WO2023160130A1

WO2023160130A1 - Support plate, flexible display screen and electronic device

Info

Publication number: WO2023160130A1
Application number: PCT/CN2022/138359
Authority: WO
Inventors: 刘宇; 龚河卿
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-02-28
Filing date: 2022-12-12
Publication date: 2023-08-31
Also published as: CN116696926A

Abstract

A support plate, a flexible display screen and an electronic device. The support plate (30) is provided with three bending areas (31), the three bending areas (31) being sequentially arranged at intervals in the first direction, and each bending area (31) being provided with a plurality of through holes (32) in a penetrating mode and thus being in a net shape. The support plate (30) is of a flat-shaped structure and can be bent in the three bending areas (31).

Description

Support plate, flexible display and electronic equipment

This application claims the priority of the Chinese patent application with application number 2022101877852 and titled "support plate, flexible display and electronic equipment" filed on February 28, 2022, which is hereby incorporated by reference in its entirety.

technical field

The present application relates to the technical field of flexible display screens, in particular to a support plate, flexible display screens and electronic equipment.

Background technique

In current flexible display screens, the screen is usually stacked on a support plate, and the screen is supported by the support plate, and the support plate can also be deformed to meet the bending requirements of the screen. When the flexible display screen is folded like a book page, the bending area of the flexible display screen is prone to bending transitions, resulting in creases on the screen. Therefore, the water drop-shaped bending area will solve the problem of creases in the screen process. The problem, however, is that conventional support plates cannot meet the requirements for bending in a teardrop shape.

Contents of the invention

According to various embodiments of the present application, a support plate, a flexible display screen, and an electronic device are provided.

On the one hand, the present application provides a support plate, the support plate has three bending areas, the three bending areas are sequentially arranged at intervals along the first direction, and each of the bending areas is penetratingly opened with a plurality of The holes are in the shape of a net; the support plate is in the shape of a flat plate, and can be bent in the three bending areas.

On the other hand, the present application provides a flexible display screen, including a screen and a support plate, the screen is connected to the support plate, and stacked with the support plate, the support plate has three bending regions, three The two bending areas are sequentially arranged at intervals along the first direction, and each of the bending areas is provided with a plurality of through holes in a mesh shape; The bending area is all bent.

In another aspect, the present application provides an electronic device, including a flexible display screen, the flexible display screen includes a screen and a support plate, the screen is connected to the support plate, and is stacked with the support plate, the support plate The board has three bending areas, and the three bending areas are arranged at intervals in sequence along the first direction, and each of the bending areas is provided with a plurality of through holes in a mesh shape; the support plate is in the shape of a flat plate structure, and can be bent in the three bending regions.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

Fig. 2 is a schematic diagram of the flexible display screen in the electronic device shown in Fig. 1 when it is in a folded state;

Fig. 3 is a schematic structural view of the flexible display shown in Fig. 2 when it is in an unfolded state;

Fig. 4 is a schematic diagram of the area of the support plate in the flexible display shown in Fig. 3;

Fig. 5 is an enlarged schematic diagram of the structure at A in the support plate shown in Fig. 4;

FIG. 6 is an enlarged schematic diagram of the structure at point B shown in FIG. 5 .

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Preferred embodiments of the application are shown in the accompanying drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the application more thorough and comprehensive.

"Electronic equipment" as used here refers to a device capable of receiving and/or sending communication signals, including but not limited to, connected via any one or several of the following connection methods:

(1) Connection via wired lines, such as public switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection;

(2) Via wireless interface, such as cellular network, wireless local area network (Wireless Local Area Network, WLAN), digital TV network such as DVB-H network, satellite network, AM-FM broadcast transmitter.

An electronic device arranged to communicate through a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

(1) satellite phone or cellular phone;

(2) Personal Communications System (PCS) terminals that combine cellular radiotelephone and data processing, facsimile, and data communication capabilities;

(3) Radiotelephones, pagers, Internet/Intranet access, Web browsers, organizers, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

(4) Conventional laptop and/or palm-type receivers;

(5) Conventional laptop and/or palm-sized radiotelephone transceivers and the like.

In one of the embodiments, the through hole extends along a second direction perpendicular to the first direction and is elongated.

In one embodiment, the width of the through hole along the first direction is h1, 0.08mm≤h1≤0.1mm.

In one of the embodiments, the plurality of through holes in the bending region are divided into a plurality of through hole rows uniformly distributed along the first direction, and the distance between two adjacent through hole rows h2, 0.12mm≤h2≤0.15mm.

In one embodiment, the support plate is made of carbon fiber, and the thickness of the support plate is H, 0.1mm≤H≤0.15mm.

In one of the embodiments, the support plate includes a plurality of carbon fiber base layers, the plurality of carbon fiber base layers are stacked, and the fiber directions of any two adjacent carbon fiber base layers are perpendicular to each other.

In one embodiment, among the plurality of carbon fiber base layers, the fiber directions of the two carbon fiber base layers that are farthest away are consistent.

In one of the embodiments, the bending area is divided into a middle area and two edge areas, and the two edge areas are located on both sides of the middle area along the first direction; along the first direction, The denseness of the through holes in the two edge regions gradually decreases as the distance from the middle region gradually increases.

In one of the embodiments, the plurality of through-holes in the bending region are divided into a plurality of through-hole rows distributed along the first direction, and the plurality of through-hole rows in any one of the through-hole rows The holes are evenly spaced along the second direction.

In one of the embodiments, in the middle region and/or the edge region, for any two adjacent through-hole rows located in the same region, any two adjacent through-hole rows in one of the through-hole rows The through holes are spaced apart in the second direction to form spacers, and the plurality of through holes in the other through hole column correspond to the plurality of spacers in the first direction one by one.

In one of the embodiments, any one of the through holes in the other through hole row has a first midpoint in the second direction, and any of the spacers has a second midpoint in the second direction , the multiple first midpoints correspond one-to-one to the multiple second midpoints in the first direction.

In one of the embodiments, the plurality of through-hole rows are evenly distributed along the first direction, and the plurality of through-hole rows are divided into a plurality of first through-hole rows and a plurality of second through-hole rows. The first through-hole row and the second through-hole row are arranged alternately along the first direction; the two through-holes in the first through-hole row located at both ends along the second direction are arranged along the first through-hole row. extending in two directions and passing through the edge of the support plate.

In one of the embodiments, in the bending region, the plurality of through-hole columns in the middle region are evenly distributed along the first direction, and the plurality of through-hole rows along the second direction equal in length.

In one of the embodiments, the lengths of the through holes in the two edge regions are shorter than the lengths of the through holes in the middle region; along the first direction, as they gradually move away from the middle region, the two The lengths of the through holes in each of the edge regions gradually decrease.

In one of the embodiments, it is defined that the middle area of the bending area located in the middle is the first middle area, and the middle area of the two bending areas located on both sides is the second middle area; The lengths of the through holes in the second middle region are equal and smaller than the lengths of the through holes in the first middle region.

As shown in FIG. 1 to FIG. 3 , the present application protects a flexible display screen 10 . The flexible display screen 10 includes a screen 20 and a support plate 30 , and the screen 20 is connected to the support plate 30 and stacked with the support plate 30 . It can be understood that the screen 20 has a display surface (not shown in the figure) for displaying, and the support plate 30 is connected to the side of the screen 20 away from the display surface to support the screen 20 . The support plate 30 can be bent according to the screen 20 , so that the flexible display screen 10 has the ability to bend, and then the flexible display screen 10 can be applied in the foldable electronic device 40 . The electronic device 40 may be, but not limited to, an electronic device 40 such as a mobile phone or a tablet computer, or a portable electronic device 40 such as a smart watch or an electronic reader. In the implementation manner of this application, a mobile phone is taken as an example for description.

The electronic device 40 includes a flexible display 10 and a casing 50 , and the flexible display 10 is disposed on the casing 50 . The casing 50 includes a folding mechanism 51 and two casings 52 , the folding mechanism 51 is connected between the two casings 52 to connect the two casings 52 together. With the unfolding or folding of the folding mechanism 51 , the two casings 52 move relative to each other, so that the flexible display screen 10 is folded or unfolded.

Specifically, the casing 52 is a hollow structure, and the electronic device 40 may further include a circuit board (not shown in the figure) and a battery (not shown in the figure), and both the circuit board and the battery may be disposed inside the casing 52 . The circuit board may integrate a processor, a power management module, a storage unit, a baseband chip, and the like of the electronic device 40 . The screen 20 in the flexible display screen 10 is communicatively connected with the circuit board, and the battery can supply power for the screen 20 and the electronic components on the circuit board. Of course, the electronic device 40 may also include a camera module (not shown in the figure), the camera module is connected to the circuit board in communication, and the battery can supply power to the camera module.

Specifically, in this application, the flexible display screen 10 has a bending area 11 and two planar areas 12 , and the two planar areas 12 are respectively located on opposite sides of the bending area 11 . The two planar areas 12 are respectively provided on the two housings 52 , and the bending area 11 is provided on the folding mechanism 51 . In this way, when the folding mechanism 51 is in the folded state, the two shells 52 are stacked, or it can be understood that when the folding mechanism 51 is in the folded state, the two shells 52 can be regarded as two pages stacked together Book paper, so the flexible display 10 is folded between the two casings 52 , at this time, the entire casing 50 can protect the flexible display 10 . When the flexible display screen 10 is folded, its two planar regions 12 are roughly attached together, and the bending region 11 is bent into a water drop shape. In this way, the water drop-shaped bending region 11 has a larger bending radius, Therefore, creases in overfolding can be avoided. When the flexible display screen 10 is unfolded and is in the expanded state, the two planar regions 12 and the bending region 11 are coplanar and used for display.

Therefore, the part of the support plate 30 corresponding to the bending area 11 to be protected in the present application needs to be able to be bent into a water drop shape more naturally.

1 to 5, specifically, the support plate 30 has three bending regions 31, the three bending regions 31 are sequentially arranged at intervals along the first direction, and each bending region 31 is penetratingly opened with a plurality of channels. The holes 32 are in the shape of a mesh. The support plate 30 has a planar structure and can be bent in the three bending areas 31 . It can be understood that by opening the through hole 32 , the rigidity of the bending area 31 can be reduced, making it easier to bend and deform than other areas without the through hole 32 .

The three bending regions 31 are arranged at intervals along the first direction. Therefore, an area without a through hole 32 is formed between two adjacent bending areas 31, and this area is defined as a connecting region 33. Since the two connecting regions 33 are not The through hole 32 is opened so that the rigidity is relatively high, and it is not easy to be bent. Moreover, when the flexible display screen 10 is connected to the casing 50 , both connection areas 33 are connected to the folding mechanism 51 . Specifically, the folding mechanism 51 has two symmetrically arranged limiting plates 511 , and in the folded state, the two limiting plates 511 are arranged obliquely relative to each other, and the two connecting areas 33 are respectively glued to the two limiting plates 511 . Further, in the present application, the two bending regions 31 located on both sides are symmetrically arranged on both sides of the bending region 31 located in the middle with respect to the symmetry axis M-M. As for the bending region 31 located in the middle, it is also arranged axisymmetrically with respect to the axis of symmetry M-M. The whole formed by the three bending areas 31 and the two connecting areas 33 corresponds to the bending area 11 of the flexible display screen 10 .

In addition, the support plate 30 has a part corresponding to the planar area 12, and this part is defined as a flattened area 34, then the entire support plate 30 along the first direction is the flattened area 34-bending area 31-connecting area 33-bending Area 31 -connection area 33 -bending area 31 -flattening area 34 . When the flexible display screen 10 is connected to the casing 50 , the two flattened areas 34 are connected to the two casings 52 in a one-to-one correspondence.

Therefore, when the flexible display screen 10 is folded, the bending area 31 in the middle can be bent to form a drop-shaped bottom, and the two connecting areas 33 located on both sides thereof can be used to connect with the folding mechanism 51, and in the corresponding A smooth transition is formed between two adjacent bending areas 31, and the two bending areas 31 on both sides can be bent to form a smooth transition from the connecting area 33 to the flattening area 34. In this way, the support plate 30 can not only It satisfies the requirement that the flexible display screen 10 is bent to form a water drop shape, and, when the flexible display screen 10 is in a folded state, the support plate 30 will not abut against the screen 20 due to internal stress, thereby avoiding damage to the screen 20 .

Specifically, for the through hole 32 opened in the bending region 31 , the through hole 32 extends along the second direction perpendicular to the first direction and is elongated. 3 to 5, set the direction of the X-axis as the first direction, the direction of the Y-axis as the second direction, the direction of the Z-axis as the third direction of the support plate 30, then the screen 20 and the support plate 30 along The third direction cascades the setting. In the present application, the through holes 32 extend along the Y-axis direction, and under the action of the plurality of through holes 32 , the stiffness of the bending region 31 in the first direction is reduced and it is easier to be bent. It should be pointed out that the "length of the through hole 32" mentioned later refers to the extension length of the through hole 32 along the second direction, that is, the distance between the two points of the through hole 32 that are farthest apart along the second direction. distance.

As shown in FIG. 5 and FIG. 6 , specifically, the width of the through hole 32 along the first direction is h1, and then 0.08mm≤h1≤0.1mm. It can be understood that if the width of the through hole 32 in the first direction is too large, there will be a problem of film printing when the user touches the screen 20 , which will affect the tactile feeling and reduce the user experience. On the other hand, if the width of the through hole 32 in the first direction is too small, the processing difficulty will be increased, and the bending region 31 will be difficult to bend due to insufficient rigidity reduction of the through hole 32 to the bending region 31 . Therefore, by designing the width of the through hole 32 along the first direction, it is possible to avoid the problem of film marks on the screen 20 while the bending area 31 can meet the bending requirements. Specifically, h1 may be 0.08mm, 0.09mm, 0.1mm and other values. It should be noted that the width of the through hole 32 along the first direction specifically refers to the distance between two points of the through hole 32 that are farthest apart in the first direction.

Specifically, the plurality of through holes 32 in the bending region 31 are divided into a plurality of through hole rows 321 uniformly distributed along the first direction, and the distance between two adjacent through hole rows 321 is h2, 0.12mm≤h2≤ 0.15mm. It can be understood that if the distance between two adjacent through-hole rows 321 is too large, corners and corners will appear in the bending region 31 after bending, which will present a bending effect similar to a polygon, thereby causing the screen 20 to be over-folded and damaged. If the distance between two adjacent through-hole rows 321 is too small, the processing difficulty will be increased, and the stiffness of the bending region 31 will be too small to effectively support the screen 20, which will cause the operator to touch The screen is sunken at 20. Therefore, by designing the distance between adjacent through-hole rows 321 and making the plurality of through-hole rows 321 evenly distributed along the first direction, the bending region 31 can be guaranteed to support the screen 20 while presenting a Smoother bending effect. Specifically, h2 can be 0.12mm, 0.135mm, 0.15mm and other values.

Referring to FIG. 3 again, specifically in this application, the support plate 30 is made of carbon fiber, and the thickness of the support plate 30 is H, 0.1mm≤H≤0.15mm. It can be understood that the conventional support plate 30 is made of steel. Since the density of the steel material is higher than that of carbon fiber, the weight of the support plate 30 is relatively large, which affects the weight performance of the electronic device 40. However, the support plate 30 made of carbon fiber can achieve For weight loss purposes. In addition, because the conventional support plate 30 is made of steel, the through hole 32 can only be processed by etching. Therefore, the width of the through hole 32 along the first direction must be more than 0.12mm, which will cause the user to touch the touch screen. At 20 o'clock, there was a problem of film printing, which affected the display effect. When the support plate 30 made of carbon fiber is used to process the through hole 32, a special jig is used to support the support plate 30, and the support plate 30 is fixed by vacuum adsorption, and then processed by nanosecond or picosecond laser. The high temperature vaporizes the carbon fiber, so as to obtain the through hole 32 with the required width and dimension.

Further, it can be understood that if the thickness of the support plate 30 is too large, it will take up a large space, and it is not conducive to the bending and deformation of the support plate 30, while if the thickness of the support plate 30 is too small, it will result in less effect on the screen 20. Good support. Specifically, the thickness H of the support plate 30 may be 0.1 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, 0.15 mm and other values.

Specifically, the support plate 30 includes a plurality of carbon fiber base layers, the plurality of carbon fiber base layers are stacked, and the fiber directions of any two adjacent carbon fiber base layers are perpendicular to each other. It can be understood that carbon fiber is an anisotropic material, which not only has a very low density and is very light, but also has high strength and modulus along the fiber direction, but low strength and modulus perpendicular to the fiber direction. For example, Toray T700 carbon fiber material has a strength of 2300MPa and a modulus of 130Gpa along the fiber direction, but a strength of only 80MPa and a modulus of only 9GPa perpendicular to the fiber direction. Therefore, in order to enable the support plate 30 to support the screen 20 , it is necessary to arrange a plurality of carbon fiber base layers in layers. In addition, the fiber directions of two adjacent carbon fiber base layers are perpendicular to each other, so that the effect similar to weaving mats can be presented. In addition, the fiber direction of some carbon fiber base layers is along the first direction, and the fiber direction of the rest of the carbon fiber base layers is along the second direction. In this way, the entire support plate 30 can be relatively consistent in the first direction and the second direction when the through hole 32 is not opened. The purpose of reducing the stiffness of the bending region 31 in the first direction is achieved only by opening the through hole 32 .

Further, among the plurality of carbon fiber base layers, the fiber directions of the two carbon fiber base layers that are farthest away are consistent. It can be understood that the number of carbon fiber base layers is an odd number, so that the performance of both sides of the support plate 30 can be kept consistent along the thickness direction of the support plate 30 . In one embodiment, the support plate 30 includes three carbon fiber base layers, and the fiber types of the three carbon fiber base layers can be T700, M40, and T700 in sequence, and the thicknesses of the three carbon fiber base layers are 0.03 mm, 0.09 mm, and 0.03 mm in sequence. In another embodiment, the support plate 30 includes five carbon fiber base layers, and the fiber types of the five carbon fiber base layers are all T700, and the thickness of each carbon fiber base layer is 0.03 mm. It should be pointed out that, in other embodiments, the fiber model of the carbon fiber base layer can also be T800, T1000, or M30. In addition, for a single carbon fiber base layer, its thickness is not less than 0.03mm, so according to the total thickness of the support plate 30, the thickness of each carbon fiber base layer can be freely set, and the thickness of each carbon fiber base layer in the support plate 30 can be equal or different .

Therefore, when making the support plate 30, lay multiple prepregs of carbon fiber base layers in advance to ensure that the fiber directions of two adjacent carbon fiber base layers are vertical, and then press at a high temperature above 100°C for 30 minutes, and then perform laser processing Through holes 32 are formed to form three bending regions 31 , so that the obtained support plate 30 can not only support the screen 20 but also meet the folding requirements of the flexible display screen 10 .

As shown in FIG. 4 to FIG. 5 , specifically in this application, the bending area 31 is divided into a middle area 311 and two edge areas 312 , and the two edge areas 312 are located on both sides of the middle area 311 along the first direction. Along the first direction, the denseness of the through holes 32 in the two edge regions 312 decreases gradually as it moves away from the middle region 311 . It can be understood that as the distance from the middle region 311 gradually decreases, the density of the through holes 32 in the edge region 312 gradually decreases, which will gradually increase the rigidity of the edge region 312, so that the edge region 312 is in the middle region 311 and not opened. A gradual transition of rigidity is formed between the regions of the holes 32 to avoid damage to the screen 20 due to a sudden change in stiffness resulting in bending edges and corners between the bending region 31 and the region where no through holes 32 are opened.

Further, the plurality of through holes 32 in the bending region 31 are divided into a plurality of through hole rows 321 distributed along the first direction, and the plurality of through holes 32 in any through hole row 321 are arranged along a second row perpendicular to the first direction. Evenly spaced in both directions. It can be understood that the plurality of through holes 32 in the bending region 31 can be arranged in a row to form a plurality of through hole rows 321 , and the plurality of through hole rows 321 can be evenly spaced along the first direction, or at different intervals. And for a plurality of through holes 32 in the same through hole column 321, each through hole 32 is evenly spaced along the second direction, which can be understood as maintaining an equal interval between any two adjacent through holes 32, so that it can be ensured The bending region 31 does not bend and twist in the second direction.

Specifically, in the present application, in the bending region 31 , the plurality of through hole rows 321 in the middle region 311 are evenly distributed along the first direction, and the lengths of the plurality of through holes 32 in the middle region 311 along the second direction are equal. In this way, the through holes 32 in the middle area 311 are arranged more regularly, so that the entire middle area 311 can achieve a smoother curved surface bending state when bent.

Further, in this application, the lengths of the through holes 32 in the two edge regions 312 are smaller than the lengths of the through holes 32 in the middle region 311 . Along the first direction, the lengths of the through holes 32 in the two edge regions 312 gradually decrease as they move away from the middle region 311 . It can be understood that the length of the through hole 32 in the entire middle region 311 is greater than the length of the through hole 32 in the edge region 312 . And the purpose of gradually reducing the density of the through holes 32 in the edge region 312 is achieved by gradually reducing the length of the through holes 32 . It should be pointed out that, in this application, the plurality of through-hole rows 321 in the edge region 312 are evenly distributed along the first direction, and the distance between any two adjacent through-hole rows 321 is the same as that between any two adjacent through-hole rows 321 in the middle region 311. The spacing between the through hole columns 321 is equal. In other embodiments, it should be pointed out that the density of through holes 32 in the edge region 312 is gradually reduced, which can also be achieved by gradually increasing the distance between two adjacent through hole rows 321, or, It can also be achieved by synchronously reducing the length of the through holes 32 and gradually increasing the distance between two adjacent through hole rows 321 . Therefore, in other implementations, the plurality of through hole columns 321 in the edge region 312 may not be evenly distributed along the first direction. In addition, for the edge region 312, the lengths of the plurality of through holes 32 in the through hole row 321 can be equal or unequal, or the through holes 32 of two lengths can be arranged along the second direction in a manner of alternating lengths. A via column 321 is formed.

Specifically, as shown in FIG. 5 , the middle region 311 of the middle bending region 31 is defined as the first middle region 311a, and the middle regions 311 of the two bending regions 31 on both sides are the second middle region 311b. The lengths of the through holes 32 in the two second middle regions 311b are equal and smaller than the length of the through holes 32 in the first middle region 311a. Such setting can make the bending deformation capability of the first middle region 311a greater than that of the second middle region 311b, while the bending deformation capabilities of the two second middle regions 311b are the same. Since the first middle region 311 a has a relatively large deformation capacity, it corresponds to the bottom of the water drop shape during the bending process of the entire flexible display 10 , and presents a relatively smooth arc shape.

As shown in FIG. 6 , in the embodiment of the present application, the following characteristics exist for the through-hole rows 321 in the middle region 311 and the two edge regions 312 in the bending region 31 . For any two adjacent through-hole columns 321 located in the same area, any adjacent two through-holes 32 in one of the through-hole columns 321 are spaced apart in the second direction to form a spacer 322 , and the other through-hole columns 321 The plurality of through holes 32 correspond to the plurality of spacers 322 in the first direction. It can be understood that for any two adjacent through-hole rows 321 in the same area, there are no two through-holes 32 aligned with each other in the first direction, but the two through-hole rows 321 are misaligned in the second direction, so that Any one of the through holes 32 corresponds to the space between two through holes 32 in the adjacent through hole row 321 in the first direction. Such arrangement can make the plurality of spacers 322 more dispersed, so as to disperse the user's touch force, thereby reducing the degree of film printing on the screen 20 .

Further, any through-hole 32 in another through-hole row 321 has a first midpoint G1 in the second direction, any spacer 322 has a second midpoint G2 in the second direction, and multiple first midpoints G1 and multiple There is a one-to-one correspondence between the second midpoints G2 in the first direction. It can be understood that the first midpoint G1 is the midpoint of the length of the through hole 32 , and the second midpoint G2 is the midpoint of the line connecting the two nearest points along the second direction of two adjacent through holes 32 . On the basis that two adjacent through-hole columns 321 are dislocated along the second direction, the connection line between the first midpoint G1 and the second midpoint G2 is parallel to the first direction, so as to achieve a corresponding state. For two adjacent through-hole rows 321, there are multiple first midpoints G1 in a plurality of through-holes 32 in one of the through-hole rows 321, and a plurality of spacers 322 in the other through-hole row 321. The second midpoint G2, the plurality of first midpoints G1 and the plurality of second midpoints G2 correspond one-to-one, so as to achieve a more dispersed and uniform distribution of the spacers 322, thereby better dispersing the user's touch force , to further reduce the film printing degree of the screen 20 .

Specifically, in this application, the plurality of through-hole rows 321 are evenly distributed along the first direction, and the plurality of through-hole rows 321 are divided into a plurality of first through-hole rows 321a and a plurality of second through-hole rows 321b. 321a and the second through-hole row 321b are arranged alternately along the first direction; the two through-holes 32 located at two ends of the first through-hole row 321a along the second direction extend along the second direction and pass through the edge of the support plate 30 . It can be understood that the plurality of first through hole rows 321 a and the plurality of second through hole rows 321 b jointly constitute all the through hole rows 321 in the bending region 31 . By making the two through holes 32 at both ends of the first through hole row 321a pass through the edge of the support plate 30, the positions of the two edges of the bending area 31 along the second direction can be zigzag, so that The stiffness of the bending region 31 is reduced at the edge in the second direction so as to be easily bent. However, the other through holes 32 in the first through hole row 321 a and all the through holes 32 in the second through hole row 321 b do not penetrate the edge of the support plate 30 and are closed at both ends.

It should be noted that, for the support plate 30 of the present application, the widths of the three bending regions 31 along the first direction can be set according to requirements. The length range of the through hole 32 in the bending area 31 is also not specifically limited, and can be set as required.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims

A support plate, characterized in that the support plate has three bending areas, the three bending areas are sequentially arranged at intervals along the first direction, and each of the bending areas is penetratingly provided with a plurality of through holes The support plate is in the shape of a flat plate, and can be bent in the three bending areas.
The support plate according to claim 1, wherein the through hole extends along a second direction perpendicular to the first direction and is elongated.
The support plate according to claim 2, characterized in that, the width of the through hole along the first direction is h1, 0.08mm≤h1≤0.1mm.
The support plate according to claim 1, wherein the plurality of through-holes in the bending region are divided into a plurality of through-hole rows uniformly distributed along the first direction, and two adjacent through-hole rows The spacing between the through hole columns is h2, 0.12mm≤h2≤0.15mm.
The support plate according to any one of claims 1 to 4, characterized in that, the support plate is made of carbon fiber, and the thickness of the support plate is H, 0.1mm≤H≤0.15mm.
The support plate according to claim 5, wherein the support plate comprises a plurality of carbon fiber base layers, the plurality of carbon fiber base layers are stacked, and the fiber directions of any two adjacent carbon fiber base layers are perpendicular to each other.
The support plate according to claim 6, characterized in that, among the plurality of carbon fiber base layers, the fiber directions of the two carbon fiber base layers that are farthest away are consistent.
The support plate according to claim 2, wherein the bending area is divided into a middle area and two edge areas, and the two edge areas are located on both sides of the middle area along the first direction; Along the first direction, the density of the through holes in the two edge regions gradually decreases as the distance from the middle region gradually increases.
The support plate according to claim 8, wherein the plurality of through holes in the bending region are divided into a plurality of through hole rows distributed along the first direction, any of the through hole rows The plurality of through-holes are evenly spaced along the second direction.
The support plate according to claim 9, characterized in that, in the middle region and/or the edge region, for any two adjacent through-hole rows located in the same region, one of the through-hole rows Any two adjacent through-holes in the through-hole row are spaced apart in the second direction to form a spacer, and the plurality of through-holes in the other through-hole column and the plurality of spacers are in the first through-hole row. The directions correspond one to one.
The support plate according to claim 10, wherein any one of the through holes in the other through hole row has a first midpoint in the second direction, and any one of the spacers is in the second direction. The two directions have a second midpoint, and a plurality of the first midpoints correspond to a plurality of the second midpoints in the first direction.
The support plate according to claim 9, wherein the plurality of through-hole rows are evenly distributed along the first direction, and the plurality of through-hole rows are divided into a plurality of first through-hole rows and a plurality of second through-hole rows. Two through-hole rows, the first through-hole row and the second through-hole row are arranged alternately along the first direction; the two through-hole rows located at both ends along the second direction in the first through-hole row The through hole extends along the second direction and passes through the edge of the support plate.
The support plate according to any one of claims 9 to 12, characterized in that, in the bending region, the plurality of through-hole rows in the middle region are evenly distributed along the first direction, and The lengths of the plurality of through holes along the second direction are equal.
The support plate according to claim 13, wherein the lengths of the through holes in the two edge regions are shorter than the lengths of the through holes in the middle region; along the first direction, gradually The length of the through holes in the two edge regions gradually decreases away from the middle region.
The support plate according to claim 13, wherein the middle area defining the bending area at the middle position is the first middle area, and the middle areas of the two bending areas on both sides are the second middle area. middle area; the lengths of the through holes in the two second middle areas are equal, and both are smaller than the length of the through holes in the first middle area.
A flexible display screen, characterized in that it includes a screen and a support plate, the screen is connected to the support plate, and is stacked with the support plate, the support plate has three bending regions, and the three The bending areas are sequentially arranged at intervals along the first direction, and each of the bending areas is provided with a plurality of through holes in a mesh shape; the support plate has a flat plate structure, and can All bent.
The flexible display screen according to claim 16, wherein the support plate comprises a plurality of carbon fiber base layers, the plurality of carbon fiber base layers are stacked, and the fiber directions of any two adjacent carbon fiber base layers are perpendicular to each other .
The flexible display screen according to claim 17, wherein among the plurality of carbon fiber base layers, the fiber directions of the two carbon fiber base layers that are farthest away are consistent.
The flexible display screen according to claim 16, wherein the bending area is divided into a middle area and two edge areas, and the two edge areas are located on both sides of the middle area along the first direction ; Along the first direction, the concentration of the through holes in the two edge regions gradually decreases as the distance from the middle region gradually increases.
An electronic device is characterized in that it includes a flexible display screen, the flexible display screen includes a screen and a support plate, the screen is connected to the support plate, and is stacked with the support plate, the support plate has three three bending areas, the three bending areas are sequentially arranged at intervals along the first direction, and each of the bending areas is provided with a plurality of through holes in a mesh shape; the support plate is in a flat plate structure, and It can be bent in all three said bending areas.