KR20020044538A - Plasma Switched Organic Photoluminescent Display and Method of Making the Same - Google Patents

Abstract

PURPOSE: A plasma switch type organic luminescence display is provided to avoid deterioration of an organic emitting layer due to a voltage applied when plasma is generated, by minimizing overlapped area between the organic emitting layer and an address line. CONSTITUTION: A plasma switch type organic luminescence display comprises a first plate(26) and a second plate(32). The first plate(26) includes a first transparent plate(21), many bus lines(22), a dielectric film(23), many vertical barrier ribs(24) and a bottom protection film(25). The second plate(32) includes a second transparent plate(27), many organic emitting layers(28), a first top protection film(29), many address lines(30) and a second top protection film(31). The bus lines(22) are formed as stripes. The address lines(30) are formed as stripes between the barrier ribs(24). The bus lines(22) and the address lines(30) select a pixel to generate plasma. The organic emitting layers(28) are formed as stripes orthogonal to the address lines(30). Ultraviolet ray from the plasma is collided to the organic emitting layers(28) to emit visible ray.

Description

Plasma Switched Organic Photoluminescent Display and Method of Making the Same

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma switch type organic light emitting display device and a method of manufacturing the same. In particular, a plasma for preventing degradation of an organic light emitting layer by providing an organic light emitting layer orthogonal to an address line in a discharge space between a bus line and an address line. A switch type organic light emitting display device and a method of manufacturing the same.

With the recent development of information and communication technology, consumer demands for meeting the information society have been diversified, thereby increasing the demand for electronic display devices. In order to meet the needs of various consumers, electronic display elements need to have characteristics such as high definition, large size, low price, high performance, thinness, and miniaturization. For this purpose, in addition to the existing cathode ray tube (CRT) New flat panel display (FPD) devices are being developed.

One such flat panel display is an electroluminescent display. ELDs are classified into organic electroluminescent displays and inorganic electroluminescent displays according to the type of material used as the light emitting layer.

An inorganic electroluminescent display device emits light by collision of electrons accelerated by a high electric field, and according to the thickness and driving method of the thin film, an AC thin film electroluminescence display device, an AC thick film electroluminescence display device, and a DC thick film electroluminescence And display elements.

The organic light emitting display device is an element that emits light by the flow of electric current, and is classified into a low molecular organic electroluminescent display device and a high molecular organic electroluminescent display device according to the organic material of the light emitting layer.

1 is a schematic diagram of a conventional organic electroluminescent display device. Referring to FIG. 1, the organic light emitting display device includes a transparent anode layer 12, a hole injection layer 13, and a hole transport layer on the transparent substrate 11. 14, an organic emitting layer 15, an electron transport layer 17, and a cathode layer 18 made of a metal are sequentially stacked, and the current flows. As a result, the organic light emitting layer 15 emits light. The hole injection layer 13, the hole transport layer 14, and the electron transport layer 17 have an auxiliary function of increasing the luminous efficiency of the organic light emitting display device.

The conventional organic electroluminescent display element described above is driven by electric current, so that deterioration of the organic light emitting layer 15 due to current driving occurs. In addition, an additional auxiliary layer, for example, a hole injection layer 13, a hole transport layer 14, an electron transport layer 17, or the like is required to increase the luminous efficiency, thus making the manufacturing process complicated.

The organic EL device of the related art has the following problems.

Since the organic electroluminescent element is driven by a current, deterioration of the organic light emitting layer due to current driving occurs. In addition, an additional auxiliary layer, for example, a hole injection layer, a hole transporting layer, and an electron transporting layer, is required to increase the luminous efficiency, thus making the manufacturing process complicated.

The present invention is to solve the problem of the organic light emitting display device of the prior art, and not to emit light of the organic light emitting material with a current, but to emit light using ultraviolet rays emitted from the plasma, the organic light emitting layer and the address line in the discharge space Are arranged so as to be orthogonal to each other without being arranged in parallel, thereby minimizing the overlapping area between the organic light emitting layer and the address line, thereby preventing the organic light emitting layer from deteriorating by the voltage applied when the plasma is generated. And its manufacturing method.

1 is a schematic view of an organic light emitting display device of the prior art

2 is a schematic view of a plasma switch type organic light emitting display device according to the present invention;

3 is a perspective view of a plasma switch type organic light emitting display device according to a first embodiment of the present invention;

4 is a plan view of a first substrate of a plasma switch type organic light emitting display device according to a first exemplary embodiment of the present invention.

5 is a plan view of a second substrate portion of a plasma switch type organic light emitting display device according to a first exemplary embodiment of the present invention.

FIG. 6 is a cross-sectional view of the first substrate of the plasma switch type organic light emitting display device according to the first exemplary embodiment of the present invention, taken along the line AA ′ of FIG. 4.

FIG. 7 is a cross-sectional view of the first substrate of the plasma switch type organic light emitting display device according to the first exemplary embodiment of the present invention, taken along the line BB ′ of FIG. 4.

FIG. 8 is a cross-sectional view of the second substrate of the plasma switch type organic light emitting display device according to the first exemplary embodiment of the present invention, taken along the line AA ′ of FIG. 5.

FIG. 9 is a cross-sectional view of the second substrate of the plasma switch type organic light emitting display device according to the first exemplary embodiment of the present invention, taken along the line BB ′ of FIG. 5.

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

21: first transparent substrate 22: bus line

23 dielectric layer 24 partition wall

25 lower protective film 26 first substrate portion

27: second transparent substrate 28: organic light emitting layer

29: first upper protective film 30: address line

31: second upper portion protective film 32: second substrate portion

33: first screen mask 34: third screen mask

This object is achieved by the following configuration.

(1) A plasma switch type organic light emitting display device according to the present invention comprises: a first substrate portion having a plurality of first electrodes arranged in a stripe shape and a dielectric film on the plurality of first electrodes; A second substrate portion having a plurality of second electrodes orthogonal to the plurality of first electrodes and arranged in a stripe shape; A plurality of discharge spaces formed in a region where the plurality of first electrodes and the plurality of second electrodes are orthogonal between the first substrate portion and the second substrate portion; And a plurality of organic light emitting layers arranged orthogonally to the plurality of second electrodes on the second substrate portion in the plurality of discharge spaces.

(2) The plasma switch type organic light emitting display device as described in (1), wherein the plurality of first electrodes are formed in pairs in which two electrodes are adjacent to each other.

(3) The plasma switch type organic photoluminescence display device as described in (1) or (2), wherein the plurality of first electrodes comprises a double layer made of silver, chromium, copper, nickel, gold, chromium / copper, It is characterized by using one of the triple layer consisting of chromium / copper / chromium.

(4) The plasma switch type organic photoluminescence display device according to any one of (1) to (3), wherein the dielectric film is one or two of white dielectric films made of aluminum oxide, lead oxide, titanium oxide, and zirconium oxide. It is characterized by using the above composite layer.

(5) The plasma switch type organic light emitting display device according to any one of (1) to (4), further comprising a protective film on the dielectric film, wherein MgO is used as the protective film.

(6) The plasma switch type organic light emitting display device of any one of (1) to (5), wherein the plurality of discharge spaces are arranged orthogonal to the plurality of first electrodes on the first substrate portion. Characterized by a plurality of vertical partition walls.

(7) The plasma switch type organic light emitting display element as described in (6) above, wherein outermost walls higher than the plurality of partition walls are provided while turning the edge of the first substrate portion.

(8) The plasma switch type organic light emitting display element as described in (6) or (7), wherein the plurality of vertical barrier ribs are formed of a white material in a lower layer and a black material in an upper layer.

(9) The plasma switch type organic photoluminescence display device according to any one of (6) to (8), wherein the plurality of vertical barrier ribs are one of PbO, B ₂ O ₃ , SiO ₂ , and Al ₂ O ₃ or It is characterized by using two or more composite layers.

(10) The plasma switch type organic light emitting display device of any one of (1) to (9), wherein the material of the plurality of organic photoluminescent layers is a low molecular photoluminescent material and 4,4'-bis (2, 2'-diphenylethen-4-yl) -diphenyl, tris (8-hydroxyquinoline) aluminum, bis (8-hydroxyquinoline) magnesium, coumarin 6, and rubrene are selected and used. It is characterized by using polyphenylenevinylene as the polymer photoluminescent material.

(11) The plasma switch type organic light emitting display device according to any one of (1) to (10), wherein the plurality of organic light emitting layers and the plurality of second electrodes are disposed on the plurality of second electrodes. A first protective film and a second protective film are formed, respectively.

(12) The plasma switch type organic light emitting display device as described in (11), wherein the first protective film and the second protective film use MgF ₂ or SiO ₂ .

(13) The plasma switch type organic light emitting display device according to any one of (1) to (12), wherein the plurality of second electrodes are selected from nickel, silver, tungsten, and aluminum. It features.

(14) A plasma switch type organic light emitting display device according to the present invention comprises: a plurality of bus lines stacked in a stripe shape on a first transparent substrate; A dielectric film on the first transparent substrate including the plurality of bus lines; A first substrate part including a plurality of barrier ribs orthogonal to the plurality of bus lines and stacked on the dielectric layer; A plurality of organic light emitting layers arranged on a second transparent substrate in a one-to-one manner and facing each other with a plurality of bus lines; A second substrate portion disposed between the plurality of vertical barrier ribs and including a plurality of address lines orthogonal to the plurality of organic light emitting layers and arranged in a stripe shape; And a plurality of discharge spaces divided by the plurality of vertical barrier ribs between the plurality of bus lines of the first substrate portion and the plurality of address lines of the second substrate portion.

(15) A method of manufacturing a plasma switch type organic light emitting display device according to the present invention includes a plurality of first electrodes arranged in a stripe shape and a dielectric film on the plurality of first electrodes and orthogonal to the plurality of first electrodes. Preparing a first substrate part having a plurality of vertical partition walls; A plurality of organic light emitting layers having one-to-one contact with the plurality of first electrodes and perpendicular to the plurality of vertical partitions and a plurality of organic light emitting layers perpendicular to the plurality of organic light emitting layers and positioned between the plurality of vertical partitions. Preparing a second substrate portion having a plurality of second electrodes; Encapsulating the first substrate portion and the second substrate portion using an encapsulant such that the plurality of second electrodes of the second substrate portion are positioned between the plurality of vertical partitions of the first substrate portion. It is done.

(16) A method of manufacturing a plasma switch type organic light emitting display element as in (15), wherein plasma is formed in a space between the plurality of partition walls such as He, Ne, Ar, Kr, Xe, Rn, and Hg. Characterized in that the gas alone or mixed filling.

(17) In the method of manufacturing a plasma switch type organic light emitting display device as in (15) or (16), preparing the first substrate portion is used as the plurality of first electrodes on a transparent substrate. Forming a plurality of bus lines; Forming a dielectric film on the transparent substrate including the plurality of bus lines; Forming a protective film on the dielectric film; And forming the plurality of partition walls on the passivation layer.

(18) The method of manufacturing a plasma switch type organic light emitting display device as described in (15) or (16), wherein preparing the first substrate portion is used as the plurality of first electrodes on a transparent substrate. Forming a plurality of bus lines; Forming a dielectric film on the transparent substrate including the plurality of bus lines; Forming the plurality of partition walls orthogonal to the plurality of bus lines on the dielectric layer; And forming a protective film on the dielectric layer.

(19) The method of manufacturing a plasma switch type organic light emitting display device as in any one of (15) to (18), wherein the preparing of the second substrate portion comprises the plurality of first on a transparent substrate. Forming the plurality of organic photoluminescent layers facing one-to-one with an electrode; Forming a first passivation layer on the transparent substrate including the plurality of organic light emitting layers; Forming a plurality of address lines on the first passivation layer to be used as the plurality of second electrodes orthogonal to the plurality of organic light emitting layers and positioned between the plurality of partition walls; And forming a second passivation layer on the first passivation layer including the plurality of address lines.

(20) A method of manufacturing a plasma switched organic light emitting display device as in any one of (15) to (19), wherein the sealing portion between the first substrate portion and the second substrate portion is epoxy Bonding using a resin and UV-curing (UV curing) using a mercury lamp is characterized in that the sealing.

Hereinafter, a plasma switch type organic light emitting display device and a method of manufacturing the same according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic view of a plasma switch type organic light emitting display device according to the present invention.

When the plasma is formed in the plasma generating apparatus 20, ultraviolet rays are emitted from the plasma. The organic photoluminescent layers 19a, 19b, and 19c are excited by the ultraviolet rays to emit visible light of red (R), green (C), and blue (B). The plasma generator 20 serves as a switch for determining whether the organic light emitting layers 19a, 19b, and 19c emit light.

Referring to the plasma-switched organic light emitting device according to the present invention and a manufacturing method thereof are as follows.

3 is a perspective view of a plasma switch type organic light emitting device according to the present invention.

The plasma switch type organic light emitting display device includes a first substrate portion 26 and a second substrate portion 32.

The first substrate 26 includes a first transparent substrate 21, a plurality of bus lines 22, a dielectric film 23, a vertical partition wall 24, and a lower passivation layer 25.

The bus line 22 on the first transparent substrate 21 is formed in a pair of two electrodes in a stripe shape, and generates plasma together with the plurality of address lines 30 of the second substrate portion 32 described later. The pair of electrodes 22a and 22b are arranged in parallel and adjacent to each other, and alternately play the roles of an anode and a cathode.

The dielectric film 23 laminated on the first transparent substrate 21 including the plurality of bus lines 22 minimizes the absorption of ultraviolet rays in the first transparent substrate 21 when plasma is generated, and reduces wall charges. It is a storage function that accumulates.

The plurality of vertical partition walls 24 stacked on the dielectric film 23 are arranged to be orthogonal to the plurality of bus lines 22 to provide a discharge space for plasma.

In addition, the lower passivation layer 25 stacked on the dielectric layers 23 between the plurality of vertical barrier ribs 24 prevents damage of the dielectric layer 23 by ions when plasma is generated and reduces the plasma generation voltage. do.

The second substrate part 32 includes a second transparent substrate 27, a plurality of organic light emitting layers 28, a first upper passivation layer 29, a plurality of address lines 30, and a second upper passivation layer 31. It is composed.

The red light emitting layer 28a, the green light emitting layer 28b, and the blue light emitting layer 28c are repeatedly arranged in one cycle on the second transparent substrate 27, and the first substrate portion ( The plurality of organic light emitting layers 28 orthogonal to the plurality of vertical partition walls 24 of 26 may collide with ultraviolet rays emitted from the plasma to emit visible light.

The first upper passivation layer 29 stacked on the second transparent substrate 27 including the plurality of organic photoluminescent layers 28 functions to protect the plurality of organic photoluminescent layers 28 and may emit ultraviolet rays generated in the plasma. It is formed of a material that can pass through.

A plurality of stripe-shaped address lines orthogonal to the plurality of organic photoluminescent layers 28 on the first upper passivation layer 29 and arranged in regions corresponding to between the vertical partition walls 24 of the first substrate portion 26. 30 serves to generate a plasma by selecting a specific pixel together with the bus line 22.

In addition, the second upper passivation layer 31 stacked on the first upper passivation layer 29 including the plurality of address lines 30 may protect the plurality of address lines 30 and may pass ultraviolet rays generated in the plasma. To form.

After forming all the components of the 1st board | substrate part 26 and the 2nd board | substrate part 32, sealing is carried out using the 1st board | substrate part 26 as a lower board | substrate, and the 2nd board | substrate part 32 as an upper board | substrate. Seal using a sealing material (not shown). At this time, the address lines 30 of the second substrate portion 32 are orthogonal to the plurality of bus lines 22 of the first substrate portion 26, and the plurality of vertical partition walls 24 of the first substrate portion 26 are formed. Located in between. In addition, the plurality of organic light emitting layers 28 of the second substrate portion 32 are positioned to face each other with the plurality of bus lines 22 of the first substrate portion 26.

Since it is very difficult to form the height of the vertical bulkhead 24 uniformly, the outermost wall (not shown) which is slightly higher than the vertical bulkhead 24 is provided while turning the edge of the first substrate portion 26. After that, the outermost wall is encapsulated and bonded to the second upper passivation layer 31 so that the space between the vertical partition walls 24 is blocked from the outside.

The space between the vertical bulkheads 24 is filled with a plasma forming gas such as He, Ne, Ar, Kr, Xe, Rn, or Hg alone or mixed, and plasma is formed in the space between the vertical bulkheads 24. do. Ultraviolet wavelengths generated in the discharge gas and the plasma are briefly shown in Table 1.

The operation principle of the plasma switch type organic light emitting display device according to the present invention is as follows.

The operation is divided into an address step, a sustain step, and an erase step.

The address step is a step of generating a plasma in a specific selected pixel. When voltage is applied to one of the bus line 22a and the address line 30 of the pair of bus lines, plasma is generated at a selected pixel to which signals are simultaneously applied to the bus line 22a and the address line 30. Done. The voltage applied at this time is called a firing voltage (hereinafter, referred to as a 'Vf voltage'). In addition, wall charges are generated in the space where the plasma is formed in the address step.

The sustaining step is performed after the addressing step, and is performed by cutting off the voltage applied to the address line 30 and applying a voltage lower than the Vf voltage to the pair of bus lines 22a and 22b. In this case, the voltage applied is referred to as a plasma sustain voltage (hereinafter, referred to as a 'Vs voltage').

Since the plasma can be maintained even at a voltage lower than the voltage Vf due to the presence of the wall charge, the plasma is generated by the voltage Vs in the pixel selected once in the address step. However, no plasma is generated by the Vs voltage in the pixel not selected in the address step.

The erasing step is a step of erasing and initializing the wall charges, followed by the holding step.

Gray scale is adjusted by the time to emit light. One frame is divided into several sub-frames, and the light emission time of each pixel is adjusted while repeating the addressing step, holding step, and erasing step in each subframe.

4 is a plan view of a first substrate of the plasma switch type organic light emitting device according to the present invention.

On the first transparent substrate 21, a plurality of bus lines 22 in which a pair of electrodes 22a and 22b are arranged adjacent to each other, and a plurality of partition walls 24 orthogonal to the plurality of bus lines 22 are provided. It is laminated on the first transparent substrate 21 including the bus line 22. Here, the dielectric layer 23 and the lower protective layer 25 are not shown.

5 is a plan view of a second substrate portion of the plasma switch type organic light emitting device according to the present invention.

On the second transparent substrate 27, the plurality of organic photoluminescent layers 28 are repeatedly arranged in one cycle of the red photoluminescent layer 28a, the green photoluminescent layer 28b, and the blue photoluminescent layer 28c. The plurality of address lines 30 having a stripe pattern are arranged in an area orthogonal to the plurality of organic photoluminescent layers 28 and corresponding to between the vertical partitions 24 of the first substrate portion 26. The plurality of organic photoluminescent layers 28 face each other in a one-to-one manner with the plurality of bus lines 22 of the first substrate portion 26.

Here, the first upper passivation layer interposed between the plurality of organic light emitting layers 28 and the plurality of address lines 30 and the second upper passivation layer stacked on the plurality of address lines 30 are not illustrated.

FIG. 6 is a cross-sectional view of the first substrate of the plasma switch type organic light emitting device according to the present invention, taken along line AA ′ of FIG. 4.

As shown in FIG. 6A, a bus line 22 is formed of a metal layer on a first transparent substrate 21 made of glass. As shown in FIG. 3, the bus lines 22 are arranged such that the two electrodes 22a and 22b are adjacent to each other to form a pair. When a voltage is applied to the electrode 22a of the bus line 22 and the address line 30 which will be described later, the selection pixel to which a signal is simultaneously applied to the electrode 22a and the address line 30 of the bus line 22 The plasma is generated in the pixel.

Bus line 22 is formed using a screen printing method using a first screen mask 33 of FIG. 7A in the form of a paste of metal material. Another method is to use photolithography to paste the metal material to which the photosensitive component is added in the form of a paste. Another method is to form and pattern a metal layer by sputtering.

As the metal material of the bus line 22, one of a double layer made of silver, chromium, copper, nickel, gold, chromium / copper, and a triple layer made of chromium / copper / chrome is selected and used.

As shown in FIG. 6B, the dielectric film 23 is formed on the first transparent substrate 21 including the bus lines 22. The dielectric film 23 has a function of storing the wall charges as much as possible by reducing the absorption rate of ultraviolet rays in the first transparent substrate 21 when the plasma is generated. That is, since the efficiency of the visible light generated when the plasma collides with the organic light emitting layer is determined by the amount of ultraviolet rays present in the plasma to the organic light emitting layer, it is necessary to minimize the surface absorption and maximize the reflectance. As the dielectric film 23, a material having a reflectance of about 50 to 60% is used.

The dielectric film 23 is formed by using a screen printing method using a second screen mask (not shown) by making the dielectric material into a paste form.

As the material of the dielectric film 23, one or two or more composite layers of a white dielectric film made of aluminum oxide, lead oxide, titanium oxide, and zirconium oxide are used. Alternatively, borosilicate-based materials may be used.

As shown in FIG. 6C, a lower passivation layer 25 is stacked on the dielectric layer 23. When the plasma is generated, the lower protective film 25 is formed of a material having a large secondary electron emission coefficient to prevent damage to the dielectric film 23 by ions and to reduce the plasma generation voltage. The lower passivation layer 25 uses an oxide-based thin film such as MgO as the passivation layer. The lower passivation layer 25 has a low voltage discharge characteristic because it has a high resistance to plasma sputtering and a high secondary electron emission coefficient. The lower protective film 25 is laminated by electron beam deposition or vacuum deposition to form a thin film having good surface characteristics.

As shown in FIG. 6D, a vertical partition wall 24 perpendicular to the bus line 22 is formed on the lower passivation layer 25. The vertical partition wall 24 determines the distance between electrodes for forming a discharge, and serves to prevent cross-talk due to discharge occurring in adjacent cells.

The vertical partition wall 24 selects one or two or more composite layers from an oxide-based inorganic material such as PbO, B ₂ O ₃ , SiO ₂ , and Al ₂ O ₃ to form the inorganic material in a paste form, and forms a third screen mask. A screen mask 34 is used to form a screen printing method of 10 or more times. The lower vertical partition wall 24 is formed of a white material, and the upper vertical partition wall 24 is formed of a black material. Vertical bulkheads 24 of black material serve to improve the contrast ratio. In this case, the vertical barrier rib 24 may be formed on the dielectric layer 23, and the lower passivation layer 25 may be formed. The lower passivation layer 25 is formed by electron beam or vacuum deposition so as to be stacked on the exposed dielectric layer 23 between the vertical partition walls 24.

FIG. 7 is a cross-sectional view of the first substrate of the plasma switch type organic light emitting device according to the first exemplary embodiment of the present invention, taken along the line BB ′ of FIG. 4.

8 is a cross-sectional view of the second substrate of the plasma switch type organic light emitting device according to the present invention, taken along line AA ′ of FIG. 5.

As shown in FIG. 8A, an organic light emitting layer having a stripe shape orthogonal to the vertical partition wall 24 of the first substrate portion 26 on the second transparent substrate 27 and facing the bus line 22 in a one-to-one manner ( 28) is laminated. The organic light emitting layer 28 is repeatedly arranged with a red light emitting layer 28a, a green light emitting layer 28b, and a blue light emitting layer 28c as one cycle.

The organic photoluminescent layer 28 uses an organic material capable of colliding with ultraviolet rays emitted from the plasma generated from the bus line 22 on the first substrate portion 26 to emit visible light. For example, the types of materials and emission wavelengths are shown in Table 2.

In addition, the organic light emitting layer 28 may be formed in a form in which each pixel is independent using not only a stripe shape but also a screen mask (not shown).

As shown in FIG. 8B, a first upper passivation layer 29 is laminated on the second transparent substrate 27 including the organic light emitting layer 28. The first upper passivation layer 29 is laminated to protect the organic light emitting layer 28. The first upper passivation layer 29 uses MgF ₂ or SiO ₂ which passes ultraviolet rays generated in the plasma, and is formed using a vacuum deposition method. In particular, MgF ₂ is known to transmit light having a wavelength of 147 nm or more.

As shown in FIG. 8C, an address line having a stripe pattern is formed on the first upper passivation layer 29 at an orthogonal angle to the organic light emitting layer 28 and in a region corresponding to between the vertical partitions 24 of the first substrate portion 26. 30 is formed. The address line 30 selects a specific pixel to generate a plasma. The address line uses one of nickel, silver, tungsten, and aluminum and is formed by a vacuum deposition method.

The second upper passivation layer 31 is stacked on the first upper passivation layer 29 including the address line 30. The second upper passivation layer 31 is stacked to protect the address line 30 from the plasma. The second upper passivation layer 31 uses MgF ₂ or SiO ₂ and is formed by a vacuum deposition method.

9 is a cross-sectional view of the second substrate of the plasma switch type organic light emitting device according to the present invention, taken along line BB ′ in FIG. 5.

6 to 9, when the first substrate portion 26 and the second substrate portion 32 are completed, the first substrate portion 26 is used as the back substrate, and the second substrate portion 32 is used as the display substrate. Sealed using a sealing material (not shown). Epoxy resin or the like is used as the encapsulating material, and after drawing the nozzle to the sealing portions of the first substrate portion 26 and the second substrate portion 32, the epoxy It is sealed by UV curing using a mercury lamp (Hg lamp). At this time, the address line 30 of the second substrate portion 32 is located between the vertical partition walls 24 of the first substrate portion 26 and is disposed to be orthogonal to the bus line 22. The address line 30 is positioned so as to be biased on one side between the vertical partition walls 24 in order to maximize the opening area of the pixel.

Such a plasma switch type organic light emitting display device and a method of manufacturing the same according to the present invention have the following effects.

Arranging the organic light emitting layer and the address line in parallel increases the overlapping area. Therefore, in order to prevent the increase in the overlapping area, the organic light emitting layer and the address line are disposed orthogonally to minimize the overlapping area, thereby preventing the organic light emitting layer from being deteriorated by the voltage applied when the plasma is generated. Accordingly, the plasma switch type organic light emitting display device has an effect of long life, high brightness, and high contrast.

The organic light emitting material does not emit light by electric current, but emits light by ultraviolet rays emitted from the plasma. Therefore, an auxiliary layer such as a hole injection layer, a hole transport layer, or an electron transport layer is not required to increase the luminous efficiency of the organic light emitting display device according to the related art. .

In addition, since the organic light emitting layer is not deteriorated by current driving, the performance of the display device is improved.

In addition, preferred embodiments of the present invention are disclosed for the purpose of illustration, those skilled in the art will be able to various modifications, changes, additions, etc. within the spirit and scope of the present invention, these modifications and changes should be seen as belonging to the following claims. something to do

Claims (10)

A first substrate portion having a plurality of first electrodes arranged in a stripe shape and a dielectric film on the plurality of first electrodes; A second substrate portion having a plurality of second electrodes orthogonal to the plurality of first electrodes and arranged in a stripe shape; A plurality of discharge spaces formed in a region where the plurality of first electrodes and the plurality of second electrodes are orthogonal between the first substrate portion and the second substrate portion; And a plurality of organic light emitting layers arranged orthogonally to the plurality of second electrodes on the second substrate portion in the plurality of discharge spaces. The organic light emitting display device of claim 1, wherein the plurality of first electrodes comprises a pair of two electrodes adjacent to each other. The plasma switch type organic light emitting display device according to claim 1 or 2, further comprising a protective film on the dielectric film. The method according to any one of claims 1 to 3, wherein a first protective film and a second protective film are formed between the plurality of organic photoluminescent layers and the plurality of second electrodes and on the plurality of second electrodes, respectively. A plasma switch type organic light emitting display device. The plasma of any one of claims 1 to 4, wherein the plurality of discharge spaces are divided by a plurality of vertical barrier ribs arranged orthogonal to the plurality of first electrodes on the first substrate portion. Switched organic light emitting display device. Preparing a first substrate portion having a plurality of first electrodes arranged in a stripe shape and a plurality of partitions orthogonal to the dielectric film and the plurality of first electrodes on the plurality of first electrodes; A plurality of organic light emitting layers having a stripe shape orthogonal to the plurality of partition walls and facing the plurality of first electrodes and a plurality of organic light emitting layers orthogonal to the plurality of organic light emitting layers and positioned between the plurality of vertical partitions. Preparing a second substrate portion having a plurality of second electrodes; And encapsulating the first substrate portion and the second substrate portion using an encapsulant such that the plurality of second electrodes of the second substrate portion are positioned between the plurality of partition walls of the first substrate portion. A method of manufacturing a plasma switch organic light emitting display device. The plasma switch type organic photoluminescence method according to claim 6, wherein plasma forming gases such as He, Ne, Ar, Kr, Xe, Rn, and Hg are individually or mixedly filled in the spaces between the plurality of partition walls. Manufacturing method of display element. The method of claim 6 or 7, wherein the preparing of the first substrate portion, Forming a plurality of bus lines for use as the plurality of first electrodes on a transparent substrate; Forming a dielectric film on the transparent substrate including the plurality of bus lines; Forming a protective film on the dielectric film; And forming the plurality of barrier ribs on the passivation layer. The method of claim 6, wherein the preparing of the second substrate part comprises: Forming the plurality of organic photoluminescent layers facing one-to-one with the plurality of first electrodes on a transparent substrate; Forming a first passivation layer on the transparent substrate including the plurality of organic light emitting layers; Forming a plurality of address lines on the first passivation layer, the plurality of address lines being used as the plurality of second electrodes orthogonal to the plurality of organic light emitting layers and positioned between the plurality of partition walls; And forming a second passivation layer on the first passivation layer including the plurality of address lines. 10. The method according to any one of claims 6 to 9, wherein the sealing portion between the first substrate portion and the second substrate portion is bonded using an epoxy resin as an encapsulant and UV cured using a mercury lamp. A method of manufacturing a plasma switch organic light emitting display device.