Display device and electronic equipment

Abstract

A display device according to the present invention comprises a metal layer provided to the outside of an effective display region, and a filter laminate provided so as to face the metal layer. The filter laminate comprises a first color filter and a second color filter having a hole.

Description

Technical Field

[0001] The present disclosure relates to a display device and an electronic apparatus including the same.

Background Art

[0002] In recent years, organic EL display devices including a plurality of organic EL elements using electroluminescence (hereinafter referred to as "EL") of organic materials have been used in various electronic apparatuses. In an organic EL display device, gradations of colors are obtained by controlling the current value flowing through the organic EL element. Further, among organic EL display devices, in an active matrix type display device, a pixel circuit including a transistor and a capacitor element is provided for each pixel, and the organic EL element is driven by this pixel circuit. For this reason, for example, various pixel circuits have been proposed as pixel circuits for organic EL elements that correct variations in driving transistors (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In an organic EL display device, in a region around the effective display region (hereinafter referred to as the "peripheral region"), a metal layer used for wiring and a metal layer (cathode contact portion) for making contact with the cathode electrode are arranged. Therefore, there is a problem that external light is reflected by the metal layer and the visibility deteriorates. In order to suppress such deterioration of visibility, it is conceivable to suppress external light reflection by providing a light-shielding material in the peripheral region. However, when a light-shielding material is provided in the peripheral region, ultraviolet rays are shielded by the light-shielding material, so it becomes difficult to allow a sufficient amount of ultraviolet rays to reach the filler in the peripheral region in the manufacturing process of the display device. For this reason, there is a problem that the filler cannot be sufficiently cured and display defects occur, resulting in a decrease in reliability.

[0005] An object of the present disclosure is to provide a display device capable of suppressing external light reflection outside the effective display region and suppressing a decrease in reliability, and an electronic device including the same.

Means for Solving the Problems

[0006] In order to solve the above problems, a first disclosure is a metal layer provided outside the effective display region, a filter laminate provided opposite to the metal layer, and 、 an electrode extending beyond the effective display area and comprising The filter laminate includes a first color filter and a second color filter having holes. see that a resonator structure is formed by the electrode and the metal layer a display device.

[0007] A second disclosure is an electronic device including the display device of the first disclosure.

Brief Description of the Drawings

[0008]

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[0009] Embodiments of the present disclosure will be described in the following order. 1 Configuration of the display device 2 Manufacturing method of the display device 3 Operation and effect 4 Modification example 5 Application example

[0010] [1 Configuration of the display device] FIG. 1A is a plan view showing an example of the configuration of a display device 10 according to an embodiment of the present disclosure. FIG. 1B is a cross-sectional view taken along line IB-IB of FIG. 1A. The display device 10 has an effective display area R1 and a peripheral area R2.

[0011] The display device 10 is a top emission type display device. The display device 10 includes a substrate 11A and a counter substrate 11B facing the substrate 11A. The counter substrate 11B side is the top side, and the substrate 11A side is the bottom side. The display device 10 includes a plurality of light emitting elements 12, an insulating layer (first insulating layer) 13, a protective layer 14, and a color filter 15 between the substrate 11A and the counter substrate 11B in the effective display area R1.

[0012] The display device 10 includes a contact portion (metal layer) 16, an optical adjustment layer (second insulating layer) 17, a second electrode 12C, a filler 14A, a sealant 18, and a filter laminate 19 between the substrate 11A and the counter substrate 11B in the peripheral region R2. A resonator structure 16A is formed by the second electrode 12C and the contact portion 16. The display device 10 may include a pad portion 11C in the peripheral region R2.

[0013] The display device 10 is, for example, a microdisplay in which self-emitting elements such as OLEDs, Micro-OLEDs, or Micro-LEDs are formed in an array. The display device 10 is suitable for use in various electronic devices. The display device 10 is suitable for use in a display device for VR (Virtual Reality), MR (Mixed Reality), or AR (Augmented Reality), an electronic viewfinder (Electronic View Finder: EVF), or a small projector.

[0014] (Substrate 11) The substrate 11 is a support that supports a plurality of light-emitting elements 12 arranged on one main surface. Although not shown, the substrate 11 may be provided with a driving circuit including a sampling transistor and a driving transistor for controlling the driving of the plurality of light-emitting elements 12, and a power supply circuit for supplying power to the plurality of light-emitting elements 12.

[0015] The substrate 11 may be composed of, for example, glass or resin with low permeability to moisture and oxygen, or may be composed of a semiconductor that is easy to form transistors and the like. Specifically, the substrate 11 may be a glass substrate such as high-strain-point glass, soda glass, borosilicate glass, forsterite, lead glass, or quartz glass, a semiconductor substrate such as amorphous silicon or polycrystalline silicon, or a resin substrate such as polymethyl methacrylate, polyvinyl alcohol, polyvinyl phenol, polyethersulfone, polyimide, polycarbonate, polyethylene terephthalate, or polyethylene naphthalate.

[0016] (Light-emitting element 12) The plurality of light-emitting elements 12 are provided on one main surface of the substrate 11 in the effective display area R1. The plurality of light-emitting elements 12 are arranged in a matrix on one main surface of the substrate 11. The light-emitting element 12 is a white OLED. As a colorization method in the display device 10, a method using a white OLED and a color filter 15 is used. Note that the colorization method is not limited to this, and an RGB painting method or the like may be used. Also, a single-color filter may be used. Further, the light-emitting element 12 may be a Micro-OLED (MOLED) or a Micro-LED.

[0017] The light-emitting element 12 is, from the substrate 11 side, for example, a first electrode 12A as an anode, an organic layer 12B, and a second electrode 12C as an cathode, for example, stacked in this order.

[0018] (The first electrode 12A) The first electrode 12A is provided on one main surface of the substrate 11 in the effective display area R1. The first electrode 12A is electrically separated for each pixel. The first electrode 12A also serves as a reflective layer, and it is preferable for enhancing the light emission efficiency that it is composed of a metal layer having as high a reflectance as possible and a large work function. Examples of the constituent material of the metal layer include at least one of simple substances and alloys of metal elements such as chromium (Cr), gold (Au), platinum (Pt), nickel (Ni), copper (Cu), molybdenum (Mo), titanium (Ti), tantalum (Ta), aluminum (Al), magnesium (Mg), iron (Fe), tungsten (W), silver (Ag), etc. Specific examples of the alloy include an AlNi alloy or an AlCu alloy. The first electrode 12A may be composed of a laminated film of a plurality of metal layers including at least one of the above simple substances and alloys of metal elements.

[0019] (The second electrode 12C) The second electrode 12C is provided to face the first electrode 12A with the organic layer 12B interposed therebetween. The second electrode 12C is provided as an electrode common to all pixels within the effective display area R1, and its peripheral portion extends to the outside of the effective display area R1 (i.e., the peripheral area R2). The second electrode 12C is a transparent electrode having permeability to the light generated in the organic layer 12B. Here, the transparent electrode shall include a semi-transmissive reflective layer. The second electrode 12C is composed of, for example, a metal or a metal oxide. Examples of the metal include at least one of simple substances and alloys of metal elements such as aluminum (Al), magnesium (Mg), calcium (Ca), sodium (Na), etc. Examples of the alloy include, for example, an alloy of magnesium (Mg) and silver (Ag) (MgAg alloy), or an alloy of aluminum (Al) and lithium (Li) (AlLi alloy). Examples of the metal oxide include, for example, a mixture of indium oxide and tin oxide (ITO), a mixture of indium oxide and zinc oxide (IZO), or zinc oxide (ZnO), etc.

[0020] (organic layer 12B) The organic layer 12B is provided between the first electrode 12A and the second electrode 12C. The organic layer 12B is provided as an organic layer common to all pixels within the effective display area R1. FIG. 3 shows an enlarged view of the organic layer 12B shown in FIG. 2. The organic layer 12B has a structure in which a hole injection layer 12B 1 , a hole transport layer 12B 2 , a light-emitting layer 12B 3 , and an electron transport layer 12B 4 are laminated in this order. Note that the structure of the organic layer 12B is not limited to this, and layers other than the light-emitting layer 12B 3 are provided as necessary.

[0021] The hole injection layer 12B 1 is for enhancing the hole injection efficiency into the light-emitting layer 12B 3 and is also a buffer layer for suppressing leakage. The hole transport layer 12B 2 is for the light-emitting layer 12B 3It is for enhancing the hole transport efficiency to the [layer name]. The light-emitting layer 12B 3 generates light by causing recombination of electrons and holes when an electric field is applied. The electron transport layer 12B 4 is for enhancing the electron transport efficiency to the light-emitting layer 12B 3 An electron injection layer (not shown) may be provided between the electron transport layer 12B 4 and the second electrode 12C. This electron injection layer is for enhancing the electron injection efficiency.

[0022] (Insulating layer 13) The insulating layer 13 is provided on one main surface of the substrate 11 in the effective display area R1. The insulating layer 13 is provided between the light-emitting elements 12 and electrically separates the first electrode 12A for each pixel. The insulating layer 13 has openings in portions corresponding to each first electrode 12A. Specifically, the insulating layer 13 is provided between the first electrodes 12A and covers the peripheral portions of the first electrodes 12A.

[0023] The insulating layer 13 is composed of, for example, an organic material or an inorganic material. Examples of the organic material include polyimide or acrylic resin. Examples of the inorganic material include silicon oxide, silicon nitride, silicon oxynitride, or aluminum oxide.

[0024] (Protective layer 14) The protective layer 14 is provided on the plurality of light-emitting elements 12. The protective layer 14 is for protecting the light-emitting elements 12. For example, it is for blocking the light-emitting elements 12 from the outside air and suppressing the intrusion of moisture from the external environment into the light-emitting elements 12.

[0025] The protective layer 14 is composed of, for example, a filler. The filler contains, for example, an ultraviolet curable resin.

[0026] (Color filter 15) The color filter 15 is provided on the protective layer 14. As the color filter 15, for example, color filters of each color such as a red filter, a green filter, and a blue filter are used. The red filter, the green filter, and the blue filter are arranged in a specified pattern in the in-plane direction of the display device 10. The color filter 15 is provided facing the light-emitting element 12. Thereby, the white light emitted from each light-emitting element 12 passes through the color filter 15, and for example, red light, green light, and blue light are emitted from the display surface, respectively. Also, a light-shielding layer (not shown) may be provided in the region between the color filters of each color, that is, between the pixels.

[0027] (Contact portion 16) The contact portion 16 is provided on one main surface of the substrate 11 in the peripheral region R2. The contact portion 16 is connected to the peripheral edge of the second electrode 12C. The contact portion 16 is an example of a metal layer provided outside the effective display region R1 (that is, in the peripheral region R2). As the material of the contact portion 16, for example, the same material as that of the first electrode 12A can be mentioned. From the viewpoint of reducing the contact resistance between the peripheral edge of the second electrode 12C and the contact portion 16, the contact portion 16 preferably has a plate shape. Specifically, the contact portion 16 is preferably a solid electrode.

[0028] (Sealant 18) The sealant 18 bonds the peripheral edges of the opposing surfaces of the substrate 11A and the opposing substrate 11B. The sealant 18 is provided between the filter laminate 19 and the contact portion 16, more specifically, between the filter laminate 19 and the peripheral edge of the second electrode 12C. As the material of the sealant 18, for example, a thermosetting resin can be used.

[0029] (Filler 14A) The filler 14A is provided between the contact portion 16 and the sealant 18, more specifically, between the second electrode 12C and the sealant 18. The filler 14A enters unintentionally between the second electrode 12C and the sealant 18 in the peripheral region R2 when a filler for forming a protective layer is applied to the effective display region R1 on the substrate 11 during the manufacturing process of the display device 10. Therefore, the filler 14A contains the same material as the protective layer 14.

[0030] (Filter laminate 19) The filter laminate 19 is provided to face the contact portion 16. The filter laminate 19 is provided on the sealant 18. The filter laminate 19 has a function as a light-shielding layer that shields external light (visible light). By providing the filter laminate 19 in the peripheral region R2, it is possible to suppress the entry of external light into the display device 10 in the peripheral region R2. Therefore, it is possible to suppress the reflection of external light by the metal layer such as the contact portion 16.

[0031] The filter laminate 19 includes a first color filter 19A and a second color filter 19B. The colors of the first color filter 19A and the second color filter 19B may be different or the same. In FIG. 1B, an example is shown in which the first color filter 19A is provided on the counter substrate 11B side and the second color filter 19B is provided on the substrate 11A side, but the arrangement of the first color filter 19A and the second color filter 19B may be opposite to the above arrangement.

[0032] The first color filter 19A is configured to be able to transmit ultraviolet rays and to be able to shield light of a specific wavelength enhanced by the resonator structure 16A. The first color filter 19A is, for example, a red filter, a blue filter, or a green filter, and among these filters, a red filter is particularly preferable. Since the red filter has a high transmittance of ultraviolet rays, the uncuring of the filler 14A can be particularly suppressed.

[0033] The second color filter 19B has one or more hole portions 19C. The hole portions 19C are for transmitting ultraviolet rays and irradiating the filler 14A. Since the second color filter 19B has one or more hole portions 19C, the transmittance of ultraviolet rays in the filter laminate 19 can be improved, so that uncuring of the filler 14A can be suppressed.

[0034] Examples of the shape of the hole portion 19C include a slit shape, a circular shape, an elliptical shape, or a polygonal shape. Here, the "shape of the hole portion 19C" means the shape when the hole portion 19C is viewed from a direction perpendicular to the display surface of the display device 10. The plurality of hole portions 19C may be provided in a regular pattern or may be provided randomly. The second color filter 19B is, for example, a red filter, a blue filter, or a green filter.

[0035] (Resonator structure 16A) The resonator structure 16A resonates the light reflected by the contact portion 16 and extracts light in a specific wavelength range. The resonator structure 16A is provided facing the hole portion 19C of the second color filter 19B. Thereby, the light in the specific wavelength range extracted by the resonator structure 16A can be made to enter the first color filter 19A through the hole portion 19C. When the second color filter 19B has two or more hole portions 19C, resonator structures 16A may be provided corresponding to each of the two or more hole portions 19C, or one resonator structure 16A may be provided in common for the two or more hole portions 19C.

[0036] (Optical adjustment layer 17) The optical adjustment layer 17 is provided between the contact portion 16 and the second electrode 12C and adjusts the distance between the contact portion 16 and the second electrode 12C. The distance between the contact portion 16 and the second electrode 12C is adjusted to a specified distance by the thickness of the optical adjustment layer 17. By thus adjusting the distance between the contact portion 16 and the second electrode 12C to the specified distance, light in a specific wavelength range can be extracted by the resonator structure 16A.

[0037] The optical adjustment layer 17 is, for example, an insulating layer. Hereinafter, in order to distinguish the insulating layer as the optical adjustment layer 17 from the insulating layer 13, the insulating layer as the optical adjustment layer 17 is referred to as an optical adjustment insulating layer. The optical adjustment insulating layer may have the same configuration as the insulating layer 13, or may have a configuration different from that of the insulating layer 13. When the optical adjustment insulating layer has the same configuration as the insulating layer 13, the optical adjustment insulating layer and the insulating layer 13 can be formed simultaneously, so that the manufacturing process can be simplified. When the optical adjustment insulating layer has a configuration different from that of the insulating layer 13, at least one of the thickness of the insulating layer 13 and the optical adjustment insulating layer, the material of the insulating layer 13 and the optical adjustment insulating layer, and the layer configuration of the insulating layer 13 and the optical adjustment insulating layer may be different. In this case, at least one of the thickness, material, and layer configuration of the optical adjustment insulating layer can be set independently of the insulating layer 13 according to the light in a specific wavelength range desired to be extracted by the resonator structure 16A. Examples of the material of the optical adjustment insulating layer include an inorganic insulating material or an organic resin material. Examples of the inorganic insulating material can be the same as those of the insulating layer 13. Examples of the organic resin material include an acrylic resin or a polyimide resin.

[0038] (Counter substrate 11B) The counter substrate 11B is provided on the color filter 15. The counter substrate 11B is provided such that one main surface of the counter substrate 11B faces one main surface of the substrate 11 on which the plurality of light-emitting elements 12 are provided. The counter substrate 11B is for sealing the light-emitting elements 12, the protective layer 14, the color filter 15, etc. The counter substrate 11B is made of a material such as glass that is transparent to each color light emitted from the color filter 15.

[0039] (Pad portion 11C) The pad portion 11C is a connection portion for connecting to an electronic device or the like. The pad portion 11C is connected to the main substrate of an electronic device or the like via, for example, a flexible printed wiring board.

[0040] [2 Manufacturing method of display device] Hereinafter, a manufacturing method of the display device 10 having the above configuration will be described. First, for example, using thin film formation technology, photolithography technology, and etching technology, a drive circuit or the like is formed on one main surface of the substrate 11 in the effective display area R1. Next, for example, by the sputtering method, after forming a metal layer on the drive circuit or the like, the metal layer is patterned using, for example, photolithography technology and etching technology to form a plurality of first electrodes 12A separated for each light-emitting element 12 (that is, for each pixel).

[0041] Next, for example, by the CVD method, after forming the insulating layer 13, the insulating layer 13 is patterned using photolithography technology and etching technology. Next, for example, by the CVD method, after forming the optical adjustment layer 17, the optical adjustment layer 17 is patterned using photolithography technology and etching technology. Note that the formation methods of the insulating layer 13 and the optical adjustment layer 17 are not limited to this, and for example, the insulating layer 13 and the optical adjustment layer 17 may be formed simultaneously and then patterned simultaneously.

[0042] Next, for example, by a vapor deposition method using a mask, a hole injection layer 12B 1 , a hole transport layer 12B 2 , a light-emitting layer 12B 3 , and an electron transport layer 12B 4 are laminated in this order on the first electrode 12A and on the insulating layer 13 to form an organic layer 12B. Next, for example, by the sputtering method, a second electrode 12C is formed on the organic layer 12B. Thereby, a plurality of light-emitting elements 12 are formed on one main surface of the substrate 11.

[0043] Next, for example, by the ODF (One Drop Fill) method, a filler is applied. That is, after applying a sealant 18 in a closed loop shape so as to surround the effective display area R1 on the substrate 11 in the peripheral area R2 to form a frame, the filler is applied inside this frame. At this time, there is a risk that the filler may enter between the second electrode 12C and the sealant 18. Next, a counter substrate 11B on which a color filter 15 and a filter laminate 19 are pre-formed in the effective display area R1 and the peripheral area R2 respectively is prepared, and this counter substrate 11B is placed on the filler. Next, after curing the sealant 18 by heat treatment, the filler is cured by irradiating ultraviolet light L on the effective display area R1 and the peripheral area R2 of the counter substrate 11B. Thereby, the substrate 11A and the counter substrate 11B are bonded together. Further, when the filler is cured, a protective layer 14 is formed on the plurality of light-emitting elements 12. As described above, the display device 10 shown in FIGS. 1A and 1B is obtained.

[0044] [3 Effects] As described above, in the display device 10 according to one embodiment, a contact portion 16 is provided in the peripheral area R2 outside the effective display area R1, and a filter laminate 19 is provided facing this contact portion 16. Thereby, external light incident on the peripheral area R2 of the display surface can be blocked. Therefore, reflection of external light by the contact portion 16 can be suppressed.

[0045] In the display device 10 according to one embodiment, the filter laminate 19 includes a first color filter 19A and a second color filter 19B having one or more hole portions 19C. Thereby, in the manufacturing process of the display device 10, a sufficient amount of ultraviolet light can reach the filler 14A through the hole portions 19C of the second color filter 19B. Therefore, even in the configuration where the filter laminate 19 is provided in the peripheral area R2, it is possible to suppress the filler 14A from being in an uncured state. Thus, even in the configuration where the filter laminate 19 is provided in the peripheral area R2, a decrease in reliability can be suppressed.

[0046] In the display device 10 according to an embodiment, a resonator structure 16A is formed by the second electrode 12C and the contact portion 16. This resonator structure 16A resonates the light reflected by the contact portion 16 and extracts light in a specific wavelength range. Then, the first color filter 19A blocks the light in the specific wavelength range extracted by the resonator structure 16A. When one or more hole portions 19C are provided in the second color filter 19B, the light-shielding property of the filter laminate 19 may decrease, but such a decrease in the light-shielding property can be compensated for by the resonator structure 16A.

[0047] FIG. 3 is a cross-sectional view showing the configuration of the display device 20 of the reference example. In the display device 20, the filter laminate 21 includes a first color filter 21A and a second color filter 21B, and neither of them has a hole portion. For this reason, it becomes difficult for a sufficient amount of ultraviolet light L to reach the filling agent 14A that has entered the peripheral region R2. Therefore, the filling agent 14A remains in an uncured state and the reliability decreases.

[0048] [4 Modification Examples] (Modification Example 1) In the above-described embodiment, the case where the display device 10 has the resonator structure 16A in the peripheral region R2 has been described, but the display device 10 may not have the resonator structure 16A in the peripheral region R2. In this case, the display device 10 may not include the optical adjustment layer 17 in the peripheral region R2.

[0049] (Modification Example 2) In the above-described embodiment, an example in which the metal layer provided outside the effective display area R1 (that is, the peripheral region R2) is the contact portion (for example, the cathode contact portion) 16 has been described, but the metal layer is not limited to this. For example, the metal layer may be a wiring or the like provided outside the effective display area R1. In this case, a resonator structure may be formed by the second electrode 12C and the metal layer such as wiring.

[0050] (Modification Example 3) In the above-described embodiment, an example in which the filter laminate 19 includes two color filters, i.e., the first color filter 19A and the second color filter 19B, has been described. However, the filter laminate 19 may include three or more color filters. In this case, at least one of the three or more color filters is a filter having no hole portion for transmitting ultraviolet rays.

[0051] [5 Application Example] (Electronic Device) The display device 10 according to any one of the above-described embodiment and its modification may be provided in various electronic devices. In particular, it is preferably provided in those that require high resolution, such as an electronic viewfinder of a video camera or a single-lens reflex camera, or a head-mounted display, and are used by being enlarged near the eyes.

[0052] (Specific Example 1) Figs. 4A and 4B show an example of the appearance of a digital still camera 310. This digital still camera 310 is of an interchangeable-lens single-lens reflex type, and has an interchangeable photographing lens unit (interchangeable lens) 312 at substantially the center of the front of the camera body portion (camera body) 311, and a grip portion 313 for the photographer to hold on the left side of the front.

[0053] A monitor 314 is provided at a position shifted from the center to the left side on the back of the camera body portion 311. An electronic viewfinder (eyepiece window) 315 is provided above the monitor 314. The photographer can view the optical image of the subject guided from the photographing lens unit 312 through the electronic viewfinder 315 and determine the composition. As the electronic viewfinder 315, the display device 10 according to any one of the above-described embodiment or its modification can be used.

[0054] (Specific Example 2) FIG. 5 shows an example of the appearance of the head-mounted display 320. The head-mounted display 320 has, for example, ear-hanging portions 322 for attaching to the user's head on both sides of the spectacle-shaped display portion 321. As the display portion 321, the display device 10 according to any one of the above-described embodiments or a modification thereof can be used.

[0055] (Specific Example 3) FIG. 6 shows an example of the appearance of the television device 330. This television device 330 has, for example, a video display screen portion 331 including a front panel 332 and a filter glass 333, and this video display screen portion 331 is configured by the display device 10 according to any one of the above-described embodiments or a modification thereof.

Example

[0056] Hereinafter, the present disclosure will be specifically described by way of examples, but the present disclosure is not limited to these examples.

[0057] [Example 1] A display device having the configuration shown in FIG. 1B was set as a simulation model. The first color filter and the second color filter were a red color filter having no hole portion and a blue color filter having a hole portion, respectively. The reflectance when external light was incident on the peripheral region of the display surface in this display device was obtained by simulation. The result is shown in FIG. 7.

[0058] [Comparative Example 1] A simulation model similar to that of Example 1 was set except that the filter laminate was omitted. The reflectance when external light was incident on the peripheral region of the display surface in this display device was obtained by simulation. The result is shown in FIG. 7.

[0059] It can be seen from FIG. 7 that In the display device (Comparative Example 1) without using the filter laminate, light in the short wavelength region (about 400 nm to 580 nm) is extracted by the resonator structure, so the reflectance in the short wavelength region is high. On the other hand, in a display device using a filter laminate, light in the short wavelength range (about 400 nm to 580 nm) extracted by the resonator structure is blocked by the second color filter (red color filter), so the reflectance in the short wavelength range is low.

[0060] As described above, the embodiments and modifications of the present disclosure have been specifically described. However, the present disclosure is not limited to the above-described embodiments and modifications, and various modifications based on the technical idea of the present disclosure are possible.

[0061] For example, the configurations, methods, steps, shapes, materials, numerical values, etc. described in the above embodiments and modifications are merely examples, and different configurations, methods, steps, shapes, materials, numerical values, etc. may be used as necessary.

[0062] The configurations, methods, steps, shapes, materials, numerical values, etc. of the above embodiments and modifications can be combined with each other as long as they do not deviate from the gist of the present disclosure.

[0063] The materials exemplified in the above embodiments and modifications can be used alone or in combination of two or more without special notice.

[0064] In addition, the present disclosure can also adopt the following configurations. (1) A metal layer provided outside the effective display area, A filter laminate provided opposite to the metal layer, and The filter laminate includes a first color filter and a second color filter having holes, and a display device. (2) The display device further includes an electrode extending to the outside of the effective display area, and a resonator structure is formed by the electrode and the metal layer. The display device according to (1). (3) The resonator structure resonates the light reflected by the metal layer and extracts light in a specific wavelength range. The first color filter shields the light in the specific wavelength range extracted by the resonator structure. The display device according to (2). (4) The display device according to (2) or (3), further comprising an optical adjustment layer provided between the metal layer and the electrode. (5) The optical adjustment layer is an insulating layer. The display device according to (4). (6) A plurality of light-emitting elements provided in the effective display area, A first insulating layer provided between the light-emitting elements, A second insulating layer provided between the metal layer and the electrode and further comprising, The display device according to (2) or (3), wherein at least one of the thicknesses of the first insulating layer and the second insulating layer, the materials of the first insulating layer and the second insulating layer, and the layer structure of the first insulating layer and the second insulating layer is different. (7) The display device further comprising an electrode extending to the outside of the effective display area, The metal layer is a contact portion connected to the peripheral portion of the electrode. The display device according to (1). (8) The metal layer is a wiring. The display device according to (1). (9) A sealant provided between the filter laminate and the metal layer, A filler provided between the metal layer and the sealant and further comprising, The filler contains an ultraviolet curable resin. The display device according to any one of (1) to (8). (10) The first color filter is configured to be able to transmit ultraviolet rays. The display device according to any one of (1) to (9). (11) The first color filter is a red filter. The display device according to any one of (1) to (10). (12) The metal layer has a plate shape. The display device according to any one of (1) to (11). (13) An electronic device including the display device according to any one of (1) to (12).

Explanation of Signs

[0065] 10 Display device 11A Substrate 11B Counter substrate 11C Pad portion 12 Light-emitting element 12A First electrode 12B Organic layer 12B 1 Hole injection layer 12B 2 Hole transport layer 12B 3 Light-emitting layer 12B 4 Electron transport layer 12C Second electrode 13 Insulating layer 14 Protective layer 14A Filler 15 Color filter 16 Contact portion 17 Optical adjustment layer 18 Sealing agent 19 Filter laminate 19A First color filter 19B Second color filter R1 Effective display area R2 Peripheral area

Claims

1. A metal layer provided outside the effective display area, a filter laminate provided opposite to the metal layer, and an electrode extending to outside the effective display area are provided, the filter laminate includes a first color filter and a second color filter having holes, and a display device in which a resonator structure is formed by the electrode and the metal layer.

2. The resonator structure resonates light reflected by the metal layer and extracts light in a specific wavelength range, and the first color filter blocks the light in the specific wavelength range extracted by the resonator structure. The display device according to claim 1.

3. The display device according to claim 1, further comprising an optical adjustment layer provided between the metal layer and the electrode.

4. The display device according to claim 3, wherein the optical adjustment layer is an insulating layer.

5. a plurality of light-emitting elements provided in the effective display area, a first insulating layer provided between the light-emitting elements, and a second insulating layer provided between the metal layer and the electrode are further provided, and at least one of the thicknesses of the first insulating layer and the second insulating layer, the materials of the first insulating layer and the second insulating layer, and the layer configurations of the first insulating layer and the second insulating layer are different. The display device according to claim 1.

6. The metal layer is a contact portion connected to the peripheral portion of the electrode. The display device according to claim 1.

7. The metal layer is a wiring. The display device according to claim 1.

8. a sealant provided between the filter laminate and the metal layer, and a filler provided between the metal layer and the sealant are further provided, and the filler includes an ultraviolet curable resin. The display device according to claim 1.

9. The first color filter is configured to be transmissive to ultraviolet rays. The display device according to claim 1.

10. The first color filter is a red filter. The display device according to claim 1.

11. The metal layer has a plate shape. The display device according to claim 1.

12. An electronic device including the display device according to any one of claims 1 to 11.

Images