Abstract:
A reflector capable of suppressing contrast reduction caused by retro-reflection of outside light, a display device having the same, and a method of manufacturing the same are provided. The reflector includes: a base having first and second opposed surfaces, the second surface being provided with a reflective element; and a light absorbing film formed in a region other than the reflective element in the second surface.

Description:
CROSS REFERENCES TO RELATED APPLICATIONS 
       [0001]    The present application claims priority to Japanese Priority Patent Application JP 2008-297051 filed in the Japanese Patent Office on Nov. 20, 2008, the entire content of which is hereby incorporated by reference. 
       BACKGROUND 
       [0002]    The present application relates to a reflector for improving luminance of a display device using a self-luminous light emitting element such as an organic EL (Electroluminescence) element, a display device having the same, and a method of manufacturing the same. 
         [0003]    A self-luminous light emitting element such as an organic light emitting element has a first electrode, layers including a light emitting layer, and a second electrode in order on a substrate. When DC voltage is applied across the first and second electrodes, hole-electron recombination occurs in the light emitting layer, and light is generated. In some cases, the generated light is extracted from the first electrode side and the substrate. There is also a case that the generated light is extracted from the second electrode side, that is, the side opposite to circuits including a TFT (Thin Film Transistor) and wirings in order to increase the aperture ratio. In the case of extracting light from the second electrode side, generally, a metal electrode having high reflectance is used as the first electrode. 
         [0004]    An example of a display device using a self-luminous light emitting element is a display device using an organic light emitting element as described in, for example, Japanese Unexamined Patent Application Publication No. 2005-227519. A display device of related art is provided with a light shield film as a so-called black matrix as a measure to increase contrast. The light shield film is provided to absorb outside light, decrease luminance of black level on the screen, and increase visibility, and is formed together with a color filter over a sealing substrate. In the case of a display device using an organic light emitting element, the color filter is used to regulate light emission wavelength and realize excellent color reproducibility. 
         [0005]    In a display device using an organic light emitting element, it is also proposed to dispose a reflector near the organic light emitting element in order to increase display luminance to improve the efficiency of extracting light from the organic light emitting element as described in, for example, Japanese Unexamined Patent Application Publication No. 2001-85738. 
         [0006]    However, the technique in related art relates to only the reflector. Examination on the structure including the function of a black matrix and a method of manufacturing the reflector has not been made, and there is room for improvement. 
         [0007]    Further, in reality, the light shield film transmits light at the order of a few percents. Consequently, so-called retro-reflection such that outside light passed through the light shield film is reflected by a reflector film formed on the reflector and is returned to the observer side occurs. It causes a stray ray which induces contrast reduction. 
       SUMMARY 
       [0008]    It is therefore desirable to provide a reflector capable of suppressing contrast reduction caused by retro-reflection of outside light, a display device having the same, and a method of manufacturing the same. 
         [0009]    According to an embodiment, there is provided a reflector including: a base having first and second opposed surfaces, the second surface being provided with a reflective element; and a light absorbing film formed in a region other than the reflective element in the second surface. 
         [0010]    According to an embodiment, there is provided a display device including: a light emission panel having a plurality of self-luminous light emitting elements on a substrate; and a reflector provided on a light extraction side of the light emission panel. The reflector is constructed by the above-described reflector of an embodiment. 
         [0011]    According to an embodiment, there is provided a first method of manufacturing a display device including the steps of: forming a light emission panel by forming self-luminous light emitting elements on a substrate; forming a reflector having a reflective element; and disposing the reflector on a light extraction side of the light emission panel so that a front end face of the reflective element faces the self-luminous light emitting element. The step of forming the reflector includes the following steps (A) to (E): 
         [0012]    (A) forming a base having first and second opposed surfaces, the second surface being provided with the reflective element; 
         [0013]    (B) forming a light absorbing material film on the second surface of the base; 
         [0014]    (C) removing the light absorbing material film on side faces of the reflective element by isotropic etching; 
         [0015]    (D) after removal of the light absorbing material film on the side faces of the reflective element, forming a reflective material film on the second surface of the base; and 
         [0016]    (E) removing the reflective material film and the light absorbing material film on the front end face of the reflective element, thereby forming a light absorbing film in a region other than the reflective element in the second surface, and forming a reflector film on side faces of the reflective element and on the light absorbing film. 
         [0017]    According to an embodiment, there is provided a second method of manufacturing a display device including the steps of: forming a light emission panel by forming self-luminous light emitting elements on a substrate; forming a reflector having a reflective element; and disposing the reflector on a light extraction side of the light emission panel so that a front end face of the reflective element faces the light emitting element. The step of forming the reflector includes the following steps (A) to (E): 
         [0018]    (A) forming a base having first and second opposed surfaces, the second surface being provided with the reflective element; 
         [0019]    (B) forming a reflecting material film on the second surface of the base; 
         [0020]    (C) removing the reflecting material film in a region other than the reflective element in the second surface and on the front end face of the reflective element by anisotropic etching; 
         [0021]    (D) after removal of the reflecting material film in the region other than the reflective element in the second surface and on the front end face of the reflective element, forming a light absorbing material film on the second surface of the base; and 
         [0022]    (E) removing the reflecting material film and the light absorbing material film on the front end face of the reflective element, thereby forming a reflector film on side faces of the reflective element and forming a light absorbing film on a region other than the reflective element in the second surface and on the reflector film. 
         [0023]    In the reflector and the display device of an embodiment, light generated by a self-luminous light emitting element on the light emission panel enters from the front end face of the reflective element, is reflected by side faces of the reflective element, and extracted to the outside. Since the light absorbing film is formed in the region other than the reflective element in the second surface, the outside light is absorbed by the light absorbing film. Therefore, in the case of forming the reflector film on the side faces of the reflective element, retro-reflection of the outside light by the reflector film is suppressed, stray light is reduced, and contrast reduction is suppressed. 
         [0024]    In the reflector and the display device of an embodiment, the light absorbing film is formed in the region other than the reflective element in the second surface of the base. Therefore, outside light is absorbed by the light absorbing film, and contrast reduction caused by retro-reflection of the outside light may be suppressed. 
         [0025]    In the first method of manufacturing a display device of the embodiment of the invention, in the step of forming the reflector, the light absorbing material film is formed on the second surface of the base, and the light absorbing material film on side faces of the reflective element is removed by isotropic etching. After that, the reflecting material film is formed on the second surface of the base. In the second method of manufacturing a display device of the embodiment of the invention, the reflecting material film is formed on the second surface of the base, and the reflecting material film in the region other than the reflective element in the second surface and on the front end face of the reflective element is removed by anisotropic etching. After that, the light absorbing material film is formed on the second surface of the base. Therefore, the display device of the embodiment of the present invention may be manufactured with simple processes. 
         [0026]    Additional features and advantages are described herein, and will be apparent from the following Detailed Description and the figures. 
     
    
     
       BRIEF DESCRIPTION OF THE FIGURES 
         [0027]      FIG. 1  is a diagram illustrating a configuration of a display device according to a first embodiment. 
           [0028]      FIG. 2  is an equivalent circuit diagram illustrating an example of a pixel drive circuit illustrated in  FIG. 1 . 
           [0029]      FIG. 3  is a cross section illustrating a configuration in a display region in the display device illustrated in  FIG. 3 . 
           [0030]      FIGS. 4A and 4B  are cross sections illustrating a method of manufacturing the display device illustrated in  FIG. 3  in process order. 
           [0031]      FIGS. 5A and 5B  are cross sections illustrating a process subsequent to  FIGS. 4A and 4B . 
           [0032]      FIGS. 6A and 6B  are cross sections illustrating a process subsequent to  FIGS. 5A and 5B . 
           [0033]      FIG. 7  is a cross section illustrating a process subsequent to  FIGS. 6A and 6B . 
           [0034]      FIGS. 8A to 8C  are cross sections illustrating a process subsequent to  FIG. 7 . 
           [0035]      FIGS. 9A and 9B  are cross sections illustrating a process subsequent to  FIGS. 8A to 8C . 
           [0036]      FIGS. 10A and 10B  are cross sections illustrating an example of the process illustrated in  FIG. 9B  in process order. 
           [0037]      FIGS. 11A and 11B  are cross sections illustrating another example of the process illustrated in  FIG. 9B . 
           [0038]      FIGS. 12A and 12B  are cross sections illustrating a process subsequent to  FIGS. 9A and 9B . 
           [0039]      FIGS. 13A and 13B  are cross sections illustrating a process subsequent to  FIGS. 12A and 12B . 
           [0040]      FIGS. 14A and 14B  are cross sections illustrating a process subsequent to  FIGS. 13A and 13B . 
           [0041]      FIGS. 15A and 15B  are cross sections illustrating a process subsequent to  FIGS. 14A and 14B . 
           [0042]      FIGS. 16A and 16B  are cross sections illustrating a process subsequent to  FIGS. 15A and 15B . 
           [0043]      FIG. 17  is a cross section illustrating a process subsequent to  FIGS. 16A and 16B . 
           [0044]      FIGS. 18A to 18C  are cross sections illustrating a process subsequent to  FIG. 17 . 
           [0045]      FIGS. 19A to 19C  are cross sections illustrating another method of manufacturing the display device illustrated in  FIG. 3  in process order. 
           [0046]      FIGS. 20A and 20B  are cross sections illustrating a process subsequent to  FIGS. 19A to 19C . 
           [0047]      FIGS. 21A and 21B  are cross sections illustrating a process subsequent to  FIGS. 20A and 20B . 
           [0048]      FIGS. 22A and 22B  are cross sections illustrating a process subsequent to  FIGS. 21A and 21B . 
           [0049]      FIGS. 23A and 23B  are cross sections illustrating a process subsequent to  FIGS. 22A and 22B . 
           [0050]      FIGS. 24A and 24B  are cross sections illustrating a process subsequent to  FIGS. 23A and 23B . 
           [0051]      FIG. 25  is a diagram illustrating a configuration of a display device according to a second embodiment of the present invention. 
           [0052]      FIG. 26  is a diagram illustrating a configuration of a display device according to a third embodiment of the present invention. 
           [0053]      FIG. 27  is a diagram illustrating a configuration of a display device according to a fourth embodiment of the present invention. 
           [0054]      FIGS. 28A to 28C  are cross sections illustrating a method of manufacturing the display device illustrated in  FIG. 27  in process order. 
           [0055]      FIGS. 29A and 29B  are cross sections illustrating a process subsequent to  FIGS. 28A to 28C . 
           [0056]      FIGS. 30A and 30B  are cross sections illustrating a process subsequent to  FIGS. 29A and 29B . 
           [0057]      FIGS. 31A and 31B  are cross sections illustrating a process subsequent to  FIGS. 30A and 30B . 
           [0058]      FIGS. 32A and 32B  are cross sections illustrating a process subsequent to  FIGS. 31A and 31B . 
           [0059]      FIGS. 33A and 33B  are cross sections illustrating a process subsequent to  FIGS. 32A and 32B . 
           [0060]      FIGS. 34A and 34B  are cross sections illustrating a process subsequent to  FIGS. 33A and 33B . 
           [0061]      FIG. 35  is a cross section illustrating a process subsequent to  FIGS. 34A and 34B . 
           [0062]      FIG. 36  is a plan view illustrating a schematic configuration of a module including the display device of the foregoing embodiment. 
           [0063]      FIG. 37  is a perspective view illustrating the appearance of application example 1 of the display device of the foregoing embodiment. 
           [0064]      FIG. 38A  is a perspective view illustrating the appearance viewed from the surface side of application example 2, and  FIG. 38B  is a perspective view illustrating the appearance viewed from the back side. 
           [0065]      FIG. 39  is a perspective view illustrating the appearance of application example 3. 
           [0066]      FIG. 40  is a perspective view illustrating the appearance of application example 4. 
           [0067]      FIG. 41A  is a front view illustrating a state where a display device of application example 5 is open,  FIG. 41B  is a side view of the display device,  FIG. 41C  is a front view illustrating a state where the display device is closed,  FIG. 41D  is a left side view,  FIG. 41E  is a right side view,  FIG. 41F  is a top view, and  FIG. 41G  is a bottom view. 
           [0068]      FIG. 42  is a cross section illustrating a modification of the display device illustrated in  FIG. 3 . 
           [0069]      FIG. 43  is a cross section illustrating another modification of the display device illustrated in  FIG. 3 . 
       
    
    
     DETAILED DESCRIPTION 
       [0070]    The present application will be described in detail hereinbelow with reference to the drawings according to an embodiment. 
       First Embodiment 
       [0071]      FIG. 1  illustrates a configuration of a display device according to a first embodiment. The display device is used as a very-thin organic light-emission color display device or the like. For example, over a drive substrate  11 , a display region  110  in which a plurality of organic light emitting elements  10 R,  10 G, and  10 B which will be described later are disposed in a matrix is formed. Around the display region  110 , a signal line drive circuit  120  and a scan line drive circuit  130  as drivers for video image display are formed. 
         [0072]    In the display region  110 , a pixel drive circuit  140  is formed.  FIG. 2  illustrates an example of the pixel drive circuit  140 . The pixel drive circuit  140  is formed in a layer below a first electrode  13  which will be described later, and is an active-type drive circuit having a drive transistor Tr 1  and a write transistor Tr 2 , a capacitor (retention capacitor) Cs between the transistors Tr 1  and Tr 2 , and the organic light emitting element  10 R (or  10 G or  10 B) connected to the drive transistor Tr 1  in series between a first power supply line (Vcc) and a second power supply line (GND). The drive transistor Tr 1  and the write transistor Tr 2  are general thin film transistors (TFTs). The configuration of the transistors may be, for example, an inverted staggered structure (so-called bottom gate type) or a staggered structure (top gate type). 
         [0073]    In the pixel drive circuit  140 , a plurality of signal lines  120 A are disposed in the column direction, and a plurality of scan lines  130 A are disposed in the row direction. Each of cross points between the signal lines  120 A and the scan lines  130 A corresponds to any one (sub-pixel) of the organic light emitting elements  10 R,  10 G, and  10 B. Each of the signal lines  120 A is connected to the signal line drive circuit  120 . From the signal line drive circuit  120 , an image signal is supplied to the source electrode of the write transistor Tr 2  via the signal line  120 A. Each of the scan lines  130 A is connected to the scan line drive circuit  130 . From the scan line drive circuit  130 , a scan signal is sequentially supplied to the gate electrode of the write transistor Tr 2  via the scan line  130 A. 
         [0074]      FIG. 3  illustrates a sectional configuration in the display region  110  in the display device illustrated in  FIG. 1 . The display device has a reflector  30  between a light emission panel  10  and a sealing panel  20 . The light emission panel  10  and the reflector  30  are adhered to each other with an adhesion layer  41  made of a thermoset resin, an ultraviolet curable resin, or the like in between. The reflector  30  and the sealing panel  20  are adhered to each other with an adhesion layer  42  made of a thermoset resin, an ultraviolet curable resin. 
         [0075]    In the light emission panel  10 , on the drive substrate  11  made of glass, silicon (Si) wafer, resin, or the like, the organic light emitting elements  10 R for generating light of red, the organic light emitting elements  10 G for generating light of green, and the organic light emitting elements  10 B for generating light of blue are formed in order in a matrix as a whole. Each of the organic light emitting elements  10 R,  10 G, and  10 B has a strip shape in plan view, and one pixel is constructed by a combination of the neighboring organic light emitting elements  10 R,  10 G, and  10 B. 
         [0076]    Each of the organic light emitting elements  10 R,  10 G, and  10 B has a configuration in which, from the drive substrate  11  side, with the above-described pixel drive circuit  140  and a planarization layer  12  therebetween, the first electrode  13  as an anode, an insulting film  14 , and an organic layer  15  including a light emission layer which will be described later, and a second electrode  16  as a cathode are stacked in this order, and are covered with a protection film  17  as necessary. 
         [0077]    The first electrodes  13  are formed in correspondence with the organic light emitting elements  10 R,  10 G, and  10 B and are electrically isolated from each other by the insulating film  14 . The first electrode  13  has the function of a reflection electrode for reflecting light generated by a light emission layer. It is desirable to provide reflectance as high as possible from the viewpoint of increasing luminance efficiency. The first electrode  13  has, for example, a thickness of 100 nm to 1,000 nm both inclusive, and is made of aluminum (Al), an alloy containing aluminum (Al), silver (Ag), or an alloy containing silver (Ag). The first electrode  13  may be made of another metal element such as chromium (Cr), titanium (Ti), iron (Fe), cobalt (Co), nickel (Ni), molybdenum (Mo), copper (Cu), tantalum (Ta), tungsten (W), platinum (Pt), or gold (Au) or an alloy of the metal element. 
         [0078]    The insulating film  14  is provided to assure insulation between the first electrode  13  and the second electrode  16  and to accurately form a light emission region to a desired shape and is made of, for example, an organic material such as photosensitive acrylic, polyimide, polybenzoxazole, or the like or an inorganic material such as silicon oxide (SiO 2 ). The insulating film  14  has openings in correspondence with light emission regions in the first electrodes  13 . The organic layer  15  and the second electrode  16  may be continuously provided on not only the light emission regions but also the insulating film  14 , but light is generated only in the openings in the insulating film  14 . 
         [0079]    The organic layer  15  has a configuration in which, for example, a hole injection layer, a hole transport layer, a light emission layer, and an electron transport layer are stacked in order on the first anode  13 . The layers except for the light emission layer may be provided as necessary. The configuration of the organic layer  15  may vary according to light emission colors of the organic light emitting elements  10 R,  10 G, and  10 B. The hole injection layer is a buffer layer for increasing the hole injection efficiency and for preventing leakage. The hole transport layer is provided to increase the efficiency of transporting holes to the light emission layer. When an electric field is applied, recombination of electrons and holes occurs, and the light emission layer generates light. The electron transport layer is provided to increase the efficiency of transporting electrons to the light emission layer. An electron injection layer (not illustrated) made of LiF, Li 2 O, or the like may be provided between the electron transport layer and the second electrode  16 . 
         [0080]    The material of the hole injection layer of the organic hole layer  10 R is, for example, 4,4′,4″-tris(3-methylphenylamino) triphenylamine (m-MTDATA), or 4,4′,4″-tris(2-naphthylphenylamino) triphenylamine (2-TNATA). The material of the hole transport layer of the organic light emitting element  10 R is, for example, bis[(N-naphthyl)-N-phenyl]benzidine (α-NPD). The material of the light emission layer of the organic hole layer  10 R is, for example, a material obtained by mixing 40 volume % by of 2,6-bis[4-[N-(4-methoxyphenyl)-N-phenyl]aminostyryl]naphthalene-1,5-dicarbonitrile (BSN-BCN) to 8-quinolinol aluminum complex (Alq 3 ). The material of the electron transport layer of the organic light emitting element  10 R is, for example, Alq 3 . 
         [0081]    The material of the hole injection layer of the organic light emitting element  10 G is, for example, m-MTDATA or 2-TNATA. The material of the hole transport layer of the organic light emitting element  10 G is, for example, α-NPD. The material of the light emission layer of the organic light emitting element  10 G is, for example, a material obtained by mixing 3 volume % of Coumarin6 to Alq 3 . The material of the electron transport layer of the organic light emitting element  10 G is, for example, Alq 3 . 
         [0082]    The material of the hole injection layer of the organic light emitting element  10 B is, for example, m-MTDATA or 2-TNATA. The material of the hole transport layer of the organic light emitting element  10 B is, for example, α-NPD. The material of the light emission layer of the organic light emitting element  10 B is, for example, spiro 6Φ. The material of the electron transport layer of the organic light emitting element  10 B is, for example, Alq 3 . 
         [0083]    The second electrode  16  has a thickness of, for example, 5 nm to 50 nm and is made of a metal element or an alloy of aluminum (Al), magnesium (Mg), calcium (Ca), sodium (Na) or the like. In particular, an alloy of magnesium and silver (MgAg alloy) or an alloy of aluminum (Al) and lithium (Li) (AlLi alloy) is preferable. The second electrode  16  may be made of ITO (indium tin oxide) or IZO (indium zinc composite oxide). 
         [0000]    The protection film  17  has a thickness of, for example, 500 nm to 10,000 nm and is made of silicon oxide (SiO 2 ), silicon nitride (SiN), or the like. 
         [0084]    The sealing panel  20  is positioned on the second electrode  16  side of the light emission panel  10  and has a sealing substrate  21  for sealing the organic light emitting elements  10 R,  10 G, and  10 B together with an adhesion layer  42 . The sealing substrate  21  is made of a material such as glass transparent to light generated by the organic light emitting elements  10 R,  10 G, and  10 G. The sealing substrate  21  is provided with, for example, a color filter  22  and a light shield film  23  as a black matrix, extracts light generated by the organic light emitting elements  10 R,  10 G, and  10 B, and absorbs external light reflected by the organic light emitting elements  10 R,  10 G, and  10 B and the wirings between the organic light emitting elements  10 R,  10 G, and  10 B, thereby improving contrast. Over the color filter  22  and the light shield film  23 , an overcoat layer (not illustrated) made of an acrylic resin, an epoxy resin, or the like is provided to increase flatness. 
         [0085]    The color filter  22  may be provided on any of the faces of the sealing substrate  21  but is preferably provided on the light emission panel  10  side. The reason is that the color filter  22  is not exposed to the surface and is protected by the adhesion layer  42 . The color filter  22  has a red filter  22 R, a green filter  22 G, and a blue filter  22 B which are disposed in order in correspondence with the organic light emitting elements  10 R,  10 G, and  10 B. 
         [0086]    The red filter  22 R, the green filter  22 G, and the blue filter  22 B each having a rectangular shape are formed tightly. Each of the red filter  22 R, the green filter  22 G, and the blue filter  22 B is made of a resin in which a pigment is mixed. By selecting the pigment, adjustment is made so that the light transmittance in the wavelength region of red, green, or blue as a target is high and the light transmittance in the other wavelength regions is low. 
         [0087]    The light shield film  23  is provided along the boundary of the red filter  22 R, the green filter  22 G, and the blue filter  22 B. The light shield film  23  is, for example, a resin film of black in which a colorant of black is mixed and having optical density of 1 or higher, or a thin film filter using interference of a thin film. It is preferable to construct the light shield film  23  by a resin film of black for a reason that the film may be easily formed at low cost. The thin film filter is obtained by, for example, stacking at least on thin film made of a metal, a metal nitride, or a metal oxide and attenuates light by using interference of the thin film. Concretely, the thin film filter is obtained by alternately stacking chromium and chromium oxide (III) (Cr 2 O 3 ). 
         [0088]    The reflector  30  is provided on the light extraction side of the light emission panel  10 , that is, on the second electrode  16  side in order to increase the efficiency of extracting light from the organic light emitting elements  10 R,  10 G, and  10 B. The reflector  30  includes a base  31  having a first surface  31 A and a second surface  31 B which face each other. The second surface  31 B of the base  31  is provided with a plurality of projected reflection elements  31 C. The base  31  may be made of ultraviolet curable resin or thermoset resin. Further, the base  31  may be obtained by forming a resin layer made of an ultraviolet curable resin or a thermoset resin on a glass substrate, and the reflection elements  31 C are provided partly or entirely in the thickness direction of the resin layer. 
         [0089]    A light absorption film  32  is formed in a planarized region  31 D other than the reflection elements  31 C in the second surface  31 B of the base  31 . The light absorption film  32  is provided to absorb outside light “h” which passed through the light shield film  23 . The light absorption film  32  has, for example, a thickness of about 500 nm and is made of a material having high absorptance of light, such as a-Si or p-Si. With the configuration, in the display device, deterioration in contrast caused by retro-reflection of the outside light is suppressed. 
         [0090]    A reflector film  33  is formed in a side face  31 E of the reflective element  31 C. The reflector film  33  is provided to make light incident from a front end face  31 F of the reflective element  31 C. For example, the reflector film  33  has a thickness of about 400 nm and is made of aluminum (Al) or an alloy containing aluminum (Al). The reflector film  33  may be provided not only on the side face  31 E of the reflective element  31 C but also on the light absorption film  32 . 
         [0091]    The periphery of the reflective element  31 C is buried by a burying layer  34 . The burying layer  34  is provided to prevent collapse or the like of the reflective element  31 C at the time of polishing the front end of the reflective element  31 C in a manufacturing process which will be described later and to increase the yield. The burying layer  34  is made of, for example, an acrylic or epoxy-based ultraviolet curable resin, thermoset resin, or the like. By providing the burying layer  34 , the reflector  30  and the protection film  17  of the light emission panel  10  are adhered to each other in a state where they face each other. There is also an advantage such that stay of moisture and air component is suppressed more than the case where the reflector  30  and the protection film  17  are directly adhered with the adhesion layer  41  without providing the burying layer  34 . 
         [0092]    For example, the display device may be manufactured as follows. 
         [0093]      FIGS. 4A and 4B  to  FIGS. 18A to 18C  illustrate a method of manufacturing the display device in process order. First, as illustrated in  FIG. 4A , on the drive substrate  11  made of the above-described material, the pixel drive circuit  140  is formed. 
         [0094]    As illustrated in  FIG. 4B , the planarization layer  12  made of, for example, photosensitive polyimide is applied on the entire surface of the drive substrate  11  by spin coating or the like and is patterned in a predetermined shape by exposing and developing process, and connection holes  12 A are formed. After that, baking process is performed. 
         [0095]    Subsequently, as illustrated in  FIG. 5A , the first electrode  13  having the above-described thickness and made of the above-described material is formed on the planarization layer  12  by, for example, sputtering and is patterned in a predetermined shape by, for example, the lithography technique and etching. By the operation, the plurality of first electrodes  13  are formed on the planarization layer  12 . 
         [0096]    As illustrated in  FIG. 5B , a photosensitive resin is applied on the entire surface of the drive substrate  11 , openings are formed by the exposing and developing process, and baking operation is performed, thereby forming the insulating film  14 . 
         [0097]    As illustrated in  FIG. 6A , for example, by the vacuum deposition method, the hole injection layer, the hole transport layer, the light emission layer, and the electron transport layer of the organic light emitting element  10 R having the above-described thickness and made of the above-described material are sequentially formed, and the organic layer  15  of the organic light emitting layer  10 R is formed. After that, as illustrated also in  FIG. 6A , in a manner similar to the organic layer  15  of the organic light emitting element  10 R, the hole injection layer, the hole transport layer, the light emission layer, and the electron transport layer of the organic light emitting element  10 R having the above-described thickness and made of the above-described material are sequentially formed, thereby forming the organic layer  15  of the organic light emitting element  10 G. Subsequently, as illustrated also in  FIG. 6A , in a manner similar to the organic layer  15  of the organic light emitting element  10 R, the hole injection layer, the hole transport layer, the light emission layer, and the electron transport layer having the above-described thickness and made of the above-described material are sequentially formed, thereby forming the organic layer  15  of the organic light emitting element  10 B. 
         [0098]    After forming the organic layer  15  of the organic light emitting elements  10 R,  10 G, and  10 B, as illustrated in  FIG. 6B , the second electrode  16  having the above-described thickness and made of the above-described material is formed on the entire surface of the drive substrate  11  by the evaporation method or the like. In such a manner, the organic light emitting elements  10 R,  10 G, and  10 B illustrated in  FIG. 3  are formed. 
         [0099]    Next, as illustrated in  FIG. 7 , the protection film  17  having the above-described thickness and made of the above-described material is formed on the second electrode  16 . As a result, the light emission panel  10  illustrated in  FIG. 3  is formed. 
         [0100]    The reflector  30  is also formed. First, as illustrated in  FIG. 8A , a resist is applied on a glass substrate  61  by using a slit coater or the like to form a resist film  62 A. Subsequently, as illustrated in  FIG. 8B , for example, by using the photolithography technique, the resist film  62 A is exposed with ultraviolet light UV via a photomask  63  and developed to thereby pattern the resist film  62 A. As illustrated in  FIG. 8C , a mother die  64  in which projections  62  are formed on the glass substrate  61  is formed. 
         [0101]    Subsequently, as illustrated in  FIG. 9A , a mold  65  made of nickel (Ni) is formed by electrocasting using the mother die  64 . As illustrated in  FIG. 9B , by photo imprint (photo-polymerization (2P)) or thermal imprint using the mold  65 , the base  31  is formed. In such a manner, a number of bases  31  are copied (replicated) from a single mold  65  at low cost. Productivity improves, and it is preferable for mass production. 
         [0102]    In the case of the photo imprint, first, as illustrated in  FIG. 10A , a resin layer  72  made of an ultraviolet curable resin is formed on a glass substrate  71  made of, for example, BK-7 glass. The resin layer  72  is made come into contact with the mold  65 , and ultraviolet rays are emitted. The irradiation condition is, for example, 300 mJ×30 pass (9 J). After that, the mold  65  is released, thereby forming the base  31  having the reflective elements  31 C as illustrated in  FIG. 10B . 
         [0103]    In the case of thermal imprint, first, as illustrated in  FIG. 11A , a resin  73  such as PDMS (Poly-Dimethyl-Siloxane) is injected from a vessel  73 A into the mold  65  and is thermally cured. As the PDMS, concretely, for example, “Sylgard (registered trademark) 184” manufactured by Dow Corning Corporation may be used. Curing conditions may be set to, for example, 58° C. and one hour. After that, as illustrated in  FIG. 11B , by releasing the resultant from the mold  65 , the base  31  having the reflective elements  31 C is formed. 
         [0104]    After formation of the base  31 , as illustrated in  FIG. 12A , a light absorption material film  32 A made of a-Si, p-Si, or the like is formed on the surface of the base  31  by, for example, sputtering. At this time, as illustrated in  FIG. 12B , a film forming material  32 A 1  is deposited in a direction almost perpendicular to the second surface  31 B of the base  31 . Consequently, the film forming rate in the side face  31 E of the reflective element  31 C and that in the planarized region  31 D other than the reflective elements  31 C in the second surface  31 B of the base  31  and the front end face  31 F of the reflective elements  31 C are different from each other. The film forming rate in the side face  31 E of the reflective element  31 C is low. 
         [0105]    After forming the light absorption material film  32 A, as illustrated in  FIGS. 13A and 13B , the light absorption material film  32 A on the side face  31 E of the reflective element  31 C is removed by, for example, isotropic etching using XeF2. 
         [0106]    After removal of the light absorption material film  32 A on the side face  31 E of the reflective element  31 C, as illustrated in  FIGS. 14A and 14B , a reflecting material film  33 A is formed on the surface of the base  31 . Subsequently, as illustrated in  FIGS. 15A and 15B , for example, by spin coating, the periphery of the reflective element  31 C is buried with the burying layer  34  made of the above-described material. After that, by polishing the front end part of the reflective element  31 C, the reflecting material film  33 A and the light absorption material film  32 A on the front end face  31 F of the reflective element  31 C are removed. As illustrated in  FIGS. 16A and 16B , the light absorption film  32  made of the light absorption material film  32 A is formed in the planarized region  31 D. The reflector film  33  made of the reflecting material film  33 A is formed on the side face  31 E of the reflective element  31 C and the light absorption film  32 . By the above operation, the reflector  30  illustrated in  FIG. 1  is formed. 
         [0107]    After formation of the reflector  30  and the light emission panel  10 , as illustrated in  FIG. 17 , the adhesion layer  41  is formed on the protection film  17  of the light emission panel  10 . The reflector  30  is disposed on the light extraction side (the second electrode  16  side) of the light emission panel  10  in a state where the front end face  31 F of the reflective element  31 C faces each of the organic light emitting elements  10 R,  10 G, and  10 B, and is adhered by the adhesion layer  41 . 
         [0108]    As illustrated in  FIG. 18A , the light shield film  23  made of the above-described material is formed on the sealing substrate  21  made of the above-described material and is patterned in a predetermined shape. Subsequently, as illustrated in  FIG. 18B , the material of the red filter  22 R is coated by spin coating or the like on the sealing substrate  21 , patterned by the photolithography technique, and baked, thereby forming the red filter  22 R. At the time of patterning, the periphery of the red filter  22 R may lie on the light shield layer  23 . After that, as illustrated in  FIG. 18C , the blue filter  22 B and the green filter  22 G are sequentially formed in a manner similar to the red filter  22 R, thereby forming the sealing panel  20 . 
         [0109]    Subsequently, the adhesive layer  42  is formed on the reflector  30 , and the reflector  30  and the sealing panel  20  are adhered to each other with the adhesion layer  42  therebetween. By the above operations, the display device illustrated in  FIGS. 1 to 3  is completed. 
         [0110]    The display device may be also manufactured, for example, as follows. 
         [0111]    First, in a manner similar to the above-described manufacturing method, the light emission panel  10  is formed by the processes illustrated in  FIGS. 4A and 4B  to  FIG. 7 . 
         [0112]    The reflector  30  is also formed.  FIGS. 19A to 19C  to  FIGS. 24A and 24B  illustrate another method of manufacturing the reflector  30 . First, as illustrated in  FIG. 19A , in a manner similar to the above-described manufacturing method, the resist film  62 A is formed on the glass substrate  61  by the process illustrated in  FIG. 8A . At that time, as the material of the resist film  62 A, a permanent resist represented by “SU-8 (trade name)” manufactured by Nippon Kayaku Co., Ltd. is used. Subsequently, as illustrated in  FIG. 19B , in a manner similar to the above-described manufacturing method, the resist film  62 A is patterned by the process illustrated in  FIG. 8B . As illustrated in  FIG. 19C , the reflective element  31 C made by the resist film  62 A is formed on the glass substrate  61 , and the resultant is usable as the base  31 . 
         [0113]    As illustrated in  FIGS. 20A and 20B , in a manner similar to the above-described manufacturing method, the light absorption material film  32 A is formed on the surface of the base  31  by the processes illustrated in  FIGS. 12A and 12B . 
         [0114]    After that, as illustrated in  FIGS. 21A and 21B , in a manner similar to the above-described manufacturing method, the light absorption material film  32 A on the side face  31 E of the reflective element  31 C is removed by isotropic etching by the processes illustrated in  FIGS. 13A and 13B . 
         [0115]    After removal of the light absorption material film  32 A on the side face  31 E of the reflective element  31 C, as illustrated in  FIGS. 22A and 22B , the reflecting material film  33 A is formed on the second surface  31 B of the base  31  by the processes illustrated in  FIGS. 14A and 14B  in a manner similar to the above-described manufacturing method. 
         [0116]    After formation of the reflecting material film  33 A, as illustrated in  FIGS. 23A and 23B , in a manner similar to the above-described manufacturing method, the periphery of the reflective element  31 C is buried by the burying layer  34  by the processes illustrated in  FIGS. 15A and 15B . Subsequently, as illustrated in  FIGS. 24A and 24B , in a manner similar to the above-described manufacturing method, by polishing the front end part of the reflective element  31 C by the processes illustrated in  FIGS. 16A and 16B , the light absorption film  32  made by the light absorption material film  32 A is formed in the planarized region  31 D. On the side face  31 E of the reflective element  31 C and the light absorption film  32 , a reflector film  33  made by a reflecting material film is formed. In such a manner, the reflector  30  illustrated in  FIG. 3  is formed. 
         [0117]    After formation of the reflector  30  and the light emission panel  10 , in a manner similar to the above-described manufacturing method, by the process illustrated in  FIG. 17 , the reflector  30  is disposed on the light extraction side (the second electrode  16  side) of the light emission panel  10  and is adhered by the adhesion layer  41 . 
         [0118]    In a manner similar to the above-described manufacturing method, by the processes illustrated in  FIGS. 18A to 18C , the sealing panel  20  is formed, and the reflector  30  and the sealing panel  20  are adhered to each other with the adhesion layer  42  therebetween. By the operations, the display device illustrated in  FIGS. 1 to 3  is completed. 
         [0119]    In the display device, a scan signal is supplied from the scan line drive circuit  130  to each of the pixels via the gate electrode of the write transistor Tr 2 , and an image signal from the signal line drive circuit  120  is held in the retention capacitor Cs via the write transistor Tr 2 . That is, the drive transistor Tr 1  is on/off-controlled in response to the signal held in the retention capacitor Cs. Under the control, the drive current Id is injected to the organic light emitting elements  10 R,  10 G, and  10 B, recombination of holes and electrons occurs, and light is generated. The light passes through the second electrode  16 , the reflector  30 , the color filter  22 , and the sealing substrate  21  and is extracted. 
         [0120]    Concretely, light generated by the organic light emitting elements  10 R,  10 G, and  10 B enters from the front end face  31 F of the reflective element  31 C, is reflected by the reflector film  33  formed on the side face  31 E of the reflective element  31 , and is extracted to the outside. Therefore, the light extraction efficiency increases, and luminance improves. Since the light absorption film  32  is formed in the planarized region  31 D in the second surface  31 B of the base  31 , the outside light “h” passed through the light shield film  23  is absorbed by the light absorption film  32 . Therefore, retro-reflection of the outside light by the reflector film  33  is suppressed, and stray light is reduced. Thus, reduction in contrast is suppressed. 
         [0121]    In the display device of the embodiment as described above, the light absorption film  32  is formed in the planarized region  31 D in the second surface  31 B of the base  31  of the reflector  30 . Consequently, the outside light is absorbed by the light absorption film  32 , and contrast reduction caused by retro-reflection of outside light is suppressed. 
         [0122]    In the method of manufacturing the display device of the embodiment, in the process of forming the reflector  30 , the light absorption material film  32 A is formed in the second surface  31 B of the base  31 . The light absorption material film  32 A on the side face  31 E of the reflective element  31 C is removed by isotropic etching. After that, the reflecting material film  33 A is formed in the second surface  31 B in the base  31 , and the light absorption material film  32 A and the reflecting material film  33 A at the front end face  31 F of the reflecting element  31 C are removed. Thus, the display device of the embodiment is manufactured by simple processes. 
       Second Embodiment 
       [0123]      FIG. 25  illustrates a sectional configuration of a display device according to a second embodiment of the present invention. The display device of the embodiment has configuration, action, and effect similar to those of the foregoing first embodiment except for a color-filter-less structure which does not have the sealing panel  20  and the adhesion layer  42 , and may be manufactured similarly. 
       Third Embodiment 
       [0124]      FIG. 26  illustrates a sectional configuration of a display device according to a third embodiment of the present invention. The display device of the embodiment has a configuration similar to that of the first embodiment except that it has a color-filter-integrated reflector in which the sealing panel  20  is integrated with the reflector  30 , and the color filter  22  is provided on the bottom face of the reflective element  31 C. 
         [0125]    The display device may be manufactured, for example, as follows. 
         [0126]    First, in a manner similar to the first embodiment, by the processes illustrated in  FIGS. 4A and 4B  to  FIG. 7 , the light emission panel  10  is formed. In a manner similar to the first embodiment, by the process illustrated in  FIGS. 18A to 18C , the sealing panel  20  is formed. 
         [0127]    Next, the reflector  30  is formed by any of the two manufacturing methods described in the first embodiment. By using the sealing panel  20  as the glass substrate  71  in the photo imprint method illustrated in  FIGS. 10A and 10B , or the glass substrate  61  illustrated in  FIG. 19A , the color filter  22  is formed on the bottom face of the reflective element  31 C. 
         [0128]    Subsequently, in a manner similar to the first embodiment, the reflector  30  is disposed on the light extraction side (the second electrode  16  side) of the light emission panel  10  and is adhered by the adhesion layer  41 . By the above operation, the display device illustrated in  FIG. 26  is completed. 
         [0129]    Since the color filter  22  is formed on the bottom face of the reflective element  31 C, the sealing panel  20  and the reflector  30  are integrated, the number of parts may be reduced as compared with that in the first embodiment, and the adhering process may be also reduced. In addition, it is unnecessary to detach the color filter  22  in order to decrease cost, and there is no fear that performance deterioration such as contrast reduction or deterioration in visibility is caused. By providing the reflector  30 , luminance is raised without increasing current injection, and the reliability of device life and the like are improved. 
         [0130]    In the embodiment, in addition to the action and effect of the first embodiment, the number of parts is allowed to be reduced, and the number of alignment times for adhesion is allowed to be decreased. Therefore, it is advantageous from the viewpoints of manufacturing cost, takt time, yield, and the like. 
       Fourth Embodiment 
       [0131]      FIG. 27  shows a sectional configuration of a display device according to a fourth embodiment. In the display device, the light absorption film  32  is formed on the planarized region  31 D and the reflector film  33  on the side face  31 E of the reflective element  31 C. The light absorption film  32  formed on the reflector film  33  absorbs a light component which does not enter the front end face  31 F in the reflective element  31 C, in light generated by the organic light emitting elements  10 R,  10 G, and  10 B. With the configuration, the light component which did not enter the reflective element  31 C is reflected by the reflector film  33  of the side face  31 E of the adjacent reflective element  31 C and becomes stray light, and it suppresses that the stray light causes mixture of a color to an adjacent pixel. Except for this, the display device of the embodiment has a configuration similar to that of the foregoing first embodiment. 
         [0132]    The display device may be manufactured, for example, as follows. 
         [0133]      FIGS. 28A to 28C  to  FIG. 35  illustrate the method of manufacturing the display device in process order. The manufacturing process similar to that of the first embodiment will be described with reference to  FIGS. 4A and 4B  to  FIG. 7  and  FIGS. 18A to 18C . 
         [0134]    First, in a manner similar to the first embodiment, the light emission panel  10  is formed by the processes illustrated in  FIGS. 4A and 4B  to  FIG. 7 . 
         [0135]    The reflector  30  is also formed. First, as illustrated in  FIG. 28A , in a manner similar to the first embodiment, the resist film  62 A is formed on the glass substrate  61  by the process illustrated in  FIG. 8A . 
         [0136]    As illustrated in  FIG. 28B , in a manner similar to the first embodiment, the resist film  62 A is patterned by the process illustrated in  FIG. 8B . By the process, the mother die  64  in which the reflective elements  62  are formed is formed on the glass substrate  61  as illustrated in  FIG. 28C . 
         [0137]    As illustrated in  FIG. 29A , in a manner similar to the first embodiment, by the process illustrated in  FIG. 9A , the mold  65  is formed by electrocasting using the mother die  64 . After that, as illustrated in  FIG. 29B , in a manner similar to the first embodiment, by the processes illustrated in  FIG. 9B  to  FIG. 11 , by photo imprint or thermal imprint using the mold  65 , the base  31  is formed. The base may be formed by the processes described with reference to  FIGS. 19A to 19C  in the first embodiment. 
         [0138]    After formation of the base  31 , as illustrated in  FIG. 30A , the reflector film  33 A made of aluminum (Al) or an alloy containing aluminum (Al) is formed on the second surface  31 B of the base  31 . At this time, as illustrated in  FIG. 30B , a film forming material  33 A 1  is deposited in a direction almost perpendicular to the second surface  31 B of the base  31 . Consequently, the film forming rate in the side face  31 E of the reflective element  31 C and that in the planarized region  31 D in the second surface  31 B of the base  31  and the front end face  31 F of the reflective element  31 C are different from each other. The film forming rate in the side face  31 E of the reflective element  31 C is low. 
         [0139]    After forming the reflecting material film  33 A, as illustrated in  FIGS. 31A and 31B , the reflecting material film  33 A on the planarized region  31 D and the front end face  31 F of the reflective element  31 C is removed by anisotropic etching. Concretely, the bias of the base  31  is adjusted by a method of, for example, RIE (Reactive Ion Etching), and the entire surface is etched under a condition so that the etching rate in the planarized region  31 D and the front end face  31 F of the reflective element  31 C and that in the side face  31 E of the reflective element  31 C are different from each other. Etching species contain, for example, Cl, F, or Br ions. Concretely, for example, a Cl2-based etching gas may be used. Ion species having high linear reactivity (short time constant) reach the base  31 , the reflecting material film  33 A on the planarized region  31 D and the front end face  31 F of the reflective element  31 C is etched off first, and the reflecting material film  33 B remains only on the side faces  31 E of the reflecting element  31 C. 
         [0140]    After removal of the reflecting material film  33 A on the planarized region  31 D and the front end face  31 F of the reflecting element  31 C, as illustrated in  FIGS. 32A and 32B , the light absorption material film  32 A is formed on the surface of the base  31 . The film forming method is not limited to a method such as evaporation or sputtering but may be any method which is capable of realizing both properly high productivity and properly low manufacturing cost such as spin coating, spraying, slit coating, dip coating, squeegee printing, or the like. Subsequently, as illustrated in  FIGS. 33A and 33B , the periphery of the reflective element  31 C is buried with the burying layer  34 . After that, as illustrated in  FIGS. 34A and 34B , by polishing the front end part of the reflective element  31 C, the reflector film  33  made by the reflecting material film  33 A is formed on the side face  31 E of the reflective element  31 C. The light absorption film  32  made by the light absorption material film  32 A is formed on the planarized region  31 D and the reflector film  33 . As a result, the reflector  30  illustrated in  FIG. 27  is formed. 
         [0141]    After formation of the reflector  30  and the light emission panel  10 , as illustrated in  FIG. 35 , in a manner similar to the first embodiment, the reflector  30  is disposed on the light extraction side (the second electrode  16  side) of the light emission panel  10 , and is adhered by the adhesion layer  41 . 
         [0142]    In a manner similar to the first embodiment, by the processes illustrated in  FIGS. 18A to 18C , the sealing panel  20  is formed. The reflector  30  and the sealing panel  20  are adhered to each other with the adhesive layer  42  therebetween. By the above processes, the display device illustrated in  FIG. 27  is completed. 
         [0143]    In the display device, in a manner similar to the first embodiment, light is generated by the organic light emitting elements  10 R,  10 G, and  10 B, and the light enters from the front end face  31 F of the reflective element  31 C, is reflected by the reflector film  33  formed on the side face  31 E of the reflective element  31 C, and is extracted to the outside. Therefore, the light extraction efficiency increases, and luminance improves. Since the light absorption film  32  is formed in the planarized region  31 D in the second surface  31 B of the base  31 , the outside light passed through the light shield film  23  is absorbed by the light absorption film  32 . Therefore, retro-reflection of the outside light by the reflector film  33  is suppressed, stray light is reduced, and reduction in contrast is suppressed. The light absorption film  32  is formed also on the reflector film  33  on the side face  31 E of the reflective element  31 C, the light component which does not enter the front end face  31 F of the reflective element  31 C, in the light generated by the organic light emitting elements  10 R,  10 G, and  10 B is absorbed by the light absorption film  32 . The configuration suppresses that the light component which did not enter the reflective element  31 C is reflected by the reflector film  33  and causes mixture of a color to an adjacent pixel. 
         [0144]    In the display device of the embodiment, the light absorption film  32  is formed on the planarized region  31 D in the second surface  31 B of the base  31  of the reflector  30 . Consequently, the outside light is absorbed by the light absorption film  32 , and contrast reduction caused by retro-reflection of outside light is suppressed. 
         [0145]    Since the light absorption film  32  is formed on the reflector film  33  on the side face  31 E of the reflective element  31 C, the light component which did not enter the front end face  31 F of the reflective element  31 C, in the light generated by the organic light emitting elements  10 R,  10 G, and  10 B is absorbed and the configuration suppresses that the light component causes mixture of a color to an adjacent pixel. In particular, by applying the embodiment to the color-filter-less structure as illustrated in  FIGS. 13A and 13B  of the second embodiment, deterioration in contrast and picture quality may be suppressed also in the color-filter-less structure, and visibility is allowed to be improved. 
         [0146]    In the method of manufacturing the display device of the embodiment, in the process of forming the reflector  30 , the reflecting material film  33 A is formed on the second surface  31 B of the base  31 . The reflecting material film  33 A on the planarized region  31 D and the front end face  31 F of the reflective element  31 C is removed by isotropic etching. After that, the light absorbing material film  32 A is formed on the surface of the base  31 , and the light absorption material film  32 A and the reflecting material film  33 A on the front end face  31 F of the reflecting element  31 C are removed. Thus, the display device of the embodiment can be manufactured by simple processes. 
         [0147]    Also in the embodiment, like in the third embodiment, by using the sealing panel  20  as the glass substrate  71  in the photo imprint method illustrated in  FIGS. 10A and 10B , or the glass substrate  61  illustrated in  FIG. 19A , the color filter  22  may be formed on the bottom face of the reflective element  31 C. 
       MODULES AND APPLICATION EXAMPLES 
       [0148]    Hereinbelow, application examples of the display devices explained in the foregoing embodiments will be described. The display devices of the foregoing embodiments is applicable as display devices of electronic devices in all of fields for displaying a video signal entered from the outside or generated internally as an image or a video image, such as a television apparatus, a digital camera, a notebook-sized personal computer, a portable terminal device such as a cellular phone, and a video camera. 
         [0149]    Modules 
         [0150]    The display device of any of the embodiments is assembled, for example, as a module illustrated in  FIG. 36 , in various electronic devices in application examples 1 to 5 and the like which will be described later. The module has, for example, at one side of the substrate  11 , a region  210  exposed from the sealing panel  20  and the adhesive layer. To the exposed region  210 , wirings of the signal line drive circuit  120  and the scan line drive circuit  130  are extended and external connection terminals (not illustrated) are formed. The external connection terminal may be provided with a flexible printed circuit (FPC)  220  for inputting/outputting signals. 
       Application Example 1 
       [0151]      FIG. 37  illustrates the appearance of a television apparatus to which the display device of the foregoing embodiment is applied. The television apparatus has, for example, a video image display screen  300  including a front panel  310  and a filter glass  320 . The video image display screen  300  is constructed by the display device according to any of the embodiments. 
       Application Example 2 
       [0152]      FIGS. 38A and 38B  illustrate the appearance of a digital camera to which the display devices of the embodiments are applied. The digital camera has, for example, a light emission unit  410  for flash, a display unit  420 , a menu switch  430 , and a shutter button  440 . The display unit  420  is constructed by the display device according to any of the foregoing embodiments. 
       Application Example 3 
       [0153]      FIG. 39  illustrates the appearance of a notebook-sized personal computer to which the display device of any of the foregoing embodiments is applied. The notebook-sized personal computer has, for example, a body  510 , a keyboard  520  for operation of entering characters and the like, and a display unit  530  for displaying an image. The display unit  530  is constructed by the display device according to any of the foregoing embodiments. 
       Application Example 4 
       [0154]      FIG. 40  illustrates the appearance of a video camera to which the display device of any of the embodiments is applied. The video camera has, for example, a body  610 , a lens  620  for shooting a subject, provided on the front face of the body  610 , a shooting start-stop switch  630 , and a display unit  640 . The display unit  640  is constructed by the display device according to any of the embodiments. 
       Application Example 5 
       [0155]      FIGS. 41A to 41G  illustrate the appearance of a cellular phone to which the display device of any of the embodiments is applied. The cellular phone is obtained by, for example, coupling an upper-side casing  710  and a lower-side casing  720  via a coupling unit (hinge)  730  and has a display  740 , a sub-display  750 , a picture light  760 , and a camera  770 . The display  740  or the sub-display  750  is constructed by the display device according to any of the embodiments. 
         [0156]    The present application has been described above by the embodiments. However, the application is not limited to the embodiments but may be variously modified. For example, the present application is not limited to the materials and thicknesses of the layers, the film forming methods, film forming conditions, and the like described in the embodiments, but other materials and thicknesses, other film forming methods, and other film forming conditions may be used. For example, the method of coating the burying layer  34  is not limited to the spin coating but may be any method as long as it satisfies both properly high productivity and properly low manufacturing cost such as spraying, slit coating, dip coating, squeegee printing or the like. 
         [0157]    Further, in the foregoing embodiments, the configuration of the organic light emitting elements  10 R,  10 B, and  10 G and the reflector  30  has been concretely described. All of the layers do not have to be provided, and another layer may be also provided. For example, the burying layer  34  of the reflector  30  does not have to be always provided and may not be provided as illustrated in  FIG. 42 . 
         [0158]    The present application is also applicable to the case where, as illustrated in  FIG. 43 , the reflector film  33  is not provided and light is totally reflected by the interface between the side face  31 E of the reflective element  31 C and an air layer  35  in the periphery. In this case, the display device may be manufactured in a manner similar to any of the foregoing embodiments except that the reflecting material film  33 A and the burying layer  34  are not formed. 
         [0159]    Further, the present application is also applicable to a self-luminous light emitting device using, except for the organic light emitting element, another display element such as an LED (Light Emitting Diode), an FED (Field Emission Display), an inorganic electroluminescence element, or the like. 
         [0160]    In addition, the display device of the present invention is applicable to a light emitting device for a purpose other than display, such as an illuminating device. 
         [0161]    It should be understood that various changes and modifications to the presently preferred embodiments described herein will be apparent to those skilled in the art. Such changes and modifications can be made without departing from the spirit and scope and without diminishing its intended advantages. It is therefore intended that such changes and modifications be covered by the appended claims.