Display panel and display device

Abstract

The display panel comprises a plurality of light-emitting devices and an adjusting function layer located on the light-emitting sides of the light-emitting devices. The light-emitting device is provided with a light-emitting part which is used for emitting light; the adjusting function layer is used for converging light rays emitted by the light-emitting parts and then emitting the light rays; the light-emitting device comprises a first light-emitting device and a second light-emitting device which respectively emit light rays with different colors; the area of the orthographic projection of the light-emitting part of the first light-emitting device on the adjusting function layer is smaller than the area of the orthographic projection of the light-emitting part of the second light-emitting device on the adjusting function layer; the first light-emitting device is further provided with an adjusting part, and the orthographic projection of the light-emitting part of the first light-emitting device on the adjusting function layer surrounds the orthographic projection of the adjusting part on the adjusting function layer; and the adjusting part does not emit light.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Organic light-emitting diode (OLED) display technology uses luminescent materials driven by an electric current to produce a display. OLED displays offer advantages such as ultra-lightness, ultra-thinness, high brightness, wide viewing angles, low voltage, low power consumption, fast response, high definition, shock resistance, flexibility, low cost, simple manufacturing, minimal use of raw materials, high luminous efficiency, and a wide temperature range. Utility Model Content

[0003] In one aspect, a display panel is provided, comprising a plurality of light-emitting devices and an adjustment function layer located on the light-emitting side of the plurality of light-emitting devices. The plurality of light-emitting devices have a light-emitting portion configured to emit light. The adjustment function layer is configured to converge the light emitted by each of the light-emitting portions and then emit the light. The light-emitting devices include a first light-emitting device and a second light-emitting device, each of which emits light of a different color. The area of ​​the orthographic projection of the light-emitting portion of the first light-emitting device on the adjustment function layer is smaller than the area of ​​the orthographic projection of the light-emitting portion of the second light-emitting device on the adjustment function layer. The first light-emitting device further comprises an adjustment portion, the orthographic projection of the light-emitting portion of the first light-emitting device on the adjustment function layer surrounding the orthographic projection of the adjustment portion on the adjustment function layer. The adjustment portion does not emit light.

[0004] In some embodiments, in the same first light-emitting device, a shape of an outer contour of an orthographic projection of the light-emitting portion on the adjustment function layer is the same as a shape of an outer contour of an orthographic projection of the adjustment portion on the adjustment function layer.

[0005] In some embodiments, the shape of the orthographic projection of the adjustment portion on the adjustment function layer is a centrosymmetric shape.

[0006] In some embodiments, the shape of the orthographic projection of the adjustment portion on the adjustment function layer includes a square or a circle.

[0007] In some embodiments, a center of an orthographic projection of the adjustment portion on the adjustment function layer coincides with a center of an orthographic projection of the light-emitting portion on the adjustment function layer.

[0008] In some embodiments, the display panel includes a substrate and a planar layer stacked in sequence. The plurality of light-emitting devices are located between the planar layer and the adjustment function layer. The planar layer has a plurality of grooves extending along its thickness. The adjustment portion is located within the grooves, and the light-emitting portion is located on a side of the planar layer away from the substrate, with the spacing between the adjustment portion and the substrate being smaller than the spacing between the light-emitting portion and the substrate.

[0009] In some embodiments, the depth of the groove is greater than or equal to the thickness of the adjustment portion.

[0010] In some embodiments, the light-emitting device includes a first electrode, a light-emitting layer, and a second electrode sequentially stacked on the planar layer. The first electrode of the first light-emitting device includes a first subsection and a second subsection that are disconnected. The first subsection is located within the groove and constitutes a portion of the adjustment portion. The second subsection is located outside the groove and constitutes a portion of the light-emitting portion.

[0011] In some embodiments, the display panel further comprises a defining layer. The defining layer is located between the flat layer and the adjustment function layer. The defining layer comprises a plurality of first openings and a plurality of second openings. The groove is connected to the first opening, and the orthographic projection of the groove on the substrate is located within the orthographic projection range of the first opening on the substrate. A portion of the first light-emitting device is located within the first opening and the corresponding groove. A portion of the second light-emitting device is located within the second opening. The adjustment function layer comprises a light-shielding layer and a plurality of color filters. The light-shielding layer comprises a plurality of third openings, and the color filter is located at least within the third opening. The orthographic projection of one of the first openings on the substrate is located within the orthographic projection range of one of the third openings on the substrate.

[0012] In some embodiments, the first light-emitting device includes a third light-emitting device and a fourth light-emitting device that emit light of different colors. The display panel includes a main display area and a secondary display area. The pixel density of the secondary display area is lower than that of the main display area. The second, third, and fourth light-emitting devices are located in the secondary display area. The light-emitting devices further include a fifth, sixth, and seventh light-emitting devices located in the main display area. The light emitted by the second light-emitting device has the same color as the light emitted by the sixth light-emitting device, the light emitted by the third light-emitting device has the same color as the light emitted by the fifth light-emitting device, and the light emitted by the fourth light-emitting device has the same color as the light emitted by the seventh light-emitting device. The multiple light-emitting devices in the secondary display area include multiple first light-emitting device groups. The first light-emitting device group includes at least one adjacent second light-emitting device, at least one adjacent third light-emitting device, and at least one adjacent fourth light-emitting device. The multiple light-emitting devices in the main display area include multiple second light-emitting device groups. The second light-emitting device group includes at least one adjacent fifth light-emitting device, at least one adjacent sixth light-emitting device, and at least one adjacent seventh light-emitting device. The ratio of the sum of the areas of the orthographic projections of the light-emitting portions of the third light-emitting devices in the same first light-emitting device group on the adjustment function layer, the sum of the areas of the orthographic projections of the light-emitting portions of the second light-emitting devices on the adjustment function layer, and the sum of the areas of the orthographic projections of the light-emitting portions of the fourth light-emitting devices on the adjustment function layer, to the sum of the areas of the orthographic projections of the light-emitting portions of the fifth light-emitting devices in the same second light-emitting device group on the adjustment function layer, the sum of the areas of the orthographic projections of the light-emitting portions of the sixth light-emitting devices on the adjustment function layer, and the sum of the areas of the orthographic projections of the light-emitting portions of the seventh light-emitting devices on the adjustment function layer, are equal.

[0013] In some embodiments, an arrangement density of the plurality of light-emitting devices in the first light-emitting device group is less than or equal to an arrangement density of the plurality of light-emitting devices in the second light-emitting device group.

[0014] In some embodiments, in the third light-emitting device, the area of ​​the light-emitting portion is equal to the area of ​​the adjustment portion. In the fourth light-emitting device, the area of ​​the light-emitting portion is equal to the area of ​​the adjustment portion.

[0015] In some embodiments, the ratio of the sum of the areas of the orthographic projections of the light-emitting parts of each of the third light-emitting devices in the same first light-emitting device group on the adjustment functional layer, the sum of the areas of the orthographic projections of the light-emitting parts of each of the second light-emitting devices on the adjustment functional layer, and the sum of the areas of the orthographic projections of the light-emitting parts of each of the fourth light-emitting devices on the adjustment functional layer is 1:2:1.8.

[0016] In some embodiments, the plurality of first openings include a plurality of first sub-openings and a plurality of second sub-openings. A portion of the third light-emitting device is located within the first sub-opening, and a portion of the fourth light-emitting device is located within the second sub-opening. Within the same group of first light-emitting devices, the ratio of the sum of the areas of the first sub-openings corresponding to each of the third light-emitting devices, the sum of the areas of the second openings corresponding to each of the second light-emitting devices, and the sum of the areas of the second sub-openings directly opposite each of the fourth light-emitting devices is 1:1:1.8.

[0017] In some embodiments, the first light-emitting device group includes a second light-emitting device, a third light-emitting device, and a fourth light-emitting device. Lines connecting the centers of the second light-emitting device, the third light-emitting device, and the fourth light-emitting device form a triangle. The second light-emitting device group includes a fifth light-emitting device, two sixth light-emitting devices, and a seventh light-emitting device. A line connecting the centers of the fifth light-emitting device and the seventh light-emitting device intersects a line connecting the centers of the two sixth light-emitting devices.

[0018] In some embodiments, the area of ​​the orthographic projection of the light-emitting portion of the third light-emitting device on the adjustment function layer is equal to the area of ​​the orthographic projection of the light-emitting portion of the fifth light-emitting device on the adjustment function layer. The area of ​​the orthographic projection of the light-emitting portion of the fourth light-emitting device on the adjustment function layer is equal to the area of ​​the orthographic projection of the light-emitting portion of the seventh light-emitting device on the adjustment function layer. The area of ​​the orthographic projection of the light-emitting portion of the second light-emitting device on the adjustment function layer is twice the area of ​​the orthographic projection of the light-emitting portion of the sixth light-emitting device on the adjustment function layer.

[0019] In some embodiments, the second light emitting device emits green light, the third light emitting device emits red light, and the fourth light emitting device emits blue light.

[0020] In some embodiments, the first light-emitting device includes a third light-emitting device and a fourth light-emitting device that emit light of different colors. The plurality of light-emitting devices includes a plurality of third light-emitting device groups. The third light-emitting device group includes at least one second light-emitting device, at least one third light-emitting device, and at least one fourth light-emitting device. The display panel further includes a defining layer. The defining layer is located between the planar layer and the adjustment function layer. The defining layer includes a plurality of first openings and a plurality of second openings. The groove communicates with the first opening, and the orthographic projection of the groove on the substrate is located within the orthographic projection of the first opening on the substrate. The first opening includes a first sub-opening and a second sub-opening. A portion of the third light-emitting device is located within the first sub-opening, a portion of the fourth light-emitting device is located within the second sub-opening, and a portion of the second light-emitting device is located within the second opening. Within the same third light-emitting device group, the ratio of the sum of the areas of the first sub-openings corresponding to each third light-emitting device, the sum of the areas of the second openings corresponding to each second light-emitting device, and the sum of the areas of the second sub-openings directly opposite each fourth light-emitting device is 1:1:1.

[0021] In some embodiments, in the same third light-emitting device group, the ratio of the sum of the areas of the orthographic projections of the light-emitting portions of the at least one third light-emitting device on the adjustment functional layer, the sum of the areas of the orthographic projections of the light-emitting portions of the at least one fourth light-emitting device on the adjustment functional layer, and the sum of the areas of the orthographic projections of the light-emitting portions of the at least one second light-emitting device on the adjustment functional layer is 1:1:1.8.

[0022] In some embodiments, the third light-emitting device group includes a first light-emitting device, a third light-emitting device, and a second light-emitting device, and lines connecting the centers of the second light-emitting device, the third light-emitting device, and the fourth light-emitting device form a triangle.

[0023] In some embodiments, the adjustment function layer includes a first dimming layer and a second dimming layer arranged in a stacked manner. The refractive index of the first dimming layer is lower than that of the second dimming layer. The first dimming layer includes a plurality of fourth openings, and the sidewalls of the fourth openings form an acute angle with the plane of the planar layer. A portion of the second dimming layer is located within the fourth openings, and another portion of the second dimming layer is located on a side of the first dimming layer away from the planar layer. The orthographic projection of the first opening on the planar layer is within the orthographic projection range of the fourth openings on the planar layer.

[0024] In some embodiments, the adjustment function layer includes a first dimming layer and a second dimming layer stacked in layers. The refractive index of the first dimming layer is greater than the refractive index of the second dimming layer. The first dimming layer includes multiple first dimming sections spaced apart from each other, with the sidewalls of the first dimming sections forming an acute angle with the plane of the planar layer. The second dimming layer covers the multiple first dimming sections. The orthographic projection of the first opening on the planar layer is located within the orthographic projection of the first dimming section on the planar layer.

[0025] In some embodiments, the adjustment function layer further includes a color filter layer disposed between the plurality of light-emitting devices and the first dimming layer. The color filter layer includes a light-shielding layer and a plurality of spaced color filters. The light-shielding layer includes a plurality of third openings, and the color filters are located at least within the third openings. The orthographic projections of the first openings on the planar layer are located within the orthographic projections of the third openings on the planar layer.

[0026] In some embodiments, the adjustment function layer includes a third dimming layer and a color filter layer that are stacked. The third dimming layer includes a plurality of third dimming parts that are spaced apart. The angle between the side wall of the third dimming part and the plane where the flat layer is located is an acute angle. The color filter layer includes a light shielding layer and a plurality of color filters that are spaced apart. The light shielding layer includes a plurality of third openings, the third dimming part is located within the third openings, and there is a gap between the side wall of the third dimming part and the side wall of the third opening. The color filter is located at least within the gap and on the side of the third dimming part away from the substrate. The orthographic projection of the first opening on the flat layer is located within the orthographic projection range of the third opening on the flat layer, and is located within the orthographic projection range of the third dimming part on the flat layer. The refractive index of the color filter is smaller than the refractive index of the third dimming part.

[0027] In some embodiments, the second light emitting device emits blue light, the third light emitting device emits red light, and the fourth light emitting device emits green light.

[0028] On the other hand, a display device is provided, comprising: a display panel as described in any of the above embodiments, and an optical element located on the non-light-emitting side of a secondary display area of ​​the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings. Furthermore, the drawings described below should be considered schematic diagrams and are not intended to limit the actual dimensions, etc., of the products involved in the embodiments of the present disclosure.

[0030] Figure 1 is a structural diagram of a display device according to some embodiments of the present disclosure;

[0031] Figure 2 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0032] Figure 3 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0033] Figure 4 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0034] Figure 5 is a structural diagram of a display panel according to one implementation manner;

[0035] Figure 6 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0036] Figure 7 is a structural diagram of a display panel according to some embodiments of the present disclosure;

[0037] Figure 8 Based on Figure 7 A local magnified structural diagram of the CC' region;

[0038] Figure 9 is a structural diagram of a plurality of light-emitting devices according to some embodiments of the present disclosure;

[0039] Figure 10 is another structural diagram of a plurality of light-emitting devices according to some embodiments of the present disclosure;

[0040] Figure 11 is another structural diagram of a plurality of light-emitting devices according to some embodiments of the present disclosure;

[0041] Figure 12 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0042] Figure 13 is a structural diagram of another display panel according to some embodiments of the present disclosure;

[0043] Figure 14 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0044] Figure 15 is another structural diagram of a plurality of light-emitting devices according to some embodiments of the present disclosure;

[0045] Figure 16 is another structural diagram of a plurality of light-emitting devices according to some embodiments of the present disclosure;

[0046] Figure 17 is another structural diagram of a plurality of light-emitting devices according to some embodiments of the present disclosure;

[0047] Figure 18 is another structural diagram of a plurality of light-emitting devices according to some embodiments of the present disclosure;

[0048] Figure 19 is a structural diagram of multiple light-emitting devices according to another implementation manner;

[0049] Figure 20 is another structural diagram of multiple light-emitting devices according to another implementation manner;

[0050] Figure 21 is a chromaticity curve diagram of the main display area, the first sub-display area, and the second sub-display area according to some embodiments of the present disclosure;

[0051] Figure 22 is another structural diagram of a plurality of light-emitting devices according to some embodiments of the present disclosure;

[0052] Figure 23 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0053] Figure 24 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0054] Figure 25 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0055] Figure 26 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0056] Figure 27 is a structural diagram of another display device according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0057] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the embodiments described are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present disclosure.

[0058] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to indicate that the particular features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0059] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0060] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0061] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0062] As used herein, "perpendicular" and "equal" include the conditions described and conditions similar to the conditions described, where the range of the similar conditions is within an acceptable deviation range, where the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range for approximate perpendicularity can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, where the acceptable deviation range for approximate equality can be, for example, that the difference between the two equalities is less than or equal to 5% of either.

[0063] It will be understood that when a layer or element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present therebetween.

[0064] Exemplary embodiments are described herein with reference to cross-sectional and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of layers and the area of ​​regions are exaggerated for clarity. Therefore, variations in shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances are contemplated. Therefore, the exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include deviations in shape due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shape of regions of the device and are not intended to limit the scope of the exemplary embodiments.

[0065] like Figure 1 As shown, some embodiments of the present disclosure provide a display device 1000. The display device 1000 can be any display device 1000 that displays either motion (e.g., video) or fixed (e.g., still images) and text or images. More specifically, it is contemplated that the display device 1000 of the embodiments described can be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal data assistants (PDAs), handheld or portable computers, GPS receivers / navigators, cameras, MP4 video players, video cameras, game consoles, watches, clocks, calculators, television monitors, flat-panel displays, computer monitors, automotive displays (e.g., speedometer displays, etc.), navigation systems, cockpit controls and / or displays, camera view displays (e.g., displays for rearview cameras in vehicles), electronic photographs, electronic billboards or signs, projectors, architectural structures, packaging, and aesthetic structures (e.g., displays for images of a piece of jewelry), etc.

[0066] like Figure 2 As shown, the display device 1000 includes a display panel 100 and a cover plate 200 .

[0067] In some examples, the display panel 100 may be an organic light-emitting diode (OLED) display panel. The cover plate 200 is located on the light-emitting side of the display panel 100 to protect the display panel 100 from damage such as external impacts. The cover plate 200 may be made of glass.

[0068] In some examples, such as Figure 3 As shown, the display device 1000 may further include optical elements 300, such as an under-screen camera, an under-screen fingerprint recognition sensor, an infrared sensor, etc., so that the display device 1000 can realize a variety of different functions such as taking pictures, recording videos, and fingerprint recognition.

[0069] In some embodiments, as Figure 4 As shown, the display panel 100 in the display device 1000 includes a plurality of light-emitting devices 10 and an adjustment function layer 20 located on the light-emitting side of the plurality of light-emitting devices 10 .

[0070] The light-emitting side of the light-emitting device 10 refers to the side from which the light-emitting device 10 emits light.

[0071] like Figure 8 As shown, multiple light-emitting devices 10 include a light-emitting portion 101 for emitting light. The light-emitting portion 101 has a certain thickness. For example, the multiple light-emitting portions 101 can emit light of different colors, such as red, green, and blue. The different colors of light interact with each other, allowing the display panel 100 to display an image.

[0072] like Figure 4 As shown, the light emitting device 10 includes a first light emitting device 11 and a second light emitting device 12 that emit light of different colors. For example, the wavelength range of the light emitted by the first light emitting device 11 is different from the wavelength range of the light emitted by the second light emitting device 12.

[0073] Based on factors such as luminous lifetime, the orthographic projection areas of the light-emitting parts of light-emitting devices that emit light of different colors are different.

[0074] Illustratively, the area of ​​the orthographic projection of the light-emitting portion 101 of the first light-emitting device 11 on the adjustment function layer 20 is smaller than the area of ​​the orthographic projection of the light-emitting portion 101 of the second light-emitting device 12 on the adjustment function layer 20. Thus, the area of ​​the light-emitting portion 101 of the first light-emitting device 11 in a top view is smaller than the area of ​​the light-emitting portion 101 of the second light-emitting device 12 in a top view.

[0075] The adjustment function layer 20 is used to converge and emit the light emitted by each light emitting portion 101 . Thus, the adjustment function layer 20 can improve the light extraction efficiency of the light emitting device 10 , adjust the light extraction viewing angle of the light emitting device 10 , and thus improve the brightness of the display panel 100 .

[0076] For example, Figure 4 As shown, the adjustment function layer 20 can adjust part of the large-angle light in the light emitted by the light-emitting portion 101, such as blocking, reflecting or refracting it, so that the part of the light is emitted roughly in the direction of a small angle of view (close to the normal angle of view), thereby achieving light convergence.

[0077] In one implementation, the adjustment function layer in the display panel includes a light shielding layer 21' (herein, the adjustment function layer 20' is used to illustrate the light shielding effect of the light shielding layer 21'). The light shielding layer 21' has multiple openings 211', and each opening 211' is corresponding to the light emitting portion 101' of a light emitting device. The sizes of the openings 211' are not equal, but the difference between the size of the light emitting portion 101' emitting different colors and the size of the corresponding opening 211' is equal. Figure 5 , the light with a larger viewing angle emitted from the edge portion of the light emitting portion 101' of the display panel 100' close to its edge is easily blocked by the light shielding layer 21'. Since the difference S4 between the size S3 of each opening 211' and the size S1 of the corresponding light emitting portion 101' is equal (it can be understood that, Figure 5The explanation is made by taking the case where the spacing between the two edge portions on the left and right sides of the light-emitting portion 101' and the side walls of the adjacent opening 211' in the first direction X is equal, and the spacing is S4 / 2. The difference between the size S3 of the opening 211' and the size S1 of the corresponding light-emitting portion 101' is S4. Of course, the spacing between the two edge portions on the left and right sides of the light-emitting portion 101' and the side walls of the adjacent opening 211' in the first direction X may also be unequal). The size S2 of the edge portion blocked by the portion of the light-shielding layer 21' located around each opening 211' is equal. In the case where the size S1 of the light-emitting portion 101' is unequal, the proportion of the size S2 of the edge portion to the size S1 of the light-emitting portion is unequal. Specifically, the larger the size S1 of the light-emitting portion 101' (the size here can be the size of the orthographic projection of the light-emitting portion 101' on the adjustment function layer), the smaller the ratio of the size S2 of the edge portion to the size S1 of the light-emitting portion 101', and the smaller the shielding effect of the adjustment function layer 20' on the light emitted by the light-emitting portion 101'. Since the light-emitting portions 101' of the light-emitting devices 10' that emit light of different colors in the display panel 100' are of different sizes, the proportion of the light that is blocked in the light emitted by each light-emitting portion 101' to the total light emitted by the light-emitting portion is different, which in turn causes different losses of the light emitted by different light-emitting portions 101' after being emitted through the adjustment function layer 20', resulting in large differences in the brightness of the light of different colors emitted by each light-emitting device 10' at the same viewing angle (mainly at a wide viewing angle), causing the display panel to display serious color cast of white light at a wide viewing angle.

[0078] Figure 5 The dotted line with an arrow in the middle indicates the direction of light emission.

[0079] Based on this, in the embodiments of the present disclosure, Figures 6 to 8 As shown, the first luminous means 11 is further provided with an adjustment portion 102 .

[0080] like Figure 9 As shown, the orthographic projection of the light-emitting portion 101 of the first light-emitting device 11 on the adjustment function layer 20 surrounds the orthographic projection of the adjustment portion 102 on the adjustment function layer 20. The orthographic projection of the light-emitting portion 101 can be in the shape of a closed figure, such as a ring figure, and the orthographic projection of the adjustment portion 102 is located within the closed figure.

[0081] For example, Figure 6 and Figure 9 As shown, the adjustment portion 102 does not emit light. However, part of the light emitted by the light-emitting portion 101, such as light with a larger viewing angle, can be incident on the portion of the adjustment function layer 20 that is directly opposite the adjustment portion 102, so that light is incident on both portions of the adjustment function layer 20 that are directly opposite the light-emitting portion 101 and the adjustment portion 102. Figure 8The dashed line with an arrow in the middle indicates the direction of light emission.

[0082] Since the orthographic projection area of ​​the light-emitting portion 101 of the first light-emitting device 11 is relatively small, the above-mentioned arrangement can make the size of the outer contour of the orthographic projection of the light-emitting portion 101 larger while the orthographic projection area of ​​the light-emitting portion 101 of the first light-emitting device 11 remains unchanged, thereby reducing the difference between the size of the outer contour of the orthographic projection of the light-emitting portion 101 of the first light-emitting device 11 and the size of the outer contour of the orthographic projection of the light-emitting portion 101 of the second light-emitting device 12, so that the difference between the shielding effect of the adjustment functional layer 20 on the light emitted by the light-emitting portion 101 of the first light-emitting device 11 and the shielding effect of the adjustment functional layer 20 on the light emitted by the light-emitting portion 101 of the second light-emitting device 12 is small or tends to be consistent, so that the loss of the light at a larger viewing angle emitted by the two light-emitting portions 101 after passing through the adjustment functional layer 20 tends to be consistent, so that the brightness of the first light-emitting device 11 and the second light-emitting device 12 at the same larger viewing angle can tend to be consistent. When the light emitted by the first light emitting device 11 and the light emitted by the second light emitting device 12 are synthesized into light of other colors, such as white light, severe color cast of the synthesized white light is avoided, thereby alleviating the color cast of the display panel 100 .

[0083] In some embodiments, as Figure 9 and Figure 10 As shown, in the same first light-emitting device 11 , the shape of the outer contour of the orthographic projection of the light-emitting portion 101 on the adjustment function layer 20 is the same as the shape of the outer contour of the orthographic projection of the adjustment portion 102 on the adjustment function layer 20 .

[0084] Since the orthographic projection of the light-emitting portion 101 of the first light-emitting device 11 on the adjustment function layer 20 surrounds the orthographic projection of the adjustment portion 102 on the adjustment function layer 20, the above-mentioned arrangement can make the light emitted by the light-emitting portion 101 and incident on the part of the adjustment function layer 20 opposite to the adjustment portion 102 more uniform, which is beneficial to improving the uniformity of the light after being emitted through the adjustment function layer 20 and alleviating the color deviation phenomenon of the display panel 100.

[0085] In some embodiments, as Figures 9 to 11 As shown, the shape of the orthographic projection of the adjustment portion 102 on the adjustment function layer 20 is a centrosymmetric shape.

[0086] For example, the shape of the orthographic projection of the light emitting portion 101 on the adjustment function layer 20 may also be a centrosymmetric shape.

[0087] This helps to make the distances from each point on the outer contour of the light-emitting portion 101 to the center of the adjustment portion 102 tend to be equal, so that the amount of light emitted by the light-emitting portion 101 at different viewing angles (the different viewing angles here can be different larger viewing angles) blocked by the adjustment function layer 20 tends to be consistent, and the amount of light emitted after passing through the adjustment function layer 20 at different viewing angles tends to be consistent, which helps to improve the light emission uniformity of the first light-emitting device 11, improve the brightness difference of the light emitted by the first light-emitting device 11 at different viewing angles, and alleviate the color cast of the display panel 100. It also allows the light emitted by the light-emitting portion 101 to be incident on the portion of the adjustment function layer 20 that is directly opposite the light-emitting portion 101 and the adjustment portion 102, further improving the light emission uniformity of the light-emitting device 10 and improving the display effect of the display panel 100.

[0088] For example, Figures 9 to 11 As shown, the shape of the orthographic projection of the adjustment portion 102 on the adjustment function layer 20 includes a square or a circle.

[0089] For example, in the same first light-emitting device 11 , the orthographic projection of the adjustment portion 102 on the adjustment function layer 20 is a square, and the orthographic projection of the light-emitting portion 101 on the adjustment function layer 20 is also a square.

[0090] For another example, in the same first light-emitting device 11 , the orthographic projection of the adjustment portion 102 on the adjustment function layer 20 is a circle, and the orthographic projection of the light-emitting portion 101 on the adjustment function layer 20 is also a circle.

[0091] By adopting the above-mentioned setting method, the uniformity of the light output of the first light-emitting device 11 can be improved, the brightness difference of the light emitted by the first light-emitting device 11 at different viewing angles can be improved, the difference in the amount of light loss after the light emitted by the first light-emitting device 11 and the light emitted by the second light-emitting device 12 after adjusting the functional layer 20 can be reduced, the color deviation phenomenon of the display panel 100 can be improved, and the display effect of the display panel 100 can be improved.

[0092] In some embodiments, as Figures 9 to 11 As shown, the center of the orthographic projection of the adjustment portion 102 on the adjustment function layer 20 coincides with the center of the orthographic projection of the light emitting portion 101 on the adjustment function layer 20 .

[0093] In this way, the distances from each point on the outer contour line of the light-emitting portion 101 to the center of the adjustment portion 102 can be further made equal, ensuring the uniformity of the brightness of the light at different viewing angles emitted by the first light-emitting portion 101 after adjusting the functional layer 20, thereby alleviating the color cast of the display panel 100.

[0094] In some embodiments, as Figure 7As shown, the display panel 100 includes a substrate 30, a pixel circuit layer 40, and a planar layer 50 stacked in sequence. Figure 6 As shown, a plurality of light emitting devices 10 are located between the planar layer 50 and the adjustment function layer 20 .

[0095] There are many types of the substrate 30 , which can be selected according to actual needs.

[0096] For example, the substrate 30 may be a rigid substrate, such as a glass substrate or a PMMA (Polymethylmethacrylate) substrate.

[0097] For example, the substrate 30 may be a flexible substrate 30. The flexible substrate 30 may be a PET (Polyethyleneterephthalate) substrate,

[0098] A PEN (Polyethylene naphthalate twoformicacid glycolester) substrate or a PI (Polyimide) substrate, etc. In this case, the display panel 100 can realize a flexible display, for example.

[0099] The substrate 30 may be a single-layer structure or a composite structure.

[0100] In the case where the substrate 30 is a composite structure, the substrate 30 may include a support layer and a buffer layer stacked in sequence. The material of the support layer may be glass, and the material of the buffer layer may be PI or the like.

[0101] Exemplarily, the pixel circuit layer 40 includes a semiconductor layer Poly, a first gate conductive layer GT1, a second gate conductive layer GT2, a first source and drain conductive layer SD1, etc., which are sequentially stacked on one side of the substrate 30.

[0102] For example, a first gate insulating layer GI1 may be provided between the semiconductor layer Poly and the first gate conductive layer GT1, a second gate insulating layer GI2 may be provided between the first gate conductive layer GT1 and the second gate conductive layer GT2, and an interlayer dielectric layer ILD may be provided between the second gate conductive layer GT2 and the first source and drain conductive layer SD1.

[0103] For example, the materials of the first gate insulating layer GI1 , the second gate insulating layer GI2 , and the interlayer dielectric layer ILD may be silicon oxide, silicon nitride, silicon oxynitride, or the like.

[0104] Exemplarily, the material of the semiconductor layer Poly may include amorphous silicon, single crystal silicon, polycrystalline silicon, or a metal oxide semiconductor material. Exemplarily, the first gate conductive layer GT1, the second gate conductive layer GT2, and the first source and drain conductive layer SD1 are all made of conductive materials. The materials of the first gate conductive layer GT1 and the second gate conductive layer GT2 may be the same, for example.

[0105] For example, the materials of the first gate conductive layer GT1, the second gate conductive layer GT2, and the first source and drain conductive layer SD1 can be metal materials, such as a combination of one or more of Al (aluminum), Ag (silver), Cu (copper), Cr (chromium), Mo (molybdenum), and Ti (titanium).

[0106] It should be noted that the orthographic projection of the semiconductor layer Poly on the substrate 30 overlaps with the orthographic projection of the first gate conductive layer GT1 on the substrate. After the first gate conductive layer GT1 is formed on the side of the semiconductor layer Poly away from the substrate, the semiconductor layer Poly can be doped using the first gate conductive layer GT1 as a mask, so that the portion of the semiconductor layer Poly covered by the first gate conductive layer GT1 forms the active pattern (i.e., the channel region) of each transistor, and the portion of the semiconductor layer Poly not covered by the first gate conductive layer GT1 forms a conductor, which can serve as the first or second electrode of each transistor. The portion where the first gate conductive layer GT1 overlaps with the semiconductor layer Poly forms the gate pattern (i.e., the gate) of each transistor.

[0107] A plurality of transistors and at least one capacitor constitute a pixel circuit, and the pixel circuit layer includes a plurality of pixel circuits. The above-mentioned transistors may be thin film transistors (TFTs). Thin film transistors include dual-gate transistors and single-gate transistors.

[0108] In some examples, the material of the planar layer 50 may be an insulating material. For example, the insulating material may be an organic material such as polyimide.

[0109] For example, Figure 7 As shown, the planar layer 50 has a plurality of grooves 51 extending along the thickness direction thereof. The plurality of grooves 51 are distributed at intervals, and one first light emitting device 11 corresponds to one groove 51 .

[0110] The adjustment portion 102 of the first light emitting device 11 is located in the groove 51 , and the light emitting portion 101 is located on a side of the planar layer 50 away from the substrate 30 .

[0111] For example, the thickness of the adjustment portion 102 is equal to or substantially equal to the thickness of the light emitting portion 101 .

[0112] Because the adjustment portion 102 is located within the groove 51, the distance between the adjustment portion 102 and the substrate 30 is smaller than the distance between the light-emitting portion 101 and the substrate 30. A step exists between the surface of the adjustment portion 102 facing away from the substrate 30 and the surface of the light-emitting portion 101 facing away from the substrate 30. This ensures that the side surfaces of the adjustment portion 102 along the thickness direction are at least partially separated from the side surfaces of the light-emitting portion 101 along the thickness direction, helping to ensure that the adjustment portion 102 does not emit light.

[0113] In some examples, such as Figure 7 As shown, the depth of the groove 51 is greater than or equal to the thickness of the adjustment portion 102 .

[0114] Thus, the adjustment portion 102 is entirely located in the groove 51, and the surface of the adjustment portion 102 away from the substrate 30 is lower than the surface of the flat layer 50 away from the substrate 30, or the surface of the adjustment portion 102 away from the substrate 30 is flush with the surface of the flat layer 50 away from the substrate 30, so that the adjustment portion 102 and the light-emitting portion 101 are disconnected, and the adjustment portion 102 and the light-emitting portion 101 are insulated, ensuring that the adjustment portion 102 does not participate in the light-emitting device, so that only the light-emitting portion 101 in the first light-emitting device 11 emits light, so that the adjustment portion 102 has the effect of increasing the outer contour size of the positive projection of the light-emitting portion 101, and keeps the light-emitting area of ​​the light-emitting portion 101 unchanged, so that the light emitted by the light-emitting portion 101 of the first light-emitting device 11 and the light emitted by the light-emitting portion 101 of the second light-emitting device 12 can be blocked by the adjustment functional layer 20 to be consistent, thereby alleviating the color deviation phenomenon of the display panel 100.

[0115] For example, Figure 8 As shown, the light emitting device 10 includes a first electrode 1001 , a light emitting layer 1002 , and a second electrode 1003 sequentially stacked on a planar layer 50 .

[0116] For example, the first electrode 1001 may be one of an anode and a cathode, and the second electrode 1003 may be the other of the anode and the cathode.

[0117] For example, Figure 7 and Figure 8 As shown, the first electrode 1001 can be connected to the transistor TFT in the pixel circuit to receive an electrical signal from the pixel circuit, the second electrode 1003 receives a common voltage, and the light-emitting layer 1002 can emit light under the action of the above electrical signal and common voltage.

[0118] It is understandable that Figure 7 Can be Figure 9 The cross-sectional structure diagram along DD' direction, or Figure 10 Cross-sectional structural diagram along EE' direction.

[0119] In some examples, such as Figure 8 As shown, the first electrode 1001 of the first light emitting device 11 includes a disconnected first sub-portion 1001A and a disconnected second sub-portion 1001B. The first sub-portion 1001A is located inside the groove 51 and constitutes a part of the adjustment portion 102. The second sub-portion 1001B is located outside the groove 51 and constitutes a part of the light emitting portion 101.

[0120] For example, the second subsection 1001B is connected to the pixel circuit and receives electrical signals from the pixel circuit. Since the second subsection 1001B is part of the light-emitting section 101 and the first subsection 1001A is part of the regulating section 102, the orthographic projection of the second subsection 1001B surrounds the first subsection 1001A. The first subsection 1001A is disconnected from the second subsection 1001B. As a result, the second subsection 1001B cannot receive electrical signals from the pixel circuit and cannot provide electrical signals to the portion of the light-emitting layer 1002 directly opposite the second subsection 1001B, causing that portion of the light-emitting layer 1002 to not emit light.

[0121] It is understood that the portion of the light-emitting layer 1002 facing the groove 51 and the portion located on the planar layer 50 can be disconnected or connected. The portion of the second electrode 1003 facing the groove 51 and the portion located on the planar layer 50 can be disconnected or connected.

[0122] In some other examples, the depth of the groove 51 is greater than or equal to the thickness of the first electrode 1001. Thus, the first sub-section 1001A and the second sub-section 1001B are disconnected from each other, and the adjustment section 102 is prevented from emitting light.

[0123] In some embodiments, as Figure 12 As shown, the display panel 100 in the display device 1000 further includes a defining layer 60 . The defining layer 60 is located between the planar layer 50 and the adjustment function layer 20 .

[0124] Exemplarily, the orthographic projection shape of the defining layer 60 on the substrate 30 is a mesh shape, and the defining layer 60 includes a plurality of first openings 61 and a plurality of second openings 62 .

[0125] like Figure 12 and Figure 13 As shown, one light emitting device 10 is disposed correspondingly to one first opening 61 or one second opening 62 .

[0126] For example, Figure 13As shown, a portion of the second light-emitting device 12 is located within the second opening 62, with each second light-emitting device 12 corresponding to each second opening 62. The first electrode 1001 of the second light-emitting device 12 is located between the planar layer 50 and the defining layer 60, with at least a portion of the first electrode 1001 exposed through the second opening 62. A portion of the light-emitting layer 1002 of the second light-emitting device 12 is located within the second opening 62, while another portion overlaps the defining layer 60. The second electrodes 1003 of each light-emitting device 10 are interconnected, forming a single integrated structure. Along the thickness of the substrate, the second electrode 1003 of each second light-emitting device 12 covers its light-emitting layer 1002.

[0127] For example, Figure 8 As shown, a first light-emitting device 11 is disposed corresponding to a first opening 61, a groove 51 is connected to the first opening 61, and the orthographic projection of the groove 51 on the substrate 30 is located within the orthographic projection of the first opening 61 on the substrate 30. A portion of the first light-emitting device 11 is located within the first opening 61 and the corresponding groove 51. Specifically, a first subsection 1001A of the first electrode 1001 of the first light-emitting device 11 is located within the groove 51, and a second subsection 1001B of the first electrode 1001 is located between the planar layer 50 and the defining layer 60, with at least a portion of the second subsection 1001B exposed through the first opening 61 of the defining layer 60. The light-emitting layer 1002 of the first light-emitting device 11 is located on the first subsection 1001A of the first electrode 1001, within the first opening 61, and on the defining layer 60. Along the thickness direction of the substrate, the second electrode 1003 of the first light-emitting device 11 covers its light-emitting layer 1002.

[0128] It is understood that the light-emitting portion 101 of the light-emitting device 10 is the portion of the light-emitting device 10 that is directly opposite the first opening 61 or the second opening 62 (the portion of the light-emitting device that is directly opposite the first opening 61 does not include the portion of the light-emitting device that is directly opposite the groove 51). The adjustment portion 102 of the first light-emitting device 11 is the portion of the first light-emitting device 11 that is directly opposite the groove 51.

[0129] There are many structures of the adjustment function layer 20 , which can be selected and set according to actual conditions, and the embodiments of the present disclosure do not limit this.

[0130] In some embodiments, as Figure 12 As shown, the adjustment function layer 20 may be a color filter layer, and the adjustment function layer 20 includes a light shielding layer 21 and a plurality of color filters 22 .

[0131] For example, the light shielding layer 21 may be a black matrix. The black matrix material includes an opaque material. The light shielding layer 21 includes a plurality of third openings 211. The top view of the light shielding layer 21 may be substantially a mesh structure, and the third openings 211 constitute meshes of the mesh structure.

[0132] The color filter 22 is at least located in the third opening 211 . For example, the color filter 22 is located in the third opening 211 . In another example, a portion of the color filter 22 is located in the third opening 211 , and another portion is located on the light shielding layer 21 .

[0133] The light emitted by the light emitting device 10 can pass through the color filter 22 and then be emitted.

[0134] Light emitting devices 10 emitting different colors can be configured with different types of color filters 22. The color filters 22 can adjust the light emitted by the light emitting devices 10, so that the color purity and color gamut of the light emitted through the color filters 22 are higher, thereby improving the display effect of the display panel 100.

[0135] The display panel 100 including the above-mentioned color filter 22 can adopt a COE (CF On Encapsulation) structure, so that the display panel 100 has the advantages of high contrast, low power consumption, and a wide color gamut, and can also make the thickness of the display panel 100 smaller, which is conducive to achieving a lightweight and thin design of the display panel 100.

[0136] For example, Figure 12 As shown, among the multiple third openings 211 , one third opening 211 among a certain number of third openings 211 is arranged corresponding to one first opening 61 , and the orthographic projection of one first opening 61 on the substrate 30 is located within the orthographic projection range of one third opening 211 on the substrate 30 .

[0137] For example, the orthographic projection boundary of a first opening 61 on the substrate 30 is within the orthographic projection boundary of a third opening 211 on the substrate 30. The orthographic projection area of ​​the first opening 61 is smaller than or equal to the orthographic projection area of ​​the third opening 211.

[0138] As a result, the light emitted by the first light-emitting device 11 can be emitted through the third opening 211, resulting in a larger amount of light emitted by the first light-emitting device 11. The light-shielding layer 21 can also prevent light from mixing between the light emitted by the first light-emitting device 11 and the light emitted by other adjacent light-emitting devices, thereby improving the display effect of the display panel 100. In addition, when the display panel 100 is off, the light-shielding layer 21 can also block external incident light, thereby improving the reflection color problem in the off state.

[0139] Illustratively, among the plurality of third openings 211 , one third opening 211 among a certain number of third openings 211 is arranged corresponding to one second opening 62 , and the orthographic projection of one second opening 62 on the substrate 30 is located within the orthographic projection range of one third opening 211 on the substrate 30 .

[0140] As a result, the light emitted by the second light-emitting device 12 can be emitted through the third opening 211, resulting in a larger amount of light emitted by the second light-emitting device 12. The light-shielding layer 21 can also prevent the light emitted by the second light-emitting device 12 from mixing with other light, thereby improving the display effect of the display panel 100. In addition, when the display panel 100 is off, the light-shielding layer 21 can also block external incident light, thereby improving the reflection color problem in the off state.

[0141] In some examples, such as Figure 3 and Figure 14 As shown, the display panel 100 includes a display area A, which is a region of the display panel 100 used for displaying images.

[0142] The display area A may be in the shape of a rectangle or a rounded rectangle, etc. A rounded rectangle means that all four corners of the rectangle are rounded.

[0143] Exemplarily, the display area A includes a main display area A1 and a sub-display area A2.

[0144] For example, the shape of the auxiliary display area A2 can be circular, elliptical, rectangular, etc.

[0145] The auxiliary display area A2 is located on at least one side of the main display area A1.

[0146] For example, the auxiliary display area A2 is located on one side or multiple sides of the main display area A1.

[0147] For example, when the display area A is in the shape of a rectangle, the sub-display area A2 can be located at any position in the middle of the rectangle, or the sub-display area A2 can be located near any corner of the rectangle, or the sub-display area A2 can be located near any side of the rectangle.

[0148] In the display panel 100 , portions located in the main display area A1 and the auxiliary display area A2 can both be used for image display.

[0149] The pixel density of the auxiliary display area A2 is lower than that of the main display area A1 , and thus, the light transmittance of the auxiliary display area A2 is higher than that of the main display area A1 .

[0150] Exemplarily, the pixel density of the auxiliary display area A2 is equal to the pixel density of the main display area A1 , and the light transmittance of the auxiliary display area A2 is greater than the light transmittance of the main display area A1 .

[0151] As can be seen from the above, the display device 1000 may further include an optical element 300 . The optical element 300 is located in the auxiliary display area A2 and on the non-light-emitting side of the display panel 100 .

[0152] The light-emitting side of the display panel 100 refers to the side of the display panel 100 that can display an image. The non-light-emitting side of the display panel 100 refers to the side opposite to the light-emitting side of the display panel 100.

[0153] During the operation of the optical element 300, external light must pass through the secondary display area A2 and illuminate the optical element 300 to activate its corresponding function. External light can enter the optical element 300 through the secondary display area A2, which has a higher light transmittance, thereby increasing the amount of light collected by the optical element 300. This can optimize the performance of the optical element 300, for example, improving sensor recognition accuracy or camera image quality. The sensor can be a fingerprint sensor or an infrared sensor.

[0154] In the embodiment of the present disclosure, the optical element 300 is taken as an example as a camera.

[0155] For example, when the camera is working, external light can pass through the portion of the display panel located in the secondary display area A2. In this way, the camera can collect this light to achieve the functions of taking pictures, recording videos, or collecting signals. For example, when the camera is working (for example, when the user takes a selfie), the secondary display area A2 can present a black screen, and the main display area A1 can present the user's selfie picture, which clearly shows the location of the camera. Alternatively, the secondary display area A2 and the main display area A1 as a whole present the user's selfie picture, without showing the location of the camera.

[0156] Exemplarily, the portions of the display panel located in the auxiliary display area A2 and the main display area A1 can both be displayed, so that the display panel 100 and the display device 1000 as a whole can display images.

[0157] In some examples, such as Figure 15 As shown, the first light emitting device 11 includes a third light emitting device 13 and a fourth light emitting device 14 that emit light of different colors. The second light emitting device 12, the third light emitting device 13, and the fourth light emitting device 14 are located in the auxiliary display area A2.

[0158] like Figure 15 As shown, the light emitting device 10 further includes: a fifth light emitting device 15, a sixth light emitting device 16 and a seventh light emitting device 17 located in the main display area A1. The fifth light emitting device 15, the sixth light emitting device 16 and the seventh light emitting device 17 emit light of different colors respectively.

[0159] Specifically, the color of the light emitted by the second light-emitting device 12 is the same as the color of the light emitted by the sixth light-emitting device 16, the color of the light emitted by the third light-emitting device 13 is the same as the color of the light emitted by the fifth light-emitting device 15, and the color of the light emitted by the fourth light-emitting device 14 is the same as the color of the light emitted by the seventh light-emitting device 17.

[0160] The color type emitted by the light-emitting device 10 of the main display area A1 is the same as the color type emitted by the light-emitting device 10 of the sub-display area A2. When the main display area A1 and the sub-display area A2 are used to display images of the same color and the same brightness, the above setting is beneficial to reducing the difference in display color between the main display area A1 and the sub-display area A2, and improving the display uniformity of the display panel 100.

[0161] Exemplarily, the second light emitting device 12 emits green light, the third light emitting device 13 emits red light, and the fourth light emitting device 14 emits blue light.

[0162] For example, Figures 15 to 18 As shown, the plurality of light-emitting devices 10 in the auxiliary display area A2 include a plurality of first light-emitting device groups 110. The first light-emitting device group 110 includes at least one second light-emitting device 12, at least one third light-emitting device 13, and at least one fourth light-emitting device 14, which are adjacent to each other. The plurality of light-emitting devices 10 in the main display area A1 include a plurality of second light-emitting device groups 120. The second light-emitting device group 120 includes at least one fifth light-emitting device 15, at least one sixth light-emitting device 16, and at least one seventh light-emitting device 17, which are adjacent to each other.

[0163] For example, the number of second light-emitting devices 12 included in the first light-emitting device group 110 may be equal to or different from the number of sixth light-emitting devices 16 included in the second light-emitting device group 120. The number of third light-emitting devices 13 included in the first light-emitting device group 110 may be equal to or different from the number of fifth light-emitting devices 15 included in the second light-emitting device group 120. The number of fourth light-emitting devices 14 included in the first light-emitting device group 110 may be equal to or different from the number of seventh light-emitting devices 17 included in the second light-emitting device group 120.

[0164] The ratio of the sum of the areas of the orthographic projections of the light-emitting portions 101 in the third light-emitting devices 13 on the adjustment functional layer 20, the sum of the areas of the orthographic projections of the light-emitting portions 101 in the second light-emitting devices 12 on the adjustment functional layer 20, and the sum of the areas of the orthographic projections of the light-emitting portions 101 in the fourth light-emitting devices 14 on the adjustment functional layer 20 in the same first light-emitting device group 110, to the sum of the areas of the orthographic projections of the light-emitting portions 101 in the fifth light-emitting devices 15 on the adjustment functional layer 20, the sum of the areas of the orthographic projections of the light-emitting portions 101 in the sixth light-emitting devices 16 on the adjustment functional layer 20, and the sum of the areas of the orthographic projections of the light-emitting portions 101 in the seventh light-emitting devices 17 on the adjustment functional layer 20 in the same second light-emitting device group 120 are equal.

[0165] That is to say, in the same first light-emitting device group 110, the ratio of the total area of ​​the light-emitting parts 101 emitting red light, the total area of ​​the light-emitting parts 101 emitting green light, and the total area of ​​the light-emitting parts 101 emitting blue light, and in the same second light-emitting device group 120, the ratio of the total area of ​​the light-emitting parts 101 emitting red light, the total area of ​​the light-emitting parts 101 emitting green light, and the total area of ​​the light-emitting parts 101 emitting blue light are equal, so that the color gamut range of the colors synthesized by the light emitted by the first light-emitting device group 110 and the second light-emitting device group 120 can be similar or the same, which is beneficial to reduce the difference in the images displayed by the main display area A1 and the sub-display area A2, and improve the display uniformity of the display panel 100.

[0166] It is understandable that there are many ways to set the pixel density of the auxiliary display area A2 to be smaller than the pixel density of the main display area A1, and the setting can be selected according to actual needs.

[0167] In some examples, such as Figures 15 to 18 As shown, the arrangement density of the plurality of light emitting devices 10 in the first light emitting device group 110 is less than or equal to the arrangement density of the plurality of light emitting devices 10 in the second light emitting device group 120 .

[0168] For example, the arrangement density of the plurality of light-emitting devices 10 in the first light-emitting device group 110 is equal to the arrangement density of the plurality of light-emitting devices 10 in the second light-emitting device group 120. The spacing between two adjacent light-emitting devices 10 in the first light-emitting device group 110 is equal to the spacing between two adjacent light-emitting devices 10 in the second light-emitting device group 120. Therefore, the density of the first light-emitting device group 110 in the auxiliary display area A2 is less than the density of the second light-emitting device group 120 in the main display area A1. In other words, the spacing between two adjacent first light-emitting device groups 110 in the auxiliary display area A2 is greater than the spacing between two adjacent second light-emitting device groups 120 in the main display area A1.

[0169] For example, Figure 16 and Figure 18 As shown, the arrangement density of the plurality of light-emitting devices 10 in the first light-emitting device group 110 is smaller than the arrangement density of the plurality of light-emitting devices 10 in the second light-emitting device group 120. The spacing between the light-emitting devices 10 in the first light-emitting device group 110 is larger than the spacing between the light-emitting devices 10 in the second light-emitting device group 120.

[0170] It is understood that the pixel density of the secondary display area A2 is equal to or substantially equal to the arrangement density of the plurality of light emitting devices 10 in the secondary display area A2. The pixel density of the main display area A1 is equal to or substantially equal to the arrangement density of the plurality of light emitting devices 10 in the main display area A1.

[0171] In this way, it can be ensured that the pixel density of the secondary display area A2 is lower than the pixel density of the main display area A1, so that the transmittance of the secondary display area A2 is greater than the transmittance of the main display area A1, which is beneficial to increase the amount of light collected by the optical element 300 and improve the performance of the optical element 300.

[0172] In some examples, such as Figure 15 As shown, in the third light emitting device 13, the area of ​​the light emitting portion 101 is equal to the area of ​​the adjustment portion 102. In the fourth light emitting device 14, the area of ​​the light emitting portion 101 is equal to the area of ​​the adjustment portion 102.

[0173] Here, the area of ​​the light-emitting portion 101 refers to the area of ​​the orthographic projection of the light-emitting portion 101 on the substrate 30. The area of ​​the adjustment portion 102 refers to the area of ​​the orthographic projection of the adjustment portion 102 on the substrate 30.

[0174] In this way, the size of the outer contour of the orthographic projection of the light-emitting portion 101 in the third light-emitting device 13, the size of the outer contour of the orthographic projection of the light-emitting portion 101 in the fourth light-emitting device 14, and the size of the orthographic projection of the light-emitting portion 101 in the second light-emitting device 12 can be made equal, so that the shielding effect of the adjustment functional layer 20 on the light emitted by the third light-emitting device 13, the shielding effect of the light emitted by the fourth light-emitting device 14, and the shielding effect of the light emitted by the second light-emitting device 12 are made consistent, so that the light loss of each light-emitting device 10 (each light-emitting device 10 is the third light-emitting device 13, the fourth light-emitting device 14, and the second light-emitting device 12) after passing through the adjustment functional layer 20 is made consistent, and the brightness of the light emitted by each light-emitting device 10 after passing through the adjustment functional layer 20 is similar at the same larger viewing angle, thereby alleviating the color deviation phenomenon of the image displayed in the secondary display area A2, and reducing the color deviation difference between the image displayed in the secondary display area A2 and the image displayed in the main display area A1.

[0175] In some examples, the ratio of the sum of the areas of the orthographic projections of the light-emitting portions 101 of each third light-emitting device 13 in the same first light-emitting device group 110 on the adjustment functional layer 20, the sum of the areas of the orthographic projections of the light-emitting portions 101 of each second light-emitting device 12 on the adjustment functional layer 20, and the sum of the areas of the orthographic projections of the light-emitting portions 101 of each fourth light-emitting device 14 on the adjustment functional layer 20 is 1:2:1.8.

[0176] For example, the ratio of the sum of the areas of the orthographic projections of the light-emitting portions 101 of each fifth light-emitting device 15 in the same second light-emitting device group 120 on the adjustment functional layer 20, the sum of the areas of the orthographic projections of the light-emitting portions 101 of each sixth light-emitting device 16 on the adjustment functional layer 20, and the sum of the areas of the orthographic projections of the light-emitting portions 101 of each seventh light-emitting device 17 on the adjustment functional layer 20 is also 1:2:1.8.

[0177] As a result, the color gamut of the light emitted by the first light-emitting device group 110 and the color gamut of the light emitted by the second light-emitting device group 120 can be close to or equal, which helps reduce the display differences between the main display area A1 and the auxiliary display area A2. It can also make the light-emitting devices 10 emitting light of different colors in the main display area A1 and the auxiliary display area A2 have a similar light-emitting lifespan, making the light-emitting devices 10 emitting different colors in the display panel 100 have a similar light-emitting lifespan, thereby improving the service life of the display panel 100 and the display device 1000.

[0178] In some examples, such as Figure 8 and Figure 12 As shown, the plurality of first openings 61 include a plurality of first sub-openings 611 and a plurality of second sub-openings 612 . A portion of the third light emitting device 13 is located in the first sub-opening 611 , and a portion of the fourth light emitting device 14 is located in the second sub-opening 612 .

[0179] In the same first light-emitting device group 110, the ratio of the sum of the areas of the first sub-openings 611 corresponding to each third light-emitting device 13, the sum of the areas of the second openings 62 corresponding to each second light-emitting device 12, and the sum of the areas of the second sub-openings 612 directly opposite each fourth light-emitting device 14 is 1:1:1.8.

[0180] In this way, it can be ensured that in the sub-display area A2, the shading layer 21 has roughly the same shielding effect on the light of different colors emitted by each light-emitting device 10, so that the loss of the light emitted by each light-emitting device 10 after passing through the shading layer 21 tends to be consistent, so that the brightness of the light of different colors emitted through the shading layer 21 at the same larger viewing angle is similar, thereby making the brightness of the light of different colors emitted from the sub-display area A2 in the display panel 100 at the same larger viewing angle tend to be consistent, thereby alleviating the color deviation phenomenon of the sub-display area A2 of the display panel 100.

[0181] For example, in the main display area A1, a portion of the fifth light-emitting device 15 is located within one second opening 62, a portion of the sixth light-emitting device 16 is located within another second opening 62, and a portion of the seventh light-emitting device 17 is located within yet another second opening 62. In the same second light-emitting device group 120, the ratio of the total area of ​​the second openings 62 corresponding to the light-emitting devices 10 emitting red light (i.e., the total area of ​​the second openings 62 corresponding to the fifth light-emitting devices 15), the total area of ​​the second openings 62 corresponding to the light-emitting devices 10 emitting green light (i.e., the total area of ​​the second openings 62 corresponding to the sixth light-emitting devices 16), and the total area of ​​the second openings 62 corresponding to the light-emitting devices 10 emitting blue light (i.e., the total area of ​​the second openings 62 corresponding to the seventh light-emitting devices 17) is also 1:1:1.8.

[0182] In this way, the brightness ranges of different colors of light emitted by the main display area A1 and the sub-display area A2 of the display panel 100 can be made consistent, so that the degree of color deviation of the main display area A1 and the sub-display area A2 can be made consistent (for example, the images displayed in the main display area A1 and the sub-display area A2 are both green), thereby improving the display uniformity of the main display area A1 and the sub-display area A2 and improving the display effect of the display panel 100 and the display device 1000.

[0183] In some examples, such as Figure 15 As shown, the first light emitting device group 110 includes a second light emitting device 12, a third light emitting device 13, and a fourth light emitting device 14. The lines connecting the centers of the second light emitting device 12, the third light emitting device 13, and the fourth light emitting device 14 form a triangle.

[0184] In the auxiliary display area A2, a plurality of first light emitting device groups 110 are arranged in an array.

[0185] The arrangement of the plurality of light emitting devices 10 in the auxiliary display area A2 may be referred to as a Real RGB arrangement or a Real RGB-like arrangement.

[0186] like Figure 15 As shown, the second light emitting device group 120 includes a fifth light emitting device 15, two sixth light emitting devices 16, and a seventh light emitting device 17. The line connecting the centers of the fifth light emitting device 15 and the seventh light emitting device 17 intersects the line connecting the centers of the two sixth light emitting devices 16.

[0187] In the main display area A1, multiple second light emitting device groups 120 are arranged in an array. In the same second light emitting device group 120, the fifth light emitting device 15 and the seventh light emitting device 17 can be arranged in a row, and the two sixth light emitting devices 16 can be arranged in a column.

[0188] By adopting the above-mentioned setting method, the jagged feeling between the images displayed by different first light-emitting device groups 110 in the sub-display area A2 can be improved, the difference between the image displayed in the sub-display area A2 and the image displayed in the main display area A1 can be reduced, the uniformity of the image displayed by the display panel 100 can be improved, and the display effect of the display device 1000 can be improved.

[0189] In some examples, such as Figure 15 As shown, the area of ​​the orthographic projection of the light-emitting portion 101 of the third light-emitting device 13 on the adjustment function layer 20 is equal to the area of ​​the orthographic projection of the light-emitting portion 101 of the fifth light-emitting device 15 on the adjustment function layer 20. The area of ​​the orthographic projection of the light-emitting portion 101 of the fourth light-emitting device 14 on the adjustment function layer 20 is equal to the area of ​​the orthographic projection of the light-emitting portion 101 of the seventh light-emitting device 17 on the adjustment function layer 20. The area of ​​the orthographic projection of the light-emitting portion 101 of the second light-emitting device 12 on the adjustment function layer 20 is twice the area of ​​the orthographic projection of the light-emitting portion 101 of the sixth light-emitting device 16 on the adjustment function layer 20.

[0190] In this way, it is possible to ensure that the area of ​​the light-emitting portion 101 emitting red light in the first light-emitting device group 110 is equal to the area of ​​the light-emitting portion 101 emitting red light in the second light-emitting device group 120, ensure that the area of ​​the light-emitting portion 101 emitting green light in the first light-emitting device group 110 is equal to the area of ​​the light-emitting portion 101 emitting green light in the second light-emitting device group 120, and ensure that the area of ​​the light-emitting portion 101 emitting blue light in the first light-emitting device group 110 is equal to the area of ​​the light-emitting portion 101 emitting blue light in the second light-emitting device group 120. In this way, when the sub-display area A2 and the main display area A1 display the same color, the difference between the color displayed by the sub-display area A2 and the color displayed by the main display area A1 is small, which is beneficial to improving the color deviation between the main display area A1 and the sub-display area A2, and improving the display uniformity of the display panel 100.

[0191] In another implementation, Figure 19As shown, the secondary display area A2' of the display panel includes a plurality of first light-emitting device groups 110', and the first light-emitting device group 110' includes a red light-emitting device R1, two green third light-emitting devices G1 and a blue light-emitting device B1. The main display area A1' includes a plurality of second light-emitting device groups 120', and the second light-emitting device group includes a red light-emitting device R2, a blue light-emitting device B2 and two green light-emitting devices G2. When displaying an image, the light-emitting devices will borrow or share the light emitted by adjacent light-emitting devices for display (also known as pixel borrowing) to increase the pixel density. Since the pixel density of the main display area A1' is greater than the pixel density of the secondary display area A2', the light-emitting devices of the secondary display area A2' will have a more obvious jagged feeling in the image displayed when the pixels are borrowed, resulting in a poor display effect of the display panel.

[0192] In another implementation, the solution in the above another implementation is improved. Figure 20 As shown, the secondary display area A2' of the display panel includes multiple first light-emitting device groups 110', each of which includes a red light-emitting device R1, a green third light-emitting device G1, and a blue light-emitting device B1. The main display area A1' includes multiple second light-emitting device groups 120', each of which includes a red light-emitting device R2, a blue light-emitting device B2, and two green light-emitting devices G2. The orthographic projection area of ​​the light-emitting portion of the green light-emitting device G1 in the first light-emitting device group 110' is twice the orthographic projection area of ​​the light-emitting portion of the green light-emitting device G2 in the second light-emitting device group 120'. The orthographic projection area of ​​the light-emitting portion of the red light-emitting device R1 in the first light-emitting device group 110' is equal to the orthographic projection area of ​​the light-emitting portion of the red light-emitting device R2 in the second light-emitting device group 120'. The orthographic projection area of ​​the light-emitting portion of the blue light-emitting device B1 in the first light-emitting device group 110' is equal to the orthographic projection area of ​​the light-emitting portion of the blue light-emitting device B2 in the second light-emitting device group 120'. Therefore, based on the arrangement of the light-emitting devices in the secondary display area, when the display panel displays images, the secondary display area will not use the above-mentioned pixel borrowing method to increase pixel density, thereby alleviating the jagged effect of the image displayed in the secondary display area.

[0193] However, since the orthographic projection size of the light-emitting portion of the green light-emitting device G1 in the first light-emitting device group 110' is large, the light-shielding layer has a weak shielding effect on the light emitted by the light-emitting portion, so that the light-emitting portion located in the sub-display area A2' emits relatively more green light at a wide viewing angle, while the light-shielding layer has a strong shielding effect on the red light emitted by the red light-emitting device R1, and the red light-emitting device R1 in the sub-display area A2' emits less red light at a wide viewing angle. Similarly, the light-shielding layer has a strong shielding effect on the blue light emitted by the blue light-emitting device B1, and the blue light-emitting device B1 in the sub-display area A2' also emits less blue light at a wide viewing angle. Therefore, when the red light, green light, and blue light in the sub-display area A2' are synthesized into white light, the brightness of the green light at a wide viewing angle is greater, which makes the synthesized white light greenish, and the image displayed in the sub-display area A2' has a serious color deviation. There is an obvious difference between the images displayed in the sub-display area A2' and the main display area A1', which seriously affects the display effect of the display panel.

[0194] In the embodiment of the present disclosure, an adjustment portion 102 is provided in the third light-emitting device 13 and the fourth light-emitting device 14 of the sub-display area A2. The adjustment portion 102 can increase the size of the outer contour of the positive projection of the light-emitting portion 101, thereby improving the color deviation of the image displayed in the sub-display area A2, effectively reducing the difference between the images displayed in the sub-display A2 and the main display area A1, and improving the display effect of the display panel 100.

[0195] In addition, in order to explore the color shift of the image displayed by the display panel in the embodiment of the present disclosure, the main display area of ​​the display panel, the secondary display area of ​​the display panel in the above-mentioned another implementation manner, and the secondary display area of ​​the display panel in the above-mentioned embodiment of the present disclosure are all set to display a white image, and their color shift conditions are simulated to obtain the corresponding chromaticity diagram, as shown in FIG. Figure 21 shown.

[0196] Figure 21 In the figure, 0° indicates that the viewing angle is 0°, that is, the normal viewing angle. In the chromaticity curve of the main display area, each point represents a different viewing angle. Specifically, from right to left, each point is the chromaticity of the 0° viewing angle, the chromaticity of the 15° viewing angle, the chromaticity of the 30° viewing angle, the chromaticity of the 45° viewing angle, the chromaticity of the 60° viewing angle, and the chromaticity of the 75° viewing angle. The chromaticity curve of the first sub-display area represents the chromaticity curve of the sub-display area of ​​the display panel in one implementation method, and the chromaticity curve of the second sub-display area represents the chromaticity curve of the sub-display area of ​​the display panel in an embodiment of the present disclosure. The three elliptical dotted circles represent three different color deviation values, 2.5, 3.5 and 4.5. The closer the chromaticity curve is to the dotted circle 4.5, the greater the degree of color deviation, and the closer the chromaticity curve is to the dotted circle 2.5, the smaller the degree of color deviation.

[0197] Depend on Figure 21It can be seen that as the viewing angle increases, the degree of color deviation of the image displayed by the display panel increases. Among them, at a larger viewing angle, the degree of color deviation of the image displayed by the first sub-display area is the largest. The chromaticity value of the image displayed by the second sub-display area (i.e., the sub-display area of ​​the display panel in the embodiment of the present disclosure) is close to the chromaticity value of the image displayed by the main display area, and the degree of color deviation of the image displayed by the second sub-display area is small, and the color deviation is consistent with the color deviation of the image displayed by the main display area. It can be seen that the display panel 100 provided by the embodiment of the present disclosure improves the color deviation phenomenon of the image displayed by the sub-display area A2, and makes the color deviation difference between the images displayed by the sub-display area A2 and the main display area A1 smaller, alleviates the display difference between the main display area A1 and the sub-display area A2, and improves the display uniformity of the display panel 100 and the display device 1000.

[0198] In other embodiments, Figures 23 to 27 As shown, the functions of the adjustment function layer 20 include reflection or refraction, etc., and the structure of the adjustment function layer 20 is different from the adjustment function layers in some of the above embodiments.

[0199] It is understandable that Figure 23 Can be Figure 22 A cross-sectional structural diagram cut along the FF' direction, Figure 24 Can be Figure 22 Another cross-sectional structural diagram cut along the FF' direction, Figure 25 Can be Figure 22 A cross-sectional structural diagram cut along the GG' direction, Figure 26 Can be Figure 22 Another cross-sectional structural diagram cut along the GG' direction, Figure 27 Can be Figure 22 Another cross-sectional structural diagram cut along the GG' direction.

[0200] In this embodiment, if Figure 22 As shown, the plurality of light emitting devices 10 include a plurality of third light emitting device groups 130. The third light emitting device group 130 includes at least one second light emitting device 12, at least one third light emitting device 13 and at least one fourth light emitting device 14.

[0201] For example, the third light emitting device group 130 may include multiple second light emitting devices 12, multiple third light emitting devices 13, and multiple fourth light emitting devices 14.

[0202] Exemplarily, the second light emitting device 12 emits blue light, the third light emitting device 13 emits red light, and the fourth light emitting device 14 emits green light.

[0203] like Figure 23 As shown, in the above-mentioned defining layer 60, the first opening 61 includes a first sub-opening 611 and a second sub-opening 612. A portion of the third light-emitting device 13 is located in the first sub-opening 611, a portion of the fourth light-emitting device 14 is located in the second sub-opening 612, and a portion of the second light-emitting device 12 is located in the second opening 62.

[0204] like Figure 23 As shown, in the same third light-emitting device group 130, the ratio of the sum of the areas of the first sub-openings 611 corresponding to each third light-emitting device 13, the sum of the areas of the second openings 62 corresponding to each second light-emitting device 12, and the sum of the areas of the second sub-openings 612 directly opposite each fourth light-emitting device 14 is 1:1:1.

[0205] In this way, the convergence effect of the adjustment functional layer 20 on the first sub-opening 611 emitting red light, the second opening 62 emitting blue light, and the second sub-opening 612 emitting green light can be made consistent, so that the brightness of the red light, green light, and blue light emitted by the adjustment functional layer 20 at the same smaller viewing angle tends to be consistent, thereby alleviating the color cast of the image displayed by the display panel 100 at a smaller viewing angle.

[0206] In some examples, such as Figure 22 As shown, in the same third light-emitting device group 130, the ratio of the sum of the areas of the orthographic projections of the light-emitting portion 101 in at least one third light-emitting device 13 on the adjustment functional layer 20, the sum of the areas of the orthographic projections of the light-emitting portion 101 in at least one fourth light-emitting device 14 on the adjustment functional layer 20, and the sum of the areas of the orthographic projections of the light-emitting portion 101 in at least one second light-emitting device 12 on the adjustment functional layer 20 is 1:1:1.8.

[0207] Thus, the light emitting devices 10 emitting light of different colors in the same third light emitting device group 130 can have similar light emitting lifetimes and longer light emitting lifetimes, which is beneficial to improving the service life of the display panel 100 and the display device 1000 .

[0208] In some examples, such as Figure 22 As shown, the third light emitting device group 130 includes a first light emitting device 11, a third light emitting device 13, and a second light emitting device 12. The lines connecting the centers of the second light emitting device 12, the third light emitting device 13, and the fourth light emitting device 14 form a triangle.

[0209] The plurality of third light emitting device groups 130 are arranged in an array.

[0210] The arrangement of the plurality of light-emitting devices 10 described above may be referred to as a Real RGB arrangement or a Real RGB-like arrangement.

[0211] Therefore, it is possible to avoid displaying by using pixel borrowing between adjacent light-emitting devices 10 , thereby alleviating the jagged effect of the image displayed by the display panel 100 .

[0212] In some examples, light can be emitted through the adjustment function layer 20. Figure 23 As shown, the adjustment function layer 20 includes a first dimming layer 23 and a second dimming layer 24 that are stacked.

[0213] The refractive index of the first dimming layer 23 is smaller than the refractive index of the second dimming layer 24 .

[0214] like Figure 23 As shown, the first dimming layer 23 includes a plurality of fourth openings 231. The angle α1 between the sidewalls of the fourth openings 231 and the plane of the planar layer 50 is an acute angle. For example, the cross-sectional view of the fourth openings 231 along the thickness direction of the substrate 30 may be an inverted trapezoid.

[0215] A portion of the second dimming layer 24 is located within the fourth opening 231, while another portion of the second dimming layer 24 is located on the side of the first dimming layer 23 away from the planar layer 50. Among the plurality of fourth openings 231, a portion of the fourth openings 231 is provided in a one-to-one correspondence with the plurality of first openings 61, and the orthographic projections of the first openings 61 on the planar layer 50 are located within the range of the orthographic projections of the fourth openings 231 on the planar layer 50. A portion of the fourth openings 231 is provided in a one-to-one correspondence with the plurality of second openings 62, and the orthographic projections of the second openings 62 on the planar layer 50 are located within the range of the orthographic projections of the fourth openings 231 on the planar layer 50.

[0216] Light emitted by the light-emitting portion 101 of the light-emitting device 10 can be emitted from the fourth opening 231. Part of the light emitted by the light-emitting portion 101 of the light-emitting device 10 (for example, light with a larger viewing angle) is incident on the sidewall of the fourth opening 231. Since the angle α1 between the sidewall and the plane where the flat layer 50 is located is an acute angle, and the refractive index of the first dimming layer 23 is less than the refractive index of the second dimming layer 24, this part of the light is easily totally reflected by the sidewall and then emitted from the second dimming layer 24, so that the emission angle of this part of the light changes from a larger viewing angle to a smaller viewing angle, thereby emitting more light with a smaller viewing angle from the light-emitting device 10, making the light emitted by the display panel 100 more concentrated, which is beneficial to improving the light extraction efficiency and display brightness of the light-emitting device 10. In addition, since the third light-emitting device 13 and the fourth light-emitting device 14 are provided with an adjustment part 102, the size of the outer contour of the orthographic projection of the light-emitting part 101 of the third light-emitting device 13 and the size of the orthographic projection of the light-emitting part 101 of the third light-emitting device 13 are consistent with the size of the orthographic projection of the light-emitting part 101 of the second light-emitting device 12, so that the adjustment functional layer 20 has a similar convergence effect on the light emitted by each light-emitting device 10, so that the brightness of light of each color at the same viewing angle (smaller viewing angle) tends to be consistent, thereby improving the color deviation phenomenon of the display panel 100.

[0217] In another embodiment, the display panel includes multiple third light-emitting device groups. The third light-emitting device group includes a red light-emitting device, a blue light-emitting device, and a green light-emitting device. The adjustment function layer in the display panel includes the first dimming layer and the second dimming layer described above. A portion of the wide-angle light emitted by the light-emitting device undergoes total reflection at the sidewalls of the fourth opening, converting the wide-angle light into narrow-angle light. This results in a higher amount of narrow-angle light emitted by the light-emitting device. The blue light-emitting device has a larger orthographic projection area, and after being subjected to the adjustment function layer, the light-emitting portion emits a relatively higher amount of narrow-angle light. The red light-emitting device has a smaller orthographic projection area, and after being subjected to the adjustment function layer, the light-emitting portion emits a relatively lower amount of wide-angle light. The green light-emitting device has a smaller orthographic projection area, and after being subjected to the adjustment function layer, the light-emitting portion emits a relatively lower amount of wide-angle light. When the red, green, and blue light rays are combined to form white light, the white light synthesized by the display panel is bluish, resulting in a severe color cast in the image displayed by the display panel.

[0218] In the embodiment of the present disclosure, the third light-emitting device 13 and the fourth light-emitting device 14 include an adjustment portion 102, and the adjustment portion 102 is used to increase the size of the outer contour of the positive projection of the light-emitting portion 101, so that the brightness of the light at the same viewing angle emitted by the third light-emitting device 13, the fourth light-emitting device 14 and the second light-emitting device 12 tends to be consistent after passing through the adjustment functional layer 20, and the convergence effect of the adjustment functional layer 20 on different light-emitting devices tends to be consistent, thereby alleviating the color deviation phenomenon of the display panel 100.

[0219] In other examples, such as Figure 24 As shown, the adjustment function layer 20 includes a first dimming layer 23 and a second dimming layer 24 that are stacked.

[0220] The first dimming layer 23 includes a plurality of first dimming parts 232 spaced apart from each other. The angle α2 between the sidewalls of the first dimming parts 232 and the plane of the planar layer 50 is an acute angle. For example, the cross-section of the first dimming parts 232 along the thickness direction of the substrate 30 is a right trapezoid.

[0221] Among the plurality of first light modulators 232, a portion of the first light modulators 232 are provided in a one-to-one correspondence with the plurality of first openings 61, and the orthographic projections of the first openings 61 on the flat layer 50 are located within the orthographic projection range of the first light modulators 232 on the flat layer 50. Another portion of the first light modulators 232 are provided in a one-to-one correspondence with the plurality of second openings 62, and the orthographic projections of the second openings 62 on the flat layer 50 are located within the orthographic projection range of the first light modulators 232 on the flat layer 50.

[0222] The second light-adjusting layer 24 covers the plurality of first light-adjusting parts 232 . The refractive index of the first light-adjusting layer 23 is greater than that of the second light-adjusting layer 24 .

[0223] As a result, the majority of light emitted by the light-emitting device 10 is emitted through the first dimming portion 232. Some light emitted by the light-emitting device 10 is incident on the sidewall of the first dimming portion 232. Because the angle α2 between the sidewall and the plane of the flat layer 50 is acute, and the refractive index of the first dimming layer 23 is greater than that of the second dimming layer 24, this portion of light is refracted by the sidewall before entering the second dimming layer 24 and then exiting. Light emitted by the second dimming layer 24 tends to be emitted in a direction perpendicular to the substrate 30, converging the light into light with a smaller viewing angle. This improves the light extraction efficiency of the light-emitting device 10 and the display brightness of the display panel 100. Furthermore, because the third and fourth light-emitting devices 13 and 14 are provided with the adjustment portion 102, this arrangement allows the adjustment function layer 20 to have a similar convergence effect on the light emitted by each light-emitting device 10, thereby ensuring that the brightness of each color of light at the same viewing angle is consistent, thereby improving the color cast of the display panel 100.

[0224] Based on the above two examples, when the adjustment function layer 20 includes the first dimming layer 23 and the second dimming layer 24 , the adjustment function layer 20 further includes: a color filter layer provided between the plurality of light emitting devices 10 and the first dimming layer 23 .

[0225] like Figure 25 and Figure 26As shown, the color filter layer includes a light shielding layer 21 and a plurality of spaced color filters 22. The light shielding layer 21 includes a plurality of third openings 211, and the color filters 22 are at least located in the third openings 211.

[0226] For example, the light shielding layer 21 may be a black matrix. The black matrix material includes an opaque material. The light shielding layer 21 includes a plurality of third openings 211. The top view of the light shielding layer 21 may be substantially a mesh structure, and the third openings 211 constitute meshes of the mesh structure.

[0227] For example, the color filter 22 is located in the third opening 211 . In another example, a portion of the color filter 22 is located in the third opening 211 , and another portion is on the light shielding layer 21 .

[0228] Among the plurality of third openings 211, a portion of the third openings 211 are provided in one-to-one correspondence with the plurality of first openings 61, and the orthographic projections of the first openings 61 on the flat layer 50 are located within the range of the orthographic projections of the third openings 211 on the flat layer 50. Another portion of the third openings 211 are provided in one-to-one correspondence with the plurality of second openings 62, and the orthographic projections of the second openings 62 on the flat layer 50 are located within the range of the orthographic projections of the third openings 211 on the flat layer 50.

[0229] like Figure 25 As shown, the first dimming layer 23 includes a plurality of fourth openings 231, which are arranged in a one-to-one correspondence with the plurality of third openings 211. The orthographic projections of the third openings 211 on the substrate 30 are located within the orthographic projections of the fourth openings 231 on the substrate 30. Light emitted by the light-emitting device 10 passes through the first opening 61 or the second opening 62 and then exits through the fourth openings 231.

[0230] like Figure 26 As shown, the first dimming layer 23 includes a plurality of first dimming units 232. The plurality of first dimming units 232 are arranged in a one-to-one correspondence with the plurality of third openings 211. The orthographic projections of the third openings 211 on the substrate 30 are located within the orthographic projections of the first dimming units 232 on the substrate 30. Light emitted by the light-emitting device 10 passes through the first openings 61 or the second openings 62 and then exits through the first dimming units 232.

[0231] Therefore, the color filter layer can be used to adjust the brightness of light at a larger viewing angle emitted by different light-emitting devices 10, and the first dimming layer 23 and the second dimming layer 24 can be used to adjust the brightness of light at a smaller viewing angle emitted by different light-emitting devices 10, so that the brightness difference of light at the same viewing angle emitted by each light-emitting device 10 from the adjustment function layer is small, thereby effectively improving the color deviation phenomenon of the display panel 100.

[0232] In some other examples, such as Figure 27As shown, the adjustment function layer 20 includes a third dimming layer 25 and a color filter layer that are stacked.

[0233] The third dimming layer 25 includes a plurality of spaced-apart third dimming portions 251. An angle α3 between the sidewalls of the third dimming portions 251 and the plane of the planar layer 50 is an acute angle. For example, a cross-sectional view of the third dimming portion 251 along the thickness direction of the substrate 30 is a right trapezoid.

[0234] The color filter layer includes a light shielding layer 21 and a plurality of color filters 22 arranged at intervals.

[0235] The material and structure of the light shielding layer 21 may refer to the description in some of the above embodiments and will not be repeated here.

[0236] The light shielding layer 21 includes a plurality of third openings 211 corresponding to a plurality of third light modulating units 251. The third light modulating units 251 are located in the third openings 211, and gaps 212 exist between the sidewalls of the third light modulating units 251 and the sidewalls of the third openings 211.

[0237] For example, the center of the orthographic projection of the third light modulating portion 251 on the substrate 30 coincides with the center of the orthographic projection of the third opening 211 on the substrate 30. The orthographic projection of the gap 212 on the substrate 30 is in the shape of a ring.

[0238] For example, the thickness of the third light modulating unit 251 is greater than or equal to the thickness of the light shielding layer 21 .

[0239] The color filter 22 is at least located in the gap 212 and on a side of the third dimming unit 251 away from the substrate 30 .

[0240] For example, the color filter 22 fills the gap 212 and covers the third dimming unit 251 and the light shielding layer 21 .

[0241] One first opening 61 or one second opening 62 is disposed correspondingly to one third light modulating unit 251 and one third opening 211 .

[0242] The orthographic projection of the first opening 61 on the flat layer 50 is within the orthographic projection range of the third opening 211 on the flat layer 50 and within the orthographic projection range of the third dimming unit 251 on the flat layer 50. The refractive index of the color filter 22 is smaller than that of the third dimming unit 251.

[0243] As a result, the light emitted by the light-emitting portion 101 of the light-emitting device 10 is emitted after passing through the third dimming portion 251 and the third opening 211. Part of the light is incident on the side of the third dimming portion 251, and is refracted to the color filter layer on the side, and the emission direction tends to be perpendicular to the direction of the substrate 30, so that the light-emitting device 10 emits more light with a smaller viewing angle after passing through the adjustment functional layer 20, thereby improving the light extraction efficiency and brightness of the light-emitting device 10. The provision of the color filter layer can also improve the color purity of the emitted light. In addition, the above provision reduces the number of film layers in the display panel 100, which is beneficial to reducing the thickness of the display panel 100 and facilitating the thin and lightweight design of the display panel 100 and the display device 1000.

[0244] For example, Figure 12 and Figure 23 As shown, the display panel 100 further includes an encapsulation layer 70 located between the plurality of light-emitting devices 10 and the adjustment function layer 20 .

[0245] For example, the encapsulation layer 70 can be a thin film encapsulation layer, which can encapsulate the above-mentioned light-emitting device 10, so that the light-emitting device 10 is isolated from external water vapor, etc., thereby improving the luminous performance and luminous life of the light-emitting device 10, and avoiding the oxidation of the light-emitting device 10 by water vapor when water vapor invades.

[0246] The encapsulation layer 70 has a certain light transmittance, and light emitted by the light-emitting device 10 can be emitted through the encapsulation layer 70. The encapsulation layer 70 includes: an inorganic encapsulation layer and an organic encapsulation layer arranged in a stacked manner. The inorganic encapsulation layer 70 may include a first inorganic encapsulation layer and a second inorganic encapsulation layer. The organic encapsulation layer may be located between the first and second inorganic encapsulation layers.

[0247] For example, the inorganic encapsulation layer can be made of an inorganic material and can be formed using a vapor deposition process. The organic encapsulation layer can be made of an organic material and can be formed using an inkjet printing process. The inorganic encapsulation layer can be made of an OC (Optical Clear) adhesive.

[0248] It can be understood that the organic encapsulation layer is mainly used for planarization and stress relief, and the first inorganic encapsulation layer and the second inorganic encapsulation layer in the inorganic encapsulation layer are mainly used to block water and oxygen, and to wrap the organic encapsulation layer located between the first inorganic encapsulation layer and the second inorganic encapsulation layer.

[0249] In some embodiments, as Figure 12 and Figure 23 As shown, the display panel 100 further includes a touch layer 80 located between the plurality of light-emitting devices 10 and the adjustment function layer 20 .

[0250] The touch layer 80 is located between the encapsulation layer 70 and the adjustment function layer 20 .

[0251] The touch layer 80 includes a plurality of touch electrodes for implementing the touch function of the display panel 100 .

[0252] The touch layer 80 can be formed on the encapsulation layer 70 using a flexible layer on cell (FMLOC) process. This can reduce the thickness of the display panel 100 and the display device 1000, thereby facilitating a lightweight and thin design of the display panel 100 and the display device 1000.

[0253] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that a person skilled in the art can conceive within the technical scope disclosed in the present disclosure should be included within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A display panel, characterized in that: The display panel includes a plurality of light-emitting devices and an adjustment function layer located on the light-emitting side of the plurality of light-emitting devices; The plurality of light emitting devices have light emitting parts, and the light emitting parts are used to emit light; the adjustment function layer is used to converge the light emitted by each of the light emitting parts and then emit it; The light-emitting device includes a first light-emitting device and a second light-emitting device that respectively emit light of different colors; the area of ​​the orthographic projection of the light-emitting portion of the first light-emitting device on the adjustment function layer is smaller than the area of ​​the orthographic projection of the light-emitting portion of the second light-emitting device on the adjustment function layer; The first light-emitting device further has an adjustment portion, and the orthographic projection of the light-emitting portion of the first light-emitting device on the adjustment function layer surrounds the orthographic projection of the adjustment portion on the adjustment function layer; the adjustment portion does not emit light.

2. The display panel according to claim 1, wherein: The shape of the orthographic projection of the first light emitting device on the adjustment function layer is a centrosymmetric shape.

3. The display panel according to claim 1 or 2, wherein: In the same first light-emitting device, the shape of the outer contour of the orthographic projection of the light-emitting portion on the adjustment function layer is the same as the shape of the outer contour of the orthographic projection of the adjustment portion on the adjustment function layer.

4. The display panel according to claim 1, wherein: The orthographic projection of the adjustment portion on the adjustment function layer is a centrosymmetrical shape.

5. The display panel according to claim 4, wherein: The shape of the orthographic projection of the adjustment portion on the adjustment function layer includes a square or a circle.

6. The display panel according to claim 1, wherein: The center of the orthographic projection of the adjustment portion on the adjustment function layer coincides with the center of the orthographic projection of the light emitting portion on the adjustment function layer.

7. The display panel according to claim 1, wherein: The display panel includes a substrate and a planar layer stacked in sequence; the plurality of light-emitting devices are located between the planar layer and the adjustment function layer; The flat layer has a plurality of grooves extending along its thickness direction; the adjustment portion is located in the grooves, the light-emitting portion is located on a side of the flat layer away from the substrate, and the distance between the adjustment portion and the substrate is smaller than the distance between the light-emitting portion and the substrate.

8. The display panel according to claim 7, wherein: The depth of the groove is greater than or equal to the thickness of the adjusting portion.

9. The display panel according to claim 7 or 8, characterized in that: The light emitting device includes a first electrode, a light emitting layer, and a second electrode sequentially stacked on the planar layer; The first electrode of the first light-emitting device includes a disconnected first sub-portion and a disconnected second sub-portion; the first sub-portion is located in the groove and constitutes a part of the adjustment portion; the second sub-portion is located outside the groove and constitutes a part of the light-emitting portion.

10. The display panel according to claim 7, wherein: The display panel further includes a defining layer; the defining layer is located between the flat layer and the adjustment function layer; The defining layer includes a plurality of first openings and a plurality of second openings; the groove is connected to the first opening, and the orthographic projection of the groove on the substrate is located within the orthographic projection range of the first opening on the substrate; a portion of the first light-emitting device is located within the first opening and the corresponding groove; and a portion of the second light-emitting device is located within the second opening; The adjustment function layer includes a light shielding layer and a plurality of color filters; the light shielding layer includes a plurality of third openings, and the color filters are at least located in the third openings; An orthographic projection of one of the first openings on the substrate is located within a range of an orthographic projection of one of the third openings on the substrate.

11. The display panel according to claim 10, wherein: The first light emitting device includes a third light emitting device and a fourth light emitting device emitting light of different colors; The display panel includes a main display area and a sub-display area; the pixel density of the sub-display area is smaller than the pixel density of the main display area; The second light emitting device, the third light emitting device, and the fourth light emitting device are located in the auxiliary display area; The light-emitting device further includes: a fifth light-emitting device, a sixth light-emitting device, and a seventh light-emitting device located in the main display area; the color of the light emitted by the second light-emitting device is the same as the color of the light emitted by the sixth light-emitting device, the color of the light emitted by the third light-emitting device is the same as the color of the light emitted by the fifth light-emitting device, and the color of the light emitted by the fourth light-emitting device is the same as the color of the light emitted by the seventh light-emitting device; The plurality of light-emitting devices in the auxiliary display area include a plurality of first light-emitting device groups; the first light-emitting device group includes at least one adjacent second light-emitting device, at least one third light-emitting device and at least one fourth light-emitting device; The plurality of light-emitting devices in the main display area include a plurality of second light-emitting device groups; the second light-emitting device group includes at least one adjacent fifth light-emitting device, at least one sixth light-emitting device and at least one seventh light-emitting device; The ratio of the sum of the areas of the orthographic projections of the light-emitting portions of the third light-emitting devices in the same first light-emitting device group on the adjustment function layer, the sum of the areas of the orthographic projections of the light-emitting portions of the second light-emitting devices on the adjustment function layer, and the sum of the areas of the orthographic projections of the light-emitting portions of the fourth light-emitting devices on the adjustment function layer, to the sum of the areas of the orthographic projections of the light-emitting portions of the fifth light-emitting devices in the same second light-emitting device group on the adjustment function layer, the sum of the areas of the orthographic projections of the light-emitting portions of the sixth light-emitting devices on the adjustment function layer, and the sum of the areas of the orthographic projections of the light-emitting portions of the seventh light-emitting devices on the adjustment function layer, are equal.

12. The display panel according to claim 11, wherein: An arrangement density of the plurality of light-emitting devices in the first light-emitting device group is less than or equal to an arrangement density of the plurality of light-emitting devices in the second light-emitting device group.

13. The display panel according to claim 11 or 12, wherein: In the third light-emitting device, the area of ​​the light-emitting portion is equal to the area of ​​the adjustment portion; in the fourth light-emitting device, the area of ​​the light-emitting portion is equal to the area of ​​the adjustment portion.

14. The display panel according to claim 11, wherein: The ratio of the sum of the areas of the orthographic projections of the light-emitting parts of each of the third light-emitting devices in the same first light-emitting device group on the adjustment functional layer, the sum of the areas of the orthographic projections of the light-emitting parts of each of the second light-emitting devices on the adjustment functional layer, and the sum of the areas of the orthographic projections of the light-emitting parts of each of the fourth light-emitting devices on the adjustment functional layer is 1:2:1.

8.

15. The display panel according to claim 11, wherein: The plurality of first openings include a plurality of first sub-openings and a plurality of second sub-openings; a portion of the third light emitting device is located within the first sub-opening, and a portion of the fourth light emitting device is located within the second sub-opening; In the same first light-emitting device group, the ratio of the sum of the areas of the first sub-openings corresponding to each of the third light-emitting devices, the sum of the areas of the second openings corresponding to each of the second light-emitting devices, and the sum of the areas of the second sub-openings directly opposite each of the fourth light-emitting devices is 1:1:1.

8.

16. The display panel according to claim 11, wherein: The first light-emitting device group includes a second light-emitting device, a third light-emitting device and a fourth light-emitting device; the lines connecting the center of the second light-emitting device, the center of the third light-emitting device and the center of the fourth light-emitting device form a triangle; The second light-emitting device group includes a fifth light-emitting device, two sixth light-emitting devices and a seventh light-emitting device; a line connecting the centers of the fifth light-emitting device and the seventh light-emitting device intersects a line connecting the centers of the two sixth light-emitting devices.

17. The display panel according to claim 16, wherein: The area of ​​the orthographic projection of the light-emitting portion of the third light-emitting device on the adjustment function layer is equal to the area of ​​the orthographic projection of the light-emitting portion of the fifth light-emitting device on the adjustment function layer; The area of ​​the orthographic projection of the light-emitting portion of the fourth light-emitting device on the adjustment function layer is equal to the area of ​​the orthographic projection of the light-emitting portion of the seventh light-emitting device on the adjustment function layer; An area of ​​an orthographic projection of the light-emitting portion of the second light-emitting device on the adjustment function layer is twice an area of ​​an orthographic projection of the light-emitting portion of the sixth light-emitting device on the adjustment function layer.

18. The display panel according to claim 11, wherein: The second light emitting device emits green light, the third light emitting device emits red light, and the fourth light emitting device emits blue light.

19. The display panel according to claim 7, wherein: The first light-emitting device includes a third light-emitting device and a fourth light-emitting device emitting light of different colors; the plurality of light-emitting devices includes a plurality of third light-emitting device groups; the third light-emitting device group includes at least one second light-emitting device, at least one third light-emitting device and at least one fourth light-emitting device; The display panel further includes a defining layer; the defining layer is located between the flat layer and the adjustment function layer; The defining layer includes a plurality of first openings and a plurality of second openings; the groove is connected to the first openings, and the orthographic projection of the groove on the substrate is located within the orthographic projection range of the first opening on the substrate; The first opening includes a first sub-opening and a second sub-opening; a portion of the third light emitting device is located in the first sub-opening, and a portion of the fourth light emitting device is located in the second sub-opening; A portion of the second light emitting device is located in the second opening; In the same third light-emitting device group, the ratio of the sum of the areas of the first sub-openings corresponding to each of the third light-emitting devices, the sum of the areas of the second openings corresponding to each of the second light-emitting devices, and the sum of the areas of the second sub-openings directly opposite each of the fourth light-emitting devices is 1:1:

1.

20. The display panel according to claim 19, wherein In the same third light-emitting device group, the ratio of the sum of the areas of the orthographic projections of the light-emitting portions in at least one third light-emitting device on the adjustment functional layer, the sum of the areas of the orthographic projections of the light-emitting portions in at least one fourth light-emitting device on the adjustment functional layer, and the sum of the areas of the orthographic projections of the light-emitting portions in at least one second light-emitting device on the adjustment functional layer is 1:1:1.

8.

21. The display panel according to claim 19 or 20, characterized in that: The third light-emitting device group includes a first light-emitting device, a third light-emitting device and a second light-emitting device; the lines connecting the centers of the second light-emitting device, the third light-emitting device and the fourth light-emitting device form a triangle.

22. The display panel according to claim 19, wherein The adjustment function layer includes a first dimming layer and a second dimming layer which are stacked; The refractive index of the first dimming layer is smaller than the refractive index of the second dimming layer; the first dimming layer includes a plurality of fourth openings, and the angles between the sidewalls of the fourth openings and the plane where the planar layer is located are acute; a portion of the second dimming layer is located within the fourth openings, and another portion of the second dimming layer is located on a side of the first dimming layer away from the planar layer; The orthographic projection of the first opening on the flat layer is located within a range of the orthographic projection of the fourth opening on the flat layer.

23. The display panel according to claim 19, wherein: The adjustment function layer includes a first dimming layer and a second dimming layer which are stacked; The refractive index of the first dimming layer is greater than the refractive index of the second dimming layer; the first dimming layer includes a plurality of first dimming parts arranged at intervals, the angle between the side walls of the first dimming parts and the plane where the flat layer is located is an acute angle, and the second dimming layer covers the plurality of first dimming parts; the orthographic projection of the first opening on the flat layer is located within the range of the orthographic projection of the first dimming part on the flat layer.

24. The display panel according to claim 22 or 23, characterized in that: The adjustment function layer further includes: a color filter layer provided between the plurality of light emitting devices and the first dimming layer; The color filter layer includes a light-shielding layer and a plurality of color filters arranged at intervals; the light-shielding layer includes a plurality of third openings, and the color filters are at least located within the third openings; the orthographic projection of the first opening on the flat layer is located within the orthographic projection range of the third opening on the flat layer.

25. The display panel according to claim 19, wherein The adjustment function layer includes a third dimming layer and a color filter layer that are stacked; The third dimming layer includes a plurality of third dimming parts arranged at intervals; the angle between the sidewall of the third dimming part and the plane where the flat layer is located is an acute angle; The color filter layer includes a light-shielding layer and a plurality of color filters spaced apart from each other; the light-shielding layer includes a plurality of third openings, the third dimming portion is located within the third openings, and a gap exists between the sidewall of the third dimming portion and the sidewall of the third openings; the color filter is located at least within the gap and on a side of the third dimming portion away from the substrate; The orthographic projection of the first opening on the flat layer is located within the orthographic projection range of the third opening on the flat layer, and is also located within the orthographic projection range of the third dimming unit on the flat layer; the refractive index of the color filter is smaller than the refractive index of the third dimming unit.

26. The display panel according to claim 19, wherein: The second light emitting device emits blue light, the third light emitting device emits red light, and the fourth light emitting device emits green light.

27. A display device, characterized in that: The display device includes the display panel according to any one of claims 1 to 26, and an optical element located on a non-light-exiting side of a secondary display area of ​​the display panel.

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