JP2013165014A - Organic el device and electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an organic EL device capable of improving display quality, and an electronic apparatus.SOLUTION: The organic EL device includes: light-emitting elements 27 (27R, 27G and 27B) which include reflection films 41 (41R, 41G and 41B), pixel electrodes 24 (24R, 24G and 24B), a light-emitting layer 26, and a counter electrode 25 and resonates light between the reflection films 41 and the counter electrode 25; and an insulating film 56 having openings 101, 102 and 103 for defining light-emitting regions on the pixel electrodes 24. The peripheral edges of the reflection films 41 are arranged inside the openings 101, 102 and 103 in a plan view, respectively.

Description

  The present invention relates to an organic EL device having a resonance structure and an electronic apparatus.

  The organic EL (electroluminescence) device has a structure in which a light emitting layer made of a light emitting material is sandwiched between an anode (pixel electrode) and a cathode (counter electrode). Specifically, for example, as described in Patent Document 1, a partition wall having an opening for defining a light emitting region is provided on the anode.

  Further, as described in Patent Document 2, a metal reflection film is provided on the opposite side of the anode from the light-emitting layer, and light emitted from the light-emitting layer is reciprocated between the reflection film and the cathode so that the peak intensity is high and the width is high. A structure for extracting light having a narrow spectrum is known. By providing such an optical resonant structure, the color reproducibility of light emission can be improved.

  As a method for manufacturing the organic EL device, for example, an anode is formed on a reflective film, and a transparent conductive film is laminated thereon in order to change the optical path length according to each color. Then, a light emitting layer and a cathode are sequentially formed thereon. This makes it possible to configure the optical path length to be optimum for each color, and improve color reproducibility.

JP 2007-188653 A JP 2007-108248 A

  However, since the optical distance is different between the light emitting layer in the inner region of the opening and the light emitting layer on the partition wall at the periphery of the opening and the resonance wavelength changes, the value of the optimum optical path length (resonance) is shifted. Therefore, there is a problem that different colors emit light at the periphery of the opening (light emitting region). That is, there is a problem that display quality is deteriorated.

  An aspect of the present invention has been made to solve at least a part of the above problems, and can be realized as the following forms or application examples.

  Application Example 1 An organic EL device according to this application example includes a first reflective film, a first pixel electrode, a first light-emitting layer, and a counter electrode, and between the first reflective film and the counter electrode. A first pixel that resonates light of the first color; and an insulating film having a first opening that defines a light emitting region on the first pixel electrode, wherein at least a part of the periphery of the first reflective film is Further, it is arranged on the inner side of the first opening in a plan view.

  According to this application example, it is possible to reduce the emission of light deviated from the resonance wavelength generated in the vicinity of the first opening. In other words, since at least a part of the periphery of the reflective film is disposed inside the first opening, the distance between the part of the light emitting region and the cathode and the distance between the center of the light emitting region and the cathode are substantially the same. Can be made. Therefore, the optical distance (optical path length) can be made the same, and the color of at least a part of the periphery of the opening and the center of the opening can be made the same. Thereby, it becomes possible to suppress mixing of the color of a light emission part and a peripheral part, and it can raise the purity of a color. As a result, display quality can be improved.

  Application Example 2 In the organic EL device according to the application example described above, the portion of the first reflective film along the long side of the first opening is planarly arranged on the inner side of the first opening. It is preferable.

  According to this application example, since the portion of the reflective film along the long side of the light emitting area where the color is easily noticeable as the light emitting color is arranged on the inner side of the first opening, the color is the same as the central portion of the light emitting area. In addition, it is possible to make the color conspicuous as a luminescent color, and display quality can be improved.

  Application Example 3 In the organic EL device according to the application example described above, it is preferable that at least a part of the first reflective film does not overlap the inclined surface of the insulating film in a plane.

  According to this application example, since the inclined surface of the insulating film and a part of the first reflective film are arranged so as not to overlap in plane, the light emitting layer formed on the inclined surface of the insulating film, the inclined surface, It is possible to prevent the emission color from being different due to a change in the position of the light emitting layer in a non-overlapping region.

  Application Example 4 In the organic EL device according to the application example described above, the organic EL device includes a second reflective film, a second pixel electrode, a second light emitting layer, and the counter electrode, and is between the second reflective film and the counter electrode. A second pixel that resonates light of a second color that is a longer wavelength side than the first color, and the insulating film that has a second opening that defines a light emitting region on the second pixel electrode. It is preferable that the gap between the peripheral edge of the first reflective film and the first opening is formed so as to be wider than the gap between the peripheral edge of the second reflective film and the second opening. .

  According to this application example, since the gap between the peripheral edge of the first reflective film and the first opening is wider in plan view, it is possible to suppress color mixing of light emitted from the first opening. For example, the color of light emitted from the first opening is blue. The color of light emitted from the second opening is green or red. That is, it is possible to clearly display a light emitting color (blue) that is relatively difficult to see, and to improve display quality.

  Application Example 5 In the organic EL device according to the application example described above, on the side opposite to the first light emitting layer in the first reflective film, the shape is planarly larger than the shape of the first reflective film and lower than the first reflective film. A first low reflection film having reflectivity is provided, and on the opposite side of the second reflection film from the second light-emitting layer, the planarity is larger than the shape of the second reflection film and lower than the second reflection film. It is preferable to have the 2nd low reflection film which has.

  According to this application example, the first low reflection film having lower reflectivity than the first reflection film is disposed below the first reflection film, so that the first reflection film is planarly disposed around the first reflection film. A low reflection film can be provided, and light from below the first low reflection film can be prevented from entering the first opening. In other words, the first low reflection film is disposed over a region overlapping the inclined surface of the insulating film in a planar manner. Therefore, display quality can be improved. The same applies to the second reflective film side.

  Application Example 6 In the organic EL device according to the application example, the first reflection film and the first low reflection film constitute a part of a first capacitance circuit, and the second reflection film and the second reflection film. The low reflective film preferably constitutes a part of the second capacitor circuit.

  According to this application example, a capacitive circuit can be formed using the reflective film and the low reflective film. Specifically, a capacitor circuit is configured by using an insulating film between the reflective film and the low reflective film as a dielectric film.

  Application Example 7 An electronic apparatus according to this application example includes the organic EL device described above.

  According to this application example, it is possible to emit light from within the opening region, and it is possible to provide an electronic apparatus capable of improving display quality.

FIG. 3 is an equivalent circuit diagram illustrating an electrical configuration of the organic EL device. The schematic plan view which shows the structure of an organic electroluminescent apparatus. The schematic plan view which shows the structure of an organic electroluminescent apparatus. The schematic cross section which shows the structure of an organic electroluminescent apparatus. The schematic diagram which shows a smart phone as an example of the electronic device provided with the organic EL apparatus. The schematic plan view which shows the structure of the organic electroluminescent apparatus of a modification.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described with reference to the drawings. Note that the drawings to be used are appropriately enlarged or reduced so that the part to be described can be recognized.

  In the following embodiments, for example, when “on the substrate” is described, the substrate is disposed so as to be in contact with the substrate, or is disposed on the substrate via another component, or the substrate. It is assumed that a part is arranged so as to be in contact with each other and a part is arranged via another component.

<Configuration of organic EL device>
FIG. 1 is an equivalent circuit diagram showing an electrical configuration of the organic EL device. Hereinafter, the configuration of the organic EL device will be described with reference to FIG. The organic EL device of this embodiment will be described with a top emission structure.

  As shown in FIG. 1, the organic EL device 11 includes a plurality of scanning lines 12, a plurality of data lines 13 extending in a direction intersecting the scanning lines 12, and a plurality of power supply lines 14 extending in parallel to the data lines 13. Are wired in a grid pattern. An area partitioned by the scanning lines 12 and the data lines 13 is configured as a pixel area. The data line 13 is connected to the data line driving circuit 15. The scanning line 12 is connected to the scanning line driving circuit 16.

  Each pixel region holds a switching TFT (Thin Film Transistor) 21 to which a scanning signal is supplied to the gate electrode via the scanning line 12 and a pixel signal supplied from the data line 13 via the switching TFT 21. A storage capacitor 22 is provided, and a driving TFT 23 (hereinafter referred to as “TFT element 23”) to which a pixel signal held by the storage capacitor 22 is supplied to the gate electrode is provided. Further, in each pixel region, when electrically connected to the power supply line 14 via the TFT element 23, a pixel electrode 24 into which a drive current flows from the power supply line 14, a counter electrode 25, and the pixel electrode 24 are opposed to each other. A light emitting functional layer 26 (including a first light emitting layer and a second light emitting layer) sandwiched between the electrodes 25 is provided.

  The organic EL device 11 includes a plurality of light emitting elements 27 (first pixel and second pixel) configured by the pixel electrode 24, the counter electrode 25, and the light emitting functional layer 26. In addition, the organic EL device 11 includes a display area composed of a plurality of light emitting elements 27.

  According to this configuration, when the scanning line 12 is driven and the switching TFT 21 is turned on, the potential of the data line 13 at that time is held in the holding capacitor 22, and the TFT element 23 depends on the state of the holding capacitor 22. ON / OFF state is determined. A current flows from the power supply line 14 to the pixel electrode 24 through the channel of the TFT element 23, and further a current flows to the counter electrode 25 through the light emitting functional layer 26. Here, the conduction state between the source and drain of the TFT element 23, that is, the conduction state of the channel of the TFT element 23 is controlled by the potential of the gate of the TFT element 23. The light emitting functional layer 26 emits light with a luminance corresponding to the amount of current flowing therethrough.

  FIG. 2 is a schematic plan view showing the configuration of the organic EL device. Hereinafter, the configuration of the organic EL device will be described with reference to FIG.

  As shown in FIG. 2, the organic EL device 11 includes a display region 32 (region inside the one-dot chain line in the drawing) and a non-display region 33 (outside the one-dot chain line in the first base material 31 as a substrate made of glass or the like. Region). The display area 32 is provided with an actual display area 32a (area inside the two-dot chain line) and a dummy area 32b (area outside the two-dot chain line in the figure).

  In the actual display area 32a, sub-pixels 34 from which light is emitted are arranged in a matrix. Each of the sub-pixels 34 has R (red: second color), G (green: second color), B (blue: first) in accordance with the operation of the switching TFT 21 and the TFT element 23 (see FIG. 1). 1 color) It is configured to emit each color.

  In the dummy area 32b, a circuit for mainly causing each sub-pixel 34 to emit light is provided. For example, the scanning line driving circuit 16 is disposed along the left side and the right side of the actual display region 32a in the drawing, and the inspection circuit 35 is disposed along the upper side of the actual display region 32a in the drawing.

  A flexible substrate 36 is provided on the lower side of the first base material 31. The flexible substrate 36 is provided with a driving IC 37 connected to each wiring.

  FIG. 3 is a schematic plan view showing the structure of the organic EL device. FIG. 4 is a schematic cross-sectional view taken along the line A-A ′ of the organic EL device shown in FIG. 3. Hereinafter, the structure of the organic EL device will be described with reference to FIGS. In addition, in order to show the configuration in an easy-to-understand manner, the layer thickness, dimensional ratio, angle, and the like of each component are appropriately changed.

  As shown in FIG. 4, the organic EL device 11 has a configuration in which a plurality of light emitting elements 27 (27R, 27G, 27B) (including a first pixel and a second pixel) are arranged on the surface of the first base material 31. It has become. In addition, illustration of the wiring provided on the 1st base material 31, the circuit, the layer in which they are formed, etc. is abbreviate | omitted.

  Each light emitting element 27 (27R, 27G, 27B) is an element that generates light having a wavelength corresponding to one of a plurality of colors (red, green, blue). In the present embodiment, the light emitting element 27R may emit red light, the light emitting element 27G may emit green light, and the light emitting element 27B may emit blue light, or each light emitting element 27 may emit white light. Such a structure may be used.

  As described above, the organic EL device 11 of the present embodiment has a top emission structure in which light generated in each light emitting element 27 travels toward the opposite side to the first base material 31. Therefore, an opaque plate material such as a ceramic or metal sheet can be used as the first base material 31 in addition to a light-transmitting plate material such as glass.

  As shown in FIG. 3, on the first base material 31, reflection films 41 (41 R (second reflection film), 41 G (second reflection film), 41 B (first reflection film)) having different arrangement positions are provided. It arrange | positions corresponding to the light emitting element 27 (27R, 27G, 27B). The reflective film 41 is formed of a material having light reflectivity. Examples of the material include aluminum and silver, or an alloy mainly composed of aluminum or silver.

  Also, below the reflective film 41 (41R, 41G, 41B), a low reflective film 55 (55R (second low level) for preventing the reflected light from the metal film provided on the array substrate 52 from entering the light emitting element 27 side. Reflection film), 55G (second low reflection film), 55B (first low reflection film)). The low reflection film 55 is made of a material that is less reflective than the reflection film 41. Examples of the material of the low reflection film 55 include titanium (Ti), titanium nitride (TiN), copper (Su), amorphous carbon (α-C), and the like. The low reflection film 55 is formed to be slightly larger than the area of the reflection film 41. Specifically, for example, it is provided over a region overlapping a formation region of an insulating film 56 to be described later in plan view.

  An insulating layer 42 is provided so as to cover these reflective films 41 (41R, 41G, 41B) and the low reflective films 55 (55R, 55G, 55B). In addition, since the reflective film 41 is disposed in the insulating layer 42, it is considered that the upper surface of the insulating layer 42 is uneven. Therefore, the upper surface of the insulating layer 42 is preferably planarized by using a polishing method such as CMP (Chemical Mechanical Polishing). Thereby, the unevenness | corrugation on the insulating layer 42 resulting from the difference in the thickness of the reflecting film 41 can be made flat. For example, the insulating layer 42 is formed of an organic resin such as an acrylic resin or a polyimide resin.

  In such a structure, the position (cross-sectional position) of the upper surface (front surface) of the reflective film 41 can be made different for each color by changing the arrangement position of the reflective films 41R, 41G, and 41B. That is, the optical path length is optimal so as to generate the optimum resonance for the emission wavelength required in each opening (light emitting region) 101 (second opening), 102 (second opening), 103 (first opening). An optical resonant structure is adopted.

On the insulating layer 42, light emitting elements 27R, 27G, and 27B are provided. Each of the light emitting elements 27 includes a pixel electrode 24, a light emitting functional layer 26, and a counter electrode 25. The pixel electrode 24 is formed of a transparent oxide conductive material such as ITO (indium tin oxide) or ZnO ₂ . In the present embodiment, the pixel electrode 24 is made of ITO.

  In addition, an insulating film 56 is provided so as to surround the pixel electrode 24 (24R (second pixel electrode), 24G (second pixel electrode), 24B (first pixel electrode)). In other words, openings (light emitting regions) 101, 102, and 103 surrounded by the insulating film 56 are provided on the pixel electrode 24 (24R, 24G, and 24B).

The insulating film 56 is an insulating film that defines the openings 101, 102, and 103, for example, and is made of an inorganic vapor deposition material such as a silicon oxide film (SiO ₂ ). The thickness of the insulating film 56 is, for example, 20 nm. The insulating film 56 has a trapezoidal shape having an inclined surface when viewed in cross section. The openings 101, 102, and 103 in this embodiment are regions surrounded by the insulating film 56. In other words, a current flows through the light emitting functional layer 26 in the openings 101, 102, and 103 to emit light. It will be insulated. The peripheral edges of the reflection films 41R, 41G, and 41B described above are arranged inside the peripheral edges of the openings 101, 102, and 103 surrounded by the insulating film 56.

  Specifically, the peripheral edges (peripheries) of the reflective films 41R, 41G, and 41B may be at the same position as the peripheral edges of the openings 101, 102, and 103 in plan view, but the influence of oblique light or the like is considered. It is preferable that it is arrange | positioned inside the periphery. Further, it is preferable to provide a planar gap between the openings 101, 102, 103 and the reflective film 41 according to the formation accuracy of the insulating film 56.

  The light emitting functional layer 26 is formed so as to cover the pixel electrode 24 and the insulating film 56. Specifically, the light emitting functional layer 26 is continuously formed across the plurality of light emitting elements 27. The characteristics of the light emitting functional layer 26 are common to the plurality of light emitting elements 27. The light emitting functional layer 26 includes, for example, a hole injection layer, a hole transport layer, a light emitting layer (first light emitting layer, second light emitting layer), an electron transport layer, and an electron injection layer.

  The light emitting layer is a layer of an organic light emitting material that exhibits an electroluminescence phenomenon. By applying a voltage between the pixel electrode 24 and the counter electrode 25, holes are injected from the hole transport layer into the light emitting functional layer 26 (light emitting layer), and electrons are injected from the electron transport layer to emit light. Light emission occurs when they recombine in the layer. In the present embodiment, for example, white light is emitted.

  The counter electrode 25 is formed so as to cover the light emitting functional layer 26. In other words, the counter electrode 25 is continuously formed across the plurality of light emitting elements 27. The counter electrode 25 functions as a transflective layer having a property of transmitting part of the light reaching the surface and reflecting the other part (that is, transflective).

  The counter electrode 25 is made of magnesium (Mg), silver (Ag), or a magnesium silver alloy (MgAg) containing these as a main component. In this embodiment, magnesium and silver are co-evaporated on the light emitting functional layer 26 to form the counter electrode 25.

  In the organic EL device 11 in the present embodiment, a resonator structure that resonates light emitted from the light emitting functional layer 26 is formed between the reflective film 41 and the counter electrode 25. That is, the light emitted from the light emitting functional layer 26 reciprocates between the reflection film 41 and the counter electrode 25, and light of a specific wavelength is strengthened by resonance and passes through the counter electrode 25 to be observed (upward in FIG. 4). (Top emission method)

  In the light emitting element 27R, the red light of the white light emitted from the light emitting functional layer 26 is enhanced, the light emitting element 27G is enhanced in green, and the light emitting element 27B is enhanced in blue. 41G, 41B) is adjusted.

  A passivation layer (not shown) made of an inorganic material is formed on the counter electrode 25. The passivation layer is a protective film for preventing water and outside air from entering the light emitting element 27. The passivation layer is formed from an inorganic material having a low gas permeability such as silicon nitride or silicon oxynitride.

  On the element substrate (for example, the first base material 31 to the counter electrode 25) on which the plurality of light emitting elements 27 are formed, the color filter substrate 61 is disposed to face the element substrate. The color filter substrate 61 is formed of a light transmissive material such as glass. A color filter 62 (62R, 62G, 62B) and a light shielding film 63 are formed on the surface of the color filter substrate 61 facing the first base material 31.

  The light shielding film 63 is a light shielding film body in which an opening 64 is formed corresponding to each light emitting element 27. A color filter 62 (62R, 62G, 62B) is formed in the opening 64.

  A red color filter 62R that selectively transmits red light is formed in the opening 64 corresponding to the light emitting element 27R. A green color filter 62G that selectively transmits green light is formed in the opening 64 corresponding to the light emitting element 27G. A blue color filter 62B that selectively transmits blue light is formed in the opening 64 corresponding to the light emitting element 27B.

  The color filter substrate 61 on which the color filter 62 and the light shielding film 63 are formed is bonded to the first base material 31 via the sealing layer 65. The sealing layer 65 is formed from a transparent resin material, for example, a curable resin such as an epoxy resin.

  As described above, since the outer periphery of the reflection films 41R, 41G, and 41B is arranged on the inner side from the periphery of the openings 101, 102, and 103, it is shifted from the resonance wavelength generated in the vicinity of the openings 101 to 103. The emission of light can be reduced. Specifically, the distance between the outer periphery of the reflective film 41 in the openings 101 to 103 and the counter electrode 25 and the distance between the center of the reflective film 41 in the openings 101 to 103 and the counter electrode 25 are made substantially the same. I can do it. Therefore, it becomes possible to make optical distance (optical path length) the same, and the color of the periphery of the opening parts 101-103 and the center part of the opening parts 101-103 can be made the same. As a result, it is possible to suppress the mixture of colors in the openings 101 to 103, and the color purity can be increased. As a result, display quality can be improved.

<Configuration of electronic equipment>
FIG. 5 is a schematic diagram illustrating a smartphone as an example of an electronic apparatus including the organic EL device described above. Hereinafter, the structure of the smart phone provided with the organic EL device will be described with reference to FIG.

  As shown in FIG. 5, the smartphone 71 has a display unit 72 and an icon 73. The display unit 72 can perform high-quality display using the organic EL device 11 incorporated therein. The above-described organic EL device 11 includes, in addition to the smartphone 71, a mobile phone, a head mounted display, an EVF (Electrical View Finder), a small projector, a mobile computer, a digital camera, a digital video camera, a display, an in-vehicle device, and an audio device. It can be used for various electronic devices such as an exposure apparatus and a lighting device.

  As described above in detail, according to the organic EL device 11 and the electronic apparatus of the present embodiment, the following effects can be obtained.

  (1) According to the organic EL device 11 of the present embodiment, the reflective film 41 (41R, 41G, 41B) is disposed so that the outer periphery of the reflective film 41 (41R, 41G, 41B) is inside from the peripheral edge of the openings 101 to 103 surrounded by the insulating film 56. In other words, the inclined surface of the insulating film 56 and the reflective film 41 are arranged so as not to overlap in plane, so that light deviated from the resonance wavelength generated in the vicinity of the openings 101 to 103 is emitted. Can be reduced. Specifically, the distance between the periphery of the openings 101 to 103 and the counter electrode 25 and the distance between the center of the openings 101 to 103 and the counter electrode 25 can be made the same. Therefore, the optical distances (optical path lengths) of these regions can be made the same, and the colors of the periphery of the openings 101 to 103 and the center of the openings 101 to 103 can be made the same. As a result, it is possible to suppress the mixture of colors in the openings 101 to 103 and the peripheral area thereof, and the color purity can be increased. As a result, display quality can be improved.

  (2) According to the organic EL device 11 of the present embodiment, the low reflection film 55 (55R, 55G, 55B) having lower reflectivity than the reflection film 41 (41R, 41G, 41B) is used as the reflection film 41. By disposing it below, it becomes possible to dispose the low reflection film 55 around the reflection film 41 in a plan view, and prevent reflected light from below the low reflection film 55 from entering the light emitting element 27 side. Can do. Specifically, the low reflection film 55 is disposed so as to overlap the insulating film 56 (the inclined surface of the insulating film 56) in a planar manner. Therefore, display quality can be improved.

  (3) According to this embodiment, it is possible to emit light from within the openings 101 to 103 (light emitting region), and it is possible to provide an electronic device that can improve display quality.

  The aspect of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit or idea of the invention that can be read from the claims and the entire specification. It is included in the range. Moreover, it can also implement with the following forms.

(Modification 1)
As described above, the outer periphery of the reflective film 41 (41R, 41G, 41B) is not limited to being arranged so as to be inward of the entire periphery of the openings 101 to 103 in a plan view. For example, FIG. An arrangement relationship as shown may be used. FIG. 6 is a schematic plan view showing a configuration of a modified example of the organic EL device.

  The organic EL device 111 shown in FIG. 6 is arranged so that the sides of the reflective films 141R, 141G, and 141B along the long sides of the openings 101 to 103 are located inside the openings 101 to 103. Further, the sides of the reflective films 141R, 141G, and 141B along the short sides of the openings 101 to 103 are disposed outside the openings 101 to 103. According to this, since the side of the reflective film 141 along the long side of the light emitting region (opening portions 101 to 103) whose color is easily noticeable as the emission color is arranged inside the opening portions 101 to 103, The color of the central portion and the periphery can be made the same, and the color can be made conspicuous as the emission color, and the display quality can be improved.

(Modification 2)
As described above, the planar gap between the outer periphery of the reflective film 41 and the openings 101 to 103 of the insulating film 56 is not limited to being equal in each of the light emitting elements 27R, 27G, and 27B. The planar gap between the opening 103 and the reflective film 41B in the light emitting element 27B may be set to be wider than the light emitting elements 27R and 27G of other colors. In other words, it is possible to clearly display hard-to-see blue light, and display quality can be improved.

(Modification 3)
As described above, the present invention is not limited to the low reflection film 55 disposed below the reflection film 41, and the low reflection film 55 may not be disposed. According to this, it is preferable to apply when the influence of the reflected light from the metal film below the reflective film 41 is small, and the display quality can be improved from the conventional configuration.

(Modification 4)
As described above, the upper surface of the insulating layer 42 is not limited to being flattened. For example, if the reflective film 41 or the like does not affect display quality, the upper surface of the insulating layer 42 is flattened. You may make it form, without forming.

(Modification 5)
As described above, the insulating layer is not limited to be disposed between the reflective film 41 and the low reflective film 55. For example, a dielectric layer may be disposed. According to this, an electric capacity (first electric capacity) is formed by the reflective film 41 (first reflective film, second reflective film), the dielectric layer, and the low reflective film 55 (first low reflective film, second low reflective film). , Second electric capacity). In the case where the electric capacity is not configured, the reflective film 41 and the low reflective film 55 may be laminated. Further, this laminated film may be used as one electrode of electric capacity.

(Modification 6)
As described above, the color filter 62 is included in the organic EL device 11. However, the color filter 62 may be applied to the organic EL device excluding the color filter 62.

(Modification 7)
As described above, it is not limited to adjusting the optical path length by changing the arrangement position of the reflective film 41. For example, the optical path length may be adjusted by the thickness of the pixel electrode 24, or the light emitting layer or the hole injection layer. The optical path length may be adjusted by a thickness such as

  DESCRIPTION OF SYMBOLS 11,111 ... Organic EL device, 12 ... Scan line, 13 ... Data line, 14 ... Power supply line, 15 ... Data line drive circuit, 16 ... Scan line drive circuit, 21 ... Switching TFT, 22 ... Retention capacity, 23 ... TFT element 24... Pixel electrode 25. Counter electrode 26. Light emitting functional layer 27 27 B 27 G 27 R Light emitting element 31 First substrate 32 Display area 32 a Actual display area 32 b Dummy area 33 ... non-display area 34 ... sub-pixel 35 ... inspection circuit 36 ... flexible substrate 37 ... driving IC 41, 41R, 41G, 41B, 141, 141R, 141G, 141B ... reflective film 42 Insulating layer, 51 ... Element substrate, 52 ... Array substrate, 55 ... Low reflection film, 56 ... Bank as insulating film, 61 ... Color filter substrate, 62 ... Color filter, 62B ... Blue Color filter, 62G ... Green color filter, 62R ... Red color filter, 63 ... Light shielding film, 64 ... Opening, 65 ... Sealing layer, 71 ... Smartphone, 72 ... Display unit, 73 ... Icon, 101, 102, 103 ... opening (light emitting area).

Claims (7)

A first pixel having a first reflective film, a first pixel electrode, a first light emitting layer, and a counter electrode, and resonating light of a first color between the first reflective film and the counter electrode;
An insulating film having a first opening defining a light emitting region on the first pixel electrode;
With
At least a part of the periphery of the first reflective film is disposed on the inner side of the first opening in a plan view. The organic EL device according to claim 1,
The organic EL device according to claim 1, wherein a portion of the first reflective film along the long side of the first opening is disposed inside the first opening in plan view. The organic EL device according to claim 1,
At least a part of the first reflective film does not overlap with the inclined surface of the insulating film in a planar manner. An organic EL device according to any one of claims 1 to 3,
A second reflective film, a second pixel electrode, a second light emitting layer, and the counter electrode, and a second color that is longer in wavelength than the first color between the second reflective film and the counter electrode. A second pixel that resonates the color light;
The insulating film having a second opening defining a light emitting region on the second pixel electrode;
With
The gap between the peripheral edge of the first reflective film and the first opening is formed to be wider than the gap between the peripheral edge of the second reflective film and the second opening. Organic EL device. The organic EL device according to claim 4,
On the opposite side of the first reflective film from the first light emitting layer, a first low reflective film having a planarity larger than the shape of the first reflective film and lower than the first reflective film is provided.
A second low reflection film having a reflectivity that is larger than the shape of the second reflection film and lower than the second reflection film in a plane is provided on the opposite side of the second reflection film from the second light emitting layer. Organic EL device. The organic EL device according to claim 5,
The first reflective film and the first low reflective film constitute a part of the first capacitance circuit,
The organic EL device, wherein the second reflective film and the second low reflective film constitute a part of a second capacitance circuit.   An electronic apparatus comprising the organic EL device according to any one of claims 1 to 6.

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