Display panel and display apparatus

Abstract

The present application provides a display panel 1 and a display apparatus 1000. The display panel 1 comprises a first bent portion 11 and a body portion 13, which are connected. The display panel 1 is provided with a first area 21 and a second area 22, wherein part of the first area 21 is arranged corresponding to the first bent portion 11, and the second area 22 is arranged corresponding to the body portion 13. The display panel 1 further comprises a plurality of first light-emitting units 31 and a plurality of second light-emitting units 32, wherein the plurality of first light-emitting units 31 are arranged in the first area 21, and the first light-emitting units 31 have a first light emission area; the plurality of second light-emitting units 32 are arranged in the second area 22, and the second light-emitting units 32 have a second light emission area; the first light emission area is smaller than the second light emission area; and the density of the first light-emitting units 31, which are in the first area 21, is greater than the density of the second light-emitting units 32, which are in the second area 22. With regard to the display panel 1 in the present application, the phenomenon of a green or purple edge being easily generated at a high-curvature position in the display panel 1, etc., can be avoided.

Description

Display panel and display device

[0001] This application claims priority to the prior application entitled “Display Panel and Display Device” with application number 202210809914.7 filed on July 11, 2022. The contents of the above-mentioned prior application are incorporated into this text by reference. Technical Field

[0002] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0003] With the advancement of optoelectronic display technology and semiconductor manufacturing, displays using thin-film transistors (TFTs) have become increasingly mature. Displays such as thin-film transistor liquid crystal displays (TFT-LCDs) and organic light-emitting diodes (TFT-OLEDs) have achieved successful mass production. OLED displays offer significant advantages in thickness, color saturation, contrast, and flexibility, and their development holds broad prospects.

[0004] Existing flexible OLED display panels are widely used in mobile phone products, and most of them are highly curved products. The highly curved design of OLED display panels can give mobile phone products a larger viewing area. However, at certain low grayscale levels in the highly curved areas of the OLED display panel (the junction of the flat area and the curved area), mura phenomena such as green or purple edges are easily generated, affecting the overall display effect.

[0005] Application Contents

[0006] The purpose of the present application is to provide a display panel and a display device to solve the technical problem of mura phenomenon such as green or purple edges easily occurring at certain low grayscales at high curvature positions in OLED display panels.

[0007] In a first aspect, the present application provides a display panel comprising a first bent portion and a main portion connected by a bend, the display panel having a first area and a second area, at least a portion of the first area being arranged corresponding to the first bent portion, and the second area being arranged corresponding to the main portion, the display panel further comprising:

[0008] A plurality of first light-emitting units are provided in the first region, wherein the first light-emitting units have a first light-emitting area;

[0009] A plurality of second light-emitting units are provided in the second region, the second light-emitting units have a second light-emitting area, the first light-emitting area is smaller than the second light-emitting area, and the density of the first light-emitting units in the first region is greater than the density of the second light-emitting units in the second region.

[0010] In the display panel provided by the present application, the first light-emitting area of ​​the first light-emitting unit in the first region is smaller than the second light-emitting area of ​​the second light-emitting unit in the second region. The brightness difference between adjacent first light-emitting units observed by the human eye is smaller than the brightness difference between the second light-emitting units with the second light-emitting area, and the color point difference between adjacent first light-emitting units observed by the human eye is also smaller than the color point difference between the second light-emitting units with the second light-emitting area. The smaller the brightness and chromaticity interference between adjacent first light-emitting units, the more it can avoid the phenomenon that the edges of high curvature positions (the junction of the flat area and the bending area) in the display panel are easily green or purple under certain low grayscales.

[0011] While the first light-emitting area of ​​the first light-emitting unit in the first region is smaller than the second light-emitting area of ​​the second light-emitting unit in the second region, the density of the first light-emitting units in the first region is greater than the density of the second light-emitting units in the second region. This can reduce the brightness and chromaticity interference between adjacent first light-emitting units in the first region while ensuring the continuity of the overall light emission of the first light-emitting units in the first region, thereby improving the uniformity of the overall light emission of the display panel.

[0012] In summary, compared with the related art in which the entire panel is provided with light-emitting units of the same light-emitting area, in the display panel provided by the present application, the light-emitting units in the first area have a finer light display, thereby improving the mixed color display difference of the display panel to a greater extent.

[0013] The first region includes a first sub-region and a second sub-region, the second sub-region is arranged between the first sub-region and the second region, the first sub-region is arranged corresponding to the first bending portion, and the second sub-region and the second region are both arranged corresponding to the main body portion.

[0014] The width of the second sub-region is equal to the width of the second light-emitting unit.

[0015] The ratio of the first light-emitting area to the second light-emitting unit area is in the range of 1 / 2-2 / 3.

[0016] The ratio of the density of the first light-emitting units in the first region to the density of the second light-emitting units in the second region is in a range of 1.5-2.

[0017] The first light-emitting area of ​​the first light-emitting unit is inversely proportional to the curvature of the first bending portion.

[0018] The display panel further includes a second bent portion, the second bent portion being bent and connected to the main body portion, the display panel further includes a third area, at least a portion of the third area being arranged corresponding to the second bent portion, and the display panel further includes:

[0019] A plurality of third light-emitting units are arranged in the third region, each of the third light-emitting units having a third light-emitting area; the third light-emitting area is smaller than the second light-emitting area, and the density of the third light-emitting units in the third region is greater than the density of the second light-emitting units in the second region.

[0020] The third region includes a third sub-region and a fourth sub-region, the third sub-region is arranged between the second region and the fourth sub-region, the fourth sub-region is arranged corresponding to the second bending portion, and the third sub-region is arranged corresponding to the main body portion.

[0021] The width of the third sub-region is equal to the width of the second light-emitting unit.

[0022] In a second aspect, the present application provides a display panel comprising a first bent portion and a main body connected by a bend, wherein the first bent portion has a first display surface, the first display surface being a curved surface, and the main body has a second display surface, the second display surface being a flat surface, the second display surface comprising a main display surface and a first sub-display surface adjacent to the first display surface, the display panel further comprising:

[0023] a plurality of first light-emitting units, arranged corresponding to the first display surface and the first sub-display surface, the first light-emitting units having a first light-emitting area;

[0024] Multiple second light-emitting units are arranged corresponding to the main display surface, the second light-emitting units have a second light-emitting area, the first light-emitting area is smaller than the second light-emitting area, and the density of the first light-emitting units corresponding to the first display surface and the first sub-display surface is greater than the density of the second light-emitting units corresponding to the main display surface.

[0025] Wherein, the width of the first sub-display surface is equal to the width of the second light-emitting unit.

[0026] The ratio of the first light-emitting area to the second light-emitting area is in the range of 1 / 2-2 / 3.

[0027] The ratio of the density of the first light-emitting units corresponding to the first display surface and the first sub-display surface to the density of the second light-emitting units corresponding to the main display surface is in a range of 1.5-2.

[0028] Wherein, the first display surface is a convex curved surface.

[0029] In a third aspect, the present application provides a display device, comprising a housing and the display panel, wherein the housing is used to support the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] FIG1 is a schematic cross-sectional view of a display panel according to a first embodiment of the present application;

[0032] FIG2 is a schematic top view of a display panel according to the first embodiment of the present application;

[0033] FIG3 is a schematic top view of a display panel according to a second embodiment of the present application;

[0034] FIG4 is a schematic diagram of a cross-sectional structure of a display panel provided in Embodiment 3 of the present application;

[0035] FIG5 is a schematic top view of a display panel according to a third embodiment of the present application;

[0036] FIG6 is a schematic diagram of the structure of a light-emitting unit of a display panel provided in Embodiment 4 of the present application;

[0037] FIG7 is a schematic diagram of the structure of a light-emitting unit of a display panel provided in Embodiment 5 of the present application;

[0038] FIG8 is a schematic structural diagram of a display device provided in Embodiment 6 of the present application;

[0039] FIG9 is a schematic diagram of a cross-sectional structure of a display panel provided in Embodiment 7 of the present application.

[0040] Description of labels:

[0041] Display device-1000, display panel-1, shell-2, first bending portion-11, first display surface-111, second bending portion-12, main body-13, second display surface-131, main body display surface-1311, first sub-display surface-1312, first area-21, first sub-area-211, second sub-area-212, second area-22, third area-23, third sub-area-231, fourth sub-area-232, first light-emitting unit-31, second light-emitting unit-32, third light-emitting unit-33. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in 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 in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] References herein to "embodiments" or "implementations" mean that a particular feature, structure, or characteristic described in connection with the embodiments or implementations may be included in at least one embodiment of the present application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0044] It should be noted that the terms "first," "second," and so on in the specification, claims, and drawings of this application are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0045] In this specification, for convenience, words and phrases indicating orientation or positional relationships, such as "middle," "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inside," and "outside," are used to illustrate the positional relationships of constituent elements with reference to the accompanying drawings. This is merely for the purpose of facilitating the description of this specification and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present disclosure. The positional relationships of constituent elements may be appropriately changed depending on the orientation of the constituent elements being described. Therefore, the present disclosure is not limited to the words and phrases described in the specification and may be appropriately replaced depending on the circumstances.

[0046] In this specification, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral connections; they can refer to mechanical connections or connections; they can refer to direct connections, indirect connections through intermediaries, or internal communication between two components. Those skilled in the art will understand the meaning of these terms in this disclosure based on the circumstances.

[0047] With the advancement of optoelectronic display technology and semiconductor manufacturing, displays using thin-film transistors (TFTs) have become increasingly mature. Displays such as thin-film transistor liquid crystal displays (TFT-LCDs) and organic light-emitting diodes (TFT-OLEDs) have achieved successful mass production. OLED displays offer significant advantages in thickness, color saturation, contrast, and flexibility, and their development holds broad prospects.

[0048] Existing flexible OLED display panels are widely used in mobile phone products, and most of them are highly curved products. The highly curved design of OLED display panels can give mobile phone products a larger viewing area. However, at certain low grayscales in the highly curved position of the OLED display panel (the junction of the flat area and the curved area), the brightness and color between adjacent light-emitting units are prone to interfere with each other, which in turn causes the display panel to produce mura phenomena such as green or purple edges, affecting the overall display effect.

[0049] The present application provides a display panel 1 that can solve the technical problem of Mura phenomenon such as green or purple edges that are easily generated at certain low grayscales at high-curvature positions in OLED display panels.

[0050] Please refer to Figures 1 and 2. Figure 1 is a schematic diagram of the cross-sectional structure of a display panel provided in Embodiment 1 of the present application. Figure 2 is a schematic diagram of the top view of a display panel provided in Embodiment 1 of the present application. The display panel 1 includes a first bent portion 11 and a main body portion 13, which are connected by a bend. In other words, the first bent portion 11 is a curved panel with a certain curvature, and the main body portion 13 is a flat panel. Optionally, the present application does not specifically limit the curvature of the first bent portion 11.

[0051] The display panel 1 has a first region 21 and a second region 22. At least a portion of the first region 21 corresponds to the first bent portion 11, and the second region 22 corresponds to the main body 13. Specifically, in this embodiment, a portion of the first region 21 corresponds to the first bent portion 11, and another portion corresponds to the main body 13. In other embodiments, the first region 21 may correspond only to the first bent portion 11, and this is not limited in this application.

[0052] The display panel 1 further includes a plurality of first light-emitting units 31 and a plurality of second light-emitting units 32. The plurality of first light-emitting units 31 are disposed in the first region 21 and have a first light-emitting area. The plurality of second light-emitting units 32 are disposed in the second region 22 and have a second light-emitting area. The first light-emitting area is smaller than the second light-emitting area, and the density of the first light-emitting units 31 in the first region 21 is greater than the density of the second light-emitting units 32 in the second region 22.

[0053] It should be noted that, optionally, the first light-emitting area includes, but is not limited to, the area of ​​the light-emitting layer in the first light-emitting unit 31. The first light-emitting area may also be the light-emitting area defined by the pixel definition layer in the first light-emitting unit 31 or other light-emitting area. This application does not impose specific limitations on this. Similarly, the second light-emitting area includes, but is not limited to, the area of ​​the light-emitting layer in the second light-emitting unit 32. The second light-emitting area may also be the light-emitting area defined by the pixel definition layer in the second light-emitting unit 32 or other light-emitting area.

[0054] The display panel 1 provided in the present application has the first light-emitting area of ​​the first light-emitting unit 31 in the first area 21 smaller than the second light-emitting area of ​​the second light-emitting unit 32 in the second area 22. The brightness difference between adjacent first light-emitting units 31 observed by the human eye is smaller than the brightness difference between the second light-emitting units 32 having the second light-emitting area, and the color point difference between adjacent first light-emitting units 31 observed by the human eye is also smaller than the color point difference between the second light-emitting units 32 having the second light-emitting area. The smaller the brightness and chromaticity interference between adjacent first light-emitting units 31, the more it can avoid the phenomenon that the high curvature position (the junction of the flat area and the bending area) in the display panel 1 is prone to green or purple edges under certain low grayscales.

[0055] The first light-emitting area of ​​the first light-emitting unit 31 in the first region 21 is smaller than the second light-emitting area of ​​the second light-emitting unit 32 in the second region 22, and the density of the first light-emitting unit 31 in the first region 21 is greater than the density of the second light-emitting unit 32 in the second region 22. This can reduce the brightness and chromaticity interference between adjacent first light-emitting units 31 in the first region 21 while ensuring the continuity of the overall light emission of the first light-emitting unit 31 in the first region 21, thereby improving the uniformity of the overall light emission of the display panel 1.

[0056] To sum up, compared with the related art in which the entire panel is provided with light-emitting units of the same light-emitting area, in the display panel 1 provided in the present application, the light-emitting units in the first area 21 have a more refined light-emitting display, thereby improving the mixed color display difference of the display panel 1 to a greater extent.

[0057] In this embodiment, the first bent portion 11 represents a portion of the display panel 1 that is curved when viewed from a cross-section. In another embodiment, the first bent portion 11 may also represent a portion of the display panel 1 where the edge of the display panel 1 is a curved portion when viewed from a top view, as shown in FIG3 , which is a schematic diagram of a top-view structure of a display panel provided in Embodiment 2 of the present application.

[0058] Please refer to Figure 1 and Figure 2 again. In this embodiment, the first area 21 includes a first sub-area 211 and a second sub-area 212. The second sub-area 212 is arranged between the first sub-area 211 and the second area 22. The first sub-area 211 is arranged corresponding to the first bending portion 11, and the second sub-area 212 and the second area 22 are both arranged corresponding to the main body 13.

[0059] Specifically, a plurality of first light-emitting units 31 having the first light-emitting area are disposed on both the first sub-region 211 and the second sub-region 212. The first sub-region 211 is disposed corresponding to the first bent portion 11, and the second sub-region 212 is disposed corresponding to the main body 13, and the first sub-region 211 and the second sub-region 212 are disposed adjacent to each other. In other words, a plurality of first light-emitting units 31 having the first light-emitting area are disposed on opposite sides of the intersection of the first bent portion 11 and the main body 13 in the display panel 1. This can reduce the difference in display brightness and color points on opposite sides of the intersection of the first bent portion 11 and the main body 13 in the display panel 1, improve the light emission uniformity on opposite sides of the intersection of the first bent portion 11 and the main body 13 in the display panel 1, and enhance the display effect at the intersection of the first bent portion 11 and the main body 13.

[0060] Specifically, if the width of the second sub-region 212 is too small, the effect of reducing the display brightness difference and color point difference on the opposite sides of the intersection of the first bending portion 11 and the main body portion 13 may not be sufficient. If the width of the second sub-region 212 is too large, more of the main body portion 13 will be provided with the first light-emitting units 31, and the precision of the first light-emitting units 31 will be greater. Providing more first light-emitting units 31 may lead to a decrease in the overall production yield of the display panel 1.

[0061] In this embodiment, referring again to Figures 1 and 2 , the width of the second sub-region 212 is equal to the width of the second light-emitting unit 32. The width of the second light-emitting unit 32 is the maximum dimension at opposite ends of the second light-emitting unit 32. The width of the second sub-region 212 is equal to the maximum dimension at opposite ends of the second light-emitting unit 32. This effectively reduces the difference in display brightness and color points on opposite sides of the intersection of the first bent portion 11 and the main body 13, while also ensuring that the overall manufacturing yield of the display panel 1 is not reduced.

[0062] Optionally, in other embodiments, the width of the second sub-region 212 may also be adjusted according to the specifications of the display panel 1 , which is not specifically limited in this application.

[0063] It should be noted that, in this embodiment, there are certain requirements for the ratio of the first light-emitting area of ​​the first light-emitting unit 31 to the second light-emitting area of ​​the second light-emitting unit 32. The smaller the first light-emitting area, the more difficult it is to prepare the first light-emitting unit 31. If the ratio of the first light-emitting area to the area of ​​the second light-emitting unit 32 is less than 1 / 2, providing a large number of first light-emitting units 31 with smaller first light-emitting areas may result in a decrease in the overall production yield of the display panel 1, or it may be necessary to increase the density of the first light-emitting units 31 in the first region 21, requiring the preparation of more first light-emitting units 31, which may also result in a decrease in the overall production yield of the display panel 1. If the ratio of the first light-emitting area to the area of ​​the second light-emitting unit 32 is greater than 2 / 3, the first region 21 may not be sufficiently effective in reducing the display brightness difference and color point difference compared to the bending region of the display panel in the related art.

[0064] In summary, in this embodiment, referring again to FIG. 1 and FIG. 2 , the ratio of the first light-emitting area to the second light-emitting area is in the range of 1 / 2 to 2 / 3. This ensures that the overall manufacturing yield of the display panel 1 does not decrease, while also minimizing the difference in display brightness and color points in the first region 21.

[0065] The ratio of the first light-emitting area to the second light-emitting area ranges from 1 / 2 to 2 / 3. Optionally, the ratio of the first light-emitting area to the second light-emitting area can be 1 / 2, or 7 / 12, or 2 / 3, or other values ​​within 1 / 2-2 / 3. This application does not make any specific limitations on this.

[0066] Similarly, in this embodiment, there are certain requirements for the ratio of the density of the first light-emitting units 31 in the first region 21 to the density of the second light-emitting units 32 in the second region 22. If the ratio of the density of the first light-emitting units 31 in the first region 21 to the density of the second light-emitting units 32 in the second region 22 is less than 1.5, the light-emitting display of the first region 21 may not be dense enough, affecting the overall display effect. If the ratio of the density of the first light-emitting units 31 in the first region 21 to the density of the second light-emitting units 32 in the second region 22 is greater than 2, more first light-emitting units 31 need to be prepared, which may also reduce the overall production yield of the display panel 1.

[0067] In summary, in this embodiment, referring again to FIG. 1 and FIG. 2 , the ratio of the density of the first light-emitting units 31 in the first region 21 to the density of the second light-emitting units 32 in the second region 22 is in the range of 1.5-2. This can improve the overall display effect of the display panel 1 while also ensuring that the overall manufacturing yield of the display panel 1 is not reduced.

[0068] The ratio of the density of the first light-emitting unit 31 in the first area 21 to the density of the second light-emitting unit 32 in the second area 22 is in the range of 1.5-2. Optionally, the ratio of the density of the first light-emitting unit 31 in the first area 21 to the density of the second light-emitting unit 32 in the second area 22 can be 1.5, or 1.6, or 1.7, or 1.8, or 1.9, or 2.0, or other values ​​within 1.5-2.

[0069] Referring again to FIG. 1 and FIG. 2 , the first light-emitting area of ​​the first light-emitting unit 31 is inversely proportional to the curvature of the first bent portion 11 .

[0070] Specifically, the greater the curvature of the first bent portion 11 (in other words, the greater the curvature of the first bent portion 11), the smaller the first light-emitting area of ​​the first light-emitting unit 31 in the first region 21, thereby reducing the brightness difference and color point difference between adjacent first light-emitting units 31 in the first region 21. Similarly, if the curvature of the first bent portion 11 is smaller (in other words, the smaller the curvature of the first bent portion 11), the larger the first light-emitting area of ​​the first light-emitting unit 31. If the curvature of the first bent portion 11 is zero, the first light-emitting area of ​​the first light-emitting unit 31 is close to or equal to the second light-emitting area of ​​the second light-emitting unit 32.

[0071] In this embodiment, the density of the first light-emitting units 31 in the first area 21 is proportional to the curvature of the first bending portion 11, that is, the greater the curvature of the first bending portion 11 (in other words, the greater the bending arc of the first bending portion 11), the greater the density of the first light-emitting units 31 in the first area 21 is set, which can also reduce the brightness difference and color point difference between adjacent first light-emitting units 31 in the first area 21.

[0072] It should be noted that, optionally, in one embodiment, the first light-emitting area of ​​the first light-emitting unit 31 may be inversely proportional to the curvature of the first bending portion 11, and the density of the first light-emitting units 31 in the first region 21 may be independent of the curvature of the first bending portion 11; in another embodiment, the density of the first light-emitting units 31 in the first region 21 may be directly proportional to the curvature of the first bending portion 11, and the first light-emitting area of ​​the first light-emitting unit 31 may be independent of the curvature of the first bending portion 11; in yet another embodiment, the first light-emitting area of ​​the first light-emitting unit 31 may be inversely proportional to the curvature of the first bending portion 11, and the density of the first light-emitting units 31 in the first region 21 may be directly proportional to the curvature of the first bending portion 11.

[0073] Please refer to Figures 4 and 5. Figure 4 is a schematic diagram of the cross-sectional structure of a display panel provided in the third embodiment of the present application. Figure 5 is a schematic diagram of the top view of a display panel provided in the third embodiment of the present application. The display panel 1 also includes a second bending portion 12, and the second bending portion 12 is bent and connected to the main body portion 13. The display panel 1 also has a third area 23, and at least part of the third area 23 is arranged corresponding to the second bending portion 12. Specifically, in this embodiment, a part of the third area 23 is arranged corresponding to the second bending portion 12, and the other part is arranged corresponding to the main body portion 13. In other embodiments, the third area 23 may also be arranged only corresponding to the second bending portion 12, and this application does not limit this.

[0074] The display panel 1 further includes a plurality of third light-emitting units 33. The plurality of third light-emitting units 33 are disposed in the third region 23 and have a third light-emitting area. The third light-emitting area of ​​the third light-emitting units 33 is smaller than the second light-emitting area of ​​the second light-emitting units 32, and the density of the third light-emitting units 33 in the third region 23 is greater than the density of the second light-emitting units 32 in the second region 22.

[0075] Optionally, the second light-emitting area includes but is not limited to the area of ​​the light-emitting layer in the second light-emitting unit 32. The second light-emitting area can also be the light-emitting area defined by the pixel definition layer in the second light-emitting unit 32 or other light-emitting area. This application does not make any specific limitations on this.

[0076] In the display panel 1 provided in the present application, the third light-emitting area of ​​the third light-emitting unit 33 in the third region 23 is smaller than the second light-emitting area of ​​the second light-emitting unit 32 in the second region 22. The brightness difference between adjacent third light-emitting units 33 observed by the human eye is smaller than the brightness difference of the second light-emitting units 32 having the second light-emitting area, and the color point difference between adjacent third light-emitting units 33 observed by the human eye is also smaller than the color point difference of the second light-emitting unit 32 having the second light-emitting area. The smaller the brightness and chromaticity interference between adjacent third light-emitting units 33, the green or purple edge phenomenon that is easily generated at certain low grayscales in high curvature positions (the junction of the flat area and the bending area) in the display panel 1 can be avoided.

[0077] The third light-emitting area of ​​the third light-emitting unit 33 in the third region 23 is smaller than the second light-emitting area of ​​the second light-emitting unit 32 in the second region 22, and the density of the third light-emitting unit 33 in the third region 23 is greater than the density of the second light-emitting unit 32 in the second region 22. This can reduce the brightness and chromaticity interference between adjacent third light-emitting units 33 in the third region 23 while ensuring the continuity of the overall light emission of the third light-emitting unit 33 in the third region 23, thereby improving the uniformity of the overall light emission of the display panel 1.

[0078] Please refer to Figures 4 and 5 again. In this embodiment, the third area 23 includes a third sub-area 231 and a fourth sub-area 232. The third sub-area 231 is arranged between the second area 22 and the fourth sub-area 232. The fourth sub-area 232 is arranged corresponding to the second bending portion 12, and the third sub-area 231 is arranged corresponding to the main body 13.

[0079] Specifically, a plurality of first light-emitting units 31 having the first light-emitting area are disposed on both the fourth sub-region 232 and the third sub-region 231. The fourth sub-region 232 is disposed corresponding to the second bent portion 12, and the third sub-region 231 is disposed corresponding to the main body 13. Furthermore, the fourth sub-region 232 is disposed adjacent to the third sub-region 231. In other words, a plurality of third light-emitting units 33 having the third light-emitting area are disposed on opposite sides of the intersection of the second bent portion 12 and the main body 13 in the display panel 1. This can reduce differences in display brightness and color points on opposite sides of the intersection of the second bent portion 12 and the main body 13 in the display panel 1, improve light emission uniformity on opposite sides of the intersection of the second bent portion 12 and the main body 13 in the display panel 1, and enhance the display effect at the intersection of the second bent portion 12 and the main body 13.

[0080] Specifically, if the width of the third sub-region 231 is too small, the effect of reducing the display brightness difference and color point difference on the opposite sides of the intersection of the second bending portion 12 and the main body portion 13 may not be sufficient. If the width of the third sub-region 231 is too large, more of the main body portion 13 will be provided with the third light-emitting unit 33, and the precision of the third light-emitting unit 33 will be greater. Providing more third light-emitting units 33 may lead to a decrease in the overall production yield of the display panel 1.

[0081] In this embodiment, referring again to Figures 4 and 5 , the width of the third sub-region 231 is equal to the width of the second light-emitting unit 32. The width of the third light-emitting unit 33 is the maximum dimension between its two opposing ends. The width of the third sub-region 231 being equal to the maximum dimension between its two opposing ends ensures that the difference in display brightness and color points between the opposing sides of the intersection of the second bent portion 12 and the main body 13 is effectively reduced while also ensuring that the overall manufacturing yield of the display panel 1 is not reduced.

[0082] Optionally, in other embodiments, the width of the third sub-region 231 may also be adjusted according to the specifications of the display panel 1 , which is not specifically limited in this application.

[0083] The ratio of the third light-emitting area to the second light-emitting area is in the range of 1 / 2-2 / 3. This can not only ensure that the overall manufacturing yield of the display panel 1 does not decrease, but also maximize the effect of reducing the brightness difference and color point difference of the third area 23. The ratio of the density of the third light-emitting unit 33 in the third area 23 to the density of the second light-emitting unit 32 in the second area 22 is in the range of 1.5-2. Optionally, the ratio of the density of the third light-emitting unit 33 in the third area 23 to the density of the second light-emitting unit 32 in the second area 22 can be 1.5, or 1.6, or 1.7, or 1.8, or 1.9, or 2.0, or other values ​​within the range of 1.5-2.

[0084] It should be noted that, in the display panel 1 provided in the present application, there is no specific limitation on the shape of the first light-emitting unit 31, the second light-emitting unit 32 and the third light-emitting unit 33. It only names the light-emitting units in different areas differently. The shapes and functions of the multiple first light-emitting units 31 may be the same or different, the shapes and functions of the multiple second light-emitting units 32 may be the same or different, and the shapes and functions of the multiple third light-emitting units 33 may be the same or different. The present application does not limit this. Specifically, please refer to Figures 6 and 7. Figure 6 is a schematic diagram of the light-emitting unit structure of a display panel provided in embodiment 4 of the present application. Figure 7 is a schematic diagram of the light-emitting unit structure of a display panel provided in embodiment 5 of the present application. The technical means of the display panel 1 described in the present application can also be applied to the layout of the light-emitting units described in Figures 6 and 7, all of which fall within the scope of protection of the present application.

[0085] Please refer to FIG8 , which is a schematic structural diagram of a display device provided in Embodiment 6 of the present application. The present application provides a display device 1000 , comprising a housing 2 and the display panel 1 , wherein the housing 2 is used to support the display panel 1 .

[0086] Optionally, the housing 2 includes but is not limited to being made of plastic or other relatively hard materials to protect the display panel 1 to the greatest extent possible.

[0087] Please refer to FIG. 9 and FIG. 2 . FIG. 9 is a schematic diagram of a cross-sectional structure of a display panel provided in Embodiment 7 of the present application.

[0088] The present application also provides a display panel 1, comprising a first bending portion 11 and a main body portion 13 that are bent and connected to each other, wherein the first bending portion 11 has a first display surface 111, the first display surface 111 is a curved surface, and the main body portion 13 has a second display surface 131, the second display surface 131 is a plane, and the second display surface 131 includes a main body display surface 1311 and a first sub-display surface 1312 adjacent to the first display surface 111.

[0089] The display panel 1 further includes a plurality of first light-emitting units 31 and a plurality of second light-emitting units 32, which are arranged corresponding to the first display surface 111 and the first sub-display surface 1312. The first light-emitting units 31 have a first light-emitting area. The plurality of second light-emitting units 32 are arranged corresponding to the main display surface 1311, and the second light-emitting units 31 have a second light-emitting area. The first light-emitting area is smaller than the second light-emitting area, and the density of the first light-emitting units 31 corresponding to the first display surface 111 and the first sub-display surface 1312 is greater than the density of the second light-emitting units 32 corresponding to the main display surface 1311.

[0090] The display panel 1 provided in the present application, the first light-emitting area of ​​the first light-emitting unit 31 corresponding to the first display surface 111 and the first sub-display surface 1312 is smaller than the second light-emitting area of ​​the second light-emitting unit 32 corresponding to the main display surface 1311, the brightness difference between adjacent first light-emitting units 31 observed by the human eye is smaller than the brightness difference of the second light-emitting units 32 with the second light-emitting area, and the color point difference between adjacent first light-emitting units 31 observed by the human eye is also smaller than the color point difference of the second light-emitting unit 32 with the second light-emitting area. The smaller the brightness and chromaticity interference between adjacent first light-emitting units 31, the more it can avoid the phenomenon that the high curvature position (the junction of the flat area and the bending area) in the display panel 1 is prone to green or purple edges under certain low grayscales.

[0091] The first light-emitting area of ​​the first light-emitting unit 31 corresponding to the first display surface 111 and the first sub-display surface 1312 is smaller than the second light-emitting area of ​​the second light-emitting unit 32 corresponding to the main display surface 1311, and the density of the first light-emitting units 31 corresponding to the first display surface 111 and the first sub-display surface 1312 is greater than the density of the second light-emitting units 32 corresponding to the main display surface 1311. This can reduce the brightness and chromaticity interference between the first light-emitting units 31 corresponding to the first display surface 111 and the first sub-display surface 1312 while ensuring the continuity of the overall light emission of the first light-emitting units 31 corresponding to the first display surface 111 and the first sub-display surface 1312, thereby improving the uniformity of the overall light emission of the display panel 1.

[0092] To sum up, compared with the related art in which the entire panel is provided with light-emitting units with the same light-emitting area, in the display panel 1 provided in the present application, the light-emitting display of the light-emitting units corresponding to the first display surface 111 and the first sub-display surface 1312 will be more refined, and the mixed color display difference of the display panel 1 will be improved to a greater extent.

[0093] The width of the first sub-display surface 1312 is equal to the width of the second light-emitting unit 32. This can effectively reduce the difference in display brightness and color points on opposite sides of the intersection of the first bent portion 11 and the main body 13, while also ensuring that the overall manufacturing yield of the display panel 1 is not reduced.

[0094] The ratio of the first luminous area to the second luminous area is in the range of 1 / 2 to 2 / 3, which can not only ensure that the overall manufacturing yield of the display panel 1 does not decrease, but also maximize the effect of reducing the difference in display brightness and color points between the first display surface 111 and the first sub-display surface 1312.

[0095] The ratio of the density of the first light-emitting units 31 corresponding to the first display surface 111 and the first sub-display surface 1312 to the density of the second light-emitting units 32 corresponding to the main display surface 1311 is in the range of 1.5-2. This can improve the overall display effect of the display panel 1 while ensuring that the overall manufacturing yield of the display panel 1 is not reduced.

[0096] In this embodiment, the first display surface 111 is a convex curved surface.

[0097] The above is part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A display panel, comprising a first bending portion and a main body portion connected by bending, wherein: The display panel has a first area and a second area, at least a portion of the first area is arranged corresponding to the first bending portion, and the second area is arranged corresponding to the main body portion, and the display panel further includes: A plurality of first light emitting units are disposed in the first region, and the first light emitting units have a first light emitting area; A plurality of second light emitting units are arranged in the second region, the second light emitting units have a second light emitting area, the first light emitting area is smaller than the second light emitting area, and the density of the first light emitting units in the first region is greater than the density of the second light emitting units in the second region.

2. The display panel according to claim 1, wherein: The first region includes a first sub-region and a second sub-region, the second sub-region is arranged between the first sub-region and the second region, the first sub-region is arranged corresponding to the first bending portion, and the second sub-region and the second region are both arranged corresponding to the main body portion.

3. The display panel according to claim 2, wherein: The width of the second sub-region is equal to the width of the second light emitting unit.

4. The display panel according to claim 1, wherein: The ratio of the first light emitting area to the second light emitting area is in the range of 1 / 2-2 / 3.

5. The display panel according to claim 1, wherein: The ratio of the density of the first light-emitting units in the first region to the density of the second light-emitting units in the second region is in the range of 1.5-2.

6. The display panel according to claim 2, wherein: The first light emitting area of ​​the first light emitting unit is inversely proportional to the curvature of the first bending portion.

7. The display panel according to any one of claims 1 to 5, wherein: The display panel further includes a second bending portion, the second bending portion is bent and connected to the main body, the display panel further includes a third area, at least part of the third area is arranged corresponding to the second bending portion, and the display panel further includes: A plurality of third light-emitting units are arranged in the third region, and the third light-emitting units have a third light-emitting area; the third light-emitting area is smaller than the second light-emitting area, and the density of the third light-emitting units in the third region is greater than the density of the second light-emitting units in the second region.

8. The display panel according to claim 7, wherein: The third region includes a third sub-region and a fourth sub-region. The third sub-region is disposed between the second region and the fourth sub-region. The fourth sub-region is disposed corresponding to the second bending portion. The third sub-region is disposed corresponding to the main body portion.

9. The display panel according to claim 8, wherein: The width of the third sub-region is equal to the width of the second light emitting unit.

10. A display panel, comprising a first bending portion and a main body portion connected by bending, wherein: The first bending portion has a first display surface, the first display surface is a curved surface, the main body portion has a second display surface, the second display surface is a flat surface, the second display surface includes a main body display surface and a first sub-display surface adjacent to the first display surface, and the display panel further includes: A plurality of first light-emitting units are arranged corresponding to the first display surface and the first sub-display surface, and the first light-emitting units have a first light-emitting area; A plurality of second light-emitting units are arranged corresponding to the main display surface, the second light-emitting units have a second light-emitting area, the first light-emitting area is smaller than the second light-emitting area, and the density of the first light-emitting units corresponding to the first display surface and the first sub-display surface is greater than the density of the second light-emitting units corresponding to the main display surface.

11. The display panel according to claim 10, wherein: The width of the first sub-display surface is equal to the width of the second light-emitting unit.

12. The display panel according to claim 10, wherein: The ratio of the first light emitting area to the second light emitting area is in the range of 1 / 2-2 / 3.

13. The display panel according to claim 10, wherein: The ratio of the density of the first light-emitting units corresponding to the first display surface and the first sub-display surface to the density of the second light-emitting units corresponding to the main display surface is in the range of 1.5-2.

14. The display panel according to claim 10, wherein: The first display surface is a convex curved surface.

15. A display device, wherein: It comprises a shell and a display panel according to any one of claims 1 to 14, wherein the shell is used to carry the display panel.

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