Display panel, manufacturing method thereof and display device

Abstract

The invention relates to a display panel, a manufacturing method thereof and a display device, the display panel comprises a plurality of first light-emitting units and a plurality of micro lenses, and each micro lens is correspondingly arranged on the light-emitting side of the corresponding first light-emitting unit. Each micro lens is configured to convert first light emitted by the corresponding first light-emitting unit into second light, and the viewing angle range of the second light is smaller than that of the first light; the second light-emitting units are arranged at the adjacent positions of the four edges of the first light-emitting unit, and the third light-emitting units are arranged at other positions except the adjacent positions of the four edges of the first light-emitting unit; moreover, the display panel performs display by lightening the first light-emitting unit, the second light-emitting unit and / or the third light-emitting unit so as to meet different display requirements of users, such as peep-proof energy-saving display, wide-viewing-angle energy-saving display, high-resolution display and the like.

Description

[Technical field]

[0001] The present application relates to the field of display technology, and in particular to a display panel and a manufacturing method thereof, and a display device. [Background technology]

[0002] The popularity of electronic devices has enriched the channels for the public to obtain information, but it has also increased the risk of private information leakage. Vision is the main source of information for humans, and the screen of private display products being peeped at has become a serious risk of privacy leakage, thus creating a demand for display products with anti-peeping functions.

[0003] At present, the main anti-peeping solution for display products is to design an anti-peeping film on the surface of the display screen. The anti-peeping film is generally based on the optical structure of a blind, but this anti-peeping solution will reduce the brightness and light output efficiency of the display screen, thereby increasing the power consumption of the display product. In addition, this anti-peeping solution does not have the flexibility to instantly switch between the anti-peeping state and the non-anti-peeping state. [Summary of the invention]

[0004] The embodiments of the present application provide a display panel and a manufacturing method thereof, and a display device, so that a display product can be instantly switched between an anti-peeping state and a non-anti-peeping state, and the power consumption of the display product when in the anti-peeping state is reduced.

[0005] In order to solve the above problems, an embodiment of the present application provides a display panel, which includes: a plurality of first light-emitting units and a plurality of microlenses, each microlens is respectively arranged on the light-emitting side of each first light-emitting unit, and each microlens is configured to convert the first light emitted by the corresponding first light-emitting unit into a second light, and the viewing angle range of the second light is smaller than the viewing angle range of the first light; a plurality of second light-emitting units and a plurality of third light-emitting units, the second light-emitting units are arranged at positions adjacent to the four sides of the first light-emitting units, and the third light-emitting units are arranged at other positions outside the positions adjacent to the four sides of the first light-emitting units; and the display panel displays by lighting up the first light-emitting units, the second light-emitting units and / or the third light-emitting units.

[0006] The display panel has a first display mode; when the current display mode of the display panel is the first display mode, the display panel displays by lighting up all the first light-emitting units.

[0007] The display panel has a second display mode; when the current display mode of the display panel is the second display mode, the display panel performs display by lighting up all the third light-emitting units.

[0008] The display panel has a third display mode; when the current display mode of the display panel is the third display mode, the display panel displays by lighting up all the first light-emitting units, all the second light-emitting units and all the third light-emitting units.

[0009] Among them, a plurality of micro lenses are evenly distributed.

[0010] Among them, a plurality of first light-emitting units, a plurality of second light-emitting units and a plurality of third light-emitting units are arranged in an array to form a light-emitting unit array including a plurality of light-emitting unit rows and a plurality of light-emitting unit columns; a plurality of microlenses are arranged in an array to form a microlens array including a plurality of microlens rows and a plurality of microlens columns; and each microlens column is arranged corresponding to a light-emitting unit column, each microlens row is arranged corresponding to a light-emitting unit row, a first preset number of light-emitting unit columns are spaced between two light-emitting unit columns corresponding to two adjacent microlens columns, a second preset number of light-emitting unit rows are spaced between two light-emitting unit rows corresponding to two adjacent microlens rows, and the first preset number and the second preset number are both greater than or equal to 1.

[0011] The first preset number is equal to the second preset number.

[0012] In order to solve the above problems, an embodiment of the present application also provides a method for manufacturing a display panel, which includes: providing a plurality of first light-emitting units, a plurality of second light-emitting units and a plurality of third light-emitting units, wherein the second light-emitting units are arranged at positions adjacent to the four sides of the first light-emitting units, and the third light-emitting units are arranged at positions other than the positions adjacent to the four sides of the first light-emitting units; a plurality of microlenses are correspondingly formed on the light-emitting sides of the plurality of first light-emitting units, each microlens is configured to convert a first light emitted by its corresponding first light-emitting unit into a second light, the viewing angle range of the second light is smaller than the viewing angle range of the first light, and the display panel displays by lighting up the first light-emitting unit, the second light-emitting unit and / or the third light-emitting unit.

[0013] Among them, a plurality of first light-emitting units, a plurality of second light-emitting units and a plurality of third light-emitting units are provided, including: providing a driving substrate; arranging a plurality of first light-emitting units, a plurality of second light-emitting units and a plurality of third light-emitting units on the driving substrate, and the driving substrate is electrically connected to the plurality of first light-emitting units, a plurality of second light-emitting units and a plurality of third light-emitting units; forming a plurality of microlenses correspondingly on the light-emitting sides of the plurality of first light-emitting units, including: forming a lens material layer on a side of the plurality of first light-emitting units, the plurality of second light-emitting units and the plurality of third light-emitting units away from the driving substrate; etching or embossing the lens material layer to form a plurality of microlenses correspondingly on the light-emitting sides of the plurality of first light-emitting units.

[0014] In order to solve the above problems, an embodiment of the present application further provides a display device, which includes any one of the display panels described above and a driving circuit, wherein the driving circuit is used to provide a driving voltage to the display panel.

[0015] The beneficial effects of the present application are as follows: the display panel and its manufacturing method and display device provided by the present application divide the multiple light-emitting units used for display in the display panel into three categories, namely, the first light-emitting unit, the second light-emitting unit arranged at the four adjacent positions of the first light-emitting unit, and the third light-emitting unit arranged at other positions other than the four adjacent positions of the first light-emitting unit, and a microlens is correspondingly arranged on the light-emitting side of the first light-emitting unit to modulate the large viewing angle light emitted by the first light-emitting unit into a small viewing angle light. In this way, by adjusting the type of light-emitting unit lit when the display panel is displayed, the display panel can be freely switched between the anti-peeping state and the non-anti-peeping state, meeting the user's diverse display needs, such as anti-peeping energy-saving display, wide-viewing angle energy-saving display, high-resolution display, etc., thereby improving product competitiveness.

[0016] Specifically, when the display panel displays by lighting only the first light-emitting unit, since the light-emitting angle light pattern of the first light-emitting unit is significantly narrowed, it has an anti-peeping effect, and since there is no need to drive the second light-emitting unit and the third light-emitting unit, it is possible to reduce the power consumption of the display panel when the display panel is in the anti-peeping state to achieve anti-peeping energy-saving display; when the display panel displays by lighting only the third light-emitting unit, since the light-emitting angle light pattern of the third light-emitting unit does not change, it does not have an anti-peeping effect, and since there is no need to drive the first light-emitting unit and the second light-emitting unit, it is possible to reduce the power consumption of the display panel when the display panel is in the non-anti-peeping state to achieve wide-viewing angle energy-saving display, and, Since the third light-emitting unit is not adjacent to the first light-emitting unit, it is ensured that the light emitted by the third light-emitting unit will not propagate to the microlens on the light-emitting side of the first light-emitting unit, so the light-emitting angle light type of the third light-emitting unit will not be adversely affected by the microlens, thereby ensuring the wide-viewing angle energy-saving display effect of the display panel; when the display panel displays by lighting up the first light-emitting unit, the second light-emitting unit and the third light-emitting unit, due to the large number of light-emitting units that are lit, high-resolution display can be achieved, and since the microlens can modulate the large-viewing angle light emitted by the first light-emitting unit into a small-viewing angle light, the positive-viewing angle light output efficiency of the display panel is improved, so the high-resolution display power consumption of the display panel can also be reduced.

Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a schematic diagram of a top view of the structure of a display panel provided in an embodiment of the present application;

[0019] Figure 2 is along Figure 1 A schematic diagram of a cross-sectional structure taken along line O-O';

[0020] Figure 3 is along Figure 1 A schematic diagram of a cross-sectional structure taken along the line P-P' in FIG.

[0021] Figure 4 is another schematic diagram of a top view of the structure of a display panel provided in an embodiment of the present application;

[0022] Figure 5 is along Figure 4 A schematic diagram of a cross-sectional structure taken along line Q-Q';

[0023] Figure 6 is a schematic diagram of the effect when the display panel provided by the embodiment of the present application performs display by lighting only the first light-emitting unit;

[0024] Figure 7 is a schematic diagram of the effect when the display panel provided by the embodiment of the present application performs display by lighting only the third light-emitting unit;

[0025] Figure 8 is a schematic diagram of the effect of the display panel provided by the embodiment of the present application when all the light-emitting units are lit to display;

[0026] Fig. 9 is another schematic diagram of a top view of the structure of a display panel provided in an embodiment of the present application;

[0027] Fig.10 is a schematic flow chart of a method for manufacturing a display panel provided in an embodiment of the present application;

[0028] Fig.11 It is a schematic diagram of the structure of the display device provided in an embodiment of the present application. [Specific implementation method]

[0029] The following is a further detailed description of the embodiments of the present application in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the embodiments of the present application, but do not limit the scope of the embodiments of the present application. Similarly, the following examples are only some embodiments of the embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the embodiments of the present application.

[0030] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] When describing the structure of a component, when a layer or a region is referred to as being "on" or "above" another layer or another region, it may mean being directly above the other layer or another region, or having other layers or regions between it and the other layer or another region. Also, if the component is turned over, the layer or the region will be "under" or "below" the other layer or another region. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0032] In addition, the directional terms mentioned in the embodiments of the present application, such as [up], [down], [front], [back], [left], [right], [inside], [outside], [side], etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the embodiments of the present application, rather than to limit the embodiments of the present application. In each of the accompanying drawings, units with similar structures are represented by the same figure numbers. For clarity, the various parts in the drawings are not drawn to scale. In addition, certain related parts may not be shown in the drawings.

[0033] The following is a detailed description with reference to specific embodiments. It should be noted that the embodiments of the present application can be presented in various forms, some examples of which will be described below.

[0034] See also Figures 1 to 3 , Figure 1 is a schematic diagram of a top view of a display panel provided in an embodiment of the present application, Figure 2 is along Figure 1 Schematic diagram of the cross-sectional structure taken along the line O-O' in FIG. Figure 3 is along Figure 1 The schematic diagram of the cross-sectional structure taken along the line P-P' in FIG. Figures 1 to 3As shown, the display panel 10 includes a plurality of light-emitting units 11 and a plurality of microlenses 12 disposed on the light-emitting sides of the plurality of light-emitting units 11. Specifically, each of the plurality of light-emitting units 11 may correspond to a pixel in the display panel 10. In addition, the plurality of light-emitting units 11 may include a plurality of first light-emitting units 11A, a plurality of second light-emitting units 11B, and a plurality of third light-emitting units 11C, wherein the second light-emitting units 11B are disposed at positions adjacent to the four sides of the first light-emitting unit 11A, and the third light-emitting units 11C are disposed at positions other than the positions adjacent to the four sides of the first light-emitting unit 11A.

[0035] Furthermore, each microlens 12 may be correspondingly disposed on the light-emitting side of each first light-emitting unit 11A, and each microlens 12 may be configured to convert the first light L11 emitted by the corresponding first light-emitting unit 11A into the second light L12, and the viewing angle range of the second light L12 is smaller than the viewing angle range of the first light L11. Specifically, in the display panel 10, the number of microlenses 12 may be equal to the number of first light-emitting units 11A, and a microlens 12 may be correspondingly disposed on the light-emitting side of each first light-emitting unit 11A to convert the first light L11 emitted by it into the second light L12.

[0036] In this way, the multiple light-emitting units 11 used for display in the display panel 10 are divided into three categories, namely, the light-emitting unit 11 corresponding to the microlens 12 (i.e., the first light-emitting unit 11A), the light-emitting unit 12B adjacent to the first light-emitting unit 11A (i.e., the second light-emitting unit 11B), and the light-emitting unit 11C not adjacent to the first light-emitting unit 11A (i.e., the third light-emitting unit 11C).

[0037] Furthermore, for ease of understanding and explanation, the viewing angle of the light can be defined as the angle formed by the light turning to the normal line N of the display panel 10 at an acute angle, wherein if the turning is clockwise, the corresponding viewing angle of the light is a positive acute angle, and if the turning is counterclockwise, the corresponding viewing angle of the light is a negative acute angle. The normal line N of the display panel 10 is parallel to the thickness direction of the display panel 10 (that is, the thickness of the display panel 10). Figure 2 in the Z direction).

[0038] In this embodiment, if Figure 2 As shown, in the display panel 10, the first light emitting units 11A and the microlenses 12 may correspond one to one. Moreover, each microlens 12 may be specifically configured to transform the first light L11 emitted by a corresponding first light emitting unit 11A into the second light L12. The first light L11 emitted by the first light emitting unit 11A may specifically be the light emitted by the first light emitting unit 11 and propagated to the corresponding microlens 12.

[0039] Specifically, Figure 2 As shown, for each first light-emitting unit 11A, the microlens 12 corresponding to the first light-emitting unit 11A is arranged on the light-emitting side of the first light-emitting unit 11A, and after the first light L11 emitted by the first light-emitting unit 11A enters the microlens 12 corresponding to the first light-emitting unit 11A, the microlens 12 corresponding to the first light-emitting unit 11A will deflect the large viewing angle light in the first light L11 toward the direction close to the normal N of the display panel 10, so as to reduce the viewing angle range of the first light L11 and obtain the second light L12.

[0040] The viewing angle range of the first light L11 may be -β1 to +β1, and the viewing angle range of the second light L2 may be -β2 to +β2, wherein β1 and β2 are both greater than 0°, and β2 is less than β1. In addition, the wide viewing angle light may refer to the light with a viewing angle ≥50° and the light with a viewing angle ≤-50°.

[0041] Furthermore, it should be noted that the present embodiment does not limit the specific structure of the microlens 12 , and the microlens 12 can be used to convert the light with a relatively large viewing angle emitted by the corresponding first light-emitting unit 11 into the light with a relatively small viewing angle.

[0042] In some embodiments, Figure 2 As shown, for each microlens 12, the microlens 12 may have a focusing surface 121, and the focusing surface 121 of the microlens 12 is configured to focus the first light L11 emitted by the first light-emitting unit 11A corresponding to the microlens 12 and incident on the focusing surface 121 of the microlens 12 in a direction close to the normal N of the display panel 10, so as to obtain the second light L12.

[0043] Specifically, for each first light-emitting unit 11A, after the first light L11 emitted by the first light-emitting unit 11A enters the corresponding microlens 121, at least part of the first light L11 (for example, the wide-angle light) will be refracted toward the direction close to the normal N of the display panel 10 at the focusing surface 121 of the microlens 12 corresponding to the first light-emitting unit 11A, so as to narrow the viewing angle range of the first light L11 and obtain the second light L12.

[0044] In some examples, for each first light emitting unit 11A, part of the first light L11 emitted by the first light emitting unit 11A (for example, the normal viewing angle light) can directly pass through without refraction after being incident on the light-collecting surface 121 of the microlens 12 corresponding to the first light emitting unit 11A. That is, the viewing angle of the part of the light will not change after passing through the microlens 12. The normal viewing angle light may refer to the light parallel to the normal line N.

[0045] It should be noted that the present embodiment does not limit the specific shape of the focusing surface 121. The focusing surface 121 can be used to convert the light with a relatively large viewing angle range emitted by the corresponding first light-emitting unit 11A into light with a relatively small viewing angle range. In some examples, the focusing surface 121 may include at least one curved surface and / or at least one inclined plane.

[0046] In some embodiments, Figure 2 As shown, the focusing surface 121 of the microlens 12 can be specifically a surface of the microlens 12 protruding away from the corresponding first light emitting unit 11A. In addition, the cross-sectional shape of the microlens 12 parallel to the normal line N can be an isosceles trapezoid, an isosceles triangle or an arcuate shape.

[0047] In some examples, such as Figure 2 As shown, the microlens 12 may be specifically a convex lens, and the light-collecting surface 121 of the microlens 12 may be specifically a convex surface of the convex lens.

[0048] In some examples, the microlens 12 may be specifically a conical lens, and the light-collecting surface 121 of the microlens 12 may be specifically a side surface of the conical lens.

[0049] In some examples, the microlens 12 may be specifically a truncated cone-shaped lens, and the light-collecting surface 121 of the microlens 12 may be specifically a side surface and a top surface of the truncated cone-shaped lens.

[0050] In some specific embodiments, the plane where the above-mentioned multiple light-emitting units 11 are located can be defined as the first plane, the first plane is perpendicular to the normal N, and the orthographic projection of the focusing surface 121 of the microlens 12 on the first plane can completely cover the corresponding first light-emitting unit 11A to ensure that the light emitted by the first light-emitting unit 11A can be transmitted to the corresponding microlens 12 as much as possible, thereby improving the light extraction efficiency of the first light-emitting unit 11A.

[0051] Furthermore, in a specific implementation, the orthographic projection of the center of the focusing surface 121 of the microlens 12 on the first plane may overlap with the center of the corresponding first light emitting unit 11A to ensure the intensity uniformity of light emitted from the first light emitting unit 11A at all angles.

[0052] In some examples, the orthographic projection of the focusing surface 121 of the microlens 12 on the first plane can be completely offset from the second light-emitting unit 11B and the third light-emitting unit 11C to reduce the adverse effect of the microlens 12 on the light output angle light pattern of the second light-emitting unit 11B and the third light-emitting unit 11C, thereby ensuring the display effect of the second light-emitting unit 11B and the third light-emitting unit 11C in the display panel 10.

[0053] In some specific embodiments, Figure 4 and Figure 5 As shown, the display panel 10 may include a lens layer 15, and the plurality of microlenses 12 may be provided by the lens layer 15. Specifically, the lens layer 15 is disposed on the light-emitting side of the plurality of light-emitting units 11, and may include a plurality of convex lenses 15A, wherein each convex lens 15A of the plurality of convex lenses 15A may correspond to one of the plurality of microlenses 12.

[0054] In some examples, such as Figure 4 and Figure 5 As shown, the lens layer 15 may further include a lens base 15B, the lens base 15B is disposed between the plurality of light emitting units 11 and the plurality of convex lenses 15A, and the lens base 15B and the plurality of convex lenses 15A may be integrally formed. Specifically, each of the plurality of convex lenses 15A may be formed by the surface of the lens base 132 facing away from the plurality of light emitting units 11, at a position corresponding to each first light emitting unit 11A, protruding in a direction away from the plurality of first light emitting units 11A.

[0055] In this embodiment, if Figures 6 to 8 As shown, the display panel 10 displays by lighting up the first light-emitting unit 11A, the second light-emitting unit 11B and / or the third light-emitting unit 11C. In addition, in order to understand and illustrate the relevant embodiments described in this application, when the display panel 10 displays, the light-emitting unit 11A is lit. Figures 6 to 8 The unlit light emitting unit 11 is shown as a white filled circle in FIG. Figures 6 to 8 It is illustrated as a black filled circle in the figure.

[0056] Specifically, the display panel 10 can display by lighting up only all or part of the first light emitting units 11A (eg, Figure 6 Alternatively, the display may be performed by lighting up only all or part of the third light emitting units 11C (as shown in FIG. Figure 7 ), or can be displayed by lighting up all the light-emitting units 11 (as shown Figure 8 In this way, by adjusting the type of the light-emitting unit 11 that is lit when the display panel 10 is displaying, it is possible to switch between different display modes, and different display modes correspond to different display effects and application scenarios, thereby meeting the diverse display needs of users, such as anti-peeping energy-saving display, wide-viewing angle energy-saving display, high-resolution display, etc., and improving product competitiveness.

[0057] In some embodiments, the display panel 10 may have a first display mode, a second display mode, and a third display mode. Furthermore, the display mode of the display panel 10 may be adjusted to the first display mode, or may be adjusted to the second display mode, or may be adjusted to the third display mode. In this way, the display panel 10 may be freely switched between multiple display modes to better meet different display requirements of users and improve product competitiveness.

[0058] Specifically, Figure 6 As shown, when the current display mode of the display panel 10 is the first display mode, the display panel 10 can display by lighting up only all the first light-emitting units 11A. In this way, since a microlens 12 is correspondingly arranged on the light-emitting side of the first light-emitting unit 11A, and the microlens 12 can modulate the large viewing angle light emitted by the first light-emitting unit 11A into a small viewing angle light, the display viewing angle of the display panel can be narrowed to achieve the purpose of anti-peeping. At the same time, since there is no need to drive the second light-emitting unit 11B and the third light-emitting unit 11C, the display resolution of the display panel 10 is reduced accordingly, which helps to reduce the power consumption of the display panel 10 in the anti-peeping state and realize anti-peeping energy-saving display. Therefore, by adjusting the display mode of the display panel 10 to the first display mode, it can be suitable for scenarios where users have high requirements for privacy protection and power consumption reduction, but do not have high requirements for display clarity, such as scenarios where users use display products such as mobile phones, tablets or laptops to read text or browse web pages.

[0059] Specifically, Figure 7As shown, when the current display mode of the display panel 10 is the second display mode, the display panel 10 can display by lighting up only all the third light-emitting units 11C. In this way, since the microlens 12 is not provided on the light-emitting side of the third light-emitting unit 11C, and the third light-emitting unit 11C is not adjacent to the first light-emitting unit 11A, it is ensured that the light L21 with a large viewing angle emitted by the third light-emitting unit 11C will not propagate to the microlens 12 on the light-emitting side of the first light-emitting unit 11A, so that the light-emitting angle light type of the third light-emitting unit 11C will not change due to the influence of the microlens 12, and it is ensured that the horizontal and vertical light types of the third light-emitting unit 11C along the display plane are consistent, so that the display panel 10 can achieve wide-viewing angle display and ensure the wide-viewing angle display effect. At the same time, since there is no need to drive the first light-emitting unit 11A and the second light-emitting unit 11B, the display resolution of the display panel 10 is reduced accordingly, which helps to reduce the power consumption of the display panel 10 in the non-peep-proof state and achieve wide-viewing angle energy-saving display. Therefore, by adjusting the display mode of the display panel 10 to the second display mode, it can be suitable for scenarios where users have high demands for power consumption reduction but do not have high requirements for privacy protection and display clarity, for example, users use display products such as mobile phones, tablets or laptops to read text or browse web pages in power saving mode.

[0060] Specifically, Figure 8 As shown, when the current display mode of the display panel 10 is the third display mode, the display panel 10 can display by lighting up all the light-emitting units 11. In this way, since the microlens 12 is correspondingly arranged on the light-emitting side of the first light-emitting unit 11A, and the microlens 12 is not arranged on the light-emitting side of the second light-emitting unit 11B and the third light-emitting unit 11C, the microlens 12 arranged on the light-emitting side of the first light-emitting unit 11A can increase the light-emitting efficiency of the display panel 10 at the normal viewing angle, but will not significantly change the display viewing angle of the display panel 10, thereby being able to reduce the power consumption of the display panel 10, but having no anti-peeping effect. At the same time, since the number of light-emitting units 11 that are lit when the display panel 10 is displaying is large, the display resolution of the display panel 10 is correspondingly increased, which helps to enhance the display clarity of the display panel 10 in the non-anti-peeping state and achieve high-definition enhanced display. Therefore, by adjusting the display mode of the display panel 10 to the third display mode, it can be suitable for scenarios where users have high requirements for display clarity and high requirements for power consumption reduction, but do not have high requirements for privacy protection, such as scenarios where users use display products such as mobile phones, tablets, laptops, or head-mounted AR / VR display devices to view pictures, watch videos, or play games.

[0061] In some embodiments, Figure 1 or Figure 4As shown, in the display panel 10 , the plurality of microlenses 12 may be evenly distributed so that the effects of the microlenses 12 on light output from various regions of the display panel 10 are the same or substantially the same, thereby ensuring light output uniformity from various regions of the display panel 10 .

[0062] In some embodiments, Figure 1 or Figure 4 As shown, in the display panel 10, the above-mentioned multiple light-emitting units 11 (that is, the above-mentioned multiple first light-emitting units 11A, the above-mentioned multiple second light-emitting units 11B and the above-mentioned multiple third light-emitting units 11C) can be arranged in an array to form a light-emitting unit array including multiple light-emitting unit rows and multiple light-emitting unit columns. The above-mentioned multiple microlenses 12 can be arranged in an array to form a microlens array including multiple microlens rows and multiple microlens columns. In addition, each microlens column can be arranged corresponding to a light-emitting unit column, each microlens row can be arranged corresponding to a light-emitting unit row, and the two light-emitting unit columns corresponding to two adjacent microlens columns can be separated by a first preset number of light-emitting unit columns, and the two light-emitting unit rows corresponding to two adjacent microlens rows can be separated by a second preset number of light-emitting unit rows. Among them, the first preset number and the second preset number are both greater than or equal to 1.

[0063] Correspondingly, the third light-emitting unit 11C may be specifically a light-emitting unit 11 in which the microlens 12 is not provided on the light-emitting side of the display panel 10 and which is not adjacent to the first light-emitting unit 11A in both the row direction X and the column direction Y; the second light-emitting unit 11B may be specifically a light-emitting unit 11 in which the microlens 12 is not provided on the light-emitting side of the display panel 10 and which is adjacent to the first light-emitting unit 11A in both the row direction X and the column direction Y.

[0064] In this way, it is ensured that not only all the first light-emitting units 11A in the display panel 10 are arranged in an array, but also all the third light-emitting units 11C in the display panel 10 are arranged in an array, and the third light-emitting units 11C in the display panel 10 are neither adjacent to the first light-emitting units 11A in the row direction X nor adjacent to the column direction Y, thereby effectively preventing the light L21 emitted by the third light-emitting unit 11C from propagating to the microlens 12 set on the light-emitting side of the first light-emitting unit 11A, thereby ensuring that the light-emitting angle light pattern of the third light-emitting unit 11C will not be affected by the microlens 12, so as to improve the display effect of the third light-emitting unit 11C.

[0065] In some embodiments, the first preset number and the second preset number may be equal so that all the first light-emitting units 11A in the display panel 10 are evenly distributed, thereby ensuring the uniformity of light emission in each area of ​​the display panel when the first light-emitting units 11A in the display panel 10 are displayed.

[0066] In some specific embodiments, the first preset number and the second preset number may both be equal to 1, so that not only all the first light-emitting units 11A in the display panel 10 are evenly distributed, but also all the third light-emitting units 11C in the display panel 10 are evenly distributed. Therefore, not only when the first light-emitting units 11A in the display panel 10 are displaying, the uniformity of light emission in each area of ​​the display panel 10 can be ensured, but also when the third light-emitting units 11C in the display panel 10 are displaying, the uniformity of light emission in each area of ​​the display panel 10 can be ensured, which is beneficial to improve the display effect of the display panel 10 in various display modes.

[0067] In other specific embodiments, Fig. 9 As shown, the first preset number and the second preset number may both be equal to 2. Moreover, it can be understood that by increasing the values ​​of the first preset number and the second preset number, the number ratio of the third light emitting units 11C in the display panel 10 can be increased, so that when the third light emitting units 11C in the display panel 10 are displayed, it is beneficial to realize high-resolution display of the display panel 10.

[0068] In the above embodiment, the light emitting unit 11 may be a light emitting diode (LED), such as a red LED, a green LED or a blue LED, etc. In some specific embodiments, the light emitting unit 11 may be a micro-light emitting diode (Micro-LED), such as a red Micro-LED, a green Micro-LED or a blue Micro-LED, etc.

[0069] In the above embodiment, if Figure 2 , Figure 3 or Figure 5 As shown, the display panel 10 may further include a driving substrate 13, wherein the driving substrate 13 may be located on a side of the plurality of light-emitting units 11 away from the plurality of microlenses 12. Furthermore, the driving substrate 13 is electrically connected to each of the plurality of light-emitting units 11, and the driving substrate 13 is capable of controlling the light-emitting units 13 to emit light.

[0070] Specifically, the driving substrate 13 can receive a light emitting control signal, and in response to the light emitting control signal, control the first light emitting unit 11A, the second light emitting unit 11B and / or the third light emitting unit 11C in the display panel 10 to emit light, so as to realize the display function of the display panel 10 .

[0071] In some examples, the driving substrate 13 may include a substrate, and a plurality of gate lines, a plurality of data lines, and a plurality of pixel areas defined by the plurality of gate lines and the plurality of data lines disposed on one side of the substrate. The plurality of pixel areas may include a red pixel area, a green pixel area, and a blue pixel area, etc. The plurality of light-emitting units 11 may correspond to the plurality of pixel areas one by one, and each light-emitting unit 11 may be fixed to the corresponding pixel area in the driving substrate 13 by welding.

[0072] In some examples, the driving substrate 13 may be specifically an array substrate, such as a thin film transistor (TFT) array substrate.

[0073] In some specific embodiments, Figure 1 , Figure 2 , Figure 3 or Figure 5 As shown, the display panel 10 may further include an encapsulation layer 14, which is disposed between the driving substrate 13 and the plurality of microlenses 12 and may cover the plurality of light-emitting units 11 to protect the light-emitting units 11. In some examples, the encapsulation layer 14 may be made of a light-transmitting material such as a transparent polymer.

[0074] Specifically, the surface of the encapsulation layer 14 facing away from the driving substrate 13 may be a flat surface. This helps to reduce the process difficulty of manufacturing the microlenses 12 on the light-emitting sides of the plurality of light-emitting units 11, thereby reducing production costs.

[0075] As can be seen from the above, the display panel provided in the embodiment of the present application divides the multiple light-emitting units used for display in the display panel into three categories, namely, the first light-emitting unit, the second light-emitting unit arranged at the adjacent positions around the first light-emitting unit, and the third light-emitting unit arranged at other positions outside the adjacent positions around the first light-emitting unit, and a microlens is correspondingly arranged on the light-emitting side of the first light-emitting unit to modulate the large viewing angle light emitted by the first light-emitting unit into a small viewing angle light. In this way, by adjusting the type of light-emitting unit lit when the display panel is displayed, the display panel can be freely switched between the anti-peeping state and the non-anti-peeping state, meeting the user's diverse display needs, such as anti-peeping energy-saving display, wide-viewing angle energy-saving display, high-resolution display, etc., thereby improving product competitiveness.

[0076] See also Fig.10 , Fig.10 The flowchart of the method for manufacturing the display panel provided in the embodiment of the present application is also shown in Figures 1 to 5 , Figures 1 to 51 is a schematic diagram of the structure of the display panel provided in the embodiment of the present application during the preparation process. This embodiment takes the formation of the display panel 10 as an example to illustrate the preparation method. The specific process of the method for making the display panel 10 can be as follows:

[0077] Step S11: provide a plurality of first light emitting units 11A, a plurality of second light emitting units 11B and a plurality of third light emitting units 11C, wherein the second light emitting units 11B are arranged at positions adjacent to the four sides of the first light emitting unit 11A, and the third light emitting units 11C are arranged at positions other than the positions adjacent to the four sides of the first light emitting unit 11A.

[0078] The above step S11 may specifically include:

[0079] Step S111 : providing a driving substrate 13 .

[0080] Step S112 : disposing a plurality of light emitting units 11 on the driving substrate 13 .

[0081] The driving substrate 13 is electrically connected to each of the plurality of light emitting units 11 , and the driving substrate 13 can control the light emitting unit 12 to emit light.

[0082] Specifically, the multiple light-emitting units 11 can be divided into three categories, namely, a first light-emitting unit 11A, a second light-emitting unit 11B arranged at adjacent positions around the first light-emitting unit 11A, and a third light-emitting unit 11C arranged at other positions other than the adjacent positions around the first light-emitting unit 11A.

[0083] Moreover, in a specific implementation, the above-mentioned multiple light-emitting units 11 can be transferred to one side of the driving substrate 13 through mass transfer technology, and then the above-mentioned multiple light-emitting units 11 can be welded and fixed on the driving substrate 13 by welding, so as to achieve fixing the above-mentioned multiple light-emitting units 11 on one side of the driving substrate 13.

[0084] In some embodiments, the light-emitting unit 11 may be specifically a Micro-LED. Specifically, a plurality of Micro-LEDs may be formed on a single crystal silicon substrate, and then the plurality of Micro-LEDs on the single crystal silicon substrate may be cut to obtain a plurality of independent Micro-LEDs, and then each Micro-LED may be transferred to a corresponding area (i.e., a corresponding pixel area) on the driving substrate 14 by welding.

[0085] Step S12: A plurality of microlenses 12 are correspondingly formed on the light-emitting sides of the plurality of first light-emitting units 11A, each microlens 12 is configured to convert the first light L11 emitted by the corresponding first light-emitting unit 11A into the second light L12, the viewing angle range of the second light L12 is smaller than the viewing angle range of the first light L11, and the display panel 10 displays by lighting up the first light-emitting unit 11A, the second light-emitting unit 11B and / or the third light-emitting unit 11C.

[0086] Specifically, the plurality of microlenses 12 may be formed on the light-emitting sides of the plurality of light-emitting units 11 by photolithography, laser etching, inkjet printing or nanoimprinting.

[0087] In some embodiments, the formation of the plurality of microlenses 12 corresponding to the light-emitting sides of the plurality of first light-emitting units 11A may specifically include: forming a lens material layer on the light-emitting sides of the plurality of light-emitting units 11, that is, on the side of the plurality of first light-emitting units 11A, the plurality of second light-emitting units 11B, and the plurality of third light-emitting units 11C away from the driving substrate 13; etching or embossing the lens material layer to form a lens layer 15 (such as a plurality of convex lenses 15A) Figure 4 and Figure 5 As shown), each convex lens 15A corresponds to a microlens 12, so that a plurality of microlenses 12 are correspondingly formed on the light-emitting sides of the plurality of first light-emitting units 11A.

[0088] Specifically, a thin film deposition process can be used to form a lens material layer on the light-emitting side of the above-mentioned multiple light-emitting units 11, and then an imprinting template having an imprinting pattern can be aligned with the lens material layer and imprinted to transfer the imprinting pattern on the imprinting template to the lens material layer, thereby obtaining an imprinted lens material layer; then, the imprinted lens material layer can be cured, and the imprinting template can be removed to obtain a cured lens material layer (i.e., the above-mentioned lens layer 15 including multiple convex lenses 15A and a lens base 15B), and the surface of the cured lens material layer is locally raised away from the above-mentioned multiple light-emitting units 11 to form a plurality of protrusions (i.e., the above-mentioned convex lenses 15A), and each protrusion is a microlens 12.

[0089] Furthermore, after obtaining the cured lens material layer, the remaining portion of the cured lens material layer except the raised portion may be removed by etching process to avoid light loss of the light emitting unit caused by the remaining portion.

[0090] It should be noted that the specific structure of the display panel 10 in this embodiment can refer to the specific implementation in the above-mentioned embodiment of the display panel, so it will not be repeated here.

[0091] As can be seen from the above, the manufacturing method of the display panel of this embodiment provides a plurality of first light-emitting units, a plurality of second light-emitting units and a plurality of third light-emitting units, wherein the second light-emitting units are arranged at positions adjacent to the four sides of the first light-emitting units, and the third light-emitting units are arranged at other positions outside the positions adjacent to the four sides of the first light-emitting units; a plurality of microlenses are correspondingly formed on the light-emitting sides of the plurality of first light-emitting units, each microlens is configured to convert the first light emitted by the corresponding first light-emitting unit into a second light, and the viewing angle range of the second light is smaller than the viewing angle range of the first light, and the display panel displays by lighting up the first light-emitting unit, the second light-emitting unit and / or the third light-emitting unit, thereby realizing the division of the plurality of light-emitting units used for display in the display panel into three categories, and by adjusting the type of light-emitting units lit when the display panel is displayed, the display panel can be freely switched between the anti-peeping state and the non-anti-peeping state, which can meet the diverse display needs of users, such as anti-peeping energy-saving display, wide-viewing angle energy-saving display, high-resolution display, etc., thereby improving the competitiveness of the product.

[0092] See also Fig.11 , Fig.11 is a schematic diagram of the structure of the display device provided in the embodiment of the present application. Fig.11 As shown, the display device 200 includes a driving circuit and a display panel 201 of any one of the above embodiments, and the driving circuit is used to provide a driving voltage to the display panel 201 .

[0093] The display panel 201 includes a plurality of first light-emitting units, a plurality of second light-emitting units, a plurality of third light-emitting units and a plurality of microlenses, wherein the second light-emitting units are arranged at positions adjacent to the four sides of the first light-emitting units, the third light-emitting units are arranged at positions other than the positions adjacent to the four sides of the first light-emitting units, and each microlens is respectively arranged on the light-emitting side of each first light-emitting unit, and each microlens is configured to convert the first light emitted by the corresponding first light-emitting unit into a second light, and the viewing angle range of the second light is smaller than the viewing angle range of the first light. In addition, the display panel displays by lighting up the first light-emitting unit, the second light-emitting unit and / or the third light-emitting unit to meet the diverse display needs of users.

[0094] In some embodiments, the above-mentioned display device 200 may also include a display control circuit, which is used to: receive user instructions, and in response to user instructions, control the first light-emitting unit, the second light-emitting unit and / or the third light-emitting unit in the display panel 201 to perform work output, so as to realize the display panel 201 by lighting up the first light-emitting unit, the second light-emitting unit and / or the third light-emitting unit for display.

[0095] The user instruction is used to indicate the current display mode of the display panel 201 , and may be input by the user through a virtual key or a physical key of the display device 200 .

[0096] In some embodiments, the display panel 201 may have three display modes, namely, a first display mode, a second display mode, and a third display mode.

[0097] Specifically, when the user instruction indicates that the current display mode of the display panel 201 is the first display mode, the above-mentioned display control circuit can respond to the user instruction to control the first light-emitting unit in the display panel 201 to work and output, while the second light-emitting unit and the third light-emitting unit in the display panel 201 stop working and output, so as to realize that the display panel 201 displays by only lighting up the first light-emitting unit.

[0098] Specifically, when the user instruction indicates that the current display mode of the display panel 201 is the second display mode, the above-mentioned display control circuit can respond to the user instruction to control the third light-emitting unit in the display panel 201 to work and output, while the first light-emitting unit and the second light-emitting unit in the display panel 201 stop working and output, so as to achieve the display panel 201 to display by only lighting up the third light-emitting unit.

[0099] Specifically, when the user instruction indicates that the current display mode of the display panel 201 is the second display mode, the above-mentioned display control circuit can respond to the user instruction to control the first light-emitting unit, the second light-emitting unit and the third light-emitting unit in the display panel 201 to perform working output, so as to realize the display panel 201 to display by lighting up the first light-emitting unit, the second light-emitting unit and the third light-emitting unit.

[0100] It should be noted that the display device provided in the embodiment of the present application, since it is provided with the display panel provided in the embodiment of the present application, can achieve the beneficial effects that can be achieved by any display panel provided in the embodiment of the present application. Please refer to the previous embodiments for details, which will not be repeated here.

[0101] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: include: A plurality of first light-emitting units and a plurality of microlenses, wherein each of the microlenses is correspondingly disposed on a light-emitting side of each of the first light-emitting units, and each of the microlenses is configured to convert a first light emitted by the corresponding first light-emitting unit into a second light, wherein a viewing angle range of the second light is smaller than a viewing angle range of the first light; A plurality of second light-emitting units and a plurality of third light-emitting units, wherein the second light-emitting units are arranged at positions adjacent to four sides of the first light-emitting unit, and the third light-emitting units are arranged at positions other than the positions adjacent to four sides of the first light-emitting unit; Furthermore, the display panel performs display by lighting up the first light emitting unit, the second light emitting unit and / or the third light emitting unit.

2. The display panel according to claim 1, characterized in that: The display panel has a first display mode; When the current display mode of the display panel is the first display mode, the display panel performs display by lighting up all the first light-emitting units.

3. The display panel according to claim 1, characterized in that: The display panel has a second display mode; When the current display mode of the display panel is the second display mode, the display panel performs display by lighting up all the third light-emitting units.

4. The display panel according to claim 1, characterized in that: The display panel has a third display mode; When the current display mode of the display panel is the third display mode, the display panel performs display by lighting up all of the first light-emitting units, all of the second light-emitting units, and all of the third light-emitting units.

5. The display panel according to claim 1, characterized in that: The plurality of micro lenses are evenly distributed.

6. The display panel according to claim 5, characterized in that: The plurality of first light emitting units, the plurality of second light emitting units and the plurality of third light emitting units are arranged in an array to form a light emitting unit array including a plurality of light emitting unit rows and a plurality of light emitting unit columns; The plurality of microlenses are arranged in an array to form a microlens array including a plurality of microlens rows and a plurality of microlens columns; Furthermore, each of the microlens columns is arranged corresponding to one of the light-emitting unit columns, each of the microlens rows is arranged corresponding to one of the light-emitting unit rows, a first preset number of light-emitting unit columns are spaced between two of the light-emitting unit columns corresponding to two adjacent microlens columns, and a second preset number of light-emitting unit rows are spaced between two of the light-emitting unit rows corresponding to two adjacent microlens rows, and both the first preset number and the second preset number are greater than or equal to 1.

7. The display panel according to claim 6, characterized in that: The first preset number is equal to the second preset number.

8. A method for manufacturing a display panel, characterized in that: include: Providing a plurality of first light-emitting units, a plurality of second light-emitting units and a plurality of third light-emitting units, wherein the second light-emitting units are arranged at positions adjacent to four sides of the first light-emitting units, and the third light-emitting units are arranged at positions other than the positions adjacent to the four sides of the first light-emitting units; A plurality of microlenses are correspondingly formed on the light emitting sides of the plurality of first light emitting units, each of the microlenses is configured to convert the first light emitted by the corresponding first light emitting unit into a second light, the viewing angle range of the second light is smaller than the viewing angle range of the first light, and the display panel displays by lighting up the first light emitting unit, the second light emitting unit and / or the third light emitting unit.

9. The method for manufacturing a display panel according to claim 8, characterized in that: The providing of a plurality of first light emitting units, a plurality of second light emitting units and a plurality of third light emitting units comprises: Providing a drive substrate; A plurality of first light emitting units, a plurality of second light emitting units and a plurality of third light emitting units are arranged on the driving substrate, and the driving substrate is electrically connected to the plurality of first light emitting units, the plurality of second light emitting units and the plurality of third light emitting units; The plurality of micro lenses are correspondingly formed on the light emitting sides of the plurality of first light emitting units, including: forming a lens material layer on a side of the plurality of first light emitting units, the plurality of second light emitting units, and the plurality of third light emitting units away from the driving substrate; The lens material layer is etched or embossed to form a plurality of micro lenses correspondingly on the light emitting sides of the plurality of first light emitting units.

10. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 7 and a driving circuit, wherein the driving circuit is used to provide a driving voltage to the display panel.

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