Display panel and electronic device

Abstract

The present application discloses a display panel and electronic device. The display panel includes: an array substrate; a display array disposed on the array substrate, the display array including a plurality of light-emitting elements; a microlens layer disposed on the side of the display array facing away from the array substrate, the microlens layer including a plurality of microlens structures for adjusting the light emission direction of the light-emitting elements; the microlens layer including: a first light-transmitting medium layer having a hollow region, the first light-transmitting medium layer being located on the side of the display array facing away from the array substrate; a second light-transmitting medium layer, the second light-transmitting medium layer filling the hollow region and covering the surface of the first light-transmitting medium layer facing away from the display array; and light-transmitting particles filled in the second light-transmitting medium layer, the refractive index of the light-transmitting particles being greater than the refractive index of the second light-transmitting medium layer. The present application's technical solution fills the second light-transmitting medium layer of the microlens layer with light-transmitting particles. The light-transmitting particles can further enhance the scattering effect of the second light-transmitting medium layer, thereby resolving the diffraction problem of the display panel.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices, and more specifically, to a display panel and an electronic device. Background Art

[0002] With the continuous development of science and technology, more and more electronic devices with display functions are widely used in people's daily lives and work, bringing great convenience to people's daily lives and work, and becoming an indispensable tool for people today. The main component of electronic devices to achieve the display function is the display panel.

[0003] Compared with LCD panels, OLED display panels are easy to make flexible displays, can actively emit light without a backlight module, have lower power consumption, and can display a wide-angle and large field of view, making them one of the mainstream display panels today.

[0004] In existing OLED display panels, since there are many stacked film layers on the light-emitting side of the OLED light-emitting element, the interfaces between the film layers will cause a large degree of total reflection of the light emitted by the OLED light-emitting element, resulting in low light extraction efficiency. Summary of the Invention

[0005] In view of this, the present application provides a display panel and an electronic device, and the solutions are as follows:

[0006] A display panel, comprising:

[0007] array substrate;

[0008] A display array is provided on the array substrate, the display array including a plurality of light emitting elements;

[0009] A microlens layer is provided on the side of the display array away from the array substrate, and the microlens layer includes a plurality of microlens structures for adjusting the light emission direction of the light emitting element;

[0010] The microlens layer includes: a first light-transmitting medium layer having a hollow area, the first light-transmitting medium layer being located on a side of the display array facing away from the array substrate; a second light-transmitting medium layer, the second light-transmitting medium layer filling the hollow area and covering a surface of the first light-transmitting medium layer facing away from the display array; the second light-transmitting medium layer is filled with light-transmitting particles, and the refractive index of the light-transmitting particles is greater than the refractive index of the second light-transmitting medium layer.

[0011] The technical solution of the present application also provides an electronic device, comprising the above-mentioned display panel.

[0012] As can be seen from the above description, in the display panel and electronic device provided by the technical solution of this application, the display panel is provided with a microlens layer on the light-emitting side of the light-emitting element. The microlens layer includes multiple microlens structures for adjusting the light emission direction of the light-emitting element. The microlens structure can adjust the propagation direction of the light emitted by the light-emitting element, thereby reducing the total internal reflection of light at the interface between different film layers and improving the light extraction efficiency of the display panel. In addition, the second light-transmitting medium layer of the microlens layer is filled with light-transmitting particles. The refractive index of the light-transmitting particles is greater than the refractive index of the second light-transmitting medium layer. The light-transmitting particles can further enhance the scattering effect of the second light-transmitting medium layer, thereby solving the diffraction problem of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0014] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0015] Figure 1 This is a schematic diagram of the structure of a conventional OLED display panel;

[0016] Figure 2 A schematic structural diagram of a display panel provided in an embodiment of the present application;

[0017] Figure 3 This is a schematic diagram of the principle of light-transmitting particles adjusting the propagation direction of light emitted from a light-emitting element in an embodiment of the present application;

[0018] Figure 4 A graph showing the horizontal coordinate x of the incident point and the deflection angle Δθ provided in an embodiment of the present application;

[0019] Figure 5 A schematic diagram of the distribution of light-transmitting particles in a second light-transmitting medium layer provided in an embodiment of the present application;

[0020] Figure 6 A schematic structural diagram of another display panel provided in an embodiment of the present application;

[0021] Figure 7-Figure 16This is a diagram of the display effect under different haze levels provided in the embodiments of the present application;

[0022] Figure 17 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] refer to Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a conventional OLED display panel. Figure 1 The OLED display panel shown includes: an array substrate 11; a pixel definition layer 13 located on the array substrate 11, the pixel definition layer 13 having a pixel opening; a light-emitting element 12 located in the pixel opening, the light-emitting element 12 including an anode 121 located at the bottom of the pixel opening, a light-emitting functional layer 122 located on the surface of the anode 121, a cathode 123 located on the light-emitting functional layer 122, and all light-emitting elements 122 share the same cathode 123; an encapsulation layer 14 located on the surface of the cathode 123; a touch layer 15 located on the surface of the encapsulation layer 14; and a polarizer 16 located on the surface of the touch layer 15.

[0025] like Figure 1 As shown, in the OLED display panel, since the light-emitting element 12 has more stacked film layers on its light-emitting side, the interfaces between different film layers will cause total reflection of the emitted light, resulting in the light with an emission angle greater than the critical angle of total reflection being unable to be emitted, affecting the light extraction efficiency.

[0026] Furthermore, while installing a polarizer 16 on the light-emitting side of the display panel can reduce reflections of ambient light, the polarizer further reduces the light output efficiency of the display panel. While replacing the polarizer 16 with a color-block structure can reduce reflections of ambient light from the display panel while also avoiding the effect of the polarizer 16 on light output efficiency, due to the high internal reflectivity of the display panel, reflections from the color-block structure can interfere, forming diffraction fringes that affect the display.

[0027] In order to solve the above problems, embodiments of the present application provide a display panel and an electronic device, wherein the display panel includes:

[0028] array substrate;

[0029] A display array is provided on the array substrate, the display array including a plurality of light emitting elements;

[0030] A microlens layer is provided on the side of the display array away from the array substrate, and the microlens layer includes a plurality of microlens structures for adjusting the light emission direction of the light emitting element;

[0031] The microlens layer includes: a first light-transmitting medium layer having a hollow area, the first light-transmitting medium layer being located on a side of the display array facing away from the array substrate; a second light-transmitting medium layer, the second light-transmitting medium layer filling the hollow area and covering a surface of the first light-transmitting medium layer facing away from the display array; the second light-transmitting medium layer is filled with light-transmitting particles, and the refractive index of the light-transmitting particles is greater than the refractive index of the second light-transmitting medium layer.

[0032] In an embodiment of the present application, a display panel is provided with a microlens layer on the light-emitting side of the light-emitting elements. The microlens layer includes multiple microlens structures for adjusting the light emission direction of the light-emitting elements. The microlens structures can adjust the propagation direction of the light emitted by the light-emitting elements, thereby reducing the total internal reflection of light at the interface between different film layers and improving the light extraction efficiency of the display panel. Furthermore, the second light-transmitting medium layer of the microlens layer is filled with light-transmitting particles. The refractive index of the light-transmitting particles is greater than that of the second light-transmitting medium layer. The light-transmitting particles further enhance the scattering effect of the second light-transmitting medium layer, thereby resolving the diffraction problem of the display panel.

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0034] refer to Figure 2 As shown, Figure 2 A schematic structural diagram of a display panel provided in an embodiment of the present application, the display panel comprising:

[0035] array substrate 21;

[0036] A display array is provided on the array substrate 21, and the display array includes a plurality of light emitting elements 22;

[0037] A microlens layer 23 is provided on the side of the display array away from the array substrate 21, and the microlens layer 23 includes a plurality of microlens structures for adjusting the light emission direction of the light emitting element 22;

[0038] Among them, the microlens layer 23 includes: a first light-transmitting medium layer 231 having a hollow area, the first light-transmitting medium layer 231 is located on the side of the display array away from the array substrate 21; a second light-transmitting medium layer 232, the second light-transmitting medium layer 232 fills the hollow area and covers the surface of the first light-transmitting medium layer 231 away from the display array; the second light-transmitting medium layer 232 is filled with light-transmitting particles 24, and the refractive index of the light-transmitting particles 24 is greater than the refractive index of the second light-transmitting medium layer 232.

[0039] exist Figure 2 In the illustrated display panel, a microlens layer 23 is provided on the light-emitting side of the light-emitting element 22. Microlens layer 23 includes multiple microlens structures for adjusting the light emission direction of the light-emitting element 22. These microlens structures can adjust the propagation direction of light emitted by the light-emitting element 22, thereby reducing total internal reflection of light at the interfaces between different film layers and improving the light extraction efficiency of the display panel. Furthermore, the second light-transmitting medium layer 232 of the microlens layer 23 is filled with light-transmitting particles 24. The refractive index of these particles 24 is greater than that of the second light-transmitting medium layer 232. These particles 24 further enhance the scattering effect of the second light-transmitting medium layer 232, thereby addressing the diffraction problem of the display panel.

[0040] The display panel is an OLED display panel, and the light-emitting elements 22 are OLED pixels. A pixel definition layer 25 with pixel openings is provided on the array substrate 21. The OLED pixels include an anode 221 located on the array substrate 21, a light-emitting layer 222 located within the pixel opening, and a common cathode 223 located on the surface of the light-emitting layer 222.

[0041] refer to Figure 3 As shown, Figure 3 This is a schematic diagram of the principle of adjusting the propagation direction of the light emitted by the light-emitting element by the light-transmitting particles in the embodiment of the present application. The light-transmitting particles 24 are equivalent to spheres, and the light propagation is indicated by arrows. The incident angle of the light entering the light-transmitting particles 24 is θ1, and the incident angle when exiting the light-transmitting particles 24 is θ2. There is a deflection angle Δθ between the light entering the light-transmitting particles 24 and the light exiting the light-transmitting particles 24. Based on Figure 3 From the geometric relationship shown, it can be seen that the deflection angle Δθ is:

[0042]

[0043] In the relational expression (A), n1 is the refractive index of the second light-transmitting medium layer 232 , and n2 is the refractive index of the light-transmitting particles 24 .

[0044] The center of the equivalent sphere of the light-transmitting particle 24 is set as the coordinate point O, and the radius of the sphere is set as r; the X-axis is set to be parallel to the plane where the array substrate 21 is located, and the Y-axis is set to be perpendicular to the plane where the array substrate 21 is located, x is the X-axis coordinate of the incident point of the light on the light-transmitting particle 24, and y is the Y-axis coordinate of the incident point of the light on the light-transmitting particle 24, that is, the coordinates of the incident point are (x, y). Based on Figure 3 The geometric relationship shown shows that:

[0045] x 2 +y 2 =r 2 (B)

[0046]

[0047] Based on the relationship (B), it can be known that the Y-axis coordinate y of the incident point of the light on the light-transmitting particle 24 is:

[0048]

[0049] Based on equations (B), (C), and (D), we can obtain:

[0050]

[0051] Therefore:

[0052]

[0053] Substituting equation (F) into equation (A), we can see that the deflection angle Δθ of the light emitted from the light-emitting element 22 by the light-transmitting particles 24 is:

[0054]

[0055] refer to Figure 4 As shown, Figure 4 The graph of the incident point abscissa x and the deflection angle Δθ provided in the embodiment of the present application is shown in FIG. 1 , where the abscissa is the X coordinate in μm and the ordinate is the deflection angle Δθ in degrees. Figure 4 The corresponding curves are shown in FIG1 when n1=1.45, n2=1.508, and the radius r of the light-transmitting particles 24 is 0.2μm, 0.5μm, 1μm, and 1.5μm respectively. The deflection angle Δθ of the light-transmitting particles 24 with different diameters r at different incident coordinate positions x is shown in FIG1. Figure 4 The corresponding curve is shown.

[0056] refer to Figure 5 As shown, Figure 5 This is a schematic diagram of the distribution of light-transmitting particles in a second light-transmitting dielectric layer according to an embodiment of the present application, where d is the spacing between light-transmitting particles 24 in the same layer of the second light-transmitting dielectric layer 232, and T is the thickness of the second light-transmitting dielectric layer 232. Ideally, when the light-transmitting particles 24 are evenly mixed in the second light-transmitting dielectric layer 232, the spacing between light-transmitting particles 24 in the same layer (i.e., the centers of the light-transmitting particles 24 are at the same height) along the Y-axis is d.

[0057] Haze is defined as the percentage of the total transmitted light intensity that deviates by more than 2.5° from the incident light. It can be calculated that the percentage of light that deviates by more than 2.5° accounts for 50% of the total transmitted light intensity. Therefore, even when the spacing d between the light-transmitting particles 24 is 0, the maximum haze will not exceed 50%. To ensure a high haze for the light-transmitting particles 24, and thus for the second light-transmitting medium layer 232 containing the light-transmitting particles 24, and to ensure good scattering, when n1 = 1.45, n2 must be greater than or equal to 1.508.

[0058] When the deflection angle Δθ is calculated within the range of (0, r), for the same light-transmitting particle 24, it is assumed that there are n different incident points, and the horizontal coordinates of the n incident points are x1, x2, ..., x n , then [x1, x2, …, x n ]∈(0, r)

[0059] Based on the definition of haze, we have x∈[x p , x p+1 ,…,x q ], x p , x p+1 ,…,x q is the horizontal coordinate that increases in the interval (0, r). On the X-axis, the interval [x p , x q ]∈ interval (0, r), when the horizontal coordinate x∈ ​​interval [x p , x q ], the deflection angle Δθ can satisfy:

[0060]

[0061] The radius r of the light-transmitting particles 24 is very small, for example, less than 2 μm. However, the thickness T of the second light-transmitting medium layer 232 is relatively large relative to the radius r of the light-transmitting particles 24, and T is much larger than r. For example, the thickness T of the second light-transmitting medium layer 232 is greater than 20 μm. Figure 5 As shown, ideally, the content of the light-transmitting particles 24 in the second light-transmitting medium layer 232 can be controlled so that the light-transmitting particles 24 in different layers of the second light-transmitting medium layer 232 do not overlap.

[0062] The light-transmitting particles 24 in different layers are normalized into the same layer, and the distance D between the light-transmitting particles 24 after normalization satisfies:

[0063]

[0064] In the relational expression (H), the normalized spacing D between the light-transmitting particles 24 represents the distance between two adjacent vertical projections of all the light-transmitting particles 24 parallel to the plane where the array substrate 21 is located.

[0065] On a plane parallel to the array substrate 21, the filling factor ff of the light-transmitting particles 24 in the second light-transmitting medium layer 232 can be expressed as:

[0066]

[0067] Substituting equation (I) into equation (H), we have:

[0068]

[0069] The haze H of the second light-transmitting medium layer 232 having the light-transmitting particles 24 is:

[0070] H=h×ff (K)

[0071] Substituting equation (j) into equation (k), the haze H of the second light-transmitting medium layer 232 having light-transmitting particles 24 is:

[0072]

[0073] Wherein, h is the haze of the light-transmitting particles 24, and H is the equivalent haze of the second light-transmitting medium layer 232 and the light-transmitting particles 24 therein.

[0074] In the embodiment of the present application, the deflection angle Δθ satisfies the relationship (1), and the haze H satisfies the relationship (2). For the second light-transmitting medium layer 232 of a given material, n1 is a constant, and for a given light-transmitting particle 24, h, n2, and r are constants. d is related to the content of light-transmitting particles 24 in the second light-transmitting medium layer 232 per unit volume. The larger d is, the smaller the content of light-transmitting particles 24 in the second light-transmitting medium layer 232 is. Conversely, the smaller d is, the smaller the content of light-transmitting particles 24 in the second light-transmitting medium layer 232 is. Based on the corresponding relationship between the content of light-transmitting particles per unit volume and d, the value of d can be determined when the content is constant. The content of light-transmitting particles 24 in the second light-transmitting medium layer 232 can be simply determined based on the mixing ratio of the second light-transmitting medium layer 232 and the light-transmitting particles 24.

[0075] Therefore, in the embodiment of the present application, for the set second light-transmitting medium layer 232 and light-transmitting particles 24, when the content of the light-transmitting particles 24 in the second light-transmitting medium layer 232 is determined, the thickness T of the adapted second light-transmitting medium layer 232 can be calculated based on the required haze H.

[0076] As mentioned above, based on the definition of haze, the deflection angle Δθ corresponding to some light rays must satisfy:

[0077] Δθ>2.5° (3)

[0078] Since on the X-axis, the interval [x p , x q ] can make the deflection angle Δθ>2.5, and the haze h of a single light-transmitting particle is:

[0079]

[0080] As described above, for the second light-transmitting medium layer 232 and the light-transmitting particles 24, n1, n2, and r are constants, so based on equations (1) to (4), the thickness T of the second light-transmitting medium layer 232 is determined. Figure 4 The curve shows that [xp , x q ]'s maximum value x q Should be r, that is, x q =r.

[0081] From the above description, it can be seen that in the embodiment of the present application, based on equations (1) to (4), for the set second light-transmitting medium layer 232 and light-transmitting particles 24, n1, n2, and r are constants. When any two of d, H, and T are known, the value of the third one can be obtained by corresponding calculation, thereby facilitating the design of corresponding parameters in the display panel.

[0082] In the embodiment of the present application, the haze H of the second light-transmitting medium layer 232 having the light-transmitting particles 24 is greater than 50%, so as to achieve better scattering dimming performance.

[0083] When n1=1.5, n2=1.58, r=0.5um, h=0.602, d=5um=10r, based on formulas (G), (2), and (4), we have:

[0084]

[0085] Taking the requirement H>50% as an example, based on equation (5), T>24.5μm. Therefore, the thickness T of the second transparent medium layer 232 needs to be greater than 24.5μm to ensure that the overall haze of the second transparent medium layer 232 and the transparent particles 24 is greater than 50%.

[0086] If the overall haze of the second light-transmitting medium layer 232 and the light-transmitting particles 24 is required to be greater than 80%, based on the above relationship (2), we have:

[0087]

[0088] Based on the above relationship (6), we have:

[0089] h×T≥0.8T+0.8d

[0090] Since H0×d>0, based on the above relationship (7), we have:

[0091] h>0.8 (7)

[0092] Based on the relations (G), (4), and (7), we can obtain

[0093]

[0094] If the haze of a single light-transmitting particle 24 is greater than 80%, the refractive index n1 of the second light-transmitting medium layer 232 and the refractive index n2 of the light-transmitting particle 24 need to satisfy the following conditions:

[0095] n1<0.89n2

[0096] Similarly, for different H requirements, the values ​​of n1 / n2 can be referred to as shown in Table 1 below.

[0097] Table 1

[0098] Haze H <![CDATA[n1 / n2<]]> 0.1 0.989197 0.2 0.983401 0.3 0.977506 0.4 0.970676 0.5 0.961978 0.6 0.949778 0.7 0.930395 0.8 0.892891 0.9 0.782707

[0099] Based on the same calculation method as above, when H is required to be set to H0, h>H0 is required, that is,

[0100]

[0101] x q = r Substituting into the above relation (8), we have:

[0102] x p <(1-H0)r (9)

[0103] make:

[0104] x p =(1-H0)r (10)

[0105] Substituting into the above relation (G), we have:

[0106]

[0107] x q =r Substituting into the above relation (F), we have:

[0108]

[0109] Based on equations (A), (10), and (11), we have:

[0110]

[0111]

[0112]

[0113]

[0114] Therefore:

[0115]

[0116] Substituting equations (10) and (12) into equation (13), we have:

[0117]

[0118] When any two of n1, n2, and H0 are determined, a third parameter that satisfies the above relationship (14) can be selected to facilitate parameter setting in the display panel.

[0119] In the embodiment of the present application, the light-transmitting particles 24 are uniformly mixed in the second light-transmitting medium layer 232 to achieve a relatively uniform scattering effect. At the same time, in order to avoid the agglomeration problem of the light-transmitting particles 24, d>5r is set, such as d=10r.

[0120] The material of the light-transmitting particles 24 can be selected based on the requirements. For example, the light-transmitting particles 24 can be set to be metal oxide particles or diamond particles. The metal oxide includes zirconium oxide.

[0121] exist Figure 2 In the illustrated embodiment, the refractive index of the first light-transmitting dielectric layer 231 is lower than that of the second light-transmitting dielectric layer 232. The first light-transmitting dielectric layer 231 includes hollow regions corresponding one-to-one with the light-emitting elements 22. The microlens structure comprises the interface between the first light-transmitting dielectric layer 231 and the second light-transmitting dielectric layer 232 on the sidewalls of the hollow regions. This allows for a one-to-one correspondence of microlens structures to be formed on the light-emitting side of the light-emitting elements 22, improving light efficiency.

[0122] It should be noted that the implementation of the microlens structure in the embodiment of the present application is not limited to Figure 2 In the illustrated embodiment, for example, the first light-transmitting dielectric layer can be a high-refractive-index dielectric layer, and the second light-transmitting dielectric layer can be a low-refractive-index dielectric layer. In this case, the first light-transmitting dielectric layer includes multiple non-hollowed-out regions corresponding one-to-one with the light-emitting elements, as well as hollowed-out regions located between the non-hollowed-out regions. In this embodiment, multiple microlens structures corresponding one-to-one with the light-emitting elements can also be formed on the light-emitting side of the light-emitting elements. In this case, the microlens structure includes the interface between the first and second light-transmitting dielectric layers at the sidewalls of the hollowed-out regions.

[0123] refer to Figure 6 As shown, Figure 6 A schematic diagram of the structure of another display panel provided in an embodiment of the present application, Figure 2 Based on the method shown, Figure 6 The display panel shown further includes a touch electrode TP; the touch electrode TP is located on the side of the first light-transmitting medium layer 231 away from the second light-transmitting medium layer 232, and the vertical projection of the touch electrode TP on the plane where the array substrate 21 is located is located within the vertical projection of the first light-transmitting medium layer 231 on the plane where the array substrate 21 is located. Figure 6 In the illustrated embodiment, the first light-transmitting medium layer 231 and the second light-transmitting medium layer 232 having different refractive indices can be used as shadow-eliminating layers to eliminate the visibility.

[0124] In the embodiment of the present application, to reduce the display panel's reflection of ambient light, a color-resistance structure is provided between the first light-transmitting medium layer 231 and the display array 21. The color-resistance structure includes a light-shielding layer 261 having a plurality of openings corresponding one-to-one with the light-emitting elements 22; and color-resistance units 262 located within the openings, the light-transmitting color of the color-resistance units 262 matching the light-emitting color of the corresponding light-emitting elements 22. The light-shielding layer 261 may be a layer of black ink.

[0125] Combining the color resist structure and the second light-transmitting medium layer 232 mixed with light-transmitting particles 24 can not only reduce the reflection of ambient light by the display panel through the color resist structure, but also improve the dispersion problem caused by the color resist structure through the second light-transmitting medium layer 232 mixed with light-transmitting particles 24.

[0126] like Figure 6 As shown, when the reflection of ambient light is reduced by the color resist structure, the touch electrode TP can be set between the light-shielding layer 261 and the first light-transmitting medium layer 231, so that the touch electrode TP is closer to the outside of the display panel to improve the touch sensitivity. The first light-transmitting medium layer 231 and the second light-transmitting medium layer 232 can also be used as an image elimination layer to reduce the visibility of the touch electrode TP while ensuring the touch sensitivity.

[0127] In other embodiments, a polarizer may be used to reduce the reflection of ambient light by the display panel. In this case, no color resist structure is required, and a polarizer is provided on the side of the second light-transmitting medium layer 232 facing away from the display array.

[0128] like Figure 7-Figure 16 As shown, Figure 7-Figure 16 This is a diagram of the display effect under different haze levels provided in the embodiments of this application. Figure 7 This is a display effect diagram when no light-transmitting particles 24 are added to the second light-transmitting medium layer 232, that is, when the haze is 0, Figures 8-16 These are all display effects when light-transmitting particles 24 are added to the second light-transmitting medium layer 232. Figures 8-16 The following diagrams show the effects of haze values ​​of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, and 90%, respectively. It can be seen that as the overall haze of the second light-transmitting medium layer 232 containing light-transmitting particles 24 increases, the dispersion temperature improvement effect becomes increasingly better. When the haze reaches 80% or above, the dispersion problem is significantly improved.

[0129] Based on the above embodiment, another embodiment of the present application further provides an electronic device, wherein the electronic device is as follows: Figure 17 shown.

[0130] refer to Figure 17 As shown, Figure 17This is a schematic structural diagram of an electronic device provided in an embodiment of the present application. The electronic device shown includes a display panel 31 provided in the above embodiment.

[0131] In the embodiment of the present application, the electronic device may be a mobile phone, a tablet computer, a smart wearable device, or a furniture electronic device with a display function, etc. The electronic device adopts the electronic device of the above embodiment, which can improve the light efficiency and improve the dispersion problem.

[0132] The various embodiments in this specification are described in a progressive, parallel, or combined manner. Each embodiment focuses on the differences from other embodiments, and reference can be made to the corresponding similar parts between the various embodiments. With respect to the electronic device disclosed in the embodiments, since it corresponds to the display panel disclosed in the embodiments, the description is relatively simple. For relevant parts, refer to the corresponding description of the display panel.

[0133] It should be noted that in the description of this application, it should be understood that the descriptions of the drawings and embodiments are illustrative rather than restrictive. The same drawings throughout the embodiments of the specification mark the same structure. In addition, for the sake of understanding and ease of description, the drawings may exaggerate the thickness of some layers, films, panels, regions, etc. It is also understood that when an element such as a layer, film, region or substrate is referred to as being "on" another element, the element may be directly on the other element or there may be an intermediate element. In addition, "on..." refers to positioning an element on or below another element, but does not essentially mean positioning on the upper side of another element according to the direction of gravity.

[0134] The terms "upper," "lower," "top," "bottom," "inner," "outer," and the like, indicating positions or locations, are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate and simplify the description of this application. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0135] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the article or device comprising the aforementioned elements.

[0136] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that: include: array substrate; A display array is provided on the array substrate, wherein the display array includes a plurality of light emitting elements; A microlens layer is provided on a side of the display array away from the array substrate, the microlens layer comprising a plurality of microlens structures for adjusting the light emission direction of the light emitting element; The microlens layer includes: a first light-transmitting medium layer having a hollow region, the first light-transmitting medium layer being located on a side of the display array facing away from the array substrate; a second light-transmitting medium layer, the second light-transmitting medium layer filling the hollow region and covering a surface of the first light-transmitting medium layer facing away from the display array; the second light-transmitting medium layer being filled with light-transmitting particles, the refractive index of the light-transmitting particles being greater than the refractive index of the second light-transmitting medium layer; The deflection angle Δθ of the light emitted by the light-emitting element by the light-transmitting particles is: The haze H of the second light-transmitting medium layer having the light-transmitting particles is: The light-transmitting particles are equivalent to spheres, with the center of the sphere as the coordinate point, and r is the radius of the sphere; the X-axis is set to be parallel to the plane where the array substrate is located, and the Y-axis is set to be perpendicular to the plane where the array substrate is located, x is the X-axis coordinate of the incident point of the light at the light-transmitting particle, and the Y-axis coordinate of the incident point of the light at the light-transmitting particle is h is the haze of the light-transmitting particles; d is the distance between the light-transmitting particles in the same layer of the second light-transmitting medium layer; T is the thickness of the second light-transmitting medium layer; n1 is the refractive index of the second light-transmitting medium layer, and n2 is the refractive index of the light-transmitting particles.

2. The display panel according to claim 1, wherein: Based on the definition of haze, the deflection angle Δθ satisfies: Δθ>2.5°°(3) The haze h of the light-transmitting particles is: Among them, on the X-axis, the interval [x p , x q ]∈ interval (0, r); for the set second light-transmitting medium layer and the light-transmitting particles, n1, n2, r are constants, and the thickness of the second light-transmitting medium layer is determined based on equations (1) to (4).

3. The display panel according to claim 1, wherein: The light-transmitting particles are uniformly mixed in the second light-transmitting medium layer, and d>5r.

4. The display panel according to claim 1, wherein: The haze H of the second light-transmitting medium layer having the light-transmitting particles is greater than 50%.

5. The display panel according to claim 1, wherein: When H≥80%, the following relationship is satisfied: n1<0.88n2.

6. The display panel according to claim 1, wherein: The light-transmitting particles are metal oxide particles or diamond particles.

7. The display panel according to claim 1, wherein: The refractive index of the first light-transmitting medium layer is smaller than the refractive index of the second light-transmitting medium layer; The first light-transmitting medium layer has the hollow areas corresponding to the light-emitting elements one by one; the microlens structure includes an interface between the first light-transmitting medium layer and the second light-transmitting medium layer on a side wall of the hollow area.

8. The display panel according to claim 6, wherein: Also included are touch electrodes; The touch electrode is located on a side of the first light-transmitting medium layer away from the second light-transmitting medium layer, and a vertical projection of the touch electrode on the plane where the array substrate is located is located within a vertical projection of the first light-transmitting medium layer on the plane where the array substrate is located.

9. The display panel according to claim 1, wherein: A color-resistance structure is provided between the first light-transmitting medium layer and the display array; the color-resistance structure comprises: a light-shielding layer having a plurality of openings corresponding one-to-one to the light-emitting elements; and color-resistance units located within the openings, wherein the light-transmitting color of the color-resistance units matches the light-emitting color of the corresponding light-emitting elements. Alternatively, a polarizer is provided on a side of the second light-transmitting medium layer facing away from the display array.

10. An electronic device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 9.

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