CN110264883B - Curved surface display panel laminating device - Google Patents
Curved surface display panel laminating device Download PDFInfo
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- CN110264883B CN110264883B CN201910578873.3A CN201910578873A CN110264883B CN 110264883 B CN110264883 B CN 110264883B CN 201910578873 A CN201910578873 A CN 201910578873A CN 110264883 B CN110264883 B CN 110264883B
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- roller
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—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
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Abstract
The embodiment of the invention provides a curved surface display panel laminating device, which solves the technical problem that black spots or other poor display are generated on a display screen body due to uneven distribution of curved surface laminating pressure. According to the curved surface laminating device provided by the embodiment of the invention, the laminating roller and the at least one layer of supporting roller group are adopted to roll the display substrate and the curved surface cover plate to realize laminating, when the curved surface cover plate is laminated with the display substrate, the supporting roller group and the laminating roller can bear larger laminating pressure without bending, so that the laminating pressure in the laminating process is increased, and the laminating pressure in the laminating process can be ensured to be larger even if the diameter of the laminating roller is smaller. Can guarantee that the laminating in-process has great laminating pressure, also can guarantee that the diameter of laminating gyro wheel is less, improve the pressure homogeneity of laminating in-process, avoid appearing black spot or other bad problems of demonstration because of the display screen body that the laminating pressure distributes inhomogeneous and lead to.
Description
Technical Field
The invention relates to the technical field of display, in particular to a curved surface display panel laminating device.
Background
The flexible display panel technology is the mainstream display panel technology at present, and flexible display panel's in the market mainly is used in the terminal of edge bending, and among the present laminating mode, laminating pressure distributes unevenly, produces the bubble between display substrate and the apron in the laminating process, causes display panel to appear black spot easily or other bad problems that show.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a curved surface display panel bonding apparatus, which solves the technical problem that black spots or other poor displays occur on a display screen body due to uneven distribution of curved surface bonding pressure.
For the purpose of making the objects, technical means and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
According to an aspect of the present invention, an embodiment of the present invention provides a curved display panel attaching apparatus for attaching a display substrate to a curved cover plate, including: the workbench is used for supporting the curved cover plate; a roller assembly, the roller assembly comprising: the laminating roller is used for rolling the display substrate to be laminated and the curved cover plate to form a curved display panel; and at least one layer of supporting roller group is arranged on one side, far away from the workbench, of the laminating roller, and each layer of supporting roller group comprises at least one supporting roller.
In an embodiment of the present invention, the roller assembly includes at least two supporting roller sets, in any two adjacent supporting roller sets, a supporting roller set far away from the bonding roller is a first supporting roller set, a supporting roller set close to the bonding roller is a second supporting roller set, and a difference between the number of the supporting rollers in the first supporting roller set and the number of the supporting rollers in the second supporting roller set is one.
In an embodiment of the present invention, the circumferential cross-section of the roller assembly is a first cross-section, wherein the first cross-section includes n circles, a connection line of centers of circles in the plurality of circles located at the edge of the first cross-section forms a first shape, an included angle between two sides of the first shape with the center of the circle of the bonding roller as a starting point is less than ninety degrees, and n is a sum of the number of the bonding rollers and the number of the support rollers.
In an embodiment of the invention, the first shape is an isosceles triangle.
In an embodiment of the invention, the first shape is a diamond shape.
In an embodiment of the invention, the curved-surface display panel attaching device includes two attaching rollers, and the two attaching rollers are disposed at two ends of a diagonal line of the diamond shape.
In an embodiment of the present invention, when the bonding roller rolls the display substrate to be bonded and the curved cover plate, only the bonding roller in the roller assembly contacts the display substrate.
In an embodiment of the present invention, the diameter of the attaching roller is the same as that of the supporting roller.
In an embodiment of the present invention, the curved display panel attaching apparatus further includes: the rotating device is rotationally connected with the roller assembly so as to enable the roller assembly to rotate; the rotating device includes: a support; the first connecting pieces are respectively arranged at the end parts of the attaching roller and the supporting roller; and a second connector disposed on the bracket; the first connecting pieces and the second connecting pieces are equal in number and are connected in a one-to-one correspondence mode, so that the laminating roller and each supporting roller can rotate independently.
In an embodiment of the present invention, the first connecting member is a bearing, and the second connecting member is a shaft sleeve; or, the first connecting piece is a shaft sleeve, and the second connecting piece is a bearing.
According to the curved-surface display panel laminating device provided by the embodiment of the invention, the laminating roller and the at least one layer of supporting roller group are adopted to roll the display substrate and the curved-surface cover plate to realize lamination, so that the curved-surface display panel is formed, when the curved-surface cover plate is laminated with the display substrate, the supporting roller group and the laminating roller can bear larger laminating pressure without bending, so that the laminating pressure in the laminating process is increased, and the laminating pressure in the laminating process can be ensured to be larger even if the diameter of the laminating roller is smaller. Because the diameter of laminating gyro wheel is less, the laminating is more even, and great laminating pressure supports the gyro wheel group and bears with the laminating gyro wheel jointly, and the laminating gyro wheel can not laminating process sound production again crooked. Therefore, the curved-surface display panel laminating device provided by the embodiment of the invention can ensure that the laminating pressure is higher in the laminating process, the diameter of the laminating roller is smaller, the pressure uniformity in the laminating process is improved, and the problems of black spots or other poor display of the display screen body caused by uneven distribution of the laminating pressure are avoided.
Drawings
Fig. 1 is a schematic structural view of a curved display panel bonding apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a roller assembly in a curved display panel bonding apparatus according to an embodiment of the present invention;
FIG. 3 is a cross-section of a roller assembly perpendicular to a diameter of a bonding roller in a curved display panel bonding apparatus according to an embodiment of the invention;
FIG. 4 is a cross-section of a roller assembly of a curved display panel bonding apparatus according to another embodiment of the present invention, taken perpendicular to a diameter of a bonding roller.
Detailed Description
As described in the background art, the curved surface bonding pressure distribution in the prior art is not uniform, thereby causing black spots or other technical problems of poor display of the display screen body. The inventor researches and finds that the reason for the problem is that when the roller is adopted for bonding, due to the existence of the curved angle, the pressing and bonding of the roller at the curved angle are not easy to realize, namely, if the curved angle is bonded, the smaller the diameter of the roller is, the better the roller is, but if the curved angle is pressed, the larger the pressure applied to the bonding position by the roller is, the better the roller is, but the larger the pressure is, the larger the diameter of the roller is, so that for the bonding at the curved angle, the bonding and the pressing are required, and the diameters of the roller are required to be adopted are contradictory, so that in the curved angle bonding process in the prior art, the bonding and the pressing cannot be both satisfied.
Based on the above, the invention provides a curved surface display panel laminating device, which is applied to laminating a display substrate and a curved surface cover plate, and the laminating roller and at least one layer of supporting roller group are adopted to roll the display substrate and the curved surface cover plate to realize laminating, so that the curved surface display panel is formed. Because the diameter of laminating gyro wheel is less, the laminating is more even, and great laminating pressure supports the gyro wheel group and bears with the laminating gyro wheel jointly, and the laminating gyro wheel can not laminating process sound production again crooked. Therefore, the curved surface display panel laminating device provided by the invention can ensure that the laminating pressure is higher in the laminating process, the diameter of the laminating roller is smaller, the pressure uniformity in the laminating process is improved, and the problems of black spots or other poor display of the display screen body caused by uneven distribution of the laminating pressure are avoided.
Specifically, the curved display panel attaching device provided by the invention comprises: a table for supporting the cover plate; a roller assembly, the roller assembly comprising: the laminating roller is used for rolling the display substrate to be laminated and the cover plate to form a curved display panel; and at least one layer of supporting roller group is arranged on one side, far away from the workbench, of the laminating roller, and each layer of supporting roller group comprises at least one supporting roller.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 shows a curved display panel bonding apparatus according to an embodiment of the present invention, for bonding a display substrate and a cover plate, where as shown in fig. 1, the curved display panel bonding apparatus includes: a workbench 1 and a roller assembly 2. Wherein the workbench 1 is used for supporting the cover plate, and the shape of the workbench 1 can be matched with that of the cover plate. The roller assembly 2 comprises a bonding roller 21 and at least one layer of supporting roller group 22 arranged on one side of the bonding roller 21 far away from the workbench 1, wherein the bonding roller 21 is used for rolling a display substrate to be bonded and a curved surface cover plate to form a curved surface display panel; each layer of the supporting roller group 22 includes at least one supporting roller 221 as shown in fig. 2. When laminating display substrates and curved surface apron, adopt gyro wheel assembly 2 to treat the display substrates and the curved surface apron of laminating and laminate to form curved surface display panel, when curved surface apron and display substrates laminated, support roller train 22 and laminating gyro wheel 21 and can bear bigger laminating pressure and can not take place the bending, thereby increased laminating pressure among the laminating process, even consequently the diameter of laminating gyro wheel 21 is less, also can guarantee that laminating pressure among the laminating process is great. Because the diameter of laminating gyro wheel 21 is less, the laminating is more even, and great laminating pressure supports gyro wheel group 22 and laminating gyro wheel 21 and bears jointly, and laminating gyro wheel 21 also can not laminating process sound production bending again. Therefore, the curved surface display panel laminating device provided by the invention can ensure that the laminating pressure is higher in the laminating process, the diameter of the laminating roller 21 is smaller, the pressure uniformity in the laminating process is improved, and the problems of black spots or other poor display of the display screen body caused by uneven distribution of the laminating pressure are avoided.
In an embodiment of the present invention, when the bonding roller 21 rolls the display substrate to be bonded and the curved cover plate, only the bonding roller 21 in the roller assembly 2 contacts the display substrate, so that different pressures in the bonding process caused by different rollers can be avoided, and the bonding pressure is more uniformly distributed.
It should be understood that the number of layers of the supporting roller groups 22 and the number of the supporting rollers 221 included in each supporting roller group 22 may be selected according to the practical application, for example, the number of the supporting roller groups 22 is one layer, and each layer of the supporting roller groups 22 includes two supporting rollers 221. Therefore, as long as the supporting roller groups 22 can support the attaching roller 21, the number of layers of the supporting roller groups 22 and the number of the supporting rollers 221 included in each supporting roller group 22 are not limited in the embodiment of the present invention.
In an embodiment of the present invention, the roller assembly 2 includes at least two supporting rollers 221, and each supporting roller 221 has the same diameter, and the supporting rollers 221 have the same diameter, so that the manufacturing process is reduced.
In a further embodiment of the present invention, the diameter of the engaging roller 21 is the same as the diameter of the supporting roller 221.
In an embodiment of the present invention, the roller assembly 2 includes at least two supporting roller sets 22, where a supporting roller set 22 far away from the attaching roller 21 in any two adjacent supporting roller sets 22 is a first supporting roller set 22, a supporting roller set 22 close to the attaching roller 21 in the two adjacent supporting roller sets 22 is a second supporting roller set, and a difference between the number of the supporting rollers 221 in the first roller supporting layer and the number of the supporting rollers 221 in the second roller supporting layer is one. In the embodiment of the present invention, the difference between the numbers of the supporting rollers 221 in two adjacent supporting roller sets 22 is one, so that each supporting roller 221 in the m-1 th layer (where m is the number of the supporting roller sets 22) in the supporting roller set 22 can be disposed between two adjacent supporting rollers 221 in the m-th layer, thereby stabilizing the structure of the roller assembly 2 and using fewer rollers while ensuring the structural stability.
It should be understood that the number of the supporting roller sets 22 and the number of the supporting rollers 221 included in the one layer of the supporting roller set 22 closest to the attaching roller 21 may be selected according to the practical application, for example, the number of the supporting roller sets 22 is four, the one layer of the supporting roller set 22 closest to the attaching roller 21 includes two supporting rollers 221, and the number of the supporting rollers 221 in the remaining three layers of the supporting roller sets 22 from the position close to the attaching roller 21 to the position far from the attaching roller 21 is three, four, and five in sequence, as shown in fig. 2.
In an embodiment of the present invention, the circumferential cross section of the roller assembly 2 is a first cross section, wherein the first cross section includes n circles (n is the sum of the numbers of the engaging rollers 21 and the supporting rollers 221, i.e. the number of rollers in the roller assembly 2), a line connecting a plurality of centers of circles located at the edge of the first cross section forms a first shape 4, and an included angle α between two sides of the first shape 4, which are starting from the center of the engaging roller 21, is smaller than 90 °, as shown in fig. 3. In the first shape 4, the included angle α between the two edges taking the circle center of the attaching roller 21 as the starting point is smaller than 90 °, namely, the angle of the contact part between the roller assembly 2 and the flexible display layer in the attaching process is smaller than 90 °, and the minimum angle of the curved surface attaching is also larger than 90 °, so that in the attaching process, the roller assembly 2 is not in contact with other positions except the contact part with the cover plate and the flexible display layer, thereby ensuring that the roller assembly 2 is not interfered with the flexible display layer and the cover plate, and ensuring that the attaching is uniform.
It should be understood that the first shape 4 and how the rollers of the roller assembly 2 are arranged can make α less than 90 °, which can be selected according to the practical application, for example, the roller assembly 2 includes one attaching roller 21 and fourteen supporting rollers, and the fourteen supporting rollers 221 are divided into four layers in the direction from the position close to the attaching roller 21 to the position far from the attaching roller 21, and each layer includes two, three, four and five supporting rollers 221 in turn, as shown in fig. 3. Therefore, as long as α is less than 90 °, the embodiment of the present invention does not limit how the first shape 4 and the respective rollers of the roller assembly 2 are arranged.
In an embodiment of the present invention, when the first shape 4 is an isosceles triangle and the first shape 4 is an isosceles triangle, the roller assembly 2 is easier to form in terms of process.
In a further embodiment of the present invention, the first shape 4 is a regular triangle, so α is equal to 60 °, and how to arrange each roller in the roller assembly 2 can make the first shape 4 be a regular triangle, as shown in fig. 3, or other cases, so that the present invention does not limit how to arrange each roller in the roller assembly 2 to make the first shape 4 be a regular triangle.
In another further embodiment of the present invention, the first shape 4 is a diamond shape, and the curved display panel bonding apparatus includes two bonding rollers 21, and the two bonding rollers 21 are disposed at two ends of a diagonal line of the diamond shape. As shown in fig. 4. In the embodiment of the invention, the first shape 4 is a rhombus and the two attaching rollers 21 are arranged at two ends of a diagonal line of the rhombus, and both the two attaching rollers 21 can be used for contacting with the display substrate in the attaching process. For example, one of the bonding rollers 21 may be used for bonding a partial region, and the other bonding roller 21 is selected when bonding other regions, but only one bonding roller 21 is in contact with the display substrate all the time in the bonding process, and when one of the bonding rollers 21 fails, the other bonding roller 21 may replace the failed roller to continue bonding the cover plate and the display substrate. In addition, the increased number of the supporting rollers 221 can make the roller assembly 2 have higher strength and can bear higher fitting pressure.
As for how each roller in the roller assembly 2 is disposed so that the first shape 4 is a diamond shape, the case shown in fig. 4 can be considered, that is, the roller assembly 2 includes two attaching rollers 21 and twenty-three supporting rollers 221, and in the direction from the position close to the attaching rollers 21 to the position far from the attaching rollers 21, the twenty-three supporting rollers 221 are divided into seven layers, and the number of each layer including the supporting rollers 221 is two, three, four, five, four, three, and two in turn. As in other cases, the present invention is not limited to how the rollers of the roller assembly 2 are arranged such that the first shape 4 is a diamond shape.
In an embodiment of the present invention, the attaching device further includes a rotating device, wherein the rotating device is rotatably connected to the roller assembly 2 to rotate the roller assembly 2, the rotating device includes a bracket, first connecting members respectively disposed at the ends of the attaching roller 21 and the supporting roller 221, and second connecting members disposed on the bracket, the number of the first connecting members is equal to that of the second connecting members, and each of the first connecting members is rotatably connected to each of the second connecting members in a one-to-one correspondence manner, so that the attaching roller 21 and each of the supporting rollers 221 can rotate independently from each other, thereby allowing each of the rollers to rotate independently in a relatively simple rotational connection manner.
In a further embodiment of the invention, the first connecting element is a bearing and the second connecting element is a shaft sleeve, or the first connecting element is a shaft sleeve and the second connecting element is a bearing.
As for the distribution form of the bearings and the shaft sleeves in the plurality of first connecting pieces and the plurality of second connecting pieces, it can be selected according to practical application scenarios, for example: all the first connecting pieces are shaft sleeves, and all the second connecting pieces are bearings; all the first connecting pieces can be bearings, and all the second connecting pieces can be shaft sleeves; therefore, as long as the first connecting member is connected with the second connecting member to enable the roller in the roller assembly 2 to rotate, the embodiment of the present invention does not limit the distribution form of the bearings and the shaft sleeves in the first connecting member and the plurality of second connecting members.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents and the like included in the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a curved surface display panel laminating device for realize the laminating of display substrates and apron, its characterized in that includes:
a table for supporting the cover plate;
a roller assembly, the roller assembly comprising:
the laminating roller is used for rolling the display substrate to be laminated and the cover plate to form a curved display panel; and the number of the first and second groups,
the support roller groups are arranged on one side, away from the workbench, of the attaching roller, and each support roller group comprises at least one support roller;
the at least one layer of supporting roller set contacts the laminating roller, and when the laminating roller rolls the display substrate to be laminated and the cover plate, only the laminating roller contacts the display substrate in the roller assembly.
2. The curved-surface display panel laminating apparatus according to claim 1, wherein the roller assembly comprises at least two layers of supporting roller sets, wherein in any two adjacent layers of the supporting roller sets, the supporting roller set far away from the laminating roller is a first supporting roller set, the supporting roller set close to the laminating roller is a second supporting roller set, and the difference between the number of the supporting rollers in the first roller supporting set and the number of the supporting rollers in the second roller supporting set is one.
3. The curved display panel bonding apparatus of claim 1, wherein the roller assembly has a first circumferential cross section, wherein the first circumferential cross section includes n circles, a connection line between centers of the circles at the edge of the first circumferential cross section forms a first shape, an included angle between two edges of the first shape starting from the center of the bonding roller is less than ninety degrees, and n is a sum of the number of the bonding rollers and the number of the support rollers.
4. The curved display panel laminating apparatus of claim 3, wherein the first shape is an isosceles triangle.
5. The curved display panel laminating apparatus of claim 3, wherein the first shape is diamond-shaped.
6. The curved display panel bonding apparatus according to claim 5, wherein the curved display panel bonding apparatus comprises two bonding rollers disposed at two ends of a diagonal line of the diamond.
7. The curved display panel bonding apparatus of claim 1, wherein the bonding roller and the support roller have the same diameter.
8. The curved display panel laminating apparatus of claim 1, further comprising:
the rotating device is rotationally connected with the roller assembly so as to enable the roller assembly to rotate;
the rotating device includes:
a support;
the first connecting pieces are respectively arranged at the end parts of the attaching roller and the supporting roller; and the number of the first and second groups,
a second connector disposed on the bracket;
the first connecting pieces and the second connecting pieces are equal in number and are connected in a one-to-one correspondence mode, so that the laminating roller and each supporting roller can rotate independently.
9. The curved display panel laminating apparatus of claim 8,
the first connecting piece is a bearing, and the second connecting piece is a shaft sleeve; or the like, or, alternatively,
the first connecting piece is a shaft sleeve, and the second connecting piece is a bearing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910578873.3A CN110264883B (en) | 2019-06-28 | 2019-06-28 | Curved surface display panel laminating device |
| PCT/CN2019/128132 WO2020258790A1 (en) | 2019-06-28 | 2019-12-25 | Curved display panel bonding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910578873.3A CN110264883B (en) | 2019-06-28 | 2019-06-28 | Curved surface display panel laminating device |
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| CN110264883A CN110264883A (en) | 2019-09-20 |
| CN110264883B true CN110264883B (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910578873.3A Active CN110264883B (en) | 2019-06-28 | 2019-06-28 | Curved surface display panel laminating device |
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| CN (1) | CN110264883B (en) |
| WO (1) | WO2020258790A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110264883B (en) * | 2019-06-28 | 2021-04-23 | 云谷（固安）科技有限公司 | Curved surface display panel laminating device |
| CN111816079B (en) * | 2020-07-24 | 2022-04-26 | 昆山国显光电有限公司 | Curved surface display screen laminating device |
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| WO2020258790A1 (en) | 2020-12-30 |
| CN110264883A (en) | 2019-09-20 |
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Application publication date: 20190920 Assignee: Bazhou Yungu Electronic Technology Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd.|Kunshan Guoxian photoelectric Co., Ltd Assignor: The valley (Guan) Technology Co. Ltd. Contract record no.: X2019990000155 Denomination of invention: A kind of curved face display panel laminating apparatus License type: Common License Record date: 20191030 |
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