KR101707991B1 - Organic light emitting device and illuminator using the same - Google Patents

Abstract

The present invention relates to an organic light emitting device capable of improving light emission efficiency and improving the uniformity of light emission over a large area light emitting region, and an illumination device using the same. A first electrode portion formed on a first surface of the substrate to include a first transparent electrode layer and a first auxiliary electrode pattern partially connected to the first transparent electrode layer; A first organic layer formed on the first electrode portion to include a plurality of light emitting layers; A first electrode layer formed on the first organic layer; A second electrode portion formed on a second surface of the substrate to include a second transparent electrode layer and a second auxiliary electrode pattern partially connected to the second transparent electrode layer; A second organic layer formed on the second electrode portion to include a plurality of second light emitting layers; And a second electrode layer formed on the second organic layer.

Description

TECHNICAL FIELD [0001] The present invention relates to an organic light emitting device and an illumination device using the organic light emitting device.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic light emitting device, and more particularly, to an organic light emitting device capable of improving light emitting efficiency and improving uniformity of light emission over a large area light emitting region, and a lighting device using the same.

Generally, an organic light emitting device emits light by the combination of holes and electrons injected into a light emitting layer, and has advantages such as low power driving, self light emission, wide viewing angle, high resolution and color realization, I have. Such organic light emitting devices are being actively studied for application to information display windows, televisions, displays, and lighting for portable information devices, cameras, watches, office equipment, and automobiles.

However, since a general organic light emitting device emits light by using a current, there is a problem that the uniformity of light emission is lowered. That is, as the substrate becomes larger in area (for example, 1 inch (Inch) or more), the light emitting area increases, and the change of the resistance-current varies depending on the position of the substrate. There is a problem that the uniformity of light emission of the whole is deteriorated.

Korean Patent Laid-Open No. 2002-0008141 discloses a double-sided organic light emitting device by independently fabricating two organic light emitting devices, arranging them so as to face each other, and sealing them. As the conventional double-sided organic light emitting device becomes larger in size, the variation of the resistance-current varies depending on the position of the substrate, so that the uniformity of light emission of the entire light emitting region is reduced.

An object of the present invention is to provide an organic light emitting device capable of improving the luminous efficiency and improving the uniformity of light emission over the large area light emitting region, and a lighting apparatus using the same.

According to an aspect of the present invention, there is provided an organic light emitting device including: a substrate; A first electrode portion formed on a first surface of the substrate to include a first transparent electrode layer and a first auxiliary electrode pattern partially connected to the first transparent electrode layer; A first organic layer formed on the first electrode portion to include a plurality of light emitting layers; A first electrode layer formed on the first organic layer; A second electrode portion formed on a second surface of the substrate to include a second transparent electrode layer and a second auxiliary electrode pattern partially connected to the second transparent electrode layer; A second organic layer formed on the second electrode portion to include a plurality of second light emitting layers; And a second electrode layer formed on the second organic layer.

A plurality of line patterns formed on the substrate such that each of the upper and second auxiliary electrode patterns is partially connected to the transparent electrode layer; And a common line formed on the substrate so as to be commonly connected to the plurality of line patterns.

The plurality of line patterns may have the same or different line resistances.

At least one of the plurality of line patterns is formed to have one of a linear shape, a curved shape, and a zigzag shape.

And each of the plurality of line patterns is electrically connected to a central portion of each of the positive regions of the transparent electrode layer defined by a constant area.

The first electrode portion includes the first transparent electrode layer formed on the first surface of the substrate; The first auxiliary electrode pattern partially formed on the first transparent electrode layer; And a first insulating layer formed on the first transparent electrode layer so as to have the same shape as the first auxiliary electrode pattern and electrically insulating the first auxiliary electrode pattern and the first organic layer from each other. do.

The second electrode portion includes the second transparent electrode layer formed on the second surface of the substrate; The second auxiliary electrode pattern partially formed on the second transparent electrode layer; And a second insulating layer formed on the second transparent electrode layer so as to have the same shape as the second auxiliary electrode pattern and electrically insulating the second auxiliary electrode pattern from the second organic layer. do.

The second electrode portion includes the second auxiliary electrode pattern partially formed on the second surface of the substrate; A second insulating layer formed on a second surface of the substrate to cover the second auxiliary electrode pattern; A plurality of second contact holes formed in the second insulating layer overlapping the second auxiliary electrode pattern and exposing a part of the second auxiliary electrode pattern; And the second transparent electrode layer formed on the second insulating layer on which the plurality of second contact holes are formed and electrically connected to the second auxiliary electrode pattern through the plurality of second contact holes .

Wherein the first electrode portion includes the first auxiliary electrode pattern partially formed on the first surface of the substrate; A first insulating layer formed on a first surface of the substrate to cover the first auxiliary electrode pattern; A plurality of first contact holes formed in the first insulating layer overlapping the first auxiliary electrode pattern and exposing a part of the first auxiliary electrode pattern; And the first transparent electrode layer formed on the first insulating layer on which the plurality of first contact holes are formed and electrically connected to the first auxiliary electrode pattern through the plurality of first contact holes .

The second electrode portion includes the second transparent electrode layer formed on the second surface of the substrate; The second auxiliary electrode pattern partially formed on the second transparent electrode layer; And a second insulating layer formed on the second transparent electrode layer so as to have the same shape as the second auxiliary electrode pattern and electrically insulating the second auxiliary electrode pattern from the second organic layer. do.

The second electrode portion includes the second auxiliary electrode pattern partially formed on the second surface of the substrate; A second insulating layer formed on a second surface of the substrate to cover the second auxiliary electrode pattern; A plurality of second contact holes formed in the second insulating layer overlapping the second auxiliary electrode pattern and exposing a part of the second auxiliary electrode pattern; And the second transparent electrode layer formed on the second insulating layer on which the plurality of second contact holes are formed and electrically connected to the second auxiliary electrode pattern through the plurality of second contact holes .

And at least one of the first electrode layer and the second electrode layer is formed of a transparent material.

In the organic light emitting device, the first electrode part, the first organic layer and the first electrode layer constitute a first light emitting member, and the second electrode part, the second organic layer and the second electrode layer form a second light emitting member And the second light emitting member is formed to have the same area as the first light emitting member or have a relatively smaller area than the first light emitting member.

The first electrode layer is formed of a transparent material and the second electrode layer is formed of an opaque reflective material to reflect light emitted from the second light emitting member toward the first surface of the substrate.

Each of the upper and the second electrode portions is laminated between the substrate and the organic layer.

In the organic light emitting device, the first electrode part, the first organic layer and the first electrode layer constitute a first light emitting member, and the second electrode part, the second organic layer and the second electrode layer form a second light emitting member A first sealing member formed on a first surface of the substrate to seal the first light emitting member; And a second sealing member formed on a second surface of the substrate to seal the second light emitting member.

According to an aspect of the present invention, there is provided an illumination device comprising: an organic light emitting device; A first electrode portion formed on a first surface of the substrate to include a first transparent electrode layer and a first auxiliary electrode pattern partially connected to the first transparent electrode layer; A first organic layer formed on the first electrode portion to include a plurality of light emitting layers; A first electrode layer formed on the first organic layer; A second electrode portion formed on a second surface of the substrate to include a second transparent electrode layer and a second auxiliary electrode pattern partially connected to the second transparent electrode layer; A second organic layer formed on the second electrode portion to include a plurality of second light emitting layers; And a second electrode layer formed on the second organic layer.

And at least one of the first electrode layer and the second electrode layer is formed of a transparent material.

Wherein the first electrode portion, the first organic layer, and the first electrode layer constitute a first light emitting member, the second electrode portion, the second organic layer and the second electrode layer constitute a second light emitting member, The light emitting member is formed to have a relatively smaller area than the light emitting member.

The first electrode layer is formed of a transparent material and the second electrode layer is formed of an opaque reflective material to reflect light emitted from the second light emitting member toward the first surface of the substrate.

Wherein the first electrode portion, the first organic layer, and the first electrode layer constitute a first light emitting member in the illumination device, and the second electrode portion, the second organic layer, and the second electrode layer constitute a second light emitting member Wherein the organic light emitting device comprises: a first sealing member formed on a first surface of the substrate to seal the first light emitting member; And a second sealing member formed on a second surface of the substrate to seal the second light emitting member.

As described above, the organic light emitting device according to the present invention and the lighting apparatus using the organic light emitting device have the following effects.

First, by uniformly supplying current to the entire transparent electrode layer through the auxiliary electrode pattern, uniform white light can be emitted over the entire region of the light emitting region.

Second, white light is emitted to the first surface and the bottom surface of the substrate through the first light emitting member and the second light emitting member, respectively, to mutually compensate luminescence unevenness of the first light emitting member and the second light emitting member, , Emission spectrum, and lifetime can be improved.

Thirdly, the white light emitted from the second light emitting member is emitted to the central region of the first light emitting member formed on the first surface of the substrate, thereby improving the brightness. In addition, the white light emitted from the second light emitting member, It is possible to further improve luminance, color coordinates, luminescence spectrum, and lifetime.

Fourth, by insulating the auxiliary electrode pattern and the transparent electrode layer through the insulating layer including the ceramic particles, light uniformity and luminous efficiency can be improved through scattering and / or reflection of light by the ceramic particles.

1 is an exploded perspective view schematically showing an organic light emitting device according to a first embodiment of the present invention.
2 is a cross-sectional view schematically showing a cross-section of the AA line shown in Fig.
3 is a plan view schematically showing the first electrode unit or the second electrode unit shown in FIG.
FIG. 4 is a view schematically showing the structure of the first organic layer shown in FIG. 1. FIG.
FIG. 5 is a view schematically showing another embodiment of the first electrode unit shown in FIG. 1. FIG.
6 is an exploded perspective view schematically showing an organic light emitting device according to a second embodiment of the present invention.
7 is a cross-sectional view schematically showing a cross section of the BB line shown in Fig.
8 is a plan view schematically showing the first electrode portion or the second electrode portion shown in FIG.
FIG. 9 is a view schematically showing another embodiment of the first electrode unit shown in FIG. 6. FIG.
10 is a plan view schematically illustrating another embodiment of the first auxiliary electrode pattern in the organic light emitting device according to the second embodiment of the present invention.
11 is a plan view schematically illustrating another embodiment of the first auxiliary electrode pattern in the organic light emitting device according to the second embodiment of the present invention.
12 is a plan view for schematically explaining another embodiment of the second line pattern shown in FIG.
13 is an exploded perspective view schematically showing an organic light emitting device according to a third embodiment of the present invention.
14 is an exploded perspective view schematically showing an organic light emitting device according to a fourth embodiment of the present invention.
15 is an exploded perspective view schematically showing an organic light emitting device according to a fifth embodiment of the present invention.
16 is a cross-sectional view showing a cross section of the CC line shown in Fig.
17 is an exploded perspective view schematically showing an organic light emitting device according to a sixth embodiment of the present invention.
18 is a cross-sectional view showing a cross section of the DD line shown in Fig.
19 is a view for explaining dispersed particles contained in an insulating layer in an organic light emitting device according to embodiments of the present invention.

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

FIG. 1 is an exploded perspective view schematically showing an organic light emitting device according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view schematically showing a cross section taken along the line A-A shown in FIG.

1 and 2, an organic light emitting device 10 according to a first embodiment of the present invention includes a substrate 100, a first light emitting member 200, and a second light emitting member 300, do.

The substrate 100 is made of a material such as glass or plastic, and is preferably made of a transparent material.

The first light emitting member 200 includes a first electrode unit 210, a first organic layer 220, and a first electrode layer 230.

The first electrode unit 210 is formed on the upper surface of the substrate 100 and supplies current (or voltage) to the first organic layer 220. The first electrode unit 210 includes a first transparent electrode layer 212, a first auxiliary electrode pattern 214, and a first insulating layer 216.

The first transparent electrode layer 212 is formed on the upper surface of the substrate 100 to define a light emitting region having a predetermined area. That is, the first transparent electrode layer 212 may be formed in a region other than the edge portion of the substrate 100. The first transparent electrode layer 212 may be made of a transparent material having high transmittance or a transparent electrode material. For example, the first transparent electrode layer 212 is ZnO, ZnO: B, ZnO: Al, ZnO: H, SnO _2, SnO _2: F, ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), indium oxide (Indium Oxide), tin oxide (Tin Oxide), or graphene.

The first auxiliary electrode pattern 214 may be formed on the first transparent electrode layer 212 to be electrically connected to the first transparent electrode layer 212 to reduce the sheet resistance of the first transparent electrode layer 212, So that a uniform current (or voltage) is applied across the entire surface of the substrate. For this purpose, the first auxiliary electrode pattern 214 may be formed to have a mesh shape as shown in FIG. The line width and thickness of the first auxiliary electrode pattern 214 are preferably 1 nm or more. The first auxiliary electrode pattern 214 may include at least one of Al, Ca, Cr, Cu, Au, Fe, Mo, Ni, The first transparent electrode layer 212 may be made of at least one material selected from the group consisting of platinum (Pt), silver (Ag), graphene, and zinc (Zn) .

At least one terminal (not shown) is connected to at least one side of the first auxiliary electrode pattern 214, from which a driving voltage for emitting the first light emitting member 200 is supplied from the outside. Accordingly, the driving voltage supplied to the terminals is uniformly supplied over the entire surface of the first transparent electrode layer 212 through the first auxiliary electrode pattern 214.

The at least one terminal may be formed on at least one side of the first transparent electrode layer 212 corresponding to at least one side of the first auxiliary electrode pattern 214. In this case, Pattern 214 and the first transparent electrode layer 212 at the same time.

5, the first electrode unit 210, which includes the first transparent electrode layer 212, the first auxiliary electrode pattern 214, and the first insulating layer 216, And may have a laminated structure. At this time, the first auxiliary electrode patterns 214 of the plurality of first electrode units 210 are preferably formed in a staggered shape. As described above, when a plurality of the first electrode units 210 are stacked in a plurality, the number of the first transparent electrode layers 212 increases, so that the light extraction effect can be improved.

1 and 2, the first insulating layer 216 is formed on the first transparent electrode layer 212 so as to cover the first auxiliary electrode pattern 214 to form the first auxiliary electrode pattern 214 and the first organic layer 214. [ (220). For this, the first insulating layer 216 is formed to have the same shape as the first auxiliary electrode pattern 214.

The first organic layer 220 is formed on the upper surface of the substrate 100 so as to cover the first electrode unit 210 and recombines holes and electrons supplied from the first transparent electrode layer 212 and the first electrode layer 230 And emits light of a predetermined color. 4, the first organic layer 220 includes a hole injection layer 221, a hole transport layer 223, a plurality of

A light emitting layer 225, an electron transporting layer 227, and an electron injection layer 229.

The hole injection layer 221 is formed on the first transparent electrode layer 212 so as to cover the first insulating layer 216. Such a hole injection layer 221 may be omitted.

The hole transport layer 223 is formed on the hole injection layer 221 and transports the holes injected from the hole injection layer 221 to the light emitting layer 225. The hole transporting layer 223 may be formed to include a hole transporting material, or may have a structure in which hole transporting materials are stacked.

The plurality of light emitting layers 225 are formed between the hole transporting layer 223 and the electron transporting layer 227 and emit light by recombination of holes supplied from the first transparent electrode layer 212 and electrons supplied from the first electrode layer 230 .

For this purpose, the plurality of light emitting layers 225 according to the first embodiment may be formed by sequentially stacking different first and second light emitting layers for emitting white light. The light emitting layer is a blue light emitting layer and emits blue light through light emission. The second light emitting layer is a light emitting layer other than the blue light emitting layer, and emits light other than blue light through light emission. An intermediate layer (not shown) may be further formed between the first and second light emitting layers. Here, the intermediate layer controls the charge transfer to smooth the charge recombination in the first and second light emitting layers, and can be a charge blocking layer for preventing (or interfering with) the movement of the charge or a charge generating layer for generating charge have.

The plurality of light emitting layers 225 according to the second embodiment are configured to include red, green, and blue light emitting layers (not shown) for sequentially emitting white light. The intermediate layer (not shown) may be further formed between the light emitting layers.

The electron transport layer 227 is formed on the plurality of light emitting layers 225 to transport electrons injected from the electron injection layer 229 to the light emitting layer 225. The electron transporting layer 227 may be formed to include an electron transporting material, or the electron transporting material may have a laminated structure.

The electron injection layer 229 is formed on the electron transport layer 227. The electron injection layer 229 may be omitted.

The first organic layer 220 may further include a functional layer (not shown) formed on at least one layer between the layers 221, 223, 225, 227, and 229 to improve luminous efficiency and lifetime Lt; / RTI > Here, the functional layers include an electron blocking layer for blocking the movement of electrons, a blocking layer for blocking the movement of the holes, an electron blocking layer for blocking the movement of electrons, a hole blocking layer for blocking the movement of the holes, The blocking layer may be selected from at least one of the exciton blocking layers.

Each of the layers 221, 223, 225, 227 and 229 of the first organic layer 220 may be formed by a thermal evaporation process, a spin coating process, a dip coating process, A doctor blading process, an inkjet printing process, or a thermal transfer process.

The first electrode layer 230 is formed on the first organic layer 220 to provide electrons to the first organic layer 220. The first electrode layer 230 is made of the same transparent material as the first transparent electrode layer 212.

The first light emitting member 200 emits the first organic layer 220 formed between the first electrode 210 and the first electrode layer 230 to emit white light to the first electrode layer 230, Toward the member (300). At this time, the first light emitting member 200 supplies a uniform current to the entire first transparent electrode layer 212 through the first auxiliary electrode pattern 214, so that the first light emitting member 200 is formed on the entire surface of the light emitting region corresponding to the first transparent electrode layer 212 And emits uniform white light.

1 and 2, the second light emitting member 300 includes a second electrode unit 310, a second organic layer 320, and a second electrode layer 330.

The second electrode unit 310 is formed on the lower surface of the substrate 100 and supplies current (or voltage) to the second organic layer 320. The second electrode unit 310 includes a second transparent electrode layer 312, a second auxiliary electrode pattern 314, and a second insulating layer 316. The second electrode unit 310 having such a structure is formed in the same structure and size as the first electrode unit 210 of the first light emitting member 200 except that the second electrode unit 310 is formed on the lower surface of the substrate 100 Therefore, the description of the first electrode unit 210 will be omitted.

The second electrode part 310 including the second transparent electrode layer 312, the second auxiliary electrode pattern 314 and the second insulating layer 316 may be formed on the first electrode part 310, Like structure as in the first embodiment. In this way, when a plurality of second electrode units 310 are stacked in a plurality, the number of the second transparent electrode layers 312 increases, so that the light extraction effect can be improved.

The second organic layer 320 is formed on the lower surface of the substrate 100 so as to cover the second electrode unit 310 and is formed by recombination of holes and electrons supplied from the second transparent electrode layer 312 and the second electrode layer 330 And emits light of a predetermined color. 4, the second organic layer 320 includes a hole injection layer 221, a hole transport layer 223, a plurality of light emitting layers 225, an electron transport layer 227, and an electron injection layer 229). Since the second organic layer 320 having such a structure has the same structure as the first organic layer 220 described above, the description will be given instead of the above description, and the same reference numerals will be given.

In addition, the second organic layer 320 may further include at least one functional layer as described above.

The second electrode layer 330 is formed on the second organic layer 320 to provide electrons to the second organic layer 320. The second electrode layer 330 is made of the same material as the second transparent electrode layer 312.

The second light emitting member 300 emits the second organic layer 320 formed between the second electrode 310 and the second electrode layer 330 to emit white light to the second electrode layer 330 and the first light emitting layer 330. [ To the member 200 side. At this time, the second light emitting member 300 supplies a uniform current to the entire second transparent electrode layer 312 through the second auxiliary electrode pattern 314, so that the second light emitting member 300 is formed on the entire surface of the light emitting region corresponding to the second transparent electrode layer 312 And emits uniform white light.

The organic light emitting device 10 according to the first embodiment of the present invention further includes a first sealing member 400 and a second sealing member 500.

The first sealing member 400 is formed on the upper surface of the substrate 100 to seal the first light emitting member 200.

The first sealing member 400 according to the first embodiment is formed of a transparent material so as to cover the entire first light emitting member 200 formed on the upper surface of the substrate 100 as a protective film, Thereby protecting the first light emitting member 200 from external impact, oxygen, and / or moisture.

The first sealing member 400 according to the second embodiment is a seal cap made of glass and bonded to the upper surface of the substrate 100 by an adhesive (not shown) to seal the first light emitting member 200 Thereby protecting the first light emitting member 200 from external impact, oxygen, and / or moisture.

The first sealing member 400 may include a moisture absorbent (not shown) for absorbing and removing oxygen and / or moisture.

The second sealing member 500 is formed on the lower surface of the substrate 100 to seal the second light emitting member 300. The second sealing member 500 is formed of the same protective film or seal cap as the first sealing member 400 except that the second sealing member 500 is formed on the lower surface of the substrate 100. Therefore, ) In the following description.

The organic light emitting device 10 according to the first embodiment of the present invention supplies a uniform current to the entire transparent electrode layers 212 and 312 through the auxiliary electrode patterns 214 and 314, Uniform white light can be emitted.

The organic light emitting device 10 according to the first embodiment of the present invention emits white light to the upper and lower surfaces of the substrate 110 through the first light emitting member 200 and the second light emitting member 300 It is possible to compensate luminescence unevenness of each of the first light emitting member 200 and the second light emitting member 300 to each other to improve brightness, color coordinates, luminescence spectrum, and lifetime.

Meanwhile, in the organic light emitting device 10 according to the first embodiment of the present invention, the first electrode layer 230 or the second electrode layer 330 may be formed of an opaque material having high reflectivity. In this case, The organic light emitting device 10 according to the embodiment performs the cross-sectional emission. For example, when the second electrode layer 330 is formed of an opaque material to realize the sectional emission, the white light emitted from the first light emitting member 200 and the second light emitting member 300 is emitted to the upper surface of the substrate 100 So that luminance, color coordinates, emission spectrum, and lifetime can be further improved.

6 is an exploded perspective view schematically showing an organic light emitting device according to a second embodiment of the present invention, FIG. 7 is a cross-sectional view schematically showing a cross section of the BB line shown in FIG. 6, and FIG. 8 is a cross- 1 is a plan view schematically showing one electrode portion or a second electrode portion.

6 to 8, an organic light emitting device 20 according to a second embodiment of the present invention includes a substrate 100, a first light emitting member 600, and a second light emitting member 700, do.

The substrate 100 is made of a material such as glass or plastic, and is preferably made of a transparent material.

The first light emitting member 600 includes a first electrode unit 610, a first organic layer 220, and a first electrode layer 230.

The first electrode unit 610 is formed on the upper surface of the substrate 100 to supply current (or voltage) to the first organic layer 220. The first electrode unit 610 includes a first auxiliary electrode pattern 612, a first insulating layer 614, a plurality of first contact holes 616, and a first transparent electrode layer 618. do.

The first auxiliary electrode pattern 612 is formed on the upper surface of the substrate 100 and is electrically connected to the first transparent electrode layer 618 through a plurality of first contact holes 616. The first auxiliary electrode pattern 612 is partially connected to the first transparent electrode layer 618 through the plurality of first contact holes 616 so that a uniform current (or current) flows across the entire surface of the first transparent electrode layer 618 Voltage) is applied. To this end, the first auxiliary electrode pattern 612 includes a plurality of line patterns 612a and a common line 612b, as shown in Fig.

Each of the plurality of line patterns 612a is formed in at least one of a straight line, a curved line, and a zigzag in the substrate 100 so as to be partially connected to the first transparent electrode layer 212 through the plurality of first contact holes 616 do. At this time, each of the plurality of line patterns 612a is formed so as to overlap with a center portion of each defining region of the first transparent electrode layer 618 divided into a plurality of (for example, four equal parts) so as to have a constant area, The line resistances of the plurality of line patterns 612a are preferably set so that the current supplied to the entire first transparent electrode layer 618 becomes uniform.

The plurality of line patterns 612a may be formed of a transparent material or an opaque material, and may have a line width and a thickness of 1 nm or more. For example, the plurality of line patterns 612a may be formed of a material selected from the group consisting of Al, Ca, Cr, Cu, Au, Fe, Mo, ), At least one of platinum (Pt), silver (Ag), graphene, and zinc (Zn).

The common lines 612b are formed on the upper surface of the substrate 100 so as to be commonly connected to the outside of the plurality of line patterns 612a. At this time, the common line 612b is formed to correspond to the edge portion of the first transparent electrode layer 618. [

At least one terminal (not shown) to which a driving voltage for emitting light from the first light emitting member 600 is supplied is connected to at least one side of the common line 612b. Accordingly, the driving voltage supplied to the terminals is uniformly supplied over the entire surface of the first transparent electrode layer 618 through the common line 612b and the plurality of line patterns 612a.

The at least one terminal may be formed on at least one side of the first transparent electrode layer 618 corresponding to at least one side of the first auxiliary electrode pattern 612. In this case, Pattern 612 and the first transparent electrode layer 618 simultaneously.

The first insulating layer 614 is formed on the upper surface of the substrate 100 so as to cover the first auxiliary electrode pattern 612 and electrically insulates the first auxiliary electrode pattern 612 from the first transparent electrode layer 618. At this time, the first insulating layer 614 may be formed in regions other than the edge portions of the substrate 100.

The plurality of first contact holes 616 are formed to penetrate a predetermined region of the first insulating layer 614 overlapping each of the plurality of line patterns 612b to expose the inside of each of the plurality of line patterns 612b . At this time, each of the plurality of first contact holes 616 is formed so as to overlap the central portion of each defining region of the first transparent electrode layer 618.

The first transparent electrode layer 618 is formed on the entire surface of the first insulating layer 614 on which the plurality of first contact holes 616 are formed to form a plurality of line patterns 612b through the plurality of first contact holes 616, Respectively. The first transparent electrode layer 618 is formed on the first insulating layer 614 to define a light emitting region having a predetermined area. The first transparent electrode layer 618 may be made of a transparent material having high transmittance or a transparent electrode material. For example, the first transparent electrode layer 618 is ZnO, ZnO: B, ZnO: Al, ZnO: H, SnO _2, SnO _2: F, ITO, IZO, indium oxide, tin oxide, or graphene (Graphene) And the like.

The first transparent electrode layer 618 is partially connected to the first auxiliary electrode pattern 612 through each of the plurality of first contact holes 616 so that the first transparent electrode layer 618 extends from the first auxiliary electrode pattern 612, Is uniformly transmitted to the entire surface of the first transparent electrode layer 618. 8, since each of the plurality of first contact holes 616 is formed at the central portion of each defining region of the first transparent electrode layer 618, the current of the current supplied to the first transparent electrode layer 618 The pass (- -) becomes uniform over the entire surface of the first transparent electrode layer 618.

The first electrode unit 610 includes the first auxiliary electrode pattern 612, the first insulating layer 614, the plurality of first contact holes 616, and the first transparent electrode layer 618. [ As shown in Fig. 9, may have a stacked structure. At this time, the first auxiliary electrode patterns 612 of the plurality of first electrode units 610 are preferably formed in a staggered shape. As described above, when a plurality of the first electrode units 610 are stacked in a plurality, the number of the first transparent electrode layers 618 increases, so that the light extraction effect can be improved.

The first organic layer 220 is formed on the upper surface of the substrate 100 so as to cover the first electrode portion 610 and is formed by recombination of holes or electrons supplied from the first transparent electrode layer 618 and the first electrode layer 230 And emits light of a predetermined color. 4, the first organic layer 220 includes a hole injection layer 221, a hole transport layer 223, a plurality of light emitting layers 225, an electron transport layer 227, and an electron injection layer 229). Since the first organic layer 220 having such a structure is the same as the first embodiment of the present invention described above, the description thereof will be given instead of the above description, and the same reference numerals will be given.

Also, the first organic layer 220 may include at least one functional layer as in the first embodiment of the present invention.

The first electrode layer 230 is formed on the first organic layer 220 to provide electrons to the first organic layer 220. The first electrode layer 230 is made of the same transparent material as the first transparent electrode layer 618.

The first light emitting member 600 emits the first organic layer 220 formed between the first electrode layer 610 and the first electrode layer 230 to emit white light to the first electrode layer 230 and the second light emitting layer 230. [ To the member 700 side. At this time, the first light emitting member 600 supplies a uniform current to the entire first transparent electrode layer 618 through the first auxiliary electrode pattern 612, so that the first light emitting member 600 is formed on the entire surface of the light emitting region corresponding to the first transparent electrode layer 618 And emits uniform white light.

6 and 7, the second light emitting member 700 includes a second electrode portion 710, a second organic layer 320, and a second electrode layer 330.

The second electrode unit 710 is formed on the lower surface of the substrate 100 to supply current (or voltage) to the second organic layer 320. The second electrode unit 710 includes a second auxiliary electrode pattern 712, a second insulating layer 714, a plurality of second contact holes 716, and a second transparent electrode layer 718 do. The second electrode unit 710 having such a structure is formed in the same structure and size as the first electrode unit 610 of the first light emitting member 600 except that the second electrode unit 710 is formed on the lower surface of the substrate 100 Therefore, the description of the first electrode unit 610 will be omitted.

The second electrode unit 710 includes the second auxiliary electrode pattern 712, the second insulating layer 714, the plurality of second contact holes 716, and the second transparent electrode layer 718. [ Like the first electrode unit 610 shown in FIG. 9, may have a stacked structure. In this way, when a plurality of the second electrode units 710 are stacked in a plurality, the number of the second transparent electrode layers 718 increases, so that the light extraction effect can be improved.

The second organic layer 320 is formed on the lower surface of the substrate 100 so as to cover the second electrode portion 710 and is formed by recombination of holes and electrons supplied from the second transparent electrode layer 718 and the second electrode layer 330 And emits light of a predetermined color. 4, the second organic layer 320 includes a hole injection layer 221, a hole transport layer 223, a plurality of light emitting layers 225, an electron transport layer 227, and an electron injection layer 229). Since the second organic layer 320 having such a structure has the same structure as the first organic layer 220 according to the first embodiment of the present invention, the description thereof will be given instead of the above description, and the same reference numerals .

In addition, the second organic layer 320 may further include at least one functional layer as described above.

The second electrode layer 330 is formed on the second organic layer 320 to provide electrons to the second organic layer 320. The second electrode layer 330 is made of the same material as the second transparent electrode layer 718.

The second light emitting member 700 emits the second organic layer 320 formed between the second electrode unit 710 and the second electrode layer 330 to emit white light to the second electrode layer 330 and the first To the member 600 side. The second light emitting member 700 supplies a uniform current to the entire second transparent electrode layer 718 through the second auxiliary electrode pattern 712 so that the second light emitting member 700 is formed on the entire surface of the light emitting region corresponding to the second transparent electrode layer 718 And emits uniform white light.

The organic light emitting device 20 according to the second embodiment of the present invention further includes a first sealing member 400 and a second sealing member 500.

The first sealing member 400 is formed of a transparent material on the upper surface of the substrate 100 so as to seal the first light emitting member 600. The first sealing member 400 may be formed of a protective film or a seal cap as in the first embodiment of the present invention Therefore, the description of the first sealing member 400 will be omitted.

The second sealing member 500 is formed of a transparent material on the lower surface of the substrate 100 so as to seal the second light emitting member 700. The second sealing member 500 may be formed of a protective film or a seal cap as in the first embodiment of the present invention Therefore, the description of the second sealing member 500 will be given instead.

The organic light emitting device 20 according to the second embodiment of the present invention provides the same effect as the organic light emitting device 10 according to the first embodiment of the present invention described above.

Meanwhile, in the organic light emitting device 20 according to the second embodiment of the present invention, the first electrode layer 230 or the second electrode layer 330 may be formed of an opaque material having high reflectivity. In this case, The organic light emitting device 20 according to the embodiment performs the cross-sectional emission. For example, when the second electrode layer 330 is formed of an opaque material to realize sectional emission, white light emitted from each of the first light emitting member 600 and the second light emitting member 700 is emitted toward the upper surface of the substrate 100 So that luminance, color coordinates, emission spectrum, and lifetime can be further improved.

10 is a plan view schematically illustrating another embodiment of the first auxiliary electrode pattern in the organic light emitting device according to the second embodiment of the present invention.

10, the first auxiliary electrode pattern 612 includes a first line pattern 612a1, a plurality of second line patterns 612b1, and a plurality of second line patterns 612b in order to supply a uniform current across the entire surface of the first transparent electrode layer 618. [ A pattern 612a2, and a common line 612b.

The first line pattern 612a1 is formed in a line shape from the upper and lower center portions of the common line 612b to the region corresponding to the center portion of the first transparent electrode layer 618. [ The plurality of first contact holes 616 are formed inside the first line pattern 612a1 so that the first line pattern 612a1 is electrically connected to the first transparent electrode layer 617a through the plurality of first contact holes 616 618, respectively.

The plurality of second line patterns 612a2 are formed in a zigzag form from the left and right sides of the common line 612b to the regions corresponding to the center portions of the positive regions of the first transparent electrode layer 618. [ The plurality of first contact holes 616 are formed inside each of the plurality of second line patterns 612a2 so that each of the plurality of second line patterns 612a2 includes a plurality of first contact holes 616 And is electrically connected to the center portion of each positive region of the first transparent electrode layer 618 through the first transparent electrode layer 618. In this case, each of the plurality of second line patterns 612a2 may be formed in a zigzag shape so as to have the same line resistance as that of the first line patterns 612a1, but the present invention is not limited thereto and a plurality of second line patterns 612a2, The line resistances of the first line patterns 612a1 are preferably set so that the current supplied to the entire first transparent electrode layer 618 becomes uniform.

The common line 612b is commonly connected to the outside of each of the plurality of first line patterns 612a1 and the second line pattern 612a2. A terminal is connected to at least one side of the common line 612b to supply a current from the outside.

The first auxiliary electrode pattern 612 of this embodiment can supply a uniform current to the entire first transparent electrode layer 618 through the plurality of first line patterns 612a1 and the second line pattern 612a2 .

Although not shown, the second auxiliary electrode pattern 712 is formed in the same manner as the first auxiliary electrode pattern 612 described above.

11 is a plan view schematically illustrating another embodiment of the first auxiliary electrode pattern in the organic light emitting device according to the second embodiment of the present invention.

11, the first auxiliary electrode pattern 612 includes a plurality of first line patterns 612a3, a plurality of second auxiliary patterns 612b1, and a plurality of second auxiliary patterns 612b in order to supply a uniform current across the entire surface of the first transparent electrode layer 618. [ 2 line pattern 612a4, and a common line 612b.

Each of the plurality of first line patterns 612a3 corresponds to a center portion of each of the remaining inner defining regions except the edge defining regions of the first transparent electrode layer 618 from the upper and lower central portions of the common line 612b To the region where the gate electrode is formed. The plurality of first contact holes 616 are formed inside the plurality of first line patterns 612a3 so that the first line patterns 612a3 are electrically connected to the first transparent electrodes 611a through the plurality of first contact holes 616. [ And is electrically connected to the central portion of each of the inner defining regions of the electrode layer 618. [

The plurality of second line patterns 612a4 are formed in a line shape from the left and right sides and the upper and lower sides of the common line 612b to the regions corresponding to the center portions of the edge defining regions of the first transparent electrode layer 618. [ The plurality of first contact holes 616 are formed inside each of the plurality of second line patterns 612a4 so that each of the plurality of second line patterns 612a4 includes a plurality of first contact holes 616 And is electrically connected to the center of each of the edge defining regions of the first transparent electrode layer 618.

On the other hand, it is preferable that the plurality of the second line patterns 612a4 and the first line patterns 612a3 are formed to have the same line resistance. To this end, each of the plurality of second line patterns 612a4 may be formed to have a line width narrower than the plurality of first line patterns 612a3. Alternatively, when the line widths of the plurality of the second line patterns 612a4 and the plurality of the first line patterns 612a3 are the same, each of the plurality of the second line patterns 612a4 includes a plurality May be formed in a zigzag shape so as to have the same length as that of the first line pattern 612a3.

The plurality of second line patterns 612a4 and the first line patterns 612a3 are preferably formed to have the same line resistance. However, the present invention is not limited thereto, and a plurality of second line patterns 612a4 and first The line resistances of the respective line patterns 612a3 are preferably set so that the current supplied to the entire first transparent electrode layer 618 becomes uniform.

The common line 612b is commonly connected to the outside of each of the plurality of first line patterns 612a3 and the plurality of second line patterns 612a4. A terminal is connected to at least one side of the common line 612b to supply a current from the outside.

The first auxiliary electrode pattern 612 of the other embodiment supplies a uniform current to the entire first transparent electrode layer 618 through the plurality of first line patterns 612a3 and the plurality of second line patterns 612a4 .

Although not shown, the second auxiliary electrode pattern 712 is formed in the same manner as the first auxiliary electrode pattern 612 described above.

13 is an exploded perspective view schematically showing an organic light emitting device according to a third embodiment of the present invention.

Referring to FIG. 13, an organic light emitting device 30 according to a third embodiment of the present invention includes a substrate 100, a first light emitting member 200, a second light emitting member 700, a first sealing member 400, , And a second sealing member (500).

The substrate 100 is made of a material such as glass or plastic, and is preferably made of a transparent material.

Since the first light emitting member 200 has the same configuration as the first light emitting member of the organic light emitting device 10 according to the first embodiment of the present invention described above, a detailed description thereof will be substituted for the above description.

The second light emitting member 700 has the same configuration as the second light emitting member 20 of the organic light emitting device 20 according to the second embodiment of the present invention, and thus the detailed description thereof will be replaced with the above description.

The first sealing member 400 is formed of a transparent material on the upper surface of the substrate 100 to seal the first light emitting member 200 and is formed of a protective film or a seal cap in the same manner as in the first embodiment of the present invention .

The second sealing member 500 is formed of a transparent material on the lower surface of the substrate 100 so as to seal the second light emitting member 700. The second sealing member 500 may be formed of a protective film or a seal cap as in the second embodiment of the present invention Therefore, the description of the second sealing member 500 will be given instead.

The organic light emitting device 30 according to the third embodiment of the present invention provides the same effect as the organic light emitting devices 10 and 20 according to the first or second embodiment of the present invention.

14 is an exploded perspective view schematically showing an organic light emitting device according to a fourth embodiment of the present invention.

14, the organic light emitting device 40 according to the fourth embodiment of the present invention includes a substrate 100, a first light emitting member 600, a second light emitting member 300, a first sealing member 400, , And a second sealing member (500).

The substrate 100 is made of a material such as glass or plastic, and is preferably made of a transparent material.

The first light emitting member 600 has the same configuration as that of the first light emitting member of the organic light emitting device 20 according to the second embodiment of the present invention, and thus a detailed description thereof will be omitted.

The second light emitting member 300 has the same configuration as the second light emitting member of the organic light emitting device 10 according to the first embodiment of the present invention, and thus the detailed description thereof will be substituted with the above description.

The first sealing member 400 is formed of a transparent material on the upper surface of the substrate 100 to seal the first light emitting member 600 and is formed of a protective film or a seal cap in the same manner as in the first embodiment of the present invention .

The second sealing member 500 is formed of a transparent material on the lower surface of the substrate 100 so as to seal the second light emitting member 300. The second sealing member 500 may be formed of a protective film or a seal cap as in the second embodiment of the present invention Therefore, the description of the second sealing member 500 will be given instead.

The organic light emitting device 40 according to the fourth embodiment of the present invention provides the same effect as the organic light emitting devices 10 and 20 according to the first or second embodiment of the present invention.

FIG. 15 is an exploded perspective view schematically showing an organic light emitting device according to a fifth embodiment of the present invention, and FIG. 16 is a cross-sectional view taken along the line C-C shown in FIG.

15 and 16, an organic light emitting device 50 according to a fifth embodiment of the present invention includes a substrate 100, a first light emitting member 200, a second light emitting member 800, (400), and a second sealing member (500).

The substrate 100 is made of a material such as glass or plastic, and is preferably made of a transparent material.

The first light emitting member 200 is formed on the upper surface of the substrate 100 so as to have a relatively larger area than the second light emitting member 800. Since the first light emitting member 200 has the same configuration as the first light emitting member of the organic light emitting device 10 according to the first embodiment of the present invention described above, do.

Meanwhile, the first light emitting member 200 may be configured in the same manner as the first light emitting member 600 of the organic light emitting device 20 according to the second embodiment of the present invention described above.

The second light emitting member 800 is formed on the lower surface of the substrate 100 so as to have a relatively small area as compared with the first light emitting member 200. That is, the light emitting region of the second light emitting member 800 is superimposed on the central region of the first light emitting member 200.

The second light emitting member 800 includes a second electrode unit 310, a second organic layer 320, and a second electrode layer 830. The second light emitting member 800 having such a configuration has the same configuration as the second light emitting member of the organic light emitting device 10 according to the first embodiment of the present invention except for the second electrode layer 830 A detailed description of the same configuration will be given instead of the above description.

The second electrode layer 830 is formed on the second organic layer 320 to provide electrons to the second organic layer 320. The second electrode layer 830 is made of an opaque material having high reflectivity for reflecting the white light emitted from the second organic layer 320 to the upper surface of the substrate 100. For example, the second electrode layer 830 may be formed of a material having a low work function and a low resistance such as aluminum (Al), calcium (Ca), chromium (Cr), copper (Cu) ), Molybdenum (Mo), nickel (Ni), platinum (Pt), silver (Ag) or zinc (Zn), lithium fluoride, lithium oxide, And may be made of a material such as calcium oxide, strontium oxide, cesium oxide, or magnesium fluoride.

The second light emitting member 800 generates the white light by emitting the second organic layer 320 formed between the second electrode unit 310 and the second electrode layer 830 and the second electrode layer 830 And emits white light generated through the first light emitting member 200 toward the first light emitting member 200 to compensate for the light emission unevenness of the first light emitting member 200. At this time, the second light emitting member 800 supplies a uniform current to the entire second transparent electrode layer 312 through the second auxiliary electrode pattern 314 so that the light emitting region corresponding to the second transparent electrode layer 312 And emits uniform white light.

The first sealing member 400 is formed of a transparent material on the upper surface of the substrate 100 to seal the first light emitting member 200 and is formed of a protective film or a seal cap in the same manner as in the first embodiment of the present invention .

The second sealing member 500 is formed of a transparent material on the lower surface of the substrate 100 so as to seal the second light emitting member 800. The second sealing member 500 may be formed of a protective film or a seal cap as in the first embodiment of the present invention Therefore, the description of the second sealing member 500 will be given instead.

The organic light emitting device 50 according to the fifth embodiment of the present invention includes the first light emitting member 200 formed on the upper surface of the substrate 100 and the light emitting member 200 corresponding to the central region of the first light emitting member 200 A second light emitting member 800 having a region is formed on the lower surface of the substrate 100 to emit white light emitted from the second light emitting member 800 toward the upper surface of the substrate 100.

Therefore, the organic light emitting device 50 according to the fifth embodiment of the present invention improves the brightness and compensates for the light emission unevenness of the first light emitting member 200 through the white light emitted from the second light emitting member 800 Thereby further improving luminance, color coordinates, emission spectrum, and lifetime.

17 is an exploded perspective view schematically showing an organic light emitting device according to a sixth embodiment of the present invention, and Fig. 18 is a cross-sectional view showing a cross section taken along the line D-D shown in Fig.

17 and 18, an organic light emitting device 60 according to a sixth embodiment of the present invention includes a substrate 100, a first light emitting member 600, a second light emitting member 900, (400), and a second sealing member (500).

The substrate 100 is made of a material such as glass or plastic, and is preferably made of a transparent material.

The first light emitting member 600 is formed on the upper surface of the substrate 100 so as to have a relatively larger area than the second light emitting member 900. Since the first light emitting member 600 has the same configuration as the first light emitting member of the organic light emitting device 20 according to the second embodiment of the present invention, do.

The first light emitting member 600 may be the same as the first light emitting member 200 of the organic light emitting device 10 according to the first embodiment of the present invention.

The second light emitting member 900 is formed on the bottom surface of the substrate 100 so as to have a relatively small area as compared with the first light emitting member 600. That is, the light emitting region of the second light emitting member 900 is superimposed on the central region of the first light emitting member 600.

The second light emitting member 900 includes a second electrode unit 710, a second organic layer 320, and a second electrode layer 930. The second light emitting member 900 having such a configuration has the same configuration as the second light emitting member of the organic light emitting device 20 according to the second embodiment of the present invention except for the second electrode layer 930 A detailed description of the same configuration will be given instead of the above description.

The second electrode layer 930 is formed on the second organic layer 320 to provide electrons to the second organic layer 320. The second electrode layer 930 is made of an opaque material having a high reflectance for reflecting the white light emitted from the second organic layer 320 to the top surface of the substrate 100. For example, the second electrode layer 930 may be formed of a material having a low work function and a low resistance such as aluminum (Al), calcium (Ca), chromium (Cr), copper (Cu) ), Molybdenum (Mo), nickel (Ni), platinum (Pt), silver (Ag) or zinc (Zn), lithium fluoride, lithium oxide, calcium oxide, strontium oxide, , Or magnesium fluoride, or the like.

The second light emitting member 900 generates the white light by emitting the second organic layer 320 formed between the second electrode unit 710 and the second electrode layer 930 and the second electrode layer 930 And emits the white light generated through the first light emitting member 600 toward the first light emitting member 600 to compensate for the light emission unevenness of the first light emitting member 600. At this time, the second light emitting member 900 supplies a uniform current to the entire second transparent electrode layer 718 through the second auxiliary electrode pattern 712, so that the second light emitting member 900 is formed on the entire surface of the light emitting region corresponding to the second transparent electrode layer 718 And emits uniform white light.

The first sealing member 400 is formed of a transparent material on the upper surface of the substrate 100 to seal the first light emitting member 600 and is formed of a protective film or a seal cap in the same manner as in the first embodiment of the present invention .

The second sealing member 500 is formed of a transparent material on the lower surface of the substrate 100 to seal the second light emitting member 900. The second sealing member 500 may be formed of a protective film or a seal cap as in the first embodiment of the present invention Therefore, the description of the second sealing member 500 will be given instead.

The organic light emitting device 60 according to the sixth embodiment of the present invention includes the first light emitting member 600 formed on the upper surface of the substrate 100 and the light emitting member 600 corresponding to the central region of the first light emitting member 600 A second light emitting member 900 having a region is formed on the lower surface of the substrate 100 to emit white light emitted from the second light emitting member 900 toward the upper surface of the substrate 100.

Accordingly, the organic light emitting device 60 according to the sixth embodiment of the present invention improves the brightness and compensates for the light emission unevenness of the first light emitting member 600 through the white light emitted from the second light emitting member 900 Thereby further improving luminance, color coordinates, emission spectrum, and lifetime.

The first insulating layers 216 and 614 and the second insulating layers 316 and 316 included in the organic light emitting devices 10, 20, 30, 40, 50, and 60 according to the first to sixth embodiments of the present invention, 714 may be configured to include dispersed dispersed particles 1000, as shown in Fig.

The dispersed particles 1000 improve the insulating effect of the insulating layers 216, 316, 614, and 714, and scatter or reflect the incident light to improve the uniformity of light emission and the luminous efficiency. To this end, the dispersed particles 1000 may be made of a ceramic material.

Each of the organic light emitting devices 10, 20, 30, 40, 50, and 60 according to the first to sixth embodiments of the present invention may be formed as a large area, have.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

10: organic light emitting device 100: substrate
200: first light emitting member 210: first electrode part
212: first transparent electrode layer 214: first auxiliary electrode pattern
216: first insulating layer 220: first organic layer
230: first electrode layer 300: second light emitting member
310: second electrode part 312: second transparent electrode layer
314: second auxiliary electrode pattern 316: second insulating layer
320: second organic layer 330: second electrode layer
400: first sealing member 500: second sealing member

Claims (26)

delete Board;
A first electrode portion formed on a first surface of the substrate to include a first transparent electrode layer and a first auxiliary electrode pattern partially connected to the first transparent electrode layer;
A first organic layer formed on the first electrode portion to include a plurality of light emitting layers;
A first electrode layer formed on the first organic layer;
A second electrode portion formed on a second surface of the substrate to include a second transparent electrode layer and a second auxiliary electrode pattern partially connected to the second transparent electrode layer;
A second organic layer formed on the second electrode portion to include a plurality of second light emitting layers; And
And a second electrode layer formed on the second organic layer,
Wherein each of the first and second auxiliary electrode patterns comprises:
A plurality of line patterns formed on the substrate so as to be partially connected to the transparent electrode layer; And
And a common line formed on the substrate so as to be commonly connected to the plurality of line patterns. 3. The method of claim 2,
Each of the plurality of line patterns may be the same or different And a line resistance. The method of claim 3,
Wherein each of the plurality of line patterns is electrically connected to a central portion of each of the positive regions of the transparent electrode layer defined by a constant area. Board;
A first electrode portion formed on a first surface of the substrate to include a first transparent electrode layer and a first auxiliary electrode pattern partially connected to the first transparent electrode layer;
A first organic layer formed on the first electrode portion to include a plurality of light emitting layers;
A first electrode layer formed on the first organic layer;
A second electrode portion formed on a second surface of the substrate to include a second transparent electrode layer and a second auxiliary electrode pattern partially connected to the second transparent electrode layer;
A second organic layer formed on the second electrode portion to include a plurality of second light emitting layers; And
And a second electrode layer formed on the second organic layer,
Wherein the first electrode unit comprises:
The first transparent electrode layer formed on the first surface of the substrate;
The first auxiliary electrode pattern partially formed on the first transparent electrode layer; And
And a first insulating layer formed on the first transparent electrode layer so as to have the same shape as the first auxiliary electrode pattern and electrically insulating the first auxiliary electrode pattern and the first organic layer from each other. Device. 6. The method of claim 5,
Wherein the second electrode unit comprises:
The second transparent electrode layer formed on the second surface of the substrate;
The second auxiliary electrode pattern partially formed on the second transparent electrode layer; And
And a second insulating layer formed on the second transparent electrode layer so as to have the same shape as the second auxiliary electrode pattern and electrically insulating the second auxiliary electrode pattern from the second organic layer. Organic light emitting device. 6. The method of claim 5,
Wherein the second electrode unit comprises:
The second auxiliary electrode pattern partially formed on the second surface of the substrate;
A second insulating layer formed on a second surface of the substrate to cover the second auxiliary electrode pattern;
A plurality of second contact holes formed in the second insulating layer overlapping the second auxiliary electrode pattern and exposing a part of the second auxiliary electrode pattern; And
And the second transparent electrode layer formed on the second insulating layer on which the plurality of second contact holes are formed and electrically connected to the second auxiliary electrode pattern through the plurality of second contact holes . Board;
A first electrode portion formed on a first surface of the substrate to include a first transparent electrode layer and a first auxiliary electrode pattern partially connected to the first transparent electrode layer;
A first organic layer formed on the first electrode portion to include a plurality of light emitting layers;
A first electrode layer formed on the first organic layer;
A second electrode portion formed on a second surface of the substrate to include a second transparent electrode layer and a second auxiliary electrode pattern partially connected to the second transparent electrode layer;
A second organic layer formed on the second electrode portion to include a plurality of second light emitting layers; And
And a second electrode layer formed on the second organic layer,
Wherein the first electrode unit comprises:
The first auxiliary electrode pattern partially formed on the first surface of the substrate;
A first insulating layer formed on a first surface of the substrate to cover the first auxiliary electrode pattern;
A plurality of first contact holes formed in the first insulating layer overlapping the first auxiliary electrode pattern and exposing a part of the first auxiliary electrode pattern; And
And the first transparent electrode layer formed on the first insulating layer on which the plurality of first contact holes are formed and electrically connected to the first auxiliary electrode pattern through the plurality of first contact holes Organic light emitting device. 9. The method of claim 8,
Wherein the second electrode unit comprises:
The second transparent electrode layer formed on the second surface of the substrate;
The second auxiliary electrode pattern partially formed on the second transparent electrode layer; And
And a second insulating layer formed on the second transparent electrode layer so as to have the same shape as the second auxiliary electrode pattern and electrically insulating the second auxiliary electrode pattern from the second organic layer. Organic light emitting device. 9. The method of claim 8,
Wherein the second electrode unit comprises:
The second auxiliary electrode pattern partially formed on the second surface of the substrate;
A second insulating layer formed on a second surface of the substrate to cover the second auxiliary electrode pattern;
A plurality of second contact holes formed in the second insulating layer overlapping the second auxiliary electrode pattern and exposing a part of the second auxiliary electrode pattern; And
And the second transparent electrode layer formed on the second insulating layer on which the plurality of second contact holes are formed and electrically connected to the second auxiliary electrode pattern through the plurality of second contact holes . Board;
A first electrode portion formed on a first surface of the substrate to include a first transparent electrode layer and a first auxiliary electrode pattern partially connected to the first transparent electrode layer;
A first organic layer formed on the first electrode portion to include a plurality of light emitting layers;
A first electrode layer formed on the first organic layer;
A second electrode portion formed on a second surface of the substrate to include a second transparent electrode layer and a second auxiliary electrode pattern partially connected to the second transparent electrode layer;
A second organic layer formed on the second electrode portion to include a plurality of second light emitting layers; And
And a second electrode layer formed on the second organic layer,
Wherein the first electrode part, the first organic layer, and the first electrode layer constitute a first light emitting member, the second electrode part, the second organic layer and the second electrode layer constitute a second light emitting member,
Wherein the second light emitting member is formed to have the same area as the first light emitting member or have a smaller area than the first light emitting member. 12. The method of claim 11,
The first electrode layer may be formed of a transparent material,
Wherein the second electrode layer is formed of an opaque reflective material and reflects light emitted from the second light emitting member toward the first surface of the substrate. 11. The method according to any one of claims 2 to 10,
Wherein the first electrode part, the first organic layer, and the first electrode layer constitute a first light emitting member, the second electrode part, the second organic layer and the second electrode layer constitute a second light emitting member,
A first sealing member formed on a first surface of the substrate to seal the first light emitting member; And
And a second sealing member formed on a second surface of the substrate to seal the second light emitting member. A lighting device comprising the organic light-emitting device according to any one of claims 2 to 10. 15. The method of claim 14,
Wherein the first electrode part, the first organic layer, and the first electrode layer constitute a first light emitting member, the second electrode part, the second organic layer and the second electrode layer constitute a second light emitting member,
Wherein the second light emitting member is formed to have the same area as the first light emitting member or have a relatively smaller area than the first light emitting member. 16. The method of claim 15,
The first electrode layer may be formed of a transparent material,
Wherein the second electrode layer is formed of an opaque reflective material and reflects light emitted from the second light emitting member toward the first surface of the substrate. delete delete delete delete delete delete delete delete delete delete

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