Display panel and display device

Abstract

The present application relates to a display panel and a display device, the display panel comprising a base substrate 100, and an emitting layer 330 and a light-shielding layer 360 sequentially formed on one side of the base substrate 100, the emitting layer 330 comprising a first pixel unit 330a, the first pixel unit 330a comprising a plurality of display sub-pixels 331a of different colors and a plurality of anti-peeping sub-pixels 331b of different colors, at least one side of each display sub-pixel 331a being provided with an anti-peeping sub-pixel 331b, the light-shielding layer 360 comprising a light-shielding unit 361, and the orthogonal projection of the anti-peeping sub-pixel 331b on the light-shielding layer 360 being disposed within the light-shielding unit 361. In the present application, display sub-pixels of different colors can be overlapped with each other to obtain display lights of various colors, and anti-peeping sub-pixels of different colors can be overlapped with each other to obtain anti-peeping lights of various colors, and when the anti-peeping mode is turned on, anti-peeping lights of various colors can be selected to interfere with the display light, thereby improving the anti-peeping effect of the display panel.

Description

[Technical Field]

[0001] The present application is in the field of displays, and in particular, relates to display panels and display devices.

[0002] This application claims priority to a Chinese patent application filed with the China Patent Office on February 20, 2023, bearing application number 2023101360501 and entitled "Display Panel and Display Device," the entire contents of which are incorporated herein by reference. [Background technology]

[0003] OLED (Organic Light-Emitting Diode) display panels do not require a backlight and have advantages such as being bendable, thin, high brightness, low power consumption, fast response, and a wide color gamut, and are widely used in electronic products such as televisions, mobile phones, and laptops. Due to the active light-emitting properties of organic light-emitting diodes, OLED display panels have a wide viewing angle, typically reaching 170 degrees. The wider the viewing angle of a display panel, the better the visual experience it provides. However, in some cases, it may be desirable to reduce the viewing angle of the display panel to effectively protect trade secrets or personal privacy.

[0004] Here, by installing anti-peeping pixels on the display panel and using the light emitted by the anti-peeping pixels to interfere with the light of the display pixels, it is possible to prevent peeping when viewed at an angle, but the anti-peeping effect is not good. Summary of the Invention [Means for solving the problem]

[0005] The present application provides a display panel and a display device that can improve the effectiveness of preventing peeping.

[0006] In a first aspect, the present application provides a display panel including a base substrate, the display panel further including a light-emitting layer and a light-shielding layer; the light-emitting layer is formed on one side of the base substrate, and includes a first pixel unit, the first pixel unit including a plurality of display sub-pixels of different colors and a plurality of anti-peeping sub-pixels of different colors, the anti-peeping sub-pixels being disposed on at least one side of each of the display sub-pixels in the first pixel unit; The light-shielding layer is formed on the side of the light-emitting layer away from the base substrate and includes a light-shielding unit, and the orthogonal projection of the anti-peeping sub-pixel on the light-shielding layer is disposed within the light-shielding unit.

[0007] In a second aspect, the present application provides a display device including the aforementioned display panel and a main board connected to the display panel.

[0008] In the present application, the display panel includes an emitting layer and a light-shielding layer formed in sequence on one side of a base substrate, the emitting layer including a first pixel unit, the first pixel unit including a plurality of display sub-pixels of different colors and a plurality of anti-peeping sub-pixels of different colors, by overlapping the display sub-pixels of different colors with each other, display light of various colors can be obtained, and by overlapping the anti-peeping sub-pixels of different colors with each other, anti-peeping light of various colors can be obtained, and when the anti-peeping mode is turned on, the anti-peeping light of various colors can be selected to interfere with the display light, thereby improving the anti-peeping effect of the display panel compared to when a single anti-peeping sub-pixel is set.

[0009] Other features and advantages of the present application will be apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0010] 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 present disclosure. [Brief explanation of the drawings]

[0011] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments according to the present application and are used together with this specification to explain the principles of the present application. The accompanying drawings in the following description are only a part of the embodiments of the present application, and it will be apparent to those skilled in the art that other accompanying drawings can be derived from these drawings without any creative effort. [Figure 1] 1 is a schematic diagram showing the structure of a display panel according to a first embodiment of the present invention. [Figure 2] 1 is a schematic diagram illustrating a structure of a pixel unit according to a first embodiment of the present invention. [Figure 3] 1 is a schematic diagram of the principle of preventing peeping of a display panel in accordance with a first embodiment of the present application. [Figure 4] FIG. 2 is a schematic diagram of a structure 2 of a pixel unit according to the first embodiment of the present invention. [Figure 5] FIG. 2 is a schematic diagram of a pixel unit structure 3 according to the first embodiment of the present invention. [Figure 6] 1 is a schematic diagram of a pixel unit structure 4 according to the first embodiment of the present invention. FIG. [Figure 7] 2 is a schematic diagram of an anti-peeping pattern of a display panel according to the first embodiment of the present invention. FIG. [Figure 8] 1 is a schematic diagram of an anode pattern of a display panel according to Embodiment 1 of the present application. [Figure 9] FIG. 2 is a schematic diagram showing the structure of a display panel according to a second embodiment of the present invention. [Figure 10] FIG. 10 is a schematic diagram showing the structure of a pixel unit according to a second embodiment of the present invention. [Figure 11] FIG. 10 is a schematic diagram showing the structure of a display unit according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] Next, exemplary embodiments will be described in more detail with reference to the accompanying drawings. However, exemplary embodiments may be embodied in various forms and should not be construed as being limited to the examples set forth herein. Rather, providing these embodiments will make this application more comprehensive and complete, and will comprehensively convey the idea of ​​exemplary embodiments to those skilled in the art.

[0013] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to provide a thorough understanding of the embodiments of the present application. However, those skilled in the art will understand that it is possible to implement the technical solutions of the present application without one or more of the specific details, or to employ other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the present application.

[0014] The present application will be described in more detail below with reference to the accompanying drawings and specific embodiments. In this specification, it should be noted that the technical features related to the various embodiments of the present application described below can be combined with each other as long as they are not inconsistent with each other. The embodiments described below with reference to the accompanying drawings are illustrative and are intended to be used for interpreting the present application, but should not be understood as limiting the present application.

[0015] Embodiment 1 1 to 3, the display panel according to this embodiment includes a base substrate 100, a driving circuit layer 200 sequentially formed on one side of the base substrate 100, a first anode layer 310, a pixel defining layer 320, a light-emitting layer 330, a cathode layer 340, and a light-shielding layer 360.

[0016] The light-emitting layer 330 includes a first pixel unit 330a, which includes a plurality of display subpixels 331a of different colors and a plurality of anti-peeping subpixels 331b of different colors. For example, the plurality of display subpixels 331a of different colors include a red display subpixel 331, a green display subpixel 332, and a blue display subpixel 333. The plurality of anti-peeping subpixels 331b of different colors include a red anti-peeping subpixel 334, a green anti-peeping subpixel 335, and a blue anti-peeping subpixel 336. Each display subpixel 331a of the first pixel unit 330a has an anti-peeping subpixel 331b on at least one side. The first anode layer 310 includes a plurality of first anodes 311 arranged at intervals, and the pixel definition layer 320 includes a plurality of via holes 321. Each display sub-pixel 331a is at least partially disposed within the via hole 321 and is correspondingly connected to the first anode 311. The light-shielding layer 360 includes a light-shielding unit 361, which has a one-to-one correspondence with the anti-peeping sub-pixel 331b, and the orthogonal projection of the anti-peeping sub-pixel 331b on the light-shielding layer 360 is disposed within the light-shielding unit 361.

[0017] The light-emitting layer 330 may also include a second pixel unit 330b, which includes multiple display subpixels 331a of different colors, such as a red display subpixel 331, a green display subpixel 332, and a blue display subpixel 333; that is, the first pixel unit 330a includes an anti-peeping subpixel 331b, and the second pixel unit 330b does not include an anti-peeping subpixel 331b.

[0018] The display panel has an anti-peeping mode, and when the anti-peeping mode is off, the display sub-pixel 331a displays normally and the anti-peeping sub-pixel 331b is off, allowing the display panel to display clearly when viewed directly or obliquely. When the anti-peeping mode is on, the anti-peeping sub-pixel 331b is turned on, and the light emitted forward from the anti-peeping sub-pixel 331b is blocked by the shading unit 361, while the light emitted forward from the display sub-pixel 331a is not blocked, allowing the display panel to display clearly when viewed directly. However, the light emitted obliquely from the anti-peeping sub-pixel 331b is not blocked by the shading unit 361, and the light emitted obliquely from the display sub-pixel 331a and the light emitted obliquely from the anti-peeping sub-pixel 331b are mixed together, preventing the display panel from displaying clearly when viewed obliquely, thereby fulfilling the function of preventing peeping.

[0019] In this embodiment, the display panel includes an emitting layer 330 and a light-shielding layer 360 formed in sequence on one side of the base substrate 100. The emitting layer 330 includes a first pixel unit 330a. The first pixel unit 330a includes a plurality of display sub-pixels 331a of different colors and a plurality of anti-peeping sub-pixels 331b of different colors. By overlapping the display sub-pixels 331a of different colors, display light of various colors can be obtained. By overlapping the anti-peeping sub-pixels 331b of different colors, anti-peeping light of various colors can be obtained. When the anti-peeping mode is turned on, the anti-peeping light of various colors can be selected to interfere with the display light, thereby improving the anti-peeping effect of the display panel compared to when a single anti-peeping sub-pixel 331b is set.

[0020] For example, as shown in Figures 1 to 3, the multiple display sub-pixels 331a of different colors include a red display sub-pixel 331, a green display sub-pixel 332, and a blue display sub-pixel 333 arranged in the row direction, and the multiple anti-peeping sub-pixels 331b of different colors include a red anti-peeping sub-pixel 334, a green anti-peeping sub-pixel 335, and a blue anti-peeping sub-pixel 336 arranged in the row direction, where the red anti-peeping sub-pixel 334 is arranged on at least one side of the red display sub-pixel 331 in the column direction, the green anti-peeping sub-pixel 335 is arranged on one side of the green display sub-pixel 332 in the column direction, and the blue anti-peeping sub-pixel 336 is arranged on one side of the blue display sub-pixel 333 in the column direction. The red display subpixel 331, the green display subpixel 332, and the blue display subpixel 333 have the same size and shape when projected orthogonally onto the base substrate 100, and the red anti-peeping subpixel 334, the green anti-peeping subpixel 335, and the blue anti-peeping subpixel 336 have the same size and shape when projected orthogonally onto the base substrate 100.

[0021] When red display subpixels 331, green display subpixels 332, and blue display subpixels 333 are arranged in the row direction, the red display subpixels 331, green display subpixels 332, and blue display subpixels 333 are made the same in size and shape, and the red anti-peeping subpixels 334, green anti-peeping subpixels 335, and blue anti-peeping subpixels 336 are made the same in size and shape, and the subpixels of different colors are vapor-deposited using a set of fine metal masks (FMM), thereby reducing the manufacturing cost of the display panel.

[0022] 4 , in some embodiments, a red anti-peeping subpixel 334 is provided on at least one side of a red display subpixel 331 in the column direction, a green anti-peeping subpixel 335 is provided on one side of a blue display subpixel 333 in the column direction, and a blue anti-peeping subpixel 336 is provided on one side of a green display subpixel 332 in the column direction. The orthogonal projection of the blue anti-peeping subpixel 336 on the base substrate 100 is larger than the orthogonal projection of the green anti-peeping subpixel 335 on the base substrate 100, and the orthogonal projection of the blue display subpixel 333 on the base substrate 100 is larger than the orthogonal projection of the green display subpixel 332 on the base substrate 100. Designed in this manner, the space occupied by the green anti-peeping subpixel 335 and the blue display subpixel 333 is the same as the space occupied by the blue anti-peeping subpixel 336 and the green display subpixel 332.

[0023] The red display sub-pixel 331 and the red anti-peeping sub-pixel 334 are formed from an organic light-emitting material that emits red light, the green display sub-pixel 332 and the green anti-peeping sub-pixel 335 are formed from an organic light-emitting material that emits green light, and the blue display sub-pixel 333 and the blue anti-peeping sub-pixel 336 are formed from an organic light-emitting material that emits blue light, where the organic light-emitting material that emits green light has a relatively high brightness and the organic light-emitting material that emits blue light has a relatively low brightness.

[0024] According to the brightness characteristics of different organic light-emitting materials, a green anti-peeping subpixel 335 is disposed on one side of the blue display subpixel 333 in the column direction, and a blue anti-peeping subpixel 336 is disposed on one side of the green display subpixel 332 in the column direction, the size of the blue anti-peeping subpixel 336 being larger than that of the green anti-peeping subpixel 335, and the size of the blue display subpixel 333 being larger than that of the green display subpixel 332, thereby reducing the brightness difference between the green display subpixel 332 and the blue display subpixel 333, and between the green anti-peeping subpixel 335 and the blue display subpixel 333. Meanwhile, by staggering the green anti-peeping subpixel 335 and the green display subpixel 332, and staggering the blue anti-peeping subpixel 336 and the blue display subpixel 333, the light mixing effect can be improved, and the anti-peeping effect of the display panel can be enhanced.

[0025] 2, the first pixel unit 330a includes three anti-peeping subpixels 331b, namely, a red anti-peeping subpixel 334, a green anti-peeping subpixel 335, and a blue anti-peeping subpixel 336. One anti-peeping subpixel located in the center of the row direction is located on one side of the display subpixel in the column direction, and the other two anti-peeping subpixels are located on the other side of the display subpixel in the column direction. For example, the blue anti-peeping subpixel 336 is located in the center of the row direction and is located below the display subpixel in the column direction, while the red anti-peeping subpixel 334 and the green anti-peeping subpixel 335 are located above the display subpixel in the column direction.

[0026] The arrangement order of the red display subpixel 331, the green display subpixel 332, and the blue display subpixel 333 in the row direction can be set as appropriate, and the arrangement order of the red anti-peeping subpixel 334, the green anti-peeping subpixel 335, and the blue anti-peeping subpixel 336 can be set as appropriate, and the present application is not limited to this.

[0027] The blue anti-peeping subpixel 336 is arranged in the center and is located below the display subpixel in the column direction, while the red anti-peeping subpixel 334 and the green anti-peeping subpixel 335 are located above the display subpixel in the column direction. This allows the red anti-peeping subpixel 334, the green anti-peeping subpixel 335 and the blue anti-peeping subpixel 336 to be designed with larger horizontal dimensions, thereby reducing the loss of aperture ratio of the display panel.

[0028] 5, in some embodiments, the first pixel unit 330a includes three anti-peeping subpixels 331b, each of which is a red anti-peeping subpixel 334, a green anti-peeping subpixel 335, and a blue anti-peeping subpixel 336. One anti-peeping subpixel arranged beside the row is arranged on one side of the display subpixel in the column direction, and the other two anti-peeping subpixels are arranged on the other side of the display subpixel in the column direction. For example, the green anti-peeping subpixel 335 is arranged on the left side of the row and on the top side of the column, the blue anti-peeping subpixel 336 is arranged in the center of the row and on the bottom side of the column, and the red anti-peeping subpixel 334 is arranged on the right side of the row and on the bottom side of the column.

[0029] If the two anti-spying sub-pixels 331b are located on the same side of the display sub-pixel 331a in the column direction and are adjacent to each other, the light mixing effect of the two anti-spying sub-pixels 331b will be better.

[0030] The arrangement order of the red display subpixel 331, the green display subpixel 332, and the blue display subpixel 333 in the row direction can be set appropriately depending on the situation, and the arrangement order of the red anti-peeping subpixel 334, the green anti-peeping subpixel 335, and the blue anti-peeping subpixel 336 can also be set appropriately depending on the situation, and any two anti-peeping subpixels can be arranged on the same side of the display subpixel and adjacent to each other.

[0031] Referring to FIG. 6, in some embodiments, the first pixel unit 330a includes two red anti-peeping subpixels 334, one green anti-peeping subpixel 335, and one blue anti-peeping subpixel 336, and the two red anti-peeping subpixels 334 are arranged on both sides of the red display subpixel 331 in the column direction.

[0032] The red display subpixel 331 and the red anti-peeping subpixel 334 are formed of a red light-emitting organic light-emitting material, which has a relatively long lifetime. The first pixel unit 330a includes two red anti-peeping subpixels 334, which are arranged on both sides of the red display subpixel 331 in the column direction. By arranging the two anti-peeping subpixels on the same side and adjacent to each other in this way, light mixing can be improved. In addition, when the brightness difference between subpixels of different colors is configured to be small, the lifetime difference between subpixels of different colors is also small.

[0033] 2 and 7, the light-emitting layer 330 may include a second pixel unit 330b, which includes a plurality of display sub-pixels 331a of different colors, for example, a red display sub-pixel 331, a green display sub-pixel 332, and a blue display sub-pixel 333. The light-emitting layer 330 may include a plurality of anti-peeping areas 337, each including a first pixel unit 330a and a second pixel unit 330b, such that the arrangement of the first pixel units 330a in different anti-peeping areas 337 is different, and the text or graphic structures formed are also different.

[0034] The light emitting layer 330 may include a plurality of anti-peeping areas 337, but is not limited to this, and the light emitting layer 330 may be a single anti-peeping area 337 as a whole depending on the situation.

[0035] In some display panels, the light-emitting layer 330 only includes pixel units with anti-peeping sub-pixels, and when the anti-peeping function is turned on, all of the anti-peeping sub-pixels are turned on simultaneously, which has the same effect as a layer of color-changing film, but has a poor anti-peeping effect.

[0036] In this embodiment, the light-emitting layer 330 may also include a second pixel unit 330b, which includes multiple display sub-pixels 331a of different colors. The light-emitting layer 330 is divided into multiple anti-peeping areas 337, and the first pixel units 330a are arranged differently in different anti-peeping areas 337. The anodes of at least the same-color anti-peeping sub-pixels of the first pixel units 330a in each anti-peeping area 337 are connected to each other, so that the first pixel units 330a form different text or graphic structures. Compared with a solution in which the light-emitting layer 330 only includes pixel units with anti-peeping sub-pixels, the anti-peeping sub-pixels form graphic structures or text structures when the anti-peeping function is turned on, creating a strong contrast with the display screen. This, on the one hand, improves the anti-peeping effect of the display panel and, on the other hand, reduces the power consumption of the display panel.

[0037] Referring to FIG. 1 , the display panel further includes a second anode layer 390, which is disposed between the pixel defining layer 320 and the light-emitting layer 330. That is, the first anode layer 310, the pixel defining layer 320, the second anode layer 390, the light-emitting layer 330, the cathode layer 340, and the light-shielding layer 360 are sequentially formed on one side of the driving circuit layer 200 of the base substrate 100.

[0038] The first anode layer 310 includes a plurality of spaced apart first anodes 311, the pixel definition layer 320 includes a plurality of via holes 321, the second anode layer 390 includes a plurality of second anodes 391, the display sub-pixels are at least partially disposed within the via holes 321 and connected to the first anodes 311, and the anti-spy sub-pixels 331b are disposed between adjacent via holes 321 and connected to the second anodes 391.

[0039] By providing the anti-peeping subpixels 331b between adjacent via holes 321, the anti-peeping subpixels 331b can reduce or avoid occupying the design space of the display subpixels 331a, and the loss of aperture ratio of the display panel can be reduced or avoided.

[0040] Referring to Figures 1 and 7, in each anti-peeping area, the second anode 391 corresponding to the red anti-peeping subpixel 334 is connected, the second anode 391 corresponding to the green anti-peeping subpixel 335 is connected, and the second anode 391 corresponding to the blue anti-peeping subpixel 336 is connected.

[0041] In the anti-peeping mode, the user can select and turn on at least one of the red anti-peeping subpixel 334, the green anti-peeping subpixel 335, and the blue anti-peeping subpixel 336, and select the brightness of the red anti-peeping subpixel 334, the green anti-peeping subpixel 335, and the blue anti-peeping subpixel 336 to form a strong contrast between the anti-peeping pattern and the display pattern, thereby achieving the best anti-peeping effect.

[0042] 8 , it should be noted that two or three of the second anodes 391 corresponding to the red anti-peeping subpixels 334, the green anti-peeping subpixels 335, and the blue anti-peeping subpixels 336 may be connected. For example, the second anode 391 corresponding to the red anti-peeping subpixels 334 and the second anode 391 corresponding to the green anti-peeping subpixels 335 may be connected to allow a user to select yellow light anti-peeping or white light anti-peeping. If a user selects yellow pattern anti-peeping, the red anti-peeping subpixels 334 and the green anti-peeping subpixels 335 are simultaneously turned on; if a user selects white pattern anti-peeping, the red anti-peeping subpixels 334, the green anti-peeping subpixels 335, and the blue anti-peeping subpixels 336 are simultaneously turned on.

[0043] 1 to 4, each anti-spy subpixel 331b may include a hollow region 3311 and an edge region 3312 on at least one side of hollow region 3311. The shape of hollow region 3311 may be set according to circumstances, for example, the center of anti-spy subpixel 331b may be partially hollowed out to form a circular structure, or the center of anti-spy subpixel 331b may be entirely hollowed out, with edge regions 3312 located on both sides of hollow region 3311 in the row or column direction.

[0044] Referring to Figure 3, the side of the light-shielding layer 360 of the display panel away from the base substrate 100 usually further includes structures such as a cover plate glass and a polarizer. The light passing around the light-shielding unit 361 of the anti-peeping sub-pixel 331b is anti-peeping light. The anti-peeping light emitted from the edge region 3312 of the anti-peeping sub-pixel 331b can pass through structures such as the cover plate glass and polarizer. However, since the emission angle is larger than that of the edge region 3312, the anti-peeping light emitted from the center region of the anti-peeping sub-pixel is totally reflected by the cover plate glass, polarizer, etc., which not only fails to fulfill its role of preventing peeping, but may also interfere with the light emission of the display sub-pixel.

[0045] In this embodiment, the anti-peeping subpixel 331b includes a hollow region 3311 and an edge region 3312 on at least one side of the hollow region 3311. The anti-peeping light emitted from the edge region 3312 of the anti-peeping subpixel 331b can pass through a structure such as a cover plate glass or a polarizer, thereby fulfilling the role of preventing peeping. The hollow region 3311 of the anti-peeping subpixel does not have any organic light-emitting material deposited thereon, which reduces the consumption of organic light-emitting material and reduces the manufacturing costs of the display panel.

[0046] In addition, since the shading unit 361 is configured to block small-angle anti-peeping light from the anti-peeping sub-pixel, the shading unit 361 can be cut out according to the specific situation and the shape of the anti-peeping sub-pixel. 1 , the display panel further includes a sealing layer 350, which is formed on a side of the cathode layer 340 away from the base substrate 100, and a light-shielding layer 360 is formed on a side of the sealing layer 350 away from the base substrate 100. The sealing layer 350 includes a first inorganic sealing layer 351, an organic sealing layer 352, and a second inorganic sealing layer 353, which are formed on a side of the cathode layer 340 away from the base substrate 100, a side of the organic sealing layer 352 away from the base substrate 100, and a side of the organic sealing layer 352 away from the base substrate 100.

[0047] The encapsulation layer 350 is formed between the cathode layer 340 and the light-shielding layer 360 to prevent the light-emitting layer 330, which is made of an organic light-emitting material, from being damaged by water or oxygen. The light-shielding layer 360 is formed on the side of the encapsulation layer 350 away from the base substrate 100, which increases the distance between the light-shielding layer 360 and the light-emitting layer 330 and makes it easier to adjust the light emission angle of the anti-peeping sub-pixel.

[0048] 1 , the display panel further includes a color resist layer 370 and a reflection reduction layer 380. The color resist layer 370 is formed on the side of the encapsulation layer 350 away from the base substrate 100. The color resist layer 370 includes a plurality of color resists 371, which are arranged in one-to-one correspondence with the display sub-pixels 331a on the color resist layer 370 when orthogonally projected. The plurality of color resists 371 are red, green, and blue color resists, respectively. The red, green, and blue color resists correspond one-to-one with the red display sub-pixels 331, 332, and 333. The light-shielding layer 360 further includes a black matrix 362, where the black matrix 362 and the light-shielding units 361 are arranged in the same layer, and the black matrix 362 is arranged around the red, green, and blue color resists. There are light exit gaps between the periphery of the light-shielding unit 361 and the black matrix 362, and between the periphery of the light-shielding unit 361 and the color resist, which allow the anti-peeping subpixels to easily emit light from the periphery of the light-shielding unit 361. The reflection reduction layer 380 is formed on the side of the color resist layer 370 away from the base substrate 100.

[0049] To improve the contrast of display devices and achieve a solid black effect, OLED display panels typically use polarizers, which effectively reduce the intensity of reflected ambient light on the screen. However, polarizers typically have a light transmittance of around 44%, requiring more power to achieve higher luminance. Furthermore, polarizers are thick and the material is fragile, making them unsuitable for dynamic bending applications.

[0050] The display panel of this embodiment includes a reflection-reducing layer 380, which can reduce the reflection intensity of external ambient light on the screen. The reflection-reducing layer 380 also has a certain blocking effect, protecting the OLED display panel. The use of the reflection-reducing layer 380 reduces the reflection intensity of external ambient light on the screen. The use of the color resist layer 370 blocks external light and filters the light emitted by the display light-emitting units, eliminating the need for a polarizer in the OLED display panel. This not only significantly reduces the thickness of the functional layers, but also increases the light-emitting efficiency from 44% to 80%, significantly improving the light-emitting brightness and reducing the power consumption of the OLED display panel.

[0051] Embodiment 2 The main difference between Embodiment 2 and Embodiment 1 is that the light-emitting layer 330 of Embodiment 1 includes a first pixel unit 330a and a second pixel unit 330b, while the light-emitting layer 330 of Embodiment 2 includes only the first pixel unit 330a. That is, the light-emitting layer 330 of Embodiment 2 includes only the first pixel unit 330a, but does not include the second pixel unit 330b. The first pixel unit 330a includes a plurality of display sub-pixels 331a of different colors and a plurality of anti-peeping sub-pixels 331b of different colors. The plurality of display sub-pixels 331a of different colors includes a red display sub-pixel 331, a green display sub-pixel 332, and a blue display sub-pixel 333. The plurality of anti-peeping sub-pixels 331b of different colors includes a red anti-peeping sub-pixel 334, a green anti-peeping sub-pixel 335, and a blue anti-peeping sub-pixel 336.

[0052] The display panel further includes spaced apart second anodes 391, each second anode 391 being connected to one anti-peeping sub-pixel in one-to-one correspondence, i.e., each anti-peeping sub-pixel can be individually turned on or off. The light-emitting layer 330 includes first pixel units 330a, each of which includes a red anti-peeping sub-pixel 334, a green anti-peeping sub-pixel 335, and a blue anti-peeping sub-pixel 336. Each anti-peeping sub-pixel 331b is designed to be individually turned on or off, thereby forming a variable anti-peeping pattern on the display panel and achieving a better anti-peeping effect.

[0053] In addition, the anti-peeping subpixels 331b can all be individually turned on or off, so that the anti-peeping subpixels 331b can be controlled according to the color of the display subpixel. For example, when a first pixel unit 330a displays red, the green anti-peeping subpixel 335 and the blue anti-peeping subpixel 336 can be turned on to adjust the first pixel unit 330a to display white light. When at least some or all of the first pixel units 330a display white, the display screen is fully interfered with, thereby achieving the best anti-peeping effect.

[0054] Referring to FIG. 9, the second anode 391 is provided in the same layer as the first anode 311 , that is, between the driving circuit layer 200 and the pixel definition layer 320 . By providing the second anode 391 in the same layer as the first anode 311, the manufacturing process of the display panel can be simplified, and the manufacturing cost of the display panel can be reduced.

[0055] Referring to FIG. 9, the light-blocking unit 361 includes a first electrode 3611, a color-changing structure layer 3612, and a second electrode 3613, which are formed in sequence.

[0056] The display panel has an anti-peeping mode, and when the anti-peeping mode is on, a voltage is applied between the first electrode 3611 and the second electrode 3613, and the color-changing structure layer 3612 becomes opaque and can block light, and when the anti-peeping mode is off, the color-changing structure layer 3612 becomes transparent and can transmit light.

[0057] The light blocking unit 361 can block light when the anti-peeping mode is on, and can transmit light when the anti-peeping mode is off. Therefore, in this design, the red anti-peeping subpixel 334, the green anti-peeping subpixel 335, and the blue anti-peeping subpixel 336 can be used as display subpixels participating in the display when the anti-peeping mode is off. When the red anti-peeping subpixel 334, the green anti-peeping subpixel 335, and the blue anti-peeping subpixel 336 participate in the display, the aperture ratio of the display panel with the anti-peeping subpixels is hardly reduced compared to a display panel with conventional red, green, and blue display subpixels.

[0058] Embodiment 3 11 , the present application further provides a display device, which includes a display panel 10 and a main board 20, and the main board 20 is connected to the display panel 10 to drive the display panel 10 to display a screen. The display panel 10 includes the display panel 10 disclosed in Embodiment 1 and Embodiment 2.

[0059] The display device of this embodiment includes a display panel 10, which includes an emitting layer 330 and a light-shielding layer 360 formed in sequence on one surface of a base substrate 100. The emitting layer 330 includes a first pixel unit 330a, which includes a plurality of display sub-pixels of different colors and a plurality of anti-peeping sub-pixels of different colors. The display sub-pixels of different colors can be stacked on top of each other to obtain display light of different colors. The anti-peeping sub-pixels of different colors can be stacked on top of each other to obtain anti-peeping light of different colors. When the anti-peeping mode is turned on, anti-peeping light of various colors can be selected to interfere with the display light, which can improve the anti-peeping effect of the display panel 10 compared to a single anti-peeping sub-pixel setting.

[0060] Terms such as "first," "second," etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance, nor do they implicitly designate the number of technical features shown. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In this specification, "plurality" means two or more than two, unless expressly limited otherwise.

[0061] In this application, unless otherwise expressly and limitingly, terms such as "attached," "connected," etc. shall be understood broadly, and may refer to, for example, a fixed connection, a detachable connection, or an integral connection, and "connection" may be a mechanical connection or an electrical connection, and "connection" may be a direct connection, an indirect connection via an intermediate medium, an internal communication between two elements, or an interaction between two elements. Those skilled in the art will be able to understand the specific meanings of the above terms in this application depending on the specific circumstances.

[0062] In the description herein, reference to terms such as "some embodiments," "exemplary," and the like means that a particular feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more of the embodiments or examples. Furthermore, without mutual inconsistency, one skilled in the art may combine different embodiments or examples and features of different embodiments or examples described herein.

[0063] Although the embodiments of the present application have been shown and described above, the above embodiments are illustrative and are not to be construed as limitations of the present application. A person skilled in the art can change, modify, replace, and alter the above embodiments within the scope of the present application, and therefore, it should be understood that any changes or modifications made in accordance with the claims and specification of the present application are included within the scope of the present application.

Claims

1. A display panel including a base substrate, the display panel further includes a light-emitting layer and a light-shielding layer; the light-emitting layer is formed on one side of the base substrate, and includes a first pixel unit, the first pixel unit including a plurality of display sub-pixels of different colors and a plurality of anti-peeping sub-pixels of different colors, the anti-peeping sub-pixels being disposed on at least one side of each of the display sub-pixels in the first pixel unit; The light-shielding layer is formed on a side of the light-emitting layer away from the base substrate and includes a light-shielding unit, and a positive projection of the anti-peeping sub-pixel on the light-shielding layer is disposed within the light-shielding unit. A display panel characterized by:

2. the plurality of different color display sub-pixels include red, green, and blue display sub-pixels arranged in a row direction, and the plurality of different color anti-peeping sub-pixels include red, green, and blue anti-peeping sub-pixels arranged in a row direction, the red anti-peeping sub-pixels being arranged on at least one side of the red display sub-pixels in the column direction, the green anti-peeping sub-pixels being arranged on one side of the green display sub-pixels in the column direction, and the blue anti-peeping sub-pixels being arranged on one side of the blue display sub-pixels in the column direction; or the red anti-peeping subpixel is disposed on at least one side of the red display subpixel in the column direction, the green anti-peeping subpixel is disposed on one side of the blue display subpixel in the column direction, the blue anti-peeping subpixel is disposed on one side of the green display subpixel in the column direction, and the orthogonal projection of the blue anti-peeping subpixel on the base substrate is larger than the orthogonal projection of the green anti-peeping subpixel on the base substrate, and the orthogonal projection of the blue display subpixel on the base substrate is larger than the orthogonal projection of the green display subpixel on the base substrate.

2. The display panel according to claim 1.

3. The first pixel unit includes three anti-peeping sub-pixels, one of which is disposed in the center of the row direction and is located on one side of the display sub-pixel in the column direction, and the other two of which are disposed on the other side of the display sub-pixel in the column direction.

3. The display panel according to claim 2.

4. The first pixel unit includes three anti-peeping sub-pixels, one of which is located on one side of the display sub-pixel in the row direction, and the other two of which are located on the other side of the display sub-pixel in the column direction.

3. The display panel according to claim 2.

5. The first pixel unit includes two of the red anti-peeping subpixels, one of the green anti-peeping subpixels, and one of the blue anti-peeping subpixels, and the two red anti-peeping subpixels are arranged on both sides of the red display subpixel in the column direction.

3. The display panel according to claim 2.

6. The display panel further comprises a first anode layer, a pixel defining layer, a second anode layer, and a cathode layer, wherein the first anode layer, the pixel defining layer, the second anode layer, the light-emitting layer, the cathode layer, and the light-shielding layer are sequentially formed on the base substrate, the first anode layer including a plurality of spaced-apart first anodes, the pixel defining layer including a plurality of via holes, the second anode layer including a plurality of second anodes, the display sub-pixels at least partially disposed within the via holes and connected to the first anodes, and the anti-spying sub-pixels disposed between adjacent via holes and connected to the second anodes.

3. The display panel according to claim 2.

7. the light-emitting layer further includes a second pixel unit, the second pixel unit including a red display sub-pixel, a green display sub-pixel, and a blue display sub-pixel; The light-emitting layer includes a plurality of anti-peeping areas, and the text or graphic structure formed by the arrangement of the first pixel units is different in different anti-peeping areas.

7. The display panel according to claim 6.

8. In each of the anti-peeping regions, the second anode corresponding to the red anti-peeping sub-pixel is connected, the second anode corresponding to the green anti-peeping sub-pixel is connected, and the second anode corresponding to the blue anti-peeping sub-pixel is connected.

8. The display panel according to claim 7.

9. The display panel further includes a color resist layer, the color resist layer being formed on a side of the light-emitting layer away from the base substrate, the color resist layer including a plurality of color resists, and the orthogonal projections of the display sub-pixels on the color resist layer are positioned one-to-one within the color resists, the light-shielding layer further includes a black matrix, the black matrix being disposed around the color resists, and the black matrix and the light-shielding unit being provided in the same layer.

2. The display panel according to claim 1.

10. The light-blocking unit includes a first electrode, a color-changing structure layer, and a second electrode, which are formed in this order.

2. The display panel according to claim 1.

11. A display device including a display panel and a main board, the main board is connected to the display panel; the display panel includes a base substrate, a light-emitting layer, and a light-shielding layer; the light-emitting layer is formed on one side of the base substrate, and includes a first pixel unit, the first pixel unit including a plurality of display sub-pixels of different colors and a plurality of anti-peeping sub-pixels of different colors, the anti-peeping sub-pixels being disposed on at least one side of each of the display sub-pixels in the first pixel unit; The light-shielding layer is formed on a side of the light-emitting layer away from the base substrate and includes a light-shielding unit, and a positive projection of the anti-peeping sub-pixel on the light-shielding layer is disposed within the light-shielding unit. A display device characterized by:

12. the plurality of different color display sub-pixels include red, green, and blue display sub-pixels arranged in a row direction, and the plurality of different color anti-peeping sub-pixels include red, green, and blue anti-peeping sub-pixels arranged in a row direction, the red anti-peeping sub-pixels being arranged on at least one side of the red display sub-pixels in the column direction, the green anti-peeping sub-pixels being arranged on one side of the green display sub-pixels in the column direction, and the blue anti-peeping sub-pixels being arranged on one side of the blue display sub-pixels in the column direction; or the red anti-peeping subpixel is disposed on at least one side of the red display subpixel in the column direction, the green anti-peeping subpixel is disposed on one side of the blue display subpixel in the column direction, the blue anti-peeping subpixel is disposed on one side of the green display subpixel in the column direction, and the orthogonal projection of the blue anti-peeping subpixel on the base substrate is larger than the orthogonal projection of the green anti-peeping subpixel on the base substrate, and the orthogonal projection of the blue anti-peeping subpixel on the base substrate is larger than the orthogonal projection of the green display subpixel on the base substrate.

12. The display device according to claim 11.

13. The first pixel unit includes three anti-peeping sub-pixels, one of which is disposed in the center of the row direction and is located on one side of the display sub-pixel in the column direction, and the other two of which are disposed on the other side of the display sub-pixel in the column direction.

13. The display device according to claim 12.

14. The first pixel unit includes three anti-peeping sub-pixels, one of which is located on one side of the display sub-pixel in the row direction, and the other two of which are located on the other side of the display sub-pixel in the column direction.

13. The display device according to claim 12.

15. The first pixel unit includes two of the red anti-peeping subpixels, one of the green anti-peeping subpixels, and one of the blue anti-peeping subpixels, and the two red anti-peeping subpixels are arranged on both sides of the red display subpixel in the column direction.

13. The display device according to claim 12.

16. The display panel further comprises a first anode layer, a pixel defining layer, a second anode layer, and a cathode layer, wherein the first anode layer, the pixel defining layer, the second anode layer, the light-emitting layer, the cathode layer, and the light-shielding layer are sequentially formed on the base substrate, the first anode layer including a plurality of spaced-apart first anodes, the pixel defining layer including a plurality of via holes, the second anode layer including a plurality of second anodes, the display sub-pixels at least partially disposed within the via holes and connected to the first anodes, and the anti-spying sub-pixels disposed between adjacent via holes and connected to the second anodes.

13. The display device according to claim 12.

17. the light-emitting layer further includes a second pixel unit, the second pixel unit including a red display sub-pixel, a green display sub-pixel, and a blue display sub-pixel; The light-emitting layer includes a plurality of anti-peeping areas, and the text or graphic structure formed by the arrangement of the first pixel units is different in different anti-peeping areas.

17. The display device according to claim 16.

18. In each of the anti-peeping regions, the second anode corresponding to the red anti-peeping sub-pixel is connected, the second anode corresponding to the green anti-peeping sub-pixel is connected, and the second anode corresponding to the blue anti-peeping sub-pixel is connected.

18. The display device according to claim 17.

19. The display panel further includes a color resist layer, the color resist layer being formed on a side of the light-emitting layer away from the base substrate, the color resist layer including a plurality of color resists, and the orthogonal projections of the display sub-pixels on the color resist layer are positioned one-to-one within the color resists, the light-shielding layer further includes a black matrix, the black matrix being disposed around the color resists, and the black matrix and the light-shielding unit being provided in the same layer.

12. The display device according to claim 11.

20. The light-blocking unit includes a first electrode, a color-changing structure layer, and a second electrode, which are formed in this order.

12. The display device according to claim 11.

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