CN113000300B - Dispensing method of fourth-side frameless display screen device - Google Patents
Dispensing method of fourth-side frameless display screen device Download PDFInfo
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- CN113000300B CN113000300B CN202110218555.3A CN202110218555A CN113000300B CN 113000300 B CN113000300 B CN 113000300B CN 202110218555 A CN202110218555 A CN 202110218555A CN 113000300 B CN113000300 B CN 113000300B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
- B05C5/0212—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/12—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed after the application
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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
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Abstract
The invention discloses a fourth edge frameless display screen device dispensing method, wherein a large-size screen comprises a first substrate, a sealing layer (CF layer) and a second substrate, wherein the sealing layer (CF layer) is positioned between the first substrate and the second substrate, and the fourth edge dispensing method of the large-size screen comprises the following steps: protruding a fourth edge of a sealing layer (CF layer) from a fourth edge of the first substrate, wherein the fourth edge of the first substrate is flush with the fourth edge of the second substrate, a gap is formed between the first substrate and the second substrate, and the other three edges of the first substrate, the sealing layer (CF layer) and the second substrate are flush; and a baffle is respectively arranged on two sides of the gap perpendicular to the fourth edge, the screen to be glued is rotated, a row of needle glue dispensing devices are used for dispensing glue, and illumination curing is carried out after the glue dispensing. And the fourth edge of the large-size screen is subjected to frameless dispensing.
Description
Technical Field
The field relates to the field of dispensing of equipment, in particular to a fourth dispensing method for a large-size screen of an OLED/LCD TV.
Background
The dispensing process in the market at present can only dispense glue on three sides of a TV screen, the fourth side is fixed by adopting a light shielding plate, the light shielding plate or the light shielding and fixing on the fourth side is determined by the structure of the existing large-size screen, the inside of the fourth screen body is in an exposed state in the prior art, and a light shielding plastic frame is additionally arranged outside the fourth screen body, so that the fourth frame is wider; in the prior art, a dispensing needle head is adopted to dispense glue perpendicular to a region to be coated, but glue is difficult to be dispensed into a gap between two substrates in such a way, so that cured glue formed after curing only exists outside the gap formed by the upper substrate and the lower substrate, and the sealing effect of the display screen is poor, in order to solve the technical problem, a sealing method for a frame of the display screen is provided under the condition that application number 201810035619.4 discloses a sealing method for the sealing element, wherein a sealing element 30 is arranged between an upper substrate 10 and a lower substrate 20, the sealing element is sealed in the prior art, the length difference between the upper substrate 10 and the lower substrate 20 is also the region to be coated, and the region to be coated is coated for multiple times in the application, so that the glue coated for multiple times can be filled into the gap as much as possible.
Aiming at the glue sealing mode of the display screen in the prior art, after glue dispensing is finished, the sealing element can be effectively sealed by further arranging a frame due to the length difference between the upper substrate and the lower substrate. In the prior art, the sealing form belongs to sealing with a frame, the width of the sealing frame is generally 20-30mm, but the area of a display screen cannot be effectively used due to the frame design of the product, so that the product appearance is influenced, and the technical problem that gaps cannot be completely filled with glue still exists in a glue dispensing mode in the prior art.
If the conventional dispensing method is adopted to dispense the POL, CF and TFT on the large-size screen, the following problems can be caused: 1. the large-size screen adopts a frame dispensing process at present, so that the effective use area of the screen is small, and the attractive appearance of the product is influenced; 2. aiming at the problem that the design mode of the substrate in the prior art cannot realize the frameless dispensing operation; 3. in the prior art, the glue dispensing process has long duration and low glue dispensing efficiency; 4. at present, no frame-free efficient glue dispensing method for a large-size screen is provided, and a glue dispensing needle head cannot sufficiently send glue into a gap to be filled with glue, so that the sealing effect of a sealing element is not ideal.
In view of this, how to fill up the blank that the fourth edge borderless dispensing technology cannot be implemented on a large-size screen in the prior art is a technical problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
In order to overcome the defects, the invention provides a fourth edge borderless dispensing method which is simple to operate and can form a large-size screen with attractive appearance, and the fourth edge borderless dispensing method is realized by the following specific technical scheme.
The invention discloses a fourth side dispensing method for a large-size screen, which is simple in operation and attractive in appearance of a formed product, wherein the large-size screen comprises a first substrate, a sealing layer and a second substrate, the sealing layer is positioned between the first substrate and the second substrate, and the fourth side dispensing method for the large-size screen comprises the following steps:
step S1: protruding a fourth edge of the first substrate out of a fourth edge of the sealing layer, and enabling the fourth edge of the first substrate to be flush with the fourth edge of the second substrate, wherein a gap is formed between the first substrate and the second substrate, and the other three edges of the first substrate, the sealing layer and the second substrate are flush;
step S2: placing a first baffle at a first end of the gap formed in the step S1, placing a second baffle at a second end of the gap, and enclosing a dispensing space by the first baffle, the second baffle, the first substrate and the second substrate;
step S3: rotating the screen to enable a dispensing surface of the dispensing space to reach a horizontal position, wherein the dispensing surface is positioned at the top end of the screen;
step S4: inserting needle heads of a row of needle dispensing devices into the dispensing space, and injecting heated liquid shading glue into the dispensing space at one time by the row of needle dispensing devices to finish pouring and dispensing;
step S5: and carrying out illumination curing on the liquid shading glue in the glue dispensing space.
Further, the height of the dispensing space is the length of the fourth edge of the sealing layer protruding from the fourth edges of the first substrate and the second substrate, and the height of the dispensing space is 1.5mm-2 mm.
Further, the baffle in step S2 is made of high density foam for preventing the light shielding glue from flowing out of the gap.
Furthermore, in the step S2, the dispensing space includes a first side surface, the first side surface is surrounded by the fourth edges of the first substrate and the second substrate, and the first side surface is parallel to the fourth edge of the sealing layer and is the dispensing surface.
Further, in step S4, the pin arrangement dispensing device includes a plurality of dispensing needles, the length of the cross section of the pin arrangement dispensing device is less than or equal to the length of the fourth edge of the screen, and the width of the cross section of the pin arrangement dispensing device is less than the width of the dispensing space.
Further, in step S4, the length of the dispensing needle is greater than or equal to the height of the dispensing space, wherein the dispensing needle is a non-sharp, circular needle.
Further, the light-shielding glue in step S4 is heated to 45 ℃ to 60 ℃ before being injected into the dispensing space.
Further, in the step S5, an LED lamp is used for illumination curing, the illumination time is 3-5S, and the distance between the LED lamp and the surface of the irradiated liquid light-shielding glue is 5mm-10 mm. .
Further, the wavelength range of the light emitted by the LED lamp is 365nm-405 nm.
Further, the first substrate is a POL.
Further, the second substrate is a TFT.
For dispensing of medium-size and large-size OLED/LCD screens, light shielding glue is filled in a dispensing space between a TFT and an upper POL in a filling mode, and a high-precision dispensing scheme is carried out for realizing a frameless process of a TV screen, so that an ultra-narrow frame or frameless effect of the TV screen (the fourth side) is realized.
The invention has the advantages that firstly, borderless dispensing is realized on the fourth side of the large-size screen, and then a production process for reducing visual borderless of the bottom of the display screen after the display screen is closed is realized; secondly, the pin header is adopted for filling, so that glue can be filled at one time, and the glue dispensing efficiency is improved; and thirdly, the appearance of the product is improved, the large-size screen is more attractive, and the utilization rate of the screen is improved.
Drawings
FIG. 1 is a schematic diagram of a fourth side structure of a large-size screen according to the present invention;
FIG. 2 is a schematic view of a fourth dispensing structure of a large-size screen according to the present invention;
fig. 3 is a fourth dispensing flow chart for a large-size screen according to the present invention.
Description of the symbols
1 first substrate 2 second substrate
3 sealing layer 4 glue dispensing space
5 fourth side of light- shielding glue 14,24,34
41 glue dispensing space first end and 42 glue dispensing space second end
43 first apron 44 second apron
6-row needle glue dispensing device
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention should be understood not to be limited to such an embodiment described below, and the technical idea of the present invention may be implemented in combination with other known techniques or other techniques having the same functions as those of the known techniques.
In the following description of the embodiments, for purposes of clearly illustrating the structure and operation of the present invention, directional terms are used, but the terms "front", "rear", "left", "right", "outer", "inner", "outward", "inward", "axial", "radial", and the like are to be construed as words of convenience and are not to be construed as limiting terms.
FIG. 1 is a fourth structural diagram of a large-size screen according to the present invention; the large-size screen comprises a first substrate 1, a second substrate 2 and a sealing layer 3, in order to realize the fourth-side frameless glue dispensing, fourth sides 14 and 24 of the first substrate 1 and the second substrate 2 extend outwards to exceed a fourth side 34 of the sealing layer 3, and a gap is formed between the first substrate 1, the second substrate 2 and the sealing layer 3 and used for storing light shading glue 5.
FIG. 2 is a schematic view of a fourth dispensing structure of a large-size screen according to the present invention; fig. 2 shows a schematic structural diagram of a large-size screen and a pin arrangement dispensing device. The first substrate 1 and the second substrate 2 are respectively arranged at two sides of the sealing layer 3, the first substrate 1 and the second substrate 2 enclose a gap, a first baffle 43 and a second baffle 44 are respectively arranged at a first end 41 of the gap and a second end 42 of the gap, and the length and the width of the first baffle 43 and the second baffle 44 are larger than the height and the width of the gap. The first baffle 43, the second baffle 44, the sealing layer 3, the first substrate 1 and the second substrate 2 form a dispensing space 4. The glue dispensing space 4 is used for placing the pin row glue dispensing device 6, and after the glue dispensing needle head of the pin row glue dispensing device 6 is placed in the glue dispensing space 4, the glue dispenser is controlled to start glue discharging, so that the shading glue 5 is poured into the glue dispensing space 4 through the pin row glue dispensing device 6.
The longitudinal length of the pin row dispensing device 6 is matched with the dispensing length of the fourth edge of the large-size screen, the height of the pin row dispensing device 6, namely the length of the dispensing needle head, is more than or equal to the height of the dispensing space 4, dispensing can be realized on the large-size screen at one time through the pin row dispensing device 6, the large-size screen refers to a screen with the length of the fourth edge being more than 200mm, and particularly refers to a display screen with a frame being more than 1m in the prior art.
When the pin-arranging glue dispensing device 6 is used for dispensing glue, the fourth edge of the large-size screen is firstly rotated to the top end of the large-size screen, namely the glue dispensing surface is positioned at a horizontal position, so that the light shielding glue 5 in the glue dispensing space 4 can be distributed horizontally, and the sealing structure of the fourth edge of the large-size screen is smoother.
The needle arrangement dispensing device 6 is inserted into the dispensing space 4 to a depth of about 0.8mm to 1.2mm close to the sealing layer, and the needle of the needle arrangement dispensing device 6 is preferably inserted to a depth of 1mm close to the fourth edge of the sealing layer 3 for dispensing. Usually, the dispensing time and the dispensing amount can be adjusted according to the actual product requirement without exceeding 10S.
Fig. 3 is a fourth dispensing flow chart for a large-size screen according to the present invention.
The large-size screen comprises a first substrate, a sealing layer (CF layer) and a second substrate, wherein the sealing layer (CF layer) is positioned between the first substrate and the second substrate, and the fourth edge dispensing method of the large-size screen comprises the following steps:
step S1: protruding a fourth edge of a sealing layer (CF layer) from a fourth edge of the first substrate, wherein the fourth edge of the first substrate is flush with the fourth edge of the second substrate, a gap is formed between the first substrate and the second substrate, and the other three edges of the first substrate, the sealing layer (CF layer) and the second substrate are flush;
step S2: placing a first baffle at a first end of the gap formed in the step S1, placing a second baffle at a second end of the gap, and enclosing a dispensing space with the first substrate and the second substrate;
step S3: rotating the screen to enable a dispensing surface of the dispensing space to reach a horizontal position, wherein the dispensing surface is positioned at the top end of the screen;
step S4: the liquid shading glue is adopted, the needle heads of the row of needle glue dispensing devices are inserted into the glue dispensing space, and the pouring and the glue dispensing are finished at one time;
step S5: and heating and curing the shading glue in the glue dispensing space.
The height of the dispensing space is the length of the fourth edges of the first substrate and the second substrate protruding out of the sealing layer (CF layer), and the height of the dispensing space is 1.5mm-2 mm. The height can realize the following two effects, namely, firstly, when the glue dispensing space 4 is filled with the shading glue 5, the sealing and shading effects on a large-size screen can be realized; secondly, the dispensing space is designed to be 1.5mm-2mm, so that no frame is formed on the large-size screen, the utilization area of the display screen is increased, and the display screen is more attractive.
Examples
Referring to fig. 1 and 3, a specific embodiment will be described below, for a large-size screen fourth borderless dispensing device, a length of a frame to be dispensed is 200mm, a width between a first substrate and a second substrate on both sides of a sealing layer is 0.5mm, that is, a thickness of the sealing layer is 0.5mm, and a distance between a fourth edge of the sealing layer and fourth edges of the first substrate and the second substrate is 1.5mm-2 mm.
The length more than or equal to of adhesive deposite syringe needle of adhesive deposite device glue the height in space, and the adhesive deposite syringe needle is cylindrical syringe needle, and at the point in-process of gluing, need to arrange needle adhesive deposite device and draw toward the direction of keeping away from the sealing layer fourth edge at the point in-process of gluing, and at the in-process of pulling row needle adhesive deposite device, row needle adhesive deposite device is gluing always, can realize once accomplishing the point and glue, and avoid many times glue the inefficiency that causes and the inhomogeneous condition of coating under the circumstances.
After dispensing, heating is not needed, and the light-shielding adhesive adopted by the invention has the characteristic that the light-shielding adhesive is cured by LED visible light with a wave band of 365nm-405nm (the irradiation time is 3s-5s, and the irradiation distance is 5-10 mm). Certainly, in the process of curing the LED lamp, the temperature of the LED visible light can be generated, the temperature of the curing light has no specific requirement, and the curing of the shading glue cannot be influenced.
In the process of dispensing the large-size screen, the operation steps needing attention are as follows: the fourth edge of the first substrate protrudes out of the fourth edge of the sealing layer (CF layer), so that the fourth edge of the first substrate is flush with the fourth edge of the second substrate, a gap is formed between the first substrate and the second substrate, and the other three edges of the first substrate, the sealing layer (CF layer) and the second substrate are flush; a first baffle is arranged at the first end of the gap, a second baffle is arranged at the second end of the gap, and the first baffle and the second baffle, the first substrate and the second substrate enclose a glue dispensing space; rotating the large-size screen to enable a dispensing surface of the dispensing space to be in a horizontal position, wherein the dispensing surface is positioned at the top end of the screen; the liquid shading glue is adopted, the needle heads of the row of needle glue dispensing devices are inserted into the glue dispensing space, and the pouring and the glue dispensing are finished at one time; and heating and curing the shading adhesive in the spot adhesive space. The height of the dispensing space is the length of the fourth edges of the first substrate and the second substrate protruding out of the sealing layer (CF layer), and the height of the dispensing space is 1.5mm-2 mm. The height can realize the following two effects, namely, firstly, when the glue dispensing space 4 is filled with the shading glue 5, the sealing and shading effects on a large-size screen can be realized; secondly, the dispensing space is designed to be 1.5mm-2mm, so that no frame is formed on the large-size screen, the utilization area of the display screen is increased, and the display screen is more attractive.
Compared with the prior art, the invention has the advantages that the first production process of realizing frameless dispensing on the fourth side of the large-size screen and further reducing the visual frameless bottom of the display screen after the display screen is closed is realized; secondly, the pin header is adopted for filling, so that glue can be filled at one time, and the glue dispensing efficiency is improved; and thirdly, the appearance of the product is improved, the large-size screen is more attractive, and the utilization rate of the screen is improved.
The terms "first" and "second" as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another, unless otherwise specified. Similarly, the appearances of the phrases "a" or "an" in various places herein are not necessarily all referring to the same quantity, but rather to the same quantity, and are intended to cover all technical features not previously described. Similarly, modifiers similar to "about", "approximately" or "approximately" that occur before a numerical term herein typically include the same number, and their specific meaning should be read in conjunction with the context. Similarly, unless a specific number of a claim recitation is intended to cover both the singular and the plural, and embodiments may include a single feature or a plurality of features.
The embodiments described in the specification are only preferred embodiments of the present invention, and the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the present invention. Those skilled in the art can obtain technical solutions through logical analysis, reasoning or limited experiments according to the concepts of the present invention, and all such technical solutions are within the scope of the present invention.
Claims (11)
1. A fourth edge borderless display screen device dispensing method is characterized in that a large-size screen comprises a first substrate, a sealing layer and a second substrate, wherein the sealing layer is located between the first substrate and the second substrate, and the fourth edge dispensing method of the large-size screen comprises the following steps:
step S1: protruding a fourth edge of the first substrate out of a fourth edge of the sealing layer, and enabling the fourth edge of the first substrate to be flush with the fourth edge of the second substrate, wherein a gap is formed between the first substrate and the second substrate, and the other three edges of the first substrate, the sealing layer and the second substrate are flush;
step S2: placing a first baffle at a first end of the gap formed in the step S1, placing a second baffle at a second end of the gap, and enclosing a dispensing space by the first baffle, the second baffle, the first substrate and the second substrate;
step S3: rotating the screen to enable a dispensing surface of the dispensing space to reach a horizontal position, wherein the dispensing surface is positioned at the top end of the screen;
step S4: inserting needle heads of a row of needle dispensing devices into the dispensing space, and injecting heated liquid shading glue into the dispensing space at one time by the row of needle dispensing devices to finish pouring and dispensing;
step S5: and carrying out illumination curing on the liquid shading glue in the glue dispensing space.
2. The dispensing method of claim 1, wherein the height of the dispensing space is a length of the fourth edge of the sealing layer protruding from the fourth edges of the first substrate and the second substrate, and the height of the dispensing space is 1.5mm to 2 mm.
3. The dispensing method of a fourth borderless display screen device according to claim 1, wherein in step S2 said baffle is made of high density foam.
4. The dispensing method for the fourth borderless display screen device according to claim 1, wherein the dispensing space in step S2 includes a first side surface, the first side surface is surrounded by the fourth edges of the first substrate and the second substrate, the first side surface is parallel to the fourth edge of the sealing layer and is the dispensing surface.
5. The dispensing method for a fourth borderless display screen device according to claim 1, wherein in step S4 said pin array dispensing device comprises a plurality of dispensing needle heads, the length of the cross section of said pin array dispensing device is less than or equal to the length of the fourth border of the screen, and the width of the cross section of said pin array dispensing device is less than the width of said dispensing space.
6. The dispensing method of claim 5, wherein in step S4, the length of the dispensing needle is greater than or equal to the height of the dispensing space.
7. The dispensing method for a fourth borderless display screen device according to claim 1, wherein said light shielding adhesive in step S4 is heated to 45 ℃ -60 ℃ before being injected into said dispensing space.
8. The dispensing method for the fourth borderless display screen device according to claim 1, characterized in that in step S5, an LED lamp is used for illumination curing, the illumination time is 3-5S, and the distance between the LED lamp and the surface of the liquid light-shielding adhesive to be illuminated is 5mm-10 mm.
9. The dispensing method of a fourth bezel-less display screen apparatus as recited in claim 8, wherein said LED light emits light in a wavelength range of 365nm to 405 nm.
10. The dispensing method of claim 1, wherein the first substrate is a POL substrate.
11. The dispensing method of claim 1, wherein the second substrate is a TFT.
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| CN202110218555.3A CN113000300B (en) | 2021-02-26 | 2021-02-26 | Dispensing method of fourth-side frameless display screen device |
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| CN202110218555.3A CN113000300B (en) | 2021-02-26 | 2021-02-26 | Dispensing method of fourth-side frameless display screen device |
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| CN113000300B true CN113000300B (en) | 2022-09-02 |
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| TW201344312A (en) * | 2012-04-16 | 2013-11-01 | Shuz Tung Machinery Ind Co Ltd | Method for sealing two bonding substrates |
| CN103047414B (en) * | 2012-12-24 | 2016-03-16 | 朱成祥 | A kind of end socket of injecting glue notch and apply the method that this end socket manufactures heat-insulation aluminum section |
| CN107403873A (en) * | 2016-05-20 | 2017-11-28 | 上海和辉光电有限公司 | A kind of display panel and preparation method thereof, display device |
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