Display panel, manufacturing method thereof and display device

Abstract

Embodiments of the present specification provide a display panel, a manufacturing method thereof and a display device. The display panel comprises a substrate, a display layer, a color resistance layer and an encapsulation layer. The display layer is arranged on one side of the substrate. The encapsulation layer is arranged on a side of the display layer away from the substrate. The color resistance layer is located in the encapsulation layer. The display layer comprises a plurality of light emitting devices. The color resistance layer comprises a light transmission area corresponding to the light emitting devices and a non-light transmission area arranged adjacent to the light transmission area. The light transmission area comprises a light filtering layer. The color of the light filtering layer is the same as the light emitting color of the corresponding light emitting device. The non-light transmission area comprises at least a first sub-layer and a second sub-layer arranged in a stack. The first sub-layer comprises a first sub-color resistance layer, and the second sub-layer comprises a second sub-color resistance layer. The colors of the first sub-color resistance layer and the second sub-color resistance layer are both different from the color of the light filtering layer in the light transmission area. Through the above technical method, light crosstalk is reduced.

Description

Technical Field

[0001] The embodiments in this specification relate to the display field, specifically to a display panel, its manufacturing method, and a display device. Background Technology

[0002] With the development of science and technology, various electronic products have become an indispensable part of our lives, playing a vital role in all aspects of people's work, study, communication, and daily life. As products continue to iterate and develop, people's demands for the performance of electronic products are gradually increasing. Specifically, for example, people require electronic products to have high brightness and low power consumption.

[0003] Currently, this requirement is generally met through color filter on encapsulation (COE) technology. COE structures can effectively improve the transmittance of display panels, reduce the power consumption of light-emitting devices, and allow for thinner display panels. However, COE structure display panels also have some display defects, specifically, color shift issues. Addressing these display defects has become a key research focus driving its development. Summary of the Invention

[0004] In view of this, several embodiments of this specification aim to provide a display panel, a method for manufacturing the same, and a display device, so as to reduce the color deviation of the display panel to a certain extent and further improve the display effect.

[0005] To achieve the above objectives, one embodiment of this specification provides a display panel, the display panel including a substrate, a display layer, a color resist layer, and an encapsulation layer; wherein, the display layer is disposed on one side of the substrate; the encapsulation layer is disposed on the side of the display layer away from the substrate; the color resist layer is located within the encapsulation layer; wherein, the display layer includes a plurality of light-emitting devices; the color resist layer includes a light-transmitting area corresponding to the light-emitting device and an opaque area disposed adjacent to the light-transmitting area; the light-transmitting area includes a filter layer; wherein, the color of the filter layer is the same as the emission color of the corresponding light-emitting device; the opaque area includes at least a first sub-layer and a second sub-layer stacked thereon, the first sub-layer including a first sub-color resist layer, and the second sub-layer including a second sub-color resist layer; wherein, the colors of the first sub-color resist layer and the second sub-color resist layer are both different from the color of the filter layer in the light-transmitting area.

[0006] One embodiment of this specification provides a method for manufacturing a display panel, the method comprising: providing a substrate; disposing a display layer on one side of the substrate; wherein the display layer includes a plurality of light-emitting devices; forming an encapsulation layer on the display layer; and forming a colored resist layer during the formation of the encapsulation layer; the colored resist layer includes a light-transmitting area corresponding to the light-emitting device and an opaque area disposed adjacent to the light-transmitting area; the light-transmitting area includes a filter layer; wherein the color of the filter layer is the same as the light-emitting color of the light-emitting device; the opaque area includes at least a first sub-layer and a second sub-layer stacked thereon, the first sub-layer including a first sub-colored resist layer, and the second sub-layer including a second sub-colored resist layer; wherein the colors of the first sub-colored resist layer and the second sub-colored resist layer are both different from the color of the filter layer in the light-transmitting area.

[0007] One embodiment of this specification provides a display device, the display device comprising any of the display panels described above or a display panel prepared by the manufacturing method described above.

[0008] Compared with related technologies, the display panel provided in this specification has the following advantages: it adopts an opaque area formed by at least two color sub-color resist layers stacked together, and the color resist layer with the opaque area is set as a whole in the encapsulation area, so that the distance between the color resist layer and the display layer is small, making it easier for light emitted from a wide viewing angle to be absorbed by the opaque area, thereby preventing the light emitted by the light-emitting device from entering the light-transmitting area of ​​different colors and reducing the crosstalk between different colors of light. Attached Figure Description

[0009] The accompanying drawings are provided to further illustrate the embodiments of the specification and form part of the specification. They are used together with the following detailed description to explain this specification, but do not constitute a limitation on the embodiments of this specification. In the accompanying drawings...

[0010] Figure 1 This is a cross-sectional structural diagram of a display panel provided for one embodiment of this specification.

[0011] Figure 2 This is a top view of a display panel provided as an embodiment of the present specification.

[0012] Figure 3 This is a cross-sectional structural diagram of a display panel provided for one embodiment of this specification.

[0013] Figure 4 This is a cross-sectional structural diagram of a display panel provided for one embodiment of this specification.

[0014] Figure 5 This is a schematic diagram illustrating the manufacturing process of a display panel, provided as an embodiment of this specification. Detailed Implementation

[0015] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of this specification 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 specification, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this specification without creative effort are within the scope of protection of this application.

[0016] It should be noted that in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0017] The features and embodiments of various aspects of this specification will now be described in detail. Furthermore, the features, structures, or characteristics described herein may be combined in any suitable manner in one or more embodiments.

[0018] Please see Figure 1One embodiment of this specification provides a display panel 10, which may include a substrate 110, a display layer 120, a color resist layer 130, and an encapsulation layer 140; wherein the display layer 120 is disposed on one side of the substrate 110; the encapsulation layer 140 is disposed on the side of the display layer 120 away from the substrate 110; and the color resist layer 130 is located within the encapsulation layer 140. The display layer 120 may include a plurality of light-emitting devices 121; the color resist layer 130 may include a light-transmitting area 131 corresponding to the light-emitting device 121 and an opaque area 132 adjacent to the light-transmitting area 131; the light-transmitting area 131 may include a filter layer 1311; wherein the color of the filter layer 1311 is the same as the light-emitting color of the corresponding light-emitting device 121; the opaque area 132 includes at least a first sub-layer and a second sub-layer stacked thereon, the first sub-layer including a first sub-color resist layer 1321, the second sub-layer including a second sub-color resist layer 1322, and the colors of the first sub-color resist layer 1321 and the second sub-color resist layer 1322 are both different from the color of the filter layer 1311 in the light-transmitting area 131.

[0019] In related technologies, the light emitted by the light-emitting device 121 has a certain range. Most of this light enters the light-transmitting area corresponding to the light-emitting device. However, some light with a wide viewing angle may enter the light-transmitting area 131, which has a different light emission color than that of the light-emitting device 121, causing light crosstalk. To solve this problem, the color resist layer 130 can be placed inside the encapsulation layer 140. Since the encapsulation layer 140 is adjacent to the display layer 120, the distance between the display layer 120 and the color resist layer 130 is reduced. This makes it easier for the wide-viewing light emitted from the light-transmitting area 131 to be absorbed by the opaque area 132, thereby preventing the wide-viewing light emitted by the light-emitting device 121 from entering the light-transmitting area 131 of a different color. This reduces crosstalk between different colors of light and improves the display effect of the display panel 10.

[0020] Please see Figure 1 and Figure 2In this embodiment, the display panel 10 may include multiple pixel units, which can be arranged in an array to form the display area 20 of the display panel 10. Each pixel unit may include multiple sub-pixels 211. Each sub-pixel 211 may include a light-emitting device 121 and a pixel driving circuit for driving the light-emitting device 121. One light-emitting device 121 corresponds to one sub-pixel 211, so that the light-emitting device 121 serves as the light source for the corresponding sub-pixel 211. Each sub-pixel 211 can display a single color. Specifically, for example, the pixel unit may include red sub-pixels, blue sub-pixels, and green sub-pixels. The red sub-pixel may include a red light-emitting device to display red; the green sub-pixel may include a green light-emitting device to display green; and the blue sub-pixel may include a blue light-emitting device to display blue. The brightness (grayscale) of the sub-pixels 211 of different colors in the pixel unit can be adjusted. By combining and superimposing colors, multiple colors can be displayed, thereby achieving full-color display of the display panel.

[0021] Please see Figure 3 In some embodiments, the substrate 110 may include a substrate 111, which can support other layers of the display panel 10. The substrate 111 can be a rigid substrate. Specifically, for example, the rigid substrate can be a glass substrate, a PMMA (Polymethyl methacrylate) substrate, a silicon substrate, etc. The substrate 111 can also be a flexible substrate. Specifically, for example, the substrate 111 can be a PET (Polyethylene terephthalate) substrate, a PEN (Polyethylenenaphthalate dimethyl methacrylate) substrate, or a PI (Polyimide) substrate, etc. The display panel 10 can be a flexible display panel or a rigid display panel.

[0022] Please see Figure 3 In some embodiments, the substrate 110 of the display panel 10 may further include an array layer 112. The array layer 112 is disposed between the substrate 111 and the display layer 120. The array layer 112 may include a pixel driving circuit, which may include a plurality of TFT elements 1121. Each light-emitting device 121 is electrically connected to the pixel driving circuit formed by at least one TFT element 1121, driving the light-emitting device 121 to operate. For example, it may be a 2T1C, 7T1C, 6T2C, etc., in the related art.

[0023] In this embodiment, the display layer 120 is disposed on the side of the array layer 112 away from the substrate 111, and the display layer 120 may include a plurality of light-emitting devices 121. The light-emitting devices 121 may be OLEDs or quantum dot organic light-emitting diodes (QLEDs), etc.

[0024] Taking an OLED as an example, along the direction away from the substrate 110, the light-emitting device 121 may include a first electrode 1211, a light-emitting layer 1212, and a second electrode 1213 stacked sequentially. Specifically, for example, the first electrode 1211 can serve as an anode, and the second electrode 1213 can serve as a cathode. The anode 1211 is electrically connected to the TFT element 1121 so that the pixel driving circuit can drive the light-emitting device 121 to emit light. The structure of the anode can be a composite structure composed of a transparent conductive oxide film / metal film / transparent conductive oxide film stacked sequentially. The structure of the anode can also be a single-layer structure. The individual cathodes can be electrically connected to each other, forming a single unit. Specifically, the cathode material can be any one of aluminum (Al), silver (Ag), and magnesium (Mg), or any one of magnesium-silver alloy and aluminum-lithium alloy.

[0025] In this embodiment, the encapsulation layer 140 is disposed on the side of the display layer 120 away from the substrate 110 to protect the light-emitting device 121 and prevent moisture from damaging the light-emitting device 121. The encapsulation layer 140 can be an inorganic encapsulation layer or a combination of an organic encapsulation layer and an inorganic encapsulation layer.

[0026] Please see Figure 1 In this embodiment, by placing the color resist layer 130 within the encapsulation layer 140, the distance between the color resist layer 130 and the light-emitting device 121 in the display layer 120 is reduced. This allows the opaque area 132 of the color resist layer 130 to better absorb the wide-viewing-angle light emitted by the light-emitting device 121, thereby reducing light crosstalk between sub-pixels 211. Furthermore, since the color resist layer 130 is placed within the encapsulation layer 140, the brightness attenuation over wide viewing angles is effectively reduced.

[0027] In some embodiments, the encapsulation layer 140 may include a first inorganic encapsulation layer 141 and an organic encapsulation layer 142. The first inorganic encapsulation layer 141 is adjacent to the display layer 120, and the color resist layer 130 may be located between the first inorganic encapsulation layer 141 and the organic encapsulation layer 142. The first inorganic encapsulation layer 141 can isolate water and oxygen, preventing external moisture and oxygen from affecting the light-emitting device 121. The organic encapsulation layer 142 may have a certain degree of flexibility, which can improve the overall flexibility to a certain extent. In some embodiments, the encapsulation layer 140 may include a first inorganic encapsulation layer 141 and a second inorganic encapsulation layer 143, and the color resist layer 130 is located between the first inorganic encapsulation layer 141 and the second inorganic encapsulation layer 143. In some embodiments, the encapsulation layer 140 may include a first inorganic encapsulation layer 141, an organic encapsulation layer 142, and a second inorganic encapsulation layer 143. The color resist layer 130 can be disposed between the first inorganic encapsulation layer 141 and the organic encapsulation layer 142, or the color resist layer 130 can also be disposed between the organic encapsulation layer 142 and the second inorganic encapsulation layer 143. It is understood that the organic encapsulation layer 142 can have a certain degree of flexibility and can cover the surface of the color resist layer 130.

[0028] The color resist layer 130 may include a light-transmitting area 131 and an opaque area 132. The light-transmitting area 131 corresponds to the light-emitting device 121 in the stacking direction of the display panel 10, allowing light emitted by the light-emitting device 121 to exit through the corresponding light-transmitting area 131. The light-transmitting area 131 may include a color filter layer 1311, the color of which corresponds to the color of the light emitted by the light-emitting device 121. The color filter layer 1311 allows light of the corresponding color to pass through.

[0029] In some embodiments, the distance between the upper surface of the opaque region 132 and the substrate 110 is greater than the distance between the upper surface of the translucent region 131 and the substrate 110. It can be understood that, along the light emission direction of the display panel 10, the opaque region 132 is further away from the light-emitting device 121 than the translucent region 131, so that some light rays with a wide viewing angle can be absorbed by the adjacent opaque region 132 after passing through the translucent region 131.

[0030] The orthographic projection of the filter layer 1311 on the substrate 110 overlaps with the orthographic projection of the light-emitting device 121 on the substrate 110. In one specific embodiment, the orthographic projection of the filter layer 1311 on the substrate 110 covers the orthographic projection of the light-emitting device 121 on the substrate 110. This allows more light emitted by the light-emitting device 121 to pass through the corresponding filter layer 1311.

[0031] Specifically, for example, if the light-emitting device 121 emits blue light, the color of the filter layer 1311 corresponding to the blue light-emitting device 121 is blue, that is, the filter layer 1311 allows blue light to pass through; if the light-emitting device 121 emits green light, the color of the filter layer 1311 corresponding to the green light-emitting device 121 is green, that is, the filter layer 1311 allows green light to pass through; if the light-emitting device 121 emits red light, the color of the filter layer 1311 corresponding to the red light-emitting device 121 is red, that is, the filter layer 1311 allows red light to pass through.

[0032] Since the light-emitting devices 121 are spaced apart, the opaque area 132 and the light-transmitting area 131 are arranged adjacent to each other. The opaque area 132 is directly opposite the area between the light-emitting devices 121 in the stacking direction of the display panel 10, that is, the orthographic projection of the opaque area 132 on the substrate 110 does not overlap with the orthographic projection of the light-emitting device 121 on the substrate 110.

[0033] The opaque region 132 may have a first sub-layer and a second sub-layer stacked on top of each other, and the color of the filter layer 1311 may be different from the color of the adjacent sub-color resist layer through the proper arrangement of the sub-color resist layers in the first and second sub-layers. The sub-color resist layer may include a first sub-color resist layer 1321 and a second sub-color resist layer 1322. In some embodiments, the sub-color resist layer may also include a third sub-color resist layer 1323.

[0034] The opaque region 132 may include at least a first sub-color resist layer 1321 and a second sub-color resist layer 1322 stacked together. The colors of the first sub-color resist layer 1321 and the second sub-color resist layer 1322 in the opaque region 132 are different from the color of the filter layer 1311 in the adjacent transparent region 131. Thus, wide-viewing-angle light emitted by the light-emitting device 121 corresponding to the transparent region 131 will be absorbed by the adjacent opaque region 132. Specifically, for example, if the light-emitting device 121 emits blue light, the color of the filter layer 1311 corresponding to the blue-emitting light-emitting device 121 is blue, the color of the first sub-color resist layer 1321 is red, and the color of the second sub-color resist layer 1322 is green; if the light-emitting device 121 emits green light, the color of the filter layer 1311 corresponding to the green-emitting light-emitting device 121 is green, the color of the first sub-color resist layer 1321 is blue, and the color of the second sub-color resist layer 1322 is red; if the light-emitting device 121 emits red light, the color of the filter layer 1311 corresponding to the red-emitting light-emitting device 121 is red, the color of the first sub-color resist layer 1321 is blue, and the color of the second sub-color resist layer 1322 is green.

[0035] In some embodiments, the opaque region 132 may further include a third sub-color resist layer 1323. The color of the third sub-color resist layer 1323 is the same as the color of the filter layer 1311. The third sub-color resist layer 1323 is disposed in the same layer as at least one of the first sub-color resist layer 1321 and the second sub-color resist layer 1322, and the first sub-color resist layer 1321 or the second sub-color resist layer 1322 is located between the third sub-color resist layer 1323 and the filter layer 1311.

[0036] Specifically, the first sub-color resist layer 1321 and the third sub-color resist layer 1323 can be disposed on the same layer as the first sub-layer, and both are stacked on the second sub-color resist layer 1322, which serves as the second sub-layer. For example, the first sub-color resist layer 1321 may be red, the second sub-color resist layer 1322 green, the third sub-color resist layer 1323 blue, and the filter layer 1311 blue. Alternatively, the second sub-color resist layer 1322 and the third sub-color resist layer 1323 can be disposed on the same layer as the second sub-layer, and both are stacked on the first sub-color resist layer 1321, which serves as the first sub-layer. In this case, the third sub-color resist layer 1323 and the filter layer 1311 are not adjacent.

[0037] In some embodiments, the opaque region 132 may optionally include a third sub-color resist layer 1323. The color of the third sub-color resist layer 1323 is the same as the color of the filter layer 1311. At least one of the first sub-layer and the second sub-layer is provided with a first sub-color resist layer 1321, a second sub-color resist layer 1322 and a third sub-color resist layer 1323, and the first sub-color resist layer 1321 and / or the second sub-color resist layer 1322 are provided between the third sub-color resist layer 1323 and the filter layer 1311.

[0038] By using at least one of the first and second sub-layers, including three sub-color blocking layers such as the first sub-color blocking layer 1321, the second sub-color blocking layer 1322, and the third sub-color blocking layer 1323, more comprehensive light absorption for a wide viewing angle can be achieved.

[0039] For example, a second sublayer is stacked on top of a first sublayer. The second sublayer includes a first sub-color resist layer 1321, a second sub-color resist layer 1322, and a third sub-color resist layer 1323. The color of the filter layer 1311 is green, the color of the first sub-color resist layer 1321 is red, the color of the second sub-color resist layer 1322 is blue, and the color of the third sub-color resist layer 1323 is green. At this point, in the second sub-layer, along the direction away from the filter layer 1311, the arrangement order can be: first sub-color resist layer 1321, second sub-color resist layer 1322, and third sub-color resist layer 1323; alternatively, the arrangement order can be: first sub-color resist layer 1321, third sub-color resist layer 1323, and second sub-color resist layer 1322; alternatively, the arrangement order can be: second sub-color resist layer 1322, first sub-color resist layer 1321, and third sub-color resist layer 1323; alternatively, the arrangement order can be: second sub-color resist layer 1322, third sub-color resist layer 1323, and first sub-color resist layer 1321. Similarly, the first sub-layer can also be described as described above, and will not be repeated here. Of course, the arrangement order in the first and second sub-layers can be reasonably set so that the colors of the sub-color resist layers adjacent to the same filter layer in the first and second sub-layers are different.

[0040] In some embodiments, the sub-color resist layer with the same color as the filter layer 1311 is made of the same material. Specifically, there are multiple filter layers 1311, and different filter layers 1311 can be set to different colors according to actual needs. Specifically, corresponding to the emission color of the corresponding light-emitting device 121, the filter layer 1311 can be divided into red, blue, and green. Correspondingly, the sub-color resist layer (including the first sub-color resist layer, the second sub-color resist layer, and the third sub-color resist layer) can also be divided into red, blue, and green. Filter layers 1311 and sub-color resist layers of the same color can be made of the same material, which can reduce the manufacturing difficulty to a certain extent.

[0041] Please see Figure 1 In some embodiments, the display layer 120 may further include a pixel definition layer 122 and a pixel opening 123; the light-emitting device 121 and the pixel opening 123 are disposed corresponding to each other; the orthographic projection of the pixel opening 123 on the substrate 110 is within the orthographic projection of the light-transmitting area 131 on the substrate 110.

[0042] In this embodiment, the pixel definition layer 122 defines a plurality of pixel openings 123, and each pixel opening 123 corresponds to a light-emitting device 121. Specifically, a light-emitting device 121 is located within a pixel opening 123, and the pixel definition layer 122 can be used to divide the sub-pixel 211 region. For example, the pixel definition layer 122 can be black.

[0043] In this embodiment, the orthographic projection of the pixel opening 123 on the substrate 110 is within the orthographic projection of the light-transmitting area 131 on the substrate 110, so that the orthographic projection of the light-emitting device 121 located in the pixel opening 123 on the substrate 110 is within the orthographic projection of the light-transmitting area 131 on the substrate 110.

[0044] In some embodiments, since the opaque area 132 can effectively absorb light that may cause crosstalk between different sub-pixels 211, the opaque area 220 can be used to separate the sub-pixels 211 of the display panel 10, ensuring that the colors of the sub-pixels 211 do not interfere with each other. Therefore, the function of the black pixel definition layer 122 can be replaced by the opaque area 132 of the color resist layer 130. In some embodiments, it is not necessary to additionally fabricate the black pixel definition layer 122. Of course, in some embodiments, the structure of the pixel definition layer 122 can be retained, and a light-transmitting material that is relatively easy to manufacture can be used. Specifically, for example, the pixel definition layer 122 can be made of yellow glue.

[0045] Please see Figure 1 and Figure 2 In some embodiments, the distance between the first edge of the orthographic projection of the light-transmitting area 131 on the substrate 110 and the second edge of the orthographic projection of the pixel opening 123 on the substrate can be in the range of 1 μm to 8 μm.

[0046] In this embodiment, the orthographic projections of the light-transmitting area 131 and the pixel opening 123 onto the substrate 110 can be regular shapes. Specifically, for example, the shape can be circular, rectangular, or polygonal. The orthographic projection of the light-transmitting area 131 onto the substrate 110 can include a first edge, and the orthographic projection of the pixel opening 123 onto the substrate can include a second edge. The distance between the first edge and the second edge ranges from 1μm to 8μm, so that the range of light transmitted through the light-transmitting area 131 by the light-emitting device 121 meets the display area requirements of the sub-pixel 211. It also allows the opaque area 132 to effectively absorb light emitted by the light-emitting device 121 that may be incident on the display area of ​​adjacent sub-pixels 211, thereby improving the display effect. Specifically, for example, if the distance between the first edge and the second edge is greater than or equal to 1μm, it can avoid the light range emitted by the light-emitting device 121 from the light-transmitting area 131 being too small due to the distance between the first edge and the second edge, which would affect the display effect of the display panel 10. The distance between the first edge and the second edge is less than or equal to 8 μm, which can prevent the light-transmitting area 131 from being too large, thereby avoiding crosstalk between adjacent sub-pixels 211 and improving the display effect. In some specific embodiments, the distance between the first edge and the second edge can be in the range of 1 μm, 1.5 μm, 2.3 μm...6.6 μm, 7.4 μm, 8 μm.

[0047] In some embodiments, the distance between the upper and lower surfaces of the opaque area 132 is a first distance, and the distance between the upper and lower surfaces of the translucent area 131 is a second distance. The first distance is greater than the second distance.

[0048] In this embodiment, the first distance can be considered as the thickness of the opaque area 132, and the second distance can be considered as the thickness of the translucent area 131. The thickness of the opaque area 132 is greater than the thickness of the translucent area 131, which can absorb light emitted from the translucent area 131 that may be absorbed into the adjacent sub-pixel 211 area within a certain range. In some embodiments, the first distance of the opaque area can range from 3 μm to 9 μm.

[0049] In some embodiments, the filter layer is a blue filter layer, and correspondingly, the value of the second distance can range from 1.5 μm to 2 μm.

[0050] In this embodiment, the thickness of the blue filter layer in the light-transmitting area 131 can range from 1.5 μm to 2 μm, thereby improving the transmittance of the blue light emitted by the light-emitting device 121 through the light-transmitting area 131. Of course, the thickness range of the blue filter layer made of different materials can be different.

[0051] In some embodiments, the filter layer is a red filter layer, and correspondingly, the value of the second distance can range from 2μm to 2.7μm.

[0052] In this embodiment, the thickness of the red filter layer in the light-transmitting area 131 can range from 2 μm to 2.7 μm, thereby improving the transmittance of the red light emitted by the light-emitting device 121 through the light-transmitting area 131. Of course, the thickness range of the red filter layer made of different materials can be different.

[0053] In some embodiments, the filter layer is a green filter layer, and correspondingly, the value of the second distance can range from 2μm to 2.7μm.

[0054] In this embodiment, the thickness of the green filter layer in the light-transmitting area 131 ranges from 2 μm to 2.7 μm, thereby improving the transmittance of the green light emitted by the light-emitting device 121 through the light-transmitting area 131. Of course, the thickness range of the green filter layer made of different materials can be different.

[0055] In some embodiments, the average distance between the upper and lower surfaces of the encapsulation layer 140 ranges from 11 μm to 15 μm.

[0056] In this embodiment, to isolate impurities such as water vapor and oxygen, and to ensure that the propagation of light through the light-transmitting area 131 is not significantly affected, a colored resist layer 130 is further provided in the encapsulation layer 140. This results in the average distance between the upper and lower surfaces of the encapsulation layer 140 ranging from 11 μm to 15 μm. In this embodiment, the lower surface of the encapsulation layer 140 may be uneven; therefore, the average distance between the upper and lower surfaces can be used to characterize the overall thickness of the encapsulation layer 140. In some embodiments, the average distance between the upper and lower surfaces of the first inorganic encapsulation layer 141 can range from 0.5 μm to 1.5 μm. The average distance between the upper and lower surfaces of the second inorganic encapsulation layer 143 can range from 0.5 μm to 1.5 μm. The average distance between the upper and lower surfaces of the organic encapsulation layer 142 ranges from 7 μm to 11 μm. Specifically, for example, when the overall thickness of the encapsulation layer 140 is less than 11 μm, the encapsulation effect may not be very good; when the overall thickness of the encapsulation layer 140 is greater than 15 μm, it may affect the emission of light. In some embodiments, the average distance between the upper and lower surfaces of the first inorganic encapsulation layer 141 and the second inorganic encapsulation layer 143 can be the same. When the average distance between the upper and lower surfaces of the organic encapsulation layer 142 is in the range of 7 μm to 11 μm, the organic encapsulation layer 140 can better improve the structural stability of the display panel 10.

[0057] Please see Figure 4 In some embodiments, the display panel 10 may further include a touch layer 160 disposed on the side of the encapsulation layer 140 away from the substrate 110.

[0058] In this embodiment, the display panel 10 may further include a touch layer 160, which is disposed on the side of the encapsulation layer 140 away from the substrate 110, thereby improving the sensitivity of the touch layer 160 in responding to touches from a hand or other object on the display panel 10. Specifically, for example, the foreign object may be a stylus.

[0059] Please see Figure 4 In some embodiments, the display panel 10 further includes a light-shielding layer 170 having a plurality of black matrices 171; the touch layer 160 may include a plurality of touch electrodes 161; wherein the orthographic projection of the touch electrodes 161 on the substrate 110 is within the orthographic projection of the black matrices 171 on the substrate 110.

[0060] In this embodiment, the touch layer 160 may include a plurality of touch electrodes 161, which may be formed of metal wires. When ambient light shines on the touch electrode 161, the touch electrode 161 reflects the light, and the reflected light responds to the display effect of the display panel 10. To prevent the touch electrode 161 from responding to the display effect with the reflected light, the light-shielding layer 170 is provided on the side of the touch layer 160 away from the substrate 110. The orthographic projection of the touch electrode 161 on the substrate 110 is within the orthographic projection of the black matrix 171 on the substrate 110. The black matrix 171 can effectively block the touch electrode 161, reduce the reflected light from the touch electrode 161, and improve the display effect of the display panel 10. It is understood that those skilled in the art will know that the touch layer 160 also has some necessary circuits, such as touch wiring, which will not be described in detail here.

[0061] Please see Figure 5 One embodiment of this specification provides a method for manufacturing a display panel, the method comprising the following steps.

[0062] Step S110: Provide a substrate.

[0063] Step S120: A display layer is disposed on one side of the substrate; wherein the display layer includes a plurality of light-emitting devices.

[0064] Step S130: Form an encapsulation layer on the display layer.

[0065] Step S140: During the formation of the inorganic encapsulation layer, a colored resist layer is formed; the colored resist layer includes a light-transmitting area corresponding to the light-emitting device and an opaque area adjacent to the light-transmitting area; the light-transmitting area includes a filter layer; wherein the color of the filter layer is the same as the light-emitting color of the corresponding light-emitting device; the opaque area includes at least a first sub-layer and a second sub-layer stacked together, the first sub-layer including a first sub-colored resist layer, and the second sub-layer including a second sub-colored resist layer; wherein the colors of the first sub-colored resist layer and the second sub-colored resist layer are both different from the color of the filter layer in the light-transmitting area. In other embodiments, the specific structural design of the colored resist layer can refer to the above embodiments, and will not be repeated here.

[0066] One embodiment of this specification provides a display device, which may include any of the display panels described above or a display panel prepared by the manufacturing method described above.

[0067] The various embodiments in this specification emphasize the parts that differ from other embodiments, and the embodiments can be explained by comparison with each other. Any combination of the various embodiments in this specification, based on general technical knowledge, is covered by the disclosure of this specification.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above description is only a part of the embodiments in this specification and is not intended to limit this specification. Any modifications or equivalent substitutions made within the spirit and principles of this specification should be included within the scope of disclosure of this specification.

Claims

1. A display panel, characterized in that, The display panel includes a substrate, a display layer, a color resist layer, and an encapsulation layer; The display layer is disposed on one side of the substrate; the encapsulation layer is disposed on the side of the display layer away from the substrate; and the color resist layer is located within the encapsulation layer. The display layer includes multiple light-emitting devices; the color resist layer includes a light-transmitting area corresponding to each light-emitting device and an opaque area adjacent to the light-transmitting area; the light-transmitting area includes a filter layer; wherein the color of the filter layer is the same as the emission color of the corresponding light-emitting device; the opaque area includes at least a first sub-layer and a second sub-layer stacked together, the first sub-layer including a first sub-color resist layer, and the second sub-layer including a second sub-color resist layer; wherein the colors of the first sub-color resist layer and the second sub-color resist layer are both different from the color of the filter layer in the light-transmitting area; The opaque area further includes a third sub-color resist layer, the color of which is the same as the color of the filter layer. The third sub-color resist layer is disposed in the same layer as at least one of the first sub-color resist layer and the second sub-color resist layer, and the first sub-color resist layer or the second sub-color resist layer is located between the third sub-color resist layer and the filter layer.

2. The display panel according to claim 1, characterized in that, The distance between the upper surface of the opaque area and the substrate is greater than the distance between the upper surface of the transparent area and the substrate.

3. The display panel according to claim 1, characterized in that, The orthogonal projection of the filter layer on the substrate covers the orthogonal projection of the light-emitting device on the substrate.

4. The display panel according to claim 1, characterized in that, At least one of the first sub-layer and the second sub-layer is provided with a first sub-color resist layer, a second sub-color resist layer and a third sub-color resist layer, and the first sub-color resist layer and / or the second sub-color resist layer are provided between the third sub-color resist layer and the filter layer.

5. The display panel according to claim 1, characterized in that, The sub-color resist layer, which has the same color as the filter layer, is made of the same material.

6. The display panel according to claim 1, characterized in that, The distance between the upper and lower surfaces of the opaque area is a first distance, and the distance between the upper and lower surfaces of the translucent area is a second distance, wherein the first distance is greater than the second distance.

7. The display panel according to claim 6, characterized in that, The first distance of the opaque area ranges from 3μm to 9μm.

8. The display panel according to claim 6, characterized in that, The filter layer is a blue filter layer, and the second distance ranges from 1.5μm to 2μm.

9. The display panel according to claim 6, characterized in that, The filter layer is a red filter layer, and the second distance ranges from 2μm to 2.7μm.

10. The display panel according to claim 6, characterized in that, The filter layer is a green filter layer, and the second distance ranges from 2μm to 2.7μm.

11. The display panel according to claim 1, characterized in that, The encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer stacked in phase. The first inorganic encapsulation layer is adjacent to the display layer, and the color resist layer is located between the first inorganic encapsulation layer and the organic encapsulation layer.

12. The display panel according to claim 11, characterized in that, The average distance between the upper and lower surfaces of the encapsulation layer ranges from 11 μm to 15 μm.

13. The display panel according to claim 11, characterized in that, The average distance between the upper and lower surfaces of the first inorganic encapsulation layer ranges from 0.5 μm to 1.5 μm.

14. The display panel according to claim 11, characterized in that, The average distance between the upper and lower surfaces of the second inorganic encapsulation layer ranges from 0.5 μm to 1.5 μm.

15. The display panel according to claim 11, characterized in that, The average distance between the upper and lower surfaces of the organic encapsulation layer ranges from 7 μm to 11 μm.

16. The display panel according to claim 1, characterized in that, The display panel also includes a touch layer disposed on the side of the encapsulation layer away from the substrate.

17. The display panel according to claim 16, characterized in that, The display panel further includes a light-shielding layer having multiple black matrices; the touch layer includes multiple touch electrodes, and the light-shielding layer is located on the side of the touch electrodes away from the substrate; wherein the orthogonal projection of the touch electrodes on the substrate is within the orthogonal projection of the black matrices on the substrate.

18. A method for manufacturing a display panel, characterized in that, The manufacturing method includes: Provide substrate; A display layer is disposed on one side of the substrate; wherein the display layer includes a plurality of light-emitting devices; An encapsulation layer is formed on the display layer; During the formation of the encapsulation layer, a colored resist layer is formed; the colored resist layer includes a light-transmitting area corresponding to the light-emitting device and an opaque area adjacent to the light-transmitting area; the light-transmitting area includes a filter layer; wherein the color of the filter layer is the same as the light-emitting color of the light-emitting device; the opaque area includes at least a first sub-layer and a second sub-layer stacked together, the first sub-layer including a first sub-colored resist layer, and the second sub-layer including a second sub-colored resist layer; wherein the colors of the first sub-colored resist layer and the second sub-colored resist layer are both different from the color of the filter layer in the light-transmitting area; the opaque area further includes a third sub-colored resist layer, the color of the third sub-colored resist layer is the same as the color of the filter layer, the third sub-colored resist layer is disposed in the same layer as at least one of the first sub-colored resist layer and the second sub-colored resist layer, and the first sub-colored resist layer or the second sub-colored resist layer is located between the third sub-colored resist layer and the filter layer.

19. A display device, characterized in that, The display device includes the display panel according to any one of claims 1 to 17 or the display panel prepared by the manufacturing method of claim 18.

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