KR102424704B1 - vacuum adsorber for flexible display panel - Google Patents

Abstract

The present invention relates to a vacuum adsorber for a flexible display panel, comprising: a pair of side frames spaced apart from each other in parallel; a central frame disposed between the side frames; a vacuum suction pad installed under the side frame and the center frame to adsorb the display panel; One end of the longitudinal direction is hinged to the central frame and the other end includes a plurality of transverse frames connected to the side frame, and when the transverse frame is hinged, the side frame is movable along the longitudinal direction of the transverse frame. do it with
Accordingly, it is possible to further improve the adsorption and fixation force with respect to the central portion of the display panel, and to more efficiently change the curved surface of the display panel, and the side frame is connected in a structure movable along the longitudinal direction of the horizontal frame. Accordingly, there is an effect that can easily increase the curved surface variable rate for a large display panel.

Description

Vacuum adsorber for flexible display panel

The present invention relates to a vacuum adsorber for a flexible display panel, and more particularly, to a flexible display panel that allows the curved surface of the display panel to be varied widely and the transport of the vacuum adsorber can be performed very quickly and conveniently It relates to a vacuum adsorber.

There are various types of display panels that display an image, such as a liquid crystal display (LCD), a plasma display (PDP), an organic light emitting display (OLED), an electrophoretic display (EPD), and the like.

Recently, a flexible display that can be deformed in response to an external physical force has been developed, and a technology applied to an image display device is actively progressing in various industrial fields.

The flexible display refers to a display device that is bent, bent, folded, or rolled like paper while maintaining the display characteristics of the existing flat panel display device.

That is, the flexible display panel can be bent, rolled, or folded into various shapes by providing flexibility by implementing a substrate made of a resin material that can be deformed by external pressure.

On the other hand, companies that assemble products using flexible display panels are using vacuum adsorbers that can easily move flexible displays in a bent state.

As shown in FIG. 1, the vacuum adsorber for a flexible display panel according to the prior art includes the adsorber body 100a, 100b, the vacuum adsorption unit 200, and a plurality of divided guides connecting the adsorber body 100a, 100b. It is composed of a connector unit 340 connecting between the frame 300 and the guide frame 300 .

Looking at the operation of the vacuum adsorber for a flexible display panel according to the prior art, the worker applies pressure to press the adsorber body 100a and 100b from top to bottom to vacuum between the vacuum adsorption unit 200 and the display panel FP. When the guide frame 300 is bent by applying force to the adsorber body 100a and 100b in the direction in which the operator bends the display panel after lifting it up while maintaining the adsorption, the display panel is bent to a certain radius of curvature and is in that state. It is a device that can be moved to the next process.

However, the vacuum adsorber for a flexible display panel according to the prior art rotates in a direction in which the guide frame 300 is bent with respect to the connector unit 340 to bend the display panel FP by direct force. In the case of a large display panel (FP), there was a problem in that the radius of curvature was not constantly variable and the product was defective, such as the center being easily bent at an acute angle.

In addition, the vacuum adsorber for a flexible display panel according to the prior art has a structural problem in that it cannot efficiently change the curved surface of the display panel in response to the various radius of curvature of the installation target.

In addition, in the case of the vacuum adsorber for a flexible display panel according to the prior art, since the guide frame 300 freely flows in the vertical direction on the connector unit 340, in order to vacuum adsorb the display panel P in the unfolded state, First, there is a very inconvenient problem that the operator must always apply force in a direction in which the guide frame 300 is not artificially bent in order to maintain a state parallel to the display panel FP.

Korean Utility Model Publication No. 0278406 (May 31, 2002)

The present invention has been devised to solve the above problems, and in addition to allowing the curved surface of the display panel to be varied widely, the present invention provides a vacuum adsorber for a flexible display panel that can very quickly and conveniently transport the vacuum adsorber. is to provide

In order to achieve the above object, a vacuum adsorber for a flexible display panel according to the present invention includes a pair of side frames spaced apart from each other in parallel; a central frame disposed between the side frames; a vacuum suction pad installed under the side frame and the center frame to adsorb the display panel; One end of the longitudinal direction is hinged to the central frame and the other end includes a plurality of transverse frames connected to the side frame, and when the transverse frame is hinged, the side frame is movable along the longitudinal direction of the transverse frame. do it with

The side frame is characterized in that it is connected to the transverse frame via a sliding bracket having a through coupling portion fitted in a structure through which the other end of the transverse frame passes.

The transverse frame is provided with a stopper flange for regulating the movement range of the side frame, and an elastic spring is interposed between the stopper flange and the through coupling portion.

The side frame is characterized in that it includes a first joint portion rotatably connected to the sliding bracket.

The first joint portion is connected to the sliding bracket and is installed on a joint bracket having both ends bent downward, a support spring interposed between the bent one side of the joint bracket and one side of the side frame, and the other bent side of the joint bracket. It characterized in that it is composed of an angle adjusting unit for setting the vertical angle of the side frame.

A second joint portion for hinge-connecting the horizontal frame to be rotatably rotatable in the vertical direction is installed on the central frame, and a stopper for regulating the rotation range of the horizontal frame with the second joint portion therebetween is installed.

The stopper is installed on the upper portion of the central frame and is in contact with the upper surface of the transverse frame to include a first stopper for regulating rotation.

A pressure spring for elastically pressing the upper surface of the transverse frame is installed between the first stopper and the transverse frame, and a second stopper is provided at the lower portion of the central frame to contact the lower surface of the transverse frame to regulate rotation. characterized.

The central frame may include an elastic means for pressing so that the vacuum suction pad presses the surface of the display panel to form a curved surface.

According to the present invention having the configuration as described above, by arranging the central frame between the side frames, it is possible to further improve the adsorption and fixation force with respect to the central portion of the display panel and to further efficiently change the curved surface of the display panel. There are advantages.

In addition, since the side frame is connected in a movable structure along the longitudinal direction of the horizontal frame, it is possible to easily increase the curved surface variable rate of the large display panel accordingly.

In addition, as the horizontal frame is directly hinged to the center frame, there is an advantage in that the horizontal frame can effectively prevent a defect from being brought into contact with the display panel in the process of changing the display panel to a curved surface.

1 is a front view showing the configuration of a vacuum adsorber for a flexible display panel according to the prior art.
2 is a perspective view showing a vacuum adsorber for a flexible display panel according to an embodiment of the present invention.
3 is a front view of FIG. 2 ;
4 is a cross-sectional perspective view showing the configuration and coupling structure of the elastic means for pressing installed in the central frame of FIG.
5 is a front view showing the operation of FIG.
6 is a partially enlarged view showing the configuration and operation of the through coupling part, the sliding bracket, and the first joint part installed on the side frame of FIG. 3 .
FIG. 7 is a partially enlarged view showing the configuration and operation of the second joint part and the stopper installed in the central frame of FIG. 3 .
8 is a perspective view showing an operating state of a vacuum adsorber for a flexible display panel according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the vacuum adsorber for a flexible display panel according to the present invention will be described in detail based on the accompanying drawings.

For reference, the terms and words used in the present specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, and the inventor must properly understand the concept of the term in order to best describe his invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

In addition, the configurations shown in the embodiments and drawings described in this specification are only the most preferred embodiment of the present invention, and do not represent all of the technical spirit of the present invention, so they may be substituted at the time of the present application as well as thereafter. It should be understood that there may be various equivalents and variations that exist.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying FIGS.

As shown, the vacuum adsorber for a flexible display panel according to the present invention includes a pair of side frames 100a and 100b spaced apart from each other and a center frame 200 disposed between the side frames 100a and 100b. , a vacuum suction pad 300 installed under the side frames 100a and 100b and the central frame 200 and adsorbing the display panel FP, one end in the longitudinal direction is hinged to the central frame 200, The other end includes a plurality of transverse frames 400 connected to the side frames 100a and 100b.

First, the side frames 100a and 100b are members that serve as handles to facilitate the transport and adsorption of the display panel FP to another place by an operator in the production process of the display panel FP, and have a predetermined length. It consists of a pair of components spaced apart in parallel.

A hollow vacuum part is formed inside the side frames 100a and 100b, and a communication coupling part 110 for coupling with a vacuum suction pad 300 to be described later is formed on one side and the other side in the longitudinal direction. .

In addition, the side frames 100a and 100b have a vacuum release button 120 that operates so that the vacuum suction pad 300 maintaining the suction state by the suction action can be easily detached from the display panel FP. this is installed

And an automatic adsorption unit (not shown) using a compressor is connected to any one or each of the side frames 100a and 100b, so that the adsorption coupling hole 101 is formed so that the adsorption action for vacuum can be automatically performed.

In other words, when using the automatic adsorption unit, the operator directly presses the side frames 100a and 100b from top to bottom to raise the side frames 100a and 100b on the display panel FP without the need to generate vacuum pressure. It provides a function that allows automatic adsorption to be achieved just by placing it.

In addition, the configuration and structure for vacuum adsorption and desorption using the side frames 100a and 100b are basic configurations widely used in the adsorber manufacturing field, and thus detailed descriptions thereof will be omitted.

The vacuum suction pad 300 is disposed on both sides in the lower longitudinal direction of the side frames 100a and 100b and the center frame 200 to be described later, and is in direct contact with the display panel FP to achieve vacuum adhesion. It is a component that enables

The vacuum suction pad 300 is made of a material having elasticity so as to be in contact with the surface of the display panel FP smoothly, but it is preferable to be manufactured in the form of a circular dome in which a space is formed so that a vacuum pressure can be generated.

In particular, the center frame 200 provided with the vacuum suction pad 300 is included between the side frames 100a and 100b according to the present invention.

The central frame 200 serves to provide a more stable adsorption fixing force to the central portion of the curved display panel FP. This has a very useful advantage in the display panel FP manufactured in a large size.

In addition, a connecting nozzle 310 and a connecting tube 320 communicating with the side frames 100a and 100b are installed on the vacuum suction pad 300 of the central frame 200 .

This is so that the suction action of the center frame 200 on the vacuum suction pad 300 can be automatically performed together during the vacuum suction operation by the automatic suction unit.

In addition, between the center frame 200 and the vacuum suction pad 300 installed therein, the vacuum suction pad 300 directly presses the surface of the display panel FP to form a curved surface of the display panel FP. For elastic means 250 is installed.

That is, the elastic means 250 for pressing automatically bends the display panel FP to a curved surface without the operator applying force to the side frames 100a and 100b in the direction in which the display panel FP is bent. By allowing the weight to be variable, it not only provides the convenience of work, but also provides the effect of preventing defects caused by bending the center of the curved surface at an acute angle in advance.

Specifically, the elastic means 250 for pressing is installed between the central frame 200 and the vacuum suction pad 300 and moves up and down in the vertical direction. It consists of a separation preventing fastening part 252 installed on the upper end portion, a spring 253 coupled to the outer periphery of the lifting shaft member 251 and providing an elastic force to the lifting shaft member 251 .

As shown in FIG. 5 , the elastic means 250 for pressing exerts a restoring force when the pressure is released in a compressed state in which the spring 253 is pressed, thereby applying an elastic force in the direction of pushing the lifting shaft member 251 . In this case, the display panel FP is pressed while the elevating shaft member 251 protrudes due to elasticity, so that it can be changed to be curved.

In addition, the lifting shaft member 251 is formed with a spring accommodating portion 251a for accommodating the spring 253 in a wrapped state so as not to be exposed to the outside.

In addition, the upper end of the inner wall surface of the central frame 200 is formed with an expansion groove 201 that can secure the maximum range of the distance that the lifting shaft member 251 can move.

In addition, auxiliary handles 260 for facilitating transport are installed on both sides of the central frame 200 instead of the side frames 100a and 100b.

On the other hand, the transverse frame 400 has a plurality of components connecting between the side frames 100a and 100b and the central frame 200, and one end of the longitudinal direction is hinged to the central frame 200 and the other end is the It is connected to the side frames 100a and 100b.

That is, the horizontal frame 400 rotates the hinged side frames 100a and 100b, thereby guiding the display panel FP to be easily bent.

Here, the transverse frame 400 is preferably made of a material (aluminum, etc.) having a light weight and excellent durability.

In particular, when the transverse frame 400 according to the present invention is hinged, the side frames 100a and 100b are connected in a movable structure along the longitudinal direction of the transverse frame 400 .

To this end, the side frames 100a and 100b are provided with a through coupling part 150 fitted in a structure through which the other end of the transverse frame 400 passes, so that the side frames 100a and 100b are connected to the central frame 200 . ) is connected to the transverse frame 400 via a sliding bracket 160 that changes the position to be movable toward the side.

In addition, the transverse frame 400 fitted to the through coupling portion 150 has a stopper flange 410 regulating the movement range of the side frames 100a and 100b and an elastic spring between the through coupling portion 150 . 420 is interposed.

The movement of the side frames 100a and 100b may be made elastically by the configuration of the elastic spring 420 .

In addition, the side frames 100a and 100b include a first joint portion 170 that is pivotally and rotatably connected to the sliding bracket 160 .

Here, the first joint portion 170 provides a rotation operation to additionally rotate the side frames 100a and 100b once more, thereby easily increasing the curved surface variable rate for the large display panel FP. provides advantages.

Specifically, the first joint portion 170 is connected to the sliding bracket 160 and both ends of the joint bracket 171 bent downward, the bent one side of the joint bracket 171 and the side frame 100a, 100b) a support spring 172 interposed between one side, and an angle adjusting unit 173 installed on the other bent side of the joint bracket 171 and setting the vertical angle of the side frames 100a and 100b.

On the other hand, the central frame 200 is provided with a second joint portion 260 to which the horizontal frame 400 is rotatably hinged in the vertical direction is installed, and the horizontal frame 400 with the second joint portion 260 interposed therebetween. ), a stopper 600 for regulating the rotation range is installed.

The second joint part 260 serves to connect both sides of the transverse frame 400 by hinges so that rotation in the vertical direction can be stably performed, and the stopper 600 rotates the transverse frame 400 . It plays a role in allowing the scope to be regulated in various ways.

The stopper 600 includes a first stopper 610 installed on the upper portion of the central frame 200 and in contact with the upper surface of the transverse frame 400 to regulate rotation.

Here, the first stopper 610 includes an upper plate 611 extending to a predetermined length, and fastening means 612 installed on both sides of the upper plate 611 and screwed in the vertical direction. The fastening means 612 may be manufactured in a configuration of a lifting type protrusion that moves linearly in the vertical direction rather than a screw rotation method.

In addition, a pressure spring 613 is installed above the center frame 200 , that is, between the first stopper 610 and the transverse frame 400 , which elastically presses the upper surface of the transverse frame 400 .

The pressure spring 613 elastically supports the upper surface of the transverse frame 400 in the pushing direction and transmits the pressing pressure to the transverse frame 400, thereby preventing the transverse frame 400 from arbitrarily rotating upward. .

That is, the pressure spring 613 has the advantage of increasing the convenience of transporting the vacuum adsorber device by applying a pushing force to prevent the transverse frame 400 from rotating normally.

In addition, the upper plate 611 or the transverse frame 400 of the first stopper 610 is provided with a spring receiving part (not shown) for maintaining a stable fixed state without the pressure spring 613 flowing or departing. do.

In addition, a second stopper 620 installed under the central frame 200 and in contact with the lower surface of the transverse frame 400 to regulate rotation is included.

The second stopper 620 also includes a lower plate 621 extending to a predetermined length, and fastening means 622 installed on both sides of the lower plate 621 and screwed in the vertical direction. The fastening means 622 may be manufactured in a configuration of a lifting-type protrusion that moves linearly in the vertical direction rather than a screw rotation method.

As the horizontal frame 400 according to the present invention is directly hinged to the central frame 200, in the process of changing the display panel FP to a curved surface, the horizontal frame 400 is in contact with the display panel to prevent defects. It has the advantage of effectively preventing it from occurring.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and it is within the technical field to which the present invention pertains that various substitutions, modifications, and changes are possible without departing from the spirit of the present invention. It will be clear to those of ordinary skill in the art.

100a, 100b: side frame
150: through coupling part
160: sliding bracket
170: first joint part
200: center frame
250: elastic means for pressing
260: second joint part
300: vacuum suction pad
400: horizontal frame
600: stopper
610: first stopper
620: second stopper

Claims (9)

A pair of side frames spaced apart from each other in parallel;
a central frame disposed between the side frames;
a vacuum suction pad installed under the side frame and the center frame to adsorb the display panel;
One end in the longitudinal direction is hinged to the central frame and the other end includes a plurality of transverse frames connected to the side frame,
When the transverse frame is hinged, the side frame has a sliding bracket having a through coupling part fitted in a structure through which the other end of the transverse frame passes through the side frame so that the side frame can move along the longitudinal direction of the transverse frame. is connected to, and the horizontal frame is provided with a stopper flange for regulating the movement range of the side frame, and an elastic spring is interposed between the stopper flange and the through coupling part.
delete delete According to claim 1,
The side frame is a vacuum adsorber for a flexible display panel, characterized in that it includes a first joint part rotatably connected to the sliding bracket.
5. The method of claim 4,
The first joint portion,
a joint bracket connected to the sliding bracket and having both ends bent and extended downward;
A support spring interposed between the bent one side of the joint bracket and one side of the side frame,
A vacuum adsorber for a flexible display panel, which is installed on the other bent side of the joint bracket and comprises an angle adjusting unit for setting the vertical angle of the side frame.
According to any one of claims 1, 4, 5,
The central frame is provided with a second joint portion for hinge-connecting the transverse frame rotatably in the vertical direction,
A vacuum adsorber for a flexible display panel, characterized in that a stopper for regulating the rotation range of the transverse frame is installed with the second joint portion interposed therebetween.
7. The method of claim 6,
The stopper is installed on the upper portion of the central frame and is in contact with the upper surface of the transverse frame to control the rotation of the first stopper for flexible display panel vacuum adsorber.
8. The method of claim 7,
A pressure spring for elastically pressing the upper surface of the transverse frame is installed between the first stopper and the transverse frame,
A vacuum adsorber for a flexible display panel, characterized in that a second stopper for regulating rotation by being in contact with a lower surface of the horizontal frame is provided at a lower portion of the central frame.
According to any one of claims 1, 4, 5,
The vacuum suction device for a flexible display panel, characterized in that the central frame includes an elastic means for pressing so that the vacuum suction pad presses the surface of the display panel to form a curved surface.

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