Organic el light-emitting device

Abstract

The present invention provides an organic EL light-emitting device in which a non-light-emitting region is less visible when the organic EL light-emitting device is lit than before.　The organic EL light-emitting device has a first organic EL light-emitting element, a sealing part, and a second organic EL light-emitting element. The first organic EL light-emitting element, the sealing part, and the second organic EL light-emitting element are laminated in this order from a light emission side. The first organic EL light-emitting element has a first light-emitting region and one or a plurality of non-light-emitting regions when viewed in plan view. The second organic EL light-emitting element has a plurality of second light-emitting region in a position overlapping with the non-light-emitting region when viewed in a plan view.

Description

Organic EL light-emitting device

[0001] The present invention relates to an organic EL light-emitting device, and specifically relates to an organic EL light-emitting element utilizing the organic electroluminescence (EL) phenomenon, and a display device and a lighting device provided with the same.

[0002] An organic EL element is a solid-state light-emitting element that converts electrical energy into light energy. Various display devices and lighting devices using the same are mainly characterized by being lightweight and thin, and research and commercialization are progressing in various fields.

[0003] Among these, in particular, lighting devices using organic EL elements, compared with lighting devices using light-emitting diodes (LEDs) that have rapidly spread in recent years (hereinafter also referred to as LED lighting), can irradiate soft diffused light as a surface light source and do not contain a large amount of harmful short-wavelength light. Therefore, they have attracted attention as next-generation lighting sources in a wide range of fields from general residential use to special applications such as inspection light sources.

[0004] Here, organic EL elements for lighting devices are often formed on a glass substrate, and generally emit uniform white light or monochromatic light from a light-emitting surface with a predetermined area such as a square or a rectangle. On the other hand, in LED lighting, LED elements with different emission colors, more specifically, three types of LEDs: red LED, green LED and blue LED, or two types of LEDs: blue LED and orange LED which is a complementary color to blue LED, are combined to adjust the light amount and color tone. So-called dimmable and tonable lighting is already available on the market.

[0005] On the other hand, in lighting devices using organic EL elements, several organic EL lighting devices capable of dimming and toning have been reported, in which two or more types of light-emitting regions with different emission colors are separately arranged in a pixel shape or a stripe shape on the substrate surface, and the driving currents for causing the light-emitting regions of respective colors to emit light are individually adjusted. In addition, a method has also been proposed in which planar organic EL elements with different emission colors are formed into a laminated structure, each is driven separately, and the emission colors of each organic EL element are mixed in-plane to achieve toning.

[0006] Japanese Patent Publication No. 2016-006744, Japanese Patent Publication No. 2017-076467, Japanese Patent No. 5241783, Japanese Patent No. 5857006, Japanese Patent No. 6554291

[0007] Incidentally, when dimming and color tuning are performed by forming light-emitting regions of different colors in a striped pattern on the substrate surface as described above, non-light-emitting regions are generally formed between the light-emitting regions of each color (between the stripes). This is because, when forming each striped light-emitting region on the substrate, patterning of the transparent electrodes (dividing the light-emitting regions for each color) and patterning of the organic material thin film formed on the transparent electrodes by vacuum deposition or the like are performed. This is a major factor in reducing the aperture ratio (the ratio of the area of ​​the actually light-emitting part to the total area of ​​the organic EL element), and the non-light-emitting regions become visible as dark areas within the light-emitting regions. As the area of ​​each color's light-emitting region becomes smaller, the area of ​​these non-light-emitting regions becomes more significant and their impact becomes more pronounced. A decrease in the aperture ratio leads to a decrease in the amount of emitted light, and the visibility of non-light-emitting regions leads to a decrease in design aesthetics, so neither is desirable.

[0008] One possible strategy to minimize the impact of this non-emitting region is to enlarge the emitting region of each color to effectively reduce the contribution of the non-emitting region. However, in that case, the emitting regions of each color would become clearly visible separately. For example, if white were to be represented using blue light emission and its complementary color, orange light emission, the blue and orange emission regions would be visible separately despite the use of white lighting, thus reducing the aesthetic appeal from another perspective. Another possible method is to attach a light-diffusing sheet to the light-emitting side of the organic EL panel (the substrate surface opposite to the substrate surface where the electrodes and thin films of organic material are formed, the surface in contact with the outside) to make the non-emitting region less visible. However, it is difficult to completely eliminate the visibility of this non-emitting region, and there are concerns about increased labor and costs due to the attachment of the light-diffusing sheet.

[0009] In addition to this stripe structure, when planar organic EL elements with different emission colors are stacked and driven separately to mix the emission colors of each organic EL element within the plane for color tuning, light emitted from the organic EL element located further from the light emission side (referred to as the back organic EL element) will pass through the organic EL element closer to the light emission side (referred to as the front organic EL element) and be radiated to the outside. Here, because organic EL elements have light absorption characteristics due to their constituent materials (metal electrodes, organic films, etc.), light emitted from the back organic EL element is partially absorbed as it passes through the front organic EL element, causing a change in color and a decrease in light intensity. As a result, undesirable effects occur, such as a decrease in color reproducibility as a light source and an increase in the driving power of the organic EL panel.

[0010] Therefore, the present invention aims to provide an organic EL light-emitting device in which the non-light-emitting area is less visible when lit compared to conventional devices.

[0011] To solve the aforementioned problems, the inventors have investigated a method for increasing the amount of light emitted by virtually eliminating non-emitting regions and further making non-emitting regions less visible to organic EL elements having light-emitting regions of different colors arranged in a stripe pattern on the substrate surface for the purpose of dimming and color tuning. Specifically, the inventors have developed an organic EL element having multiple light-emitting regions of different colors arranged in a stripe pattern or a similar shape on the substrate surface, with a two-stage element structure having another element structure on the sealing layer of the first-stage element, providing at least one color stripe-shaped light-emitting region in the first stage, and providing a stripe-shaped light-emitting region of the same or a different color as the first stage at the location of the non-emitting region of the first stage within the surface of the second stage. By doing so, the inventors believe that the non-emitting regions when viewed from the front of the organic EL panel will be substantially eliminated, leading to an increase in the amount of light emitted by the organic EL panel and an improvement in design.

[0012] Specifically, when viewing the OLED panel from the light-emitting surface (front), the striped light-emitting regions of the second-row OLED elements located on the back are visible at the intervals between the striped light-emitting regions of the first-row OLED elements, effectively creating a state where there are no non-light-emitting regions. This is expected to improve the aperture ratio and increase the amount of emitted light, while also improving the aesthetic appeal by eliminating the visibility of non-light-emitting regions.

[0013] One aspect of the present invention derived from the above considerations is an organic EL light-emitting device having a first organic EL light-emitting element, a sealing portion, and a second organic EL light-emitting element, wherein the first organic EL light-emitting element, the sealing portion, and the second organic EL light-emitting element are stacked in this order from the light-emitting side, the first organic EL light-emitting element has a first light-emitting region and one or more non-light-emitting regions when viewed from above, and the second organic EL light-emitting element has at least two second light-emitting regions at positions overlapping with the non-light-emitting regions when viewed from above.

[0014] According to this embodiment, the second organic EL light-emitting element has a second light-emitting region that overlaps with the non-light-emitting region of the first organic EL light-emitting element when viewed from above. Therefore, light can be irradiated from the second light-emitting region to the portion corresponding to the non-light-emitting region, making the non-light-emitting region less visible when lit compared to conventional designs.

[0015] A preferred embodiment is that the two second light-emitting regions each emit light in a different color when lit.

[0016] A preferred embodiment is that when at least one of the two second light-emitting regions is lit, the light-emitting color is the same as the light-emitting color when the first light-emitting region is lit.

[0017] In a preferred embodiment, the first organic EL light-emitting element has a plurality of first light-emitting regions, the non-light-emitting regions are located between adjacent first light-emitting regions when viewed from above, and the adjacent first light-emitting regions each have a different light-emitting color when lit.

[0018] A preferred embodiment includes a light-emitting substrate, the light-emitting substrate being provided on the light-emitting side of the first organic EL light-emitting element, and the sealing portion includes a sealing layer that seals the first organic EL light-emitting element together with the light-emitting substrate.

[0019] In a preferred embodiment, the sealing portion has a light-transmitting portion that allows light to pass through, and the light-transmitting portion is arranged to overlap with each second light-emitting region when viewed from above.

[0020] One aspect of the present invention is an organic EL light-emitting device having multiple light-emitting regions of different wavelengths arranged in a stripe-like or similar shape on a substrate surface, having a two-stage element structure separated by the surface of a sealing layer, with the first stage having a light-emitting region of at least one color, and the second stage having multiple light-emitting regions of different colors at the position of the non-light-emitting region of the first stage within its surface.

[0021] One aspect of the present invention is an organic EL light-emitting device having multiple light-emitting regions of different wavelengths arranged in a stripe-like or similar shape on a substrate surface, having a two-stage element structure separated by the surface of a sealing layer, with the first stage having a light-emitting region of at least one color, and the second stage having multiple light-emitting regions containing the same light-emitting color as the light-emitting region of the first stage at the positions of the non-light-emitting regions of the first stage.

[0022] The above-described embodiments can be dependent on each other, refer to some of their components, or substitute for some of their components, as long as they fall within the technical scope of the present invention.

[0023] According to the present invention, when the light is on, the non-emitting area is less visible compared to conventional methods.

[0024] This figure shows an example of the cross-sectional structure of an organic EL panel. This figure shows organic EL elements formed in a stripe pattern on a substrate. This figure shows how light is emitted from the stripe light-emitting regions of the organic EL elements. This is a cross-sectional view showing the positional relationship of the stripe light-emitting regions in each stage of an organic EL panel having a two-stage organic EL element configuration. This is an explanatory diagram of the organic EL panel of Figure 4, where (a) is a cross-sectional perspective view of the main part and (b) is a cross-sectional view of the main part. This figure shows how light is emitted from the stripe light-emitting regions in each stage of an organic EL panel having a two-stage organic EL element configuration.

[0025] Embodiments of the present invention will be described below with reference to the drawings. Please note that, for the sake of ease of understanding, the dimensions (length, width, and thickness) are exaggerated in the drawings, and therefore the ratios of each dimension do not accurately represent the dimensional ratios of the actual element.

[0026] (Embodiment) Figure 1 shows an example of a cross-sectional structure of an organic EL panel according to an embodiment. As shown in Figure 1, the organic EL panel has a pair of lower electrodes 110 and upper electrodes 130, and an organic layer 120 sandwiched between them, formed as a thin film on a single substrate 100 (glass substrate, resin substrate, etc.) by vacuum deposition or printing. Furthermore, as shown in Figure 1, the entire organic EL element (lower electrode 110, organic layer 120, and upper electrode 130) is covered with a sealing layer 140 made of a thin film of inorganic material such as silicon dioxide or silicon nitride to prevent the intrusion of moisture and oxygen from the outside and to prevent mechanical damage. Here, depending on the improvement of the characteristics of the organic EL element and the purpose of use of the organic EL element, the organic layer 120 is often a laminated structure combining multiple organic layers. Regarding the lower electrode 110 and upper electrode 130, depending on whether the light emission surface faces the substrate 100 (bottom emission structure) or the sealing layer 140 (top emission structure), a fully reflective film or semi-transparent film using metal, or a transparent conductive film using metal oxide, are appropriately combined. Furthermore, in some cases, the entire organic EL element 150, to which the sealing layer 140 is laminated, may be further protected by a sealing member made of glass or metal (sealing can, sealing glass, etc.). With regard to the present invention, there are no specific restrictions on these various element structures, and any element structure is included as long as the effects of the invention are achieved. Also, unless otherwise specified, the present invention is described assuming a bottom emission structure in which the synchrotron light generated in the organic layer 120 is emitted from the substrate 100 side to the outside of the organic EL panel. However, any form of light emission direction is also included in the present invention as long as the effects of the invention are achieved.

[0027] In organic EL panels for lighting devices, as shown in the perspective view 200 in Figure 2, organic EL elements 150 are formed in a thin film state across the entire substrate by methods such as vacuum deposition or printing, and the entire surface of the organic EL panel emits light when power is input from an external source. In this case, as mentioned above, the emitted color is often limited to specific colors such as white light or monochromatic light, and it is not possible to have a color adjustment function that allows the user to freely control the emitted color. Therefore, in order to give an organic EL panel a dimming function, organic EL elements with different emitted colors (151 and 152 in this example) are formed in a stripe pattern on the substrate 100, as shown in the perspective view 201 in Figure 2. Then, by driving these separately, the emitted colors of organic EL elements 151 and 152 are mixed as appropriate, and a color adjustment function is realized that allows the user to obtain their preferred emitted color. More specifically, by making organic EL element 151 blue and organic EL element 152 orange, and mixing them as appropriate, various types of white, including blue and orange, can be realized. Although we will not go into detail here, in addition to the method of mixing the two types of emission colors shown, it is also possible to fine-tune the color by using a stripe structure with multiple different emission colors.

[0028] Here, Figure 2 shows a schematic cross-sectional view of a part of the stripe structure of a color-tunable organic EL element shown in the perspective view 201 of Figure 2, as shown by cross-sectional view 160. The organic EL panel has stripes of organic EL elements 151 (lower electrode 111, organic layer 121, and upper electrode 131) with a certain emission color and stripes of organic EL elements 152 (lower electrode 112, organic layer 122, and upper electrode 132) with a different emission color than organic EL elements 151, and the entire panel is covered with a sealing layer 140. At this time, a gap 170 is formed between the stripes of organic EL elements 151 and organic EL elements 152. This is unavoidable when patterning the stripe structure by various methods, and when the color-tunable organic EL element shown in the perspective view 201 of Figure 2 is illuminated, it is visible as a non-emitting region.

[0029] Here, the path of light emitted from the organic layer will be explained in detail using Figure 3. Figure 300 is a schematic cross-sectional view of the color-tunable organic EL element during light emission, as shown in the perspective view of Figure 201. Since a bottom emission structure is used as an example here, the lower electrodes 111 and 112 are transparent electrodes.

[0030] In the organic EL panel shown in the cross-sectional view 300 of Figure 3, the light 310 emitted from the organic EL elements 151 and 152 through the lower electrodes 111 and 112 and the substrate 100 is visible as a striped light-emitting region when viewed from the front (light-emitting side) of the organic EL panel, as shown in the light-emitting region 320 in the front view 301 of Figure 3. At this time, as mentioned above, the areas where the striped light-emitting region is not formed are recognized as non-light-emitting regions 170, as shown in 330 in the front view 301 of Figure 3.

[0031] This invention involves arranging an organic EL element in a two-stage configuration and offsetting the stripe-shaped light-emitting regions of the organic EL elements in each stage within the plane, thereby preventing the non-light-emitting regions within the light-emitting surface from being visible.

[0032] Figure 4 is a schematic cross-sectional view of a case where a second-stage organic EL element 153 is formed on a sealing layer 140 that seals the first-stage organic EL elements 151 and 152 formed on a light-emitting substrate 100 (glass substrate). As shown in Figure 4, the second-stage organic EL element 153 consists of a lower electrode 113, an organic layer 123, and an upper electrode 133, just like the first-stage organic EL elements 151 and 152, and has a striped light-emitting region, and is entirely covered by the sealing layer 141. Here, the color of the light emitted from the striped light-emitting region of the second-stage organic EL element 153 may be the same as or different from the color of the light emitted from the striped light-emitting region of the first-stage organic EL elements 151 and 152. Furthermore, both the first-stage organic EL elements 151 and 152 and the second-stage organic EL element 153 may have multiple striped light-emitting regions that emit light of different colors, and there are no particular restrictions on the width or shape of the stripes.

[0033] The organic EL panel shown in Figure 4 will be described in detail below with reference to Figure 5. As shown in Figure 5, the organic EL panel 400 has first organic EL elements 151 and 152 stacked on a light-emitting substrate 100, and a first encapsulation layer 140 is further stacked on top of that. The organic EL panel 400 also has second organic EL elements 153 (153a to 153c) stacked on top of the first encapsulation layer 140, and a second encapsulation layer 141 is further stacked on top of that. In the organic EL panel 400, the first organic EL elements 151 and 152 are encapsulated by the light-emitting substrate 100 and the first encapsulation layer 140, and the second organic EL element 153 is encapsulated by the first encapsulation layer 140 and the second encapsulation layer 141.

[0034] The organic EL panel 400 has first organic EL elements 151 and 152 arranged with a gap in the width direction (the direction in which the first organic EL elements 151 and 152 are arranged side by side), and non-emitting regions 170 (170a to 170c) that do not emit light when lit are formed between adjacent first organic EL elements 151 and 152.

[0035] In the organic EL panel 400, when the light-emitting substrate 100 is viewed from above, each second organic EL element 153a to 153c is positioned so as not to overlap with each first organic EL element 151, 152, but so as to overlap with the non-emitting regions 170a to 170c.

[0036] The light-emitting substrate 100 is a substrate that can transmit light in the thickness direction, and as shown in Figure 5(b), light-emitting regions 402 to 404 are formed on the light-emitting side. The first light-emitting regions 402 and 403 are regions that overlap with the first light-emitting regions 405 and 406 of the first organic EL elements 151 and 152 when viewed from above. The second light-emitting region 404 is a region that overlaps with the second light-emitting regions 407a to 407c of the second organic EL element 153 when viewed from above. The first light-emitting regions 402 and 403 are arranged alternately with the second light-emitting region 404 in the width direction.

[0037] The first sealing layer 140 is an insulating sealing layer having sealing and insulating properties. The first sealing layer 140 is transparent and has a light-transmitting portion that can transmit light emitted from the second light-emitting region 407 of the second organic EL element 153. In the organic EL panel 400 of Figure 5, the entire layer is a light-transmitting portion. Alternatively, the first sealing layer 140 may have a light-transmitting portion only in the portion that overlaps with the second light-emitting region 407. The first sealing layer 140 is provided across the first organic EL elements 151 and 152, filling the gap between the first organic EL elements 151 and 152. Furthermore, the back side of the first encapsulation layer 140 (the side opposite to the light-emitting substrate 100) is located on the back side (the side opposite to the light-emitting substrate 100) of the upper electrodes 131 and 132 of the first organic EL elements 151 and 152, and the first encapsulation layer 140 is interposed between the first organic EL elements 151 and 152 and the second organic EL element 153.

[0038] The second sealing layer 141 is an insulating sealing layer having sealing and insulating properties, and covers the back side (the side opposite to the light-emitting substrate 100) across each second organic EL element 153.

[0039] The luminescence color of the first light-emitting region 405 of the first organic EL element 151 and the luminescence color of the first light-emitting region 406 of the first organic EL element 152 may be the same or different. The luminescence colors of each of the second light-emitting regions 407a to 407c of the second organic EL element 153 may all be the same or partially different. Among the luminescence colors of the second light-emitting regions 407a to 407c of the second organic EL element 153, there may be some that are the same color as the luminescence color of the light-emitting region 405 (406) of the first organic EL element 151 (152).

[0040] Here, an important point in the present invention is that the striped light-emitting region of the second-stage organic EL element 153 is formed in the non-light-emitting region 170 between the first-stage organic EL elements 151 and 152. Figure 6 schematically shows a cross-section of the light-emitting state of the organic EL panel. Light 340 emitted from the striped light-emitting regions of the first-stage organic EL elements 151 and 152 and light 350 emitted from the striped light-emitting region of the second-stage organic EL element 153 are emitted through the substrate 100. Here, the light 350 is emitted to the outside through the non-emitting region 170 between the first-stage organic EL elements 151 and 152. Therefore, when viewed from the front of the organic EL panel (front view shown as 501 in Figure 6), the light-emitting regions 360, 360 of the first-stage organic EL elements 151 and 152 and the light-emitting region 370 of the second-stage organic EL element 153 appear to be seamlessly aligned, making it appear as if the entire organic EL panel is emitting light. This increases the light output of the organic EL panel and improves the design by reducing the visibility of the non-emitting region 170.

[0041] Although this invention does not describe the details of the driving method, by separately driving the first-stage organic EL elements 151 and 152 and the second-stage organic EL element 153 from an external source, it becomes possible to increase or decrease the light output of the entire organic EL panel, or to adjust the color to any desired shade.

[0042] The organic EL light-emitting device (organic EL panel 400) according to an embodiment of the present invention has first organic EL elements 151, 152 (first organic EL light-emitting elements), a sealing portion, and second organic EL elements 153a to 153c (second organic EL light-emitting elements), and the first organic EL elements 151, 152, the sealing portion, and the second organic EL element 153 are stacked in this order from the light-emitting side, and when viewed from above, the first organic EL elements 151, 152 have first light-emitting regions 405, 406 and one or more non-light-emitting regions 170, and when viewed from above, the second organic EL elements 153a to 153c have a plurality of second light-emitting regions 407a to 407c at positions overlapping with the non-light-emitting regions 170.

[0043] According to this configuration, since the plurality of second light-emitting regions 407a to 407c are provided at positions overlapping the non-light-emitting region 170, the non-light-emitting region 170 is less likely to be visually recognized during lighting, and the overall brightness can be improved.

[0044] In the organic EL light-emitting device of the above-described embodiment, the plurality of second light-emitting regions 407a to 407c may include two or more types of second light-emitting regions 407 having different emission colors during lighting.

[0045] In the organic EL light-emitting device of the above-described embodiment, the plurality of second light-emitting regions 407a to 407c may include a second light-emitting region 407 whose emission color during lighting is the same as the emission color of the first light-emitting regions 405 and 406.

[0046] In the organic EL light-emitting device of the above-described embodiment, the first organic EL elements 151 and 152 have a plurality of first light-emitting regions 405 and 406, the non-light-emitting region 170 is provided between adjacent first light-emitting regions 405 and 406 when viewed in a plan view, and the adjacent first light-emitting regions 405 and 406 may have different emission colors during lighting, respectively.

[0047] In the organic EL light-emitting device of the above-described embodiment, the organic EL light-emitting device includes a light exit substrate 100 (light exit base material), the light exit substrate 100 is provided on the light exit side of the first organic EL elements 151 and 152, and the sealing portion may include a first sealing layer 140 (sealing layer) that seals the first organic EL elements 151 and 152 together with the light exit substrate 100.

[0048] In the organic EL light-emitting device of the above-described embodiment, the sealing portion includes a light-transmittable first sealing layer 140 (light-transmitting portion), and the first sealing layer 140 may be disposed so as to overlap with each of the second light-emitting regions 407a to 407c when viewed in a plan view.

[0049] In the above-described embodiment, a two-step laminated structure of the first organic EL elements 151, 152 and the second organic EL element 153 is adopted, but the present invention is not limited thereto. A laminated structure of three or more steps formed by a plurality of organic EL elements is also possible.

[0050] 100: Substrate 110: Lower electrode 111: Lower electrode of color 1 112: Lower electrode of color 2 113: Lower electrode of the second stage organic EL element 120: Organic layer 121: Organic layer of color 1 122: Organic layer of color 2 123: Organic layer of the second stage organic EL element 130: Upper electrode 131: Upper electrode of color 1 132: Upper electrode of color 2 133: Upper electrode of the second stage organic EL element 140: Encapsulation layer 141: Encapsulation layer of the second stage organic EL element 150: Organic EL element 151: Light-emitting region (stripe) of color 1 (first organic EL element) 152: Light-emitting region (stripe) of color 2 (first organic EL element) 153: Light-emitting region (stripe) of the second stage organic EL element (second organic EL element) 160: Stripe pair of color 1 and color 2 170: Stripe spacing between color 1 and color 2 (non-emitting region) 200: Perspective view of an organic EL panel emitting light in a planar manner 201: Perspective view of an organic EL panel emitting light in a stripe pattern 300: Schematic cross-sectional view of a pair of color 1 and color 2 stripes during light emission 301: View of 300 from the light emission side 310: Light emitted to the outside from the stripe-shaped light-emitting region (first organic EL element) 320: Region of the stripe-shaped light-emitting region (first organic EL element) viewed from the light emission side 330: Region of the non-emitting region viewed from the light emission side 340: Light emitted to the outside from the first stage stripe-shaped light-emitting region (first organic EL element) 350: Light emitted to the outside from the second stage stripe-shaped light-emitting region (second organic EL element) 360: Region of the first stage stripe-shaped light-emitting region (first organic EL element) viewed from the light emission side 370: Region of the second striped light-emitting region (second organic EL element) as seen from the light-emitting surface side 400: Organic EL panel 402, 403: First light-emitting region 404: Second light-emitting region 405, 406: First light-emitting region 407, 407a-407c: Second light-emitting region 500: Schematic cross-sectional view of the two-stage organic EL element during light emission 501: View of 500 from the light-emitting surface side

Claims

1. An organic EL light-emitting device comprising a first organic EL light-emitting element, a sealing portion, and a second organic EL light-emitting element, wherein the first organic EL light-emitting element, the sealing portion, and the second organic EL light-emitting element are stacked in this order from the light-emitting side, the first organic EL light-emitting element has a first light-emitting region and one or more non-light-emitting regions when viewed from above, and the second organic EL light-emitting element has a plurality of second light-emitting regions at positions overlapping with the non-light-emitting regions when viewed from above.

2. The organic EL light-emitting apparatus according to claim 1, wherein the plurality of second light-emitting regions include two or more second light-emitting regions that have different light-emitting colors when lit.

3. The organic EL light-emitting apparatus according to claim 1, wherein the plurality of second light-emitting regions include second light-emitting regions whose light-emitting color when lit is the same as the light-emitting color of the first light-emitting region.

4. The organic EL light-emitting device according to claim 1, wherein the first organic EL light-emitting element has a plurality of first light-emitting regions, the non-light-emitting regions are provided between adjacent first light-emitting regions when viewed from above, and the adjacent first light-emitting regions each have a different light-emitting color when lit.

5. An organic EL light-emitting apparatus according to any one of claims 1 to 4, comprising a light-emitting substrate, wherein the light-emitting substrate is provided on the light-emitting side of the first organic EL light-emitting element, and the sealing portion includes a sealing layer that seals the first organic EL light-emitting element together with the light-emitting substrate.

6. The organic EL light-emitting apparatus according to any one of claims 1 to 4, wherein the sealing portion has a light-transmitting portion that can transmit light, and the light-transmitting portion is arranged to overlap with each second light-emitting region when viewed from above.

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