Display panel and display apparatus

Abstract

Disclosed in the present application are a display panel and a display apparatus. The display panel comprises a driving backplane, a pixel-defining layer, a light-emitting layer, a first light-blocking layer, and a black matrix layer. At least part of the first light-shielding layer covers the inner walls of pixel openings and is in contact with the inner walls of the pixel openings. In this way, for large-viewing-angle light emitted from the light-emitting layer in each pixel opening, at least part of the large-viewing-angle light can be blocked by the first light-blocking layer, thereby reducing the possibility of the large-viewing-angle light being emitted from a region corresponding to an adjacent pixel opening, reducing the risk of light leakage from the display panel at large viewing angles, and further improving the anti-peep effect of the display panel.

Description

Display panel and display device

[0001] This disclosure claims priority to Chinese Patent Application No. 202510106495.4, filed on January 22, 2025, entitled “Display Panel and Display Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0003] A display panel is a device used to display images and text.

[0004] In some applications, display panels with privacy features are needed to prevent information leakage or light interference. Currently, display panels incorporate a black matrix layer, which blocks edge light from sub-pixels, thereby reducing the light emission angle of the display panel and achieving a privacy effect.

[0005] However, in the aforementioned display panel, some light rays from wide viewing angles cannot be blocked by the black matrix layer, causing light rays from wide viewing angles to emerge from adjacent sub-pixels, resulting in light leakage and thus poor privacy protection. Summary of the Invention

[0006] This application provides a display panel and a display device. The technical solution is as follows:

[0007] According to one aspect of this application, a display panel is provided, the display panel comprising: a driving backplane, a pixel definition layer, a light-emitting layer, a first light-blocking layer, and a black matrix layer;

[0008] The pixel definition layer is located on one side of the driving backplate, and the pixel definition layer has multiple pixel openings;

[0009] At least a portion of the light-emitting layer is located within the plurality of pixel openings;

[0010] At least a portion of the first light-blocking layer covers the inner wall of each of the pixel openings and is in contact with the inner wall of each of the pixel openings; the first light-blocking layer has a plurality of first light-transmitting holes, the plurality of first light-transmitting holes corresponding to the plurality of pixel openings, and the orthographic projection of the first light-transmitting hole on the driving back plate overlaps with the orthographic projection of the corresponding pixel opening on the driving back plate.

[0011] The black matrix layer is located on the side of the pixel definition layer opposite to the driving backplate. The black matrix layer has a plurality of second light-transmitting holes, which correspond to the plurality of pixel openings. The orthographic projection of the second light-transmitting hole on the driving backplate overlaps with the orthographic projection of the corresponding pixel opening on the driving backplate.

[0012] Optionally, the first light-blocking layer includes: a plurality of separately disposed first light-blocking blocks, each first light-blocking block having at least one first light-transmitting hole, and the first light-blocking block covering the inner wall of at least one of the pixel openings;

[0013] There is a gap between two adjacent first light-blocking blocks.

[0014] Optionally, the first light-blocking block includes: a first portion covering the inner wall of the pixel opening, and a second portion connected to the first portion, wherein the second portion is located on the side of the pixel definition layer opposite to the driving backplate;

[0015] The gap is located between the two second portions of two adjacent first light-blocking blocks.

[0016] Optionally, the first light-blocking layer includes: a plurality of first light-blocking portions, and a second light-blocking portion for connecting the plurality of first light-blocking portions;

[0017] The plurality of first light-blocking parts correspond to the plurality of pixel openings, the first light-blocking parts cover the inner wall of the corresponding pixel openings, and each first light-blocking part has a first light-transmitting hole.

[0018] The second light-blocking part is located on the side of the pixel definition layer opposite to the driving backplate, and the second light-blocking part has multiple auxiliary openings.

[0019] Optionally, the display panel further includes: a support layer and a second light-blocking layer;

[0020] The support layer is located on the side of the pixel definition layer opposite to the driving backplate. The support layer has a plurality of first mesh holes, which correspond to the plurality of pixel openings. The orthographic projection of the first mesh holes on the driving backplate overlaps with the orthographic projection of the corresponding pixel openings on the driving backplate.

[0021] The second light-blocking layer at least partially covers the inner wall of each of the first mesh holes and is in contact with the inner wall of each of the first mesh holes.

[0022] Optionally, the second light-blocking layer also covers the side of the support layer opposite to the drive backplate;

[0023] The orthographic projection of the support layer on the drive back plate is located within the orthographic projection of the second light-blocking layer on the drive back plate.

[0024] Optionally, the display panel further includes: a first inorganic encapsulation layer, the first inorganic encapsulation layer being located between the pixel definition layer and the support layer, and the first inorganic encapsulation layer covering the portion of the light-emitting layer located within the pixel opening.

[0025] Optionally, the side of the support layer closest to the drive backplate is in contact with the first inorganic encapsulation layer, and the refractive index of the support layer is greater than that of the first inorganic encapsulation layer.

[0026] Optionally, the display panel further includes: a first dimming layer and a second dimming layer;

[0027] The first dimming layer is located between the pixel definition layer and the black matrix layer. The first dimming layer has a plurality of dimming holes, which correspond to the plurality of pixel openings. The orthographic projection of the dimming hole on the driving back panel overlaps with the orthographic projection of the corresponding pixel opening on the driving back panel. At least a portion of the second dimming layer is located within the plurality of dimming holes and is in contact with the inner wall of each dimming hole.

[0028] The refractive index of the second dimming layer is greater than that of the first dimming layer.

[0029] Optionally, the display panel further includes: a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer;

[0030] The first inorganic encapsulation layer covers the portion of the light-emitting layer located within the pixel opening; the organic encapsulation layer is located on the side of the first inorganic encapsulation layer opposite to the driving backplate; both the first dimming layer and the second dimming layer are located on the side of the organic encapsulation layer opposite to the driving backplate; the second inorganic encapsulation layer is located on the side of both the first dimming layer and the second dimming layer opposite to the driving backplate.

[0031] Optionally, the display panel further includes: a touch electrode layer; the touch electrode layer has a plurality of second mesh holes, the plurality of second mesh holes corresponding to the plurality of pixel openings, and the orthographic projection of the second mesh holes on the driving back panel overlaps with the orthographic projection of the corresponding pixel openings on the driving back panel;

[0032] The touch electrode layer is located on the side of the second inorganic encapsulation layer opposite to the driving backplate, or the touch electrode layer is located between the organic encapsulation layer and the second inorganic encapsulation layer.

[0033] Optionally, the light-emitting layer includes: effective light-emitting portions distributed in each of the pixel openings;

[0034] The display panel includes: a plurality of sub-pixel regions, at least a portion of the plurality of sub-pixel regions including at least two pixel openings arranged side by side;

[0035] Wherein, at least two of the effective light-emitting portions within the pixel openings in the same sub-pixel region are of the same type.

[0036] Optionally, the display panel further includes: a plurality of first electrode blocks corresponding to the plurality of sub-pixel regions, and a second electrode layer located on the side of the light-emitting layer facing away from the driving backplate; the first electrode blocks are located on the side of the effective light-emitting portion in the corresponding sub-pixel region closer to the driving backplate;

[0037] In this sub-pixel region, at least two of the effective light-emitting portions within the pixel openings are in contact with the corresponding first electrode block.

[0038] Optionally, the display panel further includes: a cover layer and a plurality of microlenses, the microlenses protruding toward a side opposite to the driving backplate;

[0039] The plurality of microlenses are located on the side of the black matrix layer opposite to the driving backplate. The plurality of microlenses correspond to the plurality of pixel openings. The orthographic projection of the microlens on the driving backplate overlaps with the orthographic projection of the corresponding pixel opening on the driving backplate. The cover layer covers the plurality of microlenses and is in contact with the plurality of microlenses.

[0040] The refractive index of the microlens is greater than that of the capping layer.

[0041] On the other hand, a display device is provided, comprising: a power supply component, and a display panel electrically connected to the power supply component, the display panel comprising: any of the above-described display panels. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 is a schematic diagram of the structure of a display panel provided by related technologies;

[0044] Figure 2 is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0045] Figure 3 is a partial top view of another display panel provided in an embodiment of this application;

[0046] Figure 4 is a cross-sectional schematic diagram of the display panel shown in Figure 3 at point A1-A1;

[0047] Figure 5 is a partial top view of a display panel provided in an embodiment of this application;

[0048] Figure 6 is a partial top view of another display panel provided in an embodiment of this application;

[0049] Figure 7 is a partial top view of another display panel provided in an embodiment of this application;

[0050] Figure 8 is a partial top view of another display panel provided in an embodiment of this application;

[0051] Figure 9 is a partial top view of another display panel provided in an embodiment of this application;

[0052] Figure 10 is a schematic diagram of another display panel provided in an embodiment of this application;

[0053] Figure 11 is a schematic diagram of another display panel provided in an embodiment of this application;

[0054] Figure 12 is a schematic diagram of another display panel provided in an embodiment of this application;

[0055] Figure 13 is a schematic diagram of another display panel provided in an embodiment of this application;

[0056] Figure 14 is a schematic diagram of another display panel provided in an embodiment of this application;

[0057] Figure 15 is a schematic diagram of another display panel provided in an embodiment of this application.

[0058] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0060] Please refer to Figure 1, which is a schematic diagram of a display panel structure provided by related technology. The display panel 20 includes: a driving backplane 21, a pixel definition layer 22, a light-emitting layer 23, and a black matrix layer 24. A certain distance exists between the black matrix layer 24 and the light-emitting layer 23. Some wide-viewing-angle light rays (e.g., light ray L1) emitted from the light-emitting layer 23 cannot be blocked by the black matrix layer 24, causing light leakage as these rays escape from adjacent sub-pixel areas. Furthermore, when the distance between two adjacent sub-pixel areas is small, more wide-viewing-angle light rays will escape from the adjacent sub-pixel areas, exacerbating the light leakage problem and resulting in poor privacy protection of the display panel.

[0061] This application provides a display panel. Please refer to FIG2. FIG2 is a schematic diagram of the structure of a display panel provided in this application embodiment. The display panel 10 includes: a driving backplate 11, a pixel definition layer 12, an emissive layer 131, a first light-blocking layer 14, and a black matrix layer 15.

[0062] The display panel 10 provided in this embodiment can be an Organic Light Emitting Diode (OLED) display panel. OLED display panels have many advantages, including self-illumination, low driving voltage, high luminous efficiency, short response time, high clarity and contrast, wide operating temperature range, and the ability to achieve flexible display and large-area full-color display. In other possible implementations, the display panel 10 can also be a Quantum Dot Light Emitting Diode (QLED) display panel, a Mini Light Emitting Diode (Mini LED) display panel, or a Micro Light Emitting Diode (Micro LED) display panel. This embodiment does not limit the specific implementation.

[0063] The driving backplate 11 is used to carry other film layers in the display panel 10. The driving backplate 11 may include a substrate and driving circuitry located on the substrate. For example, the substrate may be a flexible substrate or a rigid substrate.

[0064] The pixel definition layer 12 is located on one side of the driving backplane 11, and the pixel definition layer 12 has multiple pixel openings K1. The multiple pixel openings K1 of the pixel definition layer 12 can be used to divide multiple sub-pixel regions. In this application, a pixel opening K1 refers to an opening that penetrates the pixel definition layer 12, and the opening of the pixel opening K1 facing the driving backplane 11 can be called the lower opening, and the opening of the pixel opening K1 away from the driving backplane 11 can be called the upper opening. Here, the size of the upper opening of the pixel opening K1 is usually larger than the size of the lower opening.

[0065] At least a portion of the light-emitting layer 131 is located within a plurality of pixel openings K1. Here, the light-emitting layer 131 is used to emit a light beam in a direction away from the driving backplate 11. In this embodiment, the display panel 10 further includes a cathode and an anode, with the anode located on the side of the light-emitting layer 131 near the driving backplate 11 and the cathode located on the side of the light-emitting layer 131 away from the driving backplate 11. The anode and cathode are electrically connected to the driving circuit in the driving backplate 11, so that under the control of the driving circuit, the anode and cathode cooperate to drive the light-emitting layer 14 to emit light.

[0066] It should be noted that Figure 2 only shows a portion of the light-emitting layer 131 located within the pixel opening K1, which can be the effective light-emitting part of the light-emitting layer 131. The light-emitting layer 131 may also include another portion located outside the pixel opening K1, but this embodiment does not limit this.

[0067] At least a portion of the first light-blocking layer 14 covers and contacts the inner wall of each pixel opening K1. That is, the first light-blocking layer 14 can completely cover the inner wall of each pixel opening K1, or the first light-blocking layer 14 can only cover a portion of the inner wall of each pixel opening K1.

[0068] The first light-blocking layer 14 has multiple first light-passing holes K2, which correspond to multiple pixel openings K1. The orthographic projection of the first light-passing hole K2 on the driving backplate 11 overlaps with the orthographic projection of the corresponding pixel opening K1 on the driving backplate 11. For example, the orthographic projection of the first light-passing hole K2 on the driving backplate 11 is located within the orthographic projection of the upper opening of the corresponding pixel opening K1 on the driving backplate 11. Here, the first light-blocking layer 14 is used to block a portion of the light rays with a large viewing angle emitted from the light-emitting layer 131, such as light ray L2. Since there is a high probability that light rays with a large viewing angle will hit the inner wall of the pixel opening K1, by setting the first light-blocking layer 14 to cover the inner wall of each pixel opening K1, it can be ensured that more light rays with a large viewing angle can be blocked by the first light-blocking layer 14, thereby reducing the risk of light leakage. The first light-passing holes K2 corresponding to the pixel opening K1 allow light rays with a smaller viewing angle to pass through, avoiding affecting the display function of the display panel 10.

[0069] The black matrix layer 15 is located on the side of the pixel definition layer 12 opposite to the driving backplate 11. The black matrix layer 15 has a plurality of second light-transmitting holes K3, which correspond to a plurality of pixel openings K1. The orthographic projection of the second light-transmitting hole K3 on the driving backplate 11 overlaps with the orthographic projection of the corresponding pixel opening K1 on the driving backplate 11. For example, the orthographic projection of the lower opening of the pixel opening K1 on the driving backplate 11 is located within the orthographic projection of the corresponding second light-transmitting hole K3 on the driving backplate 11. Here, the black matrix layer 15 can absorb a portion of the light emitted from the light-emitting layer 131, such as light L3.

[0070] For example, the material of the black matrix layer 15 may include a black light-absorbing material, or the material of the black matrix layer 15 may include a metal material. For example, in the embodiments of this application, the touch electrode layer may be reused as the black matrix layer 15 to serve as a light-shielding layer.

[0071] In the light emitted from the light-emitting layer 131, light with a narrow viewing angle can be transmitted through the first light-passing hole K2, the pixel opening K1, and the second light-passing hole K3, thus ensuring that the display panel 10 can display the image normally. For light with a wide viewing angle, some light cannot be blocked by the black matrix layer 15. At least some of these light rays can be blocked by the first light-blocking layer 14. In this way, the first light-blocking layer 14 and the black matrix layer 15 work together to reduce the possibility of wide-viewing-angle light emanating from adjacent sub-pixel areas, that is, to reduce light leakage, thereby improving the privacy protection effect.

[0072] In summary, the embodiments of this application provide a display panel in which a first light-blocking layer is provided. At least a portion of the first light-blocking layer covers and contacts the inner wall of each pixel opening. In this way, for the light emitted from the light-emitting layer in the pixel opening, at least a portion of the wide-viewing-angle light can be blocked by the first light-blocking layer, thereby reducing the possibility of wide-viewing-angle light emanating from the area corresponding to adjacent pixel openings and reducing the risk of light leakage of the display panel at wide viewing angles, thus improving the privacy protection effect of the display panel.

[0073] This application embodiment can improve the privacy protection effect by dividing the sub-pixel region. Please refer to Figures 3 and 4. Figure 3 is a partial top view of another display panel provided in this application embodiment, and Figure 4 is a cross-sectional schematic diagram of the display panel provided in Figure 3 at A1-A1. The light-emitting layer 131 includes: an effective light-emitting portion 131a distributed in each pixel opening K1, and the effective light-emitting portion 131a is the part of the light-emitting layer 131 that can be driven to emit light.

[0074] The display panel 10 includes a plurality of sub-pixel regions Q, at least a portion of the sub-pixel regions Q containing at least two pixel openings K1. That is, the light-emitting layer 131 in at least a portion of the sub-pixel regions Q is divided into a plurality of effective light-emitting parts 131a. For example, the light-emitting layer 131 in the sub-pixel regions Q can be divided into a plurality of effective light-emitting parts 131a by a pixel definition layer.

[0075] In one possible implementation, multiple pixel openings K1 in the same sub-pixel region Q are arranged in a strip-like structure, and the multiple pixel openings K1 are arranged side by side. In this way, the black matrix layer 15 has a good blocking effect on light from a wide viewing angle in the arrangement direction of the multiple pixel openings K1, which can achieve a privacy protection effect. However, the embodiments of this application do not limit the shape and arrangement of the pixel openings K1. For example, the shape of the pixel openings K1 can also be circular, and the multiple pixel openings K1 can also be arranged in a staggered manner.

[0076] Among them, the effective light-emitting parts 131a in at least two pixel openings K1 in the same sub-pixel region Q are of the same type, that is, the effective light-emitting parts 131a in the same sub-pixel region Q can emit light of the same color.

[0077] Multiple sub-pixel regions Q can include multiple types of sub-pixel regions Q. The effective light-emitting parts 131a in sub-pixel regions Q of the same type emit light of the same color, while the effective light-emitting parts 131a in sub-pixel regions Q of different types emit light of different colors. For example, the multiple types of sub-pixel regions Q can include a first type of sub-pixel region Q1, a second type of sub-pixel region Q2, and a third type of sub-pixel region Q3. Each first type of sub-pixel region Q1 belongs to an independent sub-pixel region Q, each second type of sub-pixel region Q2 belongs to an independent sub-pixel region Q, and each third type of sub-pixel region Q3 belongs to an independent sub-pixel region Q. The first type of sub-pixel region Q1 and the second type of sub-pixel region Q2 each contain three pixel openings K1 arranged side-by-side. Compared to the third type of sub-pixel region Q3, the width of the effective light-emitting parts 131a in the first type of sub-pixel region Q1 and the second type of sub-pixel region Q2 is smaller, resulting in a greater reduction in the light emission angle of the black matrix layer 15, thereby improving the privacy protection effect.

[0078] For example, the first type of sub-pixel region Q1 can be a red sub-pixel region, the second type of sub-pixel region Q2 can be a green sub-pixel region, and the third type of sub-pixel region Q3 can be a blue sub-pixel region. That is, the light emitted by the effective light-emitting part 131a in the first type of sub-pixel region Q1 is red light, the light emitted by the effective light-emitting part 131a in the second type of sub-pixel region Q2 is green light, and the light emitted by the effective light-emitting part 131a in the third type of sub-pixel region Q3 is blue light.

[0079] Alternatively, the first type of sub-pixel region Q1 can be a red sub-pixel region, the second type of sub-pixel region Q2 can be a blue sub-pixel region, and the third type of sub-pixel region Q3 can be a green sub-pixel region. That is, the light emitted from the effective light-emitting part 131a in the first type of sub-pixel region Q1 is red light, the light emitted from the effective light-emitting part 131a in the second type of sub-pixel region Q2 is blue light, and the light emitted from the effective light-emitting part 131a in the third type of sub-pixel region Q3 is green light.

[0080] Furthermore, dividing the sub-pixel region Q also results in a smaller distance between adjacent pixel openings K1 within the same sub-pixel region Q. For example, the distance between adjacent pixel openings K1 within the same sub-pixel region Q can range from 11 micrometers to 13 micrometers, such as 12 micrometers, while the distance between adjacent pixel openings K1 within different sub-pixel regions Q can range from 14 micrometers to 16 micrometers, such as 15 micrometers. In this way, some wide-viewing-angle light cannot be blocked by the black matrix layer 14. Since at least a portion of the first light-blocking layer 14 provided in this embodiment is distributed in the first type of sub-pixel region Q1 and the second type of sub-pixel region Q2, and the first light-blocking layer 14 covers the inner walls of the pixel openings K1 in the first type of sub-pixel region Q1 and the second type of sub-pixel region Q2, the first light-blocking layer 14 can block this portion of wide-viewing-angle light, thereby avoiding light leakage and improving the privacy protection effect.

[0081] It should be noted that Figure 3 only illustrates one example of subpixel region segmentation, but this application is not limited to this. At least one type of subpixel region Q among the first type Q1, the second type Q2, and the third type Q3 can be segmented. That is, only one type of subpixel region Q can be segmented, or any two subpixel regions Q can be segmented, or all three types of subpixel regions Q can be segmented. For example, the at least one segmented subpixel region Q may include a green subpixel region. This is because the human eye is more sensitive to green light. By segmenting the green subpixel region, the problem of green light leakage can be effectively reduced, thereby improving the privacy protection effect. However, this application embodiment does not limit the color of the segmented subpixel region Q.

[0082] The embodiments of this application do not limit the number of pixel openings K1 in the segmented sub-pixel regions Q. In some implementations, the number of pixel openings K1 after segmentation can be determined based on the area of ​​the sub-pixel regions Q of each color.

[0083] Optionally, the display panel 10 further includes: a plurality of first electrode blocks 132 corresponding to a plurality of sub-pixel regions Q, and a second electrode layer 133 located on the side of the light-emitting layer 131 facing away from the driving backplate 11. The first electrode blocks 132 are located on the side of the effective light-emitting portion 131a in the corresponding sub-pixel region Q close to the driving backplate 11. Wherein, the first electrode blocks 132 can be anodes and the second electrode layer 133 can be cathodes, then under the control of the driving circuit, the first electrode blocks 132 and the second electrode layer 133 cooperate to drive the light-emitting layer 131 to emit light.

[0084] In this configuration, at least two effective light-emitting portions 131a within the pixel openings K1 of the same sub-pixel region Q are in contact with the corresponding first electrode block 132. That is, only the light-emitting layer 131 is divided, and multiple effective light-emitting portions 131a in the same sub-pixel region Q are driven by the same first electrode block 132, thereby reducing manufacturing difficulty.

[0085] The driving backplate 11 also includes multiple pixel driving circuits that are electrically connected to the multiple first electrode blocks 132. Multiple effective light-emitting parts 131a in the same sub-pixel region Q can be controlled by the same pixel driving circuit, thereby reducing the manufacturing difficulty of the pixel driving circuit.

[0086] In this embodiment, the first light-blocking layer 14 is used to block light from a wide viewing angle. The material of the first light-blocking layer 14 may include a light-absorbing material, such as black light-absorbing resin. This application forms the first light-blocking layer 14 by forming a black resin layer on the side of the pixel definition layer 12 opposite to the driving backplate 11, and then patterning the black resin layer using an exposure and development process. Alternatively, the material of the first light-blocking layer 14 may also include a material with high reflectivity, such as a metallic material or a metal oxide material, which can reflect light from a wide viewing angle and improve the privacy protection effect.

[0087] The thickness of the first light-blocking layer 14 can range from 1 micrometer to 1.5 micrometers. Within this range, the thickness of the first light-blocking layer 14 can ensure that it blocks light from wide viewing angles while having a minimal impact on the overall thickness of the display panel 10. Furthermore, this also minimizes the height difference between the pixel definition layer 12 and the side facing away from the driving backplate 11, thus avoiding any impact on the encapsulation effect.

[0088] For the portion of the first light-blocking layer 14 covering the sidewall of the pixel opening K1, in a direction parallel to the driving backplate 11, the distance between the side of this portion facing the center of the pixel opening K1 and the side of the pixel definition layer 12 facing the center of the pixel opening K1 ranges from 0 micrometers to 0.5 micrometers. This not only ensures sufficient blocking of light from a wide viewing angle but also prevents the first light-blocking layer 14 from being located at the bottom of the pixel opening K1 and affecting light emission. The slope of this portion ranges from 25 degrees to 30 degrees, which ensures that light within a certain viewing angle range is blocked by the first light-blocking layer 14 and is easy to manufacture.

[0089] This application does not limit the material of the pixel definition layer 12. For example, the pixel definition layer 12 can be made of a light-transmitting material. Since the first light-blocking layer 14 is relatively thin, using only a light-absorbing material for the first light-blocking layer 14 can reduce costs. If cost is not a concern, the pixel definition layer 12 can also be made of a light-absorbing material, thereby further improving the privacy protection effect.

[0090] The structure of the first light-blocking layer is explained below:

[0091] In a first exemplary embodiment, the first light-blocking layer can be a separate block structure. Please refer to Figures 4, 5, and 6. Figure 5 is a partial top view of a display panel provided in an embodiment of this application, and Figure 6 is a partial top view of another display panel provided in an embodiment of this application (the black matrix layer is not shown in Figures 5 and 6 to clearly illustrate the structure of the first light-blocking layer, but this embodiment does not limit this). The first light-blocking layer 14 includes: a plurality of separately disposed first light-blocking blocks 141, each first light-blocking block 141 having at least one first light-transmitting hole K2, and the first light-blocking block 141 covering the inner wall of at least one pixel opening K1. This includes the following two cases:

[0092] The first case is shown in Figure 5. A first light blocking block 141 has only one first light-passing hole K2. Thus, multiple first light blocking blocks 141 correspond one-to-one with multiple pixel openings K1. The first light blocking block 141 can be used to block the wide-angle light emitted from the light-emitting layer 131 in the corresponding pixel opening K1.

[0093] The second case is shown in Figures 6 and 7. Figure 7 is a partial top view of another display panel provided in the embodiment of this application. Some of the first light blocking blocks 141 have multiple first light-passing holes K2. Thus, one first light blocking block 141 corresponds to multiple pixel openings K1, and the first light blocking block 141 can be used to block the wide-angle light emitted from the light-emitting layer 131 in the corresponding multiple pixel openings K1.

[0094] Optionally, as shown in Figure 6, the multiple pixel openings K1 corresponding to one first light-blocking block 141 can be distributed in the same sub-pixel region, that is, one first light-blocking block 141 corresponds to one sub-pixel region. As shown in Figure 7, the multiple pixel openings K1 corresponding to one first light-blocking block 141 can also be distributed in multiple sub-pixel regions, that is, one first light-blocking block 141 corresponds to multiple sub-pixel regions.

[0095] The display panel 10 may also include both of the above situations simultaneously. For example, a portion of the sub-pixel area adopts the first situation, while another portion of the sub-pixel area adopts the second situation. This application embodiment does not limit this.

[0096] There is a gap between two adjacent first light-blocking blocks 141. By setting this gap, it is possible to prevent the first light-blocking layer 14 from breaking while climbing up the pixel definition layer 12, and to prevent air bubbles from forming between the first light-blocking layer 14 and the pixel definition layer 12, which could cause the first light-blocking layer 14 to bulge, thereby improving the reliability of the first light-blocking layer 14. For example, the width D1 of this gap on the line connecting the centers of two adjacent pixel openings K1 can range from 4 micrometers to 6 micrometers.

[0097] In the second case, the first light-blocking block can also be provided with auxiliary openings. Please refer to Figure 8. Figure 8 is a partial top view of another display panel provided in the embodiment of this application. The first light-blocking block 141 has multiple auxiliary openings H1. The auxiliary openings H1 can be distributed between two adjacent pixel openings K1 so that the first light-blocking layer 14 also has gaps in the corresponding areas between two adjacent pixel openings K1.

[0098] Optionally, the first light-blocking block 141 includes: a first portion 141a covering the inner wall of the pixel opening K1, and a second portion 141b connected to the first portion 141a, wherein the second portion 141b is located on the side of the pixel definition layer 12 facing away from the driving backplate 11. A gap exists between the two second portions 141b of two adjacent first light-blocking blocks 141.

[0099] The first part 141a is used to block wide-angle light emitted from the light-emitting layer 131, and the second part 141b can reduce the risk of the first light-blocking block 141 peeling off when it is only distributed on the inner wall of the pixel opening K1, thereby improving the reliability of the first light-blocking block 141. For example, both the first part 141a and the second part 141b can be a ring structure.

[0100] In a second exemplary embodiment, the first light-blocking layer can be a single-layer structure. Please refer to Figures 4 and 9. Figure 9 is a partial top view of another display panel provided in this application embodiment (the black matrix layer is not shown in Figure 9 to clearly illustrate the structure of the first light-blocking layer, but this application embodiment does not limit this). The first light-blocking layer 14 includes: a plurality of first light-blocking parts 142, and a second light-blocking part 143 for connecting the plurality of first light-blocking parts 142.

[0101] Multiple first light-blocking parts 142 correspond to multiple pixel openings K1. The first light-blocking parts 142 cover the inner wall of the corresponding pixel openings K1, and each first light-blocking part 142 has a first light-transmitting hole K2. The first light-blocking parts 142 can be used to block wide-angle light emitted from the light-emitting layer 131.

[0102] The second light-blocking section 143 is located on the side of the pixel definition layer 12 opposite to the driving backplate 11, and the second light-blocking section 143 has multiple auxiliary openings H1. The second light-blocking section 143 can connect multiple first light-blocking sections 142, that is, the second light-blocking section 143 and multiple first light-blocking sections 142 can be an integral structure. By setting the auxiliary openings H1, the first light-blocking layer 14 can also have gaps in the corresponding areas between two adjacent pixel openings K1, thereby preventing air bubbles from forming between the first light-blocking layer 14 and the pixel definition layer 12, which could cause the first light-blocking layer 14 to bulge, thus improving the reliability of the first light-blocking layer 14.

[0103] Figure 9 illustrates an example of a strip-shaped auxiliary opening H1. Besides this, the shape of the auxiliary opening H1 can also include, but is not limited to, an inverted ellipse, a circle, an ellipse, a polygon, etc. This application embodiment does not limit the number of auxiliary openings H1; specifically, it can be determined based on the distance between pixel openings K1 and the size of the pixel openings K1.

[0104] It should be noted that the above embodiments use a rectangular pixel opening K1 as an example, but the embodiments of this application do not limit the shape and size of the pixel opening K1 of the pixel definition layer 12, the first light-transmitting hole K2 of the first light-blocking layer 14, and the second light-transmitting hole K3 of the black matrix layer 15. For example, their shapes can also be inverted ellipses, circles, ellipses, polygons, etc. Furthermore, their sizes can be the same or different.

[0105] The embodiments of this application do not limit the arrangement of the pixel opening K1. For example, the arrangement of the pixel opening K1 may include, but is not limited to, diamond arrangement, GGRB arrangement and standard (Real RGB) arrangement.

[0106] Optionally, please refer to Figure 10, which is a schematic diagram of another display panel structure provided in an embodiment of this application. The display panel 10 further includes: a first inorganic encapsulation layer 171, an organic encapsulation layer 172, a second inorganic encapsulation layer 173, a first touch buffer layer 183, a first touch electrode layer 181, a touch insulating layer 184, a second touch electrode layer 182, a second touch buffer layer 185, a black matrix layer 15, a cover layer 191, and a plurality of microlenses 192.

[0107] In this application, other implementation methods can also be used to improve the privacy protection effect of the display panel. The following describes three exemplary embodiments:

[0108] In a first exemplary embodiment, please refer to FIG11, which is a schematic diagram of another display panel structure provided in an embodiment of the present application. The display panel 10 further includes a support layer 161 and a second light-blocking layer 162.

[0109] The support layer 161 is located on the side of the pixel definition layer 12 facing away from the driving backplate 11. The support layer 161 has a plurality of first mesh holes K4, which correspond to a plurality of pixel openings K1. The orthographic projection of the first mesh holes K4 on the driving backplate 11 overlaps with the orthographic projection of the corresponding pixel openings K1 on the driving backplate 11. Here, the support layer 161 can be a mesh film layer with a plurality of first mesh holes K4. The support layer 161 is used to support and elevate the second light-blocking layer 162, thereby increasing the area of ​​the second light-blocking layer 162, so that the second light-blocking layer 162 can block more light from a wide viewing angle. For example, the material of the support layer 161 can be an organic light-transmitting material.

[0110] For example, the thickness of the support layer 161 can be 3 micrometers, but the embodiments of this application are not limited to this. By adjusting the thickness of the support layer 161, the angle at which the second light-blocking layer 162 can block light with a wide viewing angle can also be adjusted. In the direction parallel to the driving backplate 11, the distance between the side of the support layer 161 facing the center of the pixel opening K1 and the side of the pixel definition layer 12 facing the center of the pixel opening K1 is in the range of 2 micrometers to 3 micrometers. This can prevent the second light-blocking layer 162 on the support layer 161 from affecting the emission of light with a small viewing angle. The slope of the support layer 161 is in the range of 25 degrees to 30 degrees. This can ensure that light within a certain viewing angle range is blocked by the second light-blocking layer 162 and is easy to manufacture.

[0111] The second light-blocking layer 162 at least partially covers and contacts the inner walls of each of the first mesh holes K4. That is, the second light-blocking layer 162 can completely cover the inner walls of each of the first mesh holes K4, or it can cover only a portion of the inner walls of each of the first mesh holes K4. Here, the portion of the second light-blocking layer 162 covering the inner walls of the first mesh holes K4 can be used to block a portion of wide-angle light rays, such as light ray L4.

[0112] The material of the second light-blocking layer 162 may include a metallic material, such as silver. In this application, the metallic material can be sputtered onto the support layer 161 using a magnetron sputtering process to obtain the second light-blocking layer 162. Since metallic materials have high reflectivity, they can reflect light from a wide viewing angle, thereby further improving the privacy protection effect. In addition, the second light-blocking layer 162 may also include a light-absorbing material, which can absorb light from a wide viewing angle, also improving the privacy protection effect.

[0113] For example, the thickness of the second light-blocking layer 162 can be in the range of 0.3 micrometers to 1 micrometer. With the thickness of the first light-blocking layer 14 in this range, the overall thickness of the display panel 10 can be reduced while ensuring that light is blocked from a wide viewing angle, and the manufacturing cost can be reduced.

[0114] Optionally, the second light-blocking layer 162 also covers the side of the support layer 161 facing away from the drive backplate 11. The orthographic projection of the support layer 161 onto the drive backplate 11 lies within the orthographic projection of the second light-blocking layer 162 onto the drive backplate 11. Thus, the second light-blocking layer 162 can also be a mesh film layer with multiple openings. The portion of the second light-blocking layer 162 covering the side of the support layer 161 facing away from the drive backplate 11 can prevent the second light-blocking layer 162 from peeling off, thereby improving the reliability of the second light-blocking layer 162.

[0115] Optionally, the display panel 10 further includes a first inorganic encapsulation layer 171, which is located between the pixel definition layer 12 and the support layer 161, and covers the portion of the light-emitting layer 131 located within the pixel opening K1. Here, the first inorganic encapsulation layer 171 is used to encapsulate the light-emitting layer 131, thereby preventing external water and oxygen corrosion. By setting the support layer 161 and the second light-blocking layer 162 to be located on the side of the first inorganic encapsulation layer 171 away from the pixel definition layer 12, the height difference of the film layer below the first inorganic encapsulation layer 171 can be avoided, thereby ensuring a better encapsulation effect of the first inorganic encapsulation layer 171.

[0116] It should be noted that the light emitted from the effective light-emitting part 131a in the display panel 10 is very likely to generate an optical waveguide phenomenon inside the first inorganic encapsulation layer 171 during the process of passing through the first inorganic encapsulation layer 171. That is, part of the light rays that are incident on the first inorganic encapsulation layer 171 will undergo multiple total internal reflections between the upper and lower interfaces of the first inorganic encapsulation layer 171 in order to propagate laterally inside the first inorganic encapsulation layer 171.

[0117] In this application, the side of the support layer 161 closest to the driving backplate 11 contacts the first inorganic encapsulation layer 171, and the refractive index of the support layer 161 is greater than that of the first inorganic encapsulation layer 171. Thus, according to Snell's law, when a laterally propagating light ray (e.g., light ray L9) in the first inorganic encapsulation layer 171 reaches the interface between the first inorganic encapsulation layer 171 and the support layer 161, the light ray will be refracted and enter the support layer 161. This prevents the light ray from continuing to propagate in the first inorganic encapsulation layer 171 as an optical waveguide. Furthermore, after entering the support layer 161, the light ray's continued propagation can be blocked by the second light-blocking layer 162, thereby reducing the risk of waveguide light escaping from adjacent sub-pixel areas and further improving the privacy protection effect.

[0118] It should be noted that each embodiment in this application can be implemented individually or in combination. Therefore, the display panel shown in FIG11 may only have a support layer 161 and a second light-blocking layer 162, without a first light-blocking layer 14, which can also improve the privacy protection effect.

[0119] Optionally, please refer to Figure 12, which is a schematic diagram of another display panel structure provided in an embodiment of this application. The display panel 10 further includes: an organic encapsulation layer 172, a second inorganic encapsulation layer 173, a first touch buffer layer 183, a first touch electrode layer 181, a touch insulating layer 184, a second touch electrode layer 182, a second touch buffer layer 185, a first black matrix layer 151, a second black matrix layer 152, a light-transmitting layer 153, a cover layer 191, and a plurality of microlenses 192.

[0120] In a second exemplary embodiment, please refer to FIG13, which is a schematic diagram of another display panel structure provided in an embodiment of the present application. The display panel 10 further includes: a first dimming layer 174 and a second dimming layer 175.

[0121] The first dimming layer 174 is located between the pixel definition layer 12 and the black matrix layer 15. The first dimming layer 174 has a plurality of dimming holes K5, which correspond to a plurality of pixel openings K1. The orthographic projection of the dimming hole K5 on the driving back plate 11 overlaps with the orthographic projection of the corresponding pixel opening K1 on the driving back plate 11. At least a portion of the second dimming layer 175 is located within the plurality of dimming holes K5 and is in contact with the inner wall of each dimming hole K5.

[0122] The refractive index of the second dimming layer 175 is greater than that of the first dimming layer 174. Thus, when a wide-angle light beam emitted from the light-emitting layer 131 enters the second dimming layer 175, total internal reflection occurs at the interface between the second dimming layer 175 and the first dimming layer. For example, light beam L5. The first and second dimming layers 174 and 175 then converge the emitted light beam, thereby increasing the brightness of the forward-emitting light while further reducing light leakage over a wide angle, thus improving the privacy protection effect.

[0123] For example, the material of the first dimming layer 174 can be an organic material, and the manufacturing process of the first dimming layer 174 can include inkjet printing (IJP) technology. In a direction parallel to the drive backplane 11, the distance between the side of the first dimming layer 174 facing the center of the dimming aperture K5 and the side of the pixel definition layer 12 facing the center of the corresponding pixel opening K1 ranges from 0 micrometers to 0.5 micrometers. This allows light with a wide viewing angle to reach the interface between the first dimming layer 174 and the second dimming layer 175. The refractive index of the second dimming layer 175 can range from 1.7 to 1.8, for example, 1.71, and the thickness of the second dimming layer 175 can range from 2 micrometers to 3 micrometers, for example, 2.5 micrometers.

[0124] Optionally, the display panel 10 further includes a first inorganic encapsulation layer 171, an organic encapsulation layer 172, and a second inorganic encapsulation layer 173. The first inorganic encapsulation layer 171, the organic encapsulation layer 172, and the second inorganic encapsulation layer 173 work together to encapsulate the light-emitting layer 131. For example, the manufacturing process of the first inorganic encapsulation layer 171 and the second inorganic encapsulation layer 172 may include a chemical vapor deposition (CVD) process, and the manufacturing process of the organic encapsulation layer 172 may include an inkjet printing process.

[0125] The first inorganic encapsulation layer 171 covers the portion of the light-emitting layer 131 located within the pixel opening K1. The organic encapsulation layer 172 is located on the side of the first inorganic encapsulation layer 171 facing away from the driving backplate 11. The first dimming layer 174 and the second dimming layer 175 are both located on the side of the organic encapsulation layer 172 facing away from the driving backplate 11. The second inorganic encapsulation layer 173 is located on the side of the first dimming layer 174 and the second dimming layer 175 facing away from the driving backplate 11.

[0126] In this embodiment, the second inorganic encapsulation layer 173 can cover the first dimming layer 174 and the second dimming layer 175, preventing water and oxygen from intruding through the gaps, thereby ensuring a better encapsulation effect of the display panel 10. Furthermore, the second inorganic encapsulation layer 173 also facilitates the manufacturing of the upper film layers, for example, preventing the black matrix layer 15 from cracking.

[0127] It should be noted that the display panel shown in Figure 13 also includes a support layer 161 and a second light-blocking layer 162. That is, Figure 13 is a combination of the first and second embodiments. However, this application is not limited to this. This application can also provide only the first dimming layer 174 and the second dimming layer 175 in the display panel 10, which can also improve the privacy protection effect. Alternatively, this application can provide the support layer 161, the second light-blocking layer 162, the first dimming layer 174, and the second dimming layer 175 in the display panel 10, without providing the first light-blocking layer 14, which can also improve the privacy protection effect.

[0128] Optionally, please refer to Figure 14, which is a schematic diagram of another display panel structure provided in an embodiment of this application. The display panel 10 further includes: a first touch buffer layer 183, a first touch electrode layer 181, a touch insulating layer 184, a second touch electrode layer 182, a second touch buffer layer 185, a first black matrix layer 151, a second black matrix layer 152, a light-transmitting layer 153, a cover layer 191, and a plurality of microlenses 192.

[0129] In a third exemplary embodiment, please refer to Figures 14 and 15. Figure 15 is a schematic diagram of another display panel structure provided in an embodiment of this application. The display panel 10 further includes a touch electrode layer 18.

[0130] In this application, Flexible Multi Layer On Cell (FMLOC) technology can be employed. The FMLOC process refers to integrating a touch electrode layer 18 into the encapsulation layer of the display panel 10 to achieve touch control and realize integrated display and touch functionality. The touch electrode layer 18 may include a self-capacitive capacitor structure or a mutual-capacitive capacitor structure. When a user's finger contacts the touch electrode layer 18, the capacitance value in the self-capacitive capacitor structure or the mutual-capacitive capacitor structure changes to determine the location of the touch, thereby enabling the display panel 10 to perform touch functionality.

[0131] The touch electrode layer 18 has a plurality of second grid holes K6, which correspond to a plurality of pixel openings K1. The orthographic projection of the second grid holes K6 on the driving backplate 11 overlaps with the orthographic projection of the corresponding pixel openings K1 on the driving backplate 11. That is, the touch electrode layer 18 can be a grid-shaped metal electrode layer. The material of the touch electrode layer 18 can include a metal material with high reflectivity. When light passes through the touch electrode layer 18 at a wide viewing angle, it will be reflected by the touch electrode layer 18, thereby reducing the risk of light leakage. The touch electrode layer 18 may include a first touch electrode layer 181 and a second touch electrode layer 182 arranged sequentially in a direction away from the driving backplate 11.

[0132] For example, the distance between the side of the touch electrode layer 18 facing the center of the second mesh hole K6 and the side of the pixel definition layer 12 facing the center of the corresponding pixel opening K1 ranges from 0 micrometers to 0.5 micrometers. This ensures that the orthographic projection of the touch electrode layer 18 onto the driving backplate 11 does not coincide with the orthographic projection of the pixel opening K1 onto the driving backplate 11. Therefore, the touch electrode layer 18 can block wide-viewing-angle light, such as light rays L6 and L7, to prevent light leakage, and it will not block narrow-viewing-angle light, allowing the narrow-viewing-angle light emitted from the light-emitting layer 131 to be transmitted through the corresponding second mesh hole K6 in the touch electrode layer 18, thereby ensuring that the display panel 10 can display images normally.

[0133] The location of the touch electrode layer 18 includes two cases:

[0134] In the first scenario, please refer to Figure 14. The touch electrode layer 18 is located on the side of the second inorganic encapsulation layer 173 away from the driving backplate 11; that is, the touch electrode layer 18 is disposed outside the encapsulation layer. In this way, while ensuring that the touch electrode layer 18 has a certain light-blocking effect, the touch sensitivity is high.

[0135] In the second scenario, as shown in Figure 15, the touch electrode layer 18 is located between the organic encapsulation layer 172 and the second inorganic encapsulation layer 173; that is, the touch electrode layer 18 is disposed within the encapsulation layer. In this way, the touch electrode layer 18 is closer to the light-emitting layer 131, which can block more light from a wide viewing angle, thereby further reducing the risk of light leakage. For example, the thickness of the organic encapsulation layer 172 can range from 10 micrometers to 14 micrometers. Thus, even with the touch electrode layer 18 disposed within the encapsulation layer, it can be ensured that there is no risk to encapsulation reliability.

[0136] Additionally, the display panel 10 may further include: a first touch buffer layer 183, a touch insulating layer 184, and a second touch buffer layer 185. The touch insulating layer 184 is located between the first touch electrode layer 181 and the second touch electrode layer 182, and serves as insulation to prevent short circuits. The first touch buffer layer 183 is located on the side of the first touch electrode layer 181 closest to the driving backplate 11. The first touch buffer layer 183 can enhance the bonding force between the touch electrode layer 181 and the second inorganic encapsulation layer 173, or vice versa. The second touch buffer layer 185 is located on the side of the second touch electrode layer 182 away from the driving backplate 11, and serves to protect the second touch electrode layer 182.

[0137] It should be noted that the display panel shown in Figures 14 and 15 also includes a support layer 161, a second light-blocking layer 162, a first dimming layer 174, and a second dimming layer 175. That is, Figures 14 and 15 represent a combination of the first, second, and third embodiments, but this application is not limited to this. This application may also include only the touch electrode layer 18 in the display panel 10, or it may combine any two of the above three embodiments to improve the privacy protection effect. Alternatively, this application may implement the third embodiment alone or combine the above three embodiments without providing the first light-blocking layer 14. The display panel 10 also includes:

[0138] Optionally, referring to Figure 15, the display panel 10 also includes a cover layer 191 and a plurality of microlenses 192, the microlenses 192 protruding toward the side opposite to the drive backplate 11.

[0139] Multiple microlenses 192 are located on the side of the black matrix layer 15 away from the driving backplate 11. The multiple microlenses 192 correspond to multiple pixel openings K1. The orthographic projection of the microlenses 192 on the driving backplate 11 overlaps with the orthographic projection of the corresponding pixel openings K1 on the driving backplate 11. The cover layer 191 covers the multiple microlenses 192 and is in contact with the multiple microlenses 192.

[0140] The refractive index of microlens 192 is greater than that of the cover layer 191. According to Snell's law, when light emitted from the light-emitting layer 131 reaches the interface between microlens 192 and cover layer 191, the light is refracted, and the angle of incidence is greater than the angle of emission. Combined with the curved surface of microlens 192, this allows the light to be collimated, such as light ray L8, thereby improving the forward light emission efficiency, reducing light from large angles, and further enhancing the privacy protection effect.

[0141] Optionally, the black matrix layer 15 can be a single-layer structure, or the black matrix layer 15 can be a multi-layer structure. For example, the black matrix layer 15 may include a first black matrix layer 151, a second black matrix layer 152 and a light-transmitting layer 153 stacked in a direction away from the drive backplate 10.

[0142] The first black matrix layer 151 can be used to block light from wide viewing angles, the second black matrix layer 152 is used to determine the viewing angle of the display panel 10, and the light-transmitting layer 153 can be used to adjust the height of the second black matrix layer 152. In this embodiment, the distance between the second black matrix layer 152 and the light-emitting layer 131 can be adjusted by changing the thickness of the light-transmitting layer 153, thereby determining the viewing angle range of the light emitted from the light-emitting layer 131 that can be transmitted, thus improving the flexibility of adjusting the privacy viewing angle of the display panel 10. Furthermore, by setting the light-transmitting layer 153, the problem of high cost caused by excessive thickness of the black matrix layer 15 can be avoided.

[0143] In this application, the touch electrode layer 18 can be reused as either the first black matrix layer 151 or the second black matrix layer 152 to achieve a light-shielding effect. That is, if the touch electrode layer 18 can be reused as the first black matrix layer 151, then the touch electrode layer 18 is located on the side of the second black matrix layer 152 closer to the driving backplate 11. Alternatively, if the touch electrode layer 18 can be reused as the second black matrix layer 152, then the touch electrode layer 18 is located on the side of the first black matrix layer 151 away from the driving backplate 11.

[0144] In a display panel provided by a related technology, the light-emitting layers in the red and green sub-pixel regions are divided by a pixel definition layer. As a result, the width of the effective light-emitting part in the red and green sub-pixel regions is smaller. Therefore, compared with blue light, the black matrix layer reduces the light emission angle of red and green light to a greater extent. Red and green light can achieve privacy protection, while the brightness of blue light remains high at a wide viewing angle.

[0145] However, in related technologies, pixel segmentation results in a smaller spacing between the openings of two adjacent pixels within the same red sub-pixel region, and also a smaller spacing between the openings of two adjacent pixels within the same green sub-pixel region. This leads to some red and green light at wide viewing angles not being blocked by the black matrix layer. Consequently, the brightness attenuation rate curves of white, red, and green light emitted from the display panel provided by these technologies exhibit a slight upward tilt at wide viewing angles, resulting in light leakage issues for all three colors (white, red, and green) at such angles. This leads to poor privacy protection and fails to meet the requirements of privacy protection products.

[0146] In the display panel provided in this application, a first light-blocking layer is provided to block light from wide viewing angles. Therefore, the brightness attenuation rate curves of white, red, and green light emitted by the display panel provided in this application do not show any upward tilt at wide viewing angles. This means that there is no light leakage problem for white, red, and green light at wide viewing angles, resulting in good privacy protection and meeting the requirements of privacy protection products. Furthermore, the brightness attenuation rate curve of blue light in the display panel provided in this application is basically the same as that of blue light in display panels provided in related technologies. This is because the blue sub-pixel area is not segmented in the display panel provided in this application.

[0147] In summary, the embodiments of this application provide a display panel in which a first light-blocking layer is provided. At least a portion of the first light-blocking layer covers and contacts the inner wall of each pixel opening. In this way, for the light emitted from the light-emitting layer in the pixel opening, at least a portion of the wide-viewing-angle light can be blocked by the first light-blocking layer, thereby reducing the possibility of wide-viewing-angle light emanating from the area corresponding to adjacent pixel openings and reducing the risk of light leakage of the display panel at wide viewing angles, thus improving the privacy protection effect of the display panel.

[0148] On the other hand, embodiments of this application also provide a display device, which includes a power supply component and a display panel provided in any of the above embodiments. The power supply component can supply power to the display panel. For example, the display device can be any product or component with display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator.

[0149] Since the display device includes the display panel provided in the above embodiments, the display device can also have a similar effect, that is, the privacy protection effect of the display device is better.

[0150] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0151] In this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" means two or more, unless otherwise expressly defined.

[0152] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display panel, characterized in that, The display panel includes: a driving backplane, a pixel definition layer, an emissive layer, a first light-blocking layer, and a black matrix layer; The pixel definition layer is located on one side of the driving backplate, and the pixel definition layer has multiple pixel openings; At least a portion of the light-emitting layer is located within the plurality of pixel openings; At least a portion of the first light-blocking layer covers the inner wall of each of the pixel openings and is in contact with the inner wall of each of the pixel openings; the first light-blocking layer has a plurality of first light-transmitting holes, the plurality of first light-transmitting holes corresponding to the plurality of pixel openings, and the orthographic projection of the first light-transmitting hole on the driving back plate overlaps with the orthographic projection of the corresponding pixel opening on the driving back plate. The black matrix layer is located on the side of the pixel definition layer opposite to the driving backplate. The black matrix layer has a plurality of second light-transmitting holes, which correspond to the plurality of pixel openings. The orthographic projection of the second light-transmitting hole on the driving backplate overlaps with the orthographic projection of the corresponding pixel opening on the driving backplate.

2. The display panel according to claim 1, characterized in that, The first light-blocking layer includes: a plurality of separately disposed first light-blocking blocks, each first light-blocking block having at least one first light-transmitting hole, and the first light-blocking block covering the inner wall of at least one of the pixel openings; There is a gap between two adjacent first light-blocking blocks.

3. The display panel according to claim 2, characterized in that, The first light-blocking block includes: a first portion covering the inner wall of the pixel opening, and a second portion connected to the first portion, wherein the second portion is located on the side of the pixel definition layer opposite to the driving backplate; The gap is located between the two second portions of two adjacent first light-blocking blocks.

4. The display panel according to claim 1, characterized in that, The first light-blocking layer includes: a plurality of first light-blocking parts, and a second light-blocking part for connecting the plurality of first light-blocking parts; The plurality of first light-blocking parts correspond to the plurality of pixel openings, the first light-blocking parts cover the inner wall of the corresponding pixel openings, and each first light-blocking part has a first light-transmitting hole. The second light-blocking part is located on the side of the pixel definition layer opposite to the driving backplate, and the second light-blocking part has multiple auxiliary openings.

5. The display panel according to any one of claims 1-4, characterized in that, The display panel further includes: a support layer and a second light-blocking layer; The support layer is located on the side of the pixel definition layer opposite to the driving backplate. The support layer has a plurality of first mesh holes, which correspond to the plurality of pixel openings. The orthographic projection of the first mesh holes on the driving backplate overlaps with the orthographic projection of the corresponding pixel openings on the driving backplate. The second light-blocking layer at least partially covers the inner wall of each of the first mesh holes and is in contact with the inner wall of each of the first mesh holes.

6. The display panel according to claim 5, characterized in that, The second light-blocking layer also covers the side of the support layer opposite to the drive back plate; The orthographic projection of the support layer on the drive back plate is located within the orthographic projection of the second light-blocking layer on the drive back plate.

7. The display panel according to claim 6, characterized in that, The display panel further includes: a first inorganic encapsulation layer, which is located between the pixel definition layer and the support layer, and covers the portion of the light-emitting layer located within the pixel opening.

8. The display panel according to claim 6, characterized in that, The side of the support layer closest to the drive backplate is in contact with the first inorganic encapsulation layer, and the refractive index of the support layer is greater than that of the first inorganic encapsulation layer.

9. The display panel according to any one of claims 1-4 and 6-8, characterized in that, The display panel further includes: a first dimming layer and a second dimming layer; The first dimming layer is located between the pixel definition layer and the black matrix layer. The first dimming layer has a plurality of dimming holes, which correspond to the plurality of pixel openings. The orthographic projection of the dimming hole on the driving back panel overlaps with the orthographic projection of the corresponding pixel opening on the driving back panel. At least a portion of the second dimming layer is located within the plurality of dimming holes and is in contact with the inner wall of each dimming hole. The refractive index of the second dimming layer is greater than that of the first dimming layer.

10. The display panel according to claim 9, characterized in that, The display panel further includes: a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer; The first inorganic encapsulation layer covers the portion of the light-emitting layer located within the pixel opening; the organic encapsulation layer is located on the side of the first inorganic encapsulation layer opposite to the driving backplate; both the first dimming layer and the second dimming layer are located on the side of the organic encapsulation layer opposite to the driving backplate; the second inorganic encapsulation layer is located on the side of both the first dimming layer and the second dimming layer opposite to the driving backplate.

11. The display panel according to claim 10, characterized in that, The display panel further includes: a touch electrode layer; the touch electrode layer has a plurality of second grid holes, the plurality of second grid holes corresponding to the plurality of pixel openings, and the orthographic projection of the second grid holes on the driving back panel overlaps with the orthographic projection of the corresponding pixel openings on the driving back panel; The touch electrode layer is located on the side of the second inorganic encapsulation layer opposite to the driving backplate, or the touch electrode layer is located between the organic encapsulation layer and the second inorganic encapsulation layer.

12. The display panel according to any one of claims 1-4, 6-8, and 10-11, characterized in that, The light-emitting layer includes: effective light-emitting portions distributed in each of the pixel openings; The display panel includes: a plurality of sub-pixel regions, at least a portion of the plurality of sub-pixel regions including at least two pixel openings; Wherein, at least two of the effective light-emitting portions within the pixel openings in the same sub-pixel region are of the same type.

13. The display panel according to claim 12, characterized in that, The display panel further includes: a plurality of first electrode blocks corresponding to the plurality of sub-pixel regions, and a second electrode layer located on the side of the light-emitting layer away from the driving backplate; the first electrode blocks are located on the side of the effective light-emitting portion in the corresponding sub-pixel region closer to the driving backplate; In this sub-pixel region, at least two of the effective light-emitting portions within the pixel openings are in contact with the corresponding first electrode block.

14. The display panel according to any one of claims 1-4, 6-8, and 10-11, characterized in that, The display panel further includes a cover layer and a plurality of microlenses, the microlenses protruding toward a side opposite to the driving backplate; The plurality of microlenses are located on the side of the black matrix layer opposite to the driving backplate. The plurality of microlenses correspond to the plurality of pixel openings. The orthographic projection of the microlens on the driving backplate overlaps with the orthographic projection of the corresponding pixel opening on the driving backplate. The cover layer covers the plurality of microlenses and is in contact with the plurality of microlenses. The refractive index of the microlens is greater than that of the capping layer.

15. A display device, characterized in that, include: A power supply component, and a display panel electrically connected to the power supply component, the display panel comprising: the display panel according to any one of claims 1 to 14.

Images