WO2022127463A1 - 柔性支撑板和柔性显示装置 - Google Patents

柔性支撑板和柔性显示装置 Download PDF

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Publication number
WO2022127463A1
WO2022127463A1 PCT/CN2021/130533 CN2021130533W WO2022127463A1 WO 2022127463 A1 WO2022127463 A1 WO 2022127463A1 CN 2021130533 W CN2021130533 W CN 2021130533W WO 2022127463 A1 WO2022127463 A1 WO 2022127463A1
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WO
WIPO (PCT)
Prior art keywords
sub
area
transition
region
support plate
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PCT/CN2021/130533
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English (en)
French (fr)
Inventor
李少茹
汪锐
郭建
郭钟旭
Original Assignee
京东方科技集团股份有限公司
重庆京东方显示技术有限公司
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Application filed by 京东方科技集团股份有限公司, 重庆京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US17/916,136 priority Critical patent/US12274010B2/en
Publication of WO2022127463A1 publication Critical patent/WO2022127463A1/zh

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • 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
    • G09F9/301—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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a flexible support plate and a flexible display device including the flexible support plate.
  • a flexible OLED (Organic Light-Emitting Diode, organic light-emitting diode) display device includes a flexible display panel, and a glass cover plate is attached on the flexible display panel, and the glass cover plate protects the flexible display panel and maintains the strength of the flexible display panel. Because the glass cover has high hardness and low toughness and is brittle after stretching, the surface of the folded flexible display panel needs to be protected by a cover film. In order to ensure the strength of the flexible display panel, a stainless steel support plate is usually attached to the back of the flexible display panel. After the flexible display panel is bent, due to the change of the stress of the film layer and the change of the neutral layer, the film layer separation and cracks are prone to occur at the edge of the bending arc.
  • the purpose of the present disclosure is to overcome the above-mentioned deficiencies of the prior art, and to provide a flexible support plate and a flexible display device including the flexible support plate.
  • a flexible support plate comprising: an opening area and at least one solid area provided on at least one side of the opening area; the opening area includes a middle area and a transition area, and Both the middle area and the transition area are provided with a plurality of through holes, the transition area is arranged between the middle area and the solid area, and the width of the transition area varies with the distance from the middle area increase and decrease.
  • the transition region includes:
  • a plurality of first sub-transition regions each of the first sub-transition regions is arranged between the middle region and the solid region, and the width of the first sub-transition region varies with the distance from the middle region increase and decrease.
  • a boundary line connecting the first sub-transition region and the solid region is set as an arc or a polyline.
  • a plurality of the first sub-transition regions have the same shape and the same area, or a plurality of the first sub-transition regions have the same shape and different areas, or a plurality of the first sub-transition regions have the same shape and different areas.
  • the first sub-transition regions have different shapes and different areas.
  • the transition region further includes:
  • a plurality of second sub-transition regions each of the second sub-transition regions is connected between the first sub-transition region and the solid region, and one end of the second sub-transition region is close to the solid region
  • the width of the portion decreases with increasing distance from the central region.
  • a boundary line connecting the second sub-transition region and the solid region is set as an arc or a polyline.
  • a plurality of the second sub-transition regions have the same shape and the same area, or a plurality of the second sub-transition regions have the same shape and different areas, or a plurality of the second sub-transition regions have the same shape and different areas.
  • the second sub-transition regions have different shapes and different areas.
  • the density of the through holes decreases as the distance from the central region increases.
  • the density of the through holes in the middle region is equal to or greater than the density of the through holes in the plurality of first sub-transition regions, and the second sub-transition region The density of the through holes is smaller than the density of the through holes of the first sub-transition region.
  • the cross-sectional area of the through hole decreases as the distance from the central region increases.
  • the cross-sectional area of the through holes in the middle region is equal to or greater than the cross-sectional area of the through holes in the plurality of first sub-transition regions, and the second sub-transition regions have cross-sectional areas.
  • the cross-sectional area of the through holes in the transition region is smaller than the cross-sectional area of the through holes in the first sub-transition region.
  • a flexible display device including the flexible support plate described in any one of the above.
  • the flexible display device further includes:
  • a flexible display panel disposed on one side of the flexible support plate, the flexible display panel includes a bending area and a flat area, and a connection area connected between the bending area and the flat area, the bending area The bending area is arranged opposite to the middle area of the flexible support plate, and the connection area is arranged opposite to the transition area of the flexible support plate.
  • the flexible support plate of the present disclosure includes an opening area and a solid area that are connected to each other, the opening area includes a middle area and a transition area, both the middle area and the transition area are provided with a plurality of through holes, and the transition area is arranged in the middle area and the solid area.
  • the width of the transition area decreases with the increase of the distance from the central area, so that the transition area forms a gradually narrowing structure, so that the deformation of the transition area is gradual during bending, and the stress is also gradual without appearing
  • the sudden change that is, the stress changes relatively uniformly, avoids hard corner bending due to the sudden change of stress during bending, thereby avoiding the problems of film separation and cracks; moreover, it can be applied to flexible display devices with small bending radius.
  • FIG. 1 is a schematic structural diagram of a flexible support plate in the related art.
  • FIG. 2 is a schematic structural diagram of the flexible support plate in FIG. 1 after unfolding.
  • FIG. 3 is a schematic structural diagram of a first exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a second exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a third exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a fourth exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a fifth exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a sixth exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a seventh exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 10 is a schematic structural diagram of an eighth exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a ninth example embodiment of a flexible support plate of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a tenth exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 13 is a schematic structural diagram of an eleventh exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a twelfth exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 15 is a schematic structural diagram of a thirteenth exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 16 is a schematic structural diagram of a fourteenth exemplary embodiment of the flexible support plate of the present disclosure.
  • FIG. 17 is a schematic structural diagram of the flexible support plate of the present disclosure after bending.
  • Opening area 21. Middle area; 22. Transition area; 221, First sub-transition area; 222, Second sub-transition area;
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments can be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
  • the same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.
  • a patterned flexible support plate is used, that is, a flexible support plate is used in the flexible support plate.
  • Some patterns are designed and through holes 3 are formed at the bending intermediate position of the plate to increase the ductility and plasticity of the flexible support plate and reduce stress variation.
  • the position where the opening area 2 is connected to the solid area 1 is bent due to the sudden change of stress, that is, the opening area 2 is easy to bend.
  • the solid area 1 is not easy to bend, and a bending angle will be formed at the connection position instead of an arc bending, resulting in film separation and cracks at the transition position between the open area 2 and the solid area 1; and no It is beneficial to be applied to a flexible display device with a smaller bending radius.
  • the flexible support plate may include: an opening area 2 and a At least one solid area 1 on at least one side of the opening area 2; the opening area 2 includes a middle area 21 and a transition area 22, and a plurality of through holes 3 are provided in the middle area 21 and the transition area 22.
  • a transition area 22 is provided between the middle area 21 and the solid area 1 , and the width of the transition area 22 decreases as the distance from the middle area 21 increases.
  • the width of the transition area 22 decreases as the distance from the middle area 21 increases, so that the transition area 22 forms a gradually reduced structure.
  • the deformation of the transition region 22 is gradually changed during bending, and the stress is also gradually changed without sudden change, that is, the stress changes uniformly, so as to avoid hard corner bending due to sudden stress change during bending, thereby avoiding Film separation and crack problems; moreover, it can be applied to flexible display devices with smaller bending radius.
  • the flexible support plate may be set to a rectangle, and the flexible support plate may include an opening area 2 located in the middle of the length direction, and connected to both sides of the opening area 2 of the two physical areas 1.
  • a plurality of through holes 3 are arranged in the opening area 2 , and no through holes 3 are arranged in the solid area 1 .
  • the flexible support plate may be provided in various shapes such as squares and polygons; There are more than one multi-sided setting.
  • the perforated area 2 may include a middle area 21 and a transition area 22, the middle area 21 is set to be rectangular, and the length of the middle area 21 is the same as the width of the flexible support plate, that is, the middle area 21 runs through both ends of the width direction of the flexible support plate.
  • One side of the flexible support plate is provided with a flexible display panel, the bending area of the flexible display panel is opposite to the middle area 21 of the flexible support plate, and the connection area of the flexible display panel is opposite to the transition area 22 of the flexible support plate.
  • the shape of the middle region 21 can also be set to other shapes as required, which will not be repeated here.
  • the transition region 22 may include a plurality of first sub-transition regions 221, and each of the first sub-transition regions 221 is connected between the central region 21 and the solid region 1, that is, a plurality of first sub-transition regions
  • the regions 221 are arranged along the width direction of the flexible support plate, and the width of the first sub-transition region 221 decreases as the distance from the middle region 21 increases.
  • the width of the first sub-transition region 221 refers to the dimension in the width direction of the flexible support plate; It is perpendicular to the connection direction of the physical area 1.
  • the first sub-transition region 221 may be set as an isosceles triangle, and the base of the isosceles triangle and the edge line of the middle region 21 are collinear, so that the width of the first sub-transition region 221 increases with The distance from the middle region 21 increases and decreases, and the boundary line connecting the first sub-transition region 221 and the solid region 1 is formed as a broken line.
  • the first sub-transition region 221 can also be set as an isosceles trapezoid, and the long base of the isosceles trapezoid is collinear with the edge line of the middle region 21, which also makes the first sub-transition region
  • the width of the region 221 decreases as the distance from the middle region 21 increases, and the boundary line connecting the first sub-transition region 221 and the solid region 1 is formed as a broken line.
  • the first sub-transition area 221 can also be set to any triangle or trapezoid, and can also be a pentagon or a polygon, as long as one long side of the pentagon or polygon is collinear with the edge line of the central area 21, and The part of the pentagon or polygon near the solid area 1 is gradually reduced, which can also achieve the purpose of reducing the width of the first sub-transition area 221 as the distance from the central area 21 increases.
  • the boundary between the first sub-transition area 221 and the solid area 1 is a dummy line segment or arc formed by connecting the points closest to the solid area 1 on at least one through hole in the first sub-transition area 221, or It is a dummy line segment or arc formed by connecting with the point at least one through hole in the first sub-transition region 221 that is closest to the point of the solid region 1 at a set distance from the point.
  • the boundary line connecting the first sub-transition region 221 and the second sub-transition region 221 is a dummy line segment or arc formed by connecting the points closest to the second sub-transition region 221 on at least one through hole in the first sub-transition region 221, Or it is a dummy line segment or arc formed by connecting with a point on at least one through hole in the first sub-transition region 221 that is closest to the second sub-transition region 221 at a set distance from a point.
  • the first sub-transition region 221 may be set in a semi-elliptical shape, and the straight side of the semi-elliptical shape is collinear with the edge line of the middle region 21, so that the width of the first sub-transition region 221 increases with the The distance from the middle region 21 increases and decreases, and the boundary line connecting the first sub-transition region 221 and the solid region 1 is formed as an arc.
  • the first sub-transition region 221 may be set to be less than half-ellipse, so that the width of the first sub-transition region 221 decreases as the distance from the middle region 21 increases, And the boundary line connecting the first sub-transition region 221 and the solid region 1 is formed as an arc.
  • the first sub-transition area 221 can also be set as a semi-circle or less semi-circle; the boundary line connecting the first sub-transition area 221 and the solid area 1 can also be set as a parabolic arc, and can also be any arc or Various combinations of arcs; as long as the width of the first sub-transition region 221 decreases as the distance from the middle region 21 increases.
  • the through hole 3 can be a rectangular through hole, the width of the rectangular through hole 3 in the opening area 2 is the same, but the length can be different according to the setting position, for example, a rectangular through hole in the middle area is longer, and the length of the rectangular through hole in the first sub-transition region 221 is shorter.
  • the through holes 3 may be circular through holes, and the diameters of the circular through holes 3 in the opening area 2 may be the same.
  • the shape of the through hole 3 is not limited to the above description.
  • the through hole 3 may also be a waist circular through hole, an oval through hole, a square through hole, and other through holes 3. It belongs to the protection scope of this application.
  • the plurality of first sub-transition regions 221 have the same shape and the same area. In some other example embodiments, the plurality of first sub-transition regions 221 have the same shape but different areas. Referring to FIG. 7 , the shapes of the plurality of first sub-transition regions 221 are all isosceles triangles, but the lengths of the bases of the isosceles triangles are the same, but the heights are different, resulting in different areas of the isosceles triangles. Referring to FIG. 8 , the shapes of the plurality of first sub-transition regions 221 are the same as semi-ellipses, but the axis lengths of the semi-ellipses are different, resulting in different areas of the semi-ellipses.
  • the plurality of first sub-transition regions 221 may also be structures with different shapes and areas.
  • the plurality of first sub-transition regions 221 may be structures in which isosceles isosceles triangles and semi-ellipses are arranged at intervals, that is, one isosceles isosceles triangle and one semi-ellipse, and the two adjacent isosceles isosceles triangles
  • the plurality of first sub-transition regions 221 may also be structures with different shapes and the same area.
  • the specific arrangement of the plurality of first sub-transition regions 221 can be the same as that shown in FIG. 9 , but the area of the isosceles equilateral triangle can be made the same as the area of the semicircle through calculation, which can also avoid film separation and cracks. Purpose.
  • the transition region 22 may further include a plurality of second sub-transition regions 222 , and each second sub-transition region 222 is connected to the first sub-transition region Between 221 and the solid area 1, that is, a plurality of second sub-transition areas 222 are arranged along the width direction of the flexible support plate, and the width of one end of the second sub-transition area 222 close to the solid area 1 increases with the width of the middle area 21. decreases with increasing distance.
  • the width of the second sub-transition region 221 refers to the dimension in the width direction of the flexible support plate; It is perpendicular to the connection direction of the physical area 1.
  • the boundary line connecting the second sub-transition region 222 and the solid region 1 can be set as a semi-elliptical arc, so that the width of one end of the second sub-transition region 222 close to the solid region 1 increases with the width of the middle region 21 decreases as the distance increases.
  • the boundary line connecting the second sub-transition region 222 and the solid region 1 may also be set as a few semi-elliptical arcs, semi-circular arcs, semi-circular arcs, parabolic arcs and other arcs
  • the line can also be any arc or various combined arcs; as long as the width of one end of the second sub-transition region 222 close to the solid region 1 decreases as the distance from the middle region 21 increases.
  • the boundary between the second sub-transition region 222 and the solid region 1 is a dummy line segment or arc formed by connecting the points closest to the solid region 1 on at least one through hole in the second sub-transition region 222, or It is a dummy line segment or arc formed by connecting with a point of at least one through hole in the second sub-transition region 222 that is closest to the point of the solid region 1 at a set distance from the point.
  • the boundary line connecting the second sub-transition area 222 and the solid area 1 can also be set as a broken line, so that the end of the second sub-transition area 222 close to the solid area 1 forms a triangle, which can also make the second sub-transition area 1.
  • the width of the end portion of the region 222 close to the solid region 1 decreases as the distance from the central region 21 increases.
  • the end of the second sub-transition region 222 close to the solid area 1 may also form a trapezoid, a pentagon or a polygon, etc., as long as the trapezoid, pentagon or polygon is close to the solid
  • the tapered shape of the portion on one side of the region 1 enables the width of the end portion of the second sub-transition region 222 close to the solid region 1 to decrease as the distance from the central region 21 increases.
  • the shape of the boundary line connecting the second sub-transition region 222 and the solid region 1 may be the same as the shape of the boundary line connecting the second sub-transition region 222 and the first sub-transition region 221 , for example , the boundary line connecting the second sub-transition area 222 and the solid area 1 can be set as a semi-elliptical arc, and the shape of the edge connecting the second sub-transition area 222 and the first sub-transition area 221 is also set as a semi-elliptical arc;
  • the edge connecting the transition area 222 with the solid area 1 can be set as a polyline, and the shape of the edge connecting the second sub-transition area 222 with the first sub-transition area 221 is also set as a polyline.
  • the edge connecting the second sub-transition region 222 and the first sub-transition region 221 is set as a semicircular arc, a few semi-elliptical arcs, a parabolic arc, etc.
  • the edge connecting the second sub-transition region 222 with the solid region 1 The corresponding settings are semicircular arc, semi-elliptical arc, parabolic arc, etc.
  • the density of the through holes 3 may decrease as the distance from the central region 21 increases.
  • the density of vias 3 may be the same for all vias in the first sub-transition region 221, or the same for all vias in the second sub-transition region 222, but the first sub-transition region
  • the density of the vias in 221, the density of vias in the second sub-transition region 222, and the density of vias in the middle region 21 are different, in the example embodiment shown in FIGS. 10 and 11, the middle region is different.
  • the density of the through holes 3 of 21 is the same as the density of the through holes 3 of the plurality of first sub-transition regions 221 , and the density of the through holes 3 of the second sub-transition region 222 is smaller than that of the first sub-transition region 221 .
  • the density of the through holes 3 in the middle region 21 may also be greater than the density of the through holes 3 in the first sub-transition region 221 , and the density of the through holes 3 in the second sub-transition region 222 is smaller than that of the first sub-transition region 221 .
  • the density of the through holes 3 in the third sub-transition region 22 may be smaller than the density of the through holes 3 in the second sub-transition region 222 when the third sub-transition region 22 is subsequently provided.
  • the density of the through holes 3 may also be gradually changed in the first sub-transition region 221 or in the second sub-transition region 222. For example, referring to FIG. 13 , the density of the through holes 3 in the first sub-transition region 221 The density decreases with increasing distance from the central region 21 .
  • the cross-sectional area of the through hole 3 may decrease as the distance from the central region 21 increases.
  • the cross-sectional area of the through hole 3 may be gradually changed in the first sub-transition region 221 or in the second sub-transition region 222.
  • the through hole 3 is an elongated through hole, and the first sub-transition region
  • the cross-sectional area of the through hole 3 in the transition region 221 decreases as the distance from the middle region 21 increases, and as shown in the figure, the length decreases, of course, the width can also decrease.
  • the cross-sectional area of the through hole 3 can also be that the cross-sectional area of all the through holes in the first sub-transition region 221 is the same, or the cross-sectional area of all the through holes in the second sub-transition region 222 is the same, but the first sub-transition region 222 has the same cross-sectional area.
  • the cross-sectional area of the through hole in the first sub-transition region 221 , the cross-sectional area of the through hole in the second sub-transition region 222 and the cross-sectional area of the through hole in the middle region 21 are different. Referring to FIG.
  • the through hole 3 It is a circular through hole
  • the diameter of the through hole 3 in the middle region 21 is the same as the diameter of the through hole 3 in the plurality of first sub-transition regions 221, and the diameter of the through hole 3 in the second sub-transition region 222 is smaller than that of the first sub-transition region. 221
  • the diameter of the through holes 3 in the middle region 21 may also be larger than the diameters of the through holes 3 in the plurality of first sub-transition regions 221 ; the diameter of the through holes 3 in the second sub-transition region 222 is smaller than that of the first sub-transition region 221
  • the diameter of the through hole 3 of the third sub-transition region may be smaller than the diameter of the through hole 3 of the second sub-transition region 222 .
  • the shape of the boundary line connecting the second sub-transition region 222 and the solid region 1 may be different from the shape of the boundary line connecting the second sub-transition region 222 and the first sub-transition region 221 . For example, as shown in FIG.
  • the second The boundary line connecting the sub-transition area 222 and the solid area 1 can be set as a polyline, and the shape of the boundary line connecting the second sub-transition area 222 and the first sub-transition area 221 is also set as a semicircular arc; or, the second sub-transition area
  • the boundary line connecting the second sub-transition region 222 and the first sub-transition region 221 can be set as a semi-elliptical arc, and the shape of the boundary line connecting the second sub-transition region 222 and the first sub-transition region 221 is also set as a polyline.
  • the above-mentioned example embodiments illustrate that under the condition that the plurality of first sub-transition regions 221 have the same shape and the same area, the plurality of second sub-transition regions 222 may have the same shape and the same area. It is also possible that, as shown in FIG. 16 , in the case where the multiple first sub-transition regions 221 have the same shape and the same area, the multiple second sub-transition regions 222 have the same shape and different areas; The sub-transition regions 222 may be of different shapes and different areas.
  • the multiple second sub-transition regions 222 may be different in shape but have the same area; alternatively, the multiple second sub-transition regions 222 may be Not the same shape and not the same area.
  • the transition region 22 may further include a plurality of third sub-transition regions, each of which is connected between the second sub-transition region 222 and the solid region 1, and The width of the end of the third sub-transition region close to the solid region 1 decreases as the distance from the middle region 21 increases.
  • the boundary line connecting the third sub-transition region 22 and the solid region 1 can be set as an arc or a broken line, and the specific structure of the arc or broken line is as described above, so it is not repeated here.
  • the present exemplary embodiment first provides a flexible display device, and the flexible display device may include the flexible support plate described in any one of the above.
  • the specific structure of the flexible support plate has been described in detail above, therefore, it will not be repeated here.
  • the flexible display device may further include a flexible display panel, the flexible display panel is disposed on one side of the flexible support plate, the flexible display panel includes a bending area and a flat area, and is connected between the bending area and the flat area
  • the bending area of the flexible display panel and the middle area 21 of the flexible support plate are arranged opposite to each other.
  • the so-called relative setting can be that the bending area is directly opposite to the middle area 21, that is, the orthographic projection of the bending area on the flexible support plate.
  • the orthographic projection of the bending area on the flexible support plate is slightly larger or smaller than the middle area 21; and the connection area of the flexible display panel is arranged opposite to the transition area 22 of the flexible support plate, the so-called relative setting can be
  • the connection area is directly opposite to the transition area 22 , that is, the orthographic projection of the connection area on the flexible support plate coincides with the transition area 22 , or the orthographic projection of the connection area on the flexible support plate is slightly larger or smaller than the transition area 22 .
  • the deformation of the transition region 22 of the flexible support plate is gradual, and the stress is also gradual without sudden change, that is, the stress changes relatively uniformly, so as to avoid the sudden change of stress of the flexible support plate during bending. Bending at hard corners, thereby avoiding the problems of film separation and cracking of the flexible display panel; moreover, it can be applied to a flexible display device with a smaller bending radius.
  • the terms “a”, “an”, “the”, “the” and “at least one” are used to indicate the presence of one or more elements/components/etc.; the terms “comprising”, “including” and “Having” is used to indicate an open-ended inclusive meaning and to mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms “first”, “secondary” “ and “Third” etc. are used only as markers, not as restrictions on the number of their objects.

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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

一种柔性支撑板和柔性显示装置。该柔性支撑板包括：开孔区（2）以及设于开孔区（2）的至少一侧的至少一个实体区（1）；在开孔区（2）设置有多个通孔（3），开孔区（2）包括中部区域（21）和过渡区域（22），过渡区域（22）设于中部区域（21）和实体区（1）之间，过渡区域（22）的宽度随着与中部区域（21）的距离的增加而减小。该柔性支撑板在折弯时过渡区域（22）的形变是渐变的，应力也是渐变的而不会出现突变，即应力较为均匀变化，避免弯折时由于应力突变产生硬角折弯，从而避免膜层分离和裂纹问题；且可以应用于较小折弯半径的柔性显示装置。

Description

柔性支撑板和柔性显示装置
交叉引用
本公开要求于2020年12月15日提交的申请号为202011478466.4名称为“柔性支撑板和柔性显示装置”的中国专利申请的优先权，该中国专利申请的全部内容通过引用全部并入本文。
技术领域
本公开涉及显示技术领域，具体而言，涉及一种柔性支撑板和包括该柔性支撑板的柔性显示装置。
背景技术
柔性OLED(Organic Light-Emitting Diode，有机发光二极管)显示装置包括柔性显示面板，在柔性显示面板的上面贴覆玻璃盖板，玻璃盖板保护柔性显示面板并维持柔性显示面板强度。因为玻璃盖板硬度大、韧性小拉伸后易脆，折叠柔性显示面板表面需要使用覆盖膜(Cover film)保护。为了保证柔性显示面板的强度，柔性显示面板背面通常贴附不锈钢支撑板。柔性显示面板弯折后，因膜层应力变化，中性层改变，在弯折弧的边缘位置容易发生膜层分离和裂纹。
需要说明的是，在上述背景技术部分公开的信息仅用于加强对本公开的背景的理解，因此可以包括不构成对本领域普通技术人员已知的现有技术的信息。
公开内容
本公开的目的在于克服上述现有技术的不足，提供一种柔性支撑板和包括该柔性支撑板的柔性显示装置。
根据本公开的一个方面，提供一种柔性支撑板，包括：开孔区以及设于所述开孔区的至少一侧的至少一个实体区；所述开孔区包括中部区域和过渡区域，在所述中部区域和所述过渡区域均设置有多个通孔，所述过渡区域设于所述中部区域和所述实体区之间，所述过渡区域的宽度 随着与所述中部区域的距离的增加而减小。
在本公开的一种示例性实施例中，所述过渡区域包括：
多个第一子过渡区域，各个所述第一子过渡区域均设于所述中部区域和所述实体区之间，且所述第一子过渡区域的宽度随着与所述中部区域的距离的增加而减小。
在本公开的一种示例性实施例中，所述第一子过渡区域与所述实体区连接的分界线设置为弧线或折线。
在本公开的一种示例性实施例中，多个所述第一子过渡区域的形状相同且面积相同，或多个所述第一子过渡区域的形状相同且面积不同，或多个所述第一子过渡区域的形状不同且面积不同。
在本公开的一种示例性实施例中，所述过渡区域还包括：
多个第二子过渡区域，各个所述第二子过渡区域均连接于所述第一子过渡区域与所述实体区之间，且所述第二子过渡区域的靠近所述实体区的一端部的宽度随着与所述中部区域的距离的增加而减小。
在本公开的一种示例性实施例中，所述第二子过渡区域与所述实体区连接的分界线设置为弧线或折线。
在本公开的一种示例性实施例中，多个所述第二子过渡区域的形状相同且面积相同，或多个所述第二子过渡区域的形状相同且面积不同，或多个所述第二子过渡区域的形状不同且面积不同。
在本公开的一种示例性实施例中，所述通孔的密度随着与所述中部区域的距离的增加而减小。
在本公开的一种示例性实施例中，所述中部区域的所述通孔的密度等于或大于多个所述第一子过渡区域的所述通孔的密度，所述第二子过渡区域的所述通孔的密度小于所述第一子过渡区域的所述通孔的密度。
在本公开的一种示例性实施例中，所述通孔的截面积随着与所述中部区域的距离的增加而减小。
在本公开的一种示例性实施例中，所述中部区域的所述通孔的截面积等于或大于多个所述第一子过渡区域的所述通孔的截面积，所述第二子过渡区域的所述通孔的截面积小于所述第一子过渡区域的所述通孔的截面积。
根据本公开的一个方面，提供一种柔性显示装置，包括上述任意一项所述的柔性支撑板。
在本公开的一种示例性实施例中，所述柔性显示装置还包括：
柔性显示面板，设于所述柔性支撑板的一侧，所述柔性显示面板包括折弯区和平面区，以及连接于所述折弯区和所述平面区之间的连接区，所述折弯区与所述柔性支撑板的中部区域相对设置，所述连接区与所述柔性支撑板的过渡区域相对设置。
本公开的柔性支撑板，包括相互连接的开孔区和实体区，开孔区包括中部区域和过渡区域，中部区域和过渡区域均设置有多个通孔，过渡区域设于中部区域和实体区之间，过渡区域的宽度随着与中部区域的距离的增加而减小，使得过渡区域形成逐渐缩小的结构，使得在折弯时过渡区域的形变是渐变的，应力也是渐变的而不会出现突变，即应力较为均匀变化，避免弯折时由于应力突变产生硬角折弯，从而避免膜层分离和裂纹问题；而且，可以应用于较小折弯半径的柔性显示装置。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是相关技术中柔性支撑板的结构示意图。
图2是图1中的柔性支撑板展开后的结构示意图。
图3是本公开柔性支撑板第一示例实施方式的结构示意图。
图4是本公开柔性支撑板第二示例实施方式的结构示意图。
图5是本公开柔性支撑板第三示例实施方式的结构示意图。
图6是本公开柔性支撑板第四示例实施方式的结构示意图。
图7是本公开柔性支撑板第五示例实施方式的结构示意图。
图8是本公开柔性支撑板第六示例实施方式的结构示意图。
图9是本公开柔性支撑板第七示例实施方式的结构示意图。
图10是本公开柔性支撑板第八示例实施方式的结构示意图。
图11是本公开柔性支撑板第九示例实施方式的结构示意图。
图12是本公开柔性支撑板第十示例实施方式的结构示意图。
图13是本公开柔性支撑板第十一示例实施方式的结构示意图。
图14是本公开柔性支撑板第十二示例实施方式的结构示意图。
图15是本公开柔性支撑板第十三示例实施方式的结构示意图。
图16是本公开柔性支撑板第十四示例实施方式的结构示意图。
图17是本公开柔性支撑板折弯后的结构示意图。
附图标记说明：
1、实体区；
2、开孔区；21、中部区域；22、过渡区域；221、第一子过渡区域；222、第二子过渡区域；
3、通孔。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本公开将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。图中相同的附图标记表示相同或类似的结构，因而将省略它们的详细描述。
参照图1和图2所示的相关技术中柔性支撑板的结构示意图，为了实现更小的弯折半径及减小弯折后膜层应力，会使用图案化的柔性支撑板，即在柔性支撑板的弯折中间位置设计一些图案并形成通孔3，以增加柔性支撑板的延展性和可塑性，且减小应力变化。但因柔性支撑板开孔区2的应力和实体区1的应力有差异，在折弯时开孔区2与实体区1连接的位置由于应力突变产生硬角折弯，即开孔区2容易折弯而实体区1不容易折弯，在连接位置会形成折弯角而不是弧形折弯，从而导致有开孔区2和实体区1之间的过渡位置发生膜层分离和裂纹；而且不利于 应用于较小折弯半径的柔性显示装置。
本示例实施方式首先提供了一种柔性支撑板，参照图3-图17所示的本公开柔性支撑板一示例实施方式的结构示意图；该柔性支撑板可以包括：开孔区2以及设于所述开孔区2的至少一侧的至少一个实体区1；所述开孔区2包括中部区域21和过渡区域22，在中部区域21和过渡区域22均设置有多个通孔3，所述过渡区域22设于所述中部区域21和所述实体区1之间，所述过渡区域22的宽度随着与所述中部区域21的距离的增加而减小。
本公开的柔性支撑板，过渡区域22的宽度随着与中部区域21的距离的增加而减小，使得过渡区域22形成逐渐缩小的结构。参照图16所示，使得在折弯时过渡区域22的形变是渐变的，应力也是渐变的而不会出现突变，即应力较为均匀变化，避免弯折时由于应力突变产生硬角折弯，从而避免膜层分离和裂纹问题；而且，可以应用于较小折弯半径的柔性显示装置。
下面对柔性支撑板的结构进行详细说明。
参照图3-图12所示，在本示例实施方式中，柔性支撑板可以设置为长方形，柔性支撑板可以包括位于长度方向的中间位置的开孔区2，以及连接于开孔区2两侧的两个实体区1。在开孔区2设置有多个通孔3，在实体区1没有设置通孔3。当然，在本公开的其他示例实施方式中，柔性支撑板可以设置为正方形、多边形等各种形状；实体区1也可以仅在开孔区2的一侧设置有一个，或在开孔区2的多侧设置有多个。
开孔区2可以包括中部区域21和过渡区域22，中部区域21设置为长方形，中部区域21的长度与柔性支撑板的宽度相同，即中部区域21贯穿柔性支撑板的宽度方向的两端。柔性支撑板的一侧设置有柔性显示面板，柔性显示面板的折弯区与柔性支撑板的中部区域21相对设置，柔性显示面板的连接区与柔性支撑板的过渡区域22相对设置。另外，中部区域21的形状也可以根据需要设置成其他形状，在此不再赘述。
参照图3-图9所示，过渡区域22可以包括多个第一子过渡区域221，各个第一子过渡区域221均连接于中部区域21和实体区1之间，即多个第一子过渡区域221沿柔性支撑板的宽度方向排列，且第一子过渡区域 221的宽度随着与中部区域21的距离的增加而减小。
在所有的示例实施方式中，第一子过渡区域221的宽度指的是在柔性支撑板的宽度方向上的尺寸；换句话说，第一子过渡区域221的宽度与中部区域21、过渡区域22和实体区1的连接方向垂直。
参照图3和图4所示，第一子过渡区域221可以设置为等腰三角形，且等腰三角形的底边与中部区域21的边沿线共线，使得第一子过渡区域221的宽度随着与中部区域21的距离的增加而减小，且第一子过渡区域221与实体区1连接的分界线形成为折线。当然，在本公开的其他示例实施方式中，第一子过渡区域221也可以设置为等腰梯形，且等腰梯形的长底边与中部区域21的边沿线共线，同样使得第一子过渡区域221的宽度随着与中部区域21的距离的增加而减小，且第一子过渡区域221与实体区1连接的分界线形成为折线。还有，第一子过渡区域221还可以设置为任意三角形或任意梯形，还可以是五边形或多边形，只要使五边形或多边形的一长边与中部区域21的边沿线共线，而五边形或多边形的靠近实体区1一侧的部分呈逐渐缩小状，同样能够达到第一子过渡区域221的宽度随着与中部区域21的距离的增加而减小的目的。
需要说明的是，第一子过渡区域221与实体区1连接的分界线是第一子过渡区域221内的至少一个通孔上最靠近实体区1的点连接形成的虚设线段或弧线，或者是与第一子过渡区域221内的至少一个通孔上最靠近实体区1的点距离设定间距的点连接形成的虚设线段或弧线。
第一子过渡区域221与第二子过渡区域221连接的分界线是第一子过渡区域221内的至少一个通孔上最靠近第二子过渡区域221的点连接形成的虚设线段或弧线，或者是与第一子过渡区域221内的至少一个通孔上最靠近第二子过渡区域221的点距离设定间距的点连接形成的虚设线段或弧线。
参照图5和图6所示，第一子过渡区域221可以设置为半椭圆形，且半椭圆形的直边与中部区域21的边沿线共线，使得第一子过渡区域221的宽度随着与中部区域21的距离的增加而减小，且第一子过渡区域221与实体区1连接的分界线形成为弧线。当然，在本公开的其他示例实施方式中，第一子过渡区域221可以设置为少半椭圆形，同样使得第 一子过渡区域221的宽度随着与中部区域21的距离的增加而减小，且第一子过渡区域221与实体区1连接的分界线形成为弧线。还有，第一子过渡区域221还可以设置为半圆形或少半圆形；第一子过渡区域221与实体区1连接的分界线还可以设置为抛物线弧，还可以是任意弧形或各种组合弧形；只要使第一子过渡区域221的宽度随着与中部区域21的距离的增加而减小即可。
参照图3和图5所示，通孔3可以为矩形通孔，在开孔区2内的矩形通孔3的宽度相同，但是长度根据设置的位置可以不同，例如，在中间区域矩形通孔的长度较长，在第一子过渡区域221矩形通孔的长度较短。
参照图4和图6所示，通孔3可以为圆形通孔，在开孔区2内的圆形通孔3的直径可以相同。
通孔3的形状不限于上述说明，例如，在本公开的其他示例实施方式中，通孔3还可以是腰圆形通孔、椭圆形通孔、正方形通孔等等各种通孔3均属于本申请的保护范围。
上述示例实施方式中，多个第一子过渡区域221的形状相同且面积相同。在另外一些示例实施方式中，多个第一子过渡区域221的形状相同但是面积不相同。参照图7所示，多个第一子过渡区域221的形状均是等腰三角形，但是等腰三角形的底边长度是相同的，但是高度是不同的，导致等腰三角形的面积不同。参照图8所示，多个第一子过渡区域221的形状相同均是半椭圆形，但是半椭圆形的轴长不同，导致半椭圆形的面积不同。
当然，多个第一子过渡区域221也可以是形状不相同且面积也不相同的结构。参照图9所示，多个第一子过渡区域221可以是等腰等三角形与半椭圆形间隔排布的结构，即一个等腰等三角形一个半椭圆形，相邻两个等腰等三角形之间设置有一个半椭圆形；而且排布方式也可以多种多样，可以是两两相同的间隔排布，例如，两个等腰等三角形两个半椭圆形，相邻两个等腰等三角形之间设置有两个半椭圆形；还可以是没有规律的排布，在此不再赘述。
另外，多个第一子过渡区域221也可以是形状不相同且面积相同的 结构。多个第一子过渡区域221的具体排布方式可以与图9所示相同，但是可以通过计算使等腰等三角形的面积与半圆形的面积相同，同样可以达到避免膜层分离和裂纹的目的。
在本公开的另外一些示例实施方式中，参照图10-图12所示，过渡区域22还可以包括多个第二子过渡区域222，各个第二子过渡区域222均连接于第一子过渡区域221与实体区1之间，即多个第二子过渡区域222沿柔性支撑板的宽度方向排列，且第二子过渡区域222的靠近实体区1的一端部的宽度随着与中部区域21的距离的增加而减小。
在所有的示例实施方式中，第二子过渡区域221的宽度指的是在柔性支撑板的宽度方向上的尺寸；换句话说，第二子过渡区域221的宽度与中部区域21、过渡区域22和实体区1的连接方向垂直。
参照图10所示，第二子过渡区域222与实体区1连接的分界线可以设置为半椭圆弧，使得第二子过渡区域222的靠近实体区1的一端部的宽度随着与中部区域21的距离的增加而减小。当然，在本公开的其他示例实施方式中，第二子过渡区域222与实体区1连接的分界线还可以设置为少半椭圆弧、半圆弧、少半圆弧、抛物线弧等多种弧线，还可以是任意弧形或各种组合弧形；只要使第二子过渡区域222的靠近实体区1的一端部的宽度随着与中部区域21的距离的增加而减小即可。
需要说明的是，第二子过渡区域222与实体区1连接的分界线是第二子过渡区域222内的至少一个通孔上最靠近实体区1的点连接形成的虚设线段或弧线，或者是与第二子过渡区域222内的至少一个通孔上最靠近实体区1的点距离设定间距的点连接形成的虚设线段或弧线。
参照图11所示，第二子过渡区域222与实体区1连接的分界线还可以设置为折线，使第二子过渡区域222的靠近实体区1的一端形成三角形，同样可以使得第二子过渡区域222的靠近实体区1的一端部的宽度随着与中部区域21的距离的增加而减小。当然，在本公开的其他示例实施方式中，第二子过渡区域222的靠近实体区1的一端还可以形成梯形、五边形或多边形等等，只要使梯形、五边形或多边形的靠近实体区1一侧的部分呈逐渐缩小状就能够使第二子过渡区域222的靠近实体区1的一端部的宽度随着与中部区域21的距离的增加而减小。
请继续参照图10和图11所示，第二子过渡区域222和实体区1连接的分界线的形状与第二子过渡区域222和第一子过渡区域221连接的分界线形状可以相同，例如，第二子过渡区域222与实体区1连接的分界线可以设置为半椭圆弧，第二子过渡区域222与第一子过渡区域221连接的边沿形状也设置为半椭圆弧；或第二子过渡区域222与实体区1连接的边沿可以设置为折线，第二子过渡区域222与第一子过渡区域221连接的边沿形状也设置为折线。当然，在第二子过渡区域222与第一子过渡区域221连接的边沿设置为半圆弧、少半椭圆弧、抛物线弧等的情况下，第二子过渡区域222与实体区1连接的边沿对应设置为半圆弧、少半椭圆弧、抛物线弧等。
通孔3的密度可以随着与中部区域21的距离的增加而减小。通孔3的密度可以是在第一子过渡区域221内的所有通孔的密度是相同的，或在第二子过渡区域222内的所有通孔的密度是相同的，但是第一子过渡区域221内的通孔的密度、第二子过渡区域222内的通孔的密度以及中部区域21内的通孔的密度是不同的，在图10和图11所示的示例实施方式中，中部区域21的通孔3的密度与多个第一子过渡区域221的通孔3的密度相同，第二子过渡区域222的通孔3的密度小于第一子过渡区域221的通孔3的密度。当然，也可以是中部区域21的通孔3的密度大于第一子过渡区域221的通孔3的密度，第二子过渡区域222的通孔3的密度小于第一子过渡区域221的通孔3的密度；在后续设置有第三子过渡区域22的情况下，第三子过渡区域22的通孔3的密度可以小于第二子过渡区域222的通孔3的密度。通孔3的密度还可以是在第一子过渡区域221内或第二子过渡区域222内就是逐渐变化的，例如，参照图13所示，在第一子过渡区域221内的通孔3的密度随着与中部区域21的距离的增加而减小。
通孔3的截面积可以随着与中部区域21的距离的增加而减小。通孔3的截面积可以是在第一子过渡区域221内或第二子过渡区域222内就是逐渐变化的，例如，参照图14所示，通孔3为长条形通孔，第一子过渡区域221内的通孔3的截面积随着与中部区域21的距离的增加而减小，图中所示是长度减小，当然，也可以是宽度减小。通孔3的截面积还可 以是在第一子过渡区域221内的所有通孔的截面积是相同的，或在第二子过渡区域222内的所有通孔的截面积是相同的，但是第一子过渡区域221内的通孔的截面积、第二子过渡区域222内的通孔的截面积以及中部区域21内的通孔的截面积是不同的，参照图15所示，通孔3为圆形通孔，中部区域21的通孔3的直径与多个第一子过渡区域221的通孔3的直径相同，第二子过渡区域222的通孔3的直径小于第一子过渡区域221的通孔3的直径。当然，也可以是中部区域21的通孔3的直径大于多个第一子过渡区域221的通孔3的直径；第二子过渡区域222的通孔3的直径小于第一子过渡区域221的通孔3的直径。在后续设置有第三子过渡区域的情况下，第三子过渡区域的通孔3的直径可以小于第二子过渡区域222的通孔3的直径。
另外，第二子过渡区域222与实体区1连接的分界线形状与第二子过渡区域222与第一子过渡区域221连接的分界线形状可以不相同，例如，参照图15所示，第二子过渡区域222与实体区1连接的分界线可以设置为折线，而第二子过渡区域222与第一子过渡区域221连接的分界线形状也设置为半圆弧；或，第二子过渡区域222与实体区1连接的分界线可以设置为半椭圆弧，而第二子过渡区域222与第一子过渡区域221连接的分界线形状也设置为折线。
上述示例实施方式说明了：在多个第一子过渡区域221的形状相同和面积的相同情况下，多个第二子过渡区域222可以形状相同且面积相同。还可以是，参照图16所示，在多个第一子过渡区域221的形状相同和面积的相同情况下，多个第二子过渡区域222的形状相同且面积不同；当然，多个第二子过渡区域222可以形状不相同且面积不相同。在多个第一子过渡区域221的形状不相同和面积的不相同情况下，多个第二子过渡区域222可以形状不相同但面积相同；也可以是，多个第二子过渡区域222可以形状不相同且面积不相同。
当然，在本公开的再一些示例实施方式中，过渡区域22还可以包括多个第三子过渡区域，各个第三子过渡区域均连接于第二子过渡区域222与实体区1之间，且第三子过渡区域的靠近实体区1的一端部的宽度随着与中部区域21的距离的增加而减小。第三子过渡区域22与实体 区1连接的分界线可以设置为弧线或折线，弧线或折线的具体结构如上面所述，因此，在此不再赘述。
进一步的，本示例实施方式首先提供了一种柔性显示装置，该柔性显示装置可以包括上述任意一项所述的柔性支撑板。柔性支撑板的具体结构上述已经进行了详细说明，因此，此处不再赘述。
在本示例实施方式中，柔性显示装置还可以包括柔性显示面板，柔性显示面板设于柔性支撑板的一侧，柔性显示面板包括折弯区和平面区，以及连接于折弯区和平面区之间的连接区，柔性显示面板的折弯区与柔性支撑板的中部区域21相对设置，所谓相对设置可以是折弯区与中部区域21正相对，即折弯区在柔性支撑板上的正投影与中部区域21重合，也可以是折弯区在柔性支撑板上的正投影稍大于或小于中部区域21；且柔性显示面板的连接区与柔性支撑板的过渡区域22相对设置，所谓相对设置可以是连接区与过渡区域22正相对，即连接区在柔性支撑板的正投影与过渡区域22重合，也可以是连接区在柔性支撑板的正投影稍大于或小于过渡区域22。
在该柔性显示装置折弯时，柔性支撑板的过渡区域22的形变是渐变的，应力也是渐变的而不会出现突变，即应力较为均匀变化，避免弯折时由于柔性支撑板的应力突变产生硬角折弯，从而避免柔性显示面板的膜层分离和裂纹问题；而且，可以应用于较小折弯半径的柔性显示装置。
上述所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施方式中，如有可能，各实施例中所讨论的特征是可互换的。在上面的描述中，提供许多具体细节从而给出对本公开的实施方式的充分理解。然而，本领域技术人员将意识到，可以实践本公开的技术方案而没有所述特定细节中的一个或更多，或者可以采用其它的方法、组件、材料等。在其它情况下，不详细示出或描述公知结构、材料或者操作以避免模糊本公开的各方面。
虽然本说明书中使用相对性的用语，例如“上”“下”来描述图标的一个组件对于另一组件的相对关系，但是这些术语用于本说明书中仅出于方便，例如根据附图中所述的示例的方向。能理解的是，如果将图 标的装置翻转使其上下颠倒，则所叙述在“上”的组件将会成为在“下”的组件。当某结构在其它结构“上”时，有可能是指某结构一体形成于其它结构上，或指某结构“直接”设置在其它结构上，或指某结构通过另一结构“间接”设置在其它结构上。
本说明书中，用语“一个”、“一”、“该”、“所述”和“至少一个”用以表示存在一个或多个要素/组成部分/等；用语“包含”、“包括”和“具有”用以表示开放式的包括在内的意思并且是指除了列出的要素/组成部分/等之外还可存在另外的要素/组成部分/等；用语“第一”、“第二”和“第三”等仅作为标记使用，不是对其对象的数量限制。
应可理解的是，本公开不将其应用限制到本说明书提出的部件的详细结构和布置方式。本公开能够具有其他实施方式，并且能够以多种方式实现并且执行。前述变形形式和修改形式落在本公开的范围内。应可理解的是，本说明书公开和限定的本公开延伸到文中和/或附图中提到或明显的两个或两个以上单独特征的所有可替代组合。所有这些不同的组合构成本公开的多个可替代方面。本说明书所述的实施方式说明了已知用于实现本公开的最佳方式，并且将使本领域技术人员能够利用本公开。

Claims (13)

  1. 一种柔性支撑板，其中，包括：开孔区以及设于所述开孔区的至少一侧的至少一个实体区；所述开孔区包括中部区域和过渡区域，在所述中部区域和所述过渡区域均设置有多个通孔，所述过渡区域设于所述中部区域和所述实体区之间，所述过渡区域的宽度随着与所述中部区域的距离的增加而减小。
  2. 根据权利要求1所述的柔性支撑板，其中，所述过渡区域包括：
    多个第一子过渡区域，各个所述第一子过渡区域均设于所述中部区域和所述实体区之间，且所述第一子过渡区域的宽度随着与所述中部区域的距离的增加而减小。
  3. 根据权利要求2所述的柔性支撑板，其中，所述第一子过渡区域与所述实体区连接的分界线设置为弧线或折线。
  4. 根据权利要求2所述的柔性支撑板，其中，多个所述第一子过渡区域的形状相同且面积相同，或多个所述第一子过渡区域的形状相同且面积不同，或多个所述第一子过渡区域的形状不同且面积不同。
  5. 根据权利要求2所述的柔性支撑板，其中，所述过渡区域还包括：
    多个第二子过渡区域，各个所述第二子过渡区域均连接于所述第一子过渡区域与所述实体区之间，且所述第二子过渡区域的靠近所述实体区的一端部的宽度随着与所述中部区域的距离的增加而减小。
  6. 根据权利要求5所述的柔性支撑板，其中，所述第二子过渡区域与所述实体区连接的分界线设置为弧线或折线。
  7. 根据权利要求5所述的柔性支撑板，其中，多个所述第二子过渡区域的形状相同且面积相同，或多个所述第二子过渡区域的形状相同且面积不同，或多个所述第二子过渡区域的形状不同且面积不同。
  8. 根据权利要求1所述的柔性支撑板，其中，所述通孔的密度随着与所述中部区域的距离的增加而减小。
  9. 根据权利要求5所述的柔性支撑板，其中，所述中部区域的所述通孔的密度等于或大于多个所述第一子过渡区域的所述通孔的密度， 所述第二子过渡区域的所述通孔的密度小于所述第一子过渡区域的所述通孔的密度。
  10. 根据权利要求1所述的柔性支撑板，其中，所述通孔的截面积随着与所述中部区域的距离的增加而减小。
  11. 根据权利要求5所述的柔性支撑板，其中，所述中部区域的所述通孔的截面积等于或大于多个所述第一子过渡区域的所述通孔的截面积，所述第二子过渡区域的所述通孔的截面积小于所述第一子过渡区域的所述通孔的截面积。
  12. 一种柔性显示装置，其中，包括权利要求1～11任意一项所述的柔性支撑板。
  13. 根据权利要求12所述的柔性显示装置，其中，所述柔性显示装置还包括：
    柔性显示面板，设于所述柔性支撑板的一侧，所述柔性显示面板包括折弯区和平面区，以及连接于所述折弯区和所述平面区之间的连接区，所述折弯区与所述柔性支撑板的中部区域相对设置，所述连接区与所述柔性支撑板的过渡区域相对设置。
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