A display panel and display device

Abstract

The application provides a display panel and a display device, the display panel comprising a substrate and a plurality of pixel units, each pixel unit comprising a plurality of sub-pixels, each sub-pixel comprising at least three independent first, second and third sub-sub-pixels; the first sub-sub-pixel emits first viewing angle light; the second sub-sub-pixel emits second viewing angle light; the third sub-sub-pixel emits third viewing angle light; the first, second and third viewing angles at least partially do not overlap with each other. By physically dividing the sub-pixel into three independently controlled sub-sub-pixels and making them correspond to different exit viewing angles, at least three independent display channels are constructed on the same display panel. The problem that the traditional peep-proof technology can only be viewed in a single viewing angle is solved, thereby realizing multi-viewing angle and multi-content parallel display, and significantly improving the functionality of the display panel and the universality of the application scene.

Description

Technical Field

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

[0002] With the development of display technology, users have placed higher demands on the privacy and versatility of display devices. Traditional display panels, due to their Lambertian light emission characteristics, display patterns and content identically from all viewing angles. This means that in scenarios such as in a car, navigation, entertainment, and other information on the central control screen will be presented indiscriminately to the driver, front passenger, and even rear passengers. In certain situations, this all-around visibility can expose user privacy and negatively impact the user experience.

[0003] To address privacy concerns, several solutions have been proposed in existing technologies. For example, using louvered privacy films or controlling the light emission direction with liquid crystal light valves reduces lateral light emission, ensuring that only the viewer directly in front of the screen (the primary viewing angle) can see the displayed content. However, these technologies, while limiting the viewing angle, also introduce several problems. Since only the user at the primary viewing angle can see the image, they cannot meet the needs of passengers in multiple seats (such as the driver, front passenger, and rear passengers) viewing the same screen and obtaining different information. This significantly limits the application of display panels in scenarios requiring multi-user sharing with varying information needs. Summary of the Invention

[0004] Based on this, the present invention provides a display panel and a display device, providing a novel privacy-protecting display panel that displays multiple views and multiple contents in parallel, which improves the flexibility of information sharing and user experience while ensuring display privacy.

[0005] In a first aspect, embodiments of this application also provide a display panel, including:

[0006] A substrate; a plurality of pixel units disposed on one side of the substrate; each pixel unit includes a plurality of sub-pixels, each sub-pixel including at least three independent first sub-sub-pixels, second sub-sub-pixels, and third sub-sub-pixels; the first sub-sub-pixels emit first-view light rays; the second sub-sub-pixels emit second-view light rays; the third sub-sub-pixels emit third-view light rays; wherein, the first view, the second view, and the third view do not overlap at least partially with each other.

[0007] Based on the same inventive concept, embodiments of this application also provide a display device, including the display panel provided in the first aspect.

[0008] In summary, the display panel provided by this invention constructs at least three independent display channels on the same display panel by physically dividing sub-pixels into three independently controlled sub-sub-pixels, each corresponding to a different emission angle. This solves the problem of traditional privacy technologies only allowing single-view viewing, thereby achieving multi-view, multi-content parallel display and significantly improving the functionality and application scope of the display panel. Attached Figure Description

[0009] Figure 1 This is a top view structural diagram of a display panel provided in an embodiment of the present invention;

[0010] Figure 2 for Figure 1 A magnified structural diagram of a pixel unit provided in an embodiment of the present invention;

[0011] Figure 3 for Figure 1 A cross-sectional structural diagram of a display panel provided along the AA' direction;

[0012] Figure 4 This is a schematic diagram of the emission from the first, second, and third viewing angles in the display panel provided in an embodiment of the present invention;

[0013] Figure 5 for Figure 1 A cross-sectional view of another display panel provided along the AA' direction;

[0014] Figure 6 for Figure 1 A cross-sectional view of another display panel provided along the AA' direction;

[0015] Figure 7 for Figure 1 A cross-sectional view of another display panel provided along the AA' direction;

[0016] Figure 8 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures:

[0018] 200 - Display panel; 20 - Substrate; 30 - Pixel driving circuit layer; 31 - First pixel circuit; 32 - Second pixel circuit; 33 - Third pixel circuit; 40 - Pixel unit; 41 - Sub-pixel; 41a - First sub-sub-pixel; 41b - Second sub-sub-pixel; 41c - Third sub-sub-pixel; BM1 - First light-shielding structure; BM2 - Second light-shielding structure; W1 - First opening; D2 - Second opening; 51 - First lens; 52 - Second lens; 53 - Third lens; L - Light-emitting layer; 300 - Display device. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the present application and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present application are shown in the drawings, not the entire structure. Various modifications and variations can be made to the present application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, the present application is intended to cover modifications and variations of the present application that fall within the scope of the technical solutions claimed in the corresponding claims and their equivalents. It should be noted that the implementation methods provided in the embodiments of the present application can be combined with each other without contradiction.

[0020] In this embodiment of the invention, the term "sub-subpixel" refers to a conventional subpixel region used to display a basic color (such as red, green, or blue) that is further divided into multiple smaller light-emitting units in terms of physical structure. Each sub-subpixel has an independent light-emitting layer domain and electrode structure, and can be driven to emit light independently.

[0021] "Viewing angle" or "emission angle" refers to the direction or angular range in which light emitted from a sub-pixel is concentrated and emitted into space after being controlled by light-shielding structures and optical lenses within the display panel. In this invention, the first viewing angle, the second viewing angle, and the third viewing angle are three different viewing directions that do not overlap with each other at least partially.

[0022] Figure 1 This is a top view schematic diagram of a display panel provided in an embodiment of the present invention. Figure 2 for Figure 1 A magnified structural diagram of a pixel unit provided in an embodiment of the present invention is shown below. Figure 3 This is a schematic diagram of the emission from the first, second, and third viewing angles in the display panel provided in an embodiment of the present invention. Figure 4 for Figure 1 A cross-sectional structural diagram of a display panel provided along the AA' direction, for reference. Figures 1-4 This application provides a display panel 200. The display panel 200 can be a liquid crystal display (LCD), an organic light-emitting diode (OLED) display panel, or a micro-light-emitting diode (MicroLED) display panel, etc., and this application does not limit it. This application only uses an OLED display panel as an example for illustrative purposes.

[0023] Combination Figures 1-3As shown, the display panel 200 provided in this embodiment of the invention includes a substrate 20 and a plurality of pixel units 40 disposed on one side of the substrate 20. The substrate 20 can be a flexible substrate or a rigid substrate. Each pixel unit 30 includes a plurality of sub-pixels, and each sub-pixel includes at least three independent first sub-sub-pixels 41a, second sub-sub-pixels 41b, and third sub-sub-pixels 41c. The first sub-sub-pixels 41a emit light from a first viewing angle A; the second sub-sub-pixels 41b emit light from a second viewing angle B; and the third sub-sub-pixels 41c emit light from a third viewing angle C; wherein the first viewing angle A, the second viewing angle B, and the third viewing angle C do not overlap at least partially with each other.

[0024] Specifically, multiple pixel units 40 are arranged in an array within the display area. Each pixel unit 40 includes multiple sub-pixels, such as a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, to achieve full-color display. Each sub-pixel is physically divided into at least three independent sub-sub-pixels, such as a first sub-sub-pixel 41a, a second sub-sub-pixel 41b, and a third sub-sub-pixel 41c. This physical division is not a simple pixel multiplication, but rather a directional optical guidance of the emitted light, forming the basis for multi-view display. The three independent light-emitting units are given different emission directions. For example, combined with... Figure 3 and Figure 4 As shown, the first sub-pixel 41a emits light along the first viewing angle A to form a first-view image; the second sub-pixel 41b emits light along the second viewing angle B to form a second-view image; and the third sub-pixel 41c emits light along the third viewing angle C to form a third-view image. The content of the three viewing images can be the same or different from each other. This breaks the limitation of traditional displays where one subpixel corresponds to only one viewing angle, allowing the same pixel unit 30 to present independent image information in three different directions in space.

[0025] For example, such as Figure 4 As shown, especially in in-vehicle display applications, the light emitted from the first perspective A corresponds to the rear passenger's perspective, forming audio-visual and interconnected images; the light emitted from the second perspective B corresponds to the driver's main viewing area, forming driver's navigation and vehicle speed images; and the light emitted from the third perspective C corresponds to the passenger's entertainment area, forming audio-visual and cultural entertainment. This three-view design breaks through the traditional barrier of single-view privacy protection and achieves a multi-view parallel display effect with three perspectives on one screen.

[0026] In summary, this application constructs at least three independent display channels on the same display panel by physically dividing a sub-pixel into three independently controlled sub-sub-pixels, each corresponding to a different emission angle. This solves the problem of traditional privacy screen technology, which only allows for single-view viewing, thus enabling parallel display of multiple views and content, significantly improving the functionality and applicability of the display panel.

[0027] Based on the above embodiments, in order to achieve independent driving of sub-sub-pixels, refer to Figure 3 The display panel 200 also includes a pixel driving circuit layer 30 located between the substrate 20 and the pixel unit 30. This pixel driving circuit layer 30 includes a first pixel circuit 31, a second pixel circuit 32, and a third pixel circuit 33, all of which are independent of each other. The first pixel circuit 31 is connected to a first sub-sub-pixel 41a, the second pixel circuit 32 is connected to a second sub-sub-pixel 41b, and the third pixel circuit 33 is connected to a third sub-sub-pixel 41c. This application employs an independent driving design, allowing the three sub-sub-pixels to receive different data signals, thereby displaying different grayscale levels and colors, ultimately presenting completely different images from three viewing angles. In one embodiment, the first pixel circuit 31, the second pixel circuit 32, and the third pixel circuit 33 respectively receive independent first, second, and third data signals, and transmit them to the first sub-sub-pixel 41a, the second sub-sub-pixel 41b, and the third sub-sub-pixel 41c, respectively, to achieve individual control of the grayscale and color of the three sub-sub-pixels, thus realizing a multi-view display function.

[0028] It should be noted that the display panel provided in this application embodiment also includes other film layer structures, which are not shown one by one in the embodiments of the present invention. By way of example, refer to Figure 3 Taking an OLED display panel as an example, the display panel provided in this embodiment of the invention further includes a pixel definition layer (PDL), which has multiple openings to define the light-emitting layer L region of each sub-sub-pixel. The light-emitting layers L of the first sub-sub-pixel 41a, the second sub-sub-pixel 41b, and the third sub-sub-pixel 41c are disposed within the openings of the PDL and work together to achieve display. The pixel circuit can be a 2T1C, 4T1C, 7T1C, 7T2C, 8T1C, 8T2C, etc., and this embodiment of the application does not impose any limitations.

[0029] Based on the above embodiments, in order to precisely control the direction of light emission, this application also provides a fine viewing angle control structure. (Continue to refer to...) Figure 3 The display panel 200 also includes a first light-shielding structure BM1 and a second light-shielding structure BM2 sequentially disposed on the light-emitting side of the sub-pixels; the first light-shielding structure BM1 includes a first opening D1 and a second opening D2. Along the direction perpendicular to the plane of the substrate 20 ( Figure 3In the Z-direction, the first opening D1 at least partially overlaps with the first sub-sub-pixel 41a, and the second opening D2 at least partially overlaps with the second light-blocking structure BM2, the second sub-sub-pixel 41b, and the third sub-sub-pixel 41c; the second light-blocking structure BM2 is used to block the light from the frontal view of the second sub-sub-pixel 41b and the third sub-sub-pixel 41c.

[0030] Here, the orthogonal viewing angle refers to the direction perpendicular to the plane of the substrate 20, that is, the normal direction of the screen. Figure 3 In the Z direction. The light-shielding structure BM (Black Matrix) can be a black matrix material commonly used in display panels, used to absorb and block unwanted light. In the embodiments of this application, the first light-shielding structure BM1 can serve as a bottom light-shielding layer, and the first opening D1 on it serves as a light-transmitting opening. Figure 3 The first sub-sub-pixel 41a is allowed to pass through in the Z direction, ultimately forming a positive viewing angle, i.e., the first viewing angle A. The second opening D2 serves as a non-positive viewing angle light-transmitting opening, exposing the second sub-sub-pixel 41b and the third sub-sub-pixel 41c. The second light-blocking structure BM2 is located above the second opening D2 and is used to block the light emitted by the second sub-sub-pixel 41b and the third sub-sub-pixel 41c that propagates in the positive viewing angle direction. This forces the light from both sub-sub-pixels to only be able to bypass the second light-blocking structure BM2 from the side and exit laterally, so that the first sub-sub-pixel 41a, the second sub-sub-pixel 41b, and the third sub-sub-pixel 41c emit light in three different viewing angle directions.

[0031] Furthermore, the present invention can further optimize the angle of the lateral emitted light rays of the second sub-sub-pixel 41b and the third sub-sub-pixel 41c by adjusting the width and position of the second light-shielding structure BM2 and its relative relationship with the first light-shielding structure BM1.

[0032] Based on the above embodiments, in order to further optimize the viewing angle range and energy efficiency, this application also defines the size and position of each structure. Along the first direction ( Figure 3 (As shown in the X direction), the width W1 of the second light-shielding structure BM2 is smaller than the width W2 of the second opening D2, i.e., W1 < W2. Wherein, in the first direction ( Figure 3 The plane (shown in the X direction) is parallel to the plane of the substrate 20. This dimensional relationship ensures that the second light-shielding structure BM2 cannot completely block the entire second opening D2, thus leaving sufficient gaps on both sides of the second light-shielding structure BM2, which facilitates the lateral light emission of the second sub-sub-pixel 41b and the third sub-sub-pixel 41c. If W1 is greater than or equal to W2, the lateral light may be completely blocked, making side-view display impossible.

[0033] More preferably, along the first direction ( Figure 3 As shown in the X direction), the difference between the width W2 of the second opening D2 and the width W1 of the second light-shielding structure BM2 is 1 μm to 3 μm, that is, W2 - W1 ≈ 1 μm to 3 μm, and in the first direction ( Figure 3 The misalignment in the X direction (as shown in the middle X direction) is 0 μm to 2 μm. Here, the misalignment refers to the offset in the X direction between the centerline of the second light-shielding structure BM2 and the centerline of the second opening D2. By precisely controlling the width difference and the misalignment, this invention can finely adjust the deflection angle and range of the second viewing angle B and the third viewing angle C to meet the needs of different application scenarios. For example, in automotive applications, it can precisely control the direction of light projection onto specific positions of the driver and passenger.

[0034] Based on the above embodiments, in order to further improve the utilization rate and directionality of light, this application also introduces a lens structure. Figure 5 for Figure 1 A cross-sectional view of another display panel provided along the AA' direction, for reference. Figure 5 The display panel 200 further includes a first lens 51, disposed on the light-emitting side of the first sub-sub-pixel 41a and located within the first opening D1, for converging the light emitted from the first sub-sub-pixel 41a to a first viewing angle A for emission. And / or, the display panel 200 further includes a second lens 52, disposed on the lateral light-emitting side of the second sub-sub-pixel 41b and at least partially surrounding the second light-shielding structure BM2, for deflecting the light emitted from the second sub-sub-pixel 41b along a second viewing angle B. And / or, the display panel 200 further includes a third lens 53, disposed on the lateral light-emitting side of the third sub-sub-pixel 41c and at least partially surrounding the second light-shielding structure BM2, for deflecting the light emitted from the third sub-sub-pixel 41c along a third viewing angle C. Thus, by adding lenses, the brightness and light emission efficiency at each emission angle are further improved. It should be noted that the lens can be a transparent resin layer with a specific curvature, which changes the propagation path of light through the principle of refraction.

[0035] In this embodiment, reference Figure 5 The first lens 51, the second lens 52 and the third lens 53 are all convex lenses. The convex surface of the first lens 51 faces away from the first sub-sub-pixel 41a, that is, the convex surface faces upward. This structure can cause light to converge when it passes through the convex lens, and concentrate the light energy towards the front (first viewing angle A), thereby improving the brightness and contrast of the front viewing angle.

[0036] The convex surface of the second lens 52 faces the side closer to the second sub-sub-pixel 41b, and the convex surface of the third lens 53 faces the side closer to the third sub-sub-pixel 41c, i.e., the convex surface faces downward. Through the downward convex structure and the combined position of the second lens 52 and the third lens 53 arranged laterally around the second light-shielding structure BM2, the light rays incident from the side can be collimated, so that the originally divergent light rays can be emitted to the side (second viewing angle B, third viewing angle C) at a more concentrated angle, thereby improving the brightness and clarity of the side viewing angle.

[0037] Figure 6 for Figure 1 A cross-sectional view of another display panel provided along the AA' direction is shown. Based on the above embodiment, in order to avoid affecting the light output from the main viewing angle and ensure effective deflection of lateral light, reference is made. Figure 5 and Figure 6 Structurally, along the direction perpendicular to the plane of the substrate 20, the second lens 52 overlaps with the light-shielding area of ​​the first light-shielding structure BM1; and / or, the third lens 53 overlaps with the light-shielding area of ​​the first light-shielding structure BM1. It should be noted that the second lens 52 and the third lens 53 are not in a suspended state, as... Figure 5 As shown, it can be supported by a planarization layer PLN, or, as... Figure 6 As shown, it can also be mounted on the first light-shielding structure BM1 and supported by a planarization layer PLN. The black matrix, as a rigid inorganic or organic light-shielding layer, provides a stable physical base for the lens, effectively reducing the risk of lens deformation or displacement caused by temperature changes or mechanical stress, thereby extending device lifespan and ensuring optical consistency.

[0038] This application places the second lens 52 and the third lens 53 above the first light-shielding structure BM1. On the one hand, this helps to accurately capture large-angle lateral light rays that are originally blocked by the first light-shielding structure BM1 itself or leak from its edge gaps. After being refracted by the second lens 52 and the third lens 53, these rays can be converged and deflected to a preset side viewing angle (such as the second viewing angle B and the third viewing angle C), thereby significantly improving the output brightness and image clarity at the side viewing angle and compensating for the severe brightness attenuation of traditional displays when viewed from the side. On the other hand, the second lens 52 and the third lens 53 can be directly formed above the first light-shielding structure BM1, such as by using existing photolithography or nanoimprinting processes for patterning, without the need for additional support pillars or complex film layers, which helps to simplify the process and reduce production costs.

[0039] Based on the above embodiments, refer to Figure 5When the second lens 52 and the third lens 53 are simultaneously set, they are symmetrically arranged about the second light-shielding structure BM2. This invention employs a symmetrical structure, which, on the one hand, ensures that the left and right side viewing angles (i.e., the second and third viewing angles) exhibit a highly consistent display effect in terms of brightness, chromaticity, and grayscale compared to the frontal viewing angle (the first viewing angle). For example, in in-vehicle displays, this is particularly suitable for scenarios where two people view images side-by-side, such as the driver and passenger simultaneously viewing the display, or in two-player game interfaces and collaborative work environments. It ensures that users on both sides of the second and third viewing angles receive nearly identical visual experiences, thereby avoiding subjective brightness or color deviations caused by differences in viewing angles. On the other hand, the symmetrical structure design allows the same design values ​​for key optical parameters such as the radius of curvature, thickness, and refractive index of the lenses on both sides during the manufacturing process. This facilitates control of the process window and optical simulation modeling, thereby reducing development cycle and cost.

[0040] In another embodiment of the present invention, array replication can also be performed based on a symmetrical structure to extend to more perspectives, such as four-view or eight-view, which has advanced portability.

[0041] Furthermore, to ensure the lens's focusing or deflecting effect, the distance between the lens and the light-emitting layer of the sub-sub-pixels can be controlled. Combined with... Figure 5 and Figure 6 As shown, along the direction perpendicular to the plane of the substrate 20 (shown in the Z direction in the figure), the distance between any lens and the light-emitting layer of its corresponding sub-pixel 41 is 3 μm to 10 μm. It should be emphasized that if this distance is too close (<3 μm), the light may not be effectively modulated, and if the distance is too far (>10 μm), it may increase the panel thickness and introduce optical crosstalk between adjacent viewing angles. Therefore, the embodiments of the present invention have determined the optimal distance range through optical simulation and experimental verification to achieve the deflection output of light emitted from the lens at the opposite viewing angle, thereby improving the display effect of the second and third viewing angles.

[0042] Based on the above embodiments, in terms of viewpoint distribution, such as Figure 3 , Figure 5 and Figure 6As shown, the main direction of the first viewing angle is perpendicular to the plane where the substrate 20 is located; the second viewing angle B and the third viewing angle C are located on opposite sides of the first viewing angle A. For example, the second viewing angle B can face the left side of the screen, and the third viewing angle C can face the right side of the screen. Further, in the plane perpendicular to the substrate 20, the deflection angle of the second viewing angle B relative to the first viewing angle is 30° to 60°, and the deflection angle of the third viewing angle C relative to the first viewing angle A is -30° to -60°. By limiting the angle range, this application can ensure that viewers at the side view can clearly see the screen content, while avoiding excessive screen deflection that would degrade display quality. At the same time, the above-mentioned viewing angle range setting is applicable to the actual viewing angles of the driver and passenger relative to the screen in most automotive scenarios.

[0043] Based on the above embodiments, in order to further balance the display brightness under different viewing angles, this application can also optimize the aperture size and light-emitting area, as shown in the reference. Figure 3 , Figure 5 and Figure 6 Along the first direction X, the width W3 of the first opening D1 is greater than the width W2 of the second opening D2; the light-emitting area of ​​the first sub-sub-pixel 41a is greater than the light-emitting area of ​​the second sub-sub-pixel 41b, and the light-emitting area of ​​the second sub-sub-pixel 41b is greater than or equal to the light-emitting area of ​​the third sub-sub-pixel 41c.

[0044] In this embodiment of the invention, the first viewing angle A is a frontal viewing angle, which is usually for viewers at a distance, such as rear passengers, in vehicle applications. The first sub-sub-pixel 41a with a larger light-emitting area and the first light-shielding structure BM1 with a larger opening width can ensure the display brightness of the frontal viewing angle. The left and right side viewing angles (second viewing angle B and third viewing angle C) are usually for viewers at a closer distance, such as the driver and passenger seats. The second sub-sub-pixel 41b and the third sub-sub-pixel 41c with smaller light-emitting areas and opening widths can meet the brightness requirements. This differentiated design helps to reduce overall power consumption and reduce crosstalk between different viewing angles.

[0045] In the embodiments of this application, Figure 7 for Figure 1 A cross-sectional view of another display panel provided along the AA' direction, for reference. Figure 5 and Figure 6 The second lens 52 and the third lens 53 can be centrally symmetrical convex lens structures, whose optical axes are offset relative to the emission center of the sub-sub-pixel. This causes the oblique angle light rays emitted from the second sub-sub-pixel 41b and the third sub-sub-pixel 41c to be converged and deflected in a predetermined specific tilt direction. (Refer to...) Figure 7The second lens 52 and the third lens 53 can also be non-centrally symmetrical convex lens structures, such as eccentric lenses or freeform lenses. Their non-optical axes are further offset relative to the sub-pixel emission center, thereby deflecting the emitted light rays in a preset specific tilt direction to achieve directional light intensity enhancement for specific viewing angles, such as the driver's seat or the passenger seat.

[0046] Compared to centrosymmetric solutions, this invention can also employ a non-centrosymmetric design. This structural design effectively improves off-axis viewing brightness and uniformity while reducing light dissipation and crosstalk in non-target directions, providing greater design freedom for spatial directional projection of multi-view images. In automotive privacy display applications, this structure can flexibly customize the optimal viewing angle according to different seat positions within the cabin, significantly improving the viewing experience for side-seat passengers while reducing unnecessary light interference in the driver's area, thus balancing entertainment and driving safety.

[0047] Based on the same inventive concept, embodiments of the present invention also provide a display device. Figure 8 This is a schematic diagram of a display device provided in an embodiment of the present invention. (In conjunction with...) Figure 8 As shown, the display device 300 includes any of the display panels 200 provided in the above embodiments, as well as a driver chip and a flexible circuit board (not shown in the figure). Therefore, the display device 300 also has the beneficial effects of the display panel 200 in the above embodiments. The similarities can be understood with reference to the explanation of the display panel 200 above, and will not be repeated below.

[0048] The driver chip is electrically connected to the first pixel circuit, second pixel circuit, and third pixel circuit of the display panel 200, and is used to provide a first data signal to the first pixel circuit, a second data signal to the second pixel circuit, and a third data signal to the third pixel circuit. The flexible circuit board is connected to the driver chip and an external signal source, respectively. The driver chip and the flexible circuit board are key hardware components for enabling communication between the display panel and external image signal sources (such as vehicle-mounted hosts or mobile phone processors), ensuring that image data from different viewing angles can be accurately and in real-time transmitted to the corresponding sub-pixels.

[0049] In another embodiment of this example, reference is made to... Figure 8The display device 300 also includes a viewing angle detection module 301 for detecting the viewer's position information. The driver chip is further used to adjust the output of the first data signal, the second data signal, and the third data signal based on the viewer's position information. For example, the viewing angle detection module 301 can be a camera, an infrared sensor, etc., hidden inside the display panel, for real-time capture of the viewer's eye position. Based on this position information, the driver chip can dynamically adjust the display content from different viewing angles. It can even turn off the display content from the second viewing angle to save power when the co-driver is not present, or fine-tune the viewing angle's deflection direction based on the viewer's position movement, thereby improving the display device's intelligence level and user experience.

[0050] The display device 300 provided in this embodiment of the invention can be Figure 8 The vehicle display screen shown can also be any electronic product with display function, including but not limited to the following categories: mobile phones, televisions, laptops, desktop monitors, tablets, digital cameras, smart bracelets, smart glasses, industrial control equipment, medical displays, touch interactive terminals, etc. The embodiments of the present invention do not make any special limitations on this.

[0051] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein. Features of various embodiments of the present invention can be partially or wholly coupled or combined with each other, and can cooperate and be technically driven in various ways. Various obvious changes, readjustments, combinations, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that, include: Substrate; Multiple pixel units are disposed on one side of the substrate, each pixel unit includes multiple sub-pixels, and each sub-pixel includes at least three independent first sub-sub-pixels, second sub-sub-pixels, and third sub-sub-pixels; The first sub-sub-pixel emits light rays from a first viewing angle; the second sub-sub-pixel emits light rays from a second viewing angle; the third sub-sub-pixel emits light rays from a third viewing angle. Wherein, the first perspective, the second perspective, and the third perspective do not overlap at least partially with each other.

2. The display panel according to claim 1, characterized in that, Also includes: A pixel driving circuit layer is located between the substrate and the pixel unit, and includes a first pixel circuit, a second pixel circuit and a third pixel circuit that are independent of each other. The first pixel circuit is connected to the first sub-sub-pixel, the second pixel circuit is connected to the second sub-sub-pixel, and the third pixel circuit is connected to the third sub-sub-pixel.

3. The display panel according to claim 1, characterized in that, It also includes a first light-shielding structure and a second light-shielding structure sequentially disposed on the light-emitting side of the sub-pixel; The first light-shielding structure includes a first opening and a second opening; Along the direction perpendicular to the plane of the substrate, the first opening at least partially overlaps with the first sub-sub-pixel, and the second opening at least partially overlaps with the second light-shielding structure, the second sub-sub-pixel, and the third sub-sub-pixel; the second light-shielding structure is used to block the light from the frontal view of the second sub-sub-pixel and the third sub-sub-pixel.

4. The display panel according to claim 3, characterized in that, Along the first direction, the width of the second light-shielding structure is smaller than the width of the second opening; Wherein, the first direction is parallel to the plane where the substrate is located.

5. The display panel according to claim 4, characterized in that, Along the first direction, the difference between the width of the second opening and the width of the second light-shielding structure is And the misalignment in the first direction is .

6. The display panel according to claim 3, characterized in that, Also includes: A first lens is disposed on the light-emitting side of the first sub-sub-pixel and located within the first opening, for converging the light emitted from the first sub-sub-pixel to be emitted from the first viewing angle; And / or, The second lens is disposed on the lateral light-emitting side of the second sub-sub-pixel and at least partially surrounds the second light-shielding structure, for deflecting the light emitted from the second sub-sub-pixel along the second viewing angle. And / or, A third lens is disposed on the lateral light-emitting side of the third sub-sub-pixel and is at least partially surrounding the second light-shielding structure, for deflecting the light emitted from the third sub-sub-pixel along the third viewing angle.

7. The display panel according to claim 6, characterized in that, The first lens, the second lens, and the third lens are all convex lenses. The convex surface of the first lens faces away from the first sub-sub-pixel; the convex surface of the second lens faces closer to the second sub-sub-pixel; and the convex surface of the third lens faces closer to the third sub-sub-pixel.

8. The display panel according to claim 6, characterized in that, Along a direction perpendicular to the plane of the substrate, the second lens overlaps with the light-shielding area of ​​the first light-shielding structure; and / or, the third lens overlaps with the light-shielding area of ​​the first light-shielding structure.

9. The display panel according to claim 6, characterized in that, When the second lens and the third lens are provided simultaneously, the second lens and the third lens are symmetrically arranged with respect to the second light-shielding structure.

10. The display panel according to claim 6, characterized in that, Along the direction perpendicular to the plane of the substrate, the distance between any lens and the light-emitting layer of its corresponding sub-pixel is .

11. The display panel according to claim 1, characterized in that, The principal direction of the first viewpoint is perpendicular to the plane containing the substrate. The second perspective and the third perspective are located on opposite sides of the first perspective.

12. The display panel according to claim 11, characterized in that, In the plane perpendicular to the substrate, the deflection angle of the second viewing angle relative to the first viewing angle is: The deflection angle of the third viewpoint relative to the first viewpoint is... .

13. The display panel according to claim 4, characterized in that, Along the first direction, the width of the first opening is greater than the width of the second opening; The light-emitting area of ​​the first sub-sub-pixel is greater than the light-emitting area of ​​the second sub-sub-pixel, and the light-emitting area of ​​the second sub-sub-pixel is greater than or equal to the light-emitting area of ​​the third sub-sub-pixel.

14. The display panel according to claim 1, characterized in that, The plurality of pixel units are arranged in an array within the display area; the plurality of sub-pixels include red sub-pixels, green sub-pixels and blue sub-pixels.

15. The display panel according to claim 2, characterized in that, The first pixel circuit, the second pixel circuit, and the third pixel circuit respectively receive a first data signal, a second data signal, and a third data signal that are independent of each other.

16. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 15, as well as a driver chip and a flexible circuit board; The driving chip is electrically connected to the first pixel circuit, the second pixel circuit and the third pixel circuit of the display panel, and is used to provide a first data signal to the first pixel circuit, a second data signal to the second pixel circuit and a third data signal to the third pixel circuit; The flexible circuit board is connected to the driver chip and the external signal source, respectively.

17. The display device according to claim 16, characterized in that, Also includes: The viewpoint detection module is used to detect the viewer's position information; The driver chip is also used to adjust the output of the first data signal, the second data signal, and the third data signal according to the viewer's position information.

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