CN117742027A - Display module and display module attaching process - Google Patents
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- CN117742027A CN117742027A CN202311838091.1A CN202311838091A CN117742027A CN 117742027 A CN117742027 A CN 117742027A CN 202311838091 A CN202311838091 A CN 202311838091A CN 117742027 A CN117742027 A CN 117742027A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008569 process Effects 0.000 title claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 172
- 239000010410 layer Substances 0.000 claims abstract description 105
- 239000000565 sealant Substances 0.000 claims abstract description 84
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 239000012790 adhesive layer Substances 0.000 claims abstract description 23
- 239000011521 glass Substances 0.000 claims description 42
- 239000002390 adhesive tape Substances 0.000 claims description 21
- 239000003292 glue Substances 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000012945 sealing adhesive Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000008093 supporting effect Effects 0.000 abstract description 14
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 8
- 238000010030 laminating Methods 0.000 abstract description 6
- 206010025421 Macule Diseases 0.000 abstract description 3
- 230000035882 stress Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000002189 macula lutea Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 239000005041 Mylar™ Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Abstract
The application relates to a display module and a display module attaching process. The display module comprises a first substrate and a second substrate, wherein the first substrate is provided with an adhesive layer; the edge of the second substrate is provided with a frame, one side of the frame, which is close to the first substrate, is provided with a first sealant layer, one side of the second substrate, which is close to the first substrate, is provided with a display area, and the periphery of the display area of the second substrate is provided with a second sealant layer. The first substrate is attached to the second substrate through the adhesive layer, and the first sealant layer and the second sealant layer are in sealing connection with the first substrate. According to the display module assembly and the display module assembly laminating process, the first sealant layer provides sealing and supporting between the frame and the first substrate, the second sealant layer provides sealing and supporting between the second substrate and the first substrate, so that stress of the first substrate and the second substrate is more uniform when the first substrate and the second substrate are laminated, thickness uniformity of the liquid crystal box is guaranteed, and therefore the problems of light leakage, mura and macula are relieved.
Description
Technical Field
The application relates to the technical field of display modules, in particular to a display module and a display module attaching process.
Background
With the development of display screen technology, the display module is widely applied in various fields such as mobile phones, vehicle navigation systems, industrial control, medical treatment, self-service terminals and the like, and is convenient for users, so that brand new user experience is brought.
In the assembly process of the display module, the protective glass plate is generally attached to the display panel, but the attached display module is often changed in thickness of the liquid crystal box due to uneven stress during attachment, so that the problems of light leakage, mura (indicating uneven brightness of the display and various marks) and yellow spots are caused.
Disclosure of Invention
Based on the above, it is necessary to provide a display module and a process for attaching the display module, which are necessary to solve the problems of light leakage, mura and macula due to the thickness change of the liquid crystal cell caused by uneven stress during the attachment.
An embodiment of a first aspect of the present application provides a display module, including:
a first substrate provided with an adhesive layer;
the display device comprises a first substrate, a second substrate, a first sealing glue layer, a second sealing glue layer and a first sealing glue layer, wherein a frame is arranged at the edge of the first substrate;
the first substrate is attached to the second substrate through the adhesive layer, and the first sealant layer and the second sealant layer are in sealing connection with the first substrate.
In one embodiment, the second substrate is configured as a display panel layer, the display panel layer comprising:
the display area is arranged on one side, close to the first substrate, of the glass substrate, and the frame is arranged on the edge of the glass substrate;
and the polaroid is arranged in the display area and is used for being attached to the adhesive layer on the first substrate.
In one embodiment, the display module further includes an adhesive tape adhered to a side of the glass substrate adjacent to the first substrate and an outer periphery of the bezel.
In one embodiment, the first sealant layer is disposed on a side of the adhesive tape away from the glass substrate;
the second sealant layer is arranged on one side of the adhesive tape, which is far away from the glass substrate.
In one embodiment, the width of the first sealant layer is greater than the width of the second sealant layer.
In one embodiment, the first substrate is configured as a protective glass layer.
In one embodiment, the first sealant layer is closed to form a first dam;
the second sealant layer is closed to form a second dam.
In one embodiment, a gap is provided between the first sealant layer and the second sealant layer.
An embodiment of a second aspect of the present application provides a display module assembly attaching process, including:
coating an adhesive layer on a first substrate;
installing a frame on a second substrate, and coating sealant on one side of the frame, which is close to the first substrate, so as to form a first sealant layer;
a display area is arranged on one side of the second substrate, which is close to the first substrate, and sealant is coated on the periphery of the display area to form a second sealant layer;
and attaching the adhesive layer on the first substrate to the second substrate, wherein the first sealant layer and the second sealant layer are in sealing connection with the first substrate.
In one embodiment, the second substrate is configured as a display panel layer, the display panel layer includes a glass substrate, and the bezel is mounted on an edge of the glass substrate;
one side of the glass substrate close to the first substrate is adhered with an adhesive tape on the periphery of the frame;
the first sealing glue layer and the second sealing glue layer are arranged on one side, away from the glass substrate, of the adhesive tape.
According to the display module assembly and the display module assembly laminating process, when first base plate and second base plate are laminated, the first sealant layer provides sealing and support between frame and first base plate, the second sealant layer provides sealing and support between second base plate and first base plate, when promoting laminating sealing effect, the holding power has been increased for first base plate and second base plate atress is more even when laminating, guarantees that liquid crystal box thickness is unanimous, thereby alleviates the problem of light leak, mura and macula lutea.
Drawings
Fig. 1 is a schematic structural diagram of a display module before bonding according to an embodiment of the disclosure.
Fig. 2 is a schematic structural diagram of a display module according to an embodiment of the disclosure.
Fig. 3 is a top view of a first substrate in a display module according to an embodiment of the disclosure.
Fig. 4 is a flowchart of a display module attaching process according to an embodiment of the present application.
Fig. 5 is a flowchart of a display module attaching process according to another embodiment of the present application.
Reference numerals:
1. a first substrate; 11. an adhesive layer;
2. a second substrate; 21. a glass substrate; 22. a polarizer;
3. a frame;
4. a first sealant layer;
5. a second sealant layer;
6. and (3) adhesive tape.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.
In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. 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, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.
With the development of display screen technology, the display module is widely applied in various fields such as mobile phones, vehicle navigation systems, industrial control, medical treatment, self-service terminals and the like, and is convenient for users, so that brand new user experience is brought.
In the assembly process of the display module, the protective glass plate is generally attached to the display panel, but the attached display module is often changed in thickness of the liquid crystal box due to uneven stress during attachment, so that the problems of light leakage, mura (indicating uneven brightness of the display and various marks) and yellow spots are caused.
For solving above-mentioned problem, this application has proposed a display module assembly, through setting up first sealant layer 4 and second sealant layer 5 to the hookup time supporting position is increased, the atress degree of consistency when promoting the subsides, guarantees that liquid crystal box thickness is unanimous, thereby alleviates the problem of light leak, mura and macula lutea.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a display module according to an embodiment of the disclosure before bonding. Fig. 2 is a schematic structural diagram of a display module according to an embodiment of the disclosure. At least one embodiment of the present application proposes a display module comprising a first substrate 1 and a second substrate 2, the first substrate 1 being provided with an adhesive layer 11; the edge of the second substrate 2 is provided with a frame 3, one side of the frame 3, which is close to the first substrate 1, is provided with a first sealant layer 4, one side of the second substrate 2, which is close to the first substrate 1, is provided with a display area, and the periphery of the display area of the second substrate 2 is provided with a second sealant layer 5. The first substrate 1 is bonded to the second substrate 2 through the adhesive layer 11, and the first sealant layer 4 and the second sealant layer 5 are hermetically connected to the first substrate 1.
According to the display module of the embodiment of the application, when the first substrate 1 and the second substrate 2 are attached, the first sealant layer 4 provides sealing and supporting between the frame 3 and the first substrate 1, the second sealant layer 5 provides sealing and supporting between the second substrate 2 and the first substrate 1, the attaching sealing effect is improved, meanwhile, the supporting force is increased, the first substrate 1 and the second substrate 2 are stressed more uniformly when attached, the thickness of a liquid crystal box is guaranteed to be consistent, and therefore the problems of light leakage, mura and macula are relieved.
In some embodiments, the adhesive layer 11 is configured as an optically clear adhesive, TOCA for short. The transparent optical adhesive has certain adhesive strength, high light transmittance, refractive index similar to that of the transparent optical element, good durability, certain toughness, zero curing shrinkage and no internal stress, so that the adhesive layer 11 can realize good light transmittance while ensuring the bonding effect between the first substrate 1 and the second substrate 2.
In some embodiments, the second substrate 2 is configured as a display panel layer, LCM for short, comprising a glass substrate 21 and a polarizer 22. Wherein, the glass substrate 21 is abbreviated as TFT, and the polarizer 22 is abbreviated as POL. A display area is arranged on one side of the glass substrate 21, which is close to the first substrate 1, and a frame 3 is arranged at the edge of the glass substrate 21; the polarizer 22 is disposed in the display area and is used for being attached to the adhesive layer 11 on the first substrate 1. Specifically, the edge of the display area is spaced apart from the edge of the glass substrate 21. The frame 3 is configured as a plastic frame made of plastic material, and it will be appreciated that in other embodiments, the frame 3 may be made of other materials, which is not limited herein. In the conventional technology, the minimum distance between the glass substrate 21 and the frame 3 is generally 2mm, the maximum distance is generally 4.37mm, and the second sealant layer 5 can provide a supporting force in the gap between the glass substrate 21 and the frame 3 so as to compensate the structural gap therein, so that the stress is more uniform when the first substrate 1 and the second substrate 2 are attached.
In some embodiments, the display module further includes an adhesive tape 6, where the adhesive tape 6 is adhered to a side of the glass substrate 21 near the first substrate 1 and an outer periphery of the bezel 3. Specifically, the adhesive tape 6 is configured as a Mylar adhesive tape 6, abbreviated as Mylar adhesive tape 6. The surface flatness, transparency and mechanical flexibility are good. The glass substrate 21 and the frame 3 are adhered and fixed through the adhesive tape 6, so that the light leakage of the display module is further reduced.
In some embodiments, the first sealant layer 4 is disposed on a side of the tape 6 remote from the glass substrate 21. The second sealant layer 5 is disposed on a side of the tape 6 away from the glass substrate 21. Through the above arrangement, the first sealant layer 4 and the second sealant layer 5 are both disposed on the side of the adhesive tape 6 away from the glass substrate 21, but in the vertical direction, the projection of the first sealant layer 4 is disposed on the frame 3, and the projection of the second sealant layer 5 is disposed on the glass substrate 21. When the first substrate 1 and the second substrate 2 are attached, the first sealant layer 4 provides sealing and supporting effects from the edge of the frame 3, and the second sealant layer 5 provides sealing and supporting effects from the edge of the second substrate 2, so that attaching stress uniformity is improved.
In some embodiments, the width of the first sealant layer 4 is greater than the width of the second sealant layer 5. Because the first sealant layer 4 is located at the outermost side, and plays the most major role in sealing and supporting, the width of the first sealant layer 4 is set to be larger than the width of the second sealant layer 5, so that the sealing and supporting effects thereof can be ensured. The second sealant layer 5 provides further support only on the second substrate 2, and the width of the second sealant layer is smaller, so that the expected effect can be achieved. So design, the structure of arrangement display module assembly that can be reasonable.
In some embodiments, the first substrate 1 is configured as a protective glass layer, CG for short. It will be appreciated that in other embodiments, the first substrate 1 is not limited to CG and the second substrate 2 is not limited to LCM.
Referring to fig. 3, fig. 3 shows a top view of the first substrate 1 in the display module according to an embodiment of the disclosure. In some embodiments, the first sealant layer 4 is closed to form a first dam. The second sealant layer 5 is closed to form a second dam. Through the arrangement, the first sealing glue layer 4 and the second sealing glue layer 5 are more stable and reliable in structure.
In some embodiments, a gap is provided between the first sealant layer 4 and the second sealant layer 5. The gap can be reserved for the deformation space of the first sealing adhesive layer 4 and the second sealing adhesive layer 5 in the transverse direction when the first substrate 1 and the second substrate 2 are attached, so that the attaching work is facilitated.
Referring to fig. 4, fig. 4 is a flowchart illustrating a display module attaching process according to an embodiment of the disclosure. At least one embodiment of the present application provides a display module attaching process, including the following steps:
coating an adhesive layer 11 on the first substrate 1;
mounting a frame 3 on a second substrate 2, and coating sealant on one side of the frame 3, which is close to the first substrate 1, so as to form a first sealant layer 4;
a display area is arranged on one side of the second substrate 2 close to the first substrate 1, and sealant is coated on the periphery of the display area to form a second sealant layer 5;
the adhesive layer 11 on the first substrate 1 is bonded to the second substrate 2, and the first and second sealant layers 4 and 5 are hermetically connected to the first substrate 1.
It will be appreciated that the steps of coating the adhesive layer 11 on the first substrate 1 and disposing the first sealant layer 4 and the second sealant layer 5 after mounting the frame 3 on the second substrate 2 are not separately performed, and may be performed randomly or simultaneously.
In some embodiments, the display module assembly attaching process includes the following steps:
step S200, coating an adhesive layer 11 on the first substrate 1;
step S310, installing a frame 3 on a second substrate 2, and coating sealant on one side of the frame 3 close to the first substrate 1 to form a first sealant layer 4;
step S320, a display area is arranged on one side of the second substrate 2 close to the first substrate 1, and sealant is coated on the periphery of the display area to form a second sealant layer 5;
in step S400, the adhesive layer 11 on the first substrate 1 is bonded to the second substrate 2, and the first sealant layer 4 and the second sealant layer 5 are sealed and connected to the first substrate 1.
It is understood that the steps of step S310 and step S320 are not separately performed, and may be performed sequentially or simultaneously.
In some embodiments, the second substrate 2 is configured as a display panel layer including a glass substrate 21, and the bezel 3 is mounted to an edge of the glass substrate 21. The glass substrate 21 is adjacent to the side of the first substrate 1 and the outer periphery of the frame 3 is bonded with the adhesive tape 6. The first sealing glue layer 4 and the second sealing glue layer 5 are arranged on one side of the adhesive tape 6 far away from the glass substrate 21.
Referring to fig. 5, fig. 5 is a flowchart illustrating a display module attaching process according to another embodiment of the present application. In some embodiments, the first substrate 1 is configured as CG and the second substrate 2 is configured as LCM. The display module attaching process specifically comprises the following specific steps:
step S200, CG incoming material inspection; CG cleaning; CG fits TOCA;
step S300, LCM material feeding inspection; LCM cleaning; the LCM is provided with a first sealing glue layer 4 and a second sealing glue layer 5;
step 400, attaching CG and LCM;
step S500, aging treatment
Step S600, checking;
and step S700, shipment.
Specifically, CG cleaning and LCM cleaning may be performed using a plasma cleaning apparatus.
According to the display module and the display module laminating process of the embodiment of the application, when the first substrate 1 and the second substrate 2 are laminated, the first sealant layer 4 provides sealing and supporting between the frame 3 and the first substrate 1, the second sealant layer 5 provides sealing and supporting between the second substrate 2 and the first substrate 1, the laminating sealing effect is improved, and meanwhile, the supporting force is increased, so that the first substrate 1 and the second substrate 2 are stressed more uniformly when being laminated, the thickness of a liquid crystal box is ensured to be consistent, and the problems of light leakage, mura and macula lutea are relieved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A display module, comprising:
a first substrate (1), the first substrate (1) being provided with an adhesive layer (11);
the display device comprises a first substrate (1), a second substrate (2), a frame (3) is arranged at the edge of the first substrate (1), a first sealant layer (4) is arranged on one side, close to the first substrate (1), of the frame (3), a display area is arranged on one side, close to the first substrate (1), of the second substrate (2), and a second sealant layer (5) is arranged on the periphery of the display area of the second substrate (2);
the first substrate (1) is attached to the second substrate (2) through the adhesive layer (11), and the first sealant layer (4) and the second sealant layer (5) are in sealing connection with the first substrate (1).
2. A display module according to claim 1, characterized in that the second substrate (2) is configured as a display panel layer comprising:
a glass substrate (21), wherein the display area is arranged on one side of the glass substrate (21) close to the first substrate (1), and the frame (3) is arranged at the edge of the glass substrate (21);
and the polaroid (22) is arranged in the display area and is used for being attached to the adhesive layer (11) on the first substrate (1).
3. A display module according to claim 2, characterized in that the display module further comprises an adhesive tape (6), the adhesive tape (6) being adhered to the side of the glass substrate (21) close to the first substrate (1) and to the periphery of the bezel (3).
4. A display module according to claim 3, characterized in that the first sealant layer (4) is arranged on the side of the adhesive tape (6) remote from the glass substrate (21);
the second sealant layer (5) is arranged on one side of the adhesive tape (6) away from the glass substrate (21).
5. A display module according to claim 1, characterized in that the width of the first sealant layer (4) is larger than the width of the second sealant layer (5).
6. A display module according to claim 1, characterized in that the first substrate (1) is configured as a protective glass layer.
7. A display module according to claim 1, wherein the first sealant layer (4) is closed to form a first dam;
the second sealing glue layer (5) is closed to form a second dam.
8. A display module according to claim 1, characterized in that a gap is provided between the first sealant layer (4) and the second sealant layer (5).
9. The display module assembly attaching process is characterized by comprising the following steps of:
coating an adhesive layer (11) on a first substrate (1);
a frame (3) is arranged on the second substrate (2), and sealant is coated on one side, close to the first substrate (1), of the frame (3) so as to form a first sealant layer (4);
a display area is arranged on one side of the second substrate (2) close to the first substrate (1), and sealant is coated on the periphery of the display area to form a second sealant layer (5);
and bonding the adhesive layer (11) on the first substrate (1) with the second substrate (2), wherein the first sealing adhesive layer (4) and the second sealing adhesive layer (5) are in sealing connection with the first substrate (1).
10. The display module attaching process according to claim 9, wherein the second substrate (2) is configured as a display panel layer including a glass substrate (21), and the bezel (3) is mounted to an edge of the glass substrate (21);
a peripheral adhesive tape (6) of the frame (3) is adhered to one side of the glass substrate (21) close to the first substrate (1);
the first sealing glue layer (4) and the second sealing glue layer (5) are arranged on one side, far away from the glass substrate (21), of the adhesive tape (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311838091.1A CN117742027A (en) | 2023-12-28 | 2023-12-28 | Display module and display module attaching process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311838091.1A CN117742027A (en) | 2023-12-28 | 2023-12-28 | Display module and display module attaching process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117742027A true CN117742027A (en) | 2024-03-22 |
Family
ID=90283222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311838091.1A Pending CN117742027A (en) | 2023-12-28 | 2023-12-28 | Display module and display module attaching process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117742027A (en) |
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2023
- 2023-12-28 CN CN202311838091.1A patent/CN117742027A/en active Pending
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