Display panel and display device

Abstract

This invention provides a display panel and a display device. The display panel includes: a substrate, comprising a first display area and a second display area; a driving circuit layer disposed on the substrate; a light-emitting device disposed on the side of the driving circuit layer away from the substrate; an encapsulation layer disposed on the side of the light-emitting device away from the substrate; a first light-shielding pattern disposed on the side of the encapsulation layer away from the substrate and within the first display area, the first light-shielding pattern defining a plurality of first opening areas; and a color filter layer disposed on the side of the encapsulation layer away from the substrate, the color filter layer comprising: a first color filter pattern disposed in the first display area and a second color filter pattern disposed in the second display area, the first color filter pattern being disposed in the first opening area, and the thickness of the second color filter pattern being greater than the thickness of the first color filter pattern. This invention can reduce the visual difference between the first display area and the second display area.

Description

Technical Field

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

[0002] Under-display cameras, especially those with full-screen display capabilities, have emerged as a promising development direction, as they can integrate the functions of a front-facing camera while ensuring a good display experience.

[0003] COE (Color On Encapsulation) is a method of creating a color filter on the encapsulation layer to replace the original polarizer, thereby reducing the thickness of the display panel and increasing the flexibility of the device. In addition, the elimination of the polarizer increases the light transmittance, thereby reducing the power consumption of the display device.

[0004] Integrating COE and under-display camera technology will be a hot development direction.

[0005] However, because color filter technology uses a light-shielding layer (BM) to block light, the overall light transmittance is relatively low. The under-display camera area requires higher transmittance; therefore, in related technologies, to improve light transmittance, a large area of ​​the light-shielding layer is removed in the under-display camera area. The consequence of this is that, without the light-shielding layer, the under-display camera area reflects more light than the normal display area when the screen is off, resulting in a noticeable visual difference between the under-display camera area and the normal display area. Summary of the Invention

[0006] This invention provides a display panel and a display device to solve the problem that, in the screen-off state, the under-display camera area has a significant visual difference compared to the normal display area.

[0007] To solve the above-mentioned technical problems, the present invention is implemented as follows:

[0008] In a first aspect, embodiments of the present invention provide a display panel, comprising:

[0009] The substrate includes a first display area and a second display area;

[0010] A driving circuit layer is disposed on the substrate.

[0011] A light-emitting device is disposed on the side of the driving circuit layer away from the substrate.

[0012] An encapsulation layer is disposed on the side of the light-emitting device away from the substrate.

[0013] A first light-shielding pattern is disposed on the side of the encapsulation layer away from the substrate and within the first display area, and the first light-shielding pattern defines a plurality of first opening areas;

[0014] A color filter layer is disposed on the side of the encapsulation layer away from the substrate. The color filter layer includes a first color filter pattern disposed in the first display area and a second color filter pattern disposed in the second display area. The first color filter pattern is disposed in the first opening area, and the thickness of the second color filter pattern is greater than the thickness of the first color filter pattern.

[0015] Optionally, the thickness of the first color filter pattern ranges from 1 to 6 μm;

[0016] The thickness of the second color filter pattern ranges from 2 to 7 μm.

[0017] Optionally, the display panel further includes:

[0018] A transparent layer is disposed on the side of the encapsulation layer away from the substrate and within the second display area. The transparent layer defines a plurality of second opening areas, and the second color filter pattern is disposed in the second opening areas.

[0019] The refractive index of the transparent layer is less than the refractive index of the second color filter pattern.

[0020] Optionally, the refractive index of the second color filter pattern is in the range of 1.6-2.2;

[0021] The refractive index of the transparent layer is in the range of 1-1.5.

[0022] Optionally, the thickness of the transparent layer is greater than the thickness of the first light-shielding pattern.

[0023] Optionally, the thickness of the transparent layer ranges from 2 to 6 μm;

[0024] The thickness of the first light-shielding pattern ranges from 1 to 2 μm.

[0025] Optionally, the display panel further includes:

[0026] The touch traces are disposed on the side of the encapsulation layer away from the substrate. The touch traces include a first touch trace disposed in the first display area and a second touch trace disposed in the second display area. Within the same area, the length of the second touch trace is less than the length of the first touch trace.

[0027] Optionally, the first touch trace is arranged around the first color filter pattern to form a metal mesh in the first display area;

[0028] The second touch trace extends along the boundary of the second color filter pattern, and the orthographic projection of a part of the boundary of the second color filter pattern on the substrate is located within the orthographic projection area of the second touch trace on the substrate.

[0029] Optionally, the display panel further includes: a pixel defining layer that defines a plurality of third opening areas;

[0030] The light-emitting device includes: an anode, a light-emitting layer, and a cathode;

[0031] The anode includes a first anode portion and a second anode portion. The first anode portion is located in the third opening area, and the second anode portion is covered by the pixel defining layer;

[0032] The orthographic projection of the second touch trace on the substrate is located within the orthographic projection area of the second anode portion on the substrate;

[0033] Or

[0034] The orthographic projection of the second touch trace on the substrate is located within the orthographic projection area of the pixel defining layer on the substrate, and the orthographic projection of a part of the second touch trace on the substrate is located within the orthographic projection area of the second anode portion on the substrate;

[0035] Or

[0036] The orthographic projection of the second touch trace on the substrate is located within the orthographic projection area of the pixel defining layer on the substrate, and the orthographic projection of the second touch trace on the substrate does not overlap with the orthographic projection of the second anode portion on the substrate.

[0037] Optionally, the display panel further includes:

[0038] A second light-shielding pattern is provided on a side of the encapsulation layer away from the substrate and within the second display area. At least a part of the second light-shielding pattern surrounds the second color filter pattern. The second light-shielding pattern surrounding the second color filter pattern is in a square shape with a hole in the middle. The orthographic projection of the boundary of the second color filter pattern on the substrate is located within the orthographic projection area of the second light-shielding pattern on the substrate.

[0039] Optionally, the display panel further includes:

[0040] Touch traces are disposed on the side of the encapsulation layer away from the substrate. The touch traces include a first touch trace disposed in the first display area and a second touch trace disposed in the second display area. Within the same area, the length of the second touch trace is less than the length of the first touch trace.

[0041] The orthographic projection of the second touch trace on the substrate is located within the orthographic projection area of ​​the second light-shielding pattern on the substrate.

[0042] Optionally, the display panel further includes:

[0043] A transparent layer is disposed on the side of the second light-shielding pattern away from the substrate and within the second display area. The transparent layer defines a plurality of second opening areas, and the second color filter pattern is disposed in the second opening area. The refractive index of the transparent layer is less than the refractive index of the second color filter pattern.

[0044] The orthographic projection of the second light-shielding pattern on the substrate is located within the orthographic projection area of ​​the transparent layer on the substrate.

[0045] In a second aspect, embodiments of the present invention provide a display device, including a display panel as described in the first aspect above and a camera located on one side of the display panel, wherein the camera is positioned corresponding to a second display area on the substrate of the display panel.

[0046] In this embodiment of the invention, the thickness of the color filter pattern in the second display area (i.e., the under-display camera area) is greater than the thickness of the color filter pattern in the first display area (i.e., the normal display area), thereby enabling the color filter pattern in the second display area to absorb more reflected light compared to the color filter pattern in the first display area, reducing the visual difference between the under-display camera area and the normal display area in the screen-off state caused by the large-area removal of the light-shielding layer in the second display area. Attached Figure Description

[0047] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0048] Figure 1 This is a schematic diagram of the structure of a display device in related technologies;

[0049] Figure 2 This is one of the structural schematic diagrams of the display panel according to an embodiment of the present invention;

[0050] Figure 3This is a second schematic diagram of the display panel structure according to an embodiment of the present invention;

[0051] Figure 4 This is the third schematic diagram of the display panel structure according to an embodiment of the present invention;

[0052] Figure 5 This is the fourth schematic diagram of the display panel structure according to an embodiment of the present invention;

[0053] Figure 6 This is a schematic diagram showing the relative position of the second touch trace and the anode in an embodiment of the present invention;

[0054] Figure 7 This is a schematic diagram illustrating the working principle of the display panel in an embodiment of the present invention. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a display panel in the related technology. The display panel forms a color filter layer (e.g., red (R), green (G), blue (B) color filter) on the encapsulation layer. In the under-display camera area, in order to improve the light transmittance, a large area of ​​the light shielding layer (BM) is removed. After the under-display camera area is not shielded by the light shielding layer, the reflected light in the under-display camera area is more than that in the normal display area when the screen is off, thus causing a significant visual difference between the under-display camera area and the normal display area.

[0057] To solve the above problems, please refer to... Figure 2 This invention provides a display panel, comprising:

[0058] The substrate 11 includes a first display area and a second display area; the substrate 11 can be a rigid substrate such as a glass substrate, or a flexible substrate such as a PI (polyimide) substrate; in this embodiment of the invention, the first display area can be a normal display area for normal image display, and the second display area can be an under-display camera area for setting an under-display camera, and can also be used for display.

[0059] A driving circuit layer 12 is disposed on the substrate 11; the driving circuit layer 12 may include thin film transistors (TFTs) and signal lines, etc., for driving the light-emitting device 13 to emit light;

[0060] The light-emitting device 13 is disposed on the side of the driving circuit layer 12 away from the substrate 11; the light-emitting device 13 may include an anode, a light-emitting layer and a cathode stacked together;

[0061] An encapsulation layer 14 is disposed on the side of the light-emitting device 13 away from the substrate 11;

[0062] A first light-shielding pattern 15 is disposed on the side of the encapsulation layer 14 away from the substrate 11 and within the first display area. The first light-shielding pattern 15 defines a plurality of first opening areas. The first light-shielding pattern 15 may be a black matrix (BM).

[0063] A color filter layer is disposed on the side of the encapsulation layer 14 away from the substrate 11. The color filter layer includes a first color filter pattern 16 disposed in the first display area and a second color filter pattern 17 disposed in the second display area. The first color filter pattern 16 is disposed in the first opening area, and the thickness of the second color filter pattern 17 is greater than the thickness of the first color filter pattern 16.

[0064] To improve the light transmittance of the second display area, in this embodiment of the invention, a large area of ​​the light-shielding layer can be removed from the second display area. Because the second display area lacks the light-shielding layer, it reflects more light than the first display area when the screen is off, resulting in a noticeable visual difference. To address this issue, in this embodiment of the invention, the thickness of the color filter pattern in the second display area is greater than that in the first display area. This allows the color filter pattern in the second display area to absorb more reflected light, reducing the intensity of emitted light and minimizing the visual difference between the first display area (under-display camera area) and the second display area (normal display area) when the screen is off, caused by the large-scale removal of the light-shielding layer in the second display area.

[0065] Please refer to Figure 7 In the screen-off state, external light passes through the first color filter pattern 16 or the second color filter pattern 17 and enters the display panel. It is reflected by the anode in the light-emitting device of the display panel, and the reflected light passes through the first color filter pattern 16 or the second color filter pattern 17 again before exiting from the display surface of the display panel. Figure 7As can be seen, because the thickness of the second color filter pattern 17 is greater than that of the first color filter pattern 16, it can absorb more light. Therefore, the intensity of the light after passing through the second color filter pattern 17 is lower than the intensity of the light after passing through the first color filter pattern 16 (the thickness of the arrow represents the intensity of the light; the thicker the arrow, the greater the intensity). Furthermore, after the light enters the display panel, it is reflected by the anode in the light-emitting device of the display panel. The reflected light then passes through either the first color filter pattern 16 or the second color filter pattern 17 again. It can be seen that the intensity of the light emitted from the second color filter pattern 17 is significantly lower than the intensity of the light emitted from the first color filter pattern 16.

[0066] Figure 2 In the illustrated embodiment, the color filter layer includes three colors: red (R), green (G), and blue (B). Of course, in other embodiments of the present invention, the colors may not be limited to the above three. Figure 2 In the illustrated embodiment, the light-emitting device 13 also includes three colors of light-emitting devices: a red light-emitting device, a green light-emitting device, and a blue light-emitting device. The red light-emitting device corresponds to the position of the red color film, the green light-emitting device corresponds to the position of the green color film, and the blue light-emitting device corresponds to the position of the blue color film. Optionally, the orthographic projection of the effective light-emitting area of ​​the red light-emitting device on the substrate 11 lies within the orthographic projection area of ​​the red color film on the substrate 11; the orthographic projection of the effective light-emitting area of ​​the green light-emitting device on the substrate 11 lies within the orthographic projection area of ​​the green color film on the substrate 11; and the orthographic projection of the effective light-emitting area of ​​the blue light-emitting device on the substrate 11 lies within the orthographic projection area of ​​the blue color film on the substrate 11.

[0067] In this embodiment of the invention, optionally, the thickness of the first color filter pattern 16 is in the range of 1-6 μm; the thickness of the second color filter pattern 17 is in the range of 2-7 μm. This thickness setting ensures that the brightness of the first display area and the second display area is essentially the same when the screen is off.

[0068] Please refer to Figure 1 In related technologies, because the light-shielding layer of the under-display camera area is largely removed, the light-emitting device in the under-display camera area has a larger emission angle, which causes the under-display camera area to have the problem of lateral light leakage.

[0069] To solve the above problems, please refer to Figure 3In this embodiment of the invention, optionally, the display panel further includes: a transparent layer 18 disposed on the side of the encapsulation layer 14 away from the substrate 11 and disposed within the second display area; the transparent layer 18 defines a plurality of second opening areas; the second color filter pattern 17 is disposed in the second opening area; the refractive index of the transparent layer 18 is less than the refractive index of the second color filter pattern 17.

[0070] In this embodiment of the invention, the transparent layer 18 is a low-refractive-index layer, and the second color filter pattern 17 is a high-refractive-index layer. Utilizing the total internal reflection phenomenon of the high-refractive-index layer and the low-refractive-index layer, please refer to... Figure 3 and Figure 7 The light emitted from the light-emitting device 13 undergoes total internal reflection at the boundary between the second color filter pattern 17 and the transparent layer 18, thereby adjusting the light emitted from the light-emitting device 13 in the lateral direction to be emitted from the frontal viewing angle of the display panel, reducing the lateral luminous intensity and aligning with the viewing angle attenuation trend of the first display area. Furthermore, since the transparent layer 18 is transparent, it does not affect the light transmittance of the second display area.

[0071] In this embodiment of the invention, optionally, the refractive index range of the second color filter pattern 17 is 1.6-2.2; the refractive index range of the transparent layer 18 is 1-1.5. By setting the refractive indices of the second color filter pattern 17 and the transparent layer 18, total internal reflection of light can be achieved at the boundary between the second color filter pattern 17 and the transparent layer 18.

[0072] In this embodiment of the invention, optionally, the thickness of the transparent layer 18 is greater than the thickness of the first light-shielding pattern 15, so that the depth of the second opening area defined by the transparent layer 18 is greater than the depth of the first opening area defined by the first light-shielding pattern 15, which is beneficial to forming a thicker color film in the second opening area.

[0073] In this embodiment of the invention, optionally, the thickness of the transparent layer 18 is in the range of 2-6 μm; the thickness of the first light-shielding pattern 15 is in the range of 1-2 μm.

[0074] The display panel in this embodiment of the invention can be a touch display substrate, i.e., a display panel with touch functionality. This display panel can have touch (TP) traces set on top of the encapsulation layer, i.e., an FMLOC (Multi-Layer On Cell, flexible multilayer touch display device) structure. Currently, the touch traces in the FMLOC structure can be set in a metal mesh shape, with the metal mesh surrounding the color filter pattern. However, if a metal mesh-shaped touch trace is set in the second display area, it will inevitably affect the light transmittance of the second display area. In some instances, to improve the light transmittance of the second display area, the touch traces in the second display area can be removed; however, in this structure, the second display area will not have touch functionality. To avoid affecting the touch functionality of the second display area, the touch traces in the second display area need to be designed differently from those in the first display area.

[0075] In this embodiment of the invention, optional details may be found, please refer to [the relevant documentation]. Figure 4 and Figure 5 The display panel further includes: touch traces disposed on the side of the encapsulation layer 14 away from the substrate 11. The touch traces include a first touch trace 19 disposed in the first display area and a second touch trace 20 disposed in the second display area. Within the same area, the length of the second touch trace 20 is less than the length of the first touch trace 19. This arrangement can minimize the impact of the second touch trace 20 on the light transmittance of the second display area.

[0076] In this embodiment of the invention, optionally, the first touch trace 19 is disposed around the periphery of the first color filter pattern 16, forming a metal mesh in the first display area, and the second touch trace 20 extends along the boundary of the second color filter pattern 17, with a portion of the boundary of the second color filter pattern 17 projected onto the substrate 11 and falling within the projection area of ​​the second touch trace 20 onto the substrate 11. This arrangement can further reduce the impact of the second touch trace 20 on the light transmittance of the second display area.

[0077] from Figure 5 As can be seen, compared with the first touch line 19 of the first display area, the second touch line 20 of the second display area is only provided around some of the second color film patterns 17. Some of the second color film patterns 17 are not provided around the second touch line 20. Moreover, in the part of the second color film patterns 17 that are provided around the second touch line 20, the second touch line 20 is not provided on all four sides. At most, the second touch line 20 is provided at two boundary positions. In this way, the touch function of the second display area can be guaranteed while maximizing the light transmittance of the second display area.

[0078] Please refer to Figure 4 and Figure 6 The display panel further includes a pixel defining layer 22, which defines a plurality of third opening areas;

[0079] The light-emitting device 13 includes: an anode 131, a light-emitting layer 132, and a cathode 133;

[0080] The anode 131 includes a first anode portion and a second anode portion, the first anode portion being located in the third opening region, and the second anode portion being covered by the pixel defining layer 22;

[0081] The positional relationship between the second touch trace 20 and the anode 131 can include the following three types:

[0082] For the first option, please refer to... Figure 6 In diagram (A), the orthographic projection of the second touch trace 20 onto the substrate 11 lies within the orthographic projection area of ​​the second anode portion onto the substrate 11; that is, the second touch trace 20 is located within the boundary of the anode. This arrangement minimizes the impact of the second touch trace 20 on the light transmittance of the second display area.

[0083] The second option, please refer to Figure 6 In (B), the orthographic projection of the second touch trace 20 on the substrate 11 is located within the orthographic projection area of ​​the pixel defining layer 22 on the substrate 11, and a portion of the orthographic projection of the second touch trace 20 on the substrate 11 is located within the orthographic projection area of ​​the second anode portion on the substrate 11. That is, the orthographic projection of the boundary of the second anode portion on the substrate 11 is located within the orthographic projection area of ​​the second touch trace 20 on the substrate 11, i.e., the boundary of the second touch trace 20 overlaps with the boundary of the anode.

[0084] The third option, please refer to Figure 6 In (C), the orthographic projection of the second touch trace 20 on the substrate 11 is located within the orthographic projection area of ​​the pixel defining layer 22 on the substrate 11, and the orthographic projection of the second touch trace 20 on the substrate 11 does not overlap with the orthographic projection of the second anode portion on the substrate, that is, the second touch trace 20 is located outside the boundary of the anode.

[0085] To further reduce the lateral light emission intensity of the second display area, please refer to... Figure 4 and Figure 5In this embodiment of the invention, optionally, the display panel further includes: a second light-shielding pattern 21, disposed on the side of the encapsulation layer 14 away from the substrate 11 and disposed within the second display area, at least a portion of the second light-shielding pattern 21 being disposed around the second color filter pattern 17, the second light-shielding pattern 21 being disposed in a U-shape around the second color filter pattern 17, the orthographic projection of the boundary of the second color filter pattern 17 on the substrate 11 being located within the orthographic projection area of ​​the second light-shielding pattern 21 on the substrate 11, by disposing the second light-shielding pattern 21 around the second color filter pattern 17, light emitted laterally by the light-emitting device can be blocked.

[0086] Please refer to Figure 7 When the lateral light emitted by the light-emitting device is incident on the second light-shielding pattern 21, it is blocked by the second light-shielding pattern 21 and thus cannot be emitted from the side.

[0087] In this embodiment of the invention, if the display panel includes both a second touch trace 20 and a second light-shielding pattern 21, then optionally, the orthographic projection of the second touch trace 20 on the substrate 11 is located within the orthographic projection area of ​​the second light-shielding pattern 21 on the substrate 11, thereby reducing the influence of the second touch trace 20 on the light of the second display area.

[0088] In this embodiment of the invention, if the display panel includes both a second light-shielding pattern 21 and a transparent layer 18, optionally, the orthographic projection of the second light-shielding pattern 21 on the substrate 11 is located within the orthographic projection area of ​​the transparent layer 18 on the substrate 11, that is, it does not exceed the boundary of the transparent layer 18, thereby reducing the impact on the light transmittance of the second display area.

[0089] In this embodiment of the invention, if the display panel includes both a second light-shielding pattern 21 and a second touch trace 20, optionally, the orthographic projection of the second touch trace 20 on the substrate 11 is located within the orthographic projection area of ​​the transparent layer 18 on the substrate 11, that is, it does not exceed the boundary of the transparent layer 18, thereby reducing the impact on the light transmittance of the second display area.

[0090] Of course, in other embodiments of the present invention, the display panel may include at least one of the second light-shielding pattern 21, the transparent layer 18, and the second touch trace 20.

[0091] In this embodiment of the invention, optional details may be found, please refer to [the relevant documentation]. Figure 4 The display panel may also include a protective layer 23 located on the side of the color filter layer away from the substrate 11, for encapsulating and protecting the color filter layer.

[0092] In this embodiment of the invention, optional details may be found, please refer to [the relevant documentation]. Figure 4The display panel may also include a support pad (PS) 24 located on the side of the pixel definition layer 22 away from the substrate 11, for supporting purposes.

[0093] This invention also provides a display device, which includes a display panel as described in any of the above embodiments and a camera located on one side of the display panel. The camera is positioned to correspond to a second display area on the substrate of the display panel, that is, the photosensitive surface of the camera should face the second display area.

[0094] The display device can be an electronic device such as a mobile phone or tablet computer.

[0095] This invention also provides a method for manufacturing a display panel, comprising:

[0096] Step 1: Provide a substrate, including a first display area and a second display area;

[0097] Step 2: A driving circuit layer, a light-emitting device, an encapsulation layer, a first light-shielding pattern, and a color filter layer are sequentially formed on the substrate. The first light-shielding pattern is disposed in the first display area and defines a plurality of first opening areas. The color filter layer includes a first color filter pattern formed in the first display area and a second color filter pattern formed in the second display area. The first color filter pattern is formed in the first opening area, and the thickness of the second color filter pattern is greater than the thickness of the first color filter pattern.

[0098] Optionally, the thickness of the first color filter pattern is in the range of 1-6 μm; the thickness of the second color filter pattern is in the range of 2-7 μm.

[0099] Optionally, after forming the encapsulation layer and before forming the color filter layer, the method further includes:

[0100] A transparent layer is formed within the second display area, the transparent layer defining a plurality of second opening areas, and the second color filter pattern is formed in the second opening areas; the refractive index of the transparent layer is less than the refractive index of the second color filter pattern.

[0101] Optionally, the refractive index of the second color filter pattern is in the range of 1.6-2.2;

[0102] The refractive index of the transparent layer is in the range of 1-1.5.

[0103] Optionally, the thickness of the transparent layer is greater than the thickness of the first light-shielding pattern.

[0104] Optionally, the thickness of the transparent layer ranges from 2 to 6 μm;

[0105] The thickness of the first light-shielding pattern ranges from 1 to 2 μm.

[0106] Optionally, before forming the color filter layer, the method further includes:

[0107] A touch trace is formed, comprising a first touch trace formed in the first display area and a second touch trace formed in the second display area. Within the same area, the length of the second touch trace is less than the length of the first touch trace.

[0108] Optionally, the first touch trace is arranged around the first color filter pattern to form a metal mesh in the first display area; the second touch trace extends along the boundary of the second color filter pattern, and the orthographic projection of a portion of the boundary of the second color filter pattern on the substrate is located within the orthographic projection area of ​​the second touch trace on the substrate.

[0109] Optionally, the light-emitting device includes: an anode, a light-emitting layer, and a cathode; after forming the anode and before forming the light-emitting layer, the method further includes:

[0110] A pixel defining layer is formed, the pixel defining layer defining a plurality of third opening regions; wherein, the anode includes a first anode portion and a second anode portion, the first anode portion is located in the third opening region, and the second anode portion is covered by the pixel defining layer;

[0111] The orthographic projection of the second touch trace on the substrate is located within the orthographic projection area of ​​the second anode portion on the substrate.

[0112] or

[0113] The orthographic projection of the second touch trace on the substrate is located within the orthographic projection area of ​​the pixel defining layer on the substrate, and a portion of the orthographic projection of the second touch trace on the substrate is located within the orthographic projection area of ​​the second anode portion on the substrate.

[0114] or

[0115] The orthographic projection of the second touch trace on the substrate is located within the orthographic projection area of ​​the pixel defining layer on the substrate, and the orthographic projection of the second touch trace on the substrate does not overlap with the orthographic projection of the second anode portion on the substrate.

[0116] Optionally, after forming the encapsulation layer and before forming the color filter layer, the method further includes:

[0117] A second light-shielding pattern is formed in the second display area, and at least a part of the second light-shielding pattern is disposed around the second color film pattern. The second light-shielding pattern disposed around the second color film pattern is in a shape of a Chinese character 'hui' (回), and the orthographic projection of the boundary of the second color film pattern on the substrate is located within the orthographic projection area of the second light-shielding pattern on the substrate.

[0118] Optionally, the second light-shielding pattern and the first light-shielding pattern are formed of the same layer and the same material, and are formed through a single patterning process.

[0119] If the display panel includes second touch wirings, optionally, the orthographic projection of the second touch wirings on the substrate is located within the orthographic projection area of the second light-shielding pattern on the substrate.

[0120] If the display panel includes a transparent layer, optionally, the orthographic projection of the second light-shielding pattern on the substrate is located within the orthographic projection area of the transparent layer on the substrate.

[0121] If the display substrate includes a transparent layer, second touch wirings, and a second light-shielding pattern, the formation sequence of the three is: first form the second touch wirings, then form the second light-shielding pattern, and finally form the transparent layer.

[0122] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the claims of the present invention, and all of them belong to the protection scope of the present invention.

Claims

1. A display panel, characterized by, The display panel comprises: a substrate, comprising a first display area and a second display area; the second display area is an under-screen camera area; a driving circuit layer, disposed on the substrate; a light emitting device, disposed on a side of the driving circuit layer away from the substrate; an encapsulation layer, disposed on a side of the light emitting device away from the substrate; a first light shielding pattern, disposed on a side of the encapsulation layer away from the substrate, and disposed in the first display area, the first light shielding pattern defining a plurality of first opening areas; a color film layer, disposed on a side of the encapsulation layer away from the substrate, the color film layer comprising: a first color film pattern disposed in the first display area, and a second color film pattern disposed in the second display area, the first color film pattern being disposed in the first opening area, the second color film pattern having a thickness greater than that of the first color film pattern; a transparent layer, disposed on a side of the encapsulation layer away from the substrate, and disposed in the second display area, the transparent layer defining a plurality of second opening areas, the second color film pattern being disposed in the second opening area; the transparent layer having a refractive index less than that of the second color film pattern, so as to achieve total reflection of light at the boundary between the second color film pattern and the transparent layer; a second light shielding pattern, disposed on a side of the encapsulation layer away from the substrate, and disposed in the second display area, at least part of the second light shielding pattern being disposed around the second color film pattern, a normal projection of the second light shielding pattern on the substrate being located within a normal projection area of the transparent layer on the substrate; in the second display area, the transparent layer covers a side surface of the second light shielding pattern close to the second color film pattern.

2. The display panel of claim 1, wherein: the thickness of the first color film pattern ranges from 1 to 6 μm; the thickness of the second color film pattern ranges from 2 to 7 μm.

3. The display panel of claim 1, wherein: the refractive index of the second color film pattern ranges from 1.6 to 2.2; the refractive index of the transparent layer ranges from 1 to 1.

5.

4. The display panel of claim 1, wherein: the thickness of the transparent layer is greater than that of the first light shielding pattern; the thickness of the transparent layer ranges from 2 to 6 μm; the thickness of the first light shielding pattern ranges from 1 to 2 μm.

5. The display panel of claim 1, wherein, Further comprising: a touch control trace, disposed on a side of the encapsulation layer away from the substrate, the touch control trace comprising a first touch control trace disposed in the first display area and a second touch control trace disposed in the second display area, the length of the second touch control trace being less than that of the first touch control trace in the same area.

6. The display panel of claim 5, wherein: the first touch control trace is disposed around the periphery of the first color film pattern, forming a metal mesh in the first display area. The second touch trace extends along the boundary of the second color filter pattern, and the orthographic projection of a part of the boundary of the second color filter pattern on the substrate is located within the orthographic projection area of the second touch trace on the substrate; the second touch trace is disposed around at most two boundaries of a part of the second color filter pattern.

7. The display panel according to claim 5, wherein the display panel further comprises: a pixel defining layer that defines a plurality of third opening regions; the light-emitting device comprises: an anode, a light-emitting layer, and a cathode; the anode comprises a first anode portion and a second anode portion, the first anode portion is located in the third opening region, and the second anode portion is covered by the pixel defining layer; the orthographic projection of the second touch trace on the substrate is located within the orthographic projection area of the second anode portion on the substrate; or the orthographic projection of the second touch trace on the substrate is located within the orthographic projection area of the pixel defining layer on the substrate, and an orthographic projection of a part of the second touch trace on the substrate is located within the orthographic projection area of the second anode portion on the substrate; or the orthographic projection of the second touch trace on the substrate is located within the orthographic projection area of the pixel defining layer on the substrate, and the orthographic projection of the second touch trace on the substrate does not overlap with the orthographic projection of the second anode portion on the substrate.

8. The display panel according to claim 1, wherein the second light-shielding pattern disposed around the second color filter pattern is in a shape of a Chinese character 'hui' (square with a hole in the middle), and the orthographic projection of the boundary of the second color filter pattern on the substrate is located within the orthographic projection area of the second light-shielding pattern on the substrate.

9. A display device, characterized by comprising: It includes the display panel according to any one of claims 1-8 and a camera located on one side of the display panel, and the installation position of the camera corresponds to the second display area on the substrate of the display panel.

Images