KR102392551B1 - The flexible display frame and method of manufacturing the flexible display frame - Google Patents

Abstract

The present invention relates to a frame for a flexible display and a method for manufacturing the same, and a frame for preventing ink defects from occurring due to the flexible display by the frame when the flexible display is bent in a state in which the flexible display is seated on the frame, and a method for manufacturing the same is about
The frame and manufacturing method for a flexible display of the present invention comprises a plate-shaped support member and an elastic material positioned on the upper surface of the support member, and a segmented groove or elastic material for bending along the bending section of the flexible display. Alternatively, it is characterized in that a mesh pattern is formed.

Description

Frame and manufacturing method for flexible display

The present invention relates to a frame for a flexible display and a manufacturing method, and more particularly, a frame for preventing ink defects from occurring by the flexible display by the frame when the flexible display is bent while the flexible display is seated on the frame and to a manufacturing method thereof.

In general, a display device using a flat panel display panel is mainly applied to a notebook computer, a portable electronic device, a television or a monitor.

In recent years, as the demand for portable electronic devices or laptops, which are easy to carry and have large screens, increases, the development of flexible display panels that can be folded or rolled to meet all of these demands is accelerating.

These flexible displays can be bent or folded without loss of function by using plastic or metal thin films instead of glass as substrates. The products are endless.

In order for such a flexible display to be freely bent, a frame supporting the flexible display should also be flexibly bent together with the flexible display. Therefore, the flexible display can be freely bent by supporting the back of the bending part of the flexible display using an elastic material.

However, at this time, a structure in which the elastic material presses the flexible display occurs according to the direction of the bending, which may cause a defect in ink in the flexible display.

Republic of Korea Patent Publication No. 10-2016-0124286

The present invention has been devised to solve the problems of the prior art, and the purpose of the present invention is to prevent a defect in ink caused by the elastic material located on the back side of the bending part pressing the flexible display when the flexible display is bent. there is.

In order to achieve the above object, a frame for a flexible display and a manufacturing method of the present invention include: Step 1-1 of manufacturing a plate-shaped support member; Step 1-2 of forming one or more upper partial cut-outs at a position to be bent on the upper surface of the support member; Steps 1-3 of stacking an elastic material on the upper surface of the support member in which the upper cut-out groove is formed; In accordance with the position of the upper cut-out groove, the lower surface of the support member, the step 1-4 of forming one or more lower cut-out to penetrate the upper cut-out; characterized in that it comprises a.

The upper part cut groove and the lower part cut groove are V-cutting, and the angle of the V-cut shape is 35 degrees to 45 degrees.

Step 2-1 of manufacturing a plurality of plate-shaped support members having a cut section in which the flexible display is bent; a 2-2 step of stacking a first elastic material on the upper surfaces of the plurality of support members; A second and third step of forming a second elastic material in a section in which the flexible display is bent between the plurality of support members; characterized in that it comprises a.

At least one coupling hole for coupling with the second elastic material is formed in the vicinity of which the second elastic material is coupled in the support member in step 2-1, and in step 2-2, the support member It is characterized in that the first elastic material is piled up in a portion except for the vicinity where the coupling hole is formed.

Step 3-1 of manufacturing a plate-shaped support member; a 3-2 step of stacking an elastic material on the upper surface of the support member; a third step of forming one or more lower cut-out grooves at a position to be bent on the lower surface of the support member; In accordance with the position of the one or more lower cut-out grooves formed in step 3-3, a step 3-4 of forming an upper partial cut-out in the elastic material is included, and the lower cut-out and the upper cut-out It is characterized in that it does not penetrate.

The lower part cut groove is characterized in that the V-cut proceeds, and the upper part cut groove proceeds as a square cut.

Step 4-1 of manufacturing a plate-shaped support member; a 4-2 step of stacking an elastic material on the upper surface of the support member; and a 4-3 step of forming a mesh pattern portion at a position to be bent of the support member and the elastic material.

a support member manufactured in a plate shape; at least one upper partial cutout formed at a position to be bent on the upper surface of the support member; an elastic material positioned on the upper surface of the support member and partially penetrated into the upper cut-out; It characterized in that it comprises a; at least one lower cut-out groove formed to penetrate through the upper partial cut-out in accordance with the position of the upper partial cut-out on the lower surface of the support member.

The upper part of the cut groove and the lower part of the cut groove, characterized in that formed in a V shape, the angle of the V shape is characterized in that it has a 35 degree to 45 degree.

The lower cut-out groove is characterized in that the upper end has a circular shape convex upward.

The lower cut-out groove is characterized in that it has a rectangular shape.

The upper partly cut groove is characterized in that it consists of one groove having a certain depth, and a plurality of lower partly cut grooves are formed on the lower side of the upper partly cut groove.

a plurality of plate-shaped support members having a shape in which a section in which the flexible display is bent is cut; a plurality of first elastic materials positioned on the upper surfaces of the plurality of support members; and a second elastic material positioned between the plurality of support members.

The first elastic material is characterized in that it is not located in a portion of the support member in the vicinity of the second elastic material.

At least one support member coupling hole is formed in a section where the first elastic material is not located.

a support member manufactured in a plate shape; an elastic material positioned on the upper surface of the support member; at least one lower cut-out groove formed at a position where the flexible display is bent on the lower surface of the support member; One or more upper cut-outs formed on the upper surface of the elastic material according to the position of the lower cut-outs; and, characterized in that the lower cut-outs and the lower cut-outs do not penetrate.

The lower part of the cut groove is formed in a V shape, and the upper part of the cut groove is characterized in that it is formed in a rectangular shape.

a support member manufactured in a plate shape; an elastic material positioned on the upper surface of the support member; and a mesh pattern portion in which a plurality of shapes are continuously formed so as to penetrate the support member and the elastic material along a section in which the flexible display is bent.

The mesh pattern part is characterized in that it has a form in which a rectangular shape is repeated as a whole.

The mesh pattern part is characterized in that it has a form in which a circular shape is repeated as a whole.

According to the present invention, since the segmented groove or elastic material or mesh pattern for bending is formed along the bending section of the flexible display, there is an effect of preventing ink defects caused by the elastic material pressing the flexible display.

1 is a perspective view of a frame for a flexible display according to an embodiment of the present invention.
2 and 3 are perspective views showing a frame for a flexible display and a manufacturing method thereof according to a first embodiment of the present invention.
4 is a cross-sectional view showing an upper segmental groove and a lower segmental groove of a frame for a flexible display and a manufacturing method according to the first embodiment of the present invention.
5 is a perspective view showing a method of manufacturing a frame for a flexible display according to the first embodiment of the present invention.
6 is a side view showing a method of manufacturing a frame for a flexible display according to the first embodiment of the present invention.
7 is a cross-sectional view showing various shapes of the upper segmental groove and the lower segmental groove of the frame and manufacturing method for a flexible display according to the first embodiment of the present invention.
8 and 9 are perspective views showing a frame for a flexible display and a manufacturing method according to a second embodiment of the present invention.
10 is a cross-sectional view showing a frame for a flexible display and a manufacturing method according to a third embodiment of the present invention.
11 to 13 are perspective views illustrating a frame for a flexible display and a manufacturing method according to a fourth embodiment.

Hereinafter, the present invention will be described in more detail with reference to the accompanying exemplary drawings. In describing the present invention, descriptions of already known functions or configurations will be omitted in order to clarify the gist of the present invention. Also, like reference numerals refer to like elements throughout.

Referring to FIG. 1 , the frame 10 for a flexible display is positioned at the lower end of the flexible display 1 , and the flexible display 1 and the frame 10 for the flexible display are folded around the bending unit 100 .

first embodiment

1 and 2, the frame 10 for a flexible display according to the first embodiment is a support member 11 manufactured in a plate shape to match the external shape of the flexible display 1, and an upper surface of the support member 11 At least one upper partial cut-out 11-1 formed in the section where the flexible display 1 is bent, located on the upper surface of the support member 11, and partially penetrated into the upper partial cut-out 11-1, and has a plate-like shape as a whole Elastic material 12, one or more lower cut-out grooves 11-2 formed to penetrate through the upper cut-out grooves 11-1 on the lower surface of the support member 11 in accordance with the position of the upper cut-out grooves 11-1 is made of

In addition, in the manufacturing method of the frame for a flexible display according to the first embodiment, the first step 1-1 of manufacturing the plate-shaped support member 11, the flexible display 1 on the upper surface of the support member 11 is bent. The first step 1-2 of forming one or more upper cut-out grooves 11-1 to match, the first step of flatly stacking the elastic material 12 on the upper surface of the support member 11 in which the upper partial cut-out grooves 11-1 are formed Step 1-3, according to the position of the upper partial cut-out 11-1, one or more lower cut-out grooves 11-2 are formed on the lower surface of the support member 11 to penetrate through the upper partial cut-out grooves 11-1. It consists of steps 1-4.

In step 1-3, the upper surface of the elastic material 12 has a flat shape, and the lower surface has a shape in which the elastic material 12 penetrates into the upper cut-out groove 11-1.

In addition, the lower partial cut-out groove 11-2 formed in steps 1-4 partially overlaps the lower surface of the upper partial cut-out groove 11-1, and the upper partial cut-out groove 11-1 and the lower partial cut-out groove 11- 2) is penetrated, and a portion of the elastic material 12 penetrating into the upper cut-out groove 11-1 also has a shape cut to match the shape of the lower cut-out groove 11-2.

In the first embodiment, the method of insert molding is applied as a method of stacking the elastic material 12 on the support member 11, but the method may be changed as needed.

In addition, although silicone is used as the elastic material 12 in the first embodiment, the material may be radiused if necessary.

As a method of processing the upper partly cut groove 11-1 and the lower partly cut groove 11-2, a method such as CNC, etching, laser, press, etc. may be used.

If only the lower part cut groove 11-2 is processed on the support member 11 without processing the upper part cut groove 11-1, when the flexible display 1 is bent, the lower part cut groove 11-2 The upper side protrudes toward the elastic material 12 , and the protruding portion leads to the upper surface of the elastic material 12 , causing a defect in ink in the flexible display.

In order to prevent this, the upper part cut-out groove 11-1 is formed.

4, in the first embodiment, the upper part cut groove 11-1 and the lower part cut groove 11-2 are V-cutting, and the V-cut upper part cut groove angle (a) and the lower part cut groove The angle (b) is preferably made to have 35 degrees to 45 degrees.

In addition, it is preferable that the upper cut-off groove depth (c) has a value of 0.1±0.05 mm, and the lower partial cut-out groove depth (d) has a value of 0.15±0.05 mm.

The angle and depth can be changed as needed.

5 and 6, in the first embodiment, when the upper part cut groove 11-1 and the lower part cut groove 11-2 are processed, the realization of the V-cut shape and the wear degree of the T-cut tool 201 are shown. In order to minimize it, a V-cut support member seating jig 200 is used.

Using the support member seating jig 200, the support member 11 is tilted to have an angle of 50 to 70 degrees with the vertical line of the ground, and then, using the T-cut tool 201, the upper cut-out groove 11-1 and the lower The processing of the segmented groove 11-2 proceeds.

The shape and processing method of the upper part cut groove 11-1 and the lower part cut groove 11-2 may be changed as needed.

Referring to FIGS. 7A and 7B , the shape of the lower cut-out groove 11-2 may be not only a V shape, but also a circular shape convex upwards, or a rectangular shape.

In addition, as shown in FIG. 7C , the upper partial cut-out 11-1 consists of a single groove with a constant depth over the section in which the flexible display 1 is bent, and It may have a shape in which a plurality of lower cut-out grooves 11-2 are formed on the lower side.

second embodiment

8 and 9, in the frame for a flexible display according to the second embodiment, a first support member 21 and a second support member ( 22), the first elastic material a (23) and the first elastic material b (24) positioned on the upper surfaces of the first support member 21 and the second support member 22, the first support member 21 and the second It consists of the 2nd elastic material (25) located between the 2 support members (22).

In addition, the method for manufacturing a frame for a flexible display according to the second embodiment includes a step 2-1 of manufacturing two plate-shaped support members 21 and 22 in which a portion in which the flexible display 1 is bent is cut. Step 2-2 of flatly stacking the first elastic materials 23 and 24 on the upper surfaces of the support members 21 and 22, flexible between the first support member 21 and the second support member 22 The second and third steps of forming the second elastic material 25 in the section where the display 1 is bent are performed.

In the second embodiment, the first support member 21 and the second support member 22 have a shape of symmetrical about the second elastic material 25, but may be asymmetrical if necessary, and the bending section is When there is a plurality, the number of the support members 21 and 22 may be further increased.

In step 2-1, the first support member 21 has a plurality of first support member coupling holes 21-1, and the second support member 22 has a plurality of second support member coupling holes 22-2. ) can be formed together, and the positions of the first support member coupling hole 21-1 and the second support member coupling hole 22-1 are many along a straight section adjacent to the second elastic material 25 . each can be formed.

In addition, in step 2-2, the first elastic material a (23) is applied to the portion of the first support member (21) except for a straight section along the vicinity of the plurality of first support member coupling holes (21-1) formed. is formed, and the second elastic material b 24 is formed in a portion of the second support member 22 except for a straight section along the vicinity where the plurality of second support member coupling holes 22-1 are formed.

The upper surface of the second elastic material 25 has the same height as the first elastic materials 23 and 24 in a flat shape, and the lower surface of the second elastic material 25 has a portion adjacent to the support members 21 and 22 supporting members 21 and 22. It has a shape that protrudes to the bottom according to the height of the

In the second embodiment, the second elastic material 25 is made of urethane, but the material can be changed as needed.

As a method of stacking the first elastic materials 23 and 24 on the support members 21 and 22, a method such as insert molding may be applied, and a material such as silicon may be applied to the first elastic materials 23 and 24. .

As a method of processing the first support member coupling hole 21-1 and the second support member coupling hole 22-1, a method such as CNC, etching, laser, or press may be used.

The advantage according to the second embodiment is that the effect of improving the quality due to the common use of the left and right support members 21 and 22 and the reduction in the size of the support members 21 and 22 due to incision in some sections centered on the bending section is effective. and minimized raw material loss and production ST. There is an effect of reducing the cost due to the shortening, and since the machining of the segmented groove is unnecessary, the investment in equipment for the segmented groove processing is unnecessary, and the processing of the second elastic material 25 using general-purpose facilities shortens the delivery time and Mass production is possible.

3rd embodiment

Referring to FIG. 10 , the frame for a flexible display according to the third embodiment includes a support member 31 manufactured in a plate shape, an elastic material 32 positioned on the upper surface of the support member 31 , and the support member 31 . One or more lower cut-out grooves 31-1 formed at the position where the flexible display 1 is bent from the lower surface, one formed on the upper surface of the elastic material 32 in accordance with the positions of the lower cut-out grooves 31-1 It consists of the upper part cut-out groove (32-1) of the above.

In addition, in the method for manufacturing a frame for a flexible display according to the third embodiment, the 3-1 step of manufacturing the plate-shaped support member 31, flatly stacking the elastic material 32 on the upper surface of the support member 31 Step 3-2, at least one lower cut-out formed in step 3-3 and step 3-3 of forming one or more lower cut-out grooves 31-1 at a position to be bent on the lower surface of the support member 31 In accordance with the position of the groove (31-1), it is characterized in that it is made in the third and fourth steps of forming the upper partial cut-out groove (32-1) in the elastic material (32).

In the third embodiment, the lower part cut groove 31-1 proceeds as a V cut, and the upper part cut groove 32-1 proceeds with a square cut, but the shape may be changed as needed.

As a method of stacking the elastic material 32 on the support member 31 , a method such as insert molding may be applied, and the elastic material 32 may be a material such as silicon.

As a method of processing the lower partly cut groove 31-1 and the upper part cut groove 32-1, a method such as CNC, etching, laser, or press may be used.

In the third embodiment, the lower cut-out 31-1 is formed in a V shape, and the upper cut-out 32-1 is formed in a rectangular shape, but the shape can be changed as needed.

4th embodiment

11 to 13, the frame for a flexible display according to the fourth embodiment includes a support member 41 manufactured in a plate shape, an elastic material 42 positioned on the upper surface of the support member 41, and a flexible display ( 1) consists of a mesh pattern portion 43 formed in a form in which various shapes are repeated on the support member 41 and the elastic material 42 according to the bending position.

In the method for manufacturing a frame for a flexible display according to the fourth embodiment, the 4-1 step of manufacturing the plate-shaped support member 41, the 4-2 step of stacking the elastic material 42 on the upper surface of the support member 41 Step 4-3 of forming the mesh pattern portion 43 at the position to be bent of the support member 41 and the elastic member 42 is performed.

As a method of stacking the elastic material 42 on the support member 41 , a method such as insert molding may be applied, and the elastic material 42 may be a material such as silicon.

As a method of processing the mesh pattern part 43, a method such as CNC, etching, laser, press, etc. may be used.

The shape of the mesh pattern 43-1 of the mesh pattern part 43 may be a rectangular shape or a circular shape, and may have a rhombus shape or various other shapes.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that you can.

1: flexible display, 10: frame for flexible display,
11: support member, 11-1: upper part cut groove, 11-2: lower part cut groove,
12: elastic material, 21: first support member, 21-1: first support member coupling hole,
22: second support member, 22-1: second support member coupling hole,
23: first elastic material a, 24: first elastic material b: 25: second elastic material,
25-1: second elastic material protrusion, 31: support member, 31-1: lower part cut groove,
32: elastic material, 32-1: upper part cut groove, 41: support member,
42: elastic material, 43: mesh pattern part, 43-1: mesh pattern,
100: bending part, 200: support member seating jig, 201: T-cut tool,
a: angle of upper cut-off groove, b: angle of lower cut-off groove,
c: depth of upper cut-out, d: depth of lower cut-out,

Claims (20)

delete delete delete delete In the method for manufacturing a frame for a flexible display,
Step 3-1 of manufacturing a plate-shaped support member;
a 3-2 step of stacking an elastic material on the upper surface of the support member;
a third step of forming one or more lower cut-out grooves at a position to be bent on the lower surface of the support member;
In accordance with the position of the one or more lower partly cut grooves formed in the 3-3 step, a 3-4th step of forming an upper partial cutout groove in the elastic material;
The method of manufacturing a frame for a flexible display, characterized in that the lower cut-out and the upper cut-out are not penetrated.
6. The method of claim 5,
The lower cut-out groove proceeds as a V-cutting,
The upper cut-out groove is a method for manufacturing a frame for a flexible display, characterized in that it proceeds with a square cut.
In the method for manufacturing a frame for a flexible display,
Step 4-1 of manufacturing a plate-shaped support member;
a 4-2 step of stacking an elastic material on the upper surface of the support member;
A method of manufacturing a frame for a flexible display, comprising a; a 4-3 step of forming a mesh pattern portion at a position to be bent of the support member and the elastic material.
delete delete delete delete delete delete delete delete In the frame for a flexible display,
a support member manufactured in a plate shape;
an elastic material positioned on the upper surface of the support member;
at least one lower cut-out groove formed at a position where the flexible display is bent on the lower surface of the support member;
One or more upper partial cut grooves formed on the upper surface of the elastic material according to the position of the lower partial cut groove;
The frame for a flexible display, characterized in that the lower cut-out groove and the lower cut-out groove do not penetrate.
17. The method of claim 16,
The lower cut-out groove is formed in a V shape,
The frame for a flexible display, characterized in that the upper cut-out groove is formed in a rectangular shape.
In the frame for a flexible display,
a support member manufactured in a plate shape;
an elastic material positioned on the upper surface of the support member;
A frame for a flexible display comprising a; a mesh pattern portion in which a plurality of shapes are continuously formed so as to penetrate the support member and the elastic material along a section in which the flexible display is bent.
19. The method of claim 18,
The mesh pattern part,
A frame for a flexible display, characterized in that it has a shape in which a rectangular shape is repeated as a whole.
19. The method of claim 18,
The mesh pattern part,
A frame for a flexible display, characterized in that it has a form in which a circular shape is repeated as a whole.

Images