Display screen assembly, flexible display screen and electronic device

Abstract

The invention discloses a display screen assembly, a flexible display screen and an electronic device, and relates to the technical field of display. In the invention, the color filter layer and the light-emitting layer are stacked, and the color filter layer comprises a plurality of filter units; a black matrix is arranged between the light-emitting layer and the color filter layer, a plurality of through holes are formed in the black matrix, and in the plurality of filter units and the plurality of through holes, the filter units and the through holes are in one-to-one correspondence and are oppositely arranged; and the light emitted by the light-emitting layer sequentially passes through the through hole and the light filtering unit. The arrangement position of the black matrix is changed, so that the black matrix is closer to the light-emitting layer than the color filter layer. Therefore, when the relative position of the color filter layer and the light-emitting layer is not changed, compared with the technical scheme that the black matrix is located in the color filter layer, the brightness attenuation can be reduced, and the visual angle color cast can be improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display screen assembly, a flexible display screen, and an electronic device. Background Art

[0002] Currently, most display screens use polarizers. Due to the low transmittance of polarizers, COE (Color Filter On Encapsulation) technology is used to replace polarizers to reduce power consumption by removing the polarizers. However, the brightness of the display screen components will be attenuated or the visual color will be biased. Summary of the invention

[0003] The present application provides a display screen assembly, comprising:

[0004] Luminescent layer;

[0005] a color filter layer, stacked with the light-emitting layer, comprising a plurality of filter units; and

[0006] A black matrix is ​​arranged between the light-emitting layer and the color filter layer, and the black matrix is ​​provided with a plurality of perforations. Among the plurality of filter units and the plurality of perforations, the filter units correspond to the perforations one by one and are arranged relatively to each other, so that the light emitted by the light-emitting layer passes through the perforations and the filter units in sequence.

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

[0008] Luminescent layer;

[0009] a color filter layer, stacked with the light-emitting layer, comprising a plurality of filter units; and

[0010] A black matrix is ​​arranged between the light-emitting layer and the color filter layer, and the black matrix is ​​provided with a plurality of perforations. Among the plurality of filter units and the plurality of perforations, the filter units correspond to the perforations one by one and are arranged relatively to each other, so that the light emitted by the light-emitting layer passes through the perforations and the filter units in sequence.

[0011] The present application provides an electronic device, comprising:

[0012] a housing; and

[0013] The display screen assembly or the flexible display screen described above is arranged on the housing.

[0014] The present application changes the location of the black matrix so that the black matrix is ​​closer to the light-emitting layer than the color filter layer. When the relative positions of the color filter layer and the light-emitting layer remain unchanged, the present application can reduce brightness attenuation and improve visual color deviation compared to the technical solution in which the black matrix is ​​located in the color filter layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the structure of a display screen assembly in some embodiments of the present application;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the light-emitting layer in some embodiments of the embodiment shown;

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of the light emitting layer and the black matrix (BM) in some embodiments shown in the embodiment;

[0019] Figure 4 for Figure 1 A schematic diagram of the structure of the display screen assembly in the illustrated embodiment in other embodiments;

[0020] Figure 5 for Figure 4 A schematic diagram of the structure of the light-emitting layer in the embodiment shown, the black matrix and the encapsulation layer in some embodiments;

[0021] Figure 6 for Figure 5 A schematic diagram of the structure of the black matrix and the encapsulation layer in some embodiments shown in the embodiment;

[0022] Figure 7 for Figure 4 A schematic diagram of the structure of the display screen assembly in the illustrated embodiment in other embodiments;

[0023] Figure 8 for Figure 1 A schematic diagram of the structure of the light-emitting layer in the embodiment shown, the black matrix, and the color filter layer in some embodiments;

[0024] Fig. 9 for Figure 8 A schematic diagram of the structure of the filter unit in some embodiments of the embodiment shown;

[0025] Fig.10 for Figure 8 A schematic diagram of the structure of the light-emitting layer in the embodiment shown, the black matrix, and the color filter layer in some embodiments;

[0026] Fig.11 for Figure 1 A schematic diagram of the structure of the color filter layer and the protective layer in the embodiment shown in the figure cooperating in other embodiments;

[0027] Fig.12 for Fig.11 A schematic diagram of the structure of the color filter layer and the protective layer in the embodiment shown in the figure cooperating in other embodiments;

[0028] Fig.13 Schematic diagram of the structure of an electronic device in some embodiments of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be appreciated that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some but not all structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present application.

[0030] All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] See also Figure 1, Figure 1 The structure diagram of the display screen assembly in some embodiments of the present application. The display screen assembly 100 can improve brightness attenuation and improve visual color deviation. The display screen assembly 100 can be an AMOLED (Active-matrix organic light emitting diode, active matrix organic light emitting diode or active matrix organic light emitting diode) display module, or a Micro LED (micro light emitting diode) display module, or even an LCD (Liquid Crystal Display) display module or a QLED (Quantum dots Light-emitting Diodes) display module. The type of the display screen assembly 100 is not limited here.

[0033] In some embodiments, the display screen assembly 100 may be a flexible display screen.

[0034] See also Figure 1 The display screen assembly 100 may include an auxiliary layer 10, a light-emitting layer 20, a black matrix 30, a color filter layer 40 and a protective layer 50 which are stacked in sequence. A driving circuit 11 is provided in the auxiliary layer 10, and the light-emitting layer 20 is driven to emit light by the driving circuit 11. The color filter layer 40 is used to adjust the chromaticity of the light emitted by the light-emitting layer 20, so that the display screen assembly 100 presents a pattern and a picture with good chromaticity. The black matrix 30 can cooperate with the color filter layer 40 to reduce the risk of light leakage and color confusion. The protective layer 50 is used as the outer surface of the display screen assembly 100 to protect the display screen assembly 100. The light-emitting layer 20 can emit light with the assistance of the auxiliary layer 10, such as the driving circuit 11. The light passes through the black matrix 30, and then through the color filter layer 40 to adjust the chromaticity, and then through the protective layer 50 to emit the display screen assembly 100 for display. The black matrix 30 cooperates with the protective layer 50 to improve the brightness attenuation and the color deviation of the visual field.

[0035] See also Figure 1 , a driving circuit 11 may be provided in the auxiliary layer 10, and of course, other stacks that can cooperate with the driving circuit 11 may also be provided. The stack may be one or more of a plurality of single stacks such as a planar layer, an interlayer dielectric layer, a gate insulating layer, a buffer layer, an insulating layer, and a substrate layer. Of course, the stack may not be limited to the embodiments listed here, and may also include other single stacks.

[0036] See also Figure 1The light-emitting layer 20 may have pixels, such as R (red) pixels, B (blue) pixels, G (green) pixels, W (white) pixels, or pixels that emit infrared light. The light-emitting layer 20 may select, design, and arrange pixels according to actual needs or the type requirements of the display screen assembly 100, which is not limited here. The light-emitting layer 20, such as pixels, may emit light under the drive of the auxiliary layer 10, such as the driving circuit 11. It can be understood that the light-emitting layer 20 may be set differently based on the type of the display screen assembly 100. Specifically, the light-emitting layer 20 may be set corresponding to the type of the display screen assembly 100.

[0037] See also Figure 2 , Figure 2 for Figure 1 The schematic diagram of the structure of the light-emitting layer 20 in some embodiments of the embodiment shown. The light-emitting layer 20 may include a pixel definition layer 21 having a plurality of installation spaces 201, a cathode layer 22 stacked with the pixel definition layer 21, a light-emitting unit 23 arranged in the installation space 201 and electrically connected to the cathode layer 22, and an anode 24 electrically connected to the light-emitting unit 23 and the driving circuit 11 respectively. The pixel definition layer 21, the cathode layer 22, and the color filter layer 40 are stacked in sequence. The pixel definition layer 21 can limit the size and density of the pixel through the installation space 201, and thus can also limit the resolution of the display screen assembly 100. The driving circuit 11 is electrically connected with the anode 24, the light-emitting unit 23, and the cathode layer 22 in sequence to form a circuit loop, so that the driving circuit 11 can drive the light-emitting unit 23 to emit light. The light-emitting unit 23 can be used as the light-emitting body of the pixel, and can emit red, blue or green light. There can be multiple light-emitting units 23, and the number, light color, arrangement method, etc. are set according to actual needs. In the plurality of installation spaces 201 and the plurality of light emitting units 23, the installation spaces 201 correspond to the light emitting units 23 one by one, and one light emitting unit 23 is installed in one installation space 201. In some embodiments, the anode 24 may be disposed in the auxiliary layer 10, and thus the anode 24 may not be a part of the light emitting layer 20.

[0038] In some embodiments, the structure accommodated in the installation space 201 of the pixel definition layer 21 constitutes a pixel, that is, the pixel is arranged in the installation space 201 .

[0039] In some embodiments, the size of the pixel can be limited to improve the balance of white light attenuation and color shift. For example, in the direction perpendicular to the thickness direction of the pixel definition layer 21, the cross-sectional area of ​​the installation space 201 accommodating the light-emitting unit 23, such as the B pixel light-emitting unit, is larger than the cross-sectional area of ​​the installation space 201 accommodating the light-emitting unit 23, such as the R pixel light-emitting unit, and the cross-sectional area of ​​the installation space 201 accommodating the light-emitting unit 23, such as the R pixel light-emitting unit, is larger than the cross-sectional area of ​​the installation space 201 accommodating the light-emitting unit 23, such as the G pixel light-emitting unit.

[0040] See also Figure 3 , Figure 3 for Figure 1 The schematic diagram of the structure of the light-emitting layer 20 and the black matrix 30 in some embodiments shown in the embodiment. The inventors found that in the COE technology, the black matrix 30 will block the light emission of the pixels, thereby causing the brightness of the display assembly 100 to decay or the color of the visual color to be biased. However, the present application adjusts the distance between the black matrix 30 and the light-emitting layer 20 so that the black matrix 30 is closer to the light-emitting layer 20 than the color filter layer 40. The black matrix 30 can reduce the reflectivity of the cathode layer 22 to the light reflection.

[0041] In some embodiments, the change in the position of the black matrix 30 can at least shorten the distance between the light-emitting layer 20 , such as the light-emitting unit 23 , and the black matrix 30 in the thickness direction of the light-emitting layer 20 , which can effectively improve brightness attenuation and visual color deviation.

[0042] See also Figure 3 The black matrix 30 is provided with a plurality of through holes 301. Among the plurality of light-emitting units 23 and the plurality of through holes 301, the light-emitting units 23 correspond to the through holes 301 one by one and are arranged opposite to each other, so that the light emitted by the light-emitting layer 20, for example, the light-emitting units 23, sequentially passes through the through holes 301 and the color filter layer 40. That is, among the plurality of installation spaces 201 and the plurality of through holes 301, the installation spaces 201 correspond to the through holes 301 one by one and are arranged opposite to each other, so that the light emitted by the light-emitting units 23 accommodated in the installation spaces 201 passes through the through holes 301.

[0043] In some embodiments, the through hole 301 may be filled with a material between the light emitting layer 20 and the color filter layer 40 in the display screen assembly 100 .

[0044] In some embodiments, the material of the black matrix 30 is a black solid metal, which can reduce the thickness of the black matrix 30, so that the thickness of the black matrix 30 can be lower. In some embodiments, the thickness of the black matrix 30 can be 300nm. Of course, the thickness of the black matrix 30 can also be adjusted as needed, without limitation.

[0045] The black matrix 30 can shield light and improve brightness attenuation. In some embodiments, the surface of the black matrix 30 has an ashing layer formed by ashing to further reduce the reflectivity of the surface of the black matrix 30 and achieve the effect of a black matrix made of organic material.

[0046] See also Figure 4 , Figure 4 for Figure 1The structure diagram of the display screen assembly 100 in other embodiments of the embodiment shown. The display screen assembly 100 may also include an encapsulation layer 60. The light-emitting layer 20, the encapsulation layer 60, and the color filter layer 40 are stacked in sequence. The encapsulation layer 60 can encapsulate the light-emitting layer 20 and protect the light-emitting layer 20.

[0047] See also Figure 5 , Figure 5 for Figure 4 The schematic diagram of the structure of the light-emitting layer 20 in the embodiment shown cooperates with the black matrix 30 and the encapsulation layer 60 in some embodiments. The black matrix 30 can be arranged in the encapsulation layer 60. The perforation 301 can be filled with the material in the encapsulation layer 60. In some embodiments, the surface of the black matrix 30 facing the light-emitting layer 20 is not covered by the encapsulation layer 60. In some embodiments, the surface of the black matrix 30 facing the color filter layer 40 is not covered by the encapsulation layer 60. In some embodiments, the entire black matrix 30 is covered by the encapsulation layer 60. In some embodiments, the black matrix 30 is directly arranged on the light-emitting layer 20, such as the cathode layer 22. For example, the black matrix 30 is arranged on the surface of the cathode layer 22 facing the color filter layer 40.

[0048] See also Figure 6 , Figure 6 for Figure 5 The black matrix 30 and the encapsulation layer 60 in the embodiment shown are schematic diagrams of the structure of the cooperation in some embodiments. The encapsulation layer 60 includes a first sub-encapsulation layer 61 and a second sub-encapsulation layer 62. The light-emitting layer 20 and the first sub-encapsulation layer 61, the second sub-encapsulation layer 62, and the color filter layer 40 are stacked in sequence.

[0049] In some embodiments, the black matrix 30 is disposed in the first sub-encapsulation layer 61. In some embodiments, the perforation 301 may be filled with the material in the first sub-encapsulation layer 61. In some embodiments, the surface of the black matrix 30 facing the light-emitting layer 20 is not covered by the first sub-encapsulation layer 61. In some embodiments, the surface of the black matrix 30 facing the color filter layer 40 is not covered by the first sub-encapsulation layer 61. In some embodiments, the surface of the black matrix 30 facing the light-emitting layer 20 is covered by the second sub-encapsulation layer 62. In some embodiments, the black matrix 30 is entirely covered by the first sub-encapsulation layer 61.

[0050] In some embodiments, the black matrix 30 is disposed in the second sub-encapsulation layer 62. In some embodiments, the perforation 301 may be filled with material in the second sub-encapsulation layer 62. In some embodiments, the surface of the black matrix 30 facing the light-emitting layer 20 is not covered by the second sub-encapsulation layer 62. In some embodiments, the surface of the black matrix 30 facing the color filter layer 40 is not covered by the second sub-encapsulation layer 62. In some embodiments, the entire black matrix 30 is covered by the second sub-encapsulation layer 62. In some embodiments, the surface of the black matrix 30 facing the light-emitting layer 20 is covered by the first sub-encapsulation layer 61.

[0051] In some embodiments, the black matrix 30 is partially disposed in the first sub-encapsulation layer 61 and partially disposed in the second sub-encapsulation layer 62. In some embodiments, the through-hole 301 may be filled with materials in the first sub-encapsulation layer 61 and the second sub-encapsulation layer 62. In some embodiments, in some embodiments, a surface of the black matrix 30 facing the light-emitting layer 20 is not covered by the first sub-encapsulation layer 61. In some embodiments, a surface of the black matrix 30 facing the color filter layer 40 is not covered by the second sub-encapsulation layer 62.

[0052] In some embodiments, the refractive index of the first sub-encapsulation layer 61 is less than the refractive index of the second sub-encapsulation layer 62, thereby improving the low light extraction efficiency caused by total reflection inside the display assembly 100. Of course, the refractive index of the first sub-encapsulation layer 61 may also be greater than or equal to the refractive index of the second sub-encapsulation layer 62.

[0053] In some embodiments, in order to further improve the brightness attenuation, the first sub-encapsulation layer 61 may be an OC (OverCoating) layer, and the first sub-encapsulation layer 61 may be made by a coating process, thereby ensuring the flatness of the film layer in a thinner thickness and reducing the stress of the second sub-encapsulation layer 62. In some embodiments, the material of the first sub-encapsulation layer 61 may be OC glue. In some embodiments, the first sub-encapsulation layer 61 may be a negative photoresist insulating photosensitive glue, and of course, it may also be other materials.

[0054] In some embodiments, the thickness of the first sub-encapsulation layer 61 may be 3-6 μm, so as to reduce the overall thickness of the encapsulation layer 60 , improve brightness attenuation, and improve color deviation of the viewing angle.

[0055] In some embodiments, the second sub-encapsulation layer 62 may be a CVD (Chemical Vapor Deposition) layer.

[0056] See also Figure 7 , Figure 7 for Figure 4The structure diagram of the display screen assembly 100 in other embodiments of the embodiment shown. The display screen assembly 100 may also include a touch layer 70, and the light-emitting layer 20, the encapsulation layer 60, the touch layer 70, and the color filter layer 40 are stacked in sequence. The setting of the touch layer 70 enables the display screen assembly 100 to have both touch function and display function. In some embodiments, the black matrix 30 may also be set in the touch layer 70.

[0057] See also Figure 8 , Figure 8 for Figure 1 The structure diagram of the light-emitting layer 20, the black matrix 30, and the color filter layer 40 in some embodiments shown in the embodiment is shown. The color filter layer 40 may include a plurality of filter units 41. Among the plurality of filter units 41 and a plurality of pixels such as the light-emitting unit 23, the filter units 41 correspond to the pixels such as the light-emitting unit 23 one by one and are arranged relatively, so that the light emitted by the pixel such as the light-emitting unit 23 can pass through the filter unit 41, so as to adjust the chromaticity of the light emitted by the pixel such as the light-emitting unit 23.

[0058] In some embodiments, the R pixel, such as the light emitting unit 23, emits red light, and the red light passes through the filter unit 41, such as a red filter, to form red light, so that the filter unit 41, such as a red filter, adjusts the chromaticity of the red light emitted by the R pixel, such as the light emitting unit 23.

[0059] In some embodiments, a B pixel, such as the light emitting unit 23, emits blue light, and the blue light passes through the filter unit 41, such as a blue filter, to form blue light, so that the filter unit 41, such as a blue filter, adjusts the chromaticity of the blue light emitted by the B pixel, such as the light emitting unit 23.

[0060] In some embodiments, a G pixel, such as the light emitting unit 23, emits green light, and the green light passes through the filter unit 41, such as a green filter, to form green light, so that the filter unit 41, such as a green filter, adjusts the chromaticity of the green light emitted by the G pixel, such as the light emitting unit 23.

[0061] It can be understood that the filter unit 41 can improve the chromaticity uniformity of the light emitted by the pixel, such as the light emitting unit 23 .

[0062] In some embodiments, among the plurality of filter units 41 and the plurality of perforations 301 , the filter units 41 correspond to the perforations 301 one by one and are arranged relatively to each other so that the light emitted by the light-emitting layer 20 , such as the light-emitting unit 23 , passes through the perforations 301 and the filter units 41 in sequence.

[0063] In some embodiments, the refractive index of the filter unit 41 is less than or equal to the refractive index of the encapsulation layer 60, thereby improving the low light extraction efficiency caused by total reflection inside the display screen assembly 100. In some embodiments, the refractive index of the filter unit 41 is equal to the refractive index of the second sub-encapsulation layer 62, and the refractive index of the filter unit 41 is less than the refractive index of the first sub-encapsulation layer 61.

[0064] In some embodiments, the filter unit 41 may have positive refractive power to shape the light and improve the light extraction efficiency of the display screen assembly 100 at a normal viewing angle. In some embodiments, the filter unit 41 may improve the light extraction efficiency of the display screen assembly 100 at a normal viewing angle by up to 15%.

[0065] See also Fig. 9 , Fig. 9 for Figure 8 The structure diagram of the filter unit 41 in some embodiments of the embodiment shown. The filter unit 41 includes a microlens 411 with positive refractive power. The microlens 411 is used to transmit the light emitted by the light-emitting layer 20, such as the light-emitting unit 23. The microlens 411 is used to transmit the light that passes through the perforation 301. In some embodiments, the surface of the microlens 411 facing the light-emitting layer 20 is a plane, and the surface of the side away from the light-emitting layer 20 is a convex surface. Of course, the surface setting of the microlens 411 can also be adjusted as needed without limitation. In some embodiments, the number of microlenses 411 in the filter unit 41 can be adjusted as needed without limitation.

[0066] In some embodiments, in the thickness direction of the color filter layer 40, the thickness of the filter unit 41 corresponding to the light-emitting unit 23, such as the B pixel light-emitting unit, is greater than the thickness of the filter unit 41 corresponding to the light-emitting unit 23, such as the R pixel light-emitting unit, and the thickness of the filter unit 41 corresponding to the light-emitting unit 23, such as the R pixel light-emitting unit, is greater than the thickness of the filter unit 41 corresponding to the light-emitting unit 23, such as the G pixel light-emitting unit, so as to further cooperate with the limitation on the pixel size and improve the balance of white light attenuation and color deviation.

[0067] In some embodiments, in the thickness direction of the color filter layer 40, the thickness of the filter unit 41 corresponding to the light-emitting unit 23, such as the B pixel light-emitting unit, may be 4 μm, the thickness of the filter unit 41 corresponding to the light-emitting unit 23, such as the R pixel light-emitting unit, may be 3.5 μm, and the thickness of the filter unit 41 corresponding to the light-emitting unit 23, such as the G pixel light-emitting unit, may be 3 μm.

[0068] In some embodiments, the surface of the filter unit 41 close to the black matrix 30 can be a partial surface of the color filter layer 40. In some embodiments, the surface of the filter unit 41 close to the black matrix 30 can be a surface of the color filter layer 40.

[0069] See also Figure 8 and Fig.10 , Fig.10 for Figure 8 The light emitting layer 20, the black matrix 30, and the color filter layer 40 in some embodiments are shown in the structure diagram of the embodiment. Fig.10 In the embodiment, among the plurality of filter units 41 and the plurality of through holes 301, the filter units 41 and the through holes 301 are arranged in a one-to-one correspondence, and one through hole 301 accommodates and assembles one filter unit 41. Figure 8 and Fig.10 In the case where only the position of the black matrix 30 is different and everything else is the same, it can be seen that Figure 8 The black matrix 30 is Fig.10 The black matrix 30 in the embodiment is closer to the light emitting layer 20. When the light emitting layer 20 emits light, Figure 8 The viewing angle in Fig.10 The viewing angle is larger.

[0070] Furthermore, by adjusting the distance between the black matrix 30 and the light emitting layer 20 so that the black matrix 30 is closer to the light emitting layer 20 than the filter unit 41 , the brightness attenuation of the display screen assembly 100 at a large viewing angle can be improved, and the color shift at a large viewing angle can be improved.

[0071] certainly, Figure 8 The black matrix 30 is Fig.10 The black matrix 30 in the embodiment is closer to the light emitting layer 20. Figure 8 The perspective and Fig.10 When the perspectives in are the same, Figure 8 The black matrix 30 has a relatively large shielding area A for the light-emitting layer 20, such as the light-emitting unit 23. Fig.10 The black matrix 30 has a small shielding area B for the light-emitting layer 20, such as the light-emitting unit 23, so that Figure 8 The non-light-emitting area of ​​the middle light-emitting layer 20, such as the light-emitting unit 23, is reduced, the degree of brightness attenuation at viewing angle is improved, and the color deviation of viewing angle is improved. It can be understood that Figure 8 and Fig.10 The marks in the figure are only examples for illustrating the corresponding relationships and do not limit the present application.

[0072] See also Fig.11 , Fig.11 for Figure 1The color filter layer 40 in the illustrated embodiment and the protective layer 50 in other embodiments are schematic diagrams of the structure of the cooperation. The protective layer 50 may be partially filled between two adjacent filter units 41, so that the color filter layer 40 is disposed in the protective layer 50. In some embodiments, the surface of the color filter layer 40, such as the filter unit 41, facing the light emitting unit 23 is not covered by the protective layer 50, and thus, the surface of the color filter layer 40, such as the filter unit 41, facing the light emitting unit 23 serves as the surface of the protective layer 50.

[0073] See also Fig.12 , Fig.12 for Fig.11 The color filter layer 40 and the protective layer 50 in the embodiment shown are schematic diagrams of the structure in other embodiments. The protective layer 50 may include a filter protective layer 51 and a protective cover plate 52. The light-emitting layer 20 and the color filter layer 40, the filter protective layer 51, and the protective cover plate 52 are stacked in sequence. The filter protective layer 51 is used to protect and isolate the color filter layer 40. The protective cover plate 52 serves as the outer surface of the display screen assembly 100 and is used to protect the display screen assembly 100.

[0074] In some embodiments, the filter protection layer 51 may be an OC layer. In some embodiments, the material of the first sub-encapsulation layer 61 may be an OC glue. The filter protection layer 51 may be made by a coating process, thereby ensuring the flatness of the film layer when the thickness is relatively thin. In some embodiments, the filter protection layer 51 may be a negative photoresist insulating photosensitive glue, and of course, it may also be other materials.

[0075] In some embodiments, the filter protection layer 51 may be partially filled between two adjacent filter units 41, so that the color filter layer 40 is disposed in the filter protection layer 51. In some embodiments, the surface of the color filter layer 40, such as the filter unit 41, facing the light emitting unit 23 is not covered by the filter protection layer 51, and then, the surface of the color filter layer 40, such as the filter unit 41, facing the light emitting unit 23 is used as the surface of the filter protection layer 51. In some embodiments, the surface of the color filter layer 40, such as the filter unit 41, away from the light emitting unit 23 is covered by the filter protection layer 51.

[0076] In some embodiments, the refractive index of the filter protection layer 51 is lower than the refractive index of the filter unit 41 , so as to improve the low light extraction efficiency caused by total reflection inside the display screen assembly 100 .

[0077] In some embodiments, the protective cover plate 52 can serve as the outer surface of the display screen assembly 100 for the user to touch, and can play a role in protecting the display screen assembly 100. In some embodiments, the protective cover plate 52 may include a glass cover plate 521. In some embodiments, the glass cover plate 521 may be a UTG (Ultra-Thin Glass) cover plate. In some embodiments, the protective cover plate 52 may include a flexible film 522 such as a PET (Polyethylene terephthalate) film stacked with the glass cover plate 521 such as a UTG cover plate. The flexible film 522 is disposed on the side of the glass cover plate 521 such as a UTG cover plate away from the light-emitting layer 20.

[0078] Of course, the protection cover 52 can be adjusted as needed and is not limited to the above embodiment.

[0079] Next, an electronic device is described. The electronic device can carry and install the display screen assembly 100 in the above embodiment. Fig.13 , Fig.13 Schematic diagram of the structure of the electronic device in some embodiments of the present application. The electronic device 200 may include a housing 2001 and a display screen assembly 100. The housing 2001 is used to carry the display screen assembly 100. Of course, the housing 2001 can also be used to carry electronic components such as a camera module, a battery, a mainboard, a processor, and various types of sensors in the electronic device 200.

[0080] As used herein, "electronic devices" (which may also be referred to as "terminals" or "mobile terminals" or "electronic devices") include, but are not limited to, devices configured to receive / send communication signals via a wireline connection (e.g., via a public switched telephone network (PSTN), a digital subscriber line (DSL), digital cable, a direct cable connection, and / or another data connection / network) and / or via a wireless interface (e.g., for a cellular network, a wireless local area network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and / or another communication terminal). Communication terminals configured to communicate via a wireless interface may be referred to as "wireless communication terminals," "wireless terminals," or "mobile terminals." Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / Intranet access, Web browsers, organizers, calendars, and / or global positioning system (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A mobile phone is an electronic device equipped with a cellular communication module.

[0081] The electronic device 200 may be an electronic device with a curved screen, a pull-out electronic device, a foldable electronic device, or an electronic device with a flexible display screen.

[0082] In one embodiment, the housing 2001 may be a housing-like structure, and a storage space may be provided inside to accommodate electronic components such as a camera module, a battery, a mainboard, a processor, and various types of sensors. Of course, the housing 2001 may also be configured based on the type of the electronic device 200.

[0083] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display screen assembly, characterized in that: include: Luminescent layer; A color filter layer, stacked with the light-emitting layer, comprising a plurality of filter units; as well as A black matrix is ​​arranged between the light-emitting layer and the color filter layer, and the black matrix is ​​provided with a plurality of perforations. Among the plurality of filter units and the plurality of perforations, the filter units correspond to the perforations one by one and are arranged relatively to each other, so that the light emitted by the light-emitting layer passes through the perforations and the filter units in sequence.

2. The display screen assembly according to claim 1, characterized in that: The color filter layer further comprises a filter protection layer, and the plurality of filter units are arranged in the filter protection layer.

3. The display screen assembly according to claim 2, characterized in that: A surface of each of the plurality of filter units that is away from the black matrix is ​​covered by the filter protection layer, and the refractive index of the filter protection layer is lower than the refractive index of the filter unit.

4. The display screen assembly according to claim 2, characterized in that: A surface of each of the plurality of filter units close to the black matrix is ​​configured as a partial surface of the color filter layer.

5. The display screen assembly according to any one of claims 1 to 4, characterized in that: The display screen assembly further includes a packaging layer. The light-emitting layer, the packaging layer and the color filter layer are stacked in sequence. The black matrix is ​​disposed in the packaging layer. The packaging layer is partially configured to fill each of the plurality of through holes.

6. The display screen assembly according to claim 5, characterized in that: The refractive index of the packaging layer is greater than or equal to the refractive index of the filter unit.

7. The display screen assembly according to claim 5, characterized in that: The encapsulation layer includes a first sub-encapsulation layer and a second sub-encapsulation layer. The light-emitting layer and the first sub-encapsulation layer, the second sub-encapsulation layer, and the color filter layer are stacked in sequence. The refractive index of the first sub-encapsulation layer is less than or equal to the refractive index of the second sub-encapsulation layer. The black matrix is ​​arranged in the first sub-encapsulation layer.

8. The display screen assembly according to claim 7, characterized in that: The material of the first sub-packaging layer is OC glue, and the thickness is 3-6 um.

9. The display screen assembly according to any one of claims 1 to 4, characterized in that: The filter unit comprises: The microlens has positive refractive power and is used for transmitting the light emitted by the light emitting layer and passing through the through hole.

10. The display screen assembly according to any one of claims 1 to 4, characterized in that: The light-emitting layer comprises: A pixel definition layer with multiple mounting spaces; A plurality of light-emitting units, wherein among the plurality of installation spaces and the plurality of light-emitting units, the installation spaces and the light-emitting units are arranged in a one-to-one correspondence, so that one installation space accommodates one light-emitting unit; The cathode layer, the pixel definition layer, the cathode layer, and the color filter layer are stacked in sequence, the black matrix is ​​arranged on the surface of the cathode layer facing the color filter layer, and among the multiple installation spaces and the multiple perforations, the installation spaces and the perforations correspond to each other one by one and are arranged relatively to each other so that the light emitted by the light-emitting unit accommodated in the installation space passes through the perforations.

11. The display screen assembly according to claim 10, characterized in that: The multiple light-emitting units include a red pixel light-emitting unit, a blue pixel light-emitting unit and a green pixel light-emitting unit. In the cross-section of the multiple installation spaces in a direction perpendicular to the thickness direction of the pixel definition layer, the cross-sectional area of ​​the installation space accommodating the blue pixel light-emitting unit is larger than the cross-sectional area of ​​the installation space accommodating the red pixel light-emitting unit, and the cross-sectional area of ​​the installation space accommodating the red pixel light-emitting unit is larger than the cross-sectional area of ​​the installation space accommodating the green pixel light-emitting unit.

12. The display screen assembly according to claim 11, characterized in that: The filter unit has positive refractive power. In the thickness direction of the color filter layer, the thickness of the filter unit corresponding to the blue pixel light-emitting unit is greater than the thickness of the filter unit corresponding to the red pixel light-emitting unit, and the thickness of the filter unit corresponding to the red pixel light-emitting unit is greater than the thickness of the filter unit corresponding to the green pixel light-emitting unit.

13. The display screen assembly according to any one of claims 1 to 4, characterized in that: The black matrix material is black solid metal with a thickness of 300nm.

14. The display screen assembly according to any one of claims 1 to 4, characterized in that: The display screen assembly also includes a protective cover plate, and the light-emitting layer, the color filter layer and the protective cover plate are stacked in sequence.

15. The display screen assembly according to any one of claims 1 to 4, characterized in that: The display screen assembly also includes: Encapsulation layer; The touch layer, the light emitting layer, the encapsulation layer, the touch layer and the color filter layer are stacked in sequence.

16. The display screen assembly according to any one of claims 1 to 4, characterized in that: The display screen assembly also includes: An auxiliary layer, wherein the auxiliary layer, the light-emitting layer and the color filter layer are stacked in sequence, and the auxiliary layer is provided with a driving circuit, and the driving circuit is used to drive the light-emitting layer to emit light.

17. A flexible display screen, characterized in that: include: Luminescent layer; A color filter layer, stacked with the light-emitting layer, comprising a plurality of filter units; as well as A black matrix is ​​arranged between the light-emitting layer and the color filter layer, and the black matrix is ​​provided with a plurality of perforations. Among the plurality of filter units and the plurality of perforations, the filter units correspond to the perforations one by one and are arranged relatively to each other, so that the light emitted by the light-emitting layer passes through the perforations and the filter units in sequence.

18. An electronic device, characterized in that: include: case; as well as The display screen assembly according to any one of claims 1 to 16 or the flexible display screen according to claim 17 is arranged on the shell.

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