Display panel and display apparatus

Abstract

A display panel and a display apparatus comprising same. The display panel comprises a light-shielding layer (22), wherein the light-shielding layer (22) is disposed on the side of a light-emitting layer (16) that is away from a driving backplane (10), the light-shielding layer (22) is provided with light-exiting openings (2202), and a light-transmitting opening (2203) is disposed between two adjacent light-exiting openings (2202). The light-shielding area of the light-shielding layer (22) is reduced, so that the absorption of ambient light passing through a polarizer (23) is reduced. In addition to being emitted through the light-exiting openings (2202), reflected light of the ambient light may also be emitted through the light-transmitting openings (2203), so that the absorption of the ambient light by the light-shielding layer (22) is reduced, and the relative content of light of two colors that is less filtered in the reflected light of the ambient light is increased, thereby enabling the display panel to achieve a peep-proof effect while reducing or avoiding hue shifting in the display panel.

Description

Display panel and display device Technical Field

[0001] This invention relates to the field of display technology, and more specifically, to a display panel and a display device. Background Technology

[0002] To reduce ambient light reflection and improve the dark-state all-black effect, a polarizer is placed on the side of the light-emitting layer away from the driving backplate. This polarizer filters out more of one color of ambient light, while filtering out less of the other two colors.

[0003] To achieve privacy protection, a light-blocking layer is introduced in the non-pixel area to absorb light and reduce brightness from the side viewing angle. The three colors of ambient light are absorbed indiscriminately by the light-blocking layer. The relative content of the two colors that were originally filtered less decreases, while the relative content of the one color that was filtered more increases, causing the hue of the display panel to deviate.

[0004] It should be noted that the information in the background section above is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a display panel and display device.

[0006] According to one aspect of the present invention, a display panel is provided, the display panel including a driving backplate, a pixel defining layer, a light-emitting layer, and a light-shielding layer. The pixel defining layer is disposed on one side of the driving backplate and includes a plurality of pixel defining portions, with pixel openings formed between the sides of the pixel defining portions that are close to each other. The light-emitting layer includes at least three different colored light-emitting devices, each light-emitting device being disposed in a pixel opening. The light-shielding layer is disposed on the side of the light-emitting layer away from the driving backplate and has light-emitting openings. The orthographic projection of the pixel openings on the driving backplate is located within the orthographic projection of the light-emitting openings on the driving backplate, and a light-transmitting opening is provided between two adjacent light-emitting openings.

[0007] In one embodiment of the present invention, the light-shielding layer includes a plurality of light-shielding portions, the light-shielding portions forming a light-emitting opening, and a light-transmitting opening being formed between two adjacent light-shielding portions.

[0008] In one embodiment of the present invention, the light-shielding layer includes at least two light-shielding layers, wherein the orthographic projections of the light-emitting openings on each light-shielding layer onto the drive back plate coincide with each other, and the orthographic projections of the light-transmitting openings on each light-shielding layer onto the drive back plate coincide with each other.

[0009] In one embodiment of the present invention, at least two light-shielding layers include a first light-shielding layer and a second light-shielding layer. The first light-shielding layer is provided with a first light-emitting opening and a first light-transmitting opening. The second light-shielding layer is provided with a second light-emitting opening and a second light-transmitting opening. The orthographic projection of the second light-emitting opening on the drive back plate coincides with the orthographic projection of the first light-emitting opening on the drive back plate. The orthographic projection of the second light-transmitting opening on the drive back plate coincides with the orthographic projection of the first light-transmitting opening on the drive back plate.

[0010] In one embodiment of the present invention, the display panel further includes a touch protection layer, a first cover layer and a second cover layer. The touch protection layer is disposed between the light-emitting layer and the first light-shielding layer, the first cover layer is disposed between the first light-shielding layer and the second light-shielding layer, and the second cover layer is disposed on the side of the second light-shielding layer away from the driving backplate.

[0011] In one embodiment of the present invention, a third refractive unit is provided on the side of the touch protection layer away from the driving back plate. The third refractive unit is located inside the first light-transmitting opening. The refractive index of the first cover layer is greater than the refractive index of the third refractive unit. The angle between the side of the third refractive unit and the side of the first cover layer away from the driving back plate is less than 90 degrees.

[0012] In one embodiment of the present invention, a fourth refractive unit is provided on the side of the first cover layer away from the drive back plate. The fourth refractive unit is located inside the second light-transmitting opening. The refractive index of the second cover layer is less than the refractive index of the fourth refractive unit. The angle between the side of the fourth refractive unit and the side of the second cover layer away from the drive back plate is less than 90 degrees.

[0013] In one embodiment of the present invention, the orthographic projection of the fourth refractive unit on the drive back plate overlaps with the orthographic projection of the third refractive unit on the drive back plate.

[0014] In one embodiment of the present invention, the display panel further includes a touch protection layer and a first cover layer. The touch protection layer is disposed on the side of the light-emitting layer away from the driving back plate. The first cover layer is disposed between the light-shielding layer and the touch protection layer. A first refractive unit is provided on the side of the touch protection layer away from the driving back plate. The refractive index of the first refractive unit is less than that of the first cover layer. The angle between the side of the first refractive unit and the side of the first cover layer away from the driving back plate is less than 90 degrees. A first dimming opening is formed between two adjacent first refractive units. The orthographic projection of the first dimming opening on the driving back plate overlaps with the orthographic projection of the light-emitting opening on the driving back plate.

[0015] In one embodiment of the present invention, the first refractive unit includes two sub-first refractive units, and a third dimming opening is formed between two adjacent sub-first refractive units. The orthographic projection of the third dimming opening on the drive back plate overlaps with the orthographic projection of the light-transmitting opening on the drive back plate.

[0016] In one embodiment of the present invention, a light-shielding layer is disposed on the side of the first cover layer away from the driving back plate, and a third refractive unit is disposed on the side of the touch protection layer away from the driving back plate. The third refractive unit is disposed between two adjacent sub-first refractive units. The refractive index of the first cover layer is greater than the refractive index of the third refractive unit, and the angle between the side of the third refractive unit and the side of the first cover layer away from the driving back plate is less than 90 degrees.

[0017] In one embodiment of the present invention, the display panel further includes a first cover layer and a second cover layer. The first cover layer is disposed on the side of the light-shielding layer away from the driving back plate, and the second cover layer is disposed on the side of the first cover layer away from the driving back plate. A second refractive unit is disposed on the side of the first cover layer away from the driving back plate. The refractive index of the second refractive unit is less than that of the second cover layer. The angle between the side of the second refractive unit and the side of the first cover layer away from the driving back plate is less than 90 degrees. A second dimming opening is formed between two adjacent second refractive units. The orthographic projection of the second dimming opening on the driving back plate overlaps with the orthographic projection of the light-emitting opening on the driving back plate.

[0018] In one embodiment of the present invention, the second refractive unit includes two sub-second refractive units, and a fourth dimming opening is formed between two adjacent sub-second refractive units. The orthographic projection of the fourth dimming opening on the drive back plate overlaps with the orthographic projection of the light-transmitting opening on the drive back plate.

[0019] In one embodiment of the present invention, a light-shielding layer is disposed on the side of the first cover layer near the drive back plate, and a fourth refractive unit is disposed on the side of the first cover layer away from the drive back plate. The fourth refractive unit is disposed between two adjacent sub-second refractive units. The refractive index of the second cover layer is greater than the refractive index of the fourth refractive unit, and the angle between the side of the fourth refractive unit and the side of the second cover layer away from the drive back plate is less than 90 degrees.

[0020] In one embodiment of the present invention, the distance between the edge of the third refractive unit and the edge of the first light-transmitting opening is greater than or equal to 3 μm, and the distance between the edge of the fourth refractive unit and the edge of the second light-transmitting opening is greater than or equal to 3 μm.

[0021] In one embodiment of the present invention, the angle between the side of the third refractive unit and the side of the third refractive unit near the drive back plate is 45 degrees to 90 degrees, and the angle between the side of the fourth refractive unit and the side of the fourth refractive unit near the drive back plate is 45 degrees to 90 degrees.

[0022] In one embodiment of the present invention, the third refractive unit is made of the same material as the touch protection layer, and the fourth refractive unit is made of the same material as the first cover layer.

[0023] In one embodiment of the present invention, the refractive index of the touch protective layer is 1.45-1.5, the refractive index of the first cover layer is 1.65-1.75, and the refractive index of the second cover layer is 1.45-1.5.

[0024] In one embodiment of the present invention, the display panel further includes an encapsulation layer and a first touch control layer. The encapsulation layer is disposed on the side of the light-emitting layer away from the driving backplate. The first touch control layer is disposed between the encapsulation layer and the touch protection layer. The first touch control layer includes a plurality of first touch units, which are spaced apart. The orthographic projection of the first touch unit on the driving backplate is located within the orthographic projection of the light-transmitting opening on the driving backplate.

[0025] In one embodiment of the present invention, the plurality of light-emitting devices of different colors includes a first light-emitting device, a second light-emitting device, and a third light-emitting device, wherein the first light-emitting device is red, the second light-emitting device is green, and the third light-emitting device is blue.

[0026] In one embodiment of the present invention, the light-emitting layer includes a plurality of pixel electrodes, a plurality of light-emitting units of different colors, and a common electrode. The plurality of pixel electrodes are respectively disposed in different pixel openings; the plurality of light-emitting units of different colors are respectively disposed on the side of each pixel electrode away from the driving backplate; and the common electrode is disposed on the side of the plurality of light-emitting units away from the driving backplate.

[0027] In one embodiment of the present invention, the display panel further includes a polarizer disposed on the side of the second cover layer away from the driving backplate, wherein the polarizer filters more light of one color than light of the other two colors.

[0028] According to another aspect of the present invention, a display device is provided, comprising the display panel provided in one aspect of the present invention.

[0029] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0031] Figure 1 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention when only a polarizer is provided on the light-emitting side of the light-emitting layer.

[0032] Figure 2 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention when only a polarizer and a light-shielding layer are provided on the light-emitting side of the light-emitting layer.

[0033] Figure 3 is a planar schematic diagram of the light-shielding layer involved in the embodiment of the present invention when the light-shielding layer only has a light-emitting opening.

[0034] Figure 4 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention when the light-shielding layer has light-emitting openings and light-transmitting openings.

[0035] Figure 5 is a planar schematic diagram of the light-shielding layer involved in the embodiment of the present invention when there is a light-transmitting opening between two adjacent light-emitting openings.

[0036] Figure 6 is a planar schematic diagram of the light-shielding layer in this embodiment of the invention, where the light-shielding layer includes multiple light-shielding parts, the light-shielding parts form a light-emitting opening, and a light-transmitting opening is formed between two adjacent light-shielding parts.

[0037] Figure 7 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention when the light-shielding layer includes a first light-shielding layer, and the first light-shielding layer is provided with a first light-emitting opening and a first light-transmitting opening.

[0038] Figure 8 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention, wherein the light-shielding layer includes a first light-shielding layer and a second light-shielding layer, the first light-shielding layer is provided with a first light-emitting opening and a first light-transmitting opening, and the second light-shielding layer is provided with a second light-emitting opening and a second light-transmitting opening.

[0039] Figure 9 is a schematic diagram comparing the first and second light attenuation simulation curves involved in the embodiments of the present invention.

[0040] Figure 10 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention, in which a first refractive unit is provided on the side of the touch protection layer away from the driving back plate, and a first dimming opening is formed between two adjacent first refractive units.

[0041] Figure 11 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention when the first refractive unit includes two sub-first refractive units and a third dimming opening is formed between two adjacent sub-first refractive units.

[0042] Figure 12 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention, in which a second refractive unit is disposed on the side of the first cover layer away from the driving back plate, and a second dimming opening is formed between two adjacent second refractive units.

[0043] Figure 13 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention when the second refractive unit includes two sub-second refractive units and a fourth dimming opening is formed between two adjacent sub-second refractive units.

[0044] Figure 14 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention when a third refractive unit is provided between two adjacent sub-first refractive units.

[0045] Figure 15 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention when a fourth refractive unit is provided between two adjacent sub-second refractive units.

[0046] Figure 16 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention when a third refractive unit is provided inside the first light-transmitting opening.

[0047] Figure 17 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention when a fourth refractive unit is provided inside the second light-transmitting opening.

[0048] Figure 18 is a cross-sectional schematic diagram of the display panel involved in the embodiment of the present invention, in which a third refractive unit is disposed in the first light-transmitting opening, a fourth refractive unit is disposed in the second light-transmitting opening, and the orthogonal projection of the fourth refractive unit on the driving back plate overlaps with the orthogonal projection of the third refractive unit on the driving back plate.

[0049] Figure 19 is a schematic plan view of the relative positional relationship between the fourth refractive unit and the light-shielding part in an embodiment of the present invention.

[0050] Figure 20 is a partial three-dimensional structural diagram showing the relative positional relationship between the fourth refractive unit and the light-shielding part in an embodiment of the present invention.

[0051] Figure 21 is a comparative diagram of the first light attenuation simulation curve, the second light attenuation simulation curve, and the third light attenuation simulation curve involved in the embodiments of the present invention.

[0052] Explanation of reference numerals in the attached figures: 10-Drive backplane, 11-Substrate, 12-Buffer layer; 13-Drive circuit layer, 131-Active layer, 1321-First gate insulating layer, 1322-Second gate insulating layer, 1331-First gate, 1332-Second gate, 134-Interlayer dielectric layer, 135-First source, 136-Drain, 137-Protective layer, 138-Second source; 139-Planing layer group, 1391-First planarization layer, 1392-Second planarization layer; 15-Pixel defining layer, 151-Pixel opening, 152-Pixel defining part; 16-Light emitting layer, 160-Light emitting device, 161-Pixel electrode, 162-Light emitting unit, 163-Common electrode, 1601-First light emitting device, 1602-Second light emitting device, 1603-Third light emitting device; 17-Encapsulation layer, 171-First inorganic encapsulation layer, 172-Organic encapsulation layer, 173-Second inorganic encapsulation layer; 18-Touch control layer, 181-First touch control layer, 1811-First touch unit, 182-Second touch control layer, 1821-Second touch unit, 183-Touch blocking layer, 184-Touch isolation layer; 19-Touch protection layer, 191-First refractive unit, 1911-Sub-first refractive unit, 1912-Third dimming opening, 192-First dimming opening, 193-Third refractive unit; 20-First cover layer, 201-Second refractive unit, 2011-Sub-second refractive unit, 2012-Fourth dimming opening, 202-Second dimming opening, 203-Fourth refractive unit; 21-Second cover layer; 22-Light-shielding layer; 2201-Light-shielding part; 2202-Light-emitting opening; 2203-Light-transmitting opening; 2204-First photon-emitting port; 2205-Second photon-emitting port; 2206-Third photon-emitting port; 2207-First sub-light-shielding part; 2208-Second sub-light-shielding part; 2209-Third sub-light-shielding part; 221-First light-shielding layer; 2211-First light-emitting opening; 2212-First light-transmitting opening; 222-Second light-shielding layer; 2221-Second light-emitting opening; 2222-Second light-transmitting opening; 23-Polarizer; 24-Cover plate. Detailed Implementation

[0053] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted. Furthermore, the drawings are merely illustrative of the invention and are not necessarily drawn to scale.

[0054] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0055] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0056] Flexible Multi-Layer On Cell (FMLOC) design is currently mainstream in the OLED touch display field. FMLOC design refers to fabricating a metal electrode layer on the encapsulation layer 17 of the display substrate. The surface of the metal electrode layer significantly reflects ambient light. As shown in Figure 1, to improve the contrast of the display panel, reduce reflected light, and improve the seamless black effect in dark states, a polarizer 23 is typically placed on the light-emitting side of the light-emitting layer 16 so that the display panel appears black when it is not lit. The polarizer 23 uses a filter layer to reduce ambient light reflection, achieving anti-glare. The color shift coordinates of the display panel in the figure are: a* = -0.84, b* = -2.55, and the display panel basically presents a seamless black effect in dark states.

[0057] As shown in Figures 2 and 3, to achieve privacy protection and reduce brightness at side viewing angles, a light-blocking layer 22 can be introduced in the non-pixel area to absorb light. The light-blocking layer 22 has light-emitting openings 2202. The emitted light from each light-emitting device 160 in the light-emitting layer 16 exits through the corresponding light-emitting opening 2202. Light emitted at narrow viewing angles exits through the light-emitting opening 2202, while light emitted at wide viewing angles is absorbed by the portion outside the light-emitting opening 2202, thus achieving privacy protection. In Figure 1, the reflectivity R of the display panel without the light-blocking layer 22 is 0.85, while in Figure 2, the reflectivity R of the display panel with the light-blocking layer 22 is 0.78. The light-blocking layer 22 reduces the reflectivity of the display panel.

[0058] In ambient light, a certain color of light is filtered more by the filter layer in polarizer 23, while the other two colors are filtered less. However, the three colors of light in ambient light are absorbed indiscriminately by the light-shielding layer 22. The relative content of the two colors that were originally filtered less decreases, while the relative content of the one color that was filtered more increases. This leads to a relative increase in the amount of the more filtered light emitted in the reflected light, causing the hue of the display panel to deviate from the color of the more filtered light.

[0059] The phase difference of polarizer 23 is 137.5nm, which is one-quarter of the wavelength of green light (550nm), to which the human eye is most sensitive. Therefore, green light in ambient light is intercepted most thoroughly, with a significant amount of green light filtered by polarizer 23. Red and blue light, on the other hand, are filtered less, resulting in varying degrees of light leakage. Since all three colors of light in the ambient light are absorbed indiscriminately, the relative amount of red and blue light, which was initially filtered less, decreases in the reflected light, while the relative amount of green light increases. This results in the color shift coordinates of the display panel in the diagram being a* = -2.45 and b* = -2.36, causing the hue of the display panel to appear greenish.

[0060] Of course, when the polarizer 23 filters more blue light, it may cause the hue of the display panel to be more bluish. When the polarizer 23 filters more red light, it may cause the hue of the display panel to be more reddish. This will not be elaborated on here.

[0061] Based on this, the present invention provides a display panel. As shown in Figures 4 to 20, the display panel includes a driving backplate 10, a pixel defining layer 15, a light-emitting layer 16, and a light-shielding layer 22. The pixel defining layer 15 is disposed on one side of the driving backplate 10 and includes a plurality of pixel defining portions 152. A pixel opening 151 is formed between the sides of the pixel defining portions 152 that are close to each other. The light-emitting layer 16 includes at least three different colored light-emitting devices 160, and each light-emitting device 160 is disposed in a pixel opening 151. The light-shielding layer 22 is disposed on the side of the light-emitting layer 16 away from the driving backplate 10. A light-emitting opening 2202 is provided on the light-shielding layer 22. The orthographic projection of the pixel opening 151 on the driving backplate 10 is located within the orthographic projection of the light-emitting opening 2202 on the driving backplate 10. A light-transmitting opening 2203 is provided between two adjacent light-emitting openings 2202.

[0062] The display panel includes a light-shielding layer 22, which is located on the side of the light-emitting layer 16 away from the driving backplate 10. The light-shielding layer 22 has light-emitting openings 2202. The orthographic projection of the pixel opening 151 onto the driving backplate 10 lies within the orthographic projection of the light-emitting opening 2202 onto the driving backplate 10. A light-transmitting opening 2203 is provided between two adjacent light-emitting openings 2202. The reduced light-shielding area of ​​the light-shielding layer 22 decreases the absorption of ambient light passing through the polarizer 23. The reflected ambient light can be emitted through both the light-emitting opening 2202 and the light-transmitting opening 2203, further reducing the absorption of ambient light by the light-shielding layer 22 and increasing the relative content of the two less filtered colors in the reflected ambient light. This allows the display panel to achieve a privacy protection effect while reducing or preventing hue deviation in the display panel.

[0063] The display panel involved in the embodiments of the present invention will be described in detail below with reference to specific examples.

[0064] As shown in Figure 4, a display panel may generally include a substrate 11 and a driving circuit layer 13. The driving circuit layer 13 is disposed on one side of the substrate 11. The display panel may also include a buffer layer 12, which is disposed between the substrate 11 and the driving circuit layer 13.

[0065] The substrate 11 can be an inorganic material or an organic material. For example, in one embodiment of the present invention, the substrate 11 can be made of glass materials such as soda-lime glass, quartz glass, or sapphire glass, or it can be made of metal materials such as stainless steel, aluminum, or nickel.

[0066] In another embodiment of the present invention, the substrate 11 may also be a flexible substrate 11, for example, the material of the substrate 11 may be polyimide (PI). The substrate 11 may also be a composite of multiple materials. For example, in one embodiment of the present invention, the substrate 11 may include a bottom film, a pressure-sensitive adhesive layer, a first polyimide layer and a second polyimide layer stacked sequentially.

[0067] The driving circuit layer 13 is provided with a driving circuit for driving the light-emitting device 160. The driving circuit is located in the display area, and any driving circuit may include a transistor, which may be a thin-film transistor (TFT). The TFT may be selected from top-gate TFTs, bottom-gate TFTs, or dual-gate TFTs. Taking a top-gate TFT as an example, the driving circuit layer 13 may include a first active layer 131, a first gate insulating layer 1321, a first gate 1331 layer, a second gate insulating layer 1322, a second gate 1332 layer, and a first source / drain metal layer, sequentially disposed along a direction away from the substrate 11, wherein:

[0068] The first active layer 131 is disposed on one side of the substrate 11. The material of the first active layer 131 can be amorphous silicon semiconductor material, low-temperature polycrystalline silicon semiconductor material, metal oxide semiconductor material, organic semiconductor material, or other types of semiconductor material. Therefore, the thin film transistor can be an N-type thin film transistor or a P-type thin film transistor. The first active layer 131 may include a channel region and two doped regions of different doping types located on both sides of the channel region.

[0069] The first gate insulating layer 1321 is disposed on the side of the active layer 131 away from the substrate 11. The first gate insulating layer 1321 can cover the active layer 131 and the substrate 11. The first gate 1331 layer can include the first gate 1331. The first gate 1331 is disposed on the side of the first gate insulating layer 1321 away from the substrate 11 and is directly opposite to the active layer 131. That is, the projection of the first gate 1331 on the substrate 11 is located within the projection range of the active layer 131 on the substrate 11. For example, the projection of the first gate 1331 on the substrate 11 coincides with the projection of the channel region of the active layer 131 on the substrate 11. The second gate insulating layer 1322 is disposed on the side of the first gate 1331 away from the substrate 11. The second gate insulating layer 1322 can cover the first gate 1331 and the first gate insulating layer 1321. The second gate 1332 layer can include the second gate 1332, which is disposed on the side of the second gate insulating layer 1322 away from the substrate 11 and is directly opposite the active layer 131. The materials of the first gate insulating layer 1321 and the second gate insulating layer 1322 are both insulating materials such as silicon oxide.

[0070] The thin-film transistor may further include an interlayer dielectric layer 134, which is disposed on the side of the second gate 1332 away from the substrate 11, and may cover the second gate 1332 and the second gate insulating layer 1322. A first source / drain metal layer is disposed on the surface of the interlayer dielectric layer 134 away from the substrate 11, and may include a first source 135 and a drain 136, which are connected to the first active layer 131. For example, the first source 135 and the drain 136 are respectively connected to two doped regions of the corresponding first active layer 131 through vias. A protective layer 137 may also be provided on the side of the first source 135 away from the substrate 11, and the protective layer 137 covers the first source 135 and the drain 136. The driving circuit layer 13 may also include a planarization layer group 139, which includes a first planarization layer 1391. The first planarization layer 1391 is disposed on the side of the protective layer 137 away from the substrate 11, and the first planarization layer 1391 covers the protective layer 137.

[0071] The driving circuit layer 13 may further include a second source / drain metal layer, which is disposed on the side of the first planarization layer 1391 away from the substrate 11. The second source / drain metal layer may include a second source 138, which is connected to the first source 135. The planarization layer group 139 may further include a second planarization layer 1392, which is disposed on the side of the second source 138 away from the substrate 11. The second planarization layer 1392 covers the second source 138 and the first planarization layer 1391.

[0072] The display panel may further include a pixel defining layer 15 and a light-emitting layer 16. The pixel defining layer 15 is disposed on the side of the first planarization layer 1391 or the second planarization layer 1392 away from the array substrate. The pixel defining layer 15 includes a plurality of pixel defining portions 152, and a pixel opening 151 is formed between two adjacent pixel defining portions 152. The light-emitting layer 16 may include a plurality of light-emitting devices 160, which are respectively disposed in different pixel openings 151. Each light-emitting device 160 may include a pixel electrode 161, a light-emitting unit 162, and a common electrode 163. The pixel electrode 161 is located on the surface of the first planarization layer 1391 or the second planarization layer 1392 away from the substrate 11. The light-emitting unit 162 is disposed on the surface of the pixel electrode 161 away from the substrate 11, and the common electrode 163 is disposed on the surface of the light-emitting unit 162 away from the substrate 11. The light-emitting unit 162 can be driven to emit light through the pixel electrode 161 and the common electrode 163 to display an image.

[0073] Pixel electrode 161 is connected to either the first source 135 or the second source 138. A pixel defining layer 15 is provided on the side of pixel electrode 161 away from the substrate 11. When the thin-film transistor includes only the first source 135, pixel electrode 161 is connected to the first source 135, and pixel defining layer 15 covers pixel electrode 161 and the first planarization layer 1391. When the thin-film transistor also includes the second source 138, pixel electrode 161 is connected to the second source 138, and pixel defining layer 15 covers pixel electrode 161 and the second planarization layer 1392.

[0074] The common electrode 163 can serve as the cathode, and the pixel electrode 161 can serve as the anode. Light emission from the light-emitting unit 162 can be driven by applying a signal to the pixel electrode 161; the specific light emission principle will not be detailed here. The light-emitting unit 162 may contain an electroluminescent organic light-emitting material and can be formed using processes such as vapor deposition. For example, the light-emitting unit 162 may include a hole injection layer, a hole transport layer, a light generation layer, an electron transport layer, and an electron injection layer sequentially stacked on the pixel electrode 161. It should be noted that the light-emitting device 160 may include a first light-emitting device 1601, a second light-emitting device 1602, and a third light-emitting device 1603, depending on the emitted color. The first light-emitting device 1601 is red, the second light-emitting device 1602 is green, and the third light-emitting device 1603 is blue.

[0075] Furthermore, the display panel of the present invention may also include an encapsulation layer 17, which is disposed on the side of the light-emitting layer 16 away from the substrate 11, thereby covering the light-emitting layer 16 and preventing water and oxygen corrosion. The encapsulation layer 17 may be a single-layer or multi-layer structure, and the material of the encapsulation layer 17 may include organic or inorganic materials, without special limitation. In this embodiment, the encapsulation layer 17 may include a first inorganic encapsulation layer 171, an organic encapsulation layer 172, and a second inorganic encapsulation layer 173. The first inorganic encapsulation layer 171 is disposed on the side of the light-emitting layer 16 away from the substrate 11, the organic encapsulation layer 172 is disposed on the side of the first inorganic encapsulation layer 171 away from the substrate 11, and the second inorganic encapsulation layer 173 is disposed on the side of the organic encapsulation layer 172 away from the substrate 11.

[0076] The display panel also includes a touch control layer 18, which can be a mutual capacitive touch control layer. The touch control layer 18 includes a first touch control layer 181 and a second touch control layer 182. The first touch control layer 181 is a metal mesh layer (MM), and the second touch control layer 182 is a bridge metal layer (BM). The metal mesh is located in the display area and can be divided into touch-driving (Tx) metal mesh and touch-sensing (Rx) metal mesh according to the horizontal and vertical directions. One of the touch-sensing (Rx) metal mesh and the touch-driving (Tx) metal mesh is interconnected, while the other is connected through the bridge metal layer.

[0077] The first tactile control layer 181 is disposed on the side of the substrate 11 away from the encapsulation layer 17, and the second tactile control layer 182 is disposed between the first tactile control layer 181 and the encapsulation layer 17. The tactile control layer 18 may further include a touch blocking layer 183 and a touch isolating layer 184, with the touch blocking layer 183 disposed between the encapsulation layer 17 and the second tactile control layer 182, and the touch isolating layer 184 disposed between the first tactile control layer 181 and the second tactile control layer 182.

[0078] The first tactile control layer 181 may include a plurality of first touch units 1811, which are spaced apart. The orthographic projection of the first touch unit 1811 on the substrate 11 is located between the orthographic projections of two adjacent light-emitting devices 160 on the substrate 11. The second tactile control layer 182 may include a plurality of second touch units 1821, whose orthographic projections on the substrate 11 overlap with the orthographic projections of the first touch units 1811 on the substrate 11.

[0079] As shown in Figure 4, the display panel may further include a light-shielding layer 22. The light-shielding layer 22 is located on the side of the common electrode 163 away from the driving backplate 10. The light-shielding layer 22 has a light-emitting opening 2202. The orthographic projection of the pixel opening 151 on the driving backplate 10 is located within the orthographic projection of the light-emitting opening 2202 on the driving backplate 10. The emitted light from each light-emitting device 160 of the light-emitting layer 16 is emitted through the corresponding light-emitting opening 2202. The emitted light with a small viewing angle is emitted through the light-emitting opening 2202, while the emitted light with a large viewing angle is absorbed by the portion other than the light-emitting opening 2202, thereby achieving the privacy protection function.

[0080] As shown in Figure 5, the light-emitting opening 2202 includes a first light-emitting sub-port 2204, a second light-emitting sub-port 2205, and a third light-emitting sub-port 2206. The orthographic projection of the first light-emitting sub-port 2204 on the driving backplate 10 overlaps with the orthographic projection of the first light-emitting device 1601 on the driving backplate 10. The orthographic projection of the second light-emitting sub-port 2205 on the driving backplate 10 overlaps with the orthographic projection of the second light-emitting device 1602 on the driving backplate 10. The orthographic projection of the third light-emitting sub-port 2206 on the driving backplate 10 overlaps with the orthographic projection of the third light-emitting device 1603 on the driving backplate 10.

[0081] A light-transmitting opening 2203 is provided between two adjacent light-emitting openings 2202. The light-shielding area of ​​the light-shielding layer 22 is reduced, which reduces the absorption of ambient light passing through the polarizer 23. The reflected light from the ambient light can be emitted through the light-transmitting opening 2203 in addition to being emitted through the first light-emitting opening 2211. This reduces the absorption of ambient light by the light-shielding layer 22 and increases the relative content of the two colors of light that are less filtered in the reflected light from the ambient light. This allows the display panel to achieve a privacy protection effect while reducing or avoiding hue deviation of the display panel. Multiple first touch units 1811 are arranged at intervals, and the orthographic projection of the first touch unit 1811 on the driving back plate 10 is located within the orthographic projection of the light-transmitting opening 2203 on the driving back plate 10.

[0082] As shown in Figure 6, the light-shielding layer 22 includes multiple light-shielding parts 2201, which form a light-emitting opening 2202. Each light-shielding part 2201 includes a first sub-light-shielding part 2207, a second sub-light-shielding part 2208, and a third sub-light-shielding part 2209. The first sub-light-shielding part 2207 forms a first light-emitting sub-port 2204, the second sub-light-shielding part 2208 forms a second light-emitting sub-port 2205, and the third sub-light-shielding part 2209 forms a third light-emitting sub-port 2206.

[0083] A light-transmitting opening 2203 is formed between two adjacent light-shielding portions 2201, which allows the light-shielding openings to be interconnected, further reducing the light-shielding area of ​​the light-shielding layer 22, thereby further reducing the absorption of ambient light passing through the polarizer 23. The first light-shielding layer 221 includes a plurality of first light-shielding portions 2201, which form a first light-emitting opening 2211, and a first light-transmitting opening 2212 is formed between two adjacent first light-shielding portions 2201. The second light-shielding layer 222 includes a plurality of second light-shielding portions 2201, which form a second light-emitting opening 2221, and a second light-transmitting opening 2222 is formed between two adjacent second light-shielding portions 2201.

[0084] The display panel of the present invention will be further described below with reference to Figures 7 to 21. It should be noted that, compared with Figure 4, Figures 7, 8 and Figures 10 to 18 omit the specific structure of the driving backplate 10 and the encapsulation layer 17, and the second touch control layer 182 and the touch blocking layer 183 are omitted from the touch control layer 18.

[0085] As shown in Figure 7, the light-shielding layer 22 may include a first light-shielding layer 221. The display panel may also include a touch protection layer 19 and a first cover layer 20. The touch protection layer 19 is disposed on the side of the first touch control layer 181 away from the driving backplate 10, the first light-shielding layer 221 is disposed on the side of the touch protection layer 19 away from the driving backplate 10, and the first cover layer 20 is disposed on the side of the first light-shielding layer 221 away from the driving backplate 10. The first light-shielding layer 221 is provided with a first light-emitting opening 2211. The orthographic projection of the pixel opening 151 on the driving backplate 10 is located within the orthographic projection of the first light-emitting opening 2211 on the driving backplate 10. A first light-transmitting opening 2212 is provided between two adjacent first light-emitting openings 2211.

[0086] As shown in Figure 8, to improve the privacy protection effect of the display panel, the light-shielding layer 22 may further include a second light-shielding layer 222, and the display panel may further include a second cover layer 21. The second light-shielding layer 222 is disposed on one side of the first cover layer 20 driving the back plate 10, and the second cover layer 21 is disposed on the side of the second light-shielding layer 222 away from the driving back plate 10. The second light-shielding layer 222 is provided with a second light-emitting opening 2221 and a second light-transmitting opening 2222. The orthographic projection of the second light-emitting opening 2221 on the driving back plate 10 coincides with the orthographic projection of the first light-emitting opening 2211 on the driving back plate 10, and the orthographic projection of the second light-transmitting opening 2222 on the driving back plate 10 coincides with the orthographic projection of the first light-transmitting opening 2212 on the driving back plate 10.

[0087] In other feasible embodiments, to further improve the privacy protection effect, more light-shielding layers 22 can be provided. For example, a third light-shielding layer 22 can be provided on the side of the second light-shielding layer 222 away from the drive back plate 10, and a third light-emitting opening 2202 and a third light-transmitting opening 2203 can be provided on the third light-shielding layer 22. Alternatively, four or more light-shielding layers 22 can be provided, and the arrangement method is the same as that of the first light-shielding layer 221 and the second light-shielding layer 222, which will not be described in detail here.

[0088] It should be noted that the thickness of the first light-shielding layer 221 is 1-2 μm, the width of the first light-shielding portion 2201 is 3-6 μm, and the distance between the edge of the orthographic projection of the first light-shielding portion 2201 on the driving backplate 10 and the edge of the orthographic projection of the pixel definition portion 152 on the driving backplate 10 is 0-2 μm. The thickness of the first cover layer 20 is 3-6 μm, the thickness of the second light-shielding layer 222 is the same as the thickness of the first light-shielding layer 221, and the width and position of the second light-shielding portion 2201 are the same as those of the first light-shielding portion 2201. The thickness of the second cover layer 21 is 3-6 μm.

[0089] As shown in Figure 9, the light attenuation simulation curve of the display panel in Figure 2 is the first light attenuation simulation curve L1, and the light attenuation simulation curve of the display panel in Figure 4 is the second light attenuation simulation curve L2. Comparing the first light attenuation simulation curve L1 and the second light attenuation simulation curve L2, it can be seen that, except for a slight difference in brightness at oblique viewing angles of 25-40 degrees, the trajectories of the light attenuation simulation curves at other angles are basically the same. Therefore, the display panel in Figure 4 can effectively achieve privacy protection while improving the color deviation of the display panel.

[0090] The hue coordinates of the display panel in Figure 2 are: a* = -2.45, b* = -2.36. The hue coordinates of the display panel in Figure 4 are: a* = -0.95, b* = -2.52. The hue coordinates of the display panel in Figure 1 without the light-shielding layer 22 are: a* = -0.84, b* = -2.55. The hue of the display panel in Figure 4 is close to the hue of the display panel in Figure 1 without privacy protection and only with polarizer 23.

[0091] As shown in Figure 10, the display panel also includes a touch protection layer 19 and a first cover layer 20. The touch protection layer 19 is disposed on the side of the light-emitting layer 16 away from the driving back plate 10. The first cover layer 20 is disposed between the light-shielding layer 22 and the touch protection layer 19. A first refractive unit 191 is provided on the side of the touch protection layer 19 away from the driving back plate 10. The refractive index of the first refractive unit 191 is less than the refractive index of the first cover layer 20. The angle between the side of the first refractive unit 191 and the side of the first cover layer 20 away from the driving back plate 10 is less than 90 degrees. A first dimming opening 192 is formed between two adjacent first refractive units 191. The orthographic projection of the first dimming opening 192 on the driving back plate 10 overlaps with the orthographic projection of the light-emitting opening 2202 on the driving back plate 10.

[0092] The first refractive unit 191 can have the same refractive index as the touch protection layer 19, with a refractive index of 1.45-1.5. The refractive index of the first cover layer 20 can be 1.65-1.75. The emitted light first enters the first cover layer 20 and then strikes the side of the first refractive unit 191. When the emitted light strikes the interface between the side of the first refractive unit 191 and the first cover layer 20, total emission occurs at the interface. The emitted light from the emission opening, which is at an oblique angle, is deflected to the direction of the normal angle, thus improving the light emission efficiency of the display panel at the normal angle and reducing the brightness at the side angle.

[0093] As shown in Figure 11, the first refractive unit 191 includes two sub-first refractive units 1911. A third dimming opening 1912 is formed between two adjacent sub-first refractive units 1911. The orthographic projection of the third dimming opening 1912 on the driving backplate 10 overlaps with the orthographic projection of the light-transmitting opening 2203 on the driving backplate 10. The thickness is relatively thin at the third dimming opening 1912. When a photosensitive element is placed at this position, light loss at this position can be reduced, and the light-sensing effect of the photosensitive element can be improved. As shown in the figure, the first refractive unit 191 can also be set as a whole, which can save the manufacturing process of the first refractive unit and save the manufacturing cost of the display panel. It is equivalent to replacing the first light-shielding part 2201 with the first refractive unit 191 based on the figure.

[0094] As shown in Figure 12, the display panel also includes a first cover layer 20 and a second cover layer 21. The first cover layer 20 is disposed on the side of the light-shielding layer 22 away from the driving back plate 10, and the second cover layer 21 is disposed on the side of the first cover layer 20 away from the driving back plate 10. A second refractive unit 201 is provided on the side of the first cover layer 20 away from the driving back plate 10. The refractive index of the second refractive unit 201 is less than the refractive index of the second cover layer 21. The angle between the side of the second refractive unit 201 and the side of the first cover layer 20 away from the driving back plate 10 is less than 90 degrees. A second dimming opening 202 is formed between two adjacent second refractive units 201. The orthographic projection of the second dimming opening 202 on the driving back plate 10 overlaps with the orthographic projection of the light-emitting opening 2202 on the driving back plate 10.

[0095] The refractive index of the second refractive unit 201 can be the same as that of the first cover layer 20. The refractive index of the second refractive unit 201 can be 1.45-1.5, and the refractive index of the second cover layer 21 can be 1.65-1.75. The outgoing light first enters the second cover layer 21 and then is incident on the side of the second refractive unit 201. When the outgoing light is incident on the interface between the side of the second refractive unit 201 and the second cover layer 21, total emission occurs at the interface between the side of the second refractive unit 201 and the second cover layer 21. The outgoing light from the outgoing opening along the oblique viewing angle is deflected to the direction of the normal viewing angle, which improves the light emission efficiency of the display panel at the normal viewing angle and reduces the brightness at the side viewing angle.

[0096] As shown in Figure 13, the second refractive unit 201 includes two sub-second refractive units 2011. A fourth dimming opening 2012 is formed between two adjacent sub-second refractive units 2011. The orthographic projection of the fourth dimming opening 2012 on the driving back plate 10 overlaps with the orthographic projection of the light-transmitting opening 2203 on the driving back plate 10. The thickness is relatively thin at the third dimming opening 1912. When a photosensitive element is placed at this position, light loss at this position can be reduced, and the light-sensing effect of the photosensitive element can be improved. As shown in the figure, the second refractive unit 201 is designed as a whole, which can save on the manufacturing process of the second refractive unit and save on the manufacturing cost of the display panel. It is equivalent to replacing the second light-shielding part 2201 with the second refractive unit 201 based on the figure.

[0097] As shown in Figure 14, based on Figure 11, a third refractive unit 193 is provided on the side of the touch protection layer 19 away from the driving backplate 10. The third refractive unit 193 is located between two adjacent sub-first refractive units 1911. The refractive index of the first cover layer 20 is greater than the refractive index of the third refractive unit 193. The angle between the side of the third refractive unit 193 and the side of the first cover layer 20 away from the driving backplate 10 is less than 90 degrees. When the emitted light with a relatively small emission angle is incident on the interface between the side of the sub-first refractive unit 1911 and the first cover layer 20, total emission occurs at the interface between the side of the sub-first refractive unit 1911 and the first cover layer 20. The emitted light from the emission opening along the oblique viewing angle is deflected to the direction of the normal viewing angle, improving the light emission efficiency of the display panel at the normal viewing angle and reducing the brightness at the side viewing angle. When light rays with a large emission angle strike the interface between the side of the third refractive unit 193 and the first cover layer 20, total internal reflection occurs at the interface. The light rays with a large emission angle are reflected to the side of the second light-shielding part 2201 near the drive back plate 10 and are absorbed by the second light-shielding part 2201, which can reduce the brightness of the oblique viewing angle and play a better role in preventing peeping.

[0098] As shown in Figure 15, based on Figure 13, a fourth refractive unit 203 is provided on the side of the first cover layer 20 away from the driving back plate 10. The fourth refractive unit 203 is located between two adjacent sub-second refractive units 2011. The refractive index of the second cover layer 21 is less than the refractive index of the fourth refractive unit 203, and the angle between the side of the fourth refractive unit 203 and the side of the second cover layer 21 away from the driving back plate 10 is less than 90 degrees. When the emitted light with a relatively small emission angle is incident on the interface between the side of the sub-second refractive unit 2011 and the second cover layer 21, total emission occurs at the interface between the side of the sub-second refractive unit 2011 and the second cover layer 21. The emitted light from the emission opening along the oblique viewing angle is deflected to the direction of the normal viewing angle, thereby improving the light emission efficiency of the display panel at the normal viewing angle and reducing the brightness at the side viewing angle. When light rays with a large emission angle strike the interface between the side of the third refractive unit 193 and the second cover layer 21, total internal reflection occurs at the interface. The light rays with a large emission angle are reflected to the side of the first light-shielding part 2201 and absorbed by the first light-shielding part 2201, which can reduce the brightness of the oblique viewing angle and play a better role in preventing peeping.

[0099] It is understandable that a light-shielding part 2201 needs to be provided in the reflection path of the refraction unit used to reflect outgoing light rays with a large outgoing angle to absorb the light rays that have undergone total internal reflection.

[0100] As shown in Figure 16, a third refractive unit 193 is provided on the side of the touch protection layer 19 away from the driving backplate 10. The third refractive unit 193 is located within the first light-transmitting opening 2212, and the refractive index of the first cover layer 20 is greater than that of the third refractive unit 193. The third refractive unit 193 is disposed between the two first light-shielding portions 2201, and the thickness of the third refractive unit 193 is 1.5-2.5 μm. It can be understood that the cross-sectional shape of the third refractive unit 193 is trapezoidal, that is, the bottom width of the third refractive unit 193 is greater than its top width, the top width of the third refractive unit 193 is 3-6 μm, and the distance d1 between the bottom edge of the third refractive unit 193 and the edges of the two adjacent first light-shielding portions 2201 is greater than or equal to 3 μm.

[0101] As shown in Figures 17, 19, and 20, the fourth refractive unit 203 is disposed between the two second light-shielding portions 2201. The fourth refractive unit 203 is located on the side of the first cover layer 20 away from the drive back plate 10. The fourth refractive unit 203 is located within the second light-transmitting opening 2222. The refractive index of the second cover layer 21 is less than the refractive index of the fourth refractive unit 203. The thickness of the fourth refractive unit 203 is 1.5-2.5 μm. It can be understood that the cross-sectional shape of the fourth refractive unit 203 is trapezoidal, that is, the bottom width of the fourth refractive unit 203 is greater than its top width. The top width of the fourth refractive unit 203 is 3-6 μm, and the distance d2 between the bottom edge of the fourth refractive unit 203 and the edges of the two adjacent second light-shielding portions 2201 is greater than or equal to 3 μm.

[0102] As shown in Figures 18 to 20, a third refractive unit 193 is provided on the side of the touch protection layer 19 away from the driving backplate 10. The third refractive unit 193 is located within the first light-transmitting opening 2212, and the refractive index of the first cover layer 20 is greater than that of the third refractive unit 193. A fourth refractive unit 203 is disposed between the two second light-shielding portions 2201. The fourth refractive unit 203 is provided on the side of the first cover layer 20 away from the driving backplate 10, and the fourth refractive unit 203 is located within the second light-transmitting opening 2222. The refractive index of the second cover layer 21 is less than that of the fourth refractive unit 203. The orthographic projection of the fourth refractive unit 203 on the driving backplate 10 overlaps with the orthographic projection of the third refractive unit 193 on the driving backplate 10.

[0103] It should be noted that the material of the third refractive unit 193 is the same as that of the touch protection layer 19, therefore the third refractive unit 193 and the touch protection layer 19 can be formed simultaneously. Similarly, the material of the fourth refractive unit 203 is the same as that of the first cover layer 20, therefore the fourth refractive unit 203 and the first cover layer 20 can be formed simultaneously, which can save on the manufacturing cost of the display panel. The fourth refractive unit 203 has the same shape, size, and placement as the third refractive unit 193, therefore the touch protection layer 19, the third refractive unit 193, the first cover layer, and the fourth refractive unit 203 can be formed using the same half-tone mask (HTM), which can further reduce the manufacturing cost of the display panel.

[0104] The refractive index of the third refractive unit 193 and the touch protection layer 19 is 1.45-1.5, the refractive index of the fourth refractive unit 203 and the first cover layer 20 is 1.65-1.75, and the refractive index of the second cover layer 21 is 1.45-1.5. As shown in Figure 16, the emitted light from the light-emitting device 160 is emitted at a relatively large emission angle A1. The emitted light with a relatively large emission angle illuminates the interface between the side of the third refractive unit 193 and the first cover layer 20, where total internal reflection occurs. The emitted light with a relatively large emission angle is reflected to the side of the second light-shielding part 2201 near the driving back plate 10 and is absorbed by the second light-shielding part 2201. The emitted light from the light-emitting device 160 is emitted at a smaller emission angle A2. The emitted light with a smaller emission angle illuminates the interface between the side of the fourth refractive unit 203 and the second cover layer 21. Total internal reflection occurs at the interface between the side of the fourth refractive unit 203 and the second cover layer 21. The emitted light with a smaller emission angle is reflected to the side of the first light-shielding part 2201 and absorbed by the first light-shielding part 2201.

[0105] As shown in Figure 21, the light attenuation simulation curve of the display panel in Figure 2 is the first light attenuation simulation curve L1, the light attenuation simulation curve of the display panel in Figure 4 is the second light attenuation simulation curve L2, and the light attenuation simulation curve of the display panel in Figure 18 is the third light attenuation simulation curve L3. The third light attenuation simulation curve L3 is closer to the first light attenuation simulation curve L1 in the 25-40 degree range. Therefore, the display panel in Figure 18 can further reduce the brightness at oblique viewing angles and play a better role in preventing privacy.

[0106] It should be noted that, in the above embodiments, the angle between the side of the first refractive unit 191 and the side of the first refractive unit 191 near the driving back plate 10 is 45 degrees to 90 degrees, the angle between the side of the second refractive unit 201 and the side of the second refractive unit 201 near the driving back plate 10 is 45 degrees to 90 degrees, the angle between the side of the third refractive unit 193 and the side of the third refractive unit 193 near the driving back plate 10 is 45 degrees to 90 degrees, and the angle between the side of the fourth refractive unit 203 and the side of the fourth refractive unit 203 near the driving back plate 10 is 45 degrees to 90 degrees.

[0107] To further increase the amount of reflection of the light emitted from the first refractive unit 191, the second refractive unit 201, the third refractive unit 193, and the fourth refractive unit 203, and improve the reflection effect, the angle between the side of the first refractive unit 191 and the side of the touch protection layer 19 away from the driving back plate 10 can be 65-85 degrees; the angle between the side of the second refractive unit 201 and the side of the touch protection layer 19 away from the driving back plate 10 can be 65-85 degrees; the angle between the side of the third refractive unit 193 and the side of the touch protection layer 19 away from the driving back plate 10 can be 65-85 degrees; and the angle between the side of the fourth refractive unit 203 and the side of the touch protection layer 19 away from the driving back plate 10 can also be 65-85 degrees.

[0108] The display panel may further include a polarizer 23, which is disposed on the side of the second cover layer 21 away from the driving backplate 10. The polarizer 23 filters more light of one color than the other two colors. The polarizer 23 may filter more green light than red and blue light, or more blue light than red and green light, or more red light than green and blue light. The display panel may also include a cover plate 24, which is disposed on the side of the polarizer 23 away from the driving backplate 10.

[0109] This invention also provides a display device, which may include the display panel described in any of the above embodiments of this invention. The specific structure and beneficial effects of the display panel have already been described in detail above, and therefore will not be repeated here.

[0110] It should be noted that, in addition to the display panel, the display device also includes other necessary components and parts, such as the casing, circuit board, power cord, etc. Those skilled in the art can make corresponding additions according to the specific usage requirements of the display device, which will not be elaborated here.

[0111] Display devices can also be emerging wearable devices, such as virtual reality and augmented reality devices, or traditional electronic devices, such as mobile phones, computers, televisions, and video recorders. These will not be listed exhaustively here.

[0112] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention described herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the appended claims.

Claims

1. A display panel, wherein, include: Drive backplane; A pixel defining layer is disposed on one side of the driving backplate. The pixel defining layer includes a plurality of pixel defining parts, and a pixel opening is formed between the sides of the pixel defining parts that are close to each other. The light-emitting layer includes at least three different colored light-emitting devices, each of which is disposed within the opening of each pixel; A light-shielding layer is disposed on the side of the light-emitting layer away from the driving back plate. The light-shielding layer has a light-emitting opening. The orthographic projection of the pixel opening on the driving back plate is located within the orthographic projection of the light-emitting opening on the driving back plate. A light-transmitting opening is provided between two adjacent light-emitting openings.

2. The display panel according to claim 1, wherein, The light-shielding layer includes multiple light-shielding parts, which surround the light-emitting opening, and the light-transmitting opening is formed between two adjacent light-shielding parts.

3. The display panel according to claim 2, wherein, The light-shielding layer includes at least two light-shielding layers, and the projections of the light-emitting openings on each light-shielding layer onto the drive back plate coincide with each other, and the projections of the light-transmitting openings on each light-shielding layer onto the drive back plate coincide with each other.

4. The display panel according to claim 3, wherein, The light-shielding layer includes a first light-shielding layer and a second light-shielding layer. The first light-shielding layer is provided with a first light-emitting opening and a first light-transmitting opening. The second light-shielding layer is provided with a second light-emitting opening and a second light-transmitting opening. The orthographic projection of the second light-emitting opening on the drive back plate coincides with the orthographic projection of the first light-emitting opening on the drive back plate. The orthographic projection of the second light-transmitting opening on the drive back plate coincides with the orthographic projection of the first light-transmitting opening on the drive back plate.

5. The display panel according to claim 4, wherein, The display panel further includes a touch protection layer, a first cover layer, and a second cover layer. The touch protection layer is disposed between the light-emitting layer and the first light-shielding layer, the first cover layer is disposed between the first light-shielding layer and the second light-shielding layer, and the second cover layer is disposed on the side of the second light-shielding layer away from the driving backplate.

6. The display panel according to claim 5, wherein, The touch protection layer has a third refractive unit on the side away from the driving back plate. The third refractive unit is located inside the first light-transmitting opening. The refractive index of the first cover layer is greater than the refractive index of the third refractive unit. The angle between the side of the third refractive unit and the side of the first cover layer away from the driving back plate is less than 90 degrees.

7. The display panel according to claim 6, wherein, A fourth refractive unit is provided on the side of the first cover layer away from the drive back plate. The fourth refractive unit is located inside the second light-transmitting opening. The refractive index of the second cover layer is less than the refractive index of the fourth refractive unit. The angle between the side of the fourth refractive unit and the side of the second cover layer away from the drive back plate is less than 90 degrees.

8. The display panel according to claim 7, wherein, The orthographic projection of the fourth refractive unit on the drive back plate overlaps with the orthographic projection of the third refractive unit on the drive back plate.

9. The display panel according to claim 1, wherein, The display panel further includes a touch protection layer and a first cover layer. The touch protection layer is disposed on the side of the light-emitting layer away from the driving back plate. The first cover layer is disposed between the light-shielding layer and the touch protection layer. A first refractive unit is provided on the side of the touch protection layer away from the driving back plate. The refractive index of the first refractive unit is less than that of the first cover layer. The angle between the side of the first refractive unit and the side of the first cover layer away from the driving back plate is less than 90 degrees. A first dimming opening is formed between two adjacent first refractive units. The orthographic projection of the first dimming opening on the driving back plate overlaps with the orthographic projection of the light-emitting opening on the driving back plate.

10. The display panel according to claim 9, wherein, The first refractive unit includes two sub-first refractive units, and a third dimming opening is formed between two adjacent sub-first refractive units. The orthographic projection of the third dimming opening on the drive back plate overlaps with the orthographic projection of the light-transmitting opening on the drive back plate.

11. The display panel according to claim 10, wherein, The light-shielding layer is disposed on the side of the first cover layer away from the driving back plate. The touch protection layer is provided with a third refractive unit on the side away from the driving back plate. The third refractive unit is disposed between two adjacent sub-first refractive units. The refractive index of the first cover layer is greater than the refractive index of the third refractive unit. The angle between the side of the third refractive unit and the side of the first cover layer away from the driving back plate is less than 90 degrees.

12. The display panel according to claim 1, wherein, The display panel further includes a first cover layer and a second cover layer. The first cover layer is disposed on the side of the light-shielding layer away from the driving back plate, and the second cover layer is disposed on the side of the first cover layer away from the driving back plate. A second refractive unit is provided on the side of the first cover layer away from the driving back plate. The refractive index of the second refractive unit is less than that of the second cover layer. The angle between the side of the second refractive unit and the side of the first cover layer away from the driving back plate is less than 90 degrees. A second dimming opening is formed between two adjacent second refractive units. The orthographic projection of the second dimming opening on the driving back plate overlaps with the orthographic projection of the light-emitting opening on the driving back plate.

13. The display panel according to claim 12, wherein, The second refractive unit includes two sub-second refractive units, and a fourth dimming opening is formed between two adjacent sub-second refractive units. The orthographic projection of the fourth dimming opening on the drive back plate overlaps with the orthographic projection of the light-transmitting opening on the drive back plate.

14. The display panel according to claim 13, wherein, The light-shielding layer is disposed on the side of the first cover layer near the drive back plate. A fourth refractive unit is disposed on the side of the first cover layer away from the drive back plate. The fourth refractive unit is disposed between two adjacent sub-second refractive units. The refractive index of the second cover layer is greater than the refractive index of the fourth refractive unit. The angle between the side of the fourth refractive unit and the side of the second cover layer away from the drive back plate is less than 90 degrees.

15. The display panel according to claim 8, wherein, The distance between the edge of the third refractive unit and the edge of the first light-transmitting opening is greater than or equal to 3 μm, and the distance between the edge of the fourth refractive unit and the edge of the second light-transmitting opening is greater than or equal to 3 μm.

16. The display panel according to claim 8, wherein, The angle between the side of the third refractive unit and the side of the third refractive unit near the drive back plate is 45 degrees to 90 degrees, and the angle between the side of the fourth refractive unit and the side of the fourth refractive unit near the drive back plate is 45 degrees to 90 degrees.

17. The display panel according to claim 16, wherein, The third refractive unit is made of the same material as the touch protection layer, and the fourth refractive unit is made of the same material as the first cover layer.

18. The display panel according to claim 17, wherein, The refractive index of the touch protection layer is 1.45-1.5, the refractive index of the first cover layer is 1.65-1.75, and the refractive index of the second cover layer is 1.45-1.

5.

19. The display panel according to claim 5 or 9, wherein, The display panel further includes an encapsulation layer and a first touch control layer. The encapsulation layer is disposed on the side of the light-emitting layer away from the driving backplate. The first touch control layer is disposed between the encapsulation layer and the touch protection layer. The first touch control layer includes a plurality of first touch units, which are spaced apart. The orthographic projection of the first touch unit on the driving backplate is located within the orthographic projection of the light-transmitting opening on the driving backplate.

20. The display panel according to claim 1, wherein, The multiple light-emitting devices of different colors include a first light-emitting device, a second light-emitting device, and a third light-emitting device. The first light-emitting device is red, the second light-emitting device is green, and the third light-emitting device is blue.

21. The display panel according to claim 20, wherein, The light-emitting layer includes: Multiple pixel electrodes are respectively disposed in different pixel openings; Multiple light-emitting units of different colors are respectively disposed on the side of each pixel electrode away from the driving backplate; A common electrode is located on the side of the plurality of light-emitting units away from the driving backplate.

22. The display panel according to claim 5 or 12, wherein, The display panel also includes a polarizer, which is disposed on the side of the second cover layer away from the driving backplate, and the polarizer filters more light of one color than light of the other two colors.

23. A display device, wherein, Includes the display panel as described in any one of claims 1 to 22.

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