Display panel, driving method thereof and display device

Abstract

The display panel comprises a driving backboard, a pixel defining layer, a plurality of light-emitting devices and a touch line, the pixel defining layer is located on one side of the driving backboard, and a plurality of openings are formed in the pixel defining layer; the light-emitting device comprises a normal element and at least one peep-proof element, and the peep-proof element and the normal element are located in the different openings respectively; the touch control line is located on the side, away from the driving backboard, of the light emitting device and comprises a first wire and a second wire, and the orthographic projection of the first wire on the driving backboard is located around the orthographic projection of the opening where the peep-proof element is located on the driving backboard. The distance between the orthographic projection of the second wire and the opening where the peep-proof element is located on the driving backboard is greater than the distance between the orthographic projection of the first wire and the orthographic projection of the opening where the peep-proof element is located on the driving backboard; the line width of at least a local area of the first wire is larger than that of the second wire.

Description

Display panel, driving method thereof, and display device Technical Field

[0001] The embodiments of the present disclosure belong to the field of display technology, and particularly relate to a display panel, a driving method thereof, and a display device. Background Art

[0002] OLED (Organic Light-Emitting Diode) displays have attracted widespread attention due to their advantages such as self-luminescence, low power consumption, lightness, flexibility, brilliant colors, high contrast, and fast response rate.

[0003] Summary of the Invention

[0004] In a first aspect, an embodiment of the present disclosure provides a display panel, comprising a driving backplane, a pixel defining layer, a plurality of light-emitting devices, and touch lines.

[0005] The pixel defining layer is located on one side of the driving backplane, and a plurality of openings are formed in the pixel defining layer;

[0006] The light emitting device includes a normal element and at least one anti-peeping element, wherein the anti-peeping element and the normal element are respectively located in different openings;

[0007] The touch line is located on a side of the light emitting device away from the driving backplane,

[0008] The touch line includes a first line and a second line, the orthographic projection of the first line on the driving backplane is located around the orthographic projection of the opening where the privacy protection element is located on the driving backplane,

[0009] The distance between the orthographic projection of the second trace on the driving backplane and the orthographic projection of the opening where the privacy protection element is located on the driving backplane is greater than the distance between the orthographic projection of the first trace on the driving backplane and the orthographic projection of the opening where the privacy protection element is located on the driving backplane;

[0010] The line width of at least a partial area of ​​the first routing line is greater than the line width of the second routing line.

[0011] In some embodiments, the orthographic projection of the first trace on the driving backplane forms a continuous closed shape.

[0012] In some embodiments, the orthographic projection of the first trace on the driving backplane is disconnected in an area between the orthographic projections of some adjacent anti-peeping elements and the normal elements on the driving backplane;

[0013] The display panel further includes a dummy trace located on a side of the light-emitting device facing away from the driving backplane, wherein an orthographic projection of the dummy trace on the driving backplane is located between orthographic projections of some adjacent anti-peeping elements and the normal elements on the driving backplane, and the orthographic projection of the dummy trace on the driving backplane is located in a disconnected area of ​​an orthographic projection of the first trace on the driving backplane;

[0014] The distance between the orthographic projection of the dummy line on the driving backplane and the orthographic projection of the opening where the privacy protection element is located on the driving backplane is smaller than the distance between the orthographic projection of the second line on the driving backplane and the orthographic projection of the opening where the privacy protection element is located on the driving backplane;

[0015] The line width of the dummy line is greater than the line width of the second line;

[0016] The dummy wiring and the first wiring are insulated from each other, and the orthographic projections of the dummy wiring and the first wiring on the driving backplane form a continuous closed shape.

[0017] In some embodiments, the privacy protection element includes a first anode, a first light-emitting functional layer, and a first cathode.

[0018] The first anode, the first light-emitting functional layer and the first cathode are stacked in sequence away from the driving backplane;

[0019] The normal element includes a second anode, a second light-emitting functional layer and a second cathode,

[0020] The second anode, the second light-emitting functional layer and the second cathode are stacked in sequence away from the driving backplane;

[0021] The orthographic projections of the first wiring and the dummy wiring on the driving backplane do not overlap with the orthographic projection of the second light-emitting functional layer on the driving backplane.

[0022] In some embodiments, the orthographic projections of the first routing line and the dummy routing line on the driving backplane overlap with four edges of the orthographic projection of the first light-emitting functional layer on the driving backplane.

[0023] In some embodiments, the orthographic projections of the first routing line and the dummy routing line on the driving backplane do not overlap with the orthographic projection of the first light-emitting functional layer on the driving backplane.

[0024] In some embodiments, the anti-peeping element is adjacent to the normal element.

[0025] The calculation formula for the line width M of the first line or the dummy line located between the adjacent anti-peeping element and the normal element is: M=C+xy; x=BAz; y=(A+z) / tan(90°-θ / 2)-B;

[0026] Wherein, A is the distance between a surface of the first wiring or the dummy wiring on a side close to the privacy protection element and a surface of the privacy protection element on a side away from the driving backplane;

[0027] B is the cross-sectional width of the opening where the privacy protection element is located on a first cross-sectional area perpendicular to the driving back plate; the first cross-sectional area is parallel to the arrangement direction of the privacy protection element and the normal elements;

[0028] C is a cross-sectional width of the pixel defining layer located between the adjacent privacy protection element and the normal element on the first cross-section, the cross-sectional width of the pixel defining layer being the cross-sectional width at a position flush with the surface of the privacy protection element facing away from the driving backplane;

[0029] x is the distance between an edge of the first line or the dummy line close to the privacy protection element and an edge of the first light-emitting functional layer close to the first line or the dummy line on the first cross section;

[0030] y is the distance between an edge of the first line or the dummy line, which is away from the privacy protection element, and an edge of the second light-emitting functional layer, which is close to the first line or the dummy line, on the first cross section;

[0031] z is the thickness of the first trace or the dummy trace;

[0032] θ is the visible angle of the normal element on the first cross section.

[0033] In some embodiments, the two privacy protection elements are adjacent to each other, and the two adjacent privacy protection elements are respectively a first privacy protection element and a second privacy protection element.

[0034] The calculation formula for the line width N of the first trace located between the first privacy protection element and the second privacy protection element and close to the opening where the first privacy protection element is located is: N = C + xy; x = BAz; y = (A + z) / tan (90° - α / 2) - B;

[0035] Wherein, A is the distance between a surface of the first trace close to the first privacy protection element and a surface of the first privacy protection element facing away from the driving backplane;

[0036] B is the cross-sectional width of the opening where the first privacy protection element is located on a second cross-sectional area perpendicular to the driving back plate; the second cross-sectional area is parallel to the arrangement direction of the first privacy protection element and the second privacy protection element;

[0037] C is the cross-sectional width of the pixel defining layer located between the first privacy protection element and the second privacy protection element at the second cross-sectional area, the cross-sectional width of the pixel defining layer being the cross-sectional width at a position flush with the surface of the first privacy protection element facing away from the driving backplane;

[0038] x is the distance between an edge of one end of the first wiring close to the first privacy protection element and an edge of one end of the first light-emitting functional layer of the first privacy protection element close to the first wiring on the second cross section;

[0039] y is the distance between an edge of the first wiring farther from the first privacy protection element and an edge of the first light-emitting functional layer of the second privacy protection element closer to the first wiring on the second cross-section;

[0040] z is the thickness of the first trace;

[0041] α is the visible angle of the second privacy protection element on the second cross section.

[0042] In some embodiments, the anti-peeping element is adjacent to the normal element.

[0043] The calculation formula for the line width M of the first trace or the dummy trace located between the adjacent anti-peeping element and the normal element is: M=Cxy; x=A+zB; y=(A+z) / tan(90°-θ / 2)-B;

[0044] Wherein, A is the distance between a surface of the first wiring or the dummy wiring on a side close to the privacy protection element and a surface of the privacy protection element on a side away from the driving backplane;

[0045] B is the cross-sectional width of the opening where the privacy protection element is located on a first cross-sectional area perpendicular to the driving back plate; the first cross-sectional area is parallel to the arrangement direction of the privacy protection element and the normal elements;

[0046] C is a cross-sectional width of the pixel defining layer located between the adjacent privacy protection element and the normal element on the first cross-section, the cross-sectional width of the pixel defining layer being the cross-sectional width at a position flush with the surface of the privacy protection element facing away from the driving backplane;

[0047] x is the distance between an edge of the first line or the dummy line close to the privacy protection element and an edge of the first light-emitting functional layer close to the first line or the dummy line on the first cross section;

[0048] y is the distance between an edge of the first line or the dummy line, which is away from the privacy protection element, and an edge of the second light-emitting functional layer, which is close to the first line or the dummy line, on the first cross section;

[0049] z is the thickness of the first trace or the dummy trace;

[0050] θ is the visible angle of the normal element on the first cross section.

[0051] In some embodiments, the two privacy protection elements are adjacent to each other, and the two adjacent privacy protection elements are respectively a first privacy protection element and a second privacy protection element.

[0052] The calculation formula for the line width N of the first trace located between the first privacy protection element and the second privacy protection element and close to the opening where the first privacy protection element is located is: N = Cxy; x = A + zB; y = (A + z) / tan (90° - α / 2) - B;

[0053] Wherein, A is the distance between a surface of the first trace close to the first privacy protection element and a surface of the first privacy protection element facing away from the driving backplane;

[0054] B is the cross-sectional width of the opening where the first privacy protection element is located on a second cross-sectional area perpendicular to the driving back plate; the second cross-sectional area is parallel to the arrangement direction of the first privacy protection element and the second privacy protection element;

[0055] C is the cross-sectional width of the pixel defining layer located between the first privacy protection element and the second privacy protection element at the second cross-sectional area, the cross-sectional width of the pixel defining layer being the cross-sectional width at a position flush with the surface of the first privacy protection element facing away from the driving backplane;

[0056] x is the distance between an edge of one end of the first wiring close to the first privacy protection element and an edge of one end of the first light-emitting functional layer of the first privacy protection element close to the first wiring on the second cross section;

[0057] y is the distance between an edge of the first wiring farther from the first privacy protection element and an edge of the first light-emitting functional layer of the second privacy protection element closer to the first wiring on the second cross-section;

[0058] z is the thickness of the first trace;

[0059] α is the visible angle of the second privacy protection element on the second cross section.

[0060] In some embodiments, θ ranges from 120° to 160°.

[0061] In some embodiments, α ranges from 40° to 100°.

[0062] In some embodiments, an encapsulation layer and a light shielding layer are also included.

[0063] The encapsulation layer is located on a side of the light-emitting device away from the driving backplane, and is located on a side of the touch line and the dummy line close to the driving backplane, and the encapsulation layer is used to encapsulate the light-emitting device;

[0064] The light shielding layer is located on a side of the touch line and the dummy line away from the driving backplane.

[0065] Alternatively, the light shielding layer is located on a side of the touch line and the dummy line close to the driving backplane, and is located on a side of the encapsulation layer away from the driving backplane;

[0066] Alternatively, the light shielding layer is located on a side of the encapsulation layer close to the driving backplane, and is located on a side of the light emitting device away from the driving backplane;

[0067] The orthographic projection of the light-shielding layer on the driving backplane covers at least the first routing line between the orthographic projections of adjacent anti-peeping elements on the driving backplane and the first routing line between the orthographic projections of adjacent anti-peeping elements and the normal elements on the driving backplane, or the orthographic projection of the dummy routing line on the driving backplane.

[0068] In some embodiments, the light shielding layer is made of a black organic material.

[0069] In some embodiments, a plurality of data lines are further included.

[0070] The plurality of light emitting devices are arranged in an array,

[0071] Each column of the light-emitting devices is connected to one of the data lines;

[0072] In the light emitting device, the anti-peeping element and the normal element are arranged along a column direction of the array, and the anti-peeping element and the normal element are electrically connected to the same data line.

[0073] In some embodiments, in the array of light-emitting devices, odd-numbered rows are the anti-peeping elements, and even-numbered rows are the normal elements;

[0074] Alternatively, in the array, odd-numbered rows are normal elements, and even-numbered rows are privacy protection elements;

[0075] Along the column direction of the array, the anti-peeping elements and the normal elements are alternately distributed in sequence.

[0076] In some embodiments, the plurality of light emitting devices includes a plurality of red light emitting devices, a plurality of green light emitting devices, and a plurality of blue light emitting devices.

[0077] The red light emitting device includes a red anti-peeping element and a red normal element;

[0078] The green light emitting device includes a green anti-peeping element and a green normal element;

[0079] The blue light emitting device includes a blue anti-peeping element and a blue normal element;

[0080] The slope angle of the pixel defining layer at the opening where the green privacy protection element is located is greater than the slope angle of the pixel defining layer at the opening where the red privacy protection element is located, and is greater than the slope angle of the pixel defining layer at the opening where the blue privacy protection element is located.

[0081] In some embodiments, the red normal element, the green normal element, and the blue normal element have the same slope angle of the opening of the pixel defining layer.

[0082] In some embodiments, the driving backplane includes a plurality of pixel circuits,

[0083] One of the light-emitting devices is electrically connected to one of the pixel circuits;

[0084] The pixel circuit includes a driving transistor, and the driving transistor is electrically connected to the normal element and the anti-peeping element of the light-emitting device.

[0085] In a second aspect, an embodiment of the present disclosure further provides a display device, which includes the above-mentioned display panel.

[0086] In a third aspect, an embodiment of the present disclosure further provides a method for driving a display panel, which includes driving a backplane to drive a normal element and an anti-peeping element in a light-emitting device to emit light when the display panel is displaying normally;

[0087] When the display panel is in anti-peeping display mode, the driving backplane drives the anti-peeping element in the light-emitting device to emit light. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] The accompanying drawings are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. The above and other features and advantages will become more apparent to those skilled in the art by describing the detailed exemplary embodiments with reference to the accompanying drawings, in which:

[0089] FIG1 is a schematic diagram showing the shared state and the anti-peeping state of a display product in the disclosed technology.

[0090] FIG2 a is a schematic top view of the structure of a display panel according to an embodiment of the present disclosure.

[0091] FIG. 2 b is a schematic top view of the structure of another display panel according to an embodiment of the present disclosure.

[0092] FIG. 2 c is a schematic cross-sectional view of the structure along the AA section line in FIG. 2 a .

[0093] FIG2 d is a schematic cross-sectional view of the structure along the BB section line in FIG2 b .

[0094] FIG2e is a schematic cross-sectional view of the structure along the CC cutting line in FIG2a.

[0095] FIG2f is a schematic cross-sectional view of the structure along the DD section line in FIG2b.

[0096] FIG2g is a schematic diagram of the luminous angle ranges of the normal element and the anti-peeping element in an embodiment of the present disclosure.

[0097] FIG2h is a schematic cross-sectional view of another structure along the AA section line in FIG2a.

[0098] FIG. 3 a is a schematic diagram showing the distribution of touch lines on a display panel according to an embodiment of the present disclosure.

[0099] FIG3 b is a schematic cross-sectional view of the local structure along the EE section line in FIG3 a .

[0100] FIG3 c is an enlarged microscopic top view of the touch line in the embodiment of the present disclosure. DETAILED DESCRIPTION

[0101] To enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, a display panel, a driving method thereof, and a display device provided by the embodiments of the present disclosure are further described in detail below with reference to the accompanying drawings and specific implementation plans.

[0102] The embodiments of the present disclosure will be described more fully below with reference to the accompanying drawings, but the illustrated embodiments may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully enable those skilled in the art to understand the scope of this disclosure.

[0103] The embodiments of the present disclosure are not limited to the embodiments shown in the drawings, but include modifications of the configurations formed based on the manufacturing process. Therefore, the regions illustrated in the drawings are schematic in nature, and the shapes of the regions shown in the drawings illustrate specific shapes of the regions, but are not intended to be limiting.

[0104] In the related art, referring to FIG1 , there is a schematic diagram of the shared state and the anti-peeping state of a display product in the related art; as more and more display applications are developed, we like to share information with others, but in special circumstances we also hope to have privacy, such as when processing confidential information, the information is easily seen by others nearby; for example, when entering personal information on a mobile phone, the personal information is also easily seen by others; therefore, the demand trend of display products is gradually becoming that they can switch between the shared state and the anti-peeping state when displaying.

[0105] Based on the demand for display products to switch between a shared state and an anti-peeping state during display, related technologies include using an external anti-peeping film on the display screen. When privacy is required, the anti-peeping film is manually hung in front of the display screen, and when it is not needed, the anti-peeping film is manually removed. Related technologies also include setting a liquid crystal layer on the display side of the display screen, and limiting the light output angle of the display screen by steering the liquid crystal in the liquid crystal layer.

[0106] Manually hanging the anti-peep film is more troublesome to operate, and it is impossible to achieve flexible and convenient switching between the shared state and the anti-peep state; setting a liquid crystal layer on the display side of the display increases the thickness of the display and cannot well meet user needs.

[0107] In order to solve the problem that the shared state and anti-peep state switching of the display product cannot be realized conveniently and quickly in the disclosed technology, the present embodiment provides a display panel, referring to Figure 2a, which is a schematic top view of the structure of a display panel in the disclosed embodiment; Figure 2b is a schematic top view of the structure of another display panel in the disclosed embodiment; Figure 2c is a schematic cross-sectional view of a structure along the AA section line in Figure 2a; Figure 2d is a schematic cross-sectional view of the structure along the BB section line in Figure 2b; Figure 2e is a schematic cross-sectional view of the structure along the CC section line in Figure 2a; Figure 2f is a schematic cross-sectional view of the structure along the DD section line in Figure 2b; wherein, it includes a driving backplane 1, a pixel defining layer 2, a plurality of light-emitting devices 3 and a touch line 4, the pixel defining layer 2 is located on one side of the driving backplane 1, and a pixel defining layer 2 is opened There are multiple openings; the light-emitting device 3 includes a normal element 31 and at least one anti-peeping element 32, and the anti-peeping element 32 and the normal element 31 are respectively located in different openings; the touch line 4 is located on the side of the light-emitting device 3 away from the driving backplane 1, and the touch line 4 includes a first line 41 and a second line 42, the orthographic projection of the first line 41 on the driving backplane 1 is located around the orthographic projection of the opening where the anti-peeping element 32 is located on the driving backplane 1, and the distance between the orthographic projection of the second line 42 on the driving backplane 1 and the orthographic projection of the opening where the anti-peeping element 32 is located on the driving backplane 1 is greater than the distance between the orthographic projection of the first line 41 on the driving backplane 1 and the orthographic projection of the opening where the anti-peeping element 32 is located on the driving backplane 1; the line width of at least a local area of ​​the first line 41 is greater than the line width of the second line 42.

[0108] The orthographic projection of the first trace 41 on the driver backplane 1 is closest to the orthographic projection of the opening where the peek element 32 is located on the driver backplane 1. In this embodiment, the width of the entire first trace 41 is greater than the width of the second trace 42.

[0109] In some embodiments, referring to FIG. 2g , which is a schematic diagram of the light-emitting angle ranges of the normal and privacy-preventing elements in the disclosed embodiments, the normal element 31 refers to an angular range of light emitted from its light-emitting surface of 120° to 160°. That is, assuming that the light-emitting surface (a plane) of the normal element 31 emits light at an angle of 120°, the normal element 31 emits light within an angle range of 30° to 150° with respect to its light-emitting surface. The privacy-preventing element 32 refers to an angular range of light emitted from its light-emitting surface of 40° to 50°. That is, assuming that the light-emitting surface (a plane) of the privacy-preventing element 32 emits light at an angle of 30°, the privacy-preventing element 32 emits light within an angle range of 75° to 105° with respect to its light-emitting surface.

[0110] In some embodiments, both the normal element 31 and the anti-peeping element 32 are OLED (Organic Light-Emitting Diode) devices.

[0111] In some embodiments, referring to Figures 2a, 2b, and 2c, a light-emitting device 3 is divided into two, that is, a light-emitting device 3 is split into a normal element 31 and a peep-proof element 32. The peep-proof element 32 includes a first anode 321, a first light-emitting functional layer 322, and a first cathode 323, which are stacked in sequence away from the driving backplane 1; the normal element 31 includes a second anode 311, a second light-emitting functional layer 312, and a second cathode 313, which are stacked in sequence away from the driving backplane 1.

[0112] In some embodiments, referring to FIG3a , a schematic diagram of the distribution of touch lines on a display panel in an embodiment of the present disclosure is shown; wherein, the touch lines 4 include longitudinal touch drive lines TX and transverse touch sensing lines RX. The longitudinal touch drive lines TX and the transverse touch sensing lines RX intersect in space, forming mutual capacitance at the spatial intersection point. By detecting the mutual capacitance value between the touch drive lines TX and the touch sensing lines RX, touch control of the display panel is achieved.

[0113] In some embodiments, referring to FIG3 b , which is a schematic cross-sectional view of a partial structure along the EE section line in FIG3 a , the touch line 4 further includes a bridge portion TXR located at the intersection of the touch drive line TX and the touch sensing line RX. The touch drive line TX and the touch sensing line RX are located on the same layer, and the bridge portion TXR is located on the side of the touch drive line TX and the touch sensing line RX facing away from the driver backplane 1 or on the side close to the driver backplane 1 . An insulating layer JY is provided between the bridge portion TXR and the touch drive line TX and the touch sensing line RX. The bridge portion TXR is connected to the two disconnected ends of the touch sensing line RX disconnected at the intersection through two vias provided in the insulating layer JY. In this way, a spatial intersection of the touch drive line TX and the touch sensing line RX is achieved.

[0114] In some embodiments, refer to Figure 3c, which is an enlarged microscopic top view of the touch lines in the disclosed embodiments; the microscopic shapes of the touch drive lines TX, the touch sensing lines RX, and the bridge portion TXR are all grid-shaped. The first line 41 is a single line among the touch drive lines TX, the touch sensing lines RX, and the bridge portion TXR, whose orthographic projection on the driver backplane 1 is closest to the opening of the privacy protection element 32. The second line 42 is the other grid-shaped lines among the touch drive lines TX, the touch sensing lines RX, and the bridge portion TXR, whose orthographic projection on the driver backplane 1 is farther from the opening of the privacy protection element 32 than the first line 41.

[0115] In some embodiments, referring to FIG3c , the orthographic projection of the first trace 41 on the driver backplane 1 forms a continuous closed shape. This continuous closed shape actually refers to the continuous closed shape formed by splicing together the portions of the touch drive trace TX and / or the touch sensing trace RX and / or the bridge portion TXR that are orthographically projected onto the driver backplane 1 and closest to the opening of the privacy protection element 32. That is, the first trace 41 can be formed by simply splicing together the portions of the touch drive trace TX, the touch sensing trace RX, or the bridge portion TXR that are orthographically projected onto the driver backplane 1 and closest to the opening of the privacy protection element 32, or it can be formed by splicing together the portions of the touch drive trace TX, the touch sensing trace RX, and the bridge portion TXR that are orthographically projected onto the driver backplane 1 and closest to the opening of the privacy protection element 32.

[0116] In this embodiment, the line width of the first trace 41 is greater than the line width of the second trace 42, and the second trace 42 is distributed as the touch line 4 in the spacing area between the openings of the light-emitting device 3 as usual; on the one hand, the first trace 41 serves as the touch line 4 and exerts the touch function of the touch line 4, and on the other hand, it is also used to block the light-emitting area around the edge of the opening of the anti-peeping element 32, so as to reduce the light-emitting area of ​​the opening of the anti-peeping element 32, thereby limiting the viewing angle of the anti-peeping element 32 to a preset anti-peeping viewing angle range, thereby realizing anti-peeping display of the display panel in certain anti-peeping scenarios.

[0117] In some embodiments, referring to Figures 2a and 2b, the orthographic projection of the first trace 41 on the driving backplane 1 is disconnected in the area between the orthographic projections of some adjacent anti-peeping elements 32 and the normal elements 31 on the driving backplane 1; the display panel further includes a dummy trace 5, which is located on the side of the light-emitting device 3 facing away from the driving backplane 1, and the orthographic projection of the dummy trace 5 on the driving backplane 1 is located between the orthographic projections of some adjacent anti-peeping elements 32 and the normal elements 31 on the driving backplane 1, and the orthographic projection of the dummy trace 5 on the driving backplane 1 is located between the first trace 41 The disconnected area of ​​the orthographic projection on the driving backplane 1; the distance between the orthographic projection of the dummy routing line 5 on the driving backplane 1 and the orthographic projection of the opening where the privacy protection element 32 is located on the driving backplane 1 is less than the distance between the orthographic projection of the second routing line 42 on the driving backplane 1 and the orthographic projection of the opening where the privacy protection element is located on the driving backplane 1; the line width of the dummy routing line 5 is greater than the line width of the second routing line 42; the dummy routing line 5 and the first routing line 41 are insulated from each other, and the orthographic projections of the dummy routing line 5 and the first routing line 41 on the driving backplane 1 form a continuous closed shape.

[0118] Among them, the touch line 4 is not set in the area between the anti-peeping element 32 and the normal element 31 split from a light-emitting device 3 and their orthographic projections on the driving backplane 1. Therefore, by setting a dummy trace 5 in the area where the touch line 4 is not set, and making the orthographic projections of the dummy trace 5 and the first trace 41 on the driving backplane 1 form a continuous closed shape, the light-emitting area around the edges of the opening of the anti-peeping element 32 can be blocked to reduce the area of ​​the light-emitting area of ​​the opening of the anti-peeping element 32, thereby limiting the viewing angle of the anti-peeping element 32 to a preset anti-peeping viewing angle range, thereby realizing anti-peeping display of the display panel in certain anti-peeping scenarios.

[0119] In some embodiments, the dummy trace 5 is suspended, and the dummy trace 5 and the first trace 41 are located in different layers, thereby achieving mutual insulation between the two.

[0120] In some embodiments, the touch line 4 and the dummy line 5 are both made of light-shielding conductive materials, such as light-shielding metals or metal alloy materials, such as copper, aluminum, silver, copper-silver alloy, etc., and light-shielding conductive laminated materials, such as indium tin oxide / silver / indium tin oxide materials, etc.

[0121] In some embodiments, referring to FIG. 2 a , FIG. 2 b , FIG. 2 c and FIG. 2 d , the orthographic projections of the first trace 41 and the dummy trace 5 on the driving backplane 1 do not overlap with the orthographic projection of the second light-emitting functional layer 312 on the driving backplane 1 .

[0122] In some embodiments, referring to FIG. 2 a , FIG. 2 b , FIG. 2 c , and FIG. 2 d , the orthographic projection of the first trace 41 on the driving backplane 1 does not overlap with the orthographic projection of the second light-emitting functional layer 312 on the driving backplane 1 .

[0123] In some embodiments, referring to FIG. 2 a , the orthographic projection of the first trace 41 on the driving backplane 1 overlaps with four edges of the orthographic projection of the first light-emitting functional layer 322 on the driving backplane 1 .

[0124] In some embodiments, referring to FIG. 2 a , the orthographic projections of the first trace 41 and the dummy trace 5 on the driving backplane 1 overlap with the edges of the orthographic projection of the first light-emitting functional layer 322 on the driving backplane 1 .

[0125] In some embodiments, referring to FIG2c , the anti-peeping element 32 is adjacent to the normal element 31 , and the calculation formula for the line width M of the first routing line 41 or the dummy routing line 5 located between the adjacent anti-peeping element 32 and the normal element 31 is: M=C+xy; x=BAz; y=(A+z) / tan(90°-θ / 2)-B; wherein, A is the distance between the side surface of the first routing line 41 or the dummy routing line 5 close to the anti-peeping element 32 and the side surface of the anti-peeping element 32 facing away from the driving backplane 1 ; B is the cross-sectional width of the opening where the anti-peeping element 32 is located on the first cross-sectional plane perpendicular to the driving backplane 1 ; the first cross-sectional plane is parallel to the arrangement direction of the anti-peeping element 32 and the normal element 31 ; C is the cross-sectional width of the pixel defining layer 2 located between the adjacent anti-peeping element 32 and the normal element 31 on the first cross-sectional plane, and the cross-sectional width of the pixel defining layer 2 is the distance between the pixel defining layer 2 and the anti-peeping element 32 facing away from the driving backplane 1 The cross-sectional width at the position where the side surface is flush; x is the distance between the edge of the first trace 41 or the dummy trace 5 on the first cross-section, which is close to the anti-peeping element 32, and the edge of the first light-emitting functional layer 322 on the first cross-section, which is close to the first trace 41 or the dummy trace 5; y is the distance between the edge of the first trace 41 or the dummy trace 5 on the first cross-section, which is away from the anti-peeping element 32, and the edge of the second light-emitting functional layer 312 on the first cross-section, which is close to the first trace 41 or the dummy trace 5; z is the thickness of the first trace 41 or the dummy trace 5; θ is the visible angle of the normal element 31 on the first cross-section.

[0126] Here, θ / 2 is the angle between the outermost light emitted by the normal element 31 on the first cross section and the normal line P perpendicular to the light emitting surface of the normal element 31 .

[0127] In some embodiments, referring to FIG. 2e , two privacy protection elements 32 are adjacent, and the two adjacent privacy protection elements 32 are respectively a first privacy protection element 32A and a second privacy protection element 32B. The calculation formula for the line width N of the first trace 41 located between the first privacy protection element 32A and the second privacy protection element 32B and close to the opening where the first privacy protection element 32A is located is: N=C+xy; x=BAz; y=(A+z) / tan(90°-α / 2)-B; wherein A is the distance between the side surface of the first trace 41 close to the first privacy protection element 32A and the side surface of the first privacy protection element 32A facing away from the driving back plate 1; B is the cross-sectional width of the opening where the first privacy protection element 32A is located on the second cross-sectional view perpendicular to the driving back plate 1; the second cross-sectional view is parallel to the arrangement direction of the first privacy protection element 32A and the second privacy protection element 32B. ; C is the cross-sectional width of the pixel defining layer 2 located between the first anti-peeping element 32A and the second anti-peeping element 32B on the second cross-section. The cross-sectional width of the pixel defining layer 2 is the cross-sectional width of the pixel defining layer 2 at a position flush with the surface of the first anti-peeping element 32A on the side facing away from the driving backplane 1; x is the distance between the edge of the first trace 41 close to the first anti-peeping element 32A and the edge of the first light-emitting functional layer 322 of the first anti-peeping element 32A close to the first trace 41 on the second cross-section; y is the distance between the edge of the first trace 41 away from the first anti-peeping element 32A and the edge of the first light-emitting functional layer 322 of the second anti-peeping element 32B close to the first trace 41 on the second cross-section; z is the thickness of the first trace 41; α is the viewing angle of the second anti-peeping element 32B on the second cross-section.

[0128] Here, α / 2 is the angle between the outermost light emitted by the second privacy protection element 32B on the second cross section and the normal line P' perpendicular to the light-emitting surface of the second privacy protection element 32B.

[0129] In this embodiment, the structural arrangement of the first routing line 41 and the dummy routing line 5 in FIG2a and the calculation method of the line width of the first routing line 41 and the dummy routing line 5 in FIG2c and FIG2e are applicable to display panels for realizing anti-peeping display, for example, medium and large-sized display panels for realizing anti-peeping display, such as display panels of 10 to 16 inches and above, or display panels with a resolution of 400PPI or above.

[0130] In some embodiments, referring to FIG. 2 b and FIG. 2 d , the orthographic projection of the first trace 41 on the driving backplane 1 does not overlap with the orthographic projection of the first light-emitting functional layer 322 on the driving backplane 1 .

[0131] In some embodiments, referring to FIG. 2 b and FIG. 2 d , the orthographic projections of the first trace 41 and the dummy trace 5 on the driving backplane 1 do not overlap with the orthographic projection of the first light-emitting functional layer 322 on the driving backplane 1 .

[0132] In some embodiments, referring to FIG2d , the anti-peeping element 32 is adjacent to the normal element 31, and the calculation formula of the line width M of the first trace 41 or the dummy trace 5 located between the adjacent anti-peeping element 32 and the normal element 31 is: M=Cxy; x=A+zB; y=(A+z) / tan(90°-θ / 2)-B; wherein A is the distance between the side surface of the first trace 41 or the dummy trace 5 close to the anti-peeping element 32 and the side surface of the anti-peeping element 32 away from the driving back plate 1; B is the cross-sectional width of the opening where the anti-peeping element 32 is located on the first cross-sectional view perpendicular to the driving back plate 1; the first cross-sectional view is parallel to the arrangement direction of the anti-peeping element 32 and the normal element 31; C is the distance between the adjacent anti-peeping element 32 and the normal element 31. The cross-sectional width of the pixel defining layer 2 on the first cross-section is the cross-sectional width of the pixel defining layer 2 at a position flush with the surface of the side of the anti-peeping element 32 away from the driving backplane 1; x is the distance between the edge of the first trace 41 or the dummy trace 5 close to the anti-peeping element 32 on the first cross-section and the edge of the first light-emitting functional layer 322 close to the first trace 41 or the dummy trace 5; y is the distance between the edge of the first trace 41 or the dummy trace 5 away from the anti-peeping element 32 on the first cross-section and the edge of the second light-emitting functional layer 312 close to the first trace 41 or the dummy trace 5; z is the thickness of the first trace 41 or the dummy trace 5; θ is the viewing angle of the normal element 31 on the first cross-section.

[0133] Here, θ / 2 is the angle between the outermost light emitted by the normal element 31 on the first cross section and the normal line P perpendicular to the light emitting surface of the normal element 31 .

[0134] In some embodiments, referring to FIG. 2f , two privacy protection elements 32 are adjacent, and the two adjacent privacy protection elements 32 are respectively a first privacy protection element 32A and a second privacy protection element 32B. The calculation formula for the line width N of the first trace 41 located between the first privacy protection element 32A and the second privacy protection element 32B and close to the opening where the first privacy protection element 32A is located is: N = Cxy; x = A + zB; y = (A + z) / tan (90° - α / 2) - B; wherein A is the distance between the side surface of the first trace 41 close to the first privacy protection element 32A and the side surface of the first privacy protection element 32A facing away from the driving back plate 1; B is the cross-sectional width of the opening where the first privacy protection element 32A is located on the second cross-sectional view perpendicular to the driving back plate 1; the second cross-sectional view is parallel to the arrangement direction of the first privacy protection element 32A and the second privacy protection element 32B. ; C is the cross-sectional width of the pixel defining layer 2 located between the first anti-peeping element 32A and the second anti-peeping element 32B on the second cross-section. The cross-sectional width of the pixel defining layer 2 is the cross-sectional width of the pixel defining layer 2 at a position flush with the surface of the first anti-peeping element 32A on the side facing away from the driving backplane 1; x is the distance between the edge of the first trace 41 close to the first anti-peeping element 32A and the edge of the first light-emitting functional layer 322 of the first anti-peeping element 32A close to the first trace 41 on the second cross-section; y is the distance between the edge of the first trace 41 away from the first anti-peeping element 32A and the edge of the first light-emitting functional layer 322 of the second anti-peeping element 32B close to the first trace 41 on the second cross-section; z is the thickness of the first trace 41; α is the viewing angle of the second anti-peeping element 32B on the second cross-section.

[0135] Here, α / 2 is the angle between the outermost light emitted by the second privacy protection element 32B on the second cross section and the normal line P' perpendicular to the light-emitting surface of the second privacy protection element 32B.

[0136] In this embodiment, the structural arrangement of the first routing line 41 and the dummy routing line 5 in FIG2b and the calculation method of the line width of the first routing line 41 and the dummy routing line 5 in FIG2d and FIG2f are applicable to realizing anti-peeping display on medium and large-sized display panels, such as display panels smaller than 10 inches, or display panels with a resolution of less than 300PPI.

[0137] In some embodiments, θ ranges from 120° to 160°. Preferably, θ is 120°.

[0138] In some embodiments, α ranges from 40° to 50°. Preferably, α is 45°.

[0139] In some embodiments, referring to Figures 2c, 2d, 2e and 2f, the display panel further includes an encapsulation layer 6 and a light-shielding layer 7. The encapsulation layer 6 is located on the side of the light-emitting device 3 away from the driving backplane 1, and on the side of the touch line 4 and the dummy trace 5 close to the driving backplane 1. The encapsulation layer 6 is used to encapsulate the light-emitting device 3; the light-shielding layer 7 is located on the side of the touch line 4 and the dummy trace 5 away from the driving backplane 1; the orthographic projection of the light-shielding layer 7 on the driving backplane 1 at least covers the first trace 41 between the orthographic projections of adjacent anti-peep elements 32 on the driving backplane 1 and the first trace 41 between the orthographic projections of adjacent anti-peep elements 32 and normal elements 31 on the driving backplane 1, or the orthographic projection of the dummy trace 5 on the driving backplane 1.

[0140] The orthographic projection area of ​​the light-shielding layer 7 on the driver backplane 1 can be equal to the orthographic projection area of ​​the first trace 41 and / or the dummy trace 5 on the driver backplane 1; the orthographic projection area of ​​the light-shielding layer 7 on the driver backplane 1 can also be larger than the orthographic projection area of ​​the first trace 41 and / or the dummy trace 5 on the driver backplane 1. The provision of the light-shielding layer 7 can, on the one hand, block the wide-angle light emitted by the anti-peeping element 32, thereby facilitating the anti-peeping angle and anti-peeping effect of the anti-peeping element 32; on the other hand, it can also reduce the reflectivity of the first trace 41 and / or the dummy trace 5 to ambient light, thereby eliminating the shadow of the first trace 41 and / or the dummy trace 5.

[0141] In some embodiments, referring to Figure 2h , which illustrates another cross-sectional view of the structure along line AA in Figure 2a , the light shielding layer 7 may also be located on the side of the touch lines 4 and dummy traces 5 that is closer to the driver backplane 1, and on the side of the encapsulation layer 6 that is away from the driver backplane 1. With this arrangement, the light shielding layer 7 can first absorb the wide-angle light emitted by the privacy protection element 32, and then further absorb the wide-angle light reflected by the touch lines 4 and dummy traces 5, thereby facilitating the improvement of the privacy protection angle and privacy protection effect of the privacy protection element 32.

[0142] In some embodiments, the light-shielding layer can also be located on the side of the encapsulation layer closest to the driver backplane, and on the side of the light-emitting device facing away from the driver backplane (not shown). With this arrangement, the light-shielding layer can also first absorb the wide-angle light emitted by the privacy protection element, and then further absorb the wide-angle light reflected by the touch lines and dummy traces, thereby improving the privacy protection element's privacy protection angle and privacy protection effect.

[0143] In some embodiments, the material of the light shielding layer 7 includes a black organic material, such as a black resin material, a black matrix material, and the like.

[0144] In some embodiments, referring to Figures 2c, 2d, 2e and 2f, the display panel further includes a first dielectric layer 8 and a second dielectric layer 9. The first dielectric layer 8 is located on the side of the packaging layer 6 facing away from the driving backplane 1, and is located on the side of the touch line 4 and the dummy trace 5 close to the driving backplane 1; the second dielectric layer 9 is located on the side of the touch line 4 and the dummy trace 5 facing away from the driving backplane 1.

[0145] In some embodiments, the first dielectric layer 8 and the second dielectric layer 9 are made of inorganic insulating materials, such as silicon nitride, silicon oxide, or silicon oxynitride.

[0146] In some embodiments, referring to Figures 2a and 2b, the display panel further includes a plurality of data lines 10, and a plurality of light-emitting devices 3 are arranged in an array, with each column of light-emitting devices 3 connected to a data line 10; among the light-emitting devices 3, the anti-peeping elements 32 and the normal elements 31 are arranged along the column direction of the array, and the anti-peeping elements 32 and the normal elements 31 are electrically connected to the same data line 10.

[0147] In some embodiments, referring to Figures 2a and 2b , in an array of light-emitting devices 3, odd-numbered rows are privacy-preventing elements 32, and even-numbered rows are normal elements 31. Along the columns of the array, privacy-preventing elements 32 and normal elements 31 are alternately distributed. In some embodiments, in an array of light-emitting devices, odd-numbered rows are normal elements, and even-numbered rows are privacy-preventing elements.

[0148] In some embodiments, referring to Figures 2c and 2d, the plurality of light-emitting devices 3 include a plurality of red light-emitting devices 301, a plurality of green light-emitting devices 302, and a plurality of blue light-emitting devices 303. The red light-emitting devices 301 include a red anti-peeping element and a red normal element; the green light-emitting devices 302 include a green anti-peeping element and a green normal element; and the blue light-emitting devices 303 include a blue anti-peeping element and a blue normal element. The slope angle Q1 of the open pixel defining layer 2 where the green anti-peeping element is located is greater than the slope angle Q2 of the open pixel defining layer 2 where the red anti-peeping element is located, and is greater than the slope angle Q3 of the open pixel defining layer 2 where the blue anti-peeping element is located. Because the human eye is sensitive to green light, the slope angles of the open pixel defining layer 2 where the different colored anti-peeping elements are located can achieve a better anti-peeping display effect on the display panel.

[0149] In some embodiments, referring to Figures 2a and 2b, the plurality of light-emitting devices 3 include a plurality of red light-emitting devices 301, a plurality of green light-emitting devices 302, and a plurality of blue light-emitting devices 303. The red light-emitting device 301 includes a red anti-peeping element and a red normal element; the green light-emitting device 302 includes a green anti-peeping element and a green normal element; the blue light-emitting device 303 includes a blue anti-peeping element and a blue normal element; wherein, the virtual trace 5 corresponding to the green anti-peeping element included in the green light-emitting device 302 and the first trace 41, whose orthographic projection on the driving backplane 1 forms a continuous closed shape area and the orthographic projection of the green anti-peeping element on the driving backplane 1 is equal to the area of ​​the green anti-peeping element. The area ratio is M1. The ratio of the area of ​​the orthographic projection of the dummy trace 5 and the first trace 41 corresponding to the red privacy protection element included in the red light-emitting device 301 on the driver backplane 1 to the area of ​​the orthographic projection of the red privacy protection element on the driver backplane 1 is M2. The ratio of the area of ​​the orthographic projection of the dummy trace 5 and the first trace 41 corresponding to the blue privacy protection element included in the blue light-emitting device 303 on the driver backplane 1 to the area of ​​the orthographic projection of the blue privacy protection element on the driver backplane 1 is M3. Where M1 is greater than at least one of M2 and M3, for example: M1>M2≥M3, or M1>M2>M3. Due to different light sensitivity of the human eye, the arrangement of the dummy trace 5 and the first trace 41 in the areas where the privacy protection elements of different colors are located can achieve better privacy protection display effects on the display panel.

[0150] In some embodiments, the slope angles of the open pixel defining layer 2 where the red normal element, the green normal element, and the blue normal element are located are the same.

[0151] In some embodiments, referring to Figures 2a and 2b, the driving backplane 1 includes multiple pixel circuits, with each light-emitting device 3 electrically connected to one pixel circuit. The pixel circuit includes a driving transistor 30, which is electrically connected to the normal element 31 and the anti-peeping element 32 of a light-emitting device 3. That is, the normal element 31 and the anti-peeping element 32 of a light-emitting device 3 are electrically connected to the same driving transistor 30. By having one pixel circuit drive the normal element 31 and the anti-peeping element 32 of a light-emitting device 3, circuit space and circuit costs can be saved, and the difficulty of manufacturing the pixel circuit can be reduced.

[0152] In some embodiments, the pixel circuit further includes a switching transistor, and the normal element 31 and the anti-peeping element 32 may be connected to different switching transistors to control the opening of the normal element 31 and the anti-peeping element 32 respectively.

[0153] In some embodiments, referring to FIG. 2 a and FIG. 2 b , a first electrode 304 of a driving transistor 30 in a pixel circuit is connected to a second anode 311 of a normal element 31 of a light emitting device 3 and a first anode 321 of a peek-proof element 32 .

[0154] In this embodiment, the driving transistor 30 also includes an active layer 305, a first gate insulating layer 308, a gate electrode 306, and a second electrode 307, and the first electrode 304 and the second electrode 307 are arranged in the same layer; the driving backplane 1 also includes a substrate 11, a buffer layer 12, an intermediate dielectric layer 13, and a planar layer 14, and the buffer layer 12, the active layer 305, the first gate insulating layer 308, the gate electrode 306, the intermediate dielectric layer 13, the first electrode 304, the second electrode 307, and the planar layer 14 are stacked in sequence on one side of the substrate 11; the second anode 311 and the first anode 321 are located on the side of the planar layer 14 away from the substrate 11, and the first electrode 304 of the driving transistor 30 is connected to the second anode 311 and the first anode 321 through a via opened in the planar layer 14.

[0155] In the display panel provided by the embodiment of the present disclosure, the line width of the first routing line is set to be greater than the line width of the second routing line, and the second routing line is distributed as usual as a touch line in the spacing area between the openings of the light-emitting devices; on the one hand, the first routing line serves as a touch line and exerts the touch function of the touch line, and on the other hand, it is also used to block the light-emitting area around the edge of the opening of the anti-peeping element, so as to reduce the area of ​​the light-emitting area of ​​the opening of the anti-peeping element, thereby limiting the viewing angle of the anti-peeping element to a preset anti-peeping viewing angle range, thereby realizing anti-peeping display of the display panel in certain anti-peeping scenarios.

[0156] The embodiment of the present disclosure also provides a driving method for the display panel, which includes: when the display panel is displaying normally, driving the backplane to drive the normal elements and anti-peeping elements in the light-emitting device to emit light; when the display panel is displaying anti-peeping, driving the backplane to drive the anti-peeping elements in the light-emitting device to emit light.

[0157] Specifically, when the display panel displays normally (such as normal display is usually displayed within a viewing angle range of 120°), the pixel circuit in the driving backplane drives the normal elements and anti-peeping elements in the light-emitting device to emit light, thereby realizing normal display of the display panel; when the display panel displays anti-peeping (such as anti-peeping display is usually displayed within a viewing angle range of 45°), the pixel circuit in the driving backplane only drives the anti-peeping element in the light-emitting device to emit light, thereby realizing anti-peeping display of the display panel.

[0158] An embodiment of the present disclosure further provides a display device, comprising the display panel in any of the above embodiments.

[0159] By adopting the display panel in any of the above embodiments, not only can the normal display of the display device be achieved (i.e., display in a large viewing angle range, such as a large viewing angle range of 120° to 160°), but also the anti-peeping display of the display device can be achieved (i.e., display in an anti-peeping viewing angle range, such as an anti-peeping viewing angle range of 40° to 50°).

[0160] The display device provided in the embodiments of the present disclosure may be any product or component with a display function, such as an OLED panel, an OLED TV, an OLED billboard, a display, a mobile phone, or a navigation system.

[0161] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present disclosure, and such modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A display panel, in, Including a driving backplane, a pixel definition layer, multiple light-emitting devices and touch lines, The pixel definition layer is located on one side of the driving backplane, and a plurality of openings are formed in the pixel definition layer; The light emitting device comprises a normal element and at least one anti-peeping element, wherein the anti-peeping element and the normal element are respectively located in different openings; The touch line is located on a side of the light emitting device away from the driving backplane. The touch control line includes a first line and a second line, and the orthographic projection of the first line on the driving backplane is located around the orthographic projection of the opening where the peek-proof element is located on the driving backplane; The distance between the orthographic projection of the second line on the driving backplane and the orthographic projection of the opening where the peep-proof element is located on the driving backplane is greater than the distance between the orthographic projection of the first line on the driving backplane and the orthographic projection of the opening where the peep-proof element is located on the driving backplane; The line width of at least a partial area of ​​the first routing line is greater than the line width of the second routing line.

2. The display panel according to claim 1, in, The orthographic projection of the first wiring on the driving backplane forms a continuous closed shape.

3. The display panel according to claim 1, in, The orthographic projection of the first wiring on the driving backplane is disconnected in a region between the orthographic projections of some adjacent anti-peeping elements and the normal elements on the driving backplane; The display panel further comprises a dummy wiring located on a side of the light emitting device away from the driving backplane, and the orthographic projection of the dummy wiring on the driving backplane is located on a portion of the adjacent anti-peeping The element is between the orthographic projection of the normal element on the driving backplane, and the orthographic projection of the dummy line on the driving backplane is located in the disconnected area of ​​the orthographic projection of the first line on the driving backplane; The distance between the orthographic projection of the virtual line on the driving backplane and the orthographic projection of the opening where the peep-proof element is located on the driving backplane is smaller than the distance between the orthographic projection of the second line on the driving backplane and the orthographic projection of the opening where the peep-proof element is located on the driving backplane; The line width of the dummy line is greater than the line width of the second line; The dummy wiring and the first wiring are insulated from each other, and the orthographic projections of the dummy wiring and the first wiring on the driving backplane form a continuous closed shape.

4. The display panel according to claim 3, in, The anti-peeping element comprises a first anode, a first light-emitting functional layer and a first cathode. The first anode, the first light-emitting functional layer and the first cathode are stacked in sequence away from the driving backplane; The normal element includes a second anode, a second light-emitting functional layer and a second cathode, The second anode, the second light-emitting functional layer and the second cathode are stacked in sequence away from the driving backplane; The orthographic projections of the first wiring and the dummy wiring on the driving backplane do not overlap with the orthographic projection of the second light-emitting functional layer on the driving backplane.

5. The display panel according to claim 4, in, The orthographic projections of the first routing line and the dummy routing line on the driving backplane overlap with the edges around the orthographic projection of the first light-emitting functional layer on the driving backplane.

6. The display panel according to claim 4, in, The orthographic projections of the first routing line and the dummy routing line on the driving backplane do not overlap with the orthographic projection of the first light-emitting functional layer on the driving backplane.

7. The display panel according to claim 5, in, The anti-peeping element is adjacent to the normal element, The calculation formula of the line width M of the first routing line or the dummy routing line located between the adjacent anti-peeping element and the normal element is: M=C+xy; x = BAz; y = (A + z) / tan (90° - θ / 2) - B; Wherein, A is the distance between a surface of one side of the first wiring or the dummy wiring close to the anti-peeping element and a surface of one side of the anti-peeping element away from the driving backplane; B is the cross-sectional width of the opening where the anti-peeping element is located on a first cross-sectional area perpendicular to the driving back plate; the first cross-sectional area is parallel to the arrangement direction of the anti-peeping element and the normal element; C is the cross-sectional width of the pixel defining layer located between the adjacent peep-proof element and the normal element on the first cross-sectional area, and the cross-sectional width of the pixel defining layer is the cross-sectional width of the pixel defining layer at a position flush with the surface of the side of the peep-proof element away from the driving backplane; x is the distance between an edge of one end of the first wiring or the dummy wiring close to the peek-proof element and an edge of one end of the first light-emitting functional layer close to the first wiring or the dummy wiring on the first cross section; y is the distance between an edge of one end of the first wiring or the dummy wiring away from the peep-proof element and an edge of one end of the second light-emitting functional layer close to the first wiring or the dummy wiring on the first cross section; z is the thickness of the first routing line or the dummy routing line; θ is the visible angle of the normal element on the first cross section.

8. The display panel according to claim 5, in, The two privacy protection elements are adjacent to each other, and the two adjacent privacy protection elements are respectively a first privacy protection element and a second privacy protection element. The calculation formula of the line width N of the first line located between the first anti-peeping element and the second anti-peeping element and close to the opening where the first anti-peeping element is located is: N=C+xy; x = BAz; y = (A + z) / tan (90° - α / 2) - B; Wherein, A is the distance between a surface of one side of the first wiring close to the first anti-peeping element and a surface of one side of the first anti-peeping element away from the driving backplane; B is the cross-sectional width of the opening where the first anti-peeping element is located on a second cross-sectional area perpendicular to the driving back plate; the second cross-sectional area is parallel to the arrangement direction of the first anti-peeping element and the second anti-peeping element; C is a cross-sectional width of the pixel defining layer located between the first anti-peeping element and the second anti-peeping element on the second cross-section, and the cross-sectional width of the pixel defining layer is a cross-sectional width of the pixel defining layer at a position flush with a surface of a side of the first anti-peeping element away from the driving backplane; x is the distance between an edge of one end of the first wiring close to the first peep-proof element and an edge of one end of the first light-emitting functional layer of the first peep-proof element close to the first wiring on the second cross section; y is the distance between an edge of one end of the first wiring away from the first peep-proof element and an edge of one end of the first light-emitting functional layer of the second peep-proof element close to the first wiring on the second cross section; z is the thickness of the first trace; α is the visible angle of the second anti-peeping element on the second cross section.

9. The display panel according to claim 6, in, The anti-peeping element is adjacent to the normal element, The calculation formula of the line width M of the first routing line or the dummy routing line located between the adjacent anti-peeping elements and the normal elements is: M=Cxy; x=A+zB; y = (A + z) / tan (90° - θ / 2) - B; Wherein, A is the distance between a surface of one side of the first wiring or the dummy wiring close to the anti-peeping element and a surface of one side of the anti-peeping element away from the driving backplane; B is the cross-sectional width of the opening where the anti-peeping element is located on a first cross-sectional area perpendicular to the driving back plate; the first cross-sectional area is parallel to the arrangement direction of the anti-peeping element and the normal element; C is the cross-sectional width of the pixel defining layer located between the adjacent peep-proof element and the normal element on the first cross-sectional area, and the cross-sectional width of the pixel defining layer is the cross-sectional width of the pixel defining layer at a position flush with the surface of the side of the peep-proof element away from the driving backplane; x is the distance between an edge of one end of the first wiring or the dummy wiring close to the peek-proof element and an edge of one end of the first light-emitting functional layer close to the first wiring or the dummy wiring on the first cross section; y is the distance between an edge of one end of the first wiring or the dummy wiring away from the peep-proof element and an edge of one end of the second light-emitting functional layer close to the first wiring or the dummy wiring on the first cross section; z is the thickness of the first routing line or the dummy routing line; θ is the visible angle of the normal element on the first cross section.

10. The display panel according to claim 6, in, The two privacy protection elements are adjacent to each other, and the two adjacent privacy protection elements are respectively a first privacy protection element and a second privacy protection element. A device located between the first anti-peeping element and the second anti-peeping element and close to the first anti-peeping element The calculation formula of the line width N of the first routing line of the opening where the component is located is: N=Cxy; x=A+zB; y = (A + z) / tan (90° - α / 2) - B; Wherein, A is the distance between a surface of one side of the first wiring close to the first anti-peeping element and a surface of one side of the first anti-peeping element away from the driving backplane; B is the cross-sectional width of the opening where the first anti-peeping element is located on a second cross-sectional area perpendicular to the driving back plate; the second cross-sectional area is parallel to the arrangement direction of the first anti-peeping element and the second anti-peeping element; C is a cross-sectional width of the pixel defining layer located between the first anti-peeping element and the second anti-peeping element on the second cross-section, and the cross-sectional width of the pixel defining layer is a cross-sectional width of the pixel defining layer at a position flush with a surface of a side of the first anti-peeping element away from the driving backplane; x is the distance between an edge of one end of the first wiring close to the first peep-proof element and an edge of one end of the first light-emitting functional layer of the first peep-proof element close to the first wiring on the second cross section; y is the distance between an edge of one end of the first wiring away from the first peep-proof element and an edge of one end of the first light-emitting functional layer of the second peep-proof element close to the first wiring on the second cross section; z is the thickness of the first trace; α is the visible angle of the second anti-peeping element on the second cross section.

11. The display panel according to claim 7 or 9, in, The range of θ is 120° to 160°.

12. The display panel according to claim 8 or 10, in, The range of α is 40° to 100°.

13. The display panel according to claim 3, in, It also includes an encapsulation layer and a light shielding layer. The encapsulation layer is located on a side of the light emitting device away from the driving backplane, and is located on a side of the touch line and the dummy line close to the driving backplane, and the encapsulation layer is used to encapsulate the light emitting device; The light shielding layer is located on a side of the touch line and the dummy line away from the driving backplane, Alternatively, the light shielding layer is located on a side of the touch line and the dummy line close to the driving backplane, and is located on a side of the encapsulation layer away from the driving backplane; Alternatively, the light shielding layer is located on a side of the encapsulation layer close to the driving backplane, and is located on a side of the light emitting device away from the driving backplane; The orthographic projection of the shading layer on the driving backplane at least covers the first routing line between the orthographic projections of adjacent anti-peeping elements on the driving backplane and the first routing line between the orthographic projections of adjacent anti-peeping elements and normal elements on the driving backplane or the orthographic projection of the dummy routing line on the driving backplane.

14. The display panel according to claim 13, in, The material of the light shielding layer includes black organic material.

15. The display panel according to claim 1, in, It also includes multiple data lines. The plurality of light emitting devices are arranged in an array, Each column of the light emitting devices is connected to one of the data lines; In the light emitting device, the anti-peeping element and the normal element are arranged along the column direction of the array, and the anti-peeping element and the normal element are electrically connected to the same data line.

16. The display panel according to claim 15, in, In the array of the light emitting devices, odd-numbered rows are the anti-peeping elements, and even-numbered rows are the normal elements; Alternatively, in the array, odd-numbered rows are normal elements, and even-numbered rows are anti-peeping elements; Along the column direction of the array, the anti-peeping elements and the normal elements are alternately distributed in sequence.

17. The display panel according to claim 1, in, The plurality of light emitting devices include a plurality of red light emitting devices, a plurality of green light emitting devices and a plurality of blue light emitting devices, The red light emitting device includes a red anti-peeping element and a red normal element; The green light emitting device includes a green anti-peeping element and a green normal element; The blue light emitting device includes a blue anti-peeping element and a blue normal element; The slope angle of the pixel defining layer at the opening where the green peep-proof element is located is greater than the slope angle of the pixel defining layer at the opening where the red peep-proof element is located and is greater than the slope angle of the pixel defining layer at the opening where the blue peep-proof element is located.

18. The display panel according to claim 17, in, The red normal element, the green normal element, and the blue normal element have the same slope angle at the opening of the pixel defining layer.

19. The display panel according to claim 1, in, The driving backplane includes a plurality of pixel circuits. One of the light-emitting devices is electrically connected to one of the pixel circuits; The pixel circuit includes a driving transistor, and the driving transistor is electrically connected to the normal element and the anti-peeping element of the light-emitting device.

20. A display device, in, A display panel comprising any one of claims 1-19.

21. A method for driving a display panel, in, When the display panel displays normally, the driving backplane drives the normal elements and the anti-peeping elements in the light-emitting device to emit light; When the display panel performs anti-peeping display, the driving backplane drives the anti-peeping element in the light-emitting device to emit light.

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