CN116580643A - Manufacturing method of curved surface display module, curved surface display module and curved surface display screen - Google Patents
Manufacturing method of curved surface display module, curved surface display module and curved surface display screen Download PDFInfo
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- CN116580643A CN116580643A CN202310556142.5A CN202310556142A CN116580643A CN 116580643 A CN116580643 A CN 116580643A CN 202310556142 A CN202310556142 A CN 202310556142A CN 116580643 A CN116580643 A CN 116580643A
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- glass cover
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- bending
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000011521 glass Substances 0.000 claims abstract description 179
- 238000005452 bending Methods 0.000 claims abstract description 96
- 238000005516 engineering process Methods 0.000 claims abstract description 55
- 238000000034 method Methods 0.000 claims abstract description 54
- 230000008569 process Effects 0.000 claims abstract description 35
- 238000013003 hot bending Methods 0.000 claims abstract description 32
- 239000000853 adhesive Substances 0.000 claims description 18
- 230000001070 adhesive effect Effects 0.000 claims description 18
- 230000003287 optical effect Effects 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910021389 graphene Inorganic materials 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 9
- 239000005357 flat glass Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000003848 UV Light-Curing Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/04—Bending or folding of plates or sheets
-
- 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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Mechanical Engineering (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application provides a manufacturing method of a curved surface display module, the curved surface display module and a curved surface display screen, wherein the method comprises the following steps: bending an initial glass cover plate according to a target shape by a hot bending technology to obtain a preheated bent glass cover plate, wherein the preheated bent glass cover plate is formed by connecting at least two planar glass cover plates; attaching the preheated bent glass cover plate to a planar touch screen and a planar display module through a planar cover plate generation process to obtain an attached glass cover plate touch display module; and attaching the glass cover plate touch display module to the bending base through a cold bending technology, wherein for any two adjacent planar glass cover plates in the preheating bent glass cover plate, a first angle formed by the bending base is smaller than a second angle formed by the any two adjacent planar glass cover plates. The application solves the problems of difficult operation and low yield in the hot bending technology and solves the problem of stress rebound in the cold bending technology.
Description
Technical Field
The application relates to the technical field of display screens, in particular to a manufacturing method of a curved surface display module, a curved surface display module and a curved surface display screen.
Background
Along with the intelligent development of automobiles, the application of the vehicle-mounted display screen is more and more, the vehicle-mounted display screen design sequentially shows multi-screen designs such as two continuous screens, three continuous screens and the like, and the multi-continuous screen design is gradually developed from planar arrangement to curved arrangement due to the integrity of automobile interiors, and the current curved surface shape has structures such as V shape, Z shape, U shape and the like. Aiming at the current vehicle-mounted curved surface display module, two main manufacturing methods are adopted at present:
one is a cold bending technology, namely a glass cover plate of a touch display module is of a planar structure before the assembly of the module, the glass cover plate is still of a planar structure after the touch screen lamination and the display module lamination are completed, and finally, the planar touch display module is fixed on a curved surface base, and the glass cover plate of the touch display module is fixed through the shape of the curved surface base to form a curved surface.
One is a hot bending technology, namely, a curved surface cover plate is formed by a touch display module cover plate through a high Wen Wanshe, then the curved surface cover plate is attached to a touch screen and a display module, and finally the touch display module cover plate is fixed on a base with the same curved surface structure.
The two manufacturing methods have advantages and disadvantages, and for the cold bending technology, the production process is simple, but the stress is large after the base is assembled, and the rebound problem can occur; for the hot bending technology, the glass cover plate is firstly molded, so that the problem of stress rebound does not exist, but the problems of high process difficulty, low efficiency, low yield and high cost exist because the surface polishing of the cover plate, the printing of cover plate ink, the attaching of the touch screen and the display module are all completed under the curved surface cover plate structure.
Disclosure of Invention
The application provides a manufacturing method of a curved surface display module, the curved surface display module and a curved surface display screen, and mainly aims to solve the problems of stress rebound in cold bending technology and high process difficulty, low yield and high cost in hot bending technology.
In a first aspect, an embodiment of the present application provides a method for manufacturing a curved display module, including:
bending an initial glass cover plate according to a target shape by a hot bending technology to obtain a preheated bent glass cover plate, wherein the preheated bent glass cover plate is formed by connecting at least two planar glass cover plates;
attaching the preheated bent glass cover plate to a planar touch screen and a planar display module through a planar cover plate generation process to obtain an attached glass cover plate touch display module;
and attaching the glass cover plate touch display module to the bending base through a cold bending technology, wherein for any two adjacent planar glass cover plates in the preheating bent glass cover plate, a first angle formed by the bending base is smaller than a second angle formed by the any two adjacent planar glass cover plates.
Further, the second angle formed by any two adjacent flat glass cover plates is larger than a preset angle.
Further, the preset angle is 160.
Further, the attaching the glass cover plate touch display module to the bending base through the cold bending technology comprises the following steps:
adhering adhesive to the bending base;
placing the glass cover plate touch display module on the bending base;
and bending the glass cover plate touch display module again through a cold bending technology, so that the glass cover plate touch display module is attached to the bending base.
Further, the process for generating the planar cover plate is used for attaching the preheated bent glass cover plate to the planar touch screen and the planar display module to obtain an attached glass cover plate touch display module, and the process comprises the following steps:
attaching the planar touch screen to the planar glass cover plate of the pre-heated bent glass cover plate through a planar cover plate generation process;
through the planar cover plate generation process, the planar display module is attached to the planar touch screen of the planar glass cover plate.
Further, the bonding the planar touch screen to the planar glass cover plate of the pre-heated bent glass cover plate through the planar cover plate generation process includes:
attaching optical adhesive to one surface of the planar touch screen;
and placing the planar touch screen with the optical adhesive and the preheated bent glass cover plate into a touch screen attaching jig for attaching.
Further, the process for generating the plane cover plate is characterized in that the plane display module is attached to the plane touch screen of the plane glass cover plate, and the process comprises the following steps:
attaching optical adhesive to the other surface of the planar touch screen;
and placing the flat display module into a touch module attaching jig for attaching to obtain the glass cover plate touch display module.
Further, the bending the initial glass cover plate according to the target shape by a hot bending technology to obtain a pre-heated bent glass cover plate comprises:
placing the initial glass cover plate into a graphene die with the target shape, and placing the graphene die into hot bending processing equipment;
and heating and then cooling the graphene die through the hot bending processing equipment to obtain the preheated bent glass cover plate.
In a second aspect, an embodiment of the present application provides a curved surface display module, where the curved surface display module is manufactured by using the manufacturing method of the curved surface display module as set forth in any one of claims 1 to 8.
In a third aspect, an embodiment of the present application provides a curved display screen, where the curved display screen includes a curved display module as provided in the second aspect.
According to the manufacturing method of the curved surface display module, the initial glass cover plate is bent according to the target shape through the hot bending technology to obtain the preheated bent glass cover plate with a certain angle, and as the preheated bent glass cover plate is composed of at least two planar glass cover plates, when the preheated bent glass cover plate is attached to the planar touch screen and the planar display module, the planar cover plate is attached to a planar structure through a planar cover plate generating technology instead of the curved surface structure in the traditional hot bending technology, the problems of high technological difficulty, low efficiency, low yield and high cost in the traditional hot bending technology can be solved; and the glass cover plate touch display module at the second angle is attached to the bending base through the cold bending technology, and because the glass cover plate touch display module has a certain angle, when the glass cover plate touch display module is attached to the bending base, the glass cover plate touch display module is bent to the second angle again through the cold bending technology, namely, the glass cover plate touch display module is bent to the first angle from the second angle, and in the traditional cold bending technology, the glass cover plate touch display module is bent to the second angle from the plane, the bending degree in the cold bending technology is smaller, and the stress rebound phenomenon cannot occur, so that the stress rebound problem in the traditional cold bending technology is solved.
Drawings
Fig. 1 is a flowchart of a method for manufacturing a curved display module according to an embodiment of the present application;
FIG. 2 is a schematic view of the shape of a V-shaped pre-heated bent glass cover plate according to an embodiment of the application;
FIG. 3 is a schematic view of the shape of a Z-shaped pre-heated bent glass cover sheet in accordance with an embodiment of the present application;
FIG. 4 is a schematic view of the shape of a V-shaped curved base according to an embodiment of the present application;
FIG. 5 is a schematic view of the shape of a Z-curved base in an embodiment of the application;
fig. 6 is a schematic structural diagram of a V-shaped curved surface display module according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a Z-type curved surface display module according to an embodiment of the present application.
The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Reference numerals:
110, preheating a bent glass cover plate; 111, a planar glass cover plate;
120, a planar touch screen; 130, a flat display module;
140, bending the base; 150, a first angle;
160, a second angle; 170, adhesive glue;
180, optical cement.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplify the description, and do not indicate or imply that the device or element being 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.
In order to enable those skilled in the art to better understand the solution of the present application, the following description will make clear and complete descriptions of the technical solution of the present application in the embodiments of the present application with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the embodiment of the application, at least two refers to two or more; plural means two or more. In the description of the present application, the words "first," "second," "third," and the like are used solely for the purpose of distinguishing between descriptions and not necessarily for the purpose of indicating or implying a relative importance or order. Furthermore, the terms "first," "second," and the like, 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 one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, the terms "comprising," "including," "having," and variations thereof herein mean "including but not limited to," unless expressly specified otherwise.
Fig. 1 is a flowchart of a method for manufacturing a curved display module according to an embodiment of the present application, as shown in fig. 1, where the method includes:
s110, bending an initial glass cover plate according to a target shape by a hot bending technology to obtain a pre-heated bent glass cover plate 110, wherein the pre-heated bent glass cover plate 110 is formed by connecting at least two plane glass cover plates 111;
firstly, each component required by the curved surface display module is provided, including an initial glass cover plate, a planar touch screen 120, a planar display module 130 and a bending base 140, wherein the initial glass cover plate is a common planar glass cover plate 111 which can be rectangular, trapezoid and the like, and the initial glass cover plate is bent according to a target shape by a hot bending technology to obtain a pre-heated bent glass cover plate 110 with a certain bending angle.
The target shape is the shape presented by the final curved surface display module, in this embodiment, the target shape may be V-shape, Z-shape, W-shape, etc., that is, the pre-heated curved glass cover plate 110 obtained by bending according to the target shape has a curved surface structure with a certain angle. The pre-heated bent glass sheet 110 may be regarded as being composed of at least two flat glass sheets 111, and the number of the flat glass sheets 111 may be determined according to practical situations, which is not particularly limited in this embodiment.
For example, fig. 2 is a schematic view of the shape of a V-shaped pre-heated bent glass cover plate 110 according to the embodiment of the present application, as shown in fig. 2, when the target shape is V-shaped, the pre-heated bent glass cover plate 110 is also V-shaped, and the pre-heated bent glass cover plate 110 may be regarded as being composed of two flat glass cover plates 111; fig. 3 is a schematic view of the shape of the Z-type pre-heated bent glass cover sheet 110 according to the embodiment of the present application, and as shown in fig. 3, when the target shape is Z-type, the pre-heated bent glass cover sheet 110 is also Z-type, and the pre-heated bent glass cover sheet 110 may be regarded as being composed of three planar glass cover sheets 111.
The hot bending technique is a process of heating the starting glass cover plate to a predetermined bending temperature of the glass cover plate and bending the starting glass cover plate, and the predetermined bending temperature is generally referred to as a yield point of the glass cover plate.
S120, bonding the preheated bent glass cover plate 110 with the planar touch screen 120 and the planar display module 130 through a planar cover plate generation process to obtain a bonded glass cover plate touch display module;
then, the pre-heated bent glass cover plate 110 is laminated with the planar touch screen 120 and the planar display module 130 in sequence through a planar cover plate generating process, specifically, because the pre-heated bent glass cover plate 110 is composed of the planar glass cover plate 111, when being laminated with the planar touch screen 120 and the planar display module 130, the pre-heated bent glass cover plate 110 can be laminated on the planar glass cover plate 111, rather than the curved surface structure in the traditional hot bending technology, so that the problems of high process difficulty, low efficiency, low yield and high cost in the traditional hot bending technology can be solved.
And S130, attaching the glass cover plate touch display module to the bending base 140 through a cold bending technology, wherein for any two adjacent planar glass cover plates 111 in the preheating bent glass cover plate 110, a first angle 150 formed by the bending base 140 is smaller than a second angle 160 formed by the any two adjacent planar glass cover plates 111.
After the pre-heated bent glass cover plate 110 is attached to the planar touch screen 120 and the planar display module 130, a glass cover plate touch display module is obtained, and it is easy to understand that an angle formed by the glass cover plate touch display module is the same as a second angle 160 formed by the pre-heated bent glass cover plate 110, so that an angle of the violent cover plate touch display module is larger than a first angle 150 formed by the bending base 140.
Because glass apron touch-control display module assembly itself has certain angle, when laminating glass apron touch-control display module assembly and crooked base 140, only need be through the cold bending technique bending to second angle 160 again with glass apron touch-control display module assembly, the glass apron touch-control display module assembly is crooked to first angle 150 by second angle 160 promptly, and in traditional cold bending technique, glass apron touch-control display module assembly is from the plane bending to second angle 160, the bending degree in the cold bending technique is less in this embodiment, stress rebound phenomenon can not appear, consequently stress rebound problem in the traditional cold bending technique has been solved to this embodiment.
It should be noted that, the cold bending technology generally refers to bending the glass cover plate touch display module by using mechanical equipment under a cold state of the glass cover plate touch display module by mechanical force.
Fig. 4 is a schematic diagram of the shape of the V-shaped bending base 140 according to the embodiment of the present application, and referring to fig. 2 and 4, it can be seen that when the V-shaped display module is required, the bending base 140 also presents a V-shape correspondingly, and the first angle 150 formed by the bending base 140 is shown in fig. 4, and when the glass cover touch display module is required to be attached to the bending base 140, the glass cover touch display module is bent again by using the cold bending technology, so that the glass cover touch display module is displaced by the first angle 150 from the second angle 160, and the stress rebound problem can be reduced.
Fig. 5 is a schematic diagram of the shape of the Z-shaped bending base 140 according to the embodiment of the present application, and referring to fig. 3 and 5, it can be seen that when the Z-shaped display module is required, the bending base 140 also presents a Z-shape correspondingly, and the first angle 150 formed by the bending base 140 is shown in fig. 5, and when the glass cover touch display module is required to be attached to the bending base 140, the glass cover touch display module is bent again by using the cold bending technology, so that the glass cover touch display module is displaced by the first angle 150 from the second angle 160, and the stress rebound problem can be reduced. According to the manufacturing method of the curved surface display module, the initial glass cover plate is bent according to the target shape through the hot bending technology to obtain the pre-heated bent glass cover plate 110 with a certain angle, and as the pre-heated bent glass cover plate 110 is composed of at least two planar glass cover plates 111, when being bonded with the planar touch screen 120 and the planar display module 130, the planar cover plate generating technology is adopted to bond on a planar structure instead of the curved surface structure in the traditional hot bending technology, the manufacturing method can solve the problems of high process difficulty, low efficiency, low yield and high cost in the traditional hot bending technology; and the glass cover plate touch display module of the second angle 160 is attached to the bending base 140 through the cold bending technology, and because the glass cover plate touch display module has a certain angle, when the glass cover plate touch display module is attached to the bending base 140, the glass cover plate touch display module is bent to the second angle 160 again through the cold bending technology, namely, the glass cover plate touch display module is bent to the first angle 150 from the second angle 160, in the traditional cold bending technology, the glass cover plate touch display module is bent to the second angle 160 from a plane, in the embodiment, the bending degree in the cold bending technology is smaller, and the stress rebound phenomenon cannot occur, so that the embodiment solves the problem of the stress rebound in the traditional cold bending technology.
In some embodiments, the second angle 160 formed by any two adjacent flat glass cover plates 111 is greater than a predetermined angle.
In the embodiment of the present application, the second angle 160 is larger than a preset angle, the size of the preset angle can be determined according to actual needs, in general, the preset angle is an obtuse angle, and the preset angle is selected to satisfy the following requirements:
the heat bending glass cover plate is close to the plane, so that the heat bending glass cover plate can be attached to the plane touch screen 120 and the plane display module 130 through a plane cover plate generation process, and stress rebound cannot be generated when the glass cover plate touch display module is attached to the bending base 140.
For example, the preset angle may be 140 degrees, 145 degrees, 150 degrees, 155 degrees, 160 degrees, etc., and may be specifically determined according to practical situations, which is not specifically limited in the embodiment of the present application.
As an embodiment, the preset angle is 160.
Through multiple experiments, the preset angle is 160 degrees, and when the second angle 160 is larger than 160 degrees, the method is most suitable for the operation of the plane cover plate generating process, and the stress rebound phenomenon is minimum.
In some embodiments, in step S110, the bending the initial glass cover plate according to the target shape by using a hot bending technology to obtain a pre-heated bent glass cover plate 110 includes:
s111, placing the initial glass cover plate into a graphene die with the target shape, and placing the graphene die into hot bending processing equipment;
and S112, heating and then cooling the graphene die through the hot bending processing equipment to obtain the pre-heated bent glass cover plate 110.
In the specific implementation process, the initial glass cover plate is firstly placed into a graphene mould designed according to the target shape, then the graphene mould is placed into hot bending processing equipment, the graphene mould is softened by the hot bending processing equipment and then is attached to the mould, and the graphene mould is gradually cooled and shaped by the hot bending processing equipment to form a preheating bent glass cover plate 110 with an angle of more than 160 degrees, such as a V shape, a Z shape and the like.
In general, the heating control curve is: about 30 minutes of 0-300 ℃, about 25 minutes of 300-500 ℃, about 30 minutes of 500-700 ℃ and 10-20 minutes of heat preservation time. The cooling curve is as follows: the temperature reduction is from 700 ℃ to 500 ℃ for about 40 minutes, from 500 ℃ to 300 ℃ for about 30 minutes, and from 300 ℃ to normal temperature for 50 minutes.
In some embodiments, in step S120, the bonding between the preheated bent glass cover plate 110 and the planar touch screen 120, the planar display module 130, and the bonded glass cover plate touch display module is obtained by a planar cover plate generating process, which includes:
s121, attaching the planar touch screen 120 to the planar glass cover plate 111 of the pre-heated bent glass cover plate 110 through a planar cover plate generation process;
s122, through a plane cover plate generation process, the plane display module 130 is attached to the plane touch screen 120 of the plane glass cover plate 111.
In this embodiment, the planar touch screen 120 is attached to the planar glass cover 111 of the pre-heated bent glass cover 110 by a planar cover generating process, and then the planar display module 130 is attached to the planar glass cover 111 to which the planar touch screen 120 has been attached.
In this embodiment, when the flat touch screen 120 and the flat display module 130 are bonded, the flat glass cover 111 of the pre-heated bent glass cover 110 is bonded instead of the curved surface structure in the conventional hot bending technology, so that the problems of high process difficulty, low efficiency, low yield and high cost in the conventional hot bending technology can be solved.
In one embodiment, in step S121, the bonding the planar touch screen 120 to the planar glass cover 111 of the pre-heated bent glass cover 110 through the planar cover generating process includes:
attaching optical adhesive 180 to one surface of the planar touch screen 120;
and placing the planar touch screen 120 with the optical cement 180 and the preheated bent glass cover plate 110 into a touch screen laminating jig for lamination.
In a specific implementation process, after the planar touch screen 120 is cleaned, the optical adhesive 180 is attached to the attaching surface on one surface of the planar touch screen 120 in a manual or machine operation mode, the planar touch screen 120 attached with the optical adhesive 180 is placed into a touch screen attaching jig, and then the preheated bent glass cover plate 110 is placed into the touch screen attaching jig for attaching alignment, and after the alignment is finished, the glass cover plate is placed into a full attaching device for vacuum attaching operation.
Wherein, the bonding pressure is 0.3-0.4Mpa, the temperature is 50-80 ℃, the time is 180-240 seconds, the product after bonding is defoamed, the defoamed product is 0.3-0.5Mpa, the temperature is 30-80 ℃, the time is 15-30 minutes, the defoamed product is subjected to UV curing operation, the UV curing condition, and the light volume is more than 3000mj/cm 2 。
In one embodiment, in step S122, the flat display module 130 is attached to the flat touch screen 120 of the flat glass cover 111 through the flat cover generating process, and includes:
attaching optical adhesive 180 to the other surface of the planar touch screen 120;
and placing the flat display module 130 into a touch module attaching jig for attaching to obtain the glass cover plate touch display module.
In a specific implementation process, the optical adhesive 180 is attached to the other surface of the planar touch screen 120 through UV inspection, the tested planar display module 130 is placed into the touch module attaching jig, then the product with the attached optical adhesive 180 is placed into the touch module attaching jig, and then the product is placed into the full attaching equipment for vacuum attaching operation.
Wherein the bonding pressure is 0.3-0.4Mpa, the temperature is 30-50 ℃, the time is 150-200 seconds, the products after bonding are subjected to defoaming operation, the defoaming is 0.3-0.5Mpa, the temperature is 30-50 ℃, the time is 15-30 minutes, the products after defoaming are subjected to UV curing operation, the UV curing condition is adopted, and the light volume is more than 2000mj/cm 2 。
In some embodiments, in step S130, the attaching the glass cover touch display module to the curved base 140 by using a cold bending technology includes:
s131, attaching adhesive 170 on the bending base 140;
s132, placing the glass cover plate touch display module on the bending base 140;
s133, bending the glass cover plate touch display module again through a cold bending technology, so that the glass cover plate touch display module is attached to the bending base 140.
In a specific implementation process, adhesive glue is attached or adhesive glue is adhered to four sides of the bending base 140, and then the glass cover plate touch display module is placed on the bending base 140 according to requirements, because the glass cover plate touch display module has a certain angle, when the glass cover plate touch display module is attached to the bending base 140, the glass cover plate touch display module is bent to a second angle 160 again only through a cold bending technology, namely, the glass cover plate touch display module is bent to a first angle 150 from the second angle 160, in the traditional cold bending technology, the glass cover plate touch display module is bent to the second angle 160 from a plane, and the bending degree in the cold bending technology is small in the embodiment, so that the stress rebound phenomenon cannot occur, and the problem of stress rebound in the traditional cold bending technology is solved in the embodiment.
The embodiment of the application also provides a curved surface display module, which is manufactured by the curved surface display module manufacturing method.
Fig. 6 is a schematic structural diagram of a V-shaped curved surface display module according to an embodiment of the present application, and a manufacturing process of the V-shaped curved surface display module can be seen in combination with fig. 2, fig. 4 and fig. 6. Fig. 7 is a schematic structural diagram of a Z-shaped curved surface display module according to an embodiment of the present application, and as shown in fig. 7, a manufacturing process of the Z-shaped curved surface display module can be seen in combination with fig. 3, 5 and 7.
The specific manufacturing process of the curved surface display module in the embodiment of the present application is the same as that of the above embodiment, and reference is made to the above embodiment for details, which are not repeated here.
The embodiment of the application also provides a curved surface display screen, which comprises the curved surface display module, can be a vehicle-mounted display screen or a computer display screen, and can be specifically determined according to actual conditions, and the embodiment is not repeated here.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art 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 and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. The manufacturing method of the curved surface display module is characterized by comprising the following steps:
bending an initial glass cover plate according to a target shape by a hot bending technology to obtain a preheated bent glass cover plate, wherein the preheated bent glass cover plate is formed by connecting at least two planar glass cover plates;
attaching the preheated bent glass cover plate to a planar touch screen and a planar display module through a planar cover plate generation process to obtain an attached glass cover plate touch display module;
and attaching the glass cover plate touch display module to the bending base through a cold bending technology, wherein for any two adjacent planar glass cover plates in the preheating bent glass cover plate, a first angle formed by the bending base is smaller than a second angle formed by the any two adjacent planar glass cover plates.
2. The method for manufacturing a curved surface display module according to claim 1, wherein the second angle formed by any two adjacent flat glass cover plates is larger than a preset angle.
3. The method of claim 2, wherein the predetermined angle is 160.
4. The method for manufacturing a curved display module according to claim 1, wherein the attaching the glass cover plate touch display module to the curved base by using a cold bending technology comprises:
adhering adhesive to the bending base;
placing the glass cover plate touch display module on the bending base;
and bending the glass cover plate touch display module again through a cold bending technology, so that the glass cover plate touch display module is attached to the bending base.
5. The method for manufacturing a curved surface display module according to claim 1, wherein the bonding the preheated glass cover plate with the planar touch screen and the planar display module by the planar cover plate generating process to obtain a bonded glass cover plate touch display module comprises the following steps:
attaching the planar touch screen to the planar glass cover plate of the pre-heated bent glass cover plate through a planar cover plate generation process;
through the planar cover plate generation process, the planar display module is attached to the planar touch screen of the planar glass cover plate.
6. The method for manufacturing a curved display module according to claim 5, wherein the attaching the planar touch screen to the planar glass cover plate of the pre-heated curved glass cover plate by the planar cover plate generating process comprises:
attaching optical adhesive to one surface of the planar touch screen;
and placing the planar touch screen with the optical adhesive and the preheated bent glass cover plate into a touch screen attaching jig for attaching.
7. The method for manufacturing a curved surface display module according to claim 6, wherein the planar display module is attached to a planar touch screen of the planar glass cover plate by a planar cover plate generating process, and the method comprises the following steps:
attaching optical adhesive to the other surface of the planar touch screen;
and placing the flat display module into a touch module attaching jig for attaching to obtain the glass cover plate touch display module.
8. The method for manufacturing a curved surface display module according to claim 1, wherein the bending the initial glass cover plate according to the target shape by the hot bending technology to obtain the pre-heated bent glass cover plate comprises:
placing the initial glass cover plate into a graphene die with the target shape, and placing the graphene die into hot bending processing equipment;
and heating and then cooling the graphene die through the hot bending processing equipment to obtain the preheated bent glass cover plate.
9. A curved surface display module, characterized in that the curved surface display module is manufactured by the manufacturing method of the curved surface display module according to any one of claims 1 to 8.
10. A curved display screen comprising the curved display module of claim 9.
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| CN202310556142.5A CN116580643A (en) | 2023-05-16 | 2023-05-16 | Manufacturing method of curved surface display module, curved surface display module and curved surface display screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111857449A (en) * | 2020-07-30 | 2020-10-30 | 汕头超声显示器技术有限公司 | Bent capacitive touch screen and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111857449A (en) * | 2020-07-30 | 2020-10-30 | 汕头超声显示器技术有限公司 | Bent capacitive touch screen and manufacturing method thereof |
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