Double-infolding three-folding screen light and thin structure

Abstract

A light and thin structure of a double-inward-folding triple-folding screen is composed of a first-folding shell 1, a second-folding shell 2, a first hinge 3, a second-folding hinge 4, a foldable screen 5 and a triple-folding special device. The first hinge 3 is used for being connected with the first-folding shell 1 and the second-folding shell 2 and guiding the foldable screen 5 on the first hinge 3 to be bent and folded at the angle of 0-180 degrees. The second folding hinge 4 is located on the other side of the second folding shell 2 and hinged to the second folding shell 2, and the other end of the second folding hinge 4 is hinged to a screen protection plate 6. And the screen protection plate 6 is exposed outside. The total thickness of the foldable screen 5 and the screen protection plate 6 is about 1.2-1.5 mm, and the foldable screen 5 and the screen protection plate 6 can be horizontally arranged in a gap between the foldable screen 5 formed after the first-folding shell 1 and the second-folding shell 2 are folded, so that light, thin and safe two-way inward folding is achieved. And the one-fold shell 1 covers the upper surface of the screen protection plate 6 after the three folds. The three-folding screen structure is compact and optimized through two-way inward folding, and has the advantages of being light, thin, portable, safe and durable.

Description

Technical Field

[0001] A lightweight structure for a double-inward-folding tri-folding screen relates to the field of electronic display devices. Background Technology

[0002] Existing tri-fold screens all have an inward fold and an outward fold structure, unfolding in a "Z" shape; however, one section of the screen is exposed when folded outward, which is very easy to cause wear and tear, and there is also the risk of unpredictable damage due to violations of conventional operating habits and reverse folding; in addition, the triple-fold overlap is also relatively thick and heavy.

[0003] Purpose of the invention

[0004] The purpose of this invention is to design a lightweight and secure tri-fold screen structure with bidirectional inward folding. Summary of the Invention

[0005] This invention comprises a single-fold outer shell 1, a double-fold outer shell 2, a first hinge 3, a second hinge 4, a foldable screen 5, and a special three-fold design. The first hinge 3 connects to the single-fold outer shell 1 and the double-fold outer shell 2, guiding the foldable screen 5 to fold at angles from 0 to 180 degrees. When the single-fold outer shell 1 and the double-fold outer shell 2 are both at 0 degrees and on the same horizontal plane, the foldable screen 5 is also unfolded horizontally. When both the single-fold outer shell 1 and the double-fold outer shell 2 are folded inwards towards the foldable screen 5 at a 90-degree angle, the single-fold outer shell 1 and the double-fold outer shell 2 are parallel and overlapping, and the foldable screen 5 also overlaps and becomes parallel. The second hinge 4 is located on the other side of the double-fold outer shell 2, hinged to it, and its other end is hinged to a screen protector 6. The screen protector 6 is exposed. The total thickness of the foldable screen 5 plus the screen protector 6 is approximately 1.2-1.5 mm. It can be nestled within the gap between the first-fold outer shell 1 and the second-fold outer shell 2 when the folded screen 5 is folded, thus achieving a thin and secure bi-directional inward fold. The first hinge is slightly thicker, while the second hinge is slightly thinner; the opening 7 of the first hinge is approximately 1.5-1.8 mm wider than the opening 8 of the second hinge. The gap between the first-fold outer shell 1 and the second-fold outer shell 2 after folding is correspondingly approximately 1.5-1.8 mm, allowing the screen protector 6 and the foldable screen 5 to be nestled together. After three folds, the first-fold outer shell 1 covers the screen protector 6.

[0006] This invention features a bidirectional inward folding design, achieving a compact and optimized three-fold screen structure that is lightweight, portable, safe, and durable. Attached Figure Description

[0007] Figure 1 This is the front view of the present invention.

[0008] Figure 2 This is an unfolded top view of the present invention.

[0009] Figure 3This is an unfolded bottom view of the present invention.

[0010] Figure 4 This is a schematic diagram of the internal structure of the present invention. Detailed Implementation

[0011] Example: This example consists of a single-fold outer shell 1, a double-fold outer shell 2, a first hinge 3, a second hinge 4, a foldable screen 5, and a special three-fold design. The first hinge 3 connects to the single-fold outer shell 1 and the double-fold outer shell 2, guiding the foldable screen 5 to fold from 0 to 180 degrees. When the single-fold outer shell 1 and the double-fold outer shell 2 are both at 0 degrees and on the same horizontal plane, the foldable screen 5 is also horizontally unfolded. When both the single-fold outer shell 1 and the double-fold outer shell 2 are folded inwards towards the foldable screen 5 at a 90-degree angle, they are parallel and overlapping, and the foldable screen 5 also overlaps and becomes parallel. This functionality depends on the support and torsion of the first hinge 3. The second hinge 4 is located on the other side of the double-fold outer shell 2, hinged to it, and its other end is hinged to a screen protector 6. The screen protector 6 is exposed. A section of the foldable screen 5, unfolded from the first-fold outer shell 1 and the second-fold outer shell 2, is covered by the screen protector 6. The screen protector 6 is made of a highly rigid material, such as titanium alloy, aerospace aluminum, or carbon fiber. It is highly rigid, has low elasticity, does not deform, and is thin and light, with a thickness less than that of the foldable screen 5, approximately 0.3-0.5 mm. The total thickness of the foldable screen 5 plus the screen protector 6 is approximately 1.2-1.5 mm. The reason for making it so thin is to allow it to be nestled within the gap between the first-fold outer shell 1 and the second-fold outer shell 2 when the folded screen 5 is folded, thus achieving a thin and safe bidirectional inward fold. The ability to nest with varying thicknesses depends on the thickness of hinge 3 (first fold) and hinge 4 (second fold) within the first-fold outer shell 1 and the second-fold outer shell 2, and the different widths of the openings for accommodating the screen. Hinge #1 is slightly thicker, while hinge #2 is slightly thinner. However, their horizontal placement should be consistent during manufacturing to ensure the foldable screen 5 they support remains level when unfolded. Hinge #1 has a wider opening 7, while hinge #2 has a narrower opening 8. The hinge thickness determines the relative thickness of the outer shell when unfolded horizontally, and the hinge width determines the relative thickness when the two shells are folded and overlapped. A wider hinge provides greater coverage and results in a thicker overall structure, while a narrower hinge provides less coverage and results in a thinner overall structure. Hinge #1's opening 7 is approximately 1.5-1.8 mm wider than hinge #2's opening 8. The gap between the first-fold shell 1 and the second-fold shell 2 after folding is correspondingly approximately 1.5-1.8 mm, allowing the screen protector 6 and the foldable screen 5 to lie flat together without directly touching the folded portion of the foldable screen 5. After three folds, the first-fold shell 1 covers the screen protector 6. Furthermore, the manufacturing process should include measures such as screen bezels for secondary protection, so that they are not damaged due to mutual contact or friction.

Claims

1. A double inner folding three-fold folding screen thin structure, comprising a one-fold shell (1), a two-fold shell (2), a first hinge (3), a second hinge (4), a foldable screen (5) and a three-fold special setting, the first hinge (3) is responsible for linking the one-fold shell (1) and the two-fold shell (2), and guiding the foldable screen (5) above to bend and fold at an angle of 0-180 degrees, when the one-fold shell (1) and the two-fold shell (2) are at the same horizontal plane with an angle of 0, the foldable screen (5) above is also in a horizontal plane unfolded state, when the one-fold shell (1) and the two-fold shell (2) are folded at an angle of 90 degrees towards the inner folding direction of the foldable screen (5), the one-fold shell (1) and the two-fold shell (2) are in a parallel overlapping state, at the same time, the foldable screen (5) is also in a parallel overlapping state, the realization of this function depends on the support and torsion of the first hinge (3); characterized in that, The second folding hinge (4) is located on the other side of the second folding shell (2) and is hinged to the second folding shell (2), and the other end is hinged to a screen guard plate (6) exposed outside. The screen guard plate (6) covers a part of the surface of the foldable screen (5) spread along the first folding shell (1) and the second folding shell (2), and is made of a material with extremely strong rigidity, such as titanium alloy, aviation aluminum, carbon fiber material, etc. It has high hardness, small elasticity, no deformation, and is light and thin, with a thickness less than that of the foldable screen (5), about 0.3-0.5mm. The total thickness of the foldable screen (5) plus the screen guard plate (6) is about 1.2-1.5mm. The purpose of making it so thin is to lay it in the gap between the first folding shell (1) and the second folding shell (2) after folding the foldable screen (5), so as to achieve a light and safe bidirectional folding. The unequal thickness difference function of laying depends on the thickness of the first hinge (3) and the second folding hinge (4) in the first folding shell (1) and the second folding shell (2) and the opening width of the space into which the screen is placed. The first hinge is thicker, and the second hinge is thinner, but their horizontal positions should be consistent in manufacturing process, so that the foldable screen (5) held by them can maintain the same horizontal line when unfolded. The first hinge opening (7) is wider, and the second hinge opening (8) is narrower. The thickness of the hinge determines the relative thickness when the shell is unfolded horizontally, and the width of the hinge determines the relative thickness when the two shells are folded and overlapped. The wider the width, the greater the containment and the overall thickness. Conversely, the narrower the width, the smaller the containment and the overall thickness. The first hinge opening (7) is about 1.5-1.8mm wider than the second hinge opening (8). The gap between the first folding shell (1) and the second folding shell (2) after folding is about 1.5-1.8mm, which can accommodate the screen guard plate (6) and the foldable screen (5) together. The screen guard plate (6) and the foldable screen (5) are not allowed to touch the folded part of the foldable screen (5). The first folding shell (1) covers the screen guard plate (6) after folding, and the screen frame and other measures are added for secondary protection in the manufacturing process, so that they are not damaged by mutual friction.

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