Backlight panel

Abstract

An embodiment of the present application discloses a backlight panel. According to the extension direction of the irregular boundary, the present application sets light-emitting devices arranged along the extension direction of the irregular boundary to adaptively fill the space near the irregular boundary, improve the space utilization at the irregular boundary, and then increase the luminous brightness there, thereby improving the uniformity of the overall brightness of the panel.

Description

Technical Field

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

[0002] Currently, the backlight modules of irregular-shaped micro-LED displays are arranged with conventional, evenly spaced micro-LEDs, leaving large dark areas at the edges of the irregular shapes. This results in brighter optical brightness where LEDs are present and darker where LEDs are absent when powered on. This creates an optically poor, uneven brightness, hindering the authenticity of the display's content and causing optical interference and distortion. Furthermore, when adjusting the LEDs in a localized area as a whole, adjustments cannot be made at the edges of the irregular shapes, resulting in poor overall surface uniformity and lowering the product's optical specifications. Summary of the Invention

[0003] The embodiments of the present application provide a backlight panel that can reduce the risk of uneven overall optical brightness caused by darker edges of the backlight panel.

[0004] An embodiment of the present application provides a backlight panel, comprising:

[0005] A substrate comprising at least one first light-emitting area and a second light-emitting area located at least to one side of the first light-emitting area, wherein a boundary of the first light-emitting area and a boundary of the second light-emitting area overlap to form an overlapping boundary; the first light-emitting area includes a first central axis direction and a second central axis direction that are perpendicular to each other, and the second light-emitting area further includes a special-shaped boundary located on a side of the overlapping boundary away from the first light-emitting area, and an extension direction of the special-shaped boundary intersects the first central axis direction and the second central axis direction respectively;

[0006] a plurality of first light-emitting units, the plurality of first light-emitting units being arranged in a matrix along the first central axis direction and the second central axis direction on the first light-emitting area, the first light-emitting units including at least two first light-emitting devices;

[0007] at least one second light-emitting unit, wherein the second light-emitting unit is disposed on the second light-emitting area and includes at least one second light-emitting device;

[0008] An area of ​​the second light emitting unit is smaller than an area of ​​the first light emitting unit.

[0009] Optionally, in some embodiments of the present application, the number of second light-emitting devices in the second light-emitting unit is less than the number of first light-emitting devices in the first light-emitting unit.

[0010] Optionally, in some embodiments of the present application, the first light emitting unit has a first length along the first central axis and a second length along the second central axis;

[0011] In the direction of the first central axis, the length of at least a portion of the second light-emitting area is smaller than the first length; and / or

[0012] In the direction of the second central axis, the length of at least a portion of the second light-emitting area is smaller than the second length.

[0013] Optionally, in some embodiments of the present application, the distance between two adjacent first light-emitting devices is equal to the distance between adjacent first light-emitting devices and second light-emitting devices.

[0014] Accordingly, an embodiment of the present application further provides a backlight panel, comprising:

[0015] a substrate comprising at least one first light-emitting area and a second light-emitting area located at least on one side of the first light-emitting area, wherein a boundary of the first light-emitting area and a boundary of the second light-emitting area overlap to form an overlapping boundary;

[0016] A plurality of first light-emitting devices, wherein the plurality of first light-emitting devices are arranged in a matrix on the first light-emitting area;

[0017] A plurality of second light-emitting devices are arranged in a matrix on the second light-emitting area; in a row direction of the second light-emitting devices, a first distance exists between two adjacent second light-emitting devices;

[0018] The second light-emitting area has a special-shaped boundary, the special-shaped boundary is located on a side of the overlapping boundary away from the first light-emitting area, and an extension direction of the special-shaped boundary intersects the row direction non-perpendicularly;

[0019] In the row direction from the irregular boundary to the first light-emitting area, the first distances between two adjacent ones increase gradually.

[0020] Optionally, in some embodiments of the present application, the second light-emitting area includes a gradient sub-area and a non-gradient sub-area arranged along a column direction of the second light-emitting devices;

[0021] In the gradient sub-area, in the row direction from the irregular boundary to the first light-emitting area, the first distances between two adjacent ones increase gradually;

[0022] In the non-gradient sub-area, in the row direction from the irregular boundary to the first light-emitting area, two adjacent first distances are equal.

[0023] Optionally, in some embodiments of the present application, in the row direction, there is a second distance between two adjacent first light-emitting devices;

[0024] In the non-gradient sub-region, the first distance is equal to the second distance.

[0025] Accordingly, an embodiment of the present application further provides a backlight panel, comprising:

[0026] A substrate, the substrate comprising a light-emitting area, the light-emitting area comprising a special-shaped boundary;

[0027] a plurality of light-emitting units, wherein the plurality of light-emitting units are arranged in a row, the plurality of rows of light-emitting units are disposed on the light-emitting area, and the light-emitting units include at least three light-emitting devices;

[0028] The extension direction of the irregular boundary intersects non-perpendicularly with the row direction of the light-emitting units; the light-emitting unit in each row of the light-emitting units closest to the irregular boundary is an edge unit; in the row of light-emitting devices in the edge unit closest to the irregular boundary, the light-emitting devices are arranged along the extension direction of the irregular boundary.

[0029] Optionally, in some embodiments of the present application, the plurality of light-emitting units include a first light-emitting unit and a second light-emitting unit; in a row direction of the light-emitting units, the first light-emitting units and the second light-emitting units are alternately arranged; in a row of the light-emitting units, the edge units are selected from at least one of the first light-emitting units and the second light-emitting units;

[0030] Each row of the light-emitting units includes a first sub-row and a second sub-row, wherein the first sub-row and the second sub-row are arranged along a direction perpendicular to the row direction; the first light-emitting unit includes at least three light-emitting devices, and the second light-emitting unit includes at least three light-emitting devices;

[0031] From the first sub-row to the second sub-row, the number of the light-emitting devices in the first light-emitting unit decreases; from the first sub-row to the second sub-row, the number of the light-emitting devices in the second light-emitting unit increases.

[0032] Optionally, in some embodiments of the present application, in the adjacent first light-emitting unit and the second light-emitting unit, the number of the light-emitting devices in the first sub-row is equal to the number of the light-emitting devices in the second sub-row.

[0033] Optionally, in some embodiments of the present application, the light-emitting area includes a first light-emitting area and a second light-emitting area arranged along the extension direction of the irregular boundary, and the first light-emitting area is located on one side of the second light-emitting area;

[0034] The first light-emitting unit and the second light-emitting unit are arranged in the first light-emitting area; the light-emitting unit further includes a plurality of third light-emitting units, and the plurality of third light-emitting units are arranged in a row; at least one row of the third light-emitting units is arranged in the second light-emitting area;

[0035] The third light-emitting unit includes at least one light-emitting device, and a plurality of the light-emitting devices are arranged in a matrix.

[0036] Optionally, in some embodiments of the present application, the first light-emitting areas and the second light-emitting areas are alternately arranged along the extension direction of the irregular boundary.

[0037] Optionally, in some embodiments of the present application, the distance between two adjacent light-emitting devices in the first sub-row is equal to the distance between two adjacent light-emitting devices in the second sub-row.

[0038] Optionally, in some embodiments of the present application, the distance between two adjacent light-emitting devices in the first light-emitting area corresponding to the row direction is a first distance, and the distance between two adjacent light-emitting devices in the second light-emitting area corresponding to the row direction is a second distance; the first distance is equal to the second distance.

[0039] Optionally, in some embodiments of the present application, the special-shaped boundary includes a bevel boundary; in the row of light-emitting devices closest to the bevel boundary in the edge unit, the slope of the center line of the light-emitting devices is equal to the slope of the bevel boundary.

[0040] Optionally, in some embodiments of the present application, the special-shaped boundary includes an arc-edge boundary; in the row of light-emitting devices closest to the arc-edge boundary within the edge unit, the curvature of the center line of the light-emitting devices is equal to the curvature of the part of the arc-edge boundary corresponding to the edge unit.

[0041] In the first embodiment of the present application, a second light-emitting unit with a smaller space occupation area is provided in the special-shaped light-emitting area (the second light-emitting area), so that the second light-emitting device can be provided in the special-shaped light-emitting area with a smaller space, thereby increasing the space utilization rate of the special-shaped light-emitting area, improving the brightness of the special-shaped light-emitting area, and thus improving the uniformity of the overall brightness of the panel;

[0042] In the second embodiment of the present application, second light-emitting devices are provided in the irregular light-emitting area (second light-emitting area), and the first distances between the second light-emitting devices are arranged in a gradient manner, so that more second light-emitting devices can be arranged in the space near the irregular boundary of the irregular light-emitting area to the greatest extent possible, thereby increasing the space utilization of the irregular light-emitting area, improving the brightness of the irregular light-emitting area, and thus improving the uniformity of the overall brightness of the panel;

[0043] In the third embodiment of the present application, light-emitting devices are arranged along the extension direction of the irregular boundary according to the extension direction of the irregular boundary, so as to adaptively fill the space near the irregular boundary, improve the space utilization at the irregular boundary, and then increase the luminous brightness there, thereby improving the uniformity of the overall brightness of the panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. 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.

[0045] Figure 1 This is a schematic diagram of the first structure of the backlight panel provided in the first embodiment of the present application;

[0046] Figure 2 yes Figure 1 Enlarged view of part A;

[0047] Figure 3 This is a schematic diagram of the second structure of the backlight panel provided in the first embodiment of the present application;

[0048] Figure 4 yes Figure 3 Enlarged view of part B;

[0049] Figure 5 This is a third structural diagram of the backlight panel provided in Example 1 of the present application;

[0050] Figure 6 yes Figure 5 Enlarged view of part C;

[0051] Figure 7 This is a schematic diagram of the first structure of the backlight panel provided in the second embodiment of the present application;

[0052] Figure 8 yes Figure 7 An enlarged view of part D in FIG.

[0053] Figure 9 This is a schematic diagram of the second structure of the backlight panel provided in the second embodiment of the present application;

[0054] Figure 10 yes Figure 9 An enlarged view of part E in FIG;

[0055] Figure 11 This is a third structural diagram of the backlight panel provided in the second embodiment of the present application;

[0056] Figure 12 yes Figure 11 An enlarged view of part F in FIG.

[0057] Figure 13 This is a schematic diagram of the first structure of the backlight panel provided in the third embodiment of the present application;

[0058] Figure 14 yes Figure 13 An enlarged view of part G in FIG;

[0059] Figure 15 This is a schematic diagram of the second structure of the backlight panel provided in the third embodiment of the present application;

[0060] Figure 16 yes Figure 15 Magnified view of section H. DETAILED DESCRIPTION

[0061] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.

[0062] The embodiments of the present application provide a backlight panel, which is described in detail below. It should be noted that the order of description of the following embodiments does not limit the preferred order of the embodiments.

[0063] Example 1

[0064] Please refer to Figure 1 and Figure 2 An embodiment of the present application provides a backlight panel 100 , which includes a substrate 10 , a plurality of first light-emitting units 21 and at least one second light-emitting unit 22 .

[0065] The substrate 10 includes at least one first light-emitting area 10a and a second light-emitting area 10b located at least to one side of the first light-emitting area 10a. A boundary of the first light-emitting area 10a and a boundary of the second light-emitting area 10b overlap to form an overlapping boundary ch. The first light-emitting area 10a includes a first central axis M and a second central axis N that are perpendicular to each other. The second light-emitting area 10b also includes a non-uniform boundary yx located on the side of the overlapping boundary ch away from the first light-emitting area 10a. The non-uniform boundary yx extends in directions that intersect the first central axis M and the second central axis N.

[0066] The plurality of first light emitting units 21 are arranged in a matrix on the first light emitting area 10 a along the first central axis direction M and the second central axis direction N. The first light emitting unit 21 includes at least two first light emitting devices 211 .

[0067] The second light emitting unit 22 is provided on the second light emitting area 10 b and includes at least one second light emitting device 221 .

[0068] The area of ​​the second light emitting unit 22 is smaller than that of the first light emitting unit 21 .

[0069] It should be explained that the area of ​​the first light-emitting unit 21 is the space occupied by the first light-emitting unit 21 ; the area of ​​the second light-emitting unit 22 is the space occupied by the second light-emitting unit 22 .

[0070] The space occupied area includes the sum of the area of ​​the light emitting device and the area between the light emitting devices. In this embodiment, the light emitting devices are the first light emitting device 211 and the second light emitting device 221.

[0071] In the first embodiment of the present application, a second light-emitting unit with a smaller space occupation area is set in the special-shaped light-emitting area (second light-emitting area), so that the second light-emitting device can be set in the special-shaped light-emitting area with a smaller space, thereby increasing the space utilization rate of the special-shaped light-emitting area, improving the brightness of the special-shaped light-emitting area, and thus improving the uniformity of the overall brightness of the panel.

[0072] Optionally, all first light-emitting devices 211 in each first light-emitting unit 21 emit light together. All second light-emitting devices 221 in each second light-emitting unit 22 emit light together. Each first light-emitting unit 21 and each second light-emitting unit 22 can emit light independently to achieve regional control of the light emission of the backlight panel 100.

[0073] In the case of regionalized luminescence, the space of the area adjacent to the irregular boundary yx (irregular area) is relatively small and irregular, and it is impossible to set a first light-emitting unit 21 with a large space occupation area and a rectangular pattern. Therefore, a second light-emitting unit 22 with a smaller space occupation area and an adapted layout pattern is set in the irregular area (second light-emitting area 10b), thereby reducing the risk of low luminous brightness in the irregular area.

[0074] Optionally, the first light-emitting device 211 and the second light-emitting device 221 may be small light-emitting diode devices such as micro-LED or mini-LED.

[0075] Optionally, the special-shaped boundary may include a beveled boundary and an arc-edge boundary, and the arc-edge boundary includes a circular arc boundary and a non-circular arc boundary.

[0076] For example Figure 1 and Figure 2 As shown, the irregular boundary yx includes a first oblique boundary xb1 and a second oblique boundary xb2. Multiple second luminous areas 10b (irregular areas) are arranged along the extension direction of the first oblique boundary xb1 and the second oblique boundary xb2. Some second luminous areas 10b include portions of the first oblique boundary xb1, while others include portions of the second oblique boundary xb2. First luminous areas 10a are located on the side of the second luminous areas 10b away from the irregular boundary yx.

[0077] like Figure 3 and Figure 4 As shown, the irregular boundary yx includes an arc-shaped boundary. Along the extending direction of the arc-shaped boundary, multiple second luminous areas 10b (irregular areas) are arranged. The second luminous areas 10b include portions of the arc-shaped boundary. The first luminous area 10a is arranged on the side of the second luminous area 10b away from the irregular boundary yx.

[0078] like Figure 5 and Figure 6 As shown, the irregular boundary includes an arc boundary. Along the extension direction of the arc boundary, multiple second luminous areas 10b (irregular areas) are arranged. The second luminous areas 10b include portions of the arc boundary. The first luminous area 10a is arranged on the side of the second luminous area 10b away from the irregular boundary yx.

[0079] Optionally, the number of the second light-emitting devices 221 of the second light-emitting unit 22 is less than the number of the first light-emitting devices 211 of the first light-emitting unit 21 .

[0080] That is to say, the second light-emitting unit 22 reduces the number of second light-emitting devices 221, reduces the space occupied, and changes the layout pattern of the second light-emitting devices 221, so that the second light-emitting unit 22 adapts to the spatial size of the second light-emitting area 10b (special-shaped area), thereby improving the luminous brightness of the second light-emitting area 10b.

[0081] Optionally, the second light-emitting unit 22 may also adjust the distance and / or arrangement direction of the second light-emitting devices 221 to adapt to the irregular boundary yx; for example, in a row of second light-emitting devices 221 close to the irregular boundary yx, the delay direction of the center line connecting the row of second light-emitting devices 221 is consistent with the extension direction of the irregular boundary yx.

[0082] Optionally, the first light emitting unit 21 has a first length along the first central axis direction M and a second length along the second central axis direction N.

[0083] In the first central axis direction M, the length of at least part of the second light-emitting area 10b is less than the first length; and / or, in the second central axis direction N, the length of at least part of the second light-emitting area 10b is less than the second length.

[0084] That is, since the size of the second light-emitting area 10b is smaller than the size of the first light-emitting unit 21, the first light-emitting unit 21 cannot be set. As the size of the second light-emitting area 10b changes, the size and pattern of the second light-emitting unit 22 can also change accordingly to adapt to the second light-emitting area 10b.

[0085] For example, a larger number of second light-emitting devices 221 may be provided for a second light-emitting area 10 b having a larger area, and a smaller number of second light-emitting devices 221 may be provided for a second light-emitting area 10 b having a smaller area.

[0086] Furthermore, depending on the shape of the second light-emitting area 10b, different layout patterns of second light-emitting devices 221 can be arranged to adapt to the second light-emitting area 10b. For example, if the second light-emitting area 10b is a triangle or quasi-triangle with a narrow top and a wide bottom, a layout of one second light-emitting device 221 above and two second light-emitting devices 221 below can be used to adapt to the second light-emitting area 10b. When the size is further reduced, a layout of one second light-emitting device 221 above and one second light-emitting device 221 below can be used to adapt to the second light-emitting area 10b. When the size is further reduced, a layout of one second light-emitting device 221 below can be used to adapt to the second light-emitting area 10b. When the size is further reduced, a layout of one second light-emitting device 221 below can be used to adapt to the second light-emitting area 10b.

[0087] Optionally, the distance between two adjacent first light-emitting devices 211 is equal to the distance between an adjacent first light-emitting device 211 and a second light-emitting device 221 .

[0088] Such an arrangement makes the layout of the light emitting devices in the first light emitting area 10 a and the second light emitting area 10 b uniform, thereby improving the uniformity of the overall light emission of the backlight panel 100 .

[0089] Example 2

[0090] Please refer to Figure 7and Figure 8 The embodiment of the present application further provides a backlight panel 200 , which includes a substrate 10 , a plurality of first light-emitting devices 211 , and a plurality of second light-emitting devices 221 .

[0091] The substrate 10 includes at least one first light emitting region 10a and a second light emitting region 10b located at least one side of the first light emitting region 10a. A boundary of the first light emitting region 10a and a boundary of the second light emitting region 10b overlap to form an overlapping boundary ch.

[0092] A plurality of first light emitting devices 211 are arranged in a matrix on the first light emitting area 10a. A plurality of second light emitting devices 221 are arranged in a matrix on the second light emitting area 10b. In the row direction X of the second light emitting devices 221, a first distance d1 is provided between two adjacent second light emitting devices 221.

[0093] The second light-emitting area 10b has a special-shaped boundary yx, which is located on the side of the overlapping boundary ch away from the first light-emitting area 10a. The extension direction of the special-shaped boundary yx is non-perpendicular to the row direction X.

[0094] From the irregular boundary yx to the row direction X of the first light-emitting area 10a, two adjacent first distances d1 increase gradually.

[0095] In the second embodiment of the present application, a second light-emitting device 221 is set in the irregular light-emitting area (the second light-emitting area 10b), and the first distance d1 between the second light-emitting devices 221 is arranged in a gradient manner, so that more second light-emitting devices 221 can be arranged in the space of the second light-emitting area 10b close to the irregular boundary yx to the greatest extent, thereby increasing the space utilization of the second light-emitting area 10b, improving the brightness of the second light-emitting area 10b, and thereby improving the uniformity of the overall brightness of the panel.

[0096] It can be understood that, from the irregular boundary yx toward the first light-emitting area 10a in the row direction X, the two adjacent first distances d1 increase. In other words, the closer to the irregular boundary yx, the greater the arrangement density of the second light-emitting devices 221. This not only allows the second light-emitting devices 221 to fill the smaller space at the irregular boundary yx, thereby improving the luminous efficiency at the irregular boundary yx, but also the gradient density arrangement further improves the luminous brightness of the boundary area of ​​the backlight panel 200 (the second light-emitting area 10b), thereby improving the uniformity of the overall luminous brightness.

[0097] Optionally, the first light-emitting device 211 and the second light-emitting device 221 may be small light-emitting diode devices such as micro-LED or mini-LED.

[0098] Optionally, the second light-emitting region 10 b includes a gradient sub-region b1 and a non-gradient sub-region b2 arranged along the column direction Y of the second light-emitting devices 221 .

[0099] In the gradient sub-region b1 , two adjacent first distances d1 increase gradually from the irregular boundary yx to the first light-emitting region 10 a in the row direction X.

[0100] In the non-gradient sub-region b2 , two adjacent first distances d1 are equal in the row direction X from the irregular boundary yx to the first light-emitting region 10 a .

[0101] It should be noted that the arrangement of the second light-emitting devices 221 in the non-gradient sub-region b2 is relatively simple, and the distance between adjacent second light-emitting devices 221 is constant. The provision of the non-gradient sub-region b2 effectively adjusts the luminance of the second light-emitting region 10b, avoiding the risk of the second light-emitting region 10b being too bright compared to the first light-emitting region 10a. In other words, the luminance of the non-gradient sub-region b2 is lower than that of the gradient sub-region b1. Optionally, the layout density of the second light-emitting devices 221 in the non-gradient sub-region b2 is lower than that of the gradient sub-region b1.

[0102] Optionally, a second distance d2 is present between two adjacent first light emitting devices 211 in the row direction X. In the non-gradient sub-region b2, the first distance d1 is equal to the second distance d2.

[0103] In the non-gradient sub-area b2, the first distance d1 is equal to the second distance d2, so that the layout density of the first light-emitting devices 211 in the first light-emitting area 10a is equal to the layout density of the second light-emitting devices 221 in the non-gradient sub-area b2, thereby making the luminous brightness per unit area of ​​the two consistent, thereby improving the uniformity of the overall luminous brightness.

[0104] In this embodiment, if Figure 8 As shown, the irregular boundary yx includes a first oblique boundary xb1 and a second oblique boundary xb2 connected to each other. The second light-emitting area 10b includes a first oblique boundary xb1 and a second oblique boundary xb2. The first light-emitting area 10a is arranged on a side of the second light-emitting area 10b away from the irregular boundary yx.

[0105] A gradient sub-region b1 is correspondingly provided at the connection between the first oblique boundary xb1 and the second oblique boundary xb2 , and includes a portion of the first oblique boundary xb1 and a portion of the second oblique boundary xb2 .

[0106] Since the irregular shape of the graphic at the junction of the first oblique edge boundary xb1 and the second oblique edge boundary xb2 is more serious, a gradient sub-area b1 is specifically set to fill the irregular shape space to the greatest extent and improve the luminous brightness of the irregular shape area.

[0107] In some embodiments, as Figure 9 and Figure 10As shown, the irregular boundary yx includes an arc-shaped boundary. The second light-emitting area 10b includes an arc-shaped boundary. The first light-emitting area 10a is arranged on a side of the second light-emitting area 10b away from the irregular boundary yx.

[0108] In some embodiments, as Figure 11 and Figure 12 As shown, the irregular boundary includes an arc boundary. The second light-emitting area 10b includes an arc boundary. The first light-emitting area 10a is arranged on a side of the second light-emitting area 10b away from the irregular boundary yx.

[0109] The second light-emitting area 10b is annular, and the first light-emitting area 10a is located on the inner side of the second light-emitting area 10b.

[0110] It should be noted that when arranging the gradient sub-areas b1 and non-gradient sub-areas b2 in the second light-emitting area 10b, it is possible to first simulate the entire second light-emitting area 10b being set as non-gradient sub-areas b2. When a large vacant space appears in a portion of the area at the irregular boundary yx, the non-gradient sub-area b2 corresponding to the vacant space can be modified to a gradient sub-area b1. This arrangement method can adapt to any irregularly shaped backlight panel 200.

[0111] Example 3:

[0112] Please refer to Figure 13 and Figure 14 Accordingly, the embodiment of the present application further provides a backlight panel 300 , which includes a substrate 10 and a plurality of light-emitting units 20 .

[0113] The substrate 10 includes a light-emitting area fa, and the light-emitting area fa includes a special-shaped boundary yx.

[0114] A plurality of light emitting units 20 are arranged in rows. The rows of light emitting units 20 are provided on the light emitting area fa. The light emitting units 20 include at least three light emitting devices 2a.

[0115] The extension direction of the irregular boundary yx intersects non-perpendicularly with the row direction X of the light-emitting units 20. The light-emitting unit 20 in each row of light-emitting units 20 closest to the irregular boundary yx is an edge unit by. Within the edge unit by, the light-emitting devices 2a in the row closest to the irregular boundary yx are arranged along the extension direction of the irregular boundary yx.

[0116] In the third embodiment of the present application, light-emitting devices 2a are arranged along the extension direction of the irregular boundary yx according to the extension direction of the irregular boundary yx, so as to adaptively fill the space near the irregular boundary yx, improve the space utilization rate at the irregular boundary yx, and thereby improve the luminous brightness there, thereby improving the uniformity of the overall brightness of the panel 300.

[0117] Optionally, the irregular boundary yx includes a bevel boundary. In a row of light emitting devices 2a closest to the bevel boundary in the edge unit by, the slope of a line connecting the centers of the light emitting devices 2a is equal to the slope of the bevel boundary.

[0118] Optional, please refer to Figure 15 and Figure 16 In some embodiments, the irregular boundary yx includes an arc edge boundary. In the row of light emitting devices 2a closest to the arc edge boundary in the edge unit by, the arc of the line connecting the centers of the light emitting devices 2a is equal to the arc of the portion of the arc edge boundary corresponding to the edge unit by.

[0119] Optionally, the light-emitting device 2a may be a small light-emitting diode device such as a micro-LED or mini-LED.

[0120] Optionally, the plurality of light-emitting units 20 include first light-emitting units 20a and second light-emitting units 20b. The first light-emitting units 20a and second light-emitting units 20b are alternately arranged in the row direction X of the light-emitting units 20. In a row of light-emitting units 20, the edge units by are selected from at least one of the first light-emitting units 20a and the second light-emitting units 20b.

[0121] Each row of light emitting units 20 includes a first sub-row 2b1 and a second sub-row 2b2, which are arranged along a direction perpendicular to the row direction X. The first light emitting unit 20a includes at least three light emitting devices 2a. The second light emitting unit 20b includes at least three light emitting devices 2a.

[0122] The number of light emitting devices 2a in the first light emitting unit 20a decreases from the first sub-row 2b1 to the second sub-row 2b2, and the number of light emitting devices 2a in the second light emitting unit 20b increases from the first sub-row 2b1 to the second sub-row 2b2.

[0123] In this embodiment, the space occupied by the first light emitting unit 20 a and the space occupied by the second light emitting unit 20 b are complementary in the row direction X, thereby improving the space utilization of the light emitting area fa.

[0124] Optionally, when the pattern of the first light-emitting unit 20a is narrow at the top and wide at the bottom, the second light-emitting unit 20b is narrow at the bottom and wide at the top. For example, when the center lines connecting the light-emitting devices 2a at the rearmost portion of the first light-emitting unit 20a are triangular, the center lines connecting the light-emitting devices 2a at the rearmost portion of the second light-emitting unit 20b are inverted triangular. For another example, when the center lines connecting the light-emitting devices 2a at the rearmost portion of the first light-emitting unit 20a are trapezoidal, the center lines connecting the light-emitting devices 2a at the rearmost portion of the second light-emitting unit 20b are inverted trapezoidal.

[0125] Optionally, in the adjacent first light-emitting unit 20a and the second light-emitting unit 20b, the number of light-emitting devices 2a in the first sub-row 2b1 is equal to the number of light-emitting devices 2a in the second sub-row 2b2.

[0126] Optionally, in the row direction X, in adjacent first light-emitting units 20 a and second light-emitting units 20 b , the distances between the light-emitting devices 2 a are equal.

[0127] It is understandable that this embodiment uses a method of providing different numbers of light emitting devices 2a in corresponding sub-rows to achieve spatial complementarity in the row direction X. However, in some embodiments, light emitting devices 2a of different densities may be provided in corresponding sub-rows to achieve spatial complementarity in the row direction X.

[0128] Optionally, the light-emitting area fa includes a first light-emitting area fa1 and a second light-emitting area fa2 arranged along the extending direction of the irregular boundary yx, and the first light-emitting area fa1 is located on one side of the second light-emitting area fa2.

[0129] The first and second light emitting units 20a and 20b are arranged in the first light emitting area fa1. The light emitting unit 20 further includes a plurality of third light emitting units 20c arranged in a row. At least one row of third light emitting units 20c is arranged in the second light emitting area fa2.

[0130] The third light-emitting unit 20c includes at least one light-emitting device 2a, and a plurality of light-emitting devices 2a are arranged in a matrix.

[0131] It is understandable that as the irregular boundary yx changes, the spatial pattern of the light-emitting area fa corresponding to each portion of the irregular boundary yx will also change. Therefore, different arrangement patterns of light-emitting devices 2a are provided corresponding to different spatial patterns to achieve the effect of filling the irregular space, thereby achieving the brightness of the light at the irregular boundary yx that is similar to the brightness of other areas.

[0132] In this embodiment, the light-emitting devices 2a arranged in a matrix are set in the second light-emitting area fa2, which plays the effect of transitioning between the two first light-emitting areas fa1. On the one hand, it can reasonably adapt to the special-shaped boundary yx area according to the shape of the special-shaped boundary yx, and on the other hand, it can balance the light-emitting brightness of the light-emitting area fa.

[0133] Optionally, along the extending direction of the irregular boundary yx, the first light-emitting area fa1 and the second light-emitting area fa2 are alternately arranged, so as to further improve the effect of balancing the light-emitting brightness of the light-emitting areas fa.

[0134] In some embodiments, the light-emitting area fa may be formed by arranging the first light-emitting area fa1 .

[0135] Optionally, the distance between two adjacent light emitting devices 2a in the first sub-row 2b1 is equal to the distance between two adjacent light emitting devices 2a in the second sub-row 2b2. This arrangement allows the light emitting devices 2a to be evenly arranged in the first light emitting area fa1, thereby improving light uniformity.

[0136] Optionally, the distance between two adjacent light-emitting devices 2a in the first light-emitting area fa1, along the row direction X, is a first distance d1. The distance between two adjacent light-emitting devices 2a in the second light-emitting area fa2, along the row direction X, is a second distance d2. The first distance d1 is equal to the second distance d2. This arrangement ensures a balanced arrangement of the light-emitting devices 2a in the light-emitting area fa, improving light uniformity.

[0137] In the third embodiment of the present application, light-emitting devices 2a are arranged along the extension direction of the irregular boundary yx according to the extension direction of the irregular boundary yx, so as to adaptively fill the space near the irregular boundary yx, improve the space utilization rate at the irregular boundary yx, and thereby improve the luminous brightness there, thereby improving the uniformity of the overall brightness of the panel 300.

[0138] Optionally, in part of the second light-emitting area fa2, the two adjacent second distances d2 decrease from the irregular boundary yx toward the center of the second light-emitting area fa2, so as to more finely adjust the spatial layout of the second light-emitting area fa2 and improve the spatial utilization of the second light-emitting area fa2; and the gradual setting can further adjust the luminous uniformity of the light-emitting area fa.

[0139] The above is a detailed introduction to a backlight panel provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, based on the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A backlight panel, characterized in that: include: a substrate, the substrate comprising a light-emitting area, the light-emitting area comprising a special-shaped boundary, the light-emitting area comprising a first light-emitting area and a second light-emitting area arranged along an extension direction of the special-shaped boundary, the first light-emitting area being located on one side of the second light-emitting area; a plurality of light-emitting units, wherein the plurality of light-emitting units are arranged in a row, the plurality of rows of light-emitting units are disposed on the light-emitting area, the light-emitting units include at least three light-emitting devices, and the plurality of light-emitting units include a first light-emitting unit and a second light-emitting unit; In the row direction of the light emitting units, the first light emitting units and the second light emitting units are arranged alternately; Each row of the light-emitting units includes a first sub-row and a second sub-row, the first sub-row and the second sub-row are arranged along a direction perpendicular to the row direction; the first light-emitting unit includes at least three light-emitting devices, and the second light-emitting unit includes at least three light-emitting devices; the light-emitting unit further includes a plurality of third light-emitting units, each of the third light-emitting units includes at least one light-emitting device, and the plurality of light-emitting devices are arranged in a matrix; the plurality of third light-emitting units are arranged in a row; At least one row of the third light-emitting units is arranged in the second light-emitting area; the first light-emitting units and the second light-emitting units are arranged in the first light-emitting area; The extension direction of the irregular border intersects non-perpendicularly with the row direction of the light-emitting units; the light-emitting unit in each row of the light-emitting units that is closest to the irregular border is an edge unit; in the row of light-emitting devices that is closest to the irregular border within the edge unit, the light-emitting devices are arranged along the extension direction of the irregular border; in a row of the light-emitting units, the edge unit is selected from at least one of the first light-emitting unit and the second light-emitting unit; Along the extension direction of the irregular border, the first light-emitting areas and the second light-emitting areas are alternately arranged, and part of the second light-emitting areas is provided with two rows of the light-emitting devices arranged in a matrix; In the direction from the first sub-row to the second sub-row, in the first light-emitting unit, the number of the light-emitting devices decreases; in the direction from the first sub-row to the second sub-row, in the second light-emitting unit, the number of the light-emitting devices increases; In the adjacent first light-emitting unit and the second light-emitting unit, the number of the light-emitting devices in the first sub-row is equal to the number of the light-emitting devices in the second sub-row; The distance between two adjacent light-emitting devices in the second light-emitting area corresponding to the row direction is a second distance. In part of the second light-emitting area, the second distances between two adjacent ones decrease from the irregular boundary toward the center of the second light-emitting area.

2. The backlight panel according to claim 1, wherein: The irregular boundary includes a bevel boundary; in the row of light-emitting devices closest to the bevel boundary in the edge unit, the slope of the line connecting the centers of the light-emitting devices is equal to the slope of the bevel boundary.

3. The backlight panel according to claim 1, wherein: The irregular boundary includes an arc edge boundary; in the row of light emitting devices closest to the arc edge boundary in the edge unit, the arc of the center line of the light emitting devices is equal to the arc of the portion of the arc edge boundary corresponding to the edge unit.

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