Display panel

Abstract

Disclosed in embodiments of the present application is a display panel. A peep-proof structure layer is disposed on a light-emitting layer. The peep-proof structure layer comprises a first light-transmissive layer and a second light-transmissive layer, the first light-transmissive layer at least comprises a component part, and the component part and light-emitting pixels overlap. The component part comprises a first part, the first part and the second light-transmissive layer form a first total reflection interface, and the first total reflection interface is configured to reflect part of light to the backlight side of the display panel.

Description

Display panel Technical Field

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

[0002] Organic light-emitting diode (OLED) panels are widely used in smartphones. When using smartphones in public places, preventing peeping is a key user requirement. Currently, the mainstream anti-peeping feature is achieved through privacy films, which narrow the viewing angle by controlling the grating in the film. However, this method dims the screen brightness and increases power consumption. SUMMARY OF THE INVENTION

[0003] An embodiment of the present application provides a display panel that can implement an anti-peeping function.

[0004] An embodiment of the present application provides a display panel, comprising:

[0005] Driver substrate;

[0006] a light-emitting layer, the light-emitting layer being disposed on the driving substrate and comprising a plurality of light-emitting pixels, and

[0007] an anti-peeping structure layer, the anti-peeping structure layer being disposed on the light-emitting layer; the anti-peeping structure layer comprising a first light-transmitting layer and a second light-transmitting layer, the first light-transmitting layer being disposed on a side of the light-emitting layer away from the driving substrate, and the second light-transmitting layer being disposed on a side of the first light-transmitting layer away from the driving substrate;

[0008] The first light-transmitting layer at least includes a component portion, and the component portion is arranged to overlap with the light-emitting pixel;

[0009] The component portion includes a first portion, the first portion and the second light-transmitting layer form a first total reflection interface, and the first total reflection interface is configured to reflect part of the light to the backlight side of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG1 is a schematic structural diagram of a display panel provided in Example 1 of the present application;

[0011] FIG2 is a light path diagram of a display panel provided in Example 1 of the present application;

[0012] FIG3 is a schematic structural diagram of a display panel provided in Example 2 of the present application;

[0013] FIG4 is a light path diagram of a display panel provided in Example 2 of the present application;

[0014] FIG5 is a schematic structural diagram of a display panel provided in Example 3 of the present application;

[0015] FIG6 is a light path diagram of the display panel provided in the third embodiment of the present application. Modes for Carrying Out the Invention

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device; the terms "first", "second", "third", etc. are used only as labels and do not impose numerical requirements or establish an order.

[0017] The present application provides a display panel, which is described in detail below. It should be noted that the order of description of the following embodiments does not limit the preferred order of the embodiments.

[0018] An embodiment of the present application provides a display panel, comprising:

[0019] Driver substrate;

[0020] a light-emitting layer, the light-emitting layer being disposed on the driving substrate and comprising a plurality of light-emitting pixels, and

[0021] an anti-peeping structure layer, the anti-peeping structure layer being disposed on the light-emitting layer; the anti-peeping structure layer comprising a first light-transmitting layer and a second light-transmitting layer, the first light-transmitting layer being disposed on a side of the light-emitting layer away from the driving substrate, and the second light-transmitting layer being disposed on a side of the first light-transmitting layer away from the driving substrate;

[0022] The first light-transmitting layer at least includes a component portion, and the component portion is arranged to overlap with the light-emitting pixel;

[0023] The component portion includes a first portion, the first portion and the second light-transmitting layer form a first total reflection interface, and the first total reflection interface is configured to reflect part of the light to the backlight side of the display panel.

[0024] Optionally, in some embodiments of the present application, the anti-peeping structure layer further includes a third light-transmitting layer, the third light-transmitting layer is disposed on a side of the first light-transmitting layer close to the light-emitting layer, and the third light-transmitting layer is provided with openings corresponding to the light-emitting pixels;

[0025] The component also includes a second portion arranged on a side of the first portion away from the drive substrate. The second portion is arranged in the opening and forms a second total reflection interface with the side wall of the opening. The second total reflection interface is configured to reduce the emission angle of part of the light.

[0026] Optionally, in some embodiments of the present application, the refractive index of the second light-transmitting layer is smaller than the refractive index of the component portion, and the refractive index of the third light-transmitting layer is smaller than the refractive index of the component portion.

[0027] Optionally, in some embodiments of the present application, in a direction from the driving substrate toward the anti-peek structure layer, the width of the first portion of the component portion decreases, and the width of the second portion of the component portion increases.

[0028] Optionally, in some embodiments of the present application, in the component portion, the bottom surface of the second portion is arranged opposite to the top surface of the first portion, and the top surface of the first portion is located on a side of the bottom surface of the second portion away from the drive substrate;

[0029] The side surface of the first part and the plane where the top surface of the first part is located have a first angle, and the side surface of the second part and the plane where the bottom surface of the second part is located have a second angle, the first angle is greater than or equal to 50 degrees and less than or equal to 75 degrees, and the second angle is greater than or equal to 50 degrees and less than or equal to 75 degrees.

[0030] Optionally, in some embodiments of the present application, the thickness of the third light-transmitting layer is between 1.5 and 2.5 microns, and the thickness of the component portion is between 3 and 4 microns.

[0031] Optionally, in some embodiments of the present application, the first angle is equal to the second angle.

[0032] Optionally, in some embodiments of the present application, the side surface of the first part is connected to the side surface of the second part.

[0033] Optionally, in some embodiments of the present application, the first light-transmitting layer further includes an intermediate layer, the intermediate layer is connected to the component portion, and the intermediate layer is arranged on a side of the third light-transmitting layer away from the driving substrate.

[0034] Optionally, in some embodiments of the present application, the refractive index of the first light-transmitting layer is greater than or equal to 1.7, the refractive index of the second light-transmitting layer is less than or equal to 1.5, and the refractive index of the third light-transmitting layer is less than or equal to 1.5.

[0035] Optionally, in some embodiments of the present application, the display panel further includes an encapsulation layer, and the encapsulation layer is disposed between the light-emitting layer and the anti-peeping structure layer;

[0036] The encapsulation layer includes a first inorganic layer, an organic encapsulation layer, and a second inorganic layer stacked in sequence, or the encapsulation layer is an inorganic encapsulation layer.

[0037] This embodiment further provides a display panel, including:

[0038] Driver substrate;

[0039] a light-emitting layer, the light-emitting layer being disposed on the driving substrate and comprising a plurality of light-emitting pixels, and

[0040] an anti-peeping structure layer, the anti-peeping structure layer being disposed on the light-emitting layer; the anti-peeping structure layer comprising a first light-transmitting layer and a second light-transmitting layer, the first light-transmitting layer being disposed on a side of the light-emitting layer away from the driving substrate, and the second light-transmitting layer being disposed on a side of the first light-transmitting layer away from the driving substrate;

[0041] The first light-transmitting layer at least includes a component portion, and the component portion is arranged to overlap with the light-emitting pixel;

[0042] The component portion includes a first portion, the first portion and the second light-transmitting layer form a first total reflection interface, and the first total reflection interface is configured to reflect part of the light to the backlight side of the display panel;

[0043] The anti-peeping structure layer further includes a third light-transmitting layer, the third light-transmitting layer being arranged on a side of the first light-transmitting layer close to the light-emitting layer, and the third light-transmitting layer being provided with openings corresponding to the light-emitting pixels;

[0044] The component portion further includes a second portion disposed on a side of the first portion away from the drive substrate, the second portion being disposed within the opening and forming a second total reflection interface with a sidewall of the opening, the second total reflection interface being configured to reduce an exit angle of some light;

[0045] The display panel further includes an encapsulation layer, which is arranged between the light-emitting layer and the anti-peeping structure layer; the encapsulation layer includes a first inorganic layer, an organic encapsulation layer, and a second inorganic layer which are stacked in sequence.

[0046] Optionally, in some embodiments of the present application, the refractive index of the second light-transmitting layer is smaller than the refractive index of the component portion, and the refractive index of the third light-transmitting layer is smaller than the refractive index of the component portion.

[0047] Optionally, in some embodiments of the present application, in a direction from the driving substrate toward the anti-peek structure layer, the width of the first portion of the component portion decreases, and the width of the second portion of the component portion increases.

[0048] Optionally, in some embodiments of the present application, in the component portion, the bottom surface of the second portion is arranged opposite to the top surface of the first portion, and the top surface of the first portion is located on a side of the bottom surface of the second portion away from the drive substrate;

[0049] The side surface of the first part and the plane where the top surface of the first part is located have a first angle, and the side surface of the second part and the plane where the bottom surface of the second part is located have a second angle, the first angle is greater than or equal to 50 degrees and less than or equal to 75 degrees, and the second angle is greater than or equal to 50 degrees and less than or equal to 75 degrees.

[0050] Optionally, in some embodiments of the present application, the thickness of the third light-transmitting layer is between 1.5 and 2.5 microns, and the thickness of the component portion is between 3 and 4 microns.

[0051] Optionally, in some embodiments of the present application, the first angle is equal to the second angle.

[0052] Optionally, in some embodiments of the present application, the side surface of the first part is connected to the side surface of the second part.

[0053] Optionally, in some embodiments of the present application, the first light-transmitting layer further includes an intermediate layer, the intermediate layer is connected to the component portion, and the intermediate layer is arranged on a side of the third light-transmitting layer away from the driving substrate.

[0054] Optionally, in some embodiments of the present application, the refractive index of the first light-transmitting layer is greater than or equal to 1.7, the refractive index of the second light-transmitting layer is less than or equal to 1.5, and the refractive index of the third light-transmitting layer is less than or equal to 1.5.

[0055] The display panel of the embodiment of the present application is provided with a component portion and a second light-transmitting layer on the light-emitting side of the light-emitting pixel, and the component portion and the second light-transmitting layer are in contact to form a first total reflection interface. When light at a large angle is radiated to the first total reflection interface, it is reflected to the backlight side by the first total reflection interface, thereby reducing the emission of light at a large angle, thereby realizing an anti-peek function.

[0056] Example 1

[0057] Referring to Figures 1 and 2, an embodiment of the present application provides a display panel 100, which includes a driving substrate 10, a light-emitting layer 20, and an anti-peeping structure layer 30. The light-emitting layer 20 is disposed on the driving substrate 10. The light-emitting layer 20 includes a plurality of light-emitting pixels 21. The anti-peeping structure layer 30 is disposed on the light-emitting layer 20. The anti-peeping structure layer 30 includes a first light-transmitting layer 31 and a second light-transmitting layer 32. The first light-transmitting layer 31 is disposed on a side of the light-emitting layer 20 away from the driving substrate 10. The second light-transmitting layer 32 is disposed on a side of the first light-transmitting layer 31 away from the driving substrate 10. The first light-transmitting layer 31 includes at least a component portion 311, and the component portion 311 is disposed overlapping with the light-emitting pixels 21. The component portion 311 includes a first portion 31a, and the first portion 31a and the second light-transmitting layer 32 form a first total reflection interface f1. The first total reflection interface f1 is configured to reflect part of the light to the backlight side of the display panel 100.

[0058] In the embodiment of the present application, a component portion 311 and a second light-transmitting layer 32 are arranged on the light-emitting side of the light-emitting pixel 21, and the component portion 311 and the second light-transmitting layer 32 are in contact to form a first total reflection interface f1. When light with a large angle is radiated to the first total reflection interface f1, it is reflected by the first total reflection interface f1 to the backlight side, reducing the emission of light with a large angle, thereby realizing an anti-peeping function.

[0059] Optionally, the driving substrate 10 includes a substrate and a driving circuit layer disposed on the substrate. The driving circuit layer includes thin film transistors and capacitors, etc. The substrate can be a flexible substrate or a hard substrate.

[0060] Optionally, the light-emitting layer 20 can be a single-layer organic emission layer or a single-layer inorganic emission layer, such as Alq3, bis(2-methyl-8-hydroxyquinoline-N1,O8)-(1,1'-biphenyl-4-hydroxy)aluminum (BAlq), DPVBi, Almq3, 3-tert-butyl-9,10-di(2-naphthalene)anthracene (TBADN) or quantum dots, etc.

[0061] In addition, the light emitting layer 20 may also be a stacked structure including a hole injection layer, a hole transport layer, an emission layer, an electron transport layer, and an electron injection layer.

[0062] It should be noted that an anode is provided on one side of the light-emitting layer 20 , and a cathode is provided on the other side of the light-emitting layer 20 to enable the light-emitting layer 20 to emit light.

[0063] Optionally, there are multiple types of light-emitting pixels 21, such as red light-emitting pixels 21, green light-emitting pixels 21, and blue light-emitting pixels 21. One first total reflection interface f1 is correspondingly provided for each light-emitting pixel 21.

[0064] Optionally, in the orthographic projection direction of the display panel 100, the pattern of the luminous pixels 21 is completely located within the pattern of the component portion 311. That is, the component portion 311 completely covers the luminous pixels 21, so that the light emitted by the luminous pixels 21 is radiated to the first total reflection interface f1 as much as possible, thereby improving the anti-peeping effect.

[0065] Optionally, the width of the top surface of the first portion 31 a of the component portion 311 is greater than or equal to the width of the light-emitting pixel 21 to improve light extraction efficiency.

[0066] Optionally, the refractive index of the second light-transmitting layer 32 is smaller than the refractive index of the component portion 311 , so that the connection interface between the component portion 311 and the second light-transmitting layer 32 forms a total reflection interface.

[0067] Optionally, the refractive index of the first light-transmitting layer 31 is greater than or equal to 1.7, and the refractive index of the second light-transmitting layer 32 is less than or equal to 1.5. For example, the refractive index of the first light-transmitting layer 31 may be 1.7, 1.8, or 1.9, and the refractive index of the second light-transmitting layer 32 may be 1.5, 1.4, 1.3, 1.2, or 1.1, etc.

[0068] In some embodiments, the refractive index of the first light-transmitting layer 31 may be less than 1.7, and the refractive index of the second light-transmitting layer 32 may be greater than 1.5, as long as the component portion 311 of the first light-transmitting layer 31 contacts the second light-transmitting layer 32 to form a total reflection interface.

[0069] Optionally, the material of the first light-transmitting layer 31 may include an organic resin, such as an acrylic resin, etc. The material of the second light-transmitting layer 32 may include an acrylic or epoxy organic resin. Of course, the first light-transmitting layer 31 and the second light-transmitting layer 32 may also be formed of an inorganic material.

[0070] Optionally, the width of the first portion 31 a of the component portion 311 decreases gradually in a direction from the driving substrate 10 to the anti-peek structure layer 30 .

[0071] Specifically, the first portion 31a of the component portion 311 is narrow at the top and wide at the bottom. For example, its vertical cross-section may be trapezoidal or quasi-trapezoidal. When light at a large angle strikes the side of the first portion 31a, it is reflected off the side surface to the top surface of the first portion 31a, where it is then reflected back to the backlight side. To further enhance privacy protection, light can be directed at a large angle to the top surface of the first portion 31a, where it is directly reflected back to the backlight side.

[0072] Optionally, a side surface of the first portion 31 a and a plane where the top surface of the first portion 31 a lies have a first angle a1 , and the first angle a1 is greater than or equal to 50 degrees and less than or equal to 75 degrees.

[0073] It can be understood that when the first angle a1 is smaller, the amount of light radiated to the side is more, the more light is reflected, and the better the anti-peeping effect is; when the first angle a1 is larger, the amount of light radiated to the side is smaller, the less light is reflected, the worse the anti-peeping effect is but the better the light output effect is.

[0074] In this embodiment, by setting the first angle a1 to be greater than or equal to 50 degrees and less than or equal to 75 degrees, the anti-peeping effect is ensured and the risk of the light being too dark is avoided.

[0075] Optionally, the first angle a1 may be 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70 degrees or 75 degrees.

[0076] Optionally, the thickness of the component portion 311 is between 0.5 and 2.5 microns. It is understood that when the thickness of the component portion 311 is greater, more light is radiated to the side, more light is reflected, and the anti-peeping effect is better; when the thickness of the component portion 311 is smaller, the amount of light radiated to the side is less, the light is reflected less, the anti-peeping effect is worse, but the light extraction effect is better.

[0077] In this embodiment, by setting the thickness of the component portion 311 to be between 0.5 and 2.5 microns, the anti-peeping effect is ensured and the risk of the light output being too dark is avoided.

[0078] Optionally, the thickness of the component portion 311 may be 0.5 micrometers, 0.6 micrometers, 0.7 micrometers, 0.8 micrometers, 0.9 micrometers, 1 micrometer, 1.2 micrometers, 1.4 micrometers, 1.6 micrometers, 1.8 micrometers, 2 micrometers, 2.3 micrometers, or 2.5 micrometers.

[0079] In addition, in this embodiment, the first angle a1 is set to be greater than or equal to 50 degrees and less than or equal to 75 degrees, and the thickness of the component portion 311 is set to be between 0.5 and 2.5 microns, so as to achieve the anti-peeping function while reducing the risk of dim light output from the display panel 100.

[0080] Optionally, the thickness of the second light-transmitting layer 32 is between 4 and 15 microns, such as 4 microns, 5 microns, 6 microns, 7 microns, 8 microns, 9 microns, 10 microns or 15 microns, etc. The second light-transmitting layer 32 has a greater thickness to smooth the convex topography of the component portion 311 .

[0081] Optionally, the display panel 100 further includes an encapsulation layer 40 , which is disposed between the light-emitting layer 20 and the anti-peeping structure layer 30 .

[0082] The encapsulation layer 40 includes a first inorganic layer, an organic encapsulation layer, and a second inorganic layer stacked in sequence.

[0083] In some embodiments, the encapsulation layer 40 is an inorganic encapsulation layer. That is, the encapsulation layer 40 is a single inorganic layer, and the anti-peeping structure layer 30 also serves as an encapsulation layer, thereby achieving the effect of thinning the display panel 100 .

[0084] In this embodiment, the display panel 100 may further include a touch layer 50, which is disposed between the encapsulation layer 40 and the privacy protection layer 30. The touch layer 50 is disposed on the side of the privacy protection layer 30 that is closer to the light-emitting layer 20, thereby reducing the risk of more light being blocked by the touch layer 50 and the risk of low light output brightness.

[0085] In this embodiment, the display panel 100 may further include an optical function layer 60, which is disposed on a side of the anti-privacy structure layer 30 away from the substrate 10. Optionally, the optical function layer 60 may include a polarizing layer, an optical adhesive layer, and a cover plate sequentially stacked on the anti-privacy structure layer 30.

[0086] Example 2

[0087] 3 and 4 , compared to the first embodiment, the second embodiment differs from the first embodiment in that the anti-peeping structure layer 30 further includes a third light-transmitting layer 33, which is disposed on a side of the first light-transmitting layer 31 close to the light-emitting layer 20. The third light-transmitting layer 33 is provided with openings 331 corresponding to the light-emitting pixels 21.

[0088] The member 311 further includes a second portion 31b disposed on a side of the first portion 31a away from the drive substrate 10. The second portion 31b is disposed within the opening 331 and forms a second total reflection interface f2 with the sidewall of the opening 331. The second total reflection interface f2 is configured to reduce the emission angle of some light rays.

[0089] When the light emitted by the luminous pixel 21 radiates to the second total reflection interface f2, it is reflected by the second total reflection interface f2, which reduces the emission angle, further improves the anti-peeping effect, and achieves a focusing effect to increase the brightness of the light emitted by the display panel 100.

[0090] Optionally, the refractive index of the third light-transmitting layer 33 is smaller than the refractive index of the component portion 311 , so that the connection interface between the component portion 311 and the third light-transmitting layer 33 forms a total reflection interface.

[0091] Optionally, the refractive index of the third light-transmitting layer 33 is greater than or equal to 1.7. The refractive index of the third light-transmitting layer 33 is less than or equal to 1.5. For example, the refractive index of the first light-transmitting layer 31 may be 1.7, 1.8, or 1.9, and the refractive index of the third light-transmitting layer 33 may be 1.5, 1.4, 1.3, 1.2, or 1.1.

[0092] In some embodiments, the refractive index of the first light-transmitting layer 31 may be less than 1.7, and the refractive index of the third light-transmitting layer 33 may be greater than 1.5, as long as the component portion 311 of the first light-transmitting layer 31 contacts the third light-transmitting layer 33 to form a total reflection interface.

[0093] Optionally, the first portion 31 a and the second portion 31 b are integrally formed with the same material to improve manufacturing efficiency and avoid the risk of light path change within the component portion 311 .

[0094] Optionally, the top width of the first portion 31 a is greater than the bottom width of the second portion 31 b , and the bottom width of the second portion 31 b is greater than or equal to the width of the light-emitting pixel 21 , so as to improve light brightness.

[0095] Optionally, in the cross-sectional structure diagram, the pattern of the component portion 311 and the pattern of the light-emitting pixel 21 are coaxially arranged.

[0096] Optionally, in a direction from the driving substrate 10 to the anti-peek structure layer 30 , the width of the first portion 31 a of the component portion 311 decreases gradually, and the width of the second portion 31 b of the component portion 311 increases gradually.

[0097] Specifically, the first portion 31a of the component portion 311 is narrow at the top and wide at the bottom. For example, its vertical cross-section may be trapezoidal or quasi-trapezoidal. When light at a large angle strikes the side of the first portion 31a, it is reflected off the side surface to the top surface of the first portion 31a, where it is then reflected back to the backlight side. To further enhance privacy protection, light can be directed at a large angle to the top surface of the first portion 31a, where it is directly reflected back to the backlight side.

[0098] The second portion 31b of the component portion 311 has a structure that is wider at the top and narrower at the bottom. For example, its vertical cross-section has an inverted trapezoidal or quasi-inverted trapezoidal shape. When light at a large angle strikes the side of the second portion 31b, it is reflected from the side, thereby reducing the angle of emission, further improving the privacy protection effect and increasing the brightness of the light.

[0099] In this embodiment, the second portion 31b is located near the light-emitting layer 20, so that light with a large angle is reflected by the second total reflection interface f2 as light with a smaller angle, which is then emitted. This achieves an anti-peeping effect and improves the brightness of the light output. Furthermore, the first portion 31a is located away from the light-emitting layer 20, so that light with a large angle is blocked by the first total reflection interface f1, further improving the viewing angle range of the anti-peeping effect. Therefore, compared to grating-type privacy films, this embodiment has better light output brightness and greater adjustability of the privacy protection angle.

[0100] Optionally, in the member portion 311 , the bottom surface of the second portion 31 b is disposed opposite to the top surface of the first portion 31 a . The top surface of the first portion 31 a is located on a side of the bottom surface of the second portion 32 b away from the drive substrate 10 .

[0101] The side surface of the first portion 31a forms a first angle a1 with the plane containing the top surface of the first portion 31a. The side surface of the second portion 31b forms a second angle a2 with the plane containing the bottom surface of the second portion 31b. The first angle a1 is greater than or equal to 50 degrees and less than or equal to 75 degrees. The second angle a2 is greater than or equal to 50 degrees and less than or equal to 75 degrees.

[0102] It can be understood that when the second angle a2 is smaller, the amount of light radiated to the side is less, the less light is reflected, and the worse the anti-peeping effect is; when the second angle a2 is larger, the amount of light radiated to the side is more, the more light is reflected, the better the anti-peeping effect and the better the light output effect.

[0103] In this embodiment, by setting the second angle a2 to be greater than or equal to 50 degrees and less than or equal to 75 degrees, the anti-peeping effect is ensured and the risk of the light output being too dark is avoided.

[0104] Optionally, the second angle a2 may be 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70 degrees or 75 degrees.

[0105] In this embodiment, the first angle a1 is set to be greater than or equal to 50 degrees and less than or equal to 75 degrees, and the second angle a2 is set to be greater than or equal to 50 degrees and less than or equal to 75 degrees, so as to improve the light output effect when the anti-peeping viewing angle is appropriate.

[0106] Optionally, the second angle a2 is greater than the first angle a1 to improve the light extraction effect.

[0107] In some embodiments, the first angle a1 is equal to the second angle a2.

[0108] Optionally, the thickness of the third light-transmitting layer 33 is between 1.5 and 2.5 micrometers. The thickness of the component portion 311 is between 3 and 4 micrometers.

[0109] Optionally, the thickness of the second portion 31b is equal to the thickness of the third light-transmitting layer 33. The thickness of the third light-transmitting layer 33 is between 1.5 and 2.5 microns. It is understood that when the thickness of the third light-transmitting layer 33 is greater, more light is radiated to the sides of the second portion 31b, more light is reflected, and the anti-peeping effect and light extraction effect are better. When the thickness of the third light-transmitting layer 33 is smaller, less light is radiated to the sides, less light is reflected, and the anti-peeping effect and light extraction effect are worse.

[0110] In this embodiment, by setting the thickness of the component portion 311 to be between 3 and 4 microns, the anti-peeping effect is ensured and the risk of the light output being too dark is avoided.

[0111] Optionally, the thickness of the component portion 311 may be 3 micrometers, 3.1 micrometers, 3.2 micrometers, 3.3 micrometers, 3.4 micrometers, 3.5 micrometers, 3.6 micrometers, 3.7 micrometers, 3.8 micrometers, 3.9 micrometers, or 4 micrometers.

[0112] The thickness of the third light-transmitting layer 33 may be 1.5 micrometers, 1.6 micrometers, 1.7 micrometers, 1.8 micrometers, 1.9 micrometers, 2 micrometers, 2.1 micrometers, 2.2 micrometers, 2.3 micrometers, 2.4 micrometers, or 2.5 micrometers.

[0113] In addition, in this embodiment, the second angle a2 is set to be greater than or equal to 50 degrees and less than or equal to 75 degrees, and the thickness of the component portion 311 is between 3 and 4 microns, so as to reduce the risk of dim light output from the display panel 100 while achieving the anti-peeping function.

[0114] Optionally, the thickness of the first portion 31 a is smaller than the thickness of the second portion 31 b , so as to improve light extraction efficiency while maintaining the same anti-peeping viewing angle.

[0115] Optionally, the side surface of the first portion 31a is connected to the side surface of the second portion 31b. In this embodiment, the side surface of the first portion 31a is connected to the side surface of the second portion 31b to improve the anti-peeping effect.

[0116] Example 3:

[0117] 5 and 6 , the third embodiment differs from any of the above embodiments in that the first light-transmitting layer 31 further includes an intermediate layer 312 . The intermediate layer 312 is connected to the component portion 311 and is disposed on a side of the third light-transmitting layer 33 away from the driving substrate 10 .

[0118] Because the intermediate layer 312 is connected to the component portion 311 and the two are integrally formed and made of the same material, some of the light can be emitted through the connection between the intermediate layer 312 and the component portion 311, thereby improving the brightness of the light output. In addition, because the intermediate layer 312 is attached between the second light-transmitting layer 32 and the third light-transmitting layer 33, the stability of the attachment between the second light-transmitting layer 32 and the third light-transmitting layer 33 is improved, reducing the risk of separation of the inner film layer of the anti-peek structure layer 30.

[0119] Optionally, the thickness of the intermediate layer 312 is less than or equal to 3 micrometers, for example, it can be 3 micrometers, 2.5 micrometers, 2 micrometers, 1.5 micrometers, 1 micrometer or 0.5 micrometer.

[0120] It can be understood that the thinner the thickness of the intermediate layer 312, the more high-angle light that hits the first total reflection interface f1, resulting in a better privacy protection effect. The thicker the intermediate layer 312, the less high-angle light that hits the first total reflection interface f1, resulting in a poorer privacy protection effect but better light output brightness. Therefore, the thickness of the intermediate layer 312 is less than or equal to 3 microns to ensure a balance between privacy protection effect and light output brightness.

[0121] Optionally, the refractive index of the intermediate layer 312 is greater than that of the second light-transmitting layer 32 and the third light-transmitting layer 33, so that the intermediate layer 312 forms a total internal reflection interface with the second light-transmitting layer 32 and the third light-transmitting layer 33, respectively, thereby causing the intermediate layer 312 to form an optical waveguide layer. When light at a large angle is radiated into the intermediate layer 312, the light propagates through the intermediate layer 312 until it reaches the component portion 311. Part of the light is radiated to the backlight side through the component portion 311, thereby improving the privacy protection effect. Part of the light is emitted after the component portion 311 reduces the exit angle, thereby improving the light extraction efficiency.

[0122] The above is a detailed introduction to a display panel provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, based on the ideas of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, comprising: Driver substrate; a light-emitting layer, the light-emitting layer being disposed on the driving substrate, the light-emitting layer comprising a plurality of light-emitting pixels, and an anti-peeping structure layer, the anti-peeping structure layer being arranged on the light-emitting layer; the anti-peeping structure layer comprising a first light-transmitting layer and a second light-transmitting layer, the first light-transmitting layer being arranged on a side of the light-emitting layer away from the driving substrate, and the second light-transmitting layer being arranged on a side of the first light-transmitting layer away from the driving substrate; The first light-transmitting layer at least includes a component part, and the component part is arranged overlapping with the light-emitting pixel; The component portion includes a first portion, the first portion and the second light-transmitting layer form a first total reflection interface, and the first total reflection interface is configured to reflect part of the light to the backlight side of the display panel.

2. The display panel according to claim 1, wherein: The anti-peep structure layer further includes a third light-transmitting layer, the third light-transmitting layer is arranged on a side of the first light-transmitting layer close to the light-emitting layer, and the third light-transmitting layer is provided with an opening corresponding to the light-emitting pixel; The component part also includes a second part arranged on a side of the first part away from the drive substrate, the second part is arranged in the opening and forms a second total reflection interface with the side wall of the opening, and the second total reflection interface is configured to reduce the emission angle of part of the light.

3. The display panel according to claim 2, wherein: The refractive index of the second light-transmitting layer is smaller than the refractive index of the member portion, and the refractive index of the third light-transmitting layer is smaller than the refractive index of the member portion.

4. The display panel according to claim 2, wherein: In a direction from the driving substrate to the anti-peeping structure layer, the width of the first part of the component portion decreases gradually, and the width of the second part of the component portion increases gradually.

5. The display panel according to claim 4, wherein: In the component part, the bottom surface of the second part is arranged opposite to the top surface of the first part, and the top surface of the first part is located on a side of the bottom surface of the second part away from the drive substrate; The side surface of the first part and the plane where the top surface of the first part is located have a first angle, the side surface of the second part and the plane where the bottom surface of the second part is located have a second angle, the first angle is greater than or equal to 50 degrees and less than or equal to 75 degrees, and the second angle is greater than or equal to 50 degrees and less than or equal to 75 degrees.

6. The display panel according to claim 5, wherein: The thickness of the third light-transmitting layer is between 1.5 and 2.5 micrometers, and the thickness of the component part is between 3 and 4 micrometers.

7. The display panel according to claim 5, wherein: The first angle is equal to the second angle.

8. The display panel according to claim 5, wherein: The side surface of the first portion is connected to the side surface of the second portion.

9. The display panel according to claim 3, wherein: The first light-transmitting layer further includes an intermediate layer, the intermediate layer is connected to the component part, and the intermediate layer is arranged on a side of the third light-transmitting layer away from the driving substrate.

10. The display panel according to claim 3, wherein: The refractive index of the first light-transmitting layer is greater than or equal to 1.7, the refractive index of the second light-transmitting layer is less than or equal to 1.5, and the refractive index of the third light-transmitting layer is less than or equal to 1.

5.

11. The display panel according to claim 1, wherein: The display panel further includes an encapsulation layer, wherein the encapsulation layer is disposed between the light-emitting layer and the anti-peeping structure layer; The encapsulation layer includes a first inorganic layer, an organic encapsulation layer, and a second inorganic layer stacked in sequence, or the encapsulation layer is an inorganic encapsulation layer.

12. A display panel, comprising: Driver substrate; a light-emitting layer, the light-emitting layer being disposed on the driving substrate, the light-emitting layer comprising a plurality of light-emitting pixels, and an anti-peeping structure layer, the anti-peeping structure layer being arranged on the light-emitting layer; the anti-peeping structure layer comprising a first light-transmitting layer and a second light-transmitting layer, the first light-transmitting layer being arranged on a side of the light-emitting layer away from the driving substrate, and the second light-transmitting layer being arranged on a side of the first light-transmitting layer away from the driving substrate; The first light-transmitting layer at least includes a component part, and the component part is arranged overlapping with the light-emitting pixel; The component portion includes a first portion, the first portion and the second light-transmitting layer form a first total reflection interface, and the first total reflection interface is configured to reflect part of the light to the backlight side of the display panel; The anti-peep structure layer further includes a third light-transmitting layer, the third light-transmitting layer is arranged on a side of the first light-transmitting layer close to the light-emitting layer, and the third light-transmitting layer is provided with an opening corresponding to the light-emitting pixel; The component part further includes a second part arranged on a side of the first part away from the drive substrate, the second part is arranged in the opening and forms a second total reflection interface with the side wall of the opening, and the second total reflection interface is arranged to reduce the emission angle of part of the light; The display panel further includes an encapsulation layer, which is disposed between the light-emitting layer and the anti-peeping structure layer; the encapsulation layer includes a first inorganic layer, an organic encapsulation layer, and a second inorganic layer which are sequentially stacked.

13. The display panel according to claim 12, wherein: The refractive index of the second light-transmitting layer is smaller than the refractive index of the member portion, and the refractive index of the third light-transmitting layer is smaller than the refractive index of the member portion.

14. The display panel according to claim 12, wherein: In a direction from the driving substrate to the anti-peeping structure layer, the width of the first part of the component portion decreases gradually, and the width of the second part of the component portion increases gradually.

15. The display panel according to claim 14, wherein: In the component part, the bottom surface of the second part is arranged opposite to the top surface of the first part, and the top surface of the first part is located on a side of the bottom surface of the second part away from the drive substrate; The side surface of the first part and the plane where the top surface of the first part is located have a first angle, the side surface of the second part and the plane where the bottom surface of the second part is located have a second angle, the first angle is greater than or equal to 50 degrees and less than or equal to 75 degrees, and the second angle is greater than or equal to 50 degrees and less than or equal to 75 degrees.

16. The display panel according to claim 15, wherein: The thickness of the third light-transmitting layer is between 1.5 and 2.5 micrometers, and the thickness of the component part is between 3 and 4 micrometers.

17. The display panel according to claim 15, wherein: The first angle is equal to the second angle.

18. The display panel according to claim 15, wherein: The side surface of the first portion is connected to the side surface of the second portion.

19. The display panel according to claim 13, wherein: The first light-transmitting layer further includes an intermediate layer, the intermediate layer is connected to the component part, and the intermediate layer is arranged on a side of the third light-transmitting layer away from the driving substrate.

20. The display panel according to claim 13, wherein: The refractive index of the first light-transmitting layer is greater than or equal to 1.7, the refractive index of the second light-transmitting layer is less than or equal to 1.5, and the refractive index of the third light-transmitting layer is less than or equal to 1.5.

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