KR100700819B1 - Connection method of light emitting display device and light emitting display device - Google Patents

Abstract

The present invention relates to a light emitting display device and a method of connecting the light emitting display device for easily connecting the opaque substrate and the interface panel.

The light emitting display device includes: a substrate on which a pad portion having an image display portion and a plurality of terminals is formed; An opaque interface panel having a connection portion electrically connected to the pad portion; And at least one of the pad portion and the connecting portion, an alignment display portion for aligning the pad portion and the connecting portion at a position corresponding to the pad portion and the connecting portion. Accordingly, the pad portion formed on the opaque substrate and the interface panel can be easily connected.

Description

Light emitting device and interface bonding method

1 is a plan view illustrating an interface panel and a substrate of a light emitting display device according to an exemplary embodiment of the present invention.

2A is an enlarged plan view illustrating a connection area between an interface panel and a pad unit according to another exemplary embodiment of the present invention.

FIG. 2B is a coupling diagram of the pad unit and the interface panel in FIG. 2A.

3A is an enlarged plan view of a connection area between a pad part and an interface panel according to another exemplary embodiment of the present invention.

FIG. 3B is a coupling diagram of the pad unit and the interface panel in FIG. 3A.

4A and 4B illustrate embodiments of an alignment display unit formed in an interface panel according to the present invention.

5 is a perspective view schematically illustrating a method of connecting a light emitting display device according to the present invention.

♣ Detailed description of the main parts of the drawing ♣

100, 200, 300, 500: light emitting display device 110, 210, 310, 510: substrate

120,220,320,520: Image display part 130,230,330,530: Pad part

131,231,331: Terminal 150,250,350,450,550: Interface panel

151,251,351,451,551: Connection terminals 153,253,340,453,455,553: Alignment display

341 indicator 343 indicator

560: photographing means 570: lighting means

The present invention relates to a light emitting display device and a method of connecting the light emitting display device, and more particularly, to a light emitting display device and a method of connecting the light emitting display device for easily coupling the substrate constituting the light emitting display device and the interface panel. will be.

In recent years, the technique which comprises a thin film transistor using the semiconductor thin film formed on the board | substrate which has an insulating surface attracts attention. Thin film transistors are widely applied to electronic devices such as ICs and electro-optical devices, and in particular, development of switching devices of light emitting display devices is being progressed. In order to form the above-described thin film transistors, glass or quartz is used, but these are disadvantageous in that they are easily broken and relatively heavy, making it difficult to make them large and inadequate, and mass production is not easy.

In order to solve this disadvantage, a light emitting display device including a thin film transistor and a light emitting device may be manufactured on a relatively thin substrate, for example, a metal thin film or plastic film type substrate. In addition, the thin film or film-type substrate has flexibility in addition to being thin and lightweight, and thus can be used for displays, show windows, and the like. However, since the plastic film type substrate is weak in heat resistance and fairly sensitive to temperature change, it is required to form a conventional thin film transistor when forming a light emitting display device including a thin film transistor and a light emitting element on the plastic film type substrate. Since it is necessary to process relatively low compared to temperature, compared with the case where a thin film transistor is formed on a glass substrate, it is not easy to aim at the performance improvement of a thin film transistor.

In order to solve this problem, it is proposed to form a light emitting display device on a substrate having a metal thin film form. In the case of forming a light emitting display device on a metal thin film type substrate, since a high temperature process is possible, a polysilicon thin film transistor having excellent channel mobility can be fabricated, so that a system on panel that integrates a driving circuit into a pixel can be implemented. It is possible.

However, it is not easy to connect the opaque metal thin film substrate and the interface panel, and furthermore, it is not easier to connect the opaque metal substrate and the opaque interface panel. Therefore, in order to connect the opaque metal substrate and the interface panel, lighting means for irradiating a light source toward the metal substrate side and photographing means for photographing the metal substrate should be provided on the metal substrate. Since the lighting means and the photographing means are formed, the pad portion of the light emitting display device photographed through the photographing means must be combined with the terminals formed on the interface panel. Therefore, it takes much time to connect the substrate and the interface panel. Since the number of processes increases, there is a problem that productivity is lowered.

Accordingly, the present invention is an invention devised to solve the above-described problems, and an object thereof is to easily connect an LED panel and an interface panel formed on a metal thin film substrate.

According to an aspect of the present invention, a light emitting display device includes a substrate having a pad portion having an image display portion and a plurality of terminals; An opaque interface panel having a connection portion electrically connected to the pad portion; And at least one of the pad part and the connection part, an alignment indicator which is an alignment criterion for aligning the pad part and the connection part at a position corresponding to the pad part and the connection part.

Preferably, the alignment display portion is at least one display hole formed in the connection portion region of the interface panel to expose the terminal formed on the pad portion.

The alignment display part is formed in the connection part area of the interface panel to expose at least one display hole exposing one area of the pad part formed on the pad part, and at least partially through the display hole at a position corresponding to the display hole. At least one indicator is formed in the pad portion to be exposed.

The display hole is made of any one of a circle, an oval, and a polygon. The substrate is an opaque metal thin film, and the interface panel uses either a controller built-in type having a controller for applying a control signal to the image display part formed on the substrate or a controller external type in which the controller is externally connected. The interface panel uses any one of an integrated circuit (IC) and a front panel controller board (FPCB) for applying a control signal to the image display unit formed on the substrate. The IC is a chip on film (COF) type.

According to another aspect of the present invention, a method of connecting a light emitting display device includes: preparing a substrate on which a pad portion having an image display portion and a plurality of terminals is formed, and an interface having a connection portion electrically connected to the pad portion formed on the substrate. Preparing a panel; forming an alignment display unit on an at least one side of the pad unit and the connection unit as an alignment reference for aligning the pad unit and the connection unit; and forming the pad unit using the alignment display unit And aligning the connection terminal formed in the connection portion at a position corresponding to the terminal.

Preferably, the method further includes irradiating light toward the alignment indicator side on the connection part and the pad part while aligning the connection terminal.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic plan view illustrating a connection between a substrate and an interface panel connected on the substrate according to an embodiment of the present invention. Referring to FIG. 1, the light emitting display device 100 includes a substrate 110 having an image display unit 120, a pad unit 130, and an interface panel 150.

The substrate 110 is formed of an opaque plastic or metal. When the substrate is formed using a metal, the substrate 110 includes stainless steel (sus) or titanium (Ti). A plurality of terminals 131 are formed in the pad part 130 formed on the substrate 110 and connected to the interface panel 150.

The interface panel 150 may be classified into an internal type in which a controller for applying a control signal to the image display unit 120 is formed and an external type in which the controller is externally connected, and any one of them may be used in the present invention. In detail, the interface panel 150 may use any one of an integrated circuit (IC) and a front panel controller board (FPCB).

The interface panel 150 in this embodiment is an external type in which the controller is connected from the outside, and uses an opaque plastic material as the flexible circuit board. In addition, the interface panel 150 has a plurality of connection terminals 151 formed at positions corresponding to the terminals 131 of the pad unit 130 and electrically connected to the terminals 131. By connecting the pad unit terminal 131 and the connection terminal 151 to each other, a control signal or power applied from the outside is applied to the image display unit 120.

On the other hand, in order to facilitate the alignment of the terminal 131 of the pad unit 130 and the connection terminal 151 of the interface panel 150, the connection of the terminal 131 of the pad unit 130 and the interface panel 150. An alignment indicator 153, which is an alignment criterion, is formed between the terminals 151. The alignment display unit 153 is formed at both ends of the connection terminal 151 of the interface panel 150, specifically, at both ends of the horizontal direction in the direction in which the connection terminal 151 and the pad unit 130 are connected to each other. The alignment display unit 153 may have a through hole formed through the interface panel 150 and may be formed in various forms (for example, circular, elliptical, various polygons, etc.). As described above, by forming the alignment display unit 153 on the interface panel 150, the pad unit 130 and the interface panel 150 are easily connected.

FIG. 2A is an enlarged plan view of a connection area between an interface panel and a pad unit according to another exemplary embodiment of the present invention, and FIG. 2B is a coupling diagram of the pad unit and the interface panel in FIG. 2A.

Referring to FIG. 2A, the light emitting display device 200 includes a substrate 210 on which an image display unit 220 and a pad unit 230 are formed, and an interface panel 250 electrically connected to the pad unit 230. do. The substrate 210 and the interface panel 250 are formed of an opaque material. The substrate 210 is formed of a metal thin film or an opaque plastic, and when the substrate 210 is formed of a metal thin film, at least one of stainless steel (sus) and titanium (Ti) is used. A plurality of terminals 231 are formed in the pad portion 230 formed on the substrate 210.

The interface panel 250 in this embodiment is a COF (chip on film) type which is an integrated circuit integrated circuit (IC) in which a controller 255 for applying a control signal to the image display unit 220 is formed. The interface panel 250 is provided with a plurality of connection terminals 251, which are connection parts electrically connected to the pad part 230. The connection terminal 251 is formed at a position corresponding to the plurality of terminals 231 formed in the pad unit 230 and connected to each other, so that a control signal from the controller 255 is applied to the image display unit 220.

On the other hand, between the terminal 231 of the pad unit 230 and the connection terminal 251 of the interface panel 250, an alignment display unit 253, which is an alignment criterion for facilitating their alignment, is formed. The alignment display unit 253 is formed in the connection terminal 251 region of the interface panel 250 and has a through hole that penetrates both ends in the horizontal direction in a coupling direction where the connection terminal 251 and the pad unit 230 are coupled to each other. The through hole is formed in various ways such as a circle, a square. As described above, since the alignment display unit 253 formed in the interface panel 250 serves as a reference for connecting the interface panel 250 and the pad unit 230, connection thereof may be easily performed (see FIG. 2B). .

3A is an enlarged plan view of a connection area between a pad unit and an interface panel according to another exemplary embodiment of the present invention, and FIG. 3B is a coupling diagram of the pad unit and an interface panel in FIG. 3A. In order to avoid duplication of description and convenience of description, detailed descriptions of the same elements as in the embodiments of FIGS. 2A and 2B will be omitted.

Referring to FIG. 3A, the light emitting display device 300 includes a substrate 310 including an image display unit 320 and a pad unit 330 on which a plurality of terminals 331 are formed, and the pad unit 330 electrically. The interface panel 350 includes a plurality of connection terminals 351, which are connected portions. The interface panel 350 is a COF type with a built-in controller.

On the other hand, between the terminal 331 of the pad unit 330 and the connection terminal 351 of the interface panel 350, an alignment display unit 340, which is an alignment standard for facilitating their alignment, is formed. The alignment display unit 340 includes an indicator 341 formed on the pad unit 330 and a display hole 343 penetrating through the interface panel 350.

The display hole 343 is formed at both ends in the horizontal direction in the coupling direction in which the connection terminal 351 and the terminal 331 are coupled, and may also have various shapes. The indicator 341 formed in the pad part 330 is formed at a position corresponding to the display hole 343 so as to be exposed to the display hole 343, and has various shapes (for example, "╋" and "━"). Etc.). As described above, since the display hole 343 and the indicator 341 which are the alignment display unit 340 serve as a reference for connecting the interface panel 350 and the pad unit 330, their connection can be easily performed (FIG. 3b).

4A and 4B illustrate other embodiments of the alignment indicator according to the present invention. 4A and 4B, a plurality of connection terminals 451 and alignment indicators 453 and 455 are formed in the interface panel 450. In this case, the alignment display portions 453 and 455 may be formed in various shapes such as a rectangle and a rhombus, and the shape of the alignment display portions 453 and 455 is not limited to the above-described embodiments.

5 is a perspective view schematically illustrating a method of connecting a light emitting display device according to the present invention. Referring to FIG. 5, the photographing means 560 and the lighting means 570 are further provided to couple the substrate 510 constituting the light emitting display device 500 to the interface panel 550. When the photographing means 560 and the lighting means 570 are provided on the substrate 510 and the interface panel 550, the substrate 510 and the interface panel 550 may be connected through the following steps.

First, in order to connect the pad portion 530 formed on the substrate 510 and the connection terminal 551 of the interface panel 550, the lighting means 570 provided on the substrate 510 and the interface panel 550 is connected. On, the light is irradiated to the connection terminal 551 side of the interface panel 550. When light is irradiated to the connection terminal 551, the image of the pad unit 530 is photographed and stored by the photographing means 560. In the next step, the connection terminal 551 of the interface panel 550 is aligned using the image of the pad unit 530 stored in the photographing means 560. As such, when the connection terminal 551 of the interface panel 550 is correctly aligned at a position corresponding to the pad portion 530, the pad portion 530 is exposed through the display hole 553 formed in the interface panel 550. do. As a result, the interface panel 550 and the pad unit 530 are easily coupled.

In the above-described embodiment, the controller is not connected to the flexible circuit board, but the controller may be additionally formed outside the interface panel.

Although the present invention has been described with reference to the embodiments illustrated in the accompanying drawings, it is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. There will be.

As described above, since the alignment of the substrate and the interface panel is easy by using the alignment display unit as the alignment standard according to the present invention, the substrate and the interface panel can be easily connected. In addition, by forming the alignment display unit, the time and the number of steps required to connect the substrate and the interface panel can be reduced, thereby improving productivity.

Claims (12)

A substrate on which a pad portion having an image display portion and a plurality of terminals is formed; An opaque interface panel having a connection portion electrically connected to the pad portion; And An alignment display unit formed in a connection area of the interface panel and including at least one display hole for exposing the terminal formed on the pad unit; Light emitting display device comprising a. delete The method of claim 1, wherein the alignment display unit And at least one indicator formed on the pad portion to be at least partially exposed through the display hole at a position corresponding to the display hole. The method of claim 3, The display hole is a light emitting display device consisting of any one of circular, oval, polygon. The method of claim 1, And the substrate is an opaque metal thin film. The method of claim 1, The interface panel uses one of a controller built-in type having a controller for applying a control signal to the image display part formed on the substrate or an external controller type to which the controller is externally connected. The method of claim 6, The interface panel uses any one of an integrated circuit (IC) and a front panel controller board (FPCB) for applying a control signal to the image display unit formed on the substrate. The method of claim 7, wherein The IC is a chip on film (COF) type light emitting display device. Preparing a substrate on which a pad portion having an image display portion and a plurality of terminals is formed; Preparing an interface panel having a connection portion electrically connected to a pad portion formed on the substrate; Forming an alignment indicator on at least one side of the pad part and the connection part as an alignment criterion for aligning the pad part and the connection part; Aligning the connection terminal formed on the connection portion at a position corresponding to the terminal formed on the pad portion using the alignment indicator; Connection method of a light emitting display device comprising a. The method of claim 9, wherein while aligning the connection terminal, And irradiating light toward the alignment display portion on the connection portion and the pad portion. The method of claim 10, And the alignment display unit is at least one display hole formed in at least one end of both ends of the connection part in the longitudinal direction to expose at least a portion of the terminal formed on the pad unit. The method of claim 10, wherein the alignment display unit At least one display hole formed in a connection portion region of the interface panel to expose one region of the pad portions formed on the pad portion, and the pad portion exposed at least partially through the display hole at a position corresponding to the display hole. A method of connecting a light emitting display device having at least one indicator formed on the display.

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