Display panels and electronic devices

Abstract

This application discloses a display panel and an electronic device. The display panel includes: an array substrate; a display array located on the surface of the array substrate, the display array including multiple light-emitting elements; and a microlens layer disposed on the side of the display array away from the array substrate, having multiple microlens structures. The microlens layer includes: a first light-transmitting medium layer with low refractive index, located on the side of the display array away from the array substrate, and having multiple hollow areas; a second light-transmitting medium layer with high refractive index, having optical blocks filling the hollow areas; the optical blocks extending outside the hollow areas, overlapping with the first light-transmitting medium layer on the side away from the array substrate; the microlens structure includes optical blocks and the hollow areas filled by the optical blocks; in a direction perpendicular to the array substrate, the optical blocks of at least two microlens structures have different thicknesses in the overlapping portion. This application can improve the reflection effect of the display panel on ambient light and enhance the image display effect.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and more specifically, to a display panel and an electronic device. Background Technology

[0002] With the continuous development of science and technology, more and more electronic devices with display functions are being 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.

[0003] The main component that enables display functions in electronic devices is the display panel. OLED (Organic Light Emitting Diode) display panels are currently the mainstream display panels used in electronic devices. In OLED display panels, microlens (MLP) structures can be placed on the light-emitting side to improve light emission efficiency at the forward viewing angle and reduce power consumption.

[0004] Microlens structures are generally made by two layers of light-transmitting medium with different refractive indices, which increases the reflective interface on the light-emitting side of the display panel and affects the image display effect. Summary of the Invention

[0005] In view of this, this application provides a display panel and an electronic device, the solution of which is as follows:

[0006] This application provides a display panel, including:

[0007] Array substrate;

[0008] A display array located on an array substrate, the display array comprising multiple light-emitting elements;

[0009] The microlens layer disposed on the side of the display array away from the array substrate has multiple microlens structures;

[0010] The microlens layer includes: a first light-transmitting medium layer with low refractive index, located on the side of the display array away from the array substrate, and having multiple hollow areas; a second light-transmitting medium layer with high refractive index, having optical blocks that fill the hollow areas; the optical blocks extending to the outside of their hollow areas, forming an overlapping portion with the first light-transmitting medium layer on the side away from the array substrate; the microlens structure includes optical blocks and the hollow areas filled by the optical blocks; in a direction perpendicular to the array substrate, the optical blocks of at least two microlens structures have different thicknesses in the overlapping portion.

[0011] In the aforementioned display panel, a microlens layer is disposed on the light-emitting side of the display array. The microlens layer has a microlens structure, which can improve the light emission efficiency of the display panel at the front viewing angle and reduce the power consumption of the display panel. Moreover, the optical blocks of at least two microlens structures have different thicknesses in the overlapping part. By designing the differential thickness of the optical blocks in the overlapping part, the reflection effect of the display panel on ambient light can be improved, thereby enhancing the image display effect.

[0012] Another aspect of this application provides an electronic device, including the aforementioned display panel.

[0013] In the aforementioned electronic device, by employing the aforementioned display panel and through the differentiated design of the thickness of the overlapping portion of the optical blocks, the reflection effect of the display panel on ambient light can be improved, thereby enhancing the image display effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0016] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of another display panel structure provided in an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0020] Figure 5 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0021] Figure 6This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0022] Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0023] The embodiments of this application will now be clearly and completely described 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.

[0024] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this application can be combined with each other without contradiction.

[0025] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] refer to Figure 1 As shown, Figure 1 This application provides a schematic diagram of the structure of a display panel, which includes:

[0027] Array substrate 11;

[0028] A display array located on the array substrate 11, the display array including a plurality of light-emitting elements 12;

[0029] A microlens layer is disposed on the side of the display array away from the array substrate 11, and the microlens layer has multiple microlens structures 13.

[0030] The microlens layer includes: a first light-transmitting medium layer 21 with low refractive index, located on the side of the display array away from the array substrate 11, and having multiple hollow areas; a second light-transmitting medium layer 22 with high refractive index, having optical blocks 221 filling the hollow areas; the optical blocks 221 extending outside the hollow areas and overlapping with the first light-transmitting medium layer 21 on the side away from the array substrate 11 to form an overlapping portion 2210; the microlens structure 13 includes the optical blocks 221 and the hollow areas filled by the optical blocks 221; in the direction perpendicular to the array substrate 11, at least two optical blocks 221 have different thicknesses H in the overlapping portion 2210.

[0031] In the display panel provided in this embodiment, a microlens layer is provided on the light-emitting side of the display array. The microlens layer has a microlens structure 13. The microlens structure 13 can improve the light emission efficiency of the display panel at the front viewing angle and reduce the power consumption of the display panel. Moreover, the optical blocks 221 of at least two microlens structures 13 have different thicknesses H in the overlapping portion 2210. Through the differentiated design of the thickness H of the optical blocks 221 in the overlapping portion 2210, the reflection effect of the display panel on ambient light can be improved, thereby improving the image display effect.

[0032] In conventional display panels, the thickness of the second light-transmitting medium layer 22 is uniform, meaning that the optical blocks 221 in each microlens structure 13 have the same thickness in the overlapping portion 2210. Therefore, in different microlens structures 13, the optical path difference caused by the overlapping portion 2210 is the same, and the interface between the overlapping portion 2210 and the underlying first light-transmitting medium layer 21 reflects ambient light in the same wavelength band, leading to color shift. In this embodiment, by differentiating the thickness H of the optical blocks 221 in the overlapping portion 2210, the overlapping portions 2210 with different thicknesses H can reflect ambient light in different wavelength bands, thus solving the color shift problem caused by all microlens structures 13 having the same reflection wavelength band in the overlapping portion 2210.

[0033] Optionally, the microlens layer can be configured to include multiple microlens structures 13 that correspond one-to-one with the light-emitting elements 12. By setting microlens structures 13 on the light-emitting side of each light-emitting element 12, the light emission efficiency at the positive viewing angle can be improved and the power consumption can be reduced.

[0034] For light-emitting elements 12 with the same emission color, the optical blocks 221 on the light-emitting side of the light-emitting element 12 have the same thickness H in the overlapping portion. The optical blocks 221 on the light-emitting side of the same color can be formed synchronously, which facilitates the fabrication of the optical blocks 221. Moreover, for light-emitting elements 12 with the same emission color, the microlens structure 13 on the light-emitting side has the same reflection effect on ambient light in the overlapping portion 2210, which facilitates the adjustment of the ambient light reflection effect.

[0035] When the microlens layer includes multiple microlens structures 13 corresponding one-to-one with the light-emitting elements 12, for light-emitting elements 12 with different emission colors, the thickness H of the optical block 221 on the light-emitting side of the light-emitting element 12 is different in the overlapping portion 2210. By providing microlens structures 13 with different thicknesses H in the overlapping portion 2210 on the light-emitting side for light-emitting elements 12 with different emission colors, the microlens structures 13 corresponding to different emission colors of the light-emitting elements 12 can have different reflection effects on ambient light in the overlapping portion 2210, avoiding the color shift problem caused by different microlens structures 13 having the same reflection effect on a single color of visible light in the overlapping portion 2210.

[0036] The display array includes multiple light-emitting elements 12, including: a first light-emitting element for emitting a first primary color light; a second light-emitting element for emitting a second primary color light; and a third light-emitting element for emitting a third primary color light. Among the first, second, and third primary color lights, one is red light, another is blue light, and the remaining one is green light.

[0037] The thickness H of the microlens structures 13 corresponding to at least two of the first light-emitting element, the second light-emitting element, and the third light-emitting element can be set to be different in the overlapping portion 2210, so as to improve the reflection effect of the display panel on ambient light.

[0038] exist Figure 1 In the illustrated configuration, three light-emitting elements 12 with different emitting colors are shown, namely a first light-emitting element, a second light-emitting element, and a third light-emitting element. Among the first, second, and third light-emitting elements, the thickness H of the corresponding microlens structures 13 in the overlapping portion 2210 is different for each element, but the thickness H of the corresponding microlens structures 13 in the overlapping portion 2210 is the same for both elements. Figure 1 As shown, the thickness H of the microlens structure 13 corresponding to the left and right light-emitting elements 12 is the same in the overlapping part 2210, and the thickness H of the microlens structure 13 corresponding to the middle light-emitting element 12 in the overlapping part 2210 is larger.

[0039] In this embodiment of the application, in order to better avoid the same reflection effect of different microlens structures 13 on the single color visible light band in the overlapping part 2210, the thickness H of the microlens structures 13 corresponding to any two of the first light-emitting element, the second light-emitting element and the third light-emitting element is set to be different in the overlapping part 2210.

[0040] refer to Figure 2 As shown, Figure 2 This is a schematic diagram of another display panel structure provided in an embodiment of this application. Figure 2 The display panel shown includes three light-emitting elements 12 with different emitting colors: a first light-emitting element, a second light-emitting element, and a third light-emitting element. The thickness H of the microlens structure 13 corresponding to any two of the first, second, and third light-emitting elements differs in the overlapping portion 2210.

[0041] As described above, the multiple light-emitting elements 12 in the display array include at least: a first light-emitting element for emitting a first primary color light; a second light-emitting element for emitting a second primary color light; and a third light-emitting element for emitting a third primary color light. The optical block 221 on the output side of the first light-emitting element has a first thickness h1 in the overlapping portion 2210. The first thickness h1 enables the two light-transmitting dielectric layers to increase the reflection of the first primary color light and decrease the reflection of other primary color lights at the interface of the overlapping portion 2210.

[0042] For the microlens structure 13 on the light-emitting side of the first light-emitting element, by adjusting the value of the first thickness h1, the optical path difference at the interface between the overlapping portion 2210 and the first light-transmitting medium layer 21 can be adjusted, thereby increasing the reflection of the first primary color light at this interface and reducing the reflection of the second and third primary color lights. In this way, on the light-emitting side of the first light-emitting element, the increased reflection effect of the correspondingly set microlens structure 13 on the first primary color light in the ambient light can be used to compensate for the intensity of the first primary color light emitted by the first light-emitting element, improve the brightness of the display panel, reduce the energy consumption of the display panel, and at the same time reduce the reflection of the second and third primary color lights in the ambient light, thereby reducing the impact of the second and third primary color lights on the display effect of the first light-emitting element.

[0043] (1)

[0044] (2)

[0045] Where, n H λ is the refractive index of the second light-transmitting medium layer 22. λ is the incident light wavelength, and m is a positive integer. Based on optical principles, at the interface between the high and low refractive indices formed by the overlap of the two light-transmitting medium layers, if H satisfies the above formula (1), the reflection effect of light with wavelength λ can be achieved; if it satisfies the above formula (2), the light transmission effect of light with wavelength λ can be achieved.

[0046] Based on the above formulas (1) and (2), the refractive index n of the second light-transmitting medium layer 22 is... H At a given time, by adjusting the thickness H, the interference of light with wavelength λ at the interface between high and low refractive indices can be either destructive or enhanced, thereby achieving increased reflection of visible light in the desired wavelength band and reduced reflection of visible light in the set wavelength band.

[0047] (3)

[0048] (4)

[0049] (5)

[0050] Wherein, λ1, λ2, and λ3 are the wavelengths of the first primary color light, the second primary color light, and the third primary color light, respectively; m1, m2, and m3 are all positive integer constants. According to the above description, if the thickness H of the overlapping part 2210 is equal to H1, satisfying the above formula (3), the reflection enhancement effect of the first primary color light with wavelength λ1 can be achieved; if the thickness H of the overlapping part 2210 is equal to H2, satisfying the above formula (4), the reflection reduction effect of the second primary color light with wavelength λ2 can be achieved; if the thickness H of the overlapping part 2210 is equal to H3, satisfying the above formula (5), the reflection reduction effect of the third primary color light with wavelength λ3 can be achieved.

[0051] Based on this, in this embodiment, the absolute values ​​of the deviations of the first thickness h1 from H1, from H2, and from H3 are all set to be less than a set threshold. Thus, the microlens structure 13 corresponding to the light-emitting side of the first light-emitting element, at the interface between the overlapping portion 2210 and the first light-transmitting medium layer 21, can increase the reflection of the first primary color light and decrease the reflection of the second and third primary color lights.

[0052] When the absolute value of the deviation between the first thickness h1 and H1 is less than a set threshold, the first thickness h1 can be equal to or approximately equal to H1, achieving an anti-reflection effect on the first primary color light with wavelength λ1. The smaller the absolute value of this deviation, the better the anti-reflection effect on the first primary color light. When the absolute value of the deviation between the first thickness h1 and H2 is less than a set threshold, the first thickness h1 can be equal to or approximately equal to H2, achieving an anti-reflection effect on the second primary color light with wavelength λ2. The smaller the absolute value of this deviation, the better the anti-reflection effect on the second primary color light. When the absolute value of the deviation between the first thickness h1 and H3 is less than a set threshold, the first thickness h1 can be equal to or approximately equal to H3, achieving an anti-reflection effect on the third primary color light with wavelength λ3. The smaller the absolute value of this deviation, the better the anti-reflection effect on the third primary color light.

[0053] The absolute value of the deviation between the first thickness h1 and H1 is the absolute value of the difference between h1 and H1; the absolute value of the deviation between the first thickness h1 and H2 is the absolute value of the difference between h1 and H2; and the absolute value of the deviation between the first thickness h1 and H3 is the absolute value of the difference between h1 and H3.

[0054] The aforementioned threshold can be set based on requirements, such as not exceeding 80 nm, 30 nm, 20 nm, or 10 nm. It is readily understood that the smaller the threshold, the smaller the absolute value of polarization, and the better the desired anti-reflection and anti-reflection effects. This threshold can be set based on requirements, and the embodiments of this application do not impose any limitations on it.

[0055] The optical block 221 on the light-emitting side of the second light-emitting element can also be configured to have a second thickness h2 in the overlapping portion 2210. The second thickness h2 enables the two light-transmitting dielectric layers to increase the reflection of the second primary color light and decrease the reflection of other primary color lights at the interface of the overlapping portion 2210. Similarly, on the light-emitting side of the second light-emitting element, the reflection of the second primary color light in the ambient light can be increased to compensate for the intensity of the second primary color light emitted by the second light-emitting element, thereby improving the brightness of the display panel and reducing the energy consumption of the display panel. At the same time, it can also reduce the reflection of the first and third primary color lights in the ambient light, thereby reducing the impact of the first and third primary color lights on the display effect of the second light-emitting element.

[0056] The optical block 221 on the light-emitting side of the third light-emitting element can also be configured to have a third thickness h3 in the overlapping portion 2210. The third thickness h3 enables the two light-transmitting dielectric layers to increase the reflection of the third primary color light and decrease the reflection of other primary color lights at the interface of the overlapping portion 2210. Similarly, on the light-emitting side of the third light-emitting element, the reflection of the third primary color light in the ambient light can be increased, compensating for the intensity of the third primary color light emitted by the third light-emitting element, improving the brightness of the display panel, reducing the energy consumption of the display panel, and also reducing the reflection of the first and second primary color lights in the ambient light, thus reducing the impact of the first and second primary color lights on the display effect of the third light-emitting element.

[0057] The principle behind the thickness of the overlapping portion 2210 will be further explained below, using data from Tables 1 and 2. In Tables 1 and 2, the refractive index n of the second light-transmitting medium layer 22 is... H The three primary colors are blue light (B) with a dominant wavelength of 460nm, green light (G) with a dominant wavelength of 550nm, and red light (R) with a dominant wavelength of 630nm.

[0058] Table 1 Data table of thickness H satisfying formula (2)

[0059]

[0060] Table 1 shows the relevant data on the thickness H of the overlapping portion 2210 of each primary color light during increased transmission when m ranges from 1 to 10.

[0061] Table 2 Data table of thickness H satisfying formula (1)

[0062]

[0063] Table 2 shows the relevant data on the thickness H of the overlapping portion 2210 of each primary color light when the reflection is increased, as m ranges from 1 to 10.

[0064] As shown in Tables 1 and 2, the thickness H varies depending on the color of light, whether the goal is to achieve anti-reflection or anti-reflection effects. A single thickness H cannot satisfy the anti-reflection or anti-reflection requirements for all colors.

[0065] To achieve better anti-reflection effect, taking red light R as an example, for the microlens structure 13 on the light-emitting side of the light-emitting element emitting red light R, the thickness H of its overlapping part 2210 needs to maximize the reflectivity of red light R, while minimizing the reflectivity of green light G and blue light B.

[0066] Based on the data in Table 2, when m takes different values, the data in the column below the red light R in Table 2 (i.e., thickness H is 93 nm, 278 nm, 463 nm, 649 nm, 834 nm, 1019 nm, ...) can all satisfy the above formula (1) to achieve the maximum reflectivity of red light R. Let these thicknesses H be H Rmax H Rmax Satisfying the above formula (1) results in the maximum reflectivity for red light.

[0067] To minimize the reflectivity of green light G and blue light B, the thickness needs to satisfy the above formula (2) to maximize the transmittance of green light G and blue light B, thereby minimizing the reflection of green light G and blue light B. The data in Table 1 satisfy the above formula (2). When the value of m is different, the data in the column below blue light B in Table 1 (i.e., the thickness H is 135nm, 271nm, 406nm, 541nm, 676nm, 812nm, ...) can all satisfy the above formula (2), achieving the maximum transmittance of red light B, that is, the minimum reflectivity of blue light B; the data in the column below green light G in Table 1 (i.e., the thickness H is 162nm, 324nm, 485nm, 647nm, 809nm, 971nm, ...) can all satisfy the above formula (2), achieving the maximum transmittance of green light G, that is, the minimum reflectivity of green light G. Corresponding to the data on the thickness H below green light G and blue light B in Table 2, the thickness coordinates with the lowest reflectivity for green light G and blue light B, and the smallest difference in thickness H between green light G and blue light B in Table 2, are (136, 162), (271, 324), (406, 485), (676, 647), (812, 809), (947, 971)... These thickness coordinates are set as (H... Gmin H Bmin ), H Gmin and H Bmin All satisfy the above formula (2), and the thickness of the overlapping part with the smallest reflectivity of green light G and blue light B is respectively.

[0068] Based on thickness coordinates (H) Gmin H BminThe thickness of the overlapping portion on the light-emitting side of the light-emitting element 12 emitting red light R is designed such that the difference between the designed overlapping portion thickness and a certain thickness data in the column below red light R in Table 2 does not exceed a set threshold. Therefore, for the microlens structure 13 on the light-emitting side of the light-emitting element 12 emitting red light R, the thickness H of its overlapping portion 2210 can increase the reflection of red light R and decrease the reflection of green light G and blue light B. Thus, the smaller the difference between the designed overlapping portion thickness and a certain thickness data in the column below red light R in Table 2, the smaller the increase in reflection of red light R; the smaller the difference between the designed overlapping portion thickness and a certain thickness data in the column below blue light B in Table 1, the smaller the decrease in ... For example, based on the aforementioned thickness coordinates (271, 324), (406, 485), (676, 647), (812, 809), (947, 971) and a set threshold, the thicknesses of the overlapping portions on the light-emitting element 12 emitting red light are selected to be 300 nm, 440 nm, 660 nm, 800 nm, and 959 nm, respectively. As mentioned above, the set threshold can be 30 nm, 20 nm, or 10 nm.

[0069] Similarly, for the microlens structure 13 on the light-emitting side of the light-emitting element 12 emitting green light G, based on Table 1, the thickness coordinates with the lowest reflectivity for red light R and blue light B, and the smallest difference in thickness H between red light R and blue light B in Table 1, are (185, 271), (371, 406), (556, 541), (741, 676), ... . Combined with the set threshold, the thickness of the overlapping part on the light-emitting side of the light-emitting element 12 emitting green light G is designed to correspond to these thickness coordinates as 230 nm, 290 nm, 550 nm, and 690 nm, respectively. By adopting these designed thicknesses, the overlapping part 2210 on the light-emitting side of the light-emitting element 12 emitting green light G can achieve increased reflection of green light G and reduced reflection of red light R and blue light B.

[0070] Similarly, for the microlens 13 on the light-emitting side of the light-emitting element 12 emitting blue light B, based on the thickness coordinates in Table 1 corresponding to the minimum reflectivity of red light R and green light G, and the small difference in thickness H between red light R and green light G, the thickness coordinates are (371, 324), (741, 809), (1112, 1132), (1297, 1294), ..., and combined with the set threshold, the thickness of the overlapping part on the light-emitting side of the light-emitting element 12 emitting blue light B is designed to correspond to these thickness coordinates as 350 nm, 770 nm, 1130 nm, and 1290 nm respectively. By adopting these designed thicknesses, the overlapping part 2210 on the light-emitting side of the light-emitting element 12 emitting blue light B can achieve increased reflection of blue light B and reduced reflection of red light R and green light G.

[0071] The refractive index n of the first light-transmitting medium layer 21 can be set according to requirements. L The refractive index n of the second light-transmitting dielectric layer 22 H , such as n H For 1.7, n L The refractive index is 1.45. This application does not limit the refractive index of the two light-transmitting media layers. It is readily apparent that if the refractive index of the light-transmitting media layers changes, the thickness data in Tables 1 and 2 will also change accordingly.

[0072] exist Figure 1 and Figure 2 In the illustrated method, the boundary between adjacent optical blocks 221 can be set to be without gaps. For example, by designing the thickness of the overlapping part 2210 of each optical block 221 in the microlens layer, the reflection of other ambient light emitted above each light-emitting element can be reduced, and the reflection of light of the same color emitted by the corresponding light-emitting element can be increased. This reduces ambient light interference and increases display brightness.

[0073] refer to Figure 3 As shown, Figure 3 This is a schematic diagram of another display panel provided in an embodiment of this application. Based on the above embodiments, Figure 3 In the illustrated configuration, a gap is provided between adjacent optical blocks 221. Because of this gap, the area at the interface between the first light-transmitting medium layer 21 and the second light-transmitting medium layer 22 is reduced, thereby decreasing the reflection of ambient light from this interface.

[0074] It should be noted that, Figure 3 The method shown is in Figure 2 Based on the method shown, by setting a gap between two adjacent optical blocks 221, it is obviously also possible to... Figure 1 Based on the method shown, a gap is set between two adjacent optical blocks 221, which will not be described in detail in this embodiment.

[0075] In this embodiment, the width of each optical block 221 in the overlapping portion 2210 can be set to be the same. The width of the overlapping portion 2210 is its lateral dimension in the direction parallel to the array substrate 11. Having each optical block 221 with the same width in the overlapping portion 2210 facilitates fabrication using the same width standard.

[0076] Optionally, at least two optical blocks 221 may have different widths in the overlapping portion 2210. In this embodiment, the display panel is an OLED display panel, and the light-emitting element is an OLED. The light-emitting elements of different colors have different opening sizes in the direction parallel to the array substrate 11. By setting the width of the optical blocks 221 in the overlapping portion 2210 to be related to the opening size of the corresponding light-emitting element 12, the display panel can better adjust the reflection of ambient light, avoid color shift caused by reflected light, and maintain good hue neutrality in the overall reflective environment of the display panel.

[0077] In this embodiment of the application, as described above, the microlens layer includes a plurality of microlens structures 13 corresponding one-to-one with the light-emitting elements 12. For light-emitting elements 12 with the same opening size, the optical blocks 221 on the light-emitting side of the light-emitting element 12 have the same width in the overlapping portion 2210, which facilitates the uniform fabrication of optical blocks 221 on light-emitting elements 12 with the same opening size.

[0078] For light-emitting elements 12 with different opening sizes, the width of the optical block 221 on the light-emitting side of the light-emitting element 12 in the overlapping part 2210 is different.

[0079] In some embodiments of this application, for a light-emitting element 12 with a first opening size, the optical block 221 on the light-emitting side of the light-emitting element 12 has a first width in the overlapping portion 2210; for a light-emitting element 12 with a second opening size, the optical block 221 on the light-emitting side of the light-emitting element 12 has a second width in the overlapping portion 2210; the first opening size is larger than the second opening size, and the first width is smaller than the second width. That is, the larger the opening size of the light-emitting element 12, the smaller the width of its light-emitting side optical block 221 in the overlapping portion 2210. This allows light-emitting elements 12 with different opening sizes to have overlapping portions 2210 with the same or similar areas, so that the area of ​​the overlapping portion 2210 and the vertically opposite interface of the first light-transmitting medium layer 21 is the same or similar, which enables the overall reflective environment of the display panel to maintain hue neutrality.

[0080] refer to Figure 4 As shown, Figure 4This is a schematic diagram of another display panel structure provided in an embodiment of this application. The display panel shown in this embodiment further includes a black matrix 14 located between the microlens layer and the display array. Each black matrix 14 has a light emission port corresponding to each light-emitting element 12. A color resist 15 is disposed within each light emission port, and the color of the color resist 15 is the same as the color of the light emitted from the corresponding light-emitting element 12. The color of each color resist 15 extends beyond its respective light emission port and covers the side of the black matrix 14 facing away from the array substrate 11. There are no gaps between adjacent color resists 15. By setting the black matrix 14 and the color resist 15, the color resist 15 can reflect light of the same color in ambient light and absorb light of other colors, thereby reducing the reflection of ambient light. Figure 4 The method shown is in Figure 3 The display panel shown is equipped with a color resist 15 and a black matrix 14. In other methods, it is also possible to... Figures 1-3 Based on any of the above methods, color resist 15 and black matrix 14 are set, which will not be described in detail in the embodiments of this application.

[0081] Optionally, in this embodiment, a gap is provided between adjacent optical blocks 221, and the display panel has a color resist 15 and a black matrix 14. In this way, the reflection of ambient light by the display panel can be improved by the overlapping part 2210, the color resist 15 and the black matrix 14. While reducing the reflection of ambient light, the display brightness can also be improved by using ambient light of the same color as the light emitted by the light-emitting element 12 in the light-emitting area of ​​the light-emitting element 12.

[0082] When there is a gap between adjacent optical blocks 221 and the display panel has a color resist 15 and a black matrix 14, the vertical projection of the gap between the optical blocks 221 onto the plane where the black matrix 14 is located is within the black matrix 14. Thus, ambient light incident based on the gap can be absorbed by the black matrix 14 and the color resist 15 covering its surface.

[0083] refer to Figure 5 As shown, Figure 5 This is a schematic diagram of another display panel structure provided in an embodiment of this application. Based on any of the above embodiments, the display panel further includes an organic layer 16 covering the microlens layer. The organic layer can planarize the surface of the microlens layer, solving the problem of poor surface planarization caused by the different thicknesses of different optical blocks 221 in the overlapping portion 2210. It can be... Figures 1-4 An organic layer 16 is set on any basis, not limited to Figure 4 The organic layer 16 is set in the configuration shown. (Reference) Figure 6 As shown, Figure 6This is a schematic diagram of another display panel structure provided in an embodiment of this application. In this method, the thickness of the first light-transmitting medium layer 21 covered by the overlapping portion 2210 is negatively correlated with the thickness of the overlapping portion 2210. The larger the thickness H of the overlapping portion 2210, the smaller the thickness of the corresponding first light-transmitting medium layer 21. This can make the surface of the microlens layer away from the array electrode plate 11 have better flatness, thereby reducing the thickness of the organic layer 16 and thus reducing the thickness of the display panel.

[0084] refer to Figure 7 As shown, Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device includes the display panel 31 described in any of the above embodiments.

[0085] The electronic device can be any device with a display function, such as a smart wearable device, a mobile phone, a tablet computer, or a laptop computer. By using the display panel 31 provided in the above embodiment, the electronic device can reduce the impact of ambient light on the display effect and improve image display quality.

[0086] The various embodiments in this specification are described in a progressive, parallel, or combined manner. Each embodiment focuses on its differences from other embodiments, and similar or identical parts between embodiments can be referred to interchangeably. For the electronic devices disclosed in the embodiments, since they correspond to the display panels disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the descriptions of the display panels.

[0087] It should be noted that, in the description of this application, the accompanying drawings and embodiments are illustrative rather than restrictive. The same reference numerals throughout the embodiments identify the same structures. Additionally, for ease of understanding and description, the thicknesses of some layers, films, panels, regions, etc., may be exaggerated in the drawings. 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 intermediate elements. Furthermore, "on" means positioning an element on or below another element, but does not inherently mean positioning it above another element according to the direction of gravity.

[0088] The terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for 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. Therefore, they should not be construed as limitations on this application. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the middle.

[0089] It should also be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or apparatus that includes the aforementioned element.

[0090] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded 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 located on the array substrate, the display array comprising a plurality of light-emitting elements; The microlens layer disposed on the side of the display array away from the array substrate has multiple microlens structures; The microlens layer comprises: a first light-transmitting medium layer with low refractive index, located on the side of the display array away from the array substrate, and having multiple hollow areas; a second light-transmitting medium layer with high refractive index, having optical blocks filling the hollow areas; the optical blocks extending outside the hollow areas and overlapping with the first light-transmitting medium layer on the side away from the array substrate; the microlens structure includes the optical blocks and the hollow areas filled by the optical blocks; in a direction perpendicular to the array substrate, at least two optical blocks of the microlens structure have different thicknesses in the overlapping portion; The plurality of light-emitting elements include at least: a first light-emitting element for emitting a first primary color light; a second light-emitting element for emitting a second primary color light; and a third light-emitting element for emitting a third primary color light; wherein the optical block on the output side of the first light-emitting element has a first thickness in the overlapping portion, the first thickness enabling the two light-transmitting medium layers to increase the reflection of the first primary color light and decrease the reflection of other primary color lights at the interface of the overlapping portion; ； ； ； Where, n H λ1, λ2, and λ3 are the wavelengths of the first primary color light, the second primary color light, and the third primary color light, respectively; m1, m2, and m3 are all positive integer constants; the absolute values ​​of the deviations of the first thickness from H1, from H2, and from H3 are all less than a set threshold.

2. The display panel according to claim 1, characterized in that, The microlens layer includes multiple microlens structures that correspond one-to-one with the light-emitting element; For light-emitting elements that emit the same color, the optical blocks on the light-emitting side of the light-emitting element have the same thickness in the overlapping portion.

3. The display panel according to claim 1, characterized in that, The microlens layer includes multiple microlens structures that correspond one-to-one with the light-emitting element; For light-emitting elements with different emission colors, the optical blocks on the light-emitting side of the light-emitting element have different thicknesses in the overlapping portion.

4. The display panel according to claim 1, characterized in that, There is a gap between adjacent optical blocks.

5. The display panel according to claim 4, characterized in that, At least two of the optical blocks have different widths in the overlapping portion.

6. The display panel according to claim 5, characterized in that, The microlens layer includes multiple microlens structures that correspond one-to-one with the light-emitting element; For light-emitting elements with the same opening size, the optical blocks on the light-emitting side of the light-emitting element have the same width in the overlapping portion.

7. The display panel according to claim 5, characterized in that, The microlens layer includes multiple microlens structures that correspond one-to-one with the light-emitting element; For light-emitting elements with different opening sizes, the width of the optical block on the light-emitting side of the light-emitting element is different in the overlapping portion.

8. The display panel according to claim 1, characterized in that, For a light-emitting element having a first opening size, the optical block on the light-emitting side of the light-emitting element has a first width in the overlapping portion; For a light-emitting element having a second opening size, the optical block on the light-emitting side of the light-emitting element has a second width in the overlapping portion; The first opening size is larger than the second opening size, and the first width is smaller than the second width.

9. The display panel according to claim 1, characterized in that, The thickness of the first light-transmitting medium layer covering the overlapping portion is negatively correlated with the thickness of the overlapping portion.

10. An electronic device, characterized in that, Includes the display panel as described in any one of claims 1-9.

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