Display panel and display device

Abstract

A display panel and a display device. The display panel comprises two first regions and a second region located between the two first regions. The display panel comprises: a substrate, a plurality of light-emitting units disposed on one side of the substrate, and a privacy structure layer disposed on the side of the plurality of light-emitting units away from the substrate. The plurality of light-emitting units comprise a first light-emitting unit disposed in the first region and a second light-emitting unit disposed in the second region; the privacy structure layer comprises a first light channel and a second light channel; the first light channel overlaps with the first light-emitting unit in a first direction, and the second light channel overlaps with the second light-emitting unit in the first direction; the first direction is a direction perpendicular to the substrate; the first light channel is configured to direct at least part of light emitted by the first light-emitting unit to exit toward the second region; and the second light channel is configured to direct at least part of light emitted by the second light-emitting unit to exit in a preset angle range.

Description

Display panel and display device Technical Field

[0001] This disclosure relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] Organic light-emitting diode (OLED) display panels have advantages such as self-illumination, low driving voltage, high luminous efficiency, thinness, wide viewing angle, fast response speed, and flexible display, and have gradually become one of the mainstream products in the display field.

[0003] Currently, display panels with privacy features are prone to becoming completely invisible at wide viewing angles. Therefore, ensuring that the display panel is completely invisible to users at wide viewing angles is a technical problem that urgently needs to be solved in the display panel industry. Summary of the Invention

[0004] On one hand, a display panel is provided. The display panel includes two first regions and a second region located between the two first regions; the display panel includes: a substrate, a plurality of light-emitting units and a privacy shield layer; the plurality of light-emitting units are disposed on one side of the substrate, the plurality of light-emitting units including a first light-emitting unit disposed in the first region and a second light-emitting unit disposed in the second region; the privacy shield layer is disposed on the side of the plurality of light-emitting units away from the substrate, the privacy shield layer includes a first light channel and a second light channel; the first light channel overlaps with the first light-emitting unit in a first direction, and the second light channel overlaps with the second light-emitting unit in the first direction; the first direction is a direction perpendicular to the substrate; wherein, the first light channel is configured to cause at least a portion of the light emitted by the first light-emitting unit to be emitted in a direction closer to the second region; the second light channel is configured to cause at least a portion of the light emitted by the second light-emitting unit to be emitted at a preset angle range.

[0005] In some embodiments, the privacy structure layer includes a first light-shielding layer, the first light-shielding layer including a first opening, the first opening at least partially overlapping the first light-emitting unit in the first direction, and the center of the first opening being closer to the second region than the center of the first light-emitting unit; the first opening is used to form at least a portion of the first light channel.

[0006] In some embodiments, the privacy shield layer further includes a second light-shielding layer disposed at a distance from the first light-shielding layer in the first direction, the second light-shielding layer being closer to the substrate than the first light-shielding layer; the second light-shielding layer having a second opening, the second opening overlapping the first light-emitting unit in the first direction, and the center of the first opening being closer to the second region than the center of the second opening; the first opening and the second opening are used to form the first light channel.

[0007] In some embodiments, the center of the second opening coincides with the center of the first light-emitting unit in the first direction.

[0008] In some embodiments, the dimension of the first opening along the second direction is greater than the dimension of the second opening along the second direction; the second direction is the arrangement direction of the two first regions and the second region.

[0009] In some embodiments, the first opening has a first boundary near the second region, and the second opening has a third boundary near the second region; the first boundary is closer to the second region than the third boundary.

[0010] In some embodiments, the first opening further has a second boundary disposed opposite to the first boundary in a second direction, and the second opening further has a fourth boundary disposed opposite to the third boundary in the second direction; the second direction is the arrangement direction of the two first regions and the second region; the distance between the second boundary and the fourth boundary in the first direction is less than the distance between the first boundary and the third boundary.

[0011] In some embodiments, in orthographic projection onto the substrate, the distance between the first boundary and the third boundary is 1 μm to 4 μm.

[0012] In some embodiments, the first light-shielding layer is further provided with a third opening, and the second light-shielding layer is provided with a fourth opening. The third opening and the fourth opening overlap with the second light-emitting unit in the first direction, and the center of the third opening, the center of the fourth opening and the center of the second light-emitting unit coincide in the first direction; the third opening and the fourth opening are used to form the second light channel.

[0013] In some embodiments, the display panel further includes a touch structure layer, the touch structure layer including at least one conductive layer; any one of the at least one conductive layer serves as the first light-shielding layer and has the first opening formed therein.

[0014] In some embodiments, the privacy shield layer further includes an optical lens layer disposed on the side of the first light-shielding layer away from the substrate; the optical lens layer includes a first lens, the first lens overlapping the first light-emitting unit in the first direction, and the center of the first lens being closer to the second region than the center of the first light-emitting unit; the first opening and the first lens are used to form the first light channel.

[0015] In some embodiments, the center of the first opening and the center of the first lens coincide in the first direction.

[0016] In some embodiments, the first opening has a first boundary near the second region, and the light-emitting area of ​​the first light-emitting unit has a fifth boundary near the second region; the first boundary is closer to the second region than the fifth boundary.

[0017] In some embodiments, in orthographic projection onto the substrate, the distance between the first boundary and the fifth boundary is 1 μm to 2 μm.

[0018] In some embodiments, the first opening has a first boundary away from the second region, the light-emitting area of ​​the first light-emitting unit has a sixth boundary away from the second region, and in orthographic projection onto the substrate, the distance between the first boundary and the fifth boundary is greater than the distance between the second boundary and the sixth boundary.

[0019] In some embodiments, the distance between the orthographic projection of the center of the first lens onto the substrate and the orthographic projection of the center of the first light-emitting unit onto the substrate is 1 μm to 2 μm.

[0020] In some embodiments, the first opening has a first boundary near the second region, and the first lens has a seventh boundary near the second region; the orthographic projection of the seventh boundary on the substrate is closer to the second region than the orthographic projection of the first boundary on the substrate.

[0021] In some embodiments, the first light-shielding layer is further provided with a fifth opening, and the optical lens layer further includes a second lens. The fifth opening and the second lens overlap with the second light-emitting unit in the first direction, and the center of the fifth opening, the center of the second lens and the center of the second light-emitting unit coincide in the first direction; the fifth opening and the second lens are used to form the second light channel.

[0022] In some embodiments, the dimension of the first lens along the second direction is greater than the dimension of the second lens along the second direction; the second direction is the arrangement direction of the two first regions and the second region.

[0023] In some embodiments, the privacy shield layer includes a first grating structure and a second grating structure, wherein the first grating structure is located in the first region and the second grating structure is located in the second region; the first grating structure is used to form the first light channel and the second grating structure is used to form the second light channel; the first grating structure includes a plurality of first light-shielding portions spaced apart along a second direction, and the second grating structure includes a plurality of second light-shielding portions spaced apart along the second direction; the second direction is the arrangement direction of the two first regions and the second region; both the first light-shielding portions and the second light-shielding portions extend along the first direction, and the dimension of the first light-shielding portion along the first direction is smaller than the dimension of the second light-shielding portion along the first direction.

[0024] In some embodiments, the first grating structure further includes at least one third light-shielding portion; the at least one third light-shielding portion is located on the side of the plurality of first light-shielding portions away from the second region; when the first grating structure includes a plurality of the third light-shielding portions, the plurality of third light-shielding portions are spaced apart along the second direction; the third light-shielding portions extend along the first direction, and the size of the third light-shielding portions along the first direction is greater than the size of the first light-shielding portions along the first direction.

[0025] In some embodiments, the dimension of the third light-shielding portion along the first direction is equal to the dimension of the second light-shielding portion along the first direction.

[0026] In some embodiments, the dividing line between the plurality of second light-shielding portions and the at least one third light-shielding portion passes through the center of the first light-emitting unit.

[0027] In some embodiments, the size of the first light-shielding portion along the first direction is 7.5 μm to 10 μm, and the size of the second light-shielding portion along the first direction is 15 μm to 20 μm.

[0028] In some embodiments, along the direction from the second region to the first region, the size of the plurality of first light-shielding portions gradually increases or decreases in a stepwise manner along the first direction.

[0029] In some embodiments, the privacy shield layer includes a first grating structure and a second grating structure, wherein the first grating structure is located in the first region and the second grating structure is located in the second region; the first grating structure is used to form the first light channel and the second grating structure is used to form the second light channel; the first grating structure includes a plurality of first light-shielding portions spaced apart along a second direction, and the second grating structure includes a plurality of second light-shielding portions spaced apart along the second direction; the second direction is the arrangement direction of the two first regions and the second region; the first light-shielding portions extend along a predetermined direction, and the second light-shielding portions extend along the first direction; the angle between the predetermined direction and the first direction is an acute angle, and the end of the first light-shielding portion away from the substrate is closer to the second light-shielding portion than the end of the first light-shielding portion closer to the substrate.

[0030] In some embodiments, the angle between the set direction and the first direction is in the range of 5° to 10°.

[0031] In some embodiments, along the direction from the second region to the first region, the angle between the plurality of first light-shielding portions and the second light-shielding portion gradually decreases or decreases stepwise.

[0032] In some embodiments, the display panel includes a plurality of pixel regions arranged in an array, each pixel region including a regular region and a privacy region, wherein the first light-emitting unit and the second light-emitting unit are disposed in the privacy region; the plurality of light-emitting units further includes a third light-emitting unit disposed in the regular region, and the privacy structure layer is transparently disposed above the third light-emitting unit; the display panel further includes a plurality of pixel circuits; each light-emitting unit includes an anode, a light-emitting layer and a cathode layer stacked thereon; the first light-emitting unit located in the same pixel region is connected to the light-emitting layer of the third light-emitting unit, the anodes are spaced apart from each other and connected to the same pixel circuit; the second light-emitting unit located in the same pixel region is connected to the light-emitting layer of the third light-emitting unit, the anodes are spaced apart from each other and connected to the same pixel circuit.

[0033] On the other hand, a display device is provided. The display device includes a display panel as described in any of the above embodiments. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0035] Figure 1 is a pixel arrangement structure diagram of a display panel according to some embodiments of the present disclosure;

[0036] Figure 2A is a structural diagram of a display panel according to some embodiments of related technologies;

[0037] Figure 2B is another structural diagram of a display panel according to some embodiments of the related art;

[0038] Figure 3A is a structural diagram of the light emission angle of a display device according to some embodiments of the present disclosure;

[0039] Figure 3B is a structural diagram of the light emission angle of another display device according to some embodiments of the present disclosure;

[0040] Figure 3C is a structural diagram of a display panel according to some embodiments of the present disclosure;

[0041] Figure 3D is another structural diagram of a display panel according to some embodiments of the present disclosure;

[0042] Figure 3E is a privacy angle structural diagram of a display device according to some embodiments of the present disclosure;

[0043] Figure 4 is another stacking structure diagram of a display panel according to some embodiments of the present disclosure;

[0044] Figure 5 is another stacking structure diagram of a display panel according to some embodiments of the present disclosure;

[0045] Figure 6 is another stacking structure diagram of a display panel according to some embodiments of the present disclosure;

[0046] Figure 7 is another stacking structure diagram of a display panel according to some embodiments of the present disclosure;

[0047] Figure 8 is another stacking structure diagram of a display panel according to some embodiments of the present disclosure;

[0048] Figure 9 is another stacking structure diagram of a display panel according to some embodiments of the present disclosure;

[0049] Figure 10A is an equivalent circuit diagram of the pixel circuit of a display panel according to some embodiments of the present disclosure;

[0050] Figure 10B is another equivalent circuit diagram of the pixel circuit of a display panel according to some embodiments of the present disclosure;

[0051] Figure 11 is a structural diagram of a display device according to some embodiments of the present disclosure;

[0052] Figure 12A is a stacked structure diagram of a display panel according to some embodiments of the present disclosure;

[0053] Figure 12B is another stacking structure diagram of a display panel according to some embodiments of the present disclosure;

[0054] Figure 12C is another stacked structure diagram of a display panel according to some embodiments of the present disclosure. Detailed Implementation

[0055] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0056] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0057] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0058] In describing some embodiments, the terms "coupled" and "connected," and their derivative expressions, may be used. The term "connected" should be interpreted broadly; for example, a "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection via an intermediate medium. The term "coupled," for example, indicates that two or more components have direct physical or electrical contact. The term "coupled" or "communicatively coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0059] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0060] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0061] As used herein, depending on the context, the term "if" is optionally interpreted as meaning "when," "at," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrases "if it is determined..." or "if [the stated condition or event] is optionally interpreted as meaning "in response to determination..." or "in response to detection of [the stated condition or event]."

[0062] The use of “applies to” or “configured to” in this article implies an open and inclusive language that does not preclude applicability to or configuration to devices that perform additional tasks or steps.

[0063] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0064] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0065] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0066] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on the other layer or substrate, or that there is an intermediate layer between the layer or element and the other layer or substrate.

[0067] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and the area of ​​regions are enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched areas shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the areas of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0068] The transistors used in the circuits provided in the embodiments of this application can be thin-film transistors, field-effect transistors (e.g., oxide thin-film transistors), or other switching devices with the same characteristics. The embodiments of this application all use thin-film transistors as examples for illustration. Preferably, the thin-film transistors used in the embodiments of this disclosure can be oxide semiconductor transistors or low-temperature polycrystalline silicon (LTPS) thin-film transistors.

[0069] Organic light-emitting diodes (OLEDs) emit light themselves, which allows OLED display panels to have a wider viewing angle and provide users with a better visual experience.

[0070] With the development of OLED display technology and the widespread use of mobile devices such as computers, tablets, and smartphones, more and more people like to share information with others in public places such as subways and high-speed trains, and use mobile devices for online transactions or work. When using mobile devices in public places, due to the wide viewing angle and high image quality of the display devices, others besides the user can clearly see the display screen, easily leading to the leakage of trade secrets and personal privacy, causing losses. On the other hand, privacy protection for in-vehicle screens is currently a mainstream display configuration in the automotive market. Setting up privacy protection not only prevents the screen display from reflecting onto the side windows when driving at night, but also prevents it from reflecting onto the windshield, avoiding affecting driving and improving nighttime driving safety and experience. To improve driving safety and experience, screens need to have privacy protection functions when driving at night. Therefore, the switching between privacy protection and display functions of OLED display devices is receiving increasing attention.

[0071] Early privacy technologies used external privacy screen protectors, which required users to manually attach them to the screen for privacy. The screen protector could be removed when not in use. More recent technologies involve adding a liquid crystal layer in front of the screen and using liquid crystal rotation to limit the light emission angle. However, this increases the thickness of the screen and also presents the problem that privacy mode and sharing mode cannot coexist.

[0072] In some embodiments, to achieve the switching between privacy mode and sharing mode, the display panel adopts an anodized structure, as shown in Figure 1. The display panel includes multiple sub-pixels SP arranged in an array. Each sub-pixel is divided into two parts: a first sub-pixel SP1 and a second sub-pixel SP2. That is, the first sub-pixel SP1 and the second sub-pixel SP2, located in two different regions, share a single pixel driving circuit. The switching between privacy mode and sharing mode is achieved by driving one region individually or both regions simultaneously through the pixel driving circuit. For example, the first sub-pixel SP1 and the second sub-pixel SP2, located in two different regions, can also be driven by two separate pixel driving circuits, without affecting each other. Exemplarily, in privacy mode, only the first sub-pixel SP1 emits light. The emission angle of the light is shown in Figure 2A. As can be seen from Figure 2A, the emission angle of the light is limited, i.e., the privacy mode is achieved by limiting the emission angle of the light. In sharing mode, both the first sub-pixel SP1 and the second sub-pixel SP2 emit light, or only the second sub-pixel SP2 emits light. In some embodiments, the pixel opening of the first sub-pixel SP1 is smaller than the pixel opening of the second sub-pixel SP2. In the sharing mode, the emission angle of the light increases, as shown in Figure 2B. Both regions corresponding to the first sub-pixel SP1 and the second sub-pixel SP2 can emit light to achieve the sharing mode.

[0073] In some embodiments, a scheme may be adopted in which some sub-pixels are used as privacy sub-pixels and some sub-pixels are used as shared sub-pixels. This application does not limit the specific implementation scheme of the privacy and sharing modes.

[0074] Referring to Figures 3A and 3B, where Figure 3A shows the light emission angle of a small-sized display device in privacy mode, and Figure 3B shows the light emission angle of a large-sized display device in privacy mode. Because privacy mode limits the viewing angle—meaning that when a user is in front of the screen viewing the displayed information, only light within a specific angle can enter the user's eye—the user cannot see the displayed information beyond that angle. This problem is not significant when the display screen is small, but as the display screen becomes larger, parts of the screen become invisible. Comparing Figures 3A and 3B, it can be seen that when a user views information displayed on a small-sized display device, all the light rays emitted along the display panel can enter the user's eyes. That is, the user can see all the display information at both the central viewing angle θ1 and the edge viewing angle θ2, meaning the display device is fully visible. However, for large-sized display devices, when a user views information displayed on a large-sized display device, only a specific angle of light rays emitted along the display panel can enter the user's eyes. That is, the user can see part of the display information, meaning the display device is not fully visible. In other words, in Figure 3B, the user can see the display information at the central viewing angle, but the light rays emitted at the edge viewing angles do not reach the user's eyes, so the user cannot see the display information at the edge viewing angles.

[0075] Based on this, some embodiments of the present disclosure provide a display panel and a display device to avoid the problem of full-screen invisibility in privacy mode of large-size display devices, thereby improving the display quality of large-size display devices.

[0076] It should be noted that the reference numerals A / B to C appearing in the accompanying drawings of this disclosure indicate that A and B can both refer to the structure indicated by the reference numeral, and that A / B both belong to C. Similar reference numerals appearing in the accompanying drawings also follow the above explanation.

[0077] As shown in Figure 4, some embodiments of this disclosure provide a display panel 100, which includes two first regions AA and a second region BB located between the two first regions AA. Referring to Figures 3C and 3D, the size of the display panel 100 shown in Figure 3C is smaller than that shown in Figure 3D. The second region BB can be the central region A1 of the display panel 100, and the first region AA can be the edge region A2 of the display panel 100. Both the central region A1 and the edge region A2 of the display panel 100 are used to display images. Specifically, the central region A1 is the aforementioned second region BB, and the edge region A2 is the aforementioned first region AA.

[0078] Referring to Figures 3C and 3D, the width of the central area A1 of the display panel 100 is, for example, 20cm to 30cm. Referring to Figure 3E, the privacy angle in Figure 3E is set to 12°. With this setting, the brightness attenuation is 80%, meaning the brightness change of the display panel 100 will not be significant. Typically, the user's viewing distance D is, for example, 50cm to 70cm. According to the formula: the width of the central area A1 equals 2*D*tanθ, the width of the central area A1 falls within the above range. For small-sized display devices, the user can see the entire screen as shown in Figure 3C when viewing the displayed information; however, for large-sized display devices, the phenomenon of the entire screen being invisible will occur as shown in Figure 3D.

[0079] Referring to Figure 4, the display panel 100 includes a substrate 1, a plurality of light-emitting units 2, and a privacy shield layer 3. The plurality of light-emitting units 2 are disposed on one side of the substrate 1, and the plurality of light-emitting units 2 include a first light-emitting unit 21 disposed in a first region AA and a second light-emitting unit 22 disposed in a second region BB. A privacy screen layer 3 is disposed on the side of the plurality of light-emitting units 2 away from the substrate 1. The privacy screen layer 3 includes a first light channel G1 and a second light channel G2. The first light channel G1 overlaps with the first light-emitting unit 21 in the first direction Y, that is, the orthogonal projection of the first light channel G1 on the substrate 1 overlaps with the orthogonal projection of the first light-emitting unit 21 on the substrate 1 at least partially. The second light channel G2 overlaps with the second light-emitting unit 22 in the first direction Y, that is, the orthogonal projection of the second light channel G2 on the substrate 1 overlaps with the orthogonal projection of the second light-emitting unit 22 on the substrate 1 at least partially. The first direction Y is a direction perpendicular to the substrate 1. The first light channel G1 is configured to cause at least a portion of the light emitted by the first light-emitting unit 21 to be emitted in a direction close to the second region BB. The second light channel G1 is configured to cause at least a portion of the light emitted by the second light-emitting unit 22 to be emitted within a preset angle range.

[0080] In some implementations, for example, both the first light-emitting unit and the second light-emitting unit are privacy pixels, that is, both are first sub-pixels.

[0081] It should be noted that the light emitted from the first light-emitting unit 21 is emitted through the first light channel G1, and the light emitted from the second light-emitting unit 22 is emitted through the second light channel G2. At least a portion of the light emitted from the first light-emitting unit 21 is emitted towards the second region BB. That is, a portion of the light emitted through the first light channel G1 will move closer to the second region BB. It can be understood that, with a straight line passing through the center of the first light-emitting unit 21 and extending along the first direction Y as the center line, the light emitted from the first light channel G1 is not symmetrically distributed on both sides of the center line. At least a portion of the light emitted from the first light channel G1 is deflected towards the second region BB relative to the position of the center line. At least a portion of the light emitted from the second light-emitting unit 22 through the second light channel G1 is emitted within a preset angle range. For example, the bisector of the preset angle is a straight line passing through the center of the first light-emitting unit 21 and extending along the first direction Y. That is, the light emitted through the second light channel G1 can be symmetrically distributed about the aforementioned bisector.

[0082] The aforementioned arrangement of the first light channel G1 and the second light channel G2 ensures that the light emitted along the first light-emitting unit 21 and the second light-emitting unit 22 can reach the human eye. In other words, the human eye can observe the display information on the first area AA and the second area BB of the display panel 100. For example, the distance between the human eye and the display panel is 50cm to 70cm. It should also be noted that the simultaneous emission of light from the first light-emitting unit 21 and the second light-emitting unit 22 is for the privacy mode of the display panel 100. This structural arrangement enables privacy protection for the light emitted by the first light-emitting unit 21 and the second light-emitting unit 22 from angles other than the user's observation. It also solves the problem in related technologies where the user can only observe the second area BB and cannot observe the display information on the two first areas AA of the display panel 100, thus achieving full-screen visualization in privacy mode.

[0083] For example, the substrate 1 is made of a transparent material. For instance, the substrate 1 can be a transparent flexible substrate, or it can be a transparent rigid substrate, such as glass or ultrathin glass.

[0084] In some embodiments, referring to Figures 4 and 5, the privacy structure layer 3 includes a first light-shielding layer 31, the first light-shielding layer 31 includes a first opening K1, the first opening K1 at least partially overlaps with the first light-emitting unit 21 in the first direction Y, and the center of the first opening K1 is closer to the second region BB than the center of the first light-emitting unit 21; the first opening K1 is used to form at least a portion of the first light channel G1.

[0085] For example, referring to Figures 4 and 5, in the first light-shielding layer 31, the openings in the first area AA are all first openings K1, and the first opening K1 at least partially overlaps with the orthographic projection of the first light-emitting unit 21 in the first direction Y. That is, the orthographic projection of the first opening K1 on the substrate 1 at least partially overlaps with the orthographic projection of the first light-emitting unit 21 on the substrate 1. The center of the first opening K1 is set closer to the second area BB than the center of the first light-emitting unit 21. In other words, at least part of the light emitted by the first light-emitting unit 21 along the first opening K1 is emitted towards the direction closer to the second area BB. This setting enables the user to receive the light from the first light-emitting unit 21, which can expand the visible range of the human eye. Furthermore, when the human eye looks at the display panel, it can simultaneously see the display information of the display panel in the first area AA and the second area BB. At the same time, when the first light-emitting unit 21 emits light along the first light channel G1, the side of the first area AA away from the second area BB will be blocked by the first light-shielding layer 31 and will not emit light. Therefore, it will not shine into the eyes of people other than the user, thereby achieving the effect of preventing peeping.

[0086] It should be noted that the above-mentioned center refers to the geometric center. For example, if the shape of the first opening K1 is a circle, then the geometric center of the circle is the center position of the first opening K1.

[0087] In some embodiments, referring to FIG4, the privacy structure layer 3 further includes a second light-shielding layer 32 disposed at a distance from the first light-shielding layer 31 in the first direction Y. The second light-shielding layer 32 is closer to the substrate 1 than the first light-shielding layer 31. The second light-shielding layer 32 is provided with a second opening K2, which overlaps with the first light-emitting unit 21 in the first direction Y, and the center of the first opening K1 is closer to the second region BB than the center of the second opening K2. The first opening K1 and the second opening K2 are used to form a first light channel G1.

[0088] For example, the distance between the edge of the second opening K2 near the second region BB and the edge of the first light-emitting unit 21 near the second region BB is the same as the distance between the edge of the second opening K2 near the second region BB and the edge of the first light-emitting unit 21 near the second region BB, and this distance can be 0μm to 1μm.

[0089] For example, referring to FIG4, in the second light-shielding layer 32, the openings located in the first area AA are all second openings K2, and the second openings K2 overlap with the first light-emitting unit 21 in the first direction Y. That is, the orthographic projection of the second opening K2 on the substrate 1 overlaps with the orthographic projection of the first light-emitting unit 21 on the substrate 1 in the first direction Y. It can be understood that the first opening K1 and the second opening K2 are both correspondingly set with the first light-emitting unit 21, that is, the light emitted by the first light-emitting unit 21 can be emitted through the first light channel G1 defined by the second opening K2 and the first opening K1 in sequence. The center of the first opening K1 is set closer to the second area BB than the center of the second opening K2. This setting allows a portion of the light emitted by the first light-emitting unit 21 to gradually move closer to the second area BB after being emitted through the first light channel G1. This allows the user to receive the light from the first light-emitting unit 21, which expands the visible range of the human eye. Furthermore, when the human eye looks at the display panel, it can simultaneously see the display information of the display panel in the first area AA and the second area BB, realizing full-screen visualization in the privacy mode.

[0090] It should be noted that, in the case where the center of the first opening K1 is closer to the second region BB than the center of the second opening K2, in some embodiments, the centers of both the first opening K1 and the second opening K2 are closer to the second region BB relative to the center of the first light-emitting unit 21. That is, the first opening K1 and the second opening K2 are offset relative to the first light-emitting unit 21 towards the second region BB to ensure the amount of light emitted and expand the visible range of the human eye.

[0091] In some embodiments, referring to FIG4, the center of the second opening K2 coincides with the center of the first light-emitting unit 21 in the first direction Y.

[0092] For example, since the second opening K2 is closer to the first light-emitting unit 21 than the first opening K1, setting the center of the second opening K2 to coincide with the center of the first light-emitting unit 21 in the first direction Y enables the light emitted by the first light-emitting unit 21 to be emitted directly along the second opening K2, thereby improving the utilization rate of light.

[0093] It should be noted that the above-mentioned "overlap" can be complete overlap or incomplete overlap. In the case where the orthographic projection of the center of the second opening K2 onto the substrate 1 and the orthographic projection of the center of the first light-emitting unit 21 onto the substrate 1 are not completely overlapped, that is, the center of the second opening K2 and the center of the first light-emitting unit 21 have a certain range of deviation in the first direction Y.

[0094] In some embodiments, referring to FIG4, the dimension D1 of the first opening K1 along the second direction X is greater than the dimension D2 of the second opening K2 along the second direction X; the second direction X is the arrangement direction of the two first regions AA and the second region BB.

[0095] For example, the second direction X is perpendicular to the first direction Y. The size D1 of the first opening K1 along the second direction X is set to be greater than the size D2 of the second opening K2 along the second direction X. This can ensure that the amount of light emitted by the first light-emitting unit 21 is increased along the first light channel G1, thereby improving the display brightness.

[0096] In some embodiments, referring to FIG4, the first opening K1 has a first boundary B1 close to the second region, and the second opening K2 has a third boundary B3 close to the second region BB; the first boundary B1 is closer to the second region BB than the third boundary B3.

[0097] For example, continuing to refer to Figure 4, the first boundary B1 is set to be closer to the second area BB than the third boundary B3. That is, the first light channel G1 defined by the first opening K1 and the second opening K2 can be tilted towards the second area BB. This is beneficial for some of the light emitted by the first light-emitting unit 21 to be emitted along the first light channel G1 to the location of the human eye, thereby ensuring that the human eye can observe the display information of the display panel 100 in the first area AA and the second area BB, and realize full-screen visualization in the privacy mode.

[0098] In some embodiments, continuing to refer to FIG4, the first opening K1 further has a second boundary B2 disposed opposite to the first boundary B1 in the second direction X, and the second opening K2 further has a fourth boundary B4 disposed opposite to the third boundary B3 in the second direction X; the second direction X is the arrangement direction of the two first regions AA and the second region BB; the distance between the second boundary B2 and the fourth boundary B4 in the first direction Y is less than the distance between the first boundary B1 and the third boundary B3.

[0099] For example, continuing to refer to Figure 4, since the human eye's observation position is located in the second zone BB, for example, in the center of the second zone BB, in order to increase the user's field of view, it is necessary to expand the area near both sides of the second zone BB so that the emitted light can enter the human eye. That is to say, at least part of the light emitted by the first light-emitting unit 21 can be directed towards the human eye to achieve full-screen visualization in the privacy mode. The above-mentioned setting of the first boundary B1 being closer to the second zone BB than the third boundary B3 ensures that the human eye can receive at least part of the light emitted by the first light-emitting unit 21. On this basis, the distance between the second boundary B2 and the fourth boundary B4 in the first direction Y is set to be less than the distance between the first boundary B1 and the third boundary B3. This setting can prevent the light from being too diffused and causing the light to be directed into the field of view of people other than the user, thus affecting the privacy effect.

[0100] It should be noted that the above overlap may be incomplete. For example, the distance between the second boundary B2 and the fourth boundary B4 in the first direction Y is within a certain range, which is 0 μm to 1 μm.

[0101] In some embodiments, continuing to refer to FIG4, in the orthographic projection onto the substrate 1, the distance H1 between the first boundary B1 and the third boundary B3 is 1 μm to 4 μm.

[0102] For example, the distance H1 between the first boundary B1 and the third boundary B3 can be 1μm, 2μm, 3μm, or 4μm. Therefore, the first light-shielding layer 31 is not symmetrically arranged on both sides of the first light-emitting unit 21. This range increases the light emission angle, allowing more light emitted from the first light-emitting unit 21 to reach the viewer's eye. Simultaneously, the distance setting ensures that the brightness of the light emitted by the first light-emitting unit 21 decreases more slowly near the second region BB, improving light utilization, increasing brightness, and thus improving display quality.

[0103] In some embodiments, continuing to refer to FIG4, the first light-shielding layer 31 is further provided with a third opening K3, and the second light-shielding layer 32 is provided with a fourth opening K4. The third opening K3 and the fourth opening K4 overlap with the second light-emitting unit 22 in the first direction Y, and the center of the third opening K3, the center of the fourth opening K4 and the center of the second light-emitting unit 22 coincide in the first direction Y; the third opening K3 and the fourth opening K4 are used to form the second light channel G2.

[0104] For example, the fourth opening K4 has a ninth boundary B9 and a tenth boundary B10 disposed opposite to each other in the second direction X; the second light-emitting unit 22 has an eleventh boundary B11 and a twelfth boundary B12 disposed opposite to each other in the second direction X; and the third opening K3 has a thirteenth boundary B13 and a fourteenth boundary B14 disposed opposite to each other in the second direction X. The ninth boundary B9, the eleventh boundary B11, and the thirteenth boundary B13 are located on the same side, and the tenth boundary B10, the twelfth boundary B12, and the fourteenth boundary B14 are located on the same side. The distances between the thirteenth boundary B13 and the ninth boundary B9 and the eleventh boundary B11, as well as the distances between the tenth boundary B10, the fourteenth boundary B14, and the twelfth boundary B12, are the same and can be 0 μm to 1 μm. Therefore, the first light-shielding layer 31 is symmetrical on both sides of the second light-emitting unit 22, and the thirteenth boundary B13 and the ninth boundary B9 are closer to the first region AA than the eleventh boundary B11, while the tenth boundary B10 and the fourteenth boundary B14 are relatively closer to the first region AA.

[0105] Alternatively, the distance between the thirteenth boundary B13 and the eleventh boundary B11, and the distance between the fourteenth boundary B14 and the twelfth boundary B12 are the same, which can be 0μm to 1μm; based on this, the distance between the ninth boundary B9 and the thirteenth boundary B13, and the distance between the tenth boundary B10 and the fourteenth boundary B14 are the same, which can be 0μm to 1μm, and the ninth boundary B9 is closer to the first region AA relative to the thirteenth boundary B13, and the tenth boundary B10 is closer to the first region AA relative to the fourteenth boundary B14.

[0106] For example, the third opening K3 and the fourth opening K4 are both located in the second area BB and overlap with the second light-emitting unit 22 in the first direction Y. The light emitted by the second light-emitting unit 22 can be emitted through the second light channel G2 defined by the fourth opening K4 and the third opening K3 in sequence. The center of the third opening K3, the center of the fourth opening K4 and the center of the second light-emitting unit 22 are set to coincide in the first direction Y. That is, the center of the second light channel G2 also coincides with the center of the second light-emitting unit 22 in the first direction Y. This can increase the amount of light emitted by the second light-emitting unit 22 emitted along the second light channel G2 and make the brightness higher than the brightness of other positions except the second light channel G2, thereby improving the display effect of the display panel 100. At the same time, when the second light-emitting unit 22 emits light along the second light channel G2, it will be blocked by the first light-shielding layer 31, and some light will not be emitted. Therefore, the light will not be directed into the eyes of people other than the user, thereby achieving the effect of preventing peeping.

[0107] In some embodiments, referring to FIG5, the privacy structure layer 3 includes an optical lens layer 33 disposed on the side of the first light-shielding layer 31 away from the substrate 1; the optical lens layer 33 includes a first lens 331, the first lens 331 overlaps with the first light-emitting unit 21 in the first direction Y, and the center of the first lens 331 is closer to the second region BB than the center of the first light-emitting unit 21; the first opening K1 and the first lens 331 are used to form a first light channel G1.

[0108] For example, referring to FIG5, in the optical lens layer 33, the lenses located in the first area AA are all first lenses 331, and the first lens 331 overlaps with the first light-emitting unit 21 in the first direction Y. It can be understood that the first opening K1 and the first lens 331 are respectively set to correspond to the first light-emitting unit 21, that is, the light emitted by the first light-emitting unit 21 can be emitted through the first light channel G1 defined by the first opening K1 and the first lens 331 in sequence. The center of the first lens 331 is set closer to the second area BB than the center of the first light-emitting unit 21. This setting can make a part of the light emitted by the first light-emitting unit 21 gradually move closer to the second area BB after being emitted through the first light channel G1, and can make the user receive the light from the first light-emitting unit 21, that is, can expand the field of vision of the human eye. Furthermore, when the human eye looks at the display panel 100, it can simultaneously see the display information of the display panel 100 in the first area AA and the second area BB, realizing full-screen visualization in the privacy mode.

[0109] It should be noted that, since the first lens 331 has the function of focusing light, after the first light-emitting unit 21 emits light along the first opening K1, the light rays that are incident on the first lens 331 can be focused, thereby improving the light utilization rate, increasing the light brightness, and thus improving the display quality.

[0110] In some embodiments, referring to Figures 4 and 5, when the privacy shielding structure layer 3 includes a first light-shielding layer 31 and a second light-shielding layer 32, the first lens 331 may be disposed on the side of the first light-shielding layer 31 away from the substrate 1.

[0111] For example, the center of the first lens 331 is closer to the second region BB than the center of the first light-emitting unit 21, or the orthogonal projection of the center of the first lens 331 onto the substrate 1 covers the orthogonal projection of the center of the first light-emitting unit 21 onto the substrate 1.

[0112] In some other embodiments, referring to FIG5, the privacy structure layer 3 shown in FIG5 includes a first light-shielding layer 31 and does not have a second light-shielding layer 32. Meanwhile, a first lens 331 is provided on the side of the first light-shielding layer 31 away from the substrate 1, which can also increase the amount of light emitted, so as to realize full-screen visualization in privacy mode.

[0113] In some embodiments, referring to FIG5, the center of the first opening K1 and the center of the first lens 331 coincide in the first direction Y.

[0114] For example, the arrangement of the first opening K1 and the center position of the first lens 331 enables the light emitted by the first light-emitting unit 21 to be emitted along the first opening K1 and the first lens 331, thereby improving the utilization rate of light and enhancing the display brightness of the display panel.

[0115] In some embodiments, referring to Figures 5 and 4, the first opening K1 has a first boundary B1 close to the second region BB, and the light-emitting area of ​​the first light-emitting unit 21 has a fifth boundary B5 close to the second region BB; the first boundary B1 is closer to the second region BB than the fifth boundary B5.

[0116] It should be noted that the two opposite boundaries of the first light-emitting unit 21 in the second direction X are the fifth boundary B5 and the sixth boundary B6, respectively.

[0117] For example, the first boundary B1 is set closer to the second area BB than the fifth boundary B5, that is, the first light channel G1 formed by the first opening K1 and the first lens 331 can be tilted toward the second area BB. This is beneficial for some of the light emitted by the first light-emitting unit 21 to be emitted along the first light channel G1 to the location of the human eye, thereby ensuring that the human eye can observe the display information of the display panel 100 in the first area AA and the second area BB, and realize full-screen visualization in the privacy mode.

[0118] It should be noted that, continuing to refer to Figure 5, the display panel 100 includes a pixel delimiting layer (PDL), which includes multiple pixel openings, and the light-emitting area of ​​the first light-emitting unit 21 is defined by the pixel openings of the pixel delimiting layer (PDL).

[0119] In some embodiments, continuing to refer to FIG5, in the orthographic projection onto the substrate 1, the distance H2 between the first boundary B1 and the fifth boundary B5 is 1 μm to 2 μm.

[0120] For example, the distance H2 between the first boundary B1 and the fifth boundary B5 can be 1μm, 1.5μm, or 2μm. This range increases the light emission angle, allowing more light emitted by the first light-emitting unit 21 to reach the viewer's eye. Simultaneously, the distance setting ensures that the brightness of the light emitted by the first light-emitting unit 21 decreases more slowly near the second region BB, improving light utilization, increasing brightness, and ultimately enhancing display quality.

[0121] In some embodiments, referring to Figures 5 and 4, the first opening K1 has a first boundary B1 that is far from the second region BB, and the light-emitting area of ​​the first light-emitting unit 21 has a sixth boundary B6 that is far from the second region BB. In the orthographic projection onto the substrate 1, the distance between the first boundary B1 and the fifth boundary B5 is greater than the distance between the second boundary B2 and the sixth boundary B6.

[0122] For example, the distance between the second boundary B2 and the sixth boundary B6 can be 0μm to 1μm. This setting can prevent the light from being too diffused and shining into the field of vision of people other than the user, thus affecting the privacy protection effect.

[0123] In some embodiments, referring to FIG5, the distance H3 between the orthographic projection of the center of the first lens 331 onto the substrate and the orthographic projection of the center of the first light-emitting unit 21 onto the substrate is 1 μm to 2 μm.

[0124] For example, the distance H3 between the orthographic projection of the center of the first lens 331 onto the substrate 1 and the orthographic projection of the center of the first light-emitting unit 21 onto the substrate 1 can be 1 μm, 1.5 μm, or 2 μm. Given that the first boundary B1 is closer to the second region BB than the fifth boundary B5, this arrangement can further increase the light emission angle. The first lens 331 can concentrate a large amount of light emitted from the first light-emitting unit 21 along the first opening K1, allowing more light emitted by the first light-emitting unit 21 to reach the human eye. Furthermore, since both the center of the first lens 331 and the first boundary B1 are closer to the second region BB, the brightness attenuation of the light emitted by the first light-emitting unit 21 is also slower.

[0125] In some embodiments, referring to FIG5, the first opening K1 has a first boundary B1 close to the second region BB, and the first lens 331 has a seventh boundary B7 close to the second region BB; the seventh boundary B7 is closer to the second region BB than the first boundary B1.

[0126] For example, continuing to refer to Figure 5, the seventh boundary B7 is closer to the second region BB than the first boundary B1. That is to say, the first lens 331 can receive and converge the light emitted by the first light-emitting unit 21 along the first opening K1 to increase the brightness and amount of light emitted, so that more of the light emitted by the first light-emitting unit 21 can be directed to the human eye, thereby improving the display effect of the display panel.

[0127] For example, the first opening K1 has a second boundary B2 that is far from the second region BB, and the first lens 331 has an eighth boundary B8 that is far from the second region BB, with the eighth boundary B8 being farther from the second boundary B2 than the second boundary B2. Therefore, the orthographic projection of the first lens 331 onto the substrate 1 covers the orthographic projection of the first opening K1 onto the substrate 1, and also covers the orthographic projection of the first light-emitting unit 21 onto the substrate 1. With this configuration, the first lens 331 can converge more light, thereby increasing the amount of light emitted, and allowing more light emitted by the first light-emitting unit 21 to reach the human eye.

[0128] In some embodiments, referring to FIG5, the first light-shielding layer 31 is further provided with a fifth opening K5, and the optical lens layer 33 further includes a second lens 332. The fifth opening K5 and the second lens 332 overlap with the second light-emitting unit 22 in the first direction Y, and the center of the fifth opening K5, the center of the second lens 332 and the center of the second light-emitting unit 22 coincide in the first direction Y; the fifth opening K5 and the second lens 332 are used to form a second light channel G2.

[0129] For example, continuing to refer to FIG5, the fifth opening K5 and the second lens 332 are both located in the second region BB and overlap with the second light-emitting unit 22 in the first direction Y. The light emitted by the second light-emitting unit 22 can be emitted through the second light channel G2 defined by the fifth opening K5 and the second lens 332 in sequence. The center of the fifth opening K5, the center of the second lens 332 and the center of the second light-emitting unit 22 are set to coincide in the first direction Y. That is to say, the center of the second light channel G2 also coincides with the center of the second light-emitting unit 22 in the first direction Y. This can increase the amount of light emitted by the second light-emitting unit 22 emitted along the second light channel G2 and make the brightness higher than the brightness of other positions except the second light channel G2, thereby improving the display effect of the display panel 100.

[0130] For example, the fifth opening K5 has a fifteenth boundary B15 and a sixteenth boundary B16 that are disposed opposite to each other in the second direction X, the second light-emitting unit 22 has an eleventh boundary B11 and a twelfth boundary B12 that are disposed opposite to each other in the second direction X, and the second lens 332 has a seventeenth boundary B17 and an eighteenth boundary B18 that are disposed opposite to each other in the second direction X. The fifteenth boundary B15, the eleventh boundary B11 and the seventeenth boundary B17 are located on the same side, and the sixteenth boundary B16, the twelfth boundary B12 and the eighteenth boundary B18 are located on the same side. Among them, the distance between the fifteenth boundary B15 and the eleventh boundary B11, and the distance between the sixteenth boundary B16 and the twelfth boundary B12 are the same, which can be 0μm to 1μm; on this basis, the distance between the seventeenth boundary B17 and the fifteenth boundary B15, and the distance between the eighteenth boundary B18 and the sixteenth boundary B16 are the same, which can be 0μm to 1μm, and the fifteenth boundary B15 is closer to the first region AA than the seventeenth boundary B17, and the sixteenth boundary B16 is closer to the first region AA than the eighteenth boundary B18.

[0131] In some embodiments, referring to FIG5, the dimension L1 of the first lens 331 along the second direction X is greater than the dimension L2 of the second lens 332 along the second direction X; the second direction X is the arrangement direction of the two first regions AA and the second region BB.

[0132] For example, the first lens 331 has a dimension L1 of 10 μm along the second direction X, and the second lens 332 has a dimension L2 of 14 μm along the second direction X. This arrangement is made so that, on the one hand, since the dimension of the first opening K1 along the second direction X is larger than the dimension of the third opening K3 along the second direction X, the orthographic projections of the first lens 331 and the second lens 332 on the substrate 1 can respectively cover the orthographic projections of the first opening K1 and the third opening K3 on the substrate 1. Therefore, the above-mentioned dimension relationship is set. Furthermore, the first lens 331 receives and converges the light emitted by the first light-emitting unit 21 along the first opening K1 to increase the brightness and amount of light emitted, so that more of the light emitted by the first light-emitting unit 21 can be directed to the human eye. On the other hand, the second lens 332 receives and converges the light emitted by the second light-emitting unit 22 along the third opening K3 to increase the brightness and amount of light emitted, thereby improving the display effect of the display panel 100 in the first area AA and the second area BB.

[0133] In some embodiments, as shown in FIG6, the privacy screen layer 3 includes a first grating structure 34 and a second grating structure 35. The first grating structure 34 is located in a first region AA, and the second grating structure 35 is located in a second region BB. The first grating structure 34 is used to form a first light channel G1, and the second grating structure 35 is used to form a second light channel G2. The first grating structure 34 includes a plurality of first light-shielding portions 341 arranged at intervals along a second direction X, and the second grating structure 35 includes a plurality of second light-shielding portions 351 arranged at intervals along a second direction X. The second direction X is the arrangement direction of the two first regions AA and the second region BB. The first light-shielding portions 341 and the second light-shielding portions 351 both extend along a first direction Y, and the dimension L3 of the first light-shielding portion 341 along the first direction Y is smaller than the dimension L4 of the second light-shielding portion 351 along the first direction Y.

[0134] For example, referring to FIG6, the orthographic projection of the first light-shielding portion 341 on the substrate 1 away from the second region BB overlaps with the orthographic projection of the first light-emitting unit 21 on the substrate 1, and the orthographic projection of the first light-shielding portion 341 on the substrate 1 near the second region BB overlaps with the orthographic projection of the portion of the first region AA excluding the first light-emitting unit 21 on the substrate 1.

[0135] The orthographic projection of the second light-shielding part 351 onto the substrate 1 overlaps with the orthographic projection of the second light-emitting unit 22 onto the substrate 1, and also overlaps with the orthographic projections of the portion of the second region BB excluding the second light-emitting unit 22 onto the substrate 1.

[0136] For example, referring to FIG6, since the multiple first light-shielding parts 341 and the multiple second light-shielding parts 351 are arranged at intervals, that is, the interval between two adjacent first light-shielding parts 341 or two adjacent second light-shielding parts 351 can emit some light, and the dimension L3 of the first light-shielding part 341 along the first direction Y is smaller than the dimension L4 of the second light-shielding part 351 along the first direction Y, that is, the angle of the light emitted by the first light-emitting unit 21 along the first light-shielding part 341 is larger than the angle of the light emitted by the second light-emitting unit 22 along the second light-shielding part 351. The multiple first light-shielding parts 341 form a first light channel G1, and the multiple second light-shielding parts 351 form a second light channel G2. The arrangement of the first light channel G1 and the second light channel G2 enables the light emitted along the first light-emitting unit 21 and the second light-emitting unit 22 to reach the human eye, so as to ensure that the user can see the information of the first area AA and the second area BB of the display panel 100 even in the privacy mode of the large-size display device, that is, full-screen visualization.

[0137] It should be noted that when the privacy protection structure layer 3 includes the first grating structure 34 and the second grating structure 35, the first lens in Figure 6 can be omitted, and full-screen visualization in privacy protection mode can still be achieved.

[0138] In some embodiments, as shown in FIG6, the first grating structure 34 further includes at least one third light-shielding portion 342; the at least one third light-shielding portion 342 is located on the side of the plurality of first light-shielding portions 341 away from the second region BB; when the first grating structure 34 includes a plurality of third light-shielding portions 342, the plurality of third light-shielding portions 342 are arranged at intervals along the second direction X; the third light-shielding portions 342 extend along the first direction Y, and the dimension L5 of the third light-shielding portion 342 along the first direction Y is greater than the dimension L3 of the first light-shielding portion along the first direction X.

[0139] For example, the third light-shielding part 342 is set to have a dimension L5 along the first direction X that is larger than the dimension L3 along the first direction X of the first light-shielding part 341, and the third light-shielding part 342 is located on the side of the plurality of first light-shielding parts 341 away from the second area BB. This allows most of the light emitted by the first light-emitting unit 21 to be emitted through the gap between the first light-shielding parts 341, ensuring that the light emitted by the first light-emitting unit 21 can pass through the user's eyes along the first light channel G1, so that the user can observe the display content of the display panel 100 in the first area AA. At the same time, the third light-shielding part 342 at the edge of the first area AA is higher than the first light-shielding part 341, which can ensure the privacy effect of the first area AA at the edge position.

[0140] In some embodiments, as shown in FIG6, the dimension L5 of the third light-shielding portion 342 along the first direction Y is equal to the dimension L4 of the second light-shielding portion 351 along the first direction.

[0141] For example, the above-mentioned size setting can simplify the process, that is, the third light-shielding part 342 and the second light-shielding part 351 can be formed simultaneously. On the other hand, it can ensure that the light emitted along the gap between two adjacent third light-shielding parts 342 or two adjacent second light-shielding parts 351 is more uniform, so as to make the display screen more uniform.

[0142] In some embodiments, as shown in FIG6, the dividing line O of the plurality of first light-shielding portions 341 and at least one third light-shielding portion 342 passes through the center of the first light-emitting unit 21.

[0143] For example, the above-mentioned dividing line O is mainly set so that most of the light emitted by the first light-emitting unit 21 is emitted along the first light channel G1, so as to ensure that the light emitted by the first light-emitting unit 21 can be emitted along the first light channel G1 to the brightness of the user's eyes, thereby improving the display quality of the display panel 100 in the first area AA.

[0144] In some embodiments, referring to FIG6, the dimension L3 of the first light-shielding portion 341 along the first direction Y is 7.5μm to 10μm, and the dimension L4 of the second light-shielding portion 351 along the first direction X is 15μm to 20μm.

[0145] For example, continuing to refer to Figure 6, the dimension L3 of the first light-shielding part 341 along the first direction X can be 7.5μm, 8μm, 9μm or 10μm, etc., the dimension L4 of the second light-shielding part 351 along the first direction X can be 15μm, 16μm, 17μm, 18μm, 19μm or 20μm, etc., and the dimension L5 and L4 of the third light-shielding part 342 along the first direction Y can be 15μm, 16μm, 17μm, 18μm, 19μm or 20μm. This is just an example. Specifically, it is only necessary to meet the above dimension settings.

[0146] It should be noted that the dimension L4 of the second light-shielding part 351 along the first direction X is set based on the thickness of the film layer in which it is located, and the dimension L3 of the first light-shielding part 341 along the first direction X is set based on the light emission effect of the first light-emitting unit 21.

[0147] In some embodiments, continuing to refer to FIG6, along the direction from the second region BB to the first region AA, the size L3 of the plurality of first light-shielding portions 341 gradually increases or increases stepwise along the first direction X.

[0148] For example, continuing to refer to FIG6, the above-mentioned size setting enables the light emitted by the first light-emitting unit 21 to attenuate more and more slowly along the direction from the first region AA to the second region BB. In other words, the brightness of the light is brighter near the second region BB than far from the second region BB. This setting helps to increase the brightness of the light emitted by the first light-emitting unit 21 as it exits the first light channel G1 and reaches the user's eyes, thereby improving the display quality of the display panel 100 in the first region AA.

[0149] It should be noted that the dimensions L3 of the multiple first light-shielding parts 341 gradually increase along the first direction X. That is to say, the dimensions L3 of two adjacent first light-shielding parts 341 in the direction from the second region BB to the first region AA along the first direction X are increasing. The dimensions L3 of the multiple first light-shielding parts 341 in the first direction X increase in a stepwise manner. Specifically, the dimensions L3 in the direction from the second region BB to the first region AA along the first direction X can be the same, but they generally show an increasing trend.

[0150] In some embodiments, referring to FIG7, the privacy shield layer 3 includes a first grating structure 34 and a second grating structure 35. The first grating structure 34 is located in a first region AA, and the second grating structure 35 is located in a second region BB. The first grating structure 34 is used to form a first light channel G1, and the second grating structure 35 is used to form a second light channel G2. The first grating structure 34 includes a plurality of first light-shielding portions 341 arranged at intervals along a second direction X, and the second grating structure 35 includes a plurality of second light-shielding portions 351 arranged at intervals along the second direction X. The second direction X is the arrangement direction of the two first regions AA and the second region BB. The first light-shielding portions 341 extend along a set direction Z, and the second light-shielding portions 351 extend along a first direction Y. The angle between the set direction Z and the first direction Y is an acute angle, and the end of the first light-shielding portion 341 away from the substrate 1 is closer to the second light-shielding portion 351 than the end of the first light-shielding portion 341 closer to the substrate 1.

[0151] For example, as shown in FIG7, since the multiple first light-shielding portions 341 and the multiple second light-shielding portions 351 are arranged at intervals, the first light-emitting unit 21 can emit a portion of light along the set direction Z at the interval position between two adjacent first light-shielding portions 341. At the same time, the end of the first light-shielding portion 341 away from the substrate 1 is closer to the second light-shielding portion 351 than the end of the first light-shielding portion 341 closer to the substrate 1. The multiple first light-shielding portions 341 form a first light channel G1, and the multiple second light-shielding portions 351 form a second light channel G2. Most of the light emitted by the first light-emitting unit 21 along the first light channel G1 is closer to the second region BB, that is, the light emitted by the first light-emitting unit 21 is... Most of the light rays can be directed towards the human eye. As can be seen from the above, the second light channel G2 is the gap between multiple second light-shielding parts 351. Since multiple second light-shielding parts 351 extend along the first direction Y, the direction of the light emitted by the second light-emitting unit 22 along the gap between multiple second light-shielding parts 351 is the first direction Y. In summary, the arrangement of the first light channel G1 and the second light channel G2 enables the light emitted along the first light-emitting unit 21 and the second light-emitting unit 22 to be directed towards the human eye, so as to ensure that the user can see the information of the first area AA and the second area BB of the display panel 100 in the privacy mode of the large-size display device, that is, full-screen visualization.

[0152] For example, referring to FIG7, the orthographic projection of the first grating structure 34 on the substrate 1 overlaps with the orthographic projection of the first light-emitting unit 21 and the portion of the first region AA excluding the first light-emitting unit 21 on the substrate 1; the orthographic projection of the second grating structure 35 on the substrate 1 overlaps with the orthographic projection of the second light-emitting unit 22 and the portion of the second region BB excluding the second light-emitting unit 22 on the substrate 1.

[0153] In some embodiments, as shown in FIG7, the angle range between the set direction Z and the first direction Y is 5° to 10°.

[0154] For example, the above-mentioned angle range setting is based on the light emission effect of the first light-emitting unit 21. Since multiple first light-shielding parts 341 extend along the set direction Z and adjacent first light-shielding parts 341 are arranged in parallel, the light emitted by the first light-emitting unit 21 can only be emitted through the gap between adjacent two light-shielding parts 341 under the protection of the first light-shielding parts 341. That is, the emission direction of the light emitted by the first light-emitting unit 21 is parallel to the set direction Z. This setting can not only increase the light emission angle, but also make more of the light emitted by the first light-emitting unit 21 shine towards the human eye.

[0155] For example, continuing to refer to Figure 7, the size L3 of the first light-shielding part 341 along the first direction X can be 15 to 2015 μm, for example, it can be 7.5 μm, 8 μm, 9 μm or 10 μm, etc., and the size L4 of the second light-shielding part 351 along the first direction X can be 15 μm, 16 μm, 17 μm, 18 μm, 19 μm or 20 μm, etc. This is just an example. Specifically, it is only necessary to meet the above size settings.

[0156] In some embodiments, as shown in FIG7, along the direction from the second region BB to the first region AA, the angle θ between the plurality of first light-shielding parts 341 and the second light-shielding parts 351 gradually decreases or decreases stepwise.

[0157] For example, as shown in FIG7, the angle between the plurality of first light-shielding parts 341 and the second light-shielding parts 351 gradually decreases or decreases stepwise. With this configuration, the amount of light emitted by the first light-emitting unit 21 in the plurality of first light-shielding parts 341 that is far from the second region BB is less than the amount of light emitted by the first light-shielding part 341 that is close to the second region BB. In other words, in addition to increasing the light emission angle, the above configuration can also make more of the light emitted by the first light-emitting unit 21 shine towards the human eye.

[0158] For example, when the materials of the first light-shielding part 341, the second light-shielding part 351, and the third light-shielding part 342 are organic materials, the spacing between two adjacent first light-shielding parts 341, and between two adjacent second light-shielding parts 351 and two adjacent third light-shielding parts 342 is 5 μm, and the size of each first light-shielding part 341, each second light-shielding part 351, and each third light-shielding part 342 in the second direction X is 5 μm; when the materials of the first light-shielding part 341, the second light-shielding part 351, and the third light-shielding part 342 are metal oxides, the spacing between the plurality of first light-shielding parts 341, the plurality of second light-shielding parts 351, and the plurality of third light-shielding parts 342 is 3 μm, and the size of each first light-shielding part 341, each second light-shielding part 351, and each third light-shielding part 342 in the second direction X is 3 μm.

[0159] In some embodiments, as shown in FIG8, the privacy screen layer 3 includes a first grating structure 34 and a second grating structure 35. The first grating structure 34 is located in a first region AA, and the second grating structure 35 is located in a second region BB. The first grating structure 34 is used to form a first light channel G1, and the second grating structure 35 is used to form a second light channel G2. The second grating structure 35 includes at least two second light-shielding portions 351 spaced apart. Each of the at least two second light-shielding portions 351 does not overlap with the second light-emitting unit 22 in the first direction Y, and the second direction X is perpendicular to the first direction Y. 51 includes a first light-shielding sub-part 351a extending along the first direction Y and a second light-shielding sub-part 351b extending along the second direction X; the first grating structure 34 includes at least a first light-shielding part 341 and a third light-shielding part 342 spaced apart, the first light-shielding part 341 and the third light-shielding part 342 do not overlap with the first light-emitting unit 21 in the first direction Y; the first light-shielding part 341 is closer to the second region BB than the third light-shielding part 342, the first light-shielding part extends along the second direction X, and the third light-shielding part 342 includes a third light-shielding sub-part 342a extending along the first direction Y and a fourth light-shielding sub-part 342b extending along the second direction.

[0160] For example, referring to Figure 8, the first light-shielding part 341 and the third light-shielding part 342 do not overlap with the first light-emitting unit 21 in the first direction Y. That is, the light emitted by the first light-emitting unit 21 at the interval between the first light-shielding part 341 and the third light-shielding part 342 forms a first light channel G1. Since the first light-shielding part 341 only extends along the second direction X and is close to the second region BB, the first light-shielding part 341 does not have a light-shielding structure in the first direction Y, while the second light-emitting unit 21... The second light-shielding part 351 in the grating structure 35 is provided to block light in both the first direction Y and the second direction X, that is, to limit the emission angle of light in both directions. Thus, it can be seen that the angle of light emitted by the first light-emitting unit 21 is larger than that of the second light-emitting unit 22. The first light channel G1 enables more light emitted along the first light-emitting unit 21 to reach the human eye, so as to ensure that the user can see the information of the first area AA of the display panel 100 in addition to the information of the second area BB in the privacy mode of the large-size display device, that is, to achieve full-screen visualization.

[0161] In some embodiments, referring to FIG8, the first light-shielding sub-part 351a is closer to the center of the second light-emitting unit 22 than the second light-shielding sub-part 351b, and the first light-shielding sub-part 351a and the second light-shielding sub-part 351b are connected at the ends of the second light-emitting unit 22; the third light-shielding sub-part 342a is closer to the center of the first light-emitting unit 21 than the fourth light-shielding sub-part 342b, and the third light-shielding sub-part 342a and the fourth light-shielding sub-part 342b are connected at the ends of the first light-emitting unit 21.

[0162] For example, referring to FIG8, the connection position of the first light-shielding sub-part 351a and the second light-shielding sub-part 351b is configured to form a second light channel G1, and the connection position of the third light-shielding sub-part 342a and the fourth light-shielding sub-part 342b is configured to form a portion of the first light channel G1, so as to avoid excessive light dispersion and affect the light emission effect. That is, the configuration of the connection structure can increase the light effect and improve the display quality of the display panel 100.

[0163] In some embodiments, referring to FIG9, the display panel 100 includes a plurality of pixel areas C arranged in an array, each pixel area C including a regular area C1 and a privacy area C2, and a first light-emitting unit 21 and a second light-emitting unit 22 disposed in the privacy area C2; the plurality of light-emitting units 2 also include a third light-emitting unit 23 disposed in the regular area C1, and a privacy structure layer 3 is transparently disposed above the third light-emitting unit 23; the display panel 100 also includes a plurality of pixel circuits 20; each light-emitting unit 2 includes an anode 201, a light-emitting layer 62 and a cathode layer 63 stacked together; the first light-emitting unit 21 located in the same pixel area C is connected to the light-emitting layer 62 of the third light-emitting unit 23, the anodes 201 are spaced apart from each other and connected to the same pixel circuit; the second light-emitting unit 22 located in the same pixel area C is connected to the light-emitting layer 62 of the third light-emitting unit 23, the anodes 201 are spaced apart from each other and connected to the same pixel circuit 20.

[0164] It should be noted that, referring to Figure 9, each pixel area C includes a normal area C1 and a privacy area C2. The third light-emitting unit 23 located in the normal area C1 is used to achieve normal display, while the first light-emitting unit 21 and the second light-emitting unit 22 located in the privacy area C2 are used to achieve privacy display. At the same time, the first light-emitting unit 21 is located in the first area AA, and the second light-emitting unit 22 is located in the second area BB. That is to say, multiple privacy areas C2 are provided in both the first area AA and the second area BB.

[0165] In the same pixel area C, the light-emitting layers 62 of the second light-emitting unit 22 and the third light-emitting unit 23 are connected, and the anodes 201 are spaced apart and connected to the same pixel circuit or to different pixel circuits for individual control. That is, in the same pixel area C, the pixel circuit controls one or both of the second light-emitting units 22 and the third light-emitting unit 23 to emit light, thereby achieving the privacy mode or sharing mode of the second area BB. Similarly, in the same pixel area C, the light-emitting layers 62 of the first light-emitting unit 21 and the third light-emitting unit 23 are connected, and the anodes 201 are spaced apart and connected to the same pixel circuit. That is, the pixel circuit controls one or both of the first light-emitting unit 21 and the third light-emitting unit 23 to emit light, thereby achieving the privacy mode or sharing mode of the first area AA.

[0166] It should be noted that, referring to Figures 4 to 8, the film layer disposed on the privacy structure layer 3, along the direction away from the substrate 1, includes a protective layer 14, an optical adjustment layer 13, an optical film layer 9, and a cover plate 10. The protective layer 14 is made of an organic material and is used to protect the touch structure layer 8 from damage. The optical film layer 9 is used to reduce the reflection of ambient light from the internal film layer of the display panel 100, preventing ambient light from interfering with the display image of the display panel 100, and thus improving the contrast of the displayed image.

[0167] The following describes the specific connection method of the pixel circuit.

[0168] In some embodiments, referring to FIG10A, the pixel circuit 20 includes a first reset transistor T1, a compensation transistor T2, a driving transistor T3, a writing transistor T4, a first light-emitting control transistor T5, a second light-emitting control transistor T6, a second reset transistor T7, a third light-emitting control transistor T8, and a capacitor C1. The signal lines electrically connected to the pixel driving circuit include a scan signal line Gate, a data signal line Vdata, a first initialization signal line Vinit1, a second initialization signal line Vinit2, a reset signal line Re, a first light-emitting control signal line EM, a second light-emitting control signal line EM2, a first voltage signal line VDD, and a second voltage signal line VSS.

[0169] The control electrode of the first light-emitting control transistor T5 is connected to the light-emitting control signal line EM, the first electrode of the first light-emitting control transistor T5 is connected to the first voltage signal line VDD, and the second electrode of the first light-emitting control transistor T5 is electrically connected to the first electrode of the driving transistor T3.

[0170] The control terminal of the write transistor T4 is electrically connected to the scan signal line Gate, the first terminal of the write transistor T4 is electrically connected to the data signal line Vdata, and the second terminal of the write transistor T4 is electrically connected to the first terminal of the drive transistor T3. The common terminal of the first light-emitting control transistor T5 and the write transistor T4 forms the second node N2.

[0171] The control terminal of driving transistor T3 is connected to capacitor C1, and the second terminal of driving transistor T3 is electrically connected to the first terminal of the second light-emitting control transistor T6. The common terminal of the control terminal of driving transistor T3 and capacitor C1 forms the first node N1. The common terminal of driving transistor T3 and the second light-emitting control transistor T6 forms the third node N3.

[0172] The control electrode of the second light-emitting control transistor T6 is electrically connected to the first light-emitting control signal line EM. The second electrode of the second light-emitting control transistor T6 is connected to the first electrode of the third light-emitting control transistor T8. The second electrode of the second light-emitting control transistor T6 is also connected to the first light-emitting element. The common terminal of the second electrode of the second light-emitting control transistor T6, the first electrode of the third light-emitting control transistor T8, and the first light-emitting element forms the fourth node N4.

[0173] The control electrode of the first reset transistor T1 is electrically connected to the reset signal line Re, the first electrode of the first reset transistor T1 is connected to the first initialization signal line Vinit1, and the second electrode of the first reset transistor T1 is electrically connected to the first node N1.

[0174] The control electrode of the compensation transistor T2 is electrically connected to the scan signal line Gate, the first electrode of the compensation transistor T2 is electrically connected to the third node N3, and the second electrode of the compensation transistor T2 is electrically connected to the first node N1.

[0175] The control electrode of the second reset transistor T7 is electrically connected to the reset signal line Re. The first electrode of the second reset transistor T7 is electrically connected to the second initialization signal line Vinit2. The second electrode of the second reset transistor T7 is electrically connected to the first electrode of the first light-emitting element and to the first electrode of the second light-emitting element. The second electrodes of both the first and second light-emitting elements are electrically connected to the second voltage signal line VSS.

[0176] The control electrode of the third light-emitting control transistor T8 is electrically connected to the second light-emitting control signal line EM2, the first electrode of the third light-emitting control transistor T8 is electrically connected to the second initialization signal line Vinit2, and the second electrode of the third light-emitting control transistor T8 is connected to the fourth node N4.

[0177] Among them, the scan signal line Gate is used to transmit the scan signal, the reset signal line Re is used to transmit the reset timing signal, the first voltage signal line VDD is used to transmit the first voltage signal, such as a high voltage DC signal, the first initialization signal line Vinit1 is used to transmit the first initialization signal, the second initialization signal line Vinit2 is used to transmit the second initialization signal, the data signal line Vdata is used to transmit the data signal data, the first light emission control signal line EM is used to transmit the first light emission control timing signal, and the second voltage signal line VSS is used to transmit the second voltage signal, such as a low voltage DC signal.

[0178] The driving process of the above pixel driving circuit includes multiple frame cycles. One frame cycle includes a reset phase t1, a data refresh and compensation phase t2, and an emission phase t3.

[0179] During the reset phase t1:

[0180] The first reset transistor T1 is turned on under the control of the reset timing signal, so that the first initialization signal is written to the first node N1, thereby resetting the first node N1.

[0181] The second reset transistor T7 is turned on under the control of the reset timing signal, so that the second initialization signal is written to the first terminal of the first light-emitting element and the first terminal of the second light-emitting element, so as to reset the first terminal of the first light-emitting element and the first terminal of the second light-emitting element.

[0182] At this time, the driving transistor T3 is turned on, while the compensation transistor T2, the writing transistor T4, the first light-emitting control transistor T5, the second light-emitting control transistor T6 are all turned off, and the first light-emitting element does not emit light.

[0183] During the data refresh and compensation phase t2:

[0184] The write transistor T4 and the compensation transistor T2 are turned on under the control of the scan signal. The drive transistor T3 maintains the on state of the reset phase t1. Therefore, the data signal data can be transmitted to the first node N1 in sequence through the write transistor T4, the drive transistor T3 and the compensation transistor T2, so that the voltage of the first node N1 changes until the voltage of the first node N1 reaches the sum of the threshold voltage of the drive transistor T3 and the voltage of the data signal data, so that the drive transistor T3 is turned off.

[0185] During the data refresh and compensation phase t2, the threshold voltage of the driving transistor T3 can be written to the first node N1 to compensate for the threshold voltage drift of the driving transistor T3, prevent changes in the driving signal generated by the driving transistor, and avoid affecting the luminous intensity of the OLED.

[0186] During this stage, the first light-emitting control transistor T5 and the second light-emitting control transistor T6 are in an off state under the control of the first light-emitting control timing signal, and the third light-emitting control transistor T8 is in an off state under the control of the second light-emitting control timing signal.

[0187] During the luminescence stage t3:

[0188] The second reset transistor T7 and the first reset transistor T1 are disconnected under the control of the reset timing signal, and the write transistor T4 and the compensation transistor T2 are disconnected under the control of the scan signal.

[0189] The first light-emitting control transistor T5 and the second light-emitting control transistor T6 are turned on under the control of the first light-emitting control timing, thereby allowing the voltage signal of the first voltage signal line VDD to be written to the first terminal of the driving transistor T3. The voltage at the first terminal of the first light-emitting element can be written to the second terminal of the driving transistor T3, thus turning on the driving transistor T3. This forms a path between the first voltage signal line VDD, the first light-emitting element, and the second voltage signal line VSS, causing the first light-emitting element to emit light. And, / or,

[0190] The third light-emitting control transistor T8 is turned on under the control of the second light-emitting control timing, thereby writing the voltage signal of the first voltage signal line VDD to the first terminal of the driving transistor T3, and the voltage of the first terminal of the second light-emitting element can be written to the second terminal of the driving transistor T3, thereby turning on the driving transistor T3, thus forming a path between the first voltage signal line VDD, the second light-emitting element and the second voltage signal line VSS, so that the second light-emitting element emits light.

[0191] In some other embodiments, referring to FIG10B, based on the pixel circuit 20 shown in FIG10A, the pixel circuit 20 further includes a fourth light-emitting control transistor T9 and a third light-emitting control signal line EM3. The control electrode of the fourth light-emitting control transistor T9 is electrically connected to the third light-emitting control signal line EM3, the first electrode of the fourth light-emitting control transistor T9 is connected to the fourth node N4, and the second electrode of the fourth light-emitting control transistor T9 is electrically connected to the first light-emitting element.

[0192] It should be noted that during the light-emitting stage, the second reset transistor T7 and the first reset transistor T1 are disconnected under the control of the reset timing signal, and the write transistor T4 and the compensation transistor T2 are disconnected under the control of the scan signal.

[0193] The first light-emitting control transistor T5 and the second light-emitting control transistor T6 are turned on under the control of the first light-emitting control timing sequence, and the fourth light-emitting control transistor T9 is turned on under the control of the third light-emitting control timing sequence. This causes the voltage signal of the first voltage signal line VDD to be written to the first terminal of the driving transistor T3, and the voltage of the first terminal of the first light-emitting element to be written to the second terminal of the driving transistor T3, thus turning on the driving transistor T3. This forms a path between the first voltage signal line VDD, the first light-emitting element, and the second voltage signal line VSS, causing the first light-emitting element to emit light. And, / or,

[0194] The third light-emitting control transistor T8 is turned on under the control of the second light-emitting control timing, thereby writing the voltage signal of the first voltage signal line VDD to the first terminal of the driving transistor T3, and the voltage of the first terminal of the second light-emitting element can be written to the second terminal of the driving transistor T3, thereby turning on the driving transistor T3, thus forming a path between the first voltage signal line VDD, the second light-emitting element and the second voltage signal line VSS, so that the second light-emitting element emits light.

[0195] For example, the first light-emitting element may be located in the first light-emitting unit 21 or the second light-emitting unit 22, and the second light-emitting element may be located in the third light-emitting unit 23, without specific limitations.

[0196] The following describes the film layer configuration of the display panel in some embodiments.

[0197] The display panel 100 includes a substrate 1, a pixel circuit layer 5, a light-emitting device layer 6, and a packaging structure 7, which are stacked together.

[0198] The substrate 1 is made of a transparent material. For example, the substrate 1 can be a transparent flexible substrate, or it can be a transparent rigid substrate, such as glass or ultrathin glass.

[0199] The pixel circuit layer 5 includes multiple pixel circuits 20, configured to drive the light-emitting device layer 6 to emit light. The pixel circuit layer 20 may include multiple conductive layers, such as a semiconductor layer ACT, a gate conductive layer GT, and a source / drain conductive layer SD, sequentially disposed along a direction perpendicular to and away from the substrate 1. Of course, the array substrate may also include other conductive layers, such as a second source / drain conductive layer; this is not specifically limited here.

[0200] The aforementioned multiple conductive layers form multiple thin-film transistors (TFTs). The thin-film transistors (TFTs) may include a semiconductor pattern 101 located in the semiconductor layer ACT, a gate 102 located in the gate conductive layer GT, and a source 103 and a drain 104 located in the source-drain conductive layer SD.

[0201] The pixel circuit layer 5 may also include an insulating layer located between adjacent conductive layers. For example, the array substrate 10 may include a gate insulating layer GI located between the semiconductor layer ACT and the gate conductive layer GT, and an interlayer dielectric layer ILD located between the gate conductive layer GT and the source / drain conductive layer SD. Of course, the pixel circuit layer 5 may also include other insulating film layers, which will not be described in detail here.

[0202] As shown in Figure 7, the display panel 100 further includes a light-emitting device layer 6. The light-emitting device layer 6 includes a first electrode layer 61, a light-emitting layer 62, and a second electrode layer 63 stacked along the direction away from the substrate 1. The light-emitting device layer 6 includes multiple light-emitting units 2, which can be light-emitting units of different colors, such as red, green, or blue, thereby enabling the display panel 100 to display color images. Alternatively, the multiple light-emitting units can be a single white light-emitting unit or a single blue light-emitting unit. In this case, a color conversion structure is provided above the light-emitting device layer 6 to convert the single color light into the target color. The second electrode layers 63 of the multiple light-emitting units 2 are interconnected to form a continuous, integral layer structure.

[0203] In some embodiments, the second electrode layer 63 is configured as the cathode layer of the light-emitting device layer 6, and the first electrode layer 61 is configured as the anode layer of the light-emitting device layer 6; in other embodiments, the second electrode layer 63 is configured as the anode layer of the light-emitting device layer 6, and correspondingly, the first electrode layer 61 is configured as the cathode layer of the light-emitting device layer 6.

[0204] In some embodiments, the first electrode layer 61 includes a plurality of first electrodes spaced apart, wherein, exemplarily, the first electrodes are anodes.

[0205] The electrodes in the first electrode layer 61 are semi-transparent and semi-reflective electrodes, and the electrodes in the second electrode layer 63 are reflective electrodes. In this case, the display panel 100 is a top-emitting display panel. In other embodiments, the electrodes in the first electrode layer 61 are reflective electrodes, and the electrodes in the second electrode layer 63 are semi-transparent and semi-reflective electrodes. In this case, the display panel 100 is a bottom-emitting display panel. The embodiments disclosed herein do not specifically limit this type of display panel.

[0206] The light-emitting layer 62 includes an organic light-emitting layer (EML). The EML includes multiple organic light-emitting units. When the multiple light-emitting devices are of different colors, the organic light-emitting units of each color are independently arranged. When the multiple light-emitting devices are of the same color, such as white or blue light-emitting devices, the organic light-emitting units of the multiple devices can be connected to form a full-surface structure or can be independently arranged.

[0207] The light-emitting layer 62 may further include at least one common layer, which includes a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer, and an electron injection layer. The hole injection layer and / or the hole transport layer may be disposed between the anode and the organic light-emitting layer (EML), and the electron injection layer and / or the electron transport layer may be disposed between the cathode and the organic light-emitting layer (EML). These are not shown in the figures of this embodiment; for details, please refer to the structure of organic light-emitting diode (OLED) display panels in related technologies. When the light-emitting layer 62 includes one or more of the following: a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer, and an electron injection layer, these layers can be an entire surface structure or can be independently disposed.

[0208] The display panel 100 may further include a pixel defining layer PDL, which is disposed on one side of the array substrate 100. The pixel defining layer PDL includes a plurality of openings, at least a portion of each light-emitting layer 62 is located in one opening, and the plurality of openings of the pixel defining layer PDL can define the light-emitting areas of a plurality of light-emitting units 2.

[0209] The encapsulation structure 7 is located on the side of the light-emitting device layer 6 away from the substrate 1. The encapsulation structure 7 is configured to reduce the risk of moisture and oxygen from the external environment entering the light-emitting device layer 6, thereby improving the lifespan of the display panel 100. As shown in FIG9, the encapsulation structure 7 can be an encapsulation film. In this case, the encapsulation structure 7 can include a first inorganic encapsulation layer and a second inorganic encapsulation layer stacked together.

[0210] For example, the material of the first inorganic encapsulation layer includes one or more combinations of silicon nitride (SiNx), silicon dioxide (SiOx), and silicon oxynitride (SiON). The first inorganic encapsulation layer 301 is formed using a chemical vapor deposition (CVD) process.

[0211] For example, the material of the second inorganic encapsulation layer includes one or more combinations of silicon nitride (SiNx), silicon dioxide (SiOx), and silicon oxynitride (SiON). The second inorganic encapsulation layer 302 is formed using a chemical vapor deposition (CVD) process.

[0212] The display panel 100 also includes an organic encapsulation layer disposed between the first inorganic encapsulation layer and the second inorganic encapsulation layer.

[0213] For example, the organic encapsulation layer is made of one or more polymers selected from acrylic polymers, silicone polymers and epoxy polymers. The above materials are fabricated on the first inorganic encapsulation layer by inkjet printing (IJP) and then cured by ultraviolet light (UV) to form the organic encapsulation layer.

[0214] It should be noted that, referring to Figure 9, the aforementioned encapsulation structure 7 is located between the light-emitting unit 2 and the second light-shielding layer 32, and the thickness of the encapsulation structure 7 is 6µm to 12µm. This thickness setting ensures that the light-emitting unit 2 has a certain distance when emitting light along the opening of the second light-shielding layer 32, facilitating the formation of a first light channel or a part of a second light channel. Referring to Figure 4, there is also a certain gap between the first light-shielding layer 31 and the second light-shielding layer 32. The material at this gap can be a photoresist material or an organic material, and the formed film layer is an optical adjustment layer 13, facilitating the formation of another part of the first light channel or the second light channel.

[0215] In some embodiments, referring to FIG9, the display panel 100 further includes a touch structure layer 8 disposed on the side of the encapsulation structure 7 away from the substrate 1; an optical film layer 9 disposed on the side of the touch structure layer 8 away from the substrate 1; and a cover plate 10 disposed on the side of the optical film layer 9 away from the substrate 1.

[0216] In some embodiments, referring to FIG9 in conjunction with FIG4, the touch structure layer 8 includes at least one conductive layer; any one of the at least one conductive layer serves as a first light-shielding layer 31 and has a first opening K1.

[0217] It should be noted that the first light-shielding layer 31 mentioned above also applies to Figure 5. Based on this, the first lens 331 in Figure 5 can be set or not set, both of which can achieve full-screen visualization in privacy mode.

[0218] For example, the touch structure layer 8 includes a first conductive layer TMA, a second conductive layer TMB, and a touch insulating layer located between the first conductive layer and the second conductive layer. The first conductive layer TMA and the second conductive layer TMB are connected through vias in the touch insulating layer. In some embodiments, both the first conductive layer TMA and the second conductive layer TMB may include a first titanium metal layer, an aluminum metal layer, and a second titanium metal layer sequentially stacked in a direction away from the substrate 1.

[0219] In some embodiments, the optical film layer 9 includes a polarizer, which is used to reduce the reflection of ambient light by the internal film layer of the display panel 100, and prevent ambient light from interfering with the display screen of the display panel 100.

[0220] In other embodiments, referring to FIG9, the optical film layer 9 may include multiple color filters CF and black matrix BM. The black matrix BM has multiple openings, one color filter is located in one opening, and one color filter CF is correspondingly disposed with one light-emitting unit 2.

[0221] The color filter CF can be a red filter, blue filter, or green filter, etc. The color filter CF ensures that the light emitted by the light-emitting unit 2 of the light-emitting element L is a specific color, thereby achieving full-color display of the display panel 100. The black matrix BM can be made of black resin or other light-shielding materials. The black matrix BM is used to separate the light emitted by the color filters CF of different colors to prevent color mixing. The black matrix can also be a structure in which multiple layers of CF are stacked to provide light shielding. Simultaneously, the placement of the color filter CF and the black matrix BM can also reduce the brightness of ambient light entering the display panel 100 to a certain extent, which helps to improve the contrast of the image displayed on the display panel 100.

[0222] Referring to Figure 9, when the display panel 100 adopts a COE (Color Filter On Encapsulation) structure, each filter element CF is correspondingly set with one light-emitting unit 2, and the black matrix BM fills the gap area between adjacent filter elements CF.

[0223] In the case where the optical film layer 9 includes multiple filter sections CF and black matrix BM, in order to ensure the color filtering effect of the filter section CF on the light emitted by the light-emitting unit 2, the light emitted by each light-emitting unit 2 can pass through the corresponding filter section CF and be emitted out, so as to ensure the light emission effect of the display panel 100.

[0224] For example, continuing to refer to FIG9, the display panel 100 may further include a buffer layer 12, which is located between the substrate 1 and the pixel circuit layer 5, and the material of the buffer layer 12 may be silicon nitride.

[0225] As shown in Figures 1 and 11, the embodiments of this disclosure provide a display device 1000, and there are no special restrictions on the specific form of the display device 1000. The display device 1000 adopts the display panel 100 provided in the above embodiments. Therefore, the display device 1000 provided in this disclosure has all the beneficial effects of the display panel 100 provided in any of the above embodiments, which will not be elaborated here.

[0226] Exemplarily, the display device 1000 can be any device that displays images, whether moving (e.g., video) or stationary (e.g., still images), and whether text or images. More specifically, the embodiments described are contemplated to be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal digital assistants (PDAs), handheld or portable computers, GPS receivers / navigators, cameras, MP4 video players, camcorders, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, augmented reality (AR) devices, virtual reality (VR) devices, cockpit controllers and / or displays, displays of camera views (e.g., displays of rearview cameras in vehicles), electronic photographs, electronic billboards or signs, projectors, architectural structures, packaging and aesthetic structures (e.g., displays of images of a piece of jewelry), and any product or component with display functionality. For example, as shown in FIG1, the display device 1000 can be a mobile phone.

[0227] From the perspective of the form of the display device 1000, the display device 1000 can be a flat display device, a curved display device, or a foldable display device, etc. From the perspective of the shape of the display device 1000, the display device 1000 can be a rectangle or a rounded rectangle, etc. From the perspective of the light emission direction of the display device 1000, the display device 1000 can be a top-emitting display device or a bottom-emitting display device. The embodiments disclosed herein do not specifically limit this.

[0228] For example, the above-mentioned display device can be a flexible OLED display device, which can realize a bendable display with a smaller bending radius.

[0229] The above description uses a top-emitting, rectangular, and planar organic light-emitting diode (OLED) display device 1000 as an example to illustrate some embodiments of the present disclosure. However, the implementation of the present disclosure is not limited to this, and any other display device can be considered as long as the same technical concept is applied.

[0230] For example, if the display device 1000 is an OLED display device, then the display panel 100 is an OLED display panel. Furthermore, the display panel 100 described in this disclosure is an example of an OLED display panel, and its structure is explained in detail below.

[0231] This disclosure also provides a method for manufacturing a display panel 100, as shown in Figures 12A to 12C and Figure 9, specifically including the following steps S1 to S9:

[0232] S1. Referring to Figure 12A, substrate 1 is formed.

[0233] For example, substrate 1 can be a glass substrate or a flexible substrate. The flexible substrate can be a polyethylene terephthalate (PET) substrate, a polyethylene naphthalate (PEN) substrate, or a polyimide (PI) substrate, etc. The flexible substrate can be a single layer or multiple layers. If the flexible substrate is a multilayer structure, a buffer layer can be added between the layers. The buffer layer is an inorganic thin film, such as silicon nitride (SiNx), silicon dioxide (SiOx), or a composite layer thereof.

[0234] S2. Referring to Figure 12A, a buffer layer 12 is formed on the substrate 1.

[0235] For example, the material of the buffer layer 12 may be silicon nitride.

[0236] S3. Referring to Figure 12A, a pixel circuit layer 5 is formed on the buffer layer 12.

[0237] For example, the step of forming the pixel circuit layer 5 includes: sequentially forming a plurality of conductive layers. This step may include forming a semiconductor layer ACT, a gate conductive layer GT, and a source / drain conductive layer SD sequentially disposed along a direction perpendicular to and away from the substrate 1. The step of forming the pixel circuit layer 5 further includes: during the formation of the plurality of conductive layers, forming an insulating layer located between adjacent conductive layers, for example, forming a gate insulating layer GI located between the semiconductor layer ACT and the gate conductive layer GT, forming an interlayer dielectric layer ILD located between the gate conductive layer GT and the source / drain conductive layer SD, and forming a planarization layer PLN located on the side of the source / drain conductive layer SD away from the substrate 1.

[0238] The semiconductor layer ACT can be made of either indium gallium zinc oxide or low-temperature polycrystalline oxide; the insulating layer can be made of silicon nitride.

[0239] S4. Referring to Figure 12A, form the light-emitting device layer 6 on the planarization layer PLN.

[0240] Exemplarily, the light-emitting device layer 6 includes a first electrode layer 61, a light-emitting layer 62, and a second electrode layer 63 stacked along a direction away from the substrate 1. The first electrode layer 61 includes a plurality of first electrodes spaced apart, for example, the first electrodes being anodes. The light-emitting layer 62 includes, but is not limited to, a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer.

[0241] It should be noted that the process for forming the light-emitting device layer 6 described above can be achieved using a vapor deposition process.

[0242] S5. Referring to Figure 12A, an encapsulation structure 7 is formed on the light-emitting device layer 6.

[0243] For example, the encapsulation structure 7 includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer disposed in a direction away from the substrate 1. The first and second inorganic encapsulation layers serve to isolate water and oxygen, while the organic encapsulation layer provides stress relief and planarization.

[0244] For example, the materials of the first inorganic encapsulation layer and the second inorganic encapsulation layer may be one or more of silicon nitride (SiNx), silicon dioxide (SiOx), silicon oxynitride (SiON), aluminum oxide (Al2O3), and titanium oxide (TiO2), without specific limitations.

[0245] For example, the first inorganic encapsulation layer and the second inorganic encapsulation layer can be prepared using chemical vapor deposition (CVD) or atomic layer deposition (ALD) processes; the organic encapsulation layer is made of one or more polymers selected from acrylic polymers, silicone polymers, and epoxy polymers, and can be prepared using inkjet printing (IJP), screen printing, dispensing, or other processes, and then cured with ultraviolet light (UV) to form the organic encapsulation layer.

[0246] It should be noted that the first inorganic encapsulation layer covers the area of ​​the display panel used for display, while the coverage area of ​​the organic encapsulation layer is smaller than that of the first inorganic encapsulation layer, and the coverage area of ​​the organic encapsulation layer, when projected onto the substrate 1, at least covers the cathode in the second electrode layer 63. Exemplarily, the coverage area of ​​the second inorganic encapsulation layer can be the same as or larger than that of the first inorganic encapsulation layer.

[0247] For example, the thickness of the first inorganic encapsulation layer can be 2 μm to 8 μm, and the overall thickness of the encapsulation structure 7 is less than 12 μm.

[0248] S6. Referring to Figure 12B, a second light-shielding layer 32 is formed on the encapsulation structure 7.

[0249] S7. Referring to Figure 12B, an optical adjustment layer 13 is formed on the second light-shielding layer 32.

[0250] For example, the thickness of the optical adjustment layer 13 can be 2 μm to 10 μm, so as to form a part of the first optical channel or the second optical channel.

[0251] S8. Referring to Figure 12C, a touch structure layer 8 is formed on the optical adjustment layer 13.

[0252] For example, the touch structure layer 8 includes a first conductive layer TMA, a second conductive layer TMB, and a touch insulating layer located between the first conductive layer and the second conductive layer. The first conductive layer TMA and the second conductive layer TMB are connected through vias in the touch insulating layer. In some embodiments, both the first conductive layer TMA and the second conductive layer TMB may include a first titanium metal layer, an aluminum metal layer, and a second titanium metal layer sequentially stacked in a direction away from the substrate 1.

[0253] S9. Referring to Figures 12C and 9, an optical film layer 9 is formed on the touch structure layer 8.

[0254] For example, the optical film layer 9 can be a polarizer or a color filter layer, which includes multiple color filter sections (CF) and a black matrix (BM). In some embodiments, referring to FIG12C, the optical film layer 9 is a polarizer, in which case a portion of the first conductive layer TMA and the second conductive layer TMB included in the touch structure layer 8 can serve as the first light-shielding layer 31, thereby achieving a light-shielding effect. In other embodiments, referring to FIG8, the optical film layer 9 is a color filter layer, in which case the black matrix set in the color filter layer can serve as the first light-shielding layer 31 to achieve a light-shielding effect. That is to say, in the above cases, it is not necessary to additionally set the first light-shielding layer 31, which can simplify the process and save costs.

[0255] For example, referring to FIG12C, a protective layer 14 is provided between the touch structure layer 8 and the optical film layer 9, wherein the material of the protective layer 14 is an organic material, and the protective layer 14 is used to protect the touch structure layer 8 from damage.

[0256] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0257] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display panel comprising two first regions and a second region located between the two first regions; the display panel comprising: Substrate; A plurality of light-emitting units are disposed on one side of the substrate, the plurality of light-emitting units including a first light-emitting unit disposed in the first region and a second light-emitting unit disposed in the second region; A privacy screen layer is provided on the side of the plurality of light-emitting units away from the substrate. The privacy screen layer includes a first light channel and a second light channel. The first light channel overlaps with the first light-emitting unit in a first direction, and the second light channel overlaps with the second light-emitting unit in the first direction. The first direction is perpendicular to the substrate. The first optical channel is configured to cause at least a portion of the light emitted by the first light-emitting unit to be emitted toward the direction of the second region; the second optical channel is configured to cause at least a portion of the light emitted by the second light-emitting unit to be emitted within a preset angle range.

2. The display panel according to claim 1, wherein, The privacy structure layer includes a first light-shielding layer, the first light-shielding layer includes a first opening, the first opening at least partially overlaps with the first light-emitting unit in the first direction, and the center of the first opening is closer to the second region than the center of the first light-emitting unit; the first opening is used to form at least a portion of the first light channel.

3. The display panel according to claim 2, wherein, The privacy shield layer further includes a second light-shielding layer disposed at a distance from the first light-shielding layer in the first direction, wherein the second light-shielding layer is closer to the substrate than the first light-shielding layer. The second light-shielding layer has a second opening, which overlaps with the first light-emitting unit in the first direction, and the center of the first opening is closer to the second region than the center of the second opening; the first opening and the second opening are used to form the first light channel.

4. The display panel according to claim 3, wherein, The center of the second opening coincides with the center of the first light-emitting unit in the first direction.

5. The display panel according to claim 3 or 4, wherein, The dimension of the first opening along the second direction is greater than the dimension of the second opening along the second direction; the second direction is the arrangement direction of the two first regions and the second region.

6. The display panel according to any one of claims 3 to 5, wherein, The first opening has a first boundary near the second region, and the second opening has a third boundary near the second region; The first boundary is closer to the second region than the third boundary.

7. The display panel according to claim 6, wherein, The first opening further has a second boundary disposed opposite to the first boundary in a second direction, and the second opening further has a fourth boundary disposed opposite to the third boundary in the second direction; the second direction is the arrangement direction of the two first regions and the second region; The distance between the second boundary and the fourth boundary in the first direction is less than the distance between the first boundary and the third boundary.

8. The display panel according to claim 7, wherein, In the orthographic projection onto the substrate, the distance between the first boundary and the third boundary is 1 μm to 4 μm.

9. The display panel according to any one of claims 3 to 8, wherein, The first light-shielding layer is further provided with a third opening, and the second light-shielding layer is provided with a fourth opening. The third opening and the fourth opening overlap with the second light-emitting unit in the first direction, and the center of the third opening, the center of the fourth opening and the center of the second light-emitting unit coincide in the first direction; the third opening and the fourth opening are used to form the second light channel.

10. The display panel according to any one of claims 3 to 9, wherein, The display panel further includes a touch structure layer, which includes at least one conductive layer; Any one of the at least one conductive layer serves as the first light-shielding layer and has the first opening.

11. The display panel according to claim 2, wherein, The privacy shield layer also includes an optical lens layer disposed on the side of the first light-shielding layer away from the substrate; The optical lens layer includes a first lens, which overlaps with the first light-emitting unit in the first direction, and the center of the first lens is closer to the second region than the center of the first light-emitting unit; the first opening and the first lens are used to form the first light channel.

12. The display panel according to claim 11, wherein, The center of the first opening and the center of the first lens coincide in the first direction.

13. The display panel according to any one of claims 1 to 12, wherein, The first opening has a first boundary near the second region, and the light-emitting area of ​​the first light-emitting unit has a fifth boundary near the second region; The first boundary is closer to the second region than the fifth boundary.

14. The display panel according to claim 13, wherein, In the orthographic projection onto the substrate, the distance between the first boundary and the fifth boundary is 1 μm to 2 μm.

15. The display panel according to claim 13, wherein, The first opening has a first boundary away from the second region, and the light-emitting area of ​​the first light-emitting unit has a sixth boundary away from the second region. In a positive projection onto the substrate, the distance between the first boundary and the fifth boundary is greater than the distance between the second boundary and the sixth boundary.

16. The display panel according to any one of claims 11 to 15, wherein, The distance between the orthographic projection of the center of the first lens onto the substrate and the orthographic projection of the center of the first light-emitting unit onto the substrate is 1 μm to 2 μm.

17. The display panel according to any one of claims 11 to 16, wherein, The first opening has a first boundary near the second region, and the first lens has a seventh boundary near the second region; The orthographic projection of the seventh boundary onto the substrate is closer to the second region than the orthographic projection of the first boundary onto the substrate.

18. The display panel according to any one of claims 11 to 17, wherein, The first light-shielding layer is further provided with a fifth opening, and the optical lens layer further includes a second lens. The fifth opening and the second lens overlap with the second light-emitting unit in the first direction, and the center of the fifth opening, the center of the second lens and the center of the second light-emitting unit coincide in the first direction; the fifth opening and the second lens are used to form the second light channel.

19. The display panel according to claim 18, wherein, The dimension of the first lens along the second direction is greater than the dimension of the second lens along the second direction; the second direction is the arrangement direction of the two first regions and the second region.

20. The display panel according to claim 1, wherein, The privacy screen layer includes a first grating structure and a second grating structure, wherein the first grating structure is located in the first region and the second grating structure is located in the second region; the first grating structure is used to form the first light channel and the second grating structure is used to form the second light channel. The first grating structure includes a plurality of first light-shielding portions arranged at intervals along a second direction, and the second grating structure includes a plurality of second light-shielding portions arranged at intervals along the second direction; the second direction is the arrangement direction of the two first regions and the second region; Both the first light-shielding portion and the second light-shielding portion extend along the first direction, and the dimension of the first light-shielding portion along the first direction is smaller than the dimension of the second light-shielding portion along the first direction.

21. The display panel according to claim 20, wherein, The first grating structure further includes at least one third light-shielding portion; the at least one third light-shielding portion is located on the side of the plurality of first light-shielding portions away from the second region; when the first grating structure includes a plurality of the third light-shielding portions, the plurality of third light-shielding portions are arranged at intervals along the second direction; The third light-shielding portion extends along the first direction, and the dimension of the third light-shielding portion along the first direction is greater than the dimension of the first light-shielding portion along the first direction.

22. The display panel according to claim 21, wherein, The dimension of the third light-shielding part along the first direction is equal to the dimension of the second light-shielding part along the first direction.

23. The display panel according to claims 21 and 22, wherein, The dividing line between the plurality of first light-shielding parts and the at least one third light-shielding part passes through the center of the first light-emitting unit.

24. The display panel according to claim 1, wherein, The privacy screen layer includes a first grating structure and a second grating structure, wherein the first grating structure is located in the first region and the second grating structure is located in the second region; the first grating structure is used to form the first light channel and the second grating structure is used to form the second light channel. The first grating structure includes a plurality of first light-shielding portions arranged at intervals along a second direction, and the second grating structure includes a plurality of second light-shielding portions arranged at intervals along the second direction; the second direction is the arrangement direction of the two first regions and the second region; The first light-shielding portion extends along a predetermined direction, and the second light-shielding portion extends along the first direction; the angle between the predetermined direction and the first direction is an acute angle, and the end of the first light-shielding portion away from the substrate is closer to the second light-shielding portion than the end of the first light-shielding portion closer to the substrate.

25. The display panel according to claim 1, wherein, The privacy screen layer includes a first grating structure and a second grating structure, wherein the first grating structure is located in the first region and the second grating structure is located in the second region; the first grating structure is used to form the first light channel and the second grating structure is used to form the second light channel. The second grating structure includes at least two first light-shielding portions spaced apart, each of the at least two first light-shielding portions not overlapping with the second light-emitting unit in a first direction; the first light-shielding portion includes a first light-shielding sub-portion extending along the first direction and a second light-shielding sub-portion extending along a second direction, the second direction being perpendicular to the first direction; The first grating structure includes at least a second light-shielding portion and a third light-shielding portion spaced apart, the second light-shielding portion and the third light-shielding portion not overlapping with the first light-emitting unit in a first direction; the second light-shielding portion is closer to the second region than the third light-shielding portion, the second light-shielding portion extends along the second direction, and the third light-shielding portion includes a third light-shielding sub-portion extending along the first direction and a fourth light-shielding sub-portion extending along the second direction.

26. The display panel according to claim 25, wherein, The first light-shielding sub-part is located near the center of the second light-emitting unit relative to the second light-shielding sub-part, and the first light-shielding sub-part is connected to the end of the second light-shielding sub-part near the second light-emitting unit; the third light-shielding sub-part is located near the center of the first light-emitting unit relative to the fourth light-shielding sub-part, and the third light-shielding sub-part is connected to the end of the fourth light-shielding sub-part near the first light-emitting unit.

27. The display panel according to any one of claims 1 to 26, wherein, The display panel includes multiple pixel areas arranged in an array, each pixel area including a regular area and a privacy area, the first light-emitting unit and the second light-emitting unit being disposed in the privacy area; the multiple light-emitting units also include a third light-emitting unit, the third light-emitting unit being disposed in the regular area.

28. A display device comprising a display panel as claimed in any one of claims 1 to 27.

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