Display panel

Abstract

The application discloses a display panel, and belongs to the technical field of display. The peep-proof sub-pixel comprises a plurality of independently displayable peep-proof display parts. In a transition visual angle range, the peep-proof display light transmittance decreases, the luminance attenuation of the plurality of peep-proof display parts in the peep-proof sub-pixel is inconsistent, the received composite luminance in the transition visual angle direction deviates from the preset luminance, luminance, gray scale or color distortion is generated, the image readability of the transition visual angle is reduced, and the peep-proof effect is enhanced.

Description

Technical Field

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

[0002] With the rapid development of information technology, people's demand for information security is increasing. With the widespread use of electronic devices, the risk of information leakage is also increasing, especially when using electronic devices in public places, such as smartphones and laptops, where the screen content can easily be spied on by those around, posing a serious threat to personal privacy and trade secrets.

[0003] To address this issue, privacy protection technology has emerged. Traditional privacy protection measures include using privacy films, which limit the viewing angle of the screen through optical principles to protect privacy. However, the existing privacy protection effects are still insufficient. Therefore, how to improve the privacy protection effect is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] This application provides a display panel to at least partially solve the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a display panel is provided, including a plurality of privacy-protecting sub-pixels and a plurality of regular sub-pixels, wherein the plurality of privacy-protecting sub-pixels correspond one-to-one with the plurality of regular sub-pixels; The privacy sub-pixel includes multiple privacy display sections with the same light emission color, and each privacy display section is displayed independently.

[0006] Optionally, the display panel includes a plurality of privacy display pixels, each privacy display pixel including a plurality of privacy sub-pixels with different light emission colors; wherein, the plurality of privacy sub-pixels in the privacy display pixels are arranged at intervals along a first direction, and the plurality of privacy display portions in the privacy sub-pixels are arranged at intervals along the first direction.

[0007] Optionally, the display panel includes a plurality of conventional display pixels, each conventional display pixel including a plurality of conventional sub-pixels with different emission colors, the plurality of conventional sub-pixels being arranged along the first direction; wherein, the emission color of the conventional sub-pixel is the same as the emission color of the corresponding privacy sub-pixel.

[0008] Optionally, a plurality of conventional display pixels correspond one-to-one with a plurality of privacy display pixels, wherein the privacy display pixels are disposed on one side of the corresponding conventional display pixels in a second direction, and the first direction intersects the second direction.

[0009] Optionally, the plurality of conventional display pixels correspond one-to-one with the plurality of privacy display pixels, and the privacy display pixels and the corresponding conventional display pixels are arranged along the first direction.

[0010] Optionally, the plurality of privacy display portions of the privacy sub-pixel are respectively disposed on both sides of the corresponding conventional sub-pixel in the first direction.

[0011] Optionally, the display panel includes an array substrate and a pixel definition layer disposed on one side of the array substrate. The pixel definition layer has a plurality of first openings, and the plurality of first openings correspond one-to-one with a plurality of privacy display portions. Insulating isolation portions are provided between the plurality of first openings corresponding to the plurality of privacy display portions of the privacy sub-pixels.

[0012] Optionally, the distance between the surface of the insulating isolation portion away from the array substrate and the array substrate is a first distance, and the distance between the surface of the pixel definition layer away from the array substrate and the array substrate is a second distance; wherein, the first distance is greater than or equal to the second distance.

[0013] Optionally, at least two of the privacy display sub-pixels have different luminous brightness.

[0014] Optionally, the display panel further includes a light-shielding layer disposed on the light-emitting side of the plurality of privacy sub-pixels; the light-shielding layer is provided with a plurality of light-shielding openings, and the plurality of light-shielding openings correspond one-to-one with the plurality of privacy display units.

[0015] In the display panel of this application embodiment, through the above technical solution, within the normal viewing angle or effective viewing angle range, such as 0° to 45°, the brightness attenuation of multiple privacy display units in the privacy sub-pixel tends to be consistent. By making the total brightness of the multiple privacy display units equal to the preset brightness, the user looking directly at the screen still sees a normal privacy display image. Within the wide viewing angle range, such as 60° to 90°, the brightness of the privacy sub-pixel is basically attenuated to 0, and the user cannot see the privacy display image from this viewing angle. Within the transitional viewing angle range, such as 45° to 60°, the transmittance of the privacy display light decreases, but may not be 0. The brightness attenuation of the multiple privacy display units in the privacy sub-pixel is inconsistent. At this time, the composite brightness received in the transitional viewing angle direction will deviate from the preset brightness, resulting in brightness, grayscale, or color distortion, thereby reducing the image readability of the transitional viewing angle and enhancing the privacy effect.

[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 schematic diagram of the film layer structure of the display panel provided in an exemplary embodiment of this application; Figure 2 This is a schematic diagram of a first pixel arrangement of a display panel provided in an exemplary embodiment of this application; Figure 3 This is a schematic diagram of a second pixel arrangement of a display panel provided in an exemplary embodiment of this application; Figure 4 This is a schematic diagram of a third pixel arrangement of a display panel provided in an exemplary embodiment of this application; Figure 5 This is a schematic diagram of a fourth pixel arrangement of a display panel provided in an exemplary embodiment of this application; Figure 6 This is a top view of the display panel provided in an exemplary embodiment of this application; Figure 7 yes Figure 6 A schematic diagram of the cross-section along A1-A2.

[0020] Explanation of reference numerals in the attached figures: 10. Display panel; 11. Array substrate; 12. Encapsulation layer; 13. Planarization layer; 14. Passivation layer; 20. Privacy display pixel; 21. Privacy sub-pixel; 22. Privacy display section; 30. Conventional display pixel; 31. Conventional sub-pixel; 40. Pixel definition layer; 41. First opening; 42. Insulating isolation section; 43. First definition section; 44. Second definition section; D1. First distance; D2. Second distance; 50. Anode; 60. Light-shielding layer; 61. Light-shielding opening; 70. Color filter layer; 71. Color resist; 72. Light-shielding section. 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] According to the first aspect of this application, referring to Figures 1 to 7 This application provides a display panel 10, including a plurality of privacy sub-pixels 21 and a plurality of regular sub-pixels 31, wherein the plurality of privacy sub-pixels 21 correspond one-to-one with the plurality of regular sub-pixels 31; wherein, the privacy sub-pixels 21 include a plurality of privacy display sections 22 with the same light emission color, and each privacy display section 22 is displayed independently.

[0023] Understandably, multiple conventional subpixels 31 are used for normal display, and the conventional subpixels 31 have a wider viewing angle, allowing users to view normally from a wide viewing angle, such as 60° to 90°. Multiple privacy subpixels 21 are used for privacy display, and their viewing angle is narrower, visible within a specific small viewing angle range, such as 0° to 45°, thereby achieving privacy protection. When in sharing mode, at least the conventional subpixels 31 are enabled, allowing users to view normally from a wide viewing angle, such as 60° to 90°. When in privacy privacy mode, only the privacy subpixels 21 are enabled to achieve normal display in narrow viewing angles, thereby achieving privacy protection.

[0024] Multiple privacy-protecting sub-pixels 21 correspond one-to-one with multiple regular sub-pixels 31, achieving pixel-level precise matching, so that the regular display area and the privacy-protecting display area are evenly set, making the regular display and the privacy-protecting display uniform and consistent.

[0025] Within the normal viewing angle or effective viewing angle range, such as 0° to 45°, the brightness attenuation of the multiple privacy display units 22 in the privacy sub-pixel 21 tends to be uniform. By making the total brightness of the multiple privacy display units 22 equal to the preset brightness, the user looking directly at the screen still sees a normal privacy display image. Within the wide viewing angle range, such as 60° to 90°, the brightness of the privacy sub-pixel 21 is basically reduced to 0, and the user cannot see the privacy display image from this angle. Within the transitional viewing angle range, such as 45° to 60°, the transmittance of the privacy display light decreases, but may not be 0. The brightness attenuation of the multiple privacy display units 22 in the privacy sub-pixel 21 is inconsistent. At this time, the light received from the multiple privacy display units 22 in the transitional viewing angle direction and the combined brightness will deviate from the preset brightness, resulting in brightness, grayscale, or color distortion, thereby reducing the image readability of the transitional viewing angle and enhancing the privacy effect.

[0026] It is understood that one privacy sub-pixel 21 may include two, three, or even more privacy display units 22, that is, one privacy sub-pixel 21 is divided into two, three, or even more privacy display units 22 that can be displayed independently. For ease of explanation, this article uses one privacy sub-pixel 21 including two privacy display units 22 as an example. One privacy display pixel 20 may include multiple privacy sub-pixels 21 with different light emission colors. For example, one privacy display pixel 20 may include three privacy sub-pixels 21, and the light emission colors of the three privacy sub-pixels 21 are red, green, and blue, respectively. It is understood that one privacy display pixel 20 may include four privacy sub-pixels 21, and the light emission colors of the four privacy sub-pixels 21 are red, green, blue, and an auxiliary color, respectively. The auxiliary color can be white, yellow, or other colors. The auxiliary color can harmonize with the main color and improve the overall brightness performance in the privacy mode.

[0027] For ease of explanation, this article uses the example of a privacy display pixel 20 composed of three privacy sub-pixels 21 (red, green, and blue) with different emission colors. A privacy sub-pixel 21 includes two privacy display sections 22. The labels r1 and r2 represent the two privacy display sections 22 with red emission colors, the labels g1 and g2 represent the two privacy display sections 22 with green emission colors, and the labels b1 and b2 represent the two privacy display sections 22 with blue emission colors.

[0028] It is understandable that the multiple privacy display units 22 of the regular sub-pixel 31 and the privacy sub-pixel 21 can be connected to different data lines or different driving branches, and the corresponding grayscale data can be written by the driving chip respectively; or, the multiple privacy display units 22 of the regular sub-pixel 31 and the privacy sub-pixel 21 can share some scan lines or power lines, but can be turned on and off independently through different light emission control signals. Without significantly increasing the complexity of the back panel wiring, the multiple privacy display units 22 of the regular sub-pixel 31 and the privacy sub-pixel 21 can be driven and displayed independently.

[0029] It is understood that the independent display of multiple privacy display units 22 of privacy sub-pixels 21 may include any one or a combination of the following: different brightness emission, different grayscale emission, different duty cycle emission, sequential alternating emission, etc. These are just examples and are not specifically limited.

[0030] In some embodiments, at least two of the privacy display units 22 in the privacy sub-pixel 21 have different luminance. For example, a privacy sub-pixel 21 includes two privacy display units 22, where the luminance of one privacy display unit 22 is greater than that of the other. Within the transition viewing angle range, such as 45° to 60°, the brightness of the synthesized privacy display light from the privacy display units 22 deviates from the preset brightness, resulting in brightness, grayscale, or color distortion, thereby reducing the image readability at the transition viewing angle and enhancing the privacy effect. At the same time, the privacy display brightness on the side where the privacy display unit 22 with lower brightness is located is even lower, and the privacy effect is more obvious. However, within the normal viewing angle or effective viewing angle range, such as 0° to 45°, the privacy display brightness attenuation is not significant, and the privacy display light can be displayed normally, allowing for normal image viewing.

[0031] It is understandable that different brightness levels of the privacy display unit 22 can be achieved by emitting light with different duty cycles, emitting light alternately in sequence, and switching on and off the drive signal. This is just an example and not a specific limitation.

[0032] Specifically, at least two of the privacy display units 22 in the privacy sub-pixel 21 have different light emission brightness. For example, a privacy sub-pixel 21 includes two privacy display units 22, one of which emits light and the other has a light emission brightness of 0, i.e., it does not emit light. If one privacy display unit 22 is powered by current or voltage to emit light and the other privacy display unit 22 is powered off to not emit light, the privacy display image is damaged due to the lack of light intensity when viewed from the side. In particular, the side of the privacy display unit 22 that does not emit light cannot synthesize a complete privacy display image. The privacy display image can only be clearly viewed from the frontal view or within the effective viewing angle, thus achieving directional side privacy.

[0033] In some embodiments, please refer to Figure 2 The display panel 10 includes a plurality of privacy display pixels 20, and each privacy display pixel 20 includes a plurality of privacy sub-pixels 21 with different light emission colors; wherein, the plurality of privacy sub-pixels 21 in the privacy display pixels 20 are arranged at intervals along a first direction, and the plurality of privacy display portions 22 in the privacy sub-pixels 21 are arranged at intervals along the first direction.

[0034] Multiple privacy sub-pixels 21 of the privacy display pixel 20 are arranged at intervals along the first direction, which regularizes the overall layout of the privacy display pixel 20, improves the regularity of the screen pixel array, and reduces display color difference and flicker problems caused by pixel arrangement disorder. The unidirectional interval arrangement can unify the optical attenuation law of each privacy sub-pixel 21, so that the privacy effect of different color areas of the whole screen is consistent and there is no difference in local privacy strength. Multiple privacy display units 22 are arranged at intervals along the first direction, so that the multiple privacy display units 22 of a single privacy sub-pixel 21 are distributed along one direction of the screen. For example, the first direction can be the privacy direction, matching the normal angle direction of the user's side view. When the user peeks from a large side view or transitional view, this arrangement structure can make the display units at different positions produce a stepped brightness attenuation, maximize the image distortion effect of the transitional view, and improve the privacy effect.

[0035] It is understood that the first direction is parallel to the extension direction of the X-axis.

[0036] In some embodiments, please refer to Figure 2 The display panel 10 includes a plurality of conventional display pixels 30, each conventional display pixel 30 including a plurality of conventional sub-pixels 31 with different emission colors, the plurality of conventional sub-pixels 31 in the conventional display pixels 30 being arranged along the first direction; wherein, the emission color of the conventional sub-pixel 31 is the same as the emission color of the corresponding privacy sub-pixel 21.

[0037] A conventional display pixel 30 may include multiple conventional sub-pixels 31 with different emission colors. For example, a conventional display pixel 30 may include three conventional sub-pixels 31, and the emission colors of the three conventional sub-pixels 31 are red, green and blue, respectively. It can be understood that a conventional display pixel 30 may include four conventional sub-pixels 31, and the emission colors of the four conventional sub-pixels 31 are red, green, blue and an auxiliary color, respectively. The auxiliary color can be white, yellow and other colors. The auxiliary color can harmonize with the main color and improve the overall brightness performance in the shared mode.

[0038] For ease of explanation, this article uses a conventional display pixel 30 composed of three conventional sub-pixels 31 (red, green, and blue) with different emission colors as an example. The label R represents the conventional sub-pixel 31 with the emission color of red, the label G represents the conventional sub-pixel 31 with the emission color of green, and the label B represents the conventional sub-pixel 31 with the emission color of blue.

[0039] Multiple regular sub-pixels 31 of the regular display pixel 30 and multiple privacy sub-pixels 21 of the privacy display pixel 20 are arranged in the same direction to achieve alignment of the regular sub-pixels 31 and the privacy sub-pixels 21. It can be understood that in the sharing mode, the regular sub-pixels 31 and the privacy sub-pixels 21 can be activated at the same time. By color superposition, the brightness and color saturation of the screen at the normal viewing angle are improved. The regular sub-pixels 31 and the privacy sub-pixels 21 at the corresponding positions have the same color, realizing precise complementary control of pixels of the same color. At the normal viewing angle, the regular sub-pixels 31 and the privacy sub-pixels 21 of the same color emit light together to accurately restore the preset screen brightness and color.

[0040] In some embodiments, please refer to Figure 2 Each of the plurality of conventional display pixels 30 corresponds one-to-one with a plurality of privacy display pixels 20. The privacy display pixel 20 is disposed on one side of the corresponding conventional display pixel 30 in a second direction, where the first direction intersects the second direction. It is understood that the arrangement of the privacy display pixel 20 and the corresponding conventional display pixel 30 in the second direction utilizes the space in that direction, which is beneficial for the arrangement of the privacy display pixel 20 and the corresponding conventional display pixel 30.

[0041] For details, please refer to Figure 2 For multiple sets of privacy display pixels 20 and corresponding regular display pixels 30, the privacy display pixels 20 are located on the same side of the corresponding regular display pixels 30 in the second direction. For example, the privacy display pixels 20 are located above or below the corresponding regular display pixels 30 in the second direction, ensuring that all privacy display pixels 20 are located on the same side of the regular display pixels 30, thereby simplifying the array arrangement rules and reducing the complexity of the driving circuit design.

[0042] It is understood that the second direction is parallel to the extension direction of the Y-axis.

[0043] In some embodiments, please refer to Figure 3 At least two of the privacy display sections 22 of the privacy sub-pixel 21 are of different sizes. The different-sized privacy display sections 22 can form an asymmetric optical attenuation gradient, resulting in more complex brightness distortion and dispersion effects at side viewing angles, thereby further disrupting the viewer's identification of image information and improving privacy security. Simultaneously, an asymmetric privacy display can be formed; for example, two privacy display sections 22 can be respectively located on a first side and a second side of the conventional sub-pixel 31 in the first direction. The size of the privacy display section 22 on the first side is smaller than that on the second side, which helps to increase the brightness of the privacy display on the second side and decrease the brightness of the privacy display on the first side, thereby strengthening the privacy shielding effect on the first side.

[0044] Specifically, the ratio of the luminous area of ​​at least two of the privacy display units 22 is from 0.8:1 to 1.2:1. More preferably, it is from 0.9:1 to 1.1:1. This can both create an asymmetric optical attenuation gradient and improve the problem of uneven brightness when viewed directly due to excessive area difference.

[0045] In some embodiments, the sum of the light-emitting area of ​​the regular sub-pixel 31 and the light-emitting area of ​​the corresponding privacy sub-pixel 21 is S0, the light-emitting area of ​​the regular sub-pixel 31 is S1, and the light-emitting area of ​​the corresponding privacy sub-pixel 21 is S2; the ratio of S1 to S0 is 40% to 70%, and the ratio of S2 to S0 is 30% to 60%; more preferably, the ratio of S1 to S0 is 50% to 65%, and the ratio of S2 to S0 is 35% to 50%. By reasonably allocating the proportion of the light-emitting area of ​​the regular sub-pixel 31 and the privacy sub-pixel 21, sufficient light intensity can be provided for the privacy display while maintaining the brightness of the display in front of the view, thus improving the insufficient display effect in privacy mode caused by the small area of ​​the privacy sub-pixel 21.

[0046] In some embodiments, please refer to Figure 4 , Figure 5 Each of the plurality of conventional display pixels 30 corresponds one-to-one with a plurality of privacy display pixels 20, and the privacy display pixels 20 and their corresponding conventional display pixels 30 are arranged along the first direction. The presence of conventional display pixels 30 between the plurality of privacy display pixels 20 arranged in the first direction increases the spacing between adjacent privacy display pixels 20 in the first direction. This makes the differences in light angle and color shift between adjacent privacy display pixels 20 more significant at transitional viewing angles, further reducing image readability at transitional viewing angles and enhancing the privacy protection effect.

[0047] In some embodiments, please refer to Figure 5 The multiple privacy display sections 22 of the privacy sub-pixel 21 are respectively disposed on both sides of the corresponding conventional sub-pixel 31 in the first direction. With multiple privacy display sections 22 of the same privacy sub-pixel 21 disposed on both sides of the corresponding conventional sub-pixel 31 in the first direction, the difference in light attenuation between the two privacy display sections 22 is greater at transitional viewing angles, which can further enhance screen brightness and grayscale distortion effects, making it impossible for people viewing from the side to recognize the screen content, thus enhancing the privacy effect.

[0048] For details, please refer to Figure 5The distance between adjacent privacy display portions 22 of two adjacent privacy sub-pixels 21 in the first direction is greater than the distance between the regular sub-pixel 31 and its adjacent privacy display portion 22. The distance between adjacent privacy display portions 22 of two adjacent privacy sub-pixels 21 in the first direction is denoted by L1, and the distance between the regular sub-pixel 31 and its adjacent privacy display portion 22 is denoted by L2, where L1 is greater than L2. When adjacent privacy display portions 22 of two adjacent privacy sub-pixels 21 in the first direction emit the same color, the luminescent material can be formed in the same process, and even if there is overflow, it will not affect the luminescent color. However, when a regular sub-pixel 31 and its adjacent privacy display portion 22 emit different colors, a larger spacing is required to reduce the risk of color mixing due to overflow when forming the luminescent material.

[0049] In some embodiments, please refer to Figure 1 , Figure 6 The display panel 10 includes an array substrate 11 and a pixel definition layer 40 disposed on one side of the array substrate 11. The pixel definition layer 40 has a plurality of first openings 41, each corresponding to a plurality of privacy display units 22. An insulating isolation portion 42 is provided between the plurality of first openings 41 corresponding to the plurality of privacy display units 22 of each privacy sub-pixel 21. The plurality of first openings 41 correspond one-to-one with the plurality of privacy display units 22, and the independent light emission channel of each privacy display unit 22 limits the light emission range and light emission angle of each privacy display unit 22, reducing the risk of crosstalk between the light from multiple privacy display units 22. The insulating isolation portion 42 between the first openings 41 corresponding to adjacent privacy display units 22 structurally isolates each privacy display unit 22, ensuring that multiple privacy display units 22 can be driven and displayed independently.

[0050] Specifically, the pixel definition layer 40 is further provided with a plurality of second openings, and the plurality of second openings correspond one-to-one with the plurality of conventional sub-pixels 31.

[0051] In some embodiments, please refer to Figure 7The distance between the surface of the insulating isolation portion 42 away from the array substrate 11 and the array substrate 11 is a first distance D1, and the distance between the surface of the pixel defining layer 40 away from the array substrate 11 and the array substrate 11 is a second distance D2; wherein, the first distance D1 is greater than or equal to the second distance D2. The top surface height of the insulating isolation portion 42 is not lower than the top surface height of the pixel defining layer 40, forming a high-protrusion isolation barrier; the higher insulating isolation portion 42 can block the lateral diffusion and mutual contact of the light-emitting materials of adjacent privacy display portions 22 during the panel manufacturing process, improve the pixel crosstalk problem caused by the adhesion and overlap of light-emitting materials, and ensure the independent molding and independent operation of each privacy display portion 22; it can block the lateral light scattering of adjacent privacy display portions 22 and reduce optical crosstalk.

[0052] It is understood that the height of the top surface of the insulating isolation part 42 is not lower than the height of the top surface of the pixel definition layer 40, which corresponds to the height in the thickness direction of the display panel 10, and the thickness direction of the display panel 10 is parallel to the extension direction of the Z-axis.

[0053] In some embodiments, please refer to Figure 6 , Figure 7 The pixel definition layer 40 includes a plurality of spaced-apart first definition portions 43 and a plurality of spaced-apart second definition portions 44; the first definition portions 43 extend along a first direction, the plurality of first definition portions 43 are spaced-apart along a second direction, the second definition portions 44 extend along the second direction, the plurality of second definition portions 44 are spaced-apart along the first direction, and the first direction intersects the second direction; wherein, the second definition portions 44 are disposed on the side of the corresponding first definition portions 43 away from the array substrate 11, and the hydrophobicity of the end of the insulating isolation portion 42 on the side away from the array substrate 11 is greater than the hydrophobicity of the first definition portions 43.

[0054] The interlaced grid structure formed by the first defining portion 43 and the second defining portion 44 of the inkjet-printed OLED defines the inkjet film formation area of ​​each privacy display 22 and conventional sub-pixels 31, constraining the spreading range of the OLED luminescent ink and improving common defects in inkjet processes such as ink overflow, color mixing, and edge spreading. It can be understood that at the intersection of the first defining portion 43 and the second defining portion 44, the second defining portion 44 is located on the side of the first defining portion 43 away from the array substrate 11. The hydrophobicity of the end of the insulating isolation portion 42 on the side away from the array substrate 11 is greater than that of the first defining portion 43. The poor hydrophobicity of the first defining portion 43, i.e., its high hydrophilicity, is conducive to the ink spreading and flattening at the bottom to form a uniform luminescent film. The high hydrophobicity of the end of the insulating isolation portion 42 can effectively prevent the ink from climbing upward and crossing the isolation barrier, thereby further strengthening the physical isolation and ink barrier effect between adjacent privacy display portions 22, ensuring that each display area forms a film independently and does not interfere with each other.

[0055] For details, please refer to Figure 2 The plurality of privacy display pixels 20 and the plurality of regular display pixels 30 are arranged alternately along a second direction, and the plurality of privacy sub-pixels 21 of the plurality of privacy display pixels 20 and the plurality of regular sub-pixels 31 of the plurality of regular display pixels 30 are also arranged alternately along the second direction. The plurality of privacy sub-pixels 21 and the plurality of regular sub-pixels 31 arranged in the second direction have the same light emission color, that is, in the same column, the plurality of privacy sub-pixels 21 and the plurality of regular sub-pixels 31 have the same light emission color; while in the first direction, the light emission color of two adjacent privacy sub-pixels 21 is the same. The light emission colors of two adjacent regular sub-pixels 31 are different; two adjacent privacy sub-pixels 21 in the first direction are separated by a second defining part 44. The second defining part 44 has higher hydrophobicity than the first defining part 43, so that the inks of different color light emission parts will not mix in the second direction, ensuring that the light emission area boundary of each sub-pixel is clear, thereby improving the color purity and contrast of the display panel 10.

[0056] In some embodiments, please refer to Figure 7 The display panel 10 further includes a plurality of anodes 50 disposed on the array substrate 11, with each anode 50 corresponding to a plurality of conventional sub-pixels 31 and a plurality of privacy display sections 22. The anodes 50 are electrically connected to the source-drain layers of the array substrate 11. Specifically, a portion of the insulating isolation portion 42 is disposed between the anodes 50 corresponding to the plurality of privacy display sections 22 of the same privacy display pixel 20.

[0057] In some embodiments, the insulating isolation portion 42 includes a first portion and a second portion, the second portion being disposed on the side of the first portion away from the array substrate 11, and the hydrophobicity of the second portion being greater than that of the first portion.

[0058] Specifically, the material of the first part is the same as the material of the first defining part 43, and the material of the second part is the same as the material of the second defining part 44. That is, the first part and the first defining part 43 are formed in the same process, and the second part and the second defining part 44 are formed in the same process, thereby simplifying the manufacturing process and reducing production costs.

[0059] In some embodiments, the insulating isolation portion 42 further includes a third portion disposed on the side of the second portion away from the array substrate 11. The hydrophobicity of the third portion is greater than that of the first portion. The surface of the third portion away from the array substrate 11 is the surface of the insulating isolation portion 42 away from the array substrate 11. The first and second portions of the insulating isolation portion 42 are formed in the same layer and with the same material as the first defining portion 43 and the second defining portion 44. The third portion can be formed separately. The total height of the insulating isolation portion 42 is affected by the first and second portions and the third portion. By adjusting the thickness of the third portion, the height of the insulating isolation portion 42 can be flexibly controlled. At the same time, the first and second portions provide a certain height, which reduces the height requirement of the third portion, thereby reducing the manufacturing difficulty.

[0060] In some embodiments, please refer to Figure 1 The display panel 10 further includes a light-shielding layer 60 disposed on the light-emitting side of the plurality of privacy sub-pixels 21; the light-shielding layer 60 is provided with a plurality of light-shielding openings 61, and the plurality of light-shielding openings 61 correspond one-to-one with the plurality of privacy display units 22. The light-shielding openings 61 of the light-shielding layer 60 are used to block the light emitted from the privacy display unit 22 at a wide viewing angle, so as to reduce the risk of being spied on in the wide viewing angle direction and improve the privacy effect; the light-shielding openings 61 of the light-shielding layer 60 are precisely set to correspond to the smallest unit of the privacy display unit 22, so as to achieve precise matching of the dedicated light emission channel of a single privacy display unit 22, allowing the light of the smallest privacy display unit to pass through at the front viewing angle, ensuring high-definition image quality when viewed from the front; and precisely constraining the side-view stray light for the privacy display unit 22, blocking the privacy display light at a wide viewing angle, so as to achieve full-area fine privacy.

[0061] In some embodiments, please refer to Figure 1The display panel 10 further includes a color filter layer 70 disposed on the light-emitting side of the plurality of privacy sub-pixels 21 and the plurality of conventional sub-pixels 31. The color filter layer 70 includes a plurality of color resists 71 and a light-shielding portion 72 disposed between two adjacent color resists 71. Each of the plurality of color resists 71 corresponds one-to-one with the plurality of privacy sub-pixels 21 and the plurality of conventional sub-pixels 31. It is understood that one privacy sub-pixel 21 corresponds to one color resist 71, and one conventional sub-pixel 31 corresponds to one color resist 71. The light emission color of the privacy sub-pixel 21 is the same as the color of its corresponding color resist 71, and the light emission color of the conventional sub-pixel 31 is the same as the color of its corresponding color resist 71. The plurality of privacy display portions 22 of the privacy sub-pixels 21 share one color resist 71.

[0062] In some embodiments, please refer to Figure 1 The color filter layer 70 is disposed between the light-shielding layer 60 and the pixel definition layer 40.

[0063] In some embodiments, please refer to Figure 1 The display panel 10 further includes an encapsulation layer 12, which is disposed on the side of the pixel definition layer 40 away from the array substrate 11. Specifically, the encapsulation layer 12 is disposed between the pixel definition layer 40 and the color filter layer 70.

[0064] In some embodiments, please refer to Figure 1 The display panel 10 further includes a planarization layer 13 disposed between the light-shielding layer 60 and the color filter layer 70.

[0065] In some embodiments, please refer to Figure 1 The display panel 10 further includes a passivation layer 14 disposed on the side of the light-shielding layer 60 away from the array substrate 11.

[0066] 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.

[0067] 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.

[0068] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0069] 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 (10), characterized in that, It includes multiple privacy-protecting sub-pixels (21) and multiple regular sub-pixels (31), with each of the multiple privacy-protecting sub-pixels (21) corresponding to one of the multiple regular sub-pixels (31); The privacy sub-pixel (21) includes multiple privacy display units (22) with the same light emission color, and each privacy display unit (22) is displayed independently.

2. The display panel (10) according to claim 1, characterized in that, The display panel (10) includes a plurality of privacy display pixels (20), and the privacy display pixels (20) include a plurality of privacy sub-pixels (21) with different light emission colors. In the privacy display pixel (20), a plurality of privacy sub-pixels (21) are arranged at intervals along a first direction, and a plurality of privacy display parts (22) in the privacy sub-pixel (21) are arranged at intervals along the first direction.

3. The display panel (10) according to claim 2, characterized in that, The display panel (10) includes a plurality of conventional display pixels (30), each conventional display pixel (30) including a plurality of conventional sub-pixels (31) with different light emission colors, and the plurality of conventional sub-pixels (31) in the conventional display pixels (30) are arranged along the first direction; The light emission color of the regular sub-pixel (31) is the same as the light emission color of the corresponding privacy sub-pixel (21).

4. The display panel (10) according to claim 3, characterized in that, The plurality of conventional display pixels (30) correspond one-to-one with the plurality of privacy display pixels (20), and the privacy display pixels (20) are disposed on one side of the corresponding conventional display pixels (30) in the second direction, the first direction intersecting the second direction.

5. The display panel (10) according to claim 3, characterized in that, The plurality of conventional display pixels (30) correspond one-to-one with the plurality of privacy display pixels (20), and the privacy display pixels (20) and the corresponding conventional display pixels (30) are arranged along the first direction.

6. The display panel (10) according to claim 5, characterized in that, The plurality of privacy display portions (22) of the privacy sub-pixel (21) are respectively disposed on both sides of the corresponding conventional sub-pixel (31) in the first direction.

7. The display panel (10) according to claim 1, characterized in that, The display panel (10) includes an array substrate (11) and a pixel definition layer (40) disposed on one side of the array substrate (11). The pixel definition layer (40) is provided with a plurality of first openings (41), and the plurality of first openings (41) correspond one-to-one with the plurality of privacy display parts (22). Among them, an insulating isolation part (42) is provided between the plurality of first openings (41) corresponding to the plurality of privacy display parts (22) of the privacy sub-pixel (21).

8. The display panel (10) according to claim 7, characterized in that, The distance between the surface of the insulating isolation portion (42) away from the array substrate (11) and the array substrate (11) is a first distance (D1), and the distance between the surface of the pixel definition layer (40) away from the array substrate (11) and the array substrate (11) is a second distance (D2). Wherein, the first distance (D1) is greater than or equal to the second distance (D2).

9. The display panel (10) according to claim 1, characterized in that, At least two of the privacy display units (22) in the privacy sub-pixels (21) have different luminous brightness.

10. The display panel (10) according to claim 1, characterized in that, The display panel (10) also includes a light-shielding layer (60) disposed on the light-emitting side of the plurality of privacy sub-pixels (21). The light-shielding layer (60) is provided with a plurality of light-shielding openings (61), and the plurality of light-shielding openings (61) correspond one-to-one with the plurality of privacy display units (22).

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