WO2023077566A1 - 折叠显示装置 - Google Patents
折叠显示装置 Download PDFInfo
- Publication number
- WO2023077566A1 WO2023077566A1 PCT/CN2021/132356 CN2021132356W WO2023077566A1 WO 2023077566 A1 WO2023077566 A1 WO 2023077566A1 CN 2021132356 W CN2021132356 W CN 2021132356W WO 2023077566 A1 WO2023077566 A1 WO 2023077566A1
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- WIPO (PCT)
- Prior art keywords
- plate
- display area
- curved
- support
- support plate
- Prior art date
Links
- 238000005452 bending Methods 0.000 claims abstract description 124
- 230000001681 protective effect Effects 0.000 claims abstract description 54
- 239000012780 transparent material Substances 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000006748 scratching Methods 0.000 abstract description 2
- 230000002393 scratching effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 16
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
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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
- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
- G06F1/1681—Details related solely to hinges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
Definitions
- the present application relates to the field of display technology, in particular to a foldable display device.
- the existing folding display devices usually adopt the design method of main and secondary dual screens, that is, two independent screens are used, and one large screen is used as the main screen for the unfolded state of the mobile phone.
- Display a small screen is used as a secondary screen for display in the folded state.
- the secondary screen usually adopts a straight screen. There is a certain installation space between the straight screen and the edge of the middle frame. It is necessary to design a corresponding front frame to fix it, and to install a protective glass with an ink frame for decoration. This design will undoubtedly sacrifice the secondary screen.
- the secondary screen of the folding display device will appear narrow and long when it is in the folded state, which is not conducive to achieving a high screen-to-body ratio of the whole machine and affects the overall appearance.
- An embodiment of the present application provides a foldable display device to solve the technical problem that when the existing foldable display device adopts a main and secondary dual-screen design, it is not conducive to achieving a high screen-to-body ratio of the whole machine.
- the present application provides a folding display device, including:
- the second support plate includes a planar support part, a curved support part and a protection plate, the curved support part is located at an end of the planar support part away from the first support plate and is connected to the planar support part, the The protective plate is located at the end of the curved support part away from the first support plate, there is a gap between the protective plate and the curved support part and is connected to each other, and the protective plate is on the curved support part
- the orthographic projection of is covering the bending axis of the curved surface support part, and the protective plate is made of a transparent material;
- a flexible display panel is laid on one side of the first support plate, the second support plate and the bending member, and one end of the flexible display panel bypasses the curved support portion and extends to the second On the other side of the support plate, the flexible display panel is passed through the gap.
- the cross-sectional shape of the curved support portion is an arc
- the cross-sectional area of the protective plate is the cross-sectional area of the curved support portion 1/5 ⁇ 1/6 of the area of the circle where it is located.
- the second support plate further includes a first extension portion and a second extension portion for connecting the curved surface support portion and the protection plate, the first extension portion and the The second extension part is formed by extending the planar support part away from the first support plate; wherein, one end of the protection plate is connected to the first extension part, and the other end of the protection plate is connected to the Second extension.
- the first extension part, the second extension part and the protection plate are integrally formed with the planar support part.
- the foldable display device further includes a front frame, the front frame is arranged on the side of the flexible display panel away from the first support plate and the second support plate and covers the At least a partial area of the side of the flexible display panel, the front frame includes a first front frame and a second front frame, the first front frame is connected to the first support plate, the second front frame is connected to the first Two support plates are connected, the second front frame includes a front end and a side end, the front end is connected to the second support plate, and the side end is connected to the first extension and the second extension The parts are connected, and the side ends are curved surfaces.
- the flexible display panel includes:
- the first display area is laid on one side of the first support plate
- the second display area is laid on one side of the planar support part
- the first bending display area is laid on one side of the bending member
- the third display area is laid on the side of the second support plate away from the second display area.
- the second bending display area is laid on the curved support part and fixedly connected with the curved support part.
- the protective plate includes a first overlapping end surface and a second overlapping end surface oppositely arranged, and the first overlapping end surface is located on a side of the protective plate close to the second display area. side, the second overlapping end surface is located on the side of the protective plate close to the third display area;
- the folding display device further includes a first cover plate and a second cover plate, the first cover plate covers the first display area, the second display area and part of the second bending display area, the The second cover plate covers the third display area and part of the second bending display area, the first cover plate overlaps with the first overlapping end surface, the second cover plate and the second Lap end face lap.
- the present application provides a folding display device, including:
- the second support plate includes a planar support part, a curved support part and a protection plate, the curved support part is located at an end of the planar support part away from the first support plate and is connected to the planar support part, the The protection plate is located at the end of the curved surface support part away from the first support plate, and there is a gap between the protection plate and the curved surface support part and is connected to each other;
- a flexible display panel is laid on one side of the first support plate, the second support plate and the bending member, and one end of the flexible display panel bypasses the curved support portion and extends to the second On the other side of the support plate, the flexible display panel is passed through the gap.
- the orthographic projection of the protective plate on the curved support part covers the bending axis of the curved support part.
- the cross-sectional shape of the curved support portion is an arc
- the cross-sectional area of the protective plate is the cross-sectional area of the curved support portion 1/5 ⁇ 1/6 of the area of the circle where it is located.
- the second support plate further includes a first extension portion and a second extension portion for connecting the curved surface support portion and the protection plate, the first extension portion and the The second extension part is formed by extending the planar support part away from the first support plate; wherein, one end of the protection plate is connected to the first extension part, and the other end of the protection plate is connected to the Second extension.
- the first extension part, the second extension part and the protection plate are integrally formed with the planar support part.
- the foldable display device further includes a front frame, the front frame is arranged on the side of the flexible display panel away from the first support plate and the second support plate and covers the At least a partial area of the side of the flexible display panel, the front frame includes a first front frame and a second front frame, the first front frame is connected to the first support plate, the second front frame is connected to the first Two support plates are connected, the second front frame includes a front end and a side end, the front end is connected to the second support plate, and the side end is connected to the first extension and the second extension The parts are connected, and the side ends are curved surfaces.
- the protective plate is made of a transparent material.
- the flexible display panel includes:
- the first display area is laid on one side of the first support plate
- the second display area is laid on one side of the planar support part
- the first bending display area is laid on one side of the bending member
- the third display area is laid on the side of the second support plate away from the second display area.
- the second bending display area is laid on the curved support part and fixedly connected with the curved support part.
- the protective plate includes a first overlapping end surface and a second overlapping end surface oppositely arranged, and the first overlapping end surface is located on a side of the protective plate close to the second display area. side, the second overlapping end surface is located on the side of the protective plate close to the third display area;
- the folding display device further includes a first cover plate and a second cover plate, the first cover plate covers the first display area, the second display area and part of the second bending display area, the The second cover plate covers the third display area and part of the second bending display area, the first cover plate overlaps with the first overlapping end surface, the second cover plate and the second Lap end face lap.
- the first cover includes a first planar cover and a first curved cover that are connected to each other, and the first planar cover covers the first display area and the second display area.
- the first curved cover covers part of the second bent display area;
- the second cover includes a second planar cover and a second curved cover connected to each other, and the second planar cover Covering the third display area, the second curved cover plate covers the second curved display area;
- first curved cover plate is overlapped with the first overlapping end surface
- second curved cover plate is overlapped with the second overlapping end surface
- the first display area, the second display area and the first bending display area form a wedge shape, and the first display area
- the second display area, the third display area and the second bending display area form a U-shape.
- the bending member includes a hinge mechanism, two side panels and a bottom panel, and the two side panels and the bottom panel are respectively connected to the hinge mechanism; the two side panels are respectively Located on both sides of the hinge mechanism, the bottom plate is located on a side of the hinge mechanism away from the flexible display panel.
- the second support plate includes a first side frame, a second side frame, a third side frame and a fourth side frame connected end to end, and the first side frame and the first side frame
- the three side frames are arranged opposite to each other, the second side frame and the fourth side frame are arranged opposite to each other; the first side frame forms the curved surface support part, and the second side frame, the third side frame and the fourth side frame form the curved surface support part.
- the fourth side frame surrounds the planar support part.
- the folding display device includes a first support plate, a second support plate, a bending member and a flexible display panel, and the first support plate and the second support plate are rotatably connected through the bending member , so that the flexible display panel can be dynamically bent in the form of internal folding through the bending member;
- the second support plate includes a plane support part, a curved support part and a protective plate, and one end of the flexible display panel bypasses the curved support part and extends to the second
- the other side of the two supporting boards enables the flexible display panel to be statically bent in the form of outward folding, which can realize curved surface edge display; at the same time, the flexible display panel is inserted in the gap between the protective plate and the curved surface support part, so as to It plays a role in protecting the flexible display panel laid on the curved surface support part, and avoids the risk of scratching and abrasion caused by the flexible display panel being directly exposed on the outside.
- FIG. 1 is a schematic diagram of an exploded structure of a foldable display device provided in an embodiment of the present application
- Fig. 2 is a schematic structural diagram of a second support plate provided by an embodiment of the present application.
- Fig. 3 is a partial structural schematic view of the second support plate in Fig. 2;
- Fig. 4A is a schematic structural view of a flexible display panel provided in an embodiment of the present application when it is in an unfolded state;
- Fig. 4B is a schematic structural view of a flexible display panel provided in an embodiment of the present application when it is in a folded state;
- FIG. 5A is a schematic top view of a folding display device provided in an embodiment of the present application when it is in an unfolded state;
- Fig. 5B is a schematic bottom view of a foldable display device provided in an embodiment of the present application when it is in an unfolded state;
- FIG. 5C is a schematic structural view of a foldable display device provided in an embodiment of the present application when it is in a folded state;
- Fig. 6 is a schematic cross-sectional structure diagram along A-A of the foldable display device in Fig. 5C;
- Fig. 7 is a schematic diagram of the installation of a second cover plate provided by the embodiment of the present application.
- Fig. 8 is a schematic structural diagram of a bending mechanism provided by an embodiment of the present application.
- First front frame 72.
- Second front frame 721. Front end; 722. Side end.
- Figure 1 is a schematic diagram of the exploded structure of a foldable display device provided by an embodiment of the present application
- Figure 2 is a schematic structural diagram of a second support plate provided by an embodiment of the present application
- Figure 3 is a diagram Partial structural diagram of the second support plate in 2
- the present application provides a foldable display device, which includes a flexible display panel 1 , a first support plate 2 , a second support plate 3 and a bending member 4 .
- the second support plate 3 includes a planar support portion 31, a curved support portion 32 and a protection plate 33, the curved support portion 32 is located at an end of the planar support portion 31 away from the first support plate 2 and is in contact with The planar support portion 31 is connected to each other, the protective plate 33 is located at the end of the curved support portion 32 away from the first support plate 2 , and a gap is left between the protective plate 33 and the curved support portion 32 Gap and connected settings.
- the bending member 4 is located between the first support plate 2 and the second support plate 3 and connects the first support plate 2 and the second support plate 3, the first support plate 2 and the second support plate
- the support plate 3 is rotatably connected through the bending member 4, so as to realize dynamic bending in the form of inner folding.
- the flexible display panel 1 is laid on one side of the first support plate 2 , the second support plate 3 and the bending member 4 , and one end of the flexible display panel 1 bypasses the curved support portion 32 And extend to the other side of the second support plate 3, the flexible display panel 1 is passed through the gap, on the one hand, the curved surface support part 32 enables the flexible display panel 1 to adopt the outward folding Static bending; on the other hand, the protection plate 33 can protect the flexible display panel 1 laid on the curved surface support part 32, avoiding the flexible display panel 1 directly exposed outside and increasing the scratches. Risk of rubbing and abrasion.
- Figure 4A is a schematic structural diagram of a flexible display panel provided by an embodiment of the application when it is in an unfolded state
- Figure 4B is a structure of a flexible display panel provided by an embodiment of this application when it is in a folded state schematic diagram.
- the flexible display panel 1 includes a first display area 11, a second display area 12, a third display area 13, a first bending display area 14 and a second bending display area 15; the first display area 11 is laid on On the side of the first support plate 2, the second display area 12 is laid on the side of the plane support part 31, the first bending display area 14 is laid on the side of the bending member 4, and the The third display area 13 is laid on the side of the second support plate 3 away from the second display area 12, and the second curved display area 15 is laid on the curved support portion 32 and supported by the curved surface. Part 32 is fixedly connected.
- the third display area 13 is statically bent in an outward folding manner through the second bending display area 15, and the first display area 11 , the second display area 12 and the first bending display area 14 are located on the same plane. Since the second bending display area 15 in this application is a curved surface and can be displayed, the first display area 11, the second display area 12, the first bending display area 14 and some of the The second bending display area 15 can be used as the main screen of the folding display device for image display.
- the first bending display area 14 is in the bending state, and the first display area 11 and the second display area 12 pass through the first display area 14.
- the bending display area 14 is dynamically bent in the form of inner folding, so that the display surface of the first display area 11 and the display surface of the second display area 12 face each other, and the first display area 11, the The second display area 12 and the first bending display area 14 are not displayed.
- the third display area 13 and part of the second bending display area 15 can be used as secondary screens of the folding display device. The screen is displayed.
- the secondary screen in this application can realize curved edge display, which can make the secondary screen have a more coordinated aspect ratio and a wider display range, which is beneficial to Increase the overall screen-to-body ratio of the secondary screen.
- the entire foldable display device only uses one flexible display panel 1, and the flexible display panel 1 is divided into two parts as the main screen and the sub-screen respectively, which can simultaneously satisfy the effect of the main and sub-screens of the folding display device being displayed separately, so as to achieve the purpose of dual-use and shared use of one screen.
- the first display area 11, the second display area 12 and the first bending display area 14 form a wedge shape, and the second display area 12.
- the third display area 13 and the second bending display area 15 form a U-shape, so that the overall structure of the folding display device is more compact, and the overall thickness is lighter and thinner.
- Figure 5A is a schematic top view of a foldable display device provided in an embodiment of the application when it is in an unfolded state
- Figure 5B is a schematic view of a foldable display device provided in an embodiment of this application in an unfolded The bottom-view structural diagram in the state
- FIG. 5C is a structural schematic diagram of a foldable display device provided in an embodiment of the present application when it is in a folded state.
- the first support plate 2 is set corresponding to the first display area 11 for supporting the first display area 11;
- the second support plate 3 corresponds to the second display area 12, the first display area 11
- the second bending display area 15 and the third display area 13 are set to support the second display area 12, the third display area 13 and the second bending display area 15;
- the bending member 4 is disposed corresponding to the first bending display area 14, and when the folding display device is in an unfolded state, the bending member 4 is used to support the first bending display area 14.
- the first display area 11 is attached to the inner side of the first support plate 2
- the second display area 12 is attached to the inner side of the second support plate 3
- the inner side is attached
- the first bending display area 14 is attached to the inner side of the bending member 4
- the third display area 13 is assembled with the second support plate 3 as a whole.
- the first display area 11, the second display area 12 and the first bending display area can be stored in the first support plate 2,
- the storage space formed inside the second support plate 3 and the bending member 4 enables the main screen to be better stored and protected.
- this application only uses one flexible display panel 1 to realize the main and auxiliary screens.
- the effect of independent display of the screen, the sub-screen body and the edge of the second support plate 3 do not need to reserve the installation space of the front frame, which can save the thickness and dimension space of the second support plate 3, and is conducive to the thinning of the whole machine.
- the design makes the folding display device have better foldable performance and is convenient for storage and carrying.
- the flexible display panel 1 is flexible and bendable at least in a region corresponding to the bending member 4 and the side of the second support plate 3 away from the first support plate 2 .
- the flexible display panel 1 may be an organic light emitting diode display panel, or other forms of flexible display panels.
- the second support plate 3 includes a first side frame 3a, a second side frame 3b, a third side frame 3c and a fourth side frame 3d connected end to end, the first side
- the area surrounded by the frame 3 a , the second side frame 3 b , the third side frame 3 c and the fourth side frame 3 d is used to support the second display area 12 and the third display area 13 .
- the first side frame 3a is set opposite to the third side frame 3c
- the second side frame 3b is set opposite to the fourth side frame 3d; the first side frame 3a forms the curved support portion 32 , the second side frame 3b, the third side frame 3c and the fourth side frame 3d enclose the planar support portion 31 .
- the second support plate 3 also includes a first extension 36 and a second extension 37 for connecting the curved surface support 32 and the protection plate 33 , the first extension 36 and the second extension part 37 is formed by extending from the planar support part in a direction away from the first support plate 2, specifically, the first extension part 36 is formed by extending from the second side frame 3b away from the first support plate 2
- the second extension part 37 is formed by extending the fourth side frame 3d in a direction away from the first support plate 2; the first extension part 36 and the second extension part 37 can be a curved surface.
- the protective plate 33 is located on the side of the first side frame 3a away from the third side frame 3c, one end of the protective plate 33 is connected to the first extension 36, and the other end of the protective plate 33 is connected to There is a gap between the second extension part 37, the protective plate 33 and the first side frame 3a, the flexible display panel 1 is passed through the gap, and the protective plate 33 can protect
- the function of the second curved display area 15 is to prevent the screen body of the second curved display area 15 from being directly exposed on the outside, thereby increasing the risk of scratches and abrasions.
- the assembly process of the flexible display panel 1 with the first support plate 2, the second support plate 3 and the bending member 4 is as follows: first, the first of the flexible display panel 1 The display area 11, the second display area 12, and the first bending display area 14 are attached to the first support plate 2, the second support plate 3, and the bending member 4 respectively; then The flexible display panel 1 is folded backwards, and the flexible display panel 1 directly passes through the gap, so that the second bending display area 15 is attached to the first side frame 3a; finally, the first side frame 3a is The third display area 13 is bonded to the side of the second support plate 3 away from the second display area 12 .
- FIG. 1 to FIG. 3 , FIG. 5C and FIG. 6 , and FIG. 6 is a schematic cross-sectional structure diagram of the folding display device in FIG. 5C along A-A.
- the curved surface support portion 32 includes a bending axis 321, which is an outer edge line parallel to the extension direction of the first side frame 3a, and the bending axis 321 is at the edge of the first side frame 3a.
- the projection on 3a coincides with the outer edge line 311. Since the bending axis 321 has the greatest probability of being scratched and worn, the orthographic projection of the protective plate 33 on the curved support portion 32 covers all
- the bending axis 321 of the curved support portion 32 is beneficial to reduce the probability of the second bending display area 15 being scratched and worn.
- the cross-sectional shape of the curved support portion 32 is a circular arc, and the cross-sectional area of the protective plate 33 is 1/5 ⁇ 1/6 of the area of the circle where the cross-section is located; the purpose of this setting is: on the one hand, avoid the area of the second bending display area 15 that is blocked by the protective plate 33 due to the excessive volume of the protective plate 33 Larger, resulting in a reduction in the display area of the second bending display area 15, reducing the overall screen ratio of the flexible display panel 1; The area of the second bending display area 15 that is susceptible to scratches and wear is not completely covered by the protective plate 33 , which increases the probability of the second bending display area 15 being damaged.
- the protection plate 33 can be used as a boundary line between the main screen and the secondary screen of the folding display device, and the protection plate 33 divides the second bending display area 15 into two.
- the second bending display area 15 includes a main bending display area 151 and an auxiliary bending display area 152
- the main bending display area 151 is the second bending display area 15 close to the second
- the area of the display area 12 can be used as a part of the display area of the main screen.
- the auxiliary bending display area is the area of the second bending display area 15 close to the third display area 13, which can be used as a part of the display area of the secondary screen, thereby avoiding the problem of the junction between the inner and outer edges of the folding display device.
- There is a structural step difference in the position which is conducive to improving the overall visual quality of the secondary screen.
- the foldable display device further includes a screen display drive system (not shown in the figure), which is used to realize the effect of free switching between two display states of the flexible display panel.
- the screen display drive system includes a first drive module and a second drive module.
- the first drive module drives the first display area 11, the second The second display area 12, the first bending display area 14 and the main bending display area 151 are used to realize the main screen display;
- the second driving module drives the first bending display area
- the third display area 13 and the auxiliary bending display area 152 are used to realize the secondary screen display.
- the screen display drive system can be a drive chip, and the first drive module that controls the display on the main screen and the second drive module that controls the display on the secondary screen are integrated into the same drive chip, that is to say, the The folding display device can control the two display states of the flexible display panel by setting only one driver chip.
- the main screen and the secondary screen adopt an integrated screen body, which reduces the folding time.
- the design of the drive system and operating system of the display device is difficult; on the other hand, there is no need to separately set up electronic devices such as drive chips and circuit boards that occupy a certain thickness of the whole machine for the secondary screen, which reduces the thickness of the foldable display device, which is conducive to Realize the slimming of the whole machine.
- the protective plate 33 can be made of a transparent material, such as transparent glass, so that the area of the second bending display area 15 that is blocked by the protective plate 33 can also be displayed, which is conducive to improving the flexibility of the display.
- the protective plate 33 includes a first overlapping end surface 331 and a second overlapping end surface 332 which are oppositely arranged, and the first overlapping end surface 331 is located on a side of the protective plate 33 close to the second display area 12 .
- the second overlapping end surface 332 is located on the side of the protective plate 33 close to the third display area 13, and is used for overlapping the folding display device The second cover 6.
- FIG. 7 is a schematic diagram of the installation of a second cover plate provided by the embodiment of the present application.
- the first cover plate 5 covers the first display area 11, the second display area 12 and part of the second bending display area 15 (the main bending display area 151 is not covered by the protective plate 33 covered area), used to protect the main screen of the flexible display panel 1;
- the second cover 6 covers the third display area 13 and part of the second bending display area 15 (the auxiliary bending display
- the area 152 not covered by the protective plate 33 ) is used to protect the secondary screen of the flexible display panel 1 .
- the first cover plate 5 is overlapped with the first overlapping end surface 331, so that the first cover plate 5 is easier to be fixedly installed on the second support plate 3, and the second cover plate 6 and the The second overlapping end surface 332 is overlapped so that the second cover plate 6 is easier to be fixedly installed on the second support plate 3, which is conducive to lifting the first cover plate 5 and the second cover Mounting reliability of board 6.
- the overlapping can be realized by adhesive layer bonding. catch.
- double-sided adhesive tape is provided between the first cover plate 5 and the first overlapping end surface 331, between the second cover plate 6 and the second overlapping end surface 332, and the double-sided adhesive tape
- the surface glue can be optical glue.
- the overlap between the first cover plate 5 and the first overlapping end surface 331 and between the second cover plate 6 and the second overlapping end surface 332 can also be achieved through mechanical connection. , such as rivets, threaded connections.
- the first cover 5 includes a first planar cover 51 and a first curved cover 52 connected to each other, and the first planar cover 51 covers the first display area 11 and the second display area 12, the first curved cover 52 covers part of the second bending display area 15;
- the second cover 6 includes a second planar cover 61 and a second curved cover 62 connected to each other, the The second flat cover 61 covers the third display area 13, and the second curved cover 62 covers the second curved display area 15; wherein, the first curved cover 52 and the first overlapping The connecting end surface 331 is overlapped, and the second curved cover plate 62 is overlapped with the second overlapping end surface 332 .
- the foldable display device further includes a front frame 7, the front frame 7 is arranged on the side of the flexible display panel 1 away from the first support plate 2 and the second support plate 3 and covers At least a partial area of the side of the flexible display panel 1 .
- the front frame 7 can be a split front frame, specifically, the front frame 7 includes a first front frame 71 and a second front frame 72, and the first front frame 71 is set correspondingly to the first display area 11 , the second front frame 72 is set corresponding to the second display area 12 and the second bending display area 15 .
- the first front frame 71 is connected to the first support plate 2
- the second front frame 72 is connected to the second support plate 3 .
- the second front frame 72 includes a front end 721 and a side end 722 connected to each other, the front end 721 is set corresponding to the second display area 12, and the side end 722 is connected to the second bending display Area 15 is correspondingly set, the front end 721 is connected to the second support plate 3, specifically, the front end 721 is connected to the second side frame 3b, and the side end 722 is connected to the first extension
- the portion 36 is connected to the second extension portion 37, and similarly, the side end portion 722 is a curved surface.
- FIG 8 is a schematic structural diagram of a bending mechanism provided by an embodiment of the present application.
- the bending member 4 includes a hinge mechanism 41 , two side plates 42 and a bottom plate 43 , and the two side plates 42 and the bottom plate 43 are used to protect the hinge mechanism 41 .
- the two side plates 42 and the bottom plate 43 are respectively connected to the hinge mechanism 41; the two side plates 42 are respectively located on both sides of the hinge mechanism 41, and the bottom plate 43 is located at a distance from the hinge mechanism 41.
- One side of the flexible display panel 1 One side of the flexible display panel 1 .
- the bending member 4 may also adopt other types of bending mechanism, which is not limited in this embodiment of the present application.
- the foldable display device includes a first support plate, a second support plate, a bending member and a flexible display panel, the first support plate and the second support plate are rotatably connected through the bending member,
- the flexible display panel can be dynamically bent in the form of internal folding through the bending member;
- the second support plate includes a plane support part, a curved support part and a protective plate, and one end of the flexible display panel bypasses the curved support part and extends to the second the other side of the support plate, so that the flexible display panel can be statically bent in the form of outward folding, and the edge display of the curved surface can be realized; at the same time, the flexible display panel is inserted in the gap between the protective plate and the curved support part to play To protect the flexible display panel laid on the curved surface support, to avoid the flexible display panel directly exposed on the outside and increase the risk of scratches and wear.
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Abstract
一种折叠显示装置，包括第一支撑板(2)、第二支撑板(3)、弯折构件(4)和柔性显示面板(1)，第二支撑板(3)包括相连接的平面支撑部(31)、曲面支撑部(32)和保护板(33)，曲面支撑部(32)位于平面支撑部(31)远离第一支撑板(2)一端，柔性显示面板(1)一端绕过曲面支撑部(32)并延伸至第二支撑板(3)的另一侧且穿设于保护板(33)和曲面支撑部(32)之间的间隙中，避免出现刮擦和磨损。
Description
本申请涉及显示技术领域，尤其涉及一种折叠显示装置。
现有的折叠显示装置为了实现在展开和折叠状态分别能独立显示，通常会采取主副双屏的设计方式，即采用两块独立的屏体，其中，一块大屏作为主屏用于手机展开状态显示，一块小屏作为副屏用于折叠状态时显示。副屏通常采用直板屏，直板屏与中框边缘存在一定的安装空间，需要设计相应的前框进行固定，且需要设置一块带油墨边框的保护玻璃进行装饰，此种设计无疑会牺牲掉副屏的显示空间，导致折叠显示装置在折叠状态时副屏会显得比较狭长，不利于实现整机高屏占比，影响整体外观。
本申请实施例提供一种折叠显示装置，以解决现有的折叠显示装置采用主副双屏设计时，不利于实现整机高屏占比的技术问题。
为解决上述问题，本申请提供的技术方案如下：
本申请提供一种折叠显示装置，包括：
第一支撑板；
第二支撑板，包括平面支撑部、曲面支撑部和保护板，所述曲面支撑部位于所述平面支撑部远离所述第一支撑板的一端并与所述平面支撑部相连接设置，所述保护板位于所述曲面支撑部远离所述第一支撑板的一端设置，所述保护板和所述曲面支撑部之间留有间隙且相连接设置，所述保护板在所述曲面支撑部上的正投影覆盖所述曲面支撑部的弯折轴线，所述保护板采用透明材料；
弯折构件，所述第一支撑板和所述第二支撑板通过所述弯折构件进行转动连接；以及
柔性显示面板，铺设于所述第一支撑板、所述第二支撑板和所述弯折构件的一侧，所述柔性显示面板的一端绕过所述曲面支撑部并延伸至所述第二支撑板的另一侧，所述柔性显示面板穿设于所述间隙中。
根据本申请提供的折叠显示装置，在垂直于所述第一支撑板的平面方向上，所述曲面支撑部的截面形状为圆弧，所述保护板的截面面积为所述曲面支撑部的截面所在圆面积的1/5~1/6。
根据本申请提供的折叠显示装置，所述第二支撑板还包括用于连接所述曲面支撑部和所述保护板的第一延伸部和第二延伸部，所述第一延伸部和所述第二延伸部由所述平面支撑部向远离所述第一支撑板的方向延伸而成；其中，所述保护板的一端连接所述第一延伸部，所述保护板的另一端连接所述第二延伸部。
根据本申请提供的折叠显示装置，所述第一延伸部、所述第二延伸部和所述保护板与所述平面支撑部一体成型。
根据本申请提供的折叠显示装置，所述折叠显示装置还包括前框，所述前框设置在所述柔性显示面板远离所述第一支撑板和所述第二支撑板的一侧且覆盖所述柔性显示面板侧面的至少部分区域，所述前框包括第一前框和第二前框，所述第一前框与所述第一支撑板连接，所述第二前框与所述第二支撑板连接，所述第二前框包括前端部和侧端部，所述前端部和所述第二支撑板连接，所述侧端部与所述第一延伸部和所述第二延伸部相连接，所述侧端部为曲面。
根据本申请提供的折叠显示装置，所述柔性显示面板包括：
第一显示区，铺设于所述第一支撑板一侧；
第二显示区，铺设于所述平面支撑部一侧；
第一弯折显示区，铺设于所述弯折构件一侧；
第三显示区，铺设于所述第二支撑板远离所述第二显示区的一侧；以及
第二弯折显示区，铺设于所述曲面支撑部上并与所述曲面支撑部固定连接。
根据本申请提供的折叠显示装置，所述保护板包括相对设置的第一搭接端面和第二搭接端面，所述第一搭接端面位于所述保护板靠近所述第二显示区的一侧，所述第二搭接端面位于所述保护板靠近所述第三显示区的一侧；
所述折叠显示装置还包括第一盖板和第二盖板，所述第一盖板覆盖所述第一显示区、所述第二显示区和部分所述第二弯折显示区，所述第二盖板覆盖所述第三显示区和部分所述第二弯折显示区，所述第一盖板和所述第一搭接端面搭接，所述第二盖板和所述第二搭接端面搭接。
本申请提供一种折叠显示装置，包括：
第一支撑板；
第二支撑板，包括平面支撑部、曲面支撑部和保护板，所述曲面支撑部位于所述平面支撑部远离所述第一支撑板的一端并与所述平面支撑部相连接设置，所述保护板位于所述曲面支撑部远离所述第一支撑板的一端设置，所述保护板和所述曲面支撑部之间留有间隙且相连接设置；
弯折构件，所述第一支撑板和所述第二支撑板通过所述弯折构件进行转动连接；以及
柔性显示面板，铺设于所述第一支撑板、所述第二支撑板和所述弯折构件的一侧，所述柔性显示面板的一端绕过所述曲面支撑部并延伸至所述第二支撑板的另一侧，所述柔性显示面板穿设于所述间隙中。
根据本申请提供的折叠显示装置，所述保护板在所述曲面支撑部上的正投影覆盖所述曲面支撑部的弯折轴线。
根据本申请提供的折叠显示装置，在垂直于所述第一支撑板的平面方向上，所述曲面支撑部的截面形状为圆弧，所述保护板的截面面积为所述曲面支撑部的截面所在圆面积的1/5~1/6。
根据本申请提供的折叠显示装置，所述第二支撑板还包括用于连接所述曲面支撑部和所述保护板的第一延伸部和第二延伸部，所述第一延伸部和所述第二延伸部由所述平面支撑部向远离所述第一支撑板的方向延伸而成；其中，所述保护板的一端连接所述第一延伸部，所述保护板的另一端连接所述第二延伸部。
根据本申请提供的折叠显示装置，所述第一延伸部、所述第二延伸部和所述保护板与所述平面支撑部一体成型。
根据本申请提供的折叠显示装置，所述折叠显示装置还包括前框，所述前框设置在所述柔性显示面板远离所述第一支撑板和所述第二支撑板的一侧且覆盖所述柔性显示面板侧面的至少部分区域，所述前框包括第一前框和第二前框，所述第一前框与所述第一支撑板连接，所述第二前框与所述第二支撑板连接，所述第二前框包括前端部和侧端部，所述前端部和所述第二支撑板连接，所述侧端部与所述第一延伸部和所述第二延伸部相连接，所述侧端部为曲面。
根据本申请提供的折叠显示装置，所述保护板采用透明材料。
根据本申请提供的折叠显示装置，所述柔性显示面板包括：
第一显示区，铺设于所述第一支撑板一侧；
第二显示区，铺设于所述平面支撑部一侧；
第一弯折显示区，铺设于所述弯折构件一侧；
第三显示区，铺设于所述第二支撑板远离所述第二显示区的一侧；以及
第二弯折显示区，铺设于所述曲面支撑部上并与所述曲面支撑部固定连接。
根据本申请提供的折叠显示装置，所述保护板包括相对设置的第一搭接端面和第二搭接端面，所述第一搭接端面位于所述保护板靠近所述第二显示区的一侧，所述第二搭接端面位于所述保护板靠近所述第三显示区的一侧；
所述折叠显示装置还包括第一盖板和第二盖板，所述第一盖板覆盖所述第一显示区、所述第二显示区和部分所述第二弯折显示区，所述第二盖板覆盖所述第三显示区和部分所述第二弯折显示区，所述第一盖板和所述第一搭接端面搭接，所述第二盖板和所述第二搭接端面搭接。
根据本申请提供的折叠显示装置，所述第一盖板包括相互连接的第一平面盖板和第一曲面盖板，所述第一平面盖板覆盖所述第一显示区和所述第二显示区，所述第一曲面盖板覆盖部分所述第二弯折显示区；所述第二盖板包括相互连接的第二平面盖板和第二曲面盖板，所述第二平面盖板覆盖所述第三显示区，所述第二曲面盖板覆盖所述第二弯折显示区；
其中，所述第一曲面盖板和所述第一搭接端面搭接，所述第二曲面盖板和所述第二搭接端面搭接。
根据本申请提供的折叠显示装置，当所述折叠显示装置处于折叠状态时，所述第一显示区、所述第二显示区和所述第一弯折显示区围成楔形形状，所述第二显示区、所述第三显示区和所述第二弯折显示区围成U形形状。
根据本申请提供的折叠显示装置，所述弯折构件包括铰链机构、两个侧板和底板，两个所述侧板和所述底板分别与所述铰链机构连接；两个所述侧板分别位于所述铰链机构的两侧，所述底板位于所述铰链机构远离所述柔性显示面板的一侧。
根据本申请提供的折叠显示装置，所述第二支撑板包括首尾相接的第一侧框、第二侧框、第三侧框和第四侧框，所述第一侧框和所述第三侧框相对设置，所述第二侧框和所述第四侧框相对设置；所述第一侧框形成所述曲面支撑部，所述第二侧框、所述第三侧框和所述第四侧框围成所述平面支撑部。
本申请的有益效果为：本申请提供的折叠显示装置，包括第一支撑板、第二支撑板、弯折构件和柔性显示面板，第一支撑板和第二支撑板通过弯折构件进行转动连接，以使柔性显示面板通过弯折构件实现采用内折叠形式进行动态弯折；第二支撑板包括平面支撑部、曲面支撑部和保护板，柔性显示面板的一端绕过曲面支撑部并延伸至第二支撑板的另一侧，以使柔性显示面板实现采用外折叠形式进行静态弯折，能够实现曲面边缘显示；同时，柔性显示面板穿设于保护板和曲面支撑部之间的间隙中，以起到保护铺设于曲面支撑部的柔性显示面板的作用，避免柔性显示面板直接裸露在外侧而增加刮擦、磨损的风险。
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是申请的一些实施例，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是本申请实施例提供的一种折叠显示装置的爆炸结构示意图；
图2是本申请实施例提供的一种第二支撑板的结构示意图；
图3是图2中的第二支撑板的部分结构示意图；
图4A是本申请实施例提供的一种柔性显示面板处于展开状态时的结构示意图；
图4B是本申请实施例提供的一种柔性显示面板处于折叠状态时的结构示意图；
图5A是本申请实施例提供的一种折叠显示装置处于展开状态时的俯视结构示意图；
图5B是本申请实施例提供的一种折叠显示装置处于展开状态时的仰视结构示意图；
图5C是本申请实施例提供的一种折叠显示装置处于折叠状态时的结构示意图；
图6是图5C中的折叠显示装置沿A-A的截面结构示意图；
图7是本申请实施例提供的一种第二盖板的安装示意图；
图8是本申请实施例提供的一种弯折机构的结构示意图。
附图标记说明：
1、柔性显示面板；2、第一支撑板；3、第二支撑板；4、弯折构件；5、第一盖板；6、第二盖板；7、前框；
11、第一显示区；12、第二显示区；13、第三显示区；14、第一弯折显示区；15、第二弯折显示区；151、主弯折显示区；152、辅弯折显示区；
31、平面支撑部；32、曲面支撑部；321、弯折轴线；33、保护板；331、第一搭接端面；332、第二搭接端面；3a、第一侧框；311、外边缘线；3b、第二侧框；3c、第三侧框；3d、第四侧框；36、第一延伸部；37、第二延伸部；
41、铰链机构；42、侧板；43、底板；
51、第一平面盖板；52、第一曲面盖板；
6、第二盖板；61、第二平面盖板；62、第二曲面盖板；
71、第一前框；72、第二前框；721、前端部；722、侧端部。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的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，本领域技术人员在没有作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。此外，应当理解的是，此处所描述的具体实施方式仅用于说明和解释本申请，并不用于限制本申请。在本申请中，在未作相反说明的情况下，使用的方位词如“上”和“下”通常是指装置实际使用或工作状态下的上和下，具体为附图中的图面方向；而“内”和“外”则是针对装置的轮廓而言的。
请参阅图1~图3，图1是本申请实施例提供的一种折叠显示装置的爆炸结构示意图；图2是本申请实施例提供的一种第二支撑板的结构示意图；图3是图2中的第二支撑板的部分结构示意图；本申请提供一种折叠显示装置，所述折叠显示装置包括柔性显示面板1、第一支撑板2、第二支撑板3和弯折构件4。
具体地，所述第二支撑板3包括平面支撑部31、曲面支撑部32和保护板33，所述曲面支撑部32位于所述平面支撑部31远离所述第一支撑板2的一端并与所述平面支撑部31相连接设置，所述保护板33位于所述曲面支撑部32远离所述第一支撑板2的一端设置，所述保护板33和所述曲面支撑部32之间留有间隙且相连接设置。
所述弯折构件4位于所述第一支撑板2和第二支撑板3之间且连接所述第一支撑板2和所述第二支撑板3，所述第一支撑板2和第二支撑板3通过所述弯折构件4进行转动连接，从而实现采用内折叠形式进行动态弯折。
所述柔性显示面板1铺设于所述第一支撑板2、所述第二支撑板3和所述弯折构件4的一侧，所述柔性显示面板1的一端绕过所述曲面支撑部32并延伸至所述第二支撑板3的另一侧，所述柔性显示面板1穿设于所述间隙中，一方面，所述曲面支撑部32使得所述柔性显示面板1实现采用外折叠形式进行静态弯折；另一方面，所述保护板33能够起到保护铺设于所述曲面支撑部32的所述柔性显示面板1的作用，避免所述柔性显示面板1直接裸露在外侧而增加刮擦、磨损的风险。
请参阅图4A~图4B，图4A是本申请实施例提供的一种柔性显示面板处于展开状态时的结构示意图；图4B是本申请实施例提供的一种柔性显示面板处于折叠状态时的结构示意图。
所述柔性显示面板1包括第一显示区11、第二显示区12、第三显示区13、第一弯折显示区14和第二弯折显示区15；所述第一显示区11铺设于所述第一支撑板2一侧，所述第二显示区12铺设于所述平面支撑部31一侧，所述第一弯折显示区14铺设于所述弯折构件4一侧，所述第三显示区13铺设于所述第二支撑板3远离所述第二显示区12的一侧，所述第二弯折显示区15铺设于所述曲面支撑部32上并与所述曲面支撑部32固定连接。
如图4A所示，当所述折叠显示装置处于展开状态时，所述第三显示区13通过所述第二弯折显示区15采用外折叠形式进行静态弯折，所述第一显示区11、所述第二显示区12和所述第一弯折显示区14位于同一平面。由于本申请中的所述第二弯折显示区15为曲面且可实现显示，则所述第一显示区11、所述第二显示区12、所述第一弯折显示区14和部分所述第二弯折显示区15可作为所述折叠显示装置的主屏进行画面显示。
如图4B所示，当所述折叠显示装置处于折叠状态时，所述第一弯折显示区14处于弯曲状态，所述第一显示区11和所述第二显示区12通过所述第一弯折显示区14采用内折叠形式进行动态弯折，使得所述第一显示区11的显示面和所述第二显示区12的显示面彼此面对，所述第一显示区11、所述第二显示区12和所述第一弯折显示区14不显示，同样地，所述第三显示区13和部分所述第二弯折显示区15可作为所述折叠显示装置的副屏进行画面显示。相较于现有技术中采用直板屏作为副屏的折叠显示装置，本申请中的副屏能够实现曲面边缘显示，可使副屏具有更协调的长宽比和更宽的显示范围，有利于提高副屏的整体屏占比。
可以理解的是，与现有的采用两块屏幕分别作为主屏和副屏设计的折叠显示装置相比，整个所述折叠显示装置仅采用一块所述柔性显示面板1，并将所述柔性显示面板1分为两部分分别作为主屏和副屏，能够同时满足所述折叠显示装置的主副屏单独显示的效果，从而达到一屏双用、共用的目的。
进一步地，当所述折叠显示装置处于折叠状态时，所述第一显示区11、所述第二显示区12和所述第一弯折显示区14围成楔形形状，所述第二显示区12、所述第三显示区13和所述第二弯折显示区15围成U形形状，使得所述折叠显示装置整机总体结构更为紧凑，总体厚度更轻薄化。
请结合图1、图5A~图5C，图5A是本申请实施例提供的一种折叠显示装置处于展开状态时的俯视结构示意图；图5B是本申请实施例提供的一种折叠显示装置处于展开状态时的仰视结构示意图；图5C是本申请实施例提供的一种折叠显示装置处于折叠状态时的结构示意图。
具体地，所述第一支撑板2对应所述第一显示区11设置，用于支撑所述第一显示区11；所述第二支撑板3对应所述第二显示区12、所述第二弯折显示区15和所述第三显示区13设置，用于支撑所述第二显示区12、所述第三显示区13和所述第二弯折显示区15；所述弯折构件4对应所述第一弯折显示区14设置，当所述折叠显示装置处于展开状态时，所述弯折构件4用于支撑所述第一弯折显示区14。
请参阅图5A和5B，当所述折叠显示装置处于展开状态时，所述弯折构件4朝向所述第一弯折显示区14的表面与所述第一支撑板2和所述第二支撑板3朝向所述第一显示区11和所述第二显示区12的表面共平面，以形成所述柔性显示面板1的支撑平面。
请参阅图5C，当所述折叠显示装置处于折叠状态时，所述第一显示区11与所述第一支撑板2内侧贴合，所述第二显示区12与所述第二支撑板3内侧贴合，所述第一弯折显示区14与所述弯折构件4内侧贴合，所述第三显示区13与所述第二支撑板3组装为一体。当不使用所述折叠显示装置整机时，可通过折叠动作将所述第一显示区11、第二显示区12和所述第一弯折显示区收藏于由所述第一支撑板2、所述第二支撑板3和所述弯折构件4内部形成的容纳空间内，使得主屏能够得到更好的收藏保护。
可以理解的是，相较于传统折叠显示装置设置两块独立的屏体分别作为主屏和副屏，副屏采用直板屏的设计，本申请仅采用一块所述柔性显示面板1即可实现主副屏单独显示的效果，副屏屏体与所述第二支撑板3边缘不需要预留前框的安装空间，能够节省所述第二支撑板3的厚度尺寸空间，有利于整机的轻薄化设计，使得所述折叠显示装置具备更佳的可折叠性能，便于收藏携带。
具体地，所述柔性显示面板1至少在对应所述弯折构件4和所述第二支撑板3远离所述第一支撑板2的一侧的区域具有柔性可弯曲。所述柔性显示面板1可以是有机发光二极管显示面板，也可以是其它形式的具有柔性特点的显示面板。
请继续参阅图2和图3，所述第二支撑板3包括首尾相接的第一侧框3a、第二侧框3b、第三侧框3c和第四侧框3d，所述第一侧框3a、所述第二侧框3b、所述第三侧框3c和所述第四侧框3d围成的区域用于支撑所述第二显示区12和所述第三显示区13。所述第一侧框3a和所述第三侧框3c相对设置，所述第二侧框3b和所述第四侧框3d相对设置；所述第一侧框3a形成所述曲面支撑部32，所述第二侧框3b、所述第三侧框3c和所述第四侧框3d围成所述平面支撑部31。
所述第二支撑板3还包括用于连接所述曲面支撑部32和所述保护板33的第一延伸部36和第二延伸部37，所述第一延伸部36和所述第二延伸部37由所述平面支撑部向远离所述第一支撑板2的方向延伸而成，具体地，所述第一延伸部36由所述第二侧框3b向远离所述第一支撑板2的方向延伸而成，所述第二延伸部37由所述第四侧框3d向远离所述第一支撑板2的方向延伸而成；所述第一延伸部36和所述第二延伸部37可为曲面。
所述保护板33位于所述第一侧框3a远离所述第三侧框3c的一侧，所述保护板33的一端连接所述第一延伸部36，所述保护板33的另一端连接所述第二延伸部37，所述保护板33和所述第一侧框3a之间留有间隙，所述柔性显示面板1穿设于所述间隙中，所述保护板33能够起到保护所述第二弯折显示区15的作用，避免所述第二弯折显示区15的屏体直接裸露在外侧而增加刮擦、磨损的风险。
具体地，所述柔性显示面板1与所述第一支撑板2、所述第二支撑板3和所述弯折构件4的组装过程为：首先，所述柔性显示面板1的所述第一显示区11、所述第二显示区12和所述第一弯折显示区14分别与所述第一支撑板2、所述第二支撑板3和所述弯折构件4贴合成型；之后将所述柔性显示面板1反向折叠，所述柔性显示面板1直接穿过所述间隙，使得所述第二弯折显示区15与所述第一侧框3a贴合；最后将所述第三显示区13所述第二支撑板3远离所述第二显示区12的一侧贴合。
请结合图1~图3、图5C和图6，图6是图5C中的折叠显示装置沿A-A的截面结构示意图。
所述曲面支撑部32包括弯折轴线321，所述弯折轴线321为沿平行于所述第一侧框3a的延伸方向的外边缘线，所述弯折轴线321在所述第一侧框3a上的投影与所述外边缘线311重合，由于所述弯折轴线321处受到刮擦、磨损的机率最大，因此，所述保护板33在所述曲面支撑部32上的正投影覆盖所述曲面支撑部32的所述弯折轴线321，有利于降低所述第二弯折显示区15受到刮擦、磨损的机率。
在本申请实施例中，在垂直于所述第一支撑板2的平面方向上，所述曲面支撑部32的截面形状为圆弧，所述保护板33的截面面积为所述曲面支撑部32的截面所在圆面积的1/5~1/6；这样设置的目的为：一方面，避免所述保护板33体积过大使得被所述保护板33遮挡的第二弯折显示区15的区域较大，导致所述第二弯折显示区15的显示面积减小，降低了所述柔性显示面板1的整体屏占比；另一方面，避免所述保护板33体积过小使得所述第二弯折显示区15易受到刮擦、磨损的区域未完全被所述保护板33遮挡，提高了所述第二弯折显示区15遭到破坏的机率。
所述保护板33可作为所述折叠显示装置主屏和副屏的分界线，所述保护板33将所述第二弯折显示区15一分为二。具体地，所述第二弯折显示区15包括主弯折显示区151和辅弯折显示区152，所述主弯折显示区151为所述第二弯折显示区15靠近所述第二显示区12的区域，可作为主屏的一部分显示区域。所述辅弯折显示区为所述第二弯折显示区15靠近所述第三显示区13的区域，可作为副屏的一部分显示区域，从而避免了所述折叠显示装置内外侧边缘交界处位置存在结构段差现象，有利于改善副屏的整体观感质量。
进一步地，所述折叠显示装置还包括屏体显示驱动系统（图中未示出），用于实现所述柔性显示面板两种显示状态自由切换效果。具体地，所述屏体显示驱动系统包括第一驱动模块和第二驱动模块，当所述折叠显示装置处于展开状态时，所述第一驱动模块驱动所述第一显示区11、所述第二显示区12、所述第一弯折显示区14和所述主弯折显示区151，以实现主屏显示；当所述折叠显示装置处于折叠状态时，所述第二驱动模块驱动所述第三显示区13和所述辅弯折显示区152，以实现副屏显示。
具体地，所述屏体显示驱动系统可为驱动芯片，控制主屏显示的所述第一驱动模块和控制副屏显示的所述第二驱动模块集成于同一驱动芯片中，也就是说，所述折叠显示装置仅需设置一个/种驱动芯片即可控制所述柔性显示面板的两种显示状态，相较于现有技术，一方面，主屏和副屏采用一体化屏体，降低了所述折叠显示装置的驱动系统和操作系统设计难度；另一方面，无需单独为副屏设置占据整机一定的厚度尺寸的驱动芯片和电路板等电子器件，降低了所述折叠显示装置厚度尺寸，有利于实现整机轻薄化。
可选地，所述保护板33可采用透明材料，例如透明玻璃，以使被所述保护板33遮挡的所述第二弯折显示区15的区域也可显示，有利于提升所述柔性显示面板1的整体屏占比。
所述保护板33包括相对设置的第一搭接端面331和第二搭接端面332，所述第一搭接端面331位于所述保护板33靠近所述第二显示区12的一侧，用于搭接所述折叠显示装置的第一盖板5；所述第二搭接端面332位于所述保护板33靠近所述第三显示区13的一侧，用于搭接所述折叠显示装置的第二盖板6。
请结合图1、图6和图7，图7是本申请实施例提供的一种第二盖板的安装示意图。
所述第一盖板5覆盖所述第一显示区11、所述第二显示区12和部分所述第二弯折显示区15（所述主弯折显示区151未被所述保护板33遮挡的区域），用于保护所述柔性显示面板1的主屏；所述第二盖板6覆盖所述第三显示区13和部分所述第二弯折显示区15（所述辅弯折显示区152未被所述保护板33遮挡的区域），用于保护所述柔性显示面板1的副屏。
所述第一盖板5和所述第一搭接端面331搭接，以便于所述第一盖板5更易于固定安装于所述第二支撑板3上，所述第二盖板6和所述第二搭接端面332搭接，以便于所述第二盖板6更易于固定安装于所述第二支撑板3上，有利于提升所述第一盖板5和所述第二盖板6的安装可靠性。
可选地，所述第一盖板5和所述第一搭接端面331之间、所述第二盖板6和所述第二搭接端面332之间均可以通过胶层粘接实现搭接。具体地，所述第一盖板5和所述第一搭接端面331之间、所述第二盖板6和所述第二搭接端面332之间分别设置有双面胶，所述双面胶可为光学胶。
具体地，所述第一盖板5和所述第一搭接端面331之间、所述第二盖板6和所述第二搭接端面332之间可以通过机台贴合或手工贴合的方式直接贴合成型。
可选地，所述第一盖板5和所述第一搭接端面331之间、所述第二盖板6和所述第二搭接端面332之间也可以通过机械连接方式实现搭接，例如铆钉固定、螺纹连接。
进一步地，所述第一盖板5包括相互连接的第一平面盖板51和第一曲面盖板52，所述第一平面盖板51覆盖所述第一显示区11和所述第二显示区12，所述第一曲面盖板52覆盖部分所述第二弯折显示区15；所述第二盖板6包括相互连接的第二平面盖板61和第二曲面盖板62，所述第二平面盖板61覆盖所述第三显示区13，所述第二曲面盖板62覆盖所述第二弯折显示区15；其中，所述第一曲面盖板52和所述第一搭接端面331搭接，所述第二曲面盖板62和所述第二搭接端面332搭接。
请参阅图1，所述折叠显示装置还包括前框7，所述前框7设置在所述柔性显示面板1远离所述第一支撑板2和所述第二支撑板3的一侧且覆盖所述柔性显示面板1侧面的至少部分区域。
所述前框7可为分体式前框，具体地，所述前框7包括第一前框71和第二前框72，所述第一前框71与所述第一显示区11对应设置，所述第二前框72与所述第二显示区12和所述第二弯折显示区15对应设置。所述第一前框71与所述第一支撑板2连接，所述第二前框72与所述第二支撑板3连接。
所述第二前框72包括相互连接的前端部721和侧端部722，所述前端部721与所述第二显示区12对应设置，所述侧端部722与所述第二弯折显示区15对应设置，所述前端部721和所述第二支撑板3连接，具体地，所述前端部721和所述第二侧框3b连接，所述侧端部722与所述第一延伸部36和所述第二延伸部37相连接，同样地，所述侧端部722为曲面。
请结合图1和图8，图8是本申请实施例提供的一种弯折机构的结构示意图。所述弯折构件4包括铰链机构41、两个侧板42和底板43，两个所述侧板42和所述底板43用于保护所述铰链机构41。两个所述侧板42和所述底板43分别与所述铰链机构41连接；两个所述侧板42分别位于所述铰链机构41的两侧，所述底板43位于所述铰链机构41远离所述柔性显示面板1的一侧。
当然地，所述弯折构件4也可采用其他类型的可弯折机构，本申请实施例不以此为限。
有益效果为：本申请实施例提供的折叠显示装置，包括第一支撑板、第二支撑板、弯折构件和柔性显示面板，第一支撑板和第二支撑板通过弯折构件进行转动连接，以使柔性显示面板通过弯折构件实现采用内折叠形式进行动态弯折；第二支撑板包括平面支撑部、曲面支撑部和保护板，柔性显示面板的一端绕过曲面支撑部并延伸至第二支撑板的另一侧，以使柔性显示面板实现采用外折叠形式进行静态弯折，能够实现曲面边缘显示；同时，柔性显示面板穿设于保护板和曲面支撑部之间的间隙中，以起到保护铺设于曲面支撑部的柔性显示面板的作用，避免柔性显示面板直接裸露在外侧而增加刮擦、磨损的风险。
综上所述，虽然本申请已以优选实施例揭露如上，但上述优选实施例并非用以限制本申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。
Claims (20)
- 一种折叠显示装置，包括：第一支撑板；第二支撑板，包括平面支撑部、曲面支撑部和保护板，所述曲面支撑部位于所述平面支撑部远离所述第一支撑板的一端并与所述平面支撑部相连接设置，所述保护板位于所述曲面支撑部远离所述第一支撑板的一端设置，所述保护板和所述曲面支撑部之间留有间隙且相连接设置，所述保护板在所述曲面支撑部上的正投影覆盖所述曲面支撑部的弯折轴线，所述保护板采用透明材料；弯折构件，所述第一支撑板和所述第二支撑板通过所述弯折构件进行转动连接；以及柔性显示面板，铺设于所述第一支撑板、所述第二支撑板和所述弯折构件的一侧，所述柔性显示面板的一端绕过所述曲面支撑部并延伸至所述第二支撑板的另一侧，所述柔性显示面板穿设于所述间隙中。
- 根据权利要求1所述的折叠显示装置，其中，在垂直于所述第一支撑板的平面方向上，所述曲面支撑部的截面形状为圆弧，所述保护板的截面面积为所述曲面支撑部的截面所在圆面积的1/5~1/6。
- 根据权利要求1所述的折叠显示装置，其中，所述第二支撑板还包括用于连接所述曲面支撑部和所述保护板的第一延伸部和第二延伸部，所述第一延伸部和所述第二延伸部由所述平面支撑部向远离所述第一支撑板的方向延伸而成；其中，所述保护板的一端连接所述第一延伸部，所述保护板的另一端连接所述第二延伸部。
- 根据权利要求3所述的折叠显示装置，其中，所述第一延伸部、所述第二延伸部和所述保护板与所述平面支撑部一体成型。
- 根据权利要求3所述的折叠显示装置，其中，所述折叠显示装置还包括前框，所述前框设置在所述柔性显示面板远离所述第一支撑板和所述第二支撑板的一侧且覆盖所述柔性显示面板侧面的至少部分区域，所述前框包括第一前框和第二前框，所述第一前框与所述第一支撑板连接，所述第二前框与所述第二支撑板连接，所述第二前框包括前端部和侧端部，所述前端部和所述第二支撑板连接，所述侧端部与所述第一延伸部和所述第二延伸部相连接，所述侧端部为曲面。
- 根据权利要求1所述的折叠显示装置，其中，所述柔性显示面板包括：第一显示区，铺设于所述第一支撑板一侧；第二显示区，铺设于所述平面支撑部一侧；第一弯折显示区，铺设于所述弯折构件一侧；第三显示区，铺设于所述第二支撑板远离所述第二显示区的一侧；以及第二弯折显示区，铺设于所述曲面支撑部上并与所述曲面支撑部固定连接。
- 根据权利要求6所述的折叠显示装置，其中，所述保护板包括相对设置的第一搭接端面和第二搭接端面，所述第一搭接端面位于所述保护板靠近所述第二显示区的一侧，所述第二搭接端面位于所述保护板靠近所述第三显示区的一侧；所述折叠显示装置还包括第一盖板和第二盖板，所述第一盖板覆盖所述第一显示区、所述第二显示区和部分所述第二弯折显示区，所述第二盖板覆盖所述第三显示区和部分所述第二弯折显示区，所述第一盖板和所述第一搭接端面搭接，所述第二盖板和所述第二搭接端面搭接。
- 一种折叠显示装置，包括：第一支撑板；第二支撑板，包括平面支撑部、曲面支撑部和保护板，所述曲面支撑部位于所述平面支撑部远离所述第一支撑板的一端并与所述平面支撑部相连接设置，所述保护板位于所述曲面支撑部远离所述第一支撑板的一端设置，所述保护板和所述曲面支撑部之间留有间隙且相连接设置；弯折构件，所述第一支撑板和所述第二支撑板通过所述弯折构件进行转动连接；以及柔性显示面板，铺设于所述第一支撑板、所述第二支撑板和所述弯折构件的一侧，所述柔性显示面板的一端绕过所述曲面支撑部并延伸至所述第二支撑板的另一侧，所述柔性显示面板穿设于所述间隙中。
- 根据权利要求8所述的折叠显示装置，其中，所述保护板在所述曲面支撑部上的正投影覆盖所述曲面支撑部的弯折轴线。
- 根据权利要求9所述的折叠显示装置，其中，在垂直于所述第一支撑板的平面方向上，所述曲面支撑部的截面形状为圆弧，所述保护板的截面面积为所述曲面支撑部的截面所在圆面积的1/5~1/6。
- 根据权利要求8所述的折叠显示装置，其中，所述第二支撑板还包括用于连接所述曲面支撑部和所述保护板的第一延伸部和第二延伸部，所述第一延伸部和所述第二延伸部由所述平面支撑部向远离所述第一支撑板的方向延伸而成；其中，所述保护板的一端连接所述第一延伸部，所述保护板的另一端连接所述第二延伸部。
- 根据权利要求11所述的折叠显示装置，其中，所述第一延伸部、所述第二延伸部和所述保护板与所述平面支撑部一体成型。
- 根据权利要求11所述的折叠显示装置，其中，所述折叠显示装置还包括前框，所述前框设置在所述柔性显示面板远离所述第一支撑板和所述第二支撑板的一侧且覆盖所述柔性显示面板侧面的至少部分区域，所述前框包括第一前框和第二前框，所述第一前框与所述第一支撑板连接，所述第二前框与所述第二支撑板连接，所述第二前框包括前端部和侧端部，所述前端部和所述第二支撑板连接，所述侧端部与所述第一延伸部和所述第二延伸部相连接，所述侧端部为曲面。
- 根据权利要求8所述的折叠显示装置，其中，所述保护板采用透明材料。
- 根据权利要求8所述的折叠显示装置，其中，所述柔性显示面板包括：第一显示区，铺设于所述第一支撑板一侧；第二显示区，铺设于所述平面支撑部一侧；第一弯折显示区，铺设于所述弯折构件一侧；第三显示区，铺设于所述第二支撑板远离所述第二显示区的一侧；以及第二弯折显示区，铺设于所述曲面支撑部上并与所述曲面支撑部固定连接。
- 根据权利要求15所述的折叠显示装置，其中，所述保护板包括相对设置的第一搭接端面和第二搭接端面，所述第一搭接端面位于所述保护板靠近所述第二显示区的一侧，所述第二搭接端面位于所述保护板靠近所述第三显示区的一侧；所述折叠显示装置还包括第一盖板和第二盖板，所述第一盖板覆盖所述第一显示区、所述第二显示区和部分所述第二弯折显示区，所述第二盖板覆盖所述第三显示区和部分所述第二弯折显示区，所述第一盖板和所述第一搭接端面搭接，所述第二盖板和所述第二搭接端面搭接。
- 根据权利要求16所述的折叠显示装置，其中，所述第一盖板包括相互连接的第一平面盖板和第一曲面盖板，所述第一平面盖板覆盖所述第一显示区和所述第二显示区，所述第一曲面盖板覆盖部分所述第二弯折显示区；所述第二盖板包括相互连接的第二平面盖板和第二曲面盖板，所述第二平面盖板覆盖所述第三显示区，所述第二曲面盖板覆盖所述第二弯折显示区；其中，所述第一曲面盖板和所述第一搭接端面搭接，所述第二曲面盖板和所述第二搭接端面搭接。
- 根据权利要求15所述的折叠显示装置，其中，当所述折叠显示装置处于折叠状态时，所述第一显示区、所述第二显示区和所述第一弯折显示区围成楔形形状，所述第二显示区、所述第三显示区和所述第二弯折显示区围成U形形状。
- 根据权利要求8所述的折叠显示装置，其中，所述弯折构件包括铰链机构、两个侧板和底板，两个所述侧板和所述底板分别与所述铰链机构连接；两个所述侧板分别位于所述铰链机构的两侧，所述底板位于所述铰链机构远离所述柔性显示面板的一侧。
- 根据权利要求8所述的折叠显示装置，其中，所述第二支撑板包括首尾相接的第一侧框、第二侧框、第三侧框和第四侧框，所述第一侧框和所述第三侧框相对设置，所述第二侧框和所述第四侧框相对设置；所述第一侧框形成所述曲面支撑部，所述第二侧框、所述第三侧框和所述第四侧框围成所述平面支撑部。
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