Display panel and display device

Abstract

The utility model discloses a display panel and a display device, and belongs to the technical field of display. The display panel comprises a driving backboard, a dimming module, a liquid crystal unit and a plurality of light-emitting devices. A dimming module is arranged in a display panel, and divergent light rays emitted by a plurality of light-emitting devices are adjusted into collimated light rays through the dimming module. Meanwhile, a liquid crystal unit is arranged on the side, away from the driving back plate, of the dimming module, when the liquid crystal unit is in a transparent state, the collimated light rays are still collimated light rays after passing through the liquid crystal unit, and when the liquid crystal unit is in a scattering state, the collimated light rays can be adjusted to divergent light rays after passing through the liquid crystal unit. Therefore, the display panel is in a peep-proof display state by controlling the liquid crystal unit to be in a transparent state, and the display panel is in a shared display state by controlling the liquid crystal unit to be in a scattering state, so that the display function of the display panel is effectively enriched.

Description

Technical Field

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

[0002] With the continuous improvement of anti-peeping display panels, they are gradually developing towards high performance, large screens and high technology to meet the different needs of users. Among them, as the viewing angle of the display panel becomes larger and larger, when users travel or go to other public places, they lack privacy and the content on the display panel can be easily seen by people around them, which brings inconvenience to users.

[0003] At present, privacy protection is mainly achieved by attaching a privacy film on 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, thereby playing a role of privacy protection.

[0004] However, the display panel with the anti-peep film attached can only perform anti-peep display, resulting in high limitations on the display panel when displaying images. Utility Model Content

[0005] The embodiments of the present application provide a display panel and a display device, which can solve the problem that the display panel has high limitations when displaying images. The technical solution is as follows:

[0006] In one aspect, a display panel is provided, comprising:

[0007] Driver backplane;

[0008] 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;

[0009] A dimming module located at 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;

[0010] A liquid crystal unit located on a side of the dimming module away from the driving backplane, the liquid crystal unit having a transparent state and a scattering state;

[0011] Wherein, when the liquid crystal unit is in a transparent state, the collimated light remains as 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.

[0012] 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;

[0013] A voltage is applied between the first electrode and the second electrode, so that the liquid crystal layer is in the transparent 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.

[0014] Optionally, the display panel includes a plurality of the liquid crystal units, the plurality of the liquid crystal units correspond one-to-one to the plurality of light-emitting devices, and the orthographic projection of the light-emitting device on the driving backplane is located within the orthographic projection of the corresponding liquid crystal unit on the driving backplane.

[0015] Optionally, the plurality of first electrodes and the plurality of second electrodes in the plurality of liquid crystal units are separately arranged;

[0016] Alternatively, the plurality of first electrodes and the plurality of second electrodes in the plurality of liquid crystal units are connected and arranged;

[0017] Alternatively, one of the plurality of first electrodes and the plurality of second electrodes in the plurality of liquid crystal cells is disposed separately, and the other is disposed connected.

[0018] Optionally, in the case where the plurality of first electrodes in the plurality of liquid crystal units are separately arranged, the plurality of first electrodes are divided into at least two first electrode groups, one of the first electrode groups includes at least two first electrodes, and 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 of the first electrode groups is electrically connected to a corresponding first signal line;

[0019] 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.

[0020] Optionally, in the case where a plurality of the first electrodes in a plurality of the liquid crystal units 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;

[0021] 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 including: multiple second electrodes, and a second connecting electrode located between two adjacent first electrodes, the second electrode being connected to the second connecting electrode.

[0022] 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.

[0023] Optionally, the display panel also includes: a touch electrode layer located on the side of the multiple liquid crystal units away from the driving backplane, the touch electrode layer having a plurality of 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.

[0024] 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.

[0025] Optionally, in the case where 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.

[0026] Optionally, when multiple second electrodes in multiple liquid crystal units are connected, the display panel also includes: a shielding electrode that is located in a whole 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.

[0027] Optionally, the display panel further includes: a first flat 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 flat layer away from the driving backplane.

[0028] Optionally, in the case where the multiple first electrodes, the multiple second electrodes and the multiple liquid crystal layers in the multiple liquid crystal units are all separately arranged, the first flat layer includes: a covering portion located on the side of the touch electrode layer facing the driving backplane, and a spacing portion connected to the covering portion on the side facing the driving backplane, and the spacing portion is distributed between two adjacent liquid crystal units.

[0029] Optionally, the dimming module includes: a first dimming function layer and a second dimming function layer which are stacked, and the first dimming function layer is closer to the driving backplane than the second dimming function layer;

[0030] The first dimming function layer has a plurality of dimming openings corresponding to the plurality of light emitting devices one by one, 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;

[0031] At least a portion of the second dimming function layer is filled into the plurality of dimming openings;

[0032] Wherein, the refractive index of the second dimming functional layer is greater than the refractive index of the first dimming functional layer.

[0033] 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.

[0034] 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.

[0035] Optionally, the display panel includes a plurality of the dimming modules, and the plurality of the dimming modules are stacked in a direction away from the driving backplane.

[0036] 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 being located on the side of the first black matrix away from the driving backplane, the first black matrix having 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 being located within the orthographic projection of the corresponding dimming opening on the driving backplane.

[0037] Optionally, the display panel further includes: an encapsulation layer, a color resist layer and a protective cover plate;

[0038] 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 resistance layer is located between the encapsulation layer and the dimming module, or the color resistance layer is located on the side of the protective cover away from the driving backplane.

[0039] 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.

[0040] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0041] A display panel includes: 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 by 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 to 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, which effectively enriches the display function of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 creative work.

[0043] Figure 1 is a schematic diagram of a film layer structure of a display panel provided in an embodiment of the present application;

[0044] Figure 2 is a schematic diagram of a film layer structure of another display panel provided in an embodiment of the present application;

[0045] Figure 3 is a schematic diagram of a film layer structure of another display panel provided in an embodiment of the present application;

[0046] Figure 4 is a top view of a display panel provided in an embodiment of the present application;

[0047] Figure 5 is a top view of another display panel provided in an embodiment of the present application;

[0048] Figure 6 is a schematic diagram of a film layer structure of another display panel provided in an embodiment of the present application;

[0049] Figure 7 is a top view of another display panel provided in an embodiment of the present application;

[0050] Figure 8 is a schematic diagram of a film layer structure of a display panel provided in another embodiment of the present application;

[0051] Fig. 9 is a schematic diagram of a film layer structure of a display panel provided by another embodiment of the present application;

[0052] Fig.10 is a schematic diagram of a film layer structure of a display panel provided in yet another embodiment of the present application;

[0053] Fig.11 is a top view of a red color film provided in an embodiment of the present application;

[0054] Fig.12 is a top view of a green color film provided in an embodiment of the present application;

[0055] Fig.13 It is a top view of a blue color film provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0057] Please refer to Figure 1 , Figure 1 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 .

[0058] 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.

[0059] The dimming module 300 in the display panel 000 can be located on the side of the plurality of light-emitting devices 200 away from the driving backplane 100. The dimming module 300 can be used to adjust the divergent light emitted by the light-emitting device 200 to 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 the light 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.

[0060] 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. 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 (that is, the direction in which the angle between the user's viewing direction and the normal of the display panel 000 is smaller), and cannot view the image presented by the display panel 000 in the direction of a large viewing angle (that is, the direction in which the angle between the user's viewing direction and the normal of the display panel 000 is larger).

[0061] The liquid crystal unit 400 in the display panel 000 may be located on the side of the dimming module 300 away from the driving backplane 100. Here, the liquid crystal unit 400 may have a transparent state and a scattering state. When the liquid crystal unit 400 is in the 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 the scattering state, the collimated light can be adjusted to a divergent light after passing through the liquid crystal unit 400.

[0062] 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.

[0063] 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, so that 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 large 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.

[0064] In the present application, a dimming module 300 is provided in the display panel 000, and the divergent light emitted by the plurality of light emitting devices 200 can be adjusted to collimated light by the dimming module 300. 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, and 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, which effectively enriches the display function of the display panel 000.

[0065] In summary, a display panel provided in an embodiment of the present application includes: 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 in the present application can not only perform anti-peeping display, but also perform shared display, which effectively enriches the display function of the display panel.

[0066] Please refer to Figure 2 , Figure 2 000 may include: a first electrode 401 and a second electrode 402 stacked and arranged opposite to 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 unit 400 is closer to the driving backplane 100 than the second electrode 402.

[0067] Optionally, the liquid crystal layer 403 in the display panel 000 may include polymer dispersed liquid crystal (English: Polymer Dispersed Liquid Crystal; abbreviated: PDLC).

[0068] Working principle of PDLC: PDLC is a mixture of low-molecular liquid crystal and prepolymer, which undergoes polymerization reaction under certain conditions to form micron-sized liquid crystal particles that are uniformly dispersed in a polymer matrix, and then the dielectric anisotropy of the liquid crystal molecules is used to obtain a material with electro-optical response characteristics, without the need for polarizers and orientation layers. The optical properties of PDLC depend on the degree of matching between the effective refractive index of the liquid crystal molecules and the refractive index of the polymer matrix. Among them, when no voltage is applied to PDLC, the liquid crystal molecules are disorderly arranged. After the incident light is irradiated to PDLC, it is refracted and reflected many times at the interface between the liquid crystal molecules and the polymer matrix, showing a milky white scattering state. When voltage is applied to PDLC, the liquid crystal molecules are arranged along the direction of the electric field. After the incident light is irradiated to PDLC, it will not be reflected or refracted, and can directly pass through PDLC.

[0069] 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 transparent 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, and 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 transparent 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.

[0070] No 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 scattering state. For example, the display panel 000 may apply the same potential to the first electrode 401 and the second electrode 402 at the same time, so that no voltage is applied between the first electrode 401 and the second electrode 402. For example, the display panel 000 may apply a potential of 0 volts to the first electrode 401 and the second electrode 402 at the same time, that is, the first electrode 401 and the second electrode 402 are not applied with a potential at the same time. In this way, a vertical electric field will not be formed between the two, and the liquid crystal molecules in the liquid crystal layer 403 between the two are disorderly arranged, 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 to generate light scattering lines, so that the collimated light can be adjusted to divergent light after passing through the liquid crystal unit 400.

[0071] In this application, if Figure 2 As shown, the display panel 000 may include a plurality of liquid crystal units 400, and the plurality of liquid crystal units 400 may correspond to the plurality of light emitting devices 200 one by one, and the orthographic projection of each light emitting device 200 in the display panel 000 on the driving backplane 100 may be located within the orthographic projection of the corresponding liquid crystal unit 400 on the driving backplane 100. In this way, it can be ensured that the light emitted by the plurality of light emitting devices 200 can be directed to the corresponding liquid crystal unit 400 after passing through the dimming module 300.

[0072] In an embodiment of the present application, in 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 also 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.

[0073] It should be noted that if Figure 2 As shown, the multiple first electrodes 401 in the multiple liquid crystal units 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 units 400 are separately arranged, which means that these second electrodes 402 are all independently arranged block electrodes.

[0074] like Figure 3 As shown, Figure 3It 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.

[0075] Correspondingly, the multiple second electrodes 402 in the multiple liquid crystal units 400 are connected and arranged, which 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 a whole 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 plurality of second electrodes 402 may be integrally formed, which belongs to a planar electrode layer arranged in a whole layer.

[0076] 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 graphic 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.

[0077] 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 allow the display panel 000 to be in the anti-peeping display state or the shared display state at the same time, but also allow a part of the display area of ​​the display panel 000 to be in the anti-peeping display state and another part of the display area to be in the shared display state. To this end, the embodiment of the present application will be schematically described by taking the following two optional implementation methods as examples:

[0078] In the first optional implementation, when it is only necessary to make the entire effective display area of ​​the display panel 000 in the anti-peeping display state or the shared display state at the same time, it is necessary to make each liquid crystal unit 400 in the display panel 000 in the transparent state or the scattering state at the same time. Here, there are many ways to make each liquid crystal unit 400 in the transparent state or the scattering state at the same time, and two possible implementation methods are used as examples for description.

[0079] In the first implementation, when the first electrodes 401 and the second electrodes 402 in the plurality of liquid crystal cells 400 are connected, the same potential can be simultaneously applied to the first planar electrode 500 by applying a potential. Similarly, the same potential can be simultaneously applied to the second electrodes 402 in the plurality of liquid crystal cells 400 by applying a potential to the second planar electrode 600. In this way, by controlling the potential applied to the first planar electrode 500 and the second planar electrode 600, the liquid crystal cells 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; the liquid crystal cells 400 in the display panel 000 can also be simultaneously in a scattering state, so that the entire effective display area of ​​the display panel 000 is simultaneously in a shared state.

[0080] 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.

[0081] For example, the case where the plurality of first electrodes 401 in the plurality of liquid crystal units 400 are separately arranged is taken as an example. Figure 4 As shown, Figure 4 000 is a top view of a display panel provided by an embodiment of the present application. In the display panel 000, a plurality of first electrodes 401 may 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 may be applied to a plurality of first electrodes 401 in a plurality of liquid crystal cells 400 at the same time.

[0082] In this case, when the plurality of second electrodes 402 are separately arranged, these second electrodes 402 may be connected in series or in parallel by another signal line, and by applying a potential to such a signal line, the same potential may be simultaneously applied to the plurality of second electrodes 402 in the plurality of liquid crystal cells 400. When the plurality of second electrodes 402 are connected, the same potential may be simultaneously applied to the plurality of second electrodes 402 by applying a potential to the second planar electrode 600.

[0083] 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; each liquid crystal unit 400 in the display panel 000 can also 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.

[0084] A second optional implementation method is that when not only the entire effective display area of ​​the display panel 000 is in an anti-peeping display state or a shared display state at the same time, but also a part of the display area in the effective display area of ​​the display panel 000 is in an anti-peeping display state and another part of the display area is in a shared display state, it is necessary to make at least some of the liquid crystal units 400 in the display panel 000 in a transparent state at the same time, and / or at least some of the liquid crystal units 400 are in a scattering state at the same time. 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 units 400 is separately arranged. For example, the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal units 400 are all separately arranged, 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.

[0085] For example, Figure 5 As shown, Figure 5 401. It is a top view of another display panel provided by an embodiment of the present application. In the case where the plurality of first electrodes 401 in the plurality of liquid crystal units 400 are separately arranged, the plurality of first electrodes 401 can be divided into at least two first electrode groups 4011. One first electrode group 4011 can include at least two first electrodes 401.

[0086] Here, the display panel 000 may further include: at least two first signal lines L1 corresponding to at least two first electrode groups 4011. Each of the first electrodes 401 in a first electrode group 4011 may be electrically connected to a corresponding first signal line L1. For example, each of the first electrodes 401 in a first electrode group 4011 may be arrayed into multiple rows, each of the first electrodes 401 in a row of first electrodes 401 may be connected in series via a first connection line L3, and ends of the multiple first connection lines L3 may be electrically connected to a corresponding first signal line L1 at the same time. In this way, each of the first electrodes 401 in a first electrode group 4011 may be connected to a corresponding first signal line L1 via multiple first connection lines L3.

[0087] and / or, if Figure 5As shown, in the case where the second electrodes 402 in the plurality of liquid crystal cells 400 are separately arranged, the plurality of second electrodes 402 can be divided into at least two second electrode groups 4021 . Among them, one second electrode group 4021 can include at least two second electrodes 402 .

[0088] Here, the display panel 000 may further include: at least two second signal lines L2 corresponding to at least two second electrode groups 4021. Among them, each second electrode 402 in a second electrode group 4021 can be electrically connected to a corresponding second signal line L2. For example, each second electrode 402 in a second electrode group 4021 can be arrayed into multiple rows, and each second electrode 402 in a row of second electrodes 402 can be connected in series through a second connection line L4, and the ends of the multiple second connection lines L4 can be electrically connected to a corresponding second signal line L2 at the same time. In this way, each second electrode 402 in a second electrode group 4021 can be connected to a corresponding second signal line L2 through multiple second connection lines L4.

[0089] 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 may be the entire effective display area in the display panel 000. For another example, the target display area may 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 an area in the display panel 000 in which a 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.

[0090] For example, by controlling the first signal line L1 corresponding to a certain first electrode group 4011 to access the first electrical signal, and controlling the second signal line L2 corresponding to the second electrode group 4021 to access 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 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 access the second electrical signal, and controlling the second signal line L2 corresponding to the second electrode group 4021 to access the signal that is the same as 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 in a shared display state. For another example, by controlling the first signal line L1 corresponding to each first electrode group 4011 to access the first electrical signal, and controlling the second signal line L2 corresponding to each second electrode group 4021 to access a signal different from the first electrical signal, the entire effective display area of ​​the display panel 000 can be 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.

[0091] 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 be used 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 can also be in a shared display state. In one possible case, the first display area and the second display area can be in an anti-peeping display state at the same time. In another possible case, the first display area and the second display area can be in a shared display state at the same time. In 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.

[0092] In the embodiment of the present application, there are also many possible situations for the shapes of the multiple liquid crystal layers 403 in the multiple liquid crystal units 400. The embodiment of the present application will be described by taking the following two possible situations as examples:

[0093] In the first possible case, if Figure 2As shown, the multiple liquid crystal layers 403 in the multiple liquid crystal units 400 may be separately arranged. In this case, in the process of preparing the multiple liquid crystal layers 403, a layer of PDLC liquid crystal film may be uniformly coated on the panel formed with the multiple first electrodes 401, and then the layer of PDLC liquid crystal film may be cured, and the cured PDLC liquid crystal film may be patterned to obtain the multiple liquid crystal layers 403 that are separately arranged.

[0094] In the second possible case, if Figure 3 As shown, the multiple liquid crystal layers 403 in the multiple liquid crystal units 400 can be connected. In this case, the liquid crystal unit 400 can also 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 be a grid-like film structure, and each liquid crystal layer 403 can be connected to the connecting liquid crystal layer 404 in the 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, which belongs to a film-like structure arranged in a whole layer. In this case, in the preparation process of the multiple liquid crystal layers 403, a layer of PDLC liquid crystal film can be uniformly coated on the panel formed with multiple first electrodes 401, and then the layer of PDLC liquid crystal film can be cured. Here, the PDLC liquid crystal film after the curing treatment includes 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 .

[0095] It should be noted that in the above embodiments, Figure 2 Taking the multiple first electrodes 401, the multiple second electrodes 402 and the multiple liquid crystal layers 403 in the multiple liquid crystal units 400 as an example, Figure 3 The 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 units 400 are connected is used for schematic illustration. In other possible implementations, at least one of the multiple first electrodes 401 and the multiple second electrodes 402 in the multiple liquid crystal units 400 may be separately disposed, and the multiple liquid crystal layers 403 in the multiple liquid crystal units 400 are connected. This embodiment of the application is not limited to this.

[0096] In this application, if Figure 6 and Figure 7 As shown, Figure 6 is a schematic diagram of a film layer structure of another display panel provided in an embodiment of the present application, Figure 7It is a top view of another display panel provided by 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. Among them, the touch electrode layer 700 may have multiple grid holes 700a corresponding to the multiple light-emitting devices 200 one by one, 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. For this reason, 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 hole 700a in the touch electrode layer 700, thereby ensuring that the display panel 000 can display the picture normally.

[0097] 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 by taking the following two exemplary implementations as examples:

[0098] The first exemplary implementation method is as follows: Figure 6 and Figure 7 As shown, in the case where the plurality of second electrodes 402 in the plurality of liquid crystal units 400 are separately arranged, the plurality of second electrodes 402 may correspond to the plurality of grid holes 700a one by one. Here, the orthographic projection of each second electrode 402 on the driving backplane 100 may 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 plurality of second electrodes 402 on the driving backplane 100 may 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 electrode 402 and the touch electrode layer 700 may be reduced, so that the signal loaded on the second electrode 402 does not affect the touch function of the touch electrode layer 700, and thus the thickness of the insulating layer arranged between the second electrode 402 and the touch electrode layer 700 may be reduced.

[0099] Optional, such as Figure 6 and Figure 7As shown, in the case where the plurality of first electrodes 401 in the plurality of liquid crystal units 400 are separately arranged, the plurality of first electrodes 401 may correspond to the plurality of mesh holes 700a one by one. Here, the orthographic projection of each first electrode 401 on the driving backplane 100 may be located within the orthographic projection of the corresponding mesh hole 700a on the driving backplane 100. In this way, the orthographic projections of the plurality of first electrodes 401 on the driving backplane 100 may 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 may be reduced, and the thickness of the insulating layer arranged between the first electrode 401 and the touch electrode layer 700 may be reduced.

[0100] The second exemplary implementation is as follows: Figure 8 As shown, Figure 8 000 is a schematic diagram of a membrane structure of a display panel provided by another embodiment of the present application. In the case where the plurality of second electrodes 402 in the plurality of liquid crystal units 400 are connected, the display panel 000 may further include: a shielding electrode 800 disposed in a whole layer between the second electrode 402 and the touch electrode layer 700. The shielding electrode 800 may be insulated from the second electrode 402 and the touch electrode layer 700. Here, the shielding electrode 800 may be connected to 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 plurality of second electrodes 402 on the driving backplane 100, the signal interference between the second electrode 402 and the touch electrode layer 700 may be shielded by the shielding electrode 800, so that the signal loaded on the second electrode 402 does not affect the touch function of the touch electrode layer 700. In this way, the thickness of the insulating layer disposed between the second electrode 402 and the touch electrode layer 700 may also be reduced.

[0101] In the embodiments of the present application, Figure 6 and Figure 8 As shown, the display panel 000 may further include: a first flat layer 900 located on the side of the plurality of liquid crystal units 400 away from the driving backplane 100, and the touch electrode layer 700 may be located on the side of the first flat layer 900 away from the driving backplane 100. Here, through the above-mentioned first exemplary implementation manner and the above-mentioned second exemplary implementation manner, it is possible to ensure that the thickness of the portion of the first flat layer 900 located on the side of the plurality of liquid crystal units 400 away from the driving backplane 100 is relatively low, so that the overall thickness of the display panel 000 is relatively low.

[0102] like Figure 6As shown, in the case where the plurality of first electrodes 401, the plurality of second electrodes 402 and the plurality of liquid crystal layers 403 in the plurality of liquid crystal units 400 are all separately arranged, the first flat layer 900 may include: a covering portion 900a located on the side of the touch electrode layer 700 facing the driving backplane 100, and a spacer 900b connected to the side of the covering portion 900a facing the driving backplane 100, and the spacer 900b may be distributed between two adjacent liquid crystal units 400. In this way, the first flat layer 900 may protect the side surfaces of the plurality of liquid crystal units 400 and the side away from the driving backplane 100. In addition, through the structural design in the implementation direction of the first example described above, the thickness of the covering portion 900a in the first flat layer 900 may be ensured to be relatively low.

[0103] In this case, the touch electrode layer 700 in the display panel 000 can be directly disposed 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 by the covering portion 900a in the first flat layer 900.

[0104] like Figure 8 As shown, in the case where 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 may be disposed on a side of the first planar layer 900 away from the plurality of liquid crystal cells 400, and the shielding electrode 800 may be insulated from the plurality of second electrodes 402 in the plurality of liquid crystal cells 400 by the first planar layer 900. Here, by providing the shielding electrode 800, the overall thickness of the first planar layer 900 may be kept low.

[0105] 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 , and the shielding electrode 800 may be insulated from the touch electrode layer 700 by the first buffer layer 1000 .

[0106] In the embodiments of the present application, Fig. 9 As shown, Fig. 9 This is a schematic diagram of a film layer structure of a display panel provided in 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 that are stacked, and the first dimming function layer 301 may be closer to the driving backplane 100 than the second dimming function layer 302.

[0107] The first dimming function layer 301 in the display panel 000 may have a plurality of dimming openings 301a corresponding 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.

[0108] At least part of the second dimming function 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 function layer 302 can be greater than the refractive index of the first dimming function layer 301. In this way, the light emitted by the light emitting device 200 can be directed toward the second dimming function layer 302. Among the light rays incident into the second dimming function layer 302, the light rays with a small viewing angle (i.e., the angle between the emission direction and the normal of the display panel 000 is small) can be directly transmitted through the second dimming function layer 302 and then emitted, and the light rays with a large viewing angle (i.e., the angle between the emission direction and the normal of the display panel 000 is large) 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 reflected light has a smaller angle with the normal of the display panel when it is emitted from the second dimming function layer 302, thereby ensuring that the divergent light emitted by the light-emitting device 200 can be adjusted to collimated light by the dimming module.

[0109] In the embodiments of the present application, Fig. 9 As shown, the angle α between the inner wall of the dimming opening 301a and the side of the first dimming functional layer 301 facing the driving backplane 100 is an acute angle. In this case, after the light of the light emitting device 200 with a large viewing angle is directed toward the inner wall of the dimming opening 301a and reflected by the inner wall of the dimming opening 301a, the reflected light can be emitted from the side of the second dimming functional layer 302 away from the driving backplane 100, and the angle between the emission direction of the light 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 small.

[0110] In this application, if Fig. 9 As shown, the second dimming function layer 302 in the display panel 000 may include: a dimming covering portion 3021 covering the first dimming function layer 301, and a plurality of dimming filling portions 3022 connected to the side of the dimming covering portion 3021 facing the driving backplane 100. Here, the plurality of dimming filling portions 3022 may correspond to the plurality of dimming openings 301a one by one, and each dimming filling portion 3022 may be located in the corresponding dimming opening 301a.

[0111] 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, in the process of preparing the dimming module 300, the first dimming function layer 301 can be formed first, and the first dimming function layer 301 can be patterned to form a plurality of dimming openings 301a in the first dimming function layer 301, and then a second dimming function layer 302 covering the entire layer can be formed on the first dimming function layer 301 having the plurality of dimming openings 301a. The portion of the second dimming function layer 302 extending into the dimming opening 301a is the dimming filling portion 3022, and the portion of the second dimming function layer 302 located on the first dimming function layer 301 is the dimming covering portion 3021.

[0112] Optional, please refer to Fig. 9 The display panel 000 may include a plurality of dimming modules 300, and the plurality of dimming modules 300 may be stacked in a direction away from the driving backplane 100. In this case, each dimming module 300 can adjust the incident light of a large viewing angle to a light of a small viewing angle. Through the cooperation of the plurality of 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 plurality of stacked dimming modules 300.

[0113] In the embodiments of the present application, Fig. 9 As shown, 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 .

[0114] Among them, the first black matrix 1100 may have a plurality of first light holes 1100a corresponding to the plurality of dimming openings 301a one by one, and the orthographic projection of each first light hole 1100a on the driving backplane 100 may be located within the orthographic projection of the corresponding dimming opening 301a on the driving backplane 100. The first black matrix 1100 may be made of BM material. Since the BM material has good light absorption, when the first black matrix 1100 is made of BM material, the first black matrix 1100 may block the light of a large viewing angle emitted from the edge of the dimming opening 301a, so as to further improve the collimation of the light adjusted after passing through the dimming module 300.

[0115] Here, the second flat layer 1200 in the display panel 000 may be located on the side of the first black matrix 1100 away from the driving backplane. Since the second flat layer 1200 has good flatness, the side of the second flat layer 1200 away from the driving backplane 100 can be ensured to have good flatness, so that the dimming module 300 formed on the second flat layer 1200 has high stability.

[0116] In this application, if Fig. 9 As shown, the display panel 000 may further include: an encapsulation layer 1300 , a color resist layer 1400 and a protective cover plate 1500 .

[0117] The encapsulation layer 1300 in the display panel 000 may be located on the side of the light emitting device 200 away from the driving backplane 100. Here, 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.

[0118] The protective cover plate 1500 in the display panel 000 may be located on the side of the liquid crystal unit 400 away from the driving backplane 100. For example, the protective cover plate 1500 in the display panel 000 may be located on the side of the touch electrode layer 700 away from the driving backplane 100. For example, an adhesive cover layer 1600 may be provided between the touch electrode layer 700 and the protective cover plate 1500, and the protective cover plate 1500 may be bonded to the side of the touch electrode layer 700 away from the driving backplane 100 through the cover layer 1600. Here, the front side of the display panel 000 may be protected by the protective cover plate 1500 to ensure that after the front side of the display panel 000 is subjected to an impact force, the protective cover plate 1500 can bear the impact force to reduce the probability of the display panel 000 being broken.

[0119] In one possible implementation, Fig. 9 As shown, 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 flat layer 1800, the second buffer layer 1700 may be disposed on a side of the encapsulation layer 1300 away from the driving backplane 100, the color resist layer 1400 may be disposed on a side of the second buffer layer 1700 away from the driving backplane 100, and the third flat layer 1800 may be disposed between the color resist layer 1400 and the dimming module 300.

[0120] In another possible implementation, Fig.10 As shown, Fig.101 is a schematic diagram of a film 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 plate 1500 away from the driving backplane 100. In this case, since the signal lines connected to the first electrode 401 and the second electrode 402 and the touch electrode layer 700 in the liquid crystal unit 400 need to be connected to the driving backplane 100, when the color resist layer 1400 is located on the side of the protective cover plate 1500 away from the driving backplane 100, it can be ensured that the vertical distance between the first electrode 401 and the second electrode 402 in the liquid crystal unit 400 and the touch electrode layer 700 and the driving backplane 100 is small, and further, it can be ensured that the step difference of the signal lines connected to the first electrode 401 and the second electrode 402 and the touch electrode layer 700 in the liquid crystal unit 400 is small, so that these signal lines can be stably connected to the driving backplane 100 and are not easy to break, which effectively improves the manufacturing yield of the display panel 000.

[0121] In this case, the display panel 000 may further include a second buffer layer 1700 disposed on the side of the encapsulation layer 1300 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 away from the substrate 100 .

[0122] Optionally, the color resist layer 1400 in the display panel 000 may include: a red color film R, a green color film G, and a blue color film 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. Fig.11 , Fig.12 and Fig.13 , Fig.11 is a top view of a red color film provided in an embodiment of the present application, Fig.12 is a top view of a green color film provided in an embodiment of the present application, Fig.13 : is a top view of a blue color film provided in an embodiment of the present application. The red color film R can at least cover the red sub-pixel area in the display panel 000. Here, the red color film R can also cover the area between two adjacent sub-pixel areas, and the red color film R is located in the green sub-pixel area and has a first hollow area U1, and is located in the blue sub-pixel area and has a second hollow area U2. The green color film G may include: a block structure located in the first hollow area U1, and the green color film G may cover the green sub-pixel area in the first hollow area U1. The blue color film B may include: a block structure located in the second hollow area U2, and the blue color film B may cover the blue sub-pixel area in the second hollow area U2.

[0123] In this case, the color resist layer 1400 in the display panel 000 can be ensured to be similar to a whole layer distribution structure, so that at least part of the ambient light directed to the display panel 000 can be absorbed by the color resist layer 1400. Therefore, the reflectivity of the ambient light of the display panel 000 can be effectively reduced by the color resist layer 1400, so that the display effect of the display panel 000 is better.

[0124] Optional, such as Fig. 9 As shown, the display panel 000 may further include a second black matrix 1900 located between two adjacent sub-pixel regions, and the second black matrix 1900 may have a plurality of second light-through holes 1900a corresponding to the plurality of dimming openings 301a one by one, and the orthographic projection of the second light-through holes 1900a on the driving backplane 100 is located within the orthographic projection of the corresponding dimming opening 301a on the driving backplane 100. The second black matrix 1900 may be made of BM material. Since the BM material has good light absorption, by setting the second black matrix 1900, the color crosstalk phenomenon in the display panel 000 can be effectively reduced, and the display effect of the display panel 000 can be further improved.

[0125] In summary, a display panel provided in an embodiment of the present application includes: 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 in the present application can not only perform anti-peeping display, but also perform shared display, which effectively enriches the display function of the display panel.

[0126] The embodiment of the present application also provides a display device, which can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, etc. The display device may include a power supply component and a display panel electrically connected to the power supply component. The display panel may be the display panel in the above embodiment.

[0127] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is also 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 is 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 is also understood that when a layer or element is referred to as being "between" two layers or two elements, it may be the only layer between the two layers or two elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0128] In the present 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 otherwise clearly defined.

[0129] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: include: Driver backplane; A plurality of light emitting devices located on one side of the driving backplane, wherein the light emitting devices are electrically connected to the driving backplane; A dimming module located at 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; A liquid crystal unit located on a side of the dimming module away from the driving backplane, the liquid crystal unit having a transparent state and a scattering state; Wherein, when the liquid crystal unit is in a transparent state, the collimated light remains as 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.

2. The display panel according to claim 1, characterized in that: The liquid crystal unit comprises: 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 comprises: polymer dispersed liquid crystal molecules; A voltage is applied between the first electrode and the second electrode, so that the liquid crystal layer is in the transparent 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.

3. The display panel according to claim 2, characterized in that: The display panel includes a plurality of the liquid crystal units, and the plurality of the liquid crystal units correspond one-to-one to the plurality of light-emitting devices. 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.

4. The display panel according to claim 3, characterized in that: The plurality of first electrodes and the plurality of second electrodes in the plurality of liquid crystal cells are all separately arranged; Alternatively, the plurality of first electrodes and the plurality of second electrodes in the plurality of liquid crystal units are connected and arranged; Alternatively, one of the plurality of first electrodes and the plurality of second electrodes in the plurality of liquid crystal cells is disposed separately, and the other is disposed connected.

5. The display panel according to claim 4, characterized in that: In the case where the plurality of first electrodes in the plurality of liquid crystal units are separately arranged, the plurality of first electrodes are divided into at least two first electrode groups, one of the first electrode groups includes at least two first electrodes, and 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 of the first electrode groups is electrically connected to a corresponding first signal line; 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.

6. The display panel according to claim 4, characterized in that: In the case where a plurality of the first electrodes in a plurality of the liquid crystal units 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; 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 including: multiple second electrodes, and a second connecting electrode located between two adjacent first electrodes, the second electrode being connected to the second connecting electrode.

7. The display panel according to claim 3, characterized in that: The plurality of liquid crystal layers in the plurality of liquid crystal units are separately arranged; or, the plurality of liquid crystal layers in the plurality of liquid crystal units are connected.

8. The display panel according to any one of claims 3 to 7, characterized in that: The display panel also includes: a touch electrode layer located on the side of the multiple liquid crystal units away from the driving backplane, the touch electrode layer has a plurality of 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.

9. The display panel according to claim 8, characterized in that: When the plurality of second electrodes in the plurality of liquid crystal units are separately arranged, the plurality of second electrodes correspond one-to-one to the plurality of 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.

10. The display panel according to claim 9, characterized in that: 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.

11. The display panel according to claim 8, characterized in that: In the case where multiple second electrodes in multiple liquid crystal units are connected, the display panel also includes: a shielding electrode that is located in a whole layer between the second electrode and the touch electrode layer, and the shielding electrode is insulated from the second electrode and the touch electrode layer.

12. The display panel according to claim 8, characterized in that: The display panel further includes: a first flat 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 flat layer away from the driving backplane.

13. The display panel according to claim 12, characterized in that: In the case where the plurality of first electrodes, the plurality of second electrodes and the plurality of liquid crystal layers in the plurality of liquid crystal units are all separately arranged, the first flat layer includes: a covering portion located on the side of the touch electrode layer facing the driving backplane, and a spacing portion connected to the covering portion on the side facing the driving backplane, and the spacing portion is distributed between two adjacent liquid crystal units.

14. The display panel according to any one of claims 1 to 7 and 9 to 13, characterized in that: The dimming module comprises: a first dimming function layer and a second dimming function layer which are stacked, wherein the first dimming function layer is closer to the driving backplane than the second dimming function layer; The first dimming function layer has a plurality of dimming openings corresponding to the plurality of light emitting devices one by one, 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; At least a portion of the second dimming function layer is filled into the plurality of 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, characterized in that: The angle between the inner wall of the dimming opening and the surface of the first dimming functional layer facing the driving backplane is an acute angle.

16. The display panel according to claim 14, characterized in that: 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.

17. The display panel according to claim 14, characterized in that: 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.

18. The display panel according to claim 17, characterized in that: 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.

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 resist layer and a protective cover plate; 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 resistance layer is located between the encapsulation layer and the dimming module, or the color resistance layer is located on the side of the protective cover away from the driving backplane.

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

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