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] This disclosure relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] Organic light-emitting diode (OLED) display technology is a technology that uses light-emitting materials to emit light when driven by an electric current to achieve display. OLED display devices have advantages such as being ultra-lightweight, ultra-thin, high-brightness, wide viewing angle, low voltage, low power consumption, fast response, high definition, shock resistance, flexibility, low cost, simple manufacturing process, use of fewer raw materials, high luminous efficiency, and wide temperature range. Summary of the Invention

[0003] On one hand, a display panel is provided, including a plurality of light-emitting devices and an adjustment functional layer located on the light-emitting side of the plurality of light-emitting devices. The plurality of light-emitting devices have light-emitting portions for emitting light. The adjustment functional layer is used to converge and emit the light emitted by each of the light-emitting portions. The light-emitting devices include a first light-emitting device and a second light-emitting device that emit light of different colors. The area of ​​the orthographic projection of the light-emitting portion of the first light-emitting device onto the adjustment functional layer is smaller than the area of ​​the orthographic projection of the light-emitting portion of the second light-emitting device onto the adjustment functional layer. The first light-emitting device also has an adjustment portion, the orthographic projection of the light-emitting portion of the first light-emitting device onto the adjustment functional layer surrounding the orthographic projection of the adjustment portion onto the adjustment functional layer. The adjustment portion does not emit light.

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

[0005] In some embodiments, the shape of the orthographic projection of the adjustment part onto the adjustment function layer is a centrally symmetrical shape.

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

[0007] In some embodiments, the center of the orthographic projection of the adjusting part onto the adjusting functional layer coincides with the center of the orthographic projection of the light-emitting part onto the adjusting functional layer.

[0008] In some embodiments, the display panel includes a substrate and a planarization layer stacked sequentially. The plurality of light-emitting devices are located between the planarization layer and the adjustment functional layer. The planarization layer has a plurality of grooves extending along its thickness direction. The adjustment portion is located within the grooves, the light-emitting portion is located on the side of the planarization 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.

[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 planarization layer. The first electrode of the first light-emitting device includes a first sub-part and a second sub-part that are disconnected. The first sub-part is located within the groove and forms part of the adjustment portion. The second sub-part is located outside the groove and forms part of the light-emitting portion.

[0011] In some embodiments, the display panel further includes a defining layer. The defining layer is located between the planarization layer and the adjustment functional layer. The defining layer includes a plurality of first openings and a plurality of second openings. The recess communicates with the first openings, and the orthographic projection of the recess onto the substrate lies within the orthographic projection range of the first opening onto the substrate. A portion of the first light-emitting device is located within the first opening and the corresponding recess. A portion of the second light-emitting device is located within the second opening. The adjustment functional 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 located at least within the third openings. The orthographic projection of one of the first openings onto the substrate lies within the orthographic projection range of one of the third openings onto 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 sub-display area. The pixel density of the sub-display area is less than the pixel density of the main display area. The second, third, and fourth light-emitting devices are located in the sub-display area. The light-emitting devices further include a fifth, sixth, and 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 multiple light-emitting devices in the sub-display area include multiple groups of first light-emitting devices. Each group of first light-emitting devices 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 multiple light-emitting devices in the main display area include multiple groups of second light-emitting devices. Each group of second light-emitting devices 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 parts of each third light-emitting device in the same first light-emitting device group, the sum of the areas of the orthographic projections of the light-emitting parts of each second light-emitting device in the same second light-emitting device group, and the sum of the areas of the orthographic projections of the light-emitting parts of each fourth light-emitting device in the same second light-emitting device group is equal to the ratio of the sum of the areas of the orthographic projections of the light-emitting parts of each fifth light-emitting device in the same second light-emitting device group, the sum of the areas of the orthographic projections of the light-emitting parts of each sixth light-emitting device in the same second light-emitting device group, and the sum of the areas of the orthographic projections of the light-emitting parts of each seventh light-emitting device in the same second light-emitting device group.

[0013] In some embodiments, the arrangement density of the plurality of light-emitting devices in the first light-emitting device group is less than or equal to the 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 adjusting portion. In the fourth light-emitting device, the area of ​​the light-emitting portion is equal to the area of ​​the adjusting portion.

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

[0016] In some embodiments, the plurality of first openings includes a plurality of first sub-openings and a plurality of second sub-openings. A portion of the third light-emitting device is located within a first sub-opening, and a portion of the fourth light-emitting device is located within a 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. The lines connecting the centers of the second, third, and fourth light-emitting devices 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. The line connecting the center of the fifth and seventh light-emitting devices intersects the 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 onto the adjustment functional layer is equal to the area of ​​the orthographic projection of the light-emitting portion of the fifth light-emitting device onto the adjustment functional layer. The area of ​​the orthographic projection of the light-emitting portion of the fourth light-emitting device onto the adjustment functional layer is equal to the area of ​​the orthographic projection of the light-emitting portion of the seventh light-emitting device onto the adjustment functional layer. The area of ​​the orthographic projection of the light-emitting portion of the second light-emitting device onto the adjustment functional layer is twice the area of ​​the orthographic projection of the light-emitting portion of the sixth light-emitting device onto the adjustment functional 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 planarization 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 openings, and the orthographic projection of the groove on the substrate is 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 within the first sub-opening, and a portion of the fourth light-emitting device is located within the second sub-opening. A portion of the second light-emitting device is located within 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 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 group of third light-emitting devices, the ratio of the sum of the areas of the orthogonal projections of the light-emitting parts of the at least one third light-emitting device onto the adjustment function layer, the sum of the areas of the orthogonal projections of the light-emitting parts of the at least one fourth light-emitting device onto the adjustment function layer, and the sum of the areas of the orthogonal projections of the light-emitting parts of the at least one second light-emitting device onto the adjustment function 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. The line 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 forms a triangle.

[0023] In some embodiments, the adjustment function layer includes a first dimming layer and a second dimming layer stacked together. The refractive index of the first dimming layer is less than that of the second dimming layer. The first dimming layer includes a plurality of fourth openings, the sidewalls of which form acute angles with the plane of the planarization 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 the side of the first dimming layer away from the planarization layer. The orthographic projection of the first opening onto the planarization layer lies within the orthographic projection range of the fourth opening onto the planarization layer.

[0024] In some embodiments, the adjustment function layer includes a first dimming layer and a second dimming layer stacked together. The refractive index of the first dimming layer is greater than that of the second dimming layer. The first dimming layer includes a plurality of spaced-apart first dimming sections, the sidewalls of the first dimming sections forming an acute angle with the plane of the planarization layer, and the second dimming layer covers the plurality of first dimming sections. The orthographic projection of the first opening onto the planarization layer is located within the orthographic projection range of the first dimming section onto the planarization 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-apart 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 projection of the first opening onto the planarization layer is located within the orthographic projection range of the third opening onto the planarization layer.

[0026] In some embodiments, the adjustment functional layer includes a third dimming layer and a color filter layer stacked together. The third dimming layer includes a plurality of spaced-apart third dimming portions. The angle between the sidewall of the third dimming portion and the plane of the planarization layer is an acute angle. The color filter layer includes a light-shielding layer and a plurality of spaced-apart color filters. The light-shielding layer includes a plurality of third openings, the third dimming portions are located within the third openings, and there is a gap between the sidewall of the third dimming portion and the sidewall of the third opening. The color filters are located at least within the gaps and on the side of the third dimming portion away from the substrate. The orthographic projection of the first opening on the planarization layer is within the orthographic projection range of the third opening on the planarization layer, and is also within the orthographic projection range of the third dimming portion on the planarization layer. The refractive index of the color filter is less than the refractive index of the third dimming portion.

[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 sub-display area of ​​the display panel. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are merely drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. Furthermore, the drawings described below can be considered as schematic diagrams and are not intended to limit the actual dimensions, etc., of the products involved in the embodiments of this disclosure.

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

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

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

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

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

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

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

[0037] Figure 8 According to Figure 7 A magnified view of the local structure of the CC' region;

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

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

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

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

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

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

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

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

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

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

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

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

[0050] Figure 21 This 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 this disclosure;

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

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

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

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

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

[0056] Figure 27 This is a structural diagram of yet another display device according to some embodiments of the present disclosure. Detailed Implementation

[0057] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0058] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0059] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" 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,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0062] As used herein, "perpendicular" and "equal" include the described situation and situations that are similar to the described situation, within an acceptable deviation range, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a 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 could be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, where the acceptable deviation range for approximate equality could be, for example, a difference between the two equalities less than or equal to 5% of either one.

[0063] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on the other layer or substrate, or that there is an intermediate layer between the layer or element and the other layer or substrate.

[0064] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and the area of ​​regions are enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched areas shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the areas of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0065] like Figure 1 As shown, some embodiments of this disclosure provide a display device 1000. This display device 1000 can be any display device 1000 that displays either moving (e.g., video) or stationary (e.g., still images), and whether it is text or images. More specifically, the display device 1000 of the described embodiments is contemplated for implementation 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, camcorders, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, cockpit controllers and / or displays, displays of camera views (e.g., displays of rearview cameras in vehicles), electronic photographs, electronic billboards or signs, projectors, architectural structures, packaging and aesthetic structures (e.g., displays of 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 can 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, protecting it from external impacts and other damage. The cover plate 200 can be made of glass.

[0068] In some examples, such as Figure 3 As shown, the display device 1000 may also include optical elements 300, such as an under-display camera, an under-display fingerprint sensor, an infrared sensor, etc., enabling the display device 1000 to perform various functions such as taking photos, recording videos, and fingerprint recognition.

[0069] In some embodiments, such as Figure 4 As shown, the display panel 100 in the above-mentioned 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 of the light-emitting device 10 that emits light.

[0071] like Figure 8 As shown, multiple light-emitting devices 10 have light-emitting portions 101 for emitting light. The light-emitting portions 101 have a certain thickness. For example, the multiple light-emitting portions 101 can emit light of different colors. For example, the different colors of light can include red light, green light, and blue light. The different colors of light work together to enable 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] Considering factors such as luminescence lifetime, the projected area of ​​the light-emitting part of light-emitting devices that emit different colors of light is different.

[0074] For example, the area of ​​the orthographic projection of the light-emitting portion 101 of the first light-emitting device 11 onto 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 onto the adjustment function layer 20. Therefore, the area of ​​the top view of the light-emitting portion 101 of the first light-emitting device 11 is smaller than the area of ​​the top view of the light-emitting portion 101 of the second light-emitting device 12.

[0075] The aforementioned adjustment layer 20 is used to converge and emit the light emitted by each light-emitting part 101. Thus, the adjustment layer 20 can improve the light emission efficiency of the light-emitting device 10, adjust the light emission angle of the light-emitting device 10, and thereby improve the brightness of the display panel 100.

[0076] For example, such as Figure 4 As shown, the adjustment function layer 20 can adjust a portion of the light emitted by the light source 101 with a large viewing angle, such as by blocking, reflecting or refracting it, so that the light source is emitted in a direction with a small viewing angle (approaching the positive viewing angle), thereby achieving the convergence of light.

[0077] In one implementation, the adjustment function layer in the display panel includes a light-shielding layer 21' (here, the light-shielding function layer 20' is described as having a light-blocking function). The light-shielding layer 21' has multiple openings 211', each opening 211' corresponding to a 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 its corresponding opening 211' is equal. (See reference) Figure 5 Light emitted from the edge portion of the light-emitting part 101' of the display panel 100', which has a larger viewing angle, 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 its corresponding light-emitting part 101' is equal (which can be understood as...), Figure 5The explanation is based on the example where the distance between the two edge portions on the left and right sides of the light-emitting part 101' and the sidewall of the adjacent opening 211' in the first direction X is equal, and this distance is S4 / 2. The difference between the size S3 of the opening 211' and the size S1 of the corresponding light-emitting part 101' is S4. Of course, the distance between the two edge portions on the left and right sides of the light-emitting part 101' and the sidewall of the adjacent opening 211' in the first direction X may not be equal. In the case where the portion of the light-shielding layer 21' located around each opening 211' blocks the edge portion of equal size S2, the proportion of the edge portion size S2 to the size S1 of the light-emitting part will also be unequal. Specifically, the larger the size S1 of the light-emitting part 101' (which can be the size of the orthographic projection of the light-emitting part 101' onto the adjustment function layer), the smaller the proportion of the size S2 of the edge portion to the size S1 of the light-emitting part 101', and the smaller the blocking effect of the adjustment function layer 20' on the light emitted by the light-emitting part 101'. Since the sizes of the light-emitting parts 101' of the light-emitting devices 10' emitting different colors of light in the display panel 100' are different, the proportion of the light that is blocked in the light emitted by each light-emitting part 101' is different, which in turn causes different losses of the light emitted by different light-emitting parts 101' after passing through the adjustment function layer 20'. This results in a large difference in brightness of the different colors of light emitted by each light-emitting device 10' at the same viewing angle (mainly at a wide viewing angle), causing a serious color shift phenomenon when displaying white light on the display panel at a wide viewing angle.

[0078] Figure 5 The dashed line with an arrow indicates the direction in which the light ray is emitted.

[0079] Based on this, in the embodiments of this disclosure, such as Figures 6-8 As shown, the first light-emitting device 11 also has an adjustment section 102.

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

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

[0082] Since the projected area of ​​the light-emitting part 101 of the first light-emitting device 11 is relatively small, the above arrangement allows the outer contour of the projected area of ​​the light-emitting part 101 of the first light-emitting device 11 to be larger while keeping the projected area unchanged. This reduces the difference between the outer contour of the projected area of ​​the light-emitting part 101 of the first light-emitting device 11 and the outer contour of the projected area of ​​the light-emitting part 101 of the second light-emitting device 12. This makes the difference between the blocking effect of the adjustment function layer 20 on the light emitted by the light-emitting part 101 of the first light-emitting device 11 and the blocking effect on the light emitted by the light-emitting part 101 of the second light-emitting device 12 smaller or more consistent. This makes the loss of light emitted by the two light-emitting parts 101 at a larger viewing angle after passing through the adjustment function layer 20 more consistent, thereby making the brightness of the first light-emitting device 11 and the second light-emitting device 12 more consistent at the same larger viewing angle. When the light emitted by the first light-emitting device 11 and the light emitted by the second light-emitting device 12 are combined to form light of other colors, such as white light, the resulting white light is protected from severe color shift, thereby alleviating the color shift phenomenon of the display panel 100.

[0083] In some embodiments, such 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 part 101 on the adjustment function layer 20 is the same as the shape of the outer contour of the orthographic projection of the adjustment part 102 on the adjustment function layer 20.

[0084] Since the orthographic projection of the light-emitting part 101 of the first light-emitting device 11 on the adjustment function layer 20 surrounds the orthographic projection of the adjustment part 102 on the adjustment function layer 20, the above arrangement can make the light emitted by the light-emitting part 101 and incident on the part of the adjustment function layer 20 that is directly opposite to the adjustment part 102 more uniform, which is beneficial to improve the uniformity of light output after the light exits through the adjustment function layer 20 and alleviate the color shift phenomenon of the display panel 100.

[0085] In some embodiments, such as Figures 9-11 As shown, the shape of the orthographic projection of the adjustment unit 102 onto the adjustment function layer 20 is a centrally symmetrical shape.

[0086] For example, the shape of the orthographic projection of the light-emitting part 101 onto the adjustment function layer 20 can also be a centrally symmetrical shape.

[0087] This makes the distance from each point on the outer contour line of the light-emitting part 101 to the center of the adjustment part 102 tend to be equal, so that the amount of light blocked by the adjustment function layer 20 under different viewing angles (different viewing angles here can be different large viewing angles) emitted by the light-emitting part 101 tends to be consistent, and the amount of light emitted after passing through the adjustment function layer 20 under different viewing angles tends to be consistent. This helps to improve the light emission uniformity of the first light-emitting device 11, improve the brightness difference problem of the light emitted by the first light-emitting device 11 under different viewing angles, and alleviate the color shift phenomenon of the display panel 100. Moreover, it allows the light emitted by the light-emitting part 101 to be incident on the part of the adjustment function layer 20 that is directly opposite the light-emitting part 101 and the adjustment part 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, such as Figures 9-11 As shown, the shape of the orthographic projection of the adjustment unit 102 onto the adjustment function layer 20 includes a square or a circle.

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

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

[0091] By adopting the above-mentioned configuration, the light emission uniformity of the first light-emitting device 11 can be improved, the brightness difference of light emitted from the first light-emitting device 11 at different viewing angles can be reduced, the difference in light loss between the light emitted from the first light-emitting device 11 and the light emitted from the second light-emitting device 12 after passing through the adjustment functional layer 20 can be reduced, the color shift phenomenon of the display panel 100 can be improved, and the display effect of the display panel 100 can be enhanced.

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

[0093] Therefore, the distance from each point on the outer contour line of the light-emitting part 101 to the center of the adjustment part 102 can be made to be equal, ensuring the uniformity of the output brightness of light emitted from different angles by the first light-emitting part 101 after passing through the adjustment functional layer 20, and alleviating the color shift phenomenon of the display panel 100.

[0094] In some embodiments, such as Figure 7As shown, the display panel 100 includes a substrate 30, a pixel circuit layer 40, and a planarization layer 50 stacked sequentially. Figure 6 As shown, multiple light-emitting devices 10 are located between the planarization layer 50 and the adjustment function layer 20.

[0095] The types of substrate 30 mentioned above include various types, and can be selected and set according to actual needs.

[0096] For example, the substrate 30 described above can be a rigid substrate. This rigid substrate 30 can be a glass substrate or a PMMA (Polymethylmethacrylate) substrate, etc.

[0097] For example, the substrate 30 described above can be a flexible substrate 30. Specifically, the flexible substrate 30 can be a PET (Polyethylene terephthalate) substrate.

[0098] PEN (Polyethylene diphthalate) or PI (Polyimide) substrates, etc. In this case, the aforementioned display panel 100 can, for example, achieve a flexible display.

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

[0100] When the substrate 30 is a composite structure, the substrate 30 may include a support layer and a buffer layer stacked sequentially. The material of the support layer may be glass, and the material of the buffer layer may be PI, etc.

[0101] For example, 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 / 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 can be disposed between the semiconductor layer Poly and the first gate conductive layer GT1, a second gate insulating layer GI2 can be disposed between the first gate conductive layer GT1 and the second gate conductive layer GT2, and an interlayer dielectric layer ILD can be disposed between the second gate conductive layer GT2 and the first source / 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 can be silicon oxide, silicon nitride, silicon oxynitride, etc.

[0104] For example, the material of the semiconductor layer Poly may include amorphous silicon, monocrystalline silicon, polycrystalline silicon, or metal oxide semiconductor materials. For example, the first gate conductive layer GT1, the second gate conductive layer GT2, and the first source / drain conductive layer SD1 are all 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 / drain conductive layer SD1 can be metallic materials, such as one or more combinations 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 onto the substrate 30 overlaps with the orthographic projection of the first gate conductive layer GT1 onto the substrate. After the first gate conductive layer GT1 is formed on the side of the semiconductor layer Poly away from the substrate, it can be used as a mask to dope the semiconductor layer Poly. This results in the portion of the semiconductor layer Poly covered by the first gate conductive layer GT1 forming 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 forming a conductor, which can serve as the first or second electrode of each transistor. The overlapping portion of the first gate conductive layer GT1 and the semiconductor layer Poly forms the gate pattern (i.e., the gate) of each transistor.

[0107] A pixel circuit is composed of multiple transistors and at least one capacitor, and the pixel circuit layer includes multiple pixel circuits. The aforementioned transistors can be thin-film transistors (TFTs). Thin-film transistors include dual-gate transistors and single-gate transistors.

[0108] In some examples, the material of the aforementioned planarization layer 50 can be an insulating material, for example, an organic material such as polyimide.

[0109] For example, such as Figure 7 As shown, the planarization layer 50 has a plurality of grooves 51 extending along its thickness direction. The plurality of grooves 51 are spaced apart, with one first light-emitting device 11 corresponding to one groove 51.

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

[0111] For example, the thickness of the adjustment part 102 is equal to or approximately equal to the thickness of the light-emitting part 101.

[0112] Since the adjusting part 102 is located within the groove 51, the distance between the adjusting part 102 and the substrate 30 is smaller than the distance between the light-emitting part 101 and the substrate 30. There is a step difference between the surface of the adjusting part 102 away from the substrate 30 and the surface of the light-emitting part 101 away from the substrate 30. This allows the side surface of the adjusting part 102 along the thickness direction to be at least partially separated from the side surface of the light-emitting part 101 along the thickness direction, which helps to ensure that the adjusting part 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 part 102.

[0114] Therefore, the adjustment part 102 is located entirely within the groove 51, and the surface of the adjustment part 102 away from the substrate 30 is lower than the surface of the planarization layer 50 away from the substrate 30, or the surface of the adjustment part 102 away from the substrate 30 is flush with the surface of the planarization layer 50 away from the substrate 30. This allows the adjustment part 102 to be disconnected from the light-emitting part 101, making the adjustment part 102 and the light-emitting part 101 insulated from each other. This ensures that the adjustment part 102 does not participate in the light emission of the light-emitting device, so that only the light-emitting part 101 of the first light-emitting device 11 emits light. This allows the adjustment part 102 to increase the outer contour size of the orthographic projection of the light-emitting part 101, while keeping the light-emitting area of ​​the light-emitting part 101 unchanged. This makes the light emitted by the light-emitting part 101 of the first light-emitting device 11 and the light emitted by the light-emitting part 101 of the second light-emitting device 12 more consistent in terms of the blocking effect of the adjustment function layer 20, thereby alleviating the color shift phenomenon of the display panel 100.

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

[0116] For example, the first electrode 1001 can be one of the anode and the cathode, and the second electrode 1003 can be the other of the anode and the cathode. The following explanation uses the example of the first electrode 1001 being the anode and the second electrode 1003 being the cathode.

[0117] For example, such as Figure 7 and Figure 8 As shown, the first electrode 1001 can be connected to the transistor TFT in the pixel circuit to receive electrical signals 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 signals and the common voltage.

[0118] Understandable, Figure 7 It can be Figure 9 A sectional view of the structure cut along the DD' direction, or... Figure 10 Cross-sectional view of the structure along the 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-part 1001A and a second sub-part 1001B. The first sub-part 1001A is located inside the groove 51 and constitutes part of the adjustment part 102. The second sub-part 1001B is located outside the groove 51 and constitutes part of the light-emitting part 101.

[0120] For example, the second sub-part 1001B is connected to the pixel circuit and receives electrical signals from the pixel circuit. Since the second sub-part 1001B is part of the light-emitting part 101 and the first sub-part 1001A is part of the adjustment part 102, the orthographic projection of the second sub-part 1001B surrounds the first sub-part 1001A. The first sub-part 1001A is disconnected from the second sub-part 1001B, and the second sub-part 1001B cannot receive electrical signals from the pixel circuit. Therefore, it cannot provide electrical signals to the portion of the light-emitting layer 1002 that is directly opposite the second sub-part 1001B, thereby 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 directly opposite the groove 51 and the portion located on the planarization layer 50 can be disconnected or connected to each other. Similarly, the portion of the second electrode 1003 directly opposite the groove 51 and the portion located on the planarization layer 50 can be disconnected or connected to each other.

[0122] In some other examples, the depth of the groove 51 is greater than or equal to the thickness of the first electrode 1001. This ensures that the first sub-part 1001A and the second sub-part 1001B are disconnected, and that the adjustment part 102 does not emit light.

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

[0124] For example, the orthographic projection of the defining layer 60 onto 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, a light-emitting device 10 is configured to correspond to a first opening 61 or a second opening 62.

[0126] For example, such as Figure 13As shown, a portion of the second light-emitting device 12 is located within the second opening 62, with one second light-emitting device 12 corresponding to one second opening 62. The first electrode 1001 of the second light-emitting device 12 is located between the planarization layer 50 and the defining layer 60, and at least a portion of the first electrode 1001 is 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, and another portion overlaps on the defining layer 60. The second electrodes 1003 of each light-emitting device 10 are interconnected, forming an integral structure. Along the thickness direction of the substrate, the second electrode 1003 of the second light-emitting device 12 covers its light-emitting layer 1002.

[0127] For example, such as Figure 8 As shown, a first light-emitting device 11 is correspondingly disposed with a first opening 61. A groove 51 communicates with the first opening 61, and the orthographic projection of the groove 51 on the substrate 30 is located within the orthographic projection range 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, the first sub-part 1001A of the first electrode 1001 of the first light-emitting device 11 is located within the groove 51, and the second sub-part 1001B of the first electrode 1001 is located between the planarization layer 50 and the defining layer 60, with at least a portion of the second sub-part 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 sub-part 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 part 101 of the light-emitting device 10 is the part of the light-emitting device 10 that is directly opposite to the first opening 61 or the second opening 62 (the part of the light-emitting device that is directly opposite to the first opening 61 does not include the part of the light-emitting device that is directly opposite to the groove 51). The adjustment part 102 of the first light-emitting device 11 is the part of the first light-emitting device 11 that is directly opposite to the groove 51.

[0129] There are various ways to adjust the structure of the functional layer 20, and the appropriate settings can be selected according to the actual situation. The embodiments disclosed herein do not impose any restrictions on this.

[0130] In some embodiments, such as Figure 12 As shown, the aforementioned adjustment function layer 20 can be a color filter layer, and the adjustment function layer 20 includes a light-shielding layer 21 and multiple color filters 22.

[0131] For example, the light-shielding layer 21 can be a black matrix. The material of the black matrix includes opaque materials. The light-shielding layer 21 includes a plurality of third openings 211. The top view shape of the light-shielding layer 21 can be approximately a mesh structure, with the third openings 211 forming the mesh openings of the mesh structure.

[0132] The color filter 22 is located at least within the third opening 211. For example, the color filter 22 is located within the third opening 211. Or, a portion of the color filter 22 is located within 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] Different colored light-emitting devices 10 can be configured to correspond to different types of color filters 22. The color filter 22 can adjust the light emitted by the light-emitting device 10, so that the color purity and color gamut of the light emitted through the color filter 22 are higher, thereby improving the display effect of the display panel 100.

[0135] The display panel 100, which includes the color filter 22, can adopt a COE (CF On Encapsulation) structure, which gives the display panel 100 the advantages of high contrast, low power consumption and wide color gamut, and also makes the display panel 100 thinner, which is conducive to realizing the thin and light design of the display panel 100.

[0136] For example, such as Figure 12 As shown, among the multiple third openings 211, one of the third openings 211 is correspondingly set with a first opening 61, and the orthographic projection of the first opening 61 on the substrate 30 is located within the orthographic projection range of the third opening 211 on the substrate 30.

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

[0138] Therefore, the light emitted by the first light-emitting device 11 can be emitted through the third opening 211, resulting in a larger light output from the first light-emitting device 11. Furthermore, the light-shielding layer 21 can prevent light mixing between the light emitted by the first light-emitting device 11 and the light emitted by other adjacent light-emitting devices, thus 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 incoming light from the outside, improving the reflection hue problem in the off-screen state.

[0139] For example, among a plurality of third openings 211, one of the third openings 211 is configured to correspond to a second opening 62, and the orthogonal projection of the second opening 62 on the substrate 30 is located within the orthogonal projection range of the third opening 211 on the substrate 30.

[0140] Therefore, the light emitted by the second light-emitting device 12 can exit through the third opening 211, resulting in a larger light output from the second light-emitting device 12. Furthermore, the light-shielding layer 21 can prevent light mixing between the light emitted by the second light-emitting device 12 and other light sources, thus 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 incoming light from the outside, improving the reflection hue problem in the off-screen 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 the area of ​​the display panel 100 used to display images.

[0142] The shape of display area A can be a rectangle or a rounded rectangle, etc. A rounded rectangle refers to a rectangle whose four corners are rounded.

[0143] For example, the above display area A includes a main display area A1 and a secondary display area A2.

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

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

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

[0147] For example, if the shape of the display area A is rectangular, 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 aforementioned display panel 100, the portions located in the main display area A1 and the secondary display area A2 can both be used for image display.

[0149] The pixel density of the secondary display area A2 is less than that of the primary display area A1. Therefore, the light transmittance of the secondary display area A2 is greater than that of the primary display area A1.

[0150] For example, the pixel density of the sub-display area A2 is equal to the pixel density of the main display area A1, and the light transmittance of the sub-display area A2 is greater than that of the main display area A1.

[0151] As can be seen from the above, the display device 1000 may also include an optical element 300, which is located in the sub-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 where an image can be displayed. 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 aforementioned optical element 300, external light needs to pass through the sub-display area A2 to illuminate the optical element 300 for it to activate its corresponding functions. External light can enter the optical element 300 through the sub-display area A2, which has a higher light transmittance, resulting in a larger amount of light received by the optical element 300. This optimizes the performance of the optical element 300, for example, improving the accuracy of sensor recognition or enhancing the image quality of a camera. The sensor can be a fingerprint sensor or an infrared sensor.

[0154] The embodiments disclosed herein use an optical element 300 as an example, which is a camera.

[0155] For example, during camera operation, ambient light can pass through the display panel and reach the secondary display area A2. The camera can then capture this light to perform functions such as taking photos, recording videos, or acquiring signals. For instance, when the camera is working (e.g., taking a selfie), the secondary display area A2 can display a black screen, while the main display area A1 displays the selfie, clearly showing the camera's location. Alternatively, both the secondary display area A2 and the main display area A1 can display the selfie, without showing the camera's location.

[0156] For example, the portions of the display panel located in the sub-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 an image.

[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 sub-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 each emit light of different colors.

[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 light-emitting device 10 in the main display area A1 emits the same type of color as the light-emitting device 10 in 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 brightness, the above arrangement helps to reduce the difference in displayed colors between the main display area A1 and the sub-display area A2, and improves the display uniformity of the display panel 100.

[0161] For example, 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, such as Figures 15-18 As shown, the plurality of light-emitting devices 10 in the sub-display area A2 includes a plurality of first light-emitting device groups 110. Each first light-emitting device group 110 includes at least one adjacent second light-emitting device 12, at least one third light-emitting device 13, and at least one fourth light-emitting device 14. The plurality of light-emitting devices 10 in the main display area A1 includes a plurality of second light-emitting device groups 120. Each second light-emitting device group 120 includes at least one adjacent fifth light-emitting device 15, at least one sixth light-emitting device 16, and at least one seventh light-emitting device 17.

[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 unequal to the number of sixth light-emitting devices 16 included in the second light-emitting device group 120. Similarly, the number of third light-emitting devices 13 included in the first light-emitting device group 110 may be equal to or unequal to the number of fifth light-emitting devices 15 included in the second light-emitting device group 120. Likewise, the number of fourth light-emitting devices 14 included in the first light-emitting device group 110 may be equal to or unequal to 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 parts 101 of each third light-emitting device 13 in the same first light-emitting device group 110 onto the adjustment function layer 20, the sum of the areas of the orthographic projections of the light-emitting parts 101 of each second light-emitting device 12 onto the adjustment function layer 20, and the sum of the areas of the orthographic projections of the light-emitting parts 101 of each fourth light-emitting device 14 onto the adjustment function layer 20 is equal to the ratio of the sum of the areas of the orthographic projections of the light-emitting parts 101 of each fifth light-emitting device 15, the sum of the areas of the orthographic projections of the light-emitting parts 101 of each sixth light-emitting device 16 onto the adjustment function layer 20, and the sum of the areas of the orthographic projections of the light-emitting parts 101 of each seventh light-emitting device 17 onto the adjustment function layer 20 in the same second light-emitting device group 120.

[0165] In other words, the ratio between the total area of ​​the light-emitting part 101 emitting red light, the total area of ​​the light-emitting part 101 emitting green light, and the total area of ​​the light-emitting part 101 emitting blue light in the same first light-emitting device group 110 is equal to the ratio between the total area of ​​the light-emitting part 101 emitting red light, the total area of ​​the light-emitting part 101 emitting green light, and the total area of ​​the light-emitting part 101 emitting blue light in the same second light-emitting device group 120. This allows the colors synthesized by the light emitted by the first light-emitting device group 110 and the second light-emitting device group 120 to have similar or identical color gamut ranges, thereby helping to reduce the differences between the images displayed in 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 multiple ways to set the pixel density of the secondary display area A2 to be less than that of the main display area A1, and you can choose to set it according to your actual needs.

[0167] In some examples, such as Figures 15-18 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 multiple light-emitting devices 10 in the first light-emitting device group 110 is equal to the arrangement density of multiple 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 sub-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 sub-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, such as Figure 16 and Figure 18 As shown, the arrangement density of the multiple light-emitting devices 10 in the first light-emitting device group 110 is less than the arrangement density of the multiple light-emitting devices 10 in the second light-emitting device group 120. The spacing between each light-emitting device 10 in the first light-emitting device group 110 is greater than the spacing between each light-emitting device 10 in the second light-emitting device group 120.

[0170] It is understandable that the pixel density of the sub-display area A2 is equal to or approximately equal to the arrangement density of the multiple light-emitting devices 10 in the sub-display area A2. The pixel density of the main display area A1 is equal to or approximately equal to the arrangement density of the multiple light-emitting devices 10 in the main display area A1.

[0171] Therefore, it can be ensured that the pixel density of the sub-display area A2 is less than that of the main display area A1, so that the light transmittance of the sub-display area A2 is greater than that of the main display area A1, which is conducive to increasing the light intake of the optical element 300 and improving 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 part 101 is equal to the area of ​​the adjustment part 102. In the fourth light-emitting device 14, the area of ​​the light-emitting part 101 is equal to the area of ​​the adjustment part 102.

[0173] The area of ​​the light-emitting part 101 here refers to the area of ​​the orthogonal projection of the light-emitting part 101 onto the substrate 30. The area of ​​the adjusting part 102 refers to the area of ​​the orthogonal projection of the adjusting part 102 onto the substrate 30.

[0174] Therefore, the dimensions of the outer contour of the orthographic projection of the light-emitting part 101 in the third light-emitting device 13, the outer contour of the orthographic projection of the light-emitting part 101 in the fourth light-emitting device 14, and the orthographic projection of the light-emitting part 101 in the second light-emitting device 12 can be made equal. This makes the blocking effect of the adjustment function layer 20 on the light emitted by the third light-emitting device 13, the fourth light-emitting device 14, and the second light-emitting device 12 more consistent. As a result, the light loss emitted by 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 function layer 20 tends to be consistent, and the brightness of the light emitted by each light-emitting device 10 after passing through the adjustment function layer 20 is similar at the same large viewing angle. This alleviates the color shift phenomenon of the image displayed in the sub-display area A2 and reduces the color shift difference between the image displayed in the sub-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 light-emitting portions 101 of each third light-emitting device 13 in the same first light-emitting device group 110 projected onto the adjustment function layer 20, the sum of the areas of the light-emitting portions 101 of each second light-emitting device 12 projected onto the adjustment function layer 20, and the sum of the areas of the light-emitting portions 101 of each fourth light-emitting device 14 projected onto the adjustment function layer 20 is 1:2:1.8.

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

[0177] Therefore, the color gamut of the light emitted by the first light-emitting device group 110 can be similar to or equal to the color gamut of the light emitted by the second light-emitting device group 120, which helps to reduce the display difference between the main display area A1 and the sub-display area A2. It also makes the luminous lifespan of the light-emitting devices 10 emitting different colors of light in the main display area A1 and the sub-display area A2 more consistent, and makes the luminous lifespan of the light-emitting devices 10 emitting different colors of light in the display panel 100 more consistent, 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 within the first sub-opening 611, and a portion of the fourth light-emitting device 14 is located within 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] Therefore, it can be ensured that the light-shielding layer 21 in the sub-display area A2 has a roughly the same blocking effect on the different colors of light 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 light-shielding layer 21 tends to be consistent, and the brightness of the different colors of light emitted from the light-shielding layer 21 is similar at the same large viewing angle. Thus, the brightness of the different colors of light emitted from the sub-display area A2 in the display panel 100 tends to be consistent at the same large viewing angle, thereby alleviating the color shift phenomenon in 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 a 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. Within the same group of second light-emitting devices 120, the ratio of the total area of ​​the second openings 62 corresponding to the various light-emitting devices 10 emitting red light (i.e., the total area of ​​the second openings 62 corresponding to the various fifth light-emitting devices 15), the total area of ​​the second openings 62 corresponding to the various light-emitting devices 10 emitting green light (i.e., the total area of ​​the second openings 62 corresponding to the various sixth light-emitting devices 16), and the total area of ​​the second openings 62 corresponding to the various light-emitting devices 10 emitting blue light (i.e., the total area of ​​the second openings 62 corresponding to the various seventh light-emitting devices 17) is also 1:1:1.8.

[0182] This makes the brightness range of different colors of light emitted by the main display area A1 and the sub-display area A2 of the display panel 100 more consistent, and makes the color deviation of the main display area A1 and the sub-display area A2 more consistent (for example, the images displayed by the main display area A1 and the sub-display area A2 are both greenish), 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 center of the second light-emitting device 12, the center of the third light-emitting device 13, and the center of the fourth light-emitting device 14 form a triangle.

[0184] In the sub-display area A2, multiple first light-emitting device groups 110 are arranged in an array.

[0185] The arrangement of multiple light-emitting devices 10 in the sub-display area A2 can be referred to as Real RGB arrangement or 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 center of the fifth light-emitting device 15 and the center of the seventh light-emitting device 17 intersects with 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 configuration, the jaggedness 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 images displayed in the sub-display area A2 and the images displayed in the main display area A1 can be reduced, the uniformity of the images displayed on 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 part 101 in the third light-emitting device 13 onto the adjustment function layer 20 is equal to the area of ​​the orthographic projection of the light-emitting part 101 in the fifth light-emitting device 15 onto the adjustment function layer 20. The area of ​​the orthographic projection of the light-emitting part 101 in the fourth light-emitting device 14 onto the adjustment function layer 20 is equal to the area of ​​the orthographic projection of the light-emitting part 101 in the seventh light-emitting device 17 onto the adjustment function layer 20. The area of ​​the orthographic projection of the light-emitting part 101 in the second light-emitting device 12 onto the adjustment function layer 20 is twice the area of ​​the orthographic projection of the light-emitting part 101 in the sixth light-emitting device 16 onto the adjustment function layer 20.

[0190] This ensures that the area of ​​the light-emitting part 101 emitting red light in the first light-emitting device group 110 is equal to the area of ​​the light-emitting part 101 emitting red light in the second light-emitting device group 120; ensures that the area of ​​the light-emitting part 101 emitting green light in the first light-emitting device group 110 is equal to the area of ​​the light-emitting part 101 emitting green light in the second light-emitting device group 120; and ensures that the area of ​​the light-emitting part 101 emitting blue light in the first light-emitting device group 110 is equal to the area of ​​the light-emitting part 101 emitting blue light in the second light-emitting device group 120. This results in a smaller difference between the color displayed in the sub-display area A2 and the color displayed in the main display area A1 when both display the same color. This helps to improve the color shift between the main display area A1 and the sub-display area A2, and improves the display uniformity of the display panel 100.

[0191] In another implementation, such as Figure 19As shown, the sub-display area A2' of the display panel includes multiple first light-emitting device groups 110', each group comprising 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 multiple second light-emitting device groups 120', each group comprising a red light-emitting device R2, a blue light-emitting device B2, and two green light-emitting devices G2. When displaying images, the light-emitting devices borrow or share light emitted by adjacent light-emitting devices (also known as pixel borrowing) to increase pixel density. Because the pixel density of the main display area A1' is greater than that of the sub-display area A2', the image displayed by the light-emitting devices in the sub-display area A2' exhibits more noticeable jagged edges when using pixel borrowing, resulting in a poorer display effect for the display panel.

[0192] In another implementation, the solution in the aforementioned other implementation is improved. For example... Figure 20 As shown, the sub-display area A2' of the display panel includes multiple first light-emitting device groups 110', each including 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 including a red light-emitting device R2, a blue light-emitting device B2, and two green light-emitting devices G2. The projected area of ​​the light-emitting portion of the green light-emitting device G1 in the first light-emitting device group 110' is twice the projected area of ​​the light-emitting portion of the green light-emitting device G2 in the second light-emitting device group 120'. The projected 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 projected area of ​​the light-emitting portion of the red light-emitting device R2 in the second light-emitting device group 120'. The projected 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 projected 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 sub-display area, the sub-display area will not use the aforementioned pixel borrowing method to increase pixel density during the display panel's image display process, thereby alleviating the jaggedness of the image displayed in the sub-display area.

[0193] However, because the projected size of the green light-emitting device G1 in the first light-emitting device group 110' is relatively large, the blocking effect of the light-shielding layer on the light emitted by this light-emitting device is weak. As a result, there is a relatively large amount of green light emitted from the light-emitting device G1 in the sub-display area A2'. Meanwhile, the blocking effect of the light-shielding layer on the red light emitted by the red light-emitting device R1 is strong, resulting in less red light emitted from the red light-emitting device R1 in the sub-display area A2'. Similarly, the blocking effect of the light-shielding layer on the blue light emitted by the blue light-emitting device B1 is also strong, resulting in less blue light emitted from the blue light-emitting device B1 in the sub-display area A2'. Therefore, when the red, green, and blue light in the sub-display area A2' are combined to form white light, the brightness of the green light is relatively high at a wide viewing angle, causing the combined white light to appear greenish. The image displayed in the sub-display area A2' has a severe color cast, and there is a significant 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 embodiments of this disclosure, an adjustment section 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 section 102 can increase the size of the outer contour of the orthographic projection of the corresponding light-emitting part 101, thereby improving the color shift phenomenon of the image displayed in the sub-display area A2, effectively reducing the difference between the images displayed in the sub-display area A2 and the main display area A1, and improving the display effect of the display panel 100.

[0195] Furthermore, to investigate the color shift of the image displayed on the display panel in the embodiments of this disclosure, the main display area of ​​the display panel, the secondary display area of ​​the display panel in another implementation described above, and the secondary display area of ​​the display panel in the above embodiments of this disclosure are all set to display white images, and their color shift is simulated to obtain the corresponding chromaticity diagram, such as... Figure 21 As shown.

[0196] Figure 21 In the diagram, 0° represents a viewing angle of 0°, also known as a normal viewing angle. In the chromaticity curve of the main display area, each point represents a different viewing angle. Specifically, from right to left, the points represent the chromaticity of a 0° viewing angle, a 15° viewing angle, a 30° viewing angle, a 45° viewing angle, a 60° viewing angle, and a 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. The chromaticity curve of the second sub-display area represents the chromaticity curve of the sub-display area of ​​the display panel in the embodiments of this disclosure. The three elliptical dashed circles represent three different color shift values: 2.5, 3.5, and 4.5. The closer the chromaticity curve is to the dashed circle 4.5, the greater its color shift; the closer the chromaticity curve is to the dashed circle 2.5, the smaller its color shift.

[0197] Depend on Figure 21It is known that the color shift of the image displayed on the display panel increases with the increase of the viewing angle. Among them, the color shift of the image displayed in the first sub-display area is the greatest at a larger viewing angle. The chromaticity value of the image displayed in the second sub-display area (i.e., the sub-display area of ​​the display panel in the embodiment of this disclosure) is close to the chromaticity value of the image displayed in the main display area. The color shift of the image displayed in the second sub-display area is smaller, and the color shift is more consistent with that of the image displayed in the main display area. It can be seen that the display panel 100 provided in the embodiment of this disclosure improves the color shift phenomenon of the image displayed in the sub-display area A2, and makes the color shift difference between the sub-display area A2 and the image displayed in the main display area A1 smaller, alleviating the display difference between the main display area A1 and the sub-display area A2, and improving the display uniformity of the display panel 100 and the display device 1000.

[0198] In other embodiments, such as Figures 23-27 As shown, the function of the adjustment layer 20 includes reflection or refraction, and the structure of the adjustment layer 20 is different from the adjustment layer in some of the above embodiments.

[0199] Understandable, Figure 23 It can be Figure 22 A cross-sectional view of a structure cut along the FF' direction. Figure 24 It can be Figure 22 Another cross-sectional view of the structure, cut along the FF' direction. Figure 25 It can be Figure 22 A cross-sectional view of a structure cut along the GG' direction. Figure 26 It can be Figure 22 Another cross-sectional view of the structure taken along the GG' direction. Figure 27 It can be Figure 22 Another sectional view of the structure, cut along the GG' direction.

[0200] In this embodiment, as 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 number of second light-emitting devices 12 included in the third light-emitting device group 130 can be multiple, the number of third light-emitting devices 13 included in the third light-emitting device group 130 can be multiple, and the number of fourth light-emitting devices 14 included in the third light-emitting device group 130 can be multiple.

[0202] For example, 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 aforementioned 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 within the first sub-opening 611, and a portion of the fourth light-emitting device 14 is located within the second sub-opening 612. A portion of the second light-emitting device 12 is located within 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] Therefore, the converging effect of the adjustment function 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 more consistent, so that the brightness of the red, green and blue light emitted from the adjustment function layer 20 at the same smaller viewing angle can be made more consistent, thereby alleviating the color shift phenomenon 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 sum of the areas of the light-emitting part 101 in at least one third light-emitting device 13 projected onto the adjustment function layer 20, the sum of the areas of the light-emitting part 101 in at least one fourth light-emitting device 14 projected onto the adjustment function layer 20, and the sum of the areas of the light-emitting part 101 in at least one second light-emitting device 12 projected onto the adjustment function layer 20 is 1:1:1.8.

[0207] Therefore, the lifespan of light-emitting devices 10 emitting different colors of light in the same third light-emitting device group 130 can be made more consistent and longer, which is beneficial to improving the lifespan 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 line connecting the center of the second light-emitting device 12, the center of the third light-emitting device 13, and the center of the fourth light-emitting device 14 forms a triangle.

[0209] Multiple third light-emitting device groups 130 are arranged in an array.

[0210] The arrangement of the aforementioned multiple light-emitting devices 10 can be referred to as Real RGB arrangement or Real RGB-like arrangement.

[0211] Therefore, the pixel borrowing method between adjacent light-emitting devices 10 can be avoided to achieve display, thus alleviating the jaggedness of the image displayed on the display panel 100.

[0212] In some examples, light can pass through the aforementioned adjustment layer 20 and exit. For example... Figure 23 As shown, the adjustment function layer 20 includes a first dimming layer 23 and a second dimming layer 24 stacked together.

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

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

[0215] A portion of the second dimming layer 24 is located within the fourth opening 231, and another portion of the second dimming layer 24 is located on the side of the first dimming layer 23 away from the planarization layer 50. Among the plurality of fourth openings 231, a number of fourth openings 231 are corresponding one-to-one with a plurality of first openings 61, and the orthographic projection of the first opening 61 onto the planarization layer 50 is within the orthographic projection range of the fourth opening 231 onto the planarization layer 50. A number of fourth openings 231 are also corresponding one-to-one with a plurality of second openings 62, and the orthographic projection of the second opening 62 onto the planarization layer 50 is within the orthographic projection range of the fourth opening 231 onto the planarization layer 50.

[0216] The light emitted by the light-emitting part 101 of the light-emitting device 10 can exit through the fourth opening 231. Some of the light emitted by the light-emitting part 101 of the light-emitting device 10 (e.g., 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 planarization layer 50 is located is acute, and the refractive index of the first dimming layer 23 is less than that of the second dimming layer 24, this part of the light is easily totally internally reflected by the sidewall and then exits from the second dimming layer 24. This causes the exit angle of this part of the light to change from a larger viewing angle to a smaller viewing angle, thereby increasing the amount of light emitted by the light-emitting device 10 with a smaller viewing angle. This makes the light emitted by the display panel 100 more focused, which is beneficial to improving the light extraction efficiency and display brightness of the light-emitting device 10. Furthermore, since the third light-emitting device 13 and the fourth light-emitting device 14 are provided with adjustment sections 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 similar to the size of the orthographic projection of the light-emitting part 101 of the second light-emitting device 12. This makes the converging effect of the adjustment function layer 20 on the light emitted by each light-emitting device 10 similar, thereby making the brightness of each color of light at the same viewing angle (smaller viewing angle) more consistent, which can improve the color shift phenomenon of the display panel 100.

[0217] In another implementation, the display panel includes multiple third light-emitting device groups. Each 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 aforementioned first dimming layer and second dimming layer. A portion of the wide-angle light emitted by the light-emitting devices undergoes total internal reflection at the sidewall of the fourth opening, transforming the wide-angle light into narrow-angle light, resulting in a larger amount of narrow-angle light emitted by the light-emitting devices. The blue light-emitting device has a larger projected area, resulting in a relatively larger amount of narrow-angle light emitted after passing through the adjustment function layer. Conversely, the red light-emitting device has a smaller projected area, resulting in a relatively smaller amount of wide-angle light emitted after passing through the adjustment function layer. Similarly, the green light-emitting device also has a relatively small projected area, resulting in a relatively smaller amount of wide-angle light emitted after passing through the adjustment function layer. When red, green, and blue light are combined to form white light, the white light synthesized by the display panel has a bluish tint, causing a severe color cast in the displayed image.

[0218] In the embodiments disclosed herein, the third light-emitting device 13 and the fourth light-emitting device 14 are provided with an adjustment section 102. The adjustment section 102 increases the size of the outer contour of the orthographic projection of the light-emitting part 101, so that the brightness of the light emitted from the third light-emitting device 13, the fourth light-emitting device 14 and the second light-emitting device 12 at the same viewing angle tends to be consistent after passing through the adjustment function layer 20. This makes the converging effect of the adjustment function layer 20 on different light-emitting devices tend to be consistent, thereby alleviating the color shift 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 stacked together.

[0220] The first dimming layer 23 includes a plurality of first dimming sections 232 spaced apart, and the angle α2 between the sidewall of the first dimming section 232 and the plane of the planarization layer 50 is an acute angle. For example, the cross-sectional view of the first dimming section 232 along the thickness direction of the substrate 30 is a trapezoid.

[0221] Of the plurality of first dimming units 232, a portion of the first dimming units 232 are configured one-to-one with a plurality of first openings 61, and the orthographic projection of the first opening 61 on the planarization layer 50 is within the orthographic projection range of the first dimming unit 232 on the planarization layer 50. Another portion of the first dimming units 232 are configured one-to-one with a plurality of second openings 62, and the orthographic projection of the second opening 62 on the planarization layer 50 is within the orthographic projection range of the first dimming unit 232 on the planarization layer 50.

[0222] The second dimming layer 24 covers a plurality of first dimming units 232. The refractive index of the first dimming layer 23 is greater than that of the second dimming layer 24.

[0223] Therefore, most of the light emitted by the light-emitting device 10 is emitted through the first dimming section 232. A portion of the light emitted by the light-emitting device 10 is incident on the sidewall of the first dimming section 232. Since the angle α2 between this sidewall and the plane of the planarization 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 the light is refracted by the sidewall and then incident on the second dimming layer 24 before emitting. The light emitted through the second dimming layer 24 tends to be emitted in a direction perpendicular to the substrate 30, causing the light to converge into a smaller viewing angle, thereby improving the light emission efficiency of the light-emitting device 10 and increasing the display brightness of the display panel 100. Furthermore, since the third light-emitting device 13 and the fourth light-emitting device 14 are provided with adjustment sections 102, the above-mentioned arrangement allows the adjustment function layer 20 to have a similar converging effect on the light emitted by each light-emitting device 10, thereby making the emitted brightness of light of different colors at the same viewing angle more consistent, and thus improving the color shift phenomenon of the display panel 100.

[0224] Based on the two examples above, when the adjustment function layer 20 includes a first dimming layer 23 and a second dimming layer 24, the adjustment function layer 20 further includes a color filter layer disposed 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-apart color filters 22. The light-shielding layer 21 includes a plurality of third openings 211, and the color filters 22 are located at least within the third openings 211.

[0226] For example, the light-shielding layer 21 can be a black matrix. The material of the black matrix includes opaque materials. The light-shielding layer 21 includes a plurality of third openings 211. The top view shape of the light-shielding layer 21 can be approximately a mesh structure, with the third openings 211 forming the mesh openings of the mesh structure.

[0227] For example, the color filter 22 is located within the third opening 211. Or, a portion of the color filter 22 is located within the third opening 211, while another portion is on the light-shielding layer 21.

[0228] Of the plurality of third openings 211, a portion of the third openings 211 are configured in a one-to-one correspondence with the plurality of first openings 61, and the orthographic projection of the first opening 61 on the planarization layer 50 lies within the orthographic projection range of the third opening 211 on the planarization layer 50. Another portion of the third openings 211 are configured in a one-to-one correspondence with the plurality of second openings 62, and the orthographic projection of the second opening 62 on the planarization layer 50 lies within the orthographic projection range of the third opening 211 on the planarization layer 50.

[0229] like Figure 25 As shown, the first dimming layer 23 includes a plurality of fourth openings 231, which are arranged one-to-one with a plurality of third openings 211. The orthographic projection of the third opening 211 on the substrate 30 is located within the orthographic projection range of the fourth opening 231 on the substrate 30. The 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 opening 231.

[0230] like Figure 26 As shown, the first dimming layer 23 includes a plurality of first dimming units 232, each of which is correspondingly disposed with a plurality of third openings 211. The orthographic projection of the third openings 211 onto the substrate 30 is located within the orthographic projection range of the first dimming units 232 onto the substrate 30. The light emitted by the light-emitting device 10 passes through the first opening 61 or the second opening 62 and then exits through the first dimming units 232.

[0231] Therefore, the brightness of light emitted from different light-emitting devices 10 at a larger viewing angle can be adjusted by using the color filter layer, and the brightness of light emitted from different light-emitting devices 10 at a smaller viewing angle can be adjusted by using the first dimming layer 23 and the second dimming layer 24. This makes the brightness difference of light emitted from the same viewing angle by each light-emitting device 10 from the adjustment function layer smaller, thereby effectively improving the color shift 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 together.

[0233] The third dimming layer 25 includes a plurality of third dimming sections 251 spaced apart. The angle α3 between the sidewall of the third dimming section 251 and the plane of the planarization layer 50 is an acute angle. For example, the cross-sectional view of the third dimming section 251 along the thickness direction of the substrate 30 is a trapezoid.

[0234] The color filter layer includes a light-shielding layer 21 and a plurality of spaced-apart color filters 22.

[0235] The material and structure of the light-shielding layer 21 can be referred to the descriptions 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, and the plurality of third openings 211 are respectively disposed in correspondence with a plurality of third dimming units 251. The third dimming unit 251 is located inside the third opening 211, and there is a gap 212 between the sidewall of the third dimming unit 251 and the sidewall of the third opening 211.

[0237] For example, the center of the orthographic projection of the third dimming unit 251 onto the substrate 30 coincides with the center of the orthographic projection of the third opening 211 onto the substrate 30. The orthographic projection of the aforementioned gap 212 onto the substrate 30 is annular in shape.

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

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

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

[0241] A first opening 61 or a second opening 62 is provided in correspondence with a third dimming unit 251 and a third opening 211.

[0242] The orthographic projection of the first opening 61 onto the planarization layer 50 lies within the orthographic projection range of the third opening 211 onto the planarization layer 50, and also within the orthographic projection range of the third dimming unit 251 onto the planarization layer 50. The refractive index of the color filter 22 is less than the refractive index of the third dimming unit 251.

[0243] Therefore, the light emitted by the light-emitting part 101 of the light-emitting device 10 is emitted after passing through the third dimming part 251 and the third opening 211. A portion of this light is incident on the side of the third dimming part 251, refracted to the color filter layer on that side, and emitted in a direction perpendicular to the substrate 30. This results in a greater amount of light emitted from the light-emitting device 10 at 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 color filter layer also improves the color purity of the emitted light. Furthermore, the above-mentioned arrangement reduces the number of film layers in the display panel 100, which helps to reduce the thickness of the display panel 100 and facilitates a thinner and lighter design for both the display panel 100 and the display device 1000.

[0244] For example, such as Figure 12 and Figure 23 As shown, the display panel 100 also 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 light-emitting device 10, thereby isolating the light-emitting device 10 from external moisture and other factors, thereby improving the light-emitting performance and lifespan of the light-emitting device 10, and preventing the oxidation of the light-emitting device 10 by moisture in the event of moisture intrusion.

[0246] The encapsulation layer 70 has a certain light transmittance, allowing light emitted from the light-emitting device 10 to pass through and exit. The encapsulation layer 70 includes a stacked inorganic encapsulation layer and an organic encapsulation layer. 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 inorganic materials and can be formed using a vapor deposition process. The organic encapsulation layer can be made of organic materials and can be formed using an inkjet printing process. The inorganic encapsulation layer can be made of OC (Optical Clear) adhesive.

[0248] It is understandable that the organic encapsulation layer is mainly used for planarization and stress relief, while the first and second inorganic encapsulation layers in the inorganic encapsulation layer are mainly used to block water and oxygen, and to encapsulate the organic encapsulation layer located between the first and second inorganic encapsulation layers.

[0249] In some embodiments, such as Figure 12 and Figure 23 As shown, the display panel 100 also 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 multiple touch electrodes for enabling the touch function of the display panel 100.

[0252] The touch layer 80 can be fabricated on the encapsulation layer 70 using a flexible layer on cell (FMLOC) process. This allows for a smaller thickness of the display panel 100 and the display device 1000, which is beneficial for the thinner and lighter design of the display panel 100 and the display device 1000.

[0253] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display panel, characterized by, The display panel comprises a plurality of light emitting devices and an adjusting functional layer located on the light emitting side of the plurality of light emitting devices; The plurality of light emitting devices have light emitting portions for emitting light; the adjusting functional layer is used for converging and emitting the light emitted by each light emitting portion; The light emitting device comprises a first light emitting device and a second light emitting device for emitting light of different colors; the area of the orthographic projection of the light emitting portion of the first light emitting device on the adjusting functional layer is smaller than the area of the orthographic projection of the light emitting portion of the second light emitting device on the adjusting functional layer; The first light emitting device further has an adjusting portion; the orthographic projection of the light emitting portion of the first light emitting device on the adjusting functional layer surrounds the orthographic projection of the adjusting portion on the adjusting functional layer; the adjusting portion does not emit light.

2. The display panel of claim 1, wherein, The orthographic projection of the first light emitting device on the adjusting functional layer has a central symmetry shape.

3. The display panel of 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 adjusting functional layer is the same as the shape of the outer contour of the orthographic projection of the adjusting portion on the adjusting functional layer.

4. The display panel of any one of claims 1-3, wherein, The orthographic projection of the adjusting portion on the adjusting functional layer has a central symmetry shape.

5. The display panel of claim 4, wherein, The shape of the orthographic projection of the adjusting portion on the adjusting functional layer comprises a square or a circle.

6. The display panel of any one of claims 1-5, wherein, The center of the orthographic projection of the adjusting portion on the adjusting functional layer coincides with the center of the orthographic projection of the light emitting portion on the adjusting functional layer.

7. The display panel according to any one of claims 1 to 6, characterized in that, The display panel comprises a substrate and a flat layer arranged in sequence; the plurality of light emitting devices are located between the flat layer and the adjusting functional layer; The flat layer has a plurality of grooves extending along the thickness direction thereof; the adjusting portion is located in the groove; the light emitting portion is located on the side of the flat layer away from the substrate; and the distance between the adjusting portion and the substrate is smaller than the distance between the light emitting portion and the substrate.

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

9. The display panel of claim 7 or 8, wherein, The light emitting device comprises a first electrode, a light emitting layer and a second electrode arranged in sequence on the flat layer; The first electrode of the first light emitting device comprises a first sub-portion and a second sub-portion; the first sub-portion is located in the groove and constitutes part of the adjusting portion; the second sub-portion is located outside the groove and constitutes part of the light emitting portion.

10. The display panel according to any one of claims 7 to 9, characterized in that, The display panel further comprises a boundary layer; the boundary layer is located between the flat layer and the adjusting functional layer; The boundary layer comprises a plurality of first openings and a plurality of second openings; the groove is in communication with 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; part of the first light emitting device is located in the first opening and the corresponding groove; part of the second light emitting device is located in the second opening; The adjusting functional 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 filters are located at least in the third openings; The orthographic projection of one first opening on the substrate is located within the orthographic projection range of one third opening on the substrate.

11. The display panel of claim 10, wherein, The first light emitting device comprises a third light emitting device and a fourth light emitting device emitting light rays of different colors; The display panel comprises a main display area and a sub-display area; the pixel density of the sub-display area is less than that 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 sub-display area; The light emitting device further comprises 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 rays emitted by the second light emitting device is the same as that of the light rays emitted by the sixth light emitting device, the color of the light rays emitted by the third light emitting device is the same as that of the light rays emitted by the fifth light emitting device, and the color of the light rays emitted by the fourth light emitting device is the same as that of the light rays emitted by the seventh light emitting device; The plurality of light emitting devices in the sub-display area comprises a plurality of first light emitting device groups; the first light emitting device group comprises at least one second light emitting device, at least one third light emitting device and at least one fourth light emitting device adjacent to each other; The plurality of light emitting devices in the main display area comprises a plurality of second light emitting device groups; the second light emitting device group comprises at least one fifth light emitting device, at least one sixth light emitting device and at least one seventh light emitting device adjacent to each other; The ratio of the sum of the areas of the orthographic projections of the light emitting parts of each third light emitting device 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 second light emitting device on the adjustment functional layer, and the sum of the areas of the orthographic projections of the light emitting parts of each fourth light emitting device on the adjustment functional layer, is equal to the ratio of the sum of the areas of the orthographic projections of the light emitting parts of each fifth light emitting device in the same second 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 sixth light emitting device on the adjustment functional layer, and the sum of the areas of the orthographic projections of the light emitting parts of each seventh light emitting device on the adjustment functional layer.

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

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

14. The display panel of any one of claims 11-13, wherein, The ratio of the sum of the areas of the orthographic projections of the light emitting parts of each third light emitting device 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 second light emitting device on the adjustment functional layer, and the sum of the areas of the orthographic projections of the light emitting parts of each fourth light emitting device on the adjustment functional layer is 1:2:1.

8.

15. The display panel according to any one of claims 11-14, characterized in that, The plurality of first openings comprises a plurality of first sub-openings and a plurality of second sub-openings; a part of the third light emitting device is located in the first sub-opening, and a part of the fourth light emitting device is located in the second sub-opening; 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 to each of the fourth light emitting devices in the same third light emitting device group is 1:1:1.

8.

16. The display panel of any one of claims 11-15, wherein, The first light emitting device group comprises one second light emitting device, one third light emitting device, and one fourth light emitting device; the line connecting the center of the one second light emitting device, the center of the one third light emitting device, and the center of the one fourth light emitting device forms a triangle. The second light emitting device group comprises one fifth light emitting device, two sixth light emitting devices, and one seventh light emitting device; the line connecting the center of the one fifth light emitting device and the center of the one seventh light emitting device intersects the line connecting the centers of the two sixth light emitting devices.

17. The display panel of claim 16, wherein, The area of the orthographic projection of the light emitting part in the third light emitting device on the adjustment functional layer is equal to the area of the orthographic projection of the light emitting part in the fifth light emitting device on the adjustment functional layer; The area of the orthographic projection of the light emitting part in the fourth light emitting device on the adjustment functional layer is equal to the area of the orthographic projection of the light emitting part in the seventh light emitting device on the adjustment functional layer; The area of the orthographic projection of the light emitting part in the second light emitting device on the adjustment functional layer is twice the area of the orthographic projection of the light emitting part in the sixth light emitting device on the adjustment functional layer.

18. The display panel of any one of claims 11-17, 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 of any one of claims 7-9, wherein, The first light emitting device comprises third light emitting devices and fourth light emitting devices emitting different color light; the plurality of light emitting devices comprises a plurality of third light emitting device groups; the third light emitting device group comprises 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 comprises a boundary layer; the boundary layer is located between the planar layer and the adjustment functional layer; The boundary layer comprises a plurality of first openings and a plurality of second openings; the recess communicates with the first openings, and the orthographic projection of the recess on the substrate is located within the orthographic projection range of the first openings on the substrate; The first openings comprise first sub-openings and second sub-openings; a part of the third light emitting device is located in the first sub-openings, and a part of the fourth light emitting device is located in the second sub-openings; A part of the second light emitting device is located in the second openings; 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 to each of the fourth light emitting devices in the same third light emitting device group is 1:1:

1.

20. The display panel of claim 19, wherein, The ratio of the sum of the areas of the orthographic projections of the light emitting parts of the at least one third light emitting device on the adjusting functional layer, the sum of the areas of the orthographic projections of the light emitting parts of the at least one fourth light emitting device on the adjusting functional layer, and the sum of the areas of the orthographic projections of the light emitting parts of the at least one second light emitting device on the adjusting functional layer is 1:1:1.

8.

21. The display panel of claim 19 or 20, wherein, The third light emitting device group comprises one first light emitting device, one third light emitting device, and one second light emitting device; the line between the center of the one second light emitting device, the center of the one third light emitting device, and the center of the one fourth light emitting device forms a triangle.

22. The display panel of any one of claims 19-21, wherein, The adjusting functional layer comprises a first light adjusting layer and a second light adjusting layer arranged in a stack; The refractive index of the first light adjusting layer is smaller than the refractive index of the second light adjusting layer; the first light adjusting layer comprises a plurality of fourth openings, the included angle between the sidewall of the fourth opening and the plane where the flat layer is located is an acute angle; a part of the second light adjusting layer is located in the fourth opening, and another part of the second light adjusting layer is located on the side of the first light adjusting layer away from the flat layer; The orthographic projection of the first opening on the flat layer is located within the orthographic projection range of the fourth opening on the flat layer.

23. The display panel of any one of claims 19-21, wherein, The adjusting functional layer comprises a first light adjusting layer and a second light adjusting layer arranged in a stack; The refractive index of the first light adjusting layer is greater than the refractive index of the second light adjusting layer; the first light adjusting layer comprises a plurality of first light adjusting parts arranged at intervals, the included angle between the sidewall of the first light adjusting part and the plane where the flat layer is located is an acute angle, and the second light adjusting layer covers a plurality of the first light adjusting parts; the orthographic projection of the first opening on the flat layer is located within the orthographic projection range of the first light adjusting part on the flat layer.

24. The display panel of claim 22 or 23, wherein, The adjusting functional layer further comprises a color film layer arranged between the plurality of light emitting devices and the first light adjusting layer; The color film layer comprises a light shielding layer and a plurality of color films arranged at intervals; the light shielding layer comprises a plurality of third openings, and the color film is located at least in the third opening; 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 of any one of claims 19-21, wherein, The adjusting functional layer comprises a third light adjusting layer and a color film layer arranged in a stack; The third light adjusting layer comprises a plurality of third light adjusting parts arranged at intervals; the included angle between the sidewall of the third light adjusting part and the plane where the flat layer is located is an acute angle; The color film layer comprises a light shielding layer and a plurality of color films arranged at intervals; the light shielding layer comprises a plurality of third openings, the third light adjusting part is located in the third opening, and there is a gap between the sidewall of the third light adjusting part and the sidewall of the third opening; the color film is located at least in the gap and on the side of the third light adjusting 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 within the orthographic projection range of the third light adjusting part on the flat layer; the refractive index of the color film is smaller than the refractive index of the third light adjusting part.

26. The display panel of any one of claims 19-25, 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 comprising: The display device comprises the display panel according to any one of claims 1-26, and an optical element located on the non-light-emitting side of the sub-display area of the display panel.

Images