CN113236656A

CN113236656A - Flexible display

Info

Publication number: CN113236656A
Application number: CN202110341418.9A
Authority: CN
Inventors: 葛新; 白庆春; 师炜
Original assignee: Xian Thermal Power Research Institute Co Ltd
Current assignee: Xian Thermal Power Research Institute Co Ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-08-10
Anticipated expiration: 2041-03-30
Also published as: CN113236656B

Abstract

The present invention relates to a bendable display, comprising: a flexible screen, two rigid side frames and two bendable frames, wherein the two rigid side frames are wrapped around the left and right sides of the flexible screen; The two bendable frames are wrapped around the upper and lower sides of the flexible screen, and can drive the upper and lower sides of the flexible screen to bend a preset arc according to the circumferential direction. The upper and lower frames of the display provided by the present invention are of a bendable structure, and the bendable structure is simple and easy to manufacture, the user can flexibly adjust the curvature of the display screen according to requirements, and the operation is simple.

Description

Flexible display

Technical Field

The present invention relates to a display, and more particularly, to a flexible display.

Background

With the development of display technology, curved display screens (also called curved screens) have gradually come into people's lives, especially in the aspects of games and video, image playing, and the like. Compared with a plane screen display, the curved screen display has wider visual angle effect and is easier for a viewer to have immersive experience. The curved-surface screen display can optimize the depth of field, so that a subtle naked-eye 3D effect is generated, the played video and images have better stereoscopic impression, better telepresence and substitution impression can be brought, and the effect is more shocking compared with a flat screen. The curvature of the curved-surface screen display in the prior art is determined when the curved-surface screen display leaves a factory and cannot be changed by a user, so that the requirement of the user for changing the curvature of the display cannot be met.

Disclosure of Invention

In view of the technical problems in the prior art, the present invention provides a flexible display, which can be changed in curvature by a user according to the needs.

In order to solve the above technical problem, the present invention provides a flexible display, comprising: the flexible screen comprises a flexible screen, two rigid side frames and two bendable frames, wherein the two rigid side frames are wrapped on the left side edge and the right side edge of the flexible screen; the two bendable frames are wrapped on the upper side edge and the lower side edge of the flexible screen and can drive the upper side edge and the lower side edge of the flexible screen to bend according to the circumferential direction to preset radians; the bendable frame comprises a bottom edge and two side edges; the bottom edge comprises a chain layer and a coating layer, wherein the chain layer and the coating layer are formed by sequentially connecting a plurality of chain links with limiting structures, and the chain layer is abutted against the end part of the flexible screen; the coating layer is coated outside the chain layer and connected with the two side edges; the two side edges are respectively attached to the front surface and the back surface of the flexible screen; wherein the cover and the two sides are made of a flexible material.

Preferably, the link comprises a rectangular link body and mounting portions at both ends; the thickness of the mounting part is smaller than that of the body; the outer end face of the mounting part is connected with two long edges of the body to form a first arc with the radius larger than or equal to half of the short edge of the body, the inner end face of the mounting part is connected with the body to form a second arc, the radius of the second arc is larger than that of the first arc, and the centers of the two arcs are on the same straight line; the center of installation department sets up the mounting hole, and two adjacent chain links pass through the round pin axle the mounting hole is fixed.

Preferably, the inner end surface of the mounting part is connected with the body to form two second arcs, wherein the radius of the second arc far away from the display surface of the flexible screen is equal to the radius of the first arc; the radius of the second arc close to the display surface of the flexible screen is larger than that of the first arc.

Preferably, a first arc-shaped sliding block/a second arc-shaped sliding groove is arranged on the mounting surface of the mounting part close to the outer end surface, and a first arc-shaped sliding groove/a second arc-shaped sliding block is arranged on the mounting surface close to the inner end surface; the arc length of the first arc-shaped sliding block and the arc length of the second arc-shaped sliding block are respectively smaller than the length of the first arc-shaped sliding groove and the length of the second arc-shaped sliding groove, and the first arc-shaped sliding block, the second arc-shaped sliding groove, the first arc-shaped sliding groove and the second arc-shaped sliding groove are located at the same arc position with the installation part as a central point.

Preferably, the side surface of the mounting hole is provided with a coaxial third arc-shaped sliding groove, a corresponding third arc-shaped sliding block is arranged on the pin shaft, and the arc length of the third arc-shaped sliding block is smaller than the length of the third arc-shaped sliding groove.

Preferably, the link comprises a rectangular link body and mounting portions at both ends; the mounting part is a circular structure with the thickness smaller than that of the body and the diameter equal to that of the short edge of the body, and the radian of a third arc formed by connecting the inner end surface of the mounting part with the body is smaller than 180 degrees; the installation part center sets up the mounting hole.

Preferably, the inner end surface of the mounting part is connected with the body to form two third arcs, wherein the radian of the third arc far away from the display surface of the flexible screen is 90 degrees; and the radian of the third arc close to the display surface of the flexible screen is less than 90 degrees.

Preferably, the mounting portions at both ends of the link body are located on the same side of the body.

Preferably, the mounting portions at the two ends of the link body are located on opposite sides of the body.

The upper frame and the lower frame of the display provided by the invention are of bendable structures, and the bendable structures are simple and easy to manufacture; the user can adjust the display screen curvature according to the demand in a flexible way, and the operation is simple and convenient.

Drawings

Preferred embodiments of the present invention will now be described in further detail with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of an external structure of a flexible display according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a resulting display of a flexible display after varying different curvatures in accordance with one embodiment of the present invention;

FIG. 3 is a schematic diagram of a partial structure of the bendable bezel according to an embodiment of the present invention;

FIG. 4 is a partially exploded view of the bendable bezel of FIG. 3;

FIG. 5 is a schematic diagram of the structure of a link according to an embodiment of the present invention;

FIG. 6 is a schematic view of a two link configuration according to one embodiment of the present invention;

FIG. 7 is a schematic view from another perspective of a two link joint according to an embodiment of the present invention;

FIG. 8 is an enlarged schematic view at A in FIG. 6;

FIG. 9 is a schematic view of one of the links of FIG. 6 rotated about the pin;

fig. 10 is an enlarged schematic view at B in fig. 9;

FIG. 11 is a schematic diagram of the construction of a link according to another embodiment of the present invention;

FIG. 12 is an enlarged view at C of FIG. 11;

FIG. 13 is a schematic view of a two link configuration according to one embodiment of the present invention;

FIG. 14 is an enlarged view at D of FIG. 13;

FIG. 15 is a schematic view of one of the links of FIG. 13 rotated about the pin;

FIG. 16 is an enlarged view at E in FIG. 15;

FIG. 17 is a schematic structural view of a link according to yet another embodiment of the present invention;

FIG. 18 is a schematic view of the configuration of the mounting holes in a link mounting portion according to one embodiment of the present invention;

FIG. 19 is a schematic structural view of a pin according to one embodiment of the present invention; and

fig. 20 is an embodiment in accordance with the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the following detailed description, reference is made to the accompanying drawings that form a part hereof and in which is shown by way of illustration specific embodiments of the application. In the drawings, like numerals describe substantially similar components throughout the different views. Various specific embodiments of the present application are described in sufficient detail below to enable those skilled in the art to practice the teachings of the present application. It is to be understood that other embodiments may be utilized and structural, logical or electrical changes may be made to the embodiments of the present application.

FIG. 1 is a schematic diagram of an external structure of a flexible display according to an embodiment of the invention. The flexible display includes a flexible screen 100, two rigid side bezels 200, and two flexible bezels 300. The two rigid side frames 200 are respectively wrapped on the left side and the right side of the flexible screen, the two bendable side frames 300 are respectively wrapped on the upper side and the lower side of the flexible screen, and the upper side and the lower side of the flexible screen can be driven to bend according to the circumferential direction to preset radians. As shown in fig. 2, the display with different curvatures can be obtained by controlling the two upper and lower flexible bezels 300 of the flexible display shown in fig. 1.

Fig. 3 and 4 are schematic structural diagrams of the bendable bezel according to an embodiment of the present invention. The bendable bezel 300 includes a bottom side 310 and two side sides 320. The bottom side 310 includes a chain layer and a covering layer 311 formed by sequentially connecting a plurality of links 312 having a spacing structure. The chain layer abuts against the end of the flexible screen 100. The coating layer 311 is coated outside the chain layer and connected to the two side edges 320. The two side edges 320 are respectively attached to the front surface and the back surface of the flexible screen 100; wherein the covering layer 311 and the two side edges 320 are made of a flexible material and have a certain ductility. Because the two upper and lower flexible frames 300 of the flexible display have the chain layer abutting against the end of the display screen, and the two adjacent links 312 can rotate, as shown by the arrow direction in the figure, the radian of the whole flexible frame 300 can be changed, so that the change of the curvature of the flexible display from small to large or from large to small can be controlled. The varying limit position of which can be determined by the limit structure of the chain layer.

Example one

FIG. 5 is a schematic diagram of the structure of a link according to one embodiment of the present invention. In the present embodiment, the link 312 includes a rectangular link body 313 and mounting portions 314a, 341b at both ends; the thickness of the

mounting parts

314a and 314b is smaller than that of the body, and a mounting hole 315 is arranged in the center of the mounting parts. The outer end face of the installation part is connected with two long edges of the body to form a first arc 316 with the radius larger than or equal to half of the short edge of the body, the inner end face of the installation part is connected with the body to form a second arc 317, the radius of the second arc 317 is larger than that of the first arc 316, and the circle centers of the two arcs are on the same straight line. As shown in fig. 6, which is a schematic view in which the left mounting portion of the right side link 312b is fitted onto the right mounting portion of the left side link 312a, fig. 7 is a view from another perspective of fig. 6, and fig. 8 is an enlarged schematic view at a in fig. 6. Because the inner end surface of the mounting portion is connected with the body to form a first arc 316 with a second arc 317 larger than the outer end surface, when the two links are embedded together, a gap d is formed between the two mounting portions, which is the rotating distance of the links. Fig. 9 is a schematic view showing one of the links rotating about the pin. When the right-side link 312B rotates around the pin, the clearance d gradually decreases, as shown in fig. 10, which is an enlarged view at B in fig. 9. When the clearance d becomes 0, the right side mounting part abuts against the mounting part, and the right side mounting part cannot rotate any more. The angle between the two links when they are rotated to the limit distance can be determined by controlling the size of the gap d.

Example two

FIG. 11 is a schematic diagram of the structure of a link according to one embodiment of the present invention. In this embodiment, the mounting portion is circular, but the arc θ of the third arc 318 formed by the inner end surface of the mounting portion contacting the body is less than 180 degrees, as shown by the dotted line, thereby forming two limit structures at the intersection of the long side of the body and the mounting portion. Fig. 12 is an enlarged view of fig. 11 at C. As can be seen in fig. 12, the mounting portion inner end surface does not circumferentially intersect the long edge of the body 313 but stops near the long edge, so that the third arc 318 formed by the attachment of the mounting portion inner end surface to the body is less than a half circle, and thus when two links are nested together, there is a gap d between the two mounting portions, which is the distance the links rotate. As shown in fig. 13, the left end mounting portion of the right side link 312b is fitted into the right side mounting portion of the left side link 312a, fig. 14 is an enlarged view of a portion D in fig. 13, and fig. 15 is a schematic view of the right side link 312b being rotated about the pin axis. Fig. 16 is a schematic view of portion E of fig. 15. When the right link 312b rotates around the pin, the gap d gradually decreases, and when the gap d becomes 0, the right mounting portion abuts against the mounting portion, and thus the right link cannot rotate any more. The angle between the two links when they are rotated to the limit distance can be determined by controlling the size of the gap d.

The above two embodiments are provided with the limiting structures at the joints of the mounting part and the two long edges of the body, so that the chain can rotate in two directions as shown by arrows in fig. 4, and the upper and lower edges of the display can be bent in two circumferential directions in the forward direction or the reverse direction. When only one limiting structure is provided, the curvature of the display can be changed in a forward or reverse circumferential direction. The forward circumference means that the center of a circle of the display bending arc is positioned on the front side of the display screen, and the reverse circumference means that the center of a circle of the display bending arc is positioned on the back side of the display screen. Referring to fig. 5, assuming that the lower edge of the current link is close to the display surface of the flexible screen and the upper edge of the link is close to the back surface of the flexible screen, the arc of the current first arc 317 close to the lower edge of the link is unchanged from that shown in fig. 5, and is a limit structure. And the radius of the other half arc of the first arc 317 of the display surface far away from the flexible screen is equal to the radius of the first arc 316, at the moment, when the two chain links are connected together, the two installation parts are closely connected on one side of the long edge far away from the display surface of the flexible screen, so that the two chain links cannot rotate towards the direction far away from the display surface, namely, the curved screen at the moment cannot continue to be reversely adjusted when being adjusted to a plane, and the arc centers of the arcs formed by the upper side and the lower side of the curved screen cannot be arranged on the back of the display screen. Similarly, only one limit structure may be provided in the structure shown in fig. 11, that is, two arcs are formed by the intersection point of the radius parallel to the long edge of the body and the third arc 318, the radian formed by the intersection point and the long edge far away from the display surface of the display screen is 45 degrees, and the radian formed by the intersection point and the long edge near to the display surface of the display screen is less than 45 degrees.

EXAMPLE III

FIG. 17 is a schematic diagram of the construction of a link according to another embodiment of the present invention. In the present embodiment, the link 312 includes a rectangular link body 313 and mounting portions 314a, 341b at both ends; the thickness of the mounting

parts

314a and 314b is smaller than that of the body, and a mounting hole 315 is arranged in the center of the mounting parts. The outer end face of the installation part is connected with two long edges of the body to form a first arc 316 with the radius larger than or equal to half of the short edge of the body, the inner end face of the installation part is connected with the body to form a second arc 317, the radius of the second arc 317 is larger than the radius 316 of the first arc, and the circle centers of the two arcs are on the same straight line. Since the radius of the second arc 317 is larger than the radius 316 of the first arc, the other links can rotate around the shaft after being inserted into the mounting portion 314 a. In order to more accurately define the limit position of rotation, a first arc-shaped slider 400 is arranged on the mounting surface close to the outer end surface of the mounting part, and a first arc-shaped sliding groove 401 is arranged on the mounting surface close to the inner end surface; the arc length of the first arc-shaped sliding block 400 is smaller than the length of the first arc-shaped sliding groove 401, and the first arc-shaped sliding block 400 and the first arc-shaped sliding groove 401 are located at the same arc position with the installation part as the central point. After the two chain links are embedded into the mounting portion, the first arc-shaped sliding block 400 of the upper mounting portion is embedded into the first arc-shaped sliding groove 401 mounted below, the first arc-shaped sliding block 400 of the lower mounting portion is embedded into the first arc-shaped sliding groove 401 mounted above, and the length of the sliding groove is slightly larger than that of the sliding block, so that the sliding block 400 can move from one end of the sliding groove 401 to the other end when rotating, the included angle between the two chain links is changed, and the sliding block 400 reaches a limit position when moving to one end face of the sliding groove 401. Through the length that the design spout is greater than the slider, can control the contained angle between two chain links, realize the change of display camber promptly.

In this embodiment, the positions of the sliding block and the sliding groove may be interchanged, that is, the position where the first arc-shaped sliding groove 401 is originally formed may be the second arc-shaped sliding block, and the position where the first arc-shaped sliding block 402 is originally formed may be the second arc-shaped sliding groove.

Example four

FIG. 18 is a schematic view of a configuration in a mounting hole in a link mounting portion according to an embodiment of the present invention. Fig. 19 is a schematic structural view of a pin according to an embodiment of the present invention. The side surface of the mounting hole 315 is provided with a coaxial third arc-shaped sliding groove 402, a corresponding third arc-shaped sliding block 501 is arranged on the pin shaft 500, and the arc length of the third arc-shaped sliding block 501 is smaller than the length of the third arc-shaped sliding groove 402. When the mounting portions of the two links are embedded together, the two links are fixed together by the pin 500, and at this time, the third arc-shaped sliding block 501 is placed in the third arc-shaped sliding groove 402, and when one link is rotated, the pin 500 drives the third arc-shaped sliding block 501 to slide in the third arc-shaped sliding groove 402. When the third arc-shaped sliding block 501 abuts against the other end of the third arc-shaped sliding groove 402, the limit position of rotation is reached, and the chain link stops rotating. The maximum angle at which the links can rotate can be determined by setting the length of the third arc runner 402 to be greater than the length of the third arc slider 501.

In the foregoing embodiment, the mounting portions at the two ends of the link body are located on opposite sides of the body, but may be located on the same side. Fig. 20 is a schematic view showing the connection of two links with the mounting portions located on the same side of the body.

The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the scope of the present invention, and therefore, all equivalent technical solutions should fall within the scope of the present invention.

Claims

1. A bendable display comprising:

flexible screen;

two rigid side frames, which are respectively wrapped around the left and right sides of the flexible screen; and

two bendable frames, which are respectively wrapped around the upper and lower sides of the flexible screen;

Wherein, the bendable frame includes a bottom edge and two side edges; the bottom edge includes a chain layer and a covering layer which are sequentially connected by a plurality of chain links with a limiting structure, and the chain layer and the The ends of the flexible screen are in contact with each other; the coating layer is coated on the outside of the chain layer and is connected with two sides; the two sides are respectively attached to the front and back surfaces of the flexible screen; Wherein, the covering layer and the two side edges are made of flexible materials.

2 . The bendable display according to claim 1 , wherein the chain link comprises a chain link body and a mounting portion at both ends; the thickness of the mounting portion is smaller than the thickness of the body; the outer end surface of the mounting portion is two long from the body The sides are connected to form a first arc with a radius greater than or equal to half of the short side of the body, the inner end face of the mounting portion is connected to the body to form a second arc, and the radius of the second arc is greater than the radius of the first arc; the mounting portion An installation hole is arranged in the center of the chain link, and two adjacent chain links are fixed through the installation hole through a pin shaft.

3 . The bendable display according to claim 2 , wherein the inner end surface of the mounting portion is connected to the body to form two second arcs, wherein the radius of the second arc away from the display surface of the flexible screen is equal to the first circle. 4 . The radius of the arc; the radius of the second arc close to the display surface of the flexible screen is larger than the radius of the first arc.

4. The bendable display according to claim 2, wherein a first arc-shaped slider/second arc-shaped chute is provided on the mounting surface of the mounting portion close to the outer end surface, and a first arc-shaped slider/second arc-shaped chute is provided on the mounting surface close to the inner end surface. An arc-shaped sliding groove/second arc-shaped sliding block; wherein the arc lengths of the first and second arc-shaped sliding blocks are respectively smaller than the lengths of the first and second arc-shaped sliding grooves, and the first and second arc-shaped sliding blocks are respectively The block, the first and the second arc-shaped chute are located on the same arc with the center of the mounting part as the center point.

5 . The bendable display according to claim 2 , wherein the side surface of the mounting hole has a coaxial third arc-shaped sliding groove, a corresponding third arc-shaped sliding block is provided on the pin shaft, and the third arc-shaped sliding groove is arranged on the pin shaft. 6 . The arc length of the slider is smaller than the length of the third arc chute; when the pin shaft is located in the mounting hole, the third arc slider is located in the third arc chute.

6 . The bendable display according to claim 1 , wherein the chain link comprises a chain link body and a mounting portion at both ends; the mounting portion is a circular structure with a thickness smaller than the thickness of the body and a diameter equal to the short side of the body, 7 . And the arc of the third arc formed by connecting the inner end face of the mounting portion with the main body is less than 180 degrees; the center of the mounting portion is provided with a mounting hole.

7. The bendable display according to claim 6, wherein the inner end surface of the mounting portion is connected to the body to form two third arcs, wherein the arc of the third arc away from the display surface of the flexible screen is 90 degrees; The arc of the third arc close to the display surface of the flexible screen is less than 90 degrees.

8. The bendable display according to any one of claims 2-7, wherein the mounting portions located at both ends of the chain link body are located on the same side of the body.

9. The bendable display according to any one of claims 2-7, wherein the mounting parts located at both ends of the chain link body are located on opposite sides of the body.