Display panel and display device

Abstract

This application discloses a display panel and display device, belonging to the field of display technology. In the sharing mode, the regular display unit is turned on, and the light emitted from the regular display unit forms a clear and visible image. In the privacy mode, the privacy display unit is turned on, and the regular display unit is turned off. The light emitted from the privacy display unit is emitted through the privacy opening, forming a directional narrow-angle beam that is only visible within a small viewing angle range, preventing others from peeping. In the top view direction of the display panel, the geometric center of the first opening of the dimming layer is offset from the geometric center of the light-emitting opening of the privacy display unit, thereby improving the symmetry of the privacy light effect on the corresponding two sides of the privacy display unit.

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 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 them, which poses 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 and a display device 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, comprising: The light-emitting device layer includes multiple conventional display sections and multiple privacy screen display sections; A privacy light-blocking part is provided on the light-emitting side of the light-emitting device layer. The privacy light-blocking part is provided with a privacy opening, which is correspondingly provided with the privacy display part to narrow the viewing angle of the light emitted by the privacy display part. A dimming layer is disposed on the light-emitting side of the light-emitting device layer. The dimming layer includes a first refractive layer and a second refractive layer. The second refractive layer is disposed on the side of the first refractive layer away from the light-emitting device layer. The first refractive layer has a plurality of first openings. The second refractive layer covers the sidewalls corresponding to the first openings. Wherein, the refractive index of the second refractive layer is greater than that of the first refractive layer, the first opening corresponds to the privacy display, and in the top view of the display panel, at least part of the geometric center of the first opening is offset from the geometric center of the light-emitting opening corresponding to the privacy display.

[0006] Optionally, the first refractive layer is further provided with a plurality of second openings, the second refractive layer covering the sidewalls corresponding to the second openings; wherein, the second openings correspond to the conventional display section, and in the top view of the display panel, at least a portion of the geometric center of the second openings is offset relative to the geometric center of the light-emitting openings corresponding to the conventional display section.

[0007] Optionally, in the top view direction of the display panel, for at least a portion of the privacy display section, the minimum distance between the edge of the first opening and the edge of the light-emitting opening of the privacy display section is a first distance; for at least a portion of the conventional display section, the minimum distance between the edge of the second opening and the edge of the light-emitting opening of the conventional display section is a second distance; wherein, the first distance is less than the second distance.

[0008] Optionally, the display panel includes a plurality of regular pixel groups and a plurality of privacy pixel groups; the regular pixel groups correspond to at least three adjacent regular display units, and the privacy pixel groups correspond to three adjacent privacy display units; wherein, the plurality of first openings correspond one-to-one with the plurality of privacy pixel groups, and the plurality of second openings correspond one-to-one with the plurality of regular pixel groups; in the top view direction of the display panel, the first openings cover the privacy pixel groups, and the second openings cover the regular pixel groups.

[0009] Optionally, the display panel includes a plurality of regular pixel groups and a plurality of privacy pixel groups; the regular pixel groups correspond to at least three adjacent regular display units, and the privacy pixel groups correspond to three adjacent privacy display units; the plurality of first openings correspond one-to-one with the plurality of privacy display units, and the plurality of second openings correspond one-to-one with the plurality of regular display units.

[0010] Optionally, in the top view direction of the display panel, for at least a portion of the privacy pixel group, the occlusion area of ​​the privacy light-blocking part closer to the central region of the privacy pixel group is greater than the occlusion area of ​​the privacy light-blocking part farther from the central region of the privacy pixel group.

[0011] Optionally, in the top view direction of the display panel, for at least a portion of the privacy pixel group, the line connecting the geometric centers of the light-emitting openings of the three privacy display units forms a first virtual triangle, and the line connecting the geometric centers of the three corresponding first openings forms a second virtual triangle; for at least a portion of the regular pixel group, the line connecting the geometric centers of the light-emitting openings of at least three regular display units forms a first virtual polygon, and the line connecting the geometric centers of the corresponding second openings forms a second virtual polygon; wherein, the three vertices of the first virtual triangle are all located outside the second virtual triangle, and the vertices of the first virtual polygon are all located outside the second virtual polygon.

[0012] Optionally, in the top view direction of the display panel, for at least a portion of the privacy pixel group, the line connecting the geometric centers of the light-emitting openings of the three privacy display units forms a first virtual triangle, and the line connecting the geometric centers of the three corresponding first openings forms a second virtual triangle; for at least a portion of the regular pixel group, the line connecting the geometric centers of the light-emitting openings of at least three regular display units forms a first virtual polygon, and the line connecting the geometric centers of the corresponding second openings forms a second virtual polygon; wherein, the three vertices of the first virtual triangle are all located outside the second virtual triangle, and the vertices of the first virtual polygon are all located inside the second virtual polygon.

[0013] Optionally, the plurality of first openings correspond one-to-one with the plurality of privacy display units; wherein, the three privacy display units corresponding to the privacy pixel group include at least a first light-emitting unit and a second light-emitting unit. In the top view direction of the display panel, for at least a portion of the privacy pixel group, the geometric center of the first opening corresponding to the first light-emitting unit is offset away from the central region of the corresponding privacy pixel group relative to the geometric center of the light-emitting opening of the first light-emitting unit, and the geometric center of the first opening corresponding to the second light-emitting unit is offset closer to the central region of the corresponding privacy pixel group relative to the geometric center of the light-emitting opening of the second light-emitting unit.

[0014] Optionally, the first light-emitting part emits blue light, and the second light-emitting part emits red or green light.

[0015] Optionally, the display panel further includes a color filter layer disposed on the light-emitting side of the light-emitting device layer; the color filter layer includes a plurality of first-type color resists and a light-shielding unit, the light-shielding unit being disposed around the first-type color resists, the light-shielding unit having a plurality of first light-shielding openings, the first-type color resists being disposed corresponding to the privacy display section, and the first-type color resists being disposed corresponding to the first light-shielding openings; wherein, the color filter layer is disposed on the side of the privacy light-shielding section near the light-emitting device layer, the dimming layer is disposed on the side of the color filter layer near the light-emitting device layer, and the first light-shielding openings are disposed corresponding to the first openings.

[0016] Optionally, the display panel further includes a color filter layer disposed on the light-emitting side of the light-emitting device layer; the color filter layer includes a plurality of first-type color resists and a light-shielding unit, the light-shielding unit is disposed around the first-type color resists, the light-shielding unit has a plurality of first light-shielding openings, the first-type color resists are disposed corresponding to the privacy display section, and the first-type color resists correspond to the first light-shielding openings; wherein, the light-shielding unit includes multiple layers of color filters stacked and having different light-transmitting colors, the thickness of the light-shielding unit is greater than the thickness of the first-type color resists, and the dimming layer is disposed on the surface of the color filter layer away from the light-emitting device layer.

[0017] Optionally, the opening area of ​​the first light-shielding opening is larger than the opening area of ​​the first opening.

[0018] Optionally, the privacy shield includes a first shield sub-part and a second shield sub-part, the first shield sub-part being disposed on the side of the second shield sub-part away from the light-emitting device layer; the first shield sub-part having a first privacy opening, the second shield sub-part having a second privacy opening, the first privacy opening and the second privacy opening being correspondingly disposed, and the first privacy opening being correspondingly disposed with the privacy display part.

[0019] Optionally, the dimming layer is disposed on the side of the first light-shielding sub-part near the second light-shielding sub-part.

[0020] Optionally, the opening area of ​​the first privacy screen opening is larger than the opening area of ​​the first opening, and the opening area of ​​the second privacy screen opening is larger than the opening area of ​​the first opening.

[0021] According to a second aspect of this application, a display device is provided, comprising a display panel as described in any of the above.

[0022] In the display panel of this application embodiment, through the above technical solution, in the sharing mode, the regular display unit is turned on, and the light emitted from the regular display unit forms a clear and visible image; in the privacy mode, the privacy display unit is turned on, and the regular display unit is not turned on. The light from the privacy display unit is emitted through the privacy opening, forming a directional narrow-angle beam that is only visible within a small viewing angle range, preventing others from peeping; the refractive index of the second refractive layer of the dimming layer is greater than that of the first refractive layer. On the sidewall of the first opening, when light is emitted from the film layer with a high refractive index to the film layer with a low refractive index, total internal reflection will occur when the incident angle is greater than the critical angle. This changes the propagation direction of the portion of light emitted by the privacy display unit that is directed towards the privacy light shield and has a critical angle to the direction of the corresponding privacy opening, thereby improving the utilization efficiency of the privacy light, increasing the privacy display brightness, and enhancing the privacy display effect. In the top view direction of the display panel, the geometric center of the first opening is relatively offset from the geometric center of the light-emitting opening of the privacy display unit to improve the symmetry of the privacy light effect on the corresponding two sides of the privacy display unit.

[0023] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description 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.

[0024] 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.

[0025] Figure 1 This is a schematic diagram of a first structure of a display panel provided in an exemplary embodiment of this disclosure; Figure 2 yes Figure 1 A magnified view of a portion of region A; Figure 3 This is a schematic diagram of the pixel arrangement of a display panel provided in an exemplary embodiment of this disclosure; Figure 4 This is a schematic diagram of a first pixel structure of a display panel provided in an exemplary embodiment of this disclosure; Figure 5 This is a schematic diagram of a second pixel structure of a display panel provided in an exemplary embodiment of this disclosure; Figure 6 This is a schematic diagram of a third pixel structure of a display panel provided in an exemplary embodiment of this disclosure; Figure 7This is a schematic diagram of a fourth pixel structure of a display panel provided in an exemplary embodiment of this disclosure; Figure 8 This is a schematic diagram of a fifth pixel structure of a display panel provided in an exemplary embodiment of this disclosure; Figure 9 This is a schematic diagram of a sixth pixel structure of a display panel provided in an exemplary embodiment of this disclosure; Figure 10 This is a schematic diagram of the seventh pixel structure of the display panel provided in an exemplary embodiment of this disclosure; Figure 11 This is a schematic diagram of the eighth pixel structure of the display panel provided in an exemplary embodiment of this disclosure; Figure 12 This is a schematic diagram of a second structure of the display panel provided in an exemplary embodiment of this disclosure; Figure 13 This is a schematic diagram of a third structure of the display panel provided in an exemplary embodiment of this disclosure; Figure 14 This is a schematic diagram of a fourth structure of the display panel provided in an exemplary embodiment of this disclosure; Figure 15 This is a fifth structural schematic diagram of the display panel provided in an exemplary embodiment of this disclosure; Figure 16 This is a sixth structural schematic diagram of the display panel provided in an exemplary embodiment of this disclosure; Figure 17 This is a seventh structural schematic diagram of the display panel provided in an exemplary embodiment of this disclosure; Figure 18 This is an eighth structural schematic diagram of the display panel provided in an exemplary embodiment of this disclosure; Figure 19 This is a ninth structural schematic diagram of the display panel provided in an exemplary embodiment of this disclosure; Figure 20 This is a schematic diagram of the tenth structure of the display panel provided in an exemplary embodiment of this disclosure; Figure 21 This is an eleventh structural schematic diagram of a display panel provided in an exemplary embodiment of this disclosure; Figure 22 This is a schematic diagram of the overall structure of the display device provided in an exemplary embodiment of this disclosure.

[0026] Explanation of reference numerals in the attached figures: 100. Display panel; 101. Array substrate; 110. Light-emitting device layer; 111. Privacy display section; 112. Conventional display section; 120. Privacy light-shielding section; 121. Privacy opening; 122. First light-shielding sub-section; 123. Second light-shielding sub-section; 124. First privacy opening; 125. Second privacy opening; 130. Dimming layer; 131. First refractive layer; 132. Second refractive layer; 133. First opening; 134. Second opening ; 141. Privacy pixel group; 142. Regular pixel group; 151. First virtual triangle; 152. Second virtual triangle; 153. First virtual polygon; 154. Second virtual polygon; 160. Color filter layer; 161. First type of color resist; 162. Light-shielding unit; 163. First light-shielding opening; 164. Second type of color resist; 165. Color filter layer; 166. First layer; 167. Second layer; Display device 200; Device body 300. Detailed Implementation

[0027] 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.

[0028] In the privacy display, there are two types of display units, including a conventional display unit 112 and a privacy display unit 111. The light-emitting side of the privacy display unit 111 is provided with a corresponding privacy light-blocking part 120, which has a privacy opening 121 to narrow the display light emitted by the privacy display unit 111. The conventional display unit 112, on the other hand, does not have a privacy light-blocking part 120 on its light-emitting side, allowing it to emit display light with a wide viewing angle. In the top view of the display panel 100, the two sides of the privacy display unit 111 correspond to the first side and the second side, respectively. Although the top of the privacy display unit 111 is... There is a privacy light-blocking part 120, but the privacy display parts 111 on the first and second sides are located diagonally above the privacy light-blocking part 120. Other privacy display parts 111 or conventional display parts 112 may be set around the privacy display part 120, or the distance between the privacy display part 111 and other privacy display parts 111 on both sides may be unequal. As a result, it is difficult to achieve a consistent density and distance between the privacy light-blocking parts 120 on the first and second sides. This leads to an asymmetry in the privacy protection effect or privacy display effect on both sides of the privacy display part 111, which in turn affects the user's visual experience.

[0029] According to the first aspect of this application, referring to Figures 1 to 21This disclosure provides a display panel 100, including a light-emitting device layer 110, a privacy light-shielding portion 120, and a dimming layer 130. The light-emitting device layer 110 includes a plurality of conventional display portions 112 and a plurality of privacy display portions 111. The privacy light-shielding portion 120 is disposed on the light-emitting side of the light-emitting device layer 110, and the privacy light-shielding portion 120 has a privacy opening 121, which is correspondingly disposed with the privacy display portions 111 to narrow the viewing angle of the light emitted by the privacy display portions 111. The dimming layer 130 is disposed on the light-emitting side of the light-emitting device layer 110, and the dimming layer 130 includes a first refractive layer 131. The first refractive layer 131 is disposed on the side of the first refractive layer 131 away from the light-emitting device layer 110. The first refractive layer 131 has a plurality of first openings 133. The second refractive layer 132 covers the sidewalls corresponding to the first openings 133. The refractive index of the second refractive layer 132 is greater than that of the first refractive layer 131. The first openings 133 correspond to the privacy display section 111. In the top view of the display panel 100, at least a portion of the geometric center of the first openings 133 is offset from the geometric center of the light-emitting opening corresponding to the privacy display section 111.

[0030] In shared mode, the regular display unit 112 is turned on, and the light emitted from the regular display unit 112 forms a clear and visible image; in privacy mode, only the privacy display unit 111 is turned on, and the regular display unit 112 is not turned on. The light from the privacy display unit 111 is emitted through the privacy opening 121, forming a directional narrow-angle beam that is only visible within a small viewing angle, preventing others from peeping.

[0031] In the light-emitting direction of the light-emitting device layer 110, the opening size of the first opening 133 gradually increases. The first opening 133 is partially filled with the second refractive layer 132. The refractive index of the second refractive layer 132 in the dimming layer 130 is greater than that of the first refractive layer 131. On the sidewall of the first opening 133, when light travels from a film layer with a higher refractive index to a film layer with a lower refractive index, total internal reflection occurs when the angle of incidence is greater than the critical angle. This changes the propagation direction of the portion of light emitted by the privacy display unit 111 that is directed towards the privacy light shielding unit 120 and has an angle greater than the critical angle, redirecting it towards the corresponding privacy opening 121. This improves the utilization efficiency of the privacy light, increases the brightness of the privacy display, and enhances the privacy display effect. Effect; It is understandable that, in the top view of the display panel 100, the geometric center of the first opening 133 is offset from the geometric center of the light-emitting opening of the privacy display 111. The first side corresponding to the edge of the first opening 133 will be closer to the edge of the light-emitting opening of the privacy display 111, and the second side edge of the first opening 133 relative to the first side will be farther away from the edge of the light-emitting opening of the privacy display 111. Compared with the geometric center of the first opening 133 coinciding with the geometric center of the light-emitting opening of the privacy display 111, in the solution of this application, the amount of light totally reflected by the first side increases and the amount of light totally reflected by the second side decreases, so as to improve the symmetry of the privacy light effect on the corresponding two sides of the privacy display.

[0032] See Figure 2The dashed arrows indicate the pipeline path. The first side of the privacy display 111 is indicated by the symbol B1, and the second side of the privacy display 111 is indicated by the symbol B2. On the first side corresponding to the privacy display 111, the distance between the edge of the light-emitting opening of the privacy display 111 and the edge of the first opening 133 is indicated by the symbol L1; on the second side corresponding to the privacy display 111, the distance between the edge of the light-emitting opening of the privacy display 111 and the edge of the first opening 133 is indicated by the symbol L2. The length of L1 is less than the length of L2. The distance between the corresponding first edge of the light-emitting opening of the privacy display 111 and the corresponding first edge of the first opening 133 is less than the distance between the corresponding second edge of the light-emitting opening of the privacy display 111 and the corresponding second edge of the first opening 133. The distance between them; it can be understood that before the first opening 133 is offset, the area of ​​the privacy display 111 corresponding to the light that can be totally reflected by the side wall of the first side of the first opening 133 is equal to the area of ​​the privacy display 111 corresponding to the light that can be totally reflected by the side wall of the second side of the first opening 133. Taking each as half, when the first opening 133 is offset in the positive direction of the X-axis, the area of ​​the privacy display 111 corresponding to the light that can be totally reflected by the side wall of the first opening 133 is also offset in the positive direction of the X-axis. The first side is represented by L3 and the second side is represented by L4. L3 is greater than L4, that is, in the light emitted by the privacy display 111, the amount of light used by the side wall of the first opening 133 corresponding to the first side is greater than the amount of light used by the side wall of the first opening 133 corresponding to the second side.

[0033] For a privacy display 111, since other privacy display 111s or conventional display 112s may be arranged around the privacy light-blocking part 120, or since the distance between the privacy display 111 and other privacy display 111s on both sides is not equal, the light blocking effect of the privacy light-blocking parts 120 on both sides of the privacy display 111 on the middle privacy display 111 is also different. When the light blocking effect of the privacy light-blocking part 120 on the first side is stronger than that of the privacy light-blocking part 120 on the second side, if the geometric center of the first opening 133 coincides with the geometric center of the light-emitting opening of the privacy display 111, the privacy display brightness on the first side is lower than that on the second side in privacy mode. However, in the solution of this application, the light utilization of the first side is greater than that of the second side, thereby reducing the difference between the privacy display brightness on the first side and the privacy display brightness on the second side.

[0034] When the light-blocking effect of the second-side privacy light-blocking part 120 is stronger than that of the first-side privacy light-blocking part 120, if the geometric center of the first opening 133 coincides with the geometric center of the light-emitting opening of the privacy display part 111, the blocking effect of the wide-angle light on the second side will be stronger than that on the first side. That is, the privacy effect on the second side is stronger than that on the first side. In the solution of this application, the amount of light utilized on the first side is greater than that on the second side, the amount of light deflected on the first side increases, the proportion of small-angle light on the first side increases, and the light that would originally leak from the first side is also deflected to be blocked by the privacy light-blocking part 120 on the first side. Therefore, the wide-angle light on the first side will be blocked more, and the privacy effect on the first side will be enhanced accordingly. Moreover, the enhancement of the privacy effect on the first side will be greater than that on the second side, thereby reducing the difference between the privacy effects on the first and second sides.

[0035] In some embodiments, the light-emitting device layer 110 includes a pixel definition layer and a light-emitting material layer. The pixel definition layer includes a plurality of openings, and the openings are filled with the light-emitting material layer. The light-emitting opening of the privacy display 111 mentioned herein is the opening of the pixel definition layer corresponding to the privacy display 111. The light-emitting opening of the conventional display 112 mentioned later is the opening of the pixel definition layer corresponding to the conventional display 112. The light-emitting opening is a common term in the art and will not be elaborated here.

[0036] In some embodiments, please refer to the following for details. Figure 1 , Figure 4 The first refractive layer 131 is also provided with a plurality of second openings 134, and the second refractive layer 132 covers the sidewalls corresponding to the second openings 134; wherein, the second openings 134 correspond to the conventional display section 112, and in the top view direction of the display panel 100, at least part of the geometric center of the second openings 134 is offset relative to the geometric center of the light-emitting opening corresponding to the conventional display section 112.

[0037] In the light-emitting direction of the light-emitting device layer 110, the opening size of the second opening 134 gradually increases. The second opening 134 is partially filled with the second refractive layer 132. The second opening 134 corresponds to the conventional display unit 112, and its structural design is similar to that of the first opening 133, enabling total internal reflection optimization of the light from the conventional display unit 112. In shared mode, the conventional display unit 112 is turned on. After light enters the second opening 134, due to the greater refractive index of the second refractive layer 132 than the first refractive layer 131, total internal reflection occurs, reflecting the light originally directed towards the non-display area back to the normal emission direction. This improves the light utilization rate of the conventional display unit 112 and enhances the display brightness in shared mode. The geometric center of the second opening 134 is offset from the geometric center of the corresponding light-emitting opening of the conventional display unit 112, similar to the offset principle of the first opening 133. This design can solve the problems of asymmetrical display brightness or asymmetrical display viewing angle attenuation in shared mode.

[0038] Since the spacing between adjacent conventional display units 112 may differ, the corresponding light-shielding structures, such as the light-shielding unit 162 of the color filter layer 160 or the privacy light-shielding part 120, have different light-shielding effects on the two sides of the conventional display unit 112. The side with better light-shielding effect has lower conventional display brightness, and the conventional display viewing angle decays faster as the viewing angle increases. The side with better light-shielding effect has higher conventional display brightness, and the conventional display viewing angle decays slower as the viewing angle increases. The geometric center of the second opening 134 is offset relative to the geometric center of the light-emitting opening of the corresponding conventional display unit 112. The second opening 134 has two opposite sides, namely the third side and the fourth side. The second opening 134 is offset towards the third side. The distance between the edge of the second opening 134 corresponding to the third side and the edge of the light-emitting opening corresponding to the conventional display unit 112 is less than the distance between the edge of the second opening 134 corresponding to the fourth side and the edge of the light-emitting opening corresponding to the conventional display unit 112. Similar to the offset of the first opening 133, the amount of light used by the sidewall of the second opening 134 corresponding to the third side is greater than the amount of light used by the sidewall of the second opening 134 corresponding to the fourth side.

[0039] When the light-blocking effect of the third side is stronger than that of the fourth side, the conventional display brightness of the conventional display unit 112 corresponding to the third side is lower than that corresponding to the fourth side. By shifting the light utilization of the third side, the light utilization of the fourth side will be greater than that of the fourth side, thereby reducing the difference between the conventional display brightness of the third side and the conventional display brightness of the fourth side.

[0040] When the light-blocking effect of the third side is stronger than that of the fourth side, as the viewing angle increases, the conventional display viewing angle attenuation rate of the conventional display unit 112 corresponding to the third side is greater than that of the conventional display viewing angle attenuation rate of the conventional display unit 112 corresponding to the fourth side. By shifting the light utilization of the third side, the amount of light deflected on the third side increases, and the proportion of small-angle light on the third side increases. As the viewing angle increases, a greater proportion of small-angle light is attenuated, thereby reducing the difference between the conventional display viewing angle attenuation rate of the third side and the conventional display viewing angle attenuation rate of the fourth side.

[0041] In some embodiments, please refer to the following for details. Figure 1 , Figure 4 In the top view of the display panel 100, for at least a portion of the privacy display 111, the minimum distance between the edge of the first opening 133 and the edge of the light-emitting opening of the privacy display 111 is a first distance; for at least a portion of the conventional display 112, the minimum distance between the edge of the second opening 134 and the edge of the light-emitting opening of the conventional display 112 is a second distance; wherein, the first distance is less than the second distance.

[0042] Understandably, in the diagram, D1 represents the first distance and D2 represents the second distance. The first distance is the minimum distance between the edge of the first opening 133 and the edge of the light-emitting opening of the privacy display unit 111, and the second distance is the minimum distance between the edge of the second opening 134 and the edge of the light-emitting opening of the conventional display unit 112. The first distance is smaller than the second distance, which is in line with the higher offset requirement of privacy. In privacy mode, the viewing angle will be smaller, and users will be more sensitive to the privacy display effect and privacy effect in all directions. The smaller first distance means that the first opening 133 is closer to the privacy display unit 111, which can make more use of the light from the privacy display unit 111 for total internal reflection, thereby improving the symmetry of the privacy display effect and the privacy effect, and improving the user's viewing experience in privacy mode.

[0043] In some embodiments, please refer to the following for details. Figure 3 , Figure 9 The display panel 100 includes a plurality of regular pixel groups 142 and a plurality of privacy pixel groups 141; the regular pixel groups 142 correspond to at least three adjacent regular display units 112, and the privacy pixel groups 141 correspond to three adjacent privacy display units 111; wherein, a plurality of first openings 133 correspond one-to-one with a plurality of privacy pixel groups 141, and a plurality of second openings 134 correspond one-to-one with a plurality of regular pixel groups 142; in the top view direction of the display panel 100, the first openings 133 cover the corresponding privacy pixel groups 141, and the second openings 134 cover the corresponding regular pixel groups 142.

[0044] It is understandable that at least three adjacent conventional display units 112 (such as red, green, and blue) form a conventional pixel group 142. This paper demonstrates the arrangement in real RGB. If the pixel arrangement is SPR (Sub-pixel Rendering), there will be shared pixels, and in this case, a conventional pixel group 142 will have more than three conventional display units 112. Three adjacent privacy display units 111 (such as red, green, and blue) form a privacy pixel group 141, which conforms to the basic principle of color display. In the figure, R, G, and B represent the red conventional display unit 112, the green conventional display unit 112, and the blue conventional display unit 112, respectively, and r, g, and b represent the red privacy display unit 111, the green privacy display unit 111, and the blue privacy display unit 111, respectively. The first opening 133 covers the entire privacy pixel group 141, enabling the privacy display units 111 of three different colors within the privacy pixel group 141 to... All the light from the first opening 133 is incorporated into the second opening 134 for total internal reflection optimization. Similarly, the light from the three different colored conventional display units 112 within the conventional pixel group 142 can be incorporated into the second opening 134 for total internal reflection optimization. Compared to the design where a single opening only covers a single color light-emitting unit, the process required for a single opening to cover a single color light-emitting unit is more precise, and the number of openings is doubled, resulting in a lower yield. However, by covering the entire pixel group with a set of openings, the process complexity and manufacturing cost are significantly reduced.

[0045] In some embodiments, please refer to the following for details. Figure 3 The arrangement of multiple regular pixel groups 142 and multiple privacy pixel groups 141 can be adjusted according to actual needs. In the figure, the arrangement of regular pixel groups 142 and privacy pixel groups 141 alternates in the X-axis direction and alternates in the Y-axis direction, which is only an example and not a specific limitation.

[0046] In some embodiments, please refer to the following for details. Figure 4 , Figure 5 The display panel 100 includes a plurality of conventional pixel groups 142 and a plurality of privacy pixel groups 141; the conventional pixel group 142 corresponds to at least three adjacent conventional display units 112, and the privacy pixel group 141 corresponds to three adjacent privacy display units 111; a plurality of first openings 133 correspond one-to-one with a plurality of privacy display units 111, and a plurality of second openings 134 correspond one-to-one with a plurality of conventional display units 112.

[0047] Each of the first openings 133 corresponds one-to-one with a plurality of privacy display units 111, and each of the second openings 134 corresponds one-to-one with a plurality of conventional display units 112. Independent optical path control can be performed on a single privacy display unit 111 or a single conventional display unit 112. This one-to-one correspondence allows each opening to more precisely constrain the light emission angle of its corresponding display unit and adjust the beam distribution range according to the actual usage scenario.

[0048] In some embodiments, please refer to the following for details. Figure 10 , Figure 11 In the top view of the display panel 100, for at least a portion of the privacy pixel group 141, the blocking area of ​​the privacy light-blocking part 120 near the center region of the privacy pixel group 141 is larger than the blocking area of ​​the privacy light-blocking part 120 away from the center region of the privacy pixel group 141. In the figure, the central region of the privacy pixel group 141 is represented by the symbol C1. It can be clearly seen that the blocking area of ​​the privacy light-blocking part 120 near the center region of the privacy pixel group 141 is larger, while the blocking area of ​​the privacy light-blocking part 120 away from the center region is smaller. That is, the light-blocking effect in the central region is stronger, thereby further reducing the color mixing of privacy light and improving the purity and color accuracy of the image in privacy mode.

[0049] In some embodiments, please refer to the following for details. Figure 4 , Figure 5 The display panel 100 includes a plurality of conventional pixel groups 142 and a plurality of privacy pixel groups 141; the conventional pixel groups 142 correspond to at least three adjacent conventional display units 112, and the privacy pixel groups 141 correspond to three adjacent privacy display units 111; a plurality of first openings 133 correspond one-to-one with a plurality of privacy display units 111, and a plurality of second openings 134 correspond one-to-one with a plurality of conventional display units 112; in the top view direction of the display panel 100, for at least a portion of the privacy pixel groups 141, the light-emitting openings of the three privacy display units 111 are... The line connecting the centers of the first virtual triangle 151 and the line connecting the three geometric centers corresponding to the first opening 133 are the second virtual triangle 152. For at least a portion of the conventional pixel group 142, the line connecting the geometric centers of at least three light-emitting openings of the conventional display section 112 is the first virtual polygon 153, and the line connecting the geometric centers corresponding to the second opening 134 is the second virtual polygon 154. The three vertices of the first virtual triangle 151 are all located within the second virtual triangle 152, and the vertices of the first virtual polygon 153 are all located within the second virtual polygon 154.

[0050] Please refer to details. Figure 5The three vertices of the first virtual triangle 151 are all located within the second virtual triangle 152, and the vertices of the first virtual polygon 153 are all located within the second virtual polygon 154. In the top view direction of the display panel 100, for at least a portion of the privacy pixel group 141, the geometric center of the first opening 133 is offset away from the center of the corresponding privacy pixel group 141 relative to the geometric center of the light-emitting opening of the privacy display part 111. For at least a portion of the regular pixel group 142, the geometric center of the second opening 134 is offset away from the central region of the corresponding regular pixel group 142 relative to the geometric center of the light-emitting opening of the regular display part 112.

[0051] Understandably, the light-blocking effect of the area between two adjacent privacy pixel groups 141 will be worse. Similarly, the light-blocking effect of the area between two adjacent regular pixel groups 142 will be worse. The closer to the center of the privacy pixel group 141, the better the light-blocking effect. The closer to the center of the regular pixel group 142, the better the light-blocking effect. The farther away from the center of the privacy pixel group 141, the worse the light-blocking effect. The farther away from the center of the regular pixel group 142, the worse the light-blocking effect.

[0052] The three vertices of the first virtual triangle 151 are all located within the second virtual triangle 152, and the vertices of the first virtual polygon 153 are all located within the second virtual polygon 154. The first opening 133 and the second opening 134 are offset towards the side with poor light-blocking effect. The light utilization on the side with good light-blocking effect is more than that on the side with poor light-blocking effect, thereby reducing the difference in privacy display brightness between the side close to the center of the privacy pixel group 141 and the side far from the center of the privacy pixel group 141, and reducing the difference in regular display brightness between the side close to the center of the regular pixel group 142 and the side far from the center of the regular pixel group 142.

[0053] It is understood that the three vertices of the first virtual triangle 151 are all located outside the second virtual triangle 152, and the vertices of the first virtual polygon 153 are all located outside the second virtual polygon 154. In the top view direction of the display panel 100, for at least a portion of the privacy pixel group 141, the geometric center of the first opening 133 is offset towards the center of the privacy pixel group 141 relative to the geometric center of the light-emitting opening of the privacy display part 111. For at least a portion of the regular pixel group 142, the geometric center of the second opening 134 is offset towards the central region of the regular pixel group 142 relative to the geometric center of the light-emitting opening of the regular display part 112.

[0054] In some embodiments, the three vertices of the first virtual triangle 151 are all located outside the second virtual triangle 152, and the vertices of the first virtual polygon 153 are all located outside the second virtual polygon 154. See details below. Figure 4 The three vertices of the first virtual triangle 151 are all located outside the second virtual triangle 152, and the vertices of the first virtual polygon 153 are all located outside the second virtual polygon 154. The first opening 133 and the second opening 134 are offset towards the side with better light-blocking effect. The light utilization on the side with better light-blocking effect will be more than the light utilization on the side with poor light-blocking effect, thereby reducing the difference in the privacy display viewing angle attenuation rate between the side closer to the center of the privacy pixel group 141 and the side farther from the center of the privacy pixel group 141. It also reduces the difference in the conventional display viewing angle attenuation rate between the side closer to the center of the conventional pixel group 142 and the side farther from the center of the conventional pixel group 142. In conventional display, the viewing angle attenuation rate of the entire display panel tends to be consistent. Therefore, for products with high requirements for viewing angle attenuation rate symmetry, this embodiment design is preferred, which can improve the consistency of the overall display viewing angle attenuation rate.

[0055] In some embodiments, please refer to the following for details. Figure 6 , Figure 7 The display panel 100 includes a plurality of conventional pixel groups 142 and a plurality of privacy pixel groups 141; the conventional pixel groups 142 correspond to at least three adjacent conventional display units 112, and the privacy pixel groups 141 correspond to three adjacent privacy display units 111; a plurality of first openings 133 correspond one-to-one with a plurality of privacy display units 111, and a plurality of second openings 134 correspond one-to-one with a plurality of conventional display units 112; in the top view direction of the display panel 100, for at least a portion of the privacy pixel groups 141, the light-emitting openings of the three privacy display units 111 are... The line connecting the centers of the first virtual triangle 151 and the line connecting the three geometric centers corresponding to the first opening 133 are the second virtual triangle 152. For at least a portion of the conventional pixel group 142, the line connecting the geometric centers of at least three light-emitting openings of the conventional display unit 112 is the first virtual polygon 153, and the line connecting the geometric centers corresponding to the second opening 134 is the second virtual polygon 154. The three vertices of the first virtual triangle 151 are all located within the second virtual triangle 152, and the vertices of the first virtual polygon 153 are all located outside the second virtual polygon 154.

[0056] Please refer to details. Figure 7The three vertices of the first virtual triangle 151 are all located within the second virtual triangle 152, and the vertices of the first virtual polygon 153 are all located outside the second virtual polygon 154. In the top view direction of the display panel 100, for at least a portion of the privacy pixel group 141, the geometric center of the first opening 133 is offset away from the center of the corresponding privacy pixel group 141 relative to the geometric center of the light-emitting opening of the privacy display part 111. For at least a portion of the regular pixel group 142, the geometric center of the second opening 134 is offset closer to the central region of the corresponding regular pixel group 142 relative to the geometric center of the light-emitting opening of the regular display part 112. Understandably, the light-blocking effect of the area between two adjacent privacy pixel groups 141 will be worse. Similarly, the light-blocking effect of the area between two adjacent regular pixel groups 142 will be worse. The closer to the center of the privacy pixel group 141, the better the light-blocking effect. The closer to the center of the regular pixel group 142, the better the light-blocking effect. The farther away from the center of the privacy pixel group 141, the worse the light-blocking effect. The farther away from the center of the regular pixel group 142, the worse the light-blocking effect.

[0057] The three vertices of the first virtual triangle 151 are all located within the second virtual triangle 152, and the vertices of the first virtual polygon 153 are all located outside the second virtual polygon 154. The first opening 133 is offset towards the side with poor light-blocking effect, so the light utilization on the side with good light-blocking effect is more than that on the side with poor light-blocking effect, thereby reducing the difference in privacy display brightness between the side closer to the center of the privacy pixel group 141 and the side farther from the center of the privacy pixel group 141. The second opening 134 is offset towards the side with good light-blocking effect, so the light utilization on the side with good light-blocking effect is more than that on the side with poor light-blocking effect, thereby reducing the difference in the normal display viewing angle attenuation rate between the side closer to the center of the normal pixel group 142 and the side farther from the center of the normal pixel group 142.

[0058] In some embodiments, the three vertices of the first virtual triangle 151 are all located outside the second virtual triangle 152, and the vertices of the first virtual polygon 153 are all located inside the second virtual polygon 154. See details below. Figure 6The three vertices of the first virtual triangle 151 are all located outside the second virtual triangle 152, and the vertices of the first virtual polygon 153 are all located inside the second virtual polygon 154. In the top view direction of the display panel 100, for at least a portion of the privacy pixel group 141, the geometric center of the first opening 133 is offset towards the center of the corresponding privacy pixel group 141 relative to the geometric center of the light-emitting opening of the privacy display part 111. For at least a portion of the regular pixel group 142, the geometric center of the second opening 134 is offset away from the central region of the corresponding regular pixel group 142 relative to the geometric center of the light-emitting opening of the regular display part 112.

[0059] The three vertices of the first virtual triangle 151 are all located outside the second virtual triangle 152, and the vertices of the first virtual polygon 153 are all located inside the second virtual polygon 154. The first opening 133 is offset towards the side with better light-blocking effect, so the light utilization on the side with better light-blocking effect will be more than the light utilization on the side with poorer light-blocking effect, thereby reducing the difference in privacy display viewing angle attenuation rate between the side closer to the center of the privacy pixel group 141 and the side farther from the center of the privacy pixel group 141; the second opening 134 is offset towards the side with poorer light-blocking effect. The side with better light-blocking effect will utilize more light than the side with poorer light-blocking effect, thereby reducing the difference in normal display brightness between the side closer to the center of the normal pixel group 142 and the side farther from the center of the normal pixel group 142. In privacy display, users are more concerned about the viewing angle attenuation rate of privacy display, while in normal display, users are more concerned about the display brightness. In this embodiment, the display brightness in all directions is more consistent during normal display. Therefore, for products with high requirements for normal display brightness, this embodiment design can be preferred, which can improve the overall display brightness consistency.

[0060] In some embodiments, please refer to the following for details. Figure 8The display panel 100 includes a plurality of privacy pixel groups 141, each privacy pixel group 141 corresponding to three adjacent privacy display parts 111; a plurality of first openings 133 correspond one-to-one with the plurality of privacy display parts 111; wherein, the three privacy display parts 111 corresponding to each privacy pixel group 141 include at least a first light-emitting part and a second light-emitting part. In the top view direction of the display panel 100, for at least a portion of the privacy pixel groups 141, the geometric center of the first opening 133 corresponding to the first light-emitting part is offset away from the central region of the corresponding privacy pixel group 141 relative to the geometric center of the light-emitting opening of the first light-emitting part, and the geometric center of the first opening 133 corresponding to the second light-emitting part is offset closer to the central region of the corresponding privacy pixel group 141 relative to the geometric center of the light-emitting opening of the second light-emitting part.

[0061] In the figure, C1 represents the central area of ​​the privacy pixel group 141, D1 represents the geometric center of the light-emitting opening of the first light-emitting part, D2 represents the geometric center of the light-emitting opening of the second light-emitting part, E1 represents the geometric center of the first opening 133 corresponding to the first light-emitting part, and E2 represents the geometric center of the first opening 133 corresponding to the second light-emitting part. The privacy pixel group 141 is composed of three privacy display parts 111 of different colors. Since the wavelengths and refractive characteristics of different colors of light are different, their losses and emission angles during propagation are also different. The first opening 133 corresponding to the first light-emitting part is shifted away from the center of the pixel group, and the first opening 133 corresponding to the second light-emitting part is shifted closer to the center of the pixel group. The utilization rate of light and the shifting strategy of the first opening 133 can be adjusted according to the characteristics of different colors of light.

[0062] In some embodiments, please refer to the following for details. Figure 8 The first light-emitting part emits blue light, while the second light-emitting part emits red or green light. Blue light has the shortest wavelength and the largest refractive index, resulting in the greatest loss during propagation and easier scattering. Consequently, the brightness of blue light is usually lower than that of red and green light. Shifting the first opening 133 of the first light-emitting part corresponding to blue light away from the center of the pixel group can increase the total internal reflection of blue light, improve its utilization rate, compensate for its brightness loss, and thus indirectly extend its lifespan. Shifting the first opening 133 of the second light-emitting part corresponding to red or green light closer to the center of the pixel group can improve its privacy protection effect and ensure the overall privacy protection effect of the privacy pixel group 141.

[0063] In some embodiments, please refer to the following for details. Figure 9 Each privacy screen shading part 120 corresponds to one privacy pixel group 141, or, please refer to the following for details. Figure 10 Each privacy light-blocking part 120 corresponds to one privacy display part 111 of one privacy pixel group 141. When one privacy light-blocking part 120 corresponds to one privacy pixel group 141, the privacy light-blocking part 120 covers all three privacy display parts 111 of the entire privacy pixel group 141, which can realize unified control of the overall light emission direction of the pixel group, thereby ensuring the consistency and stability of the privacy effect; when one privacy light-blocking part 120 corresponds to only one privacy display part 111, the optical characteristics of each light-emitting part can be independently controlled, so that the emission angle of blue, red and green light and the privacy performance can be more finely differentiated and adapted.

[0064] In some embodiments, in the top view of the display panel 100, the edge pattern of the first opening 133 corresponds to the edge pattern of the light-emitting opening of the privacy display section 111, for example, both are circular or both are square. Preferably, both are circular, which facilitates precise optical alignment and offset calculation, while reducing manufacturing complexity.

[0065] Similarly, in the top view of the display panel 100, the edge pattern of the second opening 134 corresponds to the edge pattern of the light-emitting opening of the conventional display section 112, for example, both are circular or both are square. Preferably, both are circular.

[0066] In some embodiments, please refer to the following for details. Figure 1 , Figure 14 , Figure 18 The display panel 100 further includes a color filter layer 160, which is disposed on the light-emitting side of the light-emitting device layer 110. The color filter layer 160 includes a plurality of first-type color resists 161 and a light-shielding unit 162. The light-shielding unit 162 is disposed around the first-type color resists 161 and has a plurality of first light-shielding openings 163. The first-type color resists 161 are correspondingly disposed with respect to the privacy display part 111 and the first-type color resists 161 are corresponding to the first light-shielding openings 163. The color filter layer 160 is disposed on the side of the privacy light-shielding part 120 near the light-emitting device layer 110, the dimming layer 130 is disposed on the side of the color filter layer 160 near the light-emitting device layer 110, and the first light-shielding openings 163 are correspondingly disposed with the first openings 133.

[0067] The light-shielding unit 162 can be used to block the circuit and metal reflection light below the light-emitting device layer 110. It can be understood that the color of the first type of color resist 161 corresponds to the color of the privacy display 111. The first type of color resist 161 can be used to filter the light of the privacy display 111, filter stray light, and ensure the color reproduction of the front display. The color filter layer 160 can replace the color control and anti-reflection function of the polarizer. The color filter layer 160 is disposed on the side of the privacy light-shielding part 120 close to the light-emitting device layer 110, and the dimming layer 130 is disposed on the side of the color filter layer 160 close to the light-emitting device layer 110. Since the dimming layer 130 is located between the color filter layer 160 and the light-emitting device layer 110, the light emitted by the privacy display 111 has not yet been absorbed and blocked by the light-shielding unit 162 of the color filter layer 160 or the privacy light-shielding part 120, and the light has not been lost. The sidewall of the first opening 133 can contact more light, thereby improving the light utilization.

[0068] For details, please refer to Figure 1 The color filter layer 160 further includes a plurality of second type color resists 164, and the light-shielding unit 162 is provided with a plurality of second light-shielding openings. The second type color resists 164 are correspondingly disposed with respect to the conventional display unit 112, and the second type color resists 164 correspond to the second light-shielding openings.

[0069] In some embodiments, the thickness of the first refractive layer 131 is 2μm to 4μm, and the angle between the sidewall of the first opening 133 and the first plane is 60°-90°. The first plane is parallel to the display panel. It can be understood that, for example, the first plane can be parallel to the light-emitting surface of the display panel. If the thickness is too thin, such as less than 2μm, the depth of the first opening 133 is insufficient, which cannot provide a sufficient path for total internal reflection of light, resulting in low light utilization and affecting the privacy protection effect and display brightness. If the thickness is too thick, such as greater than 4μm, it will increase the manufacturing difficulty and cost. The angle between the sidewall of the first opening 133 and the first plane directly affects the incident angle of light, and thus affects the total internal reflection effect. If the angle between the sidewall of the first opening 133 and the first plane is less than 60°, the incident angle of the light is too small, making it difficult to deflect the light path vertically. The light is easily blocked by the light-shielding structure, resulting in low light utilization. If the angle between the sidewall of the first opening 133 and the first plane is greater than 90°, the sidewall of the opening is too steep, making the manufacturing process difficult and prone to problems such as sidewall collapse and roughness, which affect the propagation of light.

[0070] In some embodiments, in a top view of the display panel 100, for at least a portion of the conventional display units 112, the minimum distance between the edge of the first opening 133 and the edge of the light-emitting opening of the privacy display unit 111 is less than 2 μm. The extremely close proximity of the first opening 133 to the privacy display unit 111 maximizes the collection of light from the privacy display unit 111, reduces light loss during propagation, improves light utilization, and enhances both privacy and display effects.

[0071] In some embodiments, the refractive index of the first refractive layer 131 is 1.4 to 1.55, and the refractive index of the second refractive layer 132 is 1.6 to 1.8. The difference in refractive index is key to achieving total internal reflection. The refractive index of the second refractive layer 132 is significantly greater than that of the first refractive layer 131, ensuring that when light travels from the second refractive layer 132 to the first refractive layer 131, it easily reaches the critical angle, resulting in total internal reflection and improving light utilization. This refractive index range conforms to the characteristics of existing optical materials, making it easy to obtain suitable materials. For example, the first refractive layer 131 can be made of polymethyl methacrylate with a refractive index of approximately 1.5, and the second refractive layer 132 can be made of polycarbonate with a refractive index of approximately 1.6, reducing material costs and processing difficulty. This is only an example and not a specific limitation.

[0072] In some embodiments, please refer to the following for details. Figure 1 The opening area of ​​the first light-shielding opening 163 is larger than the opening area of ​​the first opening 133. If the opening area of ​​the first opening 133 is larger than the opening area of ​​the first light-shielding opening 163, some light will be blocked by the light-shielding unit 162 and will not be able to escape, resulting in a decrease in brightness. Therefore, by making the opening area of ​​the first light-shielding opening 163 larger than the opening area of ​​the first opening 133, the light can be reflected and guided by the sidewall of the first opening 133 and then smoothly escape from the first light-shielding opening 163.

[0073] Specifically, the ratio of the opening area of ​​the first opening 133 to the opening area of ​​the first light-shielding opening 163 is between 0.5 and 1. Within this ratio range, it ensures that sufficient light is effectively coupled to the first light-shielding opening 163 after reflection from the sidewall, while avoiding a reduction in reflection efficiency or a limitation of the light path due to the first opening 133 being too small, thus achieving a balance between brightness enhancement and privacy protection performance.

[0074] In some embodiments, please refer to the following for details. Figure 12 The dimming layer 130 is disposed between the color filter layer 160 and the film layer containing the privacy shield 120. Before the filtered light enters the privacy shield 120, the light is first controlled by the dimming layer 130 to adjust the emission angle, so that the light is more accurately focused on the front visible area, reducing the amount of light scattered to the side, thereby enhancing the privacy effect.

[0075] Specifically, the ratio of the opening area of ​​the first opening 133 to the opening area of ​​the first light-shielding opening 163 is 0.7 to 1. Since the light has already been blocked by the light-shielding unit 162 of the color filter layer 160, the amount of light has been reduced. At this point, a larger first opening 133 is needed to ensure that sufficient photons enter the dimming layer 130 for angle adjustment, thus making full use of the light.

[0076] In some embodiments, please refer to the following for details. Figure 13 , Figure 17 The dimming layer 130 is disposed on the side of the film layer containing the privacy shield 120 away from the light-emitting device layer 110. The dimming layer 130 performs final regulation of the light to ensure that the angle of the light emitted from the display panel 100 matches the privacy requirements.

[0077] Specifically, the ratio of the opening area of ​​the first opening 133 to the opening area of ​​the privacy opening 121 is 0.5 to 1. Precise matching of the optical path allows for a larger adjustment range of the opening, covering more light and enabling a final brightness enhancement.

[0078] In some embodiments, please refer to the following for details. Figure 15 , Figure 21 The display panel 100 further includes a color filter layer 160, which is disposed on the light-emitting side of the light-emitting device layer 110. The color filter layer 160 includes a plurality of first-type color resists 161 and a light-shielding unit 162. The light-shielding unit 162 is disposed around the first-type color resists 161 and has a plurality of first light-shielding openings 163. The first-type color resists 161 are disposed corresponding to the privacy display part 111 and the first-type color resists 161 correspond to the first light-shielding openings 163. The light-shielding unit 162 includes multiple layers of color filters 165 stacked and having different light-transmitting colors. The thickness of the light-shielding unit 162 is greater than the thickness of the first-type color resists 161. The dimming layer 130 is disposed on the surface of the color filter layer 160 away from the light-emitting device layer 110.

[0079] The light-shielding unit 162 is composed of multiple layers of color filters 165 stacked together, each with a different color transmittance. The stacked color filters 165 effectively block stray light. Because of the stacked layers, the light-shielding unit 162 is thicker than a single light-shielding material, enhancing its absorption capacity for obliquely incident light. Furthermore, the dimming layer 130 is positioned on the side of the color filter layer 160 away from the light-emitting device layer 110. It can be understood that the sidewall of the first opening 133 corresponds to the... The first light-shielding opening 163 is provided, and the end of the first refractive layer 131 near the first opening 133 is covered by multiple layers of color filter 165 near the end of the first light-shielding opening 163. The thickness of the light-shielding unit 162 is greater than the thickness of the first type of color filter 161. The first refractive layer 131 is also raised by the light-shielding unit 162, thereby increasing the length of the sidewall corresponding to the first opening 133. After the sidewall length is increased, more light can be utilized, improving the light utilization rate and improving the privacy effect or privacy display.

[0080] In some embodiments, the thickness of the light-shielding unit 162, which includes a multilayer color filter layer 165 stacked with different light-transmitting colors, is between 1.5 μm and 3.5 μm. This thickness range balances light-shielding performance and process feasibility. If it is too thin, the light-shielding will be insufficient, which will easily lead to light leakage and will also affect the length of the sidewall corresponding to the first opening 133; if it is too thick, it will increase the difficulty of the manufacturing process and affect the yield and cost.

[0081] Specifically, the ratio of the opening area of ​​the first opening 133 to the opening area of ​​the first light-shielding opening 163 is 0.5 to 1. The sidewall of the first opening 133 is longer, so a smaller first opening 133 can be provided to save space.

[0082] In some embodiments, please refer to the following for details. Figure 16 The multilayer color filter layer 165 includes at least a first layer 166 and a second layer 167. The first layer 166 is disposed on the surface of the second layer 167 away from the light-emitting device layer 110. The end of the first layer 166 near the first light-shielding opening 163 wraps around the end of the second layer 167 near the corresponding end of the first light-shielding opening 163.

[0083] During the fabrication of the color filter layer 160, due to limitations in process precision, such as photolithography and etching processes, the end of the color filter layer 165 near the first light-shielding opening 163 is prone to unevenness and rough edges, affecting the smoothness of the sidewall of the first opening 133. This can cause irregular refraction and scattering of light at the edges, affecting the stability of light propagation and thus reducing the privacy protection effect and display clarity. The end of the first layer 166 near the first light-shielding opening 163 wraps around the corresponding end of the second layer 167, which can modify and fix the edge of the second layer 167, avoiding the problem of uneven edges of the second layer 167. This makes the sidewall of the first light-shielding opening 163 smoother, thereby making the sidewall of the first opening 133 smoother, reducing light loss and scattering, improving light utilization and the clarity of the privacy display, while reducing process difficulty and improving product yield.

[0084] It is understood that the multilayer color filter layer 165 also includes a third layer, which is disposed on the surface of the second layer 167 near the light-emitting device layer 110. The end of the first layer 166 near the first light-shielding opening 163 also wraps around the end of the third layer near the corresponding first light-shielding opening 163. In this case, the portion of the first layer 166 filling the first light-shielding opening 163 can serve as a first type of color filter 161.

[0085] In some embodiments, please refer to the following for details. Figure 19 The privacy shielding portion 120 includes a first privacy shielding sub-portion 122 and a second privacy shielding sub-portion 123. The first privacy shielding sub-portion 122 is disposed on the side of the second privacy shielding sub-portion 123 away from the light-emitting device layer 110. The first privacy shielding sub-portion 122 has a first privacy shielding opening 124, and the second privacy shielding sub-portion 123 has a second privacy shielding opening 125. The first privacy shielding opening 124 and the second privacy shielding opening 125 are correspondingly disposed, and the first privacy shielding opening 124 is correspondingly disposed with respect to the privacy display portion 111. The dimming layer 130 is disposed on the side of the first privacy shielding sub-portion 122 close to the second privacy shielding sub-portion 123.

[0086] The layered privacy shielding section 120 can achieve double blocking of light, further improving the privacy effect. The first privacy shielding section 122 is close to the light-emitting side, and the second privacy shielding section 123 is close to the light-emitting device layer 110. The first privacy shielding opening 124 and the second privacy shielding opening 125 form the first privacy shielding opening 121. Light needs to pass through the second privacy shielding opening 125 of the second privacy shielding section 123 and the first privacy shielding opening 124 of the first privacy shielding section 122 in sequence before it can be emitted. This can more accurately limit the light emission angle and reduce side light leakage. The layered structure can distribute the light shielding pressure and avoid the increased process difficulty caused by an excessively thick single light shielding layer. The dimming layer 130 is located between the first light-shielding sub-part 122 and the second light-shielding sub-part 123, which are arranged in layers. It can optimize the total internal reflection of light passing through the second privacy screen opening 125, and reflect the light that was originally directed to the non-opening area of ​​the first light-shielding sub-part 122 to the direction of the first privacy screen opening 124. This not only improves the light utilization rate, but also further restricts the light emission angle. The dimming layer 130 can also increase the vertical distance between the first light-shielding sub-part 122 and the second light-shielding sub-part 123, that is, the distance in the Z-axis direction, thereby extending the propagation path of light in the light-shielding structure, enhancing the angle screening effect, and making the privacy performance more stable and reliable.

[0087] In some embodiments, please refer to the following for details. Figures 18 to 20 The opening area of ​​the first privacy screen opening 124 is larger than the opening area of ​​the first opening 133, and the opening area of ​​the second privacy screen opening 125 is larger than the opening area of ​​the first opening 133.

[0088] The opening areas of the first privacy screen opening 124 and the second privacy screen opening 125 are both larger than the size of the first opening 133. This ensures that the light emitted from the first opening 133 of the dimming layer 130 can pass smoothly through the second privacy screen opening 125 and the first privacy screen opening 124, preventing the light from being blocked by the two light-shielding units 162 and improving the light utilization rate.

[0089] Specifically, the ratio of the opening area of ​​the first opening 133 to the opening area of ​​the first privacy screen opening 124 is 0.7 to 1, and the ratio of the opening area of ​​the first opening 133 to the opening area of ​​the second privacy screen opening 125 is also 0.7 to 1. This size ratio design balances light throughput and privacy protection accuracy: a ratio that is too small will result in a reduction in the effective light-emitting area, reducing display brightness; a ratio that is too large will weaken the light-blocking structure's ability to restrain lateral light, affecting the stability of privacy protection performance.

[0090] In some embodiments, please refer to the following for details. Figure 1The display panel 100 further includes an array substrate 101, which is disposed on the backlight side of the light-emitting device layer 110. The array substrate 101 is used to drive the independent lighting and extinguishing of the conventional display unit 112 and the plurality of privacy display units 111. The specific structure of the array substrate 101 is not the focus of this application and will not be elaborated here.

[0091] In some embodiments, the display panel 100 further includes an encapsulation layer disposed on the light-emitting side surface of the light-emitting device layer 110. The encapsulation layer is used to isolate the device from water and oxygen corrosion, ensuring long-term stability; it can employ an alternating inorganic / organic multilayer stacked structure, possessing both high barrier properties and low stress characteristics. The specific structure of the encapsulation layer is not the focus of this application and will not be elaborated upon here.

[0092] This disclosure also provides a display device 200, for details please refer to [link / reference]. Figure 22 The display device 200 includes any of the aforementioned display panels 100.

[0093] For the specific structure of the display panel 100, please refer to any of the above-described embodiments of the display panel 100 and the accompanying drawings. The display device 200 has all the beneficial effects of the above-described display panel 100, which will not be repeated here.

[0094] Understandably, please refer to the details. Figure 22 The display device 200 also includes a device body 300, which is integrated with the display panel 100. The device body 300 may include a middle frame, frame adhesive, etc., which are only examples and not specific limitations.

[0095] The display device 200 can be widely used in smartphones, laptops, tablets, monitors, vehicle displays, etc. This is just an example and is not a specific limitation.

[0096] 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.

[0097] In the accompanying drawings, the planes containing the X and Y axes represent directions parallel to the light-emitting surface of the display panel 100; the Z axis represents a direction perpendicular to the light-emitting surface of the display panel 100. It should also be noted that the aforementioned representations of the X, Y, and Z axes are merely for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0098] 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.

[0099] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0100] 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, characterized in that, include: The light-emitting device layer includes multiple conventional display sections and multiple privacy screen display sections; A privacy light-blocking part is provided on the light-emitting side of the light-emitting device layer. The privacy light-blocking part is provided with a privacy opening, which is correspondingly provided with the privacy display part to narrow the viewing angle of the light emitted by the privacy display part. A dimming layer is disposed on the light-emitting side of the light-emitting device layer. The dimming layer includes a first refractive layer and a second refractive layer. The second refractive layer is disposed on the side of the first refractive layer away from the light-emitting device layer. The first refractive layer has a plurality of first openings. The second refractive layer covers the sidewalls corresponding to the first openings. Wherein, the refractive index of the second refractive layer is greater than that of the first refractive layer, the first opening corresponds to the privacy display, and in the top view of the display panel, at least part of the geometric center of the first opening is offset from the geometric center of the light-emitting opening corresponding to the privacy display.

2. The display panel according to claim 1, characterized in that, The first refractive layer is further provided with a plurality of second openings, and the second refractive layer covers the sidewalls corresponding to the second openings; Wherein, the second opening corresponds to the conventional display section, and in the top view of the display panel, at least part of the geometric center of the second opening is offset relative to the geometric center of the light-emitting opening corresponding to the conventional display section.

3. The display panel according to claim 2, characterized in that, In the top view of the display panel, for at least a portion of the privacy display section, the minimum distance between the edge of the first opening and the edge of the light-emitting opening of the privacy display section is a first distance; for at least a portion of the conventional display section, the minimum distance between the edge of the second opening and the edge of the light-emitting opening of the conventional display section is a second distance. Wherein, the first distance is less than the second distance.

4. The display panel according to claim 2, characterized in that, The display panel includes multiple conventional pixel groups and multiple privacy pixel groups; The regular pixel group corresponds to at least three adjacent regular display units, and the privacy pixel group corresponds to three adjacent privacy display units; In this configuration, the plurality of first openings correspond one-to-one with the plurality of privacy pixel groups, and the plurality of second openings correspond one-to-one with the plurality of regular pixel groups. In the top-view direction of the display panel, the first openings cover the privacy pixel groups and the second openings cover the regular pixel groups.

5. The display panel according to claim 2, characterized in that, The display panel includes multiple conventional pixel groups and multiple privacy pixel groups; The regular pixel group corresponds to at least three adjacent regular display units, and the privacy pixel group corresponds to three adjacent privacy display units; Each of the first openings corresponds to one of the privacy display units, and each of the second openings corresponds to one of the conventional display units.

6. The display panel according to claim 4 or 5, characterized in that, In the top view of the display panel, for at least a portion of the privacy pixel group, the occlusion area of ​​the privacy light-blocking part closer to the center region of the privacy pixel group is greater than the occlusion area of ​​the privacy light-blocking part farther from the center region of the privacy pixel group.

7. The display panel according to claim 5, characterized in that, In the top view of the display panel, for at least a portion of the privacy pixel group, the line connecting the geometric centers of the light-emitting openings of the three privacy display units forms a first virtual triangle, and the line connecting the geometric centers of the three corresponding to the first opening forms a second virtual triangle. For at least a portion of the regular pixel group, the line connecting the geometric centers of the light-emitting openings of at least three regular display units forms a first virtual polygon, and the line connecting the geometric centers of the corresponding to the second opening forms a second virtual polygon. In this configuration, the three vertices of the first virtual triangle are all located outside the second virtual triangle, and the vertices of the first virtual polygon are all located outside the second virtual polygon.

8. The display panel according to claim 5, characterized in that, In the top view of the display panel, for at least a portion of the privacy pixel group, the line connecting the geometric centers of the light-emitting openings of the three privacy display units forms a first virtual triangle, and the line connecting the geometric centers of the three corresponding to the first opening forms a second virtual triangle. For at least a portion of the regular pixel group, the line connecting the geometric centers of the light-emitting openings of at least three regular display units forms a first virtual polygon, and the line connecting the geometric centers of the corresponding to the second opening forms a second virtual polygon. In this configuration, the three vertices of the first virtual triangle are all located outside the second virtual triangle, and the vertices of the first virtual polygon are all located inside the second virtual polygon.

9. The display panel according to claim 5, characterized in that, Each of the first openings corresponds one-to-one with a plurality of the privacy display units; The privacy pixel group includes at least a first light-emitting part and a second light-emitting part. In the top view of the display panel, for at least a portion of the privacy pixel group, the geometric center of the first opening corresponding to the first light-emitting part is offset away from the central region of the corresponding privacy pixel group relative to the geometric center of the light-emitting opening of the first light-emitting part. The geometric center of the first opening corresponding to the second light-emitting part is offset closer to the central region of the corresponding privacy pixel group relative to the geometric center of the light-emitting opening of the second light-emitting part.

10. The display panel according to claim 9, characterized in that, The first light-emitting part emits blue light, and the second light-emitting part emits red or green light.

11. The display panel according to claim 1, characterized in that, The display panel further includes a color filter layer, which is disposed on the light-emitting side of the light-emitting device layer; The color filter layer includes a plurality of first-type color resists and a light-shielding unit. The light-shielding unit is arranged around the first-type color resists and has a plurality of first light-shielding openings. The first-type color resists are arranged correspondingly to the privacy display unit and the first-type color resists correspond to the first light-shielding openings. The color filter layer is disposed on the side of the privacy shielding portion near the light-emitting device layer, the dimming layer is disposed on the side of the color filter layer near the light-emitting device layer, and the first light-shielding opening is disposed corresponding to the first opening.

12. The display panel according to claim 1, characterized in that, The display panel further includes a color filter layer, which is disposed on the light-emitting side of the light-emitting device layer; The color filter layer includes a plurality of first-type color resists and a light-shielding unit. The light-shielding unit is arranged around the first-type color resists and has a plurality of first light-shielding openings. The first-type color resists are arranged correspondingly to the privacy display unit and the first-type color resists correspond to the first light-shielding openings. The light-shielding unit includes multiple layers of color filters with different light-transmitting colors stacked on top of each other. The thickness of the light-shielding unit is greater than the thickness of the first type of color filter. The dimming layer is disposed on the surface of the color filter layer away from the light-emitting device layer.

13. The display panel according to claim 11 or 12, characterized in that, The opening area of ​​the first light-shielding opening is larger than the opening area of ​​the first opening.

14. The display panel according to claim 11 or 12, characterized in that, The privacy shielding portion includes a first shielding sub-portion and a second shielding sub-portion, wherein the first shielding sub-portion is disposed on the side of the second shielding sub-portion away from the light-emitting device layer; The first light-shielding part is provided with a first privacy screen opening, the second light-shielding part is provided with a second privacy screen opening, the first privacy screen opening and the second privacy screen opening are correspondingly arranged, and the first privacy screen opening is correspondingly arranged with the privacy display part.

15. The display panel according to claim 14, characterized in that, The dimming layer is located on the side of the first light-shielding sub-part that is close to the second light-shielding sub-part.

16. The display panel according to claim 15, characterized in that, The opening area of ​​the first privacy screen opening is larger than the opening area of ​​the first opening, and the opening area of ​​the second privacy screen opening is larger than the opening area of ​​the first opening.

17. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 16.

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