Display panel and display device

Abstract

The application discloses a display panel and a display device. A peep-proof opening corresponds to a part of a peep-proof sub-pixel exposed, the area of the peep-proof opening is smaller than the area of the peep-proof sub-pixel corresponding to the peep-proof opening, and a light shielding layer covers the part of the peep-proof sub-pixel. In the display panel under a top view angle, in the length direction of the peep-proof sub-pixel, the peep-proof sub-pixel has oppositely arranged first and third edges, the distance from the peep-proof opening to the first edge is a first distance, the distance from the peep-proof opening to the third edge is a second distance, the first distance is smaller than the second distance, the peep-proof opening is arranged in a length direction of the peep-proof sub-pixel, and the length direction of the peep-proof sub-pixel has different view angle brightness, so that the peep-proof effect of the third edge is improved on the basis of realizing double-side peep-proof.

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] Screen privacy technology is a solution that uses optical design or electronic control to restrict the content displayed on a screen to be visible only within a specific viewing angle. Its technological background stems from the urgent need for personal privacy protection and information security, especially in public places (such as airports, subways, and offices), where users want to avoid others peeping at their screen content and prevent the leakage of sensitive information.

[0003] Existing organic light-emitting display panels achieve the privacy effect by setting privacy pixels and shared pixels, and only lighting up the privacy pixels in privacy mode. Summary of the Invention

[0004] This application provides a display panel and display device to improve the privacy protection effect on the third side while achieving privacy protection on both sides.

[0005] To achieve the above objectives, according to a first aspect of this application, a display panel is provided, comprising: The light-emitting pixel layer includes shared pixels and privacy pixels, wherein the privacy pixels include multiple privacy sub-pixels; A light-shielding layer is disposed on the light-emitting side of the light-emitting pixel layer. The light-shielding layer has multiple privacy openings, one of which exposes a portion of a privacy sub-pixel. The area of ​​the privacy opening is smaller than the area of ​​the corresponding privacy sub-pixel, and the light-shielding layer covers a portion of the privacy sub-pixel. In the display panel viewed from above, the privacy sub-pixel has a first edge and a third edge arranged opposite to each other along its length. The distance from the privacy opening to the first edge is a first distance, and the distance from the privacy opening to the third edge is a second distance. The first distance is less than the second distance.

[0006] In some embodiments of this application, the privacy sub-pixel has a second edge and a fourth edge disposed opposite to each other in the width direction, and the distance from the privacy opening to the second edge is a third distance, wherein the first distance is less than the third distance and the third distance is less than the second distance.

[0007] In some embodiments of this application, the edge of the privacy opening near the first edge is aligned and overlaps with the first edge.

[0008] In some embodiments of this application, the display panel includes a pixel definition layer, the pixel definition layer is provided with a plurality of first openings, and the privacy sub-pixel is disposed within the first opening; Along the length of the privacy sub-pixel, the first opening has a first sidewall and a third sidewall disposed opposite to each other. The distance from the privacy opening to the first sidewall is a first spacing, and the distance from the privacy opening to the third sidewall is a second spacing. The first spacing is smaller than the second spacing.

[0009] In some embodiments of this application, in the width direction of the privacy sub-pixel, the first opening has a second sidewall and a fourth sidewall disposed opposite to each other, the distance from the privacy opening to the second sidewall is a third spacing, the first spacing is smaller than the third spacing, and the third spacing is smaller than the second spacing.

[0010] In some embodiments of this application, the privacy opening is aligned and overlaps with the edge of the first sidewall.

[0011] In some embodiments of this application, in the display panel viewed from above, the privacy sub-pixel has a first center, the privacy opening has a second center, the first center and the second center are aligned along a first direction, and in the display panel viewed from above, in the first direction, the distance from the edge of the privacy sub-pixel closest to the second center to the second center is less than the distance from the first center to the second center.

[0012] In some embodiments of this application, in the display panel viewed from above, in the first direction, the edge of the privacy sub-pixel closest to the second center and the side of the privacy opening furthest from the first center are arranged to coincide.

[0013] In some embodiments of this application, in the first direction, the maximum distance from the edge of the privacy sub-pixel closest to the second center to the side of the privacy opening furthest from the first center is less than or equal to 15 micrometers.

[0014] In some embodiments of this application, in the display panel viewed from above, the privacy sub-pixel is rectangular, the first edge and the third edge are arranged along the first direction and extend along the second direction, and the length direction of the privacy sub-pixel is the first direction; the privacy opening is rectangular, and the privacy opening includes a first side and a third side arranged opposite to each other along the first direction; In the first direction, the first side is closer to the first edge than the third side, and the distance from the first side to the first edge is less than or equal to 15 micrometers.

[0015] In some embodiments of this application, the first side and the first edge coincide.

[0016] In some embodiments of this application, the width direction of the privacy sub-pixel is a second direction, the privacy sub-pixel has a second edge and a fourth edge disposed opposite to each other, the second edge and the fourth edge are arranged along the second direction and extend along the first direction; the privacy opening includes a second side and a fourth side disposed opposite to each other, the second side and the fourth side are arranged along the second direction and extend along the first direction; In the second direction, the second side is closer to the second edge than the fourth side. The second side and the fourth side are both spaced apart between the second edge and the fourth edge. The distance from the second side to the second edge is less than or equal to 15 micrometers, and the distance from the fourth side to the fourth edge is less than or equal to 15 micrometers.

[0017] In some embodiments of this application, the distance from the second side to the second edge is equal to the distance from the fourth side to the fourth edge.

[0018] In some embodiments of this application, in the first direction, the length of the privacy opening is less than the length of the privacy sub-pixel, the distance from the second center to the first edge is less than the distance from the first center to the second center, and the distance from the side of the privacy opening closest to the first edge to the first edge is less than the distance from the side of the privacy opening furthest from the first edge to the third edge.

[0019] In some embodiments of this application, at a 45-degree viewing angle along the length of the privacy sub-pixel, the light emission brightness of the privacy sub-pixel near the first edge is the first light emission brightness, and the light emission brightness of the privacy sub-pixel near the third edge is the third light emission brightness, wherein the first light emission brightness is greater than the third light emission brightness.

[0020] In some embodiments of this application, at a 45-degree viewing angle in the width direction of the privacy sub-pixel, the light emission brightness of the privacy sub-pixel near the second edge is the second light emission brightness, and the light emission brightness of the privacy sub-pixel near the fourth edge is the fourth light emission brightness. The first light emission brightness and the third light emission brightness are both greater than the second light emission brightness and the fourth light emission brightness.

[0021] In some embodiments of this application, at a 45-degree viewing angle in the width direction of the privacy sub-pixel, the light emission brightness of the privacy sub-pixel near the second edge is the second light emission brightness, the light emission brightness of the privacy sub-pixel near the fourth edge is the fourth light emission brightness, the first light emission brightness is greater than the second light emission brightness and the fourth light emission brightness, and the third light emission brightness is less than the second light emission brightness and the fourth light emission brightness.

[0022] In some embodiments of this application, in the length direction of the privacy sub-pixel, the privacy pixel and the shared pixel are arranged side by side, and the first edge is located on the side of the third edge away from the shared pixel; Alternatively, the first edge may be located on the side of the third edge closer to the shared pixel. In some embodiments of this application, the display panel includes a light-transmitting functional layer disposed between the light-emitting pixel layer and the light-shielding layer. The light-transmitting functional layer includes a cathode and an encapsulation layer. The cathode covers the light-emitting pixel layer, and the encapsulation layer covers the cathode. One side of the light-transmitting functional layer contacts the light-emitting pixel layer, and the other side of the light-transmitting functional layer contacts the light-shielding layer. The thickness of the light-transmitting functional layer is greater than or equal to 35 micrometers.

[0023] Optionally, in some embodiments of this application, the light-shielding layer has multiple shared openings, the shared pixel includes multiple shared sub-pixels corresponding to sub-pixels with the same emission color, and the area of ​​the shared opening is larger than the area of ​​the privacy opening; The display panel also includes a light filter layer disposed within the privacy opening and the shared opening.

[0024] According to a second aspect of this application, a display device is provided, which includes a display panel as described in any of the above embodiments.

[0025] In the display panel and display device of this application embodiment, the privacy pixel includes a plurality of privacy sub-pixels, and the light-shielding layer has a plurality of privacy openings. Each privacy opening exposes a portion of a privacy sub-pixel, and the area of ​​the privacy opening is smaller than the area of ​​the corresponding privacy sub-pixel. The light-shielding layer covers a portion of the privacy sub-pixel. In the display panel viewed from above, in the length direction of the privacy sub-pixel, the privacy sub-pixel has a first edge and a third edge disposed opposite to each other. The distance from the privacy opening to the first edge is a first distance, and the distance from the privacy opening to the third edge is a second distance. The first distance is smaller than the second distance.

[0026] It is understood that, in the display panel and display device of the present application embodiments, in the display panel viewed from above, the privacy sub-pixel has a first edge and a third edge disposed opposite to each other in the length direction of the privacy sub-pixel, the distance from the privacy opening to the first edge is a first distance, and the distance from the privacy opening to the third edge is a second distance. The first distance is less than the second distance, which causes the privacy opening to be offset in the length direction of the privacy sub-pixel, and causes a difference in the viewing angle brightness in the length direction of the privacy sub-pixel, so as to improve the privacy effect on the third side while achieving double-sided privacy.

[0027] 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.

[0028] 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.

[0029] Figure 1 This is a top view schematic diagram of the display panel provided in an exemplary embodiment of this disclosure; Figure 2 yes Figure 1 An enlarged schematic diagram of section M in the middle; Figure 3 yes Figure 1 Another enlarged schematic diagram of part M in the middle; Figure 4 yes Figure 1 Another enlarged schematic diagram of part M in the middle; Figure 5 yes Figure 4 An enlarged schematic diagram of part N in the middle; Figure 6 yes Figure 4 A schematic diagram of the cross-sectional structure along line AA; Figure 7 yes Figure 4 A schematic diagram of the cross-sectional structure along line BB; Figure 8 yes Figure 4 A schematic diagram of the cross-sectional structure along the CC line; Figure 9 This is a privacy protection diagram corresponding to the second sub-pixel in the display panel of an embodiment of this application; Figure 10 This is a schematic diagram of the structure of a display device provided in an exemplary embodiment of this disclosure.

[0030] Explanation of reference numerals in the attached figures: Display panel 100; First direction F1; Second direction F2; Display area DA; Non-display area NDA; Pixel circuit layer 101; Pixel electrode 011; Pixel definition layer 012; Opening K1; First opening K11; Second opening K12; Light-emitting pixel layer 102; Light-transmitting functional layer 103; Cathode 031; Encapsulation layer 032; Light-shielding layer 104; Shared opening 04a; Privacy opening 04b; Filter layer 105; Repeating unit U0; Shared pixel U1; Privacy pixel U2; Shared sub-pixel P 1; Anti-peeping sub-pixel P2; First sub-pixel R1; Second sub-pixel G1; Third sub-pixel B1; First filter 05R; Second filter 05G; Third filter 05B; First center Q1; Second center Q2; First edge P21; Second edge P22; Third edge P23; Fourth edge P24; First side b1; Second side b2; Third side b3; Fourth side b4; First distance L1; Second distance L2; Third distance L3; Fourth distance L4; Display device 1000. Detailed Implementation

[0031] 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.

[0032] This application provides a display panel 100; please refer to [link / reference]. Figures 1 to 5 ,exist Figures 1 to 5 In the plan view, the first direction F1 can be a direction parallel to one side of the display panel 100, and for example, it can be the longitudinal direction of the display panel 100. The second direction F2 can be a direction parallel to the other side of the display panel 100 in the plan view, and it can be the lateral direction of the display panel 100.

[0033] The display panel 100 may have a rectangular or square shape in a plan view, but the implementation is not limited to this. In some embodiments, the display panel 100 may have a rectangular shape with vertical corners or rounded corners in a plan view. The display panel 100 may include two long sides arranged in a first direction F1 and two short sides arranged in a second direction F2 in a plan view.

[0034] Display panel 100 may include a display area DA and a non-display area NDA. In a plan view, the shape of the display area DA may correspond to the shape of the display panel 100. For example, if the display panel 100 has a rectangular shape in a plan view, the display area DA may also have a rectangular shape.

[0035] The display area DA can be a region comprising pixels that display the image. Pixels can be arranged in a matrix. A pixel comprises multiple subpixels. Subpixels can have a rectangular shape in a planar view, such as a rectangle or a square. Figure 2 As shown, the sub-pixels are rectangular in shape.

[0036] The non-display area (NDA) can be a region that does not contain pixels and therefore does not display images. The non-display area (NDA) can be located around the display area (DA). For example... Figure 1 As shown, the non-display area NDA may surround the display area DA, but the implementation is not limited to this.

[0037] Optionally, in some embodiments of this application, please refer to Figures 6 to 8 The display panel 100 includes a pixel circuit layer 101, a light-emitting pixel layer 102, a light-transmitting functional layer 103, and a light-shielding layer 104.

[0038] The light-emitting pixel layer 102 is disposed on the pixel circuit layer 101. The light-transmitting functional layer 103 covers the light-emitting pixel layer 102. The light-shielding layer 104 is disposed on the side of the light-transmitting functional layer 103 away from the light-emitting pixel layer 102.

[0039] The pixel circuit layer 101 includes pixel circuits. The pixel circuits are configured to drive the light-emitting pixel layer 102 to emit light.

[0040] Optionally, the pixel circuit layer 101 includes a pixel electrode 011 and a pixel definition layer 012. The pixel definition layer 012 is provided with a plurality of openings K1, and each opening K1 exposes a pixel electrode 011. The light-emitting pixel layer 102 is disposed within the openings K1.

[0041] The light-emitting pixel layer 102 may include an emission layer. In some embodiments, the light-emitting pixel layer 102 may also include an emission layer and a functional layer. The functional layer may include a hole transport layer, a hole injection layer, an electron transport layer, and / or an electron injection layer. In some other embodiments, the light-emitting pixel layer 102 may include a first stack including an emission layer and a functional layer, a second stack including an emission layer and a functional layer, and a charge generation layer located between the first stack and the second stack. The charge generation layer may include a negative charge generation layer and a positive charge generation layer. The emission efficiency of the tandem light-emitting diode with the emission layer can be further improved by using the negative charge generation layer and the positive charge generation layer.

[0042] Optionally, in some embodiments of this application, the light-emitting pixel layer 102 includes a shared pixel U1 and a privacy pixel U2. The shared pixel U1 includes a plurality of shared sub-pixels P1. The privacy pixel U2 includes a plurality of privacy sub-pixels P2.

[0043] Optionally, the plurality of openings K1 includes a first opening K11 and a second opening K12, with the privacy sub-pixel P2 disposed within the first opening K11. The shared sub-pixel P1 is disposed within the second opening K12.

[0044] In some embodiments, one of the multiple shared sub-pixels P1 is a first sub-pixel R1 that emits a first color light, another is a second sub-pixel G1 that emits a second color light, and yet another is a third sub-pixel B1 that emits a third color light. Similarly, one of the multiple privacy-protecting sub-pixels P2 is a first sub-pixel R1 that emits a first color light, another is a second sub-pixel G1 that emits a second color light, and yet another is a third sub-pixel B1 that emits a third color light.

[0045] In other words, the first sub-pixel R1, the second sub-pixel G1, and the third sub-pixel B1 are all configured to form a shared pixel U1 and a privacy pixel U2.

[0046] In this embodiment, the first color light, the second color light, and the third color light are different colors of light. This application uses the example of the first sub-pixel R1 emitting red light, the second sub-pixel G1 emitting green light, and the third sub-pixel B1 emitting blue light for illustration, but it is not limited to this. For example, the first sub-pixel R1 emits green light, the second sub-pixel G1 emits red light, and the third sub-pixel B1 emits blue light; or, the first sub-pixel R1 emits blue light, the second sub-pixel G1 emits red light, and the third sub-pixel B1 emits green light.

[0047] It should be noted that at least one shared pixel U1 and at least one privacy pixel U2 constitute a repeating unit U0. Multiple repeating units U0 can be arranged in a matrix along the first direction F1 and the second direction F2. For example... Figure 2 As shown, this application uses the example of a repeating unit U0 including a shared pixel U1 and a privacy pixel U2 for illustration, but it is not limited to this.

[0048] Optionally, the shared sub-pixel P1 and the privacy sub-pixel P2 can each be rectangular. In the display panel 100 viewed from above, the privacy sub-pixel P2 is rectangular, and the first direction F1 is the length direction of the privacy sub-pixel P2.

[0049] It should be noted that the display panel 100 includes a sharing mode and a privacy mode. In sharing mode, the display panel 100 illuminates both the sharing pixel U1 and the privacy pixel U2 simultaneously, or the display panel 100 illuminates only the sharing pixel U1. In privacy mode, the display panel 100 illuminates only the privacy pixel U2.

[0050] Optionally, in some embodiments of this application, the light-transmitting functional layer 103 includes a cathode 031 and an encapsulation layer 032, with the cathode 031 covering the light-emitting pixel layer 102 and the encapsulation layer 032 covering the cathode 031.

[0051] Optionally, the encapsulation layer 032 includes an inorganic layer, an organic layer, and an inorganic layer stacked sequentially.

[0052] It should be noted that the structure of the light-transmitting functional layer 103 is not limited to this. For example, the light-transmitting functional layer 103 may also include an organic planarization layer and an inorganic insulating layer disposed on the side of the encapsulation layer 032 away from the cathode 031.

[0053] Optionally, in some embodiments of this application, the light-shielding layer 104 has a plurality of shared openings 04a, and each shared opening 04a exposes a shared sub-pixel P1.

[0054] The center of the shared opening 04a and the center of the shared sub-pixel P1 coincide in the thickness direction of the display panel 100. In the shared opening 04a and the shared sub-pixel P1 aligned in the thickness direction of the display panel 100, the opening area of ​​the shared opening 04a is greater than or equal to the area of ​​the shared sub-pixel P1, allowing the shared sub-pixel P1 to emit light at a large angle and exit through the shared opening 04a, thereby achieving display sharing.

[0055] In some embodiments, in the display panel 100 viewed from above, the sidewalls of the shared opening 04a and the edges of the shared sub-pixel P1 are flush with each other.

[0056] Optionally, in some embodiments of this application, the light-shielding layer 104 has a plurality of privacy openings 04b, and one privacy opening 04b corresponds to one privacy sub-pixel P2.

[0057] Optionally, in some embodiments of this application, for sub-pixels with the same luminous color, the area of ​​the shared opening 04a is larger than the area of ​​the privacy opening 04b, which facilitates the display sharing of the shared opening 04a.

[0058] Optionally, in some embodiments of this application, the material of the light-shielding layer 104 can be an inorganic metallic material, such as Cr, Mo, Mn, etc., or a metal oxide material, such as CrO. x MoO x MnO2, etc., or a mixed film layer formed by metals and metal oxides; it can also be an organic black resin material, such as black polystyrene, black photoresist, etc.

[0059] Optionally, in some embodiments of this application, the display panel 100 further includes a light filter layer 105, a portion of which is disposed within the shared opening 04a, and another portion of which is disposed within the privacy opening 04b.

[0060] The filter layer 105 includes a first filter portion 05R, a second filter portion 05G, and a third filter portion 05B. The first filter portion 05R is configured to transmit a first color light, the second filter portion 05G is configured to transmit a second color light, and the third filter portion 05B is configured to transmit a third color light.

[0061] Based on this, the first filter 05R corresponds to the first sub-pixel R1, the second filter 05G corresponds to the second sub-pixel G1, and the third filter 05B corresponds to the third sub-pixel B1.

[0062] Optionally, in some embodiments of this application, a privacy opening 04b corresponds to a portion of a privacy sub-pixel P2 that is exposed. The area of ​​the privacy opening 04b is smaller than the area of ​​its corresponding privacy sub-pixel P2, and the light-shielding layer 104 covers a portion of the privacy sub-pixel P2.

[0063] Please refer to Figures 2 to 5 In the display panel 100 viewed from above, along the length of the privacy sub-pixel P2, the privacy sub-pixel P2 has a first edge P21 and a third edge P23 that are set opposite to each other. The distance from the privacy opening 04b to the first edge P21 is a first distance L1, and the distance from the privacy opening 04b to the third edge P23 is a second distance L2. The first distance L1 is less than the second distance L2.

[0064] It is understood that the display panel 100 in this application embodiment sets the first distance L1 to be smaller than the second distance L2 so that the privacy opening 04b is offset in the length direction of the privacy sub-pixel P2, and causes a difference in the viewing angle brightness in the length direction of the privacy sub-pixel P2, so as to improve the privacy effect of the third side (the third edge P23 side).

[0065] Optionally, in some embodiments of this application, the privacy sub-pixel P2 has a second edge P22 and a fourth edge P24 disposed opposite to each other in the width direction. The distance from the privacy opening 04b to the second edge P22 is a third distance L3, and the distance from the privacy opening 04b to the second edge P22 is a third distance L3L4. The first distance L1 is less than the third distance L3 and the fourth distance L4, and the third distance L3 and the fourth distance L4 are less than the second distance L2.

[0066] Understandably, the first distance L1 is the smallest, and the third edge P23 side has the best anti-spy effect; the third distance L3 and the fourth distance L4 are next, and the left and right viewpoints have better anti-spy effects.

[0067] In some embodiments of this application, the edge of the privacy opening 04b near the first edge P21 is aligned and overlaps with the first edge P21, so that the first distance L1 is 0, and the privacy effect of the view on the third edge P23 side is the best, so as to achieve a better privacy effect of three-sided privacy.

[0068] In some embodiments of this application, in the length direction of the privacy sub-pixel P2, the first opening K11 has a first sidewall and a third sidewall that are disposed opposite to each other, the distance from the privacy opening 04b to the first sidewall is a first spacing, the distance from the privacy opening 04b to the third sidewall is a second spacing, and the first spacing is smaller than the second spacing.

[0069] In some embodiments of this application, in the width direction of the privacy sub-pixel P2, the first opening K11 has a second sidewall and a fourth sidewall disposed opposite to each other, the distance from the privacy opening 04b to the second sidewall is a third spacing, and the distance from the privacy opening 04b to the fourth sidewall is a fourth spacing. The first spacing is smaller than the third spacing and the fourth spacing, and the third spacing and the fourth spacing are smaller than the second spacing.

[0070] In some embodiments of this application, the privacy opening 04b is aligned and overlaps with the edge of the first sidewall near the first sidewall.

[0071] It should be noted that the first opening K11 is configured to define the area of ​​the privacy pixel P2, meaning the pattern of the first opening K11 is the same as and overlaps with the pattern of the privacy pixel P2. Based on this, from a top-down view, the first sidewall and the first edge P21 overlap, the second sidewall and the second edge P22 overlap, the third sidewall and the third edge P23 overlap, and the fourth sidewall and the fourth edge P24 overlap. Therefore, the first spacing is equal to the first distance L1, the second spacing is equal to the second distance L2, the third spacing is equal to the third distance L3, and the fourth spacing is equal to the fourth distance L4.

[0072] In some embodiments of this application, in the length direction of the privacy pixel P2, the privacy pixel U2 and the shared pixel U1 are arranged side by side, and the first edge P21 is located on the side of the third edge P23 away from the shared pixel U1, such as... Figure 3 and Figure 4 As shown.

[0073] Alternatively, in some embodiments of this application, the first edge P21 is located on the side of the third edge P23 near the shared pixel U1, and the first side edge b1 is located on the side of the third side edge b3 near the shared pixel U1, such as... Figure 2 As shown. That is to say, Figure 2 and Figure 4The difference is that it is equivalent to treating the privacy sub-pixel P2 and its paired privacy opening 04b as a whole and rotating them 180 degrees around the center of the privacy sub-pixel P2, while the shared pixel U1 and its paired privacy opening 04b remain unchanged.

[0074] The following text is in the format of Figure 4 and Figure 5 This will be used as an example for further explanation, but it is not limited to this.

[0075] Please refer to Figure 4 and Figure 5 In the display panel 100 viewed from above, the privacy sub-pixel P2 has a first center Q1, and the privacy opening 04b has a second center Q2. The first center Q1 and the second center Q2 are aligned along a first direction F1. In the first direction F1, the maximum distance L1 from the edge of the privacy sub-pixel P2 closest to the second center Q2 to the side of the privacy opening 04b away from the first center Q1 is less than or equal to 15 micrometers.

[0076] It is understood that the display panel 100 of this application embodiment reduces the area of ​​the privacy opening 04b and offsets the privacy opening 04b from the first center Q1 of the privacy sub-pixel P2, so that the privacy opening 04b is closer to the edge of the privacy sub-pixel P2. In the first direction F1, the maximum distance from the edge of the privacy sub-pixel P2 closest to the second center Q2 to the side of the privacy opening 04b away from the first center Q1 is less than or equal to 15 micrometers, so that the privacy opening 04b is closer to the edge of the privacy sub-pixel P2, thereby achieving three-sided privacy while improving the privacy effect.

[0077] It should be noted that, as Figure 4 and Figure 5 As shown, the first center Q1 is the geometric center of the privacy sub-pixel P2, and the second center Q2 is the geometric center of the privacy opening 04b. In the first direction F1, the closer the privacy opening 04b is to the upper edge of the privacy sub-pixel P2, the less lateral light is emitted from the privacy sub-pixel P2 in the downward direction, resulting in a better lateral privacy effect in the downward direction.

[0078] In addition, the embodiments of this application use Figure 4 and Figure 5 Taking this example, the privacy opening 04b is located near the upper edge of the privacy sub-pixel P2, but it is not limited to this. For example, in some embodiments, the privacy opening 04b is located near the lower edge of the privacy sub-pixel P2. When the privacy opening 04b is located near the lower edge of the privacy sub-pixel P2, optionally, the lower sidewall of the privacy opening 04b is flush with the lower edge of the privacy sub-pixel P2.

[0079] Optionally, in the first direction F1, the maximum distance L1 from the edge of the privacy sub-pixel P2 closest to the second center Q2 to the side of the privacy opening 04b away from the first center Q1 can be 15 micrometers, 14 micrometers, 13 micrometers, 12 micrometers, 11 micrometers, 10 micrometers, 9 micrometers, 8 micrometers, 7 micrometers, 6 micrometers, 5 micrometers, 4 micrometers, 3 micrometers, 2 micrometers, 1 micrometer or 0 micrometers.

[0080] Optionally, in some embodiments of this application, in the display panel 100 viewed from above, in the first direction F1, the distance V1 from the edge of the privacy pixel P2 closest to the second center Q2 to the second center Q2 is less than the distance V2 from the first center Q1 to the second center Q2.

[0081] Understandably, in the first direction F1, the distance V1 from the edge of the privacy sub-pixel P2 closest to the second center Q2 to the second center Q2 is less than the distance V2 from the first center Q1 to the second center Q2, causing the privacy opening 04b to shift towards the upper edge of the privacy sub-pixel P2 to be closer to the upper edge of the privacy sub-pixel P2; and the distance V1 is less than the distance V2 from the first center Q1 to the second center Q2, causing the privacy opening 04b to be even closer to the upper edge of the privacy sub-pixel P2, thereby improving the privacy effect in the lower direction.

[0082] Optionally, in some embodiments of this application, in the display panel 100 viewed from above, in the first direction F1, the edge of the privacy sub-pixel P2 closest to the second center Q2 and the side of the privacy opening 04b away from the first center Q1 are arranged to coincide.

[0083] Understandably, the edge of the privacy sub-pixel P2 closest to the second center Q2 and the side of the privacy opening 04b furthest from the first center Q1 are set to coincide, so that in the first direction F1, the maximum distance L1 from the edge of the privacy sub-pixel P2 closest to the second center Q2 to the side of the privacy opening 04b furthest from the first center Q1 is 0 micrometers, so as to improve the privacy effect in the downward direction.

[0084] Optionally, in some embodiments of this application, in the display panel 100 viewed from above, the privacy pixel P2 is rectangular, and the first direction F1 is the length direction of the privacy pixel P2.

[0085] The privacy pixel P2 includes a first edge P21, a second edge P22, a third edge P23, and a fourth edge P24. The first edge P21 and the third edge P23 are positioned opposite each other, as are the second edge P22 and the fourth edge P24. The first edge P21 and the third edge P23 are arranged along a first direction F1 and extend along a second direction F2. The second edge P22 and the fourth edge P24 are arranged along the second direction F2 and extend along the first direction F1. The second direction F2 is the width direction of the privacy pixel P2.

[0086] In the first direction F1, the length of the privacy opening 04b is less than the length of the privacy sub-pixel P2, and the distance V1 from the second center Q2 to the first edge P21 is less than the distance V2 from the first center Q1 to the second center Q2. The distance from the side of the privacy opening 04b closest to the first edge P21 to the first edge P21 is less than the distance from the side of the privacy opening 04b furthest from the first edge P21 to the third edge P23.

[0087] Understandably, as the privacy opening 04b moves upward, the upper side of the privacy opening 04b gets closer to the first edge P21, and the lower side of the privacy opening 04b gets further away from the third edge P23. This makes the distance from the side of the privacy opening 04b closest to the first edge P21 to the first edge P21 less than the distance from the side of the privacy opening 04b furthest from the first edge P21 to the third edge P23, so as to achieve a downward privacy effect.

[0088] Optionally, the length of the privacy opening 04b is less than or equal to 1 / 6 of the length of the privacy sub-pixel P2, such as 1 / 6, 1 / 7, 1 / 8, 1 / 9, 1 / 10, 1 / 11, 1 / 12, etc.

[0089] In the second direction F2, the width of the privacy opening 04b is smaller than the width of the privacy sub-pixel P2. The side of the privacy opening 04b is located between the second edge P22 and the fourth edge P24, and the side of the privacy opening 04b is spaced apart from the second edge P22 and the fourth edge P24, respectively.

[0090] It is understandable that the width of the privacy opening 04b is smaller than the width of the privacy sub-pixel P2 in order to reduce the opening area of ​​the privacy opening 04b. Furthermore, the left and right sides of the privacy opening 04b are both located within the area of ​​the privacy sub-pixel P2 to facilitate privacy in the left and right directions. Based on this, combined with privacy in the downward direction, a three-sided privacy effect can be achieved.

[0091] Optionally, in some embodiments of this application, the privacy opening 04b in the display panel 100 from a top-view perspective is rectangular. The privacy opening 04b includes a first side b1, a second side b2, a third side b3, and a fourth side b4. The first side b1 and the third side b3 are arranged opposite each other, and the second side b2 and the fourth side b4 are arranged opposite each other. The first side b1 and the third side b3 are arranged along a first direction F1 and extend along a second direction F2, and the second edge P22 and the fourth edge P24 are arranged along the second direction F2 and extend along the first direction F1.

[0092] In the first direction F1, the first side b1 is closer to the first edge P21 than the third side b3, and the first distance L1 from the first side b1 to the first edge P21 is less than or equal to 15 micrometers.

[0093] In the second direction F2, the second side b2 is closer to the second edge P22 than the fourth side b4. Both the second side b2 and the fourth side b4 are spaced apart between the second edge P22 and the fourth edge P24. The third distance L3 from the second side b2 to the second edge P22 is less than or equal to 15 micrometers, and the fourth distance L4 from the fourth side b4 to the fourth edge P24 is less than or equal to 15 micrometers.

[0094] It is understandable that the first distance L1 from the first side b1 to the first edge P21 is less than or equal to 15 micrometers, the third distance L3 from the second side b2 to the second edge P22 is less than or equal to 15 micrometers, and the fourth distance L4 from the fourth side b4 to the fourth edge P24 is less than or equal to 15 micrometers, so as to achieve three-sided privacy protection and improve the privacy protection effect.

[0095] It should be noted that although the third distance L3 from the second side b2 to the second edge P22 is less than or equal to 15 micrometers, and the fourth distance L4 from the fourth side b4 to the fourth edge P24 is less than or equal to 15 micrometers, the light-shielding layer 104 must block part of the left and right sides of the privacy sub-pixel P2 to achieve privacy in the left and right directions.

[0096] Optionally, the third distance L3 from the second side b2 to the second edge P22 and the fourth distance L4 from the fourth side b4 to the fourth edge P24 can each be 15 micrometers, 14 micrometers, 13 micrometers, 12 micrometers, 11 micrometers, 10 micrometers, 9 micrometers, 8 micrometers, 7 micrometers, 6 micrometers, 5 micrometers, 4 micrometers, 3 micrometers or 2 micrometers.

[0097] Optionally, in some embodiments of this application, the first side b1 and the first edge P21 coincide, such that the first distance L1 from the first side b1 to the first edge P21 is 0 micrometers, thereby improving the privacy protection effect in the downward direction.

[0098] Optionally, in some embodiments of this application, the third distance L3 from the second side b2 to the second edge P22 is equal to the fourth distance L4 from the fourth side b4 to the fourth edge P24, so as to improve the symmetry of light emission in the left and right directions and thus improve the display effect.

[0099] In some embodiments of this application, at a 45-degree viewing angle along the length of the privacy pixel P2, the light emission brightness of the privacy pixel P2 near the first edge P21 is the first light emission brightness, and the light emission brightness of the privacy pixel P2 near the third edge P23 is the third light emission brightness, and the first light emission brightness is greater than the third light emission brightness.

[0100] Understandably, the third light output brightness (V-) is lower in order to improve the privacy protection effect on the third edge P23 side.

[0101] In some embodiments of this application, at a 45-degree viewing angle in the width direction of the privacy pixel P2, the light emission brightness of the privacy pixel P2 near the second edge P22 is the second light emission brightness, and the light emission brightness of the privacy pixel P2 near the fourth edge P24 is the fourth light emission brightness. The first light emission brightness and the third light emission brightness are both greater than the second light emission brightness and the fourth light emission brightness.

[0102] Understandably, the lower brightness of the second (H-) and fourth (H+) light outputs is intended to prevent peeping from the left and right.

[0103] In some embodiments of this application, at a 45-degree viewing angle in the width direction of the privacy pixel P2, the light emission brightness of the privacy pixel P2 near the second edge P22 is the second light emission brightness, and the light emission brightness of the privacy pixel P2 near the fourth edge P24 is the fourth light emission brightness. The first light emission brightness is greater than the second light emission brightness and the fourth light emission brightness, and the third light emission brightness is less than the second light emission brightness and the fourth light emission brightness.

[0104] Understandably, the second and fourth light output brightness (H-) are smaller, and the third light output brightness (V-) is even smaller, in order to achieve three-sided privacy protection in the left, right and bottom directions.

[0105] Optionally, in some embodiments of this application, one side of the light-transmitting functional layer 103 contacts the light-emitting pixel layer 102, the other side of the light-transmitting functional layer 103 contacts the light-shielding layer 104, and the thickness of the light-transmitting functional layer 103 is greater than or equal to 35 micrometers.

[0106] Please refer to Table 1 and combine it with... Figure 9In Example 1 corresponding to Table 1, the privacy opening 04b is located slightly above the center of the privacy sub-pixel P2, and both the privacy sub-pixel P2 and the privacy opening 04b are rectangular in shape. The privacy sub-pixel P2 is exemplified by the green light sub-pixel (second sub-pixel G1). The brightness attenuation percentage (L-decay) is the percentage of brightness at a 45-degree light emission angle to brightness at a 0-degree light emission angle. The aperture ratio is the area of ​​a single privacy opening 04b corresponding to the second sub-pixel G1 divided by the total area of ​​a single privacy pixel U2. A smaller aperture ratio results in a smaller size for the privacy opening 04b.

[0107]

[0108] As shown in Table 1, with a significant increase in the thickness of the light-transmitting layer, the brightness in the downward direction (V-) is further reduced, thus improving the privacy protection effect in the downward direction (V-). Therefore, the thickness of the light-transmitting layer 103 is set to be greater than or equal to 35 micrometers to improve the privacy protection effect in the downward direction.

[0109] Please refer to Table 2 and combine it with... Figure 9 In the corresponding embodiment 2 in Table 1, the first side b1 of the privacy opening 04b coincides with the first edge P21 of the privacy sub-pixel P2, and both the privacy sub-pixel P2 and the privacy opening 04b are rectangular in shape. The privacy sub-pixel P2 is exemplified by the green light sub-pixel (second sub-pixel G1). The brightness attenuation percentage (L-decay) is the percentage of brightness at a 45-degree light emission angle to brightness at a 0-degree light emission angle. The aperture ratio is the area of ​​a single privacy opening 04b corresponding to the second sub-pixel G1 divided by the total area of ​​a single privacy pixel U2. A smaller aperture ratio results in a smaller size for the privacy opening 04b.

[0110]

[0111] As shown in Table 2, with the increase of the thickness of the light-transmitting layer, the brightness in the downward direction (V-) is further reduced, which can improve the privacy effect in the downward direction (V-). Therefore, the thickness of the light-transmitting layer 103 is set to be greater than or equal to 35 micrometers to improve the privacy effect in the downward direction.

[0112] Optionally, the thickness of the light-transmitting functional layer 103 can be 35 micrometers, 36 micrometers, 37 micrometers, 38 micrometers, 39 micrometers, 40 micrometers, 41 micrometers, 42 micrometers, 43 micrometers, 44 micrometers, 45 micrometers, 46 micrometers, 47 micrometers, 48 ​​micrometers, 49 micrometers, or 50 micrometers.

[0113] Please refer to Figure 10 , Figure 10This is a schematic diagram of the structure of the display device 1000 provided in an embodiment of this application. According to a second aspect of this application, a display device 1000 is provided, which includes a display panel 100 as described in any of the above embodiments.

[0114] It should be noted that the structure of the display panel 100 of the display device 1000 provided in this application embodiment is the same as the structure of the display panel 100 provided in the above embodiments. Please refer to the following for details. Figures 1 to 6 Therefore, the relevant explanations will not be repeated here.

[0115] Display device 1000 can be at least one of the following: smartphone, tablet, mobile phone, video phone, e-book reader, desktop computer, laptop, netbook, workstation, server, personal digital assistant, portable media player, MP3 player, television, mobile medical device, camera, game console, digital camera, car navigation system, in-vehicle display screen, electronic billboard, ATM, or wearable device, VR device, AR device.

[0116] In the display device 1000 of this application embodiment, the privacy pixel U2 includes a plurality of privacy sub-pixels P2, and the light-shielding layer 104 has a plurality of privacy openings 04b. Each privacy opening 04b exposes a portion of a privacy sub-pixel P2. The area of ​​the privacy opening 04b is smaller than the area of ​​its corresponding privacy sub-pixel P2, and the light-shielding layer 104 covers a portion of the privacy sub-pixel P2. In the display panel 100 viewed from above, the privacy sub-pixel P2 has a first center Q1, and the privacy opening 04b has a second center Q2. The first center Q1 and the second center Q2 are aligned along a first direction F1. In the first direction F1, the distance from the edge of the privacy sub-pixel P2 closest to the second center Q2 to the second center Q2 is smaller than the distance from the first center Q1 to the second center Q2.

[0117] It is understood that the display panel 100 and display device 1000 of this application embodiment reduce the area of ​​the privacy opening 04b and offset the privacy opening 04b from the first center Q1 of the privacy sub-pixel P2, so that the privacy opening 04b is closer to the edge of the privacy sub-pixel P2. In the first direction F1, the maximum distance from the edge of the privacy sub-pixel P2 closest to the second center Q2 to the side of the privacy opening 04b away from the first center Q1 is less than or equal to 15 micrometers, so that the privacy opening 04b is closer to the edge of the privacy sub-pixel P2, thereby achieving three-sided privacy while improving the privacy effect.

[0118] 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.

[0119] 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.

[0120] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0121] 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 pixel layer includes shared pixels and privacy pixels, wherein the privacy pixels include multiple privacy sub-pixels; A light-shielding layer is disposed on the light-emitting side of the light-emitting pixel layer. The light-shielding layer has multiple privacy openings, one of which exposes a portion of a privacy sub-pixel. The area of ​​the privacy opening is smaller than the area of ​​the corresponding privacy sub-pixel, and the light-shielding layer covers a portion of the privacy sub-pixel. In the display panel viewed from above, the privacy sub-pixel has a first edge and a third edge arranged opposite to each other along its length. The distance from the privacy opening to the first edge is a first distance, and the distance from the privacy opening to the third edge is a second distance. The first distance is less than the second distance.

2. The display panel according to claim 1, characterized in that, In the width direction of the privacy sub-pixel, the privacy sub-pixel has a second edge and a fourth edge that are arranged opposite to each other, and the distance from the privacy opening to the second edge is a third distance, the first distance is less than the third distance, and the third distance is less than the second distance.

3. The display panel according to claim 2, characterized in that, The edge of the privacy opening near the first edge is aligned and overlaps with the first edge.

4. The display panel according to claim 1, characterized in that, The display panel includes a pixel definition layer, the pixel definition layer is provided with a plurality of first openings, and the privacy sub-pixel is disposed in the first opening; Along the length of the privacy sub-pixel, the first opening has a first sidewall and a third sidewall disposed opposite to each other. The distance from the privacy opening to the first sidewall is a first spacing, and the distance from the privacy opening to the third sidewall is a second spacing. The first spacing is smaller than the second spacing.

5. The display panel according to claim 4, characterized in that, In the width direction of the privacy sub-pixel, the first opening has a second sidewall and a fourth sidewall that are disposed opposite to each other. The distance from the privacy opening to the second sidewall is a third spacing. The first spacing is smaller than the third spacing, and the third spacing is smaller than the second spacing.

6. The display panel according to claim 5, characterized in that, The privacy opening is aligned and overlaps with the edge of the first sidewall.

7. The display panel according to claim 1, characterized in that, In the display panel viewed from above, the privacy sub-pixel has a first center, and the privacy opening has a second center. The first center and the second center are aligned along a first direction. In the display panel viewed from above, in the first direction, the distance from the edge of the privacy sub-pixel closest to the second center to the second center is less than the distance from the first center to the second center.

8. The display panel according to claim 7, characterized in that, In the display panel viewed from above, in the first direction, the edge of the privacy sub-pixel closest to the second center and the side of the privacy opening furthest from the first center are arranged to coincide.

9. The display panel according to claim 7, characterized in that, In the first direction, the maximum distance from the edge of the privacy sub-pixel closest to the second center to the side of the privacy opening furthest from the first center is less than or equal to 15 micrometers.

10. The display panel according to claim 7, characterized in that, In the display panel viewed from above, the privacy sub-pixel is rectangular, the width direction of the privacy sub-pixel is the second direction, the first edge and the third edge are arranged along the first direction and extend along the second direction, and the length direction of the privacy sub-pixel is the first direction; the privacy opening is rectangular, and the privacy opening includes a first side and a third side arranged opposite to each other along the first direction; In the first direction, the first side is closer to the first edge than the third side, and the distance from the first side to the first edge is less than or equal to 15 micrometers.

11. The display panel according to claim 10, characterized in that, The first side and the first edge coincide.

12. The display panel according to claim 10, characterized in that, The privacy sub-pixel has a second edge and a fourth edge that are disposed opposite to each other, the second edge and the fourth edge being arranged along the second direction and extending along the first direction; the privacy opening includes a second side and a fourth side that are disposed opposite to each other, the second side and the fourth side being arranged along the second direction and extending along the first direction; In the second direction, the second side is closer to the second edge than the fourth side. The second side and the fourth side are both spaced apart between the second edge and the fourth edge. The distance from the second side to the second edge is less than or equal to 15 micrometers, and the distance from the fourth side to the fourth edge is less than or equal to 15 micrometers.

13. The display panel according to claim 12, characterized in that, The distance from the second side to the second edge is equal to the distance from the fourth side to the fourth edge.

14. The display panel according to claim 10, characterized in that, In the first direction, the length of the privacy opening is less than the length of the privacy sub-pixel, the distance from the second center to the first edge is less than the distance from the first center to the second center, and the distance from the side of the privacy opening closest to the first edge to the first edge is less than the distance from the side of the privacy opening furthest from the first edge to the third edge.

15. The display panel according to any one of claims 1-14, characterized in that, At a 45-degree angle along the length of the privacy sub-pixel, the light emission brightness of the privacy sub-pixel near the first edge is the first light emission brightness, and the light emission brightness of the privacy sub-pixel near the third edge is the third light emission brightness. The first light emission brightness is greater than the third light emission brightness.

16. The display panel according to claim 15, characterized in that, In the width direction of the privacy sub-pixel, the privacy sub-pixel has a second edge and a fourth edge that are arranged opposite to each other. At a 45-degree viewing angle in the width direction of the privacy sub-pixel, the light emission brightness of the privacy sub-pixel near the second edge is the second light emission brightness, and the light emission brightness of the privacy sub-pixel near the fourth edge is the fourth light emission brightness. The first light emission brightness and the third light emission brightness are both greater than the second light emission brightness and the fourth light emission brightness.

17. The display panel according to claim 15, characterized in that, In the width direction of the privacy sub-pixel, the privacy sub-pixel has a second edge and a fourth edge that are disposed opposite to each other. At a 45-degree viewing angle in the width direction of the privacy sub-pixel, the light emission brightness of the privacy sub-pixel near the second edge is the second light emission brightness, and the light emission brightness of the privacy sub-pixel near the fourth edge is the fourth light emission brightness. The first light emission brightness is greater than the second light emission brightness and the fourth light emission brightness, and the third light emission brightness is less than the second light emission brightness and the fourth light emission brightness.

18. The display panel according to any one of claims 1-14, characterized in that, Along the length of the privacy sub-pixel, the privacy pixel and the shared pixel are arranged side by side, with the first edge located on the side of the third edge away from the shared pixel; Alternatively, the first edge may be located on the side of the third edge closer to the shared pixel.

19. The display panel according to any one of claims 1-14, characterized in that, The display panel includes a light-transmitting functional layer disposed between the light-emitting pixel layer and the light-shielding layer. The light-transmitting functional layer includes a cathode and an encapsulation layer. The cathode covers the light-emitting pixel layer, and the encapsulation layer covers the cathode. One side of the light-transmitting functional layer contacts the light-emitting pixel layer, and the other side of the light-transmitting functional layer contacts the light-shielding layer. The thickness of the light-transmitting functional layer is greater than or equal to 35 micrometers.

20. A display device, characterized in that, Includes the display panel as described in any one of claims 1-19.

Images