Display panel and display apparatus

Abstract

The present application belongs to the technical field of display. Disclosed are a display panel and a display apparatus. The display panel comprises a driving backplane, a dimming module, a liquid crystal unit and a plurality of light-emitting devices. The dimming module is arranged in the display panel, and divergent light emitted by the plurality of light-emitting devices is adjusted to collimated light by means of the dimming module. In addition, the liquid crystal unit is arranged on the side of the dimming module that faces away from the driving backplane; when the liquid crystal unit is in a transparent state, the collimated light remains collimated light after passing through the liquid crystal unit; and when the liquid crystal unit is in a scattering state, the collimated light can be adjusted to divergent light after passing through the liquid crystal unit. Therefore, the liquid crystal unit can be controlled to be in the transparent state, such that the display panel is in an anti-peeping display state, and the liquid crystal unit can also be controlled to be in the scattering state, such that the display panel is in a shared display state, thereby effectively enriching display functions of the display panel.

Description

Display panel and display device

[0001] This application claims priority to Chinese patent application No. 202410110029.9, filed on January 25, 2024, entitled “Display Panel and Display Device,” the entire contents of which are incorporated herein by reference. Technical Field

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

[0003] With the continuous advancement of anti-peeping display panels, they are gradually developing towards high performance, large screens, and advanced technology to meet the diverse needs of users. In particular, as the viewing angle of display panels becomes wider and wider, users lack privacy when traveling or in other public places, and the content on the display panel can be easily seen by people around them, causing inconvenience to users.

[0004] Currently, privacy protection is mainly achieved by attaching a privacy film to the display panel to prevent the leakage of user private information. The privacy film can block light outside the visible range, so that the user can only see the display content of the display panel within the visible range, thus preventing privacy.

[0005] However, the display panel with the anti-peep film attached thereto can only perform anti-peep display, resulting in high limitations in the display panel when displaying images. Summary of the Invention

[0006] The embodiments of the present application provide a display panel and a display device. This can solve the problem of high limitations of display panels when displaying images. The technical solution is as follows:

[0007] In one aspect, a display panel is provided, comprising:

[0008] Driver backplane;

[0009] a plurality of light-emitting devices located on one side of the driving backplane, the light-emitting devices being electrically connected to the driving backplane;

[0010] a dimming module located on a side of the plurality of light-emitting devices away from the driving backplane, the dimming module being used to adjust the divergent light emitted by the light-emitting devices into collimated light;

[0011] A liquid crystal unit located on a side of the dimming module away from the driving backplane, wherein the liquid crystal unit has a transparent state and a scattering state;

[0012] Wherein, when the liquid crystal unit is in a transparent state, the collimated light remains collimated light after passing through the liquid crystal unit; when the liquid crystal unit is in a scattering state, the collimated light is adjusted to divergent light after passing through the liquid crystal unit.

[0013] Optionally, the liquid crystal unit includes: a first electrode and a second electrode stacked and arranged opposite to each other, and a liquid crystal layer located between the first electrode and the second electrode; the first electrode is closer to the driving backplane than the second electrode, and the liquid crystal layer includes: polymer dispersed liquid crystal molecules;

[0014] A voltage is applied between the first electrode and the second electrode, so that the liquid crystal layer is in the light-transmitting state; and no voltage is applied between the first electrode and the second electrode, so that the liquid crystal layer is in the scattering state.

[0015] Optionally, the display panel includes a plurality of liquid crystal units, and the plurality of liquid crystal units correspond one-to-one to the plurality of light-emitting devices, and the orthographic projections of the light-emitting devices on the driving backplane are located within the orthographic projections of the corresponding liquid crystal units on the driving backplane.

[0016] Optionally, the plurality of first electrodes and the plurality of second electrodes in the plurality of liquid crystal cells are separately arranged;

[0017] Alternatively, the plurality of first electrodes and the plurality of second electrodes in the plurality of liquid crystal cells are connected;

[0018] Alternatively, one of the plurality of first electrodes and the plurality of second electrodes in the plurality of liquid crystal cells is provided separately, and the other is provided connected.

[0019] Optionally, in a case where the plurality of first electrodes in the plurality of liquid crystal cells are separately arranged, the plurality of first electrodes are divided into at least two first electrode groups, one first electrode group includes at least two first electrodes, and the display panel further includes: at least two first signal lines corresponding one-to-one to the at least two first electrode groups, each first electrode in one first electrode group is electrically connected to a corresponding first signal line;

[0020] And / or, in the case where the plurality of second electrodes in the plurality of liquid crystal units are separately arranged, the plurality of second electrodes are divided into at least two second electrode groups, one second electrode group includes at least two second electrodes, and the display panel further includes: at least two second signal lines corresponding one-to-one to the at least two second electrode groups, and each second electrode in one second electrode group is electrically connected to a corresponding second signal line.

[0021] Optionally, in a case where a plurality of the first electrodes in a plurality of the liquid crystal cells are connected, the display panel further comprises: a first planar electrode arranged in an entire layer, the first planar electrode comprising: a plurality of the first electrodes and a first connecting electrode located between two adjacent first electrodes, the first electrode being connected to the first connecting electrode;

[0022] And / or, in the case where multiple second electrodes in multiple liquid crystal units are connected, the display panel also includes: a second planar electrode arranged in an entire layer, the second planar electrode includes: multiple second electrodes, and a second connecting electrode located between two adjacent first electrodes, the second electrode being connected to the second connecting electrode.

[0023] Optionally, the multiple liquid crystal layers in the multiple liquid crystal units are separately arranged; or, the multiple liquid crystal layers in the multiple liquid crystal units are connected.

[0024] Optionally, the display panel further includes: a touch electrode layer located on the side of the multiple liquid crystal units facing away from the driving backplane, the touch electrode layer having multiple grid holes corresponding one-to-one to the multiple light-emitting devices, and the orthographic projections of the light-emitting devices on the driving backplane are located within the orthographic projections of the corresponding grid holes on the driving backplane.

[0025] Optionally, when the multiple second electrodes in the multiple liquid crystal units are separately arranged, the multiple second electrodes correspond one-to-one to the multiple grid holes, and the orthographic projection of the second electrode on the driving backplane is located within the orthographic projection of the corresponding grid hole on the driving backplane.

[0026] Optionally, when the multiple first electrodes in the multiple liquid crystal units are separately arranged, the multiple first electrodes correspond one-to-one to the multiple grid holes, and the orthographic projection of the first electrode on the driving backplane is located within the orthographic projection of the corresponding grid hole on the driving backplane.

[0027] Optionally, when multiple second electrodes in multiple liquid crystal units are connected, the display panel also includes: a shielding electrode that is located in an entire layer between the second electrode and the touch electrode layer, and the shielding electrode is insulated from the second electrode and insulated from the touch electrode layer.

[0028] Optionally, the display panel further includes: a first planar layer located on a side of the plurality of liquid crystal units away from the driving backplane, and the touch electrode layer is located on a side of the first planar layer away from the driving backplane.

[0029] Optionally, when the multiple first electrodes, the multiple second electrodes and the multiple liquid crystal layers in the multiple liquid crystal units are all arranged separately, the first flat layer includes: a covering portion located on the side of the touch electrode layer facing the driving backplane, and a spacer portion connected to the covering portion on the side facing the driving backplane, and the spacer portion is distributed between two adjacent liquid crystal units.

[0030] Optionally, the dimming module includes: a first dimming function layer and a second dimming function layer stacked together, wherein the first dimming function layer is closer to the driving backplane than the second dimming function layer;

[0031] The first dimming function layer has a plurality of dimming openings corresponding one-to-one to the plurality of light-emitting devices, and the orthographic projections of the light-emitting devices on the driving backplane are located within the orthographic projections of the corresponding dimming openings on the driving backplane;

[0032] At least a portion of the second dimming functional layer is filled into the plurality of dimming openings;

[0033] Wherein, the refractive index of the second dimming functional layer is greater than the refractive index of the first dimming functional layer.

[0034] Optionally, an angle between an inner wall of the dimming opening and a surface of the first dimming functional layer facing the driving backplane is an acute angle.

[0035] Optionally, the second dimming function layer includes: a dimming covering part covering the first dimming function layer, and a plurality of dimming filling parts connected to the side of the dimming covering part facing the driving backplane, the plurality of dimming filling parts correspond one-to-one to the plurality of dimming openings, and the dimming filling parts are located in the corresponding dimming openings.

[0036] Optionally, the display panel includes a plurality of dimming modules, and the plurality of dimming modules are stacked in a direction away from the driving backplane.

[0037] Optionally, the display panel also includes: a first black matrix and a second flat layer located between two adjacent dimming modules, the second flat layer is located on the side of the first black matrix away from the driving backplane, the first black matrix has a plurality of first light-through holes corresponding one-to-one to the plurality of dimming openings, and the orthographic projection of the first light-through holes on the driving backplane is located within the orthographic projection of the corresponding dimming opening on the driving backplane.

[0038] Optionally, the display panel further comprises: an encapsulation layer, a color resist layer and a protective cover plate;

[0039] The encapsulation layer is used to encapsulate the multiple light-emitting devices; the protective cover is located on the side of the liquid crystal unit away from the driving backplane; the color resist layer is located between the encapsulation layer and the dimming module, or the color resist layer is located on the side of the protective cover away from the driving backplane.

[0040] On the other hand, a display device is provided, comprising: a power supply component, and a display panel electrically connected to the power supply component, wherein the display panel comprises: any one of the display panels described above.

[0041] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0042] A display panel comprises: a driving backplane, a dimming module, a liquid crystal unit and a plurality of light-emitting devices. A dimming module is provided in the display panel, and the divergent light emitted by the plurality of light-emitting devices can be adjusted into collimated light through the dimming module. At the same time, a liquid crystal unit can be provided on the side of the dimming module away from the driving backplane, and the liquid crystal unit can have a transparent state and a scattering state. When the liquid crystal unit is in a transparent state, the collimated light can still be collimated light after passing through the liquid crystal unit, and when the liquid crystal unit is in a scattering state, the collimated light can be adjusted into divergent light after passing through the liquid crystal unit. Therefore, the display panel can be in an anti-peeping display state by controlling the liquid crystal unit to be in a transparent state, and can also be in a shared display state by controlling the liquid crystal unit to be in a scattering state. For this reason, the display panel provided by the present application can not only perform anti-peeping display, but also perform shared display, effectively enriching the display function of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0044] FIG1 is a schematic diagram of a film structure of a display panel provided in an embodiment of the present application;

[0045] FIG2 is a schematic diagram of a film layer structure of another display panel provided in an embodiment of the present application;

[0046] FIG3 is a schematic diagram of a film layer structure of another display panel provided in an embodiment of the present application;

[0047] FIG4 is a top view of a display panel provided in an embodiment of the present application;

[0048] FIG5 is a top view of another display panel provided in an embodiment of the present application;

[0049] FIG6 is a schematic diagram of a film structure of another display panel provided in an embodiment of the present application;

[0050] FIG7 is a top view of another display panel provided in an embodiment of the present application;

[0051] FIG8 is a schematic diagram of a film structure of a display panel provided in another embodiment of the present application;

[0052] FIG9 is a schematic diagram of a film structure of a display panel provided in yet another embodiment of the present application;

[0053] FIG10 is a schematic diagram of a film structure of a display panel provided in yet another embodiment of the present application;

[0054] FIG11 is a top view of a red color film provided in an embodiment of the present application;

[0055] FIG12 is a top view of a green color film provided in an embodiment of the present application;

[0056] FIG13 is a top view of a blue color film provided in an embodiment of the present application. DETAILED DESCRIPTION

[0057] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0058] Please refer to FIG1 , which is a schematic diagram of a film structure of a display panel provided by an embodiment of the present application. The display panel 000 may include: a driving backplane 100 , a dimming module 300 , a liquid crystal unit 400 and a plurality of light-emitting devices 200 .

[0059] The plurality of light emitting devices 200 in the display panel 000 may be located on one side of the driving backplane 100. Here, the plurality of light emitting devices 200 may be electrically connected to the driving backplane 100, and the driving backplane 100 may drive the plurality of light emitting devices 200 to emit light, so that the display panel 000 can display the corresponding picture.

[0060] The dimming module 300 in the display panel 000 can be located on the side of the multiple light-emitting devices 200 away from the driver backplane 100. The dimming module 300 can be used to adjust the divergent light emitted by the light-emitting devices 200 into collimated light. Here, collimated light refers to light whose emission direction is approximately perpendicular to the display surface of the display panel 000 (that is, the angle between it and the normal of the display panel 000 is small). Divergent light refers to light whose emission direction has a large angle with the normal of the display panel 000.

[0061] In this way, when the divergent light emitted by the light-emitting device 200 passes through the dimming module 300, the light emitted from the display side of the display panel 000 is approximately perpendicular to the display surface of the display panel 000. As a result, the user can only view the image presented by the display panel 000 in the normal viewing direction of the display panel 000 (i.e., the direction in which the angle between the user's viewing direction and the normal of the display panel 000 is small), and cannot view the image presented by the display panel 000 in the direction of a wide viewing angle (i.e., the direction in which the angle between the user's viewing direction and the normal of the display panel 000 is large).

[0062] The liquid crystal unit 400 in the display panel 000 can be located on the side of the dimming module 300 facing away from the driver backplane 100. Here, the liquid crystal unit 400 can have a transparent state and a scattering state. When the liquid crystal unit 400 is in the transparent state, collimated light can remain collimated light after passing through the liquid crystal unit 400. When the liquid crystal unit 400 is in the scattering state, the collimated light can be adjusted to divergent light after passing through the liquid crystal unit 400.

[0063] When the liquid crystal unit 400 is in a transparent state, the collimated light can still be collimated light after passing through the liquid crystal unit 400. In this way, the user can only view the image presented by the display panel 000 in the normal viewing direction of the display panel 000, and cannot view the image presented by the display panel 000 in the direction of a large viewing angle. In this case, the display panel 000 can present an anti-peeping image, and the display panel 000 can be in an anti-peeping display state.

[0064] When the liquid crystal unit 400 is in the scattering state, the collimated light can be adjusted to divergent light after passing through the liquid crystal unit 400. In this way, the user can not only view the image presented by the display panel 000 in the normal viewing direction of the display panel 000, but also view the image presented by the display panel 000 in the direction of a wide viewing angle. In this case, the display panel 000 can present a shared image and the display panel 000 can be in a shared display state.

[0065] In the present application, a dimming module 300 is provided in the display panel 000, and the dimming module 300 can adjust the divergent light emitted by the multiple light-emitting devices 200 into collimated light. At the same time, a liquid crystal unit 400 can be provided on the side of the dimming module 300 away from the driving backplane 100, and the liquid crystal unit 400 can have a transparent state and a scattering state. When the liquid crystal unit 400 is in a transparent state, the collimated light can still be a collimated light after passing through the liquid crystal unit 400. When the liquid crystal unit 400 is in a scattering state, the collimated light can be adjusted to a divergent light after passing through the liquid crystal unit 400. Therefore, the display panel 000 can be in an anti-peeping display state by controlling the liquid crystal unit 400 to be in a transparent state, and can also be in a shared display state by controlling the liquid crystal unit 400 to be in a scattering state. For this reason, the display panel 000 provided in the present application can not only perform anti-peeping display, but also perform shared display, effectively enriching the display function of the display panel 000.

[0066] In summary, the embodiment of the present application provides a display panel, comprising: a driving backplane, a dimming module, a liquid crystal unit and a plurality of light-emitting devices. A dimming module is provided in the display panel, and the divergent light emitted by the plurality of light-emitting devices can be adjusted to collimated light through the dimming module. At the same time, a liquid crystal unit can be provided on the side of the dimming module away from the driving backplane, and the liquid crystal unit can have a transparent state and a scattering state. When the liquid crystal unit is in a transparent state, the collimated light can still be a collimated light after passing through the liquid crystal unit, and when the liquid crystal unit is in a scattering state, the collimated light can be adjusted to a divergent light after passing through the liquid crystal unit. Therefore, the display panel can be in an anti-peeping display state by controlling the liquid crystal unit to be in a transparent state, and can also be in a shared display state by controlling the liquid crystal unit to be in a scattering state. For this reason, the display panel provided by the present application can not only perform anti-peeping display, but also perform shared display, effectively enriching the display function of the display panel.

[0067] Please refer to Figure 2, which is a schematic diagram of the film layer structure of another display panel provided in an embodiment of the present application. The liquid crystal cell 400 in the display panel 000 may include: a first electrode 401 and a second electrode 402 stacked and arranged opposite each other, and a liquid crystal layer 403 located between the first electrode 401 and the second electrode 402. Here, the first electrode 401 in the liquid crystal cell 400 is closer to the driving backplane 100 than the second electrode 402.

[0068] Optionally, the liquid crystal layer 403 in the display panel 000 may include polymer dispersed liquid crystal (English: Polymer Dispersed Liquid Crystal; abbreviated: PDLC).

[0069] The working principle of PDLC: PDLC is a mixture of low-molecular-weight liquid crystals and prepolymers. Under certain conditions, a polymerization reaction occurs to form micron-sized liquid crystal particles uniformly dispersed in a polymer matrix. The dielectric anisotropy of the liquid crystal molecules is then utilized to create a material with electro-optical response properties, without the need for polarizers or alignment layers. The optical properties of PDLC depend on the degree of match between the effective refractive index of the liquid crystal molecules and the refractive index of the polymer matrix. When no voltage is applied to PDLC, the liquid crystal molecules are disordered. When incident light strikes the PDLC, it is refracted and reflected multiple times at the interface between the liquid crystal molecules and the polymer matrix, resulting in a milky white scattering state. When voltage is applied to PDLC, the liquid crystal molecules align along the direction of the electric field. Incident light passes directly through the PDLC without reflection or refraction.

[0070] In the present application, a voltage may be applied between the first electrode 401 and the second electrode 402 in the liquid crystal unit 400, so that the liquid crystal layer 403 may be in a light-transmitting state. For example, the display panel 000 may apply two different potentials to the first electrode 401 and the second electrode 402, respectively, so that a voltage is applied between the first electrode 401 and the second electrode 402. For example, the display panel 000 may apply a negative potential to the first electrode 401 and a positive potential to the second electrode 402. In this way, a vertical electric field may be formed between the two, and the liquid crystal molecules in the liquid crystal layer 403 between the two may be deflected under the action of the vertical electric field. The long axis of the deflected liquid crystal molecules is parallel to the direction of the vertical electric field, so that the liquid crystal layer 403 may be in a light-transmitting state. In this way, after the divergent light emitted by the light-emitting device 200 in the display panel 000 is collimated by the dimming module 300, the collimated light can directly pass through the liquid crystal unit 400, and in the process of passing through the liquid crystal unit 400, the collimated light will not undergo any refraction or reflection in the liquid crystal layer 403, so that the collimated light remains collimated light after passing through the liquid crystal unit 400.

[0071] No voltage may be applied between the first electrode 401 and the second electrode 402 in the liquid crystal cell 400, so that the liquid crystal layer 403 may be in a scattering state. For example, the display panel 000 may simultaneously apply the same potential to the first electrode 401 and the second electrode 402, so that no voltage is applied between the first electrode 401 and the second electrode 402. For example, the display panel 000 may simultaneously apply a potential of 0 volts to the first electrode 401 and the second electrode 402, that is, no potential is applied to the first electrode 401 and the second electrode 402 at the same time. In this way, no vertical electric field is formed between the two electrodes, and the liquid crystal molecules in the liquid crystal layer 403 between the two electrodes are disordered, so that the liquid crystal layer 403 is in a scattering state. In this way, after the divergent light emitted by the light-emitting device 200 in the display panel 000 is collimated by the dimming module 300, the collimated light can be refracted and reflected multiple times in the liquid crystal layer 403 when passing through the liquid crystal unit 400, so as to generate light scattering lines, thereby allowing the collimated light to be adjusted to divergent light after passing through the liquid crystal unit 400.

[0072] In the present application, as shown in FIG2 , the display panel 000 may include multiple liquid crystal units 400, each of which may correspond one-to-one to a plurality of light-emitting devices 200. Furthermore, the orthographic projection of each light-emitting device 200 in the display panel 000 on the driver backplane 100 may be located within the orthographic projection of the corresponding liquid crystal unit 400 on the driver backplane 100. This ensures that light emitted by the multiple light-emitting devices 200 can be directed to the corresponding liquid crystal unit 400 after passing through the dimming module 300.

[0073] In an embodiment of the present application, within the display panel 000, the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal units 400 can be separately arranged; or, the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal units 400 can be connected; or, one of the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal units 400 is separately arranged, and the other is connected.

[0074] It should be noted that, as shown in FIG2 , the multiple first electrodes 401 in the multiple liquid crystal cells 400 are separately arranged, which means that these first electrodes 401 are all independently arranged block electrodes. Correspondingly, the multiple second electrodes 402 in the multiple liquid crystal cells 400 are separately arranged, which means that these second electrodes 402 are all independently arranged block electrodes.

[0075] As shown in Figure 3, Figure 3 is a schematic diagram of the film layer structure of another display panel provided in an embodiment of the present application. The multiple first electrodes 401 in the multiple liquid crystal units 400 are connected and arranged, which means that these first electrodes 401 are all connected as a whole. For example, the display panel 000 may also include: a first planar electrode 500 arranged in an entire layer. The first planar electrode 500 may include: a plurality of first electrodes 401, and a first connecting electrode 501 located between two adjacent first electrodes 401, and the first electrode 401 may be connected to the first connecting electrode 501. Here, the first connecting electrode 501 may be a grid-shaped electrode, and each first electrode 401 may be electrically connected to the first connecting electrode 501 in the corresponding grid hole in the first connecting electrode 501. It should be noted that the first connecting electrode 501 and the multiple first electrodes 401 may be integrally formed, which belongs to a planar electrode layer arranged in an entire layer.

[0076] Correspondingly, the fact that the multiple second electrodes 402 in the multiple liquid crystal units 400 are connected means that these second electrodes 402 are all connected as a whole. For example, the display panel 000 may also include: a second planar electrode 600 arranged in an entire layer. The second planar electrode 600 may include: a plurality of second electrodes 402, and a second connecting electrode 601 located between two adjacent second electrodes 402, and the second electrode 402 may be connected to the second connecting electrode 601. Here, the second connecting electrode 601 may be a grid-shaped electrode, and each second electrode 402 may be electrically connected to the second connecting electrode 601 in a corresponding grid hole in the second connecting electrode 601. It should be noted that the second connecting electrode 601 and the multiple second electrodes 402 may be integrally formed, which belongs to a planar electrode layer arranged in an entire layer.

[0077] It should be noted that when the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal units 400 are all connected, there is no need to add a separate graphical process to form the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal units 400, which can effectively simplify the manufacturing difficulty of the display panel 000 and reduce the manufacturing cost of the display panel 000.

[0078] In the embodiment of the present application, the entire effective display area of ​​the display panel 000 can be in the anti-peeping display state or the shared display state at the same time. Of course, it is also possible to not only have the display panel 000 be in the anti-peeping display state or the shared display state at the same time, but also to have a portion of the display area of ​​the display panel 000 be in the anti-peeping display state and another portion of the display area be in the shared display state. To this end, the embodiment of the present application will be schematically explained using the following two optional implementation methods as examples:

[0079] In a first optional implementation, when only the entire active display area of ​​the display panel 000 needs to be in the anti-peeping display state or the shared display state, it is necessary to simultaneously set each liquid crystal cell 400 in the display panel 000 to a transparent state or a scattering state. There are multiple ways to simultaneously set each liquid crystal cell 400 to a transparent state or a scattering state. The following uses two possible implementations as examples for illustration.

[0080] In a first implementation, when the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal cells 400 are connected, applying a potential to the first planar electrode 500 can simultaneously apply the same potential to the multiple first electrodes 401 in the multiple liquid crystal cells 400. Similarly, applying a potential to the second planar electrode 600 can simultaneously apply the same potential to the multiple second electrodes 402 in the multiple liquid crystal cells 400. In this way, by controlling the potentials applied to the first planar electrode 500 and the second planar electrode 600, each liquid crystal cell 400 in the display panel 000 can be simultaneously in a transparent state, so that the entire effective display area of ​​the display panel 000 is simultaneously in an anti-peeping display state. Alternatively, each liquid crystal cell 400 in the display panel 000 can be simultaneously in a scattering state, so that the entire effective display area of ​​the display panel 000 is simultaneously in a shared state.

[0081] A second possible implementation method is that, when at least one of the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal units 400 are separately arranged, the multiple separately arranged first electrodes 401 can be connected by the same signal line, and / or, the separately arranged second electrodes 402 can be connected by the same signal line.

[0082] For example, taking the case where multiple first electrodes 401 in multiple liquid crystal cells 400 are separately arranged as shown in FIG4 , which is a top view of a display panel provided in an embodiment of the present application, in the display panel 000, multiple first electrodes 401 can be connected in series or in parallel by the same signal line L0. By applying a potential to the signal line L0, the same potential can be applied to multiple first electrodes 401 in multiple liquid crystal cells 400 at the same time.

[0083] In this case, if the plurality of second electrodes 402 are disposed separately, these second electrodes 402 can be connected in series or in parallel via another signal line. By applying a potential to this signal line, the same potential can be simultaneously applied to the plurality of second electrodes 402 in the plurality of liquid crystal cells 400. If the plurality of second electrodes 402 are disposed in a connected manner, the same potential can be simultaneously applied to the plurality of second electrodes 402 by applying a potential to the second planar electrode 600.

[0084] In this way, each liquid crystal unit 400 in the display panel 000 can be in a transparent state at the same time, so that the entire effective display area of ​​the display panel 000 is in an anti-peeping display state at the same time; or each liquid crystal unit 400 in the display panel 000 can be in a scattering state at the same time, so that the entire effective display area of ​​the display panel 000 is in a shared state at the same time.

[0085] In a second optional implementation, when not only the entire effective display area of ​​the display panel 000 is simultaneously in an anti-peeping display state or a shared display state, but also a portion of the display area within the effective display area of ​​the display panel 000 is in an anti-peeping display state and another portion of the display area is in a shared display state, it is necessary to simultaneously place at least some of the liquid crystal cells 400 in the display panel 000 in a transparent state, and / or at least some of the liquid crystal cells 400 in a scattering state. In this case, it is necessary to ensure that at least one of the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal cells 400 is separately disposed. For example, the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal cells 400 are all separately disposed, or one of the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal cells 400 is separately disposed, while the other is connected.

[0086] For example, as shown in FIG5 , which is a top view of another display panel provided by an embodiment of the present application, when the plurality of first electrodes 401 in the plurality of liquid crystal cells 400 are separately arranged, the plurality of first electrodes 401 can be divided into at least two first electrode groups 4011 . In particular, one first electrode group 4011 can include at least two first electrodes 401 .

[0087] Here, the display panel 000 may further include: at least two first signal lines L1 corresponding one-to-one to at least two first electrode groups 4011. Each first electrode 401 in a first electrode group 4011 may be electrically connected to a corresponding first signal line L1. For example, the first electrodes 401 in a first electrode group 4011 may be arranged in an array into multiple rows, and the first electrodes 401 in a row of first electrodes 401 may be connected in series via a first connection line L3, and the ends of the multiple first connection lines L3 may be simultaneously electrically connected to a corresponding first signal line L1. In this way, each first electrode 401 in a first electrode group 4011 may be connected to a corresponding first signal line L1 via the multiple first connection lines L3.

[0088] 5 , when the second electrodes 402 in the plurality of liquid crystal cells 400 are separated, the plurality of second electrodes 402 may be divided into at least two second electrode groups 4021 , wherein one second electrode group 4021 may include at least two second electrodes 402 .

[0089] Here, the display panel 000 may further include: at least two second signal lines L2 corresponding one-to-one with at least two second electrode groups 4021. Each second electrode 402 in a second electrode group 4021 may be electrically connected to a corresponding second signal line L2. For example, the second electrodes 402 in a second electrode group 4021 may be arranged in an array into multiple rows, and the second electrodes 402 in a row of second electrodes 402 may be connected in series via a second connection line L4. The ends of the multiple second connection lines L4 may be simultaneously electrically connected to a corresponding second signal line L2. In this way, each second electrode 402 in a second electrode group 4021 may be connected to a corresponding second signal line L2 via the multiple second connection lines L4.

[0090] In this case, by allowing at least two first signal lines L1 to be connected to different electrical signals, and / or allowing at least two second signal lines L2 to be connected to different signals, the target display area of ​​the display panel 000 can be placed in an anti-peeping display state or in a shared display state. The target display area in the display panel 000 refers to any area within the effective display area of ​​the display panel 000. For example, the target display area can be the entire effective display area in the display panel 000. For another example, the target display area can also be a certain area within the effective display area of ​​the display panel 000. Here, the effective display area of ​​the display panel 000 refers to the area within the display panel 000 in the display panel 000 where the display image can be presented. It should be noted that the following embodiments are all described by taking the example that the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal units 400 are all separately arranged.

[0091] For example, by controlling the first signal line L1 corresponding to a certain first electrode group 4011 to receive a first electrical signal, and controlling the second signal line L2 corresponding to the second electrode group 4021 to receive a signal different from the first electrical signal, the area in the effective display area of ​​the display panel 000 where the first electrode group 4011 is distributed can be placed in an anti-peeping display state. For another example, by controlling the first signal line L1 corresponding to a certain first electrode group 4011 to receive a second electrical signal, and controlling the second signal line L2 corresponding to the second electrode group 4021 to receive a signal identical to the second electrical signal, the area in the effective display area of ​​the display panel 000 where the first electrode group 4011 is distributed can be placed in a shared display state. For another example, by controlling the first signal line L1 corresponding to each first electrode group 4011 to receive a first electrical signal, and controlling the second signal line L2 corresponding to each second electrode group 4021 to receive a signal different from the first electrical signal, the entire effective display area of ​​the display panel 000 can be placed in an anti-peeping display state. For another example, by controlling the first signal lines L1 corresponding to each first electrode group 4011 to access the second electrical signal, and controlling the second signal lines L2 corresponding to each second electrode group 4021 to access the same signal as the second electrical signal, the entire effective display area of ​​the display panel 000 can be in a shared display state.

[0092] For example, the effective display area of ​​the display panel 000 may include: a first display area and a second display area. Here, the first display area and the second display area in the display panel 000 can both serve as the target display area in the above-mentioned embodiment, that is, the first display area and the second display area can both be in an anti-peeping display state and a shared display state. In one possible case, the first display area and the second display area can both be in an anti-peeping display state. In another possible case, the first display area and the second display area can both be in a shared display state. In yet another possible case, one of the first display area and the second display area can be in an anti-peeping display state, and the other can be in a shared display state. In this case, the same effective display area in the display panel 000 can present both an anti-peeping display state and a shared display state, so that the display function of the display panel 000 can be further enriched.

[0093] In the embodiment of the present application, there are many possible forms of the multiple liquid crystal layers 403 in the multiple liquid crystal units 400. The embodiment of the present application will be described using the following two possible forms as examples:

[0094] In the first possible scenario, as shown in FIG2 , the multiple liquid crystal layers 403 in the multiple liquid crystal cells 400 can be separately arranged. In this case, during the preparation process of the multiple liquid crystal layers 403, a layer of PDLC liquid crystal film can be uniformly coated on the panel having the multiple first electrodes 401 formed thereon. This layer of PDLC liquid crystal film is then cured and patterned to obtain the multiple separately arranged liquid crystal layers 403.

[0095] In a second possible scenario, as shown in FIG3 , the multiple liquid crystal layers 403 in the multiple liquid crystal cells 400 can be connected. In this case, the liquid crystal cells 400 can further include a connecting liquid crystal layer 404 located between two adjacent liquid crystal layers 403, and each liquid crystal layer 403 can be connected to the connecting liquid crystal layer 404. Here, the connecting liquid crystal layer 404 can have a grid-like film structure, and each liquid crystal layer 403 can be connected to the connecting liquid crystal layer 404 within corresponding grid holes in the connecting liquid crystal layer 404. It should be noted that the connecting liquid crystal layer 404 and the multiple liquid crystal layers 403 can be integrally formed, resulting in a thin film structure arranged in a single layer. In this case, during the preparation of the multiple liquid crystal layers 403, a layer of PDLC liquid crystal film can be uniformly coated on the panel having the multiple first electrodes 401 formed thereon, and then this layer of PDLC liquid crystal film can be cured. The cured PDLC liquid crystal film here comprises the connecting liquid crystal layer 404 and the multiple liquid crystal layers 403. In this way, there is no need to add a separate patterning process to form the liquid crystal layer 403 in the plurality of liquid crystal units 400 , which can effectively simplify the manufacturing difficulty of the display panel 000 and reduce the manufacturing cost of the display panel 000 .

[0096] It should be noted that in the above embodiment, FIG2 is a schematic illustration of an example in which the multiple first electrodes 401, the multiple second electrodes 402, and the multiple liquid crystal layers 403 in the multiple liquid crystal cells 400 are all separately arranged, while FIG3 is a schematic illustration of an example in which the multiple first electrodes 401, the multiple second electrodes 402, and the multiple liquid crystal layers 403 in the multiple liquid crystal cells 400 are all connected. In other possible implementations, at least one of the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal cells 400 may be separately arranged, and the multiple liquid crystal layers 403 in the multiple liquid crystal cells 400 may be connected. This embodiment of the present application is not limited to this.

[0097] In the present application, as shown in Figures 6 and 7, Figure 6 is a schematic diagram of the film structure of another display panel provided in an embodiment of the present application, and Figure 7 is a top view of another display panel provided in an embodiment of the present application. The display panel 000 may also include: a touch electrode layer 700 located on the side of the multiple liquid crystal units 400 away from the driving backplane 100. The touch electrode layer 700 may have a plurality of grid holes 700a corresponding one-to-one to the multiple light-emitting devices 200, and the orthographic projection of each light-emitting device 200 on the driving backplane 100 may be located within the orthographic projection of the corresponding grid hole 700a on the driving backplane 100. That is, the orthographic projection of the touch electrode layer 700 on the driving backplane 100 does not overlap with the orthographic projection of the light-emitting device 200 on the driving backplane 100. To this end, even if the material of the touch electrode layer 700 is an opaque metal material, it can be ensured that the touch electrode layer 700 will not block the light-emitting device 200, so that the light emitted by the light-emitting device 200 can be transmitted from the corresponding grid holes 700a in the touch electrode layer 700, thereby ensuring that the display panel 000 can display the picture normally.

[0098] Here, in order to ensure that the signal interference between the second electrode 402 and the touch electrode layer 700 is small, some structures in the display panel 000 need to be specially designed. The embodiments of the present application will be described with the following two exemplary implementations as examples:

[0099] In a first exemplary implementation, as shown in FIG6 and FIG7 , when the plurality of second electrodes 402 in the plurality of liquid crystal cells 400 are separately arranged, the plurality of second electrodes 402 can correspond one-to-one to the plurality of grid holes 700 a. Here, the orthographic projection of each second electrode 402 on the driving backplane 100 can be located within the orthographic projection of the corresponding grid hole 700 a on the driving backplane 100. In this way, the orthographic projections of the plurality of second electrodes 402 on the driving backplane 100 can not overlap with the orthographic projections of the touch electrode layer 700 on the driving backplane 100. In this way, the signal interference between the second electrodes 402 and the touch electrode layer 700 can be reduced, so that the signal applied to the second electrodes 402 does not affect the touch function of the touch electrode layer 700, and the thickness of the insulating layer provided between the second electrodes 402 and the touch electrode layer 700 can be reduced.

[0100] Optionally, as shown in Figures 6 and 7, when the multiple first electrodes 401 in the multiple liquid crystal cells 400 are separately arranged, the multiple first electrodes 401 can correspond one-to-one to the multiple grid holes 700a. Here, the orthographic projection of each first electrode 401 on the driving backplane 100 can be located within the orthographic projection of the corresponding grid hole 700a on the driving backplane 100. In this way, the orthographic projections of the multiple first electrodes 401 on the driving backplane 100 can not overlap with the orthographic projections of the touch electrode layer 700 on the driving backplane 100. In this way, the signal interference between the first electrode 401 and the touch electrode layer 700 can be reduced, and the thickness of the insulating layer provided between the first electrode 401 and the touch electrode layer 700 can be reduced.

[0101] A second exemplary implementation is shown in FIG8 , which is a schematic diagram of the film structure of a display panel provided by another embodiment of the present application. In the case where the multiple second electrodes 402 in the multiple liquid crystal cells 400 are connected, the display panel 000 may further include a shielding electrode 800 disposed as a whole layer between the second electrodes 402 and the touch electrode layer 700. The shielding electrode 800 may be insulated from the second electrodes 402 and the touch electrode layer 700. Here, the shielding electrode 800 may receive a low-level signal. In this case, even if the orthographic projection of the touch electrode layer 700 on the driving backplane 100 overlaps with the orthographic projection of the second planar electrode 600 including the multiple second electrodes 402 on the driving backplane 100, the shielding electrode 800 can shield the signal interference between the second electrodes 402 and the touch electrode layer 700, ensuring that the signal applied to the second electrodes 402 does not affect the touch function of the touch electrode layer 700. This also reduces the thickness of the insulating layer between the second electrodes 402 and the touch electrode layer 700.

[0102] In the embodiment of the present application, as shown in Figures 6 and 8 , the display panel 000 may further include a first planar layer 900 located on the side of the plurality of liquid crystal cells 400 facing away from the driving backplane 100, and the touch electrode layer 700 may be located on the side of the first planar layer 900 facing away from the driving backplane 100. Here, through the first and second exemplary implementations described above, the thickness of the portion of the first planar layer 900 located on the side of the plurality of liquid crystal cells 400 facing away from the driving backplane 100 can be ensured to be relatively low, thereby reducing the overall thickness of the display panel 000.

[0103] As shown in Figure 6 , when the multiple first electrodes 401, multiple second electrodes 402, and multiple liquid crystal layers 403 in the multiple liquid crystal cells 400 are all separately arranged, the first planar layer 900 can include: a covering portion 900a located on the side of the touch electrode layer 700 facing the driving backplane 100, and a spacer portion 900b connected to the covering portion 900a on the side facing the driving backplane 100. The spacer portion 900b can be distributed between two adjacent liquid crystal cells 400. In this way, the first planar layer 900 can protect the side surfaces of the multiple liquid crystal cells 400 and the side facing away from the driving backplane 100. Furthermore, the structural design in the first exemplary implementation direction described above can ensure that the thickness of the covering portion 900a in the first planar layer 900 is relatively low.

[0104] In this case, the touch electrode layer 700 in the display panel 000 can be directly set on the side of the covering portion 900a away from the spacer portion 900b, and the touch electrode layer 700 can be insulated from the multiple second electrodes 402 in the multiple liquid crystal units 400 through the covering portion 900a in the first flat layer 900.

[0105] As shown in FIG8 , when the plurality of second electrodes 402 in the plurality of liquid crystal cells 400 are connected and the display panel 000 includes a shielding electrode 800, the shielding electrode 800 can be disposed on a side of the first planar layer 900 facing away from the plurality of liquid crystal cells 400. The shielding electrode 800 can be insulated from the plurality of second electrodes 402 in the plurality of liquid crystal cells 400 by the first planar layer 900. The provision of the shielding electrode 800 can ensure that the overall thickness of the first planar layer 900 is relatively low.

[0106] In this case, the display panel 000 may further include: a first buffer layer 1000 disposed between the shielding electrode 800 and the touch electrode layer 700 . The shielding electrode 800 may be insulated from the touch electrode layer 700 by the first buffer layer 1000 .

[0107] In an embodiment of the present application, as shown in Figure 9, Figure 9 is a schematic diagram of the film layer structure of a display panel provided by another embodiment of the present application. The dimming module 300 in the display panel 000 may include: a first dimming function layer 301 and a second dimming function layer 302 stacked together, and the first dimming function layer 301 can be closer to the driving backplane 100 than the second dimming function layer 302.

[0108] The first dimming function layer 301 in the display panel 000 may have a plurality of dimming openings 301a corresponding one-to-one to the plurality of light emitting devices 200. Here, the orthographic projection of each light emitting device 200 on the driving backplane 100 may be located within the orthographic projection of the corresponding dimming opening 301a on the driving backplane 100.

[0109] At least a portion of the second dimming functional layer 302 in the display panel 000 can be filled into the plurality of dimming openings 301a, and the refractive index of the second dimming functional layer 302 can be greater than the refractive index of the first dimming functional layer 301. In this way, the light emitted by the light-emitting device 200 can be directed toward the second dimming functional layer 302. Among the light rays entering the second dimming functional layer 302, light rays with a small viewing angle (i.e., a small angle between the emission direction and the normal of the display panel 000) can directly pass through the second dimming functional layer 302 and then be emitted, while light rays with a large viewing angle (i.e., a large angle between the emission direction and the normal of the display panel 000) can be emitted toward the inner wall of the dimming opening 301a. Here, since the refractive index of the second dimming function layer 302 is greater than the refractive index of the first dimming function layer 401, the light with a wide viewing angle in the light emitted by the light-emitting device 200 can be totally reflected by the inner wall of the dimming opening 301a, so that the angle between the reflected light and the normal of the display panel when it is emitted from the second dimming function layer 302 is smaller, thereby ensuring that the divergent light emitted by the light-emitting device 200 can be adjusted to collimated light by the dimming module.

[0110] In the embodiment of the present application, as shown in FIG9 , the angle α between the inner wall of the dimming opening 301a and the surface of the first dimming functional layer 301 facing the driving backplane 100 is an acute angle. In this case, the light with a wide viewing angle among the light emitted by the light-emitting device 200, after being directed toward the inner wall of the dimming opening 301a and reflected by the inner wall of the dimming opening 301a, can be emitted from the side of the second dimming functional layer 302 away from the driving backplane 100. Moreover, the angle between the emission direction of these light rays emitted from the side away from the driving backplane 100 after being reflected by the inner wall of the dimming opening 301a and the normal of the display panel 000 is relatively small.

[0111] In the present application, as shown in FIG9 , the second dimming function layer 302 in the display panel 000 may include: a dimming cover portion 3021 covering the first dimming function layer 301, and a plurality of dimming filling portions 3022 connected to the side of the dimming cover portion 3021 facing the driving backplane 100. Here, the plurality of dimming filling portions 3022 may correspond one-to-one to the plurality of dimming openings 301a, and each dimming filling portion 3022 may be located within a corresponding dimming opening 301a.

[0112] It should be noted that the first dimming function layer 301 can be made of an organic material with a lower refractive index, and the second dimming function layer 302 can be made of an organic material with a higher refractive index. Here, during the preparation of the dimming module 300, the first dimming function layer 301 can be formed first, and then the first dimming function layer 301 can be patterned to form a plurality of dimming openings 301a in the first dimming function layer 301. Thereafter, a second dimming function layer 302 can be formed to cover the first dimming function layer 301 having the plurality of dimming openings 301a. The portion of the second dimming function layer 302 that extends into the dimming openings 301a is the dimming filling portion 3022, and the portion of the second dimming function layer 302 that is located above the first dimming function layer 301 is the dimming covering portion 3021.

[0113] Optionally, referring to FIG9 , the display panel 000 may include multiple dimming modules 300, and the multiple dimming modules 300 may be stacked in a direction away from the driver backplane 100. In this case, each dimming module 300 can adjust the incident light with a wide viewing angle to light with a narrow viewing angle. Through the coordination of the multiple dimming modules 300, it can be ensured that the divergent light emitted by the light-emitting device 200 has a high degree of collimation after passing through the multiple stacked dimming modules 300.

[0114] In the embodiment of the present application, as shown in FIG. 9 , the display panel 000 may further include: a first black matrix 1100 and a second planar layer 1200 located between two adjacent dimming modules 300 .

[0115] The first black matrix 1100 may have a plurality of first light-through holes 1100a corresponding one-to-one to the plurality of dimming openings 301a, and the orthographic projection of each first light-through hole 1100a on the driver backplane 100 may be located within the orthographic projection of the corresponding dimming opening 301a on the driver backplane 100. The first black matrix 1100 may be made of BM material. Since BM material has good light absorption, when the first black matrix 1100 is made of BM material, the first black matrix 1100 may block light with a wide viewing angle emitted from the edge of the dimming opening 301a, thereby further improving the collimation of the light adjusted after passing through the dimming module 300.

[0116] Here, the second flat layer 1200 in the display panel 000 can be located on the side of the first black matrix 1100 facing away from the driving backplane. Since the second flat layer 1200 has good flatness, the side of the second flat layer 1200 facing away from the driving backplane 100 can be ensured to have good flatness, thereby increasing the stability of the dimming module 300 formed on the second flat layer 1200.

[0117] In the present application, as shown in FIG. 9 , the display panel 000 may further include: an encapsulation layer 1300 , a color resist layer 1400 and a protective cover plate 1500 .

[0118] The encapsulation layer 1300 in the display panel 000 may be located on a side of the light-emitting device 200 that is away from the driving backplane 100. The encapsulation layer 1300 may be used to encapsulate the light-emitting device 200 to prevent water and oxygen in the external environment from corroding the light-emitting layer in the light-emitting device 200, thereby increasing the service life of the light-emitting device 200.

[0119] The protective cover plate 1500 in the display panel 000 can be located on the side of the liquid crystal unit 400 facing away from the driving backplane 100. For example, the protective cover plate 1500 in the display panel 000 can be located on the side of the touch electrode layer 700 facing away from the driving backplane 100. For example, an adhesive cover layer 1600 can be provided between the touch electrode layer 700 and the protective cover plate 1500, and the protective cover plate 1500 can be bonded to the side of the touch electrode layer 700 facing away from the driving backplane 100 through the cover layer 1600. Here, the protective cover plate 1500 can protect the front side of the display panel 000 to ensure that if the front side of the display panel 000 is subjected to an impact force, the protective cover plate 1500 can withstand the impact force, thereby reducing the probability of the display panel 000 being broken.

[0120] In one possible implementation, as shown in FIG9 , the color resist layer 1400 in the display panel 000 may be located between the encapsulation layer 1300 and the dimming module 300. In this case, the display panel 000 may further include a second buffer layer 1700 and a third planarization layer 1800. The second buffer layer 1700 may be disposed on a side of the encapsulation layer 1300 facing away from the driver backplane 100, the color resist layer 1400 may be disposed on a side of the second buffer layer 1700 facing away from the driver backplane 100, and the third planarization layer 1800 may be disposed between the color resist layer 1400 and the dimming module 300.

[0121] In another possible implementation, as shown in FIG10 , which is a schematic diagram of a film layer structure of a display panel provided by another embodiment of the present application, the color resist layer 1400 in the display panel 000 can be located on the side of the protective cover 1500 facing away from the driver backplane 100. In this case, since the signal lines connecting the first and second electrodes 401 and 402 in the liquid crystal cell 400 and the touch electrode layer 700 all need to be connected to the driver backplane 100, when the color resist layer 1400 is located on the side of the protective cover 1500 facing away from the driver backplane 100, the vertical distance between the first and second electrodes 401 and 402 in the liquid crystal cell 400 and the touch electrode layer 700 and the driver backplane 100 can be kept small. This can further ensure that the step difference of the signal lines connecting the first and second electrodes 401 and 402 in the liquid crystal cell 400 and the touch electrode layer 700 is small, allowing these signal lines to be stably connected to the driver backplane 100 and not easily broken, effectively improving the manufacturing yield of the display panel 000.

[0122] In this case, the display panel 000 may further include a second buffer layer 1700 disposed on the side of the encapsulation layer 1300 facing away from the driving backplane 100 . The dimming module 300 in the display panel 000 may be disposed on the side of the second buffer layer 1700 facing away from the substrate 100 .

[0123] Optionally, the color filter layer 1400 in the display panel 000 may include: a red color filter R, a green color filter G, and a blue color filter B. For example, the display panel 000 may have a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region. Please refer to Figures 11, 12, and 13. Figure 11 is a top view of a red color filter provided in an embodiment of the present application, Figure 12 is a top view of a green color filter provided in an embodiment of the present application, and Figure 13 is a top view of a blue color filter provided in an embodiment of the present application. The red color filter R may at least cover the red sub-pixel region in the display panel 000. Here, the red color filter R may also cover the area between two adjacent sub-pixel regions. The red color filter R has a first hollow region U1 within the green sub-pixel region and a second hollow region U2 within the blue sub-pixel region. The green color filter G may include a block-shaped structure within the first hollow region U1. The green color filter G may cover the green sub-pixel region within the first hollow region U1. The blue color filter B may include: a block-shaped structure located in the second hollow area U2 , and the blue color filter B may cover the blue sub-pixel area in the second hollow area U2 .

[0124] In this case, the color resist layer 1400 in the display panel 000 can be ensured to have a structure similar to a whole layer, so that at least a portion of the ambient light incident on the display panel 000 can be absorbed by the color resist layer 1400. Therefore, the color resist layer 1400 can effectively reduce the reflectivity of the ambient light of the display panel 000, thereby improving the display effect of the display panel 000.

[0125] Optionally, as shown in FIG9 , the display panel 000 may further include a second black matrix 1900 located between two adjacent sub-pixel regions. The second black matrix 1900 may have a plurality of second light-through holes 1900 a corresponding one-to-one to the plurality of dimming openings 301 a. The orthographic projections of the second light-through holes 1900 a on the driving backplane 100 are located within the orthographic projections of the corresponding dimming openings 301 a on the driving backplane 100. The second black matrix 1900 may be made of BM material. Since BM material has good light absorption, the provision of the second black matrix 1900 can effectively reduce the color crosstalk phenomenon in the display panel 000, thereby further improving the display effect of the display panel 000.

[0126] In summary, the embodiment of the present application provides a display panel, comprising: a driving backplane, a dimming module, a liquid crystal unit and a plurality of light-emitting devices. A dimming module is provided in the display panel, and the divergent light emitted by the plurality of light-emitting devices can be adjusted to collimated light through the dimming module. At the same time, a liquid crystal unit can be provided on the side of the dimming module away from the driving backplane, and the liquid crystal unit can have a transparent state and a scattering state. When the liquid crystal unit is in a transparent state, the collimated light can still be a collimated light after passing through the liquid crystal unit, and when the liquid crystal unit is in a scattering state, the collimated light can be adjusted to a divergent light after passing through the liquid crystal unit. Therefore, the display panel can be in an anti-peeping display state by controlling the liquid crystal unit to be in a transparent state, and can also be in a shared display state by controlling the liquid crystal unit to be in a scattering state. For this reason, the display panel provided by the present application can not only perform anti-peeping display, but also perform shared display, effectively enriching the display function of the display panel.

[0127] Embodiments of the present application also provide a display device. This display device can be any product or component with a display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigation system. The display device can include a power supply assembly and a display panel electrically connected to the power supply assembly. The display panel can be the display panel described in the above embodiments.

[0128] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It will also be understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it may be the only layer between the two layers or elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0129] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless expressly limited otherwise.

[0130] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that, Comprising: A driving backplane; A plurality of light-emitting devices located on one side of the driving backplane, and the light-emitting devices are electrically connected to the driving backplane; A dimming module located on the side of the plurality of light-emitting devices facing away from the driving backplane, and the dimming module is used to adjust the divergent light emitted by the light-emitting devices into collimated light; A liquid crystal cell located on the side of the dimming module facing away from the driving backplane, and the liquid crystal cell has a transparent state and a scattering state; Wherein, when the liquid crystal cell is in the transparent state, the collimated light remains collimated light after passing through the liquid crystal cell; when the liquid crystal cell is in the scattering state, the collimated light is adjusted into divergent light after passing through the liquid crystal cell.

2. The display panel according to claim 1, wherein The liquid crystal cell includes: a first electrode and a second electrode which are stacked and oppositely arranged, and a liquid crystal layer located between the first electrode and the second electrode; the first electrode is closer to the driving backplane than the second electrode, and the liquid crystal layer includes: polymer-dispersed liquid crystal molecules; Wherein, a voltage is applied between the first electrode and the second electrode to make the liquid crystal layer in the light-transmitting state; when no voltage is applied between the first electrode and the second electrode, the liquid crystal layer is in the scattering state.

3. The display panel according to claim 2, wherein The display panel includes a plurality of the liquid crystal cells, and the plurality of liquid crystal cells correspond to the plurality of light-emitting devices one by one. The orthographic projection of the light-emitting device on the driving backplane is located within the orthographic projection of the corresponding liquid crystal cell on the driving backplane.

4. The display panel according to claim 3, wherein The plurality of first electrodes and the plurality of second electrodes in the plurality of liquid crystal cells are all separately arranged; Or, the plurality of first electrodes and the plurality of second electrodes in the plurality of liquid crystal cells are all connected; Or, one of the plurality of first electrodes and the plurality of second electrodes in the plurality of liquid crystal cells is separately arranged, and the other is connected.

5. The display panel according to claim 4, wherein When the plurality of first electrodes in the plurality of liquid crystal cells are separately arranged, the plurality of first electrodes are divided into at least two first electrode groups, and one first electrode group includes at least two first electrodes. The display panel further includes: at least two first signal lines corresponding to the at least two first electrode groups one by one, and each first electrode in one first electrode group is electrically connected to a corresponding first signal line; And / or, when the plurality of second electrodes in the plurality of liquid crystal cells are separately arranged, the plurality of second electrodes are divided into at least two second electrode groups, and one second electrode group includes at least two second electrodes. The display panel further includes: at least two second signal lines corresponding to the at least two second electrode groups one by one, and each second electrode in one second electrode group is electrically connected to a corresponding second signal line.

6. The display panel according to claim 4, wherein When the plurality of first electrodes in the plurality of liquid crystal cells are connected, the display panel further includes: a first planar electrode arranged as a whole layer, and the first planar electrode includes: a plurality of the first electrodes and first connection electrodes located between two adjacent first electrodes, and the first electrodes are connected to the first connection electrodes; And / or, when multiple second electrodes in the multiple liquid crystal cells are connected, the display panel further includes: a second planar electrode disposed as a whole layer, the second planar electrode including: multiple second electrodes, and second connection electrodes located between two adjacent first electrodes, the second electrodes being connected to the second connection electrodes.

7. The display panel according to claim 3, wherein, Multiple liquid crystal layers in the multiple liquid crystal cells are separately disposed; or, multiple liquid crystal layers in the multiple liquid crystal cells are connected.

8. The display panel according to any one of claims 3 to 7, characterized in that, The display panel further includes: a touch electrode layer located on a side of the multiple liquid crystal cells away from the driving backplane, the touch electrode layer having multiple grid holes corresponding one-to-one to the multiple light-emitting devices, and a positive projection of the light-emitting device on the driving backplane being located within a positive projection of the corresponding grid hole on the driving backplane.

9. The display panel according to claim 8, wherein, When multiple second electrodes in the multiple liquid crystal cells are separately disposed, the multiple second electrodes correspond one-to-one to the multiple grid holes, and a positive projection of the second electrode on the driving backplane is located within a positive projection of the corresponding grid hole on the driving backplane.

10. The display panel according to claim 9, wherein When multiple first electrodes in the multiple liquid crystal cells are separately disposed, the multiple first electrodes correspond one-to-one to the multiple grid holes, and a positive projection of the first electrode on the driving backplane is located within a positive projection of the corresponding grid hole on the driving backplane.

11. The display panel according to claim 8, wherein, When multiple second electrodes in the multiple liquid crystal cells are connected, the display panel further includes: a shielding electrode disposed as a whole layer between the second electrode and the touch electrode layer, the shielding electrode being insulated from the second electrode and insulated from the touch electrode layer.

12. The display panel according to claim 8, wherein The display panel further includes: a first planarization layer located on a side of the multiple liquid crystal cells away from the driving backplane, the touch electrode layer being located on a side of the first planarization layer away from the driving backplane.

13. The display panel according to claim 12, characterized in that, When multiple first electrodes, multiple second electrodes, and multiple liquid crystal layers in the multiple liquid crystal cells are all separately disposed, the first planarization layer includes: a covering portion located on a side of the touch electrode layer facing the driving backplane, and a spacer portion connected to a side of the covering portion facing the driving backplane, the spacer portion being distributed between two adjacent liquid crystal cells.

14. The display panel according to any one of claims 1-7, 9-13, characterized in that, The dimming module includes: a first dimming functional layer and a second dimming functional layer disposed in a stacked manner, the first dimming functional layer being closer to the driving backplane than the second dimming functional layer; The first dimming functional layer has multiple dimming openings corresponding one-to-one to the multiple light-emitting devices, and a positive projection of the light-emitting device on the driving backplane is located within a positive projection of the corresponding dimming opening on the driving backplane; At least a part of the second dimming functional layer is filled into the multiple dimming openings; Wherein, the refractive index of the second dimming functional layer is greater than the refractive index of the first dimming functional layer.

15. The display panel according to claim 14, wherein An included angle between an inner wall of the dimming opening and a surface of the first dimming functional layer facing the driving backplane is an acute angle.

16. The display panel according to claim 14, wherein The second light-dimming functional layer includes: a light-dimming covering portion covering the first light-dimming functional layer, and a plurality of light-dimming filling portions connected to a side of the light-dimming covering portion facing the driving backplane, the plurality of light-dimming filling portions corresponding to the plurality of light-dimming openings one by one, and the light-dimming filling portions being located in the corresponding light-dimming openings.

17. The display panel according to claim 14, wherein The display panel includes a plurality of the light-dimming modules, and the plurality of light-dimming modules are stacked in a direction away from the driving backplane.

18. The display panel according to claim 17, wherein The display panel further includes: a first black matrix and a second planar layer located between two adjacent light-dimming modules, the second planar layer being located on a side of the first black matrix away from the driving backplane, the first black matrix having a plurality of first light-passing holes corresponding to the plurality of light-dimming openings one by one, and a positive projection of the first light-passing holes on the driving backplane being located within a positive projection of the corresponding light-dimming openings on the driving backplane.

19. The display panel according to any one of claims 1-7, 9-13, 15-18, characterized in that, The display panel further includes: an encapsulation layer, a color filter layer, and a protection cover plate; The encapsulation layer is used for encapsulating the plurality of light-emitting devices; the protection cover plate is located on a side of the liquid crystal cell away from the driving backplane; the color filter layer is located between the encapsulation layer and the light-dimming module, or the color filter layer is located on a side of the protection cover plate away from the driving backplane.

20. A display device, characterized in that, including: a power supply component, and a display panel electrically connected to the power supply component, the display panel including: the display panel according to any one of claims 1 to 19.

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