Display panel and display device

Abstract

The utility model discloses a display panel and a display device, and belongs to the technical field of display. The display panel comprises: a substrate; a first pixel area and a second pixel area which are adjacent to each other are arranged on the substrate, the first pixel area comprises a plurality of sub-pixels which are independently arranged, and the second pixel area comprises a plurality of sub-pixels which are independently arranged; partial sub-pixels in the adjacent first pixel region and second pixel region are used for forming display pixels, and the rest sub-pixels in the adjacent first pixel region and second pixel region are used for forming peep-proof pixels; when the display panel is in a shared display mode, the display pixels and the peep-proof pixels emit light, or the display pixels emit light; when the display panel is in a peep-proof display mode, the peep-proof pixels emit light. According to the technical scheme, the pixel design freedom degree of the display panel with the display and peep-proof switchable functions can be improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of display, and particularly relates to a display panel and a display device. BACKGROUND

[0002] At present, the application of OLED (Organic Light Emitting Diode) display panels is more and more extensive. At the same time, users have put forward new demands for the functions of display panels. For handheld terminal display panels, users hope to protect privacy and reduce the risk of information leakage when using handheld terminal display panels to process private data; for vehicle terminal display panels, users hope to realize mutual non-interference of the main and auxiliary driving display panels, so as to protect the safety of driving. SUMMARY

[0003] The present application provides a display panel and a display device, which are configured by partitioning display pixels and privacy protection pixels, so as to improve the pixel design freedom of the display panel with display and privacy protection switchable.

[0004] In a first aspect, the present application provides a display panel, comprising:

[0005] a substrate substrate;

[0006] a first pixel area and a second pixel area adjacent to each other are arranged 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;

[0007] Part of the sub-pixels in the first pixel area and the second pixel area are used to constitute display pixels, and the remaining sub-pixels in the first pixel area and the second pixel area are used to constitute privacy protection pixels;

[0008] When the display panel is in a shared display mode, the display pixels and the privacy protection pixels emit light, or the display pixels emit light; when the display panel is in a privacy protection display mode, the privacy protection pixels emit light.

[0009] In some embodiments, the first pixel area and the second pixel area each comprise display sub-pixels and privacy protection sub-pixels;

[0010] Alternatively, the first pixel area comprises display sub-pixels and privacy protection sub-pixels, and the second pixel area comprises display sub-pixels and privacy protection sub-pixels.

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

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

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

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

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

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

[0017] The display panel further includes:

[0018] The light shielding layer is disposed on the side of the privacy sub-pixel away from the substrate, and includes a light shielding unit corresponding to each privacy sub-pixel. The light shielding unit includes a light transmission port and a light shielding portion. The orthogonal projection of the light transmission port on the substrate covers the orthogonal projection of the privacy sub-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 privacy sub-pixel units are staggered in the row direction, and / or the privacy sub-pixel units are staggered in the column direction.

[0021] In some embodiments, the privacy sub-pixel units and the display sub-pixels are of the same shape or different shapes; or,

[0022] The at least one display sub-pixel includes at least two display sub-pixel units. The privacy sub-pixel units and the display sub-pixel units are the same or different.

[0023] In another aspect, the present application provides a display device including the display panel mentioned in any of the above embodiments.

[0024] In the embodiments of the present application, the substrate substrate is provided with adjacent first pixel area and second pixel area, the first pixel area includes a plurality of independently arranged sub-pixels, and the second pixel area includes a plurality of independently arranged sub-pixels; part of the sub-pixels in the first pixel area and the second pixel area are used to constitute display pixels, and the remaining sub-pixels in the first pixel area and the second pixel area are used to constitute the anti-peep pixels. Since the display sub-pixels and the anti-peep sub-pixels are independently arranged, the distance requirement between the display sub-pixels and the anti-peep sub-pixels can be easily met, the arrangement mode of each sub-pixel can be arbitrarily set, and the space utilization in the display panel can be effectively improved, that is, the pixel aperture ratio in the display panel can be as large as possible, so that the design freedom of the display sub-pixels and the anti-peep sub-pixels in the display panel is improved. In addition, from the process point of view, the display sub-pixels and the anti-peep sub-pixels are arranged in different areas, which can reduce the process difficulty and improve the production yield of the display panel. BRIEF DESCRIPTION OF DRAWINGS

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

[0026] Figure 1 A schematic diagram of the arrangement of part of the pixels of a display panel provided by the related art;

[0027] Figure 2 A schematic diagram of the cross section of a display panel provided by the embodiments of the present application;

[0028] Figure 3 A schematic diagram of the structure of part of the pixel area of a display panel provided by the embodiments of the present application;

[0029] Figure 4A 、 Figure 4B and Figure 4C A schematic diagram of the pixel area arrangement of the first mode of the embodiments of the present application;

[0030] Figure 5A and Figure 5B A schematic diagram of the pixel area arrangement of the second mode of the embodiments of the present application;

[0031] Figure 6A 、 Figure 6B and Figure 6C A schematic diagram of the pixel area arrangement of the third mode of the embodiments of the present application;

[0032] Figure 7 A schematic diagram of the shared area and the anti-peep area provided by the embodiments of the present application;

[0033] Figure 8A A schematic diagram of the specific pixel arrangement of a display panel provided by the embodiments of the present application;

[0034] Figure 8B Another specific pixel arrangement diagram of a display panel provided by an embodiment of the present application is shown in FIG. 2B.

[0035] Figure 9A Another specific pixel arrangement diagram of a display panel provided by an embodiment of the present application is shown in FIG. 2B.

[0036] Figure 9B Another specific pixel arrangement diagram of a display panel provided by an embodiment of the present application is shown in FIG. 2B.

[0037] Figure 10 A front projection diagram of a peep-proof sub-pixel and a light shielding layer on a substrate provided by an embodiment of the present application is shown in FIG. 3B.

[0038] Figure 11 A size diagram of a display pixel provided by an embodiment of the present application is shown in FIG. 4B.

[0039] Figure 12 A size diagram of a peep-proof pixel provided by an embodiment of the present application is shown in FIG. 5B.

[0040] Figure 13 A structure diagram of a mask provided by an embodiment of the present application is shown in FIG. 6B.

[0041] Figure 14 Another arrangement diagram of a sub-pixel provided by an embodiment of the present application is shown in FIG. 7B.

[0042] Figure 15 Another structure diagram of a mask provided by an embodiment of the present application is shown in FIG. 8B.

[0043] Figures 15A to 15F Several different pixel arrangement diagrams provided by an embodiment of the present application are shown in FIG. 9B.

[0044] Figure 16 Another pixel arrangement diagram provided by an embodiment of the present application is shown in FIG. 10B.

[0045] Figure 17 Another pixel arrangement diagram provided by an embodiment of the present application is shown in FIG. 10B.

[0046] Figure 18A A process diagram of a mask opening and evaporation provided by an embodiment of the present application is shown in FIG. 11B.

[0047] Figure 18B A pixel arrangement diagram with a part of a chamfer provided by an embodiment of the present application is shown in FIG. 12B.

[0048] Figure 19 A circuit diagram of a pixel driving circuit provided by an embodiment of the present application is shown in FIG. 13B.

[0049] Figure 20A schematic diagram of the positional relationship between the optical element, the light shielding layer, and the anti-peep sub-pixel provided for an embodiment of the present application is shown in FIG. 1.

[0050] Figure 21 A schematic diagram of the positional relationship between the light shielding layer, the display sub-pixel, and the anti-peep sub-pixel provided for an embodiment of the present application is shown in FIG. 2.

[0051] Figure 22 An application scenario diagram of a display device with display and anti-peep switching functions provided for the related art is shown in FIG. 3. DETAILED DESCRIPTION

[0052] The technical solutions in some embodiments of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments provided by the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0053] Unless otherwise required by the context, the term "comprises" is to be construed as an open, inclusive meaning, i.e. as "including, but not limited to".

[0054] Hereinafter, the terms "first" and "second" are used only for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise stated.

[0055] In describing some embodiments, the term "connected" and its conjugations can be used. The term "connected" should be interpreted broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrated; can be directly connected, or indirectly connected through an intermediate medium. For example, in describing some embodiments, the term "connected" can 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 inclusiveness, because the process, step, calculation or other action "based on" one or more stated conditions or values can be based on additional conditions or values beyond those stated in practice.

[0057] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or there can be an intermediate layer between the layer or element and the other layer or substrate.

[0058] Exemplary embodiments are described herein with reference to cross-sectional illustrations that are idealized exemplary illustrations. In the drawings, the thickness of layers and regions are exaggerated for clarity. Accordingly, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and / or tolerances, are to be expected. Thus, the exemplary embodiments should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result from, for example, manufacturing. The regions illustrated in the drawings are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of the exemplary embodiments.

[0059] Examples of the embodiments are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements or elements with same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and should not be construed as limiting the present application.

[0060] At present, the application of OLED (Organic Light Emitting Diode) display panel is more and more extensive. At the same time, the user also puts forward new demands for the function of the display panel. For example, for the handheld terminal display panel, the user hopes to protect privacy and reduce the risk of information leakage when using the handheld terminal display panel to handle private data. For example, for the vehicle terminal display panel, the user hopes to realize the mutual non-interference of the main and auxiliary driving display panels, so as to protect the safety of driving. Based on the above functions, the user also hopes that the privacy protection function of the display panel has flexibility.

[0061] In related technology 1, in order to meet the user's demand for the privacy protection of the display panel, the privacy protection film is attached to ensure the privacy of the user. However, this privacy protection technology cannot realize the mutual switching between the privacy protection mode and the display mode, and after attaching the privacy protection film, the light transmittance is low, which has a serious impact on the brightness of the display panel. For example, when the user is in an independent space, at this time, there is no need for privacy protection, but the display panel cannot be switched to a large viewing angle display, so it can be seen that the flexibility and display quality of the display panel by attaching the privacy protection film for privacy protection are low.

[0062] In related technology 2, as shown in Figure 1 , a part of the pixel arrangement diagram of the display panel provided by the related technology is shown. Figure 1

[0063] ​The display panel can realize the display mode and the anti-peep mode switchable function of the display panel by setting the display sub-pixel and the anti-peep sub-pixel in one sub-pixel unit at the same time, i.e., setting the corresponding anti-peep sub-pixel in the periphery of the display sub-pixel, for example, the red sub-pixel unit includes the red display sub-pixel R1 and the red anti-peep sub-pixel R2, the green sub-pixel unit includes the green display sub-pixel G1 and the green anti-peep sub-pixel G2, and the blue sub-pixel unit includes the blue display sub-pixel B1 and the blue anti-peep sub-pixel B2. That is, in the display mode, the user can clearly observe the display content on the display panel in a large angle range; and in the anti-peep mode, the user can only observe the display content on the display panel in a small angle range.

[0064] However, in this setting mode, in order to meet the actual process requirements, the design of the display sub-pixel and the anti-peep sub-pixel is limited, and many factors need to be considered, such as the spacing requirement between the display sub-pixel and the anti-peep sub-pixel, the arrangement mode of the display sub-pixel and the anti-peep sub-pixel, the aperture ratio of the display sub-pixel and the anti-peep sub-pixel, and the like. Therefore, in the related art, the display panel with the display and anti-peep switchable function has low design freedom.

[0065] In addition, in the actual production of the display panel, due to the requirement and limitation of the etching process, when the anode of the conventional display sub-pixel and the anti-peep sub-pixel is independently designed, the anode etching residue problem is prone to occur between the adjacent display sub-pixel and the anti-peep sub-pixel, and therefore, it is not conducive to the high yield production of the display panel with the switchable display and anti-peep function.

[0066] In the related art, the display effect of the display panel with the display and anti-peep switchable function is prone to have chroma deviation. Of course, the spacing between the display sub-pixel and the anti-peep sub-pixel in the sub-pixel unit is difficult to meet the higher design requirement, and also limits the practical application of the display panel with the display and anti-peep switchable function.

[0067] To solve at least one of the above problems, the present application provides a display panel.

[0068] Figure 2 A cross-sectional schematic view of a display panel provided by an embodiment of the present application is shown in Figure 3 A pixel arrangement schematic view of a display panel provided by an embodiment of the present application is shown in

[0069] As Figure 2 shown, the display panel includes a substrate 1, and the anti-peep pixel 5 and the display pixel 4 can be arranged on the substrate 1 to realize the display panel with the display and anti-peep switchable function.

[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] For the first case, it can be that the first pixel area 2 and the second pixel area 3 respectively include display sub-pixels 6 and privacy sub-pixels 7, that is, the first pixel area 2 includes display sub-pixels 6, and the second pixel area 3 includes privacy sub-pixels 7, at this time, the first pixel area 2 also constitutes a display pixel 4, and the second pixel area 3 also constitutes a privacy pixel 5.

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

[0077] For the second case, it can be that the first pixel area 2 and the second pixel area 3 both include display sub-pixels 6 and privacy sub-pixels 7, at this time, for example, in the case of each pixel including red, green and blue three sub-pixels, the privacy pixel 5 and the display pixel 4 need a total of 6 sub-pixels, at this time, the first pixel area 2 can include three sub-pixels, and the second pixel area 3 can include three sub-pixels, for example Figure 5A and Figure 5B , wherein the first pixel area 2 includes one display sub-pixel 6 and two privacy sub-pixels 7, and the second pixel area 3 includes two display sub-pixels 6 and one privacy sub-pixel 7, which is equivalent to that two pixel areas respectively select one sub-pixel to exchange positions.

[0078] In the embodiments of the present application, adjacent refers to being close to each other in position, for example, can include being adjacent in the row direction, or being adjacent in the column direction, etc., as shown in the above Figure 4A , wherein the first pixel area 2 and the second pixel area 3 are adjacent in the row direction of the substrate 1; or, as shown in the above Figure 4B , the first pixel area 2 and the second pixel area 3 are adjacent in the column direction of the substrate 1; or, as shown in the above Figure 4C and Figure 5A , the first pixel area 2 and the second pixel area 3 are adjacent in both the row direction and the column direction of the substrate 1.

[0079] In some embodiments, the overall size of the first pixel area 2 and the second pixel area 3 can be the same or different. For example Figure 6A , Figure 6B and Figure 6C , wherein the size of the first pixel area 2 can be set to be greater than the size of the second pixel area 3; in particular Figure 6CAs shown, for the case that the first pixel region 2 and the second pixel region 3 in the above embodiment are adjacent in the row direction and the column direction of the substrate 1, the second pixel region 2 can surround the second pixel region 3, and the shared regions at the periphery of the same privacy region are in transition to each other.

[0080] In the embodiment of the present application, the sizes of the display sub-pixels 6 and the privacy sub-pixels 7 of the same color can be set to be the same or different, and when the first pixel region 2 and the second pixel region 3 respectively include the display sub-pixels 6 and the privacy sub-pixels 7, if the sizes are set to be the same, the overall sizes of the first pixel region 2 and the second pixel region 3 will also be the same, and if the sizes are set to be different, the overall sizes 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 region and a privacy region provided in the embodiment of the present application is shown in FIG. 7a and FIG. 7b. Figure 7 As shown in FIG. 7a, the length of the shared region is GX, and the width is GY. Figure 7 As shown in FIG. 7b, the length of the privacy region is PX, and the width is PY. GX, GY, PX, and PY can be the same or different.

[0082] On the display panel provided in the embodiment of the present application, the ratio of the sum of the light emitting areas of the display pixels 4 to the light emitting areas of the privacy pixels 5 is n, and n takes any value in the range of 0.3-3. By adjusting the ratio of the sum of the light emitting areas of the display pixels 4 to the light emitting areas of the privacy pixels 5, the privacy effect of the display panel can be accurately adjusted.

[0083] In addition, due to the plurality of sub-pixels P included in the first pixel region 2 and the second pixel region 3, the arrangement of the sub-pixels P in each pixel region can be the same or different. For example, in the case of including three sub-pixels P, the arrangement of the three sub-pixels P in the first pixel region can be the same as 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 taken as an example to be described, which includes red, green, and blue sub-pixels. Figure 8A A specific pixel arrangement schematic diagram of a display panel provided in the embodiment of the present application is shown in FIG. 8a and FIG. 8b. Figure 8B Another specific pixel arrangement schematic diagram of a display panel provided in the embodiment of the present application is shown in FIG. 9a and FIG. 9b. 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) of the display panel, the display sub-pixel 6 and the anti-peep sub-pixel 7 are independently arranged in different pixel regions, and the different pixel regions can be adjacent in the row direction, adjacent in the column direction, or adjacent in both the row direction and the column direction. This arrangement can reduce the process difficulty and ensure the anti-peep effect, while in Figure 9B In (D), (E) and (F) of the display panel, each pixel region includes the display sub-pixel 6 and the anti-peep sub-pixel 7, and the different pixel regions can be adjacent in the row direction, adjacent in the column direction, or adjacent in both the row direction and the column direction. This arrangement can realize better sharing of the display sub-pixel 6 and the anti-peep sub-pixel 7, and ensure good display effect.

[0096] Further, as shown in Figure 2 The display panel in the embodiment of the present application further includes a pixel definition layer PDL, and the pixel definition layer PDL is further provided with a plurality of pixel openings. The display sub-pixel 6 and the anti-peep sub-pixel 7 are located in one pixel opening respectively. The size and shape of each pixel opening are limited, so that the sizes of the display sub-pixel 6 and the anti-peep sub-pixel 7 are the same or different. In addition, for each pixel region, for example, the first pixel region 2 and the second pixel region 3, the shapes of the three sub-pixels in the first pixel region 2 can be the same or different, or the shapes of the three sub-pixels in the second pixel region 3 can be the same or different.

[0097] In some embodiments, as shown in Figure 2 On the substrate 1 of the display panel, a buffer layer Buffer, 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, an anode Anode pattern, a pixel definition layer PDL, a light shielding layer 9, an encapsulation layer TFE and other structures are sequentially formed on the planarization layer PLN.

[0098] In one example, the encapsulation layer TFE includes an inorganic film layer for blocking water and oxygen, and an organic layer for stress release and planarization. The inorganic film layer is prepared by chemical vapor deposition or atomic layer deposition, and the material of the inorganic film layer can be silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide, titanium oxide, etc. The organic layer is prepared by inkjet printing, screen printing, dispensing, etc.

[0099] Further, the organic light-emitting layer 201 and the cathode Cathode are formed on the back plate by a vacuum evaporation process. In some embodiments, the organic light-emitting layer 201 includes a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, etc.

[0100] In the embodiment of the present application, Figure 10A normal projection diagram of a privacy sub-pixel and a light shielding layer on a substrate is provided in the embodiments of the present application. For example Figure 2 and Figure 10 As shown in the figure, for a privacy sub-pixel 7 on a display panel, the privacy sub-pixel 7 can be implemented by setting a light shielding layer 9 on the display panel. The light shielding layer 9 limits the outgoing light of the privacy sub-pixel 7, thereby limiting the visible range of the privacy sub-pixel 7 within a certain area. In order to better limit the visible range, each privacy sub-pixel 7 can be divided into at least two privacy sub-pixel units, and the light emitting area of each privacy sub-pixel unit is reduced, thereby more easily achieving the privacy function. In the embodiments of the present application, for the case of setting at least two privacy sub-pixel units, the light shielding layer 9 is further set to include a light shielding unit corresponding to each privacy sub-pixel 7.

[0101] For example Figure 10 As shown in the figure, for the case of a privacy pixel including three privacy sub-pixels 7, i.e., a red privacy sub-pixel, a green privacy sub-pixel, and a blue privacy sub-pixel, three light shielding units are set. Each privacy sub-pixel can further include a privacy sub-pixel unit, such as a red privacy sub-pixel unit r2, a green privacy sub-pixel unit g 2， a blue privacy sub-pixel unit b2. The light shielding unit includes a light transmission port V and a light shielding part 9a forming the light transmission port V. The normal projection of the light shielding part 9a on the substrate 1 covers the normal projection of the corresponding privacy sub-pixel unit on the substrate 1. In this way, for any privacy sub-pixel unit, the size of the light shielding part 9a in each direction can be flexibly adjusted to adjust the light emitting angle of the privacy sub-pixel unit in each direction, thereby achieving a good privacy effect and meeting the user's use requirements in different application scenarios.

[0102] Optionally, the material of the light shielding part 9a in the light shielding layer 9 can be a metal film of chromium or black resin, mainly for absorbing outgoing light and controlling the light emitting angle of the light emitting area.

[0103] Further, the light shielding layer 9 can include K layers, and K is any integer in the range of 1-5. The thickness of each layer of the light shielding layer 9 is in the range of [0.8㎛, 5㎛], for example, the thickness of each layer of the light shielding layer 9 can be 0.8㎛, 1㎛, 1.2㎛, 1.5㎛, 2㎛, 2.5㎛, 3㎛, 3.5㎛, 4㎛, 4.5㎛, or 5㎛.

[0104] By adjusting the thickness of the light shielding layer 9 of different layers, the present application can achieve the purpose of improving the effect of shielding light at different angles.

[0105] As shown in the figure Figure 2 In the embodiments of the present application, the normal projection of the light shielding part in the light shielding layer 9 of different layers on the substrate 1 can overlap, and K=2.

[0106] Optionally, the K layers of light-shielding layer 9 are stacked in a direction away from the substrate 1, and a first adhesive layer 61 is arranged between two adjacent layers, and the material of the first adhesive layer 61 can be, for example, optical adhesive.

[0107] In some embodiments, still referring to the above-mentioned as shown in 10, the edge of the red privacy sub-pixel unit r2 is r 2a and r 2b distance from the light-shielding layer 9 in the X and Y directions, respectively. 2a and g 2b The edge of the green privacy sub-pixel unit g2 is g 2a and g 2b distance from the light-shielding layer 9 in the X and Y directions, respectively.

[0108] Any two of r 2a、 g 2a and b 2a may be equal or unequal; any two of r 2b g 2b and b 2b may be equal or unequal.

[0109] Of course, in the embodiments of the present application, the edge of the red privacy sub-pixel unit r2, the green privacy sub-pixel unit g2, and the blue privacy sub-pixel unit b2 in the orthographic projection on the substrate can be equal or unequal in distance from the light-shielding layer 9 in the X and Y directions.

[0110] Figure 11 A size schematic diagram of a display pixel provided by the embodiments of the present application is shown in Figure 12 A size schematic diagram of a privacy pixel provided by the embodiments of the present application is shown in Figure 11 and Figure 12 As shown in Figure 8A , one pixel area is provided in each of the two, and the arrangement of each sub-pixel and the size of the sub-pixels of the same color are the same in each pixel area, and the difference is that in the privacy pixel, each privacy sub-pixel 7 is further divided into a plurality of privacy sub-pixel units.

[0111] As shown in Figure 11 , r1 is a red display sub-pixel, g1 is a green display sub-pixel, and b1 is a blue display sub-pixel. Wherein, r 1x and r 1y are the length and width of the red display sub-pixel r1, respectively. Similarly, g1 is a green display 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 length and width of 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 12The same color sub-pixels have the same arrangement and shape; and the sizes of the two are the same or different in some embodiments.

[0116] For example, as shown in Figure 11 and Figure 12 , in the embodiments of the present application, the sizes of the same color sub-pixels can be designed to be the same. For example, the length and width of the red display sub-pixels and the red anti-peep sub-pixels are the same; the length and width of the green display sub-pixels and the green anti-peep sub-pixels are the same; and the length and width of the blue display sub-pixels and the blue anti-peep sub-pixels are the same.

[0117] Further, in the embodiments of the present application, when the shapes and sizes of the display sub-pixels 6 and the anti-peep sub-pixels 7 are designed to be the same, the same color display sub-pixels 6 and anti-peep sub-pixels 7 can be deposited by using the same mask, thereby achieving the effects of simplifying the process, improving the production efficiency, reducing the cost, and improving the product quality and consistency.

[0118] Figure 13 A structure diagram of a mask plate provided in the embodiments of the present application is shown in Figure 13 , which includes three mask plates, namely FMM1, FMM2, and FMM3. The mask plate FMM1 is provided with a plurality of sub-pixel masks F1, the mask plate FMM2 is provided with a plurality of sub-pixel masks F2, and the mask plate FMM3 is provided with a plurality of sub-pixel masks F3, which can correspond to red sub-pixels, green sub-pixels, and blue sub-pixels, respectively. Figure 13 The mask plate shown in Figure 11 and Figure 12 can be used to manufacture a display panel with the sub-pixel arrangement shown in .

[0119] In the embodiments of the present application, the sub-pixel arrangement can be adjusted, and correspondingly, the position, shape, and size of the sub-pixel mask openings on the mask plate are adjusted according to the adjusted sub-pixel arrangement, thereby reducing the difficulty of manufacturing the mask plate.

[0120] Figure 14 Another arrangement diagram of sub-pixels provided in the embodiments of the present application is shown in Figure 11 and Figure 14 (14a), in which the shape and size of the blue display sub-pixel b1 are changed; and Figure 12 and Figure 14 (14b), in which the shape and size of the blue anti-peep sub-pixel b2 are changed. For the sub-pixel arrangement shown in Figure 14 , a mask plate structure as shown in Figure 15 can be designed, and the mask plate under this structure is compared with Figure 13The mask plate in the application has mask openings that are discontinuous, higher mask strength, and higher durability.

[0121] Further, the application can make the overall structure of the mask plate simpler by adjusting the position, shape and size of the sub-pixel mask openings. For example, the number of unnecessary sub-pixel mask openings can be reduced, the position, shape and size of the sub-pixel mask openings can be optimized, and the like. These adjustment methods all help to reduce the difficulty and cost of manufacturing the mask plate.

[0122] Still as described above Figure 12 As shown in the drawings, Ax, Bx and Dx are the intervals of the anti-peep sub-pixel units of different colors in the X direction, and Ay, By and Dy are the intervals of the anti-peep sub-pixel units of different colors in the Y direction. The shortest interval between two adjacent anti-peep sub-pixel units is 0.1-5 times the size of the anti-peep sub-pixel unit in the opposite direction.

[0123] In the embodiments of the application, the anti-peep sub-pixel units in each anti-peep sub-pixel 7 can be arranged in multiple rows and multiple columns. Specifically, the number of anti-peep sub-pixel units arranged in the row direction can range from 1 to 10, and / or the number of anti-peep sub-pixel units arranged in the column direction can range from 1 to 10.

[0124] In some embodiments, for the anti-peep sub-pixel units described above, the center of gravity coordinates of the anti-peep sub-pixel units in each column are the same in the X direction, and the center of gravity coordinates of the anti-peep sub-pixel units in each row are the same in the Y direction, as shown in the drawings. Figure 12 and Figure 14 As shown in the drawings, each row of anti-peep sub-pixel units can be arranged in a straight line, and each column of anti-peep sub-pixel units can be arranged in a straight line.

[0125] Figures 15A to 15F The different pixel arrangement diagrams provided by the embodiments of the application are shown in the drawings. The application can meet the optical and life requirements of users for display panels in different scenarios by adjusting the shape and arrangement of display pixels 4 and anti-peep pixels 5. For display pixels 4, r1 is a red display sub-pixel, g1 is a green display sub-pixel, and b1 is a blue display sub-pixel. For anti-peep pixels 5, sub-pixels of corresponding colors are also provided, but each sub-pixel is divided into different anti-peep sub-pixel units. Specifically, r2 is a red anti-peep sub-pixel unit, g2 is a green anti-peep sub-pixel unit, and b2 is a blue anti-peep sub-pixel unit.

[0126] For example, in some embodiments, as shown in the drawings 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 within 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, better meeting the light emission and lifespan requirements of each display panel.

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

[0134] In addition, as shown in the drawings of the above various embodiments, in the anti-peep pixel 5, each row of anti-peep sub-pixel units can be arranged in a straight line, and each column of anti-peep sub-pixel units can be arranged in a straight line. In some cases, according to actual display requirements, the anti-peep sub-pixel units can be arranged in a staggered manner in the row direction, and / or the anti-peep sub-pixel units can be arranged in a staggered manner in the column direction. As shown in Figure 17 As shown in FIG. (17a), (17b), (17c), and (17d) in the drawings, for different arrangements of anti-peep sub-pixels 7, the anti-peep sub-pixel units can be arranged in a straight line in the column direction and staggered in the row direction. Similarly, the anti-peep sub-pixel units can also be staggered in the column direction, or staggered in both directions, which can be achieved.

[0135] In some embodiments, due to the influence of the mask plate itself, the evaporation opening of the mask plate is not a strict rectangle, but a rounded rectangle. Compared with the evaporation opening of the standard rectangle, the distance from the rounded corner of the evaporation opening to the pixel opening on the pixel definition layer PDL is closer.

[0136] Therefore, in the evaporation process of the light-emitting material, it is likely that color mixing will occur due to the alignment accuracy error of the mask plate, or there is a risk of partial evaporation material missing in the partial pixel opening, which can easily cause electrical failure. In the embodiments of the present application, a rounded or flat chamfer is provided at the corner of the display sub-pixel 6 and / or the anti-peep sub-pixel 7 closest to each vertex of the sub-pixel.

[0137] FIG. 18(A) is a process diagram of a mask opening and evaporation provided by an embodiment of the present application. As shown in FIG. 18(A), when the mask plate FMM is manufactured by etching process, due to the etching characteristics, the corners of the designed opening of the mask plate FMM are not right angles in the ideal state but rounded corners. In this state, the smaller the distance T between the designed opening and the corners of the mask plate FMM, the greater the risk of evaporation material missing at the corners of the mask plate FMM.

[0138] Therefore, when the corners of the display sub-pixel and / or the anti-peep sub-pixel unit are right angles, the display sub-pixel and / or the anti-peep sub-pixel unit can be designed with single-side chamfering or double-side chamfering to reduce the evaporation risk.

[0139] For example, FIG. 18(B) is a schematic diagram of a partial pixel arrangement with chamfered corners, according to an embodiment of the present application. As shown in FIG. 18(B), the orthographic projection of the sub-pixels on the substrate 1 includes at least four straight edges, and the extensions of the four straight edges intersect to form a virtual frame, which includes four vertices.

[0140] As shown in (18a) and (18b) in FIG. 18(B), taking the shape of each privacy sub-pixel unit in the display sub-pixel 6 and the privacy pixel 5 in the display pixel 4 as an example, the display pixel 4 includes four vertices, the display sub-pixel 6 includes a plurality of first corners, and the privacy sub-pixel unit includes a plurality of second corners. For any vertex, when the sub-pixel closest to the vertex is the display sub-pixel 6 and the privacy sub-pixel 7, the first corner closest to the vertex among the plurality of first corners of the display sub-pixel 6 is set as a rounded or flat chamfered corner, and the second corner closest to the vertex among the plurality of second corners of the privacy sub-pixel unit closest to the vertex is set as a rounded or flat chamfered corner.

[0141] According to the present application, the sub-pixels are designed with double-sided or single-sided rounded or flat chamfered corners, which not only reduces the risk of evaporation, but also ensures that the aperture ratio of the sub-pixels is not reduced too much. The size of the rounded or flat chamfered corner can be designed according to the actual process capability of the mask.

[0142] In the embodiments of the present application, as shown in FIG. 18(A), the display panel further includes an anode Anode and a cathode Cathode. In the present embodiment, the anodes Anode of all the sub-pixels in the first pixel region 2 and the second pixel region 3 are independently arranged, so that each sub-pixel can be independently controlled. Figure 2

[0143] According to the present application, the anodes Anode of all the sub-pixels are independently arranged, so that each sub-pixel in the display panel, including the display sub-pixel 6 and the privacy sub-pixel 7, can be independently controlled to emit light, thereby more accurately controlling the brightness and color of the pixel, and improving the color accuracy and contrast of the overall display image of the display panel. Such fine control helps to achieve more colorful display and higher image clarity of the display panel.

[0144] Moreover, the independent arrangement of the anodes Anode of the sub-pixels allows individual adjustment of each sub-pixel, so that the display panel can support more complex display effects, such as dynamic range expansion, color gradient, and enhancement of shadow details.

[0145] ​In addition, by independently controlling the anode Anode of the sub-pixel, unnecessary energy consumption can be reduced without affecting the overall brightness of the display panel. For example, when displaying black or dark images, the anode Anode of the specific sub-pixel can be turned off to reduce power consumption. Of course, in the anti-peep display technology of the present application, the independent setting of the anode Anode of all sub-pixels can help to achieve more effective optical design, so that the anti-peep effect of the display panel is more significant, thereby enhancing the privacy protection of the user.

[0146] In the embodiments of the present application, the cathode Cathode of each sub-pixel can be laid in an integral structure. In some embodiments, as shown in the figure, the substrate 1 is also formed with a pixel driving circuit 20, which is one-to-one corresponding to all sub-pixels in the first pixel area 2 and the second pixel area 3. The pixel driving circuit 20 can drive the anode of each sub-pixel to make each sub-pixel emit light. Figure 2

[0147] In the embodiments of the present application, the pixel driving circuit 20 and each sub-pixel establish a one-to-one correspondence, that is, each sub-pixel has a special pixel driving circuit 20 to adjust the voltage or current signal of each sub-pixel according to the received signal of the controller, thereby controlling the state (such as brightness and color) of each sub-pixel, and ensuring that each sub-pixel can be independently and accurately controlled. This setting method not only can improve the display and anti-peep quality of the display panel, but also enhances the reliability and flexibility of the display panel.

[0148] Alternatively, in some other embodiments, the pixel driving circuit 20 can be formed on the substrate 1, and each pixel driving circuit 20 is correspondingly arranged with two sub-pixels of the same color in the first pixel area 2 and the second pixel area 3, which includes the display sub-pixel 6 and the anti-peep sub-pixel 7, that is, a pair of display sub-pixel 6 and anti-peep sub-pixel 7 share a pixel driving circuit 20, thereby saving the number of pixel driving circuits 20 arranged on the display panel, which can on the one hand simplify the number of devices on the display panel, thereby reducing the manufacturing complexity, providing product manufacturing yield, and reducing manufacturing cost, and on the other hand, it can also reduce the occupied space of the pixel driving circuit 20, thereby providing more setting space for the shared area, thereby improving the aperture ratio and display brightness of the display panel.

[0149] ​In the embodiments of the present application, the pixel driving circuit 20 can include a first switch transistor and a second switch transistor, wherein the first switch transistor is used to drive the display sub-pixel in the two sub-pixels of the same color to emit light, the second switch transistor is used to drive the privacy sub-pixel in the two sub-pixels of the same color to emit light, and when the display panel is in the shared display mode, the first switch transistor and the second switch transistor are used to drive the two sub-pixels of the same color to emit light at the same time; when the display panel is in the privacy display mode, the privacy sub-pixel in the two sub-pixels of the same color is driven to emit light, so as to realize the switching of the privacy and display functions.

[0150] Figure 19 A circuit diagram of a pixel driving circuit provided in the embodiments of the present application is shown in FIG. 1, which can include ten thin film transistors. The ten thin film transistors are respectively a first thin film transistor T1, a second 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. Figure 19

[0151] As shown in FIG. 1, the pixel driving circuit further includes an energy storage capacitor Cst. In the embodiments of the present application, the energy storage capacitor Cst is mainly used to store electric charges. When the pixel driving circuit receives a driving signal provided by a controller, the energy storage capacitor Cst will be charged and store a corresponding amount of electric charges. Moreover, the energy storage capacitor Cst can still maintain the electric charges after the driving signal disappears, thereby continuously providing the required current for the sub-pixels (i.e., the light emitting elements OLED1 and OLED2). This feature ensures the stability of the brightness of the display image and avoids flickering or brightness fluctuation. Figure 19 In addition, VDD is a power voltage, VSS is a ground voltage; OLED1 is a display sub-pixel 6 in the embodiments of the present application, and OLED2 is a privacy sub-pixel 7 in the embodiments of the present application. EM1, EM2, and EM3 are all light emitting control signal lines, which can control the corresponding thin film transistors to be turned on. Re is a reset signal line, which is configured to provide a reset signal to the circuit. Vinit1 is a first initialization signal line, which is configured to provide a first initialization voltage signal to the circuit, and Vinit2 is a second initialization signal line, which is configured to provide a second initialization voltage signal to the circuit. Data is a data voltage line, which is configured to provide a data voltage to the circuit. Gate1 is a first scan signal line, which is configured to provide a first scan signal to the circuit; and Gate2 is a second scan signal line, which is configured to provide a second scan signal to the circuit.

[0152]

[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 is hemispherical in shape, and the height of the lens ranges from [5 mm to 20 mm]. For example, the height of the lens in the embodiments of this application can be 5 mm, 8 mm, 10 mm, 12 mm, 15 mm, 18 mm, or 20 mm.

[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 This diagram illustrates an application scenario for a display device with display and privacy switching functions, provided for related technologies.

[0166] like 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.

[0167] 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.

[0168] 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.

[0169] The above descriptions are only specific embodiments of the present application, and the protection scope of the present application is not limited thereto, and any person skilled in the art can think of changes or replacements within the technical scope disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A display panel, characterized by, The display panel comprises: a substrate substrate; a first pixel area and a second pixel area are arranged adjacent to each other 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 adjacent first pixel area and second pixel area are used to constitute display pixels, and the remaining sub-pixels in the adjacent first pixel area and second pixel area are used to constitute 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.

2. The display panel of claim 1, wherein, The first pixel area and the second pixel area respectively comprise display sub-pixels and anti-peep sub-pixels; alternatively, the first pixel area comprises display sub-pixels and anti-peep sub-pixels, and the second pixel area comprises display sub-pixels and anti-peep sub-pixels.

3. The display panel of claim 2, wherein, The first pixel area and the second pixel area are adjacent in the row direction of the substrate substrate; or The first pixel area and the second pixel area are adjacent in the column direction of the substrate substrate; or The first pixel area and the second pixel area are adjacent in both the row direction and the column direction of the substrate substrate.

4. The display panel of claim 2, wherein, The sizes of the display sub-pixels and the anti-peep sub-pixels of the same color are the same or different.

5. The display panel of claim 2, wherein, The arrangement mode of the plurality of sub-pixels in the first pixel area is the same as or different from the arrangement mode of the plurality of sub-pixels in the second pixel area.

6. The display panel of claim 2, wherein, The anti-peep sub-pixel comprises at least two distributed anti-peep sub-pixel units; The display panel further comprises: a light shielding layer arranged on the side of the anti-peep sub-pixel away from the substrate substrate, the light shielding layer comprises a light shielding unit corresponding to each anti-peep sub-pixel, the light shielding unit comprises a light transmission port and a light shielding portion, and the orthogonal projection of the light transmission port on the substrate substrate covers the orthogonal projection of the anti-peep sub-pixel unit on the substrate substrate.

7. The display panel of claim 6, wherein, In each anti-peep sub-pixel, the number of anti-peep sub-pixel units arranged in the row direction ranges from 1 to 10, and / or the number of anti-peep sub-pixel units arranged in the column direction ranges from 1 to 10.

8. The display panel of claim 6, wherein, The anti-peep sub-pixel units are staggered in the row direction, and / or the anti-peep sub-pixel units are staggered in the column direction.

9. The display panel of claim 6, wherein, The shapes of the anti-peep sub-pixel units and the display sub-pixels are the same or different; or The at least one display sub-pixel comprises at least two display sub-pixel units, and the anti-peep sub-pixel units and the display sub-pixel units are the same or different.

10. A display device, characterized by comprising: The display panel comprises any one of claims 1-9.

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