CN115331548A - Display module, manufacturing method thereof and display device - Google Patents
Display module, manufacturing method thereof and display device Download PDFInfo
- Publication number
- CN115331548A CN115331548A CN202210862334.4A CN202210862334A CN115331548A CN 115331548 A CN115331548 A CN 115331548A CN 202210862334 A CN202210862334 A CN 202210862334A CN 115331548 A CN115331548 A CN 115331548A
- Authority
- CN
- China
- Prior art keywords
- area
- display
- groove
- display panel
- back plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000005452 bending Methods 0.000 claims abstract description 71
- 239000012790 adhesive layer Substances 0.000 claims description 24
- 239000010410 layer Substances 0.000 claims description 24
- 238000003825 pressing Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000007740 vapor deposition Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 14
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 239000002346 layers by function Substances 0.000 description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display module, a manufacturing method thereof and a display device, wherein the display module comprises: a display panel including a display region and a non-display region; the back plate is attached to the backlight side of the display panel, and the non-display area is bent to the backlight side of the display panel and attached to the back plate; the non-display area comprises a first extension area, a bending area and a second extension area which are sequentially arranged, the first extension area is connected with the display area, the second extension area is parallel to the display area, one side of the non-display area, which is close to the back plate, is provided with a groove, and the groove is positioned at the edge of the bending area; the side of the back plate close to the display panel is provided with a bulge which is clamped with the groove. Through protruding and recess block, can be in the district edge reinforcing backplate of buckling and display panel's being connected, make display panel receive the extrusion effect to act on, can not produce stress concentration's problem, reduce the deformation volume that display panel received extruded position to lead to display panel to appear buckling crack, display panel to peel off or drop scheduling problem when improving the district of buckling and being extruded.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display module, a manufacturing method of the display module and a display device.
Background
With the development of science and technology, display devices such as mobile phones and computers become an indispensable part of people's daily life, the requirements of users on the display panel of the display device are higher and higher, and the lightness, thinness and high screen ratio become the development direction of the display panel.
The current Display types mainly include Liquid Crystal Display (Liquid Crystal Display LCD), organic Light-Emitting Diode (Organic Light-Emitting Diode OLED), plasma Display (Plasma Display Panel PDP), and electronic ink Display. The organic light-emitting diode display screen is light and thin in size, low in power consumption, wide in visual angle, response time period, high in luminous efficiency, wide in color gamut, low in working voltage and high in cruising ability, and can be bent to facilitate realization of higher screen occupation ratio.
Therefore, it is desirable to provide a display module, a method for manufacturing the same, and a design of a display device.
Disclosure of Invention
In view of the above, the present invention provides a display module, a manufacturing method thereof, and a display device, so as to solve the problems of bending cracks or peeling of a display panel during a bending process.
In one aspect, the present invention discloses a display module, comprising:
a display panel including a display area and a non-display area at least partially surrounding the display area;
the back plate is attached to the backlight side of the display panel, and the non-display area is bent to the backlight side of the display panel and attached to the back plate;
the non-display area comprises a first extension area, a bending area and a second extension area which are sequentially arranged, the first extension area is connected with the display area, the second extension area is parallel to the display area, a groove is arranged on one side, close to the back plate, of the non-display area, and the groove is located at the edge of the bending area;
and one side of the back plate, which is close to the display panel, is provided with a bulge, and the bulge is clamped with the groove.
On the other hand, the invention discloses a manufacturing method of a display module, which comprises the following steps:
providing a display panel, wherein the display panel comprises a display area and a non-display area at least partially surrounding the display area, the non-display area comprises a first extension area, a bending area and a second extension area which are sequentially arranged, and the first extension area is connected with the display area;
carrying out vapor deposition grooving on the backlight side of the display panel to obtain a groove, wherein the groove is positioned at the edge of the bending area;
attaching a back plate to the backlight surface of the display panel, wherein the back plate comprises an adhesive layer and a supporting layer, and the adhesive layer is positioned on one side of the supporting layer close to the display panel;
applying pressure to the display panel and the back plate which are stacked to enable the bonding layer to be at least partially pressed into the groove;
bending the bending area.
In another aspect, the invention discloses a display device comprising the display module.
Compared with the prior art, the display module provided by the invention at least realizes the following beneficial effects:
in the display module provided by the invention, the back plate is attached to the backlight side of the display panel, and the non-display area of the display panel is bent to the backlight side of the display panel and is attached to the back plate; the back plate can support and protect the display panel; the non-display area comprises a first extension area, a bending area and a second extension area which are sequentially arranged, the first extension area is connected with the display area, the second extension area is parallel to the display area, a groove is arranged on one side, close to the back plate, of the non-display area, and the groove is located at the edge of the bending area; one side that the backplate is close to display panel is equipped with the arch, arch and recess block, increase backplate and display panel's connection area promptly, can be in the district edge of buckling and strengthen backplate and display panel's being connected, make display panel when receiving the extrusion power, can not produce stress concentration's problem, reduce the deformation volume that display panel received the extruded position, thereby improve the district of buckling and lead to display panel to appear buckling the crack when being extruded, display panel peels off or drops the scheduling problem, the life of extension display panel, promote display module's reliability.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a display module provided in the prior art;
FIG. 2 is a schematic structural diagram of a display module according to the present invention;
FIG. 3 is a schematic view of another structure of the display module according to the present invention;
FIG. 4 is a schematic view of another structure of the display module according to the present invention;
FIG. 5 is a schematic view of another structure of a display module according to the present invention;
FIG. 6 is a top view of a display panel and a back plate according to the present invention;
FIG. 7 is another top view of the display panel and the back plate of the present invention;
FIG. 8 is a schematic view of another structure of the display module according to the present invention;
FIG. 9 is a schematic view of another structure of the display module according to the present invention;
FIG. 10 is a flowchart illustrating a method for fabricating a display module according to the present invention;
FIG. 11 is a schematic structural diagram of a display panel according to the present invention;
FIG. 12 is a schematic structural diagram of a display panel and a back plate according to the present invention;
FIG. 13 is a schematic view of another structure of a display panel and a back plate according to the present invention;
FIG. 14 is a schematic view of another structure of the display module according to the present invention;
fig. 15 is a schematic plan view of a display device according to the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display module provided in the prior art, a display module 200 'includes a display panel 100' and a backplane 01', the display panel 100' includes a display area DA 'and a non-display area NDA', the backplane 01 'is attached to a backlight side of the display panel 100', the non-display area NDA 'is bent to the backlight side of the display panel 100' and attached to the backplane 01', the backplane 01' is connected to the display panel 100 'by gluing or physical means, a connection effect between the backplane 01' and the display panel 100 'is limited, when a pressing force is applied to a bent position of the display panel 100', a stress at a stressed position is concentrated, and the display panel 100 'is damaged or peeled off from the backplane 01'.
In view of this, the present invention provides a display module, so as to improve the problems of the display panel, such as bending cracks or peeling, during the bending process, and ensure the reliability of the display module.
Referring to fig. 2 and 3, fig. 2 is a schematic structural diagram of a display module according to the present invention, and fig. 3 is another schematic structural diagram of a display module according to the present invention, to illustrate a specific embodiment of the display module according to the present invention, which includes:
a display panel 100 including a display area DA and a non-display area NDA at least partially surrounding the display area DA;
the back plate 01 is attached to the backlight side of the display panel 100, and the non-display area NDA is bent to the backlight side of the display panel 100 and attached to the back plate 01;
the non-display area NDA comprises a first extension area FNDA, a bending area WNDA and a second extension area SNDA which are sequentially arranged, the first extension area FNDA is connected with the display area DA, the second extension area SNDA is parallel to the display area DA, a groove 02 is formed in one side, close to the back plate 01, of the non-display area NDA, and the groove 02 is located on the edge of the bending area WNDA;
a protrusion 03 is disposed on one side of the back plate 01 close to the display panel 100, and the protrusion 03 is engaged with the groove 02.
It should be noted that the display panel 100 is a flexible display panel, and specifically, the display panel 100 may be a flexible organic light emitting diode display panel, and the organic light emitting diode display panel includes other film layers such as a flexible substrate (not shown), a light emitting layer (not shown), and an encapsulation layer (not shown), which is not limited in particular. The back plate 01 is attached to the backlight side of the display panel 100, the back plate 01 is generally a rigid structure for supporting and protecting the flexible display panel 100, fig. 2 and 3 only show that the back plate 01 is not disposed in the bending region WNDA, but it is not limited thereto, and the first extension region FNDA and the bending region WNDA may be disposed without the back plate 01. Fig. 2 and fig. 3 only show that the side of the display panel 100 away from the backplane 01 is provided with the protective adhesive 04, the protective adhesive 04 covers the bending area WNDA, the protective adhesive 04 can be made of ultraviolet curing adhesive (UV curing adhesive) to protect the routing wires of the bending area WNDA, and avoid the breakage of the routing wires in the bending area WNDA during bending, certainly, the protective adhesive 04 can also be made of thermosetting adhesive and visible light curing adhesive, and is not limited thereto, the protective adhesive 04 covers the bending area WNDA, so that the stress of the bending area WNDA can be integrally relieved, and the bending area WNDA is integrally protected. Fig. 2 and fig. 3 also only show that in order to improve the bendability of the flexible display panel 100, the thickness of the display panel 100 in the bending region WNDA and the first extension region FNDA is smaller than the thickness of the display panel 100 in the display region DA, but not limited thereto, and the thickness of only the portion of the display panel 100 located in the bending region WNDA may be reduced, and a step region may be formed at a position where the thickness of the display panel 100 changes, or may be designed to be in transition, which is not limited in this embodiment. The display module 200 further includes a polarizer 05 and an optical adhesive layer 06, which are not described in detail in this embodiment.
It will be understood that the notch 02 is only shown in FIG. 2 as being located in the first extension region FNDA and that the notch 02 is only shown in FIG. 3 as being located in the second extension region SNDA, although it is not limited thereto and it is also possible to provide both the first extension region FNDA and the second extension region SNDA with notches 02. Referring to fig. 2, the rear panel 01 includes a first rear panel 011 and a second rear panel 012, the first rear panel 011 is located in the display area DA and at least partially located in the first extension area FNDA; the second backplane 012 is located in the second extension area SNDA, the groove 02 is located in the first extension area FNDA close to the bending area WNDA, the protrusion 03 is located in the first backplane 011 close to the bending area WNDA, that is, in the first extension area FNDA, the edge of the first backplane 011 is connected with the display panel 100 through the protrusion 03 and the groove 02 in a strengthening manner, the contact area between the first backplane 011 and the display panel 100 is increased, and when the first pressing force F1 or the second pressing force F2 is received, the display panel 100 is damaged or peeled off due to the stress concentration generated at the connection between the edge of the first backplane 011 and the display panel 100. Similarly, referring to fig. 3, the groove 02 is located at the second extending region SNDA and is close to the bending region WNDA, the protrusion 03 is located at the second back plate 012 and is close to the bending region WNDA, that is, at the second extending region SNDA, the edge of the second back plate 012 and the display panel 100 are connected in a strengthened manner through the protrusion 03 and the groove 02, the contact area between the second back plate 012 and the display panel 100 is increased, and when the third extrusion force F3 or the fourth extrusion force F4 is avoided, the stress concentration generated at the connection between the edge of the second back plate 012 and the display panel 100 causes the display panel 100 to be damaged or peeled off.
Compared with the prior art, the display module 200 provided by the implementation has the following advantages at least:
in the display module 200 provided by the invention, the back plate 01 is attached to the backlight side of the display panel 100, and the non-display area NDA of the display panel 100 is bent to the backlight side of the display panel 100 and is attached to the back plate 01; the back plate 01 can support and protect the display panel 100; the non-display area NDA comprises a first extension area FNDA, a bending area WNDA and a second extension area SNDA which are sequentially arranged, the first extension area FNDA is connected with the display area DA, the second extension area SNDA is parallel to the display area DA, a groove 02 is formed in one side, close to the back plate 01, of the non-display area NDA, and the groove 02 is located on the edge of the bending area WNDA; backplate 01 is equipped with arch 03 near one side of display panel 100, arch 03 and recess 02 block, increase backplate 01 and display panel 100's connection area promptly, can strengthen backplate 01 and display panel 100's connection in bending area WNDA edge, make display panel 100 when receiving the squeeze power, can not produce the problem of stress concentration, reduce display panel 100 and receive the deformation volume of extruded position, thereby lead to display panel 100 to appear buckling crack when improving bending area WNDA and being extrudeed, display panel 100 peels off or drops the scheduling problem, the life of extension display panel 100, promote display module assembly 200's reliability.
In some alternative embodiments, referring to fig. 4, fig. 4 is a schematic structural diagram of a display module provided by the present invention, in which the backplane 01 includes a support layer and an adhesive layer, the adhesive layer is located on a side of the support layer close to the display panel 100, a side of the adhesive layer away from the support layer is provided with a protrusion 03, and the protrusion 03 is made of the same material as the adhesive layer.
It is understood that the material of the supporting layer can be polyethylene terephthalate, the material of the Adhesive layer can be Pressure Sensitive Adhesive (Pressure Sensitive Adhesive PSA), and the present invention is not limited thereto. The material that sets up arch 03 and bond line is the same, and arch 03 and bond line are as an organic whole promptly, avoid arch 03 and bond line separation, can also make arch 03 have viscidity, strengthen protruding 03 and recess 02's being connected.
In some optional embodiments, referring to fig. 5, fig. 5 is a schematic structural diagram of a display module provided by the present invention, a backplane 01 includes a first backplane 011 and a second backplane 012, the first backplane 011 is located in a display area DA and at least partially located in a first extension area FNDA, a protrusion 03 includes a first protrusion 031, and a side of the first backplane 011 close to a bending area WNDA is provided with the first protrusion 031; the second back plate 012 is located in the second extending region SNDA, the protrusion 03 further includes a second protrusion 032, and a second protrusion 032 is disposed on one side of the second back plate 012 close to the bending region WNDA; recess 02 includes first recess 021 and second recess 022, and first recess 021 is located first extension district FNDA, and second recess 022 is located second extension district SNDA, first recess 021 and first protruding 031 block, second recess 022 and the protruding 032 block of second.
After the entire back plate 01 of the first back plate 011 and the second back plate 012 is attached to the backlight side of the display panel 100, a portion of the back plate 01 corresponding to the bending region WNDA is removed to reduce the bending stress during bending, thereby forming the first back plate 011 and the second back plate 012. Referring to fig. 5, a functional layer 09 is further included between the first backplane 011 and the second backplane 012, the functional layer 09 includes a laminated adhesive tape layer 10 and a composite layer 11, the adhesive tape layer 10 can be a prosthetic adhesive tape and plays a supporting role, the composite layer 11 is a structure that copper foil and foam are stacked, the copper foil has good conductivity and can realize electromagnetic shielding, and meanwhile, the copper foil also has good heat conductivity and can realize a good heat dissipation function by heat transfer, i.e., the functional layer 09 can have functions of supporting, protecting, electromagnetic shielding and heat dissipation.
It can be understood that fig. 5 only shows that the edge of the first backplane 011 is flush with the edge of the second backplane 012, and the bent area WNDA after bending is semicircular, certainly, but not limited thereto, the edge of the first backplane 011 and the display panel 100 are in reinforced connection through the first protrusion 031 and the first groove 021, the edge of the second backplane 012 and the display panel 100 are in reinforced connection through the second protrusion 032 and the second groove 022, that is, the connection area of the first backplane 011 and the display panel 100 is increased in the first extension area FNDA, the connection area of the second backplane 012 and the display panel 100 is also increased in the second extension area SNDA, the connection reliability of the backplane 01 and the display panel 100 is increased, when the bent area WNDA between the first extension area FNDA and the second extension area SNDA receives the pressing force, the routing stress applied to the first extension area FNDA and the second extension area SNDA is reduced, the problems of breakage, and peeling of the display panel 100, the FNDA and the quality of the display panel 100 is ensured.
In some alternative embodiments, referring to fig. 6, fig. 6 is a top view of the display panel and the back plate provided in the present invention, a plurality of first grooves 021 are arranged in an array, and the first protrusions 031 are disposed corresponding to the first grooves 021; a plurality of second recess 022 array is arranged, and second arch 032 corresponds the setting with second recess 022.
It can be understood that fig. 6 only shows that the orthographic projection of the first groove 021 and the orthographic projection of the second groove 022 on the display panel 100 are rectangular, and certainly, the invention is not limited thereto, the orthographic projection of the first groove 021 and the second groove 022 on the display panel 100 can also be circular, regular polygon, etc., and the embodiment only shows the size of the first groove 021 and the second groove 022, the number of the first groove 021 and the second groove 022, the distance between the adjacent first grooves 021, and the distance between the adjacent second grooves 022, and is not limited, and can be adjusted according to actual requirements. Set up a plurality of first recess 021 array and arrange, a plurality of second recess 022 array arranges, can be convenient for make. Correspondingly, the first protrusions 031 and the first grooves 021 are respectively connected, the second protrusions 032 and the second grooves 022 are respectively connected, so that the connection reliability of the edge of the first backplane 011 and the display panel 100 and the connection reliability of the edge of the second backplane 012 and the display panel 100 can be further improved, and the problem of new stress concentration caused by the fact that the protrusions 03 are of long strip structures and have strong rigidity can be avoided.
In some optional embodiments, referring to fig. 7, fig. 7 is another top view of the display panel and the back plate provided in the present invention, the first grooves 021 are sequentially arranged along a first direction X to form first groove 021 rows, the first groove 021 rows are sequentially arranged along a second direction Y, the second direction Y intersects with the first direction X, two adjacent first groove 021 rows are staggered, and the first protrusions 031 are disposed corresponding to the first grooves 021; second recess 022 arranges in order along first direction X and forms second recess 022 row, and second recess 022 row arranges in order along second direction Y, and two adjacent second recess 022 rows are crisscross to be set up, and second arch 032 corresponds the setting with second recess 022.
It can be understood that only the first extension area FNDA is shown in fig. 7 to be provided with a plurality of first grooves 021, the plurality of first grooves 021 are arranged in a staggered manner, the second extension area SNDA is provided with a plurality of second grooves 022, the plurality of second grooves 022 are arranged in a staggered manner, the connection between the edge of the first backplane 011 and the display panel 100 is enhanced through the plurality of grooves 02 and the protrusions 03, the edge of the second backplane 012 is connected with the display panel 100, when the bending area WNDA receives the extrusion force, the concentrated stress of the display panel 100 near the bending area WNDA is reduced, the condition that the display panel 100 is near the bending area and cracks is improved, and the problem that the display panel 100 near the bending area WNDA is peeled off from the first backplane 011 and the second backplane 012 can be improved.
In some alternative embodiments, with continued reference to fig. 5, the first groove 021 and the second groove 022 are semicircular in the first cross section taken along the direction perpendicular to the display panel 100, and the groove bottoms of the first groove 021 and the second groove 022 are both arcs.
It can be understood that, since the back sheet 01 includes the support layer 07 and the adhesive layer 08, the protrusion 03 is made of the same material as the adhesive layer 08, and the protrusion 03 can be formed by pressing a portion of the adhesive layer 08 into the groove 02 of the display panel 100 when the back sheet 01 is laminated with the display panel 100, the groove bottoms of the first groove 021 and the second groove 022 are both arc-shaped, so that the material of the adhesive layer 08 can be easily inserted into the first groove 021 and the second groove 022, thereby forming the first protrusion 031 to be tightly connected with the first groove 021 and forming the second protrusion 032 to be tightly connected with the second groove 022.
In some optional embodiments, referring to fig. 8, fig. 8 is a schematic structural diagram of a display module provided in the present invention, a second cross section is taken along a direction perpendicular to the display panel 100, the first groove 021 is a first trapezoid on the second cross section, an upper bottom of the first trapezoid is a bottom of the first groove 021, and a length of the upper bottom of the first trapezoid is greater than a length of a lower bottom of the first trapezoid; the cross section of the second groove 022 on the second cross section is a second trapezoid, the bottom of the second trapezoid is the bottom of the second groove 022, and the length of the bottom of the second trapezoid is greater than that of the top of the second trapezoid.
It can be understood that, in fig. 8, the first trapezoid and the second trapezoid have the same shape, that is, the first groove 021 and the second groove 022 may be the same, which is convenient for manufacturing, but not limited thereto, the upper bottom of the first trapezoid is the bottom of the first groove 021, the length of the upper bottom of the first trapezoid is greater than the length of the lower bottom of the first trapezoid, correspondingly, the first protrusion 031 is matched with the first groove 021, the length of the side of the first protrusion 031 close to the bottom of the first groove 021 is greater than the length of the lower bottom of the first trapezoid, that is, the length of the side of the first protrusion 031 close to the bottom of the first groove 021 is greater than the length of the side of the first groove 021 close to the first backplane 011, and the first protrusion 031 is difficult to be separated from the first groove 021, so that the peeling problem between the display panel 100 and the first backplane 011 can be further improved, the reliability of connection between the display panel 100 and the first backplane 011 can be ensured, and the quality of the display module 200 can also be ensured. Similarly, the second trapezoidal bottom is the tank bottom of second recess 022, the length that the second trapezoidal bottom is greater than the length at the bottom of the second trapezoidal top, it is corresponding, protruding 032 of second matches with second recess 022, the length that the second is protruding 032 and is close to one side of the tank bottom of second recess 022 is greater than the length at the bottom of the second trapezoidal top, the length that the second is protruding 032 and is close to one side of the tank bottom of second recess 022 is greater than the length that the second recess 022 is close to one side of second backplate 012 promptly, the protruding 032 of second also can't separate with second recess 022, improve the condition of the peeling off of display panel 100 and second backplate 012.
In some alternative embodiments, referring to fig. 9, fig. 9 is a schematic structural view of a display module provided by the present invention, in which at least two first grooves 021 are sequentially arranged in a direction along the display area DA toward the first extension area FNDA, and the lengths of the groove bottoms of the at least two first grooves 021 are continuously increased; in the direction pointing to the bending region WNDA along the second extending region SNDA, the at least two second grooves 022 are arranged in sequence, and the lengths of the groove bottoms of the at least two second grooves 022 are increased continuously.
It can be understood that fig. 9 only illustrates that the length of the groove bottom of the first groove 021 is changed continuously, and the length of the side of the first groove 021 close to the first back plate 011 is not changed; the length of the groove bottom of the second groove 022 varies continuously, and the length of the side of the second groove 022 close to the second back plate 012 does not vary, but is not limited thereto, and the length of the side of the first groove 021 close to the first back plate 011 may vary continuously, and the length of the side of the second groove 022 close to the second back plate 012 may vary continuously. The closer to the position of the bending region WNDA, the greater the length of the bottom of the first groove 021, the better the effect of preventing the first protrusion 031 from being separated from the first groove 021, i.e. the problem of peeling the display panel 100 and the first backboard 011 is improved, and similarly, the closer to the position of the bending region WNDA, the greater the length of the bottom of the second groove 022, the better the effect of preventing the second protrusion 032 from being separated from the second groove 022, the better the reliability of connecting the display panel 100 and the second backboard 012 can be improved,
in some optional embodiments, referring to fig. 10 to 14, fig. 10 is a flowchart of a manufacturing method of a display module provided by the present invention, fig. 11 is a schematic structural diagram of a display panel provided by the present invention, fig. 12 is a schematic structural diagram of a display panel and a back plate provided by the present invention, fig. 13 is another schematic structural diagram of a display panel and a back plate provided by the present invention, fig. 14 is another schematic structural diagram of a display module provided by the present invention, so as to illustrate a specific manufacturing method of a display module provided by the present embodiment, including:
s1: providing a display panel 100, wherein the display panel 100 comprises a display area DA and a non-display area NDA at least partially surrounding the display area DA, the non-display area NDA comprises a first extension area FNDA, a bending area WNDA and a second extension area SNDA which are sequentially arranged, and the first extension area FNDA is connected with the display area DA;
s2: performing vapor deposition grooving on the backlight side of the display panel 100 to obtain a groove 02, wherein the groove 02 is positioned at the WNDA edge of the bending area;
referring to fig. 11, it is only illustrated in fig. 11 that both the first extension region FNDA and the second extension region SNDA are provided with the grooves 02, but of course, it may be also possible to provide only the first extension region FNDA with the grooves 02 or only the second extension region SNDA with the grooves 02, which is not limited in this embodiment.
S3: attaching a back plate 01 to a backlight surface of the display panel 100, wherein the back plate 01 comprises an adhesive layer 08 and a support layer 07, and the adhesive layer 08 is positioned on one side of the support layer 07 close to the display panel 100;
referring to fig. 12, the adhesive layer 08 bonds the support layer 07 and the display panel 100, and the position of the back plate 01 corresponding to the bending region WNDA may be cut off to reduce the bending stress when bending.
S4: applying pressure to the stacked display panel 100 and the back sheet 01 to press the adhesive layer 08 at least partially into the groove 02;
referring to fig. 13, the portion of the adhesive layer 08 pressed into the groove 02 forms a protrusion 03, which can increase the bonding area between the adhesive layer 08 and the groove 02, increase the adhesion between the display panel 100 and the back plate 01, and the protrusion 03 is not easily peeled off from the groove 02, thereby further improving the problem that the display panel 100 and the back plate 01 are peeled off, reducing the concentrated stress at the edge of the bending area WNDA, and improving the occurrence of bending cracks and the like of the display panel 100.
S5: bending the bending region WNDA.
Referring to fig. 14, both ends of the bending region WNDA are aligned, the bending region WNDA is bent, and the second extension region SNDA is bent to the backlight side of the display region DA.
It can be understood that, be located display area DA edge through setting up recess 02, backplate 01 is equipped with and corresponds arch 03 and recess 02 and is connected, can reduce the concentrated stress at bending area WNDA edge when buckling, avoids display panel 100 damaged, can also improve the problem that display panel 100 and backplate 01 peeled off, promotes display module assembly 200's reliability.
Based on the same inventive concept, referring to fig. 15, fig. 15 is a schematic plan view of a display device 300 according to the present invention. The present invention provides a display device 300 including the display module 200 according to any of the above embodiments. The embodiment of fig. 15 is only an example of a mobile phone, and the display device 300 is described, it should be understood that the display device 300 provided in the embodiment of the present invention may be other display devices 300 having a display function, such as a computer, a television, and a vehicle-mounted display device 300, and the present invention is not limited thereto. The display device 300 provided in the embodiment of the present invention has the beneficial effects of the display module 200 provided in the embodiment of the present invention, and specific reference may be made to the specific description of the display module 200 in the foregoing embodiments, which is not repeated herein.
According to the embodiment, the display module provided by the invention at least has the following beneficial effects:
in the display module provided by the invention, the back plate is attached to the backlight side of the display panel, and the non-display area of the display panel is bent to the backlight side of the display panel and is attached to the back plate; the back plate can support and protect the display panel; the non-display area comprises a first extension area, a bending area and a second extension area which are sequentially arranged, the first extension area is connected with the display area, the second extension area is parallel to the display area, a groove is arranged on one side, close to the back plate, of the non-display area, and the groove is located at the edge of the bending area; one side that the backplate is close to display panel is equipped with the arch, arch and recess block, increase backplate and display panel's connection area promptly, can be in the district edge of buckling and strengthen backplate and display panel's being connected, make display panel when receiving the extrusion power, can not produce stress concentration's problem, reduce the deformation volume that display panel received the extruded position, thereby improve the district of buckling and lead to display panel to appear buckling the crack when being extruded, display panel peels off or drops the scheduling problem, the life of extension display panel, promote display module's reliability.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A display module, comprising:
a display panel including a display area and a non-display area at least partially surrounding the display area;
the back plate is attached to the backlight side of the display panel, and the non-display area is bent to the backlight side of the display panel and attached to the back plate;
the non-display area comprises a first extension area, a bending area and a second extension area which are sequentially arranged, the first extension area is connected with the display area, the second extension area is parallel to the display area, a groove is arranged on one side, close to the back plate, of the non-display area, and the groove is located on the edge of the bending area;
and a protrusion is arranged on one side, close to the display panel, of the back plate and is clamped with the groove.
2. The display module assembly according to claim 1, wherein the back plate comprises a support layer and an adhesive layer, the adhesive layer is located on one side of the support layer close to the display panel, and the side of the adhesive layer away from the support layer is provided with the protrusions, and the protrusions are made of the same material as the adhesive layer.
3. The display module assembly according to claim 1, wherein the back plate comprises a first back plate and a second back plate, the first back plate is located in the display area and at least partially located in the first extension area, the protrusion comprises a first protrusion, and the first protrusion is disposed on a side of the first back plate close to the bending area; the second back plate is positioned in the second extension area, the bulges also comprise second bulges, and one side of the second back plate, which is close to the bending area, is provided with the second bulges;
the grooves comprise a first groove and a second groove, the first groove is located in the first extending area, the second groove is located in the second extending area, the first groove is clamped with the first protrusion, and the second groove is clamped with the second protrusion.
4. The display module according to claim 3, wherein a plurality of the first grooves are arranged in an array, and the first protrusions are disposed corresponding to the first grooves;
the plurality of second grooves are arranged in an array, and the second protrusions are arranged corresponding to the second grooves.
5. The display module according to claim 3, wherein the first grooves are sequentially arranged along a first direction to form a first groove row, the first groove row is sequentially arranged along a second direction, the second direction crosses the first direction, two adjacent first groove rows are staggered, and the first protrusions are disposed corresponding to the first grooves;
the second grooves are sequentially arranged in the first direction to form second groove rows, the second groove rows are sequentially arranged in the second direction, two adjacent second groove rows are arranged in a staggered mode, and the second protrusions correspond to the second grooves.
6. The display module of claim 3, wherein the first and second grooves are each semicircular in shape in the first cross-section taken along a direction perpendicular to the display panel, and wherein the groove bottoms of the first and second grooves are each curved.
7. The display module according to claim 3, wherein a second cross section taken along a direction perpendicular to the display panel, the first groove is a first trapezoid on the second cross section, an upper bottom of the first trapezoid is a bottom of the first groove, and a length of the upper bottom of the first trapezoid is greater than a length of the lower bottom of the first trapezoid; the section of the second groove on the second section is a second trapezoid, the bottom of the second trapezoid is the groove bottom of the second groove, and the length of the bottom of the second trapezoid is greater than that of the top of the second trapezoid.
8. The display module according to claim 7, wherein at least two first grooves are arranged in sequence along a direction in which the display area points to the first extension area, and a length of a groove bottom of at least two first grooves is continuously increased;
along the direction that the second extension area points to the bending area, at least two the second recess is arranged in order, and at least two the length of the tank bottom of second recess constantly increases.
9. A manufacturing method of a display module is characterized by comprising the following steps:
providing a display panel, wherein the display panel comprises a display area and a non-display area at least partially surrounding the display area, the non-display area comprises a first extension area, a bending area and a second extension area which are sequentially arranged, and the first extension area is connected with the display area;
carrying out vapor deposition grooving on the backlight side of the display panel to obtain a groove, wherein the groove is positioned at the edge of the bending area;
attaching a back plate to the backlight surface of the display panel, wherein the back plate comprises an adhesive layer and a supporting layer, and the adhesive layer is positioned on one side of the supporting layer close to the display panel;
applying pressure to the display panel and the back plate which are stacked to enable the bonding layer to be at least partially pressed into the groove;
bending the bending area.
10. A display device comprising the display module according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210862334.4A CN115331548A (en) | 2022-07-21 | 2022-07-21 | Display module, manufacturing method thereof and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210862334.4A CN115331548A (en) | 2022-07-21 | 2022-07-21 | Display module, manufacturing method thereof and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115331548A true CN115331548A (en) | 2022-11-11 |
Family
ID=83919678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210862334.4A Pending CN115331548A (en) | 2022-07-21 | 2022-07-21 | Display module, manufacturing method thereof and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115331548A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116360141A (en) * | 2023-03-27 | 2023-06-30 | 武汉天马微电子有限公司 | Display module, display device and preparation method of display module |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065570A (en) * | 2018-07-18 | 2018-12-21 | 昆山国显光电有限公司 | Display panel and display device |
| CN109585509A (en) * | 2018-11-29 | 2019-04-05 | 昆山国显光电有限公司 | Display panel, display device and the method for making display panel |
| CN110097828A (en) * | 2019-04-18 | 2019-08-06 | 武汉华星光电技术有限公司 | Flexible display panels |
| CN110299073A (en) * | 2019-07-23 | 2019-10-01 | 昆山国显光电有限公司 | A kind of display panel, flexible connecting member and display device |
| CN110752230A (en) * | 2018-07-24 | 2020-02-04 | 京东方科技集团股份有限公司 | Flexible substrate, manufacturing method thereof and display device |
| CN110767094A (en) * | 2019-11-12 | 2020-02-07 | 昆山工研院新型平板显示技术中心有限公司 | Flexible cover plate and flexible display screen |
| CN112164713A (en) * | 2020-10-21 | 2021-01-01 | 昆山工研院新型平板显示技术中心有限公司 | Flexible display screen, preparation method thereof and display device |
| CN113140158A (en) * | 2021-04-06 | 2021-07-20 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN113658512A (en) * | 2021-08-23 | 2021-11-16 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
| CN114512059A (en) * | 2022-03-30 | 2022-05-17 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN114677918A (en) * | 2022-03-22 | 2022-06-28 | 深圳市华星光电半导体显示技术有限公司 | Flexible display panel and preparation method thereof |
| CN216980028U (en) * | 2022-01-30 | 2022-07-15 | 京东方科技集团股份有限公司 | Display device and display panel |
-
2022
- 2022-07-21 CN CN202210862334.4A patent/CN115331548A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065570A (en) * | 2018-07-18 | 2018-12-21 | 昆山国显光电有限公司 | Display panel and display device |
| CN110752230A (en) * | 2018-07-24 | 2020-02-04 | 京东方科技集团股份有限公司 | Flexible substrate, manufacturing method thereof and display device |
| WO2020108017A1 (en) * | 2018-11-29 | 2020-06-04 | 昆山国显光电有限公司 | Display panel, display device, and method for manufacturing substrate for display panel |
| CN109585509A (en) * | 2018-11-29 | 2019-04-05 | 昆山国显光电有限公司 | Display panel, display device and the method for making display panel |
| CN110097828A (en) * | 2019-04-18 | 2019-08-06 | 武汉华星光电技术有限公司 | Flexible display panels |
| CN110299073A (en) * | 2019-07-23 | 2019-10-01 | 昆山国显光电有限公司 | A kind of display panel, flexible connecting member and display device |
| CN110767094A (en) * | 2019-11-12 | 2020-02-07 | 昆山工研院新型平板显示技术中心有限公司 | Flexible cover plate and flexible display screen |
| CN112164713A (en) * | 2020-10-21 | 2021-01-01 | 昆山工研院新型平板显示技术中心有限公司 | Flexible display screen, preparation method thereof and display device |
| CN113140158A (en) * | 2021-04-06 | 2021-07-20 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN113658512A (en) * | 2021-08-23 | 2021-11-16 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
| CN216980028U (en) * | 2022-01-30 | 2022-07-15 | 京东方科技集团股份有限公司 | Display device and display panel |
| CN114677918A (en) * | 2022-03-22 | 2022-06-28 | 深圳市华星光电半导体显示技术有限公司 | Flexible display panel and preparation method thereof |
| CN114512059A (en) * | 2022-03-30 | 2022-05-17 | 京东方科技集团股份有限公司 | Display panel and display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116360141A (en) * | 2023-03-27 | 2023-06-30 | 武汉天马微电子有限公司 | Display module, display device and preparation method of display module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190033911A1 (en) | Electronic Devices With Cover Layers Mounted to Displays | |
| CN112234152B (en) | Heat dissipation film and curved surface screen display device | |
| CN111816082A (en) | Display assembly, assembling method thereof and display device | |
| US9854668B2 (en) | Display device | |
| EP1571537A1 (en) | Narrow-frame touch panel | |
| CN111489654B (en) | Support film and forming method thereof, display panel and manufacturing method thereof | |
| CN113555412A (en) | Display module and display device | |
| CN111416056A (en) | Display panel and display device | |
| CN112599018B (en) | Display device | |
| US7993730B2 (en) | Electro-optical device and electronic apparatus | |
| CN113380861B (en) | Display panel and preparation method thereof | |
| CN113555408B (en) | Display device, display module and manufacturing method thereof | |
| CN212322555U (en) | Display assembly and display device | |
| CN115331548A (en) | Display module, manufacturing method thereof and display device | |
| CN114284449A (en) | Display module and display device | |
| CN114843417A (en) | Display module and display device | |
| CN217562189U (en) | Display assembly and terminal equipment | |
| CN115662283A (en) | Folding display assembly and display device | |
| CN115132086A (en) | Display screen, preparation method thereof and display device | |
| CN114267254A (en) | Display module, manufacturing method thereof and display device | |
| JP2013182995A (en) | Display and method for manufacturing display | |
| JP7098888B2 (en) | Back electrode base material for electronic paper, electronic paper using it, and methods for manufacturing them. | |
| CN115273664B (en) | Curved surface display panel, curved surface display device and manufacturing method | |
| CN221768646U (en) | OLED display module and display device | |
| CN217739887U (en) | Capacitive screen and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221111 |