Display panel and display device

Abstract

The invention provides a display panel and a display device, the display panel comprises an array substrate, a plurality of light emitting units and a plurality of blocking pieces, the light emitting units and the blocking pieces are arranged on the array substrate, the light emitting units are arranged at intervals, and a light shielding layer is arranged between every two adjacent light emitting units; the light emitting units and the blocking pieces are arranged in a one-to-one correspondence mode, the blocking pieces are located on the sides, away from the array substrate, of the light emitting units and the light shielding layer, and the orthographic projection of the blocking pieces on the array substrate covers the orthographic projection of the light emitting units on the array substrate and part of orthographic projection of the light shielding layer on the array substrate. The blocking piece can prolong the length of a path through which the uncured light shielding layer climbs to one side of the light-emitting surface of the light-emitting unit, so that the shielding of the light shielding layer on the light-emitting surface of the light-emitting unit can be relieved, and the light-emitting efficiency of the light-emitting unit is improved. Therefore, according to the display panel and the display device, dark spots on the display panel can be reduced or avoided, and therefore the display effect of the display panel and the display effect of the display device are improved.

Description

Technical Field

[0001] This application relates to the field of display technologies, and particularly to a display panel and a display device. Background Art

[0002] A micro light emitting diode (Micro LED) display integrates LED chips with a size below one hundred micrometers on a substrate as display pixels. Micro LED has the advantages of high stability, long lifespan, low power consumption, fast response speed, etc.

[0003] In related technologies, a display panel may include an array substrate and a plurality of Micro LEDs located on the array substrate. The plurality of Micro LEDs are all electrically connected to the array substrate. An ink layer is provided between every two adjacent Micro LEDs, and the ink layer can prevent color mixing between adjacent Micro LEDs.

[0004] However, the above display panel is prone to dark spots, thus affecting the display effect of the display panel and the display device. Summary of the Invention

[0005] In view of the above at least one technical problem, embodiments of this application provide a display panel and a display device, which can reduce or avoid dark spots on the display panel, thereby improving the display effect of the display panel and the display device.

[0006] Embodiments of this application provide the following technical solutions:

[0007] A first aspect of embodiments of this application provides a display panel, including: an array substrate, a plurality of light emitting units and a plurality of blocking members disposed on the array substrate. The plurality of light emitting units are spaced apart, and a light shielding layer is provided between every two adjacent light emitting units; the plurality of light emitting units and the plurality of blocking members are provided in one-to-one correspondence, the blocking member is located on the side of the light emitting unit and the light shielding layer away from the array substrate, and the orthographic projection of the blocking member on the array substrate covers the orthographic projection of the light emitting unit on the array substrate and a partial orthographic projection of the light shielding layer on the array substrate.

[0008] The display panel provided by the embodiment of the present application may include an array substrate, a plurality of light-emitting units and a plurality of blocking members disposed on the array substrate. The plurality of light-emitting units are arranged at intervals, and a light-shielding layer is disposed between every two adjacent light-emitting units. The plurality of light-emitting units and the plurality of blocking members are arranged in one-to-one correspondence. The blocking member is located on the side of the corresponding light-emitting unit and the light-shielding layer facing away from the array substrate, and the orthographic projection of the blocking member on the array substrate covers the orthographic projection of the light-emitting unit on the array substrate and a partial orthographic projection of the light-shielding layer on the array substrate. Among them, the light-shielding layer may be formed after curing of the initial light-shielding layer, that is, the uncured light-shielding layer, and the initial light-shielding layer may be liquid or semi-solid. With such an arrangement, the blocking member can extend the path length that the uncured light-shielding layer needs to climb to the side of the light-emitting surface of the light-emitting unit, thereby alleviating the shielding of the light-emitting surface of the light-emitting unit by the light-shielding layer, improving the light-emitting efficiency of the light-emitting unit, reducing or avoiding dark spots on the display panel, and thus improving the display effect of the display panel and the display device.

[0009] In a possible implementation manner, the light-emitting unit includes a light-emitting device and a light-transmitting member, and the light-transmitting member is disposed around the outer periphery of the light-emitting device;

[0010] It can be achieved that along the thickness direction of the array substrate, there is a distance between the light-shielding layer and the blocking member;

[0011] It can be achieved that the side of the light-transmitting member facing the blocking member is connected to the blocking member;

[0012] It can be achieved that the surface of the light-emitting device facing away from the array substrate is flush with the surface of the light-transmitting member facing away from the array substrate.

[0013] In this way, the side wall of the light-emitting device and the light-shielding layer are separated by the light-transmitting member, avoiding the light-shielding layer from blocking the side wall of the light-emitting device and the light emitted from the side of the light-emitting device.

[0014] In a possible implementation manner, the light-transmitting member is also located between the light-emitting device and the array substrate.

[0015] In this way, the protection of the light-emitting device by the light-transmitting member can be improved.

[0016] In a possible implementation manner, it further includes a plurality of reflecting members, and the plurality of reflecting members are arranged in one-to-one correspondence with the plurality of light-emitting units, and the reflecting members are located on the side walls of the light-emitting units;

[0017] It can be achieved that the reflecting member is also located on the surface of the light-emitting unit facing the array substrate;

[0018] It can be achieved that the reflecting member is also located on the surface of the blocking member facing the array substrate.

[0019] In this way, the light-emitting efficiency of the light-emitting device can be improved by the reflecting member.

[0020] In a possible implementation, it includes a first conductive member and a second conductive member. Both the first conductive member and the second conductive member are located on the surface of the array substrate facing the light-emitting unit. The first electrode of the light-emitting device is electrically connected to the first conductive member, and the second electrode of the light-emitting device is electrically connected to the second conductive member;

[0021] It can be achieved that a light-shielding layer is provided between the first conductive member and the second conductive member;

[0022] It can be achieved that the light-shielding layer includes an ink layer.

[0023] In a possible implementation, the material of the reflector includes a conductive material. The reflector includes a first reflector and a second reflector. Both the first reflector and the second reflector are located on the surface of the light-emitting unit facing the array substrate. The first electrode and the first conductive member are electrically connected through the first reflector, and the second electrode and the second conductive member are electrically connected through the second reflector;

[0024] It can be achieved that the first reflector is located on the sidewall of the light-emitting unit, and the first conductive member is provided on the side of the first reflector on the sidewall of the light-emitting unit facing away from the light-emitting unit;

[0025] It can be achieved that the second reflector is located on the sidewall of the light-emitting unit, and the second conductive member is provided on the side of the second reflector on the sidewall of the light-emitting unit facing away from the light-emitting unit;

[0026] It can be achieved that the orthographic projection of the first reflector on the sidewall of the light-emitting unit on the array substrate partially coincides with the first conductive member;

[0027] It can be achieved that the orthographic projection of the second reflector on the sidewall of the light-emitting unit on the array substrate partially coincides with the second conductive member;

[0028] It can be achieved that at least one of the first conductive member and the second conductive member includes a first sub-conductive member and a second sub-conductive member. The first sub-conductive member is located on the surface of the array substrate facing the light-emitting unit, and the first sub-conductive member and the light-emitting unit are electrically connected through the second sub-conductive member;

[0029] It can be achieved that the first conductive member includes a first sub-conductive member and a second sub-conductive member, and the orthographic projection of the first reflector on the sidewall of the light-emitting unit on the array substrate partially coincides with the first sub-conductive member of the first conductive member;

[0030] It can be achieved that the second conductive member includes a first sub-conductive member and a second sub-conductive member, and the orthographic projection of the second reflector on the sidewall of the light-emitting unit on the array substrate partially coincides with the first sub-conductive member of the second conductive member.

[0031] In this way, the reflector can not only improve the light extraction effect of the light-emitting unit by reflecting light, but also be used for electrically connecting with the first conductive member and the second conductive member to improve the connection stability between the light-emitting unit and the array substrate and the success rate of transfer.

[0032] In a possible implementation manner, one side of the light-transmitting member facing the array substrate on the side of the light-emitting device has a first through hole and a second through hole. The first through hole exposes the first electrode, and the second through hole exposes the second electrode. The first conductive member is located in the first through hole, and the second conductive member is located in the second through hole.

[0033] It can be achieved that the first reflector is located in the first through hole, and the second reflector is located in the second through hole.

[0034] In a possible implementation manner, the side wall of the light-emitting unit includes a first end and a second end in the thickness direction of the array substrate. The first end is close to the blocking member, and the second end is close to the array substrate. The first end is inclined in a direction away from the center of the light-emitting unit.

[0035] In this way, the uncured light-shielding layer can be prevented from climbing along the side wall of the light-emitting unit, thereby alleviating the shielding of the light-emitting surface of the light-emitting unit by the light-shielding layer to improve the display effect of the display panel and the display device.

[0036] In a possible implementation manner, the blocking member includes a substrate layer and an adhesive layer. The substrate layer and the adhesive layer are stacked along the thickness direction of the array substrate, and the substrate layer and the light-emitting unit are connected by the adhesive layer.

[0037] It can be achieved that the side walls of the substrate layer and the adhesive layer are flush.

[0038] It can be achieved that the refractive index of the substrate layer is greater than the refractive index of the adhesive layer.

[0039] In this way, the connection manner between the blocking member and the light-emitting unit is relatively simple.

[0040] The second aspect of the embodiments of the present application provides a display device, including: the display panel in the first aspect above.

[0041] The display device provided by the embodiment of the present application may include a display panel. The display panel may include an array substrate, a plurality of light-emitting units and a plurality of blocking members disposed on the array substrate. The plurality of light-emitting units are arranged at intervals, and a light-shielding layer is disposed between every two adjacent light-emitting units. The plurality of light-emitting units and the plurality of blocking members are arranged in one-to-one correspondence. The blocking member is located on the side of the corresponding light-emitting unit and the light-shielding layer away from the array substrate, and the orthographic projection of the blocking member on the array substrate covers the orthographic projection of the light-emitting unit on the array substrate and a partial orthographic projection of the light-shielding layer on the array substrate. Among them, the light-shielding layer may be formed after curing of an initial light-shielding layer, that is, an uncured light-shielding layer, and the initial light-shielding layer may be liquid or semi-solid. With such an arrangement, the blocking member can extend the path length that the uncured light-shielding layer needs to pass through to climb to the light-emitting surface side of the light-emitting unit, thereby alleviating the shielding of the light-emitting surface of the light-emitting unit by the light-shielding layer, improving the light-emitting efficiency of the light-emitting unit, reducing or avoiding dark spots on the display panel, and thus improving the display effect of the display panel and the display device.

[0042] The structure of the present application and its other invention purposes and beneficial effects will become more obvious and understandable through the description of the preferred embodiments in conjunction with the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0044] Figure 1 It is a partial cross-sectional view of the display panel provided by the embodiment of the present application;

[0045] Figure 2 It is a cross-sectional view of the display panel corresponding to one light-emitting unit provided by the embodiment of the present application;

[0046] Figure 3 It is another cross-sectional view of the display panel corresponding to one light-emitting unit provided by the embodiment of the present application;

[0047] Figure 4 It is a schematic structural diagram of the light-emitting unit, the reflecting member and the blocking member provided by the embodiment of the present application;

[0048] Figure 5 It is a schematic structural diagram of repairing the light-emitting unit provided by the embodiment of the present application.

[0049] DESCRIPTION OF REFERENCE NUMERALS:

[0050] 100: Display panel; 110: Array substrate;

[0051] 120: Light-emitting unit; 120a: First end;

[0052] 120b: Second end; 121: Light-transmitting member;

[0053] 1211: First through-hole; 1212: Second through-hole;

[0054] 1213: Protrusion structure; 122: Light-emitting device;

[0055] 1221: First electrode; 1222: Second electrode;

[0056] 130: Blocking member; 131: Substrate layer;

[0057] 132: Adhesive layer; 133: Blocking portion;

[0058] 134: Covering portion; 140: Light-shielding layer;

[0059] 150: Reflective member; 151: First reflective member;

[0060] 152: Second reflective member; 161: First conductive member;

[0061] 162: Second conductive member; 163: Connecting material;

[0062] 164: Second unbonded conductive member; 170: Repair tool. Detailed implementation manners

[0063] In related technologies, a display panel may include an array substrate and a plurality of Micro LEDs located on the array substrate. The plurality of Micro LEDs are all electrically connected to the array substrate. An ink layer is provided between every two adjacent Micro LEDs. The ink layer can prevent color mixing between adjacent Micro LEDs. Among them, the surface of the Micro LED facing away from the array substrate can form the light-emitting surface of the Micro LED. During the formation of the ink layer, a liquid (or semi-solid) initial ink layer can be coated between every two adjacent Micro LEDs, and then the initial ink layer is cured to form the ink layer.

[0064] However, due to the certain fluidity of the initial ink layer, the initial ink layer easily climbs along the side wall of the Micro LED to the light-emitting surface of the Micro LED, thereby blocking the light-emitting surface of the Micro LED, reducing the light-emitting efficiency of the Micro LED, making it easy to form dark spots on the display panel, and thus affecting the display effects of the display panel and the display device.

[0065] Based on at least one of the above technical problems, an embodiment of the present application provides a display panel and a display device. The display panel may include an array substrate, and a plurality of light-emitting units and a plurality of blocking members disposed on the array substrate. The plurality of light-emitting units are spaced apart, and a light-shielding layer is disposed between every two adjacent light-emitting units. The plurality of light-emitting units and the plurality of blocking members are arranged in one-to-one correspondence. The blocking member is located on the side of the corresponding light-emitting unit and the light-shielding layer facing away from the array substrate, and the orthographic projection of the blocking member on the array substrate covers the orthographic projection of the light-emitting unit on the array substrate and a partial orthographic projection of the light-shielding layer on the array substrate. Among them, the light-shielding layer may be formed after curing of an initial light-shielding layer, that is, an uncured light-shielding layer, and the initial light-shielding layer may be liquid or semi-solid. With such a setting, the blocking member can extend the path length that the uncured light-shielding layer needs to pass through to climb to the light-emitting surface side of the light-emitting unit, thereby alleviating the shielding of the light-emitting surface of the light-emitting unit by the light-shielding layer, improving the light-emitting efficiency of the light-emitting unit, reducing or avoiding dark spots on the display panel, and thus improving the display effect of the display panel and the display device.

[0066] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0067] The following will be combined with Figures 1-5 to illustrate the display device provided by the embodiments of the present application.

[0068] An embodiment of the present application provides a display device, which may be a mobile or fixed terminal such as an electronic paper, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a smart bracelet, a smart watch, a super personal computer, a navigator, etc.

[0069] Exemplarily, referring to Figure 1 , the display device may include a display panel 100, and the display panel 100 may include a light-emitting side and a backlight side that are oppositely arranged in the thickness direction (i.e., Figure 1 the direction Z in Figure 1 ). The light-emitting side may be used for displaying a picture. The backlight side is the side opposite to the light-emitting side along the thickness direction of the display panel 100. The light-emitting side may be Figure 1 the upper side in

[0070] The following will illustrate the display panel 100 provided by the embodiments of the present application.

[0071] The display panel 100 can be a light emitting diode (LED) display panel, a quantum dot light emitting diodes (QLED) display panel, a Mini light emitting diodes (MiniLED) display panel, or a Micro Light Emitting Diode (Micro LED) display panel, etc. In the embodiments of the present application, the display panel 100 is taken as an example of a Micro LED display panel for illustration.

[0072] Exemplarily, referring to Figure 1 , the display panel 100 may include an array substrate 110 and a light emitting layer located on the array substrate 110. The array substrate 110 may include a plurality of driving units. The driving unit may include a thin film transistor (TFT) and a capacitive structure. The light emitting layer may include a plurality of light emitting units 120. One driving unit may be correspondingly electrically connected to at least one light emitting unit 120. The driving unit may be configured to provide a first driving signal for the corresponding light emitting unit 120.

[0073] For example, a plurality of driving units may be arranged in an array. A plurality of light emitting units 120 may be spaced apart on the array substrate 110, and the plurality of light emitting units 120 may be arranged in an array. Among them, the plurality of light emitting units 120 may include, but are not limited to, red light emitting units, green light emitting units, and blue light emitting units. In some other examples, the plurality of light emitting units 120 may further include white light emitting units.

[0074] Exemplarily, referring to Figure 1 , the display panel 100 may include a first conductive member 161 and a second conductive member 162. Both the first conductive member 161 and the second conductive member 162 may be located on the surface of the array substrate 110 facing the light emitting unit 120, and both the first conductive member 161 and the second conductive member 162 may be electrically connected to the light emitting unit 120. The first conductive member 161 may be electrically connected to the driving unit, and the driving unit provides a first driving signal to the light emitting unit 120 through the first conductive member 161. For example, the first driving signal may be a high level signal or other signals. The second conductive member 162 may be configured to provide a second driving signal to the light emitting unit 120. For example, the second conductive member 162 may include a low level signal line, and the second driving signal may be a low level signal.

[0075] Exemplarily, referring to Figure 1, a light-shielding layer 140 may be disposed between every two adjacent light-emitting units 120. The light-shielding layer 140 can be used to prevent color mixing between two adjacent light-emitting units 120. In addition, the light-shielding layer 140 is also beneficial to reducing the reflection of the display panel 100, thereby improving the display effect of the display panel 100. For example, the light-shielding layer 140 may be formed after curing an initial light-shielding layer. The initial light-shielding layer is the uncured light-shielding layer, and the initial light-shielding layer may be liquid or semi-solid, so that the initial light-shielding layer has a certain fluidity. The initial light-shielding layer can be disposed between two adjacent light-emitting units 120 by means of coating, inkjet printing, etc. For example, the light-shielding layer 140 may include an ink layer.

[0076] The barrier member 130 provided in the embodiments of the present application will be described below.

[0077] Referring to Figure 1 , the display panel 100 may include a plurality of barrier members 130, and the plurality of light-emitting units 120 and the plurality of barrier members 130 may be provided in one-to-one correspondence. The barrier member 130 may be located on the side of the corresponding light-emitting unit 120 and the light-shielding layer 140 facing away from the array substrate 110. The orthographic projection of the barrier member 130 on the array substrate 110 may cover the orthographic projection of the corresponding light-emitting unit 120 on the array substrate 110 and a partial orthographic projection of the light-shielding layer 140 on the array substrate 110. Equivalently, the barrier member 130 includes a covering portion 134 and a barrier portion 133 located on the outer periphery of the covering portion 134. The orthographic projection of the covering portion 134 on the array substrate 110 coincides with the orthographic projection of the light-emitting unit 120 on the array substrate 110, and the orthographic projection of the barrier portion 133 on the array substrate 110 partially coincides with the orthographic projection of the light-shielding layer 140 on the array substrate 110. With such a setting, the barrier portion 133 can extend the path length that the initial light-shielding layer needs to pass through to climb to the light-emitting surface side of the light-emitting unit 120, thereby alleviating the shielding of the light-emitting surface of the light-emitting unit 120 by the light-shielding layer 140, improving the light-emitting efficiency of the light-emitting unit 120, reducing or avoiding dark spots on the display panel 100, and thus improving the display effect of the display panel 100 and the display device. Among them, the light-emitting surface of the light-emitting unit 120 may be the surface of the light-emitting unit 120 facing away from the array substrate 110, that is, the surface of the light-emitting unit 120 facing the light-emitting side.

[0078] Exemplarily, the light-shielding layer 140 may be in contact with the barrier member 130, as long as the surface of the light-shielding layer 140 facing away from the array substrate 110 does not contact the barrier member 130. Along the thickness direction of the array substrate 110, the distance between the surface of the light-shielding layer 140 facing away from the array substrate 110 and the array substrate 110 may be less than or equal to the distance between the surface of the barrier member 130 facing away from the array substrate 110 and the array substrate 110. For example, the light-shielding layer 140 may be in contact with the surface of the barrier member 130 close to the array substrate 110. The initial light-shielding layer needs to pass through the side wall of the blocking portion 133 and the surface of the blocking portion 133 facing away from the array substrate 110 before it can climb to the side of the light-emitting surface of the light-emitting unit 120. Compared with the related art, where the initial light-shielding layer directly climbs from the side wall of the light-emitting unit to the light-emitting surface of the light-emitting unit, the blocking portion 133 can extend the path length required for the initial light-shielding layer to climb to the side of the light-emitting surface of the light-emitting unit 120, thereby alleviating the shielding of the light-emitting surface of the light-emitting unit 120 by the light-shielding layer 140 and improving the display effect of the display panel 100 and the display device. Alternatively, the light-shielding layer 140 may be in contact with the side wall of the barrier member 130. The initial light-shielding layer needs to pass through the surface of the blocking portion 133 facing away from the array substrate 110 before it can climb to the side of the light-emitting surface of the light-emitting unit 120, thereby alleviating the shielding of the light-emitting surface of the light-emitting unit 120 by the light-shielding layer 140 and improving the display effect of the display panel 100 and the display device. The principle has been described and will not be elaborated further.

[0079] Exemplarily, refer to Figure 1 and Figure 2 , along the thickness direction of the array substrate 110, there may be a gap between the light-shielding layer 140 and the barrier member 130. The initial light-shielding layer needs to pass through a part of the side wall of the light-emitting unit 120, the surface of the blocking portion 133 facing the array substrate 110, the side wall of the blocking portion 133, and the surface of the blocking portion 133 facing away from the array substrate 110 before it can climb to the side of the light-emitting surface of the light-emitting unit 120. The blocking portion 133 can further extend the path length required for the initial light-shielding layer to climb to the side of the light-emitting surface of the light-emitting unit 120, and make the path (i.e., Figure 2 the arrow A therein) more tortuous, and the surface of the blocking portion 133 facing the array substrate 110 has a good blocking effect on the initial light-shielding layer, and can effectively block the initial light-shielding layer, thereby avoiding the shielding of the light-emitting surface of the light-emitting unit 120 by the light-shielding layer 140, improving the light-emitting efficiency of the light-emitting unit 120, and thus improving the display effect of the display panel 100 and the display device.

[0080] Exemplarily, refer to Figure 3, the barrier member 130 may include a base material layer 131 and an adhesive layer 132. The base material layer 131 and the adhesive layer 132 are stacked along the thickness direction of the array substrate 110, and the base material layer 131 and the light-emitting unit 120 may be connected through the adhesive layer 132. For example, the process of manufacturing the light-emitting unit 120 may be as follows: First, an initial base material layer and an initial adhesive layer stacked are provided. Then, a plurality of light-emitting units 120 are formed at intervals on the side of the initial adhesive layer facing away from the initial base material layer. Then, the initial adhesive layer and the initial base material layer are cut along the thickness direction of the initial adhesive layer to divide the initial base material layer and the initial adhesive layer into a plurality of barrier members 130. The cut initial adhesive layer may form the adhesive layer 132, and the cut initial base material layer may form the base material layer 131. One barrier member 130 is correspondingly arranged with one light-emitting unit 120, and then the light-emitting unit 120 provided with the barrier member 130 is transferred and bonded to the array substrate 110. Among them, the initial base material layer may serve as a carrier structure for manufacturing a plurality of light-emitting units 120, and the initial adhesive layer serves as a fixing structure for the light-emitting unit 120. When transferring the light-emitting unit 120 to the array substrate 110 subsequently, there is no need to remove the initial adhesive layer and the initial base material layer, thereby reducing the transfer difficulty of the light-emitting unit 120 and improving the transfer efficiency. Among them, the side walls of the base material layer 131 and the adhesive layer 132 may be flush, which can reduce the cutting difficulty of the initial adhesive layer and the initial base material layer.

[0081] Exemplarily, the refractive index of the base material layer 131 may be greater than that of the adhesive layer 132. When the light ray G2 ( Figure 3 ) irradiates the interface between the base material layer 131 and the adhesive layer 132, the refraction angle formed by the refracted light ray G3 of the light ray G2 and the normal line of this interface becomes smaller, which is beneficial to improving the brightness of the front view angle of the display panel 100. For example, at least part of the refracted light ray G3 may be perpendicular to the base material layer 131.

[0082] The light-emitting unit 120 provided by the embodiments of the present application will be described below.

[0083] See Figure 3 and Figure 4, the light emitting unit 120 may include a light emitting device 122. The first electrode 1221 and the second electrode 1222 of the light emitting device 122 may both be located on the side of the light emitting device 122 facing the array substrate 110. The first electrode 1221 of the light emitting device 122 may be electrically connected to the first conductive member 161, and the second electrode 1222 of the light emitting device 122 may be electrically connected to the second conductive member 162. For example, a light shielding layer 140 may be provided between the first conductive member 161 and the second conductive member 162, which is beneficial to the electrical insulation between the first conductive member 161 and the second conductive member 162. Among them, the light emitting device 122 may be a Micro LED, the first electrode 1221 of the light emitting device 122 may be an anode, and the second electrode 1222 of the light emitting device 122 may be a cathode.

[0084] See Figure 3 and Figure 4 , the light emitting unit 120 may include a light transmissive member 121. The light transmissive member 121 may be located outside the light emitting device 122 to protect the light emitting device 122. The light transmissive member 121 may include an optically clear adhesive (OCA for short). Exemplarily, the light transmissive member 121 may surround the outer periphery of the light emitting device 122, that is, the light transmissive member 121 may be located on the side wall of the light emitting device 122. By separating the side wall of the light emitting device 122 from the light shielding layer 140 through the light transmissive member 121, it is avoided that the light shielding layer 140 blocks the side wall of the light emitting device 122 and blocks the light emitted from the side of the light emitting device 122, so that the light emitted from the side of the light emitting device 122 can enter the light transmissive member 121, thereby facilitating the utilization of the light emitted from the side of the light emitting device 122 to improve the light extraction efficiency of the light emitting device 122. Exemplarily, the light transmissive member 121 may also be located between the light emitting device 122 and the array substrate 110, so as to improve the protection of the light transmissive member 121 for the light emitting device 122. Exemplarily, a light transmissive member 121 may be provided between the light emitting device 122 and the blocking member 130. Among them, the light transmissive member 121 may be located at least one of the circumferential direction of the light emitting device 122, between the light emitting device 122 and the array substrate 110, and between the light emitting device 122 and the blocking member 130. In the embodiment of the present application, the case where the light transmissive member 121 is located in the circumferential direction of the light emitting device 122 and between the light emitting device 122 and the array substrate 110 is taken as an example for description.

[0085] Exemplarily, the side of the light transmissive member 121 located in the circumferential direction of the light emitting device 122 facing the blocking member 130 may be connected to the blocking member 130, so as to avoid the initial light shielding layer from entering through the gap between the light transmissive member 121 and the blocking member 130 and contacting the light emitting device 122, which is beneficial to improving the light extraction efficiency of the light emitting device 122. In addition, it can also strengthen the protection of the light emitting device 122.

[0086] Exemplarily, the surface of the light-emitting device 122 facing away from the array substrate 110 may be flush with the surface of the light-transmissive member 121 facing away from the array substrate 110, so that the light-emitting device 122, the light-transmissive member 121, and the blocking member 130 can be better fitted, and the connection stability between the light-emitting unit 120 and the blocking member 130 can be improved.

[0087] Exemplarily, referring to Figure 1 , the sidewall of the light-emitting unit 120 may include a first end 120a and a second end 120b in the thickness direction of the array substrate 110. The first end 120a may be disposed close to the blocking member 130, and the second end 120b may be disposed close to the array substrate 110. The first end 120a may be inclined in a direction away from the center of the light-emitting unit 120, that is, the sidewall of the light-emitting unit 120 is inclined, which can prevent the initial light-shielding layer from climbing along the sidewall of the light-emitting unit 120, thereby alleviating the shielding of the light-emitting surface of the light-emitting unit 120 by the light-shielding layer 140, so as to improve the display effect of the display panel 100 and the display device.

[0088] The reflector 150 provided in the embodiments of the present application will be described below.

[0089] Referring to Figure 3 , the display panel 100 may further include a plurality of reflectors 150, and the plurality of reflectors 150 and the plurality of light-emitting units 120 may be provided in one-to-one correspondence. The reflector 150 may be located on the sidewall of the corresponding light-emitting unit 120. Exemplarily, the reflector 150 may be located on the sidewall of the light-transmissive member 121, so that the light G1 emitted from the side of the light-emitting device 122 can irradiate the reflector 150, and after passing through the reflector 150, a reflected light ray G2 is formed, and at least a part of the reflected light ray G2 can be emitted from the light-emitting side of the display panel 100, thereby improving the light-emitting efficiency of the light-emitting device 122, which is beneficial to reducing the power consumption of the display panel 100 and extending the service life of the display panel 100 and the display device. Exemplarily, the reflector 150 may also be located on the surface of the light-emitting unit 120 facing the array substrate 110, so as to reflect the light emitted by the light-emitting device 122 toward the array substrate 110, and the light-emitting efficiency of the light-emitting device 122 can be improved. Exemplarily, the reflector 150 may also be located on the surface of the blocking portion 133 ( Figure 2 ) facing the array substrate 110. Among them, the reflector 150 may be located on at least one of the sidewall of the light-transmissive member 121, the surface of the light-emitting unit 120 facing the array substrate 110, and the surface of the blocking portion 133 facing the array substrate 110. The larger the area of the reflector 150, the higher the connection stability between it and other structural layers.

[0090] In an embodiment where the reflecting member 150 is provided and the sidewall of the light-emitting unit 120 is inclined, the reflecting member 150 on the sidewall of the light-emitting unit 120 may also be inclined, and the inclination direction of the reflecting member 150 is the same as the inclination direction of the sidewall of the light-emitting unit 120. The end of the reflecting member 150 corresponding to the first end 120a may be inclined away from the center of the light-emitting unit 120. The reflecting member 150 on the sidewall of the light-emitting unit 120 can prevent the initial light-shielding layer from climbing along this part of the reflecting member 150, thereby alleviating the shielding of the light-emitting surface of the light-emitting unit 120 by the light-shielding layer 140 and improving the display effect of the display panel 100 and the display device. In addition, the inclined arrangement of the reflecting member 150 on the sidewall of the light-emitting unit 120 can also make more light irradiated on the reflecting member 150 emit toward the light-emitting side of the display panel 100, thereby better improving the light-emitting efficiency of the light-emitting unit 120.

[0091] Exemplarily, referring to Figure 3 and Figure 4 , the material of the reflecting member 150 may include a conductive material. For example, the conductive material may include metal materials such as gold and tin. The reflecting member 150 may include a first reflecting member 151 and a second reflecting member 152. Both the first reflecting member 151 and the second reflecting member 152 may be located on the surface of the light-emitting unit 120 facing the array substrate 110. The first electrode 1221 and the first conductive member 161 may be electrically connected through the first reflecting member 151, and the second electrode 1222 and the second conductive member 162 may be electrically connected through the second reflecting member 152.

[0092] For example, the area of the first reflecting member 151 on the side of the light-emitting unit 120 facing the array substrate 110 may be larger than the area of the surface of the first electrode 1221 facing the array substrate 110, which can reduce the alignment difficulty between the first reflecting member 151 and the first conductive member 161, improve the success rate of electrical connection between the first electrode 1221 and the first conductive member 161 during the transfer process of the light-emitting unit 120, and is beneficial to improving the transfer efficiency. The area of the second reflecting member 152 on the side of the light-emitting unit 120 facing the array substrate 110 may be larger than the area of the surface of the second electrode 1222 facing the array substrate 110, which can reduce the alignment difficulty between the second reflecting member 152 and the second conductive member 162, improve the success rate of electrical connection between the second electrode 1222 and the second conductive member 162 during the transfer process of the light-emitting unit 120, and is beneficial to improving the transfer efficiency.

[0093] It should be noted that in some related technologies, a reflective member may not be provided. Taking the repair of the first electrode as an example, when the first electrode and the first conductive member are not successfully bonded, for example, there is a false solder joint or the connection is broken after welding, it is necessary to pick up the light-emitting device, then apply solder or conductive adhesive on the first conductive member, and then align the first electrode of the light-emitting device with the first conductive member, and then place the light-emitting device on the array substrate and weld the first electrode and the first conductive member to repair the first electrode and the first conductive member. Therefore, it is difficult to achieve in-situ direct repair, resulting in a high repair cost and a low repair efficiency. In addition, picking up the light-emitting device will affect the alignment accuracy between the first electrode and the first conductive member, resulting in a reduced reliability after repair.

[0094] Exemplarily, referring to Figure 3 , the first reflective member 151 may also be located on the sidewall of the light-emitting unit 120. For example, a first conductive member 161 may be provided on the side of the first reflective member 151 located on the sidewall of the light-emitting unit 120 facing away from the light-emitting unit 120. The first conductive member 161 may be electrically connected to the first reflective members 151 on the sidewall and the bottom wall of the light-emitting unit 120, which can increase the contact area between the first conductive member 161 and the first reflective member 151, so as to reduce the contact resistance between the first conductive member 161 and the first reflective member 151 and improve the stability of the electrical connection between the first conductive member 161 and the first reflective member 151. In addition, the second reflective member 152 may be located on the sidewall of the light-emitting unit 120. For example, a second conductive member 162 is provided on the side of the second reflective member 152 located on the sidewall of the light-emitting unit 120 facing away from the light-emitting unit 120, so as to increase the contact area between the second conductive member 162 and the second reflective member 152. The principle is similar to that of the first reflective member 151 and the first conductive member 161 and will not be elaborated here.

[0095] Exemplarily, the orthographic projection of the first reflective member 151 located on the sidewall of the light-emitting unit 120 on the array substrate 110 may partially overlap with the first conductive member 161. If the first conductive member 161 and the first reflective member 151 are not successfully bonded, a connection material 163 ( Figure 5 ) can be provided between the first reflective member 151 on the sidewall of the light-emitting unit 120 and the first conductive member 161 of the overlapping part by a repair tool 170 ( Figure 5), and electrically connect the first reflector 151 on the side wall of the light-emitting unit 120 and the first conductive member 161 of the overlapping portion through the connection material 163, so as to realize the electrical connection between the first reflector 151 and the first conductive member 161, and perform in-situ direct repair on the light-emitting unit 120 from the side of the light-emitting unit 120, which can reduce the cost and difficulty of repairing the light-emitting unit 120, save the repair time. In addition, there is no need to perform secondary alignment on the light-emitting unit 120 and the array substrate 110, so that the success rate and reliability of the repair can be improved. For example, the connection material 163 may include solder or conductive adhesive, etc. Among them, the first conductive member 161 not bonded to the light-emitting unit 120 may form a first unbonded conductive member.

[0096] Exemplarily, Figure 3 the second conductive member 162 in is in a bonded state with the light-emitting unit 120. Refer to Figure 5 , the second conductive member 162 not bonded to the light-emitting unit 120 ( Figure 3 ) may form a second unbonded conductive member 164. The orthographic projection of the second reflector 152 on the side wall of the light-emitting unit 120 on the array substrate 110 may partially overlap with the second unbonded conductive member 164, and the second reflector 152 on the side wall of the light-emitting unit 120 and the second unbonded conductive member 164 of the overlapping portion may be electrically connected through the connection material 163, so as to realize the electrical connection between the second reflector 152 and the second unbonded conductive member 164, and perform in-situ direct repair on the light-emitting unit 120 from the side of the light-emitting unit 120. The principle has been described and will not be repeated. Among them, in Figure 5 , the first conductive member 161 on the left is in a bonded state with the light-emitting unit 120, while the second conductive member 162 on the right ( Figure 3 ) is in an unbonded state with the light-emitting unit 120, and the second conductive member 162 forms a second unbonded conductive member 164. The repair tool 170 may be used to supplement the connection material 163 from the side of the light-emitting unit 120, and the second unbonded conductive member 164 and the light-emitting unit 120 are electrically connected through the connection material 163, so as to realize the repair.

[0097] Exemplarily, at least one of the first conductive member 161 and the second conductive member 162 may include a first sub-conductive member and a second sub-conductive member. For example, the first sub-conductive member may be a metal layer formed on the array substrate 110, and the second sub-conductive member may include solder, conductive adhesive, etc. The bonding between the light-emitting unit 120 and the first sub-conductive member may be achieved through the second sub-conductive member, thereby realizing the bonding between the light-emitting unit 120 and the array substrate 110. For example, in an embodiment where the first conductive member 161 includes a first sub-conductive member and a second sub-conductive member, the first sub-conductive member of the first conductive member 161 may be located on the surface of the array substrate 110 facing the light-emitting unit 120, and the first sub-conductive member of the first conductive member 161 and the first reflector 151 may be electrically connected through the second sub-conductive member of the first conductive member 161. For example, the second sub-conductive member of the first conductive member 161 may be provided between the side wall of the light-emitting unit 120 and the side of the first reflector 151 facing away from the light-emitting unit 120, and between the first sub-conductive member and the light-emitting unit 120. In an embodiment where the second conductive member 162 includes a first sub-conductive member and a second sub-conductive member, the first sub-conductive member of the second conductive member 162 may be a low-level signal line, and the first sub-conductive member may be located on the surface of the array substrate 110 facing the light-emitting unit 120. The first sub-conductive member of the second conductive member 162 and the second reflector 152 may be electrically connected through the second sub-conductive member of the second conductive member 162. For example, the second sub-conductive member of the second conductive member 162 is provided between the side wall of the light-emitting unit 120 and the side of the second reflector 152 facing away from the light-emitting unit 120, and between the first sub-conductive member and the light-emitting unit 120. Among them, in an embodiment where the second sub-conductive member is solder, in the same conductive member (the first conductive member 161 or the second conductive member 162), at least part of the first sub-conductive member and at least part of the second sub-conductive member may form an alloy after welding and cannot be distinguished.

[0098] Exemplarily, in an embodiment where the first conductive member 161 includes a first sub-conductive member and a second sub-conductive member, if the bonding between the first conductive member 161 and the first reflector 151 is not successful, repair is required between the first conductive member 161 and the first reflector 151 to achieve electrical connection. When the second sub-conductive member of the first conductive member 161 is missing on the first sub-conductive member of the first conductive member 161, the unsuccessfully bonded first conductive member 161 may only include the first sub-conductive member. Or, when the second sub-conductive member of the first conductive member 161 is provided on the first sub-conductive member of the first conductive member 161 but the bonding is not successful (for example, the soldering is poor or disconnected after soldering), the unsuccessfully bonded first conductive member 161 may include both the first sub-conductive member and the second sub-conductive member. The orthographic projection of the first reflector 151 on the side wall of the light-emitting unit 120 on the array substrate 110 may partially coincide with the first sub-conductive member of the first conductive member 161, so as to ensure that the orthographic projection of the first reflector 151 on the side wall of the light-emitting unit 120 on the array substrate 110 can partially coincide with the first conductive member 161, so as to perform in-situ direct repair on the light-emitting unit 120 from the side of the light-emitting unit 120 to achieve electrical connection between the first reflector 151 and the first conductive member 161. In an embodiment where the second conductive member 162 includes a first sub-conductive member and a second sub-conductive member, if the bonding between the second conductive member 162 and the second reflector 152 is not successful, repair is required between the second conductive member 162 and the second reflector 152 to achieve electrical connection. When the second sub-conductive member of the second conductive member 162 is missing on the first sub-conductive member of the second conductive member 162, the unsuccessfully bonded second conductive member 162 may only include the first sub-conductive member. Or, when the second sub-conductive member of the second conductive member 162 is provided on the first sub-conductive member of the second conductive member 162 but the bonding is not successful, the unsuccessfully bonded second conductive member 162 may include both the first sub-conductive member and the second sub-conductive member. The orthographic projection of the second reflector 152 on the side wall of the light-emitting unit 120 on the array substrate 110 may partially coincide with the first sub-conductive member of the second conductive member 162, so as to ensure that the orthographic projection of the second reflector 152 on the side wall of the light-emitting unit 120 on the array substrate 110 can partially coincide with the second conductive member 162, which is convenient for performing in-situ direct repair on the light-emitting unit 120 from the side of the light-emitting unit 120. The principle has been described above and will not be elaborated here.

[0099] Exemplarily, refer to Figure 3 and Figure 4, on the side of the light-transmitting member 121 facing the array substrate 110 of the light-emitting device 122 (i.e., the light-transmitting member 121 between the light-emitting device 122 and the array substrate 110), the side facing the array substrate 110 may have a first through hole 1211 and a second through hole 1212. The light-transmitting member 121 between the first through hole 1211 and the second through hole 1212 may form a convex structure 1213, and the convex structure 1213 may protrude in the direction of the array substrate 110. Among them, the first through hole 1211 may expose the first electrode 1221, the second through hole 1212 may expose the second electrode 1222, and the first conductive member 161 may be located in the first through hole 1211, which is beneficial to improving the connection stability between the first conductive member 161 and the light-emitting unit 120. The second conductive member 162 may be located in the second through hole 1212, which is beneficial to improving the connection stability between the second conductive member 162 and the light-emitting unit 120.

[0100] In an embodiment where the first electrode 1221 and the first conductive member 161 are electrically connected through the first reflector 151, and the second electrode 1222 and the second conductive member 162 are electrically connected through the second reflector 152, the first reflector 151 may be located in the first through hole 1211, which can increase the area of the first reflector 151 and is beneficial to reducing the contact resistance between the first reflector 151 and the first conductive member 161. The second reflector 152 may be located in the second through hole 1212, which can increase the area of the second reflector 152 and is beneficial to reducing the contact resistance between the second reflector 152 and the second conductive member 162. For example, the orthographic projection of the reflector 150 (the first reflector 151 and the second reflector 152) on the array substrate 110 may not overlap with the orthographic projection of the convex structure 1213 on the array substrate 110. By separating the first reflector 151 and the second reflector 152 through the convex structure 1213, the distance between the first reflector 151 and the second reflector 152 can be increased, which is beneficial to preventing the short circuit between the first reflector 151 and the second reflector 152. In an embodiment where the conductive member (the first conductive member 161 and / or the second conductive member 162) includes a first sub-conductive member and a second sub-conductive member, the convex structure 1213 is beneficial to reducing the flow of the second sub-conductive member during the bonding process of the light-emitting unit 120 and the array substrate 110, thereby being beneficial to preventing the short circuit between the first conductive member 161 and the second conductive member 162. In some other examples, at least one of the first reflector 151 and the second reflector 152 may cover the convex structure 1213.

[0101] It should be noted here that the numerical values and numerical ranges involved in the embodiments of the present application are approximate values. Affected by the manufacturing process, there may be a certain range of errors, and those skilled in the art can consider this part of the errors to be negligible.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized in that, it includes: an array substrate, and a plurality of light-emitting units and a plurality of blocking members disposed on the array substrate. The plurality of light-emitting units are spaced apart, and a light-shielding layer is disposed between every two adjacent light-emitting units; the plurality of light-emitting units and the plurality of blocking members are provided in one-to-one correspondence. The blocking member is located on a side of the light-emitting unit and the light-shielding layer away from the array substrate, and a positive projection of the blocking member on the array substrate covers a positive projection of the light-emitting unit on the array substrate and a partial positive projection of the light-shielding layer on the array substrate.

2. The display panel according to claim 1, characterized in that, the light-emitting unit includes a light-emitting device and a light-transmitting member, and the light-transmitting member surrounds the outer periphery of the light-emitting device; preferably, along the thickness direction of the array substrate, there is a spacing between the light-shielding layer and the blocking member; preferably, a side of the light-transmitting member facing the blocking member is connected to the blocking member; preferably, a surface of the light-emitting device facing away from the array substrate is flush with a surface of the light-transmitting member facing away from the array substrate.

3. The display panel according to claim 2, characterized in that, the light-transmitting member is also located between the light-emitting device and the array substrate.

4. The display panel according to claim 2 or 3, characterized in that, it further includes a plurality of reflecting members, and the plurality of reflecting members are provided in one-to-one correspondence with the plurality of light-emitting units. The reflecting members are located on side walls of the light-emitting units; preferably, the reflecting members are also located on a surface of the light-emitting unit facing the array substrate; preferably, the reflecting members are also located on a surface of the blocking member facing the array substrate.

5. The display panel according to claim 4, characterized in that, it includes a first conductive member and a second conductive member. Both the first conductive member and the second conductive member are located on a surface of the array substrate facing the light-emitting unit. A first electrode of the light-emitting device is electrically connected to the first conductive member, and a second electrode of the light-emitting device is electrically connected to the second conductive member; preferably, the light-shielding layer is disposed between the first conductive member and the second conductive member; preferably, the light-shielding layer includes an ink layer.

6. The display panel according to claim 5, characterized in that, the material of the reflecting member includes a conductive material. The reflecting member includes a first reflecting member and a second reflecting member. Both the first reflecting member and the second reflecting member are located on a surface of the light-emitting unit facing the array substrate. The first electrode and the first conductive member are electrically connected through the first reflecting member, and the second electrode and the second conductive member are electrically connected through the second reflecting member; preferably, the first reflecting member is located on a side wall of the light-emitting unit, and a positive projection of the first reflecting member located on the side wall of the light-emitting unit on the array substrate partially coincides with the first conductive member; preferably, the second reflecting member is located on a side wall of the light-emitting unit, and a positive projection of the second reflecting member located on the side wall of the light-emitting unit on the array substrate partially coincides with the second conductive member; Preferably, a first conductive member is provided on a side of the first reflector facing away from the light-emitting unit and located on a sidewall of the light-emitting unit; Preferably, a second conductive member is provided on a side of the second reflector facing away from the light-emitting unit and located on a sidewall of the light-emitting unit; Preferably, at least one of the first conductive member and the second conductive member includes a first sub-conductive member and a second sub-conductive member. The first sub-conductive member is located on a surface of the array substrate facing the light-emitting unit, and the first sub-conductive member and the light-emitting unit are electrically connected through the second sub-conductive member; Preferably, the first conductive member includes the first sub-conductive member and the second sub-conductive member. A positive projection of the first reflector located on the sidewall of the light-emitting unit on the array substrate partially coincides with the first sub-conductive member of the first conductive member; Preferably, the second conductive member includes the first sub-conductive member and the second sub-conductive member. A positive projection of the second reflector located on the sidewall of the light-emitting unit on the array substrate partially coincides with the first sub-conductive member of the second conductive member.

7. The display panel according to claim 6, wherein, The light-transmitting member located on a side of the light-emitting device facing the array substrate has a first through-hole and a second through-hole on a side facing the array substrate. The first through-hole exposes the first electrode, and the second through-hole exposes the second electrode. The first conductive member is located in the first through-hole, and the second conductive member is located in the second through-hole; Preferably, the first reflector is located in the first through-hole, and the second reflector is located in the second through-hole.

8. The display panel according to any one of claims 1-3, wherein, The sidewall of the light-emitting unit includes a first end and a second end in the thickness direction of the array substrate. The first end is close to the blocking member, and the second end is close to the array substrate. The first end is inclined in a direction away from the center of the light-emitting unit; 9. The display panel according to any one of claims 1-3, wherein, The blocking member includes a substrate layer and an adhesive layer. The substrate layer and the adhesive layer are stacked along the thickness direction of the array substrate, and the substrate layer and the light-emitting unit are connected through the adhesive layer; Preferably, sidewalls of the substrate layer and the adhesive layer are flush; Preferably, the refractive index of the substrate layer is greater than the refractive index of the adhesive layer.

10. A display device, wherein, comprises: The display panel according to any one of claims 1-9 above.

Images