Display panel and electronic equipment

Abstract

The present application provides a display panel and an electronic device. The display panel includes a light-emitting layer and a light-blocking module. The light-blocking module is arranged on one side of the light-emitting layer, and the light-blocking module includes a conductive layer, an electromagnetic conversion layer electrically connected to the conductive layer, and a light-blocking layer. The electromagnetic conversion layer and the light-blocking layer both correspond to the light-emitting layer, and the light-blocking layer has a plurality of nano-magnetic particles for reflecting light. When the conductive layer causes the electromagnetic conversion layer to be in an energized state, at least part of the electromagnetic conversion layer generates a magnetic field, and under the control of the magnetic field, the nano-magnetic particles move and cover at least part of the electromagnetic conversion layer that generates the magnetic field, thereby covering at least part of the light-emitting layer and reflecting light from the light-emitting layer. The present application utilizes the electromagnetic conversion layer to control the nano-magnetic particles to cover at least part of the light-emitting layer, so as to realize dynamic adjustment of the anti-peeping viewing angle, and the user can select different visual viewing angles in the anti-peeping mode to achieve multi-directional anti-peeping display, thereby improving the display effect of the display panel.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and specifically relates to display panels and electronic devices. Background Art

[0002] Due to the rapid development of display technology, the viewing angle of display panels is getting larger and larger. Using display screens in public places where information is shared is not conducive to protecting personal privacy. At present, the most economical and convenient way to protect screen privacy is to stick a layer of anti-peep film on the outside of the display screen. However, after sticking the anti-peep film, it is impossible to display normally when anti-peep mode is not needed, the anti-peep mode is fixed, and the visual viewing angle cannot be switched according to specific requirements and occasions, which reduces the display effect of the display panel. Summary of the invention

[0003] In view of this, a first aspect of the present application provides a display panel, the display panel comprising:

[0004] Luminescent layer;

[0005] A light-blocking module is arranged on one side of the light-emitting layer, the light-blocking module comprises a conductive layer, an electromagnetic conversion layer electrically connected to the conductive layer, and a light-blocking layer, the light-blocking layer is arranged on a surface of the electromagnetic conversion layer away from the light-emitting layer and / or a surface of the electromagnetic conversion layer facing the light-emitting layer, the electromagnetic conversion layer and the light-blocking layer both correspond to the light-emitting layer, at least a part of the electromagnetic conversion layer is used to generate a magnetic field, the light-blocking layer has a plurality of nanomagnetic particles for reflecting light, and the plurality of nanomagnetic particles can move relative to the light-emitting layer under the control of the magnetic field;

[0006] When the conductive layer puts the electromagnetic conversion layer in a power-on state, at least part of the electromagnetic conversion layer generates a magnetic field, and the nanomagnetic particles, under the control of the magnetic field, move and cover at least part of the electromagnetic conversion layer that generates the magnetic field, thereby covering at least part of the light-emitting layer and reflecting light from the light-emitting layer.

[0007] The display panel provided in the first aspect of the present application comprises a light-emitting layer, a light-blocking module composed of a conductive layer, an electromagnetic conversion layer, and a light-blocking layer. The conductive layer is used to control the electromagnetic conversion layer to be in a powered state or a non-powered state. The electromagnetic conversion layer is used to generate a magnetic field. The nano-magnetic particles of the light-blocking layer are used to move and block the light-emitting layer under the control of the magnetic field.

[0008] Specifically, the conductive layer controls the electromagnetic conversion layer to be in a powered-on state, and the electromagnetic conversion layer in the powered-on state generates a magnetic field. Under the control of the magnetic field, it can be understood that the nanomagnetic particles are attracted by the magnetic field, and the nanomagnetic particles move and cover the electromagnetic conversion layer that generates the magnetic field, thereby covering at least part of the luminescent layer. The nanomagnetic particles can reflect light to block the emission of light from at least part of the luminescent layer to achieve anti-peeping. Among them, the position of the nanomagnetic particles covering the luminescent layer can be adjusted according to product requirements or user needs, and the anti-peeping viewing angle can be dynamically adjusted to achieve multi-directional anti-peeping display.

[0009] Therefore, the present application utilizes the electromagnetic conversion layer to control the nanomagnetic particles to cover at least part of the luminescent layer to achieve dynamic adjustment of the anti-peeping viewing angle. Users can choose different visual viewing angles in the anti-peeping mode to achieve multi-directional anti-peeping display, thereby improving the display effect of the display panel.

[0010] The light-emitting layer includes a first portion and a second portion which are arranged opposite to each other in a direction perpendicular to the arrangement direction of the electromagnetic conversion layer and the light-blocking layer, and the electromagnetic conversion layer satisfies at least one of the following conditions:

[0011] The electromagnetic conversion layer includes a first electromagnetic conversion portion, and the first electromagnetic conversion portion corresponds to the first portion;

[0012] The electromagnetic conversion layer includes a second electromagnetic conversion portion, and the second electromagnetic conversion portion corresponds to the second portion.

[0013] The electromagnetic conversion layer includes the first electromagnetic conversion part and the second electromagnetic conversion part, and the first electromagnetic conversion part and the second electromagnetic conversion part are stacked and insulated on one side of the light-emitting layer.

[0014] Among them, the electromagnetic conversion layer also includes two third electromagnetic conversion parts, the two third electromagnetic conversion parts correspond to the first part and the second part respectively, and the two third electromagnetic conversion parts are arranged at intervals; the first electromagnetic conversion part, the second electromagnetic conversion part, and the two third electromagnetic conversion parts are stacked and insulated in sequence along the arrangement direction from the light-emitting layer to the light-blocking layer.

[0015] Among them, the orthographic projections of the first electromagnetic conversion part and the second electromagnetic conversion part on the light-emitting layer are connected; the orthographic projection of one of the third electromagnetic conversion parts on the light-emitting layer coincides with the partial orthographic projection of the first electromagnetic conversion part on the light-emitting layer, and the orthographic projection of another third electromagnetic conversion part on the light-emitting layer coincides with the partial orthographic projection of the second electromagnetic conversion part on the light-emitting layer.

[0016] Wherein, the electromagnetic conversion layer and the light blocking layer both protrude in a direction away from the light emitting layer.

[0017] The conductive layer includes a first conductive portion and a second conductive portion electrically connected to the first conductive portion, the first conductive portion is arranged on a side of the light-emitting layer facing the electromagnetic conversion layer, and the second conductive portion is arranged on a side of the first conductive portion facing the electromagnetic conversion layer and protrudes in a direction away from the light-emitting layer;

[0018] The light-emitting layer includes a first part and a second part which are arranged opposite to each other in a direction perpendicular to the arrangement direction of the electromagnetic conversion layer and the light-blocking layer. The electromagnetic conversion layer includes a first electromagnetic conversion part corresponding to the first part and a second electromagnetic conversion part corresponding to the second part. The first electromagnetic conversion part and the second electromagnetic conversion part both include a first part which is protruding relative to the light-emitting layer, and a second part which is bent and connected to the first part. The second part is also connected to the second conductive part.

[0019] The electromagnetic conversion layer further includes two third electromagnetic conversion parts, the two third electromagnetic conversion parts respectively correspond to the first part and the second part, and the two third electromagnetic conversion parts further include a first part protruding relative to the light-emitting layer, and a second part bent and connected to the first part;

[0020] Along the arrangement direction from the light-emitting layer to the light-blocking layer, the first part of the first electromagnetic conversion unit, the first part of the second electromagnetic conversion unit, and the first parts of the two third electromagnetic conversion units are stacked in sequence; the second part of the first electromagnetic conversion unit and the second part of the second electromagnetic conversion unit are both located between the second parts of the two third electromagnetic conversion units.

[0021] Among them, the light blocking module also includes a one-way light-transmitting reflective film arranged between the light-emitting layer and the light-blocking layer, and the one-way light-transmitting reflective film corresponds to the light-emitting layer and the light-blocking layer. The one-way light-transmitting reflective film is used to transmit the light from the light-emitting layer and reflect the light reflected by the nanomagnetic particles.

[0022] A second aspect of the present application provides an electronic device, which includes a housing and a display panel as provided in the first aspect of the present application, wherein the display panel is mounted on the housing.

[0023] The electronic device provided in the second aspect of the present application adopts the display panel provided in the first aspect of the present application. By utilizing the electromagnetic conversion layer, the nanomagnetic particles are controlled to cover at least a portion of the light-emitting layer to achieve dynamic adjustment of the anti-peeping viewing angle. The user can choose different visual viewing angles in the anti-peeping mode to achieve multi-directional anti-peeping display, thereby improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0025] Figure 1 A schematic diagram of the structure of a display panel provided in one embodiment of the present application Figure 1 .

[0026] Figure 2 A schematic diagram of the structure of a display panel provided in one embodiment of the present application Figure 2 .

[0027] Figure 3 A schematic diagram of the structure of a display panel provided in one embodiment of the present application Figure 3 .

[0028] Figure 4 A schematic diagram of the structure of an electromagnetic conversion layer provided in one embodiment of the present application.

[0029] Figure 5 A schematic structural diagram of a light-blocking layer provided in one embodiment of the present application.

[0030] Figure 6 A schematic structural diagram of a portion of a display panel provided in one embodiment of the present application.

[0031] Figure 7 A schematic structural diagram of an electromagnetic conversion layer and a second conductive portion provided in one embodiment of the present application.

[0032] Explanation of reference numerals: display panel-1, light-emitting layer-11, first part-11a, second part-11b, light-emitting unit-111, cathode-1111, electron injection layer-1112, electron transport layer-1113, intermediate light-emitting layer-1114, hole transport layer-1115, hole injection layer-1116, anode-1117, backlight-1121, first polarizer-1122, first glass substrate-1123, liquid crystal layer-1124, color resistance layer-1125, second glass substrate-11 26, second polarizer-1127, light blocking module-12, conductive layer-121, first conductive part-1211, second conductive part-1212, electromagnetic conversion layer-122, first part-122a, second part-122b, first electromagnetic conversion part-1221, second electromagnetic conversion part-1222, third electromagnetic conversion part-1223, insulating layer-1224, light blocking layer-123, light-transmitting encapsulation layer-13, encapsulation shell-14, light-transmitting substrate-15, one-way light-transmitting reflective film-16. DETAILED DESCRIPTION

[0033] The following are preferred implementations of the present application. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

[0034] Please refer to Figure 1-Figure 3 , Figure 1 A schematic diagram of the structure of a display panel provided in one embodiment of the present application Figure 1 . Figure 2 A schematic diagram of the structure of a display panel provided in one embodiment of the present application Figure 2 . Figure 3 A schematic diagram of the structure of a display panel provided in one embodiment of the present application Figure 3 .

[0035] The present embodiment provides a display panel 1, which includes a light-emitting layer 11 and a light-blocking module 12. The light-blocking module 12 is arranged on one side of the light-emitting layer 11, and includes a conductive layer 121, an electromagnetic conversion layer 122 electrically connected to the conductive layer 121, and a light-blocking layer 123, the light-blocking layer 123 is arranged on the surface of the electromagnetic conversion layer 122 away from the light-emitting layer 11 and / or the surface of the electromagnetic conversion layer 122 facing the light-emitting layer 11, the electromagnetic conversion layer 122 and the light-blocking layer 123 both correspond to the light-emitting layer 11, at least a part of the electromagnetic conversion layer 122 is used to generate a magnetic field, the light-blocking layer 123 has a plurality of nanomagnetic particles for reflecting light, and the plurality of nanomagnetic particles can move relative to the light-emitting layer 11 under the control of the magnetic field.

[0036] When the conductive layer 121 puts the electromagnetic conversion layer 122 in a powered-on state, at least part of the electromagnetic conversion layer 122 generates a magnetic field, and the nanomagnetic particles, under the control of the magnetic field, move and cover at least part of the electromagnetic conversion layer 122 that generates the magnetic field, thereby covering at least part of the light-emitting layer 11 and reflecting light from the light-emitting layer 11.

[0037] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application and the above drawings are used to distinguish different objects rather than to describe a specific order.

[0038] The display panel 1 may be a liquid crystal display (LCD) panel, or an organic light-emitting diode (OLED) panel.

[0039] The display panel 1 provided in this embodiment includes a light-emitting layer 11 for emitting light. Optionally, the display panel 1 also includes a light-transmitting substrate 15 disposed between the light-emitting layer 11 and the light-blocking module 12, which is a substrate for coating. The material of the light-transmitting substrate 15 can be glass. Optionally, the display panel 1 also includes a light-transmitting encapsulation layer 13 disposed on the side of the light-emitting layer 11 facing the light-blocking module 12, and the light-transmitting encapsulation layer 13 covers the light-blocking module 12. The light of the light-emitting layer 11 is shown as L in the accompanying drawing.

[0040] In one embodiment, Figure 2 As shown, the light-emitting layer 11 includes a plurality of light-emitting units 111, and each light-emitting unit 111 includes a cathode 1111, an electron injection layer 1112, an electron transport layer 1113, an intermediate light-emitting layer 1114, a hole transport layer 1115, a hole injection layer 1116, and an anode 1117, which are sequentially stacked along the arrangement direction from the light-transmitting substrate 15 to the light-blocking module 12. Optionally, the cathode 1111 and / or the anode 1117 can transmit light. The display panel 1 also includes a packaging shell 14 connected to the anode 1117, and the packaging shell 14 and the anode 1117 are surrounded to form a cavity. The cathode 1111, the electron injection layer 1112, the electron transport layer 1113, the intermediate light-emitting layer 1114, the hole transport layer 1115, and the hole injection layer 1116 of the light-emitting unit 111 except the anode 1117 are all arranged in the cavity.

[0041] In another embodiment, if Figure 3 As shown, the light-emitting layer 11 includes a backlight 1121, a first polarizer 1122, a first glass substrate 1123, a liquid crystal layer 1124, a color resist layer 1125, a second glass substrate 1126, and a second polarizer 1127 which are sequentially stacked along the arrangement direction from the transparent substrate 15 to the light blocking module 12.

[0042] The display panel 1 provided in this embodiment also includes a light-blocking module 12 composed of a conductive layer 121, an electromagnetic conversion layer 122, and a light-blocking layer 123. Both the conductive layer 121 and the electromagnetic conversion layer 122 can transmit light. The conductive layer 121 is used to control the electromagnetic conversion layer 122 to be in an energized state or a non-energized state. In other words, the conductive layer 121 can transfer charges to the electromagnetic conversion layer 122. When the electromagnetic conversion layer 122 is in an energized state, the electromagnetic conversion layer 122 can generate a magnetic field. In other words, after the electromagnetic conversion layer 122 receives the charge, it converts the magnetic field. The light-blocking layer 123 also includes a light-transmitting encapsulation shell, which has a housing cavity for accommodating nanomagnetic particles. The nanomagnetic particles move relative to the light-emitting layer 11 under the control of the magnetic field. In other words, the nanomagnetic particles can be attracted by the magnetic field. In addition, the nanomagnetic particles can reflect light. The nanomagnetic particles can be a nanostructure of magnetic graphene hollow microspheres.

[0043] For example, the conductive layer 121 , the electromagnetic conversion layer 122 , and the light blocking layer 123 are sequentially stacked on one side of the light emitting layer 11 , and the conductive layer 121 is connected to the electromagnetic conversion layer 122 .

[0044] For another example, the conductive layer 121, the light blocking layer 123, and the electromagnetic conversion layer 122 are stacked in sequence on one side of the light-emitting layer 11, the conductive layer 121 also penetrates the light blocking layer 123 or is arranged on one side of the light blocking layer 123, and the conductive layer 121 is connected to the electromagnetic conversion layer 122.

[0045] For another example, the electromagnetic conversion layer 122 , the light blocking layer 123 , and the conductive layer 121 are sequentially stacked on one side of the light emitting layer 11 , and the conductive layer 121 also penetrates the light blocking layer 123 or is disposed on one side of the light blocking layer 123 to connect the electromagnetic conversion layer 122 .

[0046] For another example, the light blocking layer 123 , the electromagnetic conversion layer 122 , and the conductive layer 121 are sequentially stacked on one side of the light emitting layer 11 , and the conductive layer 121 is connected to the electromagnetic conversion layer 122 .

[0047] For another example, the electromagnetic conversion layer 122 and the light blocking layer 123 are sequentially stacked on one side of the light emitting layer 11 , and the conductive layer 121 is disposed on the same layer as the electromagnetic conversion layer 122 and is connected to the electromagnetic conversion layer 122 .

[0048] Specifically, the conductive layer 121 controls the electromagnetic conversion layer 122 to be in a powered-on state, and the electromagnetic conversion layer 122 in the powered-on state generates a magnetic field. Under the control of the magnetic field, it can be understood that the nanomagnetic particles are attracted by the magnetic field, and the nanomagnetic particles move and cover the electromagnetic conversion layer 122 that generates the magnetic field, thereby covering at least part of the light-emitting layer 11. The nanomagnetic particles can reflect light to block the emission of light from at least part of the light-emitting layer 11 to achieve anti-peeping. Among them, the position where the nanomagnetic particles cover the light-emitting layer 11 can be adjusted according to product requirements or user needs, and the anti-peeping viewing angle can be dynamically adjusted to achieve multi-directional anti-peeping display.

[0049] When the conductive layer 121 puts the electromagnetic conversion layer 122 in a non-powered state, the electromagnetic conversion layer 122 does not generate a magnetic field, and the nanomagnetic particles can naturally slide down along the cavity wall of the light-blocking layer 123 under the action of gravity, so that the light-emitting layer 11 is exposed, allowing the light of the light-emitting layer 11 to emit to the outside.

[0050] Therefore, this embodiment utilizes the electromagnetic conversion layer 122 to electrically convert magnetism and control the nanomagnetic particles to cover at least part of the light-emitting layer 11 to achieve dynamic adjustment of the anti-peeping viewing angle. The user can choose different visual viewing angles in the anti-peeping mode to achieve multi-directional anti-peeping display, thereby improving the display effect of the display panel 1.

[0051] Please refer to Figure 1-Figure 4 , Figure 4Schematic diagram of the structure of the electromagnetic conversion layer provided in one embodiment of the present application. In one embodiment, the light-emitting layer 11 includes a direction perpendicular to the arrangement direction of the electromagnetic conversion layer 122 and the light-blocking layer 123 (such as Figure 1 The electromagnetic conversion layer 122 satisfies at least one of the following conditions: the electromagnetic conversion layer 122 includes a first electromagnetic conversion portion 1221, and the first electromagnetic conversion portion 1221 corresponds to the first portion 11a. And / or, the electromagnetic conversion layer 122 includes a second electromagnetic conversion portion 1222, and the second electromagnetic conversion portion 1222 corresponds to the second portion 11b.

[0052] The light-emitting layer 11 provided in this embodiment includes a first portion 11a and a second portion 11b arranged opposite to each other, which can also be understood as the right side and the left side of the light-emitting layer 11. The first electromagnetic conversion portion 1221 corresponds to the first portion 11a. In other words, the orthographic projection of the first electromagnetic conversion portion 1221 on the light-emitting layer 11 covers at least part of the first portion 11a. The second electromagnetic conversion portion 1222 corresponds to the second portion 11b. In other words, the orthographic projection of the second electromagnetic conversion portion 1222 on the light-emitting layer 11 covers at least part of the second portion 11b.

[0053] Optionally, the first electromagnetic conversion part 1221 and the second electromagnetic conversion part 1222 are stacked. Optionally, the first electromagnetic conversion part 1221 and the second electromagnetic conversion part 1222 are arranged in the same layer. Optionally, there is a gap between the first electromagnetic conversion part 1221 and the second electromagnetic conversion part 1222. Optionally, the first electromagnetic conversion part 1221 is connected to the second electromagnetic conversion part 1222.

[0054] In this embodiment, the first electromagnetic conversion unit 1221 and / or the second electromagnetic conversion unit 1222 are provided to realize right-side and left-side peeping protection of the display panel 1. The user can select different visual angles in the peeping protection mode to achieve multi-directional peeping protection display, thereby improving the display effect of the display panel 1.

[0055] By controlling the output path of the conductive layer 121 according to the needs, the charges are conducted to different electromagnetic conversion parts to generate magnetic fields with different positions (modes), thereby guiding the nanomagnetic particles to cover the light-emitting layer 11 at different positions, so that the user can choose different visual angles in the anti-peeping mode.

[0056] Please refer to Figure 1-Figure 4 In one embodiment, the electromagnetic conversion layer 122 includes the first electromagnetic conversion portion 1221 and the second electromagnetic conversion portion 1222, and the first electromagnetic conversion portion 1221 and the second electromagnetic conversion portion 1222 are stacked and insulated on one side of the light-emitting layer 11.

[0057] An insulating layer 1224 is provided between the first electromagnetic conversion part 1221 and the second electromagnetic conversion part 1222. The insulating layer 1224 can also be understood as a passivation layer. For example, the first electromagnetic conversion part 1221 is closer to the light-emitting layer 11 than the second electromagnetic conversion part 1222. For another example, the first electromagnetic conversion part 1221 is farther from the light-emitting layer 11 than the second electromagnetic conversion part 1222.

[0058] In this embodiment, the first electromagnetic conversion unit 1221 and the second electromagnetic conversion unit 1222 are stacked to achieve multi-directional anti-peeping display, improve the display effect of the display panel 1, save space, and improve the space utilization rate of the display panel 1.

[0059] Please refer to Figure 1-Figure 4 In one embodiment, the electromagnetic conversion layer 122 further includes two third electromagnetic conversion parts 1223, the two third electromagnetic conversion parts 1223 respectively correspond to the first part 11a and the second part 11b, and the two third electromagnetic conversion parts 1223 are arranged at intervals; the first electromagnetic conversion part 1221, the second electromagnetic conversion part 1222, and the two third electromagnetic conversion parts 1223 are arranged along the direction from the light-emitting layer 11 to the light-blocking layer 123 (such as Figure 1 They are stacked and insulated in sequence (as shown in the middle direction D2).

[0060] Optionally, the two third electromagnetic conversion parts 1223 are disposed in the same layer. Optionally, the two third electromagnetic conversion parts 1223 are stacked and disposed on one side of the light emitting layer 11 .

[0061] One third electromagnetic conversion portion 1223 corresponds to the first portion 11a. In other words, the orthographic projection of one third electromagnetic conversion portion 1223 on the light-emitting layer 11 covers at least part of the first portion 11a. Another third electromagnetic conversion portion 1223 corresponds to the second portion 11b. In other words, the orthographic projection of another third electromagnetic conversion portion 1223 on the light-emitting layer 11 covers at least part of the second portion 11b. The two third electromagnetic conversion portions 1223 are arranged at intervals, and the light of the light-emitting layer 11 can be emitted from the gap between the two third electromagnetic conversion portions 1223. The two third electromagnetic conversion portions 1223 can be understood as a wide-angle peeping protection.

[0062] An insulating layer 1224 is disposed between the first electromagnetic transducer 1221 and the second electromagnetic transducer 1222 , and an insulating layer 1224 is disposed between the second electromagnetic transducer 1222 and the two third electromagnetic transducers 1223 .

[0063] This embodiment achieves multi-directional anti-peeping display by stacking the first electromagnetic conversion unit 1221, the second electromagnetic conversion unit 1222, and the two third electromagnetic conversion units 1223, thereby improving the display effect of the display panel 1, saving space, and improving the space utilization rate of the display panel 1.

[0064] It should be noted that the pattern and quantity of the electromagnetic conversion part can be increased according to the demand, and so on, the electromagnetic conversion part and the insulating layer 1224 are superimposed to achieve multi-directional anti-peeping display.

[0065] Please refer to Figure 1-Figure 4 In one embodiment, the orthographic projections of the first electromagnetic conversion part 1221 and the second electromagnetic conversion part 1222 on the light-emitting layer 11 are connected; the orthographic projection of one of the third electromagnetic conversion parts 1223 on the light-emitting layer 11 coincides with a partial orthographic projection of the first electromagnetic conversion part 1221 on the light-emitting layer 11, and the orthographic projection of another third electromagnetic conversion part 1223 on the light-emitting layer 11 coincides with a partial orthographic projection of the second electromagnetic conversion part 1222 on the light-emitting layer 11.

[0066] The edges of the orthographic projections of the first electromagnetic conversion portion 1221 and the second electromagnetic conversion portion 1222 on the light-emitting layer 11 are connected. In other words, the two orthographic projections of the first electromagnetic conversion portion 1221 and the second electromagnetic conversion portion 1222 can cover the entire light-emitting layer 11. On the one hand, the first electromagnetic conversion portion 1221 and the second electromagnetic conversion portion 1222 can serve as right and left privacy shields, respectively covering part of the light-emitting layer 11. On the other hand, the first electromagnetic conversion portion 1221 and the second electromagnetic conversion portion 1222 cooperate to cover the entire light-emitting layer 11, so that the light of the light-emitting layer 11 cannot be emitted to the outside.

[0067] The orthographic projection of one third electromagnetic conversion portion 1223 on the light-emitting layer 11 overlaps with a portion of the orthographic projection of the first electromagnetic conversion portion 1221 on the light-emitting layer 11. In other words, part of the light from the light-emitting layer 11 on the right side can pass through one side of the third electromagnetic conversion portion 1223. The orthographic projection of another third electromagnetic conversion portion 1223 on the light-emitting layer 11 overlaps with a portion of the orthographic projection of the second electromagnetic conversion portion 1222 on the light-emitting layer 11. In other words, part of the light from the light-emitting layer 11 on the left side can pass through one side of the third electromagnetic conversion portion 1223.

[0068] This embodiment defines the relationship between the first electromagnetic conversion unit 1221 , the second electromagnetic conversion unit 1222 , and the two third electromagnetic conversion units 1223 to limit the right anti-peeping viewing angle, the left anti-peeping viewing angle, and the wide-viewing anti-peeping viewing angle of the display panel 1 , thereby improving the anti-peeping effect of the display panel 1 .

[0069] Please refer to Figure 1-Figure 5 , Figure 5 A schematic diagram of the structure of a light-blocking layer provided in one embodiment of the present application. In one embodiment, the electromagnetic conversion layer 122 and the light-blocking layer 123 are both convex in a direction away from the light-emitting layer 11 .

[0070] In other words, the shapes of the electromagnetic conversion layer 122 and the light blocking layer 123 are hemispherical, nearly hemispherical, etc. By limiting the shapes of the electromagnetic conversion layer 122 and the light blocking layer 123, this embodiment not only enables the nanomagnetic particles to achieve 360° anti-peeping under the control of the electromagnetic conversion layer 122, further improving the anti-peeping effect of the display panel 1; and when the conductive layer 121 makes the electromagnetic conversion layer 122 in a non-powered state, the electromagnetic conversion layer 122 does not generate a magnetic field, and the hemispherical or nearly hemispherical light blocking layer 123 is conducive to the nanomagnetic particles to slide naturally along the cavity wall of the light blocking layer 123 under the action of gravity, so as to expose the light emitting layer 11 and emit the light of the light emitting layer 11 to the outside world.

[0071] For example, by controlling the first electromagnetic conversion unit 1221 to be in a powered-on state, the first electromagnetic conversion unit 1221 generates a magnetic field, and the nanomagnetic particles move and cover the right side of the light-emitting layer 11 under the control of the magnetic field, thereby realizing the right anti-peeping viewing angle of the display panel 1, such as Figure 5 As shown in the leftmost light blocking layer 123 .

[0072] For another example, by controlling the second electromagnetic conversion unit 1222 to be in a powered-on state, the second electromagnetic conversion unit 1222 generates a magnetic field, and the nanomagnetic particles move and cover the left side of the light-emitting layer 11 under the control of the magnetic field, thereby realizing the left anti-peeping viewing angle of the display panel 1, such as Figure 5 As shown in the rightmost light blocking layer 123.

[0073] For another example, by controlling the two third electromagnetic conversion parts 1223 to be in a powered-on state, the two third electromagnetic conversion parts 1223 generate a magnetic field, and the nano magnetic particles move and cover the opposite sides of the light-emitting layer 11 under the control of the magnetic field, thereby realizing a large viewing angle and anti-peeping viewing angle of the display panel 1, such as Figure 5 As shown in the light blocking layer 123 located in the middle.

[0074] Please refer to Figure 1-Figure 7 , Figure 6 A schematic structural diagram of a portion of a display panel provided in one embodiment of the present application. Figure 7A schematic diagram of the structure of an electromagnetic conversion layer and a second conductive portion provided in one embodiment of the present application. In one embodiment, the conductive layer 121 includes a first conductive portion 1211 and a second conductive portion 1212 electrically connected to the first conductive portion 1211, the first conductive portion 1211 is disposed on a side of the light-emitting layer 11 facing the electromagnetic conversion layer 122, and the second conductive portion 1212 is disposed on a side of the first conductive portion 1211 facing the electromagnetic conversion layer 122 and protrudes in a direction away from the light-emitting layer 11.

[0075] The light-emitting layer 11 includes a first part 11a and a second part 11b which are arranged opposite to each other in a direction perpendicular to the arrangement direction of the electromagnetic conversion layer 122 and the light-blocking layer 123. The electromagnetic conversion layer 122 includes a first electromagnetic conversion part 1221 corresponding to the first part 11a and a second electromagnetic conversion part 1222 corresponding to the second part 11b. The first electromagnetic conversion part 1221 and the second electromagnetic conversion part 1222 both include a first part 122a protruding relative to the light-emitting layer 11, and a second part 122b bent and connected to the first part 122a. The second part 122b is also connected to the second conductive part 1212.

[0076] The first conductive portion 1211, the second conductive portion 1212, and the electromagnetic conversion layer 122 are sequentially stacked on one side of the light-emitting layer 11. The second conductive portion 1212, the electromagnetic conversion layer 122, and the light-blocking layer 123 all protrude in a direction away from the light-emitting layer 11. In other words, the second conductive portion 1212, the electromagnetic conversion layer 122, and the light-blocking layer 123 are hemispherical, nearly hemispherical, or the like.

[0077] The first portion 122a of the first electromagnetic conversion portion 1221 is bent and connected to the second portion 122b of the first electromagnetic conversion portion 1221, and the first portion 122a of the first electromagnetic conversion portion 1221 is convex in a direction away from the light-emitting layer 11. In other words, the shape of the first portion 122a of the first electromagnetic conversion portion 1221 is hemispherical, nearly hemispherical, etc. One end of the second portion 122b of the first electromagnetic conversion portion 1221 is connected to the first portion 122a of the first electromagnetic conversion portion 1221, and the other end is electrically connected to the second conductive portion 1212.

[0078] The first portion 122a of the second electromagnetic conversion portion 1222 is bent and connected to the second portion 122b of the second electromagnetic conversion portion 1222, and the first portion 122a of the second electromagnetic conversion portion 1222 is convex in a direction away from the light-emitting layer 11. In other words, the shape of the first portion 122a of the second electromagnetic conversion portion 1222 is hemispherical, nearly hemispherical, etc. One end of the second portion 122b of the second electromagnetic conversion portion 1222 is connected to the first portion 122a of the second electromagnetic conversion portion 1222, and the other end is electrically connected to the second conductive portion 1212.

[0079] In this embodiment, the conductive layer 121 is split into a first conductive portion 1211 and a second conductive portion 1212, and the shape of the second conductive portion 1212 and the shape of the electromagnetic conversion layer 122 are both convex in a direction away from the light-emitting layer 11, so that the first electromagnetic conversion portion 1221 and the second electromagnetic conversion portion 1222 are electrically connected to the second conductive portion 1212, thereby improving the connection reliability between the conductive layer 121 and the electromagnetic conversion portion, thereby improving the reliability of the display panel 1. In addition, compared with only providing a flat conductive layer 121, this embodiment increases the area of ​​the conductive layer 121 that can be connected to multiple electromagnetic conversion portions by providing a convex second conductive portion 1212, thereby reducing the difficulty of electrically connecting multiple electromagnetic conversion portions to the conductive layer 121 during preparation, thereby improving the yield rate.

[0080] Please refer to Figure 1-Figure 7 In one embodiment, the electromagnetic conversion layer 122 also includes two third electromagnetic conversion parts 1223, and the two third electromagnetic conversion parts 1223 correspond to the first part 11a and the second part 11b respectively. The two third electromagnetic conversion parts 1223 also include a first part 122a protruding relative to the light-emitting layer 11, and a second part 122b bent and connected to the first part 122a.

[0081] Along the arrangement direction from the light-emitting layer 11 to the light-blocking layer 123, the first part 122a of the first electromagnetic conversion part 1221, the first part 122a of the second electromagnetic conversion part 1222, and the first part 122a of the two third electromagnetic conversion parts 1223 are stacked in sequence; the second part 122b of the first electromagnetic conversion part 1221 and the second part 122b of the second electromagnetic conversion part 1222 are both located between the second parts 122b of the two third electromagnetic conversion parts 1223.

[0082] The first portion 122a of the first electromagnetic conversion portion 1221, the first portion 122a of the second electromagnetic conversion portion 1222, and the first portions 122a of the two third electromagnetic conversion portions 1223 are sequentially stacked and insulated on the side of the second conductive portion 1212 away from the light-emitting layer 11. An insulating layer 1224 is provided between the second conductive portion 1212 and the first portion 122a of the first electromagnetic conversion portion 1221. The second portion 122b of the first electromagnetic conversion portion 1221, the second portion 122b of the second electromagnetic conversion portion 1222, and the second portions 122b of the two third electromagnetic conversion portions 1223 respectively penetrate the insulating layer 1224 and connect to the second conductive portion 1212. The first electromagnetic conversion portion 1221 and the second electromagnetic conversion portion 1222 are located between the two third electromagnetic conversion portions 1223.

[0083] This embodiment limits the positions of the first electromagnetic conversion unit 1221, the second electromagnetic conversion unit 1222, and the third electromagnetic conversion unit 1223, thereby achieving multi-directional anti-peeping display, improving the display effect of the display panel 1, reducing the difficulty of preparing multiple electromagnetic conversion units, and improving preparation efficiency.

[0084] In the related art, the anti-peeping film mainly adopts the micro-louver optical technology, and the louver uses the concave and convex direction of the blades to achieve lighting while blocking the outside view. After the anti-peeping film is attached, the brightness of the display panel 1 is passively reduced, and the original bright colors and visual effects will be greatly reduced.

[0085] Alternatively, a liquid crystal display is added on top of the normal display screen to limit the display viewing angle, but there is only one mode, which is to narrow the viewing angle to put the display screen into anti-peeping mode, or turn it off. Because the deflection of the liquid crystal will cause brightness loss, this structural principle requires increasing the output brightness based on the original display panel 1 to meet the normal brightness display requirements.

[0086] Please refer to Figure 1-Figure 7 In one embodiment, the light blocking module 12 also includes a one-way light-transmitting reflective film 16 disposed between the light-emitting layer 11 and the light-blocking layer 123, and the one-way light-transmitting reflective film 16 corresponds to the light-emitting layer 11 and the light-blocking layer 123, and the one-way light-transmitting reflective film 16 is used to transmit the light from the light-emitting layer 11 and reflect the light reflected by the nanomagnetic particles.

[0087] The light blocking module 12 provided in this embodiment further includes a one-way light-transmitting reflective film 16, which is used to transmit light from the light-emitting layer 11 and reflect light reflected by the nanomagnetic particles, and the light reflected by the one-way light-transmitting reflective film 16 can be emitted from the display panel 1. For example, the one-way light-transmitting reflective film 16, the conductive layer 121, the electromagnetic conversion layer 122, and the light blocking layer 123 are sequentially stacked on one side of the light-emitting layer 11. For another example, the conductive layer 121, the one-way light-transmitting reflective film 16, the electromagnetic conversion layer 122, and the light blocking layer 123 are sequentially stacked on one side of the light-emitting layer 11.

[0088] In this embodiment, a one-way light-transmitting reflective film 16 is added between the light-emitting layer 11 and the light-blocking layer 123 to reuse the light reflected by the nanomagnetic particles, thereby increasing the brightness of the display panel 1 and ensuring the light extraction rate without affecting the screen brightness and color, thereby improving the display effect of the display panel 1.

[0089] Therefore, the display panel 1 provided in this embodiment can not only realize the switchable anti-peeping mode, but also dynamically adjust the anti-peeping viewing angle. The direction of the visual viewing angle can be selected in the anti-peeping mode, so as to achieve a function of 360-degree adjustment of the anti-peeping visual viewing angle. The anti-peeping design set in the display panel 1 does not affect the screen brightness and color within the full viewing angle range, and can meet the user's high-level quality requirements. In other words, the display panel 1 provided in this embodiment can achieve multi-mode and multi-angle anti-peeping. Moreover, the brightness is not reduced while preventing peeping. The display panel 1 has a simple structure, is easy to implement, has a clear display, and is low in cost.

[0090] The present application also provides an electronic device, which includes a housing and a display panel as provided above in the present application, wherein the display panel is mounted on the housing.

[0091] The electronic device provided in this embodiment adopts the display panel provided in the above application. By utilizing the electromagnetic conversion layer, the nanomagnetic particles are controlled to cover at least a portion of the light-emitting layer to achieve dynamic adjustment of the anti-peeping viewing angle. The user can choose different visual viewing angles in the anti-peeping mode to achieve multi-directional anti-peeping display, thereby improving the display effect of the display panel.

[0092] The above is a detailed introduction to the contents provided in the implementation mode of the present application. This article explains and illustrates the principles and implementation modes of the present application. The above explanation is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation mode and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. A display panel, characterized in that: The display panel comprises: Luminescent layer; A light-blocking module is arranged on one side of the light-emitting layer, the light-blocking module comprises a conductive layer, an electromagnetic conversion layer electrically connected to the conductive layer, and a light-blocking layer, the light-blocking layer is arranged on a surface of the electromagnetic conversion layer away from the light-emitting layer and / or a surface of the electromagnetic conversion layer facing the light-emitting layer, the electromagnetic conversion layer and the light-blocking layer both correspond to the light-emitting layer, at least a part of the electromagnetic conversion layer is used to generate a magnetic field, the light-blocking layer has a plurality of nanomagnetic particles for reflecting light, and the plurality of nanomagnetic particles can move relative to the light-emitting layer under the control of the magnetic field; When the conductive layer makes the electromagnetic conversion layer in a powered-on state, at least part of the electromagnetic conversion layer generates a magnetic field, and the nanomagnetic particles move and cover at least part of the electromagnetic conversion layer generating the magnetic field under the control of the magnetic field, thereby covering at least part of the light-emitting layer and reflecting light from the light-emitting layer; The light-emitting layer includes a first part and a second part which are arranged opposite to each other in a direction perpendicular to the arrangement direction of the electromagnetic conversion layer and the light-blocking layer; the electromagnetic conversion layer includes a first electromagnetic conversion part and a second electromagnetic conversion part, the first electromagnetic conversion part corresponds to the first part, the second electromagnetic conversion part corresponds to the second part, and the first electromagnetic conversion part and the second electromagnetic conversion part are stacked on one side of the light-emitting layer and are insulated.

2. The display panel according to claim 1, wherein: The electromagnetic conversion layer also includes two third electromagnetic conversion parts, which correspond to the first part and the second part respectively, and the two third electromagnetic conversion parts are arranged at intervals; the first electromagnetic conversion part, the second electromagnetic conversion part, and the two third electromagnetic conversion parts are stacked and insulated in sequence along the arrangement direction from the light-emitting layer to the light-blocking layer.

3. The display panel according to claim 2, wherein: The orthographic projections of the first electromagnetic conversion part and the second electromagnetic conversion part on the light-emitting layer are connected; the orthographic projection of one of the third electromagnetic conversion parts on the light-emitting layer coincides with a partial orthographic projection of the first electromagnetic conversion part on the light-emitting layer, and the orthographic projection of another third electromagnetic conversion part on the light-emitting layer coincides with a partial orthographic projection of the second electromagnetic conversion part on the light-emitting layer.

4. The display panel according to claim 1, wherein: The electromagnetic conversion layer and the light blocking layer both protrude in a direction away from the light emitting layer.

5. The display panel according to claim 4, wherein: The conductive layer comprises a first conductive portion and a second conductive portion electrically connected to the first conductive portion, wherein the first conductive portion is disposed on a side of the light-emitting layer facing the electromagnetic conversion layer, and the second conductive portion is disposed on a side of the first conductive portion facing the electromagnetic conversion layer and protrudes in a direction away from the light-emitting layer; The light-emitting layer includes a first part and a second part which are arranged opposite to each other in a direction perpendicular to the arrangement direction of the electromagnetic conversion layer and the light-blocking layer. The electromagnetic conversion layer includes a first electromagnetic conversion part corresponding to the first part and a second electromagnetic conversion part corresponding to the second part. The first electromagnetic conversion part and the second electromagnetic conversion part both include a first part which is protruding relative to the light-emitting layer, and a second part which is bent and connected to the first part. The second part is also connected to the second conductive part.

6. The display panel according to claim 5, wherein: The electromagnetic conversion layer further includes two third electromagnetic conversion parts, the two third electromagnetic conversion parts respectively corresponding to the first part and the second part, and the two third electromagnetic conversion parts further include a first part protruding relative to the light-emitting layer, and a second part bent and connected to the first part; Along the arrangement direction from the light-emitting layer to the light-blocking layer, the first part of the first electromagnetic conversion unit, the first part of the second electromagnetic conversion unit, and the first parts of the two third electromagnetic conversion units are stacked in sequence; the second part of the first electromagnetic conversion unit and the second part of the second electromagnetic conversion unit are both located between the second parts of the two third electromagnetic conversion units.

7. The display panel according to any one of claims 1 to 6, characterized in that: The light blocking module also includes a one-way light-transmitting reflective film arranged between the light-emitting layer and the light-blocking layer, the one-way light-transmitting reflective film corresponds to the light-emitting layer and the light-blocking layer, and is used to transmit light from the light-emitting layer and reflect light reflected by the nanomagnetic particles.

8. An electronic device, characterized in that: The electronic device comprises a housing and a display panel as described in any one of claims 1 to 7, wherein the display panel is mounted on the housing.

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