阅读说明：本技术 显示屏和显示装置 (Display screen and display device ) 是由 韩文 冯子康 于 2021-07-19 设计创作，主要内容包括：本发明公开了显示屏和显示装置,显示屏包括弯曲区,显示屏包括显示层和盖板层,盖板层位于显示层上,盖板层包括位于弯曲区中复合部,复合部中设有多个孔,孔内填充有弹性模量小于复合部的弹性模量的材料；该方案通过在硬度较大的盖板中位于弯曲区中的部分开设的孔内填充有弹性模量较小的材料,以兼顾盖板层位于弯曲区中的部分的硬度和弹性,避免该部分的硬度较低、耐摩性较差、落球性能较差,提高了显示屏的防受损能力。(The invention discloses a display screen and a display device, wherein the display screen comprises a bending area, the display screen comprises a display layer and a cover plate layer, the cover plate layer is positioned on the display layer, the cover plate layer comprises a composite part positioned in the bending area, a plurality of holes are formed in the composite part, and a material with the elasticity modulus smaller than that of the composite part is filled in the holes; according to the scheme, the hole formed in the part, located in the bending area, of the cover plate with the high hardness is filled with the material with the low elastic modulus, so that the hardness and the elasticity of the part, located in the bending area, of the cover plate layer are both considered, the situation that the hardness of the part is low, the abrasion resistance is poor, the falling ball performance is poor is avoided, and the damage prevention capability of the display screen is improved.)

1. A display screen, wherein the display screen comprises a bend region, the display screen comprising:

a display layer;

the apron layer, the apron layer is located on the display layer, the apron layer is including being located compound portion in the bending zone, be equipped with a plurality of holes in the compound portion, the downthehole packing has elastic modulus to be less than compound portion's elastic modulus's material.

2. A display screen as recited in claim 1, wherein the composite portion includes a main composite portion and first and second sub-composite portions on opposite sides of the main composite portion, the volume fraction of the plurality of holes in the main composite portion being greater than the volume fraction of the plurality of holes in either of the first and second sub-composite portions.

3. A display screen as recited in claim 2, wherein the volume of the hole in the primary composite is greater than the volume of the hole in either of the first secondary composite or the second secondary composite.

4. A display screen in accordance with claim 2 wherein the spacing between two adjacent holes in the primary composite portion is less than the spacing between two adjacent holes in either of the first secondary composite portion and the second secondary composite portion.

5. A display screen in accordance with claim 2 wherein the plurality of apertures are arranged in a plurality of aperture groups, each aperture group comprising a plurality of said apertures;

the holes in every two adjacent hole groups are arranged in a staggered mode along a second direction, the first direction is the direction in which the main composite part points to the second auxiliary composite part, and the first direction is perpendicular to the second direction.

6. A display screen in accordance with claim 5 wherein a plurality of the holes in each two adjacent groups of holes in the main composite have overlapping portions in the second direction.

7. A display screen as recited in claim 6, wherein a plurality of the apertures in adjacent sets of apertures in both the first sub-composite and the second sub-composite have overlapping portions in the second direction, the overlapping portions in both the first sub-composite and the second sub-composite having a smaller dimension in the second direction than the overlapping portions in the main composite.

8. The display screen of claim 5, wherein a first gap is formed between two adjacent holes in the first sub-composite portion in the first direction, and a plurality of the first gaps decrease in the first direction.

9. A display screen according to claim 5, wherein in the first direction, adjacent holes in the second sub-composite portion have second gaps therebetween, and a plurality of the second gaps increase in the first direction.

10. A display screen according to claim 1, wherein the projection of the apertures onto the display layer is in an axisymmetric pattern, and opposite ends of the projection are each in the form of a semi-ellipse, and the extensions of the major axes of both semi-ellipses are perpendicular to the axis of symmetry of the projection.

11. The display screen of claim 1, wherein at least one of the holes extends from a side of the composite portion proximate to the display layer to a side of the composite portion distal from the display layer, and the hole does not extend through the composite portion.

12. A display screen according to claim 1, wherein the material filled in the holes comprises a resin or a cured glue.

13. A display device, characterized in that the display device comprises a display screen, the display screen comprising:

a display layer;

the cover plate layer is positioned on the display layer and comprises a composite part positioned in the bending area, a plurality of holes are formed in the composite part, and materials with the elastic modulus smaller than that of the composite part are filled in the holes;

wherein the display device further comprises:

the display screen is laid on the supporting member, the supporting member comprises a first supporting member and a second supporting member, the first supporting member and the second supporting member are arranged in a relatively sliding mode, and the first supporting member corresponds to the bending area;

the transmission mechanism is connected to the first supporting member, the first end of the cover plate layer is connected to one end, away from the first supporting member, of the second supporting member, and the second end of the cover plate layer is connected to the transmission mechanism;

a spool at an end of the first support member remote from the second support member;

when the second supporting member slides relative to the first supporting member, the cover plate layer enables the display screen to move relatively on the supporting member under the action of the second supporting member and the transmission mechanism, and the reel is used for assisting the display screen to move relatively on the supporting member;

wherein, the display layer includes the pre-bending portion, the pre-bending portion is walked around the spool and is extended to one side that first support member kept away from the apron layer, or the pre-bending portion passes through the display screen and lies in after relative motion on the supporting member first support member keeps away from the one end of apron layer.

14. The display device according to claim 13, wherein the display layer includes a polarizing layer, both ends of the polarizing layer being connected to both ends of the cover plate layer, respectively;

when the second supporting member slides relative to the first supporting member, the cover plate layer and the polarizing layer are driven by the second supporting member and the transmission mechanism to enable the display screen to move relatively on the supporting member.

Technical Field

The invention relates to the technical field of display, in particular to the technical field of display panel manufacturing, and particularly relates to a display screen and a display device.

Background

Compared with the traditional screen, the flexible screen has the characteristics of bending and folding, and the curled screen is the flexible screen which realizes the amplification and reduction of the screen by contracting and stretching the display screen based on the bending characteristic of the flexible screen.

The outermost layer of the curled screen is generally made of high polymer materials to achieve the bending characteristic, so that the outermost layer of the curled screen is low in hardness, poor in abrasion resistance and poor in ball falling performance, and the damage prevention capability of the curled screen is reduced.

In view of the foregoing, it is desirable to provide a display screen and a display device that can improve the damage prevention capability of the screen.

Disclosure of Invention

The invention aims to provide a display screen and a display device, and aims to solve the problem that the outermost layer of the display screen in the prior art is low in hardness, poor in abrasion resistance and poor in ball falling performance, so that the screen is low in damage prevention capability.

An embodiment of the present invention provides a display screen, where the display screen includes a bending region, and the display screen includes:

a display layer;

the apron layer, the apron layer is located on the display layer, the apron layer is including being located compound portion in the bending zone, be equipped with a plurality of holes in the compound portion, the downthehole packing has elastic modulus to be less than compound portion's elastic modulus's material.

In one embodiment, the composite portion includes a main composite portion and first and second sub-composite portions on opposite sides of the main composite portion, the volume fraction of the plurality of holes in the main composite portion being greater than the volume fraction of the plurality of holes in either of the first and second sub-composite portions.

In an embodiment, the volume of the hole in the primary composite is greater than the volume of the hole in either of the first secondary composite or the second secondary composite.

In one embodiment, the distance between two adjacent holes in the main composite part is smaller than the distance between two adjacent holes in either of the first sub composite part and the second sub composite part.

In one embodiment, the plurality of wells is arranged in a plurality of well groups, each well group comprising a plurality of the wells;

the holes in every two adjacent hole groups are arranged in a staggered mode along a second direction, the first direction is the direction in which the main composite part points to the second auxiliary composite part, and the first direction is perpendicular to the second direction.

In an embodiment, a plurality of the holes in every two adjacent hole groups in the main composite portion have overlapping portions in the second direction.

In an embodiment, the holes of two adjacent groups of holes of both the first and second sub-composites have overlapping portions in the second direction, the size of the overlapping portions in both the first and second sub-composites being smaller than the size of the overlapping portions in the main composite in the second direction.

In one embodiment, in the first direction, a first gap is formed between two adjacent holes in the first sub-composite part, and the first gaps decrease in the first direction.

In one embodiment, in the first direction, a second gap is formed between two adjacent holes in the second sub-composite portion, and the second gaps increase in the first direction.

In one embodiment, the projection of the hole on the display layer is an axisymmetric figure, two opposite ends of the projection are semi-ellipses, and the extension lines of the major axes of the two semi-ellipses are perpendicular to the symmetry axis of the projection.

In one embodiment, at least one of the holes extends from a side of the composite portion close to the display layer to a side far away from the display layer, and the hole does not penetrate through the composite portion.

In one embodiment, the material filled in the hole comprises resin or curing glue.

An embodiment of the present invention provides a display device, where the display device includes a display screen, and the display screen includes:

a display layer;

the cover plate layer is positioned on the display layer and comprises a composite part positioned in the bending area, a plurality of holes are formed in the composite part, and materials with the elastic modulus smaller than that of the composite part are filled in the holes;

wherein the display device further comprises:

the display screen is laid on the supporting member, the supporting member comprises a first supporting member and a second supporting member, the first supporting member and the second supporting member are arranged in a relatively sliding mode, and the first supporting member corresponds to the bending area;

the transmission mechanism is connected to the first supporting member, the first end of the cover plate layer is connected to one end, away from the first supporting member, of the second supporting member, and the second end of the cover plate layer is connected to the transmission mechanism;

a spool at an end of the first support member remote from the second support member;

when the second supporting member slides relative to the first supporting member, the cover plate layer enables the display screen to move relatively on the supporting member under the action of the second supporting member and the transmission mechanism, and the reel is used for assisting the display screen to move relatively on the supporting member;

wherein, the display layer includes the pre-bending portion, the pre-bending portion is walked around the spool and is extended to one side that first support member kept away from the apron layer, or the pre-bending portion passes through the display screen and lies in after relative motion on the supporting member first support member keeps away from the one end of apron layer.

In one embodiment, the display layer comprises a polarizing layer, and two ends of the polarizing layer are respectively connected to two ends of the cover plate layer;

when the second supporting member slides relative to the first supporting member, the cover plate layer and the polarizing layer are under the action of the second supporting member and the transmission mechanism, so that the display screen moves relatively on the supporting member

The display screen and the display device provided by the embodiment of the invention have the advantages that the display screen comprises a bending area, and the display screen comprises: a display layer; the apron layer, the apron layer is located on the display layer, the apron layer is including being located compound portion in the bending zone, be equipped with a plurality of holes in the compound portion, the downthehole packing has elastic modulus to be less than compound portion's elastic modulus's material. According to the scheme, the cover plate layer is provided with the plurality of holes in the bending area, and the holes are filled with the material with the smaller elastic modulus, so that the hardness and the elasticity of the part of the cover plate layer in the bending area are considered, the parts are prevented from being lower in hardness, poor in abrasion resistance and poor in ball falling performance, and the damage prevention capability of the display screen is improved.

Drawings

The invention is further illustrated by the following figures. It should be noted that the drawings in the following description are only for illustrating some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.

FIG. 1 is a schematic cross-sectional view of a display panel according to the present invention;

FIG. 2 is a schematic top view of a composite portion provided in accordance with the present invention;

FIG. 3 is a schematic top view of a portion of a bore of a composite portion provided by the present invention;

FIG. 4 is an enlarged end view of a projection of a hole provided by the present invention;

FIG. 5 is a schematic cross-sectional view of another display screen provided in accordance with the present invention;

FIG. 6 is a schematic cross-sectional view of a display device according to the present invention in a first state;

fig. 7 is an exploded view of a display device according to the present invention;

fig. 8 is a schematic cross-sectional view of the display device in a second state according to the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the 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. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments. In addition, it should be noted that the drawings only provide a structure closely related to the present invention, and some details which are not related to the present invention are omitted, so as to simplify the drawings and make the invention clear, but not to show that the device in practice is the same as the drawings and not to limit the device in practice.

The present invention provides a display screen including, but not limited to, the following embodiments and combinations of the following embodiments.

In one embodiment, as shown in FIG. 1, the display screen 100 includes a bending zone 01, the display screen including: a display layer 10; the cover plate layer 20 is located on the display layer 10, the cover plate layer 20 includes a composite portion 201 located in the bending region 01, as shown in fig. 2, a plurality of holes 202 are provided in the composite portion 201, and the holes 202 are filled with a material having an elastic modulus smaller than that of the composite portion 201.

The display screen 100 may be applied to a cloud-rolled display device or other flexible display devices. Specifically, when the display screen 100 is applied to a cloud-rolled display device, the bending region 01 may be understood as a portion of the display screen 100 that can be located on the front or back of the cloud-rolled display device through a rolling motion, that is, the bending region 01 needs to perform the rolling motion for a long time, so that the bending region 01 needs to have high flexibility and high elasticity.

It will be appreciated that, as shown in fig. 1, since the cover plate layer 20 is located on the display layer 10, further, the cover plate layer 20 may extend beyond the display layer 10 to be connected with other members of the cloud rolled display device. Specifically, the display layer 10 may be located between the cover plate layer 20 and other members of the cloud curling display device, and the other members of the cloud curling display device drive the cover plate layer 20 to perform a curling motion, so as to drive the display layer 10 to perform a curling motion, and therefore, the composite portion 201 also needs to perform a curling motion for a long time, and therefore, the composite portion 201 needs to have high flexibility and high elasticity. It should be noted that in the present embodiment, a plurality of holes 202 are formed in the composite portion 201, and a material with an elastic modulus smaller than that of the composite portion 201 is filled in the holes 202, so that the composite portion 201 has high flexibility and high elasticity; meanwhile, in the present embodiment, the composite portion 201 is not made of the same material with a smaller elastic modulus, but the elastic modulus of the composite portion 201 is set to be greater than the elastic modulus of the material filled in the hole 202, so that the composite portion 201 may still have suitable hardness and abrasion resistance, and the damage prevention capability of the display screen is improved.

In one embodiment, as shown in fig. 2, the composite part 201 includes a main composite part 2011 and a first sub-composite part 2012 and a second sub-composite part 2013 on opposite sides of the main composite part 2011, and a volume fraction of the plurality of holes 202 in the main composite part 2011 is greater than a volume fraction of the plurality of holes 202 in either of the first sub-composite part 2012 or the second sub-composite part 2013.

Specifically, as shown in fig. 1, the display screen 100 further includes two non-bending regions 02, both of the non-bending regions 02 may be disposed adjacent to the bending region 01, and further, the two non-bending regions 02 may be respectively located at two opposite sides of the bending region 01. As can be seen from fig. 2, the first sub-composite 2012 may be disposed adjacent to one of the non-bending regions 02, and the second sub-composite 2013 may be disposed adjacent to the other of the non-bending regions 02. It will be appreciated that since the two non-bending regions 02 are not required to perform a curling motion, the two non-bending regions 02 are not required to have high flexibility and high elasticity, and instead, may require high stiffness to support the display screen 100.

As can be seen from the above discussion, the flexibility or stiffness of the cover plate layer 20 may be consistent with the flexibility or stiffness of the display screen 100; note that, in both cases where the plurality of holes 202 are opened in the composite portion 201 and where the holes 202 are filled with a material having a smaller elastic modulus than that of the composite portion 201, the hardness is reduced relative to the portion of the cover plate layer 20 where the holes 202 are not opened. It can be understood that, in this embodiment, the volume ratio of the plurality of holes 202 in the main composite 2011 is set to be greater than the volume ratio of the plurality of holes 202 in either of the first sub composite 2012 and the second sub composite 2013, so that the volume ratio of the plurality of holes 202 in the first sub composite 2012 and the volume ratio of the plurality of holes 202 in the second sub composite 2013 are both less than the volume ratio of the plurality of holes 202 in the main composite 2011, that is, the hardness of the first sub composite 2012 and the hardness of the second sub composite 2013 are both greater than the hardness of the main composite 2011, and the hardness of the first sub composite 2012 and the hardness of the second sub composite 2013 are also significantly less than the hardness of the two portions on both sides of the composite 201, so that the first sub composite 2012 and the second sub composite 2013 correspond to the hardness transition formed in the bending zone 01 in the region near the two non-bending zones 02 The 'hardness transition region' can avoid the fracture caused by large difference of hardness between the bending region 01 and any non-bending region 02 and large stress difference during the bending.

In one embodiment, as shown in fig. 2, the volume of the aperture 202 in the primary composite 2011 is greater than the volume of the aperture in either of the first secondary composite 2012 or the second secondary composite 2013. The volume of the hole 202 may be understood as the volume of the solid substance when the hole 202 is filled with the solid substance, and the shape of the hole 202 is not limited herein.

As can be seen from the above discussion, the stiffness of the composite portion 201 is inversely related to the total volume of the plurality of holes 202 therein or the total volume of the plurality of holes 202 filled with a material having an elastic modulus less than the elastic modulus of the composite portion 201; specifically, in this embodiment, the volume of the hole 202 in the main composite part 2011 is set to be greater than the volume of the hole 202 in any one of the first sub-composite part 2012 and the second sub-composite part 2013, and the volume occupation ratio of the holes 202 in the main composite part 2011 can be greater than the volume occupation ratio of the holes 202 in any one of the first sub-composite part 2012 and the second sub-composite part 2013 by reasonably setting the volumes of the holes 202 in different areas of the composite part 201; further, as shown in fig. 2, for the whole composite portion 201, in a direction from the symmetry axis 03 of the composite portion 201 to the non-bending region 02, the volume of the plurality of holes 202 may gradually decrease to gradually increase the hardness to form the "hardness transition region" so as to avoid the fracture caused by a large difference in hardness between the bending region 01 and any one of the non-bending regions 02 due to a large difference in force during the bending. Wherein the axis of symmetry 03 may be parallel to a boundary line of the bending region 01 and the non-bending region 02.

In one embodiment, as shown in fig. 2, the distance between two adjacent holes 202 in the main composite part 2011 is smaller than the distance between two adjacent holes 202 in either of the first sub-composite part 2012 and the second sub-composite part 2013. The distance between two adjacent holes 202 can be understood as an average value of the distances between two adjacent holes 202, and the relative position relationship of the holes 202 is not limited herein.

As can be seen from the above discussion, the stiffness of the composite portion 201 is inversely related to the total volume of the plurality of holes 202 therein or the total volume of the plurality of holes 202 filled with a material having an elastic modulus less than the elastic modulus of the composite portion 201; specifically, in this embodiment, the distance between two adjacent holes 202 in the main composite portion 2011 is set to be smaller than the distance between two adjacent holes 202 in any one of the first sub composite portion 2012 and the second sub composite portion 2013, and the volume ratio of the holes 202 in the main composite portion 2011 is larger than the volume ratio of the holes 202 in any one of the first sub composite portion 2012 and the second sub composite portion 2013 by reasonably setting arrangement gaps of the holes 202 in different areas of the composite portion 201; further, as shown in fig. 2, for the whole composite portion 201, in a direction from the symmetry axis 03 of the composite portion 201 to the non-bending region 02, the gap between two adjacent holes 202 may be gradually increased to gradually increase the hardness to form the "hardness transition region" so as to avoid the fracture caused by a large difference in hardness between the bending region 01 and any one of the non-bending regions 02 due to a large difference in force during the crimping.

In one embodiment, as shown in FIG. 2, the plurality of wells 202 are arranged in a plurality of well groups 203, each well group 203 comprising a plurality of wells 202; the plurality of holes 203 are arranged along a first direction 04, a plurality of holes 202 in every two adjacent holes 203 are staggered along a second direction 05, the first direction 04 is a direction in which the main combining part 2011 points to the second sub-combining part 2013, and the first direction 04 is perpendicular to the second direction 05.

Here, for convenience of description, it may be considered that each of the hole groups 203 extends in one column along the second direction 05, and the plurality of holes 202 arranged along the first direction 04 in the plurality of hole groups 203 are formed in one row. Specifically, the holes 202 in every two adjacent hole groups 203 are arranged in the second direction 05 in a staggered manner, and it can be understood that the holes 202 in any two adjacent columns are arranged in the second direction 05 in a staggered manner, that is, the left side and the right side of one of the holes 202 are provided with a gap, so it can be understood that the holes 202 in odd columns can be arranged in odd rows such as the first row, the third row, the fifth row, and the like, and correspondingly, the holes 202 in even columns can be arranged in even rows such as the second row, the fourth row, the sixth row, and the like, that the holes 202 can be arranged in an array manner along the first direction 04 and the second direction 05, and it can be understood that the holes 202 in any two rows can also be arranged in a staggered manner along the first direction 04.

In one embodiment, as shown in fig. 2, a plurality of the holes 202 in every two adjacent hole groups 203 in the main composite portion 2011 have overlapping portions in the second direction 05. Specifically, as shown in fig. 2, for a plurality of holes 202 in the main composite portion 2011, in the case where one hole 202 corresponds to a gap in the adjacent hole group 203, the hole 202 may extend beyond the corresponding gap in the second direction 05 to overlap the hole 202 on the upper side and the hole 202 on the lower side of the corresponding gap. In conjunction with the above discussion, it can also be understood that the holes 202 in the main composite portion 2011 located in two adjacent rows have overlapping portions in the second direction 05, and the size of the overlapping portions in the second direction 05 is not limited as long as it is ensured that there is still a corresponding gap between two adjacent holes 202 in each hole group 203. It is understood that the overlapping portions of the present embodiment may further increase the arrangement density of the plurality of holes 202 in the primary composite portion 2011, so that the primary composite portion 2011 has higher flexibility and greater elasticity.

In one embodiment, as shown in fig. 2, the holes 202 in two adjacent hole groups 203 in both the first sub-composite 2012 and the second sub-composite 2013 have overlapping portions in the second direction 05, and the size of the overlapping portions in both the first sub-composite 2012 and the second sub-composite 2013 is smaller than the size of the overlapping portions in the main composite 2011 in the second direction 05. As can be seen from the above discussion, firstly, providing the overlapped portions in both the first sub-composite 2012 and the second sub-composite 2013 in the present embodiment can suitably improve the flexibility and elasticity of the first sub-composite 2012 and the second sub-composite 2013, and secondly, the size of the overlapped portion in both the first sub-composite 2012 and the second sub-composite 2013 is set to be smaller than the size of the overlapped portion in the main composite 2011, so that the hardness of the first sub-composite 2012 and the second sub-composite 2013 can still be greater than the hardness of the main composite 2011 to form the "hardness transition zone".

In an embodiment, as shown in fig. 2, in the first direction 04, a first gap 06 is formed between two adjacent holes 202 in the first sub-composite portion 2012, and a plurality of the first gaps 06 decrease in the first direction 04. Specifically, the holes 202 in the first secondary composite part 2012 are arranged more closely to the primary composite part 2011, so that the hardness of the part of the first secondary composite part 2012 closer to the primary composite part 2011 is smaller, and the arrangement is more sparsely arranged further from the primary composite part 2011, so that the hardness of the part of the first secondary composite part 2012 farther from the primary composite part 2011 is larger, and similarly, the "hardness transition region" is formed, so as to avoid breaking caused by a larger difference in hardness between the bending region 01 and any one of the non-bending regions 02 when the bending region is curled due to a larger difference in stress.

In one embodiment, as shown in fig. 2, in the first direction 04, a second gap 07 is formed between two adjacent holes 202 in the second sub-compound portion 2013, and the second gaps 07 increase in the first direction 04. Specifically, the holes 202 in the second secondary composite portion 2013 are closer to the main composite portion 2011 and arranged more densely, so that the hardness of the portion, closer to the main composite portion 2011, of the first secondary composite portion 2012 is smaller, and the portion, farther from the main composite portion 2011, of the first secondary composite portion 2012 is arranged sparsely, so that the hardness of the portion, farther from the main composite portion 2011, of the first secondary composite portion 2012 is larger, and similarly, the "hardness transition region" is formed, so that the problem that the bending region 01 and any one of the non-bending regions 02 have a larger hardness difference and are subjected to a larger force difference during the bending process to cause fracture is avoided.

In one embodiment, as shown in fig. 2 to 4, the projection of the hole 202 on the display layer 10 is an axisymmetric pattern, and the two opposite ends 204 in the projection are semi-ellipses, and the major axes b of the two semi-ellipses are perpendicular to the symmetry axis 08 of the projection. Specifically, the shapes of the plurality of holes 202 may be identical, as shown in fig. 2 to 4, fig. 3 is a schematic view illustrating the arrangement of a part of the holes 202 in fig. 2, fig. 4 is an enlarged schematic view illustrating one of the end portions 204 of the holes 202, and further, each of the holes 202 may extend along the second direction 05, that is, the symmetry axis 08 corresponding to the two half ellipses formed as the two end portions 204 may be parallel to the first direction 04, and the minor axis a of the half ellipse is parallel to the first direction 04. It will be appreciated that, as shown in fig. 4, by providing the opposite ends 204 in the projection as semi-ellipses, avoiding the ends 204 from including sharp portions, the stress can be further relieved; compared with a semi-circle shape, the semi-ellipse can avoid the overlarge size of the hole 202 caused by over-etching in the etching process, and the process is more convenient.

Specifically, the projection of the hole 202 on the display layer 10 is a centrosymmetric graph, as shown in table 1, which is a value of a part of parameters in fig. 3. Where a is a short axis of the semi-ellipse, b is a long axis of the semi-ellipse, x is a distance between two adjacent holes 202 in the second direction 05, y is a distance between two adjacent holes 202 in the first direction 04, L is a distance between centers of ellipses at two end portions 204 in the same hole 202, L1 is a distance between centers of two adjacent holes 202 in the second direction 05, and L2 is a distance between centers of two adjacent holes 202 in the first direction 04. Further, y may have a gradually changing trend in the first direction 04, specifically, the size of y may be gradually set small in a direction away from the center of the projection, and x may have a gradually changing trend in the second direction 05, specifically, refer to the related discussion above.

TABLE 1

In an embodiment, as shown in fig. 1 and fig. 2, at least one of the holes 202 extends from a side of the composite portion 201 close to the display layer 10 to a side far from the display layer 10, and the hole 202 does not penetrate through the composite portion 201. It can be understood that the hole 202 in this embodiment is formed on a side of the composite portion 201 close to the display layer 10, and is not present on a side of the composite portion 201 away from the display layer 10, and it can be understood that a user views and touches from a side of the composite portion 201 away from the display layer 10, and the embodiment can avoid reducing display quality and tactile sensation by reasonably setting the position of the hole 202.

In one embodiment, the material filled in the hole 202 includes resin or curing glue. It should be noted that the composite portion 201 may be made of glass or may be a film layer formed of aramid, the elastic modulus of the composite portion 201 may be in the gigapascal level, and the elastic modulus of the structure filled in the hole 202 with resin or curing glue may be in the range of 1 megapascal to 100 megapascals, and the elastic modulus of the structure formed in the hole 202 is not less than 99%, that is, the elastic modulus of the structure formed in the hole 202 is small, so that the elastic performance of the composite portion 201 can be effectively improved while the high hardness of the composite portion 201 is achieved. The composite portion 201 with a thickness of 0.03mm to 0.7mm may be prepared from glass, the hole 202 may be filled with optical-grade resin or optical curing adhesive having optical properties close to those of glass, such as refractive index and transmittance, and the hole 202 may be filled with liquid optical-grade resin or optical curing adhesive, and then cured by high temperature or ultraviolet light irradiation to form a solid structure filled in the hole 202.

In one embodiment, as shown in fig. 5, the display layer 10 includes: an array substrate layer 101, the array substrate layer 101 comprising a plurality of membrane layers; a light emitting layer 102, the light emitting layer 102 being located on the array substrate layer 101, the cover plate layer 20 being located on the light emitting layer 102; wherein, a plurality of first holes are arranged in the part of at least one film layer in the array substrate layer 101, which is positioned in the bending area 01. Further, the first hole may be filled with a material having an elastic modulus smaller than that of the film layer. Similarly, the embodiment may enable a portion of the film layer located in the bending area 01 to have higher flexibility and greater elasticity.

Specifically, as shown in fig. 5, the display layer 10 may further include: a metal layer 103, a flexible substrate layer 104 located between the metal layer 103 and the array substrate layer 101, and an encapsulation layer 105 located on a side of the light-emitting layer 102 away from the array substrate layer 101. The magnetic permeability of the metal layer 103 may be not less than 1.5H/m, and the flexible substrate layer 104 may be made of polyimide. The display screen 100 may further include a touch layer 30 on the display layer 10, and a polarizing layer 40 on the touch layer 30, the cover plate layer 20 may be fixed on the polarizing layer 40 by an adhesive layer 50, and the cover plate layer 20 may be provided with a protective layer 60. Wherein, paste layer 50 and can be but not limited to optical resin or solidification glue, the component material of protective layer 60 can be but not limited to transparent polyimide film, or can adopt dacron resin or polyurethane preparation protective layer 60, it is further, protective layer 60 with can be equipped with the glue film between apron layer 20, the glue film can adopt silica gel or the preparation of glue system, the glue film with the drawing force scope between apron layer 20 can be 5g/25mm to 100g/25mm, can understand, when protective layer 60 damages, can get rid of protective layer 60, can change new protective layer even, play the protection apron layer 20's effect.

The present invention provides a display device including, but not limited to, the following embodiments and combinations of the following embodiments.

In one embodiment, as shown in fig. 6 and 7, the display device 200 includes a display screen 100, and the display screen 100 includes: a display layer 10; the cover plate layer 20 is positioned on the display layer 10, the cover plate layer 20 comprises a composite part 201 positioned in the bending area 01, a plurality of holes are formed in the composite part 201, and materials with the elastic modulus smaller than that of the composite part 201 are filled in the holes; wherein the display device 200 further includes: a support member on which the display screen is laid, the support member including a first support member 701 and a second support member 702, as shown in fig. 7, the first support member 701 and the second support member 702 are arranged in a sliding manner, and the first support member 701 corresponds to the bending region 01; a transmission mechanism connected to the first support member 701, as shown in fig. 6, wherein the first end 205 of the cover plate layer 20 is connected to an end of the second support member 702 away from the first support member 701, and the second end 206 of the cover plate layer 20 is connected to the transmission mechanism; a reel 80, the reel 80 being located at an end of the first support member 701 remote from the second support member 702; when the second support member 702 slides relative to the first support member 701, the cover plate layer 20 is under the action of the second support member 702 and the transmission mechanism, so that the display screen moves relatively on the support member, and the reel 80 is used for assisting the display screen to move relatively on the support member; wherein the display layer 10 includes a pre-bent portion 106, as shown in fig. 6, the pre-bent portion 106 bypasses the reel 80 and extends to a side of the first support member 701 away from the cover plate layer 20, or as shown in fig. 8, the pre-bent portion 106 is located at an end of the first support member 701 away from the cover plate layer 20 after relative movement of the display screen 100 on the support member.

As shown in fig. 6 to 8, the transmission mechanism includes two racks 901, two gear sets 904, two screws 902 and a slider 903, which are located on the back of the first support member 701, the two racks 901 are located on two opposite sides of the first support member 701 respectively, the two racks 901 are perpendicular to the reel 80, each screw 902 is connected to the corresponding rack 901 through one gear set 904, the slider 903 is parallel to the reel 80, two ends of the slider 903 are connected to the two screws 902 respectively, and further, the second end 206 of the cover plate layer 20 is connected to the slider 903. It should be noted that the slider 903 and the screw 902 may be located between the second end 206 of the cover plate layer 20 and the first support member 701, so as to facilitate the fitting and assembling of the cover plate layer 20 and the slider 903.

Specifically, as shown in fig. 6 and 7, when the second support member 702 slides towards the first support member 701 through the rack 901 and the gear set 904, on one hand, the first end 205 of the cover plate layer 20 also slides towards the first support member 701, which causes the second end 206 of the cover plate layer 20 to slide towards the second support member 702, so that the display device 200 can be changed from the state of fig. 6 to the state of fig. 8, and also drives the slider 903 to slide towards the second support member 702, and on the other hand, the gear set 904 can also drive the slider 903 to slide towards the second support member 702 through the screw 902; further, sliding the slider 903 towards the second support member 702 may in turn cause the second end 206 of the cover plate layer 20 to slide towards the second support member 702, eventually facilitating the transition from the state of fig. 6 to the state of fig. 8.

Similarly, as shown in fig. 8 and 7, when the second support member 702 slides away from the first support member 701 through the rack 901 and the gear set 904, on one hand, the first end 205 of the cover plate layer 20 also slides away from the first support member 701, which causes the second end 206 of the cover plate layer 20 to slide away from the second support member 702, so that the display device 200 can be changed from the state of fig. 8 to the state of fig. 6, and also drives the slider 903 to slide in a direction away from the second support member 702, and on the other hand, the gear set 904 can also drive the slider 903 to slide in a direction away from the second support member 702 through the screw 902; further, sliding the slider 903 away from the second support member 702 may cause the second end 206 of the cover plate layer 20 to slide away from the second support member 702, which ultimately facilitates the transition from the state of fig. 8 to the state of fig. 6.

It is understood that, in the present embodiment, on the basis that a plurality of holes are provided in the composite portion 201, and the holes are filled with a material having an elastic modulus smaller than that of the composite portion 201, the pre-bending portion 106 is arranged to bypass the reel 80 and extend to the side of the first support member 701 away from the cover plate layer 20, that is, in a cross-sectional view, as shown in fig. 6, the pre-bending portion 106 covers 1/2 circles on the side of the reel 80 away from the second support member 702 and a portion of the first support member 701 having a size equal to a radius of the reel 80 on the side away from the cover plate layer 20, so that the display layer 10 can integrally follow the cover plate layer 20 when the second support member 702 slides relative to the first support member 701, so that there is no difference in level on the side of the display layer 10 close to the cover plate layer 20, the display layer 10 is not subjected to uneven stress to cause fracture or glass, and the curling performance and the service life of the display device 200 are improved.

In one embodiment, as shown in fig. 5, the display layer 10 includes a polarizing layer 40, and two ends of the polarizing layer 40 are respectively connected to two ends of the cover plate layer 20; as shown in fig. 6 to 8, when the second support member 702 slides relative to the first support member 701, the cover plate layer 20 and the polarizing layer 40 are driven by the second support member 702 and the transmission mechanism to move the display screen 100 relative to the support member.

It can be understood that, as can be seen from the above discussion, in the present embodiment, by connecting the two ends of the polarization layer 40 to the two ends of the cover plate layer 20 respectively, the supporting member and the transmission mechanism can act on the cover plate layer 20 and the polarization layer 40 simultaneously, that is, the polarization layer 40 can share the force of the supporting member and the transmission mechanism acting on the cover plate layer 20, and the polarization layer 40 and the cover plate layer 20 simultaneously act as a stressed layer, so as to increase the strength of the stressed layer, avoid the risk of breaking when only the cover plate layer 20 is used as the stressed layer, and improve the service life of the display device 200.

Further, as shown in fig. 7, the display device 200 may further include a bottom case 1001 and two side cases 1002, the bottom case 1001 and the two side cases 1002 are used for accommodating the transmission mechanism and the display screen 100, the bottom case 1001 extends from a side of the transmission mechanism away from the support member to a side of the reel 80 away from the support member, and the two side cases 1002 are parallel to the rack 901 and are respectively connected to two opposite sides of the bottom case 1001.

The display screen and the display device provided by the embodiment of the invention have the advantages that the display screen comprises a bending area, and the display screen comprises: a display layer; the apron layer, the apron layer is located on the display layer, the apron layer is including being located compound portion in the bending zone, be equipped with a plurality of holes in the compound portion, the downthehole packing has elastic modulus to be less than compound portion's elastic modulus's material. According to the scheme, the cover plate layer is provided with the plurality of holes in the bending area, and the holes are filled with the material with the smaller elastic modulus, so that the hardness and the elasticity of the part of the cover plate layer in the bending area are considered, the parts are prevented from being lower in hardness, poor in abrasion resistance and poor in ball falling performance, and the damage prevention capability of the display screen is improved.

The display screen and the display device provided by the embodiment of the invention are described in detail, a specific example is applied in the description to explain the principle and the implementation of the invention, and the description of the embodiment is only used for helping to understand the technical scheme and the core idea of the invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.