KR102280525B1 - Power supply module for flexible display apparatus - Google Patents

Abstract

The present invention relates to a power connection module of a flexible display device, which is connected to a display panel, comprising an electrode frame having a predetermined length and disposed inside a housing, wherein the electrode frame is one of the housings. A first connection part exposed to the side and a second connection part exposed to the other side of the housing are included, and a plurality of the first connection part and the second connection part are electrically connected in a longitudinal direction to be connectable.

Description

Power supply module for flexible display apparatus

The present invention relates to a power connection module for a flexible display device.

In general, a display device is a device that receives and displays an image signal, and is provided on a TV, monitor, billboard, smart phone, etc., and is an organic light emitting device (OLED: Organic Light Emitting Display), a liquid crystal display device as a means for displaying an image. Various devices such as (LCD: Liquid Crystal Display Device) and PDP (Plasma Display Panel) are being used.

In recent years, as the information society develops, the demand for display devices is also changing in various forms, and is gradually becoming lighter, larger, and slimmer. In addition, there is an increasing demand for flexible display devices in order to meet various uses and environments such as buildings, interiors, and exhibitions.

The flexible display device may be implemented such that a plurality of LEDs are arranged in an array form on one side or both sides of a film-type substrate made of a transparent or opaque material, and an image is produced according to the emission of each LED.

On the other hand, since it is difficult to implement a large-screen display device as a single integrated display device, a display device of a predetermined size is configured as a unit block, and a plurality of unit blocks are connected to implement a large-screen display device. The block unit display device may be configured by coupling a power connection module to one side of the display panel. Since power and data signals must be connected for each unit block in the display device of a large screen, each power connection module is electrically connected to each other and simultaneously receives power from the power supply and supplies it to each display panel.

The power connection module is coupled to one edge of the display panel, and the flexible display panel has a disadvantage in that it is difficult to connect with the power connection module due to its flexible nature. Recently, as the width of the power connection module is gradually narrowed according to the implementation of the narrow bezel, the connection process between the display panel and the power connection module is also becoming increasingly difficult.

In addition, in the large-screen display device, a plurality of power connection modules must be connected to each other, and the process of electrically connecting neighboring power connection modules is not easy, so there is a limitation in great expandability.

Therefore, in a large-screen display device using a flexible display panel, there is an urgent need to improve the electrical connection structure between the display panel and the power connection module and the electrical connection structure between the neighboring power connection modules.

The present invention has been proposed to solve the above problems, and it is an object of the present invention to provide a power connection module that is easily connected to a display panel made of a flexible and transparent material and has convenience in installation and maintenance while maintaining thinness and lightness. do it with

In addition, an object of the present invention is to provide a power connection module having a structure advantageous in expandability because electrical connection can be easily made between neighboring power connection modules in the implementation of a large-screen display device.

The power connection module of this embodiment for achieving the above object, in the power connection module connected to the display panel, includes an electrode frame having a predetermined length and disposed inside the housing, wherein the electrode frame is the housing It includes a first connection part exposed to one side of the housing and a second connection part exposed to the other side of the housing, wherein a plurality of the first connection part and the second connection part are electrically connected in a longitudinal direction to be connectable.

Also, in the power connection module of the present embodiment, the electrode frame may be composed of a single or a dozen frames depending on the amount of power or the number of input power sources (SMPS).

Also, in the power connection module of the present embodiment, the first connection part may be bent to form a step in the longitudinal direction.

Also, in the power connection module of this embodiment, the electrode frame may be connected while overlapping the first connection part of the neighboring power connection module and the second connection part of the neighboring power connection module of the other side.

In addition, in the power connection module of this embodiment, the first connection part and the second connection part may be connected via a slot member.

According to the present invention, since the reinforcing substrate is coupled to the rear surface of the base substrate made of a flexible material and the connection is made by a pair of connectors having a plug and receptacle structure arranged in the vertical direction, the display panel connection process can be easily performed.

In addition, the present invention includes an electrode having a frame structure having a predetermined length, and since a plurality of electrodes are easily connected in the longitudinal direction, it is advantageous to implement a large-screen display device.

In addition, the present invention can be applied in the lateral direction of the connector for the connection of the neighboring power connection module, the process of connecting a plurality of power connection module is easily made.

1 is a perspective view showing a large-screen display device of the present embodiment;
2 is an exploded view showing a display device of a unit block;
3 is an exploded view showing the power connection module of this embodiment;
Figure 4 is a perspective view showing the main part of the electrode frame of Figure 3;
Figure 5 is a perspective view showing the main part of the insulating housing of Figure 3;
6 is a perspective view showing the coupling structure of the power connection module of this embodiment;
7 is a perspective view showing a cross-sectional coupling structure of the power connection module of this embodiment;
8 and 9 are perspective views showing another connection structure of the electrode frame according to the present embodiment.

The present invention and the technical problems achieved by the practice of the present invention will be made clear by the preferred embodiments described below. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It should be understood that the differences between the embodiments described below are not mutually exclusive. That is, without departing from the spirit and scope of the present invention, the specific shapes, structures, and characteristics described may be implemented in other embodiments in relation to one embodiment, and the specific shapes, structures, and characteristics of individual components within each disclosed embodiment may be embodied in other embodiments without departing from the spirit and scope of the present invention. It should be understood that the position or arrangement may be changed, and similar reference numerals in the drawings refer to the same or similar functions in various aspects, and the length, area, thickness, and the like may be exaggerated for convenience. In the description of this embodiment, expressions such as first, second, inner, outer, before, after, etc. indicate a relative order, position, direction, etc., and their technical meaning is not necessarily limited to the dictionary meaning.

1 is a perspective view showing a large-screen display device according to the present embodiment, and FIG. 2 is an exploded view showing a display device of a unit block.

Referring to the drawings, in the large screen display apparatus according to the present embodiment, a plurality of display apparatuses 10 constituting a unit block are connected and combined. Each display device 10 may be connected in a horizontal direction or a vertical direction, and includes a display panel 100 and a power connection module 200 coupled to one side of the display panel 100 .

In the display panel 100 , a plurality of LED elements 120 are arranged on at least one surface of the base film 110 made of a flexible material while forming a predetermined interval horizontally, vertically, diagonally or in an arbitrary direction. Each LED element 120 is connected to an electrode line formed on the surface of the base film 110 , a first connector 130 is coupled to one side of the rear surface of the base film 110 , and the first connector 130 is a power source While being connected to the connection module 200, it transmits power and control signals to each LED element 120 along an electrode line. The first connector 130 may have a plug structure having a plurality of connection pins, and the reinforcing substrate 140 is formed on the base film 110 in order to couple the first connector 130 to the flexible base film 110 . can be further combined.

The power connection module 200 provides power for driving each LED element 120 by connecting the first connector 130 of the display panel 100 while being connected to a power supply (not shown). For this purpose, the power connection module 200 of this embodiment forms a connection port 243 to which the first connector 130 can be connected on the upper surface, and the first connector 130 to the second connector 222 disposed therein. is configured to be connected. One or more of the first connector 130 and the second connector ( 222 of FIG. 3 ) may be provided.

In addition, the power connection module 200 is configured to be connected and electrically connected in plurality, as shown in FIG. 1 , and at this time, the outermost power connection module 200 on one side has a power supply, for example, SMPS (switched power supply). mode power supply) is connected to supply power to a plurality of power connection modules 200 at the same time.

Hereinafter, a detailed configuration of the power connection module will be described in detail.

3 is an exploded view showing the power connection module of this embodiment, FIG. 4 is a perspective view showing an electrode frame which is a main part of FIG. 3, and FIG. 5 is a perspective view showing an insulating housing which is a main part of FIG.

3 to 5 , the power connection module 200 of this embodiment includes a plurality of electrode frames 210 , a control board 220 for controlling driving of the display panel 100 , and an electrode frame 210 . and an insulating housing 230 for fixing the control board 220 by coupling, and a cover member 240 for accommodating and protecting the assembly in which the electrode frame 210, the control board 220, and the insulating housing 230 are combined. includes The power connection module 200 is connected to the display panel 100 while having a predetermined width (x direction), a length (y direction), and a height (z direction) to the sub control unit ( sub control unit).

Specifically, the electrode frame 210 includes a common electrode 210a and a panel electrode 210b. The common electrode 210a may function as a ground terminal, and the panel electrode 210b may be configured as an electrode that functions as a power terminal of the display panel 100 . The electrode frame 210 may be formed of a bar-shaped metal frame forming an integral body or a conductive frame made of a flexible material.

Since the panel electrodes 210b are connected to correspond to each display panel 100, a plurality of panel electrodes 210b may be formed. In this case, one panel electrode 210b may correspond to one display panel 100 , or may correspond to one or more, for example, two or three display panels 100 . This embodiment exemplifies the electrode frame 210 including one common electrode 210a and four panel electrodes 210b1 to 210b4. In addition, the electrode frame 210 may further include electrodes having various functions as needed.

The common electrode 210a and the plurality of panel electrodes 210b are coupled to be separated and located on the plate surfaces opposite to each other with respect to the main plate 231 of the insulating housing 230 . That is, the insulating housing 230 includes a main plate 231 on a plate having one side and the other side, and the plurality of electrode frames 210 have frame coupling surfaces 233 provided on each side of the main plate 231 . ) are separated from each other and combined. In the electrode frame 210 of the present embodiment, the common electrode 210a, the pair of first panel electrodes 210b1 and the third panel electrode 210b3 are coupled to one side of the main plate 231 and the other The pair of second panel electrodes 210b2 and fourth panel electrodes 210b4 are coupled to the other side, which is opposite to the main plate 231 , and are electrically separated from each other.

In addition, the first and third panel electrodes 210b1 and 210b3 and the second and fourth panel electrodes 210b2 and 210b4 coupled to one side of the main plate 231 are disposed to be shifted from each other in a zigzag structure. Accordingly, each electrode frame 210 positioned on the opposite surface of the insulating housing 230 is configured not to overlap with each other, and an insulating space spaced apart from each other by a predetermined distance is secured even between each electrode frame positioned on the same plane.

As described above, the plurality of electrode frames 210 are separated on both sides of the insulating housing 230 to reduce the height of the insulating housing 220 in the vertical direction (z direction), and the electrode frames 210 on both sides are displaced from each other. so that the electrode frame 210 between the neighboring power connection modules 200 can be easily connected.

In addition, the electrode frame 210 forms a first connecting portion 211 having a predetermined length and bent to form a step at one end of the longitudinal direction (y-direction). The first connection part 211 is connected to the second connection part 212 forming the other end of the electrode frame 210 of the neighboring power connection module 200 . A detailed description of the electrical connection of the electrode frame 210 formed between the neighboring power connection modules 200 will be described later.

The control board 220 provides power and control signals for driving the display panel 100 , and a board 221 made of a PCB or FPCB material, and a second connector 222 connected to the first connector 130 . and a control chip 223 that generates and provides a control signal. The second connector 222 may form a receptacle structure corresponding to the first connector 130 . The control board 220 is coupled to and fixed to the board coupling surface 234 of the insulating housing 230 .

The insulating housing 230 electrically separates the plurality of electrode frames 210 and the control substrate 220 while coupling and fixing the electrode frame 210 and the control substrate 220 . The insulating housing 230 for this purpose is composed of a main plate 231 on a plate having a predetermined width and length, and a plurality of ribs 232 protrude along the length direction (y direction) of the main plate 231 and are formed. do. Between a pair of adjacent ribs 232 facing each other, the frame coupling surface 233 to which the electrode frame 210 is coupled, the substrate coupling surface 234 to which the control board 220 is coupled, and their insulation An insulating space 235 is provided for That is, an insulating space 235 spaced apart from each other by a predetermined distance is secured between the adjacent frame coupling surfaces 233 .

Electrical interference that may appear between the electrode frames 210 coupled to the same side of the main plate 231 by the insulating space 235 may be minimized. In addition, the plurality of frame coupling surfaces 233 formed on the other side of the insulating housing 230 are disposed in a zigzag shape that is displaced from each other, so that the plurality of electrode frames 210 coupled to each other do not overlap.

The cover member 240 is assembled to surround the outer surface of the insulating housing 230 , and protects the electrode frame 210 and the control board 220 coupled to the insulating housing 230 . The cover member 240 may be divided into an upper cover 241 and a lower cover 242 , and both sides are opened to expose the first connection part 211 and the second connection part 212 of the electrode frame 210 . . In addition, the upper cover 241 has a connection port 243 to provide a path through which the first connector 130 and the second connector 222 are connected.

The power connection module 200 having the above configuration is formed by coupling the plurality of electrode frames 210 and the control board 220 to the insulating housing 230 and then coupling the cover member 240 while covering them. In addition, the first connector 130 of the display panel 100 is coupled to the second connector 222 of the power connection module 200 exposed through the connector 243 to implement the display device 10 of the unit block and , a plurality of display devices 10 of the unit block may be connected along the longitudinal direction of the power connection module 200 to constitute a display device of a large screen.

Hereinafter, the coupling structure of the neighboring power connection module will be described in detail.

Figure 6 is a perspective view showing the coupling structure of the power connection module of this embodiment, Figure 7 is a view showing the cross-sectional coupling structure of the power connection module of this embodiment.

A pair of neighboring power connection modules 200 are connected by screw fastening after the first connection part 211 of one electrode frame 210 and the second connection part 212 of the other electrode frame 210 are connected. this is fixed Since the first connection part 211 is bent at the end of the electrode frame 210 to form a step, the first connection part 211 is connected to overlap each other without interfering with the second connection part 212 . In a state in which the first connection part 211 and the second connection part 212 overlap, a screw electrically connects them and fixes them. In this case, the step of the first connection part 211 may have a height corresponding to the thickness of the electrode frame 210 . Here, the screw is an example of a conductive connector member that fixes the connection while electrically connecting the electrode frame. The connector member is not limited to a screw, and may be configured in various types such as a slot member and a clip member.

By this connection structure, the common electrode 210a and the first to fourth panel electrodes 210b1 to 210b4 of each neighboring power connection module 200 are electrically connected in the longitudinal direction to correspond to each panel electrode 210b. Power is supplied to the display panel 100 . In addition, an appropriate number of unit block display devices can be connected according to the size of the large screen display device, so that the large screen display device can be easily implemented.

In addition, in the power connection module 200 of this embodiment, screw fastening to the electrode frame 210 in the lateral direction is applied in the process of connecting the display devices 10 of a plurality of unit blocks, so that the The process of connecting the display apparatus 10 to each other can be easily performed without being disturbed by other components.

8 and 9 are perspective views illustrating another connection structure of the electrode frame according to the present embodiment. The electrode frame connection structure according to the present embodiment forms a structure in which adjacent electrode frames are electrically coupled by a connector member having a slot structure.

As shown in FIGS. 8 and 9 , the adjacent electrode frames 210 are arranged in a straight line, and the first connection part 211 of the one electrode frame 210 and the second connection part of the other electrode frame 210 ( 212 is inserted into the insertion hole 253 of the slot connector 250 and is electrically connected.

The slot connector 250 for this purpose is made of a conductive material, and the support frame 251 and the support frame 251 are formed with a pair of support ribs 252 facing each other, and between the pair of support ribs 252 . The end of the electrode frame 210, that is, the first connection portion 211 and the second connection portion 212 are inserted to form an insertion hole 253 is coupled.

The insertion hole 253 is preferably formed so that the inner diameter of the insertion hole 253 is slightly larger than the thickness of the electrode frame 210 so that the coupled electrode frame 210 is not easily separated. In addition, the pair of support ribs 252 may be configured to have elasticity toward the inside so that the inserted electrode frame 210 is not easily separated.

In addition, as shown in FIG. 8 , the slot connector 250 has a pair of support support ribs 252 and an insertion hole 253 formed on one side of the support frame 251 , and adjacent at both ends of the insertion hole 253 . The first connection part 211 and the second connection part 212 of the electrode frame 210 may be inserted and coupled. In addition, as shown in FIG. 9 , the slot connector 250 has a pair of support ribs 252 and an insertion hole 253 formed on both sides of the support frame 251, respectively, and an electrode frame adjacent to each insertion hole 253 ( The first connecting portion 211 and the second connecting portion 212 of the 210 may be inserted and coupled.

The power connection module of this embodiment electrically connects the electrode frame and uses a slot connector as a means for fixing the connection, so that it can be connected without applying a bending process to the end of the electrode frame. As described above, the adjacent electrode frames may be coupled by various types of connector members.

Although exemplary embodiments of the present invention have been illustrated and described as described above, various modifications and other embodiments may be made by those skilled in the art. All such modifications and other embodiments are intended to be contemplated and included in the appended claims without departing from the true spirit and scope of the present invention.

10: display device
100: display panel
110: base substrate 120: LED element
130: first connector 140: reinforcing board
200: power connection module
210: electrode frame
210a: common electrode 210b: panel electrode
211: first connection 212: second connection
220: control board 221: PCB board
222: second connector 223: control chip
230: insulating housing 231: main plate
232: rib 233: frame coupling surface
234: substrate bonding surface 235: insulating space
240: cover member
250: slot connector

Claims (5)

A power connection module connected to a display panel, comprising:
It includes an electrode frame disposed inside the housing while having a predetermined length,
The electrode frame includes a first connection part exposed to one side of the housing and a second connection part exposed to the other side of the housing,
Doedoe configured to be connectable in plurality along the longitudinal direction by the electrical connection of the first connection part and the second connection part,
The first connection part is bent to form a step in the longitudinal direction,
The electrode frame is connected while overlapping the first connection part of the neighboring power connection module and the second connection part of the neighboring power connection module of the other side. According to claim 1, wherein the electrode frame,
A power connection module composed of a single or multiple frames depending on the amount of power or the number of input power sources (SMPS). delete delete According to claim 1, wherein the first connection portion and the second connection portion,
A power connection module connected via a slot member.

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