Display panel and display device

Abstract

The invention discloses a display panel and a display device, the display panel comprises a substrate, a light emitting layer, a light conversion layer and a light conversion packaging layer, and the substrate is provided with a plurality of pixel areas; the light-emitting layer is located on one side of the substrate and comprises a plurality of light-emitting units located in a plurality of pixel areas. The light conversion layer is located on the side, away from the substrate, of the light emitting layer and comprises a plurality of light conversion parts located in a plurality of pixel areas, and each light conversion part corresponds to one light emitting unit; the light conversion packaging layer is located on the side, away from the light emitting layer, of the light conversion layer, the light conversion packaging layer comprises containing parts and sealing parts which are continuously arranged, the sealing parts are located between the adjacent containing parts, containing spaces are formed in the containing parts, light conversion structures are contained in the containing spaces, and each light conversion structure comprises at least one light conversion part; the accommodating part covers the surface of one side, deviating from the substrate, of the light conversion structure and wraps the light conversion structure in the circumferential direction of the light conversion structure; the sealing portion is in contact with the light-emitting layer. The packaging reliability of the display panel provided by the invention is improved.

Description

Technical Field

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

[0002] Since VR / AR immersive head-mounted devices require high brightness, the higher the brightness, the greater the heat generated. The film layer under the packaging layer expands when heated, which can easily cause the packaging layer to rupture, thereby easily causing reduced reliability. Therefore, it is necessary to optimize the existing full-surface packaging technology. Summary of the invention

[0003] The purpose of the present application is to at least solve the problem of low packaging reliability of the display panel. This purpose is achieved through the following technical solutions:

[0004] A first aspect of the present application provides a display panel, comprising:

[0005] A substrate is provided with a plurality of pixel areas;

[0006] A light-emitting layer, located on one side of the substrate, comprising a plurality of light-emitting units located in a plurality of the pixel regions;

[0007] a light conversion layer, located on a side of the light emitting layer away from the substrate, comprising a plurality of light conversion parts located in a plurality of the pixel regions, each of the light conversion parts corresponding to one of the light emitting units;

[0008] A light conversion packaging layer is located on a side of the light conversion layer away from the light emitting layer, the light conversion packaging layer includes a continuously arranged accommodating portion and a sealing portion, the sealing portion is located between adjacent accommodating portions, the accommodating portion includes an accommodating space, the accommodating space accommodates a light conversion structure, the light conversion structure includes at least one light conversion portion, the accommodating portion covers a side surface of the light conversion structure away from the substrate and wraps the light conversion structure along the circumference of the light conversion structure; the sealing portion is in contact with the light emitting layer.

[0009] The display panel provided by the present application includes a stacked substrate, a light-emitting layer, a light-conversion layer and a light-conversion packaging layer, wherein the substrate includes a plurality of pixel regions, the light-emitting layer includes a light-emitting unit located in the pixel region, and each pixel region may be provided with at least one light-emitting unit. The light-conversion layer includes a light-conversion part located in the pixel region, and each pixel region may be provided with at least one light-conversion part, and the light-emitting unit corresponds to the light-conversion part one by one. In each pair of one-to-one corresponding light-emitting units and light-conversion parts, the orthographic projection of the light-conversion part on the substrate and the orthographic projection of the light-emitting unit on the substrate are at least partially overlapped, and the light-conversion part may emit light under the excitation of the light emitted by the light-emitting unit, and the light-emitting colors of different light-conversion parts may be different, and the light-emitting colors of at least some light-conversion parts are different from the light-emitting colors of the light-emitting units. The light-conversion packaging layer is used to encapsulate the light-conversion part to protect the light-conversion part and isolate water vapor and oxygen, so as to improve the yield of the light-conversion part. The light-conversion packaging layer includes a continuously arranged accommodating part and a sealing part, wherein the sealing part is located between adjacent accommodating parts, and the sealing part is in contact with the light-emitting layer, and the sealing part is used to achieve isolation between adjacent accommodating parts, so that adjacent accommodating parts can be independently packaged. The accommodating portion includes an accommodating space, and the accommodating space accommodates a light conversion structure, the light conversion structure includes at least one light conversion portion, and the accommodating portion covers a side surface of the light conversion structure away from the substrate and wraps the light conversion structure along the circumference of the light conversion structure, so that each accommodating portion realizes independent packaging of an optical conversion structure, that is, each accommodating portion realizes independent packaging of at least one light conversion portion. When the packaging of one of the accommodating portions fails, it is not easy to cause the packaging failure of the adjacent accommodating portions, thereby helping to improve the overall packaging yield, improve the reliability of the packaging, and then improve the reliability of the display panel.

[0010] In some embodiments of the present application, the pixel area includes a first sub-pixel and a second sub-pixel having a light emitting color different from that of the first sub-pixel, the first sub-pixel includes the light-emitting unit, the second sub-pixel includes at least one of the light-emitting units and the light conversion portion corresponding to the light-emitting unit, and the orthographic projection of the sealing portion on the substrate at least partially overlaps with the orthographic projection of the first sub-pixel on the substrate.

[0011] In some embodiments of the present application, an isolation gap is included between the light conversion parts in the light conversion layer, the light conversion structure includes one light conversion part, and at least a portion of the sealing part is located in the isolation gap.

[0012] In some embodiments of the present application, the light conversion structure includes at least two light conversion parts.

[0013] In some embodiments of the present application, in the accommodation space, adjacent light conversion parts are connected to each other; or,

[0014] The light conversion structure further includes an isolation portion disposed around the light conversion portion. In the accommodation space, adjacent light conversion portions are connected to each other through the isolation portion.

[0015] In some embodiments of the present application, multiple light conversion parts located in the same pixel area include a first light conversion part and a second light conversion part, the first light conversion part is used to convert the third color light emitted by the light emitting unit into a first color light, and the second light conversion part is used to convert the third color light emitted by the light emitting unit into a second color light, and the colors of the first color light and the second color light are different.

[0016] In some embodiments of the present application, the light conversion layer includes a first light conversion portion, a second light conversion portion, and a third light conversion portion located in the pixel area, the first light conversion portion is used to convert the third color light emitted by the light emitting unit into the first color light, the second light conversion portion is used to convert the third color light emitted by the light emitting unit into the second color light, and the third light conversion portion is colorless and light-transmissive;

[0017] In the pixel area, the number of the accommodating parts is the same as the number of the light conversion parts, the accommodating parts correspond to the light conversion parts one by one, and the light conversion structure includes the corresponding light conversion parts.

[0018] In some embodiments of the present application, the display panel further includes a first filling portion, which is located on a side of the sealing portion in the light conversion packaging layer facing away from the substrate and is located between adjacent accommodating portions.

[0019] In some embodiments of the present application, the display panel further includes a planar layer, and the planar layer is located on a side of the light conversion packaging layer and the first filling portion that is away from the substrate.

[0020] In some embodiments of the present application, the flat layer and the first filling portion are integrally formed.

[0021] In some embodiments of the present application, the display panel also includes a filter layer, which is located between the light conversion packaging layer and the flat layer, and the filter layer includes a filter part corresponding to the light conversion part. The display panel also includes a second filling part located between partially adjacent filter parts, and the second filling part is located between the first filling part and the flat layer.

[0022] In some embodiments of the present application, the planar layer, the first filling portion, and the second filling portion are integrally formed.

[0023] In some embodiments of the present application, the material of the planar layer includes silicon oxide, silicon nitride or organic material; and / or the material of the first filling part includes silicon oxide, silicon nitride or organic material; and / or the material of the second filling part includes silicon oxide, silicon nitride or organic material.

[0024] In some embodiments of the present application, the filter layer further includes a shading portion, wherein the shading portion is located between adjacent filter portions, and / or the shading portion is located between adjacent second filling portions, and / or the shading portion is located between adjacent filter portions and the second filling portions.

[0025] In some embodiments of the present application, the edge of the orthographic projection of the accommodating portion on the substrate coincides with the edge of the orthographic projection of the light-emitting unit on the substrate, or the edge of the orthographic projection of the accommodating portion on the substrate does not overlap with the edge of the orthographic projection of the light-emitting unit on the substrate.

[0026] In some embodiments of the present application, the thickness of the light conversion packaging layer is in the range of 0.01 μm-2 μm; and / or the material of the light conversion packaging layer includes an inorganic material or a metal oxide material.

[0027] The second aspect of the present application further provides a display device, comprising any display panel provided in the first aspect of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0029] Figure 1 is a structural schematic diagram of a display panel provided by the present application;

[0030] Figure 2 yes Figure 1 Enlarged view of the middle M region;

[0031] Figure 3 yes Figure 2 A cross-sectional view taken along the N-N' line;

[0032] Figure 4 yes Figure 2 A cross-sectional view taken along the line E-E';

[0033] Figure 5 yes Figure 1 Another magnified view of the middle M region;

[0034] Figure 6 yes Figure 5 A cross-sectional view along the L-L' line;

[0035] Figure 7 yes Figure 5 A cross-sectional view along the Y-Y' line;

[0036] Figure 8 yes Figure 1 Another magnified view of the middle M region;

[0037] Fig. 9 yes Figure 8 A cross-sectional view along the middle line X-X';

[0038] Fig.10 yes Figure 8 A cross-sectional view along the C-C' line;

[0039] Fig.11 yes Figure 1 Another magnified view of the middle M region;

[0040] Fig.12 yes Fig.11 A cross-sectional view along the middle line F-F';

[0041] Fig.13 yes Fig.11 A cross-sectional view along the middle line T-T';

[0042] Fig.14 yes Figure 5 Another cross-sectional view along the L-L' line;

[0043] Fig.15 yes Figure 5 Another cross-sectional view along the Y-Y' line;

[0044] Fig.16 yes Figure 5 Another cross-sectional view along the L-L' line;

[0045] Fig.17 yes Figure 5 Another cross-sectional view along the Y-Y' line;

[0046] Fig.18 yes Figure 8 Another cross-sectional view along the middle line X-X';

[0047] Fig.19 yes Figure 8 Another cross-sectional view along the C-C' line;

[0048] Fig. 20 It is a structural schematic diagram of a display device provided by the present application.

[0049] The reference numerals are as follows:

[0050] 1. Display panel; 11-substrate; A-pixel area; 12-light-emitting layer; 121-light-emitting unit; 13-light conversion layer; 130-light conversion structure; 131-light conversion part; 1311-first light conversion part; 1312-second light conversion part; 1313-third light conversion part; 132-isolation part; 14-light conversion encapsulation layer; 141-accommodation part; 142-sealing part; Q-accommodation space; 15-first sub-pixel; 16-second sub-pixel; P-isolation gap; 17-third sub-pixel; 18-first filling part; 19-flat layer; 20-filter layer; 201-filter part; 202-shielding part; 21-second filling part; 21-light-emitting unit encapsulation layer; 2-display device. DETAILED DESCRIPTION

[0051] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0052] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0053] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0054] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0055] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, according to an embodiment of the present application, a display panel 1 is provided, which includes a substrate 11, a light-emitting layer 12, a light-conversion layer 13 and a light-conversion encapsulation layer 14. The substrate 11 is provided with a plurality of pixel areas A. The light-emitting layer 12 is located on one side of the substrate 11, and includes a plurality of light-emitting units 121 located in the plurality of pixel areas A. The light-conversion layer 13 is located on the side of the light-emitting layer 12 away from the substrate 11, and includes a plurality of light-conversion parts 131 located in the plurality of pixel areas A, and each light-conversion part 131 corresponds to a light-emitting unit 121. The light conversion packaging layer 14 is located on the side of the light conversion layer 13 away from the light emitting layer 12. The light conversion packaging layer 14 includes a continuously arranged accommodating portion 141 and a sealing portion 142. The sealing portion 142 is located between adjacent accommodating portions 141. The accommodating portion 141 includes an accommodating space Q. The accommodating space Q accommodates a light conversion structure 130. The light conversion structure 130 includes at least one light conversion portion 131. The accommodating portion 141 covers a side surface of the light conversion structure 130 away from the substrate 11 and wraps the light conversion structure 130 along the circumference of the light conversion structure 130. The sealing portion 142 is in contact with the light emitting layer 12.

[0056] The display panel 1 provided in the present application includes a substrate 11, a light emitting layer 12, a light conversion layer 13 and a light conversion encapsulation layer 14 which are stacked. The substrate 11 includes a plurality of pixel areas A. The light emitting layer 12 includes a light emitting unit 121 located in the pixel area A. Each pixel area A may be provided with at least one light emitting unit 121. The light conversion layer 13 includes a light conversion portion 131 located in the pixel area A. Each pixel area A may be provided with at least one light conversion portion 131. The light emitting unit 121 corresponds to the light conversion portion 131 one by one. In each pair of one-to-one corresponding light emitting units 121 and light conversion portions 131, the orthographic projection of the light conversion portion 131 on the substrate 11 is at least partially overlapped with the orthographic projection of the light emitting unit 121 on the substrate 11. The light conversion portion 131 may emit light under the excitation of the light emitted by the light emitting unit 121. The light emitting colors of different light conversion portions 131 may be different. The light emitting colors of at least some of the light conversion portions 131 are different from the light emitting colors of the light emitting units 121. The light conversion encapsulation layer 14 is used to encapsulate the light conversion part 131 to protect the light conversion part 131 and isolate water vapor and oxygen, so as to improve the yield of the light conversion part 131. The light conversion encapsulation layer 14 includes a continuously arranged accommodating part 141 and a sealing part 142, wherein the sealing part 142 is located between adjacent accommodating parts 141, the sealing part 142 is in contact with the light emitting layer 12, and the sealing part 142 is used to achieve isolation between adjacent accommodating parts 141, so that adjacent accommodating parts 141 can be independently encapsulated. The accommodating portion 141 includes an accommodating space Q, and the accommodating space Q accommodates a light conversion structure 130. The light conversion structure 130 includes at least one light conversion portion 131. The accommodating portion 141 covers the side surface of the light conversion structure 130 that is away from the substrate 11 and wraps the light conversion structure 130 along the circumference of the light conversion structure 130, so that each accommodating portion 141 realizes independent packaging of a light conversion structure 130, that is, each accommodating portion 141 realizes independent packaging of at least one light conversion portion 131. When the packaging of one of the accommodating portions 141 fails, it is not easy to cause the packaging failure of the adjacent accommodating portions 141, which helps to improve the overall packaging yield, improve the reliability of the packaging, and then improve the reliability of the display panel 1.

[0057] In the above-mentioned embodiments, the light conversion structure 130 may include one light conversion portion 131 , or may include a plurality of light conversion portions 131 .

[0058] In the above embodiment, in each one-to-one corresponding light emitting unit 121 and light conversion unit 131, the orthographic projection of the light conversion unit 131 on the substrate 11 can cover the orthographic projection of the light emitting unit 121 on the substrate 11, thereby avoiding poor display caused by the light emitted by the light emitting unit 121 being directly emitted without color conversion by the light conversion unit 131, thereby improving the light output yield of the display panel 1.

[0059] In the above embodiment, the light conversion unit 131 includes quantum dot material or fluorescent material.

[0060] In a possible implementation, Figures 2 to 4 As shown, the pixel area A includes a first sub-pixel 15 and a second sub-pixel 16 having a light emitting color different from that of the first sub-pixel 15, the first sub-pixel 15 includes a light emitting unit 121, the second sub-pixel 16 includes at least one light emitting unit 121 and a light conversion portion 131 corresponding to the light emitting unit 121, and the orthographic projection of the sealing portion 142 on the substrate 11 at least partially overlaps with the orthographic projection of the first sub-pixel 15 on the substrate 11.

[0061] In the above embodiment, the pixel area A at least includes a first sub-pixel 15 and a second sub-pixel 16, and the first sub-pixel 15 and the second sub-pixel 16 have different light emission colors. The first sub-pixel 15 includes a light-emitting unit 121, but does not include a light conversion unit 131. The second sub-pixel 16 includes a light-emitting unit 121 and a light conversion unit 131 located on a side of the light-emitting unit 121 away from the substrate 11. The first sub-pixel 15 and the second sub-pixel 16 can be arranged adjacent to each other, the light conversion unit 131 in the second sub-pixel 16 is located in the receiving portion 141, the sealing portion 142 is located on a side of the light-emitting unit 121 in the first sub-pixel 15 away from the substrate 11, and the sealing portion 142 is continuously arranged with the receiving portion 141, so that the light conversion unit 131 in the second sub-pixel 16 can be independently packaged.

[0062] Specifically, the light emitting unit 121 can emit light of a third color. The light conversion unit 131 can emit light of a first color or a second color under the stimulation of the light emitted by the light emitting unit 121, that is, the light emission color of the second sub-pixel 16 can be the first color or the second color. The light emission color of the first sub-pixel 15 is the third color. Among them, the first color can be red, the second color can be green, and the third color can be blue.

[0063] In a possible implementation, Figure 3 and Figure 4As shown, the light conversion parts 131 in the light conversion layer 13 include an isolation gap P, the light conversion structure 130 includes one light conversion part 131, and at least part of the sealing part 142 is located in the isolation gap P. In the above embodiment, the light conversion structure 130 includes one light conversion part 131, and the light conversion parts 131 include an isolation gap P, so that each receiving part 141 only realizes the independent packaging of one light conversion part 131, and the sealing part 142 is at least partially located in the isolation gap P and contacts the light emitting layer 12 below, so as to realize the isolation and sealing of different receiving parts 141. In this embodiment, after the packaging of one receiving part 141 fails, only one light conversion part 131 is affected, which can reduce the interference with the adjacent light conversion part 131, that is, after one sub-pixel fails, the interference with the adjacent sub-pixel can be reduced, so that the yield of the display panel 1 can be improved. When the pixel area A includes at least the first sub-pixel 15 and the second sub-pixel 16, the above embodiment realizes the independent packaging of the first sub-pixel 15 and the second sub-pixel 16, so as to improve the packaging yield.

[0064] like Figure 2 and Figure 3 As shown, the pixel area A may also include a third sub-pixel 17, the third sub-pixel 17 includes at least one light-emitting unit 121 and a light conversion unit 131 corresponding to the light-emitting unit 121, the light-emitting color of the second sub-pixel 16 may be one of red and green, and the light-emitting color of the third sub-pixel 17 may be the other of red and green. Since the light conversion structure 130 includes a light conversion unit 131, the light conversion unit 131 in the third sub-pixel 17 is located in a receiving unit 141, and the receiving unit 141 is used to realize independent packaging of the third sub-pixel 17. That is, the first sub-pixel 15, the second sub-pixel 16 and the third sub-pixel 17 are all independently packaged. When the second sub-pixel 16 and the third sub-pixel 17 are arranged adjacent to each other and the packaging of one of them fails, it is not easy to cause the packaging failure of the other, thereby helping to improve the packaging yield. This embodiment realizes independent packaging at the sub-pixel level.

[0065] In another possible implementation, if Figure 5 and Figure 6 As shown, the light conversion structure 130 includes at least two light conversion portions 131 .

[0066] In the above embodiment, for the convenience of manufacturing, each light conversion structure 130 may include at least two light conversion parts 131 .

[0067] Specifically, the light conversion parts 131 in different light conversion structures 130 may form a repeating unit, that is, the number, arrangement and color of the light conversion parts 131 in different light conversion structures 130 may be the same, thereby improving the display uniformity of the display panel 1 .

[0068] Specifically, the light conversion parts 131 in each light conversion structure 130 may be disposed adjacent to each other and the side walls of two adjacent light conversion parts 131 may be disposed in contact with each other.

[0069] The pixel area A may also include a third sub-pixel 17, the third sub-pixel 17 includes at least one light-emitting unit 121 and a light conversion unit 131 corresponding to the light-emitting unit 121, the light-emitting color of the second sub-pixel 16 may be one of red and green, and the light-emitting color of the third sub-pixel 17 may be the other of red and green. Since the light conversion structure 130 includes at least two light conversion units 131, the light conversion unit 131 in the third sub-pixel 17 and the light conversion unit 131 in the second sub-pixel 16 may be located in the same accommodation unit 141, and the accommodation unit 141 is used to realize synchronous packaging of the third sub-pixel 17 and the second sub-pixel 16. That is, the first sub-pixel 15 is independently packaged, and the second sub-pixel 16 and the third sub-pixel 17 are synchronously packaged. This embodiment realizes independent packaging at the pixel level.

[0070] In a possible implementation, Figure 5 , Figure 6 and Figure 7 As shown, when the light conversion structure 130 includes at least two light conversion parts 131, adjacent light conversion parts 131 are connected to each other in the accommodation space Q. This simplifies the preparation process, increases the area ratio of the light conversion part 131 in the light conversion layer 13, and improves the aperture ratio.

[0071] In another possible implementation, if Figure 8 , Fig. 9 and Fig.10 As shown, when the light conversion structure 130 includes at least two light conversion parts 131 , the light conversion structure 130 further includes an isolation part 132 disposed around the light conversion parts 131 . In the accommodation space Q, adjacent light conversion parts 131 are connected to each other through the isolation part 132 .

[0072] In the above embodiment, an isolation portion 132 is arranged between the light conversion portions 131. The isolation portion 132 is arranged around the light conversion portions 131 to isolate and define adjacent light conversion portions 131. During the preparation process, the isolation portion 132 can be formed first to define the position of the light conversion portion 131, thereby improving the problem of color crosstalk between adjacent light conversion portions 131 caused by the flow of the light conversion portions 131.

[0073] In the above embodiment, within the accommodating space Q, adjacent light conversion parts 131 are connected to each other through the isolating part 132, that is, the side wall of the light conversion part 131 is arranged in contact with the isolating part 132, and the accommodating part 141 simultaneously encapsulates the light conversion part 131 located inside and the isolating part 132 arranged around the light conversion part 131.

[0074] In a possible implementation, Figure 8 As shown, the multiple light conversion parts 131 located in the same pixel area A include a first light conversion part 1311 and a second light conversion part 1312. The first light conversion part 1311 is used to convert the third color light emitted by the light-emitting unit 121 into the first color light. The second light conversion part 1312 is used to convert the third color light emitted by the light-emitting unit 121 into the second color light. The colors of the first color light and the second color light are different.

[0075] In the above embodiment, the second sub-pixel 16 includes a first light conversion unit 1311, the third sub-pixel 17 includes a second light conversion unit 1312, the first color light can be one of red light and green light, the second color light can be the other of red light and green light, and the third color light can be blue light.

[0076] In the above embodiment, the first light conversion unit 1311 and the second light conversion unit 1312 are arranged in the same pixel area A, so that the pixel area A includes the third sub-pixel 17 and the second sub-pixel 16 and the first sub-pixel 15 with different light output colors, so that the pixel area A can form at least one pixel.

[0077] In another possible implementation, if Fig.11 , Fig.12 and Fig.13 As shown, the light conversion layer 13 includes a first light conversion portion 1311, a second light conversion portion 1312 and a third light conversion portion 1313 located in the pixel area A. The first light conversion portion 1311 is used to convert the third color light emitted by the light emitting unit 121 into the first color light. The second light conversion portion 1312 is used to convert the third color light emitted by the light emitting unit 121 into the second color light. The third light conversion portion 1313 is colorless and light-transmissive.

[0078] In the pixel region A, the number of the accommodation portions 141 is the same as the number of the light conversion portions 131 , the accommodation portions 141 correspond to the light conversion portions 131 one by one, and the light conversion structure 130 includes corresponding light conversion portions 131 .

[0079] In the above embodiment, the light conversion layer 13 includes a first light conversion portion 1311, a second light conversion portion 1312 and a third light conversion portion 1313 located in the pixel area A. The first light conversion portion 1311, the second light conversion portion 1312 and the third light conversion portion 1313 can be arranged continuously or at intervals. When the first light conversion portion 1311, the second light conversion portion 1312 and the third light conversion portion 1313 are arranged at intervals, a shading portion 202 can be arranged between adjacent first light conversion portions 1311, second light conversion portions 1312 and third light conversion portions 1313 to prevent crosstalk between adjacent sub-pixels, and the position of the light conversion portion 131 can be limited by the shading portion 202 to facilitate preparation.

[0080] In the above embodiment, the second sub-pixel 16 includes a first light conversion unit 1311, the third sub-pixel 17 includes a second light conversion unit 1312, and the first sub-pixel 15 includes a third light conversion unit 1313. The first color light may be one of the red light and the green light, the second color light may be the other of the red light and the green light, and the third color light may be the blue light. The third light conversion unit 1313 is a colorless and light-transmitting film layer, which is used to directly transmit the blue light emitted by the light-emitting unit 121.

[0081] In the above embodiment, the number of the accommodating portions 141 is the same as the number of the light conversion portions 131, and the accommodating portions 141 correspond one-to-one to the light conversion portions 131, that is, each light conversion structure 130 includes a light conversion portion 131, thereby realizing independent packaging of the first sub-pixel 15, the second sub-pixel 16 and the third sub-pixel 17 to further improve the packaging yield.

[0082] In the above embodiment, the adjacent first light conversion parts 1311 , second light conversion parts 1312 and third light conversion parts 1313 are arranged at intervals, so that the packaging part can be easily contacted with the light emitting layer 12 to achieve isolation of adjacent receiving parts 141 .

[0083] In a possible implementation, Fig.14 and Fig.15 As shown, the display panel 1 further includes a first filling portion 18 , which is located on a side of the sealing portion 142 in the light conversion encapsulation layer 14 away from the substrate 11 and between adjacent accommodating portions 141 .

[0084] In the above embodiment, the display panel 1 further includes a first filling portion 18. When the light conversion portions 131 are arranged at intervals, the first filling portion 18 can be used to fill the side of the sealing portion 142 located between adjacent light conversion portions 131 away from the substrate 11. The side of the first filling portion 18 away from the substrate 11 and the side of the accommodating portion 141 away from the substrate 11 can be arranged flush, so as to reduce the step difference between the film layers and improve the preparation yield of the subsequent film layers. When the first sub-pixel 15 in the display panel 1 does not include the light conversion portion 131, the first filling portion 18 can be used to fill the space on the side of the sealing portion 142 located in the first sub-pixel 15 away from the substrate 11, so as to reduce the step difference between the film layers and improve the preparation yield of the subsequent film layers.

[0085] In a possible implementation, Fig.14 and Fig.15 As shown, the display panel 1 further includes a planar layer 19 , which is located on a side of the light conversion encapsulation layer 14 and the first filling portion 18 that is away from the substrate 11 .

[0086] In the above embodiment, a flat layer 19 is further included, and the flat layer 19 is located on the side of the light conversion encapsulation layer 14 and the first filling portion 18 away from the substrate 11, for achieving flattening. The glass cover plate can be bonded on the side of the flat layer 19 away from the substrate 11, and the provision of the flat layer 19 helps to improve the bonding yield of the glass cover plate and reduce the probability of bubble generation.

[0087] In a possible implementation, Fig.16 and Fig.17 As shown, the flat layer 19 is formed integrally with the first filling portion 18 .

[0088] In the above embodiment, the flat layer 19 can be integrally formed with the first filling portion 18 , that is, the flat layer 19 and the first filling portion 18 can be prepared using the same preparation process, thereby helping to simplify the preparation process and reduce the preparation cost.

[0089] Specifically, the planar layer 19 and the first filling portion 18 are made of the same material, which may be an organic material.

[0090] Specifically, the material of the planar layer 19 and the first filling portion 18 may be silicon nitride, silicon oxide, or polyimide (PI), etc.

[0091] In a possible implementation, Figures 15 to 17 As shown, the display panel 1 also includes a filter layer 20, which is located between the light conversion packaging layer 14 and the flat layer 19. The filter layer 20 includes a filter portion 201 corresponding to the light conversion portion 131. The display panel 1 also includes a second filling portion 21 located between partially adjacent filter portions 201, and the second filling portion 21 is located between the first filling portion 18 and the flat layer 19.

[0092] In the above embodiment, the display panel 1 further includes a filter layer 20 for further improving the purity of the output light and reducing reflection. The filter layer 20 is located between the light conversion packaging layer 14 and the flat layer 19. The filter layer 20 is used to filter the output light of the light conversion layer 13. Therefore, the filter layer 20 includes a filter portion 201 corresponding to the color of the light conversion portion 131.

[0093] In the above embodiment, the display panel 1 also includes a second filling portion 21 located between partially adjacent filter portions 201, and the second filling portion 21 is located between the first filling portion 18 and the flat layer 19. The second filling portion 21 is used to achieve flattening of the area between the filter portions 201, reduce the step difference between the film layers, and help improve the preparation yield of subsequent film layers.

[0094] Alternatively, adjacent filter portions 201 may be disposed in contact with each other to simplify the manufacturing process.

[0095] In a possible implementation, Fig.16 , Fig.17 As shown, the flat layer 19, the first filling portion 18, and the second filling portion 21 are integrally formed.

[0096] In the above embodiment, the second filling part 21 can be integrally formed with the flat layer 19 and the first filling part 18, that is, the second filling part 21 can be prepared by the same preparation process as the flat layer 19 and the first filling part 18, thereby helping to simplify the preparation process and reduce the preparation cost.

[0097] Specifically, the planar layer 19 , the first filling part 18 , and the second filling part 21 are made of the same material, which may be an organic material.

[0098] Specifically, the material of the planar layer 19 , the first filling portion 18 , and the second filling portion 21 may be silicon nitride, silicon oxide, or polyimide (PI), etc.

[0099] In a feasible embodiment, the material of the planar layer 19 includes silicon oxide, silicon nitride or organic material; and / or the material of the first filling part 18 includes silicon oxide, silicon nitride or organic material; and / or the material of the second filling part 21 includes silicon oxide, silicon nitride or organic material.

[0100] In the display panel 1 , the flat layer 19 , the first filling portion 18 , and the second filling portion 21 can be prepared separately. When the flat layer 19 , the first filling portion 18 , and the second filling portion 21 are made of the same material, they can be prepared simultaneously, thereby simplifying the preparation process.

[0101] In a possible implementation, Fig.18 and Fig.19As shown, the filter layer 20 further includes a shading portion 202 , which is located between adjacent filter portions 201 , and / or between adjacent second filling portions 21 , and / or between adjacent filter portions 201 and the second filling portions 21 .

[0102] In the above embodiment, the position of the filter part 201 can be limited by forming the light shielding part 202 disposed in the same layer as the filter part 201 , and can be used to prevent mutual interference between adjacent filter parts 201 .

[0103] In a feasible implementation manner, the edge of the orthographic projection of the accommodation portion 141 on the substrate 11 coincides with the edge of the orthographic projection of the light emitting unit 121 on the substrate 11, or, as Fig.16 and Fig.17 As shown, the edge of the orthographic projection of the accommodation portion 141 on the substrate 11 does not overlap with the orthographic projection of the light emitting unit 121 on the substrate 11 .

[0104] In the above embodiment, the edge of the orthographic projection of the accommodating portion 141 on the substrate 11 coincides with the edge of the orthographic projection of the light-emitting unit 121 on the substrate 11, that is, the orthographic projection of the accommodating portion 141 on the substrate 11 coincides with the orthographic projection of the light-emitting unit 121 on the substrate 11, so that the light emitted by the light-emitting unit 121 all passes through the accommodating portion 141, which helps to improve the uniformity of the light.

[0105] In the above embodiment, the edge of the orthographic projection of the accommodating portion 141 on the substrate 11 does not overlap with the orthographic projection of the light emitting unit 121 on the substrate 11, that is, the orthographic projection of the light emitting unit 121 on the substrate 11 is located inside the orthographic projection of the accommodating portion 141 on the substrate 11, so that the light emitted by the light emitting unit 121 all passes through the accommodating portion 141, which helps to improve the uniformity of the light.

[0106] In the above embodiment, the orthographic projection of the light emitting unit 121 on the substrate 11 is located inside the orthographic projection of the accommodating portion 141 on the substrate 11 or coincides with the orthographic projection of the accommodating portion 141 on the substrate 11, and the light conversion portion 131 is located inside the accommodating portion 141, so that the overlapping area of ​​the orthographic projection of the light emitting unit 121 on the substrate 11 and the orthographic projection of the light conversion portion 131 on the substrate 11 can be larger, thereby reducing the probability of leakage of the third color light at the edges of the first light conversion portion 1311 and the second light conversion portion 1312, thereby helping to improve the display effect.

[0107] In a possible implementation, Fig.16 and Fig.17As shown, the orthographic projection of the light-emitting unit 121 on the substrate 11 is located inside the orthographic projection of the light-converting portion 131 on the substrate 11, so that the light emitted by the light-emitting unit 121 opposite to the first light-converting portion 1311 or the second light-converting portion 1312 can be converted by the first light-converting portion 1311 or the second light-converting portion 1312 before being emitted, reducing the probability of leakage of the third color light at the edge of the first light-converting portion 1311 or the second light-converting portion 1312, thereby helping to improve the display effect. In a feasible embodiment, the thickness range of the light-converting encapsulation layer 14 is 0.01 μm-2 μm.

[0108] In the above embodiments, the thickness of the light conversion packaging layer 14 may be 0.01 μm, 0.5 μm, 0.8 μm, 1.0 μm, 1.56 μm, 1.98 μm, 2 μm, etc.

[0109] If the thickness of the light conversion packaging layer 14 is too thin, it may easily cause packaging failure. If the thickness of the light conversion packaging layer 14 is too thick, it may not be conducive to the thinness of the display panel 1 and may have an adverse effect on the light output efficiency. When the thickness of the light conversion packaging layer 14 is within the above range, the packaging performance can be taken into account while the display panel 1 is thin and light with high light output efficiency.

[0110] In a feasible implementation, the material of the light conversion packaging layer 14 includes an inorganic material or a metal oxide material.

[0111] In the above-mentioned embodiments, the inorganic material or the metal oxide material can achieve a good effect of isolating water and oxygen, and can achieve a good packaging effect for the light conversion unit 131 .

[0112] In a possible implementation, Fig.18 and Fig.19 As shown, the light-emitting layer 12 also includes a light-emitting unit encapsulation layer 21 located on the side of the light-emitting unit 121 away from the substrate 11, and the light-emitting unit encapsulation layer 21 may include a first encapsulation layer, a second encapsulation layer and a third encapsulation layer stacked in a direction away from the substrate 11, wherein the first encapsulation layer and the third encapsulation layer are made of inorganic materials, and the second encapsulation layer is made of organic materials.

[0113] In the above embodiment, the sealing portion 142 is in direct contact with the third encapsulation layer. The sealing portion 142 and the third encapsulation layer may be made of the same inorganic material, which can improve the sealing yield after contact.

[0114] The present application also provides a display device 2, such as Fig. 20 As shown, it includes any one of the display panels 1 provided in the above embodiments of the present application.

[0115] The display device in the embodiment of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart fixed-line phones, consoles and other devices with display functions. The yield of the display device is effectively improved, which helps to improve the user experience.

[0116] The above are only preferred specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A display panel, characterized in that: include: A substrate is provided with a plurality of pixel areas; A light-emitting layer, located on one side of the substrate, comprising a plurality of light-emitting units located in a plurality of the pixel regions; a light conversion layer, located on a side of the light emitting layer away from the substrate, comprising a plurality of light conversion parts located in a plurality of the pixel regions, each of the light conversion parts corresponding to one of the light emitting units; A light conversion packaging layer is located on a side of the light conversion layer away from the light emitting layer, the light conversion packaging layer includes a continuously arranged accommodating portion and a sealing portion, the sealing portion is located between adjacent accommodating portions, the accommodating portion includes an accommodating space, the accommodating space accommodates a light conversion structure, the light conversion structure includes at least one light conversion portion, the accommodating portion covers a side surface of the light conversion structure away from the substrate and wraps the light conversion structure along the circumference of the light conversion structure; the sealing portion is in contact with the light emitting layer.

2. The display panel according to claim 1, characterized in that: The pixel area includes a first sub-pixel and a second sub-pixel with a light emitting color different from that of the first sub-pixel, the first sub-pixel includes the light-emitting unit, the second sub-pixel includes at least one of the light-emitting units and the light conversion portion corresponding to the light-emitting unit, and the orthographic projection of the sealing portion on the substrate at least partially overlaps with the orthographic projection of the first sub-pixel on the substrate.

3. The display panel according to claim 2, characterized in that: An isolation gap is formed between the light conversion parts in the light conversion layer, the light conversion structure includes one light conversion part, and at least a part of the sealing part is located in the isolation gap.

4. The display panel according to claim 2, characterized in that: The light conversion structure includes at least two light conversion parts.

5. The display panel according to claim 4, characterized in that: In the accommodation space, adjacent light conversion parts are connected to each other; or, The light conversion structure further includes an isolation portion disposed around the light conversion portion. In the accommodation space, adjacent light conversion portions are connected to each other through the isolation portion.

6. The display panel according to claim 4, characterized in that: The multiple light conversion parts located in the same pixel area include a first light conversion part and a second light conversion part, the first light conversion part is used to convert the third color light emitted by the light emitting unit into a first color light, and the second light conversion part is used to convert the third color light emitted by the light emitting unit into a second color light, and the colors of the first color light and the second color light are different.

7. The display panel according to claim 1, characterized in that: The light conversion layer comprises a first light conversion part, a second light conversion part and a third light conversion part located in the pixel area, wherein the first light conversion part is used to convert the third color light emitted by the light emitting unit into the first color light, the second light conversion part is used to convert the third color light emitted by the light emitting unit into the second color light, and the third light conversion part is colorless and light-transmissive; In the pixel area, the number of the accommodating parts is the same as the number of the light conversion parts, the accommodating parts correspond to the light conversion parts one by one, and the light conversion structure includes the corresponding light conversion parts.

8. The display panel according to claim 1, characterized in that: The display panel further includes a first filling portion, which is located on a side of the sealing portion in the light conversion encapsulation layer facing away from the substrate and between adjacent accommodating portions.

9. The display panel according to claim 8, characterized in that: The display panel further includes a planar layer, and the planar layer is located on a side of the light conversion encapsulation layer and the first filling portion away from the substrate.

10. The display panel according to claim 9, characterized in that: The flat layer and the first filling portion are integrally formed.

11. The display panel according to claim 9, characterized in that: The display panel also includes a filter layer, which is located between the light conversion packaging layer and the flat layer. The filter layer includes a filter part corresponding to the light conversion part. The display panel also includes a second filling part located between partially adjacent filter parts, and the second filling part is located between the first filling part and the flat layer.

12. The display panel according to claim 11, characterized in that: The flat layer, the first filling part, and the second filling part are integrally formed.

13. The display panel according to claim 11, characterized in that: The material of the planar layer includes silicon oxide, silicon nitride or an organic material; and / or the material of the first filling part includes silicon oxide, silicon nitride or an organic material; and / or the material of the second filling part includes silicon oxide, silicon nitride or an organic material.

14. The display panel according to claim 11, characterized in that: The filter layer further includes a shading portion, wherein the shading portion is located between adjacent filter portions, and / or the shading portion is located between adjacent second filling portions, and / or the shading portion is located between adjacent filter portions and the second filling portions.

15. The display panel according to claim 1, characterized in that: The edge of the orthographic projection of the accommodating portion on the substrate coincides with the edge of the orthographic projection of the light emitting unit on the substrate, or the edge of the orthographic projection of the accommodating portion on the substrate does not overlap with the edge of the orthographic projection of the light emitting unit on the substrate.

16. The display panel according to claim 1, characterized in that: The thickness of the light conversion packaging layer is in the range of 0.01 μm to 2 μm; and / or, the material of the light conversion packaging layer includes an inorganic material or a metal oxide material.

17. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-16.

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