Display panel and display device

Abstract

The invention discloses a display panel and a display device, and the display panel comprises a plurality of light-emitting units which are arranged in multiple rows along a column direction; the first lens structure comprises a plurality of first lens units arranged corresponding to the multiple rows of light-emitting units respectively, and each first lens unit is configured to gather light emitted by the corresponding row of light-emitting units in the direction close to a first gathering face where the center line of the first lens unit is located; and the central points of the light-emitting units in the same row are positioned on the same side of the corresponding first gathering surface in the column direction.

Description

Display panel and display device Technical Field

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

[0002] Micro light-emitting diodes (Micro LEDs) have the advantages of high brightness, high luminous efficiency and low power consumption, and have therefore become a research hotspot in the field of display technology.

[0003] However, since the micro-LED chips used for display have a large light-emitting viewing angle, this will result in the micro-LED chips being unable to meet the narrow viewing angle display requirements in some special displays that require a small viewing angle of the display screen, such as in-vehicle or airborne display applications. Technical issues

[0004] The present application provides a display panel and a display device, so that a micro light emitting diode display can meet the narrow viewing angle display requirements of special displays. Technical Solutions

[0005] In order to solve the above problems, an embodiment of the present application provides a display panel, which includes: a plurality of light-emitting units arranged in multiple rows along the column direction; a first lens structure, arranged on the light-emitting side of the plurality of light-emitting units, the first lens structure including a plurality of first lens units, the plurality of first lens units being respectively arranged corresponding to the multiple rows of light-emitting units, each first lens unit having a center line extending along the row direction, the row direction intersecting with the column direction, each first lens unit being configured to focus the light emitted by the light-emitting units in the corresponding row in the direction of a first focusing plane close to the center line thereof, and the center points of the light-emitting units in the same row are located on the same side of the corresponding first focusing plane in the column direction.

[0006] The first focusing surface is a plane parallel to the row direction and perpendicular to the plane where the multiple light-emitting units are located.

[0007] The first lens unit is a first cylindrical lens, and the cross-section of the first cylindrical lens perpendicular to the row direction is arcuate or polygonal.

[0008] The first cylindrical lens is a partial cylinder, and a generatrix of the partial cylinder is parallel to the row direction.

[0009] In which, multiple light-emitting units are arranged in multiple columns along the row direction; the display panel also includes: a second lens structure, which is arranged on a side of the first lens structure away from the multiple light-emitting units, and the second lens structure includes multiple second lens units, and the multiple second lens units are arranged corresponding to the multiple columns of light-emitting units, each second lens unit has a center line extending along the column direction, and each second lens unit is configured to focus the light emitted by the corresponding column of light-emitting units in the direction of the second focusing surface close to its center line.

[0010] The second focusing surface is a plane parallel to the column direction and perpendicular to the plane where the plurality of light-emitting units are located.

[0011] The center points of the light emitting units in the same column are located in the second focusing plane where the center line of the corresponding second lens unit is located; or the center points of the light emitting units in the same column are located on the same side of the second focusing plane where the center line of the corresponding second lens unit is located.

[0012] The included angle between the second gathering surface and the first gathering surface is between 85 degrees and 100 degrees.

[0013] The second lens unit is a second cylindrical lens, and the cross-section of the second cylindrical lens perpendicular to the column direction is arcuate or polygonal.

[0014] The second cylindrical lens is a prism, and edges of the prism are parallel to the column direction.

[0015] The plurality of second lens units are arranged at intervals; the display panel further comprises a light shielding layer located in the interval regions between the plurality of second lens units.

[0016] The orthographic projection of the light incident surface of each first lens unit on the plane where the multiple light emitting units are located covers the light emitting units in the corresponding row.

[0017] Each first lens unit includes a light incident surface and a light exit surface. The light exit surface of each first lens unit is a curved surface that is convex relative to its light incident surface in a direction away from the light-emitting unit in the corresponding row. The maximum convex height of the light exit surface of each first lens unit relative to its light incident surface and the maximum width of its light incident surface in the column direction satisfy the following relationship: 1 / 10<D / H<2, where H represents the maximum convex height of the light exit surface of each first lens unit relative to its light incident surface, and D represents the maximum width of the light incident surface of each first lens unit in the column direction.

[0018] In order to solve the above problems, an embodiment of the present application further provides a display device, which includes a driving circuit and any one of the above display panels, wherein the driving circuit is used to provide a driving voltage to the display panel. Beneficial effects

[0019] The beneficial effects of the present application are as follows: the display panel and display device provided by the present application are configured by arranging a first lens structure on the light-emitting side of a plurality of light-emitting units arranged in multiple rows, and the first lens structure includes a plurality of first lens units, and the plurality of first lens units are respectively arranged corresponding to the multiple rows of light-emitting units, each first lens unit having a center line extending along the row direction, and each first lens unit is configured to gather the light emitted by the corresponding row of light-emitting units in the direction of the first focusing plane close to the center line thereof, and the center points of the light-emitting units in the same row are located on the same side of the corresponding first focusing plane in the column direction, thereby enabling narrow viewing angle display of the display panel and enabling the micro light-emitting diode display panel to be suitable for vehicle-mounted or airborne display applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] The components in the drawings are not drawn to scale and are intended only to illustrate the principles of the present application. To facilitate illustration and description of some portions of the present application, corresponding portions in the drawings may be exaggerated, i.e., made larger relative to other components in an exemplary device actually manufactured according to the present application. In the drawings, identical or similar technical features or components are denoted by identical or similar reference numerals.

[0022] FIG1 is a schematic diagram of the exploded structure of a display panel provided in an embodiment of the present application;

[0023] FIG2 is a perspective structural diagram of the first lens structure in FIG1 ;

[0024] FIG3 is a schematic cross-sectional view of a display panel according to an embodiment of the present application;

[0025] FIG4 is another exploded structural diagram of a display panel provided in an embodiment of the present application;

[0026] FIG5 is a perspective structural diagram of the second lens structure in FIG4 ;

[0027] FIG6 is another schematic cross-sectional view of a display panel according to an embodiment of the present application;

[0028] FIG7 is a schematic diagram of a pixel arrangement of a display panel provided in an embodiment of the present application;

[0029] FIG8 is a schematic structural diagram of a display device provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0030] The present application will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only intended to illustrate the present application and are not intended to limit the scope of the present application. Similarly, the following examples are only some examples of the present application and not all examples. All other examples obtained by those of ordinary skill in the art without creative work are intended to fall within the scope of protection of this application.

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

[0032] Please refer to Figures 1 to 3. Figure 1 is a schematic diagram of the exploded structure of the display panel provided in an embodiment of the present application, Figure 2 is a schematic diagram of the perspective structure of the first lens structure in Figure 1, and Figure 3 is a schematic diagram of the cross-sectional structure of the display panel provided in an embodiment of the present application. As shown in Figures 1 to 3, the display panel 10 includes a plurality of light-emitting units 11 and a first lens structure 12 provided on the light-emitting side of the plurality of light-emitting units 11. The plurality of light-emitting units 11 are arranged in a plurality of rows along the column direction X, and the first lens structure 12 includes a plurality of first lens units 121. Moreover, the plurality of first lens units 121 are respectively provided corresponding to the plurality of rows of light-emitting units 11A. Specifically, the plurality of first lens units 121 can correspond one-to-one to the plurality of rows of light-emitting units 11A, and each first lens unit 121 can be located on the light-emitting side of its corresponding row of light-emitting units 11A.

[0033] In this embodiment, for each first lens unit 121, the first lens unit 121 can have a center line 121A extending along the row direction Y intersecting the column direction X, and the first lens unit 121 can be configured to focus the light emitted by the corresponding row of light-emitting units 11A in the direction close to the first focusing surface P1 where the center line 121A is located, so as to achieve the purpose of reducing the light emission angle of the corresponding row of light-emitting units 11A along the column direction X, thereby enabling the above-mentioned display panel 10 to display a narrow viewing angle in the column direction X, so that the above-mentioned display panel 10 can be suitable for vehicle-mounted or airborne display applications.

[0034] Specifically, for each first lens unit 121, after the light emitted by its corresponding row of light-emitting units 11A enters the first lens unit 121, the first lens unit 121 will deflect the wide-viewing angle light emitted by its corresponding row of light-emitting units 11A toward the direction of the first focusing surface P1 close to the center line 121A of the first lens unit 121, so as to reduce the light output viewing angle of the above-mentioned display panel 10 in the column direction X, thereby enabling the above-mentioned display panel 10 to achieve narrow viewing angle display in the column direction X.

[0035] Furthermore, the center points Q2 of the light-emitting units 11 located in the same row can be located on the same side of the first focusing plane P1 where the center lines 121A of their corresponding first lens units 121 are located in the column direction X. In one example, as shown in FIG1 and FIG3 , the light-emitting units 11A in each row can be located on the right side of the first focusing plane P1 where the center lines 121A of each first lens unit 121 are located. Thus, while reducing the light emission angle of the light-emitting units 11A in each row along the column direction X, the light emission angle of the light-emitting units 11A in each row along the column direction X can be tilted toward a selected direction (i.e., the direction close to the first focusing plane P1 where the center lines 121A of the corresponding first lens units 121 are located), thereby achieving a narrow viewing angle deflection display of the display panel 10 in the column direction X, so that the display panel 10 can be more suitable for vehicle-mounted or airborne display applications.

[0036] Furthermore, it should be noted that, for each first lens unit 121, the center line 121A of the first lens unit 121 may be formed by the center point Q1 of each cross section of the first lens unit 121 along the row direction Y. In some examples, each cross section of each first lens unit 121 along the row direction Y may have the same shape and size, so that the center line 121A of each first lens unit 121 can be a straight line extending along the row direction Y.

[0037] In some embodiments, as shown in Figures 1 to 3, the first focusing plane P1 on which the center line 121A of each first lens unit 121 lies can be perpendicular to the plane on which the plurality of light-emitting units 11 lie (i.e., the plane on which the column direction X and the row direction Y lie). In one example, the first focusing plane P1 can be a plane parallel to the row direction Y and perpendicular to the plane on which the column direction X and the row direction Y lie.

[0038] Furthermore, it should be noted that, in addition to being perpendicular to the plane where the column direction X and the row direction Y are located, the first focusing surface P1 may also be at an angle greater than 0 degrees and less than 90 degrees to the plane where the column direction X and the row direction Y are located. This is not limited here, as long as the light emission angle of the corresponding row light-emitting unit 11A along the column direction X can be reduced.

[0039] Specifically, for each first lens unit 121 , the first lens unit 121 may have a light incident surface and a light exit surface, and the light incident surface and the light exit surface of the first lens unit 121 may be symmetrical about the first focusing plane P1 where the center line 121A of the first lens unit 121 is located.

[0040] In some examples, as shown in Figures 1 to 3, the light-emitting surface of each first lens unit 121 can be a curved surface that is convex relative to its light-incident surface in a direction away from the corresponding row of light-emitting units 11A (for example, the row of light-emitting units 11A to which it corresponds), and the light-incident surface of each first lens unit 121 can be a plane perpendicular to the normal N1 of the light-emitting unit 11.

[0041] Specifically, in an embodiment where the light-emitting surface of each first lens unit 121 is a curved surface that convexly projects away from the corresponding row of light-emitting units 11A, as shown in FIG3 , for each first lens unit 121, the maximum convex height of the light-emitting surface of the first lens unit 121 relative to its light-entering surface and the maximum width of the light-entering surface of the first lens unit 121 in the column direction X can satisfy the following relationship: 1 / 10 < D / H < 2, where H represents the maximum convex height of the light-emitting surface of the first lens unit 121 relative to its light-entering surface, and D represents the maximum width of the light-entering surface of the first lens unit 121 in the column direction X. In one example, D / H can be equal to 3 / 5. This ensures that the first lens unit 121 has a sufficiently good light-exiting viewing angle narrowing effect.

[0042] In some specific embodiments, as shown in Figures 1 to 3, the first lens unit 121 may be a first lenticular lens 121. In some examples, the first lenticular lens 121 may be symmetrical about a first focusing plane P1 where its centerline 121A lies. Furthermore, the cross-sectional shape of the first lenticular lens 121 along the row direction Y (i.e., the cross-sectional shape perpendicular to the row direction Y) may be an arcuate shape (e.g., an arcuate shape having a central angle θ between 30 and 180 degrees) or a polygonal shape (e.g., an inverted isosceles trapezoid).

[0043] Specifically, in an embodiment in which the cross-section of the first lenticular lens 121 along the row direction Y is arcuate, as shown in FIG1 to FIG3 , the first lenticular lens 121 may be a first partial cylinder 121 , where a generatrix of the first partial cylinder 121 is parallel to the row direction Y. In some examples, the first partial cylinder 121 may be greater than or equal to one-twelfth of a cylinder and less than or equal to one-half of a cylinder.

[0044] In the embodiment where the cross-sectional shape of the first lenticular lens 121 along the row direction Y is polygonal, the first lenticular lens 121 may be a first prism, with edges of the first prism parallel to the row direction Y. In some examples, the first prism may be a quadrangular prism having a cross-sectional shape of an inverted isosceles trapezoid.

[0045] In some specific embodiments, as shown in FIG3 , for each first lens unit 121 , the orthographic projection of the light incident surface of the first lens unit 121 on the plane where the plurality of light-emitting units 11 are located can cover the corresponding row of light-emitting units 11A (for example, the row of light-emitting units 11A corresponding to the first lens unit 121 ). Specifically, the orthographic projection of the light incident surface of the first lens unit 121 on the plane where the plurality of light-emitting units 11 are located can completely cover the row of light-emitting units 11A corresponding to the first lens unit 121 . This ensures that as much light as possible emitted by each row of light-emitting units 11A is collected by the corresponding first lens unit 121 and then emitted, thereby improving light utilization and thereby enhancing the luminous efficiency of the display panel 10 .

[0046] Specifically, as shown in Figures 1 and 3, for each first lens unit 121, the minimum distance between the orthographic projection of the center line 121A of the first lens unit 121 on the plane where the plurality of light-emitting units 11 are located and the center point Q2 of each light-emitting unit 11 in a row of light-emitting units 11A corresponding to the first lens unit 121 can satisfy the following: (DW) / 2>d>0, where d represents the minimum distance between the orthographic projection of the center line 121A of the first lens unit 121 on the plane where the plurality of light-emitting units 11 are located and the center point Q2 of each light-emitting unit 11 in a row of light-emitting units 11A corresponding to the first lens unit 121, D represents the maximum width of the light-entry surface of the first lens unit 121 in the column direction X, and W represents the maximum width of the row of light-emitting units 11A corresponding to the first lens unit 121 in the column direction X. This ensures that the orthographic projection of the light-entry surface of each first lens unit 121 on the plane where the plurality of light-emitting units 11 are located completely covers the row of light-emitting units 11A corresponding to the first lens unit 121, thereby ensuring high luminous efficiency of the display panel 10.

[0047] In some specific embodiments, as shown in Figures 1 to 3, the first lens structure 12 may further include a first lens substrate 122. The first lens substrate 122 is located between the plurality of first lens units 121 and the plurality of light-emitting units 11 and can provide mechanical support for the plurality of first lens units 121. In some examples, the refractive index of the first lens units 121 and the first lens substrate 122 can be lower than the refractive index of the light-emitting units 11, and the material of the first lens units 121 and the first lens substrate 122 can be a light-transmitting material such as a transparent polymer.

[0048] In some examples, the first lens structure 12 may further include a lens base (not shown) positioned between the plurality of first lens units 121 and the first lens substrate 122, and the lens base and the plurality of first lens units 121 may be integrally formed. Specifically, the plurality of first lens units 121 may be formed by protruding from the lens base, at positions corresponding to the plurality of rows of light-emitting units 11A, away from the plurality of rows of light-emitting units 11A on a surface facing away from the plurality of light-emitting units 11.

[0049] In some embodiments, as shown in FIG1 , the plurality of light-emitting units 11 may be further arranged in multiple columns along the row direction Y, that is, the plurality of light-emitting units 11 may be arranged in rows and columns. Specifically, the row direction Y may be perpendicular to the column direction X. Furthermore, in order to further improve the narrow viewing angle display effect of the display panel 10, as shown in FIG4 to FIG6 , the display panel 10 may further include a second lens structure 14, which is provided on a side of the first lens structure 12 away from the plurality of light-emitting units 11. Each second lens structure 14 may include a plurality of second lens units 141, which may be provided corresponding to the plurality of columns of light-emitting units 11B.

[0050] Specifically, each second lens unit 141 can have a center line 141A extending along the above-mentioned column direction X, and each second lens unit 141 can be configured to focus the light emitted by the corresponding column of light-emitting units 11B in the direction of the second focusing surface P2 close to its center line 141A, so as to achieve the purpose of reducing the light emission angle of the corresponding column of light-emitting units 11B along the row direction Y, thereby enabling the above-mentioned display panel 10 to display a narrow viewing angle in the row direction Y, so that the above-mentioned display panel 10 can be more suitable for vehicle-mounted or airborne display applications.

[0051] Specifically, for each second lens unit 141, after the light emitted by its corresponding column of light-emitting units 11B enters the second lens unit 141, the second lens unit 141 will deflect the wide-viewing angle light emitted by its corresponding column of light-emitting units 11B toward the direction of the second focusing surface P2 close to the center line 141A of the second lens unit 141, so as to reduce the light output viewing angle of the above-mentioned display panel 10 in the row direction Y, thereby enabling the above-mentioned display panel 10 to display a narrow viewing angle in the row direction Y and improve the brightness of the narrow viewing angle display.

[0052] Furthermore, it should be noted that, for each second lens unit 141 , the center line 141A of the second lens unit 141 may be formed by the center point Q1 of each cross section of the second lens unit 141 along the column direction X. In some examples, each cross section of each second lens unit 141 along the column direction X may have the same shape and size, so that the center line 141A of each second lens unit 141 can be a straight line extending along the column direction X.

[0053] Specifically, as shown in Figures 4 to 6 , the second focusing plane P2 on which the center line 141A of each second lens unit 141 lies can be perpendicular to the plane on which the plurality of light-emitting units 11 lie (i.e., the plane on which the column direction X and the row direction Y lie). In one example, the second focusing plane P2 can be a plane parallel to the column direction X and perpendicular to the plane on which the column direction X and the row direction Y lie.

[0054] Furthermore, it should be noted that, in addition to being perpendicular to the plane where the column direction X and the row direction Y are located, the second focusing surface P2 may also be at an angle greater than 0 degrees and less than 90 degrees to the plane where the column direction X and the row direction Y are located. This is not limited here, as long as the light emission angle of the corresponding column light-emitting unit 11B along the row direction Y can be reduced.

[0055] In some specific embodiments, as shown in FIG6 , the center points Q2 of the light-emitting units 11 in the same column may be located within the second focusing plane P2 where the center lines 141A of the corresponding second lens units 141 are located. Specifically, the orthographic projection of the center line 141A of each second lens unit 141 on the plane where the plurality of light-emitting units 11 are located may cover the center points Q2 of each light-emitting unit 11 in the corresponding column of light-emitting units 11B.

[0056] In other specific embodiments, the center points Q2 of the light-emitting units 11 located in the same column may also be located on the same side of the second focusing plane P2 in the row direction Y where the center lines 141A of the corresponding second lens units 141 are located. In one example, as shown in FIG4 and FIG6 , the light-emitting units 11B in each column may be located in front of or behind the second focusing plane P2 where the center lines 141A of the second lens units 141 are located. Thus, while reducing the light-emitting angle of each column of the light-emitting units 11B along the row direction Y, the light-emitting angle of each column of the light-emitting units 11B along the row direction Y can be tilted toward a selected direction (i.e., the direction close to the second focusing plane P2 where the center lines 141A of the corresponding second lens units 141 are located), thereby achieving a narrow viewing angle deflection display of the display panel 10 in the row direction Y, so that the display panel 10 can be more suitable for vehicle-mounted or airborne display applications.

[0057] In some embodiments, the angle between the center line 141A of the second lens unit 141 and the center line 121A of the first lens unit 121 can be between 85 degrees and 100 degrees, for example, 90 degrees. Furthermore, in a specific implementation, the angle between the second focusing plane P2 where the center line 141A of the second lens unit 141 is located and the first focusing plane P1 where the center line 121A of the first lens unit 121 is located can also be between 85 degrees and 100 degrees, for example, 90 degrees.

[0058] In some embodiments, as shown in Figures 4 to 6, the second lens unit 141 may be a second lenticular lens 141. In some examples, the second lenticular lens 141 may be symmetrical about the second focusing plane P2 where its centerline 141A lies. Furthermore, the cross-sectional shape of the second lenticular lens 141 along the column direction Y (i.e., the cross-sectional shape perpendicular to the column direction Y) may be an arcuate shape (e.g., an arcuate shape having a central angle θ between 30 and 180 degrees) or a polygonal shape (e.g., an inverted isosceles trapezoid).

[0059] Specifically, the second cylindrical lens 141 may be a second partial cylindrical body or a second prism. Furthermore, in the embodiment where the second cylindrical lens 141 is a second partial cylindrical body, the generatrix of the second partial cylindrical body may be parallel to the column direction X, and the second partial cylindrical body may be greater than or equal to one-twelfth of a cylinder and less than or equal to one-half of a cylinder.

[0060] In the embodiment where the second lenticular lens 141 is a second prism, as shown in Figures 4 to 6 , edges of the second prism 141 may be parallel to the column direction X. In some examples, the second prism 141 is a quadrangular prism having an inverted isosceles trapezoidal cross section.

[0061] In some specific embodiments, as shown in Figures 4 to 6, the second lens structure 14 may further include a second lens substrate 142. The second lens substrate 142 is located on a side of the plurality of second lens units 141 facing away from the first lens structure 12 and can provide mechanical support for the plurality of second lens units 141. In some examples, the refractive index of the second lens units 141 and the second lens substrate 142 can be less than the refractive index of the light-emitting unit 11, and the second lens units 141 and the second lens substrate 142 can be made of a light-transmitting material such as a transparent polymer.

[0062] In some specific embodiments, as shown in FIG6 , the second lens structure 14 includes a plurality of second lens units that can be spaced apart. Furthermore, the second lens structure 14 can further include a light-shielding layer 16, which is disposed in the spacing regions between the plurality of second lens units 141 and around the plurality of second lens units 141. Specifically, the light-shielding layer 16 can be made of a light-shielding material such as vinyl, so that the light-shielding layer 16 can separate each second lens unit 141 from other second lens units 141 located around it, thereby reducing optical crosstalk between adjacent second lens units 141.

[0063] In the above embodiment, as shown in Figure 7, the above-mentioned multiple light-emitting units 121 may include multiple light-emitting units 11 for emitting red light (i.e., red light-emitting units R), multiple light-emitting units 11 for emitting green light (i.e., green light-emitting units G) and multiple light-emitting units 11 for emitting blue light (i.e., blue light-emitting units B), thereby realizing the full-color display function of the above-mentioned display panel 10.

[0064] Specifically, the above-mentioned multiple light-emitting units 121 can be arranged in rows and columns, and each row of light-emitting units 11A can include red light-emitting units R, green light-emitting units G and blue light-emitting units B periodically arranged in the row direction Y. The light-emitting units 11 in the same column can have the same color, for example, all are red light-emitting units R, or all are green light-emitting units G, or all are blue light-emitting units B.

[0065] In some examples, each row of light-emitting units 11A may have a minimum repeating unit (for example, a minimum repeating unit including a red light-emitting unit R, a green light-emitting unit G, and a blue light-emitting unit B), and each minimum repeating unit may correspond to a display pixel point of the above-mentioned display panel 10.

[0066] In some examples, the light-emitting unit 11 may be a light-emitting diode (LED), a micro-light-emitting diode (Micro-LED), or a sub-millimeter light-emitting diode (Mini-LED). In a specific example, the light-emitting unit 12 may be a Micro-LED. Micro-LED chips have advantages such as small size, high brightness, wide color gamut, fast response time, and wide light-emitting angle, thereby improving the display performance of the display panel 10.

[0067] In the above embodiments, as shown in Figures 1, 3, 4 and 5, the display panel 10 may further include a driving substrate 13, which is arranged on the backlight side of the multiple light-emitting units 11, and the backlight side of the multiple light-emitting units 11 is opposite to the light-emitting side of the multiple light-emitting units 11.

[0068] Specifically, the above-mentioned driving substrate 13 may include a substrate and a thin film transistor film layer arranged on one side of the substrate. The above-mentioned multiple light-emitting units 11 may be arranged on the side of the thin film transistor film layer away from the substrate, and the above-mentioned light-emitting units 11 may be electrically connected to the thin film transistor film layer, and the thin film transistor film layer can control the above-mentioned light-emitting units 11 to emit light.

[0069] In some specific embodiments, as shown in FIG3 and FIG5 , the display panel 10 may further include an encapsulation layer 15, which is disposed between the driving substrate 13 and the first lens structure 12 and covers the plurality of light-emitting units 11 to protect the light-emitting units 11. In one example, the refractive index of the encapsulation layer 15 may be lower than that of the light-emitting unit 11, and the material of the encapsulation layer 15 may be a light-transmitting material such as a transparent polymer.

[0070] As can be seen from the above, the display panel provided by this embodiment is configured by arranging a first lens structure on the light-emitting side of a plurality of light-emitting units arranged in multiple rows, and the first lens structure includes a plurality of first lens units, and the plurality of first lens units are respectively arranged corresponding to the multiple rows of light-emitting units, each first lens unit having a center line extending along the row direction, and each first lens unit is configured to focus the light emitted by the corresponding row of light-emitting units in the direction of the first focusing plane close to the center line thereof, and the center points of the light-emitting units in the same row are located on the same side of the corresponding first focusing plane in the column direction, thereby enabling the narrow viewing angle display of the display panel and enabling the micro light-emitting diode display panel to be suitable for vehicle-mounted or airborne display applications.

[0071] Please refer to Figure 8, which is a schematic diagram of the structure of a display device provided in an embodiment of the present application. As shown in Figure 8, the display device 100 includes a display panel 101 of any of the above embodiments, and may also include a driving circuit (not shown) for providing a driving voltage to the display panel 101.

[0072] Among them, the display panel 101 includes a plurality of light-emitting units and a first lens structure arranged on the light-emitting side of the plurality of light-emitting units. The plurality of light-emitting units are arranged in multiple rows along the column direction. The first lens structure includes a plurality of first lens units, and the plurality of first lens units are respectively arranged corresponding to the multiple rows of light-emitting units. Each first lens unit has a center line extending along the row direction. Each first lens unit is configured to focus the light emitted by the light-emitting units in the corresponding row in the direction of the first focusing plane close to the center line thereof, and the center points of the light-emitting units in the same row are located on the same side of the corresponding first focusing plane in the column direction.

[0073] The display device in the embodiment of the present application has the same beneficial effects as the above-mentioned display panel because it is provided with the display panel provided in the embodiment of the present application.

[0074] The embodiments of the present application do not impose any specific restrictions on the applicability of the display device, which can be any product or component with display function, such as a television, a laptop computer, a tablet computer, a wearable display device (such as a smart bracelet, a smart watch, etc.), a mobile phone, a virtual reality device, an augmented reality device, a car display, an advertising light box, etc.

[0075] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0076] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A display panel, comprising: A plurality of light-emitting units are arranged in a plurality of rows along a column direction; A first lens structure is arranged on the light emitting side of the plurality of light emitting units, the first lens structure comprises a plurality of first lens units, the plurality of first lens units are respectively arranged corresponding to the plurality of rows of the light emitting units, each of the first lens units has a center line extending along a row direction, the row direction intersects with the column direction, each of the first lens units is configured to focus the light emitted by the light emitting units in the corresponding row in a direction close to a first focusing plane where the center line thereof is located, and the center points of the light emitting units in the same row are located on the same side of the corresponding first focusing plane in the column direction.

2. The display panel according to claim 1, wherein: The first focusing surface is a plane parallel to the row direction and perpendicular to the plane where the plurality of light emitting units are located.

3. The display panel according to claim 1, wherein: The first lens unit is a first cylindrical lens, and a cross-sectional shape of the first cylindrical lens perpendicular to the row direction is an arcuate shape or a polygonal shape.

4. The display panel according to claim 3, wherein: The first cylindrical lens is a partial cylinder, and a generatrix of the partial cylinder is parallel to the row direction.

5. The display panel according to claim 1, wherein: The plurality of light emitting units are arranged in a plurality of columns along the row direction; the display panel further comprises: The second lens structure is arranged on a side of the first lens structure away from the multiple light-emitting units, the second lens structure includes a plurality of second lens units, the plurality of second lens units are arranged corresponding to the multiple columns of the light-emitting units, each of the second lens units has a center line extending along the column direction, and each of the second lens units is configured to focus the light emitted by the corresponding column of the light-emitting units in the direction of a second focusing plane close to the center line thereof.

6. The display panel according to claim 5, wherein: The second gathering surface is a plane parallel to the column direction and perpendicular to the plane where the plurality of light emitting units are located.

7. The display panel according to claim 5, wherein: The center points of the light-emitting units in the same column are located within the second focusing plane where the center lines of the corresponding second lens units are located; or The center points of the light emitting units in the same column are located on the same side of the second focusing surface where the center lines of the corresponding second lens units are located.

8. The display panel according to claim 5, wherein: The included angle between the second gathering surface and the first gathering surface is between 85 degrees and 100 degrees.

9. The display panel according to claim 5, wherein: The second lens unit is a second cylindrical lens, and a cross-sectional shape of the second cylindrical lens perpendicular to the column direction is an arcuate shape or a polygonal shape.

10. The display panel according to claim 9, wherein: The second cylindrical lens is a prism, and the edges of the prism are parallel to the column direction.

11. The display panel according to claim 5, wherein: The plurality of second lens units are arranged at intervals; the display panel further comprises: The light shielding layer is located in the spacing area between the plurality of second lens units.

12. The display panel according to claim 1, wherein: The orthographic projection of the light incident surface of each of the first lens units on the plane where the plurality of light emitting units are located covers the light emitting units in the corresponding row.

13. The display panel according to claim 1, wherein: Each of the first lens units includes a light incident surface and a light emitting surface, the light emitting surface of each of the first lens units is a curved surface that is convex relative to its light incident surface toward a direction away from the light emitting units of the corresponding row, and the maximum convex height of the light emitting surface of each of the first lens units relative to its light incident surface and the maximum width of its light incident surface in the column direction satisfy: 1 / 10<D / H<2, wherein H represents the maximum convex height of the light emitting surface of each of the first lens units relative to its light incident surface, and D represents the maximum width of the light incident surface of each of the first lens units in the column direction.

14. A display device comprising a drive circuit and the display panel according to any one of claims 1 to 13, wherein the drive circuit is used to provide a drive voltage to the display panel.

Images