Patent Publication Number: US-2016233284-A1

Title: Organic el device and electronic apparatus

Description:
BACKGROUND 
     1. Technical Field 
     The present invention relates to an organic EL device and an electronic apparatus. 
     2. Related Art 
     The organic electroluminescence (EL) device has a structure in which a light emitting layer formed from a light emitting material is interposed between an anode (pixel electrode) and a cathode (counter electrode). The organic EL device is mounted to a head mounted display (HMD) or an electronic view finder (EVF) or the like as an electronic apparatus. 
     JP-A-2014-89804 discloses an organic EL device with a structure having a color filter, and a light blocking layer (convexity) provided between colored layers that configure the color filter. A material with light blocking properties, such as aluminum, is used for the light blocking layer. 
     However, in a case where a color filter is provided, a problem arises where the luminance is lowered (insufficient) when applied to an HMD or the like. In a case in which the color filter is removed, a problem arises where the tone is insufficient when applied to an EVF or the like. In a case where the color filter is removed, a problem arises where light reflected by the light blocking layer is not absorbed by the color filter and cross-talk (stray light) is generated. 
     SUMMARY 
     The invention can be realized in the following aspects or application examples. 
     Application Example 1 
     According to this application example, there is provided an organic EL device, including a substrate; a first pixel electrode and a second pixel electrode on the substrate; an organic light emitting layer provided on the first pixel electrode and the second pixel electrode; an electrode provided on the organic light emitting layer; a protective layer formed from at least one layer and provided on the electrode; a light blocking layer provided on an upper layer of the protective layer. The light blocking layer is provided at a position between the first electrode and the second electrode and has carbon with an SP2 structure. 
     According to the application example, since light can be absorbed by using a light blocking layer having carbon with an SP2 structure, in other words, light is not easily reflected, even if a color filter is not provided, cross-talk (stray light) can be suppressed from occurring. In a case where a color filter is not provided, it is possible to suppress the luminance from lowering. 
     Application Example 2 
     In the organic EL device according to the application example, it is preferable that the light blocking layer is a graphene laminate film. 
     According to the application example, since the graphene laminate film is used as the light blocking layer, visible light can be absorbed, and the light blocking layer may be caused to function as high light absorbent film through using the laminate film. As a result, it is possible to suppress stray light from occurring. 
     Application Example 3 
     In the organic EL device according to the application example, it is preferable that a color filter is provided on an upper layer of the light blocking layer. 
     According to the application example, since the color filter is arranged on the light blocking layer, in other words, the light blocking layer and the color filter are combined, light emission with a favorable high color region and excellent color field of view may be performed, and may be favorably applied to the EVE. 
     Application Example 4 
     In the organic EL device according to the application example, it is preferable that a convexity having optical transparency is provided on the light blocking layer. 
     According to the application example, since the convexity is provided on the light blocking layer, in a case of forming the colored layers that configure the color filter for each sub-pixel, the colored layer may be more easily formed between adjacent convexities. Since the layer has optical transparency, it is possible to suppress stray light from occurring. 
     Application Example 5 
     It is preferable that the organic EL device according to the application example further includes a resonance length adjusting layer and a reflection layer provided on a lower layer of the pixel electrode. 
     According to the application example, since a resonance structure (microcavity structure) including a resonance length adjusting layer and a reflection layer is included, in a case where applied to an HMD, it is possible to execute color display without providing a color filter, and, along therewith, to suppress lowering of the luminance. Meanwhile, in a case where applied to an EVF, it is possible for the tone to be improved through being used by matching the color filter. 
     Application Example 6 
     According to this application example, there is provided an electronic apparatus including the above organic EL device. 
     According to the application example, since the organic EL device is provided, it is possible to provide an electronic apparatus with a high display quality. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention will be described with reference to the accompanying drawings, wherein like numbers reference like elements. 
         FIG. 1  is an equivalent circuit diagram showing an electrical configuration of an organic EL device according to the first embodiment. 
         FIG. 2  is a schematic plan view showing a configuration of the organic EL device. 
         FIG. 3  is a schematic plan view showing a sub-pixel arrangement. 
         FIG. 4  is a schematic sectional view showing the structure of the sub-pixel taken along line IV-IV in  FIG. 3 . 
         FIG. 5  is a flowchart showing the method of manufacturing the organic EL device. 
         FIGS. 6A to 6C  are schematic sectional views showing a portion of the manufacturing process from the method of manufacturing an organic EL device. 
         FIGS. 7D to 7F  are schematic sectional views showing a portion of the manufacturing process from the method of manufacturing an organic EL device. 
         FIG. 8  is a schematic view showing a configuration of a head mounted display as an electronic apparatus. 
         FIG. 9  is a schematic sectional view showing a structure of an organic EL device (sub-pixel) of the second embodiment. 
         FIGS. 10A to 100  are schematic sectional views showing a portion of the manufacturing process from the method of manufacturing an organic EL device. 
         FIG. 11  is a schematic sectional view showing a structure of an organic EL device (sub-pixel) of a third embodiment. 
         FIGS. 12A to 12D  are schematic sectional views showing a portion of the manufacturing process from the method of manufacturing an organic EL device. 
     
    
    
     DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     Below, specific embodiments of the invention will be described according to the drawings. The drawings used are displayed after enlarging or reducing as appropriate in order that the portions described are recognizable. 
     In the following aspects, for example, if the wording “on a substrate” is disclosed, and there is no special description, a case where arrangement is performed so as to contact the top of the substrate, a case where arrangement is performed via another constituent component on top of the substrate, and a case where a portion is arranged so as to contact the top of the substrate and a portion is arranged via the other constituent component are included. 
     First Embodiment 
     Organic EL Device 
     Below, the organic EL device of the embodiment will be described with reference to  FIGS. 1 to 4 .  FIG. 1  is an equivalent circuit diagram showing the electrical configuration of the organic EL device of the first embodiment,  FIG. 2  is a schematic plan view showing the configuration of the organic EL device of the first embodiment,  FIG. 3  is a schematic plan view showing a sub-pixel arrangement, and  FIG. 4  is a schematic sectional view showing the structure of a sub-pixel taken along line IV-IV in  FIG. 3 . 
     As shown in  FIG. 1 , the organic EL device  100  of the embodiment includes plurality of scanning lines  12  and a plurality of data lines  13  that intersect one another, and a plurality of power lines  14  arranged in a line for each of the plurality of data lines  13 . The organic EL device includes a scanning line driving circuit  16  to which the plurality of scanning lines  12  is connected, and a data line driving circuit  15  to which the plurality of data lines  13  is connected. A plurality of sub-pixels  18  that is arranged in a matrix form corresponding to each intersection of the plurality of scanning lines  12  and the plurality of data lines  13  is included. 
     The sub-pixels  18  include an organic EL element  30  as a light emitting element and a pixel circuit  20  that controls the driving of the organic EL element  30 . 
     The organic EL element  30  includes a pixel electrode  31 , a counter electrode  33  as a shared electrode, and a functional layer  32  as an organic light emitting layer provided between the pixel electrode  31  and the counter electrode  33 . It is possible for such an organic EL element  30  to be electrically denoted as a diode. Although described in detail later, the counter electrode  33  is formed as a shared cathode spanning a plurality of sub-pixels  18 . 
     The pixel circuit  20  includes a switching transistor  21 , a storage capacitor  22 , and a driving transistor  23 . It is possible for the two transistors  21  and  23  to be configured using an n-channel or p-channel thin film transistor (TFT) or a MOS transistor. 
     The gate of the switching transistor  21  is connected to the scanning line  12 , one of the source or drain is connected to the data line  13 , and the other of the source or drain is connected to the gate of the driving transistor  23 . 
     One of the source or drain of the driving transistor  23  is connected to the pixel electrode  31  of the organic EL element  30 , and the other of the source or drain is connected to the power line  14 . The storage capacitor  22  is connected between the gate of the driving transistor  23  and the power line  14 . 
     When the scanning line  12  is driven and the switching transistor  21  thereby enters an on state, and the potential based on the image signal supplied from the data line  13  at this time is held by the storage capacitor  22  via the switching transistor  21 . 
     The on and off states of the driving transistor  23  are determined according to the potential of the storage capacitor  22 , that is, the gate potential of the driving transistor  23 . When the driving transistor  23  is in the on state, a current with an amount according to the gate potential flows from the power line  14  to the functional layer  32  interposed between the pixel electrode  31  and the counter electrode  33  via the driving transistor  23 . The organic EL element  30  emits light according to the current amount flowing to the functional layer  32 . 
     As shown in  FIG. 2 , the organic EL device  100  includes an element substrate  10 . A display region E 0  (displayed with a dashed line in the drawing), and a non-display region E 3  outside the display region E 0  are provided on the element substrate  10 . The display region E 0  includes an actual display region E 1  (displayed with a double dashed line in the drawing) and a dummy region E 2  that surrounds the actual display region E 1 . 
     The sub-pixels  18  as light emitting pixels are arranged in a matrix form in the actual display region E 1 . The sub-pixel  18  is provided with the organic EL element  30  as the above-described light emitting element, and is configured so that emitted light with any color from blue (B), green (G), and red (R) is obtained according to the operation of the switching transistor  21  and the driving transistor  23 . 
     In the embodiment, the sub-pixels  18  from which the same color of light emission is obtained are arranged in a first direction, and the sub-pixels  18  from which different colors of light emission is obtained are arranged in a second direction that intersects (orthogonal to) the first direction, which is a so-called stripe format of the arrangement of sub-pixels  18 . Below, description is made with the first direction as the Y direction and the second direction as the X direction. The arrangement of the sub-pixels  18  on the element substrate  10  is not limited to the stripe format, and may be a mosaic format or a delta format. 
     A peripheral circuit for mainly causing the organic EL element  30  of each sub-pixel  18  to emit light is provided in the dummy region E 2 . As shown in  FIG. 2 , a pair of scanning line driving circuits  16  is provided extending in the Y direction at positions interposing the actual display region E 1  in the X direction. A scanning circuit  17  is provided at a position along the actual display region E 1  between the pair of scanning line driving circuits  16 . 
     A flexible circuit substrate (FPC)  43  for achieving electrical connection with an external driving circuit is provided on one edge portion (downward edge portion in drawing) parallel to the X direction of the element substrate  10 . A driving IC  44  connected to a peripheral circuit on the element substrate  10  side via the wiring of the FPC  43  is mounted to the FPC  43 . The driving IC  44  includes the data line driving circuit  15  described above, and the data line  13  and power line  14  on the element substrate  10  side are connected to the driving IC  44  via the flexible circuit substrate  43 . 
     A wiring  29  for providing a potential to the counter electrode  33  of the organic EL element  30  of each sub-pixel  18  is formed between the outer edges of the display region E 0  and the element substrate  10 , that is, in the non-display region E 3 . The wiring  29  is provided on the element substrate  10  so as to surround the display region E 0  except for the edge portion of the element substrate  10  to which the FPC  43  is connected. 
     Next, the parallel arrangement of the sub-pixels  18 , particularly the parallel arrangement of the pixel electrode  31  will be described with reference to  FIG. 3 . As shown in  FIG. 3 , the sub-pixel  18 B from which blue (B) light emission is obtained, the sub-pixel  18 G from which green (G) light emission is obtained, and the sub-pixel  18 R from which red (R) light emission is obtained are arranged in parallel in this order in the X direction. The sub-pixels  18  from which the same color of light emission is obtained are arranged in parallel adjacent in the Y direction. The configuration performs display with the three sub-pixels  18 B,  18 G, and  18 R arranged in parallel in the X direction as one pixel  19 . 
     The arrangement pitch of the sub-pixels  18 B,  18 G, and  18 R in the X direction is less than 5 μm. The sub-pixels  18 B,  18 G, and  18 R are arranged spaced with a gap of 0.5 μm to 1.0 μm in the X direction. The arrangement pitch of the sub-pixels  18 B,  18 G, and  18 R in the Y direction is less than 10 μm. 
     The pixel electrodes  31  in the sub-pixels  18  are substantially rectangular, and the long direction thereof is arranged along the Y direction. The pixel electrodes  31  are referred to as the pixel electrodes  31 B,  31 G, and  31 R corresponding to the light emission color. An insulating film  27  is formed covering the outer edge of each pixel electrode  31 B,  31 G, and  31 R. Thereby, an opening portion  27   a  is formed on each pixel electrode  31 B,  31 G, and  31 R, and the pixel electrodes  31 B,  31 G, and  31 R are exposed in the respective opening portions  27   a . The planar shape of the opening portion  27   a  is also substantially rectangular. 
     In  FIG. 3 , although the arrangement of the sub-pixels  18 B,  18 G, and  18 R with different colors is in the order of blue (B), green (G), and red (R) from the left side in the X direction, there is no limitation thereto. The order may also be red (R), green (G), and blue (B) from the left side in the X direction. 
     Next, the structure of the sub-pixels  18 B,  18 G, and  18 R will be described with reference to  FIG. 4 . As shown in  FIG. 4 , the organic EL device  100  includes a base material  11  as a substrate in the invention, a first pixel electrode layer  18 B 1 , a second pixel electrode layer  18 G 1 , and a third pixel electrode layer  1881  formed on the base material  11 , a functional layer  32 , and a counter electrode  33 . 
     A sealing layer  34  as a protective layer, a light blocking layer  51  formed on the sealing layer  34 , a filler layer  42  formed so as to cover the light blocking layer  51  and the sealing layer  34 , and a counter substrate  41  arranged on the filler layer  42  are provided on the counter electrode  33 . 
     The element substrate  10  includes the base material  11  to the light blocking layer  51 . In  FIG. 4 , the configuration of the driving transistor  23  or the like of the pixel circuit  20  on the element substrate  10  is not shown in the drawing. 
     The organic EL device  100  employs a top emission format in which light emitted from the functional layer  32  is extracted from the counter substrate  41  side. Accordingly, it is possible for the base material  11  to use not only a transparent substrate, such as glass, but also a non-transparent substrate, such as silicon or a ceramic. The counter substrate  41  is a transparent substrate, such as glass. 
     Reflection layers  26  ( 26 B,  26 G, and  26 R), transparent layers  25  ( 25 B,  25 G,  25 R) as resonance length adjusting layers, and pixel electrodes  31  ( 31 B,  31 G,  31 R) are formed in order from the base material  11  side for the first pixel electrode layer  18 B 1 , the second pixel electrode layer  18 G 1 , and the third pixel electrode layer  18 R 1 . 
     It is possible for Al (aluminum), Ag (silver) or alloys of these metals having optical reflectivity to be used for the reflection layer  26 . 
     The transparent layer  25  serves a role as a resonance length adjusting layer, described later. The transparent layer  25  achieves electrical insulation between the pixel electrode  31  and the reflection layer  26 , which is formed later, and it is possible for an inorganic insulating film such as SiOx (silicon dioxide) to be used. The film thickness of the transparent layer  25  differs at each of the first pixel electrode layer  18 B 1 , the second pixel electrode layer  1861 , and the third pixel electrode layer  18 R 1 . 
     Specifically, the film thickness becomes thicker in the order of blue (B), green (G), and red (R). In other words, the film thickness of the transparent layer  25  differs corresponding to the sub-pixels  18 B,  18 G, and  18 R. 
     The pixel electrodes  31 B,  31 G, and  31 R are formed from a transparent conductive film, such as ITO (Indium Tin Oxide) or IZO (Indium Zinc Oxide). 
     The functional layer  32  includes an organic light emitting layer from which white light is obtained, and is formed in common spanning the sub-pixels  18 B,  18 G, and  18 R. It is possible to realize the white light by combining the organic light emitting layers from which blue (B), green (G), and red (R) emitted light are obtained. Even if organic light emitting layers from which blue (B) and yellow (Y) light emission are obtained are combined, it is possible to obtain a pseudo-white light. 
     The counter electrode  33  that covers the functional layer  32  is formed from an MgAg (magnesium silver) alloy, and the film thickness is controlled so that both optical transparency and optical reflectivity are provided. 
     The sealing layer  34  has a structure in which the first sealing layer  34   a , the planarizing layer  34   b , and the second sealing layer  34   c  are layered in this order from the counter electrode  33  side. 
     The first sealing layer  34   a  and the second sealing layer  34   c  are formed using an inorganic material. Examples of the inorganic material include SiOx (silicon oxide), SiNx (silicon nitride), SiOxNy (silicon oxynitride), and AlxOy (aluminum oxide) through which moisture and oxygen does not easily pass. Examples of the method of forming the first sealing layer  34   a  and the second sealing layer  34   c  include a vacuum deposition method, an ion plating method, a sputtering method, and a chemical vapor deposition (CVD). 
     In terms of not imparting heat damage or the like to the organic EL element  30 , it is preferable to employ a vacuum deposition method or an ion plating method. The film thickness of the first sealing layer  34   a  and the second sealing layer  34   c  is 50 nm to 1000 nm, and preferably 200 nm to 400 nm so that cracks and the like are not easily formed and transparency is obtained during film formation. 
     The planarizing layer  34   b  has transparency, and it is possible to form the layer using any resin material of a thermal or ultraviolet-curable epoxy resin, an acrylic resin, a urethane resin, and a silicon resin. The layer may be formed using a coating-type inorganic material (silicon oxide or the like). 
     The planarizing layer  34   b  is formed by being layered on the first sealing layer  34   a  covering the plurality organic EL elements  30 . Since roughness arises in the surface of the first sealing layer  34   a  influenced by the lower layer, it is preferable for the planarizing layer  34   b  to be formed with a film thickness of 1 μm to 5 μm in order to relieve the roughness. 
     The second sealing layer  34   c  covering the planarizing layer  34   b  is formed using the above-described inorganic materials. The light blocking layer  51  is provided between the different colors of sub-pixels  18 B,  18 G, and  18 R on the sealing layer  34 . 
     The light blocking layer  51  is a material having carbon with an SP2 structure as a main component, and, for example, is graphene. The light blocking layer  51  uses a thin film of graphene with an atomic layer film thickness of several tens to several hundreds of atoms. 
     A one atom-thick thin film (layer) of graphene has optical transmissivity with an absorption of 2% to 3%. Thus, transmissivity is substantially eliminated if several tens to several hundreds of atoms (layer) are layered. The film thickness is several nm to several tens of nm. 
     In the related art, although an adverse influence is exerted on the transmission of light when the height of the light blocking layer is approximately 1 μm, it is possible for the exertion of the adverse influence to be suppressed as long as the film thickness is several nm to several tens of nm. 
     By layering thin films in this way, it is possible for the optical transmissivity to be lowered. There is no limitation to graphene, and carbon nanotubes or fullerene may be used. 
     The organic EL device  100  of the embodiment includes an optical resonator configured between the reflection layer  26  and the counter electrode  33 . Though the film thickness of the transparent layer  25  ( 25 B,  25 G,  25 R) being difference for each sub-pixel  18 B,  18 G, and  18 R, the optical distance in each of the respective resonators is different. In so doing, a structure is used in which light with a resonance length corresponding to each color in the respective sub-pixels  18 B,  18 G, and  18 R is obtained. 
     The adjustment method of the optical distance in the optical resonator is not limited thereto, and the film thickness of the pixel electrodes  31  ( 31 B,  31 G,  31 R) on the base material  11  may be made different for each sub-pixel  18 B,  18 G,  18 R. The resonant light emitted from the optical resonator of each sub-pixel  18 B,  18 G, and  18 R is radiated from the transparent counter substrate  41  side. 
     Method of Manufacturing Organic EL Device 
     Next, the method of manufacturing the organic EL device of the first embodiment will be described with reference to  FIGS. 5 to 7 .  FIG. 5  is a flowchart showing the method of manufacturing the organic EL device.  FIGS. 6 and 7  are schematic cross-sectional views showing a portion of the manufacturing process from the method of manufacturing the organic EL device. 
     As shown in  FIG. 5 , the method of manufacturing the organic EL device  100  of the embodiment includes a sealing layer forming process (step S 11 ), a light blocking layer forming process (step S 12 ), a filler layer forming process (step S 13 ), and a substrate adhering process (step S 14 ). It is possible for the method of forming the pixel circuit  20 , the organic EL element  30  or the like on the base material  11  to employ known methods. 
     Accordingly, in  FIGS. 6A to 7F , the configuration of the driving transistor  23  of the pixel circuit  20  and the like on the base material  11  is not displayed. Hereinafter, the step S 12  that is a characteristic part of the invention will be intensively described. 
     First, as shown in  FIG. 5 , in step S 11 , the sealing layer  34  is formed. Specifically, as shown in  FIG. 6A , the first sealing layer  34 A is formed so as to cover the counter electrode  33 , the planarizing layer  34   b  is formed on the first sealing layer  34   a , and the second sealing layer  34   c  is formed on the planarizing layer  34   b.    
     As described above, the first sealing layer  34   a  and the second sealing layer  34   c  are formed using an inorganic material, such as silicon oxide or the like. Examples of the method of forming the first sealing layer  34   a  and the second sealing layer  34   c  include a vacuum deposition method. The film thickness of the first sealing layer  34   a  and the second sealing layer  34   c  is approximately 200 nm to 400 nm. 
     As a method of forming the planarizing layer  34   b , the planarizing layer  34   b  formed from an epoxy resin is formed by using a solution including an epoxy resin having transparency and a solvent of the epoxy resin, and coating and drying the solution with a printing method or a spin coating method. The film thickness of the planarizing layer  34   b  is 1 μm to 5 μm. 
     In the step S 12 , the light blocking layer  51  is formed between the different colors of sub-pixels  18 B,  18 G, and  18 R on the sealing layer  34 . Specifically, first, as shown in  FIG. 6B , a thin film of the light blocking layer  51   a  formed from graphene is formed over the entire surface of the sealing layer  34 . It is possible for a CVD method to be used as the film forming method. The film thickness of the light blocking layer  51   a  is several nm to several tens of nm, as described above. 
     Next, as shown in  FIG. 6C , a resist pattern  53  is formed on the light blocking layer  51   a . Specifically, the resist pattern  53  is formed between the sub-pixels  18 B,  18 G, and  18 R using a photolithography method. 
     Next, as shown in  FIG. 7D , the light blocking layer  51   a  is subjected to an etching process. Specifically, the light blocking layer  51   a  is subjected to an etching process with the resist pattern  53  as a mask. 
     Next, as shown in  FIG. 7E , the resist pattern  53  is removed. Specifically, the light blocking layer  51  is completed by removing the resist pattern  53  using an ashing method. 
     There is no limitation to forming the light blocking layer  51  using the photolithography method, and the layer may be formed using a lift-off method. Since the light blocking layer  51  of several nm to several tens of nm is formed, it is possible for the workability to be improved. It is possible to form a light blocking layer  51  with high light blocking properties (light absorbing properties) while being a thin film. 
     In the step S 13 , a material that becomes the filler layer  42  is coated. Specifically, as shown in  FIG. 7F , a transparent resin material having adhesiveness is coated so as to cover the light blocking layer  51  and the sealing layer  34 . The transparent resin material is, for example, a thermosetting epoxy resin. The thickness of the filler layer  42  is approximately 10 μm to 100 μm. 
     Next, in the step S 14 , the counter substrate  41  is adhered. Specifically, as shown in  FIG. 7F , the counter substrate  41  is arranged at a predetermined position facing the base material  11  having the coated filler layer  42 , and the counter substrate  41  is pressed to the base material  11  side. In so doing, the element substrate  10  and the counter substrate  41  are adhered. 
     Electronic Apparatus 
     Next, an electronic apparatus according to the embodiment will be described with reference to  FIG. 8 .  FIG. 8  is a schematic view showing a configuration of a head mounted display (HMD) as an electronic apparatus. 
     As shown in  FIG. 8 , the head mounted display  1000  is provided with the above-described organic EL device  100 , and is provided with a main body section  115  having a glasses shape, and a controller  200  having a size enough to be held in the hand of a user. 
     The main body section  115  and the controller  200  are connected to be able to communicate in a wired or wireless manner. In the embodiment, the main body section  115  and the controller  200  are connected to be able to communicate with a cable  300 . The main body section  115  and the controller  200  communicate image signals or control signals via the cable  300 . 
     The main body section  115  is provided with a right eye display unit  115 A and a left eye display unit  115 B. The right eye display unit  115 A is provided with an image forming unit  120 A that forms image light of a right eye image. The left eye display unit  115 B is provided with an image forming unit  120 B that forms image light of a left eye image. 
     The image-forming unit  120 A is accommodated in temple part (right side) of the glasses in the glasses-type main body section  115 . Meanwhile, the image-forming unit  120 B is accommodated in temple part (left side) of the glasses in the glasses-type main body section  115 . 
     A viewing portion  131 A having optical transparency is provided in the main body section  115 . The viewing portion  131 A radiates image light of the right eye image toward the right eye of the user. In the head mounted display  1000 , the viewing portion  131 A has optical transparency, and the periphery is visible via the viewing portion  131 A. 
     A viewing portion  131 B having optical transparency is provided in the main body section  115 . The viewing portion  131 B radiates image light of the left eye image toward the left eye of the user. In the head mounted display  1000 , the viewing portion  131 B has optical transparency, and the periphery is visible via the viewing portion  131 B. 
     The controller  200  includes an operation unit  210  and operation buttons  220 . The user performs operation input with respect to the operation unit  210  or the operation button unit  220  of the controller  200 , and performs instruction to the main body section  115 . 
     In addition to the head mounted display  1000 , it is possible to use various electronic apparatuses such as a head up display (HUD), a picoprojector, a smartphone, a mobile telephone, a mobile computer, a digital camera, a digital video camera, a vehicle-mounted apparatus, and a lighting apparatus as the electronic apparatus to which the organic EL device  100  is mounted. 
     As described in detail above, according to the organic EL device  100  and electronic apparatus of the first embodiment, the effects shown below are obtained. 
     (1) According to the organic EL device  100  of the first embodiment, since light can be absorbed by using a layered film having carbon with an SP2 structure as a main component as the light blocking layer  51 , in other words, light is not easily reflected, even if a color filter is not provided, cross-talk (stray light) can be suppressed from occurring. In other words, it is possible for the graphene laminate film to be made to function as a high light absorbency film. Since the color filter is not provided, it is possible to suppress the luminance from lowering. 
     (2) According to the organic EL device  100  of the first embodiment, since the light blocking layer  51  with a thickness of several nm to several tens of nm is formed and subjected to etching process, it is possible for the workability to be comparatively improved. 
     (3) According to the organic EL device  100  of the first embodiment, since a resonance structure (microcavity structure) is included, in a case where applied to a see-through type head mounted display  1000 , it is possible for the color display to be performed without providing a color filter, and, since no color filter is provided, it is possible for lowering of the luminance to be suppressed. Additionally, in a case of providing a color filter, it is possible to suppress damage being imparted on the organic EL element  30  due to setting an extremely high luminance. As a result, it is possible for the service life of the organic EL element  30  to be extended. 
     (4) According to the electronic apparatus according to the first embodiment, since the organic EL device  100  is provided, it is possible to provide an electronic apparatus with a high display quality. 
     Second Embodiment 
     Organic EL Device 
     Next, the organic EL device of the second embodiment will be described with reference to  FIG. 9 .  FIG. 9  is a schematic sectional view showing a structure of an organic EL device (sub-pixel) of the second embodiment. 
     Compared to the organic EL device  100  of the above-described first embodiment, the organic EL device  101  of the second embodiment differs in the parts provided with a color filter  36  and the other parts are substantially the same. Therefore, in the second embodiment, the parts different to the first embodiment will be described in detail, and the other overlapping parts will not be described, as appropriate. 
     As shown in  FIG. 9 , the color filter  36  of the organic EL device  101  of the second embodiment is provided so as to cover the light blocking layer  51  and the sealing layer  34 . Similarly to the first embodiment, the filler layer  42 , and the counter substrate  41  are arranged on the color filter  36 . The element substrate  10  of the embodiment includes from the base material  11  to the color filter  36 . 
     The light emitted from the functional layer  32  of the organic EL device  101  of the second embodiment passes through the color filter  36  and is extracted from the counter substrate  41  side. Since the color filter  36  alleviates the roughness with the planarizing layer  34   b  that configures the sealing layer  34 , little influence of the roughness is imparted. 
     The color filter  36  is configured to include the blue (B), green (G), and red (R) colored layers  36 B,  36 G,  36 R formed on the sealing layer  34  with a photolithography method. The colored layers  36 B,  36 G, and  36 R are formed corresponding to the sub-pixels  18 B,  18 G, and  18 R. 
     On the sealing layer  34 , the light blocking layer  51  is provided, similarly to the first embodiment, between the colored layers  36 B,  36 G, and  36 R of the different colored sub-pixels  18 B,  18 G, and  18 R. The resonant light emitted from the optical resonator of each sub-pixel  18 B,  18 G, and  18 R passes through each colored layer  36 B,  36 G, and  36 R, and is thereby radiated from the transparent counter substrate  41  side. 
     Method of Manufacturing Organic EL Device 
     Next, the method of manufacturing the organic EL device of the second embodiment will be described with reference to  FIGS. 10A to 100 .  FIGS. 10A to 100  are schematic sectional views showing a portion of the manufacturing process from the method of manufacturing an organic EL device. 
     The formation process of the color filter of the method of manufacturing the organic EL device  101  of the second embodiment is performed between the processes in the steps S 12  and S 13  in the method of manufacturing the organic EL device  100  of the first embodiment. Accordingly, in  FIG. 10 , the processes before and after including the method of manufacturing the color filter  36  will be intensively described. 
     First, as shown in  FIG. 10A , up to forming the light blocking layer  51  on the sealing layer  34  is performed similarly to the first embodiment. Thereafter, as shown in  FIG. 10B , the color filter  36  is formed. 
     Specifically, a light sensitive resin material including a green coloring material is coated on the surface of the sealing layer  34  on which the light blocking layer  51  is formed by a spin coating method, thereby forming a light sensitive resin layer. Thereafter, by exposing or developing the light sensitive resin layer, a colored layer  36 G is formed between the light blocking layers  51  positioned above the pixel electrode  31 G. 
     Next, a light sensitive resin material including a blue coloring material is coated using the spin coating method, thereby forming a light sensitive resin layer. Thereafter, by exposing or developing the light sensitive resin layer, a colored layer  36 B is formed. 
     Next, a light sensitive resin material including a red coloring material is coated using the spin coating method, thereby forming a light sensitive resin layer. Thereafter, by exposing or developing the light sensitive resin layer, a colored layer  36 R is formed. 
     In so doing, as shown in  FIG. 10B , the colored layer  36 B is formed above the pixel electrode  31 B, the colored layer  36 G is formed above the pixel electrode  31 G, and the colored layer  36 R is formed above the pixel electrode  31 R. 
     Thereafter, as shown in  FIG. 100 , the material of the filler layer  42  is coated on the color filter  36 , similarly to the first embodiment. Next, the counter substrate  41  is adhered. In so doing, the organic EL device  101  of the second embodiment is completed. 
     As described in detail above, according to the organic EL device  101  in the second embodiment, the effects shown below are obtained. 
     (5) According to the organic EL device  101  of the second embodiment, since the color filter  36  is provided on the light blocking layer  51  and the sealing layer  34 , in other words, the light blocking layer  51  and the color filter  36  are combined, it is possible for light with a favorable high color region and excellent color field of view to be emitted, and application to an EVF or the like not easily influenced by the luminance is possible. Favorable application to a closed-type head mounted display is also possible. 
     Third Embodiment 
     Organic EL Device 
     Next, the organic EL device of the third embodiment will be described with reference to  FIG. 11 .  FIG. 11  is a schematic cross-sectional view showing a structure of an organic EL device (sub-pixel) of the third embodiment. 
     Compared to the organic EL device  101  of the above-described second embodiment, the organic EL device  102  of the third embodiment differs in the parts at which the convexity  52  is provided on the light blocking layer  51 , and the other parts are substantially the same. Therefore, in the third embodiment, the parts different to the second embodiment will be described in detail, and the other overlapping parts will not be described, as appropriate. 
     As shown in  FIG. 11 , a convexity  52  with a trapezoidal section is formed between each colored layer  36 B,  36 G, and  36 R of the color filter  36  on the light blocking layer  51  of the organic EL device  102  of the third embodiment. 
     Specifically, the convexities  52  are arranged on a part adjacent to the blue colored layer  36 B and the green colored layer  36 G, a part adjacent to the green colored layer  36 G and the red colored layer  36 R, and a part adjacent to the red colored layer  36 R and the blue colored layer  36 B. 
     The convexity  52  is formed by a light sensitive resin material not including a coloring material having optical transparency. That is, the main material of the convexity  52  and the colored layers  36 B,  36 G, and  36 R is the same. 
     The color filter  36  of the organic EL device  102  is provided so as to cover the light blocking layer  51 , the convexity  52 , and the sealing layer  34 . The filler layer  42  and the counter substrate  41  are arranged on the color filter  36 . The element substrate  10  of the embodiment includes from the base material  11  to the color filter  36 . 
     Method of Manufacturing Organic EL Device 
     Next, the method of manufacturing the organic EL device of the third embodiment will be described with reference to  FIGS. 12A to 12D .  FIGS. 12A to 12D  are schematic sectional views showing a portion of the manufacturing process from the method of manufacturing an organic EL device. 
     The method of manufacturing the organic EL device  102  of the third embodiment forms the convexity  52  before the formation process of the color filter  36  in the method of manufacturing the organic EL device  101  of the second embodiment. Accordingly, in  FIG. 12 , the processes before and after including the method of manufacturing the convexity  52  will be intensively described. 
     As shown in  FIG. 12A , up to forming the light blocking layer  51  on the sealing layer  34  is performed similarly to the second embodiment. Thereafter, as shown in  FIG. 12B , the convexity  52  is formed. 
     Specifically, a transparent light sensitive resin layer is formed by coating a transparent light sensitive resist with a spin coating method, and drying the resist. The transparent light sensitive resin layer is configured by a light sensitive acrylic resin, and the region irradiated with (exposed to) light is made insoluble. 
     Next, the light sensitive resin material that is made insoluble is baked and cured, thereby forming the trapezoidal convexity  52  on the light blocking layer  51 . The light sensitive resin layer becomes a transparent resin with increased transparency by being irradiated with (exposed to) light. 
     Thereafter, a light sensitive resin material including a green coloring material is coated on the surface of the sealing layer  34  on which the convexity  52  and the light blocking layer  51  are formed with a spin coating method, thereby forming a light sensitive resin layer. Thereafter, by exposing or developing the light sensitive resin layer, a colored layer  36 G is formed between the convexities  52  positioned above the pixel electrode  31 G. 
     Next, a light sensitive resin material including a blue coloring material is coated using the spin coating method, thereby forming a light sensitive layer. Thereafter, by exposing or developing the light sensitive resin layer, a colored layer  36 B is formed. 
     Next, a light sensitive resin material including a red coloring material is coated using the spin coating method, thereby forming a light sensitive resin layer. Thereafter, by exposing or developing the light sensitive resin layer, a colored layer  36 R is formed. 
     In so doing, as shown in  FIG. 12C , the colored layer  36 B is formed between the convexities  52  positioned above the pixel electrode  31 B, the colored layer  36 G is formed between the convexities  52  positioned above the pixel electrode  31 G, and the colored layer  36 R is formed between the convexities  52  positioned above the pixel electrode  31 R. 
     Thereafter, as shown in  FIG. 12D , the material of the filler layer  42  is coated on the color filter  36 . Next, the counter substrate  41  is adhered. In so doing, the organic EL device  102  of the third embodiment is completed. 
     As described in detail above, according to the organic EL device  102  of the third embodiment, the effects shown below are obtained. 
     (6) According to the organic EL device  102  of the third embodiment, since the convexity  52  is provided on the light blocking layer  51 , in a case of forming the colored layers  36 B,  36 G, and  36 R that configure the color filter  36  for each sub-pixel  18 B,  18 G, and  18 R, it is possible for the colored layers  36 B,  36 G,  36 R to be more easily formed between adjacent convexities  52 . Since the layer has optical transparency, stray light does not easily occur. 
     The aspects of the invention are not limited to the above-described embodiments and are able to be appropriately changed within a range not departing from the gist or spirit of the invention read from the claims and the entire specification, and are included in the technical range of the aspects of the invention. It is possible to execute the embodiments as follows. 
     Modification Example 1 
     In this way, although the organic EL devices  100 ,  101 , and  102  are provided with a resonance structure (microcavity structure), there is no limit thereto, and a structure may be used in which the resonance structure is not provided. 
     The entire disclosure of Japanese Patent Application No.: 2015-020963, filed Feb. 5, 2015 is expressly incorporated by reference herein.