JP2021135326A - Winding substrate - Google Patents

Abstract

To provide a substrate which is easy to carry and whose unwinding part can maintain a flat surface even in an upper body held by one hand in an unwound state.SOLUTION: An upper surface of a substrate is composed of a configuration where strip-like members 1 are connected on a winding inner surface side, and has a support body foldable to a rear surface. Width of the strip-like member 1 ranges from 2 to 4 mm and its thickness ranges from 1 to 3 mm. In order to connect the inner surface side of the strip-like member, a film 2 is pasted onto the inner surface side. On a winding outer surface side of the strip-like members connected on the winding side inner surface side, there is a support body which can be folded into two or more so as to easily maintain a horizontal state when drawn out. One end of the support body is fitted to a housing cover of a roll-shaped substrate, the other end is fitted to a take-out terminal of the roll-shaped substrate, and both ends of the foldable support body are rotatably fitted. The foldable support body is formed by a thin plate 5 mm or less.SELECTED DRAWING: Figure 1(A)

Description

The present invention is a base that can be wound up in a roll shape and can be unwound. The base is wound around a roll core in the wound state, and is a base that is easy to carry. It relates to a base that can maintain a flat surface even when the unwinding part is held in the hand.

In the field of displays, organic EL displays (hereinafter abbreviated as OLEDs) are used in foldable mobile phones (hereinafter abbreviated as smartphones) by taking advantage of their thin film and flexibility. When a folding smartphone using OLED is expanded and used, a conventional 4-inch screen can be used as a 7 to 8-inch screen. The foldable type has appeared as one of the methods to solve the problem that the screen is small and difficult to see with conventional smartphones.

However, people want a display that has a large screen and is easy to carry. Therefore, a retractable display has been proposed. However, when the retractable display is unfolded, there is a problem that it cannot be held horizontally unless both ends are held by hand or unfolded on a desk.

Touch panel input is not possible when the screen is opened with both hands, and there is a major drawback that screen selection cannot be performed. In order to solve this problem, it has been reported that the unwound substrate ensures flatness, but when a display or touch panel is laminated on this substrate, there is a problem that it tends to form a mountain shape due to its weight. There was a problem that the film was dented when it was touched strongly.

Patent application number 2019-076044

The present inventor diligently studied a substrate that can be rolled up in a roll shape and that the unwound portion can be maintained horizontally even if it is held with one hand when it is pulled out, and a study is made on the new problem described above. As a result, this patent has been reached.

For example, an OLED can be attached to the substrate of the present invention to create a large roll-up display or touch panel, which can be rolled up to reduce the size. On the other hand, when unfolded, it can be held with one hand and input to the touch panel with the other hand. It is possible to do.

The present invention
(1) A base that can be rolled up and held horizontally when pulled out.
A roll-in type base that can be used.
(2) The upper surface of the base has a structure in which strip-shaped members are involved and connected on the inner surface side.
A retractable base characterized by having a foldable support on the back surface.
Board.
(3) The strip-shaped member has a width of 2 to 4 mm and a thickness of 1 to 3 mm.
Retractable base.
(4) A film was attached to the inner surface side in order to connect the inner surface side of the strip-shaped member.
A roll-in type base that is characterized by that.
(5) The winding outer surface of the strip-shaped member connected on the winding side inner surface side according to the above item 2.
On the side, multiple folds of two or more are possible to make it easier to maintain horizontality when pulled out.
It has a capable support, and one end of the support is taken by the storage cover of the roll-shaped substrate.
The feature is that the other end is attached to the take-out terminal of the roll-shaped board.
Retractable board.
(6) Both ends of the bendable support according to item 5 above are rotatably attached.
A featured roll-in type board.
(7) The bendable support according to the above item 5 is formed of a thin flat plate of 5 mm or less.
A roll-in type substrate characterized by being present.
(8) The retractable substrate according to the above 1 to 5 is automatically wound around the roll core and pulled.
Used with equipment equipped with a jig that can stop at any position when it comes out
Occasionally, the support bends according to the pull-out length of the board, resulting in a retractable base.
A retractable board that can be operated integrally with the board.

A part of the cross section of the substrate which is an example of the Example of this invention is shown. In (A), it was shown that the main board has a structure in which a large number of strip-shaped (1) members are arranged and bonded by a film (2) for connecting the winding inner surface side thereof. (B) shows a cross section in which the retractable base is wound on the roll of the core, and the adjacent members maintain the contact contact state on the inner surface side of the winding, but there is a gap between the adjacent members on the outer surface of the winding. It can be wound into a wound shape. An example of a panoramic view including the support of the present invention is shown. (3) is a cover, (4) is a support, (5) is a take-out terminal, (6) is the back side of the wrapping board, and (7) is the front side of the wrapping board to which a display or the like is attached. (8) is a rotatable fastener at one end of the bendable support. (9) is the bent part of the bendable support (folded in half in this case). An example of another shape of only the support of the present invention is shown. (12) shows one side of the cover for accommodating the retractable roll base plate, and (8) and (9) show the rotatable fasteners.

The strip-shaped member forming the present invention is selected in consideration of the roll diameter when wound around the roll core (10), but has a width of 1 to 4 mm and a thickness of 0.5 to 3 mm, which is smoother. In order to obtain a roll-in shape, the width is preferably 1 to 3 mm and the thickness is 0.5 to 2.
It is mm. Wood, plastic, and metal can be considered as the strip-shaped member, but plastic is preferable and can contribute to weight reduction.

In addition, plastic has the advantage that various cross-sectional shapes can be created during molding. There is also the advantage that the strip shape and the connecting part can be molded and created integrally. As the plastic material, a material that can be molded and has rigidity is selected, and examples thereof include, but are not limited to, polyester, polycarbonate, acrylic, nylon, polyimide, polyamide, and liquid crystal polymer. Glass fiber, carbon fiber, to ensure rigidity
CNT, graphene and the like may be added. Since the metal itself is rigid, it is durable against contact between adjacent lumbers. A film covering all the members is attached to the surface of each member so that the adjacent members come into contact with each other on the inner surface side of the winding, and the members are connected. A polyester film having tensile rigidity is selected as the film to be bonded, and a thickness of 25 to 100 μm is selected. Alternatively, a directly flexible organic EL display or a lower substrate film of a functional film may be used for bonding.

As the functional film, an OLED, a liquid crystal film, a mirror film, or the like is used. As a method of connecting, as described in addition to film bonding, there is a method of molding with the inner surface side connected when molding a plastic member, or a metal strip-shaped part is processed and partly connected in a chain shape. By creating the structure, the mechanical durability of the substrate can be improved.

One end of the retractable base is connected and fixed to the roll core with a connecting jig (11), and the other end is attached with a pull-out handle (5). In addition, these retractable boards are equipped with a cover that fits when wound around the roll core. The roll core is equipped with a jig that can rotate at both ends, and the retractable base can be automatically wound by the force of the spring. It is preferable to have a stopper that can be stopped at any position when the retractable base wound around the roll core is pulled out. This unwinding and winding operation is a method already adopted in roll screens and the like, and the same principle can be adopted.

The support of the unwinding board is selected to be folded in two or more, and one end thereof is fixed to the storage of the unwinding board and the other end is fixed to the take-out handle.
Even if it is fixed, it can be rotated on the spot. At the bent part of the support, the support is connected by a rotatable fastener.

If the roll side of the unwound board is held with one hand, it can be held horizontal by the unwound partial board structure and the support, so the OL provided on the unwound board with the other hand.
You can input by touching the surface of the ED or touch panel. The control circuit of the functional film such as OLED and touch panel provided on the unwinding board can be stored inside the roll part which is the core of the unwinding board. Alternatively, it can be stored in the handle.
Further, speakers and microphones can be provided at both ends of the roll core of the unwinding board of the present invention and the unwinding jig. By selecting the shape and material of the cover for accommodating the retractable substrate of the present invention, a part of the OLED screen can be seen even when the cover is wound around the roll core.

Claims (8)

A roll-up board that can be rolled up and held horizontally when pulled out.
A roll-in type base characterized in that the upper surface of the base has a structure in which strip-shaped members are connected on the inner side of the roll, and has a bendable support on the back surface.
A roll-in type base characterized in that the strip-shaped member has a width of 2 to 4 mm and a thickness of 1 to 3 mm.
A roll-in type base characterized in that a film is attached to the inner surface side in order to connect the inner surface side of the strip-shaped member.
The strip-shaped member connected on the inner surface side of the winding side according to the above item 2 has a support that can be folded in two or more so that it can be easily maintained horizontal when pulled out. A roll-in type board characterized in that one end is attached to the storage cover of the roll-shaped board and the other end is attached to the take-out terminal of the roll-shaped board.
A roll-in type substrate characterized in that both ends of the bendable support according to the above item 5 are rotatably attached.
A roll-in type substrate according to the above item 5, wherein the bendable support is formed of a thin flat plate of 5 mm or less.
The retractable substrate according to the above 1 to 5 is automatically wound around the roll core, and when used with equipment equipped with a jig that can stop at an arbitrary position when pulled out, it is supported according to the withdrawal length of the substrate. A roll-in board that can be operated integrally with a roll-in board by bending the body.

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