CN110667101A

CN110667101A - Flexible OLED screen OCA laminating device

Info

Publication number: CN110667101A
Application number: CN201911053865.3A
Authority: CN
Inventors: 高军鹏
Original assignee: Shenzhen Etmade Automatic Equipment Co Ltd
Current assignee: Shenzhen Etmade Automatic Equipment Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-01-10

Abstract

The invention discloses an OCA (optical clear adhesive) laminating device for a flexible OLED (organic light emitting diode) screen, which comprises a laminating longitudinal module, a laminating transverse module, a laminating lifting motor, a laminating lifting slide seat and a laminating head, wherein the laminating longitudinal module is arranged above a transmission line body of a laminating machine and an OCA (optical clear adhesive) film tearing mechanism in a spanning mode; the laminating transverse module is connected to the output end of the laminating longitudinal module; the laminating lifting motor is connected to the output end of the laminating transverse module, and the output end of the laminating lifting motor is arranged downwards; the laminating lifting slide seat is connected with the output end of the laminating lifting motor through a screw rod; the laminating head is connected to the laminating lifting slide seat and moves along with the laminating lifting slide seat; the bonding head comprises a rotation correction component, a bonding plate, a pressing plate component, a pressing roller component and an air pressure component. The invention realizes edge bonding by adopting a single-side movable rotating structure, has sequential synergistic action of bonding, rolling and air pressure, and greatly improves the bonding stability and the bonding thickness uniformity.

Description

Flexible OLED screen OCA laminating device

Technical Field

The invention relates to the field of automatic manufacturing, in particular to an OCA (optical clear adhesive) laminating device for a flexible OLED screen.

Background

The flat panel display device is a man-machine interaction carrier for realizing character and image display, and mainly comprises a display module, a backlight module and a touch module, wherein the display module comprises a display panel, a polaroid, a driving chip (IC), a circuit board (PCB, FPC) and the like. The production of the flat panel display device is divided into a front section array, a box forming process and a rear section module assembling process. The front-stage process is used for producing the display panel, and the rear-stage process is used for assembling the display panel, the polaroid, the backlight module, the touch module and other components into the flat panel display device. The former-stage production equipment is mainly provided by Japan, Korea and American enterprises at present, and is basically not produced by oneself in China; in the production equipment of the later process, a few domestic enterprises have realized breakthrough, and the replacement of imported equipment is gradually realized at present. The display panel is a main component for realizing a display function, and in order to assemble a display device, polarizers are required to be attached to two sides of the panel (an LCD panel needs to be attached with one polarizer at each of the upper and lower sides, and an OLED panel needs to be attached with one polarizer at the upper side) to realize directional propagation of light.

In order to ensure the stability of the attachment of the polarizer and the OLED panel, the attachment process requires that transparent OCA (optically clear adhesive) is attached to the OLED panel, and the adhesion function can be realized through the OCA; therefore, it is desirable to design an automatic attaching apparatus for attaching the OCA to the OLED. Because subsequent polaroid laminating technology is directly influenced to precision, thickness homogeneity and the stability of laminating of OCA laminating, consequently, need independently research and develop a new laminating device to OCA laminating.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art, and provides an OCA (optical clear adhesive) device for a flexible OLED screen, which adopts a single-side movable rotating structure to realize edge bonding, has the sequential synergistic action of bonding, rolling and air pressure, and greatly improves the bonding stability and the bonding thickness uniformity.

The technical scheme adopted by the invention is as follows: an OCA laminating device of a flexible OLED screen comprises a laminating longitudinal module, a laminating transverse module, a laminating lifting motor, a laminating lifting slide seat and a laminating head, wherein the laminating longitudinal module is arranged above a transmission line body of a laminating machine and an OCA film tearing mechanism in a spanning mode; the laminating transverse module is connected to the output end of the laminating longitudinal module; the laminating lifting motor is connected to the output end of the laminating transverse module, and the output end of the laminating lifting motor is arranged downwards; the laminating lifting slide seat is connected with the output end of the laminating lifting motor through a screw rod; the laminating head is connected to the laminating lifting slide seat and moves along with the laminating lifting slide seat; the laminating head comprises a rotary correcting part, a laminating plate, a pressing plate part, a pressing roller part and an air pressure part, wherein the rotary correcting part is connected to the lower part of the laminating lifting slide seat, the output end of the rotary correcting part is arranged downwards, the laminating plate is connected to the output end of the rotary correcting part, the position of the laminating plate is adjusted through the rotary correcting part, and the bottom of the laminating plate adsorbs OCA to be laminated through a vacuum suction hole; one side of the attaching plate is rotatably connected with the rotary correcting component; the pressing plate component is arranged on the other side of the attaching plate, the upper portion of the pressing plate component is connected with the rotation correcting component, the lower portion of the pressing plate component is connected with the attaching plate, and the other side of the attaching plate is driven to rotate downwards, so that when attaching is conducted, one side of the OCA is attached to the flexible OLED firstly, and attaching is completed through continuous rotation; the pressing roll component is connected to the outer side of the pressing plate component, and the output end of the pressing roll component is arranged downwards and is pressed onto the attached OCA downwards; above-mentioned atmospheric pressure part sets up in the outside of compression roller part, and the output sets up down, and after the good OCA of compression roller part roll-in, OCA is pressed close to atmospheric pressure part to pressurize to OCA through decurrent atmospheric pressure.

Preferably, the pressure plate component comprises a pressure plate cylinder, a pressure plate sliding seat, a pressure plate wheel, a pressure bearing seat and an extension spring, wherein the pressure plate cylinder is connected to one side of the rotary correcting component, and the output end of the pressure plate cylinder is arranged downwards; the pressing plate sliding seat is connected to the output end of the pressing plate cylinder, and the bottom of the pressing plate sliding seat is rotatably connected with the pressing plate wheel.

Preferably, the vertical setting of pressurized support on attaching plate opposite side upper portion, pressurized support upper portion is equipped with horizontally pressurized platform, clamp plate cylinder drive clamp plate wheel pushes down to the pressurized support on, makes the pressurized support push down the opposite side of attaching plate, makes the attaching plate rotate around one side, the OCA of attaching plate opposite side contacts flexible OLED earlier.

Preferably, the extension spring is vertically connected to the attachment plate and the rotation correction member, and the extension spring pulls the other side of the attachment plate upward in a natural state.

Preferably, the rotation correction component is a rotation correction motor, the output end of the rotation correction motor is connected with the fitting base, and the rotation correction motor drives the fitting base to rotate; a rotary seat is arranged at the lower part of one side of the attaching base; one side of the attaching plate is rotatably connected with the rotating seat through a rotating shaft.

Preferably, the compression roller component comprises a compression roller cylinder, a compression roller sliding seat and a lower compression roller, wherein the compression roller cylinder is vertically connected to the outer side wall of the compression support, and the output end of the compression roller cylinder is arranged downwards; the compression roller sliding seat is connected to the side wall of the compression support in a sliding mode along the vertical direction and is connected with the output end of the compression roller cylinder.

Preferably, the lower pressing roller is rotatably connected to the lower end of the pressing roller sliding seat and extends downwards to the outer side of the other side of the attaching plate; the compression roller cylinder drives the lower compression roller to slide downwards along the arc-shaped transition surface arranged on the outer side wall of the other side of the attaching plate so as to roll and attach the OCA part.

Preferably, the air pressure component comprises an air pressure cylinder, an air pressure sliding seat and an air pressure seat, wherein the air pressure cylinder is connected to the side wall of the press roller sliding seat, and the output end of the air pressure cylinder is arranged downwards; the air pressure sliding seat is connected to the press roller sliding seat in a sliding mode and is connected with the output end of the air pressure cylinder.

Preferably, the air pressure seat is connected to the press roller sliding seat and extends downwards to the outer side of the lower press roller, an air hole is formed in the bottom of the air pressure seat, and the air pressure cylinder drives the air pressure seat to be close to the rolled OCA and continuously acts on the OCA through air pressure to maintain pressure.

The invention has the beneficial effects that:

aiming at the defects and shortcomings in the prior art, the invention independently develops and designs the flexible OLED screen OCA laminating device which adopts a single-side movable rotating structure to realize side lamination, has the sequential synergistic action of lamination, rolling and air pressure and greatly improves the laminating stability and the laminating thickness uniformity.

After the attaching plate takes out the OCA sheet from the moving platform through vacuum negative pressure, the angle of the OCA sheet is corrected and aligned by utilizing the rotary correcting part; the laminating plate adopts a rotatable structural design, one side of the laminating plate is rotatably connected to a rotating seat arranged at the lower part of a laminating base through a rotating shaft, the other side of the laminating plate is connected to the laminating base through a tension spring, and the laminating plate is pulled upwards by the tension of the tension spring in a natural state. In order to ensure the bonding stability of the attached OCA and the thickness uniformity of the OCA glue, a pressing plate component, a pressing roller component and an air pressure component are designed on the other movable side of the attaching plate, wherein the pressing plate component comprises two parts which are arranged up and down, the upper part of the pressing plate component is connected to a rotation correction component, a pressing plate air cylinder on the upper part drives a pressing plate sliding seat to drive a pressing plate wheel which is rotatably connected to the lower part of the pressing plate sliding seat to move downwards, a pressed support on the lower part of the pressing plate sliding seat is connected to the attaching plate, the pressed support on the lower part of the pressing plate sliding seat drives the attaching plate to overcome the pulling force of a stretching spring to rotate downwards after receiving the pressure of the pressing plate wheel, so that one side of the OCA at the bottom of the attaching plate; this kind of limit contact formula laminating mode can reduce the laminating bubble effectively, improves laminating stability. Meanwhile, the compression roller component is connected to the side wall of the compression plate sliding seat of the compression plate component, the compression roller cylinder of the compression roller component drives the compression roller sliding seat to drive the lower compression roller which is rotatably connected to the bottom of the compression roller sliding seat to gradually compress the lower compression roller to the OCA part attached to the OLED panel along the arc-shaped transition surface arranged on the outer side wall of the other side of the attaching plate, and the lower compression roller rolls the attached OCA in a coordinated manner along with the attaching plate to attach the OCA continuously, so that the thickness uniformity of the attached OCA is ensured. In addition, the outer side of the press roll component is also provided with the air pressure component, the air pressure cylinder and the air pressure sliding seat of the air pressure component are both connected to the press roll sliding seat, the air cylinder drives the air pressure sliding seat to independently lift, so that the air pressure seat arranged at the bottom of the air pressure sliding seat is close to the OCA from the outer side of the lower press roll, the OCA rolled by the lower press roll is continuously pressed and held by high-pressure air led out from the bottom of the air pressure seat, the OCA after the lower press roll is prevented from rebounding upwards due to self tension, the pressure holding function is realized, the attaching stability and the attaching thickness uniformity of the OCA are further ensured, and the attaching.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is an enlarged schematic view of the structure of FIG. 1.

Fig. 3 is a schematic perspective view of the second embodiment of the present invention.

Fig. 4 is a third schematic perspective view of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1 to 4, the technical solution adopted by the present invention is as follows: an OCA (optical clear adhesive) laminating device for a flexible OLED screen comprises a laminating longitudinal module 81, a laminating transverse module 82, a laminating lifting motor 83, a laminating lifting slide seat 84 and a laminating head, wherein the laminating longitudinal module 81 spans over a transmission line body of a laminating machine and an OCA (optical clear adhesive) film tearing mechanism; the bonding transverse module 82 is connected to the output end of the bonding longitudinal module 81; the bonding lifting motor 83 is connected to the output end of the bonding transverse module 82, and the output end is arranged downwards; the bonding lifting slide 84 is connected with the output end of a bonding lifting motor 83 through a screw rod; the bonding head is connected to the bonding lifting slide 84 and moves along with the bonding lifting slide 84; the laminating head comprises a rotary correcting part, a laminating plate 85, a pressing plate part, a pressing roller part and an air pressure part, wherein the rotary correcting part is connected to the lower part of the laminating lifting slide seat 84, the output end of the rotary correcting part is arranged downwards, the laminating plate 85 is connected to the output end of the rotary correcting part, and the position of the laminating plate 85 is adjusted by the rotary correcting part, so that the bottom of the laminating plate 85 adsorbs OCA to be laminated through a vacuum suction hole; one side of the attaching plate 85 is rotatably connected with a rotation correcting member; the pressing plate component is arranged on the other side of the attaching plate 85, the upper portion of the pressing plate component is connected with the rotation correcting component, the lower portion of the pressing plate component is connected with the attaching plate 85, and the other side of the attaching plate 85 is driven to rotate downwards, so that when attaching is conducted, one side of the OCA is attached to the flexible OLED firstly, and attaching is completed through continuous rotation; the pressing roll component is connected to the outer side of the pressing plate component, and the output end of the pressing roll component is arranged downwards and is pressed onto the attached OCA downwards; above-mentioned atmospheric pressure part sets up in the outside of compression roller part, and the output sets up down, and after the good OCA of compression roller part roll-in, OCA is pressed close to atmospheric pressure part to pressurize to OCA through decurrent atmospheric pressure.

The pressing plate component comprises a pressing plate cylinder 86, a pressing plate sliding seat 87, a pressing plate wheel 88, a pressed support 89 and an extension spring 819, wherein the pressing plate cylinder 86 is connected to one side of the rotation correcting component, and the output end of the pressing plate cylinder is arranged downwards; the pressing plate sliding base 87 is connected to the output end of the pressing plate cylinder 86, and the pressing plate wheel 88 is rotatably connected to the bottom of the pressing plate sliding base 87.

Vertical setting of pressurized support 89 is on binding board 85 opposite side upper portion, and pressurized support 89 upper portion is equipped with horizontally pressurized platform, and clamp plate cylinder 86 drive pinch roller 88 pushes down to pressurized support 89 on, makes pressurized support 89 push down binding board 85's opposite side, makes binding board 85 rotatory around one side, and the OCA of binding board 85 opposite side contacts flexible OLED earlier.

The extension spring 819 is vertically connected to the attachment plate 85 and the rotation correcting unit, and the extension spring 819 naturally pulls up the other side of the attachment plate 85.

The rotation correcting component is a rotation correcting motor 816, the output end of the rotation correcting motor 816 is connected with a fitting base 817, and the rotation correcting motor 816 drives the fitting base 817 to rotate; a rotary seat 818 is arranged at the lower part of one side of the fitting base 817; one side of the engaging plate 85 is rotatably connected to the rotating base 818 through a rotating shaft.

The compression roller component comprises a compression roller cylinder 810, a compression roller sliding seat 811 and a lower compression roller 812, wherein the compression roller cylinder 810 is vertically connected to the outer side wall of the compression support 89, and the output end of the compression roller cylinder is arranged downwards; the above-mentioned press roller slide 811 is slidably coupled to a sidewall of the press bearing 89 in a vertical direction, and is connected to an output end of the press roller cylinder 810.

The lower press roller 812 is rotatably connected to the lower end of the press roller sliding seat 811 and extends downward to the outside of the other side of the attachment plate 85; the pressing roller cylinder 810 drives the lower pressing roller 812 to slide down along an arc-shaped transition surface formed on the outer side wall of the other side of the attaching plate 85, so as to roll the attached OCA portion.

The air pressure component comprises an air pressure cylinder 813, an air pressure sliding seat 814 and an air pressure seat 815, wherein the air pressure cylinder 813 is connected to the side wall of the compression roller sliding seat 811, and the output end of the air pressure cylinder is arranged downwards; the pneumatic slider 814 is slidably coupled to the press roller slider 811 and is connected to an output end of the pneumatic cylinder 813.

The air pressure seat 815 is connected to the compression roller sliding seat 811 and extends downwards to the outer side of the lower compression roller 812, an air hole is formed in the bottom of the air pressure seat 815, and the air pressure cylinder 813 drives the air pressure seat 815 to be close to the rolled OCA and continuously acts on the OCA through air pressure to maintain pressure.

Furthermore, the invention designs the flexible OLED screen OCA laminating device which adopts a single-side movable rotating structure to realize side lamination, has sequential synergistic action of lamination, rolling and air pressure and greatly improves the laminating stability and the laminating thickness uniformity. After the attaching plate takes out the OCA sheet from the moving platform through vacuum negative pressure, the angle of the OCA sheet is corrected and aligned by utilizing the rotary correcting part; the laminating plate adopts a rotatable structural design, one side of the laminating plate is rotatably connected to a rotating seat arranged at the lower part of a laminating base through a rotating shaft, the other side of the laminating plate is connected to the laminating base through a tension spring, and the laminating plate is pulled upwards by the tension of the tension spring in a natural state. In order to ensure the bonding stability of the attached OCA and the thickness uniformity of the OCA glue, a pressing plate component, a pressing roller component and an air pressure component are designed on the other movable side of the attaching plate, wherein the pressing plate component comprises two parts which are arranged up and down, the upper part of the pressing plate component is connected to a rotation correction component, a pressing plate air cylinder on the upper part drives a pressing plate sliding seat to drive a pressing plate wheel which is rotatably connected to the lower part of the pressing plate sliding seat to move downwards, a pressed support on the lower part of the pressing plate sliding seat is connected to the attaching plate, the pressed support on the lower part of the pressing plate sliding seat drives the attaching plate to overcome the pulling force of a stretching spring to rotate downwards after receiving the pressure of the pressing plate wheel, so that one side of the OCA at the bottom of the attaching plate; this kind of limit contact formula laminating mode can reduce the laminating bubble effectively, improves laminating stability. Meanwhile, the compression roller component is connected to the side wall of the compression plate sliding seat of the compression plate component, the compression roller cylinder of the compression roller component drives the compression roller sliding seat to drive the lower compression roller which is rotatably connected to the bottom of the compression roller sliding seat to gradually compress the lower compression roller to the OCA part attached to the OLED panel along the arc-shaped transition surface arranged on the outer side wall of the other side of the attaching plate, and the lower compression roller rolls the attached OCA in a coordinated manner along with the attaching plate to attach the OCA continuously, so that the thickness uniformity of the attached OCA is ensured. In addition, the outer side of the press roll component is also provided with the air pressure component, the air pressure cylinder and the air pressure sliding seat of the air pressure component are both connected to the press roll sliding seat, the air cylinder drives the air pressure sliding seat to independently lift, so that the air pressure seat arranged at the bottom of the air pressure sliding seat is close to the OCA from the outer side of the lower press roll, the OCA rolled by the lower press roll is continuously pressed and held by high-pressure air led out from the bottom of the air pressure seat, the OCA after the lower press roll is prevented from rebounding upwards due to self tension, the pressure holding function is realized, the attaching stability and the attaching thickness uniformity of the OCA are further ensured, and the attaching.

The embodiments of the present invention are merely illustrative of specific embodiments thereof, and are not intended to limit the scope thereof. Since the present invention can be modified by a person skilled in the art, the present invention is not limited to the embodiments described above.

Claims

1. The utility model provides a flexible OLED screen OCA laminating device which characterized in that: the laminating machine comprises a laminating longitudinal module (81), a laminating transverse module (82), a laminating lifting motor (83), a laminating lifting slide seat (84) and a laminating head, wherein the laminating longitudinal module (81) is arranged above a transmission line body of the laminating machine and an OCA film tearing mechanism in a spanning mode; the bonding transverse module (82) is connected to the output end of the bonding longitudinal module (81); the bonding lifting motor (83) is connected to the output end of the bonding transverse module (82), and the output end of the bonding lifting motor is arranged downwards; the joint lifting slide seat (84) is connected with the output end of a joint lifting motor (83) through a screw rod; the bonding head is connected to the bonding lifting sliding seat (84) and moves along with the bonding lifting sliding seat (84); the laminating head comprises a rotary correcting component, a laminating plate (85), a pressing plate component, a pressing roller component and an air pressure component, wherein the rotary correcting component is connected to the lower part of the laminating lifting sliding seat (84), the output end of the rotary correcting component is arranged downwards, the laminating plate (85) is connected to the output end of the rotary correcting component, the position of the laminating plate (85) is adjusted through the rotary correcting component, and the bottom of the laminating plate (85) adsorbs OCA to be laminated through a vacuum suction hole; one side of the jointing plate (85) is rotatably connected with the rotary correcting component; the pressing plate component is arranged on the other side of the attaching plate (85), the upper portion of the pressing plate component is connected with the rotation correcting component, the lower portion of the pressing plate component is connected with the attaching plate (85), and the other side of the attaching plate (85) is driven to rotate downwards, so that when attaching is conducted, one side of the OCA is attached to the flexible OLED firstly, and attaching is completed through continuous rotation; the pressing roll component is connected to the outer side of the pressing plate component, and the output end of the pressing roll component is arranged downwards and is pressed onto the attached OCA downwards; above-mentioned atmospheric pressure part sets up in the outside of compression roller part, and the output sets up down, and after the good OCA of compression roller part roll-in, OCA is pressed close to atmospheric pressure part to pressurize to OCA through decurrent atmospheric pressure.

2. The OCA laminating device for the flexible OLED screen of claim 1, wherein: the pressing plate component comprises a pressing plate cylinder (86), a pressing plate sliding seat (87), a pressing plate wheel (88), a pressing support (89) and an extension spring (819), wherein the pressing plate cylinder (86) is connected to one side of the rotation correcting component, and the output end of the pressing plate cylinder is arranged downwards; the pressing plate sliding seat (87) is connected to the output end of the pressing plate cylinder (86), and the bottom of the pressing plate sliding seat (87) is rotatably connected with a pressing plate wheel (88).

3. The OCA laminating device for the flexible OLED screen of claim 2, wherein: vertical setting of pressurized support (89) on attaching plate (85) opposite side upper portion, pressurized support (89) upper portion is equipped with horizontally pressurized platform, clamp plate cylinder (86) drive pinch roller (88) push down to pressurized support (89) on, make pressurized support (89) push down the opposite side of attaching plate (85), make attaching plate (85) rotatory around one side, the OCA of attaching plate (85) opposite side contacts flexible OLED earlier.

4. The OCA laminating device for the flexible OLED screen of claim 3, wherein: the extension spring (819) is vertically connected to the attaching plate (85) and the rotary correcting component, and the extension spring (819) pulls the other side of the attaching plate (85) upwards in a natural state.

5. The OCA laminating device for the flexible OLED screen of claim 4, wherein: the rotation correction component is a rotation correction motor (816), the output end of the rotation correction motor (816) is connected with a fitting base (817), and the rotation correction motor (816) drives the fitting base (817) to rotate; a rotating seat (818) is arranged at the lower part of one side of the fitting base (817); one side of the attaching plate (85) is rotatably connected with the rotating base (818) through a rotating shaft.

6. The OCA laminating device for the flexible OLED screen of claim 5, wherein: the compression roller component comprises a compression roller cylinder (810), a compression roller sliding seat (811) and a lower compression roller (812), wherein the compression roller cylinder (810) is vertically connected to the outer side wall of the compression support (89), and the output end of the compression roller cylinder is arranged downwards; the compression roller sliding seat (811) is connected to the side wall of the compression support (89) in a sliding manner along the vertical direction and is connected to the output end of the compression roller cylinder (810).

7. The OCA laminating device for the flexible OLED screen of claim 6, wherein: the lower pressing roller (812) is rotatably connected to the lower end of the pressing roller sliding seat (811) and extends downwards to the outer side of the other side of the attaching plate (85); and the pressing roller cylinder (810) drives the lower pressing roller (812) to slide downwards along an arc-shaped transition surface arranged on the outer side wall of the other side of the laminating plate (85) so as to roll the laminated OCA part.

8. The OCA laminating device for the flexible OLED screen of claim 7, wherein: the air pressure component comprises an air pressure cylinder (813), an air pressure sliding seat (814) and an air pressure seat (815), wherein the air pressure cylinder (813) is connected to the side wall of the compression roller sliding seat (811), and the output end of the air pressure cylinder is arranged downwards; the air pressure sliding base (814) is connected on the compression roller sliding base (811) in a sliding way and is connected with the output end of the air pressure cylinder (813).

9. The OCA laminating device for the flexible OLED screen of claim 8, wherein: the air pressure seat (815) is connected to the compression roller sliding seat (811) and extends downwards to the outer side of the lower compression roller (812), an air hole is formed in the bottom of the air pressure seat (815), and the air pressure cylinder (813) drives the air pressure seat (815) to be close to the rolled OCA and continuously acts on the OCA through air pressure to maintain pressure.