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 part, the driving circuit layer, the pixel definition layer, the light-emitting layer, the packaging layer and the shading part are sequentially formed on the substrate, the pixel definition layer comprises a plurality of pixel opening areas, and the light-emitting layer is at least formed in the pixel opening areas; 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 at least two peep-proof units, the shading part comprises at least two shading units which are arranged at intervals, the adjacent edges of the adjacent shading units in the shading part are arranged in a concave-convex staggered mode, and the shading units and the peep-proof units are arranged in a one-to-one correspondence mode. The adjacent edges of the adjacent shading units in the shading part are arranged in the concave-convex staggered mode, the light emitting gaps are formed between the adjacent shading units, peep-proof light in the center area of the peep-proof light-emitting part can be prevented from being completely shielded by the shading part, the light utilization rate and brightness of the peep-proof light-emitting part are improved, and the peep-proof effect of the display panel is enhanced.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display panels have high clarity and wide viewing angles, which can provide users with a better visual experience. However, users sometimes also hope that the viewing angle of the display panel can be adjusted to a smaller value (anti-peeping) to effectively protect business secrets and personal privacy.

[0003] To prevent privacy, some display panels have pixel units that include both display pixels and privacy pixels, with a light-shielding structure placed above the privacy pixels. In privacy mode, when the privacy pixels are on, the light-shielding structure blocks the narrow-angle light from the privacy pixels. However, the wide-angle light from the privacy pixels remains unblocked, potentially interfering with the display pixels.

[0004] Organic light-emitting diodes (OLEDs) emit the highest brightness at 0°, and the brightness decreases significantly as the viewing angle increases. The light emitted by privacy pixels at small angles is blocked by the shading structure, meaning that the area with the highest brightness is obscured by the shading structure. As a result, the brightness of privacy pixels is lower outside the privacy viewing angle, affecting the privacy protection effect of the display panel. Summary of the Invention

[0005] The purpose of the present application is to provide a display panel and a display device to increase the brightness of anti-peeping pixels and enhance the anti-peeping effect of the display panel.

[0006] To achieve the above-mentioned object, the present application provides 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, and the display panel further comprises:

[0007] A pixel definition layer is formed on a side of the driving circuit layer away from the base substrate, the pixel definition layer comprising a plurality of pixel opening areas and a pixel definition portion surrounding the pixel opening areas;

[0008] a light-emitting layer formed in the pixel opening area, the light-emitting layer including a plurality of display light-emitting portions and a plurality of privacy-prevention light-emitting portions, the privacy-prevention light-emitting portion including at least two privacy-prevention units spaced apart;

[0009] An encapsulation layer is formed on a side of the pixel definition layer and the light emitting layer away from the base substrate;

[0010] A light-shielding portion is formed on a side of the encapsulation layer away from the base substrate, the light-shielding portion includes at least two spaced-apart light-shielding units, adjacent edges of adjacent light-shielding units in the light-shielding portion are staggered with concave and convex portions, and the orthographic projection of the anti-peeping unit on the light-shielding portion is located within the light-shielding unit.

[0011] Optionally, the orthographic projection of the privacy protection unit on the shading portion has the same shape as the shading unit and is centrally aligned.

[0012] Optionally, the shading portion includes two shading units, and the two shading units are arranged at intervals along the row direction or the column direction; or

[0013] The light shielding portion includes four light shielding units arranged at intervals, and the four light shielding units are arranged in an array along the row direction and the column direction.

[0014] Optionally, in a pair of the shading units with adjacent edges alternately arranged in convex and concave shapes: at least a portion of the adjacent edges of the first shading unit and the second shading unit bulge outward to form a convex area, and at least a portion of the adjacent edges of the second shading unit and the first shading unit are concave inward to form a groove area, and the distance between the convex area and the groove area is equal to the distance between the two shading units.

[0015] Optionally, the protruding area is rectangular, semicircular or inferior arc-shaped.

[0016] Optionally, in a pair of the light-shielding units with adjacent sides arranged in an alternating concave and convex manner: the side of the first light-shielding unit close to the second light-shielding unit and the side of the second light-shielding unit close to the first light-shielding unit are parallel curves.

[0017] Optionally, at least a portion of adjacent sides of the shading unit and the display light-emitting portion is provided with the convex area or the concave area, and the display light-emitting portion and the anti-peeping unit are alternately arranged in convex and concave shapes.

[0018] 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, and 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, and 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 spaced apart along a first direction, and 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;

[0019] The anti-peeping luminous portion is provided in at least some of the pixel units. The anti-peeping luminous portion is provided at the junction of at least some of the adjacent display luminous portions, and an extension line of the junction line of at least some of the adjacent display luminous portions passes through the anti-peeping luminous portion.

[0020] Optionally, the two anti-peeping units in the anti-peeping light-emitting portion are respectively connected to different display light-emitting portions, and the connected anti-peeping units and the display light-emitting portions emit the same light color; or

[0021] At least one of the privacy protection units is connected to two different display light-emitting parts, and the privacy protection unit includes the light-emitting materials of the two different display light-emitting parts.

[0022] The present application also provides a display device, comprising:

[0023] the display panel;

[0024] A mainboard is connected to the display panel.

[0025] The display panel and display device disclosed in this application have the following beneficial effects:

[0026] In the present application, the display panel includes a base substrate, and a driving circuit layer, a pixel definition layer, a light-emitting layer, an encapsulation layer, and a light-shielding portion sequentially formed on the base substrate. The pixel definition layer includes a plurality of pixel opening areas. The light-emitting layer is formed at least within the pixel opening area. The light-emitting layer includes a plurality of display light-emitting portions and a plurality of anti-peeping light-emitting portions. Each anti-peeping light-emitting portion includes at least two anti-peeping units. The light-shielding portion includes at least two spaced-apart light-shielding units. The adjacent edges of adjacent light-shielding units in the light-shielding portion are staggered in a concave-convex manner. The light-shielding units are arranged in a one-to-one correspondence with the anti-peeping units. The adjacent edges of adjacent light-shielding units in the light-shielding portion are staggered in a concave-convex manner. Light-emitting gaps are formed between adjacent light-shielding units, which can prevent the anti-peeping light in the central area of the anti-peeping light-emitting portion from being completely blocked by the light-shielding portion, thereby improving the light utilization rate and brightness of the anti-peeping light-emitting portion and enhancing the anti-peeping effect of the display panel.

[0027] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0028] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0030] Figure 1 This is a schematic top view of the shading portion in Example 1 of the present application.

[0031] Figure 2 It is a cross-sectional schematic diagram of the display panel in the first embodiment of the present application.

[0032] Figure 3 This is a schematic diagram of the array arrangement of four anti-peeping units in the shading portion in Example 1 of the present application.

[0033] Figure 4 Schematic diagram showing the staggered arrangement of the light-emitting portion and the anti-peeping unit in the first embodiment of the present application.

[0034] Figure 5 This is a schematic diagram of the anti-peeping light-emitting portion located in the pixel unit in the first embodiment of the present application.

[0035] Figure 6 It is a structural diagram of the display device in Example 2 of the present application.

[0036] Description of reference numerals:

[0037] 10. Display panel; 20. Mainboard;

[0038] 100, base substrate; 200, driving circuit layer;

[0039] 310, anode; 320, pixel definition layer; 321, pixel definition portion; 322, pixel opening region; 330, light-emitting layer; 331, display light-emitting portion; 3311, first light-emitting portion; 3312, second light-emitting portion; 3313, third light-emitting portion; 332, privacy protection light-emitting portion; 3321, privacy protection unit; 340, cathode layer;

[0040] 400, encapsulation layer; 410, first inorganic encapsulation layer; 420, organic encapsulation layer; 430, second inorganic encapsulation layer;

[0041] 510, light shielding portion; 511, light shielding unit; 5111, protruding area; 5112, groove area;

[0042] 610, conductor part; 620, eaves part. DETAILED DESCRIPTION

[0043] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many 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 thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0044] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0045] The present application is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted 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 with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0046] Example 1

[0047] See also Figure 1 and Figure 2 As shown, in this embodiment, the display panel 10 includes a base substrate 100, a driving circuit layer 200, an anode 310, a pixel definition layer 320, a light-emitting layer 330, a cathode layer 340, an encapsulation layer 400, and a light shielding portion 510. The driving circuit layer 200 is disposed on one side of the base substrate 100. The base 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 base substrate 100. Each anode 310 can be connected to a pixel driving circuit.

[0048] The pixel definition layer 320 is formed on the side of the driving circuit layer 200 away from the base 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. Specifically, an opening extending to the anode 310 is etched in the pixel definition layer 320. The area where this opening is located is the pixel opening region 322. The pixel definition portion 321 defines the pixel opening region 322. The pixel definition portion 321 covers the edge region of the anode 310, while the pixel opening region 322 exposes the center region of the anode 310.

[0049] The light-emitting layer 330 is formed at least within the pixel opening region 322 and may also extend outside the pixel opening region 322. The light-emitting layer 330 is connected to the anode 310. The light-emitting layer 330 includes multiple display light-emitting portions 331 and multiple privacy-preventing light-emitting portions 332. Both the display light-emitting portions 331 and the privacy-preventing light-emitting portions 332 are disposed within the pixel opening region 322. Each display light-emitting portion 331 is connected to an anode 310, and each privacy-preventing light-emitting portion 332 is connected to an anode 310. The corresponding anodes 310 of the privacy-preventing light-emitting portions 332 may be connected. The cathode layer 340 is formed on the side of the pixel definition layer 320 and the light-emitting layer 330 away from the base substrate 100.

[0050] Three or four display light-emitting sections 331 of different luminous colors constitute a pixel unit, and multiple pixel units are arranged in an array along the row and column directions to display an image. Each anti-peeping light-emitting section 332 includes at least two anti-peeping units 3321. It should be understood that the anti-peeping units 3321 belonging to the same anti-peeping light-emitting section 332 are located within the same pixel opening area 322 or respectively within two pixel opening areas 322. The anti-peeping units 3321 belonging to the same anti-peeping light-emitting section 332 can share a common anode 310.

[0051] The encapsulation layer 400 is formed on the side of the cathode layer 340 away from the base 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, which are formed in sequence. Multiple light shielding portions 510 are spaced apart and formed on the side of the encapsulation layer 400 away from the base substrate 100. The light shielding portions 510 correspond one-to-one with the anti-peeping light-emitting portions 332. The light shielding portions 510 can be made of a metal material or a black organic material. The orthographic projection of the display light-emitting portion 331 on the base substrate 100 is spaced apart from the orthographic projection of the light shielding portions 510 on the base substrate 100.

[0052] The light shielding portion 510 includes at least two spaced-apart light shielding units 511. The adjacent edges of adjacent light shielding units 511 in the light shielding portion 510 are arranged in a staggered manner. For example, in a pair of light shielding units 511 with staggered adjacent edges, a protruding area 5111 or a recessed area 5112 is provided on the side of the first light shielding unit 511 proximate to the second light shielding unit 511, or a protruding area 5111 and a recessed area 5112 are provided on the side of the first light shielding unit 511 proximate to the second light shielding unit 511, and a corresponding protruding area 5111 or recessed area 5112 is provided on the side of the second light shielding unit 511 proximate to the first light shielding unit 511. The protruding area 5111 and the recessed area 5112 have the same shape, and the adjacent edges between them are parallel curves. The light shielding units 511 are arranged in a one-to-one correspondence with the privacy protection units 3321, and the orthographic projection of the privacy protection units 3321 on the light shielding portion 510 is located within the light shielding units 511.

[0053] The display mode of the display panel 10 includes a normal mode and an anti-peeping mode. In the anti-peeping mode, both the display light emitting unit 331 and the anti-peeping light emitting unit 332 emit light, and the light shielding unit 510 blocks the small-angle light emitted by the anti-peeping light emitting unit 332. The large-angle light emitted by the anti-peeping light emitting unit 332 is not blocked, which can interfere with the display of the display light emitting unit 331, thereby achieving wide-angle anti-peeping. In the normal mode, the anti-peeping light emitting unit 332 does not emit light, the display light emitting unit 331 emits light normally, and the display panel 10 can display normally. In other words, in the anti-peeping mode, the display image within the anti-peeping viewing angle (usually around 25°) is not disturbed, while the display image outside the anti-peeping viewing angle will be disturbed, thereby achieving wide-angle anti-peeping.

[0054] In some technical solutions, the two shading units 511 of the shading portion 510 are arranged at intervals along the row direction or the column direction, and a light-emitting gap is formed between the two shading units 511. Correspondingly, the two anti-peeping units 3321 of the anti-peeping luminous portion 332 are also arranged at intervals along the row direction or the column direction. Compared with the integral shading portion 510 and the anti-peeping luminous portion 332, the anti-peeping light in the central area of the anti-peeping luminous portion 332 can be prevented from being completely blocked by the shading portion 510, thereby improving the light utilization rate and brightness of the anti-peeping luminous portion 332.

[0055] In the present application, the adjacent edges of adjacent shading units 511 in the shading portion 510 are arranged in a staggered manner of concave and convex. Compared with the scheme in which two shading units 511 are arranged at intervals along the row direction or column direction, the light output gap is a curved groove, and the light output gap includes a row direction extension portion and a column direction extension portion, which can further improve the light utilization rate and brightness of the anti-peeping light-emitting portion 332.

[0056] The organic light-emitting diode (OLED) has the highest brightness at 0°, and the brightness decreases significantly as the viewing angle increases. The light emitted by the privacy-preventing light-emitting portion 332 at small angles is blocked by the light-shielding portion 510. That is, the area with the highest brightness is blocked by the light-shielding portion 510. As a result, the brightness of the privacy-preventing light-emitting portion 332 is lower outside the privacy-preventing viewing angle, affecting the privacy-preventing effect of the display panel 10.

[0057] In the present application, the display panel 10 includes a base substrate 100, and a driving circuit layer 200, a pixel definition layer 320, a light-emitting layer 330, an encapsulation layer 400 and a light-shielding portion 510 formed in sequence on the base substrate 100. The pixel definition layer 320 includes a plurality of pixel opening areas 322. The light-emitting layer 330 is formed at least within the pixel opening area 322. The light-emitting layer 330 includes a plurality of display light-emitting portions 331 and a plurality of anti-peep light-emitting portions 332. Each anti-peep light-emitting portion 332 includes at least two anti-peep units 3321. The light-shielding portion 510 includes at least two spaced-apart light-shielding units 511. The adjacent edges of adjacent light-shielding units 511 in the light-shielding portion 510 are staggered in a concave and convex manner, and the light-shielding units 511 are arranged in a one-to-one correspondence with the anti-peep units 3321. The adjacent edges of adjacent shading units 511 in the shading portion 510 are arranged in an alternating manner, and light-emitting gaps are formed between the adjacent shading units 511, which can prevent the anti-peeping light in the central area of the anti-peeping luminous portion 332 from being completely blocked by the shading portion 510, thereby improving the light utilization rate and brightness of the anti-peeping luminous portion 332 and enhancing the anti-peeping effect of the display panel 10.

[0058] In some embodiments, the orthographic projection of the privacy protection unit 3321 on the shading portion 510 has the same shape as the shading unit 511 , and the orthographic projection of the privacy protection unit 3321 on the shading portion 510 is centered with the shading unit 511 .

[0059] The anti-peeping unit 3321 is aligned with the light shielding unit 511 in the center, and the anti-peeping angles of the display panel 10 in all directions are the same.

[0060] In some embodiments, the light shielding portion 510 includes two light shielding units 511 , and the two light shielding units 511 are spaced apart along the row direction or the column direction.

[0061] The two light shielding units 511 are spaced apart along the row direction or the column direction, and the two privacy protection units 3321 are also spaced apart along the row direction or the column direction. The brightness of the privacy protection light emitted by the privacy protection light emitting unit 332 in the row direction and the column direction are different. For example, the two privacy protection units 3321 are spaced apart along the row direction, the brightness of the privacy protection light emitted by the privacy protection light emitting unit 332 in the row direction is greater than the brightness of the privacy protection light emitted by the privacy protection light emitting unit 332 in the column direction, and the primary privacy protection direction of the display panel 10 is the row direction, i.e., the privacy protection effect in the row direction is better. The two privacy protection units 3321 are spaced apart along the column direction, the brightness of the privacy protection light emitted by the privacy protection light emitting unit 332 in the column direction is greater than the brightness of the privacy protection light emitted by the privacy protection light emitting unit 332 in the row direction, and the primary privacy protection direction of the display panel 10 is the column direction, i.e., the privacy protection effect in the column direction is better.

[0062] In some embodiments, the shading portion 510 includes four shading units 511 spaced apart from each other. Figure 3 As shown, four light shielding units 511 are arranged in an array along the row direction and the column direction.

[0063] The four shading units 511 are arranged in an array along the row direction and the column direction, and the four anti-peeping units 3321 are also arranged in an array along the row direction and the column direction. The brightness of the anti-peeping light of the anti-peeping light-emitting portion 332 in the row direction is the same or approximately the same as the brightness of the anti-peeping light of the anti-peeping light-emitting portion 332 in the column direction. The anti-peeping effect of the display panel 10 in both the row direction and the column direction can be improved.

[0064] In some embodiments, in a pair of light shielding units 511 with adjacent sides arranged in an alternating pattern of concave and convex, at least a portion of the adjacent sides of the first light shielding unit 511 and the second light shielding unit 511 are outwardly convex to form a convex region 5111, and at least a portion of the adjacent sides of the second light shielding unit 511 and the first light shielding unit 511 are inwardly concave to form a concave region 5112. The distance between the convex region 5111 and the concave region 5112 is equal to the distance between the two light shielding units 511.

[0065] It should be noted that each light shielding unit 511 may include one of a protruding area 5111 and a groove area 5112, but is not limited thereto. Each light shielding unit 511 may also include a protruding area 5111 and a groove area 5112, depending on the specific situation.

[0066] The adjacent edges of adjacent shading units 511 in the shading portion 510 are arranged in a staggered manner, and the light-emitting gaps between adjacent shading units 511 are curved grooves. The light-emitting gaps include row-direction extending portions and column-direction extending portions, which can further improve the light utilization rate and brightness of the anti-peeping light-emitting portion 332.

[0067] In some embodiments, the protruding area 5111 is semicircular and the recessed area 5112 is also semicircular, or the protruding area 5111 is a minor arc shape and the recessed area 5112 is also a minor arc shape.

[0068] The shading unit 511 is rectangular and the anti-peeping unit 3321 is rectangular. When the display panel 10 displays images in anti-peeping mode, the user can also see part of the anti-peeping unit 3321 within the anti-peeping viewing angle. That is, the light from the anti-peeping unit 3321 that does not appear within the anti-peeping viewing angle interferes with the light from the display light-emitting portion 331, affecting the display effect of the display panel 10 within the anti-peeping viewing angle. The anti-peeping viewing angle is determined by the shading angle of the shading unit 511. The larger the shading range of the shading unit 511, the larger the anti-peeping viewing angle. The applicant has discovered that the user can also see part of the anti-peeping unit 3321 within the anti-peeping viewing angle due to light diffraction, that is, part of the anti-peeping light bypasses the shading unit 511 as an obstacle and continues to propagate.

[0069] The protruding area 5111 is semicircular or in the shape of a minor arc, which can reduce the intensity of diffracted light, reduce or eliminate 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.

[0070] It should be noted that the protruding area 5111 is semicircular or arcuate, but is not limited thereto. The protruding area 5111 and the recessed area 5112 can also be rectangular, depending on the specific situation. The rectangular protruding area 5111 and the recessed area 5112 simplify the structures of the light shielding portion 510 and the anti-peeping light emitting portion 332, thereby reducing the manufacturing cost of the display panel 10.

[0071] In some embodiments, the adjacent edges of adjacent shading units 511 are parallel curves. That is, in a pair of shading units 511 whose adjacent edges are arranged in an alternating pattern of concave and convex, the edge of the first shading unit 511 proximal to the second shading unit 511 and the edge of the second shading unit 511 proximal to the first shading unit 511 are parallel curves. When the adjacent edges of adjacent shading units 511 are parallel curves, a light exit gap is formed between the adjacent shading units 511, and the width of the light exit gap is uniform along the length of the light exit gap. Furthermore, when the shading portion 510 includes four shading units 511 arranged in an array, the width of the light exit gap in the row direction can also be equal to the width of the light exit gap in the column direction.

[0072] A light-emitting gap is formed between adjacent shading units 511, and the width of the light-emitting gap is equal along the length direction of the light-emitting gap. This design can prevent the anti-peeping light in the central area of the anti-peeping light-emitting portion 332 from being completely blocked by the shading portion 510, thereby improving the light utilization rate and brightness of the anti-peeping light-emitting portion 332, and can also prevent the light-emitting gap from occupying too much design space of the anti-peeping light-emitting portion 332.

[0073] In some embodiments, at least part of the adjacent edges of the shading unit 511 and the display light-emitting portion 331 are provided with a protruding area 5111 or a groove area 5112. Since the shape of the anti-peeping unit 3321 is the same as that of the shading unit 511, the display light-emitting portion 331 and the anti-peeping unit 3321 are also arranged in an alternating concave and convex manner.

[0074] The display light emitting portion 331 and the privacy protection unit 3321 are alternately arranged in concave and convex shapes, thereby avoiding waste of design space of the display panel 10 and improving the aperture ratio and pixel density of the display panel 10 .

[0075] 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. For example, the first light-emitting portion 3311 may emit green light, the second light-emitting portion 3312 may emit red light, and the third light-emitting portion 3313 may emit blue light. The display panel 10 includes a plurality of pixel units, each including 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.

[0076] The first light emitting portion 3311 and the second light emitting portion 3312 are spaced apart along the 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 the 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, or vice versa. In the first direction, the first light emitting portion 3311 and the second light emitting portion 3312 are aligned with the third light emitting portion 3313 as a whole. Figure 5 As shown, the distance between the left side of the first light-emitting portion 3311 and the left side of the third light-emitting portion 3313 is equal to the distance between the right side of the second light-emitting portion 3312 and the right side of the third light-emitting portion 3313. The privacy-preventing light-emitting portion 332 corresponds one-to-one with each pixel unit and is located at the intersection of at least some adjacent display light-emitting portions 331. The edge of the display light-emitting portion 331 adjacent to the privacy-preventing light-emitting portion 332 is recessed inward to make way for the privacy-preventing light-emitting portion 332, and the extension line of the intersection of at least some adjacent display light-emitting portions 331 passes through the privacy-preventing light-emitting portion 332.

[0077] It should be noted that the anti-peeping light emitting portion 332 can be provided in a one-to-one correspondence with each pixel unit, but is not limited to this. The anti-peeping light emitting portion 332 can also be provided in only some pixel units, depending on the specific situation. The anti-peeping light emitting portion 332 can be provided at the intersection of at least some adjacent display light emitting portions 331 of the pixel unit, but is not limited to this. The anti-peeping light emitting portion 332 can also be provided at the intersection of adjacent pixel units, depending on the specific situation.

[0078] The anti-peeping light emitting portion 332 is disposed at the junction of adjacent display light emitting portions 331 , which can prevent the anti-peeping light emitting portion 332 from occupying too much area of a display light emitting portion 331 and affecting the display effect of the display panel 10 .

[0079] Furthermore, due to the staggered concave and convex arrangement of the display light-emitting portion 331 and the anti-peeping unit 3321, the shape of the anti-peeping light-emitting portion 332 differs from that of the display light-emitting portion 331, and the size of the anti-peeping light-emitting portion 332 also differs from that of the display light-emitting portion 331. If the anti-peeping light-emitting portion 332 were arranged outside the pixel unit, it would result in wasted design space of the display panel 10, affecting the aperture ratio and pixel density of the display panel 10. In the present application, the anti-peeping light-emitting portion 332 is arranged at the junction of adjacent display light-emitting portions 331, that is, the anti-peeping light-emitting portion 332 is correspondingly arranged in each pixel unit, which solves the arrangement problem of the anti-peeping light-emitting portion 332 and the pixel unit, avoids wasted design space of the display panel 10, and improves the aperture ratio and pixel density of the display panel 10.

[0080] For example, the anti-peeping light-emitting portion 332 is disposed at the junction of the first light-emitting portion 3311 , the second light-emitting portion 3312 and the third light-emitting portion 3313 .

[0081] The anti-peeping light emitting portion 332 is disposed at the junction of the three display light emitting portions 331 . The anti-peeping light emitting portion 332 does not occupy too much area of each display light emitting portion 331 , thereby improving the display effect of the display panel 10 .

[0082] In some embodiments, the anti-peeping light-emitting portion 332 is located at the junction of the first light-emitting portion 3311 and the second light-emitting portion 3312 .

[0083] The third light-emitting portion 3313 has the lowest luminous efficiency and typically occupies the largest area. The privacy-preventing light-emitting portion 332 is located at the junction of the first light-emitting portion 3311 and the second light-emitting portion 3312. This avoids occupying the design space of the third light-emitting portion 3313, which has the lowest luminous efficiency. This improves the brightness and lifespan of the third light-emitting portion 3313.

[0084] It should be noted that the anti-peeping light-emitting portion 332 can be set at the junction of the first light-emitting portion 3311, the second light-emitting portion 3312 and the third light-emitting portion 3313 or at the junction of the first light-emitting portion 3311 and the second light-emitting portion 3312, but is not limited to this. The anti-peeping light-emitting portion 332 can also be set at the junction of the second light-emitting portion 3312 and the third light-emitting portion 3313, depending on the specific situation.

[0085] In some embodiments, the display panel 10 further includes a conductor portion 610 and an eave portion 620. The conductor portion 610 is formed on the side of the pixel definition portion 321 away from the base substrate 100, and the eave portion 620 is formed on the side of the conductor portion 610 away from the base substrate 100. The eave portion 620 protrudes relative to the conductor portion 610, forming a recessed region between the eave portion 620 and the pixel definition portion 321. The recessed region is located on opposite sides of the conductor portion 610 from the pixel opening region 322. Both the light-emitting layer 330 and the cathode layer 340 are formed by vapor deposition. The eave portion 620 is used to block the light-emitting layer 330, and the conductor portion 610 is used to connect the cathode layer 340.

[0086] It should be noted that the display panel 10 may include a conductor portion 610 and an eaves portion 620 for forming the structure of the light-emitting layer 330 and the cathode layer 340, but is not limited thereto. The light-emitting layer 330 may also be evaporated using a high-precision metal mask (Fine Metal Mask, FMM), and the cathode layer 340 may cover the entire surface of the pixel definition layer 320 and the light-emitting layer 330, depending on the specific situation.

[0087] As the resolution of the display panel 10 increases, a high-precision metal mask is used to evaporate the light-emitting layer 330. However, the production cost of a high-precision metal mask is high, and it is difficult to implement high-precision meshing and vapor deposition alignment techniques. The display panel 10 includes a conductor portion 610 and an eave portion 620, which are used to form the structure of the light-emitting layer 330 and the cathode layer 340. This eliminates the need for a high-precision metal mask, which helps reduce process difficulty and cost.

[0088] In some embodiments, the multiple privacy protection units 3321 of the privacy protection light emitting portion 332 are made of the same material, and a pixel definition portion 321 is disposed between adjacent privacy protection units 3321 .

[0089] The multiple privacy protection units 3321 are made of the same material, adjacent privacy protection units 3321 can be connected, and the conductor part 610 and the eaves part 620 between adjacent privacy protection units 3321 can be omitted, thereby improving the pixel aperture ratio to a certain extent.

[0090] In some embodiments, the anti-peeping light-emitting portion 332 is made of the same material as the first light-emitting portion 3311 or the second light-emitting portion 3312 .

[0091] The anti-peeping light-emitting portion 332 is made of the same material as the first light-emitting portion 3311, and emits the same color as the first light-emitting portion 3311. The first light-emitting portion 3311 has the highest luminous efficiency and, under the same data voltage, the highest brightness. The anti-peeping light-emitting portion 332 emits the same color as the first light-emitting portion 3311, thus occupying a smaller area and having minimal impact on the resolution of the display panel 10.

[0092] It should be noted that the luminous color of the anti-peeping light-emitting portion 332 can be the same as the luminous color of the first light-emitting portion 3311, but is not limited thereto. The luminous color of the anti-peeping light-emitting portion 332 can also be the same as the luminous color of the second light-emitting portion 3312, depending on the specific situation. In addition, in some embodiments, the luminous color of the anti-peeping light-emitting portion 332 can also be the same as the luminous color of the third light-emitting portion 3313.

[0093] Because the privacy-prevention light-emitting portion 332 does not emit light in normal mode, when the ratio of the area occupied by the privacy-prevention light-emitting portion 332 to the area occupied by the first light-emitting portion 3311 is large, the brightness difference between the first light-emitting portion 3311 and the privacy-prevention light-emitting portion 332 is significant, significantly affecting the display quality of the display panel 10. The color of the light emitted by the privacy-prevention light-emitting portion 332 is the same as the color of the second-brightest display light-emitting portion 331 (i.e., the second light-emitting portion 3312), which can reduce the brightness difference between the privacy-prevention light-emitting portion 332 and the second light-emitting portion 3312 and reduce the impact on the display quality of the display panel 10.

[0094] In some embodiments, at least two privacy protection units 3321 in the privacy protection light emitting portion 332 are made of different materials, and the two privacy protection units 3321 emit correspondingly different luminous colors. A pixel definition portion 321 is disposed between the two privacy protection units 3321. A conductor portion 610 and an eave portion 620 are disposed on the side of the pixel definition portion 321 between the two privacy protection units 3321 away from the base substrate 100, respectively, to separate the two privacy protection units 3321.

[0095] The two privacy protection units 3321 are separated by the conductor portion 610 and the eave portion 620, thereby preventing light crosstalk between the two privacy protection units 3321. At least two privacy protection units 3321 in the privacy protection light emitting unit 332 emit different luminous colors. The light from the privacy protection units 3321 of different luminous colors is mixed, further enhancing the privacy protection effect of the display panel 10.

[0096] In some embodiments, the two privacy protection units 3321 in the privacy protection light emitting unit 332 are respectively connected to different display light emitting units 331, and the connected privacy protection units 3321 and the display light emitting unit 331 emit the same light color. For example, the first privacy protection unit 3321 in the privacy protection light emitting unit 332 is made of the same material as the first light emitting unit 3311, and the second privacy protection unit 3321 in the privacy protection light emitting unit 332 is made of the same material as the second light emitting unit 3312, and the privacy protection light emitting unit 332 emits yellow light.

[0097] The anti-peeping light emitting unit 332 emits yellow or white light. The anti-peeping light emitting unit 332 is brighter, creating a more visual contrast between the anti-peeping light and the display light, thereby improving the privacy protection effect. Furthermore, the first anti-peeping unit 3321 is connected to the first light emitting unit 3311, and the second anti-peeping unit 3321 is connected to the second light emitting unit 3312. The conductor portion 610 and the eave portion 620 between the anti-peeping unit 3321 and the connected display light emitting unit 331 can be omitted, thereby improving the pixel aperture ratio to a certain extent.

[0098] It should be noted that, since the anti-peeping light-emitting portion 332 is arranged at the junction of the three display light-emitting portions 331, the light of the anti-peeping light-emitting portion 332 can be a mixture of red light and green light, a mixture of red light and blue light, or a mixture of blue light and green light, depending on the specific situation.

[0099] In some embodiments, at least one privacy protection unit 3321 is connected to two different display light-emitting units 331. The privacy protection unit 3321 includes the light-emitting materials of the two different display light-emitting units 331. The privacy protection unit 3321 may include the materials of any two of the first light-emitting unit 3311, the second light-emitting unit 3312, and the third light-emitting unit 3313. The privacy protection unit 3321 is a stack of two organic light-emitting materials. For example, the privacy protection light-emitting unit 332 includes the materials of the first light-emitting unit 3311 and the materials of the second light-emitting unit 3312, and the light color of the privacy protection light-emitting unit 332 is yellow; the privacy protection light-emitting unit 332 includes the materials of the first light-emitting unit 3311, the second light-emitting unit 3312, and the third light-emitting unit 3313, and the light color of the privacy protection light-emitting unit 332 is white.

[0100] The anti-peeping light emitting unit 332 emits yellow or white light. The anti-peeping light emitting unit 332 is brighter, creating a greater visual contrast between the anti-peeping light and the display light, thereby improving the privacy protection effect. Furthermore, the anti-peeping unit 3321 is connected to the two display light emitting units 331. The conductor portion 610 and the eave portion 620 between the anti-peeping unit 3321 and the connected display light emitting units 331 can be omitted, thereby improving the pixel aperture ratio to a certain extent.

[0101] Example 2

[0102] See also Figure 6 As shown, the display device in this embodiment includes a display panel 10 and a main board 20 . The main board 20 is connected to the display panel 10 . The display panel 10 includes the display panel 10 disclosed in the first embodiment.

[0103] In this embodiment, the display device includes a display panel 10, which includes a base substrate 100, and a driving circuit layer 200, a pixel definition layer 320, a light-emitting layer 330, an encapsulation layer 400 and a light-shielding portion 510 formed in sequence on the base substrate 100. The pixel definition layer 320 includes a plurality of pixel opening areas 322. The light-emitting layer 330 is formed at least within the pixel opening area 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 at least two anti-peeping units 3321. The light-shielding portion 510 includes at least two light-shielding units 511 arranged at intervals. Adjacent edges of adjacent light-shielding units 511 in the light-shielding portion 510 are arranged in an alternating manner, and the light-shielding units 511 and the anti-peeping units 3321 are arranged in a one-to-one correspondence. The adjacent edges of adjacent shading units 511 in the shading portion 510 are arranged in a staggered manner, and light-emitting gaps are formed between the adjacent shading units 511, which can prevent the anti-peeping light in the central area of the anti-peeping luminous portion 332 from being completely blocked by the shading portion 510, thereby improving the light utilization rate and brightness of the anti-peeping luminous portion 332 and enhancing the anti-peeping effect of the display panel 10 and the display device.

[0104] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0105] In this application, unless otherwise specified or limited, terms such as "assembly" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0106] In the description of this specification, the reference terms "some embodiments", "exemplarily", etc. mean that the specific features, structures, materials or characteristics described in conjunction 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 can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0107] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent 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 a side of the driving circuit layer away from the base substrate, the pixel definition layer comprising a plurality of pixel opening areas and a pixel definition portion surrounding the pixel opening areas; a light-emitting layer formed in the pixel opening area, the light-emitting layer including a plurality of display light-emitting portions and a plurality of privacy-prevention light-emitting portions, the privacy-prevention light-emitting portion including at least two privacy-prevention units spaced apart; An encapsulation layer is formed on a side of the pixel definition layer and the light emitting layer away from the base substrate; A light-shielding portion is formed on a side of the encapsulation layer away from the base substrate, the light-shielding portion includes at least two spaced-apart light-shielding units, adjacent edges of adjacent light-shielding units in the light-shielding portion are staggered with concave and convex portions, and the orthographic projection of the anti-peeping unit on the light-shielding portion is located within the light-shielding unit.

2. The display panel according to claim 1, wherein: The orthographic projection of the privacy protection unit on the light shielding portion has the same shape as the light shielding unit and is centrally aligned.

3. The display panel according to claim 1, wherein: The light shielding portion includes two light shielding units, and the two light shielding units are spaced apart along the row direction or the column direction; or The light shielding portion includes four light shielding units arranged at intervals, and the four light shielding units are arranged in an array along the row direction and the column direction.

4. The display panel according to claim 1, wherein: In a pair of the shading units whose adjacent edges are staggered with convex and concave: at least part of the adjacent edges of the first shading unit and the second shading unit bulge outward to form a convex area, and at least part of the adjacent edges of the second shading unit and the first shading unit are concave inward to form a groove area, and the distance between the convex area and the groove area is equal to the distance between the two shading units.

5. The display panel according to claim 4, wherein: The protruding area is rectangular, semicircular or inferior arc-shaped.

6. The display panel according to claim 4, wherein: In a pair of the light-shielding units with adjacent sides alternately arranged in concave and convex shapes, a side of the first light-shielding unit close to the second light-shielding unit and a side of the second light-shielding unit close to the first light-shielding unit are parallel curves.

7. The display panel according to claim 4, wherein: At least part of the adjacent sides of the light shielding unit and the display light emitting portion are provided with the convex area or the concave area, and the display light emitting portion and the privacy protection unit are arranged in an alternating concave and convex manner.

8. The display panel according to claim 7, wherein: 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 spaced apart 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 portion is provided in at least some of the pixel units. The anti-peeping luminous portion is provided at the junction of at least some of the adjacent display luminous portions, and an extension line of the junction line of at least some of the adjacent display luminous portions passes through the anti-peeping luminous portion.

9. The display panel according to claim 1, wherein: The two privacy protection units in the privacy protection light emitting portion are respectively connected to different display light emitting portions, and the connected privacy protection units and the display light emitting portions emit the same light color; or At least one of the privacy protection units is connected to two different display light-emitting parts, and the privacy protection unit includes the light-emitting materials of the two different display light-emitting parts.

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

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