Display panel and display terminal

Abstract

The present application discloses a display panel and a display terminal; the display panel (100) comprises a light-emitting layer (30) having light-emitting units (30a) with different emission colors, a plurality of refractive portions (62), a plurality of grooves (61), and a filling layer (70), wherein one refractive portion (62) corresponds to one light-emitting unit (30a), a groove (61) corresponding to a first light-emitting unit (301) has a first width (L3r), a groove (61) corresponding to a second light-emitting unit (302) has a second width (L3g), a groove (61) corresponding to a third light-emitting unit (303) has a third width (L3b), and at least two of the first width (L3r), the second width (L3g), and the third width (L3b) are different.

Description

Display panel and display terminal Technical Field

[0001] This application relates to the display field, and more particularly to display panels and display terminals. Background Technology

[0002] OLED (Organic Light-Emitting Diode) display technology is a new type of display technology that has gradually attracted attention due to its unique advantages such as low power consumption, high saturation, fast response time and wide viewing angle, and has occupied a certain position in the field of display technology.

[0003] Currently, in order to improve the light emission efficiency of display panels, multiple micro-focusing units are usually set on the light emission side of the display panel to concentrate light from large angles to small angles. However, due to the differences between different color sub-pixels, the attenuation of light of different colors is not the same at large angles, which leads to the technical problem of color shift at large viewing angles. Invention Overview

[0004] This application provides a display panel and a display terminal to solve the technical problem of color shift in existing display panels at wide viewing angles.

[0005] To solve the above-mentioned technical problems, the technical solution provided in this application is as follows:

[0006] This application provides a display panel, which includes:

[0007] substrate;

[0008] A light-emitting layer is disposed on one side of the substrate. The light-emitting layer includes a plurality of light-emitting units, and the plurality of light-emitting units include a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit that emit different colors.

[0009] Multiple refractive portions are disposed on the side of the light-emitting layer away from the substrate, and one refractive portion corresponds to one light-emitting unit;

[0010] A refractive body is disposed between two adjacent refractive portions, and the refractive body and the plurality of refractive portions are disposed on the surface of the same film layer. A plurality of grooves are provided between the refractive body and the plurality of refractive portions, and one groove is disposed on the periphery of one of the refractive portions.

[0011] A filling layer is disposed on the side of the plurality of refractive layers opposite to the substrate, and the filling layer fills the plurality of grooves, wherein the refractive index of the material of the refractive portion is greater than the refractive index of the material of the filling layer;

[0012] The groove corresponding to the first light-emitting unit has a first width, the groove corresponding to the first light-emitting unit has a second width, and the groove corresponding to the first light-emitting unit has a third width, wherein at least two of the first width, the second width, and the third width are different.

[0013] This application provides a display terminal, which includes a display panel; wherein the display panel includes:

[0014] substrate;

[0015] A light-emitting layer is disposed on one side of the substrate. The light-emitting layer includes a plurality of light-emitting units, and the plurality of light-emitting units include a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit that emit different colors.

[0016] Multiple refractive portions are disposed on the side of the light-emitting layer away from the substrate, and one refractive portion corresponds to one light-emitting unit;

[0017] A refractive body is disposed between two adjacent refractive portions, and the refractive body and the plurality of refractive portions are disposed on the surface of the same film layer. A plurality of grooves are provided between the refractive body and the plurality of refractive portions, and one groove is disposed on the periphery of one of the refractive portions.

[0018] A filling layer is disposed on the side of the plurality of refractive layers opposite to the substrate, and the filling layer fills the plurality of grooves, wherein the refractive index of the material of the refractive portion is greater than the refractive index of the material of the filling layer;

[0019] The groove corresponding to the first light-emitting unit has a first width, the groove corresponding to the first light-emitting unit has a second width, and the groove corresponding to the first light-emitting unit has a third width, wherein at least two of the first width, the second width, and the third width are different. Attached Figure Description

[0020] Figure 1 is a first cross-sectional view of the display panel of this application;

[0021] Figure 2 is a second cross-sectional view of the display panel of this application;

[0022] Figure 3 is a schematic diagram of a single light-emitting unit area of ​​the display panel of this application;

[0023] Figure 4 is a color deviation trajectory comparison diagram of the first embodiment of the display panel of this application;

[0024] Figure 5 is a color deviation trajectory comparison diagram of the second embodiment of the display panel of this application. Embodiments of the present invention

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application.

[0026] In the description of this application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, 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 technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified.

[0028] Referring to Figures 1 and 2, the display panel 100 may include a driving circuit layer 20 disposed on the substrate 10, a pixel definition layer 80 disposed on the driving circuit layer 20, a light-emitting layer 30 disposed on the same layer as the pixel definition layer 80, an encapsulation layer 40 disposed on the pixel definition layer 80, a refractive body 63 and a plurality of refractive portions 62 disposed on the encapsulation layer 40, and a filling layer 70 disposed on the plurality of refractive portions 62.

[0029] In this embodiment, the substrate 10 can be made of materials such as glass, quartz, or polyimide.

[0030] Referring to Figure 1, the driving circuit layer 20 may include multiple thin-film transistors 21. The thin-film transistors 21 may be etch-block type, back-channel etch type, or classified into bottom-gate thin-film transistors, top-gate thin-film transistors, etc., according to the position of the gate and the active layer. There are no specific limitations. For example, the thin-film transistor 21 shown in Figure 1 is a top-gate thin-film transistor. The thin-film transistor 21 may include a light-shielding layer 211 disposed on the substrate 10, a buffer layer 212 disposed on the light-shielding layer 211, an active layer 213 disposed on the buffer layer 212, a gate insulating layer 214 disposed on the active layer 213, a gate layer 215 disposed on the gate insulating layer 214, an inter-insulating layer 216 disposed on the gate layer 215, a source-drain layer 217 disposed on the inter-insulating layer 216, and a planarization layer 218 disposed on the source-drain layer 217.

[0031] Referring to Figure 1, the display panel 100 may further include an anode layer 31 disposed on the planarization layer 218, a light-emitting layer 30 disposed on the anode layer 31, and a cathode layer 32 disposed on the light-emitting layer 30. The anode layer 31 includes a plurality of anodes 311, the pixel definition layer 80 includes a plurality of pixel openings 801 corresponding one-to-one with the plurality of anodes 311, and each pixel opening 801 exposes a portion of the upper surface of the anode 311. The light-emitting layer 30 may include a plurality of light-emitting units 30a corresponding one-to-one with the plurality of anodes 311.

[0032] It should be noted that the multiple light-emitting units 30a may include a first light-emitting unit 301, a second light-emitting unit 302, and a third light-emitting unit 303 with different light-emitting colors; for example, the light-emitting color of the first light-emitting unit 301 may be red, the light-emitting color of the second light-emitting unit 302 may be green, and the light-emitting color of the third light-emitting unit 303 may be blue.

[0033] Please refer to Figure 1. The encapsulation layer 40 covers the pixel definition layer 80 and continuously covers multiple pixel openings 801 and multiple light-emitting units 30a. The encapsulation layer 40 may include at least a first inorganic encapsulation layer, a first organic encapsulation layer and a second inorganic encapsulation layer stacked on the pixel definition layer 80.

[0034] Please refer to Figure 2. The display panel 100 also includes a refractive body 63 and a plurality of refractive portions 62 disposed on the side of the encapsulation layer 40 away from the substrate 10, and a filling layer 70 disposed on the side of the plurality of refractive portions 62 away from the substrate 10.

[0035] In this embodiment, the refractive body 63 is disposed between two adjacent refractive portions 62, and the refractive body 63 and the plurality of refractive portions 62 are disposed on the surface of the same film layer. A plurality of grooves 61 are provided between the refractive body 63 and the plurality of refractive portions 62. A groove 61 is disposed on the periphery of a refractive portion 62. A refractive portion 62 corresponds to a light-emitting unit 30a. The filling layer 70 fills the plurality of grooves 61. The refractive index of the material of the refractive portion 62 is greater than the refractive index of the material of the filling layer 70.

[0036] In this embodiment, the groove 61 corresponding to the first light-emitting unit 301 has a first width L3r, the groove 61 corresponding to the first light-emitting unit 301 has a second width L3g, and the groove 61 corresponding to the first light-emitting unit 301 has a third width L3b. At least two of the first width L3r, the second width L3g, and the third width L3b are different.

[0037] This application improves the technical problem of color shift at large viewing angles by setting a refractive part 62 corresponding to the light-emitting unit 30a on the light-emitting side of the display panel 100 and a groove 61 around the refractive part 62, and adjusting the width of the groove 61 corresponding to different color light-emitting units 30a. This makes the attenuation degree of different colors of light similar at large angles.

[0038] It should be noted that the refractive body 63 of this application can be a cross-shaped mesh structure; that is, the refractive body 63 and multiple refractive parts 62 of this application can be formed in the same photomask process, and multiple grooves 61 are formed in the film layer where the refractive body 63 and multiple refractive parts 62 are located by etching process, and the grooves 61 separate the refractive parts 62 from the refractive body 63.

[0039] For example, in the structure of Figure 2, there are a first sub-groove 611, a second sub-groove 612, and a third sub-groove 613 in a plurality of grooves 61, and a plurality of refractive portions 62 including a first sub-part 621, a second sub-part 622, and a third sub-part 623. The first sub-groove 611 is located on the periphery of the first sub-part 621, the second sub-groove 612 is located on the periphery of the second sub-part 622, and the third sub-groove 613 is located on the periphery of the third sub-part 623. The first sub-part 621 corresponds to the first light-emitting unit 301, the second sub-part 622 corresponds to the second light-emitting unit 302, and the third sub-part 623 corresponds to the third light-emitting unit 303. The width of the first sub-groove 611 is a first width L3r, the width of the second sub-groove 612 is a second width L3g, and the width of the third sub-groove 613 is a third width L3b. At least two of the first width L3r, the second width L3g, and the third width L3b are different.

[0040] It should be noted that the groove 61 can be a continuous or discontinuous groove 61 that surrounds the corresponding refractive part 62.

[0041] It should be noted that the material of the refractive body 63 is the same as that of the refractive part 62, that is, the two have the same refractive index.

[0042] Please refer to Figure 2. The filling layer 70 can be disposed on multiple refractive portions 62, and the filling layer 70 fills multiple grooves 61. At the same time, the refractive index of the filling layer 70 can be less than the refractive index of the multiple refractive portions 62, so that each refractive portion 62 forms a micro-focusing unit. For example, in the structure of Figure 2, since the refractive index of the material of the multiple refractive portions 62 is greater than the refractive index of the material of the filling layer 70, the large-angle light emitted from the light-emitting unit 30a will be refracted through the interface between the refractive portion 62 and the filling layer 70 to form small-angle light, and be discharged from the light-emitting surface of the display panel 100 to achieve the focusing effect of the emitted light, improve the light emission effect of the light-emitting unit 30a, and thus improve the light emission efficiency of the display panel 100.

[0043] In this embodiment, the refractive index of the plurality of refractive portions 62 is greater than or equal to 1.8, for example, it can be 1.8 to 2.0. For example, the material of the plurality of refractive portions 62 can be an inorganic transparent material composed of silicon nitride, silicon oxynitride, or silicon nitride-oxygen.

[0044] In this embodiment, the refractive index of the filler layer 70 is less than or equal to 1.6, for example, it can be 1.4 to 1.6. For example, the material of the filler layer 70 can be an organic transparent material such as acrylic resin, polyimide resin, polyamide resin, or polyaryl sulfide.

[0045] In this embodiment, both the refractive body 63 and the refractive part 62 include an upper surface, a lower surface, and a sidewall connecting the upper surface and the lower surface. The upper surface is the surface of the refractive part 62 or the refractive body 63 away from the substrate 10, and the lower surface is the surface of the refractive part 62 or the refractive body 63 close to the substrate 10. At the same time, the orthographic projection of the upper surface onto the corresponding lower surface is located within the lower surface, and the area of ​​the upper surface is smaller than the area of ​​the corresponding lower surface.

[0046] In this embodiment, the sidewall can be an inclined surface or a circular arc surface, etc.

[0047] In this embodiment, the display panel 100 may further include a touch layer 50. The touch layer 50 may be a single layer or embedded in the refractive body 63 and the filling layer 70. For example, in the structure of FIG2, the touch layer 50 may be disposed on the side of the refractive body 63 away from the substrate. The touch layer 50 includes multiple horizontal and vertical intersecting touch wires 501, which are disposed on the refractive body 63.

[0048] In this embodiment, the touch layer 50 provided in this application embodiment may be mutually capacitive or self-capacitive.

[0049] In this embodiment, if the touch layer 50 is mutually capacitive, multiple touch wires 501 can form multiple first electrodes and multiple second electrodes. The multiple first electrodes are directly connected, and the multiple second electrodes are electrically connected through metal in the bridging layer. The bridging layer can be disposed between the encapsulation layer 40 and the refractive body 63. If the touch layer 50 is self-capacitive, multiple touch wires 501 can form multiple touch electrodes and touch leads connected to the touch electrodes. One touch lead is electrically connected to one touch electrode.

[0050] It should be noted that the embodiments described above are merely examples, but are not limited thereto. The specific type and structure of the touch layer 50 can be selected according to actual needs.

[0051] It should be noted that, in order to improve the light-gathering effect of the refractive part 62, the refractive part 62 of this application covers the corresponding pixel opening 801 on the pixel definition layer 80 with its orthogonal projection surface, and the orthogonal projection area of ​​the refractive part 62 on the substrate 10 is larger than the orthogonal projection area of ​​the corresponding pixel opening 801 on the substrate 10, which means that the refractive part 62 needs to completely cover the pixel opening 801.

[0052] Please refer to Figure 3, which is a schematic diagram of a single light-emitting unit area of ​​the display panel of this application. Due to process limitations, the sidewalls of the pixel opening 801 and the groove 61 are both inclined surfaces. Therefore, the dimensions of the edge of the light-emitting unit 30a and the edge of the adjacent touch wire 501 of this application can be L1 to L5. L1 is the dimension from the bottom edge of the pixel opening 801 to the top edge of the refractive part 62, L2 is the dimension from the top edge of the refractive part 62 to the bottom edge of the refractive part 62, L3 is the dimension from the bottom edge of the refractive part 62 to the bottom edge of the refractive body 63, L4 is the dimension from the bottom edge of the refractive body 63 to the top edge of the refractive body 63, and L5 is the dimension from the top edge of the refractive body 63 to the edge of the adjacent touch wire 501.

[0053] In this embodiment, L2 refers to the projected dimensions of the sidewall of the refractive part 62 on the substrate 10, and L4 refers to the projected dimensions of the sidewall of the refractive body 63 on the substrate 10. When the sidewall is an inclined plane with a large angle to the substrate 10, that is, when both the refractive part 62 and the refractive body 63 are trapezoidal, the dimensions of L2 and L4 are small. In this embodiment, the dimensions of L2 and L4 can be ignored. At the same time, the projected dimensions of the sidewall of the pixel opening 801 on the substrate are also small. Therefore, the dimensions of the edge of the light-emitting unit 30a and the edge of the adjacent touch wire 501 can be the sum of L1, L3 and L5. In this application, the width dimension of the groove 61 is the aforementioned L3.

[0054] It should be noted that when the angle between the sidewall of the refractive part 62 or the refractive body 63 and the substrate 10 is small, L2 and L4 cannot be ignored. The dimensions of the edge of the light-emitting unit 30a and the edge of the adjacent touch wire 501 are the sum of L1, L2, L3, L4 and L5.

[0055] In this embodiment, since the light-emitting areas of different light-emitting units are different, the areas of the refractive portions 62 corresponding to light-emitting units 30a of different colors may be different. However, in order to ensure that the light-gathering effect of the refractive portions 62 on each light-emitting unit 30a is the same, this application can make the distance between the boundary of the orthographic projection surface of the light-emitting unit 30a of different colors on the substrate 10 and the boundary of the orthographic projection surface of the corresponding refractive portion 62 on the substrate 10 the same, that is, equivalent to the L1 of different color light-emitting units being the same.

[0056] For example, the distance between the boundary of the orthographic projection surface of the first light-emitting unit 301 on the substrate 10 and the boundary of the orthographic projection surface of the corresponding first sub-part 621 on the substrate 10, the distance between the boundary of the orthographic projection surface of the second light-emitting unit 302 on the substrate 10 and the boundary of the orthographic projection surface of the corresponding second sub-part 622 on the substrate 10, and the distance between the boundary of the orthographic projection surface of the third light-emitting unit 303 on the substrate 10 and the boundary of the orthographic projection surface of the corresponding third sub-part 623 on the substrate 10 are all the same.

[0057] Meanwhile, since the intensity of the emitted light from the light-emitting units 30a of different colors is different, in order to reduce the intensity difference of the emitted light in the normal viewing angle, the present application can differentiate the area of ​​the light-emitting units 30a of different colors; for example, the light emitted by the first light-emitting unit 301 is red light, the light emitted by the second light-emitting unit 302 is green light, and the light emitted by the third light-emitting unit 303 is blue light. Since the light intensity of green light is greater than that of red light, and the light intensity of red light is greater than that of blue light, the area of ​​the second light-emitting unit 302 is smaller than that of the first light-emitting unit 301, and the area of ​​the first light-emitting unit 301 is smaller than that of the third light-emitting unit 303.

[0058] In this embodiment, to facilitate the arrangement of the light-emitting units 30a, the distance from the edge of each light-emitting unit 30a to the boundary of the adjacent touch wire 501 is equal. For example, the boundary of the orthographic projection surface of the first light-emitting unit 301 on the touch layer 50 has a first distance from the boundary of the adjacent touch wire 501, the boundary of the orthographic projection surface of the second light-emitting unit 302 on the touch layer 50 has a second distance from the boundary of the adjacent touch wire 501, and the boundary of the orthographic projection surface of the third light-emitting unit 303 on the touch layer 50 has a third distance from the boundary of the adjacent touch wire 501. The first distance, the second distance, and the third distance are all equal, which means that the sum of L1, L3, and L5 corresponding to different color light-emitting units 30a is equal.

[0059] It should be noted that the first, second, and third spacings in this application are the minimum spacings from the outer contour of the corresponding light-emitting unit 30a to the edge of the adjacent touch wire 501 in a top view of the display panel.

[0060] Based on the above embodiments, due to the setting of the groove 61, no material constituting a high refractive index is set in the area where the groove 61 is located. That is, some of the light emitted by the light-emitting unit 30a at a large viewing angle can be exported through the area of ​​the groove 61. However, due to the differences between the light-emitting units 30a of different colors, the attenuation degree of different colors of light at large angles is different. That is, the amount of light exported from the groove 61 is different, which leads to the technical problem of color shift at large viewing angles.

[0061] For example, in the color shift trajectory curves of Figures 4 and 5, curve R is the curve of red light at a 30° viewing angle, curve G is the curve of green light at a 45° viewing angle, and curve B is the curve of blue light at a 60° viewing angle. Color shift trajectory diagrams at different viewing angles are obtained at 5° intervals. When the first width L3r, the second width L3g, and the third width L3b are equal, color shift trajectory curve 1 is obtained. Curve 1 has an inflection point between the 45° and 60° viewing angles and shifts towards curve B, which causes the display panel 100 to have a color shift problem at large viewing angles.

[0062] Based on the above problems, this application can make the first width L3r equal to the second width L3g, and the first width L3r greater than the third width L3b; or, the first width L3r can be equal to the third width L3b, and the first width L3r greater than the second width L3g; or, the second width L3g can be equal to the third width L3b, and the second width L3g greater than the first width L3r.

[0063] For example, in the structure shown in Figure 4, when the first width L3r is equal to the second width L3g, and the first width L3r is greater than the third width L3b, it is equivalent to reducing the third width L3b. Color shift trajectory curves 2 under different viewing angles are obtained at 5° intervals. When the third width L3b is reduced, the light emitted by the third light-emitting unit 303 under large viewing angles will be reduced, causing the color shift trajectory curve 2 to move away from curve B, improving the position of the inflection point, and thus improving the technical problem of color shift under large viewing angles.

[0064] For example, in the structure of Figure 5, the second width L3g and the third width L3b are equal, and the second width L3g is greater than the first width L3r, which is equivalent to increasing the second width L3g. The color shift trajectory curve 3 under different viewing angles is obtained at 5° intervals. When the second width L3g increases, the light emitted by the second light-emitting unit 302 under the large viewing angle will increase, causing the color shift trajectory curve A to move away from the curve B and towards the curve G, improving the position of the inflection point, and thus improving the technical problem of color shift under the large viewing angle.

[0065] Similarly, when the second width L3g can be equal to the third width L3b, and the second width L3g is greater than the first width L3r, it is equivalent to reducing the first width L3r. The light emitted by the first light-emitting unit 301 under a large viewing angle will be reduced, causing the color shift trajectory curve 2 to shift away from curves B and G, improving the position of the inflection point, and thus improving the technical problem of color shift under a large viewing angle.

[0066] In other embodiments, the second width L3g may be greater than the first width L3r, and the first width L3r may be greater than the third width L3b.

[0067] Based on the above embodiments, since the thickness of the refractive part 62 is positively correlated with the light-gathering effect of the refractive part 62, and as can be seen from the curves in Figures 4 and 5, curve 1 has an inflection point between the 45° and 60° viewing angles and shifts towards curve B. Therefore, this application can increase the brightness of the third light-emitting unit 303 at the positive viewing angle and reduce the light emitted by the third light-emitting unit 303 at the large viewing angle, which is equivalent to increasing the thickness of the third sub-part 623, so that the thickness of the first sub-part 621 and the thickness of the second sub-part 622 are both less than the thickness of the third sub-part 623.

[0068] It should be noted that the thickness of the first sub-part 621, the second sub-part 622 and the third sub-part 623 in this application is the distance between the upper surface and the lower surface of the refractive part 62.

[0069] In this embodiment, the thickness of the first sub-part 621 and the thickness of the second sub-part 622 can be equal.

[0070] In this embodiment, the thicknesses of the first sub-part 621, the second sub-part 622, and the third sub-part 623 are all greater than or equal to 0.5 μm and less than or equal to 1 μm.

[0071] Based on the above embodiments, when the spacing between adjacent light-emitting units 30a and / or the area of ​​adjacent light-emitting units 30a are equal, since the intensity of the emitted light from light-emitting units 30a of different colors is different, this application can adjust the uniformity of front light emission of light-emitting units 30a of different colors by adjusting the thickness of the refractive part 62. For example, the thickness of the second sub-part 622 is less than the thickness of the first sub-part 621, and the thickness of the first sub-part 621 is less than the thickness of the third sub-part 623. At the same time, while ensuring the uniformity of front light emission of each light-emitting unit 30a, this application can adjust the uniformity of side light emission of different light-emitting units 30a by adjusting the width of the first sub-groove 611, the second sub-groove 612, and the third sub-groove 613. Therefore, this application can simultaneously adjust the thickness of the refractive part 62 and the width of the groove 61 to adjust the light emission of the corresponding light-emitting unit 30a on the front and side, thereby improving the uniformity of light emission of each light-emitting unit 30a on the front and side.

[0072] Please refer to Figure 2. The display panel 100 also includes a cover plate 90, and the side surface of the filler layer 70 facing away from the substrate 10 is bonded to the cover plate 90.

[0073] In this embodiment, the cover plate 90 is made of a high light transmittance material, and the light transmittance of the cover plate 90 can be greater than 90%. Meanwhile, the material of the cover plate 90 can be PET (polyethylene terephthalate), UTG (ultra-thin glass), PI (polyimide), PEN (polyethylene naphthalate), PC (polycarbonate), PMMA (polymethyl methacrylate), TAC (cellulose triacetate), etc.

[0074] In this embodiment, the thickness of the cover plate 90 can be from 20 micrometers to 120 micrometers.

[0075] In this embodiment, the thickness of the cover plate 90 is greater than or equal to the thickness of the second refractive layer 70. For example, the ratio of the thickness of the cover plate 90 to the thickness of the second refractive layer 40 is in the range of 1 to 8.

[0076] This application also proposes a display terminal, which includes the aforementioned display panel. The display terminal can be any product or component with display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator.

[0077] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0078] The technical solutions provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions in the embodiments of this application.

Claims

1. A display panel, wherein, include: substrate; A light-emitting layer is disposed on one side of the substrate. The light-emitting layer includes a plurality of light-emitting units, and the plurality of light-emitting units include a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit that emit different colors. Multiple refractive portions are disposed on the side of the light-emitting layer away from the substrate, and one refractive portion corresponds to one light-emitting unit; A refractive body is disposed between two adjacent refractive portions, and the refractive body and the plurality of refractive portions are disposed on the surface of the same film layer. A plurality of grooves are provided between the refractive body and the plurality of refractive portions, and one groove is disposed on the periphery of one of the refractive portions. A filling layer is disposed on the side of the plurality of refractive layers opposite to the substrate, and the filling layer fills the plurality of grooves, wherein the refractive index of the material of the refractive portion is greater than the refractive index of the material of the filling layer; The groove corresponding to the first light-emitting unit has a first width, the groove corresponding to the first light-emitting unit has a second width, and the groove corresponding to the first light-emitting unit has a third width, wherein at least two of the first width, the second width, and the third width are different.

2. The display panel according to claim 1, wherein, The first light-emitting unit emits red light, the second light-emitting unit emits green light, and the third light-emitting unit emits blue light.

3. The display panel according to claim 2, wherein, The first width is equal to the second width, and the first width is greater than the third width.

4. The display panel according to claim 2, wherein, The first width is equal to the third width, and the first width is greater than the second width.

5. The display panel according to claim 2, wherein, The second width and the third width are equal, and the second width is greater than the first width.

6. The display panel according to any one of claims 1 to 5, wherein, The display panel further includes a pixel definition layer with multiple pixel openings, and one of the light-emitting units is located within one of the pixel openings; Wherein, the refractive part projects onto the pixel definition layer and covers the corresponding pixel opening, and the projected area of ​​the refractive part on the substrate is greater than the projected area of ​​the corresponding pixel opening on the substrate.

7. The display panel according to claim 6, wherein, The distance between the boundary of the orthographic projection surface of the light-emitting unit of different colors on the substrate and the boundary of the orthographic projection surface of the corresponding refractive part on the substrate is the same.

8. The display panel according to any one of claims 1 to 5, wherein, The display panel also includes a touch layer disposed on the side of the refractive body away from the substrate. The touch layer includes multiple intersecting touch wires, which are disposed on the refractive body. Wherein, the boundary of the orthographic projection surface of the first light-emitting unit on the touch layer has a first distance from the boundary of the adjacent touch wire, the boundary of the orthographic projection surface of the second light-emitting unit on the touch layer has a second distance from the boundary of the adjacent touch wire, and the boundary of the orthographic projection surface of the third light-emitting unit on the touch layer has a third distance from the boundary of the adjacent touch wire, wherein the first distance, the second distance, and the third distance are all equal.

9. The display panel according to any one of claims 1 to 5, wherein, The plurality of refractive portions include a first sub-portion, a second sub-portion, and a third sub-portion, wherein the first sub-portion corresponds to the first light-emitting unit, the second sub-portion corresponds to the second light-emitting unit, and the third sub-portion corresponds to the third light-emitting unit; The thickness of the first sub-part and the thickness of the second sub-part are both less than the thickness of the third sub-part.

10. The display panel according to claim 9, wherein, The thickness of the first sub-part, the second sub-part, and the third sub-part is greater than or equal to 0.5 μm and less than or equal to 1 μm.

11. The display panel according to any one of claims 1 to 5, wherein, The groove is a continuous or discontinuous groove that surrounds the corresponding refractive part.

12. The display panel according to any one of claims 1 to 5, wherein, Both the refractive body and the refractive part include an upper surface, a lower surface, and a sidewall connecting the upper surface and the lower surface. The upper surface is the surface of the refractive part or the refractive body away from the substrate, and the lower surface is the surface of the refractive part or the refractive body close to the substrate. The orthographic projection of the upper surface onto the corresponding lower surface is located within the lower surface, and the area of ​​the upper surface is smaller than the area of ​​the corresponding lower surface.

13. The display panel according to claim 12, wherein, The sidewall is an inclined surface or a circular arc surface.

14. The display panel according to any one of claims 1 to 5, wherein, The material of the refractive body is the same as the material of the refractive part.

15. The display panel according to claim 14, wherein, The refractive index of the refracting part is greater than or equal to 1.8, and the refractive index of the filling layer is less than or equal to 1.

6.

16. The display panel according to claim 14, wherein, The material of the refractive part is an inorganic transparent material composed of silicon nitride, silicon oxynitride, or silicon nitride-oxygen, and the material of the filling layer is an organic transparent material such as acrylic resin, polyimide resin, polyamide resin, or polyarylene sulfide.

17. A display terminal, comprising a display panel; wherein, The display panel includes: substrate; A light-emitting layer is disposed on one side of the substrate. The light-emitting layer includes a plurality of light-emitting units, and the plurality of light-emitting units include a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit that emit different colors. Multiple refractive portions are disposed on the side of the light-emitting layer away from the substrate, and one refractive portion corresponds to one light-emitting unit; A refractive body is disposed between two adjacent refractive portions, and the refractive body and the plurality of refractive portions are disposed on the surface of the same film layer. A plurality of grooves are provided between the refractive body and the plurality of refractive portions, and one groove is disposed on the periphery of one of the refractive portions. A filling layer is disposed on the side of the plurality of refractive layers opposite to the substrate, and the filling layer fills the plurality of grooves, wherein the refractive index of the material of the refractive portion is greater than the refractive index of the material of the filling layer; The groove corresponding to the first light-emitting unit has a first width, the groove corresponding to the first light-emitting unit has a second width, and the groove corresponding to the first light-emitting unit has a third width, wherein at least two of the first width, the second width, and the third width are different.

18. The display terminal according to claim 17, wherein, The first light-emitting unit emits red light, the second light-emitting unit emits green light, and the third light-emitting unit emits blue light. Wherein, the first width is equal to the second width, and the first width is greater than the third width; or, the first width is equal to the third width, and the first width is greater than the second width; or, the second width is equal to the third width, and the second width is greater than the first width.

19. The display terminal according to claim 17, wherein, The plurality of refractive portions include a first sub-portion, a second sub-portion, and a third sub-portion, wherein the first sub-portion corresponds to the first light-emitting unit, the second sub-portion corresponds to the second light-emitting unit, and the third sub-portion corresponds to the third light-emitting unit; The thickness of the first sub-part and the thickness of the second sub-part are both less than the thickness of the third sub-part.

20. The display terminal according to claim 19, wherein, The thickness of the first sub-part, the second sub-part, and the third sub-part is greater than or equal to 0.5 μm and less than or equal to 1 μm.

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