JP2011096375A - Optical device, method of manufacturing the same, and electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a display device having excellent display quality by combining a liquid-droplet discharge method and a spin coat method. <P>SOLUTION: In this manufacturing method, after forming a water repellent lipophilic layer 31 on the top side of a barrier rib 7, the aqueous solution of a hole injection layer 81 is applied to each partitioned region P using a liquid-droplet discharge method. The aqueous solution is repelled by water repellent function of the water repellent lipophilic layer 31 formed on the top side of the barrier rib 7, and is separately applied to each partitioned region P. The solution for forming a luminescent layer 83 is applied to the entire surface while covering the hole injection layer 81 and the barrier rib 7 using a spin coat method capable of obtaining a film pressure more uniform than the liquid-droplet discharge method. The lipophilic solution for forming the luminescent layer is not repelled because of the lipophilic function of the water repellent lipophilic layer 31, and is applied to the surface by the spin coat method, inclusive of the top side of the barrier rib 7. Since the luminescent layer 83 is formed with an almost uniform film thickness, luminance variations are suppressed, and excellent display quality can be obtained. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an optical device, a method for manufacturing the same, and an electronic apparatus including the optical device.

A so-called droplet discharge method is known in which a solution containing an organic EL (Electro Luminescence) material is discharged into a recess surrounded by a partition wall (bank) by an ink jet method and dried to form an organic thin film layer.
In the case of forming a light emitting pixel by a droplet discharge method, liquid repellency is imparted to the upper surface of the partition wall that divides each partition region when one recessed portion partitioned by the partition wall is used as the partition region. This has been done to prevent mixing of the solution between adjacent compartment regions.
For example, Patent Document 1 discloses a method of imparting liquid repellency by transferring a fluorine-based liquid repellent layer to the upper surface of a partition wall. More specifically, after laminating a film having a liquid repellent layer on the upper surface of a lattice-shaped partition wall, only the film is peeled off to selectively form the liquid repellent layer on the upper surface of the partition wall.

On the other hand, a technique for forming an organic thin film layer by applying a solution containing an organic EL material by a spin coating method is also known.
For example, Patent Document 2 discloses a method of forming an organic thin film layer by forming any one of a hole injection layer and an organic thin film layer such as a light emitting layer by a spin coating method.
In addition, the organic thin film layer formed by these manufacturing methods is partitioned by the partition walls described above to form a plurality of pixels. From the viewpoint of uniforming the light emission luminance in each pixel, the organic thin film layer The film thickness is required to be uniform.
From the viewpoint of making the film thickness uniform, in general, an organic thin film layer formed using a coating method such as a spin coating method is more effective than an organic thin film layer formed by a droplet discharge method. It is said that the thickness can be made uniform, and it has been studied to form several layers of a plurality of organic thin film layers by a coating method.

JP 2008-139378 A JP-A-11-121172

However, there is a problem that it is difficult to manufacture an optical device with excellent display quality by combining the droplet discharge method and the coating method. For example, when a light emitting layer that is most required to have a uniform thickness is formed by coating, covering the fluorine-based liquid repellent layer formed on the upper surface of the partition wall in Patent Document 1, the oil-based solution is repelled. It was repelled by the liquid layer, resulting in coating unevenness and insufficient filling, and it was difficult to make the film thickness uniform.
In addition, as described in Patent Document 2, even if an attempt is made to form a hole injection layer using a coating method, crosstalk occurs due to the material characteristics, and it is still difficult to use the coating method. There was a problem. Specifically, when the hole injection layer is formed to cover the liquid repellent layer formed on the upper surface of the partition wall, even if the liquid repellent layer is covered and the film can be uniformly formed, the material of the layer (PEDOT / PSS, etc.) have low electrical resistance, causing electrical interference between pixels in the hole transport layer formed on the liquid repellent layer, causing non-light emitting portions to emit light, or non-selected neighboring pixels. Caused crosstalk that emitted light.
That is, in the manufacturing method of the optical device provided with a plurality of pixels, there has been a problem that a method of effectively utilizing the coating method has not been created.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following application examples or forms.

(Application example)
A method of manufacturing an optical device including a plurality of light-emitting pixels having a plurality of organic functional layers, the step of forming a pixel electrode serving as an opening of a light-emitting pixel on a substrate, and a partition partitioning the plurality of pixel electrodes Forming a lyophilic treatment on the exposed portion including the pixel electrode and the partition, forming a water-repellent lipophilic layer on the upper surface of the partition, and each of the plurality of regions partitioned by the partition When the partition region is formed, a step of applying a solution containing a material constituting the hole injection layer as the organic functional layer to the partition region by a droplet discharge method, and covering the hole injection layer and the partition wall. And applying a solution containing a material constituting the light emitting layer as the organic functional layer by a coating method.

According to this manufacturing method, after forming a water-repellent oleophilic layer on the upper surface of the partition wall, the solution of the hole injection layer is applied to each partition region using a droplet discharge method.
As described above, the hole injection layer generally has a low electric resistance, and if the entire surface is coated by covering the partition wall by spin coating, it causes crosstalk. It is more suitable to use and apply.
For this reason, the hole injection layer formation process uses a droplet discharge method, and the water-soluble hole injection layer solution is repelled by the water repellent function of the water-repellent / lipophilic layer formed on the upper surface of the partition wall. Thus, it is applied separately for each divided area without being applied between the pixels.
Then, the solution of the light emitting layer is applied to the entire surface using a coating method such as a spin coating method so as to cover the hole injection layer and the partition walls. Here, since the solution of the light emitting layer is oily, it can be applied by the coating method including the upper surface of the partition wall without being repelled by the lipophilic function of the water-repellent lipophilic layer formed on the upper surface of the partition wall. .
In other words, by properly using the functions of the water-repellent oleophilic layer, a manufacturing method is selected in which an optimum method according to the characteristics of each organic functional layer is selected from the coating method and the droplet discharge method.
Therefore, in the optical device manufactured by this manufacturing method, the occurrence of crosstalk is reduced and the light emission luminance of each light emitting pixel is made uniform.
Therefore, according to the method for manufacturing an optical device according to the application example, an optical device with excellent display quality can be manufactured by combining the droplet discharge method and the coating method.

In other words, by realizing the formation of the light emitting layer by the coating method capable of forming a film more uniformly than the droplet discharge method, the uniformity of the film thickness of the layer is enhanced and the light emission luminance of each pixel is made uniform. Therefore, the display quality of the optical device can be improved.
Therefore, it is possible to provide a method for manufacturing an optical device that effectively utilizes the coating method.

  A method of manufacturing an optical device including a plurality of light-emitting pixels having a plurality of organic functional layers, the step of forming a pixel electrode serving as an opening of a light-emitting pixel on a substrate, and a partition partitioning the plurality of pixel electrodes Forming a lyophilic treatment on the exposed portion including the pixel electrode and the partition, forming a water-repellent lipophilic layer on the upper surface of the partition, and each of the plurality of regions partitioned by the partition When the partition region is formed, a step of applying a solution containing a material constituting the hole injection layer as the organic functional layer to the partition region by a droplet discharge method, and covering the hole injection layer and the partition wall. Applying a solution containing a material constituting the hole transport layer as the organic functional layer by a coating method, forming a water / oil repellent layer on the hole transport layer on the upper surface of the partition, As an organic functional layer for each partition area Method of manufacturing an optical device which comprises the steps of applying a solution containing a material constituting the light emitting layer by a droplet discharge method, a.

The coating method is preferably any of a spin coating method, a slit coating method, a spray coating method, a dip coating method, and a flow coating method.
The water-repellent oleophilic layer is preferably transferred and formed by laminating a film having the water-repellent oleophilic layer formed on the upper surface of the partition wall and then peeling the film.
The water-repellent / lipophilic layer is preferably any of acrylic resin, acrylic polyol resin, polystyrene, styrene / acrylic copolymer, hydrogenated petroleum resin, ketone resin, and cellulose resin.
The material constituting the hole injection layer preferably includes PEDOT / PSS, the solution containing the material is an aqueous solution, and the solution containing the material constituting the light emitting layer is preferably an oily solution. .
Further, the method further includes a step of forming an electron injection layer as an organic functional layer by covering the light emitting layer by vapor deposition, and a step of forming a common cathode by covering the electron injection layer by vapor deposition. preferable.
The solution containing the material constituting the hole transport layer is an oily solution, and the water / oil repellent layer is formed by laminating a film in which a fluorine-based water / oil repellent lipophilic layer is formed on the upper surface of the partition. The film is preferably transferred and formed by peeling the film.

  A method of manufacturing an optical device in which a plurality of color filters including an organic material is formed, the step of forming partition walls for partitioning a plurality of color filters on a substrate, and a lyophilic process for an exposed portion including the partition walls A step of forming a water repellent lipophilic layer on the upper surface of the partition, and a plurality of regions containing an organic material with respect to the plurality of partitioned regions when each of the plurality of regions partitioned by the partitions is defined as a partitioned region A step of applying an aqueous solution for each color filter by a droplet discharge method, and an oily solution containing a material constituting a protective coating layer having light transmittance covering a plurality of color filters and partition walls by a coating method And a coating step. An optical device manufacturing method comprising:

  An optical device including a plurality of light emitting pixels having a plurality of organic functional layers, a pixel electrode serving as an opening of a light emitting pixel formed on a substrate, a partition partitioning the plurality of pixel electrodes, and an upper surface of the partition A hole injection layer as an organic functional layer formed for each partition region, and each of a plurality of regions partitioned by partition walls as a partition region, and a hole injection layer And a light emitting layer as an organic functional layer formed so as to cover the partition wall.

  An optical device including a plurality of light emitting pixels having a plurality of organic functional layers, a pixel electrode serving as an opening of a light emitting pixel formed on a substrate, a partition partitioning the plurality of pixel electrodes, and an upper surface of the partition A hole injection layer as an organic functional layer formed for each partition region, and each of a plurality of regions partitioned by partition walls as a partition region, and a hole injection layer And a hole transport layer as an organic functional layer formed so as to cover the partition wall, a water / oil repellent layer formed on the hole transport layer on the upper surface of the partition wall, and an organic function formed for each partition region An optical device comprising at least a light emitting layer as a layer.

  An electronic apparatus comprising the above-described optical device in a display portion.

FIG. 6 is a perspective view illustrating one embodiment of a display device according to Embodiment 1; The side sectional view of the display panel in the ii section of Drawing 1. (A) The top view of an element substrate, (b) The side sectional view in the jj section of (a). The flowchart figure which shows the manufacturing process of a display panel. The figure which shows the one aspect | mode in a (a)-(c) manufacturing process. (A), (b) The figure which shows the one aspect | mode in a manufacturing process. (A) The top view of the element substrate in Embodiment 2, (b) The side sectional view in the kk cross section of (a). The flowchart figure which shows the manufacturing process of a display panel. The figure which shows the one aspect | mode in a (a)-(c) manufacturing process. The perspective view which shows the mobile telephone as an electronic device. The top view of the element substrate which concerns on the modification 2. FIG. (A) The top view of CF board | substrate as an optical apparatus which concerns on the modification 3, (b) The side sectional view in the mm cross section of (a).

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the scales are different for each layer and each member so that each layer and each member can be recognized on the drawing.

(Embodiment 1)
"Overview of display device"
FIG. 1 is a perspective view showing an aspect of the display device according to the present embodiment.
First, an overview of the display device 100 as an electro-optical device according to the first embodiment of the invention will be described.

The display device 100 is an organic EL display device, and includes a display panel 18, a flexible substrate 20, and the like. The display panel 18 is a top emission type organic EL display panel in which a plurality of organic functional layers including a light emitting layer are sandwiched between the element substrate 1 and the counter substrate 17, and emits display light from the counter substrate 17 side. To do.
The display panel 18 includes a display region V composed of a plurality of pixels arranged in a matrix. As enlarged and shown in the upper right of FIG. 1, red (R), green (G), and blue (B) color pixels are periodically arranged in the display area V, and each pixel emits display. A full color image is displayed by light. Each pixel is a light-emitting pixel, but is called a pixel. Further, the display panel is not limited to a color display panel, and may be a top emission type organic EL display panel. For example, a display panel for monochrome display may be used.
The display area V has a vertically long rectangle. In each figure including FIG. 1, the vertical direction is defined as the Y-axis direction, and the horizontal direction shorter than the vertical direction is defined as the X-axis direction. The thickness direction of the display panel 18 is the Z-axis direction. Further, the Y-axis (+) and (−) directions are defined as the vertical direction, and the X-axis (+) and (−) directions are defined as the horizontal direction.

As will be described in detail later, the display device 100 forms a plurality of pixels that emit substantially white light on the element substrate 1 side, and arranges each color filter of red, green, and blue on the counter substrate 17 side, whereby each color pixel of RGB This is a top emission type organic EL display panel by “white light emission + color filter system”.
Conventionally, in order to make the emission luminance uniform in these pixels, it has been studied to use a coating method capable of making the thickness of the organic thin film layer more uniform than the droplet discharge method. I couldn't find a good manufacturing method.
On the other hand, according to the manufacturing method of the display device 100, the combination of the droplet discharge method and the coating method is realized by the characteristic configuration and method described later, and an optical device with excellent display quality is manufactured. can do.

In the display panel 18, a flexible substrate 20 is connected to an extended region where the element substrate 1 extends from the counter substrate 17. The flexible board is an abbreviation for a flexible printed circuit board having flexibility in which an iron foil wiring or the like is formed on a polyimide film base. In addition, a driving IC (Integrated Circuit) 21 is mounted on the flexible substrate 20, and a plurality of terminals for connection to a dedicated controller or an external device (none of which are shown) are formed at the end thereof. Has been.
The display panel 18 displays images, characters, and the like in the display area V by receiving control signals including power and image signals from an external device via the flexible substrate 20.

"Schematic configuration of the display panel"
FIG. 2 is a side sectional view taken along the line ii of FIG.
Next, a schematic configuration of the display panel 18 will be described.
The display panel 18 includes an element substrate 1, an element layer 2, a planarizing layer 4, a reflective layer 5, a pixel electrode 6, a partition wall 7, an organic EL layer 8 as an electro-optic layer, a common electrode 9, an electrode protective layer 10, and a buffer layer. 11, a gas barrier layer 12, a filler 13, a CF layer 14, a counter substrate 17, and the like. A portion sandwiched between the element substrate 1 and the counter substrate 17 is referred to as a functional layer 16. In other words, the laminated structure from the element layer 2 to the CF layer 14 is referred to as a functional layer 16.
The element substrate 1 is made of inorganic glass. In this embodiment, alkali-free glass is used as a suitable example. In addition, it is not limited to this structure, You may use a resin substrate. Further, since it is a top emission type, a material having low light transmittance may be used, and for example, a configuration using a metal substrate may be used.
In the element layer 2, a pixel circuit for actively driving each pixel is formed. The pixel circuit includes a selection transistor for selecting a pixel made of a TFT (Thin Film Transistor), a driving transistor 3 for flowing a current to the organic EL layer 8, and the like, which are formed corresponding to each pixel. Has been. The pixel circuit uses low-temperature polysilicon as the active layer as a preferred example, but may have a configuration using amorphous silicon as the active layer.

In the upper layer (Z-axis (−) direction) of the element layer 2, for example, a planarization layer 4 that is an insulating layer made of an acrylic resin or the like is formed.
The reflective layer 5 and the pixel electrode 6 are laminated in this order on the flattening layer 4 so as to be divided for each pixel.
The reflective layer 5 is a reflective layer made of a reflective metal such as aluminum, for example, and reflects light traveling from the organic EL layer 8 toward the element substrate 1 to make light contributing to display.
The pixel electrode 6 is composed of a transparent electrode such as ITO (Indium Tin Oxide) or ZnO, and is connected to a drain terminal of the driving transistor 3 of the element layer 2 and a contact hole penetrating the planarization layer 4 for each pixel. ing. In the present embodiment, as a suitable example, a transparent inorganic insulating layer such as SiO ₂ is interposed between the reflective layer 5 and the pixel electrode 6, but the present invention is not limited to this configuration. As long as the configuration functions as For example, the reflective layer 5 may be omitted, and only the pixel electrode 6 may be formed of a reflective conductive material such as aluminum. Alternatively, the pixel electrode 6 may be formed directly on the reflective layer 5 without interposing an inorganic insulating layer.

The partition wall 7 is made of a photocurable black resin or the like, and partitions each pixel in a lattice shape in a plane. Note that the pixel circuit including the driving transistor 3 in the element layer 2 is disposed so as to overlap the partition in a planar manner in order to prevent malfunction due to light.
In FIG. 2, as a preferred example, a single bank configuration with partition walls 7 (first partition walls) made of an organic material is used. However, for example, a double bank configuration with a lower partition wall (second partition walls) made of an inorganic material may be used. good. In the case of a double bank configuration, a second partition made of an inorganic material film such as SiO ₂ covering the peripheral edge of the pixel electrode 6 is formed below the partition 7 (first partition), and the portion exposed from the second partition is opened. Part.

Further, a water-repellent lipophilic layer, which is one of the characteristic features of the present invention, is formed on the upper surface of the partition wall 7 but is omitted in FIG.
The organic EL layer 8 as a plurality of organic functional layers is an organic EL light emitting layer formed from a plurality of organic functional layers including a hole injection layer and a light emitting layer. In FIG. 2, the organic EL layer 8 has a single layer structure covering the pixel electrode 6 and the partition wall 7, but actually, an organic thin film layer formed covering each part and a partition sectioned by the partition wall 7. The organic thin film layer formed in the region is in a mixed state.
The organic EL layer 8 in the preferred example has a configuration in which a hole injection layer, a light emitting layer, and an electron injection layer are laminated in this order. Alternatively, a configuration in which a hole transport layer is further provided between the hole injection layer and the light emitting layer may be employed.

As a material of the hole injection layer in a preferred example, for example, a mixture (PEDOT / PSS) in which polystyrene sulfonic acid (PSS) as a dopant is added to a polythiophene derivative such as polyethylenedioxythiophene (PEDOT) is used. Further, polystyrene, polypyrrole, polyaniline, polyacetylene, or a derivative thereof may be used.
As a material for the hole transport layer (intermediate layer) in the preferred example, for example, a polyolefin-based polymer fluorescent material having a good hole transport property is used. Alternatively, a triphenylamine polymer may be used.

As a material for the light emitting layer, it is preferable to use a light emitting material that emits substantially white fluorescence or phosphorescence. Alternatively, a light emitting material that emits red, green, blue fluorescence or phosphorescence may be used for each of the organic EL layers 8R, 8G, and 8B.
As a preferred example, a polyolefin polymer fluorescent material corresponding to substantially white, red, green, and blue is used. Alternatively, polythiophenylene derivatives (PF), polyparaphenylene vinylene derivatives (PPV), polyphenylene derivatives (PP), polyparaphenylene derivatives (PPP), polythiophenylene derivatives such as polyvinylcarbazole (PVK), polymethylphenylenesilane (PMPS) ) Etc. may be used. In addition, polymer materials such as perylene dyes, coumarin dyes, rhodamine dyes, rubrene, perylene, 9,10-diphenylanthracene, tetraphenylbutadiene, nile red, coumarin 6, quinacrine, etc. A low molecular material may be doped.
As a material for the electron injection layer, a material having a small work function is preferable. In a suitable example, for example, calcium is used.

The common electrode 9 as a common cathode is a metal thin film layer in which a metal such as MgAg is formed very thin so as to transmit light, and is formed so as to cover the organic EL layer 8 across all pixels.
The electrode protective layer 10 as the cathode protective layer is made of a high-density and highly transparent material such as SiO ₂ , Si ₃ N ₄ , or SiOxNy, and is formed by covering the common electrode 9. In addition, moisture or the like is prevented from entering the organic EL layer 8.
The buffer layer 11 is a transparent organic buffer layer such as a thermosetting epoxy resin.
The gas barrier layer 12 is a gas barrier layer made of the same material as the electrode protective layer 10, and is formed so as to further cover the buffer layer 11, so that moisture and the like enter the internal laminated structure including the organic EL layer 8. Is preventing.
The filler 13 is a transparent adhesive layer made of, for example, a thermosetting epoxy resin, and fills the uneven surface between the gas barrier layer 12 and the CF layer 14 and bonds them together. The display panel 18 also functions to prevent moisture and the like from entering the internal laminated structure including the organic EL layer 8 from the peripheral edge of the display panel 18.

The counter substrate 17 is made of transparent inorganic glass, and non-alkali glass is used as a suitable example. Further, the CF layer 14 is formed on the organic EL layer 8 side (Z-axis (+) side) of the counter substrate 17.
In the CF layer 14, a red color filter 14r, a green color filter 14g, and a blue color filter 14b are arranged similarly to the pixel arrangement. Specifically, the color filters of each color are arranged so as to overlap with the corresponding pixel electrodes 6, and light shielding portions indicated by hatching are formed between the color filters. The light shielding portion is formed in a lattice shape so as to overlap the partition wall 7 in a plan view, and optically functions as a black matrix.
The counter substrate 17 and the element substrate 1 are bonded and sealed with a sealant 15 formed on the peripheral edge of the counter substrate 17. As the sealant 15, an epoxy adhesive, an ultraviolet curable resin, or the like is used.

From each pixel configured in this manner, display light corresponding to the color tone of the color filter is emitted. For example, in the case of a red pixel, the white light emitted from the organic EL layer 8 is selected by the red color filter 14r and emitted from the counter substrate 17 as red display light. The same applies to green and blue pixels.
Thereby, in the display area V, a full-color image is displayed by display light from the plurality of color pixels emitted from the counter substrate 17.

"Detailed structure of element substrate"
FIG. 3A is a plan view of the element substrate 1, and FIG. 3B is a side sectional view taken along the line j-j in FIG.
Here, the planar layout of the element substrate 1 and the laminated structure including the organic EL layer 8 will be described in detail.
FIG. 3A is a plan view of the element substrate 1 in a state where up to the electrode protective layer 10 is formed. As shown in the figure, each of a plurality of regions partitioned in a grid by partition walls 7 is defined as a partition region (pixel) P, and each partition region P has an elliptical pixel electrode 6 that is long in the Y-axis direction. Has been placed. The planar shape of the pixel electrode 6 is not limited to an elliptical shape, and may be a track shape, a rectangle, or a circle.

FIG. 3B is a side cross-sectional view taken along the line j-j in FIG. 3A and shows a state in which one pixel is cut along the longitudinal direction (Y-axis direction).
As shown in the figure, the organic EL layer 8 includes a hole injection layer 81, a light emitting layer 83, and an electron injection layer 84.
The hole injection layer 81 is formed for each partition region P by a droplet discharge method.
The light emitting layer 83 is a light emitting layer that emits substantially white light, and is formed so as to cover the hole injection layer 81 and the partition wall 7 by spin coating.
Here, on the upper surface of the partition wall 7, a water-repellent lipophilic layer 31 which is one of the characteristic structures of the present invention is formed. The water repellent oleophilic layer 31 has a function of repelling an aqueous solution and conforming to an oily solution.
The electron injection layer 84 is formed on the entire surface by covering the light emitting layer 83 by vacuum deposition.
Thus, in the organic EL layer 8, the hole injection layer 81 formed in the partition region P, the light emitting layer 83 formed covering each part including the partition wall 7, and the electron injection layer 84 are mixed. It has a laminated structure.
As described with reference to FIG. 2, the common electrode 9 and the electrode protective layer 10 are formed on the entire surface of the electron injection layer 84 in this order.

"Manufacturing method of display panel"
FIG. 4 is a flowchart showing the manufacturing process of the display panel. FIG. 5A to FIG. 5C are diagrams showing an embodiment in the manufacturing process. 6 (a) and 6 (b) are diagrams showing an embodiment in the manufacturing process.
Here, the manufacturing method of the display panel 18 will be described focusing on the process of the organic EL layer 8.

First, in step S1, the element substrate 1 in which up to the pixel electrode 6 is formed is formed using a known manufacturing method such as a photolithography method, a vapor deposition method, a CVD (Chemical Vapor Deposition) method or the like. In other words, the element substrate 1 on which the pixel electrodes 6 are formed is prepared.
In step S2, lattice-like partition walls 7 are formed using a photolithographic method. Specifically, after applying the above-described photo-curing resin to the entire surface of the element substrate 1 by a spin coat method or the like, the lattice-shaped partition walls 7 are formed by exposing and developing using a lattice-shaped mask. In the preferred example, a black photocurable resin is used.
As a result, as shown in FIG. 3A, the partition walls 7 that partition the plurality of pixel electrodes 6 one by one are formed. In other words, the partition wall 7 that partitions the display region V into a plurality of partition regions P is formed.
In step S3, a lyophilic process is performed on the exposed surface of the display area V including the pixel electrode 6 and the partition wall 7. Specifically, plasma processing using oxygen as a processing gas (O ₂ plasma processing) is performed in an air atmosphere. By this treatment, a hydroxyl group is introduced into the exposed surface of the display area V including the pixel electrode 6 and the partition wall 7 to impart lyophilicity. This state is shown in FIG.

In step S4, as shown in FIG. 5B, the transfer film 130 is overlaid on the element substrate 1 (preparation body), and a water-repellent oleophilic film is formed on the upper surface of the partition wall 7 using the transfer method. To do.
Here, the transfer film 130 is a film member in which a water-repellent lipophilic film 131 is formed (applied) on one surface of a resin film serving as a base material. As the resin film, a polyolefin film, a polystyrene film, a nylon film, a fluororesin film, or the like can be used. Further, as the water-repellent lipophilic film 131, any of acrylic resin, acrylic polyol resin, polystyrene, styrene / acrylic copolymer, hydrogenated petroleum resin, ketone resin, and cellulose resin can be used.
In the present embodiment, as a preferred example, a film made of polyethylene terephthalate (PET) having a thickness of about 20 μm is used as a resin film, and a water-repellent lipophilic film 131 having a thickness of about 80 nm is formed on the film. The transfer film 130 is used.

Then, as shown in the figure, a transfer film 130 is overlaid on the element substrate 1 with the partition wall 7 face up, with the water-repellent oleophilic film 131 side down, to prepare a preparation.
In this embodiment, as a suitable example, the liquid repellent layer is selectively formed on the upper surface of the partition wall 7 by laminating the prepared body with a laminating apparatus. FIG. 5B shows only the pressure rollers 61 and 62 made of an elastomer such as silicon rubber having heat conductivity in the laminating apparatus. Lamination is a kind of transfer method. As specific laminating conditions, the temperature of the pressure rollers 61 and 62 was about 130 ° C., and the conveying speed (laminating speed) of the prepared body was 0.5 m / min.
Note that the transfer method is not limited to the laminating method using a roller, and any transfer method capable of selectively forming a liquid repellent layer on the upper surface of the partition wall 7 may be used. For example, a method of selectively forming a liquid repellent layer on the upper surface of the partition wall 7 by pressing a flat plate heated from above the preparation body may be used.
As a result, as shown in FIG. 5C, the water repellent lipophilic layer 31 is selectively formed on the upper surface of the partition wall 7. The water repellent lipophilic layer 31 is a part of the water repellent lipophilic film 131 transferred thereto.
Further, the upper surface of the partition wall 7 refers to the upper base in the cross-sectional shape of the partition wall 7 having a substantially trapezoidal shape with a long lower base and a short upper base, and is actually a convex shape including a curved surface. Yes.

In step S5, the hole injection layer 81 is formed in each partition region P using a droplet discharge method (inkjet method). The formation process of the hole injection layer 81 includes a solution application process and a drying process.
First, in the solution application step, an aqueous solution containing a material constituting the hole injection layer 81 is discharged for each partition region P using a droplet discharge device. Note that the present invention is not limited to the ink jet method, and any coating method capable of discharging the solution to a predetermined position may be used. For example, a dispenser method such as a jet dispenser method or a needle dispenser method may be used.
FIG. 5C shows a state in which the solution d1 is discharged from the nozzle 510 of the droplet discharge device and landed in the partition region P to form a convex (polka dot) solution reservoir u1. .
Here, the solution reservoir u1 has a convex shape because the pixel electrode 6 and the like forming the bottom of the partition region P have lyophilic properties, and the water-repellent and lipophilic layer 31 has liquid repellency with respect to an aqueous solution. This is because the filled solution accumulates in the partition region P with a polka dot-like bulge due to its surface tension.

In the drying process, vacuum drying and heat treatment are performed. First, the element substrate 1 on which the solution has been applied is transferred to a vacuum chamber and vacuum dried. As a result, the boiling point of the solvent in the solution decreases and the solvent evaporates at a low temperature, so that the solute is deposited and a hole injection layer is formed. Further, heat treatment is performed to remove the remaining solvent. In a preferred example, heat treatment is performed at about 200 ° C. for about 10 minutes in a nitrogen gas atmosphere.
In the drying process, the element substrate 1 may be heated. For example, a method of heating the substrate on a hot plate or a method of irradiating an infrared lamp from above the display region V can be employed. Further, these methods may be combined. According to such a method, drying can be performed more efficiently.
When the drying process is completed, the solvent in the solution is blown off, and a hole injection layer 81 that covers the pixel electrode 6 is formed at the bottom of the partition region P as shown by the dotted line in FIG.

In step S6, the hole injection layer 81 and the light emitting layer 83 covering the partition wall 7 are formed by using a spin coating method. Note that the formation process of the light emitting layer 83 includes a solution application process and a drying process.
First, in the solution application step, an oily solution containing the material constituting the light emitting layer 83 is applied by spin coating to cover the hole injection layer 81 and the partition wall 7.
Here, since the water repellent lipophilic layer 31 formed on the upper surface of the partition wall 7 is compatible with the oily solution, the partition wall 7 is covered without repelling the solution of the light emitting layer, and light emission with a substantially uniform film thickness is performed by spin coating. A layer 83 can be formed. In the above description, a spin coating method is used as a preferred example, but the present invention is not limited to the spin coating method, and a coating method such as a slit coating method, a spray coating method, a dip coating method, or a flow coating method is used. Also good.
The drying process is the same as that described in step S5. Specifically, vacuum drying and heat treatment are performed.
When the drying step is completed, the solvent in the solution is blown off, and as shown in FIG. 6A, the light emitting layer 83 is formed on the entire surface covering the hole injection layer 81 and the partition wall 7.

In step S7, the electron injection layer 84 made of calcium is formed so as to cover the light emitting layer 83 using a vacuum deposition method.
In step S8, the common electrode 9 made of MgAg is formed so as to cover the electron injection layer 84 by using a vacuum evaporation method.
In step S9, the electrode protection layer 10 made of SiO ₂ is formed using the CVD method so as to cover the common electrode 9. This state is shown in FIG. FIG. 6B is the same drawing as FIG.

Further, following step S9, a buffer layer 11 made of a thermosetting epoxy resin, a gas barrier layer 12 made of SiO ₂ or the like is formed by using a spin coat method, a CVD method, or the like, as shown in FIG. Thus, the element substrate 1 is completed.
Then, the display substrate 18 is completed by bonding the element substrate 1 having the laminated structure and the separately manufactured counter substrate 17 together with the filler 13 or the sealant 15.

"Dimensions in the preferred example"
The dimensions of each part according to the above-described preferred example will be introduced with reference to FIG.
First, the “length (Y-axis direction) × width (X-axis direction)” of the partition region was set to “about 300 μm × about 150 μm”.
The length of the pixel electrode 6 was about 200 μm and the width was about 100 μm.
The height (thickness) of the partition wall 7 was about 3 μm.
The thickness of the water repellent lipophilic layer 31 was about 80 nm.

As described above, according to the display device 100 and the manufacturing method according to the present embodiment, the following effects can be obtained.
According to this manufacturing method, after forming the water-repellent oleophilic layer 31 on the upper surface of the partition wall 7, the solution of the hole injection layer 81 is applied to each partition region P using the droplet discharge method.
As described above, the hole injection layer 81 generally has a low electrical resistance, and if the entire surface of the hole injection layer 81 is covered by spin coating, it causes crosstalk. It is more suitable to apply using a simple droplet discharge method.
For this reason, in the step of forming the hole injection layer 81, a droplet discharge method is used, and the water-soluble hole injection layer solution is used for the water-repellent function of the water-repellent / lipophilic layer 31 formed on the upper surface of the partition wall 7. Are applied to each partition region P without being applied between pixels.
Then, the solution of the light emitting layer is applied to the entire surface covering the hole injection layer 81 and the partition wall 7 by using a spin coat method that can obtain a more uniform film pressure than the droplet discharge method. Here, since the solution of the light emitting layer is oily, it is applied by the spin coat method including the upper surface of the partition wall 7 without being repelled by the lipophilic function of the water repellent lipophilic layer 31 formed on the upper surface of the partition wall 7. can do.
In other words, by properly using the function of the water-repellent oleophilic layer 31, a manufacturing method is selected in which an optimum method according to the characteristics of each organic functional layer is selected from the spin coating method and the droplet discharge method.
Therefore, in the display device 100 manufactured by this manufacturing method, the occurrence of crosstalk is reduced and the light emission luminance of each light emitting pixel is made uniform.
Therefore, according to the manufacturing method according to the present embodiment, the display device 100 with excellent display quality can be manufactured by combining the droplet discharge method and the coating method.

In other words, since the formation of the light emitting layer 83 by the coating method is realized, the uniformity of the film thickness of the layer is increased and the light emission luminance of each pixel is made uniform, so that the display quality of the display device 100 is improved. Can be increased.
Therefore, it is possible to provide a method for manufacturing the display device 100 that effectively utilizes the coating method.

(Embodiment 2)
FIG. 7A is a plan view of the element substrate according to the second embodiment, and corresponds to FIG. FIG. 7B is a cross-sectional view taken along the line kk in FIG. 7A and corresponds to FIG.
The display device according to Embodiment 2 of the present invention will be described below. In addition, about the component same as Embodiment 1, the same number is attached | subjected and the overlapping description is abbreviate | omitted.

The display device of the present embodiment includes an element substrate 1b having a configuration different from that of the element substrate 1 of the first embodiment. Specifically, the organic EL layer 8 is different from the element substrate 1 of the first embodiment in that the hole transport layer 82 is added. Further, part of the manufacturing method is different with the change of the configuration. Other than that, it is substantially the same as the description in the first embodiment. The element substrate 1b refers to the entire multilayer structure formed on the element substrate 1 in the present embodiment.
First, the planar aspect of the element substrate 1b shown in FIG. 7A is the same as the planar aspect of Embodiment 1 in FIG.
FIG. 7B is a cross-sectional view of the same portion as the jj cross section in FIG. 3A, and as shown in the drawing, the organic EL layer 8 according to the second embodiment includes a hole injection layer 81. , A hole transport layer 82, a light emitting layer 83, and an electron injection layer 84.

As in the first embodiment, the hole injection layer 81 is formed for each partition region P by the droplet discharge method.
The hole transport layer 82 is formed so as to cover the hole injection layer 81 and the partition wall 7 by a coating method.
In the light emitting layer 83, a light emitting layer for each color light of RGB is formed for each partition region P by a droplet discharge method.
Here, a water-repellent lipophilic layer 31 is formed on the upper surface of the partition wall 7 as in the first embodiment. Further, the present embodiment is different from the first embodiment in that a water / oil repellent layer 32 is further formed on the hole transport layer 82 on the upper surface of the partition wall 7.
Further, the electron injection layer 84 is formed on the entire surface by covering the light emitting layer 83 and the partition wall 7 by a vacuum deposition method.
As described above, the organic EL layer 8 includes the hole injection layer 81 formed in the partition region P, the light emitting layer 83, the hole transport layer 82 formed so as to cover each part including the partition wall 7, and the electron injection. The layer 84 has a mixed laminated structure. The configuration other than these laminated structures is the same as that in the first embodiment.

"Manufacturing method of display panel"
FIG. 8 is a flowchart showing the manufacturing process of the display panel according to Embodiment 2, and corresponds to FIG. FIGS. 9A to 9C are diagrams showing an embodiment in the manufacturing process and correspond to FIGS.
Here, the manufacturing method of the display panel 18 will be described focusing on the process of the organic EL layer 8. In addition, the overlapping description is abbreviate | omitted about the process same as the process of FIG.

First, the process from the pixel electrode formation process in step S11 to the hole injection layer formation process in step S15 is the same as each process from step S1 to step S5 in FIG.
In step S16, the hole injection layer 81 and the hole transport layer 82 that covers the partition walls 7 are formed by using a spin coating method. The formation process of the hole transport layer 82 includes a solution application process and a drying process.
First, in the solution application step, an oily solution containing a material constituting the hole transport layer 82 is applied by spin coating so as to cover the hole injection layer 81 and the partition wall 7.
Here, since the water repellent lipophilic layer 31 formed on the upper surface of the partition wall 7 is compatible with the oily solution, it covers the partition wall 7 without repelling the solution of the hole transport layer, and has a substantially uniform film thickness by spin coating. Hole transport layer 82 can be formed. Note that the present invention is not limited to the spin coating method, and other coating methods may be used as in the description in the first embodiment.
The drying process is the same as that described in the first embodiment. Specifically, vacuum drying and heat treatment are performed.
When the drying process is completed, the solvent in the solution is blown off, and as shown in FIG. 9A, the hole transport layer 82 is formed on the entire surface covering the hole injection layer 81 and the partition wall 7. In addition, since the hole transport layer 82 is required to have a uniform insulating property, the organic EL layer 8 is required to have a uniform film thickness after the light emitting layer 83.

In step S17, the transfer film is overlaid on the element substrate 1, and the water / oil repellent layer 32 is formed on the upper surface of the partition wall 7 using the transfer method. The transfer film is a film member in which a water / oil repellent film is formed (applied) on one surface of a resin film as a base material.
Specifically, the water / oil repellent layer 32 is formed on the hole transport layer 82 on the upper surface of the partition wall 7 as shown in FIG. Form. The material of the transfer film and the lamination conditions are the same as described in the first embodiment.
As the water / oil repellent film, a liquid repellent containing a fluorine compound or a silicon compound can be used. In the present embodiment, Novec (registered trademark) EGC-1720 manufactured by Sumitomo 3M Limited is used as a preferred example.

In step S <b> 18, the light emitting layer 83 is formed in each partition region P using a droplet discharge method (inkjet method). Note that the formation process of the light emitting layer 83 includes a solution application process and a drying process.
In the solution application step, an oily solution containing the material constituting the light emitting layer 83 is discharged for each partition region P using a droplet discharge device. Specifically, as shown in FIG. 7A, a solution corresponding to each color of RGB is applied to each pixel column. Note that the present invention is not limited to the ink jet method, and any application method that can discharge a solution to a predetermined position is the same as described in the first embodiment.
FIG. 9B shows a state in which the solution d2 is discharged from the nozzle 520 of the droplet discharge device and landed in the partition region P to form a convex (polka dot) solution reservoir u2. .
Here, the reason that the solution reservoir u2 has a convex shape is that the water / oil repellent layer 32 has liquid repellency with respect to the oily solution, and the filled solution has a polka dot shape due to its surface tension. It will accumulate in the partition area P with a bulge.
The drying process is the same as that described in the first embodiment (step S5).
When the drying process is completed, the solvent in the solution is blown off, and the light emitting layer 83 is formed on the hole transport layer 82 on the bottom side of the partition region P as shown by the dotted line in FIG. .

In step S19, the electron injection layer 84 made of calcium is formed using the vacuum deposition method so as to cover the light emitting layer 83 and the partition walls 7.
And the common electrode formation process of step S20 and the electrode protective layer formation process of step S21 are the same as each process of step S8-step S9 of FIG.
Further, following step S21, the buffer substrate 11, the gas barrier layer 12, and the like are formed to complete the element substrate 1b, and the counter substrate 17 manufactured separately is pasted using the filler 13 and the sealant 15. In addition, the completion of the display panel 18 is the same as described in the embodiment.

In FIG. 2, when the element substrate 1b according to the second embodiment is applied, the pixel that emits each color of RGB is further covered with each color filter of RGB. According to this configuration, high contrast is ensured. can do. Specifically, the display panel 18 of the top emission type has a problem that the contrast is lowered by the reflected light reflected by the reflective layer 5 from the external light incident from the counter substrate 17. Since the reflectance other than the emission color can be suppressed, high contrast can be ensured.
Further, the display panel 18 is not limited to the top emission type, but may be configured as a bottom emission type. In the case of this configuration, the reflective layer 5 may be deleted, and the common electrode 9 may be a reflective electrode made of aluminum or the like having excellent reflectivity.
According to this, it is possible to configure a bottom emission type display panel that emits RGB display light from the element substrate 1 side.

As described above, according to the optical device and the manufacturing method according to the present embodiment, the following effects can be obtained in addition to the effects of the first embodiment.
According to this manufacturing method, the hole transport layer 82, which is required to have a uniform film thickness among the organic EL layers 8, can be obtained by properly using the functions of the water / oil repellent layer 31 and the water / oil repellent layer 32. It is formed using a spin coating method that can obtain a more uniform film pressure than the droplet discharge method. In addition, the hole injection layer 81 that may cause crosstalk when formed using a spin coating method is formed using a droplet discharge method that can be applied separately for each partition region P.
That is, by effectively using the water-repellent / oil-repellent layer 31 and the water- and oil-repellent layer 32, a manufacturing method in which an optimum method according to the characteristics of each organic functional layer is selected from the coating method and the droplet discharge method. It has become a method.
Therefore, in the display device manufactured by this manufacturing method, the occurrence of crosstalk is reduced and the light emission luminance of each light emitting pixel is made uniform.
Therefore, according to the manufacturing method according to the present embodiment, a display device with excellent display quality can be manufactured by combining the droplet discharge method and the coating method.

(Electronics)
FIG. 10 is a perspective view showing a mobile phone equipped with the display device described above.
The display device 100 described above can be used by being mounted on a mobile phone 200 as an electronic device, for example.
The mobile phone 200 includes a main body 350 and a display unit 370 that can be opened and closed with respect to the main body, and incorporates the display device 100 according to the first embodiment. Specifically, the display device 100 is incorporated in the display unit 370, and the display panel 18 is a display screen. The main body unit 350 is provided with an operation unit 365 having a plurality of operation buttons.
That is, the mobile phone 200 is equipped with the display device 100 with excellent display quality. Therefore, the mobile phone 200 having a clear display screen can be provided.
Note that the element substrate 1b according to the second embodiment may be used as the element substrate of the display panel 18. Even in this case, the same function and effect can be obtained.

Further, the mode of the mobile phone is not limited to the folding type shown in FIG. 10, and any mobile phone provided with a display panel may be used.
For example, the display unit 370 may be a mobile phone that can be folded and turned with respect to the main body 350. Alternatively, the mobile phone may be an integrated mobile phone or a sliding mobile phone in which an operation unit is housed in an integrated main body.
The electronic device is not limited to a mobile phone, and any electronic device provided with a liquid crystal panel may be used.
For example, it can be used in various electronic devices such as a display device for a car navigation system, PDA (Personal Digital Assistants), a mobile computer, a digital camera, a digital video camera, an in-vehicle device, and an audio device.
According to these electronic devices, a high-quality display can be obtained.

  Note that the present invention is not limited to the above-described embodiment, and various modifications and improvements can be added to the above-described embodiment. A modification will be described below.

(Modification 1)
This will be described with reference to FIGS. 3B and 7B.
In each of the above embodiments, the organic EL layer 8 has a laminated structure of a three-layer structure including the hole injection layer 81, the light emitting layer 83, and the electron injection layer 84, or the hole injection layer 81, the hole transport layer 82, and the light emitting layer 83. The four-layer structure including the electron injection layer 84 has been described, but the structure is not limited to this.
For example, a two-layer configuration including a hole injection layer and a light emitting layer may be used, or a configuration in which a hole blocking layer is further provided between the light emitting layer and the electron injection layer may be used.
Even in these configurations, the coating method and the droplet discharge method can be used by effectively using the functions of the water-repellent / oil-repellent layer or the combination of the water- and oil-repellent layers depending on the characteristics of each organic functional layer. A manufacturing method in which the optimum method is selected can be realized.
In addition, even with this manufacturing method, it is possible to obtain the same operational effects as in the above embodiments.

(Modification 2)
FIG. 11 is a plan view of an element substrate according to the second modification, and corresponds to FIG.
In each of the above embodiments, one partition region P is formed for each pixel electrode 6 by the partition wall 7. However, the present invention is not limited to this configuration. For example, as shown in FIG. 11, a partition 77 configuration in which one partition region P is formed for a plurality of pixel electrodes 6 may be used.
The element substrate 51 of Modification 2 includes a partition wall 77 different from the partition wall 7 (FIG. 3) of the first embodiment. Specifically, the partition 77 has a configuration in which one partition region P (common bank) is formed for two pixel electrodes 6 adjacent in the Y-axis direction. For this reason, the length of the partition area P in the vertical direction (Y-axis direction) is longer than that of the partition area P of FIG. Except this point, it is the same as the description in the first embodiment.

Even in this configuration, since the manufacturing method in each of the above embodiments can be applied, the same effects as those in each of the above embodiments can be obtained.
Note that the present invention is not limited to the configuration in which one partition region P is formed for two pixel electrodes 6, and that one partition region P is formed for three or more pixel electrodes 6. Also good. Alternatively, a change is made such that one partition region P is formed for the plurality of pixel electrodes 6 in the peripheral portion of the display region V, and one partition region P is formed for one pixel electrode 6 in the center portion. You may let them. Even if it is these structures, the effect similar to said each embodiment can be acquired.

(Modification 3)
FIG. 12A is a plan view of a CF substrate as an optical device according to the third modification, and corresponds to FIG. FIG. 12B is a side sectional view of the mm section in FIG. 12A and corresponds to FIG.
In the above embodiments, the display panel 18 that is an organic EL panel has been described. However, the display panel 18 may be applied to a CF substrate 115 as an optical device. In addition, about the component same as Embodiment 1, the same number is attached | subjected and the overlapping description is abbreviate | omitted.
The CF substrate 115 according to Modification 3 is a substrate on which a color filter used for a liquid crystal panel or a top emission type organic EL panel is formed. For this reason, the pixel electrode 6, the element layer 2 (FIG. 2), etc. are not formed.

The CF substrate 115 includes a transparent substrate 111, a color filter layer 181, a partition wall 7, a protective coat layer 185, and the like.
The transparent substrate 111 is an inorganic or organic substrate having transparency.
The partition walls 7 are formed in a lattice shape so as to partition each partition region P in a matrix shape corresponding to the planar pixel arrangement of the liquid crystal panel in which the CF substrate 115 is incorporated.
As shown in FIG. 12A, the color filter layer 181 is formed in vertical stripes in which color filters of each color of RGB are periodically repeated for each partition region P row.
The protective coat layer 185 is a protective coat layer made of a transparent resin that covers the color filter layer 181 and the partition walls 7 and is formed on the entire surface.

A part of the manufacturing method of the first embodiment can also be applied to manufacturing the CF substrate 115. Hereinafter, a description will be given while comparing with the flowchart of FIG.
Specifically, first, after the lattice-like partition walls 7 are formed on the transparent substrate 111, a lyophilic process is performed on the transparent substrate 111 and the exposed surfaces of the partition walls 7 in the same manner as in step S3 of FIG.
Next, the water repellent lipophilic layer 31 is formed on the upper surface of the partition wall 7 as in step S4.
Then, as in step S5, an aqueous solution for each color filter layer is applied to each partition region P by the droplet discharge method and dried.
Finally, an oily solution containing a material constituting the protective coating layer 185 having light transmittance is applied by a spin coating method so as to cover the color filter layer 181 and the partition wall 7. Note that the present invention is not limited to the spin coating method, and other coating methods may be used as in the description in the first embodiment.

As described above, by effectively utilizing the function of the water-repellent lipophilic layer 31, the color filter layer using the aqueous solution is applied to each partition region P by the droplet discharge method, and the protective coat layer using the oil-based solution is provided. It can be applied to the entire surface by a coating method.
In particular, conventionally, a method of forming the water-repellent / oleophilic layer 31 of FIG. 12B with a water- and oil-repellent layer that also has oil repellency has been generally used. In this configuration, before the protective coat layer 185 is formed, In addition, it was necessary to remove the water / oil repellent layer. On the other hand, according to the manufacturing method of the third modification, the protective coat layer 185 can be formed without removing the water-repellent lipophilic layer 31, so that the manufacturing efficiency is good.
Therefore, a method for manufacturing the CF substrate 115 with excellent manufacturing efficiency can be provided.

  DESCRIPTION OF SYMBOLS 1,51 ... Element board | substrate as a board | substrate, 6 ... Pixel electrode, 7,77 ... Partition, 8 ... Organic electroluminescent layer as a multiple layer organic functional layer, 9 ... Common electrode as a common cathode, 18 ... Display panel, 31 DESCRIPTION OF SYMBOLS ... Water repellent lipophilic layer, 32 ... Water repellent / oil repellent layer, 81 ... Hole injection layer, 82 ... Hole transport layer, 83 ... Light emitting layer, 84 ... Electron injection layer, 100 ... Display device as an optical device, 111 ... Transparent Substrate, 115 ... CF substrate as optical device, 181 ... color filter layer as color filter, 185 ... protective coat layer, 200 ... cell phone as electronic device, d1, d2 ... droplet, u1, u2 ... solution reservoir, P: partition area, V: display area.

Claims (12)

A method of manufacturing an optical device including a plurality of light emitting pixels having a plurality of organic functional layers,
Forming a pixel electrode to be an opening of the light emitting pixel on a substrate;
Forming a partition partitioning a plurality of the pixel electrodes;
Applying lyophilic treatment to the exposed portion including the pixel electrode and the partition;
Forming a water repellent lipophilic layer on the upper surface of the partition;
When each of the plurality of regions partitioned by the partition walls is defined as a partitioned region, a solution containing a material constituting the hole injection layer as the organic functional layer is applied to the partitioned region by a droplet discharge method. Applying step;
And a step of coating a solution containing a material constituting the light emitting layer as the organic functional layer so as to cover the hole injection layer and the partition wall by a coating method. . A method of manufacturing an optical device including a plurality of light emitting pixels having a plurality of organic functional layers,
Forming a pixel electrode to be an opening of the light emitting pixel on a substrate;
Forming a partition partitioning a plurality of the pixel electrodes;
Applying lyophilic treatment to the exposed portion including the pixel electrode and the partition;
Forming a water repellent lipophilic layer on the upper surface of the partition;
When each of the plurality of regions partitioned by the partition walls is defined as a partitioned region, a solution containing a material constituting the hole injection layer as the organic functional layer is applied to the partitioned region by a droplet discharge method. Applying step;
A step of coating the hole injection layer and the partition wall with a solution containing a material constituting the hole transport layer as the organic functional layer by a coating method;
Forming a water / oil repellent layer on the hole transport layer on the upper surface of the partition;
Applying each of the partition regions with a solution containing a material constituting the light emitting layer as the organic functional layer by a droplet discharge method.   3. The method of manufacturing an optical device according to claim 1, wherein the coating method is any one of a spin coating method, a slit coating method, a spray coating method, a dip coating method, and a flow coating method.   The water-repellent oleophilic layer is formed by laminating a film on which the water-repellent oleophilic layer is formed on the upper surface of the partition wall, and then transferring the film to peel off the film. The manufacturing method of the optical apparatus as described in any one of 1-3.   The water-repellent lipophilic layer is any one of an acrylic resin, an acrylic polyol resin, polystyrene, a styrene / acrylic copolymer, a hydrogenated petroleum resin, a ketone resin, and a cellulosic resin. The manufacturing method of the optical apparatus as described in any one. The material constituting the hole injection layer includes PEDOT / PSS, and the solution containing the material is an aqueous solution,
The method for manufacturing an optical device according to claim 1, wherein the solution containing the material constituting the light emitting layer is an oily solution. A step of forming an electron injection layer as the organic functional layer by covering the light emitting layer by vapor deposition;
The method for manufacturing an optical device according to claim 1, further comprising a step of covering the electron injection layer and forming a common cathode by a vapor deposition method. The solution containing the material constituting the hole transport layer is an oily solution,
The water / oil repellent layer is formed by laminating a film on which the fluorine-based water-repellent / oil-repellent layer is formed on the upper surface of the partition, and then transferring the film by peeling the film. The manufacturing method of the optical apparatus as described in any one of Claims 2-7. A method of manufacturing an optical device in which a plurality of color filters containing an organic material is formed,
Forming a partition partitioning the plurality of color filters on the substrate;
Applying lyophilic treatment to the exposed portion including the partition;
Forming a water repellent lipophilic layer on the upper surface of the partition;
When each of the plurality of regions partitioned by the partition walls is defined as a partition region, an aqueous solution for each of the plurality of color filters containing the organic material is applied to the plurality of partition regions by a droplet discharge method. And a process of
And a step of coating an oily solution containing a material constituting a protective coating layer having light permeability so as to cover the plurality of color filters and the partition wall by a coating method. Method. An optical device including a plurality of light emitting pixels having a plurality of organic functional layers,
A pixel electrode serving as an opening of the light emitting pixel formed on the substrate;
A partition partitioning a plurality of the pixel electrodes;
A water-repellent lipophilic layer formed on the upper surface of the partition;
When each of the plurality of regions partitioned by the partition walls is defined as a partitioned region, a hole injection layer as the organic functional layer formed for each partitioned region,
An optical device comprising at least the hole injection layer and a light emitting layer as the organic functional layer formed so as to cover the partition. An optical device including a plurality of light emitting pixels having a plurality of organic functional layers,
A pixel electrode serving as an opening of the light emitting pixel formed on the substrate;
A partition partitioning a plurality of the pixel electrodes;
A water-repellent lipophilic layer formed on the upper surface of the partition;
When each of the plurality of regions partitioned by the partition walls is defined as a partitioned region, a hole injection layer as the organic functional layer formed for each partitioned region,
A hole transport layer as the organic functional layer formed to cover the hole injection layer and the partition;
A water / oil repellent layer formed on the hole transport layer on the upper surface of the partition;
An optical device comprising at least a light emitting layer as the organic functional layer formed for each partition region.   An electronic apparatus comprising the optical device according to claim 10 in a display unit.

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