Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel comprises a first substrate and a second substrate. The first substrate comprises a first substrate, a first pixel definition layer, a light-emitting device layer, a first encapsulation layer and a first light shielding layer. The second substrate comprises a second substrate, a second pixel definition layer, a quantum dot layer, a second encapsulation layer and a second light shielding layer. The first encapsulation layer comprises a plurality of first encapsulation units, and the first encapsulation units are located in the first light shielding openings of the first light shielding layer. The second encapsulation layer comprises a plurality of second encapsulation units, and the second encapsulation units are located in the second light shielding openings of the second light shielding layer. The first encapsulation layer and the second encapsulation layer are patterned to form the first encapsulation units and the second encapsulation units. The first light shielding layer and the second light shielding layer can shield the large-angle light emitted from the light-emitting units, and the light leakage between adjacent pixels can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND

[0002] Quantum dot organic light-emitting display (QD-OLED) has wider color gamut, higher brightness and lower power consumption than the current mainstream organic light-emitting display (OLED) display technology, and gradually enters the consumer's field of vision.

[0003] The quantum dot organic light-emitting display device is formed by bonding an OLED light-emitting substrate and a quantum dot substrate, the OLED light-emitting substrate includes a plurality of OLED light-emitting units, and the quantum dot substrate includes a plurality of quantum dot units. The light emitted by the OLED light-emitting unit enters the corresponding quantum dot unit to excite the quantum dot to emit light of a corresponding color. However, since both the OLED light-emitting unit and the quantum dot unit need to be encapsulated by an encapsulation layer, the encapsulation layer is provided on the whole surface and is transparent, the light emitted by the OLED light-emitting unit will pass through the encapsulation layer and enter the quantum dot unit of the adjacent pixel, which is easy to cause light leakage between adjacent pixels and lead to optical crosstalk problem, affecting the display effect. SUMMARY

[0004] The display panel and the display device provided by the embodiments of the present application can solve the technical problem of optical crosstalk caused by light leakage between adjacent pixels of the existing display panel and display device.

[0005] The display panel provided by the embodiments of the present application comprises a first substrate and a second substrate arranged oppositely, wherein the first substrate comprises:

[0006] a first substrate;

[0007] a first pixel definition layer arranged on a side of the first substrate close to the second substrate and comprising a plurality of first pixel openings;

[0008] a light-emitting device layer comprising a plurality of light-emitting units, the light-emitting units being located in the first pixel openings;

[0009] a first encapsulation layer comprising a plurality of first encapsulation units arranged at intervals and corresponding to the light-emitting units, the first encapsulation units covering a side of the light-emitting units close to the second substrate; and

[0010] A first light-blocking layer is disposed on a side of the first pixel definition layer close to the second substrate, and the first light-blocking layer comprises a plurality of first light-blocking openings, and the first encapsulation units are located in the first light-blocking openings.

[0011] The second substrate comprises:

[0012] A second substrate;

[0013] A second pixel definition layer is disposed on a side of the second substrate close to the first substrate and comprises a plurality of second pixel openings corresponding to the light-emitting units;

[0014] A quantum dot layer comprises a plurality of quantum dot units, and the quantum dot units are located in the second pixel openings;

[0015] A second encapsulation layer comprises a plurality of second encapsulation units corresponding to the quantum dot units, and the second encapsulation units cover a side of the quantum dot units close to the second substrate; and

[0016] A second light-blocking layer is disposed on a side of the second pixel definition layer close to the first substrate, and the second light-blocking layer comprises a plurality of second light-blocking openings, and the second encapsulation units are located in the second light-blocking openings.

[0017] According to the display panel provided by the embodiment of the present application, a side surface of the first light-blocking layer close to the second substrate is a first surface, and a side surface of the second light-blocking layer close to the first substrate is a second surface; wherein the first surface is attached to the second surface.

[0018] According to the display panel provided by the embodiment of the present application, a side surface of the first encapsulation unit close to the second substrate is a third surface, and a side surface of the second encapsulation unit close to the first substrate is a fourth surface; wherein the first surface is located on a side of the third surface close to the second substrate, and the second surface is located on a side of the fourth surface close to the first substrate.

[0019] According to the display panel provided by the embodiment of the present application, the first light-blocking layer is integrally formed with the first pixel definition layer, and / or the second light-blocking layer is integrally formed with the second pixel definition layer.

[0020] According to the display panel provided by the embodiment of the present application, the first light-blocking layer is integrally formed with the second light-blocking layer.

[0021] According to the display panel provided by the embodiment of the present application, the first light-shielding opening is projected on the first substrate to cover the projection of the first pixel opening on the first substrate, and the second light-shielding opening is projected on the second substrate to cover the projection of the second pixel opening on the second substrate.

[0022] According to the display panel provided by the embodiment of the present application, the projection of the first light-shielding opening on the first substrate is located in the projection of the second light-shielding opening on the first substrate.

[0023] According to the display panel provided by the embodiment of the present application, the light-emitting unit is a blue light-emitting unit, and the quantum dot unit comprises a red quantum dot unit, a blue quantum dot unit and a light-transmitting layer.

[0024] The second substrate further comprises a color filter layer, which is arranged on the side of the second substrate close to the first substrate and comprises a plurality of color resist corresponding to the light-emitting unit, wherein the plurality of color resist comprises red color resist, green color resist and blue color resist, the red color resist is arranged corresponding to the red quantum dot unit, the green color resist is arranged corresponding to the green quantum dot unit, and the blue color resist is arranged corresponding to the light-transmitting layer.

[0025] According to the display panel provided by the embodiment of the present application, the display panel further comprises a transparent adhesive layer arranged between the first substrate and the second substrate.

[0026] The embodiment of the present application provides a display device comprising the display panel.

[0027] Beneficial effects: in the display panel and display device provided by the embodiment of the present application, the first encapsulation layer arranged on the whole surface of the first substrate is patterned to form a plurality of first encapsulation units arranged at intervals and corresponding to the light-emitting unit, the second encapsulation layer arranged on the whole surface of the second substrate is patterned to form a plurality of second encapsulation units arranged at intervals and corresponding to the quantum dot unit; a first light-shielding layer is formed on the side of the first pixel definition layer close to the second substrate, the first encapsulation unit is located in the first light-shielding opening of the first light-shielding layer, a second light-shielding layer is formed on the side of the second pixel definition layer close to the first substrate, and the second encapsulation unit is located in the second light-shielding opening of the second light-shielding layer. The first light-shielding layer and the second light-shielding layer are used to shield the large-angle light emitted from the light-emitting unit, so as to prevent the light from entering the quantum dot unit in the adjacent pixel, thereby avoiding the optical crosstalk problem caused by the light leakage between the adjacent pixels, and improving the display effect. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0029] Figure 1 The first cross-sectional structure schematic diagram of the display panel provided by the embodiments of the present application;

[0030] Figure 2 The second cross-sectional structure schematic diagram of the display panel provided by the embodiments of the present application;

[0031] Figure 3 The third cross-sectional structure schematic diagram of the display panel provided by the embodiments of the present application;

[0032] Figure 4 The fourth cross-sectional structure schematic diagram of the display panel provided by the embodiments of the present application;

[0033] Figure 5 The fifth cross-sectional structure schematic diagram of the display panel provided by the embodiments of the present application.

[0034] Explanation of reference signs:

[0035] 1, first substrate; 11, first substrate; 12, first pixel definition layer; 121, first pixel opening; 13, light emitting device layer; 131, light emitting unit; 131B, blue light emitting unit; 14, first encapsulation layer; 141, first encapsulation unit; 15, first light shielding layer; 151, first light shielding opening;

[0036] 2, second substrate; 21, second substrate; 22, second pixel definition layer; 221, second pixel opening; 23, quantum dot layer; 231, quantum dot unit; 231R, red quantum dot unit; 231G, green quantum dot unit; 232, light transmission layer; 24, second encapsulation layer; 241, second encapsulation unit; 25, second light shielding layer; 251, second light shielding opening; 26, color film layer; 261, color resistance; 261R, red color resistance; 261G, green color resistance; 261B, blue color resistance; 262, black matrix;

[0037] 3, transparent adhesive layer. DETAILED DESCRIPTION

[0038] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described in the description of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0039] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0040] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.

[0041] The embodiments of the present application provide a display panel and a display device. The following will be described in detail respectively. It should be noted that the description order of the following embodiments is not limited as the preferred order of the embodiments.

[0042] Please refer to Figure 1 The embodiments of the present application provide a display panel, which comprises a first substrate 1 and a second substrate 2 arranged oppositely. Specifically, the first substrate 1 is an OLED light-emitting substrate, and the second substrate 2 is a quantum dot substrate.

[0043] Specifically, the first substrate 1 comprises a first substrate 11, a first pixel definition layer 12, a light-emitting device layer 13, a first encapsulation layer 14 and a first light-shielding layer 15. The first pixel definition layer 12 is arranged on the side of the first substrate 11 close to the second substrate 2 and comprises a plurality of first pixel openings 121. The light-emitting device layer 13 comprises a plurality of light-emitting units 131, and the light-emitting units 131 are located in the first pixel openings 121. The first encapsulation layer 14 comprises a plurality of first encapsulation units 141 arranged at intervals and corresponding to the light-emitting units 131, and the first encapsulation units 141 cover the side of the light-emitting units 131 close to the second substrate 2. The first light-shielding layer 15 is arranged on the side of the first pixel definition layer 12 close to the second substrate 2, and the second light-shielding layer 25 comprises a plurality of first light-shielding openings 151, and the first encapsulation units 141 are located in the first light-shielding openings 151.

[0044] Specifically, the second substrate 2 comprises a second substrate 21, a second pixel definition layer 22, a quantum dot layer 23, a second encapsulation layer 24 and a second light shielding layer 25. The second pixel definition layer 22 is arranged on the side of the second substrate 21 close to the first substrate 1 and comprises a plurality of second pixel openings 221 arranged correspondingly to the light emitting units 131. The quantum dot layer 23 comprises a plurality of quantum dot units 231, which are located in the second pixel openings 221. The second encapsulation layer 24 comprises a plurality of second encapsulation units 241 arranged correspondingly to the quantum dot units 231, which cover the side of the quantum dot units 231 close to the second substrate 2. The second light shielding layer 25 is arranged on the side of the second pixel definition layer 22 close to the first substrate 1 and comprises a plurality of second light shielding openings 251, in which the second encapsulation units 241 are located.

[0045] It can be understood that, by patterning the first encapsulation layer 14 arranged on the whole surface of the first substrate 1 to form a plurality of first encapsulation units 141 arranged at intervals and correspondingly to the light emitting units 131, and patterning the second encapsulation layer 24 arranged on the whole surface of the second substrate 2 to form a plurality of second encapsulation units 241 arranged at intervals and correspondingly to the quantum dot units 231, and forming the first light shielding layer 15 on the side of the first pixel definition layer 12 close to the second substrate 2, the first encapsulation units 141 being located in the first light shielding openings 151 of the first light shielding layer 15, and forming the second light shielding layer 25 on the side of the second pixel definition layer 22 close to the first substrate 1, the second encapsulation units 241 being located in the second light shielding openings 251 of the second light shielding layer 25, the first light shielding layer 15 and the second light shielding layer 25 are used to shield the large-angle light emitted from the light emitting units 131, so as to prevent the light from entering the quantum dot units 231 in the adjacent pixels, thereby avoiding the optical crosstalk problem caused by the light leakage between the adjacent pixels, and facilitating the improvement of the display effect.

[0046] Specifically, the first substrate 1 further comprises a driving circuit layer and a planarization layer, the driving circuit layer is located on the first substrate 11, the planarization layer covers the driving circuit layer, and the first pixel definition layer 12 is located on the planarization layer. The driving circuit layer comprises a plurality of pixel driving circuits, the pixel driving circuits are electrically connected with the light emitting units 131 to drive the light emitting units 131 to emit light. The pixel driving circuit can comprise a plurality of thin film transistors (T) and a storage capacitor (C), and the pixel driving circuit can be of a structure of 3T1C, 4T1C, 5T1C, 5T2C, 6T1C or 7T1C, and the present disclosure does not limit this. The driving circuit layer can further comprise a plurality of data lines (not shown in the figure) and a plurality of gate lines (not shown in the figure), and other signal lines (not shown in the figure).

[0047] Specifically, the light emitting device layer 13 further comprises a first electrode and a second electrode, the first electrode is located on the driving circuit layer, and the first pixel opening 121 exposes the first electrode. The light emitting unit 131 comprises an organic light emitting layer, the organic light emitting layer is located on the first electrode, and the second electrode is located on the organic light emitting layer and the first pixel definition layer 12. Specifically, the first electrode can be an anode, and the second electrode can be a cathode. The organic light emitting layer can further comprise any one or more film layers of a hole injection layer, a hole transport layer, an electron transport layer and an electron injection layer.

[0048] Specifically, the light emitting unit 131 is a blue light emitting unit 131B, and the blue light emitting unit 131B is used to emit blue light or blue-green light. The quantum dot unit 231 comprises a red quantum dot unit 231R, a blue quantum dot unit 231B and a light transmission layer 232, and the light emitted by the blue light emitting unit 131B enters the corresponding red quantum dot unit 231R, blue quantum dot unit 231B and light transmission layer 232. Specifically, the red quantum dot unit 231R is configured to convert the blue light or blue-green light emitted by the corresponding blue light emitting unit 131B into red light, the green quantum dot unit 231G is configured to convert the blue light or blue-green light emitted by the corresponding blue light emitting unit 131B into green light, and the light transmission layer 232 is configured to transmit the blue light or blue-green light emitted by the corresponding blue light emitting unit 131B.

[0049] It can be understood that the red quantum dot unit 231R and the corresponding blue quantum dot unit 231B are used to constitute a red sub-pixel, the green quantum dot unit 231G and the corresponding blue quantum dot unit 231B are used to constitute a green sub-pixel, and the light transmission layer 232 and the corresponding blue quantum dot unit are used to constitute a blue sub-pixel.

[0050] It should be noted that for the blue sub-pixel, since the light emitted by the blue light emitting unit 131B is blue light or blue-green light itself, there is no need to further set a blue quantum dot layer 23, and the transparent layer 232 is set. The transparent layer 232 can be an air layer or a transparent material layer. For example, the transparent layer 232 can be a transparent polymer resin material, such as acrylic, etc. as a transparent material layer, and in order to further improve the light extraction efficiency of the blue sub-pixel, reflective particles capable of reflecting blue light to the light emitting surface can be added in the transparent material layer.

[0051] Further, the second substrate 2 further comprises a color filter layer 26, which is arranged on the side of the second substrate 21 close to the first substrate 1, and comprises a plurality of color resist corresponding to the light emitting unit 131, the plurality of color resist 261 comprises red color resist 261R, green color resist 261G and blue color resist 261B, the red color resist 261R is arranged corresponding to the red quantum dot unit 231R, the green color resist 261G is arranged corresponding to the green quantum dot unit 231G, and the blue color resist 261B is arranged corresponding to the transparent layer 232.

[0052] Specifically, the color filter layer 26 further comprises a plurality of black matrices 262, and the black matrices 262 are arranged between adjacent two color resist 261.

[0053] Specifically, the first encapsulation layer 14 is used to encapsulate the light emitting unit 131 to avoid the intrusion of external water and oxygen to the light emitting unit 131, and correspondingly, the second encapsulation layer 24 is used to encapsulate the quantum dot unit 231 to avoid the intrusion of external water and oxygen to the quantum dot unit 231.

[0054] Optionally, the first encapsulation layer 14 can comprise a plurality of inorganic material layers stacked, or can comprise a first inorganic material layer, an organic material layer and a second inorganic material layer stacked in sequence away from the first substrate 11. The materials of the first inorganic material layer and the second inorganic material layer can include any one or more of silicon nitride, silicon oxide and silicon oxynitride, and the material of the organic material layer can be resin.

[0055] Optionally, the second encapsulation layer 24 can be the same material as the first encapsulation layer 14, and exemplarily, the second encapsulation layer 24 can comprise a plurality of inorganic material layers stacked, or can comprise a first inorganic material layer, an organic material layer and a second inorganic material layer stacked in sequence away from the second substrate 21.

[0056] Specifically, the first light shielding layer 15 and the second light shielding layer 25 are both made of light shielding material, which is used to shield the large angle light emitted from the light emitting unit 131, so as to avoid the large angle light from entering the quantum dot unit 231 in the adjacent pixel. For example, the light emitted from the blue light emitting unit 131B in the red sub-pixel should enter the corresponding red quantum dot unit 231R. If the first light shielding layer 15 and the second light shielding layer 25 are not provided, a part of the light may pass through the first encapsulation layer 14 and the second encapsulation layer 24 and enter the adjacent green quantum dot unit 231G or the light transmission layer 232. However, in the embodiment of the present application, the first light shielding layer 15 and the second light shielding layer 25 are provided to shield the above-mentioned large angle light, so as to avoid the large angle light from entering the adjacent green quantum dot unit 231G or the light transmission layer 232, thereby avoiding the optical crosstalk problem caused by the light leakage between the adjacent pixels.

[0057] Optionally, the first light shielding layer 15 and the second light shielding layer 25 can be made of black light absorbing material, and the two can be made of the same material or different materials, and the embodiment of the present application does not make any limitation in this regard.

[0058] Specifically, in the top view, the first light shielding layer 15 is a grid structure, and the second light shielding layer 25 is also a grid structure, the first light shielding layer 15 surrounds the first encapsulation unit 141, and the second light shielding layer 25 surrounds the second encapsulation unit 241.

[0059] Specifically, the first light shielding opening 151 is in communication with the first pixel opening 121, and the second light shielding opening 251 is in communication with the second pixel opening 221.

[0060] Specifically, the orthographic projection of the first light shielding opening 151 on the first substrate 11 covers the orthographic projection of the first pixel opening 121 on the first substrate 11, so as to avoid the first light shielding layer 15 from affecting the normal light emission of the light emitting unit 131. Similarly, the orthographic projection of the second light shielding opening 251 on the second substrate 21 covers the orthographic projection of the second pixel opening 221 on the second substrate 21, so as to avoid the second light shielding layer 25 from shielding the light normally entering the corresponding quantum dot unit 231.

[0061] Specifically, the display panel further comprises a transparent adhesive layer 3, which is arranged between the first substrate 1 and the second substrate 2, and is a double-sided adhesive tape for bonding the first substrate 1 and the second substrate 2. After the first substrate 1 and the second substrate 2 are respectively prepared, the first substrate 1 and the second substrate 2 are combined through the transparent adhesive layer 3 to form the display panel. It should be noted that the film thickness of the transparent adhesive layer 3 is relatively thin, and the probability of light leakage between adjacent pixels is relatively small and can be ignored.

[0062] In the embodiment, the side surface of the first light shielding layer 15 close to the second substrate 2 is a first surface, and the side surface of the second light shielding layer 25 close to the first substrate 1 is a second surface. There is a gap between the first surface and the second surface, and the transparent adhesive layer 3 is located in the gap between the first light shielding layer 15 and the second light shielding layer 25 and between the first encapsulation unit 141 and the second encapsulation unit 241.

[0063] Specifically, the side surface of the first encapsulation unit 141 close to the second substrate 2 is a third surface, and the side surface of the second encapsulation unit 241 close to the first substrate 1 is a fourth surface. In the embodiment, in order to make the surface of the transparent adhesive layer 3 flat, the first surface is flush with the third surface, and the second surface is flush with the fourth surface.

[0064] It should be noted that in the embodiment, the first encapsulation layer 14 can be prepared before the first light shielding layer 15, and the second encapsulation layer 24 can be prepared before the second light shielding layer 25. For example, the first substrate 1 is taken as an example. A layer of encapsulation material is formed on the whole surface by deposition, sputtering or coating process, and a mask is used to pattern the encapsulation material layer to form a plurality of first encapsulation units 141. Then, a light shielding material layer is formed on the whole surface of the first pixel definition layer 12 and the first encapsulation unit 141, and a mask is used to pattern the light shielding material layer to remove the light shielding material layer above the first encapsulation unit 141 and retain the light shielding material layer between adjacent two first encapsulation units 141.

[0065] Of course, a light shielding material layer can also be formed on the whole surface by deposition, sputtering or coating process, and a mask is used to pattern the light shielding material layer to form a plurality of first light shielding openings 151. Then, a layer of encapsulation material is formed on the whole surface of the first light shielding layer 15 and the light emitting device layer 13, and a mask is used to pattern the encapsulation material layer to form the first encapsulation unit 141 in the first light shielding opening 151.

[0066] Optionally, in the embodiment, a dry etching process can be used to etch the encapsulation material layer.

[0067] It should be noted that the preparation steps of the second encapsulation layer 24 and the second light shielding layer 25 are similar to those of the first encapsulation layer 14 and the first light shielding layer 15, and the above description of the preparation steps of the first encapsulation layer 14 and the first light shielding layer 15 can be referred to for details.

[0068] Please refer to Figure 2 , Figure 2 and Figure 1 The difference between the first light shielding layer 15 and the second light shielding layer 25 is that the side surface of the first light shielding layer 15 close to the second substrate 2 is the first surface, and the side surface of the second light shielding layer 25 close to the first substrate 1 is the second surface; wherein the first surface is attached to the second surface.

[0069] It can be understood that there is no gap between the first light shielding layer 15 and the second light shielding layer 25 in the embodiment, and the transparent adhesive layer 3 is only located between the first encapsulation unit 141 and the second encapsulation unit 241, so that the first light shielding layer 15 and the second light shielding layer 25 can confine the light emitted by the light emitting unit 131 in the corresponding sub-pixel, which is beneficial to further reduce the probability of optical crosstalk caused by light leakage between adjacent pixels.

[0070] In the embodiment, the first surface is located on the side of the third surface close to the second substrate 2, and the second surface is located on the side of the fourth surface close to the first substrate 1, that is, in the thickness direction of the display panel, the size of the first light shielding layer 15 is greater than the size of the first encapsulation unit 141, and the size of the second light shielding layer 25 is greater than the size of the second encapsulation unit 241, and there is a gap between the first encapsulation unit 141 and the second encapsulation unit 241 for setting the transparent adhesive layer 3 to realize the attachment of the first substrate 1 and the second substrate 2.

[0071] Please refer to Figure 3 , Figure 3 and Figure 1 The difference between the first light shielding layer 15 and the second light shielding layer 25 is that the first light shielding layer 15 is integrally formed with the first pixel definition layer 12, and / or the second light shielding layer 25 is integrally formed with the second pixel definition layer 22. That is, in the embodiment, the first light shielding layer 15 and the first pixel definition layer 12 are prepared by one photomask process, and / or the second light shielding layer 25 and the second pixel definition layer 22 are prepared by one photomask process, which is beneficial to reduce the process and reduce the production cost.

[0072] Specifically, still taking the first substrate 1 as an example, after the first pixel definition layer 12 and the first light shielding layer 15 are formed, the light emitting unit 131 is formed in the first pixel opening 121 and the first encapsulating unit 141 is formed in the first light shielding opening 151 by inkjet printing or yellow light process.

[0073] Please refer to Figure 4 , Figure 4 and Figure 2 The difference between the first light shielding layer 15 and the second light shielding layer 25 is that the first light shielding layer 15 and the second light shielding layer 25 are integrally formed, that is, the first light shielding layer 15 and the second light shielding layer 25 are prepared by one mask process, which is beneficial to save process and reduce cost. Specifically, the first light shielding layer 15 and the second light shielding layer 25 can be formed at the same time when the first substrate 1 is prepared, and the second light shielding layer 25 does not need to be formed again when the second substrate 2 is prepared. Or, the first light shielding layer 15 and the second light shielding layer 25 can be formed at the same time when the second substrate 2 is prepared, and the first light shielding layer 15 does not need to be formed again when the first substrate 1 is prepared.

[0074] Of course, the first light shielding layer 15 and the second light shielding layer 25 can be integrally formed with the first pixel definition layer 12, or the first light shielding layer 15 and the second light shielding layer 25 can be integrally formed with the second pixel definition layer 22, which is beneficial to reduce process and further reduce cost.

[0075] Please refer to Figure 5 , Figure 5 and Figure 1 The difference between the first light shielding layer 15 and the second light shielding layer 25 is that the first light shielding layer 15 and the second light shielding layer 25 are integrally formed, that is, the first light shielding layer 15 and the second light shielding layer 25 are prepared by one mask process, which is beneficial to save process and reduce cost. Specifically, the first light shielding layer 15 and the second light shielding layer 25 can be formed at the same time when the first substrate 1 is prepared, and the second light shielding layer 25 does not need to be formed again when the second substrate 2 is prepared. Or, the first light shielding layer 15 and the second light shielding layer 25 can be formed at the same time when the second substrate 2 is prepared, and the first light shielding layer 15 does not need to be formed again when the first substrate 1 is prepared.

[0074] Of course, the first light shielding layer 15 and the second light shielding layer 25 can be integrally formed with the first pixel definition layer 12, or the first light shielding layer 15 and the second light shielding layer 25 can be integrally formed with the second pixel definition layer 22, which is beneficial to reduce process and further reduce cost.

[0075] Please refer to Figure 5 , Figure 5 and Figure 1 The difference between the first light shielding layer 15 and the second light shielding layer 25 is that the first light shielding layer 15 and the second light shielding layer 25 are integrally formed, that is, the first light shielding layer 15 and the second light shielding layer 25 are prepared by one mask process, which is beneficial to save process and reduce cost. Specifically, the first light shielding layer 15 and the second light shielding layer 25 can be formed at the same time when the first substrate 1 is prepared, and the second light shielding layer 25 does not need to be formed again when the second substrate 2 is prepared. Or, the first light shielding layer 15 and the second light shielding layer 25 can be formed at the same time when the second substrate 2 is prepared, and the first light shielding layer 15 does not need to be formed again when the first substrate 1 is prepared.

[0076] Correspondingly, the embodiment of the present application also provides a display device. The display device comprises the display panel described above. The display device provided by the embodiment of the present application can be at least one of a smart phone, a tablet computer, a mobile phone, a video phone, an electronic book reader, a portable computer, a netbook, a workstation, a server, a personal digital assistant, a portable media player, an MP3 player, a mobile medical machine, a camera, a game machine, a digital camera, a car navigation device, an electronic billboard, an automatic teller machine, a smart bracelet, a smart watch, a virtual reality device or a wearable device. The above embodiment has described the display panel in detail, and therefore, the display panel is not described in detail in the embodiment of the present application.

[0077] Beneficial effects: in the display panel and the display device provided by the embodiment of the present application, the first packaging layer arranged on the whole surface of the first substrate is patterned to form a plurality of first packaging units arranged at intervals and corresponding to the light emitting units, the second packaging layer arranged on the whole surface of the second substrate is patterned to form a plurality of second packaging units arranged at intervals and corresponding to the quantum dot units; the first light shielding layer is formed on the side of the first pixel definition layer close to the second substrate, the first packaging unit is located in the first light shielding opening of the first light shielding layer, the second light shielding layer is formed on the side of the second pixel definition layer close to the first substrate, and the second packaging unit is located in the second light shielding opening of the second light shielding layer. The first light shielding layer and the second light shielding layer shield the large-angle light emitted from the light emitting unit, prevent the light from entering the quantum dot unit in the adjacent pixel, thereby avoiding the optical crosstalk problem caused by the light leakage between the adjacent pixels, and improving the display effect.

[0078] In the above embodiments, the description of each embodiment focuses on different aspects, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0079] The display panel and the display device provided by the embodiment of the present application are described in detail above, and the principle and the implementation manner of the present application are described by using specific examples in this paper. The above embodiment is only used to help understand the technical scheme and the core idea of the present application; the ordinary skilled in the art should understand that the technical scheme recorded in the above embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the present application.

Claims

1. A display panel, characterized in that: The invention comprises a first substrate and a second substrate arranged opposite to each other, wherein the first substrate comprises: a first substrate; A first pixel definition layer is provided on a side of the first base substrate close to the second substrate and includes a plurality of first pixel openings; a light-emitting device layer, comprising a plurality of light-emitting units, wherein the light-emitting units are located in the first pixel opening; a first encapsulation layer comprising a plurality of first encapsulation units arranged at intervals and corresponding to the light-emitting units, wherein the first encapsulation units cover a side of the light-emitting unit close to the second substrate; and a first light shielding layer, disposed on a side of the first pixel definition layer close to the second substrate, the first light shielding layer comprising a plurality of first light shielding openings, the first packaging unit being located within the first light shielding openings; The second substrate includes: a second substrate; A second pixel definition layer is provided on a side of the second base substrate close to the first substrate and includes a plurality of second pixel openings provided corresponding to the light emitting units; a quantum dot layer, comprising a plurality of quantum dot units, wherein the quantum dot units are located in the second pixel opening; a second encapsulation layer, comprising a plurality of second encapsulation units arranged corresponding to the quantum dot units, wherein the second encapsulation units cover a side of the quantum dot unit close to the second substrate; and The second light shielding layer is arranged on a side of the second pixel definition layer close to the first substrate. The second light shielding layer includes a plurality of second light shielding openings. The second packaging unit is located in the second light shielding openings.

2. The display panel according to claim 1, wherein: A surface of the first light-shielding layer close to the second substrate is a first surface, and a surface of the second light-shielding layer close to the first substrate is a second surface; wherein the first surface is in contact with the second surface.

3. The display panel according to claim 2, wherein: A side surface of the first packaging unit close to the second substrate is a third surface, and a side surface of the second packaging unit close to the first substrate is a fourth surface; wherein, the first surface is located on a side of the third surface close to the second substrate, and the second surface is located on a side of the fourth surface close to the first substrate.

4. The display panel according to claim 1, wherein: The first light shielding layer and the first pixel definition layer are integrally formed, and / or the second light shielding layer and the second pixel definition layer are integrally formed.

5. The display panel according to claim 1, wherein: The first light-shielding layer and the second light-shielding layer are integrally formed.

6. The display panel according to claim 1, wherein: The orthographic projection of the first light shielding opening on the first base substrate covers the orthographic projection of the first pixel opening on the first base substrate, and the orthographic projection of the second light shielding opening on the second base substrate covers the orthographic projection of the second pixel opening on the second base substrate.

7. The display panel according to claim 6, wherein: The orthographic projection of the first light shielding opening on the first base substrate is located within the orthographic projection of the second light shielding opening on the first base substrate.

8. The display panel according to claim 1, wherein: The light-emitting unit is a blue light-emitting unit, and the quantum dot unit includes a red quantum dot unit, a blue quantum dot unit and a light-transmitting layer; The second substrate also includes a color filter layer, which is arranged on a side of the second base substrate close to the first substrate and includes a plurality of color resists arranged corresponding to the light-emitting units. The plurality of color resists include red color resist, green color resist and blue color resist. The red color resist is arranged corresponding to the red quantum dot unit, the green color resist is arranged corresponding to the green quantum dot unit, and the blue color resist is arranged corresponding to the light-transmitting layer.

9. The display panel according to claim 1, wherein: The display panel further includes a transparent adhesive layer disposed between the first substrate and the second substrate.

10. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 9.

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