KR100683745B1 - Flat panel display device - Google Patents

Abstract

According to an aspect of the present invention, there is provided a flat panel display device including an icon display unit and an image display unit, wherein the first connection wires provided in the icon display unit and the second connection wires provided in the image display unit are provided. In order to prevent corrosion of the connection wires due to a difference in voltage applied to the connection wires, an icon display unit, a plurality of first pads corresponding to the icon display unit, and the icon display unit may be used. First connection wires connecting the first pads to the first pads, an image display unit, a plurality of second pads corresponding to the image display unit, and a second connection connecting the image display unit and the second pads. At least one dummy provided between the wirings and the first pads and the second pads It provides a flat display apparatus comprising a line.

Description

Flat panel display device

1 is a plan view of a flat panel display device according to an exemplary embodiment of the present invention.

2 is a plan view illustrating the icon display unit of FIG. 1;

3 is a cross-sectional view taken along the line III-III of FIG.

4 is an enlarged plan view illustrating a portion A of FIG. 3.

5 is a cross-sectional view schematically showing a passively driven electroluminescent device which is an example of a device that may be provided in the image display unit of FIG.

6 is a cross-sectional view schematically showing an active driven electroluminescent device that is an example of a device that may be included in the image display unit of FIG.

7 is a plan view of a flat panel display device according to another exemplary embodiment of the present invention.

8 is an enlarged plan view of a portion B of FIG. 7;

<Brief Description of Major Codes in Drawings>

10: Substrate 11: Icon Display

12: Image display unit 13: Icon pad

14: image pad 15: main pad

16: 1st connection wiring 19: 2nd connection wiring

20: dummy wiring 111: first icon

112: second icon 113: third icon

114: fourth icon

The present invention relates to a flat panel display device, and more particularly, to a flat panel display device including an icon display unit and an image display unit, the first connection wires of the icon display unit and the second connection of the image display unit. The wirings are related to a flat panel display device in which the connection wirings are prevented from being corroded by a difference in voltage applied to the first connection wiring and the second connection wiring.

A flat panel display device is a display device configured to implement an image on a flat substrate such as a liquid crystal display device, an organic electroluminescent device, or an inorganic electroluminescent device.

The flat panel display device includes pixel electrodes having a predetermined pattern in the display area, and electrode pads for supplying power to the pixel electrodes outside the edge of the display area. Each of the electrode pads and the pixel electrode are electrically connected by electrode wires.

Such a flat panel display device is used for various purposes. In particular, when used as a display unit of an electric device such as a mobile phone, an icon display unit that reproduces a constant image, for example, an icon, and an image display unit that reproduces various images are always used. Will coexist.

In the above case, the image reproduced by the icon display unit is an icon or the like, and is an image without change in luminance. Therefore, the voltage input to the pixel electrode of the icon display unit is a DC voltage. On the other hand, since the image display unit reproduces various images, various gray levels are represented. Accordingly, various voltages are input to the pixel electrodes of the image display unit to express appropriate gray scales. As a result, the difference between the voltage input to the pixel electrode of the icon display unit and the pixel electrode of the image display unit may be up to approximately 18V. Accordingly, the same potential difference exists between the first pad for supplying power to the pixel electrode of the icon display unit and the second pad for supplying power to the pixel electrode of the image display unit, and the first pad adjacent to each other by the potential difference exists. There was a problem that corrosion of the pad and the second pad is caused.

SUMMARY OF THE INVENTION The present invention has been made to solve a number of problems, including the above problems, in a flat panel display device having an icon display unit and an image display unit, comprising: a first pad provided in the icon display unit and a first pad provided in the image display unit; An object of the present invention is to provide a flat panel display device in which the second pad is prevented from corroding the connection wires due to a difference in voltage applied to the first pad and the second pad.

In order to achieve the above object and other various objects, the present invention,

An icon display unit, a plurality of first pads corresponding to the icon display unit, first connection wires connecting the icon display unit and the first pads,

An image display unit, a plurality of second pads corresponding to the image display unit, second connection wires connecting the image display unit and the second pads,

The display device includes at least one dummy wire provided between the first pads and the second pads.

According to another aspect of the present invention, the icon display unit includes a plurality of first pixel electrodes, the first pads correspond to the respective first pixel electrodes, and the first connection wires correspond to the first pixel electrodes. And a first pad corresponding to the first pixel electrode.

According to another feature of the present invention, at least one first counter electrode corresponding to the first pixel electrodes is further provided on the first pixel electrodes, and the first pixel electrodes and the first counter electrode are further provided. The intermediate | middle layer containing a light emitting layer can be further provided in between.

According to another feature of the present invention, a DC voltage may be applied to the first pixel electrodes.

According to another feature of the present invention, the image display unit includes a plurality of second pixel electrodes of a stripe pattern, the second pads correspond to the respective second pixel electrodes, and the second connection lines The second pixel electrode and the second pad corresponding to the second pixel electrode may be connected.

According to still another aspect of the present invention, the image display unit may include a plurality of second counter electrodes of a stripe pattern disposed on the second pixel electrodes and orthogonal to the second pixel electrodes, and the second pixel electrodes. The semiconductor device may further include an intermediate layer provided in regions where the second counter electrodes cross each other and including at least a light emitting layer.

According to another feature of the invention, the image display unit includes a plurality of second pixel electrodes, the second pads correspond to each row provided with the second pixel electrodes, the second connection wirings Each row having two pixel electrodes and a second pad corresponding to the row may be connected.

In still another aspect, the image display unit includes at least one second counter electrode disposed on the second pixel electrodes and facing the first pixel electrodes, the second pixel electrodes, and the second pixel electrode. It is possible to further include an intermediate layer provided between the second counter electrodes and including at least the light emitting layer.

The present invention also to achieve the above object,

An icon display unit, at least one first counter electrode provided in the icon display unit, at least one first pad corresponding to the first counter electrode, the first counter electrode and the first counter electrode A first connection wire connecting the first pad to

An image display unit, at least one second counter electrode provided in the image display unit, at least one second pad corresponding to the second counter electrode, the second counter electrode and the second counter electrode A second connection wire connecting the second pad to

Provided is a flat panel display device comprising at least one dummy wire provided between the first pad and the second pad.

According to another aspect of the present invention, the first counter electrode and the second counter electrode may be opposing electrodes of the electroluminescent element.

The present invention also provides a substrate, a plurality of pixel electrodes provided on the substrate, at least one counter electrode provided on the pixel electrodes, and an upper portion of the substrate. First pads disposed on the substrate and corresponding to the pixel electrodes, second pads disposed on the substrate and corresponding to the counter electrode, and first pads corresponding to the pixel electrodes and the pixel electrodes. First connection wires, second connection wires connecting the counter electrode and the second pad corresponding to the counter electrode, and at least one dummy wire provided between the first pads and the second pad. It provides a flat panel display device characterized in that.

According to another aspect of the present invention, the pixel electrodes are provided in a stripe pattern, a plurality of counter electrodes are provided in a stripe pattern orthogonal to the pixel electrodes, a plurality of second pads are provided A plurality of second connection wires may be provided corresponding to each counter electrode, and the second pads corresponding to the counter electrodes and the counter electrodes may be connected to each other.

According to another feature of the present invention, the pixel electrodes are provided for each subpixel, the first pads correspond to each row with the pixel electrodes, and the first connection lines are each provided with the pixel electrodes. The row and the first pad corresponding to the row may be connected.

According to still another feature of the present invention, an intermediate layer including at least a light emitting layer may be provided between the pixel electrode and the counter electrode.

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

1 is a plan view of a flat panel display device according to an exemplary embodiment of the present invention, FIG. 2 is a plan view showing the icon display unit of FIG. 1, FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2, 4 is an enlarged plan view illustrating a portion A of FIG. 3.

Referring to the drawings, the icon display unit 11 and the image display unit 12 are provided on the substrate 10, and the first pads 13 and the second pads 14 are disposed on one side thereof. It is provided. In addition, a main pad 15 is disposed at the other end of the substrate 10 to be connected to the first pads 13 and the second pads 14. The first pads 13, the second pads 14, and the main pad 15 are mounted with a circuit board on which a plurality of electronic devices such as an IC are mounted.

The configuration of the pads 13, 14, 15 may be variously modified.

As shown in FIG. 2, the icon display unit 11 corresponds to a region in which various types of icons are driven in an ON / OFF manner, and the image display unit 12 is driven in a passive matrix or an active matrix manner. This corresponds to an area for implementing a predetermined image. According to the present embodiment, the icon display unit 11 and the image display unit 12 are divided, but may be formed integrally as necessary.

The icon display unit 11 and the image display unit 12 may be provided with various display elements, and may be provided with an electroluminescent element. Hereinafter, a case in which the electroluminescent device is provided for convenience will be described.

FIG. 2 illustrates the icon display unit 11 and the first pads 13 of the flat panel display device in detail, and FIG. 3 is a cross-sectional view of the I-I of FIG. 2.

Icons arranged on the icon display unit 11 may be provided in various shapes. FIG. 2 illustrates a first icon 111, a second icon 112, a third icon 113, and a fourth icon 114. ) Only.

The first icon 111, the second icon 112, the third icon 113, and the fourth icon 114 are the first icon pads 131 and the second icon pad of the first pads 13, respectively. 132, the third icon pad 133, and the fourth icon pad 134. First connection wires 16 are provided between the icons 111, 112, 113, 114, and the icon pads 131, 132, 133, and 134. The first connection wires 16 may include a first icon 111 and first icon pads 131, a second icon 112, a second icon pad 132, a third icon 113, and a third icon. The icon pad 133 and the fourth icon 114 and the fourth icon pad 134 are connected to each other.

As shown in FIG. 2, the first icon 111 may have an antenna shape. Each of the lines 111a, 111b, 111c, and 111d constituting the antenna shape of the first icon 111 may be used. 111e, 111f, and 111g are provided as pixel electrodes, and some of the wires 161 of the first connection wires 16 are each of the lines 111a and 111b of the first icon 111. Each of the first and second icon pads 131 is connected to one of the pixel electrodes 111c, 111d, 111e, 111f, and 111g. 111b, 111c, 111d, 111e, 111f, and 111g, respectively.

The second icon 112 may be shaped like a letter, and the pixel electrode 112a of the second icon 112 may be formed into a rectangular shape that is a whole letter. That is, as shown in FIG. 3, predetermined openings 171, 172, and 173 are formed in the insulating layer 17 formed on the pixel electrode 112a, and thus may have a letter shape as shown in FIG. 2. At least one of the first connection wires 16 is connected to the pixel electrode 112a of the second icon 112, and thus is connected to the second icon pad 132.

The third icon 113 and the fourth icon 114 may represent AM and PM of time display, respectively. The pixel electrodes 113a and 114a of the third icon 113 and the fourth icon 114 are formed in a rectangular shape, and these pixel electrodes are similar to those of the second icon 112 described above. The shape may be defined by an insulating film (not shown) disposed on the (113a) (114a). At least one wires 163 and 164 of the first connection wires 16 are also connected to the pixel electrodes 113a and 114a of the third icon 113 and the fourth icon 114, respectively. Accordingly, the third icon pad 133 and the fourth icon pad 134 are connected to each other.

Each of the icons 111, 112, 113, 114 has a cross-sectional structure as shown in FIG. 3. Hereinafter, only the second icon 112 will be described, but all other icons are the same.

First, a buffer layer 10a is formed on the substrate 10.

Substrate 10 may be a transparent glass material, in addition, acrylic, polyimide, polycarbonate, polyester, mylar and other plastic materials may be used.

The buffer layer 10a is to prevent diffusion of impurity ions, and may be formed of SiO _2, or the like, and when the substrate 10 is made of plastic, etc., may be formed as a barrier layer to prevent penetration of moisture or external air. have.

The pixel electrode 112a, which is one of the first pixel electrodes provided in the icon display unit 11, is formed on the buffer layer 10a in a predetermined pattern, and the pixel electrode 112a includes the first connection wires 16. ) Is connected to at least one connection line 162.

The first connection wires 16 may be provided in two layers. The first connection wires 16 may be formed of the same material as the pixel electrode 112a, and may be further provided with Cr having high conductivity. Of course, the first connection wires 16 may be formed in a single layer.

An insulating film 17 is formed on the pixel electrode 112a by an organic material such as acrylic, BCB, polyimide, or an inorganic material such as silicon oxide or silicon nitride. Predetermined openings 171, 172, 173 are formed in the insulating layer 17 to expose a predetermined portion of the pixel electrode 112a to function as a pixel define layer.

Next, an intermediate layer 112b including at least a light emitting layer is formed at least on the pixel electrode 112a.

After the intermediate layer 112b is formed, a second counter electrode 18 which is an upper electrode of the electroluminescent element is formed. The second counter electrode 18 may be formed to cover all of the icons of the icon display unit 11 in FIG. 2, but is not necessarily limited thereto and may be patterned.

The first pixel electrode 112a and the first counter electrode 18 are insulated from each other by the intermediate layer 112b and the insulating layer 17. The intermediate layer 112b is formed by applying voltages having different polarities to the intermediate layer 112b. Emission is made in the light emitting layer included in the.

Meanwhile, the first pixel electrode 112a functions as an anode electrode, and the first counter electrode 18 functions as a cathode electrode. Of course, the first pixel electrode 112a and the first counter electrode ( The polarity of 18) may be reversed.

The first pixel electrode 112a may be provided as a transparent electrode or a reflective electrode. When used as the transparent electrode, the first pixel electrode 112a may be provided as ITO, IZO, ZnO, or In ₂ O ₃ . , Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, and a reflective film may be formed, and then ITO, IZO, ZnO, or In ₂ O ₃ may be formed thereon.

Meanwhile, the first counter electrode 18 may also be provided as a transparent electrode or a reflective electrode. When the counter electrode 18 is used as a transparent electrode, since the counter electrode 18 is used as a cathode, a metal having a small work function, that is, Li and Ca , LiF / Ca, LiF / Al, Al, Mg, and their compounds are deposited to face in the direction of the intermediate layer 112b, and thereafter for forming transparent electrodes such as ITO, IZO, ZnO, or In ₂ O ₃ The material may form an auxiliary electrode layer or a bus electrode line. When used as a reflective electrode, Li, Ca, LiF / Ca, LiF / Al, Al, Mg, and compounds thereof are formed by full deposition.

The intermediate layer 112b may be formed of an inorganic material or an organic material. In the latter case, a low molecular or polymer organic material may be used. In case of using low molecular organic materials, a hole injection layer (HIL), a hole transport layer (HTL), an organic emission layer (EML), an electron transport layer (ETL), an electron injection layer (EIL) : Electron Injection Layer) can be formed by stacking single or complex structure, and usable organic materials are copper phthalocyanine (CuPc), N, N-di (naphthalen-1-yl) -N, N '-Diphenyl-benzidine (N, N'-Di (naphthalene-1-yl) -N, N'-diphenyl-benzidine: NPB), tris-8-hydroxyquinoline aluminum ( Alq3) can be used in various ways. These low molecular weight organic substances are formed by the method of vacuum deposition.

In the case of using a polymer organic material, it may have a structure generally provided with a hole transporting layer (HTL) and a light emitting layer (EML), wherein PEDOT is used as the hole transporting layer, and a poly-phenylenevinylene (PPV) -based and polyflu as the light emitting layer. Polymeric organic materials such as ore (Polyfluorene) are used and can be formed by screen printing or inkjet printing.

As described above, the image display unit 12 is provided in addition to the icon display unit 11 as described above, and the image display unit 12 may also include various display elements. In particular, when the electroluminescent device is provided, a passive driving electroluminescent device or an active driving electroluminescent device may be provided.

When the passive driving type electroluminescent device is provided, as illustrated in FIG. 5, a buffer layer 221 is formed on SiO ₂ or the like on the substrate 202, and a second pixel electrode (eg, on the buffer layer 221) is formed. 231 is formed in a predetermined pattern, for example, a stripe pattern, and an intermediate layer 233 including a light emitting layer and a second opposing electrode 234 are sequentially formed on the second pixel electrode 231. An insulating layer 232 may be further interposed between the lines of the second pixel electrode 231, and the second counter electrode 234 may be formed in a pattern orthogonal to the pattern of the second pixel electrode 231. Can be. Although not shown in the drawing, a separate insulating layer may be further provided in a pattern orthogonal to the second pixel electrode 231 for the pattern of the second counter electrode 234.

The material of the intermediate layer 233, the second pixel electrode 231, and the second counter electrode 234 is as described above.

When the active driving type electroluminescent device is provided, as shown in FIG. 6, each device includes at least one thin film transistor (TFT).

The thin film transistor is not necessarily limited to the structure shown in FIG. 6, and the number and structure may be variously modified. The active driving electroluminescent device will be described in more detail as follows.

As shown in FIG. 6, a buffer layer 221 is formed of SiO ₂ on the glass substrate 202, and the above-described thin film transistor is provided on the buffer layer 221.

The thin film transistor includes an active layer 222 formed on the buffer layer 221, a gate insulating layer 223 formed on the active layer 222, and a gate electrode 224 on the gate insulating layer 223. A gate electrode 224 is formed in a predetermined region above the gate insulating layer 223. The gate electrode 224 is connected to a gate line for applying a thin film transistor on / off signal. The region where the gate electrode 224 is formed corresponds to the channel region of the active layer 222.

An inter-insulator 225 is formed on the gate electrode 224, and a source electrode and a drain region of the active layer 222 are connected to the source electrode 226 and the drain electrode 227 through contact holes. It is formed to be in contact with.

A passivation film 628 made of SiO ₂ or the like is formed on the source electrode 226 and the drain electrode 227, and a pixel definition film 229 is formed on the passivation film 628 by acrylic, polyimide, or the like. Is formed. The passivation film 228 may serve as a protective film for protecting the thin film transistor, or may serve as a planarization film for planarizing an upper surface thereof.

Although not shown in the drawings, at least one capacitor is connected to the thin film transistor. The circuit including the thin film transistor is not necessarily limited to the example illustrated in FIG. 6, and may be variously modified.

On the other hand, an electroluminescent element is connected to the drain electrode 227. The second pixel electrode 231 of the electroluminescent element is formed on the passivation film 228, and an insulating pixel definition film 229 is formed on the second pixel electrode 231 and provided on the pixel definition film 229. The intermediate layer 233 including at least the light emitting layer is formed in the predetermined opening. In FIG. 6, the intermediate layer 233 is shown to be patterned so as to correspond only to the subpixels. However, the intermediate layer 233 is illustrated as such for convenience of description of the configuration of each subpixel, and the intermediate layer 233 is formed of an adjacent subpixel. Of course, it can be formed integrally with the intermediate layer.

The material of the second pixel electrode 231 and the second counter electrode 234, the intermediate layer 233 interposed between the electrodes may be the same as described above.

The electroluminescent element formed on the board | substrate 202 is sealed by the opposing member (not shown). The opposing member may be formed of a glass material or a plastic material in the same manner as the substrate 202. In addition, the opposing member may be formed of a metal cap or the like.

In the flat panel display device having the above structure, as illustrated in FIG. 4, first pads 13 connected to the icon display unit 11 and second pads connected to the image display unit 12. At least one dummy wiring 20 is provided between the 14.

In the case of the present exemplary embodiment, the first pads 13 are connected to the first pixel electrodes of the icon display unit 11 by the first connection lines 16. On the other hand, when the image display unit 12 is provided with a manually driven display device as shown in FIG. 5, the second pads 14 are connected to the image by the second connection wires 19. The display unit 12 is connected to the plurality of second pixel electrodes of the stripe pattern. When the image display unit 12 is provided with an active driving display device as shown in FIG. 6, second pads are provided in the image display unit 12 by second connection wires 19. Are connected to each row of second pixel electrodes. At least one dummy wire 20 is provided between the first pads 13 and the second pads 14.

As described above, only a DC voltage is applied to the first pixel electrode provided in the icon display unit. In other words, the icons have only two operations when they are displayed and when they are not displayed, and it is not necessary to adjust the brightness of the icons. On the other hand, various voltages are applied to the second pixel electrode of the image display unit to adjust the contrast of the image to be reproduced. Accordingly, the potential difference between the voltage applied to the first pixel electrode and the voltage applied to the second pixel electrode may be up to 18V, and thus may be electrically connected to the first pixel electrode and the second pixel electrode, respectively. The same potential difference is applied to the first pads 13 and the second pads 14. When the potential difference is repeatedly applied, the first pads 13 and the second pads 14 may be corroded by the potential difference, which causes a reduction in the life of the flat panel display device.

Accordingly, as described above, at least one dummy wiring 20 is provided between the first pads 13 and the second pads 14 to thereby provide the first pads 13 and the second pads. While increasing the space between the pads 14, the potential difference between the first pads 13 and the dummy wiring 20 adjacent thereto, and the second pads 14 and the dummy wiring 20 adjacent thereto. The potential difference between the first pads 13 is smaller than the potential difference formed between the first pads 13 and the second pads 14 when the dummy wiring 20 is not provided. And corrosion of the second pads 14 may be prevented.

Meanwhile, the corrosion may occur between the first connection wires 16 and the second connection wires 19. The first pads 13 and the second pads 14 may also occur. By providing dummy wires 20 between the first and second wires 20, the gap between the first connection wires 16 and the second connection wires 19 may be increased to prevent corrosion.

In the above embodiment, the electroluminescent device has been described as an example, but the present invention may be applied to various display devices such as a liquid crystal display device.

Meanwhile, in the above description, only the structure in which at least one dummy wire is provided between the first pads and the second pads connected to the pixel electrodes of the icon display unit and the pixel electrodes of the image display unit, respectively. As described above, this may be applied as it is, even between opposite electrodes facing the pixel electrodes. That is, when the pads connected to the first counter electrodes of the icon display unit are called first pads, the pads connected to the second counter electrodes of the image display unit are called second pads. At least one dummy wire may be provided between the pads and the second pads to prevent corrosion due to a potential difference between the first pads and the second pads.

7 is a plan view of a flat panel display device according to another exemplary embodiment of the present invention, and FIG. 8 is an enlarged partial view of part B of FIG. 7.

Referring to the drawings, the display unit 312 is provided in the flat panel display device 310, and a pad unit 315 including pads connected to the display unit 312 is provided. The display unit 315 and the pads are electrically connected to each other.

The display unit 312 includes a plurality of pixel electrodes, and at least one counter electrode is provided on the pixel electrodes. The display unit 312 may be provided with various display elements including a pixel electrode and an opposite electrode. For example, when an intermediate layer including at least a light emitting layer having a structure as described above is provided between the pixel electrode and the counter electrode, it becomes an electroluminescent element.

When the display elements included in the display unit 312 are passively driven, pixel electrodes are provided in a stripe pattern, and a plurality of counter electrodes are provided in a stripe pattern orthogonal to the pixel electrodes. As shown in FIG. 8, first pads 315a corresponding to each pixel electrode are provided, and first connection wires 325a connecting the pixel electrode and the first pad corresponding to the pixel electrode. ) Is provided. In this case, second pads 315b corresponding to the opposite electrodes of the stripe pattern are respectively provided, and second connection wires 325b are provided to connect the respective opposite electrodes to the second pads corresponding to the opposite electrodes. do.

In this case, the first pads 315a and the second pads 315b may be provided in the same pad part 315. In this case, the first pads 315a and the second pads ( There is a potential difference between 315b), so that the pads can be corroded by this potential difference. Therefore, by providing at least one dummy wire 320 between the first pads 315a and the second pads 315b, such corrosion can be prevented.

Meanwhile, when the display elements included in the display unit 312 are active driven, pixel electrodes are provided for each subpixel, first pads are provided to correspond to each row in which the pixel electrodes are provided, and the pixel electrode is provided. First connection wires connecting each row with the plurality of rows and the first pad corresponding to the row. At least one counter electrode is provided on the pixel electrodes, a second pad corresponding to the counter electrode is provided, and a second connection wire connecting the counter electrode and the second pad is provided.

In this case, both the first pad and the second pad may be provided in the pad part 315 of FIG. 7. Therefore, a potential difference is generated between the first pads and the second pad, so that at least one dummy wire is provided between the first pads and the second pad, thereby causing corrosion due to the potential difference. Can be prevented.

According to the flat panel display device of the present invention made as described above, the first pads electrically connected to the icon display unit by the first connection wiring, and the second electrically connected to the image display unit by the second connection wiring By providing dummy wires between the pads, corrosion of the first pad and the second pad can be prevented, and the life of the flat panel display device can be extended.

In addition, the dummy wiring may be provided between the first pad connected to the pixel electrode of the display unit and the second pad connected to the opposite electrode, thereby preventing corrosion of the first pad and the second pad.

Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (14)

An icon display unit having a plurality of first pixel electrodes to which a DC voltage is applied, a plurality of first pads corresponding to the first pixel electrodes of the icon display unit, each of the first pixel electrodes of the icon display unit First connection wires connecting the first pads corresponding to the first pixel electrode; An image display unit, a plurality of second pads corresponding to the image display unit and applying a variable voltage to the image display unit, second connection wires connecting the image display unit and the second pads; And a dummy wiring provided between the first pads and the second pads. delete The method of claim 1, A first counter electrode corresponding to the first pixel electrodes is further provided on the first pixel electrodes, and an intermediate layer including a light emitting layer is further provided between the first pixel electrodes and the first counter electrode. A flat panel display device. delete The method of claim 1, The image display unit includes a plurality of second pixel electrodes of a stripe pattern, the second pads correspond to each of the second pixel electrodes, and the second connection lines are respectively the second pixel electrode and the second pixel electrode. And a second pad corresponding to the second flat display device. The method of claim 5, The image display unit, Second opposing electrodes disposed on the second pixel electrodes and perpendicular to the second pixel electrodes; And And an intermediate layer provided in regions where the second pixel electrodes and the second opposing electrodes cross each other and including an emission layer. The method of claim 1, The image display unit includes a plurality of second pixel electrodes, the second pads correspond to each row including the second pixel electrodes, and the second connection wires correspond to each row including the second pixel electrodes. And a second pad corresponding to the row. The method of claim 7, wherein The image display unit, A second opposing electrode disposed on the second pixel electrodes and opposing the first pixel electrodes; And And an intermediate layer disposed between the second pixel electrodes and the second opposing electrode and including an emission layer. An icon display unit, a first counter electrode provided with the icon display unit, to which a DC voltage is applied, a first pad corresponding to the first counter electrode, the first counter electrode, and a first pad corresponding thereto; With the first connection wiring, An image display unit, a plurality of second pixel electrodes of a stripe pattern included in the image display unit, the image display unit, disposed on the second pixel electrodes, and intersect the second pixel electrodes; A second connection line connecting the second opposing electrodes of the stripe pattern to which the variable voltage is applied, the second pads corresponding to the second opposing electrodes, and the respective second opposing electrodes and the second pads corresponding thereto. Field, And a dummy wiring provided between the first pad and the second pad. The method of claim 9, And the first counter electrode and the second counter electrode are opposite electrodes of the electroluminescent element, respectively. Board; A plurality of pixel electrodes disposed on the substrate; An opposite electrode provided on the pixel electrodes; First pads disposed on the substrate and corresponding to the pixel electrodes; A second pad provided on the substrate and corresponding to the counter electrode; First connection wires connecting the pixel electrodes to first pads corresponding to the pixel electrodes; Second connection wires connecting the counter electrode and a second pad corresponding to the counter electrode; And And a dummy wiring provided between the first pads and the second pad. The method of claim 11, The pixel electrodes may be provided in a stripe pattern, and the plurality of counter electrodes may be provided in a stripe pattern orthogonal to the pixel electrodes, and the plurality of second pads may be provided and correspond to the counter electrodes. 2 is provided with a plurality of connection wires and the flat display device, characterized in that for connecting each of the opposite electrode and the second pad corresponding to the opposite electrode. The method of claim 11, The pixel electrodes are provided for each subpixel, the first pads correspond to each row provided with the pixel electrodes, and the first connection wires correspond to each row provided with the pixel electrodes and a first corresponding to the row. Flat panel display device characterized in that for connecting the pad. The method of claim 11, And an intermediate layer including a light emitting layer between each pixel electrode and the counter electrode.

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