Display panel and display device

Abstract

The application discloses a display panel and a display device. A pixel opening includes a first sub-pixel opening and a second sub-pixel opening. A privacy sub-pixel is located in the first sub-pixel opening, and a shared sub-pixel is located in the second sub-pixel opening. The first sub-pixel opening has a first top and a first bottom. The first top is located on a side of the first bottom away from a substrate. The size of the first top along a second direction is smaller than the size of the first bottom along the second direction. Directional reflection and guiding constraints can be formed on a light path, so that light is concentratedly emitted at a small angle to a front of the panel, and efficient privacy protection effect is achieved. The second sub-pixel opening has a second top and a second bottom. The second top is located on a side of the second bottom away from the substrate. The size of the second top along the second direction is greater than the size of the first bottom along the second direction. The light can be guided to naturally diffuse at a full viewing angle. The uniformity of light emission at a wide viewing angle in a shared mode is improved, and the dual requirements of a privacy protection mode and a shared mode are truly achieved.

Description

Technical Field

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

[0002] With the rapid popularization of display technology, display panels have been widely used in various scenarios such as offices, finance, public transportation, and smart homes. Users' dual needs for privacy protection capabilities and shared viewing experience of display panels are becoming increasingly prominent, making privacy-protecting display panels one of the key research and development areas in the current display field.

[0003] Applying a physical privacy film to the surface of the display panel and using the micro-grating structure inside the film to constrain the light angle achieves narrow viewing angle privacy. However, this method significantly reduces the panel's light transmittance and display resolution, and problems such as uneven brightness and severe color distortion are prone to occur when viewing from a wide viewing angle, making it impossible to simultaneously meet the display requirements of narrow viewing angle privacy and wide viewing angle sharing. Summary of the Invention

[0004] This application provides a display panel and a display device that solves the technical problem that existing privacy display panels cannot simultaneously achieve both narrow viewing angles for privacy protection and wide viewing angles for shared display effects.

[0005] This application provides a display panel, comprising: a substrate; a pixel definition layer located on the substrate, the pixel definition layer having pixel openings; and a pixel layer located within the pixel openings, the pixel layer including a plurality of privacy-protected sub-pixels and a plurality of shared sub-pixels arranged adjacent to each other in a first direction, the plurality of privacy-protected sub-pixels being arranged along a second direction, the plurality of shared sub-pixels being arranged along the second direction, the first direction and the second direction being perpendicular to the thickness direction of the substrate, and the first direction intersecting the second direction; wherein, the pixel opening includes a first sub-pixel opening and a second sub-pixel opening, the privacy-protected sub-pixels being located within the first sub-pixel opening, and the shared sub-pixels being located within the second sub-pixel opening; the first sub-pixel opening having a first top and a first bottom, the first top being located on the side of the first bottom facing away from the substrate, and the dimension of the first top along the second direction being smaller than the dimension of the first bottom along the second direction; the second sub-pixel opening having a second top and a second bottom, the second top being located on the side of the second bottom facing away from the substrate, and the dimension of the second top along the second direction being larger than the dimension of the first bottom along the second direction.

[0006] In some embodiments, a plurality of privacy sub-pixels and a plurality of shared sub-pixels are arranged alternately along the first direction; the pixel definition layer further includes: a first pixel barrier extending along the second direction and located between two adjacent rows of privacy sub-pixels and shared sub-pixels; a second pixel barrier extending along the first direction and located between two adjacent shared sub-pixels; and a third pixel barrier extending along the first direction and located between two adjacent privacy sub-pixels.

[0007] In some embodiments, the first pixel barrier and the second pixel barrier intersect to form a plurality of second sub-pixel openings, and the first pixel barrier and the third pixel barrier intersect to form a plurality of first sub-pixel openings.

[0008] In some embodiments, the cross-sectional shape of the second pixel barrier along the second direction and the thickness direction is a regular trapezoid, and the cross-sectional shape of the third pixel barrier along the second direction and the thickness direction is an inverted trapezoid.

[0009] In some embodiments, the method further includes: a color filter layer located on the side of the pixel definition layer opposite to the substrate, the color filter layer including a light-shielding layer and a color resist layer, the light-shielding layer having a light-transmitting opening, and the color resist layer located within the light-transmitting opening; wherein, the light-shielding layer includes a first light-shielding portion, the first light-shielding portion being aligned with the third pixel barrier, and the orthographic projection of the third pixel barrier on the substrate being located within the orthographic projection of the light-shielding portion on the substrate.

[0010] In some embodiments, the cross-sectional shape of the first light-shielding portion along the second direction and the thickness direction is rectangular or inverted trapezoidal.

[0011] In some embodiments, the light-shielding layer further includes a second light-shielding portion, which is aligned with the second pixel barrier, and the orthographic projection of the second light-shielding portion on the substrate is within the orthographic projection of the second pixel barrier on the substrate.

[0012] In some embodiments, the cross-sectional shape of the second light-shielding portion in the second direction and the thickness direction is a regular trapezoid or an inverted trapezoid.

[0013] In some embodiments, a plurality of privacy sub-pixels are arranged in the second direction to form a plurality of privacy pixel units, and a plurality of shared sub-pixels are arranged in the second direction to form a plurality of shared pixel units; the privacy sub-pixels and the shared sub-pixels adjacent in the first direction have the same color.

[0014] This application also provides a display device, including the display panel in any of the above embodiments.

[0015] In the display panel of this application embodiment, the first sub-pixel opening corresponding to the privacy sub-pixel is designed with a first top size smaller than a first bottom size, forming directional reflection and guiding constraint on the light emission path, so that the light is concentrated and emitted at a small angle to the front of the panel, achieving a highly efficient privacy effect; the second sub-pixel opening corresponding to the shared sub-pixel is designed with a second top size larger than a second bottom size, guiding the light to diffuse naturally to the full viewing angle, improving the uniformity of light emission from the wide viewing angle in the shared mode, and truly realizing the dual needs of privacy mode and shared mode.

[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0017] 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 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.

[0018] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0019] Figure 1 This is a top view structural diagram of a display panel provided in some embodiments of this application; Figure 2 yes Figure 1 A cross-sectional view of the central display panel at point A-A1; Figure 3 yes Figure 1 A cross-sectional view of the central display panel at point B-B1; Figure 4 yes Figure 1 Another cross-sectional view of the central display panel at point A-A1; Figure 5 yes Figure 1 Another cross-sectional view of the central display panel at point B-B1; Figure 6 This is a schematic diagram of the structure of a display device provided in some embodiments of this application.

[0020] Explanation of reference numerals in the attached figures: 100. Display panel; 200. Display device; 10. Substrate; 20. Pixel definition layer; 21. First sub-pixel opening; 211. First top; 212. First bottom; 22. Second sub-pixel opening; 221. Second top; 222. Second bottom; 23. First pixel barrier; 24. Second pixel barrier; 25. Third pixel barrier; 30. Pixel layer; 31. Privacy-protected subpixel; 32. Shared subpixel; 40. Color filter layer; 41. Light-blocking layer; 411. First light-blocking part; 412. Second light-blocking part; 413. Light-transmitting opening; 42. Color resist layer; 50. Passivation layer; 60. Anode layer; 70. Packaging structure. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0022] In one embodiment, to enable switching between privacy mode and sharing mode, an additional independent privacy structure is provided above the privacy sub-pixel to achieve narrow-angle privacy.

[0023] However, this method requires adding extra structures to the original layers of the panel, which increases the overall thickness of the panel and the complexity of the structure. This not only increases the weight of the panel and the difficulty of mass production, but also increases the production cost.

[0024] Based on this, this application provides a display panel, including: a substrate; a pixel definition layer located on the substrate, the pixel definition layer having a pixel opening; a pixel layer located within the pixel opening, the pixel layer including a plurality of privacy-protecting sub-pixels and a plurality of shared sub-pixels arranged adjacent to each other in a first direction, the plurality of privacy-protecting sub-pixels arranged along a second direction, the plurality of shared sub-pixels arranged along the second direction, the first direction and the second direction being perpendicular to the thickness direction of the substrate, and the first direction intersecting the second direction; wherein, the pixel opening includes a first sub-pixel opening and a second sub-pixel opening, the privacy-protecting sub-pixels being located within the first sub-pixel opening, and the shared sub-pixels being located within the second sub-pixel opening; the first sub-pixel opening having a first top and a first bottom, the first top being located on the side of the first bottom facing away from the substrate, the dimension of the first top along the second direction being smaller than the dimension of the first bottom along the second direction; the second sub-pixel opening having a second top and a second bottom, the second top being located on the side of the second bottom facing away from the substrate, the dimension of the second top along the second direction being larger than the dimension of the first bottom along the second direction.

[0025] In the display panel of this application embodiment, the first sub-pixel opening corresponding to the privacy sub-pixel is designed with a first top size smaller than a first bottom size, forming directional reflection and guiding constraint on the light emission path, so that the light is concentrated and emitted at a small angle to the front of the panel, achieving a highly efficient privacy effect; the second sub-pixel opening corresponding to the shared sub-pixel is designed with a second top size larger than a second bottom size, guiding the light to diffuse naturally to the full viewing angle, improving the uniformity of light emission from the wide viewing angle in the shared mode, and truly realizing the dual needs of privacy mode and shared mode.

[0026] Furthermore, multiple privacy-protecting sub-pixels and multiple shared sub-pixels are arranged adjacently in the first direction, laying the foundation for dual-mode full-area coverage and precise pixel isolation, ensuring a neat sub-pixel arrangement. Multiple privacy-protecting sub-pixels are neatly arranged along the second direction to form a privacy-protecting sub-pixel row, and multiple shared sub-pixels are neatly arranged along the second direction to form a shared sub-pixel row. Both the first and second directions are perpendicular to the thickness direction (Z direction) of the substrate, and the first and second directions are perpendicularly intersecting each other, ensuring a neat sub-pixel arrangement and adapting to full-area display requirements.

[0027] The structure of the display panel provided in the embodiments of this application will be described below with reference to the accompanying drawings.

[0028] Please see Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a top view schematic diagram of the display panel provided in some embodiments of this application. Figure 2 yes Figure 1 A cross-sectional view of the central display panel at point A-A1. Figure 3 yes Figure 1 A cross-sectional view of the central display panel at point B-B1.

[0029] The display panel 100 includes a substrate 10, a pixel definition layer 20, and a pixel layer 30. The pixel definition layer 20 is located on the substrate 10 and has pixel openings. The pixel layer 30 is located within the pixel openings and includes a plurality of privacy-protecting sub-pixels 31 and a plurality of shared sub-pixels 32 arranged adjacently in a first direction Y. The plurality of privacy-protecting sub-pixels 31 are arranged along a second direction X, and the plurality of shared sub-pixels 32 are arranged along the second direction X. The first direction Y and the second direction X are perpendicular to the thickness direction Z of the substrate 10, and the first direction Y intersects the second direction X. The pixel openings include a first sub-pixel opening 21 and a second sub-pixel opening 22. The privacy-protecting sub-pixels 31 are located within the first sub-pixel opening 21, and the shared sub-pixels 32 are located within the second sub-pixel opening 22. The first sub-pixel opening 21 has a first top 211 and a first bottom 212. The first top 211 is located on the side of the first bottom 212 away from the substrate 10. The dimension W1 of the first top 211 along the second direction X is smaller than the dimension W2 of the first bottom 212 along the second direction X. The second sub-pixel opening 22 has a second top 221 and a second bottom 222. The second top 221 is located on the side of the second bottom 222 away from the substrate 10. The dimension W3 of the second top 221 along the second direction X is larger than the dimension W4 of the first bottom 212 along the second direction X.

[0030] The substrate 10 can be a thin film transistor (TFT) glass substrate, serving as the basic support substrate for the entire display panel 100. A passivation layer 50 (PLN) and an anode layer 60 can be disposed on its surface. The substrate 10 has good insulation and load-bearing properties, providing a stable adhesion base for subsequent functional layers, and is also compatible with the integrated setup of the TFT array.

[0031] The pixel definition layer 20 is tightly attached to the surface of the anode layer 60 of the substrate 10, and the material of the pixel definition layer 20 may include an organic insulating material. The pixel definition layer 20 has a pixel opening for accommodating the pixel layer 30, and the size of the pixel opening is precisely matched with the sub-pixel size of the pixel layer 30, which not only achieves electrical isolation between pixels, but also optically shapes the light emission path of the pixel layer 30.

[0032] The pixel layer 30 is an organic light-emitting diode (OLED) self-emissive layer, which is embedded in the pixel opening and electrically connected to the anode layer 60 on the substrate 10.

[0033] Specifically, the pixel layer 30 includes a plurality of privacy-protecting sub-pixels 31 and a plurality of shared sub-pixels 32 arranged adjacently in the first direction Y, laying the foundation for dual-mode full-area coverage and precise pixel isolation, ensuring that the sub-pixels are arranged neatly, and providing a structural prerequisite for subsequent color-complementary resolution enhancement. The plurality of privacy-protecting sub-pixels 31 are neatly arranged along the second direction X to form a privacy-protecting sub-pixel row, and the plurality of shared sub-pixels 32 are neatly arranged along the second direction X to form a shared sub-pixel row. Both the first direction Y and the second direction X are perpendicular to the thickness direction Z of the substrate 10, and the first direction Y and the second direction X are intersected (e.g., perpendicularly intersecting) to ensure that the sub-pixels are arranged neatly and adapt to the full-area display requirements.

[0034] The pixel openings correspond one-to-one with the sub-pixels of the pixel layer 30. Specifically, they include a first sub-pixel opening 21 adapted to the privacy sub-pixel 31 and a second sub-pixel opening 22 adapted to the shared sub-pixel 32. The privacy sub-pixel 31 is embedded in the first sub-pixel opening 21, and the shared sub-pixel 32 is embedded in the second sub-pixel opening 22, ensuring a tight fit between the sub-pixel and the opening to prevent light leakage.

[0035] Specifically, the first sub-pixel opening 21 has a first top 211 and a first bottom 212. The first top 211 is located on the side of the first bottom 212 away from the substrate 10, that is, the first bottom 212 is close to the anode layer 60 of the substrate 10, and the first top 211 is close to the subsequent encapsulation structure 70. The dimension W1 of the first top 211 along the second direction X is smaller than the dimension W2 of the first bottom 212 along the second direction X, so that the first sub-pixel opening 21 can be in an inverted trapezoidal structure. The angle between the inclined surface of the inverted trapezoidal structure and the thickness direction Z is preferably 30°~60°, which can form a directional constraint on the light emitted by the privacy sub-pixel 31 and guide the light to be concentrated and emitted at a small angle within ±30° on the front of the panel, thereby achieving privacy protection.

[0036] The second sub-pixel opening 22 has a second top 221 and a second bottom 222. The second top 221 is located on the side of the second bottom 222 away from the substrate 10. The dimension W3 of the second top 221 along the second direction X is greater than the dimension W4 of the second bottom 222 along the second direction X, so that the second sub-pixel opening 22 has an overall trapezoidal structure. The angle between its slope and the thickness direction Z is also preferably 30°~60°, which can guide the light of the shared sub-pixel 32 to diffuse naturally to the front of the panel at a full viewing angle of ±60° or more, meeting the needs of multiple people to share viewing.

[0037] In some embodiments, the size difference between the first top 211 and the first bottom 212, and the size difference between the second top 221 and the second bottom 222 are both controlled between 10% and 20%, which ensures the viewing angle adjustment effect and avoids film formation defects caused by excessive opening size deviation.

[0038] In this embodiment, the differentiated design of the first sub-pixel opening 21 and the second sub-pixel opening 22 has the following advantages: 1) It achieves dual-mode hardware-level adaptation, completely solving the core defect of the existing technology that "cannot take into account both privacy protection and sharing"; 2) It adapts to existing mass production processes, taking into account both technological innovation and industrial practicality: the trapezoidal structure, size parameters and bevel angle of the two pixel openings are all within the conventional process range of existing OLED panel photolithography and film deposition processes, without the need for additional production equipment and processes, and can be directly adapted to existing mass production lines; and there is no need to attach additional privacy films or add independent privacy structures, effectively reducing mass production difficulty, improving mass production yield, and controlling production costs, adapting to the needs of thin and light display products; 3) It ensures display integrity and image quality without sacrificing core display performance.

[0039] In some embodiments, the plurality of privacy-protecting sub-pixels 31 and the plurality of shared sub-pixels 32 are arranged alternately along the first direction Y to achieve dual-mode full-area coverage and orderly arrangement of pixels.

[0040] The pixel definition layer 20 further includes a first pixel barrier 23, a second pixel barrier 24, and a third pixel barrier 25. The first pixel barrier 23 extends along the second direction X and is located between two adjacent rows of privacy sub-pixels 31 and shared sub-pixels 32. The second pixel barrier 24 extends along the first direction Y and is located between two adjacent shared sub-pixels 32. The third pixel barrier 25 extends along the first direction Y and is located between two adjacent privacy sub-pixels 31.

[0041] The first pixel barrier 23 is made of the same organic insulating material as the main body of the pixel definition layer 20. It extends continuously along the second direction X and is located between the two adjacent rows of privacy sub-pixels 31 and shared sub-pixels 32. Its height is consistent with the overall height of the pixel definition layer 20. It is mainly used to achieve inter-row isolation of sub-pixels and block optical crosstalk and electrical short circuits between adjacent rows of sub-pixels.

[0042] The second pixel barrier 24 is also made of organic insulating material, extends continuously along the first direction Y, and is located between two adjacent shared sub-pixels 32. Its height is the same as that of the first pixel barrier 23. It is used to achieve isolation between adjacent shared sub-pixels, ensure that each shared sub-pixel 32 is an independent light-emitting unit, avoid crosstalk between shared sub-pixels 32, and form the second sub-pixel opening 22.

[0043] The third pixel barrier 25 uses the same organic insulating material as the other two pixel barriers, extends continuously along the first direction Y, and is located between two adjacent privacy sub-pixels 31. Its height is the same as that of the first and second pixel barriers 24, and it is used to achieve isolation between adjacent privacy sub-pixels. It works in conjunction with the inverted trapezoidal structure of the first sub-pixel opening 21 to form the first sub-pixel opening 21.

[0044] It should be noted that the first pixel barrier 23, the second pixel barrier 24, and the third pixel barrier 25 are set in the same layer and use the same organic insulating material. This material has stable light-blocking performance and can block at least 80% of the emitted light, ensuring that the pixel barrier can effectively achieve optical isolation between sub-pixels, avoid crosstalk, and at the same time not affect the normal light emission of sub-pixels within the pixel opening.

[0045] In some embodiments, the first pixel barrier 23 and the second pixel barrier 24 intersect to form a plurality of second sub-pixel openings 22, and the first pixel barrier 23 and the third pixel barrier 25 intersect to form a plurality of first sub-pixel openings 21.

[0046] The first pixel barrier 23 and the second pixel barrier 24 intersect and enclose each other, forming multiple independent second sub-pixel openings 22. Each second sub-pixel opening 22 corresponds to a shared sub-pixel 32. The enclosing structure can effectively fix the position of the shared sub-pixel 32, preventing sub-pixel offset, while ensuring unobstructed light emission from the shared sub-pixel 32 over a wide viewing angle. The first pixel barrier 23 and the third pixel barrier 25 intersect and enclose each other, forming multiple independent first sub-pixel openings 21. Each first sub-pixel opening 21 corresponds to a privacy-protecting sub-pixel 31. The intersecting enclosing design of the three pixel barriers forms a regular grid structure for the entire pixel definition layer 20, which is compatible with existing photolithography processes and facilitates mass production.

[0047] In some embodiments, the cross-sectional shape of the second pixel barrier 24 along the second direction X and the thickness direction Z is a regular trapezoid, and the cross-sectional shape of the third pixel barrier 25 along the second direction X and the thickness direction Z is an inverted trapezoid. The purpose of designing the cross-sectional shape of the pixel barrier is to form an adaptation structure for the corresponding pixel opening, thereby achieving structural coordination between the pixel barrier and the sub-pixel opening and improving the accuracy of viewing angle control.

[0048] In some embodiments, the display panel 100 further includes a color filter layer 40, which is located on the side of the pixel definition layer 20 away from the substrate 10. The color filter layer 40 includes a light-shielding layer 41 and a color resist layer 42. The light-shielding layer 41 has a light-transmitting opening 413, and the color resist layer 42 is located within the light-transmitting opening 413.

[0049] The color filter layer 40 can be specifically attached to the surface of the pixel definition layer 20 or the surface of the encapsulation structure 70. The light-shielding layer 41 is made of black light-shielding material (such as Black Matrix, BM) and is used to block stray light and improve image contrast. The light-shielding layer 41 has light-transmitting openings 413 that correspond one-to-one with the sub-pixel openings. The size of the light-transmitting openings 413 matches the size of the sub-pixel openings to ensure that light from the sub-pixels can pass through smoothly. The color resist layer 42 fills the light-transmitting openings 413 and uses RGB three-color color resist material (red, green, and blue), which is aligned with the corresponding sub-pixel openings to achieve full-color display and avoid color shift problems.

[0050] The light-shielding layer 41 includes a first light-shielding part 411, which is aligned with the third pixel barrier 25. The orthographic projection of the third pixel barrier 25 on the substrate 10 is located within the orthographic projection of the light-shielding part on the substrate 10. That is, the maximum size of the first light-shielding part 411 is greater than or equal to the maximum size of the third pixel barrier 25, achieving full coverage of the third pixel barrier 25. This forms a double-layer optical constraint between the pixel definition layer 20 and the light-shielding layer 41, further reducing the oblique angle light emission of the privacy sub-pixel 31, improving the privacy protection accuracy of the privacy mode, and preventing stray light from leaking from the edge of the third pixel barrier 25, thus affecting the display quality.

[0051] In some embodiments, the cross-sectional shape of the first light-shielding portion 411 along the second direction X and the thickness direction Z is rectangular or inverted trapezoidal, which can be selected according to actual process requirements and anti-peeping accuracy requirements.

[0052] exist Figure 2 In the first light-shielding part 411, the cross-sectional shape along the second direction X and the thickness direction Z is rectangular.

[0053] Please see Figure 4 , Figure 4 yes Figure 1 Another cross-sectional view of the display panel at A-A1. This embodiment is similar to... Figure 2 The difference in the embodiment lies in the cross-sectional shape of the first light-shielding portion 411. The cross-sectional shape of the first light-shielding portion 411 along the second direction X and the thickness direction Z is an inverted trapezoid.

[0054] It should be noted that, given the same maximum dimension of the first light-shielding portion 411 along the second direction X, the rectangular shape provides better privacy protection than the trapezoidal shape. This is because the rectangular structure has a vertical light-shielding side, which can more directly and thoroughly block the light emitted from the oblique angle of the privacy sub-pixel 31, reducing the probability of light leakage from the edge of the light-shielding portion, and further strengthening the double-layer optical constraint formed in conjunction with the third pixel barrier 25 and the first sub-pixel opening 21. When a rectangle is chosen, its processing technology is simple, alignment difficulty is low, it is compatible with conventional photolithography processes, and it also achieves a better privacy protection effect.

[0055] In some embodiments, the light-shielding layer 41 further includes a second light-shielding portion 412, which is aligned with the second pixel barrier 24, and the orthographic projection of the second light-shielding portion 412 on the substrate 10 is within the orthographic projection of the second pixel barrier 24 on the substrate 10.

[0056] In other words, the maximum size of the second light-blocking part 412 in the second direction X is less than or equal to the maximum size of the second pixel barrier 24 in the second direction X. This can effectively block stray light from the edge of the second pixel barrier 24, improve the image contrast, and avoid blocking the wide-viewing-angle light output of the shared sub-pixel 32, thus ensuring the display effect in the shared mode.

[0057] In some embodiments, the cross-sectional shape of the second light-shielding portion 412 in the second direction X and the thickness direction Z is a regular trapezoid or an inverted trapezoid.

[0058] exist Figure 3 In this embodiment, the cross-sectional shape of the second light-shielding part 412 in the second direction X and the thickness direction Z is an inverted trapezoid.

[0059] Please see Figure 5 , Figure 5 yes Figure 1 Another cross-sectional view of the display panel at B-B1. This embodiment is similar to... Figure 3 The difference lies in the cross-sectional shape of the second light-shielding part 412. The cross-sectional shape of the second light-shielding part 412 in the second direction X and the thickness direction Z is a regular trapezoid.

[0060] When a regular trapezoid is selected, its cross-sectional structure perfectly matches the second pixel barrier 24, which can guide the light of the shared sub-pixel 32 to diffuse to a wide viewing angle and improve the uniformity of light output. When an inverted trapezoid is selected, its processing technology is simpler and it can better block stray light. It can be selected according to actual display needs and process costs. The angle between its slope and the thickness direction Z is controlled at 30°~60°, which is compatible with existing photolithography processes.

[0061] In other embodiments, the cross-sectional shape of the second light-shielding portion 412 in the second direction X and the thickness direction Z may also be rectangular.

[0062] In some embodiments, the plurality of privacy sub-pixels 31 are arranged in the second direction X to form a plurality of privacy pixel units, and the plurality of shared sub-pixels 32 are arranged in the second direction X to form a plurality of shared pixel units.

[0063] See Figure 1 To improve display resolution and color consistency, multiple privacy-protecting sub-pixels 31 are arranged in RGB color order along the second direction X to form multiple complete privacy-protecting pixel units, each of which can achieve independent full-color display. Multiple shared sub-pixels 32 are also arranged in RGB color order along the second direction X to form multiple complete shared pixel units, each corresponding to a privacy-protecting pixel unit.

[0064] In some embodiments, the privacy sub-pixels 31 and the shared sub-pixels 32 that are adjacent in the first direction Y have the same color. That is, the red privacy sub-pixel 31 corresponds to the red shared sub-pixel 32, the green privacy sub-pixel 31 corresponds to the green shared sub-pixel 32, and the blue privacy sub-pixel 31 corresponds to the blue shared sub-pixel 32.

[0065] In shared mode, privacy sub-pixel 31 and shared sub-pixel 32 can emit light simultaneously, or only shared sub-pixel 32 can emit light; in privacy mode, only privacy sub-pixel 31 emits light. By using adjacent complementary pixels of the same color, the display resolution is improved without increasing pixel pitch or compressing the effective light-emitting area, ensuring color consistency in both modes. Simultaneously, the neat arrangement adapts to existing OLED mass production processes, reducing mass production difficulty. This design makes the privacy sub-pixel 31 and shared sub-pixel 32 of the same color complementary, significantly improving the panel's effective display resolution without increasing pixel pitch or compressing the effective light-emitting area. It also ensures color purity and brightness consistency in both privacy and shared modes, avoiding color shift and color mixing issues, and improving overall display quality.

[0066] This application also provides a display device, which includes the display panel in any of the above embodiments.

[0067] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of a display device provided in some embodiments of this application.

[0068] The display device 200 includes a device body and a display panel 100, which can be the display panel 100 in any of the above embodiments. In addition, the device body may include a frame, driving components, power supply, etc., and the display device 200 can be a display terminal such as a mobile phone, tablet, or television, without limitation.

[0069] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0070] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0071] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0072] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display panel (100), characterized in that, include: base(10); A pixel definition layer (20) is located on the substrate (10), and the pixel definition layer (20) has pixel openings; A pixel layer (30) is located inside a pixel opening. The pixel layer (30) includes a plurality of privacy sub-pixels (31) and a plurality of shared sub-pixels (32) arranged adjacent to each other in a first direction. The plurality of privacy sub-pixels (31) are arranged along a second direction, and the plurality of shared sub-pixels (32) are arranged along the second direction. The first direction and the second direction are perpendicular to the thickness direction of the substrate (10), and the first direction intersects the second direction. The pixel opening includes a first sub-pixel opening (21) and a second sub-pixel opening (22). The privacy sub-pixel (31) is located within the first sub-pixel opening (21), and the shared sub-pixel (32) is located within the second sub-pixel opening (22). The first sub-pixel opening (21) has a first top (211) and a first bottom (212). The first top (211) is located on the side of the first bottom (212) away from the substrate (10). The size of the first top (211) along the second direction is smaller than the size of the first bottom (212) along the second direction. The second sub-pixel opening (22) has a second top (221) and a second bottom (222). The second top (221) is located on the side of the second bottom (222) away from the substrate (10). The size of the second top (221) along the second direction is larger than the size of the first bottom (212) along the second direction.

2. The display panel (100) according to claim 1, characterized in that, The plurality of privacy-protecting sub-pixels (31) and the plurality of shared sub-pixels (32) are arranged alternately along the first direction; the pixel definition layer (20) further includes: The first pixel barrier (23) extends along the second direction and is located between the two adjacent rows of the privacy sub-pixels (31) and the shared sub-pixels (32); The second pixel barrier (24) extends along the first direction and is located between two adjacent shared sub-pixels (32); The third pixel barrier (25) extends along the first direction and is located between two adjacent privacy sub-pixels (31).

3. The display panel (100) according to claim 2, characterized in that, The first pixel barrier (23) and the second pixel barrier (24) intersect to form a plurality of second sub-pixel openings, and the first pixel barrier (23) and the third pixel barrier (25) intersect to form a plurality of first sub-pixel openings.

4. The display panel (100) according to claim 2 or 3, characterized in that, The cross-sectional shape of the second pixel barrier (24) along the second direction and the thickness direction is a regular trapezoid, and the cross-sectional shape of the third pixel barrier (25) along the second direction and the thickness direction is an inverted trapezoid.

5. The display panel (100) according to claim 2, characterized in that, Also includes: A color filter layer (40) is located on the side of the pixel definition layer (20) away from the substrate (10). The color filter layer (40) includes a light-shielding layer (41) and a color resist layer (42). The light-shielding layer (41) has a light-transmitting opening (413), and the color resist layer is located inside the light-transmitting opening (413). The light-shielding layer (41) includes a first light-shielding part (411), which is aligned with the third pixel barrier (25). The orthographic projection of the third pixel barrier (25) on the substrate (10) is located within the orthographic projection of the light-shielding part on the substrate (10).

6. The display panel (100) according to claim 5, characterized in that, The first light-shielding part (411) has a rectangular or inverted trapezoidal cross-sectional shape along the second direction and the thickness direction.

7. The display panel (100) according to claim 5, characterized in that, The light-shielding layer (41) further includes a second light-shielding part (412), which is aligned with the second pixel barrier (24). The orthographic projection of the second light-shielding part (412) on the substrate (10) is within the orthographic projection of the second pixel barrier (24) on the substrate (10).

8. The display panel (100) according to claim 7, characterized in that, The cross-sectional shape of the second light-shielding part (412) in the second direction and the thickness direction is a regular trapezoid or an inverted trapezoid.

9. The display panel (100) according to claim 1, characterized in that, The plurality of privacy sub-pixels (31) are arranged in the second direction to form a plurality of privacy pixel units, and the plurality of shared sub-pixels (32) are arranged in the second direction to form a plurality of shared pixel units; The privacy sub-pixels (31) and the shared sub-pixels (32) that are adjacent in the first direction have the same color.

10. A display device (200), characterized in that, Includes the display panel (100) as described in any one of claims 1 to 9.

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