Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a substrate; the light-emitting layer is positioned on one side of the substrate and comprises a plurality of light-emitting pixels which are arranged at intervals; the first peep-proof layer is located on the side, away from the substrate, of the light-emitting layer and provided with a first light-transmitting hole, and the orthographic projection of the first light-transmitting hole on the substrate and the orthographic projection of the light-emitting pixel on the substrate are at least partially overlapped; the touch layer is arranged on the side, away from the substrate, of the first peep-proof layer; the second peep-proof layer is arranged on the side, away from the substrate, of the touch control layer and provided with a second light-transmitting hole, and the orthographic projection of the second light-transmitting hole on the substrate and the orthographic projection of the light-emitting pixel on the substrate are at least partially overlapped. According to the design, the peep-proof effect of the display panel can be improved while the touch performance of the display panel is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] In the prior art, in order to improve product competitiveness, anti-peeping technology is integrated inside the touch display screen, so that there is no need to attach an anti-peeping film to the outside of the screen, thereby reducing the thickness of the final screen. However, the screen integrated with anti-peeping technology has touch performance problems. Summary of the invention

[0003] The present application provides a display panel and a display device, which can ensure touch performance while improving anti-peeping effect.

[0004] According to a first aspect of the present application, a display panel is provided, which includes: a substrate; a light-emitting layer, located on one side of the substrate, including a plurality of light-emitting pixels arranged at intervals; a first privacy layer, located on a side of the light-emitting layer away from the substrate, provided with a first light-transmitting hole, the orthographic projection of the first light-transmitting hole on the substrate at least partially overlaps with the orthographic projection of the light-emitting pixel on the substrate; a touch layer, arranged on a side of the first privacy layer away from the substrate; a second privacy layer, arranged on a side of the touch layer away from the substrate, provided with a second light-transmitting hole, the orthographic projection of the second light-transmitting hole on the substrate at least partially overlaps with the orthographic projection of the light-emitting pixel on the substrate.

[0005] In one embodiment, the display panel further includes: an encapsulation layer located between the light-emitting layer and the first anti-peeping layer.

[0006] Preferably, the encapsulation layer comprises an organic encapsulation sublayer.

[0007] Preferably, the thickness of the organic encapsulation sublayer is in a range from 8 micrometers to 14 micrometers.

[0008] Preferably, the encapsulation layer further comprises a first inorganic encapsulation sublayer and a second inorganic encapsulation sublayer, and the first inorganic encapsulation sublayer, the organic encapsulation sublayer and the second inorganic encapsulation sublayer are sequentially stacked in a direction away from the substrate.

[0009] In one embodiment, the display panel further includes: a first cushioning layer located between the first anti-peeping layer and the touch control layer.

[0010] Preferably, the first cushioning layer includes at least one of an inkjet printing layer and an organic glue coating layer.

[0011] Preferably, the thickness of the first cushioning layer is in a range of 2 micrometers to 10 micrometers.

[0012] Preferably, the distance between the first anti-peep layer and the light-emitting layer is less than or equal to 16 micrometers, and the distance between the touch layer and the light-emitting layer is greater than or equal to 18 micrometers.

[0013] Preferably, the distance between the touch layer and the light-emitting layer is less than or equal to 20 micrometers.

[0014] In one embodiment, the display panel further includes: a second cushioning layer located between the touch layer and the second anti-peeping layer.

[0015] Preferably, the second cushioning layer includes at least one of an inkjet printing layer and an organic glue coating layer.

[0016] Preferably, the thickness of the second padding layer is in a range of 2 micrometers to 10 micrometers.

[0017] Preferably, the distance between the second anti-peep layer and the light-emitting layer is greater than or equal to 23 micrometers.

[0018] Preferably, the distance between the second anti-peep layer and the light-emitting layer is less than or equal to 30 micrometers.

[0019] In one embodiment, the display panel further includes: a planarization layer located on a side of the second privacy protection layer away from the substrate.

[0020] Preferably, the planarization layer comprises an organic coating layer.

[0021] Preferably, the thickness of the planarization layer is in a range from 2 microns to 6 microns.

[0022] In one embodiment, the distance between the second anti-peep layer and the light-emitting layer is equal to the ratio of the target distance to the tangent value of the target angle, wherein the target distance is equal to the sum of the width of the light-emitting pixel in the first direction and the target gap, the target gap is the gap between the edge of the positive projection of the second light-transmitting hole on the substrate and the edge of the positive projection of the light-emitting pixel on the substrate in the first direction, the first direction is a parallel direction to the plane where the substrate is located, the first direction is a parallel direction to the plane where the substrate is located, the target angle is the arc sine value of the ratio between the sine value of the target anti-peep angle and the equivalent refractive index of the first film layer, the first film layer includes at least one of the encapsulation layer, the touch layer, the first padding layer, the second padding layer and the planarization layer, when the number of film layers of the first film layer is equal to 1, the equivalent refractive index of the first film layer is the refractive index of the first film layer, and when the number of film layers of the first film layer is greater than 1, the equivalent refractive index of the first film layer is the comprehensive refractive index of multiple film layers in the first film layer.

[0023] In one embodiment, the touch layer includes a buffer layer, a first conductive layer, an insulating layer, and a second conductive layer which are stacked in sequence.

[0024] Preferably, the orthographic projection of the second privacy protection layer on the substrate covers the orthographic projection of the first conductive layer on the substrate, and the orthographic projection of the second privacy protection layer on the substrate covers the orthographic projection of the second conductive layer on the substrate.

[0025] In one embodiment, the orthographic projection of the first light-transmitting hole on the substrate covers the orthographic projection of the luminescent pixel on the substrate, and / or the orthographic projection of the second light-transmitting hole on the substrate covers the orthographic projection of the luminescent pixel on the substrate.

[0026] Preferably, the orthographic projection of the second light-transmitting hole on the substrate covers the orthographic projection of the first light-transmitting hole on the substrate.

[0027] Preferably, the material of the first anti-peep layer includes light-shielding material.

[0028] Preferably, the material of the first anti-peeping layer is the same as the material of the second anti-peeping layer.

[0029] In one embodiment, the second anti-peep layer is provided with two adjacent second light-transmitting holes, the two second light-transmitting holes are respectively a first target light-transmitting hole and a second target light-transmitting hole, the plurality of luminous pixels include a target pixel, the orthographic projection of the first target light-transmitting hole on the substrate at least partially overlaps with the orthographic projection of the target pixel on the substrate; the cross section of the second target light-transmitting hole perpendicular to the substrate includes a first hole wall and a second hole wall arranged oppositely, the first hole wall is located on the side of the second hole wall close to the first target light-transmitting hole, the first hole wall includes a first vertex close to the substrate, and the second hole wall includes a second vertex away from the substrate; the cross section of the target pixel perpendicular to the substrate includes a first vertex arranged oppositely and adjacent to the substrate A first side and a second side are vertical, the second side is located on the side of the first side close to the second target light-transmitting hole, the first side includes a third vertex facing away from the substrate, and the second side includes a fourth vertex facing away from the substrate; a first virtual straight line is formed between the third vertex and the second vertex, and a second virtual straight line is formed between the fourth vertex and the first vertex, the intersection of the first virtual straight line and the second virtual straight line coincides with the center of the first anti-peeping block in the first anti-peeping layer, the orthographic projection of the first anti-peeping block on the substrate and the orthographic projection of the second anti-peeping block in the second anti-peeping layer on the substrate at least partially overlap, and the second anti-peeping block is located between the first target light-transmitting hole and the second target light-transmitting hole.

[0030] Preferably, the cross-section of the first anti-peep block perpendicular to the substrate includes a third side and a fourth side that are oppositely arranged and perpendicular to the substrate, the third side is located on the side of the fourth side close to the target pixel, the third side includes a fifth vertex away from the substrate, the fourth side includes a sixth vertex close to the substrate, the first vertex, the third vertex and the fifth vertex are collinear, and / or the second vertex, the fourth vertex and the sixth vertex are collinear.

[0031] A second aspect of the present application provides a display device, which includes a display panel as described in any one of the above embodiments.

[0032] Different from the prior art, the beneficial effects of the present application are as follows: the display panel of the present application includes a stacked substrate, a light-emitting layer, a first peep-proof layer, a touch layer, and a second peep-proof layer. The present application sets the touch layer on the side of the first peep-proof layer away from the substrate. Compared with the prior art, the distance between the touch layer and the light-emitting layer is greater than the distance between the first peep-proof layer and the light-emitting layer. That is, the distance between the first peep-proof layer and the light-emitting layer can be adjusted to be smaller to improve the peep-proof effect, while the distance between the touch layer and the light-emitting layer can be adjusted to be larger to ensure the touch performance. The distance adjustment between the touch layer and the first peep-proof layer and the light-emitting layer does not affect each other. At the same time, the present application sets the touch layer between the first peep-proof layer and the second peep-proof layer, rather than setting the touch layer on the side of the second peep-proof layer away from the substrate. The effect is that the second peep-proof layer can effectively absorb external light, thereby preventing the touch layer from reflecting external light and affecting the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0034] Figure 1 is a schematic structural diagram of an embodiment of a display panel of the present application;

[0035] Figure 2 is a structural schematic diagram of another embodiment of the display panel of the present application;

[0036] Figure 3 It is a schematic diagram of the display panel of the present application used to determine the distance between the second anti-peeping layer and the light-emitting layer in an application scenario;

[0037] Figure 4 is a schematic diagram of the display panel of the present application used to determine the center position of the first anti-peeping layer in an application scenario;

[0038] Figure 5 It is a schematic structural diagram of an embodiment of the display device of the present application. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] In the prior art, a display panel includes a substrate, a light-emitting layer, an encapsulation layer and a touch layer stacked in sequence. In a display panel integrated with anti-peeping technology, an anti-peeping layer is further provided on the side of the touch layer away from the substrate, thereby achieving touch and anti-peeping effects.

[0041] However, the above-mentioned product has the problem of poor touch performance during the actual test process. The inventors have found through research that the reason is that in order to ensure the anti-peeping effect of the display panel, the height of the encapsulation layer is lowered in the prior art, that is, the closer the distance between the anti-peeping layer and the light-emitting layer is, the better the anti-peeping effect is. However, this also causes the touch layer to be closer to the light-emitting layer. The light-emitting layer is energized during display, which will also affect the capacitance of the touch layer, thereby affecting the touch performance.

[0042] To solve the above problems, see Figure 1 In a first aspect, the present application provides a display panel 10, which includes a substrate 100, a light-emitting layer 200, a first privacy layer 300, a touch layer 400, and a second privacy layer 500. The light-emitting layer 200 is located on one side of the substrate 100, and includes a plurality of light-emitting pixels 210 arranged at intervals; the first privacy layer 300 is located on the side of the light-emitting layer 200 away from the substrate 100, and is provided with a first light-transmitting hole A, and the orthographic projection of the first light-transmitting hole A on the substrate 100 overlaps with the orthographic projection of the light-emitting pixel 210 on the substrate 100 at least partially; the touch layer 400 is arranged on the side of the first privacy layer 300 away from the substrate 100; the second privacy layer 500 is arranged on the side of the touch layer 400 away from the substrate 100, and is provided with a second light-transmitting hole B, and the orthographic projection of the second light-transmitting hole B on the substrate 100 overlaps with the orthographic projection of the light-emitting pixel 210 on the substrate 100 at least partially.

[0043] Specifically, the first anti-peep layer 300 and the second anti-peep layer 500 are used to block the light of a large viewing angle emitted by the luminous pixel 210, and the first light-transmitting hole A and the second light-transmitting hole B are used to allow the light of a small viewing angle emitted by the luminous pixel 210 to pass through. Figure 1As can be seen from the light diagram in the figure, the second anti-peep layer 500 can be used to control the output viewing angle of light. The second anti-peep layer 500 can block light with a larger viewing angle, while the first anti-peep layer 300 is used to block a larger viewing angle. It is specifically used to prevent the light emitted by the luminous pixel 210 from being emitted from the second light-transmitting hole B that is not directly opposite to the luminous pixel 210, thereby preventing light leakage. Although the first anti-peep layer 300 and the second anti-peep layer 500 both have an anti-peep function, there are differences in their specific functions.

[0044] Furthermore, the orthographic projection of the first light-transmitting hole A on the substrate 100 at least partially overlaps with the orthographic projection of the luminous pixel 210 on the substrate 100, and the orthographic projection of the second light-transmitting hole B on the substrate 100 at least partially overlaps with the orthographic projection of the luminous pixel 210 on the substrate 100, thereby ensuring that the display panel 10 has a better display effect at a positive viewing angle.

[0045] Furthermore, the touch layer 400 is arranged on the side of the first peep-proof layer 300 away from the substrate 100. Compared with the prior art, the distance between the touch layer 400 and the light-emitting layer 200 is greater than the distance between the first peep-proof layer 300 and the light-emitting layer 200. That is, the distance between the first peep-proof layer 300 and the light-emitting layer 200 can be adjusted to be smaller to improve the peep-proof effect, while the distance between the touch layer 400 and the light-emitting layer 200 can be adjusted to be larger to ensure the touch performance. The distance adjustment between the touch layer 400 and the first peep-proof layer 300 and the light-emitting layer 200 does not affect each other. At the same time, the present application arranges the touch layer 400 between the first peep-proof layer 300 and the second peep-proof layer 500, rather than arranging the touch layer 400 on the side of the second peep-proof layer 500 away from the substrate 100. The effect is that the second peep-proof layer 500 can effectively absorb external light, thereby preventing the touch layer 400 from reflecting external light and affecting the display effect.

[0046] In one embodiment, the display panel 10 further includes an encapsulation layer 600 , and the encapsulation layer 600 is located between the light emitting layer 200 and the first privacy protection layer 300 .

[0047] Specifically, the encapsulation layer 600 covers the light-emitting pixels 210, thereby preventing the light-emitting pixels 210 from being corroded by external water vapor. At the same time, the thickness of the encapsulation layer 600 can also be adjusted to a certain extent to adjust the distance between the first anti-peep layer 300 and the light-emitting layer 200. The specific distance can be adjusted according to the anti-peep requirements.

[0048] Further, the encapsulation layer 600 includes an organic encapsulation sublayer 610. The material of the organic encapsulation sublayer 610 includes an organic material, which has a better coverage and planarization effect. Therefore, during encapsulation, the surface of the encapsulation layer 600 after encapsulation can be guaranteed to be flat. The thickness of the organic encapsulation sublayer 610 ranges from 8 microns to 14 microns. For example, the thickness of the organic encapsulation sublayer 610 is 8 microns, 12 microns or 14 microns, etc. The specific value of the thickness is not limited in this application. The organic encapsulation sublayer 610 includes an inkjet printing layer.

[0049] Furthermore, the encapsulation layer 600 further includes a first inorganic encapsulation sublayer 620 and a second inorganic encapsulation sublayer 630 . The first inorganic encapsulation sublayer 620 , the organic encapsulation sublayer 610 , and the second inorganic encapsulation sublayer 630 are sequentially stacked in a direction away from the substrate 100 .

[0050] Specifically, the first inorganic encapsulation sublayer 620 and the second inorganic encapsulation sublayer 630 are used to improve the water vapor isolation effect of the encapsulation layer 600. The materials of the first inorganic encapsulation sublayer 620 and the second inorganic encapsulation sublayer 630 include inorganic materials. The materials of the first inorganic encapsulation sublayer 620 and the second inorganic encapsulation sublayer 630 can be at least one of silicon nitride, silicon oxynitride and silicon oxide.

[0051] In one embodiment, the display panel 10 further includes a first cushioning layer 700 , and the first cushioning layer 700 is located between the first anti-peeping layer 300 and the touch layer 400 .

[0052] Specifically, as can be seen from the above, the encapsulation layer 600 with height adjustment function can be used to adjust the anti-peeping effect of the first anti-peeping layer 300, and by further setting the first padding layer 700 to adjust the distance between the first anti-peeping layer 300 and the touch layer 400, the distance between the touch layer 400 and the light-emitting layer 200 can be adjusted by the first padding layer 700 to achieve a better touch performance of the touch layer 400 while ensuring that the first anti-peeping layer 300 has a better anti-peeping effect. It can be understood that by setting the encapsulation layer 600 and the first padding layer 700, and adjusting the height to a certain extent, the anti-peeping effect of the first anti-peeping layer 300 and the touch performance of the touch layer 400 can be further optimized. At the same time, the first cushioning layer 700 also has a flattening effect, and can cover the first anti-peep layer 300 and the first light-transmitting hole A, so that the first cushioning layer 700 has a better flattening effect on the side away from the substrate 100, thereby ensuring that the touch layer 400 is formed on a flat surface and having better touch performance.

[0053] Furthermore, the first padding layer 700 includes at least one of an inkjet printing layer and an organic glue coating layer. The inkjet printing layer is prepared by printing organic materials through an inkjet printing process, and the organic glue coating layer is prepared by coating organic glue.

[0054] Of course, the first cushioning layer 700 may also include other film layers as long as they can play a role in height adjustment and flattening.

[0055] Preferably, the thickness of the first padding layer 700 ranges from 2 micrometers to 10 micrometers. For example, the thickness of the first padding layer 700 is 2 micrometers, 4 micrometers, 8 micrometers or 10 micrometers.

[0056] In one embodiment, the distance between the first privacy protection layer 300 and the light emitting layer 200 is less than or equal to 16 microns, and the distance between the touch layer 400 and the light emitting layer 200 is greater than or equal to 18 microns, and further less than or equal to 20 microns. Specifically, the distance between the first privacy protection layer 300 and the light emitting layer 200 is 16 microns, 14 microns, or 12 microns, and the distance between the touch layer 400 and the light emitting layer 200 is 18 microns, 19 microns, or 20 microns.

[0057] Of course, in some other embodiments, the first cushioning layer may not be provided, and the touch layer may be directly provided on the surface of the first anti-peeping layer facing away from the substrate. However, the touch performance of this embodiment depends on the thickness of the first anti-peeping layer, and the touch performance may be worse than that of the embodiment with the first cushioning layer.

[0058] In one embodiment, the display panel 10 further includes a second padding layer 800 , and the second padding layer 800 is located between the touch layer 400 and the second privacy protection layer 500 .

[0059] Specifically, on the one hand, the height of the second cushioning layer 800 is adjustable. After the touch layer 400 determines the distance between it and the light-emitting layer 200, the distance between the second anti-peeping layer 500 and the light-emitting layer 200 is ultimately controlled by adjusting the thickness of the second cushioning layer 800, thereby playing a role in controlling the anti-peeping viewing angle. On the other hand, the second cushioning layer 800 covers the touch layer 400, and the touch layer 400 includes a patterned conductive structure (see the implementation method below the figure for details). The surface of the final film layer will have certain undulations. If the second anti-peeping layer 500 is directly covered on the touch layer 400, it will have a certain impact on the anti-peeping effect.

[0060] Furthermore, the second padding layer 800 includes at least one of an inkjet printing layer and an organic glue coating layer. The inkjet printing layer is prepared by printing organic materials through an inkjet printing process, and the organic glue coating layer is prepared by coating organic glue.

[0061] Of course, the second padding layer 800 may also include other film layers as long as they can play a role in height adjustment and flattening.

[0062] Preferably, the thickness of the second padding layer 800 is in a range of 2 micrometers to 10 micrometers. For example, the thickness of the second padding layer 800 is 2 micrometers, 4 micrometers, 8 micrometers or 10 micrometers.

[0063] Preferably, the distance between the second anti-peeping layer 500 and the light-emitting layer 200 is greater than or equal to 23 micrometers. For example, the distance between the second anti-peeping layer 500 and the light-emitting layer 200 is 23um, 28um or 32um.

[0064] Furthermore, the distance between the second privacy protection layer 500 and the light emitting layer 200 is less than or equal to 30 micrometers. For example, the distance between the second privacy protection layer 500 and the light emitting layer 200 is 30um, 28um, or 25um.

[0065] In one embodiment, see Figure 2 The touch layer 400 includes a buffer layer 410, a first conductive layer 420, an insulating layer 430 and a second conductive layer 440 which are stacked in sequence.

[0066] Specifically, according to Figure 2 From the light diagram, we can see that although compared with Figure 1 Although the number of film layers has increased, the first privacy protection layer 300 and the second privacy protection layer 500 still have the same function for the light-emitting pixel 210. The buffer layer 410 is an inorganic material, and the buffer layer 410 can improve the adhesion of the material of the first conductive layer 420. The insulating layer 430 is used for insulation between the first conductive layer 420 and the second conductive layer 440. The first conductive layer 420 and the second conductive layer 440 constitute a touch conductive structure.

[0067] Preferably, the orthographic projection of the second privacy protection layer 500 on the substrate 100 covers the orthographic projection of the first conductive layer 420 on the substrate 100, and the orthographic projection of the second privacy protection layer 500 on the substrate 100 covers the orthographic projection of the second conductive layer 440 on the substrate 100. With such a design, the first conductive layer 420 and the second conductive layer 440 can be prevented from being exposed from the second light-transmitting hole B to avoid reflection of external light, thereby ensuring blackness when the screen is off.

[0068] In one embodiment, continue to refer to Figure 2The display panel 10 further includes a planarization layer 900, which is located on the side of the second anti-peep layer 500 away from the substrate 100. The planarization layer 900 is used to planarize the second anti-peep layer 500 and fill the second light-transmitting hole B. The material of the planarization layer 900 includes a transparent material. Preferably, the planarization layer 900 includes an organic coating layer, which is specifically prepared by coating an organic material. The thickness of the planarization layer 900 ranges from 2 microns to 6 microns. For example, the thickness of the planarization layer 900 is 2 microns, 4 microns, or 6 microns.

[0069] In one embodiment, the orthographic projection of the first light-transmitting hole A on the substrate 100 covers the orthographic projection of the luminescent pixel 210 on the substrate 100, and / or the orthographic projection of the second light-transmitting hole B on the substrate 100 covers the orthographic projection of the luminescent pixel 210 on the substrate 100. In this way, it is possible to prevent the light of the luminescent pixel 210 at a positive viewing angle from being blocked by the first anti-peep layer 300 and / or the second anti-peep layer 500, thereby ensuring that the brightness at a positive viewing angle is not attenuated.

[0070] Preferably, the orthographic projection of the second light-transmitting hole B on the substrate 100 covers the orthographic projection of the first light-transmitting hole A on the substrate 100. That is to say, the width of the second light-transmitting hole B is not less than the width of the first light-transmitting hole A, so that the distance at which the first peep-proof layer 300 blocks light of a large viewing angle can be ensured. It can be understood that when the width of the second light-transmitting hole B is equal to the width of the first light-transmitting hole A, the first peep-proof layer 300 and the second peep-proof layer 500 can be prepared using the same mask plate; when the width of the second light-transmitting hole B is greater than the width of the first light-transmitting hole A, the first peep-proof layer 300 has a better effect in blocking light of a large viewing angle.

[0071] In one embodiment, the material of the first privacy protection layer 300 includes a light shielding material, and the material of the first privacy protection layer 300 is the same as the material of the second privacy protection layer 500. The light shielding material includes a black matrix material, which has a better absorption effect on light, thereby achieving a better privacy protection effect.

[0072] Of course, in some other implementations, the materials of the first anti-peeping layer 300 and the second anti-peeping layer 500 may also be black ink, carbon black or other materials.

[0073] In one embodiment, see Figure 3, the distance H between the second anti-peeping layer 500 and the light-emitting layer 200 is equal to the ratio of the target distance W to the tangent value of the target angle β, wherein the target distance W is equal to the sum of the width D of the light-emitting pixel 210 in the first direction X and the target gap d, the target gap d is the gap between the edge of the positive projection of the second light-transmitting hole B on the substrate 100 and the edge of the positive projection of the light-emitting pixel 210 on the substrate 100 in the first direction X, the first direction X is a parallel direction to the plane where the substrate 100 is located, and the target angle β is the target anti-peeping angle The arc sine value of the ratio between the sine value of α and the equivalent refractive index n of the first film layer 1000, the first film layer 1000 includes at least one of an encapsulation layer, a touch layer, a first cushioning layer, a second cushioning layer and a planarization layer, when the number of film layers of the first film layer 1000 is equal to 1, the equivalent refractive index of the first film layer 1000 is the refractive index of the first film layer 1000, when the number of film layers of the first film layer 1000 is greater than 1, the equivalent refractive index of the first film layer 1000 is the comprehensive refractive index of multiple film layers in the first film layer 1000.

[0074] Specifically, the target privacy protection angle α is the product specification angle. Using the refractive index formula (the ratio of the sine of the incident angle to the refractive index of the incident material is equal to the ratio of the sine of the exit angle to the refractive index of the exit material), the target privacy protection angle α, the air refractive index of 1, and the equivalent refractive index of the first film layer 1000 are determined to calculate the target angle β. Then, according to the width D of the light-emitting pixel 210 in the first direction X, and the sum of the target gap d between the edge of the orthographic projection of the light-emitting pixel 210 on the substrate 100 and the edge of the orthographic projection of the second light-transmitting hole B on the substrate 100, the target distance H is calculated. Thus, the distance between the second privacy protection layer 500 and the light-emitting layer 200 during design can be determined. Among them, the first film layer 1000 can be any one of the above-mentioned film layers, or a combination of multiple film layers.

[0075] Corresponding to the above process, the distance H between the second anti-peeping layer 500 and the light-emitting layer 200 can be calculated by the following formula:

[0076]

[0077] Corresponding to the above process, the target angle β can be calculated using the following formula:

[0078]

[0079] In one embodiment, see Figure 4, the second anti-peep layer 500 is provided with two adjacent second light-transmitting holes B, the two second light-transmitting holes B are respectively a first target light-transmitting hole B1 and a second target light-transmitting hole B2, the plurality of light-emitting pixels 210 include a target pixel 210A, the orthographic projection of the first target light-transmitting hole B1 on the substrate 100 at least partially overlaps with the orthographic projection of the target pixel 210A on the substrate 100; the cross section of the second target light-transmitting hole B2 perpendicular to the substrate 100 includes a first hole wall S1 and a second hole wall S2 arranged oppositely, the first hole wall S1 is located on the side of the second hole wall S2 close to the first target light-transmitting hole B1, the first hole wall S1 includes a first vertex P1 close to the substrate 100, and the second hole wall S2 includes a second vertex P2 away from the substrate 100; the cross section of the target pixel 210A perpendicular to the substrate 100 includes a first hole wall S1 and a second hole wall S2 arranged oppositely and perpendicular to the substrate 100 Side T1 and second side T2, the second side T2 is located on the side of the first side T1 close to the second target light-transmitting hole B2, the first side T1 includes a third vertex P3 facing away from the substrate 100, and the second side T2 includes a fourth vertex P4 facing away from the substrate 100; a first virtual straight line L1 is formed between the third vertex P3 and the second vertex P2, and a second virtual straight line L2 is formed between the fourth vertex P4 and the first vertex P1, the intersection of the first virtual straight line L1 and the second virtual straight line L2 coincides with the center of the first anti-peep block 300A in the first anti-peep layer 300, the orthographic projection of the first anti-peep block 300A on the substrate 100 and the orthographic projection of the second anti-peep block 500A in the second anti-peep layer 500 on the substrate 100 at least partially overlap, and the second anti-peep block 500A is located between the first target light-transmitting hole B1 and the second target light-transmitting hole B2.

[0080] According to the above content, it can be understood that the first virtual straight line L1 is the light path of the maximum visual angle of the target pixel 210A in the second target light-transmitting hole B2 when there is no first privacy block 300A, and the second virtual straight line L2 is the light path of the minimum visual angle of the target pixel 210A in the second target light-transmitting hole B2 when there is no first privacy block 300A. Therefore, the center position of the first privacy block 300A is determined by the intersection of the first virtual straight line L1 and the second virtual straight line L2. After determining the center position of the first privacy block 300A, the light emitted from the target pixel 210A to the second target light-transmitting hole B2 is blocked by designing corresponding dimensions for the first privacy block 300A in the length and width directions. The advantage of this is that the volume of the first privacy block 300A is as small as possible and will not block the light of the positive visual angle of the light-emitting pixel 210 in the end.

[0081] Preferably, the cross-section of the first anti-peep block 300A perpendicular to the substrate 100 includes a third side T3 and a fourth side T4 which are relatively arranged and perpendicular to the substrate 100, the third side T3 is located on the side of the fourth side T4 close to the target pixel 210A, the third side T3 includes a fifth vertex P5 away from the substrate 100, the fourth side T4 includes a sixth vertex P6 close to the substrate 100, the first vertex P1, the third vertex P3 and the fifth vertex P5 are collinear, and / or the second vertex P2, the fourth vertex P4 and the sixth vertex P6 are collinear.

[0082] Specifically, by having the first vertex P1, the third vertex P3 and the fifth vertex P5 be in a straight line, the light on the rightmost side of the target pixel 210A can be blocked by the first anti-peep block 300A, so that the light cannot be emitted from the second target light-transmitting hole B2; by having the second vertex P2, the fourth vertex P4 and the sixth vertex P6 be in a straight line, the light on the leftmost side of the target pixel 210A can be blocked by the first anti-peep block 300A, so that the light cannot be emitted from the second target light-transmitting hole B2. Therefore, it can be ensured that the light on both sides of the target pixel 210A cannot be emitted from the second target light-transmitting hole B2, thereby achieving the effect of avoiding light leakage.

[0083] It should be noted that the first privacy block 300A may be a privacy block at any position in the first privacy layer 300, and the first privacy block 300A and the first light-transmitting hole A are alternately arranged, and the second privacy block 500A may be a privacy block at any position in the second privacy layer 500, and the second privacy block 500A and the second light-transmitting hole B are alternately arranged. In some other embodiments, in order to achieve a better privacy protection effect, the line between the first vertex P1 and the third vertex P3 passes through the first privacy block 300A, and the line between the second vertex P2 and the fourth vertex P4 also passes through the first privacy block 300A.

[0084] See also Figure 5 In a second aspect, the present application provides a display device 20, which includes a display panel 10 as described above.

[0085] Specifically, the display device 20 can be any display device such as a notebook, a desktop, a tablet computer, a mobile phone, a smart watch, a virtual display terminal, etc., and is not limited here.

[0086] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel comprises: substrate; A light-emitting layer, located on one side of the substrate, comprising a plurality of light-emitting pixels arranged at intervals; A first privacy layer, located on a side of the light-emitting layer away from the substrate, is provided with a first light-transmitting hole, and an orthographic projection of the first light-transmitting hole on the substrate at least partially overlaps with an orthographic projection of the light-emitting pixel on the substrate; A touch layer, disposed on a side of the first privacy protection layer away from the substrate; The second privacy layer is arranged on the side of the touch layer away from the substrate and is provided with a second light-transmitting hole, and the orthographic projection of the second light-transmitting hole on the substrate at least partially overlaps with the orthographic projection of the luminous pixel on the substrate.

2. The display panel according to claim 1, characterized in that: Also includes: An encapsulation layer, located between the light-emitting layer and the first anti-peeping layer; Preferably, the encapsulation layer comprises an organic encapsulation sublayer; Preferably, the thickness of the organic encapsulation sublayer ranges from 8 microns to 14 microns; Preferably, the encapsulation layer further comprises a first inorganic encapsulation sublayer and a second inorganic encapsulation sublayer, and the first inorganic encapsulation sublayer, the organic encapsulation sublayer and the second inorganic encapsulation sublayer are sequentially stacked in a direction away from the substrate.

3. The display panel according to claim 1, characterized in that: Also includes: A first cushioning layer, located between the first anti-peeping layer and the touch control layer; Preferably, the first cushion layer includes at least one of an inkjet printing layer and an organic glue coating layer; Preferably, the thickness of the first cushioning layer ranges from 2 microns to 10 microns; Preferably, the distance between the first anti-peep layer and the light-emitting layer is less than or equal to 16 micrometers, and the distance between the touch layer and the light-emitting layer is greater than or equal to 18 micrometers; Preferably, the distance between the touch layer and the light-emitting layer is less than or equal to 20 micrometers.

4. The display panel according to claim 3, characterized in that: Also includes: A second cushioning layer, located between the touch layer and the second anti-peeping layer; Preferably, the second cushion layer includes at least one of an inkjet printing layer and an organic glue coating layer; Preferably, the thickness of the second cushioning layer ranges from 2 microns to 10 microns; Preferably, the distance between the second anti-peeping layer and the light-emitting layer is greater than or equal to 23 microns; Preferably, the distance between the second anti-peep layer and the light-emitting layer is less than or equal to 30 micrometers.

5. The display panel according to claim 4, characterized in that: Also includes: A planarization layer, located on a side of the second privacy protection layer away from the substrate; Preferably, the planarization layer comprises an organic coating layer; Preferably, the thickness of the planarization layer is in a range from 2 microns to 6 microns.

6. The display panel according to claim 5, characterized in that: The distance between the second anti-peep layer and the light-emitting layer is equal to the ratio of the target distance to the tangent value of the target angle, wherein the target distance is equal to the sum of the width of the light-emitting pixel in the first direction and the target gap, the target gap is the gap between the edge of the positive projection of the second light-transmitting hole on the substrate and the edge of the positive projection of the light-emitting pixel on the substrate in the first direction, the first direction is a direction parallel to the plane where the substrate is located, the target angle is the arc sine value of the ratio between the sine value of the target anti-peep angle and the equivalent refractive index of the first film layer, the first film layer includes at least one of an encapsulation layer, the touch layer, the first padding layer, the second padding layer and the planarization layer, when the number of film layers of the first film layer is equal to 1, the equivalent refractive index of the first film layer is the refractive index of the first film layer, and when the number of film layers of the first film layer is greater than 1, the equivalent refractive index of the first film layer is the comprehensive refractive index of multiple film layers in the first film layer.

7. The display panel according to claim 1, characterized in that: The touch layer includes a buffer layer, a first conductive layer, an insulating layer, and a second conductive layer stacked in sequence; Preferably, the orthographic projection of the second privacy protection layer on the substrate covers the orthographic projection of the first conductive layer on the substrate, and the orthographic projection of the second privacy protection layer on the substrate covers the orthographic projection of the second conductive layer on the substrate.

8. The display panel according to claim 1, characterized in that: The orthographic projection of the first light-transmitting hole on the substrate covers the orthographic projection of the light-emitting pixel on the substrate, and / or the orthographic projection of the second light-transmitting hole on the substrate covers the orthographic projection of the light-emitting pixel on the substrate; Preferably, the orthographic projection of the second light-transmitting hole on the substrate covers the orthographic projection of the first light-transmitting hole on the substrate; Preferably, the material of the first anti-peep layer includes a light-shielding material; Preferably, the material of the first anti-peeping layer is the same as the material of the second anti-peeping layer.

9. The display panel according to claim 1, characterized in that: The second anti-peep layer is provided with two adjacent second light-transmitting holes, the two second light-transmitting holes are respectively a first target light-transmitting hole and a second target light-transmitting hole, the plurality of light-emitting pixels include a target pixel, and the orthographic projection of the first target light-transmitting hole on the substrate at least partially overlaps with the orthographic projection of the target pixel on the substrate; The cross section of the second target light-transmitting hole perpendicular to the substrate comprises a first hole wall and a second hole wall arranged opposite to each other, the first hole wall is located on a side of the second hole wall close to the first target light-transmitting hole, the first hole wall comprises a first vertex close to the substrate, and the second hole wall comprises a second vertex away from the substrate; The cross section of the target pixel perpendicular to the substrate includes a first side and a second side that are oppositely arranged and perpendicular to the substrate, the second side is located on a side of the first side close to the second target light-transmitting hole, the first side includes a third vertex away from the substrate, and the second side includes a fourth vertex away from the substrate; A first virtual straight line is formed between the third vertex and the second vertex, a second virtual straight line is formed between the fourth vertex and the first vertex, an intersection of the first virtual straight line and the second virtual straight line coincides with a center of a first privacy block in the first privacy layer, an orthographic projection of the first privacy block on the substrate at least partially overlaps with an orthographic projection of a second privacy block in the second privacy layer on the substrate, and the second privacy block is located between the first target light-transmitting hole and the second target light-transmitting hole; Preferably, the cross-section of the first anti-peep block perpendicular to the substrate includes a third side and a fourth side that are oppositely arranged and perpendicular to the substrate, the third side is located on the side of the fourth side close to the target pixel, the third side includes a fifth vertex away from the substrate, the fourth side includes a sixth vertex close to the substrate, the first vertex, the third vertex and the fifth vertex are collinear, and / or the second vertex, the fourth vertex and the sixth vertex are collinear.

10. A display device, characterized in that: The display device comprises a display panel as claimed in any one of claims 1 to 9.

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