CN112866459B

CN112866459B - Display terminal

Info

Publication number: CN112866459B
Application number: CN202110219693.3A
Authority: CN
Inventors: 梁玉; 姜雷雷; 单奇
Original assignee: Yungu Guan Technology Co Ltd
Current assignee: Yungu Guan Technology Co Ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2023-01-31
Anticipated expiration: 2041-02-26
Also published as: CN112866459A

Abstract

The invention relates to the technical field of electronic display equipment, and particularly discloses a display terminal, which comprises a shell, a rotating shaft assembly and a flexible screen, wherein the shell is provided with an accommodating cavity; the rotating shaft assembly is partially arranged in the accommodating cavity and partially protrudes out of the accommodating cavity; the flexible screen is around locating the pivot subassembly to form and be located the hidden district and the extension that hold the intracavity and be located the display area that holds the intracavity, the display area includes the display part and around locating pivot subassembly upper curve portion, the hidden district includes the extension parallel with the display part, the display part is D with the perpendicular distance of extension, the arc length of the longitudinal section of curve portion is L, L < 1/4 pi D. The arc length L of the longitudinal section of the curved surface part is less than 1/4 pi D through the rotating shaft assembly, compared with the situation that a flexible screen bypasses a rotating shaft in the prior art, the arc length L 'of the longitudinal section of the curved surface structure is not equal to 1/4 pi D', the area of the curved surface part is reduced through the rotating shaft assembly, and then when the display terminal falls, the risk of damage to the curved surface part is reduced.

Description

Display terminal

Technical Field

The invention relates to the technical field of electronic display equipment, in particular to a display terminal.

Background

With the continuous development of flexible screens, display terminals such as mobile phones capable of being folded inwards, folded outwards, folded inwards, curled and slid are developed in the prior art. Because the screen size of the sliding mobile phone can be continuously changed within a certain range according to requirements, and compared with the inward-folding mobile phone and the outward-folding mobile phone, the screen crease of the sliding mobile phone is not obvious, and therefore, the sliding mobile phone is very likely to become a next generation flexible display product for mass production.

As shown in fig. 1, a sliding mobile phone in the prior art includes a first housing 1 ', a second housing (not shown), and a flexible screen 3 ', wherein the first housing 1 ' can slide back and forth relative to the second housing along a first direction to adjust the size of the sliding mobile phone along the first direction. One end of the first machine shell 1 'along the first direction is provided with a rotating shaft 2', the flexible screen 3 'bypasses the rotating shaft 2', two ends of the flexible screen are respectively connected with the second machine shell and the first machine shell 1 ', one part of the flexible screen 3' is positioned at the outer sides of the first machine shell 1 'and the second machine shell and is used for displaying contents, and the other part is positioned at the inner side of the first machine shell 1'. When the first housing 1 ' slides, the flexible screen 3 ' slides around the rotation shaft 2 ', thereby changing the size of the flexible screen 3 ' located at the outside of the first housing 1 ' and the second housing.

As shown in fig. 1, in order to make a greater use of the display area, the rotating shaft 2 ' exposed outside the housing 1 ', i.e. the display screen corresponding to the upper half of the rotating shaft 2 ', is also used as the display area, the display area is a curved structure 31 ', the diameter of the curved structure 31 ' is equal to the diameter of the rotating shaft 2 ', the arc length L ' =1/4 pi D ' of the longitudinal section of the curved structure 31 ', wherein D ' is the diameter of the rotating shaft 2 ', and D ' is the vertical distance between the portion of the flexible screen 3 ' outside the housing 1 ' and the portion inside the housing 1 '. However, since the screen body around the upper half of the rotation shaft 2 'is exposed outside the housing 1' and is in a bent state, the flexible screen 3 'itself has a bending form with stress, and thus, when the screen body of the sliding mobile phone falls, the bent structure 31' has a greater risk of damage after contacting the ground.

Disclosure of Invention

The invention aims to provide a display terminal to reduce the risk of damage to a curved structure (hereinafter referred to as a curved portion).

In order to achieve the purpose, the invention adopts the following technical scheme:

a display terminal, comprising:

a housing having an accommodating chamber;

the rotating shaft assembly is partially arranged in the accommodating cavity and partially protrudes out of the accommodating cavity;

the flexible screen is wound on the rotating shaft assembly to form a hidden area positioned in the accommodating cavity and a display area positioned outside the accommodating cavity, the display area comprises a display part and a curved surface part wound on the rotating shaft assembly, and the hidden area comprises an extending part parallel to the display part;

the rotating shaft assembly comprises at least two rotating shafts, the vertical distance between the display part and the extending part is D, the arc length of the longitudinal section of the curved surface part is L, and the rotating shaft assembly is used for enabling L to be less than 1/4 pi D.

Preferably, the central axes of the at least two shafts are parallel.

Preferably, the rotating shafts are rotatably arranged in the accommodating cavity, and a gap is arranged between every two adjacent rotating shafts.

Preferably, the at least two rotating shafts are sequentially arranged along the thickness direction of the casing.

Preferably, the rotating shaft part at the outermost side is exposed out of the casing, the diameter of the rotating shaft at the outermost side is D1, the arc length of the longitudinal section of the rotating shaft exposed out of the casing is L1, and L1 is not more than 1/2 pi D1.

Preferably, the number of the rotating shafts is not less than three, and the central axes of the rotating shafts are located on the same arc surface.

Preferably, at least three rotating shafts are uniformly arranged along the same cambered surface.

Preferably, at least three of the rotating shafts are divided into a first rotating shaft group and a second rotating shaft group which are provided with intervals in the thickness direction of the casing, the flexible screen is arranged around the first rotating shaft group and the second rotating shaft group, the first rotating shaft group is arranged in the accommodating cavity, and the flexible screen forms the curved surface part around the second rotating shaft group.

Preferably, the display terminal further comprises a connecting frame, and the rotating shaft assembly is connected to the casing through the connecting frame.

Preferably, the connecting frame comprises first connecting rods and second connecting rods, the first connecting rods are connected with the rotating shafts in a one-to-one correspondence mode, and two adjacent first connecting rods are connected through the second connecting rods.

The invention has the beneficial effects that:

on the premise of not changing the thickness of the existing display terminal and the distance between the display part and the extension part, the arc length L of the longitudinal section of the curved surface part can be less than 1/4 pi D through the rotating shaft assembly, namely compared with the situation that a flexible screen bypasses a rotating shaft in the prior art, and the arc length L 'of the longitudinal section of the curved surface structure in the prior art is not equal to 1/4 pi D', the rotating shaft assembly can reduce the area of the curved surface part, further reduce the probability that the curved surface part is collided when the display terminal falls, and reduce the risk of damage of the curved surface part.

Drawings

Fig. 1 is a schematic view of a part of a sliding mobile phone in the prior art;

fig. 2 is a schematic structural diagram of a display terminal according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a connection between the rotating shaft assembly and the connecting frame according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a display terminal according to a second embodiment of the present invention;

fig. 5 is a schematic structural view illustrating a connection between the rotating shaft assembly and the connecting frame according to a second embodiment of the present invention;

fig. 6 is a schematic structural view illustrating a connection between the rotating shaft assembly and the connecting frame according to a third embodiment of the present invention.

In the figure:

1', a shell; 2', a rotating shaft; 3', a flexible screen; 31', a bent structure;

1. a housing; 11. an accommodating chamber; 12. a base plate; 13. a side plate;

2. a rotating shaft assembly; 21. a rotating shaft; 22. a first shaft group; 23. a second rotating shaft group;

3. a connecting frame; 31. a first connecting rod; 32. a second connecting rod;

4. a flexible screen; 41. a display unit; 42. an extension portion; 43. a curved surface portion.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the present invention, the directional terms such as "upper", "lower", "left", "right", "inner" and "outer" are used for easy understanding without making a contrary explanation, and thus do not limit the scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

The embodiment provides a display terminal, which can be a mobile phone, a television, a notebook computer or a tablet computer and other terminal products with a display function. In this embodiment, the size of the display terminal can be continuously changed by the display terminal, so as to meet the use requirements of users in different use scenes.

As shown in fig. 2, the display terminal includes a housing 1, a rotating shaft assembly 2 and a flexible screen 4, wherein the housing 1 has an accommodating cavity 11, and the rotating shaft assembly 2 is partially disposed in the accommodating cavity 11 and partially protrudes from the accommodating cavity 11. The flexible screen 4 is wound on the rotating shaft assembly 2 to form a hidden area positioned in the accommodating cavity 11 and a display area positioned outside the accommodating cavity 11. The display area can display content for a user, namely the user can see the display area, and the display area comprises a display part 41 and a curved surface part 43 arranged on the rotating shaft component 2 in a winding mode. The hidden area is located in the accommodating cavity 11, the hidden area includes an extending portion 42 that is spaced from the display portion 41 along the thickness direction of the housing 1 and is parallel to the display portion 41, taking the direction shown in fig. 2 as an example, the display portion 41 is located on the upper side of the extending portion 42 and is parallel to the extending portion 42, the extending portion 42 of the hidden area is hidden in the accommodating cavity 11, and the user cannot see the extending portion 42. Preferably, the casing 1 includes a bottom plate 12 and a side plate 13 to enclose the above-mentioned accommodating chamber 11, and the extension portion 42 is located between the bottom plate 12 and the display portion 41.

In order to implement the continuous variation of the size in cooperation with the display terminal, the display terminal may further include a fixed case (not shown in the drawings), and the housing case 1 may be reciprocally slid in a first direction (as shown in the drawing, H direction, one of a width direction and a length direction of the display terminal) with respect to the fixed case, thereby continuously varying the size of the display terminal in the first direction. Specifically, the rotating shaft assembly 2 is arranged at one end of the accommodating cavity 11 far away from the fixed shell, after the flexible screen 4 bypasses the rotating shaft assembly 2, one end of the display part 41 is connected with the fixed shell, and one end of the extending part 42 is connected with the machine shell 1.

When the size of the display terminal needs to be increased, the machine shell 1 slides along the first direction, the flexible screen 4 slides relative to the rotating shaft 21, the size of the display area along the first direction is gradually increased, and the size of the hidden area along the second direction is gradually decreased; conversely, when the size of the display terminal needs to be reduced, the housing 1 slides along the opposite direction, the size of the display area along the first direction gradually decreases, and the size of the hidden area along the second direction gradually increases.

Preferably, in order to drive the casing 1 to slide, a driving mechanism may be further provided between the casing 1 and the fixed casing to drive the casing 1 to slide in the first direction.

In other optional embodiments, the display terminal may further include no fixing case and no driving mechanism, and in this case, the size of the display terminal cannot be adjusted, and the display terminal is a display product whose side portion is a curved surface structure.

In order to reduce the risk of damage to the flexible screen 4, the display portion 41 is spaced from the extension portion 42 by a vertical distance D (i.e., a distance in the thickness direction of the housing 1), the curved surface portion 43 has a longitudinal section (it is understood that the longitudinal section is a section perpendicular to the axis of the rotary shaft assembly 2) with an arc length L, and the rotary shaft assembly 2 is configured such that L < 1/4 pi D. It is obvious that π D is the circumference of a circle with a diameter D, i.e., 1/4 π D is the arc length L' of the longitudinal section of the prior art curved structure. The curved surface portion 43 may have another arc-shaped configuration such as a circular arc or a part of an ellipse in its longitudinal section.

On the premise of not changing the thickness of the existing display terminal and the distance between the display part 41 and the extension part 42 (i.e. the distance between the display part 41 and the extension part 42 along the thickness direction of the housing 1), the rotating shaft assembly 2 can make the arc length L of the longitudinal section of the curved surface part 43 less than 1/4 pi D, i.e. compared with the prior art in which the flexible screen 4 bypasses a rotating shaft, and the arc length L '= 1/4 pi D' of the longitudinal section of the curved surface structure in the prior art, the rotating shaft assembly 2 in the embodiment can reduce the area of the curved surface part 43, thereby reducing the probability that the curved surface part 43 is collided when the display terminal falls, and reducing the risk of damage to the curved surface part 43.

Specifically, the rotating shaft assembly 2 includes at least two rotating shafts 21 (the axial direction of the rotating shafts 21 is perpendicular to the first direction), and the central axes of the at least two rotating shafts 21 are parallel so that the flexible screen 4 can slide around the rotating shafts 21.

As shown in fig. 2, in the present embodiment, the number of the rotating shafts 21 in the rotating shaft assembly 2 is two, two rotating shafts 21 are provided in the thickness direction of the housing 1, and the flexible screen 4 forms the curved surface portion 43 around the rotating shaft 21 located on the outer side.

In order to reduce the area of the flexible screen 4 exposed outside the casing 1 in the thickness direction as much as possible, only the rotating shaft 21 located at the outer side is partially exposed outside the casing 1. Meanwhile, in order to ensure that the user can view any position of the curved surface part 43, the arc length of the longitudinal section of the rotating shaft 21 exposed out of the casing 1 is L1, and L1 is less than or equal to 1/2 pi D1. As shown in fig. 2, it can be understood that the diameter of the curved surface portion 43 is equal to the diameter of the rotation shaft 21 located on the outer side, and thus the arc length L = L1/2 ≦ 1/4 π D1 for the longitudinal and transverse cross-sections of the curved surface portion 43, and L < 1/4 π D since the diameter of the rotation shaft 21 located on the outer side is D1 < D.

Further, the arc length L1=1/2 pi D1 of the longitudinal section of the rotating shaft 21 exposed outside the housing 1, and the arc length L = L1/2=1/4 pi D1 of the longitudinal and transverse sections of the curved surface portion 43, so that the ratio of the area of the display content of the display terminal is maximized on the premise that the width of the housing 1 is constant.

In other alternative embodiments, the number of the rotating shafts 21 in the rotating shaft assembly 2 may be greater than two, and a plurality of the rotating shafts 21 are sequentially arranged in the thickness direction of the casing 1, and the specific number of the rotating shafts 21 is not limited herein.

In order to reduce the friction between the flexible screen 4 and the rotating shaft 21 and reduce the wear of the flexible screen 4, it is preferable that the rotating shaft 21 is rotatably disposed in the accommodating cavity 11, and the rolling friction is formed between the flexible screen 4 and the rotating shaft 21. Further, a gap is provided between two adjacent rotating shafts 21 to allow each rotating shaft 21 to roll smoothly.

As shown in fig. 3, in order to facilitate the connection of the plurality of rotating shaft assemblies 2 to the casing 1, the display terminal further includes a connecting frame 3, and the rotating shaft assemblies 2 are connected to the casing 1 through the connecting frame 3. Specifically, the connecting frame 3 includes two first connecting rods 31 and a second connecting rod 32, wherein one of the rotating shafts 21 is rotatably connected to one of the first connecting rods 31, ends of the two first connecting rods 31 are connected by the second connecting rod 32, and the second connecting rod 32 is connected to the housing 1. The connecting frame 3 connects the plurality of shafts 21 into an integral structure to drive the first shaft assembly 22 and the component 2 to slide synchronously when the casing 1 slides.

Example two

As shown in fig. 4, the display terminal of the second embodiment is substantially the same as the display terminal of the first embodiment, and the difference between the two embodiments is that the arrangement of the rotating shafts 21 of the rotating shaft assembly 2 is different, in this embodiment, the number of the rotating shafts 21 is not less than three, the central axes of the plurality of rotating shafts 21 are located on the same arc surface, and the flexible screen 4 forms the curved surface portion 43 by bypassing the plurality of rotating shafts 21. The central axes of the rotating shafts are distributed on the same cambered surface, and the curvature of the cambered surface part 43 can be regulated and controlled by changing the curvature of the cambered surface, so that the side part of the display terminal forms adjustable and controllable buffering transition.

Preferably, at least three rotating shafts 21 are uniformly arranged along the same arc surface, so that the flexible screen 4 bypassing the rotating shaft assembly 2 is uniformly stressed and is smooth everywhere.

As shown in fig. 4, the present embodiment is described by taking an example in which the curved surface portion 43 formed after the flexible screen 4 passes around the plurality of rotation shafts 21 is a part of an ellipse, the major axis a = D/2 of the ellipse, the minor axis b < a = D/2 of the ellipse, the vertex corresponding to the major axis of the ellipse is tangent to the display portion 41, the vertex corresponding to the minor axis is tangent to the housing 1, and the arc length L = pi b/2+ (a-b) = pi b/2+ (D/2-b), in a longitudinal section of the curved surface portion 43, wherein L-1/4 pi D = pi b/2+ (D/2-b) -1/4 pi D = (2 b +2D-4 pi D)/4 = [ (2 pi b-4 b) + (2D-pi D) ]/4= [2b (pi-2) -D (pi-2) ]/4 [ (2 b-D) (pi-D) ]/4, and since 2b-D < 0, pi-2D = > 0, pi-2 > 0, < pi-1/4 = L/4, i.e.

In other alternative embodiments, the arc surface may also be an arc surface, and the specific shape and size of the arc surface are not limited in this embodiment, as long as the arc length L of the longitudinal section of the curved surface portion 43 is less than 1/4 pi D.

As shown in fig. 5, a plurality of rotation shafts 21 are respectively connected to the connection frames 3. The connecting frame 3 comprises a plurality of first connecting rods 31 and a plurality of second connecting rods 32, wherein one rotating shaft 21 is rotatably connected to one first connecting rod 31, the end parts of any two adjacent first connecting rods 31 are connected through one second connecting rod 32, and the second connecting rods 32 are connected to the machine shell 1.

EXAMPLE III

As shown in fig. 6, the display terminal in the third embodiment is substantially the same as the second embodiment, and the difference between the two embodiments is that the arrangement of the rotating shafts 21 of the rotating shaft assembly 2 is different, in the present embodiment, at least three rotating shafts 21 are divided into a first rotating shaft group 22 and a second rotating shaft group 23 which are provided with a distance in the thickness direction of the housing 1, the flexible screen 4 is disposed around the first rotating shaft group 22 and the second rotating shaft group 23, the first rotating shaft group 22 and the second rotating shaft group 23 jointly support the flexible screen 4, the distance between the display portion 41 and the extending portion 42 is ensured, and the flexible screen 4 between the first rotating shaft group 22 and the second rotating shaft group 23 is suspended. The first rotating shaft group 22 is arranged in the accommodating cavity 11, the flexible screen 4 surrounds the second rotating shaft group 23 to form a curved surface part 43, and the arrangement of the rotating shafts 21 in the first rotating shaft group 22 determines the arc length L of the longitudinal section of the curved surface part 43.

The number of the rotating shafts 21 in the first rotating shaft group 22 and the second rotating shaft group 23 may be one, two or more, which is not limited in this embodiment, and the arrangement of the rotating shafts 21 in the second rotating shaft group 23 and the second rotating shaft group 23 is also not limited as long as the arc length L of the longitudinal section of the curved surface portion 43 is less than 1/4 pi D.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A display terminal, comprising:

a housing (1) having an accommodation chamber (11);

the rotating shaft assembly (2) is partially arranged in the accommodating cavity (11) and partially protrudes out of the accommodating cavity (11);

the flexible screen (4) is wound on the rotating shaft assembly (2) to form a hidden area positioned in the accommodating cavity (11) and a display area positioned outside the accommodating cavity (11), the display area comprises a display part (41) and a curved surface part (43) wound on the rotating shaft assembly (2), and the hidden area comprises an extending part (42) parallel to the display part (41);

the rotating shaft assembly (2) comprises at least two rotating shafts (21), the central axes of the at least two rotating shafts (21) are parallel, the at least two rotating shafts (21) are sequentially arranged in the thickness direction of the casing (1), the vertical distance between the display part (41) and the extension part (42) is D, the arc length of the longitudinal section of the curved surface part (43) is L, and the rotating shaft assembly (2) is used for enabling L to be less than 1/4 pi D.

2. The display terminal according to claim 1, wherein the rotation shafts (21) are rotatably disposed in the accommodating cavity (11), and a gap is disposed between two adjacent rotation shafts (21).

3. The display terminal according to claim 1, wherein the outermost rotating shaft (21) is partially exposed out of the housing (1), the outermost rotating shaft (21) has a diameter D1, an arc length of a longitudinal section of the outermost rotating shaft (21) is L1, and L1 is less than or equal to 1/2 pi D1.

4. The display terminal according to claim 1, wherein the number of the rotating shafts (21) is not less than three, and the central axes of a plurality of the rotating shafts (21) are located on the same arc surface.

5. A display terminal according to claim 4, characterised in that at least three of said shafts (21) are arranged uniformly along said same curved surface.

6. The display terminal according to claim 1, wherein at least three of the rotation shafts (21) are divided into a first rotation shaft group (22) and a second rotation shaft group (23) provided with a space in a thickness direction of the housing (1), the flexible screen (4) is provided around the first rotation shaft group (22) and the second rotation shaft group (23), the first rotation shaft group (22) is provided in the accommodation chamber (11), and the flexible screen (4) forms the curved surface portion (43) around the second rotation shaft group (23).

7. The display terminal according to any of claims 1-6, wherein the display terminal further comprises a connecting frame (3), and the rotating shaft assembly (2) is connected to the housing (1) through the connecting frame (3).

8. The display terminal according to claim 7, wherein the connecting frame (3) comprises a first connecting rod (31) and a second connecting rod (32), the first connecting rods (31) are connected with the rotating shafts (21) in a one-to-one correspondence, and two adjacent first connecting rods (31) are connected through the second connecting rod (32).