibit strong adhesive force. Similar to the problems related to the invention described in Patent Document 1, it becomes difficult to peel the cover film from the display, and some of the adhesive is likely to remain on the display.
[0007] The present invention aims to solve the above-mentioned conventional problems and to provide a cover sheet for a display device and packaging for a display device using the cover sheet, which are easy to attach to and detach from the display device and do not leave any adhesive residue on the surface of the case. [Means for solving the problem]
[0008] The present invention relates to a cover sheet for a display device having a case containing a display cell and a transparent panel covering a display screen facing forward of the case, The front sheet portion covering the front surface of the transparent panel, the rear sheet portion covering the rear surface of the case, and the connecting piece extending from the rear sheet portion or the front sheet portion are integrally formed. The front sheet portion has a joining inner surface and an outer surface, the rear sheet portion has an opposing inner surface and an outer surface, and the connecting piece has a joining inner surface and an outer surface, and the respective joining inner surface and the opposing inner surface are the same sheet surface. At least the inner surface of the joint of the front sheet portion and the inner surface of the joint of the connecting piece are made of a re-peelable adhesive surface. The joining inner surface of the front sheet portion is adhesive to the front surface of the transparent panel, and the joining inner surface of the connecting piece is adhesive to the outer surface of the front sheet portion or the outer surface of the rear sheet portion.
[0009] In the present invention, it is preferable that the entire surface of the cover sheet for the display device, including the bonding inner surface and the opposing inner surface, is a re-peelable adhesive surface.
[0010] In the present invention, the cover sheet for the display device may have a non-adhesive surface on the opposing inner surface of the rear sheet.
[0011] For example, the entire surface of the sheet, including the bonding inner surface and the opposing inner surface, can be configured as a re-peelable adhesive surface, and a release sheet can be provided on the opposing inner surface.
[0012] The cover sheet for the display device of the present invention preferably has a PET base film.
[0013] Furthermore, the present invention relates to a display device having a case containing a display cell, a transparent panel covering a display screen facing forward of the case, and a packaging for the display device having a cover sheet covering the display device, The cover sheet is integrally formed with a front sheet portion that covers the front surface of the transparent panel, a rear sheet portion that covers the rear surface of the case, and a connecting piece extending from the rear sheet portion or the front sheet portion. The front sheet portion has a joining inner surface and an outer surface, the rear sheet portion has an opposing inner surface and an outer surface, and the connecting piece has a joining inner surface and an outer surface, and the respective joining inner surface and the opposing inner surface are the same sheet surface. At least the inner surface of the joint of the front sheet portion and the inner surface of the joint of the connecting piece are made of a re-peelable adhesive surface. The inner surface of the front sheet portion is adhesively bonded to the front surface of the transparent panel. The connecting piece extending from the rear sheet portion extends forward of the display device, and the joining inner surface of the connecting piece is adhesively bonded to the outer surface of the front sheet portion, or the connecting piece extending from the front sheet portion extends rearward of the display device, and the joining inner surface of the connecting piece is adhesively bonded to the outer surface of the rear sheet portion.
[0014] The packaging for the display device of the present invention is such that the cover sheet has a re-peelable adhesive surface over the entire surface of the sheet, including the bonding inner surface and the opposing inner surface. It is preferable that the rear surface of the case has a rougher surface than the front surface of the transparent panel, and that the opposing inner surface of the rear sheet does not adhere to the rear surface.
[0015] The packaging for the display device of the present invention may be such that the cover sheet has a re-peelable adhesive surface over the entire surface of the sheet, including the bonding inner surface and the opposing inner surface, and a release sheet is provided on the opposing inner surface.
[0016] In the packaging of the display device of the present invention, it is preferable that the cover sheet has a PET base film. [Effects of the Invention]
[0017] This invention allows for easy attachment of a cover sheet to a display device by simply adhering the adhesive inner surface of the front sheet portion to the front surface of the display device's transparent panel, and adhering the adhesive inner surface of the connecting piece to the outer surface of the front or rear sheet portion. Although the adhesive surface has weak adhesive strength, the front surface of the transparent panel has a surface roughness close to that of a mirror, so the adhesive inner surface of the front sheet portion can be reliably adhered by pressing it tightly against the front surface of the transparent panel. Furthermore, since the outer surfaces of the front or rear sheet portion are also smooth and have low surface roughness, the adhesive inner surface of the connecting piece can be pressed tightly against each outer surface for reliable adhesion. On the other hand, the adhesive inner surface of the connecting piece can be easily peeled off from the outer surface of the front or rear sheet portion, and the adhesive inner surface of the front sheet portion can also be easily peeled off from the front surface of the transparent panel, making it easy to remove the cover sheet.
[0018] By making the entire area of the sheet surface including the joint inner surface and the opposing inner surface a re-peel adhesive surface, there is no need to provide a partial re-peel adhesive surface, and the cover sheet can be easily configured. That is, the cover sheet can be formed by cutting a base film having a re-peel adhesive layer on the entire surface. The re-peel adhesive surface can be adhered by adhering it to a surface with a small surface roughness such as the front surface of a transparent panel, but it does not easily adhere to a surface with a large surface roughness such as the rear surface of a case. Therefore, even if the entire area of the sheet surface is a re-peel adhesive surface, it does not adhere to the surface of the case other than the transparent panel, or even if it adheres to the surface of the case, the bonding force becomes extremely weak, and when removing the cover sheet, the adhesive force to the surface of the case does not become a resistance. Also, no adhesive remains on the surface of the case. Furthermore, by leaving a release sheet on the opposing inner surface of the rear sheet portion, the opposing inner surface of the rear sheet portion can be made a non-adhesive surface.
Brief Description of the Drawings
[0019] [Figure 1] Perspective view showing the package of the display device according to the first embodiment of the present invention from the front, [Figure 2] Perspective view showing the package of the display device according to the first embodiment of the present invention from the rear, [Figure 3] In the package of the display device according to the first embodiment of the present invention, perspective view showing the separation of the display device and the cover sheet from the front, [Figure 4] In the package of the display device according to the first embodiment of the present invention, perspective view showing the separation of the display device and the cover sheet from the rear, [Figure 5] Developed front view showing the cover sheet used in the package of the display device according to the first embodiment of the present invention in a planar shape with the inner surface facing forward, [Figure 6] (A) is a partially enlarged cross-sectional view of the cover sheet shown in FIG. 5 cut along line A-A, and (B) is a partially enlarged cross-sectional view of the cover sheet shown in FIG. 5 cut along line B-B. [Figure 7]A modified cover sheet used in the packaging of a display device according to the first embodiment of the present invention is shown in a flat, unfolded front view with the inner surface facing forward. [Figure 8] Figure 7 shows a partially enlarged cross-sectional view obtained by cutting the cover sheet along line VIII-VIII. [Figure 9] A perspective view showing the packaging of a display device according to a second embodiment of the present invention, viewed from the front. [Figure 10] A perspective view showing the display device and cover sheet separated and viewed from the front in a packaging for a display device according to a second embodiment of the present invention. [Figure 11] A perspective view showing the packaging of the display device according to the third embodiment of the present invention, viewed from the rear. [Modes for carrying out the invention]
[0020] Figures 1 and 2 show the packaging 1 of the display device according to the first embodiment of the present invention, Figures 3 and 4 show the display device 10 and cover sheet 20 that constitute the packaging 1, and Figures 5 and 6 show the structure of the cover sheet 20. In each figure, the Y1-Y2 direction is the front-to-back direction, with Y1 being the front and Y2 being the rear. The X1-X2 direction is the lateral direction, with X1 being the left direction and X2 being the right direction. The Z1-Z2 direction is the up-and-down direction, with Z1 being the up direction and Z2 being the down direction.
[0021] The display device 10 shown in Figures 3 and 4 is for in-vehicle use. Alternatively, the display device 10 may be for home use, gaming, theater use, etc. The display device 10 has a case 11. The case 11 has a front surface 11a facing forward (Y1 direction) and a rear surface 11b facing backward (Y2 direction). The case 11 also has an upper side surface 11c facing upward (Z1 direction) and a lower side surface 11d facing downward (Z2 direction), and a left side surface 11e facing left (X1 direction) and a right side surface 11f facing right (X2 direction).
[0022] A display unit is housed inside the case 11. The display unit consists of a display cell and an electronic circuit unit for driving the display cell. The display cell is a liquid crystal display cell or an organic EL display cell, etc. As shown in Figure 3, a rectangular display window 12 is opened on the front surface 11a of the case 11, and the display screen of the display cell is visible inside the display window 12. The display screen is oriented forward (Y1 direction). A transparent panel 13 is installed on the front surface 11a of the case around the display window 12, and the display screen is covered by the transparent panel 13. The transparent panel 13 is made of a transparent glass plate or a transparent resin plate such as acrylic.
[0023] Case 11 is die-cast from a light metal material such as a magnesium alloy, and the rear surface 11b, upper surface 11c, lower surface 11d, left side surface 11e, and right side surface 11f are painted surfaces with a matte finish, such as a matte black painted surface. Since the front surface 13a facing forward of the transparent panel 13 is almost mirror-like, the surface roughness of the rear surface 11b, upper surface 11c, lower surface 11d, left side surface 11e, and right side surface 11f is sufficiently greater than that of the front surface 13a of the transparent panel 13.
[0024] In Figure 5, the cover sheet 20 is unfolded into a planar shape, with the inner surface facing the display device 10 when packaged facing forward. As shown in the cross-sectional view in Figure 6, the cover sheet 20 has one base film BF. A re-peelable adhesive layer AL is laminated on the inner surface of the base film BF, making the inner surface of the cover sheet 20 a re-peelable adhesive surface. The base film BF of the cover sheet 20 is made of a resin material with high bending rigidity so that its re-peelable adhesive surface on the inner surface does not easily adhere to uneven surfaces such as the rear surface 11b of the case 11, which is a matte painted surface. The base film BF constituting the cover sheet 20 preferably has a bending strength of 90 MPa or more, and more preferably 100 MPa or more, as measured by "ASTM:D790". Base film BF that satisfies this condition is PET, PMMA, PA66, etc. The sheet thickness dimension of the base film BF is preferably 0.03 mm or more and 0.1 mm or less. The base film BF of the cover sheet 20 in this embodiment is a PET film with a thickness of 0.05 mm.
[0025] As shown in Figures 3, 4, and 5, the cover sheet 20 has a front sheet portion 21, a rear sheet portion 22, and a vertical intermediate portion 23 located between the front sheet portion 21 and the rear sheet portion 22. In the vertical direction, the front sheet portion 21, the vertical intermediate portion 23, and the rear sheet portion 22 are continuous in that order. As shown in Figure 5, perforations 24 extending in the horizontal direction (X1-X2 direction) are formed at the boundary between the front sheet portion 21 and the vertical intermediate portion 23, and perforations 25 extending in the horizontal direction are formed at the boundary between the vertical intermediate portion 23 and the rear sheet portion 22.
[0026] As shown in Figure 5, a left-side connecting piece 26 extends from the rear seat section 22 to the left (X1 direction), and a right-side connecting piece 27 extends from the rear seat section 22 to the right (X2 direction). A lateral intermediate section 28 is provided between the left-side connecting piece 26 and the rear seat section 22, and a lateral intermediate section 29 is provided between the right-side connecting piece 27 and the rear seat section 22. To the left (X1 direction), the rear seat section 22, the lateral intermediate section 28, and the left-side connecting piece 26 are continuous in that order, and to the right (X2 direction), the rear seat section 22, the lateral intermediate section 29, and the right-side connecting piece 27 are continuous in that order. Perforations 31 extending in the vertical direction (Z1-Z2 direction) are formed at the boundary between the left-side connecting piece 26 and the lateral intermediate section 28, and perforations 32 extending in the vertical direction are formed at the boundary between the lateral intermediate section 28 and the rear seat section 22. Similarly, a perforation 31 is formed between the right-side connecting piece 27 and the lateral intermediate section 29, and a perforation 32 is formed at the boundary between the lateral intermediate section 29 and the rear seat section 22. A tab 33 protruding to the left from the left-side connecting piece 26 and a tab 34 protruding to the right from the right-side connecting piece 27 are integrally formed.
[0027] Of the inner surfaces of the cover sheet 20 shown in Figure 5, the inner surface of the front sheet portion 21 is the joining inner surface 21a, the inner surface of the left connecting piece 26 is the joining inner surface 26a, and the inner surface of the right connecting piece 27 is the joining inner surface 27a. The inner surface of the rear sheet portion 22 is the opposing inner surface 22a. The inner surface of the vertical intermediate portion 23 is the intermediate inner surface 23a, the inner surface of the horizontal intermediate portion 28 is the intermediate inner surface 28a, and the inner surface of the horizontal intermediate portion 29 is the intermediate inner surface 29a. The joining inner surfaces 21a, 26a, 27a, the opposing inner surfaces 22a, and the intermediate inner surfaces 23a, 28a, 29a are the same sheet surface of the cover sheet 20 (base film BF).
[0028] On the joint inner surfaces 21a, 26a, 27a of the cover sheet 20, the opposing inner surface 22a, the intermediate inner surfaces 23a, 28a, 29a, and the inner surfaces of the tabs 33, 34, a re-peelable adhesive layer AL is provided on the surface of the base film BF, as shown in Figure 6. The entire inner surface of the cover sheet 20, i.e., the entire surface of the sheet, is a re-peelable adhesive surface. The re-peelable adhesive layer AL that constitutes the re-peelable adhesive surface is a low-tack layer and is made of a silicone-based adhesive or an acrylic-based adhesive. Preferably, the adhesive strength of the re-peelable adhesive layer AL, as measured by "ASTM:D3330", is an ultra-low tackiness of about 0.5-30 mN / 25 mm. The entire inner surface of the cover sheet 20 is a re-peelable adhesive surface, but the outer surface that faces outward when attached to the display device 10, on the side opposite to the inner surface, is a non-adhesive surface where the re-peelable adhesive layer AL is not provided.
[0029] As shown in Figure 6(B), in tab 34, adhesive tape 35 is attached to the inner surface of the re-peelable adhesive layer AL. The adhesive surface 35b of the adhesive tape 35 is adhered to the re-peelable adhesive surface, and the non-adhesive surface 35a of the adhesive tape 35 is exposed on the inner surface side of the cover sheet 20. The left tab 33 has the same structure, and the inner surfaces of the left and right tabs 33 and 34 are non-adhesive surfaces.
[0030] Next, we will explain the process of attaching and removing the cover sheet 20 in the packaging 1 of the display device. As shown in Figures 3 and 4, the cover sheet 20 can be made to face the front sheet portion 21 and the rear sheet portion 22 in the front-to-back direction (Y1-Y2 direction) by creating creases in the base film BF at the positions of the perforations 24 and 25. In addition, by creating creases in the base film BF at the positions of the left and right perforations 31 and 32, the left connecting piece 26 and the right connecting piece 27 extending from the rear sheet portion 22 can be directed forward (Y1 direction).
[0031] In the process of attaching the cover sheet 20 to the display device 10, the adhesive inner surface 21a of the front sheet portion 21, which is the re-peelable adhesive surface, is brought into close contact with the front surface 13a of the transparent panel 13 and bonded together, and the rear sheet portion 22 covers the rear surface 11b of the case 11. The left connecting piece 26 extending to the left from the rear sheet portion 22 and the right connecting piece 27 extending to the right are extended in front of the display device 10, and as shown in Figure 1, the adhesive inner surface 26a of the left connecting piece 26, which is the re-peelable adhesive surface, is brought into close contact with the outer surface 21b of the front sheet portion 21 and bonded together, and the adhesive inner surface 27a of the right connecting piece 27, which is the re-peelable adhesive surface, is brought into close contact with the outer surface 21b of the front sheet portion 21 and bonded together. In this process, as shown in Figures 1 and 2, the package 1 with the display device 10 covered by the cover sheet 20 is completed.
[0032] The re-peelable adhesive surface on the inner surface of the cover sheet 20 is a very weakly adhesive layer. However, the front surface 13a of the transparent panel 13 is close to a mirror surface with extremely low surface roughness. Therefore, when the bonding inner surface 21a of the front sheet portion 21 is brought into close contact with the front surface 13a, the front sheet portion 21 can maintain a state of being adhesively bonded to the front surface 13a. Furthermore, the outer surface 21b of the front sheet portion 21 facing forward (in the Y1 direction) is the film surface of the base film BF, and like the front surface 13a of the transparent panel 13, it is a smooth surface with extremely low surface roughness. Therefore, even if the adhesive strength of the re-peelable adhesive surfaces of the bonding inner surfaces 26a and 27a is extremely low, by bringing the bonding inner surface 26a of the left connecting piece 26 and the bonding inner surface 27a of the right connecting piece 27 into close contact with the outer surface 21b of the front sheet portion 21, the left connecting piece 26 and the right connecting piece 27 can maintain a state of being closely bonded to the outer surface 21b of the front sheet portion 21.
[0033] In the packaging 1 of the display device 10 shown in Figures 1 and 2, the front sheet portion 21 of the cover sheet 20 is in close contact with the front surface 13a of the transparent panel 13. The rear surface 11b of the case 11 is covered by the rear sheet portion 22 of the cover sheet 20, the upper side surface 11c of the case 11 is covered by the vertical middle portion 23 of the cover sheet 20, and the left side surface 11e and right side surface 11f of the case 11 are covered by the horizontal middle portions 28 and 29 of the cover sheet 20. With most of the display device 10 covered by the cover sheet 20, the display device 10 can be installed inside the vehicle, preventing damage to the display panel and case 11 of the display device 10.
[0034] When removing the cover sheet 20 from the display device 10, as shown in Figure 1, hold the tabs 33 and 34 located on the outer surface 21b of the front sheet portion 21 of the cover sheet 20 and not bonded to the outer surface 21b, and pull the left connecting piece 26 and the right connecting piece 27 forward. Since the bonding inner surface 26a of the left connecting piece 26 and the bonding inner surface 27a of the right connecting piece 27 are extremely weak adhesive surfaces that can be easily peeled off from the outer surface 21b of the front sheet portion 21 with little force.
[0035] Afterward, the left connecting piece 26 and the right connecting piece 27 are held by hand and the rear sheet portion 22 is lifted upward (Z1 direction) from the rear (Y2 direction). The rear surface 11b of the case 11 is coated with a matte finish or the like, and has a rougher surface than the front surface 13a of the transparent panel 13. In addition, the base film BF that makes up the cover sheet 20 is a relatively rigid film such as PET, and does not conform to the fine uneven shape of the rear surface 11b of the case 11, making it difficult to adhere to it. Therefore, even if the opposing inner surface 22a of the rear sheet portion 22 is a re-peelable adhesive surface, the opposing inner surface 22a will not stick to the rear surface 11b, and even if it did stick, the rear sheet portion 22 can be easily separated from the rear surface 11b. Although the inner surface 23a of the vertical middle section 23 and the inner surfaces 28a and 29a of the horizontal middle sections 28 and 29 of the cover sheet 20 are also re-peelable adhesive surfaces, the surface roughness of the upper side 11c, left side 11e, and right side 11f of the case 11 is greater than that of the front surface 13a of the transparent panel 13, so the vertical middle section 23 and the horizontal middle sections 28 and 29 can be separated from the case 11 with almost no adhesion. In addition, no adhesive layer remains attached to the rear surface 11b, upper side 11c, left side 11e, and right side 11f of the case 11.
[0036] The cover sheet 20 can be removed from the display device 10 by lifting the rear sheet portion 22 of the cover sheet 20 upwards and peeling the front sheet portion 21 from the front surface 13a of the transparent panel 13. Since the bonding inner surface 21a of the front sheet portion 21 is a re-peelable adhesive surface, it can be easily peeled off from the front surface 13a of the transparent panel 13.
[0037] Figures 7 and 8 show modified versions of the cover sheet 20 used in the packaging 1 of the display device according to the first embodiment. In the cover sheet 20 shown in Figure 5, the entire inner surface facing the viewer is a re-peelable adhesive layer, so the entire re-peelable adhesive surface (except for tabs 33 and 34) is covered with a release sheet (separator). Immediately before covering the display device 10, the release sheet is peeled off to expose the re-peelable adhesive surface over the entire inner surface of the cover sheet 20. In the modified versions of the cover sheet 20 shown in Figures 7 and 8, the release sheet 38 is left only on the portion covering the opposing inner surface 22a of the rear sheet portion 22, making the opposing inner surface 22a of the rear sheet portion 22 with the remaining release sheet 38 a non-adhesive surface. Even if a re-peelable adhesive layer AL with slightly stronger adhesive strength is used on the inner surface of the cover sheet 20, the opposing inner surface 22a of the rear sheet portion 22 is a non-adhesive surface, so the opposing inner surface 22a will not stick to the rear surface 11b of the case 11. Alternatively, instead of the release sheet 38, the same adhesive tape 35 used to attach to the inner surfaces of tabs 33 and 34 may be applied to the opposing inner surfaces 22a of the rear sheet portion 22, thereby making the opposing inner surfaces 22a a non-adhesive surface.
[0038] Figures 9 and 10 show the packaging 101 of the display device according to the second embodiment of the present invention. The cover sheet 120 used in the packaging 101 of the second embodiment has a front sheet portion 21, a vertical intermediate portion 23, and a rear sheet portion 22 that are formed continuously in the vertical direction. Two vertical connecting pieces 126 extend downward (in the Z2 direction) from both the left and right sides of the rear sheet portion 22. A vertical intermediate portion 128 is located between the rear sheet portion 22 and each of the vertical connecting pieces 126, and the rear sheet portion 22, the vertical intermediate portion 128, and the vertical connecting pieces 126 are formed continuously in the vertical direction. Perforations 131 are formed at the boundary between each vertical connecting piece 126 and the vertical intermediate portion 128, and perforations 132 are formed at the boundary between the vertical intermediate portion 128 and the rear sheet portion 22. In the cover sheet 120 shown in Figure 10, the entire inner surface facing the display device 10 is a re-peelable adhesive surface, and the joining inner surface 126a of the vertical connecting pieces 126 is also a re-peelable adhesive surface. Each vertical connecting piece 126 has a tab 133 that protrudes downward integrally formed thereon, and adhesive tape is attached to the inner surface of each tab 133.
[0039] In packaging using the cover sheet 120, the inner surface 21a of the front sheet portion 21 is brought into close contact with the front surface 13a of the transparent panel 13 located in front of the display device 10 and bonded with adhesive. Then, the rear sheet portion 22 is brought into contact with the rear surface 11b of the case 11 of the display device 10. The two vertical connecting pieces 126 extending downward from the display device 10 are then pulled forward, and as shown in Figure 9, the inner surfaces 126a of the two vertical connecting pieces 126 are brought into close contact with the outer surface 21a of the front sheet portion 21 and bonded with adhesive. The rear sheet portion 22 may also be provided with the left connecting piece 26 and the right connecting piece 27 shown in Figure 5, as well as the vertical connecting pieces 126 shown in Figures 9 and 10.
[0040] Figure 11 shows a package 201 of a display device according to a third embodiment of the present invention. In the third embodiment, the cover sheet 220 used in the packaging 201 has a left-side connecting piece 226 extending from the front sheet portion 21, with a transverse intermediate portion 228 provided between the front sheet portion 21 and the left-side connecting piece 226. Perforations are formed at the boundary between the left-side connecting piece 226 and the transverse intermediate portion 228, and at the boundary between the transverse intermediate portion 228 and the front sheet portion 21. A right-side connecting piece 227 extends from the front sheet portion 21, with a transverse intermediate portion 229 provided between the front sheet portion 21 and the right-side connecting piece 227. Perforations are formed at the boundary between the right-side connecting piece 227 and the transverse intermediate portion 229, and at the boundary between the transverse intermediate portion 229 and the front sheet portion 21. In the modified cover sheet 220 shown in Figure 11, the entire inner surface facing the display device 10 is a re-peelable adhesive surface. A tab 233 extends continuously from the left connecting piece 226, and a tab 234 extends continuously from the right connecting piece 227.
[0041] In the packaging process using the cover sheet 220, the inner surface 21a of the front sheet portion 21 is brought into close contact with the front surface 13a of the transparent panel 13 facing the display device 10 and bonded with adhesive. Then, the rear sheet portion 22 is brought into contact with the rear surface 11b of the case 11 of the display device 10. The left connecting piece 226 and the right connecting piece 227, which extend from the front sheet portion 21 to the left and right, are extended to the rear of the display device 10, and as shown in Figure 11, the inner surfaces of the left connecting piece 226 and the right connecting piece 227 are brought into close contact with the outer surface 22b of the rear sheet portion 22 and bonded with adhesive. [Explanation of Symbols]
[0042] 1,101,201 Packaging 10 Display device 11 cases 11b Rear surface 13 Transparent Panel 13a Surface 20,120,220 Cover Sheets 21 Front seat section 21a Inner surface of the bond 21b External surface 22 Rear seat section 22a Opposing inner surface 22b External surface 26 Left side connection piece 26a Inner surface of the bond 27 Right side connection piece 27a Joint inner surface 33,34 tabs 126 Vertical connecting piece 226 Left side connection piece 227 Right side connection piece BF base film AL Removable Adhesive Layer
Claims
1. A cover sheet for a display device having a case containing a display cell and a transparent panel covering a display screen facing forward of the case, The front sheet portion covering the front surface of the transparent panel, the rear sheet portion covering the rear surface of the case, and the connecting piece extending from the rear sheet portion or the front sheet portion are integrally formed. The front sheet portion has a joining inner surface and an outer surface, the rear sheet portion has an opposing inner surface and an outer surface, and the connecting piece has a joining inner surface and an outer surface, and the respective joining inner surface and the opposing inner surface are the same sheet surface. At least the inner surface of the joint of the front sheet portion and the inner surface of the joint of the connecting piece are made of a re-peelable adhesive surface. A cover sheet for a display device, characterized in that the joining inner surface of the front sheet portion can be adhered to the front surface of the transparent panel, and the joining inner surface of the connecting piece can be adhered to the outer surface of the front sheet portion or the outer surface of the rear sheet portion.
2. The cover sheet for a display device according to claim 1, wherein the entire surface of the sheet, including the bonding inner surface and the opposing inner surface, is a re-peelable adhesive surface.
3. The cover sheet for a display device according to claim 1, wherein the opposing inner surface of the rear sheet is a non-adhesive surface.
4. The cover sheet for a display device according to claim 3, wherein the entire surface of the sheet, including the bonding inner surface and the opposing inner surface, is a re-peelable adhesive surface, and a release sheet is provided on the opposing inner surface.
5. A cover sheet for a display device according to any one of claims 1 to 4, having a PET base film.
6. A display device having a case containing a display cell, a transparent panel covering a display screen facing forward of the case, and a cover sheet covering the display device, The cover sheet is integrally formed with a front sheet portion that covers the front surface of the transparent panel, a rear sheet portion that covers the rear surface of the case, and a connecting piece extending from the rear sheet portion or the front sheet portion. The front sheet portion has a joining inner surface and an outer surface, the rear sheet portion has an opposing inner surface and an outer surface, and the connecting piece has a joining inner surface and an outer surface, and the respective joining inner surface and the opposing inner surface are the same sheet surface. At least the inner surface of the joint of the front sheet portion and the inner surface of the joint of the connecting piece are made of a re-peelable adhesive surface. The inner surface of the front sheet portion is adhesively bonded to the front surface of the transparent panel. A packaging for a display device, characterized in that the connecting piece extending from the rear sheet portion extends forward of the display device, and the joining inner surface of the connecting piece is adhesively bonded to the outer surface of the front sheet portion, or the connecting piece extending from the front sheet portion extends rearward of the display device, and the joining inner surface of the connecting piece is adhesively bonded to the outer surface of the rear sheet portion.
7. The cover sheet has a re-peelable adhesive surface over its entire surface, including the bonding inner surface and the opposing inner surface. The packaging for the surface device according to claim 6, wherein the rear surface of the case has a rougher surface than the front surface of the transparent panel, and the opposing inner surface of the rear sheet is not adhered to the rear surface.
8. The packaging for a display device according to claim 6, wherein the cover sheet has a re-peelable adhesive surface over its entire surface, including the bonding inner surface and the opposing inner surface, and a release sheet is provided on the opposing inner surface.
9. The packaging for a display device according to any one of claims 6 to 8, wherein the cover sheet has a PET base film.