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 peep-proof light-emitting parts, the light-shielding parts and the peep-proof light-emitting parts are arranged in a one-to-one correspondence mode, each light-shielding part comprises two main light-shielding areas arranged in a spaced mode and at least one secondary light-shielding area, the secondary light-shielding areas are connected with the two main light-shielding areas, and orthographic projections of the peep-proof light-emitting parts on the substrate are located in orthographic projections of the light-shielding parts on the substrate. The light-emitting gap is formed between the two main shading areas, so that peep-proof light in the central area of the peep-proof light-emitting part can be prevented from being completely shaded 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 can be improved.

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 wherein 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 anti-peep light-emitting portions;

[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 shading portion is formed on the side of the encapsulation layer away from the base substrate, and the shading portion is arranged in a one-to-one correspondence with the anti-peeping luminous portion. The shading portion includes two main shading areas and at least one secondary shading area. The two main shading areas are arranged at intervals along the first direction, and the secondary shading area connects the two main shading areas. The size of the secondary shading area in the second direction is smaller than the size of the main shading area in the second direction. The second direction is perpendicular to the first direction, and the orthographic projection of the anti-peeping luminous portion on the base substrate is located within the orthographic projection of the shading portion on the base substrate.

[0011] Optionally, the display panel includes a plurality of pixel units arrayed along row and column directions, the pixel units include a plurality of display light-emitting portions with different light-emitting colors, one of the first direction and the second direction is a row direction and the other is a column direction.

[0012] Optionally, the first direction is a row direction, and the second direction is a column direction.

[0013] Optionally, a light exit gap is formed between the two main light-shielding areas, the two main light-shielding areas are symmetrical with respect to a center line of the light exit gap in the second direction, and the secondary light-shielding area is located in the light exit gap.

[0014] Optionally, when the size of the light shielding portion in the second direction is smaller than the size of the light shielding portion in the first direction, one secondary light shielding area is provided between the two primary light shielding areas;

[0015] When the size of the shading portion in the second direction is greater than or equal to the size of the shading portion in the first direction, at least two secondary shading areas are arranged between the two main shading areas, and the at least two secondary shading areas are arranged at intervals along the second direction.

[0016] Optionally, in the second direction, the at least one secondary shading area is centered relative to the primary shading area.

[0017] Optionally, the two opposite sides of the secondary shading area in the second direction include a straight line segment parallel to the first direction, an oblique line segment inclined to the first direction, a circular arc curve, an elliptical arc curve and a broken line segment, and the broken line includes a first line segment, a second line segment and a third line segment connected vertically in sequence, and in the first direction and the second direction, the first line segment and the third line segment are both located on both sides of the second line segment.

[0018] Optionally, when two opposite side edges of the secondary light-shielding area in the second direction are straight line segments, the two opposite side edges of the secondary light-shielding area in the second direction are parallel;

[0019] When the two opposite sides of the secondary light-shielding area in the second direction are circular arc curves or elliptical arc curves, the two opposite sides of the secondary light-shielding area in the second direction are symmetrical with respect to the center line of the secondary light-shielding area in the first direction;

[0020] When two opposite sides of the secondary light-shielding area in the second direction are broken line segments, the two opposite sides of the secondary light-shielding area in the second direction are symmetrical about the center point of the secondary light-shielding area in the first direction and the second direction.

[0021] Optionally, the shape of the main shading area includes a rectangle, a rounded rectangle or an ellipse; and / or

[0022] The orthographic projection of the anti-peeping light-emitting portion on the base substrate has the same shape as the orthographic projection of the light-shielding portion on the base substrate and is centrally aligned.

[0023] The present application also provides a display device, comprising:

[0024] the display panel;

[0025] A mainboard is connected to the display panel.

[0026] The display panel and display device disclosed in this application have the following beneficial effects:

[0027] In the present application, the display panel includes a 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 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 anti-peeping light-emitting portions. The plurality of light-shielding portions are spaced apart and formed on the side of the encapsulation layer away from the substrate. The light-shielding portions are arranged in a one-to-one correspondence with the anti-peeping light-emitting portions. The light-shielding portion includes two spaced apart main light-shielding areas and at least one secondary light-shielding area. The secondary light-shielding area connects the two main light-shielding areas. The orthographic projection of the anti-peeping light-emitting portion on the substrate is located within the orthographic projection of the light-shielding portion on the substrate. A light-emitting gap is formed between the two main light-shielding areas to 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 improving the anti-peeping effect of the display panel.

[0028] 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.

[0029] 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

[0030] 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.

[0031] Figure 1 1 is a schematic top view of the anti-peeping luminous portion of the display panel in the first embodiment of the present application.

[0032] Figure 2 yes Figure 1 Schematic diagram of the structure of the AA section at the middle position.

[0033] Figure 3 Schematic diagram comparing the brightness of the integrated anti-peeping luminous portion and the anti-peeping luminous portion in this application.

[0034] Figure 4 This is a schematic diagram of a light shielding portion in the first embodiment of the present application having multiple sub-light shielding areas.

[0035] Figure 5 It is a partial schematic diagram of a display panel with a diamond-shaped secondary light-shielding area in the first embodiment of the present application.

[0036] Figure 6 This is a partial schematic diagram of a display panel in which the secondary light-shielding area is a partial ellipse in the first embodiment of the present application.

[0037] Figure 7 This is a partial schematic diagram of a display panel with a Z-shaped secondary shading area in the first embodiment of the present application.

[0038] Figure 8 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.

[0039] Figure 9 It is a structural diagram of the display device in Example 2 of the present application.

[0040] Description of reference numerals:

[0041] 10. Display panel; 20. Mainboard;

[0042] 100, base substrate; 200, driving circuit layer;

[0043] 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-prevention light-emitting portion; 3321, primary light-emitting region; 3322, secondary light-emitting region; 340, cathode layer;

[0044] 400, encapsulation layer; 410, first inorganic encapsulation layer; 420, organic encapsulation layer; 430, second inorganic encapsulation layer;

[0045] 510, light shielding portion; 511, main light shielding area; 512, secondary light shielding area;

[0046] 610, conductor part; 620, eaves part. DETAILED DESCRIPTION

[0047] 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.

[0048] 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.

[0049] 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.

[0050] Example 1

[0051] 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.

[0052] 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.

[0053] The light-emitting layer 330 is formed at least within the pixel opening area 322. The light-emitting layer 330 can also extend outside the pixel opening area 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 anti-peeping light-emitting portions 332. The display light-emitting portions 331 and the anti-peeping light-emitting portions 332 are both arranged within the pixel opening area 322. Each display light-emitting portion 331 is connected to an anode 310, and each anti-peeping light-emitting portion 332 is connected to an anode 310. The anodes 310 corresponding to the anti-peeping light-emitting portions 332 can be connected. Three or four display light-emitting portions 331 of different luminous colors constitute a pixel unit. Multiple pixel units are arranged in an array along the row and column directions to display an image. 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.

[0054] 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. A plurality of 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 are arranged 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.

[0055] The light shielding portion 510 includes two main light shielding areas 511 and at least one secondary light shielding area 512. The two main light shielding areas 511 are spaced apart along a first direction, and the secondary light shielding area 512 connects the two main light shielding areas 511. The secondary light shielding area 512 is smaller in a second direction than the main light shielding area 511 in the second direction, and the second direction is perpendicular to the first direction.

[0056] The orthographic projection of the privacy-preventing luminous portion 332 on the base substrate 100 is located within the orthographic projection of the light-shielding portion 510 on the base substrate 100. The orthographic projection of the display luminous portion 331 on the base substrate 100 is separated from the orthographic projection of the light-shielding portion 510 on the base substrate 100. The privacy-preventing luminous portion 332 can be divided into two main luminous regions 3321 and one secondary luminous region 3322. The main luminous region 3321 is located below the main light-shielding region 511, and the secondary luminous region 3322 is located below the secondary light-shielding region 512.

[0057] 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.

[0058] In some technical solutions, the two main shading areas 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 main shading areas 511. Correspondingly, the two main light-emitting areas 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 light-emitting gap provided in the shading portion 510 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.

[0059] However, the two main light-shielding areas 511 are spaced apart in the row direction, and the brightness of the privacy light emitted by the privacy light emitting portion 332 in the row direction is greater than the brightness of the privacy light emitted by the privacy light emitting portion 332 in the column direction. Similarly, the two main light-shielding areas 511 are spaced apart in the column direction, and the brightness of the privacy light emitted by the privacy light emitting portion 332 in the column direction is greater than the brightness of the privacy light emitted by the privacy light emitting portion 332 in the row direction. Therefore, there is a difference in brightness between the privacy light emitting portion 332 in the row and column directions, which affects the privacy protection effect of the display panel 10.

[0060] In the present application, the shading portion 510 includes two main shading areas 511 and at least one secondary shading area 512. The two main shading areas 511 are spaced apart along the first direction, and the secondary shading area 512 connects the two main shading areas 511. A light-emitting gap is formed between the two main shading areas 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. Figure 3 As shown; since the secondary luminous area 3322 of the anti-peeping luminous portion 332 is located below the secondary light-shielding area 512, the secondary luminous area 3322 can improve the light utilization rate and brightness of the anti-peeping luminous portion 332 in the second direction, and reduce the brightness difference of the anti-peeping luminous portion 332 in different directions.

[0061] 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.

[0062] 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 anti-peeping light-emitting portions 332. The plurality of light-shielding portions 510 are arranged at intervals and formed on the side of the encapsulation layer 400 away from the base substrate 100. The light-shielding portions 510 are arranged in a one-to-one correspondence with the anti-peeping light-emitting portions 332. The light-shielding portion 510 includes two main light-shielding areas 511 and at least one secondary light-shielding area 512. The two main light-shielding areas 511 are arranged at intervals along a first direction. The secondary light-shielding area 512 connects the two main light-shielding areas 511. The orthographic projection of the anti-peeping light-emitting portion 332 on the base substrate 100 is located within the orthographic projection of the light-shielding portion 510 on the base substrate 100. A light-emitting gap is formed between the two main light-shielding areas 511, which can prevent the anti-peeping light in the central area of the anti-peeping light-emitting portion 332 from being completely blocked by the light-shielding portion 510, thereby improving the light utilization rate and brightness of the anti-peeping light-emitting portion 332 and improving the anti-peeping effect of the display panel 10.

[0063] In addition, the secondary luminous area 3322 below the secondary light-shielding area 512 can improve the light utilization rate and brightness of the anti-peeping luminous portion 332 in the second direction, reduce the brightness difference of the anti-peeping luminous portion 332 in different directions, and further improve the anti-peeping effect of the display panel 10.

[0064] In some embodiments, the orthographic projection of the privacy-prevention luminous portion 332 on the base substrate 100 is the same shape as the orthographic projection of the light-shielding portion 510 on the base substrate 100. The orthographic projection of the privacy-prevention luminous portion 332 on the base substrate 100 is centered with the orthographic projection of the light-shielding portion 510 on the base substrate 100, i.e., the orthographic projection of the privacy-prevention luminous portion 332 on the base substrate 100 is within the orthographic projection of the light-shielding portion 510 on the base substrate 100, and the spacing between adjacent edges on the same side of the privacy-prevention luminous portion 332 and the light-shielding portion 510 is equal.

[0065] The anti-peeping light-emitting portion 332 and the light-shielding portion 510 have the same shape and are centrally aligned, and the anti-peeping angles of the display panel 10 in all directions are the same.

[0066] In some embodiments, the display panel 10 includes a plurality of pixel units arrayed along row and column directions, the pixel units include a plurality of display light-emitting portions 331 of different luminous colors, one of the first direction and the second direction is the row direction and the other is the column direction.

[0067] The two main light-shielding areas 511 are spaced apart along the row direction or the column direction, and the two main light-emitting areas 3321 are also spaced apart along the row direction or the column direction. The brightness of the privacy light emitted by the privacy-preventing light emitting unit 332 in the row direction and the column direction are different. For example, the two main light-emitting areas 3321 are spaced apart along the row direction, the brightness of the privacy light emitted by the privacy-preventing light emitting unit 332 in the row direction is greater than the brightness of the privacy light emitted by the privacy-preventing light emitting unit 332 in the column direction, and the main privacy-preventing direction of the display panel 10 is the row direction, that is, the privacy-preventing effect in the row direction is better. The two main light-emitting areas 3321 are spaced apart along the column direction, the brightness of the privacy light emitted by the privacy-preventing light emitting unit 332 in the column direction is greater than the brightness of the privacy light emitted by the privacy-preventing light emitting unit 332 in the row direction, and the main privacy-preventing direction of the display panel 10 is the column direction, that is, the privacy-preventing effect in the column direction is better.

[0068] In some embodiments, the first direction is a row direction, and the second direction is a column direction.

[0069] The two main light-emitting areas 3321 are arranged at intervals along the row direction. The brightness of the anti-peeping light of the anti-peeping light-emitting portion 332 in the row direction is greater than the brightness of the anti-peeping light of the anti-peeping light-emitting portion 332 in the column direction. Since the secondary light-emitting area 3322 can improve the light utilization rate and brightness of the anti-peeping light-emitting portion 332 in the column direction, and reduce the brightness difference between the anti-peeping light-emitting portion 332 in the row direction and the column direction, the brightness of the anti-peeping light-emitting portion 332 in the column direction is close to that of the integral anti-peeping light-emitting portion 332, and the display panel 10 has good anti-peeping effect in both the row direction and the column direction.

[0070] In some embodiments, a light exit gap is formed between the two main light-shielding regions 511. The two main light-shielding regions 511 are symmetrical about the center line of the light exit gap in the second direction. In other words, the two main light-shielding regions 511 are symmetrical in the row direction (i.e., bilaterally symmetrical in the figure). The secondary light-shielding region 512 is located in the light exit gap.

[0071] The secondary light shielding area 512 is located in the light emitting gap and does not occupy the design space of the display light emitting portion 331 , thereby avoiding waste of the design space of the display panel 10 and improving the aperture ratio and pixel density of the display panel 10 .

[0072] In some embodiments, when the size of the light shielding portion 510 in the second direction is smaller than the size of the light shielding portion 510 in the first direction, a secondary light shielding area 512 is provided between the two main light shielding areas 511. For example, when the size of the light shielding portion 510 in the second direction is half the size of the light shielding portion 510 in the first direction, a secondary light shielding area 512 is provided between the two main light shielding areas 511. When the size of the light shielding portion 510 in the second direction is greater than or equal to the size of the light shielding portion 510 in the first direction, at least two secondary light shielding areas 512 are provided between the two main light shielding areas 511. Figure 4 As shown, at least two secondary light-shielding regions 512 are spaced apart along the second direction.

[0073] Multiple secondary shading areas 512 are set between the two main shading areas 511, and the multiple secondary shading areas 512 are arranged at intervals along the second direction. Multiple secondary luminous areas 3322 are set accordingly. The multiple secondary luminous areas 3322 can further improve the light utilization rate and brightness of the anti-peeping luminous part 332 in the second direction, and reduce the brightness difference of the anti-peeping luminous part 332 in different directions.

[0074] In some embodiments, in the second direction, at least one secondary light-shielding area 512 is centered relative to the main light-shielding area 511. That is, when the number of secondary light-shielding areas 512 is odd, the center line of the centrally arranged secondary light-shielding area 512 in the first direction is collinear with the center line of the main light-shielding area 511 in the first direction; when the number of secondary light-shielding areas 512 is even, the center lines of the two centrally arranged secondary light-shielding areas 512 in the first direction are collinear with the center line of the main light-shielding area 511 in the first direction.

[0075] In the second direction, at least one secondary light-shielding area 512 is aligned centrally with respect to the primary light-shielding area 511 , thereby preventing different brightness of the anti-peeping light-emitting portion 332 on both sides in the second direction, thereby preventing the anti-peeping effect of the display panel 10 from being affected.

[0076] In some embodiments, the two opposite sides of the secondary shading area 512 in the second direction include a straight line segment parallel to the first direction, an oblique line segment inclined to the first direction, an arc curve, an elliptical arc curve and a broken line segment, and the broken line includes a first line segment, a second line segment and a third line segment connected vertically in sequence. In the first direction and the second direction, the first line segment and the third line segment are both located on both sides of the second line segment.

[0077] The two opposite sides of the secondary shading area 512 in the second direction can be straight segments, curved segments, broken line segments, etc. The shape of the side of the secondary shading area 512 in the second direction can be selected according to implementation needs to maximize the brightness of the anti-peeping light-emitting portion 332 in the second direction.

[0078] In some embodiments, when the two opposite sides of the secondary light shielding area 512 in the second direction are straight line segments, the two opposite sides of the secondary light shielding area 512 in the second direction are parallel. When the two opposite sides of the secondary light shielding area 512 in the second direction are parallel to the first direction, the shape of the secondary light shielding area 512 is a rectangle, such as Figure 1 When the two sides of the secondary light shielding area 512 opposite to each other in the second direction are tilted relative to the first direction, the shape of the secondary light shielding area 512 is a diamond, as shown in FIG. Figure 5 shown.

[0079] When two opposite side edges of the secondary light-shielding area 512 in the second direction are straight line segments, the structure of the secondary light-shielding area 512 is simple, which can reduce the manufacturing cost of the display panel 10 .

[0080] In some embodiments, when the two opposite sides of the secondary light shielding area 512 in the second direction are circular arc curves or elliptical arc curves, the two opposite sides of the secondary light shielding area 512 in the second direction are symmetrical with respect to the center line of the secondary light shielding area 512 in the first direction. In other words, the secondary light shielding area 512 is partially circular or partially elliptical, such as Figure 6 shown.

[0081] The secondary light-shielding area 512 is rectangular and the secondary light-emitting area 3322 is rectangular. When the display panel 10 displays images in anti-peeping mode, the user can also see part of the secondary light-emitting area 3322 within the anti-peeping viewing angle. That is, the light from the secondary light-emitting area 3322 that does not appear in 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 light-shielding angle of the light-shielding portion 510. The larger the light-shielding range of the light-shielding portion 510, the larger the anti-peeping viewing angle. The applicant has discovered that the user can also see part of the secondary light-emitting area 3322 within the anti-peeping viewing angle due to light diffraction, that is, part of the anti-peeping light bypasses the light-shielding portion 510 that acts as an obstacle and continues to propagate.

[0082] The two opposite sides of the secondary shading area 512 in the second direction are circular arc curves or elliptical arc curves, which can reduce the intensity of the 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.

[0083] It should be understood that the specific shape of the secondary light-shielding area 512 may be selected by comprehensively considering the production cost and the impact of diffracted light on the display effect.

[0084] In some embodiments, when the two opposite sides of the secondary light shielding area 512 in the second direction are broken line segments, the two opposite sides of the secondary light shielding area 512 in the second direction are symmetrical about the center point of the secondary light shielding area 512 in the first direction and the second direction. In other words, the shape of the secondary light shielding area 512 is Z-shaped, such as Figure 7 shown.

[0085] The secondary light-shielding area 512 has a rectangular, diamond, Z-shaped shape, etc. The shape of the secondary light-shielding area 512 can be selected according to implementation needs to maximize the brightness of the anti-peeping light-emitting portion 332 in the second direction.

[0086] In some embodiments, the main light shielding area 511 has a shape including a rectangle, a rounded rectangle, or an ellipse.

[0087] The main light-shielding area 511 is rectangular in shape, and the secondary light-shielding area 512 has a simple structure, which can reduce the production cost of the display panel 10. In addition, the main light-shielding area 511 is rectangular in shape, the outer contour of the light-shielding portion 510 is rectangular, and the display light-emitting portion 331 is rectangular in shape. This solves the arrangement problem of the anti-peep light-emitting portion 332 and the pixel unit, avoids wasted design space in the display panel 10, and improves the aperture ratio and pixel density of the display panel 10.

[0088] The main light-shielding area 511 is in the shape of a rounded rectangle or an ellipse, 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.

[0089] 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.

[0090] The first light-emitting portion 3311 and the second light-emitting portion 3312 are spaced apart along the first direction, and the first light-emitting portion 3311 and the second light-emitting portion 3312 are located on one side of the second direction of the third light-emitting portion 3313. 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. 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 anti-peeping light-emitting portion 332 corresponds one-to-one to the pixel unit and is arranged at the junction of at least part of the adjacent display light-emitting portions 331, such as Figure 8As shown, the edge of the display light emitting portion 331 near the anti-peeping light emitting portion 332 is recessed inward to make room for the anti-peeping light emitting portion 332, and at least part of the extension line of the intersection line of adjacent display light emitting portions 331 passes through the anti-peeping light emitting portion 332. In other words, the anti-peeping light emitting portion 332 is set in the pixel unit.

[0091] 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.

[0092] 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 .

[0093] Furthermore, when the main light-shielding area 511 is not rectangular, the outer contour of the privacy-prevention light-emitting portion 332 differs from the outer contour of the display light-emitting portion 331, and the size of the privacy-prevention light-emitting portion 332 also differs from the size of the display light-emitting portion 331. If the privacy-prevention light-emitting portion 332 is disposed outside the pixel unit, it will 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 privacy-prevention light-emitting portion 332 is disposed at the junction of adjacent display light-emitting portions 331, that is, the privacy-prevention light-emitting portion 332 is disposed in each pixel unit. This solves the arrangement problem of the privacy-prevention 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.

[0094] 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 .

[0095] 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 .

[0096] 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 .

[0097] 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.

[0098] 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.

[0099] 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. The light-emitting layer 330 and the cathode layer 340 are both formed by vapor deposition. The eave portion 620 is used to separate the light-emitting layer 330, that is, the eave portion 620 is used to separate the adjacent display light-emitting portion 331 and the anti-peeping light-emitting portion 332. The conductor portion 610 is used to connect the cathode layer 340.

[0100] 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.

[0101] 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.

[0102] In some embodiments, the anti-peeping light emitting portion 332 is disposed in the pixel unit, and the anti-peeping light emitting portion 332 is made of the same material as a display light emitting portion 331 in the pixel unit, and the anti-peeping light emitting portion 332 is connected to the display light emitting portion 331 made of the same material.

[0103] The anti-peeping light-emitting portion 332 is connected to the display light-emitting portion 331 made of the same material. The conductor portion 610 and the eaves portion 620 between the connected anti-peeping light-emitting portion 332 and the display light-emitting portion 331 can be omitted, thereby improving the pixel aperture ratio to a certain extent.

[0104] 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 .

[0105] 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.

[0106] 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.

[0107] 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.

[0108] In some embodiments, the privacy-prevention light-emitting portion 332 is connected to two different display light-emitting portions 331 and includes the light-emitting materials of the two different display light-emitting portions 331. The privacy-prevention light-emitting portion 332 may include the materials of any two of the first light-emitting portion 3311, the second light-emitting portion 3312, and the third light-emitting portion 3313, forming a stack of two organic light-emitting materials. For example, if the privacy-prevention light-emitting portion 332 includes the materials of the first light-emitting portion 3311 and the materials of the second light-emitting portion 3312, the light-emitting color of the privacy-prevention light-emitting portion 332 is yellow; if the privacy-prevention light-emitting portion 332 includes the materials of the first light-emitting portion 3311, the second light-emitting portion 3312, and the third light-emitting portion 3313, the light-emitting color of the privacy-prevention light-emitting portion 332 is white.

[0109] The anti-peeping light emitting portion 332 emits yellow or white light. Its brightness is higher, creating a visual contrast between the anti-peeping light and the display light, thereby improving the privacy protection effect. Furthermore, the anti-peeping light emitting portion 332 is connected to the two display light emitting portions 331. The conductor portion 610 and the eave portion 620 between the anti-peeping light emitting portion 332 and the connected display light emitting portion 331 can be omitted, thereby improving the pixel aperture ratio to a certain extent.

[0110] Example 2

[0111] See also Figure 9 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.

[0112] 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 sequentially formed 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 anti-peeping light-emitting portions 332. The plurality of light-shielding portions 510 are arranged at intervals and formed on a side of the encapsulation layer 400 away from the base substrate 100. The light-shielding portions 510 are arranged in a one-to-one correspondence with the anti-peeping light-emitting portions 332. The light-shielding portion 510 includes two main light-shielding areas 511 and at least one secondary light-shielding area 512. The two main light-shielding areas 511 are arranged at intervals along a first direction. The secondary light-shielding area 512 connects the two main light-shielding areas 511. The orthographic projection of the anti-peeping light-emitting portion 332 on the base substrate 100 is located within the orthographic projection of the light-shielding portion 510 on the base substrate 100. A light-emitting gap is formed between the two main shading areas 511, which 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 improving the anti-peeping effect of the display panel 10 and the display device.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] 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, characterized in that: The display panel comprises a base substrate and a driving circuit layer, wherein the driving circuit layer is arranged on one side of the base substrate, and is characterized in that the display panel further comprises: 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 anti-peep light-emitting portions; 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 portion is formed on the side of the encapsulation layer away from the base substrate, and the shading portion is arranged in a one-to-one correspondence with the anti-peeping luminous portion. The shading portion includes two main shading areas and at least one secondary shading area. The two main shading areas are arranged at intervals along the first direction, and the secondary shading area connects the two main shading areas. The size of the secondary shading area in the second direction is smaller than the size of the main shading area in the second direction. The second direction is perpendicular to the first direction, and the orthographic projection of the anti-peeping luminous portion on the base substrate is located within the orthographic projection of the shading portion on the base substrate.

2. The display panel according to claim 1, wherein: The display panel includes a plurality of pixel units arrayed along row and column directions, the pixel units include a plurality of display light-emitting portions of different luminous colors, one of the first direction and the second direction is a row direction and the other is a column direction.

3. The display panel according to claim 2, wherein: The first direction is a row direction, and the second direction is a column direction.

4. The display panel according to claim 2, wherein: A light exit gap is formed between the two main light-shielding areas. The two main light-shielding areas are symmetrical with respect to a center line of the light exit gap in the second direction. The secondary light-shielding area is located in the light exit gap.

5. The display panel according to claim 4, wherein: When the size of the light shielding portion in the second direction is smaller than the size of the light shielding portion in the first direction, one secondary light shielding area is provided between the two primary light shielding areas; When the size of the shading portion in the second direction is greater than or equal to the size of the shading portion in the first direction, at least two secondary shading areas are arranged between the two main shading areas, and the at least two secondary shading areas are arranged at intervals along the second direction.

6. The display panel according to claim 5, wherein: In the second direction, the at least one secondary light-shielding area is centrally aligned with respect to the primary light-shielding area.

7. The display panel according to claim 1, wherein: The two opposite sides of the secondary shading area in the second direction include a straight line segment parallel to the first direction, an oblique line segment inclined to the first direction, a circular arc curve, an elliptical arc curve and a broken line segment, and the broken line includes a first line segment, a second line segment and a third line segment connected vertically in sequence. In the first direction and the second direction, the first line segment and the third line segment are both located on both sides of the second line segment.

8. The display panel according to claim 7, wherein: When the two opposite sides of the secondary light-shielding area in the second direction are straight line segments, the two opposite sides of the secondary light-shielding area in the second direction are parallel; When the two opposite sides of the secondary light-shielding area in the second direction are circular arc curves or elliptical arc curves, the two opposite sides of the secondary light-shielding area in the second direction are symmetrical with respect to the center line of the secondary light-shielding area in the first direction; When two opposite sides of the secondary light-shielding area in the second direction are broken line segments, the two opposite sides of the secondary light-shielding area in the second direction are symmetrical about the center point of the secondary light-shielding area in the first direction and the second direction.

9. The display panel according to claim 1, wherein: The shape of the main light shielding area includes a rectangle, a rounded rectangle or an ellipse; and / or The orthographic projection of the anti-peeping light-emitting portion on the base substrate has the same shape as the orthographic projection of the light-shielding portion on the base substrate and is centrally aligned.

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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