CN117475767A - Display module and display device - Google Patents

Display module and display device Download PDF

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Publication number
CN117475767A
CN117475767A CN202311240121.9A CN202311240121A CN117475767A CN 117475767 A CN117475767 A CN 117475767A CN 202311240121 A CN202311240121 A CN 202311240121A CN 117475767 A CN117475767 A CN 117475767A
Authority
CN
China
Prior art keywords
backboard
display module
back plate
boss
section
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
Application number
CN202311240121.9A
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Chinese (zh)
Inventor
丁峰
黄威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to CN202311240121.9A priority Critical patent/CN117475767A/en
Publication of CN117475767A publication Critical patent/CN117475767A/en
Pending legal-status Critical Current

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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
    • 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
    • G09F9/33—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 being semiconductor devices, e.g. diodes
    • G09F9/335—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 being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The application discloses a display module and a display device, wherein the display module comprises a panel main body and a back plate assembly; the panel main body comprises a substrate, wherein the substrate is provided with a display section, a binding section and a bending section, and the binding section is bent to the back side of the substrate through the bending section and is arranged opposite to the display section; the backboard component comprises a first backboard and a second backboard, the first backboard and the second backboard are respectively and correspondingly arranged on two opposite surfaces of the display section and the binding section, the thickness of the first backboard is the same as that of the second backboard, an heightening boss is arranged on one side surface of the second backboard facing the first backboard in a protruding way, and the heightening boss and the second backboard are integrally formed; the heightening boss is arranged to heighten the second backboard, so that the overall thickness of the second backboard is increased, and the bending R angle form of the bending section is ensured; meanwhile, the heightening boss and the second backboard are integrally formed, so that the structure and the manufacturing process of the module can be simplified.

Description

Display module and display device
Technical Field
The application relates to the technical field of displays, in particular to a display module and a display device.
Background
In a flexible organic light-emitting semiconductor (Organic Electroluminescence Display, OLED) display screen, a display panel or a flexible circuit board (Flexible Printed Circuit, FPC) in a lower frame area needs to be bent due to design requirements so as to achieve the purpose of enlarging a screen display area; in the conventional flexible panel, BP (Back Plane) design is mostly two-stage, and in order to ensure a bonding R angle (bending R angle) form in a pad bonding process, an auxiliary material spacer (reinforcing material) support is usually added at a position corresponding to the second stage BP, so that the structure and the manufacturing process are complex.
Disclosure of Invention
The embodiment of the application provides a display module and a display device, which can simplify the module structure and the manufacturing process of the display module on the basis of ensuring the form of a bonding R angle.
In a first aspect, an embodiment of the present application provides a display module, including:
the panel main body comprises a substrate, wherein the substrate is provided with a display section, a binding section and a bending section, and the binding section is bent to the back side of the substrate through the bending section and is arranged opposite to the display section; the method comprises the steps of,
the backboard assembly comprises a first backboard and a second backboard, the first backboard and the second backboard are respectively and correspondingly arranged on two opposite surfaces of the display section and the binding section, the thickness of the first backboard is the same as that of the second backboard, an heightening boss is arranged on one side surface of the second backboard towards the first backboard in a protruding mode, and the heightening boss is integrally formed with the second backboard.
In an embodiment, the second backboard protrudes and extends towards the first backboard to form the heightened boss on the whole surface of one side of the second backboard towards the first backboard, and the heightened boss completely covers the second backboard.
In one embodiment, the raised boss has an edge that extends outwardly and is disposed beyond an edge of the second back plate.
In one embodiment, a side surface portion of the second back plate facing the first back plate protrudes toward the first back plate to form the raised boss.
In an embodiment, the display module is a foldable display module;
the display module further comprises a rigid support layer, wherein the rigid support layer is clamped between the first backboard and the second backboard;
the first backboard is adhered to the rigid support layer through a pressure sensitive adhesive;
the heightening boss is adhered to the rigid support layer through foam rubber or double faced adhesive tape.
In an embodiment, the material of the rigid supporting layer includes one of stainless steel, aluminum alloy and carbon fiber.
In an embodiment, the display module is a non-folded display module;
the display module further comprises an ultra-clean foam composite film, and the ultra-clean foam composite film is clamped between the first backboard and the second backboard;
the heightening boss is adhered with the ultra-clean foam composite membrane through foam rubber.
In an embodiment, the ultra-clean foam composite film is directed from the first back plate to the second back plate, and comprises a bonding layer, a foam layer, a polyimide layer and a metal layer which are sequentially stacked;
wherein the bonding layer is adhered to the first backboard;
the metal layer is adhered with the heightening boss through foam rubber.
In one embodiment, a side surface of the raised boss facing the first back plate is provided with a rough surface.
In a second aspect, an embodiment of the present application further provides a display device, where the display device includes the display module.
The beneficial effects are that: the display module comprises a panel main body and a back plate assembly, wherein the panel main body comprises a substrate, and the substrate is provided with a display section, a binding section and a bending section; the backboard component comprises a first backboard arranged on the display section and a second backboard arranged on the binding section, a heightening boss is arranged on one side surface of the second backboard facing the first backboard in a protruding mode, the heightening boss and the second backboard are integrally formed, and the heightening boss is used for heightening the second backboard, so that the overall thickness of the second backboard is increased, and the bending R angle form of the bending section is guaranteed; and, because increase the boss with the integrative setting of second backplate, consequently through increase the boss and replace current stilling, on guaranteeing the basis of the crooked R angle form of crooked section, can reach the purpose of simplifying module structure and manufacturing procedure.
Drawings
Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a conventional display module;
fig. 2 is a schematic structural diagram of a display module provided in an embodiment of the present application;
fig. 3 is a schematic view of the back plate assembly of fig. 2 (in a flat unassembled state).
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. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only, and features defining "first," "second," and the like may explicitly or implicitly include one or more of the recited features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature being "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact. Moreover, the first feature being "above," "over" and "above" the second feature merely means that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature merely means that the first feature is less level than the second feature.
In a first aspect, an embodiment of the present application provides a display module 100, where the display module 100 may be a display module 100 of a smart phone, a tablet computer, a display screen, or the like. Referring to fig. 2 and 3, the display module 100 includes a panel body 1 and a back plate assembly 2; the panel main body 1 comprises a substrate 11, wherein the substrate 11 is provided with a display section 11a, a binding section 11b and a bending section 11c, and the binding section 11b is bent to the back side of the substrate 11 through the bending section 11c and is opposite to the display section 11 a; the backboard assembly 2 comprises a first backboard 21 and a second backboard 22, the first backboard 21 and the second backboard 22 are respectively and correspondingly arranged on two opposite surfaces of the display section 11a and the binding section 11b, the thickness of the first backboard 21 is the same as that of the second backboard 22, an heightening boss 23 is arranged on one side surface of the second backboard 22, which faces the first backboard 21, and the heightening boss 23 and the second backboard 22 are integrally formed.
Referring to fig. 1, in a conventional display module 100', there are a display section 11a', a binding section 11b 'and a bending section 11c', a first section BP (first back plate) 21 'corresponds to the display section 11a', a second section BP (second back plate) 22 'corresponds to the binding section 11b', and in order to ensure a bonding R angle (bending R angle) shape in a pad bonding (panel bending) process, an auxiliary material spacer 23 '(reinforcing material) support is added at a position corresponding to the second section BP (second back plate) 22', thereby increasing complexity of a module structure and a process; in this application, the second back plate 22 is formed with the raised boss 23; by arranging the heightening boss 23 to replace the existing stopper, the purpose of simplifying the module structure and the manufacturing process can be achieved on the basis of ensuring the shape of the bending R angle of the bending section 11 c.
It will be appreciated that the material of the first back plate 21 and the second back plate 22 is usually polyethylene terephthalate (PET), and the raised boss 23 is formed integrally with the second back plate 22, so that the raised boss 23 is the same as the second back plate 22.
The specific form of the raised boss 23 is not limited in this application, and may be that a side surface portion of the second back plate 22 facing the first back plate 21 protrudes toward the first back plate 21; the second back plate 22 may be integrally protruded toward the first back plate 21 toward one side surface of the first back plate 21.
In an embodiment, referring further to fig. 2, a side surface of the second back plate 22 facing the first back plate 21 is protruded and extended toward the first back plate 21 to form the raised boss 23, and the raised boss 23 completely covers the second back plate 22; by this arrangement, the process of the second back plate 22 and the raised boss 23 can be further simplified, and the production is facilitated.
It will be appreciated that based on the structure of the existing display module 100, the binding section 11b has a first end remote from the curved section 11 c; wherein the second back plate 22 and the raised boss 23 are disposed proximate the first end. In some embodiments, the edge of the raised boss 23 extends outwards and is disposed beyond the edge of the second back plate 22, that is, the raised boss 23 and the second back plate 22 form a "T" structure, so that the contact area between the raised boss 23 and the rigid support layer 3 can be increased, and the stability of the display module 100 is improved.
In some embodiments, the display module 100 is a foldable display module; the display module further comprises a rigid supporting layer 3, wherein the rigid supporting layer 3 is clamped between the first backboard 21 and the second backboard 22; the first backboard 21 is adhered to the rigid support layer 3 through pressure sensitive adhesive; the heightening boss 23 is adhered to the rigid support layer 3 through foam glue. The panel body 1 is provided with a rigid supporting effect by providing the rigid supporting layer 3 to maintain the surface flatness of the display section 11 a.
In other embodiments, the raised boss 23 may be adhered to the rigid support layer 3 by double sided tape.
Specifically, the material of the rigid support layer 3 includes one of stainless steel, aluminum alloy and carbon fiber.
The display module 100 further includes a buffer layer, and the buffer layer is sandwiched between the first back plate 21 and the rigid support layer 3. Specifically, the material of the buffer layer may be foam, which provides a buffer effect for the display module 100, and when the display module 100 receives an external force, the buffer effect may be achieved, so as to prevent the display module 100 from being damaged.
In other embodiments, the display module 100 is a non-folded display module; the display module 100 further includes an ultra-clean foam composite film, which is sandwiched between the first back plate 21 and the second back plate 22; the heightening boss 23 is adhered with the ultra-clean foam composite membrane through foam rubber. By providing an SCF composite film (Super Clean Foam) between the first back plate 21 and the second back plate 22 to buffer the external force, damage to the display module 100 due to the bonding pressure during the bonding process of the display module 100 can be prevented.
In other embodiments, the raised boss 23 may also be adhered to the ultra-clean foam composite membrane by double sided tape.
The ultra-clean foam composite film includes an adhesive layer, a foam layer, a polyimide layer, and a metal layer, which are laminated in this order, in a direction from the first back plate 21 to the second back plate 22; wherein the bonding layer is adhered to the first backboard; the metal layer is adhered with the heightening boss through foam rubber. The adhesive layer may be a mesh adhesive (Embo), which has the function of adhering and exhausting, and is flexible, so that the flexible design of the display module 100 is not affected. In other embodiments, the tie layer may be other tie layers. The foam layer can be foam, and can play a role in buffering and shading. The polyimide layer can play a role in reinforcing, so that the reliability of SCF is improved; in other embodiments, the SCF may not include the polyimide layer; and the polyimide layer can be replaced by a graphite layer, and the outer surface of the graphite layer can be coated by polyimide. The material of the metal layer can be one metal of copper and aluminum or an alloy structure thereof, and the metal layer can play a role in heat dissipation; the metal layer may be copper foil or aluminum foil.
As can be appreciated, referring to fig. 3, when the first back plate 21 and the second back plate 22 are not mounted on the face body, the release film 5 is attached to the first back plate 21 and the second back plate 22, so as to protect the adhesive on the first back plate 21 and the second back plate 22; in the process, the release film 5 can be directly removed, and the first back plate 21 and the second back plate 22 are respectively and correspondingly attached to the display section 11a and the binding section 11b, so that the operation is simple and convenient.
In an embodiment, the material of the first back plate 21 and the second back plate 22 may be polyethylene terephthalate (PET, polyethylene terephthalate) or Polyimide (PI, polyimide), but is not limited thereto; the materials of the first back plate 21 and the second back plate 22 may be the same or different, and the materials that can play a certain supporting effect on the panel main body 1 are all within the protection scope of the present application, and the supporting effect does not affect the deformation of the panel main body 1 in the present application caused by stress.
And, in order to secure adhesion between the second back plate 22 and the rigid support layer 3 or the ultra clean foam composite film; in an embodiment of the present application, a side surface of the raised boss 23 facing the first back plate is provided with a rough surface; the surface of the heightening boss 23 is set to be a rough surface, so that the adhesive force between the heightening boss 23 and the rigid support layer 3 or the ultra-clean foam composite film can be increased, and the adhesion between the second backboard 22 and the rigid support layer 3 or the ultra-clean foam composite film is more stable.
In an embodiment, the panel body 1 further includes a display functional layer 12, and the display functional layer 12 is disposed on the light emitting side of the display section 11 a.
Meanwhile, the base 11 includes a PI film layer 111 and a TFT substrate 112 that are stacked; the display functional layer 12 is disposed on a side of the TFT substrate 112 away from the PI film layer 111.
In one embodiment, the display function layer 12 includes an OLED structure disposed on the TFT substrate 112.
The specific arrangement form of the OLED structure is not limited in this application, and preferably, the OLED structure is disposed on the TFT substrate 112 through a thin film package.
In an embodiment, the display module 100 further includes a driving unit 4, where the driving unit 4 is disposed on a side of the binding section 11b away from the display section 11a, and is electrically connected to the binding section 11 b.
In a second aspect, an embodiment of the present application further provides a display device, where the display device includes a display module 100, and it is to be noted that the display module 100 is set as the display module 100 described above, that is, the display module 100 has all the embodiments of the display module 100 described above, and the display device also has all the technical features of all the embodiments of the display module 100 described above, that is, all the beneficial effects brought by all the technical features are not repeated herein.
The specific structure of the display module 100 and the display back plate refer to any embodiment of the display module 100 and the display back plate and the drawings, and are not described herein.
In this embodiment, the display device may further include a middle frame, a frame glue, and the like, and the display device may be a display terminal such as a mobile phone, a watch, a tablet, a television, and the like, which is not limited herein.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The display module and the display device provided by the embodiments of the present application are described in detail, and specific examples are applied to illustrate the principles and the implementation of the present application, and the description of the above embodiments is only used to help understand the technical solution and the core idea of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A display module, comprising:
the panel main body comprises a substrate, wherein the substrate is provided with a display section, a binding section and a bending section, and the binding section is bent to the back side of the substrate through the bending section and is arranged opposite to the display section; the method comprises the steps of,
the backboard assembly comprises a first backboard and a second backboard, the first backboard and the second backboard are respectively and correspondingly arranged on two opposite surfaces of the display section and the binding section, the thickness of the first backboard is the same as that of the second backboard, an heightening boss is arranged on one side surface of the second backboard towards the first backboard in a protruding mode, and the heightening boss is integrally formed with the second backboard.
2. The display module of claim 1, wherein a side surface of the second back plate facing the first back plate is entirely extended toward the first back plate to form the raised boss, and the raised boss entirely covers the second back plate.
3. The display module assembly of claim 2, wherein an edge of the raised boss extends outwardly beyond an edge of the second back plate.
4. The display module of claim 1, wherein a side surface portion of the second back plate facing the first back plate protrudes toward the first back plate to form the raised boss.
5. The display module of claim 1, wherein the display module is a foldable display module;
the display module further comprises a rigid support layer, wherein the rigid support layer is clamped between the first backboard and the second backboard;
the first backboard is adhered to the rigid support layer through a pressure sensitive adhesive;
the heightening boss is adhered to the rigid support layer through foam rubber or double faced adhesive tape.
6. The display module of claim 5, wherein the rigid support layer comprises one of stainless steel, aluminum alloy, and carbon fiber.
7. The display module of claim 1, wherein the display module is a non-folded display module;
the display module further comprises an ultra-clean foam composite film, and the ultra-clean foam composite film is clamped between the first backboard and the second backboard;
the heightening boss is adhered with the ultra-clean foam composite membrane through foam rubber.
8. The display module of claim 7, wherein the ultra-clean foam composite film comprises an adhesive layer, a foam layer, a polyimide layer and a metal layer which are sequentially stacked from the first back plate to the second back plate;
wherein the bonding layer is adhered to the first backboard;
the metal layer is adhered with the heightening boss through foam rubber.
9. The display module assembly of claim 1, wherein a side surface of the raised boss facing the first back plate is roughened.
10. A display device comprising a display module according to any one of claims 1-9.
CN202311240121.9A 2023-09-22 2023-09-22 Display module and display device Pending CN117475767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311240121.9A CN117475767A (en) 2023-09-22 2023-09-22 Display module and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311240121.9A CN117475767A (en) 2023-09-22 2023-09-22 Display module and display device

Publications (1)

Publication Number Publication Date
CN117475767A true CN117475767A (en) 2024-01-30

Family

ID=89626557

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311240121.9A Pending CN117475767A (en) 2023-09-22 2023-09-22 Display module and display device

Country Status (1)

Country Link
CN (1) CN117475767A (en)

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