Display panel and display device

Abstract

The invention relates to a display panel and a display device, and relates to the technical field of display, the display panel comprises a display area, the display area comprises a first area and a second area located on at least one side of the first area; at least part of the first region comprises a first light-emitting element, and the second region comprises a second light-emitting element; the light emitting directions of the first light emitting element and the second light emitting element are opposite. Therefore, double-sided display in the thickness direction can be realized on a complete display panel, lightening and thinning of the display panel are facilitated, furthermore, the same picture content or different picture contents can be displayed on the front and back surfaces according to requirements, and diversified requirements of users are met.

Description

Technical Field

[0001] The present disclosure relates to the field of display technologies, and particularly to a display panel and a display device. Background Art

[0002] Currently, most display panels are for single-sided display. However, in many scenarios, such as digital signage, window inquiry facilities, and advertising playback facilities in public places like exhibition halls, there are often situations where two people view the display screen simultaneously from the front and back sides of the display panel.

[0003] Organic Light-Emitting Diode (OLED) has the advantages of a wide color gamut, high contrast ratio, self-luminescence, and being thin, light, and foldable, which has attracted extensive attention in application fields such as display and lighting. Making a double-sided display panel using OLED is a trend in OLED applications. The double-sided display technology can effectively expand the display area of the OLED panel and give full play to the thin and light advantages of the OLED panel. However, even if two fabricated OLED display panels are adhered back-to-back so that one display panel emits light towards one side and the other display panel emits light towards the other side, two complete display panels still need to be fabricated separately to achieve double-sided display, which is not conducive to achieving thinness and lightness and has a high cost.

[0004] Therefore, how to achieve double-sided display on a single display panel without increasing production costs is a technical problem that those skilled in the art urgently need to solve. Summary of the Invention

[0005] To solve the above technical problems, the present disclosure provides a display panel and a display device for achieving double-sided display on a single complete display panel without increasing production costs.

[0006] In a first aspect, the present disclosure provides a display panel, including a display area, where the display area includes a first area and a second area located on at least one side of the first area; at least a part of the first area includes first light-emitting elements, and the second area includes second light-emitting elements; the light-emitting directions of the first light-emitting elements and the second light-emitting elements are opposite.

[0007] In a second aspect, the present disclosure provides a display device including the display panel as described in the first aspect.

[0008] The technical solutions provided by the embodiments of the present disclosure have the following advantages compared with the prior art: By providing first light-emitting elements in at least part of the first region of the display panel and second light-emitting elements in the second region, and the light-emitting directions of the first light-emitting elements and the second light-emitting elements are opposite, double-sided display in the thickness direction can be achieved on a complete display panel. Further, the front and back sides can be made to display the same picture content or different picture contents as needed, meeting the diverse needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure and, together with the specification, are used to explain the principles of the present disclosure.

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0011] Figure 1 Shown is a schematic structural diagram of a display panel provided by an embodiment of the present disclosure;

[0012] Figure 2 Shown as Figure 1 Schematic cross-sectional view along D-D;

[0013] Figure 3 Shown is a schematic structural diagram of a display panel provided by an embodiment of the present disclosure;

[0014] Figure 4 Shown is another schematic structural diagram of a display panel provided by an embodiment of the present disclosure;

[0015] Figure 5 Shown is yet another schematic structural diagram of a display panel provided by an embodiment of the present disclosure;

[0016] Figure 6 Shown is yet another schematic structural diagram of a display panel provided by an embodiment of the present disclosure;

[0017] Figure 7 Shown is yet another schematic structural diagram of a display panel provided by an embodiment of the present disclosure;

[0018] Figure 8 Shown is a schematic structural diagram of a display panel provided by an embodiment of the present disclosure;

[0019] Figure 9 Shown is a schematic diagram of the relative quantity of the second light-emitting elements and the first light-emitting elements provided by an embodiment of the present disclosure;

[0020] Figure 10 The figure shows a schematic diagram of a pixel unit structure provided by an embodiment of the present disclosure;

[0021] Figure 11 The figure shows a cross-sectional view of a display panel provided by an embodiment of the present disclosure;

[0022] Figure 12 The figure shows a schematic diagram of a display panel structure provided by an embodiment of the present disclosure;

[0023] Figure 13 The figure shows Figure 12 a schematic diagram of the cross-section along E-E; please refer to

[0024] Figure 14 The figure shows another schematic diagram of a display panel structure provided by an embodiment of the present disclosure;

[0025] Figure 15 The figure shows Figure 14 a schematic diagram of the cross-section along F-F;

[0026] Figure 16 The figure shows a schematic diagram of a display panel structure provided by an embodiment of the present disclosure;

[0027] Figure 17 The figure shows another schematic diagram of a display panel structure provided by an embodiment of the present disclosure;

[0028] Figure 18 The figure shows yet another schematic diagram of a display panel structure provided by an embodiment of the present disclosure;

[0029] Figure 19 The figure shows a schematic diagram of a display device provided by an embodiment of the present disclosure. Detailed implementation manners

[0030] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments may be combined with each other.

[0031] Many specific details are set forth in the following description in order to provide a thorough understanding of the present disclosure, but the present disclosure may be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present disclosure, rather than all embodiments.

[0032] Figure 1 The figure shows a schematic diagram of a display panel structure provided by an embodiment of the present disclosure, Figure 2 The figure shows Figure 1 a schematic diagram of the cross-section along D-D, please refer to Figures 1 to 2, the present disclosure provides a display panel 100, including a display area AA, a non-display area NA located on at least one side of the display area AA, the display area AA includes a first area 11 and a second area 12 located on at least one side of the first area 11; at least part of the first area 11 includes a first light-emitting element 111, and the second area 12 includes a second light-emitting element 121; the light-emitting directions of the first light-emitting element 111 and the second light-emitting element 121 are opposite.

[0033] Specifically, the display panel 100 includes a first area 11 and a second area 12. Optionally, the first area 11 and the second area 12 together form a pixel unit 10 in the display panel 100. It can be understood that the first light-emitting element 111 and the second light-emitting element 121 can be respectively one of a red light-emitting element, a blue light-emitting element, and a green light-emitting element. The present disclosure does not limit this, and it can be specifically set according to actual needs.

[0034] Please refer to Figure 2 , in an optional embodiment provided by the present disclosure, at least part of the first area 11 includes a first light-emitting element 111. Optionally, the light-emitting direction G1 of the first light-emitting element 111 faces the first surface 101 of the display panel 100; the second area 12 includes a second light-emitting element 121, and the light-emitting direction G2 of the second light-emitting element 121 is opposite to the light-emitting direction G1 of the first light-emitting element 111. The light-emitting direction G2 of the second light-emitting element 121 faces the second surface 102 of the display panel 100. The first surface 101 and the second surface 102 refer to two opposite surfaces of the display panel 100 in the direction perpendicular to the plane where the display panel 100 is located. That is, since at least part of the first area 11 in the display panel 100 includes a first light-emitting element 111 and the first light-emitting element 111 emits light toward the first surface 101, the first surface 101 of the display panel 100 can be normally displayed; since the second area 12 in the display panel 100 includes a second light-emitting element 121 and the light-emitting direction G2 of the second light-emitting element 121 is opposite to the light-emitting direction G1 of the first light-emitting element 111 and the second light-emitting element 121 emits light toward the second surface 102, the second surface 102 of the display panel 100 can be normally displayed, and both sides of the display panel 100 in the thickness direction can be normally displayed. Optionally, the picture contents displayed on the first surface 101 and the second surface 102 can be the same or different, depending on actual needs.

[0035] In this way, by providing a first light-emitting element 111 in at least part of the first area 11 of the display panel 100, a second light-emitting element 121 in the second area 12, and the light-emitting directions of the first light-emitting element 111 and the second light-emitting element 121 being opposite, double-sided display of the display panel 100 in the thickness direction can be achieved, the display effect can be improved, and the diverse needs of users can be met.

[0036] Please continue to refer to Figure 1 andFigure 2 A display panel 100 provided by the present disclosure has a transmittance of the first region 11 greater than or equal to that of the second region 12.

[0037] Specifically, in an optional embodiment provided by the present disclosure, the display panel 100 includes a first region 11 and a second region 12 located on at least one side of the first region 11. Among them, the transmittance of the first region 11 is greater than that of the second region 12. Optionally, the first region 11 includes a transparent region, and the second region 12 includes an opaque region, or the transparency of the first region 11 is higher than that of the second region 12... and so on. The present disclosure does not limit this, and it can be specifically set according to actual process requirements. When the first region 11 includes a transparent region and the second region 12 includes an opaque region, as described above, the first region 11 of the display panel 100, that is, the transparent region, emits light toward the first surface 101, and the first surface 101 can perform transparent display. The second region 12 of the display panel 100, that is, the opaque region, emits light toward the second surface 102, and the second surface 102 can perform opaque display. In another optional embodiment provided by the present disclosure, the transmittance of the first region 11 is equal to that of the second region 12. For example, both the first region 11 and the second region 12 are opaque regions. At this time, the display panel 100 does not include a transparent region, but can achieve double-sided display. In this way, on the basis that the display panel 100 can perform double-sided display, the transparency of the first region 11 and the second region 12 can be further differentially set to meet the diverse needs of users.

[0038] Figure 3 The following is a schematic structural diagram of a display panel provided by an embodiment of the present disclosure. Figure 4 The following is another schematic structural diagram of a display panel provided by an embodiment of the present disclosure. Figure 5 The following is still another schematic structural diagram of a display panel provided by an embodiment of the present disclosure. Figure 6 The following is still another schematic structural diagram of a display panel provided by an embodiment of the present disclosure. Figure 7 The following is still another schematic structural diagram of a display panel provided by an embodiment of the present disclosure. Please refer to Figures 1 to 7 The present disclosure provides a display panel 100. At least the first region 11 is located between two adjacent second regions 12, and the first region 11 between at least two adjacent second regions 12 includes a first light-emitting element 111.

[0039] Specifically, along the direction parallel to the plane where the display panel 100 is located, the first region 11 exists between at least some adjacent second regions 12. In an optional embodiment provided by the present disclosure, please refer to Figure 5, the first area 11 in the first row includes the first light-emitting element 111, and the first area 11 in the second row does not include the first light-emitting element 111... and so on in an alternating arrangement. That is, the first area 11 in odd rows includes the first light-emitting element 111, and the first area 11 in even rows does not include the first light-emitting element 111, or the first area 11 in even rows includes the first light-emitting element 111, and the first area 11 in odd rows does not include the first light-emitting element 111.

[0040] Optionally, please refer to Figure 4 , the first area 11 in the first row includes the first light-emitting element 111, the first areas 11 in the second row to the (N - 1)-th row do not include light-emitting elements, and the first area 11 in the N-th row includes the first light-emitting element 111 (N is greater than or equal to 3 and N is a positive integer)... That is, the first areas 11 that do not include the first light-emitting element 111 can be more than one row. Further, the first areas 11 including the first light-emitting element 111 and the first areas 11 not including the first light-emitting element 111 can be arranged at equal row intervals or at unequal row intervals. For example, please refer to Figure 6 , the first areas 11 in the first row and the second row both include the first light-emitting element 111, the first areas 11 in the third row and the fourth row both do not include the first light-emitting element 111... and so on in repetition. Or, please refer to Figure 7 , the first area 11 in the first row includes the first light-emitting element 111, the first area 11 in the second row does not include the first light-emitting element 111, the first areas 11 in the third row and the fourth row include the first light-emitting element 111, the first areas 11 in the fifth row and the sixth row do not include the first light-emitting element 111... and so on in an increasing pattern. Or, the first area 11 in the first row includes the first light-emitting element 111, the first areas 11 in the second row and the third row do not include the first light-emitting element 111, the first areas 11 in the fourth row, the fifth row, and the sixth row include the first light-emitting element 111, the first areas 11 in the seventh row, the eighth row, the ninth row, and the tenth row do not include the first light-emitting element 111... and so on in a progressive increasing pattern, etc. The above are only examples, and the present disclosure does not limit the arrangement manner of the first light-emitting element 111 in the first area 11, and it can be specifically set according to actual needs. In this way, there is at least one first area 11 including the first light-emitting element 111 between adjacent two second areas 12, and display can be performed only in the area where specific display on the back surface (taking the first surface 101 of the display panel 100 as the back surface) is required, without setting the first light-emitting element 111 in all the first areas 11. In this way, on the basis of realizing the back surface display function in a scenario that meets the personalized needs of users, the setting of the first light-emitting element 111 in the non-display area AA can be reduced, the process flow can be reduced, and the production cost can be lowered.

[0041] It should be noted that the number of pixel units 10 in the display panel 100 shown in the accompanying drawings of the present disclosure is only an example and does not represent the number of pixel units in the actual process. It shall be subject to the actual requirements.

[0042] Figure 8 The following is a schematic structural diagram of a display panel provided by an embodiment of the present disclosure. Please refer to Figures 1 to 8 The present disclosure provides a display panel 100, in which at least a first area 11 is located between two adjacent second areas 12, and at least the first area 11 between two adjacent second areas 12 does not include a first light-emitting element 111.

[0043] Specifically, in an optional embodiment provided by the present disclosure, at least a first area 11 is located between two second areas 12 adjacent along a first direction D1. Exemplarily, please refer to Figure 5 , the first area 11 in the second row does not include a first light-emitting element 111, and the first area 11 in the fourth row does not include a first light-emitting element 111. Optionally, it may also be that only one row of the first areas 11 in the display panel 100 includes a first light-emitting element 111, and the first areas 11 in other rows do not include a first light-emitting element 111. Or, it may also be that the first areas 11 including the first light-emitting element 111 in the display panel 100 and the first areas 11 not including the first light-emitting element 111 are evenly arranged in a form of spaced rows. Or, please refer to Figure 7 , it may also be that the first areas 11 including the first light-emitting element 111 in the display panel 100 and the first areas 11 not including the first light-emitting element 111 are arranged progressively in a form of spaced rows. For example, the first area 11 in one row includes a first light-emitting element 111, and the first areas 11 in two consecutive rows adjacent thereto do not include a first light-emitting element 111... Or, please refer to Figure 8 , the first areas 11 in multiple consecutive rows include a first light-emitting element 111, and the first areas 11 in multiple consecutive rows following thereto do not include a first light-emitting element 111... and so on. The above are only examples, and the present disclosure does not limit the setting of the first light-emitting element 111 in the first area 11, which shall be subject to the actual requirements.

[0044] In this way, by not setting the first light-emitting element 111 in the first area 11 between two adjacent second areas 12, the first light-emitting element 111 may not be set at the corresponding position of the area AA where no picture needs to be displayed on the first surface 101 of the display panel 100, which can reduce the use of the first light-emitting element 111 in the manufacturing process and lower the production cost.

[0045] Please continue to refer to Figures 1 to 8, the present disclosure provides a display panel 100. Among two adjacent first regions 11, at least one first region 11 does not include a first light-emitting element 111. It should be noted that there are no other first regions 11 between two adjacent first regions 11, but a second region 12 may be included. Here, two adjacent first regions 11 refer to two first regions 11 adjacent along the first direction D1 or two first regions 11 adjacent along the second direction D2. Among them, the first direction D1 and the second direction D2 intersect and are parallel to the plane where the display panel 100 is located.

[0046] Specifically, in an optional embodiment provided by the present disclosure, please refer to Figure 1 , the first region 11 in the first row and the first column includes a first light-emitting element 111, the first region 11 in the first row and the second column adjacent to it does not include a first light-emitting element 111, the first region 11 in the second row and the first column adjacent to it does not include a first light-emitting element 111, and the first region 11 in the second row and the second column adjacent to it does not include a first light-emitting element 111; that is, the first region 11 in the first row and the first column includes a first light-emitting element 111, and the first regions 11 adjacent to it in the first direction D1 do not include a first light-emitting element 111, and the first regions 11 adjacent to it in the second direction D2 do not include a first light-emitting element 111. Taking 4 adjacent pixel units 10 as a pixel repeating unit 00, the display panel 100 includes multiple such pixel repeating units 00. A pixel repeating unit 00 includes four first regions 11. These four first regions 11 are adjacent to each other in pairs, and among these four first regions 11 adjacent to each other in pairs, only one first region 11 includes a first light-emitting element 111. At this time, the first surface 101 of the display panel 100 can achieve image display. Since only one first region 11 in each pixel repeating unit 00 includes a first light-emitting element 111 and the other three first regions 11 do not include it, the resolution of the image display on the first surface 101 is relatively low at this time, but it does not affect the iconic display of the first surface 101 and meets the specific display requirements of the first surface 101 of the display panel 100.

[0047] It should be noted that it is not necessary that the first region 11 in the first row and the first column in the pixel repeating unit 00 includes a first light-emitting element 111 and the other three first regions 11 do not include a first light-emitting element 111; it may also be that the first region 11 in the first row and the second column includes a first light-emitting element 111 and the other three first regions 11 do not include a first light-emitting element 111; or, it may also be that the first region 11 in the second row and the first column includes a first light-emitting element 111 and the other three first regions 11 do not include a first light-emitting element 111; or, it may also be that the first region 11 in the second row and the second column includes a first light-emitting element 111 and the other three first regions 11 do not include a first light-emitting element 111. The present disclosure does not make specific limitations on this.

[0048] It should be noted that in the pixel repetition unit 00, it is not necessary that there is only one first region 11 including the first light-emitting element 111. There can be two or three first regions 11 including the first light-emitting element 111. The present disclosure does not limit this, as long as in two adjacent first regions 11, at least one first region 11 does not include the first light-emitting element 111. In addition, Figure 1 the division of the pixel repetition unit 00 in M is only for illustration and does not represent the division in actual processes. Optionally, a pixel repetition unit 00 may further include 2K pixel units 10 or 2

[0049] pixel units 10, where K and M are positive integers greater than or equal to 1.

[0050] Figure 9 The following shows a schematic diagram of the relative quantity of the second light-emitting element and the first light-emitting element provided by an embodiment of the present disclosure. Please refer to Figure 9 The present disclosure provides a display panel 100, in which the quantity of the second light-emitting elements 121 in at least the second region 12 is greater than the quantity of the first light-emitting elements 111 in the first region 11. It can be understood that in one pixel unit 10, the quantity of the second light-emitting elements 121 in at least the second region 12 is greater than the quantity of the first light-emitting elements 111 in the first region 11. Optionally, the quantity of the second light-emitting elements 121 in the second region 12 can be arranged as needed. Figure 9 This is only an example and does not represent the arrangement of the second light-emitting elements 121 in actual processes. When the quantity of the second light-emitting elements 121 in the second region 12 is large, the resolution of the display screen in the second region 12 of the display panel 100 can be made higher, which can meet the high requirements of users for the display screen. In this way, by setting the quantity of the second light-emitting elements 121 to be greater than the quantity of the first light-emitting elements 111, the resolution of the display screen in the second region 12 can be improved to meet the user's needs; and the setting of the first light-emitting elements 111 can be minimized as much as possible, reducing the process difficulty and production cost.

[0051] Figure 10 The following shows a schematic diagram of the structure of a pixel unit provided by an embodiment of the present disclosure. Please refer to Figure 10, in an optional embodiment provided by the present disclosure, the first region includes a first repair site 01, the second region 12 includes a second repair site 02, the first repair site 01 is used to supplement the first light-emitting element 111 for the first region 11 when the first light-emitting element 111 in the first region 11 emits light abnormally; the second repair site 02 is used to supplement the second light-emitting element 121 for the second region 12 when the first light-emitting element 121 in the second region 12 emits light abnormally, so as to improve the repair efficiency of the display panel 100 and reduce the maintenance cost.

[0052] Figure 11 The figure shows a cross-sectional view of a display panel provided by an embodiment of the present disclosure. Figure 12 The figure shows a schematic structural diagram of a display panel provided by an embodiment of the present disclosure. Figure 13 The figure shows Figure 12 A schematic cross-sectional view along the E-E section. Figure 14 The figure shows another schematic structural diagram of a display panel provided by an embodiment of the present disclosure. Figure 15 The figure shows Figure 14 A schematic cross-sectional view along the F-F section. Please refer to Figure 2 、 Figures 11 to 15 , the present disclosure provides a display panel 100. The display panel 100 further includes a light-shielding portion 16. The light-shielding portion 16 is at least located in the second region 12. The light-shielding portion 16 includes an opening 161, and the opening 161 exposes the second light-emitting element 121.

[0053] Specifically, the display panel 100 includes a substrate 13 and an array layer 14. The array layer 14 is located on one side of the substrate 13. The second light-emitting element 121 is located on the side of the array layer 14 away from the substrate 13. The array layer 14 is used to drive the second light-emitting element 121 to emit light. The display panel 100 further includes a light-shielding portion 16. In the direction perpendicular to the plane where the display panel 100 is located, the light-shielding portion 16 is located on the side of the second light-emitting element 121 away from the array layer 14. The light-shielding portion 16 is at least located in the second region 12. As described above, the light-emitting direction G2 of the second light-emitting element 121 faces the second surface 102 of the display panel 100. In order not to block the light emitted by the second light-emitting element 121, the light-shielding portion 16 includes an opening 161, and the opening 161 exposes the second light-emitting element 121. The light-shielding portion 16 can reduce the light crosstalk between adjacent second light-emitting elements 121, enhance the contrast of the display picture, and enhance the low-reflection effect in the dark state.

[0054] In this way, by providing the light-shielding portion 16 on the side of the second light-emitting element 121 away from the array layer 14, the light-shielding portion 16 is at least located in the second region 12, and the light-shielding portion 16 includes an opening 161, which is beneficial to the light emission of the second light-emitting element 121, reduces the light crosstalk between the second light-emitting elements 121, and improves the display effect of the picture.

[0055] Please refer to Figure 12 andFigure 13 , the present disclosure provides a display panel 100. At least a part of the light-shielding portion 16 is also located in the first region 11. In the direction perpendicular to the plane where the display panel 100 is located, the light-shielding portion 16 overlaps with the first light-emitting element 111.

[0056] Specifically, the light-shielding portion 16 is located on the side of the second light-emitting element 121 away from the array layer 14. The light-shielding portion 16 is at least located in the second region 12. The light-shielding portion 16 includes an opening 161, and the opening 161 exposes the second light-emitting element 121, which is beneficial to the light emission of the second light-emitting element 121. The second region 12 is located on at least one side of the first region 11. At least a part of the light-shielding portion 16 is also located in the first region 11. At least a part of the first region 11 includes a first light-emitting element 111. The light-emitting direction of the first light-emitting element 111 is opposite to that of the second light-emitting element 121. In the direction perpendicular to the plane where the display panel 100 is located, the light-shielding portion 16 overlaps with the first light-emitting element 111. In an optional embodiment provided by the present disclosure, there is a case where part of the first region 11 includes a first light-emitting element 111 and part of the first region 11 does not include a first light-emitting element 111. The light-shielding portion 16 overlaps with the first light-emitting element 111, that is, the light-shielding portion 16 does not overlap with the first region 11 that does not include the first light-emitting element 111, and the light-shielding portion 16 only overlaps with the first light-emitting element 111 in part of the first region 11. Optionally, when the first region 11 includes a transparent region and the second region 12 includes a non-transparent region, by providing a light-shielding portion 16 including an opening 161 and making the light-shielding portion 16 overlap with the first light-emitting element 111, while realizing double-sided transparent display, the contrast of the display picture in the transparent region can be enhanced by adding a light-shielding structure, the low reflection in the dark state can be enhanced, and the display effect can be improved.

[0057] In another optional embodiment provided by the present disclosure, when all of the first regions 11 include a first light-emitting element 111, the light-shielding portion 16 overlaps with the first light-emitting element 111, that is, the light-shielding portion 16 only overlaps with the first light-emitting element 111 in part of the first region 11, and the light-shielding portion 16 does not overlap with the region in the first region 11 that does not include the first light-emitting element 111. Optionally, when the first region 11 includes a transparent region and the second region 12 includes a non-transparent region, by providing a light-shielding portion 16 including an opening 161 and making the light-shielding portion 16 overlap with the first light-emitting element 111, while realizing double-sided transparent display, the contrast of the display picture in the transparent region can be enhanced by adding a light-shielding structure, the low reflection in the dark state can be enhanced, and the display effect can be improved.

[0058] In this way, by providing the light-shielding portion 16 to overlap with the first light-emitting element 111 in the direction perpendicular to the plane where the display panel 100 is located, double-sided transparent display of the display panel 100 can be realized, and the contrast of the display picture in the first region 11 can be increased by the light-shielding portion 16, and the low reflection effect in the dark state can be increased.

[0059] Please continue to refer toFigures 12 to 13 , the present disclosure provides a display panel 100, and at least a part of the first region 11 does not overlap with the light-shielding portion 16.

[0060] Specifically, the light-shielding portion 16 overlaps with the first light-emitting element 111 in a direction perpendicular to the plane where the display panel 100 is located. Further, the light-shielding portion 16 does not overlap with at least a part of the first region 11. When the first region 11 includes a transparent region and the second region 12 includes a non-transparent region, the overlap of the light-shielding portion 16 with the first light-emitting element 111 in the first region 11 is beneficial to increasing the contrast of the display screen in the first region 11, and the non-overlap of the light-shielding portion 16 with at least a part of the first region 11 is beneficial to retaining the transparent region in the display panel 100 to achieve the transparent display of the display panel 100 and meet the dual requirements of the user for the transparent display panel 100 and the double-sided display. Thus, by setting at least a part of the first region 11 not to overlap with the light-shielding portion 16, at least a part of the transparent region in the display panel 100 can be retained to meet the dual requirements of the user for the transparent display panel 100 and the double-sided display.

[0061] Please refer to Figures 14 to 15 , the present disclosure provides a display panel 100. The display panel 100 further includes a light-shielding portion 16. The light-shielding portion 16 is at least located in the first region 11 and the second region 12. The light-shielding portion 16 includes an opening 161, and the opening 161 exposes the second light-emitting element 121.

[0062] Specifically, in an optional embodiment provided by the present disclosure, the display panel 100 includes a first region 11 and a second region 12 located at least on one side of the first region 11. The display panel 100 further includes a light-shielding portion 16. The light-shielding portion 16 is at least located in the first region 11 and the second region 12. That is, the light-shielding portion 16 is provided in both the first region 11 and the second region 12 in the display panel 100. The light-shielding portion 16 includes an opening 161. The light-shielding portion 16 is located on one side of the light-emitting direction of the second light-emitting element 121, and the opening 161 exposes the second light-emitting element 121, which is beneficial to the light emission of the second light-emitting element 121; the light-shielding portion 16 is located on the side opposite to the light-emitting direction of the first light-emitting element 111, which is beneficial to enhancing the contrast of the display screen in the first region 11 and increasing the dark state low reflection effect. At this time, both the first region 11 and the second region 12 are non-transparent regions, but the double-sided display effect of the display panel 100 is better.

[0063] Thus, by providing the light-shielding portion 16 in both the first region 11 and the second region 12, the contrast of the display screen can be enhanced and the double-sided display effect of the display panel 100 can be improved.

[0064] Figure 16 The following shows a schematic structural diagram of a display panel provided by an embodiment of the present disclosure. Figure 17 The following shows another schematic structural diagram of a display panel provided by an embodiment of the present disclosure. Figure 18The following is a schematic diagram of another display panel structure provided by an embodiment of the present disclosure. Please refer to Figures 11 to 18 , the present disclosure provides a display panel 100, which includes a substrate 13, an array layer 14 on one side of the substrate 13, and a packaging layer 15 on the side of the array layer 14 facing away from the substrate 13; the first light-emitting element 111 includes a first electrode 21 and a light-emitting layer 20, the first electrode 21 is located on the side of the light-emitting layer 20 facing the packaging layer 15, and the first electrode 21 is connected to the array layer 14 through a first signal line 31. Optionally, the first signal line 31 can be a transparent trace or an opaque trace, and the present disclosure does not limit this.

[0065] Specifically, the packaging layer 15 is located on the side of the light-emitting direction of the second light-emitting element 121, the packaging layer 15 is located on the side away from the light-emitting direction of the first light-emitting element 111, the array layer 14 is located on the side of the second light-emitting element 121 facing away from the packaging layer 15, the array layer 14 is used to drive the second light-emitting element 121 to emit light, and the array layer 14 is also used to drive the first light-emitting element 111 to emit light. Since the regions where the first light-emitting element 111 and the second light-emitting element 121 are located are different, and the first light-emitting element 111 also needs to be driven by the array layer 14 to emit light. The first light-emitting element 111 includes a first electrode 21 and a light-emitting layer 20, the first electrode 21 is located on the side of the light-emitting layer 20 facing the packaging layer 15, and the first electrode 21 is connected to the array layer 14 through the first signal line 31 to realize the light emission of the first light-emitting element 111. In this way, by providing the first signal line 31 between the array layer 14 and the first electrode 21 of the first light-emitting element 111, the electrical connection between the array layer 14 and the first light-emitting element 111 can be realized, making it feasible for the array layer 14 to drive the first light-emitting element 111 and the second light-emitting element 121 to emit light simultaneously.

[0066] Optionally, please refer to Figure 13 , the display panel 100 further includes a light-shielding portion 16. In the direction perpendicular to the plane where the display panel 100 is located, the light-shielding portion 16 at least overlaps with the first light-emitting element 111 and the first signal line 31. When the first region 11 includes a transparent region, the overlap between the light-shielding portion 16 and the first signal line 31 can block the first signal line 31 to a certain extent, improving the aesthetics of the display panel 100.

[0067] Please continue to refer to Figure 11 , Figure 13 , Figure 15 , Figures 16 to 18 , the present disclosure provides a display panel 100, the first light-emitting element 111 includes two first electrodes 21, or, the first light-emitting element 111 includes one first electrode 21 and one second electrode 22, and the second electrode 22 is located on the side of the light-emitting layer 20 facing the substrate 13.

[0068] Specifically, please refer toFigure 1 , Figure 11 , Figure 13 , Figure 15 and Figure 17 , in an alternative embodiment provided by the present disclosure, the first light-emitting element 111 includes two first electrodes 21, that is, the first light-emitting element 111 is a flip-chip LED chip. Both of the two first electrodes 21 are located on the side of the light-emitting layer 20 facing the encapsulation layer 15. The two first electrodes 21 are respectively connected to the array layer 14 through first signal lines 31. Optionally, one first electrode 21 corresponds to the anode of the first light-emitting element 111, and one first electrode 21 corresponds to the cathode of the first light-emitting element 111. The first electrode 21 corresponding to the anode of the first light-emitting element 111 and the first electrode 21 corresponding to the cathode of the first light-emitting element 111 are respectively connected to the array layer 14 through first signal lines 31 to drive the first light-emitting element 111 to emit light.

[0069] Please refer to Figure 16 and Figure 18 , in another alternative embodiment provided by the present disclosure, the first light-emitting element 111 includes one first electrode 21 and one second electrode 22. The first electrode 21 and the second electrode 22 are respectively located on both sides of the light-emitting layer 20, that is, the first light-emitting element 111 is a vertical LED chip. Among them, the first electrode 21 is located on the side of the light-emitting layer 20 facing the encapsulation layer 15, and the second electrode 22 is located on the side of the light-emitting layer 20 facing the substrate 13. The first electrode 21 is connected to the array layer 14 through a first signal line 31. Optionally, the array layer 14 includes multiple metal layers. During the actual process fabrication, a mask plate can be used to retain the metal layers in the array layer 14 in the first region 11, pattern the metal layers to form second signal lines 32, place the vertical LED chip in the first region 11, and connect the second signal lines 32 to the second electrode 22 of the first light-emitting element 111 to achieve the electrical connection between the second electrode 22 and the array layer 14, and finally achieve the driving of the first light-emitting element 111 by the array layer 14.

[0070] In this way, by setting the first light-emitting element 111 as a flip-chip LED chip or a vertical LED chip, it can meet the needs of users or products and provide diversified choices for the manufacturing solutions of the display panel 100.

[0071] Please refer to Figure 11 , Figure 13 and Figure 15, the present disclosure provides a display panel 100. The substrate 13 includes a groove 131, and at least a part of the first light-emitting element 111 is located in the groove 131. The display panel 100 further includes a filling portion 17, and the filling portion 17 is located on the side of the first light-emitting element 111 facing the encapsulation layer 15 in the first region 11; the array layer 14 is at least located in the second region 12, and the surface of the array layer 14 facing away from the substrate 13 and the surface of the filling portion 17 facing away from the substrate 13 are in the same plane; the first signal line 31 is located on the surface of the array layer 14 and the filling portion 17 facing the encapsulation layer 15.

[0072] Specifically, the display panel 100 includes a first region 11 and a second region 12. In the second region 12, the array layer 14 is located on one side of the substrate 13. In the first region 11, the substrate 13 includes a groove 131, and at least a part of the first light-emitting element 111 is located in the groove 131. The filling portion 17 is located on the side of the first light-emitting element 111 facing away from the substrate 13. The filling portion 17 can be used to fix the first light-emitting element 111 and can also be used to fill the groove 131. Optionally, the display panel 100 further includes a flat portion 18, and the flat portion 18 is located on the side of the filling portion 17 facing the substrate 13, and is used to raise the first light-emitting element 111 so that the surface of the filling portion 17 facing away from the substrate 13 and the surface of the array layer 14 facing away from the substrate 13 are in the same plane. The first signal line 31 is located on the surface of the array layer 14 and the filling portion 17 facing the encapsulation layer 15. The first light-emitting element 111 includes a first electrode 21, and the first electrode 21 is connected to the array layer 14 through the first signal line 31; that is, when the surface of the filling portion 17 facing away from the substrate 13 and the surface of the array layer 14 facing away from the substrate 13 are in the same plane, a part of the first signal line 31 located on the side of the filling portion 17 facing away from the substrate 13 and a part of the first signal line 31 located on the side of the array layer 14 facing away from the substrate 13 are in the same plane, and the first signal line 31 can be directly connected to the first electrode 21 from the array layer 14 in the horizontal direction, reducing the process difficulty. In this way, by setting the surface of the filling portion 17 facing away from the substrate 13 and the surface of the array layer 14 facing away from the substrate 13 to be in the same plane, the first signal line 31 can be formed only through one process during the manufacturing process, which can reduce the process difficulty and simplify the process steps. In addition, by providing the first signal line 31, the light-emitting elements in the first region 11 and the second region 12 can share the array layer 14, and there is no need to provide two different array layers, thereby reducing the thickness of the double-sided display device. By providing the groove 131 in the substrate 13, the thickness of the double-sided display device can be further reduced, realizing lightness and thinness.

[0073] Please refer to Figure 17 and Figure 18, the present disclosure provides a display panel 100. The display panel 100 further includes a filling portion 17, and the filling portion 17 is located on the side of the first light-emitting element 111 facing the encapsulation layer 15 in the first region 11; the array layer 14 is at least located in the second region 12, and the surface of the array layer 14 facing away from the substrate 13 and the surface of the filling portion 17 facing away from the substrate 13 are located in different planes; the first signal line 31 is at least partially located on the surface of the array layer 14 and the filling portion 17 facing the encapsulation layer 15, and the first signal line 31 further includes a first connection portion 311, and the first connection portion 311 is located on the surface of the filling layer facing the array layer 14.

[0074] Specifically, in an optional embodiment provided by the present disclosure, the substrate 13 does not include a groove 131. The display panel 100 includes a first region 11 and a second region 12 located on at least one side of the first region 11. The filling portion 17 is located in the first region 11, the array layer 14 is at least located in the second region 12, the first light-emitting element 111 is located on the side of the filling portion 17 facing the substrate 13, and the second light-emitting element 121 is located on the side of the array layer 14 facing the encapsulation layer 15. As is well known, the thickness of the LED chip is much greater than the thickness of the array layer 14. When the substrate 13 does not have a groove 131, the surface of the filling portion 17 facing away from the substrate 13 protrudes from the surface of the array layer 14 facing away from the substrate 13, and the two are located in different planes. If the first signal line 31 is to be connected to the array layer 14 and the first light-emitting element 111, a first connection portion 311 needs to be provided on the surface of the filling layer facing the array layer 14, and the connection between the part of the first signal line 31 located on the surface of the array layer 14 and the part of the first signal line 31 located on the surface of the filling layer is realized through the first connection portion 311. That is, in the manufacturing process, since the surface of the array layer 14 facing away from the substrate 13 and the surface of the filling portion 17 facing away from the substrate 13 are located in different planes, a first connection portion 311 also needs to be provided on the surface of the filling portion 17 facing the array layer 14 to realize the connection between the array layer 14 and the first electrode 21. Because the process of grooving the substrate 13 is difficult, this embodiment does not require grooving the substrate 13, and it is not necessary for the surface of the array layer 14 facing away from the substrate 13 and the surface of the filling portion 17 facing away from the substrate 13 to be located in the same plane, which can reduce the process difficulty and facilitate production realization. In this way, by setting the surface of the array layer 14 facing away from the substrate 13 and the surface of the filling portion 17 facing away from the substrate 13 to be located in different planes, it is possible not to groove the substrate 13, reduce the process difficulty, and facilitate production realization; by providing the first signal line 31 including the first connection portion 311, the connection between the array layer 14 and the first electrode 21 can be realized, and the light-emitting elements in the first region 11 and the second region 12 can share the array layer 14 without setting two different array layers, thereby thinning the thickness of the double-sided display device and achieving lightness and thinness.

[0075] Figure 19The following is a schematic diagram of a display device provided by an embodiment of the present disclosure. Please refer to Figure 19 , the present disclosure provides a display device 200, including the display panel 100 as described above. The display device 200 provided by the embodiments of the present disclosure may be any electronic device with a display function, such as a touch display screen, a mobile phone, a tablet computer, a laptop computer, an e-reader, or a television. The display device 200 provided by the embodiments of the present disclosure has the beneficial effects of the display panel 100 provided by the embodiments of the present disclosure. For specific descriptions of the display panel 100, reference may be made to the above embodiments, and details will not be repeated herein.

[0076] It can be understood that Figure 19 , only a rounded rectangle structure is taken as an example to illustrate a shape of the display device 200. In some other embodiments of the present disclosure, the display device 200 may also be embodied as a circular, oval, or any other feasible shape, and the present disclosure does not specifically limit this.

[0077] In summary, a display panel and a display device provided by the present disclosure can achieve double-sided display of the display panel in the thickness direction by arranging first light-emitting elements in at least part of the first region of the display panel and second light-emitting elements in the second region, with the light-emitting directions of the first light-emitting elements and the second light-emitting elements being opposite. Further, the transparency of the first region and the second region is differentially set to meet the diverse needs of users. On the basis of realizing the back display function, the arrangement of the first light-emitting elements in the region that does not need to be displayed is reduced, the process steps are reduced, and the production cost is lowered. Through the arrangement or layout design of the first light-emitting elements, the number of the second light-emitting elements in the second region is made to be greater than the number of the first light-emitting elements in the first region at least, so as to achieve double-sided display of the display panel and minimize the arrangement of the first light-emitting elements. By providing a light-shielding portion on the side of the second light-emitting element facing away from the array layer, and the light-shielding portion is at least located in the second region and includes an opening, it is beneficial to the light emission of the second light-emitting elements, reduces the light crosstalk between the second light-emitting elements, and improves the picture display effect. By arranging the light-shielding portion to overlap with the first light-emitting elements in the direction perpendicular to the plane where the display panel is located, double-sided transparent display of the display panel can be achieved, and the contrast of the display picture in the first region is increased by the light-shielding portion, and the dark-state low-reflection effect is increased. By providing a first signal line between the array layer and the first electrode of the first light-emitting element, the electrical connection between the array layer and the first light-emitting element can be achieved. By setting the first light-emitting element as a flip-chip LED chip or a vertical LED chip, it can meet the needs of users or products and provide diverse choices for the display panel manufacturing solutions. By setting the surface of the filling portion facing away from the substrate and the surface of the array layer facing away from the substrate to be in the same plane, the first signal line can be formed only through one process, which can reduce the process difficulty and simplify the process steps. By setting the surface of the array layer facing away from the substrate and the surface of the filling portion facing away from the substrate to be in different planes, it is not necessary to groove the substrate, which reduces the process difficulty and is conducive to production implementation.

[0078] The above are only specific embodiments of the present disclosure, which enable those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that: It includes a display area, the display area includes a first area and a second area located at least on one side of the first area; at least part of the first area includes a first light-emitting element, and the second area includes a second light-emitting element; the first light-emitting element and the second light-emitting element have opposite light emitting directions.

2. The display panel according to claim 1, wherein: The transmittance of the first region is greater than or equal to the transmittance of the second region.

3. The display panel according to claim 1, wherein: At least the first region is located between two adjacent second regions, and at least the first region between two adjacent second regions includes the first light-emitting element.

4. The display panel according to claim 1, wherein: At least the first region is located between two adjacent second regions, and at least the first region between two adjacent second regions does not include the first light-emitting element.

5. The display panel according to claim 1, wherein: At least one of two adjacent first regions does not include the first light-emitting element.

6. The display panel according to claim 1, wherein: At least the number of the second light-emitting elements in the second region is greater than the number of the first light-emitting elements in the first region.

7. The display panel according to claim 1, wherein: The display panel further includes a light shielding portion, the light shielding portion is at least located in the second area, the light shielding portion includes an opening, and the opening exposes the second light emitting element.

8. The display panel according to claim 7, wherein: At least part of the light shielding portion is also located in the first area, and along a direction perpendicular to the plane where the display panel is located, the light shielding portion overlaps with the first light emitting element.

9. The display panel according to claim 7, wherein: At least a portion of the first region does not overlap with the light shielding portion.

10. The display panel according to claim 1, wherein: The display panel further includes a light shielding portion, the light shielding portion is located at least in the first area and the second area, the light shielding portion includes an opening, and the opening exposes the second light emitting element.

11. The display panel according to claim 1, wherein: The display panel comprises a substrate, an array layer located on one side of the substrate, and an encapsulation layer located on a side of the array layer away from the substrate; The first light emitting element includes a first electrode and a light emitting layer. The first electrode is located on a side of the light emitting layer facing the encapsulation layer. The first electrode is connected to the array layer through a first signal line.

12. The display panel according to claim 11, wherein: The substrate comprises a groove, the first light-emitting element is at least partially located in the groove, The display panel further comprises a filling portion, wherein the filling portion is located on a side of the first light emitting element facing the encapsulation layer in the first region; the array layer is at least located in the second region, and a surface of the array layer facing away from the substrate and a surface of the filling portion facing away from the substrate are located in the same plane; The first signal line is located on a surface of the array layer and the filling portion facing the packaging layer.

13. The display panel according to claim 11, wherein: The display panel further comprises a filling portion, wherein the filling portion is located on a side of the first light emitting element facing the encapsulation layer in the first region; the array layer is at least located in the second region, and a surface of the array layer facing away from the substrate and a surface of the filling portion facing away from the substrate are located in different planes; The first signal line is at least partially located on the surface of the array layer and the filling portion facing the packaging layer. The first signal line also includes a first connecting portion, which is located on the surface of the filling layer facing the array layer.

14. The display panel according to claim 11, wherein: The first light-emitting element includes two first electrodes, or the first light-emitting element includes one first electrode and one second electrode, and the second electrode is located on a side of the light-emitting layer facing the substrate.

15. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-14.

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