KR100598716B1 - Dual panel - Google Patents

Abstract

The present invention relates to a dual panel sharing scan lines. The panel includes a first organic electroluminescent element, a second organic electroluminescent element and connections. Each of the first organic electroluminescent devices includes a plurality of first pixels in which a first indium tin oxide layer, a first organic material layer, and a first metal electrode layer are sequentially formed on a first substrate. Each of the second organic electroluminescent devices includes a plurality of second pixels in which a second indium tin oxide layer, a second organic material layer, and a second metal electrode layer are sequentially formed on a second substrate. The connecting portions connect the first metal electrode layers and the corresponding second metal electrode layers, respectively. Since the panel connects the first metal electrode layers and the second metal electrode layers through the connecting portions, scan lines are not required in one of the first organic electroluminescent element and the second organic electroluminescent element.

Covalent, Scanned, Electrode Layer

Description

Dual Panel {DUAL PANEL}

1 is a schematic cross-sectional view of a dual panel according to an exemplary embodiment of the present invention.

2 is a schematic view of the panel of FIG. 1 in accordance with a preferred embodiment of the present invention.

3 is a schematic view of the panel of FIG. 1 in accordance with another preferred embodiment of the present invention.

The present invention relates to a panel, and more particularly to a dual panel sharing scan lines.

The panel refers to a device capable of displaying a predetermined image. Hereinafter, a panel having two organic electroluminescent elements symmetrically arranged will be described in detail.

In general, in order to display an image on both sides, such as before and after the liquid crystal of the mobile phone, a conventional panel includes a predetermined image including two separate organic electroluminescent elements. In this case, however, the conventional panel has driven the respective organic EL devices. As a result, even when implementing the same image on both sides, each had to have data lines and scan lines. Therefore, waste of lines was severe, and as a result, the space occupied by the panel could not be reduced. In addition, when these lines were present, the bonding was weak during the sealing process.

In addition, since each organic electroluminescent element must be sealed with a cap, the panel takes up a lot of space. Therefore, there is a need for a panel that can reduce the thickness of the panel and form strong bonding.

It is an object of the present invention to provide a dual panel that shares scan lines.

In order to achieve the above object, a panel according to a preferred embodiment of the present invention includes a first organic electroluminescent element, a second organic electroluminescent element and the connecting portion. Each of the first organic electroluminescent devices includes a plurality of first pixels in which a first indium tin oxide layer, a first organic material layer, and a first metal electrode layer are sequentially formed on a first substrate. Each of the second organic electroluminescent devices includes a plurality of second pixels in which a second indium tin oxide layer, a second organic material layer, and a second metal electrode layer are sequentially formed on a second substrate. The connecting portions connect the first metal electrode layers and the corresponding second metal electrode layers, respectively.

Since the panel according to the present invention connects the first metal electrode layers and the second metal electrode layers through the connecting portions, scan lines are not required in one of the first and second organic electroluminescent devices.

In addition, in the panel of the present invention, the panel of the present invention is provided with scan signals to the first and second metal electrode layers and the same data signal to the first and second indium tin oxide layers through the connecting portions. The light emitting device and the second organic electroluminescent device can display the same image without scan lines.

In addition, since the panel of the present invention can adjust the length of the connections and does not have a cell cap for the organic electroluminescent elements, the thickness of the panel is reduced.

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

1 is a schematic cross-sectional view of a dual panel according to an exemplary embodiment of the present invention.

Referring to FIG. 1, the panel of the present invention includes two organic electroluminescent elements symmetrically positioned.

The first organic electroluminescent device 20a includes a plurality of first pixels, each of the first pixels sequentially forming a first indium tin oxide film 40a formed on the substrate 10a, and The organic material layer 100a and the first metal electrode layer 120a are provided.

The first organic material layer 100a may include a first hole transporting layer (first HTL), a first emitting layer (first ETL), and a first electron transporting layer sequentially formed on the first indium tin oxide layer 40a. (first Electron Transporting Layer, first ETL). Alternatively, the first organic layer 100a may include a first hole injection layer (first HIL), a first hole transport layer, a first light emitting layer, and a first electron transport layer sequentially formed on the first indium tin oxide layer 40a. And a first electron injection layer (first EIL).

The second organic EL device 20b includes a plurality of second pixels, each of the second pixels including a second Indium Tin Oxide Film 40b sequentially formed on the substrate 10b. It has a second organic layer 100b and a second metal electrode layer 120b.

The second organic layer 100b includes a second hole transporting layer (second HTL), a second emitting layer (second ETL), and a second electron transporting layer sequentially formed on the second indium tin oxide layer 40b. (second Electron Transporting Layer, second ETL). Alternatively, the second organic material layer 100b may include a second hole injection layer (second HIL), a second hole transport layer, a second light emitting layer, and a second electron transport layer sequentially formed on the second indium tin oxide layer 40b. And a second electron injection layer (second EIL).

The connection parts 140 are conductors and connect the first metal electrode layers 120a and the corresponding second metal electrode layers 120b. Therefore, the panel of the present invention can display the same image on the organic electroluminescent devices 20a and 20b using common scan lines. Detailed description thereof will be described below with reference to the accompanying drawings.

In addition, since the lengths of the connection parts 140 may be formed corresponding to the inner space of the panel, the thickness of the panel may be reduced.

In addition, the panel of the present invention does not have a cell cap that seals the pixels. Therefore, the panel takes up less internal space than the conventional panel.

2 is a view showing the panel of FIG. 1 according to a preferred embodiment of the present invention.

As shown in FIG. 2, the first pixels are formed in a region where the first indium tin oxide layers 40a and the first metal electrode layers 120a intersect, and the second indium tin oxide layers 40b are formed. The second pixels are formed in an area where the second metal electrode layers 120b cross each other.

In addition, the first organic electroluminescent device 20a further includes first data lines 200a respectively coupled to the first indium tin oxide layers 40a, and the second organic electroluminescent device 20b includes a first organic electroluminescent device 20b. Second data lines 200b coupled to the second indium tin oxide layers 40b, first scan lines 220a and second metal electrode layers coupled to some of the second metal electrode layers 120b, respectively. The second scan lines 220b may further include the second scan lines 220b coupled to the rest of the 120b. Here, since the first metal electrode layers 120a are connected to the second metal electrode layers 120b through the connecting parts 140, scan lines are not required for the first organic EL device 20a. That is, voltages applied to the second metal electrode layers 120b through the scan lines 220a and 220b of the second organic electroluminescent device 20b are connected to the first metal electrode layers 120a through the connection parts 140. Is provided.

Hereinafter, the operation of the panel of the present invention will be described in detail.

The same data signal having a positive voltage is provided to the first data lines 200a and the second data lines 200b, and the scan signal having a negative voltage is provided to the scan lines 220a and 220b.

Subsequently, the data signal is provided to the indium tin oxide layers 40a and 40b through the data lines 200a and 200b, and the scan signal is provided through the metal electrode layers 120a and the scan lines 220a and 220b. 120b). As a result, the first organic electroluminescent element 20a and the second organic electroluminescent element 20b display the same image.

Unlike the conventional panel, the panel of the present invention connects the first metal electrode layers 120a and the second metal electrode layers 120b through the connecting portions 140, and thus, the first organic electroluminescent device 20a and the second electrode. Scan lines are not required in one of the organic EL devices 20b. Therefore, unlike the conventional panel, the panel of the present invention takes up less internal space and can form a strong bonding during the sealing process.

In addition, unlike the conventional panel, since the panel of the present invention connects the first metal electrode layers 120a and the second metal electrode layers 120b through the connection parts 140, the panel of the present invention is different from the conventional panel. The first organic EL device 20a and the second organic EL device 20b may display the same image without scan lines.

3 is a plan view of the panel of FIG. 1 in accordance with another preferred embodiment of the present invention.

As illustrated in FIG. 3, the first organic electroluminescent device 20a includes first indium tin oxide layers 40a, first metal electrode layers 120a, and first data lines 300a. In addition, the second organic EL device 20b includes second indium tin oxide layers 40b, second metal electrode layers 120b, second data lines 300b, and scan lines 320. .

The first metal electrode layers 120a of the first organic electroluminescent element 20a are respectively coupled to the second metal electrode layers 120b of the second organic electroluminescent element 20b through the connecting portions 140.

Except for the scan lines 320, the same function as that of the component of FIG. 2 is omitted.

The second metal electrode layers 120b are respectively coupled to the scan lines 320, and receive scan signals through the scan lines 320.

Subsequently, the provided scan signals are provided to the first metal electrode layers 120a through the connection parts 140. In addition, the data signal is provided to the indium tin oxide layers 40a and 40b through the data lines 300a and 300b. As a result, the first organic electroluminescent element 20a and the second organic electroluminescent element 20b display the same image.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having ordinary knowledge of the present invention will be able to make various modifications, changes, additions within the spirit and scope of the present invention, such modifications, changes and Additions should be considered to be within the scope of the following claims.

As described above, the panel according to the present invention connects the first metal electrode layers and the second metal electrode layers through the connecting portions, so that one of the first organic electroluminescent element and the second organic electroluminescent element has scan lines. Not required. Therefore, the panel of the present invention has an advantage of taking up less internal space than the conventional panel.

In addition, in the panel of the present invention, the panel of the present invention is provided with scan signals to the first and second metal electrode layers and the same data signal to the first and second indium tin oxide layers through the connecting portions. The light emitting device and the second organic EL device have an advantage of displaying the same image without scan lines.

In addition, the panel of the present invention has the advantage that the thickness of the panel can be reduced since the length of the connecting portions can be adjusted and there is no cell cap for the organic electroluminescent elements.

Claims (4)

A first organic electroluminescent device having a plurality of first pixels each having a first indium tin oxide layer, a first organic material layer and a first metal electrode layer sequentially formed on a first substrate; A second organic electroluminescent device having a plurality of second pixels each of which has a second indium tin oxide layer, a second organic material layer and a second metal electrode layer sequentially formed on a second substrate; And And a connecting portion connecting the first metal electrode layers and the second metal electrode layers corresponding thereto. The dual panel of claim 1, wherein each of the connection portions is a conductor. The semiconductor device of claim 1, further comprising: first data lines respectively coupled to the first indium tin oxide layers; Second data lines respectively coupled to the second indium tin oxide layers; And And dual scan lines coupled to the first metal electrode layers. 4. The dual panel of claim 3, wherein the same data signal is applied to the first and second data lines.

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