KR100942552B1 - Flat Panel Display - Google Patents

Abstract

The present invention relates to a flat panel display device, comprising a flat panel display panel including a pad part and a plurality of pixels, a substrate part supporting the flat panel display panel, and a bent part bent in the same direction in the substrate part. The bent portion of the bezel housing the display panel provides a flat panel display device having one or a plurality of buffer intervals divided into long sides or long sides and short sides.

Accordingly, the flat panel display device of the present invention can improve durability against external impact and distortion.

Bezel, Damping Interval

Description

Flat Panel Display {Flat Panel Display}

The present invention relates to a flat panel display, and more particularly, to a flat panel display including a bezel having a bent portion.

In general, a flat panel display such as a liquid crystal display (LCD), a field emission display (FED), and an organic light emitting diode display (OLED) is used. FPD) is accommodated in a bezel in the form of a frame in order to physically and electrically protect the flat panel that performs the display operation.

However, the conventional bezel has a bent edge portion bent in the vertical direction has a problem that the bent portion is easily bent by the external impact and distortion. In particular, stress is concentrated in the long side direction of which the bezel is relatively long, causing bending of the bent portion.

Accordingly, the present invention is to solve the above problems of the prior art, to provide a flat panel display having one or a plurality of buffer intervals by dividing the bent portion on the long side or long side and short side of the bezel.

Accordingly, the flat panel display device of the present invention can improve durability against external impact and distortion.

The object of the present invention is a flat panel display panel including a pad portion and a plurality of pixels; And a bezel for accommodating the substrate portion supporting the flat panel display panel and the edges of the substrate portion in the same direction, and including a bezel for accommodating the flat panel display panel, wherein the bent portion is divided at a long side and has one or more buffers. It is achieved by a flat panel display device having a spacing.

In addition, the object of the present invention is a flat panel display panel including a pad unit and a plurality of pixels; And a bezel for accommodating the substrate portion supporting the flat panel display panel and the edges of the substrate portion in the same direction, and including a bezel for accommodating the flat panel display panel, wherein the bent portion is divided into long sides and short sides. The present invention is also achieved by a flat panel display device having two buffer intervals.

Details of the above objects and technical configurations and the effects thereof according to the present invention will be more clearly understood by the following detailed description with reference to the drawings showing preferred embodiments of the present invention.

In the drawings, the lengths, thicknesses, etc. of layers and regions may be exaggerated for convenience. Also, like reference numerals denote like elements throughout the specification.

<Example 1>

1 is a plan view of an organic light emitting display device according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view of the region II ′ of FIG. 1 of the present invention.

1 and 2, the organic light emitting display device includes a bezel 10, an organic light emitting panel 20, and a flexible printed circuit board (FPCB, not shown).

First, the bezel 10 includes a substrate portion 11 supporting the organic light emitting panel 20 and a bent portion 12 formed by bending the edges of the substrate portion 11 in the same direction. . Therefore, the substrate portion 11 and the bent portion 12 may be formed of the same material.

The substrate unit 11 supports the organic light emitting panel 20 and functions as a frame for fixing the organic light emitting panel 20. At this time, it is generally formed of a conductive metal material because it can be connected to the ground terminal of the organic light emitting panel 20 and the flexible printed circuit board to improve the electrical reliability.

The bent portion 12 is formed by bending the edges of the substrate portion 11 in the same direction. In Embodiment 1 of the present invention, the bent portion 12 is bent in the vertical direction to form the bent portion 12.

Therefore, the organic light emitting panel 20 may be accommodated, thereby reducing breakage of the organic light emitting panel 20 due to external impact from the side surface.

In this case, the bent part 12 forms one or a plurality of buffer intervals 12a on both sides of the long side direction of the substrate part 11 as shown in FIG. 1 in order to have durability against external impact and distortion. Accordingly, the bent portion 12 positioned on the long side of the substrate portion 11 may be divided into one or a plurality of divided shapes.

The buffer interval (12a) may be formed in 0.05mm to 0.1mm, when smaller than 0.05mm it is difficult to work during the manufacturing process and the buffering effect may be lowered. On the other hand, when formed to 0.1mm or more may reduce the mechanical stiffness.

Next, the organic light emitting panel 20 includes a device substrate 21 on which a pixel region 25 including a plurality of pixels is formed, an encapsulation substrate 30 bonded to the device substrate 21, and the pixel. And a pad part 31 for supplying an electrical signal for driving.

First, the device substrate 21 may be formed of an insulator such as a glass substrate or a plastic substrate.

On the device substrate 21, a first electrode 22 including a reflective film (not shown) and an organic light emitting layer 23 formed on the first electrode 22 and the organic light emitting layer 23 are formed on the device substrate 21. A pixel is formed of an organic EL device including the second electrode 24.

In FIG. 2, one organic electroluminescent device is illustrated for convenience of description, but in reality, a plurality of pixels are formed to form the pixel region 25.

In this case, a hole injection layer and a hole transport layer may be formed between the organic light emitting layer 23 and the first electrode 22, and an electron transport layer and an electron injection layer between the organic light emitting layer 23 and the second electrode 24. This may be formed.

The encapsulation substrate 30 may be formed of the same material as the element substrate 21, and the edge portion of the element substrate 21 may be bonded to the encapsulation substrate 30 by the sealant 27 and accommodated in the internal space. The included pixel region 25 is protected from outside air.

The sealant 27 may be a UV curing agent or thermosetting agent such as epoxy.

In addition, the organic light emitting diode includes a semiconductor layer, a gate electrode corresponding to the semiconductor layer, and a source / drain electrode electrically connected to the semiconductor layer between the device substrate 21 and the first electrode 20. It may be an active organic electroluminescent device further comprising a thin film transistor.

The organic electroluminescent panel 20 is attached to and fixed to the substrate portion 11 of the bezel 10 by a cushion tape (not shown) having adhesive tapes on one surface and the other surface. In this case, the cushion tape may use a PORON material.

Next, the flexible printed circuit board (not shown) is connected to the pad part 31 of the organic light emitting panel 20, wherein the pad part 31 is provided with a plurality of pixels provided in the organic light emitting panel 20. A function of supplying an electrical signal to a data driver (not shown) and a scan driver (not shown) for driving the.

The flexible printed circuit board has an external circuit and an organic light emitting display through the two divided bent portions 12 formed at one side of the bent portions 12 formed at the edge of the substrate portion 11 of the bezel 10. The panel 20 is connected, but can be generally formed on one side of the short side.

<Example 2>

3 is a plan view of an organic light emitting display device according to a second embodiment of the present invention, and FIG. 4 is a schematic view of a bezel according to a second embodiment of the present invention.

3 and 4, the organic EL display device of the first embodiment of the present invention has the same configuration except for the bezel 10, and thus description thereof will be omitted.

The bezel 10 includes a substrate portion 11 supporting the organic light emitting panel 20 and a bent portion 12 formed by bending an edge of the substrate portion 11 in the same direction.

Therefore, the substrate portion 11 and the bent portion 12 may be formed of the same material.

The substrate unit 11 supports the organic light emitting panel 20 and functions as a frame for fixing the organic light emitting panel 20. At this time, it is generally formed of a conductive metal material because it is connected to the ground terminal of the organic light emitting panel 20 and the flexible printed circuit board to improve the electrical reliability.

The bent portion 12 is formed by bending the edge of the substrate portion 11 in the same direction. In Embodiment 2 of the present invention, the bent portion 12 is bent in the vertical direction to form the bent portion 12.

Therefore, the organic light emitting panel 20 may be accommodated, thereby reducing breakage of the organic light emitting panel 20 due to external impact from the side surface.

At this time, the bent portion 12 forms one or a plurality of buffer intervals 12a on the long side and the short side of the substrate portion 11 in order to have durability against external impact and distortion.

Accordingly, the bent portion 12 positioned at the long side and the short side of the substrate portion 11 may be divided into one or a plurality of divided forms.

The buffer interval (12a) may be formed in 0.05mm to 0.1mm, when smaller than 0.05mm it is difficult to work during the manufacturing process and the buffering effect may be lowered. On the other hand, when formed to 0.1mm or more may reduce the mechanical stiffness.

However, in the drawing, one side of the short side shows a bent portion 12 divided into two rather than the buffer interval 12a. This is limited to the structure in which the connecting portion of the flexible printed circuit board (not shown) connected to the organic light emitting panel 20 is formed between the bent portions, and the present invention can form a buffer interval 12a on both the long side and the short side. have.

As described above, although the organic light emitting display device is described as an example of the flat panel display device, a flat panel display such as a liquid crystal display (LCD) and a field emission display (FED) Applicable throughout the device.

Therefore, it will be understood by those skilled in the art that the present invention may be variously modified and changed without departing from the spirit and scope of the present invention as set forth in the claims below.

1 is a plan view of an organic light emitting display device according to a first embodiment of the present invention.

2 is a cross-sectional view of the II ′ region of FIG. 1 of the present invention.

3 is a plan view of an organic light emitting display device according to a second exemplary embodiment of the present invention.

4 is a schematic view of a bezel according to Example 2 of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: Bezel 11: Substrate

12: bend portion 12a: buffer interval

20: organic electroluminescent display panel 21: device substrate

22: first electrode 23: organic light emitting layer

24: second electrode 27: sealant

30: sealing board 31: pad portion

Claims (9)

A flat panel display panel including a pad part and a plurality of pixels; And It includes a substrate portion for supporting the flat panel display panel and a bent portion bent in the same direction the edge of the substrate portion, and includes a bezel for receiving the flat panel display panel, And the bent portion is divided at a long side to have one or more buffer intervals. The method of claim 1, The buffer interval is a flat panel display, characterized in that 0.05mm to 0.1mm. The method of claim 1, And the bezel is a conductive metal material. The method of claim 1, And the bent portion is made of the same material as the substrate portion. The method of claim 1, And the bent portion is perpendicular to the substrate portion. The method of claim 1, And the flat panel display panel is an organic electroluminescent display panel including a first electrode, an organic light emitting layer formed on the first electrode, and a second electrode formed on the organic light emitting layer. A flat panel display panel including a pad part and a plurality of pixels; And It includes a substrate portion for supporting the flat panel display panel and a bent portion bent in the same direction the edge of the substrate portion, and includes a bezel for receiving the flat panel display panel, And the bent portion is divided into a long side and a short side to have one or more buffer intervals. The method of claim 7, wherein The buffer interval is a flat panel display, characterized in that 0.05mm to 0.1mm. The method of claim 7, wherein And the bent portion is perpendicular to the substrate portion.

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