Display panel and display device

Abstract

The invention discloses a display panel and a display device, and the display panel comprises a plurality of first light-emitting units located in a first display area of the display panel, and each first light-emitting unit comprises a first light-emitting element and a first light modulation element located on the light-emitting side of the first light-emitting element; the second light-emitting units are located in a second display area of the display panel, each second light-emitting unit comprises a second light-emitting element and a second light ray modulation element located on the light-emitting side of the second light-emitting element, and the second display area surrounds the first display area; the light emitting amount of the side, facing the first display area, of the second light-emitting unit is larger than the light emitting amount of the side, facing the second display area, of the first light-emitting unit, so that when a user watches a display image in front of the display panel, the light amount, entering eyes of the user, of the edge area of the display image is increased; the phenomenon that dark corners exist on the edge of a display image watched by a user is relieved, and the user experience is improved.

Description

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-LEDs (micro light-emitting diodes) have great potential in display applications due to their advantages, including high contrast, low power consumption, long lifespan, wide color gamut, high dynamic range, and fast response. However, existing Micro-LED display panels suffer from vignetting around the edges of displayed images, impacting user experience. Summary of the Invention

[0003] In view of the above problems, this application provides a display panel and a display device including the display panel to improve the problem of dark corners at the edges of displayed images on existing Micro-LED display panels and enhance the user experience. The specific solution is as follows:

[0004] A display panel, comprising:

[0005] a plurality of first light-emitting units located in a first display area of ​​the display panel, wherein the first light-emitting units include a first light-emitting element and a first light modulating element located on a light-emitting side of the first light-emitting element;

[0006] a plurality of second light-emitting units located in a second display area of ​​the display panel, the second light-emitting units including a second light-emitting element and a second light modulating element located on a light-emitting side of the second light-emitting element, wherein the second display area surrounds the first display area;

[0007] The amount of light emitted from the second light emitting unit toward the first display area is greater than the amount of light emitted from the first light emitting unit toward the second display area.

[0008] A display device comprises the above-mentioned display panel.

[0009] In the display device and display panel provided by the present application, the amount of light emitted by the second light-emitting unit toward the first display area is greater than the amount of light emitted by the first light-emitting unit toward the second display area, thereby increasing the amount of light emitted from the second display area toward the first display area. When a user is located directly in front of the display panel and views a displayed image, the amount of light entering the user's eyes from the edge area of ​​the displayed image can be increased, thereby increasing the brightness of the edge area of ​​the displayed image viewed by the user, alleviating the phenomenon of dark corners at the edges of the displayed image viewed by the user, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The above and other features, advantages, and aspects of the various embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

[0011] Figure 1 A top view of a display panel provided in this application;

[0012] Figure 2 A cross-sectional view of a display panel provided in this application;

[0013] Figure 3 A schematic diagram of the relative positions of a first display area and a second display area in a display panel provided in the present application;

[0014] Figure 4 A top view of a second light-emitting unit in another display panel provided by the present application;

[0015] Figure 5 A top view of a first light-emitting unit in another display panel provided by the present application;

[0016] Figure 6 A cross-sectional view of a second light-emitting unit in another display panel provided by the present application;

[0017] Figure 7 A cross-sectional view of a second light-emitting unit in another display panel provided by the present application;

[0018] Figure 8 A top view of a display panel provided in this application;

[0019] Figure 9 A cross-sectional view of a display panel provided in this application;

[0020] Figure 10 A top view of a display panel provided in this application;

[0021] Figure 11 A cross-sectional view of a display panel provided in this application;

[0022] Figure 12 is a schematic diagram of a portion of the light emitted by the second light emitting element after being emitted through the second light modulating element when the symmetry axis of the second light modulating element coincides with the symmetry axis of the second light emitting element;

[0023] Figure 13 is a schematic diagram of a portion of the light emitted by the second light modulator after being emitted through the second light modulator when the symmetry axis of the second light modulator is moved by a distance W1 toward the first display area compared to the symmetry axis of the second light emitting element;

[0024] Figure 14 A schematic diagram of the relative positions of a first display area, a first sub-display area, and a second sub-display area in another display panel provided by the present application;

[0025] Figure 15 A schematic diagram of a display device provided in this application. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] It will be apparent to those skilled in the art that various modifications and variations can be made to this application without departing from the spirit or scope of this application. Therefore, this application is intended to cover modifications and variations of this application that fall within the scope of the corresponding claims (technical solutions claimed for protection) and their equivalents. It should be noted that the embodiments provided in the examples of this application may be combined with each other unless there is any inconsistency.

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0029] As described in the background technology section, existing Micro-LED display panels have dark corners at the edges of displayed images, which affects user experience.

[0030] This is because current Micro-LED display panels usually include multiple Micro-LEDs arranged in an array and microlenses corresponding to the Micro-LEDs to modulate the light emitted by the Micro-LEDs. The microlenses corresponding to the Micro-LEDs in each area have the same light modulation effect on their corresponding Micro-LEDs, so that when the light emitted by each Micro-LED is shaped by the microlens and emitted, the side light is less, resulting in a difference in the intensity of the central part of the light field formed by the output light of the display panel and the intensity of its edge part.

[0031] When the user views the displayed image directly in front of the display panel, he or she can only see the side light at the edge of the displayed image, which makes the edge of the displayed image appear darker, resulting in dark corners at the edge of the displayed image viewed by the user.

[0032] In view of this, an embodiment of the present application provides a display panel, such as Figure 1 and Figure 2 As shown, the display panel includes:

[0033] A plurality of first light-emitting units 10 located in a first display area 101 of the display panel, wherein the first light-emitting unit 10 includes a first light-emitting element 11 and a first light modulating element 12 located on a light-emitting side of the first light-emitting element 11;

[0034] The second light emitting units 20 are located in the second display area 102 of the display panel. The second light emitting units 20 include a second light emitting element 21 and a second light modulating element 22 located on the light emitting side of the second light emitting element 21. Figure 3 As shown, the second display area 102 surrounds the first display area 101 .

[0035] Optionally, in one embodiment of the present application, the first light-emitting element 11 and the second light-emitting element 21 are Micro-LEDs, and the first light modulation element 12 and the second light modulation element 22 are microlenses, but the present application does not limit this and it depends on the specific situation.

[0036] Specifically, in one embodiment of the present application, continue as follows Figure 2 As shown, the first light-emitting element 11 includes a first semiconductor layer 111, a second semiconductor layer 112, a quantum well layer 113 located between the first semiconductor layer 111 and the second semiconductor layer 112, a first electrode 1141 electrically connected to the first semiconductor layer 111, and a second electrode 1142 electrically connected to the second semiconductor layer 112, wherein the first electrode 1141 and the second electrode 1142 are electrodes of the first light-emitting element 11. It should be noted that in this embodiment, the second light-emitting element has the same structure as the first light-emitting element, and this application will not repeat it again.

[0037] Optionally, in this embodiment, the display panel further includes: an array substrate 30, the array substrate 30 having a backplane electrode, the first light-emitting element 11 and the second light-emitting element 21 being located on the array substrate 30, and being electrically connected to the backplane electrode on the array substrate 30 through their electrodes, so that the array substrate 30 can control the light-emitting state of the first light-emitting element 11 and the second light-emitting element 21; an encapsulation layer 40 located on the side of the first light-emitting element 11 and the second light-emitting element 21 away from the array substrate 30, covering the first light-emitting element 11 and the second light-emitting element 21, and the first light modulation element 12 and the second light modulation element 22 being located on the side of the encapsulation layer 40 away from the array substrate 30.

[0038] In this embodiment, the amount of light emitted from the second light-emitting unit 20 toward the first display area 101 is greater than the amount of light emitted from the first light-emitting unit 10 toward the second display area 102, thereby increasing the amount of light emitted from the second display area 102 toward the first display area 101. When a user is located directly in front of the display panel and views a displayed image, the amount of light entering the user's eyes from the edge area of ​​the displayed image can be increased, thereby increasing the brightness of the edge area of ​​the displayed image viewed by the user, alleviating the phenomenon of dark corners at the edges of the displayed image viewed by the user, and improving the user experience.

[0039] On the basis of the above embodiments, in one embodiment of the present application, the first light modulation element 12 has a first light modulation effect on the light emitted by the first light emitting element 11, and the second light modulation element 22 has a second light modulation effect on the light emitted by the second light emitting element 21. The light distribution emitted by the first light emitting element 11 and the second light emitting element 21 is the same. The first light modulation effect and the second light modulation effect make the light emission amount of the second light emitting unit 20 toward the first display area 101 side greater than the light emission amount of the first light emitting unit 10 toward the second display area 102 side, thereby increasing the light emission amount of the second display area 102 toward the first display area 101 while ensuring the light emission amount on the front of the first display area 101, so that when the user is located directly in front of the display panel and watching the displayed image, the amount of light entering the user's eyes in the edge area of ​​the displayed image can be increased, and then, while ensuring the brightness of the central area of ​​the displayed image viewed by the user, the brightness of the edge area of ​​the displayed image viewed by the user is increased, thereby alleviating the phenomenon of dark corners at the edges of the displayed image viewed by the user and improving the user experience.

[0040] Optionally, in one embodiment of the present application, continue as Figure 1 and Figure 2 As shown, the second light modulator 22 covers the light-emitting side of the second light-emitting element 21, so that the light emitted by the second light-emitting element 21 is modulated by the second light modulator 22 before being emitted; similarly, the first light modulator 12 covers the light emitted by the first light-emitting element 11, so that the light emitted by the first light modulator 12 is modulated by the first light modulator 12 before being emitted.

[0041] Specifically, in one embodiment of the present application, continue as follows Figure 1As shown, in the direction parallel to the plane where the display panel is located, the size of the second light modulator 22 is larger than the size of the second light emitting element 21, such as the projected area of ​​the second light modulator 22 in the plane where the display panel is located is larger than the projected area of ​​the second light emitting element 21 in the plane where the display panel is located, so as to ensure that the second light modulator 22 can completely cover the outgoing light of the second light emitting element 21, so that the light emitted from the side of the second light emitting element 21 is also modulated by the second light modulator 22 and then emitted; similarly, continue as Figure 1 As shown, in the direction parallel to the plane where the display panel is located, the size of the first light modulator 12 is larger than the size of the first light emitting element 11, such as the projection area of ​​the first light modulator 12 in the plane where the display panel is located is larger than the projection area of ​​the first light emitting element 11 in the plane where the display panel is located, so as to ensure that the first light modulator 12 can completely cover the outgoing light of the first light emitting element 11, so that the light emitted from the side of the first light emitting element 11 is also modulated by the first light modulator 12 and then emitted.

[0042] like Figure 4 As shown, taking the example of a circular surface of the second light modulator 22 facing the second light emitting element 21 and a rectangular surface of the second light emitting element 21 facing the second light modulator 22, in a first direction X parallel to the plane of the display panel, the surface of the second light modulator 22 facing the second light emitting element 21 has a first width W2, and the surface of the second light emitting element 21 facing the second light modulator 22 has a second width W3, where W2>W3. In a second direction Y parallel to the plane of the display panel, the surface of the second light modulator 22 facing the second light emitting element 21 has a third width W4, and the surface of the second light emitting element 21 facing the second light modulator 22 has a fourth width W5, where W4>W5, so that the projected area of ​​the second light modulator 22 in the plane of the display panel covers and is larger than the projected area of ​​the second light emitting element 21 in the plane of the display panel. The first direction and the second direction are different, and optionally, the first direction is perpendicular to the second direction.

[0043] Specifically, in one embodiment of the present application, continue as follows Figure 4As shown, in a first direction X parallel to the plane of the display panel, the second light modulator 22 has a first end E1 and a second end E2 opposite to each other, and the second light emitting element 21 has a third end E3 and a fourth end E4 opposite to each other. The first end E1 and the third end E3 are located on one side of the center of the second light emitting element 21, and the second end E2 and the fourth end E4 are located on the other side of the center of the second light emitting element 21. A first spacing K1 is defined between the first end E1 and the third end E3, and a second spacing K2 is defined between the second end E2 and the fourth end E4, where K1>0 and K2>0, so that the second light modulator 22 can completely cover the light emitted by the second light emitting element 21 in the first direction X. It should be noted that in this embodiment, the first spacing and the second spacing can be the same or different, and this is not limited in this application and depends on the specific circumstances.

[0044] Continue as Figure 4 As shown, in a second direction Y parallel to the plane of the display panel, the second light modulator 22 has a first end E5 and a second end E6 opposite each other, and the second light emitting element 21 has a third end E7 and a fourth end E8 opposite each other. The first end E5 and the third end E7 are located on one side of the center of the second light emitting element 21, and the second end E6 and the fourth end E8 are located on the other side of the center of the second light emitting element 21. A third spacing K3 is defined between the first end E5 and the third end E7, and a fourth spacing K4 is defined between the second end E6 and the fourth end E8. K3>0, K4>0, so that the second light modulator 22 can completely cover the light emitted by the second light emitting element 21 in the second direction Y. It should be noted that in this embodiment, the third spacing and the fourth spacing can be the same or different, and this is not limited in this application and depends on the specific circumstances.

[0045] like Figure 5 As shown, taking the example of the surface of the first light modulator 12 facing the first light-emitting element 11 as a circular surface and the surface of the first light-emitting element 11 facing the first light modulator 12 as a rectangular surface, in the first direction X parallel to the plane where the display panel is located, the surface of the first light modulator 12 facing the first light-emitting element 11 has a fifth width W6, and the surface of the first light-emitting element 11 facing the first light modulator 12 has a sixth width W7, W6>W7, and in the second direction Y parallel to the plane where the display panel is located, the surface of the first light modulator 12 facing the first light-emitting element 11 has a seventh width W8, and the surface of the first light-emitting element 11 facing the first light modulator 12 has an eighth width W9, W8>W9, so that the projection area of ​​the first light modulator 12 in the plane where the display panel is located covers and is larger than the projection area of ​​the first light-emitting element 11 in the plane where the display panel is located.

[0046] Specifically, continue as Figure 5 As shown, in a first direction X parallel to the plane of the display panel, the first light modulator 12 has a first end F1 and a second end F2 relative to each other, and the first light emitting element 11 has a third end F3 and a fourth end F4 relative to each other. The first end F1 and the third end F3 are located on one side of the center of the first light emitting element 11, and the second end F2 and the fourth end F4 are located on the other side of the center of the first light emitting element 11. A fifth spacing K5 is defined between the first end F1 and the third end F3, and a sixth spacing K6 is defined between the second end F2 and the fourth end F4. K5>0, K6>0, so that the first light modulator 12 can completely cover the light emitted by the first light emitting element 11 in the first direction X. It should be noted that in this embodiment, the fifth spacing and the sixth spacing can be the same or different, and this application does not impose any limitation on this, and the specific configuration depends on the specific situation.

[0047] Continue as Figure 5 As shown, in the second direction Y parallel to the plane of the display panel, the first light modulator 12 has a first end F5 and a second end F6 relative to each other, and the first light emitting element 11 has a third end F7 and a fourth end F8 relative to each other. The first end F5 and the third end F7 are located on one side of the center of the first light emitting element 11, and the second end F6 and the fourth end F8 are located on the other side of the center of the first light emitting element 11. There is a seventh spacing K7 between the first end F5 and the third end F7, and an eighth spacing K6 between the second end F6 and the fourth end F8. K7>0, K8>0, so that the first light modulator 12 can completely cover the output light of the first light emitting element 11 in the second direction Y. It should be noted that in this embodiment, the seventh spacing and the eighth spacing can be the same or different, and this application does not limit this, and it depends on the specific situation.

[0048] Based on any of the above embodiments, in one embodiment of the present application, the first light-emitting element 11 located in the first display area 101 and the second light-emitting element 21 located in the second display area 102 are the same size. Optionally, in this embodiment, the shape and area of ​​the surface of the first light modulator 12 facing the first light-emitting element 11 may also be the same as the shape and area of ​​the surface of the second light modulator 22 facing the second light-emitting element 21, but this application does not limit this and it depends on the specific circumstances.

[0049] Optionally, in one embodiment of the present application, continue as Figure 2As shown, in a plane parallel to the display panel, the center of the first light modulator 12 coincides with the center of the first light emitting element 11, thereby improving the uniformity of light above the first light emitting element 11. Similarly, in a plane parallel to the display panel, the center of the second light modulator 22 coincides with the center of the second light emitting element 21, thereby improving the uniformity of light above the second light emitting element 21. However, this application does not impose a limitation on this, and the specific configuration will depend on the circumstances.

[0050] On the basis of the above embodiments, in one embodiment of the present application, the light-emitting side surface of the first light modulating element 12 has a first roughness. It should be noted that in this embodiment, the roughness of different areas of the light-emitting side surface of the first light modulating element 12 is the same or substantially the same; Figure 6 As shown, the light-emitting side of the second light modulator 22 includes a first area 221 and a second area 222. In a direction perpendicular to the plane where the display panel is located, the second area 222 is located between the first area 221 and the second light-emitting element 21, wherein the surface of the first area 221 of the second light modulator 22 has a second roughness, and the surface of the second area 222 of the second light modulator 22 has a third roughness, and the third roughness is greater than the first roughness. By increasing the roughness of the surface of the second area 222 of the second light modulator 22, the diffuse reflection of light on the surface of the second area 222 of the second light modulator 22 is increased, thereby increasing the amount of light emitted from the second light-emitting unit 20 toward the side of the first display area 101, so that when a user is located directly in front of the display panel and views the displayed image, the amount of light entering the user's eyes in the edge area of ​​the displayed image can be increased, thereby increasing the brightness of the edge area of ​​the displayed image viewed by the user, alleviating the phenomenon of dark corners at the edge of the displayed image viewed by the user, and improving the user experience.

[0051] Optionally, in one embodiment of the present application, the third roughness is greater than the second roughness, so as to reduce the diffuse reflection of the surface of the first area 221 of the second light modulator 22 by setting the roughness of the first area 221 of the second light modulator 22 to be lower, thereby reducing the portion of the outgoing light from the first area 221 of the second light modulator 22 that is directed toward the first display area 101, and ensuring the amount of light emitted directly above the second light-emitting unit 20.

[0052] Optionally, in one embodiment of the present application, the second roughness is the same or substantially the same as the first roughness, so as to reduce the process difficulty when manufacturing the first light modulation element 12 and the second light modulation element 22, but the present application does not limit this and it depends on the specific situation.

[0053] Specifically, in one embodiment of the present application, Figure 4 and Figure 6 As shown, the second region 222 of the second light modulator 22 has a plurality of protrusions 223 on its surface. The plurality of protrusions 223 on the second region 222 of the second light modulator 22 increases the surface roughness of the second region 222 of the second light modulator 22, thereby providing the second region 222 of the second light modulator 22 with a third roughness. However, this application is not limited to this method. In other embodiments of this application, the surface roughness of the second region 222 of the second light modulator 22 may be increased by other methods, depending on the specific circumstances.

[0054] The second light modulation element 22 provided in the embodiment of the present application is described below by taking the example of increasing the surface roughness of the second region 222 of the second light modulation element 22 by providing a plurality of protrusions 223 on the surface of the second region 222 of the second light modulation element 22 .

[0055] Optionally, in one embodiment of the present application, the cross-sectional view of the protrusion 223 on the surface of the second region 222 of the second light modulation element 22 may be a triangle, such as Figure 6 As shown, it can also be trapezoidal, such as Figure 4 As shown, it can also be other regular shapes or irregular shapes. The present application does not limit this. As long as it can increase the roughness of the surface of the second area 222 of the second light modulator 22, thereby enhancing the diffuse reflection of the surface of the second area 222 of the second light modulator 22, and thereby increasing the amount of light emitted from the second light-emitting unit 20 toward the side of the first display area 101, when the user is located directly in front of the display panel and views the displayed image, the amount of light entering the user's eyes from the edge area of ​​the displayed image can be increased, thereby increasing the brightness of the edge area of ​​the displayed image viewed by the user, alleviating the phenomenon of dark corners at the edge of the displayed image viewed by the user, and improving the user experience.

[0056] Based on the above embodiment, in one embodiment of the present application, the shapes and sizes of the plurality of protrusions 223 on the surface of the second region 222 of the second light modulation element 22 are all the same, such as Figure 4 In another embodiment of the present application, the shapes and / or sizes of the plurality of protrusions 223 on the surface of the second region 222 of the second light modulating element 22 may also be different, such as Figure 6 As shown, this application does not limit this and the specific circumstances will depend on the specific situation.

[0057] The display panel provided in the embodiment of the present application is described below by taking an example in which the shapes and sizes of the plurality of protrusions 223 on the surface of the second region 222 of the second light modulation element 22 are the same.

[0058] Optionally, in one embodiment of the present application, Figure 7As shown, in the direction perpendicular to the plane where the display panel is located, the maximum distance from the first area 221 of the second light modulator 22 to the surface of the second light modulator 22 facing the second light-emitting element 21 is a first distance H1, and the top of the protrusion 223 to the bottom of the protrusion 223 has a second distance H2, 0≤H2≤H1 / 4, so as to increase the side light emission of the second light-emitting unit 20, that is, to increase the amount of light emitted by the second light-emitting unit 20 toward the first display area 101, so that when the user is located directly in front of the display panel to watch the displayed image, the amount of light entering the user's eyes in the edge area of ​​the displayed image can be increased, thereby increasing the brightness of the edge area of ​​the displayed image viewed by the user, alleviating the phenomenon of dark corners at the edge of the displayed image viewed by the user, and improving the user experience.

[0059] Specifically, in one embodiment of the present application, the value range of the second distance H2 is 0.1 microns to 5 microns. Further, the value range of the second distance H2 can be optionally selected as 0.5 microns to 3 microns, so as to increase the side light emission of the second light-emitting unit 20, that is, increase the amount of light emitted by the second light-emitting unit 20 toward the first display area 101, so that when the user is located directly in front of the display panel to watch the displayed image, the amount of light entering the user's eyes in the edge area of ​​the displayed image can be increased, thereby increasing the brightness of the edge area of ​​the displayed image viewed by the user, alleviating the phenomenon of dark corners at the edge of the displayed image viewed by the user, and improving the user experience, so that the protrusion 223 on the surface of the second area 222 of the second light modulation element 22 is not set too high.

[0060] Optionally, in one embodiment of the present application, the protrusions on the surface of the second region 222 of the second light modulating element 22 can be produced by a stamping process or an etching process. It should be noted that the height of the protrusions produced by the stamping process (i.e., the distance H2 from the top to the bottom of the protrusion) can have a larger value, but the present application does not limit this, and it depends on the specific situation.

[0061] Optionally, in one embodiment of the present application, continue as Figure 7As shown, in the direction perpendicular to the plane where the display panel is located, the maximum distance from the first area of ​​the second light modulator 22 to the surface of the second light modulator 22 on the side facing the second light-emitting element 21 is a first distance H1, and the maximum distance from the second area of ​​the second light modulator 22 to the surface of the second light modulator 22 on the side facing the second light-emitting element 21 is H3, H1 / 3≤H3≤2H1 / 3, that is, in the direction perpendicular to the plane where the display panel is located, the height of the second area is H3, H1 / 3≤H3≤2H1 / 3, so that the second area 222 of the second light modulator 22 can modulate the light emitted from the side of the second light-emitting element 21, thereby increasing the amount of light emitted from the second light-emitting unit 20 toward the first display area 101, but will not excessively affect the amount of light emitted above the second light-emitting unit 20.

[0062] Based on any of the above embodiments, in an optional embodiment of the present application, continue as follows Figure 7 As shown, the symmetry axis G1G2 of the second light modulator 22 and the symmetry axis G3G4 of the second light emitting element coincide with each other, but the present application does not limit this. The symmetry axis G1G2 of the second light modulator 22 and the symmetry axis G3G4 of the second light emitting element may also not coincide with each other, and the present application does not limit this, depending on the specific circumstances.

[0063] In another embodiment of the present application, Figure 8 and Figure 9 As shown, in a direction perpendicular to the plane where the display panel is located, the second light modulating element 22 has a first position A farthest from the second light emitting element 21, and in a direction parallel to the plane where the display panel is located, the second light modulating element 22 has a second position B farthest from the first display area 101 and a third position C closest to the first display area 101, and in a direction parallel to the plane where the display panel is located, the distance D1 between the first position A and the second position V is greater than the distance D2 between the first position A and the third position C, that is, in this embodiment, in the direction from the second display area 102 to the first display area 101, the second light modulating element 22 has a first position A farthest from the first display area 101 and a third position C closest to the first display area 101, and in a direction parallel to the plane where the display panel is located, the distance D1 between the first position A and the second position V is greater than the distance D2 between the first position A and the third position C, that is, in the embodiment, in the direction from the second display area 102 to the first display area 101, the second light modulating element 22 has a first position B farthest from the first display area 101 and a third position C closest to the first display area 101, and in The projection A' of the top of the element 22 on the plane where the display panel is located is closer to the first display area 101 than the center J of the second light-emitting element 21. Therefore, by changing the focusing direction of the second light modulator 22, the distribution of the output light of the second light modulator 22 is changed, and the amount of light in the output light of the second light modulator 22 directed toward the first display area 101 is increased. When the user is located directly in front of the display panel and views the displayed image, the amount of light entering the user's eyes in the edge area of ​​the displayed image can be increased, thereby increasing the brightness of the edge area of ​​the displayed image viewed by the user, alleviating the phenomenon of dark corners at the edge of the displayed image viewed by the user, and improving the user experience.

[0064] Optionally, in this embodiment, the second light modulator 22 and the first light modulator 12 have different shapes, and the projection of the highest point of the first light modulator 12 away from the first light-emitting element 11 on the surface of the first light modulator 12 facing the first light-emitting element 11 is located at the center of the surface of the first light modulator 12 facing the first light-emitting element 11, and in the plane parallel to the display panel, the center of the first light modulator 12 coincides with the center of the first light-emitting element 11, such as the axis of symmetry of the first light modulator 12 coincides with the axis of symmetry of the first light-emitting element 11, so as to improve the uniformity of light above the first light-emitting element 11.

[0065] Based on the above embodiment, in an optional embodiment of the present application, continue as follows Figure 9 As shown, in the direction parallel to the plane where the display panel is located, the center of the second position B and the third position C is the fourth position, and the angle θ between the connecting line of the first position A and the fourth position and the direction perpendicular to the plane where the display panel is located is in the range of ±1°~±65°. Optionally, the angle θ between the connecting line of the first position A and the fourth position and the direction perpendicular to the plane where the display panel is located is in the range of ±15°~±45°. Therefore, on the basis of increasing the amount of light emitted by the second light-emitting unit 20 in the direction of the first display area 101, the amount of light emitted by the second light-emitting unit 20 enters the user's eyes as much as possible, thereby increasing the brightness of the edge area of ​​the display image viewed by the user, alleviating the phenomenon of dark corners at the edge of the display image viewed by the user, and improving the user experience.

[0066] Specifically, in one embodiment of the present application, the second light modulator 22 may include an embossing process to change the shape of the second light modulator 22 through the embossing technology, so that the angle θ between the connecting line between the first position and the fourth position in the second light modulator 22 and the direction perpendicular to the plane of the display panel is in the range of 5° to 60°, but the present application does not impose any limitation on this, and it depends on the specific situation.

[0067] In another embodiment of the present application, Figure 10 and Figure 11As shown, the second light modulator 22 covers the light-emitting side of the second light-emitting element 21, and in a plane parallel to the display panel, the center M of the second light modulator 22 is closer to the first display area 101 than the center N of the second light-emitting element 21, so as to adjust the light modulation effect of the second light modulator 22 on the second light-emitting element 21 by translating the second light modulator 22 toward the first display area 101, and increase the amount of light emitted by the second light-emitting unit 20 toward the first display area 101, so that when the user is located directly in front of the display panel and views the displayed image, the amount of light entering the user's eyes can be increased, thereby increasing the brightness of the edge area of ​​the displayed image viewed by the user, alleviating the phenomenon of dark corners at the edge of the displayed image viewed by the user, and improving the user experience.

[0068] Optionally, in the above embodiment, continue as Figure 11 As shown, in a direction parallel to the display plane, the distance D1 between the first position A and the second position B is equal to the distance D2 between the first position A and the third position C, that is, the projection of the highest point A of the second light modulator 22 away from the second light emitting element 21 on the surface of the second light modulator 22 facing the second light emitting element 21 is located at the center of the surface of the second light modulator 22 facing the second light emitting element 21, but this application is not limited to this and the specific situation depends on the circumstances. It should be noted that in the embodiment of the present application, the second light modulator 22 and the first light modulator 12 have the same shape, which can reduce the process complexity when manufacturing the second light modulator 22 and the first light modulator 12.

[0069] Optionally, in one embodiment of the present application, continue as Figure 11 As shown, in a plane parallel to the display panel, the distance W1 between the center M of the second light modulator 22 and the center N of the second light emitting element 21 is greater than 0.2 microns to increase the amount of light emitted from the second light emitting unit 20 toward the first display area 101, but this application does not limit this and it depends on the specific situation.

[0070] Based on the above embodiments, in one embodiment of the present application, the distance W1 between the center M of the second light modulator 22 and the center N of the second light emitting element 21 has a value range of 1 / 20 ×W2≤W1≤2 / 5×W2. Optionally, the distance W1 between the center of the second light modulator 22 and the center of the second light emitting element 21 has a value range of 1 / 10 ×W2≤W1≤1 / 5 ×W2, so as to increase the amount of light emitted from the second light emitting unit 20 toward the first display area 101 while ensuring the amount of light emitted directly above the second light emitting unit 20.

[0071] like Figure 12 and Figure 13 As shown, Figure 12 FIG2 shows a schematic diagram of a portion of the emitted light from the second light modulating element 22 after being emitted from the second light modulating element 22 when the symmetry axis Q of the second light modulating element 22 and the symmetry axis R of the second light emitting element 21 coincide with each other. Figure 13 Schematic diagram showing a portion of the light emitted from the second light modulator 21 after being emitted from the second light modulator 22 when the symmetry axis Q of the second light modulator 22 moves a distance W1 toward the first display area 101 compared to the symmetry axis R of the second light emitting element 21. Figure 12 and Figure 13 It can be seen that after the symmetry axis Q of the second light modulator 22 is shifted by a distance W1 toward the first display area 101 relative to the symmetry axis R of the second light-emitting element 21, the light emitted by the second light-emitting element 21, after being modulated by the second light modulator 22, changes its transmission direction and is transmitted toward the first display area 101. For example, for red light T, when the symmetry axis Q of the second light modulator 22 and the symmetry axis R of the second light-emitting element 21 coincide, the red light T emitted by the second light modulator 22 is modulated and emitted perpendicularly from the display panel, and is directly above the second light-emitting element 32. When the symmetry axis Q of the second light modulator 22 is shifted by a distance W1 toward the first display area 101 relative to the symmetry axis R of the second light-emitting element 21, the red light T emitted by the second light modulator 22 no longer exits perpendicularly from the display panel, but is tilted toward the first display area, increasing the side light output of the second light modulator 22.

[0072] Therefore, the display panel provided in the embodiment of the present application can increase the amount of light emitted from the second light-emitting unit 20 toward the first display area 101 by moving the symmetry axis Q of the second light modulation element 22 relative to the symmetry axis R of the second light-emitting element 21 toward the first display area 101 by a distance W1, so that when the user is located directly in front of the display panel and views the displayed image, the amount of light entering the user's eyes can be increased, thereby increasing the brightness of the edge area of ​​the displayed image viewed by the user, alleviating the phenomenon of dark corners at the edges of the displayed image viewed by the user, and improving the user experience.

[0073] It should be noted that in Figures 8-11In a corresponding embodiment, the roughness of the second region of the second light modulator can be the same as that of the first region, or can be greater than that of the first region, to further increase the amount of light emitted by the second light-emitting unit 20 toward the first display area 101. This can increase the amount of light entering the user's eyes when the user is viewing the displayed image while standing directly in front of the display panel, thereby increasing the brightness of the edge areas of the displayed image viewed by the user, alleviating the phenomenon of dark corners at the edges of the displayed image viewed by the user, and improving the user experience. This is not limited in this application and will be determined based on specific circumstances.

[0074] Based on any of the above embodiments, in one embodiment of the present application, Figure 3 and Figure 14 As shown, the second display area 102 includes a first sub-display area 1021 and a second sub-display area 1022, and the first sub-display area 1021 and the second sub-display area 1022 are relatively located on both sides of the first display area 101; in a direction parallel to the plane where the display panel is located, the size D3 of the first sub-display area 1021 and the total size D4 of the display area of ​​the display panel satisfy D4 / 20≤D3≤D4 / 4, so that by reasonably setting the size of the first sub-display area 1021, the display brightness of the central area of ​​the display image viewed by the user is improved while the phenomenon of dark corners at the edges of the display image viewed by the user is not excessively affected; similarly, in a direction parallel to the plane where the display panel is located, the size D5 of the second sub-display area 1022 and the total size D4 of the display area of ​​the display panel satisfy D4 / 20≤D5≤D4 / 4, so that by reasonably setting the size of the second sub-display area 1022, the display brightness of the central area of ​​the display image is improved while the phenomenon of dark corners at the edges of the display image viewed by the user is not excessively affected. However, this application does not limit this and the specific circumstances will depend on the circumstances.

[0075] Optionally, in a direction parallel to the plane of the display panel, the size D3 of the first sub-display area 1021 and the size D5 of the second sub-display area 1022 are equal, but the present application does not limit this. In other embodiments of the present application, the size D3 of the first sub-display area 1021 and the size D5 of the second sub-display area 1022 may also be unequal, depending on the specific circumstances.

[0076] In addition, the embodiment of the present application also provides a display device, such as Figure 15As shown, the display device can be a mobile phone, a tablet computer, a wearable device, an in-vehicle device, an augmented reality (AR) / virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), etc., and the present application embodiment does not impose any restrictions on this. It should be noted that in this embodiment, the display device includes the display panel provided in any of the above embodiments. Since the relevant content of the display panel has been described in detail in the above embodiments, it will not be repeated here.

[0077] In summary, in the display device and display panel provided in the embodiments of the present application, the amount of light emitted by the second light-emitting unit 20 toward the first display area 101 is greater than the amount of light emitted by the first light-emitting unit 10 toward the second display area 102, thereby increasing the amount of light emitted from the second display area 102 toward the first display area 101, so that when the user is located directly in front of the display panel to view the displayed image, the amount of light entering the user's eyes in the edge area of ​​the displayed image can be increased, thereby increasing the brightness of the edge area of ​​the displayed image viewed by the user, alleviating the phenomenon of dark corners at the edges of the displayed image viewed by the user, and improving the user experience.

[0078] The various embodiments in this specification are described in a progressive, parallel, or combined manner. Each embodiment focuses on the differences from other embodiments, and reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For relevant parts, refer to the description of the methods.

[0079] It should be noted that, in the description of the present application, it should be understood that the description of the drawings and embodiments is illustrative rather than restrictive. It should also be noted that, in this article, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that the article or equipment comprising a series of elements includes not only those elements, but also includes other elements that are not clearly listed, or also includes elements that are inherent to such article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the presence of other identical elements in the article or equipment comprising the above elements.

[0080] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that: include: a plurality of first light-emitting units located in a first display area of ​​the display panel, wherein the first light-emitting units include a first light-emitting element and a first light modulating element located on a light-emitting side of the first light-emitting element; a plurality of second light-emitting units located in a second display area of ​​the display panel, the second light-emitting units including a second light-emitting element and a second light modulating element located on a light-emitting side of the second light-emitting element, wherein the second display area surrounds the first display area; The amount of light emitted from the second light emitting unit toward the first display area is greater than the amount of light emitted from the first light emitting unit toward the second display area.

2. The display panel according to claim 1, wherein: The first light modulation element has a first light modulation effect on the light emitted by the first light-emitting element, and the second light modulation element has a second light modulation effect on the light emitted by the second light-emitting element. The light distribution emitted by the first light-emitting element and the second light-emitting element is the same. The first light modulation effect and the second light modulation effect make the light emission amount of the second light-emitting unit toward the first display area side greater than the light emission amount of the first light-emitting unit toward the second display area side.

3. The display panel according to claim 2, wherein: The second light modulating element covers the light emitting side of the second light emitting element, and in a plane parallel to the display panel, the center of the second light modulating element coincides with the center of the second light emitting element.

4. The display panel according to claim 3, wherein: The light-emitting side surface of the first light modulator has a first roughness; the light-emitting side of the second light modulator includes a first area and a second area, and in a direction perpendicular to the plane of the display panel, the second area is located between the first area and the second light-emitting element, the first area of ​​the second light modulator has a second roughness, and the second area of ​​the second light modulator has a third roughness; The third roughness is greater than the first roughness.

5. The display panel according to claim 4, wherein: The third roughness is greater than the second roughness.

6. The display panel according to claim 4, wherein: A second region surface of the second light modulation element has a plurality of protrusions.

7. The display panel according to claim 6, wherein: In a direction perpendicular to the plane of the display panel, the maximum distance from the first area of ​​the second light modulator to the surface of the second light modulator facing the second light-emitting element is a first distance H1; the top of the protrusion to the bottom of the protrusion has a second distance H2, 0≤H2≤H1 / 4.

8. The display panel according to claim 7, wherein: The second distance H2 has a value range of 0.1 micrometer to 5 micrometers.

9. The display panel according to claim 4, wherein: In a direction perpendicular to the plane of the display panel, the maximum distance from the first area of ​​the second light modulator to the surface of the second light modulator facing the second light-emitting element is a first distance H1, and the maximum distance from the second area of ​​the second light modulator to the surface of the second light modulator facing the second light-emitting element is a third distance H3, H1 / 3≤H3≤2H1 / 3.

10. The display panel according to claim 3, wherein: In a direction perpendicular to the plane of the display panel, the second light modulator has a first position A farthest from the second light-emitting element; in a direction parallel to the plane of the display, the second light modulator has a second position B farthest from the first display area and a third position C closest to the first display area, and in a direction parallel to the plane of the display, the distance D1 between the first position A and the second position B is greater than the distance D2 between the first position A and the third position C.

11. The display panel according to claim 10, wherein: In a direction parallel to the plane where the display panel is located, the center position of the second position and the third position is the fourth position, and the angle θ between the line connecting the first position and the fourth position and the direction perpendicular to the plane where the display panel is located ranges from 5° to 60°.

12. The display panel according to claim 2, wherein: The second light modulating element covers the light emitting side of the second light emitting element, and in a plane parallel to the display panel, the center of the second light modulating element is closer to the first display area than the center of the second light emitting element.

13. The display panel according to claim 12, wherein: In a plane parallel to the display panel, a distance W1 between a center of the second light modulating element and a center of the second light emitting element is greater than 0.2 micrometers.

14. The display panel according to claim 1, wherein In a direction parallel to the plane where the display panel is located, a size of the second light modulation element is larger than a size of the second light emitting element.

15. The display panel according to claim 1, wherein The second display area includes a first sub-display area and a second sub-display area, and the first sub-display area and the second sub-display area are relatively located on both sides of the first display area; In a direction parallel to the plane where the display panel is located, a size D3 of the first sub-display area and a total size D4 of the display area of ​​the display panel satisfy D4 / 20≤D3≤D4 / 4; In a direction parallel to the plane where the display panel is located, a size D5 of the second sub-display area and a total size D4 of the display area of ​​the display panel satisfy D4 / 20≤D5≤D4 / 4.

16. The display panel according to claim 1, wherein The first light modulating element covers the light emitting side of the first light emitting element, and in a plane parallel to the display panel, the center of the first light modulating element coincides with the center of the first light emitting element.

17. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 16.

Images