WO2022089038A1 - 显示装置 - Google Patents
显示装置 Download PDFInfo
- Publication number
- WO2022089038A1 WO2022089038A1 PCT/CN2021/117606 CN2021117606W WO2022089038A1 WO 2022089038 A1 WO2022089038 A1 WO 2022089038A1 CN 2021117606 W CN2021117606 W CN 2021117606W WO 2022089038 A1 WO2022089038 A1 WO 2022089038A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- display panel
- boundary
- circuit board
- display device
- rigid
- Prior art date
Links
- 238000009434 installation Methods 0.000 claims abstract description 47
- 238000005452 bending Methods 0.000 claims abstract description 45
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 230000017525 heat dissipation Effects 0.000 claims description 26
- 239000004642 Polyimide Substances 0.000 claims description 9
- 229920001721 polyimide Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 36
- 238000011900 installation process Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000000692 anti-sense effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly
-
- 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
- H05K1/00—Printed circuits
- H05K1/02—Details
-
- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
- H05K7/20963—Heat transfer by conduction from internal heat source to heat radiating structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
- H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
Definitions
- the present disclosure relates to the field of display technology, and in particular, to a display device.
- foldable display products such as foldable mobile phones
- in-folding display products are usually equipped with a secondary display panel as one of the usage scenarios; due to the structural design limitations of folding display products, the secondary display panel is installed
- FPC Flexible Printed Circuit
- the purpose of the present disclosure is to provide a display device, which can improve the problem of die printing in the installation and improve the display effect.
- the present disclosure provides a display device comprising:
- a first flexible circuit board disposed on the back side of the first display panel, the first flexible circuit board includes a first part, a second part and a bending part connecting the first part and the second part , the first part is electrically connected to the first display panel, and the second part is located on a side of the first part away from the first display panel;
- a rigid membrane is located between the back side of the first display panel and the bent portion, the rigid membrane supports the bent portion, and the rigidity of the rigid membrane is greater than that of the first display panel Rigidity, the rigid diaphragm is used to disperse the rebound force generated by the bending part.
- the bending axis corresponding to the bending portion extends in the first direction, and the orthographic projection of the bending portion on the first display panel has a first boundary and a second boundary opposite in the second direction, the second direction is perpendicular to the first direction;
- the orthographic projection of the rigid film on the first display panel has a third boundary and a fourth boundary opposite in the second direction, and the third boundary is located away from the first boundary and away from the second boundary On one side of the boundary, the fourth boundary is located on the side of the second boundary away from the first boundary.
- the distance between the third boundary and the first boundary in the second direction is equal to the distance between the fourth boundary and the second boundary in the second direction on the spacing.
- the distance between the third boundary and the first boundary in the second direction is greater than or equal to 1 cm;
- the distance in the second direction is greater than or equal to 1 cm.
- a buffer portion is provided in the bending space of the bending portion, and an orthographic projection of the buffer portion on the first display panel is located where the rigid membrane is located. within the orthographic projection on the first display panel.
- the buffer portion is disposed at a position where the bent portion is close to the first portion, and an orthographic projection of the buffer portion on the first display panel is located at the central area of the orthographic projection of the rigid diaphragm on the first display panel.
- the rigid diaphragm has a thickness of 0.1 mm to 0.5 mm.
- the material of the rigid diaphragm is polyimide or stainless steel.
- the display device further includes a first heat dissipation film layer disposed on the back side of the first display panel and located on the rigid film close to the first display panel side;
- the rigidity of the rigid diaphragm is greater than the rigidity of the first heat dissipation film layer.
- the orthographic projection of the first heat dissipation film layer on the first display panel is located in or coincides with the first display panel;
- the orthographic projection of the rigid film on the first display panel is located within the orthographic projection of the first heat dissipation film layer on the first display panel.
- the first middle frame includes a first mounting plate and a first side plate, the first mounting plate has an opposite first mounting surface and a second mounting surface, and the first side plate is arranged on the first mounting surface. and the first installation surface to form a first installation groove; wherein, the first display panel, the first flexible circuit board, and the rigid film are located in the first installation groove, and all the the first part is located on the side of the second part away from the first installation surface;
- a first main circuit board disposed on the first mounting surface, a first connection terminal is disposed on the first main circuit board, and the first connection terminal is electrically connected to the second part;
- a first cover plate is arranged on the display side of the first display panel, the edge of the first cover plate is beyond the edge of the first display panel, and the first cover plate is beyond the edge of the first display panel. Part of the end surface of the first side plate away from the first installation surface is overlapped.
- the first installation surface is provided with an escape groove corresponding to the bending portion, and the first installation surface is provided with a first assembly groove; wherein, the The first main circuit board is located in the first assembly groove, and a part of the first connection terminal extends out of the first assembly groove and is electrically connected with the second part.
- the second middle frame is rotatably connected with the first middle frame, and the second middle frame at least includes a second mounting plate, and the second mounting plate has an opposite third mounting surface and a fourth mounting surface;
- a second display panel located on the side of the second installation surface away from the first installation surface and at the side of the third installation surface away from the fourth installation surface;
- the relative rotation of the first middle frame and the second middle frame can make the third installation surface rotate to a position facing the second installation surface, and at the same time, the second display panel can be bent.
- the second main circuit board is arranged on the first mounting board or the second mounting board, and the second main circuit board is provided with a second connection terminal;
- one end of the second flexible circuit board is electrically connected to the second connection terminal, and the other end is electrically connected to the second display panel;
- a second cover plate is disposed on the side of the second display panel away from the second installation surface and the third installation surface, and the second cover plate can be bent.
- the first mounting surface is further provided with a second mounting groove
- the first mounting plate is further provided with a through hole penetrating the first mounting surface and the second mounting surface, and the through hole is connected to the second mounting surface.
- the second assembly groove is connected;
- the second main circuit board and the second connection terminal are located in the second assembly groove, and one end of the second flexible circuit board is electrically connected to the second connection terminal through the through hole;
- the second main circuit board and the first main circuit board have an integrated structure or are provided independently of each other.
- 1 to 5 respectively show schematic structural diagrams of display devices according to different embodiments of the present disclosure.
- on described in this text can mean that one layer is directly formed or disposed on another layer, or it can mean that one layer is indirectly formed or disposed on another layer, that is, between two layers Other layers also exist.
- connection should be construed in a broad sense.
- it may be a fixed connection, or a detachable connection, or an integral connection; it may be a mechanical connection, or an electrical connection; it may be a direct connection, or an indirect connection through an intermediate piece, or an internal communication between two elements.
- connection may be a fixed connection, or a detachable connection, or an integral connection; it may be a mechanical connection, or an electrical connection; it may be a direct connection, or an indirect connection through an intermediate piece, or an internal communication between two elements.
- An embodiment of the present disclosure provides a display device, which can be a foldable product, but not limited to this, and can also be a non-folding product; specifically, as shown in FIG. 1 , the display device can include a first display module 10 , the first flexible circuit board 11 and the rigid diaphragm 12, wherein:
- the first display module 10 may be a flexible display module, optionally, the first display module 10 may include a first display panel 101 and a first heat dissipation film layer 102, wherein the first display panel 101 may be an OLED ( Organic Light-Emitting Diode) display; it should be noted that the first display panel 101 may have opposite display sides and backsides in its thickness direction Z; and the first heat dissipation film layer 102 may be disposed on the first display panel 101 Back side; the orthographic projection of the first heat dissipation film layer 102 on the first display panel 101 is located in the first display panel 101 or coincides with it.
- OLED Organic Light-Emitting Diode
- the heat generated by the first display panel 101 can be quickly dissipated by disposing the first heat dissipation film layer 102 to avoid damage to the first display panel 101 due to excessive temperature.
- the first heat-dissipating film layer 102 may be a multi-layer structure, and the first heat-dissipating film layer 102 may include an EMBO (embossed silicone buffer material) layer, a Foam (foam material) layer, and a PI (polyimide) layer which are arranged in sequence. amine film) layer, Cu (copper) foil layer and wave absorbing material layer; but not limited to this, the first heat dissipation film layer 102 can also be composed of other film layers, as long as it can ensure that the first heat dissipation film layer 102 has good heat dissipation performance and Bendable performance is sufficient. In addition, the first heat dissipation film layer 102 may also have a single-layer structure, depending on the specific situation.
- EMBO embssed silicone buffer material
- Foam Foam material
- PI polyimide
- the first heat dissipation film layer 102 can also be composed of other film layers, as long as it can ensure that
- the first flexible circuit board 11 can be disposed on the back side of the first display panel 101 , specifically, can be disposed on the side of the first heat dissipation film layer 102 away from the first display panel 101 ; as shown in FIG. 1 , the first flexible circuit board 11 may include a first part 110, a second part 111, and a bending part 112 connecting the first part 110 and the second part 111. Specifically, the orthographic projection of the bending part 112 on the first display panel 101
- the display area of the display panel 101; the first part 110 can be electrically connected to the first display panel 101; the second part 111 can be located on the side of the first part 110 away from the first display panel 101, it should be understood that, as shown in FIG.
- the display device of the embodiment of the present disclosure may further include a first main circuit board 13, and the second portion 111 may be electrically connected to the first main circuit board 13. It should be noted that the first main circuit board 13 may be located on the first main circuit board 13. The second part 111 is away from one side of the first part 110 .
- the rigid film 12 may be located between the backside of the first display panel 101 and the bent portion 112 ;
- the orthographic projection of the rigid film 12 on the first display panel 101 can be located in the orthographic projection of the first heat dissipation film 102 on the first display panel 101; and the rigid film 12 can support
- the rigidity of the rigid film 12 may be greater than the rigidity of the first heat dissipation film 102 and the first display panel 101, that is, the rigid film 12 is the same as the rigidity of the first display panel 101.
- the material of the rigid diaphragm 12 can be polyimide (PI) or stainless steel (SUS). It should be understood that the PI material used for making the rigid diaphragm 12 should be a hard PI material.
- the thickness of the rigid diaphragm 12 may be 0.1 mm to 0.5 mm, such as: 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, etc., by designing the thickness of the rigid diaphragm 12 to be greater than or equal to 0.1 mm , to ensure that the rigid film 12 has sufficient rigidity, and the thickness of the rigid film 12 is designed to be less than or equal to 0.5 mm, which can reduce the overall thickness of the product.
- the rigid film 12 is disposed between the bent portion 112 of the first flexible circuit board 11 and the back side of the first display panel 101 , and the rigid film 12 is not easily deformed by force, thus During the installation process, the rigid film 12 can disperse and release the resilient force generated by the bending portion 112 , thus, it can avoid obvious embossing at the position corresponding to the bending portion 112 in the display area of the first display panel 101 . situation, improve the display effect.
- bent portion 112 of the first flexible circuit board 11 in the embodiment of the present disclosure is not limited to be provided in the display area of the first display panel 101 , but may also be provided in a non-display area.
- the installation process of the aforementioned structures may be as follows: first, the second part 111 of the first flexible circuit board 11 is electrically connected to the first main circuit board 13, and then the first flexible circuit board 11 is bent, In order to form the aforementioned bent portion 112 , the first portion 110 is located on the side of the second portion 111 away from the first main circuit board 13 . It should be noted that the first part 110 can be electrically connected to the first display panel 101 before the second part 111 is electrically connected to the first main circuit board 13 , or the first part 110 can be bent away from the second part 111 One side of the first main circuit board 13 is then electrically connected to the first display panel 101 .
- part of the first display panel 101 can be bent to the back side (not shown in the figure) and bound with the first part 110 of the first flexible circuit board 11 to realize the first display panel 101 and the first
- the first main circuit board 13 may be provided with a first connection terminal 14
- the second portion 111 of the first flexible circuit board 11 may be provided with a first connection terminal 14 capable of being buckled
- the mating terminal 15 that is installed or inserted, that is, the electrical connection between the first main circuit board 13 and the second part 111 is realized by the mating terminal 15 and the first connection terminal 14 being snapped or inserted.
- the bending axis corresponding to the bending portion 112 of the first flexible circuit board 11 may extend in a first direction (not shown in the figure), and the bending portion 112 is on the first display panel.
- the orthographic projection on 101 has a first boundary A and a second boundary B opposite in the second direction X.
- the second boundary B is the first part 110 and the second part 111 in the bent part 112 close to the first part 110 and the second part 111 .
- the first boundary A is the side of the bent portion 112 away from the first portion 110 and the second portion 111 , as shown in FIGS.
- the orthographic projection has a third boundary C and a fourth boundary D opposite in the second direction X.
- the third boundary C is located on the side of the first boundary A away from the second boundary B.
- the four boundaries D are located on the side of the second boundary B away from the first boundary A.
- the rigid diaphragm 12 can be bent in a better manner.
- the resilient force generated by the folded portion 112 is dispersed. Specifically, compared with the solution in which the first boundary A and the second boundary B of the folded portion 112 are located outside the third boundary C and the fourth boundary D of the rigid diaphragm 12, It can be avoided that the rebound force generated by the bending portion 112 is concentrated on the third boundary C and the fourth boundary D of the rigid film 12, so that the third boundary C and the fourth boundary between the first display panel 101 and the rigid film 12 can be avoided.
- the position corresponding to D is stamped, so as to improve the display effect (pay attention to avoid this antisense expression).
- the second direction X mentioned in the embodiment of the present disclosure is perpendicular to the first direction (not shown in the figure); and the first direction and the second direction X are both the thickness direction Z of the first display panel 101 (ie, the thickness direction Z of the display device) is perpendicular.
- the distance between the third boundary C of the rigid membrane 12 and the first boundary A of the bending portion 112 in the second direction X may be equal to the distance between the fourth boundary D of the rigid membrane 12 and the second boundary A of the bending portion 112 .
- the distance between the boundary B in the second direction X can ensure the uniformity of the overall force of the rigid diaphragm 12, so as to better disperse the stress; but not limited to this, the third boundary C of the rigid diaphragm 12 and The distance between the first boundary A of the bending portion 112 in the second direction X and the distance between the fourth boundary D of the rigid diaphragm 12 and the second boundary B of the bending portion 112 in the second direction X may also be unequal.
- the distance between the third boundary C of the rigid diaphragm 12 and the first boundary A of the bending portion 112 in the second direction X may be greater than or equal to 1 cm; the fourth boundary D of the rigid diaphragm 12 is equal to or greater than 1 cm.
- the distance between the second boundary B of the bent portion 112 in the second direction X is greater than or equal to 1 cm, and this design enables the rigid diaphragm 12 to better disperse stress.
- the area of the rigid diaphragm 12 in the embodiment of the present disclosure can be determined according to the actual situation, as long as it can better disperse the stress and avoid the printing on the machine.
- a buffer portion 16 may be disposed in the bending space of the bending portion 112 , and the orthographic projection of the buffer portion 16 on the first display panel 101 is located on the rigid diaphragm 12 In the orthographic projection on the first display panel 101 ; specifically, the buffer portion 16 may be disposed at a position where the bent portion 112 is close to the first portion 110 , and the orthographic projection of the buffer portion 16 on the first display panel 101 is located at the rigid The central area of the orthographic projection of the diaphragm 12 on the first display panel 101 .
- the design enables the buffer portion 16 to provide a certain buffer force for the bending portion 112 to ensure that the bending portion 112 has a good recovery deformation It can prevent the bending part 112 from forming a dead break during the installation process.
- the display device of the embodiment of the present disclosure is not limited to include the aforementioned first display panel 101 , the first heat dissipation film layer 102 , the first flexible circuit board 11 , the first main circuit board 13 , and the rigid film 12 , buffer portion 16 and other structures, in addition to these structures, the display device can also include a middle frame structure, and the middle frame structure includes at least a first middle frame.
- the first mounting plate 17 and the first side plate 18, the first mounting plate 17 has the opposite first mounting surface 170 and the second mounting surface 171, and the first side plate 18 is arranged on the periphery of the first mounting surface 170, and The first installation groove 19 is surrounded by the first installation surface 170; it should be noted that when the first installation surface 170 is rectangular, the first side plate 18 can be arranged around the four sides of the first installation surface 170, but is not limited to this , can also be set on three sides, or set on opposite sides, etc., depending on the specific situation.
- the first display panel 101 , the first heat dissipation film layer 102 , the first flexible circuit board 11 , and the rigid film 12 mentioned above can be located in the first mounting groove 19 , and the first part 110 is located in the second part 111 away from One side of the first installation surface 170; it should be noted that, as shown in FIG. 4, the first installation surface 170 may be provided with an escape groove 170a corresponding to the bending portion 112, and the first installation surface 170 is provided with a first An assembly groove 170b; the aforementioned first main circuit board 13 can be located in the first assembly groove 170b, and a portion of the first connection terminal 14 extends out of the first assembly groove 170b and is electrically connected to the second portion 111 .
- the middle frame structure may be a folding mechanism.
- it may also include a second middle frame rotatably connected to the first middle frame.
- the second middle frame may be connected to the first middle frame.
- the first middle frame is rotatably connected by the rotating shaft 20, and the second middle frame can at least include a second mounting plate 21, and the second mounting plate 21 has a third mounting surface 210 and a fourth mounting surface 211 opposite to each other, wherein the first middle frame
- the relative rotation with the second middle frame can make the third mounting surface 210 rotate to a position facing the second mounting surface 171 .
- the display device may further include a second display module 22 .
- the second display module 22 may include a second display panel 220 and a second heat dissipation film layer 221 , the second display panel 220 can be located on the side of the second mounting surface 171 away from the first mounting surface 170 and on the side of the third mounting surface 210 away from the fourth mounting surface 211 ; and the second heat dissipation film layer 221 is located on the second
- the mounting surface 171 is located on the side away from the first mounting surface 170 and on the side of the third mounting surface 210 away from the fourth mounting surface 211, and is disposed on the back side of the second display panel 220;
- the orthographic projections on the two display panels 220 are located in or overlap with the second display panel 220 .
- the structure of the second heat dissipation film layer 221 and the aforementioned first heat dissipation film layer 102 may be the same, and details are not repeated here.
- the second display panel 220 may be an OLED display, and the second display module 22 may be a flexible display panel.
- the first middle frame and the second middle frame are rotated relative to each other so that the third mounting surface 210 is rotated to face the second mounting surface 171, the second display module 22 can be bent, that is, the entire display device can be bent inward, that is, the display surface of the second display panel 220 is located inside the bending.
- the display device may further include a second main circuit board 23 and a second flexible circuit board 24 ; wherein the second main circuit board 23 may be disposed on the first mounting board 17 or The second mounting board 21 and the second main circuit board 23 are provided with second connection terminals; one end of the second flexible circuit board 24 is electrically connected to the second connection terminal 25 , and the other end is electrically connected to the second display panel 220 .
- the aforementioned first mounting surface 170 may further be provided with a second mounting groove 170c
- the first mounting plate 17 is further provided with a penetration through the first mounting surface 170 and the second mounting surface 171 through hole (not shown in the figure), this through hole communicates with the second assembly groove 170c; while the second main circuit board 23 and the second connection terminal 25 are located in the second assembly groove 170c, and the second flexible circuit board One end of 24 is electrically connected to the second connection terminal 25 through the through hole.
- the second main circuit board 23 and the first main circuit board 13 can be integrated in a single structure or can be provided independently of each other. It should be understood that the second main circuit board 23 and the first main circuit board 13 are integrated In structure, the first fitting groove 170b and the second fitting groove 170c can communicate with each other.
- the second side plate 26 may be provided around the second mounting surface 171 of the first mounting plate 17 . It should be understood that the second mounting surface 171 is connected to the third mounting surface 171 .
- the adjacent side of the surface 210 may not be provided with the second side plate 26, and the other three sides may be provided, but not limited to this;
- the third side plate 27 may be provided around the third mounting surface 210 of the second mounting plate 21, it should be understood Yes, the side of the third mounting surface 210 adjacent to the second mounting surface 171 may not be provided with the third side plate 27, and the other three sides may be provided, but not limited to this; wherein, the second side plate 26, the second mounting surface
- the surface 171 , the third mounting surface 210 and the third side plate 27 may enclose the second mounting slot 28 , and the aforementioned second display module 22 and the second flexible circuit board 24 may be located in the second mounting slot 28 .
- the display device of the embodiment of the present disclosure may further include a first cover plate 29 and a second cover plate 30 ; wherein, the first cover plate 29 may be disposed on the display side of the first display panel 101 , and this The edge of the first cover plate 29 extends beyond the edge of the first display panel 101, and the portion of the first cover plate 29 beyond the first display panel 101 rests on the end surface of the first side plate 18 away from the first mounting surface 170; for example , the end surface of the first side plate 18 away from the first installation surface 170 may be provided with a positioning groove 180 , as shown in FIG. , as shown in Figure 5, but not limited thereto.
- the second cover plate 30 can be disposed on the side of the second display panel 220 away from the second mounting surface 171 and the third mounting surface 210 (ie, the display side of the second display panel 220 ), the edge of the second cover plate 30 It can also extend beyond the edge of the second display panel 220.
- the second cover plate 30 can be embedded in the second installation groove 28, and the surface of the second cover plate 30 away from the second display panel 220 can be connected to the second side.
- the end surface of the plate 26 away from the first mounting plate 17 is flush with the end surface of the third side plate 27 away from the second mounting plate 21 , but not limited thereto.
- the second cover 30 can be a flexible cover, such as a PI cover, that is to say, the second cover 30 can be bent.
- the second cover plate 30 can be bent together with the second display module 22; and the first cover plate 29 can be A rigid cover plate, such as a glass cover plate, etc., that is, the first cover plate 29 cannot be bent, but not limited thereto, the first cover plate 29 can also be a flexible cover plate, depending on the specific situation.
- the fourth side plate 33 can also be arranged around the fourth installation surface 211 . It should be noted that when the fourth installation surface 211 is rectangular, the fourth side plate 33 can be arranged around the fourth side plate 33 .
- the four sides of the installation surface 211 can also be arranged on three sides, or arranged on two opposite sides, etc., depending on the specific situation.
- the second middle frame may further include a third mounting plate 31 opposite to the second mounting plate 21 , and the fourth side plate 33 may be surrounded by the third mounting plate 31 and the fourth mounting surface 211 of the second mounting plate 21 .
- the third installation slot 32, and the display device may further include a battery (not shown in the figure) and other structures, the battery can be placed in the third installation slot 32, but not limited to this, the third installation slot 32 can also be provided other structures.
- the second middle frame in the embodiment of the present disclosure may also not include the third mounting plate 31, depending on the specific situation.
- first middle frame in the embodiment of the present disclosure may have an integrated structure, and the entire second middle frame may also be an integrated structure.
- the first display panel 101 of the embodiment of the present disclosure may be a sub display panel of the entire display device, and the second display panel 220 may be a main display panel of the entire display device.
- the display device When the display device is in the unfolded state, it can be The second display panel 220 is used for display, and when the display device is in a folded state, the first display panel 101 can be used for display.
- the specific type of the display device is not particularly limited, and any type of display device commonly used in the art can be used, such as a mobile phone, etc., and those skilled in the art can make corresponding adjustments according to the specific use of the display device. selection, which will not be repeated here.
- the display device also includes other necessary components and components, taking a mobile phone as an example, such as a casing, a power cord, etc. The usage requirements are supplemented accordingly, which will not be repeated here.
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Abstract
一种显示装置，包括：第一显示面板（101）、第一柔性电路板（11）及刚性膜片（12）；第一柔性电路板（11）设置在第一显示面板（101）的背侧，第一柔性电路板（11）包括第一部（110）、第二部（111）及连接第一部（110）和第二部（111）的弯折部（112），第一部（110）与第一显示面板（101）电连接，第二部（111）位于第一部（110）远离第一显示面板（101）的一侧；刚性膜片（12）位于第一显示面板（101）的背侧与弯折部（112）之间，刚性膜片（12）支撑弯折部（112），刚性膜片（12）的刚度大于第一显示面板（101）的刚度，刚性膜片（12）用于分散弯折部（112）产生的回弹力。能够改善装机模印问题，提高显示效果。
Description
交叉引用
本公开要求于2020年10月30日提交的申请号为202022471608.6名称为“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。
本公开涉及显示技术领域，具体而言，涉及一种显示装置。
目前，折叠显示产品(例如：折叠手机)正在迅速崛起，对于内折显示产品通常都会配一个副显示面板作为其中一种使用场景；由于折叠显示产品的结构设计限制，因此，在副显示面板装机时，柔性电路板(Flexible Printed Circuit，简称：FPC)需要弯折过来装机，但FPC的弯折部会发生回弹现象并挤压副显示面板，这样使得副显示屏容易出现积压模印，影响显示效果。
需要说明的是，在上述背景技术部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
本公开的目的在于提供一种显示装置，能够改善装机模印问题，提高显示效果。
本公开提供了一种显示装置，其包括：
第一显示面板；
第一柔性电路板，设置在所述第一显示面板的背侧，所述第一柔性电路板包括第一部、第二部及连接所述第一部和所述第二部的弯折部，所述第一部与所述第一显示面板电连接，所述第二部位于所述第一部远离所述第一显示面板的一侧；
刚性膜片，位于所述第一显示面板的背侧与所述弯折部之间，所述 刚性膜片支撑所述弯折部，所述刚性膜片的刚度大于所述第一显示面板的刚度，所述刚性膜片用于分散所述弯折部产生的回弹力。
在本公开的一种示例性实施例中，
所述弯折部对应的弯折轴线在第一方向上延伸，且所述弯折部在所述第一显示面板上的正投影具有在第二方向上相对的第一边界和第二边界，所述第二方向与所述第一方向相垂直；
所述刚性膜片在所述第一显示面板上的正投影具有在所述第二方向上相对的第三边界和第四边界，所述第三边界位于所述第一边界远离所述第二边界的一侧，所述第四边界位于所述第二边界远离所述第一边界的一侧。
在本公开的一种示例性实施例中，所述第三边界与所述第一边界在所述第二方向上的间距等于所述第四边界与所述第二边界在所述第二方向上的间距。
在本公开的一种示例性实施例中，所述第三边界与所述第一边界在所述第二方向上的间距大于或等于1cm；所述第四边界与所述第二边界在所述第二方向上的间距大于或等于1cm。
在本公开的一种示例性实施例中，所述弯折部的弯折空间内设置有缓冲部，所述缓冲部在所述第一显示面板上的正投影位于所述刚性膜片在所述第一显示面板上的正投影内。
在本公开的一种示例性实施例中，所述缓冲部设置在所述弯折部靠近所述第一部的位置上，且所述缓冲部在所述第一显示面板上的正投影位于所述刚性膜片在所述第一显示面板上的正投影的中心区域。
在本公开的一种示例性实施例中，所述刚性膜片的厚度为0.1mm至0.5mm。
在本公开的一种示例性实施例中，所述刚性膜片的材料为聚酰亚胺或不锈钢。
在本公开的一种示例性实施例中，所述显示装置还包括第一散热膜层，设置在所述第一显示面板的背侧，且位于所述刚性膜片靠近所述第一显示面板的一侧；
其中，所述刚性膜片的刚度大于所述第一散热膜层的刚度。
在本公开的一种示例性实施例中，所述第一散热膜层在所述第一显示面板上的正投影位于所述第一显示面板内或与之重合；
所述刚性膜片在所述第一显示面板上的正投影位于所述第一散热膜层在所述第一显示面板上的正投影内。
在本公开的一种示例性实施例中，还包括：
第一中框，包括第一安装板和第一侧板，所述第一安装板具有相对的第一安装面和第二安装面，所述第一侧板设置在所述第一安装面的周边，并与所述第一安装面围成第一安装槽；其中，所述第一显示面板、所述第一柔性电路板、所述刚性膜片位于所述第一安装槽内，且所述第一部位于所述第二部远离所述第一安装面的一侧；
第一主电路板，设置在所述第一安装面上，所述第一主电路板上设置有第一连接端子，所述第一连接端子与所述第二部电连接；
第一盖板，设置在所述第一显示面板的显示侧，所述第一盖板的边缘超出所述第一显示面板的边缘，且所述第一盖板超出所述第一显示面板的部分搭在所述第一侧板远离所述第一安装面上的端面。
在本公开的一种示例性实施例中，所述第一安装面上设置有与所述弯折部对应的避让槽，且所述第一安装面上设置有第一装配槽；其中，所述第一主电路板位于所述第一装配槽内，所述第一连接端子的部分伸出所述第一装配槽并与所述第二部电连接。
在本公开的一种示例性实施例中，还包括：
第二中框，与所述第一中框转动连接，所述第二中框至少包括第二安装板，所述第二安装板具有相对的第三安装面和第四安装面；
第二显示面板，位于所述第二安装面远离所述第一安装面的一侧且位于所述第三安装面远离所述第四安装面的一侧；
其中，所述第一中框与所述第二中框相对转动能够使得所述第三安装面转动至面向所述第二安装面的位置，同时，所述第二显示面板能够发生弯折。
在本公开的一种示例性实施例中，还包括：
第二主电路板，设置在所述第一安装板或所述第二安装板上，所述第二主电路板上设置有第二连接端子；
第二柔性电路板，所述第二柔性电路板的一端与所述第二连接端子电连接，另一端与所述第二显示面板电连接；
第二盖板，设置在所述第二显示面板远离所述第二安装面和所述第三安装面的一侧，所述第二盖板能够发生弯折。
在本公开的一种示例性实施例中，
所述第一安装面上还设置第二装配槽，且所述第一安装板上还设置有贯穿所述第一安装面和所述第二安装面的通孔，所述通孔与所述第二装配槽连通；
所述第二主电路板和所述第二连接端子位于所述第二装配槽内，所述第二柔性电路板的一端穿过所述通孔与所述第二连接端子电连接；
其中，所述第二主电路板和所述第一主电路板为一体式结构或相互独立设置。
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，并不能限制本发明。
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至图5分别示出了本公开不同实施例所述的显示装置的结构示意图。
为使本公开的目的、技术方案和优点更加清楚明白，下文中将结合附图对本公开的实施例进行详细说明。注意，实施方式可以以多个不同形式来实施。所属技术领域的普通技术人员可以很容易地理解一个事实，就是方式和内容可以在不脱离本公开的宗旨及其范围的条件下被变换为 各种各样的形式。因此，本公开不应该被解释为仅限定在下面的实施方式所记载的内容中。在不冲突的情况下，本公开中的实施例及实施例中的特征可以相互任意组合。
在附图中，有时为了明确起见，夸大表示了各构成要素的大小、层的厚度或区域。因此，本公开的一个方式并不一定限定于该尺寸，附图中各部件的形状和大小不反映真实比例。此外，附图示意性地示出了理想的例子，本公开的一个方式不局限于附图所示的形状或数值等。
需要说明的是，本文中所述的“在……上”可以表示一层直接形成或设置在另一层上，也可以表示一层间接形成或设置在另一层上，即两层之间还存在其它的层。
用语“一”、“该”、“此”用以表示存在一个或多个要素/组成部/等；用语“包括”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/等之外还可存在另外的要素/组成部/等。
本说明书中的“第一”、“第二”等序数词是为了避免构成要素的混同而设置，而不是为了在数量方面上进行限定的。
在本说明书中，除非另有明确的规定和限定，术语“连接”应做广义理解。例如，可以是固定连接，或可拆卸连接，或一体地连接；可以是机械连接，或电连接；可以是直接相连，或通过中间件间接相连，或两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开中的具体含义。
本公开实施例提供了一种显示装置，此显示装置可为折叠产品，但不限于此，也可为非折叠产品；具体地，如图1所示，显示装置可包括第一显示模组10、第一柔性电路板11及刚性膜片12，其中：
第一显示模组10可为柔性显示模组，可选地，此第一显示模组10可包括第一显示面板101和第一散热膜层102，其中，第一显示面板101可为OLED(Organic Light-Emitting Diode)显示；需要说明的是，第一显示面板101可具有在其厚度方向Z上相对的显示侧和背侧；而第一散热膜层102可设置在第一显示面板101的背侧；此第一散热膜层102在第一显示面板101上的正投影位于第一显示面板101内或与之重合。
在本公开的实施例中，通过设置第一散热膜层102可将第一显示面 板101产生的热量快速散发，以避免第一显示面板101由于温度过高而发生损伤的情况。
举例而言，第一散热膜层102可为多层结构，此第一散热膜层102可包括依次设置的EMBO(压花硅胶缓冲材料)层、Foam(泡沫材料)层、PI(聚酰亚胺薄膜)层、Cu(铜)箔层及吸波材料层；但不限于此，第一散热膜层102也可由其他膜层构成，只要能够保证第一散热膜层102具有良好的散热性能和可弯折性能即可。此外，第一散热膜层102也可为单层结构，视具体情况而定。
第一柔性电路板11可设置在第一显示面板101的背侧，具体可设置在第一散热膜层102远离第一显示面板101的一侧；如图1所示，此第一柔性电路板11可包括第一部110、第二部111及连接第一部110和第二部111的弯折部112，具体地，弯折部112在第一显示面板101上的正投影可位于第一显示面板101的显示区域；第一部110可与第一显示面板101电连接；第二部111可位于第一部110远离第一显示面板101的一侧，应当理解的是，如图2所示，本公开实施例的显示装置还可包括第一主电路板13，此第二部111可与第一主电路板13电连接，需要说明的是，此第一主电路板13可位于第二部111远离第一部110的一侧。
如图1和图2所示，刚性膜片12可位于第一显示面板101的背侧与弯折部112之间；具体地，刚性膜片12可设置在第一散热膜层102远离第一显示面板101的一侧，此刚性膜片12在第一显示面板101上的正投影可位于第一散热膜层102在第一显示面板101上的正投影内；且此刚性膜片12可支撑第一柔性电路板11的弯折部112，应当理解的是，刚性膜片12的刚度可大于第一散热膜层102和第一显示面板101的刚度，也就是说，此刚性膜片12相比于第一显示面板101和第一散热膜层102受力不易发生变形。举例而言，此刚性膜片12的材料可为聚酰亚胺(PI)或不锈钢(SUS)，应当理解的是，用于制作刚性膜片12的PI材料应为硬质PI材料。
此外，刚性膜片12的厚度可为0.1mm至0.5mm，比如：0.1mm、0.2mm、0.3mm、0.4mm、0.5mm等等，通过将刚性膜片12的厚度设计为大于或等于0.1mm，以保证刚性膜片12具有足够的刚度，而将刚性 膜片12的厚度设计为小于或等于0.5mm，可降低产品整体厚度。
在本公开实施例中，由于在第一柔性电路板11的弯折部112与第一显示面板101的背侧之间设置有刚性膜片12，且刚性膜片12受力不易发生变形，这样在装机过程中，此刚性膜片12可对弯折部112产生的回弹力进行分散释放，因此，可避免第一显示面板101的显示区域中与弯折部112对应的位置产生明显模印的情况，提高了显示效果。
需要说明的是，本公开实施例的第一柔性电路板11的弯折部112不限于设置在第一显示面板101的显示区域，也可设置在非显示区域。
其中，前述提到的各结构的装机过程可为：先将第一柔性电路板11的第二部111与第一主电路板13电连接，然后再将第一柔性电路板11进行弯折，以形成前述提到的弯折部112并使其第一部110位于第二部111远离第一主电路板13的一侧。需要说明的，第一部110可在第二部111与第一主电路板13电连接之前先与第一显示面板101电连接，或第一部110可在其弯折到第二部111远离第一主电路板13的一侧时再与第一显示面板101电连接。
举例而言，第一显示面板101的部分可弯折到背侧(图中未示出)并与第一柔性电路板11的第一部110绑定，以实现第一显示面板101与第一部110的电连接；如图2所示，而第一主电路板13可设置有第一连接端子14，第一柔性电路板11的第二部111可设置有能够与第一连接端子14扣装或插装的配合端子15，即：通过配合端子15与第一连接端子14扣装或插装以实现第一主电路板13与第二部111的电连接。
在本公开的实施例中，此第一柔性电路板11的弯折部112对应的弯折轴线可在第一方向(图中未示出)上延伸，且弯折部112在第一显示面板101上的正投影具有在第二方向X上相对的第一边界A和第二边界B，需要说明的是，此第二边界B为弯折部112中靠近第一部110和第二部111的一侧，第一边界A为弯折部112中远离第一部110和第二部111的一侧，如图1和图2所示；而刚性膜片12在第一显示面板101上的正投影具有在第二方向X上相对的第三边界C和第四边界D，如图1和图2所示，此第三边界C位于第一边界A远离第二边界B的一侧，第四边界D位于第二边界B远离第一边界A的一侧。
本实施例中，通过使弯折部112的第一边界A和第二边界B位于刚性膜片12的第三边界C和第四边界D的内侧，可使刚性膜片12更好地对弯折部112产生的回弹力进行分散，具体地，相比于弯折部112的第一边界A和第二边界B位于刚性膜片12的第三边界C和第四边界D的外侧的方案，可避免弯折部112产生的回弹力集中在刚性膜片12的第三边界C和第四边界D，从而可避免第一显示面板101中与刚性膜片12的第三边界C和第四边界D对应的位置产生模印的情况，以提高显示效果(注意避免这种反义的表述)。
需要说明的是，本公开实施例提到的第二方向X与第一方向(图中未示出)相垂直；且第一方向、第二方向X均与第一显示面板101的厚度方向Z(即：显示装置的厚度方向Z)相垂直。
可选地，刚性膜片12的第三边界C与弯折部112的第一边界A在第二方向X上的间距可等于刚性膜片12的第四边界D与弯折部112的第二边界B在第二方向X上的间距，这样可保证刚性膜片12整体受力均匀性，以更好地起到分散应力的作用；但不限于此，刚性膜片12的第三边界C与弯折部112的第一边界A在第二方向X上的间距与刚性膜片12的第四边界D与弯折部112的第二边界B在第二方向X上的间距也可不相等。
在本公开实施例中，刚性膜片12的第三边界C与弯折部112的第一边界A在第二方向X上的间距可大于或等于1cm；刚性膜片12的第四边界D与弯折部112的第二边界B在第二方向X上的间距大于或等于1cm，这样设计使得刚性膜片12能够更好地起到分散应力的作用。
需要说明的是，本公开实施例的刚性膜片12的面积可根据实际情况而定，只要能够更好地起到分散应力的作用以避免装机模印即可。
在本公开的一些实施例中，如图3所示，弯折部112的弯折空间内可设置有缓冲部16，且缓冲部16在第一显示面板101上的正投影位于刚性膜片12在第一显示面板101上的正投影内；具体地，缓冲部16可设置在弯折部112靠近第一部110的位置上，且缓冲部16在第一显示面板101上的正投影位于刚性膜片12在第一显示面板101上的正投影的中心区域。
在本实施例中，通过在弯折部112的弯折空间内设置缓冲部16，这样设计使得缓冲部16能够为弯折部112提供一定缓冲力，以保证弯折部112具有良好的恢复形变能力，避免在装机过程中弯折部112形成死折的情况。
应当理解的是，本公开实施例的显示装置不限于包括前述提到的第一显示面板101、第一散热膜层102、第一柔性电路板11、第一主电路板13、刚性膜片12、缓冲部16等结构，此显示装置除了这些结构之外，还可包括中框结构，此中框结构至少包括第一中框，详细说明，如图4所示，此第一中框可包括第一安装板17和第一侧板18，此第一安装板17具有相对的第一安装面170和第二安装面171，而第一侧板18设置在第一安装面170的周边，并与第一安装面170围成第一安装槽19；需要说明的是，在第一安装面170为矩形时，第一侧板18可环绕设置在第一安装面170的四边，但不限于此，也可设置在三边，或设置在相对两边等等，视具体情况而定。
其中，前述提到的第一显示面板101、第一散热膜层102、第一柔性电路板11、刚性膜片12可位于第一安装槽19内，且第一部110位于第二部111远离第一安装面170的一侧；需要说明的是，如图4所示，第一安装面170上可设置有与弯折部112对应的避让槽170a，且第一安装面170上设置有第一装配槽170b；前述提到的第一主电路板13可位于第一装配槽170b内，第一连接端子14的部分伸出第一装配槽170b并与第二部111电连接。
在本公开的实施例中，中框结构可为折叠机构，除了第一中框，还可包括与第一中框转动连接的第二中框，如图5所示，第二中框可与第一中框通过转轴20转动连接，此第二中框至少可包括第二安装板21，第二安装板21具有相对的第三安装面210和第四安装面211，其中，第一中框与第二中框相对转动能够使得第三安装面210转动至面向第二安装面171的位置。
可选地，如图5所示，本公开实施例的显示装置还可包括第二显示模组22，具体地，第二显示模组22可包括第二显示面板220和第二散热膜层221，此第二显示面板220可位于第二安装面171远离第一安装 面170的一侧且位于第三安装面210远离第四安装面211的一侧；而第二散热膜层221位于第二安装面171远离第一安装面170的一侧且位于第三安装面210远离第四安装面211的一侧，并设置在第二显示面板220的背侧；此第二散热膜层221在第二显示面板220上的正投影位于第二显示面板220内或与之重合。
此外，第二散热膜层221与前述提到的第一散热膜层102的结构可相同，在此不再赘述。
其中，第二显示面板220可为OLED显示，第二显示模组22可为柔性显示面板，在第一中框与第二中框相对转动以使得第三安装面210转动至面向第二安装面171的位置的同时，第二显示模组22能够发生弯折，也就是说，整个显示装置能够发生内折，即：第二显示面板220的显示面位于弯折内侧。
在本公开的实施例中，如图5所示，显示装置还可包括第二主电路板23及第二柔性电路板24；其中，第二主电路板23可设置在第一安装板17或第二安装板21上，第二主电路板23上设置有第二连接端子；第二柔性电路板24的一端与第二连接端子25电连接，另一端与第二显示面板220电连接。
举例而言，如图5所示，前述提到的第一安装面170上还可设置第二装配槽170c，且第一安装板17上还设置有贯穿第一安装面170和第二安装面171的通孔(图中未标示出)，此通孔与第二装配槽170c连通；而第二主电路板23和第二连接端子25位于第二装配槽170c内，且第二柔性电路板24的一端穿过通孔与第二连接端子25电连接。
需要说明的是，第二主电路板23和第一主电路板13可为一体式结构或相互独立设置，应当理解的是，在第二主电路板23与第一主电路板13为一体式结构时，第一装配槽170b和第二装配槽170c可相互连通。
在本公开的实施例中，如图5所示，第一安装板17中第二安装面171的周边可设置第二侧板26，应当理解的是，第二安装面171中与第三安装面210相邻的一边可不设置第二侧板26，其余三边均可设置，但不限于此；第二安装板21中第三安装面210的周边可设置第三侧板27， 应当理解的是，第三安装面210中与第二安装面171相邻的一边可不设置第三侧板27，其余三边均可设置，但不限于此；其中，此第二侧板26、第二安装面171、第三安装面210及第三侧板27可围成第二安装槽28，前述提到的第二显示模组22、第二柔性电路板24可位于第二安装槽28内。
此外，如图5所示，本公开实施例的显示装置还可包括第一盖板29和第二盖板30；其中，第一盖板29可设置在第一显示面板101的显示侧，此第一盖板29的边缘超出第一显示面板101的边缘，且第一盖板29超出第一显示面板101的部分搭在第一侧板18远离第一安装面170上的端面；举例而言，此第一侧板18远离第一安装面170的端面上可设置有定位凹槽180，如图4所示，第一盖板29超出第一显示面板101的部分搭在此定位凹槽180内，如图5所示，但不限于此。而第二盖板30可设置在第二显示面板220远离第二安装面171和第三安装面210的一侧(即：第二显示面板220的显示侧)，此第二盖板30的边缘也可超出第二显示面板220的边缘，举例而言，此第二盖板30可嵌在第二安装槽28内，此第二盖板30远离第二显示面板220的表面可与第二侧板26远离第一安装板17的端面以及与第三侧板27远离第二安装板21的端面相平齐，但不限于此。
需要说明的是，此第二盖板30可为柔性盖板，例如：PI盖板等，也就是说，此第二盖板30能够弯折，具体地，在第一中框与第二中框相对转动以使得第三安装面210转动至面向第二安装面171的位置的同时，第二盖板30能够随着第二显示模组22一起发生弯折；而第一盖板29可为刚性盖板，例如：玻璃盖板等，即：第一盖板29不能发生弯折，但不限于此，第一盖板29也可为柔性盖板，视具体情况而定。
其中，如图5所示，第四安装面211的周边也可设置第四侧板33，需要说明的是，在第四安装面211为矩形时，第四侧板33可环绕设置在第四安装面211的四边，但不限于此，也可设置在三边，或设置在相对两边等等，视具体情况而定。
此外，第二中框还可包括与第二安装板21相对的第三安装板31，此第四侧板33可与第三安装板31、第二安装板21的第四安装面211围 成第三安装槽32，而显示装置还可包括电池(图中未示出)等结构，此电池可放置在第三安装槽32内，但不限于此，此第三安装槽32内还可设置其他结构。需要说明的是，本公开实施例的第二中框也可不包括第三安装板31，视具体情况而定。
需要说明的是，本公开实施例的第一中框整体可为一体式结构，第二中框整体也可为一体式结构。
基于前述可知，本公开实施例的第一显示面板101可为整个显示装置的副显示面板，而第二显示面板220可为整个显示装置的主显示面板，在此显示装置处于展开状态时，可使用第二显示面板220进行显示，而在显示装置处于折叠状态时，可使用第一显示面板101进行显示。
在本公开的实施例中，显示装置的具体类型不受特别的限制，本领域常用的显示装置类型均可，具体例如手机等等，本领域技术人员可根据该显示装置的具体用途进行相应地选择，在此不再赘述。
需要说明的是，该显示装置除了前述提到的结构以外，还包括其他必要的部件和组成，以手机为例，具体例如外壳、电源线等等，本领域技术人员可根据该显示装置的具体使用要求进行相应地补充，在此不再赘述。
本领域技术人员在考虑说明书及实践这里公开的内容后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由所附的权利要求指出。
Claims (15)
- 一种显示装置，其中，包括：第一显示面板；第一柔性电路板，设置在所述第一显示面板的背侧，所述第一柔性电路板包括第一部、第二部及连接所述第一部和所述第二部的弯折部，所述第一部与所述第一显示面板电连接，所述第二部位于所述第一部远离所述第一显示面板的一侧；刚性膜片，位于所述第一显示面板的背侧与所述弯折部之间，所述刚性膜片支撑所述弯折部，所述刚性膜片的刚度大于所述第一显示面板的刚度，所述刚性膜片用于分散所述弯折部产生的回弹力。
- 根据权利要求1所述的显示装置，其中，所述弯折部对应的弯折轴线在第一方向上延伸，且所述弯折部在所述第一显示面板上的正投影具有在第二方向上相对的第一边界和第二边界，所述第二方向与所述第一方向相垂直；所述刚性膜片在所述第一显示面板上的正投影具有在所述第二方向上相对的第三边界和第四边界，所述第三边界位于所述第一边界远离所述第二边界的一侧，所述第四边界位于所述第二边界远离所述第一边界的一侧。
- 根据权利要求2所述的显示装置，其中，所述第三边界与所述第一边界在所述第二方向上的间距等于所述第四边界与所述第二边界在所述第二方向上的间距。
- 根据权利要求2所述的显示装置，其中，所述第三边界与所述第一边界在所述第二方向上的间距大于或等于1cm；所述第四边界与所述第二边界在所述第二方向上的间距大于或等于1cm。
- 根据权利要求1所述的显示装置，其中，所述弯折部的弯折空间内设置有缓冲部，所述缓冲部在所述第一显示面板上的正投影位于所述刚性膜片在所述第一显示面板上的正投影内。
- 根据权利要求5所述的显示装置，其中，所述缓冲部设置在所述弯折部靠近所述第一部的位置上，且所述缓冲部在所述第一显示面板上的正投影位于所述刚性膜片在所述第一显示面板上的正投影的中心区域。
- 根据权利要求1所述的显示装置，其中，所述刚性膜片的厚度为0.1mm至0.5mm。
- 根据权利要求1所述的显示装置，其中，所述刚性膜片的材料为聚酰亚胺或不锈钢。
- 根据权利要求1所述的显示装置，其中，所述显示装置还包括第一散热膜层，设置在所述第一显示面板的背侧，且位于所述刚性膜片靠近所述第一显示面板的一侧；其中，所述刚性膜片的刚度大于所述第一散热膜层的刚度。
- 根据权利要求9所述的显示装置，其中，所述第一散热膜层在所述第一显示面板上的正投影位于所述第一显示面板内或与之重合；所述刚性膜片在所述第一显示面板上的正投影位于所述第一散热膜层在所述第一显示面板上的正投影内。
- 根据权利要求1至10中任一项所述的显示装置，其中，还包括：第一中框，包括第一安装板和第一侧板，所述第一安装板具有相对的第一安装面和第二安装面，所述第一侧板设置在所述第一安装面的周边，并与所述第一安装面围成第一安装槽；其中，所述第一显示面板、所述第一柔性电路板、所述刚性膜片位于所述第一安装槽内，且所述第一部位于所述第二部远离所述第一安装面的一侧；第一主电路板，设置在所述第一安装面上，所述第一主电路板上设置有第一连接端子，所述第一连接端子与所述第二部电连接；第一盖板，设置在所述第一显示面板的显示侧，所述第一盖板的边缘超出所述第一显示面板的边缘，且所述第一盖板超出所述第一显示面板的部分搭在所述第一侧板远离所述第一安装面上的端面。
- 根据权利要求11所述的显示装置，其中，所述第一安装面上设置有与所述弯折部对应的避让槽，且所述第一安装面上设置有第一装配槽；其中，所述第一主电路板位于所述第一装配槽内，所述第一连接端子的部分伸出所述第一装配槽并与所述第二部电连接。
- 根据权利要求12所述的显示装置，其中，还包括：第二中框，与所述第一中框转动连接，所述第二中框至少包括第二安装板，所述第二安装板具有相对的第三安装面和第四安装面；第二显示面板，位于所述第二安装面远离所述第一安装面的一侧且位于所述第三安装面远离所述第四安装面的一侧；其中，所述第一中框与所述第二中框相对转动能够使得所述第三安装面转动至面向所述第二安装面的位置，同时，所述第二显示面板能够发生弯折。
- 根据权利要求13所述的显示装置，其中，还包括：第二主电路板，设置在所述第一安装板或所述第二安装板上，所述第二主电路板上设置有第二连接端子；第二柔性电路板，所述第二柔性电路板的一端与所述第二连接端子电连接，另一端与所述第二显示面板电连接；第二盖板，设置在所述第二显示面板远离所述第二安装面和所述第三安装面的一侧，所述第二盖板能够发生弯折。
- 根据权利要求14所述的显示装置，其中，所述第一安装面上还设置第二装配槽，且所述第一安装板上还设置有贯穿所述第一安装面和所述第二安装面的通孔，所述通孔与所述第二装配槽连通；所述第二主电路板和所述第二连接端子位于所述第二装配槽内，所述第二柔性电路板的一端穿过所述通孔与所述第二连接端子电连接；其中，所述第二主电路板和所述第一主电路板为一体式结构或相互独立设置。
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| CN213150201U (zh) * | 2020-10-30 | 2021-05-07 | 京东方科技集团股份有限公司 | 显示装置 |
-
2020
- 2020-10-30 CN CN202022471608.6U patent/CN213150201U/zh active Active
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2021
- 2021-09-10 US US17/912,916 patent/US20230080404A1/en active Pending
- 2021-09-10 WO PCT/CN2021/117606 patent/WO2022089038A1/zh active Application Filing
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| CN213150200U (zh) * | 2020-10-30 | 2021-05-07 | 京东方科技集团股份有限公司 | 盖板及可折叠显示装置 |
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| EP4286978A1 (en) * | 2022-05-31 | 2023-12-06 | Beijing Xiaomi Mobile Software Co., Ltd. | Terminal device |
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| US20230080404A1 (en) | 2023-03-16 |
| CN213150201U (zh) | 2021-05-07 |
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