Display panel and display device

Abstract

The utility model provides a display panel and a display device.The display panel comprises a display area and a non-display area arranged on the periphery of the display area, the display panel further comprises an array substrate, a light-emitting device layer, a color filter layer and an inorganic covering layer, the light-emitting device layer is arranged on one side of the array substrate, and the color filter layer is arranged on the other side of the array substrate; the color filter layer is arranged on the side, away from the array substrate, of the light emitting device layer and comprises a plurality of filter parts and shading parts, the filter parts are at least arranged in the display area, the shading parts are arranged in the display area and the non-display area, and the inorganic covering layer is additionally arranged on the side, close to the array substrate, of the color filter layer. The first inorganic covering part of the inorganic covering layer is arranged in the display area, the second inorganic covering part of the inorganic covering layer is arranged in the non-display area, the transmittance of the first inorganic covering part is larger than that of the second inorganic covering part, and the color difference of the display area and the non-display area of the display panel in the screen-off state can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronics, and in particular to a display panel and a display device. BACKGROUND

[0002] With the development of flat panel display technology, the stability requirement of display panel is gradually improved. In recent years, the organic light emitting diode (OLED) display panel develops rapidly in the world, and the organic light emitting diode display technology is also increasingly refined.

[0003] The display panel usually includes an array substrate, a counter substrate, and a frame glue between the array substrate and the counter substrate. Currently, the frame glue commonly used in the display panel includes white frame glue and transparent frame glue. If the white frame glue is used, the white frame glue can be seen from the front of the display panel, which affects the appearance. If the transparent frame glue is used, the metal trace arranged below the transparent frame glue will reflect the ambient light to some extent, which affects the user's visual experience. In order to improve the visual appearance and achieve the effect of narrow frame, black ink is usually applied to the four edges on the top of the outer side of the display panel, so that the display area and the non-display area of the display panel present an integrated black visual effect when the screen is off. However, since the black ink applied to the non-display area has a large color difference with the black matrix and the color filter layer of the display area, the difference between the display area and the non-display area can still be seen visually when the screen is off.

[0004] Therefore, it is necessary to provide a display panel and a display device to improve this defect. CONTENT OF THE INVENTION

[0005] Embodiments of the present application provide a display panel which can reduce the color difference between the display area and the non-display area of the display panel in the screen-off state.

[0006] In order to achieve the above-mentioned purpose, according to a first aspect of the present application, a display panel is provided, which includes a display area and a non-display area, the non-display area is arranged at the periphery of the display area, and the display panel further includes:

[0007] an array substrate;

[0008] a light emitting device layer arranged on one side of the array substrate;

[0009] a color filter layer arranged on a side of the light emitting device layer away from the array substrate, the color filter layer including a plurality of light filtering portions and light shielding portions; and

[0010] an inorganic cover layer arranged on a side of the color filter layer close to the array substrate;

[0011] The light filtering part is arranged at least in the display area, the light shielding part is arranged in the display area and the non-display area, the inorganic covering layer comprises a first inorganic covering part and a second inorganic covering part, the first inorganic covering part is arranged in the display area, the second inorganic covering part is arranged in the non-display area, and the transmittance of the first inorganic covering part is greater than the transmittance of the second inorganic covering part.

[0012] Optionally, the thickness of the first inorganic covering part is less than or equal to the thickness of the second inorganic covering part.

[0013] Optionally, the refractive index of the first inorganic covering part is greater than the refractive index of the second inorganic covering part.

[0014] Optionally, the refractive index of the first inorganic covering part is greater than or equal to 1.7 and less than or equal to 2.5, and the refractive index of the second inorganic covering part is greater than or equal to 1.46 and less than or equal to 2.0.

[0015] Optionally, the light shielding part comprises a plurality of first sub-light shielding parts and a plurality of second sub-light shielding parts, the first sub-light shielding parts are arranged in the display area, and the second sub-light shielding parts are arranged in the non-display area.

[0016] Optionally, the width of the first sub-light shielding part is less than or equal to the width of the second sub-light shielding part.

[0017] Optionally, the plurality of first sub-light shielding parts are arranged in a longitudinal and horizontal intersection manner and enclose a plurality of first openings, and the plurality of second sub-light shielding parts are arranged in a longitudinal and horizontal intersection manner and enclose a plurality of second openings.

[0018] The light filtering part comprises a plurality of first sub-light filtering parts and a plurality of second sub-light filtering parts, the first sub-light filtering parts are arranged in the display area and arranged in the corresponding first openings, and the second sub-light filtering parts are arranged in the non-display area and arranged in the corresponding second openings.

[0019] Optionally, the width of the first sub-light filtering part is greater than or equal to the width of the second sub-light filtering part.

[0020] Optionally, the light filtering part is arranged in the display area, and the light shielding part is arranged in the non-display area.

[0021] According to a second aspect of the present application, a display device is provided, comprising the display panel as described above.

[0022] In the display panel of the embodiment of the present application, the filter part in the color filter layer is arranged at least in the display area, the light shielding part in the color filter layer is arranged in the display area and the non-display area, and the inorganic covering layer is additionally arranged on the side of the color filter layer close to the array substrate, the first inorganic covering part of the inorganic covering layer is arranged in the display area, the second inorganic covering part is arranged in the non-display area, and the transmittance of the first inorganic covering part is greater than that of the second inorganic covering part, so that the color difference between the display area and the non-display area of the display panel in the screen-off state can be reduced.

[0023] Other features and advantages of the present application will be described in detail in the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0026] Figure 1 The structural schematic diagram of a first display panel provided for the embodiment of the present application is shown in the figure.

[0027] Figure 2 The structural schematic diagram of a second display panel provided for the embodiment of the present application is shown in the figure.

[0028] Figure 3 The structural schematic diagram of a third display panel provided for the embodiment of the present application is shown in the figure.

[0029] Figure 4 The structural schematic diagram of a display device provided for the embodiment of the present application is shown in the figure.

[0030] Explanation of reference numerals:

[0031] 1, array substrate;

[0032] 2, color filter layer; 21, filter part; 211, first sub-filter part; 2111, first red filter part; 2112, first green filter part; 2113, first blue filter part; 212, second sub-filter part; 2121, second red filter part; 2122, second green filter part; 2123, second blue filter part; 22, light shielding part; 221, first sub-light shielding part; 222, second sub-light shielding part;

[0033] 3, light-emitting device layer; 31, pixel definition layer; 32, light-emitting layer;

[0034] 4, encapsulation layer;

[0035] 5, filling layer;

[0036] 6, protective layer;

[0037] 7, inorganic cover layer; 71, first inorganic cover part; 72, second inorganic cover part;

[0038] 8, sealing layer;

[0039] 100, display panel; 200, shell; 1000, display device. DETAILED DESCRIPTION

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

[0041] The embodiments of the present application provide a display panel, which comprises a display area and a non-display area arranged at the periphery of the display area, and further comprises an array substrate, a color filter layer and an inorganic cover layer. The color filter layer is arranged on one side of the array substrate, and comprises a filter part and a light shielding part. The filter part is arranged at least in the display area, and the light shielding part is arranged in the display area and the non-display area. The inorganic cover layer is arranged on the side of the color filter layer close to the array substrate, and comprises a first inorganic cover part and a second inorganic cover part. The first inorganic cover part is arranged in the display area, and the second inorganic cover part is arranged in the non-display area. The transmittance of the first inorganic cover part is greater than that of the second inorganic cover part.

[0042] In the embodiments of the present application, by arranging the filter part of the color filter layer at least in the display area, arranging the light shielding part of the color filter layer in the display area and the non-display area, and additionally arranging the inorganic cover layer on the side of the color filter layer close to the array substrate, arranging the first inorganic cover part of the inorganic cover layer in the display area and the second inorganic cover part in the non-display area, and making the transmittance of the first inorganic cover part greater than that of the second inorganic cover part, the color difference of the display area and the non-display area of the display panel in the screen-off state can be reduced.

[0043] Please refer to Figure 1 , Figure 1A first structural schematic diagram of a display panel is provided for embodiments of the present application. The display panel 100 includes a display area AA and a non-display area NA, which is arranged at the periphery of the display area AA. The display area AA is used to display information such as images and text. The display area AA can be formed with a plurality of sub-pixels, which are arranged in an array in the display area AA. The non-display area NA can be provided with image display related circuit structures and signal lines.

[0044] Referring to Figure 1 The display panel 100 further includes an array substrate 1, a light emitting device layer 3, and a color filter layer 2. The light emitting device layer 3 is arranged on one side of the array substrate 1, and the color filter layer 2 is arranged on a side of the light emitting device layer 3 away from the array substrate 1.

[0045] In some embodiments, the array substrate 1 includes a substrate and a driving circuit layer (not shown in the figure), which is arranged on the substrate.

[0046] In some embodiments, the substrate can be a single-layer structure formed of an organic material or an inorganic material. The substrate can also be a multi-layer structure formed by stacking an organic material and an inorganic material. The organic material can be polyimide, and the inorganic material can be selected from at least one of silicon nitride, silicon oxide, and silicon oxynitride.

[0047] In some embodiments, the driving circuit layer can be a multi-layer structure formed by stacking a semiconductor layer, a conductive layer, and an inorganic insulating layer and an organic insulating layer. The driving circuit layer can be replaced with a film layer structure of a driving circuit layer in an existing display panel, which is not described here in detail.

[0048] Referring to Figure 1 The color filter layer 2 includes a plurality of filter portions 21 and light shielding portions 22, which can be arranged between adjacent filter portions 21 or on any side of the filter portions 21. The filter portions 21 can be used to transmit light of a specific color. For example, the filter portions 21 can include red filter portions, green filter portions, and blue filter portions, which can transmit red light, green light, and blue light, respectively. The filter portions 21 are made of color resist. The light shielding portions 22 can absorb visible light. The light shielding portions 22 can be arranged between adjacent filter portions 21 to prevent color mixing of light transmitted by adjacent filter portions 21 of different colors. The filter portions 21 are made of black ink, and the filter portions 21 can also be referred to as black matrices.

[0049] In the embodiments of the present application, by setting the light shielding part 22 in the display area AA and the non-display area NA at the same time, the material of the light shielding part 22 of the display area AA and the non-display area NA is the same, the transmittance is consistent, so that the color difference of the display panel in the display area AA and the non-display area NA in the screen-off state can be reduced, thereby the visual effect of integral black can be realized. It should be noted that the light shielding part 22 of the display area AA and the non-display area NA belongs to different parts in the same color filter layer, and can be formed synchronously by using the process of the color filter layer in the existing display panel, without adding new process and related equipment, so as not to increase the production cost, and also does not affect the assembly of the display panel and the whole display device.

[0050] In some embodiments, referring to Figure 1 , the display panel further comprises an inorganic covering layer 7, the inorganic covering layer 7 is arranged on the surface of the color filter layer 2 close to the array substrate 1, and the inorganic covering layer 7 is arranged in the display area AA and the non-display area NA. By covering a layer of inorganic covering layer 7 on the surface of the color filter layer 2 close to the array substrate 1, the inorganic covering layer 7 with high compactness can form an encapsulation effect on the color filter layer 2 to prevent the color filter layer 2 from being eroded by water vapor and oxygen.

[0051] In some embodiments, referring to Figure 1 , the inorganic covering layer 7 comprises a first inorganic covering part 71 and a second inorganic covering part 72, the first inorganic covering part 71 is arranged in the display area AA, the second inorganic covering part 72 is arranged in the non-display area NA, and the transmittance of the first inorganic covering part 71 is greater than that of the second inorganic covering part 72. By making the transmittance of the first inorganic covering part 71 greater than that of the second inorganic covering part 72, the influence of the first inorganic covering part 71 on the light emitting efficiency of the light emitting device layer 3 can be prevented.

[0052] In some embodiments, referring to Figure 1 , the light shielding part 22 comprises a first sub-light shielding part 221 and a second sub-light shielding part 222, the first sub-light shielding part 221 is arranged in the display area AA, and the second sub-light shielding part 222 is arranged in the non-display area NA. In the display area AA, a plurality of first sub-light shielding parts 221 are arranged in a longitudinal and transverse manner and enclose a plurality of first openings, the first openings penetrate the light shielding part 22 in the film layer thickness direction of the light shielding part 22. A plurality of filter parts 21 are arranged in the corresponding first openings respectively, and the area defined by each first opening corresponds to a sub-pixel.

[0053] In some embodiments, referring to Figure 1Since the light filtering part 21 is not arranged in the non-display area NA, the second light shielding part 222 is arranged in the non-display area NA in an integral manner, the second light shielding part 222 covers the non-display area NA, and no opening is formed in the second light shielding part 222. In this way, while reducing the color difference between the display area AA and the non-display area NA of the display panel in the screen-off state, the light leakage of the non-display area NA is prevented.

[0054] In some embodiments, referring to Figure 1 The array substrate 1 includes a plurality of conductive parts, the conductive parts are arranged in the non-display area NA, and the orthographic projection of the light shielding part 22 on the array substrate 1 covers the conductive parts.

[0055] In some embodiments, the array substrate 1 can include, but is not limited to, a light shielding layer, a gate layer, a source-drain electrode layer, and the like. The conductive parts can be conductive patterns in any one of the light shielding layer, the gate layer, the source-drain electrode layer, and the like. In the non-display area NA, the orthographic projection of the second light shielding part 222 in the light shielding part 22 on the array substrate 1 covers the conductive parts. In this way, the metal conductive patterns in the non-display area NA can be covered by the second light shielding part 222 to prevent the metal conductive patterns in the non-display area NA from reflecting light, thereby improving the color difference between the display area AA and the non-display area NA of the display panel in the screen-off state.

[0056] In some embodiments, referring to Figure 1 The display panel further includes an encapsulation layer 4, a filling layer 5, and a protective layer 6. The light emitting device layer 3 is arranged on one side of the array substrate 1. The encapsulation layer 4 is arranged on the side of the light emitting device layer 3 away from the array substrate 1. The filling layer 5 is arranged between the color filter layer 2 and the encapsulation layer 4. The protective layer 6 is arranged on the side of the color filter layer 2 away from the filling layer 5.

[0057] In some embodiments, referring to Figure 1 The light emitting device layer 3 includes an anode layer (not shown in the figure), a pixel definition layer 31, a light emitting layer 32, and a cathode layer (not shown in the figure) arranged in layers on the array substrate 1. The pixel definition layer 31 has a plurality of pixel openings in the display area AA. The light emitting layer 32 is arranged in a corresponding pixel opening. Each light emitting layer 32 is arranged in alignment with a corresponding first opening. Light emitted by the light emitting layer 32 can pass through the first opening and be emitted from the display panel.

[0058] In some embodiments, the encapsulation layer 4 can be a single-layer structure or a multi-layer structure formed by inorganic materials. The encapsulation layer 4 can also be a multi-layer thin film encapsulation structure formed by at least two layers of inorganic materials and at least one layer of organic materials.

[0059] In some embodiments, the material of the protective layer 6 can be glass. The protective layer 6 can also be referred to as a glass cover plate. The glass cover plate has high hardness and can prevent the display panel from being scratched.

[0060] In some embodiments, referring to Figure 1 , the display panel further comprises a sealing layer 8, which is arranged between the array substrate 1 and the four peripheral edges of the protective layer 6. The sealing layer 8 not only adheres the protective layer 6 to the array substrate 1, but also seals the light-emitting device layer 3, the packaging layer 4, the filling layer 5, and the color filter layer 2 between the array substrate 1 and the protective layer 6, thereby improving the packaging effect of the display panel.

[0061] Referring to Figure 2 , Figure 2 The second display panel structure provided by the embodiments of the present application is substantially the same as the display panel structure shown in Figure 1 , except that the filter part 21 is arranged in the display area AA and the non-display area NA. In the non-display area NA, a plurality of second sub-shading parts 222 are arranged in a vertical and horizontal manner and form a plurality of second openings. The plurality of filter parts 21 are arranged in the corresponding second openings. It should be noted that the filter part 21 in the non-display area NA does not participate in image display, but only extends the filter part 21 and the shading part 22 in the display area AA to the non-display area NA, thereby reducing the color difference between the display area AA and the non-display area NA of the display panel in the screen-off state.

[0062] In some embodiments, referring to Figure 2 , the filter part 21 comprises a plurality of first sub-filter parts 211 and a plurality of second sub-filter parts 212. The plurality of first sub-filter parts 211 are arranged in the display area AA and located in the corresponding first openings. Specifically, the first sub-filter part 211 comprises a first red filter part 2111, a first green filter part 2112, and a first blue filter part 2113, which are respectively arranged in the corresponding first openings.

[0063] In some embodiments, referring to Figure 2 , the plurality of second sub-filter parts 212 are arranged in the non-display area NA and located in the corresponding second openings. Specifically, the second sub-filter part 212 comprises a second red filter part 2121, a second green filter part 2122, and a second blue filter part 2123, which are respectively arranged in the corresponding second openings. The arrangement manner of the second red filter part 2121, the second green filter part 2122, and the second blue filter part 2123 can refer to the arrangement manner of the first sub-filter part 211 in the display area AA, which is not limited here.

[0064] In some embodiments, the width w1 of the first sub-shading part 221 is less than or equal to the width w2 of the second sub-shading part 222.

[0065] In some embodiments, referring to Figure 2 , the width w1 of the first sub-shading portion 221 is equal to the width w2 of the second sub-shading portion 222. By making the width w1 of the first sub-shading portion 221 equal to the width w2 of the second sub-shading portion 222, i.e., the width of the shading portion 22 in the display area AA and the portion of the non-display area NA is equal, the color difference between the non-display area NA and the display area AA of the display panel in the screen-off state can be reduced without increasing the design and manufacturing difficulty of the display panel.

[0066] In some embodiments, the width w1 of the first sub-shading portion 221 is less than the width w2 of the second sub-shading portion 222. It should be noted that since the display area AA requires a higher transmittance, the non-display area NA does not require light transmission. If the width of the second sub-shading portion 222 is less than the width of the first sub-shading portion 221, the area of the light transmission region in the non-display area NA will be increased, which will increase the risk of light leakage of the non-display area NA. By making the width w1 of the first sub-shading portion 221 less than the width w2 of the second sub-shading portion 222, the area of the shading region of the non-display area NA can be increased, thereby reducing the risk of light leakage of the non-display area NA.

[0067] In some embodiments, the width w3 of the first sub-filter portion 211 is greater than or equal to the width w4 of the second sub-filter portion 212.

[0068] In some embodiments, referring to Figure 2 , the width w3 of the first sub-filter portion 211 is equal to the width w4 of the second sub-filter portion 212. By making the width w3 of the first sub-filter portion 211 equal to the width w4 of the second sub-filter portion 212, i.e., the width of the filter portion 21 in the display area AA and the portion of the non-display area NA is equal, the color difference between the non-display area NA and the display area AA of the display panel in the screen-off state can be reduced without increasing the design and manufacturing difficulty of the display panel.

[0069] In some embodiments, the width w3 of the first sub-filter portion 211 is greater than the width w4 of the second sub-filter portion 212. It should be noted that since the display area AA requires a higher transmittance, the non-display area NA does not require light transmission, and both the first sub-filter portion 211 and the second sub-filter portion 212 can transmit part of the light. If the width w4 of the second sub-filter portion 212 is greater than the width w3 of the first sub-filter portion 211, the area of the light transmission region in the non-display area NA will be increased, which will increase the risk of light leakage of the non-display area NA. By making the width w3 of the first sub-filter portion 211 greater than the width w4 of the second sub-filter portion 212, the area of the light transmission region of the non-display area NA can be reduced, thereby reducing the risk of light leakage of the non-display area NA.

[0070] Please refer toFigure 2 The display panel further comprises an inorganic covering layer 7, which is arranged on the surface of the color filter layer 2 close to the array substrate 1, and is arranged in the display area AA and the non-display area NA. By covering the surface of the color filter layer 2 close to the array substrate 1 with the inorganic covering layer 7, the inorganic covering layer 7 can form an encapsulation effect on the color filter layer 2 to prevent the color filter layer 2 from being eroded by water vapor and oxygen.

[0071] In some embodiments, referring to Figure 2 The inorganic covering layer 7 comprises a first inorganic covering part 71 and a second inorganic covering part 72, the first inorganic covering part 71 is arranged in the display area AA, the second inorganic covering part 72 is arranged in the non-display area NA, and the transmittance of the first inorganic covering part 71 is greater than that of the second inorganic covering part 72. By making the transmittance of the first inorganic covering part 71 greater than that of the second inorganic covering part 72, the first inorganic covering part 71 can be prevented from affecting the light-emitting efficiency of the light-emitting device layer 3.

[0072] In some embodiments, referring to Figure 3 The thickness of the first inorganic covering part 71 is equal to that of the second inorganic covering part 72.

[0073] In some embodiments, referring to Figure 3 , Figure 3 A third display panel structure schematic diagram provided by an embodiment of the present application is substantially the same as the display panel structure shown in Figure 2 The difference is that the thickness of the first inorganic covering part 71 is less than that of the second inorganic covering part 72. In this way, the thickness of the first inorganic covering part 71 is reduced to increase the transmittance of the first inorganic covering part 71, so that the transmittance of the first inorganic covering part 71 is greater than that of the second inorganic covering part 72, thereby the color difference between the display area and the non-display area of the display panel in the screen-off state can be reduced without affecting the light-emitting efficiency of the light-emitting device layer 3 by the first inorganic covering part 71.

[0074] In some embodiments, the refractive index of the first inorganic covering part 71 is greater than that of the second inorganic covering part 72. In this way, the refractive index of the first inorganic covering part 71 is increased to reduce the reflectivity of the surface of the first inorganic covering part 71, thereby the transmittance of the first inorganic covering part 71 is increased, so that the transmittance of the first inorganic covering part 71 is greater than that of the second inorganic covering part 72, thereby the color difference between the display area and the non-display area of the display panel in the screen-off state can be reduced without affecting the light-emitting efficiency of the light-emitting device layer 3 by the first inorganic covering part 71.

[0075] In some embodiments, the first inorganic covering part 71 has a refractive index greater than or equal to 1.7 and less than or equal to 2.5, and the second inorganic covering part 72 has a refractive index greater than or equal to 1.46 and less than or equal to 2.0. For example, the first inorganic covering part 71 has a refractive index of 1.7, and the second inorganic covering part 72 has a refractive index of 1.46; or the first inorganic covering part 71 has a refractive index of 2.0, and the second inorganic covering part 72 has a refractive index of 1.8; or the first inorganic covering part 71 has a refractive index of 2.5, and the second inorganic covering part 72 has a refractive index of 2.0, and the like.

[0076] In some embodiments, the material of the first inorganic covering part 71 is selected from at least one of silicon oxide, silicon nitride and silicon oxynitride, and the material of the second inorganic covering part 72 is selected from at least one of silicon oxide, silicon nitride and silicon oxynitride. For example, the material of the first inorganic covering part 71 is silicon nitride, and the material of the second inorganic covering part 72 is silicon oxide; or the material of the first inorganic covering part 71 is silicon oxynitride, and the material of the second inorganic covering part 72 is silicon oxide. The refractive index of silicon nitride and silicon oxynitride is greater than that of silicon oxide, so that the transmittance of the first inorganic covering part 71 is greater than that of the second inorganic covering part 72, thereby reducing the color difference between the display area and the non-display area of the display panel in the screen-off state while preventing the first inorganic covering part 71 from affecting the light-emitting efficiency of the light-emitting device layer 3.

[0077] In some embodiments, referring to Figure 3 , the thickness of the first inorganic covering part 71 is equal to the thickness of the second inorganic covering part 72, and the refractive index of the first inorganic covering part 71 is greater than the refractive index of the second inorganic covering part 72, so that the refractive index of the first inorganic covering part 71 is increased to prevent the first inorganic covering part 71 from affecting the light-emitting efficiency of the light-emitting device layer 3.

[0078] In some embodiments, referring to Figure 3 , the thickness of the first inorganic covering part 71 is less than the thickness of the second inorganic covering part 72, and the refractive index of the first inorganic covering part 71 is greater than the refractive index of the second inorganic covering part 72, so that the transmittance of the first inorganic covering part 71 and the second inorganic covering part 72 is adjusted from the thickness and the refractive index of the material to make the transmittance of the first inorganic covering part 71 greater than that of the second inorganic covering part 72, thereby preventing the first inorganic covering part 71 from affecting the light-emitting efficiency of the light-emitting device layer 3.

[0079] In some embodiments, a first inorganic material layer is first deposited on the color filter layer 2, the first inorganic material layer is etched to form the first inorganic covering part 71 in the display area AA, and then a second inorganic material layer is deposited on the color filter layer 2, and the second inorganic material layer is etched to form the second inorganic covering part 72 in the non-display area NA.

[0080] In some embodiments, the first inorganic cover portion 71 can be formed directly on the display area AA by a metal mask plate, and the second inorganic cover portion 72 can be formed on the non-display area NA.

[0081] According to the display panel provided by the above-mentioned embodiments of the present application, the embodiments of the present application further provide a display device. Please refer to Figure 4 , Figure 4 FIG. 1 is a structural schematic diagram of a display device provided by an embodiment of the present application. The display device 1000 includes a display panel 100 and a housing 200. The display panel 100 is arranged on the housing 200. The display panel 100 can be any one of the display panels provided by the above-mentioned embodiments. The display device provided by the embodiments of the present application can achieve the same technical effects as the display panel provided by any one of the above-mentioned embodiments, and thus the description is not repeated here.

[0082] The embodiments of the present application have the following beneficial effects: The embodiments of the present application provide a display panel and a display device. The display panel includes a display area and a non-display area arranged at the periphery of the display area. The display panel further includes an array substrate, a light-emitting device layer, a color filter layer, and an inorganic cover layer. The light-emitting device layer is arranged on one side of the array substrate. The color filter layer is arranged on a side of the light-emitting device layer away from the array substrate. The color filter layer includes a plurality of filter portions and a light-blocking portion. The filter portions are arranged at least on the display area, and the light-blocking portion is arranged on the display area and the non-display area. An inorganic cover layer is additionally arranged on a side of the color filter layer close to the array substrate. A first inorganic cover portion of the inorganic cover layer is arranged on the display area, and a second inorganic cover portion of the inorganic cover layer is arranged on the non-display area. The transmittance of the first inorganic cover portion is greater than the transmittance of the second inorganic cover portion. The color difference of the display panel in the display area and the non-display area in the screen-off state can be reduced.

[0083] In the description of the present application, the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first” and “second” can explicitly or implicitly include one or more features. In the description of the present application, the meaning of “a plurality of” is two or more, unless otherwise specifically limited.

[0084] In the above-mentioned embodiments, the description of each embodiment has its own focus. The parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0085] The embodiments, implementation manners and related technical features of the present application can be combined or replaced with each other without conflict.

[0086] The above are only the preferred embodiments of the present application, and do not limit the present application in any form, but any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution of the present application and according to the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A display panel, characterized by, The display panel comprises a display area and a non-display area, the non-display area is arranged at the periphery of the display area, and the display panel further comprises: an array substrate; a light-emitting device layer arranged on one side of the array substrate; a color filter layer arranged on the side of the light-emitting device layer away from the array substrate, the color filter layer comprising a plurality of filter portions and a plurality of light-shielding portions; and an inorganic cover layer arranged on the side of the color filter layer close to the array substrate. The filter portions are arranged at least in the display area, the light-shielding portions are arranged in the display area and the non-display area, the inorganic cover layer comprises a first inorganic cover portion and a second inorganic cover portion, the first inorganic cover portion is arranged in the display area, the second inorganic cover portion is arranged in the non-display area, and the transmittance of the first inorganic cover portion is greater than that of the second inorganic cover portion.

2. The display panel of claim 1, wherein, The thickness of the first inorganic cover portion is less than or equal to the thickness of the second inorganic cover portion.

3. The display panel of claim 1, wherein, The refractive index of the first inorganic cover portion is greater than that of the second inorganic cover portion.

4. The display panel of claim 3, wherein, The refractive index of the first inorganic cover portion is greater than or equal to 1.7 and less than or equal to 2.5, and the refractive index of the second inorganic cover portion is greater than or equal to 1.46 and less than or equal to 2.

0.

5. The display panel of claim 1, wherein, The light-shielding portions comprise a plurality of first sub-light-shielding portions and a plurality of second sub-light-shielding portions, the first sub-light-shielding portions are arranged in the display area, and the second sub-light-shielding portions are arranged in the non-display area.

6. The display panel of claim 5, wherein, The width of the first sub-light-shielding portions is less than or equal to the width of the second sub-light-shielding portions.

7. The display panel of claim 5, wherein, The first sub-light-shielding portions are arranged in a longitudinal and transverse manner and enclose a plurality of first openings, and the second sub-light-shielding portions are arranged in a longitudinal and transverse manner and enclose a plurality of second openings. The filter portions comprise a plurality of first sub-filter portions and a plurality of second sub-filter portions, the first sub-filter portions are arranged in the display area and in the corresponding first openings, and the second sub-filter portions are arranged in the non-display area and in the corresponding second openings.

8. The display panel of claim 7, wherein, The width of the first sub-filter portions is greater than or equal to the width of the second sub-filter portions.

9. The display panel of claim 1, wherein, The filter portions are arranged in the display area, and the light-shielding portions are arranged in the non-display area.

10. A display device, characterized by comprising: The display panel comprises a display panel as claimed in any one of claims 1 to 9. The display panel comprises a display panel as claimed in any one of claims 1 to 9.

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