Display panel and display device

Abstract

This application provides a display panel and a display device. The display panel includes a light-emitting device layer and a color filter layer. The light-emitting device layer includes light-emitting devices. By stacking three sub-filter layers of different colors in sequence to form the color filter layer, light leakage can be prevented and the reflectivity of the display panel can be reduced. By setting openings in the portions of the two sub-filter layers with colors different from the light-emitting devices corresponding to the light-emitting devices, the light emitted by the light-emitting devices can pass through the openings, thereby ensuring the luminous efficiency and color purity of the display panel. The sub-filter layers with colors different from the light-emitting devices around the openings can absorb some of the large-angle light emitted by the light-emitting devices. This not only avoids lateral light leakage between adjacent light-emitting devices that leads to color mixing, but also reduces the attenuation of the light emitted by the light-emitting devices at large viewing angles, thereby improving the color shift of the display panel at large viewing angles.

Description

Technical Field

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

[0002] Organic light-emitting diode (OLED) display technology has become one of the most important display technologies today due to its advantages such as low voltage requirement, high power efficiency, fast response, light weight, thinness, simple structure, low cost, wide viewing angle, near-infinite contrast ratio, low power consumption, and extremely high response speed. Polarizers can effectively reduce the reflectivity of display panels under strong light, but they lose nearly 58% of the emitted light. This significantly increases the lifespan of OLEDs. Furthermore, polarizers are relatively thick and brittle, which is detrimental to the development of dynamically bending products. To develop dynamically bending products based on OLED display technology, new materials, technologies, and processes must be introduced to replace polarizers.

[0003] Currently, color filters are commonly used to replace polarizers, which not only reduces the thickness of the display panel but also increases the light output from 42% to 60%. However, color filters are composed of color resist units and black matrix units. The black matrix units have strong light absorption capabilities. At wide viewing angles, the light emitted by the light-emitting units of the display panel is blocked by the black matrix units, resulting in very low brightness of the display panel and severe color distortion at wide viewing angles.

[0004] Therefore, it is necessary to provide a display panel and display device to improve this deficiency. Summary of the Invention

[0005] The embodiments of this application provide a display panel and a display device that can solve the problem of severe color distortion of the display panel at a wide viewing angle.

[0006] To achieve the above objectives, according to a first aspect of this application, a display panel is provided, comprising:

[0007] The light-emitting device layer includes multiple light-emitting devices;

[0008] A color filter layer is disposed on the light-emitting device layer;

[0009] The color filter layer includes three sub-filter layers stacked sequentially and each having a different color. The light emission color of the light-emitting device is different from the color of two of the sub-filter layers. The portions of the two sub-filter layers with different light emission colors from the light-emitting device corresponding to the light-emitting device are provided with openings.

[0010] Optionally, the two sub-filter layers with different emission colors from the light-emitting device are respectively provided with a first hole and a second hole corresponding to the portion of the light-emitting device, and the aperture of the first hole is different from the aperture of the corresponding second hole.

[0011] Optionally, the second hole is disposed on the side of the first hole away from the light-emitting device layer, and the diameter of the first hole is smaller than the diameter of the second hole.

[0012] Optionally, the apertures of the first hole and the second hole gradually increase along the light emission direction of the light-emitting device, and the radial distance between the bottom of the hole wall of the first hole and the top of the hole wall of the second hole is set as the aperture difference.

[0013] The plurality of light-emitting devices include a first light-emitting device, a second light-emitting device, and a third light-emitting device with different light-emitting colors, wherein at least two corresponding aperture differences among the first light-emitting device, the second light-emitting device, and the third light-emitting device are different.

[0014] Optionally, the three sub-filter layers include a first sub-filter layer, a second sub-filter layer, and a third sub-filter layer, which are stacked sequentially on the light-emitting device layer and have different colors.

[0015] The plurality of first holes include a first sub-hole and a second sub-hole disposed on the first sub-filter layer. The first sub-hole and the second sub-hole are respectively aligned with the second light-emitting device and the third light-emitting device. The second sub-filter layer fills the first sub-hole, and the third sub-filter layer fills the second sub-hole.

[0016] Optionally, the second sub-filter layer is continuously disposed in the first sub-aperture and around the first sub-aperture, and the third sub-filter layer is continuously disposed in the second sub-aperture and around the second sub-aperture.

[0017] Optionally, the thickness of the first sub-filter layer is less than the thickness of the second sub-filter layer in the first sub-aperture, and the thickness of the first sub-filter layer is less than the thickness of the third sub-filter layer in the second sub-aperture.

[0018] Optionally, the diameter of the first sub-hole is different from the diameter of the second sub-hole.

[0019] Optionally, the plurality of first holes include third sub-holes, and the plurality of second holes include fourth sub-holes, wherein the third sub-holes and the fourth sub-holes are disposed in the second sub-filter layer;

[0020] The third sub-hole is aligned with the first light-emitting device, the fourth sub-hole is aligned with the second sub-hole, the diameter of the fourth sub-hole is larger than the diameter of the second sub-hole, and the third sub-filter layer is continuously disposed around the third sub-hole, on the wall of the third sub-hole, and in the second sub-hole.

[0021] Optionally, the diameter of the third sub-hole is different from the diameter of the fourth sub-hole.

[0022] Optionally, the plurality of second holes include a fifth sub-hole and a sixth sub-hole, the fifth sub-hole and the sixth sub-hole being disposed in the third sub-filter layer;

[0023] The fifth sub-hole is aligned with the third sub-hole, and the sixth sub-hole is aligned with the first sub-hole. The diameter of the fifth sub-hole is smaller than that of the third sub-hole, and the diameter of the sixth sub-hole is smaller than that of the first sub-hole.

[0024] Optionally, the diameter of the fifth sub-hole is different from the diameter of the sixth sub-hole.

[0025] Optionally, the display panel further includes a planarization layer disposed on the color filter layer.

[0026] Optionally, the light-emitting device layer includes a pixel definition layer, which has a plurality of pixel openings, the aperture of which is smaller than the aperture of the corresponding opening.

[0027] Optionally, the display panel includes:

[0028] An encapsulation layer is disposed on the light-emitting device layer;

[0029] A touch layer is disposed on the encapsulation layer, and a color filter layer is disposed on the touch layer.

[0030] According to a third aspect of this application, a display device is provided, including a display panel as described above.

[0031] In the display panel of this application embodiment, a color filter layer is formed by sequentially stacking three sub-filter layers of different colors. The three sequentially stacked sub-filter layers of different colors can play a role in blocking light in the non-emitting areas, which can not only prevent light leakage from the display panel, but also absorb ambient light entering the display panel, thereby reducing the reflectivity of the display panel. By setting openings in the portions of the two sub-filter layers with colors different from the light emission of the light-emitting device, the light emitted by the light-emitting device can pass through the openings, thereby ensuring the luminous efficiency and color purity of the display panel. The sub-filter layers with colors different from the light emission of the light-emitting device around the openings can absorb some of the large-angle light emitted by the light-emitting device. This can not only avoid lateral light leakage between adjacent light-emitting devices and cause color mixing, but also reduce the attenuation of the light emitted by the light-emitting device at large viewing angles, thereby improving the color shift of the display panel at large viewing angles.

[0032] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0035] Figure 1 A schematic diagram of the film layer structure of a display panel provided for an embodiment of this application;

[0036] Figure 2 A schematic diagram of the openings in the first sub-filter layer, the second sub-filter layer, and the third sub-filter layer provided for embodiments of this application;

[0037] Figure 3 A schematic diagram of the film layer structure of a second type of display panel provided for an embodiment of this application;

[0038] Figure 4 A schematic diagram of the film layer structure of a third type of display panel provided for embodiments of this application;

[0039] Figure 5 A schematic diagram of a display device provided for an embodiment of this application. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0041] An embodiment of this application provides a display panel, which includes a light-emitting device layer and a color filter layer. The light-emitting device layer includes a plurality of light-emitting devices. The color filter layer is disposed on the light-emitting device layer and includes three sub-filter layers stacked sequentially and having different colors. The light-emitting color of the light-emitting device is different from the color of two of the sub-filter layers. The portions of the two sub-filter layers with different light-emitting colors from the light-emitting device corresponding to the light-emitting device are provided with openings.

[0042] In the embodiments of this application, a color filter layer is formed by sequentially stacking three sub-filter layers of different colors. The three sequentially stacked sub-filter layers of different colors can play a role in blocking light in the non-emitting areas, which can not only prevent light leakage from the display panel, but also absorb ambient light incident into the display panel, thereby reducing the reflectivity of the display panel. By setting openings in the portions of the two sub-filter layers with colors different from the light emission of the light-emitting device, the light emitted by the light-emitting device can pass through the openings, thereby ensuring the luminous efficiency and color purity of the display panel. The sub-filter layers with colors different from the light emission of the light-emitting device around the openings can absorb some of the large-angle light emitted by the light-emitting device. This can not only avoid lateral light leakage between adjacent light-emitting devices and cause color mixing, but also reduce the attenuation of the light emitted by the light-emitting device at large viewing angles, thereby improving the color shift of the display panel at large viewing angles.

[0043] Please see Figure 1 , Figure 1 This is a schematic diagram of the film structure of a display panel provided in an embodiment of this application. The display panel 100 includes a light-emitting device layer 2 and a color filter layer 3, with the color filter layer 3 disposed on the light-emitting device layer 2. It should be noted that "the color filter layer 3 is disposed on the light-emitting device layer 2" means that the color filter layer 3 is located above the light-emitting device layer 2 and on the light-emitting side of the light-emitting device layer 2. The color filter layer can directly contact the light-emitting device layer 2, and the color filter layer 3 and the light-emitting device layer 2 can also be separated by a film layer such as an encapsulation layer.

[0044] Please see Figure 1 The light-emitting device layer 2 includes multiple light-emitting devices 20 arranged in an array. The color filter layer 3 includes three sub-filter layers 30 stacked sequentially and of different colors. The light-emitting color of the light-emitting device 20 is the same as the color of one of the three sub-filter layers 30. The light-emitting color of the light-emitting device 20 is different from the color of two of the sub-filter layers 30. The two sub-filter layers 30 with different light-emitting colors from the light-emitting device 20 are provided with openings V corresponding to the light-emitting device 20.

[0045] Please see Figure 1In this embodiment, a color filter layer 3 is formed by sequentially stacking three sub-filter layers 30 of different colors. The three sequentially stacked sub-filter layers 30 of different colors can block light in the non-light-emitting areas, which can not only prevent light leakage from the display panel, but also absorb ambient light entering the display panel, thereby reducing the reflectivity of the display panel. By setting openings V in the parts of the two sub-filter layers 30 with different light emission colors than the light-emitting device 20 corresponding to the light-emitting device 20, the light emitted by the light-emitting device 20 can pass through the openings V, thereby ensuring the luminous efficiency and color purity of the display panel. The sub-filter layers 30 with different light emission colors than the light-emitting device 20 around the openings V can absorb some of the large-angle light emitted by the light-emitting device 20. This can not only avoid lateral light leakage between adjacent light-emitting devices 20 and cause color mixing, but also reduce the attenuation of the light emitted by the light-emitting device 20 at large viewing angles, thereby improving the color shift of the display panel 100 at large viewing angles.

[0046] In some embodiments, please refer to Figure 1 The three-layer sub-filter layer 30 includes a first sub-filter layer 31, a second sub-filter layer 32, and a third sub-filter layer 33. The first sub-filter layer 31, the second sub-filter layer 32, and the third sub-filter layer 33 are sequentially stacked on the light-emitting device layer 2. The second sub-filter layer 32 is disposed on the surface of the first sub-filter layer 31 away from the light-emitting device layer 2, and the third sub-filter layer 33 is disposed on the surface of the second sub-filter layer 32 away from the first sub-filter layer 31. The first sub-filter layer 31, the second sub-filter layer 32, and the third sub-filter layer 33 are all different colors.

[0047] For example, the first sub-filter layer 31 is a red filter layer, which allows red light to pass through; the second sub-filter layer 32 is a green filter layer, which allows green light to pass through; and the third sub-filter layer 33 is a blue filter layer, which allows blue light to pass through. In practical applications, the colors of the first sub-filter layer 31, the second sub-filter layer 32, and the third sub-filter layer 33 can be set according to actual needs, and are not limited to the order of the red, green, and blue filter layers in the above embodiment. For example, the first sub-filter layer 31 can also be a green filter layer or a blue filter layer, the second sub-filter layer 32 can also be a red filter layer or a blue filter layer, and the third sub-filter layer 33 can also be a red filter layer or a green filter layer, as long as the colors of the first sub-filter layer 31, the second sub-filter layer 32, and the third sub-filter layer 33 are different.

[0048] In some embodiments, the display panel includes a display area and a non-display area, with the non-display area disposed around the periphery of the display area. The display area includes multiple light-emitting areas and a non-light-emitting area disposed around the light-emitting areas. The light-emitting areas are regions corresponding to the light-emitting devices 20, and the non-light-emitting areas can be considered as regions between adjacent light-emitting devices 20 that cannot emit light. In the non-light-emitting and non-display areas, a first sub-filter layer 31, a second sub-filter layer 32, and a third sub-filter layer 33 are sequentially stacked without any openings. The sequentially stacked first sub-filter layers 31, second sub-filter layers 32, and third sub-filter layers 33, each with a different color, can replace the black matrix in the non-light-emitting and non-display areas to achieve the functions of light blocking and absorbing ambient light. This not only reduces the reflectivity of the display panel but also eliminates the need for the black matrix in the original color filter layer, thereby simplifying the film structure of the color filter layer and reducing the production cost of the display panel.

[0049] In some embodiments, please refer to Figure 1 The light-emitting device 20 includes a first light-emitting device 21, a second light-emitting device 22, and a third light-emitting device 23, and the first light-emitting device 21, the second light-emitting device 22, and the third light-emitting device 23 emit different colors.

[0050] Please see Figure 1 Taking the first light-emitting device 21 as an example, the light emission color of the first light-emitting device 21 is set to be the same as the color of the first sub-filter layer 31. The light emission color of the first light-emitting device 21 is different from the colors of the second sub-filter layer 32 and the third sub-filter layer 33. The parts of the second sub-filter layer 32 and the third sub-filter layer 33 corresponding to the first light-emitting device 21 are provided with openings V. The openings on the second sub-filter layer 32 and the third sub-filter layer 33 are aligned and connected. The light emitted by the first light-emitting device 21 can be emitted through the openings V on the second sub-filter layer 32 and the third sub-filter layer 33 after passing through the first sub-filter layer 31. In this way, the light emission efficiency of the first light-emitting device 21 can be ensured to be unaffected. The second sub-filter layer 32 and the third sub-filter layer 33 around the opening V can absorb some of the large-angle light emitted by the first light-emitting device 21. This not only avoids lateral light leakage between the first light-emitting device 21 and adjacent light-emitting devices, thus preventing color mixing, but also reduces the attenuation of the light emitted by the first light-emitting device 21 at large viewing angles, thereby improving the color shift of the display panel 100 at large viewing angles. The details of the second light-emitting device 22 and the third light-emitting device 23 are similar to those of the first light-emitting device 21 and will not be elaborated here.

[0051] In some embodiments, two sub-filter layers with different emission colors from the light-emitting device are respectively provided with a first hole and a second hole in the portion corresponding to the light-emitting device, and the aperture of the first hole is different from the aperture of the corresponding second hole.

[0052] Please see Figure 1Taking the first light-emitting device 21 as an example, the second sub-filter layer 32 and the third sub-filter layer 33 above the first light-emitting device 21 are respectively provided with a first hole V1 and a second hole V2. The second hole V2 is aligned with the first hole V1. The aperture of the first hole V1 is different from that of the second hole V2. In this way, some of the large-angle light emitted by the first light-emitting device 21 can be absorbed by the second sub-filter layer 32 and the third sub-filter layer 33 around the first hole V1 and the second hole V2, thereby reducing the attenuation of the light emitted by the first light-emitting device 21 at large viewing angles, thereby improving the color shift of the display panel 100 at large viewing angles.

[0053] It should be noted that the diameter of the first hole refers to the diameter of the bottom of the first hole, and the diameter of the second hole refers to the diameter of the bottom of the second hole.

[0054] In some embodiments, the second hole V2 is disposed on the side of the first hole V1 away from the light-emitting device layer 2, and the diameter of the first hole V1 is smaller than the diameter of the second hole V2.

[0055] Please see Figure 1 Taking the first light-emitting device 21 as an example, the second sub-filter layer 32 above the first light-emitting device 21 is provided with a first hole V1, and the third sub-filter layer 33 is provided with a second hole V2. The aperture of the first hole V1 is smaller than the aperture of the second hole V2. This allows the aperture of the opening in the sub-filter layer above the first light-emitting device 21 to gradually increase along the light emission direction. This avoids the second sub-filter layer 32 and the third sub-filter layer 33 above the first light-emitting device 21, which emit light of a different color than the first light-emitting device 21, from absorbing the small-angle light emitted by the first light-emitting device 21. Thus, while ensuring the light emission efficiency of the first light-emitting device 21, the attenuation of the light emitted by the first light-emitting device 21 at a large viewing angle can be reduced, thereby improving the color shift of the display panel 100 at a large viewing angle.

[0056] In some embodiments, please refer to Figure 1 The apertures of the first aperture V1 and the second aperture V2 gradually increase along the light emission direction of the light-emitting device 20. The radial distance between the bottom of the wall of the first aperture V1 and the top of the wall of the second aperture V2 is defined as the aperture difference L. At least two corresponding aperture differences L among the first light-emitting device 21, the second light-emitting device 22, and the third light-emitting device 23 are different. It should be noted that the aperture difference L is related to the light-blocking degree of the sub-filter layer 30 above the light-emitting device 20. The larger the aperture difference L, the smaller the light-blocking degree of the sub-filter layer 30 above the light-emitting device 20. If the light emitted by the light-emitting device 20 attenuates significantly at large viewing angles, the attenuation degree of the light emitted by the light-emitting device 20 at large viewing angles can be reduced by increasing the aperture difference L above the light-emitting device 20.

[0057] Taking the first light-emitting device 21 and the second light-emitting device 22 as examples, the radial distance between the bottom of the hole wall of the first hole V1 above the first light-emitting device 21 and the top of the hole wall of the second hole V2 is set as the first aperture difference L1, and the radial distance between the bottom of the hole wall of the first hole V1 above the second light-emitting device 22 and the top of the hole wall of the second hole V2 is set as the second aperture difference L2. By making the first aperture difference L1 and the second aperture difference L2 different, the light blocking degree of the sub-filter layer 30 above the first light-emitting device 21 is different from that of the sub-filter layer 30 above the second light-emitting device 22. This adjusts the light attenuation degree of the first light-emitting device 21 and the second light-emitting device 22 at a large viewing angle, thereby improving the color shift of the display panel at a large viewing angle.

[0058] In some embodiments, please refer to Figure 1 The radial distance between the bottom of the wall of the first hole V1 above the first light-emitting device 21 and the top of the wall of the second hole V2 is defined as the first aperture difference L1. The radial distance between the bottom of the wall of the first hole V1 above the second light-emitting device 22 and the top of the wall of the second hole V2 is defined as the second aperture difference L2. The radial distance between the bottom of the wall of the first hole V1 above the third light-emitting device 23 and the top of the wall of the second hole V2 is defined as the third aperture difference L3. The first aperture difference L1, the second aperture difference L2, and the third aperture difference L3 are all different.

[0059] For example, the first aperture difference L1 is greater than or less than the second aperture difference L2, and the second aperture difference L2 is greater than or less than the third aperture difference L3. It should be noted that the aperture difference L mainly depends on the light-emitting material in the light-emitting device 20 and the light attenuation degree of the light-emitting device 20 at a wide viewing angle. The specific values ​​and relationships of the first aperture difference L1, the second aperture difference L2, and the third aperture difference L3 can be selected according to the actual situation, and there are no restrictions here.

[0060] In some embodiments, the first aperture difference L1 is the same as two of the second aperture difference L2 and the third aperture difference L3, while the third aperture difference is different. For example, the first aperture difference L1 is the same as the second aperture difference L2, and the third aperture difference L3 is different from both the first aperture difference L1 and the second aperture difference L2; or, the first aperture difference L1 is the same as the second aperture difference L2, and the third aperture difference L3 is different from both the first aperture difference L1 and the second aperture difference L2. In this way, the light attenuation degree of different light-emitting devices 20 at wide viewing angles can also be adjusted, thereby improving the color shift of the display panel at wide viewing angles.

[0061] In some embodiments, please refer to Figure 1 and Figure 2 , Figure 2This diagram illustrates the openings of a first sub-filter layer, a second sub-filter layer, and a third sub-filter layer, as provided in an embodiment of this application. Multiple first holes V1 include first sub-holes V11 and second sub-holes V12. The first sub-holes V11 and V12 are disposed on the first sub-filter layer 31. The first sub-hole V11 is aligned with the second light-emitting device 22, and the second sub-hole V12 is aligned with the third light-emitting device 23. The second sub-filter layer 32 fills the first sub-hole V11, and the third sub-filter layer 33 fills the second sub-hole V12.

[0062] In some embodiments, please refer to Figure 1 The second sub-filter layer 32 is continuously disposed in the first sub-aperture V11 and around the first sub-aperture V11, and the third sub-filter layer 33 is continuously disposed in the second sub-aperture V12 and around the second sub-aperture V12.

[0063] In some embodiments, please refer to Figure 1 The thickness of the first sub-filter layer 31 is less than the thickness of the second sub-filter layer 32 in the first sub-aperture V11, and the thickness of the first sub-filter layer 31 is less than the thickness of the third sub-filter layer 33 in the second sub-aperture V12. This ensures that the second sub-filter layer 32 can completely fill the first sub-aperture V11, and the third sub-filter layer 33 can completely fill the second sub-aperture V12. The portion of the second sub-filter layer 32 located in the first sub-aperture V11 and the portion surrounding the first sub-aperture V11 can be continuously arranged, and the portion of the third sub-filter layer 33 located in the second sub-aperture V12 and the portion surrounding the second sub-aperture V12 can be continuously arranged.

[0064] In some embodiments, please refer to Figure 1 and Figure 2 The diameter of the first sub-hole V11 is different from that of the second sub-hole V12.

[0065] In one embodiment, the first light-emitting device 21 emits red light, the second light-emitting device 22 emits green light, and the third light-emitting device 23 emits blue light. The aperture of the first sub-aperture V11 is smaller than the aperture of the second sub-aperture V12. This allows the light-emitting area of ​​the third light-emitting device 23 to be larger than that of the second light-emitting device 22, thereby improving the luminous efficiency of the third light-emitting device and extending its service life.

[0066] In some embodiments, please refer to Figure 1 and Figure 2Multiple first holes V1 include a third sub-hole V13, and multiple second holes V2 include a fourth sub-hole V21. The third sub-hole V13 and the fourth sub-hole V21 are disposed on the second sub-filter layer 32. The third sub-hole V13 is aligned with the first light-emitting device 21, and the fourth sub-hole V21 is aligned with the second sub-hole V12. The aperture of the fourth sub-hole V21 is larger than the aperture of the second sub-hole V12. The aperture wall of the fourth sub-hole V21 is recessed within the aperture wall of the second sub-hole V12 and forms a stepped portion. The third sub-filter layer 33 is continuously disposed around the third sub-hole V13, within the aperture wall of the third sub-hole V13, and within the second sub-hole V12. The third sub-filter layer 33 covers the aperture walls of the second sub-hole V12 and the fourth sub-hole V21, as well as the stepped portion.

[0067] In some embodiments, the aperture of the third sub-hole V13 is different from the aperture of the fourth sub-hole V21.

[0068] In some embodiments, please refer to Figure 2 The first light-emitting device 21 emits red light, the second light-emitting device 22 emits green light, and the third light-emitting device 23 emits blue light. The aperture of the third sub-aperture V13 is smaller than the aperture of the fourth sub-aperture V21. This allows the light-emitting area of ​​the third light-emitting device 23 to be larger than that of the first light-emitting device 21, thereby improving the luminous efficiency of the third light-emitting device and extending its service life.

[0069] In some embodiments, please refer to Figure 1 and Figure 2 The plurality of second holes V2 include a fifth sub-hole V22 and a sixth sub-hole V23. The fifth sub-hole V22 and the sixth sub-hole V23 are disposed on the third sub-filter layer 33. The fifth sub-hole V22 is aligned with the third sub-hole V13, and the sixth sub-hole V23 is aligned with the first sub-hole V11. The aperture of the fifth sub-hole V22 is smaller than the aperture of the third sub-hole V13, and the aperture of the sixth sub-hole V23 is smaller than the aperture of the first sub-hole V11.

[0070] In some embodiments, the aperture of the fifth sub-hole V22 is different from the aperture of the sixth sub-hole V23.

[0071] In some embodiments, the aperture of the fifth sub-aperture V22 is larger than the aperture of the sixth sub-aperture V23. The first light-emitting device 21 emits red light and the second light-emitting device 22 emits green light. This makes the light-emitting area of ​​the first light-emitting device 21 larger than the light-emitting area of ​​the second light-emitting device 22, thereby improving the light-emitting efficiency of the first light-emitting device 21.

[0072] In some embodiments, please refer to Figure 1The display panel 100 includes a substrate 7 and a driving circuit layer 1. The driving circuit layer 1 is disposed on the substrate 7, and the light-emitting device layer 2 is disposed on the driving circuit layer 1. The driving circuit layer 1 includes a plurality of pixel driving circuits (not shown in the figure). The pixel driving circuits are electrically connected to the corresponding light-emitting devices 20 to drive the light-emitting devices 20 to emit light.

[0073] In some embodiments, please refer to Figure 1 The light-emitting device layer 2 includes an anode layer 201, a pixel definition layer 202, a light-emitting layer 203, and a cathode layer 204, which are stacked sequentially on the driving circuit layer 1. The anode layer 201 includes multiple anodes, the pixel definition layer 202 has multiple pixel openings V3, and the light-emitting layer 203 is located in the corresponding pixel opening V3. The anode, the light-emitting layer 203, and the cathode layer 204 constitute the light-emitting device 20.

[0074] In some embodiments, such as Figure 1 As shown, the aperture of the pixel opening V3 is smaller than the aperture of the corresponding opening V, which can prevent the color filter layer 3 from blocking the pixel opening V3 and causing a decrease in the light emission efficiency of the display panel.

[0075] In some embodiments, the pixel definition layer 202 is made of a transparent organic material or a black organic material. The black organic material can prevent lateral light leakage from adjacent light-emitting devices.

[0076] In some embodiments, the pixel definition layer 202 includes a first sub-pixel definition layer and a second sub-pixel definition layer disposed on the first sub-pixel definition layer. The material of the first sub-pixel definition layer is a black organic material, that is, the first sub-pixel definition layer is a black pixel definition layer, and the material of the second sub-pixel definition layer is a transparent organic material.

[0077] In some embodiments, please refer to Figure 1 The display panel 100 also includes an encapsulation layer 5, which is disposed on the light-emitting device layer 2. The encapsulation layer 5 is a thin-film encapsulation structure formed by stacking inorganic encapsulation layers and organic encapsulation layers, which can improve the encapsulation performance of the display panel 100.

[0078] Please see Figure 3 , Figure 3 A schematic diagram of the film layer structure of a second type of display panel provided in an embodiment of this application, the structure of which is similar to... Figure 1 The structures of the display panels shown are roughly the same, except that the display panel 100 also includes a touch layer 6, which is disposed on the encapsulation layer 5, and the color filter layer 3 is disposed on the touch layer 6.

[0079] In some embodiments, the touch layer 6 includes at least one touch metal layer. By disposing a color filter layer 3 on the touch layer 6, the three sub-filter layers of the color filter layer 3 stacked sequentially and of different colors can block the metal film layer in the touch layer 6, thereby reducing the reflectivity of the display panel.

[0080] In some embodiments, please refer to Figure 4 , Figure 4 A schematic diagram of the film layer structure of a third type of display panel provided in the embodiments of this application, the structure of which is similar to... Figure 1 The structures of the display panels shown are roughly the same, except that the display panel 100 also includes a planarization layer 4, which is disposed on the color filter layer 3. The planarization layer 4 can fill the openings formed on the color filter layer 3 and form a flat surface on the side of the planarization layer 4 away from the color filter layer 3, so as to provide a flat terrain for subsequent film layer bonding.

[0081] In some embodiments, the material of the planarization layer 4 is a transparent organic material.

[0082] Based on the display panel provided in the above embodiments of this application, embodiments of this application also provide a display device. Please refer to [link to relevant documentation]. Figure 5 , Figure 5 This is a schematic diagram of a display device provided in an embodiment of this application. The display device 1000 includes a display panel 100 and a housing 200, with the display panel 100 disposed on the housing 200. The display panel 100 can be any of the display panels provided in the above embodiments. The display device provided in the embodiments of this application can achieve the same technical effects as the display panels provided in any of the above embodiments, and will not be described in detail here.

[0083] The beneficial effects of the embodiments of this application are as follows: The embodiments of this application provide a display panel and a display device. The display panel includes a light-emitting device layer and a color filter layer. The light-emitting device layer includes a plurality of light-emitting devices. The color filter layer is disposed on the light-emitting device layer and includes three sub-filter layers stacked in sequence and having different colors. The light emission color of the light-emitting device is different from the color of two of the sub-filter layers. The portions of the two sub-filter layers with different light emission colors from the light-emitting device corresponding to the light-emitting device are provided with openings. A color filter layer is formed by sequentially stacking three sub-filter layers of different colors. These three layers can block light in non-emitting areas, preventing light leakage from the display panel and absorbing ambient light entering the panel, thus reducing its reflectivity. Openings are created in the two sub-filter layers (different colors from the light-emitting device) corresponding to the light-emitting device. These openings allow light emitted from the device to pass through, ensuring the display panel's luminous efficiency and color purity. The surrounding sub-filter layers (different colors from the light-emitting device) absorb some of the large-angle light emitted by the device. This not only prevents lateral light leakage between adjacent light-emitting devices, thus avoiding color mixing, but also reduces the attenuation of light emitted from the device at wide viewing angles, thereby improving color shift at wide viewing angles.

[0084] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0085] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0086] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0087] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display panel, characterized in that, The display panel also includes: The light-emitting device layer includes multiple light-emitting devices; A color filter layer is disposed on the light-emitting device layer; The color filter layer includes three sub-filter layers stacked sequentially and each having a different color. The light emission color of the light-emitting device is different from the color of two of the sub-filter layers. The portions of the two sub-filter layers with different light emission colors from the light-emitting device corresponding to the light-emitting device are provided with openings.

2. The display panel as described in claim 1, characterized in that, The two sub-filter layers, which have different light emission colors from the light-emitting device, are respectively provided with a first hole and a second hole corresponding to the portion of the light-emitting device. The aperture of the first hole is different from the aperture of the corresponding second hole.

3. The display panel as described in claim 2, characterized in that, The second hole is located on the side of the first hole away from the light-emitting device layer, and the diameter of the first hole is smaller than the diameter of the second hole.

4. The display panel as described in claim 3, characterized in that, The apertures of the first hole and the second hole gradually increase along the light emission direction of the light-emitting device, and the radial distance between the bottom of the hole wall of the first hole and the top of the hole wall of the second hole is set as the aperture difference. The plurality of light-emitting devices include a first light-emitting device, a second light-emitting device, and a third light-emitting device with different light-emitting colors, wherein at least two corresponding aperture differences among the first light-emitting device, the second light-emitting device, and the third light-emitting device are different.

5. The display panel as described in claim 4, characterized in that, The three sub-filter layers include a first sub-filter layer, a second sub-filter layer, and a third sub-filter layer, which are stacked sequentially on the light-emitting device layer and have different colors. The plurality of first holes include a first sub-hole and a second sub-hole disposed on the first sub-filter layer. The first sub-hole and the second sub-hole are respectively aligned with the second light-emitting device and the third light-emitting device. The second sub-filter layer fills the first sub-hole, and the third sub-filter layer fills the second sub-hole.

6. The display panel as described in claim 5, characterized in that, The second sub-filter layer is continuously disposed in the first sub-aperture and around the first sub-aperture, and the third sub-filter layer is continuously disposed in the second sub-aperture and around the second sub-aperture.

7. The display panel as described in claim 5, characterized in that, The thickness of the first sub-filter layer is less than the thickness of the second sub-filter layer in the first sub-aperture, and the thickness of the first sub-filter layer is less than the thickness of the third sub-filter layer in the second sub-aperture.

8. The display panel as described in claim 5, characterized in that, The diameter of the first sub-hole is different from the diameter of the second sub-hole.

9. The display panel as described in claim 5, characterized in that, The plurality of first holes include third sub-holes, and the plurality of second holes include fourth sub-holes, wherein the third sub-holes and the fourth sub-holes are disposed on the second sub-filter layer; The third sub-hole is aligned with the first light-emitting device, the fourth sub-hole is aligned with the second sub-hole, the diameter of the fourth sub-hole is larger than the diameter of the second sub-hole, and the third sub-filter layer is continuously disposed around the third sub-hole, on the wall of the third sub-hole, and in the second sub-hole.

10. The display panel as claimed in claim 9, characterized in that, The diameter of the third sub-hole is different from that of the fourth sub-hole.

11. The display panel as claimed in claim 9, characterized in that, The plurality of second holes include a fifth sub-hole and a sixth sub-hole, the fifth sub-hole and the sixth sub-hole being disposed in the third sub-filter layer; The fifth sub-hole is aligned with the third sub-hole, and the sixth sub-hole is aligned with the first sub-hole. The diameter of the fifth sub-hole is smaller than that of the third sub-hole, and the diameter of the sixth sub-hole is smaller than that of the first sub-hole.

12. The display panel as claimed in claim 11, characterized in that, The diameter of the fifth sub-hole is different from that of the sixth sub-hole.

13. The display panel as described in any one of claims 1 to 12, characterized in that, The display panel further includes a planarization layer disposed on the color filter layer.

14. The display panel as described in any one of claims 1 to 12, characterized in that, The light-emitting device layer includes a pixel definition layer, which has multiple pixel openings, the aperture of which is smaller than the aperture of the corresponding opening.

15. The display panel as claimed in any one of claims 1 to 12, characterized in that, The display panel includes: An encapsulation layer is disposed on the light-emitting device layer; A touch layer is disposed on the encapsulation layer, and a color filter layer is disposed on the touch layer.

16. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 15.

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