Display device, display device manufacturing method, and electronic device

Abstract

In the display device according to the invention, light emitting portions formed by laminating a first electrode, an organic layer, and a second electrode are formed and arrayed on a substrate in a two-dimensional matrix. The first electrode is provided for each light emitting portion. A partition portion is formed between adjacent first electrodes. The organic layer and the second electrode are laminated on the entire surface over the first electrodes and the partition portion. The partition portion has a light reflection surface made of a metal layer. At a part of the side surface of the partition portion on the first electrode side, a concave portion toward the inside of the partition portion is provided.

Description

[Technical field]

[0001] The present disclosure relates to a display device, a manufacturing method for a display device, and an electronic device. [Background technology]

[0002] In recent years, displays using organic electroluminescence have been attracting attention as a display device to replace liquid crystal display devices. Hereinafter, displays using organic electroluminescence may be abbreviated as "organic EL display devices" or simply "display devices." Organic EL display devices are self-luminous, and furthermore, have sufficient responsiveness to high-definition high-speed video signals, and commercialization of such devices is being actively pursued.

[0003] In display devices to be attached to eyewear such as glasses or goggles, in addition to a pixel size of several micrometers to about 10 micrometers, high brightness is required. For example, Japanese Patent Laid-Open Publication No. 2007-165214 (Patent Document 1) discloses that light is reflected by a partition wall that separates light-emitting sections, thereby improving the light extraction efficiency and achieving high brightness. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2007-165214 A Summary of the Invention [Problem to be solved by the invention]

[0005] When a light reflecting surface is formed on the partition wall that separates the light emitting sections, leakage at the end of the light reflecting surface may cause abnormal light emission, or leakage may occur between adjacent pixels via the interface of the organic layer that constitutes the light emitting section, which may result in reduced brightness and reliability.

[0006] Therefore, an object of the present disclosure is to provide a display device that can improve light extraction efficiency and reduce leakage between adjacent pixels, a manufacturing method for such a display device, and an electronic device equipped with such a display device. [Means for solving the problem]

[0007] In order to achieve the above object, a display device according to the present disclosure includes: A light-emitting section, which is formed by laminating a first electrode, an organic layer, and a second electrode, is arranged in a two-dimensional matrix on a substrate, The first electrode is provided for each light-emitting portion, A partition portion is formed between adjacent first electrodes, an organic layer and a second electrode are laminated on the entire surface including the first electrode and the partition wall; The partition has a light reflecting surface made of a metal layer, A recess is provided on a side surface of the partition wall on the first electrode side, the recess being directed toward the inside of the partition wall. It is a display device.

[0008] In order to achieve the above object, a method for manufacturing a display device according to the present disclosure includes: A method for manufacturing a display device in which light-emitting sections each having a first electrode, an organic layer, and a second electrode laminated thereon are arranged in a two-dimensional matrix on a substrate, the method comprising the steps of: A step of forming a first electrode corresponding to each light emitting portion; forming a partition wall portion in a region corresponding to a region between adjacent first electrodes; a step of laminating an organic layer and a second electrode on the entire surface including the first electrode and the partition wall; It has the step of forming the partition portion includes a step of providing a recess facing the inside of the partition portion on a side surface of the partition portion on the first electrode side, and a step of providing a light reflecting surface made of a metal layer on the partition portion. A method for manufacturing a display device.

[0009] In order to achieve the above object, an electronic device according to the present disclosure includes: A light-emitting section, which is formed by laminating a first electrode, an organic layer, and a second electrode, is arranged in a two-dimensional matrix on a substrate, The first electrode is provided for each light-emitting portion, A partition portion is formed between adjacent first electrodes, an organic layer and a second electrode are laminated on the entire surface including the first electrode and the partition wall; The partition has a light reflecting surface made of a metal layer, A recess is provided on a side surface of the partition wall on the first electrode side, the recess being directed toward the inside of the partition wall. The electronic device is equipped with a display device. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic plan view of a display device according to a first embodiment of the present disclosure. [Diagram 2] FIG. 2 is a schematic partial cross-sectional view of the display device according to the first embodiment. [Diagram 3] 3A, 3B, and 3C are schematic partial end views for explaining the manufacturing method of the display device according to the first embodiment. [Figure 4] 4A and 4B are schematic partial end views illustrating the manufacturing method of the display device according to the first embodiment, following FIG. 3C. [Diagram 5] 5A and 5B are schematic partial end views for explaining the manufacturing method of the display device according to the first embodiment, following FIG. 4B. [Figure 6] 6A and 6B are schematic partial end views illustrating the manufacturing method of the display device according to the first embodiment, following FIG. 5B. [Figure 7] 7A and 7B are schematic partial end views for explaining the manufacturing method of the display device according to the first embodiment, following FIG. 6B. [Figure 8] FIG. 8 is a schematic partial cross-sectional view of a display device according to a modified example of the first embodiment. [Figure 9]9A and 9B are schematic partial end views for explaining a manufacturing method of a display device according to a modified example of the first embodiment. [Figure 10] 10A and 10B are schematic partial end views illustrating a manufacturing method for a display device according to a modified example of the first embodiment, following FIG. 9B. [Figure 11] 11A and 11B are schematic partial end views illustrating a manufacturing method for a display device according to a modified example of the first embodiment, following FIG. 10B. [Figure 12] FIG. 12 is a schematic partial cross-sectional view of a display device according to the second embodiment. [Figure 13] 13A and 13B are schematic partial end views for explaining a manufacturing method of a display device according to the second embodiment. [Figure 14] 14A and 14B are schematic partial end views illustrating the manufacturing method of the display device according to the second embodiment, following FIG. 13B. [Figure 15] FIG. 15 is a schematic partial cross-sectional view of a display device according to a third embodiment. [Figure 16] 16A and 16B are schematic partial end views for explaining a manufacturing method of a display device according to the third embodiment. [Figure 17] 17A and 17B are schematic partial end views illustrating the manufacturing method of the display device according to the third embodiment, following FIG. 16B. [Figure 18] FIG. 18 is a schematic partial cross-sectional view of a display device according to a modified example of the third embodiment. [Figure 19] FIG. 19 is a schematic partial cross-sectional view of a display device according to a fourth embodiment. [Figure 20] 20A and 20B are schematic partial end views for explaining a manufacturing method of a display device according to a fourth embodiment. [Figure 21] 21A and 21B are schematic partial end views illustrating the manufacturing method of the display device according to the fourth embodiment, following FIG. 20B. [Figure 22] FIG. 22 is a schematic partial cross-sectional view of a display device according to a fifth embodiment. [Figure 23] 23A and 23B are schematic partial end views for explaining a manufacturing method of a display device according to a fifth embodiment. [Figure 24] FIG. 24 is a diagram showing the appearance of a lens-interchangeable single-lens reflex type digital still camera, with FIG. 24A showing a front view and FIG. 24B showing a rear view. [Diagram 25] FIG. 25 is an external view of a head mounted display. [Figure 26] FIG. 26 is an external view of a see-through head mounted display. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the present disclosure will be described based on the embodiments with reference to the drawings. The present disclosure is not limited to the embodiments, and various numerical values ​​and materials in the embodiments are examples. In the following description, the same elements or elements having the same functions will be designated by the same reference numerals, and duplicated descriptions will be omitted. The description will be given in the following order. 1. Description of the display device, the manufacturing method of the display device, and the electronic device in general according to the present disclosure 2. First embodiment and modifications 3. Second embodiment 4. Third embodiment 5. Fourth embodiment 6. Fifth embodiment and modifications 7. Description of Electronic Devices 8.Other

[0012] [General Description of Display Device, Display Device Manufacturing Method, and Electronic Device According to the Present Disclosure] As described above, in the display device according to the present disclosure, the display device obtained by the manufacturing method of the display device according to the present disclosure, and the display device used in the electronic device according to the present disclosure (hereinafter, these may be simply referred to as the "display device of the present disclosure"). A light-emitting section, which is formed by laminating a first electrode, an organic layer, and a second electrode, is arranged in a two-dimensional matrix on a substrate, The first electrode is provided for each light-emitting portion, A partition portion is formed between adjacent first electrodes, an organic layer and a second electrode are laminated on the entire surface including the first electrode and the partition wall; The partition has a light reflecting surface made of a metal layer, A recess is provided in the side surface of the partition wall on the first electrode side, facing inwardly of the partition wall.

[0013] In the display device of the present disclosure, the partition wall can be configured to include a base material made of an insulating material and having a recess provided therein, and a metal layer formed on the surface of the base material excluding the recess.

[0014] In the display device of the present disclosure including the above-described preferred configuration, the base material of the partition portion can be configured to comprise a lower layer portion composed of a first insulating material layer, and an upper layer portion composed of a second insulating material layer and having a shape protruding like an eave relative to the lower layer portion.

[0015] In the display device of the present disclosure including the various preferred configurations described above, the first electrode may be configured to be formed of the same metal layer as the metal layer of the partition wall. The metal layer may be formed of a single metal or an alloy of a metal such as Cr, Au, Pt, Ni, Cu, Mo, W, Ti, Ta, Al, Fe, or Ag, but is preferably configured to be made of any of aluminum, an aluminum alloy, and silver.

[0016] In the display device of the present disclosure including the various preferred configurations described above, the partition portion can be configured to include a substrate made of an insulating material, a metal layer formed on the surface of the substrate, and an inter-pixel insulating film formed on the surface of the metal layer, and the recess can be provided by removing the inter-pixel insulating film from a portion of the side of the partition portion facing the first electrode.

[0017] Alternatively, in the display device of the present disclosure, the partition wall can be configured to include a base material made of an insulating material and a metal layer formed on the upper portion of the base material and having a shape that protrudes from the base material like an eaves.

[0018] In this case, the metal layer may be formed of a single metal or an alloy such as Cr, Au, Pt, Ni, Cu, Mo, W, Ti, Ta, Al, Fe, or Ag, but is preferably formed of any of aluminum, aluminum alloys, and silver. A transparent conductive material layer may be formed on the surface of the metal layer of the partition. The first electrode may be covered with a transparent conductive material layer of the same layer as the transparent conductive material layer of the partition. The transparent conductive material layer may be formed of indium tin oxide or indium zinc oxide.

[0019] As described above, the manufacturing method of the display device according to the present disclosure includes: A method for manufacturing a display device in which light-emitting sections each having a first electrode, an organic layer, and a second electrode laminated thereon are arranged in a two-dimensional matrix on a substrate, the method comprising the steps of: A step of forming a first electrode corresponding to each light emitting portion; forming a partition wall portion in a region corresponding to a region between adjacent first electrodes; a step of laminating an organic layer and a second electrode on the entire surface including the first electrode and the partition wall; It has The step of forming the partition includes the steps of providing a recess facing the inside of the partition on a side surface of the partition on the first electrode side, and providing the partition with a light reflecting surface made of a metal layer.

[0020] In the manufacturing method of the display device according to the present disclosure, a first insulating material layer constituting a lower layer of the partition portion and a second insulating material layer constituting an upper layer having a shape protruding like an eave relative to the lower layer can be formed, thereby providing a recess facing toward the inside of the partition portion on the side surface of the first electrode side.

[0021] In this case, the step of forming the partition wall and the step of forming the first electrode are forming a first insulating material layer constituting a lower layer portion and a second insulating material layer constituting an upper layer portion having a shape protruding like an eaves from the lower layer portion in a region corresponding to a gap between adjacent first electrodes; a step of forming a metal layer on the entire surface, thereby forming a light reflecting surface made of the metal layer on the partition wall portion and forming a first electrode including the metal layer separated by an overhang of an upper layer portion; The above configuration can be adopted.

[0022] In this case, a step of laminating an organic layer on the entire surface may be performed in succession after a metal layer is formed on the entire surface. By forming an organic layer in succession after the formation of a metal layer, the organic layer can be formed without forming an oxide film on the surface of the first electrode.

[0023] Alternatively, in the manufacturing method of the display device according to the present disclosure, a first insulating material layer constituting the lower layer of the partition portion and a metal layer constituting the upper layer having a shape that protrudes like an eave from the lower layer portion can be formed, thereby providing a recess facing toward the inside of the partition portion on the side portion of the first electrode side.

[0024] In this case, the step of forming the partition wall and the step of forming the first electrode are forming a lower layer electrode in a region corresponding to the first electrode; Next, a step of forming a first insulating material layer constituting a lower layer portion between adjacent lower layer electrodes and a metal layer constituting an upper layer portion having a shape protruding like an eaves with respect to the lower layer portion; A step of forming a transparent conductive material layer on the entire surface including the partition wall portion, thereby forming a first electrode including the transparent conductive material layer separated by an overhang of an upper layer portion; The above configuration can be adopted.

[0025] In this case, a step of laminating an organic layer on the entire surface may be performed in succession after a transparent conductive material layer is formed on the entire surface. By forming the organic layer in succession after the transparent conductive material layer is formed, the organic layer can be formed in a state in which no oxide film is formed on the surface of the transparent conductive material layer.

[0026] Alternatively, in the method for manufacturing a display device according to the present disclosure, the partition portion can be formed from a substrate made of an insulating material, a metal layer formed on the surface of the substrate, and an inter-pixel insulating film formed on the surface of the metal layer, and then the inter-pixel insulating film on the side surface of the partition portion facing the first electrode can be removed to provide a recess toward the inside of the partition portion on the side surface of the partition portion facing the first electrode.

[0027] The insulating material constituting the partition is not particularly limited as long as it does not impede the implementation of the present disclosure. For example, inorganic materials such as silicon oxide, silicon nitride, and silicon oxynitride, and organic materials such as polyimide resin and acrylic resin can be used.

[0028] The base material of the partition portion can be formed using a material appropriately selected from known inorganic materials and organic materials, and can be formed, for example, by a combination of a known film formation method, such as a physical vapor deposition method (PVD method) exemplified by a vacuum deposition method or a sputtering method, or various chemical vapor deposition methods (CVD methods), and a known patterning method, such as an etching method or a lift-off method.

[0029] In the display device of the present disclosure, the light-emitting section can be configured as a so-called top-emitting type. The light-emitting section is configured by sandwiching an organic layer including a hole transport layer, a light-emitting layer, an electron transport layer, etc., between a first electrode and a second electrode. When the cathode is shared, the second electrode becomes a cathode electrode, and the first electrode becomes an anode electrode. In some cases, some or all of the organic layers may be painted separately for each pixel. Such a case also falls under [An organic layer is laminated on the entire surface including the first electrode and the partition wall].

[0030] It is preferable that a voltage equal to or lower than the threshold voltage of the light-emitting portion ELP is applied to the metal layer constituting the light-reflecting surface. For example, when the second electrode is a cathode electrode, the metal layer constituting the light-reflecting surface can be set to the same voltage as the cathode electrode. The wiring supplying the voltage to the metal layer constituting the light-reflecting surface may be connected between the pixels, or may be connected on the periphery of the display area.

[0031] The display device of the present disclosure including the above-mentioned preferred configuration may be configured as a so-called monochrome display or may be configured as a color display. In the case of a color display, the light-emitting color of the light-emitting unit itself may be a predetermined color such as red, green, or blue. Alternatively, the light-emitting color of the light-emitting unit may be white, but a color filter disposed above the light-emitting unit may be provided. The color filter may be formed using, for example, a resin material containing a pigment or a dye.

[0032] In the case of a color display configuration, one pixel may be configured to be composed of multiple subpixels, specifically, one pixel may be configured to be composed of three subpixels: a red display subpixel, a green display subpixel, and a blue display subpixel.Furthermore, a pixel may be configured to be composed of a set of these three types of subpixels plus one or more types of subpixels (for example, a set of subpixels that emit white light to improve luminance, a set of subpixels that emit complementary colors to expand the color reproduction range, a set of subpixels that emit yellow to expand the color reproduction range, and a set of subpixels that emit yellow and cyan to expand the color reproduction range).

[0033] Examples of pixel values ​​of the display device include VGA (640,480), S-VGA (800,600), XGA (1024,768), APRC (1152,900), S-XGA (1280,1024), U-XGA (1600,1200), HD-TV (1920,1080), Q-XGA (2048,1536), as well as (1920,1035), (720,480), (1280,960), and other image display resolutions, but are not limited to these values.

[0034] In the display device according to the present disclosure, the configuration of the driving circuit that controls the light emission of the light emitting unit is not particularly limited. The light emitting unit can be formed, for example, in a certain plane on a substrate, and can be arranged, for example, above the driving circuit that drives the light emitting unit via an interlayer insulating layer. The configuration of the transistor that constitutes the driving circuit is not particularly limited. It may be a p-channel type field effect transistor or an n-channel type field effect transistor.

[0035] Examples of materials for the substrate include semiconductor materials, glass materials, and plastic materials. When the driving circuit is configured with transistors formed on a semiconductor substrate, for example, a well region may be provided in a semiconductor substrate made of silicon, and the transistors may be formed in the well. On the other hand, when the driving circuit is configured with thin film transistors, the driving circuit can be formed by forming a semiconductor thin film on a substrate made of glass or plastic material. Various wirings can have well-known configurations and structures.

[0036] The first electrode is provided on the substrate for each light-emitting portion, and functions as an anode electrode of the light-emitting portion. The first electrode may be formed of, for example, a single metal or an alloy of metal such as Cr, Au, Pt, Ni, Cu, Mo, W, Ti, Ta, Al, Fe, or Ag, or may be formed by laminating a plurality of metal layers. In some cases, the first electrode may be formed as a transparent electrode using a transparent conductive material such as indium zinc oxide or indium tin oxide. In such a case, a light-reflecting layer made of a metal or an alloy may be provided between the first electrode and the substrate.

[0037] The organic layer includes an organic light-emitting material and is provided on the first electrode and the partition wall as a common continuous film. The organic layer emits light when a voltage is applied between the first electrode and the second electrode. The organic layer can be configured, for example, in a structure in which a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer are laminated in this order from the first electrode side. The hole transport material, the hole transport material, the electron transport material, and the organic light-emitting material that constitute the organic layer are not particularly limited, and well-known materials can be used.

[0038] The organic layer may have a so-called tandem structure in which a plurality of light-emitting layers are connected via a charge generating layer or an intermediate electrode. For example, a light-emitting portion that emits white light can be formed by stacking red, green, and blue light-emitting layers.

[0039] The second electrode is provided on the organic layer as a common continuous film. The second electrode can be formed using a material with high light transmittance. For example, the second electrode can be formed using a transparent conductive material such as indium tin oxide, indium zinc oxide, zinc oxide, aluminum-doped zinc oxide, or gallium-doped zinc oxide. Alternatively, the second electrode can be formed using a metal or an alloy, etc., thin enough to have light transmittance.

[0040] The protective layer and the filling layer are formed on the second electrode to prevent moisture and oxygen from penetrating into the organic layer. The protective layer and the filling layer can be made of a material that has high light transmittance and low water permeability, for example, silicon oxide (SiO x ), silicon nitride (SiN x ), aluminum oxide (AlO x ), a resin material such as an epoxy resin or an acrylic resin, or a combination thereof.

[0041] The various conditions in this specification are satisfied not only when they are strictly met, but also when they are substantially met. The presence of various variations in the display device due to design or manufacturing is permitted. Also, the figures used in the following explanation are schematic. For example, FIG. 2, which will be described later, shows the cross-sectional structure of the display device, but does not show the ratio of width, height, thickness, etc.

[0042] [First embodiment] The first embodiment relates to a display device, a manufacturing method for a display device, and an electronic device according to the present disclosure.

[0043] 1 is a schematic plan view of a display device according to a first embodiment of the present disclosure. The display device 1 is an active matrix type color display device that displays images and the like by controlling the emission of each of the light-emitting sections arranged in a two-dimensional matrix on a substrate. A plurality of light-emitting sections arranged on a plane constitute sub-pixels PX that display, for example, red, green, or blue, and these three sub-pixels PX constitute one pixel. A partition section 30, which will be described later, is provided between the pixels.

[0044] As shown in the figure, the subpixels PX are arranged in a delta configuration. The size of one pixel surrounded by a dashed line is, for example, 5 micrometers by 5 micrometers. In addition, in Figure 1, the red display subpixel is indicated by the symbol "R", the green display subpixel is indicated by the symbol "G", and the blue display subpixel is indicated by the symbol "B".

[0045] The sub-pixel PX or the light-emitting portion ELP shown in Fig. 2, which will be described later, has a circular planar shape. The arrangement of the sub-pixels PX is not limited to a delta arrangement. For example, it may be a so-called stripe arrangement.

[0046] In the display device according to this embodiment, the configurations of the drive circuit that controls the light emission of the sub-pixels PX, the power supply circuit that supplies power to the sub-pixels PX, and the like are not particularly limited, and therefore illustrations and specific descriptions thereof will be omitted.

[0047] FIG. 2 is a schematic partial cross-sectional view of the display device according to the first embodiment.

[0048] In the display device 1, light-emitting sections ELP, each of which is formed by stacking a first electrode 20, an organic layer 50, and a second electrode 60, are arranged in a two-dimensional matrix on a substrate 10. A first electrode 20 is provided for each light-emitting section ELP. A partition section 30 is formed between adjacent first electrodes 20, and an organic layer 50 and a second electrode 60 are stacked on the entire surface including the first electrode 20 and the partition section 30. A protective layer 70 and a filling layer 80 are sequentially formed on the entire surface including the second electrode 60, and a color filter 90 corresponding to the color to be displayed is formed thereon. The partition section 30 has a light-reflecting surface RS made of a metal layer 32. A recess GP is provided on the side surface of the partition section 30 on the first electrode 20 side, facing the inside of the partition section 30. This is similar to other embodiments described later.

[0049] In the first embodiment, the partition portion 30 is composed of a base material 31 made of an insulating material and having a recess GP, and a metal layer 32 formed on the surface of the base material 31 excluding the recess GP.

[0050] The substrate 10 is a support that supports a plurality of light-emitting portions ELP arranged on one surface. Although not shown, the substrate 10 is provided with a drive circuit for controlling the light emission of the light-emitting portions ELP, a power supply circuit for supplying power, scanning lines, data lines, and the like. The substrate 10 is formed of, for example, a semiconductor material that makes it easy to form transistors and the like.

[0051] The first electrode 20 is made of, for example, an aluminum copper alloy (AlCu) and is provided for each light emitting portion ELP. The first electrode 20 functions as an anode electrode of the light emitting portion ELP. The partition portions 30 are provided between adjacent first electrodes 20 and separate the light emitting portions ELP from each other. The cross-sectional shape of the partition portions 30 is a substantially trapezoidal shape (tapered shape) having an inclined surface. Between the partition portions 30, a substantially circular opening is formed, with the first electrode 20 side as the bottom and the opposite side open.

[0052] An organic layer 50 and a second electrode 60 are laminated on the entire surface including the first electrode 20 and the partition portion 30. The light-emitting portion ELP is configured by sandwiching the organic layer 50, which includes a hole transport layer, a light-emitting layer, an electron transport layer, etc., between the first electrode 20 and the second electrode 60. A protective layer 70 is laminated on the second electrode 60 to prevent the penetration of moisture into the light-emitting portion ELP.

[0053] The organic layer 50 has a multi-layer structure, but is shown as one layer in the drawing. The organic layer 50 has a structure in which a red light-emitting layer, a green light-emitting layer, a blue light-emitting layer, etc. are laminated, and emits white light.

[0054] A filling layer 80 is formed on the protective layer 70, and recesses between the partition walls 30 are filled with the filling layer 80. A color filter 90 corresponding to the color to be displayed is provided on the filling layer 80. Furthermore, a transparent opposing substrate (not shown) may be disposed.

[0055] As described above, the recess GP is provided in the side surface of the partition 30 facing the first electrode 20. The height and width of the recess GP are generally set to about 10% to 100% of the film thickness of the organic layer 50, and are, for example, about 30 nanometers.

[0056] Since a gap is provided by the recess GP between the light reflecting surface RS or the end of the base material 31 and the first electrode 20, it is possible to prevent the charge injected from the first electrode 20 from leaking to the adjacent first electrode 20 through the surface of the partition section 30 and to prevent the organic layer 50 from emitting abnormal light at the end of the partition section 30. In addition, a part of the light incident on the recess GP can be reflected and extracted to the outside, improving the luminous efficiency.

[0057] In order to improve contrast, a light-shielding layer constituting, for example, a so-called black matrix may be provided. The light-shielding layer may be made of, for example, chromium (Cr) or graphite. The light-shielding layer may be formed in the same layer as the color filter 90, or may be formed in a layer different from the color filter 90.

[0058] In order to further improve the light emission efficiency, a microlens for collecting light may be disposed above the light emitting part. The shape of the microlens is not particularly limited, and may be, for example, a hemispherical or cylindrical shape.

[0059] Next, a method for manufacturing the display device 1 will be described.

[0060] As will be described in detail below, the method for manufacturing the display device 1 includes the steps of: A step of forming a first electrode corresponding to each light emitting portion; forming a partition wall portion in a region corresponding to a region between adjacent first electrodes; a step of laminating an organic layer and a second electrode on the entire surface including the first electrode and the partition wall; The step of forming the partition wall includes a step of providing a recess facing the inside of the partition wall on a side surface of the partition wall on the first electrode side, and a step of providing a light reflecting surface made of a metal layer on the partition wall. This is the same as in other embodiments described later.

[0061] 3 to 7 are schematic partial end views for explaining the manufacturing method of the display device according to the first embodiment.

[0062] [Step-100] (see Figures 3A, 3B and 3C) First, the first electrode 20 is formed on the substrate 10. Specifically, the substrate 10 is prepared (see FIG. 3A), and a metal material layer 20A made of, for example, an aluminum copper alloy (AlCu) is formed thereon (see FIG. 3B). Next, the portion corresponding to the first electrode 20 is covered with a mask and etched to obtain the first electrode 20 (see FIG. 3C).

[0063] [Step-110] (see Fig. 4A, Fig. 4B, Fig. 5A, Fig. 5B, Fig. 6A and Fig. 6B) Thereafter, the partition wall 30 is formed on the substrate 10. First, an insulating material layer 31A is formed on the entire surface of the substrate 10 including the first electrodes 20 (see FIG. 4A). Next, the portion corresponding to the base material 31 is covered with a mask and etched to form the base material 31 (see FIG. 4B). Note that this etching is performed so that the first electrodes 20 between the base materials 31 are exposed.

[0064] Thereafter, the exposed portion of the first electrode 20 is covered with an insulating material layer 39 made of the same material as the base material 31 (see FIG. 5A), and then a metal material layer 32A is formed on the entire surface (see FIG. 5B). Next, the metal material layer 32A on the insulating material layer 39 is removed, and a metal layer 32 is formed on the base material 31 (FIG. 6A). Thereafter, the insulating material layer 39 is removed by etching. Since the metal layer 32 is not formed on the side surface of the base material 31 facing the first electrode 20, a recess GP is formed in the base material 31 by this etching process (see FIG. 6B).

[0065] [Step-120] (See Figures 7A and 7B) Next, the organic layer 50 is formed on the entire surface (see FIG. 7A), and then the second electrode 60 is formed (see FIG. 7B).

[0066] [Step-130] (See Figure 2) Thereafter, the protective layer 70 and the filling layer 80 are formed in this order, and then the color filter 90 is disposed, thereby completing the display device 1.

[0067] The method for manufacturing the display device 1 according to the first embodiment has been described above.

[0068] Next, a modification of the display device according to the first embodiment will be described.

[0069] 8 is a schematic partial cross-sectional view of a display device according to a modification of the first embodiment. The schematic plan view of the display device 1A according to the modification can be obtained by replacing the display device 1 in FIG.

[0070] In the display device 1A, light-emitting sections ELP, each of which is formed by laminating a first electrode 20, an organic layer 50, and a second electrode 60, are arranged in a two-dimensional matrix on a substrate 10. A first electrode 20 is provided for each light-emitting section ELP. A partition section 130 is formed between adjacent first electrodes 20, and an organic layer 50 and a second electrode 60 are laminated on the entire surface including on the first electrode 20 and the partition section 130. A protective layer 70 and a filling layer 80 are sequentially formed on the entire surface including on the second electrode 60, and a color filter 90 corresponding to the color to be displayed is formed thereon.

[0071] In the display device 1A, the partition section 130 is composed of a base material 131 made of an insulating material, and a metal layer 132 formed on the upper part of the base material 131 and projecting like an eaves from the base material 131. In the display device 1A, the inclined surface of the metal layer 132 forms a light reflecting surface RS. Similarly to the display device 1, a recess GP facing the inside of the partition section 130 is provided in a portion of the side surface of the partition section 130 on the first electrode 20 side.

[0072] Since the recess GP provides a gap, it is possible to prevent the charge injected from the first electrode 20 from leaking to the adjacent first electrode 20 through the surface of the partition 130 and to prevent the organic layer 50 from emitting abnormal light at the end of the partition 130, as described in the display device 1. In addition, it is possible to reflect a part of the light incident on the recess GP and extract it to the outside, thereby improving the light emission efficiency.

[0073] Next, a method for manufacturing the display device 1A will be described.

[0074] 9 to 11 are schematic partial end views for explaining a manufacturing method of the display device 1A.

[0075] [Process-100A] A step similar to [Step-100] described in the first embodiment is carried out to form a first electrode 20 on a substrate 10 (see the previous FIG. 3C).

[0076] [Step-110A] (see Figures 9A, 9B, 10A, 10B and 11A) Thereafter, the partition wall 130 is formed on the substrate 10. First, an insulating material layer 131A is formed on the entire surface of the substrate 10 including the first electrode 20 (see FIG. 9A). Next, the insulating material layer 131A is planarized and thinned by, for example, CMP (see FIG. 9B).

[0077] Thereafter, a metal material layer 132A is formed on the entire surface (see FIG. 10A), and then the portion corresponding to the metal layer 132 is covered with a mask and etched to form the metal layer 132 (see FIG. 10B). Note that this etching is performed so that the first electrode 20 side of the metal layer 132 has an overhanging shape.

[0078] Thereafter, etching is performed using the metal layer 132 as a mask to remove the insulating material layer 131A. Through this process, a recess GP is formed in the base material 131 (see FIG. 11A).

[0079] [Step-120A] (see FIG. 11B) Next, the organic layer 50 is formed on the entire surface, and then the second electrode 60 is formed.

[0080] [Process-130A] Next, a protective layer 70 and a filling layer 80 are formed in this order, and then a color filter 90 is disposed, thereby obtaining the display device 1A.

[0081] [Second embodiment] The second embodiment also relates to a display device, a manufacturing method for a display device, and an electronic device according to the present disclosure.

[0082] In the second embodiment, the partition wall is composed of a base material made of an insulating material, a metal layer formed on the surface of the base material, and an inter-pixel insulating film formed on the surface of the metal layer. The recess is provided by removing the inter-pixel insulating film from the side of the partition wall on the first electrode side. Except for the above points, the configuration is the same as that of the first embodiment.

[0083] 12 is a schematic partial cross-sectional view of a display device according to a second embodiment. The schematic plan view of the display device 2 according to the second embodiment can be obtained by replacing the display device 1 in FIG.

[0084] In the display device 2, light-emitting sections ELP, each of which is formed by laminating a first electrode 20, an organic layer 50, and a second electrode 60, are arranged in a two-dimensional matrix on the substrate 10. A first electrode 20 is provided for each light-emitting section ELP. A partition section 230 is formed between adjacent first electrodes 20, and an organic layer 50 and a second electrode 60 are laminated on the entire surface including on the first electrode 20 and the partition section 230. A protective layer 70 and a filling layer 80 are sequentially formed on the entire surface including on the second electrode 60, and a color filter 90 corresponding to the color to be displayed is formed thereon.

[0085] In the display device 2, the partition section 230 is composed of a base material 31 made of an insulating material, a metal layer 32 formed on the surface of the base material 31, and an inter-pixel insulating film 233 formed on the surface of the metal layer 32. The recess GP is provided by removing the inter-pixel insulating film 233 from a portion of the side surface of the partition section 230 facing the first electrode 20. Except for the above points, the configuration is the same as that of the first embodiment.

[0086] Since the recess GP provides a gap, it is possible to prevent the charge injected from the first electrode 20 from leaking to the adjacent first electrode 20 through the surface of the partition 230 and to prevent the organic layer 50 from emitting abnormal light at the end of the partition 230, as described in the display device 1. In addition, it is possible to reflect a part of the light incident on the recess GP and extract it to the outside, thereby improving the light emission efficiency.

[0087] Next, a method for manufacturing the display device 2 will be described.

[0088] 13 and 14 are schematic partial end views for illustrating a manufacturing method of the display device 2. FIG.

[0089] [Process-200] In [Step-100] described in the first embodiment, the steps shown in Figs. 3A to 5B are carried out.

[0090] [Step-210] (see Figures 13A, 13B, 14A and 14B) Next, the portion corresponding to the metal layer 32 is covered with a mask and etched to form the metal layer 32 and remove the insulating material layer 39 (see FIG. 13A).

[0091] Thereafter, an insulating material film 233A is formed on the entire surface (see FIG. 13B). Next, etching is performed so as to leave the insulating material film 233A covering the base material 31 and the metal layer 33, thereby forming an inter-pixel insulating film 233 (see FIG. 14A). Thereafter, the inter-pixel insulating film 233 is etched to thin the entire film. This process removes the inter-pixel insulating film 233 from the side surface of the partition portion 230 on the first electrode 20 side, thereby forming a recess GP.

[0092] [Process-220] Next, the same steps as [Step-120] and [Step-130] described in the first embodiment are performed, whereby the display device 2 can be obtained.

[0093] [Third embodiment] The third embodiment also relates to a display device, a manufacturing method for a display device, and an electronic device according to the present disclosure.

[0094] As in the first embodiment, the partition wall in the third embodiment is composed of a substrate made of an insulating material and having a recess, and a metal layer formed on the surface of the substrate excluding the recess. However, the substrate of the partition wall is composed of a lower layer made of a first insulating material layer, and an upper layer made of a second insulating material layer and having a shape that protrudes like an eaves from the lower layer. Also, the first electrode is formed of a metal layer in the same layer as the metal layer of the partition wall. Except for the above points, the configuration is the same as that of the first embodiment.

[0095] 15 is a schematic partial cross-sectional view of a display device according to embodiment 3. The schematic plan view of the display device 3 according to embodiment 3 can be obtained by replacing the display device 1 in FIG.

[0096] In the display device 3, light-emitting sections ELP, each of which is formed by laminating a first electrode 320, an organic layer 50, and a second electrode 60, are arranged in a two-dimensional matrix on the substrate 10. A first electrode 320 is provided for each light-emitting section ELP. A partition section 330 is formed between adjacent first electrodes 20, and an organic layer 50 and a second electrode 60 are laminated on the entire surface including on the first electrode 320 and the partition section 330. A protective layer 70 and a filling layer 80 are sequentially formed on the entire surface including on the second electrode 60, and a color filter 90 corresponding to the color to be displayed is formed thereon.

[0097] In the display device 3 as well, the partition wall 330 is made of a base material 331 made of an insulating material and provided with a recess GP, and a metal layer 332 formed on the surface of the base material 331 excluding the recess GP. However, the base material 331 of the partition wall 330 is made of a lower layer 331B made of a first insulating material layer, and an upper layer 331T made of a second insulating material layer and shaped to protrude like an eaves from the lower layer 331B. Furthermore, the first electrode 320 is formed of a metal layer in the same layer as the metal layer 332 of the partition wall 330.

[0098] Since the recess GP provides a gap, it is possible to prevent the charge injected from the first electrode 320 from leaking to the adjacent first electrode 320 through the surface of the partition 330 and to prevent the organic layer 50 from emitting abnormal light at the end of the partition 330, as described in the display device 1. In addition, it is possible to reflect a part of the light incident on the recess GP and extract it to the outside, thereby improving the light emission efficiency.

[0099] Next, a method for manufacturing the display device 3 will be described.

[0100] 16 and 17 are schematic partial end views for illustrating a manufacturing method of the display device 3. FIG.

[0101] As will be described in detail below, in the manufacturing method of the display device 3, a lower layer portion 331B of the partition portion 330 and an upper layer portion 331T having a shape that protrudes like an eave relative to the lower layer portion 331B are formed, thereby providing a recess GP facing the inside of the partition portion 330 on the side portion of the partition portion 330 facing the first electrode 320.

[0102] Then, the process of forming the partition wall 330 and the process of forming the first electrode 320 are performed as follows: forming a first insulating material layer constituting the lower layer portion 331B and a second insulating material layer constituting the upper layer portion 331T having a shape protruding like an eaves from the lower layer portion 331B in a region corresponding to a gap between adjacent first electrodes 320; a step of forming a metal layer 332 on the entire surface, thereby forming a light reflecting surface RS made of the metal layer 332 on the partition wall portion 330, and forming a first electrode 320 including the metal layer 332 separated by an overhang of the upper layer portion 331T; This is done by.

[0103] In addition, after the metal layer 332 is formed on the entire surface, a process of laminating the organic layer 50 on the entire surface is continuously performed.

[0104] [Step-300] (see Figures 16A and 16B) First, the base material 331 of the partition wall portion 330 is formed on the substrate 10. Specifically, the substrate 10 is prepared (see FIG. 3A), and the first insulating material layer 331B and the second insulating material layer 331T are sequentially laminated thereon. Next, a mask is placed on the portion corresponding to the partition wall portion 330, and an etching process is performed. Note that, during the etching process, the process is performed so that the upper side of the insulating material layer 331B is etched more (see FIG. 16A). Subsequently, the first insulating material layer 331B is selectively etched to form the first insulating material layer constituting the lower layer portion 331B and the second insulating material layer constituting the upper layer portion 331T having a shape protruding like an eaves with respect to the lower layer portion 331B (see FIG. 16B).

[0105] [Step-310] (See Figures 17A and 17B) Thereafter, a metal layer 332 is formed on the entire surface. By setting the thickness of the metal layer 332 to be thinner than that of the first insulating material layer 331B, the metal layer 332 is divided at the eaves portion of the second insulating material layer 331T (see FIG. 17A). The metal layer 332 on the base material 331 forms a light reflecting surface RS made of the metal layer 332. In addition, the first electrode 320 is formed by the divided metal layer 332.

[0106] Next, a process of continuously laminating an organic layer 50 on the entire surface is performed, and then a second electrode 60 is formed (see FIG. 17B). Since the metal layer 332 and the organic layer 50 are continuously formed, an oxide film or the like is not formed at the interface between the metal layer 332 and the organic layer 50. This can improve the light emitting characteristics of the light emitting portion ELP. In order to prevent the organic layer 50 from being divided by the eaves of the upper layer portion 331T, the sum of the film thicknesses of the metal layer 332 and the organic layer 50 should be made to exceed the film thickness of the first insulating material layer 331B.

[0107] [Process-320] Thereafter, a protective layer 70 and a filling layer 80 are formed in this order, and then a color filter 90 is disposed, thereby completing the display device 3.

[0108] The method for manufacturing the display device 3 according to the third embodiment has been described above.

[0109] Next, a modification of the display device according to the third embodiment will be described.

[0110] 18 is a schematic partial cross-sectional view of a display device according to a modification of the third embodiment. The schematic plan view of a display device 3A according to the modification can be obtained by replacing the display device 1 in FIG.

[0111] In the display device 3A, the first insulating material layer constituting the lower layer portion 331B and the second insulating material layer constituting the upper layer portion 331T are each formed to have an inverse tapered shape. Even in this configuration, the partition portion 330 is composed of a base material 331 made of an insulating material and having a recess GP, and a metal layer 332 formed on the surface of the base material 331 excluding the recess GP. The manufacturing method of the display device 3A is the same as that of the display device 3, except that the first insulating material layer 331B is etched into an inverse tapered shape, and therefore a description thereof will be omitted.

[0112] [Fourth embodiment] The fourth embodiment also relates to a display device, a manufacturing method for a display device, and an electronic device according to the present disclosure.

[0113] 19 is a schematic partial cross-sectional view of a display device according to embodiment 4. The schematic plan view of the display device 4 according to embodiment 4 can be obtained by replacing the display device 1 in FIG.

[0114] In the third embodiment, the first electrode 320 is formed by a divided metal layer 332. In the fourth embodiment, the first electrode 420 is formed by laminating a divided metal layer 332 on a lower electrode 421 provided in advance on a substrate, which is different from the third embodiment. Apart from the above differences, the other configurations are the same as those described in the display device 3.

[0115] Next, a method for manufacturing the display device 4 will be described.

[0116] 20 and 21 are schematic partial end views for illustrating a manufacturing method of the display device 4. FIG.

[0117] [Step-400] (see Figure 20A) First, a lower layer electrode 421 is formed on a portion of the substrate 10 corresponding to the light emitting portion ELP. The lower layer electrode 421 is formed so as to cover a contact portion (not shown) provided on the substrate 10. This can reliably ensure connection with a drive circuit for the light emitting portion ELP.

[0118] [Step-410] (see Figure 20B) Next, a base material 331 of the partition wall portion 330 is formed on the substrate 10. Basically, a process similar to [Step-300] described in the third embodiment is performed to form a first insulating material layer constituting the lower layer portion 331B and a second insulating material layer constituting the upper layer portion 331T having a shape protruding like an eaves with respect to the lower layer portion 331B.

[0119] [Step-420] (see Figure 21A) Thereafter, a metal layer 332 is formed on the entire surface. By setting the thickness of the metal layer 332 to be thinner than that of the first insulating material layer 331B, the metal layer 332 is divided at the eaves portion of the second insulating material layer 331T. The metal layer 332 on the base material 331 forms a light reflecting surface RS made of the metal layer 332. In addition, the first electrode 420 is formed by the metal layer 332 divided from the lower electrode 421.

[0120] [Step-430] (see Figure 21B) Next, a process of continuously laminating an organic layer 50 on the entire surface is performed, and then a second electrode 60 is formed. Since the metal layer 332 and the organic layer 50 are continuously formed, an oxide film or the like is not formed at the interface between the metal layer 332 and the organic layer 50. This can improve the light emitting characteristics of the light emitting portion ELP. In order to prevent the organic layer 50 from being divided by the eaves of the upper layer portion 331T, the sum of the film thicknesses of the metal layer 332 and the organic layer 50 should be made to exceed the film thickness of the first insulating material layer 331B.

[0121] [Process-440] Thereafter, a protective layer 70 and a filling layer 80 are formed in this order, and then a color filter 90 is disposed, thereby completing the display device 4.

[0122] [Fifth embodiment] The fifth embodiment also relates to a display device, a manufacturing method for a display device, and an electronic device according to the present disclosure.

[0123] 22 is a schematic partial cross-sectional view of a display device according to embodiment 5. The schematic plan view of the display device 5 according to embodiment 5 can be obtained by replacing the display device 1 in FIG.

[0124] In the fifth embodiment, the partition section 530 is composed of a base material 531 made of an insulating material, and a metal layer 532 formed on the upper part of the base material 531 and projecting like an eaves from the base material 531. A transparent conductive material layer 533 is formed on the surface of the metal layer 532 of the partition section 530. The first electrode 520 is covered with a transparent conductive material layer in the same layer as the transparent conductive material layer 533 of the partition section 530.

[0125] Next, a method for manufacturing the display device 5 will be described.

[0126] FIG. 23 is a schematic partial end view for illustrating a manufacturing method of display device 5. As shown in FIG.

[0127] As will be described in detail below, in the manufacturing method of display device 5, a first insulating material layer constituting a lower layer of the partition portion and a metal layer constituting an upper layer having a shape that protrudes like an eave from the lower layer portion are formed, thereby providing a recess facing toward the inside of the partition portion on the side portion of the first electrode side.

[0128] Then, the process of forming the partition wall 530 and the process of forming the first electrode 520 are forming a lower electrode 421 in an area corresponding to a first electrode 520; Next, a step of forming a first insulating material layer 531 constituting a lower layer portion between adjacent lower layer electrodes 421 and a metal layer 532 constituting an upper layer portion having a shape protruding like an eaves with respect to the lower layer portion; A process of forming a transparent conductive material layer 533 on the entire surface including the partition wall 530, thereby forming a first electrode 520 including the transparent conductive material layer 533 divided by the eaves of the upper metal layer 532; This is done by.

[0129] [Step-500] (see Figure 23A). First, a lower layer electrode 421 is formed on a portion of the substrate 10 corresponding to the light emitting portion ELP. Basically, the same process as [Step-400] in the fourth embodiment is performed. Next, a partition portion 530 is formed on the substrate 10. A process similar to [Step-300] described in the third embodiment is performed except that the upper layer portion 532 is made of a metal material, and a first insulating material layer constituting the lower layer portion 531 and a metal layer constituting the upper layer portion 532 having a shape protruding like an eaves from the lower layer portion 531 are formed. The light reflecting surface RS is formed by the inclined surface of the metal layer 532.

[0130] [Step-510] (see Figure 23B) Thereafter, a transparent conductive material layer 533 made of, for example, indium tin oxide is formed on the entire surface. By setting the thickness of the transparent conductive material layer 533 to be thinner than the first insulating material layer 531, the transparent conductive material layer 533 is divided at the eaves portion of the metal layer 532. The first electrode 520 is formed by the transparent conductive material layer 533 divided from the lower electrode 421.

[0131] [Process-520] Next, a process of continuously laminating the organic layer 50 on the entire surface is performed, and then the second electrode 60 is formed. Since the transparent conductive material layer 533 and the organic layer 50 are continuously formed, an oxide film or the like is not formed at the interface between the transparent conductive material layer 533 and the organic layer 50. This can improve the light emitting characteristics of the light emitting section ELP. In order to prevent the organic layer 50 from being divided by the eaves of the metal layer 532, the sum of the film thicknesses of the transparent conductive material layer 533 and the organic layer 50 should be made to exceed the film thickness of the lower layer section 531.

[0132] [Process-530] Thereafter, the display device 5 can be obtained by carrying out the steps [Step 430] and [Step 440] described in the fourth embodiment.

[0133] Although the embodiments of the present disclosure have been specifically described above, the present disclosure is not limited to the above-described embodiments, and various modifications based on the technical ideas of the present disclosure are possible. For example, the numerical values, structures, processes, etc. given in the above-described embodiments are merely examples, and numerical values, structures, processes, etc. different from these may be used as necessary.

[0134] For example, even in a configuration in which the metal layer of the partition is omitted and light is totally reflected at the interface by utilizing the refractive index difference between the insulating material of the partition and the organic layer formed on top of it, by providing a recess in the side portion of the partition on the first electrode side, it is possible to improve the light extraction efficiency and reduce leakage between adjacent pixels.

[0135] The effects described in this specification are merely examples and are not limiting, and other effects may also be obtained.

[0136] [Electronic device description] The display device of the present disclosure described above can be used as a display unit (display unit) of electronic devices in various fields that displays a video signal input to the electronic device or a video signal generated within the electronic device as an image or video. For example, it can be used as a display unit of a television set, a digital still camera, a notebook personal computer, a portable terminal device such as a mobile phone, a video camera, a head-mounted display, etc.

[0137] The display device of the present disclosure also includes a sealed module. An example of the display device is a display module formed by attaching a counter part such as transparent glass to a pixel array part. The display module may be provided with a circuit part or a flexible printed circuit (FPC) for inputting and outputting signals from the outside to the pixel array part. Below, a digital still camera and a head mounted display are given as specific examples of electronic devices using the display device of the present disclosure. However, the specific examples given here are merely examples and are not limited thereto.

[0138] (Example 1) Fig. 24 is an external view of a lens-interchangeable single-lens reflex type digital still camera, with Fig. 24A showing a front view and Fig. 24B showing a rear view. A lens-interchangeable single-lens reflex type digital still camera has, for example, an interchangeable taking lens unit (interchangeable lens) 712 on the right side of the front of a camera main body (camera body) 711, and a grip part 713 for the photographer to hold on the left side of the front.

[0139] A monitor 714 is provided at approximately the center of the back surface of the camera body 711. A viewfinder (eyepiece window) 715 is provided above the monitor 714. By looking through the viewfinder 715, the photographer can visually confirm the optical image of the subject guided by the photographing lens unit 712 and determine the composition.

[0140] In the lens-interchangeable single-lens reflex type digital still camera having the above configuration, the display device of the present disclosure can be used as the viewfinder 715. That is, the lens-interchangeable single-lens reflex type digital still camera according to this example is produced by using the display device of the present disclosure as the viewfinder 715.

[0141] (Example 2) 25 is an external view of a head mounted display. The head mounted display has, for example, ear hooks 812 on both sides of a glasses-shaped display unit 811 for wearing on the user's head. In this head mounted display, the display device of the present disclosure can be used as the display unit 811. That is, the head mounted display according to this example is produced by using the display device of the present disclosure as the display unit 811.

[0142] (Example 3) 26 is an external view of the see-through head mounted display 911. The see-through head mounted display 911 is composed of a main body 912, an arm 913, and a lens barrel 914.

[0143] The main body 912 is connected to the arm 913 and the glasses 900. Specifically, an end of the long side of the main body 912 is coupled to the arm 913, and one side of the main body 912 is connected to the glasses 900 via a connecting member. The main body 912 may be directly attached to the head of the human body.

[0144] The main body 912 incorporates a control board for controlling the operation of the see-through head mounted display 911 and a display unit. The arm 913 connects the main body 912 and the lens barrel 914 and supports the lens barrel 914. Specifically, the arm 913 is coupled to an end of the main body 912 and an end of the lens barrel 914, respectively, and fixes the lens barrel 914. The arm 913 also incorporates a signal line for communicating data related to an image provided from the main body 912 to the lens barrel 914.

[0145] The lens barrel 914 projects image light provided from the main body 912 via the arm 913 through an eyepiece lens toward the eyes of a user wearing the see-through head mounted display 911. In this see-through head mounted display 911, the display unit of the main body 912 can use the display device of the present disclosure.

[0146] [others] The technology of the present disclosure can also be configured as follows.

[0147] [A1] A light-emitting section, which is formed by laminating a first electrode, an organic layer, and a second electrode, is arranged in a two-dimensional matrix on a substrate, The first electrode is provided for each light-emitting portion, A partition wall is formed between adjacent first electrodes, an organic layer and a second electrode are laminated on the entire surface including the first electrode and the partition wall; The partition has a light reflecting surface made of a metal layer, A recess is provided on a side surface of the partition wall on the first electrode side, the recess being directed toward the inside of the partition wall. Display device. [A2] The partition portion includes a base material made of an insulating material and having a recessed portion, and a metal layer formed on the surface of the base material excluding the recessed portion. The display device according to the above [A1]. [A3] The base material of the partition wall portion is composed of a lower layer portion made of a first insulating material layer and an upper layer portion made of a second insulating material layer and having a shape protruding like an eaves from the lower layer portion. The display device according to the above [A2]. [A4] The first electrode is formed of a metal layer that is the same layer as the metal layer of the partition wall. The display device according to the above [A2] or [A3]. [A5] The metal layer is made of any one of aluminum, an aluminum alloy, and silver. The display device according to any one of [A2] to [A4] above. [A6] the partition wall portion includes a base material made of an insulating material, a metal layer formed on a surface of the base material, and an inter-pixel insulating film formed on the surface of the metal layer; the recess is provided by removing the inter-pixel insulating film from a portion of the side surface of the partition wall on the first electrode side; The display device according to the above [A2]. [A7] The partition wall portion is composed of a base material made of an insulating material and a metal layer formed on the upper portion of the base material and having a shape protruding from the base material like an eaves. The display device according to the above [A1]. [A8] The metal layer is made of any one of aluminum, an aluminum alloy, and silver. The display device according to the above [A7]. [A9] a transparent conductive material layer is formed on the surface of the metal layer of the partition wall; The display device according to the above [A7] or [A8]. [A10] The first electrode is covered with a transparent conductive material layer in the same layer as the transparent conductive material layer of the partition wall. The display device according to the above [A9]. [A11] The transparent conductive material layer is made of indium tin oxide or indium zinc oxide; The display device according to the above [A9] or [A10].

[0148] [B1] A method for manufacturing a display device in which light-emitting sections each having a first electrode, an organic layer, and a second electrode laminated thereon are arranged in a two-dimensional matrix on a substrate, the method comprising the steps of: A step of forming a first electrode corresponding to each light emitting portion; forming a partition wall portion in a region corresponding to a region between adjacent first electrodes; a step of laminating an organic layer and a second electrode on the entire surface including the first electrode and the partition wall; It has the step of forming the partition portion includes a step of providing a recess facing the inside of the partition portion on a side surface of the partition portion on the first electrode side, and a step of providing a light reflecting surface made of a metal layer on the partition portion. A method for manufacturing a display device. [B2] a first insulating material layer constituting a lower layer of the partition wall and a second insulating material layer constituting an upper layer having a shape protruding like an eaves from the lower layer, thereby providing a recess facing the inside of the partition wall on a side surface of the partition wall on the first electrode side; A method for producing the display device according to the above [B1]. [B3] A step of forming a partition portion and a step of forming a first electrode forming a first insulating material layer constituting a lower layer portion and a second insulating material layer constituting an upper layer portion having a shape protruding like an eaves from the lower layer portion in a region corresponding to a gap between adjacent first electrodes; a step of forming a metal layer on the entire surface, thereby forming a light reflecting surface made of the metal layer on the partition wall portion and forming a first electrode including the metal layer separated by an overhang of an upper layer portion; By A method for producing the display device according to [B2] above. [B4] After forming a metal layer on the entire surface, a step of laminating an organic layer on the entire surface is successively performed. A method for manufacturing the display device according to the above [B3]. [B5] a first insulating material layer constituting a lower layer of the partition wall and a metal layer constituting an upper layer having a shape protruding like an eaves from the lower layer, thereby providing a recess facing the inside of the partition wall on a side surface of the partition wall on the first electrode side; A method for producing the display device according to the above [B1]. [B6] A step of forming a partition portion and a step of forming a first electrode forming a lower layer electrode in a region corresponding to the first electrode; Next, a step of forming a first insulating material layer constituting a lower layer portion between adjacent lower layer electrodes and a metal layer constituting an upper layer portion having a shape protruding like an eaves with respect to the lower layer portion; A step of forming a transparent conductive material layer on the entire surface including the partition wall portion, thereby forming a first electrode including the transparent conductive material layer separated by an overhang of an upper layer portion; By A method for producing the display device according to [B5] above. [B7] A step of forming a transparent conductive material layer on the entire surface and then laminating an organic layer on the entire surface is performed successively. A method for manufacturing the display device according to [B6] above. [B8] forming a partition portion from a base material made of an insulating material, a metal layer formed on the surface of the base material, and an inter-pixel insulating film formed on the surface of the metal layer, and then removing the inter-pixel insulating film on a side surface of the partition portion on the first electrode side, thereby providing a recessed portion facing the inside of the partition portion on the side surface of the partition portion on the first electrode side; A method for producing the display device according to the above [B1].

[0149] [C1] A light-emitting section, which is formed by laminating a first electrode, an organic layer, and a second electrode, is arranged in a two-dimensional matrix on a substrate, The first electrode is provided for each light-emitting portion, A partition wall is formed between adjacent first electrodes, an organic layer and a second electrode are laminated on the entire surface including the first electrode and the partition wall; The partition has a light reflecting surface made of a metal layer, A recess is provided on a side surface of the partition wall on the first electrode side, the recess being directed toward the inside of the partition wall. An electronic device equipped with a display device. [C2] The partition portion includes a base material made of an insulating material and having a recessed portion, and a metal layer formed on the surface of the base material excluding the recessed portion. The electronic device according to [C1] above. [C3] The base material of the partition wall portion is composed of a lower layer portion made of a first insulating material layer, and an upper layer portion made of a second insulating material layer and having a shape protruding like an eaves from the lower layer portion. The electronic device described in [C2] above. [C4] The first electrode is formed of a metal layer that is the same layer as the metal layer of the partition portion. The electronic device according to [C2] or [C3] above. [C5] The metal layer is made of any one of aluminum, an aluminum alloy, and silver. An electronic device according to any one of [C2] to [C4] above. [C6] the partition wall portion includes a base material made of an insulating material, a metal layer formed on a surface of the base material, and an inter-pixel insulating film formed on the surface of the metal layer; the recess is provided by removing the inter-pixel insulating film from a portion of the side surface of the partition wall on the first electrode side; The electronic device described in [C2] above. [C7] The partition wall portion is composed of a base material made of an insulating material and a metal layer formed on the upper portion of the base material and having a shape protruding from the base material like an eaves. The electronic device according to [C1] above. [C8] The metal layer is made of any one of aluminum, an aluminum alloy, and silver. The electronic device described in [C7] above. [C9] a transparent conductive material layer is formed on the surface of the metal layer of the partition wall; The electronic device according to [C7] or [C8] above. [C10] The first electrode is covered with a transparent conductive material layer in the same layer as the transparent conductive material layer of the partition wall. The electronic device described in [C9] above. [C11] The transparent conductive material layer is made of indium tin oxide or indium zinc oxide; The electronic device according to [C9] or [C10] above. [Explanation of symbols]

[0150] 1, 1A, 2, 3, 3A, 4, 5... display device, 10... substrate, 20... first electrode, 20A... metal material layer, 30... partition wall portion, 31... base material, 31A... insulating material layer, 32... metal layer, 32A... metal material layer, 39... insulating material layer, 50... organic layer, 60... second electrode, 70... protective layer, 80... filling layer, 90... Color filter, 130 partition wall portion, 131 substrate, 131A insulating material layer, 132 metal layer, 132A metal material layer, 230 partition wall portion, 233 inter-pixel insulating film, 233A insulating material film, 320 first electrode, 330 partition wall portion, 331 substrate, 331B lower layer portion of substrate, 331T upper layer portion of substrate, 332 metal layer, 420 first electrode, 421 lower electrode, 520 first electrode, 530 partition wall, 531 base material, lower layer of base material, first insulating material layer, 532 metal layer, 533 transparent conductive material layer, 711 camera body, 712 photographing lens unit, 713 grip, 714 monitor, 715 viewfinder, 811 eyeglasses-shaped display, 812 ear hook, 900 eyeglasses (eyewear), 911 see-through head mounted display, 912 body, 913 arm, 914 lens barrel, RS light reflecting surface, GP recess, R red display pixel, G green display pixel, B blue display pixel

Claims

1. A light-emitting section, which is formed by laminating a first electrode, an organic layer, and a second electrode, is arranged in a two-dimensional matrix on a substrate, The first electrode is provided for each light-emitting portion, A partition portion is formed between adjacent first electrodes, an organic layer and a second electrode are laminated on the entire surface including the first electrode and the partition wall; The partition has a light reflecting surface made of a metal layer, a recessed portion facing the inside of the partition portion is provided in a side surface of the partition portion facing the first electrode, the partition portion includes a substrate made of an insulating material and having a recess, a metal layer formed on the surface of the substrate excluding the recess, and an inter-pixel insulating film formed on the surface of the metal layer; the recess is provided by removing the inter-pixel insulating film from a portion of the side surface of the partition wall on the first electrode side; Display device.

2. A light-emitting section formed by laminating a first electrode, an organic layer, and a second electrode is arranged in a two-dimensional matrix on a substrate, The first electrode is provided for each light-emitting portion, A partition portion is formed between adjacent first electrodes, an organic layer and a second electrode are laminated on the entire surface including the first electrode and the partition wall; The partition has a light reflecting surface made of a metal layer, a recessed portion facing the inside of the partition portion is provided in a side surface of the partition portion facing the first electrode, the partition wall portion includes a base material made of an insulating material and a metal layer formed on the upper portion of the base material and projecting from the base material in an eave-like shape; a transparent conductive material layer is formed on the surface of the metal layer of the partition wall; Display device.

3. The metal layer is made of any one of aluminum, an aluminum alloy, and silver. The display device according to claim 2 .

4. the first electrode is covered with a transparent conductive material layer which is the same layer as the transparent conductive material layer of the partition wall; The display device according to claim 2 .

5. The transparent conductive material layer is made of indium tin oxide or indium zinc oxide; The display device according to claim 2 .

6. A method for manufacturing a display device in which light-emitting sections each having a first electrode, an organic layer, and a second electrode laminated thereon are arranged in a two-dimensional matrix on a substrate, the method comprising the steps of: A step of forming a first electrode corresponding to each light emitting portion; forming a partition wall portion in a region corresponding to a region between adjacent first electrodes; a step of laminating an organic layer and a second electrode on the entire surface including the first electrode and the partition wall; It has the step of forming the partition wall includes a step of providing a recess facing the inside of the partition wall in a portion of a side surface of the partition wall on the first electrode side, and a step of providing a light reflecting surface made of a metal layer on the partition wall; a first insulating material layer constituting a lower layer of the partition wall and a metal layer constituting an upper layer having a shape protruding like an eaves from the lower layer, thereby providing a recessed portion facing the inside of the partition wall on a side surface of the partition wall on the first electrode side; A step of forming a partition portion and a step of forming a first electrode forming a lower layer electrode in a region corresponding to the first electrode; Next, a step of forming a first insulating material layer constituting a lower layer portion between adjacent lower layer electrodes and a metal layer constituting an upper layer portion having a shape protruding like an eaves with respect to the lower layer portion; A step of forming a transparent conductive material layer on the entire surface including the partition wall portion, thereby forming a first electrode including the transparent conductive material layer separated by an overhang of an upper layer portion; By A method for manufacturing a display device.

7. A step of forming a transparent conductive material layer on the entire surface and then laminating an organic layer on the entire surface is performed successively. The method for manufacturing the display device according to claim 6 .

8. A method for manufacturing a display device in which light-emitting sections each having a first electrode, an organic layer, and a second electrode laminated thereon are arranged in a two-dimensional matrix on a substrate, the method comprising: A step of forming a first electrode corresponding to each light emitting portion; forming a partition wall portion in a region corresponding to a region between adjacent first electrodes; a step of laminating an organic layer and a second electrode on the entire surface including the first electrode and the partition wall; It has the step of forming the partition wall includes a step of providing a recess facing the inside of the partition wall in a portion of a side surface of the partition wall on the first electrode side, and a step of providing a light reflecting surface made of a metal layer on the partition wall; forming a partition portion from a base material made of an insulating material, a metal layer formed on the surface of the base material, and an inter-pixel insulating film formed on the surface of the metal layer, and then removing the inter-pixel insulating film on a side surface of the partition portion facing the first electrode, thereby providing a recessed portion facing the inside of the partition portion on the side surface of the partition portion facing the first electrode; A method for manufacturing a display device.

9. A light-emitting section, which is formed by laminating a first electrode, an organic layer, and a second electrode, is arranged in a two-dimensional matrix on a substrate, The first electrode is provided for each light-emitting portion, A partition portion is formed between adjacent first electrodes, an organic layer and a second electrode are laminated on the entire surface including the first electrode and the partition wall; The partition has a light reflecting surface made of a metal layer, a recessed portion facing the inside of the partition portion is provided in a side surface of the partition portion facing the first electrode, the partition portion includes a substrate made of an insulating material and having a recess, a metal layer formed on the surface of the substrate excluding the recess, and an inter-pixel insulating film formed on the surface of the metal layer; the recess is provided by removing the inter-pixel insulating film from a portion of the side surface of the partition wall on the first electrode side; An electronic device equipped with a display device.

10. A light-emitting section formed by laminating a first electrode, an organic layer, and a second electrode is arranged in a two-dimensional matrix on a substrate, The first electrode is provided for each light-emitting portion, A partition portion is formed between adjacent first electrodes, an organic layer and a second electrode are laminated on the entire surface including the first electrode and the partition wall; The partition has a light reflecting surface made of a metal layer, a recessed portion facing the inside of the partition portion is provided in a side surface of the partition portion facing the first electrode, the partition wall portion includes a base material made of an insulating material and a metal layer formed on the upper portion of the base material and projecting from the base material in an eave-like shape; a transparent conductive material layer is formed on the surface of the metal layer of the partition wall; An electronic device equipped with a display device.

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