CN114582233A

CN114582233A - Guide rail follow-up bending mechanism

Info

Publication number: CN114582233A
Application number: CN202210203038.3A
Authority: CN
Inventors: 周晧煜; 陈风; 蒋承忠
Original assignee: Anhui Fansheng Display Technology Co ltd
Current assignee: Anhui Fansheng Display Technology Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-06-03
Anticipated expiration: 2042-03-02
Also published as: CN114582233B

Abstract

The invention provides a guide rail follow-up bending mechanism, which comprises: a first translation track; a second translation rail disposed adjacent to the first translation rail, the second translation rail being rotatable along a rotation axis; the first bearing plane is connected with the first translation track in a sliding way; the first bearing plane and the second bearing plane respectively adsorb and bear the non-bending area of the flexible panel, and the first bearing plane and the second bearing plane carry out relative motion so as to unfold or bend the bending area of the flexible panel; the turnover assembly is used for overturning the first translation track and/or the first translation track, and in the overturning process, the first bearing plane and the second bearing plane respectively slide based on the first translation track and the second translation track so as to disperse extra tension and compression stress of turnover.

Description

Guide rail follow-up bending mechanism

Technical Field

The invention relates to the field of curved surface display panel manufacturing equipment, in particular to a guide rail follow-up bending mechanism.

Background

The curved screen is a display screen made of flexible plastic and is mainly realized by an OLED panel. Compared with a straight screen, the curved screen has better elasticity and is not easy to break. Curved surface screen uses non-rigid glass as the base, and the elasticity is better, is difficult for broken. The abrasion probability of the screen is reduced, and particularly the screen of the mobile phone with higher touch rate is reduced. When the curved-surface screen is used for a mobile phone, the overall curved design of the curved-surface screen is beneficial to holding, the curved-surface screen is better attached to the palm radian, the distance of a thumb touching the screen when the curved-surface screen is operated by a single hand is reduced, and the experience of transverse screen-crossing operation under a large-size screen is theoretically promoted; the subtle curves allow the phone holder to have better privacy of information, such as the person sitting beside not being able to see what is displayed on the phone screen. The screen can be made thinner, light-weight, and low-power. The curved screen increases the angle of visibility, so the effect is good even when viewed at an off-center angle. The curved surface is not only subversion on of the appearance form of the television, but also remarkable improvement of the watching comfort level, and is a great step of the development of the appearance of the television. And simultaneously, the method is a test and challenge for the manufacturer technology.

Since the flexible display panel has the characteristics of thinness, lightness and flexibility, the application of the flexible display panel tends to be diversified. The flexible display panel can be folded or rolled to reduce the occupied space. In the case of the bending manner, the tension applied to the flexible display panel must be controlled, the flexible display panel itself cannot be pressed to cause permanent creases, and the flexible display panel needs to be supported over the entire surface when in use.

Therefore, a bending mechanism capable of effectively avoiding crease caused by extrusion when bending is needed.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a guide rail follow-up bending mechanism, which overcomes the difficulties in the prior art, can prevent the screen from being subjected to additional tension and pressure and stress concentration caused by non-tangency, effectively avoids crease marks and improves the overall quality of curved screen products.

The embodiment of the invention provides a guide rail follow-up bending mechanism, which comprises:

a first translation track;

a second translation rail disposed adjacent to the first translation rail, the second translation rail being rotatable along a rotation axis,

a first bearing plane slidably connected to the first translation rail;

the first bearing plane and the second bearing plane respectively adsorb and bear the non-bending area of the flexible panel, and carry out relative motion so as to unfold or bend the bending area of the flexible panel;

the first translation rail and/or the first translation rail are/is turned over, in the turning process, the first bearing plane and the second bearing plane respectively slide on the basis of the first translation rail and the second translation rail so as to disperse extra tensile and compressive stress of turning over, the rectangular parts, which are located on the two bearing planes and are not borne by the bearing planes, of the flexible panel are bending areas, and the long sides of the bending areas are parallel to the rotating shaft; the width of the short side of the bending area is pi R, and R is a preset bending radius.

Preferably, the folding assembly comprises a first folding mechanism and a second folding mechanism;

the first turnover mechanism drives the first translation track to rotate towards the second translation track based on a first rotating shaft, and meanwhile, the second turnover mechanism drives the second translation track to rotate towards the first translation track based on a second rotating shaft.

Preferably, during the overturning process, the non-bending region is driven by the bending region, and when the bending region is bent, the first bearing plane and the second bearing plane are respectively pushed and pulled along the first translation track and the second translation track so as to release the tensile and compressive stress generated by bending.

Preferably, the planar coordinate system is established on the basis of a vertical plane perpendicular to the length direction of the bending zone,

a first rotating shaft corresponding to the first bearing plane is located on a midline of the flexible panel along the horizontal direction based on a ordinate of a first projection point of the plane coordinate system, an abscissa is located on the left side of the center of the bending area, and a distance between the abscissa and the center is R;

the second rotating shaft corresponding to the second bearing plane is located on the midline of the flexible panel along the horizontal direction based on the ordinate of the second projection point of the plane coordinate system, the abscissa is located on the right side of the center of the bending area, and the distance between the abscissa and the abscissa of the center is R.

Preferably, coordinates of the long side of the bending region corresponding to the first bearing plane in the center of the projection pattern in a plane coordinate system established based on a vertical plane perpendicular to the length direction of the bending region are respectively first reference points, and an abscissa of the first projection point is located on the right side of the first reference point;

the coordinates of the center of the projection pattern of the long side of the second bearing corresponding bending region in a plane coordinate system established based on a vertical plane perpendicular to the length direction of the bending region are respectively second reference points, and the abscissa of the second projection point is located on the left side of the second reference points.

Preferably, the folding assembly comprises only a third folding mechanism;

the third turnover mechanism drives the second translation rail to rotate towards the first translation rail based on a third rotation axis.

Preferably, during the turning, the first bearing plane slides along one end of the first translation rail, which is away from the second translation rail,

the second bearing plane slides along one end of the second translation track, which is far away from the first translation track.

Preferably, the bending zone is formed by a plane coordinate system based on a vertical plane perpendicular to the length direction of the bending zone,

the abscissa of the third rotating shaft based on the third projection point of the plane coordinate system is located at the perpendicular bisector of the bending region of the flexible panel, and the distance between the ordinate and the bending region in the plane state is R.

Preferably, during the flipping process, the distance between each of the first end of the second translation track adjacent to the third projection point and the second end of the second translation track far away from the third projection point and the third projection point is kept constant.

The invention aims to provide a guide rail follow-up bending mechanism which can prevent the screen from being subjected to stress concentration caused by extra tension and pressure and non-tangency, effectively avoid crease marks and improve the overall quality of curved screen products.

Drawings

Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.

Fig. 1 is a schematic view of a first guide rail follower bending mechanism of the present invention.

Fig. 2 is a schematic view of a second guide track follower bending mechanism of the present invention.

Reference numerals

1 first bearing plane

2 non-bending region

3 first projection point

4 bending zone

5 second projection point

6 second bearing plane

7 first translation track

8 second translation track

9 third projection point

Detailed Description

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings so that those skilled in the art to which the present application pertains can easily carry out the present application. The present application may be embodied in many different forms and is not limited to the embodiments described herein.

Reference throughout this specification to "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. Furthermore, the particular features, structures, materials, or characteristics shown may be combined in any suitable manner in any one or more embodiments or examples. Moreover, the various embodiments or examples and features of the various embodiments or examples presented herein can be combined and combined by those skilled in the art without being mutually inconsistent.

Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the expressions of the present application, "plurality" means two or more unless specifically defined otherwise.

In order to clearly explain the present application, components that are not related to the description are omitted, and the same reference numerals are given to the same or similar components throughout the specification.

Throughout the specification, when a device is referred to as being "connected" to another device, this includes not only the case of being "directly connected" but also the case of being "indirectly connected" with another element interposed therebetween. In addition, when a device "includes" a certain component, unless otherwise stated, the device does not exclude other components, but may include other components.

When a device is said to be "on" another device, this may be directly on the other device, but may be accompanied by other devices in between. When a device is said to be "directly on" another device, there are no other devices in between.

Although the terms first, second, etc. may be used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface are represented. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, items, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" include plural forms as long as the words do not expressly indicate a contrary meaning. The term "comprises/comprising" when used in this specification is taken to specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but does not exclude the presence or addition of other features, regions, integers, steps, operations, elements, and/or components.

Although not defined differently, including technical and scientific terms used herein, all terms have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Terms defined in commonly used dictionaries are to be additionally interpreted as having meanings consistent with those of related art documents and the contents of the present prompts, and must not be excessively interpreted as having ideal or very formulaic meanings unless defined.

Fig. 1 is a schematic view of a first guide rail follower bending mechanism of the present invention. As shown in fig. 1, a first guide rail following bending mechanism of the present invention includes: a first translation track 7, a second translation track 8, a first bearing plane 1, a second bearing plane 6 and a turnover assembly formed by two turnover mechanisms. A second translation rail 8 is arranged adjacent to the first translation rail 7, the second translation rail 8 being rotatable along an axis of rotation. The first bearing plane 1 is slidably connected to a first translation rail 7. The second bearing plane 6 is slidably connected to the second translation rail 8, the first bearing plane 1 and the second bearing plane 6 respectively absorb and bear the non-bending area 2 of the flexible panel, and the first bearing plane 1 and the second bearing plane 6 perform relative movement to unfold or bend the bending area 4 of the flexible panel. The turnover assembly turns over the first translation rail 7 and/or the first translation rail 7, and the first bearing plane 1 and the second bearing plane 6 can freely slide based on the directions of the first translation rail 7 and the second translation rail 8. In the overturning process, the non-bending area 2 is driven by the bending area 4, and when the bending area is bent, the first bearing plane 1 and the second bearing plane 6 are respectively pushed and pulled along the first translation track 7 and the second translation track 8 so as to release the tensile and compressive stress generated by bending, so that the damage of other stresses outside the bending stress to the panel is greatly reduced, and the panel is ensured not to be easily broken in the bending process. The rectangular part of the flexible panel lying in the two bearing planes, not borne by the bearing planes, is a bending zone 4, the long side of the bending zone 4 being parallel to the rotation axis. The width of the short side of the bending zone 4 is pi R, which is a preset bending radius. The first bearing plane 1 and the second bearing plane 6 are vacuum absorbing plates, and during the matching folding movement of the vacuum absorbing plates and the double tracks, the bent object is not subjected to additional tension and pressure and stress concentration caused by non-tangency, but not limited to the above.

In this embodiment, the folding assembly includes a first folding mechanism (not shown) and a second folding mechanism (not shown). The first folding mechanism (in the V1 direction) drives the first translation rail 7 to rotate toward the second translation rail 8 based on the first rotation axis, and at the same time, the second folding mechanism (in the V2 direction) drives the second translation rail 8 to rotate toward the first translation rail 7 based on the second rotation axis. During the overturning, the first bearing plane 1 slides along the end of the first translation rail 7 facing away from the second translation rail 8, and the second bearing plane 6 slides along the end of the second translation rail 8 facing away from the first translation rail 7. Based on a plane coordinate system established by a vertical plane perpendicular to the length direction of the bending area 4, a first rotating shaft corresponding to the first bearing plane 1 is located on a midline of the flexible panel along the horizontal direction based on a vertical coordinate of a first projection point 3 of the plane coordinate system, an abscissa is located on the left side of the center of the bending area 4, and the distance from the abscissa of the center is R. The ordinate of the second pivot axis corresponding to the second support plane 6, which is based on the second projection point 5 of the planar coordinate system, is located on the midline of the flexible panel in the horizontal direction, the abscissa is located on the right side of the center of the bending region 4, and the distance from the abscissa of the center is R. The coordinates of the long side of the bending region 4 corresponding to the first bearing plane 1 in the center of the projected pattern in the plane coordinate system established based on the vertical plane perpendicular to the length direction of the bending region 4 are respectively first reference points, and the abscissa of the first projection point 3 is located on the right side of the first reference points. The coordinates of the center of the projected pattern of the long side of the second load bearing corresponding bending region 4 in the plane coordinate system established based on the vertical plane perpendicular to the length direction of the bending region 4 are respectively second reference points, and the abscissa of the second projected point 5 is located on the left side of the second reference points.

Fig. 2 is a schematic view of a second guide track follower bending mechanism of the present invention. As shown in fig. 2, a second guide rail following bending mechanism of the present invention includes: a first translation track 7, a second translation track 8, a first bearing plane 1, a second bearing plane 6 and a turnover component. A second translation rail 8 is arranged adjacent to the first translation rail 7, the second translation rail 8 being rotatable along an axis of rotation. The first bearing plane 1 is slidably connected to a first translation rail 7. The second bearing plane 6 is slidably connected to the second translation rail 8, the first bearing plane 1 and the second bearing plane 6 respectively absorb and bear the non-bending area 2 of the flexible panel, and the first bearing plane 1 and the second bearing plane 6 perform relative movement to unfold or bend the bending area 4 of the flexible panel. The folding assembly comprises only a third folding mechanism which drives the second translation rail 8 to rotate (in the direction of V3) towards the first translation rail 7 on the basis of a third rotation axis. During the overturning process, the first bearing plane 1 and the second bearing plane 6 slide respectively based on the first translation rail 7 and the second translation rail 8 to disperse the folding extra tensile and compression stress, the rectangular part of the flexible panel, which is located on the two bearing planes and is not borne by the bearing planes, is the bending area 4, and the long side of the bending area 4 is parallel to the rotating shaft. The extra folding and pressing stress in the invention refers to other stresses besides bending stress, and the part of the stress can damage the panel product, and is desirably reduced or eliminated as much as possible in the bending process. The width of the short side of the bending zone 4 is pi R, which is a preset bending radius. The first bearing plane 1 and the second bearing plane 6 are vacuum absorbing plates, and during the matching folding movement of the vacuum absorbing plates and the double tracks, the bent object is not subjected to additional tension and pressure and stress concentration caused by non-tangency, but not limited to the above.

In this embodiment, during the turning process, the first bearing plane 1 slides along one end of the first translation rail 7 away from the second translation rail 8, and the second bearing plane 6 slides along one end of the second translation rail 8 away from the first translation rail 7. And a plane coordinate system established on the basis of a vertical plane perpendicular to the length direction of the bending region 4, wherein the abscissa of the third projection point 9 of the third rotation axis based on the plane coordinate system is positioned on the perpendicular bisector of the bending region 4 of the flexible panel, and the distance between the ordinate and the bending region in a plane state is R. During the turning process, the distance G between the first end of the second translation track 8 close to the third projection point 9 and the third projection point 9 is kept constant, and simultaneously, the distance H between the second end far away from the third projection point 9 and the third projection point 9 is also kept constant.

In summary, the present invention is directed to provide a guide rail follow-up bending mechanism, which can prevent the screen from being subjected to stress concentration caused by extra tension and pressure and non-tangency, effectively avoid the generation of creases, and improve the overall quality of curved screen products.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. The utility model provides a guide rail follow-up bending mechanism which characterized in that includes:

a first translation track (7);

a second translation track (8) arranged adjacent to the first translation track (7), the second translation track (8) being rotatable along a rotation axis;

-a first bearing plane (1) slidably connected to said first translation track (7);

a second bearing plane (6) slidably connected to the second translation rail (8), wherein the first bearing plane (1) and the second bearing plane (6) respectively adsorb and bear the non-bending area (2) of the flexible panel, and the first bearing plane (1) and the second bearing plane (6) perform relative movement to unfold or bend the bending area (4) of the flexible panel;

at least one turnover assembly, wherein the first translation track (7) and/or the first translation track (7) are/is turned over, during the turning, the first bearing plane (1) and the second bearing plane (6) respectively slide based on the first translation track (7) and the second translation track (8) so as to disperse the additional tension and compression stress of the turnover, the rectangular part of the flexible panel, which is located in the two bearing planes and is not borne by the bearing planes, is a bending area (4), and the long edge of the bending area (4) is parallel to the rotating shaft; the width of the short side of the bending area (4) is pi R, and R is a preset bending radius.

2. The guide track follower bending mechanism of claim 1, wherein the fold-over assembly comprises a first fold-over mechanism and a second fold-over mechanism;

the first turnover mechanism drives the first translation track (7) to rotate towards the second translation track (8) based on a first rotating shaft, and meanwhile, the second turnover mechanism drives the second translation track (8) to rotate towards the first translation track (7) based on a second rotating shaft.

3. Guide rail follow-up bending mechanism according to claim 2, wherein the non-bending area (2) is driven by the bending area (4) during the turning process, and when the bending area is bent, the first bearing plane (1) and the second bearing plane (6) are respectively pushed and pulled along the first translation track (7) and the second translation track (8) to release the tensile and compressive stress generated by bending.

4. Guide-rail follow-up bending mechanism according to claim 2, characterized in that a planar coordinate system is established on the basis of a vertical plane perpendicular to the length direction of the bending zone (4),

a first rotating shaft corresponding to the first bearing plane (1) is located on a midline of the flexible panel in the horizontal direction based on a vertical coordinate of a first projection point (3) of the plane coordinate system, a horizontal coordinate is located on the left side of the center of the bending area (4), and the distance from the horizontal coordinate of the center is R;

the second rotating shaft corresponding to the second bearing plane (6) is located on the midline of the flexible panel along the horizontal direction based on the ordinate of the second projection point (5) of the plane coordinate system, the abscissa is located on the right side of the center of the bending area (4), and the distance from the abscissa of the center is R.

5. The guide rail follow-up bending mechanism according to claim 4, wherein the coordinates of the center of the projected pattern of the long side of the bending area (4) corresponding to the first bearing plane (1) in a plane coordinate system established based on a vertical plane perpendicular to the length direction of the bending area (4) are respectively first reference points, and the abscissa of the first projection point (3) is located at the right side of the first reference points;

the coordinates of the center of a projection pattern of the long side of the second bearing corresponding bending area (4) in a plane coordinate system established on the basis of a vertical plane perpendicular to the length direction of the bending area (4) are respectively second reference points, and the abscissa of the second projection point (5) is positioned on the left side of the second reference points.

6. The guide track follower bending mechanism of claim 1, wherein the fold-over assembly includes only a third fold-over mechanism;

the third turnover mechanism drives the second translation track (8) to rotate towards the first translation track (7) based on a third rotation axis.

7. Guide rail follower bending mechanism according to claim 6, wherein the first bearing plane (1) slides along an end of the first translation rail (7) facing away from the second translation rail (8) during tipping,

the second bearing plane (6) slides along an end of the second translation rail (8) facing away from the first translation rail (7).

8. Guide-rail follow-up bending mechanism according to claim 6, characterized in that a planar coordinate system is established on the basis of a vertical plane perpendicular to the length direction of the bending zone (4),

the abscissa of the third rotating shaft based on a third projection point (9) of the plane coordinate system is located on a perpendicular bisector of the bending area (4) of the flexible panel, and the distance between the ordinate and the bending area in a plane state is R.

9. Guide rail follow-up bending mechanism according to claim 8, wherein the distance between the first end of the second translation rail (8) adjacent to the third projection point (9) and the second end of the second translation rail remote from the third projection point (9) and the third projection point (9) is constant during the turning process.