CN113031332A - Display module and preparation method and application thereof - Google Patents
Display module and preparation method and application thereof Download PDFInfo
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- CN113031332A CN113031332A CN202110302413.5A CN202110302413A CN113031332A CN 113031332 A CN113031332 A CN 113031332A CN 202110302413 A CN202110302413 A CN 202110302413A CN 113031332 A CN113031332 A CN 113031332A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/007—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
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Abstract
The invention provides a display module and a preparation method and application thereof; the display module comprises a liquid crystal display screen and a frame body, and the liquid crystal display screen is connected with the frame body through UV glue; the UV glue is adopted to replace the traditional foam cotton glue and is used for bonding the liquid crystal display screen and the frame body, so that the display module can be subjected to glue dispensing preparation through an automatic precise glue dispenser; the finally obtained display module not only meets the requirements of the bonding strength, the elongation at break and the shore hardness of the liquid crystal display screen, but also can effectively avoid the problem that the screen body of the display module is fragile in the assembling and repairing processes because the adopted UV glue has certain buffering elasticity, and has important research value.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a display module and a preparation method and application thereof.
Background
With the popularization of the frameless full-lamination LCD television, the constraint of the frame is eliminated, the higher screen occupation ratio is realized, and the real 100% full-screen television is still the very important technical development trend of the frameless full-lamination television at present. The technical development of the BM area (Black matrix, non-display area) of the television liquid crystal display screen from 7.9mm to 5.9mm to 3.5mm to 0.9mm lays a new foundation for the technical development of the full-face screen, the design of the television frame is narrower and narrower, and a new challenge is provided for the bonding of the display screen and the frame.
At present, a display screen of a frameless LCD television in the television industry is generally attached to a metal or plastic middle frame by using a black PU double-sided foam adhesive tape, the minimum width is generally 3mm, and the thickness is generally 1.26 mm. The width of the adhesive tape is too narrow, the die cutting difficulty is high, the requirement on the bonding strength cannot be met, the screen is easy to fall off, crack and the like after being attached to the middle frame, the thickness of the adhesive tape is too thin, and the four sides of the screen are easy to have light leakage, light leakage and the like.
In order to effectively solve the above problems, there are many related studies and reports. CN104698664A discloses an LCD liquid crystal display module with a touch screen, which includes an outer frame, and a back frame, a backlight module, an LCD display screen and a touch screen which are arranged in the outer frame and are sequentially stacked; the LCD display screen and the touch screen are bonded together through foam adhesive, the foam adhesive is placed on the step surface of the outer frame and the side wall of the back frame, and one end of the foam adhesive extends to the LCD display screen; a plurality of notches are sequentially formed in the foam adhesive along the length direction of the outer frame, and the notches are located above the side wall of the back frame. The LCD module not only keeps the advantages of thinner thickness of the whole machine, low cost, convenient maintenance after sale and the like in the prior art, but also has good antistatic performance. CN112349217A discloses a panel display module and a manufacturing method thereof, the panel display module includes a display screen, a steel-plastic back plate for bearing the display screen, and a colloid for connecting the display screen and the steel-plastic back plate; the steel-plastic back plate comprises a thick structure located in the middle and used for bearing the display screen and thin structures located on two sides of the thick structure, and the end of each thin structure is provided with a forming structure for positioning the display screen. The panel display module makes full use of the self-strength characteristic of the steel-plastic back plate, supports the display screen through the steel-plastic back plate, reduces the cost of a stamping and stretching process adopting the back plate, is bent and formed through the thin body structure of the steel-plastic back plate to form a forming structure, develops an area where local materials can be independently operated, widens the available space of the steel-plastic back plate, and realizes structural functions of bending, rolling, flanging and the like, thereby achieving the innovation of the manufacturing method of the panel display module. CN207601453U discloses a metal frame LCM and PFF structure TP full-laminated display screen, which comprises a metal frame, an LCM display module, a buffer strip, an OCA optical adhesive tape, a light modulation film and a glass cover plate; the metal outer frame is arranged on the outer side of the LCM, a wrapping groove is formed in the metal outer frame, and the upper end of the metal outer frame extends inwards to form a wrapping surface; the LCM is arranged in the wrapping groove; the buffer strip is arranged at the upper end of the wrapping surface of the metal outer frame; the OCA optical adhesive tape is positioned at the upper end of the LCM; the light adjusting film is positioned between the OCA optical adhesive tape and the glass cover plate; the glass cover plate is arranged at the upper end of the light adjusting film, various technical problems in the laminating process can be effectively solved, the expected quality effect is achieved after the product is laminated, the enterprise cost is reduced, and the qualification rate of the product is improved.
BM area width is 0.9mm, screen body attachable area width is about 0.9mm, side seal edge width is about 0.3mm, and limit bonding area is about 1.2mm considering appearance2If the conventional PU foam adhesive tape is adopted for bonding, the strength of the adhesive tape with the width of 0.9mm cannot meet the strength requirement, the die cutting forming is difficult, and the production cannot be constructed. The PU foam cotton glue used by the prior full-lamination LCD TV is not feasible for bonding a screen body with 0.9mm in a BM area due to wide size and weak strength.
Therefore, it is a technical problem to be solved urgently in the art to develop a display module which has high requirements for adhesive strength and adhesive precision and can solve the problem of small adhesive area of the BM area.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a display module and a preparation method and application thereof; the liquid crystal display screen is connected with the frame body through UV glue; the UV glue is adopted to replace the traditional foam cotton glue, and the liquid crystal display screen and the frame body can be connected by glue dispensing through an automatic precise glue dispenser; the prepared display module not only meets the requirements of liquid crystal glass on bonding strength, elongation at break and shore hardness, but also has certain buffering elasticity due to the adoption of the UV glue, can effectively avoid the problem that a screen body is fragile in the assembling and repairing processes, and has important research value.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a display module, which comprises a liquid crystal display screen and a frame body, wherein the liquid crystal display screen is connected with the frame body through UV glue.
The display module provided by the invention comprises a liquid crystal display screen and a frame body; the liquid crystal display screen is connected with the frame body through UV glue; the liquid crystal display screen and the frame body are connected by adopting UV glue, so that overflow is not easy to occur, a membrane is not polluted, and the liquid crystal display screen has a higher aspect ratio; the problems of high difficulty in narrow-width die cutting and insufficient strength of bonded liquid crystal glass of foam cotton glue can be effectively solved, and the display bonding of a 0.9mm ultra-narrow frame in a BM area of a liquid crystal display screen is realized; on the other hand, the initial curing time of the UV glue is short, the glue bonding efficiency is favorably improved, the glue keeps the shape and does not overflow after the UV glue is initially cured, and the phenomenon that the appearance is influenced due to the fact that the glue overflows the side edge sealing after the glue is subjected to pressure maintaining is avoided; and the glue has certain initial adhesion after UV is initially fixed, the strength of a 3mm wide adhesive tape can be achieved within 5min after the liquid crystal screen is attached, the condition that the screen body slides downwards cannot occur in the whole machine, and meanwhile, the glue is similar to a tape shape because the glue is not completely cured, can be directly detached if the adhesive tape is poorly attached, and has reworkability.
Preferably, the frame body comprises an aluminum alloy frame and/or a plastic frame.
Preferably, the UV glue comprises a one-part urethane acrylate glue.
Preferably, the UV glue comprises black UV glue and transparent UV glue.
As a preferred technical scheme, the transparent UV glue and the black UV glue are selected, the transparent UV glue has high transmittance, the alternating current overflow can be prevented from polluting the membrane to influence the visual effect, and the black UV glue is used for shading light to effectively prevent the side light leakage or light seepage problem of the liquid crystal screen.
Preferably, the viscosity of the black UV glue is 120000-122000 cps, such as 122200cps, 122400cps, 122600cps, 122800cps, 123000cps, 123200cps, 123400cps, 123600cps, or 123800cps, and the specific point values therebetween, limited in space and for brevity, are not exhaustive enumeration of the specific point values included in the ranges.
Preferably, the viscosity of the transparent UV glue is 145000-155000 cps, such as 146000cps, 147000cps, 148000cps, 149000cps, 150000cps, 151000cps, 152000cps, 153000cps or 154000cps, and the specific point values therebetween are not exhaustive for the sake of brevity and simplicity.
As the preferred technical scheme of the invention, the width and the height of the glue line are effectively controlled, so that the UV glue does not overflow obviously, the UV glue is applied to a device with a large size, the risk of glue overflow of low-viscosity glue is large, the materials have tolerance, the width and the height of the glue line are difficult to control, the liquid crystal screen cannot be ensured to be in full contact with the frame body, and the reliability cannot be ensured, so that the glue overflow can be effectively placed by controlling the viscosity of the transparent UV glue to be 145000-155000 cps and the viscosity of the black UV glue to be 120000-122000 cps.
In a second aspect, the present invention provides a method for manufacturing a display module according to the first aspect, the method includes: and coating UV glue on the frame body, connecting the frame body with a liquid crystal display screen, and curing to obtain the display module.
The preparation method of the display module is simple to operate and can realize accurate control.
Preferably, the method of coating is spot coating.
Preferably, the coating is performed by an automatic dispenser.
Preferably, the automatic dispenser is a screw valve needle type automatic dispenser.
Preferably, the needle head of the screw valve needle type automatic glue dispenser is a plastic steel needle head or a stainless steel needle head.
Preferably, the dispensing mode of the screw valve needle head type automatic dispensing machine is double-head dispensing.
Preferably, the coating of the UV glue on the frame body includes coating black UV glue and coating transparent UV glue.
Preferably, the width of the glue line of the coated transparent UV glue is 0.2-0.4 mm, such as 0.22mm, 0.24mm, 0.26mm, 0.28mm, 0.3mm, 0.32mm, 0.34mm, 0.36mm or 0.38mm, and the specific values therebetween are not exhaustive, and for the sake of brevity.
Preferably, the height of the coated transparent UV glue is 0.4-0.6 mm, such as 0.42mm, 0.44mm, 0.46mm, 0.48mm, 0.5mm, 0.52mm, 0.54mm, 0.56mm or 0.58mm, and the specific values therebetween are not exhaustive, and for brevity and clarity, the invention is not intended to be limited to the specific values included in the scope.
Preferably, the dispensing speed of the coated transparent UV glue is 40-60 mm/s, such as 42mm/s, 44mm/s, 46mm/s, 48mm/s, 50mm/s, 52mm/s, 54mm/s, 56mm/s or 58mm/s, and the specific point values therebetween are not exhaustive, and for brevity and clarity, the invention is not intended to be limited to the specific point values included in the scope.
As the preferred technical scheme of the invention, the dispensing speed, the width and the height of the glue line of the UV glue are reasonably controlled, so that the UV glue can not overflow obviously.
Preferably, the width of the glue line of the black UV glue is 0.6-0.8 mm, such as 0.62mm, 0.64mm, 0.66mm, 0.68mm, 0.7mm, 0.72mm, 0.74mm, 0.76mm or 0.78mm, and the specific values therebetween are not exhaustive, and for the sake of brevity.
Preferably, the black UV glue is applied at a height of 0.4-0.6 mm, such as 0.42mm, 0.44mm, 0.46mm, 0.48mm, 0.5mm, 0.52mm, 0.54mm, 0.56mm or 0.58mm, and the specific values therebetween are not exhaustive, and for brevity and clarity, the invention is not intended to be limited to the specific values included in the scope.
Preferably, the black UV glue is applied at a dispensing speed of 30-50 mm/s, such as 32mm/s, 34mm/s, 36mm/s, 38mm/s, 40mm/s, 42mm/s, 44mm/s, 46mm/s or 48mm/s, and the specific point values therebetween are not exhaustive, and for brevity and clarity, the invention is not intended to be limited to the specific point values included in the scope.
Preferably, the curing is a UV curing and a moisture curing dual curing.
The UV glue belongs to single-component polyurethane acrylate glue, adopts a UV humidifying gas curing mode, does not need heating, has higher bonding strength, has high viscosity and high elongation at break, is similar to an adhesive tape after being completely cured, has good elasticity and detachability, and is convenient for after-sale maintenance.
Preferably, the curing time is: the transparent adhesive is irradiated by an LED UV light source, and the illumination quantity is more than 1000mJ/cm2The black glue is more than 3000mJ/cm2UV irradiation time is mW/cm according to the intensity of the used UV light source2Determination (dose mJ/cm)2Light intensity mW/cm2x time sec.), long UV irradiation time, high curing degree of glue, reduced bonding capacity, preferably controlled within 5s, and 24 hours for moisture curing after UV irradiation.
As a preferred technical scheme, the preparation method comprises the following steps: respectively dispensing black UV glue and transparent UV glue on the frame body through a screw valve needle head type automatic dispenser with a plastic steel needle head or a stainless steel needle head, connecting the frame body with a liquid crystal display screen, and performing UV curing and moisture curing to obtain the display module;
the width of the glue line coated with the transparent UV glue is 0.2-0.4 mm, and the height of the coated transparent UV glue is 0.4-0.6 mm; the dispensing speed of the transparent UV glue coating is 40-60 mm/s; the width of the glue line coated with the black UV glue is 0.6-0.8 mm; the height of the black UV glue is 0.4-0.6 mm; the dispensing speed of the black UV glue coating is 30-50 mm/s.
As a preferred technical scheme of the invention, the width and the height of the glue line are controlled, the glue is transparent and black, the viscosity of the transparent UV glue is 145000-155000 cps, the viscosity of the black UV glue is 120000-122000 cps, and the high viscosity of the glue enables the glue line after glue dispensing to have three-dimensional effect, not easy to overflow and pollute a membrane, and simultaneously has higher width-to-height ratio.
In a third aspect, the invention provides a display module according to the first aspect, which is applied to a display device or a lighting device.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the display module provided by the invention, the liquid crystal display screen and the frame body are connected through the UV glue, and the liquid crystal display screen and the frame body are connected through the UV glue, so that overflow is not easy to occur, a membrane is not polluted, and meanwhile, the display module has a higher aspect ratio; the shear strength of the display module is 6.63-7.55 MPa, the fracture rate can reach 400%, and the Shore hardness is 26-29; adopt UV glue to replace traditional bubble celloidin sticky tape, can effectively solve bubble celloidin width narrow, the cross cutting degree of difficulty is high, the not enough problem of bonding liquid crystal glazing intensity, realize that the super narrow frame in liquid crystal display BM district 0.9mm shows the bonding.
(2) By adopting the UV glue, the UV initial curing time is short, the bonding efficiency of the UV glue is favorably improved, meanwhile, the glue keeps the shape and does not overflow after the UV initial curing, and the phenomenon that the appearance is influenced by the overflow of the side edge sealing after the glue is subjected to pressure maintaining is avoided. Glue has certain initial adhesion after the UV is just solidified, can reach the intensity of 3mm wide sticky tape in 5min after the laminating of LCD screen, and the condition that the screen body slided downwards can not appear in whole machine founds the machine, simultaneously because the UV glue is not completely solidified, like the banded, if have the laminating harmfully, can directly dismantle, possess the reworkability.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of the display module provided in embodiment 1, wherein 1-a liquid crystal display, 2-a frame, 3-black UV glue, and 4-transparent UV glue.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
A display module is shown in figure 1, and comprises a liquid crystal display screen 1 (Jing east) and a frame body 2 (Zhuhai Fuji Intelligent corporation);
the liquid crystal display screen is connected with the frame body through black UV glue 3 (single-component polyurethane acrylate glue, SEKISUI in Japan) and transparent UV glue 4 (single-component polyurethane acrylate glue, SEKISUI in Japan);
the preparation method comprises the following steps: respectively dispensing black UV glue and transparent UV glue on the frame body through a screw valve needle head type automatic dispenser with a plastic steel needle head or a stainless steel needle head, connecting the frame body with a liquid crystal display screen, and curing for 24 hours by adopting a UV and moisture curing dual-curing mode to obtain the display module;
the width of the glue line coated with the transparent UV glue is 0.3mm, and the height of the coated transparent UV glue is 0.5 mm; the dispensing speed of the coated transparent UV glue is 50 mm/s; the width of the glue line coated with the black UV glue is 0.7 mm; the height of the black UV glue is 0.5 mm; the dispensing speed of the black UV glue coating is 40 mm/s.
Example 2
A display module has the same structure as that of embodiment 1, and comprises a liquid crystal display screen (Jing east) and a frame body (Zhuhai Fuji Intelligent corporation);
the liquid crystal display screen is connected with the frame body through black UV glue (single-component polyurethane acrylate glue, SEKISUI) and transparent UV glue (single-component polyurethane acrylate glue, SEKISUI);
the preparation method comprises the following steps: respectively dispensing black UV glue and transparent UV glue on the frame body through a screw valve needle head type automatic dispenser with a plastic steel needle head or a stainless steel needle head, connecting the frame body with a liquid crystal display screen, and curing for 24 hours by adopting a UV and moisture curing dual-curing mode to obtain the display module;
the width of the glue line coated with the transparent UV glue is 0.2mm, and the height of the coated transparent UV glue is 0.4 mm; the dispensing speed of the coated transparent UV glue is 40 mm/s; the width of the glue line coated with the black UV glue is 0.6 mm; the height of the black UV glue is 0.4 mm; the dispensing speed of the black UV glue coating is 30 mm/s.
Example 3
A display module has the same structure as that of embodiment 1, and comprises a liquid crystal display screen (Jing east) and a frame body (Zhuhai Fuji Intelligent corporation);
the liquid crystal display screen is connected with the frame body through black UV glue (single-component polyurethane acrylate glue, SEKISUI) and transparent UV glue (single-component polyurethane acrylate glue, SEKISUI);
the preparation method comprises the following steps: respectively dispensing black UV glue and transparent UV glue on the frame body through a screw valve needle head type automatic dispenser with a plastic steel needle head or a stainless steel needle head, connecting the frame body with a liquid crystal display screen, and curing for 24 hours by adopting a UV and moisture curing dual-curing mode to obtain the display module;
the width of the glue line coated with the transparent UV glue is 0.4mm, and the height of the coated transparent UV glue is 0.6 mm; the dispensing speed of the coated transparent UV glue is 60 mm/s; the width of the glue line coated with the black UV glue is 0.8 mm; the height of the black UV glue is 0.6 mm; the dispensing speed of the black UV glue coating is 50 mm/s.
Comparative example 1
A display module comprises a liquid crystal display (BOE) and a frame body (Shenzhen Li pediatrics);
the liquid crystal display screen is connected with the frame body through foam cotton (3M).
And (3) performance testing:
(1) shear strength: the base material aluminum plate is tested according to the test standard GB/T7124-;
(2) elongation at break: testing according to the test standard GB/T30776-2014;
(3) shore hardness; measured using a shore D durometer.
The display modules provided in examples 1 to 3 and comparative example 1 were tested according to the above test method, and the test results are shown in table 1:
TABLE 1
| Shear strength (MPa) | Elongation at Break (%) | Shore hardness | |
| Example 1 | 7.46 | 400 | 28 |
| Example 2 | 6.63 | 400 | 26 |
| Example 3 | 7.55 | 400 | 29 |
| Comparative example 1 | 3.1 | / | / |
As can be seen from the data in table 1: the display module provided by the invention has higher shear strength, elongation at break and shore hardness. Specifically, the shear strength of the display module obtained in the embodiments 1 to 3 is 6.63 to 7.55MPa, the breaking rate can reach 400%, and the shore hardness is 26 to 29; the shear strength of the display module obtained in the comparative example was only 3.1 MPa.
The applicant declares that the present invention describes a display module and a method for manufacturing the same and applications thereof through the above embodiments, but the present invention is not limited to the above process steps, i.e. it does not mean that the present invention must be implemented by relying on the above process steps. It will be apparent to those skilled in the art that any modification of the present invention, equivalent substitutions of selected materials and additions of auxiliary components, selection of specific modes and the like, which are within the scope and disclosure of the present invention, are contemplated by the present invention.
Claims (10)
1. The utility model provides a display module assembly, its characterized in that, display module assembly includes liquid crystal display and framework, liquid crystal display and framework pass through UV glue and connect.
2. The display module according to claim 1, wherein the frame body comprises an aluminum alloy frame and/or a plastic frame.
3. The display module of claim 1 or 2, wherein the UV glue comprises a one-component polyurethane acrylate glue;
preferably, the UV glue comprises black UV glue and transparent UV glue;
preferably, the viscosity of the black UV glue is 120000-122000 cps;
preferably, the viscosity of the transparent UV glue is 145000-155000 cps.
4. A preparation method of the display module according to any one of claims 1 to 3, wherein the preparation method comprises the following steps: and coating UV glue on the frame body, connecting the frame body with a liquid crystal display screen, and curing to obtain the display module.
5. The method of claim 4, wherein the coating is performed by spot coating;
preferably, the coating is performed by an automatic dispenser;
preferably, the automatic dispenser is a screw valve needle type automatic dispenser;
preferably, the needle head of the screw valve needle type automatic glue dispenser is a plastic steel needle head or a stainless steel needle head;
preferably, the dispensing mode of the screw valve needle head type automatic dispensing machine is double-head dispensing.
6. The preparation method of claim 4 or 5, wherein the step of coating the UV glue on the frame body comprises two steps of coating black UV glue and coating transparent UV glue;
preferably, the width of the glue line coated with the transparent UV glue is 0.2-0.4 mm;
preferably, the height of the coated transparent UV glue is 0.4-0.6 mm;
preferably, the dispensing speed of the coated transparent UV glue is 40-60 mm/s.
7. The preparation method of claim 6, wherein the width of the glue line coated with the black UV glue is 0.6-0.8 mm;
preferably, the height of the black UV glue coating is 0.4-0.6 mm;
preferably, the dispensing speed of the black UV glue coating is 30-50 mm/s.
8. The method according to any one of claims 4 to 7, wherein the curing is a UV curing and a moisture curing dual curing.
9. The method according to any one of claims 4 to 8, wherein the method comprises: respectively dispensing black UV glue and transparent UV glue on the frame body through a screw valve needle head type automatic dispenser with a plastic steel needle head or a stainless steel needle head, connecting the frame body with a liquid crystal display screen, and performing UV curing and moisture curing to obtain the display module;
the width of the glue line coated with the transparent UV glue is 0.2-0.4 mm, and the height of the coated transparent UV glue is 0.4-0.6 mm; the dispensing speed of the transparent UV glue coating is 40-60 mm/s; the width of the glue line coated with the black UV glue is 0.6-0.8 mm; the height of the black UV glue is 0.4-0.6 mm; the dispensing speed of the black UV glue coating is 30-50 mm/s.
10. Use of the display module according to any one of claims 1 to 3 in a display device or a lighting device.
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| CN202110302413.5A CN113031332B (en) | 2021-03-22 | 2021-03-22 | Preparation method of display module |
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| CN202110302413.5A CN113031332B (en) | 2021-03-22 | 2021-03-22 | Preparation method of display module |
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| CN113031332B CN113031332B (en) | 2023-01-20 |
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| CN202110302413.5A Active CN113031332B (en) | 2021-03-22 | 2021-03-22 | Preparation method of display module |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103525355A (en) * | 2013-10-16 | 2014-01-22 | 烟台德邦科技有限公司 | Ultraviolet curing adhesive for liquid crystal display television side frame and preparation method of ultraviolet curing adhesive |
| CN104923455A (en) * | 2015-06-19 | 2015-09-23 | 深圳创维－Rgb电子有限公司 | Buffer strip dispensing process for assembling liquid crystal television and liquid crystal television |
| CN105829924A (en) * | 2014-01-21 | 2016-08-03 | 株式会社巴川制纸所 | Anisotropic optical film |
| WO2018126760A1 (en) * | 2017-01-05 | 2018-07-12 | 苏州苏大维格光电科技股份有限公司 | Resin holographic waveguide lens and preparation method therefor, and three-dimension display device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103525355A (en) * | 2013-10-16 | 2014-01-22 | 烟台德邦科技有限公司 | Ultraviolet curing adhesive for liquid crystal display television side frame and preparation method of ultraviolet curing adhesive |
| CN105829924A (en) * | 2014-01-21 | 2016-08-03 | 株式会社巴川制纸所 | Anisotropic optical film |
| CN104923455A (en) * | 2015-06-19 | 2015-09-23 | 深圳创维－Rgb电子有限公司 | Buffer strip dispensing process for assembling liquid crystal television and liquid crystal television |
| WO2018126760A1 (en) * | 2017-01-05 | 2018-07-12 | 苏州苏大维格光电科技股份有限公司 | Resin holographic waveguide lens and preparation method therefor, and three-dimension display device |
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