CN114067683A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN114067683A CN114067683A CN202111210495.7A CN202111210495A CN114067683A CN 114067683 A CN114067683 A CN 114067683A CN 202111210495 A CN202111210495 A CN 202111210495A CN 114067683 A CN114067683 A CN 114067683A
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- printed circuit
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- 239000006185 dispersion Substances 0.000 claims abstract description 78
- 239000010410 layer Substances 0.000 claims description 154
- 239000000463 material Substances 0.000 claims description 21
- 239000011241 protective layer Substances 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 239000003292 glue Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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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
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2380/00—Specific applications
- G09G2380/02—Flexible displays
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- Engineering & Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application relates to the technical field of display panels, in particular to a display panel and a display device, wherein the display panel comprises a flexible screen body, a touch layer, a first flexible printed circuit board, a second flexible printed circuit board, a connecting piece and a pressure dispersion layer, wherein the touch layer is arranged on one side of a light emergent surface of the flexible screen body, the first flexible printed circuit board is bound with the flexible screen body, and one end of the second flexible printed circuit board is bound with the touch layer; the connecting piece is positioned on one side of the backlight surface of the flexible screen body and is used for electrically connecting the first flexible printed circuit board and the second flexible printed circuit board; the pressure dispersion layer is positioned in a pressure conduction path between the connecting piece and the flexible screen body and used for reducing the pressure of the connecting piece on the flexible screen body. The display panel can improve the condition of the top print generated by the flexible screen body near the position of the connecting piece, and improve the display effect of the display panel.
Description
Technical Field
The present application relates to the field of display panel technology, and in particular, to a display panel and a display device.
Background
The flexible display panel has the advantages of small size, light weight, flexibility and portability, and meanwhile, the power consumption of the flexible display panel is lower than that of a traditional hard screen display panel, so that the cruising ability of equipment is improved, and the flexible display panel is more and more widely applied to various fields. However, due to the light, thin and bendable characteristics of the screen, when the flexible screen is assembled inside a product, the hardware attached to the flexible screen body easily enables the flexible screen to generate top printing, and the display effect is affected.
Disclosure of Invention
In view of the above, the present disclosure provides a display panel and a display device to improve the phenomenon of top printing generated on a flexible screen, so as to improve the display effect.
In order to solve the technical problem, the application adopts a technical scheme that: a display panel comprises a flexible screen body, a touch layer, a first flexible printed circuit board, a second flexible printed circuit board, a connecting piece and a pressure dispersion layer, wherein the touch layer is arranged on one side of a light emitting surface of the flexible screen body, the first flexible printed circuit board is bound with the flexible screen body, and one end of the second flexible printed circuit board is bound with the touch layer; the connecting piece is positioned on one side of the backlight surface of the flexible screen body and is used for electrically connecting the first flexible printed circuit board and the second flexible printed circuit board; the pressure dispersion layer is positioned in a pressure conduction path between the connecting piece and the flexible screen body and used for reducing the pressure of the connecting piece on the flexible screen body.
The pressure dispersion layer is arranged on the outer periphery of a contact area between the connecting piece and the first flexible printed circuit board or the second flexible printed circuit board, and the pressure dispersion layer is at least connected with the outer periphery of the connecting piece.
The pressure dispersion layer is arranged around the connecting piece and is connected with the first flexible printed circuit board or the second flexible printed circuit board adjacent to the connecting piece.
Wherein a part of the pressure dispersion layer is positioned between the connector and the first flexible printed circuit board, or a part of the pressure dispersion layer is positioned between the connector and the second flexible printed circuit board.
Wherein, part of the pressure dispersion layer is connected with the first flexible printed circuit board or the second flexible printed circuit board.
The pressure dispersion layer is located between the connecting piece and the flexible screen body, and the area of the pressure dispersion layer is larger than the area of a contact area of the connecting piece and the first flexible printed circuit board or the second flexible printed circuit board.
The first flexible printed circuit board or/and the second flexible printed circuit board is/are positioned between the connecting piece and the flexible screen body; the pressure dispersion layer is arranged in the first flexible printed circuit board or/and the second flexible printed circuit board, and the orthographic projection of the pressure dispersion layer on the flexible screen body at least covers the orthographic projection of the connecting piece on the flexible screen body.
Wherein the first flexible printed circuit board comprises a first base material layer and a first protective layer, and the second flexible printed circuit board comprises a second base material layer and a second protective layer
The pressure dispersion layer is arranged between the first base material layer and the first protection layer, or/and the pressure dispersion layer is arranged on one side, away from the first base material layer, of the first protection layer;
and the pressure dispersion layer is arranged between the second base material layer and the second protective layer, or/and the pressure dispersion layer is arranged on one side, deviating from the second base material layer, of the second protective layer.
Wherein the structure of the pressure dispersion layer comprises a honeycomb-like layered structure.
The first flexible printed circuit board and the second flexible printed circuit board are located at two opposite ends or two adjacent sides of the flexible screen body.
The application also comprises a second technical scheme, wherein the display device comprises a driving circuit board and the display panel, and the display panel comprises a first flexible printed circuit board and a second flexible printed circuit board; the driving circuit board is bound with the first flexible printed circuit board or the second flexible printed circuit board and used for driving the display panel.
The beneficial effect of this application is: different from the display panel in the embodiment of the application in the prior art, the pressure dispersion layer is arranged in the pressure conduction path between the connecting piece and the flexible screen body, so that the pressure of the connecting piece to the flexible screen body is reduced, the stress generated by the flexible screen body is dispersed, the condition of top printing generated by the flexible screen body near the position of the connecting piece is improved, and the display effect of the display panel is further improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a display panel;
FIG. 2 is a schematic view of a state of FIG. 1;
FIG. 3 is a schematic cross-sectional view of a display panel according to a first embodiment of the present application;
FIG. 4 is a state diagram of FIG. 3;
FIG. 5 is a schematic top view of FIG. 3;
FIG. 6 is a schematic cross-sectional view of a display panel according to a second embodiment of the present application;
FIG. 7 is a schematic cross-sectional view illustrating a third embodiment of a display panel according to the present application;
FIG. 8 is a schematic cross-sectional view illustrating a display panel according to a fourth embodiment of the present invention;
FIG. 9 is a schematic plan view of an embodiment of a pressure distribution layer of the present application;
fig. 10a-10d are schematic views showing the structure of the display panel assembly process of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
As shown in fig. 3 and 4, an embodiment of the present application provides a display panel, which includes a flexible screen body 10, a touch layer 20, a first flexible printed circuit board 30, a second flexible printed circuit board 40, a connector 50, and a pressure dispersion layer 60, where the touch layer 20 is disposed on one side of a light exit surface of the flexible screen body 10, the first flexible printed circuit board 30 is bound to the flexible screen body 10, and one end of the second flexible printed circuit board 40 is bound to the touch layer 20; the connecting piece 50 is positioned on the backlight side of the flexible screen body 10, and the connecting piece 50 is used for electrically connecting the first flexible printed circuit board 30 and the second flexible printed circuit board 40; the pressure dispersion layer 60 is located in the pressure conduction path between the connection member 50 and the flexible screen body 10 for reducing the pressure of the connection member 50 on the flexible screen body 10.
As shown in fig. 1, the connection element 50 in the display panel is hardware, and when the first flexible printed circuit board 30 and the second flexible printed circuit board 40 are connected, the connection element 50 is located on a backlight surface of the flexible screen body 10, as shown in fig. 2, the connection element 50 is subjected to a pressure acting force when being perpendicular to the backlight surface of the flexible screen body 10, so that the first flexible printed circuit board 30 and the second flexible printed circuit board 40 are electrically connected, and the pressure causes the flexible screen body 10 to generate a top print near the position of the connection element 50, so that the flexible screen body 10 generates an impression or bends, and the display of the flexible screen body 10 is affected. As shown in fig. 3 and fig. 4, in the display panel according to the embodiment of the present application, the pressure dispersion layer 60 is disposed in the pressure conduction path between the connection member 50 and the flexible screen body 10, so as to reduce the pressure of the connection member 50 to the flexible screen body 10, disperse the stress generated by the flexible screen body 10, and improve the condition of the top print generated by the flexible screen body 10 near the position of the connection member 50, thereby improving the display effect of the display panel.
In the embodiment of the present application, the first flexible printed circuit board 30 and the second flexible printed circuit board 40 are electrically connected by the connector 50, so that the flexible screen body 10 connected to the first flexible printed circuit board 30 is electrically connected to a driving circuit board (not shown) of the display device together with the touch layer 20 connected to the second flexible printed circuit board 40, thereby simplifying a connection circuit.
In the embodiment of the present application, the connecting element 50 is located on a side of the first flexible printed circuit board 30 facing away from the flexible screen body 10, and in other embodiments, the connecting element 50 may also be located on a side of the second flexible printed circuit board 40 facing away from the flexible screen body 10.
In the embodiment of the present application, as shown in fig. 3 and 4, the connector 50 includes a socket 51 and a press-fit cover 52, the socket 51 is electrically connected to one of the first flexible printed circuit board 30 or the second flexible printed circuit board 40, the socket 51 is used for accommodating the other of the first flexible printed circuit board 30 or the second flexible printed circuit board 40, and the socket 51 is electrically connected to the first flexible printed circuit board 30 and the second flexible printed circuit board 40; the press cover 52 is used for pressing the other one of the first flexible printed circuit board 30 or the second flexible printed circuit board 40 to be electrically connected with the socket 51, and making the first flexible printed circuit board 30 and the second flexible printed circuit board 40 contact-connected through the socket 51.
In an embodiment of the present application, as shown in fig. 3, the bottom of the socket 51 is welded to the first flexible printed circuit board 30, and the second flexible printed circuit board 40 is inserted into the socket 51, as shown in fig. 4, by applying a force to the press cover 52, the press cover 52 presses the second flexible printed circuit board 40, so that the second flexible printed circuit board 40 is connected to the socket 51, and the first flexible printed circuit board 30 and the second flexible printed circuit board 40 are electrically connected. In other embodiments, the bottom of the socket 51 may also be soldered to the second flexible printed circuit board 40, the first flexible printed circuit board 30 is inserted into the socket 51, and the pressing cover 52 applies a force to press the first flexible printed circuit board 30 onto the pressing cover 52, so that the first flexible printed circuit board 30 is connected to the socket 51, and the first flexible printed circuit board 30 is electrically connected to the second flexible printed circuit board 40.
In the embodiment of the present application, as shown in fig. 3 to 5, the pressure distribution layer 60 is disposed on the outer peripheral side of the contact area between the connector 50 and the first flexible printed circuit board 30 or the second flexible printed circuit board 40, and the pressure distribution layer 60 is connected to at least the outer peripheral side of the connector 50. In the present embodiment, the pressure distribution layer 60 is directly connected to the outer circumferential side of the connector 50, but in other embodiments, the pressure distribution layer 60 may be indirectly connected to the outer circumferential side of the connector 50. In the embodiment of the present application, the pressure dispersion layer 60 is disposed on the outer peripheral side of the connecting member 50, so that the pressure dispersion layer 60 can increase the contact area between the connecting member 50 and the first flexible printed circuit board 30 or the second flexible printed circuit board 40, and the pressure dispersion layer 60 can disperse the pressure applied by the connecting member 50 to the first flexible printed circuit board 30, thereby further dispersing the pressure applied by the connecting member 50 to the flexible screen body 10, reducing the pressure applied by the connecting member 50 to the flexible screen body 10, improving the condition that the flexible screen body 10 generates the top print, and achieving the purpose of improving the display effect of the display panel. In the embodiment of the present application, the connecting member 50 directly contacts the first flexible printed circuit board 30, that is, the bottom of the socket 51 is welded to the first flexible printed circuit board 30, the pressure distribution layer 60 is disposed on the outer periphery of the contact area between the connecting member 50 and the first flexible printed circuit board 30, and the pressure distribution layer 60 is connected to the outer periphery of the connecting member 50. In other embodiments, the connector 50 is directly contacted with the second flexible printed circuit board 40, that is, the bottom of the socket 51 is soldered to the second flexible printed circuit board 40, the pressure distribution layer 60 may also be disposed on the outer periphery of the contact area between the connector 50 and the second flexible printed circuit board 40, and the pressure distribution layer 60 is connected to the outer periphery of the connector 50.
In the embodiment of the present application, the pressure dispersion layer 60 is disposed around the connection member 50 and connects the first flexible printed circuit board 30 or the second flexible printed circuit board 40 adjacent to the connection member 50. In the embodiment of the present application, the pressure dispersion layer 60 is disposed around the connection 50, so that the pressure dispersion layer 60 can increase the stressed area in the pressure conduction path between the connection member 50 and the flexible screen body 10 to a greater extent, which is beneficial to reducing the pressure of the connection member 50 to the flexible screen body 10. Meanwhile, the pressure dispersion layer 60 is connected with the first flexible printed circuit board 30 or the second flexible printed circuit board 40, so that the pressure dispersion layer 60 is tightly contacted with the first flexible printed circuit board 30 or the second flexible printed circuit board 40, the stability of the pressure dispersion layer 60 acting on the flexible screen body 10 is improved, and the pressure of the connecting piece 50 on the flexible screen body 10 is favorably reduced.
Specifically, in the embodiment of the present invention, the material of the pressure dispersion layer 60 is a solidified liquid colloid, in the embodiment of the present invention, a glue dispensing method is adopted at the periphery of the contact area between the connecting member 50 and the first flexible printed circuit board 30, so that the glue is dispersed at the periphery of the contact area between the connecting member 50 and the first flexible printed circuit board 30, that is, in the embodiment of the present invention, the glue is dispersed at the periphery of the contact area between the socket 51 and the first flexible printed circuit board 30, after the glue is solidified, the glue is connected with the periphery of the bottom of the connecting member 50, the solidified glue forms the pressure dispersion layer 60, which can increase the stress bearing area, and in the process of pressing the cover 52 of the connector, the stress of the flexible screen body 10 is dispersed, thereby reducing the influence of the top print on the flexible screen body 10 after the stress is concentrated. In the embodiment of the present application, the glue is taken as an example, and in other embodiments, the pressure dispersion layer 60 may be formed after liquid colloid made of other materials is cured. In another embodiment, the socket 51 of the connector 50 directly contacts the second flexible printed circuit board 40, a glue dispensing method is used on the periphery of the contact area between the connector 50 and the second flexible printed circuit board 40, so that the glue is dispensed on the periphery of the contact area between the connector 50 and the second flexible printed circuit board 40, that is, the glue is dispensed on the periphery of the contact area between the socket 51 and the second flexible printed circuit board 40, after the glue is cured, the glue is connected with the outer periphery of the bottom of the connector 50, and the cured glue forms the pressure dispensing layer 60.
In another embodiment of the present application, as shown in fig. 6, a portion of the pressure distribution layer 61 is disposed on the outer peripheral side of the connecting member 50 and the first flexible printed circuit board 30, and the portion of the pressure distribution layer 61 is connected to at least the outer peripheral side of the connecting member 50; a portion of the pressure-dispersing layer 62 is located between the connector 50 and the first flexible printed circuit board 30. In the embodiment of the present application, the pressure dispersion layer 60 is simultaneously disposed on the outer peripheral side of the connecting member 50 and the bottom of the connecting member 50, so that the contact area between the connecting member 50 and the first flexible printed circuit board 30 can be increased, when the connecting member 50 is applied with an acting force, the acting force exerted by the connecting member 50 on the first flexible printed circuit board 30 is dispersed by the pressure dispersion layer 60, the acting force generated by the connecting member 50 on the first flexible printed circuit board 30 can be reduced, the acting force exerted by the connecting member 50 on the flexible screen body 10 can be dispersed, and the top print of the flexible screen body 10 can be improved. In still another embodiment, a portion of the pressure dispersion layer 61 is disposed on the outer peripheral side of the connecting member 50 and the second flexible printed circuit board 40, and the portion of the pressure dispersion layer 61 is connected to at least the outer peripheral side of the connecting member 50; a portion of the pressure-dispersing layer 62 is located between the connector 50 and the second flexible printed circuit board 40.
In the embodiment of the present application, a part of the pressure dispersion layer 62 is connected to the first flexible printed circuit board 30. In the embodiment of the present application, the partial pressure dispersion layer 62 is connected to the first flexible printed circuit board 30, so that the pressure dispersion layer 60 is connected to the first flexible printed circuit board 30 and the connection member 50 at the same time, which can improve the contact tightness between the pressure dispersion layer 60 and the first flexible printed circuit board 30, and facilitate the force applied to the connection member 50 to be dispersed along the plane where the pressure dispersion layer 60 is located. In other embodiments, when the socket 51 of the connector 50 is soldered to the second flexible printed circuit board 40, a portion of the pressure dispersion layer 62 may also be connected to the second flexible printed circuit board 40. In the embodiment of the present application, as shown in fig. 6, the connecting member 50 is welded to the first flexible printed circuit board 30, and a welding liquid 70 exists between the socket 51 and the bottom of the first flexible printed circuit board 30; in the embodiment of the present application, a glue dispensing method is still adopted, so that the glue is dispensed on the periphery of the contact area between the connecting member 50 and the first flexible printed circuit board 30 or the second flexible printed circuit board 40, and meanwhile, the glue penetrates between the connecting member 50 and the first flexible printed circuit board 30 or the second flexible printed circuit board 40, and the glue is cured to form the pressure dispensing layer 60.
In an embodiment of the present application, as shown in fig. 7, the pressure distribution layer 60 is located between the connector 50 and the flexible screen body 10, and an area of the pressure distribution layer 60 is larger than an area of a contact region between the connector 50 and the first flexible printed circuit board 30 or the second flexible printed circuit board 40. In the embodiment of the present application, the area of the contact area between the connector 50 and the first flexible printed circuit board 30 or the second flexible printed circuit board 40 is the bottom area of the connector 50, and the area of the pressure dispersion layer 60 is set to be larger than the bottom area of the connector 50, so that the pressure dispersion layer 60 can disperse the acting force applied to the flexible circuit board by the connector 50, increase the contact area between the connector 50 and the flexible circuit board, reduce the stress of the flexible display panel, and improve the top print condition of the flexible display panel.
In the embodiment of the present application, the pressure dispersion layer 60 and the connection member 50 may be directly connected or indirectly connected.
In the embodiment of the present application, as shown in fig. 7 and 8, the first flexible printed circuit board 30 is located between the connector 50 and the flexible screen body 10; the pressure dispersion layer 60 is disposed in the first flexible printed circuit board 30, and a projection of the pressure dispersion layer 60 on the flexible screen body 10 at least covers a projection of the connector 50 on the flexible screen body 10. In other embodiments, the pressure dispersion layer 60 may also be disposed on the first flexible printed circuit board 30 and the second flexible printed circuit board 40, or the second flexible printed circuit board 40 is located between the connector 50 and the flexible screen body 10, and the pressure dispersion layer 60 may also be disposed on the second flexible printed circuit board 40. The pressure dispersion layer 60 is directly disposed in the first flexible printed circuit board 30 or/and the second flexible printed circuit board 40, so that the pressure dispersion layer 60 disposed in the first flexible printed circuit board 30 or/and the second flexible printed circuit board 40 can increase the mechanical strength of the first flexible printed circuit board 30 or/and the second flexible printed circuit board 40 contacting the connector 50, thereby increasing the effect of the first flexible printed circuit board 30 or/and the second flexible printed circuit board 40 dispersing the pressure of the connector 50 acting on the flexible screen body 10, and thus reducing the pressure of the connector 50 acting on the flexible screen body 10. In the present embodiment, the area of the pressure distribution layer 60 located in the first printed circuit board is the same as the area of the first printed circuit board, and the area of the pressure distribution layer 60 located in the second printed circuit board is the same as the area of the second printed circuit board. In another embodiment, the area of the pressure distribution layer 60 may also be smaller than the area of the first flexible printed circuit board 30 or/and the second flexible printed circuit board 40, and only needs to be larger than the area of the bottom of the connecting element 50, and the projection of the connecting element 50 on the first flexible printed circuit board 30 or the second flexible printed circuit board 40 is located in the pressure distribution layer 60, so as to achieve the purpose of reducing the pressure applied by the connecting element 50 and the flexible screen 10.
In the embodiment of the present application, the first flexible printed circuit board 30 includes a first substrate layer 31 and a first protective layer 32, and the second flexible printed circuit board 40 includes a second substrate layer (not shown) and a second protective layer (not shown). In the embodiment of the present application, the first protective layer 32 and the second protective layer are insulating layers and protect the first substrate layer 31 and the second substrate layer. In other embodiments, the first protective layer 32 and the second protective layer may be made of other materials.
In an embodiment of the present application, as shown in fig. 7 and 8, the pressure dispersion layer 60 is disposed between the first base material layer 31 and the first protective layer 32; or/and the pressure dispersion layer 60 is arranged on the side of the first protection layer 32, which is far away from the first base material layer 31; or/and the pressure dispersion layer 60 is arranged between the second base material layer and the second protection layer, or/and the pressure dispersion layer 60 is arranged on the side of the second protection layer, which is far away from the second base material layer. That is, the pressure dispersion layer 60 is provided between the first base material layer 31 and the first protective layer 32, on the side of the first protective layer 32 facing away from the first base material layer 31, between the second base material layer and the second protective layer, and on the side of the second protective layer facing away from the second base material layer. The pressure dispersion layer 60 in the first flexible printed circuit board 30 or/and the second flexible printed circuit board 40 can reduce the pressure of the connecting member 50 on the flexible screen body 10 and improve the top printing of the flexible screen body 10 by arranging the pressure dispersion layer 60 in the first flexible printed circuit board 30 or/and the surface and in the second flexible printed circuit board 40 or/and the surface.
Specifically, in the embodiment of the present application, the pressure dispersion layer 60 is disposed between the first substrate layer 31 and the first protection layer 32, and between the second substrate layer and the second protection layer, the pressure dispersion layer 60 can disperse the pressure brought by the connecting element 50 along the direction parallel to the first flexible printed circuit board 30 and the second flexible printed circuit board 40, so as to achieve better pressure generated by contact between the dispersed connecting element 50 and the first flexible printed circuit board 30 or the second flexible printed circuit board 40, reduce the pressure of the connecting element 50 on the flexible screen body 10, and improve the top print condition of the flexible display panel. In other embodiments, the pressure dispersion layer 60 may also be disposed on the surface of the first flexible printed circuit board 30 and form an integral structure with the first flexible printed circuit board 30; meanwhile, the pressure dispersion layer 60 may also be disposed on the surface of the second flexible printed circuit board 40 and form an integrated structure with the second flexible printed circuit board 40; it is also achieved that the pressure distribution layer 60 reduces the pressure of the connection 50 against the flexible screen 10.
In the embodiment of the present application, as shown in fig. 8 and 9, the structure of the pressure dispersing layer 60 includes a honeycomb-shaped layered structure, the pressure dispersing layer 60 of the honeycomb-shaped layered structure includes a plurality of pore structures 63, and a central axis direction of the pore structures 63 faces the connecting member 50, so that the honeycomb-shaped layered structure can have a better dispersing effect in a plane direction parallel to the first flexible printed circuit board 30 or the second flexible printed circuit board 40, and a contact force area between the connecting member 50 and the flexible screen body 10 is enlarged. In other embodiments, the central axis of the cell structure 63 of the honeycomb-shaped layered structure may be parallel to the first flexible printed circuit board 30 or the second flexible printed circuit board 40, or may be increased to some extent to enlarge the contact force area between the connecting member 50 and the flexible screen body 10.
In the embodiment of the present application, as shown in fig. 10a to 10d, the first flexible printed circuit board 30 and the second flexible printed circuit board 40 are located at opposite ends of the flexible screen body 10. In other embodiments, the first flexible printed circuit board 30 and the second flexible printed circuit board 40 are located on adjacent sides of the flexible screen body 10.
Specifically, in the embodiment of the present application, as shown in fig. 10a, in the assembly process of the display panel, the flexible screen body 10 is bound to the first flexible printed circuit board 30, the flexible screen body 10 and the first flexible printed circuit board 30 are located on the same plane, the connecting element 50 is welded on the first flexible printed circuit board 30, and the connecting element 50 is located on one side of the light emitting surface of the flexible screen body 10 at this time; the touch layer 20 is bound with the second flexible printed circuit board 40; as shown in fig. 10b, the touch layer 20 is attached to one side of the light emitting surface of the flexible screen body 10, and at this time, the first flexible printed circuit board 30 and the second flexible printed circuit board 40 are located at two opposite ends of the flexible screen body 10; as shown in fig. 10c, the first flexible printed circuit board 30 and the second flexible printed circuit board 40 are folded to the back of the flexible screen body 10, and at this time, the connecting member 50 is located on the side of the first flexible printed circuit board 30 opposite to the flexible screen body 10; as shown in fig. 10d, the second flexible printed circuit board 40 is inserted into the socket 51 of the connector 50, and pressure is applied to the press cover 52, so that the second flexible printed circuit board 40 is in close contact with the press cover 52 to achieve electrical connection, and the first flexible printed circuit board 30 is electrically connected to the second flexible printed circuit board 40.
The above is only a specific embodiment of the flexible screen body 10 of the display panel being attached to the touch layer 20 and the first flexible printed circuit board 30 being connected to the second flexible printed circuit board 40. In other embodiments, the connector 50 can also be soldered to the second flexible printed circuit board 40, the first flexible printed circuit board 30 is inserted into the socket 51 of the connector 50, and the pressing cover 52 is pressed to make the first flexible printed circuit board 30 and the pressing cover 52 tightly contact. In another embodiment, when the touch layer 20 is attached to one side of the light emitting surface of the flexible screen body 10, the first flexible printed circuit board 30 and the second flexible printed circuit board 40 are located at two adjacent sides of the flexible screen body 10.
The present application also includes a second technical solution, which is a display device, including a driving circuit board (not shown) and the display panel, as shown in fig. 3 and 4, including a first flexible printed circuit board 30 and a second flexible printed circuit board 40; the driving circuit board is bound with the first flexible printed circuit board 30 or the second flexible printed circuit board 40 for driving the display panel.
In the display device of the embodiment of the application, the display panel is provided with the pressure dispersion layer 60, so that the contact stress area of the connecting piece 50 and the first flexible printed circuit board 30 or the second flexible printed circuit board 40 can be enlarged, the pressure of the connecting piece 50 on the flexible screen body 10 can be dispersed, the stress generated by the flexible screen body 10 can be dispersed, the pressure of the flexible screen body 10 can be reduced, and the condition of top printing generated by the flexible screen body 10 near the position of the connecting piece 50 can be improved; meanwhile, in the display device of the embodiment of the application, the display panel is connected with the first flexible printed circuit board 30 and the second flexible printed circuit board 40 through the connecting piece 50, so that the driving circuit board only needs to be bound with the first flexible printed circuit board 30, or the driving circuit board only needs to be bound with the second flexible printed circuit board 40, that is, the driving circuit board can be electrically connected with the flexible screen body 10 and the touch layer 20, the driving circuit board controls the flexible screen body 10 and the touch layer 20, and the connection mode of the display device is simplified.
The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.
Claims (10)
1. A display panel, comprising:
a flexible screen body;
the touch layer is arranged on one side of the light emitting surface of the flexible screen body;
a first flexible printed circuit board bound with the flexible screen body,
one end of the second flexible printed circuit board is bound with the touch layer;
the connecting piece is positioned on one side of the backlight surface of the flexible screen body and is used for electrically connecting the first flexible printed circuit board and the second flexible printed circuit board;
and the pressure dispersion layer is positioned in a pressure conduction path between the connecting piece and the flexible screen body and is used for reducing the pressure of the connecting piece on the flexible screen body.
2. The display panel according to claim 1, wherein the pressure distribution layer is provided on an outer peripheral side of a contact region of the connector with the first flexible printed circuit board or the second flexible printed circuit board, and the pressure distribution layer is connected to at least an outer peripheral side of the connector.
3. The display panel according to claim 2, wherein the pressure dispersion layer is provided around the connection member and connects the first flexible printed circuit board or the second flexible printed circuit board adjacent to the connection member.
4. The display panel according to claim 2, wherein a part of the pressure dispersion layer is located between the connector and the first flexible printed circuit board, or a part of the pressure dispersion layer is located between the connector and the second flexible printed circuit board.
5. The display panel according to claim 1, wherein the pressure dispersion layer is located between the connector and the flexible screen body, and an area of the pressure dispersion layer is larger than an area of a contact region of the connector with the first flexible printed circuit board or the second flexible printed circuit board.
6. The display panel according to claim 5, wherein the first flexible printed circuit board or/and the second flexible printed circuit board is/are located between the connector and the flexible screen body;
the pressure dispersion layer is arranged in the first flexible printed circuit board or/and the second flexible printed circuit board, and the orthographic projection of the pressure dispersion layer on the flexible screen body at least covers the orthographic projection of the connecting piece on the flexible screen body.
7. The display panel according to claim 5, wherein the first flexible printed circuit board includes a first substrate layer and a first protective layer, and the second flexible printed circuit board includes a second substrate layer and a second protective layer;
the pressure dispersion layer is arranged between the first base material layer and the first protection layer, or/and the pressure dispersion layer is arranged on one side, away from the first base material layer, of the first protection layer;
and/or the pressure dispersion layer is arranged between the second base material layer and the second protective layer, or/and the pressure dispersion layer is arranged on one side, deviating from the second base material layer, of the second protective layer.
8. The display panel according to claim 5, wherein the structure of the pressure-dispersing layer comprises a honeycomb-like layered structure.
9. The display panel according to claim 1,
the first flexible printed circuit board and the second flexible printed circuit board are positioned at two opposite ends or two adjacent sides of the flexible screen body.
10. A display device comprising a driver circuit board and the display panel according to any one of claims 1 to 9, the display panel comprising a first flexible printed circuit board and a second flexible printed circuit board;
the driving circuit board is bound with the first flexible printed circuit board or the second flexible printed circuit board and used for driving the display panel.
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| CN202111210495.7A CN114067683B (en) | 2021-10-18 | 2021-10-18 | Display panel and display device |
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| CN202111210495.7A CN114067683B (en) | 2021-10-18 | 2021-10-18 | Display panel and display device |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040061502A (en) * | 2002-12-31 | 2004-07-07 | 엘지.필립스 엘시디 주식회사 | Touch panel |
| CN201130365Y (en) * | 2007-12-18 | 2008-10-08 | 毛肖林 | Touch screen with high adhesion strength |
| CN101610633A (en) * | 2008-06-18 | 2009-12-23 | 索尼株式会社 | Flexible printed circuit board, touch pad, display floater and display |
| WO2013145692A1 (en) * | 2012-03-30 | 2013-10-03 | シャープ株式会社 | Display apparatus, electronic apparatus, and touch panel |
| CN104411089A (en) * | 2014-11-20 | 2015-03-11 | 上海天马微电子有限公司 | Flexible printed circuit board, laminating method of flexible printed circuit board and display device |
| CN105632344A (en) * | 2014-11-21 | 2016-06-01 | 三星显示有限公司 | Display device including touch screen panel |
| CN109085945A (en) * | 2017-06-13 | 2018-12-25 | 三星显示有限公司 | Show equipment |
| US20190138141A1 (en) * | 2017-11-09 | 2019-05-09 | Lg Display Co., Ltd. | Electroluminescence Display Device and Method of Fabricating Thereof |
| US20190259818A1 (en) * | 2018-02-21 | 2019-08-22 | Samsung Display Co., Ltd. | Oled display apparatus with reduced bezel |
| CN210015669U (en) * | 2019-06-12 | 2020-02-04 | 北京小米移动软件有限公司 | Display device and terminal |
| CN111508356A (en) * | 2020-04-17 | 2020-08-07 | 武汉华星光电半导体显示技术有限公司 | Display device and electronic equipment |
| CN212159397U (en) * | 2020-04-08 | 2020-12-15 | Oppo广东移动通信有限公司 | Flexible screen testing device and equipment |
| CN112602145A (en) * | 2019-08-01 | 2021-04-02 | 京东方科技集团股份有限公司 | Display device and assembling method thereof |
-
2021
- 2021-10-18 CN CN202111210495.7A patent/CN114067683B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040061502A (en) * | 2002-12-31 | 2004-07-07 | 엘지.필립스 엘시디 주식회사 | Touch panel |
| CN201130365Y (en) * | 2007-12-18 | 2008-10-08 | 毛肖林 | Touch screen with high adhesion strength |
| CN101610633A (en) * | 2008-06-18 | 2009-12-23 | 索尼株式会社 | Flexible printed circuit board, touch pad, display floater and display |
| WO2013145692A1 (en) * | 2012-03-30 | 2013-10-03 | シャープ株式会社 | Display apparatus, electronic apparatus, and touch panel |
| CN104411089A (en) * | 2014-11-20 | 2015-03-11 | 上海天马微电子有限公司 | Flexible printed circuit board, laminating method of flexible printed circuit board and display device |
| CN105632344A (en) * | 2014-11-21 | 2016-06-01 | 三星显示有限公司 | Display device including touch screen panel |
| CN109085945A (en) * | 2017-06-13 | 2018-12-25 | 三星显示有限公司 | Show equipment |
| US20190138141A1 (en) * | 2017-11-09 | 2019-05-09 | Lg Display Co., Ltd. | Electroluminescence Display Device and Method of Fabricating Thereof |
| US20190259818A1 (en) * | 2018-02-21 | 2019-08-22 | Samsung Display Co., Ltd. | Oled display apparatus with reduced bezel |
| JP2019144551A (en) * | 2018-02-21 | 2019-08-29 | 三星ディスプレイ株式會社Ｓａｍｓｕｎｇ Ｄｉｓｐｌａｙ Ｃｏ．，Ｌｔｄ． | Display device |
| CN210015669U (en) * | 2019-06-12 | 2020-02-04 | 北京小米移动软件有限公司 | Display device and terminal |
| CN112602145A (en) * | 2019-08-01 | 2021-04-02 | 京东方科技集团股份有限公司 | Display device and assembling method thereof |
| CN212159397U (en) * | 2020-04-08 | 2020-12-15 | Oppo广东移动通信有限公司 | Flexible screen testing device and equipment |
| CN111508356A (en) * | 2020-04-17 | 2020-08-07 | 武汉华星光电半导体显示技术有限公司 | Display device and electronic equipment |
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| Publication number | Publication date |
|---|---|
| CN114067683B (en) | 2023-11-24 |
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