CN113870728A - Display back plate, display module and manufacturing method of display module - Google Patents
Display back plate, display module and manufacturing method of display module Download PDFInfo
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- CN113870728A CN113870728A CN202111036337.4A CN202111036337A CN113870728A CN 113870728 A CN113870728 A CN 113870728A CN 202111036337 A CN202111036337 A CN 202111036337A CN 113870728 A CN113870728 A CN 113870728A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
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Abstract
The invention discloses a display back plate, a display module and a manufacturing method of the display module, wherein the display back plate comprises a supporting layer, an intermediate layer and a heat conduction layer, and the intermediate layer is arranged on the supporting layer; the heat conduction layer is arranged on one side, away from the supporting layer, of the middle layer; the supporting layer, the middle layer and the heat conducting layer are formed through one-time punch forming. The technical scheme that this application is disclosed directly is in the same place multilayer structure shaping through once-through processing, and the display backplate that obtains is except possessing good structural strength, still has heat conduction and radiating function, so can reduce other spare parts of assembly on the backplate when equipment display module assembly, play reduction in production cost, simplify production technology, promote the effect of productivity efficiency.
Description
Technical Field
The invention relates to the technical field of display devices, in particular to a display back plate, a display module and a manufacturing method of the display module.
Background
At present, with the continuous innovation of the technology in the field of display panels, the application of Organic Light-Emitting Diode (OLED) modules, Mini LED modules, Micro LED modules and other display modules is becoming more and more widespread. The method is applied to household electronic equipment such as smart phones, smart televisions, smart watches, computers and the like. Since the emergence of new generation display technology, more and more brands are related to the field and actively push products, the size of the display screen is gradually increased after more than ten years of technical development, and the OLED display device, the Mini LED display device and the Micro LED display device are representative products of high-end technology in the display industry.
Because display panel's high integration, so display module assembly has the characteristic that generates heat at the during operation, in order in time to dispel the heat, in the equipment display module assembly, often need structures such as assembly back of the body frame, center, heating panel.
However, the assembly process of the existing display module uses more parts, which results in the difficulty of assembly, complex operation, increased assembly time and reduced productivity and efficiency of production.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a display backplane, a display module and a method for manufacturing the display module, which aims to solve the problems of complicated operation, long assembly time and low productivity and efficiency in the assembly process of the display module.
The technical scheme of the invention is as follows:
a display back plate comprises a supporting layer, an intermediate layer and a heat conduction layer, wherein the intermediate layer is arranged on the supporting layer; the heat conduction layer is arranged on one side, away from the supporting layer, of the middle layer; the supporting layer, the middle layer and the heat conducting layer are formed through one-time punch forming.
The display back plate, wherein the supporting layer comprises a flat plate part and a side part, and the middle layer and the heat conducting layer are sequentially arranged on the flat plate part; the side part is formed by bending the side part towards one side provided with the middle layer on the flat plate part, the side part is arranged around the heat conduction layer, and one end of the side part, which is far away from the flat plate part, is higher than the plane where the heat conduction layer is located.
The display back plate is characterized in that one end, away from the flat plate part, of the side part is provided with a reinforcing rib, and the reinforcing rib bends towards one side of the side part towards the heat conducting layer.
The display back plate is characterized in that a surface coating formed by color coating surface treatment is arranged on the surface of the flat plate part, which is far away from the intermediate layer.
The display back plate is characterized in that the supporting layer is a metal iron layer; and/or the heat conduction layer is a metal iron layer.
The display back plate is characterized in that the middle layer is a plastic reinforced layer; and/or the vertical projection of the middle layer on the supporting layer is coincident with the vertical projection of the heat conduction layer on the supporting layer.
The application also discloses a display module, wherein, include as above arbitrary show backplate.
The display module assembly, wherein, the display module assembly still includes viscose layer and display panel, the viscose layer is located on the heat-conducting layer of display module assembly, be used for with display panel bonds.
The display module is characterized in that the display panel is an organic light emitting diode display panel; and/or the adhesive layer is a glass foam adhesive layer.
The application also discloses a manufacturing method of the display module, which is used for manufacturing the display module, wherein the manufacturing method comprises the following steps:
stamping and forming the heat conduction layer, the middle layer and the supporting layer to obtain a display back plate;
and arranging an adhesive layer on the heat conducting layer of the display back plate, and arranging the display panel on the adhesive layer to obtain the display module.
Compared with the prior art, the embodiment of the invention has the following advantages:
the display back plate comprises a supporting layer, an intermediate layer and a heat conducting layer, wherein three layers of structures are directly formed together through one-step processing to form the complete display back plate, so that the structural strength of the display back plate is improved, and the display back plate also has the functions of heat conduction and heat dissipation; in the process of assembling the display module, the display panel can be directly fixed on the display back plate, heat can be conducted and dissipated through the display back plate, the normal work of the display module is maintained, the use of other parts is reduced, the assembling steps of the display module are simplified, the assembly is convenient and rapid, the time and the cost are saved, and the productivity and the efficiency are improved; in addition, no connecting gap is formed in the integrally formed display back plate, the assembled display module is more attractive in appearance, and the use experience of products is promoted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a partial cross-sectional view of a display backplane of the present invention;
FIG. 2 is a flow chart illustrating a process for manufacturing the display module according to the present invention;
FIG. 3 is a flow chart of a method for manufacturing a display module according to the present invention.
10, a display back plate; 11. a support layer; 111. a flat plate portion; 112. a side portion; 113. reinforcing ribs; 12. an intermediate layer; 13. a heat conductive layer; 14. surface coating; 20. an adhesive layer; 30. a display panel.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Display module assembly is equipped with aluminium-plastic panel collocation heating panel and center and is the laminating scheme of backplate among the prior art, need scribble colloid or trompil in the position of difference on the aluminium-plastic panel, fixes heating panel, center, or other parts, and the equipment step is various, consumes time long, and overall efficiency is on the low side.
Referring to fig. 1, in an embodiment of the present application, a display back plate 10 is disclosed, wherein the display back plate includes a supporting layer 11, an intermediate layer 12 and a heat conducting layer 13, the intermediate layer 12 is disposed on the supporting layer 11; the heat conducting layer 13 is arranged on the side of the intermediate layer 12 away from the supporting layer 11; the support layer 11, the intermediate layer 12 and the heat conduction layer 13 are formed by one-time punch forming.
The display back plate 10 disclosed by the application comprises a supporting layer 11, an intermediate layer 12 and a heat conducting layer 13, wherein the three-layer structure is directly formed together through one-step processing to form the complete display back plate 10, so that the structural strength of the display back plate 10 is improved, and the display back plate has the functions of heat conducting and heat radiating; in the process of assembling the display module, the display panel 30 can be directly fixed on the display back plate 10, heat can be conducted and dissipated through the display back plate 10, normal work of the display module is maintained, use of other parts is reduced, assembling steps of the display module are simplified, rapid assembling is facilitated, time and cost are saved, and productivity and efficiency are improved; in addition, no connecting gap exists on the integrally formed display back plate 10, the appearance of the assembled display module is more attractive, and the use experience of the product is promoted.
As shown in fig. 1, as an implementation manner of the present embodiment, it is disclosed that the supporting layer 11 includes a flat plate portion 111 and a side portion 112, and the intermediate layer 12 and the heat conductive layer 13 are sequentially disposed on the flat plate portion 111; the side part 112 is formed by bending the flat plate part 111 towards the side provided with the intermediate layer 12, the side part 112 is arranged around the heat conduction layer 13, and the end of the side part 112 facing away from the flat plate part 111 is higher than the plane of the heat conduction layer 13. The supporting layer 11 is used for supporting and protecting the internal structure of the display module, so the edge of the flat plate portion 111 is bent to form the side portion 112, and a concave accommodating groove is formed by the side portion 112 and the flat plate portion 111, no matter the middle layer 12 and the heat conduction layer 13 on the display back plate 10, or other parts of the display module, such as the display panel 30, are all arranged in the accommodating groove and protected by the supporting layer 11, thereby reducing the occurrence of collision of the internal structure of the display module in the using process and maintaining the normal operation of the display module.
In this embodiment, the side portion 112 can replace a middle frame of a conventional display module, and a blocking wall on the side surface of the display module is formed by setting the side portion 112 higher than the plane where the heat conduction layer 13 is located, so that the internal space of the display module can be separated from the environment, dust and water vapor in the air can be prevented from entering, the internal structure can be prevented from being corroded, and the service life of the display module can be prolonged; when the display panel 30 of the display module is assembled on the heat conduction layer 13 of the display backplane 10, the side portion 112 can also shield the side edge of the display panel 30, so that when the display panel 30 emits light, the side light is blocked by the side wall, and only the forward light is emitted, so that the display module can achieve a normal display effect.
In addition, the side part 112 is formed by bending the flat plate part 111, in the actual manufacturing process, the integrated supporting layer 11 is directly formed by sheet metal or rolling and stamping, the processing mode is simple, the forming speed is high, the efficiency is high, the structural strength of the whole manufactured supporting layer 11 is high, no connecting gap exists, the shape is stable, the supporting layer is not easy to deform, and the supporting layer can be used as a frame of the display module to play a good supporting role.
As shown in fig. 1, as another implementation manner of this embodiment, it is disclosed that a reinforcing rib 113 is disposed at one end of the side portion 112 away from the flat plate portion 111, and the reinforcing rib 113 is bent toward one side of the side portion 112 toward the heat conductive layer 13. Because the side portion 112 is used as a substitute structure of the middle frame, a certain structural strength is required to form a supporting frame of the display module together with the flat plate portion 111, so as to form an inner cavity with sufficient capacity for assembling other parts; the ribs 113 are provided to enhance the structural strength of the side portion 112, since the side portion 112 requires a certain supporting force to prevent excessive deformation even when it is subjected to a collision or pressure during transportation or use. The cross section of the reinforcing rib 113 can be in a zigzag shape or an arc shape, and the reinforcing rib 113 is bent by extending from one end of the side part 112 away from the flat plate part 111, so that the structure of one end of the side part 112 away from the flat plate part 111 is more stable, the bending or the folding is avoided, and a better supporting effect is achieved.
In the embodiment, the reinforcing rib 113 is formed by bending the side portion 112 and is connected with the side portion 112 into a whole, so that the whole structure is more stable; in the actual production process, the flat plate part 111, the side part 112 and the reinforcing ribs 113 can be machined and formed by using one workpiece, so that the structural stability of the whole supporting layer 11 is better, and the risk of deformation is reduced.
Specifically, in order to further ensure the shape stability of the display back plate 10, as another implementation manner of this embodiment, it is disclosed that the supporting layer 11 is a metal iron layer; the supporting layer 11 disclosed in this embodiment is formed by processing an iron plate, which can further increase the stability of the display back plate 10.
Specifically, as another implementation manner of this embodiment, it is disclosed that the heat conduction layer 13 is a metal iron layer. Firstly, when the display module is assembled, the display panel 30 is arranged on the heat conduction layer 13, heat is transferred through iron, and the heat conduction coefficient of the iron is large, so that the heat conduction effect is good, the heat on the display panel 30 can be quickly conducted, the display panel 30 is prevented from being overheated, and the damage is avoided; second, as described above, the iron plate has good mechanical properties, is not easily deformed, and can stably support the display panel 30.
In this embodiment, another reason for selecting the metal iron layer as the heat conducting layer 13 is that the metal iron layer can be made of the same material as the supporting layer 11, which can save raw material types and cost; moreover, the heat transfer coefficient of the heat conduction layer 13 is the same as that of the supporting layer 11, and in the use process, the heat on the heat conduction layer 13 is rapidly dispersed to the supporting layer 11, so that the heat dissipation is accelerated; in addition, the temperatures at various positions on the display back plate 10 tend to be the same, so that the deformation of the display back plate 10 caused by local temperature difference can be prevented.
Specifically, in order to stabilize the overall structure of the display back plate 10, as another implementation manner of the embodiment, it is disclosed that the middle layer 12 is a plastic reinforced layer. With the rapid development of the plastic industry and the continuous improvement of the plastic performance, the plastic part is more widely applied, in this embodiment, a plastic reinforcing layer made of sticky plastic, such as an epoxy resin plastic layer, a polyurethane plastic layer, a polyvinyl acetate plastic layer, etc., is selected, and the plastic reinforcing layer is in close contact with the heat conducting layer 13 and the supporting layer 11, so that the structural consistency of the display back plate 10 is stronger.
Secondly, in this embodiment, when the supporting layer 11 and the heat conducting layer 13 are made of the same material, the adhesion between the supporting layer 11 and the plastic reinforced layer is the same as the adhesion between the heat conducting layer 13 and the plastic reinforced layer, and the good stress interaction in the three-layer composite board makes the structure of the display back panel 10 more firm and stable, and the problem of unilateral cracking is not easily generated.
In this embodiment, through the mechanical property of the reinforcing structure, the total thickness of the heat conducting layer 13, the plastic reinforcing layer and the supporting layer 11 reaches 2 mm, and the use requirement of the display back plate 10 can be met, so that the manufactured display back plate 10 can also meet the condition of being light and thin, which is beneficial to producing a flat panel display device with smaller thickness, catering to the market trend, and improving the market competitiveness.
Specifically, in another embodiment of the present embodiment, it is disclosed that a perpendicular projection of the intermediate layer 12 on the support layer 11 coincides with a perpendicular projection of the thermally conductive layer 13 on the support layer 11. That is to say, the coverage area of the intermediate layer 12 on the supporting layer 11 is the same as that of the heat conducting layer 13, the surface of one side of the heat conducting layer 13 facing the supporting layer 11 completely adheres to the intermediate layer 12, and the intermediate layer 12 fills all the space between the heat conducting layer 13 and the supporting layer 11, so that the contact area between the intermediate layer 12 and the heat conducting layer 13 is increased to the maximum extent, and the connection strength between the heat conducting layer 13 and the intermediate layer 12 is enhanced; in addition, the intermediate layer 12 also equivalently fills the gap between the heat conduction layer 13 and the support layer 11, and the support force of the intermediate layer 12 to all positions on the heat conduction layer 13 is the same, so that the loss of local support force is avoided, and the local deformation of the heat conduction layer 13 in the use process is avoided.
In addition, the thermal conductivity of solid materials is clearly better than that of gases. After absorbing heat on the display panel 30, the heat conduction layer 13 needs to be conducted to the supporting layer 11 through the intermediate layer 12 and then is transmitted to ambient air, so that heat dissipation is achieved, the intermediate layer 12 is full of the space between the heat conduction layer 13 and the supporting layer 11, heat of the heat conduction layer 13 is quickly conducted to the supporting layer 11 through the solid intermediate layer 12, heat dissipation speed is accelerated, and heat dissipation effect of the display back plate 10 is improved.
As shown in fig. 1, as another implementation manner of this embodiment, it is disclosed that a surface coating 14 formed by color coating surface treatment is provided on a surface of the flat plate portion 111 facing away from the intermediate layer 12. One side of the flat plate portion 111 is provided with the intermediate layer 12 and the heat conduction layer 13, and then the display panel 30 may be provided, and the surface opposite to the intermediate layer 12 is the backlight outer surface of the display module, and is always exposed to the environment when being transported and used, so the risk of damage is high, and the surface coating 14 is formed on the surface of the flat plate portion 111, for example: the antistatic coating, the waterproof coating, the heat-resistant coating, the antioxidant coating and the like can enhance the surface performance of the display back plate 10, reduce the risk of damage to the backlight surface of the display back plate 10, and prolong the service life of the display back plate 10; in addition, the appearance of the display back plate 10 can be changed by selecting the color of the coating, so that the color matching of the display back plate 10 and the environment is more harmonious.
The color coating is selected in this embodiment because the color coating is a processing method of coating a coating on a pretreated substrate by a roll coating method, and the upper surface coating 14 can be quickly coated on the flat plate portion 111, so that the color coating is convenient to process and form, good in coating effect, low in processing cost, good in practicability and good in durability.
As another embodiment of the present application, a display module is disclosed, which includes the display back plate 10 as described above. The flow chart of the production process is shown in FIG. 2.
Specifically, as shown in fig. 2 (c), as an implementation manner of this embodiment, it is disclosed that the display module further includes an adhesive layer 20 and a display panel 30, where the adhesive layer 20 is disposed on the heat conduction layer 13 of the display module and is used for bonding with the display panel 30. The display panel 30 is fixed on the display back plate 10 by means of gluing, and the display back plate is simple and convenient to operate and firm in connection. In this embodiment, the adhesive layer 20 may be a glass foam adhesive layer, a glass adhesive layer, a solid adhesive layer, a double-sided adhesive layer, and the like, and the display panel 30 includes an OLED display panel 30, a Mini LED display panel 30, a Micro LED display panel 30, and the like.
In actual production and processing, the display module disclosed in this embodiment only includes display back plate 10, adhesive layer 20 and display panel 30, and simple structure, spare part are few, and the equipment is convenient, compares in traditional display module assembly, and production cycle is short, and the cost is lower.
As shown in fig. 2 and fig. 3, as another embodiment of the present application, a method for manufacturing a display module is disclosed, which is used for manufacturing the display module, and includes:
s100, as shown in fig. 2 (a) to (b), press-forming the heat conductive layer 13, the intermediate layer 12, and the support layer 11 to obtain the display back plate 10;
s200, as shown in fig. 2 (c), an adhesive layer 20 is disposed on the heat conduction layer 13 of the display back plate 10, and the display panel 30 is disposed on the adhesive layer 20, so as to obtain the display module.
In this embodiment, by directly processing and using the composite multilayer display backplane 10, the traditional structures such as the middle frame and the heat dissipation plate are omitted, the manufacturing process is simplified, the operation requirement in the production process is reduced, and the product yield is favorably controlled.
In summary, the present application discloses a display back plate 10, which includes a supporting layer 11, an intermediate layer 12 and a heat conducting layer 13, wherein the intermediate layer 12 is disposed on the supporting layer 11; the heat conducting layer 13 is arranged on the side of the intermediate layer 12 away from the supporting layer 11; the support layer 11, the intermediate layer 12 and the heat conduction layer 13 are formed by one-time punch forming. The display back plate 10 disclosed by the application comprises a supporting layer 11, an intermediate layer 12 and a heat conducting layer 13, wherein the three-layer structure is directly formed together through one-step processing to form the complete display back plate 10, so that the structural strength of the display back plate 10 is improved, and the display back plate has the functions of heat conducting and heat radiating; in the process of assembling the display module, the display panel 30 can be directly fixed on the display back plate 10, heat can be conducted and dissipated through the display back plate 10, normal work of the display module is maintained, use of other parts is reduced, assembling steps of the display module are simplified, rapid assembling is facilitated, time and cost are saved, and productivity and efficiency are improved; in addition, no connecting gap exists on the integrally formed display back plate 10, the appearance of the assembled display module is more attractive, and the use experience of the product is promoted.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that, the present invention takes the OLED display module as an example to describe the specific structure and the operation principle of the present invention, but the application of the present invention is not limited to the OLED display module, and the present invention can also be applied to the production and use of other similar workpieces.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A display backplane, comprising:
a support layer;
the middle layer is arranged on the supporting layer; and
the heat conduction layer is arranged on one side, away from the supporting layer, of the middle layer;
the supporting layer, the middle layer and the heat conduction layer are formed through one-time stamping.
2. The display backplane of claim 1, wherein the support layer comprises a flat plate portion and side portions, the middle layer and the thermally conductive layer being disposed on the flat plate portion in that order; the side part is formed by bending the side part towards one side provided with the middle layer on the flat plate part, the side part is arranged around the heat conduction layer, and one end of the side part, which is far away from the flat plate part, is higher than the plane where the heat conduction layer is located.
3. The display backplane of claim 2, wherein an end of the side portion facing away from the flat plate portion is provided with a rib, and the rib is bent toward the side portion toward a side of the heat conductive layer.
4. The display backplane of claim 2, wherein a surface of the flat plate portion facing away from the intermediate layer is provided with a surface coating formed by a color-coated surface treatment.
5. The display backplane of claim 1, wherein the support layer is a metallic iron layer; and/or the heat conduction layer is a metal iron layer.
6. The display backplane of claim 1, wherein the intermediate layer is a plastic reinforcement layer; and/or the presence of a gas in the gas,
the vertical projection of the middle layer on the supporting layer is coincident with the vertical projection of the heat conduction layer on the supporting layer.
7. A display module comprising the display backplane of any one of claims 1 to 6.
8. The display module assembly of claim 7, further comprising an adhesive layer and a display panel, wherein the adhesive layer is disposed on the heat conducting layer of the display module assembly and is configured to be adhered to the display panel.
9. The display module of claim 8, wherein the display panel is an organic light emitting diode display panel; and/or the adhesive layer is a glass foam adhesive layer.
10. A method for manufacturing a display module according to any one of claims 7 to 9, comprising:
stamping and forming the heat conduction layer, the middle layer and the supporting layer to obtain a display back plate;
and arranging an adhesive layer on the heat conducting layer of the display back plate, and arranging the display panel on the adhesive layer to obtain the display module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111036337.4A CN113870728A (en) | 2021-09-03 | 2021-09-03 | Display back plate, display module and manufacturing method of display module |
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| CN202111036337.4A CN113870728A (en) | 2021-09-03 | 2021-09-03 | Display back plate, display module and manufacturing method of display module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023130508A1 (en) * | 2022-01-10 | 2023-07-13 | 深圳市华星光电半导体显示技术有限公司 | Oled display module and oled display apparatus |
Citations (7)
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Application publication date: 20211231 |