Display panel and display device

Abstract

The invention belongs to the field of display, and particularly relates to a display panel and a display device.The display panel comprises a substrate, a driving circuit layer, a pixel definition layer, a light-emitting layer, a packaging layer and a shading unit, the driving circuit layer and the pixel definition layer are arranged on one side of the substrate, the light-emitting layer is formed in a pixel opening area of the pixel definition layer, and the packaging layer is arranged on the other side of the substrate. The light-emitting layer comprises a plurality of display light-emitting parts and a plurality of peep-proof light-emitting parts, each peep-proof light-emitting part comprises two peep-proof units which are arranged at intervals, the packaging layer is formed on the sides, away from the substrate, of the pixel defining layer and the light-emitting layer, and the light shielding units are arranged at intervals and formed on the side, away from the substrate, of the packaging layer. The orthographic projection of the peep-proof unit on the substrate is located in the orthographic projection of the shading unit on the substrate. Compared with an integral peep-proof light-emitting part, the display panel has the advantages that the peep-proof light in the central area of the peep-proof light-emitting part can be prevented from being completely shielded by the shading unit, the light utilization rate of the peep-proof light-emitting part is increased, and the peep-proof effect of the display panel is enhanced.

Description

Technical Field

[0001] This application belongs to the field of displays, and particularly relates to a display panel and a display device. Background Art

[0002] An organic light-emitting diode (OLED) display panel has high clarity and a wide viewing angle, generally up to 170 degrees, which can bring a better visual experience to users. However, sometimes users also hope to reduce the viewing angle of the display panel (anti-peep) to effectively protect business secrets and personal privacy.

[0003] To achieve anti-peep, some pixel units of the display panel include display pixels and anti-peep pixels, and a light-shielding structure is provided above the anti-peep pixels. In the normal mode, the anti-peep pixels are turned off, and the display panel can display normally; in the anti-peep mode, the anti-peep pixels are turned on, and the light-shielding structure blocks the small-angle light emission of the anti-peep pixels, and the large-angle light of the anti-peep pixels is not blocked, which can interfere with the display of the display pixels. That is to say, in the anti-peep mode, the display screen within the anti-peep viewing angle is not disturbed, and the display screen outside the anti-peep viewing angle will be disturbed, thereby achieving large-angle anti-peep.

[0004] The organic light-emitting diode has the highest luminous brightness at 0°, and the brightness decreases significantly as the angle increases. The small-angle light emission of the anti-peep pixels is blocked by the light-shielding structure, that is, the area with the highest luminous brightness is blocked by the light-shielding structure. Therefore, the brightness of the anti-peep pixels outside the anti-peep viewing angle is relatively low, affecting the anti-peep effect of the display panel. Summary of the Invention

[0005] The purpose of this application is to provide a display panel and a display device to improve the brightness of the anti-peep pixels and enhance the anti-peep effect of the display panel.

[0006] To achieve the above purpose, this application provides a display panel, including a substrate and a driving circuit layer, the driving circuit layer is disposed on one side of the substrate, and the display panel further includes: A pixel definition layer formed on the side of the driving circuit layer away from the substrate, the pixel definition layer includes a plurality of pixel opening regions and pixel definition portions surrounding the pixel opening regions; A light-emitting layer formed in the pixel opening regions, the light-emitting layer includes a plurality of display light-emitting portions and a plurality of anti-peep light-emitting portions, and the anti-peep light-emitting portions include two anti-peep units, and the two anti-peep units are spaced apart along the row direction or the column direction; A packaging layer formed on the side of the pixel definition layer and the light-emitting layer away from the substrate; A shading unit, wherein a plurality of the shading units are spaced apart and formed on a side of the encapsulation layer away from the base substrate, an orthographic projection of the display light emitting portion on the base substrate is spaced apart from an orthographic projection of the shading unit on the base substrate, and an orthographic projection of the anti-peep unit on the base substrate is located within the orthographic projection of the shading unit on the base substrate.

[0007] Optionally, the multiple display light-emitting portions include a first light-emitting portion, a second light-emitting portion and a third light-emitting portion, the light-emitting efficiency of the first light-emitting portion is greater than the light-emitting efficiency of the second light-emitting portion, the light-emitting efficiency of the second light-emitting portion is greater than the light-emitting efficiency of the third light-emitting portion, the display panel includes a plurality of pixel units, the pixel unit includes one first light-emitting portion, one second light-emitting portion and one third light-emitting portion, the first light-emitting portion and the second light-emitting portion are arranged at intervals along a first direction, the first light-emitting portion and the second light-emitting portion are located on one side of the third light-emitting portion in a second direction, the second direction is perpendicular to the first direction, and in the first direction, the first light-emitting portion and the second light-emitting portion are aligned with the third light-emitting portion as a whole; The anti-peeping luminous part is arranged in at least part of the pixel units, and the anti-peeping luminous part is arranged at the junction of at least part of the adjacent display luminous parts, and the extension line of the junction line of at least part of the adjacent display luminous parts passes through the anti-peeping luminous part.

[0008] Optionally, the two anti-peeping units of the anti-peeping luminous portion have the same luminous color, and the pixel defining portion is arranged between the two anti-peeping units.

[0009] Optionally, the anti-peeping light-emitting portion is made of the same material as the first light-emitting portion or the second light-emitting portion.

[0010] Optionally, the two anti-peep units of the anti-peep light-emitting portion have different luminous colors, the pixel definition portion is arranged between the two anti-peep units, and the display panel also includes a conductor portion and an eaves portion, the conductor portion is at least formed on a side of the pixel definition portion away from the base substrate between the two anti-peep units, the eaves portion is formed on a side of the conductor portion away from the base substrate, the eaves portion protrudes relative to the conductor portion so that a recessed area is formed between the eaves portion and the pixel definition portion, the recessed area is located on two sides of the conductor portion opposite to the pixel opening area, and the eaves portion is used to isolate the light-emitting layer.

[0011] Optionally, the anti-peeping unit is connected to one of the adjacent display light-emitting parts.

[0012] Optionally, at least part of the edge of the orthographic projection of the light-shielding unit on the substrate substrate is arc-shaped, and the shape of the orthographic projection of the light-shielding unit on the substrate substrate includes a circle, an ellipse or a rounded polygon.

[0013] Optionally, the adjacent sides of two light-shielding units corresponding to the same anti-peeking light-emitting part are straight edges or arc-shaped edges, and the two light-shielding units are symmetric in the row direction or the column direction; or The adjacent sides of two light-shielding units corresponding to the same anti-peeking light-emitting part are arc-shaped edges, and the adjacent arc-shaped edges of the two light-shielding units are concentric.

[0014] Optionally, the light-shielding unit includes a main body part and an auxiliary light-shielding part. The auxiliary light-shielding part is located on the side of the main body part away from the substrate substrate. The orthographic projection of the anti-peeking unit on the substrate substrate is located within the orthographic projection of the main body part on the substrate substrate. The orthographic projection of the main body part on the substrate substrate is located within the orthographic projection of the auxiliary light-shielding part on the substrate substrate. The main body part is used to define the light-emitting angle of the anti-peeking unit to form an anti-peeking viewing angle, and the auxiliary light-shielding part is used to block the diffracted light within the anti-peeking viewing angle.

[0015] This application also provides a display device, including: The display panel; The main board, connected to the display panel.

[0016] The display panel and the display device disclosed in this application have the following beneficial effects: In this application, the display panel includes a substrate substrate, a driving circuit layer, a pixel definition layer, a light-emitting layer, a packaging layer and a light-shielding unit. The driving circuit layer is disposed on one side of the substrate substrate. The pixel definition layer is formed on the side of the driving circuit layer away from the substrate substrate. The pixel definition layer includes a plurality of pixel opening regions and pixel definition portions. The light-emitting layer is formed within the pixel opening regions. The light-emitting layer includes a plurality of display light-emitting parts and a plurality of anti-peeking light-emitting parts. Each anti-peeking light-emitting part includes two anti-peeking units, and the two anti-peeking units are spaced apart in the row direction or the column direction. The packaging layer is formed on the side of the pixel definition layer and the light-emitting layer away from the substrate substrate. A plurality of light-shielding units are spaced apart and formed on the side of the packaging layer away from the substrate substrate. The orthographic projection of the anti-peeking unit on the substrate substrate is located within the orthographic projection of the light-shielding unit on the substrate substrate. Compared with the integral anti-peeking light-emitting part, this application can avoid the anti-peeking light in the central area of the anti-peeking light-emitting part from being completely blocked by the light-shielding unit, improve the light utilization rate and brightness of the anti-peeking light-emitting part, and enhance the anti-peeking effect of the display panel.

[0017] Other features and advantages of this application will become apparent through the following detailed description, or will be partially learned through the practice of this application.

[0018] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the present disclosure. Description of the Drawings

[0019] The drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0020] Figure 1 is a cross-sectional schematic view of the display panel in Embodiment 1 of the present application.

[0021] Figure 2 is a top view schematic view of the display panel in Embodiment 1 of the present application.

[0022] Figure 3 is a schematic view of two anti-peeping units arranged at intervals in the row direction in Embodiment 1 of the present application.

[0023] Figure 4 is a schematic view of the brightness comparison between the integral anti-peeping light-emitting part and the anti-peeping light-emitting part in the present application.

[0024] Figure 5 is a schematic view of the connection of the anti-peeping units of the anti-peeping light-emitting part in Embodiment 1 of the present application.

[0025] Figure 6 is Figure 1 a partial enlarged schematic view of position A in

[0026] Figure 7 is a top view schematic view of the display panel in Embodiment 2 of the present application.

[0027] Figure 8 is a schematic view of an elliptically symmetric anti-peeping unit in Embodiment 2 of the present application.

[0028] Figure 9 is a schematic view of an intersecting circular anti-peeping unit in Embodiment 2 of the present application.

[0029] Figure 10 is a schematic view of an intersecting elliptical anti-peeping unit in Embodiment 2 of the present application.

[0030] Figure 11 is a schematic structural view of the display device in Embodiment 3 of the present application.

[0031] Description of the Reference Numerals: 10, display panel; 20, main board; 100, substrate; 200, driving circuit layer; 310, Anode; 320, Pixel definition layer; 321, Pixel definition part; 322, Pixel opening area; 330, Light-emitting layer; 331, Display light-emitting part; 3311, First light-emitting part; 3312, Second light-emitting part; 3313, Third light-emitting part; 332, Anti-peeking light-emitting part; 3321, Anti-peeking unit; 340, Cathode layer; 400, Encapsulation layer; 410, First inorganic encapsulation layer; 420, Organic encapsulation layer; 430, Second inorganic encapsulation layer; 510, Light-shielding unit; 511, Main body part; 512, Auxiliary light-shielding part; 520, Color-resist layer; 530, Organic filling layer; 610, Conductor part; 620, Eaves part. Detailed implementation manners

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art.

[0033] In addition, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of this application. However, those skilled in the art will realize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be used. In other cases, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of this application.

[0034] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted here that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application and should not be construed as limiting the present application.

[0035] Embodiment 1 See Figure 1 and Figure 2As shown in the figure, in this embodiment, the display panel 10 includes a substrate 100, a driving circuit layer 200, an anode 310, a pixel definition layer 320, a light-emitting layer 330, a cathode layer 340, a packaging layer 400, and a light-shielding unit 510. The driving circuit layer 200 is disposed on one side of the substrate 100. The substrate 100 includes a glass substrate, a polyimide (PI) substrate, etc. The driving circuit layer 200 includes a plurality of pixel driving circuits. A plurality of anodes 310 are formed on the side of the driving circuit layer 200 away from the substrate 100, and each anode 310 can be connected to a pixel driving circuit.

[0036] The pixel definition layer 320 is formed on the side of the driving circuit layer 200 away from the substrate 100. The pixel definition layer 320 includes a plurality of pixel openings 322 and pixel definition parts 321 surrounding the pixel openings 322. That is, the pixel definition parts 321 define the pixel openings 322. The pixel definition parts 321 cover the edge areas of the anodes 310, and the pixel openings 322 expose the central areas of the anodes 310.

[0037] The light-emitting layer 330 is at least formed in the pixel openings 322, and the light-emitting layer 330 is connected to the anode 310. The light-emitting layer 330 includes a plurality of display light-emitting parts 331 and a plurality of anti-peeping light-emitting parts 332. That is, both the display light-emitting parts 331 and the anti-peeping light-emitting parts 332 are disposed in the pixel openings 322. Each display light-emitting part 331 is connected to an anode 310, and each anti-peeping light-emitting part 332 is connected to an anode 310. The anodes 310 corresponding to the anti-peeping light-emitting parts 332 can be connected to each other. The cathode layer 340 is formed on the side of the pixel definition layer 320 and the light-emitting layer 330 away from the substrate 100.

[0038] In some embodiments, the light-emitting layer 330 further includes a non-light-emitting part on the pixel definition part 321 outside the pixel opening 322. Both the display light-emitting part 331 and the anti-peeping light-emitting part 332 are connected to the non-light-emitting part, which can be determined according to specific circumstances. Generally, 3 to 4 display light-emitting parts 331 form a pixel unit, and a plurality of pixel units are arranged in an array in the row direction and the column direction to display an image. Each anti-peeping light-emitting part 332 includes two anti-peeping units 3321, and the two anti-peeping units 3321 are spaced apart in the row direction or the column direction. It should be understood that the two anti-peeping units 3321 belonging to the same anti-peeping light-emitting part 332 are located in the same pixel opening 322 and share one anode 310.

[0039] The two anti-peeping units 3321 are spaced apart in the row direction or the column direction, and the brightness of the anti-peeping light in the row direction and the column direction of the anti-peeping light-emitting part 332 is different. For example, the two anti-peeping units 3321 are spaced apart in the row direction, such as Figure 3As shown, the brightness of the anti-peeking light of the anti-peeking light-emitting part 332 in the row direction is greater than that of the anti-peeking light of the anti-peeking light-emitting part 332 in the column direction. The main anti-peeking direction of the display panel 10 is the row direction, that is, the anti-peeking effect in the row direction is better. For another example, two anti-peeking units 3321 are arranged at intervals in the column direction, such as Figure 2 As shown, the brightness of the anti-peeking light of the anti-peeking light-emitting part 332 in the column direction is greater than that of the anti-peeking light of the anti-peeking light-emitting part 332 in the row direction. The main anti-peeking direction of the display panel 10 is the column direction, that is, the anti-peeking effect in the column direction is better.

[0040] The encapsulation layer 400 is formed on the side of the cathode layer 340 away from the substrate 100. The encapsulation layer 400 may include a first inorganic encapsulation layer 410, an organic encapsulation layer 420, and a second inorganic encapsulation layer 430 formed in sequence. A plurality of light-shielding units 510 are arranged at intervals and formed on the side of the encapsulation layer 400 away from the substrate 100. The light-shielding units 510 are arranged in one-to-one correspondence with the anti-peeking units 3321. The light-shielding units 510 can be made of a metal material or a black organic material. The orthographic projection of the display light-emitting part 331 on the substrate 100 forms an interval with the orthographic projection of the light-shielding unit 510 on the substrate 100. The orthographic projection of the anti-peeking unit 3321 on the substrate 100 is located within the orthographic projection of the light-shielding unit 510 on the substrate 100. The orthographic projection of the anti-peeking unit 3321 on the substrate 100 and the orthographic projection of the light-shielding unit 510 on the substrate 100 are the same or substantially the same in shape.

[0041] The display mode of the display panel 10 includes a normal mode and an anti-peeking mode. In the anti-peeking mode, both the display light-emitting part 331 and the anti-peeking light-emitting part 332 emit light. The light-shielding unit 510 blocks the small-angle light output of the anti-peeking light-emitting part 332, and the large-angle light of the anti-peeking light-emitting part 332 is not blocked, which can interfere with the display screen of the display light-emitting part 331 to achieve large-angle anti-peeking; in the normal mode, the anti-peeking light-emitting part 332 does not emit light, and the display light-emitting part 331 emits light normally, and the display panel 10 can display normally. That is to say, in the anti-peeking mode, the display screen within the anti-peeking viewing angle a (usually about 25°) is not disturbed, and the display screen outside the anti-peeking viewing angle a will be disturbed, so as to achieve large-angle anti-peeking.

[0042] The organic light-emitting diode has the highest luminous brightness at 0°, and the brightness decreases significantly as the angle increases. The small-angle light output of the anti-peeking light-emitting part 332 is blocked by the light-shielding unit 510, that is, the area with the highest luminous brightness is blocked by the light-shielding unit 510. Therefore, the brightness of the anti-peeking light-emitting part 332 outside the anti-peeking viewing angle is relatively low, which affects the anti-peeking effect of the display panel.

[0043] In this embodiment, the display panel 10 includes a substrate 100, a driving circuit layer 200, a pixel definition layer 320, a light-emitting layer 330, a packaging layer 400, and a light-shielding unit 510. The driving circuit layer 200 is disposed on one side of the substrate 100. The pixel definition layer 320 is formed on the side of the driving circuit layer 200 away from the substrate 100. The pixel definition layer 320 includes a plurality of pixel opening regions 322 and a pixel definition portion 321 surrounding the pixel opening regions 322. The light-emitting layer 330 is formed within the pixel opening regions 322. The light-emitting layer 330 includes a plurality of display light-emitting portions 331 and a plurality of anti-peeking light-emitting portions 332. Each anti-peeking light-emitting portion 332 includes two anti-peeking units 3321. The two anti-peeking units 3321 are spaced apart along the row direction or the column direction. The packaging layer 400 is formed on the side of the pixel definition layer 320 and the light-emitting layer 330 away from the substrate 100. A plurality of light-shielding units 510 are spaced apart and formed on the side of the packaging layer 400 away from the substrate 100. The orthographic projection of the anti-peeking unit 3321 on the substrate 100 is located within the orthographic projection of the light-shielding unit 510 on the substrate 100. The two anti-peeking units 3321 of the anti-peeking light-emitting portion 332 are spaced apart along the row direction or the column direction, and a light-emitting gap is formed between the corresponding two light-shielding units 510. Compared with the integral anti-peeking light-emitting portion 332, it can prevent the anti-peeking light in the central region of the anti-peeking light-emitting portion 332 from being completely blocked by the light-shielding unit 510, improving the light utilization rate and brightness of the anti-peeking light-emitting portion 332. As Figure 4 shown, the anti-peeking effect of the display panel 10 is enhanced.

[0044] In some embodiments, the plurality of display light-emitting portions 331 include a first light-emitting portion 3311, a second light-emitting portion 3312, and a third light-emitting portion 3313. The luminous efficiency of the first light-emitting portion 3311 is greater than that of the second light-emitting portion 3312, and the luminous efficiency of the second light-emitting portion 3312 is greater than that of the third light-emitting portion 3313. Exemplarily, the first light-emitting portion 3311 can emit green light, the second light-emitting portion 3312 can emit red light, and the third light-emitting portion 3313 can emit blue light. The display panel 10 includes a plurality of pixel units, and each pixel unit includes at least one first light-emitting portion 3311, at least one second light-emitting portion 3312, and at least one third light-emitting portion 3313.

[0045] The first light-emitting portion 3311 and the second light-emitting portion 3312 are spaced apart along a first direction. The first light-emitting portion 3311 and the second light-emitting portion 3312 are located on one side of the third light-emitting portion 3313 in a second direction, and the second direction is perpendicular to the first direction. The first direction is, for example, the row direction, and the second direction is, for example, the column direction, and vice versa. In the first direction, the whole of the first light-emitting portion 3311 and the second light-emitting portion 3312 is centered and aligned with the third light-emitting portion 3313. For example Figure 2As shown, the distance between the left sides of the first light-emitting part 3311 and the third light-emitting part 3313 is equal to the distance between the right sides of the second light-emitting part 3312 and the third light-emitting part 3313. The anti-peeking light-emitting part 332 corresponds to each pixel unit one by one and is arranged at the junction of at least some adjacent display light-emitting parts 331. The edge of the display light-emitting part 331 close to the anti-peeking light-emitting part 332 is recessed inward to make room for the anti-peeking light-emitting part 332, and the extension line of the junction line of at least some adjacent display light-emitting parts 331 passes through the anti-peeking light-emitting part 332.

[0046] It should be noted that the anti-peeking light-emitting part 332 can be arranged corresponding to each pixel unit one by one, but it is not limited to this. The anti-peeking light-emitting part 332 can also be arranged only in some pixel units, which can be determined according to the specific situation. The anti-peeking light-emitting part 332 can be arranged at the junction of at least some adjacent display light-emitting parts 331 of the pixel unit, but it is not limited to this. The anti-peeking light-emitting part 332 can also be arranged at the junction of adjacent pixel units, which can be determined according to the specific situation.

[0047] The anti-peeking light-emitting part 332 is arranged at the junction of adjacent display light-emitting parts 331, which can prevent the anti-peeking light-emitting part 332 from occupying too much area of a certain display light-emitting part 331 and affecting the display effect of the display panel 10.

[0048] In addition, since the shape of the anti-peeking light-emitting part 332 is different from that of the pixel unit, and the size of the anti-peeking light-emitting part 332 is also different from that of the pixel unit. If the anti-peeking light-emitting part 332 is arranged outside the pixel unit, it will cause waste of the design space of the display panel 10 and affect the aperture ratio and pixel density of the display panel 10. In this application, the anti-peeking light-emitting part 332 is arranged at the junction of adjacent display light-emitting parts 331, that is, the anti-peeking light-emitting part 332 is correspondingly arranged in each pixel unit, which solves the arrangement problem of the anti-peeking light-emitting part 332 and the pixel unit, avoids waste of the design space of the display panel 10, and improves the aperture ratio and pixel density of the display panel 10.

[0049] For example, the anti-peeking light-emitting part 332 is arranged at the junction of the first light-emitting part 3311, the second light-emitting part 3312 and the third light-emitting part 3313, as Figure 2 shown.

[0050] The anti-peeking light-emitting part 332 is arranged at the junction of three display light-emitting parts 331, and the area of each display light-emitting part 331 occupied by the anti-peeking light-emitting part 332 will not be too large, which can improve the display effect of the display panel 10.

[0051] In some embodiments, the anti-peeking light-emitting part 332 is located at the junction of the first light-emitting part 3311 and the second light-emitting part 3312.

[0052] The luminous efficiency of the third light-emitting part 3313 is the lowest, and usually the occupied area of the third light-emitting part 3313 is the largest. The anti-peeping light-emitting part 332 is arranged at the junction of the first light-emitting part 3311 and the second light-emitting part 3312, without occupying the design space of the third light-emitting part 3313 with the lowest luminous efficiency, which is beneficial to improving the brightness and service life of the third light-emitting part 3313.

[0053] It should be noted that the anti-peeping light-emitting part 332 can be arranged at the junction of the first light-emitting part 3311, the second light-emitting part 3312 and the third light-emitting part 3313 or at the junction of the first light-emitting part 3311 and the second light-emitting part 3312, but not limited thereto. The anti-peeping light-emitting part 332 can also be arranged at the junction of the second light-emitting part 3312 and the third light-emitting part 3313, and the specific situation can be determined according to the actual situation.

[0054] In some embodiments, the orthographic projections of the anti-peeping unit 3321 and the display light-emitting part 331 on the substrate 100 are both rectangles, and the ratio of the length of the long side to the length of the short side of the rectangular orthographic projections of the anti-peeping unit 3321 and the display light-emitting part 331 is ≥1.5. The areas of the rectangular orthographic projections of the two anti-peeping units 3321 can be the same or different. When the areas of the rectangular orthographic projections of the two anti-peeping units 3321 are different, the area ratio range of the first anti-peeping unit 3321 to the second anti-peeping unit 3321 is 0.8~1.5.

[0055] Defining the ratio of the length of the long side to the length of the short side of the rectangular orthographic projection of the anti-peeping unit 3321 to be ≥1.5 can prevent the anti-peeping light of the central area of the anti-peeping unit 3321 from being completely blocked by the light-shielding unit 510, and improve the light utilization rate and brightness of the anti-peeping light-emitting part 332.

[0056] In some embodiments, the display panel 10 further includes a conductor part 610 and an eaves part 620. The conductor part 610 is formed on the side of the pixel defining part 321 away from the substrate 100, and the eaves part 620 is formed on the side of the conductor part 610 away from the substrate 100. The eaves part 620 protrudes relative to the conductor part 610, so that a recessed area is formed between the eaves part 620 and the pixel defining part 321. The recessed area is located on both sides of the conductor part 610 opposite to the pixel opening area 322. The light-emitting layer 330 and the cathode layer 340 are both formed by evaporation. The eaves part 620 is used to partition the light-emitting layer 330, and the conductor part 610 is used to connect the cathode layer 340.

[0057] It should be noted that the display panel 10 may include a conductor part 610 and an eaves part 620 for forming the light-emitting layer 330 and the cathode layer 340, but not limited thereto. The light-emitting layer 330 can also be formed by evaporation using a fine metal mask (FMM), and the cathode layer 340 covers the pixel defining layer 320 and the light-emitting layer 330 entirely, and the specific situation can be determined according to the actual situation.

[0058] With the improvement of the resolution of the display panel 10, a high-precision metal mask is used for vapor-depositing the light-emitting layer 330. The manufacturing cost of the high-precision metal mask is relatively high, and it is difficult to implement high-precision screen stretching technology and vapor-deposition alignment technology. The display panel 10 includes a conductor portion 610 and an eaves portion 620, which are used to form the structure of the light-emitting layer 330 and the cathode layer 340, and do not require a high-precision metal mask, which is beneficial to reducing the process difficulty and process cost.

[0059] In some embodiments, the manufacturing materials of the two anti-peeping units 3321 of the anti-peeping light-emitting portion 332 are different, and the light-emitting colors of the two anti-peeping units 3321 are correspondingly different. A pixel definition portion 321 is provided between the two anti-peeping units 3321, and a conductor portion 610 and an eaves portion 620 are correspondingly provided on the side of the pixel definition portion 321 between the two anti-peeping units 3321 away from the substrate 100 for separating the two anti-peeping units 3321.

[0060] The two anti-peeping units 3321 are separated by the conductor portion 610 and the eaves portion 620, which can avoid light crosstalk between the two anti-peeping units 3321.

[0061] In some embodiments, the anti-peeping unit 3321 is connected to one of the adjacent display light-emitting portions 331. For example, the first anti-peeping unit 3321 is connected to the first light-emitting portion 3311, and the second anti-peeping unit 3321 is connected to the second light-emitting portion 3312. The first anti-peeping unit 3321 is connected to the first light-emitting portion 3311, and the first anti-peeping unit 3321 and the first light-emitting portion 3311 can be made of the same organic light-emitting material and have the same light-emitting color; the second anti-peeping unit 3321 is connected to the second light-emitting portion 3312, and the second anti-peeping unit 3321 and the second light-emitting portion 3312 can be made of the same organic light-emitting material and have the same light-emitting color.

[0062] The first anti-peeping unit 3321 is connected to the first light-emitting portion 3311, and the second anti-peeping unit 3321 is connected to the second light-emitting portion 3312. The anti-peeping light-emitting portion 332 emits yellow light, and it is easier to form a visual contrast between the anti-peeping light and the display light, thereby improving the anti-peeping effect. In addition, the first anti-peeping unit 3321 is connected to the first light-emitting portion 3311, and the second anti-peeping unit 3321 is connected to the second light-emitting portion 3312. The conductor portion 610 and the eaves portion 620 between the anti-peeping unit 3321 and the connected display light-emitting portion 331 can be omitted, thereby improving the pixel aperture ratio to a certain extent.

[0063] It should be noted that since the anti-peeping light-emitting part 332 is provided at the junction of the three display light-emitting parts 331, the light of the anti-peeping light-emitting part 332 can be a mixed light of red light and green light, or a mixed light of red light and blue light or a mixed light of blue light and green light, which can be determined according to the specific situation. In addition, the first anti-peeping unit 3321 may also include the manufacturing materials of any two of the first light-emitting part 3311, the second light-emitting part 3312, and the third light-emitting part 3313. The first anti-peeping unit 3321 is a stack of two organic light-emitting materials, and the second anti-peeping unit 3321 includes the manufacturing material of the remaining one display light-emitting part 331. The light-emitting color of the anti-peeping light-emitting part 332 is white.

[0064] In some embodiments, the manufacturing materials of the two anti-peeping units 3321 of the anti-peeping light-emitting part 332 are the same, and a pixel definition part 321 is provided between the two anti-peeping units 3321, as Figure 5 shown.

[0065] The manufacturing materials of the two anti-peeping units 3321 are the same, and the two anti-peeping units 3321 can be connected, as Figure 3 shown. The conductor part 610 and the eaves part 620 between the two anti-peeping units 3321 can be omitted, thereby improving the pixel aperture ratio to a certain extent.

[0066] In some embodiments, the manufacturing material of the anti-peeping light-emitting part 332 is the same as that of the first light-emitting part 3311 or the second light-emitting part 3312.

[0067] The manufacturing material of the anti-peeping light-emitting part 332 is the same as that of the first light-emitting part 3311, and the light-emitting color of the anti-peeping light-emitting part 332 is the same as that of the first light-emitting part 3311. The first light-emitting part 3311 has the highest light-emitting efficiency, and the brightness of the first light-emitting part 3311 is the largest under the same data voltage. The light-emitting color of the anti-peeping light-emitting part 332 is the same as that of the first light-emitting part 3311, and the occupied area of the anti-peeping light-emitting part 332 is smaller, and the influence on the resolution of the display panel 10 is the smallest.

[0068] It should be noted that the light-emitting color of the anti-peeping light-emitting part 332 may be the same as that of the first light-emitting part 3311, but not limited to this. The light-emitting color of the anti-peeping light-emitting part 332 may also be the same as that of the second light-emitting part 3312, which can be determined according to the specific situation. In some embodiments, the light-emitting color of the anti-peeping light-emitting part 332 may also be the same as that of the third light-emitting part 3313.

[0069] Since the anti-peeping light-emitting part 332 does not emit light in the normal mode, when the ratio of the occupied area of the anti-peeping light-emitting part 332 to the occupied area of the first light-emitting part 3311 is relatively large, the brightness difference between the first light-emitting part 3311 and the anti-peeping light-emitting part 332 is obvious, which has a great impact on the display effect of the display panel 10. The light-emitting color of the anti-peeping light-emitting part 332 is the same as that of the second-brightest display light-emitting part 331 (i.e., the second light-emitting part 3312), which can reduce the brightness difference between the anti-peeping light-emitting part 332 and the second light-emitting part 3312 and reduce the impact on the display effect of the display panel 10.

[0070] In some embodiments, the anti-peeping light-emitting part 332 includes the manufacturing materials of at least any two of the first light-emitting part 3311, the second light-emitting part 3312, and the third light-emitting part 3313, and the anti-peeping light-emitting part 332 is a stack of two or three organic light-emitting materials. For example, the anti-peeping light-emitting part 332 includes the manufacturing materials of the first light-emitting part 3311 and the second light-emitting part 3312, and the light-emitting color of the anti-peeping light-emitting part 332 is yellow; the anti-peeping light-emitting part 332 includes the manufacturing materials of the first light-emitting part 3311, the second light-emitting part 3312, and the third light-emitting part 3313, and the light-emitting color of the anti-peeping light-emitting part 332 is white.

[0071] The light-emitting color of the anti-peeping light-emitting part 332 is yellow or white, and the anti-peeping light-emitting part 332 has a greater brightness, so it is easier to form a visual contrast between the anti-peeping light and the display light, thereby improving the anti-peeping effect.

[0072] In some embodiments, the light-shielding unit 510 includes a main body part 511 and an auxiliary light-shielding part 512, as Figure 6 shown, the auxiliary light-shielding part 512 is located on the side of the main body part 511 away from the substrate 100. The orthographic projection of the anti-peeping unit 3321 on the substrate 100 is located within the orthographic projection of the main body part 511 on the substrate 100, and the orthographic projection of the main body part 511 on the substrate 100 is located within the orthographic projection of the auxiliary light-shielding part 512 on the substrate 100. The main body part 511 is used to define the light-emitting angle of the anti-peeping unit 3321 to form an anti-peeping viewing angle a, and the auxiliary light-shielding part 512 is used to block the diffracted light within the anti-peeping viewing angle a.

[0073] In some technical solutions, when the display panel 10 displays a picture in the anti-peeping mode, the user can also see some of the anti-peeping units 3321 within the anti-peeping viewing angle a. That is, the light of the anti-peeping unit 3321 that is not expected to appear within the anti-peeping viewing angle a interferes with the light of the display light-emitting part 331, affecting the display effect of the display panel 10 within the anti-peeping viewing angle a. The anti-peeping viewing angle a is determined by the light-shielding angle of the light-shielding unit 510. The larger the light-shielding range of the light-shielding unit 510, the larger the anti-peeping viewing angle a. The applicant found that the user can also see some of the anti-peeping units 3321 within the anti-peeping viewing angle a because some anti-peeping light rays bypass the light-shielding unit 510 acting as an obstacle and continue to propagate.

[0074] The light-shielding unit 510 includes a main body portion 511 and an auxiliary light-shielding portion 512. The auxiliary light-shielding portion 512 blocks the diffracted light within the anti-peeping viewing angle a, which can reduce or eliminate the anti-peeping light that is not expected to appear within the anti-peeping viewing angle in the anti-peeping mode, and improve the display effect of the display panel 10 within the anti-peeping viewing angle.

[0075] In some embodiments, the display panel 10 further includes a color filter layer 520. The color filter layer 520 is formed on the side of the encapsulation layer 400 away from the substrate 100. The orthographic projection of the display light-emitting part 331 on the substrate 100 is located within the orthographic projection of the color filter layer 520 on the substrate 100. The color filter layer 520 may include green color filters, red color filters, and blue color filters that are arranged at intervals. The green color filters are arranged in one-to-one correspondence with the first light-emitting part 3311, the red color filters are arranged in one-to-one correspondence with the second light-emitting part 3312, and the blue color filters are arranged in one-to-one correspondence with the third light-emitting part 3313. The display panel 10 further includes a black matrix, and the black matrix is formed on the side of the encapsulation layer 400 away from the substrate 100 and is located in the surrounding areas of the green color filters, red color filters, and blue color filters. A light-emitting gap is formed between the light-shielding unit 510, the color filter layer 520, and the black matrix. The light-emitting gap surrounds the light-shielding unit 510, and a transparent organic filling layer 530 may be provided in the light-emitting gap.

[0076] In order to improve the contrast of the display panel 10 and achieve an integrated black effect, the display panel 10 usually adopts a polarizer (POL). The polarizer can effectively reduce the reflection intensity of the external ambient light on the screen. However, the light transmittance of the polarizer is generally only about 44%. In order to achieve a higher light-emitting brightness, more power consumption is required. In addition, the polarizer has a large thickness and a brittle material, which is not conducive to the development of dynamic bending products.

[0077] The display panel 10 includes a color filter layer 520. The color filter layer 520 can block external light and filter the light emitted from the display light-emitting part 331, reducing the reflection intensity of the external ambient light on the screen. The polarizer of the display panel 10 can be cancelled. Not only will the thickness of the display panel 10 be greatly reduced, but also the light extraction rate can be increased from 44% to 80%, greatly increasing the light emission brightness. Thus, the power consumption of the display panel 10 is reduced.

[0078] Embodiment 2 The main difference between Embodiment 2 and Embodiment 1 lies in the different shapes of the anti-peeping unit 3321.

[0079] See Figures 7 to 10 As shown, at least part of the edge of the orthographic projection of the light-shielding unit 510 on the substrate 100 is arc-shaped.

[0080] At least part of the edge of the light-shielding unit 510 is an arc edge, which can reduce the intensity of diffracted light, reduce or eliminate the unwanted anti-peeping light within the anti-peeping viewing angle in the anti-peeping mode, and improve the display effect of the display panel 10 within the anti-peeping viewing angle.

[0081] In some embodiments, the orthographic projection of the light-shielding unit 510 on the substrate 100 is circular, elliptical or a rounded polygon. The rounded polygon is, for example, a rounded rectangle, a rounded regular hexagon, a rounded regular octagon, and a rounded regular decagon, etc. The shapes of the main body part 511 and the auxiliary light-shielding part 512 are the same or approximate figures, and the orthographic projections of the main body part 511 and the auxiliary light-shielding part 512 on the substrate 100 are correspondingly circular, elliptical or a rounded polygon.

[0082] The orthographic projection of the light-shielding unit 510 on the substrate 100 being circular, elliptical or a rounded polygon can further reduce the intensity of diffracted light and reduce or eliminate the unwanted anti-peeping light within the anti-peeping viewing angle in the anti-peeping mode.

[0083] In some embodiments, the adjacent sides of two light-shielding units 510 corresponding to the same anti-peeping light-emitting part 332 are straight edges or arc edges, and the two light-shielding units 510 are symmetric in the row direction or the column direction. For example, the orthographic projections of the two light-shielding units 510 on the substrate 100 are circular with a strip-shaped gap in the middle, as Figure 7 shown, or the orthographic projections of the two light-shielding units 510 on the substrate 100 are both elliptical, as Figure 8 shown.

[0084] The two light-shielding units 510 being symmetric in the row direction or the column direction makes the structure of the light-shielding unit 510 simpler and is beneficial to reducing the manufacturing cost of the display panel 10.

[0085] In some embodiments, the adjacent sides of two light-shielding units 510 corresponding to the same anti-peeking light-emitting part 332 are arc-shaped sides, and the adjacent arc-shaped sides of the two light-shielding units 510 are concentric. For example, the orthographic projection of the first light-shielding unit 510 on the substrate 100 is circular, the orthographic projection of the second light-shielding unit 510 on the substrate 100 is a partial circle, and the first light-shielding unit 510, the second light-shielding unit 510, and the light-emitting gap therebetween form a circular pattern, as Figure 9 shown, or the orthographic projection of the first light-shielding unit 510 on the substrate 100 is oval, the adjacent sides of the orthographic projection of the second light-shielding unit 510 on the substrate 100 and the first light-shielding unit 510 are elliptical arcs, the non-adjacent sides of the orthographic projection of the second light-shielding unit 510 on the substrate 100 and the first light-shielding unit 510 are elliptical arcs, and the orthographic projection of the second light-shielding unit 510 on the substrate 100 is a partial ellipse.

[0086] The adjacent arc-shaped sides of the two light-shielding units 510 are concentric. The non-arc sides of the light-shielding units 510 are fewer, and the non-arc sides of the outer contour of the combination of the two light-shielding units 510 are fewer, which is beneficial to reducing the intensity of diffracted light and reducing or eliminating the anti-peeking light that is not expected to appear within the anti-peeking viewing angle in the anti-peeking mode.

[0087] In some embodiments, the orthographic projection of the anti-peeking unit 3321 on the substrate 100 has the same shape as but different size from the orthographic projection of the light-shielding unit 510 on the substrate 100.

[0088] The orthographic projection of the anti-peeking light-emitting part 332 on the substrate 100 has the same shape as the orthographic projection of the light-shielding unit 510 on the substrate 100, and the anti-peeking viewing angles a at different viewing angles are the same, which can improve the display effect of the display panel 10.

[0089] Embodiment III See Figure 11 As shown, in this embodiment, the display device includes a display panel 10 and a main board 20. The main board 20 is connected to the display panel 10, and the display panel 10 includes the display panel 10 disclosed in Embodiment I and Embodiment II.

[0090] In this embodiment, the display device includes a display panel 10. The display panel 10 includes a substrate 100, a driving circuit layer 200, a pixel definition layer 320, a light-emitting layer 330, a packaging layer 400, and a light-shielding unit 510. The driving circuit layer 200 is disposed on one side of the substrate 100. The pixel definition layer 320 is formed on the side of the driving circuit layer 200 away from the substrate 100. The pixel definition layer 320 includes a plurality of pixel openings 322 and a pixel definition portion 321 surrounding the pixel openings 322. The light-emitting layer 330 is formed within the pixel openings 322. The light-emitting layer 330 includes a plurality of display light-emitting portions 331 and a plurality of anti-peeping light-emitting portions 332. Each anti-peeping light-emitting portion 332 includes two anti-peeping units 3321. The two anti-peeping units 3321 are spaced apart in the row direction or the column direction. The packaging layer 400 is formed on the side of the pixel definition layer 320 and the light-emitting layer 330 away from the substrate 100. A plurality of light-shielding units 510 are spaced apart and formed on the side of the packaging layer 400 away from the substrate 100. The orthographic projection of the anti-peeping unit 3321 on the substrate 100 is located within the orthographic projection of the light-shielding unit 510 on the substrate 100. The two anti-peeping units 3321 of the anti-peeping light-emitting portion 332 are spaced apart in the row direction or the column direction, and a light-emitting gap is formed between the corresponding two light-shielding units 510. Compared with the integral anti-peeping light-emitting portion 332, it can prevent the anti-peeping light in the central region of the anti-peeping light-emitting portion 332 from being completely blocked by the light-shielding unit 510, improve the light utilization rate and brightness of the anti-peeping light-emitting portion 332, and enhance the anti-peeping effect of the display panel 10 and the display device.

[0091] The terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0092] In this application, unless otherwise clearly specified and limited, the terms "assembly", "connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0093] In the description of this specification, the descriptions referring to the terms "some embodiments", "exemplarily", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0094] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and the description of the present application shall fall within the scope covered by the patent of the present application.

Claims

1. A display panel, comprising a base substrate and a driving circuit layer, wherein the driving circuit layer is arranged on one side of the base substrate, characterized in that: The display panel further includes: A pixel definition layer is formed on the side of the driving circuit layer away from the base substrate, and the pixel definition layer includes a plurality of pixel opening areas and a pixel definition portion surrounding the pixel opening areas; A light-emitting layer is formed in the pixel opening area, the light-emitting layer includes a plurality of display light-emitting parts and a plurality of anti-peeping light-emitting parts, the anti-peeping light-emitting part includes two anti-peeping units, and the two anti-peeping units are arranged at intervals along the row direction or the column direction; An encapsulation layer is formed on a side of the pixel definition layer and the light emitting layer away from the base substrate; A shading unit, wherein a plurality of the shading units are spaced apart and formed on a side of the encapsulation layer away from the base substrate, an orthographic projection of the display light emitting portion on the base substrate is spaced apart from an orthographic projection of the shading unit on the base substrate, and an orthographic projection of the anti-peep unit on the base substrate is located within the orthographic projection of the shading unit on the base substrate.

2. The display panel according to claim 1, characterized in that: The multiple display light-emitting parts include a first light-emitting part, a second light-emitting part and a third light-emitting part, the light-emitting efficiency of the first light-emitting part is greater than the light-emitting efficiency of the second light-emitting part, the light-emitting efficiency of the second light-emitting part is greater than the light-emitting efficiency of the third light-emitting part, the display panel includes a plurality of pixel units, the pixel unit includes one first light-emitting part, one second light-emitting part and one third light-emitting part, the first light-emitting part and the second light-emitting part are arranged at intervals along a first direction, the first light-emitting part and the second light-emitting part are located on one side of the third light-emitting part in a second direction, the second direction is perpendicular to the first direction, and in the first direction, the first light-emitting part and the second light-emitting part are aligned with the third light-emitting part as a whole; The anti-peeping luminous part is arranged in at least part of the pixel units, and the anti-peeping luminous part is arranged at the junction of at least part of the adjacent display luminous parts, and the extension line of the junction line of at least part of the adjacent display luminous parts passes through the anti-peeping luminous part.

3. The display panel according to claim 2, characterized in that: The two anti-peeping units of the anti-peeping luminous portion have the same luminous color, and the pixel defining portion is arranged between the two anti-peeping units.

4. The display panel according to claim 3, characterized in that: The anti-peeping light-emitting portion is made of the same material as the first light-emitting portion or the second light-emitting portion.

5. The display panel according to claim 2, characterized in that: The two anti-peep units of the anti-peep light-emitting portion have different luminous colors, the pixel definition portion is arranged between the two anti-peep units, the display panel also includes a conductor portion and an eaves portion, the conductor portion is at least formed on a side of the pixel definition portion away from the base substrate between the two anti-peep units, the eaves portion is formed on a side of the conductor portion away from the base substrate, the eaves portion protrudes relative to the conductor portion, so that a recessed area is formed between the eaves portion and the pixel definition portion, the recessed area is located on two sides of the conductor portion opposite to the pixel opening area, and the eaves portion is used to isolate the light-emitting layer.

6. The display panel according to claim 5, characterized in that: The privacy protection unit is connected to one of the adjacent display light emitting parts.

7. The display panel according to claim 1 or 2, characterized in that: At least part of the edge of the orthographic projection of the shading unit on the base substrate is arc-shaped, and the shape of the orthographic projection of the shading unit on the base substrate includes a circle, an ellipse or a rounded polygon.

8. The display panel according to claim 3, characterized in that: The adjacent sides of the two shading units corresponding to the same anti-peeping light-emitting portion are straight sides or arc-shaped sides, and the two shading units are symmetrical in the row direction or the column direction; or The adjacent sides of the two shading units corresponding to the same anti-peeping light-emitting portion are arc-shaped sides, and the adjacent arc-shaped sides of the two shading units are concentric.

9. The display panel according to claim 1, characterized in that: The shading unit includes a main body and an auxiliary shading portion, the auxiliary shading portion is located on the side of the main body away from the base substrate, the orthographic projection of the anti-peeping unit on the base substrate is located within the orthographic projection of the main body on the base substrate, the orthographic projection of the main body on the base substrate is located within the orthographic projection of the auxiliary shading portion on the base substrate, the main body is used to limit the light output angle of the anti-peeping unit to form an anti-peeping viewing angle, and the auxiliary shading portion is used to block the diffracted light within the anti-peeping viewing angle.

10. A display device, characterized in that: include: The display panel according to any one of claims 1 to 9; A main board is connected to the display panel.

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