CN114446183A - Display panel bending device and manufacturing method of curved display panel - Google Patents

Display panel bending device and manufacturing method of curved display panel Download PDF

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Publication number
CN114446183A
CN114446183A CN202210216292.7A CN202210216292A CN114446183A CN 114446183 A CN114446183 A CN 114446183A CN 202210216292 A CN202210216292 A CN 202210216292A CN 114446183 A CN114446183 A CN 114446183A
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CN
China
Prior art keywords
display panel
sub
rod
swing arm
adsorption
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CN202210216292.7A
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Chinese (zh)
Inventor
周川
唐国富
莫秋华
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TCL China Star Optoelectronics Technology Co Ltd
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TCL China Star Optoelectronics Technology Co Ltd
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Priority to CN202210216292.7A priority Critical patent/CN114446183A/en
Publication of CN114446183A publication Critical patent/CN114446183A/en
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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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • 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
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)

Abstract

The invention discloses a display panel bending device and a manufacturing method of a curved display panel. The display panel bending device comprises a middle part, a first sub-part and a second sub-part; one side of the middle part close to the adsorption surface is provided with at least one middle adsorption piece; the first sub-part comprises a first swing arm rotatably connected to the middle part and at least one first absorbing part arranged on one side of the first swing arm close to the absorbing surface; the second sub-part comprises a second swing arm which is rotatably connected with the middle part and at least one second adsorption piece which is arranged on one side of the second swing arm close to the adsorption surface; the display panel bending device is switched between a first state and a second state, wherein an included angle between the first swing arm and the second swing arm is equal to 180 degrees in the first state, and the included angle between the first swing arm and the second swing arm is larger than or smaller than 180 degrees in the second state. The invention can realize the automatic bending of the curved surface display panel, reduce the labor cost and reduce the process time.

Description

Display panel bending device and manufacturing method of curved display panel
Technical Field
The invention relates to the technical field of display, in particular to a display panel bending device and a manufacturing method of a curved display panel adopting the display panel bending device.
Background
The curved surface display panel is display equipment with a radian panel, so that the watching vision of a user is improved, and the visual field of the curved surface display for people is wider. Therefore, the user can experience better film watching effect.
At present, in the manufacturing process of the curved display panel, the panel is often manually conveyed into the curved jig, then the panel is bent to form the curved display panel, and then another panel is manually conveyed into the curved jig to perform the manufacturing process of the next curved display panel, which increases the labor cost and the process time.
Disclosure of Invention
The embodiment of the invention provides a display panel bending device and a manufacturing method of a curved display panel, which can automatically adsorb the display panel and bend the display panel.
An embodiment of the present invention provides a display panel bending apparatus, where the display panel bending apparatus includes an adsorption surface for adsorbing a display panel, and the display panel bending apparatus further includes:
the middle part is provided with at least one middle adsorption piece at one side close to the adsorption surface;
a first sub-part including a first swing arm rotatably connected to the intermediate part and at least one first suction attachment provided on a side of the first swing arm close to the suction surface;
the second sub-part comprises a second swing arm rotationally connected with the middle part and at least one second adsorption piece arranged on one side of the second swing arm close to the adsorption surface;
the display panel bending device is switched between a first state and a second state, the display panel bending device is in the first state, an included angle between the first swing arm and the second swing arm is equal to 180 degrees, and the display panel bending device is in the second state, the included angle between the first swing arm and the second swing arm is larger than or smaller than 180 degrees.
In an embodiment of the invention, the middle portion includes a middle bearing rod, the first suction attachment is disposed on a side of the middle bearing rod close to the suction surface, and the first swing arm and the second swing arm are both rotatably connected to the middle bearing rod.
In an embodiment of the present invention, the first swing arm includes a first sub-rod and a second sub-rod, one end of the first sub-rod is connected to the middle bearing rod, the other end of the first sub-rod is connected to the second sub-rod, and the first suction device is disposed on one side of the second sub-rod close to the suction surface;
the second swing arm comprises a third sub-rod and a fourth sub-rod, one end of the third sub-rod is connected to the middle bearing rod, the other end of the third sub-rod is connected to the fourth sub-rod, and the second adsorption piece is arranged on one side, close to the adsorption surface, of the fourth sub-rod;
when the display panel bending device is in the first state, an included angle between the first sub-rod and the third sub-rod is equal to 180 degrees, and when the display panel bending device is in the second state, the included angle between the first sub-rod and the third sub-rod is larger than or smaller than 180 degrees.
In an embodiment of the present invention, the second sub-bar and the fourth sub-bar are parallel to the middle carrier bar.
In an embodiment of the present invention, the middle portion further includes a middle connection rod, one end of the middle connection rod is connected to the middle bearing rod, and the other end of the middle connection rod extends in a direction close to the adsorption surface and is connected to the middle adsorption member;
the first sub-part further comprises a first connecting rod, one end of the first connecting rod is connected to the second sub-rod, and the other end of the first connecting rod extends in the direction close to the adsorption surface and is connected to the first adsorption part;
the second sub-part further comprises a second connecting rod, one end of the second connecting rod is connected to the fourth sub-rod, and the other end of the second connecting rod extends in the direction close to the adsorption surface and is connected to the second adsorption part.
In one embodiment of the present invention, the length of the intermediate connecting rod in the first state is equal to the length of the intermediate connecting rod in the second state, the length of the first connecting rod in the first state is equal to the length of the first connecting rod in the second state, and the length of the second connecting rod in the first state is equal to the length of the second connecting rod in the second state.
In one embodiment of the present invention, the length of the intermediate connecting rod, the length of the first connecting rod and the length of the second connecting rod are all equal.
In an embodiment of the present invention, the first sub-rod and the third sub-rod are distributed in axial symmetry with respect to the middle carrier rod, and the length of the first sub-rod is equal to that of the third sub-rod.
In an embodiment of the present invention, the display panel bending apparatus further includes a controller at least connected to the first swing arm and the second swing arm, so that a preset included angle is formed between the first swing arm and the second swing arm;
the display panel bending device further comprises a vacuum generator communicated with the middle adsorption piece, the first adsorption piece and the second adsorption piece so as to enable the middle adsorption piece, the first adsorption piece and the second adsorption piece to adsorb the display panel;
the display panel bending device further comprises a vacuum breaking air pipe communicated with the middle adsorption piece, the first adsorption piece and the second adsorption piece, so that the middle adsorption piece, the first adsorption piece and the second adsorption piece release the display panel.
According to the above object of the present invention, there is provided a method for manufacturing a curved display panel, using the display panel bending apparatus, the method comprising:
providing the display panel;
controlling the display panel bending device to switch to the first state, placing the display panel on the adsorption surface of the display panel bending device, and adsorbing the display panel by the intermediate adsorption piece, the first adsorption piece and the second adsorption piece;
and controlling the display panel bending device to switch to the second state, and driving the display panel to bend by the middle adsorption piece, the first adsorption piece and the second adsorption piece so as to obtain the curved display panel.
The invention has the beneficial effects that: the display panel bending device provided by the invention comprises a middle part, a first swing arm and a second swing arm which are rotatably connected with the middle part, and the middle part, the first swing arm and the second swing arm are all provided with adsorption pieces for adsorbing a display panel, so that when the first swing arm and the second swing arm rotate relative to the middle part, the display panel can be driven to be bent to obtain a curved display panel, the automatic manufacture procedure of the curved display panel can be realized, the labor cost is further reduced, and the process time can be reduced.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
Fig. 1 is a schematic top view of a display panel bending apparatus in a first state according to an embodiment of the present invention;
fig. 2 is a schematic front view of a display panel bending apparatus in a first state according to an embodiment of the present invention;
fig. 3 is a schematic top view of a display panel bending apparatus in a second state according to an embodiment of the present invention;
fig. 4 is a schematic front view of a display panel bending apparatus in a second state according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for manufacturing a curved display panel according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
Referring to fig. 1, 2, 3 and 4, the display panel bending apparatus according to an embodiment of the present invention includes an absorption surface for absorbing a display panel, and further includes a middle portion 10, a first sub-portion 20 and a second sub-portion 30.
Wherein, one side of the middle part 10 close to the adsorption surface is provided with at least one middle adsorption piece 11; the first sub-part 20 comprises a first swing arm 22 rotatably connected to the middle part 10 and at least one first suction attachment 21 arranged on the side of the first swing arm 22 close to the suction surface; the second sub-portion 30 includes a second swing arm 32 rotatably connected to the middle portion 10, and at least one second suction member 31 disposed on a side of the second swing arm 32 close to the suction surface.
Further, the display panel bending apparatus switches between a first state and a second state, when the display panel bending apparatus is in the first state, an included angle between the first swing arm 22 and the second swing arm 32 is equal to 180 °, and when the display panel bending apparatus is in the second state, an included angle between the first swing arm 22 and the second swing arm 32 is greater than or less than 180 °.
In the implementation and application process, the display panel bending apparatus provided by the embodiment of the invention includes the middle portion 10, and the first swing arm 22 and the second swing arm 32 rotatably connected to the middle portion 10, and the middle portion 10, the first swing arm 22, and the second swing arm 32 are all provided with the adsorption members for adsorbing the display panel, so that when the first swing arm 22 and the second swing arm 32 rotate relative to the middle portion 10, the display panel can be driven to bend to obtain the curved display panel.
Specifically, with continued reference to fig. 1, fig. 2, fig. 3, and fig. 4, the display panel bending apparatus includes an absorption surface for absorbing the display panel, that is, a surface of the display panel bending apparatus for absorbing the display panel, which may be a plane or a curved surface in different states.
The display panel bending apparatus further includes a middle portion 10, a first sub-portion 20, and a second sub-portion 30.
The middle portion 10 includes a middle support rod 12, at least one middle absorption member 11 and at least one middle connection rod 13, wherein one end of each middle connection rod 13 is connected to the middle support rod 12, and the other end extends along a direction close to the absorption surface and is correspondingly connected to the middle absorption member 11, that is, the first middle connection rod 13 is correspondingly connected to the middle absorption member 11, so that the at least one middle absorption member 11 is located on a side of the middle portion 10 close to the absorption surface.
Optionally, in the embodiment of the present invention, the number of the middle suction members 11 is two, and in other embodiments of the present invention, the number of the middle suction members 11 may also be one, three, four, and the like, which is not limited herein. Correspondingly, the number of the intermediate connection rods 13 is equal to the number of the intermediate suction members 11, and is connected to the corresponding intermediate suction members 11.
The first sub-portion 20 includes a first swing arm 22 and a first suction accessory 21 disposed on a side of the first swing arm 22 close to the suction surface, wherein the first swing arm 22 includes a first sub-rod 221 and a second sub-rod 222, one end of the first sub-rod 221 is rotatably connected to the middle support rod 12, so that the first swing arm 22 can rotate relative to the middle support rod 12, and the other end of the first sub-rod 221 is connected to the second sub-rod 222.
In the embodiment of the present invention, the second sub-bar 222 is perpendicular to the first sub-bar 221, and the first sub-bar 221 is perpendicular to the middle carrier bar 12, in other embodiments of the present invention, the included angle between the first sub-bar 221 and the second sub-bar 222 and the included angle between the first sub-bar 221 and the middle carrier bar 12 may be any other angle, and are not limited herein.
The first sub-section 20 further includes at least one first connecting rod 13, and each first connecting rod 13 has one end connected to the second sub-rod 222 and the other end extending in a direction close to the suction surface and connected to a corresponding first suction member 21, so that the corresponding first suction member 21 is located on a side of the first sub-section 20 close to the suction surface.
In the embodiment of the present invention, the first connecting rod 13 is correspondingly connected to a first suction attachment 21. Alternatively, the number of the first suction members 21 is two, and in other embodiments of the present invention, the number of the first suction members 21 may also be one, three, four, and the like, which is not limited herein. Correspondingly, the number of the first connecting rods 13 is equal to the number of the first suction attachments 21, and is connected with the corresponding first suction attachments 21.
The second sub-portion 30 includes a second swing arm 32 and a second absorption member 31 disposed on a side of the second swing arm 32 close to the absorption surface, wherein the second swing arm 32 includes a third sub-rod 321 and a fourth sub-rod 322, one end of the third sub-rod 321 is rotatably connected to the middle support rod 12, so that the second swing arm 32 can rotate relative to the middle support rod 12, and the other end of the third sub-rod 321 is connected to the fourth sub-rod 322.
In the embodiment of the present invention, the third sub-rod 321 is perpendicular to the fourth sub-rod 322, and the third sub-rod 321 is perpendicular to the middle carrier rod 12, in other embodiments of the present invention, an included angle between the third sub-rod 321 and the fourth sub-rod 322 and an included angle between the third sub-rod 321 and the middle carrier rod 12 may be any other angle, and are not limited herein.
The second sub-section 30 further includes at least one second connecting rod 33, one end of each second connecting rod 33 is connected to the fourth sub-rod 322, and the other end extends in a direction close to the absorption surface and is connected to a corresponding second absorption member 31, so that the corresponding second absorption member 31 is located on a side of the second sub-section 30 close to the absorption surface.
In the embodiment of the present invention, a second connecting rod 33 is correspondingly connected to a second absorbing member 31. Alternatively, the number of the second adsorption members 31 is two, and in other embodiments of the present invention, the number of the second adsorption members 31 may also be one, three, four, and the like, which is not limited herein. Correspondingly, the number of the second connection rods 33 is equal to the number of the second suction members 31, and is connected to the corresponding second suction members 31.
In the embodiment of the present invention, the first sub-rod 221 and the third sub-rod 321 are both rotatably connected to the middle support rod 12, and the first sub-rod 221 and the third sub-rod 321 can respectively drive the first absorbing part 21 and the second absorbing part 31 to rotate relative to the middle support rod 12 in the process of rotating relative to the middle support rod 12, that is, the first swing arm 22 and the second swing arm 32 can respectively drive the first absorbing part 21 and the second absorbing part 31 to rotate relative to the middle support rod 12 in the process of rotating relative to the middle support rod 12, so that when the first absorbing part 21, the second absorbing part 31, and the middle absorbing part 11 absorb a display panel, the middle absorbing part 11 can be fixed, and the first absorbing part 21 and the second absorbing part 31 can be driven by the first swing arm 22 and the second swing arm 32 to rotate relative to the middle support rod 12, so as to drive two sides of the display panel to bend relative to the middle, thereby obtaining a curved display panel.
It should be noted that, when the display panel bending apparatus is in the first state, the included angle between the first sub-bar 221 and the third sub-bar 321 is equal to 180 °, and when the display panel bending apparatus is in the second state, the included angle between the first sub-bar 221 and the third sub-bar 321 is greater than or less than 180 °. When the first sub-rod 221 and the third sub-rod 321 rotate along a side close to the adsorption surface relative to the middle carrier rod 12, the middle adsorption member 11 adsorbs the middle of the display panel to fix the display panel, and the first adsorption member 21 and the second adsorption member 31 adsorb two sides of the display panel and push the two sides close to the adsorption surface to bend the two sides of the display panel; alternatively, when the first sub-rod 221 and the third sub-rod 321 rotate along a side far from the absorption surface with respect to the middle carrier rod 12, the middle absorption member 11 absorbs the middle of the display panel to fix the middle, and the first absorption member 21 and the second absorption member 31 absorb two sides of the display panel and pull the two sides far from the absorption surface, so that the two sides of the display panel bend.
Preferably, the second sub-bar 222 is disposed at an end of the first sub-bar 221 away from the middle support bar 12, the fourth sub-bar 322 is disposed at an end of the third sub-bar 321 away from the middle support bar 12, and both the second sub-bar 222 and the fourth sub-bar 322 are parallel to the middle support bar 12, and preferably, the lengths of the first sub-bar 221 and the third sub-bar 321 are equal, so that the first sub-bar 221 and the third sub-bar 321 are axisymmetrically distributed with respect to the middle support bar 12, and the second sub-bar 222 and the fourth sub-bar 322 are axisymmetrically distributed with respect to the middle support bar 12, that is, the first swing arm 22 and the second swing arm 32 are axisymmetrically distributed with respect to the middle support bar 12. Furthermore, the number of the middle suction pieces 11, the number of the first suction pieces 21, and the number of the second suction pieces 31 are all equal, and the at least one first suction piece 21 and the at least one second suction piece 31 can be distributed in axial symmetry with respect to the middle carrier bar 12, and in the embodiment of the invention, the suction capacities of the first sub-portion 20 and the second sub-portion 30 in the display panel bending device to both sides of the display panel are the same and symmetrical, so that the bending yield of the display panel can be improved, and the bending effect and stability of the curved display panel can be improved.
In the embodiment of the present invention, the at least one intermediate absorbing element 11, the at least one first absorbing element 21 and the at least one second absorbing element 31 are all arranged along the extending direction of the intermediate carrying rod 12 (along the extending direction of the second sub-rod 222 and along the extending direction of the fourth sub-rod 322), wherein one intermediate absorbing element 11 is aligned with a corresponding first absorbing element 21 and a corresponding second absorbing element 31. For example, as shown in fig. 1, the number of the middle suction members 11, the first suction members 21 and the second suction members 31 is 2, and one of the middle suction members 11, one of the first suction members 21 and one of the second suction members 31 are located on the same straight line, while the other middle suction member 11, the other first suction member 21 and the other second suction member 31 are located on the same straight line. Similarly, when the number of the intermediate absorbing members 11, the first absorbing members 21 and the second absorbing members 31 is greater or less, the number of the intermediate absorbing members 11, the number of the first absorbing members 21 and the number of the second absorbing members 31 are equal, and one intermediate absorbing member 11 and a corresponding first absorbing member 21 and a corresponding second absorbing member 31 are disposed on the same straight line.
In the embodiment of the present invention, the length of the intermediate connecting rod 13, the length of the first connecting rod 23, and the length of the second connecting rod 33 are all unchanged, the length of the intermediate connecting rod 13 in the first state is equal to the length of the intermediate connecting rod 13 in the second state, the length of the first connecting rod 23 in the first state is equal to the length of the first connecting rod 23 in the second state, and the length of the second connecting rod 33 in the first state is equal to the length of the second connecting rod 33 in the second state.
Further, the length of the intermediate link 13, the length of the first link 23, and the length of the second link 33 are all equal.
In other embodiments of the present invention, the length of the intermediate link 13, the length of the first link 23, and the length of the second link 33 may also be varied according to the requirement of the display panel bending process, and are not limited herein.
Optionally, the middle suction member 11, the first suction member 21, and the second suction member 31 each include a support member and a suction cup, one side of the support member is connected to the middle connecting rod 13, the first connecting rod 23, and the second connecting rod 33, and the other side of the support member is connected to the suction cup, so as to fix and support the suction cup. On the other hand, the intermediate suction member 11, the first suction member 21 and the second suction member 31 may also rotate with respect to the intermediate connecting rod 13, the first connecting rod 23 and the second connecting rod 33, respectively, to finely adjust the curvature of the curved display panel during the bending of the display panel.
In addition, in the embodiment of the present invention, the display panel bending apparatus further includes a controller, a vacuum generator 43, a vacuum breaking valve 44, and a vacuum breaking air pipe 45.
The controller includes a curved surface switching valve 41 disposed on the middle bearing rod 12 and air cylinders 42 disposed on the first swing arm 22 and the second swing arm 32, and when the curved surface switching valve 41 is switched to a curved surface state, i.e., a second state, the air cylinders 42 drive the first swing arm 22 and the second swing arm 32 to rotate relative to the middle bearing rod 12, so that an included angle between the first swing arm 22 and the second swing arm 32 is greater than 180 ° or less than 180 °, and further when the middle absorbing member 11, the first absorbing member 21, and the second absorbing member 31 absorb the display panel, the display panel can be driven to bend; when the curved plane switching valve 41 is switched to the flat plane, i.e. the first state, the air cylinder 42 will drive the first swing arm 22 and the second swing arm 32 to rotate relative to the middle bearing rod 12, so that the included angle between the first swing arm 22 and the second swing arm 32 is equal to 180 °, and further, when the middle absorption piece 11, the first absorption piece 21 and the second absorption piece 31 absorb the display panel, the flat display panel can be absorbed without bending the display panel.
In the embodiment of the present invention, the controller further includes a logic controller, and the logic controller can be connected to the curved plane switching valve 41 and the air cylinder 42, and set a program in the logic controller, so that the air cylinder 42 bends the display panel to a preset curvature, specifically, the rotation angles of the first swing arm 22 and the second swing arm 32 can be controlled, so as to bend the display panel to the preset curvature.
The vacuum generator 43 may be disposed on the second sub-rod 222 and/or the fourth sub-rod 322, and the vacuum generator 43 may be communicated with the middle absorption member 11, the first absorption member 21 and the second absorption member 31 through pipes disposed in the middle bearing rod 12, the first swing arm 22, the first connection rod 23, the second swing arm 32 and the second connection rod 33, so that when the middle absorption member 11, the first absorption member 21 and the second absorption member 31 contact the display panel, vacuum may be formed in the middle absorption member 11, the first absorption member 21 and the second absorption member 31, and the display panel may be absorbed by a pressure difference, so as to facilitate a subsequent bending process.
The vacuum breaking valve 44 may be disposed on the middle support rod 12, the vacuum breaking air pipe 45 may be disposed on the second sub-rod 222 and/or the fourth sub-rod 322, and the vacuum breaking air pipe 45 is communicated with the middle suction member 11, the first suction member 21 and the second suction member 31 through pipes disposed in the middle support rod 12, the first swing arm 22, the first connecting rod 23, the second swing arm 32 and the second connecting rod 33. The vacuum breaking valve 44 is opened to allow the vacuum breaking air pipe 45 to introduce air into the intermediate adsorption member 11, the first adsorption member 21 and the second adsorption member 31, so as to break vacuum, and allow the intermediate adsorption member 11, the first adsorption member 21 and the second adsorption member 31 to release the display panel, and when the vacuum breaking valve 44 is closed, the air introduction into the intermediate adsorption member 11, the first adsorption member 21 and the second adsorption member 31 is stopped.
Optionally, the gas introduced into the vacuum breaking gas pipe 45 may be dry air or nitrogen.
In summary, the display panel bending apparatus provided by the embodiment of the present invention includes an intermediate portion 10, and a first swing arm 22 and a second swing arm 32 rotatably connected to the intermediate portion 10, and the intermediate portion 10, the first swing arm 22, and the second swing arm 32 are all provided with an absorption member for absorbing a display panel, so that when the first swing arm 22 and the second swing arm 32 rotate relative to the intermediate portion 10, the display panel can be driven to bend to obtain a curved display panel. On the other hand, the embodiment of the present invention can form the preset included angle between the first swing arm 22 and the second swing arm 32 by setting the logic controller, so as to bend the display panel to the preset curvature, and compared to the prior art that the curvature of the display panel needs to be detected after the display panel is manually conveyed to the bending jig for bending, the embodiment of the present invention can directly bend the display panel to the preset curvature, so that the process of detecting the curvature can be omitted, the labor cost is further reduced, and the process time is reduced.
In addition, the embodiment of the invention also provides a manufacturing method of the curved-surface display panel, and the manufacturing method of the display panel adopts the display panel bending device in the embodiment.
Specifically, referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the method for manufacturing the display panel includes the following steps:
s10, providing the display panel 51.
Alternatively, the display panel 51 may be a liquid crystal display panel or an organic light emitting diode display panel.
And S20, controlling the display panel bending device to switch to the first state, placing the display panel on the adsorption surface of the display panel bending device, and adsorbing the display panel by the middle adsorption piece, the first adsorption piece and the second adsorption piece.
The curved plane switching valve is switched to a plane state, that is, the display panel bending apparatus is controlled to be in a first state, at this time, an included angle between the first sub-rod 221 and the third sub-rod 321 is 180 °, and the middle absorbent member 11, the first absorbent member 21, and the second absorbent member 31 are located on the same horizontal plane.
The display panel 51 is placed on the suction surface of the display panel bending apparatus, that is, one side surface of the display panel bending apparatus provided with the middle suction member 11, the first suction member 21 and the second suction member 31, and when the middle suction member 11, the first suction member 21 and the second suction member 31 abut against the display panel 51, the vacuum generator 43 is controlled to be turned on, so that the interiors of the middle suction member 11, the first suction member 21 and the second suction member 31 are vacuumed, and the middle suction member 11, the first suction member 21 and the second suction member 31 suck the display panel 51.
It is understood that the middle suction member 11, the first suction member 21 and the second suction member 31 each include a suction cup abutting against the display panel 51, and the display panel 51 is sucked by the pressure difference when the suction cup is vacuum.
And S30, controlling the display panel bending device to switch to the second state, and driving the display panel to bend by the middle adsorption piece, the first adsorption piece and the second adsorption piece to obtain the curved display panel.
A preset included angle after the first sub-rod 221 and the second sub-rod 222 rotate is set in the logic controller, so that the display panel 51 is bent to have a predetermined curvature, and then the curved surface switching valve is switched to a curved surface state, i.e., controls the display panel bending apparatus to be in the second state, at this time, the air cylinder 42 drives the first sub-rod 221 and the third sub-rod 321 to rotate relative to the middle carrier rod 12, i.e. the first swing arm 22 and the second swing arm 32 are driven to rotate relative to the intermediate carrier bar 12, thereby driving the first absorption piece 21 and the second absorption piece 31 to rotate relative to the middle bearing rod 12, and the middle absorption piece 11 absorbs the middle of the display panel 51 and is fixed, so as to drive the two sides of the display panel 51 to bend, and finally the first sub-rod 221 and the second sub-rod 222 rotate to the position of the preset included angle, so as to bend the display panel 51 to the preset curvature, thereby obtaining the curved display panel 52.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The display panel bending apparatus and the method for manufacturing the curved display panel provided by the embodiment of the present invention are described in detail above, and a specific example is applied to illustrate the principle and the implementation of the present invention herein, and the description of the above embodiment is only used to help understanding the technical solution and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A display panel bending apparatus, comprising an adsorption surface for adsorbing a display panel, and further comprising:
the middle part is provided with at least one middle adsorption piece at one side close to the adsorption surface;
a first sub-part including a first swing arm rotatably connected to the intermediate part and at least one first suction attachment provided on a side of the first swing arm close to the suction surface;
the second sub-part comprises a second swing arm rotationally connected with the middle part and at least one second adsorption piece arranged on one side of the second swing arm close to the adsorption surface;
the display panel bending device is switched between a first state and a second state, the display panel bending device is in the first state, an included angle between the first swing arm and the second swing arm is equal to 180 degrees, and the display panel bending device is in the second state, the included angle between the first swing arm and the second swing arm is larger than or smaller than 180 degrees.
2. The display panel bending apparatus according to claim 1, wherein the middle portion comprises a middle support rod, the first suction device is disposed on a side of the middle support rod close to the suction surface, and the first swing arm and the second swing arm are both rotatably connected to the middle support rod.
3. The display panel bending apparatus according to claim 2, wherein the first swing arm comprises a first sub-rod and a second sub-rod, one end of the first sub-rod is connected to the middle carrier rod, the other end of the first sub-rod is connected to the second sub-rod, and the first suction device is disposed on a side of the second sub-rod close to the suction surface;
the second swing arm comprises a third sub-rod and a fourth sub-rod, one end of the third sub-rod is connected to the middle bearing rod, the other end of the third sub-rod is connected to the fourth sub-rod, and the second adsorption piece is arranged on one side, close to the adsorption surface, of the fourth sub-rod;
when the display panel bending device is in the first state, an included angle between the first sub-rod and the third sub-rod is equal to 180 degrees, and when the display panel bending device is in the second state, the included angle between the first sub-rod and the third sub-rod is larger than or smaller than 180 degrees.
4. The display panel bending apparatus according to claim 3, wherein the second sub-bar and the fourth sub-bar are parallel to the middle carrier bar.
5. The display panel bending apparatus according to claim 3, wherein the middle portion further comprises a middle connection bar, one end of the middle connection bar is connected to the middle carrier bar, and the other end of the middle connection bar extends in a direction close to the suction surface and is connected to the middle suction member;
the first sub-part further comprises a first connecting rod, one end of the first connecting rod is connected to the second sub-rod, and the other end of the first connecting rod extends in the direction close to the adsorption surface and is connected to the first adsorption part;
the second sub-part further comprises a second connecting rod, one end of the second connecting rod is connected to the fourth sub-rod, and the other end of the second connecting rod extends in the direction close to the adsorption surface and is connected to the second adsorption part.
6. The display panel bending apparatus according to claim 5, wherein the length of the intermediate link bar in the first state is equal to the length of the intermediate link bar in the second state, the length of the first link bar in the first state is equal to the length of the first link bar in the second state, and the length of the second link bar in the first state is equal to the length of the second link bar in the second state.
7. The display panel bending apparatus according to claim 6, wherein the length of the intermediate connecting rod, the length of the first connecting rod, and the length of the second connecting rod are all equal.
8. The display panel bending apparatus according to claim 3, wherein the first sub-bar and the third sub-bar are axisymmetrically distributed with respect to the middle carrier bar, and the length of the first sub-bar is equal to that of the third sub-bar.
9. The display panel bending apparatus according to claim 2, further comprising a controller connected to at least the first swing arm and the second swing arm, so that a preset included angle is formed between the first swing arm and the second swing arm;
the display panel bending device further comprises a vacuum generator communicated with the middle adsorption piece, the first adsorption piece and the second adsorption piece so as to enable the middle adsorption piece, the first adsorption piece and the second adsorption piece to adsorb the display panel;
the display panel bending device further comprises a vacuum breaking air pipe communicated with the middle adsorption piece, the first adsorption piece and the second adsorption piece, so that the middle adsorption piece, the first adsorption piece and the second adsorption piece release the display panel.
10. A method for manufacturing a curved display panel, using the display panel bending apparatus according to any one of claims 1 to 9, the method comprising:
providing the display panel;
controlling the display panel bending device to switch to the first state, placing the display panel on the adsorption surface of the display panel bending device, and adsorbing the display panel by the intermediate adsorption piece, the first adsorption piece and the second adsorption piece;
and controlling the display panel bending device to switch to the second state, and driving the display panel to bend by the middle adsorption piece, the first adsorption piece and the second adsorption piece so as to obtain the curved display panel.
CN202210216292.7A 2022-03-07 2022-03-07 Display panel bending device and manufacturing method of curved display panel Pending CN114446183A (en)

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CN202210216292.7A CN114446183A (en) 2022-03-07 2022-03-07 Display panel bending device and manufacturing method of curved display panel

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Application Number Priority Date Filing Date Title
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Citations (8)

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CN103715125A (en) * 2012-09-28 2014-04-09 株式会社日立高新技术 Plate-shaped member holding mechanism, substrate bonding device and substrate bonding method
CN106185326A (en) * 2016-08-29 2016-12-07 苏州朗坤自动化设备有限公司 A kind of stable type song screen carrying mechanism
CN106292002A (en) * 2016-08-12 2017-01-04 京东方科技集团股份有限公司 Application of a surface device and method
CN106737297A (en) * 2017-01-03 2017-05-31 京东方科技集团股份有限公司 A kind of curved surface assembles equipment
CN207250029U (en) * 2017-10-20 2018-04-17 北京京东方显示技术有限公司 A kind of display panel bends gauge
KR20210105491A (en) * 2020-02-18 2021-08-27 (주)금성다이아몬드 vacuum adsorber for flexible display
CN113510736A (en) * 2021-08-23 2021-10-19 苏州奇达创机械有限公司 Curved surface adsorption apparatus constructs
CN215151764U (en) * 2020-12-14 2021-12-14 深圳市腾盛精密装备股份有限公司 Bending device of display panel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103715125A (en) * 2012-09-28 2014-04-09 株式会社日立高新技术 Plate-shaped member holding mechanism, substrate bonding device and substrate bonding method
CN106292002A (en) * 2016-08-12 2017-01-04 京东方科技集团股份有限公司 Application of a surface device and method
CN106185326A (en) * 2016-08-29 2016-12-07 苏州朗坤自动化设备有限公司 A kind of stable type song screen carrying mechanism
CN106737297A (en) * 2017-01-03 2017-05-31 京东方科技集团股份有限公司 A kind of curved surface assembles equipment
CN207250029U (en) * 2017-10-20 2018-04-17 北京京东方显示技术有限公司 A kind of display panel bends gauge
KR20210105491A (en) * 2020-02-18 2021-08-27 (주)금성다이아몬드 vacuum adsorber for flexible display
CN215151764U (en) * 2020-12-14 2021-12-14 深圳市腾盛精密装备股份有限公司 Bending device of display panel
CN113510736A (en) * 2021-08-23 2021-10-19 苏州奇达创机械有限公司 Curved surface adsorption apparatus constructs

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Application publication date: 20220506