Display panel, display module and mobile terminal

Abstract

The application discloses a display panel, a display module and a mobile terminal. The display panel comprises a substrate, a light-emitting device layer arranged on the substrate, and a color film layer arranged on the light-emitting device layer. The color film layer comprises a light-blocking layer and a plurality of color resistance units embedded in the light-blocking layer. The light-blocking layer comprises a first light-blocking part arranged close to a cutting surface of the display panel. The first light-blocking part comprises a first edge close to one side of the cutting surface. The substrate comprises a second edge close to one side of the cutting surface. The first edge to the cutting surface is spaced apart from the second edge to the cutting surface, so that the light-blocking layer is arranged separately from the cutting surface. This avoids carbonization of the light-blocking material caused by high temperature of a laser L during cutting of the panel, and thus avoids carbon residues caused by carbonization remaining in edge gaps of the display panel, thereby improving the cleanliness of the product.

Description

TECHNICAL FIELD

[0001] The present application relates to the display technical field, and particularly relates to a display panel, a display module and a mobile terminal. BACKGROUND

[0002] OLED (Organic Light-Emitting Diode) panels have the advantages of lightness, large viewing angle and power saving, and become the mainstream of future development.

[0003] In the existing OLED display panel, in order to reduce the thickness of the display panel, the OLED panel can be made by adopting a depolarizing plate technology, that is, a color resistance layer and a black matrix layer are used to replace the existing polarizing plate. When the panel is cut, the black matrix on the periphery of the display panel needs to be cut by using a laser L, and the high temperature of the laser L will cause carbonization of the black matrix, and the carbonized carbon powder may be left in the edge gap of the display panel, affecting the cleanliness of the display panel.

[0004] Therefore, there is an urgent need for a display panel to solve the above technical problems. SUMMARY

[0005] The present application provides a display panel, a display module and a mobile terminal to solve the technical problem of carbon powder existing in the edge gap of the existing display panel.

[0006] To solve the above-mentioned solutions, the technical solutions provided by the present application are as follows:

[0007] The present application provides a display panel, which comprises:

[0008] a substrate;

[0009] a light emitting device layer disposed on the substrate; and

[0010] a color film layer disposed on the light emitting device layer, the color film layer comprising a light shielding layer and a plurality of color resistance units embedded in the light shielding layer, the light shielding layer comprising a first light shielding portion disposed close to a cutting surface of the display panel;

[0011] wherein the first light shielding portion comprises a first edge close to one side of the cutting surface, the substrate comprises a second edge close to one side of the cutting surface, and the distance from the first edge to the cutting surface is greater than the distance from the second edge to the cutting surface.

[0012] In the display panel of the present application, the distance from the first edge to the cutting surface is greater than or equal to 50 microns and less than or equal to 150 microns.

[0013] In the display panel of the present application, the light shielding layer further comprises a second light shielding part away from the cutting surface, and the thickness of the second light shielding part is greater than the thickness of the first light shielding part.

[0014] In the display panel of the present application, the display panel further comprises a first planar layer arranged on the color film layer, and the first planar layer covers the color film layer.

[0015] In the display panel of the present application, the first planar layer covers the first light shielding part and extends to the cutting surface.

[0016] In the display panel of the present application, the display panel further comprises a first planar layer arranged on the color film layer, and the first planar layer covers the color film layer.

[0017] In the display panel of the present application, the first planar layer covers the first light shielding part and extends to the cutting surface.

[0018] In the display panel of the present application, the thickness of the first planar layer is less than or equal to the thickness of the second light shielding part.

[0019] In the display panel of the present application, the distance between the film layer boundary on the side of the display panel close to the cutting surface and the second edge gradually increases in the direction from the substrate to the color film layer.

[0020] In the display panel of the present application, the acute angle between the cutting surface and the substrate ranges from 60° to 80°.

[0021] In the display panel of the present application, the display panel comprises a plurality of organic layers, and at least one of the organic layers is arranged on the side close to the cutting surface and is provided with a black material.

[0022] The present application further provides a display module, which comprises the display panel and a cover layer arranged on the display panel.

[0023] In the display module of the present application, the orthographic projection of the display panel on the cover layer is located in the cover layer.

[0024] The present application further provides a mobile terminal, which comprises a terminal body and the display module, and the terminal body and the display module are combined into one body.

[0025] Beneficial effects: the application discloses a display panel and a display module; the display panel comprises a substrate, a light-emitting device layer arranged on the substrate, and a color film layer arranged on the light-emitting device layer; the color film layer comprises a light-blocking layer and a plurality of color resistance units embedded in the light-blocking layer; the light-blocking layer comprises a first light-blocking part arranged close to a cutting surface of the display panel; the first light-blocking part comprises a first edge close to one side of the cutting surface; the substrate comprises a second edge close to one side of the cutting surface; the first edge to the cutting surface is spaced apart from the second edge to the cutting surface, so that the light-blocking layer is arranged separately from the cutting surface, thereby avoiding carbonization of the light-blocking material due to high temperature of the laser L during cutting of the panel, and further avoiding carbon residue after carbonization remaining in the edge gap of the display panel, and improving the cleanliness of the product. BRIEF DESCRIPTION OF DRAWINGS

[0026] The technical solutions and other beneficial effects of the application will be apparent from the following detailed description of specific embodiments of the application, combined with the accompanying drawings.

[0027] Figure 1 It is a sectional view of the existing display panel;

[0028] Figure 2 It is an enlarged view of the abnormal area of the existing display panel;

[0029] Figure 3 It is a cutting schematic diagram of the display panel of the application;

[0030] Figure 4 It is Figure 3 the first kind of sectional view of section AA;

[0031] Figure 5 It is Figure 4 the detailed structure diagram of part of the film layer;

[0032] Figure 6 It is a schematic diagram of the Gaussian spot of the laser;

[0033] Figure 7 It is a top view structure diagram of the display panel of the application in the cutting area;

[0034] Figure 8 It is a sectional structure diagram of the display panel of the application in the cutting area;

[0035] Figure 9 It is Figure 3 the second kind of sectional view of section AA;

[0036] Figure 10 It is Figure 3 the third kind of sectional view of section AA;

[0037] Figure 11 It is Figure 3A cross-sectional view of the middle section AA before cutting;

[0038] Figure 12 A structural schematic diagram of a display module is shown in the present application. DETAILED DESCRIPTION

[0039] 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, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] Please refer to Figure 1 , Figure 1 A film layer structure diagram after cutting of an existing display panel. In an existing OLED display panel, in order to reduce the thickness of the display panel, it can adopt a depolarizing sheet technology to manufacture the OLED panel, that is, a color resistance layer and a black matrix layer are used to replace the existing polarizing sheet, and in order to ensure the flatness of the product, a first flat layer is usually coated on the color film layer, and a protective layer is attached on the first flat layer to protect the film layer. When cutting the panel, the temperature of the laser L may carbonize the black light-shielding layer 71 close to the cutting surface 200, and because the peeling force between the first protective layer 81 and the first flat layer 80 is small, the carbonized black material enters the gap between the first protective layer 81 and the first flat layer 80, affecting the cleanliness of the display panel. Please refer to Figure 2 , the structure of the circle in the figure Figure 1 black unevenness in the region BB. Therefore, the present application provides a display panel to solve the above technical problems

[0041] Please refer to Figures 3 to 12 , the present application provides a display panel 100, which can include a substrate 10, a light emitting device layer 30 and a color film layer 70, the light emitting device layer 30 is arranged on the substrate 10; the color film layer 70 is arranged on the light emitting device layer 30, the color film layer 70 includes a light-shielding layer 71 and a plurality of color resistance units 72 embedded in the light-shielding layer 71, the light-shielding layer 71 includes a first light-shielding part 711 arranged close to a cutting surface 200 of the display panel 100;

[0042] Wherein, the first light-shielding part 711 includes a first edge M1 close to one side of the cutting surface 200, the substrate 10 includes a second edge M2 close to one side of the cutting surface 200, and the distance between the first edge M1 and the cutting surface 200 is greater than the distance between the second edge M2 and the cutting surface 200.

[0043] The present application separates the light shielding layer 71 from the cutting surface 200 by making the distance between the first edge M1 and the cutting surface greater than the distance between the second edge M2 and the cutting surface, so as to avoid carbonization of the light shielding material due to high temperature of the laser L during cutting of the display panel, thereby avoiding carbon residue in the edge gap of the display panel 100 after carbonization, and improving the cleanliness of the product.

[0044] The technical solutions of the present application will be described in combination with specific embodiments.

[0045] Please refer to Figure 3 , Figure 3 The dashed line in the figure is a cutting path GG of a target panel, and the shape enclosed by the cutting path GG is the peripheral shape of the display panel 100.

[0046] Please refer to Figure 4 and Figure 5 , Figure 4 is Figure 3 a first cross-sectional view of section AA, Figure 5 is Figure 4 a detailed structure diagram of part of the film layer.

[0047] The display panel 100 can include a thin film transistor array layer 20 disposed on the substrate 10, a pixel definition layer 40 disposed on the thin film transistor array layer 20, a light emitting device layer 30 disposed in the same layer as the pixel definition layer 40, an encapsulation layer 50 disposed on the pixel definition layer 40, a touch layer 60 disposed on the encapsulation layer 50, a color film layer 70 disposed on the touch layer 60, a first planar layer 80 disposed on the color film layer 70, and a first protective layer 81 disposed on the first planar layer 80.

[0048] In the present embodiment, the material of the substrate 10 can be glass, quartz, polyimide, or the like.

[0049] In the present embodiment, please refer to Figure 5 , the thin film transistor array layer 20 can include a plurality of thin film transistors 21, which can be etch stop type, back channel etch type, or divided into bottom gate thin film transistors, top gate thin film transistors, and the like according to the position of the gate and the active layer, and the specific structure is not limited. For example, Figure 5The thin film transistor 21 shown in the figure is a top-gate thin film transistor, which can include a light shielding metal layer 211 disposed on the substrate 10, a buffer layer 212 disposed on the light shielding metal layer 211, an active layer 213 disposed on the buffer layer 212, a gate insulating layer 214 disposed on the active layer 213, a gate electrode layer 215 disposed on the gate insulating layer 214, an interlayer insulating layer 216 disposed on the gate electrode layer 215, a source-drain electrode layer 217 disposed on the interlayer insulating layer 216, and a second planar layer 218 disposed on the source-drain electrode layer 217.

[0050] In the embodiment, referring to Figure 5 , the display panel 100 can further include an anode layer 31 disposed on the second planar layer 218, a light-emitting layer 33 disposed on the anode layer 31, and a cathode layer 32 disposed on the light-emitting layer 33. The anode layer 31 includes a plurality of anodes 311, the pixel definition layer 40 includes a plurality of pixel openings corresponding to the plurality of anodes 311 one by one, and each pixel opening corresponds to expose an upper surface of an anode 311, and the light-emitting layer 33 can include a plurality of light-emitting pixels corresponding to the plurality of anodes 311 one by one.

[0051] In the embodiment, referring to Figure 4 , the encapsulation layer 50 is covered on the pixel definition layer 40 and continuously covers a plurality of pixel openings and a plurality of light-emitting pixels; wherein the encapsulation layer 50 can at least include a first inorganic encapsulation layer, a first organic encapsulation layer and a second inorganic encapsulation layer which are stacked on the pixel definition layer 40.

[0052] In the embodiment, referring to Figure 4 , the touch layer 60 can include a first touch metal layer and a second touch metal layer disposed on the encapsulation layer 50, and an insulating layer disposed between the first touch metal layer and the second touch metal layer.

[0053] In the embodiment, the touch layer 60 provided by the embodiment can be mutual capacitance or self-capacitance.

[0054] In the embodiment, referring to Figure 4 , the color filter layer 70 can be disposed on the touch layer 60, and the color filter layer 70 can include a light shielding layer 71 and a plurality of color resistance units 72 of different colors embedded in the light shielding layer 71, one color resistance unit 72 corresponding to one light-emitting pixel, and the color of the color resistance unit 72 being the same as the light emitted by the corresponding light-emitting pixel.

[0055] In the embodiment, referring to Figure 4The light-emitting layer 33 includes a first light-emitting pixel 331 emitting a first color, a second light-emitting pixel 332 emitting a second color, and a third light-emitting pixel 333 emitting a third color, and the color filter layer 70 includes a first color-resistance unit 721, a second color-resistance unit 722, and a third color-resistance unit 723, the first light-emitting pixel 331 corresponding to the first color-resistance unit 721, the second light-emitting pixel 332 corresponding to the second color-resistance unit 722, and the third light-emitting pixel 333 corresponding to the third color-resistance unit 723.

[0056] In the embodiment, the first light-emitting pixel 331 is a red light-emitting pixel, the second light-emitting pixel 332 is a green light-emitting pixel, the third light-emitting pixel 333 is a blue light-emitting pixel, the first color-resistance unit 721 is a red color resistance, the second color-resistance unit 722 is a green color resistance, and the third color-resistance unit 723 is a blue color resistance.

[0057] In the embodiment, the orthographic projection of the first light-emitting pixel 331 on the first color-resistance unit 721 is located in the first color-resistance unit 721, the orthographic projection of the second light-emitting pixel 332 on the second color-resistance unit 722 is located in the second color-resistance unit 722, and the orthographic projection of the third light-emitting pixel 333 on the third color-resistance unit 723 is located in the third color-resistance unit 723.

[0058] In the embodiment, the material of the first planar layer 80 can be the same organic material as the second planar layer 218.

[0059] In the embodiment, the material of the first protective layer 81 can be a flexible material such as polyethylene terephthalate.

[0060] In the embodiment, the display panel 100 can further include a back plate 90 and a second protective layer 91 attached to the back plate 90, the back plate 90 being arranged on the side of the substrate 10 away from the light-emitting direction, and the second protective layer 91 being arranged on the side of the back plate 90 away from the light-emitting direction.

[0061] In the embodiment, the second protective layer 91 has the same function as the first protective layer 81, and the material of the second protective layer 91 can be the same as that of the first protective layer 81.

[0062] In the embodiment, the peeling force between the first protective layer 81 and the first planar layer 80 is 1-4 g / inch, and the peeling force between the second protective layer 91 and the back plate 90 is 45-55 g / inch.

[0063] In the present embodiment, the first protective layer 81 and the second protective layer 91 are intermediate products in the manufacturing process of the display panel 100, and only exist in the middle of the manufacturing process to protect the first planar layer 80 and other film layers below; in the final product, the first protective layer 81 and the second protective layer 91 will be peeled off.

[0064] Please refer to Figure 4 , the display panel 100 can include a display area 300 and a non-display area 400 located on the periphery of the display area 300, and a cutting area 500 and cutting products 600 left after cutting are provided on the side away from the non-display area 400.

[0065] During the cutting process of the display panel 100, a laser L is used to cut the display panel 100, for example Figure 4 , the product on the left side of the cutting area 500 is the target product, and the product on the right side of the cutting area 500 is the useless cutting product 600.

[0066] In the present embodiment, since the spot of the laser L is a Gaussian spot, please refer to Figure 6 , the laser L has the characteristics of high intermediate energy and gradually decreasing energy around the periphery, so the film layer profile after cutting with the laser L can present an inverted triangular shape as shown in Figure 4 .

[0067] In the display panel 100 of the present application, please refer to Figure 4 , in the direction from the substrate 10 to the color film layer 70, the distance between the film layer boundary on the side close to the cutting surface 200 of the display panel 100 and the second edge M2 gradually increases; that is, in the direction from the substrate 10 to the color film layer 70, without considering the patterning of each film layer, the outer contour area of the film layer in the display panel 100 gradually decreases.

[0068] In the present embodiment, in addition to the characteristics of the laser L itself, since the film layer on the side close to the light emitting direction has more organic materials, such as the first planar layer 80, the color film layer 70, the organic encapsulation layer, and the pixel definition layer 40, etc., the high temperature effect of the laser L will cause the carbonization of the organic materials, generating carbon dust that affects the cleanliness of the panel, therefore the area of the film layer on the side close to the light emitting direction can be smaller than the area of the film layer on the side away from the light emitting direction, that is, the distance between the boundary of the film layer on the side close to the light emitting direction and the second edge M2 is greater than the distance between the boundary of the film layer on the side away from the light emitting direction and the second edge M2, to avoid the accumulation of carbon dust.

[0069] In the cutting process, as the laser L moves away from the light-emitting direction of the display panel 100, the cutting surface 200 of the display panel 100 is a bevel with a certain angle of inclination due to the characteristics of the laser L itself.

[0070] In the embodiment, the acute angle m between the cutting surface 200 and the substrate 10 can range from 60° to 80°, and the acute angle m can be the actual angle between the cutting surface 200 and the substrate 10. Due to the characteristics of the laser L itself, the angle between the cutting surface 200 and the substrate 10 can be close to 90° by controlling the energy of the laser L, but currently it can only reach 80° due to the limitations of the process. In the future, the side of the display panel 100 can be close to 90° by edge grinding or other processing.

[0071] In the display panel 100 of the present application, the display panel 100 includes multiple organic layers, and at least one of the organic layers is provided with a black material on the side close to the cutting surface 200.

[0072] In the embodiment, since the display panel 100 includes organic layers such as the first flat layer 80, the color film layer 70, the organic encapsulation layer, and the pixel definition layer 40, the high temperature of the laser L can cause carbonization of the organic material. Therefore, after cutting is completed, carbon residues after carbonization can exist in the edge area of the above-mentioned film layers, and in the subsequent edge grinding process, the carbon residues cannot be completely eliminated and thus can remain on the cutting surface 200. At the same time, the carbonized organic layer adheres to the side of the organic layer, which can play a certain protective role for the organic material in the display area 300, such as blocking water and oxygen.

[0073] Figure 7 and Figure 8 The structures shown in FIGS. 1A and 1B are respectively a top view structure diagram and a cross-sectional structure diagram of a display panel before complete cutting. The existing display panel generally uses a laser L to cut a mother board, and the high temperature of the laser L has a certain carbonization effect on the organic material. Therefore, the present application separates the light-shielding material that can be carbonized from the cutting area 500.

[0074] In the display panel 100 of the present application, the light-shielding layer 71 includes a first light-shielding part 711 close to the cutting surface 200 of the display panel 100, and the distance between the first edge M1 of the first light-shielding part 711 and the cutting surface 200 is greater than or equal to 50 microns and less than or equal to 150 microns.

[0075] Please refer to Figure 7 and Figure 8, the area a is the distance between the boundary of the light shielding part and the center of the cutting path GG, the area b is the width of the cutting path GG, and the area d is the heat affected zone H of the laser L, that is, the structure in the area b will be cut, and the structure in the area d will be affected due to the high temperature of the laser L, and therefore, in order to avoid carbonization of the light shielding material due to the high temperature of the laser L, the present application needs to make the boundary of the first light shielding part 711 away from the area affected by the laser L, that is, a needs to be greater than d.

[0076] In the present embodiment, the difference c between a and b can be in the range of 50um≤c≤150um. That is, the minimum distance between the boundary of the first light shielding part 711 and the boundary of the cutting path GG is 50 microns, and the maximum distance is 150 microns.

[0077] The present embodiment makes the first light shielding part 711 away from the center of the cutting path GG, so that the light shielding material in the non-display area 400 is away from the center of the cutting path GG, avoiding carbonization of the light shielding material by the laser L with a higher temperature, and at the same time solving the residual carbon between the first protective layer 81 and the planar layer.

[0078] In the display panel 100 of the present application, please refer to Figure 9 The light shielding layer 71 further includes a second light shielding part 712 away from the cutting surface 200, and the thickness of the second light shielding part 712 is greater than the thickness of the first light shielding part 711.

[0079] In the present embodiment, the light shielding layer 71 can include the second light shielding part 712 arranged in the display area 300 and the first light shielding part 711 arranged in the non-display area 400, and since the first light shielding part 711 is arranged close to the cutting surface 200, that is, the distance between the boundary of the first light shielding part 711 and the laser L with a higher temperature is small, there is a possibility that the boundary of the first light shielding part 711 is carbonized by the laser L; and the present application can reduce the generation of carbon by reducing the thickness of the first light shielding part 711 in the case of carbonization of the first light shielding part 711, thereby alleviating the residual amount of carbon between the first protective layer 81 and the planar layer.

[0080] In the display panel 100 of the present application, the display panel 100 further includes a first planar layer 80 arranged on the color film layer 70, the first planar layer 80 covers the color film layer 70, and the first planar layer 80 can cover the first light shielding part 711 and extend to the cutting surface 200.

[0081] Please refer to Figure 9 and 10The light shielding layer 71 is provided with a first notch 710 near the cutting surface 200 of the display panel 100, and the first notch 710 faces the cutting surface 200. Meanwhile, the first planar layer 80 is provided with a second notch 810 near the cutting surface 200, and the second notch 810 faces the cutting surface 200.

[0082] Please refer to Figure 9 and 10 Because the thicknesses of the color resistance unit 72 and the light shielding layer 71 are inconsistent, the flatness of the color film layer 70 is low after the process of the color film is completed, and therefore the first planar layer 80 needs to be arranged on the color film layer 70. Meanwhile, because the first planar layer 80 is composed of organic material, the material of the planar layer can also be carbonized to form black carbon dust when the laser L is cut, and therefore the side of the first planar layer 80 near the cutting surface 200 cannot be provided with the planar layer material.

[0083] Please refer to Figure 11 , Figure 11 FIG. 1 is a sectional structure diagram of the display panel 100 before cutting according to the present application. The display panel 100 and the first planar layer 80 are hollowed out on the side near the cutting path GG. Because the first planar layer 80 and the light shielding layer 71 can be composed of photoresist type organic material, the hollowed-out area can be formed through a photo mask process, for example, the edge of the first planar layer 80 and the light shielding layer 71 is hollowed out through an exposure and development process, so that the boundary of the first planar layer 80 and the light shielding layer 71 is away from the cutting path GG.

[0084] In the present embodiment, the second notch 810 corresponds to the first notch 710, and the area of the second notch 810 can be greater than or equal to the area of the first notch 710, so as to further increase the distance between the boundary of the second notch 810 and the cutting surface 200.

[0085] The present application forms the second notch 810 near the cutting surface 200 of the first planar layer 80, so that the boundary of the first planar layer 80 is away from the cutting surface 200, that is, the boundary of the first planar layer 80 is away from the cutting path GG, which avoids the carbonization of the organic material constituting the first planar layer 80 by the high temperature of the laser L, and avoids the residual of the carbon dust between the first planar layer 80 and the first protective layer 81 after carbonization.

[0086] In the display panel 100 of the present application, please refer to Figure 4The thickness of the first flat layer 80 can be less than or equal to the thickness of the second light shielding portion 712. Since the first flat layer 80 is arranged close to the cutting surface 200, in order to avoid the proportion of the first flat layer 80 being carbonized by the laser beam L, the thickness of the first flat layer 80 can be reduced.

[0087] In the embodiment, since the first flat layer 80 is mainly used to make the surface of the concave-convex color film layer 70 flat, the first flat layer 80 only needs to ensure the flatness of the surface of the color film layer 70, that is, the minimum thickness of the first flat layer 80 is the difference between the thickness of the color resistance unit 72 and the thickness of the light shielding layer 71, so as to ensure that the thickness of the area corresponding to the light shielding layer 71 and the thickness of the area corresponding to the color resistance unit 72 are the same.

[0088] The application further provides a display module 700, please refer to Figure 12 The display module 700 comprises the display panel 100 and the cover layer CG arranged on the display panel 100. The orthographic projection of the display panel 100 on the cover layer is located in the cover layer CG.

[0089] In the embodiment, compared with the structure in Figure 4 , the structure in Figure 12 removes the first protective layer 81 and the second protective layer 91 in Figure 4 , and the display panel 100 can be attached to the first flat layer 80 and the cover layer CG by means of optical adhesive.

[0090] In the embodiment, the cover layer CG mainly protects the panel structure below, so in the top view direction of the display module 700, the outer boundary of the cover layer CG should be larger than the outer boundary of the display panel 100.

[0091] The application further provides a mobile terminal comprising a terminal main body and the display module. The terminal main body and the display module are combined into one. The terminal main body can be a circuit board or other devices bound to the display module. The mobile terminal can comprise a mobile phone, a television, a notebook computer and other electronic devices.

[0092] The application discloses a display panel, a display module and a mobile terminal; the display panel comprises a substrate, a light-emitting device layer arranged on the substrate, and a color film layer arranged on the light-emitting device layer; the color film layer comprises a light-blocking layer and a plurality of color resistance units embedded in the light-blocking layer; the light-blocking layer comprises a first light-blocking part arranged close to a cutting surface of the display panel; the first light-blocking part comprises a first edge close to one side of the cutting surface; the substrate comprises a second edge close to one side of the cutting surface; the first edge to the cutting surface is spaced apart from the second edge to the cutting surface, so that the light-blocking layer is arranged separately from the cutting surface, thereby avoiding carbonization of the light-blocking material caused by high temperature of a laser L during cutting of the display panel, and further avoiding carbon residue remaining in an edge gap of the display panel, and improving the cleanliness of the product.

[0093] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0094] The display panel, the display module and the mobile terminal provided by the embodiments of the application are described in detail above, and the principles and implementation manners of the application are described by applying specific examples; the above embodiment descriptions are only used to help understand the technical solutions and the core ideas of the application; those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced equivalently; and the modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A display panel, characterized by, The display panel comprises: a substrate; a light-emitting device layer disposed on the substrate; a packaging layer disposed on a side of the light-emitting device layer away from the substrate; a color film layer disposed on a side of the packaging layer away from the substrate, the color film layer comprising a light-shielding layer and a plurality of color resist units embedded in the light-shielding layer, the light-shielding layer comprising a first light-shielding portion disposed close to a cutting surface of the display panel and a second light-shielding portion disposed away from the cutting surface, the second light-shielding portion having a thickness greater than that of the first light-shielding portion; wherein the first light-shielding portion comprises a first edge close to the cutting surface, the substrate comprises a second edge close to the cutting surface, a distance between the first edge and the cutting surface is greater than a distance between the second edge and the cutting surface, and an angle between a surface of the substrate facing the light-emitting device layer and the cutting surface is an acute angle. The distance between the first edge and the cutting surface is greater than or equal to 50 microns and less than or equal to 150 microns.

2. The display panel of claim 1, wherein, The display panel further comprises a first planar layer disposed on a side of the color film layer away from the substrate, the first planar layer covering the first edge of the first light-shielding portion and the color resist units and extending toward the cutting surface.

3. The display panel of claim 1, wherein, The display panel further comprises a first planar layer disposed on a side of the color film layer away from the substrate; 4. The display panel of claim 1, wherein, wherein a region of the first planar layer close to the cutting surface is provided with a notch, the notch faces the cutting surface, and an edge of the first planar layer facing the notch and an edge of the first light-shielding portion facing the notch are located on the same plane. The thickness of the first planar layer is less than or equal to the thickness of the second light-shielding portion.

5. The display panel of claim 3 or 4, wherein, In a direction from the substrate to the color film layer, an area of a film layer on a side of the display panel away from the substrate is less than an area of a film layer on a side of the display panel close to the substrate.

6. The display panel of any one of claims 1 to 4, wherein, The cutting surface is inclined toward a display area of the display panel.

7. The display panel of any one of claims 1 to 4, wherein, The acute angle between the cutting surface and the substrate ranges from 60° to 80°.

8. The display panel of claim 7, wherein, The display panel comprises a plurality of organic layers, and at least one of the organic layers is provided with a black material on a side close to the cutting surface.

9. The display panel of any one of claims 1 to 4, wherein, The display module comprises the display panel according to any one of claims 1 to 9 and a cover layer located on the display panel; 10. A display module, characterized by wherein a normal projection of the cutting surface of the display panel on the cover layer is located in the cover layer. The mobile terminal comprises a terminal main body and the display module according to claim 10, and the terminal main body and the display module are combined into one.

11. A mobile terminal, characterized by ​

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