Display panel, display module and mobile terminal

Abstract

The invention 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 shielding layer and a plurality of color resistance units embedded in the light shielding layer, and the light shielding layer comprises a first light shielding part arranged close to a cutting surface of the display panel; the first shading part comprises a first edge close to one side of the cutting surface, and the substrate comprises a second edge close to one side of the cutting surface; the distance between the first edge and the cutting surface is larger than the distance between the second edge and the cutting surface, so that the shading layer and the cutting surface are separated, the situation that a shading material is carbonized due to the high temperature of laser L in the panel cutting process is avoided, then carbonized carbon chips are prevented from remaining in edge gaps of the display panel, and the display quality is improved. And the cleanliness of the product is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel, a display module, and a mobile terminal. Background Art

[0002] OLED (Organic Light-Emitting Diode) panels have the advantages of being light, thin, having a wide viewing angle and saving power, and will become the mainstream of future development.

[0003] In the existing OLED display panel, in order to reduce the thickness of the display panel, the depolarizer technology can be used to manufacture the OLED panel, that is, the existing polarizer is replaced by a color resist layer and a black matrix layer. When cutting the panel, since the black matrix at the periphery of the display panel needs to be cut by laser L, the high temperature of the laser L will cause the carbonization of the black matrix, and the carbonized carbon chips may remain in the edge gap of the display panel, affecting the cleanliness of the display panel.

[0004] Therefore, a display panel is urgently needed to solve the above technical problems. Summary of the invention

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

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

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

[0008] substrate;

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

[0010] A color filter layer, disposed on the light-emitting device layer, the color filter 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 cut surface of the display panel;

[0011] The first light shielding portion includes a first edge close to the cutting surface, the substrate includes a second edge close to the cutting surface, and a distance from the first edge to the cutting surface is greater than a distance from the second edge to the cutting surface.

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

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

[0014] In the display panel of the present application, the display panel further comprises a first flat layer disposed on the color filter layer, wherein the first flat layer covers the color filter layer;

[0015] The first planar layer covers the first light shielding portion and extends toward the cutting surface.

[0016] In the display panel of the present application, the display panel further comprises a first flat layer disposed on the color filter layer, wherein the first flat layer covers the color filter layer;

[0017] A first notch is provided in a region of the light shielding layer close to a cutting surface of the display panel, and a second notch is provided in a region of the first planarizing layer close to the cutting surface. The first notch and the second notch face 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 portion.

[0019] In the display panel of the present application, in the direction from the substrate to the color filter layer, 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.

[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 includes multiple organic layers, and a black material is disposed on a side of at least one of the organic layers close to the cut surface.

[0022] The present application also proposes a display module, which includes the above-mentioned display panel and a cover layer located on the display panel;

[0023] Wherein, the orthographic projection of the display panel on the cover layer is located inside the cover layer.

[0024] The present application also proposes a mobile terminal, wherein the mobile terminal includes a terminal body and the above-mentioned display module, and the terminal body and the display module are combined into one.

[0025] Beneficial effects: The present application discloses a display panel and a display module; the display panel includes 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 includes a shading layer and a plurality of color-resistance units embedded in the shading layer, the shading layer includes a first shading portion arranged near a cutting surface of the display panel; the first shading portion includes a first edge near a side of the cutting surface, and the substrate includes a second edge near a side of the cutting surface; the present application separates the shading layer from the cutting surface by making the distance from the first edge to the cutting surface greater than the distance from the second edge to the cutting surface, so as to avoid carbonization of the shading material due to the high temperature of the laser L during the cutting process of the panel, thereby avoiding carbonized carbon chips remaining in the edge gap of the display panel, thereby improving the cleanliness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0027] Figure 1 is a cross-sectional view of a conventional display panel;

[0028] Figure 2 is an enlarged view of an abnormal area of ​​a conventional display panel;

[0029] Figure 3 A schematic diagram showing the panel being cut for this application;

[0030] Figure 4 for Figure 3 The first type of cross-section view of the middle section AA;

[0031] Figure 5 for Figure 4 Detailed structural diagram of the middle membrane layer;

[0032] Figure 6 Schematic diagram of the Gaussian spot of laser;

[0033] Figure 7 This is a top view of the structure of the display panel in the cutting area of ​​this application;

[0034] Figure 8 A cross-sectional structural diagram of the display panel in the cutting area for this application;

[0035] Fig. 9 for Figure 3 The second cross-sectional view of the middle section AA;

[0036] Fig.10 for Figure 3 The third cross-sectional view of the middle section AA;

[0037] Fig.11 for Figure 3Sectional view of the middle section AA before cutting;

[0038] Fig.12 This is a schematic diagram of the structure of the display module of this application. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with 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 of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0040] See also Figure 1 , Figure 1 The figure is a diagram of the film structure of the existing display panel after cutting. In the existing OLED display panel, in order to reduce the thickness of the display panel, it can use the depolarizer technology to make the OLED panel, that is, replace the existing polarizer with a color resist layer and a black matrix layer. In order to ensure the flatness of the product, it is usually coated with a first flat layer on the color filter layer, and a protective layer is attached to the first flat layer to protect the film layer. When cutting the panel, the temperature of the laser L may carbonize the black shading layer 71 close to the cutting surface 200. At the same time, due to the small peeling force between the first protective layer 81 and the first flat layer 80, 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. For details, please refer to Figure 2 , the circle structure in the figure Figure 1 Therefore, the present application proposes a display panel to solve the above technical problems.

[0041] See also Figures 3 to 12 The present application provides a display panel 100, which may include a substrate 10, a light-emitting device layer 30 and a color filter layer 70, wherein the light-emitting device layer 30 is disposed on the substrate 10; the color filter layer 70 is disposed on the light-emitting device layer 30, the color filter layer 70 includes a light-shielding layer 71 and a plurality of color-resistance units 72 embedded in the light-shielding layer 71, and the light-shielding layer 71 includes a first light-shielding portion 711 disposed near a cutting surface 200 of the display panel 100;

[0042] The first light shielding portion 711 includes a first edge M1 close to the cutting surface 200 , the substrate 10 includes a second edge M2 close to the cutting surface 200 , and a distance from the first edge M1 to the cutting surface 200 is greater than a distance from the second edge M2 to the cutting surface 200 .

[0043] The present application makes the distance from the first edge M1 to the cutting surface greater than the distance from the second edge M2 to the cutting surface, so that the shading layer 71 is separated from the cutting surface 200, so as to avoid the shading material being carbonized due to the high temperature of the laser L during the cutting process of the panel, thereby avoiding the carbonized carbon chips remaining in the edge gap of the display panel 100, thereby improving the cleanliness of the product.

[0044] The technical solution of the present application is now described in conjunction with specific embodiments.

[0045] See also Figure 3 , Figure 3 The middle dotted line is a cutting path GG of the target panel, and the shape surrounded by the cutting path GG is the outer shape of the display panel 100 .

[0046] See also Figure 4 and Figure 5 , Figure 4 for Figure 3 The first type of cross-section of the middle section AA, Figure 5 for Figure 4 Detailed structural diagram of the middle membrane layer.

[0047] The display panel 100 may 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 on 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 filter layer 70 disposed on the touch layer 60, a first planarization layer 80 disposed on the color filter layer 70, and a first protective layer 81 disposed on the first planarization layer 80.

[0048] In this embodiment, the substrate 10 may be made of glass, quartz, polyimide or other materials.

[0049] In this example, see Figure 5 The thin film transistor array layer 20 may include a plurality of thin film transistors 21, and the thin film transistors 21 may be of an etching barrier type, a back channel etching type, or may be divided into a bottom gate thin film transistor, a top gate thin film transistor, etc. structure according to the position of the gate and the active layer, and there is no specific limitation. For example, Figure 5The thin film transistor 21 shown in the figure is a top-gate thin film transistor, which may include a shading metal layer 211 arranged on the substrate 10, a buffer layer 212 arranged on the shading metal layer 211, an active layer 213 arranged on the buffer layer 212, a gate insulating layer 214 arranged on the active layer 213, a gate layer 215 arranged on the gate insulating layer 214, an inter-insulating layer 216 arranged on the gate layer 215, a source-drain layer 217 arranged on the inter-insulating layer 216, and a second planarizing layer 218 arranged on the source-drain layer 217.

[0050] In this example, see Figure 5 The display panel 100 may further include an anode layer 31 disposed on the second flat 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, and each of the pixel openings exposes an upper surface of the anode 311, and the light emitting layer 33 may include a plurality of light emitting pixels corresponding to the plurality of anodes 311.

[0051] In this example, see Figure 4 The encapsulation layer 50 covers the pixel definition layer 40 and continuously covers multiple pixel openings and multiple light-emitting pixels; wherein the encapsulation layer 50 may at least include a first inorganic encapsulation layer, a first organic encapsulation layer and a second inorganic encapsulation layer stacked on the pixel definition layer 40.

[0052] In this example, see Figure 4 The touch layer 60 may include a first touch metal layer and a second touch metal layer disposed on the packaging layer 50 , and an insulating layer disposed between the first touch metal layer and the second touch metal layer.

[0053] In this embodiment, the touch layer 60 provided in the embodiment of the present application may be of a mutual capacitance type or a self capacitance type.

[0054] In this example, see Figure 4 The color film layer 70 can be arranged on the touch layer 60, and the color film 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 of the color-resistance units 72 corresponds to one of the luminous pixels, and the color of the color-resistance unit 72 is the same as the light emitted by the corresponding luminous pixel.

[0055] In this example, see Figure 4The light-emitting layer 33 includes a first light-emitting pixel 331 that emits a first color, a second light-emitting pixel 332 that emits a second color, and a third light-emitting pixel 333 that emits a third color. The color film 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 corresponds to the first color resistance unit 721, the second light-emitting pixel 332 corresponds to the second color resistance unit 722, and the third light-emitting pixel 333 corresponds to the third color resistance unit 723.

[0056] In this 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 this embodiment, the orthographic projection of the first light-emitting pixel 331 on the first color resist unit 721 is located in the first color resist unit 721, the orthographic projection of the second light-emitting pixel 332 on the second color resist unit 722 is located in the second color resist unit 722, and the orthographic projection of the third light-emitting pixel 333 on the third color resist unit 723 is located in the third color resist unit 723.

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

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

[0060] In this embodiment, the display panel 100 may further include a back panel 90 and a second protective layer 91 bonded to the back panel 90, wherein the back panel 90 is disposed on the side of the substrate 10 away from the light emitting direction, and the second protective film is located on the side of the back panel 90 away from the light emitting direction.

[0061] In this embodiment, the function of the second protective layer 91 is the same as that of 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 this embodiment, the peeling force between the first protective layer 81 and the first flat layer 80 is 1 to 4 g / inch, and the peeling force between the second protective layer 91 and the backing plate 90 is 45 to 55 g / inch.

[0063] In this 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 process to protect the first flat layer 80 and other film layer structures thereunder; in the final product, the first protective layer 81 and the second protective layer 91 will be peeled off.

[0064] See also Figure 4 The display panel 100 may include a display area 300 and a non-display area 400 located outside the display area 300 , and a cutting area 500 and a cutting product 600 left by cutting are provided on a side away from the non-display area 400 .

[0065] During the cutting process of the display panel 100, a laser L is required to cut the display panel 100, for example Figure 4 In the structure, 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 this embodiment, since the spot of the laser light L is a Gaussian spot, please refer to Figure 6 As shown, the laser L has the characteristics of high energy in the middle and decreasing energy in the surrounding areas, so the cross section of the film layer cut by the laser L may appear as follows Figure 4 The inverted triangle shape shown.

[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 of the display panel 100 close to the cutting surface 200 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 this embodiment, in addition to the characteristics of the laser laser L itself, since the film layer on the side close to the light emitting direction has more organic materials, such as the first flat layer 80, the color filter layer 70, the organic packaging layer and the pixel definition layer 40, and the high temperature of the laser laser L will carbonize the organic material and produce carbon chips that affect 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, thereby avoiding the accumulation of carbon chips.

[0069] During the cutting process, as the laser light L moves away from the light emitting direction of the display panel 100 , the cutting surface 200 of the display panel 100 is influenced by the characteristics of the laser light L, so that the cutting surface 200 is an inclined surface with a certain inclination angle.

[0070] In this embodiment, the acute angle m between the cut surface 200 and the substrate 10 may range from 60° to 80°, and the acute angle m may be the actual angle between the cut surface 200 and the substrate 10. Due to the characteristics of the laser L itself, the energy of the laser L can be controlled to make the angle between the cut surface 200 and the substrate 10 as close to 90° as possible, but currently it can only reach 80° due to process limitations, and the side of the display panel 100 can be subsequently ground or otherwise processed to make the angle between the side of the display panel 100 and the substrate 10 close to 90°.

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

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

[0073] Figure 7 and Figure 8 The structures shown are respectively a top view and a cross-sectional view of the display panel before it is completely cut. Existing display panels generally use a laser L to cut the motherboard, and the high temperature of the laser L has a certain carbonization effect on organic materials. Therefore, the present application separates the shading material that may be carbonized from the cutting area 500.

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

[0075] See also Figure 7 and Figure 8In the figure, area a is the distance between the boundary of the shading portion and the center of the cutting path GG, area b is the width of the cutting path GG, and area d is the heat-affected zone H of the laser laser L, that is, the structure in area b will be cut, and the structure in area d will be affected by the high temperature of the laser laser L. Therefore, in order to avoid the shading material from being carbonized due to the high temperature of the laser laser L, the present application needs to make the boundary of the first shading portion 711 away from the area that can be affected by the laser laser L, that is, a needs to be greater than d.

[0076] In this embodiment, the difference c between a and b may be in the range of: 50um≤c≤150um, that is, the minimum distance between the boundary of the first light shielding portion 711 and the boundary of the cutting street GG is 50 micrometers, and the maximum distance is 150 micrometers.

[0077] In this embodiment, the first shading portion 711 is arranged away from the center of the cutting line GG so that the shading material in the non-display area 400 is at a certain distance from the center of the cutting line GG, thereby avoiding carbonization of the shading material by the laser L with a higher temperature and solving the problem of residual carbon debris between the first protective layer 81 and the flat layer.

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

[0079] In this embodiment, the shading layer 71 may include a second shading portion 712 arranged in the display area 300 and a first shading portion 711 arranged in the non-display area 400. Since the first shading portion 711 is arranged close to the cutting surface 200, that is, when the display panel 100 is cut, the distance between the boundary of the first shading portion 711 and the laser laser L with a higher temperature is small, and there is a possibility that the laser laser L carbonizes the boundary of the first shading portion 711. In the present application, by reducing the thickness of the first shading portion 711, the generation of carbon chips can be reduced when the first shading portion 711 is carbonized, thereby alleviating the residual amount of carbon chips between the first protective layer 81 and the flat layer.

[0080] In the display panel 100 of the present application, the display panel 100 further includes a first flat layer 80 disposed on the color filter layer 70 , the first flat layer 80 covers the color filter layer 70 , and the first flat layer 80 may cover the first light shielding portion 711 and extend toward the cutting surface 200 .

[0081] See also Fig. 9 and 10A first notch 710 is provided in the area of ​​the light shielding layer 71 close to the cutting surface 200 of the display panel 100, and the first notch 710 faces the cutting surface 200; at the same time, a second notch 810 is provided in the area of ​​the first planarizing layer 80 close to the cutting surface 200, and the second notch 810 faces the cutting surface 200.

[0082] See also Fig. 9 and 10 Since the thickness of the color resist unit 72 and the light shielding layer 71 are inconsistent, the flatness of the color filter layer 70 is low after the color filter process is completed, so the first flat layer 80 needs to be set on the color filter layer 70; at the same time, since the first flat layer 80 is made of organic material, the material of the flat layer can also be carbonized to form black carbon chips when the laser L is cutting, so the flat layer material cannot be set on the side of the first flat layer 80 close to the cutting surface 200.

[0083] See also Fig.11 , Fig.11 This is a cross-sectional structural diagram of the display panel 100 of the present application at section AA before cutting. The display panel 100 and the first planar layer 80 are hollowed out on the side close to the cutting line GG. Since both the first planar layer 80 and the light shielding layer 71 can be made of photoresist organic materials, the hollowed-out area can be formed by a photomask process, for example, by an exposure and development process, the edges of the first planar layer 80 and the light shielding layer 71 are hollowed out so that the boundary between the first planar layer 80 and the light shielding layer 71 is away from the cutting line GG.

[0084] In this embodiment, the second notch 810 corresponds to the first notch 710 , and the area of ​​the second notch 810 may 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 a second notch 810 in the area of ​​the first flat layer 80 close to the cutting surface 200 so that the boundary of the first flat layer 80 is away from the cutting surface 200. Even if the boundary of the first flat layer 80 is away from the cutting path GG, the organic material constituting the first flat layer 80 is prevented from being carbonized by the high temperature of the laser L, and carbonized carbon chips are prevented from remaining between the first flat layer 80 and the first protective layer 81.

[0086] In the display panel 100 of the present application, please refer to Figure 4, the thickness of the first flat layer 80 may be less than or equal to the thickness of the second light shielding portion 712. Since the first flat layer 80 is disposed close to the cutting surface 200, in order to prevent the first flat layer 80 from being carbonized by the laser L, the present application may reduce the thickness of the first flat layer 80.

[0087] In this embodiment, since the first flat layer 80 is mainly used to flatten the surface of the uneven color filter layer 70, the first flat layer 80 only needs to ensure the flatness of the surface of the color filter layer 70, that is, the minimum thickness of the first flat layer 80 is the difference between the thickness of the color resist unit 72 and the light shielding layer 71, so as to ensure that the thickness of the area corresponding to the light shielding layer 71 is the same as the thickness of the area corresponding to the color resist unit 72.

[0088] This application also proposes a display module 700, see Fig.12 The display module 700 includes the above-mentioned display panel 100 and a cover layer CG located 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 this embodiment, Figure 4 Compared with the structure in Fig.12 The structure in Figure 4 The first protective layer 81 and the second protective layer 91 are removed, and at the same time, the display panel 100 can bond the first flat layer 80 and the cover layer CG by optical adhesive.

[0090] In this 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 present application also proposes a mobile terminal, which includes a terminal body and the above-mentioned display module, wherein the terminal body and the display module are integrated into one. The terminal body can be a circuit board or other device bound to the display module. The mobile terminal can include electronic devices such as mobile phones, televisions, and laptops.

[0092] The present application discloses a display panel, a display module and a mobile terminal; the display panel includes 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 includes a shading layer and a plurality of color-resistance units embedded in the shading layer, the shading layer includes a first shading portion arranged near a cutting surface of the display panel; the first shading portion includes a first edge near a side of the cutting surface, and the substrate includes a second edge near a side of the cutting surface; the present application separates the shading layer from the cutting surface by making the distance from the first edge to the cutting surface greater than the distance from the second edge to the cutting surface, so as to avoid carbonization of the shading material due to the high temperature of the laser L during the cutting process of the panel, thereby avoiding carbonized carbon chips remaining in the edge gap of the display panel, thereby improving the cleanliness of the product.

[0093] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0094] The above is a detailed introduction to a display panel, a display module, and a mobile terminal provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized in that: include: substrate; A light emitting device layer is disposed on the substrate; as well as An encapsulation layer, disposed on a side of the light-emitting device layer away from the substrate; A color filter layer is arranged on a side of the encapsulation layer away from the substrate, the color filter layer comprises a light shielding layer and a plurality of color resistance units embedded in the light shielding layer, and the light shielding layer and the color resistance units extend to a cutting surface of the display panel; The light shielding layer includes a first light shielding portion disposed close to a cutting surface of the display panel and a second light shielding portion away from the cutting surface, and a thickness of the second light shielding portion is greater than a thickness of the first light shielding portion.

2. The display panel according to claim 1, characterized in that: The display panel further includes a first flat layer disposed on a side of the color filter layer away from the substrate, wherein the first flat layer covers the first light shielding portion and the color resistance unit and extends toward the cutting surface.

3. The display panel according to claim 1, characterized in that: The display panel further comprises a first flat layer disposed on a side of the color filter layer away from the substrate, wherein the first flat layer covers the color filter layer; Wherein, a notch is provided in a region of the first flat layer close to the cutting surface, and the notch faces the cutting surface.

4. The display panel according to claim 2 or 3, characterized in that: 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 according to any one of claims 1 to 3, characterized in that: In the direction from the substrate to the color filter layer, the area of ​​the film layer on the side of the display panel far from the substrate is smaller than the area of ​​the film layer on the side close to the substrate.

6. The display panel according to claim 5, characterized in that: In the direction from the substrate to the color filter layer, the distance between the film layer boundary of the display panel close to the cutting surface and the edge of the substrate close to the cutting surface gradually increases.

7. The display panel according to claim 5, characterized in that: The acute angle between the cutting surface and the substrate ranges from 60° to 80°.

8. The display panel according to any one of claims 1 to 3, characterized in that: The display panel includes multiple organic layers, and a black material is disposed on a side of at least one of the organic layers close to the cutting surface.

9. A display module, characterized in that: The display module comprises a display panel according to any one of claims 1 to 9 and a cover layer located on the display panel; Wherein, the orthographic projection of the display panel on the cover layer is located inside the cover layer.

10. A mobile terminal, characterized in that: The mobile terminal comprises a terminal body and the display module as claimed in claim 9, wherein the terminal body and the display module are combined into one body.

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