A display panel and display device

Abstract

The application discloses a display panel and a display device, and belongs to the technical field of display. The display panel comprises a substrate substrate; a first pixel area and a second pixel area are arranged adjacently on the substrate substrate, the first pixel area comprises a plurality of independently arranged sub-pixels, and the second pixel area comprises a plurality of independently arranged sub-pixels; part of the sub-pixels in the first pixel area and the second pixel area are used for constituting display pixels, and the remaining sub-pixels in the first pixel area and the second pixel area are used for constituting anti-peep pixels; when the display panel is in a shared display mode, the display pixels and the anti-peep pixels emit light, or the display pixels emit light; when the display panel is in an anti-peep display mode, the anti-peep pixels emit light. The technical scheme can improve the pixel design freedom of the display panel with display and anti-peep switchable functions.

Description

Technical Field

[0001] This application belongs to the field of display technology, and in particular relates to a display panel and a display device. Background Technology

[0002] Currently, OLED (Organic Light Emitting Diode) display panels are being used more and more widely. At the same time, users are also raising new demands for the functionality of these display panels. For handheld terminal display panels, users want privacy to be protected and the risk of information leakage reduced when processing private data; for in-vehicle terminal display panels, users want to ensure that the driver and passenger displays do not interfere with each other, thereby protecting driving safety. Summary of the Invention

[0003] This application provides a display panel and a display device, which improves the pixel design freedom of a display panel that can switch between display and privacy by partitioning display pixels and privacy pixels.

[0004] In a first aspect, this application provides a display panel, including:

[0005] Substrate;

[0006] Adjacent first pixel region and second pixel region are disposed on the substrate. The first pixel region includes multiple independently disposed sub-pixels, and the second pixel region includes multiple independently disposed sub-pixels.

[0007] A portion of the sub-pixels within the first pixel region and the second pixel region are used to form a display pixel, and the remaining sub-pixels within the first pixel region and the second pixel region are used to form a privacy pixel.

[0008] When the display panel is in shared display mode, the display pixels and privacy pixels are illuminated, or the display pixels are illuminated; when the display panel is in privacy display mode, the privacy pixels are illuminated.

[0009] In some embodiments, the first pixel region and the second pixel region respectively include a display sub-pixel and a privacy sub-pixel;

[0010] Alternatively, the first pixel region may include a display subpixel and a privacy subpixel, and the second pixel region may include a display subpixel and a privacy subpixel.

[0011] In some embodiments, the first pixel region and the second pixel region are adjacent in the row direction of the substrate; or,

[0012] The first pixel region and the second pixel region are adjacent in the column direction of the substrate; or,

[0013] The first pixel region and the second pixel region are adjacent in both the row and column directions of the substrate.

[0014] In some embodiments, the display sub-pixels and the privacy sub-pixels of the same color may have the same or different sizes.

[0015] In some embodiments, the arrangement of the plurality of sub-pixels in the first pixel region may be the same as or different from the arrangement of the plurality of sub-pixels in the second pixel region.

[0016] In some embodiments, the above-mentioned privacy sub-pixel includes at least two distributed privacy pixel units;

[0017] The display panel also includes:

[0018] A light-shielding layer is disposed on the side of the privacy pixel facing away from the substrate. The light-shielding layer includes light-shielding units that are disposed one-to-one with the privacy pixel. Each light-shielding unit includes a light-transmitting opening and a light-shielding part. The orthogonal projection of the light-transmitting opening on the substrate covers the orthogonal projection of the privacy pixel unit on the substrate.

[0019] In some embodiments, in each privacy sub-pixel, the number of privacy sub-pixel units arranged in the row direction ranges from 1 to 10, and / or the number of privacy sub-pixel units arranged in the column direction ranges from 1 to 10.

[0020] In some embodiments, the aforementioned privacy pixel units are staggered in the row direction, and / or the privacy pixel units are staggered in the column direction.

[0021] In some embodiments, the shapes of the privacy-protecting sub-pixel unit and the display sub-pixel may be the same or different; or...

[0022] The at least one display subpixel includes at least two display subpixel units, and the privacy subpixel unit and the display subpixel unit may be the same or different.

[0023] On the other hand, this application provides a display device including the display panel mentioned in any of the above embodiments.

[0024] In this embodiment, adjacent first pixel regions and second pixel regions are formed on the substrate. Each first pixel region includes multiple independently configured sub-pixels, and each second pixel region includes multiple independently configured sub-pixels. A portion of the sub-pixels within both the first and second pixel regions are used to form display pixels, while the remaining sub-pixels within both regions form privacy pixels. Because the display and privacy sub-pixels are independently configured, the distance requirements between them are easily met, and the arrangement of each sub-pixel can be arbitrarily set. This effectively improves the space utilization of the display panel, allowing for a larger pixel aperture ratio. Therefore, the design freedom for display and privacy sub-pixels in the display panel is increased. Furthermore, from a manufacturing perspective, separating the display and privacy sub-pixels reduces manufacturing complexity and improves the production yield of the display panel. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 A schematic diagram illustrating the arrangement of some pixels on a display panel, provided for related technologies;

[0027] Figure 2 This is a cross-sectional schematic diagram of a display panel provided in an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the structure of a portion of a pixel area of ​​a display panel provided in an embodiment of this application;

[0029] Figure 4A , Figure 4B and Figure 4C This is a schematic diagram of the pixel region arrangement in the first mode of the embodiments of this application;

[0030] Figure 5A and Figure 5B This is a schematic diagram of the pixel region arrangement in the second mode of the embodiments of this application;

[0031] Figure 6A , Figure 6B and Figure 6C This is a schematic diagram of the pixel region arrangement in the third mode of the embodiments of this application;

[0032] Figure 7 A schematic diagram of a shared area and a privacy protection area provided in an embodiment of this application;

[0033] Figure 8A This is a schematic diagram of the specific pixel arrangement of a display panel provided in an embodiment of this application;

[0034] Figure 8B This is a schematic diagram showing the specific pixel arrangement of another display panel provided in an embodiment of this application;

[0035] Figure 9A This is a schematic diagram illustrating the specific pixel arrangement of another display panel provided in an embodiment of this application;

[0036] Figure 9B This is a schematic diagram illustrating the specific pixel arrangement of another display panel provided in an embodiment of this application;

[0037] Figure 10 A schematic diagram of the orthographic projection of a privacy sub-pixel and a light-shielding layer on a substrate provided in an embodiment of this application;

[0038] Figure 11 A schematic diagram of the size of a display pixel is provided for an embodiment of this application;

[0039] Figure 12 A schematic diagram of the dimensions of a privacy pixel provided in an embodiment of this application;

[0040] Figure 13 This is a schematic diagram of the structure of a mask provided in an embodiment of this application;

[0041] Figure 14 This is a schematic diagram illustrating another arrangement of sub-pixels provided in an embodiment of this application;

[0042] Figure 15 This is a schematic diagram of another mask provided in an embodiment of this application;

[0043] Figures 15A to 15F This application provides several different pixel arrangement diagrams for embodiments;

[0044] Figure 16 This is another pixel arrangement diagram provided in the embodiments of this application;

[0045] Figure 17 This is another pixel arrangement diagram provided in the embodiments of this application;

[0046] Figure 18A A schematic diagram of a mask opening and vapor deposition process provided in an embodiment of this application;

[0047] Figure 18B A schematic diagram of a partially chamfered pixel arrangement provided for an embodiment of this application;

[0048] Figure 19 A circuit diagram of a pixel driving circuit provided in an embodiment of this application;

[0049] Figure 20A schematic diagram illustrating the positional relationship between an optical element, a light-shielding layer, and a privacy sub-pixel provided in an embodiment of this application;

[0050] Figure 21 This is a schematic diagram illustrating the positional relationship between a light-shielding layer, a display sub-pixel, and a privacy sub-pixel, provided in an embodiment of this application.

[0051] Figure 22 This is a schematic diagram illustrating an application scenario of a display device with display and privacy switching functions, provided for related technologies. Detailed Implementation

[0052] The technical solutions in some embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application are within the scope of protection of this application.

[0053] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open and encompassing, that is, "including, but not limited to".

[0054] 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 technical features indicated. Therefore, 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 application, unless otherwise stated, "a plurality of" means two or more.

[0055] In describing some embodiments, the term "connection" and its derivative expressions may be used. The term "connection" should be interpreted broadly; for example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. For example, in describing some embodiments, the term "connection" may be used to indicate that two or more components have direct physical or electrical contact with each other.

[0056] 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.

[0057] 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.

[0058] This document describes exemplary embodiments with reference to cross-sectional views, which are intended as 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 limited to the shapes of the regions shown herein, but rather include shape deviations caused, for example, by manufacturing processes. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of areas of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0059] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0060] Currently, OLED (Organic Light Emitting Diode) display panels are being used more and more widely. At the same time, users are also raising new demands for the functionality of these display panels. For example, for handheld terminal display panels, users want privacy protection and reduced risk of information leakage when handling private data. Similarly, for in-vehicle terminal display panels, users want the driver and passenger displays to operate independently, thus ensuring driving safety. Based on these functionalities, users also expect flexible privacy protection features for the display panels.

[0061] In related technology 1, a privacy film is applied to the display panel to ensure user privacy and meet their privacy needs. However, this privacy technology cannot switch between privacy mode and display mode, and the low light transmittance after applying the privacy film severely affects the brightness of the display panel. For example, when the user is in a private space, privacy is not required, but the display panel cannot be switched to a wide viewing angle. Therefore, the flexibility and display quality of using a privacy film for privacy protection are both low.

[0062] In related technology 2, such as Figure 1 As shown, Figure 1 This is a schematic diagram illustrating the arrangement of some pixels on a display panel, provided for related technologies.

[0063] This display panel simultaneously sets display and privacy subpixels within a single subpixel unit. Specifically, it places corresponding privacy subpixels around the display subpixels. For example, a red subpixel unit includes a red display subpixel R1 and a red privacy subpixel R2; a green subpixel unit includes a green display subpixel G1 and a green privacy subpixel G2; and a blue subpixel unit includes a blue display subpixel B1 and a blue privacy subpixel B2. This allows for switching between display and privacy modes. In display mode, users can clearly observe the content displayed on the panel from a wider angle; in privacy mode, users can only observe the content from a narrower angle.

[0064] However, this configuration imposes significant design limitations on the display and privacy subpixels to meet practical manufacturing requirements. It often necessitates balancing numerous factors, such as the required spacing between them, their arrangement, and their aperture ratios. Therefore, in related technologies, display panels with switchable display and privacy functions offer limited design flexibility.

[0065] Furthermore, in the actual manufacturing of display panels, due to the limitations of the etching process, when the anodes of conventional display sub-pixels and privacy sub-pixels are designed independently, adjacent display sub-pixels and privacy sub-pixels are prone to anode etching residue. Therefore, it is not conducive to the high-yield production of display panels with switchable display and privacy functions.

[0066] Furthermore, in related technologies, display panels with switchable display and privacy functions are prone to color deviation. Of course, the spacing between display subpixels and privacy subpixels within the subpixel unit is difficult to meet higher design requirements, which also limits the practical application of display panels with switchable display and privacy functions.

[0067] To address at least one of the aforementioned problems, this application provides a display panel.

[0068] Figure 2 This is a cross-sectional schematic diagram of a display panel provided in an embodiment of this application. Figure 3 This is a schematic diagram of the pixel arrangement of a display panel provided in an embodiment of this application.

[0069] like Figure 2 As shown, the display panel includes a substrate 1, and privacy pixels 5 and display pixels 4 can be disposed on the substrate 1 to enable the display panel to have switchable display and privacy functions.

[0070] In one example, the substrate 1 can be made of either glass or a flexible material. Flexible materials include materials such as PI, PEN, and PET.

[0071] In one example, the substrate 1 can be a single-layer or multi-layer structure. If the substrate 1 is a multi-layer structure, a buffer layer can be added between the layers. The buffer layer is an inorganic thin film. The material of the buffer layer can be SiNx and SiOx, or a mixed film layer of SiNx and SiOx.

[0072] Figure 3 This is a schematic diagram of the structure of a portion of a pixel area of ​​a display panel provided in an embodiment of this application, such as... Figure 3 As shown in the embodiment of this application, the specific arrangement of the privacy pixel 5 and the display pixel 4 can be achieved by setting adjacent first pixel regions 2 and second pixel regions 3, where the first pixel region 2 includes multiple independently configured sub-pixels P, and the second pixel region 3 may also include multiple independently configured sub-pixels P. Furthermore, some sub-pixels P within the first pixel region 2 and the second pixel region 3 are used to constitute the display pixel 4, and the remaining sub-pixels P within the first pixel region 2 and the second pixel region 3 are used to constitute the privacy pixel 5. When the display panel is in shared display mode, both the display pixel 4 and the privacy pixel 5 emit light, or the display pixel 4 emits light; when the display panel is in privacy display mode, the privacy pixel 5 emits light.

[0073] The aforementioned first pixel region 2 and second pixel region 3 can include a privacy sub-pixel 7 and a display sub-pixel 6. This embodiment does not limit the specific inclusion or arrangement, but the privacy sub-pixel 7 and display sub-pixel 6 within each pixel region are independently configured. This easily meets the distance requirements between the display sub-pixel 6 and the privacy sub-pixel 7, and allows for arbitrary arrangement of each sub-pixel, effectively improving space utilization in the display panel. In other words, it maximizes the pixel aperture ratio in the display panel, thus increasing the design freedom of the display sub-pixel 6 and the privacy sub-pixel 7. Furthermore, from a manufacturing perspective, independently configuring the display sub-pixel 6 and the privacy sub-pixel 7 reduces manufacturing complexity and improves the production yield of the display panel.

[0074] In this embodiment, the multiple sub-pixels of adjacent first pixel region 2 and second pixel region 3 constitute a display pixel 4 and a privacy pixel 5, which can include two cases:

[0075] In the first case, the first pixel region 2 and the second pixel region 3 may include a display sub-pixel 6 and a privacy sub-pixel 7, respectively. That is, the first pixel region 2 includes the display sub-pixel 6, and the second pixel region 3 includes the privacy sub-pixel 7. In this case, the first pixel region 2 also constitutes a display pixel 4, and the second pixel region 3 also constitutes a privacy pixel 5.

[0076] For example Figure 4A , Figure 4B and Figure 4C As shown, the first pixel region 2 only includes the display sub-pixel 6, which can be called the shared region, and the second pixel region 3 only includes the privacy sub-pixel 7, which can be called the privacy region.

[0077] In the second scenario, the first pixel region 2 and the second pixel region 3 can both include the display sub-pixel 6 and the privacy sub-pixel 7. For example, if each pixel includes red, green, and blue sub-pixels, the privacy pixel 5 and the display pixel 4 would require a total of 6 sub-pixels. In this case, the first pixel region 2 could include three sub-pixels, and the second pixel region 3 could include three sub-pixels. For example... Figure 5A and Figure 5B As shown, the first pixel region 2 includes one display sub-pixel 6 and two privacy sub-pixels 7, and the second pixel region 3 includes two display sub-pixels 6 and one privacy sub-pixel 7, which is equivalent to the two pixel regions selecting one type of sub-pixel to swap positions.

[0078] In this embodiment, "adjacent" refers to being close to each other in position, such as being adjacent in the row direction or adjacent in the column direction, as described above. Figure 4A As shown, the first pixel region 2 and the second pixel region 3 are adjacent in the row direction of the substrate 1; or, as... Figure 4B As shown, the first pixel region 2 and the second pixel region 3 are adjacent in the column direction of the substrate 1; or, as described above. Figure 4C and Figure 5A As shown, the first pixel region 2 and the second pixel region 3 are adjacent in both the row and column directions of the substrate 1.

[0079] In some embodiments, the overall size of the first pixel region 2 and the second pixel region 3 can be the same or different. For example Figure 6A , Figure 6B and Figure 6C As shown, the size of the first pixel region 2 can be set to be larger than the size of the second pixel region 3; especially Figure 6CAs shown, in the above embodiment, when the first pixel region 2 and the second pixel region 3 are adjacent in both the row direction and the column direction of the substrate 1, the second pixel region 2 can surround the second pixel region 3, that is, the shared regions located around the same privacy protection area intersect with each other.

[0080] In this embodiment, for display sub-pixels 6 and privacy sub-pixels 7 of the same color, their respective sizes can be set to be the same or different. When the first pixel region 2 and the second pixel region 3 respectively include display sub-pixels 6 and privacy sub-pixels 7, if they are set to be the same, the overall size of the first pixel region 2 and the second pixel region 3 will also be the same. If they are set to be different, the overall size of the first pixel region 2 and the second pixel region 3 will also be different.

[0081] For example, Figure 7 A schematic diagram of a shared area and a privacy protection area provided in an embodiment of this application is shown below. Figure 7 As shown in Figure (7a), the length of the shared region is GX and the width is GY; Figure 7 As shown in Figure (7b), the length of the privacy protection area is PX and the width is PY. Among them, GX, GY, PX, and PY can be the same or different.

[0082] In the display panel provided in this embodiment, the ratio of the total light-emitting area of ​​display pixel 4 to the total light-emitting area of ​​privacy pixel 5 is n, where n takes any value from 0.3 to 3. By adjusting the ratio of the total light-emitting area of ​​display pixel 4 to the total light-emitting area of ​​privacy pixel 5, the privacy protection effect of the display panel can be precisely adjusted.

[0083] Furthermore, since the first pixel region 2 and the second pixel region 3 mentioned above include multiple sub-pixels P, the arrangement of the sub-pixels P in each pixel region can be the same or different. For example, in the case of three sub-pixels P, the arrangement of the three sub-pixels P in the first pixel region can be the same or different from the arrangement of the three sub-pixels P in the second pixel region.

[0084] In the following embodiments, each pixel will be described using sub-pixels of three colors: red, green, and blue. Figure 8A This is a schematic diagram illustrating the specific pixel arrangement of a display panel according to an embodiment of this application. Figure 8B This is a schematic diagram illustrating the specific pixel arrangement of another display panel provided in an embodiment of this application, as shown below. Figure 8A and Figure 8BAs shown, a first pixel region 2 and a second pixel region 3 are disposed adjacently on the substrate 1. Each pixel region includes three sub-pixels. For example, the first pixel region 2 includes three independently disposed sub-pixels, and the second pixel region 3 includes three independently disposed sub-pixels. In this case, a total of six sub-pixels are included in the two adjacent pixel regions.

[0085] Furthermore, three sub-pixels within the first pixel region 2 and the second pixel region 3 can be selected to form display pixel 4, and the remaining three sub-pixels within the first pixel region 2 and the second pixel region 3 can form privacy pixel 5. When the display panel is in shared display mode, display pixel 4 and privacy pixel 5 emit light, or display pixel 4 emits light; when the display panel is in privacy display mode, privacy pixel 5 emits light.

[0086] In some embodiments, such as Figure 9A As shown in (A), (B), and (C), the first pixel region 2 and the second pixel region 3 respectively include a display sub-pixel 6 and a privacy sub-pixel 7. The display sub-pixel 6 in the display pixel 4 is responsible for presenting high-quality images and video content, while the privacy sub-pixel 7 in the privacy pixel 5 is designed to limit the viewing angle when viewing the screen, protecting user privacy.

[0087] In this embodiment, by adjusting the arrangement of the privacy sub-pixels 7, the privacy range and privacy strength of the display panel can be precisely controlled, thereby meeting the privacy protection needs of different users for the display panel; by adjusting the arrangement of the display sub-pixels 6, this application can balance the key display parameters of the display panel such as color saturation, brightness and contrast, and can also ensure that users can be provided with an excellent visual experience under various lighting conditions.

[0088] Of course, this application sets the display pixel 4 and the privacy pixel 5 in two separate areas, that is, sets the display sub-pixel 6 and the privacy sub-pixel 7 in separate areas. With this setting, when actually manufacturing the display panel, the problem of anode etching residue between the display sub-pixel 6 and the privacy sub-pixel 7 can be minimized or avoided as much as possible. This enables the mass production of high-yield display panels with switchable display and privacy functions.

[0089] Furthermore, by setting the display pixel 4 and the privacy pixel 5 in two separate areas, this application can increase the design freedom of the display sub-pixel 6 and the privacy sub-pixel 7 in the display panel, and at the same time effectively improve the space utilization rate in the display panel, that is, the pixel aperture ratio can be maximized in the display panel.

[0090] In addition, from a manufacturing perspective, separating the display pixels (4) and privacy pixels (5) into separate zones can reduce manufacturing complexity and improve the production yield of the display panel.

[0091] In some embodiments, it can be as follows Figure 9B As shown in (D), (E), and (F), the arrangement of the privacy sub-pixel 7 and the display sub-pixel 6 can be adjusted to meet the optical and lifespan requirements of the display panel in different scenarios. For example, the two pixel areas mentioned above can each include one display sub-pixel 6 and two privacy sub-pixels 7. Specifically, it can be as follows: Figure 8B As shown in Figure (D), the first pixel region 2 includes two privacy sub-pixels 7 and one display sub-pixel 6, and the second pixel region 3 includes one privacy sub-pixel 7 and two display sub-pixels 6.

[0092] Alternatively, in another example, the first pixel region 2 includes a display sub-pixel 6 and two privacy sub-pixels 7, and the second pixel region 3 includes two display sub-pixels 6 and one privacy sub-pixel 7.

[0093] The above arrangement can be seen as a way of swapping one of the sub-pixels of display pixel 4 and privacy pixel 5. For example, swapping one of the sub-pixels of the three colors. This arrangement can share the spacing between display sub-pixel 6 and privacy sub-pixel 7 in the display panel to a greater extent in display mode, thereby making the display panel display effect better.

[0094] It is understood that in the embodiments of this application, for any first pixel region 2, one or more adjacent second pixel regions 3 may be set around it. Therefore, for the display sub-pixel 6 in the first pixel region 2, it can form a display pixel 4 with other display sub-pixels 6 in any adjacent second pixel region 3, and the privacy sub-pixel 7 in the first pixel region 2 can form a privacy pixel 5 with other privacy sub-pixels 7 in any adjacent second pixel region 3.

[0095] In addition, Figure 8A and Figure 8B The specific pixel arrangement shown can be further configured in some cases, such as... Figure 9A and Figure 9B The specific pixel arrangement shown differs between the two in the shape of the specific sub-pixels and the arrangement of sub-pixels in each pixel region. Figure 8A and Figure 8B In the image, each sub-pixel has a different area, and the length of the blue sub-pixel in the Y direction is approximately equal to the lengths of the green and red sub-pixels in the Y direction. Figure 8A and Figure 8B In this context, the length of each sub-pixel in the Y direction can be the same. For example... Figure 9AIn (A), (B), and (C), the display sub-pixel 6 and the privacy sub-pixel 7 are independently set in different pixel regions. These different pixel regions can be adjacent in the row direction, adjacent in the column direction, or adjacent in both the row and column directions. This setting reduces manufacturing complexity and ensures privacy protection. Figure 9B In (D), (E) and (F), each pixel region includes a display sub-pixel 6 and a privacy sub-pixel 7. Different pixel regions can be adjacent in the row direction, adjacent in the column direction, or adjacent in both the row and column directions. This setting allows for better sharing of the display sub-pixel 6 and the privacy sub-pixel 7, ensuring a good display effect.

[0096] Furthermore, such as Figure 2 As shown, the display panel in this embodiment further includes a pixel delimiting layer (PDL), which has multiple pixel openings. The display sub-pixel 6 and the privacy sub-pixel 7 are each located within one pixel opening. By defining the size and shape of each pixel opening, the sizes of the display sub-pixel 6 and the privacy sub-pixel 7 can be the same or different. Furthermore, for each pixel region, such as the first pixel region 2 and the second pixel region 3, the three sub-pixels in the first pixel region 2 can be configured to have the same or different shapes; or, the three sub-pixels in the second pixel region 3 can have the same or different shapes.

[0097] In some embodiments, as described above Figure 2 As shown, a buffer layer, a patterned active layer Source, a first insulating layer GI, a first gate electrode Gate, a source / drain electrode layer SD, a planarization layer PLN are also formed sequentially on the substrate 1 of the display panel. An anode pattern, a pixel definition layer PDL, a light-shielding layer 9, an encapsulation layer TFE and other structures are fabricated on the planarization layer PLN.

[0098] In one example, the encapsulation layer TFE comprises an inorganic thin film layer that blocks water and oxygen, and an organic layer that provides stress relief and planarization. The inorganic thin film layer is prepared using chemical vapor deposition or atomic layer deposition methods, and the material of the inorganic thin film layer can be silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide, titanium oxide, etc.; the organic layer is prepared using inkjet printing, screen printing, dispensing, or other methods.

[0099] Furthermore, this application utilizes a vacuum evaporation process to form an organic light-emitting layer 201 and a cathode on a backplane. In some embodiments, the organic light-emitting layer 201 includes films such as a hole injection layer, a hole transport layer, a light-emitting layer, and an electron transport layer.

[0100] In the embodiments of this application, Figure 10This is a schematic diagram of the orthographic projection of a privacy pixel and a light-shielding layer on a substrate, provided as an embodiment of this application. For example... Figure 2 and Figure 10 As shown, the privacy pixel 7 on the display panel can be implemented by setting a light-shielding layer 9 on the display panel. The light-shielding layer 9 restricts the emitted light of the privacy pixel 7, thereby limiting its visible range to a certain area. In order to better limit the visible range, each privacy pixel 7 can be divided into at least two privacy pixel units. The light-emitting area of ​​each privacy pixel unit is reduced, making it easier to achieve the privacy function. In this embodiment, for the case of setting at least two privacy pixel units, the light-shielding layer 9 is further set to include light-shielding units that correspond one-to-one with the privacy pixel 7.

[0101] For example Figure 10 As shown, for a privacy pixel comprising three privacy sub-pixels 7, namely a red privacy sub-pixel, a green privacy sub-pixel, and a blue privacy sub-pixel, three light-blocking units are set. Each privacy sub-pixel can further include a privacy sub-pixel unit, such as a red privacy sub-pixel unit r2 and a green privacy sub-pixel unit g. 2， The blue privacy-protecting sub-pixel unit b2 has a light-shielding unit comprising a light-transmitting opening V and a light-shielding portion 9a forming the light-transmitting opening V. The orthographic projection of the light-shielding portion 9a onto the substrate 1 covers the orthographic projection of the corresponding privacy-protecting sub-pixel unit onto the substrate 1. Thus, for any privacy-protecting sub-pixel unit, the light emission angle of the privacy-protecting sub-pixel unit in various directions can be adjusted by flexibly adjusting the size of the light-shielding portion 9a in each direction, thereby achieving a good privacy-protecting effect and meeting the user's needs under different application scenarios.

[0102] Optionally, the material of the light-shielding part 9a in the light-shielding layer 9 can be a thin metal film chromium or black resin, the main function of which is to absorb the emitted light and control the light emission angle of the light-emitting area.

[0103] Furthermore, the light-shielding layer 9 may include K layers, where K is any integer from 1 to 5. The thickness of each layer of the light-shielding layer 9 ranges from [0.8 μm to 5 μm]. For example, the thickness of each layer of the light-shielding layer 9 may be 0.8 μm, 1 μm, 1.2 μm, 1.5 μm, 2 μm, 2.5 μm, 3 μm, 3.5 μm, 4 μm, 4.5 μm, or 5 μm.

[0104] This application can improve the effect of blocking light from different angles by adjusting the thickness of different light-blocking layers 9.

[0105] like Figure 2 As shown in the embodiment of this application, the orthographic projections of the light-shielding portions in the light-shielding layers 9 of different layers on the substrate 1 can overlap, and K = 2.

[0106] Optionally, the K-layer light-shielding layer 9 is stacked along the direction away from the substrate 1, and a first adhesive layer 61 is disposed between adjacent layers. The material of the first adhesive layer 61 may be, for example, optical adhesive.

[0107] In some embodiments, still referring to the above-described example 10, the edges of the red privacy pixel unit r2 are located at distances r from the light-shielding layer 9 in the X and Y directions, respectively. 2a and r 2b The edges of the green privacy pixel unit g2 are at distances g from the light-shielding layer 9 in the X and Y directions, respectively. 2a and g 2b The edges of the blue privacy pixel unit b2 are located at distances b from the light-shielding layer 9 in the X and Y directions, respectively. 2a and b 2b .

[0108] Where, r 2a、 g 2a and b 2a Any two in r can be equal or unequal; 2b g 2b and b 2b Any two of them can be equal or unequal.

[0109] Of course, in the embodiments of this application, the distances from the orthogonal projection edges of the red privacy pixel unit r2, the green privacy pixel unit g2, and the blue privacy pixel unit b2 to the light-shielding layer 9 in the X and Y directions can be equal or unequal.

[0110] Figure 11 This is a schematic diagram of the size of a display pixel provided in an embodiment of this application. Figure 12 This application provides a schematic diagram illustrating the dimensions of a privacy pixel in an embodiment. For example... Figure 11 and Figure 12 As mentioned above, the two can be as follows: Figure 8A As shown, each pixel region is set up. In each pixel region, the arrangement of each sub-pixel and the size of the sub-pixels of the same color are the same. The difference is that in the privacy pixel, each privacy sub-pixel 7 is further divided into multiple privacy sub-pixel units.

[0111] like Figure 11 As shown, r1 is the red display subpixel, g1 is the green display subpixel, and b1 is the blue display subpixel. Where r... 1x and r 1y These represent the length and width of the red sub-pixel r1, respectively. Similarly, g1 represents the green sub-pixel, g... 1x and g 1yThese represent the length and width of the green subpixel g1; b1 represents the blue subpixel. 1x and b 1y These represent the length and width of the green sub-pixel b1, respectively.

[0112] like Figure 12 As shown, r2 is the red privacy pixel unit, g2 is the green privacy pixel unit, and b2 is the blue privacy pixel unit. Where r... 2x and r 2y These represent the length and width of the red privacy pixel unit r2, respectively. Similarly, g2 is the green privacy pixel, g... 2x and g 2y b1 represents the length and width of the green privacy pixel unit g2; b2 represents the blue privacy pixel. 2x and b 2y These represent the length and width of the green privacy pixel unit b2, respectively.

[0113] In addition, such as Figure 11 As shown, fr 1x fg 1x , and f b1x These represent the widths of the vapor deposition mask openings on the mask for the red, green, and blue display subpixels, respectively; fr 1y fg 1y , and f b1y These represent the lengths of the vapor deposition mask openings on the mask for the red, green, and blue privacy sub-pixels, respectively. For example... Figure 12 As shown, fr 2x fg 2x , and f b2x These represent the widths of the vapor deposition mask openings on the mask for the red, green, and blue display subpixels, respectively; fr 2y fg 2y , and f b2y These represent the lengths of the vapor deposition mask openings on the mask for the red, green, and blue privacy sub-pixels, respectively.

[0114] In addition, Figure 11 and Figure 12 In this context, gap is the distance from the edge of the display subpixel to the edge of the vapor deposition mask opening of the mask, or the distance from the privacy subpixel unit to the edge of the vapor deposition mask opening of the mask; Margin is the distance from the edge of the display subpixel to the edge of the anode, or the distance from the privacy subpixel unit to the edge of the anode.

[0115] for Figure 11 and Figure 12Subpixels of the same color have the same arrangement and shape; regarding their size, in some embodiments, the display subpixel 6 and the privacy subpixel 7 may have the same or different sizes.

[0116] For example, such as Figure 11 and Figure 12 As shown in the embodiments of this application, subpixels of the same color can be designed to have the same size. For example, the red display subpixel and the red privacy subpixel have the same length and width; the green display subpixel and the green privacy subpixel have the same length and width; and the blue display subpixel and the blue privacy subpixel have the same length and width.

[0117] Furthermore, in the embodiments of this application, when the shape and size of the display sub-pixel 6 and the privacy sub-pixel 7 are the same, the display sub-pixel 6 and the privacy sub-pixel 7 of the same color can be vapor-deposited using the same mask, thereby achieving the effects of simplifying the process, improving production efficiency and reducing costs, as well as improving product quality and consistency.

[0118] Figure 13 This is a schematic diagram of the structure of a mask provided in an embodiment of this application, such as... Figure 13 As shown, this includes three masks: FMM1, FMM2, and FMM3. Mask FMM1 has multiple sub-pixel masks F1, mask FMM2 has multiple sub-pixel masks F2, and mask FMM3 has multiple sub-pixel masks F3, which can correspond to red, green, and blue sub-pixels, respectively. Figure 13 The mask shown can be used to create masks with... Figure 11 and Figure 12 The display panel shows the subpixel arrangement.

[0119] In this embodiment, the sub-pixel arrangement can be adjusted, and correspondingly, the position, shape, and size of the sub-pixel mask openings on the mask can be adjusted according to the adjusted sub-pixel arrangement, thereby reducing the difficulty of mask production.

[0120] Figure 14 This is a schematic diagram of another sub-pixel arrangement provided in an embodiment of this application, as shown below. Figure 11 and Figure 14 As shown in Figure (14a), where blue indicates changes in the shape and size of subpixel b1; as Figure 12 and Figure 14 As shown in Figure (14b), the shape and size of the blue privacy pixel b2 change. (For...) Figure 14 The subpixel arrangement shown can be designed as follows: Figure 15 The mask structure shown is different from the mask structure described above. Figure 13The mask plate in the middle has discontinuous mask openings, resulting in higher mask strength and durability.

[0121] Furthermore, this application simplifies the overall structure of the mask by adjusting the position, shape, and size of the subpixel mask openings. For example, it reduces the number of unnecessary subpixel mask openings and optimizes their position, shape, and size, all of which help reduce the difficulty and cost of mask fabrication.

[0122] As mentioned above Figure 12 As shown, Ax, Bx, and Dx represent the spacing of privacy pixel units of different colors in the X direction; Ay, By, and Dy represent the spacing of privacy pixel units of different colors in the Y direction. The shortest spacing between two adjacent privacy pixel units is between 0.1 and 5 times the size of the privacy pixel unit in their relative directions.

[0123] In the embodiments of this application, in each privacy pixel 7, the privacy pixel units can be arranged in a multi-row, multi-column manner. Specifically, the number of privacy pixel units arranged in the row direction can be 1-10, and / or the number of privacy pixel units arranged in the column direction can be 1-10.

[0124] In some embodiments, for the aforementioned privacy-protecting sub-pixel units, the coordinate system of the display panel can be used as a reference coordinate system, where, in the Y-axis direction, the horizontal coordinates of the centroids of multiple privacy-protecting sub-pixel units in each column are the same; and in the X-axis direction, the vertical coordinates of the centroids of multiple privacy-protecting sub-pixel units in each row are the same, i.e., as described above. Figure 12 and Figure 14 As shown, each row of privacy pixel units can be arranged in a straight line, and each column of privacy pixel units can be arranged in a straight line.

[0125] Figures 15A to 15F The above figures illustrate different pixel arrangements for embodiments of this application. By adjusting the shape and arrangement of display pixel 4 and privacy pixel 5, this application can meet the optical and lifespan requirements of users in different scenarios. For display pixel 4, r1 is a red display sub-pixel, g1 is a green display sub-pixel, and b1 is a blue display sub-pixel. For privacy pixel 5, corresponding color sub-pixels are also provided, but each sub-pixel is divided into different privacy sub-pixel units; specifically, r2 is a red privacy sub-pixel unit, g2 is a green privacy sub-pixel unit, and b2 is a blue privacy sub-pixel unit.

[0126] For example, in some embodiments, such as Figure 15A , 15BAs shown in Figure 15C, the display sub-pixel 6 in display pixel 4 and the privacy sub-pixel 7 in privacy pixel 5 are arranged in the same way. The difference is that the shape of each privacy sub-pixel unit in privacy pixel 5 can be selected in different shapes. In addition to the circles and rectangles shown in the figure, it can also be selected as any one of ellipses, triangles, hexagons, octagons, etc., or any combination of several of them.

[0127] As for the shape of each privacy sub-pixel 7 in display pixel 4, it can be selected as any one of the following: circle, rectangle, ellipse, triangle, hexagon, octagon, or any combination of several.

[0128] Furthermore, the shape of the privacy sub-pixel 7 and the corresponding display sub-pixel 6 can be the same or different.

[0129] It should be noted that the shape of the sub-pixel in this application refers to the outline shape of the sub-pixel's orthographic projection on the substrate 1.

[0130] Additionally, in some embodiments, for example Figure 15D and Figure 15E As shown, the arrangement of each sub-pixel in display pixel 4 and the arrangement of each sub-pixel in privacy pixel 5 can be different.

[0131] In some embodiments, such as Figure 16 As shown, the display sub-pixel 6 and the privacy sub-pixel unit can also be set to the same shape, for example, both can be designed as circles. In this case, the two can be made to have a more consistent display effect.

[0132] Furthermore, in some cases, at least one display subpixel 6 in a display pixel can be configured to consist of multiple display subpixel units. This allows for the selection of the specific structure of the subpixels according to actual needs, in order to better meet the light emission and lifespan requirements of each display panel.

[0133] For example Figure 16 As shown, the blue sub-pixel unit is configured to include 6 blue display sub-pixels b1, the green sub-pixel unit is configured to include 2 green display sub-pixels g1, and the red sub-pixel unit still includes one red display sub-pixel r1. Figure 16 In cases where a subpixel unit comprises multiple subpixels, their spacing can be designed according to actual needs. Subpixel units of different colors can have the same or different spacing. For example, in... Figure 16In Figure (16a), the spacing of the blue sub-pixel unit in the X direction is Lx and the spacing in the Y direction is Ly, while the spacing of the green sub-pixel unit in the Y direction is Ky.

[0134] Furthermore, as shown in the accompanying drawings of the various embodiments described above, in the privacy pixel 5, each row of privacy sub-pixel units can be arranged in a straight line, and each column of privacy sub-pixel units can also be arranged in a straight line. In some cases, depending on actual display requirements, the privacy sub-pixel units can be arranged in an interlaced pattern in the row direction, and / or, the privacy sub-pixel units can be arranged in an interlaced pattern in the column direction. This can be achieved as follows: Figure 17 As shown in Figures (17a), (17b), (17c), and (17d), for different arrangements of the privacy pixel 7, the privacy pixel units can be arranged in a straight line in the column direction and staggered in the row direction. Similarly, they can be staggered in the column direction or staggered in both directions. All of these can be achieved.

[0135] In some embodiments, due to the influence of the mask itself, the evaporation openings of the mask are not strictly rectangular, but rather rounded rectangles. Compared to standard rectangular evaporation openings, the rounded corners of the rounded rectangular evaporation openings are closer to the pixel openings on the pixel definition layer (PDL).

[0136] Therefore, in the evaporation process of luminescent materials, color mixing may occur due to mask alignment errors, or there may be a risk of missing evaporated material in some pixel openings, which can easily lead to electrical failure. In this embodiment, rounded or flat chamfered corners are provided at the corners of the display sub-pixel 6 and / or the privacy sub-pixel 7 closest to each vertex of the sub-pixel.

[0137] Figure 18(A) is a schematic diagram of a mask opening and vapor deposition process provided in an embodiment of this application. As shown in Figure 18(A), when fabricating a mask template (FMM) using an etching process, due to the etching characteristics, the four corners of the designed opening of the mask template (FMM) are often not right angles but rounded corners. In this state, the smaller the distance T between the designed opening and the four corners of the mask template (FMM), the greater the risk of missing vapor deposition material at the four corners of the mask template (FMM).

[0138] Therefore, when the corners of the display subpixel and / or privacy subpixel unit are right angles, the display subpixel and / or privacy subpixel unit can be designed with single-sided or double-sided chamfering to reduce the risk of vapor deposition.

[0139] For example, Figure 18(B) is a schematic diagram of a partially chamfered pixel arrangement provided in an embodiment of this application. As shown in Figure 18(B), the orthographic projection of the sub-pixel on the substrate 1 includes at least four straight edges. The extensions of the four straight edges intersect to form a virtual frame, which includes four vertices.

[0140] As shown in Figures (18a) and (18b) of Figure 18(B), taking the display sub-pixel 6 in display pixel 4 and each privacy sub-pixel unit in privacy pixel 5 as an example where the shape is rectangular, display pixel 4 includes four vertices, display sub-pixel 6 includes multiple first corners, privacy sub-pixel units include multiple second corners, for any vertex, when the sub-pixel closest to the vertex is display sub-pixel 6 and privacy sub-pixel 7, the first corner closest to the vertex among the multiple first corners of display sub-pixel 6 is set to a rounded corner or a flat chamfer; and, among the multiple second corners of privacy sub-pixel units closest to the vertex, the second corner closest to the vertex is set to a rounded corner or a flat chamfer.

[0141] This application reduces the risk of vapor deposition by designing rounded or chamfered corners on both sides or one side of the sub-pixels, while also ensuring that the aperture ratio of the sub-pixels is not reduced too much. The size of the rounded or chamfered corners can be designed with reference to the actual process capability of the mask.

[0142] In the embodiments of this application, such as Figure 2 As shown, the display panel also includes an anode and a cathode. In this embodiment, the anodes of all sub-pixels within the first pixel region 2 and the second pixel region 3 are independently set, thereby enabling each sub-pixel to be controlled independently.

[0143] This application enables each sub-pixel in the display panel, including display sub-pixel 6 and privacy sub-pixel 7, to independently control its light emission by independently setting the anode of all sub-pixels. This allows for more precise control of pixel brightness and color, thereby improving the overall color accuracy and contrast of the displayed image. This fine control helps achieve richer color performance and higher image clarity in the display panel.

[0144] Furthermore, the independent setting of the anode of each subpixel allows for individual adjustment of each subpixel, enabling the display panel to support more complex display effects, such as dynamic range extension, color gradation, and enhanced shadow detail.

[0145] Furthermore, by independently controlling the anode of each subpixel, unnecessary energy consumption can be reduced without affecting the overall brightness of the display panel. For example, when displaying black or dark images, specific subpixels can be turned off, thereby reducing power consumption. Of course, in the privacy display technology of this application, the independent setting of the anode of all subpixels helps to achieve a more effective optical design, making the privacy effect of the display panel more significant, thus enhancing user privacy protection.

[0146] In this embodiment, the cathodes of each sub-pixel can be laid out as a single layer and connected into a unified structure. In some embodiments, it is still as follows Figure 2 As shown, a pixel driving circuit 20 is also formed on the substrate 1. The pixel driving circuit 20 can be configured to correspond one-to-one with all sub-pixels in the first pixel region 2 and the second pixel region 3. The pixel driving circuit 20 can drive the anode of each sub-pixel so that each sub-pixel emits light.

[0147] In this embodiment, the pixel driving circuit 20 establishes a one-to-one correspondence with each sub-pixel. That is, each sub-pixel has a dedicated pixel driving circuit 20 that adjusts the voltage or current signal of each sub-pixel according to the signal received from the controller, thereby controlling the state of each sub-pixel (such as brightness and color) and ensuring that each sub-pixel can be controlled independently and precisely. This setting not only improves the display and privacy protection quality of the display panel, but also enhances the reliability and flexibility of the display panel.

[0148] Alternatively, in other embodiments, a pixel driving circuit 20 may be formed on the substrate 1. Each pixel driving circuit 20 is correspondingly configured with two sub-pixels of the same color in the first pixel region 2 and the second pixel region 3. The two sub-pixels of the same color include a display sub-pixel 6 and a privacy sub-pixel 7. That is, a pair of display sub-pixels 6 and privacy sub-pixels 7 share one pixel driving circuit 20, thereby saving the number of pixel driving circuits 20 on the display panel. This simplifies the number of devices on the display panel, thereby reducing manufacturing complexity, improving product manufacturing yield, and reducing manufacturing costs. It also reduces the space occupied by the pixel driving circuit 20, thereby providing more space for the shared area, thereby improving the aperture ratio and display brightness of the display panel.

[0149] In this embodiment, the pixel driving circuit 20 may include a first switching transistor and a second switching transistor. The first switching transistor is used to drive the display sub-pixel of two sub-pixels of the same color to emit light, and the second switching transistor is used to drive the privacy sub-pixel of two sub-pixels of the same color to emit light. When the display panel is in shared display mode, the first switching transistor and the second switching transistor simultaneously drive the two sub-pixels of the same color to emit light. When the display panel is in privacy display mode, the privacy sub-pixel of two sub-pixels of the same color is driven to emit light, thereby realizing the switching between privacy and display functions.

[0150] Figure 19 A circuit diagram of a pixel driving circuit provided in an embodiment of this application is shown below. Figure 19 As shown, the pixel driving circuit may include ten thin-film transistors. The ten thin-film transistors are, respectively, a first thin-film transistor T1, a first thin-film transistor T2, a third thin-film transistor T3, a fourth thin-film transistor T4, a fifth thin-film transistor T5, a sixth thin-film transistor T6, a seventh thin-film transistor T7, an eighth thin-film transistor T8, a ninth thin-film transistor T9, and a tenth thin-film transistor T10.

[0151] like Figure 19 As shown, the pixel driving circuit also includes an energy storage capacitor Cst. In this embodiment, the energy storage capacitor Cst is mainly used to store charge. When the pixel driving circuit receives a driving signal from the controller, the energy storage capacitor Cst charges and stores the corresponding amount of charge. Furthermore, the energy storage capacitor Cst retains its charge even after the driving signal disappears, thus continuously supplying the sub-pixels (i.e., the light-emitting elements OLED1 and OLED2) with the required current. This characteristic ensures stable brightness of the displayed image and avoids flickering or brightness fluctuations.

[0152] In addition, VDD is the power supply voltage and VSS is the ground voltage; OLED1 is the display sub-pixel 6 in this embodiment and OLED2 is the privacy sub-pixel 7 in this embodiment. EM1, EM2, and EM3 are all light emission control signal lines, which can control the corresponding thin-film transistors to turn on. Re is a reset signal line, configured to provide a reset signal to the circuit. Vinit1 is a first initialization signal line, configured to provide a first initialization voltage signal to the circuit, and Vinit2 is a second initialization signal line, configured to provide a second initialization voltage signal to the circuit. Data is a data voltage line, configured to provide a data voltage to the circuit. Gate1 is a first scan signal line, configured to provide a first scan signal to the circuit; Gate2 is a second scan signal line, configured to provide a second scan signal to the circuit.

[0153] The pixel driving circuit 20 can be obtained by improving an existing 7T1C pixel driving circuit, in which T7, T9, and T10 are added. T3 and T10 in the pixel driving circuit 20 are equivalent to the first and second switching transistors mentioned above.

[0154] Figure 20 This application provides a schematic diagram illustrating the positional relationship between an optical element, a light-shielding layer, and a privacy sub-pixel, as shown in the embodiments of this application. Figure 2 and Figure 20 As shown, in this embodiment of the application, the display panel further includes a light-collecting layer 10, which is disposed on the side of the light-shielding layer 9 away from the substrate 1. Further, as... Figure 2 As shown, a second adhesive layer 62 is also provided between the light-collecting layer 10 and the light-shielding layer 9. The material of the second adhesive layer 62 can be, for example, optical adhesive.

[0155] The light-collecting layer 10 includes an optical element 100 corresponding to the privacy pixel 7, and the orthographic projection of the privacy pixel 7 on the substrate 1 falls within the orthographic projection of the corresponding optical element 100 on the substrate 1.

[0156] Optionally, the optical element 100 is a lens. The lens can be made of high-refractive-index OC adhesive, which is mainly used to focus the light emitted by the privacy pixel 7, thereby improving the overall light output of the privacy pixel 7 and thus extending the lifespan of the device.

[0157] For example, such as Figure 2 As shown in the embodiments of this application, the lens shape is hemispherical, and the height of the lens ranges from [5μm, 20μm]. For example, the height of the lens in the embodiments of this application can be 5μm, 8μm, 10μm, 12μm, 15μm, 18μm, or 20μm.

[0158] Of course, in other embodiments, the lens shape can also be set to a semi-cylindrical shape or other curved surface shape according to user needs, which will not be elaborated here.

[0159] In addition, such as Figure 2 and Figure 20 As shown in the embodiments of this application, the diameters D of the multiple lenses disposed on the multiple privacy pixels 7 may be equal or unequal.

[0160] Furthermore, the orthogonal projection size of the lens on the substrate 1 is larger than the orthogonal projection size of the privacy pixel 7 on the substrate 1. In this embodiment, the orthogonal projection size of the lens on the substrate 1 is 1.1 to 1.5 times the orthogonal projection size of the privacy pixel 7 on the substrate 1.

[0161] like Figure 20As shown in (a) and (b), the diameter D of the lens is smaller than the opening size of the light-transmitting port V in the light-shielding layer 9.

[0162] Figure 21 This is a schematic diagram illustrating the positional relationship between a light-shielding layer, a display sub-pixel, and a privacy sub-pixel, provided in an embodiment of this application. Figure 21 As shown in the embodiment of this application, the orthographic projection of the privacy pixel 7 on the substrate 1 is a rectangle. The shortest distance L3 from the side of the rectangle to the orthographic projection of the light-shielding part 9a on the substrate 1 can be equal or unequal. The distance in different directions can be adjusted according to privacy needs and optical performance requirements. This embodiment of the application does not impose specific limitations.

[0163] The shortest distance L2 from the edge contour of the orthographic projection of the sub-pixel 6 onto the substrate 1 to the edge contour of the orthographic projection of the nearest light-shielding part onto the substrate 1 is 0.1 to 3 times the size of the privacy sub-pixel in the X direction.

[0164] This application also provides a display device, including the display panel mentioned in any of the above embodiments. The display device can be, for example, any product with a display function such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or in-vehicle device.

[0165] Figure 22 A schematic diagram illustrating an application scenario of a display device with display and privacy switching functions, provided for related technologies, such as... Figure 22 As shown in Figure (a), the display device provided in this embodiment can be used as a vehicle-mounted terminal display device. When a user uses the vehicle-mounted terminal display device, the driver and passenger display devices do not interfere with each other, thereby protecting driving safety. Figure 22 As shown in Figures (b) and (c), the display device provided in this application embodiment can also be used in a handheld terminal display device. When a user uses a handheld terminal display device to process private information, it can protect the user's privacy and reduce the risk of user information leakage.

[0166] Other essential components of the display device are those which should be understood by those skilled in the art, and will not be described in detail here, nor should they be construed as limiting the present disclosure.

[0167] For example, the light-emitting device is an OLED. The display device provided in this embodiment is mainly used in vehicle display equipment. When the vehicle is in driving mode, the display panel activates the anti-peeping display mode to reduce visual interference to the driver and improve concentration while driving. When the vehicle is parked, the display panel can switch to the shared display mode so that the driver can obtain the display information emitted by the display panel in a timely manner.

[0168] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A display panel, characterized in that, include: Substrate; Adjacent first pixel region and second pixel region are provided on the substrate. The first pixel region includes a plurality of independently configured sub-pixels, and the second pixel region includes a plurality of independently configured sub-pixels. A portion of the sub-pixels within the adjacent first pixel region and the second pixel region are used to form a display pixel, and the remaining sub-pixels within the adjacent first pixel region and the second pixel region are used to form a privacy pixel. When the display panel is in shared display mode, the display pixels and the privacy pixels emit light, or the display pixels emit light; when the display panel is in privacy display mode, the privacy pixels emit light.

2. The display panel according to claim 1, characterized in that, The first pixel region and the second pixel region respectively include a display sub-pixel and a privacy sub-pixel; Alternatively, the first pixel region may include a display sub-pixel and a privacy sub-pixel, and the second pixel region may include a display sub-pixel and a privacy sub-pixel.

3. The display panel according to claim 2, characterized in that, The first pixel region and the second pixel region are adjacent in the row direction of the substrate; or, The first pixel region and the second pixel region are adjacent in the column direction of the substrate; or, The first pixel region and the second pixel region are adjacent in both the row and column directions of the substrate.

4. The display panel according to claim 2, characterized in that, The display sub-pixels and the privacy sub-pixels of the same color may have the same or different sizes.

5. The display panel according to claim 2, characterized in that, The arrangement of multiple sub-pixels in the first pixel region may be the same as or different from the arrangement of multiple sub-pixels in the second pixel region.

6. The display panel according to claim 2, characterized in that, The privacy pixel includes at least two distributed privacy pixel units; The display panel also includes: A light-shielding layer is disposed on the side of the privacy pixel facing away from the substrate. The light-shielding layer includes light-shielding units that are disposed one-to-one with the privacy pixel. Each light-shielding unit includes a light-transmitting opening and a light-shielding part. The orthogonal projection of the light-transmitting opening on the substrate covers the orthogonal projection of the privacy pixel unit on the substrate.

7. The display panel according to claim 6, characterized in that, In each privacy screen sub-pixel, the number of privacy screen sub-pixel units arranged in the row direction ranges from 1 to 10, and / or the number of privacy screen sub-pixel units arranged in the column direction ranges from 1 to 10.

8. The display panel according to claim 6, characterized in that, The privacy pixel units are staggered in the row direction, and / or the privacy pixel units are staggered in the column direction.

9. The display panel according to claim 6, characterized in that, The privacy-protecting sub-pixel unit and the display sub-pixel may have the same or different shapes; or... The at least one display subpixel includes at least two display subpixel units, and the privacy subpixel unit and the display subpixel unit may be the same or different.

10. A display device, characterized in that, Includes the display panel described in any one of claims 1-9.

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