KR100685422B1 - Display panel and fabricating method of the same - Google Patents

Abstract

A display device and a method of manufacturing the same. Display element units; An FPC connected to the display element unit and attached to a rear surface of the display element unit; And a bracket having a hole in a portion in contact with the FPC.

Organic light emitting display, bracket, FPC, inductor

Description

Display device and manufacturing method thereof {Display panel and fabricating method of the same}

1A and 1B are cross-sectional views of a conventional display device;

2 is a photograph of a conventional display device failure;

3 is a plan view of a display device according to an exemplary embodiment of the present invention;

4A through 4C are cross-sectional views illustrating a method of manufacturing a display device according to an exemplary embodiment of the present invention, and are cross-sectional views taken along line II ′ of FIG. 3.

Explanation of reference numerals for the main parts of the drawing

100, 200: substrate, 110, 210: display element,

120, 220: sealing material, 130, 230: sealing board,

140, 240: pad portion, 150, 250: FPC,

160: DC-DC converter, 260: electronic components,
170, 270: Bracket, 50, 70: Double-sided adhesive material

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BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device and a method of manufacturing the same, and more particularly, to a display device mounted on a bracket having a hole and a method of manufacturing the same.

The display device is an interface between an electronic device and a person, and is a device that displays electrical signals output from various electronic devices as patterned information that can be recognized through human vision. A typical display device is a cathode ray tube (CRT), but recently, such as a plasma display panel (PDP), a liquid crystal display (LCD), an organic light emitting display (OLED), such as lightweight, thin, low power consumption, high resolution Flat panel display devices have attracted attention.

A liquid crystal display (LCD) or an organic light emitting display (OLED) is typically used as a display device for small electronic devices, and a module is composed of a display element unit, an external circuit, and a bracket.

1A and 1B are cross-sectional views of a conventional display device.

 Referring to the drawings, the display device includes a display element unit formed of a display element 110 formed on the substrate 100, an encapsulant 120 encapsulating the encapsulant 120, and an encapsulation substrate 130, and the display element 110. And a pad 140 for connecting an external circuit, a flexible printed circuit (FPC) 150 that is a flexible circuit board, electronic components formed on the FPC, and a bracket 170 on which the components are mounted. .

In the case of the organic light emitting display device, an input voltage is converted into an output voltage for driving through the DC-DC converter 160 to drive the display device. Among the electronic components, the DC_DC converter 160 including an inductor is configured. When the display device is mounted in a small electronic device, the size of the DC_DC converter 160 and the electronic components should be reduced. Therefore, when the electronic components of small size are used, heat is generated in the electronic components.

The heat damages the light emitting layer of the organic light emitting display device, and FIG. 2 is a photograph of a conventional display device failure.

Referring to the drawings, a darker portion of the light emitting surface A than the surroundings is generated, which causes heat generated in the electronic component to not be emitted to the outside and affects the organic layer of the display device to damage the light emitting layer. The defect occurred by coating.

In order to solve this problem, as shown in FIG. 1B, the electronic components may be positioned outside the bracket 170. However, such a method is located outside the bracket, which risks the electronic components from being damaged by external shocks.

SUMMARY OF THE INVENTION The present invention provides a display device having a structure capable of protecting electronic parts while protecting a light emitting layer of a display device by placing some of the electronic parts of the display device outside the bracket, and providing a method of manufacturing the same. The purpose is to.

The present invention provides a display device unit; An FPC connected to the display element unit and attached to a rear surface of the display element unit; And a bracket having a hole in a portion in contact with the FPC.

The hole may expose one or more electronic components formed on the FPC.

The bracket may have a thickness less than or equal to the thickness of the electronic components.

The display device unit may include an organic light emitting display device.

In addition, to achieve the above technical problem, the present invention comprises the steps of forming a display element by forming and encapsulating a display element on the substrate; Connecting the FPC to the display element unit and attaching the FPC to a rear surface of the display element unit; And attaching the display element unit to a bracket having a hole at a portion contacting the FPC.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided as examples to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the invention is not limited to the embodiments described below and may be embodied in other forms. In the drawings, lengths, thicknesses, and the like of layers and regions may be exaggerated for convenience. Like numbers refer to like elements throughout.

3 is a plan view of a display device according to an exemplary embodiment of the present invention, and FIG. 4C is a cross-sectional view taken along line II ′ of FIG. 3.

Referring to FIGS. 3 and 4C, the display element 210 formed on the substrate 200, the encapsulant 220 encapsulating the display element 210, and the encapsulation substrate 230 are positioned. The display device 210 may be an organic light emitting display device, or further, a liquid crystal display device.

The FPC 250 connected to the display element unit is attached to the rear surface of the display element unit. One or more electronic components may be located on the FPC 250.

In addition, a bracket 270 having a hole is positioned at a portion in contact with the FPC 250. The hole exposes at least some of the one or more electronic components formed on the FPC 250. The exposed electronic components 260 may have a high heat generation rate when the display device is driven. Furthermore, one of the exposed electronic components 260 may be a DC-DC converter.

Since heat generated in the electronic components 260 may be emitted to the outside of the display device without disturbing the bracket 270, the light emitting layer of the display device 210 may be protected from heat. In addition, unlike the electronic parts that are damaged when protruded to the outside as shown in Figure 1b, in the present invention, because of the bracket 270 is connected to the FPC 250 of the electronic parts 260 is wrapped, Damage to the electronic components 260 may be prevented during the process. Accordingly, by providing a bracket 270 having a hole formed at a portion where the electronic components 260 are positioned, the display device according to the present invention can radiate heat to the outside to protect the light emitting layer and also prevent damage to the electronic components. have.

The bracket 270 may have a thickness less than or equal to the thickness of the electronic components 260. Therefore, since the thickness of the portion where the electronic components are located is reduced, the thickness of the display device due to the bracket can be reduced. That is, since the total thickness t2 may be reduced by the thickness of the bracket 270 than the total thickness of the conventional display apparatus (t1 of FIGS. 1A and 1B), the display apparatus may be thinner.

The bracket 270 may surround more than the back side and one side of the display element unit. Therefore, the display element portion can be further protected.

The pad part 240 is positioned between the display element part and the FPC 250. The pad part 240 connects the display element part and an external circuit module. That is, the display element unit and the FPC are connected through the pad unit 240.

4A through 4C are cross-sectional views illustrating a method of manufacturing a display device according to an exemplary embodiment of the present invention, and are cross-sectional views taken along line II ′ of FIG. 3. A method of manufacturing a display device according to an exemplary embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 4A, a display element portion is formed by forming and encapsulating a display element on a substrate.

The display device 210 may be an organic light emitting display device, and furthermore, the display device 210 may be a liquid crystal display device.

For example, in the case of the organic light emitting display device, predetermined wirings and thin film transistors are formed on the substrate 200, and pixel electrodes are formed to be connected to the thin film transistors. An organic light emitting display device may be formed by forming an organic layer including a light emitting layer on the pixel electrode, forming an opposite electrode, and sealing the same using an encapsulant 220 and an encapsulation substrate 230.

The display element unit and the FPC 250 are connected to each other. The FPC 250 may be formed with predetermined electronic components. Furthermore, the electronic components may include those forming a DC-DC converter.

The pad part 240 is formed between the display element part and the FPC 250. Therefore, the display element unit and the FPC 250 are connected through the pad unit 240.

Referring to FIG. 4B, the FPC 250 is attached to the rear surface of the display element unit.

Attaching the FPC 250 may be to attach using the double-sided adhesive material 70. In addition, the display element to which the FPC 250 is attached is mounted on the bracket. Thus, a double-sided adhesive material 70 is attached to a portion of the FPC 250 to mount to the bracket.

Referring to FIG. 4C, the display element is mounted on a bracket 270 having a hole in a portion in contact with the FPC 250. The hole may expose at least some of one or more electronic components positioned on the FPC 250. The exposed electronic components 260 may have a high heat generation rate when the display device is driven. Furthermore, one of the exposed electronic components 260 may be a DC-DC converter.

Therefore, since heat generated in the electronic components 260 may be emitted to the outside of the display device during the driving of the display device, heat applied to the light emitting layer of the display device may be reduced. In addition, since the bracket 270 protects the connection portions of the electronic components 260 with the FPC 250, an external force that may be applied to the electronic components 260 during the process may be reduced.

The bracket 270 may be formed to have a thickness less than or equal to the thickness of the electronic components 260. Therefore, since the thickness of the portion where the electronic components are located is reduced, the thickness of the display device due to the bracket can be reduced.

The mounting of the display element may be such that the bracket surrounds the rear side and one or more sides of the display element. Therefore, the display element portion can be further protected.

The display device and a method of manufacturing the same according to the present invention include a bracket having holes formed at a position where an electronic component is located, thereby dissipating heat to the outside, thereby protecting the light emitting layer and reducing damage to the electronic component.

In addition, since the total thickness can be reduced by the thickness of the bracket than the total thickness of the conventional display device, the display device can be made thinner.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

Claims (15)

Display element units; An FPC connected to the display element unit and attached to a rear surface of the display element unit; And And a bracket having a hole in a portion in contact with the FPC. The method of claim 1, And the hole exposes one or more electronic components formed on the FPC.  The method of claim 2, One of the electronic components is a DC-DC converter. The method of claim 2, And the bracket has a thickness less than or equal to the thickness of the electronic component. The method of claim 1, The bracket is a display device surrounding the back and one side of the display element portion. The method of claim 1, And the display device unit includes an organic light emitting display device. The method of claim 1, And the display element unit includes a liquid crystal display element. Forming a display element portion by forming and encapsulating a display element on a substrate; Attaching the FPC to a rear surface of the display element unit after connecting the display element unit and the FPC; And And mounting the display element portion on a bracket having a hole in a portion in contact with the FPC. The method of claim 8, And the hole exposes one or more electronic components located on the FPC. The method of claim 9, One of the electronic components is to form a DC-DC converter. The method of claim 9, And the bracket has a thickness less than or equal to the thickness of the electronic components. The method of claim 8, The mounting of the display device unit is a method of manufacturing a display device such that the bracket wraps over the back and one side of the display device. The method of claim 8, And attaching the FPC using a double-sided adhesive material. The method of claim 8, And the display device unit includes an organic light emitting display device. The method of claim 8, And the display element portion includes a liquid crystal display element.

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