Display panel and display device

Abstract

The present application belongs to the field of display, and specifically relates to a display panel and a display device. The display panel includes a base substrate and a pixel definition layer, a light-emitting layer, a light-shielding layer, and a transparent functional layer sequentially formed on one side of the base substrate. The light-emitting layer includes a plurality of pixel units, at least some of the pixel units include a plurality of display light-emitting parts and at least one anti-peeping light-emitting part, at least some of the anti-peeping light-emitting parts are located between adjacent display light-emitting parts, the light-shielding layer includes a plurality of light-shielding units and a plurality of light-shielding rings, the light-shielding units are arranged in a one-to-one correspondence within the light-shielding rings and form a light-emitting gap with the light-shielding rings, the orthographic projection of the anti-peeping light-emitting part on the light-shielding layer is located within the light-shielding unit, and the orthographic projection of the light-shielding ring on the light-emitting layer is located between the corresponding anti-peeping light-emitting part and its adjacent display light-emitting part. In the present application, the light-shielding ring can at least block a portion of the light that is totally reflected at the light-emitting surface of the transparent functional layer, so as to reduce or eliminate the interference of the anti-peeping light-emitting part with the forward light of the display light-emitting part, thereby improving the problem of uneven display.

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] OLED (Organic Light-Emitting Diode) display panels do not require a backlight source and have the advantages of being flexible, thin, high brightness, low power consumption, fast response, and a wide color gamut. They are widely used in electronic products such as televisions, mobile phones, and laptops.

[0003] The active emission of organic light-emitting diodes (OLEDs) enables OLED display panels to have a wider viewing angle, typically up to 170 degrees. While this wider viewing angle provides a better visual experience, users may also wish to adjust the viewing angle to more effectively protect trade secrets and personal privacy.

[0004] Existing anti-peeping display panels use an anti-peeping film to prevent peeping. When the anti-peeping function is not needed, the anti-peeping film can only be torn off, which makes it inconvenient to turn the anti-peeping function on and off. In order to solve the problem of the inconvenience of turning the anti-peeping function on and off, some display panels are provided with anti-peeping pixels. When the anti-peeping pixels are turned on, the oblique light of the anti-peeping pixels interferes with the oblique light of the display pixels, thereby preventing peeping when squinting. The anti-peeping pixels themselves usually do not participate in the display, but some of the oblique light of the anti-peeping pixels is reflected by the upper display structure (including the flat layer, the transparent cover, etc.) and reaches the area where the display pixels are located. The reflection from the area where the display pixels are located will interfere with the forward light of the display pixels, causing uneven color and brightness display of the display panel (i.e., Mura). Summary of the Invention

[0005] The purpose of the present application is to provide a display panel and a display device to reduce or eliminate the interference of anti-peeping pixels with the forward light of display pixels, thereby improving the problem of uneven display.

[0006] To achieve the above-mentioned object, the present application provides a display panel, comprising a base substrate and a pixel definition layer formed on one side of the base substrate, the display panel further comprising:

[0007] a light-emitting layer formed in the pixel definition layer defined area on one side of the base substrate, the light-emitting layer comprising a plurality of pixel units, at least some of the pixel units comprising a plurality of display light-emitting portions and at least one privacy-preventing light-emitting portion, at least some of the privacy-preventing light-emitting portions being located between adjacent display light-emitting portions;

[0008] A transparent functional layer is formed on a side of the light-emitting layer away from the base substrate;

[0009] A shading layer is formed between the light-emitting layer and the transparent functional layer, the light-shielding layer and the light-emitting layer form a gap, the light-shielding layer includes a plurality of shading units and a plurality of shading rings, the shading units are arranged in a one-to-one correspondence within the shading rings and form a light-emitting gap with the shading rings, the orthographic projection of the anti-peeping light-emitting portion on the light-shielding layer is located within the shading unit, and the orthographic projection of the shading ring on the light-emitting layer is located between the corresponding anti-peeping light-emitting portion and the adjacent display light-emitting portion.

[0010] Optionally, the width of the light exit gap is configured such that the incident angle of the light of the anti-peeping light emitting portion passing through the light exit gap is smaller than the critical angle of total reflection of the light in the transparent functional layer.

[0011] Optionally, the display panel also includes a color resist layer, the color resist layer includes red color resist, green color resist and blue color resist, the orthographic projection of part of the display light-emitting part on the color resist layer is located within the red color resist, the orthographic projection of part of the display light-emitting part on the color resist layer is located within the green color resist, and the orthographic projection of the remaining part of the display light-emitting part on the color resist layer is located within the blue color resist, and the shading layer also includes a black matrix, which is arranged in the area between the red color resist, green color resist, blue color resist and the shading ring.

[0012] Optionally, the light-shielding ring and the black matrix are integrally connected.

[0013] Optionally, the display panel further includes an encapsulation layer, and the encapsulation layer is located between the light-shielding layer and the light-emitting layer.

[0014] Optionally, the transparent functional layer includes a flat layer, which is formed on a side of the light-shielding layer away from the base substrate and fills a gap between the light-shielding unit and the light-shielding ring, and the refractive index of the encapsulation layer is less than or equal to the refractive index of the flat layer.

[0015] Optionally, the display panel further includes a first anode layer and a cathode layer, wherein the first anode layer is formed on one side of the base substrate, the pixel definition layer is formed on a side of the first anode layer away from the base substrate, and the cathode layer is formed on a side of the light-emitting layer away from the base substrate;

[0016] The first anode layer includes a plurality of first anodes and a plurality of second anodes, with spaces formed between adjacent first anodes and spaces formed between adjacent first anodes and second anodes;

[0017] The pixel definition layer includes a plurality of vias arranged at intervals, and the vias include a first via and a second via, the first via is connected to the first anode, the second via is connected to the second anode, the display light-emitting portion is at least partially located in the first via, the display light-emitting portion is connected to the first anode and the cathode layer, and the anti-peeping light-emitting portion is at least partially located in the second via, the anti-peeping light-emitting portion is connected to the second anode and the cathode layer.

[0018] Optionally, the display panel further includes a spacer layer, which is formed on a side of the pixel definition layer away from the base substrate. The spacer layer is a light-absorbing material structure layer, and the spacer layer at least includes a barrier arranged around the second via hole.

[0019] Optionally, the display panel further includes a first anode layer, a second anode layer, and a cathode layer, wherein the first anode layer is formed on a side of the base substrate, the pixel definition layer is formed on a side of the first anode layer away from the base substrate, the second anode layer is formed on a side of the pixel definition layer away from the base substrate, and the cathode layer is formed on a side of the light-emitting layer away from the base substrate;

[0020] The first anode layer includes a plurality of first anodes spaced apart from each other, the pixel definition layer includes a plurality of first via holes spaced apart from each other, the first via holes are connected to the first anodes, the display light-emitting portion is at least partially located in the first via holes, and the display light-emitting portion is connected to the first anodes and the cathode layer;

[0021] The second anode layer includes a plurality of connected second anodes, the second anodes are located between adjacent first via holes, and the anti-peeping light-emitting portion connects the second anodes and the cathode layer.

[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 pixel definition layer, a light-emitting layer, a shading layer and a transparent functional layer formed in sequence on the base substrate. The light-emitting layer includes a plurality of pixel units, each pixel unit includes a plurality of display light-emitting parts and at least one anti-peeping light-emitting part, at least part of the anti-peeping light-emitting part is located between adjacent display light-emitting parts, the shading layer includes a plurality of shading units and a plurality of shading rings, the shading units are arranged one-to-one in the shading rings and form a light-emitting gap with the shading rings, the orthographic projection of the anti-peeping light-emitting part on the shading layer is located in the shading unit, and the orthographic projection of the shading ring on the light-emitting layer is located between the corresponding anti-peeping light-emitting part and its adjacent display light-emitting part, and the shading ring can at least block part of the light that is totally reflected on the light-emitting surface of the transparent functional layer, so as to reduce or eliminate the interference of the anti-peeping light-emitting part with the forward light of the display light-emitting part and improve the problem of uneven display.

[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 It is a structural diagram of the display panel in Example 1 of the present application.

[0031] Figure 2 This is a schematic diagram of the anti-peeping principle of the display panel in Example 1 of the present application.

[0032] Figure 3 It is a structural diagram of the display panel in the second embodiment of the present application.

[0033] Figure 4 It is a structural diagram of the display panel in Example 3 of the present application.

[0034] Figure 5 It is a structural diagram of the display device in Example 4 of the present application.

[0035] Description of reference numerals:

[0036] 100, base substrate; 200, driving circuit layer;

[0037] 310, first anode layer; 311, first anode; 312, second anode; 320, pixel definition layer; 330, light-emitting layer; 331, display light-emitting portion; 332, anti-peep light-emitting portion; 340, cathode layer; 350, encapsulation layer; 360, light-shielding layer; 361, light-shielding unit; 362, light-shielding ring; 363, black matrix; 370, color-resist layer; 380, transparent functional layer; 390, spacer layer; 391, enclosure;

[0038] 10. Display panel; 20. Main board. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Example 1

[0043] See also Figure 1 and Figure 2 As shown, the display panel in this embodiment includes a base substrate 100, a driving circuit layer 200, a pixel definition layer 320, a light-emitting layer 330, a light-shielding layer 360, and a transparent functional layer 380. The driving circuit layer 200 is formed on one side of the base substrate 100, and the base substrate 100 includes a glass substrate and a polyimide (Pi) substrate. The pixel definition layer 320 and the light-emitting layer 330 are sequentially formed on the driving circuit layer 200, and the light-emitting layer 330 is located in the area defined by the pixel definition layer 320. The light-shielding layer 360 and the transparent functional layer 380 are sequentially formed on the light-emitting layer 330, and the light-shielding layer 360 and the light-emitting layer 330 form a gap. The light-shielding layer 360 is a light-absorbing material structure layer.

[0044] The luminescent layer 330 includes multiple pixel units, each of which includes multiple display luminescent portions 331 and at least one anti-peeping luminescent portion 332. At least some of the anti-peeping luminescent portions 332 are located between adjacent display luminescent portions 331. The light-shielding layer 360 includes multiple light-shielding units 361 and multiple light-shielding rings 362. The light-shielding units 361 are arranged within the light-shielding rings 362 in a one-to-one correspondence, forming light-emission gaps with the light-shielding rings 362. The orthographic projections of the anti-peeping luminescent portions 332 on the light-shielding layer 360 are located within the light-shielding units 361, and the orthographic projections of the light-shielding rings 362 on the luminescent layer 330 are located between the corresponding anti-peeping luminescent portion 332 and its adjacent display luminescent portion 331. In other words, the orthographic projections of the light-shielding rings 362 on the luminescent layer 330 do not overlap with either the display luminescent portion 331 or the anti-peeping luminescent portion 332.

[0045] It should be noted that each pixel unit may include multiple display light-emitting parts 331 and at least one anti-peeping light-emitting part 332, but is not limited to this. Some pixel units may include multiple display light-emitting parts 331 and at least one anti-peeping light-emitting part 332, and some pixel units may only include multiple display light-emitting parts 331, depending on the specific situation.

[0046] See also Figure 2 As shown, the display panel has an anti-peeping mode. When the anti-peeping mode is off, the anti-peeping light emitting unit 332 is off, and the display light emitting unit 331 displays normally. When the anti-peeping mode is on, the anti-peeping light emitting unit 332 is on, and the forward light emitted by the anti-peeping light emitting unit 332 is blocked by the shading unit 361. The forward light emitted by the display light emitting unit 331 is not disturbed, and the display panel can display clearly when viewed straight on. The oblique light emitted by the anti-peeping light emitting unit 332 is not blocked by the shading unit 361. The oblique light emitted by the display light emitting unit 331 will mix with the oblique light emitted by the anti-peeping light emitting unit 332. When viewed at an angle, the display panel cannot display clearly, thereby achieving an anti-peeping effect.

[0047] The light from the anti-peeping light emitting portion 332 passes through the light exit gap and is emitted from the transparent functional layer 380 . The shading unit 361 limits the minimum anti-peeping angle of the display panel, and the shading ring 362 limits the maximum anti-peeping angle of the display panel.

[0048] Since a transparent functional layer 380 is also provided on the light-shielding layer 360, part of the oblique light emitted by the anti-peeping light-emitting portion 332 may be totally reflected at the light-emitting surface of the transparent functional layer 380 and reach the area where the display light-emitting portion 331 is located. Then, the reflection at the area where the display light-emitting portion 331 is located will interfere with the forward light of the display light-emitting portion 331, causing uneven color and brightness display of the display panel.

[0049] In this embodiment, the display panel includes a base substrate 100 and a pixel definition layer 320, a light-emitting layer 330, a light-shielding layer 360, and a transparent functional layer 380 sequentially formed on the base substrate 100. The light-emitting layer 330 includes a plurality of pixel units, each of which includes a plurality of display light-emitting portions 331 and at least one anti-peep light-emitting portion 332. At least part of the anti-peep light-emitting portion 332 is located between adjacent display light-emitting portions 331. The light-shielding layer 360 includes a plurality of light-shielding units 361 and a plurality of light-shielding rings 362. The light-shielding units 361 correspond to each other. It is arranged in the shading ring 362 and forms a light-emitting gap with the shading ring 362. The orthographic projection of the anti-peeping luminous portion 332 on the shading layer 360 is located in the shading unit 361. The orthographic projection of the light-shielding ring 362 on the luminous layer 330 is located between the corresponding anti-peeping luminous portion 332 and its adjacent display luminous portion 331. The light-shielding ring 362 can at least block part of the light that is totally reflected on the light-emitting surface of the transparent functional layer 380, so as to reduce or eliminate the anti-peeping luminous portion 332 interfering with the forward light of the display luminous portion 331, thereby improving the problem of uneven display.

[0050] For example, see Figure 1 and Figure 2 As shown, the width of the light-emitting gap is configured such that the incident angle α of light from the privacy-preventing light-emitting portion 332 passing through the light-emitting gap is less than the critical angle β at which light undergoes total internal reflection at the transparent functional layer 380. In other words, all light from the privacy-preventing light-emitting portion 332 passing through the light-emitting gap can be emitted from the light-emitting surface of the transparent functional layer 380, while light that may undergo total internal reflection at the privacy-preventing light-emitting portion 332 is completely blocked by the light-shielding ring 362.

[0051] When the incident angle α of the light from the anti-peeping light-emitting portion 332 passing through the light-emitting gap is smaller than the critical angle β at which the light is totally reflected at the transparent functional layer 380, the light-shielding ring 362 can block all the light that is totally reflected at the light-emitting surface of the transparent functional layer 380, thereby eliminating the interference of the anti-peeping light-emitting portion 332 with the forward light of the display light-emitting portion 331 and improving the problem of uneven display.

[0052] See also Figure 1 and Figure 2 As shown, the display panel further includes an encapsulation layer 350, which is located between the light shielding layer 360 and the light emitting layer 330. The encapsulation layer 350 may include a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer formed in sequence.

[0053] It should be noted that the encapsulation layer 350 may include a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer formed in sequence, but is not limited thereto. The encapsulation layer 350 may also be an inorganic encapsulation layer or an organic encapsulation layer, depending on the specific situation.

[0054] The encapsulation layer 350 is formed between the light-emitting layer 330 and the light-shielding layer 360 to prevent the light-emitting layer 330, formed of organic light-emitting materials, from being infiltrated by water and oxygen, which could lead to its failure. The light-shielding layer 360 is formed on the side of the encapsulation layer 350 away from the base substrate 100, increasing the distance between the light-shielding layer 360 and the light-emitting layer 330 and facilitating adjustment of the light emission angle of the anti-peeping light-emitting portion 332.

[0055] See also Figure 1 and Figure 2 As shown, the transparent functional layer 380 includes a flat layer formed on the side of the light shielding layer 360 away from the base substrate 100 and filling the gap between the light shielding unit 361 and the light shielding ring 362. The refractive index of the encapsulation layer 350 is less than or equal to the refractive index of the flat layer.

[0056] It should be noted that the transparent functional layer 380 may include a flat layer, but is not limited thereto. The transparent functional layer 380 may also include functional layers such as a polarizer and a cover glass, depending on the specific situation.

[0057] It should be understood that when light enters a less dense medium from a denser medium, if the angle of incidence is greater than or equal to the critical angle for total internal reflection, total internal reflection will occur at the interface between the denser and less denser media. In this embodiment, the refractive index of the encapsulation layer 350 is less than or equal to that of the planar layer. The encapsulation layer 350 is a less dense medium, and the planar layer is a denser medium. This design prevents light from the privacy-preventing light source 332 from being totally reflected at the interface between the encapsulation layer 350 and the planar layer, preventing it from being reflected into the display light source 331 and interfering with the forward light from the display light source 331.

[0058] See also Figure 1 and Figure 2 As shown, the display panel also includes a first anode layer 310 and a cathode layer 340. The first anode layer 310 is formed on one side of the driving circuit layer 200. The pixel definition layer 320 is formed on the side of the first anode layer 310 away from the base substrate 100. The cathode layer 340 is formed on the side of the light-emitting layer 330 away from the base substrate 100.

[0059] The first anode layer 310 includes a plurality of first anodes 311 and a plurality of second anodes 312. Spaces are formed between adjacent first anodes 311, between adjacent first anodes 311 and second anodes 312, and between adjacent second anodes 312. The pixel definition layer 320 includes a plurality of spaced vias, including first and second vias. The first vias connect to the first anodes 311, and the second vias connect to the second anodes 312. The display light-emitting portion 331 is at least partially located in the first vias, connecting the display light-emitting portion 331 to the cathode layer 340. The anti-peeping light-emitting portion 332 is at least partially located in the second vias, connecting the second anodes 312 to the cathode layer 340.

[0060] The first anode 311 and the second anode 312 are disposed on the same layer, which can reduce the manufacturing cost of the display panel.

[0061] It should be noted that, a gap may be formed between adjacent second anodes 312 , but the present invention is not limited thereto. Adjacent second anodes 312 may also be connected, depending on specific circumstances.

[0062] When adjacent second anodes 312 are spaced apart, each anti-peeping light-emitting portion 332 can be turned on or off individually. With this design, the display panel can be designed with partitioned anti-peeping features. When adjacent second anodes 312 are connected, all anti-peeping light-emitting portions 332 are turned on and off at the same time. With this design, the driving circuit of the anti-peeping light-emitting portion 332 can be simplified, thereby reducing the manufacturing cost of the display panel.

[0063] See also Figure 1 and Figure 2 As shown, the display panel also includes a spacer layer 390. The spacer layer 390 is formed on the side of the pixel definition layer 320 away from the base substrate 100. The spacer layer 390 is a light-absorbing material structure layer and includes at least a barrier 391 arranged around the second via hole. In other words, the privacy-preventing light-emitting portion 332 is surrounded by the barrier 391, which can block light from the privacy-preventing light-emitting portion 332 to the adjacent display light-emitting portion 331.

[0064] The display panel also includes a spacer layer 390, which includes at least a barrier 391 surrounding the second via. The barrier 391 blocks light from the privacy-preventing light-emitting portion 332 toward the adjacent display light-emitting portion 331. This prevents light from the privacy-preventing light-emitting portion 332 from being reflected back by the transparent functional layer 380 above the display light-emitting portion 331, which could cause uneven color and brightness on the display panel. Furthermore, the spacer layer 390 supports the metal mask used to deposit the light-emitting layer 330.

[0065] Example 2

[0066] The main difference between the second embodiment and the first embodiment is that the display panel in the second embodiment further includes a color resist layer 370 .

[0067] See also Figure 3 As shown, the display panel further includes a color resist layer 370, which includes red, green, and blue color resists. The orthographic projection of a portion of the display light-emitting portion 331 on the color resist layer 370 is located within the red color resist, the orthographic projection of a portion of the display light-emitting portion 331 on the color resist layer 370 is located within the green color resist, and the orthographic projection of the remaining portion of the display light-emitting portion 331 on the color resist layer 370 is located within the blue color resist.

[0068] The display light-emitting portion 331 may specifically include a red display light-emitting portion 331, a green display light-emitting portion 331, and a blue display light-emitting portion 331. The orthographic projection of the red display light-emitting portion 331 on the color-resist layer 370 is located within the red color-resist, the orthographic projection of the green display light-emitting portion 331 on the color-resist layer 370 is located within the green color-resist, and the orthographic projection of the blue display light-emitting portion 331 on the color-resist layer 370 is located within the blue color-resist. The light-shielding layer 360 also includes a black matrix 363, which is disposed in the area between the red color-resist, the green color-resist, the blue color-resist, and the light-shielding ring 362.

[0069] It should be noted that the display light-emitting portion 331 may include a red display light-emitting portion 331, a green display light-emitting portion 331 and a blue display light-emitting portion 331, but is not limited thereto. The display light-emitting portion 331 may also be implemented through color filter film technology, that is, the display light-emitting portion 331 is a display light-emitting portion 331 that emits white light. The white light of the display light-emitting portion 331 is converted into red light, green light and blue light through red color resistance, green color resistance and blue color resistance to achieve RGB display. The display light-emitting portion 331 may also be implemented through light color conversion technology, which may depend on the specific situation.

[0070] To improve the contrast of the display device and achieve a black-out effect, OLED display panels typically use polarizers, which effectively reduce the intensity of ambient light reflected on the screen. However, the light transmittance of polarizers is generally only around 44%, and to achieve higher light output, more power is required. In addition, polarizers are thick and brittle, which is not conducive to the development of dynamic bending products.

[0071] In this embodiment, the display panel includes a color resist layer 370 and a black matrix 363. The black matrix 363 can absorb light, and the color resist layer 370 can filter the light emitted by the display light-emitting portion 331 and the external ambient light. The polarizer of the OLED display panel can be eliminated. Not only will the thickness of the functional layer be greatly reduced, but the light output rate can also be increased from 44% to 80%, greatly increasing the light output brightness, thereby reducing the power consumption of the OLED display panel.

[0072] In addition, when the light color of the anti-peeping light-emitting portion 332 is different from the light color of the display light-emitting portion 331, the color resist layer 370 can also filter the light of the anti-peeping light-emitting portion 332. The spacer layer 390 can use spacer columns to support the metal mask, and the enclosure 391 structure can be eliminated. At the same time, the spacer layer 390 can use the same material as the pixel definition layer 320 and be completed in the same process, thereby reducing the production cost of the display panel.

[0073] See also Figure 3 As shown, the light shielding ring 362 and the black matrix 363 are integrally connected.

[0074] It should be noted that the light shielding ring 362 and the black matrix 363 can be integrally connected, but are not limited thereto. The light shielding ring 362 and the black matrix 363 can also be spaced apart, depending on the specific situation.

[0075] The light shielding ring 362 and the black matrix 363 are integrally connected, which can simplify the structure of the light shielding layer 360 and reduce the manufacturing cost of the display panel.

[0076] Example 3

[0077] The main difference between the third embodiment and the first embodiment is that the structure of the anode layer is different.

[0078] See also Figure 4 As shown, the display panel also includes a first anode layer 310, a second anode layer and a cathode layer 340. The first anode layer 310 is formed on the side of the driving circuit layer 200, the pixel definition layer 320 is formed on the side of the first anode layer 310 away from the substrate 100, the second anode layer is formed on the side of the pixel definition layer 320 away from the substrate 100, and the cathode layer 340 is formed on the side of the light-emitting layer 330 away from the substrate 100.

[0079] The first anode layer 310 includes a plurality of spaced-apart first anodes 311. The pixel definition layer 320 includes a plurality of spaced-apart first vias, each of which connects to the first anodes 311. The display light-emitting portion 331 is at least partially located within the first vias, connecting the first anodes 311 and the cathode layer 340. The second anode layer includes a plurality of connected second anodes 312, each of which is located between adjacent first vias. The anti-peep light-emitting portion 332 connects the second anodes 312 and the cathode layer 340.

[0080] The anti-peeping light-emitting portion 332 is disposed in the area between adjacent first via holes, which does not affect the design space of the display light-emitting portion 331 . Compared with a display panel without the anti-peeping light-emitting portion 332 , the aperture ratio of the display panel in this embodiment is not lost.

[0081] Furthermore, compared to Example 1, the distance between the privacy-preventing light-emitting portion 332 and the light-shielding layer 360 is relatively closer in this embodiment, while the distance between the display light-emitting portion 331 and the light-shielding layer 360 is relatively farther. This design reduces the light from the privacy-preventing light-emitting portion 332 from being reflected back by the transparent functional layer 380 above the display light-emitting portion 331, thereby preventing uneven color and brightness on the display panel. The spacer layer 390 can use spacer columns to support the metal mask, eliminating the enclosure 391 structure. Furthermore, the spacer layer 390 can be made of the same material and in the same process as the pixel definition layer 320, thereby reducing the production cost of the display panel.

[0082] Example 4

[0083] See also Figure 5As shown, the display device 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 panels 10 disclosed in the first to third embodiments.

[0084] The display device includes a display panel 10, which includes a base substrate 100 and a pixel definition layer 320, a light-emitting layer 330, a light-shielding layer 360, and a transparent functional layer 380 sequentially formed on the base substrate 100. The light-emitting layer 330 includes a plurality of pixel units, each of which includes a plurality of display light-emitting portions 331 and at least one anti-peeping light-emitting portion 332. At least part of the anti-peeping light-emitting portion 332 is located between adjacent display light-emitting portions 331. The light-shielding layer 360 includes a plurality of light-shielding units 361 and a plurality of light-shielding rings 362. The light-shielding units 361 They are arranged in a one-to-one correspondence within the shading ring 362 and form a light-emitting gap with the shading ring 362. The orthographic projection of the anti-peeping luminous portion 332 on the shading layer 360 is located within the shading unit 361. The orthographic projection of the shading ring 362 on the luminous layer 330 is located between the corresponding anti-peeping luminous portion 332 and its adjacent display luminous portion 331. The shading ring 362 can at least block part of the light that is totally reflected on the light-emitting surface of the transparent functional layer 380, so as to reduce or eliminate the anti-peeping luminous portion 332 interfering with the forward light of the display luminous portion 331, thereby improving the problem of uneven display.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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 pixel definition layer formed on one side of the base substrate, characterized in that: The display panel further includes: a light-emitting layer formed in the pixel definition layer defined area on one side of the base substrate, the light-emitting layer comprising a plurality of pixel units, at least some of the pixel units comprising a plurality of display light-emitting portions and at least one privacy-preventing light-emitting portion, at least some of the privacy-preventing light-emitting portions being located between adjacent display light-emitting portions; A transparent functional layer is formed on a side of the light-emitting layer away from the base substrate; A shading layer is formed between the light-emitting layer and the transparent functional layer, the light-shielding layer and the light-emitting layer form a gap, the light-shielding layer includes a plurality of shading units and a plurality of shading rings, the shading units are arranged in a one-to-one correspondence within the shading rings and form a light-emitting gap with the shading rings, the orthographic projection of the anti-peeping luminous portion on the shading layer is located within the shading unit, the orthographic projection of the shading ring on the light-emitting layer is located between the corresponding anti-peeping luminous portion and its adjacent display luminous portion, the width of the light-emitting gap is configured as follows: the incident angle of the light of the anti-peeping luminous portion passing through the light-emitting gap is less than the critical angle of its total reflection in the transparent functional layer, the shading unit limits the minimum anti-peeping angle of the display panel, and the shading ring limits the maximum anti-peeping angle of the display panel.

2. The display panel according to claim 1, wherein: The display panel also includes a color resist layer, which includes red color resist, green color resist and blue color resist. The orthographic projection of part of the display light-emitting part on the color resist layer is located within the red color resist, the orthographic projection of part of the display light-emitting part on the color resist layer is located within the green color resist, and the orthographic projection of the remaining part of the display light-emitting part on the color resist layer is located within the blue color resist. The shading layer also includes a black matrix, which is arranged in the area between the red color resist, the green color resist, the blue color resist and the shading ring.

3. The display panel according to claim 2, wherein: The light shielding ring and the black matrix are integrally connected.

4. The display panel according to claim 1, wherein: The display panel further includes an encapsulation layer located between the light shielding layer and the light emitting layer.

5. The display panel according to claim 4, wherein: The transparent functional layer includes a flat layer, which is formed on a side of the light shielding layer away from the base substrate and fills the gap between the light shielding unit and the light shielding ring. The refractive index of the encapsulation layer is less than or equal to the refractive index of the flat layer.

6. The display panel according to claim 1, wherein: The display panel further includes a first anode layer and a cathode layer, wherein the first anode layer is formed on one side of the base substrate, the pixel definition layer is formed on a side of the first anode layer away from the base substrate, and the cathode layer is formed on a side of the light emitting layer away from the base substrate; The first anode layer includes a plurality of first anodes and a plurality of second anodes, with spaces formed between adjacent first anodes and spaces formed between adjacent first anodes and second anodes; The pixel definition layer includes a plurality of vias arranged at intervals, and the vias include a first via and a second via, the first via is connected to the first anode, the second via is connected to the second anode, the display light-emitting portion is at least partially located in the first via, the display light-emitting portion is connected to the first anode and the cathode layer, and the anti-peeping light-emitting portion is at least partially located in the second via, the anti-peeping light-emitting portion is connected to the second anode and the cathode layer.

7. The display panel according to claim 6, wherein: The display panel further includes a spacer layer formed on a side of the pixel definition layer away from the base substrate. The spacer layer is a light absorbing material structure layer and includes at least a barrier disposed around the second via hole.

8. The display panel according to claim 1, wherein: The display panel further includes a first anode layer, a second anode layer, and a cathode layer, wherein the first anode layer is formed on one side of the base substrate, the pixel definition layer is formed on a side of the first anode layer away from the base substrate, the second anode layer is formed on a side of the pixel definition layer away from the base substrate, and the cathode layer is formed on a side of the light emitting layer away from the base substrate; The first anode layer includes a plurality of first anodes spaced apart from each other, the pixel definition layer includes a plurality of first via holes spaced apart from each other, the first via holes are connected to the first anodes, the display light-emitting portion is at least partially located in the first via holes, and the display light-emitting portion is connected to the first anodes and the cathode layer; The second anode layer includes a plurality of connected second anodes, the second anodes are located between adjacent first via holes, and the anti-peeping light-emitting portion connects the second anodes and the cathode layer.

9. A display device, characterized in that: include: The display panel according to any one of claims 1 to 8; A mainboard is connected to the display panel.

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