WO2021068811A1 - 面板保护层及显示面板装置 - Google Patents

面板保护层及显示面板装置 Download PDF

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Publication number
WO2021068811A1
WO2021068811A1 PCT/CN2020/119041 CN2020119041W WO2021068811A1 WO 2021068811 A1 WO2021068811 A1 WO 2021068811A1 CN 2020119041 W CN2020119041 W CN 2020119041W WO 2021068811 A1 WO2021068811 A1 WO 2021068811A1
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WIPO (PCT)
Prior art keywords
panel
layer
folding
springs
spring
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PCT/CN2020/119041
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English (en)
French (fr)
Inventor
李萌
李克法
Original Assignee
李萌
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201921664223.2U external-priority patent/CN210324967U/zh
Priority claimed from CN201910947589.9A external-priority patent/CN110580857A/zh
Application filed by 李萌 filed Critical 李萌
Publication of WO2021068811A1 publication Critical patent/WO2021068811A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

Definitions

  • This application relates to the field of electronic technology, in particular to a panel protection layer and a display panel device.
  • flexible displays With the rapid development of science and technology, flexible displays will be integrated into our lives. Compared with traditional screens, flexible displays are more flexible, lighter and thinner, bendable and foldable, and are easy to carry; when wearing display devices , Desktop display devices and mobile display devices will play a huge role.
  • flexible display screens also have a fragile side, such as being unable to withstand large compressive forces and large tensile forces. Otherwise, excessive force will cause damage to the flexible display screen. Therefore, the flexible display screen will be affected by the movement and application.
  • the supporting movable structure has strict requirements.
  • the folded solid support structure is mostly used for volume reduction sliding treatment to adapt the length of the flexible display screen to maintain a fixed value.
  • the change makes the folding radius formed by the folded rigid support structure larger.
  • the long-term folding of the fixed-point area also reduces the service life of the overall flexible display.
  • the flexible display screen has strict requirements on the movable structure supported by it in the movement and application.
  • the folded solid support structure is mostly used for volume reduction sliding treatment to adapt the length of the flexible display screen to maintain a fixed value.
  • the change makes the folding radius formed by the folded rigid support structure larger.
  • the long-term folding of the fixed-point area also reduces the service life of the overall flexible display.
  • This application opens up a new path and designs and develops an interpretation of the flexible display folding protection method from another technical perspective, which at least solves one of the above-mentioned problems, and its implementation adopts the following technical solutions.
  • an embodiment of the present application provides a panel protection layer, which includes an interpenetrating component, the interpenetrating component is a laminated structure connected layer by layer and spaced apart, and the interpenetrating components of every two laminated structures are arranged side by side with each other. Together, they are successively pierced and extended along the side-by-side direction, and the formed panel protection layer can be wound and rotated and folded around at least the stacking direction of each interpenetrating component as the axis direction; when the panel with a fixed length is in the unfolded state and When the folded state is switched, the interpenetrating component is adapted to the panel of the fixed length, and the total volume of the interpenetration is changed.
  • the interpenetrating component includes a sheet-like laminate, the cross-sectional shape of which includes a fan shape or an oval shape.
  • the embodiments of the present application also provide a safety outward-folding panel protection layer, including springs, the number of which is multiple, and every two springs are wound side by side with each other, and extend in turn in the side-by-side direction.
  • the radius of the spring is greater than or equal to the minimum folding radius of curvature of the supported panel, and the formed panel protection layer can safely fold the supported panel around each spring.
  • it further comprises a flexible layer, which is laminated on a spring layer where a plurality of the springs are threaded and wound side by side, or is threaded or glued.
  • the spring includes any one of metal, hard plastic, and hard composite material.
  • the embodiments of the present application also provide a safety inward-folding panel protection layer, which includes a metal strip member and a fabric member, the metal strip member includes a curved laminated spring and a linear metal strip, the fabric The component includes cloth.
  • Every two of the springs are wound side by side with each other, and the cloth is attached to one side of the spring that is not fully expanded, and is covered by each layer of the spring or Part of the layer strips are pierced, and each of the metal strips is pierced in sequence at the intersection of every two adjacent springs under the cloth, or pierced in sequence at each exposed through the cloth. Part of the spring hole.
  • the diameter of the metal strip has a certain length, and the certain length is when the supported panel is safely folded inward, the radius of the cavity formed by the panel protective layer at the fold is greater than or equal to the minimum fold of the supported panel The radius of curvature.
  • it further comprises a non-porous metal sheet or a perforated metal sheet, the metal sheet covering the cloth is connected in a laminated structure, and the perforated metal sheet is a metal sheet with discontinuous grid holes distributed, so The local tension of the supported panel is released through the intermittent grid holes.
  • an embodiment of the present application further provides a display panel device, including any one of the above-mentioned panel protection layers, and further comprising a supported panel, the supported panel being a flexible display screen, and the panel protection layer Laying on the back of the flexible display screen.
  • the laying of the panel protection layer includes all laying or partial laying of spaced segments in the folding direction.
  • the panel protection layer when the panel protection layer includes any one of the above-mentioned spring layer types, it is configured as a flexible substrate, which can be integrated into a flexible display screen.
  • variable-volume mutual penetration technical means overcomes the problem of excessive squeezing of the flexible display caused by the difficult adaptation of the volume after folding, and thus achieves the technology of protecting the flexible display from damage Effect: Because the folded volume of the same-volume interpenetrating component under the external fold must be smaller than the superimposed volume of the same-volume solid part, so a smaller folding radius can be obtained. In addition, since more folds can be achieved, the number of folds of the overall flexible display screen is increased, the service life of the flexible display screen is prolonged, and the variable volume folding radius is small, rigid support and more folding points can be realized. , The perfect combination of technical effects. It is advanced and innovative and will contribute to the rapid popularization of flexible displays.
  • FIG. 1 is a three-dimensional schematic diagram of a display panel device in an unfolded state according to an exemplary embodiment of the present application.
  • FIG. 2 is a three-dimensional schematic diagram of a display panel device in a folded state according to an exemplary embodiment of the present application.
  • FIG. 3 is a schematic diagram of the structure of two interspersed components of the display panel device provided by an exemplary embodiment of the present application.
  • FIG. 4 is a perspective schematic diagram of another display panel device in a safe outward-folding unfolded state according to an exemplary embodiment of the present application.
  • FIG. 5 is a perspective schematic diagram of another display panel device in a safe outward folding state according to an exemplary embodiment of the present application.
  • FIG. 6 is a schematic cross-sectional view of yet another display panel device in a safe inwardly folded unfolded state according to an exemplary embodiment of the present application.
  • FIG. 7 is a schematic cross-sectional view of another display panel device in a safe inwardly folded state according to an exemplary embodiment of the present application.
  • FIG. 8 is a schematic cross-sectional view of still another display panel device in a safe inwardly folded unfolded state according to an exemplary embodiment of the present application.
  • FIG. 9 is a schematic cross-sectional view of still another display panel device in a safe inwardly folded state according to an exemplary embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of one of the perforated metal sheets of the display panel device provided by an exemplary embodiment of the present application.
  • FIG. 11 is a three-dimensional schematic diagram of another display panel device in an unfolded state according to an exemplary embodiment of the present application.
  • the display panel device includes a safety outward-folding panel protection layer 3, which includes springs 30, and the number of springs 30 is large.
  • a safety outward-folding panel protection layer 3 which includes springs 30, and the number of springs 30 is large.
  • Each two of the springs 30 are wound side by side with each other and extend in turn in the side-by-side direction.
  • the spring radius r is greater than or equal to the minimum folding curvature radius Rmin of the supported panel, and the panel protection layer 2 is formed
  • the supported panel can be safely folded outward around each of the springs 30.
  • the springs 30 are layer-by-layer connected and have gaps in a laminated structure, adjacent springs 30 can overlap with each other through the gaps, so their volume can change with the shape.
  • a plurality of the springs 30 pierce each other side by side to form a spring layer, and the spring layer adapts to the morphological change of the flexible display screen, and The adaptation can be used for the change and conversion of the winding volume, thereby completing the task of protecting the flexible display screen 20 during the folding and unfolding process.
  • the safety outer-folding panel protection layer 3 when the safety outer-folding panel protection layer 3 is in the unfolded state, a plurality of the springs 30 that pierce each other side by side are pierced to form a flat spring layer, and the flexible display screen 20 is laid on the flat spring layer .
  • the plane spring layer can be, but not limited to, glued and supported on a plane with the flexible display screen 20 by soft glue.
  • the safe outward-folding panel protection layer 3 is in the outwardly folded state, the volume of the supporting space contained by the flexible display screen 20 needs to be reduced, and the plurality of springs 30 that are wound side by side move closer to each other to form a support Inner arc.
  • the current flexible display screen 20 has a thickness of 0.1 mm to 0.66 mm and a folding radius of 1 mm.
  • the precision spring 30 can achieve a smaller size with a wire diameter of 0.15 mm and a radius of 0.5 mm.
  • the folded volume of the insertion component 21 of the same volume after being folded must be smaller than the superimposed volume of a solid part of the same volume.
  • the spring 30 has a simple structure, and the spring 30 can be made smaller in volume and preferably pierced.
  • the method can further reduce its volume, so that a smaller folding radius can be obtained, but the smaller folding radius includes but is not limited to the spring radius r, which should meet the minimum folding curvature greater than or equal to the flexible display screen 20
  • the radius Rmin is required to better protect the flexible display screen 20, and at the same time, it can be folded with a thinner thickness.
  • the number of folding times of the entire flexible display screen 20 is increased, and the service life of the flexible display screen 20 is prolonged.
  • a flexible layer 31 is added to the safety outer-folding panel protection layer 3, and the flexible layer 31 is laminated on a spring layer where a plurality of the springs 30 are wound side by side, or is penetrated. Or glued.
  • the display panel device provided by an exemplary embodiment of the present application includes a panel protection layer 2, and the panel protection layer 2 is used to carry the flexible display screen 20, so that the flexible display screen 20 is folded and unfolded during the entire bending process. , Its size remains unchanged, so that the flexible display screen 20 is prevented from being pushed up or squeezed.
  • the display panel device provided by an embodiment of the present application includes a panel protection layer 2.
  • the panel protection layer 2 includes an interpenetrating member 21, which is a layer Layers are connected and there is a laminated structure with gaps.
  • the interpenetrating members 21 of every two laminated structures are arranged side by side with each other, and are successively pierced and extended along the side-by-side direction.
  • the formed panel protection layer 2 can be wound and wound at least
  • the stacking direction of each interpenetrating component 21 is the axis direction rotation and folding; when the fixed-length panel is switched between the unfolded state and the folded state, the intersecting component 21 is adapted to the fixed-length panel to complete the penetration The total volume change conversion.
  • the interpenetrating component 21 is a laminated structure connected layer by layer with spaced gaps, adjacent interpenetrating components 21 can be interspersed and overlapped with each other through the spaced gaps, so their volume can be changed according to the shape.
  • a plurality of the interpenetrating members 21 are arranged side by side to pass through each other to form an interpenetration layer, and the interpenetration layer is adapted to the morphological changes of the flexible display screen 20 surface.
  • the configuration can be used to change the total volume of the wear, and then complete the task of protecting the flexible display screen 20 during the folding and unfolding process.
  • the panel protection layer 2 when the panel protection layer 2 is in the unfolded state, a plurality of the interpenetrating members 21 that are interspersed side by side are interspersed to form an interpenetrating plane layer, and the flexible display screen 20 is laid on the interpenetrating plane layer, and the interpenetrating plane layer is interspersed.
  • the plane layer can be but not limited to be glued to the flexible display screen 20 and supported on a plane by a soft glue.
  • the panel protection layer 2 When the panel protection layer 2 is in the folded state, the volume of the supporting space contained by the flexible display screen 20 that is folded outward needs to be reduced, and the plurality of intersecting parts 21 arranged side by side move closer to each other. Form the support inner arc surface.
  • the interpenetrating component 21 includes a sheet-like laminate 211, the cross-sectional shape of which includes a fan shape or an oval shape. It can be understood that, since the sheet-like laminates 211 intersecting each other are sheet-shaped, part of the weight of the interpenetrating member 21 can be reduced.
  • the cross-section is a sector, a plurality of the sheet-like laminates 211 interspersed side by side with each other, the bottom edges of the adjacent sectors including the straight edges can be coplanar with each other, and the formation of a flat layer is more conducive to the bonding of the flexible display 20 Laying, in other words, the bonding of the plane and the plane is more conducive to protecting the flexible display screen 20.
  • the cross-section is elliptical, it is more conducive to reduce the thickness of the inserted support surface, and the sheet-like laminate 211 can also be a central hollow structure to reduce weight. Similarly, in other embodiments, it may also be the sheet laminate 211 with only a linear frame structure.
  • the display panel device includes a safety outward-folding panel protection layer 3, which includes a spring 30.
  • a spring 30 There are more than 30 springs. Every two of the springs 30 pierce each other side by side, and extend in turn in the side-by-side direction.
  • the spring radius r is greater than or equal to the minimum folding curvature radius Rmin of the supported panel, which is formed by
  • the panel protection layer 2 allows the supported panel to be safely folded outward around each of the springs 30.
  • the springs 30 are layer-by-layer connected and have gaps in a laminated structure, adjacent springs 30 can overlap with each other through the gaps, so their volume can change with the shape.
  • a plurality of the springs 30 pierce each other side by side to form a spring layer, and the spring layer adapts to the morphological change of the flexible display screen, and The adaptation can be used for the change and conversion of the winding volume, thereby completing the task of protecting the flexible display screen 20 during the folding and unfolding process.
  • the safety outer-folding panel protection layer 3 when the safety outer-folding panel protection layer 3 is in the unfolded state, a plurality of the springs 30 that pierce each other side by side are pierced to form a flat spring layer, and the flexible display screen 20 is laid on the flat spring layer .
  • the plane spring layer can be, but not limited to, glued and supported on a plane with the flexible display screen 20 by soft glue.
  • the safe outward-folding panel protection layer 3 is in the outwardly folded state, the volume of the supporting space contained by the flexible display screen 20 needs to be reduced, and the plurality of springs 30 that are wound side by side move closer to each other to form a support Inner arc.
  • the current flexible display screen 20 has a thickness of 0.1 mm to 0.66 mm and a folding radius of 1 mm.
  • the precision spring 30 can achieve a smaller size with a wire diameter of 0.15 mm and a radius of 0.5 mm.
  • the folded volume of the insertion component 21 of the same volume after being folded must be smaller than the superimposed volume of a solid part of the same volume.
  • the spring 30 has a simple structure, and the spring 30 can be made smaller in volume and preferably pierced.
  • the method can further reduce its volume, so that a smaller folding radius can be obtained, but the smaller folding radius includes but is not limited to the spring radius r, which should meet the minimum folding curvature greater than or equal to the flexible display screen 20
  • the radius Rmin is required to better protect the flexible display screen 20, and at the same time, it can be folded with a thinner thickness.
  • the number of folding times of the entire flexible display screen 20 is increased, and the service life of the flexible display screen 20 is prolonged.
  • the safety outer-folding panel protection layer 3 is additionally provided with a flexible layer 31, which is laminated on a plurality of the springs 30 and is wound side by side. On the same spring level, it may be threaded or glued.
  • the spring 30 includes but is not limited to any one of metal, hard plastic, and hard composite material.
  • a flat flexible layer 31 is added.
  • the flexible layer 31 can be a flannel with very short fluff, a very thin ligament, or a very thin steel sheet; a plurality of the springs 30 are wound side by side.
  • the flexible layer 31 is preferably laminated on, including but not limited to, the fully expanded spring layer.
  • the fully expanded spring layer refers to the fully expanded spring layer between adjacent springs 30, That is, each layer of adjacent springs 30 intersects at one point; of course, the flexible layer 31 can also be laminated on the spring layer that is not fully expanded.
  • the threading can be either that the flexible layer 31 is pierced by each layer or part of the layer of each spring 30, or it can be connected by glueing by laying soft glue.
  • the display panel device includes a safety inner folding panel protection layer 4, which includes a metal strip member 41 and a fabric
  • the member 42, the metal strip member 41 includes a curved laminated spring 30 and a linear metal strip 411, and the fabric member 42 includes a cloth 421.
  • Every two of the springs 30 pierce each other side by side, and extend sequentially in the side-by-side direction.
  • the cloth 421 is attached to one side of the spring 30 that is not fully expanded, and is covered by each of the springs 30.
  • a layer of strips or part of a layer of strips are pierced, and each of the metal strips 411 is sequentially pierced at the intersection of every two adjacent springs 30 under the cloth 421.
  • the diameter of the metal strip 411 has a certain length, and the certain length is that when the supported panel is safely folded inward, the radius R" of the cavity formed by the panel protection layer 2 at the fold is greater than or equal to the supported panel.
  • the minimum folding radius of curvature of the panel Rmin is the minimum folding radius of curvature of the panel Rmin.
  • the spring 30 wound by the metal strip member 41 is a layered structure connected layer by layer with spaced gaps.
  • the adjacent springs 30 can pass through each other through the spaced gaps and overlap each other, so their volume Can change with shape.
  • a plurality of the springs 30 are pierced side by side to form a spring layer, which is preferably interspersed by the fabric member 42, such as the cloth 421 Woven into a side layer, the metal strip 411 can be further inserted into this side layer to form a thinner fixed-length rigid adhesion layer, and the spring layer under the fixed-length rigid adhesion layer can be adapted to the flexible display
  • the shape of the screen layer is changed, and it can be adapted to increase or decrease the volume of the winding, so as to complete the task of protecting the flexible display screen 20 during the folding or unfolding process.
  • a plurality of side-by-side piercing springs 30 are not fully unfolded, that is, each layer between adjacent springs 30 intersects at two points.
  • the cloth 421 is pierced by each layer or part of the layer of each spring 30 in the spring layer plane, and each of the metal strips 411 is movably pierced through in turn
  • the flexible display screen 20 is laid on the thinner fixed-length rigid adhesion layer.
  • the flexible display screen 20 When the safety inward-folding panel protection layer 4 is in the inwardly folded state, the flexible display screen 20 is folded inwardly, and the volume of the spring layer supporting the flexible display screen 20 at the inwardly folded area needs to be enlarged.
  • the fixed-length rigid adhesion layer deformed with the flexible display screen 20 forms a supporting outer arc surface under the combined action of the elastic force of the metal strip member 41 and the tensile force of the fabric member 42, and at the same time, the plurality of spring layers
  • the two springs 30 that are wound side by side move away from each other to match the supporting outer arc surface.
  • the "inner” and “outer” of the inward fold and the supporting outer arc surface are relative to the main component, that is, the display side of the flexible display screen 20 as a reference, and the “inward fold” is Fold to the side of the display side of the flexible display screen 20, and the “supporting outer arc surface” refers to the support outer arc surface constructed on the back side support member of the flexible display screen 20 after being folded inward. Since the diameter of the metal strip 411 has a certain length, the certain length is when the supported panel is safely folded inward, the radius of the cavity R′′ formed by the panel protective layer 2 at the fold is greater than or equal to the supported panel The panel can be the minimum folding radius of curvature Rmin of the flexible display screen 20.
  • the current spring 30 can be made into a smaller size with a wire diameter of 0.15 mm and a radius of 0.5 mm, due to its simple structure and a smaller radius Therefore, a thinner thickness can be folded. In addition, because the radius of the spring 30 can be made smaller, more folding can be achieved, thereby increasing the number of folding times of the overall flexible display screen 20 and extending the flexible display screen 20 life span.
  • the force of the piercing spring layer is a movable parallel force, and the cloth layer force is always parallel to the spring layer force.
  • the formed cavity support structure can withstand a certain external pressure, Not afraid of being crushed artificially. Because in the inner folding area, each of the springs 30 is penetrated by the cloth 421 at a certain position, and is stably controlled by the double parallel force.
  • the arc-shaped double parallel forces are close to each other, and the movable spring force direction During the translation process of the cloth force, the metal strip 411 is tied tightly on the arc-shaped surface between the double arc-shaped parallel forces, and the more it is pressed, the tighter and firmer it is, so other auxiliary protective structures can be omitted.
  • the display panel device includes a safety inwardly foldable panel protection layer 4, which includes a metal strip member 41 and a fabric member 42, so
  • the metal strip member 41 includes a curved laminated spring 30 and a linear metal strip 411, and the fabric member 42 includes a cloth 421.
  • Every two of the springs 30 pierce each other side by side, and extend sequentially in the side-by-side direction.
  • the cloth 421 is attached to one side of the spring 30 that is not fully expanded, and is covered by each of the springs 30.
  • One layer of strips or part of the layer of strips are pierced, and each of the metal strips 411 is sequentially pierced through each part of the spring hole exposed through the cloth 421.
  • the diameter of the metal strip 411 has a certain length, and the certain length is that when the supported panel is safely folded inward, the radius R" of the cavity formed by the panel protection layer 2 at the fold is greater than or equal to the supported panel.
  • the minimum folding radius of curvature of the panel Rmin is the minimum folding radius of curvature of the panel Rmin.
  • the spring 30 wound by the metal strip member 41 is a layered structure connected layer by layer with spacing gaps.
  • the adjacent springs 30 can pass through each other through the spacing gaps and overlap each other.
  • the volume can change with the shape.
  • a plurality of the springs 30 are pierced side by side to form a spring layer, which is preferably interspersed by the fabric member 42, such as the cloth 421 Woven into a side layer, the metal strip 411 can be further inserted into this side layer to form a thinner fixed-length rigid adhesion layer, and the spring layer under the fixed-length rigid adhesion layer can be adapted to the flexible display
  • the shape of the screen layer is changed, and it can be adapted to increase or decrease the volume of the winding, so as to complete the task of protecting the flexible display screen 20 during the folding or unfolding process.
  • a plurality of side-by-side piercing springs 30 are not fully unfolded, that is, each layer between adjacent springs 30 intersects at two points.
  • the cloth 421 is pierced by each layer or part of each layer of the spring 30 in the spring layer plane, and each of the metal strips 411 is pierced in turn in the spring layer plane.
  • Each through the spring holes exposed on the cloth 421, the flexible display screen 20 is laid on the thinner fixed-length rigid attachment layer.
  • the flexible display screen 20 When the safety inward-folding panel protection layer 4 is in the inwardly folded state, the flexible display screen 20 is folded inwardly, and the volume of the spring layer supporting the flexible display screen 20 at the inwardly folded area needs to be enlarged.
  • the fixed-length rigid adhesion layer deformed with the flexible display screen 20 forms a supporting outer arc surface under the combined action of the elastic force of the metal strip member 41 and the tensile force of the fabric member 42.
  • the spring layer is more The two springs 30 pierced side by side move away from each other to match the supporting outer arc surface.
  • the "inner” and “outer” of the inward fold and the supporting outer arc surface are relative to the main component, that is, the display side of the flexible display screen 20 as a reference, and the “inward fold” is Fold to the side of the display side of the flexible display screen 20, and the “supporting outer arc surface” refers to the support outer arc surface constructed on the back side support member of the flexible display screen 20 after being folded inward. Since the diameter of the metal strip 411 has a certain length, the certain length is when the supported panel is safely folded inward, the radius of the cavity R′′ formed by the panel protective layer 2 at the fold is greater than or equal to the supported panel The panel can be the minimum folding radius of curvature Rmin of the flexible display screen 20.
  • the current spring 30 can be made into a smaller size with a wire diameter of 0.15 mm and a radius of 0.5 mm, due to its simple structure and a smaller radius Therefore, a thinner thickness can be folded. In addition, because the radius of the spring 30 can be made smaller, more folding can be achieved, thereby increasing the number of folding times of the overall flexible display screen 20 and extending the flexible display screen 20 life span.
  • the safety inner-folding panel protective layer 4 is additionally provided with a non-porous metal sheet or a perforated metal sheet, and the metal sheet 43 covers the cloth 421.
  • the laminated structure is connected, the perforated metal sheet is a metal sheet 43 distributed with discontinuous grid holes 432, and the local tension of the supported panel is released through the discontinuous grid holes 432.
  • adding an elastic thin metal layer that is, enhancing the supporting force and pulling force of the panel protection layer 2
  • the metal sheet 43 includes, but is not limited to, an ultra-thin steel sheet.
  • the laminated connection and the connection with the flexible display screen 20 include, but are not limited to, the connection by soft glue.
  • the intermittent grid holes 432 can further eliminate glue.
  • the local tension of the integrated flexible display screen 20 enables the flexible display screen 20 to be flatter.
  • the display panel device of FIGS. 1 to 11 which includes any of the above-mentioned panel protection layers 2, and also includes a supported panel, and the supported panel includes, but is not limited to, a flexible display The screen 20, the panel protection layer 2 is laid on the back of the flexible display screen 20.
  • the interpenetrating component 21 of the basic element has a simpler structure, low cost, and high production efficiency.
  • its better threading method can further reduce the volume after threading, thereby enabling more folding with smaller spacing;
  • N folding times multiplied by N threshold number of folding times the maximum number of times the flexible display 20 is folded overall, thereby increasing the service life of the entire screen; achieving a variable volume folding radius, a small rigid support and more folding points , The perfect combination of technical effects. It will be widely used in wearable display devices, desktop display devices and mobile display devices.
  • the laying of the panel protection layer 2 includes all laying or partial laying of spaced segments in the folding direction. It is understandable that the partial paving may be pavement at equal intervals, or pavement at unequal intervals, or only at both ends, or only at the center.
  • any of the above-mentioned spring layer type panel protection layers is included, it is constructed as a flexible substrate, which can be integrated into a flexible substrate. Display 20. Since the diameter of the spring 30 can be made smaller, the thickness of the wound spring layer can be smaller. It is preferable that the cloth 421 and the metal strip 411 can be thinner and thinner to form a The flexible substrate may have a thinner thickness, so that the flexible display screen 20 containing the flexible substrate is safer in use.
  • the flexible display screen 20 can have display and touch functions at the same time.
  • the display panel device described in this application is installed on an electronic product that can be opened and closed, and the electronic product includes but not limited to mobile phones, notebooks, tablet computers, POS machines, car computers, cameras, all-in-one computers, televisions, advertising machines, and medical equipment Display screen, robot display screen, etc.

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Abstract

提供多种面板保护层及显示面板装置。一种保护层（2）包括穿插部件（21），其为层层相连且有间隔空隙的层叠结构，每两个穿插部件（21）并排相互穿设延伸，形成的面板保护层（2）可卷绕，可折叠；在展开与折叠切换时，穿插部件（21）适配完成穿设总体积的变化转换。一种安全外折式保护层（3）包括多个并排穿绕的弹簧（30）且依次穿绕延伸，弹簧（30）半径大于或等于被支撑的面板（20）的最小折叠曲率半径，形成的面板保护层（3）可使被支撑的面板（20）绕每一弹簧（30）安全外折。一种安全内折式保护层（4）包括并排穿绕的弹簧层穿设一布料层（421），金属条（411）穿设于布料层（421）上的弹簧孔或布料层（421）下的相邻弹簧外的交叉处，金属条（411）直径大小适配安全内折形成的最小空腔直径大小。还提供含有面板保护层的显示面板装置。

Description

面板保护层及显示面板装置 技术领域
本申请涉及电子技术领域，具体涉及一种面板保护层及显示面板装置。
 背景技术
随着科学技术的飞速发展，柔性显示屏将融入我们的生活中，柔性显示屏相较于传统屏幕有较好的柔韧性、体积轻薄、可弯曲折叠、收藏易携等特性；在穿戴显示设备、桌面显示设备及移动显示设备中均将发挥巨大作用。然而柔性显示屏也有脆弱的一面，比如无法承受较大压缩力和较大拉伸力等，否则由于过度施力会造成柔性显示屏的损坏，因而柔性显示屏在搬移和应用中、对其所支撑的活动结构有苛刻的要求。
当下对于柔性显示屏安全保护的专利中，特别是深度弯曲的折叠方式中，较多地是采用了折叠后的实体支撑结构作体积退让滑动处理，以适配柔性显示屏的长度保持定值无变化，进而使得折叠后的硬性支撑结构形成的折叠半径较大。此外，定点区域的长期折叠也使得整体柔性显示屏的使用寿命降低。
 技术问题
柔性显示屏在搬移和应用中、对其所支撑的活动结构有苛刻的要求。当下对于柔性显示屏安全保护的专利中，特别是深度弯曲的折叠方式中，较多地是采用了折叠后的实体支撑结构作体积退让滑动处理，以适配柔性显示屏的长度保持定值无变化，进而使得折叠后的硬性支撑结构形成的折叠半径较大。此外，定点区域的长期折叠也使得整体柔性显示屏的使用寿命降低。
 技术解决方案
本申请另辟新径，设计开发从另一技术角度诠释柔性显示屏折叠保护方式，至少解决上述之一问题，其实施方式采用如下技术方案。
第一方面，本申请实施例提供了一种面板保护层，包括穿插部件，所述穿插部件为层层相连且有间隔空隙的层叠结构，每两个层叠结构的所述穿插部件并排相互穿设在一起，沿并排方向依次穿设延伸，所形成的面板保护层可卷绕，并且绕至少每一所述穿插部件的层叠方向为轴心方向旋转折叠；当定值长度的面板在展开状态与折叠状态切换时，所述穿插部件适配所述定值长度的面板、完成穿设总体积的变化转换。
在一种实施方式中，所述穿插部件包括片状层叠件，其截面形状包括扇形或椭圆形。
第二方面，本申请实施例还提供了一种安全外折式面板保护层，包括弹簧，其数量为多个，每两个所述弹簧并排相互穿绕在一起，沿并排方向依次穿绕延伸，所述弹簧半径大于或等于被支撑的面板的最小折叠曲率半径，所形成的面板保护层可使所述被支撑的面板绕每一所述弹簧安全外折。
在一种实施方式中，还包括柔性层，所述柔性层层叠于多个所述弹簧并排穿绕在一起的弹簧层面上、或被穿设或胶接。
在一种实施方式中，所述弹簧包括金属、硬质塑料和硬质复合材料中的任一种。
第三方面，本申请实施例还提供了一种安全内折式面板保护层，包括金属条构件和织品构件，所述金属条构件包括曲线层叠式的弹簧和直线式的金属条，所述织品构件包括布料。
每两个所述弹簧并排相互穿绕在一起，沿并排方向依次穿绕延伸，所述布料附着于非完全展开下的所述弹簧一侧面，并且被每一所述弹簧的每一层条或部分层条所穿设，每一所述金属条依次穿设于所述布料下的每两个相邻所述弹簧外的交叉处，或者依次穿设于每一穿过所述布料上露出的局部所述弹簧孔。
所述金属条的直径有一定长度，所述一定长度为被支撑的面板安全内折时，在折叠处使所述面板保护层形成的空腔半径大于或等于所述被支撑的面板的最小折叠曲率半径。
在一种实施方式中，还包括无孔金属片或有孔金属片，所述金属片覆盖所述布料呈层叠结构连接，所述有孔金属片为分布有间断格栅孔的金属片，所述被支撑的面板的局部张力通过所述间断格栅孔得以释放。
第四方面，本申请实施例还提供了一种显示面板装置，包括如上任一所述面板保护层，还包括被支撑的面板，所述被支撑的面板为柔性显示屏，所述面板保护层铺设于所述柔性显示屏的背面。
在一种实施方式中，所述面板保护层的铺设包括全部铺设或折叠方向上的间隔分段的部分铺设。
在一种实施方式中，当包括如上弹簧层式任一所述面板保护层时，其被构造为柔性基板，可一体式做入柔性显示屏。
 有益效果
本申请实施例中提供的一个或多个技术方案，至少具有如下技术效果或优点。因为采用了可变体积的相互穿设的技术手段，所以克服了折叠后体积较难适配引起的对柔性显示屏过度压挤问题，进而达到了保护柔性显示屏、使其免受损伤的技术效果；因为在外折下同体积穿插部件穿设折叠后的体积一定小于同体积实体件叠合体积，因而可以得到较小的折叠半径。此外，由于能够实现更多处的折叠，进而提高了整体柔性显示屏的折叠次数，延长了柔性显示屏的使用寿命，达到了可变体积的折叠半径较小的硬性支撑与较多处实现折叠、完美结合的技术效果。具有先进开创性，将为柔性显示屏的迅速普及作贡献。
 附图说明
图1是本申请示例性实施例提供的一种显示面板装置展开状态时的立体示意图。
图2是本申请示例性实施例提供的一种显示面板装置折叠状态时的立体示意图。
图3是本申请示例性实施例提供的显示面板装置的其中两种穿插部件的结构示意图。
图4是本申请示例性实施例提供的另一种显示面板装置安全外折式展开状态时的立体示意图。
图5是本申请示例性实施例提供的另一种显示面板装置安全外折式折叠状态时的立体示意图。
图6是本申请示例性实施例提供的又一种显示面板装置安全内折式展开状态时的截面示意图。
图7是本申请示例性实施例提供的又一种显示面板装置安全内折式折叠状态时的截面示意图。
图8是本申请示例性实施例提供的再一种显示面板装置安全内折式展开状态时的截面示意图。
图9是本申请示例性实施例提供的再一种显示面板装置安全内折式折叠状态时的截面示意图。
图10是本申请示例性实施例提供的显示面板装置的其中一种有孔金属片的结构示意图。
图11是本申请示例性实施例提供的更一种显示面板装置展开状态时的立体示意图。
 本发明的最佳实施方式
请一并参阅图4至图5，本申请的另一实施例提供的显示面板装置，所述显示面板装置包括安全外折式面板保护层3，其包括弹簧30，所述弹簧30数量为多个，每两个所述弹簧30并排相互穿绕在一起，沿并排方向依次穿绕延伸，所述弹簧半径r大于或等于被支撑的面板的最小折叠曲率半径Rmin，所形成的面板保护层2可使所述被支撑的面板绕每一所述弹簧30安全外折。详而言之，由于所述弹簧30为层层相连且有间隔空隙的层叠结构，相邻所述弹簧30可以通过间隔空隙彼此相互穿绕重叠，因此其体积可随形而变。由于在所述安全外折式面板保护层3折叠或展开的过程中，多个所述弹簧30并排相互穿绕形成一弹簧层面，其弹簧层面适配所述柔性显示屏面的形态变化，并且适配可作穿绕体积的变化转换，进而完成在折叠及展开过程中的保护柔性显示屏20的任务。例如，当所述安全外折式面板保护层3处于展开状态时，并排相互穿绕的多个所述弹簧30穿设形成一平面弹簧层，所述柔性显示屏20铺设在此平面弹簧层上，其平面弹簧层可以但不限于通过软性胶与所述柔性显示屏20胶连支撑在一平面上。当所述安全外折式面板保护层3处于外折状态时，所述柔性显示屏20所包容的支撑空间体积需缩小，则多个并排穿绕的所述弹簧30之间彼此靠近移动形成支撑内弧面。
当下的所述柔性显示屏20已经能做到厚度0.1毫米至0.66毫米，折叠半径达到1毫米的极致尺寸，精密所述弹簧30可做到线径0.15毫米，半径0.5毫米较小尺寸，因为在外折下同体积穿插部件21穿设折叠后的体积一定小于同体积实体件叠合体积，更由于所述弹簧30自身结构简单，且所述弹簧30体积可以做得较小、且优选的穿绕方式可使得其体积进一步缩小，因而可以得到较小的折叠半径，但所述较小的折叠半径包括但不限于所述弹簧半径r、应满足大于或等于所述柔性显示屏20的最小折叠曲率半径Rmin的要求，以更好地保护所述柔性显示屏20，同时也能以较薄厚度方式实现折叠。此外，由于能够实现更多处的折叠，进而提高了整体柔性显示屏20的折叠次数，延长了柔性显示屏20的使用寿命。
作为一种可选实施例，所述安全外折式面板保护层3增设柔性层31，所述柔性层31层叠于多个所述弹簧30并排穿绕在一起的弹簧层面上、或被穿设或胶接。
 本发明的实施方式
下面将结合本申请示例性实施例中的附图，对本申请示例性实施例中的技术方案进行清楚、完整地描述，显然，所描述的示例性实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的一个示例性实施例提供的显示面板装置包括面板保护层2，所述面板保护层2用于承载柔性显示屏20，使得所述柔性显示屏20在折叠及展开的整个折弯过程中，其尺寸保持不变，从而使所述柔性显示屏20免受顶起或者挤压。
第一方面，请一并参阅图1至图3，本申请的其一实施例提供的显示面板装置包括面板保护层2，所述面板保护层2包括穿插部件21，所述穿插部件21为层层相连且有间隔空隙的层叠结构，每两个层叠结构的所述穿插部件21并排相互穿设在一起，沿并排方向依次穿设延伸，所形成的面板保护层2可卷绕，并且绕至少每一所述穿插部件21的层叠方向为轴心方向旋转折叠；当定值长度的面板在展开状态与折叠状态切换时，所述穿插部件21适配所述定值长度的面板、完成穿设总体积的变化转换。
在本实施例中，由于穿插部件21为层层相连且有间隔空隙的层叠结构，相邻穿插部件21可以通过间隔空隙彼此相互穿插重叠，因此其体积可随形而变。由于在所述面板保护层2折叠或展开的过程中，多个所述穿插部件21并排相互穿设一起形成一穿插层面，其穿插层面适配所述柔性显示屏20面的形态变化，并且适配可作穿设总体积的变化转换，进而完成在折叠及展开过程中的保护柔性显示屏20的任务。例如，当所述面板保护层2处于展开状态时，并排相互穿设的多个所述穿插部件21穿设形成一穿插平面层，所述柔性显示屏20铺设在此穿插平面层上，其穿插平面层可以但不限于通过软性胶与所述柔性显示屏20胶连支撑在一平面上。当所述面板保护层2处于折叠状态时，其一外折下的所述柔性显示屏20所包容的支撑空间体积需缩小，则多个并排穿设的所述穿插部件21之间彼此靠近移动形成支撑内弧面。由于采用了穿插部件21可变体积的相互穿设的技术手段，因此克服了折叠后体积较难适配引起的对柔性显示屏20过度压挤问题，进而达到了保护柔性显示屏20、使其免受损伤的技术效果。
进一步地，请一并参阅图1至图3，作为一种可选实施例，所述穿插部件21包括片状层叠件211，其截面形状包括扇形或椭圆形。可以理解的，由于相互穿插的所述片状层叠件211为片状，因此能够减小所述穿插部件21的部分重量。当截面为扇形时，多个并排相互穿插的所述片状层叠件211，其相邻扇形底边包括直线边彼此可以共面，形成的一平面层更利于所述柔性显示屏20的贴合铺设，换言之，平面与平面的贴合更利于保护柔性显示屏20。当截面为椭圆形时，较利于穿插支撑面的厚度缩小，同时所述片状层叠件211亦可为中心镂空结构进而减轻重量。同理，在其他实施例中，亦可为仅线性框架结构的所述片状层叠件211。
第二方面，请一并参阅图4至图5，本申请的另一实施例提供的显示面板装置，所述显示面板装置包括安全外折式面板保护层3，其包括弹簧30，所述弹簧30数量为多个，每两个所述弹簧30并排相互穿绕在一起，沿并排方向依次穿绕延伸，所述弹簧半径r大于或等于被支撑的面板的最小折叠曲率半径Rmin，所形成的面板保护层2可使所述被支撑的面板绕每一所述弹簧30安全外折。详而言之，由于所述弹簧30为层层相连且有间隔空隙的层叠结构，相邻所述弹簧30可以通过间隔空隙彼此相互穿绕重叠，因此其体积可随形而变。由于在所述安全外折式面板保护层3折叠或展开的过程中，多个所述弹簧30并排相互穿绕形成一弹簧层面，其弹簧层面适配所述柔性显示屏面的形态变化，并且适配可作穿绕体积的变化转换，进而完成在折叠及展开过程中的保护柔性显示屏20的任务。例如，当所述安全外折式面板保护层3处于展开状态时，并排相互穿绕的多个所述弹簧30穿设形成一平面弹簧层，所述柔性显示屏20铺设在此平面弹簧层上，其平面弹簧层可以但不限于通过软性胶与所述柔性显示屏20胶连支撑在一平面上。当所述安全外折式面板保护层3处于外折状态时，所述柔性显示屏20所包容的支撑空间体积需缩小，则多个并排穿绕的所述弹簧30之间彼此靠近移动形成支撑内弧面。
当下的所述柔性显示屏20已经能做到厚度0.1毫米至0.66毫米，折叠半径达到1毫米的极致尺寸，精密所述弹簧30可做到线径0.15毫米，半径0.5毫米较小尺寸，因为在外折下同体积穿插部件21穿设折叠后的体积一定小于同体积实体件叠合体积，更由于所述弹簧30自身结构简单，且所述弹簧30体积可以做得较小、且优选的穿绕方式可使得其体积进一步缩小，因而可以得到较小的折叠半径，但所述较小的折叠半径包括但不限于所述弹簧半径r、应满足大于或等于所述柔性显示屏20的最小折叠曲率半径Rmin的要求，以更好地保护所述柔性显示屏20，同时也能以较薄厚度方式实现折叠。此外，由于能够实现更多处的折叠，进而提高了整体柔性显示屏20的折叠次数，延长了柔性显示屏20的使用寿命。
请一并参阅图4至图5，作为一种可选实施例，所述安全外折式面板保护层3增设柔性层31，所述柔性层31层叠于多个所述弹簧30并排穿绕在一起的弹簧层面上、或被穿设或胶接。
进一步地，所述弹簧30包括但不限于金属、硬质塑料和硬质复合材料中的任一种。
举例而言，增设一平面柔性层31，所述柔性层31可为带有极短绒毛的绒布，亦可为极薄韧带，亦可为极薄钢片；多个所述弹簧30并排穿绕成一弹簧层面，所述柔性层31较佳地层叠于、包括但不限于完全展开下的所述弹簧层面上，其中所言的完全展开的弹簧层为相邻所述弹簧30之间完全展开、即相邻所述弹簧30的每一层条之间彼此相交于一点的状态；当然，所述柔性层31也可层叠于非完全展开下的所述弹簧层面上。所述穿设既可为所述柔性层31被每一所述弹簧30的每一层条或部分层条所穿设，也可为铺设软性胶以胶连方式连接。
第三方面，请一并参阅图6至图7，本申请的又一实施例提供的显示面板装置，所述显示面板装置包括安全内折式面板保护层4，其包括金属条构件41和织品构件42，所述金属条构件41包括曲线层叠式的弹簧30和直线式的金属条411，所述织品构件42包括布料421。
每两个所述弹簧30并排相互穿绕在一起，沿并排方向依次穿绕延伸，所述布料421附着于非完全展开下的所述弹簧30一侧面，并且被每一所述弹簧30的每一层条或部分层条所穿设，每一所述金属条411依次穿设于所述布料421下的每两个相邻所述弹簧30外的交叉处。所述金属条411的直径有一定长度，所述一定长度为被支撑的面板安全内折时，在折叠处使所述面板保护层2形成的空腔半径R″大于或等于所述被支撑的面板的最小折叠曲率半径Rmin。
具体而言，由所述金属条构件41所绕制的所述弹簧30为层层相连且有间隔空隙的层叠结构，相邻所述弹簧30可以通过间隔空隙彼此相互穿绕重叠，因此其体积可随形而变。由于在所述安全内折式面板保护层4折叠或展开的过程中，多个所述弹簧30并排相互穿绕形成一弹簧层，且优选地被所述织品构件42、如所述布料421穿插编织成一侧面层，所述金属条411进一步可穿插于此侧面层中形成一较薄的定长硬性附着层，在所述定长硬性附着层下的所述弹簧层可适配所述柔性显示屏层面的形态变化，并且较佳地适配可作穿绕体积的增、减变化转换，进而能够完成在折叠或展开过程中的保护柔性显示屏20的任务。例如，当所述安全内折式面板保护层4处于展开状态时，多个并排穿绕所述弹簧30在非完全展开即相邻所述弹簧30彼此之间的每一层条相交于两点时所形成的弹簧层平面，所述布料421被所述弹簧层平面中的每一所述弹簧30的每一层条或部分层条所穿设，每一所述金属条411依次活动穿设于所述布料421下的每两个相邻所述弹簧30外的交叉处，所述柔性显示屏20铺设在较薄的所述定长硬性附着层上。当所述安全内折式面板保护层4处于内折状态时，所述柔性显示屏20内折，在内折区域处的支撑所述柔性显示屏20的所述弹簧层体积需扩大，则适配所述柔性显示屏20变形的所述定长硬性附着层、在所述金属条构件41的弹力及所述织品构件42的拉力共同作用下形成支撑外弧面，同时所述弹簧层的多个并排穿绕的所述弹簧30之间彼此远离移动以配合所述支撑外弧面。
其中，所述内折及所述支撑外弧面的“内”、“外”均为相对于主要部件即所述柔性显示屏20的显示侧面作参照物而言的，“内折”即为向所述柔性显示屏20的显示侧面一侧折叠，“支撑外弧面”即为内折后在所述柔性显示屏20的背面侧支撑部件构造的支撑外弧面。由于所述金属条411的直径有一定长度，所述一定长度为被支撑的面板安全内折时，在折叠处使所述面板保护层2形成的空腔半径R″大于或等于所述被支撑的面板、即可为柔性显示屏20的最小折叠曲率半径Rmin。当下所述弹簧30可做到线径0.15毫米，半径0.5毫米较小尺寸，由于其自身结构简单及其半径可以做得较小，所以能够实现较薄厚度的折叠。此外，由于所述弹簧30半径可以做得较小，因此能够实现更多处的折叠，进而提高了整体柔性显示屏20的折叠次数，延长了柔性显示屏20的使用寿命。
另外，值得说明的是穿绕弹簧层力为可移动的平行力，布料层力与所述弹簧层力始终平行，在安全内折时，所形成的空腔支撑结构可承受外界的一定压力、不怕被人为压挤。因为在内折区域下，每一所述弹簧30均被一定位置下的所述布料421所相互穿设、且被双平行力稳固控制，弧形双平行力彼此靠近，在可移动弹簧力向布料力平移过程中，所述金属条411被捆紧在双弧形平行力之间的弧形面上，越压越被捆紧、越牢固，因而可以省略掉其他附属保护结构。
请一并参阅图8至图9，本申请的再一实施例提供的显示面板装置，所述显示面板装置包括安全内折式面板保护层4，其包括金属条构件41和织品构件42，所述金属条构件41包括曲线层叠式的弹簧30和直线式的金属条411，所述织品构件42包括布料421。
每两个所述弹簧30并排相互穿绕在一起，沿并排方向依次穿绕延伸，所述布料421附着于非完全展开下的所述弹簧30一侧面，并且被每一所述弹簧30的每一层条或部分层条所穿设，每一所述金属条411依次穿设于每一穿过所述布料421上露出的局部所述弹簧孔。所述金属条411的直径有一定长度，所述一定长度为被支撑的面板安全内折时，在折叠处使所述面板保护层2形成的空腔半径R″大于或等于所述被支撑的面板的最小折叠曲率半径Rmin。
详而言之，由所述金属条构件41所绕制的所述弹簧30为层层相连且有间隔空隙的层叠结构，相邻所述弹簧30可以通过间隔空隙彼此相互穿绕重叠，因此其体积可随形而变。由于在所述安全内折式面板保护层4折叠或展开的过程中，多个所述弹簧30并排相互穿绕形成一弹簧层，且优选地被所述织品构件42、如所述布料421穿插编织成一侧面层，所述金属条411进一步可穿插于此侧面层中形成一较薄的定长硬性附着层，在所述定长硬性附着层下的所述弹簧层可适配所述柔性显示屏层面的形态变化，并且较佳地适配可作穿绕体积的增、减变化转换，进而能够完成在折叠或展开过程中的保护柔性显示屏20的任务。例如，当所述安全内折式面板保护层4处于展开状态时，多个并排穿绕所述弹簧30在非完全展开即相邻所述弹簧30彼此之间的每一层条相交于两点时所形成的弹簧层平面，所述布料421被所述弹簧层平面中的每一所述弹簧30的每一层条或部分层条所穿设，每一所述金属条411依次穿设于每一穿过所述布料421上露出的局部所述弹簧孔，所述柔性显示屏20铺设在较薄的所述定长硬性附着层上。当所述安全内折式面板保护层4处于内折状态时，所述柔性显示屏20内折，在内折区域处的支撑所述柔性显示屏20的所述弹簧层体积需扩大，则适配所述柔性显示屏20变形的所述定长硬性附着层、在所述金属条构件41的弹力及所述织品构件42的拉力共同作用下形成支撑外弧面，同时所述弹簧层的多个并排穿绕的所述弹簧30之间彼此远离移动以配合所述支撑外弧面。
其中，所述内折及所述支撑外弧面的“内”、“外”均为相对于主要部件即所述柔性显示屏20的显示侧面作参照物而言的，“内折”即为向所述柔性显示屏20的显示侧面一侧折叠，“支撑外弧面”即为内折后在所述柔性显示屏20的背面侧支撑部件构造的支撑外弧面。由于所述金属条411的直径有一定长度，所述一定长度为被支撑的面板安全内折时，在折叠处使所述面板保护层2形成的空腔半径R″大于或等于所述被支撑的面板、即可为柔性显示屏20的最小折叠曲率半径Rmin。当下所述弹簧30可做到线径0.15毫米，半径0.5毫米较小尺寸，由于其自身结构简单及其半径可以做得较小，所以能够实现较薄厚度的折叠。此外，由于所述弹簧30半径可以做得较小，因此能够实现更多处的折叠，进而提高了整体柔性显示屏20的折叠次数，延长了柔性显示屏20的使用寿命。
请一并参阅图8至图10，作为一种可选实施例，所述安全内折式面板保护层4增设无孔金属片或有孔金属片，所述金属片43覆盖所述布料421呈层叠结构连接，所述有孔金属片为分布有间断格栅孔432的金属片43，所述被支撑的面板的局部张力通过所述间断格栅孔432得以释放。可以理解的，增设一弹性薄金属层，也就是增强所述面板保护层2的支撑力和拉力，可以有效地防止所述柔性显示屏20被过度挤压或拉扯，使得所述柔性显示屏20得到更好的保护。所述金属片43包括但不限于极薄钢片，所述层叠连接及与所述柔性显示屏20的连接包括但不限于通过软性胶胶连，所述间断格栅孔432可以进一步消除胶连于一体的所述柔性显示屏20的局部张力，使得所述柔性显示屏20能够更加平整。
第四方面，请一并参阅图1至图11的显示面板装置，其包含有上述任一所述面板保护层2，还包括被支撑的面板，所述被支撑的面板包括但不限于柔性显示屏20，所述面板保护层2铺设于所述柔性显示屏20的背面。
基本元素的穿插部件21结构较简单且成本低，生产效率高，同时其较佳的穿设方式可使穿设后的体积进一步减小，进而能够实现间距较小的更多处折叠；另外，N处的折叠乘以N个阈值折叠次数=柔性显示屏20整体折叠最大寿命次数，进而提高了整屏的使用寿命；达到了可变体积的折叠半径较小的硬性支撑与较多处实现折叠、完美结合的技术效果。必将在包括穿戴显示设备、桌面显示设备及移动显示设备中得到广泛的应用。
请参阅图11，作为一种可选实施例，所述面板保护层2的铺设包括全部铺设或折叠方向上的间隔分段的部分铺设。可以理解的，所述部分铺设可为等距间隔分段铺设，亦可为不等距间隔分段铺设，亦可为仅两端铺设，亦可为仅中央铺设。
请一并参阅图4至图11，作为一种可选实施例，当包含有如上所述弹簧层式的任一所述面板保护层时，其被构造为柔性基板，可一体式做入柔性显示屏20。由于所述弹簧30的直径可以做的较小，因而穿绕的弹簧层厚度即可较小，可优选的所述布料421及所述金属条411均可较薄及较细，进而形成的所述柔性基板可以较薄的厚度，使得含有所述柔性基板的所述柔性显示屏20在使用中更安全。
此外，所述柔性显示屏20同时可具有显示和触控功能。
 工业实用性
本申请所述显示面板装置安装到可开合的电子产品上，所述电子产品包括但不限于手机、笔记本、平板电脑、POS机、车载电脑、相机、一体电脑、电视、广告机、医疗器械显示屏、机器人显示屏等。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式等进行了阐述，但应当理解，本领域普通技术人员可以设计许多其他修改和实施方式，这些修改和实施方式也将落入本公开的原理的精神和范围内。

Claims (10)

  1. 一种面板保护层，其特征在于，包括穿插部件，所述穿插部件为层层相连且有间隔空隙的层叠结构，每两个层叠结构的所述穿插部件并排相互穿设在一起，沿并排方向依次穿设延伸，所形成的面板保护层可卷绕，并且绕至少每一所述穿插部件的层叠方向为轴心方向旋转折叠；当定值长度的面板在展开状态与折叠状态切换时，所述穿插部件适配所述定值长度的面板、完成穿设总体积的变化转换。
  2. 根据权利要求1所述面板保护层，其特征在于，所述穿插部件包括片状层叠件，其截面形状包括扇形或椭圆形。
  3. 一种安全外折式面板保护层，其特征在于，包括弹簧，其数量为多个，每两个所述弹簧并排相互穿绕在一起，沿并排方向依次穿绕延伸，所述弹簧半径大于或等于被支撑的面板的最小折叠曲率半径，所形成的面板保护层可使所述被支撑的面板绕每一所述弹簧安全外折。
  4. 根据权利要求3所述安全外折式面板保护层，其特征在于，还包括柔性层，所述柔性层层叠于多个所述弹簧并排穿绕在一起的弹簧层面上、或被穿设或胶接。
  5. 根据权利要求3所述安全外折式面板保护层，其特征在于，所述弹簧包括金属、硬质塑料和硬质复合材料中的任一种。
  6. 一种安全内折式面板保护层，其特征在于，包括金属条构件和织品构件，所述金属条构件包括曲线层叠式的弹簧和直线式的金属条，所述织品构件包括布料；每两个所述弹簧并排相互穿绕在一起，沿并排方向依次穿绕延伸，所述布料附着于非完全展开下的所述弹簧一侧面，并且被每一所述弹簧的每一层条或部分层条所穿设，每一所述金属条依次穿设于所述布料下的每两个相邻所述弹簧外的交叉处，或者依次穿设于每一穿过所述布料上露出的局部所述弹簧孔；所述金属条的直径有一定长度，所述一定长度为被支撑的面板安全内折时，在折叠处使所述面板保护层形成的空腔半径大于或等于所述被支撑的面板的最小折叠曲率半径。
  7. 根据权利要求6所述安全内折式面板保护层，其特征在于，还包括无孔金属片或有孔金属片，所述金属片覆盖所述布料呈层叠结构连接，所述有孔金属片为分布有间断格栅孔的金属片，所述被支撑的面板的局部张力通过所述间断格栅孔得以释放。
  8. 一种显示面板装置，其特征在于，包括如权利要求1～7任一所述面板保护层，还包括被支撑的面板，所述被支撑的面板为柔性显示屏，所述面板保护层铺设于所述柔性显示屏的背面。
  9. 根据权利要求8所述显示面板装置，其特征在于，所述面板保护层的铺设包括全部铺设或折叠方向上的间隔分段的部分铺设。
  10. 根据权利要求8所述显示面板装置，其特征在于，当包括如权利要求3～7任一所述面板保护层时，其被构造为柔性基板，可一体式做入柔性显示屏。
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