KR20110018594A - Flat panel display device - Google Patents

Abstract

PURPOSE: A flat panel display device is provided to easily and precisely process the manufacturing process. CONSTITUTION: A display panel(200), a linked board(210), a window(500), an alignment reference pattern(220), and a queue confirmation area(520). The display panel is connected to the linked board. The window is located on surface the display panel and the linked board. The alignment reference pattern which is projected to alignment checking area is included in the window. The linked board is made of an FPCB(Flexible Printed Circuit Board).

Description

Flat Panel Display {FLAT PANEL DISPLAY DEVICE}

An embodiment relates to a flat panel display.

In general, various portable electronic devices such as mobile phones and PDAs include a display device for displaying an image. Various types of display devices may be used, but flat panel displays such as liquid crystal displays (LCDs) and organic light emitting diodes (OLEDs) having excellent space efficiency are widely used.

The flat panel display device mounted on the electronic device includes a window for protecting the display panel exposed to the outside. The window may be mounted by laminating a polarizing plate on a display panel and then attaching the resin using a resin or a double-sided tape.

The embodiment provides a flat panel display device which can easily and precisely perform a process of combining a window and a display panel.

A flat panel display device according to an embodiment includes a display panel; A connection substrate connected to the display panel; And a window positioned on the display panel and the connection substrate; The connecting substrate includes an alignment reference pattern, and the window includes an alignment confirmation area in which the alignment reference pattern is projected.

A flat panel display device according to an embodiment includes a display panel; A connection substrate connected to the display panel and including an alignment reference pattern in a predetermined area; Located on the display panel and the connection substrate, except for the exposed area where the image of the display panel is projected, the alignment confirmation area where the alignment reference pattern of the connection substrate is projected, and the exposure area and the alignment confirmation area. And a shielding area for shielding the area.

According to the embodiment, it is possible to provide a flat panel display device capable of easily and precisely performing a process of combining a window and a display panel.

Hereinafter, a flat panel display device according to an embodiment will be described in detail with reference to the accompanying drawings. In the description of an embodiment, each layer (film), region, pattern, or structure is formed “on” or “under” a substrate, each layer (film), region, pad, or pattern. In the case where it is described as "to", "on" and "under" include both "directly" or "indirectly" formed. Also, the criteria for top, bottom, or bottom of each layer will be described with reference to the drawings. In the drawings, the thickness or size of each layer is exaggerated, omitted, or schematically illustrated for convenience and clarity of description. In addition, the size of each component does not necessarily reflect the actual size.

1 is an exploded perspective view of a flat panel display device according to an embodiment, and schematically illustrates a configuration for coupling the window 500 and the display panel 200 to each other.

As shown in FIG. 1, a flat panel display device according to an exemplary embodiment includes a display panel 200 on which data is displayed, a polarizer 300 disposed on the display panel 200, and a polarizer 300 positioned on the polarizer 300. And a window 500.

The display panel 200 displays data such as text and an image, and the like may be a flat panel such as a liquid crystal display (LCD) panel or an organic light emitting diode (OLED) panel. The polarizer 300 is in close contact with the image display area in the display panel 200 to improve the quality of the image displayed on the display panel 200.

The driver IC 205 for controlling the display function may be mounted on the display panel 200 in a chip on glass (COG) method.

In addition, the display panel 200 is connected to the main board (not shown) and the connection board 210 as an interface for inputting and outputting signals. The connection substrate 210 may be configured by forming wiring and connection pads for signal input / output on a flexible printed circuit board (hereinafter referred to as FPCB). The connection substrate 210 may be connected to the display panel 200 by a FOG (Fpcb On Glass) method by using an adhesive material 215 such as an anisotropic conductive film layer.

An alignment reference pattern 220 for checking an alignment state is formed on a surface of the connection substrate 210 on which the window 500 is seated. The alignment reference pattern 220 may be formed by printing a pattern such as letters, numbers, and figures on the surface of the connection substrate 210.

The window 500 is disposed above the display panel 200 to which the connection substrate 210 is connected to protect the display panel 200. Thus, the window 500 may be formed of a plastic material or glass material such as acrylic having impact resistance.

The window 500 transmits light emitted from the display panel 200 to shield the exposed area 510 and the component areas of the display panel 200 so that an image displayed on the display panel 200 is viewed from the outside. Shielding area 515 for the device. The shielding area 515 may be formed by printing a shielding pattern on the window 500 or by adhering a film.

In the region in which the connecting substrate 210 is arranged in the shielding region 515 of the window 500, an alignment checking region 520 is formed to project the alignment reference pattern 220 of the connecting substrate 210 during assembly. The alignment confirmation area 520 is an area where the transparent window 500 is exposed by removing the pattern of the shielding area 515. Can be formed.

2 is a plan view of a flat panel display device according to an exemplary embodiment, and illustrates a state in which the polarizer 300 and the window 500 are sequentially positioned on the display panel 200 according to the above-described configuration.

When the window 500 is arranged on the uppermost layer, the bonding area between the driver IC 205 and the connecting substrate 210 mounted on the display panel 200 is shielded by the shielding area 515 of the window 500. The image display area of the display panel 200 is projected through the exposed area of the window 500, and the alignment reference pattern 220 of the connection substrate 210 is disposed in the alignment check area 520 formed in the shielding area 515. Is projected.

Thus, it is determined whether the connection substrate 210 is aligned at the correct position according to the alignment state of the alignment reference pattern 220 projected on the alignment confirmation area 520, and whether the window 500 is arranged at the correct position. Can be determined. When it is determined that the window 500 is correctly arranged, the operator may use the optical elastic resin (Super View® Resin (SVR)) or the optically clear adhesive (OCA® Optically Clear Adhesive) to connect the display panel 200 and the connection board. 210 may be adhered to the window 500.

3 is an enlarged perspective view illustrating main parts of the flat panel display device according to the exemplary embodiment, illustrating an alignment state of the alignment check region 520 of the window 500 and the alignment reference pattern 220 of the connection substrate 210.

3A illustrates a case in which the window 500 and the connection substrate 210 are correctly aligned. When the window 500 and the connection substrate 210 are correctly aligned, the alignment reference pattern 220 is arranged at the center of the alignment confirmation area 520 of the window 500.

(b) illustrates a case where the alignment state of the window 500 and the connection board 210 is poor. When the window 500 and the connection substrate 210 are not arranged at the correct position, the alignment check pattern 220 and the alignment check area 520 of the window 500 are also misaligned. Therefore, the alignment reference pattern 220 exposed through the alignment confirmation area 520 is biased and displayed in a specific direction, thereby confirming that the window 500 is aligned at an incorrect position. Accordingly, the alignment state may be corrected by adjusting the position of the window 500 according to the vertical, horizontal, left, and right directions of the alignment reference pattern 220.

As described above, the display device according to the present exemplary embodiment forms the alignment confirmation area 520 in the shielding area 515 of the window 500, and the alignment reference pattern () in the connection substrate 210 of the display panel 200. 220 may be formed to easily check the arrangement position of the window 500 and the display panel 200. Thus, the precision of the window 500 attachment process may be improved, and the non-determination of the window 500 may be easily performed after the window 500 is attached.

Although described above with reference to the embodiment is only an example and is not intended to limit the invention, those of ordinary skill in the art to which the present invention does not exemplify the above within the scope not departing from the essential characteristics of this embodiment It will be appreciated that many variations and applications are possible. For example, each component specifically shown in the embodiment can be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

1 is an exploded perspective view of a flat panel display device according to an embodiment;

2 is a plan view of a flat panel display device according to an embodiment;

3 is an enlarged perspective view of main parts of a flat panel display device according to one embodiment;

Claims (9)

Display panel; A connection substrate connected to the display panel; And A window disposed on the display panel and the connection substrate; And the connecting substrate includes an alignment reference pattern, and the window includes an alignment confirmation area in which the alignment reference pattern is projected. The method of claim 1, The connection substrate includes a flexible printed circuit board (FPCB). The method of claim 1, And the alignment reference pattern includes at least one of letters, numbers, and figures. The method of claim 1, The window is, An exposed area to which an image display area of the display panel is projected; A shielding area for shielding the remaining area except for the exposed area; And the alignment checking area is formed at a position corresponding to an alignment reference pattern of the connection board among the shielding areas. The method of claim 1, And a bonding layer interposed between the display panel and the connecting substrate and the window. Display panel; A connection substrate connected to the display panel and including an alignment reference pattern in a predetermined area; Located on the display panel and the connection substrate, except for the exposed area where the image of the display panel is projected, the alignment confirmation area where the alignment reference pattern of the connection substrate is projected, and the exposure area and the alignment confirmation area. A flat panel display comprising a window including a shielding area for shielding an area. The method of claim 6, The connection substrate includes a flexible printed circuit board (FPCB). The method of claim 6, And the alignment reference pattern includes at least one of letters, numbers, and figures. The method of claim 6, And a bonding layer interposed between the display panel and the connecting substrate and the window.

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